Developing box

Abstract

The utility model discloses a developing box, which comprises a shell extending in the left-right direction; a developing roller supported by the housing and rotatable about a developing roller axis extending in the left-right direction; a coupling gear located on the left side of the housing in the left-right direction and rotatable by receiving a driving force from the outside of the developing cartridge; a stirring rack configured to rotate according to the rotation of the coupling gear and having a stirring rack shaft extending in the left-right direction; the developing box further comprises a transmission rod and a stirring piece, the transmission rod can respond to rotation of the coupling gear to move in the left-right direction relative to the stirring frame shaft, the stirring piece can move according to movement of the transmission rod, and the transmission rod and the stirring frame shaft are coaxially arranged.

Description

Technical Field

[0001] The utility model relates to a detachable developing box which is installed in an imaging device. The imaging device is an electronic photographic imaging device. Background Art

[0002] A developing box is known in the art, such as Chinese patent publication number CN205450563U, which is provided with a detected component, the detected component has a protrusion, and the imaging device is provided with a detection unit. Specifically, when the developing box is installed in the imaging device and the developing box subsequently receives a driving force from the imaging device, the detected component rotates, and the rotation of the detected component causes the protrusion to shift between a contact state in which the protrusion contacts the detection unit and a non-contact state in which the protrusion does not contact the detection unit. This displacement of the protrusion between the contact state and the non-contact state or the number of protrusions indicates the specification of the developing box. Utility Model Content

[0003] The utility model further develops the prior art. On one hand, the utility model provides a developing box, the toggle member of which can also realize the function of toggle the detection body in the imaging device to move to indicate the specification of the developing box without rotating. On the other hand, the utility model provides a more miniaturized developing box.

[0004] The utility model is realized by the following technical solutions:

[0005] A developing box, comprising:

[0006] A housing extending in the left-right direction;

[0007] A developing roller, supported by the housing and rotatable about a developing roller axis extending in the left-right direction;

[0008] A coupling gear, located on the left side of the housing in the left-right direction, and capable of receiving a driving force from outside the developing box to rotate;

[0009] a stirring frame configured to rotate according to the rotation of the coupling gear, and having a stirring frame shaft extending in the left-right direction;

[0010] It is characterized in that the developing box also includes a transmission rod and a toggle member, the transmission rod can move in the left and right directions relative to the stirring frame shaft in response to the rotation of the coupling gear, the toggle member can move according to the movement of the transmission rod, and the transmission rod is coaxially arranged with the stirring frame shaft.

[0011] Furthermore, the stirring frame shaft is configured as a hollow structure with openings at both ends, and the transmission rod is disposed in the stirring frame shaft and passes through the openings at both ends.

[0012] Further, in the left - right direction, the length of the transmission rod is greater than the length of the stirring frame shaft, so that both sides of the transmission rod protrude beyond the stirring frame shaft.

[0013] Further, it further includes a rotating member. The rotating member is arranged on the left side of the housing in the left - right direction. The rotating member can rotate according to the rotation of the coupling gear, and the rotating member is coaxially arranged with the transmission rod.

[0014] Further, the rotating member includes a spiral groove. One end of the transmission rod has a transmission protrusion. The spiral groove can cooperate with the transmission protrusion to enable the transmission rod to move in the left - right direction.

[0015] Further, a reset portion is arranged at the left end of the rotating member. The reset portion is configured as a special - shaped groove.

[0016] Further, it further includes a sealing member. An avoidance groove extending in the left - right direction is arranged on one side wall of the stirring frame shaft. The sealing member can seal the avoidance groove.

[0017] Further, a receiving groove is formed by the end of the transmission rod being recessed inward. The intermediate member is installed in the receiving groove. The intermediate member includes an elastic arm that bends and extends and a transmission protrusion arranged at one end of the elastic arm. A through - hole is formed on the outer circumferential surface of the transmission rod. The through - hole communicates with the receiving groove. The through - hole is arranged corresponding to the transmission protrusion, so that the transmission protrusion can expose outside the transmission rod through the through - hole.

[0018] Further, it further includes a stirring frame gear. The stirring frame gear can rotate following the rotation of the coupling gear. The rotating member can rotate according to the rotation of the stirring frame gear. The stirring frame gear can drive the stirring frame to rotate. The stirring frame gear is coaxially arranged with the transmission rod.

