Building waste crushing device for building construction

Abstract

The invention discloses a construction waste crushing device for building construction, and relates to the technical field of construction waste treatment. The building waste crushing device comprises a shell and a crushing box communicating with the bottom of the shell, a rotating shaft is rotationally arranged in the shell, a movable frame is arranged on the rotating shaft and movably matched with an inner cavity of the shell, and a plurality of storage grooves are formed in the peripheral side of the surface of the movable frame, so that building waste fed into the crushing box is quantitatively controlled conveniently; the construction waste crushing device has the advantages that the construction waste crushing device is provided with the crushing box, the crushing box is internally provided with the two first rotating rods, the first rotating rods are provided with the first crushing rollers, and the lower side of the crushing box is rotatably provided with the two second rotating rods, so that the crushing treatment progress of the construction waste is affected; and a second crushing roller is arranged on the second rotating rod, so that the construction waste is conveniently crushed for multiple times, and the crushing effect of the device on the construction waste is effectively improved.

Description

Technical Field

[0001] The invention belongs to the technical field of construction waste treatment, and in particular relates to a construction waste crushing device for building construction. Background Art

[0002] Construction refers to the production activities in the implementation stage of engineering construction. It is the construction process of various buildings. It can also be said that it is the process of turning various lines on the design drawings into physical objects at designated locations. The construction waste generated during the construction process contains a large amount of concrete blocks. In order to facilitate the recycling and transportation of concrete blocks, crushing devices are used to crush them.

[0003] At present, when existing crushing devices crush construction waste, most of them only use a double-roller extrusion method to crush the construction waste once. The crushing effect is not good, and it is impossible to control the amount of construction waste put in at a time. It is easy for too much construction waste to be put into the device at one time, resulting in blockage, affecting the crushing progress of the construction waste. At the same time, for large-volume construction waste, the double-roller extrusion method cannot achieve the extrusion crushing effect, and it is impossible to filter the dust generated by the crushing. The dust is mixed with the block-shaped construction waste and discharged outward, which is easy to cause dust flying, causing air pollution in the workplace.

[0004] In this regard, we designed a construction waste crushing device for construction to solve the above problems. Summary of the invention

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a construction waste crushing device for construction, comprising a shell, a crushing box connected to the bottom of the shell, a rotating shaft rotatably arranged inside the shell, a movable frame arranged on the rotating shaft, the movable frame movably cooperates with the inner cavity of the shell, a plurality of material storage slots are opened on the peripheral side of the surface of the movable frame, two first rotating rods are rotatably arranged on the upper side of the crushing box, a first crushing roller is arranged on the first rotating rod, two second rotating rods are rotatably arranged on the lower side of the crushing box, a second crushing roller is arranged on the second rotating rod, and a second transmission assembly is arranged between the first rotating rod and the adjacent second rotating rod;

[0007] The rear end of the rotating shaft passes through the rear surface of the shell body, and the rear ends of the first rotating rod and the second rotating rod both pass through the rear surface of the crushing box. The left and right parts of the first rotating rods located outside the crushing box are respectively provided with a first gear and a second gear, and the first gear is meshed with the second gear. An intermittent motion component is provided between the rotating shaft and the first rotating rod on the right side, a filter plate is movably provided on the lower side of the crushing box, a reset shaking component is provided between the filter plate and the inner wall of the crushing box, and a primary crushing mechanism is provided on the upper side of the shell body.

[0008] The intermittent motion component includes a toggle plate, which is arranged on a rotating shaft. A plurality of arc-shaped grooves are opened on the circumferential surface of the toggle plate. A plurality of clamping grooves are opened through the toggle plate. The clamping grooves are arranged at intervals from the arc-shaped grooves. A support shaft is rotatably arranged on the lower side of the rear surface of the shell. A turntable is fixed on the support shaft. The turntable and the arc-shaped grooves on the toggle plate are movably matched.

[0009] A fixed block is fixed on one side of the turntable close to the shell, a shifting rod is fixed on the fixed block, the shifting rod is movably matched with the card slot, and a first transmission assembly is arranged between the support shaft and the first rotating rod on the right side.

[0010] The primary crushing mechanism includes a fixed frame, which is fixed on the rear surface of the shell. A hydraulic cylinder is installed on the top of the fixed frame. The telescopic end of the hydraulic cylinder passes through the fixed frame and is connected to a rectangular frame. A plurality of connecting rods are rotatably arranged on the rectangular frame. The lower ends of the connecting rods pass through the bottom of the rectangular frame and are connected to impact drill rods.

