CN114950621B

CN114950621B - Building waste environmental protection processing apparatus for civil engineering

Info

Publication number: CN114950621B
Application number: CN202111526388.5A
Authority: CN
Inventors: 陈忠源; 王少华; 陈小婷; 陈伟杰
Original assignee: Fuzhou College of Foreign Studies and Trade
Current assignee: Fuzhou College of Foreign Studies and Trade
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2023-07-14
Anticipated expiration: 2041-12-14
Also published as: CN114950621A

Abstract

The invention discloses an environment-friendly construction waste treatment device for civil engineering, which comprises a mounting base, wherein the front side and the rear side of the upper surface of the mounting base are fixedly connected with spring telescopic rods, the top ends of the spring telescopic rods are fixedly connected with supporting plates, the upper surface of each supporting plate is fixedly connected with a crushing box body, the back surface of each crushing box body is fixedly connected with a driving motor, the output end of each driving motor penetrates through the outer wall of each crushing box body and is fixedly connected with a crushing roller I, so that the crushing rollers drive a gear I to rotate clockwise, further drive a gear II meshed with the gear I to rotate anticlockwise, and the gear II drives the crushing rollers II to rotate anticlockwise due to the fact that the crushing rollers II are fixedly connected with the gear II coaxially.

Description

Building waste environmental protection processing apparatus for civil engineering

Technical Field

The invention relates to the technical field of construction waste treatment, in particular to an environment-friendly construction waste treatment device for civil engineering.

Background

In the construction of dismantling and refitting a building, a large amount of waste materials are discarded, and the waste materials are directly discarded, so that resources are wasted, and the environment is polluted. The existing waste materials of building construction are used for carrying away garbage trucks when being subjected to environment-friendly treatment, reasonable application is not achieved, resources are wasted, and therefore the crushing, recycling and reutilization of the building waste materials are very important.

However, when the crushing treatment device in the prior art is used for crushing, most of the crushing treatment devices adopt a single crushing roller for extrusion or a crushing arm for direct crushing for crushing, so that the crushing effect is poor.

Disclosure of Invention

The invention aims to provide an environment-friendly construction waste treatment device for civil engineering, which has the advantages of good crushing effect, intermittent feeding, blockage prevention and reduction of floating dust generated during crushing, and solves the problems in the prior art.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a building waste environmental protection processing apparatus for civil engineering, includes the installation base, the equal fixedly connected with spring telescopic link in both sides around the upper surface of installation base, the top fixedly connected with backup pad of spring telescopic link, the last fixedly connected with crushing roller second of backup pad, the back fixedly connected with driving motor of crushing box, driving motor's output runs through the outer wall of crushing box and fixedly connected with crushing roller first, the one end that driving motor was kept away from to crushing roller first rotates with the inner wall of crushing box to be connected, the front dead axle of crushing box rotates and is connected with gear first, gear first and crushing roller first coaxial fixedly connected, the front dead axle of crushing box rotates and is connected with the gear second with the meshing of gear first, the inner wall dead axle of crushing box rotates and is connected with crushing roller second with crushing roller first looks adaptation, gear second and crushing roller second coaxial fixedly connected with, the equal fixedly connected with bracing piece in upper surface left and right sides of installation base, two sets of fixedly connected with is used for throwing in the casing of building waste between the bracing piece, the inner wall dead axle of casing is connected with the pivot of three feed plate is connected with the pivot of three, the pivot of the waste material is used for the ejection of compact is connected with the pivot of three.

Preferably, the front eccentric positions of the first gear and the second gear are movably connected with movable plates, a connecting plate is movably connected between the bottom ends of the two groups of movable plates, a rack is fixedly connected to the bottom of the connecting plate, and a piston plate is fixedly connected to the bottom end of the rack.

