Developing box and image forming device

Abstract

The utility model relates to the technical field of image forming, in particular to a developing box and an image forming device.According to the developing box, a box body is rotatably connected with a drum frame, an electric receiving part is fixedly installed on the box body, the box body is further provided with a stress part, a door cover is provided with a force application part, and when the door cover is closed, the force application part can push the stress part, so that the stress part can be pushed by the force application part; when the door cover is opened, the force applying piece cancels the supporting force of the force applying piece on the force bearing piece, and the box body can rotate and reset relative to the drum frame, so that the electric receiving piece is separated from the electric transmission piece, and sliding friction of the electric receiving piece relative to the electric transmission piece is not caused when the developing box is mounted and dismounted; therefore, the problem that the electric receiving piece / electric transmission piece is damaged can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of image forming, in particular to a developing box and an image forming device. Background Art

[0002] A developing cartridge is a detachable part widely used in image forming devices, which provides the image forming device with a developing medium for imaging and fixing. After the printing consumables of the image forming device are consumed, a new developing cartridge needs to be replaced.

[0003] In the related art, an image forming apparatus includes an apparatus body and a developer cartridge. The developer cartridge has a power receiver, and the apparatus body is provided with a power transmission member. When the developer cartridge is inserted into the apparatus body, the power receiver and the power transmission member come into contact, and the apparatus body transmits electrical energy to the developer cartridge via the power receiver. However, because the power transmission member is fixedly mounted to the apparatus body, sliding friction occurs between the power receiver and the power transmission member when the developer cartridge is installed or removed, which can affect power transmission to the power receiver and even damage the power receiver. Utility Model Content

[0004] To achieve the above-mentioned object, the present invention provides a developing cartridge that can be detachably mounted on an image forming device, the image forming device comprising a drum frame, a door cover, a force-applying member, and an electric transmission member, the force-applying member being disposed on the door cover, the developing cartridge comprising a cartridge body, a force-receiving member, and an electric receiving member, the force-receiving member and the electric receiving member being fixedly mounted on the cartridge body, and the cartridge body being rotatably connected to the drum frame;

[0005] When the door cover is closed, the force applying member pushes the force receiving member to make the box body rotate in the positive direction relative to the drum frame, and the power receiving member rotates with the box body to a position in contact with the power transmitting member;

[0006] When the door cover is opened, the force applying member cancels its supporting force on the force receiving member, the box body rotates in the opposite direction relative to the drum frame under the action of its own gravity, and the power receiving member rotates with the box body and separates from the power transmitting member.

[0007] In some possible embodiments, the force-bearing member and the power receiving member are located on the same side of the box body.

[0008] In some possible embodiments, the force-bearing member is integrally formed on one side of the box body, and the lower end of the force-bearing member is an arc-shaped force-bearing surface.

[0009] In some possible embodiments, the force-bearing member is an arc-shaped elastic piece integrally formed on one side of the box body.

[0010] In some possible embodiments, the force-bearing member includes a rotating shaft provided on one side of the box body and a roller sleeved on the rotating shaft, and the roller can rotate around the rotating shaft.

[0011] In some possible embodiments, the force-bearing member is a handle provided at one end of the box body.

[0012] In some possible embodiments, a chip holder is fixedly mounted on one side of the box body, and the electrical receiver is disposed at an upper end of the chip holder.

[0013] In some possible embodiments, two opposite sides of the box body are provided with positioning protrusions, the two positioning protrusions are coaxially arranged, and the drum frame is provided with a rotating recess for mounting the positioning protrusions.

[0014] The utility model also provides an image forming device, which includes a drum frame, a door cover, a force applying member, an electric transmission member and a developing box as described in the above embodiment, wherein the developing box is detachably rotatably connected to the drum frame, and the force applying member is arranged on the door cover.

[0015] In some possible embodiments, the force-applying member is provided on a side of the door cover close to the developing box, and a side of the force-applying member in contact with the force-receiving member is in the form of an arc surface.

[0016] Compared with the prior art, the beneficial effect of the present invention is that: the developing box of the present invention rotatably connects the box body and the drum frame, the electric receiving component is fixedly installed on the box body, a force-bearing component is also provided on the box body, and a force-applying component is provided on the door cover. When the door cover is closed, the force-applying component can push the force-bearing component to rotate the box body relative to the drum frame until the electric receiving component contacts the electric transmission component. When the door cover is opened, the force-applying component cancels its supporting force on the force-bearing component, and the box body can be rotated and reset relative to the drum frame to separate the electric receiving component from the electric transmission component. Therefore, when installing and disassembling the developing box, the electric receiving component will not cause sliding friction relative to the electric transmission component, thereby avoiding the problem of damage to the electric receiving component / electric transmission component. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a side view of the structure of the developing box installed on the drum frame according to an embodiment of the utility model;

[0019] Figure 2 Schematic diagram of the three-dimensional structure of the developing box part of the embodiment of the utility model Figure 1 ;

[0020] Figure 3 Schematic diagram of the three-dimensional structure of the developing box part of the embodiment of the utility model Figure 2 ;

[0021] Figure 4 Schematic diagram of the three-dimensional structure of the developing box part of the embodiment of the utility model Figure 3 .

