Household paper shredder with double-edged blade structure

This household paper shredder, with its double-blade structure and paper shredder compression mechanism, solves the problem of small shredder capacity, and achieves automatic shredder compression, lubrication, and air purification, thus improving ease of use.

CN224057548UActive Publication Date: 2026-03-31BONSEN ELECTRONICS CO LTD
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Patent Information

Application Number
CN202520635551.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-07
Publication Date
2026-03-31
Estimated Expiration
2035-04-07

AI Technical Summary

Technical Problem

Existing household paper shredders have a small internal shredder capacity and cannot compress the shredder, resulting in frequent and cumbersome shredder disposal.

Method used

It adopts a double-blade structure and a paper scrap compression structure. The left and right clamps are driven by a bidirectional screw to squeeze the paper scraps, thereby achieving paper scrap compression. It is equipped with a micro pump and nozzle for automatic lubrication, and uses a micro air pump and filter plate for air purification.

Benefits of technology

It achieves automatic compression of debris, reduces processing frequency, keeps blades sharp, prevents cuts, purifies air, and improves ease of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a household paper shredder with a double-edged blade structure, and relates to the technical field of paper shredding equipment, the household paper shredder comprises a box body, the top end of the box body is fixedly connected with a paper inlet, and the household paper shredder with the double-edged blade structure is provided with a left clamping plate, a right clamping plate and a bidirectional screw rod. The long blade on the double-blade cutter set firstly tears paper, then chippings downwards pass through the paper guide piece and orderly fall into the paper shredding box, and the chippings are stacked at the tops of the hollow plate and the rectangular plate. After the equipment is used for a period of time, the motor can be started to drive the bidirectional lead screw to rotate; the bidirectional lead screw rotates to drive the left clamping plate and the right clamping plate on the periphery to move close to each other, chippings accumulated in the left clamping plate and the right clamping plate are squeezed, air in chipping holes is rapidly squeezed out, the paper density is improved, the chipping size is reduced, meanwhile, the chipping treatment frequency is reduced, and the internal chipping capacity is improved; the problem that the device cannot compress chippings is solved.
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Description

Technical Field

[0001] This utility model relates to the field of paper shredding equipment technology, specifically a household paper shredder with a double-edged blade structure. Background Technology

[0002] Paper shredders are devices that use two sets of interleaved rotating blades to cut paper into small pieces. They are mainly used for document destruction and processing and are suitable for most businesses and homes. However, most household paper shredders currently have a small internal shredder capacity and cannot compress the shredder. They need to be removed frequently to process the shredder, which is a cumbersome process and too frequent, making them inconvenient for daily use.

[0003] Now, a novel household paper shredder with a double-bladed structure is proposed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a household paper shredder with a double-blade structure to solve the problem of the inability to compress shreds mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a household paper shredder with a double-edged blade structure, comprising a housing, a paper inlet fixedly connected to the top of the housing, a door fixedly connected to the top of the front end of the housing, a controller fixedly connected to the bottom of the front end of the housing, two sets of double-edged blades movably connected to the middle position inside the housing, multiple sets of paper guides provided at the bottom end of the double-edged blades, and a paper scrap compression structure fixedly connected to the bottom end of the housing.

[0006] The paper scrap compression structure includes a shredder, which is fixedly connected to the bottom of the box body. A base plate is fixedly connected to the bottom of the shredder. A motor is fixedly connected to the bottom of the right side of the box body. A left clamping plate is movably connected to the left side of the top of the base plate. A right clamping plate is movably connected to the right side of the top of the base plate. A hollow plate is fixedly connected to the right side of the bottom of the left clamping plate. A rectangular plate is fixedly connected to the left side of the bottom of the right clamping plate. Guide rails are fixedly connected to the front and rear ends of the bottom of the base plate. A bidirectional lead screw is provided in the middle of the bottom of the base plate.

