Integrated photosensitive drum

Abstract

The utility model discloses an integrated photosensitive drum, which relates to the technical field of photosensitive drums and comprises a photosensitive drum shell, radiating holes are symmetrically arranged on the outer side wall of the photosensitive drum shell, a photosensitive drum aluminum tube is movably connected inside the photosensitive drum shell, and one end of the photosensitive drum aluminum tube is fixedly connected with a connecting seat. A photosensitive drum gear is movably connected to the end, away from the photosensitive drum aluminum tube, of the connecting base, a connecting block is fixedly connected to the end, close to the connecting base, of the photosensitive drum gear, connecting assemblies are symmetrically installed in the connecting block, and fixing assemblies are symmetrically installed in the photosensitive drum shell. By adopting the structure, a user or a maintainer can only replace the gear part without replacing the whole photosensitive drum assembly or a larger printer part together, so that the maintenance cost is greatly reduced, the user or the maintainer can complete the installation and disassembly of the gear without complicated steps or tools, and the operation is convenient. Therefore, the maintenance process is smoother, and the waiting time is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of photosensitive drums, in particular to an integrated photosensitive drum. Background Art

[0002] The photoconductive drum, also known as the toner drum, is a crucial component in laser printers. Its basic structure consists of an aluminum substrate coated with a photosensitive material. The drum's primary function is to supply toner to the laser printer and, during the printing process, transfer the toner to paper through the photoelectric effect, thereby creating the printed document. The drum's operating principle is based on the photoelectric effect and the principle of charge attraction. During the printing process, the drum's surface is pre-charged. When the laser beam strikes the drum's surface, a resistance reaction occurs in the illuminated areas, dissipating the charge and forming a latent image. Subsequently, the charged toner particles are attracted to the charged areas on the drum's surface, forming the actual image. As the drum rotates and passes over the printing paper, the toner is attracted to the paper, which carries a stronger charge of the same polarity as the drum's surface, forming the image. Finally, through a heating and cooling process, the toner solidifies on the paper, completing the print.

[0003] Announcement No. "CN221507326U" An integrated photosensitive drum includes a photosensitive drum shell, and a snap-in slot is provided inside one end of the photosensitive drum shell. This integrated photosensitive drum presses the sliding block on one side of the end cover to move the sliding block to the other end of the slide slot. At this time, the plug-in block is driven by the sliding block to move to the inside of the cavity and compress the limit spring. The end cover is then inserted into the inside of one end of the photosensitive drum shell. When the cavity is connected to the snap-in slot, the elastic force of the limit spring pushes the plug-in block so that one end is inserted into the inside of the snap-in slot, thus completing the installation of the end cover. The setting of this structure reduces the risk of loosening or connection failure during the installation process. The installation can be completed by simply inserting the end cover into one end of the photosensitive drum shell. The end cover made of metal alloy can provide high strength and durability, and has good heat dissipation performance. The detachable end cover can facilitate subsequent maintenance.

[0004] Although the above-mentioned utility model reduces the risk of loosening or connection failure during the installation process, the installation can be completed by simply inserting the end cover into one end of the photosensitive drum housing, and the end cover composed of a metal alloy can provide high strength and durability, and has good heat dissipation performance, and the end cover is removable to facilitate subsequent maintenance, but currently on the market, gears are usually used as part of the transmission mechanism. With the long-term use of the printer, the photosensitive drum gear will experience frequent rotation and friction, resulting in wear on the gear surface. When the wear reaches a certain level, the meshing accuracy of the gear will decrease, affecting the normal rotation of the photosensitive drum, thereby affecting the print quality. However, the photosensitive drum gears currently on the market cannot be replaced individually. Once a problem occurs, the photosensitive drum unit usually needs to be replaced as a whole. This means that users need to bear a higher replacement cost, including the cost of the entire unit, including the photosensitive drum, powder cartridge, and powder bin. Utility Model Content

[0005] In response to the problems mentioned in the background technology, the purpose of the present utility model is to provide an integrated photosensitive drum to solve the problem that the photosensitive drum gears currently on the market cannot be replaced individually. Once a problem occurs, the photosensitive drum unit usually needs to be replaced as a whole, which means that users need to bear a higher replacement cost, including the cost of the entire unit such as the photosensitive drum, powder box and powder bin.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] An integrated photosensitive drum comprises a photosensitive drum housing, wherein the outer wall of the photosensitive drum housing is symmetrically provided with heat dissipation holes, an aluminum tube of the photosensitive drum is movably connected to the interior of the photosensitive drum housing, one end of the aluminum tube of the photosensitive drum is fixedly connected to a connecting seat, an end of the connecting seat away from the photosensitive drum aluminum tube is movably connected to a photosensitive drum gear, an end of the photosensitive drum gear close to the connecting seat is fixedly connected to a connecting block, connecting components are symmetrically installed inside the connecting block, and fixed components are symmetrically installed inside the photosensitive drum housing;

