Paper shredder full paper detection device and paper shredder

By designing a paper full detection device for a shredder, the symmetrically arranged conveyor and pressure sensor are used to solve the problem of early filling of cartons and misjudging of residual capacity caused by differences in papers of different materials after cutting, which improves the space utilization and practicality of the equipment.

CN119869669APending Publication Date: 2025-04-25清远惠豪科技有限公司
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Patent Information

Application Number
CN202510267423.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-07
Publication Date
2025-04-25

AI Technical Summary

Technical Problem

When processing paper sheets of different materials, existing paper shredders are prone to fill the carton in advance or misjudgment of the remaining capacity due to differences in paper flossiness, which affects the space utilization and practicality of the equipment.

Method used

A paper shredder full paper detection device is designed, and the shredded paper is directed into the aggregate box through a symmetrically arranged conveyor, and the shredded paper is compacted and evenly distributed through the rotating mounting shaft and transmission belt to ensure the elimination of edge gaps. At the same time, the shutdown signal is triggered by using the pressure sensor to achieve stable detection of the paper.

Benefits of technology

It effectively solves the problem of early filling of cartons and misjudging of residual capacity caused by different fluffy levels of papers of different materials after cutting, improves the space utilization and practicality of the equipment, and ensures efficient blanking and compression treatment of shredded paper.

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Abstract

The invention relates to the technical field of paper shredders, and particularly discloses a paper shredder full paper detection device and a paper shredder, the paper shredder full paper detection device comprises a shell and further comprises a paper shredding mechanism, the paper shredding mechanism comprises a mounting seat fixedly connected to the top of the shell, six supporting rollers are rotatably connected to the interior of the mounting seat, and the six supporting rollers are divided into two groups, the three supporting rollers in each group are arranged in a right triangle and support a feeding belt; the symmetrically-arranged conveying mechanisms directionally guide shredded paper into the material collecting box through pushing force formed by opposite movement, efficient discharging is achieved, meanwhile, compression treatment of the shredded paper is completed, the void ratio between particles is reduced, rotation of the bottoms of the conveying mechanisms is achieved, the shredded paper accumulated in the middle of the material collecting box is evenly distributed into the whole material collecting box, edge voids are eliminated, and the paper collecting efficiency is improved. And when the materials in the material collecting box are compressed to a certain degree, the conveying mechanism continuously feeds to push the material collecting box to compress the reset spring, and a shutdown signal is triggered through the pressure sensor, so that stable detection after full paper is realized.
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Description

Technical Field

[0001] The present invention relates to the technical field of paper shredders, and in particular to a full-paper detection device for a paper shredder and a paper shredder. Background Art

[0002] As an information destruction device, the shredder achieves physical destruction of paper through mechanical cutting. It is mainly composed of a drive motor, a transmission component and a cutting mechanism. When the equipment is running, the motor drives the cutter group to rotate at high speed. Under the guidance of the guide comb, the paper is cut by the staggered tooth blades to form regular fragments, which fall into the paper collection box through the chip removal channel.

[0003] The full-paper detection device of the shredder uses infrared sensing to monitor the capacity of the paper collection box in real time, effectively preventing paper from blocking the channel and reducing maintenance costs and downtime caused by equipment failure. However, the fluffiness of paper of different materials varies significantly after cutting, which can easily cause the paper collection box to be filled in advance and increase the cleaning frequency. At the same time, when fluffy paper scraps accumulate in the middle of the paper collection box, there are still unfilled gaps on the edge, causing the infrared probe to misjudge the remaining capacity, resulting in reduced space utilization and affecting the practicality of the equipment.

