Paper shredder with paper scrap sweeping and pressing device

Abstract

The invention discloses a paper shredder with a paper scrap sweeping and pressing device, relates to the technical field of paper shredders, and aims to solve the problem that the friction of a cutter during operation is increased due to the fact that paper scraps can be adhered to the paper shredding cutter, the paper shredder comprises a paper shredder body, a rectangular hole is formed in a front panel of the paper shredder body, and a drawing box is movably connected into the rectangular hole; the paper shredding opening is fixedly connected to the top end of the paper shredder body; the control panel is fixedly connected to the top end of the paper shredder body, and the control panel is located behind the paper shredding opening; the power port is fixedly connected to one side of the paper shredder body; the two paper shredding cutters are both arranged in the paper shredding machine body, and the paper shredding cutters are located below the paper shredding opening; and the paper scrap adheres to the blowing assembly. The paper shredder with the paper scrap sweeping and pressing device has the technical effects that adhered paper scraps can be blown away in time, the paper scraps are prevented from being embedded into parts such as gaps and cutting edges of cutters, extra friction generated by foreign matters during operation of the cutters is reduced, the abrasion degree is reduced, and the service life of the cutters is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of paper shredders, and in particular to a paper shredder comprising a paper scrap sweeping and pressing device. Background Art

[0002] A shredder is an office device that is mainly used to cut paper documents into small pieces to maintain confidentiality and prevent information leakage.

[0003] When the shredder is shredding paper, the shredded paper will adhere to the shredding tools. The attached paper scraps will increase the friction of the tools during operation, accelerate tool wear, shorten the tool life, and increase the cost of tool replacement. Summary of the Invention

[0004] The invention discloses a paper shredder with a paper scrap sweeping and pressing device, which aims to solve the technical problem that paper scraps adhere to a paper shredding cutter during shredding, resulting in increased friction of the cutter during operation and accelerated wear of the cutter.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A paper shredder with a paper scrap sweeping and crushing device, comprising: A shredder body, wherein a rectangular hole is formed on the front panel of the shredder body, and a pull-out box is movably connected to the interior of the rectangular hole; A shredder port, fixedly connected to the top of the shredder body; A control panel is fixedly connected to the top of the shredder body and is located behind the shredding opening; The power port is fixedly connected to one side of the shredder body; Two shredding cutters are both arranged inside the shredder body, and the shredding cutters are located below the shredding opening; The paper scraps adhering and blowing assembly is arranged inside the shredder body and is located below the control panel. The paper scraps adhering and blowing assembly is used to clean the scraps adhering to the shredder blades. The paper scrap compacting and spreading component is arranged inside the pull-out box, and is used for spreading and compacting the paper scraps.

[0006] In a preferred embodiment, the paper scrap adhesion and purge assembly includes: A fixed base is fixedly connected to the inner wall of the shredder away from the power port, and a movable rod is movably connected to the front end of the fixed base; A rotating frame is fixedly connected to the outer side of the movable rod; The blowing shell is fixedly connected to a side of the rotating frame away from the movable rod, and a plurality of blowers are fixedly connected inside the blowing shell.

[0007] In a preferred embodiment, the paper scrap adhesion and purge assembly further comprises: The motor frame is fixedly connected to the inner side of the shredder body away from the fixed seat, the inner side of the motor frame is fixedly connected to the servo motor, and the power output shaft of the servo motor is connected to the rotating rod through a coupling; The sector gear rod is fixedly connected to the outer side of the rotating rod, and the outer side of the end of the movable rod away from the fixed seat is fixedly connected to the rotating gear, and the sector gear rod and the rotating gear are meshed through the tooth groove; The debris blocking protection panel is fixedly connected to a side of the blowing housing away from the hair dryer.

[0008] In a preferred solution, two movable springs are fixedly connected to both sides of the fixed seat, one end of the movable spring away from the fixed seat is fixedly connected to the connecting seat, and one side of the upper connecting seat is fixedly connected to the inner wall of the shredder body.

[0009] In a preferred embodiment, the paper scraps compacting and laying assembly comprises: A rotating pressing plate is arranged inside the pull-out box; The bottom frame is arranged on one side of the rotating pressing plate, and a fixed plate is fixedly connected to the side of the bottom frame close to the rotating pressing plate; The connecting frame is fixedly connected to the bottom end of the base frame. The bottom end of the connecting frame is fixedly connected to a telescopic driving rod. The bottom end of the telescopic driving rod is fixedly connected to the inner bottom end of the pull-out box.

