Building waste crushing device for building construction and using method thereof

Abstract

The invention belongs to the technical field of construction equipment, and discloses a construction waste crushing device for building construction, which comprises an upper shell and a lower shell, and further comprises a screening mechanism arranged in the inner wall of the upper shell; the support is fixedly connected to the outer wall of the upper shell, and the outer wall of the support is arranged on the air pipe through a connecting mechanism; the crushing roller is arranged in the inner wall of the upper shell through a driving module; the discharging mechanism is arranged in the inner wall of the lower shell; the screening mechanism comprises a moving block, and a screen is connected to the inner wall of the moving block in a clamped mode. The connecting mechanism comprises a wedge-shaped block; the wedge-shaped block is elastically connected into the inner wall of the bracket through an elastic piece B; through cooperation of structures such as the screen and the slope block, crushed garbage can be uniformly spread on the surface of the screen when falling on the screen, and cannot be accumulated on one part of the screen to affect the screening effect.

Description

Technical Field

[0001] The present invention belongs to the technical field of construction equipment, and specifically relates to a construction waste crushing device for building construction and its usage method. Background Technique

[0002] The construction waste crushing device for building construction is a professional device applied to the building construction scenario. It mainly crushes construction waste such as concrete blocks, bricks and tiles, and stones generated during the construction process through processes such as crushing and screening, making it into reusable aggregates or raw materials, which has the advantages of improving resource utilization rate, reducing construction waste emissions, reducing environmental pollution and construction costs.

[0003] During the process of crushing construction waste, since some waste may be relatively hard in material and relatively large in the initial state, it cannot be completely crushed after one-time crushing and still remains in a relatively large state, which does not meet the requirements of crushing. In some existing technologies, a screen is provided inside the crushing device. The screen only allows the completely crushed and appropriately sized waste to pass through, and the larger waste will remain on the screen and needs to be further screened. When the crushed waste falls on the screen, it will accumulate at a certain place on the screen, and it does not have the function of evenly spreading the waste. A large accumulation in one place will cause the screen to become blocked and affect the screening effect. Therefore, a construction waste crushing device for building construction and its usage method are proposed for the above problems. Summary of the Invention

[0004] To solve the problems raised in the above background technique, the present invention provides a construction waste crushing device for building construction and its usage method.

[0005] To achieve the above object, the present invention provides the following technical solution: A construction waste crushing device for building construction, including an upper housing and a lower housing, and further including:

[0006] A screening mechanism, which is arranged in the inner wall of the upper housing;

[0007] A bracket, which is fixedly connected to the outer wall of the upper housing, and the outer wall of the bracket is provided with an air duct through a connection mechanism;

[0008] A crushing roller, which is arranged in the inner wall of the upper housing through a driving module;

[0009] A discharging mechanism, which is arranged in the inner wall of the lower housing;

[0010] Among them, the screening mechanism includes a moving block, and a screen is clamped in the inner wall of the moving block;

[0011] The connection mechanism includes a wedge-shaped block, and the wedge-shaped block is elastically connected to the inner wall of the bracket through an elastic member B;

[0012] The discharging mechanism includes a waste box, and the waste box is hinged with a connecting block C through a hinge rod.

[0013] Preferably, a fixing block is fixedly connected to the outer wall of the upper shell, an output shaft of the driving module is fixedly connected with a turntable, a rotating rod is fixedly connected to the outer wall of the turntable, an inclined block is hinged to the outer wall of the rotating rod through a connecting rod, a sliding rod is slidably connected to the inner wall of the upper shell, the moving block is elastically connected to the inner wall of the upper shell through a return spring, a square block is elastically connected to the inner wall of the screen through an elastic member A, a groove is formed in the outer wall of the moving block, and a baffle is hinged to the outer wall of the upper shell.

[0014] Preferably, the moving block is slidably connected to the inner wall of the upper shell, one end of the sliding rod is slidably connected to the outer wall of the inclined block, the other end of the sliding rod is fixedly connected to the outer wall of the moving block, and the inclined block is slidably connected to the inner wall of the fixing block.

