Test vehicle traction positioning structure convenient to disassemble and assemble and used for environment bin

Abstract

The utility model discloses a test car traction positioning structure convenient to disassemble and assemble for an environment bin, which comprises a portal frame, a quick disassembly device and a traction assembly, the portal frame is arranged in the environment bin, and the quick disassembly device is arranged on the portal frame; one end of the traction assembly is detachably mounted on the quick release device, and the other end of the traction assembly is mounted on the test vehicle; the quick release device comprises a base plate and a driving assembly, the base plate is mounted on the portal frame, and the driving assembly is mounted on the base plate; a limiting groove is formed in the base plate, one end of the traction assembly is installed in the limiting groove, and the traction assembly is configured to be capable of being driven by the driving assembly to be disengaged from the limiting groove. One end of the traction assembly is detachably installed on the base plate of the portal frame, and when the test car connected to the other end of the traction assembly is in an emergency, the driving assembly can be started to drive the traction assembly to be separated from the limiting groove in the base plate, so that the test car is rapidly transferred out of the environment bin. Environmental bin damage and personnel casualties caused by test vehicle faults are avoided, and the test safety is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile test equipment, in particular to a pulling and positioning structure for a test vehicle in an environmental chamber which can be easily disassembled and assembled. Background Art

[0002] When a test vehicle undergoes air conditioning, cooling, heating, or thermal balance tests within the chamber, it is driven onto the chamber's rotating hub and then positioned using a pulling mechanism to tug forward and backward to simulate normal vehicle operation. The chamber can provide high and low temperature environments, such as 50°C or -30°C, for vehicle environmental simulation testing.

[0003] The pulling and positioning mechanism of the existing test vehicle is a chain equipped with a tightening mechanism. One end of the chain is connected to a U-shaped hanging ring through a quick-hanging spring buckle. The U-shaped hanging ring is connected to the front towing hook or rear beam of the vehicle. The other end of the chain is fixed to the bottom of the gantry in the environmental chamber. Although it has high stability, when the air-conditioning system or other components of the test vehicle fail to work in an extreme temperature environment, such as smoke, open flame or explosion, the pulling and positioning mechanism cannot be quickly removed from the gantry to release the lock, which further causes the test vehicle to be unable to be transferred in time when a failure occurs in the environmental chamber, which can easily lead to the overall destruction of the environmental chamber and the test vehicle, or cause greater economic losses and casualties. In response to the above problems, there is an urgent need for a pulling and positioning structure that can be detached from the environmental chamber in time when a failure occurs in the environmental chamber, so that the test vehicle can quickly detach from the environmental chamber. Utility Model Content

[0004] One of the purposes of the present utility model is to provide a pulling and positioning structure for a test vehicle in an environmental chamber that is easy to disassemble and assemble, so as to solve the problem in the prior art that when the air-conditioning system or other components of the test vehicle malfunction under extreme temperature conditions, the pulling and positioning mechanism cannot be quickly detached from the gantry, thereby reducing the economic losses and casualties caused by the untimely detachment of the test vehicle.

[0005] In order to achieve the above purpose, the technical solutions adopted by this utility model are as follows:

[0006] A pulling and positioning structure for a test vehicle in an environmental chamber that is easily disassembled and assembled is characterized in that it comprises: a gantry, a quick-release device and a pulling assembly, wherein the gantry is installed in the environmental chamber, and the quick-release device is installed on the gantry; one end of the pulling assembly is detachably installed on the quick-release device, and the other end is installed on the test vehicle; the quick-release device comprises a base plate and a drive assembly, wherein the base plate is installed on the gantry, and the drive assembly is installed on the base plate; a limiting groove is formed on the base plate, one end of the pulling assembly is installed in the limiting groove, and is configured to be driven by the drive assembly to disengage from the limiting groove.

