Large-sized garbage crushing device and method

Abstract

The application discloses a large-size garbage crushing device and method, and relates to the field of garbage treatment.The device comprises a crushing box, a crushing roller, a feeding frame provided with a conveying belt, a feeding port, and an auxiliary crushing mechanism.The auxiliary crushing mechanism comprises a connecting plate and a pressing plate which are sequentially and slidingly connected to the inner wall of the crushing box from top to bottom.A pressing spring is fixedly connected between the connecting plate and the pressing plate.Two screws are rotatably connected to the two sides of the inner wall of the crushing box, and the connecting plate is threadedly connected with the screw.The device can exert downward pressure on the large-size garbage during the crushing process, increase the contact pressure between the bottom large-size garbage and the crushing roller, and better bite the large-size garbage by the crushing teeth on the crushing roller, so that the crushing roller can crush large-size garbage with different shapes.

Description

Technical Field

[0001] The present invention relates to garbage disposal technology, and in particular to a large-scale garbage crushing device and method. Background Art

[0002] A bulky waste crusher is a device used to process and reduce the volume of large waste items. It typically consists of powerful mechanical components and crushing rollers, capable of crushing or shredding large waste items such as furniture, electrical appliances, and wood.

[0003] Existing large-scale waste crushing devices often encounter problems with the crushing rollers when crushing large-scale waste in the form of rollers or spheres, due to the diverse types, shapes, and materials of these large-scale waste. Chinese invention patent publication number CN114177983B discloses a compound waste crusher. This compound waste crusher employs a squeezing roller positioned above the crushing rollers to squeeze the large-scale waste to change its shape, facilitating engagement and crushing by the crushing rollers. However, in actual use, some large-scale waste in the form of rollers or spheres still encounters the same problems encountered by the crushing rollers when they reach the squeezing rollers, resulting in unstable crushing efficiency and hindering the crushing process. Summary of the Invention

[0004] The purpose of the present invention is to provide a large-sized garbage crushing device and method to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above-mentioned object, the present invention provides the following technical solution: a large-sized garbage crushing device, comprising a crushing box, a crushing roller, a feeding rack provided with a conveyor belt, and a feeding port, and further comprising:

[0006] Auxiliary crushing mechanism, the auxiliary crushing mechanism includes a connecting plate and a pressure plate that are slidably connected to the inner wall of the crushing box from top to bottom in sequence, a pressure spring is fixedly connected between the connecting plate and the pressure plate, both sides of the inner wall of the crushing box are rotatably connected with screws, the connecting plate is threadedly connected to the screw, and a notch corresponding to the screw is opened at the end of the pressure plate, the bottom of the pressure plate is fixedly connected to a protective shell, and the bottom of the protective shell is fixedly connected to a pyramid block.

[0007] Furthermore, the surface of the pressure plate is fixedly connected to a plurality of guide rods distributed in an array, the surface of the connecting plate is provided with through grooves corresponding to the guide rods, the guide rods pass through the through grooves and are slidably connected to the inner side surfaces of the through grooves, and the pressure spring is sleeved on the outside of the guide rods.

[0008] Furthermore, a synchronization component is provided between the two screw rods, and the synchronization component includes pulleys fixedly connected to the outside of the two screw rods respectively, and a transmission belt is connected between the two pulleys.

[0009] Furthermore, it also includes:

[0010] An adjustment mechanism, the adjustment mechanism comprising a rotating shaft rotatably connected to the surface of the pressure plate, the end of the rotating shaft being fixedly connected to a wheel located at the bottom of the pressure plate, the bottom surface of the wheel being fixedly connected to a plurality of baffles, and a drive assembly being provided between the rotating shaft and one of the screws;

[0011] The driving assembly is used to transmit the driving force of the screw to the rotating shaft and drive the rotating shaft to rotate.

[0012] Furthermore, the driving assembly includes a plurality of vertical grooves equidistantly arranged in a circular ring shape on the surface of the screw, the inner side surfaces of the vertical grooves are slidably connected with protrusions, the outsides of the plurality of protrusions are fixedly connected with the same first gear, the first gear is slidably connected to the outside of the screw through the protrusions and the vertical grooves, the outside of the rotating shaft is fixedly connected with a second gear, the first gear and the second gear are meshed with the same toothed belt, the surface of the pressure plate is fixedly connected with a mounting plate, and the first gear is rotatably connected to the mounting plate.

