A super-retarding stable stone paving edge moisture device

Abstract

This utility model discloses a moisture-retaining device for the edge of ultra-slow-setting stabilized crushed stone paving. The device is installed on the paver and includes a water tank containing a pressure cylinder. Inside the pressure cylinder is a piston rod with a piston at one end and a retainer at the other. A handle is attached to one end of the retainer and connected to the other end of the piston rod. A water pipe is connected to one end of the water tank, with one end connected to a drain valve. The other end of the drain valve is connected to a flow meter, which is then connected to an atomizing nozzle. This device solves the problem of moisture loss at the edge of the paver's mixture during multi-layer continuous paving of ultra-slow-setting stabilized crushed stone base courses under conditions such as sunlight and strong winds. Water is replenished synchronously with the paving process to compensate for the lost moisture and ensure the quality of the edge work.

Description

Technical Field

[0001] This utility model belongs to the field of road engineering construction technology, specifically relating to a moisture-retaining device for the edge of ultra-slow-setting stabilized crushed stone paving. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] Water-stabilized base course construction, also known as cement-stabilized base course construction, is a core pavement base course construction technique in infrastructure construction such as highways, municipal roads, and airport runways. Essentially, it involves using cement as a binder, mixing it with inorganic aggregates (skeleton materials) such as crushed stone, gravel, and fly ash in a designed ratio, adding an appropriate amount of water, and then thoroughly mixing the mixture. Through processes such as paving, compaction, and curing, a high-strength, highly stable pavement load-bearing layer is formed, providing solid support for subsequent asphalt or cement concrete surface layers.

[0004] In the construction of water-stabilized base courses, when there is a tight schedule and traffic needs to be opened ahead of schedule, a multi-layer continuous paving technique using ultra-slow-setting stabilized crushed stone is often adopted. This ensures that the multi-layer continuous paving is completed before the stabilized crushed stone has initially set. However, multi-layer continuous paving of the base course involves a long construction time, and the mixture at the edges of the paver is directly exposed to the elements. Under conditions such as sunlight and strong winds, moisture evaporates quickly, resulting in significant moisture loss, especially in the high temperatures or windy conditions of summer, which affects the compaction effect of the mixture at the edges. During construction, to ensure the moisture content of the mixture within the paving width and to guarantee quality, the paving width is often widened. After construction, any mixture that does not meet quality requirements is removed, resulting in material waste. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a moisture-retaining device for the edge of ultra-slow-setting stabilized crushed stone paving. This device can solve the problem of moisture loss in the edge mixture of the ultra-slow-setting stabilized crushed stone base layer under conditions such as sunlight and strong winds during multi-layer continuous paving construction. Water is replenished in advance during construction and paving to compensate for the lost moisture and ensure the quality of the edge project.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A moisture-retaining device for the edge of a super-slow-setting stabilized crushed stone paver is disclosed. The device is installed on a paver and includes a water tank. A pressure cylinder is installed inside the water tank, and a piston rod is installed inside the pressure cylinder. A piston is installed at one end of the piston rod, and a retainer is installed at the other end of the piston rod. A handle is installed at one end of the retainer and connected to the other end of the piston rod. A water pipe is installed at one end of the water tank, and one end of the water pipe is connected to one end of a drain valve. The other end of the drain valve is connected to a flow meter, and one end of the flow meter is connected to an atomizing nozzle.

[0007] As a further technical solution, one end of the water pipe is connected to the water tank, the other end of the water pipe is connected to the drain valve, and a filter screen is installed inside the water pipe.

[0008] As a further technical solution, the flow meter is provided with connecting nuts at both ends, with a first pipe joint at the end of the connecting nut at one end and a second pipe joint at the end of the connecting nut at the other end.

[0009] As a further technical solution, the end of the first pipe connector is connected to the drain valve, and the end of the second pipe connector is connected to the atomizing nozzle.

[0010] As a further technical solution, a water filling switch is provided on the upper part of the water tank, and a sealing ring is provided at the connection position between the water filling switch and the water tank.

[0011] As a further technical solution, an air vent valve is provided on the top of the water tank, and the air vent valve is installed on the water tank.

[0012] As a further technical solution, a water level gauge is provided on the side of the water tank, and the water level gauge is connected to the water tank.

[0013] As a further technical solution, a directional valve is provided at the lower end of the pressure cylinder.

[0014] As a further technical solution, a support rod is provided in the middle of the handle, and one end of the support rod is fixedly connected to the handle; a caster wheel is provided at the bottom of the water tank.