[0007] As a further technical solution of this utility model, the double-edged blade assembly moves in opposite directions, the motor passes through the housing and is fixedly connected to the bidirectional lead screw, and there is a distance between the bottom end of the hollow plate and the rectangular plate and the top end of the bidirectional lead screw.

[0008] As a further technical solution of this utility model, the internal shape and size of the hollow plate are consistent with the external shape and size of the rectangular plate, and the rectangular plate can move left and right along the interior of the hollow plate.

[0009] As a further technical solution of this utility model, the bottom of the left clamping plate and the right clamping plate are sleeved around the periphery of the left clamping plate and the right clamping plate, and the left clamping plate and the right clamping plate can move left and right along the periphery of the guide rail and the bidirectional lead screw.

[0010] As a further technical solution of this utility model, an oil inlet is fixedly connected to the rear end of the paper inlet, an oil tank is fixedly connected to the top of the box body, a micro pump is fixedly connected inside the oil tank, an oil outlet pipe is fixedly connected to the right side of the micro pump, and multiple nozzles are fixedly connected to the front end of the oil outlet pipe.

[0011] As a further technical solution of this utility model, the oil inlet is connected to the inside of the oil tank, the micro pump is connected to the inside of the oil outlet pipe, and the nozzles are arranged at equal intervals.

[0012] As a further technical solution of this utility model, a side box is fixedly connected to the top right side of the box body, a micro air pump is fixedly connected inside the side box, an air inlet is fixedly connected to the left side of the micro air pump, an air outlet is fixedly connected to the front end of the micro air pump, and a filter plate is fixedly connected inside the side box.

[0013] As a further technical solution of this utility model, the air inlet penetrates through the box and extends into the interior of the box, and the air inlet and air outlet are connected to the interior of the micro air pump.

[0014] Compared with the prior art, the beneficial effects of this utility model are: this household paper shredder with a double-blade structure not only realizes the function of shredding, but also realizes the function of automatic lubrication and air purification;

[0015] (1) By setting up a left clamping plate, a right clamping plate and a bidirectional screw, when in use, the paper is put into the paper inlet and then enters the gap between the two sets of double-edged blades. As the two sets of double-edged blades move in opposite directions, the long blades on the double-edged blades tear the paper first. After the torn paper segments lose the surrounding support, they immediately come into contact with the short blades and tear them a second time. The two sets of blades improve the crushing effect. Then the debris falls down through the paper guide and falls into the paper shredder in an orderly manner, accumulating on the top of the hollow plate and the rectangular plate. After the equipment has been used for a period of time, the motor can be started. The motor drives the bidirectional screw to rotate. The rotation of the bidirectional screw drives the outer left clamping plate and the right clamping plate to move closer to each other, squeezing the debris accumulated inside the left clamping plate and the right clamping plate, and quickly squeezing out the air in the debris pores, which increases the paper density, reduces the volume of debris, reduces the frequency of debris processing, and increases the internal debris capacity, thus realizing the debris compression function.

[0016] (2) By setting up an oil outlet pipe and a nozzle, in order to maintain the sharpness of the surface of the double-edged blade assembly and improve the cutting efficiency, the micro pump can be turned on periodically to draw lubricating oil from the oil tank, and then the lubricating oil is transferred to the oil outlet pipe and then discharged downward through the nozzle. At the same time, the double-edged blade assembly is started to rotate, which can ensure that the surface of the double-edged blade assembly is covered with lubricating oil and prevent the cuts that may be caused by manual oiling, thus realizing the automatic lubrication function.

[0017] (3) By setting up a micro air pump and filter plate, when using it, a large amount of fine paper scraps and dust are easily generated when cutting and crushing paper. After release, they can easily cause harm to human health and the surrounding environment. The micro air pump can be started after crushing and cutting to draw in the internal gas through the air inlet and then discharge it downward through the air outlet. The particulate matter and fine paper scraps are filtered through the filter plate, and then the clean gas is discharged to the outside, thus realizing the air purification function. Attached Figure Description

[0018] Figure 1 This is a front view structural diagram of the present utility model;

[0019] Figure 2 This is an enlarged front cross-sectional view of the present invention.

