Water spraying device for road detection vehicle

Abstract

This utility model discloses a water spraying device for a road inspection vehicle, including a water storage tank, a water pump installed on one end of the outer wall of the water storage tank, a mounting bracket on one side of the outer wall of the water storage tank, a water spraying assembly at the bottom of the mounting bracket, a water inlet pipe connected to the water inlet of the water pump, a flow control valve installed at the water outlet of the water pump, a water outlet pipe at the upper end of the flow control valve, and a control panel on one side of the outer wall of the water storage tank. This utility model can be used in conjunction with a road inspection vehicle, and when spraying water to simulate a rainy day environment, it will not damage the thickness of the water film sprayed on the road surface, thereby improving the accuracy of detecting the dynamic friction coefficient of the road surface.

Description

Technical Field

[0001] This utility model relates to the field of road inspection technology, and in particular to a water spray device for road inspection vehicles. Background Technology

[0002] Highways, high-grade roads, urban municipal roads, airport runways, and other road surfaces need to have their performance tested after snowfall or snow removal. Vehicles are prone to slipping on the road surface in rainy or snowy weather, so it is necessary to test the friction coefficient of the road surface in rainy or snowy weather. When testing the friction coefficient of the road surface through road inspection, water is usually sprayed on the road surface to form a water film, and then the friction coefficient of the vehicle on that section of the road is tested by braking.

[0003] According to the utility model patent CN208999281U, a road surface dynamic friction coefficient testing device includes a vehicle body, wheels, a 360° rotating camera, a water tank, a test piece instrument, a battery, a high-pressure water nozzle, a rotary sweeping device, a motor, a test result recording display screen, a test instrument on / off switch, a power on / off switch, a dynamic friction test piece, a remote control, a camera display screen, a remote control on / off switch, a water spraying device on / off switch, and a test piece on / off switch. This utility model provides a road surface dynamic friction coefficient testing device. The device uses a moving vehicle to spray water onto the road surface through a high-pressure water nozzle and a rotary sweeping device to clean the road surface, ensuring the dynamic friction test piece detects the water retention and cleanliness of the road surface, thereby detecting the road surface friction coefficient. This solves the problem of poor practicality in detecting the surface friction coefficient of cement and asphalt roads.

[0004] While the above-mentioned technical solution can detect the coefficient of friction of the road surface, in actual use it involves first spraying water and then cleaning with a rotary sweeper. This operation will damage the thickness of the water film sprayed on the road surface, thus affecting the accuracy of detecting the coefficient of friction of the road section when the vehicle brakes. Utility Model Content

[0005] The purpose of this invention is to provide a water spraying device for road inspection vehicles, which can be used in conjunction with road inspection vehicles and will not damage the thickness of the water film sprayed on the road surface when spraying water to simulate a rainy day environment, thereby improving the accuracy of detecting the dynamic friction coefficient of the road surface.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A water spraying device for a road inspection vehicle includes a water storage tank and a water pump installed on one end of the outer wall of the water storage tank. An adjustable-height mounting bracket is provided on one side of the outer wall of the water storage tank. A water spraying assembly is located at the bottom of the mounting bracket. The water spraying assembly includes a first water guide pipe and a second water guide pipe arranged opposite each other, several atomizing nozzles respectively located at the bottom of the first and second water guide pipes and communicating with them, solenoid valves respectively installed at the left and right ends of the second water guide pipe, and connecting pipes respectively located between each solenoid valve and a corresponding end of the first water guide pipe and communicating with it. The inlet of the water pump is connected to an inlet pipe extending to the bottom of the inner wall of the water storage tank, and the outlet of the water pump is equipped with a flow control valve communicating with it. The upper end of the flow control valve is fitted with an outlet pipe communicating with the outer wall of the first water guide pipe. A control panel is provided on one side of the outer wall of the water storage tank.