[0008] The connecting assembly includes a first cavity, a first return spring, a movable plate and a locking block. The first cavity is symmetrically opened inside the connecting block. The first return spring is symmetrically fixedly connected to one end of the first cavity. The other end of the first return spring is fixedly connected to the movable plate. The movable plate is slidingly connected to the inside of the first cavity. The end of the movable plate away from the first return spring is fixedly connected to the locking block. The end of the locking block away from the movable plate extends out of the upper end and the bottom end of the connecting block respectively. The end of the locking block close to the connecting seat is set as an inclined surface. The end of the connecting seat away from the photosensitive drum aluminum tube is provided with a connecting groove. The connecting groove and the connecting block are plug-in. A locking groove is provided at one end inside the connecting groove The locking groove passes through the connecting seat, the locking groove and the locking block are snap-connected, and an unlocking block is slidably connected inside the locking groove. The unlocking block extends out of one end of the connecting seat away from the locking block. The two ends of the unlocking block are symmetrically fixedly connected to the limiting blocks, and limiting grooves are symmetrically opened inside the locking groove. The limiting blocks and the limiting grooves are slidably connected, which allows users or maintenance personnel to replace only the gear part without replacing the entire photosensitive drum assembly or larger printer components. This greatly reduces maintenance costs, and users or maintenance personnel can complete the installation and disassembly of the gears without complicated steps or tools, making the maintenance process smoother and reducing waiting time.

[0009] As an optimal technical solution, a positioning block is symmetrically fixedly connected to one end of the photosensitive drum gear close to the connecting seat, and a positioning groove is symmetrically opened on the end of the connecting seat away from the photosensitive drum aluminum tube. The positioning groove and the positioning block are plugged into each other. The design of the positioning block and the positioning groove enables the photosensitive drum gear to be quickly and accurately aligned with the connecting seat during installation, avoiding deviation or misalignment problems caused by improper installation.

[0010] As an optimal technical solution, the fixing component includes a second cavity, a second return spring, a moving block, a slider, a push block and a fixed column. A second cavity is symmetrically opened inside the photosensitive drum shell, one end of the second cavity is fixedly connected to the second return spring, and the other end of the second return spring is fixedly connected to the moving block. The moving block is slidingly connected to the inside of the second cavity, and the end of the moving block away from the second return spring is symmetrically fixedly connected to the fixed column. The end of the fixed column away from the moving block extends into the photosensitive drum shell, one end of the moving block is fixedly connected to the slider, and the end of the slider away from the moving block extends out of one end of the photosensitive drum shell and is fixedly connected to the push block. The outer wall of the connecting seat is symmetrically opened with a fixing groove, and the fixing groove and the fixed column are plugged in, which can allow users or maintenance personnel to operate quickly, reduce the time for repairing the photosensitive drum aluminum tube and the shell, improve work efficiency, and users or operators can easily complete the installation and disassembly of the photosensitive drum aluminum tube and the shell without complicated operating steps or tools, thereby improving user experience.

[0011] As an optimal technical solution, a cross groove is provided at one end inside the photosensitive drum casing, and a cross block is fixedly connected to one end of the photosensitive drum aluminum tube. The cross block and the cross groove are plugged into each other, and a connecting rod is fixedly connected to the end of the cross block away from the photosensitive drum aluminum tube. The shape of the cross block and the structure of the cross groove make the connection between the photosensitive drum aluminum tube and the photosensitive drum casing tight, reducing swinging and loosening during transmission, thereby providing a more stable and reliable transmission.

[0012] In summary, the present invention has the following beneficial effects:

[0013] First, in the present invention, the photosensitive drum gear is combined with one end of the connecting seat, so that the positioning block is inserted into the positioning groove, and the connecting block is inserted into the connecting groove. During the insertion process, the extrusion force applies pressure to the inclined surface of the locking block, so that the locking block drives the movable plate to press against the first return spring, the first return spring is compressed, and the locking block retracts into the first cavity. When the locking block moves to the locking groove, the first return spring is reset, and the locking block pops out and engages with the locking groove to complete the installation of the photosensitive drum gear. This allows users or maintenance personnel to replace only the gear part without having to replace the entire photosensitive drum assembly or larger printer components. This greatly reduces maintenance costs, and users or maintenance personnel can complete the installation and removal of the gear without complicated steps or tools, making the maintenance process smoother and reducing waiting time.