[0011] A linkage gear is arranged outside the connecting rod, and two adjacent linkage gears are meshed with each other. A crushing motor is installed on the top of the inner side of the rectangular frame, and the output end of the crushing motor is connected to the upper end of the connecting rod at the center position.

[0012] The reset shaking assembly includes a lifting plate, the filter plate is tiltedly arranged inside the crushing box, and the upper end of the filter plate is fixedly connected to the lifting plate, a guide groove is opened on one side of the inner wall of the crushing box, the lifting plate and the guide groove cooperate with each other, a movable plate is movably arranged in the guide groove, the movable plate is fixedly connected to the lifting plate, and a plurality of first springs are connected between the bottom of the movable plate and the inner wall of the guide groove.

[0013] A plurality of guide rods are fixed inside the guide groove, the guide rods penetrate the movable plate, and the movable plate and the guide rods are slidably matched, the first spring is sleeved on the outside of the guide rods, and the bottom of the guide groove is an inclined structure.

[0014] A discharge port is formed on one side of the inner wall of the crushing box away from the guide groove, the right end of the filter plate is movably matched with the discharge port, and a plurality of second springs are connected between the bottom of the filter plate and the inner wall of the discharge port.

[0015] A feed hopper is provided on the top of the shell body, and the impact drill rod is arranged directly above the feed hopper. Two guide plates are relatively fixed on the top of the inner side of the crushing box. The guide plates are inclined and cooperate with the feed port on the top of the crushing box. A movable door is movably installed on the lower side of one surface of the crushing box, and a baffle is elastically hinged on the outer wall of the crushing box, and the baffle cooperates with the discharge port.

[0016] The first transmission assembly and the second transmission assembly are both composed of a pulley and a transmission belt. A mounting bracket is fixed to the rear surface of the crushing box. A servo motor is installed inside the mounting bracket. The output end of the servo motor is connected to the rear end of the first rotating rod on the left.

[0017] The present invention has the following beneficial effects:

[0018] The present invention facilitates temporary storage of construction waste to be crushed through the storage trough, and combines with the intermittent motion component to achieve the purpose of adjusting the intermittent rotation of the movable frame, so as to conveniently drive the construction waste temporarily stored in the storage trough to turn to the feed inlet of the crushing box, so as to control the amount of construction waste entering the crushing box, and avoid too much construction waste entering the crushing box at one time, resulting in blockage and affecting the progress of construction waste crushing.

[0019] Under the meshing action of the first gear and the second gear, combined with the second transmission assembly, it is convenient to realize the synchronous rotation of the first crushing roller and the second crushing roller, thereby achieving the purpose of secondary crushing of the construction waste, and effectively improving the crushing effect of the device on the construction waste;

[0020] At the same time, under the action of the primary crushing mechanism, it is convenient to carry out preliminary crushing treatment on the large volume of construction waste entering the storage tank, which is convenient for subsequent crushing treatment, and avoids the large volume of construction waste, which makes the device unable to crush it, thus ensuring the use effect of the device;

[0021] The cooperation between the reset shaking component and the filter plate makes it easy to screen the crushed construction waste and screen out the dust generated by the crushing, so as to avoid the dust flying when the dust generated by the crushing is discharged together, resulting in air pollution in the workplace.

[0022] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0026] Figure 3 A top view of the present invention;

[0027] Figure 4 for Figure 3 Schematic diagram of the structure of the middle section BB;

[0028] Figure 5 for Figure 4 Schematic diagram of the enlarged structure at C in the middle;

[0029] Figure 6 for Figure 4 Schematic diagram of the enlarged structure at D in the middle;

[0030] Figure 7 for Figure 4 Schematic diagram of the enlarged structure at E in the middle;

[0031] Figure 8 for Figure 1 A schematic diagram of the structure from another perspective;

[0032] Fig. 9 for Figure 8 The enlarged structural diagram at F in the middle;

[0033] Fig.10 for Figure 8 Schematic diagram of the enlarged structure at G in the middle.

