Paper shredder with replaceable paper shredding cutter

Abstract

The utility model relates to the technical field of paper shredders, and discloses a paper shredder with a replaceable paper shredding cutter, which comprises a case, and a mounting frame is arranged at the top end in the case. According to the paper shredder with the replaceable paper shredding cutter, when the cutter breaks down, after a power source is switched off and a paper collecting box is pulled out, then a first locking rod can be screwed out from the interior of a first threaded hole, and two sets of second locking rods are screwed out from the interior of a second threaded hole; then a handle is pulled to turn over and open the side plate upwards by utilizing the hinge between the connecting feet and the interior of the connecting frame, meanwhile, the mounting frame can be taken out from the interior of the case, finally, the two groups of locking rings are screwed out from the exterior of the screw rod, and the power harness is pulled out from the interior of the threading hole. And the paper shredding module driving the first rotary cutter and the second rotary cutter can be separated from the side plate to be quickly disassembled and replaced, so that the problem that the paper shredding cutter in the paper shredder is inconvenient to replace conveniently is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of shredders, in particular to a shredder with replaceable shredding knives. Background Technique

[0002] A shredder is an office appliance with confidentiality and shredding functions. It mainly consists of a group of rotating blade knives, a paper comb and a driving component inside. After the document paper is put between the two groups of blade knives, the cutting knives rotate and use the sharp metal corners to shred the paper, and it is widely used.

[0003] However, in the actual use process of the shredder, the shredding knives are generally directly fixedly installed inside the shredder. When the internal shredding knives have jamming and damage faults, they cannot be quickly replaced, and the whole shredder needs to be disassembled for maintenance and replacement, which is time-consuming and laborious, and there are deficiencies. There is no measure to conveniently replace the internal shredding knives of the shredder.

[0004] Now, a new type of shredder with replaceable shredding knives is proposed to solve the above deficiencies. Content of the Utility Model

[0005] The purpose of the utility model is to provide a shredder with replaceable shredding knives to solve the problem of inconvenient replacement of the internal shredding knives of the shredder proposed in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A shredder with replaceable shredding knives, including a chassis, an installation frame is arranged at the top end inside the chassis, a first rotating knife is horizontally movably connected to the front end inside the installation frame, and a second rotating knife is horizontally connected to the rear end inside the installation frame;

[0007] A side groove is opened inside the right side of the chassis, and a side plate is arranged inside the side groove. Two ends of the top of the side plate are respectively fixedly connected with connecting feet, and two ends of the top right side of the chassis are respectively fixedly connected with connecting frames. The top and bottom ends of the side groove respectively penetrate through the top and bottom ends of the chassis. A connecting cover is welded and fixed to the right side of the installation frame, and two ends of the top and bottom of the right side of the connecting cover are respectively welded and fixed with screw rods. The right sides of the screw rods penetrate through the inside of the side plate, and a locking ring is threadedly rotated on the outside of the screw rods. A handle is installed and fixed at the bottom end of the right side of the side plate, and two ends of the bottom of the right side of the side plate are respectively provided with second locking rods. Two groups of second threaded holes are opened at the bottom end of the left side inside the side groove, a first locking rod is arranged at the top end of the left side of the chassis, a first threaded hole is opened inside the bottom end of the left side of the installation frame, and a wire passing hole is opened inside the rear end of the right side of the side plate.

[0008] Furthermore, the connecting pin is hinged to the inside of the connecting frame. The second locking rod penetrates through the inside of the side plate, and the first locking rod penetrates through the inside of the left side of the chassis. External threads are respectively provided on the outer parts of the first locking rod and the second locking rod.

[0009] Furthermore, the wire passing hole penetrates through the inside of the side plate and communicates with the inside of the chassis.

[0010] Preferably, a storage box is arranged at the rear end inside the chassis. Connecting bolts are respectively arranged through the top and bottom of both sides at the front end of the storage box. Mounting holes for cooperating with the connecting bolts are respectively arranged on both sides at the rear end inside the chassis. A through hole is provided inside the front end of the storage box. Activated carbon particles are filled inside the storage box. A cover plate is arranged at the top end of the storage box.

[0011] Furthermore, the through hole penetrates through the inside of the front end of the storage box and communicates with the inside of the storage box. Plug rods are respectively fixed at the four corners at the bottom end of the cover plate. Slot holes are respectively arranged inside the four corners at the top end of the storage box.

