TWI748220B - Connection method, connection structure, and cleaning device using the connection structure - Google Patents

Abstract

The present invention provides a connection method, a connection structure, and a cleaning device using the connection structure; the connection method includes: when a connecting shaft passes through an insertion hole on a connecting seat in the axial direction, a stopper is pressed to make a diameter After a stop on the connecting shaft passes through the stopper in the axial direction, the stopper makes a radial return displacement to limit the return displacement of the connecting shaft in the axial direction; thereby facilitating the exchange of the two components Disassembly and assembly.

Description

Connection method, connection structure, and cleaning device using the connection structure

The present invention relates to a connection method, a connection structure and a cleaning device using the connection structure, in particular to a connection method and connection structure for mounting a cleaning component on the cleaning device, and a cleaning device using the connection structure.

Press, the cleaning component of the conventional cleaning device can be moved to different positions on the work surface with the cleaning device for cleaning. After a period of use, the user needs to detach the cleaning component from the cleaning device to attach the cleaning component The cleaning assembly is replaced or cleaned with consumables, so the cleaning assembly is usually provided with a connection structure that is convenient for detachment and installation.

Chinese Patent Announcement No. CN201058006Y "The Connection Mechanism of the Brush Disk of the Floor Scrubber and the Drive Shaft" has disclosed a connection mechanism of the brush disk of the floor scrubber. The shaft is arranged on the shaft end of a transmission shaft, and the outer edge of the connecting shaft is evenly provided with three convex parts of the same shape in the circumferential direction, so that the appearance of the connecting shaft forms a triangle with rounded corners; the connection is sleeved on a brush plate The center position of the center hole is provided with a center hole, the shape of the center hole is the same as the shape of the connecting shaft, and forms a clearance fit; the inner wall of the center hole is provided with a rotating connection groove corresponding to each convex portion, and the rotating connection groove The inner wall of the central hole is formed by the protruding portion rotating in a clockwise or counterclockwise direction along with the connecting shaft to give way, and a blocking surface is provided at the end thereof, and the blocking surface cooperates with the side surface of the protruding portion to form a rotation limit Structure; When the brush plate is to be installed, the user can insert the center hole of the brush plate on the connecting shaft, and make the brush plate and the connecting shaft snap-connected by rotating; when it is to be detached When the brush is being swiped, the user can reversely rotate the brush to release the clamping connection between the brush and the connecting shaft, and detach the brush from the connecting shaft.

The conventional brush plate is connected with the connecting shaft by rotating, but when the brush plate is placed on the working surface for cleaning with the movement of the cleaning device, it will often shake and the clamping connection between the brush plate and the connecting shaft is gradually loosened. , The event of the brush plate falling off often occurs, which will affect the subsequent cleaning. The user also needs to install the brush plate on the cleaning device repeatedly; and the user needs to use both hands when disassembling the brush plate, and one hand restricts the connection shaft Rotate to keep it in position, put the brush plate into the connecting shaft with the other hand, and rotate the brush plate to rotate relative to the connecting shaft so that the two are snapped and connected; the above situations will cause inconvenience in use.

The purpose of the present invention is to provide a convenient connection method.

Another object of the present invention is to provide a structure for performing the connection method as described above.

Another object of the present invention is to provide a convenient connection structure.

Another object of the present invention is to provide a cleaning device using the connection structure described above.

The connection method according to the object of the present invention includes: when a connecting shaft passes through an insertion hole on a connecting seat in the axial direction, a stop member is pressed for radial displacement, and a stop portion is provided on the connecting shaft After passing through the stopper in the axial direction, the stopper makes a radial return displacement to limit the return displacement of the connecting shaft in the axial direction.

The connection structure according to another object of the present invention includes a structure for performing the connection method as described above.

A connection structure according to another object of the present invention includes: a connecting shaft and a connecting seat; the connecting shaft is provided with a stopper; the connecting seat is provided with a base, an engaging seat and a stop; the base is provided with There is a first through hole, the engaging seat is provided with an engaging hole, and the stopper is provided with a second through hole; the first through hole, the engaging hole and the second through hole are corresponding to form an embedded hole for the connecting shaft Passing through; the stop member is provided between the base and the engagement seat, and can be displaced relative to the base and the engagement seat in a first direction or a second direction on one side of the stopping portion.

