CN108021011A - A kind of Delevoping cartridge, handle box and electronic imaging apparatus - Google Patents

Abstract

The invention relates to a developer cartridge, a process cartridge and an electronic imaging device. The process cartridge comprises: a developer cartridge and a drum cartridge which can be disassembled from each other. The first protruding part and the second protruding part, wherein, the two end faces of the drum cartridge are also provided with mounting parts for detachably installing the developing cartridge, and the two ends of the developing cartridge are respectively provided with There is an end cover, and an accommodating part for accommodating the first protruding part, the mounting part and the second protruding part is provided on the end cap; the first protruding part and the second protruding part The end face extends beyond the outer surface of the end cap. The processing box provided by the invention solves the technical problems of the overall length of the processing box and the complex and unstable structure of the drum box due to the need to reserve space for the protrusion and the slideway in the existing processing drum box.

Description

A developing box, a processing box and an electronic imaging device

technical field

The invention relates to a printing device, in particular to a developing box, a processing box and an electronic imaging device.

Background technique

An electronic imaging device is a device that forms an image on a recording material through electrophotographic imaging processing technology, such as: electrophotographic copying, laser printers, electrophotographic printers, fax machines, word processors, etc., where the electronic imaging device mainly includes Assemble the main frame and the process box of the components needed to form the image. There is a space for installing the process box inside the main frame. The process box is detachably installed in the electronic imaging device. When printing, the photosensitive element in the process box can be The image information is converted into an electronic latent image, and then the electronic latent image is converted into a solid toner image, and the toner image is transferred to the printing medium.

At present, the process cartridge usually includes two types of integral type and split type. The split type process cartridge includes a developing cartridge and a drum cartridge, wherein a developing roller carrying a developer is arranged in the developing cartridge, and a surface forming electrostatic latent roller is arranged in the drum cartridge. The photosensitive drum of the film, that is, the split process box, places the photosensitive element and the developing element in two boxes respectively, wherein, in order to facilitate the replacement of the developing box, the developing box is detachably installed on the drum box, specifically, in the drum box There are end covers on both sides, and there are protruding parts matching the printer on the outside of the end cover. There are slides matching the developing cartridge inside the end cover. The slideways on the cover are combined in place, and a forcing device needs to be provided behind the developer cartridge on the drum cartridge to ensure the fit interference between the developer cartridge and the drum cartridge. When the developer cartridge and the drum cartridge are assembled, they can be loaded into the printer as a whole Inside.

However, both sides of the end cover of the drum cartridge in the above-mentioned split type process cartridge need to have a larger space for setting the slideway and the outer protruding part. When installing with the drum cartridge, the developing cartridge needs to slide for a long distance along the slideway, so that the developing roller and the photosensitive drum can be in contact with each other. This makes the overall length of this type of split processing cartridge difficult to achieve miniaturization, and also reduces the cost for users. operability.

In addition, the existing split-type process cartridge is also provided with an elastic locking device for locking the developer cartridge on the drum cartridge to prevent the developer cartridge from falling from the drum cartridge, but the above-mentioned locking device and the pushing device are all arranged on the drum cartridge. The rear part of the box makes the structure of the drum box complicated, and the shell of the drum box is subjected to more elastic force, and the structure becomes unstable.

Contents of the invention

The invention provides a developing box, a processing box and an electronic imaging device, which solves the technical problems of the split-type processing box in the prior art that the volume is long and the structure of the drum box is complex and unstable.

The present invention provides a process cartridge, which includes a mutually detachable developing cartridge and a drum cartridge, wherein, both ends of the drum cartridge are provided with a first protruding portion and a second protruding portion protruding outward. , wherein, the two end faces of the drum cartridge are also provided with installation parts for detachably installing the developing cartridge;

Both ends of the developing cartridge are respectively provided with end caps, and the end caps are provided with accommodating parts for accommodating the first protruding part, the mounting part and the second protruding part;

End surfaces of the first protruding portion and the second protruding portion protrude from the outer surface of the end cap.

In a specific embodiment of the present invention, the end of the developer cartridge is provided with a telescopic assembly that expands and contracts toward the end cover, and the telescopic assembly is used to snap into the drum cartridge when the drum cartridge is installed with the developer cartridge. In the mounting part, the drum cartridge is detachably connected to the developing cartridge.

In a specific embodiment of the present invention, the telescopic assembly includes:

an elastic piece and a snap-fitting piece, wherein one end of the elastic piece is connected to the developing cartridge, and the other end is connected to the connecting end of the snap-fitting piece, and the free end of the snap-fitting piece faces the end cover of the developing cartridge, And the free end of the engaging member is used to snap into the installation portion when the drum cartridge and the developer cartridge are installed.

In a specific embodiment of the present invention, the telescopic assembly further includes: an operating member, the operating member is rotatably connected with the developing cartridge, and one end of the operating member is connected with the engaging member, and the other end is connected to the The developing cartridge protrudes outward, and the operating member is used to drive the engaging member to move away from the installation portion when rotating so that the engaging member slides out of the hollow structure of the installation portion.

In a specific embodiment of the present invention, a support is provided on the developing cartridge, and a groove is provided on the support for one end of the elastic member to extend into. One end is connected with the groove bottom of the groove.

In a specific embodiment of the present invention, an opening communicating with the installation part is opened on one side of the installation part, and the outer periphery of the end of the opening facing away from the installation part is provided with a hole for the guide sleeve of the bracket to slide into. A chute, the entrance of the chute is provided with a guide part that allows the engaging part to slide into the hollow structure of the installation part.

In a specific embodiment of the present invention, a retractable elastic block assembly is provided at the contact between the drum cartridge and the developer cartridge, and the elastic block assembly is used to move the engaging member from the mounting portion The drum cartridge is driven to separate from the developing cartridge when sliding out.

