Environment-friendly dust removal equipment for building construction

Abstract

The present application relates to dust falling device technical field, specifically said is an environmental protection dust removal equipment for building construction, including two groups of parallelly arranged spray pipe, the lower part of spray pipe is connected with dust screen, the lower end of dust screen is connected with winding shaft, winding shaft is located in water return box, both ends of winding shaft pass through water return box and are rotationally connected with water return box, the side of two groups of spray pipe close to each other is provided with the nozzle that sprays downwardly and obliquely, the upper part between two groups of spray pipe is provided with water inlet pipe, both ends of water inlet pipe are communicated with both ends of spray pipe through connecting box, water supply pipe passes through water return box, water supply support is connected between water return box and water inlet pipe, water inlet pipe is communicated with water supply pipe through water supply support. The present application can lift water inlet pipe and spray pipe, make dust screen unfold, can adjust the height of dust screen according to actual need, and according to the length requirement of dust screen, the splicing of multiple water supply pipes is carried out, so as to increase the length of dust screen, satisfy actual demand.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dust falling equipment, and particularly relates to an environment-friendly dust falling equipment for building construction. BACKGROUND

[0002] In the process of building construction, a large amount of dust is generated in the links of earth excavation, material transportation and concrete mixing. According to statistics, building dust accounts for more than 30% of urban dust pollution sources.

[0003] The traditional water spraying dust falling method excessively depends on manual operation or fixed spray heads, has large water consumption and limited coverage, and the effect is significantly reduced in windy weather. The dust screen covering method can only block dust and cannot actively fall dust, and the screen surface is easily blocked and needs to be cleaned frequently. The fog gun machine dust falling has the problems of large equipment size, inconvenient movement, inability to form a fully enclosed dust falling space and high energy consumption, and has large use limitations.

[0004] Therefore, it is necessary to design an environment-friendly dust falling equipment for building construction to improve the dust falling problem of the building construction site. SUMMARY

[0005] In view of the problems in the prior art, the present application provides an environment-friendly dust falling equipment for building construction.

[0006] The technical scheme adopted by the present application to solve the technical problem is an environment-friendly dust falling equipment for building construction, comprising two groups of parallelly arranged spray pipes, the lower parts of the spray pipes are connected with dust screens, the lower ends of the dust screens are connected with winding shafts, the winding shafts are located in water return boxes, the two ends of the winding shafts pass through the water return boxes and are rotationally connected with the water return boxes, the side close to each other of the two groups of spray pipes is provided with a nozzle for downwardly spraying, the upper part between the two groups of spray pipes is provided with a water inlet pipe, the two ends of the water inlet pipe are communicated with the two ends of the spray pipes through connecting boxes, a water supply pipe passes through the water return box, a water supply support is connected between the water return box and the water inlet pipe, and the water inlet pipe is communicated with the water supply pipe through the water supply support.

[0007] Preferably, the water supply support comprises two groups of sleeve shells sleeved on the water inlet pipe, the two ends of the sleeve shells are sealingly and slidingly connected with the water inlet pipe through sealing sliding rings, the lower part of the sleeve shell is hingedly connected with a hollow pipe through a first hinged seat, the lower end of the hollow pipe is hingedly installed in a second hinged seat on the upper part of the water return box, a water supply hose is arranged in the hollow pipe, the upper end of the water supply hose passes through the first hinged seat and is communicated with the sleeve shell, and the lower end of the water supply hose passes through the second hinged seat and the water return box and is communicated with the water supply pipe.

[0008] A plurality of groups of water inlet holes are linearly distributed on the side surface of the water inlet pipe, the distance between the two adjacent groups of water inlet holes gradually decreases from the middle part to the two ends of the water inlet pipe, and a one-way water inlet element is arranged in each water inlet hole.

[0009] Preferably, the top edge of the water return box is connected with the protective frame, the upper part of the water return box is communicated with the water return hole, and the side of the water return box is communicated with the drain pipe.

[0010] Preferably, the two ends of the winding shaft are connected with the outer wall of the water return box through the coil spring, the lower sides of the two groups of dustproof nets are provided with clamping plates which are inclined to the dustproof nets, the lower ends of the clamping plates are hingedly connected with supporting plates, the two ends of the supporting plates are connected with the protective frame, the expansion pads are arranged between the clamping plates and the supporting plates, the outer side of the protective frame is fixedly connected with the communication box, and the expansion pads and the water supply pipe are communicated with the communication box through pipelines.