[0034] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0035] 1. Shell; 2. Crushing box; 3. Rotating shaft; 4. Movable frame; 5. Material storage trough; 6. First rotating rod; 7. First crushing roller; 8. Second rotating rod; 9. Second crushing roller; 10. Second transmission assembly; 11. Filter plate; 12. First gear; 13. Second gear; 14. Driving plate; 15. Slot; 16. Support shaft; 17. Turntable; 18. First transmission assembly; 19. Fixed block; 20. Driving rod; 21. Fixed frame; 22. Hydraulic cylinder; 23. Rectangular frame; 24. Crushing motor; 25. Connecting rod; 26. Impact drill rod; 27. Linkage gear; 28. Lifting plate; 29. ​​Guide groove; 30. Movable plate; 31. Guide rod; 32. First spring; 33. Second spring; 34. Feed hopper; 35. Discharge port; 36. Guide plate; 37. Movable door; 38. Baffle; 39. Servo motor. DETAILED DESCRIPTION

[0036] 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 technicians in this field without creative work are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0038] See also Figure 1-Figure 10 As shown, the present invention is a construction waste crushing device for construction, comprising a shell 1, a crushing box 2 connected to the bottom of the shell 1, a rotating shaft 3 is rotatably arranged inside the shell 1, a movable frame 4 is arranged on the rotating shaft 3, the movable frame 4 is movably matched with the inner cavity of the shell 1, a plurality of material storage grooves 5 are opened on the peripheral side of the surface of the movable frame 4, two first rotating rods 6 are rotatably arranged on the upper side of the crushing box 2, a first crushing roller 7 is arranged on the first rotating rod 6, two second rotating rods 8 are rotatably arranged on the lower side of the crushing box 2, a second crushing roller 9 is arranged on the second rotating rod 8, and a second transmission assembly 10 is arranged between the first rotating rod 6 and the adjacent second rotating rod 8;

[0039] The rear end of the rotating shaft 3 passes through the rear surface of the shell 1, and the rear ends of the first rotating rod 6 and the second rotating rod 8 both pass through the rear surface of the crushing box 2. The left and right first rotating rods 6 are located on the outside of the crushing box 2 and are respectively provided with a first gear 12 and a second gear 13. The first gear 12 is meshed with the second gear 13. An intermittent motion component is arranged between the rotating shaft 3 and the first rotating rod 6 on the right side. A filter plate 11 is movably arranged on the lower side of the crushing box 2, and a reset shaking component is arranged between the filter plate 11 and the inner wall of the crushing box 2. A primary crushing mechanism is arranged on the upper side of the shell 1.

[0040] In the above structure, the storage trough 5 is used to temporarily store the construction waste to be crushed, and the intermittent motion component is combined to achieve the purpose of adjusting the intermittent rotation of the movable frame 4, so as to conveniently drive the construction waste temporarily stored in the storage trough 5 to turn to the feeding port of the crushing box 2, so as to control the amount of construction waste entering the crushing box 2, and avoid too much construction waste entering the crushing box 2 at one time, resulting in blockage and affecting the progress of the construction waste crushing. Under the meshing action of the first gear 12 and the second gear 13, combined with the second transmission component 10, it is convenient to realize the synchronous rotation of the first crushing roller 7 and the second crushing roller 9, so as to achieve the purpose of secondary crushing of the construction waste, effectively improving the crushing effect of the device on the construction waste, and at the same time, under the action of the primary crushing mechanism, it is convenient to carry out preliminary crushing of the large volume of construction waste entering the storage trough 5, which is convenient for subsequent crushing and avoids the large volume of construction waste, which makes it impossible for the device to crush it, thereby ensuring the use effect of the device.

[0041] The intermittent motion component includes a dial 14, which is arranged on the rotating shaft 3. A plurality of arc-shaped grooves are provided on the peripheral surface of the dial 14. A plurality of slots 15 are provided through the dial 14. The slots 15 are spaced apart from the arc-shaped grooves. A support shaft 16 is rotatably provided on the lower side of the rear surface of the shell 1. A turntable 17 is fixed on the support shaft 16. The turntable 17 is movably matched with the arc-shaped grooves on the dial 14.

[0042] A fixing block 19 is fixed to one side of the turntable 17 close to the housing 1 , a lever 20 is fixed to the fixing block 19 , the lever 20 is movably matched with the slot 15 , and a first transmission assembly 18 is provided between the support shaft 16 and the first rotating rod 6 on the right side.

[0043] The primary crushing mechanism includes a fixed frame 21, which is fixed on the rear surface of the shell 1. A hydraulic cylinder 22 is installed on the top of the fixed frame 21. The telescopic end of the hydraulic cylinder 22 passes through the fixed frame 21 and is connected to a rectangular frame 23. A plurality of connecting rods 25 are rotatably arranged on the rectangular frame 23. The lower ends of the connecting rods 25 pass through the bottom of the rectangular frame 23 and are connected to impact drill rods 26.

