Rescue trailer support point buffer mechanism

Abstract

The application provides a rescue trailer supporting point supporting and buffering mechanism, which comprises a fixed frame, which can be fixedly installed on a supporting arm, thereby ensuring stability. A first elastic supporting and loading assembly is arranged in the fixed frame, which can support and fix the steering wheels of a rescued vehicle through a first lifting part. The elastic buffering effect of the first elastic supporting and loading assembly can effectively reduce the impact of vibration or inertial force on the binding belt, thereby prolonging the service life of the binding belt and ensuring the safety of the trailer process, and the application has high practicability. The rescue trailer supporting point supporting and buffering mechanism can effectively reduce the impact of vibration or inertial force on the binding belt, thereby prolonging the service life of the binding belt and ensuring the safety of the trailer process, and the application has high practicability.

Description

Technical Field

[0001] This invention belongs to the field of rescue trailer technology, specifically relating to a rescue trailer support and buffer mechanism. Background Technology

[0002] When a vehicle is unable to move due to a malfunction or accident, a tow truck is usually needed to rescue the disabled or damaged vehicle (the vehicle being rescued). A tow truck can pull the vehicle to a repair location. For larger or heavier vehicles, the tow truck may not be able to lift them entirely; typically, it will lift them by the front guide wheels.

[0003] In existing technology, rescue trailers typically have an extendable tow arm at the rear. A winch on the vehicle body pulls the vehicle to be rescued until the steering wheel contacts the tow arm, and then a special strap is used to secure the steering wheel to the tow arm. However, during the journey, rescue trailers experience bumps, acceleration, and braking, inevitably generating vibrations and inertia. The tension of the straps securing the steering wheel to the tow arm will undoubtedly fluctuate constantly. For heavier vehicles being rescued, the impact on the straps is greater, shortening their lifespan. Furthermore, driving on rough roads can cause the straps to break. Summary of the Invention

[0004] This invention provides a support and buffer mechanism for a rescue trailer, which aims to solve the problem of poor practicality of existing rescue trailers due to their inability to withstand vibration and the impact of vibration on the straps.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: to provide a rescue trailer support and buffer mechanism, comprising:

[0006] The bracket has two fixing frames, which are spaced apart on the bracket along the width direction of the bracket; each fixing frame has a first mounting cavity with an open top.

[0007] Two first elastic support components are provided, and the two first elastic support components are arranged one-to-one with the two fixed frames; each first elastic support component is installed in the corresponding first mounting cavity, and each first elastic support component has a first lifting part extending out of the corresponding first mounting cavity opening; the first lifting part is used to support and fix the steering wheel of the rescued vehicle.

[0008] In one possible implementation, the rescue trailer support and buffer mechanism further includes:

[0009] The slide rail is provided in two, which are spaced apart along the width direction of the support arm and correspond one-to-one with the two fixing frames; each slide rail has a limiting slide cavity arranged along the length direction of the support arm.

[0010] The system includes two movable frames, which are slidably disposed in the two limiting cavities respectively; each movable frame has a second mounting cavity with an open top.

[0011] The second elastic support assembly is provided in two parts, and the two second elastic support assemblies are arranged one-to-one with the two movable frames; each second elastic support assembly is installed in the corresponding second mounting cavity, and each second elastic support assembly has a second lifting part extending out of the opening of the second mounting cavity; the second lifting part is used to support and fix the other steering wheels of the rescued vehicle;

[0012] The drive structure is fixed on the support arm and connected to the two movable frames, and is used to drive each of the movable frames to move along the length direction of the support arm.

[0013] In one possible implementation, the driving structure includes:

[0014] The fixed crossbeam is fixed to the support arm along the width direction of the support arm;

[0015] The movable crossbeam is set along the width direction of the support arm, and its two ends are respectively connected to the two movable frames;

[0016] The telescopic structure is provided in multiple ways, and each telescopic structure is spaced apart along the width direction of the support arm. Each telescopic structure is fixed on the fixed crossbeam, and its other end is connected to the movable crossbeam.

