Concrete crusher and use method thereof

Abstract

The invention discloses a concrete crusher and a using method thereof. The concrete crusher comprises a crushing box, a feeding bin arranged at the top of the crushing box and supporting columns arranged at the bottom of the crushing box. A spraying device, an upper guide plate, a crushing gear set, a lower filter screen, a collecting tank, a pushing device and a lifting driving device are arranged in the crushing box, and a conveying device is arranged at the bottom of the crushing box; the concrete crusher can re-crush crushed concrete waste which is not filtered by the filter screen at the lower part, so that the concrete waste can be relatively thoroughly crushed, and the spraying device is arranged in the crushing box, so that a very good dust falling effect can be achieved, and the noise is relatively low.

Description

Technical Field

[0001] The present invention relates to the technical field of construction machinery and equipment, in particular to a concrete crusher and a use method thereof. Background Art

[0002] During the construction process, crushers are often used to crush unqualified and redundant concrete waste for recycling. However, existing concrete crushers have problems such as incomplete crushing, often leaving large concrete blocks that are not completely crushed, and high noise during the crushing process using a suction box to remove dust. Summary of the invention

[0003] The purpose of the present invention is to provide a modular prefabricated building construction structure to solve the problems in the prior art that the existing concrete crushers have incomplete crushing and there is a lot of noise during the crushing process using a suction box to remove dust.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A concrete crusher comprises: a crushing box, a feed bin arranged on the top of the crushing box, and a support column arranged on the bottom of the crushing box;

[0006] The crushing box is provided with a spray device, an upper guide plate, a crushing gear set, a lower filter screen, a collecting tank and a lifting drive device, and the bottom of the crushing box is provided with a conveying device;

[0007] The crushing box comprises a front side, a rear side, and a first side and a second side located between the front side and the rear side, a slide is arranged on the inner wall of the first side of the crushing box, the crushing gear set is rotatably connected between the front side and the rear side of the crushing box, and the crushing gear set is located in the middle of the crushing box, the spray device is arranged on the top of the side wall of the crushing box, the upper guide plate is obliquely fixed on the inner wall of the rear side of the crushing box, and the higher side of the upper guide plate is arranged adjacent to the first side of the crushing box, and the lower side of the upper guide plate is arranged opposite to the feed port of the crushing gear set; the collecting trough is slidably connected to the slide and can be lifted up and down along the slide under the drive of the lifting drive device, and a limiting rod is arranged on the top of the slide, a propulsion plate is arranged in the collecting trough, and a propulsion device connected with the propulsion plate is arranged on the collecting trough;

[0008] The collecting trough comprises a bottom plate, a first side plate and a second side plate; the first side plate is slidably connected to the slide, the second side plate is rotatably connected to one side of the bottom plate, and at least two buttons are arranged on the top of the first side plate, the at least two buttons are respectively connected to the second side plate and the propulsion device, the second side plate rotates outwardly to be in a horizontal state when the at least two buttons are in a pressed state at the same time, and rotates inwardly to be in a vertical state when the at least two buttons are in a released state at the same time; the propulsion device pushes the propulsion plate to move in the direction of the upper guide plate when the at least two buttons are in a pressed state at the same time, and drives the propulsion plate to move in the direction of the first side plate when the at least two buttons are in a released state at the same time; and when the collecting trough reaches the top of the slide, the at least two buttons are in a pressed state at the same time under the pressing of the limit rod;

[0009] The lower filter is obliquely arranged at the lower part of the crushing box, and the higher end of the lower filter is connected to the side wall of the second side of the crushing box, and the lower end of the lower filter is arranged near the bottom of the slideway so that when the collecting trough is located at the bottom of the slideway, the concrete waste that has not passed through the lower filter rolls into the collecting trough;

[0010] A discharge port is provided at the bottom of the crushing box facing the lower filter screen so that the concrete waste filtered by the lower filter screen falls onto the conveying device, and the conveying device is inclined, and a collecting basin is provided at the lower discharge of the conveying device.

