A waste breaking device

Abstract

This invention relates to the field of waste material recycling technology and discloses a waste crushing device, including a mounting frame, a screening mechanism, and a crushing mechanism. The screening mechanism includes a screen cylinder rotatably mounted on the mounting frame, forming a working chamber with the mounting frame. Solid waste is filled to the bottom of the working chamber. The crushing mechanism is located within the working chamber and includes a crushing component slidably disposed within the working chamber. The crushing component is used to crush the solid waste within the working chamber by compressing it. When the screen cylinder rotates, it screens the solid waste within the working chamber. This invention solves the problem in the prior art where the crushed solid waste particles are uneven, requiring screening before being fed into a crusher for secondary crushing, resulting in low working efficiency.

Description

Technical Field

[0001] This invention relates to the field of waste material recycling technology, and in particular to a waste crushing device. Background Technology

[0002] Solid waste recycling is an important environmental protection initiative aimed at reducing pollution from construction waste and conserving natural resources. For example, after solid waste is crushed, the crushed material can be recycled for secondary processing or used as filler material to fill depressions or pits.

[0003] In existing technologies, most solid waste is crushed using roller crushers or jaw crushers. However, the crushed solid waste particles are not uniform and need to be screened before being fed back into the crusher for secondary crushing, resulting in low work efficiency. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a waste crushing device to solve the problem in the prior art that the solid waste particles are not uniform after crushing, and need to be screened and then put into the crusher for secondary crushing, resulting in low working efficiency.

[0005] The present invention solves the above-mentioned technical problems through the following technical means:

[0006] A waste crushing device includes a mounting frame, a screening mechanism, and a crushing mechanism. The screening mechanism includes a screen cylinder rotatably mounted on the mounting frame, forming a working chamber with the screen cylinder. Solid waste is filled to the bottom of the working chamber. The crushing mechanism is located inside the working chamber and includes a crushing component slidably disposed within the working chamber. The crushing component is used to crush the solid waste inside the working chamber by squeezing it. When the screen cylinder rotates, it screens the solid waste inside the working chamber.

[0007] Furthermore, a support mechanism is provided inside the working chamber. The support mechanism includes a support component, and a crushing area is provided inside the support component. The crushing area is connected to the working chamber. Solid waste in the working chamber can enter the crushing area, and solid waste in the crushing area can enter the working chamber. The support component is used to replace the screen cylinder and cooperate with the crushing component to squeeze the solid waste.

[0008] Furthermore, the support assembly includes a support arc plate and two first connecting plates fixedly connected to both sides of the support arc plate. The crushing area is formed by the support arc plate and the two first connecting plates. The first connecting plates are rotatably connected to the mounting frame. The working chamber is provided with a highest point and a lowest point. When the crushing area is at the lowest point, the crushing assembly squeezes the solid waste in the crushing area. During the process of the crushing area rotating from the lowest point to the highest point, the solid waste in the crushing area slides into the working chamber.

[0009] Furthermore, the screen cylinder rotates continuously from the highest point to the lowest point. The rotation axis of the supporting arc plate is the same as the rotation axis of the screen cylinder. The outer surface of the supporting arc plate is in contact with the inner surface of the screen cylinder. As the screen cylinder moves the solid waste in the working chamber away from the highest point, the supporting arc plate rotates from the highest point to the lowest point. The solid waste falls back into the crushing area under its own gravity.

[0010] Furthermore, the crushing mechanism also includes a drive cylinder, the base of which is fixedly connected to the mounting bracket, and the output shaft of which is connected to the crushing component for transmission. The drive cylinder drives the crushing component to move up and down. A transmission component is provided between the first connecting plate and the crushing component. When the support component moves up and down, it drives the transmission component to rotate.

[0011] Furthermore, the transmission assembly includes a second connecting plate, a transmission rack, and a limiting member. The second connecting plate is slidably mounted on the mounting bracket. The transmission rack is fixedly connected to the second connecting plate. A transmission gear is provided on the first connecting plate. The axis of the transmission gear is on the same straight line as the rotation axis of the second connecting plate. The transmission rack meshes with the transmission gear. The limiting member is fixedly mounted on the crushing assembly. A limiting head is fixedly provided on the second connecting plate. The limiting member is used to prevent the limiting head from passing through the limiting member.

