Rainproof performance detection device, detection system and control method thereof

Abstract

The invention discloses a rainproof performance detection device, a detection system and a control method thereof, and relates to the technical field of automobile performance testing, the rainproof performance detection device is arranged at at least one end of a rain line body, and the rainproof performance detection device comprises two spraying door frames which are the same in structure and are symmetrically arranged; a plurality of nozzles are arranged on one side, facing the rain line body, of the rain line body; the two spraying door frames are rotationally arranged on the two sides of the raining line body correspondingly so as to be perpendicular to or parallel to the running direction of the vehicle. The two spraying door frames are rotationally arranged on the two sides of the raining line body to form an opening and closing type raining test device, and when the spraying door frames are parallel to the vehicle driving direction, a vehicle is allowed to pass through; when the vehicle is perpendicular to the driving direction of the vehicle, rainproof sealing performance detection is carried out on the end portion of the vehicle, each spraying door frame is communicated with a line body pipeline of the raining line body, enough water pressure and water supply are ensured, and the problem that operation is tedious due to the fact that a movable raining device is manually carried and an independent water supply pipe needs to be connected is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile performance testing, and in particular to a rainproof performance detection device, a detection system and a control method thereof. Background Art

[0002] In the modern automobile manufacturing industry, the rainproof sealing performance of vehicles is one of the important indicators to measure the quality of automobiles. In order to ensure that the vehicle can maintain good sealing under adverse weather conditions (such as rainy days) and prevent rain from seeping into the vehicle and causing damage to the vehicle's electrical system, interior and passengers, the rain test is an indispensable link to detect whether the sealing performance of the vehicle meets the standard requirements. The end of the vehicle, especially the front of the vehicle, is the key area for the whole vehicle rain test. Due to its location on the windward side and its complex structure, it is easy to leak rain. Therefore, it is very necessary to conduct standardized rain testing on the end area of ​​the vehicle to ensure the quality and performance of the vehicle.

[0003] At present, the traditional rain test device needs to be manually moved and connected to an independent water supply pipe. The operation is cumbersome, time-consuming and labor-intensive, and there is a problem of blind spot detection. At the same time, the traditional automated rain line does not have a front rain shower for the vehicle body, and there is no independent spray surface on the front of the vehicle. For the rainproof sealing test of trucks, there is a lack of a device that can quickly spray the front of the vehicle. Summary of the invention

[0004] The purpose of the present invention is to provide a rainproof performance detection device, a detection system and a control method. By rotating two spray door frames, the spray door frames are made perpendicular or parallel to the driving direction of the vehicle, thereby solving the technical problem of cumbersome manual operation of traditional rain test devices when testing the end of a car.

[0005] The present invention provides the following scheme:

[0006] In a first aspect, the present invention describes a rainproof performance detection device, which is arranged at at least one end of a rain shower line body, and comprises: two shower door frames of the same structure and symmetrically arranged;

[0007] The spray door frame is connected to the line pipe of the shower line, and a plurality of nozzles are arranged on one side of the spray door frame facing the shower line;

[0008] The two spray door frames are rotatably arranged on both sides of the shower line body, so that the spray door frames are perpendicular or parallel to the driving direction of the vehicle.

[0009] Preferably, the spray door frame includes a main pipeline and a plurality of branch pipelines;

[0010] The two main pipes are vertically and rotatably arranged on both sides of the shower line body, and the main pipes are respectively connected with the line body pipe and the branch pipe;

[0011] A plurality of branch pipes are vertically and spaced apart connected to the main pipe, and a plurality of nozzles are evenly arranged on one side of the branch pipe facing the shower line body;

[0012] The spray door frame rotates along its own axial direction through the main pipeline, so that the branch pipeline is vertical or parallel to the driving direction of the vehicle.

[0013] Preferably, the spray door frame further includes a supporting frame; the supporting frame is supported on the branch pipe.

