Printer charging roller

Abstract

The utility model provides a printer charging roller, which comprises a charging roller body, a mounting block and a plug-in positioning block, the left end of the charging roller body is fixedly provided with the mounting block, the right end of the charging roller body is fixedly provided with the plug-in positioning block, the right end of the plug-in positioning block is provided with a first plug-in groove, and the first plug-in groove is internally provided with a second plug-in groove. A first threaded groove and a second threaded groove are formed in the left side and the right side of the lower end of the mounting block correspondingly, a first threaded hole and a second threaded hole are formed in the upper ends of the first threaded groove and the second threaded groove in a penetrating mode correspondingly, and a first inner threaded piece and a second inner threaded piece are horizontally fixed to the upper ends in the first threaded groove and the second threaded groove correspondingly. According to the design, the problem that the mounting stability of the charging roller in an original device is low is solved, the built-in hidden bolt structure is reasonable in structure and good in practicability, the built-in hidden bolt structure is adopted, mounting and fixing between the charging roller and the printer clamp can be achieved by screwing the built-in hidden bolt structure, and therefore the mounting stability of the charging roller can be improved, operation is easy, and quick mounting and using are convenient.

Description

Technical Field

[0001] The utility model relates to a charging roller for a printer, belonging to the technical field of printers. Background Art

[0002] The charging roller is a new environmentally friendly charging method. This method reduces the generation of ozone, and the charging is uniform and noiseless. It is widely used in laser printers and also in low-speed copiers. There are many types of charging rollers, and whether they are easy to install is an important part of the printer.

[0003] Patent No.: CN219320655U, mentions a charging roller for a printer that is easy to install. By providing a fixed structure, the stick body is moved so that the mounting seat is moved to the inside of the clamp. Under the squeezing of the clamp, the latch will move to the inside of the movable groove. Under the elastic force of the reset spring, the reset plate will drive the latch to move to the inside of the clamp, so that the stick body and the clamp are mutually connected through the latch, thereby realizing the function of facilitating installation of the device, thereby improving the applicability of the charging roller for the printer when in use. However, since the reset spring has resilience, once the printer vibrates during operation, the reset spring is likely to drive the latch to shake, thereby affecting the installation stability of the charging roller. Now, a printer charging roller is urgently needed to solve the above-mentioned problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a printer charging roller to solve the problems raised in the above-mentioned background technology. The utility model has a reasonable structure and good practicality. It adopts an internal hidden bolt structure, which can be screwed to achieve the installation and fixation between the charging roller and the printer clamp, thereby improving the installation stability of the charging roller. The utility model is simple to operate and is easy to install and use quickly.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a printer charging roller, comprising a charging roller body, a mounting block and a plug-in positioning block, the left end of the charging roller body is fixed with the mounting block, the right end of the charging roller body is fixed with the plug-in positioning block, the right end of the plug-in positioning block is provided with a first plug-in slot, the first plug-in slot is provided with a second plug-in slot inside, the left and right sides of the lower end of the mounting block are respectively provided with a first threaded groove and a second threaded groove, the upper ends of the first threaded groove and the second threaded groove are respectively penetrated with a first threaded hole and a second threaded hole, the upper ends of the first threaded groove and the second threaded groove are respectively horizontally fixed with a first inner screw plate and a second inner screw plate, the first threaded groove and the second threaded groove are both screwed with a first hollow outer screw shell and a second hollow outer screw shell through threads, and the first inner screw plate and the second inner screw plate are respectively screwed with a first inner hexagonal bolt and a second inner hexagonal bolt through threads.

[0006] Furthermore, the annular side fixed sleeve of the charging roller body is provided with a wear-resistant conductive sleeve.

[0007] Furthermore, the upper edge of the first hollow outer spiral shell abuts against the first inner spiral sheet.

[0008] Furthermore, the upper edge of the second hollow outer spiral shell abuts against the second inner spiral sheet.

[0009] Furthermore, the threaded end of the first hexagon socket bolt is located in the first threaded hole.

[0010] Furthermore, the threaded end of the second hexagon socket bolt is located in the second threaded hole.

[0011] The beneficial effects of the utility model: the utility model is a printer charging roller, because the utility model adds a mounting block, a second hollow outer screw shell, a second inner screw sheet, a second inner hexagonal bolt, a first hollow outer screw shell, a first inner screw sheet, a first inner hexagonal bolt and a plug-in positioning block, our design improvement and actual use show that the device has a reasonable structure and good practicality, adopts an internal hidden bolt structure, and the charging roller and the printer fixture can be installed and fixed by twisting it, thereby improving the installation stability of the charging roller, and the operation is simple, which is convenient for quick installation and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0013] Figure 1 This is a three-dimensional schematic diagram of the overall structure of a printer charging roller of the utility model;

[0014] Figure 2 This is a schematic diagram of the interior of a mounting block for a charging roller of a printer according to the utility model;

[0015] Figure 3 This is a schematic diagram of the interior of a second hollow outer spiral shell of a printer charging roller of the utility model;

[0016] Figure 4 This is a cross-sectional schematic diagram of a plug-in positioning block of a printer charging roller of the utility model;