[0019] Further, it further includes an elastic member. The elastic member is arranged between the rotating member and the stirring frame gear in the left - right direction. The rotating member has a first meshing portion, and the stirring frame gear has a second meshing portion. The first meshing portion can mesh with and disengage from the second meshing portion in the left - right direction under the action of the elastic member.

[0020] After adopting the above - mentioned technical solution, a new detection assembly for a developing cartridge is provided. By adopting a spiral - groove structure design to transmit the driving force, the transmission component can move in the left - right direction. Compared with the existing gear - transmission structure, it has a smaller space. Therefore, the developing cartridge can be made thinner and smaller. Description of the Drawings

[0021] Figure 1It is a schematic diagram of a developing box provided in Example 1 of the utility model;

[0022] Figure 2 It is an exploded schematic diagram of the driving side of the developing cartridge provided in Embodiment 1 of the present utility model;

[0023] Figure 3 It is a schematic diagram of a developer cartridge provided in Embodiment 1 of the present utility model, which is exploded at a certain angle;

[0024] Figure 4 It is a schematic diagram of another angle of decomposition of the developing box provided in Embodiment 1 of the utility model;

[0025] Figure 5 It is a partially exploded schematic diagram of a developing box provided in Example 1 of the utility model;

[0026] Figure 6 It is a schematic diagram of the transmission component and the shifting member of the developing box provided in Example 1 of the utility model;

[0027] Figure 7 It is an exploded schematic diagram of the driving side of the developing cartridge provided in Embodiment 2 of the present utility model;

[0028] Figure 8 This is a schematic diagram of a developer cartridge provided in Embodiment 2 of the present utility model, which is exploded at a certain angle;

[0029] Figure 9 It is a schematic diagram of the assembly relationship of a driving rod, a stirring frame shaft, and a stirring frame gear of a developing box at a certain angle provided by Embodiment 2 of the utility model;

[0030] Figure 10 This is a schematic diagram of the assembly relationship of the transmission rod, the stirring frame shaft, and the stirring frame gear of the developing box provided in Embodiment 2 of the present utility model at another angle;

[0031] Figure 11 It is a partially exploded schematic diagram of the driving side of the developing cartridge provided in Embodiment 3 of the present utility model;

[0032] Figure 12 It is a schematic diagram of the assembly relationship between a certain angle transmission component of a developing box and a stirring frame shaft provided in Embodiment 3 of the present utility model;

[0033] Figure 13 is a cross-sectional view of a driving side portion of a developing cartridge provided in Embodiment 3 of the present utility model;

[0034] Figure 14 It is a cross-sectional view of the driving side portion of the developing box provided in Example 3 of the utility model when it is reset. DETAILED DESCRIPTION

[0035] The following will describe in detail the embodiments of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0036]

Embodiment 1

[0037] First, as Figures 1 to 6 shown, the developing cartridge of the present invention is detachably installed in a drum unit (not shown), and can be detachably installed in an imaging device together with the drum unit. The developing cartridge includes a housing 1, a developing roller 2, a powder feeding roller 3, and a stirring frame shaft 4. The housing 1 has a developer accommodating portion 1a for accommodating the developer. The developing roller 2 and the powder feeding roller 3 are rotatably supported by the housing 1. The developing roller 2 can rotate around a developing roller axis extending in the left-right direction, and the powder feeding roller 4 can rotate around a powder feeding roller axis extending in the left-right direction. At least a part of the stirring frame shaft 5 is located in the developer accommodating portion 1a of the housing 1. It is defined that the developing roller 2, the powder feeding roller 3, and the stirring frame shaft 4 of the developing cartridge are arranged in sequence in the front-rear direction. The developing roller 2 is provided on the front end side in the front-rear direction of the developing cartridge, and the handle is provided on the rear end side in the front-rear direction of the developing cartridge. The front-rear direction of the developing cartridge is perpendicular to the above-mentioned left-right direction. One side of the developing cartridge where the coupling gear 11 is located is the driving side 10 of the developing cartridge. In the left-right direction, the driving side 10 is the left end of the housing 1. The electrode 21 is configured to straddle the left and right sides of the housing 1. The electrode 21 is electrically connected to the developing roller 2 and the powder feeding roller 3. The electrode 21 has an electrical contact surface 21a, and this electrical contact surface 21a can be in electrical contact with a power supply component in the imaging device. The side where the electrical contact surface 21a is located is provided on the conductive side 20 of the developing cartridge. The driving side 10 and the conductive side 20 are respectively located at two side ends of the housing 1 in the left-right direction. The toggling member 22 is provided on the conductive side 20 and is used to toggle a detection body (not shown) in the imaging device to output information such as whether the developing cartridge is a new cartridge or the page yield of the developing cartridge to the imaging device. That is to say, the toggling member 22 as the detected body can be detected by the imaging device.

