Paper shredder

Abstract

The utility model provides a paper shredder which comprises a crushing roller assembly, a first mounting frame, a driving assembly and a bracket, the crushing roller assembly comprises a first crushing roller and a second crushing roller which are arranged in parallel at an interval, and a rotating shaft is arranged on the first crushing roller or the second crushing roller in a penetrating manner; the first mounting frame is arranged on one side of the crushing roller assembly; the driving assembly comprises a motor, a first gear, a reduction gear set and a second gear, and the motor is installed on the first installation frame and used for providing power; the first gear is connected with a driving shaft of the motor; the reduction gear set is connected to the first installation frame through an installation shaft and engaged with the first gear. The second gear is mounted on the rotating shaft and meshed with the reduction gear set; and the brackets are sheet-shaped, respectively sleeve one ends of the rotating shaft, the driving shaft and the mounting shaft, and are fixed through check rings. According to the paper shredder provided by the utility model, the bracket is arranged and is sleeved at one end of the rotating shaft, one end of the driving shaft and one end of the mounting shaft, so that off tracking of gears is avoided.

Description

Technical Field

[0001] This application relates to the field of paper shredding technology, specifically to a paper shredder. Background Technology

[0002] A paper shredder is an office device that can prevent the leakage of document contents. A large amount of waste paper is generated during the office process. This waste paper records the company's business content, and some even involve internal company secrets. Therefore, after use, the waste paper should be shredded to cut the paper into fragments or strips, thereby achieving the paper shredding process. Shredded documents can prevent the leakage of confidential information.

[0003] Traditional paper shredders typically use a gear drive structure to drive the cutter shaft to shred paper. However, the end of the gear drive structure away from the cutter shaft is usually not fixed, which may cause the gear to run off-center. Utility Model Content

[0004] To address the aforementioned technical problems, this application provides a paper shredder that solves the problem of gear misalignment in the gear drive structure of existing paper shredders.

[0005] This application provides a paper shredder, comprising:

[0006] The crushing roller assembly includes a first crushing roller and a second crushing roller arranged parallel to each other at intervals, and a rotating shaft passes through the first crushing roller or the second crushing roller.

[0007] The first mounting bracket is located on one side of the crushing roller assembly;

[0008] Driver components, including:

[0009] The motor, mounted on the first mounting bracket, is used to provide power;

[0010] The first gear is connected to the drive shaft of the motor;

[0011] The reduction gear set is connected to the first mounting bracket via a mounting shaft and meshes with the first gear;

[0012] The second gear is mounted on the rotating shaft and meshes with the reduction gear set;

[0013] The bracket, in the form of a sheet, is respectively fitted onto one end of the rotating shaft, the drive shaft, and the mounting shaft, and is fixed by a retaining ring.

[0014] In some embodiments, the bracket is triangular.

[0015] In some embodiments, the reduction gear set is a double gear set, which includes a large gear and a small gear. The large gear meshes with a first gear, and the small gear meshes with a second gear.

[0016] In some embodiments, the shredder further includes a housing and a second mounting bracket, the housing including an upper shell and a lower shell detachably connected to the upper shell, the second mounting bracket being mounted on the other side of the shredding roller assembly, and shock-absorbing pads being provided at the bottom of the first mounting bracket and the second mounting bracket.

[0017] In some embodiments, the shredder further includes a paper guiding mechanism, including an upper paper guide frame and a lower paper guide frame, with the shredding roller assembly disposed within the space enclosed by the upper and lower paper guide frames, and the upper paper guide frame having a plurality of shock-absorbing pads.

[0018] The beneficial effects of this application are as follows: This utility model provides a paper shredder, which avoids gear misalignment by setting a bracket that is fitted onto one end of the rotating shaft, drive shaft and mounting shaft, and the bracket can also reduce noise to a certain extent. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of the paper shredder of this application from one perspective;

[0021] Figure 2 for Figure 1 The diagram shows the exploded structure of a paper shredder.

[0022] Figure 3 for Figure 1 The diagram shows a partial structural schematic of a paper shredder. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other alternative implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] Please refer to the reference. Figures 1-3 , Figure 1 This is a schematic diagram of the structure of an embodiment of the paper shredder of this application from one perspective; Figure 2 for Figure 1 The diagram shows the exploded structure of a paper shredder. Figure 3 for Figure 1 The diagram shows a partial structural schematic of the paper shredder. The paper shredder of this embodiment includes:

[0025] The crushing roller assembly includes a first crushing roller (not shown) and a second crushing roller (not shown) arranged parallel to each other at intervals, and a rotating shaft 13 passes through the first crushing roller or the second crushing roller;

[0026] The first mounting bracket 21 is located on one side of the crushing roller assembly;

[0027] Driver components, including:

[0028] Motor 22, mounted on the first mounting bracket 21, is used to provide power;

[0029] The first gear 23 is connected to the drive shaft 221 of the motor 22;

[0030] The reduction gear set 24 is connected to the first mounting bracket 21 via the mounting shaft 241 and meshes with the first gear 23;

[0031] The second gear 25 is mounted on the rotating shaft 13 and meshes with the reduction gear set 24.

