WO2024067860A1 - Developing cartridge - Google Patents

Abstract

The present utility model relates to a developing cartridge detachably mounted in an imaging device. The developing cartridge comprises: a housing; a rotating member, which is rotatably provided in the housing; and a driving-force receiving member, a detection mechanism and an end cap, which are located at a tail end of the housing. The driving-force receiving member is used for receiving a driving force from a driving-force output member and driving the rotating member to rotate around a rotation axis extending in a first direction. The detection mechanism comprises a transmission member and a shifting member, wherein the transmission member is used for receiving the driving force from the driving-force receiving member, so as to make the shifting member interact with a shifting rod. A protrusion is arranged on the side of the end cap facing the housing. During detection, the transmission member rotates around the protrusion so as to gradually move away from or closer to the housing. The structure of the detection mechanism is simplified, and the assembly of the developing cartridge accordingly becomes simple.

Description

Developer Box Technical Field

The invention relates to the field of electronic photographic imaging, and in particular to a developing box detachably mounted on an electronic photographic imaging device.

Background technique

The developer cartridge is a consumable part widely used in imaging devices such as laser printers/copiers. When the developer in the developer cartridge is used up, the imaging device will remind the user to replace it with a new developer cartridge.

There is currently a type of developing box that is respectively provided with a driving force receiving member for receiving the driving force and a detection mechanism for interacting with a lever provided in an imaging device at the two longitudinal ends thereof. The imaging device obtains information such as the service life and model of the developing box by detecting parameters such as the number of interactions between the detection mechanism and the lever, the duration of each action, the time interval between two actions, etc., thereby ensuring that the user is correctly reminded.

For example, the detection mechanism disclosed in Chinese invention patent CN216792683U and the activation assembly disclosed in Chinese invention patent application CN111240168A both transmit the driving force from the side where the driving force receiving member is located to the side where the detection mechanism is located through a transmission member such as a rotating shaft of a stirring member, and then force a detection member that can rotate around an axis to rotate through components such as a lever and a rack. While the detection member rotates, the detection member interacts with a lever in an imaging device; in addition, the detection mechanism or activation assembly also needs to be provided with an elastic member that abuts against the detection member, so that the detection member can be reset after interacting with the lever. The existing detection mechanism or activation assembly has the problem of complex structure and difficulty in assembly.

For example, in the detected component disclosed in the Chinese invention patent application CN116009371A, a guide member in the form of a spiral rod is installed at the end of a rotating member such as a stirring member, so that it rotates with the rotation of the rotating member, or the guide member receives the driving force transmitted by the transmission assembly by providing a gear part or a transmission block and other structures that cooperate with the transmission assembly, and rotates. During the detection of the detected component, the guide member rotates, and the movable member in the detected component gradually moves away from the second side wall along the spiral groove on the outer circumferential surface of the guide member until the movable member stops moving after the detection is completed. The detected component needs to be additionally provided with a guide member installed in the developing box, and the detected component has many parts and components, and is relatively complicated to assemble.

Summary of the invention

In view of this, the present invention provides a developing box, which simplifies the structure of the developing box by simplifying the structure of the detecting mechanism, and makes the assembly of the developing box easier.

To achieve the above object, the present invention adopts the following technical solutions:

A developing box is detachably installed in an imaging device provided with a lever and a driving force output member, the developing box comprises a shell, a rotating member rotatably arranged in the shell, a driving force receiving member located at the end of the shell, a detection mechanism and an end cover, the driving force receiving member is used to receive the driving force from the driving force output member and drive the rotating member to rotate around a rotation axis extending in a first direction; the detection mechanism comprises a transmission member and a toggle member, the transmission member is used to receive the driving force of the driving force receiving member so that the toggle member interacts with the lever, and a protrusion is provided on a side of the end cover facing the shell, During the measurement process, the transmission member rotates around the protrusion and gradually moves away from or approaches the housing.

The toggle member is toggle-driven by the transmission member to rotate about another rotation axis, and the other rotation axis extends along a second direction intersecting the first direction.

The transmission member is provided with a transmission part, the toggle member is provided with a force receiving part and a toggle part, the transmission part is used to abut against the force receiving part to make the toggle member rotate around another rotation axis, and the toggle part is used to toggle the toggle rod.

The toggle member has a distal end portion away from the housing and a proximal end portion close to the housing, with the rotation axis of the toggle member as a boundary, the toggle portion is located in the distal end portion, and the mass of the distal end portion is greater than the mass of the proximal end portion.

The driving force receiving member and the detecting mechanism are located at the same longitudinal end of the housing.

The driving force receiving member and the detecting mechanism are respectively located at two longitudinal ends of the housing.

The rotating member is a stirring member for stirring the developer contained in the shell. The developing box also includes a first gear and a third gear arranged on the same side as the driving force receiving member. The first gear is connected to the driving force receiving member and is coaxially arranged. The third gear is located at one end of the stirring member, and the first gear and the third gear are meshed.

The transmission ratio of the third gear to the first gear is between 1.5 and 1.9.

The number of teeth of the first gear is 31, and the number of teeth of the third gear is 53.

The number of at least one of the transmitting parts and the force receiving parts is set to be a plurality of parts spaced apart and distributed in a first direction, and a spacing part is formed between the plurality of transmitting parts or the plurality of force receiving parts in the first direction. When the transmitting member rotates until the spacing part is opposite to the transmitting member or the force receiving member, the toggle member remains stationary.

When a plurality of force receiving portions are provided and spaced apart in the first direction, along a third direction intersecting both the first direction and the second direction, the force receiving portions close to the housing are higher than the force receiving portions far from the housing.

During the detection process of the detection mechanism, the transmission member rotates around a rotation axis extending in a first direction, and at the same time, the transmission member gradually moves away from or approaches the housing.

The protrusion has an internal thread or an external thread.

The transmission member is used for combining with the protruding portion, and the transmission member is provided with a clamping portion for clamping with the groove of the internal thread or the external thread.

The transmission member is provided with a first engaging portion and a second engaging portion arranged opposite to each other in the radial direction of the transmission member. Along the first direction, the position of the first engaging portion for engaging with the thread groove is farther away from the housing than the position of the second engaging portion for engaging with the thread groove.

The protrusion is a column with a smooth outer surface.

The developing box also includes a limiting device located at the end of the shell body, and the limiting device includes a guiding portion provided with a guiding surface, and the guiding surface is inclined relative to the first direction and is used to guide the transmission member.

During the detection process of the detection mechanism, the transmission member is guided by the guide surface; after the detection of the detection mechanism is completed, the transmission member stops receiving the driving force.

During the detection process, the transmission member gradually moves away from the housing.

In the first direction, the first end of the guide surface is closer to the rotation axis of the limiting member than the second end, and the guide surface is used to guide the transmission member to move from the first end to the second end.

The limiting member is rotatably arranged, and a rotation axis of the limiting member extends along a direction intersecting with the first direction.

The transmission member includes an acting part that interacts with the guide surface, and the acting part is used to make the transmission member gradually move away from the shell along the guide surface. When the transmission member stops rotating, the acting part is located on the guide surface or at the end of the guide surface.