[0012] Furthermore, the limiting component includes a limiting block, a first spring, and a mounting block. The mounting block is fixedly installed on the crushing assembly. A rod is fixedly connected to the limiting block. The rod is slidably installed on the mounting block. The first spring is sleeved on the rod. One end of the first spring abuts against the mounting block, and the other end abuts against the limiting block.

[0013] Furthermore, the crushing assembly includes a crushing head, the output shaft of the drive cylinder is fixedly connected to the crushing head, and the bottom surface of the crushing head is provided with a plurality of crushing teeth.

[0014] Furthermore, the screening mechanism also includes a drive motor, which is fixedly mounted on a mounting frame. A gear ring is fixedly provided on one side of the screen cylinder, and a drive gear is fixedly connected to the output shaft of the drive motor, the drive gear meshing with the gear ring.

[0015] Furthermore, a cleaning mechanism is provided on the side of the mounting frame away from the highest point. The cleaning mechanism includes a cleaning block, and slide rods are fixedly connected to both ends of the cleaning block. A connecting block is fixedly provided on the mounting frame. The slide rods are slidably mounted on the connecting block. A limit ring is provided at the end of the slide rod. A second spring is sleeved on the slide rod. One end of the second spring abuts against the limit ring, and the other end abuts against the connecting block. Multiple cleaning teeth are fixedly provided on the cleaning block. The cleaning teeth are used to clean the particles inside the screen holes of the screen cylinder.

[0016] The beneficial effects of this invention are:

[0017] 1. This invention, by setting up a screen cylinder and a crushing component, allows the solid waste in the working chamber to be crushed by the crushing component and then directly screened through the screen cylinder, leaving unqualified particles in the working chamber for further crushing, eliminating the need for secondary handling and effectively improving work efficiency.

[0018] 2. By setting up a support mechanism, the present invention uses a stronger support mechanism to replace the screen cylinder and crushing components to squeeze solid waste, thereby avoiding damage to the screen cylinder, reducing the cost of maintenance and replacement in the later stage, and the screen cylinder can keep rotating continuously without the need to control the start and stop of the screen cylinder.

[0019] 3. The present invention, by setting a supporting arc plate and a first connecting plate, drives the first connecting plate to rotate, which can unload solid waste in the crushing area or receive solid waste thrown from the screen cylinder. The structure is simple and can improve the screening efficiency of the screen cylinder during the unloading or throwing of solid waste.

[0020] 4. By setting up a drive cylinder and a transmission assembly, the drive cylinder and the transmission assembly are connected in a transmission manner, eliminating the need to set up an additional drive for the first connecting plate, thus effectively reducing costs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a waste crushing device according to the present invention;

[0022] Figure 2 This is a schematic diagram of the disassembled structure of a waste crushing device according to the present invention;

[0023] Figure 3 This is a cross-sectional structural schematic diagram of a waste crushing device according to the present invention;

[0024] Figure 4 This is a schematic diagram of the support mechanism located at the lowest point in a waste crushing device according to the present invention;

[0025] Figure 5 This is a schematic diagram of the support mechanism located at the highest point in a waste crushing device according to the present invention;

[0026] Figure 6 This is a schematic diagram of the support mechanism and the crushing mechanism in a waste crushing device according to the present invention;

[0027] Figure 7 This is a schematic diagram showing the disassembled structure of the support mechanism and the crushing mechanism in a waste crushing device according to the present invention;

[0028] Figure 8 yes Figure 7 A magnified structural diagram of A in the middle;

[0029] Figure 9 This is a schematic diagram of the cleaning mechanism in a waste crushing device according to the present invention;

[0030] in,

[0031] 1. Mounting bracket; 11. First mounting plate; 111. First support frame; 112. Feed inlet; 12. Second mounting plate; 121. Second support frame; 13. Third mounting plate; 14. Protective cover;

