CN216387746U - Developing box - Google Patents

Abstract

A developing box is detachably arranged on an electronic imaging device and comprises a box body and a detection assembly, wherein the detection assembly comprises a rotating piece, a detection piece and a first elastic piece; when the developing box needs to perform the detection process again, the rotating piece firstly moves towards the direction far away from the box body under the action of external force and then rotates along the opposite direction of the first direction; after the rotating member is relieved from stress, the first elastic member can drive the rotating member to move to the direction close to the box body and abut against the limiting member arranged on the box body, so that the rotating member is favorable for rotation reset, the rotating angle of the rotating member is easy to control, and the detection assembly is completely reset.

Description

Developing box

The present application claims priority of chinese patent office filed on 2/2021, chinese patent application No. 202120309255.1 entitled "developing cartridge", chinese patent office filed on 2/2020, chinese patent application No. 202120309367.7 entitled "developing cartridge and process cartridge", chinese patent application filed on 2/2020, chinese patent office filed on 202120302281.1 entitled "developing cartridge and process cartridge", and chinese patent application filed on 2/2020, chinese patent office filed on 202120309470.1 entitled "developing cartridge", the entire contents of which are incorporated herein by reference.

[ technical field ] A method for producing a semiconductor device

The utility model relates to the technical field of electronic imaging equipment, in particular to a developing box.

[ background of the utility model ]

An existing electronic image forming apparatus, such as a laser printer, includes a developing cartridge detachably mounted in the electronic image forming apparatus. The conventional developing cartridge is usually provided with a detecting mechanism, which generally includes a detecting gear having a detecting protrusion, wherein during detection, the detecting protrusion protrudes from an end surface of a gear protecting cover along with rotation of the detecting gear and touches a detecting unit provided in the electronic image forming apparatus, so as to complete detection of the developing cartridge. When the developer stored in the developing cartridge is exhausted, the developing cartridge needs to be detached from the electronic image forming apparatus, then the developer is replenished into the developing cartridge, and finally the developing cartridge after the developer is replenished is installed in the electronic image forming apparatus.

Before installing the developing cartridge behind the replenishment developer to electronic imaging equipment, need carry out gyration to detecting the gear and reset and handle, but need accomplish the restoration to detecting the gear after dismantling gear protecting cover among the current developing cartridge, the operation process is tedious and can't ensure that the accuracy of detecting the gear resets to initial position.

[ Utility model ] content

The application provides a developing box to detect the gear among the present developing box and take place the meshing and lead to detecting the gear and be difficult to the pivoted problem with other parts among the developing box at the in-process that the gyration resets.

The embodiment of the application provides a developing box which is detachably arranged on an electronic imaging device and comprises a box body and a detection assembly, wherein the detection assembly comprises a rotating piece, a detection piece and a first elastic piece; when the developing box at the detected position needs to perform the detection process again, the rotating piece firstly moves towards the direction far away from the box body under the action of external force and then rotates along the opposite direction of the first direction; when the rotating part is relieved from stress, the first elastic part can drive the rotating part to move to the direction close to the box body and abut against the limiting part arranged on the box body.

Optionally, the rotating member comprises a rotating shaft, a gear portion, a driving portion and an abutting portion, wherein the gear portion is arranged around the periphery of the rotating shaft, and the gear portion is between the driving portion and the abutting portion; in the process that the rotating piece rotates along the direction opposite to the first direction, the abutting part can abut against the limiting piece.

Optionally, the developing box further comprises an end cover connected with the box body, and a mounting column is arranged on the side wall, far away from the box body, of the end cover; the detection piece comprises a detection part and a rotating shaft part, wherein the rotating shaft part is internally provided with a mounting hole, and the mounting column can be inserted into the mounting hole; in the process that the rotating piece rotates along the first direction, the driving part can be in contact with the detection part to drive the detection piece to rotate around the mounting column and move to the detected position from the non-detected position.

Optionally, the developing box further comprises an end cover connected with the box body, a sliding groove is formed in the end cover along the second direction, and the detection piece is clamped in the sliding groove; in the process that the rotating piece rotates along the first direction, the driving part can be contacted with the part of the detection piece inserted into the sliding groove so as to drive the detection piece to move from the non-detected position to the detected position along the sliding groove.

Optionally, the detection piece further comprises a flexible portion capable of deforming, and the flexible portion is arranged at the end portion, far away from the box body, of the detection piece.

Optionally, the detection assembly includes a second elastic member, and the second elastic member is disposed between the detection member and the end cap or the box body, and is configured to drive the detection member to move from the detected position to the non-detected position.

Optionally, the first elastic member is disposed between the rotating member and the end cap or the box body.

Optionally, the box body comprises a box body and a bin cover, wherein an accommodating cavity is formed in the box body, and the bin cover is connected with the box body to seal the accommodating cavity; the box body still is equipped with the crossbeam around holding the chamber, and the cang gai can with the crossbeam butt.