[0038] The driving side 10 of the developing cartridge includes a coupling gear 11, a developing roller gear 12, a powder feeding roller gear 13, and a stirring frame gear 14. The coupling gear 11 can be engaged with a driving shaft in the imaging device to receive a driving force. Both the developing roller gear 12 and the powder feeding roller gear 13 are in contact with and engaged with the coupling gear 11, and can respectively drive the developing roller 2 and the powder feeding roller 3 to rotate. The stirring frame gear 14 is also engaged with the coupling gear 11 and can rotate following the rotation of the coupling gear 11. The left end of the stirring frame shaft 4 is connected to the stirring frame gear 14 and can be driven to rotate by the stirring frame gear 14. A driving side cover 19 is further provided on the driving side 10 of the developing cartridge. The driving side cover 19 is arranged to cover at least a part of the coupling gear 11, the developing roller gear 12, the powder feeding roller gear 13, and the stirring frame gear 14. A storage component 15 and a storage component mounting bracket 16 for supporting the storage component 15 are further provided on the driving side 10 of the developing cartridge. The storage component 15 stores relevant information of the developing cartridge and can establish a communication connection with the imaging device. The storage component mounting bracket 16 is detachably mounted on the driving side cover 19. Optionally, the storage component mounting bracket 16 can also be configured to be detachably mounted on the housing 1, which is not limiting.

[0039] On the left and right sides of the housing 1, a first hole 17 and a second hole 27 are provided. The first hole 17 and the second hole 27 are through holes formed on the left and right side walls of the housing 1 respectively. The left and right sides of the stirring frame shaft 4 pass through the first hole 17 and the second hole 27 respectively and are rotatably supported in the housing 1. The stirring frame shaft 4 is provided with a hollow structure with openings on both sides. In order to reduce the volume of the stirring frame shaft 4, the stirring frame shaft 4 is generally provided with a columnar structure with a rectangular cross-section. The developing cartridge further includes a transmission rod 5. The transmission rod 5 is disposed in the stirring frame shaft 4 and passes through the openings on both sides of the stirring frame shaft 4. Specifically, the transmission rod 5 is coaxially disposed with the stirring frame shaft 4 and can move in the left and right directions relative to the stirring frame shaft 4. The length of the transmission rod 5 is greater than the length of the stirring frame shaft 4, so that both sides of the transmission rod 5 protrude outside the stirring frame shaft 4. On the outer circumferential surface of one end of the transmission rod 5 close to the driving side 10, a transmission protrusion 5a extends radially outward. There can be multiple transmission protrusions 5a. Preferably, the transmission protrusion 5a is provided as one. The stirring frame gear 14 includes a gear portion 14a meshing with the coupling gear 11 and a spiral groove 14b coupled with the transmission protrusion 5a. The transmission protrusion 5a on the transmission rod 5 is disposed in the spiral groove 14b and can cooperate with the spiral groove 14b. The stirring frame gear 14 can force the transmission rod 5 to move in the left and right directions when generating an axial force during rotation following the coupling gear 11. Specifically, the transmission rod 5 has a first position and a second position. The transmission rod 5 in the first position is closer to the left end of the developing cartridge than the transmission rod 5 in the second position. That is to say, when the transmission rod 5 moves from the first position to the second position, the whole transmission rod 5 moves from the left end to the right end. When the transmission rod 5 is in the first position, the transmission protrusion 5a is coupled with the spiral groove 14b, and the transmission rod 5 can move to the right under the drive of the axial force generated by the spiral groove 14b. When the transmission rod 5 is in the second position, the transmission protrusion 5a of the transmission rod 5 disengages from the spiral groove 14b, and the transmission rod 5 stops moving. When the developing cartridge is a new developing cartridge, the transmission rod 5 is in the first position.