[0032] 2. Screening mechanism; 21. Screen cylinder; 211. Ring body; 22. Drive motor; 221. Drive gear; 23. Gear ring;

[0033] 3. Support mechanism; 31. Supporting arc plate; 32. First connecting plate; 321. Transmission gear;

[0034] 4. Crushing mechanism; 41. Crushing head; 411. Crushing teeth; 412. Four mounting plates; 42. Drive cylinder;

[0035] 51. Working chamber; 52. Crushing area;

[0036] 61. Second connecting plate; 611. Limiting head; 612. Slide groove; 62. Transmission rack; 63. Limiting component; 631. Limiting block; 632. First spring; 633. Mounting block; 634. Rod body; 635. Guide surface; 636. Retaining ring;

[0037] 7. Cleaning mechanism; 71. Cleaning block; 711. Cleaning tooth; 72. Slide rod; 721. Limiting ring; 73. Connecting block; 74. Second spring. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] like Figures 1-9 As shown, a waste crushing device of the present invention includes a mounting frame 1, a screening mechanism 2, a support mechanism 3, and a crushing mechanism 4. The screening mechanism 2 includes a screen cylinder 21, which is rotatably mounted on the mounting frame 1. The screen cylinder 21 and the mounting frame 1 form a working chamber 51. Solid waste is filled to the bottom of the working chamber 51. The crushing mechanism 4 is located inside the working chamber 51 and includes a crushing component, which is slidably disposed inside the working chamber 51. The crushing component cooperates with the screen cylinder 21 to crush the solid waste in the working chamber 51. Then, the screen cylinder 21 is rotated to screen the solid waste in the working chamber 51, leaving unqualified particles in the working chamber 51 for further crushing, eliminating the need for secondary handling and effectively improving work efficiency.

[0040] In this embodiment, the mounting frame 1 includes a first mounting plate 11, a first support frame 111, a second mounting plate 12, and a second support frame 121. The first mounting plate 11 is fixedly connected to the first support frame 111, and the second mounting plate 12 is connected to the second support frame 121. Both the first mounting plate 11 and the second mounting plate 12 are circular plates. The screen cylinder 21 is rotatably installed between the first mounting plate 11 and the second mounting plate 12. The working chamber 51 is formed by the first mounting plate 11, the second mounting plate 12, and the screen cylinder 21. The first mounting plate 11 is provided with a feed inlet 112, which communicates with the working chamber 51, allowing solid waste to be placed into the working chamber 51 through the feed inlet 112.

[0041] In this embodiment, the screening mechanism 2 further includes a drive motor 22, which drives the screen cylinder 21 to rotate. Specifically, a third mounting plate 13 is provided inside the working chamber 51. The two ends of the third mounting plate 13 are fixedly connected to the first mounting plate 11 and the second mounting plate 12, respectively. The drive motor 22 is fixedly mounted on the third mounting plate 13, thus achieving a fixed connection between the drive motor 22 and the mounting frame 1. A gear ring 23 is fixedly provided on one side of the screen cylinder 21. A drive gear 221 is fixedly connected to the output shaft of the drive motor 22, and the drive gear 221 meshes with the gear ring 23. When the drive motor 22 is working, it can drive the screen cylinder 21 to rotate through the drive gear 221 and the gear ring 23.

[0042] In this embodiment, a ring 211 is fixedly provided on one side of the screen cylinder 21. The screen cylinder 21 is sleeved on the outer circumference of the first mounting plate 11 and the second mounting plate 12. The ring 211 abuts against the second mounting plate 12. A toothed ring 23 is fixedly connected to the side of the screen cylinder 21 away from the ring 211 by fixing bolts. The toothed ring 23 abuts against the first mounting plate 11. The ring 211 and the toothed ring 23 cooperate to limit the screen cylinder 21, realizing the rotational connection between the screen cylinder 21 and the mounting frame 1. In some other embodiments, a circular slide rail, connecting bracket, etc. can also be provided to realize the rotational connection between the screen cylinder 21 and the mounting frame 1. In this embodiment, a toothed ring 23 and a ring 211 are used. After removing the toothed ring 23 from the screen cylinder 21, the screen cylinder 21 can be disassembled, which is simple, convenient and quick.

