Anti-rollover device for vehicle ESC test

Abstract

An anti-rollover support for a vehicle ESC test belongs to the technical field of vehicle chassis testing and comprises a support assembly, a first end of the support assembly is connected to the side face of a vehicle crossbeam, and the support assembly extends or retracts relative to the vehicle crossbeam; the auxiliary wheel is rotationally connected to the second end of the support assembly through a rotating assembly so as to change the posture; the auxiliary wheel is in a first posture and a second posture when the support assembly retracts and stretches out, the auxiliary wheel retracts below a vehicle chassis when the auxiliary wheel is in the first posture, and the auxiliary wheel supports the vehicle girder when the auxiliary wheel is in the second posture. The auxiliary wheel changes the posture through rotation of the rotating assembly so as to be matched with the telescopic state of the support assembly, the auxiliary wheel retracts below a vehicle chassis when in the first posture, the auxiliary wheel supports a vehicle girder in a rollover prevention mode when in the second posture, and the auxiliary wheel and the support assembly do not need to be manually disassembled and assembled. And the test time and the test cost are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle chassis testing, in particular to an anti-rollover device for vehicle ESC tests. Background Art

[0002] Vehicle chassis ESC tests are usually mandatory items for chassis safety regulations and tests. The quality of its performance directly affects vehicle driving safety and even vehicle performance. Therefore, the research and development of vehicle chassis should not only meet the requirements of transportation road conditions and scenarios, but also meet the requirements of safety and reliability. At present, there are no strict requirements for the auxiliary wheel brackets and their functions of test vehicles in China, as long as they meet the reliable and normal ESC working conditions.

[0003] In the prior art, the installation of auxiliary wheels is difficult, the equipment is bulky, and pneumatic wrenches are required for frequent disassembly when entering and leaving the site during tests, with manual efforts added. Restricted by site resources, this increases potential safety hazards and the expenditure of human and material resources. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an anti-rollover device for vehicle ESC tests. In the utility model, the auxiliary wheels are retracted under the chassis when not in use, without affecting vehicle driving. When testing is required, they can be opened at any time to support the vehicle body to prevent rollover. Neither the auxiliary wheels nor the brackets need to be manually disassembled and installed, saving test time and test costs.

[0005] The utility model provides the following solutions:

[0006] The utility model describes an anti-rollover device for vehicle ESC tests, including:

[0007] A bracket assembly, with the first end connected to the side of the vehicle frame, and the bracket assembly extending or retracting relative to the vehicle frame;

[0008] An auxiliary wheel, which is rotatably connected to the second end of the bracket assembly through a rotating assembly to change its posture;

[0009] The auxiliary wheel is in a first posture and a second posture respectively when the bracket assembly retracts and extends. When the auxiliary wheel is in the first posture, it is retracted under the vehicle chassis, and when the auxiliary wheel is in the second posture, it supports the vehicle frame.

[0010] Preferably, the bracket assembly includes a front bracket, a telescopic shaft, and a rear bracket;

[0011] The first end of the front bracket, the first end of the telescopic shaft, and the first end of the rear bracket are all rotatably connected to the side of the vehicle frame;

[0012] The second end of the front bracket is slidably connected to the second end of the rear bracket;

[0013] The telescopic shaft is a telescopic structure and is arranged between the front bracket and the rear bracket. The second end of the telescopic shaft is rotatably connected to the middle of the front bracket near the second end.

[0014] Preferably, a chute is arranged at the second end of the rear bracket along the length direction of the rear bracket, and a sliding column that slides in the chute is arranged at the second end of the front bracket.

[0015] Preferably, front bracket pin, telescopic shaft pin and rear bracket pin are respectively arranged at the connection positions of the front bracket, the telescopic shaft and the rear bracket on the side surface of the vehicle frame;

[0016] A front bracket sleeve that is rotatably sleeved on the front bracket pin is arranged at the first end of the front bracket;

[0017] A telescopic shaft sleeve that is rotatably sleeved on the telescopic shaft pin is arranged at the first end of the telescopic shaft;

[0018] A connection hole that is rotatably connected to the rear bracket pin is formed at the first end of the rear bracket.

