Developing box

Abstract

The utility model discloses a developing box. The developing box comprises a shell, a developing roller; the driving force receiving part is arranged on the left side of the shell in the left-right direction, and the driving force receiving part is used for receiving driving force for driving the developing roller to rotate from the outside of the developing box; the shifting protrusion is arranged on the left side of the shell in the left-right direction; the developing box further comprises a first rotating part and a second rotating part, the first rotating part can receive the driving force transmitted by the driving force receiving part to rotate, and the second rotating part can receive the driving force transmitted by the first rotating part to rotate; the shell further comprises a guiding protrusion, the guiding protrusion can guide the second rotating piece to move relative to the shell, and the shifting protrusion can move in response to movement of the second rotating piece. The developing box further comprises a first elastic piece, and the first elastic piece can forcibly push the shifting protrusion rightwards.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic photographic imaging, in particular to a developing box. Background Art

[0002] In the traditional printing industry, there is a developing box that can be removably installed in an imaging device. Depending on the type of this box, the user can perform maintenance operations on the device without relying on service personnel, thereby significantly improving operability. Therefore, this type of box is widely used in imaging devices.

[0003] The prior art discloses a developing box, which is detachably installed in an imaging device. The developing box includes a shell that can accommodate a developer and a driving force receiving portion and a toggle protrusion arranged at one end of the shell in the length direction. The driving force receiving portion can receive the driving force of the imaging device and can drive the toggle protrusion to rotate relative to the shell. During the rotation of the toggle protrusion, the detection body in the imaging device can be toggled. Then, the imaging device can identify different developing boxes, that is, the model, newness and maximum number of printing pages of the developing box, by the length of time the detection body is toggled once and the time interval between two toggles when it is toggled multiple times, which will improve the user's experience. However, the toggle protrusion in the prior art toggles the detection body of the imaging device in a rotatable manner. This rotational toggle method will increase the size of the toggle member, which is not conducive to the miniaturization of the developing box. Moreover, when the detection body of the imaging device needs to be toggled multiple times, multiple toggle protrusions need to be provided on the toggle member, which will also make the structure of the toggle member complicated. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a new developing box, which is mainly achieved through the following technical solutions:

[0005] A developing box, comprising:

[0006] case;

[0007] A developing roller is rotatably supported on the housing and is rotatable about a developing roller rotation axis extending in the left-right direction;

[0008] a driving force receiving portion, disposed on the left side of the housing in the left-right direction, the driving force receiving portion being used to receive a driving force for driving the developing roller to rotate from the outside of the developing cartridge;

[0009] A toggle protrusion is arranged on the left side of the housing in the left-right direction;

[0010] The developing box further includes a first rotating member and a second rotating member, wherein the first rotating member can receive the driving force transmitted by the driving force receiving portion to rotate, and the second rotating member can receive the driving force transmitted by the first rotating member to rotate;

[0011] The shell further includes a guide protrusion, which can guide the second rotating member to move relative to the shell, and the toggle protrusion can move in response to the movement of the second rotating member; the developing box further includes a first elastic member, which can force the toggle protrusion to the right.

[0012] Further, the guide protrusion may guide the second rotating member to move in the left-right direction, and the toggle protrusion may move in the left-right direction in response to the movement of the second rotating member.

[0013] Furthermore, the housing includes a housing body capable of accommodating developer and a protective cover arranged on the left side of the housing body, the guide protrusion is formed on the side wall on the left side of the housing body, and the housing body and the guide protrusion are formed integrally.

[0014] Furthermore, the developing box also includes a limiting groove recessed into the interior of the shell. During the rotation of the second rotating member, at least a portion of the second rotating member can slide into the limiting groove, so that the second rotating member moves from an engaged position with the first rotating member to a disengaged position with the first rotating member.

[0015] Furthermore, the toggle protrusion is provided with a slope which is inclined relative to the left-right direction and can touch the detection body of the imaging device. In the left-right direction, the distance between the slope and the rotation axis of the second rotating member increases along the extension of the slope from left to right.

[0016] Furthermore, the developing box has and is only provided with one said shifting protrusion.