[0011] In some of the embodiments, a baffle is provided on the top of the crushing box in an openable and closable manner.

[0012] In some embodiments, three buttons are disposed on the top of the first side plate, and the three buttons are spaced apart on the top of the first side plate of the collecting tank.

[0013] In some of the embodiments, the propulsion device includes a propulsion fixed frame and a retractable propeller;

[0014] The propulsion fixing frame passes through the first side plate and is connected to the propulsion plate. The retractable propeller is arranged in the propulsion fixing frame and is connected to the at least two buttons so as to be activated when the at least two buttons are simultaneously pressed. When the retractable propeller is activated, the retractable propeller pops out and propels the propulsion plate toward the direction of the upper guide plate.

[0015] In some of the embodiments, the pulverizing gear set includes two gears rotating in phase with each other.

[0016] In some of the embodiments, a control panel connected to the lifting drive device is further provided on the crushing box, and the lifting drive device drives the collecting trough to rise and fall according to a cycle set by the control panel.

[0017] In some of the embodiments, the conveying device includes a first driving structure arranged at the bottom of the crushing box and a second driving structure arranged above the collection basin, a transmission belt is connected between the first driving structure and the second driving structure, and the transmission belt rotates under the drive of the first driving structure and the second driving structure.

[0018] The conveyor belt is arranged obliquely, and a lower end of the conveyor belt is located above the collecting basin.

[0019] In some embodiments, the first driving structure includes a first motor, a first bracket and a first driving shaft rotatably connected to the first bracket, the first bracket is fixed to the bottom of the crushing box, and the first motor and the first driving shaft are connected to drive the first driving shaft to rotate;

[0020] The second driving structure includes a second motor, a second bracket and a second driving shaft rotatably connected in the second bracket, the second bracket is fixed on the ground, and the second motor and the second driving shaft are connected to drive the second driving shaft to rotate.

[0021] In some of the embodiments, the spray device includes a connecting pipe connected to a water source and a spray plate connected to the connecting pipe.

[0022] In addition, the present invention also discloses a method for using the above concrete crusher, comprising the following steps:

[0023] Feeding concrete waste into the feed bin;

[0024] The concrete crusher is turned on, the spray device starts to spray water mist, and the concrete waste is guided by the upper guide plate and then enters the crushing gear set for crushing;

[0025] The concrete waste crushed by the crushing gear set falls on the lower filter screen, and the lower filter screen divides the concrete waste into two parts, one part passes through the lower filter screen from the discharge port through the conveying device into the collection basin, and the other part enters the collection trough; the collection trough rises along the slide to the top of the slide under the drive of the lifting drive device, the at least two buttons are simultaneously pressed under the pressure of the limit rod, the second side plate of the collection trough rotates outwardly under the action of the at least two buttons and is in a horizontal state, the propulsion device pushes the concrete waste in the collection trough onto the upper guide plate under the action of the at least two buttons, and re-enters the crushing gear set for crushing under the guidance of the upper guide plate, then the lifting drive device drives the collection trough to descend and leave the limit rod, the at least two buttons are in a loose state, the second side plate box of the collection trough rotates inwardly and is in a vertical state, the propulsion device drives the propulsion plate to move toward the direction of the first side plate, and the lifting drive device drives the collection trough to descend to the bottom of the slide to continue collecting concrete waste.

[0026] Compared with the prior art, the present invention has at least one of the following beneficial effects:

[0027] The invention discloses a concrete crusher and a use method thereof. The concrete crusher can crush concrete waste more thoroughly, and a spray device is arranged in a crushing box to achieve a good dust reduction effect with less noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention and its features, appearance and advantages will become more apparent by reading the detailed description of the non-limiting embodiments with reference to the following drawings. The same reference numerals indicate the same parts in all the drawings. The drawings are not drawn to scale, and the emphasis is on illustrating the subject matter of the present invention.

