A concrete curing device that uses a tower crane for high-altitude spraying.

Abstract

This invention relates to the field of construction equipment, specifically a concrete curing device that utilizes a tower crane for high-altitude spraying. A second oil pump controls the extension and retraction of a second hydraulic telescopic rod to adjust the position of the spray pipe, aligning it with the desired spray location. A third oil pump controls the extension and retraction of a third hydraulic telescopic rod to adjust the spray pipe's dispersion or concentration to meet different needs for concentrated or dispersed spraying. When downward spraying is required, a sealing block seals the second spray nozzle under the action of a first spring, the first hydraulic telescopic rod retracts, and a top rod installed on the inner wall of the inner pipe pushes downward against the sealing block, thus releasing the seal on the second spray nozzle. When side spraying is required, the first hydraulic telescopic rod extends, the top rod no longer touches the sealing block, and water flows from the first spray nozzle on the outer pipe surface, achieving a side spraying effect and eliminating downward spraying. The spraying direction can be flexibly selected according to the construction scenario, improving the curing effect.

Description

Technical Field

[0001] This invention relates to the field of construction equipment, specifically a concrete curing device that utilizes a tower crane for high-altitude spraying. Background Technology

[0002] After the concrete of a large building is poured, if the climate is hot and the air is dry, and curing is not carried out in time, the moisture in the concrete will evaporate too quickly, resulting in dehydration. This will prevent the cement particles that have formed a gel from fully hydrating and transforming into stable crystals, resulting in insufficient bonding strength. Consequently, flaky or powdery flakes will appear on the concrete surface. Concrete curing involves artificially creating certain humidity and temperature conditions to allow the freshly poured concrete to harden normally or accelerate its strength development. The gradual hardening and strength gain of concrete is a result of cement hydration, which requires specific temperature and humidity conditions.

[0003] Using tower cranes for high-altitude spraying is a common method of concrete curing, characterized by high spraying efficiency and a large spraying range. However, tower crane spraying can often only spray downwards from a high position. When it is necessary to spray the interior of a building laterally, existing tower crane spraying equipment is not convenient to change the spraying height. Therefore, there is an urgent need for a concrete curing device that can spray both downwards and laterally. Summary of the Invention

[0004] To address the problems in existing technologies, this invention provides a concrete curing device that utilizes a tower crane for high-altitude spraying. When downward spraying is required, the sealing block seals the second spray nozzle under the action of the first spring force, the first hydraulic telescopic rod retracts, and the top rod installed on the inner wall of the inner pipe pushes downward against the sealing block, so that the sealing block no longer seals the second spray nozzle. When side spraying is required, when the first hydraulic telescopic rod extends, the top rod no longer pushes against the sealing block, and water flows out from the first spray nozzle on the surface of the outer pipe from the side, achieving the effect of side spraying, and downward spraying is no longer required. The spraying direction can be flexibly selected according to the construction scenario, improving the curing effect.

[0005] The technical solution adopted by this invention to solve its technical problem is: a concrete curing device using a tower crane for high-altitude spraying, comprising a tower crane and a spraying mechanism installed at the bottom of the crane boom at the top of the tower crane. The spraying mechanism includes a water pump, a water pipe, a water storage tank, and a spray pipe. The outlet of the water pump is sealed and fixedly connected to one end of the water pipe, and the other end of the water pipe is connected to the water storage tank. The water storage tank is fixedly welded to the bottom of the crane boom. The spray pipe includes an inner pipe and an outer pipe fitted onto the surface of the inner pipe. The bottom of the water storage tank is provided with a sliding groove, and the top end of the inner pipe is slidably connected to the sliding groove. The top of the sliding groove is evenly provided with multiple first openings communicating with the inside of the water storage tank. The inner pipe communicates with the inside of the water storage tank through the first openings. During operation, the device is powered on, water is pumped from the water storage tank by the water pump, and the water is introduced into the water storage tank through the water pipe. The water in the water storage tank is sprayed out from the spray pipe through the first openings and then sprayed onto the concrete to achieve the curing effect.

