Spraying device for maintenance of precast beam

Abstract

The invention discloses a precast beam maintenance spraying device, and relates to the field of maintenance devices, the precast beam maintenance spraying device comprises a base water tank, a water tank top cover, a first support and a second support, the water tank top cover is fixedly mounted on the top surface of the base water tank, the first support and the second support are placed on the outer side of the base water tank, and the first support is located on one side of the second support. According to the precast beam maintenance spraying device, comprehensive spraying can be carried out without side spraying heads, the mounting number of the spraying heads is reduced, unfolding is carried out through water pressure, the structure is simple, operation is convenient, comprehensive spraying maintenance of a precast beam is more convenient, the water mist spraying angle of the water mist spraying heads is adjusted, and the maintenance efficiency is improved. The spraying maintenance device can conduct spraying maintenance on the bevel face of the precast beam body, so that the precast beam with the bevel face can also be subjected to comprehensive spraying maintenance, the adjustable range of spraying of water mist is wider, the spraying maintenance device is used in cooperation with precast beam bodies of different shapes for spraying maintenance, and the application range of the device is further widened.

Description

Technical Field

[0001] The invention relates to the field of curing devices, and in particular to a prefabricated beam curing spray device. Background Art

[0002] The precast beam curing spray device is a device specially used for the curing of precast beams. It cures the precast beams by spraying water mist or curing agent to improve their strength and durability. It is widely used in precast beam processing occasions. The Chinese patent with the publication number of "CN108972857A" discloses "a prefabricated beam automatic maintenance spray device, including a water supply system, a pipeline, a nozzle and a timing valve, the timing valve includes a ball valve and a shell and a box body, the shell has a rotating shaft, and the rotating shaft is equipped with an impeller and a driving wheel". Although it can achieve the effect of "the present invention realizes automatic closing, realizes both water conservation and full spraying effect", when the device is used, water mist is sprayed out by the nozzle to maintain the prefabricated beam, and the nozzle is a fixed installation structure, which can only move in a single direction to achieve the water mist spraying effect, and the spray on different surfaces At the same time, only the number of nozzles can be increased. Nozzles installed in one direction cannot perform comprehensive spraying. At the same time, as the requirements of buildings increase, the shape requirements of prefabricated beams are also gradually increased. When spraying and curing prefabricated beams with various slopes and inclinations, a single fixed-angle nozzle cannot spray water mist onto the prefabricated beams in a comprehensive manner, resulting in the inclination and inclination of the prefabricated beams not being maintained, thereby reducing the curing effect. In addition, when adding the angle adjustment mechanism of the nozzle, too many adjustment mechanisms lead to troublesome operation and increased volume, which also affects the spray curing use of the nozzle, making the device unsuitable for spray curing of prefabricated beams of different shapes. Summary of the invention

[0003] The main purpose of the present invention is to provide a prefabricated beam maintenance spray device, which can effectively solve the technical problems raised by the background technology.

[0004] To achieve the above object, the technical solution adopted by the present invention is: A prefabricated beam maintenance spray device comprises a base water tank, a water tank top cover, a first bracket and a second bracket, wherein the water tank top cover is fixedly mounted on the top surface of the base water tank, the first bracket and the second bracket are placed on the outside of the base water tank, the first bracket is located on one side of the second bracket, a driving screw is movably mounted between the first bracket and the second bracket, a movable threaded sleeve is threadedly mounted on the outer side of the driving screw, a rotating clamp is integrally formed at the lower end of the movable threaded sleeve, a rotating structure is movably mounted at the bottom of the rotating clamp, two mounting columns are movably mounted at the lower end of the rotating structure, A synchronous gear is fixedly installed on the lower end of the mounting column, and a top water spray seat is movably connected to the lower end of the synchronous gear, and a top joint is fixedly installed on the outer side of the top water spray seat, and fixed sleeve rods are fixedly installed on opposite sides of the two mounting columns, and a guide structure is fixedly installed on the outer sides of the fixed sleeve rod and the top joint, and a telescopic rod is movably installed on the end of the fixed sleeve rod away from the mounting column, and a bottom water spray seat is fixedly installed on the lower end of the telescopic rod, and a bottom joint is fixedly installed on the outer side of the bottom water spray seat, and water mist nozzles are fixedly installed on one end of the bottom water spray seat and the lower end of the top water spray seat.

