A sunstroke-preventing dust-removing water spraying device for building construction

Abstract

The application discloses a kind of building construction with heatstroke prevention dusting sprinkler, it is related to building construction with heatstroke prevention dusting sprinkler technical field, the building construction with heatstroke prevention dusting sprinkler, the bottom of water storage tank is fixed with pulley, water pump is fixed in water storage tank, water pump outer wall is fixed with water suction pipe and water pipe no.1, water pipe no.1 rotatable seal connection has water pipe no.2, water pipe no.2 outer wall is fixed with partition, and water pipe no.2 sliding seal connection has water jet pipe, the building construction with heatstroke prevention dusting sprinkler, water pump starts pumping, water flow enters from water suction pipe, passes through water pipe no.1, water pipe no.2 and water jet pipe reaches water jet head, is sprayed by it, simultaneously starts motor, makes the gear no.1 on the motor rotation, drives meshed gear no.2 rotation, drives water pipe no.2 and water jet pipe to rotate, so that water flow is more evenly sprayed, solve the problem that the spraying range is smaller, and the dust removal efficiency is low.

Description

Technical Field

[0001] This invention relates to the technical field of water spraying devices for heatstroke prevention and dust suppression in building construction, specifically a water spraying device for heatstroke prevention and dust suppression in building construction. Background Technology

[0002] Construction sites are equipped with dust suppression and heat dissipation sprinkler systems. During construction, especially demolition work, a large amount of dust is often generated. To prevent this dust from spreading, construction sites are typically equipped with dust suppression sprinkler systems. These systems effectively reduce the surrounding temperature and eliminate airborne dust by spraying atomized water, thereby improving the construction environment.

[0003] In existing technologies, when construction site dust suppression sprinkler systems are in operation, dust floats in the water storage tank. When the water pump draws in water, some dust is also drawn in. The dust clumps together and causes blockage of the spray nozzles, thus reducing the amount of water sprayed and lowering the dust suppression effect. In view of this, we propose a construction site dust suppression sprinkler system. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a water spraying device for heatstroke prevention and dust suppression in building construction, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a water spraying device for heatstroke prevention and dust removal in construction, comprising a water storage tank, a pulley fixed at the bottom of the water storage tank, a water pump fixed inside the water storage tank, a suction pipe and a first water pipe fixed on the outer wall of the water pump, a second water pipe rotatably and sealed to the first water pipe, a partition plate fixed on the outer wall of the second water pipe, and a spray pipe slidably and sealed to the second water pipe, a motor fixed on the outer wall of the partition plate, a spray head fixed on the outer wall of the spray pipe, a rotating mechanism provided on the outer wall of the first water pipe, a swinging mechanism provided on the top of the spray pipe, and a water blocking mechanism provided on the outer wall of the spray pipe; The rotating mechanism includes gear one, gear two, a rectangular wedge block, a lifting disc, a spring, and a horizontal plate. Gear one is fixed to the output end of the motor, gear two is fixed to the outer wall of water pipe two and meshes with gear one, the rectangular wedge block is fixed to the outer wall of the spray head, and the lifting disc is fixed to the outer wall of the water tank and fits against the rectangular wedge block. The bottom of the spring is fixed to the outer wall of the spray pipe, and the top of the spring is fixed with a horizontal plate. The bottom of the horizontal plate is fixedly connected to the top of water pipe two. When the motor starts, gear one drives gear two to rotate, causing water pipe two to rotate, which in turn drives the closed and slidably connected spray pipe to rotate. The spray pipe drives the fixed spray head to rotate, causing the rectangular wedge block fixed to the spray head to move with the lifting disc fixed to the water tank. The block is squeezed by the lifting disc and reciprocates, causing the spray pipe to continuously strike the spray head while rotating.