[0010] In a preferred embodiment, the paper scraps compacting and laying assembly further comprises: A linkage rod is fixedly connected to the inner side of the rotating pressing plate close to the connecting frame, and one end of the linkage rod away from the connecting frame is movably connected to the inner side of the fixed plate; The chute seat is fixedly connected to the side of the base frame close to the rotating pressing plate. A circular hole is opened at the bottom end of the chute seat. The inside of the circular hole is fixedly connected to the electric telescopic rod. The bottom end of the electric telescopic rod is fixedly connected to the top of the connecting frame. The movable gear plate is movably connected to the inner side of the slide seat, and the bottom end of the movable gear plate is fixedly connected to the top end of the electric telescopic rod.

[0011] In a preferred solution, the outer side of one end of the linkage rod close to the movable gear plate is fixedly connected to a rotating gear, the rotating gear and the movable gear plate are engaged with each other through two-phase teeth and grooves, a through hole is opened on the side of the base frame away from the rotating gear, and a fixed rod is connected to the inside of the through hole through sliding.

[0012] In a preferred solution, the front end of the pull-out box is fixedly connected to a pull-out armrest, and both sides of the inner wall of the shredder body are connected to forward rollers by rotation, and the outer sides of the forward rollers are fixedly connected to the inner sides of the shredder cutters near the pull-out armrest, and both sides of the inner wall of the shredder body are connected to reverse rollers by rotation, and the outer sides of the reverse rollers are fixedly connected to the inner sides of the shredder cutters away from the pull-out armrest, and the side of the shredder body close to the connecting seat is fixedly connected to a support platform, and the front side of the support platform is fixedly connected to one side of the connecting seat below the rotating frame, and the inner wall of the pull-out box close to the rotating pressing plate is fixedly connected to a fixing frame, and the inner two ends of the fixing frame are fixedly connected to the two ends of the fixing rod.

[0013] From the above, it can be seen that the paper shredder provided by the present invention, which contains a paper scrap sweeping and pressing device, has the technical effect of blowing away adhered paper scraps in time, preventing paper scraps from embedding in tool gaps, cutting edges and other parts, reducing the additional friction caused by foreign matter during tool operation, reducing the degree of wear, and extending the service life of the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a paper shredder with a paper scrap sweeping and pressing device proposed by the present invention.

[0015] Figure 2 This is a schematic diagram of the internal structure of a pull-out box of a shredder with a paper scrap sweeping and pressing device proposed by the present invention.

[0016] Figure 3 This is a schematic diagram of the internal structure of a shredder body with a paper scrap sweeping and pressing device proposed by the present invention.

[0017] Figure 4 This is a schematic structural diagram of the paper shredder cutter portion of a paper shredder with a paper scrap sweeping and pressing device proposed by the present invention.

[0018] Figure 5 This is a schematic structural diagram of a paper scrap adhesion and blowing assembly of a paper shredder with a paper scrap sweeping and pressing device proposed by the present invention.

[0019] Figure 6 This is a partial structural schematic diagram of a paper scrap adhesion and blowing component of a paper shredder with a paper scrap sweeping and pressing device proposed by the present invention.

[0020] Figure 7 This is a schematic structural diagram of a paper scrap compacting and flattening assembly of a paper shredder with a paper scrap sweeping and pressing device proposed by the present invention.

[0021] Figure 8 This is a partial structural schematic diagram of the paper scrap compacting and flattening component of a paper shredder with a paper scrap sweeping and pressing device proposed by the present invention.

[0022] Figure: 1. Paper shredder body; 2. Pull-out box; 3. Pull-out armrest; 4. Control panel; 5. Paper shredder port; 6. Power port; 7. Forward roller; 8. Paper scrap compacting and spreading assembly; 801. Rotating pressing plate; 802. Fixed rod; 803. Base frame; 804. Connecting frame; 805. Telescopic drive rod; 806. Fixed plate; 807. Linkage rod; 808. Rotating gear; 809. Movable gear plate; 810. Slide seat; 811. Electric telescopic rod; 9. Fixed frame ; 10. Paper shredder; 11. Support platform; 12. Paper scrap adhesion blowing assembly; 1201. Fixed seat; 1202. Rotating frame; 1203. Blowing shell; 1204. Debris blocking protection panel; 1205. Movable spring; 1206. Connecting seat; 1207. Rotating gear; 1208. Fan-shaped gear rod; 1209. Rotating rod; 1210. Motor frame; 1211. Servo motor; 1212. Movable rod; 1213. Blower; 13. Reversing roller. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] The present invention discloses a paper shredder with a paper scrap sweeping and pressing device, which is mainly used in scenarios where paper scraps adhere to a paper shredding tool during shredding, resulting in increased friction of the tool during operation and accelerated wear of the tool.