[0019] Preferably, a front bracket connection block, a telescopic shaft connection block and a rear bracket connection block are respectively arranged at the positions of the front bracket pin, the telescopic shaft pin and the rear bracket pin on the side surface of the vehicle frame;

[0020] The front bracket connection block includes a first front bracket connection block and a second front bracket connection block; the first ends of the first front bracket connection block and the second front bracket connection block are both fixed on the side surface of the vehicle frame, and connection holes of the front bracket are respectively formed at the second ends of the first front bracket connection block and the second front bracket connection block. Both ends of the front bracket pin respectively pass through the connection holes of the front bracket and are fixed by front bracket bolts;

[0021] The telescopic shaft connection block includes a first telescopic shaft connection block, a second telescopic shaft connection block and a third telescopic shaft connection block; the third telescopic shaft connection block is fixed on the side surface of the vehicle frame, the first ends of the first telescopic shaft connection block and the second telescopic shaft connection block are fixed at both ends of the third telescopic shaft connection block, and both ends of the telescopic shaft pin are respectively fixed at the second ends of the first telescopic shaft connection block and the second telescopic shaft connection block;

[0022] The rear support connecting block includes a first rear support connecting block and a second rear support connecting block; the first ends of the first rear support connecting block and the second rear support connecting block are both fixed to the side surface of the vehicle frame, the second ends of the first rear support connecting block and the second rear support connecting block are both provided with rear support connecting holes, and both ends of the rear support pin sequentially pass through the connecting holes and the rear support connecting holes and are fixed by rear support bolts.

[0023] Preferably, rubber washers are arranged between the two ends of the front support sleeve and the front support pin.

[0024] Preferably, a receiving cavity is opened in the middle of the second end of the front support, and a connecting column is arranged in the receiving cavity;

[0025] A hoop is connected to the second end of the telescopic shaft, and the hoop is rotatably connected to the connecting column.

[0026] Preferably, the first end of the rotating assembly is fixed to the end of the second end of the rear support;

[0027] The auxiliary wheel is rotatably connected to the second end of the rotating assembly.

[0028] Preferably, a rotating shell is arranged at the second end of the rotating assembly; a rotating groove is opened on the rotating shell, and a motor, a gear and a belt are arranged inside the rotating shell;

[0029] The belt is sleeved on the rotating shaft of the motor and the central shaft of the gear at the same time;

[0030] One end of the auxiliary wheel passes through the rotating groove and is fixed to the gear, and rotates in the rotating groove.

[0031] Preferably, through holes penetrating both sides are opened on the rotating shell, and the rotating shaft of the motor and the central shaft of the gear are both rotatably connected in the through holes. The utility model has the following advantages compared with the prior art: the support assembly can extend or retract relative to the vehicle frame, the auxiliary wheel changes its posture by rotating in the rotating assembly to cooperate with the telescopic state of the support assembly, the auxiliary wheel retracts under the vehicle chassis when in the first posture, and the auxiliary wheel provides anti-rollover support for the vehicle frame when in the second posture. Neither the auxiliary wheel nor the support assembly needs to be manually disassembled and installed, which saves the test time and test cost, and avoids potential safety hazard accidents caused by the inability of the auxiliary wheel to extend and retract when the test vehicle enters and exits the site. Its verification results meet the road test reliability performance index and the chassis safety index. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0033] Figure 1 Structural schematic diagram of the vehicle ESC test anti-rollover device according to an embodiment of the present invention in the first posture;

[0034] Figure 2 Structural schematic diagram of the vehicle ESC test anti-rollover device according to an embodiment of the present invention in the second posture;

[0035] Figure 3 Structural schematic diagram of the connection between the front bracket and the vehicle frame according to an embodiment of the present invention;

[0036] Figure 4 Structural schematic diagram of the connection between the telescopic shaft and the vehicle frame according to an embodiment of the present invention;

[0037] Figure 5 Structural schematic diagram of the connection between the rear bracket and the vehicle frame according to an embodiment of the present invention;

[0038] Figure 6 Structural schematic diagram of the connection between the rotating shaft and the front bracket according to an embodiment of the present invention;

[0039] Figure 7 Internal structural schematic diagram of the rotating assembly according to an embodiment of the present invention;

[0040] Figure 8 Structural schematic diagram of the rotating shell according to an embodiment of the present invention.