[0029] Figure 1 is an overall schematic diagram of a concrete crusher in an embodiment of the present invention;

[0030] Figure 2 It is a schematic diagram of the interior of a concrete crusher in an embodiment of the present invention;

[0031] Figure 3 A partial schematic diagram of the upper interior of a concrete crusher in an embodiment of the present invention;

[0032] Figure 4 A partial schematic diagram of the lower interior of a concrete crusher in an embodiment of the present invention;

[0033] Figure 5 is an internal schematic diagram of a pushing device in an embodiment of the present invention;

[0034] Figure 6 is an overall schematic diagram of a horizontal conveying device in an embodiment of the present invention;

[0035] Figure 7 It is an overall schematic diagram of the feed bin in the example of the present invention.

[0036] Among them, 1. feed bin; 2. crushing box; 3. conveying device; 4. collecting basin; 5. supporting column; 11. feed port; 12. baffle; 21. upper guide plate; 22. spray device; 23. crushing gear set; 24. lower filter; 25. collecting trough; 26. discharge port; 31. first driving structure; 32. conveyor belt; 33. long connecting rod; 34. short connecting rod; 35; second driving structure; 221. spray device; 222. connecting pipe; 231. gear; 232. gear sleeve core; 251. pushing device; 252. slideway; 253. button; 254. limit rod; 255. second side plate; 256. bottom plate; 257. first side plate; 2511. propulsion plate; 2512. propulsion device; 25121. retractable propeller; 25122. propulsion fixed frame. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without making creative work are within the scope of protection of the present invention.

[0038] Embodiment 1:

[0039] See also Figures 1 to 7The present invention provides a concrete crusher, specifically, the concrete crusher comprises: a crushing box 2, a feed bin 1 arranged at the top of the crushing box 2 and a support column 5 arranged at the bottom of the crushing box 2; the crushing box 2 is provided with a spray device 22, an upper guide plate 21, a crushing gear set 23, a lower filter screen 24, a collecting tank 25, a pushing device 251 and a lifting drive device (not shown in the figure), and a conveying device 3 is arranged at the bottom of the crushing box 2; the crushing box 2 comprises a front side, a rear side and a first side and a second side located between the front side and the rear side, a slideway 252 is arranged on the inner wall of the first side of the crushing box 2, the crushing gear set 23 is rotatably connected between the front side and the rear side of the crushing box 2, and the crushing gear set 23 is located in the middle of the crushing box 2 The crushing gear set 23 includes two gears 231 that rotate inward at the same time, and the rotating shafts of the gears 231 are each provided with a gear sleeve core 232 that is rotatably connected to the rotating shaft, and the gear sleeve core 232 is fixedly connected to the side wall of the crushing box 2, and a third motor with a timing control device is installed in the hole of the gear 231, and the third motor rotates along the gear sleeve core 232, thereby driving the gear 231 to rotate; the spray device 22 is arranged at the top of the side wall of the first side of the crushing box 2, the upper guide plate 21 is tilted and fixed to the upper part of the crushing box 2, and the two sides of the upper guide plate 21 are respectively connected to the front and rear inner walls of the crushing box 2, and the higher side of the upper guide plate 21 is arranged adjacent to the first side of the crushing box 2, and the lower side of the upper guide plate 21 is arranged adjacent to the first side of the crushing box 2. The side of the collecting trough 25 is arranged opposite to the feeding port of the crushing gear set 23; the collecting trough 25 is slidably connected to the slideway 252 and can be lifted up and down along the slideway 252 under the drive of the lifting drive device, and a limit rod 254 is arranged on the top of the slideway 252, and the pushing device 251 includes a pushing plate 2511 and a pushing device 2512; a pushing plate 2511 is arranged in the collecting trough 25, and a pushing device 2512 connected to the pushing plate 2511 is arranged on the collecting trough 25; the collecting trough 25 includes a bottom plate 256, a first side plate 257 and a second side plate 255; the first side plate 257 is slidably connected to the slideway 252, the second side plate 255 is rotatably connected to one side of the bottom plate 256, and the top of the first side plate 257 is spaced apart Three buttons 253, the three buttons 253 are connected to the second side plate 255 and the propulsion device 2512 respectively, the second side plate 255 rotates outward to be in a horizontal state when the three buttons 253 are simultaneously pressed, and rotates inward to be in a vertical state when the three buttons 253 are simultaneously released; the propulsion device 2512 pushes the propulsion plate 2511 to move in the direction of the upper guide plate 21 when the three buttons 253 are simultaneously pressed, and drives the propulsion plate 2511 to move in the direction of the first side plate 257 when the three buttons 253 are simultaneously released; and when the collecting tank 25 reaches the top of the slideway 252, the three buttons 253 are simultaneously pressed under the pressure of the limit rod 254;The reason why three buttons 253 are provided and the three buttons 253 are pressed or released simultaneously to trigger the rotation of the second side plate 255 and the propulsion device 2512 is to prevent concrete waste from accidentally touching the button 253 and causing an accidental trigger. The lower filter 24 is tiltedly arranged at the lower part of the crushing box 2, and the higher end of the lower filter 24 is connected to the side wall of the second side of the crushing box 2, and the lower end of the lower filter 24 is arranged near the bottom of the slide 252 so that when the collection trough 25 is located at the bottom of the slide 252, the concrete waste that has not passed through the lower filter 24 rolls into the collection trough 25; the bottom of the crushing box 2 is provided with a discharge port 26 facing the lower filter 24 so that the concrete waste filtered by the lower filter 24 falls onto the conveying device 3, and the conveying device 3 is tiltedly arranged, and a collection basin 4 is arranged at the lower discharge of the conveying device 3. ;