[0015] Preferably, two ends of the connecting rod are respectively hinged to the outer walls of the rotating rod and the inclined block, one end of the elastic member A is fixedly connected to the outer wall of the square block, the other end of the elastic member A is fixedly connected to the inner wall of the moving block, the square block is slidably connected to the inner wall of the moving block, and the square block is clamped with the groove.

[0016] Preferably, a long rod is slidably connected to the inner wall of the bracket, a trapezoidal block is slidably connected to the inner wall of the bracket, and a slot is formed in the outer wall of the air duct.

[0017] Preferably, the wedge-shaped block is slidably connected to the inner wall of the bracket, one end of the elastic member B is fixedly connected to the outer wall of the wedge-shaped block, the other end of the elastic member B is fixedly connected to the inner wall of the bracket, and the wedge-shaped block is clamped with the slot.

[0018] Preferably, one end of the long rod is slidably connected to the outer wall of the trapezoidal block, the other end of the long rod is fixedly connected to the outer wall of the wedge-shaped block, and the air duct is in contact with the inner wall of the bracket.

[0019] Preferably, a door panel is hinged to the outer wall of the lower shell, a connecting block A is fixedly connected to the outer wall of the door panel, a connecting block B is fixedly connected to the inner wall of the lower shell, and ropes are wound around the outer walls of the connecting blocks A, B, and C.

[0020] Preferably, the waste box is slidably connected to the inner wall of the lower shell, two ends of the rope are respectively fixedly connected to the outer walls of the connecting blocks A and C, two ends of the hinge rod are respectively hinged to the outer walls of the waste box and the connecting block C, and the connecting block C is slidably connected to the inner wall of the lower shell.

[0021] This application also proposes a usage method of a construction waste crushing device for construction, including the following steps:

[0022] S1. Insert the air duct into the bracket, and the air duct squeezes the wedge block. After it is fully inserted, the elastic force of the elastic member B drives the wedge block to pop out and is fixed with the slot to ensure that it is connected with the air pump;

[0023] S2. Put the construction waste into the upper shell from the feed port, start the driving module, drive the crushing roller to rotate and crush the waste, and drive the turntable and the rotating rod to rotate at the same time. The inclined block is driven to move up and down reciprocatingly through the connecting rod. The inclined block drives the moving block and the screen to move reciprocatingly horizontally through the sliding rod to evenly screen the crushed waste. The crushed waste falls into the waste box through the screen, and the large waste that is not completely crushed remains on the screen. The air pump discharges the dust through the air duct;

[0024] S3. After the crushing is completed, the baffle can be opened, the square block can be pressed to remove the screen, and the remaining garbage can be poured back into the upper shell for further crushing. The screen can then be reinstalled through the square block and the groove, and the drive module can be started to ensure that the garbage is completely crushed;

[0025] S4. After the crushing is completed, the door panel can be opened, and the connecting block C can be pulled by the pull rope to drive the hinged rod to flip and pull out the waste box to clean the garbage. After cleaning, push the waste box back and the door panel will be automatically closed at the same time;

[0026] S5. Push the protrusion on the outer wall of the trapezoidal block upwards to disengage the wedge-shaped block from the slot, disassemble the air duct for cleaning and maintenance, and reinstall it according to the installation steps after cleaning.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The present invention sets the coordination of the structures such as the screen and the inclined plane block. When the driving module drives the crushing roller to crush, the rotating disk, the rotating rod, the connecting rod, the inclined plane block, etc. can drive the moving block and the screen to move synchronously back and forth horizontally. When the crushed garbage falls on the screen, it can be spread on its surface more evenly, and will not accumulate in one place on the screen to affect the screening effect. When the garbage screened by the screen enters the waste bin, it is also more even, and will not accumulate in one place in the waste bin.

[0029] The present invention cooperates with structures such as a wedge block and a bracket, and the wedge block and the slot can be used to complete the installation of the air duct, and the air duct is fixed on the bracket. By moving the trapezoidal block, the wedge block and the slot can be disengaged, and the air duct can be removed for maintenance after the fixation is released. There is no need to rotate the bolts multiple times to disassemble and install it, and the operation is relatively convenient and quick.

