A method for long-term maintenance of concrete at the base of the main tower to prevent cracking

Abstract

This invention belongs to the field of building construction technology and discloses a method for long-term maintenance of concrete at the base of a main tower to prevent cracking. The invention also provides a maintenance device for this method, comprising a moisture-retaining cloth, the outer part of which is covered by two running tracks. Through the coordination of structures such as a flow-diverting component, the atomizer rotates and drives the guide component to move. The guide component is pushed upward by a tension spring, and the baffle tilts and engages with the slot of the limiting tube. Water flows through the pipe and the limiting tube, and the wind generated by the atomizer disperses the water flow and pushes it into the interior of the moisture-retaining cloth. At this time, the moisture-retaining cloth keeps the surface of the main tower moist. After the water flow is dispersed by the wind, it can enter the interior of the moisture-retaining cloth more evenly, thus improving the moisturizing effect of the device. When the water drips downwards, most of it is absorbed by the collection component, thus ensuring the moisturizing effect of the moisture-retaining cloth.

Description

Technical Field

[0001] This invention belongs to the field of building construction technology, specifically a method for long-term maintenance of concrete at the base of a main tower to prevent cracking. Background Technology

[0002] In large bridge projects, the main tower, as a crucial structural component, has a concrete base whose quality is vital to the overall stability of the structure. However, due to factors such as the construction environment and the properties of concrete materials, cracks are prone to appear in the concrete at the base of the main tower. These cracks not only affect the aesthetics of the structure but, more seriously, reduce its load-bearing capacity and compromise its safety. In construction techniques, artificial curing methods are generally employed to minimize the formation of cracks in the main tower.

[0003] In existing technologies, maintenance is generally carried out manually on a regular basis. This usually involves manually replenishing water on the surface and base of the main tower of the bridge to reduce cracks and improve quality. However, even the base of the main tower is quite large, and the area and height requiring water replenishment also increase. This can lead to a decline in the quality of manual maintenance, with some areas not being properly replenished, resulting in poor maintenance effects. Therefore, we provide a long-term maintenance method for preventing cracks in the concrete at the base of the main tower. Summary of the Invention

[0004] To address the problems mentioned in the background art, this invention provides a long-term maintenance method for preventing cracking in the concrete at the base of the main tower. This method solves the problem that the base of the main tower of a bridge has a large volume, and the area and height requiring water replenishment also increase, which may lead to a decline in the quality of manual maintenance, inadequate water replenishment in some areas, and thus poor maintenance results.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a method for long-term maintenance of concrete at the root of the main tower to prevent cracking, the specific steps of which are as follows; S01. After the concrete is poured, a curing device shall be used for initial curing to keep the concrete surface moist and prevent drying shrinkage cracks caused by excessive water loss. The initial curing time shall not be less than 7 days. S02. After the initial curing is completed, the intermediate curing is carried out. Temperature and humidity sensors are installed to monitor the temperature and humidity changes inside the concrete in real time. Based on the monitoring data, water is added to the concrete in a timely manner through an automatic water spraying device to maintain the stability of the internal humidity of the concrete. The intermediate curing time is not less than 30 days. S03. After the mid-term curing is completed, long-term curing is carried out. The stress state of the concrete is monitored by the pre-embedded stress sensors. When abnormal stress changes are found, measures are taken in time to reinforce the concrete and prevent cracks from forming. The long-term curing time is set according to the needs of the project. S04. During the curing process, the compaction degree of the concrete shall be tested regularly to ensure that the density of the concrete meets the design requirements. S05. Throughout the maintenance process, wireless transmission technology is used to transmit monitoring data such as temperature, humidity, and stress to a remote monitoring center in real time for data analysis and processing.