[0014] Preferably, the spray door frame is axially rotated around the main pipeline by a telescopic cylinder;

[0015] The first end of the telescopic cylinder is fixedly connected to the supporting frame, and the second end is rotatably connected to the shower line.

[0016] Preferably, the first end of the telescopic cylinder is fixedly connected to the support frame through a first connecting frame, and the second end is rotatably connected to the shower line through a second connecting frame;

[0017] The first connecting frame includes a first connecting rod and a second connecting rod, the first end of the first connecting rod and the first end of the second connecting rod are connected to form an L shape, the second end of the first connecting rod is fixed to the supporting frame, and the second end of the second connecting rod is connected to the first end of the telescopic cylinder;

[0018] The second connecting frame includes a third connecting rod and a fourth connecting rod, the first end of the third connecting rod and the first end of the fourth connecting rod are connected in an L shape, the second end of the third connecting rod is fixed to the shower line body, and the second end of the telescopic cylinder is rotatably connected to the second end of the fourth connecting rod.

[0019] Preferably, it also includes a base;

[0020] The base is fixed on the ground, and the lower end of the main pipeline is rotatably connected to the upper end of the base.

[0021] Preferably, the upper end of the main pipeline is connected to the line pipeline through a rotating flange, and rotates around its own axis through the rotating flange.

[0022] Preferably, the rotating flange is hollow and connected between the line pipe and the main pipe;

[0023] The first end of the rotating flange is rotatably connected to the line pipe, and the second end is fixedly connected to the upper end of the main pipe.

[0024] In a second aspect, the present invention describes a rainproof performance detection system, comprising:

[0025] The rain line body;

[0026] The rainproof performance detection device is arranged at at least one end of the rain shower line, and the spray door frame rotates around the axial direction of the main pipe so that the branch pipe is parallel or perpendicular to the driving direction of the vehicle;

[0027] A photoelectric switch sensor is arranged at a preset stop position of the vehicle and is used to monitor whether the vehicle has reached the preset stop position;

[0028] A control device, wherein the control device is electrically connected to the photoelectric switch sensor, the telescopic cylinder and the switch of the shower line body, respectively, and is used to control the extension of the telescopic cylinder after the photoelectric switch sensor monitors that the vehicle has reached a preset stop position, control the switch of the shower line body to be turned on or off, and control the contraction of the telescopic cylinder after the spray test is completed.

[0029] In a third aspect, the present invention describes a control method for a rainproof performance detection system, comprising the following steps:

[0030] S1, the photoelectric sensor monitors whether the vehicle reaches the preset stop position; if so, transmits a signal to the control device;

[0031] S2, the control device controls the extension of the telescopic cylinder according to the signal, drives the spray door frame to rotate 90° around the main pipeline axis, so that the branch pipeline is perpendicular to the driving direction of the vehicle;

[0032] S3, the control device controls the switch of the shower line to turn on to perform a spray test; after the test is completed, the control device controls the switch of the shower line to turn off to stop spraying;

[0033] S4. After stopping the spraying, the control device controls the telescopic cylinder to contract, and drives the spray door frame to rotate 90° in the opposite direction around the axis of the main pipeline, so that the branch pipeline is parallel to the driving direction of the vehicle.

[0034] Compared with the prior art, the present invention has the following advantages:

[0035] 1. The rainproof performance detection device provided by the present invention is rotatably arranged on both sides of the rain shower line body through two spray door frames to form an open and close rain shower test device. This design allows the spray door frame to switch between perpendicular to the vehicle's driving direction and parallel to the vehicle's driving direction. When parallel to the vehicle's driving direction, the vehicle is allowed to pass; when perpendicular to the vehicle's driving direction, the rainproof sealing performance of the vehicle end is tested. Each spray door frame is connected to the line body pipeline of the rain shower line body to ensure sufficient water pressure and water supply. The problem of cumbersome manual operation caused by manual handling of the movable rain shower device and the need to connect an independent water supply pipe is avoided.