Preferably, the front of smashing the box body is provided with a through hole, the inner wall dead axle of the through hole is rotationally connected with a first rotating shaft, the front end of the first rotating shaft is fixedly connected with a third gear which is meshed with the rack, and the rear end of the first rotating shaft extends to the inside of the smashing box body and is fixedly connected with a convex plate.

Preferably, the inner wall dead axle of smashing the box rotates and is connected with the steering plate, the spout has been seted up to the outer wall of steering plate, the one end fixedly connected with slider that pivot one was kept away from to the flange, and the inner wall sliding connection of this slider and spout, the bottom fixedly connected with of steering plate is used for stirring the dredging board of building waste.

Preferably, the upper surface fixedly connected with pumping tank body of backup pad, piston board is at the inner wall sliding connection of pumping tank body, the left side outer wall fixedly connected with drinking-water pipe of pumping tank body, the one end and the inside intercommunication of pumping tank body of drinking-water pipe, the other end external water storage mechanism that has of drinking-water pipe, the right side outer wall fixedly connected with drain pipe of pumping tank body, the one end and the inside intercommunication of pumping tank body of drain pipe, the other end of drain pipe extends to the feed inlet position of smashing the box.

Preferably, the inner wall of the water pumping pipe is provided with a first check valve for supplying water to the inside of the water pumping tank body, and the inner wall of the water draining pipe is provided with a second check valve for draining water in the water pumping tank body.

Preferably, the front fixedly connected with locating plate of feeding casing, the spacing groove has been seted up to the one end that the feeding casing was kept away from to the locating plate, the inner wall dead axle in spacing groove rotates and is connected with the pivot two, the rear end fixedly connected with gear four of spacing groove, the transmission is connected with the belt between the front end of pivot two and the front end of pivot three.

Preferably, the gear IV is not in meshed connection with the rack, and the gear IV can be in meshed connection with the gear III when the crushing box body is less loaded.

Compared with the prior art, the invention has the following beneficial effects:

1. the crushing device is characterized in that the construction waste to be crushed is thrown into the feeding shell, the driving motor is started, the crushing roller I is driven to rotate clockwise through the driving motor, the gear I is fixedly connected with the crushing roller through a shaft, the crushing roller I is driven to rotate clockwise, the gear II meshed with the gear I is driven to rotate anticlockwise, the crushing roller II is driven to rotate anticlockwise through the shaft fixedly connected with the gear II, the crushing roller I rotates clockwise at the moment, the crushing roller II rotates anticlockwise, the construction waste thrown into the crushing box is crushed, and compared with a traditional extrusion method or a crushing arm, the crushing is carried out through direct crushing, and the crushing effect is good.

2. Through gear one and gear two rotation, can drive the fly leaf that is in gear one and gear two eccentric positions and periodically reciprocate, and then promote connecting plate and rack periodic up-and-down movement, and then drive the gear three alternation corotation and the reversal of being connected with the rack meshing, and then drive pivot one and convex plate alternation corotation and reversal, and then drive the slider of pivot one outer wall and slide at the inner wall of spout, and then drive the steering plate and use the top to take the top to control the deflection as the axle center, and then drive the sparse baffle of gear two bottoms and control the deflection, can stir the construction waste after the breakage in succession for construction waste upper surface is in the tiling state, prevents that the construction waste of whereabouts from piling up, causes crushing box inside jam, inconvenient unloading's phenomenon.

3. When the internal load of smashing the box is less, because the elastic potential energy effect of spring telescopic link, can support backup pad and smashing the box and keep at certain height, because pivot one with smash the box fixed axis and rotate and be connected, therefore the height of pivot one and gear three changes along with smashing the high variation of box, and because the height of feeding casing is the unchangeable, therefore the height of locating plate and pivot two also remains unchanged, the outer wall of gear three can be connected with the outer wall meshing of gear four this moment, consequently when gear three rotates, can drive gear four synchro rotation, and then drive the pivot two and rotate, can drive the synchronous rotation of pivot three through the transmission effect of belt, and then drive the delivery sheet and rotate, can transmit the inside building waste of feed casing to smashing the open position of box through the delivery sheet rotation, realize automatic blanking automatic crushing function.