[0025] Reference Figures 1-8 , a paper shredder with a paper scrap sweeping and crushing device, comprising: The shredder body 1 has a rectangular hole on its front panel, and a pull-out box 2 is movably connected to the inside of the rectangular hole; A shredder opening 5 is fixedly connected to the top of the shredder body 1; A control panel 4 is fixedly connected to the top of the shredder body 1 and is located behind the shredding opening 5; A power port 6 is fixedly connected to one side of the shredder body 1; Two shredding cutters 10 are both arranged inside the shredder body 1, and the shredding cutters 10 are located below the shredding opening 5; The paper scraps adhering and blowing assembly 12 is provided inside the shredder body 1 and is located below the control panel 4. The paper scraps adhering and blowing assembly 12 is used to clean the scraps adhering to the shredder blade 10. The paper scrap compacting and spreading component 8 is arranged inside the pull-out box 2, and the paper scrap compacting and spreading component 8 is used to spread and compact the paper scraps.

[0026] Reference Figure 3 、 Figure 5and Figure 6 In a preferred embodiment, the paper dust adhesion purge assembly 12 includes: The fixing base 1201 is fixedly connected to the inner wall of the shredder away from the power port 6, and the front end of the fixing base 1201 is movably connected to the movable rod 1212; The rotating frame 1202 is fixedly connected to the outer side of the movable rod 1212; The blowing shell 1203 is fixedly connected to a side of the rotating frame 1202 away from the movable rod 1212 , and a plurality of blowers 1213 are fixedly connected inside the blowing shell 1203 .

[0027] In the present invention, the paper scrap adhesion purge assembly 12 further includes: The motor frame 1210 is fixedly connected to the inner side of the shredder body 1 away from the fixed base 1201. The inner side of the motor frame 1210 is fixedly connected to the servo motor 1211. The power output shaft of the servo motor 1211 is connected to the rotating rod 1209 through a coupling. The sector gear rod 1208 is fixedly connected to the outer side of the rotating rod 1209. The outer side of the end of the movable rod 1212 away from the fixed base 1201 is fixedly connected to the rotating gear 1207. The sector gear rod 1208 and the rotating gear 1207 are meshed through the teeth. The debris blocking protection panel 1204 is fixedly connected to a side of the blowing housing 1203 away from the hair dryer 1213 .

[0028] In the present invention, two movable springs 1205 are fixedly connected to both sides of the fixed seat 1201, and one end of the movable spring 1205 away from the fixed seat 1201 is fixedly connected to the connecting seat 1206, and one side of the upper connecting seat 1206 is fixedly connected to the inner wall of the shredder body 1.

[0029] In a specific application scenario, when cleaning the debris on the paper shredder 10, the servo motor 1211 is installed on the inner side of the motor frame 1210. After starting, it drives the rotating rod 1209 to rotate, and the fan-shaped gear rod 1208 fixed on the outer side of the rotating rod 1209 rotates accordingly. Since the fan-shaped gear rod 1208 is engaged with the rotating gear 1207 on the outer side of one end of the movable rod 1212 through the tooth groove, the rotation of the fan-shaped gear rod 1208 will cause the rotating gear 1207 to rotate, thereby driving the movable rod 1212 to rotate on the fixed seat 1 When the front end of 201 moves, the rotating frame 1202 fixed on the outside of the movable rod 1212 will move with the movement of the movable rod 1212, and the blowing shell 1203 fixedly connected to the rotating frame 1202 will also be driven to adjust the position and angle so that the blower 1213 can be better aligned with the paper shredding tool 10. When the blower shell 1203 reaches the appropriate position, the multiple blowers 1213 inside are started, blowing out air flow, passing through the debris blocking protection panel 1204, and blowing away the debris adhering to the paper shredding tool 10.

[0030] Specifically, blow away the sticky paper scraps in time to prevent them from being embedded in the gaps and cutting edges of the tool, reduce the extra friction caused by foreign matter during tool operation, reduce the degree of wear, and extend the service life of the tool.