[0017] In the figure: 1-charging roller body, 2-wear-resistant conductive sleeve, 3-mounting block, 4-first threaded hole, 5-second threaded hole, 6-second threaded groove, 7-second hollow outer screw shell, 8-second inner screw plate, 9-second inner hexagonal bolt, 10-first threaded groove, 11-first hollow outer screw shell, 12-first inner screw plate, 13-first inner hexagonal bolt, 14-plug-in positioning block, 15-first plug-in slot, 16-second plug-in slot. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] See also Figure 1-Figure 4 The utility model provides a technical solution: a printer charging roller, including a charging roller body 1, a mounting block 3 and a plug-in positioning block 14, the left end of the charging roller body 1 is fixed with the mounting block 3, the right end of the charging roller body 1 is fixed with the plug-in positioning block 14, the right end of the plug-in positioning block 14 is provided with a first plug-in slot 15, the first plug-in slot 15 is provided with a second plug-in slot 16, the left and right sides of the lower end of the mounting block 3 are respectively provided with a first thread groove 10 and a second thread groove 6, the upper ends of the first thread groove 10 and the second thread groove 6 are respectively penetrated A first threaded hole 4 and a second threaded hole 5 are provided, a first inner screw plate 12 and a second inner screw plate 8 are respectively fixed horizontally at the upper ends of the first thread groove 10 and the second thread groove 6, a first hollow outer screw shell 11 and a second hollow outer screw shell 7 are screwed together in the first thread groove 10 and the second thread groove 6 through threads, a first inner hexagon socket bolt 13 and a second inner hexagon socket bolt 9 are respectively screwed together in the first inner screw plate 12 and the second inner screw plate 8 through threads, this design solves the problem of low installation stability of the charging roller in the original device.

[0020] As the first embodiment of the utility model: the annular side of the charging roller body 1 is fixedly sleeved with a wear-resistant conductive sleeve 2, and the added wear-resistant conductive sleeve 2 can protect the annular side of the charging roller body 1. The upper edge of the first hollow outer screw shell 11 is against the first inner screw plate 12, and the first thread groove 10 is provided to facilitate the installation and use of the first hollow outer screw shell 11 and the first inner screw plate 12. The upper edge of the second hollow outer screw shell 7 is against the second inner screw plate 8, and the second thread groove 6 is provided to facilitate the installation and use of the second hollow outer screw shell 7 and the second inner screw plate 8. The threaded end of the first hexagon socket bolt 13 is in the first threaded hole 4, and the threaded end of the first hexagon socket bolt 13 added can penetrate the first threaded hole 4 and be fixed to the thread groove of the external printer fixture. The threaded end of the second hexagon socket bolt 9 is in the second threaded hole 5, and the threaded end of the second hexagon socket bolt 9 added can penetrate the second threaded hole 5 and be fixed to the thread groove of the external printer fixture.

[0021] As a second embodiment of the utility model: before the charging roller body 11 needs to be installed and used, the first inner screw plate 12 and the second inner screw plate 8 are glued and fixed to the upper ends of the first thread groove 10 and the second thread groove 6 respectively by glue, and then the first hollow outer screw shell 11 and the second hollow outer screw shell 7 are screwed into the first thread groove 10 and the second thread groove 6 respectively by threads, and then the first hexagon socket bolt 13 and the second hexagon socket bolt 9 are screwed into the first inner screw plate 12 and the second inner screw plate 8 by using an external hexagon socket wrench, and then the plug-in positioning block 14 is aligned with the positioning protrusion on one side of the external printer fixture, The positioning protrusion on one side of the external printer fixture is inserted into the first plug-in slot 15 and the second plug-in slot 16 to complete the preliminary installation of the charging roller body 1. Then, the first hexagon socket bolt 13 and the second hexagon socket bolt 9 are tightened using an external hexagon socket wrench so that the threaded end of the first hexagon socket bolt 13 passes through the first threaded hole 4 and is fixed to the threaded groove of the external printer fixture, and the threaded end of the second hexagon socket bolt 9 passes through the second threaded hole 5 and is fixed to the threaded groove of the external printer fixture to complete the installation and fixation of the charging roller body 1 (Note: the external printer fixture has a similar structure to the printer fixture in the above-mentioned comparative document).

[0022] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0023] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A printer charging roller, comprising a charging roller body (1), a mounting block (3) and a plug-in positioning block (14), characterized in that: A mounting block (3) is fixed to the left end of the charging roller body (1), and a plug-in positioning block (14) is fixed to the right end of the charging roller body (1); A first plugging slot (15) is provided at the right end of the plugging and positioning block (14), and a second plugging slot (16) is provided inside the first plugging slot (15); The left and right sides of the lower end of the mounting block (3) are respectively provided with a first thread groove (10) and a second thread groove (6); the upper ends of the first thread groove (10) and the second thread groove (6) are respectively penetrated with a first thread hole (4) and a second thread hole (5); the upper ends of the first thread groove (10) and the second thread groove (6) are respectively horizontally fixed with a first inner screw plate (12) and a second inner screw plate (8); the first thread groove (10) and the second thread groove (6) are both screwed with a first hollow outer screw shell (11) and a second hollow outer screw shell (7) through threads; the first inner screw plate (12) and the second inner screw plate (8) are respectively screwed with a first inner hexagonal bolt (13) and a second inner hexagonal bolt (9) through threads.

2. A printer charging roller according to claim 1, characterized in that: The annular side fixed sleeve of the charging roller body (1) is provided with a wear-resistant conductive sleeve (2).

3. A printer charging roller according to claim 1, characterized in that: The upper edge of the first hollow outer spiral shell (11) abuts against the first inner spiral sheet (12).

4. A printer charging roller according to claim 1, characterized in that: The upper edge of the second hollow outer spiral shell (7) abuts against the second inner spiral sheet (8).

5. A printer charging roller according to claim 1, characterized in that: The threaded end of the first hexagon socket bolt (13) is located in the first threaded hole (4).

6. A printer charging roller according to claim 1, characterized in that: The threaded end of the second hexagon socket bolt (9) is located in the second threaded hole (5).

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