Developing cartridge

Abstract

The utility model relates to a developing box. The developing box is detachably arranged in imaging equipment provided with a counted piece; the developing box comprises a shell, an end cover, a reset part and a counting part, the counting part is used for being combined with a counted part, and the reset part is used for resetting the counting part; the end cover is mounted at the longitudinal tail end of the shell; the end cover comprises an end cover main body and a mounting block, the counting piece is mounted in a mounting cavity formed in the end cover main body, and the mounting block and the end cover main body are integrally formed; the reset piece is detachably mounted on the mounting block; a mounting hole allowing the resetting piece to penetrate through is formed in the mounting block, and the mounting hole communicates with the mounting cavity; when the developing box is automatically assembled, the resetting piece and the counting piece do not interfere with each other, so that the developing box is more convenient to assemble.

Description

[0001] This utility model claims priority to Chinese application No. 202322948592.7, filed on October 31, 2023, entitled "An End Cap and a Developing Box", the entire contents of which are cross-referenced in this application. Technical Field

[0002] This utility model relates to the field of electrophotographic imaging, and more particularly to a developing cartridge that can be detachably installed in an electrophotographic imaging device. Background Technology

[0003] The developing cartridge contains the developer required for development by the electrophotographic imaging equipment (hereinafter referred to as "imaging equipment"). The developing cartridge is equipped with a counting component, and the imaging equipment is equipped with a component to be counted. When the imaging equipment is working, it obtains the operating parameters of the developing cartridge by calculating the number of times the counting component touches the component and the duration of the contact.

[0004] In the prior art, the developing cartridge automatically resets by forcing the counting component back to its initial position through a push rod. The push rod is supported by the developing cartridge housing. To simplify the structure, the push rod is set on the end cap located at the longitudinal end of the developing cartridge housing. In automated production, the push rod extending into the end cap of the developing cartridge will hinder the installation of the counting gear. Utility Model Content

[0005] This invention provides a developing cartridge that integrates a reset device that can be directly plugged in, thereby solving the assembly interference problem described in the background art.

[0006] To achieve the above objectives, the present invention employs the following technical method:

[0007] A developing cartridge is detachably installed in an imaging device having a counting element. The developing cartridge includes a housing, an end cap, a reset element, and a counting element. The counting element is used to engage with the counting element, and the reset element is used to reset the counting element. The end cap is installed at the longitudinal end of the housing. The end cap includes an end cap body and a mounting block. The counting element is installed in a mounting cavity formed in the end cap body, and the mounting block is integrally formed with the end cap body. The reset element is detachably installed on the mounting block. The mounting block has a mounting hole for allowing the reset element to pass through, and the mounting hole communicates with the mounting cavity.

[0008] The mounting block is positioned above or below the mounting cavity; the mounting block has a stepped surface for engaging with the reset member to prevent it from dislodging; the reset member includes a push rod, an extension arm, a force-applying part, and a fixing part; the push rod is used to restrict the rotation of the counter; the extension arm is configured as a cantilever extending from the push rod to both sides, and the extension arm can move in the left and right directions; the force-applying part is used to receive external forces; the fixing part is located at the end of the extension arm and is used to engage with the stepped surface on the mounting block.

[0009] When the developing cartridge is assembled, a portion of the reset member extends into the mounting cavity; the developing cartridge includes an elastic member, which is installed between the mounting block and the reset member, and the reset member is movably mounted on the mounting block via the elastic member.

[0010] As described above, the counting component in the developing cartridge of this invention can be automatically reset, and the reset component is installed on the end cover of the developing cartridge. During the automated assembly of the developing cartridge, the reset component and the counting component will not interfere with each other, making the assembly of the developing cartridge more convenient. This end cover is not only suitable for automated production lines, but also for manual assembly production lines, which simplifies the assembly process of the developing cartridge, improves production efficiency, and reduces production costs. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of the developing cartridge involved in this utility model.

[0012] Figure 2 This is an exploded view of the end cap and reset device involved in this utility model.

[0013] Figure 3 This is a cross-sectional view of the end cap and reset device involved in this utility model after being cut by a plane parallel to the vertical direction.

[0014] Figure 4 This is a perspective view of the resetting component involved in this utility model. Detailed Implementation

[0015] The embodiments of this utility model are described in detail below with reference to the accompanying drawings. To make the description more accurate, the various directions involved in this utility model are first defined with the developing cartridge A in the installed position as the reference. The length direction of the developing cartridge A is defined as the longitudinal direction X; the width direction of the developing cartridge A is defined as the transverse direction Y; and the height direction of the developing cartridge A is defined as the vertical direction Z.