[0017] In one possible implementation, the second elastic support component has the same structure as the first elastic support component.

[0018] In one possible implementation, each of the movable frames is provided with a plurality of movable plates on the outer wall surface facing the fixed frame; each of the movable plates is arranged in a vertical direction and its top end is flush with the top surface of the movable frame; each of the movable plates is spaced apart along the width direction of the support arm, and an insertion space is formed between any two adjacent movable plates.

[0019] The fixed frame has multiple fixing plates on its outer wall facing the movable frame. Each fixing plate is arranged vertically and its top is flush with the top surface of the movable frame. Each fixing plate extends into its respective insertion space.

[0020] In one possible implementation, each of the first resilient support components includes:

[0021] A support base is disposed in the first mounting cavity, and the top of the support base is the first lifting part; along the length direction of the support arm, the bottom of both sides of the support base are provided with a first inclined surface;

[0022] A vertical buffer structure is disposed at the bottom of the first mounting cavity and connected to the support seat, for buffering the impact from the support seat in the vertical direction;

[0023] Two lateral buffer structures are provided, which are respectively arranged on both sides of the support seat along the length direction of the support arm and respectively correspond to the two first inclined surfaces. The two lateral buffer structures are used to buffer the impact from the support seat in the length direction of the support arm.

[0024] In one possible implementation, the vertical buffer structure includes:

[0025] Two rotating cylinders are provided, which are spaced apart along the length of the support arm. Both rotating cylinders are rotatably mounted at the bottom of the fixed frame, and their rotation axes are set along the width of the support arm. Each rotating cylinder is provided with a through sliding hole, and the axis of the sliding hole is set perpendicular to the rotation axis of the rotating cylinder.

[0026] Two support slide rods are provided, each corresponding to one of the two rotating cylinders; the top end of each support slide rod is rotatably connected to the bearing seat, and the rotation direction is set along the width direction of the support arm; the bottom end of each support slide rod extends out after passing through the sliding hole of the corresponding rotating cylinder.

[0027] Two fixing nuts are provided, and each fixing nut is threadedly connected to the protruding end of each supporting slide rod;

[0028] Two vertical springs are provided, each of which is sleeved on the respective support slide rod; one end of each vertical spring abuts against the bearing seat, and the other end abuts against the corresponding rotating cylinder.

[0029] In one possible implementation, each of the lateral buffer structures includes:

[0030] The slider is slidably disposed in the first mounting cavity along the length of the support arm, and has a second inclined surface at the end near the bearing seat that is adapted to the first inclined surface.

[0031] The guide post is provided in multiple ways, and each guide post is arranged at intervals along the vertical direction and is arranged along the length direction of the support arm; one end of each guide post is fixedly connected to the slider, and the other end is slidably connected to the guide hole provided on the side wall of the fixed frame;

[0032] Multiple transverse springs are provided, each transverse spring is respectively sleeved on each of the guide posts, one end of each transverse spring abuts against the slider, and the other end abuts against the inner wall surface of the first mounting cavity.

[0033] In one possible implementation, a plurality of rollers that can roll into contact with the first inclined surface are spaced apart on the second inclined surface, and the rotation axis of each roller is set along the width direction of the support arm.

[0034] In this implementation, the fixed frame ensures a secure installation on the towing arm, thereby guaranteeing stability. The first elastic support component, located within the fixed frame, supports and secures the steering wheels of the vehicle being rescued via the first lifting part. The elastic cushioning effect of the first elastic support component effectively reduces the impact of vibration or inertial forces on the strapping, thus extending the service life of the strapping and ensuring safety during towing, making it highly practical. Attached Figure Description

[0035] Figure 1 This is a schematic diagram showing the positional relationship between the rescue trailer arm, where the rescue trailer support and buffer mechanism is located, and the rescued vehicle, as provided in an embodiment of the present invention.

[0036] Figure 2 A top view of the support and buffer mechanism for the rescue trailer provided in an embodiment of the present invention (with a support arm).