[0006] According to the above technical solution, the swing mechanism includes a square inclined block, a rack, a gear No. 3, a hollow square frame, a small round shaft, a blade, a long round shaft, a limiting round hole, a limiting body, and a small round block. The square inclined block is slidably connected to the top of the water spray pipe and is attached to the outer wall of the horizontal plate. There are four square inclined blocks, with two square inclined blocks forming a group. The two groups of square inclined blocks are symmetrically arranged with the center line of the vertical direction of the water spray pipe as the axis of symmetry, and a return spring is fixed between the two groups of square inclined blocks. When the long inclined block is squeezed by the lifting disc, the water spray pipe moves upward, causing the slidably connected square inclined block to squeeze the horizontal plate. A spring is fixed under the horizontal plate, which causes the water spray pipe to return to its original position.

[0007] According to the above technical solution, the square inclined block is slidably connected to the top of the water spray pipe, and the square inclined block is attached to the outer wall of the horizontal plate. The rack is fixed to the outer wall of the square inclined block, and the rack meshes with gear number three. The small round shaft is fixed to the inner wall of gear number three. When the water spray pipe moves towards the horizontal plate, the square inclined block slidably connected to the water spray pipe is squeezed by the horizontal plate, causing the square inclined block to move in the opposite direction, driving the rack to move. The rack drives the small round shaft fixed on the meshing gear number three to make a swinging motion.

[0008] According to the above technical solution, the hollow square frame is fixed to the outer wall of the small round shaft, the long round shaft passes through and is rotatably connected to the outer wall of the hollow square frame, and the blade is fixed to the outer wall of the long round shaft; the small round shaft makes a swinging motion, which drives the hollow square frame to make a swinging motion.

[0009] According to the above technical solution, the limiting hole is opened on the inner wall of the hollow square frame, the limiting body is fixed on the outer wall of the long cylindrical shaft, and the limiting body fits into the limiting hole so that the limiting body can be stuck in the limiting hole to achieve the purpose of fixation.

[0010] According to the above technical solution, the small circular block is fixed to the outer wall of the limiting body, and the small circular block is slidably connected to the long cylindrical shaft. Pulling and rotating the small circular block causes the limiting body to slide within the hollow frame, fixing the limiting body in the limiting hole at a certain angle. The limiting body then drives the long cylindrical shaft to be fixed at a certain angle, allowing the blades to guide the airflow. As the spray head rotates, the hollow frame swings, and because there are blades on the hollow frame, the water vapor can be guided.

[0011] According to the above technical solution, the water blocking mechanism includes a long rotating shaft, a U-shaped frame, a gear No. 4, a water blocking plate, a corner block, and a striking cylinder. The long rotating shaft passes through and is rotatably connected to the inner wall of the water spray pipe, and the U-shaped frame is fixed to the outer wall of the rack.

[0012] According to the above technical solution, the fourth gear is fixed on the outer wall of the long rotating shaft and meshes with the rack, the water blocking plate is fixed on the outer wall of the long rotating shaft and is inside the spray pipe; the fourth gear drives the water blocking plate to rotate, and since the U-shaped frame slides on the outer wall of the rack, the U-shaped frame moves in the same direction as the rack.

[0013] According to the above technical solution, the corner block is fixed to the outer wall of the water spray pipe, the striking cylinder is slidably connected to the U-shaped frame, and the striking cylinder will fit with the corner block; the U-shaped frame moves back and forth with the rack, when the U-shaped frame moves to the corner block, the striking cylinder is squeezed by the corner block, and due to the rapid downward movement of the spring, while the water spray pipe is rotating, the rack drives the water blocking plate to rotate, so as to achieve the effect of intermittent water output.