[0006] A device for long-term maintenance of concrete at the root of a main tower to prevent cracking includes a moisture-retaining cloth, the outer part of which is covered with two running tracks, and a cleaning component. The cleaning component is connected to the running track via a power component. There are four running tracks in total, with two tracks forming a group. Each group of running tracks is located at the top and bottom of the cleaning component. The bottom of the cleaning component is equipped with two casters. A blocking assembly, wherein the blocking assembly is disposed inside the cleaning assembly; A collection component, which is slidably mounted inside the cleaning component; A diversion component is rotatably mounted inside a cleaning component and driven by the cleaning component; The cleaning assembly includes a housing that is slidably mounted to a running track via each set of the power components; The diversion assembly includes a fan rotatably mounted inside the housing, a guide assembly externally threaded to the fan, the guide assembly horizontally moving inside the housing, the guide assembly being connected to the housing via a tension spring, and push rods hinged to both sides of the guide assembly; The baffle assembly includes a pipe fixed inside the housing, with a slot on the side of the pipe for connecting a water supply truck, and limit tubes fixed at equal intervals on the outside of the pipe. A baffle is rotatably installed on the outside of the limit tube, and the outside of the baffle is hinged to the push rod via a guide rod.

[0007] Preferably, the housing restricts the guide assembly to move only horizontally, the cleaning assembly drives the fan to rotate, the guide assembly moves horizontally according to the threaded groove on the outside of the fan, the guide assembly pushes the baffle to a horizontal state through the push rod and the push guide rod, and the wind force generated by the fan rotation passes through the baffle assembly and blows to the outside of the moisturizing cloth.

[0008] Preferably, the water supply truck injects water into the limiting pipe through a pipe. After the baffle is in a horizontal state, the groove inside the baffle is connected to the limiting pipe, and the water flows out through the groove inside the baffle. The wind force generated by the rotation of the fan will blow the water horizontally and distribute it to the outside of the moisturizing cloth.

[0009] Preferably, the cleaning assembly further includes cleaning pipes and collection pipes fixed on both sides of the housing. The interior of the cleaning pipes and collection pipes are connected to the interior of the housing. A second motor is fixed inside the housing. The output shaft of the second motor passes through the housing and is fixed to a turntable. The output shaft of the housing is connected to a turbine via a chain drive.

[0010] Preferably, there are two turbines connected by a second chain drive. The air generated by the rotation of the turbines is discharged through the cleaning pipe, and the suction generated is used to absorb impurities and debris from the outside of the moisturizing cloth through the collection pipe. The collection pipe is equipped with a filter screen inside.

[0011] Preferably, the bottom of the housing is provided with two casters, which are used to support the movement of the cleaning component.

[0012] Preferably, the collecting assembly includes a reciprocating threaded rod slidably installed inside the housing. The upper and lower ends of the reciprocating threaded rod are connected to the housing via two springs. Rollers and collecting cylinders are rotatably installed at the upper and lower ends of the reciprocating threaded rod, and a flow collecting cylinder is threadedly installed in the middle of the reciprocating threaded rod. The flow collecting cylinder has a slot inside and is connected to the inside of the collecting cylinder via a telescopic cylinder.

[0013] Preferably, the telescopic cylinder is hollow inside and has a slot at the bottom, and the inside of the collecting cylinder is connected to the collecting cylinder through the telescopic cylinder.

[0014] Preferably, the power assembly includes a motor fixed inside the housing. The output shaft of the motor passes through the housing and is connected to a gear shaft assembly. The gear shaft assembly is composed of gear shafts arranged through the vertices of three isosceles triangles. A bidirectional spring telescopic rod is connected between the gear shafts located at the two ends of the base of the triangles. The three gear shafts mesh with each other and drive each other. Two adjacent gear shafts 302 are movably connected by a limiting plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention utilizes a combination of components such as a diversion assembly and a guide assembly. The fan rotates and drives the guide assembly to move, which in turn pushes the push rod upward via a tension spring. The baffle tilts and engages with the slot of the limiting tube. Water flows out through the pipe and the limiting tube, while the wind generated by the fan disperses the water flow and pushes it into the interior of the moisturizing cloth. At this time, the moisturizing cloth keeps the surface of the main tower moist. After the water flow is dispersed by the wind, it can enter the interior of the moisturizing cloth more evenly, thus improving the moisturizing effect of the device. When the water drips downward, most of it is absorbed by the collection assembly, thereby ensuring the moisturizing effect of the moisturizing cloth.