[0007] According to the above technical means, one end of the pulling assembly is detachably mounted on the base plate. When an emergency occurs to the test vehicle connected to the other end of the pulling assembly, the driving assembly can be started to drive the pulling assembly to disengage from the limiting groove on the base plate, so that the test vehicle can be quickly transferred out of the environmental chamber, avoiding damage to the environmental chamber and casualties of staff due to failure of the test vehicle, thereby ensuring the safety of the test.

[0008] Furthermore, the driving assembly includes a servo motor and a first threaded rod, the servo motor is installed on the base plate; one end of the first threaded rod is installed at the output end of the servo motor, and the other end is installed in the limit groove, and the first threaded rod can drive the pulling assembly to move along its length direction so that one end of the pulling assembly is disengaged from the limit groove.

[0009] According to the above technical means, the servo motor has the characteristics of high-precision control and can accurately control the rotation of the first threaded rod; and the servo motor can provide a stable driving force for the first threaded rod, and can stably and continuously drive the pulling assembly to move along its length direction, which is beneficial to improving the stability of the rotation of the first threaded rod.

[0010] Furthermore, the driving assembly also includes a first locking plate and a second locking plate, which are sleeved on the first threaded rod and abut against the inner wall of the limiting groove; the pulling assembly includes a pulling chain and a connecting ring, which is installed at one end of the pulling chain, and the connecting ring is located between the first locking plate and the second locking plate, and the first locking plate and the second locking plate are configured to be able to move along the length direction of the first threaded rod to drive the connecting ring to move.

[0011] According to the above technical means, the connecting ring can serve as a connecting piece between the pulling chain and the base plate, and the first locking plate and the second locking plate limit the connecting ring to ensure that the test vehicle will not disengage from the limiting groove when conducting environmental tests; at the same time, when the test vehicle needs to disengage from the gantry, the first locking plate and the second locking plate can drive the connecting ring to move along the length direction of the first threaded rod to disengage the connecting ring from the limiting groove.

[0012] Furthermore, a quick-release window is formed on the base plate, and the quick-release window is connected to the limiting groove; when the first locking plate and the second locking plate drive the connecting ring to move along the first threaded rod, the connecting ring can be separated from the limiting groove from the quick-release window.

[0013] According to the above technical means, the quick-release window provides a path for the connecting ring to be installed in or detached from the limiting groove, so that the mounting ring can be installed in or detached from the limiting groove through the quick-release window.

[0014] Furthermore, the pulling chain includes a first steel cable, a second steel cable and a telescopic assembly, one end of the first steel cable is installed with the connecting ring, and the other end is installed on the telescopic assembly; one end of the second steel cable is installed on the telescopic assembly, and the other end is installed on the test vehicle; the first steel cable, the second steel cable and the telescopic assembly cooperate with each other to connect the test vehicle to the gantry.

[0015] According to the above technical means, the steel cable has the characteristic of high strength, and the first steel cable and the second steel cable cooperate with each other to firmly mount the test vehicle on the gantry, thereby ensuring the stability of the test vehicle during the test; the telescopic component enables the length of the pulling chain to be flexibly adjusted, further enabling the pulling chain to be applicable to test vehicles of various specifications, and can also adjust the distance between the test vehicle and the gantry according to the test requirements to adapt to various test scenarios and requirements.

[0016] Furthermore, the telescopic assembly includes a fixed seat, a threaded sleeve and a second threaded rod, the fixed seat is installed on the first steel cable, and one end of the threaded sleeve is installed on the fixed seat; one end of the second threaded rod is threadedly connected to the threaded sleeve and can move along the length direction of the threaded sleeve, and the other end is installed on the second steel cable.

[0017] According to the above technical means, the threaded sleeve and the second screw cooperate with each other to adjust the length of the telescopic assembly, and can further adjust the relative positions of the first steel cable and the second steel cable to adapt to different connection requirements; the fixing seat provides a stable installation base for the threaded sleeve, so that the threaded sleeve can be firmly installed on the first steel cable.

[0018] Furthermore, a slot is formed on the fixing seat, and a clamping block is formed on one end of the threaded sleeve, or a clamping block is formed on the fixing seat, and a slot is formed on the threaded sleeve, and the clamping slot and the clamping block cooperate with each other to clamp the threaded sleeve to the fixing seat.