[0008] By adopting the above technical solution, during use, the water storage tank is first fixedly installed inside the cargo compartment of the road inspection vehicle. Then, the mounting bracket is installed on the frame in front of the inspection wheels of the road inspection vehicle. Next, the control panel is electrically connected to the control components of the road inspection vehicle. Then, the water storage tank is filled with water. When road inspection is performed, the water pump is activated through the control panel, while two solenoid valves are closed. The water pump draws water through the inlet pipe and allows the water to flow through the outlet pipe into the first guide pipe of the spraying assembly and spray it out from the atomizing nozzle to water the road surface. During watering, the flow rate can be controlled by the flow control valve, thereby controlling the thickness of the water film sprayed on the road surface. This can simulate rainy weather for dynamic friction coefficient testing. To increase the thickness of the water film sprayed on the road surface, the two solenoid valves are opened, allowing water to enter the second guide pipe through the connecting pipe. At the same time, the flow rate is increased by the flow control valve. By re-spraying within a unit time, the thickness of the sprayed water film is increased, thereby further improving the accuracy of dynamic friction coefficient detection.

[0009] A further feature of this invention is that a number of wave-damping plates are provided between the left and right sides of the inner wall of the water storage cylinder at equal intervals, and a number of through holes arranged in an array are provided through the outer wall of each wave-damping plate.

[0010] By adopting the above technical solution, when the road inspection vehicle brakes and uses the inspection wheels to detect the coefficient of dynamic friction, it is possible to avoid large-scale shaking of the water in the water tank, which would cause the road inspection vehicle to shake and reduce safety hazards.

[0011] A further feature of this invention is that a limiting ring is provided on the inner wall of the water inlet of the water storage cylinder near its upper end, and a filter screen is detachably connected to the upper end of the limiting ring.

[0012] By adopting the above technical solution, large particulate impurities in the water can be filtered out when filling the water storage tank.

[0013] A further feature of this invention is that a filter is installed at one end of the water inlet pipe that extends into the water storage tank and is connected thereto.

[0014] By adopting the above technical solution, the sedimentation of impurities caused by the long-term presence of water in the water storage tank can be avoided, which would lead to the blockage of the atomizing nozzle.

[0015] A further feature of this invention is that the mounting bracket includes a mounting plate, multiple positioning rods arranged in an array at the bottom of the mounting plate, a slide that is slidably connected to the outer wall of the positioning rods, a threaded hole that passes through the upper end of the outer wall of the mounting plate and extends downwards, and a threaded rod that is threadedly connected to the threaded hole and whose lower end is rotatably connected to the upper end of the outer wall of the slide and is used to control its up and down movement.

[0016] By adopting the above technical solution, not only can the mounting frame be installed according to the height of different road inspection vehicles, but the distance between the water spray component and the inspection road surface can also be flexibly adjusted.

[0017] A further feature of this invention is that a wind deflector is provided at the front end of the outer wall of the carriage to block the front of the water spray assembly.

[0018] By adopting the above technical solution, the impact of wind on the sprayed water can be reduced when the road inspection vehicle moves and sprays water, so that the sprayed water can quickly reach the road surface to form a water film, thereby improving the water spraying effect on the inspection road surface.

[0019] In summary, this utility model has the following beneficial effects:

[0020] Firstly, this utility model can be used in conjunction with a road inspection vehicle, and when spraying water to simulate a rainy day environment, it will not damage the thickness of the water film sprayed on the road surface, thereby improving the accuracy of detecting the dynamic friction coefficient of the road surface.

[0021] Secondly, the water spraying component of this utility model can simulate road conditions on a rainy day by spraying water, and can also control the thickness of the water film sprayed on the road surface according to the actual situation, making it more flexible and convenient to use.

[0022] Thirdly, the mounting frame of this utility model can not only be installed according to the height of different road inspection vehicles, but also flexibly adjust the distance between the water spray component and the road surface to be inspected, thereby improving the water spraying effect on the road surface to be inspected.

[0023] Fourth, the wind deflector of this utility model can reduce the influence of wind on the direction of the sprayed water when the road inspection vehicle moves and sprays water, so that the sprayed water can quickly reach the road surface to form a water film, thereby improving the water spraying effect on the inspection road surface. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 It is mainly used to show the positional connection relationship of each component;

[0026] Figure 3 This is a schematic diagram of the resulting mounting bracket of this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the water spray assembly of this utility model.