[0016] This invention, through the combination of cleaning components and moisturizing cloth, allows for the removal of impurities or debris that may accumulate on the surface of the moisturizing cloth when it has not been used for an extended period. The second motor then starts, and its output shaft and chain drive two turbines to rotate. This generates airflow inside the cleaning pipe, blowing away the impurities and debris from the moisturizing cloth. Simultaneously, suction is generated inside the collection pipe, drawing in most of the impurities, thus reducing environmental pollution during operation.

[0017] This invention, through the cooperation of structures such as a baffle assembly and a diversion assembly, allows the rotating disc to rotate when the device is not performing humidification work, thereby causing the fan to rotate in the opposite direction. Due to the tension of the spring, the reverse rotation of the fan will cause the guide assembly to move, and pull the baffle down through the push rod and the guide rod, thereby preventing impurities and debris from entering the interior of the casing, while reducing the time and cost of later maintenance of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the external structure of the present invention; Figure 2 This is a diagram illustrating the internal structure of the cleaning component of the present invention; Figure 3 This is a schematic diagram showing the interaction between the main structure of the power component of the present invention and the running track; Figure 4 This is a diagram showing the internal structure of the outer casing of the present invention and its connection relationship with the shunt assembly; Figure 5 This is a schematic diagram of the cooperation between the baffle and the limiting tube structure of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle; Figure 7 This is a schematic diagram showing the disassembled main structure of the blocking component and the diversion component of the present invention; Figure 8 This is a schematic diagram showing the positions of the fan and guide component of the present invention. Figure 9 This is a schematic diagram showing the assembly of the components and the outer shell structure of the present invention; Figure 10 The present invention collects cross-sectional structural disassembly diagrams of the components.

[0019] In the diagram: 100, moisturizing cloth; 200, running track; 300, power component; 301, motor one; 302, gear shaft; 303, limiting plate; 304, bidirectional spring telescopic rod; 400, cleaning component; 401, outer casing; 402, cleaning pipe; 403, collection pipe; 404, motor two; 405, turntable; 406, chain; 407, turbine; 500, baffle component; 501, pipe; 502, limiting tube; 503, baffle; 504, push rod; 600, diverting component; 601, fan; 602, guide component; 603, push rod; 604, tension spring; 700, collection component; 701, reciprocating threaded rod; 702, roller; 703, collector; 704, telescopic cylinder; 705, collection cylinder; 706, spring. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] like Figures 1 to 10 As shown, the present invention provides a method for long-term maintenance of concrete at the root of the main tower to prevent cracking, and the specific steps are as follows; S01. After the concrete is poured, a curing device shall be used for initial curing to keep the concrete surface moist and prevent drying shrinkage cracks caused by excessive water loss. The initial curing time shall not be less than 7 days. S02. After the initial curing is completed, the intermediate curing is carried out. Temperature and humidity sensors are installed to monitor the temperature and humidity changes inside the concrete in real time. Based on the monitoring data, water is added to the concrete in a timely manner through an automatic water spraying device to maintain the stability of the internal humidity of the concrete. The intermediate curing time is not less than 30 days. S03. After the mid-term curing is completed, long-term curing is carried out. The stress state of the concrete is monitored by the pre-embedded stress sensors. When abnormal stress changes are found, measures are taken in time to reinforce the concrete and prevent cracks from forming. The long-term curing time is set according to the needs of the project. S04. During the curing process, the compaction degree of the concrete shall be tested regularly to ensure that the density of the concrete meets the design requirements. S05. Throughout the maintenance process, wireless transmission technology is used to transmit monitoring data such as temperature, humidity, and stress to a remote monitoring center in real time for data analysis and processing.

