Full-automatic dustproof awning for large-span foundation pit excavation construction site

Abstract

The invention discloses a full-automatic dustproof awning for a large-span foundation pit excavation construction site, and belongs to the technical field of building construction dustproof awning, the full-automatic dustproof awning comprises two portal frames, one side of each portal frame is provided with a water storage tank, the portal frames are rotationally connected with rotating frames in a symmetrical structure, and the dustproof awning is arranged in a storage seat; the two sides of the top frame are fixedly connected with the collecting frames, the collecting frames are provided with two awning flushing brushes which are of a vertically symmetrical structure, one side of each collecting frame is rotationally connected with the transmission mechanism, and the outer end of the dustproof awning is fixedly connected with the water collecting pipe. According to the automatic cleaning device, the flushing brush can evenly clean along the two sides of the awning, the situation that local cleaning is not thorough is avoided, the manual cleaning frequency is reduced through the automatic cleaning device, the maintenance cost can be reduced, the light transmission of the dustproof awning can be guaranteed, and the service life of the dustproof awning can be effectively prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field of dust-proof canopies for building construction, and in particular relates to a full-automatic dust-proof canopy for use at a large-span foundation pit excavation construction site. Background Art

[0002] A large-span foundation pit refers to a foundation pit with a large width or span in underground engineering construction, usually referring to a situation where the width of the foundation pit exceeds 20 meters or even larger. Large-span foundation pits are commonly found in urban deep foundation pits, large underground buildings, transportation hubs and other projects. Due to their large scale, high construction difficulty and technical requirements, they place high demands on foundation pit support design, construction monitoring and safety management.

[0003] Fully automatic dustproof canopy refers to a canopy system that can be automatically extended or adjusted. It is designed with dustproof function and is usually used in outdoor places or on the top of buildings to block sunlight, reduce temperature, protect equipment from weather effects, and prevent the entry of dust or sand.

[0004] The fully automatic dust-proof canopy used in large-span foundation pit excavation construction sites is a dust-proof system designed to solve the problem of generating a large amount of dust, dirt and other pollutants during large-scale foundation pit excavation operations. During the foundation pit excavation process, especially during earthwork, rock and soil operations, dust pollution at the construction site will have a great impact on the environment, the health of construction workers and surrounding residents. The fully automatic dust-proof canopy device can effectively reduce the flying of dust without affecting the normal progress of construction by creating an automatically adjustable dust cover.

[0005] The prior art discloses some invention patents in the field of dust-proof skylight technology for construction. Among them, the Chinese patent with application number CN220406607U discloses a fully automatic dust-proof skylight system for large-span foundation pit excavation construction, which realizes remote control expansion and contraction. All construction operations are carried out under the skylight, which improves the construction environment and avoids the impact of dust on the surrounding environment and residents' lives. In addition, the skylight dust-proof net has obvious noise reduction effect, and has the functions of dust prevention, noise reduction, sunshade, and cooling. It can be recycled and used at the end of the project, reducing the soil pollution problem of conventional dust-proof nets.

[0006] There are still some problems when using this device:

[0007] The device uses a canopy dustproof net to achieve dust prevention. Since the foundation pit excavation construction will generate a large amount of dust, the dust will adhere to the canopy dustproof net. Since the device is not convenient for cleaning the canopy dustproof net, excessive dust accumulation will clog the pores of the dustproof net, reducing its air circulation and dust interception effect, affecting the dustproof function. Excessive dust accumulation may cause the dustproof net to become heavy, increase the tension, and may increase the burden on the supporting structure.

[0008] The device uses a canopy dustproof net to prevent dust. On rainy days, it is not convenient to block the rain, causing rainwater to fall into the excavated foundation pit. The accumulation of rainwater may cause some construction links to stop work, increase the risk of project delays, extend the construction period, and affect the overall progress of the project.

[0009] Based on this, the present invention designs a fully automatic dust-proof canopy for use in large-span foundation pit excavation construction sites to solve the above problems. Summary of the invention

[0010] The purpose of the present invention is to solve the problem of inconvenience in automatic cleaning and shielding rainwater, and to propose a fully automatic dustproof canopy for large-span foundation pit excavation construction sites.