[0011] Preferably, the lower sides of the two groups of dustproof nets which are away from each other are provided with roller brushes, the two ends of the roller brushes pass through the protective frame and are rotationally connected with the protective frame, the two ends of the winding shaft are connected with the first pulley through the one-way bearing, the two ends of the roller brush are connected with the second pulley, and the first pulley and the second pulley are driven through the transmission belt.

[0012] Preferably, the lower sides of the two groups of dustproof nets are provided with guide rods which are fixed in the water return box, and the two groups of dustproof nets pass through the guide rods and extend outward and are connected to the upper part of the winding shaft.

[0013] Preferably, the upper part of the protective frame is provided with an arc-shaped slot which corresponds to the spraying pipe.

[0014] Preferably, the first hinged seat and the second hinged seat are damping hinged seats.

[0015] Preferably, the two ends of the water supply pipe are connected with quick flanges or plug-in joints.

[0016] The beneficial effects of the present application are as follows:

[0017] (1) The environmental protection dust removal equipment for building construction can lift the water inlet pipe upward, lift the spraying pipe, and expand the dustproof net, the height of the dustproof net can be adjusted according to actual needs, and a plurality of water supply pipes can be spliced according to the length requirement of the dustproof net, so that the length of the dustproof net is increased, and the positions of the plurality of environmental protection dust removal equipment for building construction can be adjusted, and the equipment is arranged around the construction area, so that the dust removal treatment effect is further improved.

[0018] (2) The environmental protection dust removal equipment for building construction can increase the number of water inlet holes corresponding to the sleeve shell after the sleeve shell moves to the two ends of the water inlet pipe, so that the water inlet amount of the water inlet pipe is increased; when the height of the dustproof net is increased, the water inlet amount of the water inlet pipe is increased, the water spraying amount of the spraying pipe is increased, so that the cleaning requirement of the dustproof net and the dust removal requirement of the larger dust removal space are ensured.

[0019] (3) The environmental protection dust removal equipment for building construction described in this invention, after the water supply pipe is connected to the water supply, the water enters the expansion pad through the connecting box. The expansion pad can be driven to expand by the water supply pressure, and push the card plate to move to the side of the dustproof net. The card plates on both sides of the dustproof net can move towards the dustproof net, which can lock the dustproof net and prevent the coil spring from pulling the dustproof net downward.

[0020] (4) The environmental protection dust removal equipment for construction described in this invention, when the winding shaft winds up the dustproof net, the dustproof net moves down, and at the same time the first pulley drives the second pulley to rotate through the one-way bearing, thereby driving the roller brush to rotate, cleaning the dust and other impurities attached to the outer side of the dustproof net to the outside, ensuring the cleaning effect. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is an isometric view of the present invention;

[0023] Figure 2 This is a partial cross-sectional isometric view of the present invention;

[0024] Figure 3 This is an isometric view of the folded version of the present invention;

[0025] Figure 4 for Figure 1 Enlarged view of region A;

[0026] Figure 5 for Figure 2 Enlarged view of region B;

[0027] Figure 6 for Figure 2 Enlarged view of region C;

[0028] Figure 7 This is an isometric drawing of two sets of environmental dust removal equipment used in construction.

[0029] In the diagram: 1. Spray pipe; 2. Dustproof net; 3. Rewinding shaft; 4. Water return box; 5. Nozzle; 6. Water inlet pipe; 7. Connecting box; 8. Water supply pipe; 9. Housing; 10. Sealing slip ring; 11. First hinge seat; 12. Hollow tube; 13. Second hinge seat; 14. Water supply hose; 15. Water inlet hole; 16. Protective frame; 17. Water return hole; 18. Drain pipe; 19. Clamping plate; 20. Support plate; 21. Expansion pad; 22. Connecting box; 23. Roller brush; 24. First pulley; 25. Second pulley; 26. Drive belt; 27. Guide rod; 28. Arc-shaped slot; 29. ​​Coil spring. Detailed Implementation

