Surface anti-crack maintenance device for cast-in-place concrete expansion reinforcing band

Abstract

The invention discloses a cast-in-place concrete expansion reinforcing band surface anti-crack maintenance device which comprises a vehicle body, a water tank arranged on the vehicle body and an output mechanism used for outputting water from the water tank. The output mechanism comprises a first output end used for outputting water through standard water pressure and a second output end used for outputting the water in a pressurized mode, the second output end is provided with a conical barrel, and the radial width of the conical barrel is gradually reduced from a water input port of the conical barrel to a water output port of the conical barrel. The conic cylinder is provided with a water outlet used for outputting water. The maintenance device is convenient to operate, is provided with double water outlet ends, can pressurize and output water, and is larger in maintenance range and more uniform in water spraying.

Description

Technical Field

[0001] The present invention relates to the technical field of anti-cracking maintenance of concrete surfaces, and specifically to an anti-cracking maintenance device for the surface of cast-in-place concrete expansion strengthening belts. Background Technique

[0002] In modern construction projects, cast-in-place concrete structures are widely used. As a key structural measure to control concrete shrinkage cracks and improve the integrity of the structure, the maintenance quality of cast-in-place concrete expansion strengthening belts plays a decisive role in the durability and stability of building structures. Currently, for the anti-cracking maintenance of the surface of cast-in-place concrete expansion strengthening belts, traditional methods such as manual watering, covering with plastic films or geotextiles are mostly used. Among them, manual watering has low efficiency, high labor intensity, and is affected by human factors, prone to uneven watering and untimely maintenance, making it difficult to ensure that the surface of the concrete expansion strengthening belt is continuously in a suitable humidity environment, thus unable to effectively inhibit crack generation. To solve the above problems, technicians in the existing concrete maintenance field use automatic maintenance vehicles to monitor and maintain the concrete surface throughout the day. However, this type of automatic maintenance vehicle needs to move the whole vehicle for watering, and the spraying system cannot output water with increased pressure. In some corners of the surface of concrete expansion strengthening belts, it is difficult to water and maintain through the existing spraying system. Inadequate maintenance is likely to cause the concrete to crack, resulting in a reduction in the strength of the strengthening belt. Moreover, in some positions where it is inconvenient for the maintenance vehicle to move, it is difficult for the mobile maintenance vehicle to reach the positions that need watering and maintenance. Summary of the Invention

[0003] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide an anti-cracking maintenance device for the surface of cast-in-place concrete expansion strengthening belts to solve the problems of insufficient water spraying pressure, inconvenient movement, and uneven spraying of the maintenance device mentioned in the above background technique.

[0004] To achieve the above purpose, the present invention provides the following technical solution: An anti-cracking maintenance device for the surface of cast-in-place concrete expansion strengthening belts, including a vehicle body, a water tank arranged on the vehicle body, and an output mechanism for outputting water from the water tank. The output mechanism includes a first output end for outputting water with standard water pressure and a second output end for outputting water with increased pressure. The second output end is provided with a conical cylinder, and the radial width of the conical cylinder is gradually reduced from the mouth for inputting water of the conical cylinder to the mouth for outputting water of the conical cylinder. The conical cylinder is provided with a water outlet for outputting water.

[0005] As a further improvement of the present invention, a pressure increasing valve and a motor for driving the pressure increasing valve to operate are arranged between the conical cylinder and the water tank. A seal is formed between the water tank and the pressure increasing valve, and a seal is formed between the pressure increasing valve and the conical cylinder. The water tank, the pressure increasing valve, and the conical cylinder are connected in communication, and the water in the water tank can enter the conical cylinder through the pressure increasing valve.

[0006] As a further improvement of the present invention, a first gear is provided on the outer peripheral wall of the pressure increasing valve, a second gear for driving the first gear to rotate is provided on the motor, and the first gear meshes with the second gear.

[0007] As a further improvement of the present invention, a conical guiding surface with a lower inner circle and a higher outer circle for guiding the water in the water tank to the second output end is provided on one side of the water tank facing the second output end. A through hole for outputting the water in the water tank is provided in the middle of the conical guiding surface, and the through hole communicates with the second output end.