[0040] The conductive side 20 of the developing cartridge includes a toggling member 22, a transmission member 23, and a conductive side cover 29. The conductive side cover 29 is mounted on the conductive side 20 of the developing cartridge in a manner that covers at least a part of the transmission member 23. Among them, the transmission member 23 is sleeved on the right end portion of the transmission rod 5 and is coaxially arranged with the transmission rod 5. And at least a part of the transmission member 23 is received in the second hole 27 of the housing 1 and is movably supported by the housing 1. Specifically, it can move relative to the housing 1 in the left-right direction. The transmission member 23 can be composed of a single part or multiple parts. Preferably, the transmission member 23 is provided as one. The transmission member 23 is sequentially provided with a limiting portion 23b and a pushing portion 23a from left to right. Preferably, both the limiting portion 23b and the pushing portion 23a are configured as protrusions formed on the transmission member 23. Among them, the pushing portion 23a can push the toggling member to cause the toggling member 22 to toggle the detection body in the imaging device and be detected by the imaging device. The limiting portion 23b is snapped into the strip-shaped groove provided in the conductive side cover 29, and can limit the transmission member 23 from rotating during the movement. That is to say, by providing the limiting portion 23b on the transmission member 23, the transmission member 23 can only perform axial movement, which can further avoid the problem that the pushing portion 23a provided on the transmission member 23 cannot push the toggling member 22 due to the rotation of the transmission member 23, and improves the detection accuracy. And the toggling member 22 is slidably arranged on the conductive side cover 29 relative to the conductive side cover 29. Preferably, a pair of sliding guide rails 24 are provided on the conductive side cover 29, and a pair of grooves 22a cooperating with the sliding guide rails 24 are provided on the toggling member 22. The grooves 22a can be snapped onto the pair of sliding guide rails 24 and can slide at least in the up-down direction along the sliding guide rails 24. The toggling member 22 further includes a toggling portion 22b and a pushed portion 22c. The toggling portion 22b is used to contact the detection body in the imaging device during the movement of the toggling member 22 and can toggle the detection body to move. When the transmission member 23 moves, the pushed portion 22c is pushed by the pushing portion 23a provided on the transmission member 23 to cause the toggling member 22 to move. Among them, the number of the pushed portions 22c is not limited, and can be one, or two or more, and can be specifically set according to the number of times the toggling member 22 of different developing cartridges needs to toggle the detection body. The holding member 6 is provided on the driving side 10 of the developing cartridge. Preferably, the holding member 6 adopts a spring with a simple structure. The holding member 6 is sleeved on the agitating frame shaft 4, one end abuts against the left side wall of the housing 1, and the other end abuts against the agitating frame shaft 4 to position the agitating frame shaft 4 on the housing 1. When the agitating frame is installed, it prevents the agitating frame shaft 4 from moving back and forth in the left-right direction. Further, sealing rings 25 are respectively provided in the first hole 17 and the second hole 27 of the developing cartridge. A pair of sealing rings 25 are respectively sleeved on the left end of the agitating frame shaft 4 and the left end of the agitating frame shaft 4. By providing the sealing rings on the developing cartridge, it can be used to prevent the developer from leaking out of the developer accommodating portion 1a when the agitating frame shaft 4 moves.For the convenience of the injection molding of the stirring frame shaft 4, an avoidance groove 4a extending in the left-right direction is provided on one side wall of the stirring frame shaft 4. Preferably, in order to prevent the developer from leaking out of the developer accommodating portion 1a through the hollow structure of the stirring frame shaft 4 when the transmission rod 5 moves, a sealing strip is provided outside the side wall of the stirring frame shaft 4 to seal the avoidance groove 4a. Specifically, the sealing strip can be fixed on the stirring frame shaft 4 by adhesives such as glue or by hot melting.

[0041] Next, the process of the developing cartridge being detected by the detecting body of the imaging device will be specifically described. First, when the coupling gear 11 does not receive the driving force in the imaging device, the transmission rod 5 is in the first position, and the transmission protrusion 5a is engaged in the spiral groove 14b of the stirring frame gear 14. When the coupling gear 11 receives the driving force in the imaging device and is driven to rotate, the coupling gear 11 transmits the driving force to the stirring frame gear 4 to drive the stirring frame gear 4 to rotate. During the rotation, the stirring frame gear 14 generates a pushing force approaching the right end in the axial direction through the engagement of the spiral groove 14b and the transmission protrusion 5a. The transmission rod 5 can move from the left end to the right end under the push of the stirring frame shaft 4. At the same time, after the transmission rod 5 starts to move, the transmission rod 5 pushes the transmission member 23 to move from the left end to the right end, that is, the transmission member 23 gradually extends to the right in the left-right direction. During the process of the transmission member 23 extending to the right, by the contact and application of force between the pushing inclined surface provided on the pushing portion 23a and the pushed inclined surface provided on the pushed portion 22c, the toggling member 22 moves upward in the up-down direction. Optionally, since the pushing inclined surface is provided on the transmission member 23, the pushed inclined surface may not be provided on the pushed portion 22c of the toggling member 22, or only one of them is provided with an inclined surface, which is not limited. It should be understood that the moving direction of the transmission member 23 does not need to completely overlap with the left-right direction. It can be a movement along an angle with the left-right direction, as long as its moving direction has a component in the left-right direction. In other words, the transmission member 23 moves at least in the left-right direction. Similarly, the toggling member 22 also moves at least in the up-down direction. In this embodiment, it is preferred that the transmission member 23 moves along the left-right direction and the toggling member 22 moves along the up-down direction to better describe the detection process of the developing cartridge.

