Low-noise paper shredder with protective structure

Abstract

The utility model discloses a low-noise paper shredder with a protective structure, which comprises a casing, a cover is clamped at the top end of the casing, a paper inlet is fixedly communicated with the middle of the cover, an infrared switch is fixedly mounted on one side of the inner wall of the paper inlet, and rotating shafts are rotatably connected to two sides of the top inside the casing through bearings. A side shell is fixedly connected to the top of the side wall of the machine shell, a motor is fixedly installed at the end, away from one side of the machine shell, of the side shell, a sound absorption cotton pad is fixedly connected to the top in the machine shell, a door cover is hinged to the bottom of the front face of the machine shell, and a photoelectric switch is fixedly installed on one side of the bottom of the inner wall of the machine shell. According to the low-noise paper shredder with the protection structure, the paper shredder has better safety, the hands of a user are prevented from being damaged by the rotating cutter head, the noise is low during working, the machine cover can be quickly disassembled, blocked shredded paper can be conveniently cleaned, and the cutter head assembly can be conveniently maintained.

Description

Technical Field

[0001] The utility model relates to the technical field of paper shredders, in particular to a low-noise paper shredder with a protective structure. Background Art

[0002] A shredder is a device used to cut items such as paper into small pieces or strips.

[0003] Paper shredders are mainly used to destroy confidential information such as documents and materials to prevent information leakage, but existing paper shredders have the following disadvantages:

[0004] (1) The existing shredders have poor safety protection. When operating, users can easily put their hands into the shredder from the paper inlet or paper outlet, and contact with the rotating blade disc can cause injuries. In addition, the body is prone to vibration and is not stable during operation.

[0005] (2) When a paper jam occurs in an existing paper shredder, it is inconvenient to clean the jammed paper and maintain the cutter disc assembly. Utility Model Content

[0006] The purpose of the utility model is to provide a low-noise shredder with a protective structure to solve the problems that the existing shredders mentioned in the above background technology have poor safety protection effects, that the user's hands are easily inserted into the shredder from the paper inlet or paper outlet during operation, and contact with the rotating blade disc may cause injury, and that the body is prone to vibration and is not stable during operation. When the shredder is jammed, it is inconvenient to clean the jammed shredded paper and maintain the blade disc assembly.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low-noise paper shredder with a protective structure, comprising a casing, a cover snapped on the top of the casing, a paper feed port fixedly connected to the middle of the cover, an infrared switch fixedly installed on one side of the inner wall of the paper feed port, rotating shafts are rotatably connected to both sides of the top of the casing through bearings, a plurality of knife discs are fixedly sleeved on the surfaces of the two rotating shafts, a side casing is fixedly connected to the top of the side wall of the casing, a motor is fixedly installed on one end of the side casing facing away from the casing, a sound-absorbing cotton pad is fixedly connected to the top of the casing, a door cover is hinged at the bottom of the front of the casing, a photoelectric switch is fixedly installed on one side of the bottom of the inner wall of the casing, dampers are fixedly installed at the four corners of the bottom end of the casing, and the bottom ends of the four dampers are fixedly connected to the bottom plate.

[0008] When a low-noise shredder with a protective structure according to the technical solution is used, the shredder has better safety, preventing the user's hands from being injured by the rotating blade disc, has low noise during operation, and the machine cover can be quickly disassembled, which is convenient for cleaning blocked shredded paper and maintaining the blade disc assembly.

[0009] As a preferred technical solution of the utility model, the front and back of the cover are provided with bayonet holes, the top of the housing is fixedly embedded with mounting seats on both sides, one side of the inner wall of the mounting seat is fixedly connected with a plurality of springs, and one end of the plurality of springs is fixedly connected with a clamping strip. The clamping strip will be pushed outward under the action of the spring.

[0010] As a preferred technical solution of the utility model, the clamping strip is clamped with the inner wall of the clamping port. The clamping strips on both sides are clamped with the clamping port to lock the position of the machine cover.

[0011] As a preferred technical solution of the utility model, the top and bottom of the inner wall of the mounting seat are provided with a slide groove, the inner walls of the two slide grooves are slidably connected with a slider, and the two sliders are respectively fixedly connected to the top and bottom of the clamping strip. The slider and the slide groove play a role in limiting and guiding the movement of the clamping strip.

[0012] As a preferred technical solution of the utility model, one end of the two rotating shafts passes through the outer wall of the housing and is fixedly connected to a gear, and the output end of the motor passes through the inner wall of the side housing and is fixedly connected to one of the gears. The motor is provided to drive the cutter discs on the two rotating shafts to rotate.

[0013] As a preferred technical solution of the utility model, a shock-absorbing pad is fixedly connected to the bottom end of the bottom plate. The provision of the shock-absorbing pad can improve the stability of the shredder during operation.

[0014] As a preferred technical solution of the utility model, a glass window is fixedly connected to the middle of the door cover, so as to facilitate observation of the amount of shredded paper in the casing.

