Drum stand and processing box

Abstract

The utility model relates to the technical field of image formation, in particular to a drum stand and a processing cartridge, the drum stand comprises a shell and a drum cartridge, the shell is rotatably mounted on printing equipment, the printing equipment is provided with a force application part and an electric transmission part, the shell is provided with a supporting part, a developing cartridge is mounted on the shell, and the developing cartridge is mounted on the shell. The electric receiving part and the chip support are arranged on the developing box or the shell, during installation, a force applying part on the printing equipment abuts against the supporting part so that the shell can rotate relative to the printing equipment, and the electric receiving part moves in the direction close to the electric transmission part along with the shell and abuts against the electric transmission part. Therefore, a contact gap between the electric receiving piece and the electric transmission piece caused by an installation error or difference between machinery equipment is eliminated, and good and stable contact between the electric receiving piece and the electric transmission piece is ensured when the printing equipment works.

Description

Technical Field

[0001] The utility model relates to the technical field of image forming, in particular to a drum rack and a processing cartridge. Background Art

[0002] A printing device includes a device main body and a processing cartridge disposed in the device main body. The device main body has an electrical transmission member, and an electrical receiving member is disposed on the processing cartridge. The electrical transmission member and the electrical receiving member are usually electrically connected in a contacting form. However, due to installation errors or slight differences between machine devices, there will be a problem that the electrical receiving member cannot be in good contact with the electrical transmission member. Summary of the Utility Model

[0003] To achieve the above object, the utility model provides a drum rack which is rotatably mounted on a printing device. The printing device further has an electrical transmission member and a force applying member. The drum rack includes a housing and a drum cartridge mounted on the housing. A developing cartridge is detachably mounted on the housing. A chip bracket is disposed on the housing or the developing cartridge, and an electrical receiving member is mounted on the chip bracket. A supporting member is further disposed on the drum rack, and the force applying member abuts against the supporting member so that the electrical receiving member moves in a direction close to the electrical transmission member along with the housing and abuts against the electrical transmission member.

[0004] In some possible embodiments, rotating shafts are disposed at opposite ends of the drum cartridge, and rotating grooves mating with the rotating shafts are disposed on the printing device. The two rotating shafts are collinear, and the drum cartridge rotates relative to the printing device around the axes of the two rotating shafts so that the electrical receiving member abuts against the electrical transmission member or separates from the electrical transmission member.

[0005] In some possible embodiments, the supporting member is disposed on a side of the chip bracket away from the rotating shaft and close to a door cover of the printing device, and the force applying member is disposed on the door cover. When the door cover is closed, the force applying member pushes the supporting member so that the housing rotates forward relative to the printing device, and the electrical receiving member rotates along with the housing to a position where it contacts the electrical transmission member. When the door cover is opened, the force applying member cancels its supporting force on the supporting member, and the housing rotates backward relative to the printing device under the action of its own gravity, and the electrical receiving member rotates along with the housing and separates from the electrical transmission member.

[0006] In some possible embodiments, taking the axial direction of the two rotating shafts as a first direction, the supporting member protrudes from one end of the housing in a second direction different from the first direction.

[0007] In some possible embodiments, a first arc contact surface is provided at the front end of the supporting member, and a second arc contact surface is provided on the force applying member.

[0008] In some possible embodiments, the support member is integrally formed with the housing.

[0009] In some possible embodiments, taking the axial direction of the two rotation shafts as the first direction, the support members are respectively arranged on opposite sides of the chip support, and the acting direction of the acting member relative to the support member is perpendicular to the first direction.

[0010] The present utility model further provides a processing cartridge, including a developing cartridge and a drum holder as described in the above embodiments, and the developing cartridge is detachably mounted on the drum holder.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: The drum holder of the present utility model includes a housing and a drum cartridge. The housing is rotatably mounted on a printing device. There are an acting member and an electrical transmission member on the printing device. A support member is provided on the housing. The developing cartridge is mounted on the housing. An electrical receiving member and a chip support are provided on the developing cartridge or the housing. During installation, the acting member on the printing device abuts against the support member to make the housing rotate relative to the printing device. The electrical receiving member moves in a direction close to the electrical transmission member along with the housing and abuts against the electrical transmission member, thereby eliminating the contact gap between the electrical receiving member and the electrical transmission member caused by installation errors or differences between machine devices, so as to ensure good and stable contact between the electrical receiving member and the electrical transmission member when the printing device works. Description of the Drawings

