A paper shredder

Abstract

This application discloses a paper shredder, including a housing. A paper feeding mechanism is provided within the housing. The paper feeding mechanism includes a paper support plate, a paper feeding assembly, and a guide plate. Both the paper feeding assembly and the guide plate are mounted on the paper support plate. A guide slope is provided on the paper support plate. The paper feeding assembly is located between the guide slope and the guide plate. The guide slope and the paper support plate are integrally formed. This integral structure changes the traditional separate structure, integrating the guide slope and the paper support plate together, reducing the number of parts and assembly steps, and improving assembly efficiency.

Description

Technical Field

[0001] This application relates to the field of office equipment technology, and more specifically to a paper shredder. Background Technology

[0002] A paper shredder is a common office appliance whose main function is to cut paper or other documents into small pieces to achieve the purpose of confidential and secure handling of sensitive information. A paper shredder typically consists of a set of rotating blades, a guide comb, and a drive motor. Paper is fed through the interlocking blades and is cut into many small pieces. For example, Chinese utility model patent CN223159374U discloses a paper shredder, including a housing and a paper feeding roller, a paper support plate, and a blade assembly all disposed within the housing. The housing has a paper guiding platform, the front end of which is connected to the blade assembly. The paper support plate is located behind the paper guiding platform, and its front end is located behind and below the paper feeding roller. A paper separating component is provided on the upper rear end of the paper guiding platform, which abuts against the bottom of the paper feeding roller. A downwardly recessed groove is located on the upper rear end of the paper guiding platform, and the paper separating component is partially located within the groove. A spring is abutting between the bottom wall of the groove and the paper separating component. A through hole is provided on the bottom wall of the groove. A connecting post is provided at the bottom of the paper separating component, which passes through the through hole. An anti-detachment component is connected to the lower end of the connecting post, protruding from the outer side wall of the connecting post. There is a gap between the anti-detachment component and the surface where the lower end of the through hole is located. In this technical solution, the paper tray is connected to the machine housing by a support spring and needs to be installed in conjunction with components such as the paper separating unit and the paper feeding roller. This solution requires the precise coordination of multiple independent components, which increases the complexity of production and assembly. Summary of the Invention

[0003] The technical problem to be solved by this application is to provide a paper shredder in which the paper guide slope and the paper tray are integrated into a single structure, which changes the traditional split structure and integrates the paper guide slope and the paper tray together, thereby reducing the number of parts and assembly steps and improving assembly efficiency.

[0004] This application provides a paper shredder, including a housing, and a paper feeding mechanism is provided inside the housing. The paper feeding mechanism includes a paper support plate, a paper feeding assembly, and a guide plate. The paper feeding assembly and the guide plate are both installed on the paper support plate. A paper guiding inclined surface is provided on the paper support plate. The paper feeding assembly is located between the paper guiding inclined surface and the guide plate. The paper guiding inclined surface and the paper support plate are integrally formed.

[0005] In this technical solution, the paper feeding mechanism is a key component of the paper shredder, used to smoothly guide paper into the shredding unit for shredding. The paper feeding mechanism mainly includes a paper tray, a paper feeding assembly, and a guide plate. The paper tray serves as the foundation for guiding the paper in, the paper feeding assembly agitates the paper to facilitate its entry into the shredder, and the guide plate guides the paper into the shredding unit. Both the paper feeding assembly and the guide plate are mounted on the paper tray, ensuring that all components of the paper feeding mechanism are interconnected and work closely together to complete the paper feeding function. By incorporating a guide ramp on the paper tray, and making the guide ramp and paper tray an integral part of the structure, the traditional separate structure is changed. Integrating the guide ramp and paper tray together reduces the number of components and assembly steps, improves assembly efficiency, and reduces costs. The integrated design of the paper guide ramp and the paper tray reduces assembly costs and minimizes product quality issues caused by assembly errors. This allows paper to slide more smoothly along the paper guide ramp when entering the shredder, reducing friction and resistance between the paper and components during feeding and lowering the probability of paper jams. The one-piece structure reduces connection points and clearances between components, reducing the risk of malfunctions caused by loose parts, wear, or loose assembly, and improving the working stability of the feeding mechanism. The paper feeding assembly is located between the paper guide ramp and the paper tray, allowing the paper to more accurately enter the subsequent shredding components after passing through the paper feeding assembly, ensuring the accuracy and smoothness of paper feeding and improving the shredding efficiency and quality of the shredder.

