Processing box

Abstract

The utility model relates to a processing box detachably mounted in imaging equipment, which comprises a developing unit, a processing unit, a driving unit, a driving unit, a driving unit, a driving unit and a driving unit, wherein the developing unit comprises a developing shell and a developing roller rotatably arranged in the developing shell; the photosensitive unit comprises a photosensitive shell and a photosensitive drum rotatably arranged in the photosensitive shell; the first driving force receiving piece is used for receiving driving force output by the imaging equipment so as to directly or indirectly drive the developing roller to rotate, the first driving force receiving piece comprises a first driving force receiving part and a shaft part which are integrally formed, and the shaft part is used for supporting the first driving force receiving part; the second driving force receiving part is used for receiving the driving force output by the imaging equipment so as to directly drive the photosensitive drum to rotate; the first end cover is arranged at the longitudinal tail end of the processing box and is provided with a first through hole for exposing the first driving force receiving piece and a second through hole for exposing the second driving force receiving piece; the inner diameter of the first through hole is equal to that of the second through hole; the design can enhance the strength of the first end cover.

Description

Technical Field

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

[0002] The processing box is an essential component of the imaging device, and the processing box includes a developing unit for accommodating toner and a photosensitive unit for accommodating waste toner; the photosensitive unit includes a photosensitive housing and a photosensitive drum rotatably arranged in the photosensitive housing, and the developing unit includes a developing housing and a developing roller rotatably arranged in the developing housing, and the developing roller is used to supply toner to the photosensitive drum, thereby developing the electrostatic latent image formed on the surface of the photosensitive drum; the processing box also includes a first driving force receiving member and a second driving force receiving member for receiving the driving force output by the driving force output member in the imaging device, the first driving force receiving member directly or indirectly drives the developing roller to rotate, and the second driving force receiving member directly drives the photosensitive drum to rotate.

[0003] In the prior art, the processing box also includes a first end cover arranged at the longitudinal end, and the first end cover is provided with a first through hole for exposing the first driving force receiving member and a second through hole for exposing the second driving force receiving member. However, the inner diameter of the first through hole is different from the inner diameter of the second through hole, which will result in the strength of the first end cover cannot be guaranteed. Utility Model Content

[0004] The utility model provides a processing box adopting the following technical solutions to enhance the strength of the first end cover, specifically:

[0005] The processing box is detachably installed in the imaging device; the processing box includes: a developing unit, including a developing shell for accommodating carbon powder, a developing roller rotatably arranged in the developing shell, the developing roller is used to carry carbon powder, and the rotation axis of the developing roller extends in the longitudinal direction; a photosensitive unit, including a photosensitive shell and a photosensitive drum rotatably arranged in the photosensitive shell, and the developing roller supplies carbon powder to the photosensitive drum; a first driving force receiving member, used to receive the driving force output by the imaging device to directly or indirectly drive the developing roller to rotate, the first driving force receiving member includes an integrally formed first driving force receiving portion and a shaft portion, the shaft portion is used to support the first driving force receiving portion; a second driving force receiving member, used to receive the driving force output by the imaging device to directly drive the photosensitive drum to rotate; a first end cover, provided at the longitudinal end of the processing box, is provided with a first through hole and a second through hole, the first driving force receiving member is exposed through the first through hole, and the second driving force receiving member is exposed through the second through hole; the inner diameter of the first through hole is equal to the inner diameter of the second through hole.

[0006] Furthermore, the processing box also includes a driving gear connected to the shaft portion, which is used to transmit the driving force received by the first driving force receiving member to other components of the developing unit. Along the longitudinal direction, the shaft portion is located between the driving gear and the first driving force receiving portion.

[0007] Furthermore, the processing box includes a protective cover arranged at one longitudinal end, the protective cover has a protective cover body, a third through hole formed on the protective cover body and an extension portion arranged around the circumference of the first through hole, and the outer diameter of the shaft portion is equivalent to the inner diameter of the extension portion.