[0030] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0031] As one embodiment of the present invention, such as Figures 1-7 As shown, the environmental protection dust removal equipment for construction work according to the present invention includes two sets of parallel spray pipes 1. The lower part of each spray pipe 1 is connected to a dustproof net 2, and the lower end of each dustproof net 2 is connected to a winding shaft 3. The winding shaft 3 is located inside a return water box 4. Both ends of the winding shaft 3 pass through the return water box 4 and are rotatably connected to the return water box 4. An inclined downward spray nozzle 5 is provided on the side of the two sets of spray pipes 1 that is close to each other. A water inlet pipe 6 is provided above the two sets of spray pipes 1. Both ends of the water inlet pipe 6 are connected to the two ends of the spray pipe 1 through a connecting box 7. A water supply pipe 8 passes through the return water box 4. A water supply bracket is connected between the return water box 4 and the water inlet pipe 6. The water inlet pipe 6 is connected to the water supply pipe 8 through the water supply bracket.

[0032] When in use, first lift the water inlet pipe 6 upwards, and at the same time lift the spray pipe 1 to unfold the dust net 2. The height of the dust net 2 can be adjusted according to actual needs, and multiple sets of water supply pipes 8 can be spliced ​​according to the length requirements of the dust net 2 to increase the length of the dust net 2. The positions of multiple sets of environmental protection dust removal equipment for construction can also be adjusted and set up around the construction area to further improve the dust reduction effect.

[0033] After the water supply pipe 8 is connected to the water supply system, the water in the water supply pipe 8 enters the water inlet pipe 6 through the water supply bracket, and then flows into the two sets of spray pipes 1 through the connecting box 7. The water is sprayed out by the downward-sloping nozzles 5 to form a water mist, thereby purifying the dust that passes through the dustproof net 2. The dust mixed with the water mist falls quickly, achieving dust suppression. After the water mist is sprayed onto the dustproof net 2, it quickly gathers and flows downward, thereby cleaning the dust attached to the dustproof net 2, further improving the filtration effect of the dustproof net 2, and facilitating the treatment of the cleaned dust.

[0034] To facilitate adjustment of the water inlet effect of the water inlet pipe 6, as an embodiment of the present invention, the water supply bracket includes two sets of sleeves 9 fitted on the water inlet pipe 6. Both ends of the sleeves 9 are slidably connected to the water inlet pipe 6 through sealing slip rings 10. The lower part of the sleeves 9 is hinged to the hollow tube 12 through the first hinge seat 11. The lower end of the hollow tube 12 is hinged to the second hinge seat 13 installed on the upper part of the return water box 4. A water supply hose 14 is provided inside the hollow tube 12. The upper end of the water supply hose 14 passes through the first hinge seat 11 and communicates with the sleeves 9. The lower end of the water supply hose 14 passes through the second hinge seat 13 and the return water box 4 and communicates with the water supply pipe 8.

[0035] Several sets of water inlet holes 15 are linearly distributed on the side of the water inlet pipe 6. The distance between two adjacent sets of water inlet holes 15 gradually decreases from the middle of the water inlet pipe 6 to both ends. Each water inlet hole 15 is equipped with a one-way water inlet component.

[0036] In use, first lift the water inlet pipe 6 upward, adjust the height of the spray pipe 1, and adjust the dust screen 2 to the required height; when lifting the water inlet pipe 6 upward, the hollow pipe 12 swings outward near the middle of the water inlet pipe 6, and as the lifting height of the water inlet pipe 6 increases, the two groups of hollow pipes 12 further swing to the two ends of the water inlet pipe 6; in the process of swinging of the hollow pipe 12, the sleeve 9 will swing to the two ends of the water inlet pipe 6; the sealing sliding ring 10 can ensure the sealing of the two ends of the sleeve 9, so as to prevent the water in the sleeve 9 from overflowing; the water entering the sleeve 9 enters the inside of the water inlet pipe 6 through the water inlet hole 15 provided on the water inlet pipe 6.

[0037] Since the distance between the water inlet holes 15 on the water inlet pipe 6 gradually decreases from the middle to the two ends, the number of water inlet holes 15 corresponding to the sleeve 9 can be increased after the sleeve 9 moves to the two ends of the water inlet pipe 6, thereby increasing the water inlet amount of the water inlet pipe 6; in this way, the water inlet amount of the water inlet pipe 6 can be increased when the height of the dust screen 2 is increased, and the water spraying amount of the spray pipe 1 is increased, thereby ensuring the cleaning requirement of the dust screen 2 and the dust falling requirement of a larger dust falling space.