[0017] Furthermore, the developing box further includes an anti-rotation portion, which can block the toggle protrusion in the rotation direction of the second rotating member to limit the rotation of the toggle protrusion relative to the shell.

[0018] Furthermore, the shell includes a shell body that can accommodate the developer and a protective cover arranged on the left side of the shell body, the protective cover can cover at least a portion of the driving force receiving portion, the anti-rotation portion is constructed as a groove formed on the protective cover and extending in the left and right directions, and at least a portion of the toggle protrusion can be inserted into the groove.

[0019] Furthermore, the developing box also includes a second elastic member, and the second elastic member is arranged between the driving protrusion and the second rotating member.

[0020] Furthermore, the developing box also includes a connecting piece connected to the shell, and the shifting protrusion is arranged between the connecting piece and the shell, so that the position of the shifting protrusion in the left-right direction is limited.

[0021] The toggle member in the utility model is constructed to be movable in the left and right directions relative to the shell body. The function of multiple toggle movements of the detection body of the imaging device can be achieved by only setting a toggle protrusion to move back and forth in the left and right directions. Compared with the prior art, it not only simplifies the structure of the toggle member, but also helps to reduce the size of the toggle member, which is conducive to the miniaturization of the developing box. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of a developing box in the utility model;

[0023] Figure 2 It is a schematic diagram of a developing box in which the protective cover is separated from the developing box in the utility model;

[0024] Figure 3 It is a schematic diagram of the detection structure of the developing box in the utility model;

[0025] Figure 4 This is a schematic diagram of the matching relationship between the first rotating member and the second rotating member in the utility model;

[0026] Figure 5 It is a schematic diagram of the guide portion of the housing in the utility model;

[0027] Figure 6 It is a cross-sectional schematic diagram of the detection structure in the utility model;

[0028] Figure 7 It is a cross-sectional schematic diagram of the developing box when the second rotating member in the utility model is in the initial position;

[0029] Figure 8 It is a cross-sectional schematic diagram of the developing box when the second rotating member of the utility model is in the middle position;

[0030] Fig. 9 It is a cross-sectional schematic diagram of the developing box when the second rotating member in the utility model is at the end position. DETAILED DESCRIPTION

[0031] like Figure 1-9As shown, a developing box 100 in the utility model is shown, which can be detachably installed in an imaging device with a detection body; the developing box 100 includes a shell 101, the shell 101 has a shell body 101a that can accommodate a developer and a protective cover 101b arranged on one side of the shell body 101a; the developing box 100 also includes a developing roller 102 supported on the shell 101 and a driving force receiving part 103 arranged on one side of the length direction of the shell 101, and the protective cover 101b can cover at least a part of the driving force receiving part 103 to limit the driving force receiving part 103, The driving force receiving portion 103 is prevented from being separated from the developing box 100, but the driving force receiving portion 103 can be exposed to the outside of the developing box 100 through the first hole 101b1 set on the protective cover 101b, so that the driving force receiving portion 103 can be coupled with the driving force applying portion (not shown) in the imaging device and can receive the rotational driving force output by it to rotate the developing roller 102. For the convenience of the following description, the direction in which the rotation axis of the developing roller 102 extends is defined as the left-right direction or the axial direction, and the driving force receiving portion 103 is set on the left side of the developing box 100 in the left-right direction.

[0032] In order to realize the detection and counting function of the developing box 100, that is, the imaging device can identify the model, newness, oldness, maximum number of printing pages and other information of the developing box 100 by detecting the developing box 100, the developing box 100 also includes a detection structure that can realize the above functions. Next, the structure of the developing box 100 for realizing the above detection function will be described in detail.

[0033] like Figure 4 As shown, the developing box 100 further includes a first rotating member 104 and a second rotating member 105 which are coaxially arranged. The first rotating member 104 can receive the rotational driving force transmitted by the driving force receiving portion 103 and rotate. That is, the first rotating member 104 can rotate in response to the rotation of the driving force receiving portion 103. When viewed from left to right, the first rotating member 104 and the second rotating member 105 can rotate along Figure 3 The first rotating member 104 rotates counterclockwise as indicated by the middle arrow. Specifically, the first rotating member 104 is constructed as a gear having gear teeth 104a arranged on its outer peripheral surface and a driving protrusion 104b arranged on its inner peripheral surface. The driving protrusion 104b is constructed to protrude from the inner peripheral surface of the first rotating member 104 in a radial direction (i.e., a direction perpendicular to the left and right direction) toward the direction of the rotation axis close to the first rotating member 104.