[0012] Preferably, a fixing frame is arranged at the top end of the chassis. A connecting plate is welded and fixed at the bottom end outside the fixing frame. Mounting bolts are respectively arranged on both sides at the top end of the connecting plate and penetrate through the inside of the connecting plate. Threaded holes for cooperating with the mounting bolts are respectively arranged inside both sides at the top end of the chassis. A paper feeding groove is provided inside the top end of the chassis. The fixing frame communicates with the inside of the paper feeding groove.

[0013] Preferably, the right sides of the first rotary knife and the second rotary knife respectively penetrate through the right side of the mounting frame. Driving gears are fixedly connected to the right sides outside the first rotary knife and the second rotary knife, and are meshed with each other. A second toothed wheel is fixedly connected to the right side outside the second rotary knife. A driving motor is fixedly connected to the right side at the rear end of the mounting frame, and a first toothed wheel is fixedly connected to the output end of the driving motor. A toothed belt is arranged outside the first toothed wheel and the second toothed wheel. The toothed belt penetrates through the inside of the rear end of the connecting cover. A power wire harness is arranged on the driving motor and penetrates through the inside of the wire passing hole.

[0014] Preferably, an inner groove is provided inside the front end of the chassis, and a paper collection box is inserted into the inside of the inner groove. A pull handle is fixedly connected to the front end of the paper collection box.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: The shredder with replaceable shredding knives not only realizes convenient replacement of the shredding knives inside the shredder, achieves moisture-proof protection for the inside of the shredder, but also realizes convenient auxiliary lifting during paper shredding.

[0016] (1) By setting up a chassis, a mounting frame, a first locking rod, a first threaded hole, a connecting frame, a connecting foot, a side plate, a screw rod, a locking ring, a connecting cover, a handle, a second locking rod, a side groove, a wire passing hole, a connecting cover and a second threaded hole, the first rotating blade and the second rotating blade inside the shredder are driven by a driving motor to rotate inward simultaneously to shred paper. When faults such as rotation jamming and damage occur to the first rotating blade and the second rotating blade, after disconnecting the power supply of the power cable bundle and pulling out the paper collection box forward, then the first locking rod can be screwed outwards from the inside of the first threaded hole at the top end on the left side of the chassis, and the two groups of second locking rods can be screwed out from the inside of the second threaded hole to unlock the side plate inside the side groove. Then, the handle can be pulled to turn up the side plate hinged inside the connecting frame by the connecting foot. When turning it up, the mounting frame can be taken out from the inside of the chassis. Finally, by screwing out the two groups of locking rings from the outside of the screw rod and pulling out the power cable bundle from the inside of the wire passing hole, the shredding module driving the first rotating blade and the second rotating blade can be separated from the side plate for quick disassembly. After that, replace the shredding tool module with normal operation and reinstall it. After powering on and opening, the shredding operation can continue, improving the shredding operation efficiency and facilitating the convenient replacement of the shredding tool inside the shredder;

[0017] (2) By setting up a chassis, a storage box, a through hole, a cover plate, a connecting bolt and activated carbon particles, when the shredder is in use, the storage box filled with activated carbon particles can be fixedly installed at the rear position inside the chassis using the connecting bolt. When the shredder is in use, the activated carbon particles filled inside can communicate with the air inside the chassis through the through hole, and can adsorb some moisture in the air inside the chassis to keep it dry, reducing the corrosion of metal parts inside the shredder and the damp failure of electromechanical components. At the same time, it can adsorb and purify some odors generated by the internal paper;

[0018] (3) By setting up a chassis, a paper feeding slot, a mounting bolt, a fixing frame and a connecting plate, when the shredder is in use, a fixing frame is fixedly installed above the paper feeding slot at the top of the chassis. When shredding some long document papers, the paper can be stuffed into the inside of the fixing frame, and the fixing frame can support the paper for auxiliary lifting, reducing the situation of unsmooth paper feeding caused by the bending of the paper itself during shredding. Description of the Drawings

[0019] Figure 1 is the front view sectional structure schematic diagram of the present utility model;

[0020] Figure 2 is the top view partial sectional structure schematic diagram of the chassis of the present utility model;

[0021] Figure 3 is the side view structure schematic diagram of the side groove of the present utility model;

[0022] Figure 4 This is a schematic side top view structure diagram of the fixing frame of the present utility model.

