Garbage crushing device
By employing a dual crushing system and an adjustable screen angle design, the problem of incomplete crushing in existing waste crushing devices has been solved, thereby improving crushing efficiency and extending equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN PIONEER PROPERTY SERVICES CO LTD
- Filing Date
- 2025-03-25
- Publication Date
- 2026-05-15
AI Technical Summary
Existing waste shredding equipment typically only has one shredding step, resulting in incomplete shredding that requires further processing, reducing efficiency and increasing equipment wear and tear.
A dual crushing system was designed, including a crushing roller and a screen. The crushing roller is driven by a servo motor to rotate the rotating shaft and perform initial crushing of the waste. The screen is used to intercept large particles. Then, secondary crushing is performed by the screen and crushing rod with adjustable tilt angle. The screen angle is adjusted by a bidirectional threaded rod to control the waste flow and residence time.
It achieves complete pulverization of waste, improves pulverization efficiency, avoids equipment wear and tear, and shortens processing time.
Smart Images

Figure CN224236940U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waste pulverizing technology, and in particular to a waste pulverizing device. Background Technology
[0002] Garbage generally refers to solid waste generated by people in their daily lives or in activities that provide services for daily life, as well as solid waste that is considered household waste according to laws and administrative regulations. This waste may come from residents' daily consumption, commercial activities, municipal maintenance and management, and the daily activities of government agencies, enterprises and other units. Garbage has a complex and diverse composition, including organic matter, inorganic matter and recyclable waste.
[0003] The working principle of a garbage shredder is usually as follows: garbage is fed into the device through the feeding system, the motor is started, and the shredder rollers, shredder wheels or blade assemblies of the shredder are driven to rotate through the transmission system, which shreds the garbage into smaller particles or fragments. The shredded garbage is discharged through the discharge port of the garbage shredder.
[0004] However, existing waste shredding equipment still faces many problems during use. Most existing waste shredding equipment only has one shredding process, and there is still a large amount of waste after shredding, so it is necessary to shred it again. This undoubtedly increases the time of the entire process, greatly reduces the efficiency of waste shredding, and may also cause additional wear and tear on the equipment, shortening its service life. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a garbage crushing device, including a box, two rotating shafts are rotatably installed on the inner wall of the box, crushing rollers are fixedly connected to the outer walls of the two rotating shafts, a bidirectional threaded rod is rotatably installed on the inner wall of the box, a threaded seat is rotatably connected to the outer wall of the bidirectional threaded rod, a connecting plate is fixedly connected to the outer wall of the threaded seat, a connecting block is fixedly connected to the top of the connecting plate, a screen is rotatably connected to the top of the connecting block, a rotating rod is rotatably installed on the inner wall of the box, and a plurality of crushing rods are fixedly connected to the outer wall of the rotating rod.
[0006] Optionally, two symmetrical first guide plates are fixedly installed on the inner wall of the box, a baffle is fixedly connected to the inner wall of the box, and a rotating disk is fixedly connected to the end of the bidirectional threaded rod away from the box.
[0007] Optionally, a slide rod is fixedly connected to the inner wall of the housing, and a slide seat is slidably connected to the outer wall of the slide rod. The side of the slide seat near the threaded seat is fixedly connected to the end of the connecting plate away from the threaded seat.
[0008] Optionally, a mounting block is fixedly connected to the side of the screen away from the connecting block, and a sleeve is fixedly connected to the outer wall of the mounting block.
[0009] Optionally, an adjusting rod is rotatably connected to the inner wall of the sleeve, and an adjusting plate is fixedly connected to the outer wall of the adjusting rod. The side of the adjusting plate away from the adjusting rod is fixedly connected to the side of another screen away from the connecting block.
[0010] Optionally, the top of the box is connected to a feed box, the inner wall of the feed box is rotatably connected to a torsion spring shaft, and the outer wall of the torsion spring shaft is fixedly connected to a protective plate.
[0011] Optionally, the inner cavity wall of the box is rotatably connected to an adjusting seat, the outer wall of the adjusting seat is fixedly connected to a second guide plate, the inner cavity wall of the box is slidably connected to a collection box, and the outer surface of the box is connected to a discharge box.
[0012] The beneficial effects of this utility model are:
[0013] 1. The servo motor in this equipment drives the rotating shaft to rotate, which in turn drives the crushing roller to rotate, crushing the waste that enters from the feed box. The crushed waste falls onto the upper surface of the screen, while larger pieces are intercepted on the upper surface of the screen. Due to the tilt angle of the screen and its own gravity, the waste rolls down to the second guide plate below and slides down to the bottom, where it is crushed again by the crushing rod. The two crushing processes ensure that the waste is crushed more thoroughly, effectively improving the crushing effect.