4. When the inside jam that appears of crushing box, the inside construction waste of crushing box piles up gradually this moment for the inside weight of crushing box increases gradually, when the gravitational potential energy of crushing box is greater than the elastic potential energy of spring telescopic link, can compress the spring telescopic link, and then drive backup pad and crushing box and move downwards in step, gear three gradually breaks away from with gear four this moment, gear four and pivot two are not rotating this moment, belt and pivot three no longer rotate simultaneously, consequently the delivery sheet no longer with the inside waste material of feed casing import to the inside of crushing box, but crushing roller one and crushing roller two still are normal function, until the inside construction waste material of crushing box smashes gradually and discharges the back, the weight of crushing box reduces, gear three can mesh with gear four again this moment, make the delivery sheet rotate, with the inside waste material of feed casing import to the inside of crushing box, realize intelligent pay-off's function.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic view of the back structure of the present invention;

FIG. 3 is a schematic view of the crushing box structure of the present invention;

FIG. 4 is a schematic view of a crushing roller according to the present invention;

FIG. 5 is a schematic view of a structure of a baffle according to the present invention;

FIG. 6 is a schematic view of the feed housing of the present invention;

FIG. 7 is a schematic diagram of a limiting groove structure according to the present invention;

FIG. 8 is a schematic diagram of a gear wheel of the present invention;

FIG. 9 is a schematic diagram of a feeder plate structure according to the present invention;

fig. 10 is a schematic view of the structure of the pumping tank of the present invention.

In the figure: 1. a mounting base; 2. a spring telescoping rod; 3. a support plate; 4. crushing a box body; 5. a support rod; 6. a feed housing; 7. a driving motor; 8. crushing a first roller; 9. a first gear; 10. a second gear; 11. a crushing roller II; 12. a movable plate; 13. a connecting plate; 14. a rack; 15. a piston plate; 16. a third gear; 17. a first rotating shaft; 18. a convex plate; 19. a steering plate; 20. a chute; 21. a dredging plate; 22. a positioning plate; 23. a limit groove; 24. a second rotating shaft; 25. a fourth gear; 26. a belt; 27. a third rotating shaft; 28. a feeding plate; 29. a pumping tank body; 30. a water pumping pipe; 31. a first check valve; 32. a drain pipe; 33. and a second check valve.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Embodiment one:

as shown in fig. 1-4, an environmental protection treatment device for construction waste for civil engineering comprises a mounting base 1, the front and rear sides of the upper surface of the mounting base 1 are fixedly connected with a spring telescopic rod 2, the top end of the spring telescopic rod 2 is fixedly connected with a supporting plate 3, the upper surface of the supporting plate 3 is fixedly connected with a crushing box 4, the back of the crushing box 4 is fixedly connected with a driving motor 7, the output end of the driving motor 7 penetrates through the outer wall of the crushing box 4 and is fixedly connected with a crushing roller I8, one end of the crushing roller I8, far away from the driving motor 7, is rotationally connected with the inner wall of the crushing box 4, the front fixed shaft of the crushing box 4 is rotationally connected with a gear I9, the gear I9 is fixedly connected with a gear II 10 meshed with the gear I9, the inner wall fixed shaft of the crushing box 4 is rotationally connected with a crushing roller II 11 matched with the crushing roller I8, the gear II 10 and the crushing roller II 11 are coaxially fixedly connected, the left and right sides of the upper surface of the mounting base 1 are fixedly connected with a supporting rod 5, the front fixed shaft of the crushing roller I8 is rotationally connected with a gear II, one end far away from the driving motor 7 is rotationally connected with the inner wall of the crushing roller I4, the front fixed shaft of the crushing box 4 is fixedly connected with a rotating shaft 6, the rotating shaft 6 is fixedly connected with a rotating shaft 27 of a waste material discharging control shaft 27, and the waste material is fixedly connected with a rotating shaft 27 of a waste material discharging shaft 27.

