Garden waste shredding machine and garden waste treatment system

Abstract

The utility model provides a garden waste shredder and a garden waste disposal system.The shredder comprises a rack, a shredding machine box and a feeding hopper are arranged on the rack, at least two shredding rollers are arranged in the shredding machine box, a first driving assembly is further arranged on the rack, and a fixing frame is further arranged on the rack; a movable frame and a second driving assembly are arranged on the fixed frame, a connecting rod is arranged on the movable frame and rotationally connected with a cover plate, a guide plate with a guide groove is further arranged on the fixed frame, a first roller is arranged on the connecting rod, and the guide groove comprises a linear section and a vertical section. The vertical section is located on the side, close to the feeding hopper, of the guide plate, and the linear section extends in the direction away from the feeding hopper. The utility model further provides a garden waste treatment system which comprises a first stock bin, a pulverizer, a second stock bin, a weighing machine, a fermentation bin and the garden waste shredding machine. The technical problem that chippings are splashed when the shredder shreds materials is solved, and the technical effect of preventing the material chippings from being splashed into the external environment is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of garden waste treatment, in particular to a garden waste shredder and a garden waste treatment system with the garden waste shredder. Background Art

[0002] Garden waste mainly refers to the plant residues produced by the natural fall of garden plants or artificial pruning, mainly including branches, leaves, grass clippings, etc. Its main components are cellulose, polysaccharides and lignin, etc. Garden waste can be recycled and fermented into organic fertilizer. When garden waste is processed into organic fertilizer, a shredder is usually used to break it up.

[0003] The Chinese utility model patent with publication number CN218250663U discloses a four-axis shredder for solid waste, including a discharging conveyor belt, a shredder box is provided on the top of one end of the discharging conveyor belt, a feed hopper is provided on the top of the shredder box, and two groups of shredding rollers are installed at the bottom of the feed hopper. A mounting groove is provided on one side of the shredder box, and two slide grooves are symmetrically provided on both sides of the top of the mounting groove. A filter screen is installed inside the mounting groove, and supporting slide plates are symmetrically provided on both sides of the top of the filter screen. The shredder box is also provided with a fixed groove on the same side as the mounting groove, and two limit grooves are symmetrically provided on the inner wall of the fixed groove, and two limit grooves are symmetrically provided on the inner wall of the fixed groove, and the limit grooves and the limit grooves are staggered. A movable rod is movably installed at one end of the filter screen, one end of the movable rod passes through the outside of the filter screen, and a limit block is provided at the end that passes through, and the other end of the movable rod passes into the filter screen, and two limit prisms are symmetrically provided on the surface of the passing end. The four-axis shredder for solid waste cooperates with the limit block and the spring. When the shredder is in use, the spring promptly resets the movable rod due to the vibration generated by the shredder, thereby preventing the filter from loosening.

[0004] Since the opening of the feed hopper of the above-mentioned four-axis shredder for solid waste is an open structure, when the above-mentioned four-axis shredder for solid waste is used to crush materials, the debris generated by the squeezing of the materials by the shredding rollers will splash out of the shredder from the opening of the feed hopper, causing environmental pollution and easily causing harm to the surrounding staff. Therefore, the existing shredders have hidden dangers. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a garden waste shredder and a garden waste treatment system having the garden waste shredder, which solves the problem of debris splashing when the shredder shreds materials in the prior art.

[0006] According to an embodiment of the utility model, a garden waste shredder comprises a frame, a shredder box and a feed hopper connected to the shredder box are arranged on the frame, at least two rotatable shredder rollers are arranged in the shredder box, a first drive assembly is arranged on the frame and the first drive assembly is connected to the shredder rollers in a transmission manner, a fixed frame is arranged on the frame, a movable frame movable in a horizontal direction and a second drive assembly connected to the movable frame in a transmission manner are arranged on the fixed frame, a rotatable connecting rod is arranged on the movable frame and a cover plate is rotatably connected to the end of the connecting rod away from the movable frame, and the fixed frame The frame is also provided with a guide plate with a guide groove, and the end of the connecting rod away from the movable frame is provided with a first roller matching the guide groove, the guide groove includes a straight section and a vertical section, the vertical section is located on the side of the guide plate close to the feed hopper, and the straight section is connected to the end of the vertical section away from the feed hopper and extends in the direction away from the feed hopper, the second driving component drives the movable frame to move on the fixed frame, drives the first roller to slide in the guide groove and makes the cover plate approach or move away from the feed hopper, and when the first roller abuts against the end of the vertical section away from the straight section, the cover plate covers the opening of the feed hopper.