[0006] As an improvement, the paper feeding mechanism further includes a damping element. The paper tray has a mounting groove adapted to the damping element, and the damping element is installed within the mounting groove. In this technical solution, the damping element is installed within the mounting groove, forming an organic whole with the paper tray. The damping element and the paper feeding assembly cooperate to jointly control the speed of the paper feeding process. When the paper feeding assembly agitates the paper, it requires a certain amount of friction and speed control to ensure that the paper separates and enters the shredder stably. The damping element provides appropriate resistance, allowing the paper feeding assembly to agitate the paper more evenly, preventing slippage or paper jams due to excessive feeding speed, and improving paper feeding efficiency.

[0007] As an improvement, the mounting groove is located below the paper feed assembly, and the damping element is installed in the mounting groove and engages with the paper guide slope. In this technical solution, since the mounting groove is located below the paper feed assembly, the damping element can directly act on the paper being fed by the paper feed assembly. The damping element can provide appropriate resistance, control the paper's sliding speed, and improve the stability of the paper feeding mechanism.

[0008] As an improvement, the paper feeding assembly includes a paper feeding shaft and a paper feeding roller. The paper feeding roller is mounted on the paper feeding shaft, and the paper feeding shaft is mounted on the support plate. In this technical solution, the paper feeding assembly consists of a paper feeding shaft and a paper feeding roller. The paper feeding roller can rotate via the paper feeding shaft, and the friction generated by the rotation drives the paper into the shredder. The support plate serves as a support structure, providing a stable mounting base for the paper feeding shaft and ensuring that the paper feeding assembly can work in the correct position. The connection between the paper feeding shaft and the support plate further enhances the stability of the entire paper feeding assembly and is more conducive to the maintenance and replacement of the paper feeding assembly.

[0009] As an improvement, the mounting groove is provided with a recess adapted to the paper feed roller, and a gap is provided between the surface of the recess and the paper feed roller. In this technical solution, because there is a gap between the surface of the recess and the paper feed roller, no direct friction occurs between the damping element and the paper feed roller. When the paper passes through the paper feed roller, it can smoothly enter the subsequent paper shredding component through this gap. The paper can better cooperate with the damping element and the paper feed roller, improving the paper feeding efficiency.

[0010] As an improvement, an angle R is formed between the guide slope and the surface of the support plate, and the angle R is 150 degrees. In this technical solution, the guide slope and the support plate surface form an angle R, giving the guide slope a certain degree of inclination. The 150-degree angle makes the guide slope relatively gentle, providing a smoother guiding path for the paper, effectively reducing paper deviation or accumulation when entering the shredder, making the paper sliding on the guide slope more stable, reducing paper shaking and deviation during the sliding process, and improving the stability of paper feeding.

[0011] As an improvement, the paper feeding mechanism further includes a flap, which is rotatably mounted on the housing, with one end of the flap connected to one end of the tray. In this technical solution, the flap is a rotatable plate-like structure, forming a continuous channel between the flap and the tray. Paper can pass through this channel from the flap into the tray and then into the subsequent shredding unit, reducing the shaking and offset of the paper when entering the shredder and improving the paper feeding efficiency.

[0012] As an improvement, the tray plate is provided with a first mounting part adapted to the paper feed shaft, and the end of the paper feed shaft passes through the first mounting part to connect to the guide plate. In this technical solution, the design of the first mounting part allows the paper feed shaft to be stably installed on the tray plate, reducing loosening caused by vibration or impact during operation. The end of the paper feed shaft passes through the first mounting part and connects to the guide plate. This connection method not only fixes the position of the paper feed shaft, but also connects the tray plate and the guide plate together through the paper feed shaft, forming an integrated paper feeding mechanism, which improves assembly efficiency and the reliability of the paper feeding mechanism.

[0013] As an improvement, the guide plate is provided with a second mounting part adapted to the paper feed shaft, and the end of the paper feed shaft is connected to the second mounting part. In this technical solution, the second mounting part is provided on the guide plate, so that the end of the paper feed shaft can be stably connected to the guide plate, reducing loosening caused by vibration or impact during operation and improving the reliability of the entire paper feeding mechanism. The connection between the end of the paper feed shaft and the second mounting part makes the support plate, the paper feed shaft, and the guide plate form an integral structure, enhancing the structural stability of the entire paper feeding mechanism.