[0006] Specifically, the spraying mechanism also includes a first hydraulic telescopic rod. The surface of the outer pipe is uniformly provided with first spray nozzles. A fixing block is welded to the inner wall of the inner pipe. The tail of the first pressure cylinder of the first hydraulic telescopic rod is fixedly connected to one side of the fixing block. One end of the first piston rod of the first hydraulic telescopic rod is fixedly welded to the outer pipe. When lateral spraying is required, the first oil suction pump installed on the inner wall of the inner pipe is turned on. The first oil suction pump injects hydraulic oil from the first oil storage tank into the first pressure cylinder, causing the first piston rod to extend downwards and drive the outer pipe downwards. Water flows out from the first spray nozzles on the surface of the outer pipe to the side. At this time, only the position of the tower crane boom needs to be adjusted to easily perform lateral spraying on the interior of the building.

[0007] Specifically, the bottom of the outer pipe is provided with a second spray nozzle, and a sealing block, a first spring, and a support block are installed inside the second spray nozzle. The support block is fixedly welded to the inner wall of the second spray nozzle, and the two ends of the first spring are fixedly connected to the sealing block and the support block, respectively. A top rod is welded to the inner wall of the inner pipe, and one end of the top rod abuts against the top of the sealing block. The sealing block can seal the second spray nozzle under the action of the first spring. When the first hydraulic telescopic rod retracts, the outer pipe moves upward relative to the inner pipe, and the top rod installed on the inner wall of the inner pipe pushes downward against the sealing block, so that the sealing block no longer seals the second spray nozzle. At this time, water in the water tank can be sprayed downward through the second spray nozzle. When the first hydraulic telescopic rod extends, the outer pipe moves downward relative to the inner pipe, the top rod no longer abuts against the sealing block, and the sealing block seals the second spray nozzle under the action of the first spring. Water flows out from the first spray nozzle on the surface of the outer pipe from the side, achieving the effect of lateral spraying, and no longer sprays downward. This setting allows for flexible selection of the spray direction according to the construction scenario, improving the maintenance effect.

[0008] Specifically, the surface of the spray pipe is equipped with a folding telescopic mechanism, which includes a first connecting rod, a second connecting rod, a second hydraulic telescopic rod, a third hydraulic telescopic rod, and a support plate. The top of the support plate is fixedly welded to the bottom of the water storage tank. One end of the second hydraulic telescopic rod is fixedly welded to one side of the support plate, and its other end is slidably connected to the surface of the third hydraulic telescopic rod. Both ends of the third hydraulic telescopic rod are rotatably connected to one end of the first connecting rod and one end of the second connecting rod, respectively. The top end of the inner tube passes through the middle of the first and second connecting rods, respectively. The first and second connecting rods are staggered, and the other end of the first connecting rod is rotatably connected to one end of the adjacent first connecting rod, and the other end of the second connecting rod is rotatably connected to one end of the adjacent second connecting rod. A second oil storage tank, a second oil suction pump, and a third oil suction pump are fixedly installed on the support plate. The second oil storage tank, the second oil suction pump, and the second pressure cylinder of the second hydraulic telescopic rod are all connected by pipelines. The second oil storage tank, the third oil suction pump, and the third pressure cylinder of the third hydraulic telescopic rod are all connected by pipelines.