[0014] 2. The rotating disc of the device drives the bidirectional threaded rod to rotate, which in turn drives the two threaded seats to move in opposite directions, and the two connecting plates to move in opposite directions. This, in turn, drives the two screens to rotate, thereby adjusting their tilt angle. By adjusting the screen angle, the flow speed and residence time of the waste on the screen can be controlled. A suitable angle can make the waste evenly distributed on the screen, avoiding waste accumulation or passing through the screen too quickly, thereby improving screening efficiency. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0016] Figure 1 This is a schematic diagram of the overall structure of the waste shredding device of this utility model.
[0017] Figure 2 This is a schematic diagram of the internal structure of the waste shredding device of this utility model.
[0018] Figure 3 This is a schematic diagram of the bidirectional threaded rod structure of this utility model.
[0019] Figure 4 This is a schematic diagram of the screen structure of this utility model.
[0020] Figure 5 This is a schematic diagram of the feed box structure of this utility model.
[0021] In the diagram: 1. Box body; 2. Collection box; 3. Discharge box; 4. Feed box; 5. Rotary disc; 6. First guide plate; 7. Baffle; 8. Crushing roller; 9. Rotating shaft; 10. Screen; 11. Second guide plate; 12. Rotating rod; 13. Bidirectional threaded rod; 14. Threaded seat; 15. Connecting plate; 16. Connecting block; 17. Slide seat; 18. Slide rod; 19. Mounting block; 20. Sleeve; 21. Adjusting plate; 22. Adjusting rod; 23. Torsion spring shaft; 24. Protective plate. Detailed Implementation
[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0023] Example 1
[0024] Reference Figure 1-5 This is the first embodiment of the present invention, which provides a garbage crushing device, including a box 1. Two rotating shafts 9 are rotatably installed on the inner wall of the box 1. A servo motor for driving the rotating shafts 9 to rotate is fixedly installed on the outer surface of the box 1. Crushing rollers 8 are fixedly connected to the outer walls of the two rotating shafts 9. When the servo motor is started, it drives the rotating shafts 9 to rotate, which in turn drives the crushing rollers 8 to rotate, crushing the garbage entering from the feed box 4. A bidirectional threaded rod 13 is rotatably installed on the inner wall of the box 1.
[0025] A threaded seat 14 is rotatably connected to the outer wall of the bidirectional threaded rod 13. A connecting plate 15 is fixedly connected to the outer wall of the threaded seat 14. A connecting block 16 is fixedly connected to the top of the connecting plate 15. A screen 10 is rotatably connected to the top of the connecting block 16. When the operator rotates the rotating disk 5, the bidirectional threaded rod 13 rotates, which causes the two threaded seats 14 to move in opposite directions, and the two connecting plates 15 to move in opposite directions. This causes the two screens 10 to rotate, thereby adjusting their tilt angle. A rotating rod 12 is rotatably installed on the inner wall of the box 1. A speed-regulating motor for driving the rotating rod 12 to rotate is fixedly installed on the outer surface of the box 1. Several crushing rods are fixedly connected to the outer wall of the rotating rod 12 for further crushing of larger waste.
[0026] Two symmetrical first guide plates 6 are fixedly installed on the inner wall of the box body 1. A baffle 7 is fixedly connected to the inner wall of the box body 1. A rotating disk 5 is fixedly connected to the end of the bidirectional threaded rod 13 away from the box body 1. A slide rod 18 is fixedly connected to the inner wall of the box body 1. A slide seat 17 is slidably connected to the outer wall of the slide rod 18. The side of the slide seat 17 near the threaded seat 14 is fixedly connected to the end of the connecting plate 15 away from the threaded seat 14. The slide seat 17 slides on the slide rod 18 to assist in the angle adjustment of the screen 10.
[0027] Example 2
[0028] Reference Figure 1-5 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: a mounting block 19 is fixedly connected to the side of the screen 10 away from the connecting block 16, a sleeve 20 is fixedly connected to the outer wall of the mounting block 19, an adjusting rod 22 is rotatably connected to the inner wall of the sleeve 20, an adjusting plate 21 is fixedly connected to the outer wall of the adjusting rod 22, the side of the adjusting plate 21 away from the adjusting rod 22 is fixedly connected to the side of another screen 10 away from the connecting block 16, and a feeding box 4 is connected to the top of the box 1. A torsion spring shaft 23 is rotatably connected to the inner side wall of the feeding box 4.
