A concrete curing and spraying device for subway engineering

Abstract

The application discloses a concrete curing and spraying device for subway engineering and relates to the technical field of concrete curing, which comprises a telescopic frame, a spraying mechanism rotatably connected to the front surface upper end of the telescopic frame, and a mounting mechanism rotatably connected to the rear surface lower end of the telescopic frame. The spraying mechanism comprises a rotating seat, a connecting block and a mounting cylinder. The rotating seat is fixedly installed on the upper surface front end of the telescopic frame. The connecting block is internally fixedly connected with the mounting cylinder. The front surface of the mounting cylinder is provided with a spraying element for spraying water mist. The inside of the mounting cylinder is provided with a shielding element for making the water mist uniform. The water flow flows out of the through holes on the surface of the spraying pipe and is uniformly sprayed on the surface of the concrete wall. Since the spraying pipe and the wall are attached, the through holes are also uniformly arranged. Compared with the traditional spraying method, the water flow can be uniformly spread on the surface of the concrete wall, and the water flow can be kept continuous, and the water flow will not be large at one time and small at another time.

Description

Technical Field

[0001] This invention relates to the field of concrete curing technology, and more specifically, to a concrete curing watering device for subway engineering. Background Technology

[0002] Concrete is an essential material in modern construction, and water curing is an indispensable part of the concrete construction process. Concrete contains a lot of water during construction, and this water plays a key role in the concrete's formation. However, if the water evaporates too quickly, it can lead to problems such as surface cracking, cracking, and reduced strength. Therefore, water curing is necessary during construction to control water evaporation and ensure the quality of the concrete.

[0003] In residential buildings, the main focus is on curing the horizontal concrete of the floor and the vertical concrete surfaces of the walls. Because the walls are relatively vertical, the water flow will fall due to gravity when spraying water. Also, because the amount of water cannot be too much, otherwise it will affect the curing effect, smaller water flows will converge and run down, making it difficult to maintain even watering for a long time, which in turn leads to cracking of the concrete walls. Summary of the Invention

[0004] In view of the shortcomings of existing technologies, such as water flow falling due to gravity when spraying water on relatively vertical walls, and the inability to spray too much water to avoid affecting the curing effect, smaller water flows tend to converge and flow down, making it difficult to maintain uniform watering and thus leading to insufficient concrete wall cracking, the present invention aims to provide a concrete curing watering device for subway engineering.

[0005] To achieve the above objectives, the present invention provides a concrete curing watering device for subway engineering, comprising: a telescopic frame;

[0006] A spraying mechanism is rotatably connected to the upper end of the front surface of the telescopic frame, and an installation mechanism is rotatably connected to the lower end of the rear surface of the telescopic frame.

[0007] The spraying mechanism includes a rotating seat, a connecting block, and a mounting cylinder. The rotating seat is fixedly installed on the front end of the upper surface of the telescopic frame. The mounting cylinder is fixedly connected inside the connecting block. The front surface of the mounting cylinder is provided with a water spraying component for spraying water mist, and the inside of the mounting cylinder is provided with a shielding component for making the water mist uniform.

[0008] Preferably, the telescopic frame is composed of an outer tube and an inner sliding rod.

[0009] The front surface of the outer tube has a linear array of positioning holes, and the front surface of the inner slide rod is elastically connected to a positioning rod that matches the positioning holes. During use, by pressing the elastically connected positioning rod and then sliding the inner slide rod to change the position of the positioning rod to different positions in the positioning holes, the length of the inner slide rod can be adjusted, thereby adjusting the length of the overall telescopic frame to adapt to concrete walls of different heights.

[0010] Preferably, the installation mechanism includes a mounting frame, the lower end of which is rotatably connected to a telescopic frame, and the rear surface of the telescopic frame is provided with a buckle that matches the mounting frame at a position above the mounting frame.

[0011] When not in use, as shown in the figure, the upper end of the mounting bracket is attached to the rear surface of the telescopic bracket via a buckle, and the mounting bracket is in a folded state to reduce space occupation. When in use, as shown in the figure, during use, the buckle is opened to release the upper limit of the mounting bracket.

[0012] Preferably, a water pump is also installed on the surface of the mounting bracket.

[0013] The mounting bracket has a mounting plate for holding and fixing the water pump. In the non-use state shown in the figure, the water pump is not mounted on the surface of the mounting plate. The water pump is mounted on the surface of the mounting plate when the water pump is turned into a horizontal state, and is used to supply water to the spraying mechanism.