[0005] As a further solution of the present invention, up and down slope plates are fixedly installed on both sides of the base water tank, two rows of water holes are opened on the top surface of the water tank top cover, a bearing plate is arranged above the water tank top cover, and a plurality of movable wheels placed above the water tank top cover are movably installed at the front and rear ends of the bearing plate, and a prefabricated beam body is placed above the bearing plate.

[0006] As a further solution of the present invention, a water suction pipe is fixedly installed at the front end of the base water tank, a water spray pump is fixedly installed at the front end of the water suction pipe, a water spray joint is fixedly installed at the output port of the water spray pump, a plurality of water spray delivery pipes are fixedly installed at the upper end of the water spray joint, and one end of the water spray delivery pipe away from the water spray joint is fixedly connected to the top joint and the bottom joint.

[0007] As a further solution of the present invention, a driving motor is fixedly installed on one side of the top of the first bracket, a rotating mounting seat is fixedly installed on one side of the top of the second bracket, one end of the driving screw is movably connected to the rotating mounting seat, the rotating shaft of the driving motor is fixedly connected to the other end of the driving screw, a guide rod is fixedly installed on the upper end of the driving screw between the first bracket and the second bracket, and a guide sleeve is fixedly installed on the upper end of the movable threaded sleeve, and the guide sleeve is sleeved on the outside of the guide rod.

[0008] As a further solution of the present invention, the rotating structure includes a rotating suspension column, an adjusting rod, a steel ball slot and a spring steel ball. The rotating suspension column is movably installed on the inner side of a rotating clamping ring, the adjusting rod is welded to the outer side of the rotating suspension column, a plurality of steel ball slots are opened on the top center plane of the rotating suspension column, and the spring steel ball is movably installed inside the rotating clamping ring.

[0009] As a further solution of the present invention, the rotating suspension column rotates around the rotating clamp ring, the spring steel ball is embedded in the steel ball clamping groove for matching connection, and the two mounting columns are movably installed at the lower end of the rotating suspension column.

[0010] As a further solution of the present invention, the top water spray seat is located below the fixed sleeve rod, the two synchronous gears are meshed and connected, and the two mounting columns rotate synchronously through the synchronous gears.

[0011] As a further solution of the present invention, the flow guide structure includes a flow guide joint, a flow guide pipe and a switch valve. The flow guide joint is fixedly installed on the outside of the fixed sleeve rod, the flow guide pipe is fixedly installed at one end of the flow guide joint, and the switch valve is movably installed at the outside center of the flow guide pipe.

[0012] As a further solution of the present invention, the lower end of the diversion pipe is connected with the top joint, and the diversion pipe is connected with the interior of the fixed sleeve rod through the diversion joint. The fixed sleeve rod and the telescopic rod are both arranged in an arc shape and concentrically, and the telescopic rod is inserted into the fixed sleeve rod for telescopic movement.

[0013] As a further solution of the present invention, the water mist nozzles are located outside the prefabricated beam body, and the water mist nozzles on both sides are symmetrically arranged and installed.

[0014] Compared with the prior art, the present invention has the following beneficial effects: when it is necessary to spray the side of the prefabricated beam body, the bottom water spray seats on both sides are expanded in an arc shape, and then the bottom water spray seats and water mist nozzles on both sides are moved to both sides of the prefabricated beam body to spray and maintain the side of the prefabricated beam body, and the side spray can be fully sprayed without the need for side nozzles, which reduces the number of nozzles installed, and is deployed by water pressure, with a simple structure and convenient operation, making it more convenient to use the full spray maintenance of the prefabricated beam; When the spray angle of the water mist nozzle needs to be adjusted, the two mounting columns and the fixed sleeve rod are rotated synchronously to change the angle of the water mist nozzle below to adjust the spray angle of the water mist nozzle. The bevel surface of the prefabricated beam body can be sprayed for maintenance, so that the prefabricated beams on the bevel surface can also be fully sprayed for maintenance, thereby improving the maintenance effect of the device; When it is necessary to adjust the overall direction of the spray of the water mist nozzle, adjust the angle of the rotating suspension column to adjust the overall direction of the water mist nozzle below, and then cooperate with the expansion and angle adjustment of the water mist nozzles on both sides to make the water mist nozzle spray water mist in multiple directions and angles. The adjustable range of water mist spray is wider, and it can be used for spray maintenance on prefabricated beam bodies of different shapes, further improving the application scope of the device. At the same time, the structure is simple and the operation is convenient, so the device can be used for spray maintenance on prefabricated beams of various shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1This is a schematic diagram of the overall structure of a prefabricated beam maintenance spray device of the present invention; Figure 2 It is an enlarged view of a base water tank in a precast beam maintenance spray device of the present invention; Figure 3 It is an enlarged view of the first bracket and the second bracket in a prefabricated beam maintenance spray device of the present invention; Figure 4 This is a structural diagram of a prefabricated beam maintenance spray device of the present invention in which a telescopic rod is retracted into a fixed sleeve rod; Figure 5 This is a structural diagram of a prefabricated beam maintenance spray device of the present invention after the telescopic rod is expanded; Figure 6 It is an enlarged view of a fixed sleeve rod in a prefabricated beam maintenance spray device of the present invention; Figure 7 It is a sectional diagram of a rotating clamp ring in a precast beam maintenance spray device of the present invention; Figure 8 The present invention is a structural diagram of a fixed sleeve rod and a rotating hanging column in a prefabricated beam maintenance spray device after rotation.