[0008] As a further improvement of the present invention, at least one spray pipe is provided at a position corresponding to the water outlet of the second output end. The spray pipe is inclined from the direction of the water outlet towards the outer side of the water tank, and an arc-shaped transition surface is provided at the connection between the spray pipe and the water outlet.

[0009] As a further improvement of the present invention, the spray pipes are circumferentially and uniformly arranged along the axial center position of the conical cylinder corresponding to the circumference of the water outlet.

[0010] As a further improvement of the present invention, at least one of the spray pipes is provided with an atomizing nozzle for atomizing and outputting water.

[0011] As a further improvement of the present invention, sealing rings are provided on both the end face of the pressure increasing valve facing the water tank and the end face facing the conical cylinder. The two sealing rings are respectively embedded in the end face of the pressure increasing valve facing the water tank and the end face facing the conical cylinder. The sealing ring on the end face of the pressure increasing valve facing the water tank can contact the water tank, and the sealing ring on the end face facing the conical cylinder can contact the conical cylinder.

[0012] As a further improvement of the present invention, the inner wall of the conical cylinder is a smooth surface.

[0013] Compared with the prior art, the present invention provides a surface anti-cracking maintenance device for cast-in-place concrete expansion strengthening belts, which has the following beneficial effects: The output mechanism has a first output end and a second output end. The first output end outputs water at a standard water pressure, which can achieve large-area and uniform conventional maintenance, ensuring that the concrete surface is fully moist, providing a suitable humidity environment for the hydration reaction of the concrete, reducing shrinkage cracks caused by excessive water evaporation. The conical cylinder provided at the second output end has a structural design with a gradually decreasing radial width, which can form a pressurizing effect in the conical cylinder when the water pressure is stable. When water is output from the water outlet of the conical cylinder, it can accurately act on specific parts of the concrete expansion strengthening belt, such as crack-prone areas or structurally weak areas, in the form of high-pressure fine jets. The high-pressure water flow can penetrate into the pores on the concrete surface, effectively supplement water, enhance the compactness of the concrete, and inhibit the generation and development of cracks. The pressurized water can be sprayed to a farther position when output, and can water and maintain a larger range of the concrete expansion strengthening belt. At the same time, the vehicle body facilitates the flexible movement of the device, and the water tank can store a sufficient amount of maintenance water to ensure continuous maintenance operations, improve the maintenance efficiency and quality, reduce labor costs and labor intensity, and ensure the structural stability and durability of the cast-in-place concrete expansion strengthening belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a sectional structure diagram of the present invention;

[0015] Figure 2 is a structural schematic diagram of the pressure increasing valve of the present invention;

[0016] Figure 3 is the attached drawing of the specification of the present invention Figure 1 is an enlarged view of the structure of part A in the figure;

[0017] Figure 4 is a structural schematic diagram of the atomizing nozzle of the present invention;

[0018] Figure 5 is a structural schematic diagram of the bottom surface of the water tank of the present invention.

[0019] Reference numerals in the drawings: 1, vehicle body; 2, water tank; 3, output mechanism; 4, motor; 5, pressure increasing valve; 31, first output end; 32, second output end; 321, conical cylinder; 322, water outlet; 323, spray pipe; 3231, transition surface; 3232, atomizing nozzle; 51, first gear; 52, second gear; 53, conical guiding surface; 54, through hole; 55, sealing ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following will further elaborate on the present invention in combination with the embodiments given in the attached drawings.

[0021] As shown in the figure, a surface anti-cracking maintenance device for cast-in-place concrete expansion reinforcement belt of the present invention includes a vehicle body 1, a water tank 2 arranged on the vehicle body 1 and an output mechanism 3 for outputting water from the water tank 2, wherein the output mechanism 3 includes a first output end 31 for outputting water by standard water pressure and a second output end 32 for outputting water with boosted pressure, wherein the second output end 32 is provided with a cone 321, wherein the radial width of the cone 321 is gradually reduced from the opening of the cone 321 for inputting water toward the opening of the cone 321 for outputting water, and the cone 321 is provided with a water outlet 322 for outputting water.