[0042] It should be noted that the toggle member 22 can toggle the detection body multiple times by providing a plurality of pushed portions 22c, and the toggle member 22 can move back and forth up and down, and the detection body in the imaging device itself has a return elastic element (not shown in the figure). When the toggle member 22 is required to toggle the detection body multiple times, the detection body can return to a position where it can be toggled by the toggle member 22 each time the toggle member 22 toggles the detection body once, that is, the detection body can move back and forth between the non-toggle position and the toggle position to realize the detection of developer boxes of different specifications, and a power supply component is also provided on the detection body in the imaging device, which can supply power to the developing roller 2 and the powder feeding roller 3 in the developing box, and in the process of the detection body being toggled and moved, the inside of the imaging device will identify whether the detection body is toggled through an electrical signal detection component connected to the power supply component.

[0043] [Example 2]

[0044] Next, Example 2 of the utility model will be introduced. This Example 2 shows a developing box. The developing box in this Example 2 is relative to the developing box in the above-mentioned Example 1. The two are the same in that both first push the transmission rod to move to the right by setting a spiral groove, and then the transmission rod pushes the transmission component 23 to move to force the transmission component 23 to shift the shifting member 22. The difference is that this Example 2 further improves the original detection structure of the developing box. Next, the improved detection structure will be described in detail.

[0045] like Figures 7 - 10As shown, in this embodiment, the agitating frame gear 34 of the developing cartridge includes a gear member 341 and a rotating member 342 mounted on the gear member 341. The gear member 341 is mounted at the left end of the agitating frame shaft 4. The gear member 341 includes a gear portion 341a formed on the outer circumference of the gear member 341 and a first engaging portion 341b formed on the inner wall of the gear member 341. The gear portion 341a is configured as a helical gear structure meshing with the coupling gear 11. The gear member 341 further includes a pair of engaging protrusions 341c extending inward from the inner wall of the gear member 341. The agitating frame shaft 4 is correspondingly provided with an engaging groove 4b at the left end. The engaging protrusions 341c cooperate with the engaging groove 4b so that the agitating frame shaft 4 can rotate following the gear member 341. The first engaging portion 341b is a plurality of protrusion structures provided on the inner circumference of the gear member 341, including a plurality of continuous protrusions extending in the left-right direction formed on the inner circumference of the gear member 341. The rotating member 342 is mounted at the left end of the transmission rod 5. The rotating member 342 includes a spiral groove 342a formed on the inner wall and a second engaging portion 342b formed on the outer circumference of the rotating member 342. The second engaging portion 342b is a plurality of protrusion structures provided on the outer circumference of the rotating member 342, including a plurality of continuous protrusions extending in the left-right direction formed on the outer circumference of the rotating member 342. The spiral groove 342a can mesh with a transmission protrusion 5a provided at the left end of the transmission rod 5. The transmission protrusion 5a can move in the spiral groove 342a. When the rotating member 342 rotates following the gear member 341, the axial force generated can force the transmission rod 5 to move in the left-right direction. Specifically, the transmission rod 5 has a first position and a second position. The transmission rod 5 in the first position is closer to the left end of the developing cartridge than the transmission rod 5 in the second position. That is to say, when the transmission rod 5 moves from the first position towards the second position, the whole transmission rod 5 moves from the left end towards the right end. When the transmission rod 5 is in the first position, the transmission protrusion 5a is coupled with the spiral groove 342a, and the transmission rod 5 can move to the right under the drive of the axial force generated by the spiral groove 342a. When the transmission rod 5 is in the second position, the transmission protrusion 5a of the transmission rod 5 disengages from the spiral groove 342a, and the transmission rod 5 stops moving. When the developing cartridge is a new developing cartridge, the transmission rod 5 is in the first position.The second engaging portion 342b can be engaged with the first engaging portion 341b of the gear member 341, so that the rotating member 342 can rotate together with the gear member 341. When the gear member 341 starts to rotate, the straight-edge portion of the first engaging portion 341b can be clamped on the corresponding straight-edge portion of the second engaging portion 342b. The rotating member 342 follows the gear member 341 to rotate along the detection direction. An elastic member 343 is further provided between the gear member 341 and the side wall of the driving side 10. The elastic member 343 can be set as a compression spring. The elastic member 343 applies a force to the gear member 341 in the left-right direction to force the gear member 341 to approach the rotating member 342, so that the first engaging portion 341b of the gear member 341 and the second engaging portion 342b of the rotating member 342 are engaged with each other. When the gear member 341 is kept from rotating and the gear member 341 is moved a certain distance toward the side wall of the driving side 10 under an external force, the first engaging portion 341b and the second engaging portion 342b can be disengaged. The rotating member 342 can rotate relative to the gear member 341 in the direction opposite to the detection direction under the action of an external force.