[0019] According to the above technical means, the mutual cooperation between the card slot and the card block can enable the threaded sleeve to be firmly installed on the fixing seat, and the mutual cooperation between the card slot and the card block can enable the threaded sleeve to be easily disassembled from the fixing seat, so that the threaded sleeve can be easily maintained or replaced, thereby improving the efficiency of maintenance and replacement.

[0020] Furthermore, the other end of the second steel cable is provided with a spring buckle; and a hanger is also included, the hanger is installed on the test vehicle, and the spring buckle is installed on the hanger.

[0021] According to the above technical means, the spring buckle and the pendant are universal and can be applied to test vehicles of different specifications and models; the operation of hanging the spring buckle on the pendant is simple, which improves work efficiency.

[0022] Furthermore, the hanger includes a U-shaped hanging ring and a bolt and nut group, and the spring buckle is installed on the U-shaped hanging ring; the U-shaped hanging ring is locked on the test vehicle through the bolt and nut group.

[0023] According to the above technical means, the bolt and nut group can generate a pre-tightening force by screwing, thereby firmly locking the U-shaped hanging ring on the test vehicle, preventing the U-shaped hanging buckle from falling off the test vehicle during the test; and the structure of the U-shaped hanging ring and the bolt and nut group cooperating with each other is simple and easy to disassemble, which reduces the time for maintenance and replacement and improves work efficiency.

[0024] Furthermore, two gantries are provided in the environmental chamber, and each gantry is provided with at least two quick-release devices and the pulling components. The multiple quick-release devices and the multiple pulling components cooperate with each other to pull the test vehicle and position it between the two gantries.

[0025] Through the above-mentioned technical means, two gantries are set up in the environmental chamber, and multiple quick-release devices and multiple pulling components are installed to quickly position and fix the test vehicle, ensure the stability of the test vehicle during the test, and provide a stable installation foundation for the environmental test of the test vehicle.

[0026] The beneficial effects of the present invention are:

[0027] One end of the pulling assembly is detachably mounted on the base plate on the gantry. When an emergency occurs to the test vehicle connected to the other end of the pulling assembly, the driving assembly can be started to drive the pulling assembly out of the limiting groove on the base plate, so that the test vehicle can be quickly transferred out of the environmental chamber, avoiding damage to the environmental chamber and casualties of staff due to failure of the test vehicle, thereby ensuring the safety of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 This is a top view of the pulling and positioning structure of the utility model installed in the environmental chamber;

[0030] Figure 2 This is a side view of the pulling and positioning structure of the utility model installed in the environmental chamber;

[0031] Figure 3 This is a side structural diagram of the quick-release device of the utility model;

[0032] Figure 4 This is a schematic side structural cross-sectional diagram of the quick-release device of the present invention;

[0033] Figure 5 This is a top view of the cross-sectional structure of the utility model connecting ring installed on the quick release device;

[0034] Figure 6 This is a schematic structural diagram of the pulling assembly of the present utility model.

[0035] in,

[0036] 100. Gantry; 200. Quick-release device; 210. Base plate; 211. Limiting groove; 212. Quick-release window; 220. Drive assembly; 221. Servo motor; 222. First threaded rod; 223. First locking plate; 224. Second locking plate; 300. Pulling assembly; 310. Pulling chain; 311. First steel cable; 312. Second steel cable; 313. Telescopic assembly; 3131. Fixing seat; 3132. Threaded sleeve; 3133. Second threaded rod; 314. Spring buckle; 320. Connecting ring; 400. Hanging piece; 410. U-shaped hanging ring; 420. Bolt and nut assembly. DETAILED DESCRIPTION

[0037] The following will describe the embodiments of the present invention with reference to the accompanying drawings and preferred embodiments. The accompanying drawings are for illustrative purposes only and are not to be construed as limiting the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for the purpose of illustrating the present invention and are not intended to limit the scope of protection of the present invention.

