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

Abstract

The application discloses a kind of full-automatic dustproof awning for large-span foundation pit excavation construction site, belong to building construction dustproof awning technical field, including two portal frames, and the side of portal frame is provided with water storage tank, and the upper symmetry structure rotationally connected of portal frame is provided with rotating frame, and dustproof awning is provided in storage seat, and the both sides of top frame are connected and fixedly provided with collecting frame, and the both sides of collecting frame are provided with two awning washing brushes in upper and lower symmetry structure, and the side of collecting frame is rotationally connected and provided with transmission mechanism, and the outer end of dustproof awning is connected and fixedly provided with water collecting pipe, in the application, through the setting awning washing brush, water is sprayed through awning washing brush by pump body simultaneously, so that awning washing brush can be washed evenly along the both sides of awning, avoid local cleaning incomplete condition, and the frequency of manual cleaning is reduced by automatic cleaning device, maintenance cost can be reduced, the light transmittance of dustproof awning can be guaranteed, and the service life of dustproof awning can be effectively prolonged.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of dustproof sky curtains for building construction, and particularly relates to a full-automatic dustproof sky curtain for large-span foundation pit excavation construction sites. BACKGROUND

[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 case where the width of the foundation pit exceeds 20 meters or even more. Large-span foundation pits are commonly found in urban deep foundation pits, large underground buildings, transportation hubs and other projects. Due to its large scale, the construction difficulty and technical requirements are high, thus putting forward higher requirements for foundation pit support design, construction monitoring and safety management.

[0003] A full-automatic dustproof sky curtain refers to a sky curtain system that can automatically extend or adjust, and has dustproof function in design, and is usually used on the top of outdoor places or buildings to block sunlight, reduce temperature, protect equipment from weather, and prevent dust or sand from entering.

[0004] A full-automatic dustproof sky curtain for large-span foundation pit excavation construction sites is a dustproof system designed to solve the problem of a large amount of dust, dust and other pollutants generated during large foundation pit excavation. During the foundation pit excavation process, especially during earthwork, rock-soil and other operations, dust pollution at the construction site will have a great impact on the environment, the health of construction personnel and surrounding residents. The full-automatic dustproof sky curtain device creates an automatically adjusted dust cover, which can effectively reduce dust flying and not affect the normal construction.

[0005] Some invention patents in the technical field of dustproof sky curtains for building construction are disclosed in the prior art. The Chinese patent with the application number CN202321838148.3 discloses a full-automatic dustproof sky curtain system for large-span foundation pit excavation construction, which realizes remote control deployment and contraction, all construction work surfaces are carried out under the sky curtain, the construction work environment is improved, and the influence of dust on the surrounding environment and residents' life is avoided; and the sky curtain dustproof net has obvious noise reduction effect, and has the functions of dust prevention, noise reduction, sunshade, cooling and the like, and can be recycled and used after the project is completed, reducing the soil pollution problem of conventional dustproof nets.

[0006] However, the device still has some problems when in use:

[0007] The device uses a sky curtain dustproof net to achieve dust prevention. Since a large amount of dust is generated during foundation pit excavation construction, the dust will adhere to the sky curtain dustproof net. Since the device is not convenient for cleaning the sky curtain dustproof net, too much dust will block the pores of the dustproof net, reducing its air circulation and dust interception effect, affecting the dust prevention function. Too much dust accumulation may cause the dustproof net to become heavy, increase the tension, and increase the burden of the supporting structure.

[0008] The device realizes dust prevention by using a sky screen dust screen, and in rainy days, it is inconvenient to shield rainwater, so that rainwater will fall into the excavated foundation pit, and the accumulation of rainwater may cause part of the construction link to stop working, increase the risk of engineering delay, prolong the construction period and affect the overall progress of the project.

[0009] Based on this, the present application designs a full-automatic dustproof sky screen for large-span foundation pit excavation construction site to solve the above problems. SUMMARY

[0010] The present application aims at: in order to solve the problem of not being convenient for automatic cleaning and rainwater shielding, a full-automatic dustproof sky screen for large-span foundation pit excavation construction site is provided.