[0034] The second rotating member 105 includes a driven protrusion 105b, which is arranged on the outer surface of the second rotating member 105 and protrudes from the outer surface of the second rotating member 105 in the radial direction toward the direction of the rotation axis away from the second rotating member 105. Before the developing cartridge 100 is detected, the driving protrusion 104b and the driven protrusion 105b have an overlapping portion in the left-right direction and the two are kept engaged. After the first rotating member 104 rotates, the second rotating member 105 can be driven to rotate by the first rotating member 104 through the engagement of the driven protrusion 105b provided thereon with the driving protrusion 104b of the first rotating member 104, that is, Specifically, the second rotating member 105 can rotate in response to the rotation of the first rotating member 104; the second rotating member 105 also includes abutment protrusion 105a, which is configured as a protrusion protruding from the second rotating member 105 toward the side facing the shell 101, and abuts against the right end of the shell 101; the developing box 100 also includes a column 101a1 arranged on the left side of the shell body 101a and extending from the shell body 101a in the left and right directions toward the direction away from the shell 101, and the first rotating member 104 and the second rotating member 105 can be sleeved on the column 101a1 and positioned in the radial direction; specifically, the developing box 100 also includes The guide portion 110 is provided on the left side of the housing 101, and the guide portion 110 can be used to guide the movement of the abutting protrusion 105a. In other words, the abutting protrusion 105a of the second rotating member 105 can abut against the guide portion 110 and can move along the preset path of the guide portion 110. As an example, the guide portion 110 in this embodiment is provided on the housing body 101a to correspond to the moving direction of the toggle protrusion 106a, simplifying the structure of the developer cartridge. Optionally, it can also be provided on the protective cover 101b, which is not limited. Further, the guide portion 110 is formed integrally with the housing body 101a, so that only one set of molds is required when producing the two. That is, the production cost of the developing box 100 is reduced; the guide portion 110 includes a surface 111 arranged crosswise with the left and right directions, a first limit portion 113 protruding outward from the surface 111, and a plurality of protrusions arranged on the surface 111. As an example, the plurality of protrusions include a first protrusion 114 and a second protrusion 115. Optionally, the protrusion is not limited to the first protrusion 114 and the second protrusion 115. It can also have only one protrusion or more than two protrusions, and the shape of the protrusion is not limited, and can be set according to different models of developing boxes. The utility model is only described by taking the first protrusion 114 and the second protrusion 115 as an example;The first limiting portion 113, the first protrusion 114 and the second protrusion 115 are arranged at intervals around the column 101a1 in the rotation direction of the second rotating member 105. Before the developing cartridge 100 is detected, the abutting protrusion 105a of the second rotating member 105 abuts on the surface 111 between the first limiting portion 113 and the first protrusion 114 in the rotation direction of the second rotating member 105, so as to limit the position of the abutting protrusion 105a in the rotation direction of the second rotating member 105, so that the position of the second rotating member 105 can be stably maintained. This position is also referred to as the initial position of the second rotating member 105, and in this position, the driven protrusion 105b of the second rotating member 105 abuts against the first rotating member 105b. The driving protrusion 104b of 104 is engaged and can receive the rotational driving force of the first rotating member 104 and rotate; the first protrusion 114 includes a guide portion 114a, and in the rotation direction of the second rotating member 105, the guide portion 114a is arranged on the upstream side of the second protrusion 114, and the upstream side of the guide portion 114a is adjacent to the surface 111. The guide portion 114a is constructed as a surface inclined relative to the left and right directions formed on the first protrusion 114, and at least a portion of it faces the upstream side of the second rotating member 105. In other words, in the left and right directions, the distance between the guide portion 114a and the right end of the shell 101 increases along the extension of the guide portion 114a in the rotation direction of the second rotating member 105. When the second rotating member 105 is subjected to a force and starts to rotate from the initial position, the abutting protrusion 105a of the second rotating member 105 is separated from the surface 111 and abuts against the guide portion 114a, and under the guidance of the guide portion 114a, the abutting protrusion 105a can rotate relative to the housing 101 along the guide portion 114a and move to the left at the same time, that is, the second rotating member 105 can rotate relative to the housing 101 along the guide portion 114a and move to the left at the same time, in other words, during this process, the second rotating member 105 can move in the left-right direction in a direction away from the housing 101 until it is separated from the first protrusion 114. After separating from the first protrusion 114, the second rotating member 105 moves to the right due to loss of support, that is, it moves in the left-right direction in a direction close to the housing body 101a, and abuts against the surface 111 again, that is, the second rotating member 105 can slide on the first protrusion 114 and move first to the left and then to the right;The structure of the second protrusion 115 is substantially the same as that of the first protrusion 114, and will not be described in detail here. That is to say, the second rotating member 105 can slide on the first protrusion 114 and the second protrusion 115 successively, and reciprocate in the left and right directions relative to the shell 101, that is, reciprocate between the position away from the shell body 101a and the position close to the shell body 101a. The position of the second rotating member 105 closer to the left side of the shell body 101a relative to the initial position is defined as the middle position of the second rotating member 105. That is to say, when the second rotating member 105 is in the initial position and the middle position, the second rotating member 105 can receive the driving force transmitted by the first rotating member 104 to rotate. For the convenience of the following description, the second rotating member 105 in the initial position and the middle position are collectively referred to as the meshing position; further, the guide portion 110 also includes a second limiting portion 112, which is a groove structure that is recessed from the surface 111 into the shell 101 (in the utility model, it refers to the recessed from the surface 111 to the right end of the shell 101). The second limiting portion 11 The bottom end surface of 2 is closer to the right end of the housing 101 in the left-right direction than the surface 111. Following the movement process of the second rotating member, when the second rotating member 105 is disengaged from the second protrusion 115 and moves from left to right, the abutting protrusion 105a will abut against the surface 111 again. After sliding along the surface 111 for a distance, the abutting protrusion 105a is disengaged from the surface 111 and slides from the surface 111 to the second limiting portion 112. In this process, the second rotating member 105 will further move to the right. The second rotating member 105 will stop rotating and moving relative to the housing 101. In other words, the second rotating member 105 in this position will not be able to receive the rotational driving force output by the first rotating member 104 to rotate. This position is also referred to as the terminal position of the second rotating member 105. For the convenience of the following description, the terminal position of the second rotating member 105 is also referred to as the meshing position. In general, the second rotating member 105 can first slide along the first protrusion 114 and the second protrusion 115 of the guide portion 110 under the drive of the first rotating member 104. In this process, the second rotating member 105 can reciprocate in the left-right direction toward a position away from the housing body 101a and close to the housing body 101a, and finally enter the second limiting portion 112 to disengage from the first rotating member 104, and stop rotating and moving, that is, the second rotating member 105 can move from an engaged position engaged with the first rotating member 104 to a disengaged position disengaged from the first rotating member 104. ;

