Side plate step shaft structure of paper shredder

Abstract

The utility model relates to the technical field of paper shredders, in particular to a paper shredder side plate step shaft structure which comprises a side plate and a shaft body, a mounting hole matched with one end of the shaft body is formed in the side plate, a limiting assembly is arranged in the mounting hole, and a step used for allowing the shaft body to be inserted is arranged on the side, close to the shaft body, of the mounting hole. The shaft body is inserted into the mounting hole from the step, one end of the shaft body is axially positioned through the limiting assembly, the step is arranged on one side of the mounting hole in the side plate, the step is directly inserted into the mounting hole from the step, the shaft body is guided and supported through the step, and due to the fact that the limiting assembly is further arranged in the mounting hole, one end of the shaft body can be axially positioned. And the processing cost is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of shredders, in particular to a stepped shaft structure of a shredder side plate. Background Art

[0002] In the current office environment, shredders have become a very common office equipment. To ensure the normal operation of the shredder, gears are generally installed on the side plates of the shredder. The traditional method is to use a lathe to machine a stepped shaft, then turn out a regular polygon-shaped shaft neck at one end of the stepped shaft, and at the same time open a regular polygon-shaped jack in the side plate, and directly press the shaft neck of the stepped shaft into the regular polygon-shaped jack using a pressing device. Then, the shaft head on the stepped shaft is used for positioning. However, using such a stepped shaft requires turning out the shaft head and the regular polygon-shaped shaft neck, and its processing cost and processing accuracy are relatively high, which is not conducive to cost control. Therefore, in order to solve the above-mentioned problems and defects, it is very necessary to improve the structure of the existing stepped shaft. Content of the Utility Model

[0003] The purpose of the utility model is to provide a stepped shaft structure of a shredder side plate, and this device solves the problems of high processing cost and high processing accuracy of the stepped shaft.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A stepped shaft structure of a shredder side plate, including a side plate and a shaft body. An installation hole adapted to one end of the shaft body is provided on the side plate. A limiting component is arranged in the installation hole. A step is provided on one side of the installation hole close to the shaft body. The step is in a sleeve shape for one end of the shaft body to be inserted. After the shaft body is inserted into the installation hole from the step, one end of it is axially positioned through the limiting component.

[0005] The above technical solution sets a step on one side of the installation hole on the side plate, directly inserts the step into the installation hole, guides and supports the shaft body through the step. Since a limiting component is also arranged in the installation hole, one end of the shaft body can be axially positioned. This scheme directly adopts the method of a smooth shaft body, does not require machining of the shaft body, and in addition, the cooperation between the shaft body and the installation hole does not require very high machining accuracy, reducing the manufacturing cost of the shaft body.

[0006] The limiting component includes at least one limiting block, and the limiting block is fixedly arranged on the inner wall of the installation hole.

[0007] The above technical solution sets the limiting block, and the limiting block is fixedly connected to the installation hole. The shaft body can be positioned by abutting one end of the shaft body against the limiting block, and the installation is quick and convenient.

[0008] The limiting component has two limiting blocks, and the two limiting blocks are symmetrically distributed on the inner wall of the installation hole.

[0009] In the above technical solution, two limiting blocks are arranged in the mounting hole, and the two limiting blocks are symmetrically arranged in the mounting hole respectively. One end of the shaft body abuts against the two limiting blocks at the same time, thereby improving the strength of the limiting component and ensuring the use effect of the shaft body.

[0010] The step is pulled out from the side plate. The step and the side plate are of an integral structure, and the shaft body and the step are in interference fit.

[0011] The step of the above technical solution can be directly punched out from the mounting hole without making a step and then welding it to the mounting hole, saving material cost and welding cost. Moreover, the step and the shaft body are in interference fit, ensuring the connection effect between the shaft body and the side plate.

[0012] The shaft body is of a cylindrical structure.

[0013] The above technical solution adopts a cylindrical shaft body, without the need for stepped shaft machining on the shaft body, being suitable for mass production and further reducing the manufacturing cost.

[0014] The technical effects and advantages of the present utility model:

[0015] 1. In this solution, a step is arranged on one side of the mounting hole on the side plate. The step is directly inserted into the mounting hole from the step, guiding and supporting the shaft body through the step. Since a limiting component is also arranged in the mounting hole, one end of the shaft body can be axially positioned, effectively reducing the processing cost.

[0016] 2. In this solution, the method of directly using a smooth shaft body is adopted, without the need for processing the shaft body, and the fit between the shaft body and the mounting hole does not require high machining accuracy, further reducing the manufacturing cost.