[0046] Furthermore, a reset portion 342c is further provided on the left end portion of the rotating member 342, and the reset portion 342c is constructed as a special-shaped groove. Furthermore, the special-shaped groove is preferably capable of cooperating with a reset tool having a matching shape. When the developer contained in the developing cartridge is exhausted, in order to save the cost of replacing the developing cartridge, the user can add developer to the developing cartridge to make the developing cartridge usable again. However, since the transmission rod 5 and the transmission component 23 are in the second position where they cannot move to the right and the toggle member 22 cannot be moved, the developing cartridge cannot be detected by the imaging device and cannot be used. Therefore, by providing the reset portion 342c on the rotating member 342, the user can use the reset tool to cooperate with the reset portion 342c to first move the gear member 341 so that the first meshing portion 341 b and the second engaging portion 342b disengage, and apply a force in the direction opposite to the detection direction to the rotating member 342 to rotate the rotating member 342 relative to the gear member 341 in the direction opposite to the detection direction, and simultaneously apply a force in the left-right direction toward the right end of the developing box. Under the joint force of the two, the transmission protrusion 5a enters the spiral groove 342a, and an axial force toward the left end of the developing box is generated through the engagement of the spiral groove 342a with the transmission protrusion 5a, so that the transmission protrusion 5a moves to the left side along the spiral groove 342a, driving the transmission rod 5 to gradually move from the right end to the left side, and the transmission rod 5 moves from the second position to the first position. The developing box can be detected by the imaging device again. At this point, the user has completed the resetting of the detection structure of the developing box. Furthermore, the driving side protective cover 19 of the developer box is also provided with an opening 19a, which is a through hole formed on the driving side protective cover 19, and the reset portion 342c of the rotating member 342 is exposed to the outside by the opening 19a, so that the user can directly use the reset tool and the reset portion 342c to achieve reset through the opening 19a without removing the driving side protective cover 19, which greatly reduces the difficulty of reset and reduces the reset time. It is worth mentioning that the structure of the reset portion is not limited, and can be the groove structure used in this embodiment, or it can be without a groove structure, and it can be a convexity or other shapes, as long as it can facilitate the reset of the rotating member.

[0047] like Figures 6 - 10As shown, the process of the developing box being detected by the detection body of the imaging device will be described in detail below. First, when the coupling gear 11 does not receive the driving force from the imaging device, the transmission rod 5 is in the first position. At this time, the transmission protrusion 5a of the transmission rod 5 is engaged with the spiral groove 342a of the rotating member 342. When the coupling gear 11 receives the driving force from the imaging device and is driven to rotate, the coupling gear 11 transmits the driving force to the gear member 341 of the stirring frame gear 34, and the driving gear member 341 starts to rotate, and drives the rotating member 342 to rotate. During the rotation process, the rotating member 342 generates a rotation through the engagement of the spiral groove 342a with the transmission protrusion 5a. A driving force is applied in the axial direction toward the right end, and the driving force can push the transmission rod 5 to move toward the right end. At the same time, after the transmission rod 5 starts to move, the transmission rod 5 pushes the transmission component 23 to move toward the right end, that is, the transmission component 23 gradually extends to the right in the left and right directions, and can move the toggle member 22. The toggle member 22 drives the detection body of the imaging device to move so that the developing box is detected. When the transmission rod 5 moves to the second position, the transmission protrusion 5a disengages from the spiral groove 342a and stops moving. At this point, the imaging device completes the entire detection process of the developing box.