[0004] Therefore, it is necessary to provide a full paper detection device for a shredder and a shredder, aiming to solve the above problems. Summary of the invention

[0005] The main purpose of the present invention is to provide a full paper detection device for a shredder and a shredder, which can effectively solve the problems in the background technology.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A paper shredder full paper detection device comprises a housing and further comprises:

[0008] A shredding mechanism, the shredding mechanism comprising a mounting seat fixedly connected to the top of the housing, six support rollers being rotatably connected inside the mounting seat, the six support rollers being divided into two groups of three, each group of three support rollers being arranged in a right triangle to support a feeding belt;

[0009] A paper collecting mechanism, the paper collecting mechanism comprising a connecting plate, a support box and a paper collecting box, the connecting plate is fixedly connected to the outside of the support box, the paper collecting box is slidably connected to the inside of the support box, a movable seat is symmetrically slidably connected to the inside of the support box, a clamping block is rotatably connected to the bottom of the movable seat, a spring 1 is fixedly connected between the movable seat and the inner wall of the support box, and a wedge block is fixedly connected to the bottom of the support box;

[0010] The detection mechanism includes a limit seat fixedly connected to the bottom of the shell, a movable plate is slidably connected inside the limit seat, a spring four is symmetrically fixedly connected between the limit seat and the movable plate, and a pressure sensor is fixedly installed inside the shell.

[0011] As a further improvement of the above solution, the shredding mechanism also includes a top plate fixedly connected to the top of the shell, a guide comb is fixedly connected to the interior of the top plate, and a shredding roller is symmetrically rotatably connected to the top of the mounting seat.

[0012] As a further improvement of the above scheme, the outer side of the mounting seat is fixedly connected to a support seat, the outer side of the support seat is fixedly installed with a motor, the inner side of the support seat is rotatably connected to a mounting shaft, the mounting shaft is fixedly connected to the motor output shaft through a coupling, the outer side of the mounting shaft is symmetrically fixedly connected to a worm, the outer side of one of the support rollers in each group is fixedly connected to a worm wheel, the worm wheels are meshed with each other, and the shredding roller and the support roller are transmitted in parallel through a transmission belt.

[0013] As a further improvement of the above scheme, the top of the movable seat is fixedly connected with a connecting rod, the top of the connecting rod is fixedly connected with a sliding block, the top of the paper collecting box is symmetrically fixedly connected with a connecting block, and the connecting block and the sliding block are both slidably connected to the top of the support box.

[0014] As a further improvement of the above solution, a guide rod is fixedly connected to the bottom of the shell, and the guide rod passes through the spring four and is slidably connected to the movable plate.

[0015] Another purpose of an embodiment of the present invention is to provide a paper shredder, comprising a shell and a support box, wherein a leak-proof mechanism is arranged inside the shell, wherein the leak-proof mechanism comprises a fixed seat, a leak-proof belt, a movable block and a connecting seat, wherein the fixed seat is fixedly connected to the inner wall of the leak-proof mechanism, one end of the leak-proof belt is fixedly connected to the top inner wall of the fixed seat, and the other end of the leak-proof belt is fixedly connected to the connecting seat, the movable block is slidably connected to the inside of the fixed seat, a limit rod is symmetrically fixedly connected to the inside of the fixed seat, the movable block is slidably connected to the outside of the limit rod, a spring 2 is fixedly connected between the movable block and the inner wall of the fixed seat, and a guide block is fixedly connected to the inside of the fixed seat.

[0016] As a further improvement of the above solution, the inside of the shell is symmetrically fixedly connected with side panels, the support box is slidably connected between the two side panels, and a feeding sleeve is fixedly connected between the tops of the two side panels.

[0017] As a further improvement of the above scheme, a snap-in block is symmetrically fixedly connected to one side of the support box close to the fixed seat, a sliding rod is symmetrically slidably connected inside the connecting seat, a connecting sleeve is fixedly connected to one side of the two sliding rods close to each other, the snap-in blocks are slidably connected to the connecting sleeve, a spring three is fixedly connected between the two connecting sleeves, and a push block is fixedly connected inside the connecting sleeve.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The symmetrically arranged conveying mechanism uses the pushing force formed by the opposite movement to guide the shredded paper into the collection box in a direction, and completes the compression process of the shredded paper while achieving efficient material dropping, reducing the void ratio between particles. The rotation of the bottom of the conveying mechanism evenly distributes the shredded paper accumulated in the middle of the collection box to the entire collection box to eliminate the edge gaps. When the material in the collection box is compressed to a certain extent, the conveying mechanism continues to feed and push the compression reset spring of the collection box, and triggers the stop signal through the pressure sensor to achieve stable detection after full paper.