[0043] In this embodiment, the crushing assembly includes a crushing head 41, which is slidably disposed within the working chamber 51. When the crushing head 41 moves downward, it cooperates with the screen cylinder 21 to crush the solid waste within the working chamber 51. The bottom surface of the crushing head 41 is provided with a plurality of crushing teeth 411, which can improve the crushing effect of the crushing head 41.

[0044] In this embodiment, the support mechanism 3 is disposed in the working chamber 51. The support mechanism 3 includes a support component, and a crushing area 52 is disposed in the support component. The crushing area 52 is connected to the working chamber 51. Solid waste in the working chamber 51 can enter the crushing area 52, and solid waste in the crushing area 52 can enter the working chamber 51. Using a stronger support mechanism 3 instead of the screen cylinder 21 to cooperate with the crushing component to squeeze solid waste avoids damage to the screen cylinder 21, reduces the cost of later maintenance and replacement, and allows the screen cylinder 21 to continue rotating without the need to control the start and stop of the screen cylinder 21.

[0045] In this embodiment, the support assembly includes a support arc plate 31 and two first connecting plates 32 fixedly connected to both sides of the support arc plate 31. The crushing area 52 is formed by the support arc plate 31 and the two first connecting plates 32. The first connecting plates 32 are rotatably connected to the mounting frame 1. The working chamber 51 has a highest point and a lowest point. In this embodiment, the highest point is located on the right side of the working chamber 51, and the lowest point is located at the bottom of the working chamber 51. When the support arc plate 31 is at the lowest point, i.e., when the crushing area 52 is at the lowest point, the crushing assembly squeezes the solid waste in the crushing area 52. During the process of the crushing area 52 rotating from the lowest point to the highest point, i.e., during the clockwise rotation of the support arc plate 31, the solid waste in the crushing area 52 slides into the working chamber 51, achieving automatic unloading. In some other embodiments, a support plate can be directly installed and fixedly mounted in the working chamber 51, without the need for the first connecting plates 32. A corresponding unloading assembly can be provided to push the solid waste off the support plate.

[0046] In this embodiment, when the screen cylinder 21 is working, its rotation direction is set to continuously rotate from the highest point to the lowest point. That is, the drive motor 22 drives the screen cylinder 21 to rotate counterclockwise. The rotation axis of the supporting arc plate 31 is on the same straight line as the rotation axis of the screen cylinder 21, and the outer surface of the supporting arc plate 31 is in contact with the inner surface of the screen cylinder 21. As the screen cylinder 21 moves the solid waste in the working chamber 51 away from the highest point, the supporting arc plate 31 rotates from the highest point to the lowest point, that is, the supporting arc plate 31 rotates counterclockwise to the lowest point. The solid waste falls back into the crushing area 52 under its own gravity, realizing automatic material return. In some other embodiments, the solid waste in the working chamber 51 can also be grabbed into the crushing area 52 by setting matching clamps, tipping buckets, and other material grabbing components to realize material return. However, this requires additional drive and control systems, which is more expensive, and the material return is not sufficient.

[0047] In this embodiment, the crushing mechanism 4 further includes a drive cylinder 42. The base of the drive cylinder 42 is fixedly connected to the third mounting plate 13, and the output shaft of the drive cylinder 42 is drively connected to the crushing head 41. The drive cylinder 42 is used to drive the crushing head 41 to move up and down, realizing a sliding connection between the crushing component and the mounting frame 1. A transmission component is provided between the first connecting plate 32 of the support component and the crushing head 41 of the crushing component. When the support component moves up and down, it drives the transmission component to rotate. When the drive cylinder 42 drives the crushing head 41 to move, it can drive the first connecting plate 32 to rotate. There is no need to set up an additional power source and control system for the support component, saving costs.