[0013] Furthermore, it also includes:

[0014] The material collecting mechanism includes a baffle slidably connected to the surface of the crushing box, two guide grooves are symmetrically opened on the surface of the crushing box, a slider is slidably connected to the inner wall of the guide groove, a buffer spring is fixedly connected between the bottom of the slider and the bottom surface of the guide groove, and the top of the feeding rack is fixedly connected to the leakage prevention plates located on both sides of the feed port.

[0015] Furthermore, the two sliders are fixedly connected to the connecting plate, and the connecting plate is slidably connected to the baffle through the sliders and the guide groove.

[0016] Furthermore, limiting grooves are symmetrically provided on both sides of the inner wall of the guide groove, and limiting blocks are slidably connected to the inner side surfaces of the limiting grooves. The two limiting blocks are fixedly connected to the two sides of the slider respectively.

[0017] Furthermore, the baffle is arranged above the feed port, and the shape and size of the baffle are adapted to the feed port.

[0018] A method for crushing large-sized waste, applied to a large-sized waste crushing device as described above, comprises the following steps:

[0019] S1. The large pieces of garbage placed on its surface are transported by the conveyor belt so that they can enter the interior of the crushing box from the feed port.

[0020] S2, crushing the large piece of garbage falling above it by the rotation of the crushing roller;

[0021] S3, moving downward by the screw rod driving the connecting plate and the pressing plate, the downward movement of the pressing plate extruding the large piece of garbage above the crushing roller;

[0022] S4, rotating the wheel disc by the screw rod driving, so that the blocking strip rotates and drives the large piece of garbage below it to twist at a certain angle;

[0023] S5, moving downward by the connecting plate moving to drive the blocking plate to block the feeding port, so that the large piece of garbage gathers at the feeding port and is sent into the crushing box at one time when the feeding port is opened;

[0024] S6, the large piece of garbage after crushing is transported out from the bottom of the crushing box.

[0025] Compared with the prior art, the large piece of garbage crushing device and method provided by the application has the following beneficial effects:

[0026] 1. The large piece of garbage crushing device and method, by using the auxiliary crushing mechanism, can apply downward pressure to the large piece of garbage during the crushing process, increase the contact pressure between the bottom large piece of garbage and the crushing roller, so that the crushing teeth on the crushing roller can better engage the large piece of garbage, and the crushing roller can crush large pieces of garbage of different shapes.

[0027] 2. The large piece of garbage crushing device and method, by using the adjusting mechanism, can continuously adjust the contact state between the bottom large piece of garbage and the crushing roller during the crushing process, so that the large piece of garbage has a state that is more conducive to the engagement of the crushing teeth on the crushing roller during the continuous adjustment of the contact state, thereby further improving the efficiency of the large piece of garbage crushing.

[0028] 3. The large piece of garbage crushing device and method, by using the material collecting mechanism, can limit the feeding of the large piece of garbage on the conveying belt when the pressing plate applies pressure to the large piece of garbage during the crushing process, thereby effectively avoiding the interference between the large piece of garbage to be fed and the pressing plate, so that the large piece of garbage will not be fed when the pressing plate is working, thereby ensuring the staggered movement of the two. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments described in the application, and other drawings can also be obtained by those skilled in the art based on these drawings.

[0030] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0031] Figure 2 A schematic diagram of a partial cross-sectional structure of a crushing box provided in an embodiment of the present invention;

[0032] Figure 3 The embodiment of the present invention provides Figure 2 A in the middle is an enlarged structural diagram;

[0033] Figure 4 A schematic diagram of the structure of the connecting plate and the pressing plate provided in an embodiment of the present invention;

[0034] Figure 5 A bottom view of a pressure plate provided in an embodiment of the present invention;

[0035] Figure 6 The embodiment of the present invention provides Figure 5 The enlarged structural diagram at B in the middle;

[0036] Figure 7 A top view of a pressure plate provided in an embodiment of the present invention;

[0037] Figure 8 A schematic diagram of a partial cross-sectional structure of a baffle provided in an embodiment of the present invention;

[0038] Figure 9 The embodiment of the present invention provides Figure 8 Enlarged structural diagram at point C in the middle.