In a specific embodiment of the present invention, the elastic block assembly is arranged on the drum box, and a telescopic space for the elastic block assembly to expand and contract is provided on the drum box. the plane against which the projectile block assembly abuts; or,

The elastic block assembly is arranged on the developing box, and a telescopic space for the elastic block assembly to expand and contract is provided on the developing box, and a flat surface for the elastic block assembly to abut against is provided on the drum box.

In a specific embodiment of the present invention, the elastic block assembly includes: an elastic block and a compression spring, wherein one end of the compression spring is connected to the elastic block, and the other end of the compression spring is connected to the inner wall of the telescopic space connected.

The present invention also provides a process cartridge, including a developing cartridge and a drum cartridge that are detachable from each other, wherein

The end of the drum box is provided with a mounting portion;

The end of the developing cartridge is provided with an end cover and a telescopic assembly that expands and contracts toward the end cover;

The telescopic assembly is used for snapping into the installation part when the drum box and the developer box are installed, so that the drum box and the developer box are detachably connected;

An accommodating portion for accommodating the mounting portion is provided on the end cover.

In a specific embodiment of the present invention, the end face of the drum box is also provided with a first protruding portion and a second protruding portion protruding outward, and the end faces of the first protruding portion and the second protruding portion extend out the outer surface of the end cap.

The present invention also provides a developer cartridge, which is detachably connected to the drum cartridge, wherein, the end of the developer cartridge is provided with an end cover and a telescopic assembly that expands and contracts toward the end cover;

The end of the drum box is provided with a mounting portion;

The telescopic assembly is used for snapping into the mounting portion when the drum cartridge is installed with the developer cartridge, so that the drum cartridge and the developer cartridge are detachably connected; and

The end cover overlaps at least a part of the mounting portion in a mounting direction of the developing cartridge and the drum cartridge.

In a specific embodiment of the present invention, the telescopic assembly includes an elastic member and a locking member, wherein one end of the elastic member is connected to the developing cartridge, and the other end is connected to the connecting end of the engaging member, and the engaging member The free end of the piece is facing the end cover of the developing cartridge, and the free end of the engaging piece is used to snap into the installation part during the installation process of the drum cartridge and the developing cartridge.

In a specific embodiment of the present invention, the telescopic assembly further includes: an operating member, the operating member is rotatably connected with the developing cartridge, and one end of the operating member is connected with the engaging member, and the other end is connected to the The developing cartridge protrudes outward, and the operating part is used to drive the engaging part away from the installation part when rotating so that the engaging part slides out from the installation part.

The present invention also provides a developer cartridge, which is detachably connected to the drum cartridge, wherein, the end of the developer cartridge is provided with an end cover and a telescopic assembly that expands and contracts toward the end cover;

The end of the drum box is provided with a mounting portion;

The telescopic assembly is used for snapping into the mounting portion when the drum cartridge is installed with the developer cartridge, so that the drum cartridge and the developer cartridge are detachably connected;

An accommodating portion for accommodating the mounting portion is provided on the end cover.

The present invention also provides an electronic imaging device, comprising at least any one of the aforementioned process cartridges.

In the process cartridge provided by the present invention, mounting parts detachably connected with the developing cartridge are provided on both ends of the drum cartridge, and end covers are respectively provided at both ends of the developing cartridge, and the end covers are provided with Accommodate the accommodating portion of the first protrusion, the mounting portion and the second protrusion; like this, when the drum cartridge is connected with the developing cartridge, the first protrusion on the drum cartridge, the mounting portion and the The second protruding part is accommodated in the accommodating part, and during the installation process of the drum cartridge and the developing cartridge, the installing part is detachably connected with the developing cartridge, so that the drum cartridge and the developing cartridge can be assembled. On the cartridge, the accurate and fast installation of the drum cartridge and the developing cartridge is realized under the guiding action of the accommodating part to the first protruding part and the second protruding part, thereby avoiding that the developing cartridge needs to slide for a long distance along the slideway The problem of making the developing roller contact with the photosensitive drum in place makes the structure of the process box more compact and realizes the miniaturization of the product. The space of the head and the slideway causes the technical problem that the overall length of the processing box is long.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

Figure 1 is a schematic structural view of a process cartridge provided by Embodiment 1 of the present invention;

Fig. 2 is a schematic diagram of a disassembled structure in the process cartridge provided by Embodiment 1 of the present invention;

Fig. 3 is a disassembled schematic view of the telescopic assembly on the developing cartridge in the process cartridge provided by Embodiment 1 of the present invention;

Fig. 4 is a schematic diagram of assembly of the telescopic assembly on the developing cartridge in the process cartridge provided by Embodiment 1 of the present invention;

Fig. 5 is a schematic structural view of the operating member in the telescopic assembly in the process cartridge provided by Embodiment 1 of the present invention;

Fig. 6 is a schematic structural view of the engaging part of the telescopic assembly in the process cartridge provided by Embodiment 1 of the present invention;

Fig. 7 is a schematic structural diagram of the compressed telescopic assembly on the developing cartridge in the process cartridge provided by Embodiment 1 of the present invention;

Fig. 8 is a schematic diagram of the force direction of the operating member when the process cartridge is opened according to Embodiment 1 of the present invention;

Fig. 9 is a schematic diagram of the upper surface structure of the drum cartridge in the process cartridge provided by Embodiment 1 of the present invention;

Figure 10 is a schematic diagram of the structure of the lower surface of the drum cartridge in the process cartridge provided by Embodiment 1 of the present invention;

FIG. 11 is a schematic diagram of an enlarged structure at the dotted box in FIG. 10 .