[0038] It should be noted that the hollow pipe 12 can be in a horizontal state in the initial state, thereby reducing the space occupation of the building construction environment-friendly dust removal equipment, and facilitating subsequent assembly, transportation and storage; the one-way water inlet member used in the present application can be a valve structure of a rubber film or a duckbill valve structure of silica gel.

[0039] In order to facilitate the treatment of the backflow water, as an embodiment of the present application, the top edge of the backwater box 4 is connected with the protective frame 16, the upper part of the backwater box 4 is communicated with the backwater hole 17, and the side surface of the backwater box 4 is communicated with the drain pipe 18.

[0040] In use, the protective frame 16 is fixed on the top of the backwater box 4 to protect the internal structure; after the spray water and dust fall into the backwater box 4, the clean water is recycled to the backwater box 4 through the backwater hole 17, and then is discharged through the drain pipe 18. It should be noted that the drain pipe 18 can be directly connected with a drainage facility, or a plurality of drain pipes 18 can be communicated, thereby facilitating the treatment of the drainage of a plurality of building construction environment-friendly dust removal equipments.

[0041] In order to ensure the stability of the dust screen 2 after being unfolded, as an embodiment of the present application, the two ends of the winding shaft 3 are connected with the outer wall of the backwater box 4 through the coil spring 29, the lower sides of the two groups of dust screens 2 are provided with the clamping plate 19 which is inclined to the dust screen 2, the lower end of the clamping plate 19 is hingedly connected with the supporting plate 20, the two ends of the supporting plate 20 are connected with the protective frame 16, the expansion pad 21 is arranged between the clamping plate 19 and the supporting plate 20, the outer side of the protective frame 16 is fixedly connected with the communication box 22, and the expansion pad 21 and the water supply pipe 8 are respectively communicated with the communication box 22 through pipelines.

[0042] In use, when the dust screen 2 is stretched and unfolded upwards, the winding shaft 3 can be pulled to rotate, and the coil spring 29 is wound; by means of the coil spring 29, the winding shaft 3 can be conveniently pulled to rotate back and the dust screen 2 is wound;

[0043] After the water supply pipe 8 is connected to the water supply, water enters the inflatable pad 21 through the communication box 22, and the inflatable pad 21 is driven to expand by the water supply pressure, and the clamping plate 19 is pushed to move to one side of the dust screen 2; by moving the clamping plate 19 on both sides of the dust screen 2 to the dust screen 2, the dust screen 2 can be clamped to avoid the coil spring 29 pulling the dust screen 2 to move downward, and the clamping plate 19 arranged obliquely ensures that the dust screen 2 can still be pulled upward;

[0044] After use, the water supply of the water supply pipe 8 should be turned off, and after the water pressure in the water supply pipe 8 decreases, the inflatable pad 21 automatically shrinks and drives the clamping plate 19 away from the dust screen 2; then the winding shaft 3 is rotated by the coil spring 29 to wind the dust screen 2.

[0045] In order to facilitate cleaning of the dust screen 2, as an embodiment of the present application, the lower part of the far side of the two groups of dust screens 2 is provided with a roller brush 23, both ends of the roller brush 23 pass through the protective frame 16 and are rotatably connected with the protective frame 16, both ends of the winding shaft 3 are connected with a first pulley 24 through a one-way bearing, both ends of the roller brush 23 are connected with a second pulley 25, and the first pulley 24 and the second pulley 25 are driven by a transmission belt 26.

[0046] In use, when the dust screen 2 is stretched and unfolded upwards, the winding shaft 3 can be pulled to rotate, and at this time the first pulley 24 cannot drive the second pulley 25 to rotate through the one-way bearing, and the roller brush 23 can roll with the upward movement of the dust screen 2, thereby reducing the resistance of the roller brush 23 to the movement of the dust screen 2;

[0047] When the winding shaft 3 winds the dust screen 2, the dust screen 2 moves downward, and at the same time the first pulley 24 drives the second pulley 25 to rotate through the one-way bearing, thereby driving the roller brush 23 to rotate and cleaning the dust and impurities attached to the outer side of the dust screen 2, thereby ensuring the cleaning effect.

[0048] In order to improve the stability of the movement of the dust screen 2, as an embodiment of the present application, the lower part of the two groups of dust screens 2 is provided with a guide rod 27 fixed in the backwater box 4, and the two groups of dust screens 2 pass downward between the two guide rods 27 and extend outward to be connected to the upper part of the winding shaft 3.

