Water washing test device and automobile test system

Abstract

The utility model relates to a water washing test device and an automobile test system. The water washing test device comprises a test box used for accommodating a test piece and forming a closed test space, and the test box is provided with a high-pressure water gun mounting port; the flushing assembly comprises a high-pressure water pump and a high-pressure water gun, the high-pressure water pump is connected with the high-pressure water gun through a pipeline, the high-pressure water gun comprises a gun handle and a gun head, the gun handle is fixedly connected with the gun head, the gun head extends into the test box through the high-pressure water gun mounting opening, and the gun head is rotatably connected with the high-pressure water gun mounting opening and is used for flushing the test piece; the controller is electrically connected with the flushing assembly and used for controlling working parameters of the flushing assembly. The water washing test device and the automobile test system provided by the utility model are convenient to operate, can improve the test efficiency, and can better meet the test requirements.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile part manufacturing technology, in particular to a water washing test device and automobile test system. BACKGROUND

[0002] Automobile is one of important traffic tools in human life, in order to guarantee that the material of automobile meets quality demand, needs carrying out different test according to material characteristics to ensure that it meets relevant standard, thereby guaranteeing the quality and reliability of automobile. In the process of washing, the surface coating of paint is impacted by high pressure water flow. In addition, when driving in heavy rain weather, rainwater also produces certain pressure impact with plastic piece paint coating. These water flows impact coating with certain temperature pressure, can produce damaging effect to the surface paint coating of automobile, can cause paint layer to fall off, influence vehicle quality and aesthetic property, and when impact is serious, can cause rust, influence the service life of automobile. The high pressure water washing test of automobile paint coating exterior trim piece is used to simulate the durability and corrosion resistance of vehicle in rainwater, car washing or water environment in actual use. This test usually carries out impact to the coating on the surface of exterior trim piece through high pressure water column, observes whether paint coating appears peeling, blistering, cracking or color change and other defects, thereby evaluating its durability and environmental influence resistance.

[0003] The high pressure washing machine is a commonly used test device for high pressure water washing test, generally includes host part and water spraying device, high pressure water is obtained from the host part and sent to the water spraying device, various types of impurities are cleaned, the high pressure washing machine cannot comprehensively simulate the relevant environment required for testing, and at present, in the field of high pressure water washing test of paint coating of automobile plastic piece, most test devices have problems such as high manufacturing cost, complex structure and inconvenient test operation. UTILITY MODEL CONTENTS

[0004] Therefore, it is necessary to provide a water washing test device and automobile test system which are convenient to operate and can better meet the test requirements.

[0005] In a first aspect, a water washing test device is provided, which comprises:

[0006] A test box is used to accommodate test pieces and form a closed test space, and a high pressure water gun mounting port is formed on the test box; and

[0007] A washing assembly comprises a high pressure water pump and a high pressure water gun, the high pressure water pump is connected with the high pressure water gun through a pipeline, the high pressure water gun comprises a gun handle and a gun head, the gun handle and the gun head are fixedly connected, the gun head extends into the interior of the test box through the high pressure water gun mounting port, and the gun head is rotatably connected with the high pressure water gun mounting port and used to wash the test pieces.

[0008] A controller, electrically connected with the flushing assembly, for controlling working parameters of the flushing assembly.

[0009] In one of the embodiments, the test box comprises a bottom plate, side plates and a top cover, the bottom plate and the side plates are fixedly connected, the top cover is detachably connected with the side plates, and a sealing element is arranged on the connecting surface of the top cover and the side plates.

[0010] In one of the embodiments, clamps for fixing the test piece are arranged on the bottom plate.

[0011] In one of the embodiments, observation windows are arranged on the top cover and at least two side plates of the test box.

[0012] In one of the embodiments, angle indicating marks are arranged on the observation windows.

[0013] In one of the embodiments, a power supply assembly is further included, the power supply assembly is electrically connected with the controller and the flushing assembly, and is used for supplying power to the test device.

[0014] In one of the embodiments, the high-pressure water pump is connected with a water storage tank through a pipeline, and the control assembly further comprises a flow sensor, the flow sensor is arranged on the pipeline between the high-pressure water pump and the water storage tank, and is used for detecting the water flow entering the high-pressure water pump.