[0048] The resetting action of the developing box after the detection of the detection body of the imaging device has been specifically and detailedly described above, and will not be repeated here.

[0049] [Example 3]

[0050] Next, Example 3 of the utility model will be introduced. This Example 3 shows a developing box. The developing box in this Example 3 is relative to the developing box in the above-mentioned Example 1. The two are the same in that the transmission rod is first pushed to move to the right by setting a spiral groove, and then the transmission rod pushes the transmission component 23 to move to force the transmission component 23 to shift the shifting member 22. The difference is that this Example 3 further improves the original detection structure of the developing box. Next, the improved detection structure will be described in detail.

[0051] The left and right sides of the housing 1 are provided with a first hole 17 and a second hole 27, which are through holes formed on the left and right side walls of the housing 1, respectively. The left and right sides of the stirring frame shaft 4 pass through the first hole 17 and the second hole 27, respectively, and are rotatably supported in the housing 1. The stirring frame shaft 4 is provided as a hollow structure with openings on both sides. In order to reduce the volume of the stirring frame shaft 4, the stirring frame shaft 4 is generally provided as a columnar structure with a rectangular cross section. Figures 11 - 14As shown, the developing cartridge further includes a transmission assembly 5. The transmission assembly 5 includes a transmission rod 51, an intermediate member 52, and a reset member 53. Among them, the transmission rod 51 is disposed in the stirring frame shaft 4 and passes through the openings on both sides of the stirring frame shaft 4. Specifically, the transmission rod 51 is coaxially disposed with the stirring frame shaft 4 and can move in the left-right direction relative to the stirring frame shaft 4. The length of the transmission rod 51 is greater than the length of the stirring frame shaft 4, so that both sides of the transmission rod 51 protrude outside the stirring frame shaft 4. A receiving groove 51a is formed by inward depression at the end of the transmission rod 51 near the driving side 10. The intermediate member 52 is installed in the receiving groove 51a. The intermediate member 52 includes an elastic arm 52b that bends and extends and a transmission protrusion 52a provided at one end of the elastic arm 52b. A through hole 51b is formed on the outer circumferential surface of the transmission rod 51. The through hole 51b communicates with the receiving groove 51a. The through hole 51b is correspondingly disposed with the transmission protrusion 52a, so that the transmission protrusion 52a can be exposed outside the transmission rod 51 through the through hole 51b. The stirring frame gear 14 includes a spiral groove 14b coupled with the transmission protrusion 52a. The transmission protrusion 52a disposed in the spiral groove 14b can cooperate with the spiral groove 14b. When the stirring frame gear 14 rotates following the axial force generated by the coupling gear 11, it can force the intermediate member 52 to drive the transmission rod 51 to move in the left-right direction. Specifically, the transmission rod 51 has a first position and a second position. The transmission rod 51 in the first position is closer to the left end of the developing cartridge than the transmission rod 51 in the second position. That is to say, when the transmission rod 51 moves from the first position to the second position, the entire transmission assembly 5 moves from the left end to the right end. When the transmission rod 51 is in the first position, the transmission protrusion 52a is coupled with the spiral groove 14b, and the transmission rod 51 can move to the right under the drive of the axial force generated by the spiral groove 14b. When the transmission rod 51 is in the second position, the transmission protrusion 52a of the transmission rod 51 disengages from the spiral groove 14b, and the transmission rod 51 stops moving. When the developing cartridge is a new developing cartridge, the transmission rod 51 is in the first position.