A cleaning device according to still another object of the present invention includes: a body capable of moving on a working surface; a driving unit provided on the body and capable of driving the body to move on the working surface; and a cleaning unit provided on the working surface On the body, the working surface can be cleaned; the cleaning unit is provided with a cleaning component, a driver and a transmission shaft; the transmission shaft can transmit the power of the driver; wherein the cleaning component and the transmission shaft use the connection structure as described Connected; the connecting shaft of the connecting structure is arranged on the transmission shaft, and the connecting seat of the connecting structure is arranged on the cleaning assembly.

In the connection method, connection structure, and cleaning device using the connection structure of the embodiment of the present invention, the user only needs to make the connection shaft axially pass through the insertion hole of the connection seat, and by the radial displacement of the stopper, That is, the stopper can be selectively stopped by the stopper, and the return displacement of the connecting shaft in the axial direction can be selectively restricted, so that the connecting seat can be held on the connecting shaft or separated from the connecting shaft , It is quite simple and convenient to use.

Please refer to Figure 1. The embodiment of the present invention can be represented by the connection structure shown in the figure. It is provided with a connecting seat A and a connecting shaft B. The connecting seat A can be displaced upwards so that the connecting shaft B axially penetrates the connection. Connect the two in Block A.

Please refer to Figure 2. The connecting seat A is provided with: A base A1 is in the shape of a disc. The base A1 is recessed with a sliding groove A11 in the Y-axis direction. The notches A112 are respectively provided at both ends of the sliding groove A11, the two sliding surfaces A113 are arranged on both sides of the sliding groove A11 and are parallel to each other; a bottom surface A114 of the sliding groove A11 is convexly provided with a limiting portion A115; the bottom surface A first circular first through hole A116 in the Z-axis direction is provided on A114; An engagement seat A2, in the shape of a disc, and the outer diameter of the engagement seat A2 is slightly smaller than the outer diameter of the base A1, the engagement seat A2 is provided on the upper side of the base A1, and the middle of the engagement seat A2 is provided with a Z The meshing hole A21 in the axial direction is for the connecting shaft B (Figure 1) to pass through; the meshing seat A2 is provided with a tooth-shaped meshing portion A22 on the inner edge of the meshing hole A21, and the meshing portion A22 is provided with a plurality of meshing portions along the meshing The inner edge of the hole A21 is circumferentially arranged with tooth grooves A221 arranged at equal intervals in the Z-axis direction, and the upper end of each tooth groove A221 gradually opens upward to form an introduction part A222; the outer edge of the engaging seat A2 is recessed with a notch A23; A stop piece A3 is arranged between the base A1 and the engagement seat A2. The height and width of the stop piece A3 match the height and width of the chute A11; a Z is provided in the middle of the stop piece A3 A rectangular second through hole A31 in the axial direction allows the connecting shaft B (Figure 1) to pass through. The stop member A3 is provided with a stop portion A32 at one end of the second through hole A31, which is provided with an arc-shaped concave surface A321 is at the inner edge of the second through hole A31; the stop member A3 is provided with a stop groove A33 corresponding to the stop part A115 beside the second through hole A31; the stop member A3 corresponds to the supporting surface A111 A accommodating area A34 is recessed at the two corners of one end, which can respectively accommodate an elastic element A35; the other end of the stopper A3 corresponding to the notch A112 is provided with a pressing part A36, which is separated from the stopper A3 One end protrudes upward to extend into the notch A23, and the width of the pressing portion A36 is smaller than the width of the notch A23.

Please refer to Figure 3. The connecting shaft B is provided with: A connecting piece B1 is cylindrical. The connecting piece B1 is provided with a fixing part B11, a supporting part B12, a stop part B13 and a taper part B14 in sequence from top to bottom, and the middle of the top surface of the connecting part B1 A pivot hole B15 in the Z-axis direction is provided at one side, and a key groove B151 is provided on one side; the outer edge of the fixing portion B11 is provided with an external thread B111, and the outer diameter of the fixing portion B11 is smaller than that of the back portion B12 and the back portion B12 The outer diameter is smaller than the stop portion B13, a contact surface B121 is formed between the fixed portion B11 and the support portion B12, and a stop surface B131 is formed between the support portion B12 and the stop portion B13; the taper portion B14 is formed by The outer diameter of the stop portion B13 is constricted downward; A meshing member B2 is arranged on the fixed portion B11, the outer edge of the meshing member B2 is provided with a tooth-like meshing portion B21, which is provided with a plurality of Z-axes arranged circumferentially along the outer edge of the meshing member B2 at equal intervals The lower end of each tooth groove B211 is constricted downward to form a guide part B212 that fits the lead-in part A222 (Figure 2); the middle of the engaging part B2 is provided with a screw hole B22 in the Z-axis direction, The screw hole B22 is provided with an internal thread B221 that matches the external thread B111 of the fixing portion B11; A fastener B3 is provided with a screw hole B31 in the Z-axis direction at the middle thereof, and an internal thread B311 that matches the external thread B111 of the fixing portion B11 is provided in the screw hole B31.