The construction waste to be crushed is thrown into the feeding shell 6, the driving motor 7 is started, the crushing roller I8 is driven to rotate clockwise through the driving motor 7, the gear I9 is fixedly connected with the crushing roller I8 in a coaxial mode, so that the crushing roller I8 drives the gear I9 to rotate clockwise, the gear II 10 meshed with the gear I9 is driven to rotate anticlockwise, the crushing roller II 11 is driven to rotate anticlockwise through the gear II 10 due to the fact that the crushing roller II 11 is fixedly connected with the gear II 10 in a coaxial mode, at the moment, the crushing roller I8 rotates clockwise, the crushing roller II 11 rotates anticlockwise, the construction waste thrown into the crushing box 4 is crushed, and compared with a traditional extrusion method or a crushing arm, the crushing effect is good.

Embodiment two:

as shown in fig. 4, on the basis of the first embodiment, further expansion is performed: the front eccentric positions of the first gear 9 and the second gear 10 are respectively and movably connected with a movable plate 12, a connecting plate 13 is movably connected between the bottom ends of the two groups of movable plates 12, a rack 14 is fixedly connected to the bottom of the connecting plate 13, and a piston plate 15 is fixedly connected to the bottom end of the rack 14.

The movable plate 12 at the eccentric position of the first gear 9 and the second gear 10 is driven to periodically move up and down by the rotation of the first gear 9 and the second gear 10, so as to push the connecting plate 13 and the rack 14 to periodically move up and down.

As shown in fig. 5, a through hole is formed in the front surface of the crushing box body 4, a first rotating shaft 17 is fixedly connected to the inner wall of the through hole in a rotating mode, a third gear 16 meshed with the rack 14 is fixedly connected to the front end of the first rotating shaft 17, and the rear end of the first rotating shaft 17 extends into the crushing box body 4 and is fixedly connected with a convex plate 18.

And then drives the third gear 16 meshed with the rack 14 to alternately rotate forward and reverse, and further drives the first rotating shaft 17 and the convex plate 18 to alternately rotate forward and reverse.

As shown in fig. 5, the inner wall of the crushing box 4 is fixedly connected with a steering plate 19 in a rotating manner, the outer wall of the steering plate 19 is provided with a sliding groove 20, one end, away from the first rotating shaft 17, of the convex plate 18 is fixedly connected with a sliding block, the sliding block is in sliding connection with the inner wall of the sliding groove 20, and the bottom end of the steering plate 19 is fixedly connected with a dredging plate 21 for stirring construction waste.

The sliding block driving the outer wall of the first rotating shaft 17 slides on the inner wall of the sliding groove 20, and then drives the steering plate 19 to deflect left and right by taking the top as the axis, and further drives the guiding plate 21 at the bottom end of the second gear 10 to deflect left and right, so that the broken construction waste can be continuously stirred, the upper surface of the construction waste is in a flat state, falling construction waste is prevented from being accumulated, the inside of the crushing box body 4 is blocked, and the phenomenon of inconvenient blanking is avoided.

Embodiment III:

as shown in fig. 10, on the basis of the second embodiment, further expansion is performed: the upper surface fixedly connected with pumping box 29 of backup pad 3, piston plate 15 is at pumping box 29's inner wall sliding connection, pumping box 29's left side outer wall fixedly connected with drinking-water pipe 30, and pumping box 29's inside intercommunication is followed to drinking-water pipe 30's one end, and pumping box 29's right side outer wall fixedly connected with drain pipe 32 of external water storage mechanism of the other end, drain pipe 32's one end and pumping box 29 inside intercommunication, and drain pipe 32's the other end extends to crushing box 4's feed inlet position.