[0014] As an improvement, the feed plate is provided with at least two of the aforementioned paper guide ramps, which are distributed in parallel. In this technical solution, multiple paper guide ramps are provided on the feed plate, and these ramps are parallel to each other, forming part of the paper feeding mechanism. When the paper enters the shredder, it can slide evenly along the multiple parallel paper guide ramps, maintaining the stability of the paper during the feeding process, reducing paper jams caused by paper shaking or vibration, and improving paper feeding efficiency. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a paper shredder according to this application.

[0016] Figure 2 This is a cross-sectional structural diagram of a paper shredder according to this application.

[0017] Figure 3 For this application Figure 2 A magnified view of a portion of point A in the middle.

[0018] Figure 4 This is a three-dimensional structural diagram of the paper feeding mechanism in this application.

[0019] Figure 5 This is an exploded structural diagram of the paper feeding mechanism in this application.

[0020] The figure shows: 1. Housing; 2. Paper tray; 21. Paper guide slope; 22. Mounting groove; 221. Recess; 23. First mounting part; 3. Paper feed assembly; 31. Paper feed shaft; 32. Paper feed roller; 4. Paper guide; 41. Second mounting part; 5. Damping component; 6. Flip plate. Detailed Implementation

[0021] To better understand this application, various aspects of this application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely illustrative of exemplary embodiments of this application and are not intended to limit the scope of this application in any way. Throughout the specification, the same reference numerals refer to the same elements.

[0022] In the accompanying drawings, the thickness, size, and shape of the objects have been slightly exaggerated for illustrative purposes. The drawings are for illustrative purposes only and are not drawn to scale.

[0023] It should also be understood that the terms "comprising," "including," "having," "containing," and "including," when used in this specification, indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof. The terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (the specific types and constructions may be the same or different), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0024] Furthermore, it should be noted that the terms "installation," "setting," "equipped with," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components; they can refer to a direct installation on another component or the possible presence of another intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] like Figures 1 to 5As shown, this application discloses a paper shredder, including a housing 1. A paper feeding mechanism is provided inside the housing 1. The paper feeding mechanism includes a support plate 2, a paper-feeding assembly 3, and a guide plate 4. Both the paper-feeding assembly 3 and the guide plate 4 are mounted on the support plate 2. A guide slope 21 is provided on the support plate 2. The paper-feeding assembly 3 is located between the guide slope 21 and the guide plate 4. The guide slope 21 and the support plate 2 are integrally formed. The paper feeding mechanism is a key part of the paper shredder, used to smoothly guide paper into the shredding unit for shredding. The paper feeding mechanism mainly includes the support plate 2, the paper-feeding assembly 3, and the guide plate 4. The support plate 2 serves as the basis for guiding the paper in. The paper-feeding assembly 3 agitates the paper, allowing it to smoothly enter the shredder. The guide plate 4 guides the paper into the shredding unit. Since both the paper-feeding assembly 3 and the guide plate 4 are mounted on the support plate 2, the various components of the paper feeding mechanism are interconnected and closely cooperate to complete the paper feeding function. By providing a guide slope 21 on the support plate 2, and the guide slope 21 being integral with the support plate... Plate 2 is a one-piece molded structure, changing the traditional split structure. It integrates the paper guide slope 21 and the paper tray 2, reducing the number of parts and assembly steps, improving assembly efficiency, reducing assembly costs, and also reducing product quality problems caused by assembly errors. The integrated design of the paper guide slope 21 and the paper tray 2 allows the paper to slide more smoothly along the paper guide slope 21 when entering the shredder, reducing friction and resistance between the paper and the parts during the feeding process, reducing the probability of paper jams. The one-piece molded structure reduces the connection points and fit gaps between parts, reducing the risk of failure caused by loose parts, wear, or loose assembly, and improving the working stability of the paper feeding mechanism. The paper feeding assembly 3 is located between the paper guide slope 21 and the paper tray 4, so that after the paper feeding assembly 3 passes through the paper feeding assembly 3, it can more accurately enter the subsequent shredding parts along the paper guide slope 21 and the paper tray 4, ensuring the accuracy and smoothness of paper feeding, and improving the shredding efficiency and quality of the shredder.