[0040] Specifically, a baffle 12 is provided at the connection portion between the feed bin 1 and the crushing box 2 so as to be openable and closable, and the baffle 12 is linked to the switch of the concrete crusher. When the concrete crusher is turned on, the baffle is in a closed state to prevent dust from floating out of the feed hopper and concrete fragments from popping out and injuring people, thereby increasing environmental protection and safety.

[0041] In an embodiment of the present invention, a control panel connected to the lifting drive device is also provided on the above-mentioned crushing box 2, and the lifting drive device drives the collection tank 25 to rise and fall according to the cycle set by the control panel; for example, the lifting drive device can be set through the control panel to drive the collection tank 25 to rise once every 2 minutes under the control of the lifting device in the side cavity of the crushing box 2. When the collection tank 25 leaves the bottom of the crushing box, the crushing gear 231 stops the crushing work, and the crushing work is restarted after the collection tank 25 moves to the bottom of the crushing box. In the process of 2 minutes, the collection tank 25 rises from the bottom of the slide 252 to the top of the slide 252 in 5 seconds, and stays at the top of the slide 252 for 50 seconds. It takes 5 seconds for the collection tank 25 to descend from the top of the slide 252 to the bottom of the slide 252, and stays at the bottom of the slide 252 for 1 minute. The above time can be set according to actual conditions.

[0042] In an embodiment of the present invention, the propulsion device 2512 includes a propulsion fixing frame 25122 and a retractable propeller 25121; the propulsion fixing frame 25122 passes through the first side plate 257 and is connected to the propulsion plate 2511, and the retractable propeller 25121 is arranged in the propulsion fixing frame 25122 and is connected to the three buttons 253, so as to be activated when the three buttons 253 are pressed at the same time; when the retractable propeller 25121 is activated, the retractable propeller 25121 pops out and propels the propulsion plate 2511. 11 moves toward the direction of the upper guide plate 21. When the retractable propeller 25121 is fully extended, the propulsion plate 2511 extends to the junction of the second side plate 255 and the bottom plate 256. The retractable propeller 25121 begins to retract to the initial state, driving the propulsion device 251 to retract as a whole. At the same time, the second side plate 255 is reset to the vertical state. The propulsion device 2512 begins to propel to the initial state retracted, and the second side plate 255 begins to open toward the upper guide plate 21 and reset to the vertical state. The total time lasts 50 seconds.

