Safety protection system for vehicle collision test

By using a safety protection system of battery detection device and drag device in electric vehicle collision test, the safety risk problems caused by short circuit fire of power battery modules are solved, and rapid response and cooling treatment are achieved, reducing the risk of fire and explosion , improve personal safety and equipment protection.

CN222461039UActive Publication Date: 2025-02-11GUANGZHOU AUTOMOBILE GROUP CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202323548861.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-12-25
Publication Date
2025-02-11
Estimated Expiration
2033-12-25

AI Technical Summary

Technical Problem

In electric vehicle collision tests, the power battery module may cause a short circuit of the battery cell due to extrusion deformation, causing thermal runaway, causing fire, causing personal safety risks and equipment damage.

Method used

Design a safety protection system, including a battery detection device, a fire water tank and a drag device. The battery detection device monitors the battery status in real time through a temperature sensor and a signal transmitter, while the towing device uses a winch mechanism and a traction rope to quickly drag the test vehicle into the fire water tank for cooling.

Benefits of technology

The system can respond quickly when there is a safety risk for the battery, reduce rescue reaction time and transfer time of the test vehicle, reduce the risk of fire expansion or explosion, reduce equipment losses, and improve personal safety.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222461039U_ABST
    Figure CN222461039U_ABST
Patent Text Reader

Abstract

The utility model discloses a safety protection system for a vehicle collision test, and the system comprises a battery detection device which is used for detecting the state of a battery of a test vehicle; a fire pool; and the dragging device comprises a hoisting mechanism and a traction rope, one end of the traction rope is wound on the hoisting mechanism, the other end of the traction rope is used for being connected with the test vehicle, and the dragging device is configured to be suitable for dragging the test vehicle into the fire pool from the test area. According to the safety protection system provided by the utility model, the battery detection device and the dragging device are arranged, so that the emergency response time and the transfer time of the test vehicle can be reduced, the response speed is improved, and the risk of fire expansion or explosion in the transfer process of the vehicle can be reduced; therefore, loss of equipment in a test area and equipment on a test vehicle can be reduced, intervention of rescue personnel can be avoided, the probability that field personnel are damaged can be reduced, and personal safety can be improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle collision tests, in particular to a safety protection system for vehicle collision tests. Background Art

[0002] The collision test is a necessary test to verify the passive safety performance of the vehicle body structure, restraint system, dummy injury, etc. As the market share of electric vehicles increases, there are more and more collision tests in electric vehicle projects. In the research and development stage of electric vehicles, collision simulation alone cannot predict whether there is a risk of fire in the power battery. If the power battery module is squeezed and deformed during the collision test, it may cause a short circuit inside the battery cell and thermal runaway, causing the power battery to catch fire. When the power battery catches fire, a large amount of harmful gas will be generated and there is a possibility of explosion, which will bring great personal safety risks to the test firefighters at the test site and cause great damage to the equipment and facilities in the test room. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a safety protection system for vehicle collision testing, which can reduce the emergency response time and the transfer time of the test vehicle, improve the response speed, reduce the risk of fire expansion or explosion during the transfer of the vehicle, reduce the loss of equipment in the test area and equipment on the test vehicle, and avoid the intervention of rescue personnel, reduce the probability of on-site personnel being injured, and improve personal safety.

[0004] According to the utility model, the safety protection system for vehicle collision test includes: a battery detection device, the battery detection device is used to detect the status of the battery of the test vehicle; a fire water tank; a towing device, the towing device includes a hoisting mechanism and a traction rope, one end of the traction rope is wound around the hoisting mechanism, and the other end of the traction rope is used to connect the test vehicle, and the towing device is configured to be suitable for towing the test vehicle from the test area to the fire water tank.

[0005] According to the safety protection system for vehicle collision test of the utility model, by arranging a battery detection device and a towing device, it is possible to timely detect whether the battery of the test vehicle has a safety risk, and when the battery has a safety risk, the test vehicle can be directly towed into the fire water tank for cooling treatment. In this way, the emergency response time and the transfer time of the test vehicle can be reduced, the response speed can be improved, and the risk of fire expansion or explosion during the transfer of the vehicle can be reduced, thereby reducing the loss of equipment in the test area and equipment on the test vehicle. At the same time, the intervention of rescue personnel can be avoided, thereby reducing the probability of on-site personnel being injured, thereby further improving personal safety.