[0016] In the figure: 1, base water tank; 2, water tank top cover; 3, water permeable hole; 4, up and down slope plate; 5, water pump; 6, water spray pump; 7, water spray joint; 8, water spray delivery pipe; 9, first bracket; 10, second bracket; 11, drive motor; 12, rotating mounting seat; 13, drive screw; 14, guide rod; 15, movable threaded sleeve; 16, guide sleeve; 17, rotating clamp ring; 18, rotating structure; 19, rotating sling; 20 , adjusting rod; 21, steel ball slot; 22, spring steel ball; 23, mounting column; 24, synchronous gear; 25, top water spray seat; 26, top joint; 27, fixed sleeve rod; 28, diversion structure; 29, diversion joint; 30, diversion pipeline; 31, switch valve; 32, telescopic rod; 33, bottom water spray seat; 34, bottom joint; 35, water mist nozzle; 36, bearing plate; 37, moving wheel; 38, prefabricated beam body. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0018] like Figure 1-Figure 8As shown, a prefabricated beam maintenance spray device includes a base water tank 1, a water tank top cover 2, a first bracket 9 and a second bracket 10, the water tank top cover 2 is fixedly installed on the top surface of the base water tank 1, the first bracket 9 and the second bracket 10 are placed on the outside of the base water tank 1, the first bracket 9 is located on one side of the second bracket 10, a driving screw 13 is movably installed between the first bracket 9 and the second bracket 10, a movable threaded sleeve 15 is threadedly installed on the outer side of the driving screw 13, a rotating clamp 17 is integrally formed at the lower end of the movable threaded sleeve 15, a rotating structure 18 is movably installed at the bottom of the rotating clamp 17, and two mounting columns 23 are movably installed at the lower end of the rotating structure 18, and the installation A synchronous gear 24 is fixedly installed at the lower end of the column 23, and a top water spray seat 25 is movably connected to the lower end of the synchronous gear 24, and a top joint 26 is fixedly installed on the outer side of the top water spray seat 25. Fixed sleeve rods 27 are fixedly installed on the opposite sides of the two mounting columns 23, and a guide structure 28 is fixedly installed on the outer sides of the fixed sleeve rods 27 and the top joint 26. A telescopic rod 32 is movably installed on one end of the fixed sleeve rod 27 away from the mounting column 23, and a bottom water spray seat 33 is fixedly installed on the lower end of the telescopic rod 32. A bottom joint 34 is fixedly installed on the outer side of the bottom water spray seat 33, and a water mist nozzle 35 is fixedly installed on one end of the bottom water spray seat 33 and the lower end of the top water spray seat 25.

[0019] In this embodiment, up and down slope plates 4 are fixedly installed on both sides of the base water tank 1, and the up and down slope plates 4 act as a slope, so that the moving wheels 37 can move from the up and down slope plates 4 to the water tank top cover 2. Two rows of water permeable holes 3 are opened on the top surface of the water tank top cover 2. The water permeable holes 3 can allow dripping water to pass through into the base water tank 1 for collection. A supporting plate 36 is arranged above the water tank top cover 2. The front and rear ends of the supporting plate 36 are movably installed with multiple moving wheels 37 placed above the water tank top cover 2. A prefabricated beam body 38 is placed above the supporting plate 36, and the prefabricated beam body 38 is placed by the supporting plate 36.

[0020] In this embodiment, a water suction pipe 5 is fixedly installed at the front end of the base water tank 1, a water spray pump 6 is fixedly installed at the front end of the water suction pipe 5, a water spray joint 7 is fixedly installed at the output port of the water spray pump 6, and a plurality of water spray delivery pipes 8 are fixedly installed at the upper end of the water spray joint 7. The end of the water spray delivery pipe 8 away from the water spray joint 7 is fixedly connected to the top joint 26 and the bottom joint 34. The water spray pump 6 draws water out of the base water tank 1 through the water suction pipe 5 and delivers it to the water spray joint 7 and the water spray delivery pipe 8.