[0043] In the embodiment of the present invention, the conveying device 3 comprises a first driving structure 31 disposed at the bottom of the crushing box 2 and a second driving structure 35 disposed above the collecting basin 4. A transmission belt 32 is connected between the first driving structure 31 and the second driving structure 35, and the transmission belt 32 rotates under the drive of the first driving structure 31 and the second driving structure 35. The transmission belt 32 is arranged at an angle, and the lower end of the transmission belt 32 is located above the collecting basin 4, so as to facilitate the conveying of the materials on the conveyor belt to the collecting basin 4. Specifically, the first driving structure 31 comprises a first motor, a first bracket and a first driving shaft rotatably connected to the first bracket, the first bracket is fixed to the bottom of the crushing box 2 through a short connecting rod 34, the first motor and the first driving shaft are connected to drive the first driving shaft to rotate; the second driving structure 35 comprises a second motor, a second bracket and a second driving shaft rotatably connected to the second bracket, the second bracket is fixed on the ground, the second motor and the second driving shaft are connected to drive the second driving shaft to rotate, and the first bracket and the second bracket are also connected to both sides with a long connecting rod 33.

[0044] In an embodiment of the present invention, the spray device 22 includes a connecting pipe 222 connected to a water source and a spray plate 221 connected to the connecting pipe 222 .

[0045] Specifically, concrete waste is put into the feed bin 1, the concrete crusher is turned on, the baffle 12 at the connection between the crushing box 2 and the feed bin 1 is closed, the spray device 22 starts to spray water mist, and the two gears 231 rotate inward to crush the concrete waste. The crushed waste passes through the lower filter screen 24 to filter the waste that meets the requirements and then falls from the discharge port 26, and is transported by the conveying device 3 to fall into the collection basin 4. The larger concrete blocks that have not passed through the lower filter screen 24 roll along the lower filter screen 24 into the collection trough 25. After the set time is reached, the lifting drive device will drive the collection trough 25 The concrete waste will be lifted upward along the slide 252, and will be intercepted by the limit rod 254 when it rises to a fixed height. The three buttons 253 on the top of the first side plate 257 of the collection trough 25 are pressed by the limit rod 254 at the same time, and the pushing device 251 is started. The second side plate 255 of the collection trough 25 opens in the direction of the upper guide plate 21 and finally connects with the bottom plate 256. The pushing device 251 moves along the collecting trough 25 toward the side of the gear 231, pushing the concrete block in the collecting trough 25 to slide along the upper guide plate 21 to between the two gears 231 for secondary crushing; the pushing device 251 is composed of a pushing plate 2511 and a pushing device 2512, wherein the pushing device 2512 is composed of a pushing fixing frame 25122 and a retractable propeller 25121 extending into the pushing plate 2511 and the inner side wall of the crushing box 2. When the pushing device 2512 is started, the X-shaped pushing component unit of the propeller in the retracted state gradually opens and stretches, thereby driving the pushing plate 2511 to move; in this embodiment, the upper guide plate 21 can also use a filter screen, and the upper guide plate 21 and the lower filter screen 24 can be replaced according to the particle size of the crushed concrete waste; the connecting pipe 222 of the external water source can be directly connected to the water pipe water source, or it can be externally mounted with a water tank to meet the use in an environment where the water source cannot be directly connected.

[0046] Embodiment 2:

[0047] The present invention also discloses a method for using the concrete crusher in the first embodiment, comprising the following steps:

[0048] Step S1, adding concrete waste into the feed bin 1.

[0049] Step S2, the concrete crusher is turned on, the baffle is closed, the spray device 22 starts to spray water mist, and the concrete waste is guided by the upper guide plate 21 and then enters the crushing gear set 23 for crushing.

