Watering cooling device for asphalt concrete pavement construction

By designing an automated water spraying and cooling device, the problems of high labor intensity and low efficiency under manual water spraying were solved, and rapid water spraying and cooling of asphalt concrete pavement was achieved, ensuring the safety of construction personnel.

CN224119486UActive Publication Date: 2026-04-14CHINA RAILWAY 19TH BUREAU GRP 1ST ENG +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA RAILWAY 19TH BUREAU GRP 1ST ENG
Filing Date
2025-04-02
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

In current asphalt concrete pavement construction, water spraying for cooling relies on manual operation, resulting in high labor intensity and low efficiency for construction workers.

Method used

A water spraying and cooling device was designed, comprising a water storage tank, a water pump, a water delivery pipe, nozzles, and an exhaust fan. The water delivery pipe angle is adjusted by a rotating disc, and combined with a control panel and casters, it achieves automated water spraying and cooling. It also integrates an exhaust gas collection and treatment system to reduce the harm of asphalt gas to construction workers.

Benefits of technology

This technology enables rapid water spraying to cool asphalt concrete pavements, improving construction efficiency, reducing the labor intensity of construction workers, and minimizing the health hazards of asphalt fumes.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a watering and cooling device for asphalt concrete pavement construction, relates to the field of road construction devices, and mainly aims to solve the problem of low efficiency of spraying and cooling a concrete pavement by manually pulling a water pipe at present. The device comprises a water storage tank body, and walking wheels are arranged on a supporting frame at the bottom of the water storage tank body. A water inlet pipe is arranged at the top of the water storage tank, a drain pipe is arranged at the bottom, a waste gas collecting hopper at the bottom of the water storage tank is connected with an exhaust fan at the top of the water storage tank through an air inlet pipe, and an air outlet pipe of the exhaust fan extends into the water storage tank. A positioning plate is arranged on the lower surface of the water storage tank body, a rotating disc is rotationally connected to the positioning plate, a locking bolt is arranged on the rotating disc, a plurality of sprayers are arranged on the two water conveying pipes, and the inner ends of the water conveying pipes are fixed to the rotating disc. A water suction pump is arranged on the bottom wall in the water storage tank, a water outlet pipe of the water suction pump extends out of the bottom wall of the water storage tank, the bottom of the water outlet pipe is connected with a transverse pipe, and the two ends of the transverse pipe extend into the two water conveying pipes respectively. The device has the advantage of high working efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of road construction equipment, specifically to a water spraying and cooling device for asphalt concrete pavement construction. Background Technology

[0002] Asphalt concrete pavement refers to pavement with asphalt concrete as the surface layer. It is a mixture made by manually selecting mineral aggregates (crushed stone or crushed gravel, stone chips or sand, mineral powder, etc.) with a certain gradation and mixing them with a certain proportion of road asphalt material under strict control conditions.

[0003] After the asphalt concrete road construction is completed, water spraying is usually used to cool the surface of the asphalt concrete. The existing water spraying method is usually to manually pull the water pipe to move and spray, but this method increases the labor intensity of construction workers and is relatively inefficient. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a water spraying and cooling device for asphalt concrete pavement construction, so as to solve the problems of increased labor intensity and low efficiency of construction workers mentioned in the background art.

[0005] The purpose of this utility model is achieved as follows: it includes a water storage tank, with downwardly extending support frames fixed at the left and right ends of the bottom of the water storage tank, and walking wheels installed at the bottom of the support frames.

[0006] The top of the water storage tank is equipped with a water inlet pipe, and the bottom of the water storage tank is equipped with a drain pipe with a valve installed on it. A waste gas collection hopper is fixed at the bottom of the water storage tank, and an exhaust fan is fixed at the top of the water storage tank. The top of the waste gas collection hopper is connected to the inlet of the exhaust fan through an air inlet pipe, and the outlet of the exhaust fan is connected to an air outlet pipe that extends into the bottom of the water storage tank.

[0007] The lower surface of the water storage tank is fixed with a positioning plate, and also includes two rotating disks set at the bottom of the positioning plate. Both rotating disks are rotatably connected to the positioning plate. Both rotating disks are equipped with locking bolts, which extend from the lower surface of the rotating disk into the rotating disk and extend from the upper surface of the rotating disk.

[0008] It also includes two water supply pipes, each equipped with several nozzles arranged in a straight line; the inner ends of the two water supply pipes are fixed to two rotating discs respectively.

[0009] A water pump is installed on the bottom wall of the water storage tank. The water pump's outlet pipe extends from the bottom wall of the water storage tank. A horizontal pipe is connected to the bottom of the outlet pipe. The two ends of the horizontal pipe extend into two water delivery pipes through two rotating discs.

[0010] By rotating the rotary disc, the two water pipes can be positioned at different angles to accommodate different road widths.

[0011] Both support frames are equipped with handles.

[0012] The water storage tank is equipped with a glass observation window, which has scale markings.

[0013] The control panel is installed on the top of the water tank, and the water pump and exhaust fan are electrically connected to the control panel.

[0014] This utility model has the following beneficial effects:

[0015] By incorporating handles, the device facilitates movement by construction workers. The inclusion of a water tank, pump, pipes, and nozzles allows for rapid water spraying and cooling of asphalt concrete pavements. This design enables the device to effectively cool asphalt concrete, improving work efficiency and reducing the workload for construction workers.