[0052] As Figure 13 and 14As shown, further, the reset member 53 is configured as a roughly cylindrical structure, which matches the structure of the receiving groove 51a. The reset member 53 is at least partially arranged in the receiving groove 51a and can move between the insertion position and the extraction position relative to the transmission rod 51. When the reset member 53 is in the insertion position, the reset member 53 abuts against the elastic arm 52b of the intermediate member 52, so that the elastic arm 52b abuts against the inner wall of the receiving groove 51a. At this time, the transmission protrusion 52a is exposed outside the transmission rod 51 through the through hole 51b, and the transmission protrusion 52a can cooperate with the spiral groove 14b. When the developer contained in the developing box is exhausted, in order to save the cost of replacing the developing box, the user can add developer to the developing box so that the developing box can be used again. However, since the transmission rod 51 is in the second position where it cannot move to the right and cannot be turned, the developing box cannot be detected by the imaging device and cannot be used. Therefore, the user can use the reset member 53 to reset the transmission rod 51 to the first position, first rotate the stirring frame gear 14 to reset the stirring frame gear 14 to the predetermined initial position, and then pull out the reset member 53 to move the reset member 53 from the inserted position to the pulled-out position. At this time, the reset member 53 is out of contact with the elastic arm 52b of the intermediate member 52, the elastic arm 52b rebounds, the transmission protrusion 52a is retracted to the receiving groove 51a and can be disengaged from the spiral groove 14b, and then, the transmission rod 51 is pushed to the left and the transmission rod 51 is moved from the second position to the first position. Finally, the reset member 53 is reinserted into the receiving groove 51a so that the reset member 53 is in the inserted position, the transmission protrusion 52a can enter the spiral groove 14b and cooperate with the spiral groove 14b, and the developing box can be detected by the imaging device again. At this point, the user has completed the resetting of the detection structure of the developing box. The reset member 53 greatly reduces the difficulty of resetting and reduces the resetting time.

[0053] Beneficial Effects

[0054] After adopting the above technical solution, a new developer box detection component is provided, which adopts a spiral groove structure design to transmit driving force, so that the transmission component can move in the left and right directions. Compared with the existing gear transmission structure, it has a smaller space. Therefore, the developer box can be made thinner and smaller.

[0055] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A developing box, comprising: A housing extending in the left-right direction; A developing roller, supported by the housing and rotatable about a developing roller axis extending in the left-right direction; A coupling gear, located on the left side of the housing in the left-right direction, and capable of receiving a driving force from outside the developing box to rotate; a stirring frame configured to rotate according to the rotation of the coupling gear, and having a stirring frame shaft extending in the left-right direction; The developing box further comprises a transmission rod and a toggle member, wherein the transmission rod can move relative to the stirring frame shaft in the left-right direction in response to the rotation of the coupling gear, and the toggle member can move according to the movement of the transmission rod, and the transmission rod is coaxially arranged with the stirring frame shaft; The stirring frame shaft is configured as a hollow structure with openings at both ends, and the transmission rod is disposed in the stirring frame shaft and passes through the openings at both ends.

2. The developing cartridge according to claim 1, wherein: In the left-right direction, the length of the transmission rod is greater than the length of the stirring frame shaft, so that two sides of the transmission rod protrude outside the stirring frame shaft.

3. The developing cartridge according to claim 1, wherein: It also includes a rotating member, which is arranged on the left side of the shell in the left-right direction, and can rotate according to the rotation of the coupling gear, and the rotating member is coaxially arranged with the transmission rod.

4. The developing cartridge according to claim 3, wherein: The rotating member includes a spiral groove, and one end of the transmission rod has a transmission protrusion. The spiral groove can cooperate with the transmission protrusion to enable the transmission rod to move in the left-right direction.

5. The developing cartridge according to claim 3, wherein: A restoring portion is arranged at the left end of the rotating member, and the restoring portion is configured as a special-shaped groove.

6. The developing cartridge according to claim 1, wherein: The invention also includes a sealing component. A side wall of the stirring frame shaft is provided with an air avoidance groove extending in the left-right direction. The sealing component can seal the air avoidance groove.

7. The developing cartridge according to claim 1, wherein: The end of the transmission rod is recessed inward to form a receiving groove, and the intermediate piece is installed in the receiving groove. The intermediate piece includes a bent and extended elastic arm and a transmission protrusion arranged on one end of the elastic arm. A through hole is formed on the outer circumferential surface of the transmission rod, and the through hole is connected to the receiving groove. The through hole and the transmission protrusion are arranged correspondingly so that the transmission protrusion can be exposed outside the transmission rod through the through hole.

8. The developing cartridge according to claim 1, wherein: It also includes a stirring frame gear, which can rotate following the rotation of the coupling gear, the rotating member can rotate according to the rotation of the stirring frame gear, the stirring frame gear can drive the stirring frame to rotate, and the stirring frame gear is coaxially arranged with the transmission rod.

9. The developing cartridge according to claim 8, wherein: It also includes an elastic member, which is arranged between the rotating member and the stirring frame gear in the left and right direction. The rotating member has a first meshing portion, and the stirring frame gear has a second meshing portion. The first meshing portion can engage and disengage with the second meshing portion in the left and right direction under the action of the elastic member.

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