[0044] A linkage gear 27 is arranged outside the connecting rod 25, and two adjacent linkage gears 27 mesh with each other. A crushing motor 24 is installed on the top of the inner side of the rectangular frame 23, and the output end of the crushing motor 24 is connected to the upper end of the connecting rod 25 at the center position.

[0045] The reset shaking assembly includes a lifting plate 28, the filter plate 11 is tiltedly arranged inside the crushing box 2, and the upper end of the filter plate 11 is fixedly connected to the lifting plate 28, a guide groove 29 is opened on one side of the inner wall of the crushing box 2, the lifting plate 28 and the guide groove 29 cooperate with each other, a movable plate 30 is movably arranged in the guide groove 29, the movable plate 30 is fixedly connected to the lifting plate 28, and a plurality of first springs 32 are connected between the bottom of the movable plate 30 and the inner wall of the guide groove 29.

[0046] A plurality of guide rods 31 are fixed inside the guide groove 29 . The guide rods 31 penetrate the movable plate 30 . The movable plate 30 and the guide rods 31 are slidably matched. The first spring 32 is sleeved on the outside of the guide rods 31 . The bottom of the guide groove 29 is an inclined structure.

[0047] A discharge port 35 is formed through the inner wall of the crushing box 2 away from the guide groove 29 . The right end of the filter plate 11 is movably matched with the discharge port 35 . A plurality of second springs 33 are connected between the bottom of the filter plate 11 and the inner wall of the discharge port 35 .

[0048] A feed hopper 34 is provided on the top of the shell 1, and the impact drill rod 26 is arranged directly above the feed hopper 34. Two guide plates 36 are relatively fixed on the top of the inner side of the crushing box 2. The guide plates 36 are inclined and cooperate with the feed port on the top of the crushing box 2. A movable door 37 is movably installed on the lower side of one surface of the crushing box 2. A baffle 38 is elastically hinged on the outer wall of the crushing box 2, and the baffle 38 cooperates with the discharge port 35.

[0049] The first transmission assembly 18 and the second transmission assembly 10 are both composed of a pulley and a transmission belt. A mounting bracket is fixed to the rear surface of the crushing box 2, and a servo motor 39 is installed inside the mounting bracket. The output end of the servo motor 39 is connected to the rear end of the first rotating rod 6 on the left side.

[0050] Example:

[0051] When crushing the construction waste, firstly, the construction waste to be crushed is put into the feed hopper 34, and then falls into the storage tank 5 aligned with the feed hopper 34;

[0052] When the volume of the thrown-in construction waste is large, the crushing motor 24 and the hydraulic cylinder 22 are started, and the crushing motor 24 drives the connecting rod 25 at the center position to rotate, combined with the meshing action of the adjacent linkage gears 27, and the rotation cooperation of the connecting rod 25 and the rectangular frame 23, thereby driving the multiple impact drill rods 26 to rotate synchronously;

[0053] At the same time, the hydraulic cylinder 22 drives the rectangular frame 23 to move downward, thereby driving the rotating impact drill rod 26 to move downward until the impact drill rod 26 contacts the construction waste in the storage tank 5 below, thereby achieving preliminary crushing of large-volume construction waste, solving the problem that the roller extrusion method cannot achieve the extrusion crushing effect when the existing crushing device crushes large-volume construction waste, and facilitating subsequent further crushing.

[0054] After the initial crushing is completed, the crushing motor 24 is turned off, and the rectangular frame 23 is adjusted to move up to the initial position;

[0055] Secondly, the servo motor 39 is started, and the first rotating rod 6 on the left side is driven to rotate by the servo motor 39. Under the meshing action of the first gear 12 and the second gear 13, the two first rotating rods 6 are driven to rotate synchronously, thereby driving the two first crushing rollers 7 to rotate synchronously;

[0056] Among them, under the action of the first transmission component 18, combined with the rotation cooperation of the support shaft 16 and the shell 1, the support shaft 16 is driven to rotate synchronously, and then the turntable 17 is driven to rotate, and the fixed block 19 is cooperated to drive the lever 20 to rotate synchronously in the direction close to the toggle plate 14, until the lever 20 enters the inside of the slot 15, with the rotation of the turntable 17, the toggle plate 14 is driven to rotate intermittently, combined with the rotating shaft 3, the movable frame 4 is driven to rotate intermittently synchronously, and then the construction waste that has been initially crushed in the corresponding storage tank 5 is driven to rotate, until the opening end of the storage tank 5 faces, so that the construction waste that has been initially crushed in it is dumped out, and under the action of the guide plate 36, it falls downward between the two first crushing rollers 7 for crushing processing, which solves the problem that the existing crushing device cannot control the amount of construction waste that is put in at a single time, and it is easy to have too much construction waste put into the device at one time, resulting in blockage, affecting the progress of construction waste crushing processing;

