CN218003926U - Developing box - Google Patents

Abstract

A developing box comprises a shell, a driving wheel and a detected piece, wherein the driving wheel receives driving force to drive the detected piece to rotate around a first axis; the shell is provided with a guide part around the first axis, the detected part moves along the guide part in the rotating process so that the detected part moves towards the direction close to or away from the shell, and the elastic part can deform after being stressed so that the detection part moves or deflects towards the direction close to the shell, so that the installation or the removal of the developing box is facilitated, and the detected part is prevented from being damaged due to interference with imaging equipment.

Description

Developing box

[ technical field ] A method for producing a semiconductor device

The utility model relates to an electrophotographic imaging device technical field especially relates to a developing box.

[ background of the invention ]

An existing electrophotographic image forming apparatus, such as a laser printer, includes a developing cartridge detachably mounted in the electrophotographic image forming apparatus. In order to determine specific information such as the type, capacity, and old/new of the developing cartridge, the electrophotographic image forming apparatus is generally provided with a detecting mechanism, and the detecting mechanism can be analyzed based on information such as the number of times the detecting mechanism is touched by the developing cartridge and the time interval.

In a known developing cartridge, a mechanism to be detected and an end cap for covering the mechanism to be detected are generally provided on a side wall of the developing cartridge. To facilitate the mechanism to be detected to touch the detection mechanism during detection of the developer cartridge, at least a portion of the mechanism to be detected is typically disposed projecting out of the end cap.

However, in the process of mounting or dismounting the developing cartridge in or from the electrophotographic image forming apparatus, the portion of the mechanism to be detected protruding outside the end cap easily interferes with other components provided in the electrophotographic image forming apparatus, which is disadvantageous to mounting or dismounting of the developing cartridge, and causes the mechanism to be detected to be easily damaged.

[ Utility model ] content

The present application provides a developing cartridge which is advantageous for mounting or dismounting of the developing cartridge and which prevents a mechanism to be detected from being damaged due to interference with an electrophotographic apparatus in order to overcome the above-mentioned drawbacks.

In a first aspect, an embodiment of the present application provides a developing cartridge, including a casing, a driving wheel and a detected member, where the driving wheel receives a driving force to drive the detected member to rotate around a first axis, the detected member includes a detecting portion, an elastic portion and a mounting portion, the mounting portion is rotatably disposed on the casing, and the elastic portion is connected between the detecting portion and the mounting portion; the shell is provided with a guide piece around the first axis, and the detected piece moves along the guide piece in the rotating process so as to move the detected piece towards or away from the shell.

In combination with the first aspect, in some embodiments, the housing includes first and second end walls opposing in the first direction, the guide member is disposed at the first end wall, and the mounting portion is rotatably disposed at the first end wall; the developing box further comprises an end cover, the end cover is arranged on the first end wall to cover the driving wheel and the detected piece, an opening is formed in the end cover in a penetrating mode, and at least part of the detection portion extends out of the opening.

With reference to the first aspect, in some embodiments, the detected member further includes an abutting portion, the abutting portion is connected to the mounting portion, and the abutting portion abuts against a front end face of the guide member facing away from the first end wall.

With reference to the first aspect, in some embodiments, the front face comprises a first surface and a second surface that are successively connected in series; when the abutting portion abuts against the first surface, the detection portion retracts from the opening; when the abutting portion abuts against the second surface, at least a part of the detection portion protrudes from the opening.

In combination with the first aspect, in some embodiments, the first surface is a slope or a curved surface, and a distance between the first surface and the first end wall gradually increases along a direction approaching the second surface.

In combination with the first aspect, in some embodiments, the front face further includes a third surface connected between the first surface and the second surface; the third surface is an inclined surface or a curved surface, and the distance between the third surface and the first end wall gradually increases along the direction close to the second surface.

With reference to the first aspect, in some embodiments, the developing cartridge further includes an elastic member disposed between the end cap and the detected member; when the abutting part abuts against the second surface, the elastic piece is in a stretching or compressing state.

With reference to the first aspect, in some embodiments, the front end face further includes a fourth surface connected to an end of the second surface away from the first surface; when the abutting portion abuts against the fourth surface, the detection portion retracts from the opening.

In combination with the first aspect, in some embodiments, the fourth surface is a slope or a curved surface, and a distance between the fourth surface and the first end wall gradually decreases in a direction away from the second surface.

In combination with the first aspect, in some embodiments, the front face further comprises a fifth surface connected between the second surface and the fourth surface; the fifth surface is an inclined surface or a curved surface, and the distance between the fifth surface and the first end wall is gradually decreased along the direction away from the second surface.

In a second aspect, an embodiment of the present application provides a developing cartridge, including a housing, a driving wheel and a detected member, wherein the driving wheel receives a driving force to drive the detected member to rotate around a first axis, and the developing cartridge further includes a supporting member and a guiding member; the housing includes first and second end walls opposing in a first direction and a side wall connected between the first and second end walls; the guide piece is arranged on the first end wall around the first axis, the detected piece moves along the guide piece in the rotating process so as to enable the detected piece to move towards the direction close to or far away from the shell, and the guide piece is provided with an avoidance opening close to the first end wall; the support piece comprises a connecting portion, a bending portion and a supporting portion, wherein the connecting portion is arranged on the side wall, one end of the bending portion is connected with the connecting portion, the other end of the bending portion penetrates through the avoiding opening to be connected with the supporting portion, and the central axis of the supporting portion coincides with the first axis.

With reference to the second aspect, in some embodiments, the support member further includes a plug portion extending from the connecting portion to a direction close to the side wall, the side wall is provided with a plug hole, and the plug portion is plugged in the plug hole.

With reference to the second aspect, in some embodiments, the sidewall is formed with a plug portion in a protruding and extending manner, and the connecting portion is provided with a plug hole, and the plug portion is plugged in the plug hole.

In a third aspect, an embodiment of the present application provides a developing cartridge, including a housing, a driving wheel, and a detected member, where the detected member includes a transmission portion and a detection portion, the transmission portion is in transmission connection with the driving wheel, the driving wheel receives a driving force and rotates around a first axis, and the driving wheel drives the transmission portion to rotate around a second axis, so that the detection portion moves toward or away from the housing, and the second axis is arranged to intersect with the first axis.

With reference to the third aspect, in some embodiments, the developing cartridge further includes an end cap connected to the casing to cover the driving wheel and the detected member, the end cap having an opening provided therethrough, and the detection portion being protrudable from the opening.

With reference to the third aspect, in some embodiments, the detected member has a first position, a second position, and a third position; when the detected piece is at the first position, the detection part retracts from the opening; when the detected piece is at the second position, the detection part extends out of the opening; when the detected member is at the third position, the detecting portion retracts from the opening.

