Developing cartridge

Abstract

The developing box provided by the utility model can be detachably mounted on the imaging equipment, the developing box comprises a developing shell and a developing roller rotatably arranged in the developing shell, the developing shell is used for accommodating a developing agent, and the developing roller is used for supplying the developing agent to the outside of the developing box. The developing roller can rotate around a rotation axis extending in the left-right direction; the developing box further comprises an acting part and a guide piece used for guiding the developing box to be installed, and at least one part of the acting part enters the guide piece to enhance the strength of the guide piece; the guide piece can prevent the developing box from being broken or directly broken when the developing box accidentally falls off.

Description

Technical Field

[0001] The utility model relates to the technical field of electrophotographic imaging, and particularly relates to a developing cartridge detachably mounted in an electrophotographic imaging device. Background Art

[0002] The developing cartridge can be detachably mounted in the electrophotographic imaging device. The developing cartridge includes a developing housing and a developing roller disposed in the developing housing. The developing housing is used for accommodating a developer, and the developing roller is used for supplying the developer to the outside of the developing cartridge. Taking the extending direction of the developing roller as the first direction, a driving member is provided at one end of the developing cartridge in the first direction. The driving member is used for receiving a driving force from the imaging device to drive the developing roller to rotate. Along the first direction, the end of the developing cartridge where the driving member is provided is the driving end, and the other end of the developing cartridge is the non-driving end.

[0003] The developing cartridge further includes a first end cap and a second end cap respectively connected to the developing housing. The first end cap is located at the driving end, and the second end cap is located at the non-driving end. In addition, the developing cartridge further includes at least one guiding member for guiding the correct installation of the developing cartridge. The guiding member is disposed on at least one of the first end cap and the second end cap. During the installation process of the developing cartridge, the first guiding member and the second guiding member cooperate with components in the imaging device.

[0004] The guiding member is disposed to extend in a direction away from the developing housing. When the developing cartridge drops accidentally, the guiding member may break or directly disconnect. Summary of the Utility Model

[0005] The developing cartridge provided by the utility model can solve at least one of the above technical problems, and the specific solutions are as follows:

[0006] A developing cartridge is detachably mounted to an imaging device. The developing cartridge includes a developing housing and a developing roller rotatably disposed in the developing housing. The developing housing is used for accommodating a developer, and the developing roller is used for supplying the developer to the outside of the developing cartridge. The developing roller can rotate around a rotation axis extending in the left-right direction. The developing cartridge further includes an acting portion and a guiding member for guiding the installation of the developing cartridge. At least a part of the acting portion enters the guiding member to enhance the strength of the guiding member.

[0007] The guiding member includes a guiding portion for cooperating with at least a part of the acting portion. The guiding portion has an opening facing the developing housing, and at least a part of the acting portion can enter the guiding portion through the opening. The guiding portion is disposed as a hollow columnar body. The guiding portion is a cylindrical body or a polygonal columnar body.

[0008] The acting portion at least includes a portion to be cooperated connected to the developing housing, and at least a part of the portion to be cooperated enters the guiding portion.

[0009] The developing cartridge further includes end caps provided at at least one of both ends of the developing housing and a support member located between the end caps and the developing housing. The support member is used to support components in the developing cartridge. The acting portion at least includes a mating portion connected to the support member, and at least a part of the mating portion enters the guiding portion.

[0010] The acting portion further includes a second main body, and the second main body is used to connect the mating portion and the developing housing / support member.

[0011] In the left - right direction, the mating portion is provided as a protrusion extending in a direction away from the developing housing from at least one of the developing housing, the support member, and the second main body; the mating portion is provided as a cone.

[0012] Compared with the prior art, in the developing cartridge provided by the present utility model, a guiding portion is provided in the guiding member, and an acting portion is also provided in the developing cartridge. At least a part of the acting portion cooperates with the guiding portion. Among them, the acting portion includes a mating portion connected to at least one of the developing housing and the support member, and the guiding portion is provided as a hollow columnar body. After at least a part of the mating portion cooperates with the guiding portion, the strength of the guiding member is increased. Such a setting can prevent the guiding member from breaking or directly disconnecting when the developing cartridge accidentally drops. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a perspective view of the developing cartridge related to the present utility model.

[0014] Figure 2 is an exploded view of some components of the developing cartridge related to the present utility model after hiding the upper housing.