[0014] This invention provides a water spraying device for heatstroke prevention and dust suppression in building construction. It has the following beneficial effects: 1. This invention, by setting up a rotating mechanism, allows water to enter through the suction pipe when the water pump starts pumping water. The water then passes through water pipe number one, water pipe number two, and the spray pipe to reach the spray head, where it is sprayed out. Simultaneously, the motor is activated, causing gear number one on the motor to rotate, which in turn rotates gear number two, causing water pipe number two and the spray pipe to rotate as well. This results in a more uniform water spray, solving the problems of small spray range and low dust removal efficiency. Through the cooperation of a rectangular inclined block, a lifting disc, a spring, and a horizontal plate, the rectangular inclined block on the spray head moves with the lifting disc and is squeezed by it, causing the spray head to vibrate back and forth, effectively shaking off accumulated dust and preventing blockage. This solves the problem that dust floating in the water tank at the construction site is sucked in by the water pump during operation, causing spray head blockage and reducing the amount of water mist sprayed.

[0015] 2. This invention, through the setting of a swing mechanism, when the rectangular inclined block is squeezed by the lifting disc, utilizes the cooperation of a spring, a horizontal plate, a square inclined block, a rack, a third gear, a hollow square frame, a small round shaft, and blades. Furthermore, when the water spray pipe moves towards the horizontal plate, the square inclined block, which is slidably connected to the water spray pipe, is squeezed by the horizontal plate, causing the square inclined block to move along the direction of the water spray pipe. This drives the rack to move. Due to the spring's reset, the square inclined block is no longer squeezed and resets, causing the rack to move back. At this time, the rack performs reciprocating motion, driving the small round shaft fixed on the meshing third gear to swing, thus diffusing the water mist sprayed from the water nozzle. This further improves the dust removal range of the water mist and solves the problem of limited demisting range of the water nozzle when there is too much dust. Through the cooperation of the limiting round hole, the limiting body, and the small round block, the angle of the blades can be adjusted, thereby adjusting according to the spraying range and improving spraying efficiency.

[0016] 3. This invention, through the setting of a water-blocking mechanism, enables the gear 4 to rotate when the rack drives the gear 4 to move. The long rotating shaft, U-shaped frame, gear 4, water-blocking plate, corner block, and striking cylinder work together to make gear 4 drive the water-blocking plate to rotate. Since the U-shaped frame slides on the outer wall of the rack, it moves in the same direction as the rack. The water-blocking plate is tangential to the inner wall of the spray pipe. Therefore, when the rack moves, the water-blocking plate rotates accordingly. This intermittent water blocking achieves pulse spraying, avoiding localized over-wetting and water accumulation, and reducing the risk of secondary dust generation. It intermittently blocks water flow, solving problems such as water accumulation, muddy ground, and hardening. The corner block and striking cylinder are designed so that when the U-shaped frame moves to the corner block, the striking cylinder is squeezed by the corner block, and due to the rapid downward movement of the spring, it strikes the top of the spray pipe, knocking off dust and other debris adhering to the spray pipe. This debris is then flushed away with the water flow, preventing the long-term accumulation of dust in the spray pipe, which can easily clog the spray head. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a schematic cross-sectional view of the present invention; Figure 4 This is a partial structural diagram of the present invention; Figure 5 This is a partial cross-sectional view of the present invention; Figure 6 This is a partial structural diagram of the present invention; Figure 7 For the present invention Figure 4 Enlarged schematic diagram of structure A; Figure 8 For the present invention Figure 5 An enlarged schematic diagram of the B structure.