[0020] 2. When the paper collecting mechanism is maintained, the supporting box is displaced by driving the connecting plate. The supporting box is linked to the connecting seat through the clamping block, and the anti-leakage belt is driven to seal the bottom of the feeding sleeve. It is used to replace the original paper collecting mechanism to achieve temporary paper shredding support, so as to improve the continuous operation capacity of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the cross-sectional structure of the housing of the present invention;

[0024] Figure 3 It is a schematic diagram of the internal structure of the housing of the present invention;

[0025] Figure 4 For the present invention Figure 3 The structural diagram at A in the middle;

[0026] Figure 5 It is a schematic diagram of the structure of the housing of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the mounting seat of the present invention;

[0028] Figure 7 It is a partial structural schematic diagram of the paper shredding mechanism of the present invention;

[0029] Figure 8 It is a structural schematic diagram of the paper collecting mechanism of the present invention;

[0030] Fig. 9 It is a structural schematic diagram of the support box of the present invention;

[0031] Fig.10 It is a structural schematic diagram of the paper collecting box and the clamping block of the present invention;

[0032] Fig.11 It is a structural schematic diagram of the fixing seat of the present invention;

[0033] Fig.12 It is a schematic diagram of the internal structure of the fixing seat of the present invention;

[0034] Fig.13 It is a schematic diagram of the internal structure of the connecting socket of the present invention.

[0035] In the figure: 1, housing; 2, shredding mechanism; 201, top plate; 202, guide comb; 203, mounting seat; 204, feeding belt; 205, support roller; 206, shredding roller; 207, support seat; 208, motor; 209, transmission belt; 210, mounting shaft; 211, worm; 212, worm gear; 3, paper collecting mechanism; 301, connecting plate; 302, supporting box; 303, paper collecting box; 304, movable seat; 305, block; 306, connecting rod; 307, spring 1; 308, wedge block ; 309, connecting block; 310, sliding block; 4, leak-proof mechanism; 401, fixed seat; 402, leak-proof belt; 403, movable block; 404, clamping block; 405, spring two; 406, connecting seat; 407, guide block; 408, connecting sleeve; 409, spring three; 410, sliding rod; 411, pushing block; 412, limiting rod; 5, detection mechanism; 501, limiting seat; 502, movable plate; 503, guide rod; 504, spring four; 505, pressure sensor; 6, side plate; 7, blanking sleeve. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figures 1 to 13 As shown, the present invention provides an embodiment:

[0038] A paper shredder full paper detection device comprises a housing 1 and further comprises:

[0039] The shredder mechanism 2 includes a mounting base 203 fixedly connected to the top of the housing 1, and six support rollers 205 are rotatably connected inside the mounting base 203. The six support rollers 205 are divided into two groups of three, and each group of three support rollers 205 is arranged in a right triangle to support a feeding belt 204;

[0040] The paper collecting mechanism 3 includes a connecting plate 301, a supporting box 302 and a paper collecting box 303. The connecting plate 301 is fixedly connected to the outside of the supporting box 302. The paper collecting box 303 is slidably connected to the inside of the supporting box 302. The inside of the supporting box 302 is symmetrically slidably connected to a movable seat 304. The bottom of the movable seat 304 is rotatably connected to a clamping block 305. A spring 307 is fixedly connected between the movable seat 304 and the inner wall of the supporting box 302. A wedge block 308 is fixedly connected to the bottom of the supporting box 302.

[0041] The detection mechanism 5 includes a limit seat 501 fixedly connected to the bottom of the shell 1, and a movable plate 502 is slidably connected inside the limit seat 501. A spring four 504 is symmetrically fixedly connected between the limit seat 501 and the movable plate 502. A pressure sensor 505 is fixedly installed inside the shell 1, and a guide rod 503 is fixedly connected to the bottom of the shell 1. The guide rod 503 passes through the spring four 504 and is slidably connected to the movable plate 502.