[0023] In the figure: 1, chassis; 2, paper collection box; 3, storage box; 4, through hole; 5, cover plate; 6, installation frame; 7, first locking rod; 8, first threaded hole; 9, paper feeding slot; 10, installation bolt; 11, fixing frame; 12, connecting plate; 13, connecting frame; 14, connecting foot; 15, side plate; 16, screw rod; 17, locking ring; 18, connecting cover; 19, first rotary cutter; 20, connecting bolt; 21, handle; 22, second locking rod; 23, activated carbon particles; 24, drive motor; 25, power cable bundle; 26, side slot; 27, wire threading hole; 28, first toothed wheel; 29, toothed belt; 30, second toothed wheel; 31, inner slot; 32, transmission gear; 33, second rotary cutter; 34, second threaded hole. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment 1: Please refer to Figures 1-4 , a paper shredder with replaceable shredding cutters, including a chassis 1, an installation frame 6 is arranged at the top end inside the chassis 1, a first rotary cutter 19 is horizontally movably connected to the front end inside the installation frame 6, and a second rotary cutter 33 is horizontally connected to the rear end inside the installation frame 6;

[0026] A side slot 26 is opened inside the right side of the chassis 1, and a side plate 15 is arranged inside the side slot 26. Connecting feet 14 are respectively fixedly connected to both ends of the top of the side plate 15. Connecting frames 13 are respectively fixedly connected to both ends of the right side of the top of the chassis 1. The top and bottom of the side slot 26 respectively penetrate through the top and bottom of the chassis 1. A connecting cover 18 is welded and fixed to the right side of the installation frame 6, and screw rods 16 are respectively welded and fixed to the top and bottom of the right side of the connecting cover 18. The right side of the screw rod 16 penetrates through the inside of the side plate 15. A locking ring 17 is threadedly rotated on the outside of the screw rod 16. A handle 21 is installed and fixed to the bottom end of the right side of the side plate 15. Second locking rods 22 are respectively arranged at both ends of the bottom of the right side of the side plate 15. Two groups of second threaded holes 34 are opened at the bottom end of the left side inside the side slot 26. A first locking rod 7 is arranged at the top end of the left side of the chassis 1. A first threaded hole 8 is opened inside the bottom end of the left side of the installation frame 6. A wire threading hole 27 is opened inside the rear end of the right side of the side plate 15;

[0027] The connecting foot 14 is internally hinged to the connecting frame 13. The second locking rod 22 passes through the inside of the side plate 15. The first locking rod 7 passes through the inside of the left side of the chassis 1. External threads are respectively provided on the outer parts of the first locking rod 7 and the second locking rod 22. The wire passing hole 27 passes through the inside of the side plate 15 and communicates with the inside of the chassis 1.

[0028] Specifically, as Figures 1-3 shown, when faults such as rotational jamming and damage occur to the first rotary cutter 19 and the second rotary cutter 33, after disconnecting the power supply of the power wire harness 25 and pulling the paper collection box 2 forward, then the first locking rod 7 can be externally screwed out from the inside of the first threaded hole 8 at the top of the left side of the chassis 1, and the two groups of second locking rods 22 can be screwed out from the inside of the second threaded hole 34 to unlock the side plate 15 inside the side groove 26. Then, the handle 21 can be pulled to turn the side plate 15 upward and open it by the hinge inside the connecting frame 13 with the connecting foot 14. When opening, the mounting frame 6 can be taken out from the inside of the chassis 1. Finally, after screwing out the two groups of locking rings 17 from the outside of the screw rod 16 and pulling out the power wire harness 25 from the inside of the wire passing hole 27, the shredding module driving the first rotary cutter 19 and the second rotary cutter 33 can be separated from the side plate 15 for quick disassembly. After that, replace it with a working shredding tool module, reinstall it, power it on and open it, and then the shredding operation can continue.

[0029] Embodiment 2: A storage box 3 is arranged at the rear end inside the chassis 1. Connecting bolts 20 are respectively arranged through the top and bottom of both sides at the front end of the storage box 3. Mounting holes for cooperating with the connecting bolts 20 are respectively arranged on both sides at the rear end inside the chassis 1. A through hole 4 is opened inside the front end of the storage box 3. Activated carbon particles 23 are filled inside the storage box 3. A cover plate 5 is arranged at the top of the storage box 3. The through hole 4 passes through the inside of the front end of the storage box 3 and communicates with the inside of the storage box 3. Plug rods are respectively fixed at the four corners at the bottom end of the cover plate 5. Slots are respectively opened inside the four corners at the top of the storage box 3.

[0030] Specifically, as Figure 1 and Figure 2 shown, the storage box 3 filled with activated carbon particles 23 can be fixedly installed at the rear end position inside the chassis 1 using the connecting bolts 20. When the shredder is in use, the activated carbon particles 23 filled inside can communicate with the air inside the chassis 1 through the through hole 4, and can adsorb some moisture in the air inside the chassis 1 to keep the inside dry. At the same time, it can adsorb and purify some odors generated by the internal paper.