[0030] Through the cooperation of structures such as a door panel and a hinge rod, the present invention can drive a waste bin to move outward synchronously through a connecting block A, a connecting block B, a connecting block C, a pull rope and the hinge rod while opening the door panel. When the waste bin is pushed into the lower housing, the hinge rod flips in the reverse direction, the connecting block C moves in the reverse direction, and the pull rope will pull the door panel to close automatically, so that the door panel and the waste bin can cooperate with each other as a step, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 Schematic diagram of the main structure of the present invention;

[0032] Figure 2 Schematic diagram of the sectional structure of the upper housing of the present invention;

[0033] Figure 3 Schematic diagram of the sectional structure of the upper housing and the screening mechanism of the present invention;

[0034] Figure 4 Schematic diagram of the sectional structure of the upper housing and the screen of the present invention;

[0035] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of part A;

[0036] Figure 6 Schematic diagram of the sectional structure of the bracket and the decomposed air duct of the present invention;

[0037] Figure 7 Schematic diagram of the sectional structure of the lower housing of the present invention;

[0038] Figure 8 Schematic diagram of the sectional structure of the lower housing and the discharging mechanism of the present invention.

[0039] In the figure: 1. Upper housing; 2. Lower housing; 3. Screening mechanism; 301. Turntable; 302. Rotating rod; 303. Connecting rod; 304. Inclined block; 305. Slide bar; 306. Return spring; 307. Moving block; 308. Screen; 309. Baffle; 310. Fixed block; 311. Elastic member A; 312. Square block; 313. Groove; 4. Connecting mechanism; 401. Elastic member B; 402. Wedge block; 403. Long rod; 404. Trapezoidal block; 405. Slot; 5. Discharging mechanism; 501. Door panel; 502. Connecting block A; 503. Pull rope; 504. Connecting block B; 505. Connecting block C; 506. Hinge rod; 507. Waste bin; 6. Bracket; 7. Air duct; 8. Crushing roller; 9. Driving module. DETAILED DESCRIPTION OF THE INVENTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0041] As Figures 1 to 8 shown, the present invention provides a construction waste crushing device for construction, including an upper housing 1 and a lower housing 2, and further including:

[0042] A screening mechanism 3, which is arranged in the inner wall of the upper housing 1;

[0043] A bracket 6, which is fixedly connected to the outer wall of the upper housing 1, and the outer wall of the bracket 6 is provided with an air duct 7 through a connecting mechanism 4;

[0044] A crushing roller 8, which is arranged in the inner wall of the upper housing 1 through a driving module 9;

[0045] A discharging mechanism 5, which is arranged in the inner wall of the lower housing 2;

[0046] Among them, the screening mechanism 3 includes a moving block 307, and a screen 308 is clamped in the inner wall of the moving block 307;

[0047] The connecting mechanism 4 includes a wedge block 402, and the wedge block 402 is elastically connected in the inner wall of the bracket 6 through an elastic member B401;

[0048] The discharging mechanism 5 includes a waste box 507, and the waste box 507 is hinged with a connecting block C505 through a hinge rod 506.

[0049] Adopting the above solution: The upper housing 1 is fixed above the lower housing 2 to form the main body of the housing of the construction waste crushing device. An inlet is arranged above the upper housing 1, and garbage can be put into the upper housing 1 from the inlet. The crushing roller 8 is driven to rotate through the driving module 9 in the upper housing 1 to crush the garbage, which is the prior art; the crushed garbage is screened by the screening mechanism 3, and the smaller garbage will fall into the waste box 507, while the uncompletely crushed garbage will remain on the screen 308, and the screen 308 can be taken out to re-crush this part of the garbage; an air pump is fixed on the bracket 6, and the air pump can discharge the dust generated during the garbage crushing process through the air duct 7. The air duct 7 can be conveniently and quickly fixed outside the bracket 6 through the connecting mechanism 4, which is convenient for disassembly and installation for cleaning.

[0050] As Figures 2 to 5As shown in the figure, a fixed block 310 is fixedly connected to the outer wall of the upper housing 1. The output shaft of the driving module 9 is fixedly connected to a turntable 301. A rotating rod 302 is fixedly connected to the outer wall of the turntable 301. An inclined block 304 is articulated to the outer wall of the rotating rod 302 through a connecting rod 303. A sliding rod 305 is slidably connected to the inner wall of the upper housing 1. A moving block 307 is elastically connected to the inner wall of the upper housing 1 through a return spring 306. A square block 312 is elastically connected to the inner wall of a screen 308 through an elastic member A311. A groove 313 is formed in the outer wall of the moving block 307. A baffle 309 is articulated to the outer wall of the upper housing 1.