[0018] In the diagram: 1. Water tank; 2. Pulley; 3. Water pump; 4. Suction pipe; 5. Water pipe No. 1; 6. Water pipe No. 2; 7. Spray pipe; 8. Divider plate; 9. Motor; 10. Spray head; 11. Rotating mechanism; 111. Gear No. 1; 112. Gear No. 2; 113. Rectangular inclined block; 114. Lifting disc; 115. Spring; 116. Horizontal plate; 12. Swinging mechanism; 123. Square 124. Inclined block; 125. Rack; 126. Gear No. 3; 127. Hollow square frame; 128. Small round shaft; 129. Blade; 120. Long round shaft; 1210. Limiting round hole; 1211. Limiting body; 1212. Small round block; 13. Water blocking mechanism; 131. Long rotating shaft; 132. U-shaped frame; 133. Gear No. 4; 134. Water blocking plate; 135. Corner block; 136. Striking cylinder. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-8 One embodiment of the present invention is: a water spraying device for heatstroke prevention and dust removal in construction, including a water storage tank 1, a pulley 2 fixed at the bottom of the water storage tank 1, a water pump 3 fixed inside the water storage tank 1, a suction pipe 4 and a first water pipe 5 fixed on the outer wall of the water pump 3, a second water pipe 6 rotatably and sealed to the first water pipe 5, a partition plate 8 fixed on the outer wall of the second water pipe 6, a spray pipe 7 slidably and sealed to the second water pipe 6, a motor 9 fixed on the outer wall of the partition plate 8, a spray head 10 fixed on the outer wall of the spray pipe 7, and a rotating mechanism 11 provided on the outer wall of the first water pipe 5; The rotating mechanism 11 includes gear 111, gear 212, rectangular wedge block 113, lifting disc 114, spring 115, and horizontal plate 116. Gear 111 is fixed to the output end of motor 9, gear 212 is fixed to the outer wall of water pipe 26 and meshes with gear 111, rectangular wedge block 113 is fixed to the outer wall of spray head 10, lifting disc 114 is fixed to the outer wall of water tank 1 and fits against rectangular wedge block 113, the bottom of spring 115 is fixed to the outer wall of spray pipe 7, the top of spring 115 is fixed with horizontal plate 116, and the bottom of horizontal plate 116 is fixedly connected to the top of water pipe 26.

[0021] When water pump 3 starts pumping water, the water flows in through suction pipe 4, through water pipe 1 5, water pipe 2 6, and spray pipe 7, and reaches spray head 10, where it is sprayed out. At the same time, motor 9 is started, causing gear 1 111 on motor 9 to rotate, which drives gear 2 112 to rotate, which in turn drives water pipe 2 6 and spray pipe 7 to rotate, making the water flow spray more even and solving the problems of small spray range and low dust removal efficiency. Through the cooperation of the rectangular inclined block 113, the lifting disc 114, the spring 115, and the horizontal plate 116, the rectangular inclined block 113 on the water nozzle 10 moves with the lifting disc 114 and is squeezed by the lifting disc 114, causing the water nozzle 10 to vibrate back and forth, effectively shaking off the accumulated dust and preventing blockage. This solves the problem that when dust floating in the water storage tank 1 is sucked up by the water pump 3 during operation, it will cause the water nozzle 10 to become blocked, resulting in less water mist being sprayed.

[0022] In this embodiment, during operation: when water pump 3 starts pumping water, water enters through suction pipe 4, passes through water pipe 5, water pipe 6, and spray pipe 7, and reaches spray head 10, where it is sprayed out. Simultaneously, motor 9 is started, causing gear 111 on motor 9 to rotate, which in turn drives gear 112 to rotate, causing water pipe 6 and spray pipe 7 to rotate, ensuring even water spraying. When motor 9 starts, it drives gear 111 to rotate, which in turn drives gear 112 to rotate, which in turn drives the fixed water pipe 6, spray pipe 7, and spray head. 10 and the rectangular inclined block 113 rotate together. When the rectangular inclined block 113 rotates to the point where the inclined surface contacts the protrusion of the lifting disc 114, the rectangular inclined block 113 will be squeezed and move upward. When the rectangular inclined block 113 moves upward, it can drive the water spray pipe 7 to move upward, causing the spring 115 to be compressed. When the rectangular inclined block 113 rotates to the point where it is no longer squeezed by the protrusion of the lifting disc 114, the spring 115 is in a compressed state, which can cause the water spray pipe 7 to move downward and reset. The up and down movement of the water spray pipe 7 can drive the water spray head 10 to move up and down.