[0026] More specifically, such as Figures 3 to 5 As shown, the paper feeding mechanism also includes a damping element 5. The paper tray 2 is provided with a mounting groove 22 that is adapted to the damping element 5. The damping element 5 is installed in the mounting groove 22, forming an organic whole with the paper tray 2. The damping element 5 and the paper feeding assembly 3 cooperate with each other to achieve speed control of the paper feeding process. When the paper feeding assembly 3 is feeding the paper, it needs a certain friction and speed control to ensure that the paper is separated and enters the shredder stably. The damping element 5 can provide appropriate resistance, so that the paper feeding assembly 3 can feed the paper more evenly, avoid the paper slipping or jamming due to the excessive paper feeding speed, and improve the paper feeding efficiency.

[0027] More specifically, such as Figures 2 to 5As shown, the mounting groove 22 is located below the paper feed assembly 3. The damping element 5 is installed in the mounting groove 22 and engages with the paper guide slope 21. Since the mounting groove 22 is located below the paper feed assembly 3, the damping element 5 can directly act on the paper being fed by the paper feed assembly 3. The damping element 5 can provide appropriate resistance, control the sliding speed of the paper, and improve the stability of the paper feeding mechanism.

[0028] More specifically, such as Figures 3 to 5 As shown, the paper feeding assembly 3 includes a paper feeding shaft 31 and a paper feeding roller 32. The paper feeding roller 32 is mounted on the paper feeding shaft 31, and the paper feeding shaft 31 is mounted on the support plate 2. The paper feeding assembly 3 consists of the paper feeding shaft 31 and the paper feeding roller 32. The paper feeding roller 32 can rotate through the paper feeding shaft 31. The friction generated by the rotation drives the paper into the shredder. The support plate 2 serves as a support structure, providing a stable mounting base for the paper feeding shaft 31 and ensuring that the paper feeding assembly 3 can work in the correct position. The connection between the paper feeding shaft 31 and the support plate 2 further enhances the stability of the entire paper feeding assembly 3 and is more conducive to the maintenance and replacement of the paper feeding assembly 3.

[0029] More specifically, such as Figures 3 to 5 As shown, the mounting groove 22 is provided with a recess 221 that is adapted to the paper feed roller 32. There is a gap between the surface of the recess 221 and the paper feed roller 32. Because there is a gap between the surface of the recess 221 and the paper feed roller 32, there will be no direct friction between the damping member 5 and the paper feed roller 32. When the paper passes through the paper feed roller 32, it can smoothly enter the subsequent paper shredding component through this gap. The paper can better cooperate with the damping member 5 and the paper feed roller 32, thereby improving the paper feeding efficiency.

[0030] More specifically, such as Figure 3 As shown, an angle R is formed between the guide slope 21 and the surface of the support plate 2. The angle R is 150 degrees. The guide slope 21 has a certain degree of inclination. The 150-degree angle makes the guide slope 21 relatively gentle, providing a gentler guiding path for the paper. This effectively reduces the paper's deviation or accumulation when entering the shredder, making the paper's sliding on the guide slope 21 more stable, reducing the shaking and deviation of the paper during the sliding process, and improving the stability of the paper feeding.

[0031] More specifically, such as Figures 2 to 5 As shown, the paper feeding mechanism also includes a flap 6, which is rotatably mounted on the housing 1. One end of the flap 6 is connected to one end of the tray 2. The flap 6 is a rotatable plate structure. A continuous channel is formed between the flap 6 and the tray 2. Paper can enter the tray 2 through this channel from the flap 6 and then enter the subsequent shredding component, reducing the shaking and deviation of the paper when entering the shredder and improving the paper feeding efficiency.

[0032] More specifically, such as Figure 4 and Figure 5 As shown, the tray 2 is provided with a first mounting part 23 adapted to the paper feed shaft 31. The end of the paper feed shaft 31 passes through the first mounting part 23 and connects to the guide plate 4. The design of the first mounting part 23 enables the paper feed shaft 31 to be stably installed on the tray 2, reducing loosening caused by vibration or impact during operation. The end of the paper feed shaft 31 passes through the first mounting part 23 and connects to the guide plate 4. This connection method not only fixes the position of the paper feed shaft 31, but also connects the tray 2 and the guide plate 4 together through the paper feed shaft 31, forming an integrated paper feeding mechanism, which improves assembly efficiency and the reliability of the paper feeding mechanism.

