Cover structure of a paper shredder

By designing a sliding plate and a blocking mechanism on the paper shredder, the problems of inconvenient cover plate removal and open paper inlet in the existing technology are solved, realizing convenient disassembly and assembly and paper inlet closure, improving the equipment's maintenance convenience and appearance.

CN224346027UActive Publication Date: 2026-06-12MAOXIN HARDWARE PROD SHENZHEN

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
MAOXIN HARDWARE PROD SHENZHEN
Filing Date
2025-06-19
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

The existing paper shredder requires the collection box to be pulled out and the casing to be disassembled from the inside during maintenance, which is inconvenient, and the open paper inlet makes it easy for dust or foreign objects to enter.

Method used

A cover plate structure was designed, comprising a sliding plate, a drive mechanism, a sealing mechanism, and a connecting plate. The sliding plate is driven to move by an electric push rod to achieve the closing and opening of the paper inlet. The cover plate is easily disassembled and assembled by the sealing mechanism, and the bolt connection and positioning rod are used for positioning to ensure the flat appearance of the equipment.

Benefits of technology

It enables convenient removal and installation of the cover plate and sealing of the paper inlet, preventing dust or foreign objects from entering, and improving the convenience of equipment maintenance and the neatness of its appearance.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224346027U_ABST
    Figure CN224346027U_ABST
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Abstract

The utility model belongs to the field of paper shredder especially, a kind of cover plate structure of paper shredder, when the maintenance of existing maintenance personnel, it needs to be extracted to collect box, then the shell is disassembled from inside, finally, cover plate is disassembled, it is more inconvenient, and paper inlet is in open state, idle time is easy to enter dust or other foreign matters, present and propose following scheme, including the cover plate main body of installation in the top of paper shredder shell, the surface of cover plate main body is equipped with paper inlet, the sliding plate that can close paper inlet is slidably connected in paper inlet, detection port is equipped in the bottom of paper inlet and sliding plate;Disassembling opening is opened in the both sides of cover plate main body, in the utility model, the smoothness of equipment appearance is ensured, and people are directly disassembled to cover plate, provide convenience for later maintenance, paper inlet can be closed when equipment is idle, avoid dust or other foreign matters to enter equipment inside.
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Description

Technical Field

[0001] This utility model relates to the field of paper shredder technology, and in particular to a cover plate structure for a paper shredder. Background Technology

[0002] A paper shredder is an office device used to destroy media such as paper, cards, and CDs into small pieces. Its primary purpose is to protect sensitive information from leakage, and it is widely used in government agencies, enterprises, financial institutions, and other places that need to process large amounts of confidential documents. By shredding documents into small, irreparable particles, paper shredders effectively prevent information from being obtained and misused by others, thus ensuring information security.

[0003] However, in the existing technology, in order to ensure the flatness of the equipment appearance, the bolts are usually set inside the equipment, while the circuit board and other structures are usually installed on the inner wall of the top of the cover plate. When maintenance personnel perform maintenance, they need to pull out the collection box, then disassemble the shell from the inside, and finally disassemble the cover plate, which is inconvenient. In addition, the paper inlet is in an open state, and dust or other foreign objects can easily enter when the equipment is not in use.

[0004] Therefore, we propose a cover plate structure for a paper shredder. Utility Model Content

[0005] The purpose of this utility model is to solve the problems of existing technology where maintenance personnel need to remove the collection box, disassemble the shell from the inside, and finally disassemble the cover plate when performing maintenance, which is inconvenient and the paper inlet is in an open state, making it easy for dust or other foreign objects to enter when idle. Therefore, a cover plate structure for a paper shredder is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A cover structure for a paper shredder, comprising:

[0008] The cover plate body installed on the top of the shredder housing has a paper inlet on its surface. A sliding plate that can close the paper inlet is slidably connected inside the paper inlet. Both the paper inlet and the sliding plate have detection ports at their bottoms.

[0009] The disassembly and assembly ports are provided on both sides of the main body of the cover plate;

[0010] A second connecting plate is fixedly disposed on the inner wall of the cover plate body, and a first connecting plate is fixedly disposed on the inner wall of the shredder housing. A bolt is provided on one side of the first connecting plate, and the bolt is threadedly connected to the second connecting plate.

[0011] A drive mechanism is disposed on the top inner wall of the cover plate body and is used to drive the slide plate to move;

[0012] A sealing mechanism is disposed on the inner wall of the cover plate body and is used to seal the disassembly port;

[0013] During disassembly, the sealing mechanism is pushed to expose the bolts for disassembling and assembling the cover plate body; after installation, the sealing mechanism is reset to seal the disassembly / assembly port.

[0014] In one possible design, the drive mechanism includes an electric push rod fixedly disposed on the inner wall of the top of the cover plate body, and a fixing plate is fixedly connected to one end of the output shaft of the electric push rod, and the fixing plate is fixedly connected to the slide plate.