Optionally, the developing cartridge further comprises a power assembly, and the power assembly comprises a driving force receiving member for receiving a driving force from the electronic image forming apparatus to rotate the rotary member; one end of the driving force receiving piece, which is close to the box body, is provided with a hollow cylindrical inner cavity with a smooth inner wall; still be equipped with the support on the box body, the support includes base plate and installation department, and the installation department extends along the direction of keeping away from the box body from the base plate, and receives the piece cover and locate on the installation department for driving force.

Optionally, the support still includes joint portion, and the support passes through joint portion to be connected with the box body, and joint portion is for extending the arch that sets up and/or seting up the joint hole on the base plate from the base plate to the direction that is close to the box body.

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

compared with the prior art, in the developing cartridge provided by the utility model, before the developing cartridge after being replenished with the developer needs to be installed in an electronic imaging device, a user can firstly apply lifting force to the rotating member, and the rotating member can move in a direction away from the cartridge body after receiving the lifting force; then applying a torsional force to the rotating part, wherein the rotating part can rotate along the reverse direction of the first direction after receiving the torsional force; finally, after the user releases the lifting force and the torsional force applied to the rotating piece, the first elastic piece can drive the rotating piece to move towards the direction close to the box body; because the rotating piece moves away from the box body after being subjected to the lifting force, the rotating piece can be prevented from being meshed with other parts in the developing box in the process of rotating along the direction opposite to the first direction, and the rotation resetting of the rotating piece is facilitated; meanwhile, in the process that the rotating piece rotates along the reverse direction of the first direction, the limiting piece arranged on the box body can limit the angle of the rotating piece rotating along the reverse direction of the first direction, so that the rotating piece can be ensured to be completely reset. According to the technical scheme provided by the utility model, the reset operation of the rotating member can be completed without disassembling the end cover of the developing box, and meanwhile, the limiting member which is matched with the reset operation of the rotating member is arranged on the developing box, so that the rotating member can be limited to continue rotating along the direction opposite to the first direction after the reset operation is completed, and the rotating member can be accurately reset to the initial position. In addition, still can effectively avoid in the developing cartridge transportation through set up the locating part on the developing cartridge, cause the rotating member to rotate the dislocation because of the vibration, and then influence the problem that developing cartridge detected the precision.

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 needed 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 to obtain other drawings based on 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 schematic structural view of another angle of the developing cartridge provided in embodiment 1 of the present application.

Fig. 3 is an exploded schematic view of a developing cartridge provided in embodiment 1 of the present application.

Fig. 4 is a schematic structural view of a cartridge cover in a developing cartridge according to embodiment 1 of the present application.

Fig. 5 is a schematic view showing an assembly relationship between a developing roller and a powder feeding blade in the developing cartridge provided in embodiment 1 of the present application.

Fig. 6 is a schematic structural view of a developing cartridge provided in embodiment 1 of the present application at a further angle.

Fig. 7 is a partial structural schematic view of a developing cartridge provided in embodiment 1 of the present application.

Fig. 8 is a schematic structural view of a driving force receiving member in a developing cartridge provided in embodiment 1 of the present application.

Fig. 9 is a schematic structural view of a holder in a developing cartridge provided in embodiment 1 of the present application.

Fig. 10 is a partially exploded view of a developing cartridge provided in embodiment 1 of the present application.

Fig. 11 is a partial structural schematic view of an electrode in a developing cartridge provided in embodiment 1 of the present application.

Fig. 12 is another partially exploded view of the structure of a developing cartridge according to embodiment 1 of the present application.

Fig. 13 is a partial structural schematic view of a developing cartridge provided in embodiment 2 of the present application.

Fig. 14 is a schematic structural view of another angle of the developing cartridge provided in embodiment 2 of the present application.

Fig. 15 is a partially exploded view of a developing cartridge provided in embodiment 2 of the present application.

Reference numerals:

100. a developing cartridge;

1. a box body;

10a, a first side wall; 10b, a second side wall;

11. a box body; 111. a cross beam; 112. reinforcing ribs; 113. welding the part; 114. an accommodating chamber; 115. a support shaft; 116. a limiting member;

12. a bin cover; 121. a first contact portion; 122. a second contact portion; 123. connecting ribs;

13. a powder discharging knife; 131. a tool holder; 132. a blade;

14. a developing chamber; 15. an accommodating bin; 16. a paper guide rib; 17. a forced pushing part; 18. a long sponge; 19. scraping a blade;

2. a developing roller;

21. a developing roller shaft;

3. a powder feeding roller;

31. a powder feeding roller shaft;

4. an end cap;

40. a port; 41. mounting a column; 42. a sliding groove; 43. a first connecting column;

