Low-noise paper shredder with novel noise reduction structure
By designing a new noise reduction structure in the shredder, using electric guide rollers and cylinder technology to isolate noise, and dipping paper with dyes, the problems of heavy noise and paper confetti management of the shredder are solved, achieving the effect of low noise and high-efficiency paper processing.
Patent Information
- Application Number
- CN202421810972.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-07-30
AI Technical Summary
The existing shredders are noisy, affecting the working environment, and long-term use may damage the physical and mental health of office workers.
A low-noise shredder with a new noise reduction structure is designed. By movably assembled electric guide rollers between the sides of the slider, the noise from the cutting paper from the front and rear crushing rollers isolates the noise from the cutting paper to the outside, and the slider and electric guide rollers are moved through the cylinder to hide the noise deep in the main shell.
It realizes reducing shredder noise, closing the shredded paper channel, and dipping the paper with dye to prevent debris from flying and splicing the paper with others.
Smart Images
Figure CN222956541U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of office shredders, and particularly relates to a low-noise shredder with a novel noise reduction structure. Background Art
[0002] A shredder is a common office tool for confidentiality. Inside the device housing, there are oppositely rotating cutting blades that can cut whole pieces of paper into strips or powder, preventing papers with confidential information from falling into the hands of others and thus avoiding the leakage of commercial and engineering secrets.
[0003] In the past, the shredder had a paper feed slot at the top. As long as the paper was inserted longitudinally into the machine, the rotating blade roller shaft could refine the paper. However, the startup of motors and other components was likely to generate a large amount of noise, which could easily affect the surrounding working environment and also damage the physical and mental health of office workers after long-term use.
[0004] Now, a novel low-noise shredder with a novel noise reduction structure is proposed to solve the above problems. Content of the Utility Model
[0005] The purpose of the utility model is to provide a low-noise shredder with a novel noise reduction structure to solve the problem of large noise of the shredder proposed in the above background art.
[0006] To achieve the above purpose, the utility model provides the following technical solution: A low-noise shredder with a novel noise reduction structure, including a main housing and a storage housing. The storage housing is welded to the top of the main housing. A frosted sheet is pasted on the inner wall of the front end of the storage housing. Transverse chutes are respectively arranged inside both sides of the storage housing. Cylinders are respectively assembled at the rear of both sides of the storage housing, and a piston rod of the cylinder is fixed with a slider at the front end. An electric guide roller is movably assembled between the sides of the slider. A rectangular groove is transversely arranged between the main housing and the storage housing. A cover plate is hinged to the right side of the top of the storage housing, and a sealing ring is fixed around the edge of the bottom of the cover plate. A paper feed slot is arranged between the two sides of the top of the storage housing.
[0007] Preferably, the electric guide roller and the frosted sheet are on the same horizontal plane, and the slider can pull the electric guide roller to move back and forth along the chute.
[0008] Preferably, a front crushing roller shaft is transversely assembled at the front end above the inside of the main housing, and a first gear disk is welded to the right side of the front crushing roller shaft. A rear crushing roller shaft is transversely assembled at the rear end above the inside of the main housing. A second gear disk is welded to the right side of the rear crushing roller shaft. A motor is assembled at the rear of the outside of the right side of the main housing.
[0009] Preferably, the rotating shaft of the motor is fixedly connected to the rear crushing roller shaft, and the rear crushing roller shaft has the same diameter as the front crushing roller shaft.
[0010] Preferably, grooves are respectively arranged at the front and rear ends of the rectangular groove, and a baffle is movably inserted between the groove and the rectangular groove. Transmission chambers are respectively arranged between the front and rear of both sides of the bottom of the storage housing, and a lead screw is assembled between the front and rear inside the transmission chamber. Sleeve is sleeved on the front and rear ends of the outside of the lead screw respectively, and a baffle is movably connected between one sides of the sleeves. A rotating groove is arranged behind the transmission chamber.
[0011] Preferably, the rear of the lead screw is embedded in the rotating groove, and the sleeve can horizontally slide along the symmetric threads outside the lead screw.
[0012] Preferably, a notch is arranged below the right side of the main housing, and a connecting frame is movably inserted in the notch. A pull rod is welded to the right side of the connecting frame. A liquid tank is fixed to the left side of the connecting frame, and a sieve basket is lapped in the liquid tank. A dyeing agent is contained in the liquid tank.