[0039] Description of reference numerals:

[0040] 1. Crushing box; 2. Crushing roller; 3. Feed rack; 4. Feed port; 5. Auxiliary crushing mechanism; 51. Connecting plate; 52. Pressure plate; 53. Pressure spring; 54. Screw; 55. Protective shell; 56. Pyramid block; 57. Guide rod; 58. Through slot; 59. Synchronous component; 591. Pulley; 592. Transmission belt; 6. Adjustment mechanism; 61. Rotating shaft; 62. Wheel; 63. Baffle; 64. Drive component; 641. Vertical slot; 642. Bump; 643. First gear; 644. Second gear; 645. Toothed belt; 646. Mounting plate; 7. Collecting mechanism; 71. Baffle; 72. Guide slot; 73. Slider; 74. Buffer spring; 75. Limiting slot; 76. Limiting block; 77. Leakage-proof plate; 8. Conveyor belt. DETAILED DESCRIPTION

[0041] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0042] Example 1:

[0043] See also Figures 1-4 A large garbage crushing device includes a crushing box 1, a crushing roller 2, a feeding rack 3 provided with a conveyor belt 8, and a feeding port 4, and further includes:

[0044] The auxiliary crushing mechanism 5 includes a connecting plate 51 and a pressure plate 52 which are slidably connected to the inner wall of the crushing box 1 from top to bottom in sequence. A pressure spring 53 is fixedly connected between the connecting plate 51 and the pressure plate 52. Screws 54 are rotatably connected to both sides of the inner wall of the crushing box 1. The connecting plate 51 is threadedly connected to the screw 54. A notch corresponding to the screw 54 is opened at the end of the pressure plate 52. A protective shell 55 is fixedly connected to the bottom of the protective shell 55, and a pyramid block 56 is fixedly connected to the bottom of the protective shell 55.

[0045] In this embodiment, a plurality of guide rods 57 distributed in an array are fixedly connected to the surface of the pressure plate 52, and a through groove 58 corresponding to the guide rod 57 is opened on the surface of the connecting plate 51. The guide rod 57 passes through the through groove 58 and is slidably connected to the inner side surface of the through groove 58. The pressure spring 53 is sleeved on the outside of the guide rod 57.

[0046] Specifically, the guide rod 57 will not hinder the normal compression of the pressure spring 53, and the guide rod 57 can guide the compression of the pressure spring 53, so that the pressure spring 53 will not bend during the compression process, so that the pressure spring 53 can work normally.

[0047] In this embodiment, a synchronization component 59 is provided between the two screw rods 54. The synchronization component 59 includes pulleys 591 fixedly connected to the outside of the two screw rods 54 respectively. A transmission belt 592 is connected between the two pulleys 591. The two screw rods 54 can rotate synchronously through the transmission of the pulleys 591 and the transmission belt 592, thereby driving the connecting plate 51 to move smoothly in the vertical direction.

[0048] The rubbish that has fallen into the crushing box 1 is crushed by the rotation of the crushing roller 2. In this process, the connecting plate 51 is driven downward by the rotation of the screw 54. The connecting plate 51 moves downward, driving the pressure spring 53 and the pressure plate 52 to move downward. When the pressure plate 52 moves downward, it will contact the large pieces of garbage inside the crushing box 1. When the pressure plate 52 abuts against the large pieces of garbage and cannot move downward quickly, the connecting plate 51 continues to move downward, causing relative movement between the pressure plate 52 and the pressure spring 53, and compressing the pressure spring 53, so that the pressure spring 53 can continue to apply downward pressure to the pressure plate 52, so that the pressure plate 52 can squeeze the large pieces of garbage, thereby increasing the contact pressure between the large pieces of garbage at the bottom and the crushing roller 2, so that the crushing roller 2 can better crush the large pieces of garbage.

[0049] When the large piece of garbage whose bottom contacts the crushing roller 2 is flat or spherical, the application of the pressure plate 52 causes the large piece of garbage to directly contact the crushing roller 2, so that the crushing teeth on the crushing roller 2 can better embed into the interior of the large piece of garbage and crush it.