[0015] As a preferred technical solution of the utility model, a switch panel is installed on the top of the front of the housing, the motor is electrically connected to the external power supply through the switch panel, and the infrared switch and the photoelectric switch are electrically connected to the motor. The switch panel is provided to control the operation of the motor.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. An infrared switch is provided at the paper inlet of the shredder. When it detects that the user's hand is inserted, the motor will be immediately turned off to stop the rotation of the blade disc. When the photoelectric switch detects that the door cover is opened, the motor will also be turned off, thereby improving the safety of the shredder and preventing the user's hand from being injured by the rotating blade disc. A damper is provided at the bottom of the shredder to improve the operating stability, and a sound-absorbing cotton pad is provided in the paper shredding area, thereby having a better noise reduction effect;

[0018] 2. The card strip of the casing is inserted into the card slot of the machine cover under the action of the spring, which plays a locking role. When the shredder is jammed, the machine cover can be quickly removed by pressing the card strips on both sides of the machine cover into the mounting seat, which is convenient for cleaning the blocked shredded paper and maintaining the blade assembly, making work efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 It is a top cross-sectional view of the utility model;

[0021] Figure 3 It is a rear cross-sectional view of the casing of the utility model;

[0022] Figure 4 It is a cross-sectional view of the top of the casing of the utility model.

[0023] In the figure: 1. Casing; 2. Cover; 3. Paper feed port; 4. Rotating shaft; 5. Cutter disc; 6. Gear; 7. Side shell; 8. Motor; 9. Sound-absorbing cotton pad; 10. Door cover; 11. Damper; 12. Bottom plate; 13. Shock-absorbing pad; 14. Infrared switch; 15. Photoelectric switch; 16. Mounting seat; 17. Spring; 18. Card strip; 19. Bayonet; 20. Slider; 21. Slide groove; 22. Switch panel; 23. Glass window. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-4The utility model provides a low-noise paper shredder with a protective structure, including a casing 1, a cover 2 is engaged at the top of the casing 1, a paper feed port 3 is fixedly connected to the middle of the cover 2 for feeding waste paper, an infrared switch 14 is fixedly installed on one side of the inner wall of the paper feed port 3, both sides of the top of the inner top of the casing 1 are rotatably connected with a rotating shaft 4 through bearings, and a plurality of knife discs 5 are fixedly sleeved on the surfaces of the two rotating shafts 4 for cutting, a side casing 7 is fixedly connected to the top of the side wall of the casing 1, a motor 8 is fixedly installed at one end of the side casing 7 away from the casing 1, a sound-absorbing cotton pad 9 is fixedly connected to the top of the inner top of the casing 1 for noise reduction, a door cover 10 is hinged at the bottom of the front of the casing 1, a photoelectric switch 15 is fixedly installed on one side of the bottom of the inner wall of the casing 1 for detecting the switch of the door cover 10, dampers 11 are fixedly installed at the four corners of the bottom end of the casing 1, and the bottom ends of the four dampers 11 are fixedly connected to the bottom plate 12 for buffering.

[0026] When in use, an infrared switch 14 is provided at the paper inlet 3 of the shredder. When it detects that the user's hand is inserted, the motor 8 will be immediately turned off to stop the rotation of the blade disc 5. When the photoelectric switch 15 detects that the door cover 10 is opened, the motor 8 will also be turned off, thereby improving the safety of the shredder and preventing the user's hand from being injured by the rotating blade disc 5. A damper 11 is provided at the bottom of the shredder to improve the operating stability, and a sound-absorbing cotton pad 9 is provided in the paper shredding area, thereby having a better noise reduction effect.

[0027] The front and back sides of the cover 2 are provided with bayonet holes 19, and mounting seats 16 are fixedly embedded on both sides of the top of the casing 1. One side of the inner wall of the mounting seat 16 is fixedly connected with a plurality of springs 17, and one end of the plurality of springs 17 is fixedly connected with a clamping strip 18, which engages with the inner wall of the bayonet hole 19 to play a locking role. The top and bottom ends of the inner wall of the mounting seat 16 are provided with sliding grooves 21, and the inner walls of the two sliding grooves 21 are slidably connected with sliders 20, and the two sliders 20 are respectively fixedly connected to the top and bottom ends of the clamping strip 18 to play a guiding and limiting role.

[0028] When in use, the card strip 18 of the casing 1 is inserted into the card slot 19 of the cover 2 under the action of the spring 17, which plays a locking role. When the shredder is jammed, the cover 2 can be quickly disassembled by pressing the card strips 18 on both sides of the cover 2 into the mounting seat 16, which is convenient for cleaning the jammed shredded paper and maintaining the knife disc 5 assembly, and the work is efficient. The slider 20 and the slide groove 21 can prevent the card strip 18 from shifting and falling off during movement.

[0029] One end of the two rotating shafts 4 passes through the outer wall of the casing 1 and is fixedly connected to a gear 6. The output end of the motor 8 passes through the inner wall of the side casing 7 and is fixedly connected to one of the gears 6 for transmission. The bottom end of the base plate 12 is fixedly connected to a shock-absorbing pad 13 to play a buffering role. The middle part of the door cover 10 is fixedly connected to a glass window 23 for easy observation. A switch panel 22 is installed on the top of the front of the casing 1. The motor 8 is electrically connected to the external power supply through the switch panel 22. The infrared switch 14 and the photoelectric switch 15 are electrically connected to the motor 8 to control the operation.