[0013] Preferably, the pull rod can guide the connecting frame and the liquid tank to slide left and right, and the sieve basket can slide up and down along the inner wall of the liquid tank.
[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: The low-noise paper shredder with a novel noise reduction structure not only reduces the noise of the paper shredder, closes the paper shredding channel, but also realizes the impregnation of paper.
[0015] (1) By movably assembling an electric guide roller between the sides of the slider, opening the cover plate hinged to the top of the storage housing, inserting a stack of papers into the storage housing and placing them between the electric guide roller and the abrasive sheet, then closing the cover plate, and strengthening and wrapping with a sealing ring sleeved outside the paper feeding slot to isolate the noise generated by the front crushing roller shaft and the rear crushing roller shaft from shredding the paper to the outside. Then, use the cylinders on the rear sides to move the slider and the electric guide roller back and forth through the piston rods. As the electric guide roller rotates, the paper is continuously conveyed through the rectangular groove to be crushed, avoiding direct contact between the paper and the crushing mechanism, and then hiding the noise deep in the main housing.
[0016] (2) By horizontally arranging a rectangular groove between the main housing and the storage housing, after the crushing is completed, turn the lead screw in the transmission chamber from the rotating groove at the rear to guide the sleeves sleeved on the front and rear ends of the lead screw to slide towards each other, so as to take out the baffle from the groove or retract the baffle into the groove, achieving the purpose of closing or opening the rectangular groove and preventing the stored paper scraps and paper residues from being exported from the storage housing.
[0017] (3) By fixing a liquid tank on the left side of the connecting frame, first put the sieve basket with leakage holes into the liquid tank, then pour the stainable liquid into the liquid tank, and horizontally push the pull rod and the connecting frame along the notch, forcing the open end of the liquid tank to be set at the bottom between the front crushing roller shaft and the rear crushing roller shaft. When the motor guides the rear crushing roller shaft to rotate and drives the front crushing roller shaft to crush the paper through the engagement of the first gear disc and the second gear disc, collect the paper scraps and dye them, which can not only avoid the flying of scraps but also prevent others from splicing the paper. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a front view sectional structure schematic diagram of the present utility model;
[0019] Figure 2 is a top view sectional structure schematic diagram of the storage housing of the present utility model;
[0020] Figure 3 is a top view sectional structure schematic diagram of the rectangular groove of the present utility model;
[0021] Figure 4 is a front view sectional structure schematic diagram of the main housing of the present utility model;
[0022] Figure 5 is a top view structure schematic diagram of the rear crushing roller shaft of the present utility model.
[0023] In the figure: 1, main housing; 2, motor; 3, front crushing roller shaft; 4, storage housing; 5, electric guiding roller; 6, sealing ring; 7, cover plate; 8, paper feeding groove; 9, rectangular groove; 10, first gear disc; 11, rear crushing roller shaft; 12, pull rod; 13, notch; 14, connecting frame; 15, liquid tank; 16, sieve basket; 17, dye; 18, cylinder; 19, sliding groove; 20, slider; 21, abrasive sheet; 22, baffle; 23, rotating groove; 24, transmission chamber; 25, lead screw; 26, sleeve; 27, groove; 28, second gear disc. DETAILED DESCRIPTION OF THE 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 making creative efforts shall fall within the protection scope of the present utility model.
[0025] Embodiment 1: Please refer to Figures 1-5, A low-noise paper shredder with a new noise reduction structure, including a main housing 1 and a storage housing 4. The top of the main housing 1 is welded with the storage housing 4. A frosting sheet 21 is pasted on the inner wall of the front end of the storage housing 4. Horizontal chutes 19 are respectively arranged inside both sides of the storage housing 4. Cylinders 18 are respectively assembled at the rear of both sides of the storage housing 4, and the front end of the piston rod of the cylinder 18 is fixed with a slider 20. An electric guide roller 5 is movably assembled between the sides of the slider 20. A rectangular groove 9 is horizontally arranged between the main housing 1 and the storage housing 4. The right side of the top of the storage housing 4 is hinged with a cover plate 7, and a sealing ring 6 is fixed around the edge of the bottom of the cover plate 7. A paper feed slot 8 is arranged between the two sides of the top of the storage housing 4. The electric guide roller 5 and the frosting sheet 21 are on the same horizontal plane, and the slider 20 can pull the electric guide roller 5 to move back and forth along the chute 19;
[0026] At the front end above the interior of the main housing 1, a front crushing roller shaft 3 is horizontally assembled, and a first gear disk 10 is welded on the right side of the front crushing roller shaft 3. At the rear end above the interior of the main housing 1, a rear crushing roller shaft 11 is horizontally assembled, and a second gear disk 28 is welded on the right side of the rear crushing roller shaft 11. A motor 2 is assembled at the rear of the outside of the right side of the main housing 1, and the rotating shaft of the motor 2 is fixedly connected to the rear crushing roller shaft 11. The rear crushing roller shaft 11 and the front crushing roller shaft 3 have the same diameter;
[0027] Specifically, as Figure 1 , Figure 2 and Figure 5 shown, open the cover plate 7 hinged on the top of the storage housing 4, insert the stack of papers into the storage housing 4, between the electric guide roller 5 and the frosting sheet 21, and then close the cover plate 7. Use the sealing ring 6 sleeved outside the paper feed slot 8 to implement reinforcement and wrapping, isolate the noise of shredding papers by the front crushing roller shaft 3 and the rear crushing roller shaft 11 from being transmitted to the outside, and then use the cylinders 18 on both rear sides to move the slider 20 and the electric guide roller 5 back and forth through the piston rod to guide the papers into the main housing 1 for crushing.