The acting part is the transmitting part.

The acting portion is a protruding portion different from the transmitting portion.

At least a portion of the transmission member and at least a portion of the limiting device are exposed outwardly.

BRIEF DESCRIPTION OF THE DRAWINGS

1A and 1B are perspective views of a developing cartridge according to the present invention.

FIG. 2A is a perspective view showing some components of the developing box according to the present invention after being decomposed.

Figure 2B is a three-dimensional view of the driving end of the developing box involved in the present invention after the driving end cover is hidden.

FIG. 3A is a three-dimensional view of the detection mechanism according to the first embodiment of the present invention after being separated from the developing cartridge housing.

FIG. 3B is a three-dimensional diagram of a transmission member in the detection mechanism according to the first embodiment of the present invention.

FIG. 3C is a cross-sectional view of the transmission member along the rotation axis passing through the toggle member.

FIG. 4 is a three-dimensional view of the inner side of the detection end cover according to the first embodiment of the present invention.

5 is a three-dimensional view of the detection end cover and the shell of the developer box involved in the first embodiment of the present invention.

FIG. 6 is a three-dimensional diagram of the detection mechanism according to the second embodiment of the present invention after being separated from the developing cartridge housing.

FIG. 7 is a side view of the detection member in the detection mechanism according to the second embodiment of the present invention observed along the first direction.

8-10 are schematic diagrams of the detection process of the detection mechanism involved in the second embodiment of the present invention.

11 and 12 are side views of the transmission member in the detection mechanism according to the second embodiment of the present invention.

FIG. 13 is a three-dimensional diagram of the detection mechanism involved in the third embodiment of the present invention.

Figure 14 is an exploded view of some components in the developing box involved in Example 4 of the present invention.

FIG. 15 is a three-dimensional diagram of a transmission member in a detection mechanism according to a fourth embodiment of the present invention.

FIG. 16 is an exploded view of the limiting device involved in the fourth embodiment of the present invention.

FIG. 17 is a three-dimensional view of a limiting member in a limiting device according to a fourth embodiment of the present invention.

FIG. 18 is a three-dimensional diagram of the detection end cover involved in the fourth embodiment of the present invention.

Figure 19 is a three-dimensional view of the detection end cover and the shell of the developer box involved in the fourth embodiment of the invention.

20A-20E are schematic diagrams showing the positional relationship between the limiting device and the transmission member in the detection mechanism according to the fourth embodiment of the present invention.

Detailed ways

The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[Structure of the developer box]

Figures 1A and 1B are stereoscopic views of the developing box involved in the present invention; Figure 2A is a stereoscopic view of some components of the developing box involved in the present invention after being decomposed; Figure 2B is a stereoscopic view of the driving end of the developing box involved in the present invention after the driving end cover is hidden.

The developing box 100 includes a shell 1, a rotating member 2 rotatably arranged in the shell 1, and a driving force receiving member 3 and a detection mechanism 4 located at the end of the shell 1. The shell 1 is formed with a storage cavity 10 for accommodating the developer. The rotating member 2 is used to stir the developer or transport the developer outward. The driving force receiving member 3 is used to receive the driving force from the driving force output member of the imaging device to drive the rotating member 2 to rotate. At the same time, the detection mechanism 4 also receives the driving force of the driving force receiving member 3 and interacts with the lever in the imaging device.

To make the following description clearer, it is defined that the developing box has a length extending along a first direction/longitudinal direction, a width extending along a second direction/lateral direction, and a height extending along a third direction/vertical direction, and the first direction, the second direction and the third direction intersect.

The driving force receiving member 3 and the detecting mechanism 4 can be respectively located at the two longitudinal ends of the shell 1, or can be arranged at the same longitudinal end of the shell 1. However, no matter how the driving force receiving member 3 and the detecting mechanism 4 are distributed, the detecting mechanism 4 can be driven by the driving force from the driving force receiving member 3 to work. The following description focuses on the situation where the driving force receiving member 3 and the detecting mechanism 4 are respectively located at the two longitudinal ends of the shell 1. The side where the driving force receiving member 3 is located can be called the driving end, and the side where the detecting mechanism 4 is located can be called the detecting end.

The rotating member 2 extends along a first direction, and the rotating member 2 also rotates around a rotation axis extending along the first direction. As shown in FIG2A , the rotating member 2 can be a developing member 21 for carrying a developer, or can be a stirring member 22 located in the storage chamber 10. When the developing box 100 is working, the stirring member 22 is used to stir the developer in the storage chamber 10, on the one hand to prevent the developer from agglomerating, and on the other hand to supply the developer to the developing member 21. The developing member 21 rotates around a first rotation axis L1, and the stirring member 22 rotates around a second rotation axis L2. Both the first rotation axis L1 and the second rotation axis L2 extend along the first direction and remain parallel to each other.

Further, the developing box 100 further includes a first end cover/driving end cover 11 and a second end cover/detecting end cover 12 respectively located at two longitudinal ends of the shell 1, wherein the first end cover 11 is arranged on the same side as the driving force receiving member 3 so that the driving force receiving member 3 is exposed through the first end cover 11, and the second end cover 12 is arranged on the same side as the detecting mechanism 4 so that the detecting mechanism 4 is exposed through an opening 121 (as shown in FIG. 3A ) of the second end cover 12. In addition, the developing box 100 further includes a covering member 122 covering the opening 121, and the first direction end of the detecting mechanism 4 can be protected by being covered by at least a portion of the covering member 122. As shown in FIG. 2A , the shell 1 includes a first cover 1a and a second cover 1b that are mutually combined in a third direction, a storage chamber 10 is formed between the first cover 1a and the second cover 1b, and a stirring member 22 is rotatably mounted on the first cover 1a. In some embodiments, as shown in FIG. 2B , the developing box 100 further includes a driving force transmitting portion 3a, a second gear 32 and a third gear 33 arranged on the same side as the driving force receiving member 3, the second gear 32 is installed at one end of the developing member 21, and the third gear 33 is installed at one end of the stirring member 22, and the stirring member 22 provides the driving force required for the detection mechanism 4 to work, wherein the driving force transmitting portion 3a is connected to the driving force receiving member 3 for transmitting the driving force of the driving force receiving member 3, preferably, the driving force transmitting portion 3a is coaxially arranged with the driving force receiving member 3, and more preferably, the two are formed in one piece; the second gear 32 and The third gear 33 is combined with the driving force transmission part 3a at the same time, so that when the driving force receiving part 3 rotates, the developing part 21 and the stirring part 22 are driven to rotate at the same time. Specifically, the driving force transmission part 3a is set as a gear (first gear) 31, along the first direction, the first gear 31 is closer to the housing 1 than the driving force receiving part 3, and the second gear 32 and the third gear 33 are meshed with the first gear 31 at the same time.

Preferably, the transmission ratio of the third gear 33 to the first gear 31 is in the range of 1.5-1.9. For example, the number of teeth of the first gear 31 is set to 31, and the number of teeth of the third gear 33 is set to 53. In this way, the rotation speed of the stirring member 22 can be effectively controlled, and then the detection accuracy of the detection mechanism 4 driven by the stirring member 22 can be improved.