[0030] When in use, the external power supply is connected, and the switch panel 22 can be pressed to start the motor 8. With the cooperation of the two gears 6, the cutter discs 5 on the two rotating shafts 4 can be driven to rotate at the same time, and the paper fed from the paper inlet 3 is cut into thin strips. The provided shock-absorbing pads 13 can improve the operating stability of the machine. When it is observed from the glass window 23 that the shredded paper in the casing 1 reaches a certain amount, the door cover 10 can be opened to discharge the shredded paper strips.

[0031] In specific use, the utility model is a low-noise paper shredder with a protective structure. By starting the motor 8, under the cooperation of the two gears 6, the knife discs 5 on the two rotating shafts 4 can be driven to rotate at the same time, and the paper fed from the paper inlet 3 is cut into thin strips. After completion, the door cover 10 can be opened to discharge the shredded paper strips. By providing an infrared switch 14 at the paper inlet 3 of the paper shredder, when it detects that the user's hand is inserted, the motor 8 will be immediately turned off to stop the rotation of the knife disc 5, and when the photoelectric switch 15 detects that the door cover 10 is opened, the motor 8 will also be turned off, thereby improving the safety of the paper shredder and preventing the user's hand from being rotated. The blade disc 5 is damaged. A damper 11 is provided at the bottom of the shredder to improve the running stability, and a sound-absorbing cotton pad 9 is provided in the shredding area, thereby having a better noise reduction effect. The card strip 18 of the casing 1 is inserted into the card slot 19 of the cover 2 under the action of the spring 17, which plays a locking role. When the shredder is jammed, the cover 2 can be quickly removed by pressing the card strips 18 on both sides of the cover 2 into the mounting seat 16, which is convenient for cleaning the jammed shredded paper and maintaining the blade disc 5 assembly, and the work is efficient. The model of the infrared switch 14 is TAD-K218D-220, and the model of the photoelectric switch 15 is SA005-1K.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A low-noise paper shredder with a protective structure, comprising a housing (1), characterized in that: The top of the casing (1) is engaged with a cover (2), the middle of the cover (2) is fixedly connected to a paper feed port (3), one side of the inner wall of the paper feed port (3) is fixedly mounted with an infrared switch (14), both sides of the top of the inside of the casing (1) are rotatably connected to a rotating shaft (4) through bearings, and the surfaces of the two rotating shafts (4) are fixedly sleeved with a plurality of knife discs (5), the top of the side wall of the casing (1) is fixedly connected to a side casing (7), one end of the side casing (7) facing away from the casing (1) is fixedly mounted with a motor (8), the top of the inside of the casing (1) is fixedly connected with a sound-absorbing cotton pad (9), the bottom of the front of the casing (1) is hinged with a door cover (10), one side of the bottom of the inner wall of the casing (1) is fixedly mounted with a photoelectric switch (15), and the four corners of the bottom of the casing (1) are fixedly mounted with dampers (11), and the bottom ends of the four dampers (11) are fixedly connected with a bottom plate (12).

2. The low-noise paper shredder with a protective structure according to claim 1, characterized in that: The front and back sides of the machine cover (2) are both provided with bayonet holes (19); mounting seats (16) are fixedly embedded on both sides of the top of the machine housing (1); one side of the inner wall of the mounting seat (16) is fixedly connected to a plurality of springs (17); one end of the plurality of springs (17) is fixedly connected to a clamping strip (18).

3. The low noise paper shredder with a protective structure according to claim 2, characterized in that: The clamping strip (18) is clamped with the inner wall of the clamping opening (19).

4. The low-noise paper shredder with a protective structure according to claim 2, characterized in that: The top end and the bottom end of the inner wall of the mounting seat (16) are both provided with a slide groove (21), the inner walls of the two slide grooves (21) are both slidably connected with a slider (20), and the two sliders (20) are respectively fixedly connected to the top end and the bottom end of the clamping strip (18).

5. The low-noise paper shredder with a protective structure according to claim 1, characterized in that: One end of the two rotating shafts (4) passes through the outer wall of the casing (1) and is fixedly connected to a gear (6), and the output end of the motor (8) passes through the inner wall of the side casing (7) and is fixedly connected to one of the gears (6).

6. The low-noise paper shredder with a protective structure according to claim 1, characterized in that: A shock-absorbing pad (13) is fixedly connected to the bottom end of the bottom plate (12).

7. The low-noise paper shredder with a protective structure according to claim 1, characterized in that: A glass window (23) is fixedly connected to the middle portion of the door cover (10).

8. The low-noise paper shredder with a protective structure according to claim 1, characterized in that: A switch panel (22) is installed on the top of the front of the casing (1); the motor (8) is electrically connected to an external power source via the switch panel (22); and the infrared switch (14) and the photoelectric switch (15) are electrically connected to the motor (8).

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