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Embodiment one

Fig. 1 is a schematic structural view of the process cartridge provided by Embodiment 1 of the present invention, Fig. 2 is a schematic diagram of the disassembled structure of the process cartridge provided by Embodiment 1 of the present invention, and Fig. 3 is a developing cartridge in the process cartridge provided by Embodiment 1 of the present invention Schematic diagram of disassembly of the upper telescopic assembly, Figure 4 is a schematic diagram of assembly of the telescopic assembly on the developing cartridge in the process cartridge provided by Embodiment 1 of the present invention, and Figure 5 is the structure of the operating member in the telescopic assembly of the process cartridge provided by Embodiment 1 of the present invention Schematic diagram, Fig. 6 is a schematic structural diagram of the engaging member in the telescopic assembly in the process cartridge provided by Embodiment 1 of the present invention, and Fig. 7 is a schematic structural diagram of the compressed telescopic assembly on the developing cartridge in the process cartridge provided by Embodiment 1 of the present invention, Fig. 8 is a schematic diagram of the force direction of the operating member when the process cartridge is opened according to Embodiment 1 of the present invention. FIG. 9 is a schematic diagram of the upper surface structure of the drum cartridge in the process cartridge according to Embodiment 1 of the present invention. FIG. 10 is a schematic diagram of the drum cartridge in Embodiment 1 of the present invention. Provided is a schematic structural view of the lower surface of the drum cartridge in the process cartridge, and FIG. 11 is an enlarged schematic structural view of the dotted line box in FIG. 10 .

In this embodiment, as shown in Figures 1-11, the process cartridge provided by this embodiment is a split type process, and the process cartridge includes a developing cartridge 20 and a drum cartridge 10 that can be disassembled and assembled each other, that is, between the drum cartridge 10 and the developing cartridge 20. are detachably connected. Wherein, the developing cartridge 20 includes a developing chamber containing the developer, and the drum cartridge 10 includes a drum chamber containing waste developer, wherein, the developing cartridge 20 and the drum cartridge 10 are also provided with rotating elements, for example, the developing cartridge located in the developing cartridge 20 The roller 28 and the photosensitive drum 16 arranged in the drum cartridge 10, these rotating elements are connected to the driving elements in the printing device to realize the rotation, wherein, in the present embodiment, both ends of the drum cartridge 10 are provided with outward The raised first raised portion 11 and the second raised portion 13, wherein, the first raised portion 11 and the second raised portion 13 protrude from the end face of the process cartridge to the outside, and are arranged inside the printing device The guide rail cooperates to guide the process cartridge to be installed in the correct position inside the printing device. The photosensitive drum 16 is used as the benchmark for the assembly of the process cartridge and the printing device to ensure the image quality. The first raised portion 11 is preferably coaxially arranged with the photosensitive drum 16.

In this embodiment, in order to realize the miniaturization of the process cartridge, specifically, mounting parts 12 for detachably installing the developing cartridge 20 are also provided on both ends of the drum cartridge 10, and the two ends of the developing cartridge 20 are respectively provided with End cap 21, and the accommodation portion 22 that accommodates first protruding portion 11, mounting portion 12 and second protruding portion 13 is opened on end cap 21, when installing, the first protruding portion 11 on drum box 10, install 12 and the second protruding part 13 are aligned with the accommodating part 22 of the developing cartridge 20 and go down, during the downward process, the first protruding part 11, the mounting part 12 and the second protruding part 13 are accommodated in the accommodating part 22, and at the same time , in the downward process, the installation part 12 is detachably connected with the developer cartridge 20, and the drum cartridge 10 and the developer cartridge 20 are assembled.

Wherein, in this embodiment, since the drum cartridge 10 is provided with the first protruding portion 11 and the second protruding portion 13, the accommodating portion 22 is opened on the end cover 21 on the developing cartridge 20, and the first protruding portion 11 And the end face of the second raised portion 13 stretches out the outer surface of the end cap 21, that is, the first raised portion 11 and the second raised portion 13 protrude from the end of the process cartridge, the first raised portion 11 and the second raised portion The end surface of the protrusion 13 is farther away from the process cartridge than the outer surface of the end cover 21, and the first protrusion 11 and the second protrusion 13 protrude from the end surface of the end cover 21 to cooperate with the guide rail in the printing device. In this way, it is only necessary to set the receiving portion 22 on the end cover 21 of the developing cartridge 20 so that the first raised portion 11 and the second raised portion 13 can pass through the first raised portion 11 and the second raised portion 13 directly. Cooperating with the guide rail in the printing device, there is no need to set guide protrusions on the end cover 21 to cooperate with the guide rail in the printing device, which not only simplifies the product structure, but also improves the installation accuracy of the photosensitive drum 16 and the process box. Simultaneously, the accommodating portion 22 on the end cover 21 of the developing cartridge 20 is also used to guide the installation of the first raised portion 11 and the second raised portion 13, which facilitates the installation of the drum cartridge 10 and the developing cartridge 20, and during the installation process, the developing The cartridge 20 is detachably connected to the mounting portion on the end face of the drum cartridge 10, thereby avoiding the problem that the developing cartridge 20 needs to slide for a long distance along the slideway to make the developing roller 28 contact with the photosensitive drum 16 in place, so that the structure of the process cartridge More compact, to achieve product miniaturization.

The process cartridge provided in this embodiment is provided with mounting parts 12 on the two end faces of the drum cartridge 10; the two ends of the developing cartridge 20 are respectively provided with end caps 21, and the end caps 21 are provided with accommodating first protrusions. 11, the accommodating portion 22 of the mounting portion 12 and the second protruding portion 13; like this, when the drum cartridge 10 is connected with the developer cartridge 20, the first protruding portion 11 on the drum cartridge 10, the mounting portion 12 and the second protruding portion 13 Two protruding parts 13 are accommodated in the accommodating part 22, and during the installation process of the drum cartridge 10 and the developing cartridge 20, the mounting part 12 is detachably connected with the developing cartridge 20, so that the drum cartridge 10 and the developing cartridge 20 are assembled. The accommodating portion 22 is provided on the developing cartridge 20, and under the guidance of the accommodating portion 22 to the first protruding portion 11 and the second protruding portion 12, accurate and fast installation of the drum cartridge 10 and the developing cartridge 20 is realized, thus avoiding the The developing cartridge 20 needs to slide a long distance along the slideway of the drum cartridge 10 so that the developing roller 28 contacts the photosensitive drum 16 in place, which makes the structure of the processing cartridge more compact and realizes the miniaturization of the product. Therefore, this embodiment provides The processing box solves the technical problem that the overall length of the processing box is relatively long due to the need to reserve space for the protrusion and the slideway on the drum box in the existing processing.