[0015] Figure 3 is a perspective view of some components of the developing cartridge related to the present utility model.

[0016] Figure 4 is a plan view of the seal of the developing cartridge related to the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0018] The developing cartridge 100 can be detachably mounted to an imaging device, such as Figure 1As shown, the developing cartridge 100 includes a developing housing 10 and a developing roller 20 located in the developing housing 10. The developing housing 10 is used to contain a developer, and the developing roller 20 is used to supply the developer to the outside of the developing cartridge 100. The developing roller 20 is capable of rotating about a rotation axis; the extending direction of the rotation axis of the developing roller 20 is the first direction, that is, the left-right direction. Taking the attitude when the developing cartridge 100 is installed in the imaging device as a reference, the gravity direction of the developing cartridge 100 is downward, the direction opposite to the gravity direction is the upper side of the developing cartridge 100, and the up-down direction of the developing cartridge 100 can also be referred to as the second direction. The left-right direction intersects with the up-down direction.

[0019] As Figure 1 and Figure 2 shown, the developing housing 10 includes an upper housing 11, a lower housing 12, and a receiving chamber 13 formed between the upper housing 11 and the lower housing 12. The upper housing 11 and the lower housing 12 are combined in the up-down direction, and the receiving chamber 13 is used to contain the developer.

[0020] A driving member 30 is provided at one end of the developing cartridge 100 in the left-right direction. The driving member 30 is used to receive a driving force from the imaging device to drive the developing roller 20 to rotate. Along the left-right direction, the end of the developing cartridge 100 where the driving member 30 is provided is the driving end, and the other end of the developing cartridge 100 is the non-driving end; a powder inlet 14 is provided at one end of the developing cartridge 100 at the driving end and the non-driving end. An operator can supplement the developer into the receiving chamber 13 through the powder inlet 14.

[0021] As Figure 1 、 Figure 2 and Figure 3 shown, at least one end cap connected to the developing housing 10 is further provided in the developing cartridge 100. The end cap is located at at least one of the two ends of the developing housing 10. When there are two end caps, for example: a first end cap 40 provided at the driving end and a second end cap 50 provided at the non-driving end. Along the left-right direction, the first end cap 40 and the second end cap 50 are respectively located at the two ends of the developing housing 10. The following takes the powder inlet 14 being provided at the non-driving end as an example for description. A through hole 51 matching the powder inlet 14 is provided on the second end cap 50, and the powder inlet 14 is exposed to the outside of the developing cartridge 100 through the through hole 51.

[0022] In addition, as Figure 3 and Figure 4As shown, the developing cartridge 100 is further provided with a seal 60 for sealing the powder inlet 14 and the through hole 51. The seal 60 includes a first body 61 and a handle 62 that are connected to each other. The handle 62 extends in a direction away from the first body 61. The first body 61 is used to cover the powder inlet 14 and the through hole 51, and the handle 62 facilitates the user to disassemble and install the seal 60. An avoidance groove 52 is provided on the second end cap 50. When the seal 60 seals the powder inlet 14 and the through hole 51, the handle 62 is located in the avoidance groove 52, and the avoidance groove 52 is provided as a groove that is recessed toward the developing housing 10.

[0023] In some embodiments, in a plane perpendicular to the left-right direction, the handle 62 can extend in any direction. For example, the handle 62 can extend upward or downward.

[0024] As Figure 1 、 Figure 2 and Figure 3 As shown, the developing cartridge 100 further includes at least one guiding member for guiding the installation of the developing cartridge 100. For example, a first guiding member 41 provided at the driving end and a second guiding member 53 provided at the non-driving end. The structures of the first guiding member 41 and the second guiding member 53 are the same. In the following, one of the guiding members will be taken as an example for description. During the installation process of the developing cartridge 100, through the cooperation of the guiding member with the components in the imaging device, the developing cartridge 100 can be correctly installed.

[0025] Specifically, the guiding member includes a guiding portion 532 that cooperates with the components in the imaging device. The guiding portion 532 is provided as a columnar body that extends from the end cap in a direction away from the developing housing 10, and the columnar body is provided as a hollow body. The guiding portion 532 has an opening 535 facing the developing housing 10, and other components of the developing cartridge 100 can enter the interior of the guiding portion 532 through the opening 535.

[0026] In some embodiments, the guiding portion 532 can be provided as a hollow cylinder or a hollow polygonal cylinder.

