Plastic tray crushing equipment based on comprehensive utilization of environmental protection solid waste

Abstract

This invention relates to the field of plastic recycling technology and discloses a plastic pallet crushing device based on the comprehensive utilization of solid waste for environmental protection. The device includes a frame, a crusher mounted on the frame, and a crusher divided into a feeding zone and a crushing zone. The crushing zone contains crushing wheels. An auxiliary feeding assembly is also included on the outside of the crusher, specifically comprising a mounting box positioned above the opening of the feeding zone. This plastic pallet crushing device, based on the comprehensive utilization of solid waste for environmental protection, uses a pressure plate. When a plastic pallet is fed in, the pallet pushes the pressure plate upwards, forming a sliding opening. This pressure plate restricts the movement of the plastic pallet, preventing excessive movement and providing stability. This improves crushing efficiency, extends the service life of the blades, and ensures processing safety. Furthermore, the use of an energy-saving motor reduces the overall power consumption of the equipment.

Description

Technical Field

[0001] This invention relates to the field of plastic recycling technology, and in particular to a plastic pallet crushing device based on the comprehensive utilization of solid waste for environmental protection. Background Technology

[0002] Plastic pallets are logistics equipment used for the storage, transportation, and handling of goods. They are made primarily of plastic through processes such as injection molding and blow molding. Primarily used for containerizing, stacking, handling, and transporting goods, they are widely applied in various industries including food, beverage, pharmaceuticals, chemicals, and electronics. They can be used in conjunction with logistics equipment such as forklifts and stacker cranes to achieve mechanized handling and storage of goods, improving logistics efficiency and reducing labor intensity.

[0003] Since plastic pallets are made of plastic, from the perspective of environmental protection and resource recycling, damaged or discarded plastic pallets or defective products from the plastic pallet production process are cut into fragments by crushing equipment for recycling.

[0004] A plastic pallet crushing device is disclosed in patent publication number CN221339112U. It can easily crush plastic pallets more thoroughly, with high efficiency and strong practicality. It includes a crushing box, a feeding hopper, a rotating shaft, a relative rotation component, a filter screen, a cleaning component, a lifting plate, a lifting component, an ejection component, and a feeding plate. The feeding hopper is connected to the crushing box. There are two rotating shafts, which are rotatably connected to the crushing box. Multiple crushing blades are fixedly connected to the rotating shafts. The relative rotation component is set on the two rotating shafts and is used to drive the two rotating shafts to rotate relative to each other. The filter screen is fixedly connected to the crushing box. The cleaning component is set on the crushing box and is used to clean the plastic pieces filtered out by the filter screen. The crushing box has a cleaning port. The lifting plate is slidably connected to the crushing box and a collection tray is fixedly connected to the lifting plate. The lifting component is set on the crushing box and is used to drive the lifting plate to move up and down.

[0005] The existing technology has the following drawbacks:

[0006] Because plastic pallets are relatively hard but also brittle, especially after the material ages, their brittleness becomes more pronounced. Therefore, during crushing, if the blades are not sufficiently sharp, the plastic pallet may crack under stress. The release of internal stress at the moment of cracking causes the pallet body and fragments to bounce and scatter. This not only affects crushing efficiency, but the bouncing pallet colliding with the blades may also damage them. Furthermore, if the pallet body and fragments bounce and scatter from the feed inlet of the crushing equipment, it can endanger the safety of the operators. Summary of the Invention

[0007] In view of the problem that existing technologies cause the plastic pallet body and the broken fragments to bounce and scatter when broken, a plastic pallet crushing device based on the comprehensive utilization of environmentally friendly solid waste is proposed.

[0008] This application provides a plastic pallet crushing device based on the comprehensive utilization of solid waste for environmental protection, the purpose of which is to prevent the plastic pallet body and the broken fragments from bouncing and splashing.

[0009] The technical solution of the present invention is as follows: a plastic pallet crushing device based on the comprehensive utilization of solid waste for environmental protection, used to process waste plastic pallets, including a frame, a crusher set on the frame, the crusher being divided into a feeding area and a crushing area, a crushing wheel being set inside the crushing area, and an auxiliary feeding component set outside the crusher, the auxiliary feeding component specifically including an installation box set above the opening of the feeding area, and a pressure plate being rotatably connected inside the installation box;

[0010] The pressure plate is inclinedly set in the feeding area, dividing the internal space of the feeding area into two. When the plastic pallet is fed, the pressure plate is pushed upward, and a sliding opening appears.