[0015] As a further technical solution, the piston includes an upper plastic block, a lower plastic block, and a rubber ring, with the lower plastic block disposed at the lower end of the upper plastic block; notches are provided on the sides of the upper and lower plastic blocks, and the rubber ring is fitted onto the notch.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are: This utility model's moisture-retaining device is installed on the paver, enabling simultaneous moisture retention and paving operations. It solves the problem of rapid moisture loss from the paver's edge mixture due to sunlight and strong winds during multi-layer continuous paving of ultra-slow-setting stabilized crushed stone base courses. Before construction, water is added to the tank via the water level gauge connected to the side of the tank. The water level is monitored until the high water level is reached, at which point the water level switch is closed. Pressurization is then achieved through the pressurization device. Raising the handle moves the piston rod downwards, causing the piston to move from top to bottom. The edge of the rubber ring forms a seal with the pressurization cylinder, and simultaneously, the directional valve opens, injecting air into the tank. Lowering the handle pulls the piston rod upwards, causing the piston to move from bottom to top. The directional valve closes, and the edge of the rubber ring forms a seal with the pressurization cylinder, increasing the volume of the cavity below the piston and creating a partial vacuum. This process is repeated to complete pressurization. The directional valve remains closed under the action of compressed air to maintain the tank pressure. During construction, the water valve is opened, and the water, under the pressure of the water tank, passes through the filter screen and flow meter in the water pipe in sequence. Then, it is atomized into fine water droplets and sprayed out by the atomizing nozzle. As the paver moves, water is replenished to the edge mixture to make up for the moisture loss and avoid the compaction effect of the edge mixture due to insufficient moisture, thus ensuring the quality of the edge project. Attached Figure Description

[0017] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0018] Figure 1 This is a structural diagram of the ultra-slow-setting and stabilized crushed stone paving edge moisturizing device of this utility model; Figure 2 This is a structural diagram of the installation location of the flow meter according to this utility model; Figure 3 This is a schematic diagram of the piston structure of this utility model; In the diagram: 1. Water tank; 2. Pressure cylinder; 3. Piston rod; 4. Piston; 401. Upper plastic block; 402. Rubber ring; 403. Lower plastic block; 404. Notch; 5. Directional valve; 6. Handle; 7. Support rod; 8. Fixture; 9. Air vent valve; 10. Water pipe; 11. Drain valve; 12. Flow meter; 13. Atomizing nozzle; 14. First pipe connector; 15. Connecting nut; 16. Second pipe connector; 17. Water filling switch; 18. Caster wheel; 19. High water level point; 20. Water level gauge. Detailed Implementation

[0019] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0020] In the construction of water-stabilized base courses, when there is a tight schedule and traffic needs to be opened ahead of schedule, a multi-layer continuous paving technique using ultra-slow-setting stabilized crushed stone is often adopted. This ensures that the multi-layer continuous paving is completed before the stabilized crushed stone has initially set. However, multi-layer continuous paving of the base course involves a long construction time, and the mixture at the edges of the paver is directly exposed to the elements. Under conditions such as sunlight and strong winds, moisture evaporates quickly, resulting in significant moisture loss, especially in the high temperatures or windy conditions of summer, which affects the compaction effect of the mixture at the edges. During construction, to ensure the moisture content of the mixture within the paving width and to guarantee quality, the paving width is often widened. After construction, any mixture that does not meet quality requirements is removed, resulting in material waste.

[0021] The present invention will now be described in detail with reference to the accompanying drawings. This embodiment discloses a moisture-retaining device for the edge of ultra-slow-setting stabilized crushed stone paving, such as... Figure 1 As shown, the moisturizing device is installed on the paver and includes a water tank 1. A pressure cylinder 2 is installed inside the water tank 1. A piston rod 3 is installed inside the pressure cylinder 2. A piston 4 is installed at one end of the piston rod 3. A retainer 8 is installed at the other end of the piston rod 3. A handle 6 is installed at one end of the retainer 8. The handle 6 is connected to the other end of the piston rod 3. A water pipe 10 is installed at one end of the water tank 1. One end of the water pipe 10 is connected to one end of the drain valve 11. The other end of the drain valve 11 is connected to the flow meter 12. One end of the flow meter 12 is connected to the atomizing nozzle 13.

[0022] Specifically, the moisture-retaining device is installed on the paver and moves synchronously with it, enabling the moisture-retaining operation to be carried out simultaneously with the paving operation. This solves the problem of rapid moisture loss of the mixture at the edge of the paver due to sun exposure, strong winds, etc., during the multi-layer continuous paving construction of ultra-slow-setting stabilized crushed stone base course.