[0049] In use, the guide rod 27 can adjust the movement path of the dust screen 2 and reduce the deviation and wrinkle of the dust screen 2 when it is wound, thereby prolonging the service life and ensuring the dust removal effect.

[0050] In order to improve the stability of the spray pipe 1 after moving down, as an embodiment of the present application, the upper part of the protective frame 16 is provided with an arc-shaped slot 28 corresponding to the spray pipe 1.

[0051] In use, the spray pipe 1 after moving down can be clamped in the arc-shaped slot 28, thereby ensuring the stability of the spray pipe 1.

[0052] It should be pointed out that in actual use, rubber pads should be provided on the inner wall of the arc-shaped slot 28, so as to reduce the wear of the spray pipe 1.

[0053] In order to improve the stability of the water supply support, as an embodiment of the present application, the first hinge seat 11 and the second hinge seat 13 are both damping hinge seats.

[0054] In order to facilitate the splicing of the environment-friendly dust removal equipment for building construction, as an embodiment of the present application, the two ends of the water supply pipe 8 are connected with quick flanges or plug-in joints.

[0055] In use, adjacent environment-friendly dust removal equipment for building construction can be quickly connected through the quick flanges or plug-in joints provided at the two ends of the water supply pipe 8, so as to facilitate the combined connection of multiple groups of environment-friendly dust removal equipment for building construction.

[0056] In use, the water return box 4 is first placed around the construction area, and according to the dust falling range requirement, multiple groups of equipment are spliced through the quick flanges or plug-in joints at the two ends of the water supply pipe 8 to form a ring or linear layout; then the water inlet pipe 6 is lifted upward, driving the spray pipe 1 to be lifted synchronously, and the dust screen 2 is stretched and unfolded from the winding shaft 3; the water inlet pipe 6 is adjusted to the required height, at which time the hollow pipe 12 of the water supply support swings to the two ends of the water inlet pipe 6, and the sleeve 9 slides on the water inlet pipe 6 through the sealing slip ring 10.

[0057] After water flows through the water supply pipe 8, the water enters the expansion pad 21 through the communication box 22, the expansion pad 21 expands to push the clamping plate 19, so that the clamping plate 19 clamps the dust screen 2 to prevent the dust screen 2 from retracting; the water enters the hollow pipe 12 through the water supply hose 14, and then flows into the water inlet pipe 6 through the sleeve 9; the water flows into the two groups of spray pipes 1 through the connection box 7, and is sprayed out from the inclined downward nozzles 5 to form water mist, covering the area of the dust screen 2; the water mist mixes with the dust passing through the dust screen 2 to promote the dust to fall quickly, realizing the initial dust falling; the water mist washes the surface of the dust screen 2, gathers the adhered dust and washes it downward, maintaining the filtering efficiency of the dust screen 2; the spray water and the dust fall into the water return box 4, and are connected to the drainage facility or the parallel drainage system of multiple groups of equipment through the side drain pipe 18.

[0058] After the water source of the water supply pipe 8 is disconnected, the water pressure in the inflatable pad 21 is reduced and the inflatable pad 21 is contracted, the clamping plate 19 is loosened, the dust screen 2 is loosened; the winding shaft 3 is automatically rotated under the action of the winding spring 29, and the dust screen 2 is wound downward; during winding, the winding shaft 3 drives the first pulley 24 to rotate through the one-way bearing, and drives the roller brush 23 to rotate through the transmission belt 26; the rotating direction of the roller brush 23 is matched with the moving direction of the dust screen 2, dust attached to the outer side of the dust screen 2 is brushed outward, and cleaning is completed;

[0059] After use, the spray pipe 1 falls into the arc-shaped slot 28 on the upper part of the protective frame 16, the rubber pad in the slot reduces abrasion, and the stability of the spray pipe 1 is ensured; the hollow pipe 12 of the water supply support is reset to a horizontal state, the overall occupied space of the equipment is reduced, and the equipment is convenient to carry and store.