[0011] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0012] The utility model provides an automatic dustproof awning for large span foundation pit excavation construction site, including two gantry, one side of the gantry is provided with the water storage tank, the symmetrical structure rotationally connected is provided with the rotating frame on the gantry, the adjusting mechanism is fixedly connected and arranged on the gantry, the top frame is arranged between two the gantry, the receiving seat is fixedly connected and arranged on both sides of the top frame, the dustproof awning is arranged in the receiving seat, the collecting frame is fixedly connected and arranged on both sides of the top frame, the two awning washing brushes of upper and lower symmetrical structure are arranged on the collecting frame, the transmission mechanism is rotatably connected on the collecting frame side, the water collecting pipe is fixedly connected and arranged outside the dustproof awning, the reel is rotatably connected and arranged in the receiving seat, one end of the reel is fixedly connected with the dustproof awning, motor B is fixedly connected and arranged on the outer end of the reel, motor B is fixedly connected with the top frame, the gear disc is fixedly connected and arranged on the output end of motor B, the blowdown pipe is fixedly connected and arranged at the bottom of the collecting frame, two grooves are formed on the side of the blowdown pipe close to motor B, the slide sleeve is slidably connected with one end of the awning washing brush, the slide sleeve is fixedly connected and arranged with the inner wall of the groove, the awning washing brush is hollow, a plurality of spray holes are formed on the side of the awning washing brush close to the dustproof awning, the three-way hose is communicated between two the awning washing brush, the other end of the three-way hose is fixedly connected with the pump body, the transmission mechanism includes the gear sleeve, the gear sleeve is rotatably connected with the top frame, the gear sleeve is meshingly and drivingly arranged with the gear disc, the rotating disc is rotatably connected and arranged in the gear sleeve, a plurality of transmission teeth are rotatably connected and arranged on the rotating disc in ring structure, the tension spring is fixedly connected and arranged on the transmission tooth, the other end of the tension spring is fixedly connected and arranged with the inner wall of the rotating disc, the transmission tooth is meshingly and drivingly arranged with the tooth groove of the inner wall of the gear sleeve, the bevel gear A is fixedly connected and arranged on the outer end of the rotating disc, the bevel gear B is meshingly and drivingly arranged on the side of the bevel gear A, the double -end shift lever is fixedly connected and arranged on the bevel gear B, the double -end shift lever is rotatably connected with one end of the awning washing brush on both ends, and the double -end shift lever is rotatably connected with the awning washing brush.

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

[0014] The hydraulic rod is fixedly connected and arranged on the gantry, the two adjusting connecting rods of symmetrical structure are rotatably connected and arranged on the hydraulic rod, and the other end of the adjusting connecting rod is rotatably connected with the rotating frame.

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

[0016] The adjusting mechanism comprises a motor A, the motor A is fixedly connected with the inner wall of the gantry, a threaded rod A is fixedly connected with the output end of the motor A, a driving wheel is fixedly connected with the bottom end of the threaded rod A, a rotating shaft is arranged on both sides of the driving wheel, the rotating shaft is rotatably connected with the gantry, and a transmission wheel is fixedly connected with both ends of the rotating shaft, and one of the transmission wheels is in meshing transmission with the driving wheel.

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

[0018] The rotating frame is rotatably connected with a universal joint, one end of the universal joint is fixedly connected with a threaded rod B, the other end of the universal joint extends to the outside through the inner wall of the rotating frame and is fixedly connected with a driven wheel, and the driven wheel is in meshing transmission with the transmission wheel.

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

[0020] One end of the dustproof awning is connected with the water collecting pipe, a filter screen is fixedly connected with the opening of the one end, a fixed frame is arranged on the lower side of the water collecting pipe, the fixed frame is in hollow structure, the two ends of the fixed frame are rotatably connected with the two ends of the water collecting pipe, a water guide hose is fixedly connected with one end of the fixed frame, the other end of the water guide hose is communicated with the water storage tank, adjusting columns B are fixedly connected with the two ends of the fixed frame, and the adjusting columns B are in threaded connection with the threaded rod B.

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

[0022] The two ends of the top frame are fixedly connected with adjusting columns A, the adjusting columns A are in threaded connection with the threaded rod A, a spray pipe is fixedly arranged on the bottom of the top frame, a lighting lamp is fixedly arranged on the spray pipe, a pump body is fixedly connected with one end of the spray pipe, the pump body is fixedly connected with the top frame, and the input end of the pump body is communicated with the water storage tank through a hose.