[0016] Figure 1 This is a schematic diagram of the overall structure of the developing cartridge involved in this utility model; Figure 2 This is an exploded view of the end cap and reset device involved in this utility model.

[0017] like Figure 1 and Figure 2As shown, the developing cartridge A of this utility model includes: a housing 2, a developing element 3, an end cap 4, a driving force receiving element 5, and a counting assembly 6; the housing 2 is used to contain developer, and the driving force receiving element 5 is used to receive driving force from the outside (e.g., an imaging device) and transmit the driving force to the developing element 3 and the counting assembly 6 to drive the developing element 3 to rotate around its axis; the end cap 4 is connected to the housing 2 and is disposed on the same side of the driving force receiving element 5 and the counting assembly 6; the developing element 3 supplies developer to an external photosensitive drum (not shown), and the driving force receiving element 5 and the counting assembly 6 can be located at the same longitudinal end of the housing 2 or at two separate longitudinal ends of the housing 2; at least a portion of the counting assembly 6 is exposed to the outside through the end cap 4, and the counting assembly 6 has an automatic reset function; the developing cartridge A also includes a conductive part 7, which is located on the opposite side of the driving force receiving element 5, for electrically connecting to an external power supply unit (not shown) to receive power and provide power to the developing element 3.

[0018] In the following text, the end where the conductive part 7 is located is defined as the conductive end, and the end where the driving force receiving member 4 is located is defined as the driving end. Furthermore, the direction from the driving end to the conductive end is defined as the left side of the developing cartridge A -X, and the direction from the conductive end to the driving end is defined as the right side of the developing cartridge A +X. The direction parallel to the mounting direction A of the developing cartridge is defined as the front side of the developing cartridge +Y, and the direction opposite to the mounting direction A is defined as the rear side of the developing cartridge -Y. In the height Z direction of the developing cartridge, the direction of gravity of the developing cartridge is defined as the bottom of the developing cartridge -Z, and the direction opposite to the -Z direction is defined as the top of the developing cartridge +Z.

[0019] Figure 3 This is a cross-sectional view of the end cap and reset device involved in this utility model after being cut by a plane parallel to the vertical direction.

[0020] like Figure 2 and 3 As shown, the end cap 4 of the developing cartridge A includes an end cap body and a mounting block 11 connected to the end cap body; a hollow mounting cavity 8 is formed inside the end cap body, which is used to accommodate the counting component 6; a reset device 9 is mounted on the end cap 4, and the reset device 9 is used to automatically reset the counting component 6 / counting element 61; the counting component 6 includes a rotatable counting element 61, which is installed in the mounting cavity 8 and is used to interact with the counted items outside the developing cartridge A (e.g., imaging equipment); the mounting block 11 is used to install the reset element, and a stepped surface 11a is provided on the mounting block 11, which is used to cooperate with the reset element 10 to prevent the reset element 10 from falling out; the mounting block 11 is disposed on the end cap 4 and is integrally formed with the end cap 4; the reset device 9 includes: a reset element 10 and an elastic element 12; the elastic element 12 is elastic, and the reset element 10 is movably mounted on the mounting block 11 through the elastic element 12; the reset device 9 is disposed below the mounting cavity; as shown Figure 3As shown, the reset device 9 is mounted on the end cover 4. The mounting block 11 is provided with a mounting hole 11b for allowing the reset member 10 to pass through. The mounting hole 11b is also used to guide the reset member 10 to move in the Z direction. The mounting block 11 is provided with a protruding support portion 11c for supporting the elastic member 12. The elastic member 12 is disposed between the end cover 4 and the reset member 10. Specifically, one end of the elastic member 12 abuts against the support portion 41, and the other end abuts against the reset member 10, so that the reset member 10 can extend and retract in the Z direction. In some embodiments, the mounting block 11 can also be disposed above the mounting cavity 8. Specifically, the mounting block can be disposed above the axis M that is parallel to the Y direction and passes through the center of the mounting cavity.

[0021] Figure 4 This is a perspective view of the resetting component involved in this utility model.

[0022] like Figure 4 As shown, the reset member 10 includes a push rod 101, an extension arm 102 connected to the push rod 101, a force-applying part 103 disposed at the end of the push rod 101, and a fixing part 104 disposed on the extension arm 102; the push rod 101 is used to abut against the counter 61, and when the counter 61 finishes counting, it prevents the counter 61 from continuing to rotate; the two extension arms 102 are symmetrically arranged about the push rod 101, and each extension arm 102 is provided with a fixing part 104; the extension arm 102 is configured as a cantilever extending a certain distance from the push rod 101 in the Y direction, and since one end of the extension arm 102 is suspended, the extension arm 102 can be in the Y direction The upward movement facilitates the installation of the reset member 10 onto the mounting block 11; the fixing part 104 is located at the end of the extension arm 102 and is used to install the reset rod 101 into the mounting hole 11b; in this embodiment, the fixing part 104 is configured as a buckle protruding from the top rod 101 on the extension arm 102; the force-applying part 103 is used to receive external force, thereby pushing the reset member 10 to move in the Z direction; when the force-applying part 103 does not receive external force, the reset member 10 moves downward under the force of gravity and the elastic force of the elastic member, causing the fixing part 104 to abut against the step surface 11a of the mounting block, restricting the reset member 10 from coming out.