[0031] Embodiment 3: A fixing frame 11 is provided at the top end of the chassis 1, and a connecting plate 12 is welded and fixed to the bottom end outside the fixing frame 11. Installation bolts 10 are respectively provided on both sides of the top end of the connecting plate 12, and the installation bolts 10 penetrate through the inside of the connecting plate 12. Screw holes for mating installation with the installation bolts 10 are respectively formed in the inner parts on both sides of the top end of the chassis 1. A paper feed slot 9 is formed in the inside of the top end of the chassis 1, and the fixing frame 11 is communicated with the inside of the paper feed slot 9;

[0032] Specifically, as Figure 1 and Figure 4 shown, a fixing frame 11 is installed and fixed above the paper feed slot 9 at the top of the chassis 1. When shredding some long document papers, the papers can be inserted into the inside of the fixing frame 11, and the fixing frame 11 can assist in lifting and supporting the papers to make the vertical paper feeding smooth.

[0033] The right sides of the first rotary knife 19 and the second rotary knife 33 respectively penetrate through the right side of the installation frame 6. Transmission gears 32 are fixedly connected to the outside right sides of the first rotary knife 19 and the second rotary knife 33, and the transmission gears 32 are meshed with each other. A second toothed wheel 30 is fixedly connected to the outside right side of the second rotary knife 33. A drive motor 24 is fixedly connected to the right side of the rear end of the installation frame 6, and a first toothed wheel 28 is fixedly connected to the output end of the drive motor 24. A toothed belt 29 is installed outside the first toothed wheel 28 and the second toothed wheel 30, and the toothed belt 29 penetrates through the inside of the rear end of the connection cover 18. A power cord bundle 25 is provided on the drive motor 24, and the power cord bundle 25 penetrates through the inside of the wire passing hole 27. An inner slot 31 is formed in the inside of the front end of the chassis 1, and a paper collection box 2 is inserted into the inside of the inner slot 31. A pull handle is fixedly connected to the front end of the paper collection box 2.

[0034] Working principle: When the present utility model is in use, the driving motor 24 starts to drive the first toothed wheel 28 to rotate. The first toothed wheel 28 can drive the second toothed wheel 30 to rotate by means of a toothed belt 29. The rotation of the second toothed wheel 30 can drive the second rotary knife 33 to rotate. The rotation of the second rotary knife 33 drives the first rotary knife 19 to rotate relatively by means of the meshing transmission gear 32. The first rotary knife 19 and the second rotary knife 33 rotate inwards simultaneously to shred and tear the paper. When faults such as rotation jamming and damage occur to the first rotary knife 19 and the second rotary knife 33, after disconnecting the power supply of the power cable bundle 25 and pulling out the paper collection box 2 forward, then the first locking rod 7 can be screwed outwards from the inside of the first threaded hole 8 at the top end of the left side of the chassis 1, and the two groups of second locking rods 22 can be screwed out from the inside of the second threaded hole 34 to unlock the side plate 15 inside the side groove 26. Then, the handle 21 can be pulled to turn the side plate 15 upwards and open it by means of the hinge inside the connecting frame 13 through the connecting feet 14. When opening, the mounting frame 6 can be taken out from the inside of the chassis 1. Finally, after screwing out the two groups of locking rings 17 from the outside of the screw rod 16 and pulling out the power cable bundle 25 from the inside of the wire passing hole 27, the shredding module driving the first rotary knife 19 and the second rotary knife 33 can be separated from the side plate 15 for quick disassembly. After that, replace the shredding tool module with normal working condition and reinstall it. After powering on and opening, the shredding operation can be continued. At the same time, when the shredder is in use, the storage box 3 filled with activated carbon particles 23 can be fixedly installed at the rear end position inside the chassis 1 by means of the connecting bolt 20. When the shredder is in use, the filled activated carbon particles 23 inside can communicate with the air inside the chassis 1 through the through holes 4, and can adsorb some moisture in the air inside the chassis 1 to keep the inside dry. At the same time, it can also adsorb and purify some odors generated by the internal paper. And a fixing frame 11 is fixedly installed above the paper feeding slot 9 at the top of the chassis 1. When shredding some long document papers, the papers can be stuffed into the inside of the fixing frame 11, and the fixing frame 11 can assist in vertically lifting and supporting the papers, so that they can be fed smoothly for shredding.