5. a detection component;

51. a detection member; 511. a flexible portion; 512. a detection unit; 513. a rotating shaft part; 514. a second connecting column;

52. a rotating member; 521. a drive section; 522. a gear portion; 523. a rotating shaft; 524. an abutting portion;

53. a first elastic member; 54. a second elastic member;

6. a stirrer;

61. a stirring shaft;

7. a power assembly;

71. a driving force receiving member; 711. a driving force receiving portion; 712. a first gear; 713. a through hole;

72. a developing roller gear; 73. a powder feeding roller gear; 74. a first idler pulley; 75. a second idler pulley; 76. a third idler pulley; 77. a fourth idler pulley;

78. a stirrer gear; 781. a second gear; 782. a third gear;

8. a support;

81. a substrate; 82. a first mounting portion; 83. a second mounting portion; 84. a third mounting portion; 85. a clamping part; 86. a clamping hole;

9. an electrode assembly;

91. a bearing member; 92. an electrode; 93. a connecting member.

[ 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 related objects are in an "or" relationship.

The embodiment of the application provides a developing box, which comprises a box body, a power assembly and a detection assembly, wherein the detection assembly comprises a rotating piece, a detection piece and a first elastic piece; when the detection piece moves to the detected position, the rotating piece can move in the direction away from the box body after being stressed and rotates along the direction opposite to the first direction; when the rotating piece is relieved from stress, the first elastic piece can drive the rotating piece to move towards the direction close to the box body; the box body is provided with a limiting piece for limiting the rotation angle of the rotating piece along the reverse direction of the first direction.

Example 1

Referring to fig. 1 and 2, the developing cartridge 100 includes a cartridge body 1, a power assembly 7, and a sensing assembly 5. The box body 1 comprises a first side wall 10a and a second side wall 10b opposite to each other along a third direction D3, the power assembly 7 and the detection assembly 5 are respectively disposed on the first side wall 10a, and the power assembly 7 is used for driving the detection assembly 5 to rotate and move from a non-detected position to a detected position. The developing cartridge 100 is detachably mounted to an electrophotographic apparatus (not shown) having a detecting unit with which the detecting member 5 can be brought into contact, thereby enabling the detecting unit to detect the developing cartridge 100.

The developing roller 2, the powder feeding roller 3 and the agitator 6 are sequentially disposed in the cartridge body 1 along the second direction D2, and the developing roller 2, the powder feeding roller 3 and the agitator 6 are rotatably coupled between the first side wall 10a and the second side wall 10b, respectively. Here, the second direction D2 is a longitudinal direction of the developing roller 2, and the third direction D3 is a direction perpendicular to a normal direction of the first sidewall 10a or the second sidewall 10 b.

The bottom wall of the cartridge body 1 along the second direction D2 is formed with a pushing portion 17, and when the developing cartridge 100 is mounted on a drum assembly (not shown in the figure) in an electrophotographic image forming apparatus, a pushing action portion (not shown in the figure) provided on the drum assembly applies an acting force to the pushing portion 17, so that the developing cartridge 100 is moved toward a direction close to a photosensitive drum (not shown in the figure) provided on the drum assembly by the acting force, and the developing roller 2 is pushed to be in close contact with the photosensitive drum.

The cartridge body 1 has a housing bin 15 and a developing bin 14, wherein the housing bin 15 is used for housing developer, such as toner, and the like, and the height of the housing bin 15 along the second direction D2 is 40 mm. The agitator 6 is disposed in the accommodating chamber 15, and the powder feed roller 3 and the developing roller 2 are disposed in the developing chamber 14. The agitator 6 is configured to agitate the developer stored in the storage bin 15 to make the developer in a fluffy state, the toner feed roller 3 may transfer the developer stored in the storage bin 15 to the developing roller 2, and the photosensitive drum provided in the electronic image forming apparatus may receive the developer from the developing roller 2, convert an electrostatic latent image formed on the surface of the photosensitive drum into a visible developer image, and transfer the visible developer image to the surface of a printing medium.

A plurality of paper guide ribs 16 are disposed on a rear side wall of the developing hopper 14 away from the developing roller 2, and the paper guide ribs 16 extend in the second direction D2 for guiding the printing medium to move back and forth in the second direction D2.

Referring to fig. 3, the box body 1 includes a box body 11 and a cover 12, wherein the box body 11 is provided with a containing cavity 114, and the cover 12 is connected with the front side wall of the box body 11 to close the containing cavity 114, so as to form a containing cavity 15.

Still be provided with connection frame on the box body 11, and connection frame sets up around the periphery that holds chamber 114, and mode fixed connection such as riveting, buckle, screw-thread fit, welding can be passed through with connection frame to cang gai 12. The connecting frame is further provided with a welding part 113 at a position close to the developing roller 2, the bin cover 12 is fixedly connected with the welding part 113 through welding, and the welding part 113 can be a plane.

