A rain test device for rail transit vehicles

Abstract

The utility model relates to vehicle rain test device technical field, concretely relates to a track traffic vehicle rain test device, including setting up at the rain position of test car body and spraying pipe, install a plurality of spray heads on spraying pipe, still include: circulating water storage part, including the water storage tank that has installed filter screen inside, and the backflow diversion hopper that installs in the water storage tank is conducted through, the water storage tank bottom is conducted through the installation of guide valve pipe, adsorption filter box, guide valve pipe and water pump in proper order through drain pipe, and the water pump outlet is conducted through the outlet valve pipe and spraying pipe connection, and the circulating water storage part that is equipped can provide the water for rain test, can realize multistage filtration through filter screen and detachable installation adsorption filter box to circulating backflow water body, can reduce the impurity content in water body, reduces or avoids the problem that circulating water body blocks spraying pipe and spray head, reduces the failure rate, is favorable to guarantee that spraying pipeline obtains pressure stability, and spraying intensity and flow even spraying effect.

Description

Technical Field

[0001] This utility model relates to the technical field of vehicle rain testing devices, specifically to a rain testing device for rail transit vehicles. Background Technology

[0002] During the manufacturing and overhaul of rail transit vehicles, rain tests are required to check the water tightness of the car body and components. The rain test device is a core piece of equipment, and its performance directly affects the accuracy of the test. The water circulation system of the existing rain test device has obvious defects. The return water tank of some single-vehicle rain test devices can only collect the return water in a simple way and does not have an effective filtration device. As a result, when spraying, dust, welding slag, metal debris and other impurities on the car body surface enter the circulation system with the return water and are directly mixed into the clean water pool or water tank.

[0003] Currently, most spray nozzles have a diameter of 1.0-2.0 mm, which makes them prone to clogging by impurities in the circulating water. This can lead to sudden drops in local spray pressure and insufficient flow, resulting in uneven spray intensity in the test area and affecting the accuracy of the test. It also requires frequent shutdowns for cleaning or replacement of the nozzles, increasing costs and reducing efficiency. Therefore, developing a water circulation structure with effective impurity filtration function to solve the problem of impurities clogging the spray nozzles is of great significance for ensuring the accuracy of rain tests. In view of this, we propose a rain test device for rail transit vehicles. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings mentioned in the background art and provide a rain test device for rail transit vehicles.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A rain test device for rail transit vehicles includes a spray pipe installed at the rain-exposed portion of the test vehicle body, wherein multiple nozzles are mounted on the spray pipe, and further includes: A circulating water storage unit is used to provide water for rain test, including a water storage tank with a filter screen installed inside. A return flow guide hopper for collecting the return water from the rain test is installed on the water storage tank. The filter screen is located below the outlet of the return flow guide hopper. The bottom of the water storage tank is connected to a flow guide valve pipe, an adsorption filter box, a flow guide valve pipe and a water pump in sequence through a drain pipe. The water outlet of the water pump is connected to the spray pipe through an outlet valve pipe.

[0006] Preferably, the water storage tank is equipped with a support block for supporting the filter screen; The filter screen has a semi-circular structure with an opening facing upwards and a downward indentation.

[0007] Preferably, a stirring shaft wheel is installed inside the water storage tank and located at the center of the filter screen, and a drive motor coaxially connected to the stirring shaft wheel is fixedly installed outside the water storage tank; The stirring wheel is used to agitate the water to prevent impurities from settling and affecting filtration efficiency.

[0008] Preferably, the two flow guide valves are provided with connecting branch pipes, and the adsorption filter box is provided with two connection ports for detachably connecting the connecting branch pipes via conduits.

[0009] Preferably, the adsorption filter chamber is formed by filling it with activated carbon adsorption particles.

[0010] Preferably, the water storage tank is equipped with a level gauge and a water supply pipe for replenishing water.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This rail transit vehicle rain test device provides rain test water through a circulating water storage section. The circulating water is filtered through a filter screen and a detachable adsorption filter box to achieve multi-stage filtration, which reduces the impurity content in the water and reduces or avoids the problem of circulating water clogging the spray pipes and nozzles, thus lowering the failure rate. It also helps to ensure that the spray pipeline obtains a stable spray effect with uniform spray intensity and flow, thus ensuring the accuracy of the rain test. Attached Figure Description

[0012] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings: Figure 1 This is a schematic diagram of an embodiment of the overall device of this utility model; Figure 2 This is one of the schematic diagrams of the circulating water storage unit of this utility model; Figure 3 This is the second schematic diagram of the circulating water storage section of this utility model; Figure 4 This is a cross-sectional view of the circulating water storage section of this utility model.

