Developing roller structure convenient to assemble

Abstract

The utility model relates to the technical field of developing rollers, in particular to a developing roller structure convenient to assemble, which comprises a developing roller shaft, a developing roller body is sleeved on the surface of the developing roller shaft, a fillet is arranged at one end of the developing roller body, and an inclined surface is arranged at one end of the developing roller body far away from the fillet; one end of the developing roller shaft close to the inclined surface is provided with an inclined angle; an anti-falling structure is arranged at the end part of the developing roller shaft and is used for increasing the firmness of the transmission gear after being mounted. The round corners, the inclined surfaces and the oblique angles are arranged on the surface of the developing roller shaft, so that the appearance is adjusted, the cost is reduced, meanwhile, the shape adjustment and assembly of the developing roller shaft are simplified, the assembly speed is increased, and the productivity is improved; the material is changed into rubber, so that the occurrence of horizontal strips in the aging process is improved; the transmission gear is prevented from falling off through the anti-falling structure, and the firmness of the transmission gear after installation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of developing rollers, in particular to a developing roller structure which is easy to assemble. Background Art

[0002] Laser printers are one of the most widely used computer external output devices, and the developing roller is an important component of laser printers. During the imaging process, the developing roller outputs the toner in the developing cartridge by rotating.

[0003] However, the existing developing roller has a complex appearance and high manufacturing cost; moreover, the existing developing roller is not simplified enough during assembly, which reduces the assembly speed and production capacity; at the same time, the material of the existing developing roller cannot improve the appearance of horizontal pressure strips during the aging process, which brings great trouble to people's use. Utility Model Content

[0004] The purpose of the present invention is to provide a developing roller structure that is easy to assemble, so as to solve the problems in the above background technology of high manufacturing cost, insufficient simplification during assembly and reduced production capacity.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a developing roller structure that is easy to assemble, comprising a developing roller shaft, a developing roller body being mounted on the surface of the developing roller shaft, one end of the developing roller body being provided with a rounded corner, and an end of the developing roller body being provided with an inclined surface away from the rounded corner; an inclined angle being provided at the end of the developing roller shaft close to the inclined surface; an anti-slip structure being provided at the end of the developing roller shaft, and the anti-slip structure being used to increase the firmness of the transmission gear after installation.

[0006] Preferably, the developing roller shaft is cylindrical in shape, and the diameter of the developing roller shaft is 11.95-12.0 MM; and the length of the developing roller shaft is 524±0.15 MM.

[0007] Preferably, the specification of the rounded corner is R2.0; the angle between the inclined surface and the developing roller shaft is 45°, the length of the inclined surface is 10±0.10MM; and the chamfer specification of the inclined corner is C2.0.

[0008] Preferably, the anti-slip structure includes an anti-slip groove, a pin, a rubber anti-slip block and a spring, and the anti-slip groove is provided on the surface of the developing roller shaft.

[0009] Preferably, a rubber anti-slip block is hinged to the inside of the anti-slip groove through a pin, and the top of the rubber anti-slip block is higher than the surface of the developing roller shaft. The rubber anti-slip block is fixed to one end of the anti-slip groove with a spring plate, which lifts one end of the rubber anti-slip block to prevent the transmission gear from falling off after installation.

[0010] Compared with the prior art, the beneficial effects of the present invention are: the developing roller structure that is easy to assemble adjusts the appearance and reduces costs by setting fillets, bevels and bevels on the surface of the developing roller shaft. At the same time, the shape of the developing roller shaft is adjusted, the assembly is simplified, the assembly speed is increased, and the production capacity is increased; the material is changed to rubber, which improves the appearance of horizontal pressure bars during the aging process; when the transmission gear is assembled, the anti-slip structure is used to prevent the transmission gear from falling off. When the anti-slip structure is implemented, the elastic sheet inside the anti-slip groove pushes the rubber anti-slip block to rotate around the pin column, so that the outer side of the rubber anti-slip block is tilted to prevent the installed transmission gear from falling out, thereby increasing the firmness of the transmission gear after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the three-dimensional appearance structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0013] Figure 3 This is a side-view enlarged structural diagram of the present utility model;

[0014] Figure 4 It is a partial cross-sectional structural schematic diagram of the utility model;

[0015] Figure 5 It is a schematic diagram of the developing roller structure in the prior art.

[0016] In the figure: 1. developing roller shaft; 11. rounded corner; 12. inclined surface; 13. oblique angle; 2. developing roller body; 3. anti-slip structure; 31. anti-slip groove; 32. pin; 33. rubber anti-slip block; 34. spring piece. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. In addition, the terms "first", "second", "third", "upper, lower, left, right", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. At the same time, in the description of the present invention, unless otherwise clearly stipulated and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. 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.