[0057] Under the action of the second transmission assembly 10, the second rotating rod 8 is driven to rotate synchronously, and then the two second crushing rollers 9 are driven to rotate. The construction waste crushed by the first crushing roller 7 falls downward and falls between the two second crushing rollers 9 for further crushing. This solves the problem that the existing crushing devices only use a roller extrusion method to crush the construction waste once when crushing the construction waste, and the crushing effect is not good.

[0058] After the construction waste is crushed, it falls down on the filter plate 11. Combined with the sliding cooperation between the movable plate 30 and the guide rod 31, the construction waste falling on the filter plate 11 squeezes the filter plate 11 downward. Since the movable frame 4 is always performing intermittent circular motion and the storage space of the storage tank 5 is limited, the construction waste that enters the crushing box 2 at a time is limited, which effectively avoids too much construction waste being put into the crushing box 2 at one time, causing blockage and affecting the crushing progress of the construction waste. At the same time, the construction waste that falls on the filter plate 11 is not continuous. Combined with the inclined setting of the filter plate 11 and the sliding cooperation between the movable plate 30 and the guide rod 31, the first spring 32 and the second spring 3 The elastic effect of 3 makes the filter plate 11 shake back and forth up and down, so that the building blocks falling on the filter plate 11 slide toward the discharge port 35. The dust in the crushed construction waste falls downward into the bottom of the inner cavity of the crushing box 2 through the filter holes on the filter plate 11. The granular construction waste slides along the filter plate 11. Under the elastic hinge action of the baffle 38, the baffle 38 is pushed outward and finally discharged through the discharge port 35, so that the crushed construction waste is screened and processed, and the existing crushing device cannot filter the dust generated by crushing. The dust is mixed with the blocky construction waste and discharged outward together, which is easy to cause dust flying and cause air pollution in the workplace.

[0059] The cooperation between the lifting plate 28 and the guide groove 29 effectively prevents the crushed construction waste from entering the guide groove 29 when falling toward the filter plate 11, thereby ensuring the use effect of the filter plate 11;

[0060] The elastic hinge of the baffle 38 effectively reduces the dust generated during the crushing process and is discharged through the discharge port 35, causing dust flying. After the construction waste is crushed, the movable door 37 is opened to clean out the dust accumulated at the bottom of the inner cavity of the crushing box 2.

[0061] It should be further explained that the installation structure, connection method or setting method of each component in the present invention are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented. At the same time, the crushing motor 24 and the servo motor 39 in the present invention are purchased on the market, and those skilled in the art can install and use them according to requirements;

[0062] The installation and use methods of the pulleys and the transmission belts in the first transmission assembly 18 and the second transmission assembly 10 of the present invention are all prior art and will not be described in detail here.

[0063] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0064] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A construction waste crushing device for construction, comprising a housing (1), characterized in that: The bottom of the shell (1) is connected to a crushing box (2), the shell (1) is provided with a rotating shaft (3) for rotation inside, a movable frame (4) is provided on the rotating shaft (3), the movable frame (4) is movably matched with the inner cavity of the shell (1), a plurality of material storage grooves (5) are provided on the peripheral side of the surface of the movable frame (4), two first rotating rods (6) are rotatably provided on the upper side of the crushing box (2), a first crushing roller (7) is provided on the first rotating rod (6), two second rotating rods (8) are rotatably provided on the lower side of the crushing box (2), a second crushing roller (9) is provided on the second rotating rod (8), and a second transmission assembly (10) is provided between the first rotating rod (6) and the adjacent second rotating rod (8); The rear end of the rotating shaft (3) passes through the rear surface of the shell (1); the rear ends of the first rotating rod (6) and the second rotating rod (8) both pass through the rear surface of the crushing box (2); the left and right parts of the first rotating rods (6) located outside the crushing box (2) are respectively provided with a first gear (12) and a second gear (13); the first gear (12) and the second gear (13) are meshed; an intermittent motion component is provided between the rotating shaft (3) and the first rotating rod (6) on the right side; a filter plate (11) is movably provided on the lower side of the crushing box (2); a reset shaking component is provided between the filter plate (11) and the inner wall of the crushing box (2); and a primary crushing mechanism is provided on the upper side of the shell (1).