The developing roller 2 includes a developing roller shaft 21, and the developing roller shaft 21 may protrude outside the developing hopper 14 from the first and second side walls 10a and 10b, respectively. The powder feeding roller 3 includes a powder feeding roller shaft 31, and the powder feeding roller shaft 31 may protrude outside the developing hopper 14 from the first side wall 10a and the second side wall 10b, respectively. The stirrer 6 includes a stirring shaft 61 and stirring blades (not shown in the figure) disposed in the accommodating chamber 114, and the stirring shaft 61 may respectively extend out of the accommodating chamber 15 from the first side wall 10a and the second side wall 10b, wherein the stirring blades are fixedly disposed on the stirring shaft 61 by means of fastening, welding, thread fitting, or integral forming.

The box body 11 is further provided with a cross beam 111 surrounding the accommodating cavity 114, the cross section of the cross beam 111 is U-shaped, and a plurality of reinforcing ribs 112 are arranged inside the cross beam 111 at intervals. After the bin cover 12 is connected to the connection frame, the bin cover 12 may abut against the cross beam 111, so that there is no gap between the bin cover 12 and the sidewall of the box body 11, thereby enhancing the sealing performance of the developing cartridge 100.

Specifically, the cross beam 111 may extend along the second direction D2 and be disposed on the left or right side of the accommodating cavity 114, and may also extend along the third direction D3 and be disposed on the upper or lower side of the accommodating cavity 114. In the embodiment of the present application, the cross member 111 extends along the third direction D3 and is disposed on the upper side of the accommodating cavity 114.

Referring to fig. 4, a first contact portion 121 and a second contact portion 122 contacting with the stirring blade are disposed on a side wall of the bin cover 12 facing the accommodating cavity 114, wherein the first contact portion 121 is a plane, the second contact portion 122 includes a plurality of connecting ribs 123, and the connecting ribs 123 extend along the second direction D2 and are disposed around the first contact portion 121.

With continued reference to fig. 1 and 3, the developing cartridge 100 further includes a doctor blade 13 for controlling the thickness of the developer on the developing roller 2.

A long sponge 18 is arranged between the box body 11 and the powder outlet knife 13, and the long sponge 18 and the powder outlet knife 13 are arranged in parallel, so that a gap between the powder outlet knife 13 and the box body 11 is sealed. Side seals are provided between both ends of the developing roller 2 in the axial direction and the cartridge body 11, thereby sealing the gap between both ends of the developing roller 2 in the axial direction and the cartridge body 11.

Specifically, the side seal includes felt and side sponge, and the side sponge is disposed between the felt and the cartridge body 11. The elastic coefficient of the long sponge 18 is consistent with that of the side sponge, but the thicknesses of the long sponge 18 and the side sponge are different, the thickness of the long sponge 18 is 4mm, and the thickness of the side sponge is 3 mm.

The box body 11 is also provided with a scraping blade 19 for sealing, an elastic part is arranged between the scraping blade 19 and the box body 11 so as to improve the sealing property between the scraping blade 19 and the box body 1, and the elastic part extrudes the end part of the free end of the scraping blade 19 and leads the end part to be completely free from contact with the outer surface of the developing roller 2. The elastic component can be made of sponge and the like. The side sponges and the strip sponges 18 may be equivalently replaced by other materials.

Referring to fig. 5, the doctor blade 13 includes a blade holder 131 and a blade 132, the blade 132 is fixedly disposed on the cartridge body 11 through the blade holder 131, and the blade 132 contacts the developing roller 2. The included angle theta between the tail end of the blade 132, which is in contact with the developing roller 2, and the tangent line of the developing roller 2 at the position is smaller than 90 degrees, so that the powder outlet blade 13 can better control the thickness of the developer on the developing roller 2. The blade 132 may be fixedly disposed on the blade holder 131 by welding, snap-fit, screw-fit, or integrally formed, and the blade holder 131 may be fixedly disposed on the cartridge body 11 by welding, snap-fit, screw-fit, riveting, or integrally formed.

Referring to fig. 3 and 6 to 8, the power assembly 7 includes a driving force receiving member 71, a developing roller gear 72, a powder feeding roller gear 73, a first idle gear 74, a second idle gear 75, a third idle gear 76, a fourth idle gear 77, and an agitator gear 78, wherein the driving force receiving member 71, the first idle gear 74, the second idle gear 75, the third idle gear 76, and the fourth idle gear 77 are rotatably disposed on the first side wall 10a, the developing roller gear 72 is disposed at an end portion of the developing roller shaft 21 protruding out of the first side wall 10a, the powder feeding roller gear 73 is disposed at an end portion of the powder feeding roller shaft 31 protruding out of the first side wall 10a, and the agitator gear 78 is disposed at an end portion of the agitating shaft 61 protruding out of the first side wall 10 a.