In some embodiments, the rotating member 2 can also be a supply member (not shown) rotatably mounted in the housing 1, which is in contact with the developing member 21 and is used to supply the developer to the developing member 21. At this time, the developing box 100 also includes a fifth gear 35 arranged on the same side as the driving force receiving member 3, and the fifth gear 35 is coaxially arranged with the supply member, and the second gear 32, the third gear 33, and the fifth gear 35 are simultaneously engaged with the first gear 31.

In some embodiments, when the supply member and the fifth gear 35 are provided, the driving force transmitting portion 3a further includes a fourth gear 34 coaxially provided with the first gear 31. Along the first direction, the fourth gear 34, the first gear 31 and the driving force receiving member 3 are sequentially arranged and gradually away from the housing 1. Preferably, the fourth gear 34, the first gear 31 and the driving force receiving member 3 are integrally formed. The first gear 31 is meshed with the third gear 33, and the second gear 32 and the fifth gear 35 are meshed with the fourth gear 34 at the same time. When the driving force receiving member 3 rotates, the second gear 32 and the fifth gear 35 are driven by the fourth gear 34, thereby driving the developing member 21 and the supply member to rotate, and the third gear 33 is driven by the first gear 31, thereby driving the stirring member 22 to rotate.

It can be understood that, in addition to transmitting the driving force to the outside through the above-mentioned method of meshing of gears, the driving force transmission part 3a can also transmit the driving force through friction between teeth and rubber parts, or friction between belts, etc.

In some embodiments, the developing box 100 also includes a chip rack 13 combined with the first end cover 11 or the second end cover 12. When the developing box 100 is installed at a predetermined position of the imaging device, the chip installed in the chip rack 13 is electrically contacted with the imaging device, and thus, a communication connection between the developing box 100 and the imaging device is established; alternatively, the chip can also be set at other positions of the developing box 100 according to design requirements.

When the third gear 33 is directly meshed with the first gear 31 to transmit the driving force, the structure on the side where the driving force receiving member 3 is located can be simplified, and the number of gears used to transmit the driving force can be reduced. In some embodiments, an idle gear (not shown) can also be provided between the third gear 33 and the first gear 31, and the driving force of the driving force receiving member 3 is sequentially transmitted to the stirring member 22 through the first gear 31, the idle gear and the third gear 33, and the stirring member 22 can also drive the detection mechanism 4 to work.

【testing facility】

[Example 1]

FIG3A is a perspective view of the detection mechanism of the first embodiment of the present invention after being separated from the developer cartridge housing; FIG3B is a perspective view of the toggle member in the detection mechanism of the first embodiment of the present invention; FIG3C is a cross-sectional view of the toggle member along the rotation axis of the toggle member; FIG4 is a perspective view of the inner side of the detection end cover of the first embodiment of the present invention; FIG5 is a perspective view of the detection end cover of the developer cartridge of the first embodiment of the present invention after being combined with the housing; Body diagram.

(Overall structure of the testing organization)

As shown in Figure 3A, the developing box 100 also includes a conductive bracket 14 arranged at the detection end, and the developing part 21 is electrically connected to the conductive bracket 14. At the same time, the detection mechanism 4 is also configured so that after the detection mechanism 4 completes the detection, the detection mechanism 4 and the conductive bracket 14 remain electrically connected. In this way, the power supplied by the imaging device can be supplied to the developing part 21 through the detection mechanism 4 and the conductive bracket 14.

The developing box 100 also includes a transmission shaft rotatably arranged on the shell 1, and the transmission shaft is used to combine with at least a portion of the detection mechanism 4 to transmit the driving force to the detection mechanism 4. The agitator 22 has an agitator shaft 221 that passes through the shell 1 in a first direction. As shown in the figure, the agitator shaft 221 is exposed at the detection end; in some embodiments, the transmission shaft can be the agitator shaft 221, and in other embodiments, the transmission shaft can also be another shaft different from the agitator shaft 221. Specifically, in this embodiment, the stirring member shaft 221 is used as the transmission shaft. Further, the detection mechanism 4 includes an intermediate member 41 combined with the stirring member shaft 221, a transmission member 42 combined with the intermediate member 41, and a toggle member 43 that can be toggled by the transmission member 42. The intermediate member 41 is installed at the other end of the stirring member 22. At this time, the stirring member shaft 221 does not contact the side wall of the housing 1. The stirring member shaft 221 is supported by the intermediate member 41. When the stirring member 22 rotates, the stirring member shaft 221 drives the intermediate member 41 and the transmission member 42 to rotate. Then, the toggle member 43 is toggled by the transmission member 42 to interact with the toggle lever in the imaging device. Therefore, the stirring member shaft 221 can be regarded as a force input member of the detection mechanism 4. In some embodiments, when another shaft different from the stirring member shaft 221 is used as the transmission shaft, the detection mechanism 4 is not provided with the intermediate member 41, and the transmission member 42 is combined with the other shaft to receive the driving force. At this time, the stirring member shaft 221 is supported by the side wall of the housing 1.

The intermediate piece 41 is configured to rotate with the rotation of the agitator shaft 221. Preferably, the intermediate piece 41 is fixedly connected to the agitator shaft 221. As shown in the figure, the intermediate piece 41 includes a first connecting portion 411 and a second connecting portion 412 extending along a first direction, the first connecting portion 411 is connected to the agitator shaft 221, and the second connecting portion 412 is connected to the transmission member 42; the transmission member 42 includes a third connecting portion 421 connected to the second connecting portion 412 and a transmission portion 422 that can rotate with the third connecting portion 421, and the transmission portion 422 is used to activate the activation member 43; in some embodiments, the intermediate piece 41 can also be omitted. In this case, the transmission member 42 will be directly combined with the agitator shaft 221. On the whole, the transmission member 42 is formed as a cam, the third connecting portion 421 is formed as a cylinder that can rotate around the second rotation axis L2, and the transmission portion 422 is formed by extending radially outward from the circumferential surface of the cylinder.

The toggle member 43 is configured to be rotatable around a third rotation axis L3 extending in the second direction. As shown in the figure, the toggle member 43 includes a toggle portion 432, a force receiving portion 431 connected to the toggle portion 432, and a power transmitting portion 433. The toggle member 43 is also provided with a rotating shaft 434 passing through the toggle portion 432. The force receiving portion 431 is used to be toggled by the transmitting portion 422 so that the toggle member 43 as a whole rotates around the third rotation axis L3 in the direction indicated by r. At the same time, the toggle portion 432 interacts with a toggle lever in the imaging device. At least a portion of the toggle member 43 is made of a conductive material. When the receiving portion 431 does not receive the toggle force of the transmitting portion 422, the power transmitting portion 433 abuts against the conductive bracket 14 to realize the electrical connection between the toggle member 43 and the conductive bracket 14, and the toggle member 432 abuts against the power output member in the imaging device, so that the power in the imaging device can be transmitted to the developing member 21 through the toggle member 43 and the conductive bracket 14 in sequence; when the toggle member 43 rotates around the third rotation axis L3 in the direction indicated by r, the power transmitting portion 433 is disengaged from the abutment with the conductive bracket 14 and the electrical connection is disconnected, and the toggle member 43 rotates around the third rotation axis L3 in the opposite direction indicated by r. When rotating, the power transmission part 433 abuts against the conductive bracket 14 again to achieve electrical connection.