[0015] In one of the embodiments, the device further comprises a pressure regulating valve electrically connected with the controller, a water inlet of the pressure regulating valve is connected with a water outlet of the high-pressure water pump, a water outlet of the pressure regulating valve is connected with a water return inlet of the water storage tank, and the pressure regulating valve is used for regulating the water outlet pressure of the high-pressure water pump.

[0016] In one of the embodiments, the device comprises a temperature sensor and a heating assembly, the heating assembly is arranged inside the water storage tank, and is used for heating water in the water storage tank, the temperature sensor is used for detecting the water temperature inside the water storage tank, and the temperature sensor and the heating assembly are electrically connected with the controller.

[0017] In the second aspect, an automobile test system is provided, and the system comprises the water flushing test device as described in the first aspect or any one of the embodiments of the first aspect, and the test device is used for flushing the coating exterior part of the automobile in the high-pressure water flushing test.

[0018] The test box can be used to accommodate test pieces and form a closed test space, which helps to avoid high-pressure water flow splashing to the external area, thereby improving the safety of test operation, preventing water stains from spreading, and protecting the operating personnel and the surrounding environment of the equipment; the high-pressure water pump provides stable high-pressure water flow for the high-pressure water gun, thereby ensuring that the water gun can efficiently wash the coating surface of the test piece to simulate the water pressure impact conditions in actual use; the gun head is inserted into the test box through the high-pressure water gun mounting port and is rotatably connected with the mounting port, which enables the gun head to flexibly adjust the direction, thereby being able to wash each angle and part of the test piece, and improving the coverage and comprehensiveness of the test. The water washing test device and the automobile test system can adapt to test pieces of different sizes and shapes, and different types of paint coating exterior parts can be washed in the test box, so that the device has strong universality and is suitable for testing of various products. The water washing test device and the automobile test system have high flexibility, convenient operation, can improve the test efficiency, ensure the accuracy and consistency of the test results, and better meet the test requirements. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Fig. 1 The structure schematic diagram of the water washing test device provided by an embodiment of the present application is shown in the figure.

[0021] Fig. 2 The structure schematic diagram of the test box of the water washing test device provided by an embodiment of the present application is shown in the figure.

[0022] Fig. 3 The structure schematic diagram of the high-pressure water gun of the water washing test device provided by an embodiment of the present application is shown in the figure.

[0023] In order to make the above and other purposes, features, advantages and embodiments of the present application more obvious and easy to understand, the following is the description of the symbols:

[0024] 10. High pressure water gun; 11. Gun handle; 12. Gun rod; 13. Gun head; 14. Special high pressure hose; 20. High pressure water pump; 20. Test box; 21. Bottom plate; 22. Side plate; 23. Top cover; 24. Observation window; 25. Universal wheel; 26. Test box water outlet; 27. Handle; 28. Buckle; 29. High pressure water gun mounting port; 31. Pressure gauge; 32. Pressure regulating valve; 33. Flow meter; 40. Water storage tank; 41. Water storage tank water inlet; 42. Water storage tank external overflow water outlet; 43. Water storage tank external drain; 44. Water storage tank backwater outlet; 45. Temperature sensor; 50. Power supply box; 60. Fixture fixing plate; 61. Fixing hole; 70. Heating assembly; 80. Angle indicating mark. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings. In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0026] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0027] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can indirectly connect through the intermediate medium, can be the communication of two elements or the interaction relationship of two elements, unless another definite limitation.For the ordinary skilled person in the art, the above terms can be understood according to the specific meaning of the utility model.