[0028] Embodiment 2: Grooves 27 are respectively arranged at the front and rear ends of the rectangular groove 9, and a baffle 22 is movably inserted between the groove 27 and the rectangular groove 9. Transmission chambers 24 are respectively arranged between the front and rear of both sides of the bottom of the storage housing 4, and a lead screw 25 is assembled between the front and rear inside the transmission chamber 24. Sleeve 26 is respectively sleeved at the front and rear ends of the outside of the lead screw 25, and a baffle 22 is movably connected between the sides of the sleeve 26. A rotating groove 23 is arranged at the rear of the transmission chamber 24, and the rear of the lead screw 25 is embedded in the rotating groove 23. The sleeve 26 can slide horizontally along the symmetric threads outside the lead screw 25;
[0029] Specifically, as Figure 1 and Figure 3As shown, after the crushing is completed, turn the lead screw 25 located in the transmission chamber 24 from the rear spiral groove 23, and guide the bushings 26 sleeved on the front and rear ends of the lead screw 25 to slide towards each other, so as to take out the baffle 22 from the groove 27, or retract the baffle 22 into the groove 27, achieving the purpose of closing or opening the rectangular groove 9 and preventing foreign objects from falling into the interior of the main housing 1.
[0030] Embodiment 3: A notch 13 is provided below the right side of the main housing 1, and a connecting frame 14 is movably inserted into the notch 13. A pull rod 12 is welded to the right side of the connecting frame 14, and a liquid tank 15 is fixed to the left side of the connecting frame 14. A sieve basket 16 is lapped in the liquid tank 15, and a dyeing agent 17 is contained in the liquid tank 15. The pull rod 12 can guide the connecting frame 14 and the liquid tank 15 to slide left and right, and the sieve basket 16 can slide up and down along the inner wall of the liquid tank 15.
[0031] Specifically, as Figure 1 、 Figure 4 and Figure 5 shown, first place the sieve basket 16 with leakage holes into the liquid tank 15, then pour the stainable liquid into the liquid tank 15, and horizontally push the pull rod 12 and the connecting frame 14 along the notch 13, forcing the open end of the liquid tank 15 to be set at the bottom between the front crushing roller shaft 3 and the rear crushing roller shaft 11. When the motor 2 guides the rear crushing roller shaft 11 to rotate and drives the front crushing roller shaft 3 to crush the paper through the engagement of the first gear disk 10 and the second gear disk 28, the paper scraps are collected and dyed.