[0048] In this embodiment, the transmission assembly includes a second connecting plate 61, a transmission rack 62, and a limiting member 63. The second connecting plate 61 is slidably mounted on the third mounting plate 13 of the mounting bracket 1. The transmission rack 62 is fixedly connected to the second connecting plate 61. A transmission gear 321 is fixedly mounted on the first connecting plate 32. The axis of the transmission gear 321 is collinear with the axis of rotation of the second connecting plate 61. The transmission rack 62 meshes with the transmission gear 321. The limiting member 63 is fixedly mounted on the crushing head 41 of the crushing assembly. Specifically, a fourth mounting plate 412 is provided on the crushing head 41, and the limiting member 63 is fixedly mounted on the fourth mounting plate 412. A limiting head 611 is fixedly mounted on the second connecting plate 61, and the limiting member 63 is used to prevent the limiting head 611 from passing through the limiting member 63. By setting a limiting head 611 and a limiting component 63, during the upward movement of the crushing head 41, the fourth mounting plate 412 is driven to move upward. When the limiting component 63 on the fourth mounting plate 412 abuts against the limiting head 611, the limiting component 63 obstructs the passage of the limiting head 611 and forcibly pushes the limiting head 611 upward. During the upward movement of the limiting head 611, the transmission rack 62 is driven to move upward through the second connecting plate 61. The transmission rack 62, through the transmission gear 321, drives the first connecting plate 32 to rotate clockwise. The first connecting plate 32 drives the supporting arc plate 31 to rotate clockwise, realizing automatic unloading. After the limiting head 611 forcibly squeezes through the limiting component 63 from top to bottom, the supporting arc plate 31 and the first connecting plate 32 rotate counterclockwise and fall back under their own gravity, cooperating with the rotating counterclockwise screen cylinder 21 to receive the solid waste thrown off the screen cylinder 21, realizing automatic material return. As the crushing head 41 moves downward, the limiting head 611 forcibly squeezes through the limiting member 63 from bottom to top, so that the limiting member 63 pushes the limiting head 611 upward again.

[0049] In this embodiment, a sliding groove 612 is provided on the second connecting plate 61. The second connecting plate 61 is slidably mounted on the third mounting plate 13 through the sliding groove 612, and the sliding groove 612 limits the highest and lowest positions of the second connecting plate 61. The highest and lowest positions can be set according to actual needs. By providing the sliding groove 612, on the one hand, a sliding connection between the second connecting plate 61 and the third mounting plate 13 is realized; on the other hand, when the second connecting plate 61 moves to the highest or lowest position, it can provide resistance to ensure that the limiting head 611 can forcibly squeeze through the limiting member 63.

[0050] In this embodiment, the limiting member 63 includes a limiting block 631, a first spring 632, and a mounting block 633. The mounting block 633 is fixedly mounted on the fourth mounting plate 412 of the crushing assembly. A rod 634 is fixedly connected to the limiting block 631 and slidably mounted on the mounting block 633. The first spring 632 is sleeved on the rod 634, with one end abutting against the mounting block 633 and the other end abutting against the limiting block 631. A retaining ring 636 is provided at the end of the rod 634 to prevent the rod 634 from detaching from the mounting block 633. When the limiting head 611 passes through the limiting block 631, it needs to squeeze the limiting block 631 and compress the first spring 632 before it can pass. In this embodiment, two limiting members 63 are provided, located on both sides of the limiting head 611 to ensure the obstruction effect on the limiting head 611. In this embodiment, guide surfaces 635 are provided on both the upper and lower sides of the limiting block 631 to ensure that the limiting head 611 can smoothly squeeze the limiting block 631, forcing the limiting block 631 to further compress the first spring 632. In this embodiment, the first spring 632 is preferably a rigid spring with a large elastic coefficient to ensure that the supporting arc plate 31 can rotate smoothly.

[0051] In this embodiment, a cleaning mechanism 7 is provided on the side of the mounting frame 1 furthest from the highest point. The cleaning mechanism 7 includes a cleaning block 71, with slide rods 72 fixedly connected to both ends of the cleaning block 71. A connecting block 73 is fixedly provided on the mounting frame 1. The slide rods 72 are slidably mounted on the connecting block 73. A limit ring 721 is provided at the end of the slide rod 72. A second spring 74 is sleeved on the slide rod 72. One end of the second spring 74 abuts against the limit ring 721, and the other end abuts against the connecting block 73. Multiple cleaning teeth 711 are fixedly provided on the cleaning block 71. The cleaning teeth 711 are used to clean the particles inside the sieve holes of the sieve cylinder 21. This prevents particles from moving along the holes of the sieve cylinder 21 to the top of the working chamber 51 and falling to the transmission structure, thus affecting the transmission.