With reference to the third aspect, in some embodiments, the developing cartridge further includes a supporting member disposed on the casing or the end cap, the supporting portion extends along the second axis, and the transmission portion is rotatably sleeved on an outer circumference of the supporting member.

With reference to the third aspect, in some embodiments, the drive wheel includes a drive portion and a transmission portion that receives the drive force for rotation about the first axis; the driving part and the transmission part are both conical wheels, and the driving part and the transmission part are tightly attached to rub so that the transmission part rotates under the action of friction force.

With reference to the third aspect, in some embodiments, the outer periphery of the driving portion is provided with a friction layer, and the outer periphery of the transmission portion is provided with a friction layer; or the periphery of the driving part is provided with a friction layer, and the peripheral surface of the transmission part is a rough surface; or the peripheral surface of the driving part is a rough surface, and the periphery of the transmission part is provided with a friction layer.

With reference to the third aspect, in some embodiments, the friction layer is made of rubber or asbestos.

With reference to the third aspect, in some embodiments, the outer circumferential surface of the driving portion is a rough surface, and the outer circumferential surface of the transmission portion is a rough surface.

With reference to the third aspect, in some embodiments, the drive wheel includes a drive portion and a transmitting portion that receives the drive force for rotation about the first axis; the driving part and the transmission part are both bevel gears, and the driving part is meshed with the transmission part.

With reference to the third aspect, in some embodiments, the driving wheel is provided with a plurality of protrusions at intervals around the first axis, the transmission part is provided with a plurality of grooves around the second axis, and any one of the protrusions can be inserted into any one of the grooves; or the driving wheel is provided with a plurality of grooves at intervals around the first axis, the transmission part is provided with a plurality of bulges around the second axis, and any bulge can be inserted into any groove.

In a fourth aspect, the embodiment of the application provides a developing box, detachably sets up in imaging device, imaging device is provided with detection mechanism, developing box includes the casing, the drive wheel with detect the piece, the drive wheel receives drive power and is detected a rotation around first axis in order to drive, developing box still includes end cover and elastic component, the end cover is connected with the casing and is detected piece and drive wheel with the cladding, and the end cover link up and is provided with the opening, at least part that is detected the piece can stretch out from the opening in order to contact with detection mechanism, the elastic component sets up in the end cover with detect between the piece.

With reference to the fourth aspect, in some embodiments, the detected member includes a detecting portion and a transmission portion, wherein the transmission portion is in transmission connection with the driving wheel, and the detecting portion is provided with a notch so that the detecting portion can be separated from contact with the detecting mechanism; when the detection part is contacted with the detection mechanism, the detection mechanism moves from the detection position to the non-detection position; when the detection unit is out of contact with the detection mechanism, the detection mechanism moves from the non-detection position to the detection position.

In combination with the fourth aspect, in some embodiments, the drive wheel includes a drive portion and a transmission portion spaced along the first axis, the transmission portion receiving the drive force for rotation about the first axis; the transmission part comprises a first driven part and a second driven part which are arranged along the first axis at intervals, the first driven part is in transmission connection with the driving part, and the second driven part is in transmission connection with the transmission part.

With reference to the fourth aspect, in some embodiments, the outer diameter of the transmission portion is greater than the outer diameter of the driving portion, and the outer diameter of the first driven portion is greater than the outer diameter of the second driven portion.

With reference to the fourth aspect, in some embodiments, the driving portion and the transmitting portion are both of a gear structure, and the first driven portion and the second driven portion are both of a gear structure with missing teeth.

With reference to the fourth aspect, in some embodiments, the detected member has a first position, a second position, and a third position; when the detected piece is at the first position, the detection part is contacted with the detection mechanism, the first driven part is disengaged from the driving part, and the second driven part is engaged with the transmission part; when the detected piece is at the second position, the detection part is contacted with the detection mechanism, the first driven part is meshed with the driving part, and the second driven part is disengaged from the transmission part; when the detected piece is at the third position, the detection part is separated from the detection mechanism, the first driven part is separated from the driving part, and the second driven part is separated from the transmission part.

With reference to the fourth aspect, in some embodiments, the developing cartridge further includes a pressing member disposed next to the detected member.

With reference to the fourth aspect, in some embodiments, the material of the detected member may be any one of rubber, silica gel, or high-density sponge.

After adopting above-mentioned technical scheme, beneficial effect is:

compared with the prior art, the utility model provides an in the developing box, because the detection part passes through the elasticity portion and is connected with the installation department, the in-process that perhaps unloads in imaging device is installed in imaging device at the developing box, if other parts in detection part and the imaging device take place the contact, the elasticity portion can take place deformation after the atress, so that the detection part removes or deflects to the direction that is close to the casing, and then make other parts in detection part and the imaging device break away from the contact, be favorable to the installation of developing box or lift off, avoided being detected the piece because of taking place to interfere with imaging device and appear damaging.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural view of a developing cartridge provided in embodiment 1 of the present application.

Fig. 2 is a partially exploded view of the developing cartridge shown in fig. 1.

Fig. 3 is a partially enlarged schematic view of the developing cartridge shown in fig. 2 at a.

Fig. 4 is a schematic view of the structure of the member to be detected in the developing cartridge shown in fig. 2.

Fig. 5 is an exploded view of the detected member shown in fig. 4.

Fig. 6 is a schematic view showing the fitting relationship between the detected member and the guide member in the developing cartridge shown in fig. 2.

Fig. 7 is a schematic view showing another fitting relationship of the detected member and the guide member in the developing cartridge shown in fig. 2.

Fig. 8 is an exploded schematic view of a developing cartridge provided in embodiment 2 of the present application.

Fig. 9 is a schematic view showing the fitting relationship of the detected member and the guide member in the developing cartridge shown in fig. 8.

Fig. 10 is a partial structural schematic view of the developing cartridge shown in fig. 8.

FIG. 11 is an enlarged partial view of the developing cartridge shown in FIG. 10, taken from the perspective of B, after the elastic member and the member to be detected are removed.

Fig. 12 is a partially enlarged view at B of the developing cartridge shown in fig. 10 after the elastic member, the detected member and the supporting member are removed.

Fig. 13 is a schematic structural view of a developing cartridge provided in embodiment 3 of the present application.

Fig. 14 is a partially exploded view of the developing cartridge shown in fig. 13.

Fig. 15 is a schematic view of another angle of the developing cartridge shown in fig. 13.

Fig. 16 is a schematic structural view of an end cap in the developing cartridge shown in fig. 14.

Fig. 17 is a schematic view showing the fitting relationship of the detected member and the driving wheel in the developing cartridge shown in fig. 13.

Fig. 18 is a schematic view showing another fitting relationship of the detected member and the driving wheel in the developing cartridge shown in fig. 13.