[0011] In order to achieve the above object, the present invention adopts the following technical solutions:

[0012] A fully automatic dustproof canopy for use at a large-span foundation pit excavation construction site comprises two gantries, a water storage tank is provided on one side of the gantries, a rotating frame is rotatably connected to the gantries in a symmetrical structure, an adjustment mechanism is fixedly connected to the gantries, a top frame is provided between the two gantries, storage seats are fixedly connected to both sides of the top frame, a dustproof canopy is provided in the storage seat, collecting frames are fixedly connected to both sides of the top frame, two canopy flushing brushes are provided on the collecting frame in an upper and lower symmetrical structure, a transmission mechanism is rotatably connected to one side of the collecting frame, and a water collecting pipe is fixedly connected to the outer end of the dustproof canopy.

[0013] As a further description of the above technical solution:

[0014] A hydraulic rod is fixedly connected to the gantry, and two adjusting connecting rods are rotatably connected to the hydraulic rod in a symmetrical structure, and the other end of the adjusting connecting rod is rotatably connected to the rotating frame.

[0015] As a further description of the above technical solution:

[0016] The adjustment mechanism includes a motor A, which is fixedly connected to the inner wall of the gantry, a threaded rod A is fixedly connected to the output end of the motor A, a driving wheel is fixedly connected to the bottom end of the threaded rod A, rotating shafts are arranged on both sides of the driving wheel, the rotating shafts are rotatably connected to the gantry, and transmission wheels are fixedly connected to both ends of the rotating shaft, and one of the transmission wheels is meshed with the driving wheel for transmission.

[0017] As a further description of the above technical solution:

[0018] A universal joint is rotatably connected inside the rotating frame, one end of the universal joint is connected and fixedly provided with a threaded rod B, the other end of the universal joint passes through the inner wall of the rotating frame and extends to the outside and is connected and fixedly provided with a driven wheel, and the driven wheel is meshed with the transmission wheel for transmission.

[0019] As a further description of the above technical solution:

[0020] A filter is fixedly provided at the opening of one end of the water collecting pipe connected to the dustproof canopy, a fixing frame is provided on the lower side of the water collecting pipe, the fixing frame is provided with a hollow structure, both ends of the fixing frame are rotatably connected with both ends of the water collecting pipe, a water guiding hose is fixedly provided at one end of the fixing frame, the other end of the water guiding hose is connected with a water storage tank, both ends of the fixing frame are fixedly provided with adjusting columns B, and the adjusting columns B are threadedly connected with the threaded rod B.

[0021] As a further description of the above technical solution:

[0022] Adjustment columns A are fixedly connected at both ends of the bottom of the top frame, and the adjustment column A is threadedly connected to the threaded rod A. A spray pipe is fixedly installed at the bottom of the top frame, and a lighting lamp is fixedly installed on the spray pipe. A pump body is fixedly connected at one end of the spray pipe, and the pump body is fixedly connected to the top frame. The input end of the pump body is connected to the water tank through a hose.

[0023] As a further description of the above technical solution:

[0024] A reel is rotatably connected to the storage seat, the reel is fixedly connected to one end of the dustproof canopy, a motor B is fixedly connected to the outer end of the reel, the motor B is fixedly connected to the top frame, and a gear disc is fixedly connected to the output end of the motor B.

[0025] As a further description of the above technical solution:

[0026] A sewage pipe is fixedly connected to the bottom end of the collecting frame, and two slide grooves are provided on the side of the sewage pipe close to the motor B.

[0027] As a further description of the above technical solution:

[0028] A sliding sleeve is slidably provided at one end of the awning flushing brush, and the sliding sleeve is fixedly connected to the inner wall of the slide groove. The awning flushing brush is arranged in a hollow structure, and a plurality of spray holes are provided on the side of the awning flushing brush close to the dustproof awning. A three-way hose is connected between the two awning flushing brushes, and the other end of the three-way hose is fixedly connected to the pump body.

[0029] As a further description of the above technical solution:

[0030] The transmission mechanism includes a gear sleeve, which is rotatably connected to the top frame, and the gear sleeve is meshingly transmitted with the gear disc. A turntable is rotatably connected to the gear sleeve, and a plurality of transmission teeth are rotatably connected to the turntable in an annular structure. A tension spring is fixedly connected to the transmission tooth, and the other end of the tension spring is fixedly connected to the inner wall of the turntable, and the transmission tooth is meshingly transmitted with the tooth grooves on the inner wall of the gear sleeve. A bevel gear A is fixedly connected to the outer end of the turntable, and a bevel gear B is meshingly transmitted on one side of the bevel gear A, and a double-headed shifting rod is fixedly connected to the bevel gear B, and both ends of the double-headed shifting rod are rotatably connected to one end of the awning washing brush, and the double-headed shifting rod is rotatably connected to the awning washing brush.