[0038] It should be noted that the illustrations provided in the following embodiments are merely schematic illustrations of the basic concept of the present invention. Therefore, the illustrations only show components related to the present invention and are not drawn according to the number, shape, and size of components in actual implementation. In actual implementation, the type, quantity, and proportion of each component may be changed arbitrarily, and the component layout may also be more complex.

[0039] This embodiment provides Figures 1 to 6 The illustrated embodiment shows a pulling and positioning structure for a test vehicle for an environmental chamber that is easily disassembled and assembled, comprising: a gantry 100, a quick-release device 200 and a pulling assembly 300, wherein the gantry 100 is installed in the environmental chamber, and the quick-release device 200 is installed on the gantry 100; one end of the pulling assembly 300 is detachably mounted on the quick-release device 200, and the other end is mounted on the test vehicle; the quick-release device 200 comprises a base plate 210 and a drive assembly 220, wherein the base plate 210 is mounted on the gantry 100, and the drive assembly 220 is mounted on the base plate 210; a limiting groove 211 is formed on the base plate 210, and one end of the pulling assembly 300 is mounted in the limiting groove 211, and is configured to be driven by the drive assembly 220 to disengage from the limiting groove 211.

[0040] During environmental testing of a test vehicle, the vehicle is mounted on baseplate 210 on gantry 100 via a pull assembly 300, ensuring its position within the environmental chamber. If an emergency situation requires the vehicle to quickly exit the chamber, drive assembly 220 swiftly responds by driving pull assembly 300 to quickly detach from baseplate 210, effectively detaching the vehicle from gantry 100 and the chamber. This ensures the chamber is not damaged in the event of an emergency, ensuring the safety of personnel.

[0041] One end of the pulling assembly 300 is detachably mounted on the base plate 210 on the gantry 100. When an emergency occurs to the test vehicle connected to the other end of the pulling assembly 300, the driving assembly 220 can be started to drive the pulling assembly 300 to disengage from the limiting groove 211 on the base plate 210, so that the test vehicle can be quickly transferred out of the environmental chamber, avoiding damage to the environmental chamber and casualties of staff due to failure of the test vehicle, thereby ensuring the safety of the test.

[0042] like Figure 3 and Figure 4 As shown, in this embodiment, the drive assembly 220 includes a servo motor 221 and a first threaded rod 222. The servo motor 221 is mounted on the base plate 210. One end of the first threaded rod 222 is mounted at the output end of the servo motor 221, and the other end is mounted within the limiting groove 211. The first threaded rod 222 is capable of driving the pulling assembly 300 to move along its length, thereby disengaging one end of the pulling assembly 300 from the limiting groove 211. The servo motor 221 has high-precision control characteristics, capable of accurately controlling the rotation of the first threaded rod 222. The servo motor 221 can provide a stable driving force to the first threaded rod 222, stably and continuously driving the pulling assembly 300 to move along its length, which is conducive to improving the stability of the rotation of the first threaded rod 222.

[0043] Preferably, a bearing is provided on the side wall of the limiting groove 211 , and the other end of the first threaded rod 222 is installed in the bearing, so that the first threaded rod 222 can rotate relative to the base plate 210 when driven by the servo motor 221 .

[0044] like Figure 3 and Figure 4 As shown, in this embodiment, the driving assembly 220 also includes a first locking plate 223 and a second locking plate 224, which are sleeved on the first threaded rod 222 and abut against the inner wall of the limiting groove 211; the pulling assembly 300 includes a pulling chain 310 and a connecting ring 320, which is installed at one end of the pulling chain 310, and the connecting ring 320 is located between the first locking plate 223 and the second locking plate 224, and the first locking plate 223 and the second locking plate 224 are configured to be able to move along the length direction of the first threaded rod 222 to drive the connecting ring 320 to move. The connecting ring 320 can serve as a connecting piece between the pulling chain 310 and the base plate 210. The first locking plate 223 and the second locking plate 224 limit the connecting ring 320 to ensure that the test vehicle will not disengage from the limiting groove 211 when conducting environmental tests; at the same time, when the test vehicle needs to disengage from the gantry 100, the first locking plate 223 and the second locking plate 224 can drive the connecting ring 320 to move along the length direction of the first threaded rod 222 to disengage the connecting ring 320 from the limiting groove 211.