The detection mechanism 4 is configured so that, during the detection process of the detection mechanism 4, the transmission member 42 gradually moves away from the agitator shaft 221/intermediate member 41/shell 1, and when the detection is completed, the transmission member 42 is disengaged from the agitator shaft 221/intermediate member 41, which means that the transmission of driving force between the agitator 22 and the detection mechanism 4 is interrupted, the detection mechanism 4 stops working, but the agitator 22 will continue to rotate.

(Detection mechanism's drive force transmission interruption)

As is known in the prior art, there are various structures (referred to as "separation structures") for the transmission member 42 and the stirring member shaft 221/intermediate member 41 to rotate from together to separate from each other. For example, an elastic member is provided between the stirring member shaft 221/intermediate member 41/shell 1 and the transmission member 42, and the elastic member can push the transmission member 42 in a direction away from the shell 1. After the detection mechanism 4 completes the detection, the elastic member forces the transmission member 42 to disengage from the stirring member shaft 221/intermediate member 41, or an elastic member is provided between the transmission member 42 and the second end cover 12, and the stirring member shaft 221 /The middle piece 41/shell 1 is provided with an accommodating portion for accommodating the transmission piece 42, the elastic piece forces the transmission piece 42 to be pushed toward the direction close to the shell 1, when the detection mechanism 4 completes the detection, the transmission piece 42 is forced to be pushed to the accommodating portion, or an elastic piece is provided between the transmission piece 42 and the second end cover 12, the stirring piece shaft 221/middle piece 41/shell 1 is provided with a notch or a protrusion, the transmission piece 42 is provided with a protrusion or a notch that can cooperate with the notch or the protrusion, when the detection mechanism 4 completes the detection, the transmission piece 42 forces the protrusion to enter the notch and disconnects the driving force transmission of the detection mechanism 4.

The above-mentioned prior art generally has the problem of a large number of parts and a complex structure. The present invention provides a separation structure with a simple structure as described below.

The transmission member 42 also includes a first engaging portion 423 and a second engaging portion 424 which are arranged relatively in the radial direction of the third connecting portion 421. A protrusion 123 is also provided on the side (inner side) of the second end cover 12 facing the shell 1. The outer surface of the protrusion 123 is provided with a thread. The first engaging portion 423 and the second engaging portion 424 are engaged in the groove of the thread. As the agitator shaft 221 rotates, the first engaging portion 423 and the second engaging portion 424 move in the groove of the thread along the extension direction of the thread, thereby realizing the separation of the transmission member 42 from the agitator shaft 221/intermediate member 41. The protrusion 123 is provided on the second end cover 12. Preferably, the protrusion 123 is formed integrally with the second end cover 12, and there is no need to provide a component for guiding the transmission member 42 to move along the first direction. In this way, the number of components can be reduced, the structure of the detection mechanism 4 can be simplified, and the difficulty of assembly can be reduced.

In practice, the groove of the thread extends in a direction away from the shell 1. Along the first direction, the positions of the first engaging portion 423 and the second engaging portion 424 in the groove are at different distances from the shell 1. In order to keep the rotation axis of the transmission member 42 coincident with the second rotation axis L2, as shown in Figures 3B and 3C, along the second rotation axis L2/first direction, the portion where one of the engaging portions is used to engage with the thread groove is farther away from the shell 1 than the portion where the other engaging portion is engaged with the thread groove. Specifically, the portion where the first engaging portion 423 is used to engage with the thread groove (upper engaging portion 4231) is farther away from the shell 1 than the portion where the second engaging portion 424 is used to engage with the thread groove (lower engaging portion 4241).

In some embodiments, the protrusion 123 can also be provided with an internal thread, and the transmission member 42 still cooperates with the internal thread through the first clamping portion 423, the second clamping portion 424 to achieve the purpose of gradually moving the transmission member 42 away from the shell 1; in some embodiments, the protrusion 123 provided with an internal thread or an external thread can also be interchanged with the transmission member 42 so that the transmission member 42 gradually moves away from or approaches the shell 1, thereby achieving the purpose of moving the transmission member 42 away from or close to the shell 1. The component shaft 221/intermediate component 41 is separated.

The above-mentioned separation mechanism does not require the provision of elastic parts. Through the cooperation between the locking part and the thread, as the transmission member 42 rotates, the position of the cooperation between the locking part and the thread also changes. In this way, the transmission member 42 can be close to or away from the shell 1 according to the extension direction of the thread, and finally the purpose of separating the transmission member 42 from the stirring member shaft 221/intermediate member 41 is achieved.

(Testing process)

Before the detection mechanism 4 starts working, along the first direction, the transmission part 422 is closer to the housing 1 or farther away from the housing 1 than the force receiving part 431, that is, the transmission part 422 and the force receiving part 431 are arranged in a staggered manner, or in other words, the transmission part 422 and the force receiving part 431 are not opposite to each other in the second direction/third direction. When the detection mechanism 4 is configured such that, after the detection is completed, the transmission member 42 is separated from the stirring member shaft 221/intermediate member 41 by moving away from the housing 1, before the detection mechanism 4 starts working, along the first direction, the transmission part 422 is closer to the housing 1 than the force receiving part 431.

When the driving force receiving member 3 starts to rotate, the driving force is transmitted to the transmission member 42 through the stirring member shaft 221, and the transmission part 422 starts to rotate with the transmission member 42. In the process of the transmission member 42 gradually rotating away from the shell 1, the transmission part 422 compresses the force receiving part 431, and the toggle member 43 rotates around the third rotation axis L3 in the direction indicated by r, the power transmission part 433 disengages from the conductive bracket 14, and the toggle member 432 toggles the lever in the imaging device; when the transmission part 422 no longer compresses the force receiving part 431, the toggle member 43 rotates around the third rotation axis L3 in the opposite direction indicated by r, and the power transmission part 433 abuts against the conductive bracket 14 again. At the same time, the transmission member 43 and the stirring member shaft 221/intermediate member 41 are separated from each other, and the detection mechanism 4 will no longer receive the driving force and remain stationary.

Preferably, the toggle member 43 is configured to have a distal end 43a away from the shell 1 and a proximal end 43b close to the shell 1, with the third rotation axis L3 as the boundary, and the toggle part 432 is located in the distal end 43a, and the mass of the distal end 43a is greater than the mass of the proximal end 43b, that is, the toggle member 43 is configured as a lever inclined relative to the third direction. At this time, the toggle member 43 can use its own gravity to achieve the power transmission part 433 to maintain abutment with the conductive bracket 14, and there is no need to install elastic parts or other auxiliary parts, thereby simplifying the structure of the detection mechanism 4.