Fig. 19 is a schematic view showing a fitting relationship between a detected member and an end cap in the developing cartridge shown in fig. 13.

Fig. 20 is an exploded view of the detected member and the end cap shown in fig. 19.

Fig. 21 is a schematic structural view of the end cap shown in fig. 20.

Fig. 22 is a schematic structural view of a developing cartridge provided in embodiment 4 of the present application.

Fig. 23 is a partially exploded view of the developing cartridge shown in fig. 22.

Fig. 24 is a schematic view showing the fitting relationship between the member to be detected and the detection mechanism in the developing cartridge shown in fig. 23.

Fig. 25 is a schematic view of the structure of the detected member and the detecting mechanism shown in fig. 24 at another angle.

Fig. 26 is a schematic view showing another fitting relationship of the member to be detected and the detecting mechanism in the developing cartridge shown in fig. 23.

Fig. 27 is a schematic view of another angle structure of the detected member and the detecting mechanism shown in fig. 26.

Fig. 28 is a schematic view showing still another fitting relationship of the member to be detected and the detecting mechanism in the developing cartridge shown in fig. 23.

Fig. 29 is a schematic view of another angle between the detected member and the detecting mechanism shown in fig. 28.

Fig. 30 is a schematic view showing the fitting relationship between the detected member and the driving wheel in the developing cartridge shown in fig. 23.

Fig. 31 is a schematic view showing another fitting relationship of the detected member and the driving wheel in the developing cartridge shown in fig. 23.

FIG. 32 is a schematic view showing still another fitting relationship between the detected member and the driving wheel in the developing cartridge shown in FIG. 23

Fig. 33 is a schematic view showing still another fitting relationship of the detected member and the driving wheel in the developing cartridge shown in fig. 23.

Reference numerals:

100-a developing cartridge;

1-a shell;

11 a-a first end wall; 11 b-a second end wall; 11c — a first sidewall; 11 d-a second side wall; 12 a-a first barrier; 12 b-a second barrier; 13-a plug-in part; 131-a connecting rod; 132-a snap-fit projection; 14-mounting grooves; 15-mounting a post;

2-a power assembly;

21-a driving force receiving member; 211-a driving force receiving portion; 212-a first gear portion; 22-developing roller gear; 23-supply roller gear; 24-a drive wheel; 241-a driving part; 242-a transmitting portion; 25-an idler pulley; 251-a second gear portion; 252-a third gear section;

3-the detected piece;

31-a mounting portion; 311-a first positioning column; 32-a detection section; 320-a second positioning column; 321-a first link; 322-a second link; 323-gap; 33-an elastic portion; 34-an abutment; 35-a transmission part; 351-a first driven portion; 352-a second driven part;

4-end cover;

41-opening; 42-a through hole;

5-a developing roller;

6-a guide;

61-a first surface; 62-a second surface; 63-a third surface; 64-a fourth surface; 65-a fifth surface; 66-avoidance port;

7-a support;

71-a connecting part; 72-a bending part; 73-a support portion;

8-an elastic member;

9-a compression member;

200-a detection mechanism;

210-a rotating member;

2101-an abutment; 2102-a sensing portion;

220-a sensing element.

[ detailed description ] embodiments

For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.

It should be understood that the embodiments described are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship.

In the existing developing cartridge, a detected mechanism and an end cover for covering the detected mechanism are generally disposed on a side wall of the developing cartridge, and the developing cartridge is detachably disposed in an image forming apparatus in which the detecting mechanism is disposed. And analyzing according to the information such as the number of times and time interval of the detection mechanism touched by the detection mechanism to judge the specific information such as the model, the capacity and the old and new of the developing box.

To facilitate the mechanism to be detected to touch the detection mechanism during detection of the developer cartridge, at least a portion of the mechanism to be detected is typically disposed projecting out of the end cap. However, in the process of mounting or dismounting the developing cartridge in or from the image forming apparatus, the portion of the detected mechanism protruding out of the end cap easily interferes with other components arranged in the image forming apparatus, which is not favorable for mounting or dismounting the developing cartridge, and the detected mechanism is easily damaged.

In order to solve the above technical problem, embodiments of the present application provide a developing cartridge, which facilitates installation or removal of the developing cartridge, and avoids damage of a detected mechanism due to interference with an electrophotographic apparatus.

Hereinafter, for the convenience of understanding of the specification, the width direction of the developing cartridge 100 is previously set to the X-axis direction shown in fig. 1, the length direction of the developing cartridge 100 is previously set to the Y-axis direction, the height direction of the developing cartridge 100 is previously set to the Z-axis direction, and the X-axis, the Y-axis, and the Z-axis shown in fig. 1 are perpendicular to each other.

Example 1

Referring to fig. 1 and 2, an embodiment of the present application provides a developing cartridge 100, which at least includes a housing 1, a driving wheel 24 and a detected member 3, wherein the driving wheel 24 receives a driving force to drive the detected member 3 to rotate around a first axis L1.

Specifically, the developing cartridge 100 is detachably provided in an image forming apparatus provided with a driving mechanism (not shown in the figure) and a detecting mechanism 200 (not shown in the figure). When the developing cartridge 100 is mounted in the image forming apparatus, the driving mechanism may transmit the driving force to the driving wheel 24 so that the driving wheel 24 may rotate the detected member 3 about the first axis L1. During the rotation of the detected member 3 around the first axis L1, the detected member 3 can drive the detected mechanism 200 to move between the detection position and the non-detection position, so as to detect the developing cartridge 100, and determine whether the developing cartridge 100 is new or whether the developer stored in the developing cartridge 100 has a capacity.

The housing 1 includes a first end wall 11a and a second end wall 11b opposed in a first direction, wherein the first direction is parallel to the Y-axis direction, and the first direction is toward a negative direction of the Y-axis. The developing roller 5, the supply roller (not shown in the figure), and the stirring member (not shown in the figure) are disposed at intervals in the housing 1 in sequence along a second direction, and the developing roller 5, the supply roller, and the stirring member are rotatably connected between the first end wall 11a and the second end wall 11b, respectively, wherein the second direction is parallel to the X-axis direction, and the second direction is toward the negative direction of the X-axis.

A housing 1 is provided therein with a storage compartment for storing developer, the developer in the storage compartment can be agitated by rotation of an agitating member, a supply roller can transfer the developer in the storage compartment to the developing roller 5, and a photosensitive drum (not shown) provided in the image forming apparatus can receive the developer from the surface of the developing roller 5, thereby converting an electrostatic latent image formed on the surface of the photosensitive drum into a visible developer image and transferring the visible developer image to the surface of a printing medium.

With continued reference to fig. 2, the developing cartridge 100 further includes a power assembly 2, by which the developing roller 5, the supply roller, the stirring member and the detected member 3 can be driven to rotate by the power assembly 2.

