A garbage crushing and processing device for environmental protection engineering

Abstract

The present invention relates to the technical field of crushing and processing, and discloses a garbage crushing and processing device for environmental protection engineering, including a crushing box and a feeding port arranged on the top of the crushing box, and also including a crushing unit arranged inside the crushing box and extrusion units symmetrically arranged on both sides of the crushing unit; the crushing unit includes a driving assembly arranged inside the crushing box, and a crushing assembly arranged on one side of the driving assembly; the driving assembly includes a driving motor arranged on one side of the crushing box, a first linkage tooth arranged on one side of the output shaft of the driving motor, and a driving chain arranged on one side of the first linkage tooth. During the crushing rotation process, larger garbage can slide in along the side of the crushing teeth, which is beneficial to improving the crushing efficiency of the garbage, and the setting of the extrusion block allows the crushing teeth to exert force through the extrusion block when rotating, so as to apply extrusion force to a certain part of the garbage, so that the garbage can be quickly crushed.

Description

Technical Field

[0001] The present invention relates to the technical field of crushing and processing, and in particular to a garbage crushing and processing device used in environmental protection projects. Background Art

[0002] The garbage crushing and processing device in environmental protection projects is an important tool that can help effectively process various types of garbage, thereby reducing the impact on the environment. However, there are some limitations in existing garbage crushing and processing devices, which make them not ideal in some cases. There are some problems with the existing garbage crushing and processing devices used in environmental protection projects, the biggest of which is the lack of a squeezing function for the garbage. Existing crushing and processing devices usually work on the principle of self-feeding, that is, the garbage falls freely from above and is drawn into the crushing drum for crushing. However, due to the lack of a squeezing device, this method will lead to the following problems:

[0003] 1. Garbage blockage: Since there is no squeezing device in the crushing process, the garbage is not squeezed into a smaller volume before entering the crushing drum. Therefore, during the crushing process, the garbage may accumulate in the drum and form a blockage, resulting in the suspension of the crushing process and equipment failure.

[0004] 2. Incomplete crushing: Due to the lack of squeezing devices, the garbage may not be completely crushed due to its size and shape when entering the crushing drum. This means that the garbage in the crushing process may gather in the drum and form unbroken parts, which may continue to interfere with other ongoing crushing processes, resulting in incomplete crushing and inefficiency.

[0005] 3. Splashing: Due to the lack of a squeezing device, the impact force during the crushing process will cause the garbage to splash around, causing damage to the equipment and the surrounding environment. At the same time, the splashing garbage may also interfere with the crushing process, causing further blockages and other problems.

[0006] In summary, the existing garbage crushing and processing devices used in environmental protection projects lack a device for squeezing garbage during the crushing process, which is an important reason for garbage blockage, incomplete crushing, splashing, etc. Therefore, it is necessary to design a garbage crushing and processing device with a squeezing function to solve these problems and improve the crushing efficiency. Summary of the invention

[0007] In view of the problem in the prior art that the garbage crushing and processing device lacks a device for squeezing the garbage during the crushing process, which leads to garbage blockage, incomplete crushing and splashing, a garbage crushing and processing device for environmental protection engineering is proposed.

[0008] Its purpose is to squeeze the garbage during the garbage crushing process so that the garbage can be squeezed into the crushing teeth, avoiding garbage blockage, incomplete crushing and splashing, and improving crushing efficiency.

[0009] The technical solution of the present invention is a garbage crushing and processing device for environmental protection engineering, comprising a crushing box and a feeding port arranged on the top of the crushing box, and also comprising a crushing unit arranged inside the crushing box and extrusion units symmetrically arranged on both sides of the crushing unit;

[0010] The crushing unit includes a driving assembly arranged inside the crushing box, and a crushing assembly arranged on one side of the driving assembly;

[0011] The driving assembly includes a driving motor arranged on one side of the crushing box, a first linkage tooth arranged on one side of the output shaft of the driving motor, a driving chain arranged on one side of the first linkage tooth, a second linkage tooth arranged on one side of the driving chain, a first rotating column arranged in the middle of the second linkage tooth, a driving tooth arranged on the first rotating column, a driven tooth arranged on one side of the driving tooth, and a second rotating column arranged on one side of the driven tooth;

[0012] The crushing unit is used for crushing the input garbage, and the squeezing unit is used for squeezing the garbage during the crushing process to facilitate better crushing.