Furthermore, the moment when the transmission part 422 presses the force receiving part 431 can be adjusted according to the detection requirements of the imaging device. For example, when the third gear 33 is configured to directly mesh with the first gear 31, the rotation speed of the agitator shaft 221 may be faster, thereby causing the rotation speed of the transmission part 42 to become faster, and the moment when the transmission part 422 presses the force receiving part 431 may be advanced; for this reason, the joint part of the transmission part 42 and the agitator shaft 221/intermediate part 41 can be configured to be closer to the shell 1, or further away from the force transmission part 431. At this time, a delay component will be formed between the transmission part 42 and the agitator shaft 221/intermediate part 41. Even if the rotation speed of the agitator shaft 221 is accelerated, the delay component can make the moment when the transmission part 422 presses the force receiving part 431 accurate; on the contrary, when the moment when the transmission part 422 presses the force receiving part 431 may be delayed, the connecting part of the transmission part 42 and the agitator shaft 221/intermediate part 41 can be set farther away from the shell 1, or closer to the force transmission part 431. At this time, an acceleration component will be formed between the transmission part 42 and the agitator shaft 221/intermediate part 41. Even if the rotation speed of the agitator shaft 221 slows down, the moment when the transmission part 422 presses the force receiving part 431 can be accurate.

[Example 2]

6 is a perspective view of the detection mechanism and the developing cartridge housing of the second embodiment of the present invention after being separated; FIG. 7 is a perspective view of the present invention viewed from the first direction A side view of the detection member in the detection mechanism involved in the second embodiment; Figures 8 to 10 are schematic diagrams of the detection process of the detection mechanism involved in the second embodiment of the present invention.

In this embodiment, the toggle member 43 is configured to interact with the toggle lever twice, so the transmission part 422 needs to press the force receiving part 431 twice. As shown in the figure, the structure of the transmission member 42 is not changed, and the toggle member 43 is provided with two force receiving parts, which are respectively called the first force receiving part 431 and the second force receiving part 435. Along the first direction, the two force receiving parts are arranged at intervals, and a spacing part 436 is formed between the two. That is to say, in the first direction, one of the two force receiving parts is closer to the rotation axis 434. In this embodiment, the second force receiving part 435 is closer to the rotation axis 434 as an example.

When the transmission member 42 moves along the first direction toward the direction away from the shell 1, in order to ensure that the toggle portion 432 and the toggle rod interact correctly, along the third direction, the first force receiving portion 431 is arranged higher than the second force receiving portion 435, that is, in the direction from the first cover 1a to the second cover 1b, the first force receiving portion 431 is higher than the second force receiving portion 435; it should be noted that the high and low mentioned here refer to the position where the force receiving portion contacts the transmission portion.

As shown in Figure 8, when the transmission member 42 begins to abut against the first force receiving portion 431, along the first direction, the distance between the first connecting portion 411 and the third connecting portion 421 is d1. As the transmission portion 422 presses the first force receiving portion 431, the toggle member 43 rotates around the third rotation axis L3 in the direction indicated by r in Figure 3A, and the toggle portion 432 is lifted up and touches the toggle rod. When the transmission portion 422 is out of contact with the first force receiving portion 431, the toggle member 43 rotates around the third rotation axis L3 in the direction opposite to the direction indicated by r, and the toggle portion 432 is out of contact with the toggle rod. This process is the first interaction between the toggle member 43 and the toggle rod.

As shown in Figure 9, as the transmission member 42 continues to move along the first direction toward the direction away from the shell 1, when the transmission part 422 rotates again to approach the toggle member 43, the transmission part 422 is opposite to the spacing part 436, and along the first direction, the distance between the first connection part 411 and the third connection part 421 is d2, d2＞d1, so that the toggle member 43 cannot be toggled by the transmission part 422 and remains stationary, that is, the transmission member 42 idles for one circle, and the transmission member 42 continues to rotate around the second rotation axis L2 and moves in the direction away from the shell 1.

As shown in Figure 10, when the transmission member 42 rotates again to approach the toggle member 43, along the first direction, the distance between the first connecting portion 411 and the third connecting portion 421 is d3, d3>d2, the transmission portion 422 presses the second force receiving portion 435, and the toggle member 43 rotates again around the third rotation axis L3 in the direction indicated by r in Figure 3A, and the toggle portion 432 is lifted up and touches the toggle rod. When the transmission portion 422 is out of contact with the second force receiving portion 435, the toggle member 43 rotates around the third rotation axis L3 in the opposite direction of the direction indicated by r, and the toggle portion 432 is out of contact with the toggle rod. This process is the second interaction between the toggle member 43 and the toggle rod.

Subsequently, the transmission member 42 continues to rotate around the second rotation axis L2 and continues to move away from the housing 1 until the transmission member 42 is disengaged from the agitator shaft 221/intermediate member 41. At this time, the detection mechanism 4 completes the detection and no longer receives the driving force and remains stationary. As described above, in the first direction, the second force receiving portion 435 is arranged closer to the third rotation axis L3 than the first force receiving portion 431. At the same time, in the third direction, the second force receiving portion 435 is lower than the first force receiving portion 431. In this way, the moment when the transmission portion 422 begins to contact the second force receiving portion 435 will be delayed, and the delayed detection function of the detection mechanism 4 is realized.

11 and 12 are side views of the transmission member in the detection mechanism involved in the second embodiment of the present invention; FIG. 13 is a stereoscopic view of the detection mechanism involved in the third embodiment of the present invention.

As shown in Figures 11 and 12, the position where the transmission part 422 starts to contact with the first force receiving part 431 is (point) M, and the position where the transmission part 422 breaks contact with the first force receiving part 431 is (point) N. Therefore, during the contact period between the transmission part 422 and the first force receiving part 431, the angle of rotation of the transmission part 422 is α; as shown in Figure 12, the position where the transmission part 422 starts to contact with the second force receiving part 435 is (point) P, and the position where the transmission part 422 breaks contact with the second force receiving part 435 is (point) Q. Therefore, during the contact period between the transmission part 422 and the second force receiving part 435, the angle of rotation of the transmission part 422 is β, α＞β, along the rotation direction s of the transmission member 42, point P is located downstream of point M, but because the second force receiving part 435 is closer to the third rotation axis L3 than the first force receiving part 431, according to the lever principle, the height of the toggle part 432 lifted upward can still be kept consistent.

Accordingly, the scheme may also have the following changes:

Variation 1: During the detection of the detection mechanism 4, when the time interval between the lever being toggled twice is longer than the time interval between the two interactions between the toggling member 43 and the lever, the dimension of the spacing portion 436 in the first direction may be set to be larger, for example, the second force receiving portion 435 is further moved away from the housing 1, or the second force receiving portion 435 is further moved closer to the rotation axis 434, so that the transmission portion 422 contacts the second force receiving portion 435 after two or more idle rotations;

On the contrary, when the time interval between the lever being pushed twice is shorter than the time interval between the two interactions between the pushing member 43 and the lever, the size of the spacing portion 436 in the first direction can be set to be smaller. At the same time, another transmission portion is set on the transmission member 42. After the first transmission portion 422 presses the first force receiving portion 431, the transmission member 42 continues to rotate less than one circle, and the other transmission portion 422 presses the second force receiving portion 435.