[0031] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0032] 1. In the present invention, by arranging a awning flushing brush, while the dustproof awning is retracted by the reel, the awning flushing brush is driven to perform circular motion through the transmission mechanism, and water is pumped out through the awning flushing brush by the pump body, so that the flushing brush can clean evenly along both sides of the awning to avoid incomplete local cleaning. The automatic cleaning device reduces the frequency of manual cleaning, reduces maintenance costs, ensures the light transmittance of the dustproof awning, and effectively extends the service life of the dustproof awning.

[0033] 2. In the present invention, by setting up a dustproof canopy made of PVC membrane material, it is possible to block rainwater on rainy days and prevent rainwater from falling directly into the foundation pit being excavated. It can effectively cope with the impact of bad weather on foundation pit construction and avoid the problems caused by rainwater accumulation. At the same time, the rainwater can be filtered and collected in a water storage tank using a water collection pipe, thereby improving the utilization efficiency of water resources, reducing environmental pollution, and meeting the requirements of sustainable development in modern building construction.

[0034] 3. In the present invention, by setting an adjustment mechanism, the top frame and the water collecting pipe can be adjusted at the same time, so that the two water collecting pipes can pull open the dustproof canopy to form a shielding range of different widths. The shielding range can be adjusted according to the changes in the foundation pit to avoid excessive or insufficient shielding, ensuring that the canopy can cover the entire foundation pit area and provide sufficient protection. At the same time, by setting a collection rack, the sewage when cleaning the dustproof canopy can be collected to prevent the sewage from falling into the foundation pit and polluting the construction site. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the overall structure of a fully automatic dust-proof canopy for use at a large-span foundation pit excavation construction site proposed by the present invention;

[0036] Figure 2A partial cross-sectional schematic diagram of a part of the structure of a fully automatic dust-proof canopy for use at a large-span foundation pit excavation construction site proposed by the present invention;

[0037] Figure 3 A schematic diagram of the gantry structure of a fully automatic dust-proof canopy for a large-span foundation pit excavation construction site proposed by the present invention;

[0038] Figure 4 This is a schematic diagram of the structure of an adjustment mechanism of a fully automatic dust-proof canopy for use at a large-span foundation pit excavation construction site proposed by the present invention;

[0039] Figure 5 A schematic cross-sectional view of a rotating frame structure of a fully automatic dust-proof canopy for use at a large-span foundation pit excavation construction site proposed by the present invention;

[0040] Figure 6 A partial cross-sectional schematic diagram of a water collecting pipe structure of a fully automatic dust-proof canopy for use at a large-span foundation pit excavation construction site proposed by the present invention;

[0041] Figure 7 This is a schematic diagram of the top frame structure of a fully automatic dust-proof canopy for use at a large-span foundation pit excavation construction site proposed by the present invention;

[0042] Figure 8 This is a schematic cross-sectional view of a storage seat and other structures of a fully automatic dustproof canopy for use at a large-span foundation pit excavation construction site proposed by the present invention;

[0043] Fig. 9 This is a schematic diagram of the cross-sectional expansion of the structure of a collection seat and other components of a fully automatic dust-proof canopy for use at a large-span foundation pit excavation construction site proposed by the present invention;

[0044] Fig.10 The present invention is a partial sectional expansion schematic diagram of the transmission mechanism structure of a fully automatic dust-proof canopy for use at a large-span foundation pit excavation construction site.

[0045] Legend:

