Charging roller
By designing a detachable roller assembly structure, the problem of the charging roller being difficult to disassemble is solved, local components can be easily replaced, and replacement costs are reduced.
Patent Information
- Application Number
- CN202422814769.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-11-19
AI Technical Summary
The existing charging roller is not easy to disassemble for partial component replacement, resulting in increased cost and loss for overall replacement.
A roller assembly including a first roller body and a second roller body is designed. The combined structure of a connecting shaft, a limiting plate, a limiting groove and a bolt facilitates the disassembly of the charging roller and the replacement of local components. The specific implementation method is that the connecting shaft and the limiting plate are inserted into the limiting groove, the limiting plates are staggered and the transfer tube is sleeved, and the bolts are connected to the screw holes. During disassembly, the limiting plate and the limiting groove overlap, the connecting shaft and the limiting plate are pulled out, and the bolts are taken out to separate the roller body.
The charging roller can be easily disassembled and replaced with a portion of its components, thus reducing replacement costs.
Smart Images
Figure CN223377602U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of charging rollers, in particular to a charging roller. Background Art
[0002] A charging roller is a device used to charge the photosensitive drum. Its primary function is to ensure that the photosensitive material on the drum evenly absorbs static electricity, thereby capturing the document image during printing and producing clear printouts. The charging roller works by receiving an electric current from the copier's circuit system, acquiring a charge, and transferring it to the photosensitive drum. This alters the charge distribution on the drum, allowing the drum to evenly absorb static electricity and capture the document image. The charging roller is typically made of conductive rubber or organic conductive material, with tiny conductive particles on its surface to ensure even charge distribution. Its shape and size vary depending on the copier model and design. Existing charging rollers are mostly monolithic, requiring complete disposal and replacement upon damage, which increases costs. Therefore, it is necessary to provide a charging roller that is easily disassembled and replaced, reducing costs. Utility Model Content
[0003] The embodiment of the utility model provides a charging roller, which aims to solve the problem that the existing charging roller is difficult to disassemble and replace parts.
[0004] To achieve the above-mentioned purpose, the utility model provides a charging roller, comprising a roller assembly;
[0005] In which, the roller assembly includes a first roller body and a second roller body, one end of the first roller body is fixedly connected to a connecting shaft, and the side surface of the connecting shaft is fixedly connected to two limiting plates, one end of the second roller body is provided with a connecting hole, and limiting grooves are provided on both sides of the inner wall of the connecting hole, the connecting shaft and the two limiting plates are passed through the connecting hole and the limiting groove and are clamped in the interior of the positioning groove, a positioning groove is provided in the interior of the second roller body, and the positioning groove and the connecting hole are communicated, the opposite back surfaces of the first roller body and the second roller body are fixedly connected to a rotating shaft, and the side surfaces of the first roller body and the second roller body are both sleeved with transfer tubes.
[0006] As a preferred solution of the present invention, one end of the first roller body and the second roller body are both fixedly connected to a limiting head, and the diameter of the limiting head is adapted to the transfer tube.
[0007] As a preferred solution of the present invention, the total diameter of the connecting hole and the two limiting grooves matches the positioning groove.
[0008] As a preferred solution of the present invention, screw holes are provided on opposite sides of the first roller body and the second roller body, one end of the rotating shaft is fixedly connected with a bolt, and the bolt is threadedly connected inside the screw hole.
[0009] As a preferred solution of the present invention, the side surfaces of the first roller body and the second roller body are fixedly connected with a plurality of limit bars, the inner wall of the transfer tube is fixedly connected with a plurality of strip grooves, and the plurality of limit bars are clamped inside the strip grooves.
[0010] As a preferred solution of the present invention, the transfer tube is made of sponge.