Variation 2, when the time that the lever needs to be moved by the moving part 432 is longer or shorter, it can be achieved by adjusting the contact time between the transmission part 422 and the force receiving part. For example, along the second direction, the force receiving part is arranged closer to the transmission member 42. In this way, the contact time between the transmission part 422 and the force receiving part will be prolonged, that is, the angle α/β in Figures 11 and 12 will become larger; or, the transmission part 422 is extended longer in the radial direction of the transmission member 42, which can also achieve the purpose of extending the contact time between the transmission part 422 and the force receiving part.

Variation 3: The number of transmission parts 422 can be set to multiple according to the number of times the toggle member 43 needs to toggle the lever. As shown in FIG13 , along the first direction, the transmission member 42 is provided with a first transmission part 422 and a second transmission part 425, and the two transmission parts are arranged at intervals to form a spacing part 426. As the transmission member 42 moves along the second rotation axis L2 in a direction away from the housing 1, the first transmission part 422 begins to abut against the force receiving part 431, and the toggle member 43 rotates around the third rotation axis L3, completing the first interaction between the toggle member 43 and the lever. Subsequently, the transmission part 422 is moved to the direction away from the housing 1 along the second rotation axis L2. The member 42 continues to rotate around the second rotation axis L2 and moves away from the shell 1, and the force receiving portion 431 enters the gap 426 between the two transmission portions. The transmission member 43 remains stationary, and the transmission member 42 idles for one circle. When the transmission member 42 continues to rotate until the second transmission portion 425 abuts against the force receiving portion 431, the toggle member 43 once again rotates around the third rotation axis L3, completing the second interaction between the toggle member 43 and the toggle rod. Finally, the transmission member 42 continues to move in the direction away from the shell 1 until the transmission member 42 is disengaged from the agitator shaft 221/intermediate member 41.

Similar to the above two variations, the distance between the first transmission part 422 and the second transmission part 425 in the first direction and ... The positions in all directions can be changed according to the detection requirements of the lever; further, the number of force receiving parts can also be changed accordingly. For example, the toggle member 43 is provided with a plurality of force receiving parts spaced apart in a first direction. At the same time, the transmission member 42 is provided with a plurality of transmission parts spaced apart in its circumferential direction. The plurality of transmission parts can be distributed on the same circle or on different circles in the circumferential direction of the transmission member 42. When the plurality of transmission parts are distributed on different circles of the transmission member 42, the plurality of transmission parts will form a staggered arrangement along the first direction.

As described above, the detection mechanism 4 transmits the force between the transmission member 42 and the toggle member 43 through the abutment of the transmission part 422 and the force receiving part 431. The number of at least one of the transmission part 422 and the force receiving part 431 is set to be multiple and spaced apart in the first direction. A spacing part 436/426 is formed between the multiple transmission parts 422 or the multiple force receiving parts 431 in the first direction. When the transmission member 42 rotates to the point where the spacing part 436/426 is opposite to the transmission part 422 or the force receiving part 431, the toggle member 43 does not receive the force and remains stationary.

In the above-mentioned embodiment, the transmission of the force from the transmission member 42 to the toggle member 43 is achieved by the transmission part pressing the force receiving part, that is, the transmission part contacts the force receiving part from above the force receiving part. However, it is achievable that the transmission part can also be configured to contact the force receiving part from below the force receiving part. At this time, the transmission of the force from the transmission member 42 to the toggle member 43 is achieved by the transmission part lifting the force receiving part. Therefore, based on the inventive concept of the present invention, the transmission method of the force between the transmission member 42 and the toggle member 43 can be any one of the above-mentioned compression methods or lifting methods. Specifically, the transmission of the force between the transmission member 42 and the toggle member 43 is achieved by the contact between the transmission part 422 and the force receiving part 431/435.

Compared with the existing detection mechanism, the detection mechanism 4 has a simpler structure, which is not only more convenient to manufacture, but also conducive to the rapid assembly of the developer box.

[Example 4]

Figure 14 is a disassembled view of some components in the developer box involved in the fourth embodiment of the present invention; Figure 15 is a stereoscopic view of the transmission member in the detection mechanism involved in the fourth embodiment of the present invention; Figure 16 is a disassembled view of the limiting device involved in the fourth embodiment of the present invention; Figure 17 is a stereoscopic view of the limiting member in the limiting device involved in the fourth embodiment of the present invention; Figure 18 is a stereoscopic view of the detection end cover involved in the fourth embodiment of the present invention; Figure 19 is a stereoscopic view of the detection end cover and the shell body of the developer box involved in the fourth embodiment of the present invention; Figures 20A-20E are schematic diagrams of the positional relationship between the limiting device and the transmission member in the detection mechanism involved in the fourth embodiment of the present invention.

The same components as those in the above embodiment are numbered the same. The difference between the present embodiment and the above embodiment is that a limiting device 5 is further provided in the present embodiment, as described below.

As shown in Figure 14, the developer box 100 also includes a limiting device 5 arranged at the longitudinal end of the shell 1, and the limiting device 5 is used to interact with at least a part of the detection mechanism 4. The driving force receiving member 3, the detection mechanism 4 and the limiting device 5 can be respectively arranged at the two ends of the shell 1, or at the same end of the shell 1. In this embodiment, the driving force receiving member 3 and the detection mechanism 4 are respectively arranged at the two ends of the shell 1. At the same time, the limiting device 5 and the detection mechanism 4 are arranged at the same end, that is, the limiting device 5 is arranged at the detection end.

As shown in FIG. 15 , in this embodiment, the transmission member 42 includes an action portion (not shown in the figure), and the action portion is used to interact with at least a portion of the limiting device 5. Specifically, the action portion is used to interact with the guide surface 522a described later, so that the transmission member 42 moves in the first direction away from the housing 1. Preferably, the action portion is the transmission portion 422, which can simplify the structure of the transmission member 42. Optionally, the action portion The part is a raised part different from the transmission part 422, and the raised part is connected to the third connection part 421/transmission part 422. Further, the two sides of the transmission part 422 have a first side 422a and a second side 422b, and the first side 422a and the second side 422b are used to interact with a part of the limiting device 5.

As shown in Figures 16 and 17, at least a portion of the limiting device 5 is used to interact with the transmission member 42. Further, the limiting device 5 includes a support member 51 and a limiting member 52. The limiting member 52 and the support member 51 are rotatably combined. The support member 51 is used to be combined with the shell 1 or the second end cover/detection end cover 12. Further, the support member 51 includes a support shaft 511, a support surface 512 and a mounting portion 513. The limiting member 52 is used to be rotatably combined with the support shaft 511, and the support surface 512 is used to be rotatably combined with the limiting member 52 is combined so that the limit member 52 is limited when rotating around the fourth rotation axis L4, the mounting portion 513 is used to install the limit device 5, further, the mounting portion 513 includes a support portion 513a and an annular portion 513b, the support portion 513a is used to abut against the shell body 1 or the second end cover/detection end cover 12, and the annular portion 513b is used to abut against the shell body 1 or the second end cover/detection end cover 12, so that the limit device 5 is installed, optionally, the support member 51 can also be installed by means of screw connection or clamping.