[0008] Further, when the process cartridge is assembled, the first through hole supports at least a portion of the extension portion; and when viewing the process cartridge along a front-to-rear direction intersecting the longitudinal direction, the first driving force receiving portion protrudes from the first end cover.

[0009] Furthermore, the first driving force receiving portion includes a first sub-receiving portion, a second sub-receiving portion and a third sub-receiving portion, and the diameters of the circumscribed circles of the first sub-receiving portion, the second sub-receiving portion and the third sub-receiving portion are equivalent to the outer diameter of the shaft portion.

[0010] Further, the first sub-receiving portion, the second sub-receiving portion and the third sub-receiving portion are formed integrally.

[0011] Further, the first sub-receiving portion, the second sub-receiving portion and the third sub-receiving portion are formed separately.

[0012] Further, the radially outermost surface of the first sub-receiving portion, the radially outermost surface of the second sub-receiving portion, and the radially outermost surface of the third sub-receiving portion are all configured as curved surfaces.

[0013] Further, the radially outermost surface of the first sub-receiving portion, the radially outermost surface of the second sub-receiving portion, and the radially outermost surface of the third sub-receiving portion are all connected to the outer circumferential surface of the shaft portion.

[0014] Furthermore, along the rotation direction of the first driving force receiving member, the radially outermost surfaces of the first sub-receiving portion, the radially outermost surfaces of the second sub-receiving portion and the radially outermost surfaces of the third sub-receiving portion are all on the same circumferential surface as the outer circumferential surface of the shaft portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the processing box involved in the utility model.

[0016] Figure 2 This is an exploded view of some components in the processing box involved in the utility model.

[0017] Figure 3 It is a schematic diagram of the processing box involved in the utility model observed along the longitudinal direction.

[0018] Figure 4 It is a schematic diagram of the combination of the first driving force receiving member and the driving gear involved in the present utility model.

[0019] Figure 5 It is a schematic diagram of the driving end of the processing box involved in the utility model after some components are hidden. DETAILED DESCRIPTION

[0020] The structure and other aspects of the processing box involved in the present invention are further described in detail below through specific implementations and with reference to the accompanying drawings.

[0021] like Figure 1 and Figure 2 As shown, the processing box 100 can be detachably installed in an electronic photographic imaging device (hereinafter referred to as the "imaging device"), and the processing box 100 includes a developing unit 1 and a photosensitive unit 2 that are combined with each other, the developing unit 1 includes a developing housing 10 for accommodating carbon powder and a developing roller 11 rotatably arranged in the developing housing 10, and the developing roller 11 is used to carry carbon powder; the photosensitive unit 2 includes a photosensitive housing 20 and a photosensitive drum 21 rotatably arranged in the photosensitive housing 20, and the developing roller 11 supplies carbon powder to the photosensitive drum 21 to develop the electrostatic latent image formed on the surface of the photosensitive drum 21.

[0022] To make the following description clearer, the extension direction of the rotation axis L1 of the developing roller 11 is defined as the left-right direction / longitudinal direction, the arrangement direction of the developing unit 1 and the photosensitive unit 2 is the front-to-back direction, the direction in which the developing unit 1 points to the photosensitive unit 2 is the front, and the side opposite to the front is the rear; the side of the processing box 100 where the developing roller 11 and the photosensitive drum 21 are not installed points to the side where the developing roller 11 and the photosensitive drum 21 are installed is the bottom, and the direction opposite to the bottom is the top.