[0032] Working principle: When the present utility model is in use, first open the cover plate 7 hinged to the top of the storage housing 4, insert the stack of papers into the storage housing 4, between the electric guide roller 5 and the abrasive sheet 21, and then close the cover plate 7, and use the sealing ring 6 sleeved outside the paper feeding slot 8 to implement reinforced wrapping to isolate the noise generated by the front crushing roller shaft 3 and the rear crushing roller shaft 11 from shredding the paper from being transmitted to the outside. Then use the cylinders 18 on both sides at the rear to move the slider 20 and the electric guide roller 5 back and forth through the piston rods, continuously convey the paper to pass through the rectangular groove 9 for crushing. Pre-place the sieve basket 16 with leakage holes into the liquid tank 15, then pour the stainable liquid into the liquid tank 15, and horizontally push the pull rod 12 and the connecting frame 14 along the notch 13, forcing the open end of the liquid tank 15 to be set at the bottom between the front crushing roller shaft 3 and the rear crushing roller shaft 11. When the motor 2 guides the rear crushing roller shaft 11 to rotate and drives the front crushing roller shaft 3 to crush the paper through the engagement of the first gear disk 10 and the second gear disk 28, the paper scraps are collected and dyed. After the crushing is completed, turn the lead screw 25 located in the transmission chamber 24 from the rear spiral groove 23, and guide the bushings 26 sleeved on the front and rear ends of the lead screw 25 to slide towards each other, so as to take out the baffle 22 from the groove 27, or retract the baffle 22 into the groove 27, achieving the purpose of closing or opening the rectangular groove 9 and preventing the paper scraps and paper residues stored inside from being exported from the storage housing 4.
[0033] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. 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 embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.
Claims
1. A low-noise paper shredder with a novel noise reduction structure, comprising a main housing (1) and a storage housing (4), characterized in that: A storage shell (4) is welded to the top of the main shell (1), a frosted sheet (21) is pasted on the inner wall of the front end of the storage shell (4), and slide grooves (19) are arranged transversely inside the two sides of the storage shell (4), and cylinders (18) are respectively installed at the rear of the two sides of the storage shell (4), and a slider (20) is fixed to the front end of the piston rod of the cylinder (18), and an electric guide roller (5) is movably installed between the sides of the slider (20), and a rectangular groove (9) is arranged transversely between the main shell (1) and the storage shell (4), and a cover plate (7) is hinged on the right side of the top of the storage shell (4), and a sealing ring (6) is fixed around the edge of the bottom of the cover plate (7), and a paper feed slot (8) is arranged between the two sides of the top of the storage shell (4).
2. A low-noise paper shredder with a novel noise reduction structure according to claim 1, characterized in that: The electric guide roller (5) and the sanding sheet (21) are located at the same horizontal plane, and the slider (20) can pull the electric guide roller (5) to move forward and backward along the slide groove (19).
3. A low noise paper shredder with a novel noise reduction structure according to claim 1, characterized in that: A front crushing roller shaft (3) is transversely mounted at the front end above the interior of the main shell (1), and a toothed disc 1 (10) is welded to the right side of the front crushing roller shaft (3). A rear crushing roller shaft (11) is transversely mounted at the rear end above the interior of the main shell (1), and a toothed disc 2 (28) is welded to the right side of the rear crushing roller shaft (11). A motor (2) is mounted at the rear of the right side of the main shell (1).
4. A low noise paper shredder with a novel noise reduction structure according to claim 3, characterized in that: The rotating shaft of the motor (2) is fixedly connected to the rear crushing roller shaft (11), and the diameter of the rear crushing roller shaft (11) is the same as that of the front crushing roller shaft (3).
5. The low-noise paper shredder with a novel noise reduction structure according to claim 1, characterized in that: The front and rear ends of the rectangular groove (9) are respectively provided with grooves (27), and a baffle (22) is movably inserted between the groove (27) and the rectangular groove (9); transmission chambers (24) are respectively provided between the front and rear ends of the bottom of the storage shell (4), and a screw rod (25) is installed between the front and rear ends of the transmission chamber (24); the front and rear ends of the screw rod (25) are respectively sleeved with shaft sleeves (26), and a baffle (22) is movably connected between one side of the shaft sleeve (26); and a rotary groove (23) is provided at the rear of the transmission chamber (24).
6. A low-noise paper shredder with a novel noise reduction structure according to claim 5, characterized in that: The rear of the screw rod (25) is embedded in the rotation groove (23), and the sleeve (26) can slide horizontally along the symmetrical threads outside the screw rod (25).
7. The low-noise paper shredder with a novel noise reduction structure according to claim 1, characterized in that: A notch (13) is provided at the lower part of the right side of the main shell (1), and a connecting frame (14) is movably inserted in the notch (13), a pull rod (12) is welded to the right side of the connecting frame (14), a liquid box (15) is fixed to the left side of the connecting frame (14), and a sieve basket (16) is overlapped in the liquid box (15), and a dye (17) is contained in the liquid box (15).
8. A low-noise paper shredder with a novel noise reduction structure according to claim 7, characterized in that: The pull rod (12) can guide the connecting frame (14) and the liquid box (15) to slide left and right, and the screen basket (16) can slide up and down along the inner wall of the liquid box (15).