When crushing the construction waste materials by the crushing roller I8 and the crushing roller II 11, a large amount of floating dust is easy to appear, so when the rack 14 moves downwards, the piston plate 15 is driven to slide downwards on the inner wall of the pumping box 29, so that the water flow inside the pumping box 29 is compressed, the water pressure is increased at the moment, the water flow inside the pumping box 29 is led into the drain pipe 32 through the check valve II 33, the crushing roller I8 and the crushing roller II 11 are sprayed to the crushing position of the construction waste materials, the floating dust generated by crushing the construction waste materials is reduced, and the surfaces of the crushing roller I8 and the crushing roller II 11 can be cleaned simultaneously, so that the phenomenon of blockage is prevented.

As shown in fig. 10, the inner wall of the water suction pipe 30 is provided with a first check valve 31 for supplying water into the water suction tank 29, and the inner wall of the water discharge pipe 32 is provided with a second check valve 33 for discharging water from the water suction tank 29.

When the rack 14 moves upwards, the piston plate 15 is driven to move upwards synchronously, the inside of the pumping tank 29 is in a negative pressure state, water flow in a water storage mechanism externally connected with the pumping pipe 30 enters the pumping pipe 30, and enters the inside of the pumping tank 29 through the one-way valve 31, so that an automatic water supplementing function is realized, and continuous operation of floating dust removal and cleaning functions is ensured.

Embodiment four:

as shown in fig. 7-8, on the basis of the third embodiment, further expansion is performed: the front fixedly connected with locating plate 22 of feeding casing 6, locating plate 22 has been seted up spacing groove 23 in the one end of keeping away from feeding casing 6, and the inner wall dead axle in spacing groove 23 rotates and is connected with pivot two 24, and the rear end fixedly connected with gear four 25 of spacing groove 23, the transmission is connected with belt 26 between the front end of pivot two 24 and the front end of pivot three 27.

Preferably, the fourth gear 25 is not engaged with the rack 14, and the fourth gear 25 can be engaged with the third gear 16 when the crushing box 4 is less loaded.

When the internal load of the crushing box body 4 is less, the supporting plate 3 and the crushing box body 4 can be supported to be kept at a certain height due to the action of elastic potential energy of the spring telescopic rod 2, the first rotating shaft 17 is connected with the fixed shaft of the crushing box body 4 in a rotating way, so that the heights of the first rotating shaft 17 and the third gear 16 change along with the change of the height of the crushing box body 4, and the heights of the positioning plate 22 and the second rotating shaft 24 also remain unchanged due to the fact that the height of the feeding shell 6 remains unchanged, at the moment, the outer wall of the third gear 16 can be meshed with the outer wall of the fourth gear 25, and therefore when the third gear 16 rotates, the fourth gear 25 is driven to synchronously rotate, the second rotating shaft 24 is driven to rotate, the third rotating shaft 27 is driven to synchronously rotate through the transmission action of the belt 26, and the feeding plate 28 is driven to rotate, so that building waste inside the feeding shell 6 can be transmitted to the opening position of the crushing box body 4 through the rotation of the feeding plate 28, and the automatic blanking and crushing functions are realized.

The working principle of the scheme is as follows: when the environmental protection treatment device for construction waste for civil engineering is used, construction waste to be crushed is put into a feed shell 6, a driving motor 7 is started, a crushing roller I8 is driven to rotate clockwise through the driving motor 7, and as a gear I9 is coaxially and fixedly connected with the crushing roller I8, the crushing roller I8 drives the gear I9 to rotate clockwise, and further drives a gear II 10 in meshed connection with the gear I9 to rotate anticlockwise, and as a crushing roller II 11 is coaxially and fixedly connected with the gear II 10, the gear II 10 drives the crushing roller II 11 to rotate anticlockwise, at the moment, the crushing roller I8 rotates clockwise, the crushing roller II 11 rotates anticlockwise, the construction waste put into the crushing box 4 is crushed, and compared with a traditional extrusion method or a crushing arm, the crushing effect is better;