[0041] Wherein: 1 - vehicle frame; 11 - front bracket pin; 12 - telescopic shaft pin; 13 - rear bracket pin; 14 - front bracket connection block; 141 - first front bracket connection block; 142 - second front bracket connection block; 143 - front bracket bolt; 15 - telescopic shaft connection block; 151 - first telescopic shaft connection block; 152 - second telescopic shaft connection block; 153 - third telescopic shaft connection block; 16 - rear bracket connection block; 161 - first rear bracket connection block; 162 - second rear bracket connection block; 163 - rear bracket bolt; 17 - rubber washer;

[0042] 2 - Bracket assembly; 21 - Front bracket; 211 - Slide post; 212 - Front bracket sleeve; 213 - Accommodating cavity; 214 - Connecting post; 22 - Telescopic shaft; 221 - Telescopic shaft sleeve; 222 - Hoop; 23 - Rear bracket; 231 - Slide groove; 233 - Connecting hole

[0043] 3 - Auxiliary wheel;

[0044] 4 - Rotating assembly; 41 - Rotating shell; 42 - Rotating groove; 42 - Motor; 44 - Gear; 45 - Belt; 46 - Through hole. Detailed implementation manners

[0045] In order to make the objectives, technical solutions and advantages of this application clearer, the following will further describe this application in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0046] The terms used in the embodiments of this application are only for the purpose of describing specific embodiments, and are not intended to limit this application. The singular forms "a", "the" and "said" used in the embodiments of this application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. "Plural" generally includes at least two.

[0047] It should be understood that the term "and / or" used herein is only a description of the associated relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the front and rear associated objects.

[0048] It should be understood that although terms such as first, second, and third may be used in the embodiments of this application for description, 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 this application, the first can also be called the second, and similarly, the second can also be called the first.

[0049] Depending on the context, the words "if", "when" as used herein can be interpreted as "when...", "when...", "in response to determining", or "in response to detecting". Similarly, depending on the context, the phrase "if determined" or "if detecting (stated condition or event)" can be interpreted as "when determined", "in response to determining", "when detecting (stated condition or event)", or "in response to detecting (stated condition or event)".

[0050] 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.

[0051] 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.

[0052] See also Figures 1-8 A vehicle ESC test anti-rollover device provided in an embodiment of the present application includes a bracket assembly 2, a first end of which is connected to the side of a vehicle beam 1, and the bracket assembly 2 is extended or retracted relative to the vehicle beam 1; an auxiliary wheel 3, the auxiliary wheel 3 is connected to the second end of the bracket assembly 2 through a rotating assembly 4 to change its posture; the auxiliary wheel 3 is in a first posture and a second posture when the bracket assembly 2 is retracted and extended, respectively, the auxiliary wheel 3 is retracted under the vehicle chassis when it is in the first posture, and supports the vehicle beam 1 when the auxiliary wheel 3 is in the second posture.

[0053] In this embodiment, two groups of the anti-rollover devices are arranged symmetrically on both sides of the vehicle to provide anti-rollover support for the vehicle in two directions.

[0054] The auxiliary wheel 3 changes its posture by rotating the rotating assembly 2 to match the telescopic state of the bracket assembly 2. Specifically, when the vehicle is not being tested, the bracket assembly 2 is in a retracted state, and the auxiliary wheel 3 is in a first posture. In this posture, the auxiliary wheel 3 is located near the middle of the vehicle and is in a flat state. Its lower surface is flush with the lower surface of the vehicle beam and is retracted under the chassis, which does not affect the vehicle's driving. When the vehicle needs to undergo an ESC test, the bracket assembly 2 is in an extended state, and the auxiliary wheel 3 is in a second posture. In this posture, first, the auxiliary wheel 3 is extended to the outside of the vehicle under the drive of the bracket assembly 2, and the distance between the extended auxiliary wheel 3 and the vehicle's own wheel relative to the chassis is consistent, providing a basis for supporting the vehicle's driving; second, the auxiliary wheel 3 in the flat state is turned over by the rotating assembly 3 to a standing state, and its lower surface is kept at a distance of 40-60cm from the ground. When the vehicle turns rapidly and sharply and the body tilts to a certain degree, the auxiliary wheel 3 contacts the ground to support the vehicle and prevent the vehicle from rolling over.

[0055] The anti-rollover device described in this embodiment does not require manual disassembly and installation of the auxiliary wheels and the bracket assembly, which saves test time and test costs, and avoids potential safety hazards and accidents caused by the inability of the auxiliary wheels to retract when the test vehicle enters and exits the site. The verification results meet the road test reliability performance indicators and chassis safety indicators.