[0009] During operation, the equipment is powered on, and the third oil pump draws hydraulic oil stored in the second oil storage tank into the third pressure cylinder. The third piston rod in the third pressure cylinder extends, causing the third hydraulic telescopic rod to extend. The first and second connecting rods form a telescopic linkage mechanism. As the third hydraulic telescopic rod extends, the folding telescopic mechanism retracts. The inner tube of the spray pipe acts as a connecting rod shaft. As the first and second connecting rods fold and retract, they move closer together. When concentrated spraying is required, multiple spray pipes converge to enhance the spraying effect. The third oil pump draws hydraulic oil stored in the third pressure cylinder into the system. Inside the second oil storage tank, the third piston rod retracts into the third pressure cylinder. At this time, the third hydraulic telescopic rod shortens, and the folding telescopic mechanism extends. The inner tube of the spray pipe acts as a connecting rod shaft. As the first and second connecting rods extend and disperse, the spraying range can be increased, facilitating large-scale spraying. Simultaneously, the extension and retraction of the second hydraulic telescopic rod are controlled by the second oil suction pump, which in turn pushes the folding telescopic mechanism to move the entire spray pipe left and right, making it easier to align with the desired spraying location. Through the above settings, the spraying position and spraying range can be easily determined, increasing the equipment's effectiveness in different scenarios.

[0010] Specifically, a sealing mechanism is provided at the top of the first opening. The sealing mechanism includes a second spring, a sealing plate, and a top block fixedly installed at the bottom of the sealing plate. The second spring is fixedly connected to the inner top wall of the water storage tank and the top of the sealing plate, respectively. The bottom end of the top block penetrates the bottom wall of the water storage tank and extends into the slide groove. When the top end of the spray pipe moves along the slide groove to the bottom of the first opening, the top end of the spray pipe abuts against the top block, causing the sealing plate to move upward, thereby connecting the water storage tank with the spray pipe. At this time, the other first openings are sealed under the action of the sealing mechanism. With this configuration, when the folding and telescopic mechanism causes the spray pipes to disperse or concentrate, the spray pipes can also connect with the water storage tank.

[0011] The beneficial effects of this invention are:

[0012] (1) The concrete curing device using tower crane for high-altitude spraying described in this invention, when side spraying is required, the first oil suction pump installed on the inner wall of the inner pipe is turned on. The first oil suction pump injects hydraulic oil from the first oil storage tank into the first pressure cylinder, so that the first piston rod extends downward and drives the outer pipe to move downward. Water flows out from the first spray port on the surface of the outer pipe to the side. At this time, it is only necessary to adjust the position of the tower crane boom to facilitate side spraying of the building interior.

[0013] (2) The concrete curing device using tower crane for high-altitude spraying described in this invention uses a spraying mechanism. Under the action of the first spring force, the sealing block can seal the second spraying port. When the first hydraulic telescopic rod retracts, the outer pipe moves upward relative to the inner pipe, and the top rod installed on the inner side wall of the inner pipe pushes down to contact the sealing block, so that the sealing block no longer seals the second spraying port. At this time, the water in the water tank can be sprayed downward through the second spraying port. When the first hydraulic telescopic rod extends, the outer pipe moves downward relative to the inner pipe, and the top rod no longer touches the sealing block. Under the action of the first spring force, the sealing block seals the second spraying port, and the water flow is sprayed out from the side of the first spraying port on the surface of the outer pipe, achieving the effect of lateral spraying, and no longer spraying downward. With this setting, the spraying direction can be flexibly selected according to the construction scenario, which improves the curing effect.

[0014] (3) The concrete curing device for high-altitude spraying using a tower crane described in this invention uses a combination of a folding telescopic mechanism and a spraying mechanism. When working, the device is connected to the power supply, water is pumped from the water storage tank by a water pump, and water is introduced into the water storage tank through a water pipe. The second oil pump is used to control the extension and retraction of the second hydraulic telescopic rod to adjust the position of the spray pipe so that it is aligned with the position to be sprayed. At the same time, the third oil pump can be used to control the extension and retraction of the third hydraulic telescopic rod to adjust the spray pipe to be dispersed or concentrated to meet the different needs of concentrated spraying or dispersed spraying.