[0031] It should be noted that the movable springs 1205 on both sides of the fixing seat 1201 will deform with the movement of the blowing shell 1203, playing the role of buffering and assisting in resetting.

[0032] Reference Figure 1 、 Figure 2 、 Figure 7 and Figure 8 In a preferred embodiment, the paper scraps compacting and laying component 8 comprises: The rotating pressing plate 801 is arranged inside the pull-out box 2; The bottom frame 803 is provided on one side of the rotating pressing plate 801. A fixing plate 806 is fixedly connected to the side of the bottom frame 803 close to the rotating pressing plate 801. The connecting frame 804 is fixedly connected to the bottom end of the base frame 803 . The bottom end of the connecting frame 804 is fixedly connected to a telescopic driving rod 805 . The bottom end of the telescopic driving rod 805 is fixedly connected to the inner bottom end of the pull-out box 2 .

[0033] In the present invention, the paper scraps compacting and laying component 8 further comprises: The linkage rod 807 is fixedly connected to the inner side of the rotating pressing plate 801 close to the connecting frame 804, and the end of the linkage rod 807 away from the connecting frame 804 is movably connected to the inner side of the fixed plate 806; The chute seat 810 is fixedly connected to the side of the base frame 803 near the rotating pressing plate 801. The bottom end of the chute seat 810 is provided with a circular hole. The inside of the circular hole is fixedly connected to the electric telescopic rod 811. The bottom end of the electric telescopic rod 811 is fixedly connected to the top of the connecting frame 804. The movable gear plate 809 is movably connected to the inner side of the slide seat 810 , and the bottom end of the movable gear plate 809 is fixedly connected to the top end of the electric telescopic rod 811 .

[0034] In the present invention, a rotating gear 808 is fixedly connected to the outer side of one end of the linkage rod 807 close to the movable gear plate 809, and the rotating gear 808 and the movable gear plate 809 are engaged with each other through two-phase teeth and grooves. A through hole is provided on the side of the base frame 803 away from the rotating gear 808, and a fixed rod 802 is connected to the inside of the through hole through sliding.

[0035] In a specific application scenario, before starting work, the pull-out box 2 is inside the shredder body 1, the rotating pressing plate 801 is close to the front inner wall of the shredder body 1, and the electric telescopic rod 811 starts to shorten. Since the top of the electric telescopic rod 811 is fixedly connected to the movable gear plate 809, it will push the movable gear plate 809 to slide upward in the slide seat 810. The sliding of the movable gear plate 809 drives the rotating gear 808 to rotate, causing the rotating pressing plate 801 to rotate downward to flatten the shredded paper. When the shredded paper is initially flattened, the telescopic drive rod 805 begins to shorten, driving the connecting frame 804 to move. Since the connecting frame 804 is fixedly connected to the base frame 803, the base frame 803 moves on the fixed rod 802, driving the rotating pressing plate 801 to move downward to press the flattened shredded paper.

[0036] Specifically, the loose paper scraps are compacted and laid flat to reduce their volume, so that the pull-out box 2 can accommodate more paper scraps and reduce the frequency of cleaning, which is particularly suitable for scenarios with a large amount of paper scraps.

[0037] Reference Figure 1-Figure 4 In a preferred embodiment, the front end of the pull-out box 2 is fixedly connected to the pull-out armrest 3, and the two sides of the inner wall of the shredder body 1 are connected with forward rollers 7 by rotation. The outer side of the forward roller 7 is fixedly connected to the inner side of the shredder tool 10 close to the pull-out armrest 3, and the two sides of the inner wall of the shredder body 1 are connected with reverse rollers 13 by rotation. The outer side of the reverse roller 13 is fixedly connected to the inner side of the shredder tool 10 away from the pull-out armrest 3. The side of the shredder body 1 close to the connecting seat 1206 is fixedly connected to the support platform 11, and the front side of the support platform 11 is fixedly connected to one side of the connecting seat 1206 below the rotating frame 1202. The inner wall of the pull-out box 2 close to the rotating pressing plate 801 is fixedly connected to the fixing frame 9, and the inner ends of the fixing frame 9 are fixedly connected to the two ends of the fixing rod 802.