[0022] Reference numerals: drum frame 11 , door cover 12 , force applying member 13 , rotating recess 14 , box body 21 , force receiving member 22 , force receiving surface 221 , rotating shaft 222 , roller 223 , electric receiving member 23 , positioning protrusion 24 , handle 25 , chip holder 26 . DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. In the following, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, unless otherwise specified, "multiple" means two or more.

[0024] Reference Figure 1As shown, the utility model provides a developing box, which is detachably mounted on an image forming device. The image forming device in this embodiment can adopt a conventional and mature structure in the industry. The image forming device generally includes a drum frame 11, a door cover 12, a force-applying member 13 and an electric transmission member (not shown in the figure), wherein the force-applying member 13 is arranged on the door cover 12 and can move with the door cover 12. The developing box of the present application includes a box body 21, a force-bearing member 22 and an electric receiving member 23, wherein the force-bearing member 22 and the electric receiving member 23 are both fixedly mounted on the box body 21, and the box body 21 can rotate relative to the drum frame 11; when the door cover 12 is closed, the force-applying member 13 pushes the force-bearing member 22, so that the box body 21 receives the pushing force and rotates around it and the drum frame 11. The connection of the frame 11 rotates in the forward direction (upward), and the electric receiving element 23 also moves upward with the box body 21 to contact and conduct with the electric transmission element, thereby ensuring that the image forming device stably transmits electric energy between the electric receiving element 23 and the electric transmission element when in use; when the door cover 12 is opened, the force-applying element 13 moves with the door cover 12 to cancel its supporting force on the force-receiving element 22, and the box body 21 is able to rotate in the opposite direction (downward) around the connection with the drum frame 11 due to its own gravity, and the electric receiving element 23 also moves downward with the box body 21 to separate from the electric transmission element. At this time, disassembling the developing box can avoid the friction between the electric receiving element 23 and the electric transmission element, which may cause wear or even damage to the electric receiving element 23 / the electric transmission element.

[0025] In some possible embodiments, the force-bearing member 22 is arranged on one side of the box body 21, preferably on the side cover of the driving end of the box body 21, and the electric receiving member 23 and the force-bearing member 22 are located on the same side of the box body 21; further, in order to ensure the force balance of the developing box, the force-bearing member 22 can also be set as two and arranged on opposite sides of the box body 21.

[0026] In some possible embodiments, reference Figure 2 As shown, the force-bearing member 22 is integrally formed on one side of the box body 21, and the lower end of the force-bearing member 22 is an arc-shaped force-bearing surface 221. Specifically, the two ends of the force-bearing member 22 are respectively connected to the box body 21. The part of the force-bearing member 22 that contacts the force-applying member 13 is in an inwardly concave arc shape, and the other part that does not contact the force-applying member 13 is in a straight plate shape and connected to the box body 21, so as to enhance the structural strength of the force-bearing member 22.

[0027] In some possible embodiments, reference Figure 3 As shown, the force-bearing member 22 is an arc-shaped elastic piece integrally formed on one side of the box body 21. Specifically, one end of the force-bearing member 22 is integrally connected to the box body 21, and the other end extends in an arc shape as a free end. The purpose of this design is that when the door cover 12 is pressed against the elastic force-bearing member 22, the electric receiving member 23 and the electric transmission member are in elastic contact, and the shaking generated when the developing box is working can be absorbed by the elastic force-bearing member 22, thereby ensuring stable contact between the electric receiving member 23 and the electric transmission member.

[0028] In some possible embodiments, reference Figure 4 As shown, the force-bearing member 22 includes a rotating shaft 222 arranged on one side of the box body 21 and a roller 223 sleeved on the rotating shaft 222. The roller 223 can rotate around the rotating shaft 222, that is, after the door cover 12 is closed, the force-applying member 13 always presses the roller 223, and the developing box will shake during operation. This design can ensure that the developing box can shake to a certain extent relative to the door cover 12, thereby avoiding rigid contact between the electric receiving member 23 and the electric transmission member.

[0029] In some possible embodiments, reference Figure 1 and Figure 2 As shown, a handle 25 is provided on the side of the box body 21 away from the developing roller, and the handle 25 can facilitate people to disassemble and assemble the developing box. The force-bearing member 22 is the handle 25, and the force-bearing surface 221 is the lower end surface of the handle 25. When the door cover 12 is closed, the force-applying member 13 pushes the lower end surface of the handle 25, thereby driving the box body 21 to rotate around the connection between it and the drum frame 11, so that the electric receiving member 23 rotates forward (upward) and contacts the electric transmission member; in this embodiment, there is no need to specially design the force-bearing member 22, and it is only necessary to set the force-applying member 13 at the position corresponding to the handle 25 on the door cover 12.