Specifically, the power assembly 2 includes a driving force receiver 21, a developing roller gear 22, a supply roller gear 23, an agitating member gear, and an idler gear 25, wherein the driving force receiver 21 and the idler gear 25 are rotatably provided on the first end wall 11a, the developing roller gear 22 is provided on an end portion of the shaft of the developing roller 5 extending out of the first end wall 11a, the supply roller gear 23 is provided on an end portion of the shaft of the supply roller extending out of the first end wall 11a, and the agitating member gear is provided on an end portion of the shaft of the agitating member extending out of the first end wall 11a.

The driving force receiving part 21 includes a driving force receiving portion 211 and a first gear portion 212 arranged at an interval in the first direction, wherein the driving force receiving portion 211 is configured to receive a driving force from the driving mechanism to rotate the first gear portion 212. The first gear portion 212 is respectively meshed with the developing roller gear 22, the supply roller gear 23, and the idle gear 25 is also gear-meshed with the stirring member, so that the driving force receiver 21 can rotate the developing roller 5, the supply roller, and the stirring member.

In some embodiments, the driving wheel 24 may be a stirring member gear, and the driving wheel 24 is engaged with the detected member 3.

Specifically, the idle gear 25 includes a second gear part 251 and a third gear part 252 spaced apart in the first direction, the driving wheel 24 includes a driving part 241 and a transmitting part 242 spaced apart in the first direction, and the driving part 241 and the transmitting part 242 are both of a gear structure. The second gear unit 251 meshes with the first gear unit 212, the third gear unit 252 meshes with the transmission unit 242, and the driving unit 241 meshes with the detection object 3.

In other embodiments the drive wheel 24 may additionally be provided separately, i.e. the stirring member gear and the drive wheel 24 are two separate parts, the drive wheel 24 may be in mesh with the stirring member gear or idler wheel 25.

Referring to fig. 3 to 5, the detected member 3 includes a detecting portion 32, an elastic portion 33 and a mounting portion 31, the mounting portion 31 is rotatably disposed on the housing 1, and the elastic portion 33 is connected between the detecting portion 32 and the mounting portion 31.

Specifically, the developing cartridge 100 further includes a support 7, the support 7 protruding from the first end wall 11a and having a cylindrical structure, and a central axis of the support 7 coincides with the first axis L1. The mounting portion 31 is rotatably disposed on the outer periphery of the supporting member 7, that is, the mounting portion 31 is rotatably disposed on the first end wall 11a, and the detecting portion 32 is in an arc structure.

When the detecting portion 32 comes into contact with other components disposed in the image forming apparatus, the elastic portion 33 may deform to move or deflect the detecting portion 32 in a direction close to the first end wall 11a, so that the detecting portion 32 is out of contact with other components disposed in the image forming apparatus, which is beneficial to mounting or dismounting the developing cartridge 100, and damage to the detected member 3 due to interference between the detecting portion 32 and the image forming apparatus is avoided.

In some embodiments, a first positioning post 311 is formed on a surface of the mounting portion 31 close to the detecting portion 32 in a protruding and extending manner, a second positioning post 320 is formed on a surface of the detecting portion 32 close to the mounting portion 31 in a protruding and extending manner, one end of the elastic portion 33 is sleeved on an outer periphery of the first positioning post 311, and the other end of the elastic portion 33 is sleeved on an outer periphery of the second positioning post 320.

Specifically, the elastic portion 33 may be a spring, a plate spring, a rubber block, or any other component having elasticity, and is not limited herein. In the present embodiment, the elastic portion 33 may be a spring.

In other embodiments, a first positioning hole (not shown) is formed in a recessed surface of the mounting portion 31 close to the detecting portion 32, a second positioning hole (not shown) is formed in a recessed surface of the detecting portion 32 close to the mounting portion 31, one end of the elastic portion 33 is inserted into the first positioning hole, and the other end of the elastic portion 33 is inserted into the second positioning hole.

In still other embodiments, a first positioning column 311 is formed by protruding and extending the surface of the mounting portion 31 close to the detecting portion 32, a second positioning hole is formed by recessing the surface of the detecting portion 32 close to the mounting portion 31, one end of the elastic element 8 is sleeved on the periphery of the first positioning column 311, and the other end of the elastic element 8 is inserted into the second positioning hole; or, a first positioning hole is formed in a concave surface of the mounting portion 31 close to the detecting portion 32, a second positioning column 320 is formed in a convex and extending surface of the detecting portion 32 close to the mounting portion 31, one end of the elastic portion 33 is inserted into the first positioning hole, and the other end of the elastic portion 33 is sleeved on the periphery of the second positioning column 320.

It is understood that the elastic portion 33 may be connected to the mounting portion 31 and/or the detecting portion 32 by adhesion, welding, integral molding, or the like.

With continuing reference to fig. 4 and 5, the detected object 3 further includes a transmission portion 35, the transmission portion 35 is disposed on the outer periphery of the mounting portion 31 around the first axis L1, and the transmission portion 35 is in transmission connection with the driving wheel 24.

Specifically, the transmission part 35 is a gear structure with missing teeth, that is, the transmission part 35 includes a toothed part (not shown) and a non-toothed part (not shown), and the toothed part can be meshed with the driving part 241.

With continued reference to fig. 2 to 5, the developing cartridge 100 further includes an end cap 4, the end cap 4 is disposed on the first end wall 11a to cover the driving wheel 24 and the detected member 3, the end cap 4 is disposed with an opening 41 and a through opening 42, at least a portion of the detecting portion 32 protrudes from the opening 41, and at least a portion of the driving force receiving portion 211 protrudes from the through opening 42. The shape of the opening 41 includes, but is not limited to, "C" shape, annular shape, arcuate shape, and the like.

The housing 1 is provided with a guide 6 around the first axis L1, and the detected member 3 moves along the guide 6 during rotation to move the detected member 3 in a direction to approach or separate from the housing 1, that is, the detecting portion 32 can protrude from the opening 41 to contact the detecting mechanism 200 or retract from the opening 41.

Specifically, the guide 6 is disposed on the first end wall 11a, and the detected member 3 further includes an abutting portion 34, the abutting portion 34 is connected to the mounting portion 31, and the abutting portion 34 abuts against a front end surface of the guide 6 facing away from the first end wall 11a. During the rotation of the detection object 3 around the first axis L1, the abutting portion 34 may move along the trajectory of the front end surface, so that the detection portion 32 moves in a direction approaching or separating from the first end wall 11a.

With continued reference to fig. 3, 6 and 7, the front face includes a first surface 61 and a second surface 62 that are continuously connected in series. When the abutting portion 34 abuts against the first surface 61, the detecting portion 32 is retracted from the opening 41; when the abutting portion 34 abuts with the second surface 62, at least a portion of the detection portion 32 protrudes from the opening 41.