[0056] Further, the support assembly 2 includes a front support 21, a telescopic shaft 22, and a rear support 23; the first ends of the front support 21, the telescopic shaft 22, and the rear support 23 are all rotatably connected to the side of the vehicle frame 1; the second end of the front support 21 is slidably connected to the second end of the rear support 23; the telescopic shaft 22 is a telescopic structure and is arranged between the front support 21 and the rear support 23, and the second end of the telescopic shaft 22 is rotatably connected to the middle of the front support 21 near the second end.

[0057] Specifically, the telescopic shaft 22 is a three-section telescopic rod and is connected to the air storage system of the vehicle. The extension or retraction of the telescopic shaft 22 is controlled by air pressure to further control the opening and closing state of the support assembly 2. When the vehicle needs to be tested, the air pressure controls the second end of the telescopic shaft 22 to extend, driving the second end of the front support 21 to slide on the second end of the rear support 23, and at the same time driving the front support 21, the telescopic shaft 22, and the rear support 23 to rotate relative to the vehicle frame 1, so that the support assembly 2 opens and extends relative to the vehicle frame 1, and further drives the auxiliary wheel 3 to extend towards the outside of the vehicle.

[0058] Further, a chute 231 is arranged at the second end of the rear support 23 along the length direction of the rear support 23, and a sliding column 211 that slides in the chute 231 is arranged at the second end of the front support 21.

[0059] Specifically, the rear support 23 is arranged as a long frame shape, including an upper frame, a lower frame, and a bottom frame, and chutes 231 are arranged along the length direction of the upper frame and the lower frame. Both ends of the sliding column 211 pass through the chutes 231 of the upper frame and the lower frame respectively and slide in the chutes 231 to realize the sliding connection between the second end of the front support 21 and the second end of the rear support 23.

[0060] Further, as shown in Figures 3-5 The side of the vehicle frame 1 is respectively provided with a front support pin 11, a telescopic shaft pin 12, and a rear support pin 13 at the connection positions of the front support 21, the telescopic shaft 22, and the rear support 23; a front support sleeve 212 that is rotatably sleeved on the front support pin 11 is arranged at the first end of the front support 21; a telescopic shaft sleeve 221 that is rotatably sleeved on the telescopic shaft pin 12 is arranged at the first end of the telescopic shaft 22; a connection hole 233 that is rotatably connected to the rear support pin 13 is opened at the first end of the rear support 23. Through the above settings, the rotation connection between one end of the front support 21, the first end of the telescopic shaft 22, and the first end of the rear support 23 and the side of the vehicle frame 1 is realized.

[0061] More specifically, front support connection blocks 14, telescopic shaft connection blocks 15, and rear support connection blocks 16 are arranged at the positions of the front support pin 11, the telescopic shaft pin 12, and the rear support pin 13 on the side of the vehicle frame 1 respectively.

[0062] The front support connecting block 14 includes a first front support connecting block 141 and a second front support connecting block 142; the first ends of both the first front support connecting block 141 and the second front support connecting block 142 are fixed to the side of the vehicle frame 1, and front support connection holes are provided at the second ends of both the first front support connecting block 141 and the second front support connecting block 142. Both ends of the front support pin 11 pass through the front support connection holes respectively and are fixed by front support bolts 143.

[0063] The telescopic shaft connecting block 15 includes a first telescopic shaft connecting block 151, a second telescopic shaft connecting block 152 and a third telescopic shaft connecting block 153; the third telescopic shaft connecting block 153 is fixed to the side of the vehicle frame 1, the first ends of both the first telescopic shaft connecting block 151 and the second telescopic shaft connecting block 152 are fixed to both ends of the third telescopic shaft connecting block 153, and both ends of the telescopic shaft pin 12 are fixed to the second ends of the first telescopic shaft connecting block 151 and the second telescopic shaft connecting block 152 respectively.

[0064] The rear support connecting block 16 includes a first rear support connecting block 161 and a second rear support connecting block 162; the first ends of both the first rear support connecting block 161 and the second rear support connecting block 162 are fixed to the side of the vehicle frame 1, rear support connection holes are provided at the second ends of both the first rear support connecting block 161 and the second rear support connecting block 162, and both ends of the rear support pin 13 pass through the connection hole 233 and the rear support connection holes in sequence and are fixed by rear support bolts 163.

[0065] Further, rubber washers 17 are provided between the two ends of the front support sleeve 212 and the front support pin 11. The rubber washers 17 are used to control the vertical movement of the front support sleeve 212 during rotation and reduce wear.