[0046] 1. Gantry; 2. Water storage tank; 3. Rotating frame; 4. Adjustment mechanism; 5. Top frame; 6. Storage seat; 7. Dustproof canopy; 8. Collection rack; 9. Canopy washing brush; 10. Transmission mechanism; 11. Water collecting pipe; 101. Hydraulic rod; 102. Adjustment connecting rod; 401. Motor A; 402. Threaded rod A; 403. Driving wheel; 404. Rotating shaft; 405. Driving wheel; 301. Universal joint; 302. Threaded rod B; 303. Driven wheel; 110 1. Filter; 1102. Fixing bracket; 1103. Adjusting column B; 501. Adjusting column A; 502. Spray tube; 503. Lighting lamp; 601. Scroll; 602. Motor B; 603. Toothed disc; 801. Drain pipe; 802. Slide; 901. Sliding sleeve; 1001. Gear sleeve; 1002. Turntable; 1003. Transmission gear; 1004. Tension spring; 1005. Bevel gear A; 1006. Bevel gear B; 1007. Double-headed lever. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] Please refer to the attached Figure 1 -Attached Fig.10 The present invention provides a technical solution: a fully automatic dustproof canopy for large-span foundation pit excavation construction sites, comprising two gantries 1, a water storage tank 2 is arranged on one side of the gantries 1, a rotating frame 3 is rotatably connected and arranged on the gantries 1 in a symmetrical structure, an adjustment mechanism 4 is connected and fixedly arranged on the gantries 1, a top frame 5 is arranged between the two gantries 1, a storage seat 6 is connected and fixedly arranged on both sides of the top frame 5, a dustproof canopy 7 is arranged in the storage seat 6, a collecting frame 8 is connected and fixedly arranged on both sides of the top frame 5, two canopy flushing brushes 9 are arranged on the collecting frame 8 in an upper and lower symmetrical structure, a transmission mechanism 10 is rotatably connected and arranged on one side of the collecting frame 8, and a water collecting pipe 11 is connected and fixedly arranged on the outer end of the dustproof canopy 7. The dustproof canopy 7 is made of PVC film material and has the function of waterproof and light-transmitting.

[0049] Specifically, Figure 3 As shown, a hydraulic rod 101 is fixedly connected to the gantry 1 , and two adjusting connecting rods 102 are rotatably connected to the hydraulic rod 101 in a symmetrical structure, and the other end of the adjusting connecting rod 102 is rotatably connected to the rotating frame 3 .

[0050] Specifically, Figure 4As shown, the adjustment mechanism 4 includes a motor A401, which is connected and fixed to the inner wall of the gantry 1, a threaded rod A402 is connected and fixed to the output end of the motor A401, a driving wheel 403 is connected and fixed to the bottom end of the threaded rod A402, a rotating shaft 404 is arranged on both sides of the driving wheel 403, the rotating shaft 404 is rotatably connected to the gantry 1, and a transmission wheel 405 is connected and fixed to both ends of the rotating shaft 404, and one of the transmission wheels 405 is meshed and transmitted with the driving wheel 403. The motor A401 drives the connected threaded rod A402 to rotate, at which time the threaded rod A402 will drive the top frame 5 connected to the adjustment column A501 to move upward, and at the same time, the threaded rod A402 will drive the connected driving wheel 403 to rotate, so that the driving wheel 403 drives the rotating shaft 404 connected to the transmission wheel 405 to rotate, so that the rotating shaft 404 drives another transmission wheel 405 to rotate.

[0051] Specifically, Figure 5 As shown, a universal joint 301 is rotatably connected in the rotating frame 3, a threaded rod B302 is fixedly connected to one end of the universal joint 301, and a driven wheel 303 is fixedly connected to the other end of the universal joint 301 through the inner wall of the rotating frame 3, extending to the outside and being connected to the driven wheel 303, which is meshed with the transmission wheel 405 for transmission. The transmission wheel 405 can drive the universal joint 301 connected to the driven wheel 303 to rotate, so that the universal joint 301 drives the connected threaded rod B302 to rotate, so that the threaded rod B302 drives the water collecting pipe 11 connected to the adjusting column B1103 to move upward.

[0052] Specifically, Figure 6 As shown, a filter screen 1101 is fixedly provided at the opening of one end of the water collecting pipe 11 connected to the dustproof canopy 7, a fixing frame 1102 is provided at the lower side of the water collecting pipe 11, the fixing frame 1102 is provided in a hollow structure, the two ends of the fixing frame 1102 are connected and rotatably connected with the two ends of the water collecting pipe 11, a water guide hose is fixedly provided at one end of the fixing frame 1102, the other end of the water guide hose is connected to the water storage tank 2, and an adjustment column B1103 is fixedly provided at both ends of the fixing frame 1102, and the adjustment column B1103 is threadedly connected with the threaded rod B302. Rainwater will flow to the water collecting pipe 11 through the dustproof canopy 7, and will be filtered under the action of the filter screen 1101 on the water collecting pipe 11, and then flow into the water guide hose through the fixing frame 1102, and then be injected into the water storage tank 2 through the water guide hose.