[0037] Figure 3 for Figure 2 The diagram shows an enlarged view of point A of the support and buffer mechanism for the rescue trailer.

[0038] Figure 4 for Figure 3 The diagram shows a BB-direction cross-sectional view of the support and buffer mechanism for the rescue trailer.

[0039] Explanation of reference numerals in the attached figures:

[0040] 10. Fixing frame; 11. First mounting cavity; 12. Fixing plate;

[0041] 20. First elastic support assembly; 21. Bearing seat; 211. First inclined plane; 22. Vertical buffer structure; 221. Rotary cylinder; 222. Supporting slide rod; 223. Fixing nut; 224. Vertical spring; 23. Lateral buffer structure; 231. Slider; 232. Guide post; 233. Lateral spring; 234. Second inclined plane; 235. Roller;

[0042] 30. Slide rail;

[0043] 40. Moving frame; 41. Moving plate;

[0044] 50. Second elastic support assembly;

[0045] 60. Drive structure; 61. Fixed crossbeam; 62. Moving crossbeam; 63. Telescopic structure;

[0046] 70. Support arm;

[0047] 80. The rescued vehicle;

[0048] 90. Rescue tow truck. Detailed Implementation

[0049] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0050] Please refer to the following: Figure 1 and Figure 2 The following describes the towing point support and buffer mechanism for the rescue trailer 90 provided by the present invention. The towing point support and buffer mechanism for the rescue trailer 90 includes a fixed frame 10 and a first elastic support assembly 20. Two fixed frames 10 are provided, spaced apart along the width direction of the support arm 70. Each fixed frame 10 has a first mounting cavity 11 with an open top. Two first elastic support assemblies 20 are provided, corresponding one-to-one with the two fixed frames 10. Each first elastic support assembly 20 is installed in a corresponding first mounting cavity 11, and each first elastic support assembly 20 has a first lifting portion extending out of the opening of the corresponding first mounting cavity 11. The first lifting portion can support and secure the steering wheels of the rescued vehicle 80.

[0051] Compared with the prior art, the towing point support and buffer mechanism of the rescue trailer 90 provided in this embodiment ensures stability by fixing the frame 10 to the towing arm 70. The first elastic support component 20, located within the frame 10, supports and secures the steering wheels of the rescued vehicle 80 via the first lifting part. The elastic buffering effect of the first elastic support component 20 effectively reduces the impact of vibration or inertial forces on the strapping, thereby extending the service life of the strapping and ensuring safety during towing. It is highly practical.

[0052] In this embodiment, for ease of further understanding, the binding strap can still be used on the first lifting part. When the binding strap is subjected to impact, it is prone to breakage at the connection points, such as the buckle or the connection between the binding strap and the first lifting part. Therefore, for towing heavy vehicles, the binding straps used are larger, with a relatively complex structure and higher cost.

[0053] In some embodiments, see Figure 2 The rescue trailer 90's support and buffer mechanism also includes slide rails 30, movable frames 40, second elastic support components 50, and a drive structure 60. Two slide rails 30 are provided, spaced apart along the width of the support arm 70 and corresponding one-to-one with two fixed frames 10. Each slide rail 30 has a limiting cavity arranged along the length of the support arm 70. Two movable frames 40 are provided, slidably disposed within the two limiting cavities. Each movable frame 40 has a second mounting cavity with an open top. Two second elastic support components 50 are provided, corresponding one-to-one with the two movable frames 40. Each second elastic support component 50 is installed in a corresponding second mounting cavity, and each second elastic support component 50 has a second lifting portion extending out of the opening of the second mounting cavity. The second lifting portion can support and secure the other steering wheels of the rescued vehicle 80. The drive structure 60 is fixed on the support arm 70 and connected to the two movable frames 40, and can drive each movable frame 40 to move along the length of the support arm 70.