In some embodiments, the first surface 61 is a slope or a curved surface, and the distance between the first surface 61 and the first end wall 11a gradually increases along a direction approaching the second surface 62. The second surface 62 may be a plane, an inclined surface, a curved surface, etc., and is not limited thereto.

Specifically, in the initial state, the abutting portion 34 abuts against the end of the first surface 61 away from the second surface 62, at this time, the toothed portion engages with the driving portion 241, the detection portion 32 is retracted from the opening 41, that is, the distance between the end of the detection portion 32 away from the first end wall 11a and the first end wall 11a is smaller than or equal to the distance between the opening 41 and the first end wall 11a, so that the detection portion 32 does not interfere with the image forming apparatus during the process of mounting the developing cartridge 100 in the image forming apparatus; when the detected member 3 rotates around the first axis L1, the abutting portion 34 moves to the second surface 62 along the first surface 61, and at this time, the detecting portion 32 extends from the opening 41, that is, the distance between the end of the detecting portion 32 far away from the first end wall 11a and the first end wall 11a is greater than the distance between the opening 41 and the first end wall 11a, so that the detecting portion 32 can contact the detecting mechanism 200 and drive the detecting mechanism 200 to move from the non-detecting position to the detecting position; as the detected member 3 continues to rotate around the first axis L1, the detecting portion 32 is out of contact with the detecting mechanism 200, the detecting mechanism 200 moves from the detecting position to the non-detecting position, at this time, the toothed portion is out of engagement with the driving portion 241, the detected member 3 no longer rotates along with the driving wheel 24, and when the developing cartridge 100 needs to be removed from the image forming apparatus, if the detecting portion 32 comes into contact with other components provided in the image forming apparatus, the elastic portion 33 can deform, so that the detecting portion 32 moves or deflects in a direction close to the first end wall 11a, and interference between the detecting portion 32 and the image forming apparatus is avoided.

In other embodiments, the front face further comprises a third surface 63, the third surface 63 being connected between the first surface 61 and the second surface 62; the third surface 63 is a slope or a curved surface, and the distance between the third surface 63 and the first end wall 11a gradually increases along the direction approaching the second surface 62. The first surface 61 and/or the second surface 62 may be a plane, an inclined surface, a curved surface, or the like, which is not limited herein.

Specifically, in the initial state, the abutting portion 34 abuts against the first surface 61, at this time, the toothed portion engages with the driving portion 241, the detection portion 32 is retracted from the opening 41, that is, the distance between the end of the detection portion 32 away from the first end wall 11a and the first end wall 11a is smaller than or equal to the distance between the opening 41 and the first end wall 11a, so that the detection portion 32 does not interfere with the image forming apparatus during the process of mounting the developing cartridge 100 in the image forming apparatus; when the detected member 3 rotates around the first axis L1, the abutting portion 34 moves to the second surface 62 along the third surface 63, and at this time, the detecting portion 32 extends from the opening 41, that is, the distance between the end of the detecting portion 32 far away from the first end wall 11a and the first end wall 11a is greater than the distance between the opening 41 and the first end wall 11a, so that the detecting portion 32 can contact the detecting mechanism 200 and drive the detecting mechanism 200 to move from the non-detecting position to the detecting position; as the detected member 3 continues to rotate around the first axis L1, the detecting portion 32 is out of contact with the detecting mechanism 200, the detecting mechanism 200 moves from the detecting position to the non-detecting position, at this time, the toothed portion is out of engagement with the driving portion 241, the detected member 3 no longer rotates along with the driving wheel 24, and when the developing cartridge 100 needs to be removed from the image forming apparatus, if the detecting portion 32 comes into contact with other components provided in the image forming apparatus, the elastic portion 33 can deform, so that the detecting portion 32 moves or deflects in a direction close to the first end wall 11a, and interference between the detecting portion 32 and the image forming apparatus is avoided.

Further, with continued reference to fig. 2, the developing cartridge 100 further includes an elastic member 8, the elastic member 8 is disposed between the end cap 4 and the detected member 3; when the abutment 34 abuts the second surface 62, the elastic member 8 is in a stretched or compressed state.

In some embodiments, the guide 6 is further provided with a break-off opening 41, the break-off opening 41 being provided at an end of the second surface 62 remote from the first surface 61.

Specifically, when the abutting portion 34 moves to the position of the opening 41, the abutting portion 34 is out of contact with the second surface 62, the detected member 3 moves in a direction approaching the first end wall 11a under the elastic force of the elastic member 8, so that the abutting portion 34 falls into the opening 41, and at this time, the detecting portion 32 retracts from the opening 41, that is, the distance between the end of the detecting portion 32 away from the first end wall 11a and the first end wall 11a is smaller than or equal to the distance between the opening 41 and the first end wall 11a. This allows the detection portion 32 not to interfere with the image forming apparatus after the detection of the developing cartridge 100 is completed.

In other embodiments, the front face further comprises a fourth surface 64, the fourth surface 64 being connected to an end of the second surface 62 remote from the first surface 61; when the abutting portion 34 abuts with the fourth surface 64, the detection portion 32 is retracted from the opening 41.

In one possible embodiment, the fourth surface 64 is a slope or a curved surface, and the distance between the fourth surface 64 and the first end wall 11a gradually decreases in a direction away from the second surface 62.

Specifically, as the detected member 3 continues to rotate about the first axis L1, the abutting portion 34 moves from the second surface 62 to the fourth surface 64, and at this time, the detecting portion 32 retracts from the opening 41, that is, the distance between the end of the detecting portion 32 away from the first end wall 11a and the first end wall 11a is smaller than or equal to the distance between the opening 41 and the first end wall 11a.

It will be appreciated that the guide member 6 may be provided with the cut-off opening 41 at a position where the fourth surface 64 is away from the second surface 62, and the abutting portion 34 falls into the cut-off opening 41 by the guiding action of the fourth surface 64, so that the impact force of the abutting portion 34 on the first end wall 11a can be reduced and the noise can be reduced.

In another possible embodiment, the front end face further comprises a fifth surface 65, the fifth surface 65 being connected between the second surface 62 and the fourth surface 64; the fifth surface 65 is a slope or a curved surface, and the distance between the fifth surface 65 and the first end wall 11a gradually decreases in a direction away from the second surface 62. The fourth surface 64 may be a plane, an inclined surface, a curved surface, etc., and is not limited thereto.

Specifically, as the detected member 3 continues to rotate about the first axis L1, the abutting portion 34 moves along the fifth surface 65 to the fourth surface 64, and at this time, the detecting portion 32 retracts from the opening 41, that is, the distance between the end of the detecting portion 32 away from the first end wall 11a and the first end wall 11a is smaller than or equal to the distance between the opening 41 and the first end wall 11a.