[0029] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium.Moreover, the first feature "over", "above" and "on" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature.The first feature "under", "below" and "on" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0030] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can be a middle element.When an element is referred to as "connected to" another element, it can be directly connected to the other element or there can be a middle element.The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0031] Fig. 1 The structural schematic diagram of the water flushing test device provided by an embodiment of the application is shown in the figure; Fig. 2 The structural schematic diagram of the test box of the water flushing test device provided by an embodiment of the application is shown in the figure; Fig. 3 The structural schematic diagram of the high-pressure water gun of the water flushing test device provided by an embodiment of the application is shown in the figure. Figs. 1 to 3 As shown in the figure, the utility model provides a kind of water flushing test device, and the water flushing test device includes:

[0032] Test box 20 is used to accommodate test piece and form closed test space, and high-pressure water gun installation port 29 is opened on test box 20;And,

[0033] The flushing assembly comprises a high-pressure water pump 20 and a high-pressure water gun 10, the high-pressure water pump 20 is connected with the high-pressure water gun 10 through a pipeline, the high-pressure water gun 10 comprises a handle and a gun head 13, the handle and the gun head 13 are fixedly connected, the gun head 13 extends into the test box 20 through a high-pressure water gun mounting port 29, and the gun head 13 is rotatably connected with the high-pressure water gun mounting port 29 and is used for flushing the test piece;

[0034] The controller is electrically connected with the flushing assembly and is used for controlling working parameters of the flushing assembly.

[0035] As shown in the figure, the test box 20 is used for accommodating the test piece and forming a closed test space, and other components of the test device can also be accommodated in the test box 20, the high-pressure water gun 10 comprises a handle 11, a gun barrel 12 and a gun head 13 which are connected in sequence, wherein the handle 11 is used for controlling the ejection of the water column, the gun barrel 12 and the gun head 13 are used for forming the water column, the handle 11 is connected with the high-pressure water pump 20 through a high-pressure hose, the gun head 13 extends into the test box 20 through the high-pressure water gun mounting port 29 and is used for ejecting the water column to the test piece in the test box 20, the gun head 13 can be rotatably connected with the high-pressure water gun mounting port 29 through a universal joint, a rotary joint or a sealed bearing and the like, so that the gun head 13 can be rotated to adjust the flushing angle, and a sealing element can be arranged at the connection position of the high-pressure water gun mounting port 29 and the gun head 13 to prevent water leakage.

[0036] In the above water flushing test device and automobile test system, the test box 20 can be used for accommodating the test piece and forming a closed test space, which helps to avoid high-pressure water flow from splashing to the external area, thereby improving the safety of the test operation, preventing water stains from spreading and protecting the operating personnel and the surrounding environment of the equipment; the high-pressure water pump 20 provides stable high-pressure water flow for the high-pressure water gun 10, thereby ensuring that the water gun can efficiently flush the coating surface of the test piece and simulate the water pressure impact condition in actual use; the gun head 13 extends into the test box 20 through the high-pressure water gun mounting port 29 and is rotatably connected with the mounting port, and this design enables the gun head 13 to flexibly adjust the direction, thereby being able to flush each angle and part of the test piece, improving the coverage and comprehensiveness of the test; different sizes and shapes of test pieces can be adapted, and different types of paint coating exterior parts can be subjected to the flushing test in the test box 20, and the device has strong universality and is suitable for testing various products. The above water flushing test device and automobile test system have high flexibility, are convenient to operate, can improve the test efficiency, ensure the accuracy and consistency of the test results and can better meet the test requirements.

[0037] In an exemplary embodiment, the test box 20 comprises a bottom plate 21, side plates 22 and a top cover 23, the bottom plate 21 and the side plates 22 are fixedly connected, the top cover 23 is detachably connected with the side plates 22, and a sealing element is arranged on the connecting surface of the top cover 23 and the side plates 22. The bottom plate 21, the side plates 22 and the top cover 23 can be steel structures to ensure the structural strength, the top cover 23 can be detachably connected with the side plates 22 through buckles 28 or the like, and the sealing element can be a sealing strip made of rubber, silicone or polyurethane.

[0038] In an exemplary embodiment, the bottom plate 21 is provided with a clamp for fixing the test piece. The clamp can be fixedly connected with the bottom plate 21 to facilitate the positioning of the test piece and prevent it from moving after being impacted by the water flow.

[0039] In an exemplary embodiment, the top cover 23 and at least two side plates 22 of the test box 20 are provided with observation windows 24. The observation windows 24 can facilitate the observation and adjustment of the water outlet angle of the high-pressure water gun 10, and also can observe the appearance change of the test piece during the test. The observation windows 24 can be arranged on adjacent two side plates 22 to facilitate the observation and adjustment of the water outlet angle from different angles. The observation windows 24 can also be arranged on all side plates 22. The observation windows 24 can be high-pressure glass and are connected with the test box 20 by welding.