[0035] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A paper shredder with replaceable shredding knives, comprising a chassis (1), characterized in that: At the top inside the chassis (1), there is an installation frame (6). Horizontally movably connected to the front end inside the installation frame (6) is a first rotary knife (19), and horizontally connected to the rear end inside the installation frame (6) is a second rotary knife (33). Inside the right side of the chassis (1), there is a side groove (26). Inside the side groove (26), there is a side plate (15). At both ends of the top of the side plate (15), there are respectively fixedly connected connecting feet (14). At both ends of the right side of the top of the chassis (1), there are respectively fixedly connected connecting frames (13). The top and bottom of the side groove (26) respectively penetrate through the top and bottom of the chassis (1). On the right side of the installation frame (6), there is a connecting cover (18) welded and fixed. At the top and bottom of the right side of the connecting cover (18), there are respectively welded and fixed screw rods (16). The right side of the screw rod (16) penetrates through the inside of the side plate (15). Threadedly rotatably connected to the outside of the screw rod (16) is a locking ring (17). At the bottom of the right side of the side plate (15), there is a handle (21) installed and fixed. At both ends of the bottom of the right side of the side plate (15), there are respectively provided second locking rods (22). At the bottom of the left side inside the side groove (26), there are two groups of second threaded holes (34) opened. At the top of the left side of the chassis (1), there is a first locking rod (7). Inside the bottom end of the left side of the installation frame (6), there is a first threaded hole (8). Inside the rear end of the right side of the side plate (15), there is a wire passing hole (27).

2. The paper shredder with replaceable paper shredding blades according to claim 1, characterized in that: The connecting feet (14) are hingedly connected inside the connecting frames (13). The second locking rods (22) penetrate through the inside of the side plate (15). The first locking rod (7) penetrates through the inside of the left side of the chassis (1). External threads are respectively provided on the outside of the first locking rod (7) and the second locking rods (22).

3. A paper shredder with replaceable shredding blades according to claim 1, characterized in that: The wire passing hole (27) penetrates through the inside of the side plate (15) and is communicated with the inside of the chassis (1).

4. A paper shredder having a replaceable paper shredding cutter according to claim 1, characterized in that: At the rear end inside the chassis (1), there is a storage box (3). At the top and bottom of both sides of the front end of the storage box (3), there are respectively penetrated and provided connecting bolts (20). On both sides of the rear end inside the chassis (1), there are respectively provided installation holes for cooperating with the connecting bolts (20). Inside the front end of the storage box (3), there is a through hole (4). Inside the storage box (3), there are filled activated carbon particles (23). At the top of the storage box (3), there is a cover plate (5).

5. The paper shredder with replaceable shredding blades according to claim 4, characterized in that: The through hole (4) penetrates through the inside of the front end of the storage box (3) and is communicated with the inside of the storage box (3). At the four corners of the bottom end of the cover plate (5), there are respectively fixed insertion rods. Inside the four corners of the top of the storage box (3), there are respectively opened insertion slots.

6. A paper shredder with replaceable shredding blades according to claim 1, characterized in that: A fixing frame (11) is provided at the top of the chassis (1), and a connecting plate (12) is fixedly welded to the bottom end outside the fixing frame (11). Installation bolts (10) are respectively arranged on both sides of the top end of the connecting plate (12), and the installation bolts (10) penetrate through the inside of the connecting plate (12). Screw holes for mating installation with the installation bolts (10) are respectively formed in the inner parts on both sides of the top end of the chassis (1). A paper feeding groove (9) is formed in the inside of the top end of the chassis (1), and the fixing frame (11) communicates with the inside of the paper feeding groove (9).

7. A paper shredder having a replaceable paper shredding cutter according to claim 1, characterized in that: The right sides of the first rotary knife (19) and the second rotary knife (33) respectively penetrate through the right side of the installation frame (6). Transmission gears (32) are fixedly connected to the outer right sides of the first rotary knife (19) and the second rotary knife (33), and the transmission gears (32) are meshed with each other. A second toothed wheel (30) is fixedly connected to the outer right side of the second rotary knife (33). A driving motor (24) is fixedly connected to the right side of the rear end of the installation frame (6), and a first toothed wheel (28) is fixedly connected to the output end of the driving motor (24). A toothed belt (29) is installed outside the first toothed wheel (28) and the second toothed wheel (30), and the toothed belt (29) penetrates through the inside of the rear end of the connection cover (18). A power cord bundle (25) is arranged on the driving motor (24), and the power cord bundle (25) penetrates through the inside of the wire passing hole (27).

8. A paper shredder with replaceable shredding blades according to claim 1, characterized in that: An inner groove (31) is formed in the inside of the front end of the chassis (1), and a paper collection box (2) is inserted into the inside of the inner groove (31). A pull handle is fixedly connected to the front end of the paper collection box (2).

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