[0023] Please see Figures 1-8Based on the above embodiments, in another embodiment of the present invention, a swing mechanism 12 is provided at the top of the water spray pipe 7, and a water blocking mechanism 13 is provided on the outer wall of the water spray pipe 7. The swing mechanism 12 includes a square inclined block 123, a rack 124, a gear 125, a hollow square frame 126, a small round shaft 127, a blade 128, a long round shaft 129, a limiting round hole 1210, a limiting body 1211, and a small round block 1212. The square inclined block 123 is slidably connected to the top of the water spray pipe 7 and is attached to the outer wall of the horizontal plate 116. The rack 124 is fixed to the outer wall of the square inclined block 123 and meshes with the gear 125. The small round shaft 127 is fixed to the inner wall of the gear 125. The hollow square frame 126... 26 is fixed to the outer wall of the rack 124. The long cylindrical shaft 129 passes through and is slidably connected to the outer wall of the hollow square frame 126. The blade 128 is fixed to the outer wall of the long cylindrical shaft 129. The limiting hole 1210 is opened in the inner wall of the hollow square frame 126. The limiting body 1211 is slidably connected to the outer wall of the long cylindrical shaft 129. The limiting body 1211 fits with the limiting hole 1210. The small round block 1212 is fixed to the outer wall of the limiting body 1211. The small round block 1212 is slidably connected to the long cylindrical shaft 129. Four square inclined blocks 123 are provided. Two square inclined blocks 123 form a group. The two groups of square inclined blocks 123 are symmetrically arranged with the center line of the vertical direction of the water spray pipe 7 as the axis of symmetry. A return spring is fixed between the two groups of square inclined blocks 123. Furthermore, when the rectangular inclined block 113 is squeezed by the lifting disc 114, through the cooperation of the spring 115, the horizontal plate 116, the square inclined block 123, the rack 124, the gear 125, the hollow square frame 126, the small round shaft 127, and the blade 128, and when the water spray pipe 7 moves towards the horizontal plate 116, the square inclined block 123, which is slidably connected on the water spray pipe 7, is squeezed by the horizontal plate 116, causing the square inclined block 123 to move along the direction of the water spray pipe 7, which in turn causes the rack 124 to move. Due to the reset of the spring 115, the square inclined block 123 is no longer squeezed and resets, and the rack 124 will move back. At this time, the rack 124 performs reciprocating motion, and the rack 124 drives the small round shaft 127 fixed on the meshing gear 125 to perform swaying motion, which diffuses the water mist sprayed from the water spray head 10, further improving the range of water mist dust removal and solving the problem that the demisting range of the water spray head 10 is limited when there is too much dust. By using the combination of the limiting hole 1210, the limiting body 1211 and the small round block 1212, the angle of the blade 128 can be adjusted, thereby adjusting according to the spraying range and improving the spraying efficiency.

[0024] The water-blocking mechanism 13 includes a long rotating shaft 131, a U-shaped frame 132, a gear 133, a water-blocking plate 134, a corner block 135, and a striking cylinder 136. The long rotating shaft 131 is rotatably connected to the inner wall of the water spray pipe 7. The U-shaped frame 132 is fixed to the outer wall of the rack 124. The gear 133 is fixed to the outer wall of the long rotating shaft 131 and meshes with the rack 124. The water-blocking plate 134 is fixed to the outer wall of the long rotating shaft 131 and is inside the water spray pipe 7. The corner block 135 is fixed to the outer wall of the water spray pipe 7. The striking cylinder 136 is slidably connected to the U-shaped frame 132 and will fit against the corner block 135. A connecting spring is fixed to the top of the U-shaped frame 132, and the top of the connecting spring is fixed to the bottom of the top protrusion of the striking cylinder 136.