[0052] In this embodiment, a protective cover 14 is fixedly installed on the outside of the mounting bracket 1. The protective cover 14 is used to prevent the dust in the working chamber 51 from spreading upwards to the outside.

[0053] When using the solid waste crushing device of this invention:

[0054] First, solid waste is fed into the working chamber 51 through the feed inlet 112. After entering the working chamber 51, the solid waste slides into the crushing area 52 of the supporting arc plate 31. Subsequently, solid waste can be continuously fed into the working chamber 51 according to the crushing situation inside the working chamber 51.

[0055] Then, control the drive motor 22 to work, and drive the screen cylinder 21 to keep rotating counterclockwise.

[0056] Then, the control drive cylinder 42 is activated, and the output shaft of the drive cylinder 42 pushes the crushing head 41 to move downward. During the downward movement of the crushing head 41, when the limiting member 63 abuts against the limiting head 611, the limiting head 611 forcibly squeezes the limiting block 631 from bottom to top and compresses the first spring 632, forcibly passing through the limiting member 63. Then the crushing head 41 continues to move downward until it squeezes the solid waste in the crushing area 52 of the supporting arc plate 31.

[0057] Subsequently, the control drive cylinder 42 is activated, and the output shaft of the drive cylinder 42 pulls the crushing head 41 upward. During the upward movement of the crushing head 41, when the limiting member 63 abuts against the limiting head 611, the limiting member 63 obstructs the passage of the limiting head 611 and forcibly pushes the limiting head 611 upward. During the upward movement of the limiting head 611, the transmission rack 62 is driven to move upward through the second connecting plate 61. The transmission rack 62 drives the first connecting plate 32 to rotate clockwise through the transmission gear 321. The first connecting plate 32 drives the supporting arc plate 31 to rotate clockwise, and the solid waste in the crushing area 52 slides into the working chamber 51, realizing automatic unloading.

[0058] When the supporting arc plate 31 rotates to its highest point, the third mounting plate 13 restricts the second connecting plate 61 from continuing to move. After the limiting head 611 forcibly squeezes through the limiting member 63 from top to bottom, the supporting arc plate 31 and the first connecting plate 32 rotate counterclockwise and fall back under their own gravity, and cooperate with the rotating counterclockwise screen cylinder 21 to receive the solid waste thrown off the screen cylinder 21, thus realizing automatic material return.

[0059] Finally, by driving the cylinder 42, the crushing head 41 is moved down to form a crushing and squeezing cycle until all the solid waste in the installation cavity falls through the screen cylinder 21 to the bottom of the installation frame 1.

[0060] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention 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 solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications and substitutions should be covered within the scope of the claims of the present invention. Technical aspects, shapes, and structures not described in detail in this invention are all well-known technologies.