[0045] Preferably, the side surface of the limiting groove 211 in contact with the connecting ring 320 is arc-shaped to fit the connecting ring 320, thereby increasing the contact area between the connecting ring 320 and the substrate 210, avoiding stress concentration due to a small contact area that may damage the substrate 210, and preventing the connecting ring 320 from falling off due to damage to the substrate 210.

[0046] like Figure 3 and Figure 4 As shown, in this embodiment, a quick-release window 212 is further formed on the base plate 210 and communicates with the retaining groove 211. When the first locking plate 223 and the second locking plate 224 drive the connecting ring 320 to move along the first threaded rod 222, the connecting ring 320 can be separated from the retaining groove 211 through the quick-release window 212. The quick-release window 212 provides a path for the connecting ring 320 to be installed in or removed from the retaining groove 211, allowing the mounting ring to be installed in or removed from the retaining groove 211 through the quick-release window 212.

[0047] Preferably, the dimension of the quick release window 212 close to the limiting groove 211 is smaller than the dimension of the end away from the limiting groove 211, so that the cross section of the quick release window 212 is a right-angled trapezoid, so that the connecting ring 320 can fall off from the quick release window 212.

[0048] More preferably, threaded holes are formed on the first locking plate 223 and the second locking plate 224, and the first threaded rod 222 passes through the threaded holes of the first locking plate 223 and the second locking plate 224 and is threadedly engaged, so that when the servo motor 221 drives the threaded rod to rotate, the first locking plate 223 and the second locking plate 224 can move along the threaded rod to further drive the connecting ring 320 closer to or away from the quick-release window 212.

[0049] Preferably, the thickness of the first locking plate 223 and the second locking plate 224 is not less than half of the diameter of the connecting ring 320 .

[0050] like Figure 6 As shown, in this embodiment, the traction chain 310 includes a first steel cable 311, a second steel cable 312, and a telescopic assembly 313. The first steel cable 311 has a connecting ring 320 mounted on one end and the other end mounted on the telescopic assembly 313. The second steel cable 312 has one end mounted on the telescopic assembly 313 and the other end mounted on the test vehicle. The first steel cable 311, the second steel cable 312, and the telescopic assembly 313 cooperate to connect the test vehicle to the gantry 100. The steel cables are high-strength. The first steel cable 311 and the second steel cable 312 cooperate to securely mount the test vehicle on the gantry 100, ensuring the stability of the test vehicle during testing. The telescopic assembly 313 allows the length of the traction chain 310 to be flexibly adjusted, further making it suitable for test vehicles of various specifications. The distance between the test vehicle and the gantry 100 can also be adjusted according to test requirements to accommodate various testing scenarios and requirements.

[0051] like Figure 6 As shown, in this embodiment, the telescopic assembly 313 includes a fixed seat 3131, a threaded sleeve 3132, and a second threaded rod 3133. The fixed seat 3131 is mounted on the first steel cable 311, and one end of the threaded sleeve 3132 is mounted on the fixed seat 3131. One end of the second threaded rod 3133 is threadedly connected to the threaded sleeve 3132 and can move along the length of the threaded sleeve 3132, and the other end is mounted on the second steel cable 312. The threaded sleeve 3132 and the second threaded rod cooperate with each other to adjust the length of the telescopic assembly 313, and further adjust the relative position of the first steel cable 311 and the second steel cable 312 to meet different connection requirements. The fixed seat 3131 provides a stable mounting base for the threaded sleeve 3132, allowing the threaded sleeve 3132 to be firmly mounted on the first steel cable 311.