[0011] Compared with the prior art, the beneficial effects of the present invention are:
[0012] 1. When using the charging roller, first, the connecting shaft and the limiting plate at one end of the first roller body are passed through the connecting hole and the limiting groove and inserted into the positioning groove, and then the first roller body is controlled to rotate 90° relative to the second roller body, so that the limiting plates on both sides of the connecting shaft can be controlled to rotate 90° and stagger the limiting grooves, and then the limiting plates can play a limiting effect, so as to facilitate the connection of the first roller body and the second roller body, and then the bolt is threaded into the screw hole, and the transfer tube is sleeved on the side surfaces of the first roller body and the second roller body for use. When disassembling, first control the first roller body to rotate 90° relative to the second roller body so that the limiting plate and the limiting groove overlap, and then the connecting shaft and the limiting plate are pulled out from the connecting hole and the limiting groove, so that the first roller body and the second roller body can be separated from each other, and then the bolt is removed from the screw hole to disassemble the rotating shaft. Compared with the charging roller in the prior art, the present invention can facilitate the disassembly of the charging roller through the cooperation of the above structures, and thus the local structure of the charging roller can be replaced, thereby reducing cost loss. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the overall structure of the utility model;
[0014] Figure 2 This is a disassembled diagram of the first roller structure of the utility model;
[0015] Figure 3 This is a schematic diagram of the structure of the first roller body of the utility model;
[0016] Figure 4 This is a schematic diagram of the structure of the second roller body of the utility model;
[0017] Figure 5 This is a cross-sectional view of the second roller structure of the utility model;
[0018] Figure 6 This is a schematic diagram of the transfer tube structure of the utility model.
[0019] In the figure: 100, roller assembly; 101, first roller; 102, second roller; 103, connecting shaft; 104, limiting plate; 105, connecting hole; 106, limiting groove; 107, positioning groove; 108, rotating shaft; 109, transfer tube; 111, limiting head; 121, screw hole; 122, bolt; 131, limiting strip; 132, strip groove. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0021] See also Figure 1 - Figure 6 , the utility model provides a charging roller, including a roller assembly 100;
[0022] Among them, the roller assembly 100 includes a first roller body 101 and a second roller body 102, one end of the first roller body 101 is fixedly connected to a connecting shaft 103, and the side surface of the connecting shaft 103 is fixedly connected to two limiting plates 104, one end of the second roller body 102 is provided with a connecting hole 105, and limiting grooves 106 are provided on both sides of the inner wall of the connecting hole 105, the connecting shaft 103 and the two limiting plates 104 are all passed through the connecting hole 105 and the limiting grooves 106 and are clamped in the inside of the positioning groove 107, a positioning groove 107 is provided in the inside of the second roller body 102, and the positioning groove 107 is communicated with the connecting hole 105, the opposite back surfaces of the first roller body 101 and the second roller body 102 are fixedly connected with a rotating shaft 108, and the side surfaces of the first roller body 101 and the second roller body 102 are both sleeved with transfer tubes 109.
[0023] In a specific embodiment, the roller assembly 100 is provided to facilitate the disassembly of the entire structure of the charging roller, and then the various components of the charging roller can be partially replaced, thereby reducing the cost loss of the charging roller. When in use, the connecting shaft 103 and the limiting piece 104 at one end of the first roller body 101 are first inserted into the interior of the positioning groove 107 through the connecting hole 105 and the limiting groove 106, and at the same time, the first roller body 101 is controlled to rotate 90 degrees relative to the second roller body 102, so that the limiting pieces 104 on both sides of the connecting shaft 103 can be controlled to rotate 90 degrees, so that they can be staggered with the limiting groove 106, and then the limiting pieces 104 can be controlled to rotate 90 degrees. 104 can play a limiting role, and finally the transfer tube 109 is sleeved on the side surfaces of the first roller body 101 and the second roller body 102 for use. When disassembling, first control the first roller body 101 to rotate 90° relative to the second roller body 102 so that the limiting piece 104 and the limiting groove 106 coincide with each other, and then the connecting shaft 103 and the limiting piece 104 are pulled out from the connecting hole 105 and the limiting groove 106, so that the first roller body 101 and the second roller body 102 can be separated from each other, and finally the bolt 122 is taken out from the screw hole 121 to disassemble the rotating shaft 108, so as to facilitate the partial disassembly and replacement of the charging roller, reducing cost losses.
[0024] See also Figure 2 - Figure 6 One end of the first roller body 101 and the second roller body 102 are fixedly connected to the limiting head 111, and the diameter of the limiting head 111 is adapted to the transfer tube 109.
[0025] In a specific embodiment, the limiting head 111 facilitates limiting the transfer tube 109 , thereby enhancing the practicality of the charging roller.
[0026] See also Figure 2 - Figure 6 The total diameter of the connecting hole 105 and the two limiting grooves 106 matches the positioning groove 107.
[0027] In a specific embodiment, the connection hole 105 and the limiting groove 106 can facilitate the plug-in connection between the connecting shaft 103 and the limiting piece 104, thereby improving the connection stability.