[0050] Example 2:

[0051] See also Figure 4-Figure 7 This embodiment provides a technical solution based on the above embodiment, which also includes:

[0052] The adjustment mechanism 6 includes a rotating shaft 61 rotatably connected to the surface of the pressure plate 52. The end of the rotating shaft 61 is fixedly connected to a wheel 62 located at the bottom of the pressure plate 52. The bottom surface of the wheel 62 is fixedly connected to a plurality of blocking bars 63. A driving assembly 64 is provided between the rotating shaft 61 and one of the screw rods 54;

[0053] The driving assembly 64 is used to transmit the driving force of the screw 54 to the rotating shaft 61 and drive the rotating shaft 61 to rotate.

[0054] In this embodiment, the driving assembly 64 includes a plurality of vertical grooves 641 equidistantly arranged in a circular ring shape on the surface of the screw 54, the inner side surfaces of the vertical grooves 641 are slidingly connected with protrusions 642, the outsides of the plurality of protrusions 642 are fixedly connected with the same first gear 643, the first gear 643 is slidingly connected to the outside of the screw 54 through the protrusions 642 and the vertical grooves 641, the outside of the rotating shaft 61 is fixedly connected with a second gear 644, the first gear 643 and the second gear 644 are meshed with the same toothed belt 645, the surface of the pressure plate 52 is fixedly connected with a mounting plate 646, and the first gear 643 is rotatably connected to the mounting plate 646.

[0055] Specifically, when the pressure plate 52 moves in the vertical direction, the second gear 644 and the first gear 643 move synchronously therewith, and when the first gear 643 moves, it drives the protrusion 642 to slide along the inner wall of the vertical groove 641, so that under the cooperation of the protrusion 642 and the vertical groove 641, the normal transmission of the first gear 643 will not be affected.

[0056] During operation, when the pressure plate 52 moves downward, it will drive the wheel disc 62 to move downward synchronously, so that the bottom of the wheel disc 62 can also abut against the large pieces of garbage below. During crushing, the screw 54 rotates to drive the first gear 643 to rotate, and the first gear 643 rotates to drive the toothed belt 645 to rotate. The toothed belt 645 rotates to drive the second gear 644 to rotate. The second gear 644 rotates to drive the rotating shaft 61 to rotate. The rotation of the rotating shaft 61 drives the wheel disc 62 to rotate. The rotation of the wheel disc 62 drives the baffle 63 to rotate. The rotation of the baffle 63 drives the large pieces of garbage abutting it to rotate at a certain angle. Since the types of large pieces of garbage entering the crushing box 1 are various, some structures between adjacent large pieces of garbage are prone to intertwining and entanglement. Therefore, when the baffle 63 drives the large pieces of garbage on the upper layer to rotate, the large pieces of garbage at the bottom can also rotate at a certain angle under the transmission of the large pieces of garbage on the upper layer, so that the contact state between the large pieces of garbage at the bottom and the crushing roller 2 can be continuously changed, thereby facilitating the crushing teeth on the crushing roller 2 to bite and crush the large pieces of garbage at the bottom.

[0057] Example 3:

[0058] See also Figure 1-Figure 3 、 Figure 8-Figure 9 During the crushing process of large-sized garbage, when the pressing plate 52 moves downward to apply pressure to the large-sized garbage during the crushing process, the position of the pressing plate 52 is lower than the feed port 4. The large-sized garbage on the conveyor belt 8 will fall onto the pressing plate 52 during the continued conveying process and cannot smoothly fall onto the crushing roller 2 for crushing. Therefore, this embodiment provides a technical solution based on the above embodiment, which also includes:

[0059] The collecting mechanism 7 includes a baffle 71 slidably connected to the surface of the crushing box 1. Two guide grooves 72 are symmetrically provided on the surface of the crushing box 1. The inner wall of the guide groove 72 is slidably connected with a slider 73. A buffer spring 74 is fixedly connected between the bottom of the slider 73 and the bottom surface of the guide groove 72. The top of the feeding rack 3 is fixedly connected with leak-proof plates 77 located on both sides of the feed port 4.

[0060] In this embodiment, the two sliders 73 are both fixedly connected to the connecting plate 51 , and the connecting plate 51 is slidably connected to the baffle 71 via the sliders 73 and the guide groove 72 .