[0052] like Figure 6 As shown, in this embodiment, a clamping groove is formed on the fixing seat 3131, and a clamping block is formed at one end of the threaded sleeve 3132, or a clamping block is formed on the fixing seat 3131 and a clamping groove is formed on the threaded sleeve 3132, and the clamping groove and the clamping block cooperate with each other to clamp the threaded sleeve 3132 to the fixing seat 3131. The clamping groove and the clamping block cooperate with each other to enable the threaded sleeve 3132 to be firmly mounted on the fixing seat 3131, and the clamping groove and the clamping block cooperate with each other to enable the threaded sleeve 3132 to be easily removed from the fixing seat 3131, so that the threaded sleeve 3132 can be easily maintained or replaced, thereby improving the efficiency of maintenance and replacement.

[0053] Preferably, the card slot is T-shaped, and corresponding to the card slot, the card block is also T-shaped.

[0054] More preferably, a fixing seat 3131 is also installed on the second steel cable 312 , and the other end of the second threaded rod 3133 is installed on the fixing seat 3131 on the second steel cable 312 .

[0055] like Figure 6 As shown, in this embodiment, a spring hook 314 is provided at the other end of the second steel cable 312. A hanger 400 is also included, which is mounted on the test vehicle, and the spring hook 314 is mounted on the hanger 400. The spring hook 314 and the hanger 400 are universal and can be used on test vehicles of different specifications and models. Hanging the spring hook 314 on the hanger 400 simplifies operation and improves work efficiency.

[0056] like Figure 6As shown, in this embodiment, the hanger 400 includes a U-shaped hanging ring 410 and a bolt and nut assembly 420. The spring hook 314 is mounted on the U-shaped hanging ring 410. The U-shaped hanging ring 410 is locked to the test vehicle via the bolt and nut assembly 420. The bolt and nut assembly 420 can generate a pre-tightening force by twisting, thereby firmly locking the U-shaped hanging ring 410 to the test vehicle and preventing the U-shaped hanging ring from falling off the test vehicle during testing. The U-shaped hanging ring 410 and the bolt and nut assembly 420 have a simple structure that allows for easy disassembly, reducing maintenance and replacement time and improving work efficiency.

[0057] like Figure 1 and Figure 2 As shown, in this embodiment, two gantries 100 are installed in the environmental chamber. Each gantry 100 is equipped with at least two quick-release devices 200 and a pulling assembly 300. Multiple quick-release devices 200 and multiple pulling assemblies 300 cooperate to pull and position the test vehicle between the two gantries 100. Specifically, the front and rear ends of the test vehicle are respectively connected to at least two pulling assemblies 300. The installation of two gantries 100 in the environmental chamber and the installation of multiple quick-release devices 200 and multiple pulling assemblies 300 enable rapid positioning and securing of the test vehicle, ensuring the stability of the test vehicle during testing and providing a stable installation foundation for environmental testing of the test vehicle.

[0058] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. A person skilled in the art will be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A convenient and disassembleable pulling and positioning structure for a test vehicle in an environmental chamber, characterized in that: include: A gantry (100), a quick-release device (200), and a pulling assembly (300), wherein the gantry (100) is installed in an environmental chamber, and the quick-release device (200) is installed on the gantry (100); one end of the pulling assembly (300) is detachably installed on the quick-release device (200), and the other end is installed on the test vehicle; The quick-release device (200) comprises a base plate (210) and a driving assembly (220), wherein the base plate (210) is mounted on the gantry (100), and the driving assembly (220) is mounted on the base plate (210); a limiting groove (211) is formed on the base plate (210), and one end of the pulling assembly (300) is mounted in the limiting groove (211), and is configured to be driven by the driving assembly (220) to disengage from the limiting groove (211).

2. The convenient disassembly and assembly pulling and positioning structure for the test vehicle of the environmental chamber according to claim 1 is characterized in that: The driving assembly (220) comprises a servo motor (221) and a first threaded rod (222), wherein the servo motor (221) is mounted on the base plate (210); one end of the first threaded rod (222) is mounted on the output end of the servo motor (221), and the other end is mounted in the limiting groove (211), and the first threaded rod (222) is capable of driving the pulling assembly (300) to move along its length direction so that one end of the pulling assembly (300) is disengaged from the limiting groove (211).