[0014] Preferably, the water spraying component includes a water spraying pipe, which is fixedly installed on the front surface of the mounting cylinder, and both ends of the water spraying pipe are fixedly connected to connecting pipe heads, and both connecting pipe heads are connected to the water pump through hoses.

[0015] When not in use, the connecting pipe is not connected to the water pump. The connecting pipe will only be connected to the water pump after the water pump is installed. When in use, the water inside the water pump enters the sprinkler pipe through the connecting pipe. The sprinkler pipe has evenly distributed through holes on its surface, and the water flows out through the through holes and is evenly sprinkled on the surface of the concrete wall.

[0016] Preferably, the shielding component includes a water-immersing belt, and a take-up shaft is fixedly connected to the middle position inside the mounting cylinder. The water-immersing belt is wound around the surface of the take-up shaft, and a through groove is opened on the surface of the mounting cylinder on one side of the sprinkler pipe, with the end of the water-immersing belt extending out of the through groove.

[0017] The water-absorbing material can be a plastic film, straw mat, cotton cloth, or other water-absorbing material.

[0018] Preferably, one end of the mounting cylinder is threadedly connected to a sealing cap for sealing the mounting cylinder, the surface of the sealing cap is provided with a splicing hole, and the other end of the mounting cylinder is fixedly connected to a splicing protrusion that matches the position of the splicing hole.

[0019] Because the length of the installation cylinder is limited, when the width of the concrete needs to be greater than the size of the installation cylinder, multiple sets of devices need to be spliced ​​together to cure the concrete. By fitting two sets of installation cylinders close together, the splicing hole extends into the interior of the splicing protrusion to assist in positioning, so that the two sets of installation cylinders fit together. Magnetic blocks can also be attached to the interior of the splicing hole, and magnetic blocks can also be attached to the surface of the splicing protrusion. When they are close together, they are attracted and fixed by magnetic force, which can adapt to large areas of concrete surface.

[0020] Preferably, an inner mounting groove is provided inside the sealing cover and at the end of the mounting cylinder away from the sealing cover. A sliding plate is slidably connected inside the inner mounting groove, and the sliding plate is connected to the inner wall of the inner mounting groove through a return spring.

[0021] The surface of the inner mounting groove is connected to a connecting plate by a spring. The end of the connecting plate is fixedly connected to a mounting plate. A limit block is fixedly connected to the side of the mounting plate near the water-immersed belt.

[0022] The end of the connecting plate furthest from the mounting plate is sloped.

[0023] Preferably, the surface of the mounting plate is also fixedly connected to an adhesive block, which is installed at the connection between the connecting pipe head and the sprinkler pipe.

[0024] Preferably, both the rear surface of the mounting bracket and the lower end of the telescopic bracket are equipped with rollers, which can be used to adjust the placement position during use.

[0025] Beneficial effects: (1) During use, when not in use, the overall structure shrinks into a strip. At this time, the installation mechanism and the spraying mechanism are in a folded state, reducing the space occupied. Multiple sets can be stacked and stored. During use, the installation mechanism and the spraying mechanism extend out, which is convenient for subsequent maintenance of the vertical wall surface. Compared with the traditional sprinkler mechanism, it can be folded for easy storage when not in use, and can be unfolded to adapt to concrete walls of different sizes when in use.

[0026] (2) Water flows out from the through holes on the surface of the sprinkler pipe and is evenly sprayed on the surface of the concrete wall. Since the sprinkler pipe is attached to the wall and the through holes are evenly arranged, compared with the traditional sprinkling method, the water can be evenly sprayed on the surface of the concrete wall and the water flow can be kept continuous. There will be no situation where the water flow is sometimes large and sometimes small, thus maintaining the curing effect.

[0027] (3) By fitting two sets of mounting cylinders close together, the splicing hole extends into the interior of the splicing protrusion to assist in positioning, so that the two sets of mounting cylinders fit together, which can adapt to a large area of ​​concrete surface. The limiting block limits the two ends of the water-immersing strip, so that the two sets of water-immersing strips are kept as horizontal as possible, avoiding uneven water flow at the connection. When the concrete wall is narrow and only one set of equipment is needed for watering, this problem will not occur. Attached Figure Description

[0028] Figure 1 This is a perspective view of the folded version of the present invention.

[0029] Figure 2 For the present invention Figure 1 Another perspective view.

[0030] Figure 3 This is a three-dimensional view of the invention after it has been unfolded.

[0031] Figure 4 For the present invention Figure 3 A magnified view of a portion of point A in the middle.