Specifically, the driving force receiving member 71 includes a driving force receiving portion 711 and a first gear 712, wherein the driving force receiving portion 711 is configured to receive a driving force from the electronic image forming apparatus to rotate the first gear 712, the first gear 712 is engaged with the developing roller gear 72, the powder feed roller gear 73, and the first idle gear 74, respectively, and the first gear 712 can rotate the developing roller gear 72, the powder feed roller gear 73, and the first idle gear 74, and further rotate the developing roller 2 and the powder feed roller 3.

The first idle gear 74 and the second idle gear 75 are coaxially disposed, and the second idle gear 75 is closer to the first sidewall 10a than the first idle gear 74, and the second idle gear 75 meshes with the third idle gear 76, and the third idle gear 76 also meshes with the fourth idle gear 77. When the first gear 712 rotates the first idle gear 74, the second idle gear 75 rotates, thereby rotating the third idle gear 76 and the fourth idle gear 77. Agitator gear 78 includes along coaxial setting's second gear 781 and third gear 782, and third gear 782 is closer to first lateral wall 10a than second gear 781, and fourth idler 77 still meshes mutually with third gear 782 to drive agitator gear 78 and rotate, and then drive agitator 6 and rotate.

It is understood that the second idle gear 75 can be directly contacted with the third gear 782, so that the second idle gear 75 can be meshed with the third gear 782, and the third idle gear 76 and the fourth idle gear 77 are not required to be additionally arranged, thereby simplifying the structure of the power assembly 7 and facilitating the subsequent assembly of the power assembly 7.

With continued reference to fig. 7 to 9, the developing cartridge 100 further includes a bracket 8 disposed on the cartridge body 1, the bracket 8 includes a base plate 81 and a mounting portion extending toward a direction away from the base plate 81, the mounting portion includes a first mounting portion 82, a second mounting portion 83 and a third mounting portion 84, wherein the first mounting portion 82 extends from the base plate 81 in the direction away from the first side wall 10a, the second mounting portion 83 and the fourth mounting portion 84 extend from the base plate 81 in the direction close to the first side wall 10a, respectively, and the driving force receiving member 71 is sleeved on the first mounting portion 82, so that the driving force receiving member 71 is disposed on the first side wall 10 a.

Still be provided with joint portion 85 on the base plate 81, base plate 81 passes through joint portion 85 and is connected with first lateral wall 10a to realize that support 8 is fixed to be set up on box body 1.

The first gear 712 is further provided with a through hole 713, and the through hole 713 is a hollow cylindrical cavity with a smooth inner wall, that is, the surface of the inner wall of the cylindrical cavity is a smooth surface, and no protrusion is arranged on the inner wall. The first mounting portion 82 can be inserted into the through hole 713 to fit the driving force receiving member 71 on the first mounting portion 82. The end of the developing roller shaft 21 extending out of the first side wall 10a can be inserted into the second mounting portion 83, and the end of the powder feeding roller shaft 31 extending out of the first side wall 10a can be inserted into the third mounting portion 84, so that the positioning and assembly of the developing roller 2 and the powder feeding roller 3 are realized. The developing roller gear 72 and the powder feeding roller gear 73 are provided on the side wall of the base plate 81 remote from the case 1, and are connected to the developing roller shaft 21 and the powder feeding roller shaft 31, respectively.

The clamping portion 85 may be a protrusion extending from the substrate 81 to a direction close to the box body 1, a clamping interface or a clamping protrusion is correspondingly arranged on the box body 1, and the substrate 81 is fixedly arranged on the box body 1 through the matching of the protrusion and the clamping interface or the clamping protrusion; the clamping portion 85 may also be a clamping hole 86 formed in the substrate 81, a clamping protrusion is correspondingly arranged on the box body 1, and the substrate 81 is fixedly arranged on the box body 1 through the matching of the clamping hole 86 and the clamping protrusion; the clamping portion 85 can also include a protrusion extending from the base plate 81 to a direction close to the box body 1 and a clamping hole 86 formed in the base plate 81, and a clamping interface or a clamping protrusion is correspondingly arranged on the box body 1.

Referring to fig. 10 and 11, the developing cartridge 100 further includes an electrode assembly 9 disposed on the second sidewall 10b, the electrode assembly 9 including a bearing member 91, an electrode 92, and a connector 93. When the developing cartridge 100 is mounted in the electrophotographic apparatus, the electrode assembly 9 is brought into contact with an electrode (not shown in the drawings) provided to the drum assembly, thereby supplying a bias voltage to the developing roller 2.