[0014] Second, in the present invention, the push block is pushed to make the slider slide inside the slide groove, and the slider drives the moving block and the fixed column to move, and the moving block presses against the second return spring, and the second return spring is compressed, and the fixed column retracts into the second cavity at the same time, and then the photosensitive drum aluminum tube and the connecting seat are inserted into the photosensitive drum shell, and the cross block is plugged into the cross slot at the same time, and then the push block is released, the second return spring is reset, and the moving block rebounds to drive the fixed column to pop out, and the fixed column is plugged into the fixed slot to complete the assembly of the photosensitive drum shell and the photosensitive drum aluminum tube, which can allow users or maintenance personnel to operate quickly, reduce the maintenance time of the photosensitive drum aluminum tube and the shell, improve work efficiency, and users or operators can easily complete the installation and disassembly of the photosensitive drum aluminum tube and the shell without complicated operating steps or tools, thereby improving user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the photosensitive drum aluminum tube of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional three-dimensional structure of the connection component of the present invention;

[0018] Figure 4 It is a schematic diagram of the cross-sectional three-dimensional structure of the fixing component of the present utility model.

[0019] Figure markings: 1. photosensitive drum housing; 2. heat dissipation hole; 3. photosensitive drum aluminum tube; 4. connecting seat; 5. photosensitive drum gear; 6. cross block; 7. cross slot; 8. connecting rod; 9. connecting block; 10. connecting slot; 11. connecting assembly; 111. first cavity; 112. first return spring; 113. moving plate; 114. locking block; 12. locking slot; 13. unlocking block; 14. limiting block; 15. limiting slot; 16. positioning block; 17. positioning slot; 18. fixing assembly; 181. second cavity; 182. second return spring; 183. moving block; 184. slider; 185. push block; 186. fixing column; 19. fixing slot; 20. slide slot. DETAILED DESCRIPTION

[0020] Example

[0021] refer to Figures 1 to 4 The integrated photosensitive drum of this embodiment includes a photosensitive drum housing 1. The outer wall of the photosensitive drum housing 1 is symmetrically provided with heat dissipation holes 2. A photosensitive drum aluminum tube 3 is movably connected to the interior of the photosensitive drum housing 1. One end of the photosensitive drum aluminum tube 3 is fixedly connected to a connecting seat 4. The end of the connecting seat 4 away from the photosensitive drum aluminum tube 3 is movably connected to a photosensitive drum gear 5. The end of the photosensitive drum gear 5 close to the connecting seat 4 is fixedly connected to a connecting block 9. A connecting assembly 11 is symmetrically installed inside the connecting block 9. A fixing assembly 18 is symmetrically installed inside the photosensitive drum housing 1.

[0022] The connecting assembly 11 includes a first cavity 111, a first return spring 112, a movable plate 113 and a locking block 114. The first cavity 111 is symmetrically opened inside the connecting block 9. One end of the first cavity 111 is symmetrically fixedly connected to the first return spring 112. The other end of the first return spring 112 is fixedly connected to the movable plate 113. The movable plate 113 is slidably connected to the inside of the first cavity 111. The end of the movable plate 113 away from the first return spring 112 is fixedly connected to the locking block 114. The end of the locking block 114 away from the movable plate 113 extends out of the upper and bottom ends of the connecting block 9 respectively. The end of the locking block 114 close to the connecting seat 4 is set as an inclined surface, and the end of the connecting seat 4 away from the photosensitive drum aluminum tube 3 is provided with a connecting groove 10 The connecting groove 10 and the connecting block 9 are plug-in connected, and a locking groove 12 is provided at one end of the connecting groove 10. The locking groove 12 passes through the connecting seat 4, and the locking groove 12 and the locking block 114 are clamped. The photosensitive drum gear 5 is merged with one end of the connecting seat 4, so that the connecting block 9 is inserted into the connecting groove 10. During the insertion process, the extrusion force exerts pressure on the inclined surface of the locking block 114, so that the locking block 114 drives the movable plate 113 to press against the first return spring 112. The first return spring 112 is compressed, and the locking block 114 retracts into the first cavity 111. When the locking block 114 moves to the locking groove 12, the first return spring 112 is reset, and the locking block 114 pops out and clamps with the locking groove 12, completing the installation of the photosensitive drum gear 5.