[0013] Furthermore, the crushing assembly includes crushing teeth which are respectively arranged in a linear array on the first rotating column and the second rotating column, and the overall shape of the crushing teeth is triangular, and an extrusion block is arranged at each corner of the crushing teeth.

[0014] Further, the extrusion unit includes a mobile frame arranged inside the crushing box, a mobile assembly arranged at the bottom of the mobile frame, an extrusion assembly arranged at the top of the mobile assembly, and a transmission assembly arranged between the mobile assembly and the extrusion assembly;

[0015] The moving assembly includes a reciprocating screw rod arranged in the crushing box on one side of the moving frame, a first rotating tooth arranged at one end of the first rotating column, a second rotating tooth arranged on one side of the first rotating tooth, and the middle part of the second rotating tooth is fixedly connected to one end of the reciprocating screw rod, a reciprocating plate arranged on one side of the reciprocating screw rod, the top of the reciprocating plate passes through the top of the moving frame and is fixedly connected to the moving plate, and a rotating rod arranged on the top of one side of the moving plate.

[0016] Furthermore, the transmission assembly includes a driving conical tooth arranged at the other end of the reciprocating screw rod, a driven conical tooth arranged on one side of the driving conical tooth, a connecting rod arranged at the top of the driven conical tooth and passing through one side of the moving frame, a first transmission tooth arranged at the top of the connecting rod, a fixed rod arranged at the top of the other end of the moving frame, a second transmission tooth arranged at the top of the fixed rod, a third transmission tooth arranged at the top of the rotating rod, and the first transmission tooth, the second transmission tooth and the third transmission tooth are transmission-connected by a transmission chain.

[0017] Furthermore, the extrusion assembly includes a sliding member arranged on the rotating rod, an extrusion member arranged on one side of the sliding member, sliding guide strips arranged in a linear array on the surface of the sliding member, and a rotating extrusion strip arranged on the surface of the extrusion member.

[0018] Furthermore, the opposite sides of the sliding member and the extruding member are both inclined, and the inclination angle formed by the side wall of the sliding member and the horizontal plane is greater than the inclination angle formed by the side wall of the extruding member and the horizontal plane.

[0019] Furthermore, the radius of the sliding member is smaller than the radius of the extruding member, and the thickness of the sliding guide strip is smaller than the thickness of the rotating extruding strip.

[0020] Furthermore, extrusion angles are symmetrically arranged on both sides of the top of the extrusion member, and toggle angles are symmetrically arranged on the bottom of the sliding member.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. During crushing, the first rotating column and the second rotating column drive the crushing teeth to rotate, so that the crushing teeth roll the garbage into the middle of the crushing assembly to squeeze and tear the garbage. The triangular crushing teeth can crush large volumes of garbage. During the crushing rotation process, larger garbage can slide along the sides of the crushing teeth, which is beneficial to improving the crushing efficiency of the garbage. The setting of the extrusion block allows the crushing teeth to squeeze and exert force through the extrusion block when rotating, thereby applying extrusion force to a certain part of the garbage, so that the garbage can be quickly crushed.

[0023] 2. When the extrusion component rotates, the garbage falling from the feeding port falls on the sliding piece. The setting of the sliding piece can guide the falling connection so that the garbage falls into the middle of the crushing teeth on both sides. The setting of the sliding guide strip is used to disperse the fallen garbage horizontally to prevent the garbage from falling directly onto the crushing component when it falls from a certain place in the feeding port, causing garbage blockage and accumulation, which can improve the dispersion and crushing efficiency of the garbage.

[0024] 3. The setting of the rotating extrusion bar allows one side of the rotating extrusion bar to squeeze the garbage during the rotation process when the extrusion piece rotates. The rotating extrusion bar is inclined. During the rotation process, the extrusion pieces and the rotating extrusion bar on both sides rotate synchronously towards each other to squeeze the garbage, so that the garbage can be squeezed toward the middle of the crushing component, thereby improving the crushing extrusion force and crushing efficiency.