Further, the first end wall 11a is further provided with a first stopper 12a and a second stopper 12b, wherein the first stopper 12a is located close to the first surface 61, and the second stopper 12b is located close to the second surface 62.

Specifically, in the initial state, the first blocking portion 12a can restrict the detected member 3 from falling off from the first surface 61; when the developing cartridge 100 finishes the detection, the toothed portion is disengaged from the driving portion 241, the detected member 3 may rotate due to the inertia, so that the detected member may interfere with the stirring member or the end cap 4, and the second blocking portion 12b may limit the detected member 3 from rotating due to the inertia.

It should be noted that the abutting portion 34 may abut against a rear end surface of the guide 6 facing the first end wall 11a, and a specific structure of the rear end surface is similar to that of the front end surface, which is not described herein again. Further, since the detecting portion 32 can move or deflect in a direction approaching the first end wall 11a by the elastic portion 33, the front end surface or the rear end surface can both be flat, that is, the abutting portion 34 always abuts against the front end surface or the rear end surface, and the detecting portion 32 always protrudes from the opening 41. The guide 6 may also be provided on the end cap 4, i.e. the guide 6 may be a protrusion or a groove provided on the inner wall of the end cap 4.

Example 2

Referring to fig. 8 to 12, the structure of the developing cartridge 100 of embodiment 1 is substantially the same, except that the supporting member 7 is connected to the side wall adjacent to the first end wall 11a, rather than directly connected to the first end wall 11a.

Referring to fig. 10 to 12, the housing 1 further includes a side wall connected between the first end wall 11a and the second end wall 11b, and the guide member 6 is provided with an escape opening 66 near the first end wall 11a. The support member 7 includes a connecting portion 71, a bending portion 72 and a supporting portion 73, wherein the connecting portion 71 is disposed on the sidewall, one end of the bending portion 72 is connected to the connecting portion 71, the other end of the bending portion 72 passes through the avoiding opening 66 to be connected to the supporting portion 73, and a central axis of the supporting portion 73 coincides with the first axis L1.

Specifically, the side walls include a first side wall 11c and a second side wall 11d that are opposite in a third direction, wherein the third direction is parallel to the Z-axis direction, and the third direction is toward the positive direction of the Z-axis. The connection portion 71 is disposed on the first side wall 11c, and the projection of the support portion 73 in the first direction is located on the first end wall 11a and inside the guide 6.

In some embodiments, the sidewall is protruded to form a plug portion 13, and the connecting portion 71 is provided with a plug hole (not shown) into which the plug portion 13 is plugged.

Specifically, the first side wall 11c protrudes and extends to form the insertion portion 13, the insertion portion 13 includes a connecting rod 131 and at least one clamping protrusion 132, the connecting rod 131 protrudes and extends from the first side wall 11c, and the clamping protrusion 132 is disposed on an end wall of the connecting rod 131 far away from the first side wall 11 c. The connecting rod 131 is inserted into the insertion hole, and the clamping protrusion 132 can limit the connecting rod 131 to fall off from the insertion hole. The number of the catching projections 132 may be one, two, three or any other number, which is not limited herein.

Further, the first side wall 11c is recessed to form a mounting groove 14, and the connection rod 131 is connected to an inner wall of the mounting groove 14. When the supporter 7 is mounted on the casing 1, the connection portion 71 may be received in the mounting groove 14 to reduce the thickness of the developing cartridge 100 and to prevent the supporter 7 from possibly interfering with the image forming apparatus.

It is understood that the plug 13 may be disposed on the connecting portion 71, that is, the plug 13 extends from the connecting portion 71 to a direction close to the sidewall, and the plug hole may be disposed on the sidewall; alternatively, the support 7 and the housing 1 are connected by screw-fitting, welding, integral molding, or the like.

It should be noted that the structure of the detected member 3 in this embodiment may be the same as that in the foregoing embodiment 1; alternatively, the structure of the object 3 to be detected in this embodiment may be substantially the same as that in embodiment 1, except that the detecting portion 32 is directly connected to the mounting portion 31, that is, the object 3 to be detected is not provided with the elastic portion 33.

Example 3

Referring to fig. 13 to 21, the mechanism of the developing cartridge 100 in embodiment 1 is basically the same, except that the driving wheel 24 rotates about a first axis L1, the detected member 3 rotates about a second axis L2, and the first axis L1 intersects the second axis L2, i.e., the second axis L2 is not parallel to and intersects with the central axis of the developing roller 5.

The detected piece 3 comprises a transmission part 35 and a detection part 32, the transmission part 35 is in transmission connection with the driving wheel 24, the driving wheel 24 receives driving force and rotates around a first axis L1, the driving wheel 24 drives the transmission part 35 to rotate around a second axis L2, so that the detection part 32 moves towards a direction close to or away from the shell 1, and the second axis L2 is arranged in a mode of intersecting with the first axis L1.

The included angle between the second axis L2 and the first axis L1 is greater than 0 ° and equal to or less than 90 °, which is not limited herein. In the embodiment of the present application, the included angle between the second axis L2 and the first axis L1 may be 90 °.

Specifically, the supporting member 7 is disposed on the housing 1 or the end cover 4, the supporting portion 73 extends along the second axis L2, and the transmission portion 35 is rotatably sleeved on the outer periphery of the supporting member 7. The detected piece 3 has a first position, a second position and a third position; in the initial state, the detected member 3 is at the first position, and at this time, the detecting portion 32 is retracted from the opening 41; in the process of detecting the developing cartridge 100, the detected member 3 is in the second position, and at this time, the detecting portion 32 extends out of the opening 41, so that the detecting portion 32 can contact with the detecting mechanism 200 and drive the detecting mechanism 200 to move from the non-detecting position to the detecting position; after the detection of the developing cartridge 100 is completed, the detection object 3 is at the third position, and at this time, the detection portion 32 is retracted from the opening 41. Thus, when the developing cartridge 100 is mounted in or removed from the image forming apparatus, the detection portion 32 is effectively prevented from interfering with other components provided in the image forming apparatus because the detection portion 32 is retracted from the opening 41.

Referring to fig. 13 to 18, in some embodiments, the transmission portion 242 receives the driving force to rotate around the first axis L1, the driving portion 241 and the transmission portion 35 are both conical wheels, and the driving portion 241 and the transmission portion 35 rub against each other, so that the transmission portion 35 rotates under the action of the friction force.

Specifically, the detecting portion 32 includes a first link 321 and a second link 322, the first link 321 extends from the transmission portion 35 along the second axis L2 in a direction away from the driving wheel 24, and the second link 322 extends from one end of the first link 321 away from the transmission portion 35 in a direction close to the end cap 4. At least a portion of the second link 322 may protrude from the opening 41 during rotation of the detected member 3 about the second axis L2.