[0015] In one possible design, the sealing mechanism includes a mounting plate fixedly disposed on the inner wall of the cover plate body. A slider is slidably connected to the outer wall of the mounting plate. Two sliding rods slide through one side of the slider. A baffle for sealing the disassembly port is fixedly connected to one end of each sliding rod. A spring is sleeved on the outer wall of the sliding rod. The two ends of the spring abut against the baffle and the slider respectively through spring seats. One end of the sliding rod passes through the slider and is threadedly connected to a nut.

[0016] In one possible design, a receiving tube is fixedly connected to one side of the slide plate, and an infrared emitting tube is fixedly installed on the top inner wall of the cover plate body. The infrared emitting tube and the receiving tube are respectively located on one side of the two detection ports.

[0017] In one possible design, it also includes a plurality of positioning rods fixedly disposed on the inner wall of the cover plate body, and a plurality of positioning tubes fixedly disposed on the inner wall of the shredder housing, wherein the positioning rods and the positioning tubes are used in conjunction.

[0018] In one possible design, multiple circuit board mounting posts are fixedly installed on the top inner wall of the cover plate body, and a power cord mounting port is opened on one side of the cover plate body.

[0019] In this application, when in use, the electric push rod is activated to move the slide plate, exposing the paper inlet to facilitate the paper to enter. Then, an appropriate amount of paper is placed into the paper inlet. After the receiving tube no longer receives the light emitted by the infrared emitting tube, the blade inside the device is activated to rotate, thereby shredding the paper.

[0020] During disassembly, push the baffle into the cover body and move it upwards, causing the slider to move upwards along the mounting plate, exposing the bolts, the first connecting plate, and the second connecting plate. At this point, the baffle and the disassembly / removal port are not completely misaligned, facilitating subsequent operations. Use tools to remove the bolts to release the fixation on the cover body, and then directly remove the cover body. During installation, align the positioning rod and positioning tube, place the cover body on the top of the equipment, and then use bolts to fix the first connecting plate and the second connecting plate. Then slide the baffle down. When the baffle and the disassembly / removal port are aligned, the spring pushes the baffle into the disassembly / removal port to seal it, ensuring a flat appearance for the equipment.

[0021] Beneficial effects: In this utility model, the cover plate structure of the paper shredder, through the setting of baffles, disassembly ports and first connecting plates, ensures the flatness of the equipment appearance and makes it convenient for people to directly disassemble and assemble the cover plate, providing convenience for later maintenance.

[0022] In this utility model, the cover structure of the paper shredder, through the setting of a sliding plate, paper inlet and electric push rod, can seal the paper inlet when the equipment is not in use, so as to prevent dust or other foreign objects from entering the equipment. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the cover plate structure of a paper shredder proposed in this utility model;

[0024] Figure 2 This is a cross-sectional view of the cover plate structure of a paper shredder proposed in this utility model.

[0025] Figure 3 This is a partially exploded structural diagram of the cover plate structure of a paper shredder proposed in this utility model;

[0026] Figure 4 This is a schematic diagram of the misaligned baffle structure of the cover plate of a paper shredder proposed in this utility model.

[0027] In the diagram: 1. Cover plate body; 2. Mounting column; 3. Mounting port; 4. Paper inlet; 5. Detection port; 6. Slide plate; 7. Electric push rod; 8. Fixing plate; 9. Infrared emitting tube; 10. Receiving tube; 11. Positioning rod; 12. Positioning tube; 13. First connecting plate; 14. Second connecting plate; 15. Bolt; 16. Baffle; 17. Slide rod; 18. Spring; 19. Nut; 20. Mounting plate; 21. Slider; 22. Disassembly / removal port. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] In one embodiment: Refer to Figures 1-4 A cover plate structure includes a cover plate body 1, which is initially positioned by a positioning rod 11 that engages with a positioning tube 12 on the inner wall of the shredder housing. A paper inlet 4 is located at the top of the cover plate body 1, and a sliding plate 6 is slidably connected to the inner wall of the paper inlet 4. An electric push rod 7 is fixed to the inner wall of the top of the cover plate body 1, and the output end of the electric push rod 7 is connected to a fixing plate 8, which is fixed to the sliding plate 6. When the electric push rod 7 extends or retracts, it drives the sliding plate 6 to slide along the inner wall of the paper inlet 4, thus opening or closing the paper inlet 4.

[0030] A detection port 5 is provided at the bottom of the paper inlet 4, corresponding to the bottom of the slide plate 6. An infrared emitting tube 9 is fixed to the inner top wall of the cover plate body 1, and a receiving tube 10 is fixed to the side of the slide plate 6. When the slide plate 6 moves to the open state of the paper inlet 4, the infrared emitting tube 9 and the receiving tube 10 are respectively aligned with the two detection ports 5. When paper enters the paper inlet 4 and blocks the light, the signal of the receiving tube 10 is interrupted, triggering the shredder blades to start.