[0022] When this solution is implemented, a vehicle body 1 water tank 2 structure is adopted. The vehicle body 1 is welded from steel. Universal wheels with brake devices are installed at the four corners of the bottom to facilitate the movement and fixation of the device at the construction site. The water tank 2 is in the shape of a rectangular parallelepiped and is fixed on the top of the vehicle body 1 by bolts. A water filling port is provided on the top of the water tank 2, and a sealing cover is installed at the water filling port. Those skilled in the art can also set a water level observation window on the side of the water tank 2 or set a water level monitor in the water tank 2 to facilitate the operator to grasp the water volume in the water tank 2 in real time; the first output end 31 and the second output end 32 of the output mechanism 3 are made of corrosion-resistant materials. The pipe made of material is connected to the bottom of the water tank 2, and the corrosion-resistant material is such as PVC material. The water outlet 322 of the first output end 31 can be connected to the nozzle and can be connected to the pipe through a quick connector, which is convenient for disassembly and replacement. When the control valve of the first output end 31 is opened, under the action of the standard water pressure formed by the gravity of the water tank 2 itself, water is evenly sprinkled from the nozzle through the pipe on the surface of the concrete expansion reinforcement belt for comprehensive coverage maintenance; the inner wall of the cone 321 of the second output end 32 is polished to ensure smooth water flow, and a sealing structure is provided at the connection between the cone 321 and external components to ensure the sealing effect. When the control valve of the second output end 32 is opened, the water in the water tank 2 enters the cone 321. As the radial width of the cone 321 gradually decreases, the water flow pressure increases, and the high-pressure water flow is ejected from the water outlet 322 at a high speed, which can accurately perform deep maintenance on the crack-prone areas, corners and other key parts of the concrete expansion reinforcement belt. In addition, the water output and water pressure can be flexibly controlled by adjusting the opening of the control valve according to actual needs. When implementing this solution, the vehicle body 1 is preferably placed in the middle position corresponding to the concrete expansion reinforcement belt. The output mechanism 3 on the vehicle body 1 can output from the center position of the concrete expansion reinforcement belt to the edge position. There is no need to move the vehicle body 1 frequently, and the operation is more convenient. When the water flow rate is constant, the smaller the diameter of the water output pipe, the greater the water flow rate, and the higher the water pressure.

[0023] As a specific embodiment of the improvement, it is characterized in that a pressure increasing valve 5 and a motor 4 for driving the pressure increasing valve 5 to operate are arranged between the conical cylinder 321 and the water tank 2. A seal is formed between the water tank 2 and the pressure increasing valve 5, and a seal is formed between the pressure increasing valve 5 and the conical cylinder 321. The water tank 2, the pressure increasing valve 5, and the conical cylinder 321 are communicated with each other, and the water in the water tank 2 can enter the conical cylinder 321 through the pressure increasing valve 5.

[0024] When implementing this solution, on the basis of arranging the conical cylinder 321, a pressure increasing valve 5 is added to increase the flow rate and water pressure of water. The pressure increasing valve 5 in this solution can be a centrifugal pump disclosed in the prior art. In this solution, the end face of the pressure increasing valve 5 corresponding to the water tank 2 forms a seal after being connected to the water tank 2, and the end face corresponding to the conical cylinder 321 forms a seal after being connected to the conical cylinder 321. This kind of seal refers to a sealing structure for preventing water from leaking out at the connection, and it can be a sealing structure such as setting sealant or sealing lips. After the water tank 2, the pressure increasing valve 5, and the conical cylinder 321 are communicated to form a passage, water can be output from the water tank 2 to the pressure increasing valve 5, and then the motor 4 drives the pressure increasing valve 5 to operate so that the pressure increasing valve 5 can pressurize the water, increase the flow rate, and then output through the water outlet 322 of the conical cylinder 321. The structure is simple and the pressurization effect is good.

[0025] As a specific embodiment of the improvement, a first gear 51 is arranged on the outer peripheral wall of the pressure increasing valve 5, and the motor 4 is provided with a second gear 52 for driving the first gear 51 to rotate. The first gear 51 meshes with the second gear 52; the gear is a helical cylindrical gear.