[0060] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly dust removal device for construction work, characterized in that, The utility model provides a dustproof water spraying device, including two groups of parallelly arranged spray pipe (1), the lower part of spray pipe (1) is connected with dust screen (2), the lower end of dust screen (2) is connected with winding shaft (3), winding shaft (3) is located in the return water box (4), and both ends of winding shaft (3) pass through return water box (4) and are rotatably connected with return water box (4), and the side of two groups of spray pipe (1) is provided with the nozzle (5) of downwardly spraying and inclining, the upper portion between two groups of spray pipe (1) is provided with inlet pipe (6), both ends of inlet pipe (6) are communicated with both ends of spray pipe (1) through connecting box (7), and water supply pipe (8) passes through return water box (4), and water supply support is connected between return water box (4) and inlet pipe (6), and inlet pipe (6) is communicated with water supply pipe (8) through water supply support, water supply support includes two groups of sleeve shell (9) that are set on inlet pipe (6), both ends of sleeve shell (9) are sealingly and slidably connected with inlet pipe (6) through sealing slip ring (10), and the lower part of sleeve shell (9) is hingedly connected with hollow pipe (12) through first hinged seat (11), the lower end of hollow pipe (12) is hingedly installed on the upper portion of second hinged seat (13) of return water box (4), water supply hose (14) is arranged in hollow pipe (12), the upper end of water supply hose (14) passes through first hinged seat (11) and is communicated with sleeve shell (9), and the lower end of water supply hose (14) passes through second hinged seat (13), return water box (4) and is communicated with water supply pipe (8), a plurality of groups of water inlet holes (15) are linearly distributed on the side of inlet pipe (6), the interval between adjacent two groups of water inlet holes (15) gradually reduces from the middle portion of inlet pipe (6) to both ends, and one-way water inlet element is arranged in water inlet hole (15).

2. The environment-friendly dust removal equipment for building construction according to claim 1, characterized in that, The top edge of return water box (4) is connected with protection frame (16), the upper portion of return water box (4) is communicated with return water hole (17), and the side of return water box (4) is communicated with drain pipe (18).

3. The environmentally friendly dust removal equipment for building construction according to claim 2, characterized in that, Both ends of winding shaft (3) are connected with the outer wall of return water box (4) through coil spring (29), the lower portion of both sides of two groups of dust screen (2) is provided with clamping plate (19) that is obliquely arranged to dust screen (2), the lower end of clamping plate (19) is hingedly connected with supporting plate (20), both ends of supporting plate (20) are connected with protection frame (16), expansion pad (21) is arranged between clamping plate (19) and supporting plate (20), and the outer side of protection frame (16) is fixedly connected with communication box (22), and expansion pad (21) and water supply pipe (8) are communicated with communication box (22) through pipeline respectively.

4. The environmentally friendly dust removal equipment for building construction according to claim 3, characterized in that, The lower portion of the side of two groups of dust screen (2) that is away from each other is provided with roller brush (23), both ends of roller brush (23) pass through protection frame (16) and are rotatably connected with protection frame (16), both ends of winding shaft (3) are connected with first pulley (24) through one-way bearing, both ends of roller brush (23) are connected with second pulley (25), and first pulley (24) and second pulley (25) are driven through transmission belt (26).

5. The environmentally friendly dust removal equipment for building construction according to claim 4, characterized in that, The lower portion of the side of two groups of dust screen (2) that is away from each other is provided with roller brush (23), both ends of roller brush (23) pass through protection frame (16) and are rotatably connected with protection frame (16), both ends of winding shaft (3) are connected with first pulley (24) through one-way bearing, both ends of roller brush (23) are connected with second pulley (25), and first pulley (24) and second pulley (25) are driven through transmission belt (26). The lower portion of the side of two groups of dust screen (2) that is away from each other is provided with roller brush (23), both ends of roller brush (23) pass through protection frame (16) and are rotatably connected with protection frame (16), both ends of winding shaft (3) are connected with first pulley (24) through one-way bearing, both ends of roller brush (23) are connected with second pulley (25), and first pulley (24) and second pulley (25) are driven through transmission belt (26).

6. The environmentally friendly dust removal equipment for building construction according to claim 5, characterized in that, The upper part of the protection frame (16) is provided with an arc-shaped slot (28) corresponding to the spraying pipe (1).

7. The environmentally friendly dust removal equipment for building construction according to claim 6, characterized in that, The first hinge seat (11) and the second hinge seat (13) are both damping hinge seats.

8. The environmentally friendly dust removal equipment for building construction according to claim 7, characterized in that, Both ends of the water supply pipe (8) are connected with quick flanges or plug-in joints.

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