Further, on the basis of the above-mentioned embodiments, in this embodiment, the two ends of the developer cartridge 20 are provided with a telescopic assembly 23 that expands and contracts toward the end cover 21, and the telescopic assembly 23 is used to connect the drum cartridge 10 and the developer cartridge 20 Snap into the installation part 12 during installation, so that the drum cartridge 10 is detachably connected with the developer cartridge 20. Specifically, during installation, the first protrusion 11, the installation part 12 and the second protrusion on the drum cartridge 10 13 is aligned with the accommodating portion 22 of the developing cartridge 20 and goes down. During the downward process, the first protruding portion 11, the mounting portion 12 and the second protruding portion 13 are accommodated in the accommodating portion 22. At the same time, during the descending process, the mounting portion The inner side of 12 applies force to the telescopic assembly 23 so that the telescopic assembly 23 is compressed along the direction away from the end cover 21, the drum box 10 continues to move downward until one end of the telescopic assembly 23 snaps into the installation part 12, the telescopic assembly 23 stretches out, and the drum box 10 and developing cartridge 20 realize assembly purpose.

Wherein, in the present embodiment, by arranging the telescopic assembly 23, the detachable connection can be realized between the drum cartridge 10 and the developer cartridge 20 by snapping the telescopic assembly 23 into the mounting portion 12, avoiding the drum cartridge in the existing process cartridge. The rear part is provided with an elastic locking device and a pushing device for locking the developer cartridge on the drum cartridge, which causes the problem that the drum cartridge structure is complex and unstable.

Wherein, in this embodiment, the telescopic assembly 23 specifically includes: an elastic member 233 and an engaging member 231, wherein one end of the elastic member 233 is connected to the developing cartridge 20, and the other end is connected to the connecting end 2313 of the engaging member 231, and The free end 2311 of the piece 231 faces the end cover 21 of the developer cartridge 20, and the free end 2311 of the engaging member 231 is used to snap into the installation part 12 during the installation process of the drum cartridge 10 and the developer cartridge 20, specifically, as shown in FIG. 6 As shown, the engaging member 231 includes a connection end 2313 and a free end 2311. In this embodiment, the engaging member 231 is specifically a pin, and the elastic member 233 is specifically a compression spring. During the downward movement of the mounting part 12, a horizontal thrust is applied to the engaging part 231, the engaging part 231 moves away from the end cover 21, the elastic part 233 is compressed, and when the opening of the hollow structure of the mounting part 12 is aligned and engaged When the free end 2311 of the member 231 is moved, the engaging member 231 is snapped into the mounting portion 12 under the force of the elastic force of the elastic member 233 , and at this time, the drum cartridge 10 and the developing cartridge 20 are connected.

Further, on the basis of the above embodiments, in this embodiment, as shown in Figures 3-5, the telescopic assembly 23 also includes: an operating member 232, which is connected to the developing cartridge 20 in rotation, specifically, as shown in Figure 7 As shown, a rotating shaft 2322 is set on the developing cartridge 20, and an installation hole connected to the rotating shaft 2322 is provided on the operating member 232, so that the operating member 232 rotates around the rotating shaft 2322 on the developing cartridge 20, and at the same time, one end of the operating member 232 is connected to the The engaging parts 231 are connected, and the other end extends out of the developing cartridge 20. The operating part 232 is used to drive the engaging part 231 away from the mounting part 12 when rotating so that the engaging part 231 slides out from the hollow structure of the mounting part 12. Specifically, when the engaging member 231 is snapped into the mounting portion 12, the drum cartridge 10 is connected to the developing cartridge 20, and when the drum cartridge 10 needs to be disassembled from the developing cartridge 20, at this moment, as shown in Fig. 7 and Fig. 8 , apply a force F to the operating member 232, one end of the operating member 232 rotates, the other end of the operating member 232 drives the engaging member 231 to move away from the end cover 21, and the elastic member 233 is compressed until the free end 2311 of the engaging member 231 moves from The mounting part 12 is removed, and at this time, there is no connection between the drum cartridge 10 and the developing cartridge 20, and the drum cartridge 10 can be disassembled from the developing cartridge 20.

Wherein, in this embodiment, during the movement of the engaging part 231, when the engaging part 231 is not aligned with the installation part 12 in the horizontal direction, the engaging part 231 cannot be engaged in the installation part 12. Therefore, in order to facilitate the The joint part 231 is snapped into the installation part 12. Specifically, as shown in FIG. , can move along the bracket guide sleeve 26 to prevent the engaging part 231 from shifting during the expansion and contraction process. The connecting end 2313 is provided with a boss 2312, and the boss 2312 is used to cooperate with the bracket guide sleeve 26 to limit the position of the engaging member 231. Limiting and guiding functions.

Wherein, in this embodiment, in order to facilitate the movement of the engaging member 231 driven by the operating member 232, specifically, as shown in FIG. The boss 2312 faces one side of the free end 2311 of the engaging member 231, so that when the operating member 232 applies a force F, the slot 2321 of the operating member 232 presses the boss 2312 of the engaging member 231 to shrink inwardly, and the engaging member 231 The free end 2311 of the drum cartridge is disengaged from the mounting portion 12 of the drum cartridge 101.

Wherein, in this embodiment, in order to facilitate the sliding of the free end 2311 of the engaging part 12 into the installation part 12, as shown in FIG. The spherical surface of the free end 2311 of the piece 231 is easier to slide into the installation portion 12 .

Among them, in this embodiment, in order to facilitate the connection between the elastic member 233 and the developing cartridge 20, specifically, as shown in Figure 3-4, the developing cartridge 20 is provided with a supporting member 27, and the supporting member 27 is provided with an elastic member. One end of 233 extends into the groove 271, and the end of the elastic member 233 away from the engaging member 231 is connected to the groove bottom of the groove 271, that is, in this embodiment, one end of the elastic member 233 is connected to the groove bottom of the groove 271 of the support member 27. Connected, so that when the elastic member 233 is compressed, a part of the elastic member 233 can be retracted into the groove 271, and the groove 271 can prevent the elastic member 233 from being dislocated due to bending deformation to the side during the expansion and contraction process.