[0032] Figure 5 For the present invention Figure 4 A magnified view of a section at point B in the middle.

[0033] Figure 6 This is a three-dimensional schematic diagram of the assembled parts of the present invention.

[0034] Figure 7 For the present invention Figure 6 A magnified view of a section at point C.

[0035] Figure 8 This is a partial structural diagram of the present invention.

[0036] Figure 9 For the present invention Figure 8 A magnified view of a section at point D.

[0037] Figure 10 This is a partial structural cross-sectional view of the present invention.

[0038] Figure 11 For the present invention Figure 10 A magnified view of a section at point E in the middle.

[0039] The components include: 1. Telescopic frame; 2. Mounting frame; 3. Rotating seat; 4. Mounting cylinder; 5. Water pump; 6. Connecting block; 7. Sealing cover; 8. Splicing hole; 9. Sprinkler pipe; 10. Connecting pipe head; 11. Immersion belt; 12. Mounting plate; 13. Adhesive block; 14. Limiting block; 15. Splicing protrusion; 16. Sliding plate; 17. Connecting plate; 18. Inner mounting groove. Detailed Implementation

[0040] Reference Figures 1 to 11 A concrete curing sprinkler system for subway construction, comprising a telescopic frame 1:

[0041] A spraying mechanism is rotatably connected to the upper end of the front surface of the telescopic frame 1, and an installation mechanism is rotatably connected to the lower end of the rear surface of the telescopic frame 1.

[0042] The spraying mechanism includes a rotating seat 3, a connecting block 6, and a mounting cylinder 4. The rotating seat 3 is fixedly installed on the front end of the upper surface of the telescopic frame 1. The mounting cylinder 4 is fixedly connected inside the connecting block 6. The front surface of the mounting cylinder 4 is provided with a water spraying component for spraying water mist, and the inside of the mounting cylinder 4 is provided with a shielding component for making the water mist uniform.

[0043] It should be noted that during use, when not in use, such as Figure 1 As shown, the overall structure shrinks into a strip shape. At this time, the installation mechanism and spraying mechanism are in a folded state, reducing the space occupied. Multiple sets can be stacked and stored. During use, such as Figure 3 As shown, the installation mechanism and spraying mechanism extend out, facilitating subsequent maintenance treatment of the vertical wall surface;

[0044] Compared to traditional sprinkler systems, it can be folded for easy storage when not in use, and unfolded to fit concrete walls of different sizes when in use.

[0045] Reference Figures 1 to 11 The telescopic frame 1 is composed of an outer tube and an inner sliding rod.

[0046] It should be noted that the front surface of the outer sleeve has linear arrayed positioning holes, and the front surface of the inner slide rod is elastically connected to a positioning rod that matches the positioning holes. During use, by pressing the elastically connected positioning rod and then sliding the inner slide rod to change the positioning rod to different positions in the positioning holes, the length of the inner slide rod can be adjusted, thereby adjusting the length of the overall telescopic frame 1 to adapt to concrete walls of different heights.

[0047] Reference Figures 1 to 11 The installation mechanism includes a mounting frame 2, the lower end of which is rotatably connected to a telescopic frame 1. The rear surface of the telescopic frame 1 is provided with a buckle that matches the mounting frame 2 at a position above the mounting frame 2.

[0048] It should be noted that, in the state of not being used, such as Figure 1 The upper end of mounting bracket 2 is attached to the rear surface of telescopic bracket 1 via a buckle. At this time, mounting bracket 2 is in a folded state to reduce space occupation. In the use state, such as... Figure 3 As shown, during use, opening the buckle releases the upper limit of the mounting bracket 2;

[0049] It should also be noted that a torsion spring is provided at the connection between the mounting frame 2 and the telescopic frame 1. The torsion spring is used to keep the mounting frame 2 in a horizontal state when the upper end of the mounting frame 2 is released from the limit.

[0050] Reference Figures 1 to 11 A water pump 5 is also installed on the surface of mounting bracket 2.

[0051] It should be noted that the surface of the mounting bracket 2 is equipped with a receiving plate to support and fix the water pump 5. Figure 1 When not in use, the water pump 5 is not installed on the surface of the receiving plate. The water pump 5 is installed on the surface of the receiving plate when the water pump 5 is turned into a horizontal position, so as to supply water to the spraying mechanism.

[0052] Reference Figures 1 to 11 The water sprinkler system includes a water sprinkler pipe 9, which is fixedly installed on the front surface of the mounting cylinder 4. Both ends of the water sprinkler pipe 9 are fixedly connected to a connecting pipe head 10, and both connecting pipe heads 10 are connected to the water pump 5 through a hose.