[0015] (4) The concrete curing device using tower crane for high-altitude spraying described in this invention uses a combination of sealing mechanism and spraying mechanism. When the top of the spray pipe moves along the slide groove to the bottom of the first opening, the top of the spray pipe abuts against the top block, causing the sealing plate to move upward, thereby connecting the water storage tank with the spray pipe. At this time, the other first openings are sealed under the action of the sealing mechanism. With this setting, when the folding telescopic mechanism drives the spray pipe to disperse or concentrate, the spray pipe can also be connected to the water storage tank, preventing water leakage during the use of the equipment. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the overall structure of a concrete curing device that utilizes a tower crane for high-altitude spraying, provided by the present invention.

[0018] Figure 2 for Figure 1 The diagram shows the connection of the spraying mechanism;

[0019] Figure 3 for Figure 2 A schematic diagram showing the connection of the spray mechanism when the outer pipe is extended.

[0020] Figure 4 for Figure 1 The diagram shows the connection of the folding telescopic mechanism.

[0021] Figure 5 for Figure 2 The enlarged view of part A shown;

[0022] Figure 6 for Figure 2 Enlarged view of section B shown;

[0023] Figure 7 for Figure 3 The enlarged view of section C is shown.

[0024] In the diagram: 1. Tower crane; 11. Lifting boom; 2. Sprinkler mechanism; 21. Water pump; 22. Water pipe; 23. Water tank; 231. Slide; 232. First opening; 24. Sprinkler pipe; 241. Inner pipe; 2411. Fixing block; 242. Outer pipe; 2421. First spray nozzle; 2422. Second spray nozzle; 25. First hydraulic telescopic rod; 251. First pressure cylinder; 252. First piston rod; 253. First oil suction pump; 254. First oil storage tank; 31. Sealing 32. First spring; 33. Support block; 34. Top rod; 4. Sealing mechanism; 41. Second spring; 42. Sealing plate; 421. Top block; 5. Folding telescopic mechanism; 51. First connecting rod; 52. Second connecting rod; 53. Second hydraulic telescopic rod; 531. Second oil storage tank; 532. Second oil suction pump; 533. Second pressure cylinder; 54. Third hydraulic telescopic rod; 541. Third oil suction pump; 542. Third pressure cylinder; 543. Third piston rod; 55. Support plate. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0026] like Figures 1-7As shown, the present invention discloses a concrete curing device using a tower crane for high-altitude spraying, comprising a tower crane 1 and a spraying mechanism 2 installed at the bottom of the lifting arm 11 at the top of the tower crane 1. The spraying mechanism 2 includes a water pump 21, a water pipe 22, a water storage tank 23, and a spray pipe 24. The outlet of the water pump 21 is sealed and fixedly connected to one end of the water pipe 22, and the other end of the water pipe 22 is connected to the water storage tank 23. The water storage tank 23 is fixedly welded to the bottom of the lifting arm 11. The spray pipe 24 includes an inner pipe 241 and an outer pipe 242 fitted on the surface of the inner pipe 241. The bottom of the water storage tank 23 is provided with a sliding groove 231, and the top end of the inner pipe 241 is slidably connected to the sliding groove 231. The top of the sliding groove 231 is evenly provided with a plurality of first openings 232 communicating with the inside of the water storage tank 23. The inner pipe 241 communicates with the inside of the water storage tank 23 through the first openings 232. When in operation, the equipment is connected to the power supply, water is pumped from the water storage tank by the water pump 21, and the water is introduced into the water storage tank 23 through the water pipe 22. The water in the water storage tank 23 is sprayed out from the spray pipe 24 through the first opening 232 and then sprayed onto the concrete to achieve the curing effect.

[0027] Specifically, the spraying mechanism 2 also includes a first hydraulic telescopic rod 25. The surface of the outer pipe 242 is uniformly provided with first spray nozzles 2421. A fixing block 2411 is welded to the inner wall of the inner pipe 241. The tail of the first pressure cylinder 251 of the first hydraulic telescopic rod 25 is fixedly connected to one side of the fixing block 2411. One end of the first piston rod 252 of the first hydraulic telescopic rod 25 is fixedly welded to the outer pipe 242. When lateral spraying is required, the first oil suction pump 253 installed on the inner wall of the inner pipe 241 is turned on. The first oil suction pump 253 injects hydraulic oil from the first oil storage tank 254 into the first pressure cylinder 251, causing the first piston rod 252 to extend downwards and drive the outer pipe 242 to move downwards. Water flows out from the first spray nozzles 2421 on the surface of the outer pipe 242 to the side. At this time, only the position of the tower crane 1 boom 11 needs to be adjusted to easily perform lateral spraying on the interior of the building.