[0023] like Figure 1 and Figure 2As shown, the processing box 100 also includes a first driving force receiving member 30 and a second driving force receiving member 40 for receiving the driving force output by the imaging device, the first driving force receiving member 30 directly or indirectly drives the developing roller 11 to rotate around the rotation axis L1, and the second driving force receiving member 40 directly drives the photosensitive drum 21 to rotate around the rotation axis L2. Along the left and right directions, the end of the processing box 100 that receives the driving force from the imaging device is defined as the driving end / left, and the end opposite to the driving end is defined as the non-driving end / right; along the left and right directions, the processing box 100 also has a first end cover 51 arranged at the driving end and a second end cover 52 arranged at the non-driving end, the first driving force receiving member 30 and the second driving force receiving member 40 are both exposed through the first end cover 51; the imaging device The imaging unit 1 and the photosensitive unit 2 are connected by a first end cover 51 and a second end cover 52. The first end cover 51 and the second end cover 52 can be formed separately relative to the photosensitive housing 20 or the developing housing 10, or can be formed integrally with the photosensitive housing 20 or the developing housing 10. When the first end cover 51 and the second end cover 52 are both formed integrally with the photosensitive housing 20 or the developing housing 10, the first end cover 51 and the second end cover 52 can be regarded as part of the photosensitive unit 2 or the developing unit 1; the extension direction of the rotation axis L3 of the first driving force receiving member 30 and the extension direction of the rotation axis L2 of the photosensitive drum 21 / the second driving force receiving member 40 are both parallel to the longitudinal direction; the following description is based on the example that the first end cover 51 and the second end cover 52 are both formed integrally with the photosensitive housing 20.

[0024] like Figure 1 、 Figure 2 and Figure 3 As shown, further, the first end cover 51 has a first end cover body 510 and a first through hole 511 and a second through hole 512 formed on the first end cover body 510, the first driving force receiving member 30 is exposed through the first through hole 511, and the second driving force receiving member 40 is exposed through the second through hole 512; the inner diameter d1 of the first through hole 511 is equal to the inner diameter d2 of the second through hole 512; compared with the prior art in which the inner diameter d1 of the first through hole 511 is larger than the inner diameter d2 of the second through hole 512, in the present application, while the inner diameter d2 of the second through hole 512 remains unchanged compared with the prior art, the inner diameter d1 of the first through hole 511 is the same as the inner diameter d2 of the second through hole 512, which can enhance the strength of the first end cover 51.

[0025] like Figure 2 and Figure 4As shown, the first driving force receiving member 30 includes an integrally formed first driving force receiving portion 31 and a shaft portion 32. The first driving force receiving portion 31 is used to cooperate with the driving force output member in the imaging device to receive the driving force. The shaft portion 32 is used to support the first driving force receiving portion 31 and enhance the strength of the first driving force receiving portion 31 to prevent the first driving force receiving portion 31 from breaking during the process of combining with the driving force output member or the process of the first driving force receiving portion 31 being driven and rotated by the driving force output member. The processing box 100 also includes a driving force transmission component for transmitting the driving force, and the driving force transmission component includes at least a driving gear 33 that meshes with each other. and the developing gear 13, the driving gear 33 is connected to the shaft 32, and is used to transmit the driving force received by the first driving force receiving member 30 to other components in the developing unit 1. The developing gear 13 is arranged at the longitudinal end of the developing roller 11, and the shaft 32 is used to transmit the driving force received by the first driving force receiving portion 31 to the driving force transmission assembly to drive the developing roller 11 and other components to rotate. Along the longitudinal direction, the shaft 32 is located between the first driving force receiving portion 31 and the driving gear 33; the first driving force receiving portion 31 and the shaft 32 are formed integrally, which can not only further enhance the strength of the first driving force receiving portion 31, but also facilitate the production of the first driving force receiving member 30.