the first gear 9 and the second gear 10 rotate to drive the movable plate 12 at the eccentric positions of the first gear 9 and the second gear 10 to periodically move up and down, so as to drive the connecting plate 13 and the rack 14 to periodically move up and down, further drive the third gear 16 meshed with the rack 14 to alternately rotate forward and reverse, further drive the first rotating shaft 17 and the convex plate 18 to alternately rotate forward and reverse, further drive the sliding block on the outer wall of the first rotating shaft 17 to slide on the inner wall of the sliding groove 20, further drive the steering plate 19 to deflect left and right with the top as the axis, further drive the dredging plate 21 at the bottom end of the second gear 10 to deflect left and right, and continuously stir the crushed construction waste, so that the upper surface of the construction waste is in a tiled state, and the phenomenon that the inner part of the crushing box 4 is blocked and inconvenient to discharge is prevented;

when the internal load of the crushing box body 4 is less, the supporting plate 3 and the crushing box body 4 are kept at a certain height under the action of elastic potential energy of the spring telescopic rod 2, the first rotating shaft 17 is connected with the fixed shaft of the crushing box body 4 in a rotating way, so that the heights of the first rotating shaft 17 and the third gear 16 change along with the change of the height of the crushing box body 4, and the heights of the positioning plate 22 and the second rotating shaft 24 also remain unchanged because the heights of the feeding shell 6 remain unchanged, at the moment, the outer wall of the third gear 16 can be meshed with the outer wall of the fourth gear 25, so that when the third gear 16 rotates, the fourth gear 25 is driven to synchronously rotate, the second rotating shaft 24 is driven to rotate, the third rotating shaft 27 is driven to synchronously rotate under the transmission of the belt 26, and the feeding plate 28 is driven to rotate, so that the construction waste in the feeding shell 6 can be transmitted to the opening position of the crushing box body 4 through the rotation of the feeding plate 28, and the automatic blanking and automatic crushing functions are realized;

when the crushing box body 4 is blocked, building waste in the crushing box body 4 is gradually piled up, so that the weight in the crushing box body 4 is gradually increased, when the gravitational potential energy of the crushing box body 4 is larger than the elastic potential energy of the spring telescopic rod 2, the spring telescopic rod 2 is compressed, the supporting plate 3 and the crushing box body 4 are driven to synchronously move downwards, the gear III 16 is gradually separated from the gear IV 25, the gear IV 25 and the rotating shaft II 24 are not rotated, the belt 26 and the rotating shaft III 27 are not rotated any more, the feeding plate 28 does not guide waste in the feeding shell 6 into the crushing box body 4 any more, the crushing roller I8 and the crushing roller II 11 still perform normal functions until the building waste in the crushing box body 4 is gradually crushed and discharged, the weight of the crushing box body 4 is reduced, the gear III 16 is meshed with the gear IV 25 again, the feeding plate 28 rotates, and the waste in the feeding shell 6 is guided into the crushing box body 4, and the intelligent feeding function is realized;

when the crushing roller I8 and the crushing roller II 11 crush the construction waste, a large amount of floating dust is easy to appear, so when the rack 14 moves downwards, the piston plate 15 is driven to slide downwards on the inner wall of the pumping box 29, so as to compress the water flow in the pumping box 29, at the moment, the water pressure is increased, the water flow in the pumping box 29 is led into the drain pipe 32 through the check valve II 33 and is sprayed at the crushing position of the crushing roller I8 and the crushing roller II 11, the floating dust generated by crushing the construction waste is reduced, and the surfaces of the crushing roller I8 and the crushing roller II 11 can be cleaned to prevent the blockage phenomenon;