[0053] It should be noted that when not in use, the connecting pipe 10 is not connected to the water pump 5. Only after the water pump 5 is installed will the connecting pipe 10 be connected to the water pump 5. When in use, the water inside the water pump 5 enters the interior of the sprinkler pipe 9 through the connecting pipe 10. The surface of the sprinkler pipe 9 is evenly provided with through holes, and the water flows out from the through holes on the surface of the sprinkler pipe 9, and is evenly sprinkled on the surface of the concrete wall.

[0054] Because the sprinkler pipe 9 is attached to the wall and the through holes are evenly arranged, compared with the traditional sprinkler method, the water can be evenly sprayed on the concrete wall surface, and the water flow can be kept continuous without the water flow being too large or too small, thus maintaining the curing effect.

[0055] Reference Figures 1 to 11 The shielding component includes a water-immersing belt 11. A take-up shaft is fixedly connected to the middle position inside the mounting cylinder 4. The water-immersing belt 11 is wound around the surface of the take-up shaft. A through groove is opened on the side of the mounting cylinder 4 located on the sprinkler pipe 9. The end of the water-immersing belt 11 extends out of the through groove.

[0056] It should be noted that the water-soaking tape 11 can be made of water-soakable materials such as plastic film, straw mat, or cotton cloth.

[0057] It should also be noted that in the initial state, the water-soaking tape 11 is in a rolled-up state. During use, the water-soaking tape 11 can be pulled out and attached to the surface of the concrete. When the water flows out of the sprinkler pipe 9, the water will pass over the surface of the water-soaking tape 11 below, and the water-soaking tape 11 helps the water flow to adhere more evenly to the surface of the concrete.

[0058] Reference Figures 1 to 11 One end of the mounting cylinder 4 is connected by a threaded sealing cap 7 for sealing the mounting cylinder 4. The surface of the sealing cap 7 is provided with a splicing hole 8. The other end of the mounting cylinder 4 is fixedly connected with a splicing protrusion 15 that matches the position of the splicing hole 8.

[0059] It should be noted that, due to the limited length of the installation cylinder 4, when the width of the concrete needs to be greater than the size of the installation cylinder 4, multiple sets of devices need to be spliced ​​together to cure the concrete. By fitting two sets of installation cylinders 4 close together, the splicing hole 8 extends into the interior of the splicing protrusion 15 to assist in positioning, so that the two sets of installation cylinders 4 fit together. It should also be noted that magnetic blocks can also be attached inside the splicing hole 8, and magnetic blocks can also be attached to the surface of the splicing protrusion 15. When they are close together, they are attracted and fixed by magnetic force, which can adapt to large areas of concrete surface.

[0060] Reference Figures 1 to 11 The inner interior of the sealing cover 7 and the inner end of the mounting cylinder 4 away from the sealing cover 7 are both provided with an inner mounting groove 18. A sliding plate 16 is slidably connected inside the inner mounting groove 18. The sliding plate 16 is connected to the inner wall of the inner mounting groove 18 through a return spring.

[0061] A connecting plate 17 is connected to the surface of the inner mounting groove 18 by a spring. A mounting plate 12 is fixedly connected to the end of the connecting plate 17. A limit block 14 is fixedly connected to the side of the mounting plate 12 near the water-immersed belt 11.

[0062] The end of the connecting plate 17 away from the mounting plate 12 is a slope.

[0063] It should be noted that when the splicing hole 8 extends into the splicing protrusion 15, it will squeeze the inclined surface of the end of the connecting plate 17 away from the mounting plate 12, causing the connecting plate 17 to slide outward a certain distance and also move closer to the inward water-soaking strip 11. When the two sets of mounting cylinders 4 are close to each other for water spraying and curing, the extended water-soaking strip 11 may deflect, reducing the degree of contact with the wall surface and affecting the uniformity of water flow at the connection. Therefore, during the process of the connecting plate 17 sliding outward a certain distance and moving closer to the inward water-soaking strip 11, the limiting block 14 limits both ends of the water-soaking strip 11, so that the two sets of water-soaking strips 11 are kept as horizontal as possible to avoid uneven water flow at the connection. However, when the concrete wall is narrow and only one set of equipment is needed for water spraying, this problem will not occur.

[0064] Reference Figures 1 to 11 The surface of the mounting plate 12 is also fixedly connected to an adhesive block 13, which is installed at the connection between the connecting pipe head 10 and the sprinkler pipe 9.