[0022] A long-term maintenance device for preventing cracking of concrete at the root of a main tower includes a moisture-retaining cloth 100, the outer part of which is covered by two running tracks 200, and a cleaning component 400. The cleaning component 400 is connected to the running track 200 via the power component 300. There are four running tracks 200 in total, and they are arranged in pairs. Each pair of running tracks 200 is located at the top and bottom of the cleaning component 400. The bottom of the cleaning component 400 is equipped with two casters. The blocking component 500 is located inside the cleaning component 400; Collection component 700 is slidably installed inside the cleaning component 400; Diverter assembly 600 is rotatably mounted inside cleaning assembly 400 and driven by cleaning assembly 400. The cleaning component 400 includes a housing 401, which is slidably mounted to the running track 200 via each set of power components 300; The shunt assembly 600 includes a fan 601 rotatably mounted inside the housing 401. A guide assembly 602 is threadedly connected to the outside of the fan 601. The guide assembly 602 moves horizontally inside the housing 401. The guide assembly 602 is connected to the housing 401 via a tension spring 604. Push rods 603 are hinged to both sides of the guide assembly 602. The baffle assembly 500 includes a pipe 501 fixed inside the housing 401. The side of the pipe 501 has a slot for connecting a water supply truck. Limiting pipes 502 are fixed at equal intervals on the outside of the pipe 501. A baffle 503 is rotatably installed on the outside of the limiting pipe 502. The outside of the baffle 503 is hinged to the push rod 603 through a push rod 504.

[0023] The above solution is adopted as follows: When the device is in operation, the cleaning component 400 generates suction and airflow, and can also drive other mechanisms in the cleaning component 400 to work. The airflow generated by the cleaning component 400 can remove impurities and garbage adhering to the outside of the moisturizing cloth 100. At the same time, the suction generated by the cleaning component 400 can collect most of the impurities and garbage, further improving the moisturizing effect of the device without causing excessive harm to the environment. The cleaning component 400 drives the baffle component 500 to work through the diversion component 600. At this time, the diversion component 600 generates airflow and blows away the water flow from the baffle component 500, so that the water flow can be more evenly distributed on the surface of the moisturizing cloth 100, thereby improving its moisturizing effect.

[0024] like Figures 5-8As shown, the housing 401 restricts the guide assembly 602 to move only horizontally. The cleaning assembly 400 drives the fan 601 to rotate. The guide assembly 602 moves horizontally according to the threaded groove on the outside of the fan 601. The guide assembly 602 pushes the baffle 503 to a horizontal state through the push rod 603 and the push guide rod 504. The wind generated by the rotation of the fan 601 passes through the baffle assembly 500 and blows to the outside of the moisturizing cloth 100.

[0025] The water supply truck injects water into the limiting pipe 502 through the pipe 501. After the baffle 503 is in a horizontal state, the groove inside the baffle 503 is connected to the limiting pipe 502. The water flows out through the groove inside the baffle 503. The wind generated by the rotation of the fan 601 blows the water horizontally and distributes it to the outside of the moisturizing cloth 100.

[0026] The above scheme is adopted: After the cleaning component 400 is started, the diversion component 600 drives the baffle component 500 to work. At this time, the water supply truck delivers water to the baffle component 500 and flows to the outside. The wind generated by the diversion component 600 blows the water to the outside of the moisturizing cloth 100, thereby improving the moisturizing effect of the device. After the device stops working, the turntable 405 is rotated in the opposite direction. Since the tension spring 604 always pulls the guide component 602, after the fan 601 rotates in the opposite direction, the guide component 602 moves in the opposite direction through its external thread groove, and the baffle 503 is tilted again. The baffle component 500 is in the closed state, which effectively prevents external impurities from entering the device, thereby reducing the time for subsequent maintenance.