[0035] The developing box 100 further includes a toggle member 106 coaxially arranged with the first rotating member 104 and the second rotating member 105, the toggle member 106 is arranged on the left side of the second rotating member 105 and is kept in contact with the left side of the second rotating member 105, the toggle member 106 is also sleeved on the column 101a1 of the shell body 101a and is positioned in the radial direction, the toggle member 106 includes a toggle protrusion 106a that can toggle the detection body of the imaging device, the toggle protrusion 106a passes through the second hole 101b2 formed on the protective cover 101b and is exposed to the outside of the developing box 100, and there is only one toggle member 106. In the process of the second rotating member 105 moving to the left, the second rotating member 105 can push the toggle member 106 to move to the left, that is, the toggle member 106 can move in response to the movement of the reciprocating second rotating member 105. Therefore, during the movement, the toggle member 106 can toggle the detection body of the imaging device for many times, and then the imaging device can process and identify the model, new and old and the maximum number of printed pages of the developing box 100 through the toggle signal of the detection body. That is to say, in the present invention, the toggle member 106 in the developing box 100 is only provided with one toggle protrusion, which can toggle the detection body in the imaging device for many times, which reduces the toggle signal. The number of the movable protrusions 106 simplifies the structure of the toggle member 106, and the toggle member 106 can toggle the detection body of the imaging device by reciprocating in the left and right directions, which helps to reduce the size of the toggle member and facilitates the miniaturization of the developing box 100; therefore, it can be known from the above that the toggle member 106 has a first position and a second position, and the toggle member 106 is located in the second position. Compared with the toggle member 106 located in the first position, it is at least a part of the toggle member 106 that is farther away from the right end of the housing body 101a in the left and right direction. When the toggle member 106 is located in the first position, the toggle member 106 can touch (contact) the detection body of the imaging device and is in a pre-positioned state. The toggle member 106 is located at the position of the pressure detection body, but the pre-pressure amount of the toggle member 106 at this position is small and insufficient for the imaging device to detect the toggle signal. When the toggle member 106 is located at the second position, the toggle member 106 also touches the detection body of the imaging device and can toggle the detection body, so that the imaging device can detect the toggle amount and record the toggle signal. That is to say, when the developing cartridge 100 is installed in the imaging device, regardless of whether the developing cartridge 100 is detected, the toggle protrusion 106a always keeps in contact with the detection body of the imaging device, which helps to shorten the moving stroke of the toggle member 106 in the left and right directions, and is conducive to the miniaturization of the developing cartridge 100.Furthermore, an inclined surface 106a1 is formed on the toggle protrusion 106a, and the inclined surface 106a1 is inclined relative to the left and right directions, and at least a portion of the inclined surface 106a1 faces the left end of the developer box 100. In other words, in the left and right directions, the distance between the inclined surface 106a1 and the right end of the shell 101 increases along the extension of the inclined surface 106a1 in the direction from left to right. In the process of the toggle protrusion 106a moving to the left, the inclined surface 106a1 can be used to guide the movement of the toggle member 106 in the process of the toggle member 106 abutting against the detection body of the imaging device, thereby avoiding interference between the toggle member 106 and the detection body during the movement, thereby improving the smoothness of the toggle member 106 toggling the detection body; further, since the second rotating member 105 has friction with the toggle member 106 when they contact each other during the rotation process, the friction has a tendency to drive the toggle member 106 to rotate relative to the shell 101. Therefore, in order to avoid the second rotating member 105 driving the toggle member 106 to rotate in the process of rotating and moving at the same time. , causing the toggle protrusion 106a to be out of the correct position in its circumferential direction and unable to toggle the detection body of the imaging device. The housing 101 is also provided with an anti-rotation portion 101b3 adjacent to the second hole 101b2. At least a portion of the toggle member 106 can be inserted into the anti-rotation portion 101b3 to limit the rotation of the toggle member 106 relative to the housing 101. Specifically, it is provided on the protective cover 101b. The anti-rotation portion 101b3 is configured as a slide groove formed on the protective cover 101b. The toggle protrusion 106a is 6a is placed in the slide groove to limit the rotation of the toggle protrusion 106. Therefore, even if the toggle member 106 has a tendency to be driven to rotate by the second rotating member 105 due to friction, the toggle member 106 can be restricted from rotating by the toggle protrusion 106a being restricted by the anti-rotation portion 101b3, so that the toggle member 106 can only move in the left and right directions when driven by the second rotating member 105, thereby ensuring the position of the toggle protrusion 106a in the circumferential direction and the toggle accuracy of the detection object of the toggle imaging device. ;