A friction layer is arranged on the periphery of the driving part 241, and a friction layer is arranged on the periphery of the transmission part 35; or, the periphery of the driving part 241 is provided with a friction layer, and the periphery of the transmission part 35 is a rough surface; alternatively, the outer peripheral surface of the driving portion 241 is a rough surface, and the outer periphery of the transmission portion 35 is provided with a friction layer. The friction layer is made of rubber, asbestos, or any other material capable of increasing friction force, and is not limited herein.

It is understood that the outer peripheral surface of the driving portion 241 may be a rough surface, and the outer peripheral surface of the transmission portion 35 may also be a rough surface, i.e. the outer peripheries of the driving portion 241 and the transmission portion 35 need not be provided with a friction layer.

Referring to fig. 19 to 21, in other embodiments, the driving portion 241 and the transmission portion 35 are both bevel gears, and the driving portion 241 is engaged with the transmission portion 35.

In still other embodiments, the driving wheel 24 is provided with a plurality of protrusions at intervals around the first axis L1, the transmission part 35 is provided with a plurality of grooves around the second axis L2, and any one of the protrusions can be inserted into any one of the grooves; or, the driving wheel 24 is provided with a plurality of grooves at intervals around the first axis L1, and the transmission part 35 is provided with a plurality of protrusions around the second axis L2, and any one of the protrusions can be inserted into any one of the grooves. Through the matching of the protrusion and the groove, the driving wheel 24 drives the detected piece 3 to rotate around the second axis L2.

Further, the transmission unit 35 is provided with a disconnecting unit (not shown), and when the disconnecting unit is opposite to the driving unit 241 during the rotation of the detected member 3 around the second axis L2, the transmission unit 35 is out of contact with the driving unit 241, and the detected member 3 no longer rotates along with the driving wheel 24, and at this time, the detecting unit 32 retracts from the opening 41.

It should be noted that the supporting member 7 may extend from the side of the opening 41 away from the driving wheel 24 along the second axis L2 to the direction close to the driving wheel 24, as shown in fig. 16; alternatively, the support 7 may extend from the side of the opening 41 close to the driving wheel 24 along the second axis L2 in a direction away from the driving wheel 24, as shown in fig. 21.

In the present application, in the initial state, the transmission portion 35 is in contact with or engaged with the driving portion 241, and at this time, the detection portion 32 is retracted from the opening 41; during the detection of the developing cartridge 100, the driving portion 241 drives the transmission portion 35 to rotate around the second axis L2, so that the detection portion 32 extends out of the opening 41 to contact the detection mechanism 200, and drives the detection mechanism 200 to move from the non-detection position to the detection position; after the detection of the developing cartridge 100 is completed, the transmission portion 35 continues to rotate around the second axis L2 until the disconnecting portion is opposite to the driving portion 241, at this time, the transmission portion 35 is out of contact with or out of engagement with the driving portion 241, the detected member 3 is no longer rotated along with the driving wheel 24, and the detecting portion 32 is retracted from the opening 41. Therefore, when the developing cartridge 100 is installed in the image forming apparatus or removed from the image forming apparatus, the detection part 32 does not interfere with other components arranged in the image forming apparatus, which is beneficial to the installation or removal of the developing cartridge 100, and the detected piece 3 is prevented from being damaged due to the interference between the detection part 32 and the image forming apparatus.

Example 4

Referring to fig. 22 to 33, the structure of the developing cartridge 100 according to embodiment 1 or 2 is substantially the same, except that at least a part of the detecting portion 32 protrudes from the opening 41, and the case 1 or the end cap 4 is not provided with the guide 6, so that the detected member 3 does not move in a direction approaching or separating from the case 1 during rotation.

The detected piece 3 comprises a detection part 32 and a transmission part 35, wherein the transmission part 35 is in transmission connection with the driving wheel 24, at least part of the detection part 32 extends out of the opening 41 all the time, and the detection part 32 is also provided with a notch 323 so that the detection part 32 can be separated from the contact with the detection mechanism 200; when the detection unit 32 comes into contact with the detection mechanism 200, the detection mechanism 200 moves from the detection position to the non-detection position; when the detection unit 32 is out of contact with the detection mechanism 200, the detection mechanism 200 moves from the non-detection position to the detection position.

With continued reference to fig. 24-29, the detecting mechanism 200 includes a rotating member 210, a reset member (not shown), and two sensing members 220. When the detection part 32 comes into contact with the rotary 210, the rotary 210 moves from the detection position to the non-detection position; when the detecting portion 32 is out of contact with the rotary member 210, the rotary member 210 moves from the non-detection position to the detection position by the reset member.

Specifically, the rotary 210 includes an abutting portion 2101 and a sensing portion 2102, and the abutting portion 2101 abuts against the detection portion 32. When the rotary member 210 is in the detection position, the sensing portion 2102 is located between the two sensing members 220; when the rotating member 210 is in the non-detection position, the sensing portion 2102 is away from the two sensing members 220, i.e., the sensing portion 2102 is moved out from between the two sensing members 220.

In the initial state, the detecting portion 32 contacts the abutting portion 2101 to make the sensing portion 2102 away from the two sensing pieces 220, and at this time, the rotating piece 210 is in the non-detection position, and the sensing piece 220 does not acquire a signal, as shown in fig. 24 and 25; during the detection of the developing cartridge 100, when the detecting portion 32 rotates around the first axis L1 until the notch 323 is opposite to the abutting portion 2101, the abutting portion 2101 is out of contact with the detecting portion 32, at this time, the rotating member 210 moves from the non-detection position to the detection position by the reset member, and the sensing member 220 acquires a signal, as shown in fig. 26 and 27; after the detection of the developing cartridge 100 is completed, the detection portion 32 continues to rotate about the first axis L1, the detection portion 32 comes into contact with the abutting portion 2101 again, and brings the rotary member 210 to move from the detection position to the non-detection position, as shown in fig. 28 and 29.

In some embodiments, the driving portion 241 is a gear structure and the transmission portion 35 is a gear structure with missing teeth, i.e. the transmission portion 35 includes a toothed portion and a non-toothed portion. In the initial state, the toothed part is meshed with the driving part 241, so that the driving wheel 24 can drive the detected piece 3 to rotate; when the detection of the developing cartridge 100 is completed, the toothed portion is disengaged from the driving portion 241, and the detected member 3 no longer rotates with the driving wheel 24.

Referring to fig. 30 to 33, in other embodiments, the transmission portion 35 includes a first driven portion 351 and a second driven portion 352 spaced along the first axis L1, the first driven portion 351 is in transmission connection with the driving portion 241, and the second driven portion 352 is in transmission connection with the transmission portion 242.