[0029] A protective plate 24 is fixedly connected to the outer wall of the torsion spring shaft 23. Since the protective plate 24 is installed in the upper cavity of the feed box 4 through the torsion spring shaft 23, when the staff pours the garbage into the feed box 4, the protective plate 24 rotates to feed the garbage. After feeding, it resets and blocks the upper inlet of the feed box 4, which can prevent some garbage from being squeezed and splashing out, causing injury to the staff. The inner cavity wall of the box body 1 is rotatably connected to an adjustment seat. The outer wall of the adjustment seat is fixedly connected to a second guide plate 11. The inner cavity wall of the box body 1 is slidably connected to a collection box 2. The outer surface of the box body 1 is connected to a discharge box 3. The garbage that has been crushed again is discharged from the discharge box 3.
[0030] The remaining structure is the same as that in Example 1.
[0031] During use, the garbage is first fed into the box 1 from the top of the box 1 through the feed box 4. Since the upper cavity of the feed box 4 is equipped with a protective plate 24 through the torsion spring shaft 23, when the staff pours the garbage into the feed box 4, the protective plate 24 rotates to feed the garbage. After feeding, it resets and blocks the upper inlet of the feed box 4, which can prevent some garbage from being squeezed and splashing out, causing injury to the staff. The servo motor is started to drive the rotating shaft 9 to rotate, which drives the crushing roller 8 to rotate, and crushes the garbage entering from the feed box 4.
[0032] During use, the crushed waste falls onto the upper surface of the screen 10. Larger waste is intercepted on the upper surface of the screen 10, while the more completely crushed waste passes through the mesh of the screen 10 and falls into the collection box 2 below for centralized processing by the staff. The staff rotates the rotating disk 5 to drive the bidirectional threaded rod 13 to rotate, which in turn drives the two threaded seats 14 to move in opposite directions, and drives the two connecting plates 15 to move in opposite directions, thereby driving the two screens 10 to rotate and thus adjusting their tilt angle.
[0033] During use, by adjusting the angle of the screen 10, the flow speed and residence time of the waste on the screen 10 can be controlled. A suitable angle can make the waste evenly distributed on the screen 10, avoiding waste accumulation or passing through the screen 10 too quickly, thereby improving screening efficiency. Start the speed regulating motor to drive the rotating rod 12 to rotate, which in turn drives the crushing rod to rotate. Due to the tilt angle of the screen 10 and its own gravity, the waste rolls down onto the second guide plate 11 below and slides down to the bottom. It is then crushed again by the crushing rod and finally discharged from the discharge box 3.
[0034] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A waste shredding device, characterized in that: include The box body has two rotating shafts rotatably mounted on its inner cavity wall, a bidirectional threaded rod rotatably mounted on its inner cavity wall, and a rotating rod rotatably mounted on its inner cavity wall. Crushing rollers are fixedly connected to the outer walls of the two rotating shafts; The outer wall of the bidirectional threaded rod is rotatably connected to a threaded seat, and the outer wall of the threaded seat is fixedly connected to a connecting plate; A connecting block is fixedly connected to the top of the connecting plate, and a screen is rotatably connected to the top of the connecting block; Several breaking rods are fixedly connected to the outer wall of the rotating rod.
2. The waste shredding device according to claim 1, characterized in that: Two symmetrical first guide plates are fixedly installed on the inner wall of the box, a baffle is fixedly connected to the inner wall of the box, and a rotating disk is fixedly connected to the end of the bidirectional threaded rod away from the box.
3. The waste shredding device according to claim 1, characterized in that: The inner cavity wall of the box is fixedly connected to a slide rod, and the outer wall of the slide rod is slidably connected to a slide seat. The side of the slide seat near the threaded seat is fixedly connected to the end of the connecting plate away from the threaded seat.
4. The waste shredding device according to claim 1, characterized in that: A mounting block is fixedly connected to the side of the screen away from the connecting block, and a sleeve is fixedly connected to the outer wall of the mounting block.
5. The waste shredding device according to claim 4, characterized in that: An adjusting rod is rotatably connected to the inner wall of the sleeve, and an adjusting plate is fixedly connected to the outer wall of the adjusting rod. The side of the adjusting plate away from the adjusting rod is fixedly connected to the side of another screen away from the connecting block.
6. The waste shredding device according to claim 1, characterized in that: The top of the box is connected to a feeding box, the inner wall of the feeding box is rotatably connected to a torsion spring shaft, and the outer wall of the torsion spring shaft is fixedly connected to a protective plate.
7. The waste shredding device according to claim 1, characterized in that: The inner cavity wall of the box is rotatably connected to an adjusting seat, the outer wall of the adjusting seat is fixedly connected to a second guide plate, the inner cavity wall of the box is slidably connected to a collection box, and the outer surface of the box is connected to a discharge box.