2. The construction waste crushing device for construction according to claim 1, characterized in that: The intermittent motion component comprises a dial (14), the dial (14) being arranged on a rotating shaft (3), a plurality of arc-shaped grooves being provided on the peripheral surface of the dial (14), a plurality of slots (15) being provided through the dial (14), the slots (15) being arranged at intervals from the arc-shaped grooves, a support shaft (16) being rotatably arranged on the lower side of the rear surface of the housing (1), a rotating disc (17) being fixed on the support shaft (16), and the rotating disc (17) being movably matched with the arc-shaped grooves on the dial (14).

3. The construction waste crushing device for construction according to claim 2, characterized in that: A fixed block (19) is fixed on a side of the rotating disk (17) close to the housing (1), a lever (20) is fixed on the fixed block (19), the lever (20) is movably matched with the card slot (15), and a first transmission assembly (18) is arranged between the support shaft (16) and the first rotating rod (6) on the right side.

4. The construction waste crushing device for construction according to claim 3, characterized in that: The primary crushing mechanism comprises a fixed frame (21), the fixed frame (21) is fixed on the rear surface of the housing (1), a hydraulic cylinder (22) is installed on the top of the fixed frame (21), the telescopic end of the hydraulic cylinder (22) passes through the fixed frame (21) and is connected to a rectangular frame (23), a plurality of connecting rods (25) are rotatably arranged on the rectangular frame (23), and the lower ends of the connecting rods (25) pass through the bottom of the rectangular frame (23) and are connected to impact drill rods (26).

5. The construction waste crushing device for construction according to claim 4, characterized in that: A linkage gear (27) is arranged outside the connecting rod (25), and two adjacent linkage gears (27) are meshed with each other. A crushing motor (24) is installed on the top of the inner side of the rectangular frame (23), and the output end of the crushing motor (24) is connected to the upper end of the connecting rod (25) at the center position.

6. The construction waste crushing device for construction according to claim 5, characterized in that: The reset shaking assembly comprises a lifting plate (28), the filter plate (11) is tiltedly arranged inside the crushing box (2), and the upper end of the filter plate (11) is fixedly connected to the lifting plate (28), a guide groove (29) is opened on one side of the inner wall of the crushing box (2), the lifting plate (28) and the guide groove (29) cooperate with each other, a movable plate (30) is movably arranged in the guide groove (29), the movable plate (30) is fixedly connected to the lifting plate (28), and a plurality of first springs (32) are connected between the bottom of the movable plate (30) and the inner wall of the guide groove (29).

7. The construction waste crushing device for construction according to claim 6, characterized in that: A plurality of guide rods (31) are fixed inside the guide groove (29), the guide rods (31) penetrate the movable plate (30), and the movable plate (30) and the guide rods (31) are slidably matched, the first spring (32) is sleeved on the outside of the guide rods (31), and the bottom of the guide groove (29) is an inclined structure.

8. The construction waste crushing device for construction according to claim 7, characterized in that: A discharge port (35) is formed through the inner wall of the crushing box (2) at a side away from the guide groove (29); the right end of the filter plate (11) is movably matched with the discharge port (35); and a plurality of second springs (33) are connected between the bottom of the filter plate (11) and the inner wall of the discharge port (35).

9. The construction waste crushing device for construction according to claim 8, characterized in that: A feed hopper (34) is arranged on the top of the shell (1), and the impact drill rod (26) is arranged directly above the feed hopper (34). Two guide plates (36) are relatively fixed on the top of the inner side of the crushing box (2), and the guide plates (36) are arranged obliquely and cooperate with the feed opening on the top of the crushing box (2). A movable door (37) is movably installed on the lower side of a surface of the crushing box (2), and a baffle (38) is elastically hinged on the outer wall of the crushing box (2), and the baffle (38) cooperates with the discharge opening (35).

10. The construction waste crushing device for construction according to claim 9, characterized in that: The first transmission assembly (18) and the second transmission assembly (10) are both composed of a pulley and a transmission belt. A mounting bracket is fixed to the rear surface of the crushing box (2). A servo motor (39) is mounted inside the mounting bracket. The output end of the servo motor (39) is connected to the rear end of the first rotating rod (6) on the left side.

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