[0023] refer to Figure 3 The locking groove 12 is slidably connected with an unlocking block 13, and the end of the unlocking block 13 extends out of the connecting seat 4 away from the locking block 114. The two ends of the unlocking block 13 are symmetrically fixedly connected to the limiting blocks 14. The locking groove 12 is symmetrically provided with limiting grooves 15. The limiting blocks 14 and the limiting grooves 15 are slidably connected, pushing the unlocking block 13 so that the unlocking block 13 slides inside the locking groove 12. At the same time, the limiting block 14 slides inside the limiting groove 15, and the unlocking block 13 pushes the locking block 114 so that the locking block 114 drives the moving plate 113 to press against the first return spring 112. The first return spring 112 is compressed, and the locking block 114 retracts into the first cavity 111. The locking block 114 ends the plugging with the locking groove 12, and then the photosensitive drum gear 5 is pulled outward, so that the connecting block 9 ends the plugging with the connecting groove 10, and the disassembly of the photosensitive drum gear 5 is completed.

[0024] refer to Figure 3 The photosensitive drum gear 5 is symmetrically fixedly connected to the end close to the connecting seat 4 with a positioning block 16, and the connecting seat 4 is symmetrically provided with a positioning groove 17 on the end away from the photosensitive drum aluminum tube 3. The positioning groove 17 and the positioning block 16 are plug-in. When the photosensitive drum gear 5 is combined with one end of the connecting seat 4, the positioning block 16 is inserted into the positioning groove 17.

[0025] refer to Figure 4The fixing assembly 18 includes a second cavity 181, a second return spring 182, a moving block 183, a slider 184, a push block 185 and a fixed column 186. The second cavity 181 is symmetrically opened inside the photosensitive drum housing 1. One end of the second cavity 181 is fixedly connected to the second return spring 182, and the other end of the second return spring 182 is fixedly connected to the moving block 183. The moving block 183 is slidably connected to the inside of the second cavity 181. The end of the moving block 183 away from the second return spring 182 is symmetrically fixedly connected to the fixed column 186. The end of the fixed column 186 away from the moving block 183 extends into the interior of the photosensitive drum housing 1. One end of the moving block 183 is fixedly connected to the slider 184, and the end of the slider 184 away from the moving block 183 extends out of the photosensitive drum housing. 1 and fixedly connected with a push block 185. The outer side wall of the connecting seat 4 is symmetrically provided with a fixing groove 19. The fixing groove 19 and the fixing column 186 are plugged into each other. The push block 185 is pushed to make the slider 184 slide inside the slide groove 20. The slider 184 drives the moving block 183 and the fixing column 186 to move. The moving block 183 presses against the second return spring 182. The second return spring 182 is compressed. At the same time, the fixing column 186 retracts into the second cavity 181. Then, the photosensitive drum aluminum tube 3 and the connecting seat 4 are inserted into the photosensitive drum housing 1. Then, the push block 185 is released. The second return spring 182 is reset. The moving block 183 rebounds and drives the fixing column 186 to pop out. The fixing column 186 is plugged into the fixing groove 19. The assembly of the photosensitive drum housing 1 and the photosensitive drum aluminum tube 3 is completed.

[0026] refer to Figure 1 A cross slot 7 is provided at one end of the inside of the photosensitive drum casing 1, and a cross block 6 is fixedly connected to one end of the photosensitive drum aluminum tube 3. The cross block 6 and the cross slot 7 are plugged into each other. The end of the cross block 6 away from the photosensitive drum aluminum tube 3 is fixedly connected to a connecting rod 8. When the photosensitive drum aluminum tube 3 and the connecting seat 4 are inserted into the interior of the photosensitive drum casing 1, the cross block 6 and the cross slot 7 are plugged into each other.

[0027] Principle and advantages of use: First, push the push block 185 to make the slider 184 slide inside the slide groove 20. The slider 184 drives the moving block 183 and the fixed column 186 to move. The moving block 183 presses the second return spring 182. The second return spring 182 is compressed. At the same time, the fixed column 186 retracts into the second cavity 181. Then, the photosensitive drum aluminum tube 3 and the connecting seat 4 are inserted into the photosensitive drum shell 1. At the same time, the cross block 6 is plugged into the cross slot 7. Then, release the push block 185. The second return spring 182 is reset. The moving block 183 rebounds and drives the fixed column 186 to pop out. The fixed column 186 is plugged into the fixed slot 19. The process is completed. Assemble the photosensitive drum housing 1 and the photosensitive drum aluminum tube 3, then merge the photosensitive drum gear 5 with one end of the connecting seat 4, insert the positioning block 16 into the positioning groove 17, and insert the connecting block 9 into the connecting groove 10. During the insertion process, the extrusion force exerts pressure on the inclined surface of the locking block 114, so that the locking block 114 drives the movable plate 113 to press against the first return spring 112. The first return spring 112 is compressed, and at the same time, the locking block 114 retracts into the first cavity 111. When the locking block 114 moves to the locking groove 12, the first return spring 112 is reset, and the locking block 114 pops out and engages with the locking groove 12, completing the installation of the photosensitive drum gear 5;