[0006] According to some embodiments of the utility model, the battery detection device includes: a temperature sensor, which is used to collect the temperature of the battery of the test vehicle; a temperature monitoring module, which is electrically connected to the temperature sensor; a signal transmitter, which is electrically connected to the temperature monitoring module. The towing device also includes a first signal receiving module, which is electrically connected to the winch mechanism, and the first signal receiving module is configured to receive a signal transmitted by the signal transmitter.

[0007] According to some embodiments of the utility model, the safety protection device also includes: an alarm device, the alarm device includes a second signal receiving module and an alarm, the second signal receiving module is configured to be suitable for receiving the signal transmitted by the signal transmitter, and the alarm is electrically connected to the second signal receiving module.

[0008] According to some embodiments of the present invention, there are multiple alarms, and the multiple alarms are arranged at intervals.

[0009] According to some embodiments of the present invention, the fire water pool is arranged outdoors.

[0010] According to some embodiments of the present invention, the fire water pool is lower than the ground where the fire water pool is located.

[0011] According to some embodiments of the present invention, the depth of the water in the fire water pool is less than or equal to the distance between the upper surface of the battery of the test vehicle and the lowest point of the wheel.

[0012] According to some embodiments of the utility model, the fire water pool is provided with a water inlet pipe, the water inlet pipe is provided with a water inlet valve, the fire water pool is provided with an overflow pipe, the overflow pipe is provided with an overflow valve, the fire water pool is provided with a drain hole, and a drain valve is provided at the drain hole.

[0013] According to some embodiments of the present invention, the towing device is arranged on a side of the fire water tank away from the test area of ​​the test vehicle.

[0014] According to some embodiments of the utility model, the other end of the traction rope is provided with a hook, and the hook is suitable for being engaged with the test vehicle.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1is a schematic diagram of a safety protection system for vehicle collision test according to an embodiment of the utility model;

[0017] Figure 2 is a schematic diagram of a safety protection system for a vehicle collision test according to an embodiment of the utility model in another state;

[0018] Figure 3 It is the installation diagram of the battery testing device and the test vehicle;

[0019] Figure 4 is a schematic diagram of a second signal receiving module;

[0020] Figure 5 It is a schematic diagram of the alarm;

[0021] Figure 6 It is a schematic diagram of the arrangement of the towing device and the fire water tank;

[0022] Figure 7 It is a schematic diagram of the fire pool;

[0023] Figure 8 This is a partial schematic diagram of the fire water tank.

[0024] Reference numerals:

[0025] 100. Safety protection system;

[0026] 10. Battery detection device; 11. Temperature sensor; 12. Temperature monitoring module; 13. Signal transmitter;

[0027] 20. Alarm device; 21. Second signal receiving module; 22. Alarm;

[0028] 30. Towing device; 31. Hoisting mechanism; 32. Towing rope; 321. Hook; 33. First signal receiving module;

[0029] 40. Fire water tank; 41. Water inlet valve; 42. Overflow valve; 43. Drain valve;

[0030] 200. Test vehicle. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0032] Reference below Figure 1-Figure 8A safety protection system 100 for a vehicle collision test according to an embodiment of the present invention is described.

[0033] like Figure 1-Figure 2 and Figure 6 As shown, the safety protection system 100 for vehicle collision test according to an embodiment of the present utility model includes: a battery detection device 10 , a fire water pool 40 and a towing device 30 .

[0034] Specifically, the battery detection device 10 is used to detect the status of the battery of the test vehicle 200, wherein the battery status may include smoke conditions, fire conditions, temperature conditions, etc. The fire water pool 40 has a certain height of water in it, which is used to cool down and extinguish the fire of the vehicle after the test. The fire water pool 40 is set on one side of the test area to avoid affecting the test of the test vehicle 200 in the test area.

[0035] The towing device 30 includes a hoisting mechanism 31 and a towing rope 32, one end of the towing rope 32 is wound around the hoisting mechanism 31, and the other end of the towing rope 32 is used to connect the test vehicle 200. The towing device 30 is configured to be suitable for towing the test vehicle 200 from the test area to the fire water tank 40. When the battery detection device 10 detects that the battery state of the test vehicle 200 is abnormal, for example, abnormal temperature rise, smoke or fire, the towing device 30 is started, and the towing device 30 tows the test vehicle 200 to the fire water tank 40 for cooling and fire extinguishing.

[0036] Specifically, when the battery detection device 10 detects that the battery status of the test vehicle 200 is abnormal, the towing device 30 is started, the hoisting mechanism 31 reels in the traction rope 32, and the traction rope 32 drags the test vehicle 200 toward the fire water tank 40 until the test vehicle 200 is dragged into the fire water tank 40, and the towing mechanism stops towing.