[0028] See also Figure 2 - Figure 6 The first roller body 101 and the second roller body 102 are both provided with screw holes 121 on their opposite sides, and one end of the rotating shaft 108 is fixedly connected with a bolt 122 , which is threadedly connected to the inside of the screw hole 121 .
[0029] In a specific embodiment, the bolt 122 is threadedly connected inside the screw hole 121 to improve the convenience of disassembly and assembly of the rotating shaft 108 and the connection stability of the rotating shaft 108.
[0030] See also Figure 2 - Figure 6 The side surfaces of the first roller body 101 and the second roller body 102 are fixedly connected with a plurality of limit bars 131 , and the inner wall of the transfer tube 109 is fixedly connected with a plurality of strip grooves 132 , and the plurality of limit bars 131 are all clamped inside the strip grooves 132 .
[0031] In a specific embodiment, the limiting strip 131 is clamped inside the strip groove 132 to improve the connection stability between the transfer tube 109 and the first roller body 101 and the second roller body 102, and at the same time prevent the transfer tube 109 from rotating relative to the first roller body 101 and the second roller body 102.
[0032] See also Figure 2 - Figure 6 , the transfer tube 109 is made of sponge.
[0033] In a specific embodiment, the transfer tube 109 made of sponge can avoid abrasion of the printed piece during transfer, thereby enhancing the practicality of the charging roller.
[0034] Working principle: When in use, first, the connecting shaft 103 and the limiting piece 104 at one end of the first roller body 101 are inserted into the interior of the positioning groove 107 through the connecting hole 105 and the limiting groove 106, and at the same time, the first roller body 101 is controlled to rotate 90 degrees relative to the second roller body 102, so that the limiting pieces 104 on both sides of the connecting shaft 103 can be controlled to rotate 90 degrees, and then can be staggered with the limiting groove 106 so that the limiting piece 104 can play a limiting effect. Finally, the transfer tube 109 is sleeved on the first roller body 101 and the second roller body The side surface of the body 102 can be used. When disassembling, first control the first roller body 101 to rotate 90 degrees relative to the second roller body 102, so that the limiting piece 104 and the limiting groove 106 can overlap, and then the connecting shaft 103 and the limiting piece 104 are pulled out from the connecting hole 105 and the limiting groove 106, so that the first roller body 101 and the second roller body 102 can be separated from each other, and finally the bolt 122 is taken out from the screw hole 121 to disassemble the rotating shaft 108, so as to facilitate the partial disassembly and replacement of the charging roller to reduce cost loss.
[0035] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.
[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A charging roller, characterized in that: include: A roller assembly (100) comprising a first roller (101) and a second roller (102), wherein one end of the first roller (101) is fixedly connected to a connecting shaft (103), and the side surface of the connecting shaft (103) is fixedly connected to two limiting plates (104), and one end of the second roller (102) is provided with a connecting hole (105), and both sides of the inner wall of the connecting hole (105) are provided with limiting grooves (106), and the connecting shaft (103) and the two limiting plates (104) are fixedly connected to the side surface of the connecting shaft (103). The limiting pieces (104) pass through the connecting hole (105) and the limiting groove (106) and are clamped in the interior of the positioning groove (107); a positioning groove (107) is provided inside the second roller body (102); the positioning groove (107) and the connecting hole (105) are communicated; the opposite sides of the first roller body (101) and the second roller body (102) are fixedly connected with a rotating shaft (108); the side surfaces of the first roller body (101) and the second roller body (102) are both sleeved with a transfer tube (109).
2. A charging roller according to claim 1, characterized in that: One end of each of the first roller body (101) and the second roller body (102) is fixedly connected to a limiting head (111), and the diameter of the limiting head (111) is adapted to the transfer tube (109).
3. The charging roller according to claim 1, wherein: The total diameter of the connecting hole (105) and the two limiting grooves (106) matches that of the positioning groove (107).
4. The charging roller according to claim 1, wherein: The opposite sides of the first roller body (101) and the second roller body (102) are both provided with screw holes (121), one end of the rotating shaft (108) is fixedly connected with a bolt (122), and the bolt (122) is threadedly connected inside the screw hole (121).
5. The charging roller according to claim 1, wherein: The side surfaces of the first roller body (101) and the second roller body (102) are fixedly connected with a plurality of limiting strips (131), the inner wall of the transfer tube (109) is fixedly connected with a plurality of strip grooves (132), and the plurality of limiting strips (131) are all clamped inside the strip grooves (132).
6. The charging roller according to claim 1, wherein: The transfer tube (109) is made of sponge.