[0051] Adopting the above scheme: The driving module 9 is a prior art, and a motor is arranged inside, which can drive the crushing roller 8 to rotate for garbage crushing. The motor can be a double-shaft motor, with one output shaft fixed to the crushing roller 8 and the other output shaft fixed to the turntable 301; the turntable 301, the rotating rod 302, and the connecting rod 303 can drive the inclined block 304 to reciprocate up and down. The copper hot pot sliding rod 305 and the return spring 306 drive the moving block 307 and the screen 308 to reciprocate horizontally, so that the garbage on the screen 308 is spread more evenly and will not accumulate at a certain place on the screen 308, affecting the screening efficiency. And when the garbage falls from the screen 308 into the waste box 507, it will also be evenly spread in the waste box 507; a plurality of groups of holes with the same size are formed in the screen 308. The smaller crushed garbage can fall downward into the waste box 507 through the holes, while the larger uncompletely crushed garbage will remain on the screen 308; the baffle 309 is in a closed state during the garbage crushing process. When it is opened, the screen 308 can be taken out, and the remaining garbage on it can be poured back into the upper housing 1 for further crushing.

[0052] As Figures 2 to 5 As shown in the figure, the moving block 307 is slidably connected to the inner wall of the upper housing 1. One end of the sliding rod 305 is slidably connected to the outer wall of the inclined block 304, and the other end of the sliding rod 305 is fixedly connected to the outer wall of the moving block 307. The inclined block 304 is slidably connected to the inner wall of the fixed block 310; both ends of the connecting rod 303 are respectively articulated to the outer walls of the rotating rod 302 and the inclined block 304. One end of the elastic member A311 is fixedly connected to the outer wall of the square block 312, and the other end of the elastic member A311 is fixedly connected to the inner wall of the moving block 307. The square block 312 is slidably connected to the inner wall of the moving block 307, and the square block 312 is engaged with the groove 313.

[0053] Adopting the above solution: When the driving module 9 is started, the turntable 301 will rotate accordingly, driving the rotating rod 302 to rotate, causing the end of the connecting rod 303 fixed to the rotating rod 302 to rotate along a circular path. Since the other end of the connecting rod 303 is hinged to the inclined block 304, and the inclined block 304 can only move up and down within the inner wall of the fixed block 310, it will drive the inclined block 304 to perform reciprocating vertical movement. The overall mechanism is a crank - connecting rod mechanism. The slide bar 305 can only move horizontally within the upper housing 1 and passes through one side outer wall of the upper housing 1. When the inclined block 304 moves up and down, the slide bar 305 will move along its inclined surface, thereby performing reciprocating horizontal movement, driving the moving block 307 and the screen 308 to move synchronously. During the movement of the moving block 307, the return spring 306 will be compressed and can be reset under the action of its elastic force. The screen 308 is fixedly connected to the inner wall of the moving block 307 through the square block 312 and the groove 313. When it is necessary to remove the screen 308, the baffle 309 can be opened, and the two square blocks 312 can be pressed to move them into the inner wall of the screen 308, compressing the elastic member A311 and disengaging from the groove 313, then the screen 308 can be removed. Similarly, when installing the screen 308 on the moving block 307, first press the square block 312 and then insert the screen 308 into the moving block 307. When it moves to the position where the square block 312 and the groove 313 correspond to each other, under the elastic force of the elastic member A311, the square block 312 pops out and is engaged with the groove 313, completing the installation of the screen 308 and fixing it to the moving block 307.

[0054] As Figure 6 shown, a long rod 403 is slidably connected to the inner wall of the bracket 6, a trapezoidal block 404 is slidably connected to the inner wall of the bracket 6, and a slot 405 is formed in the outer wall of the air duct 7.