Claims

1. A waste breaking device, characterized by, The system includes a mounting frame (1), a screening mechanism (2), and a crushing mechanism (4). The screening mechanism (2) includes a screen cylinder (21), which is rotatably mounted on the mounting frame (1). The screen cylinder (21) and the mounting frame (1) form a working chamber (51). Solid waste is filled to the bottom of the working chamber (51). The crushing mechanism (4) is located inside the working chamber (51). The crushing mechanism (4) includes a crushing component, which is slidably disposed inside the working chamber (51). The crushing component is used to squeeze and crush the solid waste inside the working chamber (51). When the screen cylinder (21) rotates, it screens the solid waste inside the working chamber (51). The working chamber (51) is provided with a support mechanism (3), which includes a support component. The support component is provided with a crushing area (52), which is connected to the working chamber (51). Solid waste in the working chamber (51) can enter the crushing area (52), and solid waste in the crushing area (52) can enter the working chamber (51). The support component is used to replace the screen cylinder (21) and cooperate with the crushing component to crush solid waste. The support assembly includes a support arc plate (31) and a first connecting plate (32) fixedly connected to both sides of the support arc plate (31). The crushing area (52) is formed by the support arc plate (31) and the two first connecting plates (32). The first connecting plate (32) is rotatably connected to the mounting frame (1). The working chamber (51) is provided with a highest point and a lowest point. When the crushing area (52) is at the lowest point, the crushing assembly squeezes the solid waste in the crushing area (52). During the process of the crushing area (52) rotating from the lowest point to the highest point, the solid waste in the crushing area (52) slides into the working chamber (51). The crushing mechanism (4) also includes a drive cylinder (42). The base of the drive cylinder (42) is fixedly connected to the mounting bracket (1). The output shaft of the drive cylinder (42) is connected to the crushing component. The drive cylinder (42) drives the crushing component to move up and down. A transmission component is provided between the first connecting plate (32) and the crushing component. When the transmission component moves up and down, it drives the transmission component to rotate. The transmission assembly includes a second connecting plate (61), a transmission rack (62), and a limiting member (63). The second connecting plate (61) is slidably mounted on the mounting bracket (1). The transmission rack (62) is fixedly connected to the second connecting plate (61). A transmission gear (321) is provided on the first connecting plate (32). The axis of the transmission gear (321) is the same straight line as the rotation axis of the second connecting plate (61). The transmission rack (62) meshes with the transmission gear (321). The limiting member (63) is fixedly mounted on the crushing assembly. A limiting head (611) is fixedly provided on the second connecting plate (61). The limiting member (63) is used to prevent the limiting head (611) from passing through the limiting member (63).

2. A waste crushing device according to claim 1, characterised in that The screen cylinder (21) rotates continuously from the highest point to the lowest point. The rotation axis of the supporting arc plate (31) is the same as the rotation axis of the screen cylinder (21). The outer surface of the supporting arc plate (31) is in contact with the inner surface of the screen cylinder (21). As the screen cylinder (21) moves the solid waste in the working chamber (51) away from the highest point, the supporting arc plate (31) rotates from the highest point to the lowest point. The solid waste falls back into the crushing area (52) under its own gravity.

3. A waste crushing device according to claim 1, characterised in that The limiting component (63) includes a limiting block (631), a first spring (632), and a mounting block (633). The mounting block (633) is fixedly installed on the crushing assembly. A rod (634) is fixedly connected to the limiting block (631). The rod (634) is slidably installed on the mounting block (633). The first spring (632) is sleeved on the rod (634). One end of the first spring (632) abuts against the mounting block (633), and the other end abuts against the limiting block (631).

4. The waste crushing device according to claim 1, characterized in that, The crushing assembly includes a crushing head (41), the output shaft of the drive cylinder (42) is fixedly connected to the crushing head (41), and the bottom surface of the crushing head (41) is provided with a plurality of crushing teeth (411).

5. A waste crushing device according to claim 1, characterized in that The screening mechanism (2) also includes a drive motor (22), which is fixedly mounted on the mounting frame (1). A toothed ring (23) is fixedly provided on one side of the screen cylinder (21). A drive gear (221) is fixedly connected to the output shaft of the drive motor (22), and the drive gear (221) meshes with the toothed ring (23).

6. The waste crushing device according to claim 1, characterized in that, A cleaning mechanism (7) is provided on the side of the mounting frame (1) away from the highest point. The cleaning mechanism (7) includes a cleaning block (71). Both ends of the cleaning block (71) are fixedly connected to a slide rod (72). A connecting block (73) is fixedly provided on the mounting frame (1). The slide rod (72) is slidably installed on the connecting block (73). A limit ring (721) is provided at the end of the slide rod (72). A second spring (74) is sleeved on the slide rod (72). One end of the second spring (74) abuts against the limit ring (721), and the other end abuts against the connecting block (73). A plurality of cleaning teeth (711) are fixedly provided on the cleaning block (71). The cleaning teeth (711) are used to clean the particles in the sieve holes of the sieve cylinder (21).

Images