[0054] For rescued vehicles 80 with significant weight (tonnage), the steering wheels are typically configured with four wheels, two at the front and two at the rear. Therefore, the movable frame 40 and the second elastic support assembly 50 ensure the lifting and securing of the other two steering wheels, thus working together with the fixed frame 10 and the first elastic support assembly 20 to support and secure all four steering wheels. Since the wheelbases of the front and rear sets of steering wheels differ for different rescued vehicles 80, the drive structure 60 can drive the two movable frames 40 to slide within two limiting cavities, thereby adjusting the distance between the movable frames 40 and the fixed frame 10 to accommodate different wheelbases.

[0055] In addition, the elastic cushioning effect of the second elastic support component 50 can effectively reduce the impact of vibration or inertial force on the strapping, thereby extending the service life of the strapping and ensuring the safety of the towing process, making it highly practical.

[0056] In this embodiment, each guide rail can ensure two spaced upright plates, and the top of each upright plate has a folded edge facing the other upright plate. The two upright plates and the support arm 70 enclose a limiting slide cavity.

[0057] In some embodiments, the driving structure 60 described above may adopt the following... Figure 2 The structure shown. See also Figure 2The drive structure 60 includes a fixed crossbeam 61, a movable crossbeam 62, and a telescopic structure 63. The fixed crossbeam 61 is fixedly mounted on the support arm 70 along its width direction. The movable crossbeam 62 is arranged along the width direction of the support arm 70, and its two ends are respectively connected to two movable frames 40. Multiple telescopic structures 63 are provided, and each telescopic structure 63 is spaced apart along the width direction of the support arm 70. Each telescopic structure 63 is fixed on the fixed crossbeam 61, and its other end is connected to the movable crossbeam 62.

[0058] The telescopic structure 63 drives the moving crossbeam 62 to move, which ensures the movement of the two moving frames 40, thereby ensuring that it can adapt to the changes in the wheelbase of different rescued vehicles 80. The telescopic structure 63 can be a hydraulic cylinder.

[0059] In some embodiments, the second elastic support assembly 50 and the first elastic support assembly 20 may be adopted as follows: Figure 2 The structure shown. See also Figure 2 The second elastic support component 50 has the same structure as the first elastic support component 20, which facilitates its manufacture.

[0060] It should be noted that the structures of the fixed frame 10 and the movable frame 40 can also be set to be the same. Correspondingly, the size of the sliding cavity can be adaptively set according to the structure of the movable frame 40. See [reference needed]. Figure 4 The first mounting cavity 11 and the second mounting cavity are the same.

[0061] In some embodiments, the movable frame 40 described above can be as follows: Figures 2 to 3 The structure shown. See also Figures 2 to 3 Each movable frame 40 has multiple movable plates 41 on its outer wall facing the fixed frame 10. Each movable plate 41 is arranged vertically and its top is flush with the top surface of the movable frame 40. The movable plates 41 are spaced apart along the width direction of the support arm 70, and an insertion space is formed between any two adjacent movable plates 41.

[0062] Multiple fixing plates 12 are provided on the outer wall surface of the fixed frame 10 facing the movable frame 40. Each fixing plate 12 is arranged vertically and its top is flush with the top surface of the movable frame 40. Each fixing plate 12 extends into its respective insertion space.

[0063] The installation of the fixed frame 10 and the movable frame 40 will cause the support arm 70 to protrude, and a recess will be formed between the two. The movable plate 41 and the fixed plate 12 are staggered to compensate for the recess between them, thereby ensuring that the rescued vehicle 80 moves smoothly to each steering wheel and each first lifting part and each second lifting part.

[0064] In some embodiments, the first elastic support component 20 described above may employ, as follows: Figure 2 The structure shown. See also Figure 2 Each first elastic support assembly 20 includes a support base 21, a vertical buffer structure 22, and a horizontal buffer structure 23. The support base 21 is disposed in the first mounting cavity 11, and the top of the support base 21 is a first lifting part. Along the length direction of the support arm 70, the bottom of both sides of the support base 21 is provided with a first inclined surface 211. The vertical buffer structure 22 is disposed at the bottom of the first mounting cavity 11 and connected to the support base 21, and can buffer the impact from the support base 21 in the vertical direction. There are two horizontal buffer structures 23, which are respectively disposed on both sides of the support base 21 along the length direction of the support arm 70 and correspond to the two first inclined surfaces 211 respectively. The two horizontal buffer structures 23 can buffer the impact from the support base 21 in the length direction of the support arm 70.