[0040] In an exemplary embodiment, the observation windows 24 are provided with angle indicating marks 80. The angle indicating marks 80 can facilitate the adjustment of the water outlet angle of the high-pressure water gun 10.

[0041] In an exemplary embodiment, a power supply assembly is further included, which is electrically connected with the controller and the flushing assembly and is used for supplying power to the test device.

[0042] In an exemplary embodiment, the high-pressure water pump 20 is connected with the water storage tank 40 through a pipeline, and the control assembly further comprises a flow sensor, which is arranged on the pipeline between the high-pressure water pump 20 and the water storage tank 40 and is used for detecting the water flow entering the high-pressure water pump 20.

[0043] In an exemplary embodiment, the device further comprises a pressure regulating valve 32 electrically connected with the controller, the water inlet of the pressure regulating valve 32 is connected with the water outlet of the high-pressure water pump 20, the water outlet of the pressure regulating valve 32 is connected with the water return port 44 of the water storage tank, and the pressure regulating valve 32 is used for regulating the water outlet pressure of the high-pressure water pump 20. The pressure regulating valve 32 can realize the accurate regulation and control of the water outlet pressure of the high-pressure water pump 20, so as to realize the test under various water pressure conditions and simulate various impact strengths in actual working conditions.

[0044] In an exemplary embodiment, the device comprises a temperature sensor 45 and a heating assembly 70, the heating assembly 70 is arranged inside the water storage tank 40 for heating the water in the water storage tank 40, the temperature sensor 45 is used to detect the water temperature inside the water storage tank 40, and the temperature sensor 45 and the heating assembly 70 are electrically connected with the controller. The device can also include a temperature adjustment module, which detects the water temperature in the water storage tank 40 in real time through the temperature sensor 45, and transmits the temperature data to the controller, and the controller can automatically adjust the power of the heating assembly 70 according to the set target water temperature, to ensure that the water temperature is maintained within the test requirement range.

[0045] In an exemplary embodiment, a vehicle test system is also provided, which comprises a water washing test device as in the above embodiments, which is used to wash the coating exterior trim of the vehicle during the high-pressure water washing test.

[0046] The automobile paint coating exterior trim high-pressure water washing test device provided by the utility model is suitable for the technical conditions required in the related standards of the automobile industry paint performance high-pressure water washing, and solves the problems of high manufacturing cost, complex structure, inconvenient test operation and the like of the device used for the existing automobile plastic part paint coating high-pressure washing test. The test device can simulate the conditions such as the washing pressure of high-pressure water, the distance between the spray gun and the test plate surface, the spray angle direction, the test water temperature and the spray time required in the related standards, the coating is impacted by using high-pressure water flow, the change of the surface adhesion of the coating is observed, the sample part high-pressure water washing performance is evaluated, and therefore the automobile plastic part paint coating high-pressure water washing performance test efficiency is improved.

[0047] In an exemplary embodiment, the assembly of the test device comprises the following steps:

[0048] Assemble the high-pressure water gun 10:

[0049] Step 101: Install the gun barrel 12 on the gun handle 11;

[0050] Step 102: Install the gun head 13 on the gun barrel 12;

[0051] Step 103: Install the high-pressure special hose 14 on the gun handle 11.

[0052] Assemble the electric heating high-pressure water cleaning structure:

[0053] Step 201: Build a four-sides hollowed flat plate support with a handle 27, and design the bottom plate 21 as a flat plate with four universal wheels 25, so that the flat plate support can be moved by pushing the handle 27;

[0054] Step 202: Fix the high-pressure water pump 20 on the bottom plate of the flat plate support;

[0055] Step 203: Connect pressure gauge 31 to interface 1 of high pressure pump through high pressure pipe;

[0056] Step 204: Fix water storage tank 40 on the bottom plate of the flat plate support;