Please refer to Figures 2, 4, and 5, the base A1 and the engaging seat A2 can be connected in a screwed manner, so that the stop member A3 is clamped between the base A1 and the engaging seat A2 in the sliding groove A11 The sliding groove A11 can be displaced in the radial direction relative to the base A1 and the engagement seat A2; the limiting portion A115 of the sliding groove A11 penetrates into the limiting groove A33 of the stop member A3 to Limit the displacement range of the stop member A3 in the sliding groove A1, and prevent the stop member A3 from being detached from the gap A112 of the sliding groove A11; the two ends of the elastic element A35 in the receiving area A34 respectively abut against On the abutment surface A111 and the stopper A3, when the stopper A3 is resisted by an external force and displaces toward the abutment surface A111 in a first direction, the elastic element A35 is compressed and accumulates an elastic restoring force. When the stopper A3 that originally resisted the displacement in the first direction is released by the external force, the stopper A3 is acted on by the elastic restoring force of the elastic element A35, and the stopper A3 is displaced toward the notch A112 in a second direction While the stop member A3 is displaced, the pressing portion A36 can be displaced in the groove A23 of the engagement seat A2; the engagement hole A21 of the engagement seat A2, the second through hole A31 of the stop member A3 and the base The first through hole A116 of the seat A1 forms an embedding hole A4 from top to bottom corresponding to the first through hole A116 of the seat A1, which provides an interval for the connecting shaft B to pass through from top to bottom; The engaging element B2 and the fastener B3 are fixed on the fixing portion B11 in a screw-fixing manner, and the engaging element B2 is clamped between the supporting surface B121 and the fastener B3.

Please refer to Figures 5 and 6, the connection structure of the embodiment of the present invention is used on a cleaning device C that can automatically move for cleaning operations as shown in the figure. The cleaning device C is provided with: A body C1, which can move on a working surface F; A driving unit C2 is arranged on the main body C1, and can drive the main body C1 to automatically move on the working surface F to perform forward, backward, rotating, etc. actions; A cleaning unit C3 is arranged on the main body C1 and can clean the working surface F when the main body C1 moves; the cleaning unit C3 is provided with a cleaning assembly C31 such as a brush plate, a driver C32 such as a motor, and a transmission drive power The transmission shaft C33; one side of the transmission shaft C33 is provided with a key C331; wherein, the connecting seat A is provided on the cleaning assembly C31; one end of the transmission shaft C33 can be inserted into the pivot hole B15 of the connecting shaft B to make The connecting shaft B is arranged on the transmission shaft C33, the driving power output by the driver C32 is transmitted to the connecting shaft B through the transmission shaft C33, and the connecting seat A drives the cleaning assembly C31 to rotate on the working surface F clean; A control unit C4 is arranged on the main body C1, which can perform various data calculations and perform various functional controls of the cleaning device C.