[0023] Before construction, turn on the water filling switch 17 to add water to the water tank 1, and observe the water level through the water level gauge 20 connected to the side of the water tank 1. Turn off the water filling switch 17 when the high water level mark is reached. The water filling switch 17 is a screw cap, which can be unscrewed when opening. Stop adding water when the high water level mark 19 is reached on the water level gauge 20.

[0024] Then, pressure is applied through the pressurizing device. Lifting the handle 6 moves the piston rod 3 downward, and the piston 4 moves from top to bottom. The edge of the rubber ring 402 forms a seal with the pressurizing cylinder 2, and at the same time, the directional valve 5 opens, allowing air to be injected into the water tank 1. Pressing the handle 6 pulls the piston rod 3 upward, and the piston 4 moves from bottom to top. The directional valve 5 closes, and the edge of the rubber ring 402 forms a seal with the pressurizing cylinder 2, and the volume of the cavity below the piston 4 increases, creating a partial vacuum. Repeated operation completes the pressurization. The directional valve 5 remains closed under the action of compressed air to maintain the pressure in the water tank 1.

[0025] The water discharge valve 11 is a ball valve. During construction, the water discharge valve 11 is opened, and the water passes through the filter screen and flow meter 12 in the water pipe 10 under the pressure of the water tank 1. Then, it is atomized and sprayed out by the atomizing nozzle 13 to form fine water droplets. As the paver moves, water is replenished to the edge mixture to make up for the water loss and avoid the impact of insufficient water on the compaction effect of the edge mixture, thus ensuring the quality of the edge project.

[0026] like Figure 2 As shown, one end of the water pipe 10 is connected to the water tank 1, and the other end of the water pipe 10 is connected to the drain valve 11. A filter screen is installed inside the water pipe 10. Connecting nuts 15 are installed at both ends of the flow meter 12. A first pipe connector 14 is installed at the end of one connecting nut 15, and a second pipe connector 16 is installed at the end of the other connecting nut 15. The end of the first pipe connector 14 is connected to the drain valve 11, and the end of the second pipe connector 16 is connected to the atomizing nozzle 13.

[0027] Specifically, the flow meter 12 is connected to the drain valve 11 and the adjustable atomizing nozzle 13 via connecting nuts 15 at both ends and the first pipe connector 14 and the second pipe connector 16, respectively. During construction, the knob of the adjustable atomizing nozzle 13 can be rotated to precisely adjust the water output in conjunction with the reading of the flow meter 12. The principle is based on the calculation of the amount of water required for the edge of the ultra-slow-setting stabilized crushed stone. By rotating the knob of the atomizing nozzle 13, the opening of the flow-stopping needle valve is changed, thereby adjusting the water flow. The flow meter 12 displays the water volume in real time, ensuring that the amount of water added matches the actual moisture loss of the edge mixture. This avoids compaction quality problems caused by insufficient water addition and prevents excessive water addition from affecting the performance of the mixture, ensuring that the quality of the edge project meets the specifications.

[0028] The filter screen installed inside the water pipe 10 can filter the water flowing out of the water tank 1, preventing impurities from clogging the water pipe 10, flow meter 12 or atomizing nozzle 13, ensuring smooth water flow, guaranteeing the continuity and stability of water replenishment operations, and further ensuring the effect of synchronous water replenishment.

[0029] A water filling switch 17 is installed on the upper part of the water tank 1, and a sealing ring is installed at the connection position between the water filling switch 17 and the water tank 1.

[0030] Specifically, sealing rings are installed at the connection points of the water filling switch 17 and the water tank 1, and at the connection points of the air vent valve 9 and the water tank 1, to prevent water and air leakage during the water filling and pressure holding process, further ensuring the stability of the pressure inside the water tank 1, ensuring that the water replenishment operation is not affected by pressure fluctuations, and improving the stability of the moisturizing effect.

[0031] A vent valve 9 is installed on the top of the water tank 1. Specifically, after construction is completed, opening the vent valve 9 knob can quickly release the gas in the water tank 1, facilitating the disassembly, relocation, and subsequent storage of the device, reducing construction completion time, and improving overall construction efficiency.

[0032] A water level gauge 20 is installed on the side of water tank 1, and the water level gauge 20 is connected to water tank 1. Specifically, the water level gauge 20 is connected to water tank 1, which can intuitively display the water level in water tank 1, so that operators can understand the water level in time and add water in time, avoid interruption of water replenishment due to water shortage, ensure the continuity of moisturizing operation, and indirectly ensure the quality of the edge project.