[0065] It should be noted that, for ease of installation, both the connecting pipe head 10 and the sprinkler pipe 9 are plug-in type. During transportation, loosening is inevitable. Therefore, as the connecting plate 17 slides outward a certain distance and moves closer to the water-soaked belt 11 inward, the bonding block 13 also moves synchronously. The bonding block 13 is made of elastic rubber. During the movement, it will squeeze the connection between the connecting pipe head 10 and the sprinkler pipe 9 to increase the tightness of the connection and prevent it from falling off.

[0066] Reference Figures 1 to 11 Rollers are installed on the rear surface of the mounting bracket 2 and the lower end of the telescopic bracket 1.

[0067] It should be noted that the placement position can be adjusted using the rollers during use.

[0068] Working principle: During use, when not in use, the overall structure shrinks into a strip shape. At this time, the installation mechanism and the spraying mechanism are in a folded state, reducing the space occupied. Multiple sets can be stacked and stored. During use, the installation mechanism and the spraying mechanism extend, which is convenient for subsequent maintenance treatment of vertical walls. Compared with traditional sprinkler systems, it can be folded for easy storage when not in use and can be unfolded to adapt to concrete walls of different sizes when in use.

[0069] Water flows out from the through holes on the surface of the sprinkler pipe and is evenly sprayed on the surface of the concrete wall. Because the sprinkler pipe is attached to the wall and the through holes are evenly arranged, compared with the traditional sprinkler method, the water can be evenly sprayed on the surface of the concrete wall and the water flow can be kept continuous without the water flow being too large or too small, thus maintaining the curing effect.

[0070] By fitting two sets of mounting cylinders close together, the splicing holes extend into the interior of the splicing protrusions to assist in positioning. This allows the two sets of mounting cylinders to fit together, which can accommodate large areas of concrete surfaces. The limiting blocks limit the two ends of the immersion strip, keeping the two sets of immersion strips as horizontal as possible and avoiding uneven water flow at the connection point. This problem does not occur when the concrete wall surface is narrow and only one set of equipment is needed for watering.

[0071] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of this template.

Claims

1. A concrete curing watering device for subway engineering, characterized in that, Including telescopic frame (1): A spraying mechanism is rotatably connected to the upper end of the front surface of the telescopic frame (1), and an installation mechanism is rotatably connected to the lower end of the rear surface of the telescopic frame (1). The spraying mechanism includes a rotating seat (3), a connecting block (6), and an mounting cylinder (4). The rotating seat (3) is fixedly installed on the front end of the upper surface of the telescopic frame (1). The rotating seat (3) is rotatably connected to the connecting block (6). The mounting cylinder (4) is fixedly connected inside the connecting block (6). The front surface of the mounting cylinder (4) is provided with a water spraying component for spraying water mist, and the interior of the mounting cylinder (4) is provided with a shielding component for making the water mist uniform. When not in use, the overall structure retracts into a strip, and the installation mechanism and spraying mechanism are folded in place; during use, the installation mechanism and spraying mechanism extend to facilitate subsequent maintenance of the vertical wall surface. The water spraying component includes a water spraying pipe (9), which is fixedly installed on the front surface of the mounting cylinder (4); One end of the mounting cylinder (4) is connected by a threaded sealing cap (7) for sealing the mounting cylinder (4). The surface of the sealing cap (7) is provided with a splicing hole (8). The other end of the mounting cylinder (4) is fixedly connected with a splicing protrusion (15) that matches the position of the splicing hole (8). The shielding component includes a water-immersing belt (11), and a winding shaft is fixedly connected to the middle position inside the mounting cylinder (4). The water-immersing belt (11) is wound around the surface of the winding shaft, and a through groove is opened on the surface of the mounting cylinder (4) on one side of the sprinkler pipe (9). The end of the water-immersing belt (11) extends out of the through groove. The inner interior of the sealing cover (7) and the inner interior of the mounting cylinder (4) away from the sealing cover (7) are both provided with an inner mounting groove (18). A sliding plate (16) is slidably connected inside the inner mounting groove (18). The sliding plate (16) is connected to the inner wall of the inner mounting groove (18) through a return spring. The surface of the inner mounting groove (18) is connected to a connecting plate (17) by a spring. The end of the connecting plate (17) is fixedly connected to a mounting plate (12). A limit block (14) is fixedly connected to the side of the mounting plate (12) near the immersion belt (11). The end of the connecting plate (17) away from the mounting plate (12) is a slope.