[0055] Adopting the above solution: A through - slot is formed in the outer wall of the bracket 6, and the air duct 7 can be connected to the outlet of the air pump through the through - slot. Since dust or impurities will adhere to the inner wall of the air duct 7 after long - term use and need to be cleaned and maintained, the connecting mechanism 4 can be used to disassemble and install it conveniently and quickly. The arc surface of the wedge - shaped block 402 always faces the side where the air duct 7 is installed. The air duct 7 can be fixed in the bracket 6 by engaging the wedge - shaped block 402 with the slot 405. A convex block is provided on the outer wall of the trapezoidal block 404, and the convex block passes through one side outer wall of the bracket 6, and the convex block can be toggled to drive the trapezoidal block 404 to move within the inner wall of the bracket 6.

[0056] As Figure 6As shown, the wedge block 402 is slidably connected to the inner wall of the bracket 6. One end of the elastic member B401 is fixedly connected to the outer wall of the wedge block 402, and the other end of the elastic member B401 is fixedly connected to the inner wall of the bracket 6. The wedge block 402 is snap-connected to the slot 405; one end of the long rod 403 is slidably connected to the outer wall of the trapezoidal block 404, and the other end of the long rod 403 is fixedly connected to the outer wall of the wedge block 402. The air duct 7 is in contact with the inner wall of the bracket 6.

[0057] Adopting the above scheme: Under normal conditions, the elastic member B401 keeps the wedge block 402 in a popped state due to its own elastic force. At this time, the wedge block 402 drives the long rods 403 on both sides to contact the short-side inclined surface of the trapezoidal block 404; when installing the air duct 7, insert the air duct 7 into the bracket 6, and its outer wall squeezes the arc surface of the wedge block 402, causing it to move to both sides into the inner wall of the bracket 6 and compress the elastic member B401; when the air duct 7 is completely inserted into the bracket 6, the positions of the wedge block 402 and the slot 405 correspond to each other. Under the action of the elastic force of the elastic member B401, the wedge block 402 pops out and is snap-connected to the slot 405, and the fixing of the air duct 7 can be completed; when disassembling the air duct 7, the convex block on the outer wall of the trapezoidal block 404 can be toggled upward to make the trapezoidal block 404 move upward synchronously. The inclined surfaces on both sides of it squeeze the two groups of long rods 403, causing them to drive the corresponding wedge blocks 402 to move to both sides and disengage from the slot 405, and the air duct 7 can be removed. There is no need to disassemble and install it by rotating the bolts multiple times, which is more convenient and fast.

[0058] As Figures 7 to 8 As shown, a door panel 501 is hinged to the outer wall of the lower housing 2. A connecting block A502 is fixedly connected to the outer wall of the door panel 501. A connecting block B504 is fixedly connected to the inner wall of the lower housing 2. A pulling rope 503 is wound around the outer walls of the connecting block A502, the connecting block B504, and the connecting block C505.

[0059] Adopting the above scheme: The door panel 501 can be opened or closed. When opened, it will drive the waste bin 507 to move linearly outward, and the waste bin 507 can be automatically pulled out. When closed, pushing the waste bin 507 can close the door panel 501. There is no need to operate in two steps, which is more convenient. When opening the door panel 501 to pull out the waste bin 507, the crushed garbage inside it can be processed; during the process of opening the door panel 501, it will drive one end of the connecting block A502 and the pulling rope 503 to move. The pulling rope 503 slides on the outer wall of the connecting block B504, and the other end of it will pull the connecting block C505 to move in the inner wall of the lower housing 2.

[0060] As Figures 7 to 8As shown in the figure, the waste bin 507 is slidably connected to the inner wall of the lower housing 2. Both ends of the pull rope 503 are fixedly connected to the outer walls of the connecting block A 502 and the connecting block C 505. Both ends of the hinge rod 506 are hinged to the outer walls of the waste bin 507 and the connecting block C 505 respectively. The connecting block C 505 is slidably connected in the inner wall of the lower housing 2.

[0061] Adopting the above solution: when the pull rope 503 drives the connecting block C 505 to move, the connecting block C 505 will drive the end of the hinge rod 506 connected to it to move. Since the connecting block C 505 can only move horizontally, the other end of the hinge rod 506 is thus driven to push the waste bin 507 to move outwards, and the hinge rod 506 flips, so that the waste bin 507 can be moved outwards while opening the door panel 501; when it is necessary to close the door panel 501, the waste bin 507 can be pushed into the inner wall of the lower housing 2. The waste bin 507 drives the hinge rod 506 to flip in the reverse direction, and drives the connecting block C 505 to reset. The connecting block C 505 pulls the pull rope 503, which drives the connecting block A 502 and the door panel 501 to move, and the door panel 501 can be closed. Thus, through the setting of the discharging mechanism 5, opening the door panel 501 and pulling out the waste bin 507 are combined into one operation, which is relatively convenient to use.