[0057] Step 205: Connect pressure regulating valve 32 interface 1 to interface 2 of high pressure pump through high pressure pipe, and connect pressure regulating valve 32 interface 2 to water outlet of water storage tank 40 through high pressure pipe;

[0058] Step 206: Connect water outlet of flow meter 33 to water inlet of high pressure pump 20 through high pressure pipe, and connect water inlet of flow meter 33 to water outlet of water storage tank 40 through high pressure pipe;

[0059] Step 207: Install electric heating system inside water storage tank 40;

[0060] Step 208: Install temperature gauge outside water storage tank 40;

[0061] Step 209: Connect water inlet of water storage tank 40 to water outlet of tap through water inlet pipe, and supply water from water storage tank 40 to high pressure pump 20;

[0062] Step 210: Connect water outlet 43 outside water storage tank to floor drain through water outlet faucet on test tank water outlet 26 through hose;

[0063] Step 211: Connect overflow water outlet 42 outside water storage tank to floor drain through hose;

[0064] Step 212: Install three-phase power supply box 50 on the cuboid support, and power supply box 50 provides power supply for heating system and high pressure pump 20, which needs to be connected to socket with reliable ground wire. Power supply box 50 is connected to heating system through power supply line, and power supply box 50 is connected to high pressure pump 20 through power supply line;

[0065] Step 213: Connect high pressure water gun 10 to interface 3 of pressure regulating valve 32 through high pressure hose.

[0066] Assemble waterproof tank structure:

[0067] Step 301: The main body of the waterproof tank is a rectangular box with a handle made of stainless steel plate;

[0068] Step 302: Connect four universal wheels 25 to the outside of the bottom plate 21 of the waterproof tank, which is convenient for moving position;

[0069] Step 303: The waterproof box is not provided with a top plate, the top is opened for placing a sample, the periphery is connected with a sealing rubber strip to prevent water overflow, a box cover is designed, high-pressure resistant glass is welded in the middle, 16 buckles 28 clamps are designed in the periphery to prevent the box cover from being broken due to the impact of high-pressure water flow;

[0070] Step 304: Three pieces of high-pressure resistant glass are welded in the middle of the left, right and front stainless steel plates of the waterproof box for observing the state of the sample;

[0071] Step 305: Angle indication lines are engraved in the left and right stainless steel plates of the waterproof box for determining the water inlet angle of the high-pressure water gun 10;

[0072] Step 306: An interface is left at the bottom position of the rear stainless steel plate of the waterproof box for connecting a water outlet faucet, the water outlet faucet is connected with a water pipe and is discharged into a floor drain;

[0073] Step 307: A high-pressure water gun mounting port 29 is arranged at the center position of the rear stainless steel plate of the waterproof box;

[0074] Step 308: A stainless steel plate is welded above the inner bottom plate 21 of the waterproof box as a clamp fixing plate 60, a plurality of fixing holes 61 are formed in the steel plate for fixing the clamp;

[0075] Step 309: When in use, the high-pressure water gun 10 gun head 13 is connected to the high-pressure water gun mounting port 29;

[0076] During the connection process of the test device, when the high-pressure pipe is connected, the internal thread port and the equipment water inlet port thread need to be aligned and engaged and then rotated and tightened, and the reverse rotation can disassemble; when the high-pressure water gun 10 is connected, the high-pressure pipe internal thread port is aligned with the high-pressure water gun 10 thread, the thread is aligned and engaged, and then rotated and tightened, and the reverse rotation can disassemble; when the water inlet 41 of the water storage tank is connected, the tap water pipe is inserted tightly into the water inlet, and the metal clamp is tightened.

[0077] During the operation of the device, attention should be paid to the pressure gauge 31 data, and the working pressure is adjusted by rotating the pressure regulating valve 32; the pressure is increased by rotating the pressure regulating valve 32 handle 27 area in the clockwise direction, and the pressure is reduced by rotating the pressure regulating valve 32 handle 27 area in the counterclockwise direction.

[0078] During the operation of the device, attention should be paid to the temperature table data, and the working temperature is adjusted by controlling the electric heating system digital; the heating temperature is adjusted by selecting the temperature in the electric heating system digital display screen, and the heating temperature is adjusted by touching the up button in the middle of the panel and the heating temperature is adjusted by touching the down button.