[0036] The developer box 100 further includes a second elastic member 108, a first elastic member 109 and a connecting member 107. The connecting member 107 is fixedly connected to the left end (i.e., the free end or the extended end) of the column 101a1 of the housing 101. The connecting member 107 is preferably a screw. The second elastic member 108 is arranged between the toggle member 106 and the second rotating member 105. The first elastic member 109 is connected between the connecting member 107 and the toggle member 106. Preferably, the second elastic member 108 and the first elastic member 109 are both compression springs. One end of the elastic force generated by compression 108 is applied to the second rotating member 105, so that the second rotating member 105 has a tendency to move to the right, to ensure that the abutting protrusion 105a of the second rotating member 105 can smoothly contact the surface 111 after breaking away from the first protrusion 114 and the second protrusion 115, and to ensure that the abutting protrusion 105a can smoothly slide from the surface 111 to the second limiting portion 112, and finally keep the second rotating member 105 in the terminal position. At this time, the position of the second rotating member 105 is maintained. The elastic force generated by the compression of the first elastic member 109 can be applied to the toggle member 106, so that the toggle member 106 has a tendency to move to the right. It is worth mentioning that the elastic force of the first elastic member 109 is greater than the elastic force of the second elastic member 108. Before the developing box 100 is detected, the toggle member 106 can resist the elastic force of the second elastic member 108 under the forced push of the first elastic member 109, and force the toggle member 106 to maintain a first position that is not detected by the detection body of the imaging device, and can also maintain the toggle member 106 in close contact with the first rotating member 104. Through the common restriction with the shell 101, the position of the first rotating member 104 in the left and right directions is maintained, avoiding the possibility of the first rotating member 104 shaking in the left and right directions. As a result, the position of the first rotating member 104 in the left and right directions is limited; therefore, by providing the first elastic member 109, the toggle member 106 is maintained in the first position, and the first rotating member 104 is limited in the left and right directions.