[0011] Furthermore, the connection between the feeding zone and the crushing zone is provided with a bending angle of not less than 120 degrees.

[0012] Furthermore, the pressure plate specifically includes a plate body, a cavity formed on the upper surface of the plate body, and a cover plate disposed at the opening of the cavity.

[0013] Furthermore, the auxiliary feeding assembly also includes an inner liner disposed between the mounting box and the pressure plate, a rotating groove opened on the lower surface of the pressure plate, a rotating wheel disposed inside the rotating groove, a trigger plate and an adjusting rod disposed outside the rotating wheel, an insertion hole opened on the plate body near the mounting box, an insertion rod disposed inside the insertion hole, a reset spring disposed between the insertion rod and the inner wall of the insertion hole, a connecting rope disposed between the insertion rod and the adjusting rod, a mounting groove opened on the inner side of the inner liner, a positioning plate disposed inside the mounting groove, a positioning groove opened on the surface of the positioning plate near the plate body, a fixing groove opened on the outer side of the inner liner, a connecting groove opened between the fixing groove and the mounting groove, a connecting rod disposed on the side of the positioning plate near the buffer spring, and a fixing platform disposed inside the fixing groove;

[0014] The rotating groove extends to the lower surface of the plate and the inner wall of the cavity. The trigger plate is located on the outer side of the plate, the adjusting rod is located inside the cavity, the insert rod extends into the cavity, the connecting rod extends into the fixing groove and is bolted to the fixing platform. The positioning grooves are distributed in a ring array along the surface contour of the positioning plate.

[0015] Furthermore, the length of the mounting groove is greater than the length of the positioning plate, the length of the connecting groove is greater than the length of the connecting rod, the length of the fixing groove is greater than the length of the fixing platform, and buffer springs are provided at both ends of the fixing platform.

[0016] Furthermore, storage grooves are provided on the bottom of the plate and the inner wall of the cavity, and the storage grooves extend into the rotating groove. The storage grooves on the surface of the plate are located on the side of the rotating groove away from the mounting box, and the storage grooves on the inner wall of the cavity are located on the side of the rotating groove closer to the mounting box.

[0017] Furthermore, the weight of the adjusting rod is greater than that of the trigger plate. Under the action of gravity, the adjusting rod moves downward with the rotating wheel as the fulcrum, and the trigger plate is lifted upward.

[0018] Furthermore, the trigger plate is limited by the opening angle of the rotating slot, and deflects upward to the maximum extent until it is perpendicular to the bottom wall of the feeding area.

[0019] Furthermore, the trigger plate is limited by the opening angle of the rotating slot, and deflects upward to the maximum extent until it is perpendicular to the bottom wall of the plate.

[0020] Furthermore, a row of hanging curtains is provided in the middle of the lower surface of the pressure plate, and the hanging curtains are arranged linearly by plastic ribbons.

[0021] The beneficial effects of this invention are:

[0022] 1. By setting a pressure plate, when the plastic pallet is placed, the plastic pallet pushes the pressure plate upward to form a sliding opening. The plastic pallet enters the crushing zone from the sliding opening, and the pressure plate presses down on top of the plastic pallet. In this way, the pressure plate restricts the plastic pallet, which can prevent the plastic pallet from moving too much and play a certain role in stabilizing it. This improves crushing efficiency and extends the service life of the blades. At the same time, the fragments that break off fly upward to the pressure plate and are blocked by the pressure plate, thus ensuring processing safety.

[0023] 2. By setting up an auxiliary feeding component, when the plastic pallet is fed, the pressure plate is pushed upward and rotates inside the liner. When the plastic pallet partially passes through the sliding opening and is about to enter the crushing zone, the trigger plate is pushed downward by the plastic pallet, and the connecting rope releases the insert rod, allowing it to insert into the positioning groove, locking the pressure plate and the plate body together. This fixes the pressure plate and provides a better restraining effect on the plastic pallet.

[0024] 3. By setting a buffer spring, the positioning plate has a certain amount of room to move within the mounting groove. This ensures that the pressure plate has sufficient binding force on the plastic pallet, while avoiding excessive resistance to the sliding of the plastic pallet.