[0013] The meanings of the labels in the diagram are as follows: 1. Water storage tank; 101. Water supply pipe; 102. Drainage pipe; 103. Support block; 2. Return flow guide hopper; 3. Liquid level gauge; 4. Drive motor; 5. Stirring shaft wheel; 6. Flow guide valve pipe; 61. Connecting branch pipe; 7. Water pump; 8. Water outlet valve pipe; 9. Adsorption filter box; 10. Filter screen; 11. Spray pipe; 12. Spray head; 13. Test vehicle body. Detailed Implementation

[0014] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0015] Please see Figures 1-4 The present invention will describe the above technical solution in detail through the following embodiments: This embodiment of the rail transit vehicle rain test device includes, as follows: Figure 1 The spray pipe 11 shown is located at the rain-affected area of ​​the test vehicle body 13. Multiple evenly distributed nozzles 12 are mounted on the spray pipe 11. In other embodiments, the spray pipe 11 can also be configured as an inverted U-shaped structure surrounding the test vehicle body 13. This part belongs to the prior art. It also includes: The circulating water storage unit is used to provide water for rain testing, such as... Figures 2-4 The structure shown includes a water tank 1 with a filter screen 10 installed inside. The water tank 1 is connected to a return flow guide hopper 2 for collecting the water returning from the rain test at the ground near the test vehicle body 13. The water can flow back and be collected into the water tank 1. In order to avoid clogging by large impurities, filtration is required. Therefore, in this embodiment, a support block 103 for supporting the filter screen 10 is installed in the water tank 1. In order to filter all the returning water, the filter screen 10 is located below the outlet of the return flow guide hopper 2. In this embodiment, the filter screen 10 has a semi-circular structure with the opening facing upward and the depression facing downward. Impurities will accumulate downward and in the center under the action of water and gravity, and will not be blocked.

[0016] This embodiment takes into account the need to avoid large impurities, such as film, leaves, and other flaky impurities, from clogging the filter pores. Therefore, within the water storage tank 1... Figure 2 and Figure 3 As shown, an agitator wheel 5 is installed at the center of the filter screen 10. A drive motor 4, coaxially connected to the agitator wheel 5, is fixedly installed on the outside of the water tank 1. The agitator wheel 5 stirs the water, reducing the problem of flaky impurities such as film and leaves moving downwards and clogging the filter holes. The upward-opening filter screen 10 is easy to clean.

[0017] However, it should be noted that while the filter screen 10 ensures filtration effect and water flow, it cannot completely filter small impurities. The filtration effect of small particles such as dust and gravel is poor, and most of them will pass through the filter screen and settle at the bottom of the water tank 1, and may be discharged with the water flow and block the nozzle 12. Therefore, in this embodiment, a flow guide valve pipe 6, an adsorption filter box 9, a flow guide valve pipe 6 and a water pump 7 are sequentially installed at the bottom of the water tank 1 through a drain pipe 102. The water outlet of the water pump 7 is connected to the spray pipe 11 through an outlet valve pipe 8. There are connecting branch pipes 61 on the two flow guide valve pipes 6. The two connecting ports on the adsorption filter box 9 are connected to the connecting branch pipes 61 and can be detachably installed with conduits, which facilitates the disassembly and replacement of the adsorption filter box 9. In this embodiment, the inner cavity of the adsorption filter box 9 is filled with activated carbon adsorption particles, which can adsorb and filter small impurities and reduce the probability of clogging the nozzle 12. In order to ensure sufficient water flow, a level gauge 3 is installed on the water tank 1 and a water replenishment pipe 101 is provided to replenish the water flow in a timely manner.

[0018] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0019] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A rain test device for rail transit vehicles, comprising a spray pipe (11) installed at the rain-tested part of the test vehicle body (13), wherein a plurality of nozzles (12) are installed on the spray pipe (11), characterized in that: Also includes: The circulating water storage unit is used to provide water for rain test, including a water storage tank (1) with a filter screen (10) installed inside. A return flow guide bucket (2) for collecting the return water of the rain test is installed on the water storage tank (1). The filter screen (10) is located below the outlet of the return flow guide bucket (2). The bottom of the water storage tank (1) is connected to the flow guide valve pipe (6), the adsorption filter box (9), the flow guide valve pipe (6) and the water pump (7) in sequence through the drain pipe (102). The water outlet of the water pump (7) is connected to the spray pipe (11) through the water outlet valve pipe (8).

2. The rain test device for rail transit vehicles as described in claim 1, characterized in that: The water storage tank (1) is equipped with a support block (103) for supporting the filter screen (10). The filter screen (10) has a semi-circular structure with an opening facing upwards and a downward indentation.

3. The rain test device for rail transit vehicles according to claim 2, characterized in that: A stirring wheel (5) is installed inside the water tank (1) and at the center of the filter screen (10). A drive motor (4) is fixedly installed outside the water tank (1) and is coaxially connected to the stirring wheel (5). The stirring wheel (5) is used to agitate the water to prevent impurities from settling and affecting the filtration efficiency.

4. The rain test device for rail transit vehicles according to claim 1, characterized in that: The two flow guide valves (6) are provided with connecting branch pipes (61), and the adsorption filter box (9) is provided with two connection ports for detachably connecting the connecting branch pipes (61) through conduits.

5. The rain test device for rail transit vehicles as claimed in claim 4, characterized in that: The inner cavity of the adsorption filter box (9) is formed by filling it with activated carbon adsorption particles.

6. The rain test device for rail transit vehicles as described in claim 1, characterized in that: The water storage tank (1) is equipped with a level gauge (3) and a water supply pipe (101) for replenishing water.

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