[0021] In this embodiment, a driving motor 11 is fixedly installed on one side of the top of the first bracket 9, a rotating mounting seat 12 is fixedly installed on one side of the top of the second bracket 10, one end of the driving screw 13 is movably connected to the rotating mounting seat 12, and the rotating shaft of the driving motor 11 is fixedly connected to the other end of the driving screw 13. A guide rod 14 is fixedly installed on the upper end of the driving screw 13 between the first bracket 9 and the second bracket 10, and a guide sleeve 16 is fixedly installed on the upper end of the movable threaded sleeve 15. The guide sleeve 16 is sleeved on the outside of the guide rod 14. The driving motor 11 drives the driving screw 13 to rotate, and the driving screw 13 then drives the movable threaded sleeve 15 to move through a threaded connection. The guide sleeve 16 and the guide rod 14 have the effect of positioning the movable threaded sleeve 15.

[0022] In this embodiment, the rotating structure 18 includes a rotating suspension column 19, an adjusting rod 20, a steel ball slot 21 and a spring steel ball 22. The rotating suspension column 19 is movably installed on the inner side of the rotating retaining ring 17, the adjusting rod 20 is welded to the outer side of the rotating suspension column 19, a plurality of steel ball slots 21 are opened on the top center surface of the rotating suspension column 19, the spring steel ball 22 is movably installed inside the rotating retaining ring 17, the spring steel ball 22 is composed of a spring and a steel ball, and the spring pushes the steel ball into the steel ball slot 21 to position the rotating suspension column 19.

[0023] In this embodiment, the rotating suspension column 19 rotates around the rotating clamp ring 17, the spring steel ball 22 is embedded in the steel ball clamping groove 21 for matching connection, and the two mounting columns 23 are movably installed at the lower end of the rotating suspension column 19. The rotating suspension column 19 adjusts the angle of the lower mounting column 23 by rotating.

[0024] In this embodiment, the top water spray seat 25 is located below the fixed sleeve rod 27, and the two synchronous gears 24 are meshed and connected. Through the meshing connection of the synchronous gears 24, the two mounting columns 23 can rotate synchronously through the synchronous gears 24.

[0025] In this embodiment, the guide structure 28 includes a guide joint 29, a guide pipe 30 and a switch valve 31. The guide joint 29 is fixedly installed on the outside of the fixed sleeve rod 27, the guide pipe 30 is fixedly installed at one end of the guide joint 29, and the switch valve 31 is movably installed at the center of the outside of the guide pipe 30. The switch valve 31 plays the effect of controlling the smoothness and closing of the inside of the guide pipe 30.

[0026] In this embodiment, the lower end of the diversion pipe 30 is connected with the top joint 26, and the diversion pipe 30 is connected with the interior of the fixed sleeve rod 27 through the diversion joint 29. The fixed sleeve rod 27 and the telescopic rod 32 are both arranged in an arc shape and concentrically arranged. The telescopic rod 32 is inserted into the fixed sleeve rod 27 for telescopic movement. The water received by the top joint 26 flows into the diversion joint 29 through the diversion pipe 30. The telescopic rod 32 is a telescopic structure at both ends and is inserted into the fixed sleeve rod 27 for movability.

[0027] In this embodiment, the water mist nozzles 35 are located outside the prefabricated beam body 38 , and the water mist nozzles 35 on both sides are symmetrically arranged and installed. The water mist nozzles 35 have the effect of spraying water mist onto the prefabricated beam body 38 .