[0061] In this embodiment, limiting grooves 75 are symmetrically formed on both sides of the inner wall of the guide groove 72 . Limiting blocks 76 are slidably connected to the inner side surfaces of the limiting grooves 75 . The two limiting blocks 76 are fixedly connected to both sides of the slider 73 .

[0062] Specifically, the limiting block 76 is slidably connected to the inside of the limiting groove 75, so that it can limit the movement state of the slider 73, so that the slider 73 can only slide vertically along the inner wall of the guide groove 72, but cannot exit from the inside of the guide groove 72, so that the baffle 71 has better stability during operation.

[0063] In this embodiment, the baffle 71 is disposed above the feed inlet 4 , and the shape and size of the baffle 71 are adapted to the feed inlet 4 .

[0064] During the crushing process, the connecting plate 51 moves downward, driving the slider 73 to move downward, and the slider 73 moves downward, driving the buffer spring 74 and the baffle 71 to move downward. During the downward movement of the baffle 71, the feed port 4 is blocked, so that the large pieces of garbage transported by the conveyor belt 8 can be gathered at the end of the feed port 4 and cannot enter the crushing box 1. In addition, with the use of the leak-proof plate 77, the large pieces of garbage are not likely to fall during the accumulation process.

[0065] When the baffle 71 moves downward to block the movement of large pieces of garbage on the conveyor belt 8, if there is large garbage at the feed inlet 4, the baffle 71 will abut against the large garbage below during its downward movement, thereby preventing the baffle 71 from continuing to move downward. At this time, the continued downward movement of the connecting plate 51 will drive the slider 73 to slide downward along the inner wall of the guide groove 72 and compress the buffer spring 74, so that the normal operation of the connecting plate 51 will not be hindered.

[0066] When the screw 54 drives the connecting plate 51 to move upward and reset, the connecting plate 51 moves and drives the baffle 71 to move upward, so that the feed port 4 is opened. At this time, under the transportation of the conveyor belt 8, large garbage can be quickly sent into the crushing box 1, and will not be blocked by the pressure plate 52, so that the large garbage can directly fall on the crushing roller 2 for crushing.

[0067] Example 4:

[0068] This embodiment provides a large-sized waste crushing method based on the above embodiment, which is applied to a large-sized waste crushing device as described above, including the following steps:

[0069] S1. The large garbage placed on the surface is transported by the conveyor belt 8 so that it can enter the interior of the crushing box 1 through the feed port 4.

[0070] S2, the crushing roller 2 rotates to crush the large garbage falling on it;

[0071] S3, the connecting plate 51 and the pressing plate 52 are driven downward by the screw 54, and the pressing plate 52 moves downward to squeeze the large garbage above the crushing roller 2;

[0072] S4, the screw 54 drives the wheel 62 to rotate, so that the baffle 63 rotates and drives the large garbage below to twist a certain angle;

[0073] S5, the connecting plate 51 moves to drive the baffle 71 to move downwards to block the feeding port 4, so that the large garbage gathers at the feeding port 4 and is sent into the crushing box 1 at one time when the feeding port 4 is opened;

[0074] S6, the large garbage crushed is conveyed out from the bottom of the crushing box 1.

[0075] The above only describes certain exemplary embodiments of the present application by way of illustration, and it is needless to say that the described embodiments can be modified in various ways without departing from the spirit and scope of the present application for those skilled in the art. Therefore, the above drawings and descriptions are illustrative in nature and should not be understood as limiting the scope of protection of the claims of the present application.