[0023] Specifically, in automated production, when installing the reset component 10, the installation equipment aligns the reset component 10 with the mounting hole 11b on the developing cartridge housing 4 and applies an installation force in the +Z direction, causing the reset component 10 to enter the mounting hole 11b. At this time, the extension arm 102 is guided by the mounting hole 11b, and the fixing part 104 abuts against the inner wall of the mounting hole 11b, causing the extension arm 102 to compress towards the position close to the top rod 101, resulting in elastic deformation of the extension arm 102. When the extension arm 102 passes through the mounting hole 11b, the fixing part 104 no longer abuts against the mounting hole 11b, and the extension arm 102 generates a force to restore its elastic deformation, moving away from the top rod 101 in the Y direction, causing the extension arm 102 to abut against the mounting hole 11b. The fixing part 104 extends into the mounting cavity 8 and abuts against the step surface 11a of the mounting block in the Z direction, thus fixing the reset component 10 in the mounting hole 11b.

[0024] In the prior art, when assembling the developing cartridge A, the reset device 9 needs to be installed on the end cover 4 first. After the reset device 9 is installed, the push rod 101 in the reset device 9 naturally extends into the counter mounting cavity 8. At this time, the installation of the counter 61 will cause interference. When using automated production, the push rod 101 extending into the mounting cavity will hinder the installation of the counter 61.

[0025] The reset device 9 used in this utility model has a mounting block 11 on the end cover 4 for installing the reset component 10; the top rod 101 is connected to the mounting block 11 by means of buckle, etc.; this structure simplifies the automated assembly process of the reset device 9, so that the developing cartridge A can be assembled first and then the reset device 9 can be installed, avoiding interference between the reset component 10 and the counting component 6 during the installation process.

[0026] Because the existing mounting block 11 and reset component 10 are small in size, they are difficult to install. When the mounting block 11 and the end cover 4 are integrally formed, the structure of the reset device 9 is simplified, the assembly steps of the reset device 9 are reduced, and it is easier to automate production. At the same time, this structure is not only suitable for automated assembly lines, but also for manual assembly lines.

[0027] As described above, the reset device 9 is installed on the end cover 4 of the developing cartridge. During the automated assembly of the developing cartridge A, the reset component 10 and the counter component 61 will not interfere with each other, making the assembly of the developing cartridge A more convenient. This end cover is not only suitable for automated production lines, but also for manual assembly production lines, which simplifies the developing cartridge assembly process, improves production efficiency, and reduces production costs.

Claims

1. A developing cartridge, detachably installed in an imaging device containing counting components; the developing cartridge includes: The housing, end cap, reset element, and counter element are provided, wherein the counter element is used to engage with the counted element, the reset element is used to reset the counter element, and the end cap is installed at the longitudinal end of the housing. Its features are: The end cap includes an end cap body and a mounting block. The counter is installed in a mounting cavity formed in the end cap body. The mounting block is integrally formed with the end cap body. The reset member is detachably installed on the mounting block. The mounting block is provided with a mounting hole for allowing the reset component to pass through, and the mounting hole communicates with the mounting cavity.

2. The developing cartridge according to claim 1, characterized in that, The mounting block is positioned above or below the mounting cavity.

3. The developing cartridge according to claim 1, characterized in that, The mounting block is provided with a stepped surface; the stepped surface is used to cooperate with the reset component to prevent the reset component from falling out.

4. The developing cartridge according to claim 3, characterized in that, The reset component includes a push rod, an extension arm, a force-applying part, and a fixing part; the push rod is used to limit the rotation of the counter; the extension arm is configured as a cantilever extending from the push rod to both sides, and the extension arm can move in the left and right directions; the force-applying part is used to receive external forces. The fixing part is located at the end of the extension arm and is used to cooperate with the stepped surface on the mounting block.

5. The developing cartridge according to any one of claims 1-4, characterized in that, When the developing cartridge is assembled, a portion of the reset component extends into the mounting cavity.

6. The developing cartridge according to claim 5, characterized in that, The developing cartridge includes an elastic element, which is installed between the mounting block and the reset element. The reset element is movably mounted on the mounting block via the elastic element.

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