Wherein, in this embodiment, the horizontal centerlines of the bracket guide sleeve 26 , the engaging member 231 , the elastic member 233 and the groove 271 are on the same straight line.

Further, on the basis of the above-mentioned embodiments, in this embodiment, when the drum cartridge 10 is descending, when the engaging part 231 is engaged and connected to the installation part 12, the specific implementation method is as follows: as shown in Figure 10-11 As shown, one side of the installation part 12 is provided with an opening 122 communicating with the installation part 12, specifically, an opening 122 is provided on the side of the installation part 12 facing the drum cartridge 10, wherein, in this embodiment, the installation part 12 is specifically hollow inside Therefore, the opening 122 communicates with the hollow structure of the mounting part 12, so that the engaging part 231 is inserted into the hollow structure of the mounting part 12 from the opening 122, wherein, in this embodiment, in order to facilitate the engaging part 231 to snap into the hollow structure of the installation part 12, specifically, a chute 121 for the bracket guide sleeve 26 to slide in is provided on the outer periphery of the opening 122 facing away from the installation part 12, and the entrance of the chute 121 is provided with a card The joint part 231 slides into the guide part 1201 of the hollow structure of the installation part 12. Specifically, during the downward movement of the drum cartridge 10, the guide part 1201 on the drum cartridge 10 first contacts the engaging part 231. During the downward movement of the guide part 1201, the guide part 1201 applies force to the engaging part 231, the force makes the guide part 1201 move to the inner side of the developing cartridge 20, the elastic part 233 is compressed, the drum cartridge 10 continues to descend, when the bracket guide sleeve 26 slides into the chute 121, the drum cartridge When the opening 122 on the drum 10 corresponds to the engaging part 231 , the engaging part 231 is snapped into the intermediate structure of the mounting part 12 under the elastic force of the elastic part 233 , and the drum cartridge 10 is connected to the developing cartridge 20 at this time.

Wherein, in this embodiment, as shown in FIG. 11, specifically, the guide portion 1201 is composed of an inclined surface 123 and an arc surface 124, and the inclined surface 123 is close to the opening 122, that is, the guide portion 1201 is inclined, which is convenient for the drum cartridge 10 to move During the downward process of installation, the engaging piece 231 moves in the horizontal direction. It should be noted that since the opening 122, which is the same as the hollow mechanism, is smaller than the size of the chute 121, there is a plane 125 between the opening 122 and the chute 121. In the embodiment, since the free end of the engaging member 231 is a spherical surface, the inclined surface 123 and the arc surface 124 of the guide portion 1201 are easier to drive the engaging member 231 to move when the spherical surface of the engaging member 231 is driven downward.

Further, on the basis of the above-mentioned embodiment, in this embodiment, as shown in Fig. 2-Fig. The assembly 14 is used for driving the drum cartridge 10 to separate from the developing cartridge 20 when the engaging member 231 slides out from the hollow structure of the mounting portion 12 . Specifically, when the drum cartridge 10 is installed on the developer cartridge 20, the engaging member 231 is snapped into the hollow structure of the mounting portion 12, and the elastic block assembly 14 is compressed, and when the engaging member 231 is removed from the hollow structure of the mounting portion 12 , the compressed spring block assembly 14 stretches out, and the upward elastic force drives the drum cartridge 10 to separate from the developing cartridge 20 during the stretching process of the spring block assembly 14, so that the drum cartridge 10 automatically bounces up from the developing cartridge 20, wherein, In this embodiment, by setting the spring block assembly 14 between the drum cartridge 10 and the developer cartridge 20, not only the effect of the drum cartridge 10 automatically bouncing on the developer cartridge 20 is realized, but at the same time, the drum cartridge 10 is After being assembled with the developer cartridge 20, an elastic expansion force is formed at the rear of the drum cartridge 10 and the developer cartridge 20, and the two are mutually rotated around the engaging part 231 as the axis, forcing the photosensitive drum 16 and the developer cartridge to press a certain pressure. Pressing together ensures that the carbon powder can be normally supplied from the developing cartridge 20 to the photosensitive drum 16 .

Wherein, in the present embodiment, as shown in Fig. 2-Fig. The cartridge 20 is provided with a flat surface that can be abutted by the elastic block assembly 14, so that when the drum cartridge 10 descends, the elastic block assembly 14 abuts on the plane of the developing cartridge 20, and the elastic block assembly 14 is compressed. After the piece 232, the spring block assembly 14 drives the drum box 10 to move upwards. Since the drum box 10 moves upwards, the mounting part 12 on the drum box 10 is misaligned with the engaging piece 231. At this time, the operator releases the operating piece 232, and the locking If the assembly part 231 cannot be snapped into the hollow structure of the installation part 12, the spring block assembly 14 will open the gap between the drum cartridge 10 and the developing cartridge 20, and the drum cartridge 10 can be detached from the developing cartridge 20.

Or, in the present embodiment, the elastic block assembly 14 can also be arranged on the developing cartridge 20, and the developing box 20 is provided with a flexible space for the elastic block assembly 14 to expand and contract, and the drum box 10 is provided with a space for the elastic block assembly 14 to abut against. plane.

Wherein, in this embodiment, the elastic block assembly 14 specifically includes: an elastic block and a compression spring, wherein one end of the compression spring is connected to the elastic block, and the other end of the compression spring is connected to the inner wall of the telescopic space, for example, when the elastic block assembly 14 When being arranged on the drum box 10, a telescopic space is opened on the drum box 10. At this moment, the compression spring is connected to the top of the telescopic space on the drum box 10, and the bullet block is exposed from the telescopic space when the compression spring is in an uncompressed state. After the compression spring is compressed, the elastic block retracts into the telescopic space. Correspondingly, when the elastic block assembly 14 is arranged on the developing cartridge 20, a telescopic space is opened on the developing cartridge 20. At this time, the compression spring and the telescopic space on the developing cartridge 20 connected to the bottom of the space.