[0028] It should be noted that the present invention is a prefabricated beam maintenance spray device. When in use, the base water tank 1 and the up-down ramp plate 4 are placed on the ground, and the prefabricated beam body 38 is placed on the bearing plate 36. The prefabricated beam body 38 is moved to the top of the water tank top cover 2 on the base water tank 1 by the rotation of the moving wheel 37 under the bearing plate 36, so that the prefabricated beam body 38 moves to the inner side of the first bracket 9 and the second bracket 10, and the water mist nozzle 35 is located above the prefabricated beam body 38. Water is stored in the base water tank 1. The water in the base water tank 1 is pumped out through the pumping pipe 5 by the operation of the water spray pump 6, and then the water is sprayed through the water spray joint 7 and The water is delivered to the top joint 26 and the bottom joint 34 by the water spray delivery pipe 8, so that the water enters the top water spray seat 25 and the bottom water spray seat 33, and finally sprayed out from the water mist nozzle 35 to form water mist sprayed on the precast beam body 38. The driving motor 11 is driven to rotate the driving screw 13, and the rotation of the driving screw 13 drives it to move left and right through the threaded connection with the moving thread sleeve 15, thereby driving the multiple water mist nozzles 35 below to move left and right, so that the water mist nozzles 35 move to spray the entire section of the precast beam body 38, so as to spray and maintain the precast beam body 38; When it is necessary to spray the side of the precast beam body 38, the top joint 26 is connected to the diversion joint 29 through the diversion pipe 30. Therefore, after the switch valve 31 is opened, the water received by the top joint 26 will also be transported to the diversion joint 29 through the diversion pipe 30, and then enter the fixed sleeve rods 27 on both sides. Then, the water pressure generated in the fixed sleeve rod 27 pushes the telescopic rod 32 to extend outward from the fixed sleeve rod 27, so that the bottom water spray seats 33 on both sides expand in an arc shape, and then the bottom water spray seats 33 and the water mist nozzles 35 on both sides move to both sides of the precast beam body 38 to spray and maintain the side of the precast beam body 38; When the spray angle of the water mist nozzle 35 needs to be adjusted, the fixed sleeve rod 27 is bent to rotate the mounting column 23, and the meshing connection of the synchronous gears 24 at the lower ends of the two mounting columns 23 rotates synchronously, so that the two mounting columns 23 and the fixed sleeve rod 27 rotate synchronously, and the angle of the water mist nozzle 35 below is changed to adjust the spray angle of the water mist nozzle 35, and the bevel surface of the prefabricated beam body 38 is sprayed for maintenance; When it is necessary to adjust the overall spray direction of the water mist nozzle 35, pull the adjusting rod 20 up and down to drive the rotating column 19 to rotate inside the rotating clamp 17. When the rotating column 19 rotates, the spring in the spring steel ball 22 is pressed to contract. After the rotating column 19 rotates, the spring in the spring steel ball 22 pushes the steel ball to be clamped into the steel ball clamping groove 21 to position the rotating column 19, thereby adjusting the angle of the rotating column 19 to adjust the overall direction of the water mist nozzle 35 below, and then cooperate with the expansion and angle adjustment of the water mist nozzles 35 on both sides, so that the water mist nozzle 35 can spray water mist in multiple directions and angles, and the adjustable range of water mist spraying is wider, which can be used for spray maintenance in conjunction with prefabricated beam bodies 38 of different shapes.

[0029] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A prefabricated beam maintenance spray device, comprising a base water tank (1), a water tank top cover (2), a first bracket (9) and a second bracket (10), wherein the water tank top cover (2) is fixedly mounted on the top surface of the base water tank (1), the first bracket (9) and the second bracket (10) are placed outside the base water tank (1), and the first bracket (9) is located on one side of the second bracket (10), characterized in that: A driving screw (13) is movably mounted between the first bracket (9) and the second bracket (10); a movable threaded sleeve (15) is threadedly mounted on the outer side of the driving screw (13); a rotating retaining ring (17) is integrally formed at the lower end of the movable threaded sleeve (15); a rotating structure (18) is movably mounted at the bottom of the rotating retaining ring (17); two mounting columns (23) are movably mounted at the lower end of the rotating structure (18); a synchronous gear (24) is fixedly mounted at the lower end of the mounting column (23); a top water spray seat (25) is movably connected to the lower end of the synchronous gear (24); an outer portion of the top water spray seat (25) is provided with a rotating retaining ring (17); a rotating retaining ring (17) is provided with a rotating retaining ring (17); a rotating retaining ring (17) is provided with a rotating retaining ring (17); a rotating retaining ring (18) is provided with a rotating retaining ring (17); two mounting columns (23) are movably mounted at the lower end of the rotating retaining ring (23); a synchronous gear (24) is fixedly mounted at the lower end of the mounting column (23); a top water spray seat (25) is movably connected to the top water spray seat (25); an outer portion of the top water spray seat (25) is provided with a rotating retaining ring (17); a rotating retaining ring (17) is provided with a rotating retaining ring (17); a rotating retaining ring (18) is provided with a rotating retaining ring (18 ... A top joint (26) is fixedly mounted on the side, a fixed sleeve rod (27) is fixedly mounted on the opposite sides of the two mounting columns (23), a flow guide structure (28) is fixedly mounted on the outer sides of the fixed sleeve rod (27) and the top joint (26), a telescopic rod (32) is movably mounted on one end of the fixed sleeve rod (27) away from the mounting column (23), a bottom water spray seat (33) is fixedly mounted on the lower end of the telescopic rod (32), a bottom joint (34) is fixedly mounted on the outer side of the bottom water spray seat (33), and a water mist nozzle (35) is fixedly mounted on one end of the bottom water spray seat (33) and the lower end of the top water spray seat (25).