The limiting member 52 has a fourth rotation axis L4, and the fourth rotation axis L4 extends along a direction intersecting the first direction, that is, the fourth rotation axis L4 intersects with the second rotation axis L2. Preferably, the fourth rotation axis L4 and the second rotation axis L2 are perpendicular to each other. The limiting member 52 includes a limiting portion 521, a guiding portion 522 and a coupling portion 523. The limiting portion 521 and the guiding portion 522 are respectively connected to the coupling portion 523. The limiting portion 521 includes a first contact portion 521a and a second contact portion 521b. The first contact portion 521a is used to contact with the transmission member 42, and the second contact portion 521b is used to abut with the support surface 512 or the shell 1 or the second end cover/detection end cover 12. The guiding portion 522 includes a guiding surface 522a and a third contact portion 522b. The guide surface 522a is used to interact with the transfer member 42. Further, the guide surface 522a is an inclined surface. Specifically, the inclined surface is inclined relative to the first direction. In the first direction, the first end 522a1 of the guide surface 522a is closer to the fourth rotation axis L4 than the second end 522a2. The guide surface 522a is used to guide the transfer member 42 to move in the first direction. Specifically, the guide surface 522a is used to guide the transfer member 42 to move from the first end 522a1 to the second end 522a2. The third contact portion 522b is used to abut against the support surface 512 or the shell 1 or the second end cover/detection end cover 12. The coupling portion 523 is formed with a support hole 524 for rotatably cooperating with the support shaft 511. Further, the positions of the support shaft 511 and the support hole 524 are interchangeable. In some embodiments, the limiting device 5 only includes a limiting member 52. At this time, the supporting hole 524 of the limiting member 52 is rotatably combined with the shell 1 or the second end cover/detection end cover 12, and the second contact portion 521b of the limiting portion 521 and the third contact portion 522b of the guiding portion 522 can abut against the shell 1 or the second end cover/detection end cover 12 to limit the limiting member 52 from rotating around the fourth rotation axis L4.

As shown in Figures 18 and 19, the second end cover/detection end cover 12 includes an opening 121 and a protrusion 123 facing the side of the housing 1. The opening 121 is used to expose at least a portion of the detection mechanism 4. Specifically, the opening 121 is used to expose at least a portion of the toggle member 43 so that the toggle member 43 can toggle the lever. The protrusion 123 extends from the side facing the housing 1 along the first direction and is used to pass through the transmission member 42. Further, the protrusion 123 is a column with a smooth outer surface, which can make the second end cover/detection end cover 12 simple in structure, and can also reduce the rotation resistance of the transmission member 42, and facilitate the resetting of the transmission member 42. The developing box 100 also includes a covering member 122 (as shown in Figure 14) for covering the opening 121. The covering member 122 can be used to cover at least a portion of the toggle member 43 to prevent the toggle member 43 from being damaged by collision. At least a portion of the transmission member 42 and at least a portion of the limiting device 5 are exposed to the outside for easy resetting.

20A-20E show the positional relationship between the limit device 5 and the transmission member 42 during the detection process. As shown in FIG. 20A, at the beginning of the detection, Before, the transmission member 42 is located in the first position, along the circumferential direction of the transmission member 42, the limiting portion 521 is adjacent to the second side 422b of the transmission member 422, the guiding portion 522 is in contact with the supporting surface 512 or the shell 1 or the second end cover/detection end cover 12, the limiting portion 52 and the transmission member 42 limit each other, so that the guiding portion 522 is restricted from rotating, and the transmission member 42 can also be prevented from reversing. With the rotation of the stirring member shaft 221, the transmission member 42 rotates around the second rotation axis L2 and after the toggle member 43 is toggled for the first time, the transmission member 42 rotates to the second position (as shown in FIG. 20B ). At this time, along the circumferential direction of the transmission member 42, the limiting portion 521 is adjacent to the first side 422a of the transmission member 422. With the continuous rotation of the transmission member 42, the first side 422a of the transmission member 422 begins to contact the limiting portion 521. , and pushes the limiting member 52 to rotate around the fourth rotation axis L4, so that the second contact portion 521b of the limiting member 521 abuts against the supporting surface 512 or the shell 1 or the second end cover/detection end cover 12, and the limiting member 52 is restricted from rotating. At the same time, along the circumferential direction of the transmission member 42, the guide portion 522 is adjacent to the second side 422b of the transmission portion 422, and the transmission member 42 is located in the third position (as shown in FIG. 20C ). After the transmission member 42 continues to rotate and toggles the toggle member 43 for the second time, the transmission member 42 rotates to the fourth position (as shown in FIG. 20D ). It should be understood that, in a direction intersecting with the first direction, during the period when the transmission member 42 toggles the toggle member 43, the first position and the third position may overlap, and the second position and the fourth position may overlap, that is, in the first direction During the period when the transmission member 42 toggles the toggle member 43, the position of the transmission member 42 remains unchanged. In this way, only one toggle portion 432 needs to be provided on the toggle member 43, and the structure of the toggle member 43 becomes simple. For the transmission member 42, the position of the toggle member 43 does not change when the transmission member 42 toggles the toggle member 43, and the manufacturing precision requirement of the transmission member 42 can be reduced. In addition, the specific structural arrangement of the transmission member 42 and the limit member 52 can be carried out according to design requirements, as long as the transmission member 42 can interrupt the reception of the driving force through the guide portion 522. When the transmission member 42 rotates to the fourth position, along the circumferential direction of the transmission member 42, the guide portion 522 is adjacent to the first side 422a of the transmission portion 422, and the transmission portion 422 begins to abut against the guide surface 522a, and the transmission member 42 moves along the guide surface 522. a moves in the first direction away from the shell 1, that is, the transmission member 42 moves from the first end 522a1 to the second end 522a2, until the transmission member 42 is disengaged from the second connecting member 412 of the intermediate member 41. It should be understood that when the driving force is transmitted to the transmission member 42 through another shaft, the transmission member 42 gradually moves away from the shell 1 along the guide surface 522a until the transmission member 42 is disengaged from the other shaft, the transmission member 42 stops receiving the driving force, and the transmission member 42 no longer rotates. At this time, the transmission member 42 is located in the fifth position (as shown in Figure 20E), and the detection is completed. Further, when the transmission member 42 is disengaged from the second connecting member 412 or another shaft, the transmission part 422 can stay on the guide surface 522a, or it can just leave the guide surface 522a and be located at the end of the guide surface 522a.

When the developer in the developing box 100 is consumed and the developing box 100 is taken out, the transmission member 42 is manually pushed away from the shell 1, and then the limiting member 52 is manually pushed back to the original position around the fourth rotation axis L4 (the guide part 522 abuts against the support surface 512). Finally, the transmission member 42 is manually pushed to connect with the second connecting part 412 of the intermediate member 41 and return to the first position. At this time, the transmission member 42 and the limiting member 52 are both reset.