[0028] Specifically, the bottom of the outer tube 242 is provided with a second spray port 2422. A sealing block 31, a first spring 32 and a support block 33 are installed inside the second spray port 2422. The support block 33 is fixedly welded to the inner wall of the second spray port 2422. The two ends of the first spring 32 are fixedly connected to the sealing block 31 and the support block 33 respectively. A top rod 34 is welded to the inner side wall of the inner tube 241. One end of the top rod 34 abuts against the top of the sealing block 31. The sealing block 31 can seal the second spray nozzle 2422 under the elastic force of the first spring 32. When the first hydraulic telescopic rod 25 retracts, the outer pipe 242 moves upward relative to the inner pipe 241, and the top rod 34 installed on the inner wall of the inner pipe 241 pushes downward against the sealing block 31, so that the sealing block 31 no longer seals the second spray nozzle 2422. At this time, the water in the water storage tank 23 can be sprayed downward through the second spray nozzle 2422. When the first hydraulic telescopic rod 25 extends, the outer pipe 242 moves downward relative to the inner pipe 241, and the top rod 34 no longer pushes against the sealing block 31. Under the elastic force of the first spring 32, the sealing block 31 seals the second spray nozzle 2422, and the water flows out from the side from the first spray nozzle 2421 on the surface of the outer pipe 242, achieving the effect of side spraying, and no longer spraying downward. With this setting, the spraying direction can be flexibly selected according to the construction scene, improving the maintenance effect.

[0029] Specifically, a folding telescopic mechanism 5 is installed on the surface of the spray pipe 24. The folding telescopic mechanism 5 includes a first connecting rod 51, a second connecting rod 52, a second hydraulic telescopic rod 53, a third hydraulic telescopic rod 54, and a support plate 55. The top of the support plate 55 is fixedly welded to the bottom of the water storage tank 23. One end of the second hydraulic telescopic rod 53 is fixedly welded to one side of the support plate 55, and its other end is slidably connected to the surface of the third hydraulic telescopic rod 54. The two ends of the third hydraulic telescopic rod 54 are rotatably connected to one end of the first connecting rod 51 and one end of the second connecting rod 52, respectively. The top end of the inner tube 241 passes through the middle of the first connecting rod 51 and the second connecting rod 52, respectively. The first connecting rod 51 and the second connecting rod 52 are staggered. The other end of the first connecting rod 51 is rotatably connected to one end of the adjacent first connecting rod 51, and the other end of the second connecting rod 52 is rotatably connected to one end of the adjacent second connecting rod 52. The second oil storage tank 531, the second oil suction pump 532, and the third oil suction pump 541 are fixedly installed on the support plate 55. The second oil storage tank 531, the second oil suction pump 532, and the second pressure cylinder 533 of the second hydraulic telescopic rod 53 are all connected by pipelines. The second oil storage tank 531, the third oil suction pump 541, and the third pressure cylinder 542 of the third hydraulic telescopic rod 54 are all connected by pipelines.