[0027] In some embodiments, the developing cartridge 100 further includes a support member located between the end cap and the developing housing 10. The support member is used to support the components in the developing cartridge 100. For example, the developing roller 20 or the powder outlet blade 80; the support member and the developing housing 10 can be integrally formed or separately formed.

[0028] The developing cartridge 100 is further provided with at least one acting portion 531. At least a part of the acting portion 531 enters the guiding member to enhance the strength of the guiding member. Specifically, at least a part of the acting portion 531 cooperates with the guiding portion 532. In some embodiments, at least a part of the acting portion 531 cooperates with the guiding portion 532 in the left-right direction. A mating portion 534 for connecting to at least one of the developing housing 10 and the support member is provided on the acting portion 531, so that the strength of the acting portion 531 is increased. The mating portion 534 and the developing housing 10 / support member may be integrally formed or separately formed; in some embodiments, in the left-right direction, the mating portion 534 is provided as a protrusion extending from at least one of the developing housing 10 and the support member in a direction away from the developing housing 10. At least a part of the acting portion 531 / mating portion 534 enters the interior of the guiding portion 532 through the opening 535, that is, at least a part of the mating portion 534 cooperates with the guiding portion 532 in the left-right direction, so that the strength of the guiding member is increased.

[0029] In some embodiments, at least a part of the acting portion 531 may also cooperate with the guiding portion 532 in the up-down direction / front-back direction.

[0030] In some embodiments, the acting portion 531 further includes a second main body 533 for connecting the mating portion 534 and the developing housing 10 / support member. The mating portion 534 and the second main body 533 may be integrally formed or separately formed. In the left-right direction, the mating portion 534 may also be provided as a protrusion extending from the second main body 533 in a direction away from the developing housing 10; the second main body 533 and the developing housing 10 / support member may be integrally formed or separately formed.

[0031] In some embodiments, the mating portion 534 is provided as a cone.

[0032] [Beneficial effects]

[0033] Compared with the prior art, in the developing cartridge 100 provided by the present utility model, the guiding member includes a guiding portion 532, and the developing cartridge 100 is also provided with an acting portion 531. At least a part of the acting portion 531 cooperates with the guiding portion 532. Among them, the acting portion 531 includes a mating portion 534 connected to at least one of the developing housing 10 and the support member. And, the guiding portion 532 is provided as a hollow columnar body. After at least a part of the mating portion 534 cooperates with the guiding portion 532, the strength of the guiding member is increased. Such a setting can prevent the guiding member from breaking or directly disconnecting when the developing cartridge accidentally drops.

Claims

1. A developing cartridge, detachably mounted to an image forming apparatus, comprising a developing housing and a developing roller rotatably disposed in the developing housing, the developing housing being used to contain a developer, the developing roller being used to supply the developer to the outside of the developing cartridge, and the developing roller being rotatable about a rotation axis extending in a left-right direction; It is characterized in that The developing box further comprises an acting portion and a guide member for guiding the installation of the developing box, and at least a part of the acting portion enters the guide member to enhance the strength of the guide member.

2. The developing cartridge according to claim 1, characterized in that: The guide member includes a guide portion for cooperating with at least a part of the acting portion, the guide portion has an opening facing the developing housing, and at least a part of the acting portion can enter the guide portion through the opening.

3. The developing cartridge according to claim 2, characterized in that: The guide portion is configured as a hollow column.

4. The developing cartridge according to claim 3, characterized in that: The guiding portion is a cylinder or a polygonal cylinder.

5. The developing cartridge according to claim 2, characterized in that: The action portion at least includes an engaged portion connected to the developing housing, and at least a portion of the engaged portion enters the guiding portion.

6. The developing cartridge according to claim 2, characterized in that: The developing box also includes an end cover arranged at at least one of the two ends of the developing shell and a support member located between the end cover and the developing shell, the support member is used to support the components in the developing box, and the action part at least includes a mated part connected to the support member, and at least a part of the mated part enters the guide part.

7. The developing cartridge according to claim 5 or 6, characterized in that: The acting portion further comprises a second main body, and the second main body is used for connecting the engaged portion and the developing housing / supporting member.

8. The developing cartridge according to claim 7, wherein: In the left-right direction, the engaged portion is configured as a protrusion extending from at least one of the developing housing, the support member and the second body toward a direction away from the developing housing.

9. The developing cartridge according to claim 8, characterized in that: The engaged portion is configured as a cone.

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