[0065] Supported by the vertical buffer structure 22, the bearing seat 21 can withstand vertical pressure changes and vibrations. The first inclined surfaces 211 at both ends of the bearing seat 21 correspond to the transverse buffer structures 23, which, supported by the two transverse buffer structures 23, can withstand pressure changes and vibrations along the length of the support arm 70. Furthermore, this structure ensures sufficient elastic support within a limited space, has a high load-bearing capacity, and can accommodate large-tonnage rescue vehicles 80.

[0066] After the steering wheels of the rescued vehicle 80 move onto the support seat 21, the support seat 21 will be subjected to pressure and displace downwards to a certain extent. At this time, part of the pressure will be transferred to the vertical buffer structure 22, and another part of the pressure will be transferred to the two lateral buffer structures 23 through the first inclined surface 211. When pressure changes and vibrations occur, the vertical buffer structure and the lateral buffer structure 23 work simultaneously to reduce the vibration force. This can reduce the impact force of the steering wheels of the rescued vehicle 80 on the strapping, thus increasing safety and ensuring the protection of the strapping.

[0067] In some embodiments, the vertical buffer structure 22 described above can be adopted as follows: Figure 4 The structure shown. See also Figure 4 The vertical buffer structure 22 includes a rotating cylinder 221, a supporting slide rod 222, a fixing nut 223, and a vertical spring 224.

[0068] Two rotating cylinders 221 are provided, spaced apart along the length of the support arm 70. Both rotating cylinders 221 are rotatably mounted at the bottom of the fixed frame 10, with their rotation axes along the width of the support arm 70. Each rotating cylinder 221 has a through-hole, with the axis of the hole perpendicular to the rotation axis of the rotating cylinder 221. Two supporting slide rods 222 are provided, each corresponding to one of the two rotating cylinders 221. The top of each supporting slide rod 222 is rotatably connected to the bearing seat 21, with its rotation direction along the width of the support arm 70. The bottom end of each supporting slide rod 222 extends out through the corresponding rotating cylinder 221's sliding hole. Two fixing nuts 223 are provided, each threadedly connected to the extended end of each supporting slide rod 222. Two vertical springs 224 are provided, each sleeved on each supporting slide rod 222. One end of each vertical spring 224 abuts against the support seat 21, and the other end abuts against the corresponding rotating cylinder 221.

[0069] First, the bottom end of each support slide rod 222 is connected to a fixing nut 223, which prevents the support slide rod 222 from disengaging from the sliding hole, thus ensuring the height of the top end face of the bearing seat 21 can be adjusted. Each vertical spring 224 can support the bearing seat 21 vertically and provide elasticity to resist pressure and vibration, ensuring a buffering effect. The movement of the rescue trailer 90 involves acceleration and deceleration, at which time the traveling wheels will exert a force on the bearing part in the direction of travel or the opposite direction. The two rotating cylinders 221, the two support slide rods 222, and the bearing seat 21 form a deformable four-bar linkage support structure. This structure ensures that the bearing seat 21 can pitch and tilt, thus effectively buffering the forces in both the front and rear directions, enhancing its buffering effect.

[0070] Since the support seat 21 has a certain width, when the width is large, the number of rotating cylinders 221 and supporting slide bars 222 can be increased in the width direction of the support arm 70. At the same time, a corresponding number of vertical springs 224 and fixing nuts 223 are set to further increase the support force to adapt to the rescue of large-tonnage vehicles.

[0071] The bottom end of the fixed frame 10 needs to have a notch, and a transition part for the rotating cylinder 221 to rotate and connect. Additionally, the bottom end of the support base 21 needs to have a rotating hole for the support slide rod 222 to rotate and connect. These two structural details are adaptable to those skilled in the art and will not be elaborated upon here.