[0030] During operation, the equipment is powered on, and the third oil suction pump 541 is controlled to draw the hydraulic oil stored in the second oil storage tank 531 into the third pressure cylinder 542. The third piston rod 543 in the third pressure cylinder 542 extends, causing the third hydraulic telescopic rod 54 to extend. The first connecting rod 51 and the second connecting rod 52 form a connecting rod telescopic mechanism. As the third hydraulic telescopic rod 54 extends, the folding telescopic mechanism 5 retracts. The inner tube 241 of the spray pipe 24 acts as a connecting rod shaft. As the first connecting rod 51 and the second connecting rod 52 fold and retract, they move closer to each other. When concentrated spraying is required, multiple spray pipes 24 converge to enhance the spraying effect. The third oil suction pump 541 is controlled to draw the hydraulic oil stored in the third pressure cylinder 542 into the third pressure cylinder 542. Hydraulic oil is drawn into the second oil storage tank 531, and the third piston rod 543 retracts into the third pressure cylinder 542. At this time, the third hydraulic telescopic rod 54 shortens, and the folding telescopic mechanism 5 extends. The inner tube 241 of the spray pipe 24 acts as a connecting rod shaft. As the first connecting rod 51 and the second connecting rod 52 extend and disperse, the spraying range can be increased, facilitating large-scale spraying. At the same time, the extension and retraction of the second hydraulic telescopic rod 53 is controlled by the second oil suction pump 532, which in turn pushes the folding telescopic mechanism 5 to move the spray pipe 24 to the left and right, making it easier to align with the position to be sprayed. Through the above settings, the spraying position and spraying range can be easily determined, increasing the construction effect of the equipment in different scenarios.

[0031] Specifically, a sealing mechanism 4 is provided at the top of the first opening 232. The sealing mechanism 4 includes a second spring 41, a sealing plate 42, and a top block 421 fixedly installed at the bottom of the sealing plate 42. The second spring 41 is fixedly connected to the inner top wall of the water storage tank 23 and the top of the sealing plate 42, respectively. The bottom end of the top block 421 penetrates the bottom wall of the water storage tank 23 and extends into the slide groove 231. When the top end of the spray pipe 24 moves along the slide groove 231 to the bottom of the first opening 232, the top end of the spray pipe 24 abuts against the top block 421, causing the sealing plate 42 to move upward, thereby connecting the water storage tank 23 with the spray pipe 24. At this time, the other first openings 232 are sealed under the action of the sealing mechanism 4. With this configuration, when the folding telescopic mechanism 5 drives the spray pipe 24 to disperse or concentrate, the spray pipe 24 can also connect with the water storage tank 23.