[0037] According to the safety protection system 100 for vehicle collision test of the embodiment of the utility model, by providing a battery detection device 10 and a towing device 30, it is possible to timely detect whether the battery of the test vehicle 200 has a safety risk, and when the battery has a safety risk, the test vehicle 200 can be directly towed to the fire water tank 40 for cooling treatment. In this way, the emergency response time and the transfer time of the test vehicle 200 can be reduced, the response speed can be improved, and the risk of fire expansion or explosion of the test vehicle 200 during the transfer process can be reduced, thereby reducing the loss of equipment in the test area and the equipment on the test vehicle 200. At the same time, the intervention of rescue personnel can be avoided, thereby reducing the probability of injury to on-site personnel, thereby further improving personal safety.

[0038] According to some embodiments of the present invention, Figure 3As shown, the battery detection device 10 includes: a temperature sensor 11, a temperature monitoring module 12 and a signal transmitter 13. The temperature sensor 11 is used to collect the temperature of the battery of the test vehicle 200; the temperature monitoring module 12 is electrically connected to the temperature sensor 11; the temperature monitoring module 12 is used to receive the signal sent by the temperature sensor 11, detect the temperature of the battery in real time, and judge the battery status.

[0039] The signal transmitter 13 is electrically connected to the temperature monitoring module 12 . The towing device 30 further includes a first signal receiving module 33 . The first signal receiving module 33 is electrically connected to the hoisting mechanism 31 , and the first signal receiving module 33 is configured to receive a signal transmitted by the signal transmitter 13 .

[0040] Among them, signal transmission using the signal transmitter 13 and the first signal receiving module 33 can realize remote transmission, thereby increasing the reaction speed and reducing the reaction time, thereby further improving personal safety, while no additional wiring harness is needed, further reducing the cost of the collision test.

[0041] Specifically, the temperature sensor 11 transmits the battery temperature of the test vehicle 200 to the temperature monitoring module 12. The temperature monitoring module 12 determines whether the battery temperature reaches the preset temperature. When the battery temperature reaches the preset temperature, the signal transmitter 13 sends a signal to the outside. The first signal receiving module 33 receives the signal and starts the winch mechanism 31. The winch mechanism 31 drives the traction rope 32 to wind around the winch mechanism 31, and drags the test vehicle 200 into the fire water tank 40 for cooling treatment.

[0042] Furthermore, the temperature sensor 11 can be installed inside the battery box of the test vehicle 200 to detect the temperature of the battery module. In this way, the reaction time can be further shortened, thereby further reducing the probability of battery fire and explosion in the test room and reducing the loss of facilities during the vehicle 200 test.

[0043] According to some embodiments of the present invention, Figure 1 and Figure 4-Figure 5As shown, the safety protection device also includes: an alarm device 20, the alarm device 20 includes a second signal receiving module 21 and an alarm 22, the second signal receiving module 21 is configured to be suitable for receiving the signal transmitted by the signal transmitter 13, and the alarm 22 is electrically connected to the second signal receiving module 21. Among them, the alarm device 20 is mainly used to send out an alarm signal to notify the test personnel and visitors to evacuate the laboratory according to the evacuation channel. Specifically, the second signal receiving module 21 can remotely receive the signal transmitted by the signal transmitter 13, and then transmit the received signal to the alarm 22, and the alarm 22 sends out an alarm, wherein the second signal receiving module 21 remotely receives the signal transmitted by the signal transmitter 13, which can reduce the reaction time of the alarm device 20, so that the on-site personnel can quickly leave the laboratory at the first time, and further ensure the safety of the on-site personnel.

[0044] According to some embodiments of the present invention, Figure 1 As shown, there are multiple alarms 22, and the multiple alarms 22 are arranged at intervals. For example, the number of alarms 22 can be two, three or more, and the multiple alarms 22 are arranged at intervals, and information can be transmitted to testers and visitors distributed at various positions in the laboratory at multiple positions, so that all personnel inside the laboratory can receive the alarm signal in time, and then can be quickly transferred, thereby further ensuring the personal safety of testers and visitors.

[0045] The alarm 22 may be of various types. For example, the alarm 22 may be an audible and visual alarm.

[0046] According to some embodiments of the present invention, Figure 1-Figure 2 As shown, the fire water pool 40 is arranged outdoors. In this way, the damage to the equipment and facilities inside the test area caused by battery fire can be effectively avoided, and the safety risk to the test firefighters caused by the large amount of smoke generated by the fire water extinguishing in the test room can also be effectively avoided.