[0036] 2. The rainproof performance detection system provided by the present invention realizes automatic monitoring of the vehicle reaching the preset stop position and automatic control of the spray test through the coordinated use of the photoelectric switch sensor and the control device, thereby reducing manual operations and improving the efficiency and accuracy of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0038] Figure 1 It is a structural schematic diagram of the rainproof performance detection device according to an embodiment of the present invention;

[0039] Figure 2 for Figure 1 A magnified view of the structure of part A;

[0040] Figure 3 A planar connection diagram of the rainproof performance detection system according to an embodiment of the present invention;

[0041] Figure 4 It is a structural schematic diagram of the rainproof performance detection system according to an embodiment of the present invention;

[0042] Figure 5 This is a working demonstration diagram of the rainproof performance detection system according to an embodiment of the present invention;

[0043] Among them: 1-rain line; 11-line pipe;

[0044] 2-spray door frame; 21-nozzle; 22-main pipe; 23-branch pipe; 24-support frame; 25-base;

[0045] 3- telescopic cylinder; 31- first connecting frame; 311- first connecting rod; 312- second connecting rod; 32- second connecting frame; 321- third connecting rod; 322- fourth connecting rod;

[0046] 4- Rotating flange;

[0047] 5- Control device;

[0048] 6-Air compressor. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solutions and advantages of this application clearer, this application will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0050] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two.

[0051] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0052] It should be understood that although the terms first, second, third, etc. may be used to describe in the embodiments of the present application, these descriptions should not be limited to these terms. These terms are only used to distinguish the descriptions. For example, without departing from the scope of the embodiments of the present application, the first may also be referred to as the second, and similarly, the second may also be referred to as the first.

[0053] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.

[0054] It should also be noted that the term "includes", "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, so that a commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the commodity or device including the elements.

[0055] It should be particularly noted that any symbols and / or numbers in the specification that are not marked in the accompanying drawings are not drawing marks.

[0056] Example 1

[0057] See also Figure 1-Figure 3 As shown, an embodiment of the present application provides a rainproof performance detection device, which is arranged at one end of the shower line 1, and includes: two spray door frames 2 with the same structure and symmetrically arranged; the spray door frame 2 is connected to the line pipe 11 of the shower line, and the spray door frame 2 is provided with a plurality of nozzles 21 on the side facing the shower line; the two spray door frames 2 are respectively rotatably arranged on both sides of the shower line 1, so that the spray door frames 2 are perpendicular or parallel to the driving direction of the vehicle.

[0058] The rainproof performance detection device of this embodiment is arranged at least at one end of the front end or rear end of the rain line body 1, and the rainproof sealing performance of the front end or rear end or both ends of the vehicle are simultaneously detected.

[0059] Two spray door frames 2 are rotatably arranged on both sides of the shower line 1 to form an open-and-close rain test device. This design allows the spray door frame 2 to switch between perpendicular to the vehicle's travel direction and parallel to the vehicle's travel direction. When parallel to the vehicle's travel direction, the vehicle is allowed to pass; when perpendicular to the vehicle's travel direction, the vehicle end is tested for rainproof sealing performance. Each spray door frame 2 is connected to the line pipe 11 of the shower line 1 to ensure sufficient water pressure and water supply. This avoids the problem of cumbersome manual operation caused by the need to connect an independent water supply pipe when manually carrying a movable shower device.

[0060] Each spray door frame 2 is provided with a plurality of nozzles 21 on one side facing the shower line 1. The nozzles 21 are evenly distributed to ensure that each part of the vehicle end can be covered during spraying to achieve a comprehensive test. The number and layout of the nozzles 21 can be adjusted according to the specific vehicle model and test requirements.