[0032] The bracket 30, in the form of a plate, is respectively fitted onto one end of the rotating shaft 13, the drive shaft 221, and the mounting shaft 241, and is fixed by the retaining ring 28. With this arrangement, the first gear 23, the second gear 25, and the reduction gear set 24 can be positioned by only one bracket 30, avoiding deviation. In addition, gears generally have machining errors, which can lead to increased friction. Connecting them with the bracket 30 can offset the frictional stress during movement, thereby reducing noise to a certain extent.

[0033] In some embodiments, the bracket 30 is triangular. The three vertices of the bracket 30 correspond to the rotation shaft 13, the drive shaft 221, and the mounting shaft 241. The triangular arrangement ensures the stability of the bracket 30.

[0034] In some embodiments, the reduction gear set 24 is a double gear, comprising a large gear and a small gear. The large gear meshes with the first gear 23, and the small gear meshes with the second gear 25. It should be noted that the shredder also includes a third gear (not shown) and a fourth gear (not shown) meshing with the third gear. The third and fourth gears correspond to the first and second shredding rollers, respectively. The rotating shaft 13 is polygonal, allowing the third and fourth gears to rotate together with their corresponding shafts.

[0035] In this embodiment, the motor 22 drives the first gear 23 to rotate. The first gear 23 meshes with the large gear of the double gear, driving the double gear to rotate and achieving deceleration. The small gear rotates coaxially with the large gear and drives the second gear 25 to rotate. Since the rotating shaft 13 is polygonal, the second gear 25 rotates synchronously with the third gear and drives the fourth gear to rotate, thereby ultimately realizing the rotation of the shredding roller assembly and thus shredding the paper.

[0036] In some embodiments, the paper shredder further includes a housing 41 and a second mounting bracket 42. The housing 41 includes an upper shell 411 and a lower shell 412 detachably connected to the upper shell 411. The second mounting bracket 42 is mounted on the other side of the shredding roller assembly. The bottom of the first mounting bracket 21 and the second mounting bracket 42 are provided with shock-absorbing pads 43.

[0037] In some embodiments, the paper shredder further includes a paper guiding mechanism, including an upper paper guide frame 61 and a lower paper guide frame 62, with the shredding roller assembly disposed within the space enclosed by the upper paper guide frame 61 and the lower paper guide frame 62, and the upper paper guide frame 61 having a plurality of shock-absorbing pads 43.

[0038] In some embodiments, the paper shredder also includes a trash can 50 disposed at the lower part of the housing 41 for collecting shredded paper, and the trash can 50 is provided with a viewing window 51.

[0039] The beneficial effects of this application are as follows: This utility model provides a paper shredder, which avoids gear misalignment by setting a bracket that is fitted onto one end of the rotating shaft, drive shaft and mounting shaft, and the bracket can also reduce noise to a certain extent.

[0040] Finally, it should be noted that if any directional indication (such as up, down, left, right, front, back, etc.) is involved in the embodiments of this application, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0041] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0042] The above are merely embodiments of this application and do not limit the scope of this patent application. Any equivalent structural or procedural changes made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. A paper shredder, characterized in that, include: The crushing roller assembly includes a first crushing roller and a second crushing roller arranged parallel to each other at intervals, and a rotating shaft passes through the first crushing roller or the second crushing roller. The first mounting bracket is located on one side of the crushing roller assembly; Driver components, including: An electric motor, mounted on the first mounting bracket, is used to provide power; The first gear is connected to the drive shaft of the motor; The reduction gear set is connected to the first mounting bracket via a mounting shaft and meshes with the first gear; The second gear is mounted on the rotating shaft and meshes with the reduction gear set; The bracket, in the form of a sheet, is respectively fitted onto one end of the rotating shaft, the drive shaft, and the mounting shaft, and is fixed by a retaining ring.

2. The paper shredder according to claim 1, characterized in that, The bracket is triangular in shape.

3. The paper shredder according to claim 2, characterized in that, The reduction gear set is a double gear set, which includes a large gear and a small gear. The large gear meshes with the first gear, and the small gear meshes with the second gear.

4. The paper shredder according to claim 3, characterized in that, The paper shredder also includes a housing and a second mounting frame. The housing includes an upper shell and a lower shell detachably connected to the upper shell. The second mounting frame is mounted on the other side of the shredding roller assembly. The bottom of the first mounting frame and the second mounting frame are provided with shock-absorbing pads.

5. The paper shredder according to claim 4, characterized in that, The paper shredder also includes a paper guiding mechanism, including an upper paper guide frame and a lower paper guide frame. The shredding roller assembly is located within the space enclosed by the upper paper guide frame and the lower paper guide frame. The upper paper guide frame is provided with multiple shock-absorbing pads.

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