[0047] According to some embodiments of the present invention, the fire water pool 40 is lower than the ground where the fire water pool 40 is located. It can be understood that the fire water pool 40 is formed by digging a groove on the ground, so that when the test vehicle 200 has a safety risk and needs to be towed to the pool, it can be directly towed into the pool without other additional equipment, thereby further reducing the processing time and improving the processing speed.

[0048] Furthermore, the side wall of the fire water pool 40 facing the test area can be designed as a slope, which is convenient for the test vehicle 200 to move in and out.

[0049] According to some embodiments of the present invention, the depth of water in the fire water pool 40 is less than or equal to the distance between the upper surface of the battery and the lowest point of the wheel of the test vehicle 200. In this way, the risk of damage to the test equipment on the test vehicle 200 that is not removed in time can be effectively reduced, thereby reducing the loss of the test vehicle 200 during the test process.

[0050] According to some embodiments of the present invention, Figure 7-Figure 8 As shown, the fire water pool 40 is provided with a water inlet pipe, a water inlet valve 41 is provided on the water inlet pipe, an overflow pipe is provided on the overflow pipe, an overflow valve 42 is provided on the overflow pipe, and a drain hole is provided on the fire water pool 40, and a drain valve 43 is provided at the drain hole. The water inlet pipe and the water inlet valve 41 are used for water inlet to the fire water pool 40, and the water inlet valve 41 can be used to control the water inlet amount. When the water in the fire water pool 40 reaches the required height, the water inlet valve 41 is closed; the overflow pipe can discharge the water exceeding the water level, thereby preventing the water level from exceeding the upper surface of the battery, and reducing the risk of damage to the test equipment on the vehicle 200 that cannot be removed in time; the drain valve 43 is used to discharge the contaminated water in the fire water pool 40, thereby realizing the replacement of the water inside the fire water pool 40.

[0051] According to some embodiments of the present invention, Figure 6-Figure 7 As shown, the towing device 30 is arranged on one side of the fire water tank 40 away from the test area of ​​the test vehicle 200, which is conducive to towing the test vehicle 200 into the fire water tank 40, thereby reducing the towing path, allowing the safety protection device to quickly, safely, accurately and effectively eliminate risks at the first time, thereby further ensuring the personal safety of the staff.

[0052] According to some embodiments of the present invention, Figure 6 As shown, the other end of the traction rope 32 is provided with a hook 321, which is suitable for being hooked with the test vehicle 200. The hook connection facilitates the connection and separation of the traction rope 32 and the test vehicle 200, thereby improving the convenience of connection and removal of the towing device 30 and the test vehicle 200.

[0053] The following will refer to Figure 1-Figure 8 A safety protection system 100 for a vehicle collision test according to a specific embodiment of the present invention is described.

[0054] Reference Figure 1 The safety protection system 100 includes a battery detection device 10, a fire water tank 40, a towing device 30 and an alarm device 20. The battery detection device 10 is arranged on the test vehicle 200, the fire water tank 40 is arranged outside the test room, the towing device 30 is arranged on the side of the fire water tank 40 away from the test area of ​​the test vehicle 200, and the alarm device 20 is arranged on the side wall of the test room.

[0055] Specifically, the battery detection device 10 includes: a temperature sensor 11, a temperature monitoring module 12 and a signal transmitter 13, wherein the temperature sensor 11 is arranged inside the battery box to measure the temperature of the battery module, and the temperature sensor 11 and the signal transmitter 13 are arranged in the non-collision area of ​​the test vehicle 200. Further, the temperature sensor 11 is electrically connected to the temperature monitoring module 12, and the temperature monitoring module 12 is electrically connected to the signal transmitter 13.

[0056] The fire water pool 40 is arranged outside the test room, wherein the fire water pool 40 is lower than the ground where the fire water pool 40 is located, and the depth of the water in the fire water pool 40 is equal to the distance between the upper surface of the battery of the test vehicle 200 and the lowest point of the wheel. Further, the fire water pool 40 is provided with a water inlet pipe, on which a water inlet valve 41 is arranged, the fire water pool 40 is provided with an overflow pipe, on which an overflow valve 42 is arranged, and the fire water pool 40 is provided with a drain hole, at which a drain valve 43 is arranged.

[0057] The towing device 30 includes: a first signal receiving module 33, a hoisting mechanism 31 and a traction rope 32, wherein the first signal receiving module 33 is electrically connected to the hoisting mechanism 31, one end of the traction rope 32 is wound on the hoisting mechanism 31, and the other end is provided with a hook 321, and the traction rope 32 is connected to the test vehicle 200 by the hook 321. Further, the first signal receiving module 33 can receive a signal sent by the signal transmitter 13, start the hoisting mechanism 31, make the hoisting mechanism 31 reel in the traction rope 32, and drag the test vehicle 200 to the fire water pool 40 for cooling and fire extinguishing.