[0028] In the diagram: 1. Water storage tank; 11. Limiting ring; 12. Filter screen; 13. Baffle plate; 14. Through hole; 2. Mounting bracket; 21. Mounting plate; 22. Positioning rod; 23. Slide; 24. Threaded hole; 25. Threaded rod; 26. Wind deflector; 3. Water spray assembly; 31. First water guide pipe; 32. Second water guide pipe; 33. Atomizing nozzle; 34. Solenoid valve; 35. Connecting pipe; 4. Water pump; 41. Inlet pipe; 42. Filter; 43. Flow control valve; 44. Outlet pipe; 45. Control panel. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the accompanying drawings.

[0030] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0032] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] Example, refer to Figure 1-4 A water spraying device for a road inspection vehicle includes a water storage tank 1 and a water pump 4 installed on one end of the outer wall of the water storage tank 1. A limiting ring 11 is provided on the inner wall of the water inlet of the water storage tank 1 near its upper end and communicates with it. A filter screen 12 is detachably connected to the upper end of the limiting ring 11 and cooperates with it. Several baffles 13 are arranged at equal intervals between the left and right sides of the inner wall of the water storage tank 1. Several through holes 14 are opened through the outer wall of each baffle 13 and arranged in an array. There is a gap between the upper and lower ends of each baffle 13 and the inner wall of the water storage tank 1. An adjustable mounting bracket 2 is provided on one side of the outer wall of the water storage tank 1 for mounting on the front frame of the road inspection vehicle's inspection wheel.

[0034] Mounting bracket 2 includes mounting plate 21, four positioning rods 22 arranged in an array at the bottom of mounting plate 21, a slide 23 that is slidably connected to the outer wall of the positioning rods 22, a threaded hole 24 that is opened through the upper end of the outer wall of mounting plate 21 and opens downward, and a threaded rod 25 that is threaded to the threaded hole 24 and whose lower end is rotatably connected to the upper end of the outer wall of slide 23 and used to control its up and down movement.

[0035] A water spray assembly 3 is provided at the rear end of the bottom of the slide 23. The water spray assembly 3 includes a first water guide pipe 31 and a second water guide pipe 32 arranged opposite to each other, a number of atomizing nozzles 33 respectively arranged at the bottom of the first water guide pipe 31 and the second water guide pipe 32 and connected to them, solenoid valves 34 respectively installed at the left and right ends of the second water guide pipe 32, and connecting pipes 35 respectively arranged between each solenoid valve 34 and the corresponding end of the first water guide pipe 31 and connected to them. A wind deflector 26 is provided at the front end of the outer wall of the slide 23 to block the front of the water spray assembly 3.

[0036] The inlet of the water pump 4 is connected to an inlet pipe 41 that extends to the bottom of the inner wall of the water storage tank 1. A filter 42 is installed at one end of the inlet pipe 41 that extends into the water storage tank 1. A flow control valve 43 is installed at the outlet of the water pump 4 that is connected to it. An outlet pipe 44 is provided between the upper end of the flow control valve 43 and the outer wall of the first water guide pipe 31 and is connected to it. A control panel 45 is provided on one side of the outer wall of the water storage tank 1. The water pump 4, the solenoid valve 34 and the flow control valve 43 are all electrically connected to the control panel 45.

[0037] Usage: First, fix the water tank 1 inside the truck bed of the road inspection vehicle. Then, install the mounting bracket 2 on the frame in front of the inspection wheels of the road inspection vehicle. Use fixing bolts to fix the mounting plate 21 to the frame. Then, rotate the threaded rod 25 in the threaded hole 24 to allow the slide 23 to slide down the positioning rod 22 with the water spray assembly 3 to an appropriate distance, thereby flexibly adjusting the distance between the water spray assembly 3 and the ground. Then, connect the control panel 45 to the control components of the road inspection vehicle. Then, fill the water tank 1 with water. The filter screen 12 on the limit ring 11 can initially filter impurities in the water to prevent large particles from entering the water tank 1.