Specifically, the bearing member 91 is fixedly disposed on the second side wall 10b by means of clamping, and the electrode 92 is disposed on a side of the bearing member 91 away from the second side wall 10b and connected to the second side wall 10b by a fastener (e.g., a screw). The connecting member 93 is provided on the cartridge 1 and the electrode 92 in a snap-fit manner, and is used to connect the developing roller shaft 21, the powder feeding roller shaft 31, and the electrode 92. The bearing member 91 covers the contact surface of the powder feeding roller shaft 31 and the connector 93, while the bearing member 91 is provided with an opening to expose the contact surface of the developing roller shaft 21 and the connector 93 so that the connector 93 can protrude from the opening of the bearing member 91 and be connected to the electrode 92. The connecting member 93 may be made of other conductive materials such as iron, copper, conductive resin, etc., and is not limited thereto.

It is to be understood that the bearing member 91 may cover the contact surface of the developing roller shaft 21 and the connector 93 as long as the connector 93 can be connected to the electrode 92.

With continued reference to fig. 6, 7 and 12, the detecting assembly 5 includes a rotating member 52 and a detecting member 51. The rotary member 52 includes a rotation shaft 523, a gear portion 522, an abutting portion 524, and a driving portion 521, wherein the gear portion 522 is disposed around an outer circumference of the rotation shaft 523, and the gear portion 522 is between the driving portion 521 and the abutting portion 524.

Specifically, the first sidewall 10a is provided with a support shaft 115 or a support hole, and the rotating shaft 523 is sleeved on the periphery of the support shaft 115 or the rotating shaft 523 is inserted into the support hole, so that the rotating member 52 is movably disposed on the first sidewall 10 a. The gear portion 522 is meshed with the second gear 781, and the second gear 781 can drive the gear portion 522 to rotate, so that the rotating member 52 rotates in the first direction D1. Wherein the first direction D1 is counterclockwise as viewed in fig. 7.

Gear portion 522 is including having tooth portion and no tooth portion, and under the initial condition, second gear 781 with have tooth portion to mesh mutually, drive gear portion 522 when second gear 781 and rotate the back along first direction D1, no tooth portion rotates to the position that is close to second gear 781 for second gear 781 with have tooth portion to break away from the meshing, second gear 781 no longer drives gear portion 522 and rotates.

The developing cartridge 100 further includes an end cap 4 disposed on the first side wall 10a, the end cap 4 is provided with a through hole 40, and the side wall of the end cap 4 away from the cartridge body 1 is provided with a mounting post 41 at a position close to the through hole 40. The detecting member 51 includes a detecting portion 512 and a rotating shaft portion 513, wherein a mounting hole is formed in the rotating shaft portion 513, and the mounting post 41 can be inserted into the mounting hole, so that the detecting portion 512 can rotate around the mounting post 41. At least a portion of the detecting portion 512 may extend into the through opening 40 along the third direction D3, so that during the rotation of the driving portion 521 carried by the gear portion 522, the driving portion 521 may contact with the portion of the detecting portion 512 extending into the through opening 40, thereby carrying the detecting portion 512 to rotate around the mounting post 41 and rotate from the non-detected position to the detected position.

The detecting assembly 5 further includes a first elastic member 53 and a second elastic member 54, wherein the first elastic member 53 is disposed between the rotating member 52 and the end cap 4 or the box body 1, and the second elastic member 54 is disposed between the detecting member 51 and the end cap 4.

The first elastic member 53 and/or the second elastic member 54 may be a spring, a leaf spring, a torsion spring, or other elastic members, and are not limited herein.

When a new developing cartridge 100 is mounted in the electronic image forming apparatus, the driving force receiving member 71 receives the driving force from the electronic image forming apparatus, and the second gear 781 rotates the gear portion 522 in the first direction D1; in the process that the rotating member 52 rotates along the first direction D1, the driving part 521 first contacts with a portion of the detecting part 512 extending into the through opening 40 along the third direction D3, and drives the detecting part 512 to rotate around the mounting column 41 along the direction opposite to the first direction D1, so that the detecting part 512 rotates from the non-detected position to the detected position, and at this time, the detecting part 512 presses the detecting device arranged in the electronic imaging device to the maximum extent, and the electronic imaging device can detect a primary optical signal; the gear portion 522 continues to rotate in the first direction D1 by the driving force, the driving portion 521 is out of contact with the detecting portion 512, and the detecting portion 512 rotates to the non-detected position in the first direction D1 by the elastic force of the second elastic member 54. When the gear portion 522 rotates to the non-toothed portion arranged on the gear portion 522 to be in contact with the second gear 781, the toothed portions arranged on the second gear 781 and the gear portion 522 are disengaged, and at this time, the second gear 781 no longer drives the gear portion 522 to rotate, so that the electronic imaging device is realized to identify the developing cartridge 100.