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a civil engineering is with construction waste environmental protection processing apparatus, includes mounting base (1), its characterized in that: the utility model discloses a waste material treatment device, including installation base (1), fixed surface, grinding box (4), gear (9) are connected with in front and back both sides of the upper surface of installation base (1) all fixedly connected with spring telescopic link (2), the fixed surface of the upper surface of backup pad (3) is connected with grinding box (4), the back fixedly connected with driving motor (7) of grinding box (4), the output of driving motor (7) runs through the outer wall of grinding box (4) and fixedly connected with grinding roller (8), one end that grinding roller (8) kept away from driving motor (7) is connected with the inner wall rotation of grinding box (4), the front dead axle rotation of grinding box (4) is connected with gear (9), gear (9) and grinding roller (8) coaxial fixedly connected with, the front dead axle rotation of grinding box (4) is connected with two gears (10) with gear (9) meshing, the inner wall dead axle rotation of grinding box (4) is connected with grinding roller (11) with grinding roller (8) looks adaptation, two gears (10) and two are connected with two and are connected with two on the fixed surface of the support rod (5) on the fixed connection between two side of the waste material treatment device, two fixed surface of the installation base (5) are connected with two on the side of the waste material treatment device (5), the inner wall of the feeding shell (6) is fixedly connected with a rotating shaft III (27) in a rotating way, and the outer wall of the rotating shaft III (27) is fixedly connected with a feeding plate (28) for controlling the discharging of construction waste;

the front eccentric positions of the first gear (9) and the second gear (10) are respectively and movably connected with a movable plate (12), a connecting plate (13) is movably connected between the bottom ends of the two groups of movable plates (12), a rack (14) is fixedly connected to the bottom of the connecting plate (13), and a piston plate (15) is fixedly connected to the bottom end of the rack (14);

the front of the crushing box body (4) is provided with a through hole, the inner wall of the through hole is fixedly connected with a first rotating shaft (17) in a rotating way, the front end of the first rotating shaft (17) is fixedly connected with a third gear (16) which is meshed with the rack (14), and the rear end of the first rotating shaft (17) extends to the inside of the crushing box body (4) and is fixedly connected with a convex plate (18);

the inner wall fixed shaft of the crushing box body (4) is rotationally connected with a steering plate (19), a chute (20) is formed in the outer wall of the steering plate (19), one end, far away from the first rotating shaft (17), of the convex plate (18) is fixedly connected with a sliding block, the sliding block is in sliding connection with the inner wall of the chute (20), and the bottom end of the steering plate (19) is fixedly connected with a dredging plate (21) for stirring construction waste;

the upper surface of the supporting plate (3) is fixedly connected with a pumping tank body (29), the piston plate (15) is in sliding connection with the inner wall of the pumping tank body (29), the left outer wall of the pumping tank body (29) is fixedly connected with a pumping pipe (30), one end of the pumping pipe (30) is communicated with the inside of the pumping tank body (29), the other end of the pumping pipe (30) is externally connected with a water storage mechanism, the right outer wall of the pumping tank body (29) is fixedly connected with a drain pipe (32), one end of the drain pipe (32) is communicated with the inside of the pumping tank body (29), and the other end of the drain pipe (32) extends to the position of a feed inlet of the crushing tank body (4);

the front of the feeding shell (6) is fixedly connected with a positioning plate (22), one end of the positioning plate (22) far away from the feeding shell (6) is provided with a limiting groove (23), the inner wall of the limiting groove (23) is fixedly connected with a second rotating shaft (24) in a rotating way, the rear end of the limiting groove (23) is fixedly connected with a fourth gear (25), and a belt (26) is connected between the front end of the second rotating shaft (24) and the front end of the third rotating shaft (27) in a transmission way;

the fourth gear (25) is not in meshed connection with the rack (14), and when the crushing box body (4) is less in load, the fourth gear (25) can be in meshed connection with the third gear (16).

2. The construction waste environmental protection treatment device for civil engineering according to claim 1, wherein: the inner wall of the water pumping pipe (30) is provided with a first check valve (31) for supplying water to the inside of the water pumping tank body (29), and the inner wall of the water discharging pipe (32) is provided with a second check valve (33) for discharging water in the water pumping tank body (29).