[0042] In practical application, if Figure 1 , Figure 2 and Figure 3 As shown, the cut shredded paper falls between the two feeding belts 204. Since the feeding belts 204 rotate under the support of three supporting rollers 205, the two feeding belts 204 can compact the shredded paper on the opposite side and push the shredded paper downward to facilitate falling into the paper collecting mechanism 3 at the bottom. When the shredded paper continues to fall into the paper collecting box 303, the bottom of the two feeding belts 204 evenly distributes the shredded paper accumulated in the middle of the collecting box to the entire collecting box 303 to eliminate the edge gaps.

[0043] like Figure 1 , Figure 3 , Figure 8 , Fig. 9 and Fig.10As shown, when the shredded paper in the paper collecting box 303 accumulates to a certain extent, the continued pushing of the feeding belts 204 will push the paper collecting box 303 through the shredded paper, so that the paper collecting box 303 can move downward stably in the support box 302. During the movement of the paper collecting box 303, the movable seat 304 will also move downward under the elastic force of the spring 1 307. The movable seat 304 moving downward drives the clamping block 305 to move synchronously, and the clamping block 305 is guided by the wedge block 308 to rotate toward the paper collecting box 303. When the clamping block 305 rotates ninety degrees, the paper collecting box 303 can be clamped in the support box 302, so that the paper collecting box 303 can be fixed at a specified position in the support box 302.

[0044] like Figure 3 , Figure 4 and Figure 5 As shown, the downward movement of the paper collecting box 303 will also push the movable plate 502 at the bottom, so that the movable plate 502 moves downward under the guide limit of the guide rod 503 and compresses the spring four 504. When the paper collecting box 303 moves to the specified position, the movable plate 502 triggers a stop signal through the pressure sensor 505, thereby realizing stable detection of the paper collecting box 303 being full of paper.

[0045] like Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, the shredding mechanism 2 further comprises a top plate 201 fixedly connected to the top of the housing 1 , a guide comb 202 is fixedly connected inside the top plate 201 , and a shredding roller 206 is symmetrically rotatably connected to the top of the mounting seat 203 .

[0046] In actual application of this embodiment, the paper feeding system realizes precise alignment of the material through the guide comb 202 to ensure that the paper enters the housing 1 at a set angle, and then passes through the two shredding rollers 206 to realize the cutting of the paper.

[0047] like Figure 6 and Figure 7 As shown, the outer side of the mounting seat 203 is fixedly connected to a support seat 207, the outer side of the support seat 207 is fixedly installed with a motor 208, the inner side of the support seat 207 is rotatably connected to a mounting shaft 210, the mounting shaft 210 is fixedly connected to the output shaft of the motor 208 through a coupling, the outer side of the mounting shaft 210 is symmetrically fixedly connected to a worm 211, the outer side of one of the support rollers 205 in each group is fixedly connected to a worm gear 212, the worm gears 212 are meshed with each other, and the shredding roller 206 and the support roller 205 are parallelly driven by a transmission belt 209.

[0048] In actual application of this embodiment, when the pressure sensor 505 does not transmit a stop signal, the operating motor 208 is started, and the motor 208 drives the installation shaft 210 to rotate. The two worm gears 211 are symmetrically fixedly connected to the outer side of the installation shaft 210 and rotate therewith. Since the two worm gears 211 are symmetrically arranged, they respectively push the worm gears 212 meshing therewith to rotate, thereby realizing that the two worm gears 212 rotate in opposite directions. The rotating worm gear 212 drives the feed belt 204 to rotate through the support roller 205 on the one hand, and drives the shredding roller 206 to rotate through the transmission belt 209 on the other hand. In this way, it can be ensured that the shredding roller 206 and the feed belt 204 can achieve synchronous rotation.

[0049] like Fig. 9 As shown, the top of the movable seat 304 is fixedly connected with a connecting rod 306, the top of the connecting rod 306 is fixedly connected with a slider 310, the top of the paper collecting box 303 is symmetrically fixedly connected with a connecting block 309, and the connecting block 309 and the slider 310 are both slidably connected to the top of the support box 302.