[0050] Step S3, the concrete waste crushed by the crushing gear set 23 falls on the lower filter screen 24, and the lower filter screen 24 divides the concrete waste into two parts, one part passes through the lower filter screen 24 from the discharge port 26 through the conveying device 3 into the collection basin 4, and the other part enters the collection tank 25; the collection tank 25 is driven by the lifting drive device to rise along the slide 252 to the top of the slide 252, and the three buttons 253 are pressed at the same time under the pressure of the limit rod 254, and the second side plate 255 of the collection tank 25 is rotated outwardly and is in a horizontal state under the action of the three buttons 253, and the propulsion device 25 12 Under the action of the three buttons 253, the concrete waste in the collecting trough 25 is pushed onto the upper guide plate 21, and under the guidance of the upper guide plate 21, it re-enters the crushing gear set 23 for crushing, and then the lifting drive device drives the collecting trough 25 to move down and leave the limit rod 254, the three buttons 253 are in a loose state, the second side plate 255 of the collecting trough 25 rotates inward and is in a vertical state, the propulsion device 2512 drives the propulsion plate 2511 to move toward the direction of the first side plate 257, and the lifting drive device drives the collecting trough 25 to move down to the bottom of the slide 252 to continue collecting concrete waste.

[0051] It is not difficult to find that the second embodiment of the present invention is a method embodiment corresponding to the embodiment of the above concrete crusher, and this embodiment can be implemented in conjunction with the embodiment of the above concrete crusher. The relevant technical details mentioned in the embodiment of the above concrete crusher are still valid in this embodiment, and in order to reduce repetition, they are not repeated here. Accordingly, the relevant technical details mentioned in this embodiment can also be applied to the embodiment of the above concrete crusher.