[0032] During operation, the equipment is powered on, and water is drawn from the water storage tank by the water pump 21 and introduced into the water storage tank 23 through the water pipe 22. The second oil suction pump 532 controls the extension and retraction of the second hydraulic telescopic rod 53 to adjust the position of the spray pipe 24 so that it is aligned with the desired spraying location. At the same time, the third oil suction pump 541 can control the extension and retraction of the third hydraulic telescopic rod 54 to adjust the spray pipe 24 to disperse or concentrate to meet different needs of concentrated or dispersed spraying. When the top of the spray pipe 24 moves along the slide 231 to the bottom of the first opening 232, the top of the spray pipe 24 abuts against the top block 421, causing the sealing plate 42 to move upward, thereby connecting the water storage tank 23 with the spray pipe 24. At this time, the other first openings 232 are sealed under the action of the sealing mechanism 4. With this setup, when the folding telescopic mechanism 5 drives the spray pipe 24 to disperse or concentrate, the spray pipe 24 can also be connected to the water storage tank 23, and the water in the water storage tank 23 enters the spray tank through the first opening 232. Inside pipe 24; when downward spraying is required, the sealing block 31 can seal the second spray nozzle 2422 under the action of the first spring 32. When the first hydraulic telescopic rod 25 retracts, the outer pipe 242 moves upward relative to the inner pipe 241, and the top rod 34 installed on the inner wall of the inner pipe 241 pushes downward to the sealing block 31, so that the sealing block 31 no longer seals the second spray nozzle 2422. At this time, the water in the water storage tank 23 can be sprayed downward through the second spray nozzle 2422. When side spraying is required, when the first hydraulic telescopic rod 25 extends, the outer pipe 242 moves downward relative to the inner pipe 241, and the top rod 34 no longer pushes against the sealing block 31. Under the action of the first spring 32, the sealing block 31 seals the second spray nozzle 2422, and the water flows out from the side from the first spray nozzle 2421 on the surface of the outer pipe 242, achieving the effect of side spraying, and no longer spraying downward. With this setting, the spraying direction can be flexibly selected according to the construction scene, improving the maintenance effect.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A concrete curing device that utilizes a tower crane for high-altitude spraying, characterized in that: The system includes a tower crane (1) and a spraying mechanism (2) installed at the bottom of the boom (11) at the top of the tower crane (1). The spraying mechanism (2) includes a water pump (21), a water pipe (22), a water storage tank (23), and a spray pipe (24). A folding telescopic mechanism (5) is installed on the surface of the spray pipe (24). The outlet of the water pump (21) is sealed and fixedly connected to one end of the water pipe (22), and the other end of the water pipe (22) is connected to the water storage tank (23). The water storage tank (23) is fixedly welded. At the bottom of the lifting arm (11), the spray pipe (24) includes an inner pipe (241) and an outer pipe (242) fitted on the surface of the inner pipe (241). The bottom of the water tank (23) is provided with a chute (231). The top of the inner pipe (241) is slidably connected to the chute (231). The top of the chute (231) is evenly provided with a plurality of first openings (232) that communicate with the inside of the water tank (23). The inner pipe (241) communicates with the inside of the water tank (23) through the first openings (232). The spraying mechanism (2) also includes a first hydraulic telescopic rod (25), the surface of the outer tube (242) is uniformly provided with a first spray nozzle (2421), a fixing block (2411) is welded on the inner wall of the inner tube (241), the tail of the first pressure cylinder (251) of the first hydraulic telescopic rod (25) is fixedly connected to one side of the fixing block (2411), and one end of the first piston rod (252) of the first hydraulic telescopic rod (25) is fixedly welded to the outer tube (242); a sealing mechanism (4) is provided at the top of the first opening (232), the sealing mechanism (4) includes a second spring (41), a sealing plate (42) and a top block (421) fixedly installed at the bottom of the sealing plate (42), the second spring (41) is fixedly connected to the inner top wall of the water storage tank (23) and the top of the sealing plate (42), and the bottom end of the top block (421) penetrates the bottom wall of the water storage tank (23) and extends into the slide groove (231).

2. The concrete curing device using a tower crane for high-altitude spraying according to claim 1, characterized in that: The bottom of the outer tube (242) is provided with a second spray port (2422). A sealing block (31), a first spring (32) and a support block (33) are installed inside the second spray port (2422). The support block (33) is fixedly welded to the inner wall of the second spray port (2422). The two ends of the first spring (32) are fixedly connected to the sealing block (31) and the support block (33) respectively. A top rod (34) is welded to the inner wall of the inner tube (241). One end of the top rod (34) abuts against the top of the sealing block (31).

3. A concrete curing device using a tower crane for high-altitude spraying according to claim 1, characterized in that: The folding telescopic mechanism (5) includes a first connecting rod (51), a second connecting rod (52), a second hydraulic telescopic rod (53), a third hydraulic telescopic rod (54), and a support plate (55). The top of the support plate (55) is fixedly welded to the bottom of the water storage tank (23). One end of the second hydraulic telescopic rod (53) is fixedly welded to one side of the support plate (55), and the other end is slidably connected to the surface of the third hydraulic telescopic rod (54). The two ends of the third hydraulic telescopic rod (54) are rotatably connected to one end of the first connecting rod (51) and one end of the second connecting rod (52), respectively. The top end of the inner tube (241) passes through the middle of the first connecting rod (51) and the second connecting rod (52), respectively. The first connecting rod (51) and the second connecting rod (52) are staggered. The other end of the first connecting rod (51) is rotatably connected to one end of the adjacent first connecting rod (51), and the other end of the second connecting rod (52) is rotatably connected to one end of the adjacent second connecting rod (52).

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