Claims

1. A large garbage crushing device, comprising a crushing box (1), a crushing roller (2), a feeding rack (3) provided with a conveyor belt (8), and a feeding port (4), characterized in that: Also includes: An auxiliary crushing mechanism (5), the auxiliary crushing mechanism (5) comprising a connecting plate (51) and a pressure plate (52) which are slidably connected to the inner wall of the crushing box (1) in sequence from top to bottom, a pressure spring (53) being fixedly connected between the connecting plate (51) and the pressure plate (52), screws (54) being rotatably connected to both sides of the inner wall of the crushing box (1), the connecting plate (51) being threadedly connected to the screw (54), a notch corresponding to the screw (54) being formed at the end of the pressure plate (52), a protective shell (55) being fixedly connected to the bottom of the protective shell (55), and a pyramid block (56) being fixedly connected to the bottom of the protective shell (55); The device further comprises an adjustment mechanism (6), wherein the adjustment mechanism (6) comprises a rotating shaft (61) rotatably connected to the surface of the pressure plate (52), an end of the rotating shaft (61) being fixedly connected to a wheel disc (62) located at the bottom of the pressure plate (52), a bottom surface of the wheel disc (62) being fixedly connected to a plurality of blocking bars (63), and a driving assembly (64) being provided between the rotating shaft (61) and one of the screw rods (54); The driving assembly (64) is used to transmit the driving force of the screw (54) to the rotating shaft (61) and drive the rotating shaft (61) to rotate; The driving assembly (64) includes a plurality of vertical grooves (641) equidistantly arranged in an annular shape on the surface of the screw (54), the inner side surface of the vertical groove (641) is slidably connected to a protrusion (642), the exterior of the plurality of protrusions (642) is fixedly connected to the same first gear (643), the first gear (643) is slidably connected to the exterior of the screw (54) via the protrusion (642) and the vertical groove (641), the exterior of the rotating shaft (61) is fixedly connected to a second gear (644), the first gear (643) and the second gear (644) are meshed with the same toothed belt (645), the surface of the pressure plate (52) is fixedly connected to a mounting plate (646), and the first gear (643) is rotatably connected to the mounting plate (646); Also includes: A material collecting mechanism (7), the material collecting mechanism (7) includes a baffle (71) slidably connected to the surface of the crushing box (1), the surface of the crushing box (1) is symmetrically provided with two guide grooves (72), the inner wall of the guide groove (72) is slidably connected to a slider (73), a buffer spring (74) is fixedly connected between the bottom of the slider (73) and the bottom surface of the guide groove (72), and the top of the feeding rack (3) is fixedly connected to leak-proof plates (77) located on both sides of the feed port (4).

2. The large garbage crushing device according to claim 1, characterized in that: The surface of the pressure plate (52) is fixedly connected to a plurality of guide rods (57) distributed in an array. The surface of the connecting plate (51) is provided with through grooves (58) corresponding to the guide rods (57). The guide rods (57) pass through the through grooves (58) and are slidably connected to the inner side surfaces of the through grooves (58). The pressure spring (53) is sleeved on the outside of the guide rods (57).

3. The large garbage crushing device according to claim 2, characterized in that: A synchronization component (59) is provided between the two screw rods (54), and the synchronization component (59) includes pulleys (591) respectively fixedly connected to the outside of the two screw rods (54), and a transmission belt (592) is connected between the two pulleys (591).

4. The large garbage crushing device according to claim 1, characterized in that: The two sliders (73) are both fixedly connected to the connecting plate (51), and the connecting plate (51) is slidably connected to the baffle (71) via the sliders (73) and the guide groove (72).

5. The large garbage crushing device according to claim 4, characterized in that: Restriction grooves (75) are symmetrically formed on both sides of the inner wall of the guide groove (72), and the inner side surfaces of the restriction grooves (75) are slidably connected to restriction blocks (76), and the two restriction blocks (76) are respectively fixedly connected to both sides of the slider (73).

6. The large garbage crushing device according to claim 5, characterized in that: The baffle (71) is arranged above the feed port (4), and the shape and size of the baffle (71) are compatible with the feed port (4).

7. A method for crushing large garbage, characterized in that: A large-sized garbage crushing device according to any one of claims 1 to 5, comprising the following steps: S1, through the conveyor belt (8) placed on the surface of the large garbage is transported so that it can enter the interior of the crushing box (1) from the feed port (4); S2, the crushing roller (2) rotates to crush the large pieces of garbage falling on it; S3, driving the connecting plate (51) and the pressing plate (52) downward by the screw (54), and the pressing plate (52) moves downward to squeeze the large garbage above the crushing roller (2); S4, driving the wheel disc (62) to rotate via the screw (54), causing the blocking bar (63) to rotate and drive the large garbage below it to twist at a certain angle; S5, the connecting plate (51) is used to move the driving baffle (71) downward to block the feed port (4), so that the large pieces of garbage are gathered at the feed port (4) and are fed into the crushing box (1) at once when the feed port (4) is opened; S6. The crushed large garbage is transported out from the bottom of the crushing box (1).

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