[0053] Specifically, Figure 7As shown, both ends of the bottom of the top frame 5 are connected and fixed with adjustment columns A501, which are threadedly connected with the threaded rod A402, a spray pipe 502 is fixedly installed at the bottom of the top frame 5, and a lighting lamp 503 is fixedly installed on the spray pipe 502. A pump body is fixedly installed at one end of the spray pipe 502, and the pump body is fixedly connected to the top frame 5. The input end of the pump body is connected to the water storage tank 2 through a hose. The water in the water storage tank 2 is pumped out by the pump body and sprayed out through the spray pipe 502, so as to reduce the dust generated during the foundation pit construction, and the lighting lamp 503 can improve the lighting conditions of the construction area.

[0054] Specifically, Figure 8 As shown, a reel 601 is rotatably connected in the storage seat 6, the reel 601 is fixedly connected to one end of the dustproof canopy 7, a motor B602 is fixedly connected to the outer end of the reel 601, the motor B602 is fixedly connected to the top frame 5, and a toothed disc 603 is fixedly connected to the output end of the motor B602. The motor B602 drives the reel 601 to rotate, so that the reel 601 drives the dustproof canopy 7 to be rolled up into the storage seat 6.

[0055] Specifically, Fig. 9 As shown, a sewage pipe 801 is fixedly connected to the bottom end of the collecting frame 8, and two slide grooves 802 are provided on one side of the sewage pipe 801 close to the motor B602.

[0056] Specifically, Fig. 9 As shown, a sleeve 901 is provided at one end of the awning flushing brush 9 in a sliding manner, and the sleeve 901 is connected and fixed to the inner wall of the slide groove 802. The awning flushing brush 9 is provided with a hollow structure, and a plurality of spray holes are provided on the side of the awning flushing brush 9 close to the dustproof awning 7. A three-way hose is connected between the two awning flushing brushes 9, and the other end of the three-way hose is connected and fixed to the pump body. The awning flushing brush 9 performs a circular motion, and at the same time, the water in the water storage tank 2 is pumped out through the pump body and sprayed through the awning flushing brush 9 to wash the upper and lower sides of the dustproof awning 7.

[0057] Specifically, Fig.10As shown, the transmission mechanism 10 includes a gear sleeve 1001, the gear sleeve 1001 is rotatably connected to the top frame 5, the gear sleeve 1001 is meshed with the toothed disc 603 for transmission, a rotating disc 1002 is rotatably connected to the gear sleeve 1001, a plurality of transmission teeth 1003 are rotatably connected to the rotating disc 1002 in an annular structure, a tension spring 1004 is fixedly connected to the transmission teeth 1003, and the other end of the tension spring 1004 is fixedly connected to the inner wall of the rotating disc 1002 The transmission gear 1003 is meshed with the tooth groove of the inner wall of the gear sleeve 1001 for transmission. The outer end of the rotating disk 1002 is connected and fixedly provided with a bevel gear A1005. One side of the bevel gear A1005 is meshed and transmission-provided with a bevel gear B1006. The bevel gear B1006 is connected and fixedly provided with a double-headed lever 1007. The two ends of the double-headed lever 1007 are rotatably connected with one end of the awning washing brush 9. The double-headed lever 1007 is rotatably connected with the awning washing brush 9. The motor B602 drives the gear sleeve 1001 to rotate through the toothed disk 603. At this time, the gear sleeve 1001 drives the rotating disk 1002 connected with the transmission gear 1003 to rotate through the internal tooth groove, so that the rotating disk 1002 drives the connected bevel gear A1005 to rotate, so that the bevel gear A1005 drives the double-headed lever 1007 connected with the bevel gear B1006 to rotate, so that the double-headed lever 1007 drives the awning washing brush 9.