[0018] The utility model provides a developing roller structure that is easy to assemble. Figure 1 、 Figure 2 as well as Figure 3 As shown, it includes a developing roller shaft 1, the surface of the developing roller shaft 1 is covered with a developing roller body 2, one end of the developing roller body 2 is provided with a rounded corner 11, the shape of the developing roller shaft 1 is cylindrical, and the diameter of the developing roller shaft 1 is 11.95-12.0MM, and the length of the developing roller shaft 1 is 524±0.15MM; the end of the developing roller body 2 away from the rounded corner 11 is provided with a bevel 12, the specification of the rounded corner 11 is R2.0, the angle between the bevel 12 and the developing roller shaft 1 is 45°, and the length of the bevel 12 is 10±0.10MM; the end of the developing roller shaft 1 close to the bevel 12 is provided with a bevel 13, and the chamfer specification of the bevel 13 is C2.0.

[0019] During implementation, by setting rounded corners 11, bevels 12 and bevels 13 on the surface of the developing roller shaft 1, the appearance is adjusted and the cost is reduced. At the same time, the shape of the developing roller shaft is adjusted, the assembly is simplified, the assembly speed is increased, and the production capacity is increased; the material is changed to rubber to improve the appearance of horizontal pressure bars during the aging process.

[0020] Furthermore, if Figure 1 as well as Figure 4 As shown, an anti-slip structure 3 is provided at the end of the developing roller shaft 1, and the anti-slip structure 3 is used to increase the firmness of the transmission gear after installation. The anti-slip structure 3 includes an anti-slip groove 31, a pin 32, a rubber anti-slip block 33 and a spring 34. The anti-slip groove 31 is opened on the surface of the developing roller shaft 1, and the interior of the anti-slip groove 31 is hinged with a rubber anti-slip block 33 through a pin 32, and the top of the rubber anti-slip block 33 is higher than the surface of the developing roller shaft 1. The rubber anti-slip block 33 and one end of the anti-slip groove 31 are fixedly connected with a spring 34. The spring 34 lifts one end of the rubber anti-slip block 33 to prevent the transmission gear from falling off after installation.

[0021] During implementation, the elastic piece 34 inside the anti-slip groove 31 pushes the rubber anti-slip block 33 to rotate around the pin 32, so that the outer side of the rubber anti-slip block 33 is tilted to prevent the installed transmission gear from falling out, thereby increasing the firmness of the installed transmission gear.

[0022] Working principle: When in use, by setting the rounded corners 11, the bevel 12 and the bevel 13 on the surface of the developing roller shaft 1, the appearance is adjusted and the cost is reduced. At the same time, the shape of the developing roller shaft is adjusted, the assembly is simplified, the assembly speed is increased, and the production capacity is increased; the material is changed to rubber to improve the appearance of horizontal pressure bars during the aging process.

[0023] When the transmission gear is assembled, the anti-slip structure 3 is used to prevent the transmission gear from falling off. When the anti-slip structure 3 is implemented, the elastic piece 34 inside the anti-slip groove 31 pushes the rubber anti-slip block 33 to rotate around the pin 32, so that the outer side of the rubber anti-slip block 33 is tilted to prevent the installed transmission gear from falling out, thereby increasing the firmness of the transmission gear after installation.

[0024] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A developer roller structure that is easy to assemble, comprising a developer roller shaft (1), characterized in that: The surface of the developing roller shaft (1) is provided with a developing roller body (2), one end of the developing roller body (2) is provided with a rounded corner (11), and the end of the developing roller body (2) away from the rounded corner (11) is provided with an inclined surface (12); the end of the developing roller shaft (1) close to the inclined surface (12) is provided with an inclined angle (13); the end of the developing roller shaft (1) is provided with an anti-slip structure (3), and the anti-slip structure (3) is used to increase the firmness of the transmission gear after installation.

2. The developer roller structure that is easy to assemble according to claim 1, characterized in that: The developing roller shaft (1) is cylindrical in shape, and the diameter of the developing roller shaft (1) is 11.95-12.0 mm; and the length of the developing roller shaft (1) is 524±0.15 mm.

3. The developer roller structure that is easy to assemble according to claim 1, characterized in that: The specification of the fillet (11) is R2.0; the angle between the inclined surface (12) and the developing roller shaft (1) is 45°, and the length of the inclined surface (12) is 10±0.10MM; the chamfer specification of the inclined angle (13) is C2.

0.

4. The developer roller structure that is easy to assemble according to claim 1, characterized in that: The anti-slip structure (3) comprises an anti-slip groove (31), a pin (32), a rubber anti-slip block (33) and a spring (34); the anti-slip groove (31) is provided on the surface of the developing roller shaft (1).

5. The developer roller structure that is easy to assemble according to claim 4, characterized in that: A rubber anti-slip block (33) is hingedly connected to the anti-slip groove (31) via a pin (32), and the top of the rubber anti-slip block (33) is higher than the surface of the developing roller shaft (1). A spring piece (34) is fixedly connected to one end of the rubber anti-slip block (33) and the anti-slip groove (31). The spring piece (34) lifts up one end of the rubber anti-slip block (33) to prevent the transmission gear from falling off after installation.

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