[0020] Figure 3 This is an enlarged top view cross-sectional diagram of the base plate of this utility model;

[0021] Figure 4 This is a top view enlarged cross-sectional schematic diagram of the bidirectional lead screw of this utility model.

[0022] In the diagram: 1. Box body; 2. Paper inlet; 3. Box door; 4. Controller; 5. Double-edged blade assembly; 6. Paper guide plate; 7. Shredded paper box; 8. Base plate; 9. Motor; 10. Left clamping plate; 11. Right clamping plate; 12. Hollow plate; 13. Rectangular plate; 14. Guide rail; 15. Two-way lead screw; 16. Oil inlet; 17. Oil tank; 18. Micro pump; 19. Oil outlet pipe; 20. Nozzle; 21. Side box; 22. Micro air pump; 23. Air inlet; 24. Air outlet; 25. Filter plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4An embodiment of this utility model is provided: a household paper shredder with a double-edged blade structure, including a housing 1, a paper inlet 2 fixedly connected to the top of the housing 1, a door 3 fixedly connected to the top of the front end of the housing 1, a controller 4 fixedly connected to the bottom of the front end of the housing 1, two sets of double-edged blades 5 movably connected to the middle position inside the housing 1, multiple sets of paper guides 6 provided at the bottom end of the double-edged blades 5, and a paper shredder compression structure fixedly connected to the bottom end inside the housing 1.

[0025] Please see Figure 1-4 A household paper shredder with a double-blade structure also includes a paper shredding structure. The paper shredding structure includes a shredding box 7, which is fixedly connected to the bottom of the interior of a housing 1. A base plate 8 is fixedly connected to the bottom of the interior of the shredding box 7. A motor 9 is fixedly connected to the bottom of the right side of the housing 1. A left clamping plate 10 is movably connected to the left side of the top of the base plate 8, and a right clamping plate 11 is movably connected to the right side of the top of the base plate 8. A hollow plate 12 is fixedly connected to the right side of the bottom of the left clamping plate 10, and a rectangular plate 13 is fixedly connected to the left side of the bottom of the right clamping plate 11. Guide rails 14 are fixedly connected to the front and rear ends of the interior of the base plate 8. A bidirectional lead screw 15 is set in the middle position. The double-edged blade assembly 5 moves in opposite directions. The motor 9 passes through the housing 1 and is fixedly connected to the bidirectional lead screw 15. There is a distance between the bottom end of the hollow plate 12 and the rectangular plate 13 and the top end of the bidirectional lead screw 15. The internal shape and size of the hollow plate 12 are consistent with the external shape and size of the rectangular plate 13. The rectangular plate 13 can move left and right along the inside of the hollow plate 12. The bottom of the left clamping plate 10 and the right clamping plate 11 are sleeved on the outer periphery of the left clamping plate 10 and the right clamping plate 11. The left clamping plate 10 and the right clamping plate 11 can move left and right along the guide rail 14 and the outer periphery of the bidirectional lead screw 15 to increase the internal volume.

[0026] Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, during use, paper is fed into the paper inlet 2 and then enters the gap between the two sets of double-edged blades 5. Because the two sets of double-edged blades 5 move in opposite directions, the long blades on the double-edged blades 5 first tear the paper. After the torn paper segments lose their surrounding support, they immediately come into contact with the short blades and are torn a second time. The two sets of blades improve the crushing effect. Then the debris falls downward through the paper guide plate 6 and falls orderly into the shredder 7, accumulating on top of the hollow plate 12 and the rectangular plate 13. After the equipment has been used for a period of time, the motor 9 can be started. The motor 9 drives the bidirectional lead screw 15 to rotate. The rotation of the bidirectional lead screw 15 causes the outer left clamping plate 10 and right clamping plate 11 to move closer to each other, squeezing the debris accumulated inside the left clamping plate 10 and right clamping plate 11, quickly squeezing out the air in the debris pores, increasing the paper density, reducing the volume of debris, reducing the frequency of debris processing, increasing the internal debris capacity, and making it convenient to use.