Wherein, in the present embodiment, since the process cartridge has a certain length, when the bullet block assembly 14 is arranged on the drum cartridge 10 or the developing cartridge 20, specifically, it is distributed on the drum cartridge 10 or the developing cartridge at intervals along the length of the process cartridge. 20, and in order to drive the drum cartridge 10 to move upwards smoothly, in the present embodiment, the quantity of the spring block assemblies 14 is at least two, and at least two spring block assemblies 14 are arranged symmetrically on the drum cartridge 10 or the developing cartridge 20, as As shown in Fig. 2-Fig. 9, the quantity of the bullet assembly 14 is two, and the two bullet assemblies 14 are symmetrically arranged on the two ends of the drum box 10, so that the elastic force of the bullet assembly 14 received by the two ends of the drum box 10 is the same , so that both ends of the drum box 10 are subjected to the same elastic force and move upwards at the same time, avoiding that one end of the drum box 10 is under too much force and the other end is under too little force, which will cause the drum box 10 to tilt sideways during its upward movement.

Wherein, in the present embodiment, when the quantity of the bullet assembly 14 is at least two, wherein a part of the bullet assembly 14 in the at least two bullet assemblies 14 is arranged on the drum box 10, and another part of the bullet assembly 14 is arranged on the On the developer cartridge 20, that is, the drum cartridge 10 and the developer cartridge 20 are simultaneously provided with an elastic block assembly 14. It should be noted that the elastic block assembly 14 arranged on the drum cartridge 10 and the elastic block assembly 14 arranged on the developer cartridge 20 should located at both ends of the handle.

Further, on the basis of the above embodiments, in this embodiment, in order to facilitate the user to lift or lower the drum box 10, specifically, as shown in Figure 9, the drum box 10 is provided with a rotatable handle 15, and The drum box 10 is provided with a storage space that can accommodate the handle 15. When using it, the handle 15 is pulled up from the storage space to facilitate the picking up and installation of the drum box 10. When the handle 15 is not in use, store the handle 15 in the storage space. In the space, the handle 15 is in a prone state, so that the overall size of the drum box 10 can be reduced.

At the same time, in order to facilitate the lifting or installation of the developing cartridge 20, the developing cartridge 20 is provided with a handle 25.

Further, on the basis of the above-mentioned embodiments, in this embodiment, end caps 21 are respectively provided at both ends of the developing cartridge 20, that is, a left end cap and a right end cap, and the receiving portion 22 opened on each end cap 21 includes a first The accommodating portion 221 and the second accommodating portion 222, wherein the first protruding portion 11 is located in the first accommodating portion 221, and the second protruding portion 13 and the mounting portion 12 are located in the second accommodating portion 222. In this embodiment, by setting The first accommodating portion 221 and the second accommodating portion 222 can guide the first protruding portion 11, the second protruding portion 13 and the mounting portion 12 on the drum cartridge 10, thereby facilitating the drum cartridge 10 and the developing cartridge 20 to carry out Assembling, however, when the final assembly fits together, the receiving portion 22 does not come into contact with the raised portion at all.

Embodiment two

Wherein, in the existing process cartridge, the developing cartridge slides along the slideway on the drum cartridge for a long distance so that the developing roller 28 and the photosensitive drum 16 can be in place. 10 falls off, and an elastic locking device and a forcing device are often provided at the rear of the drum box 10, which makes the structure of the drum box complicated, and the drum box 10 is subject to more elastic forces, making the structure of the drum box 10 become unstable, for this reason, the present embodiment provides a kind of process box, specifically can refer to shown in Fig. The end portion is provided with a mounting portion 12; the end portion on the developing cartridge 20 is provided with an end cover 21 and a telescopic assembly 23 that expands and contracts toward the end cover 21, and the telescopic assembly 23 is used to snap into the mounting portion when the drum cartridge 10 and the developing cartridge 20 are installed. 12, so that the drum cartridge 10 and the developer cartridge 20 are detachably connected, and at the same time, the end cover 21 is provided with a receiving part 22 for receiving the mounting part 12.

In the installation process like this, the mounting portion 12 on the drum cartridge 10 is aligned with the accommodating portion 22 on the developer cartridge 20, and the accommodating portion 22 guides the drum cartridge 10. When the mounting portion 12 is accommodated in the accommodating portion 22, The telescopic assembly 23 is snapped into the installation part 12, so that the drum cartridge 10 and the developing cartridge 20 are assembled. Therefore, the guiding function of the accommodating part 22 prevents the developing cartridge 20 from needing to slide for a long distance along the slideway to adopt the developing roller. Contact with the photosensitive drum in place, so that the structure of the process cartridge can be made more compact, thereby realizing the miniaturization of the process cartridge. At the same time, after the telescopic assembly 23 snaps into the installation part 12, it prevents the developing cartridge 20 from falling off on the drum cartridge 10. Therefore, through the cooperation of the telescopic assembly 23 and the installation part 12, the problem of complex and unstable structure of the drum box 10 caused by installing the locking device and the pushing device at the rear of the drum box 10 is avoided. In summary, the present embodiment provides The process cartridge is miniaturized, and at the same time, only the mounting portion 12 is provided on the drum cartridge 10 so that the structure of the drum cartridge 10 is simple and stable.