[0052] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A concrete crusher, characterized in that: include: A crushing box, a feed bin disposed on the top of the crushing box, and a support column disposed on the bottom of the crushing box; The crushing box is provided with a spray device, an upper guide plate, a crushing gear set, a lower filter screen, a collecting tank and a lifting drive device, and the bottom of the crushing box is provided with a conveying device; The crushing box comprises a front side, a rear side, and a first side and a second side located between the front side and the rear side, a slide is arranged on the inner wall of the first side of the crushing box, the crushing gear set is rotatably connected between the front side and the rear side of the crushing box, and the crushing gear set is located in the middle of the crushing box, the spray device is arranged on the top of the side wall of the crushing box, the upper guide plate is obliquely fixed on the inner wall of the rear side of the crushing box, and the higher side of the upper guide plate is arranged adjacent to the first side of the crushing box, and the lower side of the upper guide plate is arranged opposite to the feed port of the crushing gear set; the collecting trough is slidably connected to the slide and can be lifted up and down along the slide under the drive of the lifting drive device, and a limiting rod is arranged on the top of the slide, a propulsion plate is arranged in the collecting trough, and a propulsion device connected with the propulsion plate is arranged on the collecting trough; The collecting trough comprises a bottom plate, a first side plate and a second side plate; the first side plate is slidably connected to the slide, the second side plate is rotatably connected to one side of the bottom plate, and at least two buttons are arranged on the top of the first side plate, the at least two buttons are respectively connected to the second side plate and the propulsion device, the second side plate rotates outwardly to be in a horizontal state when the at least two buttons are in a pressed state at the same time, and rotates inwardly to be in a vertical state when the at least two buttons are in a released state at the same time; the propulsion device pushes the propulsion plate to move in the direction of the upper guide plate when the at least two buttons are in a pressed state at the same time, and drives the propulsion plate to move in the direction of the first side plate when the at least two buttons are in a released state at the same time; and when the collecting trough reaches the top of the slide, the at least two buttons are in a pressed state at the same time under the pressing of the limit rod; The lower filter is obliquely arranged at the lower part of the crushing box, and the higher end of the lower filter is connected to the side wall of the second side of the crushing box, and the lower end of the lower filter is arranged near the bottom of the slideway so that when the collecting trough is located at the bottom of the slideway, the concrete waste that has not passed through the lower filter rolls into the collecting trough; A discharge port is provided at the bottom of the crushing box facing the lower filter screen so that the concrete waste filtered by the lower filter screen falls onto the conveying device, and the conveying device is inclined, and a collecting basin is provided at the lower discharge of the conveying device. The crushing box is provided with a spray device, an upper guide plate, a crushing gear set, a lower filter screen, a collecting tank and a lifting drive device, and the bottom of the crushing box is provided with a conveying device; The crushing box comprises a front side, a rear side, and a first side and a second side located between the front side and the rear side, a slide is arranged on the inner wall of the first side of the crushing box, the crushing gear set is rotatably connected between the front side and the rear side of the crushing box, and the crushing gear set is located in the middle of the crushing box, the spray device is arranged on the top of the side wall of the crushing box, the upper guide plate is obliquely fixed on the inner wall of the rear side of the crushing box, and the higher side of the upper guide plate is arranged adjacent to the first side of the crushing box, and the lower side of the upper guide plate is arranged opposite to the feed port of the crushing gear set; the collecting trough is slidably connected to the slide and can be lifted up and down along the slide under the drive of the lifting drive device, and a limiting rod is arranged on the top of the slide, a propulsion plate is arranged in the collecting trough, and a propulsion device connected with the propulsion plate is arranged on the collecting trough; The collecting trough comprises a bottom plate, a first side plate and a second side plate; the first side plate is slidably connected to the slide, the second side plate is rotatably connected to one side of the bottom plate, and at least two buttons are arranged on the top of the first side plate, the at least two buttons are respectively connected to the second side plate and the propulsion device, the second side plate rotates outwardly to be in a horizontal state when the at least two buttons are in a pressed state at the same time, and rotates inwardly to be in a vertical state when the at least two buttons are in a released state at the same time; the propulsion device pushes the propulsion plate to move in the direction of the upper guide plate when the at least two buttons are in a pressed state at the same time, and drives the propulsion plate to move in the direction of the first side plate when the at least two buttons are in a released state at the same time; and when the collecting trough reaches the top of the slide, the at least two buttons are in a pressed state at the same time under the pressing of the limit rod; The lower filter is obliquely arranged at the lower part of the crushing box, and the higher end of the lower filter is connected to the side wall of the second side of the crushing box, and the lower end of the lower filter is arranged near the bottom of the slideway so that when the collecting trough is located at the bottom of the slideway, the concrete waste that has not passed through the lower filter rolls into the collecting trough; A discharge port is provided at the bottom of the crushing box facing the lower filter screen so that the concrete waste filtered by the lower filter screen falls onto the conveying device, and the conveying device is inclined, and a collecting basin is provided at the lower discharge of the conveying device. The crushing box is provided with a spray device, an upper guide plate, a crushing gear set, a lower filter screen, a collecting tank and a lifting drive device, and the bottom of the crushing box is provided with a conveying device; The crushing box comprises a front side, a rear side, and a first side and a second side located between the front side and the rear side, a slide is arranged on the inner wall of the first side of the crushing box, the crushing gear set is rotatably connected between the front side and the rear side of the crushing box, and the crushing gear set is located in the middle of the crushing box, the spray device is arranged on the top of the side wall of the crushing box, the upper guide plate is obliquely fixed on the inner wall of the rear side of the crushing box, and the higher side of the upper guide plate is arranged adjacent to the first side of the crushing box, and the lower side of the upper guide plate is arranged opposite to the feed port of the crushing gear set; the collecting trough is slidably connected to the slide and can be lifted up and down along the slide under the drive of the lifting drive device, and a limiting rod is arranged on the top of the slide, a propulsion plate is arranged in the collecting trough, and a propulsion device connected with the propulsion plate is arranged on the collecting trough; The collecting trough comprises a bottom plate, a first side plate and a second side plate; the first side plate is slidably connected to the slide, the second side plate is rotatably connected to one side of the bottom plate, and at least two buttons are arranged on the top of the first side plate, the at least two buttons are respectively connected to the second side plate and the propulsion device, the second side plate rotates outwardly to be in a horizontal state when the at least two buttons are in a pressed state at the same time, and rotates inwardly to be in a vertical state when the at least two buttons are in a released state at the same time; the propulsion device pushes the propulsion plate to move in the direction of the upper guide plate when the at least two buttons are in a pressed state at the same time, and drives the propulsion plate to move in the direction of the first side plate when the at least two buttons are in a released state at the same time; and when the collecting trough reaches the top of the slide, the at least two buttons are in a pressed state at the same time under the pressing of the limit rod; The lower filter is obliquely arranged at the lower part of the crushing box, and the higher end of the lower filter is connected to the side wall of the second side of the crushing box, and the lower end of the lower filter is arranged near the bottom of the slideway so that when the collecting trough is located at the bottom of the slideway, the concrete waste that has not passed through the lower filter rolls into the collecting trough; A discharge port is provided at the bottom of the crushing box facing the lower filter screen so that the concrete waste filtered by the lower filter screen falls onto the conveying device, and the conveying device is inclined, and a collecting basin is provided at the lower discharge of the conveying device.