[0027] An oil inlet 16 is fixedly connected to the rear end of the paper inlet 2. An oil tank 17 is fixedly connected to the top inside the housing 1. A micro pump 18 is fixedly connected inside the oil tank 17. An oil outlet pipe 19 is fixedly connected to the right side of the micro pump 18. Multiple nozzles 20 are fixedly connected to the front end of the oil outlet pipe 19. The oil inlet 16 is connected to the inside of the oil tank 17. The micro pump 18 is connected to the inside of the oil outlet pipe 19. The nozzles 20 are arranged at equal intervals for easy maintenance.

[0028] Specifically, such as Figure 1 and Figure 2 As shown, in order to maintain the sharpness of the surface of the double-edged blade assembly 5 and improve the cutting efficiency, the micro pump 18 can be turned on periodically to draw lubricating oil from the oil tank 17 and then deliver the lubricating oil to the oil outlet pipe 19, and then discharge it downwards through the nozzle 20. At the same time, the double-edged blade assembly 5 is started to rotate, which can ensure that the surface of the double-edged blade assembly 5 is covered with lubricating oil, and also prevent cuts that may be caused by manual oiling, and facilitate internal maintenance.

[0029] A side box 21 is fixedly connected to the top right side of the box 1. A miniature air pump 22 is fixedly connected inside the side box 21. An air inlet 23 is fixedly connected to the left side of the miniature air pump 22. An air outlet 24 is fixedly connected to the front end of the miniature air pump 22. A filter plate 25 is fixedly connected inside the side box 21. The air inlet 23 penetrates the box 1 and extends into the interior of the box 1. The air inlet 23 and the air outlet 24 are connected to the interior of the miniature air pump 22 to purify the air.

[0030] Specifically, such as Figure 1 and Figure 2 As shown, when using this product, a large amount of fine paper scraps and dust are easily generated when cutting and shredding paper. After release, these can easily cause harm to human health and the surrounding environment. After cutting and shredding, the micro air pump 22 can be started to draw in the internal air through the air inlet 23 and then discharge it downward through the air outlet 24. The particulate matter and fine paper scraps are filtered through the filter plate 25, and then the clean air is discharged to the outside to purify the internal air.

[0031] Working Principle: In use, paper is first fed into the paper inlet 2, then enters the gap between two sets of double-edged blades 5. Because the two sets of double-edged blades 5 move in opposite directions, the longer blades on the blades 5 first tear the paper. The torn paper segments, losing their surrounding support, then come into contact with the shorter blades, undergoing a second tear. The two sets of blades enhance the shredding effect. The shredded paper then falls downwards through the guide plate 6 and orderly into the shredder 7, accumulating on top of the hollow plate 12 and the rectangular plate 13. After the equipment has been used for a period of time, the motor 9 can be started. The motor 9 drives the bidirectional lead screw 15 to rotate. The rotation of the bidirectional lead screw 15 causes the outer left clamping plate 10 and right clamping plate 11 to move closer to each other, squeezing the shredded paper accumulated inside the left clamping plate 10 and right clamping plate 11, quickly squeezing out the air from the pores of the shredded paper, increasing the paper density and reducing shredding. To reduce the volume of debris, decrease the frequency of debris handling, and increase internal debris capacity, the micro pump 18 can be periodically turned on during use to maintain the sharpness of the double-edged blade assembly 5 and improve cutting efficiency. The micro pump 18 draws lubricating oil from the oil tank 17 and then transmits the lubricating oil to the oil outlet pipe 19, which is then discharged downwards through the nozzle 20. At the same time, the double-edged blade assembly 5 is started to rotate, which ensures that the surface of the double-edged blade assembly 5 is covered with lubricating oil and prevents cuts that may be caused by manual oiling. During use, because a large amount of fine paper scraps and dust are easily generated when cutting and breaking paper, which can easily cause harm to human health and the surrounding environment after release, the micro air pump 22 can be started after the breaking and cutting. The internal gas is drawn through the air inlet 23 and then discharged downwards through the air outlet 24. The particulate matter and fine paper scraps are filtered through the filter plate 25, and then the clean gas is discharged to the outside.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A domestic paper shredder with double-blade structure, comprising a box (1), characterized in that: The top end of the box (1) is fixedly connected with a paper inlet (2), the top of the front end of the box (1) is fixedly connected with a box door (3), the bottom of the front end of the box (1) is fixedly connected with a controller (4), the middle position inside the box (1) is movably connected with two groups of double-blade knife groups (5), the bottom end of the double-blade knife group (5) is provided with a plurality of paper guide sheets (6), and the bottom end inside the box (1) is fixedly connected with a paper scrap compression structure. The paper scrap compression structure comprises a paper shredder (7) fixedly connected to the bottom end inside the box (1), a bottom plate (8) fixedly connected to the bottom end inside the paper shredder (7), a motor (9) fixedly connected to the bottom end on the right side of the box (1), a left clamping plate (10) movably connected to the top end on the left side of the bottom plate (8), a right clamping plate (11) movably connected to the top end on the right side of the bottom plate (8), a hollow plate (12) fixedly connected to the right side of the bottom of the left clamping plate (10), a rectangular plate (13) fixedly connected to the left side of the bottom of the right clamping plate (11), guide rails (14) fixedly connected to the front and rear ends inside the bottom plate (8), and a bidirectional screw rod (15) arranged at the middle position inside the bottom plate (8).