[0050] In actual application of this embodiment, the connecting rod 306 is used to connect the movable seat 304 and the slider 310, and at the same time plays a protective role when the spring 1 307 is bent and reset. When the slider 310 moves upward, it will push the connecting block 309 to rise synchronously, and through the transmission effect of the movable seat 304, the clamping block 305 is driven to rotate out of the paper collecting box 303, thereby releasing the clamping state, so that the paper collecting box 303 can be taken out of the support box 302.

[0051] like Figure 2 , Figure 3 , Fig.11 , Fig.12 and Fig.13 As shown, the present invention provides another embodiment:

[0052] A paper shredder comprises a shell 1 and a support box 302. A leak-proof mechanism 4 is arranged inside the shell 1. The leak-proof mechanism 4 comprises a fixed seat 401, a leak-proof belt 402, a movable block 403 and a connecting seat 406. The fixed seat 401 is fixedly connected to the inner wall of the leak-proof mechanism 4. One end of the leak-proof belt 402 is fixedly connected to the top inner wall of the fixed seat 401. The other end of the leak-proof belt 402 is fixedly connected to the connecting seat 406. The movable block 403 is slidably connected to the inside of the fixed seat 401. The inside of the fixed seat 401 is symmetrically fixedly connected to a limit rod 412. The movable block 403 is slidably connected to the limit rod 412. 12, a spring 2 405 is fixedly connected between the movable block 403 and the inner wall of the fixed seat 401, a guide block 407 is fixedly connected inside the fixed seat 401, a clamping block 404 is symmetrically fixedly connected to the side of the support box 302 close to the fixed seat 401, a slide bar 410 is symmetrically slidably connected inside the connecting seat 406, a connecting sleeve 408 is fixedly connected to the side where the two slide bars 410 are close to each other, the clamping blocks 404 are slidably connected to the connecting sleeve 408, a spring 3 409 is fixedly connected between the two connecting sleeves 408, and a push block 411 is fixedly connected inside the connecting sleeve 408;

[0053] The inside of the housing 1 is symmetrically fixedly connected with side plates 6 , the support box 302 is slidably connected between the two side plates 6 , and a material discharge sleeve 7 is fixedly connected between the tops of the two side plates 6 .

[0054] In actual application of this embodiment, when it is necessary to clean the paper collection box 303, the connecting plate 301 and the support box 302 are pulled outward, and the support box 302 drives the connecting sleeve 408 to move through its fixed clamping block 404, and the connecting sleeve 408 drives the connecting seat 406 to move synchronously through the sliding rod 410, and the connecting seat 406 drives the anti-leakage belt 402 to move synchronously with the support box 302 under the constraint of the guide block 407. During the movement, the limit rod 412 maintains the stable operation of the anti-leakage belt 402, and the anti-leakage belt When 402 moves, it pushes the movable block 403 to compress the spring two 405. When the support box 302 moves out of the bottom of the side plate 6, it stops moving. At this time, the spring three 409 drives the two connecting sleeves 408 to move in the opposite direction. The sliding rod 410 is used to realize the single-sided clamping of the side plate 6 to temporarily replace the paper collecting mechanism 3. When the paper collecting box 303 is installed, the clamping block 404 pushes the connecting sleeve 408 to move toward each other under the guidance of the pushing block 411, so that the sliding rod 410 is disconnected from the connecting seat 406, thereby realizing the reset of the anti-leakage belt 402.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A paper shredder full paper detection device, comprising a housing (1), characterized in that: Also includes: A paper shredding mechanism (2), the paper shredding mechanism (2) comprising a mounting seat (203) fixedly connected to the top of the housing (1), six support rollers (205) being rotatably connected inside the mounting seat (203), the six support rollers (205) being divided into two groups of three, each group of three support rollers (205) being arranged in a right triangle and supporting a feeding belt (204); A paper collecting mechanism (3), the paper collecting mechanism (3) comprising a connecting plate (301), a supporting box (302) and a paper collecting box (303), the connecting plate (301) being fixedly connected to the outside of the supporting box (302), the paper collecting box (303) being slidably connected to the inside of the supporting box (302), the inside of the supporting box (302) being symmetrically slidably connected to a movable seat (304), the bottom of the movable seat (304) being rotatably connected to a clamping block (305), a spring 1 (307) being fixedly connected between the movable seat (304) and the inner wall of the supporting box (302), and a wedge block (308) being fixedly connected to the bottom of the supporting box (302); The detection mechanism (5) comprises a limit seat (501) fixedly connected to the bottom of the housing (1), a movable plate (502) being slidably connected inside the limit seat (501), a spring four (504) being symmetrically fixedly connected between the limit seat (501) and the movable plate (502), and a pressure sensor (505) being fixedly installed inside the housing (1).