[0026] When implementing this solution, those skilled in the art firmly install the first gear 51 on the outer peripheral wall of the pressure increasing valve 5 or integrally form the first gear 51 with the pressure increasing valve 5. In this solution, it is preferably set that the first gear 51 is integrally formed with the pressure increasing valve 5, and then the second gear 52 is installed on the motor 4 shaft. Use appropriate bearings and other components to ensure that the motor 4 shaft rotates flexibly. Adjust the positions of the two gears to make them mesh correctly and ensure an appropriate meshing clearance. After assembly, apply a special lubricant to the gears, start the motor 4, and observe whether the gear transmission is stable and whether there is abnormal noise. Monitor the working state of the pressure increasing valve 5, and fine-tune the gear positions or parameters as needed to ensure the stable operation of the system. In this solution, a helical cylindrical gear is preferably used. This kind of gear can be more suitable for a narrow space, runs more smoothly, is not easy to get stuck, and can bear pressure better.

[0027] As a specific embodiment of the improvement, on the side of the water tank 2 facing the second output end 32, a conical guiding surface 53 with a lower inner circle and a higher outer circle is arranged for guiding the water in the water tank 2 to the second output end 32. A through hole 54 for outputting the water in the water tank 2 is opened in the middle of the conical guiding surface 53, and the through hole 54 is communicated with the second output end 32.

[0028] In the implementation of this solution, a conical guiding surface 53 is arranged in the water tank 2. This conical guiding surface 53 is only used to enable the water in the water tank 2 to be concentrated and output through the through hole 54. Since the conical guiding surface 53 has a slope and water itself has weight, in this solution, the side of the water tank 2 facing the second output end 32 is preferably the lower end surface of the water tank 2. Therefore, the water outputs towards the through hole 54 of the conical guiding surface 53 due to its own weight and enters the second output end 32. The structure is simple, and it can make greater use of the water stored in the water tank 2, avoiding water staying in the corners of the water tank 2.

[0029] As a specific implementation of the improvement, at least one spray pipe 323 is arranged at the position corresponding to the water outlet 322 of the second output end 32. The spray pipe 323 is inclined from the direction of the water outlet 322 towards the outside of the water tank 2. An arc-shaped transition surface 3231 is arranged at the connection of the spray pipe 323 and the water outlet 322; the spray pipes 323 are circumferentially and uniformly arranged along the axis of the conical cylinder 321 corresponding to the circumference of the water outlet 322; at least one of the spray pipes 323 is provided with an atomizing nozzle 3232 for atomizing and outputting water.

[0030] In the implementation of this solution, first, select a suitable metal or plastic pipe according to the design requirements to make the spray pipe 323, ensure that the pipe diameter meets the flow requirements and the pipe wall has sufficient strength. During processing, bend it obliquely from the water outlet 322 towards the outside of the water tank 2 at a specified angle, and make a smooth and burr-free arc-shaped transition surface 3231 at the connection of the spray pipe 323 and the water outlet 322 to reduce the water flow resistance; then, at the position of the second output end 32 corresponding to the water outlet 322, accurately mark the points with a measuring tool so that the spray pipes 323 are circumferentially and uniformly arranged along the axis of the conical cylinder 321. The circumferential and uniform arrangement along the axis of the conical cylinder 321 adopted in this solution is to enable a larger spraying range and more uniform spraying of the spray pipes 323. Those skilled in the art can also adopt a single spray pipe 323 and achieve large-range spraying and uniform spraying by rotating it in other solutions. After that, reserve a suitable interface at the end of the spray pipe 323 where the atomizing nozzle 3232 needs to be installed, screw the nozzle in or snap it firmly, and conduct a water passing test after installation, and adjust the nozzle structure or replace the model according to the effect; those skilled in the art can set one or more atomizing nozzles 3232 according to the spraying requirements.

[0031] As a specific implementation of the improvement, sealing rings 55 are arranged on both the end face of the pressure increasing valve 5 facing the water tank 2 and the end face facing the conical cylinder 321. The two sealing rings 55 are respectively embedded in the end face of the pressure increasing valve 5 facing the water tank 2 and the end face facing the conical cylinder 321. The sealing ring 55 on the end face of the pressure increasing valve 5 facing the water tank 2 can contact the water tank 2, and the sealing ring 55 on the end face facing the conical cylinder 321 can contact the conical cylinder 321.