[0023] As described above, due to the adoption of the above technical solution, the beneficial effects of the present application are:

[0024] 1、In the present application, by arranging the awning washing brush, when the dustproof awning is retracted by the reel, the awning washing brush is driven to move in a ring shape through the transmission mechanism, and water is sprayed out through the awning washing brush by the pump body, so that the washing brush can uniformly clean the two sides of the awning, avoiding the problem of incomplete local cleaning, reducing the frequency of manual cleaning, reducing maintenance cost, ensuring the light transmittance of the dustproof awning, and effectively prolonging the service life of the dustproof awning.

[0025] 2、The dustproof awning made of PVC film material can shield rainwater on rainy days, prevent rainwater from directly falling into the foundation pit being excavated, effectively cope with the influence of bad weather on the foundation pit construction, avoid problems caused by rainwater accumulation, filter and collect rainwater into the water storage tank by using the water collecting pipe at the same time, improve the utilization efficiency of water resources, reduce environmental pollution, and meet the sustainable development requirements in modern building construction.

[0026] 3、The adjusting mechanism can adjust the top frame and the water collecting pipe at the same time, so that the two water collecting pipes can pull apart the dustproof awning to form a shielding range with different widths, the shielding range can be adjusted according to the change of the foundation pit, excessive or insufficient shielding is avoided, the awning can cover the entire foundation pit area and provide sufficient protection, and the collection frame can collect sewage when the dustproof awning is cleaned, prevent the sewage from falling into the foundation pit, and avoid polluting the construction site. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 The whole structure schematic diagram of the full-automatic dustproof awning for large-span foundation pit excavation construction site is provided for the present application;

[0028] Figure 2 The partial structure local section view schematic diagram of the full-automatic dustproof awning for large-span foundation pit excavation construction site is provided for the present application;

[0029] Figure 3 The gantry structure schematic diagram of the full-automatic dustproof awning for large-span foundation pit excavation construction site is provided for the present application;

[0030] Figure 4 The adjusting mechanism structure schematic diagram of the full-automatic dustproof awning for large-span foundation pit excavation construction site is provided for the present application;

[0031] Figure 5 The rotating frame structure section view schematic diagram of the full-automatic dustproof awning for large-span foundation pit excavation construction site is provided for the present application;

[0032] Figure 6 The water collecting pipe structure local section view schematic diagram of the full-automatic dustproof awning for large-span foundation pit excavation construction site is provided for the present application;

[0033] Figure 7 The top frame structure schematic diagram of the full-automatic dustproof awning for large-span foundation pit excavation construction site is provided for the present application;

[0034] Figure 8 The storage seat structure section view schematic diagram of the full-automatic dustproof awning for large-span foundation pit excavation construction site is provided for the present application;

[0035] Figure 9 A structure sectional view of a collecting seat of a full-automatic dustproof awning for a large-span foundation pit excavation construction site according to the present application is shown in the figure.

[0036] Figure 10 A structure partial sectional view of a transmission mechanism of a full-automatic dustproof awning for a large-span foundation pit excavation construction site according to the present application is shown in the figure.

[0037] Legend:

[0038] 1, gantry; 2, water storage tank; 3, rotating frame; 4, adjusting mechanism; 5, top frame; 6, storage seat; 7, dustproof awning; 8, collecting frame; 9, awning washing brush; 10, transmission mechanism; 11, water collecting pipe; 101, hydraulic rod; 102, adjusting connecting rod; 401, motor A; 402, threaded rod A; 403, driving wheel; 404, rotating shaft; 405, transmission wheel; 301, universal joint; 302, threaded rod B; 303, driven wheel; 1101, filter screen; 1102, fixed frame; 1103, adjusting column B; 501, adjusting column A; 502, spray pipe; 503, illuminating lamp; 601, reel; 602, motor B; 603, toothed disc; 801, sewage pipe; 802, chute; 901, sliding sleeve; 1001, gear sleeve; 1002, rotating disc; 1003, transmission tooth; 1004, tension spring; 1005, bevel gear A; 1006, bevel gear B; 1007, double-headed shift lever. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0040] Please refer to the drawings in the embodiments of the present application Figure 1 - the drawings in the embodiments of the present application Figure 10The application provides a technical scheme: a full-automatic dustproof awning for a large-span foundation pit excavation construction site, which comprises two portal frames 1, the portal frame 1 is provided with a water storage tank 2 on one side, the portal frame 1 is provided with a rotating frame 3 in a symmetrical structure and rotatably connected, the portal frame 1 is provided with an adjusting mechanism 4 and fixedly connected, the portal frame 1 is provided with a top frame 5 between the two portal frames 1, the top frame 5 is provided with a storage seat 6 and fixedly connected on both sides, the storage seat 6 is provided with a dustproof awning 7, the top frame 5 is provided with a collecting frame 8 and fixedly connected on both sides, the collecting frame 8 is provided with two awning washing brushes 9 in an up-down symmetrical structure, the collecting frame 8 is provided with a transmission mechanism 10 and rotatably connected on one side, the dustproof awning 7 is provided with a water collecting pipe 11 and fixedly connected at the outer end, the storage seat 6 is provided with a reel 601 and rotatably connected through penetration, the reel 601 is fixedly connected with the dustproof awning 7 at one end, the reel 601 is provided with a motor B 602 and fixedly connected at the outer end, the motor B 602 is fixedly connected with the top frame 5, the motor B 602 is provided with a toothed disc 603 and fixedly connected at the output end, the collecting frame 8 is provided with a sewage pipe 801 and fixedly connected at the bottom end, the sewage pipe 801 is provided with two sliding grooves 802 on the side close to the motor B 602, the awning washing brush 9 is provided with a sliding sleeve 901 and slidably connected at one end, the sliding sleeve 901 is fixedly connected with the inner wall of the sliding groove 802, the awning washing brush 9 is provided in a hollow structure, the awning washing brush 9 is provided with a plurality of spray holes on the side close to the dustproof awning 7, the two awning washing brushes 9 are communicated with a three-way hose, the three-way hose is fixedly connected with a pump body at the other end, the transmission mechanism 10 comprises a gear sleeve 1001, the gear sleeve 1001 is rotatably connected with the top frame 5, the gear sleeve 1001 is in meshing transmission with the toothed disc 603, the gear sleeve 1001 is provided with a rotating disc 1002 and rotatably connected through penetration, the rotating disc 1002 is provided with a plurality of transmission teeth 1003 and rotatably connected in an annular structure, the transmission teeth 1003 are provided with a tension spring 1004 and fixedly connected, the other end of the tension spring 1004 is fixedly connected with the inner wall of the rotating disc 1002, the transmission teeth 1003 are in meshing transmission with the tooth groove of the inner wall of the gear sleeve 1001, the rotating disc 1002 is provided with a bevel gear A 1005 and fixedly connected at the outer end, the bevel gear A 1005 is provided with a bevel gear B 1006 and in meshing transmission on one side, the bevel gear B 1006 is provided with a double-headed lever 1007 and fixedly connected, the double-headed lever 1007 is rotatably connected with one end of the awning washing brush 9 at both ends, and the double-headed lever 1007 is rotatably connected with the awning washing brush 9. The dustproof awning 7 is made of PVC film material and plays a role of waterproof and light transmission.

[0041] Specifically, as shown in Figure 3 The hydraulic rod 101 is fixedly connected on the portal frame 1, the two adjusting connecting rods 102 are rotatably connected in a symmetrical structure on the hydraulic rod 101, and the other end of the adjusting connecting rod 102 is rotatably connected with the rotating frame 3.

[0042] Specifically, as shown in Figure 4As shown, the adjusting mechanism 4 includes a motor A401, which is fixedly arranged on the inner wall of the gantry 1. The output end of the motor A401 is fixedly connected with a threaded rod A402. The bottom end of the threaded rod A402 is fixedly connected with a driving wheel 403. The driving wheel 403 is provided with a rotating shaft 404 on both sides. The rotating shaft 404 is rotatably connected with the gantry 1. The rotating shaft 404 is fixedly connected with a transmission wheel 405 at both ends. One of the transmission wheels 405 is in meshing transmission with the driving wheel 403. The motor A401 drives the threaded rod A402 to rotate. At this time, the threaded rod A402 drives the top frame 5 connected with the adjusting column A501 to move upwards. At the same time, the threaded rod A402 drives the driving wheel 403 connected with it to rotate, so that the driving wheel 403 drives the rotating shaft 404 connected with the transmission wheel 405 to rotate, and the rotating shaft 404 drives the other transmission wheel 405 to rotate.