[0061] During the test, the vehicle to be tested travels along the rain line 1 to the detection device, the spray door frame 2 is rotated to make it perpendicular to the vehicle's driving direction, the spray system is started, and water is sprayed to the vehicle through the nozzle 21 to simulate the rainy day environment. The water seepage inside the vehicle is observed and recorded to evaluate its rainproof sealing performance.

[0062] Furthermore, the spray door frame 2 includes a main pipe 22 and a plurality of branch pipes 23; the two main pipes 22 are vertically and rotatably arranged on both sides of the shower line 1, and the main pipes 22 are respectively connected to the line pipe 11 and the branch pipes 23; a plurality of branch pipes 23 are vertically and spacedly connected to the main pipe 22, and a plurality of the nozzles 21 are evenly arranged on the branch pipe 23 toward one side of the shower line 1; the spray door frame 2 rotates along its own axis through the main pipe 22, so that the branch pipe 23 is vertical or parallel to the driving direction of the vehicle.

[0063] The line pipe 11 is responsible for providing water source for the spray door frame 2, and the main pipe 22 is responsible for distributing the water source to the branch pipe 23. The branch pipe 23 forms the skeleton of the spray door frame 2. The nozzles 21 evenly arranged on the branch pipe 23 can ensure the uniform distribution of the water flow and improve the uniformity and consistency of the test.

[0064] Furthermore, the spray door frame 2 also includes a support frame 24 ; the support frame 24 is supported on the branch pipe 23 .

[0065] Specifically, each branch pipe 23 is connected to the support frame 24 by bolts. The support frame 24 provides additional support for the branch pipe 23, enhances its load-bearing capacity, and helps prevent the branch pipe 23 from being deformed or damaged due to water flow pressure or long-term use. At the same time, the stable support frame 24 can ensure that the position of the nozzle 21 is stable during the water spraying process, avoiding displacement due to water flow impact or pipe vibration, thereby affecting the test effect.

[0066] Furthermore, the shower door frame 2 is axially rotated around the main pipeline 22 through the telescopic cylinder 3; the first end of the telescopic cylinder 3 is fixedly connected to the support frame 24, and the second end is rotatably connected to the shower line body 1.

[0067] The telescopic cylinder 3 provides power for the rotation of the spray door frame 2. When the telescopic cylinder 3 is extended, the support frame 24 is pushed to drive the spray door frame 2 to rotate around the axial direction of the main pipe 22, so that the spray door frame 2 is closed, and the branch pipe 22 is perpendicular to the direction of vehicle travel; when the telescopic cylinder 3 is retracted, the support frame 24 is pulled to drive the spray door frame 2 to rotate in the opposite direction around the axial direction of the main pipe 22, so that the spray door frame 2 is opened, and the branch pipe 22 is parallel to the direction of vehicle travel. In the above process, the telescopic cylinder 3 is connected to the shower line body 1 through the rotation of the second end to achieve synchronous rotation with the spray door frame 2.

[0068] The telescopic cylinder 3 can be remotely or automatically controlled, making the operation more convenient. The operator can adjust and operate without close contact with the spray door frame 2, and there is no need to frequently move or bend over to adjust the equipment.

[0069] Furthermore, the first end of the telescopic cylinder 3 is fixedly connected to the supporting frame 24 through the first connecting frame 31, and the second end is rotatably connected to the shower line body 1 through the second connecting frame 32; the first connecting frame 31 includes a first connecting rod 311 and a second connecting rod 312, and the first end of the first connecting rod 311 and the first end of the second connecting rod 312 are connected in an L shape, the second end of the first connecting rod 311 is fixed to the supporting frame 24, and the second end of the second connecting rod 312 is connected to the first end of the telescopic cylinder 3; the second connecting frame 32 includes a third connecting rod 321 and a fourth connecting rod 322, the first end of the third connecting rod 321 and the first end of the fourth connecting rod 322 are connected in an L shape, the second end of the third connecting rod 321 is fixed to the shower line body 1, and the second end of the telescopic cylinder 3 is rotatably connected to the second end of the fourth connecting rod 322.