[0031] The cover plate body 1 has disassembly and assembly openings 22 on both sides, and a mounting plate 20 is fixed to its inner wall. A slider 21 is slidably connected to the outer wall of the mounting plate 20, and the slider 21 passes through two sliding rods 17. One end of the sliding rod 17 is fixed to a baffle 16, and the other end passes through the slider 21 and is threaded to a nut 19. The nut 19 is designed to facilitate the disassembly and replacement of the spring 18, preventing the spring 18 from losing its elasticity due to long-term use. A spring 18 is sleeved on the outer wall of the sliding rod 17, and the two ends of the spring 18 abut against the baffle 16 and the slider 21, respectively. When the baffle 16 is pressed into the cover plate body 1 by external force, the spring 18 is compressed and stores energy; after the external force is removed, the spring 18 pushes the baffle 16 back to the disassembly and assembly opening 22 to achieve sealing.

[0032] This application can be used in the field of paper shredders, or in other fields applicable to this application.

[0033] In another embodiment: a cover structure for a paper shredder, which is applied in the field of paper shredders;

[0034] In another aspect of this embodiment, a second connecting plate 14 is fixed to the inner wall of the cover plate body 1, and a first connecting plate 13 is fixed to the inner wall of the shredder housing. Bolts 15 pass through the first connecting plate 13 and the second connecting plate 14 in sequence to achieve threaded locking. When disassembling the cover plate body 1, the baffle 16 is pressed inward to expose the disassembly port 22. After removing the bolts 15 with a tool, the cover plate body 1 is removed. During installation, the positioning rod 11 is inserted into the positioning tube 12 to complete the pre-positioning. After tightening the bolts 15, the baffle 16 is released, and the spring 18 pushes the baffle 16 to automatically seal the disassembly port 22.

[0035] The cover plate body 1 has multiple circuit board mounting posts 2 on its top inner wall and a power cord mounting port 3 on its side. The circuit board (not shown) is fixed on the mounting posts 2, and the power cord is connected through the mounting port 3.

[0036] However, as is well known to those skilled in the art, the working principles and wiring methods of the electric push rod 7, the infrared emitting tube 9, and the receiving tube 10 are commonplace and are all conventional means or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0037] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cover plate structure for a paper shredder, characterized in that, include: The cover plate body (1) installed on the top of the shredder housing has a paper inlet (4) on its surface. A sliding plate (6) that can close the paper inlet (4) is slidably connected inside the paper inlet (4). Both the paper inlet (4) and the sliding plate (6) have detection ports (5) at their bottoms. The disassembly ports (22) are opened on both sides of the cover plate body (1); A second connecting plate (14) is fixedly disposed on the inner wall of the cover plate body (1), and a first connecting plate (13) is fixedly disposed on the inner wall of the shredder housing. A bolt (15) is provided on one side of the first connecting plate (13), and the bolt (15) is threadedly connected to the second connecting plate (14). A drive mechanism is provided on the top inner wall of the cover plate body (1) for driving the slide plate (6) to move; A sealing mechanism is provided on the inner wall of the cover plate body (1) for sealing the disassembly port (22); During disassembly, the sealing mechanism is pushed to expose the bolt (15) for disassembling and assembling the cover plate body (1); after installation, the sealing mechanism is reset to seal the disassembly / assembly port (22).

2. The cover plate structure of a paper shredder according to claim 1, characterized in that, The driving mechanism includes an electric push rod (7) fixedly installed on the inner wall of the top of the cover plate body (1). One end of the output shaft of the electric push rod (7) is fixedly connected to a fixing plate (8), and the fixing plate (8) is fixedly connected to the slide plate (6).

3. The cover plate structure of a paper shredder according to claim 2, characterized in that, The sealing mechanism includes a mounting plate (20) fixedly installed on the inner wall of the cover plate body (1). A slider (21) is slidably connected to the outer wall of the mounting plate (20). Two sliding rods (17) slide through one side of the slider (21). A baffle (16) for sealing the disassembly port (22) is fixedly connected to one end of the sliding rod (17). A spring (18) is sleeved on the outer wall of the sliding rod (17). The two ends of the spring (18) abut against the baffle (16) and the slider (21) respectively through spring seats. One end of the sliding rod (17) passes through the slider (21) and is threadedly connected to a nut (19).

4. The cover plate structure of a paper shredder according to claim 3, characterized in that, A receiving tube (10) is fixedly connected to one side of the slide plate (6), and an infrared emitting tube (9) is fixedly installed on the top inner wall of the cover plate body (1). The infrared emitting tube (9) and the receiving tube (10) are respectively located on one side of the two detection ports (5).

5. The cover plate structure of a paper shredder according to claim 4, characterized in that, It also includes a plurality of positioning rods (11) fixedly disposed on the inner wall of the cover plate body (1) and a plurality of positioning tubes (12) fixedly disposed on the inner wall of the shredder housing, wherein the positioning rods (11) and the positioning tubes (12) are used in conjunction.

6. The cover plate structure of a paper shredder according to claim 5, characterized in that, The top inner wall of the cover plate body (1) is fixedly provided with multiple circuit board mounting posts (2), and a power cord mounting port (3) is opened on one side of the cover plate body (1).