[0043] Specifically, as shown in the figure, Figure 5 The rotating frame 3 is rotatably connected with a universal joint 301. One end of the universal joint 301 is fixedly connected with a threaded rod B302. The other end of the universal joint 301 extends to the outside through the inner wall of the rotating frame 3 and is fixedly connected with a driven wheel 303. The driven wheel 303 is in meshing transmission with the transmission wheel 405. The transmission wheel 405 can drive the universal joint 301 connected with the driven wheel 303 to rotate, so that the universal joint 301 drives the threaded rod B302 connected with it to rotate, and the threaded rod B302 drives the adjusting column B1103 connected with the water collecting pipe 11 to move upwards.

[0044] Specifically, as shown in the figure, Figure 6 One end of the water collecting pipe 11 is fixedly connected with a filter screen 1101 at the opening connected with the dustproof awning 7. The lower side of the water collecting pipe 11 is provided with a fixed frame 1102. The fixed frame 1102 is provided in a hollow structure. The two ends of the fixed frame 1102 are rotatably connected with the two ends of the water collecting pipe 11. One end of the fixed frame 1102 is fixedly connected with a water guide hose. The other end of the water guide hose is in communication with the water storage tank 2. The two ends of the fixed frame 1102 are fixedly connected with adjusting columns B1103. The adjusting columns B1103 are in threaded connection with the threaded rod B302. Rainwater flows to the water collecting pipe 11 through the dustproof awning 7. Under the action of the filter screen 1101 on the water collecting pipe 11, the rainwater is filtered and then flows into the water guide hose through the fixed frame 1102 and then is injected into the water storage tank 2 through the water guide hose.

[0045] Specifically, as shown in the figure, Figure 7As shown, the top frame 5 bottom two ends are connected and fixedly provided with adjusting columns A501, the adjusting columns A501 are threadedly connected with the threaded rods A402, the top frame 5 bottom is fixedly provided with a spray pipe 502, the spray pipe 502 is fixedly provided with a lighting lamp 503, one end of the spray pipe 502 is fixedly provided with a pump body, the pump body is fixedly connected with the top frame 5, and the pump body input end is communicated with the water storage tank 2 through a hose. The water in the water storage tank 2 is pumped out by the pump body, sprayed out through the spray pipe 502, dust generated during the foundation pit construction is treated, and the lighting condition of the construction area is improved by the lighting lamp 503.

[0046] Working principle, in use: install the device above the position of the foundation pit to be dug, fix the two portal frames 1 on the two sides of the foundation pit, the portal frame 1 is convenient for workers to enter and exit, then adjust the device according to the size of the foundation pit, first, drive the threaded rod A402 connected with the motor A401 to rotate, at this time, the threaded rod A402 drives the top frame 5 connected with the adjusting column A501 to move up, at the same time, the threaded rod A402 drives the driving wheel 403 connected to rotate, so that the driving wheel 403 drives the transmission wheel 405 connected with the rotating shaft 404 to rotate, so that the rotating shaft 404 drives the other transmission wheel 405 to rotate, so that the transmission wheel 405 can drive the universal joint 301 connected with the driven wheel 303 to rotate, so that the universal joint 301 drives the threaded rod B302 connected with the adjusting column B1103 to rotate, so that the threaded rod B302 drives the water collecting pipe 11 connected with the adjusting column B1103 to move up;

[0047] Then drive the adjusting connecting rod 102 with the hydraulic rod 101, so that the adjusting connecting rod 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, drive the reel 601 connected with the motor B602 to rotate, so that the dustproof awning 7 connected with the reel 601 can be pulled out by the water collecting pipe 11, forming a barrier above the foundation pit, when the foundation pit is constructed, the water in the water storage tank 2 is pumped out by the pump body, sprayed out through the spray pipe 502, dust generated during the foundation pit construction is treated, and the lighting condition of the construction area is improved by the lighting lamp 503;

[0048] In rainy days, rainwater flows to the water collecting pipe 11 through the dustproof awning 7, is filtered under the action of the filter screen 1101 on the water collecting pipe 11, then flows into the water guide hose through the fixing frame 1102, and then is injected into the water storage tank 2 through the water guide hose for collection;

[0049] When the dustproof awning 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 awning 7 to be wound into the storage seat 6. At this time, the motor B602 drives the gear sleeve 1001 to rotate through the toothed disc 603. At this time, the gear sleeve 1001 drives the rotating disc 1002 connected with the transmission teeth 1003 to rotate through the internal tooth groove. The rotating disc 1002 drives the bevel gear A1005 connected with it to rotate, so that the bevel gear A1005 drives the double-end lever 1007 connected with the bevel gear B1006 to rotate, so that the double-end lever 1007 drives the awning washing brush 9 to rotate. At this time, under the action of the sliding sleeve 901, the awning washing brush 9 performs annular motion, and the water in the water storage tank 2 is pumped out through the awning washing brush 9 to spray out, so that the upper and lower sides of the dustproof awning 7 are washed. Then the sewage of the washing falls into the collecting frame 8 and is discharged through the sewage discharge pipe 801.