[0070] In order to arrange the telescopic cylinder 3 in a limited space, when the shower door frame 2 is in the open state, the telescopic cylinder 3 is set parallel to the vehicle's driving direction. In order to make the telescopic cylinder 3 that performs linear motion push or pull the shower door frame 2 to rotate, the first connecting frame 31 is set in an L shape, the second connecting rod 312 is parallel to the telescopic cylinder, and the first connecting rod 311 is perpendicular to the telescopic cylinder 3 and the shower door frame 2 at the same time, so that the linear force of the telescopic cylinder 3 is transmitted as a rotational force. The second connecting frame 32 is set in an L shape to make the structure have higher strength and rigidity, and can withstand greater force and torque, thereby ensuring a stable connection between the telescopic cylinder and the shower line 1.

[0071] Furthermore, the rainproof performance detection device also includes a base 25 ; the base 25 is fixed on the ground, and the lower end of the main pipe 22 is rotatably connected to the upper end of the base 25 .

[0072] The base 25 is the support base of the entire shower door frame 2. The base 25 is fixed on the ground to significantly improve the load-bearing capacity of the entire device, which helps to ensure that the shower door frame 2 remains stable and does not shake when it is subjected to a large impact force of water flow or vibration when a vehicle moves.

[0073] Furthermore, the upper end of the main pipeline 22 is connected to the line pipeline 11 through the rotating flange 4, and rotates around its own axis through the rotating flange 4.

[0074] Furthermore, the rotating flange 4 is hollow and connected between the line pipe 11 and the main pipe 22 ; the first end of the rotating flange 4 is rotatably connected to the line pipe 11 , and the second end is fixedly connected to the upper end of the main pipe 22 .

[0075] The hollow rotating flange 4 allows water to flow through, thereby achieving communication between the main pipeline 22 and the line pipeline 11. At the same time, the axial rotation of the main pipeline 22 is achieved through the rotating flange 4.

[0076] Example 2

[0077] See also Figure 1-Figure 5 As shown, this embodiment provides a rainproof performance detection system, including:

[0078] The shower line 1; the rainproof performance detection device, which is arranged at at least one end of the shower line 1, and the spray door frame 2 rotates axially around the main pipe 22 to make the branch pipe 23 parallel or perpendicular to the vehicle's driving direction; a photoelectric switch sensor, which is arranged at a preset stop position of the vehicle and is used to monitor whether the vehicle reaches the preset stop position; a control device 5, which is electrically connected to the photoelectric switch sensor, the telescopic cylinder 3 and the switch of the shower line 1, respectively, and is used to control the extension of the telescopic cylinder 3 after the photoelectric switch sensor monitors that the vehicle reaches the preset stop position, control the switch of the shower line 1 to open or close, and control the contraction of the telescopic cylinder 3 after the spray test is completed.

[0079] The shower line 1 is usually designed in a long strip shape, used to carry the vehicle to be tested and guide it to travel along a predetermined route. Multiple nozzles are provided on both sides and the top of the shower line to spray water. The rainproof performance detection device is arranged at one end or both ends of the shower line, and the shower line 1 and the rainproof performance detection device together constitute a spray shed for testing the rainproof performance of the whole vehicle.

[0080] When the vehicle reaches the preset stop position, the photoelectric switch sensor will send a signal to notify the control device 5 to perform the next operation. This ensures the accuracy and safety of the test and avoids test errors or safety accidents caused by improper vehicle position.