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0013] Figure 1 is a three-dimensional structure diagram of the processing cartridge according to the embodiment of the present utility model;

[0014] Figure 2 is the front view of the three-dimensional structure of the processing cartridge according to the embodiment of the present utility model;

[0015] Figure 3 is Figure 2 the enlarged schematic diagram at A in

[0016] Reference numerals: door cover 10, acting member 11, second arc contact surface 111, housing 21, drum cartridge 22, support member 23, first arc contact surface 231, rotation shaft 24, developing cartridge 30, chip support 31, electrical receiving member 32. Detailed Embodiments

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. Hereinafter, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present disclosure, unless otherwise specified, the meaning of "a plurality" is two or more.

[0018] Referring to Figures 1 to 3 A drum rack as shown, which is rotatably installed on a printing device. The printing device has an electrical transmission member (not shown in the figure) and a force-applying member 11. The drum rack of the present utility model includes a housing 21 and a drum cartridge 22 installed on the housing 21. The developing cartridge 30 is detachably installed on the drum rack. A chip holder 31 is provided on the housing 21 or the developing cartridge 30. The electrical receiving member 32 is installed at the upper end between the chips. When the printing device is working, it is necessary to ensure that the electrical receiving member 32 is in stable and good contact with the electrical transmission member. Based on this, the present utility model provides a support member 23 on the drum rack. After the drum rack is installed on the printing device, the force-applying member 11 abuts against the support member 23 and forces the drum rack to rotate slightly relative to the printing device. The electrical receiving member 32 moves in the direction close to the electrical transmission member along with the drum rack, thereby eliminating the problem that there may be a small gap between the electrical receiving member 32 and the electrical transmission member due to assembly errors or small differences between machine devices, and ensuring that the electrical receiving member 32 can be in stable and good contact with the electrical transmission member when the printing device is working.

[0019] In some possible embodiments, rotating shafts 24 are provided at both opposite ends of the drum cartridge 22. The axes of the two rotating shafts 24 coincide to ensure that the drum cartridge 22 can rotate relative to the printing device, thereby driving the housing 21 to rotate. A rotating groove (not shown in the figure) matching the rotating shaft 24 is also provided on the printing device. Assuming that the axial direction of the rotating shaft 24 is the first direction, the rotating shaft 24 can be installed in the rotating groove along the second direction. The second direction is preferably perpendicular to the first direction. When the force-applying member 11 abuts against the support member 23, it can force the drum cartridge 22 / housing 21 to rotate relative to the printing device around the rotating shaft 24. The electrical receiving member 32 moves in the direction close to the electrical transmission member along with the housing 21 to eliminate the small gap between the electrical receiving member 32 and the electrical transmission member, and ensure stable and good contact between the electrical receiving member 32 and the electrical transmission member.

[0020] In some possible embodiments, referring to Figure 2 With Figure 3As shown, the support member 23 is disposed on the side of the chip holder 31 away from the rotation axis 24 and close to the door cover 10 of the printing device. The force-applying member 11 is disposed on the door cover 10. After the electric receiving member 32 is installed in the printing device along with the drum holder, closing the door cover 10 can cause the force-applying member 11 to abut against the support member 23, thereby driving the drum holder to rotate relative to the printing device. The electric receiving member 32 rotates in the direction close to the electric transmission member along with the drum holder and abuts against the electric transmission member, thereby eliminating the tiny gap between the electric receiving member 32 and the electric transmission member. When the door cover 10 is opened, the force-applying member 11 moves away from the support member 23 along with the door cover 10 and cancels the supporting force on the support member 23. The drum holder can rotate relative to the printing device in the reverse direction under its own gravity. The electric receiving member 32 rotates along with the housing 21 and separates from the electric transmission member, thereby avoiding sliding friction between the electric receiving member 32 and the electric transmission member when disassembling and assembling the drum holder, and damaging the electric receiving member 32 and the electric transmission member.

[0021] In some possible embodiments, the support member 23 protrudes from one end of the housing 21 in the second direction and extends close to the force-applying member 11. The acting direction of the force-applying member 11 on the support member 23 intersects with the contact surface between the electric receiving member 32 and the electric transmission member, so as to ensure that the electric receiving member 32 can contact the electric transmission member after the force-applying member forces the drum holder to rotate.