[0007] Furthermore, the first driving assembly includes a motor and a reduction box drivingly connected to an output end of the motor, and a driven shaft of the reduction box is drivingly connected to the shredding roller.

[0008] Furthermore, a first pulley is provided at the output end of the motor, a second pulley is provided on the driving shaft of the reduction box, and the first pulley and the second pulley are connected by a transmission belt.

[0009] Furthermore, the first driving assembly further comprises a transmission shaft, one of the two opposite ends of which is matched with the driven shaft of the reduction box, and the other end is matched with the shredding roller.

[0010] Furthermore, the second driving assembly includes a cylinder and a telescopic rod arranged at the output end of the cylinder, the cylinder is fixedly arranged on the fixed frame, the telescopic direction of the telescopic rod is consistent with the moving direction of the movable frame, and the end of the telescopic rod away from the cylinder is fixedly connected to the movable frame.

[0011] Furthermore, the fixed frame is provided with a slide groove, the length direction of the slide groove is consistent with the moving direction of the movable frame, and the movable frame is provided with a second roller matched with the slide groove.

[0012] Furthermore, the movable frame is rotatably connected with four connecting rods, the cover plate is provided with four connecting seats, and the four connecting seats are arranged in a matrix on the cover plate, and the connecting rods are rotatably connected with the connecting seats in a one-to-one correspondence.

[0013] Furthermore, two guide plates are spaced apart on the fixing frame, the two guide plates are respectively located on the opposite sides of the cover plate, and the guide grooves are respectively provided on the surfaces of the two cover plates close to each other, and the first rollers are respectively provided on the two connecting rods close to the opposite sides of the cover plates, and the first rollers correspond to the guide grooves one by one.

[0014] Furthermore, a step portion is provided at the opening of the feed hopper and the step portion is arranged around the opening of the feed hopper, and the cover plate fits with the step portion when covering the opening of the feed hopper.

[0015] On the other hand, according to an embodiment of the utility model, a garden waste treatment system is also provided, comprising a first silo, a crusher, a second silo, a weighing machine and a fermentation silo connected in sequence, and also comprising the above-mentioned garden waste shredder, which is connected to the first silo.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model adopts a second driving member to drive the movable frame to move on the fixed frame and drive the cover plate to move the cover plate to a position covering the opening of the feed hopper or away from the feed hopper. When the cover plate covers the opening of the feed hopper, the opening of the feed hopper is closed, thereby preventing the debris generated when the material is shredded in the shredder box from splashing into the external environment from the opening of the feed hopper. When it is necessary to add material to the shredder box, the cover plate is moved away from the feed hopper to open the feed hopper. When the feed hopper is closed, the first roller moves along the guide groove as the movable frame moves on the fixed frame. The first roller first moves horizontally in the straight line segment. The first roller moves in the vertical direction and drives the cover plate to move in the horizontal direction. The first roller moves to the middle of the vertical section and then descends along the vertical section. At this time, the connecting rod rotates and drives the cover plate and the first roller to descend synchronously until the cover plate extends into the feed hopper to cover the opening of the feed hopper, ensuring that the opening of the feed hopper is completely closed. When the feed hopper is opened, the first roller first rises along the vertical section and then moves along the horizontal section away from the feed hopper, thereby driving the cover plate to rise first and then move in the horizontal direction to make the cover plate withdraw from the feed hopper, preventing the cover plate from colliding with the feed hopper during the withdrawal process, thereby solving the technical problem of debris splashing when the existing shredder shreds materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of the garden waste shredder in Embodiment 1 of the present utility model when the feed hopper is opened.

[0019] Figure 2 This is a cross-sectional view of the garden waste shredder according to Embodiment 1 of the present utility model when the feed hopper is opened.

[0020] Figure 3This is a schematic structural diagram of the garden waste shredder in Embodiment 1 of the utility model when the feed hopper is closed.

[0021] Figure 4 This is a cross-sectional view of the garden waste shredder in Embodiment 1 of the present utility model when the feed hopper is closed.