[0027] like Figure 2 and Figure 4 As shown, the cleaning assembly 400 also includes a cleaning pipe 402 and a collection pipe 403 fixedly mounted on both sides of the housing 401. The interiors of the cleaning pipe 402 and the collection pipe 403 are connected to the interior of the housing 401. A second motor 404 is fixedly mounted inside the housing 401. The output shaft of the second motor 404 passes through the housing 401 and is fixedly mounted on a turntable 405. The output shaft of the housing 401 is connected to a turbine 407 via a chain 406.

[0028] There are two turbines 407 connected by a second chain 406. The air generated by the rotation of the turbines 407 is discharged through the cleaning pipe 402, and the suction generated absorbs impurities and debris from the outside of the moisturizing cloth 100 through the collection pipe 403. A filter screen is installed inside the collection pipe 403.

[0029] The bottom of the housing 401 is provided with two casters, which are used to support the movement of the cleaning assembly 400.

[0030] The above scheme is adopted: After the motor 404 starts, the suction and wind generated are transmitted through the cleaning pipe 402 and the collection pipe 403 respectively. Since the main tower is still in the construction area, there is a lot of dust and garbage on its exterior, which may adhere to the exterior of the moisturizing cloth 100. The wind generated by the cleaning pipe 402 will blow off the dust and garbage adhering to the exterior of the moisturizing cloth 100, and the collection pipe 403 will collect both in time, thereby avoiding excessive harm to the environment when the device is working. When the power component 300 drives the cleaning component 400 to move, the universal wheels at the bottom of the cleaning component 400 will bear most of the weight pressure, thereby reducing the pressure on the power component 300 caused by the cleaning component 400 and its internal structure. However, it should be noted that the travel path of the universal wheels needs to be cleared before the device is working, so as to avoid the universal wheels getting stuck when moving.

[0031] like Figure 9 and Figure 10 As shown, the collection assembly 700 includes a reciprocating threaded rod 701 slidably installed inside the housing 401. The upper and lower ends of the reciprocating threaded rod 701 are connected to the housing 401 by two springs 706. Rollers 702 and collection cylinders 705 are rotatably installed at the upper and lower ends of the reciprocating threaded rod 701, and a flow collector 703 is threadedly installed in the middle of the reciprocating threaded rod 701. The flow collector 703 has a slot inside and is connected to the inside of the collection cylinder 705 through a telescopic cylinder 704.

[0032] The telescopic cylinder 704 is hollow inside and has a slot at the bottom. The inside of the collecting cylinder 703 is connected to the collecting cylinder 705 through the telescopic cylinder 704.

[0033] The power assembly 300 includes a motor 301 fixed inside the housing 401. The output shaft of the motor 301 passes through the housing 401 and is connected to a gear shaft assembly. The gear shaft assembly consists of gear shafts 302 arranged through the vertices of three isosceles triangles. A bidirectional spring telescopic rod 304 is connected between the gear shafts 302 located at both ends of the base of the triangles. The three gear shafts 302 mesh with each other and drive each other. Two adjacent gear shafts 302 are movably connected by a limiting plate 303.

[0034] The power assembly 300 includes a motor 301 fixed inside the housing 401. The output shaft of the motor 301 passes through the housing 401 and is connected to a gear shaft 302. The gear shaft 302 (the gear shaft assembly is composed of gear shafts 302 arranged through the vertices of three isosceles triangles, and the gear shafts 302 located at the two ends of the base of the triangle are connected by a 304) is connected to two other gear shafts 302 through two limiting plates 303. The gear shaft 302 meshes with the other two gear shafts 302. The two gear shafts 302 are connected by a bidirectional spring telescopic rod 304 and are slidably installed inside the running track 200.