[0025] 4. The setting of the rotating extrusion bar allows one side of the rotating extrusion bar to squeeze the garbage during the rotation process when the extrusion piece rotates. The rotating extrusion bar is inclined. During the rotation process, the extrusion pieces and the rotating extrusion bar on both sides rotate synchronously and squeeze the garbage towards each other, so that the garbage can be squeezed toward the middle of the crushing component, thereby improving the crushing extrusion force and crushing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall appearance of the crushing box of the present invention;

[0027] Figure 2 It is a schematic diagram of the overall internal structure of the present invention;

[0028] Figure 3 It is a schematic diagram of the overall structure of the driving assembly of the present invention;

[0029] Figure 4 It is a schematic diagram of the three-dimensional structure of the crushing tooth of the present invention;

[0030] Figure 5 It is a schematic diagram of the overall structure of the extrusion unit of the present invention;

[0031] Figure 6 It is a schematic diagram of the overall structure of the mobile assembly of the present invention;

[0032] Figure 7 It is a three-dimensional structural schematic diagram of the transmission assembly of the present invention;

[0033] Figure 8 It is a schematic diagram of the overall structure of the extrusion assembly of the present invention.

[0034] In the figure:

[0035] 1. Crushing box; 2. Feeding port; 3. Driving assembly; 31. Driving motor; 32. First linkage tooth; 33. Second linkage tooth; 34. First rotating column; 35. Driving tooth; 36. Driven tooth; 37. Second rotating column; 4. Crushing assembly; 41. Crushing tooth; 42. Extrusion block; 5. Moving frame; 6. Moving assembly; 61. Reciprocating screw rod; 62. First rotating tooth; 63. Second rotating tooth; 64. Reciprocating plate; 65. Moving plate; 66. Rotating rod; 7. Transmission assembly; 71. Driving conical tooth; 72. Driven conical tooth; 73. Connecting rod; 74. First transmission tooth; 75. Fixed rod; 76. Second transmission tooth; 77. Third transmission tooth; 78. Transmission chain; 8. Extrusion assembly; 81. Sliding member; 82. Extrusion member; 83. Sliding guide strip; 84. Rotating extrusion strip; 85. Extrusion angle; 86. Toggle angle. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0037] Example 1, reference Figure 1-Figure 3 , which is the first embodiment of the present invention, provides a garbage crushing and processing device for environmental protection engineering, including a crushing box 1 and a feeding port 2 installed on the top of the crushing box 1, and also includes a crushing unit installed inside the crushing box 1 and an extrusion unit symmetrically installed on both sides of the crushing unit; the crushing unit includes a driving assembly 3 installed inside the crushing box 1, and a crushing assembly 4 installed on one side of the driving assembly 3; the driving assembly 3 includes a driving motor 31 installed on one side of the crushing box 1, a first linkage tooth 32 fixedly connected to one side of the output shaft of the driving motor 31, a driving chain transmission-connected to one side of the first linkage tooth 32, a second linkage tooth 33 transmission-connected to one side of the driving chain, a first rotating column 34 fixedly connected to the middle of the second linkage tooth 33, a driving tooth 35 fixedly connected to the first rotating column 34, a driven tooth 36 meshingly connected to one side of the driving tooth 35, and a second rotating column 37 fixedly connected to one side of the driven tooth 36; the crushing unit is used to crush the input garbage, and the extrusion unit is used for the crushing unit to squeeze the garbage during the crushing process to facilitate better crushing.

[0038] Specifically, the crushing unit is provided to crush the garbage put into the crushing box 1. During the crushing process, in order to improve the crushing efficiency of the garbage, the extrusion unit is used to squeeze the garbage downward during the crushing process so that the garbage can be better crushed. When the driving component 3 is working, the driving motor 31 is started, so that the first linkage tooth 32 rotates, driving the driving chain to rotate, so that the second linkage tooth 33 drives the first rotating column 34 to rotate, the first rotating column 34 rotates to drive the driving tooth 35 to rotate, the driving tooth 35 drives the driven tooth 36 to rotate, the driven tooth 36 drives the second rotating column 37 to rotate, the first rotating column 34 and the second rotating column 37 synchronously drive the crushing component 4 to rotate in opposite directions, so that the garbage falling into the crushing component 4 is crushed.

[0039] Reference Figure 1-Figure 4 The crushing assembly 4 includes crushing teeth 41 fixedly connected to the first rotating column 34 and the second rotating column 37 in a linear array, and the overall shape of the crushing teeth 41 is triangular, and an extrusion block 42 fixedly connected at each corner of the crushing teeth 41.