[0022] Figure 5 The present invention is a schematic structural diagram of a fixing frame in a garden waste shredder according to a first embodiment of the present invention.

[0023] Figure 6 The present invention is a schematic structural diagram of a movable frame in a garden waste shredder according to a first embodiment of the present invention.

[0024] Figure 7 This is a schematic diagram of the structure of a garden waste treatment system according to Embodiment 2 of the present utility model.

[0025] In the above drawings: 1, frame; 2, shredder box; 21, shredder roller; 3, feed hopper; 31, step portion; 4, first drive assembly; 41, motor; 42, reduction box; 43, transmission belt; 44, transmission shaft; 5, fixed frame; 51, guide plate; 52, guide groove; 53, straight section; 54, vertical section; 55, slide; 6, movable frame; 61, connecting rod; 62, cover plate; 63, first roller; 64, second roller; 7, second drive assembly; 71, cylinder; 72, telescopic rod; 101, garden waste shredder; 102, first silo; 103, pulverizer; 104, second silo; 105, weighing machine; 106, fermentation silo; 107, micro powder storage silo; 108, first conveyor; 109, second conveyor; 110, third conveyor; 111, fourth conveyor. DETAILED DESCRIPTION

[0026] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0027] Embodiment 1

[0028] like Figures 1 to 6 As shown, the first embodiment of the utility model proposes a garden waste shredder for crushing garden waste materials such as branches, leaves, grass clippings, etc., so as to facilitate the subsequent use of the garden waste to ferment biological organic fertilizer and realize the recycling of garden waste.

[0029] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4The garden waste shredder includes a frame 1, on which a shredder box 2 and a feed hopper 3 connected to the shredder box 2 are provided. At least two rotatable shredder rollers 21 are arranged in the shredder box 2. The frame 1 is also provided with a first driving component 4 that is transmission-connected to the shredder rollers 21. The shredder rollers 21 are driven by the first driving component 4 to rotate so as to shred the materials placed in the shredder box 2. The frame 1 is also provided with a fixed frame 5, the fixed frame 5 is provided with a movable frame 6 which can be moved in the horizontal direction and a second driving assembly 7 which is transmission-connected to the movable frame 6, the movable frame 6 is provided with a rotatable connecting rod 61, and the end of the connecting rod 61 away from the movable frame 6 is rotationally connected to a cover plate 62, the fixed frame 5 is also provided with a guide plate 51, the guide plate 51 is provided with a guide groove 52, and the end of the connecting rod 61 away from the movable frame 6 is provided with a first roller 63 which matches the guide groove 52, the guide groove 52 includes a straight section 53 and a vertical section 54, wherein the vertical section 54 is located on the side of the guide plate 51 close to the feed hopper 3, and the straight section 53 is connected with the end of the vertical section 54 away from the feed hopper 3 and extends in the direction away from the feed hopper 3. When the second driving member drives the movable frame 6 to move on the fixed frame 5, it drives the first roller 63 to slide in the guide groove 52 and makes the cover plate 62 approach or move away from the feed hopper 3. When the first roller 63 abuts against the end of the vertical section 54 away from the straight section 53, the cover plate 62 covers the opening of the feed hopper 3 and closes the feed hopper 3. When the first roller 63 moves along the straight section 53 in the direction away from the feed hopper 3, the cover plate 62 moves away from the opening of the feed hopper 3 to open the feed hopper 3.