2. A precast beam maintenance spray device according to claim 1, characterized in that: Both sides of the base water tank (1) are fixedly mounted with up and down ramps (4); the top surface of the water tank top cover (2) is provided with two rows of water permeable holes (3); a bearing plate (36) is arranged above the water tank top cover (2); a plurality of moving wheels (37) are movably mounted at the front and rear ends of the bearing plate (36) and are placed above the water tank top cover (2); and a prefabricated beam body (38) is placed above the bearing plate (36).

3. The precast beam maintenance spray device according to claim 1, characterized in that: A water suction pipe (5) is fixedly mounted at the front end of the base water tank (1), a water spray pump (6) is fixedly mounted at the front end of the water suction pipe (5), a water spray joint (7) is fixedly mounted at the output port of the water spray pump (6), a plurality of water spray delivery pipes (8) are fixedly mounted at the upper end of the water spray joint (7), and one end of the water spray delivery pipe (8) away from the water spray joint (7) is fixedly connected to a top joint (26) and a bottom joint (34).

4. The precast beam maintenance spray device according to claim 1, characterized in that: A driving motor (11) is fixedly mounted on one side of the top of the first bracket (9), a rotating mounting seat (12) is fixedly mounted on one side of the top of the second bracket (10), one end of the driving screw rod (13) is movably connected to the rotating mounting seat (12), a rotating shaft of the driving motor (11) is fixedly connected to the other end of the driving screw rod (13), a guide rod (14) is fixedly mounted on the upper end of the driving screw rod (13) between the first bracket (9) and the second bracket (10), a guide sleeve (16) is fixedly mounted on the upper end of the movable threaded sleeve (15), and the guide sleeve (16) is sleeved on the outer side of the guide rod (14).

5. The precast beam maintenance spray device according to claim 1, characterized in that: The rotating structure (18) comprises a rotating hanging column (19), an adjusting rod (20), a steel ball clamping groove (21) and a spring steel ball (22); the rotating hanging column (19) is movably mounted on the inner side of the rotating clamping ring (17); the adjusting rod (20) is welded to the outer side of the rotating hanging column (19); a plurality of steel ball clamping grooves (21) are provided on the top center surface of the rotating hanging column (19); and the spring steel ball (22) is movably mounted inside the rotating clamping ring (17).

6. A prefabricated beam maintenance spray device according to claim 5, characterized in that: The rotating suspension column (19) rotates around the rotating clamp ring (17), the spring steel ball (22) is embedded in the steel ball clamping groove (21) for matching connection, and the two mounting columns (23) are movably mounted on the lower end of the rotating suspension column (19).

7. The precast beam maintenance spray device according to claim 1, characterized in that: The top water spray seat (25) is located below the fixed sleeve rod (27), and the two synchronous gears (24) are meshed and connected, and the two mounting columns (23) rotate synchronously through the synchronous gears (24).

8. The precast beam maintenance spray device according to claim 1, characterized in that: The flow guiding structure (28) comprises a flow guiding joint (29), a flow guiding pipe (30) and an on-off valve (31); the flow guiding joint (29) is fixedly mounted on the outside of the fixed sleeve rod (27); the flow guiding pipe (30) is fixedly mounted on one end of the flow guiding joint (29); and the on-off valve (31) is movably mounted at the center of the outside of the flow guiding pipe (30).

9. The precast beam maintenance spray device according to claim 8, characterized in that: The lower end of the diversion pipe (30) is connected to the top joint (26), and the diversion pipe (30) is connected to the interior of the fixed sleeve rod (27) through the diversion joint (29). The fixed sleeve rod (27) and the telescopic rod (32) are both arranged in an arc shape and concentrically, and the telescopic rod (32) is inserted into the fixed sleeve rod (27) to be telescopically movable.

10. The precast beam maintenance spray device according to claim 2, characterized in that: The water mist nozzles (35) are located outside the prefabricated beam body (38), and the water mist nozzles (35) on both sides are symmetrically arranged and installed.

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