2. A paper shredder full paper detection device according to claim 1, characterized in that: The paper shredding mechanism (2) further comprises a top plate (201) fixedly connected to the top of the housing (1), a guide comb (202) being fixedly connected inside the top plate (201), and a paper shredding roller (206) being symmetrically rotatably connected to the top of the mounting seat (203).

3. A paper shredder full paper detection device according to claim 2, characterized in that: The outer side of the mounting seat (203) is fixedly connected to a support seat (207), the outer side of the support seat (207) is fixedly mounted with a motor (208), the interior of the support seat (207) is rotatably connected to a mounting shaft (210), the mounting shaft (210) is fixedly connected to an output shaft of the motor (208) via a coupling, the outer side of the mounting shaft (210) is symmetrically fixedly connected to a worm (211), the outer side of one of the support rollers (205) in each group is fixedly connected to a worm wheel (212), the worm wheels (212) and the worm wheels (212) are meshed with each other, and the shredding roller (206) and the support roller (205) are parallelly driven via a transmission belt (209).

4. The full paper detection device for a shredder according to claim 2, characterized in that: The top of the movable seat (304) is fixedly connected to a connecting rod (306), the top of the connecting rod (306) is fixedly connected to a sliding block (310), the top of the paper collecting box (303) is symmetrically fixedly connected to a connecting block (309), and the connecting block (309) and the sliding block (310) are both slidably connected to the top of the supporting box (302).

5. The full paper detection device for a shredder according to claim 2, characterized in that: A guide rod (503) is fixedly connected to the bottom of the housing (1), and the guide rod (503) passes through a spring four (504) and is slidably connected to the movable plate (502).

6. A shredder, comprising a full paper detection device for a shredder according to any one of claims 1 to 5, characterized in that: The invention also comprises a housing (1) and a support box (302); a leak-proof mechanism (4) is arranged inside the housing (1); the leak-proof mechanism (4) comprises a fixed seat (401), a leak-proof belt (402), a movable block (403) and a connecting seat (406); the fixed seat (401) is fixedly connected to the inner wall of the leak-proof mechanism (4); one end of the leak-proof belt (402) is fixedly connected to the top inner wall of the fixed seat (401); and the other end of the leak-proof belt (402) is fixedly connected to the inner wall of the top of the fixed seat (401); The movable block (403) is fixedly connected to the connecting seat (406), the movable block (403) is slidably connected to the inside of the fixed seat (401), the inside of the fixed seat (401) is symmetrically fixedly connected to a limit rod (412), the movable block (403) is slidably connected to the outside of the limit rod (412), a spring 2 (405) is fixedly connected between the movable block (403) and the inner wall of the fixed seat (401), and a guide block (407) is fixedly connected to the inside of the fixed seat (401).

7. A paper shredder according to claim 6, characterized in that: The inside of the shell (1) is symmetrically fixedly connected with side plates (6), the support box (302) is slidably connected between the two side plates (6), and a material discharge sleeve (7) is fixedly connected between the tops of the two side plates (6).

8. A paper shredder according to claim 6, characterized in that: The support box (302) is symmetrically fixedly connected with a snap-in block (404) on one side close to the fixed seat (401), and the interior of the connecting seat (406) is symmetrically slidably connected with a slide rod (410), and the two slide rods (410) are fixedly connected with a connecting sleeve (408) on one side close to each other, and the snap-in blocks (404) are slidably connected to the connecting sleeve (408), and a spring three (409) is fixedly connected between the two connecting sleeves (408), and a push block (411) is fixedly connected inside the connecting sleeve (408).

Citation Information

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