[0030] Specifically, the operating steps of using the garden waste shredder provided in this embodiment to process materials are as follows: first, pour the material to be shredded into the shredder box 2 from the opening of the feed hopper 3, start the second driving member to drive the movable frame 6 to move in the direction close to the feed hopper 3 and drive the connecting rod 61 and the cover plate 62 to move synchronously, while the connecting rod 61 moves, the first roller 63 slides in the guide groove 52, and when the first roller 63 slides in the straight section 53, the connecting rod 61 pulls the cover plate 62 to move in the horizontal direction, and when the first roller 63 enters the vertical section 54, as the movable frame 6 continues to move, the first roller 63 descends in the vertical section 54 to cause the connecting rod 61 to rotate relative to the movable frame 6, and drives the cover plate 62 to descend in the vertical direction to make the cover plate 62 close to the opening of the feed hopper 3, and the first roller 63 moves to the vertical section 54. After the straight section 54 abuts against one end away from the straight section 53, the second driving member stops running. At this time, the cover plate 62 covers the opening of the feed hopper 3 and closes the feed hopper 3. Starting the first driving component 4 drives the shredding roller 21 to rotate to crush the material in the shredding box 2, and the cover plate 62 is used to prevent the fragments generated when the material is crushed from splashing into the external environment; the material after crushing falls from the bottom of the shredding box 2, and the movable frame 6 is driven by the second driving member to move in the opposite direction. With the movement of the movable frame 6, the first roller 63 first rises along the vertical section 54, and then moves horizontally along the straight section 53 away from the feed hopper 3, thereby driving the cover plate 62 to first rise in the vertical direction to exit the feed hopper 3, and then move away from the feed hopper 3 in the horizontal direction. At this time, the feed hopper 3 is open, and material can be added to the shredder box 2 through the feed hopper 3. The garden waste shredder provided in this embodiment can effectively prevent the debris generated during the material crushing process from splashing into the external environment, thereby ensuring that the processing environment remains clean and tidy while protecting the personal safety of the operator. The feed hopper 3 can be automatically opened or closed by moving the cover plate 62, and the operation is simple and easy to use.

[0031] like Figure 1 and Figure 3 As shown, in this embodiment, the first driving assembly 4 includes a motor 41 and a reduction box 42 that is transmission-connected to the output end of the motor 41, and the driven shaft of the reduction box 42 is transmission-connected to the shredding roller 21. The reduction box is used to transmit the power output by the motor 41 to the shredding roller 21, and reduce the rotation speed and increase the torque to ensure that the shredding roller 21 effectively shreds the material in the shredding machine box 2 during the rotation process, and avoids the shredding roller 21 being stuck by the material due to too small torque, which affects the normal operation of the garden waste shredder.

[0032] In detail, the output end of the motor 41 is provided with a first pulley, the driving shaft of the reduction box 42 is provided with a second pulley, and the first pulley and the second pulley are connected by a transmission belt 43. The first pulley and the second pulley are rotatably connected by the transmission belt 43 to transmit the power output by the motor 41 to the driving shaft of the reduction box 42, so that the power is smoothly input into the reduction box 42, which is conducive to improving the stability of the operation of the garden waste shredder.

[0033] like Figure 3 As shown, the first driving assembly 4 further includes a transmission shaft 44, one of the two opposite ends of which is matched with the driven shaft of the reduction box 42, and the other end is matched with the shredding roller 21. The transmission shaft 44 is used to connect the driven shaft of the reduction box 42 and the shredding roller 21 to ensure reliable matching between the shredding roller 21 and the reduction box 42, to prevent the shredding roller 21 from being separated from the reduction box 42 during operation, and to make the overall structure of the garden waste shredder stable and reliable.

[0034] Please refer to Figure 1 and Figure 3 In this embodiment, the second driving assembly 7 includes a cylinder 71 and a telescopic rod 72 arranged at the output end of the cylinder 71. The cylinder 71 is fixedly arranged on the fixed frame 5. The telescopic direction of the telescopic rod 72 is consistent with the moving direction of the movable frame 6, and the end of the telescopic rod 72 away from the cylinder 71 is fixedly connected to the movable frame 6. The telescopic rod 72 is driven by the cylinder 71 to extend or retract into the cylinder 71, and the movable frame 6 can be driven to move on the fixed frame 5 through the movement of the telescopic rod 72. When the telescopic rod 72 extends out of the cylinder 71, the telescopic rod 72 pushes the movable frame 6 to move in the direction close to the upper hopper. When the telescopic rod 72 is retracted into the cylinder 71, the telescopic rod 72 pulls the movable frame 6 to move in the direction away from the upper hopper, thereby controlling the moving direction of the movable frame 6 to switch the feed hopper 3 between the closed state and the open state, which is convenient for controlling the garden waste shredder.

[0035] Please combine Figure 1 , Figure 5 and Figure 6, the fixed frame 5 is provided with a slide groove 55, the length direction of the slide groove 55 is consistent with the moving direction of the movable frame 6, and the movable frame 6 is provided with a second roller 64 that cooperates with the slide groove 55. The moving direction of the movable frame 6 on the fixed frame 5 is limited by the cooperation between the slide groove 55 and the second roller 64, so as to prevent the movable frame 6 from deviating from the preset direction when moving, and the second roller 64 is provided on the movable frame 6 to reduce the friction between the movable frame 6 and the fixed frame 5, so that the movable frame 6 can move smoothly on the fixed frame 5.