[0062] The present application also proposes a method for using a construction waste crushing device for building construction, including the following steps:

[0063] S1. Insert the air duct 7 into the bracket 6. The air duct 7 presses the wedge block 402. After being completely inserted, the elastic member B 401 drives the wedge block 402 to pop out by its elastic force and is clamped and fixed with the slot 405 to ensure communication with the air pump.

[0064] S2. Put the construction waste into the upper housing 1 from the feeding port, start the driving module 9 to drive the crushing roller 8 to rotate and crush the waste. At the same time, drive the turntable 301 and the rotating rod 302 to rotate, drive the inclined plane block 304 to reciprocate up and down through the connecting rod 303. The inclined plane block 304 drives the moving block 307 and the screen 308 to reciprocate horizontally through the sliding rod 305 to evenly screen the crushed waste. The crushed waste falls into the waste bin 507 through the screen 308, and the larger waste that is not completely crushed remains on the screen 308. The air pump discharges the dust through the air duct 7.

[0065] S3. After the crushing is completed, the baffle 309 can be opened, the square block 312 can be pressed to take out the screen 308, the residual waste is poured back into the upper housing 1 for further crushing, and then the screen 308 is reinstalled by clamping the square block 312 with the groove 313, and the driving module 9 is started to ensure that the waste is completely crushed.

[0066] S4, after the crushing is completed, the door panel 501 can be opened, and the connecting block C505 can be pulled by the pull rope 503 to drive the hinged rod 506 to flip and pull out the waste box 507 to clean the garbage. After cleaning, the waste box 507 is pushed back and the door panel 501 is automatically closed at the same time;

[0067] S5. Push the protrusion on the outer wall of the trapezoidal block 404 upwards to disengage the wedge block 402 from the slot 405, disassemble the air duct 7 for cleaning and maintenance, and reinstall it according to the installation steps after cleaning.

[0068] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0069] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A construction waste crushing device for construction, comprising an upper housing (1) and a lower housing (2), characterized in that: It also includes: a screening mechanism (3) disposed in the inner wall of the upper housing (1); a bracket (6) fixedly connected to the outer wall of the upper housing (1), and the outer wall of the bracket (6) is disposed on the air duct (7) through a connecting mechanism (4); a crushing roller (8) disposed in the inner wall of the upper housing (1) through a driving module (9); a discharging mechanism (5) disposed in the inner wall of the lower housing (2); wherein, the screening mechanism (3) includes a moving block (307), and a screen (308) is clamped in the inner wall of the moving block (307); the connecting mechanism (4) includes a wedge block (402), and the wedge block (402) is elastically connected in the inner wall of the bracket (6) through an elastic member B (401); the discharging mechanism (5) includes a waste box (507), and the waste box (507) is hinged with a connecting block C (505) through a hinge rod (506).

2. The construction waste crushing device for construction according to claim 1, characterized in that: A fixed block (310) is fixedly connected to the outer wall of the upper housing (1), the output shaft of the driving module (9) is fixedly connected with a turntable (301), a rotating rod (302) is fixedly connected to the outer wall of the turntable (301), a bevel block (304) is hinged to the outer wall of the rotating rod (302) through a connecting rod (303), a sliding rod (305) is slidably connected to the inner wall of the upper housing (1), the moving block (307) is elastically connected to the inner wall of the upper housing (1) through a return spring (306), a square block (312) is elastically connected to the inner wall of the screen (308) through an elastic member A (311), a groove (313) is formed in the outer wall of the moving block (307), and a baffle (309) is hinged to the outer wall of the upper housing (1).

3. The construction waste crushing device for construction according to claim 2, characterized in that: The moving block (307) is slidably connected to the inner wall of the upper housing (1), one end of the sliding rod (305) is slidably connected to the outer wall of the bevel block (304), the other end of the sliding rod (305) is fixedly connected to the outer wall of the moving block (307), and the bevel block (304) is slidably connected to the inner wall of the fixed block (310).