[0038] When conducting road testing, the water pump 4 is activated via the control panel 45, while the two solenoid valves 34 are closed. The water pump 4 draws water through the inlet pipe 41 and filters it through the filter 42, allowing the water to flow along the outlet pipe 44 into the first guide pipe 31 of the water spraying assembly 3 and spray it out from the atomizing nozzle 33 to water the road surface. During water spraying, the flow rate can be controlled by the flow control valve 43 to control the thickness of the water film sprayed on the road surface, thereby simulating rainy weather to test the coefficient of dynamic friction.

[0039] To increase the thickness of the water film sprayed on the road surface, the two solenoid valves 34 are opened, allowing water to enter the second water guide pipe 32 through the connecting pipe 35. At the same time, the water flow is increased through the flow control valve 43. By re-spraying within a unit time, the thickness of the sprayed water film is increased, thereby further improving the accuracy of dynamic friction coefficient detection. When spraying water, the wind deflector 26 can block most of the airflow in front of the water spray assembly 3, allowing the water sprayed from the atomizing nozzle 33 to be quickly sprayed onto the road surface. When the road inspection vehicle brakes to measure the friction coefficient, the baffle 13 in the water tank 1 can prevent the water from shaking significantly in the water tank 1 during braking. At the same time, the water can flow normally through the through hole 14 and the gap between the upper and lower baffle 13.

[0040] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment that make creative contributions as needed, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A water spraying device for a road inspection vehicle, comprising a water storage tank (1) and a water pump (4) installed at one end of the outer wall of the water storage tank (1), characterized in that: An adjustable-height mounting bracket (2) is provided on one side of the outer wall of the water storage cylinder (1). A water spray assembly (3) is provided at the bottom of the mounting bracket (2). The water spray assembly (3) includes a first water guide pipe (31) and a second water guide pipe (32) arranged opposite to each other, several atomizing nozzles (33) respectively arranged at the bottom of the first water guide pipe (31) and the second water guide pipe (32) and communicating with them, solenoid valves (34) respectively installed at the left and right ends of the second water guide pipe (32), and solenoid valves (34) respectively installed at each of the solenoid valves (34). A connecting pipe (35) is connected to one end of the first water guide pipe (31) and to both ends. The inlet of the water pump (4) is connected to an inlet pipe (41) that extends to the bottom of the inner wall of the water storage tank (1). The outlet of the water pump (4) is equipped with a flow control valve (43) that is connected to it. The upper end of the flow control valve (43) is connected to the outer wall of the first water guide pipe (31) and an outlet pipe (44) that is connected to it. A control panel (45) is provided on one side of the outer wall of the water storage tank (1).

2. The water spray device for a road inspection vehicle according to claim 1, characterized in that: The water storage cylinder (1) has several wave-damping plates (13) arranged at equal intervals on the left and right sides of its inner wall, and several through holes (14) arranged in an array are opened on the outer wall of each wave-damping plate (13).

3. The water spray device for a road inspection vehicle according to claim 1, characterized in that: The water storage cylinder (1) has a limiting ring (11) connected to its upper end on the inner wall of the inlet. The upper end of the limiting ring (11) is detachably connected to a filter screen (12) that works with it.

4. A water spray device for a road inspection vehicle according to claim 1, characterized in that: The end of the water inlet pipe (41) that extends into the water storage tank (1) is equipped with a filter (42) that is connected to it.

5. A water spray device for a road inspection vehicle according to claim 1, characterized in that: The mounting bracket (2) includes a mounting plate (21), multiple positioning rods (22) arranged in an array at the bottom of the mounting plate (21), a slide (23) slidably connected to the outer wall of the positioning rods (22), a threaded hole (24) that passes through the upper end of the outer wall of the mounting plate (21) and opens downward, and a threaded rod (25) that is threaded to the threaded hole (24) and whose lower end is rotatably connected to the upper end of the outer wall of the slide (23) and is used to control its up and down movement.

6. A water spraying device for a road inspection vehicle according to claim 5, characterized in that: The front end of the outer wall of the carriage (23) is provided with a wind deflector (26) that blocks the front of the water spray assembly (3).

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