[0036] like Figure 3 , Figure 4 and Figure 6 As shown, the movable frame 6 is rotatably connected with four connecting rods 61, the cover plate 62 is provided with four connecting seats and the four connecting seats are arranged in a matrix on the cover plate 62, and the connecting rods 61 are rotatably connected with the connecting seats in a one-to-one correspondence. The four connecting seats are provided on the cover plate 62 and respectively matched with the four connecting rods 61 on the movable frame 6 in a one-to-one correspondence, which is conducive to improving the stability of the matching between the cover plate 62 and the movable frame 6 while keeping the cover plate 62 horizontal during the movement, ensuring that the cover plate 62 fits the feed hopper 3, and avoiding the tilt of the cover plate 62, resulting in a gap between the cover plate 62 and the feed hopper 3, causing the debris in the shredder chassis 2 to splash from the gap into the external environment.

[0037] Specifically, two guide plates 51 are arranged at intervals on the fixing frame 5, and the two guide plates 51 are respectively located on opposite sides of the cover plate 62, and the guide grooves 52 are respectively arranged on the surfaces of the two cover plates 62 close to each other, and the first rollers 63 are respectively arranged on the two connecting rods 61 close to the opposite sides of the cover plate 62, and the first rollers 63 are matched with the guide grooves 52 in a one-to-one correspondence. By arranging the guide plates 51 on opposite sides of the cover plate 62 and matching with the first rollers 63 on both sides of the cover plate 62 in a one-to-one correspondence and supporting the cover plate 62, it is ensured that the cover plate 62 moves in a preset direction, and it is beneficial to improve the stability of the cover plate 62 when it moves, and prevent the cover plate 62 from colliding with other parts of the garden waste shredder after tilting during the operation, thereby improving the stability of the garden waste shredder in operation.

[0038] Please combine Figure 1 , Figure 2 and Figure 4The opening of the feed hopper 3 is provided with a step portion 31 and the step portion 31 is arranged around the opening of the feed hopper 3. When the cover plate 62 covers the opening of the feed hopper 3, it fits with the step portion 31. The step portion 31 arranged at the opening of the feed hopper 3 is used to support the cover plate 62. When the cover plate 62 moves to a position to close the opening of the feed hopper 3, the cover plate 62 fits with the step portion 31, so that the position of the cover plate 62 on the feed hopper 3 remains stable, and it is beneficial to improve the sealing of the feed hopper 3 when the feed hopper 3 is closed, so as to prevent material debris from being ejected outside the feed hopper 3 when splashing.

[0039] Embodiment 2

[0040] like Figure 7 As shown, the second embodiment of the present utility model proposes a garden waste treatment system, including the garden waste shredder 101 of the first embodiment.

[0041] like Figure 7 As shown, the garden waste treatment system also includes a first silo 102, a crusher 103, a second silo 104, a weighing machine 105 and a fermentation silo 106 which are connected in sequence. The garden waste shredder 101 is connected to the first silo 102. The garden waste treatment system also includes a first conveyor 108, a second conveyor 109, a third conveyor 110 and a fourth conveyor 111. The first conveyor 108 is used to convey materials into the garden waste shredder 101, the second conveyor 109 is used to send the materials shredded by the garden waste shredder 101 into the first silo 102, the third conveyor 110 is used to send the materials in the second silo 104 that are further crushed by the crusher into the weighing machine 105, and the fourth conveyor 111 is used to input the quantitative materials weighed by the weighing machine 105 into the fermentation silo 106.

[0042] Specifically, the working process of the garden waste treatment system provided in this embodiment is as follows: the first conveyor 108 inputs the collected garden waste into the garden waste shredder 101 for crushing, the crushed material falls on the second conveyor 109 and is sent to the first silo 102 by the second conveyor 109, the material in the first silo 102 falls into the pulverizer under the action of gravity for further crushing and the crushed material is input to the second silo 104 for storage, the material in the second silo 104 is sent to the weighing machine 105 by the third conveyor 110 for weighing, and the weighing machine 105 and the fourth conveyor 111 cooperate to send a certain amount of material into the fermentation bin 106 for fermentation, and after the fermentation is completed, the biological organic fertilizer made from the garden waste can be taken out from the fermentation bin 106. The first silo 102, the crusher, the second silo 104, the weighing machine 105, the fermentation silo 106, the first conveyor 108, the second conveyor 109, the third conveyor 110 and the fourth conveyor 111 used in the garden waste treatment system of this embodiment are all existing equipment.