[0017] 3. In this solution, the limiting block is fixedly connected to the mounting hole, and the positioning of the shaft body can be achieved by abutting one end of the shaft body against the limiting block, with quick and convenient installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a perspective view of one angle of the stepped shaft structure of the side plate of the shredder provided by the present utility model;

[0019] Figure 2 is a sectional view of the stepped shaft structure of the side plate of the shredder provided by the present utility model;

[0020] Figure 3 is a perspective view of another angle of the stepped shaft structure of the side plate of the shredder provided by the present utility model;

[0021] Figure 4 is Figure 3 the enlarged structural schematic diagram at A in

[0022] Reference numerals: 1, side plate; 101, mounting hole; 2, shaft body; 3, step; 4, limiting block. Detailed implementation mode

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] Embodiment

[0025] This embodiment provides a stepped shaft structure of a shredder side plate 1 as shown in Figure 1 and Figure 2 It includes a side plate 1 and a shaft body 2. The side plate 1 is provided with a mounting hole 101 adapted to one end of the shaft body 2. A limiting component is arranged in the mounting hole 101. A step 3 is arranged on one side of the mounting hole 101 close to the shaft body 2. The step 3 is in a sleeve shape for the shaft body 2 to be inserted. The shaft body 2 is inserted into the mounting hole 101 from the step 3, and one end of the shaft body 2 is axially positioned through the limiting component. In this embodiment, a step 3 is arranged on one side of the mounting hole 101 on the side plate 1, and the step 3 is directly inserted into the mounting hole 101 from the step 3. The shaft body 2 is guided and supported by the step 3. Since a limiting component is also arranged in the mounting hole 101, one end of the shaft body 2 can be axially positioned. This solution directly adopts the smooth shaft body 2 method, without the need to process the shaft body 2. In addition, the cooperation between the shaft body 2 and the mounting hole 101 does not require very high machining accuracy, reducing the manufacturing cost of the shaft body 2.

[0026] Again, as shown in Figure 2 The shaft body 2 of this embodiment is of a cylindrical structure. Therefore, there is no need to process a stepped shaft on the shaft body 2, which is suitable for mass production and further reduces the manufacturing cost.

[0027] As shown in Figure 3 and Figure 4 The limiting component includes at least one limiting block 4, and the limiting block 4 is fixedly arranged on the inner wall of the mounting hole 101. In this embodiment, the limiting component has two limiting blocks 4, and the two limiting blocks 4 are symmetrically distributed on the inner wall of the mounting hole 101. The limiting block 4 is fixedly connected to the mounting hole 101. The shaft body 2 can be positioned by abutting one end of the shaft body 2 against the limiting block 4, and the installation is quick and convenient.

[0028] Furthermore, the two limiting blocks 4 of this embodiment can be formed by extruding the two side hole walls of the mounting hole 101. Therefore, there is no need to manufacture two limiting blocks 4 and then weld the limiting blocks 4 to the mounting hole 101, further saving the manufacturing cost.

[0029] Further, two limiting blocks 4 are arranged in the mounting hole 101. The two limiting blocks 4 are symmetrically arranged in the mounting hole 101 respectively, and one end of the shaft body 2 abuts against the two limiting blocks 4 simultaneously, thereby improving the strength of the limiting component and ensuring the use effect of the shaft body 2.

[0030] In addition, it should be supplemented that in this embodiment, the step 3 can be directly pulled out from the mounting hole 101, that is, the step 3 and the mounting hole 101 are an integral structure and there is no need to additionally process a step for welding with the mounting hole, which greatly reduces the production cost.

[0031] Further, the step 3 and the side plate 1 are of an integral structure, and the shaft body 2 and the step 3 are in interference fit, so there is no need to manufacture a step 3 and then weld it with the mounting hole 101, saving the material cost and the welding cost. And because of the interference fit between the step 3 and the shaft body 2, it is necessary to press the shaft body 2 into the step 3. At this time, one end of the shaft body 2 is axially positioned by the limiting block 4, thereby ensuring the connection effect between the shaft body 2 and the side plate 1.

[0032] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A shredder side plate step shaft structure, comprising a side plate (1) and a shaft body (2), wherein the side plate (1) is provided with a mounting hole (101) adapted to one end of the shaft body (2), characterized in that: A limiting assembly is provided in the mounting hole (101); a step (3) is provided on a side of the mounting hole (101) close to the shaft body (2); the step (3) is sleeve-shaped and is used for inserting one end of the shaft body (2); after the shaft body (2) is inserted into the mounting hole (101) from the step (3), one end of the shaft body (2) is axially positioned by the limiting assembly.

2. The shredder side plate step shaft structure according to claim 1, characterized in that: The limiting assembly comprises at least one limiting block (4), and the limiting block (4) is fixedly arranged on the inner wall of the mounting hole (101).

3. The shredder side plate step shaft structure according to claim 2, characterized in that: The limiting assembly comprises two limiting blocks (4), and the two limiting blocks (4) are symmetrically distributed on the inner wall of the mounting hole (101).

4. The shredder side plate step shaft structure according to claim 1 or 2, characterized in that: The step (3) is pulled out from the side plate (1), the step (3) and the side plate (1) are an integrated structure, and the shaft (2) and the step (3) are interference fit.

5. The side plate step shaft structure of a shredder as claimed in claim 1, 2 or 3, characterized in that: The shaft body (2) is a cylindrical structure.

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