[0066] Further, as shown in Figure 6 a receiving cavity 213 is provided near the middle of the second end of the front support 21, and a connecting column 214 is provided in the receiving cavity 213; a hoop 222 is connected to the second end of the telescopic shaft 22, and the hoop 222 is rotatably connected to the connecting column 214. Through the above settings, the second end of the telescopic shaft 22 is rotatably connected to the front support 21.

[0067] Further, as shown in Figures 1-2 , Figures 7-8 the first end of the rotating assembly 4 is fixed to the end of the second end of the rear support 23; the auxiliary wheel 3 is rotatably connected to the second end of the rotating assembly 4.

[0068] A rotating shell 41 is provided at the second end of the rotating assembly 4; a rotating slot 42 is provided on the rotating shell 41, and a motor 43, a gear 44 and a belt 45 are provided inside the rotating shell 41; the belt 45 is simultaneously sleeved on the rotating shaft of the motor 43 and the central axis of the gear 44; one end of the auxiliary wheel 3 passes through the rotating slot 42 and is fixed on the gear 44, and rotates in the rotating slot 42.

[0069] When the shaft of the motor 43 rotates, the gear 44 is driven to rotate through the belt 45, thereby driving the auxiliary wheel 3 fixed on the gear 44 to flip in the rotating groove 42, thereby changing the posture of the auxiliary wheel 3. At the same time, the two ends of the rotating groove 42 have a limiting effect on the auxiliary wheel 3.

[0070] Furthermore, the rotating shell 41 is provided with through holes 46 that penetrate through both sides, and the rotating shaft of the motor 43 and the central shaft of the gear 44 are both rotatably connected in the through holes 46. The working process of the vehicle ESC test anti-rollover device described in this embodiment is as follows: when the vehicle needs to be tested for ESC, the telescopic shaft 22 is controlled to extend through the vehicle's gas storage system to open the bracket assembly 2, and at the same time, the motor 43 is controlled to drive the auxiliary wheel 3 to flip to the second posture. During the test, when the vehicle turns rapidly and sharply and the body tilts to a certain degree, the auxiliary wheel 3 contacts the ground to support the vehicle and prevent the vehicle from rolling over. After the test is completed, the vehicle's gas storage system controls the telescopic shaft 22 to retract, and the bracket assembly 2 is closed. At the same time, the motor 43 is controlled to drive the auxiliary wheel 3 to flip to the first posture and shrink under the chassis.

[0071] In summary, the utility model adopts the retractable and foldable function on the basis of the traditional auxiliary wheel bracket. The auxiliary wheel can be folded and retracted under the vehicle through the remote control motor. The auxiliary wheel and bracket assembly do not need to be manually disassembled and installed, which saves test time and test costs, and avoids potential safety hazards such as the inability of the auxiliary wheel to retract when the test vehicle enters and exits the site. The verification results meet the road test reliability performance indicators and chassis safety indicators.

[0072] 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.

[0073] 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 vehicle ESC test anti-rollover device, characterized in that: include: A bracket assembly (2), a first end of which is connected to a side surface of a vehicle beam (1), and the bracket assembly (2) is extended or retracted relative to the vehicle beam (1); An auxiliary wheel (3), wherein the auxiliary wheel (3) is rotatably connected to the second end of the support assembly (2) through a rotating assembly (4) to change its posture; The auxiliary wheel (3) is in a first posture and a second posture respectively when the support assembly (2) is retracted and extended; the auxiliary wheel (3) is retracted under the vehicle chassis when in the first posture; and supports the vehicle beam (1) when in the second posture.

2. The vehicle ESC test anti-rollover device according to claim 1, characterized in that: The support assembly (2) comprises a front support (21), a telescopic shaft (22) and a rear support (23); The first end of the front bracket (21), the first end of the telescopic shaft (22) and the first end of the rear bracket (23) are all rotatably connected to the side of the vehicle beam (1); The second end of the front bracket (21) is slidably connected to the second end of the rear bracket (23); The telescopic shaft (22) is a telescopic structure, and is arranged between the front bracket (21) and the rear bracket (23); the second end of the telescopic shaft (22) is rotatably connected to the middle part of the front bracket (21) near the second end.