[0037] It is worth mentioning that the toggle protrusion 106a is not limiting, but the developer box 100 of the present invention adopts a preferred implementation.

[0038]

Developer cartridge testing process

[0039] like Figure 7-9 As shown, it shows the process of the detection structure of the developing box 100 in the utility model being detected by the imaging device; specifically, as Figure 7, which shows a cross-sectional schematic diagram of the developing cartridge 100 when the second rotating member 105 is in the initial position. Before the developing cartridge 100 is detected, the driving force receiving portion 103 does not receive the rotational driving force of the driving force applying portion of the imaging device, and the first rotating member 104 and the second rotating member 105 axially meshed with the first rotating member 104 do not rotate. At this time, the abutting protrusion 105a provided on the second rotating member 105 abuts against the surface 111 and remains in the initial position, and the toggle member 106 is pushed rightward by the first elastic member 109 and remains in the first position; Figure 8 As shown, with the start-up of the imaging device, the driving force receiving portion 103 receives the rotational driving force and rotates the first rotating member 104, and the first rotating member 104 drives the second rotating member 105 to rotate together, and gradually breaks away from contact with the surface 111 and, under the guidance of the guide portion 114a of the first protrusion 114, can overcome the elastic force of the second elastic member 108 and move to the left. Almost at the same time, the moved second rotating member 105 pushes the toggle member 106 to overcome the elastic force of the first elastic member 109 and also move to the left, and move from the first position to the second position. At this time, during the movement of the toggle member 106, the toggle protrusion 106a will toggle the detection body of the imaging device, and the imaging device will record the toggle signal; until the second rotating member 105 rotates further, the abutting protrusion 105a provided thereon breaks away from contact with the first protrusion 114, and the second elastic member 108 moves to the left. The elastic forces of the elastic member 108 and the first elastic member 109 are released and applied to the second rotating member 105 and the toggle member 106 respectively, so that the second rotating member 105 moves to the right and contacts the surface 111 again, and the toggle member 106 moves to the right from the second position to the first position again, and then the second rotating member 105 will be separated from the surface 111 again and contact the guide portion of the second protrusion 115, and the subsequent process is roughly the same as the above-mentioned process of contacting the first protrusion 114, which will not be repeated here; that is, the toggle member 106 will toggle the detection body of the imaging device for the second time, and the imaging device will detect the toggle signal again, and record the interval time between the toggle signal and the first toggle signal and the duration of the second toggle, and then the toggle signal can be processed to identify the model, newness and maximum number of print pages of the developing box 100; Fig. 9As shown, after the second rotating member 105 rotates further, the abutting protrusion 105a of the second rotating member 105 is disengaged from the second protrusion 115 and abuts against the surface 111 again. Finally, the abutting protrusion 105a of the second rotating member 105 will enter the second limiting portion 112 along the surface 111. At this time, the second rotating member 105 moves rightward relative to the housing 101 and maintains a gap with the toggle member 106 in the left-right direction. In addition, as the second rotating member 105 moves rightward, the driven protrusion 105b on the second rotating member 105 is axially disengaged from the driving protrusion 104b of the first rotating member 104. , which makes the second rotating member 105 unable to receive the rotational driving force from the first rotating member 104. Even if the first rotating member 104 is still continuously receiving the rotational driving force from the driving force receiving portion 103, the first rotating member 104 is disengaged from the second rotating member 105 and cannot transmit the rotational driving force to the second rotating member 105. Under the elastic force of the second elastic member 108, the abutting protrusion 105a of the second rotating member 105 is placed in the second limit portion 112 and is stably maintained. At this point, the toggle member 106 will remain in the first position and no longer move, and the detection process is terminated.