[0040] Specifically, during crushing, the first rotating column 34 and the second rotating column 37 drive the crushing teeth 41 to rotate, so that the crushing teeth 41 roll the garbage into the middle of the crushing assembly 4, thereby squeezing and tearing the garbage. The triangular crushing teeth 41 can crush large volumes of garbage. During the crushing rotation process, larger garbage can slide along the sides of the crushing teeth 41, which is beneficial to improving the crushing efficiency of the garbage. The setting of the extrusion block 42 enables the crushing teeth 41 to squeeze and exert force through the extrusion block 42 when rotating, thereby exerting extrusion force on a certain part of the garbage, so that the garbage can be quickly crushed.

[0041] Example 2, reference Figure 1-Figure 6 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the extrusion unit includes a mobile frame 5 fixedly connected to the inside of the crushing box 1, a mobile assembly 6 installed at the bottom of the mobile frame 5, an extrusion assembly 8 installed at the top of the mobile assembly 6, and a transmission assembly 7 installed between the mobile assembly 6 and the extrusion assembly 8; the mobile assembly 6 includes a reciprocating screw rod 61 rotatably connected to the crushing box 1 at one side of the mobile frame 5, a first rotating tooth 62 fixedly connected to one end of the first rotating column 34, a second rotating tooth 63 meshingly connected to one side of the first rotating tooth 62, and the middle part of the second rotating tooth 63 is fixedly connected to one end of the reciprocating screw rod 61, a reciprocating plate 64 meshingly connected to one side of the reciprocating screw rod 61, the top of the reciprocating plate 64 passes through the top of the mobile frame 5 and is fixedly connected with a mobile plate 65, and a rotating rod 66 rotatably connected to the top of one side of the mobile plate 65.

[0042] Specifically, when the extrusion unit is working, when the garbage is naturally drawn into the crushing component 4 for crushing, a vertical extrusion force is applied to the garbage, so that the garbage can quickly enter the crushing teeth 41 for crushing. When the moving component 6 is working, the first rotating column 34 rotates to drive the first rotating tooth 62 to rotate, and the first rotating tooth 62 rotates to drive the second rotating tooth 63 to rotate, thereby driving the reciprocating screw 61 to rotate. Since the reciprocating plate 64 is limited by the moving frame 5, the reciprocating screw 61 rotates to make the reciprocating plate 64 move on the reciprocating screw 61. When it reaches the other end of the reciprocating screw 61, it automatically returns again, so that the moving plate 65 drives the extrusion component 8 to reciprocate, thereby realizing reciprocating extrusion of the garbage falling from the feeding port 2.

[0043] Reference Figure 1-Figure 7 The transmission assembly 7 includes a driving conical tooth 71 fixedly connected to the other end of the reciprocating screw rod 61, a driven conical tooth 72 meshingly connected to one side of the driving conical tooth 71, a connecting rod 73 fixedly connected to the top of the driven conical tooth 72 and passing through one side of the moving frame 5, a first transmission tooth 74 fixedly connected to the top of the connecting rod 73, a fixed rod 75 fixedly connected to the top of the other end of the moving frame 5, a second transmission tooth 76 rotatably connected to the top of the fixed rod 75, a third transmission tooth 77 fixedly connected to the top of the rotating rod 66, and the first transmission tooth 74, the second transmission tooth 76 and the third transmission tooth 77 are transmission-connected to a transmission chain 78.

[0044] Specifically, the transmission assembly 7 is used to drive the extrusion assembly 8 to rotate, thereby rotating and extruding the garbage. During operation, the reciprocating screw 61 rotates to drive the driving conical tooth 71 to rotate, thereby driving the driven conical tooth 72 to rotate, and the driven conical tooth 72 drives the connecting rod 73 to rotate. The connecting rod 73 is limited in the movable frame 5 so that the connecting rod 73 can rotate in the horizontal direction. The rotation of the connecting rod 73 drives the first transmission tooth 74 to rotate, and the first transmission tooth 74 drives the transmission chain 78 to rotate, so that the second transmission tooth 76 and the third transmission tooth 77 follow the rotation, and the rotation of the third transmission tooth 77 drives the rotating rod 66 to rotate, and the rotation of the rotating rod 66 drives the extrusion assembly 8 at the bottom to rotate, thereby realizing rotation and extrusion of the garbage.

[0045] Reference Figure 1-Figure 8 The extrusion assembly 8 includes a sliding member 81 fixedly connected to the rotating rod 66, an extrusion member 82 fixedly connected to one side of the sliding member 81, a sliding guide strip 83 fixedly connected to the surface of the sliding member 81 in a linear array, and a rotating extrusion strip 84 fixedly connected to the surface of the extrusion member 82.