[0025] When rack 124 drives gear 4 133 to move, through the cooperation of long rotating shaft 131, U-shaped frame 132, gear 4 133, water blocking plate 134, corner block 135, and striking cylinder 136, gear 4 133 can drive water blocking plate 134 to rotate. Since U-shaped frame 132 slides on the outer wall of rack 124, U-shaped frame 132 moves in the same direction as rack 124. Water blocking plate 134 is tangent to the inner wall of spray pipe 7. Therefore, when rack 124 moves, water blocking plate 134 rotates accordingly. Pulse spraying is achieved through intermittent water blocking, avoiding local over-wetting and water accumulation, and reducing the risk of secondary dust from the source. It can intermittently block water flow and solve problems such as water accumulation, ground mud and hardening. The corner block 135 and the striking cylinder 136 are designed so that when the U-shaped frame 132 moves to the corner block 135, the striking cylinder 136 is squeezed by the corner block 135, and the spring 115 moves downward quickly, striking the top of the water spray pipe 7. This knocks off the dust and other debris attached to the water spray pipe 7 and flushes it away with the water flow, preventing the water spray pipe 7 from accumulating dust and other debris for a long time. Accumulated dust and other debris can easily cause the water spray head 10 to become clogged.

[0026] In this embodiment, when the water spray pipe 7 moves upward, it drives the square inclined block 123 to move upward. When the square inclined block 123 moves upward and contacts the horizontal plate 116, it will be subjected to a squeezing force and move, causing the return spring to stretch. The square inclined block 123 drives the rack 124 to move away from the horizontal plate 116, causing the rack 124 to move on the gear 125, which will drive the gear 125 to rotate. When the gear 125 rotates, it will drive the small round shaft 127 to rotate, thereby causing the hollow square frame 126 to swing. And when the water spray pipe 7 moves downward, it will cause the square inclined block 123 to move upward. 23 is not subject to compressive force. Because the return spring is in a stretched state, it can drive the square inclined block 123 to return to its original position, and cause the rack 124 to return to its original position on the gear 125, thereby causing the hollow square frame 126 to return to its original position. This can drive the blade 128 on the hollow square frame 126 to swing back and forth. When the limiting body 1211 fixedly connected to the small round block 1212 is manually pulled out from the limiting round hole 1210 opened in the hollow square frame 126 and rotated, the blade 128 is driven to rotate, and the position of the blade 128 is adjusted. After adjustment, the blade 128 can be fixed by inserting the limiting body 1211 into the limiting round hole 1210 opened in the hollow square frame 126.

[0027] When the rack 124 moves, it moves on gear 4 133, which drives the long rotating shaft 131 and the water-blocking plate 134 to rotate. When the square inclined block 123 moves, it drives the U-shaped frame 132 to move, which in turn moves the striking cylinder 136. The striking cylinder 136 moves to the inclined surface of the corner block 135, causing it to move upward and stretch the connecting spring. When the rack 124 drives the U-shaped frame 132 to reset, the striking cylinder 136 is not under pressure, and with the help of the connecting spring, it can move downward to strike the water spray pipe 7.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water spraying device for heatstroke prevention and dust suppression in construction, comprising a water storage tank (1), characterized in that: The bottom of the water storage tank (1) is fixed with a pulley (2), the water storage tank (1) is fixed with a water pump (3), the water pump (3) is fixed with a suction pipe (4) and a water pipe No. 1 (5) on the outer wall, the water pipe No. 1 (5) is rotatably sealed to a water pipe No. 2 (6), the water pipe No. 2 (6) is fixed with a partition plate (8), and the water pipe No. 2 (6) is slidably sealed to a spray pipe (7), the partition plate (8) is fixed with a motor (9), the spray pipe (7) is fixed with a spray head (10), the water pipe No. 1 (5) is provided with a rotating mechanism (11) to increase the spraying range on the outer wall, and the spray pipe (7) is provided with a swing mechanism (12) at the top. The rotating mechanism (11) includes gear 1 (111), gear 2 (112), rectangular wedge block (113), lifting disc (114), spring (115) and horizontal plate (116). Gear 1 (111) is fixed to the output end of motor (9). Gear 2 (112) is fixed to the outer wall of water pipe 2 (6) and meshes with gear 1 (111). Rectangular wedge block (113) is fixed to the outer wall of spray head (10). Lifting disc (114) is fixed to the outer wall of water storage tank (1) and fits against rectangular wedge block (113). The bottom of spring (115) is fixed to the outer wall of spray pipe (7). The top of spring (115) is fixed with horizontal plate (116). The bottom of horizontal plate (116) is fixedly connected to the top of water pipe 2 (6).