[0081] When the photoelectric switch sensor detects that the vehicle has reached the preset stop position, the control device 5 will control the telescopic cylinder 3 to extend, drive the spray door frame 2 to rotate 90° around the main pipe 22, and make the branch pipe 23 perpendicular to the vehicle's travel direction. After that, the control device 5 will control the switch of the rain line body 1 to open and start the spray test. After the test is completed, the control device 5 will control the switch of the rain line body 1 to close and stop spraying. After stopping spraying, the control device 5 will control the telescopic cylinder 3 to contract and drive the spray door frame 2 to rotate 90° in the opposite direction around the main pipe 22, so that the branch pipe 23 is parallel to the vehicle's travel direction, that is, the spray door frame 2 returns to its initial position to prepare for the next test.

[0082] This embodiment realizes automatic monitoring of the vehicle reaching a preset stop position and automatic control of the spray test through the coordinated use of the photoelectric switch sensor and the control device 5, thereby reducing manual operations and improving the efficiency and accuracy of detection.

[0083] Furthermore, the rainproof performance detection system also includes an air compressor 6 and a solenoid valve, the solenoid valve is connected between the air compressor 6 and the telescopic cylinder 3; the control device 5 is electrically connected to the air compressor 6, for controlling the air intake or exhaust of the air compressor 6; the control device 5 is electrically connected to the solenoid valve, for controlling the extension or contraction of the telescopic cylinder 3.

[0084] The air compressor 6, as an air source device, is responsible for providing a stable air pressure for the entire system. It can compress the external air and store it in the air tank for use by the telescopic cylinder 3. The telescopic cylinder 3 performs air intake or exhaust according to the instructions of the control device 5. The solenoid valve, as a pneumatic control element, is responsible for controlling the air flow channel between the air compressor 6 and the telescopic cylinder 3. According to the instructions of the control device 5, it enables the air pressure output by the air compressor 6 to be transmitted to the designated end of the telescopic cylinder 3, thereby realizing the extension or contraction of the telescopic cylinder 3.

[0085] Example 3

[0086] This embodiment provides a control method for the above-mentioned rainproof performance detection system, including the following steps:

[0087] S1, the photoelectric sensor monitors whether the vehicle reaches the preset stop position; if so, transmits a signal to the control device 5;

[0088] S2, the control device 5 controls the telescopic cylinder 3 to extend according to the signal, driving the spray door frame 2 to rotate 90° around the main pipe 22 axially, so that the branch pipe 23 is perpendicular to the driving direction of the vehicle;

[0089] S3, the control device 5 controls the switch of the shower line 1 to turn on for a spray test; after the test is completed, the control device 5 controls the switch of the shower line 1 to turn off to stop spraying;

[0090] S4. After the spraying stops, the control device 5 controls the telescopic cylinder 3 to contract, driving the spray door frame 2 to rotate 90° in the opposite direction around the main pipe 22 axially, so that the branch pipe 23 is parallel to the driving direction of the vehicle.

[0091] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other. For the system or device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part description.

[0092] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A rainproof performance detection device, characterized in that: Arranged at at least one end of the shower line (1), comprising: two shower door frames (2) having the same structure and being symmetrically arranged; The spray door frame (2) is in communication with the line pipe (11) of the shower line (1), and a plurality of nozzles (21) are arranged on one side of the spray door frame (2) facing the shower line (1); The two spray door frames (2) are rotatably arranged on both sides of the shower line (1) so that the spray door frames (2) are perpendicular or parallel to the driving direction of the vehicle.

2. The rainproof performance detection device according to claim 1, characterized in that: The spray door frame (2) comprises a main pipeline (22) and a plurality of branch pipelines (23); The two main pipes (22) are vertically and rotatably arranged on both sides of the shower line (1), and the main pipes (22) are respectively connected to the line pipe (11) and the branch pipe (23); A plurality of branch pipes (23) are vertically and spaced apart connected to the main pipe (22), and a plurality of nozzles (21) are evenly arranged on one side of the branch pipe (23) facing the shower line (1); The spray door frame (2) is rotated along its own axial direction through the main pipe (22), so that the branch pipe (23) is perpendicular or parallel to the driving direction of the vehicle.