[0028] The utility model enables users or maintenance personnel to replace only the gear part without having to replace the entire photosensitive drum assembly or larger printer components, which greatly reduces maintenance costs. In addition, users or maintenance personnel can complete the installation and removal of the gear without complicated steps or tools, making the maintenance process smoother and reducing waiting time.

Claims

1. An integrated photosensitive drum, comprising a photosensitive drum housing, characterized in that: The outer wall of the photosensitive drum housing is symmetrically provided with heat dissipation holes, a photosensitive drum aluminum tube is movably connected to the interior of the photosensitive drum housing, one end of the photosensitive drum aluminum tube is fixedly connected to a connecting seat, an end of the connecting seat away from the photosensitive drum aluminum tube is movably connected to a photosensitive drum gear, an end of the photosensitive drum gear close to the connecting seat is fixedly connected to a connecting block, connecting components are symmetrically installed inside the connecting block, and fixed components are symmetrically installed inside the photosensitive drum housing; The connecting assembly includes a first cavity, a first return spring, a movable plate and a locking block, a first cavity is symmetrically opened inside the connecting block, a first return spring is symmetrically fixedly connected to one end of the first cavity, the other end of the first return spring is fixedly connected to the movable plate, the movable plate is slidingly connected to the first cavity, the end of the movable plate away from the first return spring is fixedly connected to the locking block, the end of the locking block away from the movable plate extends out of the upper end and the bottom end of the connecting block respectively, and the end of the locking block close to the connecting seat is set as an inclined surface.

2. The integrated photosensitive drum according to claim 1, characterized in that: A connecting groove is provided at one end of the connecting seat away from the photosensitive drum aluminum tube, and the connecting groove and the connecting block are plugged in. A locking groove is provided at one end inside the connecting groove, and the locking groove passes through the connecting seat, and the locking groove and the locking block are snap-connected.

3. The integrated photosensitive drum according to claim 2, wherein: An unlocking block is slidably connected inside the locking groove, and one end of the unlocking block extends out of the connecting seat at one end away from the locking block. The two ends of the unlocking block are symmetrically fixedly connected to the limiting blocks, and the limiting grooves are symmetrically provided inside the locking groove, and the limiting blocks and the limiting grooves are slidably connected.

4. The integrated photosensitive drum according to claim 1, wherein: One end of the photosensitive drum gear close to the connecting seat is symmetrically fixedly connected with a positioning block, and one end of the connecting seat away from the photosensitive drum aluminum tube is symmetrically provided with a positioning groove, and the positioning groove and the positioning block are plugged.

5. The integrated photosensitive drum according to claim 1, characterized in that: The fixing assembly includes a second cavity, a second return spring, a moving block, a slider, a push block and a fixed column, a second cavity is symmetrically opened inside the photosensitive drum casing, one end of the second cavity is fixedly connected to the second return spring, the other end of the second return spring is fixedly connected to the moving block, the moving block is slidingly connected to the inside of the second cavity, the end of the moving block away from the second return spring is symmetrically fixedly connected to the fixed column, the end of the fixed column away from the moving block extends toward the inside of the photosensitive drum casing, one end of the moving block is fixedly connected to the slider, the end of the slider away from the moving block extends out of one end of the photosensitive drum casing and is fixedly connected to the push block.

6. The integrated photosensitive drum according to claim 1, characterized in that: The outer side wall of the connecting seat is symmetrically provided with fixing grooves, and the fixing grooves and the fixing columns are plugged into each other.

7. The integrated photosensitive drum according to claim 1, characterized in that: A cross slot is provided at one end of the interior of the photosensitive drum shell, one end of the photosensitive drum aluminum tube is fixedly connected to a cross block, the cross block and the cross slot are plugged in, and the end of the cross block away from the photosensitive drum aluminum tube is fixedly connected to a connecting rod.

Images