[0046] Specifically, when the extrusion assembly 8 rotates, the garbage falling from the feeding port 2 falls on the sliding member 81. The setting of the sliding member 81 can guide the falling connection so that the garbage falls into the middle of the crushing teeth 41 on both sides. The setting of the sliding guide bar 83 is used to disperse the fallen garbage horizontally to prevent the garbage from falling directly onto the crushing assembly 4 when falling from a certain point of the feeding port 2, causing garbage blockage and accumulation, which can improve the dispersion and crushing efficiency of the garbage. The setting of the rotating extrusion bar 84 allows the extrusion member 82 to rotate, and one side of the rotating extrusion bar 84 can squeeze the garbage during the rotation process. The rotating extrusion bar 84 is inclined. During the rotation process, the extrusion members 82 and the rotating extrusion bar 84 on both sides rotate and squeeze the garbage synchronously, so that the garbage can be squeezed toward the middle of the crushing assembly 4, which improves the crushing extrusion force and crushing efficiency.

[0047] Reference Figure 1-Figure 8 The opposite sides of the sliding member 81 and the extruding member 82 are both inclined, and the inclination angle formed by the side wall of the sliding member 81 and the horizontal plane is greater than the inclination angle formed by the side wall of the extruding member 82 and the horizontal plane.

[0048] Specifically, the inclined setting of the sliding member 81 facilitates the sliding of the garbage, and the inclination of the extrusion member 82 is set in the opposite direction, so that the extrusion member 82 can rotate and squeeze the garbage from the top of the garbage from top to bottom during the rotation process, avoiding the garbage from being hard squeezed and causing splashing after the garbage is crushed, thereby improving the safety of the garbage during extrusion and crushing. The setting of the sliding member 81 with a larger inclination angle can facilitate the fallen garbage to fall quickly onto the crushing component 4 for crushing, and allow the garbage to fall better onto the crushing teeth 41. The setting of the extrusion member 82 with a smaller inclination angle can improve the adaptability to the extrusion of garbage of different sizes.

[0049] Reference Figure 8 The radius of the sliding member 81 is smaller than the radius of the extruding member 82 , and the thickness of the sliding guide strip 83 is smaller than the thickness of the rotating extruding strip 84 .

[0050] Specifically, the smaller radius of the sliding member 81 makes the bottom of the sliding member 81 farther from the middle of the two crushing assemblies 4, which is convenient for the garbage to fall directly onto the crushing teeth 41 after falling. The larger radius of the extrusion member 82 makes it easier for the extrusion members 82 on both sides to squeeze the garbage more fully.

[0051] Reference Figure 8 The two sides of the top of the extrusion member 82 are symmetrically fixedly connected with extrusion angles 85, and the bottom of the sliding member 81 is symmetrically fixedly connected with a toggle angle 86.

[0052] Specifically, during the rotation of the extrusion member 82 and the sliding member 81, the extrusion angle 85 moves the larger garbage during the extrusion process, so that the garbage can move and roll along the crushing teeth 41, so that some garbage can be crushed by other crushing teeth 41, thereby improving the crushing efficiency of the crushing teeth 41. The setting of the toggle angle 86 can move the smaller garbage or the garbage that becomes smaller after being crushed, so that it can be crushed by other crushing teeth 41, thereby further improving the crushing efficiency. The rest of the structure is the same as that of Example 1.