[0032] In this solution, it is preferably to use the sealing ring 55 as the sealing structure between the booster valve 5 and the water tank 2 and between the booster valve 5 and the conical cylinder 321. The sealing ring 55 is made of sealant and can be embedded on the booster valve 5. It has a good sealing effect and is not easy to affect the connection stability between components. The sealing in this solution is only to prevent water from seeping out through the connection when flowing.

[0033] As a specific improved embodiment, the inner wall of the conical cylinder 321 is a smooth surface.

[0034] In this solution, it is preferably to set the inner wall of the conical cylinder 321 as a smooth surface. Compared with setting other structures for boosting pressure on the inner wall of the conical cylinder 321, setting a smooth surface can save more costs when the booster valve 5 or the conical cylinder 321 is set to meet the water pressure conditions.

[0035] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the concept of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as within the protection scope of the present invention.

Claims

1. A surface anti-cracking maintenance device for cast-in-place concrete expansion reinforcement belt, comprising a vehicle body, a water tank arranged on the vehicle body and an output mechanism for outputting water from the water tank, characterized in that: The output mechanism includes a first output end for outputting water at a standard water pressure and a second output end for outputting water at a boosted pressure. The second output end is provided with a cone, and the radial width of the cone is gradually reduced from the opening of the cone for inputting water toward the opening of the cone for outputting water. The cone is provided with a water outlet for outputting water.

2. The surface anti-cracking maintenance device for cast-in-place concrete expansion reinforcement belt according to claim 1 is characterized in that: A boost valve and a motor for driving the boost valve to operate are provided between the cone and the water tank. A seal is formed between the water tank and the boost valve, and a seal is formed between the boost valve and the cone. The water tank, the boost valve and the cone are connected, and water in the water tank can enter the cone through the boost valve.

3. The surface anti-cracking curing device for cast-in-place concrete expansion reinforcement belt according to claim 2 is characterized in that: The outer peripheral wall of the boost valve is provided with a first gear, and the motor is provided with a second gear for driving the first gear to rotate, and the first gear is meshed with the second gear.

4. The surface anti-cracking maintenance device for cast-in-place concrete expansion reinforcement belt according to claim 1 is characterized in that: The water tank is provided with a conical guide surface with a lower inner circle and a higher outer circle on the side facing the second output end for guiding the water in the water tank to the second output end. A through hole for outputting the water in the water tank is opened in the middle of the conical guide surface, and the through hole is connected to the second output end.

5. The surface anti-cracking maintenance device for cast-in-place concrete expansion reinforcement belt according to claim 2 is characterized in that: At least one spray pipe is arranged at the position of the water outlet corresponding to the second output end. The spray pipe is inclined from the water outlet to the outside of the water tank. An arc-shaped transition surface is arranged at the connection between the spray pipe and the water outlet.

6. The surface anti-cracking curing device for cast-in-place concrete expansion reinforcement belt according to claim 5 is characterized in that: The spray pipes are evenly distributed along the axial center of the cone cylinder corresponding to the water outlets.

7. The surface anti-cracking maintenance device for cast-in-place concrete expansion reinforcement belt according to claim 5 or 6, characterized in that: At least one of the spray pipes is provided with an atomizing nozzle for atomizing and outputting water.

8. The surface anti-cracking curing device for cast-in-place concrete expansion reinforcement belt according to claim 2 is characterized in that: The end surface of the boosting valve facing the water tank and the end surface facing the cone cylinder are both provided with sealing rings, and the two sealing rings are respectively embedded in the end surface of the boosting valve facing the water tank and the end surface facing the cone cylinder. The sealing ring of the end surface of the boosting valve facing the water tank can contact the water tank, and the sealing ring of the end surface facing the cone cylinder can contact the cone cylinder.

9. The surface anti-cracking curing device for cast-in-place concrete expansion reinforcement belt according to claim 1 or 2 or 3 or 4 or 5 or 6 or 8, characterized in that: The inner wall of the cone is a smooth surface.

10. The surface anti-cracking curing device for cast-in-place concrete expansion reinforcement belt according to claim 2, 5, 6 or 8, characterized in that: The gear is a helical cylindrical gear.

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