[0035] The above scheme is adopted as follows: Since the water flow itself has a certain weight, it will flow downward after entering the moisturizing cloth 100. Since the collecting component 700 is in close contact with the moisturizing cloth 100, when the device moves, the collecting component 700 rotates through the moisturizing cloth 100 and squeezes the water inside the moisturizing cloth 100. Most of the water flow will enter the inside of the collecting cylinder 703 and the collecting cylinder 705, and a small amount of water flow will fall on the contact surface between the main tower and the concrete ground, ensuring that it is moist. The water flow collected by the collecting component 700 can also be reused. When the collecting cylinder 703 rolls, according to the thread groove on the outside of the reciprocating threaded rod 701, the collecting cylinder 703 moves back and forth in an up-and-down state, so that each part of the lower end of the moisturizing cloth 100 can collect excess water, so as to make the moisturizing effect of the upper and lower parts of the moisturizing cloth 100 the same as possible, and prevent uneven moisturizing during the operation of the device.

[0036] Working principle and usage process of this invention: Wet the moisturizing cloth 100 and wrap it around the outside of the main tower. Then install the running track 200 and other components. The area of ​​the moisturizing cloth 100 and the specifications of the running track 200 can be changed according to the actual situation. When the moisture inside the moisturizing cloth 100 is insufficient, connect the slot on the side of the pipe 501 to the water pipe of the external water supply vehicle, turn on the device, and the power component 300 drives the cleaning component 400 to move according to the slot inside the running track 200. The water supply vehicle needs to move with the device at the same time. Motor 404 starts and drives two turbines 407 to rotate through its output shaft and chain 406. The cleaning pipe 402 generates wind to blow away impurities and debris from the moisturizing cloth 100. The collection pipe 403 generates suction to suck up impurities, thereby reducing the pollution to the environment when the device is working. The turbine 407 drives the fan 601 to rotate. According to the external thread groove of the fan 601 and the restriction of the outer shell 401 on the guide component 602, the guide component 602 moves and pushes the push rod 504 to rise through the tension spring 604. The baffle 503 tilts and engages with the slot of the limiting tube 502. The water flow is released through the pipe 501 and the limiting tube 502. The wind force generated by the fan 601 blows the water flow and evenly sprays it into the interior of the moisturizing cloth 100. The moisturizing cloth 100 keeps the surface of the main tower moist. The water has a certain weight. After entering the moisturizing cloth 100, it will flow downward. Since the outside of the collecting component 700 is in close contact with the outside of the moisturizing cloth 100, when the device moves, the collecting component 700 will squeeze the water inside the moisturizing cloth 100. Most of the water will enter the inside of the collecting cylinder 703 and the collecting cylinder 705. A small amount of water will fall on the contact surface between the main tower and the concrete ground, keeping it moist. The water collected by the collecting component 700 can also be reused. When the collecting cylinder 703 rolls, according to the thread groove on the outside of the reciprocating threaded rod 701, the collecting cylinder 703 reciprocates up and down, thereby allowing excess water at the lower end of the moisturizing cloth 100 to be completely collected.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A curing device suitable for long-term crack prevention and maintenance of concrete at the base of a main tower, comprising a moisture-retaining cloth, the outer portion of which covers two running tracks, characterized in that: It also includes cleanup components; The cleaning component is connected to the running track via a power component. There are four running tracks in total, with two tracks forming a group. Each group of running tracks is located at the top and bottom of the cleaning component. The bottom of the cleaning component is equipped with two casters. A blocking assembly, wherein the blocking assembly is disposed inside the cleaning assembly; A collection component, which is slidably mounted inside the cleaning component; A diversion component is rotatably mounted inside a cleaning component and driven by the cleaning component; The cleaning assembly includes a housing that is slidably mounted to a running track via each set of the power components; The diversion assembly includes a fan rotatably mounted inside the housing, a guide assembly externally threaded to the fan, the guide assembly horizontally moving inside the housing, the guide assembly being connected to the housing via a tension spring, and push rods hinged to both sides of the guide assembly; The baffle assembly includes a pipe fixed inside the housing, a slot for connecting a water supply truck is provided on the side of the pipe, a limit tube is fixed at equal intervals on the outside of the pipe, a baffle is rotatably installed on the outside of the limit tube, and the outside of the baffle is hinged to the push rod through a push rod. The outer shell restricts the guide assembly to move only horizontally. The cleaning assembly drives the fan to rotate. The guide assembly moves horizontally according to the threaded groove on the outside of the fan. The guide assembly pushes the baffle to a horizontal state through the push rod and the guide rod. The air force generated by the fan rotation passes through the baffle assembly and blows to the outside of the moisturizing cloth. The water supply truck injects water into the limiting pipe through the pipeline. After the baffle is in a horizontal state, the groove inside the baffle is connected to the limiting pipe. The water flows out through the groove inside the baffle. The wind force generated by the fan rotation blows the water horizontally and distributes it to the outside of the moisturizing cloth. The cleaning assembly also includes cleaning pipes and collection pipes fixed on both sides of the housing. The interior of the cleaning pipes and collection pipes are connected to the interior of the housing. A second motor is fixed inside the housing. The output shaft of the second motor passes through the housing and is fixed with a turntable. The output shaft of the housing is connected to a turbine via a chain drive. The turbine has two parts and is connected by a second chain drive. The air generated by the rotation of the turbine is discharged through the cleaning pipe, and the suction generated is used to absorb impurities and debris from the outside of the moisturizing cloth through the collection pipe. The collection pipe is equipped with a filter screen.