[0043] Please refer to Figure 7 The garden waste treatment system also includes a micro-powder storage bin 107. A vacuum cleaner is provided in the second bin 104. The vacuum cleaner is used to extract the dust generated after the material is crushed into the micro-powder storage bin 107 for storage to prevent the dust from spreading to the surrounding environment during the transportation of the material and causing environmental pollution.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A garden waste shredder, comprising a frame, a shredder box and a feed hopper connected to the shredder box are arranged on the frame, at least two rotatable shredder rollers are arranged in the shredder box, a first drive assembly is also arranged on the frame and the first drive assembly is drivingly connected to the shredder rollers, characterized in that: The frame is also provided with a fixed frame, the fixed frame is provided with a movable frame which can be moved in a horizontal direction and a second driving assembly which is transmission-connected to the movable frame, the movable frame is provided with a rotatable connecting rod and the end of the connecting rod away from the movable frame is rotatably connected to a cover plate, the fixed frame is also provided with a guide plate with a guide groove and the end of the connecting rod away from the movable frame is provided with a first roller which cooperates with the guide groove, the guide groove includes a straight section and a vertical section, the vertical section is located on a side of the guide plate close to the feed hopper and the straight section is connected to an end of the vertical section away from the feed hopper and extends in a direction away from the feed hopper, the second driving assembly drives the movable frame to move on the fixed frame, drives the first roller to slide in the guide groove and makes the cover plate close to or away from the feed hopper, and when the first roller abuts against the end of the vertical section away from the straight section, the cover plate covers the opening of the feed hopper.

2. A garden waste shredder according to claim 1, characterized in that: The first driving assembly includes a motor and a reduction box drivingly connected to the output end of the motor, and a driven shaft of the reduction box is drivingly connected to the shredding roller.

3. A garden waste shredder as claimed in claim 2, characterized in that: A first pulley is provided at the output end of the motor, a second pulley is provided on the driving shaft of the reduction box, and the first pulley and the second pulley are connected by a transmission belt.

4. A garden waste shredder as claimed in claim 2, characterized in that: The first driving assembly further comprises a transmission shaft, one of the two opposite ends of which is matched with the driven shaft of the reduction box and the other end is matched with the shredding roller.

5. A garden waste shredder as claimed in claim 1, characterized in that: The second driving assembly includes a cylinder and a telescopic rod arranged at the output end of the cylinder. The cylinder is fixedly arranged on the fixed frame. The telescopic direction of the telescopic rod is consistent with the moving direction of the movable frame, and the end of the telescopic rod away from the cylinder is fixedly connected to the movable frame.

6. A garden waste shredder as claimed in claim 1, characterized in that: The fixed frame is provided with a slide groove, the length direction of the slide groove is consistent with the moving direction of the movable frame, and the movable frame is provided with a second roller matched with the slide groove.

7. A garden waste shredder according to claim 1, characterized in that: The movable frame is rotatably connected with four connecting rods, the cover plate is provided with four connecting seats, and the four connecting seats are arranged in a matrix on the cover plate, and the connecting rods are rotatably connected with the connecting seats in a one-to-one correspondence.

8. A garden waste shredder as claimed in claim 7, characterized in that: Two guide plates are spaced apart on the fixing frame, the two guide plates are respectively located at opposite sides of the cover plate, and the guide grooves are respectively provided on one side of the two cover plates close to each other, and the first rollers are respectively provided on the two connecting rods close to the opposite sides of the cover plates, and the first rollers are matched with the guide grooves one by one.

9. The garden waste shredder according to claim 1, characterized in that: A step portion is provided at the opening of the feed hopper and the step portion is arranged around the opening of the feed hopper, and the cover plate fits with the step portion when covering the opening of the feed hopper.

10. A garden waste treatment system, comprising a first silo, a crusher, a second silo, a weighing machine and a fermentation silo connected in sequence, characterized in that: It also comprises the garden waste shredder according to any one of claims 1 to 9, wherein the garden waste shredder is connected to the first silo.

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