4. The construction waste crushing device for construction according to claim 2, characterized in that: Both ends of the connecting rod (303) are respectively hinged to the outer walls of the rotating rod (302) and the bevel block (304), one end of the elastic member A (311) is fixedly connected to the outer wall of the square block (312), the other end of the elastic member A (311) is fixedly connected to the inner wall of the moving block (307), the square block (312) is slidably connected to the inner wall of the moving block (307), and the square block (312) is clamped with the groove (313).

5. The construction waste crushing device for construction according to claim 1, characterized in that: A long rod (403) is slidably connected to the inner wall of the bracket (6), a trapezoidal block (404) is slidably connected to the inner wall of the bracket (6), and a slot (405) is formed in the outer wall of the air duct (7).

6. The construction waste crushing device for construction according to claim 5, characterized in that: The wedge block (402) is slidably connected to the inner wall of the bracket (6). One end of the elastic member B (401) is fixedly connected to the outer wall of the wedge block (402), and the other end of the elastic member B (401) is fixedly connected to the inner wall of the bracket (6). The wedge block (402) is snap-connected to the slot (405).

7. The construction waste crushing device for construction according to claim 5, characterized in that: One end of the long rod (403) is slidably connected to the outer wall of the trapezoidal block (404), and the other end of the long rod (403) is fixedly connected to the outer wall of the wedge block (402). The air duct (7) is in contact with the inner wall of the bracket (6).

8. The construction waste crushing device for construction according to claim 1, characterized in that: A door panel (501) is hinged to the outer wall of the lower housing (2). A connecting block A (502) is fixedly connected to the outer wall of the door panel (501). A connecting block B (504) is fixedly connected to the inner wall of the lower housing (2). A pull rope (503) is wound around the outer walls of the connecting block A (502), the connecting block B (504), and the connecting block C (505).

9. The construction waste crushing device for construction use according to claim 8, characterized in that: The waste bin (507) is slidably connected to the inner wall of the lower housing (2). The two ends of the pull rope (503) are respectively fixedly connected to the outer walls of the connecting block A (502) and the connecting block C (505). The two ends of the hinge rod (506) are respectively hinged to the outer walls of the waste bin (507) and the connecting block C (505). The connecting block C (505) is slidably connected to the inner wall of the lower housing (2).

10. A method for using a construction waste crushing device for construction, which is applied to a construction waste crushing device for construction as described in any one of claims 1-9, and is characterized in that: It includes the following steps: S1. Insert the air duct (7) into the bracket (6). The air duct (7) presses the wedge block (402). After being completely inserted, the elastic force of the elastic member B (401) drives the wedge block (402) to pop out and be snap-connected to the slot (405) for fixation, ensuring communication with the air pump. S2. Put construction waste into the upper housing (1) from the feed port. Start the drive module (9) to drive the crushing roller (8) to rotate and crush the waste. At the same time, drive the turntable (301) and the rotating rod (302) to rotate. Drive the inclined block (304) to reciprocate up and down through the connecting rod (303). The inclined block (304) drives the moving block (307) and the screen (308) to reciprocate horizontally through the sliding rod (305) to evenly screen the crushed waste. The crushed waste falls into the waste bin (507) through the screen (308), and the larger waste that is not completely crushed remains on the screen (308). The air pump discharges dust through the air duct (7). S3. After the crushing is completed, the baffle (309) can be opened, press the square block (312) to take out the screen (308), pour the remaining waste back into the upper housing (1) for further crushing, and then reinstall the screen (308) by snap-connecting the square block (312) to the groove (313). Start the drive module (9) to ensure that the waste is completely crushed. S4. After the crushing is completed, the door panel (501) can be opened. Pull the connecting block C (505) through the pull rope (503) to drive the hinge rod (506) to flip and pull out the waste bin (507) to clean the waste. After cleaning, push the waste bin (507) back, and at the same time, the door panel (501) is automatically closed. S5. Push up the convex block on the outer wall of the trapezoidal block (404) to disengage the wedge block (402) from the slot (405), remove the air duct (7) for cleaning and maintenance, and reinstall it according to the installation steps after cleaning.

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