[0016] By setting up exhaust gas collection hoppers, air ducts, exhaust fans, and exhaust pipes, asphalt gases can be easily introduced into the water storage tank for a water bath before being discharged into the air through the water inlet pipe, thus reducing the harm of asphalt gases to construction workers. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 yes Figure 1 Enlarged structural diagram at point A;

[0019] Figure 3 This is a side view of the structure of this utility model;

[0020] Figure 4 This is a schematic diagram showing the connection status between the water supply pipe and the rotating disk in this utility model. Detailed Implementation

[0021] The following is combined Figure 1-4 The present invention will be further described below;

[0022] It includes a water storage tank 1, with downward-extending support frames 2 fixed at the bottom left and right ends of the water storage tank, and wheels 3 installed at the bottom of the support frames.

[0023] The top of the water storage tank is equipped with a water inlet pipe 4, and the bottom of the water storage tank is equipped with a drain pipe 5. A valve is installed on the drain pipe. An exhaust gas collection hopper 6 is fixed at the bottom of the water storage tank. An exhaust fan 7 is fixed at the top of the water storage tank. The top of the exhaust gas collection hopper is connected to the inlet of the exhaust fan through an air inlet pipe 8. An exhaust pipe 9 is connected to the outlet of the exhaust fan and extends into the bottom of the water storage tank.

[0024] The lower surface of the water storage tank is fixed with a positioning plate 10, and also includes two rotating disks 11 set at the bottom of the positioning plate. The two rotating disks are rotatably connected to the positioning plate by a shaft. Each of the two rotating disks is provided with a locking bolt 12. The locking bolt extends from the lower surface of the rotating disk into the rotating disk and extends from the upper surface of the rotating disk. Tightening the locking bolt can make the locking bolt press against the lower surface of the positioning plate to achieve the limiting of the rotating disk.

[0025] It also includes two water supply pipes 13, each of which is equipped with several nozzles 14, which are arranged in a straight line; the inner ends of the two water supply pipes are fixed to two rotating disks respectively.

[0026] A water pump 15 is installed on the bottom wall of the water storage tank. The water outlet pipe 16 of the water pump extends from the bottom wall of the water storage tank. A horizontal pipe 17 is connected to the bottom of the water outlet pipe. The two ends of the horizontal pipe extend into two water delivery pipes through two rotating discs.

[0027] The horizontal tube is a stainless steel high-pressure explosion-proof metal braided hose, which can be purchased from the market.

[0028] By rotating the rotary disc, the two water pipes can be positioned at different angles to accommodate different road widths.

[0029] Both support frames are equipped with handles 18. By providing handles, support frames, and casters, the entire device can be easily moved by construction workers.

[0030] The water storage tank is equipped with a glass observation window 19, and the glass observation window is equipped with scale markings.

[0031] The control panel 20 is installed on the top of the water storage tank, and the water pump and exhaust fan are electrically connected to the control panel.

[0032] Working principle: When the asphalt mixing device is needed, the construction personnel can move the entire device by pushing it with the handle. During the movement, the water tank, water pump, water pipe and nozzle are used to quickly spray water to cool the asphalt concrete pavement. The exhaust fan is started, and the asphalt gas is introduced into the water tank for water bathing through the exhaust gas collection hopper, air pipe, exhaust fan and exhaust pipe. Then it is discharged into the air through the water inlet pipe, reducing the harm of asphalt gas to the construction personnel. Thus, the entire device has the effect of conveniently spraying water to cool asphalt concrete, improving work efficiency and reducing the labor intensity of construction personnel.

[0033] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A water spraying and cooling device for asphalt concrete pavement construction, comprising a water storage tank (1), with downwardly extending support frames (2) fixed at the left and right ends of the bottom of the water storage tank, and traveling wheels (3) installed at the bottom of the support frames; characterized in that: The top of the water storage tank is equipped with an inlet pipe (4), the bottom of the water storage tank is equipped with a drain pipe (5), a valve is installed on the drain pipe, the bottom of the water storage tank is fixed with an exhaust gas collection hopper (6), the exhaust fan (7) is fixed on the top of the water storage tank, the top of the exhaust gas collection hopper is connected to the inlet of the exhaust fan through an air inlet pipe (8), the outlet of the exhaust fan is connected with an air outlet pipe (9), and the air outlet pipe extends into the bottom of the water storage tank. The lower surface of the water storage tank is fixed with a positioning plate (10), and also includes two rotating disks (11) set at the bottom of the positioning plate. Both rotating disks are rotatably connected to the positioning plate. Both rotating disks are provided with locking bolts (12). The locking bolts extend from the lower surface of the rotating disk into the rotating disk and extend from the upper surface of the rotating disk. It also includes two water supply pipes (13), each of which is equipped with several nozzles (14), and the inner ends of the two water supply pipes are fixed to two rotating discs respectively. A water pump (15) is installed on the bottom wall of the water storage tank. The water outlet pipe (16) of the water pump extends from the bottom wall of the water storage tank. A horizontal pipe (17) is connected to the bottom of the water outlet pipe. The two ends of the horizontal pipe extend into two water supply pipes respectively.

2. The water spraying and cooling device for asphalt concrete pavement construction according to claim 1, characterized in that: Both support frames are equipped with handles (18).

3. The water spraying and cooling device for asphalt concrete pavement construction according to claim 1 or 2, characterized in that: The water storage tank is equipped with a glass observation window (19), and the glass observation window is equipped with scale markings.

4. The water spraying and cooling device for asphalt concrete pavement construction according to claim 1 or 2, characterized in that: The control panel (20) is installed on the top of the water tank, and the water pump and the exhaust fan are electrically connected to the control panel.

5. The water spraying and cooling device for asphalt concrete pavement construction according to claim 1 or 2, characterized in that: The aforementioned nozzles are arranged in a straight line.