[0038] Working principle: When in use, paper is fed into the shredder body 1 from the shredder opening 5. The forward roller 7 and reverse roller 13 on both sides of the inner wall of the shredder body 1 drive the shredder blade 10 to rotate, shredding the fed paper into shredded paper. During the operation of the paper shredder 10, the paper scraps adhering and blowing assembly 12 is activated. The servo motor 1211 is mounted on the inner side of the motor frame 1210. After the power is turned on, the power output shaft thereof drives the rotating rod 1209 to rotate through the coupling.

[0039] The servo motor 1211 is installed inside the motor frame 1210. After starting, it drives the rotating rod 1209 to rotate, and the fan-shaped gear rod 1208 fixed on the outside of the rotating rod 1209 rotates accordingly. Since the fan-shaped gear rod 1208 is engaged with the rotating gear 1207 on the outside of one end of the movable rod 1212 through the tooth groove, the rotation of the fan-shaped gear rod 1208 will cause the rotating gear 1207 to rotate, thereby driving the movable rod 1212 to move at the front end of the fixed seat 1201, and the rotating frame 120 fixed on the outside of the movable rod 1212 2 will move with the movement of the movable rod 1212, and the blowing housing 1203 fixedly connected to the rotating frame 1202 will also be moved, adjusting the position and angle so that the blower 1213 can better align with the paper shredder 10. When the blowing housing 1203 reaches the appropriate position, the multiple blowers 1213 inside are started, blowing out air, passing through the debris blocking protection panel 1204, and blowing away the debris adhering to the paper shredder 10. The movable springs 1205 on both sides of the fixed seat 1201 play a buffering and auxiliary reset role; After the shredder cutter 10 pulverizes the shredder scraps, they fall into the drawer box 2. At this time, the rotary pressing plate 801 approaches the front inner wall of the shredder body 1, and the electric telescopic rod 811 starts to shorten. Since the top of the electric telescopic rod 811 is fixedly connected to the movable gear plate 809, it will push the movable gear plate 809 to slide upward in the slide seat 810. The sliding of the movable gear plate 809 drives the rotating gear 808 to rotate, causing the rotary pressing plate 801 to rotate downward to flatten the shredded paper. When the shredded paper is initially flattened, the telescopic driving rod 805 starts to shorten, driving the connecting frame 804 to move. Since the connecting frame 804 is fixedly connected to the base frame 803, the base frame 803 moves on the fixed rod 802, driving the rotary pressing plate 801 to move downward to press the flattened shredded paper. When the paper scraps in the pull-out box 2 are compacted and flattened and reach a certain amount, the operator pulls out the pull-out box 2 by pulling the armrest 3, takes out the compacted and flattened paper scraps as a whole and cleans them up. After cleaning, the pull-out box 2 is pushed back into the shredder body 1, and the equipment can continue to shred paper.

[0040] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A paper shredder with a paper scrap sweeping and crushing device, characterized in that: include: A shredder body (1), wherein a front panel of the shredder body (1) is provided with a rectangular hole, and a pull-out box (2) is movably connected inside the rectangular hole; A shredder opening (5) is fixedly connected to the top of the shredder body (1); A control panel (4) is fixedly connected to the top of the shredder body (1), and the control panel (4) is located behind the shredding opening (5); A power port (6) fixedly connected to one side of the shredder body (1); Two paper shredding cutters (10) are both arranged inside the paper shredder body (1), and the paper shredding cutters (10) are located below the paper shredding opening (5); A paper scrap adhesion blowing assembly (12) is arranged inside the paper shredder body (1), and the paper scrap adhesion blowing assembly (12) is located below the control panel (4). The paper scrap adhesion blowing assembly (12) is used to clean the scraps adhered to the paper shredder blade (10); The paper scrap compacting and spreading component (8) is arranged inside the pull-out box (2), and the paper scrap compacting and spreading component (8) is used to spread and compact the paper scraps.

2. A paper shredder with a paper scrap sweeping and crushing device according to claim 1, characterized in that: The paper scrap adhesion purge assembly (12) comprises: A fixed seat (1201) is fixedly connected to the inner wall of the shredder body (1) opposite to the power port (6), and a movable rod (1212) is movably connected to the front end of the fixed seat (1201); A rotating frame (1202) is fixedly connected to the outer side of the movable rod (1212); The blowing shell (1203) is fixedly connected to a side of the rotating frame (1202) away from the movable rod (1212), and a plurality of blowers (1213) are fixedly connected inside the blowing shell (1203).