2. The curing device for long-term curing of concrete at the root of the main tower according to claim 1, characterized in that: The bottom of the housing is equipped with two casters, which are used to support the movement of the cleaning components.

3. The curing device for long-term curing of concrete at the root of the main tower according to claim 1, characterized in that: The collection assembly includes a reciprocating threaded rod slidably installed inside the housing. The upper and lower ends of the reciprocating threaded rod are connected to the housing through two springs. Rollers and collection cylinders are rotatably installed at the upper and lower ends of the reciprocating threaded rod, and a flow collecting cylinder is threadedly installed in the middle of the reciprocating threaded rod. The flow collecting cylinder has a slot inside and is connected to the inside of the collection cylinder through a telescopic cylinder.

4. The curing device for long-term curing of concrete at the root of the main tower according to claim 3, characterized in that: The telescopic cylinder is hollow inside and has a slot at the bottom. The inside of the collecting cylinder is connected to the collecting cylinder through the telescopic cylinder.

5. The curing device for long-term curing of concrete at the root of the main tower according to claim 1, characterized in that: The power assembly includes a motor fixed inside the housing. The output shaft of the motor passes through the housing and is connected to a gear shaft assembly. The gear shaft assembly consists of gear shafts arranged through the vertices of three isosceles triangles. A bidirectional spring telescopic rod is connected between the gear shafts located at the two ends of the base of the triangles. The three gear shafts mesh with each other and drive each other. Two adjacent gear shafts are movably connected by a limiting plate.

6. A method for long-term maintenance of concrete at the root of a main tower to prevent cracking, which adopts a maintenance device as described in any one of claims 1-5, and the specific steps are as follows; S01. After the concrete is poured, a curing device shall be used for initial curing to keep the concrete surface moist and prevent drying shrinkage cracks caused by excessive water loss. The initial curing time shall not be less than 7 days. S02. After the initial curing is completed, the intermediate curing is carried out. Temperature and humidity sensors are installed to monitor the temperature and humidity changes inside the concrete in real time. Based on the monitoring data, water is automatically sprayed through a curing device suitable for the long-term curing method of preventing cracking of the concrete at the root of the main tower to replenish water to the concrete in a timely manner and keep the internal humidity of the concrete stable. The intermediate curing time is not less than 30 days. S03. After the mid-term curing is completed, long-term curing is carried out. The stress state of the concrete is monitored by the pre-embedded stress sensors. When abnormal stress changes are found, measures are taken in time to reinforce the concrete and prevent cracks from forming. The long-term curing time is set according to the needs of the project. S04. During the curing process, the compaction degree of the concrete shall be tested regularly to ensure that the density of the concrete meets the design requirements. S05. Throughout the maintenance process, wireless transmission technology is used to transmit monitoring data such as temperature, humidity, and stress to a remote monitoring center in real time for data analysis and processing.

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