Specifically, the outer diameter of the transmission portion 242 is larger than that of the driving portion 241, and the outer diameter of the first driven portion 351 is larger than that of the second driven portion 352. The driving part 241 and the transmitting part 242 are both of a gear structure, and the first driven part 351 and the second driven part 352 are both of a gear structure with missing teeth.

The detected piece 3 has a first position, a second position and a third position; when the detected member 3 is at the first position, the detecting portion 32 contacts the detecting mechanism 200, the first driven portion 351 is disengaged from the driving portion 241, and the second driven portion 352 is engaged with the transmitting portion 242, as shown in fig. 30 and 31; when the detected member 3 is at the second position, the detecting portion 32 contacts the detecting mechanism 200, the first driven portion 351 engages with the driving portion 241, and the second driven portion 352 disengages from the transmitting portion 242, as shown in fig. 32 and 33; when the detection object 3 is at the third position, the detection portion 32 is out of contact with the detection mechanism 200, the first driven portion 351 is disengaged from the driving portion 241, and the second driven portion 352 is disengaged from the transmission portion 242, as shown in fig. 31 and 32. Thus, the user can adjust the rotation angle and speed of the detected member 3 by adjusting the transmission ratio between the driving portion 241 and the transmitting portion 242.

With continued reference to fig. 23, further, an elastic member 8 is disposed between the detected member 3 and the end cap 4. When the detected member 3 is rotated to the position shown in fig. 28, the user can first grip the portion of the detecting portion 32 extending out of the opening 41 and pull the detecting portion 32 to move away from the first end wall 11a, at this time, the elastic member 8 is in a compressed state, and then rotate the detecting portion 32, so that the second driven portion 352 is engaged with the transmitting portion 242 again, i.e., returns to the initial position shown in fig. 24, thereby resetting the detected member 3 and facilitating the operation.

The developing cartridge 100 further includes a pressing member 9, and the pressing member 9 is disposed in close proximity to the detected member 3. The first end wall 11a is further provided with a mounting column 15, the pressing piece 9 is sleeved on the periphery of the mounting column 15, and the pressing piece 9 is abutted against the detected piece 3 so as to keep the transmission part 35 in contact with the driving wheel 24.

Specifically, the pressing member 9 may be any other elastic component, such as a spring, a torsion spring, a tension spring, a plate spring, a rubber block, and the like, and is not limited herein. In the embodiment of the present application, the pressing member 9 may be a torsion spring.

The material of the detected member 3 may be any one of rubber, silica gel or high-density sponge, so that in the process of installing the developing cartridge 100 in the image forming apparatus or removing the developing cartridge from the image forming apparatus, even though the part of the detecting portion 32 extending out of the opening 41 may contact with other parts arranged in the image forming apparatus, the detecting portion 32 has certain elasticity, so that the detecting portion 32 may deform, and the problem that the detected member 3 is damaged due to interference between the detecting portion 32 and the image forming apparatus is avoided.

Compared with the prior art, the utility model provides an in the developing box 100, because the detection portion 32 is connected with installation department 31 through elastic component 33, the in-process that is installed in imaging device or is unloaded in the imaging device at developing box 100, if when other parts in detection portion 32 and the imaging device take place the contact, elastic component 33 can take place deformation after the atress, so that detection portion 32 removes or deflects to the direction that is close to casing 1, and then make detection portion 32 and other parts in the imaging device break away from the contact, be favorable to developing box 100's installation or lift off, avoided being detected piece 3 because of taking place to interfere with imaging device and appearing damaging.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A developing box comprises a shell, a driving wheel and a detected piece, wherein the driving wheel receives driving force to drive the detected piece to rotate around a first axis;

the shell is provided with a guide part around the first axis, and the detected piece moves along the guide part in the rotating process so as to move the detected piece towards or away from the shell.

2. A developing cartridge according to claim 1, wherein said casing includes a first end wall and a second end wall opposed in a first direction, said guide is provided to said first end wall, and said mounting portion is rotatably provided to said first end wall;

the developing box further comprises an end cover, the end cover is arranged on the first end wall to cover the driving wheel and the detected piece, an opening is formed in the end cover in a penetrating mode, and at least part of the detection portion extends out of the opening.

3. A developing cartridge according to claim 2, wherein said detected member further includes an abutting portion, said abutting portion being connected to said mounting portion, and said abutting portion abutting against a front end surface of said guide member facing away from said first end wall.

4. A developing cartridge according to claim 3, wherein said front end surface includes a first surface and a second surface which are successively connected in this order;

the detecting portion is retracted from the opening when the abutting portion abuts against the first surface; when the abutting portion abuts against the second surface, at least a part of the detection portion protrudes from the opening.

5. A developing cartridge according to claim 4, further comprising an elastic member provided between said end cap and said detected member;

when the abutting portion abuts against the second surface, the elastic member is in a stretched or compressed state.

6. A developing cartridge according to any one of claims 2-5, further comprising a support, wherein said casing includes a side wall connected between said first end wall and said second end wall;

the guide piece is close to the first end wall is provided with an avoidance port, the support piece comprises a connecting portion, a bending portion and a supporting portion, the connecting portion is arranged on the side wall, one end of the bending portion is connected with the connecting portion, the other end of the bending portion penetrates through the avoidance port and the supporting portion, and the central axis of the supporting portion coincides with the first axis.

7. A developing cartridge according to claim 6, wherein said supporting member further includes an insertion portion extending from said connecting portion in a direction close to said side wall, said side wall being provided with an insertion hole, said insertion portion being inserted into said insertion hole.

8. A developing cartridge according to claim 6, wherein said side wall is formed with a fitting portion projecting therefrom, and said connecting portion is provided with a fitting hole into which said fitting portion is fitted.

9. The utility model provides a developing box, characterized in that includes casing, drive wheel and is detected the piece, wherein, it includes transmission portion and detection part to be detected the piece, transmission portion with drive wheel transmission is connected, the drive wheel receives drive power and rotates around first axis, just the drive wheel drives transmission portion is rotatory around the second axis, so that detection part is to being close to or keeping away from the direction of casing removes, the second axis with first axis cross arrangement.

10. The utility model provides a developing box, detachably sets up in imaging device, imaging device is provided with detection mechanism, developing box includes casing, drive wheel and is detected the piece, the drive wheel receives drive power in order to drive it is rotatory around first axis to be detected the piece, a serial communication port, developing box still includes end cover and elastic component, the end cover with the casing is connected with the cladding detected the piece with the drive wheel, just the end cover link up and is provided with the opening, at least part that is detected the piece can certainly the opening stretch out with detection mechanism contacts, the elastic component set up in the end cover with be detected between the piece.

Images