Before the developer cartridge 100 after being replenished with the developer is mounted to the electronic image forming apparatus, a user first needs to apply a pulling force to the rotary member 52 in a direction opposite to the third direction D3, and the rotary member 52 moves away from the first side wall 10a, so that the rotary member 52 is disengaged from the second gear 781, and the problem that the rotary member 52 is difficult to rotate and reset due to the fact that the rotary member 52 is engaged with the second gear 781 is avoided; then, a torsion force in the opposite direction of the first direction D1 is applied to the rotary member 52, so that the rotary member 52 rotates back to the initial position in the opposite direction of the first direction D1; finally, the user releases the pulling force and the twisting force applied to the rotating member 52, and the rotating member 52 can be driven to move towards the direction close to the first side wall 10a under the elastic action of the first elastic member 53, so that the second gear 781 is meshed with the toothed part arranged on the gear part 522, and finally, the reset operation of the rotating member 52 is realized.

The first sidewall 10a of the cartridge body 1 is correspondingly provided with the stopper 116, and the abutting portion 524 can abut against the stopper 116 when the rotary member 52 rotates in the opposite direction of the first direction D1, so that the rotation angle of the rotary member 52 can be controlled, the rotary member 52 can be completely reset, and the rotary member 52 can be prevented from being reversed during the transportation of the developing cartridge 100.

The detecting member 51 further includes a flexible portion 511, the flexible portion 511 is disposed at an end of the detecting member 51 away from the cartridge body 1, and when the developing cartridge 100 is mounted in the electrophotographic image forming apparatus, the flexible portion 511 is deformed by a force so as to avoid interference with the electrophotographic image forming apparatus.

Specifically, the flexible portion 511 may be fixed to an end of the detection portion 512 away from the first sidewall 10a by gluing, welding, or clipping. The flexible portion 511 may be made of a material having a certain elasticity, such as rubber, polyvinyl chloride, or nitrile, and is not limited herein.

The developing cartridge 100 further includes a protective cover (not shown in the drawings) for protecting the developing roller 2 during transportation of the developing cartridge 100.

Specifically, the protective cover has two side surfaces perpendicular to the axial direction of the developing roller 2, and the distance between the two side surfaces is increased continuously during the mounting of the protective cover to the developing cartridge 100, and after the mounting is completed, the distance between the two side surfaces is smaller than the maximum value. The portion of the protective cover covering the paper guide rib 16 of the developing cartridge 100 is a flat surface.

Example 2

Referring to fig. 13 to 15, the structure of the developing cartridge 100 in embodiment 1 is basically the same, except that the end cap 4 is provided with a sliding groove 42 along the second direction D2, and the detecting member 51 is clamped in the sliding groove 42.

Specifically, the end of the sliding groove 42 along the second direction D2 is provided with a first connecting column 43, the detecting member 51 includes a detecting part 512 and a second connecting column 514, and at least part of the detecting part 512 can be inserted into the sliding groove 42. The second elastic member 54 is connected between the first connecting post 43 and the second connecting post 514. The sliding groove 42 may be any other shape, such as a linear groove, an L-shaped groove, or a T-shaped groove, as long as the detecting element 51 can be driven by the rotating element 52 to translate along the sliding groove 42, which is not limited herein.

The second elastic member 54 can be respectively sleeved on the first connecting post 43 and the second connecting post 514; or, the first connecting column 43 and/or the second connecting column 514 are provided with insertion holes for inserting the second elastic members 54, so that not only the installation and positioning functions can be achieved, but also the second elastic members 54 can be stably connected between the first connecting column 43 and the second connecting column 514.

When a new developing cartridge 100 is mounted in the electronic image forming apparatus, the driving force receiving member 71 receives the driving force from the electronic image forming apparatus, the second gear 781 drives the gear portion 522 to rotate in the first direction D1, and during the rotation of the driving portion 521 in the first direction D1, the driving portion 521 first contacts a portion of the detecting portion 512 extending into the sliding groove 42 in the third direction D3, drives the detecting portion 512 to slide in the sliding groove 42 in the direction opposite to the second direction D2, so that the detecting portion 512 translates from the non-detected position to the detected position, at this time, the extent that the detecting portion 512 presses the detecting device provided in the electronic image forming apparatus reaches the maximum, and the electronic image forming apparatus can detect a primary optical signal; the gear portion 522 continues to rotate in the first direction D1 by the driving force, the driving portion 521 is out of contact with the detecting portion 512, and the detected position detecting portion 512 translates to the non-detected position in the second direction D2 by the elastic force of the second elastic member 54. When the gear portion 522 rotates to the non-toothed portion arranged on the gear portion 522 to be in contact with the second gear 781, the toothed portions arranged on the second gear 781 and the gear portion 522 are disengaged, and at this time, the second gear 781 no longer drives the gear portion 522 to rotate, so that the electronic imaging device is realized to identify the developing cartridge 100.