[0040] The toggle member in the utility model is constructed to be movable in the left and right directions relative to the shell body. The function of multiple toggle movements of the detection body of the imaging device can be achieved by only setting a toggle protrusion to move back and forth in the left and right directions. Compared with the prior art, it not only simplifies the structure of the toggle member, but also helps to reduce the size of the toggle member, which is conducive to the miniaturization of the developing box.

Claims

1. A developing box, comprising: case; A developing roller is rotatably supported on the housing and is rotatable about a developing roller rotation axis extending in the left-right direction; a driving force receiving portion, disposed on the left side of the housing in the left-right direction, the driving force receiving portion being used to receive a driving force for driving the developing roller to rotate from the outside of the developing cartridge; A toggle protrusion is arranged on the left side of the housing in the left-right direction; The developing box further comprises a first rotating member and a second rotating member, wherein the first rotating member can rotate by receiving the driving force transmitted by the driving force receiving portion, and the second rotating member can rotate by receiving the driving force transmitted by the first rotating member; The shell further includes a guide protrusion, which can guide the second rotating member to move relative to the shell, and the toggle protrusion can move in response to the movement of the second rotating member; the developing box further includes a first elastic member, which can force the toggle protrusion to the right.

2. The developing cartridge according to claim 1, characterized in that: The guide protrusion may guide the second rotating member to move in the left-right direction, and the toggle protrusion may move in the left-right direction in response to movement of the second rotating member.

3. The developing cartridge according to claim 1, characterized in that: The housing includes a housing body capable of accommodating developer and a protective cover arranged on the left side of the housing body, the guide protrusion is formed on the side wall on the left side of the housing body, and the housing body and the guide protrusion are formed integrally.

4. The developing cartridge according to claim 1, wherein: The developing box also includes a limiting groove recessed into the interior of the shell. During the rotation of the second rotating member, at least a portion of the second rotating member can slide into the limiting groove, so that the second rotating member moves from an engaged position with the first rotating member to a disengaged position with the first rotating member.

5. The developing cartridge according to claim 1, wherein: The toggle protrusion is provided with an inclined surface which is inclined relative to the left-right direction and can touch the detection body of the imaging device. In the left-right direction, the distance between the inclined surface and the rotation axis of the second rotating member increases along the extension of the inclined surface from left to right.

6. The developing cartridge according to claim 1, characterized in that: The developing box has and is only provided with one said shifting protrusion.

7. The developing cartridge according to claim 1, characterized in that: The developing cartridge further includes an anti-rotation portion that blocks the toggle protrusion in a rotation direction of the second rotating member to restrict the toggle protrusion from rotating relative to the housing.

8. The developing cartridge according to claim 7, wherein: The shell includes a shell body that can accommodate the developer and a protective cover arranged on the left side of the shell body, the protective cover can cover at least a portion of the driving force receiving portion, the anti-rotation portion is constructed as a groove formed on the protective cover and extending in the left and right directions, and at least a portion of the toggle protrusion can be inserted into the groove.

9. The developing cartridge according to claim 1, wherein: The developing box further includes a second elastic member, which is disposed between the shifting protrusion and the second rotating member.

10. The developing cartridge according to claim 9, characterized in that: The developing box further includes a connecting piece connected to the housing, and the toggling protrusion is arranged between the connecting piece and the housing, so that the position of the toggling protrusion in the left-right direction is restricted.

Images