2. The concrete crusher according to claim 1, characterized in that: The top of the crushing box is provided with a baffle which can be opened and closed.

3. The concrete crusher according to claim 1, characterized in that: Three buttons are arranged on the top of the first side plate, and the three buttons are arranged at intervals on the top of the first side plate of the collecting tank.

4. The concrete crusher according to claim 3, characterized in that: The propulsion device comprises a propulsion fixing frame and a retractable propeller; The propulsion fixing frame passes through the first side plate and is connected to the propulsion plate. The retractable propeller is arranged in the propulsion fixing frame and is connected to the at least two buttons so as to be activated when the at least two buttons are simultaneously pressed. When the retractable propeller is activated, the retractable propeller pops out and propels the propulsion plate toward the direction of the upper guide plate.

5. The concrete crusher according to claim 1, characterized in that: The pulverizing gear set includes two gears that rotate inwardly in phase with each other.

6. The concrete crusher according to claim 1, characterized in that: The crushing box is also provided with a control panel connected to the lifting drive device, and the lifting drive device drives the collection tank to rise and fall according to the cycle set by the control panel.

7. The concrete crusher according to claim 1, characterized in that: The conveying device includes a first driving structure arranged at the bottom of the crushing box and a second driving structure arranged above the collecting basin. A transmission belt is connected between the first driving structure and the second driving structure, and the transmission belt rotates under the drive of the first driving structure and the second driving structure. The conveyor belt is arranged obliquely, and a lower end of the conveyor belt is located above the collecting basin.

8. The concrete crusher according to claim 7, characterized in that: The first driving structure includes a first motor, a first bracket and a first driving shaft rotatably connected to the first bracket, the first bracket is fixed to the bottom of the crushing box, and the first motor and the first driving shaft are connected to drive the first driving shaft to rotate; The second driving structure includes a second motor, a second bracket and a second driving shaft rotatably connected in the second bracket, the second bracket is fixed on the ground, and the second motor and the second driving shaft are connected to drive the second driving shaft to rotate.

9. The concrete crusher according to claim 1, characterized in that: The spray device comprises a connecting pipe connected to a water source and a spray plate connected to the connecting pipe.

10. A method for using the concrete crusher according to any one of claims 1 to 9, characterized in that: The steps include: Feeding concrete waste into the feed bin; The concrete crusher is turned on, the spray device starts to spray water mist, and the concrete waste is guided by the upper guide plate and then enters the crushing gear set for crushing; The concrete waste crushed by the crushing gear set falls on the lower filter screen, and the lower filter screen divides the concrete waste into two parts, one part passes through the lower filter screen from the discharge port through the conveying device into the collection basin, and the other part enters the collection trough; the collection trough rises along the slide to the top of the slide under the drive of the lifting drive device, the at least two buttons are simultaneously pressed under the pressure of the limit rod, the second side plate of the collection trough rotates outwardly under the action of the at least two buttons and is in a horizontal state, the propulsion device pushes the concrete waste in the collection trough onto the upper guide plate under the action of the at least two buttons, and re-enters the crushing gear set for crushing under the guidance of the upper guide plate, then the lifting drive device drives the collection trough to descend and leave the limit rod, the at least two buttons are in a loose state, the second side plate box of the collection trough rotates inwardly and is in a vertical state, the propulsion device drives the propulsion plate to move toward the direction of the first side plate, and the lifting drive device drives the collection trough to descend to the bottom of the slide to continue collecting concrete waste.

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