The resetting operation of the rotating member 52 in the embodiment of the present application is the same as that in embodiment 1, and is not described herein again.

Compared with the prior art, in the developing cartridge 100 provided by the utility model, before the developing cartridge 100 after being replenished with the developer needs to be installed in the electronic imaging device, a user can firstly apply a lifting force to the rotating member 52, and the rotating member 52 can move away from the cartridge body 1 after receiving the lifting force; then, a torsion force is applied to the rotary member 52, and the rotary member 52 can rotate in the opposite direction of the first direction D1 after receiving the torsion force; finally, after the lifting force and the twisting force applied to the rotating member 52 are released, the first elastic member 53 can drive the rotating member 52 to move towards the direction close to the box body 1; since the rotary member 52 is moved away from the cartridge body 1 by the pulling force, the rotary member 52 can be prevented from engaging with other components in the developing cartridge 100 during the rotation in the opposite direction of the first direction D1, which is beneficial to the return reset of the rotary member 52; meanwhile, during the rotation of the rotation member 52 in the direction opposite to the first direction D1, the limiting member 116 disposed on the cartridge body 1 may limit the rotation angle of the rotation member 52 in the direction opposite to the first direction D1, so that the complete reset of the rotation member 52 may be ensured.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (10)

1. A developing box is detachably arranged on an electronic imaging device and comprises a box body and a detection assembly, and is characterized in that the detection assembly comprises a rotating piece, a detection piece and a first elastic piece, wherein the rotating piece rotates along a first direction under the action of external force and simultaneously drives the detection piece to move from a non-detected position to a detected position;

when the developing cartridge at the detected position needs to perform the detection process again, the rotating member firstly moves towards the direction away from the cartridge body under the action of external force and then rotates along the direction opposite to the first direction; when the rotating part is relieved of stress, the first elastic part can drive the rotating part to move towards the direction close to the box body to abut against a limiting part arranged on the box body.

2. A developing cartridge according to claim 1, wherein said rotary member includes a rotary shaft, a gear portion, a drive portion and an abutting portion, wherein said gear portion is disposed around an outer periphery of said rotary shaft with said gear portion between said drive portion and said abutting portion;

in the process that the rotating member rotates in the opposite direction of the first direction, the abutting portion may abut against the limiting member.

3. The developing cartridge according to claim 2, further comprising an end cap connected to the cartridge body, wherein a mounting post is provided on a side wall of the end cap away from the cartridge body;

the detection piece comprises a detection part and a rotating shaft part, wherein a mounting hole is formed in the rotating shaft part, and the mounting column can be inserted into the mounting hole;

in the process that the rotating piece rotates along the first direction, the driving part can be in contact with the detection part so as to drive the detection piece to rotate around the mounting column and move from a non-detected position to a detected position.

4. The developing cartridge according to claim 2, further comprising an end cap connected to the cartridge body, wherein a sliding groove is formed in the end cap along the second direction, and the detecting member is engaged with the sliding groove;

in the process that the rotating piece rotates along the first direction, the driving part can be in contact with the part of the detecting piece inserted into the sliding groove so as to drive the detecting piece to move from the non-detected position to the detected position along the sliding groove.

5. A developing cartridge according to claim 3 or 4, wherein said detecting member further includes a deformable flexible portion provided at an end portion of said detecting member remote from said cartridge body.

6. A developing cartridge according to claim 3 or 4, wherein said detecting member includes a second elastic member, said second elastic member being disposed between said detecting member and said end cap or said cartridge body, for driving said detecting member to move from said detected position to said non-detected position.

7. A developing cartridge according to claim 3 or 4, wherein said first elastic member is provided between said rotary member and said end cap or said cartridge body.

8. The developing cartridge according to claim 1, wherein the cartridge body comprises a cartridge body and a cartridge cover, wherein an accommodating chamber is provided in the cartridge body, and the cartridge cover is connected to the cartridge body to close the accommodating chamber;

the box body surrounds the chamber still is equipped with the crossbeam, the cang gai can with the crossbeam butt.

9. A developing cartridge according to claim 1 or 8, further comprising a power assembly, and said power assembly includes a driving force receiving member for receiving a driving force from said electronic image forming apparatus to rotate said rotary member; one end of the driving force receiving piece, which is close to the box body, is provided with a hollow cylindrical inner cavity with a smooth inner wall;

still be equipped with the support on the box body, the support includes base plate and installation department, the installation department certainly the base plate is along keeping away from the direction of box body extends, just the cover is located to driving force receiving piece on the installation department.

10. A developing cartridge according to claim 9, wherein said frame further includes a fastening portion, said frame is connected to said cartridge body through said fastening portion, and said fastening portion is a protrusion extending from said base plate in a direction close to said cartridge body and/or a fastening hole formed in said base plate.

Images