[0058] Working principle, when in use: install the device above the location of the foundation pit to be excavated, by fixing two gantries 1 on both sides of the foundation pit, the gantries 1 are convenient for workers to enter and exit, and then adjust the device according to the size of the foundation pit, first use the motor A401 to drive the connected threaded rod A402 to rotate, at this time the threaded rod A402 will drive the top frame 5 connected to the adjustment column A501 to move up, and at the same time the threaded rod A402 will drive the connected active wheel 403 to rotate, so that the active wheel 403 drives the rotating shaft 404 connected to the transmission wheel 405 to rotate, so that the rotating shaft 404 drives another transmission wheel 405 to rotate, so that the transmission wheel 405 can drive the universal joint 301 connected to the driven wheel 303 to rotate, so that the universal joint 301 drives the connected threaded rod B302 to rotate, so that the threaded rod B302 drives the water collecting pipe 11 connected to the adjustment column B1103 to move up;

[0059] Then, the hydraulic rod 101 is used to drive the adjusting link 102, so that the adjusting link 102 drives the rotating frame 3 to rotate. At this time, the rotating frame 3 drives the water collecting pipe 11 to rotate to one side. At the same time, the motor B602 is used to drive the connected reel 601 to rotate, so that the dustproof canopy 7 connected to the reel 601 can be pulled out by the water collecting pipe 11 to form a shield above the foundation pit. During the foundation pit construction, the water in the water storage tank 2 is pumped out by the pump body and sprayed out through the spray pipe 502 to reduce the dust generated during the foundation pit construction. The lighting lamp 503 can improve the lighting conditions of the construction area.

[0060] On rainy days, rainwater will flow to the water collecting pipe 11 through the dustproof canopy 7, and will be filtered by the filter screen 1101 on the water collecting pipe 11, and then flow into the water guiding hose through the fixing frame 1102, and then be injected into the water storage tank 2 through the water guiding hose for collection;

[0061] When the dustproof canopy 7 needs to be cleaned, the motor B602 is used to drive the reel 601 to rotate, so that the reel 601 drives the dustproof canopy 7 to be rolled up into the storage seat 6. At this time, the motor B602 will drive the gear sleeve 1001 to rotate through the toothed disc 603. At this time, the gear sleeve 1001 will drive the turntable 1002 connected to the transmission gear 1003 to rotate through the internal tooth groove, so that the turntable 1002 drives the connected bevel gear A1005 to rotate, so that the bevel gear A1005 will drive the double-headed lever 1007 connected to the bevel gear B1006 to rotate, so that the double-headed lever 1007 drives the canopy flushing brush 9. At this time, under the action of the sliding sleeve 901, the canopy flushing brush 9 makes a circular motion, and at the same time, the water in the water storage tank 2 is pumped out through the pump body and sprayed through the canopy flushing brush 9 to scrub the upper and lower sides of the dustproof canopy 7, and then the scrubbed sewage will fall into the collection rack 8 and be discharged through the sewage pipe 801.

[0062] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fully automatic dustproof canopy for use at a large-span foundation pit excavation construction site, comprising two gantries (1), characterized in that: A water storage tank (2) is provided on one side of the gantry (1); a rotating frame (3) is rotatably connected to the gantry (1) in a symmetrical structure; an adjusting mechanism (4) is fixedly connected to the gantry (1); a top frame (5) is provided between the two gantries (1); a storage seat (6) is fixedly connected to both sides of the top frame (5); a dustproof canopy (7) is provided inside the storage seat (6); a collecting frame (8) is fixedly connected to both sides of the top frame (5); two canopy flushing brushes (9) are provided on the collecting frame (8) in an up-and-down symmetrical structure; a transmission mechanism (10) is rotatably connected to one side of the collecting frame (8); and a water collecting pipe (11) is fixedly connected to the outer end of the dustproof canopy (7).

2. The fully automatic dustproof canopy for large-span foundation pit excavation construction site according to claim 1 is characterized in that: A hydraulic rod (101) is fixedly connected to the gantry (1), and two adjusting connecting rods (102) are rotatably connected to the hydraulic rod (101) in a symmetrical structure, and the other end of the adjusting connecting rod (102) is rotatably connected to the rotating frame (3).

3. The fully automatic dustproof canopy for large-span foundation pit excavation construction site according to claim 1 is characterized in that: The adjustment mechanism (4) comprises a motor A (401), the motor A (401) being connected and fixedly arranged with the inner wall of the gantry (1), the output end of the motor A (401) being connected and fixedly arranged with a threaded rod A (402), the bottom end of the threaded rod A (402) being connected and fixedly arranged with a driving wheel (403), both sides of the driving wheel (403) being provided with a rotating shaft (404), the rotating shaft (404) being rotatably connected with the gantry (1), both ends of the rotating shaft (404) being connected and fixedly arranged with a transmission wheel (405), one of the transmission wheels (405) being meshed with the driving wheel (403) for transmission.