[0033] More specifically, such as Figure 4 and Figure 5 As shown, the guide plate 4 is provided with a second mounting part 41 adapted to the paper feed shaft 31. The end of the paper feed shaft 31 is connected to the second mounting part 41. The second mounting part 41 is provided on the guide plate 4 so that the end of the paper feed shaft 31 can be stably connected to the guide plate 4, reducing loosening caused by vibration or impact during operation and improving the reliability of the entire paper feeding mechanism. The connection between the end of the paper feed shaft 31 and the second mounting part 41 makes the paper support plate 2, the paper feed shaft 31 and the guide plate 4 form an integral structure, enhancing the structural stability of the entire paper feeding mechanism.

[0034] More specifically, such as Figure 4 and Figure 5 As shown, the paper tray 2 is provided with at least two paper guide slopes 21, which are arranged in parallel. Multiple paper guide slopes 21 are provided on the paper tray 2, and the multiple paper guide slopes 21 are parallel to each other, forming part of the paper feeding mechanism. When the paper enters the shredder, it can slide evenly along the multiple parallel paper guide slopes 21, maintaining the stability of the paper during the feeding process, reducing paper jams caused by paper shaking or vibration, and improving paper feeding efficiency.

[0035] This application is not limited to the above-described preferred embodiments. Anyone can derive other products in various forms under the guidance of this application. However, regardless of any changes made to their shape or structure, any technical solution that is the same as or similar to that of this application falls within the protection scope of this application.

Claims

1. A paper shredder, comprising a housing (1), wherein a paper feeding mechanism is provided within the housing (1), characterized in that, The paper feeding mechanism includes a paper tray (2), a paper feeding assembly (3), and a guide plate (4). The paper feeding assembly (3) and the guide plate (4) are both installed on the paper tray (2). The paper tray (2) is provided with a paper guiding slope (21). The paper feeding assembly (3) is located between the paper guiding slope (21) and the guide plate (4). The paper guiding slope (21) and the paper tray (2) are integrally formed.

2. A paper shredder according to claim 1, characterized in that, The paper feeding mechanism also includes a damping element (5), and the paper tray (2) is provided with a mounting groove (22) adapted to the damping element (5), and the damping element (5) is installed in the mounting groove (22).

3. A paper shredder according to claim 2, characterized in that, The mounting groove (22) is located below the paper feeding assembly (3), and the damping element (5) is installed in the mounting groove (22) and engages with the paper guide slope (21).

4. A paper shredder according to claim 2, characterized in that, The paper feeding assembly (3) includes a paper feeding shaft (31) and a paper feeding wheel (32), the paper feeding wheel (32) being mounted on the paper feeding shaft (31), and the paper feeding shaft (31) being mounted on the paper support plate (2).

5. A paper shredder according to claim 4, characterized in that, The mounting groove (22) is provided with a recess (221) adapted to the paper feed roller (32), and there is a gap between the surface of the recess (221) and the paper feed roller (32).

6. A paper shredder according to claim 1, characterized in that, An angle R is formed between the guide slope (21) and the surface of the support plate (2), and the angle R is 150 degrees.

7. A paper shredder according to claim 1, characterized in that, The paper feeding mechanism also includes a flip plate (6), which is rotatably mounted on the housing (1), and one end of the flip plate (6) is connected to one end of the paper tray (2).

8. A paper shredder according to claim 4, characterized in that, The paper tray (2) is provided with a first mounting part (23) adapted to the paper feed shaft (31), and the end of the paper feed shaft (31) passes through the first mounting part (23) and connects to the guide plate (4).

9. A paper shredder according to claim 8, characterized in that, The guide plate (4) is provided with a second mounting part (41) adapted to the paper feed shaft (31), and the end of the paper feed shaft (31) is connected to the second mounting part (41).

10. A paper shredder according to claim 1, characterized in that, The paper tray (2) is provided with at least two paper guide slopes (21), and the at least two paper guide slopes (21) are distributed in parallel.

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