Further, on the basis of the above embodiments, in this embodiment, the end surface of the drum box 10 is also provided with a first protruding portion 11 and a second protruding portion 13 protruding outward, wherein the first protruding portion 11 and the second raised portion 13 protrude outward from the end surface of the process cartridge, and the first raised portion 11 and the second raised portion 13 cooperate with the guide rails arranged inside the printing device to guide the process cartridge to be installed inside the printing device When installing, align the first protruding part 11, the mounting part 12 and the second protruding part 13 on the drum cartridge 10 with the accommodating part 22 of the developing cartridge 20 and go down. During the downward process, the first protruding part The part 11, the mounting part 12 and the second raised part 13 are accommodated in the accommodating part 22, and the end surfaces of the first raised part 11 and the second raised part 13 protrude from the outer surface of the end cover 21, only needing The end cover 21 of 20 is provided with a receiving part 22 so that the first protruding part 11 and the second protruding part 13 can pass through, and directly cooperate with the guide rail in the printing device through the first protruding part 11 and the second protruding part 13 Therefore, there is no need to set guide protrusions on the end cover 21 to cooperate with the guide rails in the printing device, which not only simplifies the product structure, but also improves the installation accuracy of the photosensitive drum 16 and the process cartridge.

Wherein, in this embodiment, the structures of the above-mentioned components may specifically be described in the above-mentioned Embodiment 1, and will not be repeated in this embodiment.

Embodiment Three

This embodiment provides a developer cartridge 20, as shown in Figure 2-8, the developer cartridge 20 is detachably connected with the drum cartridge 10, wherein the end of the developer cartridge 20 is provided with an end cover 21 and stretches towards the end cover 21 The telescopic assembly 23, the end of the drum cartridge 10 is provided with a mounting portion 12, the telescopic assembly 23 is used to snap into the mounting portion 12 when the drum cartridge 10 and the developing cartridge 20 are installed, so that the drum cartridge 10 and the developing cartridge 20 can be detached connected to the ground, so that the developing cartridge 20 and the drum cartridge 10 can be snapped into the installation part 12 through the telescopic assembly 23 to prevent the developing cartridge 20 from falling off from the drum cartridge 10, and it is avoided to be provided with an elastic locking device and force on the drum cartridge 10. Push the device and cause the problem that the drum cartridge 10 has a complex and unstable structure. Simultaneously, in the present embodiment, in order to facilitate the miniaturization of the process cartridge formed by the drum cartridge 10 and the developing cartridge 20, in the present embodiment, the developing cartridge 20 In the mounting direction of the drum cartridge 10, the end cover 21 overlaps with at least a part of the mounting portion 12, so that the overall length of the process cartridge will not be long, the structure of the process cartridge is more compact, and the miniaturization of the process cartridge is realized.

Further, on the basis of the above embodiments, in this embodiment, as shown in FIG. 3 , the telescopic assembly 23 includes an elastic member 233 and an engaging member 231, wherein one end of the elastic member 233 is connected with the developing cartridge 20, and the other end It is connected with the connecting end of the engaging piece 231, and the free end of the engaging piece 231 faces the end cover 21 of the developing cartridge 20, and the free end of the engaging piece 231 is used for snap-in installation when the drum cartridge 10 and the developing cartridge 20 are installed. Part 12, the specific connection relationship and working principle can refer to the description in the first embodiment above, and will not be repeated in this embodiment.

Further, on the basis of the above-mentioned embodiments, in this embodiment, as shown in FIG. 3 , the telescopic assembly 23 also includes: an operating member 232, which is connected to the developing cartridge 20 in rotation, and one end of the operating member 232 is connected to the card The connecting part 231 is connected to each other, and the other end extends out of the developing cartridge 20. The operating part 232 is used to drive the engaging part 231 away from the installation part 12 when rotating so that the engaging part 231 can slide out from the installation part 12. In this embodiment, In this example, the connection relationship and working principle of the operating element 232 can refer to the description in the first embodiment above, and will not be repeated in this embodiment.

Wherein, in this embodiment, the structures of other components on the developing cartridge 20 may specifically be described in Embodiment 1 above, and will not be repeated in this embodiment.

Embodiment Four

This embodiment provides a developer cartridge 20, as shown in Figure 2-8, the developer cartridge 20 is detachably connected with the drum cartridge 10, wherein the end of the developer cartridge 20 is provided with an end cover 21 and stretches towards the end cover 21 The telescopic assembly 23, the end of the drum cartridge 10 is provided with a mounting portion 12, the telescopic assembly 23 is used to snap into the mounting portion 12 when the drum cartridge 10 and the developing cartridge 20 are installed, so that the drum cartridge 10 and the developing cartridge 20 can be detached ground connection, the end cover 21 is provided with an accommodating portion 22 for accommodating the mounting portion 12, so that in the installation process, the mounting portion 12 on the drum cartridge 10 is aligned with the accommodating portion 22 on the developing cartridge 20, and the accommodating portion 22 is aligned with the drum cartridge. The installation part 12 of 10 plays a guiding role. When the installation part 12 is accommodated in the accommodating part 22, the telescopic assembly 23 snaps into the installation part 12, so that the drum cartridge 10 and the developing cartridge 20 are assembled. Therefore, through the accommodating part The guiding effect of 22 avoids the problem that the developer cartridge 20 needs to slide along the slideway for a long distance to make the developer roller contact with the photosensitive drum in place, which can make the structure of the process cartridge more compact, thereby realizing the miniaturization of the process cartridge, and at the same time After the telescopic assembly 23 snaps into the installation part 12, it prevents the developing cartridge 20 from falling off on the drum cartridge 10. Therefore, the cooperation between the telescopic assembly 23 and the installation part 12 prevents installation of a locking device and forced pushing at the rear of the drum cartridge 10. The structure of the drum cartridge 10 is complicated and unstable due to the device. In summary, the process cartridge provided by this embodiment realizes miniaturization, and at the same time, only the installation part 12 needs to be set on the drum cartridge 10 so that the structure of the drum cartridge 10 is simple and stable. .

Embodiment five

This embodiment also provides an electronic imaging device, comprising a casing and the process cartridge of any one of the above embodiments, wherein the electronic imaging device is provided with a driving component for receiving rotational power from a motor in the electronic imaging device, and The rotational power is transmitted to the process box to drive the rotating elements inside to rotate. For other components in the electronic imaging device, reference may be made to the prior art, which will not be repeated in this embodiment. The process box is detachably installed in the electronic forming device, wherein the process box can be installed in the electronic imaging device as a whole, or can be installed in the electronic imaging device in a separate form.