In some embodiments, the limiting device 5 also includes an elastic member, which interacts with the limiting member 52 and undergoes elastic deformation. Furthermore, the elastic member can be a compression spring, a tension spring, a torsion spring, etc. When the elastic member is a compression spring, the elastic member interacts with the limiting portion 521, the transmission member 42 pushes the limiting portion 521 to rotate and makes the limiting portion 521 abut against the support surface 512, and the elastic member is compressed. When the transmission member 42 is out of contact with the guide portion 522, the force of the elastic member can push the limiting portion 521 to rotate around the fourth rotation axis L4, so that the guide portion 522 abuts against the support surface 512, thereby resetting the limiting member 52; or, when the elastic member is a tension spring, the elastic member interacts with the guide portion 522, the transmission member 42 pushes the limiting portion 521 to rotate while driving the guide portion 522 to rotate, and at the same time the guide portion 522 stretches the elastic member. When the transmission member 42 is out of contact with the guide portion 522, the elastic member can be compressed. After the abutment, the force of the elastic member can pull the guiding portion 522 to rotate around the fourth rotation axis L4, so that the guiding portion 522 abuts against the supporting surface 512, thereby restoring the limiting member 52.

In other embodiments, on the basis of setting an elastic member on the limit device 5, a holding component is set on the second end cover/detection end cover 12, and after the detection is completed, the transmission member 42 is held by the holding component, and when it needs to be reset, the holding component releases the transmission member 42 to reset. Optionally, on the basis of setting an elastic member on the limit device 5, an automatic reset mechanism including a holding component can also be set, and the holding component is set on the second end cover/detection end cover 12, and after the detection is completed, the transmission member 42 is held by the holding component, and when it needs to be reset, the holding component releases the transmission member 42, and the transmission member 42 is automatically reset under the action of the automatic reset mechanism. Optionally, an automatic reset mechanism that links the reset of the limit member 52 and the transmission member 42 can also be set, so that the reset operation is more convenient.

In this embodiment, a limit piece is provided, and a guide portion with an inclined surface is provided on the limit piece, so that the transmission piece can move along the inclined surface in a direction away from the shell while rotating until the transmission piece is disengaged from the intermediate piece and the detection is completed. The transmission piece can be reset without removing the detection end cover, making the operation simple and quick.

Claims (25)

A developing cartridge is detachably mounted in an imaging device provided with a lever and a driving force output member, the developing cartridge comprising a housing, a rotating member rotatably disposed in the housing, and a driving force receiving member located at an end of the housing, a detection mechanism, and an end cover, the driving force receiving member being used to receive a driving force from the driving force output member and drive the rotating member to rotate around a rotation axis extending in a first direction; The detection mechanism includes a transmission member and a toggle member, wherein the transmission member is used to receive the driving force of the driving force receiving member so that the toggle member interacts with the toggle rod, and is characterized in that: A protrusion is provided on one side of the end cover facing the shell. During the detection process, the transmission member rotates around the protrusion and gradually moves away from or close to the shell. The developing box according to claim 1 is characterized in that the driving member is driven by the transmission member to rotate around another rotation axis, and the other rotation axis extends along a second direction intersecting with the first direction. The developing box according to claim 2 is characterized in that the transmission member is provided with a transmission part, the toggle member is provided with a force receiving part and a toggle part, the transmission part is used to abut against the force receiving part to make the toggle member rotate around another rotation axis, and the toggle part is used to toggle the toggle rod. The developing box according to claim 3 is characterized in that, with the rotation axis of the toggle member as the boundary, the toggle member has a distal end portion away from the shell and a proximal end portion close to the shell, the toggle portion is located in the distal end portion, and the mass of the distal end portion is greater than the mass of the proximal end portion. The developing box according to claim 1 is characterized in that the driving force receiving member and the detecting mechanism are located at the same longitudinal end of the shell. The developing box according to claim 1 is characterized in that the driving force receiving member and the detecting mechanism are respectively located at two longitudinal ends of the shell. According to the developing box according to claim 6, it is characterized in that the rotating member is a stirring member for stirring the developer contained in the shell, and the developing box also includes a first gear and a third gear arranged on the same side as the driving force receiving member, the first gear is connected to the driving force receiving member and is coaxially arranged, the third gear is located at one end of the stirring member, and the first gear and the third gear are meshed. The developer box according to claim 7 is characterized in that the transmission ratio of the third gear to the first gear is between 1.5-1.9. The developer box according to claim 8 is characterized in that the number of teeth of the first gear is 31, and the number of teeth of the third gear is 53. The developing box according to claim 3 is characterized in that the number of at least one of the transmission part and the force receiving part is set to be a plurality of parts spaced apart and distributed in the first direction, and a spacing part is formed between the plurality of transmission parts or the plurality of force receiving parts in the first direction, and when the transmission member rotates to the point where the spacing part is opposite to the transmission part or the force receiving part, the toggle member remains stationary. The developer box according to claim 10 is characterized in that when the force receiving parts are arranged in a plurality and spaced apart in the first direction, along a third direction intersecting both the first direction and the second direction, the force receiving parts close to the shell are higher than the force receiving parts far from the shell. The developing box according to any one of claims 1 to 11 is characterized in that, during the detection process of the detection mechanism, the transmission member rotates around a rotation axis extending in a first direction, and at the same time, the transmission member gradually moves away from or approaches the shell. The developer cartridge according to claim 12, wherein the protrusion has an internal thread or an external thread. The developer box according to claim 13 is characterized in that the transmission member is used to combine with the protrusion, and the transmission member is provided with a clamping portion for engaging with the groove of the internal thread or the external thread. The developing box according to claim 12 is characterized in that the transmission member is provided with a first engaging portion and a second engaging portion arranged opposite to each other in the radial direction of the transmission member, and along the first direction, the portion of the first engaging portion for engaging with the thread groove is larger than the portion of the second engaging portion for engaging with the thread groove. The portion is further away from the housing. The developer box according to claim 12 is characterized in that the protrusion is a column with a smooth outer surface. The developing box according to claim 16 is characterized in that the developing box also includes a limiting device located at the end of the shell, and the limiting device includes a guiding portion provided with a guiding surface, which is inclined relative to the first direction and is used to guide the transmission member. The developing box according to claim 17 is characterized in that during the detection process of the detection mechanism, the transmission member is guided by the guide surface; after the detection of the detection mechanism is completed, the transmission member stops receiving the driving force. The developing box according to claim 18 is characterized in that during the detection process, the transmission member gradually moves away from the shell. The developing box according to claim 19 is characterized in that, in the first direction, the first end of the guide surface is closer to the rotation axis of the limiting member than the second end, and the guide surface is used to guide the transfer member to move from the first end to the second end. The developing box according to claim 17 is characterized in that the limiting member is arranged in a rotatable manner, and the rotation axis of the limiting member extends in a direction intersecting with the first direction. The developing box according to any one of claims 17 to 21 is characterized in that the transmission member includes an acting portion that interacts with the guide surface, and the acting portion is used to make the transmission member gradually move away from the shell along the guide surface. When the transmission member stops rotating, the acting portion is located on the guide surface or at the end of the guide surface. The developing box according to claim 22 is characterized in that the action part is a transmission part. The developing box according to claim 22 is characterized in that the action portion is a protrusion different from the transmission portion. The developing box according to any one of claims 17 to 24 is characterized in that at least a portion of the transmission member and at least a portion of the limiting device are exposed outwardly.