[0058] The alarm device 20 includes a second signal receiving module 21 and an alarm 22, wherein the second signal receiving module 21 is configured to be suitable for receiving the signal transmitted by the signal transmitter 13, and the alarm 22 is electrically connected to the second signal receiving module 21. The alarm 22 includes two alarms 22, which are respectively arranged on the side wall of the test area and the side wall of the visiting area.

[0059] When a collision test is performed on a vehicle, the battery detection device 10 is first installed on the test vehicle 200, and the hoisting mechanism 31 is remotely controlled to release the traction rope 32 to the starting position of the test vehicle 200, and is connected to the test vehicle 200 through the hook 321. At the same time, the water inlet valve 41 is opened to inject a specified amount of water into the fire water tank 40.

[0060] After the vehicle collision test, if the temperature monitoring module 12 detects that the battery temperature is higher than 60°C, the signal transmitter 13 sends a signal to the outside, and the first signal receiving module 33 and the second signal receiving module 21 simultaneously receive the signal sent by the signal transmitter 13, and synchronously start the hoisting mechanism 31 and the alarm 22, so that the towing device 30 drags the abnormal test vehicle 200 toward the fire water tank 40, and the alarm 22 sends an alarm signal to notify the test personnel and visitors to evacuate the laboratory.

[0061] According to the safety protection system 100 for vehicle collision test of the embodiment of the utility model, a battery detection device 10 and a towing device 30 are provided, which can timely detect whether there is a safety risk in the battery of the test vehicle 200, and when the battery has a safety risk, the test vehicle 200 can be directly towed to the fire water tank 40 for cooling treatment. In this way, the emergency response time and the transfer time of the test vehicle 200 can be reduced, the response speed can be improved, and the risk of fire expansion or explosion during the transfer of the vehicle 200 can be reduced, and the loss of equipment in the test area and the equipment on the test vehicle 200 can be reduced. At the same time, the intervention of rescue personnel can be avoided, and the probability of on-site personnel being injured can be reduced, thereby further improving personal safety.

[0062] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0063] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0064] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0065] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0066] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A safety protection system for vehicle collision test, characterized in that: include: A battery detection device, the battery detection device is used to detect the state of the battery of the test vehicle; Fire water tank; A towing device, the towing device includes a hoisting mechanism and a towing rope, one end of the towing rope is wound around the hoisting mechanism, and the other end of the towing rope is used to connect the test vehicle. The towing device is configured to be suitable for towing the test vehicle from the test area to the fire water tank.

2. The safety protection system according to claim 1, characterized in that: The battery detection device comprises: A temperature sensor, the temperature sensor is used to collect the temperature of the battery of the test vehicle; A temperature monitoring module, wherein the temperature monitoring module is electrically connected to the temperature sensor; A signal transmitter, the signal transmitter is electrically connected to the temperature monitoring module; The towing device further includes a first signal receiving module, which is electrically connected to the hoisting mechanism and is configured to receive a signal transmitted by the signal transmitter.

3. The safety protection system according to claim 2, characterized in that: Also includes: The alarm device comprises a second signal receiving module and an alarm, wherein the second signal receiving module is configured to receive the signal transmitted by the signal transmitter, and the alarm is electrically connected to the second signal receiving module.

4. The safety protection system according to claim 3, characterized in that: There are multiple alarms, and the multiple alarms are arranged at intervals.

5. The safety protection system according to claim 1, characterized in that: The fire water pool is arranged outdoors.

6. The safety protection system according to claim 1, characterized in that: The fire water pool is lower than the ground where the fire water pool is located.

7. The safety protection system according to claim 1, characterized in that: The depth of the water in the fire water pool is less than or equal to the distance between the upper surface of the battery of the test vehicle and the lowest point of the wheel.

8. The safety protection system according to claim 1, characterized in that: The fire water pool is provided with a water inlet pipe, on which a water inlet valve is arranged, the fire water pool is provided with an overflow pipe, on which an overflow valve is arranged, the fire water pool is provided with a drainage hole, and at the position of the drainage hole a drainage valve is arranged.

9. The safety protection system according to claim 1, characterized in that: The towing device is arranged at a side of the fire water tank away from a test area of ​​the test vehicle.

10. The safety protection system according to claim 1, characterized in that: The other end of the traction rope is provided with a hook, and the hook is suitable for being engaged with the test vehicle.