2. The concrete curing sprinkler device for subway engineering according to claim 1, characterized in that, The telescopic frame (1) is composed of an outer tube and an inner sliding rod; The front surface of the outer sleeve is linearly arrayed with positioning holes, and the front surface of the inner slide rod is elastically connected with a positioning rod that matches the positioning holes. During use, by pressing the elastically connected positioning rod and then sliding the inner slide rod, the positioning rod is moved to the positioning holes at different positions to adjust the length of the inner slide rod, thereby adjusting the length of the overall telescopic frame (1) to adapt to concrete walls of different heights.

3. The concrete curing sprinkler device for subway engineering according to claim 1, characterized in that, The installation mechanism includes a mounting frame (2), the lower end of the mounting frame (2) is rotatably connected to the telescopic frame (1), and the rear surface of the telescopic frame (1) is provided with a buckle that matches the mounting frame (2) at a position above the mounting frame (2); When not in use, the upper end of the mounting bracket (2) is attached to the rear surface of the telescopic bracket (1) by means of a buckle. At this time, the mounting bracket (2) is in a folded state to reduce the space occupied. When in use, the buckle is opened to release the upper limit of the mounting bracket (2). A torsion spring is provided at the connection between the mounting frame (2) and the telescopic frame (1). The torsion spring is used to keep the mounting frame (2) in a horizontal state when the upper end of the mounting frame (2) is released from the limit.

4. A concrete curing sprinkler device for subway engineering according to claim 3, characterized in that, A water pump (5) is also installed on the surface of the mounting bracket (2); The mounting bracket (2) has a receiving plate for supporting and fixing the water pump (5). When not in use, the water pump (5) is not installed on the surface of the receiving plate. The water pump (5) is installed on the surface of the receiving plate when the receiving plate of the water pump (5) is turned into a horizontal state, so as to supply water to the spraying mechanism.

5. A concrete curing sprinkler system for subway engineering according to claim 4, characterized in that, Both ends of the sprinkler pipe (9) are fixedly connected to connecting pipe heads (10), and both connecting pipe heads (10) are connected to the water pump (5) through hoses; When not in use, the connecting pipe (10) is not connected to the water pump (5). Only after the water pump (5) is installed will the connecting pipe (10) be connected to the water pump (5). When in use, the water inside the water pump (5) enters the interior of the sprinkler pipe (9) through the connecting pipe (10). The surface of the sprinkler pipe (9) is evenly provided with through holes, and the water flows out from the through holes on the surface of the sprinkler pipe (9) and is evenly sprinkled on the surface of the concrete wall.

6. A concrete curing sprinkler device for subway engineering according to claim 5, characterized in that, The water-immersing strip (11) is a plastic film; In the initial state, the water-soaking tape (11) is in a wound state. During use, the water-soaking tape (11) is pulled out and attached to the surface of the concrete. When the water flows out of the sprinkler pipe (9), the water will pass over the surface of the water-soaking tape (11) below. The water-soaking tape (11) helps the water flow to adhere more evenly to the surface of the concrete.

7. A concrete curing sprinkler device for subway engineering according to claim 6, characterized in that, By fitting two sets of mounting cylinders (4) close together, the splicing hole (8) extends into the interior of the splicing protrusion (15) to assist in positioning, so that the two sets of mounting cylinders (4) fit together. A magnetic block is also fitted inside the splicing hole (8), and a magnetic block is fitted on the surface of the splicing protrusion (15). When they are close together, they are attracted and fixed by magnetic force.

8. A concrete curing sprinkler device for subway engineering according to claim 7, characterized in that, When the splicing hole (8) extends into the splicing protrusion (15), it will squeeze the inclined surface of the end of the connecting plate (17) away from the mounting plate (12), causing the connecting plate (17) to slide a distance to the outside and also move closer to the water-immersed strip (11) to the inside. The limiting block (14) limits the two ends of the water-immersed strip (11).

9. A concrete curing sprinkler device for subway engineering according to claim 8, characterized in that, The mounting plate (12) is also fixedly connected to a bonding block (13), which is installed at the connection between the connecting pipe head (10) and the sprinkler pipe (9); Both the connecting pipe head (10) and the sprinkler pipe (9) are plug-in type, and the bonding block (13) is made of elastic rubber material.

10. A concrete curing sprinkler device for subway engineering according to claim 3, characterized in that, Rollers are installed on the rear surface of the mounting bracket (2) and the lower end of the telescopic bracket (1).

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