In the implementation of the embodiment of the present invention, when the user wants to install the cleaning assembly C31 on the cleaning device C, the user can take the connecting seat A with one hand, align the insertion hole A4 with the connecting shaft B, and Move the connecting seat A upwards toward the connecting shaft B, so that the connecting shaft B passes through the insertion hole A4 in the axial direction; As the connecting seat A moves upward, the connecting shaft B passes through the engaging hole A21, the second through hole A31, and the through hole A16 sequentially from top to bottom, so that the engaging piece B2 above the connecting shaft B, The engaging hole A21 of the connecting seat A can be penetrated axially to make the two concave and convex engage to restrict the movement in the horizontal direction. When the connecting shaft B rotates, the connecting shaft B can rotate the connecting seat A without relative to the Connecting seat A is idling; When the taper portion B14 below the connecting shaft B passes through the second through hole A31 of the stop member A3 in the axial direction, the taper portion B14 will touch the stop portion A32 at one end of the second through hole A31, causing The stop portion A32 slides upward along the tapered surface of the tapered portion B14, and at the same time abuts the stop member A3 to make a radial displacement in the first direction, compresses the elastic element A35 and accumulates the elastic restoring force of the elastic element A35; After the taper portion B14 below the connecting shaft B passes through the second through hole A31 of the stop member A3 in the axial direction, the stop portion A32 continues to slide upward along the outer edge of the stop portion B13; After the stop portion B13 of the connecting shaft B axially passes through the second through hole A31 of the stop member A3, the stop portion A32 reaches the position of the back portion B12 and because the outer diameter of the back portion B12 is smaller than the The stop portion B13, so the compression of the elastic element A35 can be stretched, so that the stop piece A3 is displaced in the second direction by the elastic restoring force of the elastic element A35 to move the stop portion A32 To the upper side of the blocking surface B131 of the blocking portion B13, and press against the supporting portion B12 with the concave surface A321 of the blocking portion A32; After the stop portion A32 is displaced to the upper side of the stop surface B131, the user can release the connecting seat A to stop the upward movement of the connecting seat A. At this time, the connecting seat A will move downward due to gravity , The stop A3 on the connecting seat A also moves downwards, as shown in Figure 7, because the stop B13 is located below the stop A3, when the stop A3 moves downwards, the stop The stop portion A32 of the piece A3 will contact the stop surface B131 of the stop portion B13 to restrict the movement in the vertical direction, thereby restricting the return displacement of the connecting shaft B in the axial direction. The stop portion B13 can support the stop The piece A3 restricts the connecting seat A from continuing to move downward, so that the connecting seat A is kept on the connecting shaft B; Conversely, when the user wants to detach the cleaning assembly C31 from the cleaning device C, as shown in FIG. 8, the user only needs to press the pressing portion A36 of the stopper A3 to make the stopper A3 make a diameter in the first direction To move the stop portion A32 away from the upper side of the stop surface B131, and release the support of the stop portion B13 to the stop piece A3, so that the connecting seat A moves downward due to gravity without any stop. Continue to move downward until it leaves the connecting axis B.

In the connection method, connection structure, and cleaning device using the connection structure of the embodiment of the present invention, the user only needs to make the connection shaft B axially pass through the insertion hole A4 of the connection seat A, and the stopper A3 Radial displacement can selectively cause the stop member A3 to be stopped by the stop portion B13, and selectively limit the return displacement of the connecting shaft B in the axial direction, so that the connecting seat A can be held on the The connecting shaft B or detaching from the connecting shaft B is quite simple and convenient in use.

However, the above are only the preferred embodiments of the present invention. Limiting the scope of implementation of the present invention, that is, all simple equivalent changes and modifications made in accordance with the scope of the patent application of the present invention and the content of the description of the invention are still within the scope of the patent of the present invention.

A: Connecting seat A1: Pedestal A11: Chute A111: Supporting surface A112: gap A113: Sliding surface A114: Bottom A115: Limiting part A116: First through hole A2: Meshing seat A21: Engaging hole A22: Meshing part A221: Cogging A222: Introduction Department A23: Missing slot A3: Stop piece A31: second through hole A32: Stop part A321: concave A33: Limit slot A34: Containment area A35: Elastic element A4: Embedded hole B: connecting shaft B1: Connector B11: Fixed part B111: External thread B12: Back part B121: Lean B13: Stop B131: Stop surface B14: Cone B15: Pivot hole B151: Keyway B2: Engaging parts B21: Meshing part B211: cogging B212: Guiding Department B22: screw hole B221: internal thread B3: Fastener B31: Screw hole B311: Internal thread C: Cleaning device C1: body C2: drive unit C3: Cleaning unit C31: Cleaning components C32: drive C33: drive shaft C331: Key C4: Control unit F: work surface