3. The rainproof performance detection device according to claim 2, characterized in that: The spray door frame (2) further comprises a support frame (24); the support frame (24) is supported on the branch pipe (23).

4. The rainproof performance detection device according to claim 3, characterized in that: The spray door frame (2) is axially rotated around the main pipeline (22) via a telescopic cylinder (3); The first end of the telescopic cylinder (3) is fixedly connected to the support frame (24), and the second end is rotatably connected to the shower line (1).

5. The rainproof performance detection device according to claim 4, characterized in that: The first end of the telescopic cylinder (3) is fixedly connected to the support frame (24) via a first connecting frame (31), and the second end is rotatably connected to the shower line (1) via a second connecting frame (32); The first connecting frame (31) comprises a first connecting rod (311) and a second connecting rod (312), the first end of the first connecting rod (311) and the first end of the second connecting rod (312) are connected in an L shape, the second end of the first connecting rod (311) is fixed to the supporting frame (24), and the second end of the second connecting rod (312) is connected to the first end of the telescopic cylinder (3); The second connecting frame (32) comprises a third connecting rod (321) and a fourth connecting rod (322), the first end of the third connecting rod (321) and the first end of the fourth connecting rod (322) are connected in an L shape, the second end of the third connecting rod (321) is fixed to the shower line body (1), and the second end of the telescopic cylinder (3) is rotatably connected to the second end of the fourth connecting rod (322).

6. The rainproof performance detection device according to claim 4, characterized in that: Also includes a base (25); The base (25) is fixed on the ground, and the lower end of the main pipeline (22) is rotatably connected to the upper end of the base (25).

7. The rainproof performance detection device according to claim 4, characterized in that: The upper end of the main pipeline (22) is connected to the line pipeline (11) through a rotating flange (4), and rotates around its own axis through the rotating flange (4).

8. The rainproof performance detection device according to claim 7, characterized in that: The rotating flange (4) is hollow and connected between the line pipe (11) and the main pipe (22); The first end of the rotating flange (4) is rotatably connected to the line pipe (11), and the second end is fixedly connected to the upper end of the main pipe (22).

9. A rainproof performance detection system, characterized in that: include: The rain line body (1); The rainproof performance detection device according to any one of claims 4 to 8, wherein the rainproof performance detection device is arranged at at least one end of the rain shower line (1), and the spray door frame (2) rotates axially around the main pipe (22) so that the branch pipe (23) is parallel or perpendicular to the driving direction of the vehicle; A photoelectric switch sensor is arranged at a preset stop position of the vehicle and is used to monitor whether the vehicle has reached the preset stop position; A control device (5) is electrically connected to the photoelectric switch sensor, the telescopic cylinder (3) and the switch of the shower line (1) respectively, and is used to control the extension of the telescopic cylinder (3) and the opening or closing of the switch of the shower line (1) after the photoelectric switch sensor detects that the vehicle has reached a preset stop position, and to control the contraction of the telescopic cylinder (3) after the spray test is completed.

10. A control method for the rainproof performance detection system according to claim 9, characterized in that: The following steps are involved: S1, the photoelectric sensor monitors whether the vehicle reaches a preset stop position; if so, transmits a signal to the control device (5); S2, the control device (5) controls the telescopic cylinder (3) to extend according to the signal, and drives the spray door frame (2) to rotate 90 degrees around the main pipe (22) in the axial direction, so that the branch pipe (23) is perpendicular to the driving direction of the vehicle; S3, the control device (5) controls the switch of the rain shower line (1) to turn on and perform a spray test; After the test is completed, the control device (5) controls the switch of the shower line (1) to be turned off to stop spraying; S4. After the spraying stops, the control device (5) controls the telescopic cylinder (3) to retract, driving the spray door frame (2) to rotate 90° in the opposite direction around the main pipe (22) in the axial direction, so that the branch pipe (23) is parallel to the driving direction of the vehicle.

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