[0050] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A full-automatic dustproof awning for large-span foundation pit excavation construction site, comprising two portal frames (1), characterized in that, The portal frame (1) is provided with a water storage tank (2) on one side, the portal frame (1) is rotatably connected with a rotating frame (3) in a symmetrical structure, the portal frame (1) is fixedly connected with an adjusting mechanism (4), the two portal frames (1) are provided with a top frame (5) between them, the top frame (5) is fixedly connected with a storage seat (6) on both sides, the storage seat (6) is provided with a dust-proof awning (7) inside, the top frame (5) is fixedly connected with a collecting frame (8) on both sides, the collecting frame (8) is provided with two awning washing brushes (9) in an up-down symmetrical structure, the collecting frame (8) is rotatably connected with a transmission mechanism (10) on one side, the dust-proof awning (7) is fixedly connected with a water collecting pipe (11) at the outer end, the storage seat (6) is rotatably connected with a reel (601) penetrating through, the reel (601) is fixedly connected with the dust-proof awning (7) at one end, the reel (601) is fixedly connected with a motor B (602) at the outer end, the motor B (602) is fixedly connected with the top frame (5), the motor B (602) is fixedly connected with a toothed disc (603) at the output end, the collecting frame (8) is fixedly connected with a sewage pipe (801) at the bottom end, two sliding grooves (802) are formed in the side close to the motor B (602) of the sewage pipe (801), a sliding sleeve (901) is slidably arranged at one end of the awning washing brush (9), the sliding sleeve (901) is fixedly connected with the inner wall of the sliding groove (802), the awning washing brush (9) is provided in a hollow structure, a plurality of spray holes are formed in the side close to the dust-proof awning (7) of the awning washing brush (9), a three-way hose is communicated between the two awning washing brushes (9), the other end of the three-way hose is fixedly connected with a pump body, the transmission mechanism (10) comprises a gear sleeve (1001), the gear sleeve (1001) is rotatably connected with the top frame (5), the gear sleeve (1001) is in meshing transmission with the toothed disc (603), a rotating disc (1002) is rotatably connected penetrating through in the gear sleeve (1001), a plurality of transmission teeth (1003) are rotatably connected in an annular structure on the rotating disc (1002), a tension spring (1004) is fixedly connected with the transmission teeth (1003), the other end of the tension spring (1004) is fixedly connected with the inner wall of the rotating disc (1002), the transmission teeth (1003) are in meshing transmission with the tooth groove of the inner wall of the gear sleeve (1001), a bevel gear A (1005) is fixedly connected with the outer end of the rotating disc (1002), a bevel gear B (1006) is in meshing transmission with one side of the bevel gear A (1005), a double-headed lever (1007) is fixedly connected with the bevel gear B (1006), the double-headed lever (1007) is rotatably connected with one end of the awning washing brush (9) at both ends, and the double-headed lever (1007) is rotatably connected with the awning washing brush (9).

2. The full-automatic dustproof awning for large-span foundation pit excavation construction site according to claim 1, characterized in that, The gantry (1) is provided with a hydraulic rod (101) fixedly connected and arranged, two adjusting connecting rods (102) are symmetrically and rotatably connected on the hydraulic rod (101), and the other end of the adjusting connecting rod (102) is rotatably connected with the rotating frame (3).

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

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

5. The full-automatic dustproof awning for large-span foundation pit excavation construction site according to claim 1, characterized in that, The water collecting pipe (11) is fixedly connected with a filter screen (1101) at the opening of one end of the dustproof curtain (7), a fixed frame (1102) is arranged on the lower side of the water collecting pipe (11), the fixed frame (1102) is in hollow structure, both ends of the fixed frame (1102) are rotatably connected with both ends of the water collecting pipe (11), a water guide hose is fixedly connected with one end of the fixed frame (1102), the other end of the water guide hose is communicated with the water storage tank (2), and adjusting columns B (1103) are fixedly connected with both ends of the fixed frame (1102), the adjusting columns B (1103) are in threaded connection with the threaded rod B (302).

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

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