3. A paper shredder with a paper scrap sweeping and crushing device according to claim 2, characterized in that: The paper scrap adhesion purge assembly (12) further comprises: A motor frame (1210) is fixedly connected to the inner side of the shredder body (1) away from the fixed seat (1201); a servo motor (1211) is fixedly connected to the inner side of the motor frame (1210); and a power output shaft of the servo motor (1211) is connected to a rotating rod (1209) via a coupling; The sector gear rod (1208) is fixedly connected to the outside of the rotating rod (1209); the outer side of the end of the movable rod (1212) away from the fixed seat (1201) is fixedly connected to the rotating gear (1207); the sector gear rod (1208) and the rotating gear (1207) are meshed through the tooth grooves; The debris blocking protection panel (1204) is fixedly connected to a side of the blowing housing (1203) away from the hair dryer (1213).

4. A paper shredder with a paper scrap sweeping and crushing device according to claim 3, characterized in that: Two movable springs (1205) are fixedly connected to both sides of the fixed seat (1201); one end of the movable spring (1205) away from the fixed seat (1201) is fixedly connected to a connecting seat (1206); and one side of the connecting seat (1206) located above is fixedly connected to the inner wall of the shredder body (1).

5. The paper shredder with a paper scrap sweeping and crushing device according to claim 1, characterized in that: The paper scraps compacting and laying component (8) comprises: A rotating pressing plate (801) is arranged inside the pull-out box (2); A bottom frame (803) is provided on one side of the rotating pressing plate (801), and a fixed plate (806) is fixedly connected to a side of the bottom frame (803) close to the rotating pressing plate (801); The connecting frame (804) is fixedly connected to the bottom end of the base frame (803), the bottom end of the connecting frame (804) is fixedly connected to a telescopic driving rod (805), and the bottom end of the telescopic driving rod (805) is fixedly connected to the inner bottom end of the pull-out box (2).

6. The paper shredder with a paper scrap sweeping and crushing device according to claim 5, characterized in that: The paper scraps compacting and paving assembly (8) further comprises: The linkage rod (807) is fixedly connected to the inner side of the rotating pressing plate (801) close to the connecting frame (804), and one end of the linkage rod (807) away from the connecting frame (804) is movably connected to the inner side of the fixed plate (806); The chute seat (810) is fixedly connected to a side of the base frame (803) close to the rotating pressing plate (801), and a circular hole is provided at the bottom end of the chute seat (810). An electric telescopic rod (811) is fixedly connected to the inside of the circular hole, and the bottom end of the electric telescopic rod (811) is fixedly connected to the top end of the connecting frame (804); The movable gear plate (809) is movably connected to the inner side of the slide seat (810), and the bottom end of the movable gear plate (809) is fixedly connected to the top end of the electric telescopic rod (811).

7. A paper shredder with a paper scrap sweeping and crushing device according to claim 6, characterized in that: The outer side of one end of the linkage rod (807) close to the movable gear plate (809) is fixedly connected to a rotating gear (808), and the rotating gear (808) and the movable gear plate (809) are engaged with each other through a tooth groove. A through hole is formed on the side of the base frame (803) away from the rotating gear (808), and a fixed rod (802) is slidably connected to the inside of the through hole.

8. The paper shredder with a paper scrap sweeping and crushing device according to claim 1, characterized in that: The front end of the pull-out box (2) is fixedly connected to a pull-out armrest (3); both sides of the inner wall of the shredder body (1) are connected to forward rollers (7) by rotation; the outer sides of the forward rollers (7) are fixedly connected to the inner sides of the shredder cutters (10) near the pull-out armrest (3); and both sides of the inner wall of the shredder body (1) are connected to reverse rollers (13) by rotation; the outer sides of the reverse rollers (13) are fixedly connected to the inner sides of the shredder cutters (10) away from the pull-out armrest (3).

9. The paper shredder with a paper scrap sweeping and crushing device according to claim 4, characterized in that: A side of the shredder body (1) close to the connecting seat (1206) is fixedly connected to a support platform (11), and a front side of the support platform (11) is fixedly connected to a side of the connecting seat (1206) below the rotating frame (1202).

10. The paper shredder with a paper scrap sweeping and crushing device according to claim 7, characterized in that: A fixing frame (9) is fixedly connected to the inner wall of the drawer box (2) on one side close to the rotating pressing plate (801), and the inner ends of the fixing frame (9) are fixedly connected to the two ends of the fixing rod (802).

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