[0025] 4. By setting a limit on the deflection angle of the trigger plate, when the force direction of the plastic pallet is parallel to the bottom surface of the feeding area, the plastic pallet moves upward along the sliding opening. During this process, the trigger plate will rotate upward and get stuck in the gap on the surface of the plastic pallet, preventing the plastic pallet from moving upward further, thus further restricting the plastic pallet. Attached Figure Description

[0026] Figure 1 This is a perspective view of the plastic pallet crushing device based on the comprehensive utilization of solid waste for environmental protection, according to the present invention.

[0027] Figure 2 This is a schematic diagram of the internal structure of the crusher of this invention;

[0028] Figure 3 This is a schematic diagram of the auxiliary feeding component of the present invention;

[0029] Figure 4 This is a disassembled diagram of the auxiliary feeding component of the present invention;

[0030] Figure 5 This is a schematic diagram of the interior of the mounting slot of the present invention;

[0031] Figure 6 This is an anatomical diagram of the internal components of the mounting slot of the present invention;

[0032] Figure 7 This is a disassembled diagram of the pressure plate of the present invention;

[0033] Figure 8 For the present invention Figure 7 Enlarged view of point A in the middle;

[0034] Figure 9 This is a front view of the present invention;

[0035] Figure 10 For the present invention Figure 9 Sectional view at point AA;

[0036] Figure 11 This is a cross-sectional view of the pressure plate of the present invention;

[0037] Figure 12 For the present invention Figure 10 Enlarged view at point B in the middle;

[0038] Figure 13 For the present invention Figure 10 Enlarged view at point C;

[0039] Figure 14 For the present invention Figure 13 A schematic diagram showing the state change of the trigger plate.

[0040] In the picture:

[0041] 1. Frame; 2. Crusher; 21. Feeding area; 22. Crushing area; 23. Crushing wheel; 3. Auxiliary feeding assembly; 31. Mounting box; 32. Pressure plate; 321. Plate body; 322. Cavity; 323. Cover plate; 33. Rotating groove; 34. Rotating wheel; 35. Trigger plate; 36. Adjusting rod; 37. Insertion hole; 38. Insertion rod; 39. Return spring; 310. Connecting rope; 311. Mounting groove; 312. Positioning plate; 313. Positioning groove; 314. Connecting groove; 315. Fixing groove; 316. Connecting rod; 317. Fixing platform; 318. Buffer spring; 319. Storage groove; 320. Liner. Detailed Implementation

[0042] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0043] Example 1, referring to Figure 1-13 This is the first embodiment of the present invention, which provides a plastic pallet crushing device based on the comprehensive utilization of solid waste for environmental protection, for processing waste plastic pallets. It includes a frame 1, a crusher 2 set on the frame 1, the crusher 2 is divided into a feeding area 21 and a crushing area 22, the crushing area 22 is provided with a crushing wheel 23, and also includes an auxiliary feeding component 3 set on the outside of the crusher 2. The auxiliary feeding component 3 specifically includes a mounting box 31 set above the opening of the feeding area 21, and a pressure plate 32 is rotatably connected inside the mounting box 31.

[0044] Specifically, the frame 1 is configured as a two-tiered stepped structure. The crusher 2 is welded to the top of the second tier of the frame 1. An energy-saving motor is fixedly installed on the top of the first tier of the frame 1 with bolts. The energy-saving motor is connected to the crushing wheel 23 via a transmission belt. By using an energy-saving motor, the overall power consumption of the equipment is reduced. The transmission belt is made of polyurethane, which has the characteristics of high strength, good wear resistance, and high transmission efficiency. This also reduces the operating power consumption of the equipment to a certain extent. The mounting box 31 is fixed to the feeding area 21 with bolts. The pressure plate 32 is inclinedly set in the feeding area 21, dividing the internal space of the feeding area 21 into two. When the plastic pallet is fed, the pressure plate 32 is pushed upward, creating a sliding opening. The pressure plate 32 is made of aluminum alloy. The connection between the feeding area 21 and the crushing area 22 is set with a bending angle of not less than 120 degrees. That is, the crushing area 22 is set vertically, the feeding area 21 is inclined above the crushing area 22, and the sliding opening is located on the side of the crushing area 22, reducing the probability of the broken fragments splashing into the sliding opening.