2. The water spraying device for heatstroke prevention and dust suppression in building construction according to claim 1, characterized in that: The swing mechanism (12) includes a square inclined block (123), a rack (124), a gear No. 3 (125), a hollow square frame (126), a small round shaft (127), a blade (128), a long round shaft (129), a limiting round hole (1210), a limiting body (1211), and a small round block (1212). The square inclined block (123) is slidably connected to the top of the water spray pipe (7), and the square inclined block (123) is attached to the outer wall of the horizontal plate (116). There are four square inclined blocks (123), two square inclined blocks (123) form a group, and the two groups of square inclined blocks (123) are symmetrically arranged with the center line of the vertical direction of the water spray pipe (7) as the axis of symmetry. A return spring is fixed between the two groups of square inclined blocks (123).

3. A water spraying device for heatstroke prevention and dust suppression in building construction according to claim 2, characterized in that: The rack (124) is fixed to the outer wall of the square inclined block (123), and the rack (124) meshes with gear No. 3 (125). The small round shaft (127) is fixed to the inner wall of gear No. 3 (125).

4. A water spraying device for heatstroke prevention and dust suppression in building construction according to claim 2, characterized in that: The hollow square frame (126) is fixed to the outer wall of the small round shaft (127), the long round shaft (129) is rotatably connected to the outer wall of the hollow square frame (126), and the blade (128) is fixed to the outer wall of the long round shaft (129).

5. A water spraying device for heatstroke prevention and dust suppression in building construction according to claim 2, characterized in that: The limiting hole (1210) is opened on the inner wall of the hollow square frame (126), the limiting body (1211) is fixed on the outer wall of the long cylindrical shaft (129), and the limiting body (1211) fits into the limiting hole (1210).

6. A water spraying device for heatstroke prevention and dust suppression in building construction according to claim 2, characterized in that: The small round block (1212) is fixed on the outer wall of the limiting body (1211), and the small round block (1212) is slidably connected to the long round shaft (129).

7. A water spraying device for heatstroke prevention and dust suppression in building construction according to claim 1, characterized in that: The outer wall of the water spray pipe (7) is provided with a water blocking mechanism (13). The water blocking mechanism (13) includes a long rotating shaft (131), a U-shaped frame (132), a gear No. 4 (133), a water blocking plate (134), a corner block (135), and a striking cylinder (136). The long rotating shaft (131) passes through and is rotatably connected to the inner wall of the water spray pipe (7). The U-shaped frame (132) is fixed to the outer wall of the rack (124).

8. A water spraying device for heatstroke prevention and dust suppression in building construction according to claim 7, characterized in that: The fourth gear (133) is fixed to the outer wall of the long rotating shaft (131) and meshes with the rack (124), and the water-blocking plate (134) is fixed to the outer wall of the long rotating shaft (131).

9. A water sprinkler system for heatstroke prevention and dust suppression in building construction according to claim 8, characterized in that: The corner block (135) is fixed to the outer wall of the water spray pipe (7), the striking cylinder (136) is slidably connected to the U-shaped frame (132), the top of the U-shaped frame (132) is fixed with a connecting spring, and the top of the connecting spring is fixed to the bottom of the top protrusion of the striking cylinder (136).

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