3. The convenient disassembly and assembly pulling and positioning structure for the test vehicle of the environmental chamber according to claim 2 is characterized in that: The driving assembly (220) further includes a first locking plate (223) and a second locking plate (224), wherein the first locking plate (223) and the second locking plate (224) are sleeved on the first threaded rod (222) and abut against the inner wall of the limiting groove (211); the pulling assembly (300) includes a pulling chain (310) and a connecting ring (320), wherein the connecting ring (320) is installed at one end of the pulling chain (310), and the connecting ring (320) is located between the first locking plate (223) and the second locking plate (224), and the first locking plate (223) and the second locking plate (224) are configured to be able to move along the length direction of the first threaded rod (222) to drive the connecting ring (320) to move.

4. The conveniently disassembled and assembled environmental chamber test vehicle pulling and positioning structure according to claim 3 is characterized in that: A quick-release window (212) is also formed on the base plate (210), and the quick-release window (212) is connected to the limiting groove (211); when the first locking plate (223) and the second locking plate (224) drive the connecting ring (320) to move along the first threaded rod (222), the connecting ring (320) can be separated from the limiting groove (211) from the quick-release window (212).

5. The conveniently disassembled and assembled environmental chamber test vehicle pulling and positioning structure according to claim 3 is characterized in that: The pulling chain (310) includes a first steel cable (311), a second steel cable (312) and a telescopic assembly (313); one end of the first steel cable (311) is installed on the connecting ring (320), and the other end is installed on the telescopic assembly (313); one end of the second steel cable (312) is installed on the telescopic assembly (313), and the other end is installed on the test vehicle; the first steel cable (311), the second steel cable (312) and the telescopic assembly (313) cooperate with each other to connect the test vehicle to the gantry (100).

6. The conveniently disassembled and assembled environmental chamber test vehicle pulling and positioning structure according to claim 5 is characterized in that: The telescopic assembly (313) includes a fixed seat (3131), a threaded sleeve (3132) and a second threaded rod (3133), wherein the fixed seat (3131) is mounted on the first steel cable (311), and one end of the threaded sleeve (3132) is mounted on the fixed seat (3131); one end of the second threaded rod (3133) is threadedly connected to the threaded sleeve (3132) and can move along the length direction of the threaded sleeve (3132), and the other end is mounted on the second steel cable (312).

7. The conveniently disassembled and assembled environmental chamber test vehicle pulling and positioning structure according to claim 6 is characterized in that: A clamping groove is formed on the fixing seat (3131), and a clamping block is formed on one end of the threaded sleeve (3132), or a clamping block is formed on the fixing seat (3131), and a clamping groove is formed on the threaded sleeve (3132), and the clamping groove and the clamping block cooperate with each other to clamp the threaded sleeve (3132) on the fixing seat (3131).

8. The conveniently disassembled and assembled pulling and positioning structure for a test vehicle in an environmental chamber according to claim 5, characterized in that: The other end of the second steel cable (312) is provided with a spring buckle (314); and the second steel cable (312) further comprises a hanger (400), the hanger (400) is installed on the test vehicle, and the spring buckle (314) is installed on the hanger (400).

9. The conveniently disassembled and assembled pulling and positioning structure for a test vehicle for an environmental chamber according to claim 8, characterized in that: The hanging component (400) comprises a U-shaped hanging ring (410) and a bolt and nut assembly (420); the spring buckle (314) is mounted on the U-shaped hanging ring (410); and the U-shaped hanging ring (410) is locked on the test vehicle via the bolt and nut assembly (420).

10. The conveniently disassembled and assembled pulling and positioning structure for a test vehicle in an environmental chamber according to claim 1, characterized in that: Two gantries (100) are provided in the environmental chamber, and at least two quick-release devices (200) and pulling assemblies (300) are provided on each of the gantries (100). The multiple quick-release devices (200) and the multiple pulling assemblies (300) cooperate with each other to pull and position the test vehicle between the two gantries (100).

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