[0045] By setting up the pressure plate 32, when the plastic pallet is placed, the plastic pallet pushes the pressure plate 32 upward to form a sliding opening. The plastic pallet enters the crushing zone 22 from the sliding opening, and the pressure plate 32 presses down on top of the plastic pallet. In this way, the pressure plate 32 restricts the plastic pallet, which can prevent the plastic pallet from moving too much and play a certain role in stabilizing it, improving crushing efficiency and extending the service life of the cutting tools. At the same time, the fragments that break off fly upward to the pressure plate 32 and are blocked by the pressure plate 32, thus ensuring processing safety.

[0046] Specifically, the pressure plate 32 includes a plate body 321, a cavity 322 formed on the upper surface of the plate body 321, and a cover plate 323 set at the opening of the cavity 322. The hollow design reduces the overall weight of the pressure plate 32 so as not to affect the sliding of the plastic pallet.

[0047] The auxiliary feeding assembly 3 also includes a liner 320 disposed between the mounting box 31 and the pressure plate 32, a rotating groove 33 formed on the lower surface of the pressure plate 32, a rotating wheel 34 disposed inside the rotating groove 33, a trigger plate 35 and an adjusting rod 36 disposed outside the rotating wheel 34, an insertion hole 37 formed on the plate body 321 near the mounting box 31, an insertion rod 38 disposed inside the insertion hole 37, a return spring 39 disposed between the insertion rod 38 and the inner wall of the insertion hole 37, and a spring 39 disposed between the insertion rod 38 and the adjusting rod 36. The components include a connecting rope 310, an installation groove 311 inside the liner 320, a positioning plate 312 inside the installation groove 311, a positioning groove 313 on the surface of the positioning plate 312 near the plate body 321, a fixing groove 315 on the outside of the liner 320, a connecting groove 314 between the fixing groove 315 and the installation groove 311, a connecting rod 316 on the side of the positioning plate 312 near the buffer spring 318, and a fixing platform 317 inside the fixing groove 315.

[0048] Specifically, the connection between the plate body 321 and the mounting box 31 is set to an arc shape. The rotating groove 33 extends to the lower surface of the plate body 321 and the inner wall of the cavity 322. The rotating wheel 34 is rotatably connected to the rotating groove 33. The main body of the rotating groove 33 is cylindrical, and the width of the openings on both sides of the rotating groove 33 is smaller than the diameter of the rotating groove 33. The trigger plate 35 is located on the outside of the plate body 321. The adjusting rod 36 is located inside the cavity 322. The insertion rod 38 extends into the cavity 322. A C-shaped wire clip is fixedly connected to the inner wall of the plate body 321. The connecting rope 310 slides through the wire clip. The insertion rod 38 can be inserted into the positioning groove 313. The mounting groove 311 is arc-shaped. The positioning plate 312 is attached to the outer wall of the plate body 321. The connecting rod 316 extends into the fixing groove 315 and is bolted into the fixing platform 317. The positioning groove 313 is distributed in a ring array along the surface contour of the positioning plate 312. The fixing platform 317 is slidably installed in the fixing groove 315.

[0049] By setting the auxiliary feeding component 3, when the plastic pallet is placed, the pressure plate 32 is pushed upward and rotates inside the liner 320. When the plastic pallet partially passes through the sliding opening and is about to enter the crushing zone 22, the trigger plate 35 is pushed downward by the plastic pallet and deflected. The connecting rope 310 releases the insert rod 38 so that it is inserted into the positioning groove 313, locking the pressure plate 32 and the plate body 321 together. This fixes the pressure plate 32 and provides a better binding effect on the plastic pallet.

[0050] Specifically, the length of the mounting groove 311 is greater than the length of the positioning plate 312, the length of the connecting groove 314 is greater than the length of the connecting rod 316, the length of the fixing groove 315 is greater than the length of the fixing platform 317, and buffer springs 318 are provided at both ends of the fixing platform 317. The fixing platform 317 has binding grooves at both ends, and the buffer springs 318 are fixed in the binding grooves.

[0051] By setting a buffer spring 318, the positioning plate 312 has a certain amount of room to move within the mounting groove 311. This ensures that the pressure plate 32 has sufficient binding force on the plastic pallet, while avoiding excessive resistance to the sliding of the plastic pallet by the pressure plate 32.