[0033] A support rod 7 is provided in the middle of the handle 6, and one end of the support rod 7 is fixedly connected to the handle 6. Specifically, the support rod 7 serves as the fulcrum of the handle 6, facilitating the application of force to move the piston 4. A caster wheel 18 is provided at the bottom of the water tank 1. Specifically, before use, the water replenishment and moisturizing device is placed at an appropriate position on the side of the paver, and the brake button of the caster wheel 18 is pressed to secure it.

[0034] like Figure 3 As shown, the piston 4 includes an upper plastic block 401, a lower plastic block 403, and a rubber ring 402. The lower plastic block 403 is provided at the lower end of the upper plastic block 401. Notches 404 are provided on the sides of the upper plastic block 401 and the lower plastic block 403, and the rubber ring 402 is fitted at the notch 404.

[0035] Specifically, piston 4 consists of an upper plastic block 401, a lower plastic block 403, and a rubber ring 402. The upper and lower plastic blocks 403 have notches 404 on their sides, and the rubber ring 402 is fitted onto the notches 404. When the handle 6 is raised to apply pressure, the edge of the rubber ring 402 rises and tightly seals against the inner wall of the pressure cylinder 2, forming a seal. When the handle 6 is pressed down to draw air out, the edge of the rubber ring 402 falls and similarly seals against the inner wall of the pressure cylinder 2. This structure ensures no air leakage during pressurization and effectively forces air into the water tank 1 to establish stable pressure.

[0036] A directional valve 5 is installed at the lower end of the pressure cylinder 2. The directional valve 5 can be closed, opened upwards, and opened downwards. The directional valve 5 is open when pressurizing and closed when evacuating and maintaining pressure, which can maintain the pressure in the water tank 1, provide power for the continuous spraying of water, and ensure that the atomizing nozzle 13 can continuously and stably spray water mist onto the side mixture, achieving reliable moisturizing.

[0037] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A moisture-retaining device for the edge of an ultra-slow-setting stabilized crushed stone pavement, wherein the moisture-retaining device is installed on the paver, characterized in that, The device includes a water tank, a pressure cylinder inside the water tank, a piston rod inside the pressure cylinder, a piston at one end of the piston rod, a retainer at the other end of the piston rod, a handle at one end of the retainer, and the handle being connected to the other end of the piston rod; a water pipe is connected to one end of the water tank, one end of the water pipe being connected to one end of a drain valve, the other end of the drain valve being connected to a flow meter, and one end of the flow meter being connected to an atomizing nozzle.

2. A super-retarding stabilised stone paving edge moisture retaining device as claimed in claim 1, wherein, One end of the water pipe is connected to the water tank, and the other end of the water pipe is connected to the drain valve. A filter screen is installed inside the water pipe.

3. A super-cement-stable stabilized macadam paving edge part moisture retaining device according to claim 2, characterized in that, The flow meter is provided with connecting nuts at both ends. A first pipe joint is provided at the end of the connecting nut at one end, and a second pipe joint is provided at the end of the connecting nut at the other end.

4. A super-cement-stable stabilized macadam paving edge portion moisture retaining device according to claim 3, wherein The end of the first pipe connector is connected to the drain valve, and the end of the second pipe connector is connected to the atomizing nozzle.

5. A super-stable stabilized macadam paving edge moisture retaining device according to claim 1, wherein A water filling switch is provided at the top of the water tank, and a sealing ring is provided at the connection position between the water filling switch and the water tank.

6. A super-stable stabilized macadam paving edge moisture retaining device according to claim 5, wherein An air vent valve is installed on the top of the water tank.

7. The ultra-slow-setting stabilized crushed stone paving edge moisturizing device as described in claim 1, characterized in that, A water level gauge is installed on the side of the water tank, and the water level gauge is connected to the water tank.

8. A super-stable stabilized macadam paving edge moisture retaining device according to claim 1, wherein A directional valve is installed at the lower end of the pressure cylinder.

9. A super-stable stabilized macadam paving edge moisture retaining device according to claim 1, wherein A support rod is provided in the middle of the handle, and one end of the support rod is fixedly connected to the handle; a caster wheel is provided at the bottom of the water tank.

10. A super-stable stabilized macadam paving edge moisture retaining device according to claim 1, wherein The piston includes an upper plastic block, a lower plastic block, and a rubber ring. The lower plastic block is located at the lower end of the upper plastic block. Notches are provided on the sides of the upper and lower plastic blocks, and the rubber ring is fitted onto the notches.

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