[0079] The cleaning device test process includes the following steps:

[0080] Step 401: Use a knife to engrave two intersecting lines with a certain angle on the coating of the sample to be tested, which damage to the bottom material;

[0081] Step 402: the sample to be tested is fixed on the stainless steel plate at the bottom of the waterproof box by the clamp, and the top plate of the waterproof box is closed tightly;

[0082] Step 403: open the water pipe to supply water to the water storage tank 40;

[0083] Step 404: turn on the power supply box 50 for power supply;

[0084] Step 405: adjust the temperature of the high-pressure water flow to the standard required working temperature;

[0085] Step 406: adjust the pressure of the high-pressure water flow to the standard required working pressure;

[0086] Step 407: insert the gun head 13 of the high-pressure water gun 10 into the high-pressure water gun mounting port 29 of the waterproof box;

[0087] Step 408: adjust the water inlet angle of the high-pressure water gun 10 and the sample to be tested to the standard required angle according to the two side angle lines;

[0088] Step 409: adjust the distance between the high-pressure water gun 10 and the sample to be tested to the standard required distance;

[0089] Step 410: the operator tightly holds the gun handle and presses the trigger to start spraying the high-pressure water flow;

[0090] Step 411: observe the state of the sample to be tested at all times, and stop operation after the standard required high-pressure water flow spraying time is reached;

[0091] Step 412: open the top plate of the waterproof box, take out the sample, observe the damage state at the scale line, and measure the single-sided crack width.

[0092] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not contradict, they should be considered as within the scope of the present disclosure.

[0093] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, some modifications and improvements can be made, which are within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A water flush test device characterized by, The water flushing test device comprises: a test box for accommodating a test piece and forming a closed test space, the test box being provided with a high-pressure water gun mounting opening; and a flushing assembly comprising a high-pressure water pump and a high-pressure water gun, the high-pressure water pump being connected to the high-pressure water gun through a pipeline, the high-pressure water gun comprising a gun handle and a gun head, the gun handle and the gun head being fixedly connected, the gun head extending into the test box through the high-pressure water gun mounting opening, the gun head being rotatably connected to the high-pressure water gun mounting opening for flushing the test piece; a controller electrically connected to the flushing assembly for controlling the working parameters of the flushing assembly.

2. The water flush test device of claim 1, wherein, The test box comprises a bottom plate, side plates and a top cover, the bottom plate and the side plates being fixedly connected, the top cover being detachably connected to the side plates, and a sealing member being arranged on the connecting surface of the top cover and the side plates.

3. The water flush test device of claim 2, wherein, The bottom plate is provided with a clamp for fixing the test piece.

4. The water flush test device of claim 3, wherein, The top cover and at least two side plates of the test box are provided with observation windows.

5. The water flush test device of claim 4, wherein, The observation windows are provided with angle indication marks.

6. The water flush test device of claim 1, wherein, The device further comprises a power supply assembly electrically connected to the controller and the flushing assembly for supplying power to the test device.

7. The water flush test device of claim 1, wherein, The high-pressure water pump is connected to a water storage tank through a pipeline, the controller further comprises a flow sensor arranged on the pipeline between the high-pressure water pump and the water storage tank for detecting the water flow entering the high-pressure water pump.

8. The water flush test device of claim 7, wherein, The device further comprises a pressure regulating valve electrically connected to the controller, the water inlet of the pressure regulating valve being connected to the water outlet of the high-pressure water pump, and the water outlet of the pressure regulating valve being connected to the water return inlet of the water storage tank for regulating the water outlet pressure of the high-pressure water pump.

9. The water flush test device of claim 7, wherein, The device comprises a temperature sensor and a heating assembly, the heating assembly being arranged inside the water storage tank for heating the water in the water storage tank, the temperature sensor being used for detecting the water temperature inside the water storage tank, and the temperature sensor and the heating assembly being electrically connected to the controller.

10. An automotive testing system, characterized by, The system comprises the water flushing test device according to any one of claims 1-9, the test device being used for flushing the coating exterior part of a vehicle during a high-pressure water flushing test.

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