[0026] like Figure 4As shown, the first driving force receiving portion 31 includes a first sub-receiving portion 31a, a second sub-receiving portion 31b and a third sub-receiving portion 31c that are connected to each other. The diameters of the circumscribed circles of the first sub-receiving portion 31a, the second sub-receiving portion 31b and the third sub-receiving portion 31c are equivalent to the size of the outer diameter of the shaft portion 32. Furthermore, the first sub-receiving portion 31a has a first radial outermost surface 311, the second sub-receiving portion 31b has a second radial outermost surface 312, and the third sub-receiving portion 31c has a third radial outermost surface 313. The first radial outermost surface 311, the second radial outermost surface 312 and the third radial outermost surface 313 are all configured as curved surfaces to increase the contact area between the first driving force receiving member 30 and the driving force output member, thereby increasing the friction between the two, so that the driving force output member can more stably drive the first driving force receiving member 30 to rotate and maintain The combination stability of the driving force output member and the first driving force receiving member 30; further, the first radial outermost surface 311, the second radial outermost surface 312 and the third radial outermost surface 313 are all connected to the outer circumferential surface 321 of the shaft portion 32, and along the rotation direction R of the first driving force receiving member 30, the first radial outermost surface 311, the second radial outermost surface 312, the third radial outermost surface 313 and the outer circumferential surface 321 of the shaft portion 32 are on the same circumferential surface. This structure is not only conducive to simplifying the structure of the first driving force receiving member 30 and facilitating the production of the first driving force receiving member 30, but also conducive to the rapid assembly of the processing box 100; preferably, the first sub-receiving part 31a, the second sub-receiving part 31b and the third sub-receiving part 31c are formed as one piece, which can further enhance the strength of the first driving force receiving part 31, thereby more stably receiving the driving force.

[0027] In some embodiments, the first sub-receiving portion 31a, the second sub-receiving portion 31b and the third sub-receiving portion 31c can also be formed separately. In this case, the first sub-receiving portion 31a, the second sub-receiving portion 31b and the third sub-receiving portion 31c all protrude from the shaft portion 32 in a direction away from the driving gear 33.

[0028] like Figure 2 and Figure 5As shown, the processing box 100 also includes a protective cover 12 arranged at one longitudinal end for protecting at least a part of the driving force transmission component. The protective cover 12 has a protective cover body 120 and a third through hole 121 formed on the protective cover body 120. The protective cover 12 also has an extension portion 122 extending from the protective cover body 120. The extension portion 122 is arranged around the circumference of the third through hole 121. The outer diameter of the shaft portion 32 and the inner diameter of the extension portion 122 have the same size. When the protective cover 12 is installed, the extension portion 122 is sleeved on the radial periphery of the shaft portion 32 to support the shaft portion 32. Even if the first driving force receiving portion 31 tends to swing after receiving the driving force, causing the shaft portion 32 to have a tendency to swing following the first driving force receiving portion 31, the tendency of the shaft portion 32 to swing can be suppressed by the abutment between the shaft portion 32 and the inner wall of the extension portion 132, and will not affect the stable transmission of driving force from the shaft portion 32 to the driving force transmission component.

[0029] like Figure 1 and Figure 3 As shown, when the processing box 100 is assembled, at least a portion of the extension portion 122 enters the first through hole 511, that is, the outer diameter of the extension portion 122 is the same as the inner diameter d1 of the first through hole 511, which is used to support at least a portion of the extension portion 122; observing the processing box 100 in the front-to-back direction, the first driving force receiving portion 31 protrudes from the first end cover 51, which is used to receive the driving force output by the driving force output member.

[0030] As described above, the present application can achieve the following beneficial effects:

[0031] 1. Compared with the prior art, the inner diameter d1 of the first through hole 511 is larger than the inner diameter d2 of the second through hole 512. In the present application, while the inner diameter d2 of the second through hole 512 remains unchanged compared with the prior art, the inner diameter d1 of the first through hole 511 and the inner diameter d2 of the second through hole 512 are of equivalent size, which can further enhance the strength of the first end cover 51.

[0032] 2. The first driving force receiving member 30 includes the first driving force receiving portion 31 and the shaft portion 32 formed in one piece, which not only further enhances the strength of the first driving force receiving portion 31 but also facilitates the production of the first driving force receiving member 30 .

[0033] 3. The first radial outermost surface 311, the second radial outermost surface 312 and the third radial outermost surface 313 are all set to curved surfaces, which can increase the contact area between the first driving force receiving member 30 and the driving force output member, thereby increasing the friction between the two, so that the driving force output member can more stably drive the first driving force receiving member 30 to rotate, and maintain the combination stability of the driving force output member and the first driving force receiving member 30.