4. The fully automatic dustproof canopy for large-span foundation pit excavation construction site according to claim 1 is characterized in that: A universal joint (301) is rotatably connected inside the rotating frame (3), one end of the universal joint (301) is connected and fixedly provided with a threaded rod B (302), the other end of the universal joint (301) passes through the inner wall of the rotating frame (3) and extends to the outside and is connected and fixedly provided with a driven wheel (303), and the driven wheel (303) is meshed with the transmission wheel (405) for transmission.

5. The fully automatic dustproof canopy for large-span foundation pit excavation construction site according to claim 1 is characterized in that: A filter screen (1101) is fixedly provided at the opening of one end of the water collecting pipe (11) connected to the dustproof canopy (7); a fixing frame (1102) is provided at the lower side of the water collecting pipe (11); the fixing frame (1102) is provided with a hollow structure; two ends of the fixing frame (1102) are rotatably connected to two ends of the water collecting pipe (11); a water guide hose is fixedly provided at one end of the fixing frame (1102); the other end of the water guide hose is connected to the water storage tank (2); and adjustment columns B (1103) are fixedly provided at both ends of the fixing frame (1102); the adjustment columns B (1103) are threadedly connected to the threaded rod B (302).

6. The fully automatic dustproof canopy for large-span foundation pit excavation construction site according to claim 1, characterized in that: Adjustment columns A (501) are fixedly connected to both ends of the bottom of the top frame (5), and the adjustment columns A (501) are threadedly connected to the threaded rod A (402). A spray pipe (502) is fixedly installed at the bottom of the top frame (5), and a lighting lamp (503) is fixedly installed on the spray pipe (502). A pump body is fixedly connected to one end of the spray pipe (502), and the pump body is fixedly connected to the top frame (5), and the input end of the pump body is connected to the water storage tank (2) through a hose.

7. The fully automatic dustproof canopy for large-span foundation pit excavation construction site according to claim 1, characterized in that: A reel (601) is rotatably connected and provided in the storage seat (6); the reel (601) is fixedly connected to one end of the dustproof canopy (7); a motor B (602) is fixedly connected to the outer end of the reel (601); the motor B (602) is fixedly connected to the top frame (5); and a toothed disc (603) is fixedly connected to the output end of the motor B (602).

8. The fully automatic dustproof canopy for large-span foundation pit excavation construction site according to claim 1, characterized in that: A sewage pipe (801) is fixedly connected to the bottom end of the collecting frame (8), and two slide grooves (802) are provided on a side of the sewage pipe (801) close to the motor B (602).

9. The fully automatic dustproof canopy for large-span foundation pit excavation construction site according to claim 1, characterized in that: One end of the awning flushing brush (9) is slidably matched with a sliding sleeve (901), and the sliding sleeve (901) is fixedly connected to the inner wall of the slide groove (802). The awning flushing brush (9) is arranged in a hollow structure, and a plurality of spray holes are provided on a side of the awning flushing brush (9) close to the dustproof awning (7). A three-way hose is connected between two of the awning flushing brushes (9), and the other end of the three-way hose is fixedly connected to the pump body.

10. The fully automatic dustproof canopy for large-span foundation pit excavation construction site according to claim 1, characterized in that: The transmission mechanism (10) comprises a gear sleeve (1001), the gear sleeve (1001) is rotatably connected to the top frame (5), the gear sleeve (1001) is meshed with a toothed disc (603) for transmission, a rotating disc (1002) is rotatably connected to the gear sleeve (1001), a plurality of transmission teeth (1003) are rotatably connected to the rotating disc (1002) in an annular structure, a tension spring (1004) is fixedly connected to the transmission teeth (1003), and the other end of the tension spring (1004) is connected to the inner wall of the rotating disc (1002). The transmission teeth (1003) are arranged in meshing transmission with the tooth grooves on the inner wall of the gear sleeve (1001); the outer end of the turntable (1002) is connected and fixedly provided with a bevel gear A (1005); one side of the bevel gear A (1005) is arranged in meshing transmission with a bevel gear B (1006); a double-headed lever (1007) is connected and fixedly provided on the bevel gear B (1006); both ends of the double-headed lever (1007) are rotatably connected with one end of the awning washing brush (9); and the double-headed lever (1007) is rotatably connected with the awning washing brush (9).

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