2. A household paper shredder with double-blade structure according to claim 1, characterized in that: The movement directions of the double-blade knife groups (5) are opposite, the motor (9) penetrates through the box (1) and is fixedly connected with the bidirectional screw rod (15), and there is a distance between the bottom end of the hollow plate (12) and the rectangular plate (13) and the top end of the bidirectional screw rod (15).

3. A household paper shredder with double-blade structure according to claim 1, characterized in that: The internal shape size of the hollow plate (12) is consistent with the external shape size of the rectangular plate (13), and the rectangular plate (13) can move left and right along the inside of the hollow plate (12).

4. The household paper shredder with double-blade structure according to claim 1, characterized in that: The bottom of the left clamping plate (10) and the right clamping plate (11) is sleeved on the periphery of the left clamping plate (10) and the right clamping plate (11), and the left clamping plate (10) and the right clamping plate (11) can move left and right along the periphery of the guide rails (14) and the bidirectional screw rod (15).

5. The household paper shredder with double-blade structure according to claim 1, characterized in that: The rear end of the paper inlet (2) is fixedly connected with an oil inlet (16), the top end inside the box (1) is fixedly connected with an oil tank (17), the inside of the oil tank (17) is fixedly connected with a micro pump (18), the right side of the micro pump (18) is fixedly connected with an oil outlet pipe (19), and the front end of the oil outlet pipe (19) is fixedly connected with a plurality of spray heads (20).

6. A household paper shredder with double-blade structure according to claim 5, characterized in that: The oil inlet (16) is in communication with the inside of the oil tank (17), the micro pump (18) is in communication with the inside of the oil outlet pipe (19), and the spray heads (20) are arranged at equal intervals.

7. The household paper shredder with double-blade structure according to claim 1, characterized in that: The top end on the right side of the box (1) is fixedly connected with a side box (21), the inside of the side box (21) is fixedly connected with a micro air pump (22), the left side of the micro air pump (22) is fixedly connected with an air inlet (23), the front end of the micro air pump (22) is fixedly connected with an air outlet (24), and the inside of the side box (21) is fixedly connected with a filter plate (25).

8. A household paper shredder with double-blade structure according to claim 7, characterized in that: The air inlet (23) penetrates through the box (1) and extends to the inside of the box (1), and the air inlet (23) and the air outlet (24) are in communication with the inside of the micro air pump (22).