[0022] In some possible embodiments, the front end of the support member 23 has a first arc contact surface 231, and the force-applying member 11 has a second arc contact surface 111, that is, the contact between the force-applying member 11 and the support member 23 is a line contact, so that the force-applying member 11 can apply a supporting force to the support member 23 and can ensure as small a contact area as possible, thereby reducing the frictional force generated during the force application process.

[0023] In some possible embodiments, the support member 23 is integrally formed with the housing 21, and it can be directly obtained by injection molding and mold opening, with relatively low manufacturing cost.

[0024] In some possible embodiments, the support members 23 are respectively disposed on opposite sides of the chip holder 31, and the acting direction of the force-applying member 11 relative to the support member 23 is perpendicular to the first direction. In this embodiment, the force-applying member 11 is not limited to being disposed on the door cover 10, and the force-applying member 11 can also be disposed at other positions of the printing device. After the drum holder is installed in place, the force-applying member 11 can apply a certain pressing force to the support member 23 to force the electric receiving member 32 to move in the direction close to the electric transmission member along with the drum holder and abut against the electric transmission member.

[0025] The present invention also provides a processing cartridge, which includes a developing cartridge 30 and a drum holder as described in the above embodiments. The developing cartridge 30 is installed on the drum holder. The chip holder 31 is disposed at one end of the developing cartridge 30 or the drum holder. The support member 23 is disposed on the drum holder and on the same side as the chip holder 31.

[0026] As described above, it is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions within the technical scope disclosed by the present utility model should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claimed rights.

Claims

1. A drum rack is rotatably mounted on a printing device, and the printing device further has an electrical transmission member and a force - applying member (11), characterized in that, The drum holder includes a housing (21) and a drum cartridge (22) mounted on the housing (21). The developing cartridge (30) is detachably mounted on the housing (21). A chip bracket (31) is provided on the housing (21) or the developing cartridge (30). An electrical receiving member (32) is mounted on the chip bracket (31). A supporting member (23) is further provided on the drum holder. The force applying member (11) abuts against the supporting member (23) so that the electrical receiving member (32) moves in the direction close to the electrical transmission member along with the housing (21) and abuts against the electrical transmission member.

2. A drum stand according to claim 1, characterized in that, Rotating shafts (24) are provided at both opposite ends of the drum cartridge (22). Rotating grooves matching with the rotating shafts (24) are provided on the printing device. The two rotating shafts (24) are collinear and the drum cartridge (22) rotates relative to the printing device about the axes of the two rotating shafts (24) so that the electrical receiving member (32) abuts against the electrical transmission member or separates from the electrical transmission member.

3. A drum stand according to claim 2, characterized in that, The supporting member (23) is provided on a side of the chip bracket (31) away from the rotating shaft (24) and close to the door cover (10) of the printing device. The force applying member (11) is provided on the door cover (10). When the door cover (10) is closed, the force applying member (11) pushes the supporting member (23) so that the housing (21) rotates forward relative to the printing device, and the electrical receiving member (32) rotates along with the housing (21) to a position in contact with the electrical transmission member. When the door cover (10) is opened, the force applying member (11) cancels the supporting force on the supporting member (23), and the housing (21) rotates backward relative to the printing device under the action of its own gravity, and the electrical receiving member (32) rotates along with the housing (21) and separates from the electrical transmission member.

4. A drum rack according to claim 2, characterized in that, Taking the axial direction of the two rotating shafts (24) as the first direction, the supporting member (23) protrudes from one end of the housing (21) toward a second direction, and the second direction is not the same as the first direction.

5. A drum stand according to claim 4, characterized in that, The front end of the supporting member (23) has a first arc contact surface (231), and the force applying member (11) has a second arc contact surface (111).

6. A drum stand according to claim 1, characterized in that, The supporting member (23) is integrally formed with the housing (21).

7. A drum stand according to claim 4 or 5, characterized in that, The supporting members (23) are provided on opposite sides of the chip bracket (31), and the acting direction of the force applying member (11) relative to the supporting member (23) is perpendicular to the first direction.

8. A processing cartridge, characterized in that, It includes a developing cartridge (30) and the drum holder according to any one of claims 1 to 7. The developing cartridge (30) is detachably mounted on the drum holder.

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