Fig. 1 is a perspective schematic diagram of the separation of the connecting seat and the connecting shaft of the connecting structure in the embodiment of the present invention. Fig. 2 is a three-dimensional exploded schematic view of the connecting seat in the embodiment of the present invention. Fig. 3 is a perspective exploded schematic view of the connecting shaft in the embodiment of the present invention. Fig. 4 is a schematic diagram of the A-A section of Fig. 1 in the embodiment of the present invention. Fig. 5 is a schematic diagram of the configuration of each unit of the cleaning device in the embodiment of the present invention. Fig. 6 is a schematic diagram of the cleaning unit of the cleaning device with the connection structure used in the embodiment of the present invention. Fig. 7 is a schematic diagram of the connecting seat being held on the connecting shaft in the embodiment of the present invention. Fig. 8 is a schematic diagram of the stop member leaving the upper side of the stop part in the embodiment of the present invention.

A: Connecting seat

B: connecting shaft

Claims (12)

A connection method including: When a connecting shaft passes through an insertion hole on a connecting seat in the axial direction, a stop piece is moved for radial displacement, and after a stop portion on the connecting shaft passes through the stop piece axially, the The stopper makes a radial return displacement, and limits the return displacement of the connecting shaft in the axial direction. Such as the connection method described in item 1 of the scope of patent application, wherein the connecting seat moves upward toward the connecting shaft so that the connecting shaft passes through the insertion hole of the connecting seat; the stopper is displaced radially to the stop portion On the upper side, the stopper is positioned on the lower side of the stopper, so that when the connecting seat moves downward, the stopper can contact the stopper to limit the downward movement of the connecting seat. For example, the connection method described in item 1 of the scope of patent application, wherein the connecting shaft is provided with a tapered portion, and when the connecting shaft passes through the insertion hole, the tapered portion can resist the stop member to move in a first direction and accumulate an elasticity The elastic restoring force of the element. Such as the connection method described in item 3 of the scope of patent application, wherein the stopper makes a radial return displacement in a second direction by the elastic restoring force of an elastic element. For example, the connection method described in item 1 of the scope of patent application, wherein the connecting seat is provided with an engaging seat and a base on the upper and lower sides of the stop member, the engaging seat is provided with an engaging hole, and the base is provided with a first The through hole and the stopper are provided with a second through hole; the engaging hole, the first through hole and the second through hole correspond to form the embedded hole. For example, the connection method described in item 5 of the scope of patent application, wherein the connecting shaft is provided with an engaging member, so that when the connecting shaft passes through the insertion hole in the axial direction, the engaging member and the engaging hole can engage in concave and convex to restrict the The connecting shaft does not rotate idle relative to the connecting seat. A connection structure includes: a structure for implementing the connection method described in any one of items 1 to 6 in the scope of the patent application. A connection structure including: One connecting shaft and one connecting seat; The connecting shaft is provided with a stop; The connecting seat is provided with a base, an engaging seat and a stop element; the base is provided with a first through hole, the engaging seat is provided with an engaging hole, the stop element is provided with a second through hole; the first through hole The hole, the engaging hole and the second through hole correspond to form an embedded hole for the connecting shaft to pass through; the stopper is provided between the base and the engaging seat, and can be positioned relative to the base and the engaging seat One side of the blocking portion is displaced toward a first direction or a second direction. For example, the connection structure described in item 8 of the scope of patent application, wherein the stop member is provided with a stop portion at one end of the second through hole; the upper side of the stop portion is provided with a stop surface, and the stop portion The stopping surfaces are in contact. For example, the connection structure described in item 8 of the scope of patent application, wherein the base is provided with a sliding groove, and the stop member can slide in the sliding groove; one end of the sliding groove is provided with a supporting surface, and the stop member and An elastic element is arranged between the supporting surfaces. For example, the connection structure described in item 8 of the scope of patent application, wherein the stop member is provided with a limiting slot, and the base is provided with a limiting portion that can penetrate into the limiting slot. A cleaning device, including: A body, which can be moved on a working surface; A driving unit, which is arranged on the main body and can drive the main body to move on the working surface; A cleaning unit arranged on the body to clean the working surface; the cleaning unit is provided with a cleaning assembly, a driver and a transmission shaft; the transmission shaft can transmit the power of the driver; Wherein, the cleaning assembly and the transmission shaft are connected using the connection structure as described in any one of items 7 to 11 in the scope of the patent application; the connection shaft of the connection structure is arranged on the transmission shaft, and the connection seat of the connection structure is provided On the cleaning component.

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