[0052] Specifically, storage grooves 319 are provided at the bottom of the plate body 321 and on the inner wall of the cavity 322. The storage grooves 319 extend into the rotation groove 33. The storage grooves 319 on the surface of the plate body 321 are located on the side of the rotation groove 33 away from the mounting box 31, and the storage grooves 319 on the inner wall of the cavity 322 are located on the side of the rotation groove 33 closer to the mounting box 31. The trigger plate 35 and the adjusting rod 36 can both be stored in the storage grooves 319.

[0053] Specifically, the weight of the adjusting rod 36 is greater than that of the trigger plate 35. Under the action of gravity, the adjusting rod 36 moves downward with the rotating wheel 34 as the fulcrum, and the trigger plate 35 is lifted. When the adjusting rod 36 moves downward, it pulls the insertion rod 38 through the connecting rope 310 to compress the reset spring 39, thus enabling the equipment to have an automatic reset function. The pulling force of the adjusting rod 36 on the insertion rod 38 through the connecting rope 310 is greater than the force required to compress the reset spring 39.

[0054] A row of hanging curtains is provided in the middle of the lower surface of the pressure plate 32. The hanging curtains are composed of linearly arranged plastic ribbons. When the hanging curtains are not affected by external forces, they are always perpendicular to the ground. This can block the sliding opening and prevent plastic fragments from splashing out when the plastic tray is much smaller than the feeding opening of the feeding area 21.

[0055] Example 2, refer to Figure 13 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the trigger plate 35 is limited by the opening angle of the rotating groove 33 and deflects upward to the maximum extent to remain perpendicular to the bottom wall of the feeding area 21, so that the placement state of the pressure plate 32 is more stable.

[0056] By setting the deflection angle of the limiting trigger plate 35, when the force direction of the plastic pallet is parallel to the bottom surface of the feeding area 21, the plastic pallet moves upward along the sliding opening. During this process, the trigger plate 35 will rotate upward and get stuck in the gap on the surface of the plastic pallet, making the plastic pallet unable to move upward, thus further restricting the plastic pallet.

[0057] Example 3, referring to Figure 14 This is the third embodiment of the present invention. The difference between this embodiment and the first embodiment is that the trigger plate 35 is limited by the opening angle of the rotating groove 33 and deflects upward to the maximum extent to remain perpendicular to the bottom wall of the plate body 321. This makes it easier to push the trigger plate 35 open when the plastic tray slides down, thus avoiding jamming.

[0058] The working principle of the plastic pallet crushing device based on the comprehensive utilization of solid waste for environmental protection in this invention is as follows:

[0059] During installation, apply lubricating oil to the outside of the rotating wheel 34 and squeeze it into the rotating groove 33. During this process, keep the adjusting rod 36 inserted into the cavity 322. Then, put the return spring 39 on the outside of the insert rod 38 and insert both into the insertion hole 37. One end of the insertion hole 37 passes through the cavity 322. Finally, use the connecting rope 310 to connect the insert rod 38 and the adjusting rod 36 and tighten the connecting rope 310.

[0060] Insert the positioning plate 312 into the mounting groove 311, so that the connecting rod 316 passes through the connecting groove 314 and enters the fixing groove 315. Then, fix the buffer spring 318 on both sides of the fixing platform 317, and then insert the fixing platform 317 into the fixing groove 315 and fix it to the connecting rod 316 with bolts. Place the inner liner 320 into the inner side of the mounting box 31 and fix it with bolts. Then, install the pressure plate 32 inside the inner liner 320. Finally, fix the mounting box 31 above the opening of the feeding area 21 and insert the pressure plate 32 into the feeding area 21.

[0061] In use, the pressure plate 32 is tilted downwards and placed in the feeding area 21 under the action of gravity. After the plastic tray is placed, the plastic tray slides down the bottom wall of the feeding area 21. When the plastic comes into contact with the pressure plate 32, the pressure plate 32 is pushed upwards, and a sliding opening is formed between the pressure plate 32 and the bottom wall of the feeding area 21. The plastic enters the sliding opening. When the plastic is about to slide out of the sliding opening, the plastic comes into contact with the trigger plate 35. The trigger plate 35 is pushed downwards. The downward tilt of the trigger plate 35 drives the adjusting rod 36 to tilt upwards through the rotating wheel 34. The connecting rope 310 becomes loose. The reset spring 39 pushes the insert rod 38 towards the inner liner 320. The insert rod 38 is inserted into the positioning groove 313. In this way, the size of the sliding opening below the pressure plate 32 is fixed.