[0034] 4. Along the rotation direction R of the first driving force receiving member 30, the first radial outermost surface 311, the second radial outermost surface 312, the third radial outermost surface 313 and the outer circumferential surface 321 of the shaft portion 32 are on the same circumferential plane. This structure not only facilitates the production of the first driving force receiving member 30, but also facilitates the rapid assembly of the processing box 100.

[0035] 5. The first sub-receiving portion 31 a , the second sub-receiving portion 31 b and the third sub-receiving portion 31 c are formed integrally, which can further enhance the strength of the first driving force receiving portion 31 , thereby receiving the driving force more stably.

Claims

1. A process cartridge, detachably mounted in an imaging device; characterized in that: The processing box includes: The developing unit comprises a developing housing for accommodating toner, and a developing roller rotatably disposed in the developing housing, wherein the developing roller is used to carry the toner, and a rotation axis of the developing roller extends in a longitudinal direction; The photosensitive unit comprises a photosensitive housing and a photosensitive drum rotatably arranged in the photosensitive housing, and a developing roller supplies toner to the photosensitive drum; a first driving force receiving member for receiving a driving force outputted by the imaging device to directly or indirectly drive the developing roller to rotate, the first driving force receiving member comprising an integrally formed first driving force receiving portion and a shaft portion, the shaft portion being used to support the first driving force receiving portion; a second driving force receiving member for receiving the driving force output by the imaging device to directly drive the photosensitive drum to rotate; a first end cover provided at a longitudinal end of the process cartridge and provided with a first through hole and a second through hole, the first driving force receiving member being exposed through the first through hole and the second driving force receiving member being exposed through the second through hole; The inner diameter of the first through hole is equal to the inner diameter of the second through hole.

2. The process cartridge according to claim 1, wherein The process cartridge further includes a driving gear connected to the shaft portion for transmitting the driving force received by the first driving force receiving member to other components of the developing unit, and the shaft portion is located between the driving gear and the first driving force receiving portion along the longitudinal direction.

3. The process cartridge according to claim 1, wherein The processing box includes a protective cover arranged at one longitudinal end, the protective cover has a protective cover body, a third through hole formed on the protective cover body and an extension portion arranged around the circumference of the first through hole, and the outer diameter of the shaft portion is equivalent to the inner diameter of the extension portion.

4. The process cartridge according to claim 3, wherein: When the process cartridge is assembled, the first through hole supports at least a portion of the extension portion; and when viewing the process cartridge along a front-rear direction intersecting the longitudinal direction, the first driving force receiving portion protrudes from the first end cover.

5. The process cartridge according to any one of claims 1 to 4, wherein: The first driving force receiving portion includes a first sub-receiving portion, a second sub-receiving portion and a third sub-receiving portion. The diameters of the circumscribed circles of the first sub-receiving portion, the second sub-receiving portion and the third sub-receiving portion are equivalent to the outer diameter of the shaft portion.

6. The process cartridge according to claim 5, wherein: The first sub-receiving portion, the second sub-receiving portion and the third sub-receiving portion are integrally formed.

7. The process cartridge according to claim 5, wherein: The first sub-receiving portion, the second sub-receiving portion and the third sub-receiving portion are formed separately.

8. The process cartridge according to claim 5, wherein The radially outermost surface of the first sub-receiving portion, the radially outermost surface of the second sub-receiving portion, and the radially outermost surface of the third sub-receiving portion are all configured as curved surfaces.

9. The process cartridge according to claim 5, wherein: The radially outermost surface of the first sub-receiving portion, the radially outermost surface of the second sub-receiving portion, and the radially outermost surface of the third sub-receiving portion are all connected to the outer circumferential surface of the shaft portion.

10. The process cartridge according to claim 5, wherein Along the rotation direction of the first driving force receiving member, the radially outermost surfaces of the first sub-receiving portion, the radially outermost surfaces of the second sub-receiving portion and the radially outermost surfaces of the third sub-receiving portion are all on the same circumferential surface as the outer circumferential surface of the shaft portion.

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