3. The vehicle ESC test anti-rollover device according to claim 2, characterized in that: A slide groove (231) is provided at the second end of the rear bracket (23) along the length direction of the rear bracket (23), and a slide column (211) is provided at the second end of the front bracket (21) for sliding in the slide groove (231).

4. The vehicle ESC test anti-rollover device according to claim 2, characterized in that: A front bracket pin (11), a telescopic shaft pin (12) and a rear bracket pin (13) are respectively provided on the side of the vehicle beam (1) at the connection points of the front bracket (21), the telescopic shaft (22) and the rear bracket (23); A front bracket sleeve (212) is provided at the first end of the front bracket (21) and is rotatably sleeved on the front bracket pin (11); A telescopic shaft sleeve (221) is provided at the first end of the telescopic shaft (22) and is rotatably sleeved on the telescopic shaft pin (12); The first end of the rear bracket (23) is provided with a connection hole (233) which is rotatably connected to the rear bracket pin (13).

5. The vehicle ESC test anti-rollover device according to claim 4, characterized in that: A front bracket connecting block (14), a telescopic shaft connecting block (15) and a rear bracket connecting block (16) are respectively arranged on the side of the vehicle beam (1) at the positions of the front bracket column pin (11), the telescopic shaft column pin (12) and the rear bracket column pin (13); The front bracket connecting block (14) comprises a first front bracket connecting block (141) and a second front bracket connecting block (142); the first end of the first front bracket connecting block (141) and the first end of the second front bracket connecting block (142) are both fixed to the side of the vehicle beam (1), the second end of the first front bracket connecting block (141) and the second end of the second front bracket connecting block (142) are both provided with front bracket connecting holes, and the two ends of the front bracket column pin (11) respectively pass through the front bracket connecting holes and are fixed by front bracket bolts (143); The telescopic shaft connection block (15) comprises a first telescopic shaft connection block (151), a second telescopic shaft connection block (152) and a third telescopic shaft connection block (153); the third telescopic shaft connection block (153) is fixed to the side of the vehicle beam (1), the first end of the first telescopic shaft connection block (151) and the first end of the second telescopic shaft connection block (152) are fixed to the two ends of the third telescopic shaft connection block (153), and the two ends of the telescopic shaft column pin (12) are respectively fixed to the second end of the first telescopic shaft connection block (151) and the second end of the second telescopic shaft connection block (152); The rear bracket connecting block (16) comprises a first rear bracket connecting block (161) and a second rear bracket connecting block (162); the first end of the first rear bracket connecting block (161) and the first end of the second rear bracket connecting block (162) are both fixed to the side of the vehicle beam (1), the second end of the first rear bracket connecting block (161) and the second end of the second rear bracket connecting block (162) are both provided with rear bracket connecting holes, and the two ends of the rear bracket column pin (13) respectively pass through the connecting hole (233) and the rear bracket connecting hole in sequence and are then fixed by rear bracket bolts (163).

6. The vehicle ESC test anti-rollover device according to claim 4, characterized in that: Rubber washers (17) are arranged between the ends of the front support sleeve (212) and the front support column pin (11).

7. The vehicle ESC test anti-rollover device according to claim 2, characterized in that: The front bracket (21) is provided with a receiving cavity (213) near the middle of the second end, and a connecting column (214) is arranged in the receiving cavity (213); The second end of the telescopic shaft (22) is connected to a clamp (222), and the clamp (222) is rotatably connected to the connecting column (214).

8. The vehicle ESC test anti-rollover device according to claim 2, characterized in that: The first end of the rotating assembly (4) is fixed to the second end of the rear bracket (23); The auxiliary wheel (3) is rotatably connected to the second end of the rotating assembly (4).

9. The vehicle ESC test anti-rollover device according to claim 8, characterized in that: A rotating shell (41) is disposed at the second end of the rotating assembly (4); a rotating groove (42) is provided on the rotating shell (41); and a motor (43), a gear (44) and a belt (45) are disposed inside the rotating shell (41); The belt (45) is simultaneously sleeved on the rotating shaft of the motor (43) and the central shaft of the gear (44); One end of the auxiliary wheel (3) passes through the rotation groove (42) and is fixed on the gear (44), and rotates in the rotation groove (42).

10. The vehicle ESC test anti-rollover device according to claim 9, characterized in that: The rotating shell (41) is provided with through holes (46) penetrating through two sides, and the rotating shaft of the motor (43) and the central axis of the gear (44) are both rotatably connected in the through holes (46).

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