[0030] In some possible embodiments, a chip holder 26 is provided on the box body 21 on the same side as the force-bearing member 22, and the electrical receiving member 23 is installed on the upper end of the chip holder 26 with its electrical contact surface facing upward so that it can move upward and be in contact with the electrical transmission member for conduction.

[0031] In some possible embodiments, reference Figure 1 As shown, positioning protrusions 24 are provided on opposite sides of the box body 21. The positioning protrusions 24 are cylindrical. The two positioning protrusions 24 are coaxially arranged. Two rotating recesses 14 for installing the positioning protrusions 24 are provided on the drum frame 11. When the developing box is installed, the two positioning protrusions 24 are correspondingly accommodated in the two rotating recesses 14. When the force-applying member 13 pushes the force-receiving member 22, the box body 21 can rotate relative to the drum frame 11 around the axis of the two positioning protrusions 24.

[0032] The utility model also provides an image forming device, referring to Figure 1As shown, the image forming device includes a drum frame 11, a door cover 12, a force-applying member 13 and an electric transmission member. The developing box is detachably connected to the drum frame 11. The force-applying member 13 is provided on the door cover 12 and can move with the door cover 12. The electric transmission member is vertically downwardly provided above the developing box. When the door cover 12 is closed, the force-applying member 13 can push the force-receiving member 22 on the box body 21, and the box body 21 can rotate forward (upward) around the connection between it and the drum frame 11, so that the electric receiving member 23 provided on the box body 21 is in contact with the electric transmission member; when the door cover 12 is opened, The force-applying member 13 cancels its supporting force on the force-receiving member 22, and the box body 21 is able to rotate in the opposite direction (downward) around the connection between it and the drum frame 11, and the electric receiving member 23 moves downward with the box body 21 and separates from the electric transmission member; further, the force-applying member 13 is arranged on the side of the door cover 12 close to the developing box, and the side of the force-applying member 13 in contact with the force-receiving member 22 is an arc surface, so that the force-applying member 13 can gradually contact and push the force-receiving member 22 when the door cover 12 is closed, and the force-applying member 13 can also gradually cancel its supporting force on the force-receiving member 22 when the door cover 12 is opened.

[0033] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present invention shall be covered by the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope of protection of the claims.

Claims

1. A developing cartridge detachably mounted on an image forming device, wherein the image forming device comprises a drum frame (11), a door cover (12), a force applying member (13) and an electric transmission member, wherein the force applying member (13) is arranged on the door cover (12), and wherein: The developing box comprises a box body (21), a force-bearing member (22) and an electric receiving member (23), wherein the force-bearing member (22) and the electric receiving member (23) are both fixedly mounted on the box body (21), and the box body (21) is rotatably connected to the drum frame (11); When the door cover (12) is closed, the force applying member (13) pushes the force receiving member (22) to make the box body (21) rotate in the positive direction relative to the drum frame (11), and the electric receiving member (23) rotates with the box body (21) to a position in contact with the electric transmitting member; When the door cover (12) is opened, the force-applying member (13) cancels its supporting force on the force-receiving member (22), and the box body (21) rotates in the opposite direction relative to the drum frame (11) due to its own gravity, and the electric receiving member (23) rotates with the box body (21) and separates from the electric transmission member.

2. A developing cartridge according to claim 1, characterized in that: The force-bearing member (22) and the electric receiving member (23) are located on the same side of the box body (21).

3. A developing cartridge according to claim 1, characterized in that: The force-bearing member (22) is integrally formed on one side of the box body (21), and the lower end of the force-bearing member (22) is an arc-shaped force-bearing surface (221).

4. A developing cartridge according to claim 1, characterized in that: The force-bearing member (22) is an arc-shaped elastic piece integrally formed on one side of the box body (21).

5. A developing cartridge according to claim 1, characterized in that: The force-bearing member (22) comprises a rotating shaft (222) arranged on one side of the box body (21) and a roller (223) sleeved on the rotating shaft (222), and the roller (223) can rotate around the rotating shaft (222).

6. A developing cartridge according to claim 1, characterized in that: The force-bearing member (22) is a handle (25) provided at one end of the box body (21).

7. A developing cartridge according to claim 1, characterized in that: A chip bracket (26) is also fixedly mounted on one side of the box body (21), and the electrical receiving component (23) is arranged on the upper end of the chip bracket (26).

8. A developing cartridge according to claim 1, characterized in that: The box body (21) has positioning protrusions (24) on opposite sides, and the two positioning protrusions (24) are coaxially arranged. The drum frame (11) is provided with a rotating recess (14) for installing the positioning protrusions (24).

9. An image forming apparatus, characterized in that: It comprises a drum frame (11), a door cover (12), a force-applying member (13), an electric transmission member and a developing box as described in any one of claims 1 to 8, wherein the developing box is detachably rotatably connected to the drum frame (11), and the force-applying member (13) is arranged on the door cover (12).

10. The image forming apparatus according to claim 9, wherein: The force-applying member (13) is arranged on a side of the door cover (12) close to the developing box, and the side of the force-applying member (13) that contacts the force-receiving member (22) is an arc surface.

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