[0062] The plastic pallet enters the crushing zone 22 through the sliding opening and is crushed by the crushing wheel 23. When the plastic pallet exerts too much force on the pressure plate 32, the pressure plate 32 can still shift upward a little. The upward shift of the pressure plate 32 drives the positioning plate 312 to shift through the insertion rod 38. The positioning plate 312 drives the fixed platform 317 to shift through the connecting rod 316 and compresses the buffer spring 318. Then the buffer spring 318 pushes the fixed platform 317 and the pressure plate 32 to reset.

[0063] It should be noted that 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 technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A plastic pallet crushing device based on the comprehensive utilization of solid waste for environmental protection, used for processing waste plastic pallets, comprising a frame, a crusher mounted on the frame, the crusher being divided into a feeding zone and a crushing zone, the crushing zone being equipped with crushing wheels, characterized in that: It also includes an auxiliary feeding assembly located outside the crusher. The auxiliary feeding assembly specifically includes a mounting box located above the opening of the feeding area, and a pressure plate is rotatably connected inside the mounting box. The pressure plate is inclinedly set in the feeding area and divides the internal space of the feeding area into two. When feeding a plastic pallet, the pressure plate is pushed upward to create a sliding opening. The pressure plate specifically includes a plate body, a cavity formed on the upper surface of the plate body, and a cover plate disposed at the opening of the cavity; The auxiliary feeding assembly also includes an inner liner disposed between the mounting box and the pressure plate, a rotating groove on the lower surface of the pressure plate, a rotating wheel disposed inside the rotating groove, a trigger plate and an adjusting rod disposed outside the rotating wheel, an insertion hole disposed at one end of the plate body near the mounting box, an insertion rod disposed inside the insertion hole, a reset spring disposed between the insertion rod and the inner wall of the insertion hole, a connecting rope disposed between the insertion rod and the adjusting rod, a mounting groove disposed inside the inner side of the inner liner, a positioning plate disposed inside the mounting groove, a positioning groove disposed on the surface of the positioning plate near the plate body, a fixing groove disposed outside the inner liner, a connecting groove disposed between the fixing groove and the mounting groove, a connecting rod disposed on the side of the positioning plate near the buffer spring, and a fixing platform disposed inside the fixing groove; The rotating groove extends to the lower surface of the plate and the inner wall of the cavity. The trigger plate is located on the outer side of the plate, the adjusting rod is located inside the cavity, the insert rod extends into the cavity, the connecting rod extends into the fixing groove and is bolted to the fixing platform. The positioning grooves are distributed in a ring array along the surface contour of the positioning plate.

2. The plastic pallet crushing device based on the comprehensive utilization of solid waste for environmental protection as described in claim 1, characterized in that: The length of the mounting groove is greater than the length of the positioning plate, the length of the connecting groove is greater than the length of the connecting rod, the length of the fixing groove is greater than the length of the fixing platform, and buffer springs are provided at both ends of the fixing platform.

3. The plastic pallet crushing device based on the comprehensive utilization of solid waste for environmental protection as described in claim 2, characterized in that: The bottom of the plate and the inner wall of the cavity are provided with storage grooves, which extend into the rotating groove. The storage groove on the surface of the plate is located on the side of the rotating groove away from the mounting box, and the storage groove on the inner wall of the cavity is located on the side of the rotating groove closer to the mounting box.

4. The plastic pallet crushing device based on the comprehensive utilization of solid waste for environmental protection as described in claim 3, characterized in that: The weight of the adjusting rod is greater than that of the trigger plate. Under the action of gravity, the adjusting rod moves downward with the rotating wheel as the fulcrum, and the trigger plate is lifted upward.

5. The plastic pallet crushing device based on the comprehensive utilization of solid waste for environmental protection as described in claim 4, characterized in that: The trigger plate is limited by the opening angle of the rotating slot, and it can be deflected upwards to the maximum extent until it is perpendicular to the bottom wall of the feeding area.

6. The plastic pallet crushing device based on the comprehensive utilization of solid waste for environmental protection as described in claim 4, characterized in that: The trigger plate is limited by the opening angle of the rotating slot, and can be deflected upwards to the maximum extent until it is perpendicular to the bottom wall of the plate.

7. The plastic pallet crushing device based on the comprehensive utilization of solid waste for environmental protection as described in claim 1, characterized in that: A row of hanging curtains is provided in the middle of the lower surface of the pressure plate.

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