The electronic imaging device provided by this embodiment includes the above-mentioned process box, and the structure of the above-mentioned process box is compact, which can make the overall size of the electronic imaging device smaller, realize the miniaturization of the electronic imaging device, thereby improving the operator's confidence. The operability of the electronic imaging device, and because the structure of the drum cartridge 10 in the process cartridge is simple and stable, the structure of the electronic imaging device is simple and stable, thereby greatly improving the imaging quality.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.

Claims (16)

1. A processing box comprises a developing box and a drum box which can be mutually disassembled and assembled, wherein the end surfaces of the two ends of the drum box are respectively provided with a first bulge part and a second bulge part which bulge outwards;

end covers are respectively arranged at two ends of the developing box, and accommodating parts for accommodating the first protruding part, the mounting part and the second protruding part are formed in the end covers;

the end faces of the first protruding portion and the second protruding portion extend out of the outer surface of the end cover.

2. A process cartridge according to claim 1, wherein an end portion on said developing cartridge is provided with a telescopic member which is telescopic toward said end cap, said telescopic member being adapted to be snapped into said mounting portion when said drum cartridge is mounted with said developing cartridge, so that said drum cartridge is detachably attached with said developing cartridge.

3. A process cartridge according to claim 2, wherein said telescopic assembly comprises:

elastic component and fastener, wherein, the one end of elastic component links to each other with the development box, the other end with the link of fastener links to each other, the free end orientation of fastener the end cover of development box, just the free end of fastener is used for the drum box with go into in the development box installation card in the installation.

4. A process cartridge according to claim 3, wherein said telescopic assembly further comprises: the operating parts, the operating parts with the developing box rotates and links to each other, just the one end of operating parts with the fastener butt, the other end to the developing box stretches out outward, the operating parts is used for driving when rotating the fastener is kept away from the installation department so that the fastener is followed roll-off in the installation department.

5. A process cartridge according to claim 3, wherein a supporting member is provided on said developing cartridge, and a recess into which an end of said elastic member is inserted is formed in said supporting member, and an end of said elastic member remote from said engaging member abuts against a bottom of said recess.

6. A process cartridge according to claim 5, wherein an opening communicating with the inside of said mounting portion is formed in one side of said mounting portion, and a sliding groove into which said holder guide is slidable is provided in an outer periphery of an end of said opening facing away from said mounting portion, and a guide portion for allowing said engaging member to slide into said mounting portion is provided at an entrance of said sliding groove.

7. A process cartridge according to any one of claims 1-6, wherein a retractable bullet block assembly is provided at a contact between said drum cartridge and said developing cartridge, said bullet block assembly being for driving said drum cartridge to be separated from said developing cartridge when said engaging member is slid out from said mounting portion.

8. A process cartridge according to claim 7, wherein said block magazine is provided on said drum magazine, and wherein a telescopic space for said block magazine to be extended and retracted is provided on said drum magazine, and wherein a flat surface for said block magazine to abut is provided on said developing cartridge; or,

the elastic block assembly is arranged on the developing box, a telescopic space for the elastic block assembly to stretch is formed in the developing box, and a plane for the elastic block assembly to abut against is formed in the drum box.

9. A process cartridge according to claim 8, wherein said block spring assembly comprises: the elastic piece and the compression spring, wherein, compression spring's one end with the elastic piece links to each other, compression spring's the other end with the inner wall in flexible space links to each other.

10. A process cartridge comprising a developing cartridge and a drum cartridge which are detachable from each other,

the end part of the drum box is provided with a mounting part;

an end cover and a telescopic component which extends and retracts towards the end cover are arranged at the end part of the developing box;

the telescopic assembly is used for being clamped into the mounting part when the drum box and the developing box are mounted so as to enable the drum box and the developing box to be detachably connected;

the end cover is provided with an accommodating part for accommodating the mounting part.

11. A process cartridge according to claim 10, wherein an end surface of said drum cartridge is further provided with a first projecting portion and a second projecting portion projecting outwardly, the end surfaces of said first projecting portion and said second projecting portion projecting beyond an outer surface of said end cap.

12. A developing cartridge detachably attachable to a drum cartridge, characterized in that,

an end cover and a telescopic component which extends and retracts towards the end cover are arranged at the end part of the developing box;

the end part of the drum box is provided with a mounting part;

the telescopic assembly is used for being clamped into the mounting part when the drum box and the developing box are mounted so as to enable the drum box and the developing box to be detachably connected; and is

The end cap overlaps at least a part of the mounting portion in a mounting direction of the developing cartridge and the drum cartridge.

13. The developing cartridge according to claim 12, wherein the telescopic assembly includes an elastic member and a engaging member, wherein one end of the elastic member is connected to the developing cartridge, the other end of the elastic member is connected to the connecting end of the engaging member, the free end of the engaging member faces the end cap of the developing cartridge, and the free end of the engaging member is used for being clamped into the mounting portion during the mounting process of the developing cartridge.

14. A cartridge according to claim 13, wherein said telescopic assembly further comprises: the operating parts, the operating parts with the developing box rotates and links to each other, just the one end of operating parts with the fastener links to each other, the other end to the developing box stretches out outward, the operating parts is used for driving when rotating the fastener is kept away from the installation department so that the fastener is followed roll-off in the installation department.

15. A developing cartridge detachably attachable to a drum cartridge, characterized in that,

an end cover and a telescopic component which extends and retracts towards the end cover are arranged at the end part of the developing box;

the end part of the drum box is provided with a mounting part;

the telescopic assembly is used for being clamped into the mounting part when the drum box and the developing box are mounted, so that the drum box and the developing box can be detachably connected;

the end cover is provided with an accommodating part for accommodating the mounting part.

16. An electronic image forming apparatus comprising the process cartridge according to any one of claims 1 to 11.