[0053] In summary, the working principle of the present invention is as follows: during crushing, the driving motor 31 is started, so that the driving motor 31 drives the first linkage tooth 32 to rotate, and the driving chain drives the second linkage tooth 33 to rotate, thereby driving the first rotating column 34 to rotate. Under the meshing connection between the driving tooth 35 and the driven tooth 36, the second rotating column 37 and the first rotating column 34 rotate synchronously in opposite directions to crush the garbage falling into the feeding port 2. When the first rotating column 34 rotates, the first rotating tooth 62 drives the second rotating tooth 63 to rotate, and the second rotating tooth 63 drives the reciprocating screw 61 to rotate. The rotation of the reciprocating screw 61 causes the reciprocating plate 64 to reciprocate laterally. When the reciprocating screw 61 rotates, it drives the driving conical tooth 71 to rotate, thereby The driven conical tooth 72 drives the connecting rod 73 to rotate, and the rotation of the connecting rod 73 drives the first transmission tooth 74 to rotate. The second transmission tooth 76 and the third transmission tooth 77 are driven to rotate by the transmission chain 78, so that the third transmission tooth 77 drives the rotating rod 66 to rotate, and the rotating rod 66 drives the sliding piece 81 and the extrusion piece 82 to rotate on the top of the movable plate 65. During the rotation process, the sliding piece 81 and the guide sliding bar guide and disperse the fallen garbage, and the extrusion piece 82 and the rotating extrusion bar 84 rotate and extrude the dispersed garbage, so that the garbage is vertically squeezed to enter the crushing teeth 41 on both sides more quickly, avoiding the garbage rolling or tumbling on the crushing teeth 41, causing blockage, and improving the crushing efficiency of the device.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A garbage crushing and processing device for environmental protection engineering, comprising a crushing box and a feeding port on the top of the crushing box, characterized in that: It also includes a crushing unit inside the crushing box and extrusion units symmetrically arranged on both sides of the crushing unit; The crushing unit includes a driving assembly inside the crushing box and a crushing assembly on one side of the driving assembly; The driving assembly includes a driving motor arranged on one side of the crushing box, a first linkage tooth arranged on one side of the output shaft of the driving motor, a driving chain arranged on one side of the first linkage tooth, a second linkage tooth arranged on one side of the driving chain, a first rotating column arranged in the middle of the second linkage tooth, a driving tooth arranged on the first rotating column, a driven tooth arranged on one side of the driving tooth, and a second rotating column arranged on one side of the driven tooth; The extrusion unit includes a moving frame arranged inside the crushing box, a moving assembly arranged at the bottom of the moving frame, an extrusion assembly arranged at the top of the moving assembly, and a transmission assembly arranged between the moving assembly and the extrusion assembly; The moving assembly includes a reciprocating screw rod arranged in the crushing box and located on one side of the moving frame, a first rotating tooth arranged at one end of the first rotating column, a second rotating tooth arranged on one side of the first rotating tooth, and the middle part of the second rotating tooth is fixedly connected to one end of the reciprocating screw rod, a reciprocating plate arranged on one side of the reciprocating screw rod, the top of the reciprocating plate passes through the top of the moving frame and is fixedly connected with the moving plate, and a rotating rod arranged on the top of one side of the moving plate; The transmission assembly includes a driving conical tooth arranged at the other end of the reciprocating screw rod, a driven conical tooth arranged on one side of the driving conical tooth, a connecting rod arranged at the top of the driven conical tooth and passing through one side of the moving frame, a first transmission tooth arranged at the top of the connecting rod, a fixed rod arranged at the top of the other end of the moving frame, a second transmission tooth arranged at the top of the fixed rod, and a third transmission tooth arranged at the top of the rotating rod. The first transmission tooth, the second transmission tooth and the third transmission tooth are connected by a transmission chain.

2. The garbage crushing and processing device for environmental protection engineering according to claim 1 is characterized in that: The crushing assembly comprises crushing teeth which are respectively arranged in a linear array on the first rotating column and the second rotating column, and the overall shape of the crushing teeth is triangular, and an extrusion block is arranged at each corner of the crushing teeth.

3. The garbage crushing and processing device for environmental protection engineering according to claim 1 is characterized in that: The extrusion assembly comprises a sliding member arranged on the rotating rod, an extrusion member arranged on one side of the sliding member, sliding guide strips arranged in a linear array on the surface of the sliding member, and a rotating extrusion strip arranged on the surface of the extrusion member.

4. The garbage crushing and processing device for environmental protection engineering according to claim 3 is characterized in that: The opposite sides of the sliding member and the extrusion member are both inclined, and the inclination angle formed by the side wall of the sliding member and the horizontal plane is greater than the inclination angle formed by the side wall of the extrusion member and the horizontal plane.

5. The garbage crushing and processing device for environmental protection engineering according to claim 3 is characterized in that: The radius of the sliding member is smaller than the radius of the extruding member, and the thickness of the sliding guide strip is smaller than the thickness of the rotating extruding strip.

6. The garbage crushing and processing device for environmental protection engineering according to claim 3 is characterized in that: Extrusion angles are symmetrically arranged on both sides of the top of the extrusion piece, and toggle angles are symmetrically arranged on the bottom of the sliding piece.

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