[0072] In some embodiments, the lateral buffer structure 23 described above can be adopted as follows: Figure 4 The structure shown. See also Figure 4Each transverse buffer structure 23 includes a slider 231, a guide post 232, and a transverse spring 233. The slider 231 is slidably disposed in the first mounting cavity 11 along the length direction of the support arm 70, and has a second inclined surface 234 adapted to the first inclined surface 211 at one end near the bearing seat 21. Multiple guide posts 232 are provided, and each guide post 232 is spaced apart along the vertical direction and is also arranged along the length direction of the support arm 70. One end of each guide post 232 is fixedly connected to the slider 231, and the other end is slidably connected to a guide hole provided on the side wall of the fixed frame 10. Multiple transverse springs 233 are provided, and each transverse spring 233 is respectively sleeved on each guide post 232. One end of each transverse spring 233 abuts against the slider 231, and the other end abuts against the inner wall surface of the first mounting cavity 11.

[0073] One end of the slider 231 is provided with a second inclined surface 234, which can be adapted to the first inclined surface 211. This ensures that the pressure of the support seat 21 is converted into a thrust along the length of the support arm 70. This structure ensures that the support arm 70 provides auxiliary support to the support seat 21 along its length. In addition, the guide post 232 guides the slider 231, while the transverse spring 233 ensures that the slider 231 has a continuous tendency to move towards the support seat 21. This ensures that the first inclined surface 211 is continuously adapted to the second inclined surface 234, thereby ensuring that the support seat 21 has a large reverse support force and a good buffering effect.

[0074] In some embodiments, the slider 231 described above can be as follows: Figure 4 The structure shown. See also Figure 4 Multiple rollers 235 are spaced apart on the second inclined surface 234, which can roll in contact with the first inclined surface 211. Each roller 235 is spaced apart along the extension direction of the second inclined surface 234, and the rotation axis of each roller 235 is arranged along the width direction of the support arm 70. Each roller 235 ensures that the first inclined surface 211 and the second inclined surface 234 are in rolling contact, thereby reducing friction between them and reducing wear.

[0075] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rescue trailer support cushioning mechanism, characterized by, The utility model relates to a vehicle rescue device, including: Fixed frame is equipped with two, two fixed frame interval along the width direction of support arm is arranged on support arm, each fixed frame has the first installation cavity of top open, First elastic support component is equipped with two, two first elastic support component with two fixed frame one -to -one arrangement, each first elastic support component is installed in the first installation cavity, each first elastic support component has the first lifting part of corresponding first installation cavity open, the first lifting part is used for supporting and fixing the steering wheel of vehicle to be rescued, each first elastic support component includes bearing seat, vertical buffer structure and horizontal buffer structure, bearing seat is arranged in first installation cavity, the top end of bearing seat is first lifting part, along the length direction of support arm, both sides bottom of bearing seat are equipped with first inclined surface part, vertical buffer structure is arranged in the bottom of first installation cavity, and is connected with bearing seat, is used for buffering the impact from bearing seat in vertical direction, horizontal buffer structure is equipped with two, two horizontal buffer structures are respectively arranged in both sides of bearing seat along the length direction of support arm, and respectively with two first inclined surface corresponds, two horizontal buffer structures are used for buffering the impact from bearing seat in the length direction of support arm, Slide rail is equipped with two, two slide rail interval along the width direction of support arm is arranged, and with two fixed frame one -to -one, each slide rail has the limiting slide cavity along the length direction of support arm, Moving frame is equipped with two, two moving frame is slidably arranged in two limiting slide cavities, each moving frame has the second installation cavity of top open, Second elastic support component is equipped with two, two second elastic support component with two moving frame one -to -one arrangement, each second elastic support component is installed in corresponding second installation cavity, each second elastic support component has the second lifting part of second installation cavity open, and the second lifting part is used for supporting and fixing other steering wheel of vehicle to be rescued, Driving structure is fixed on support arm, and is connected with two moving frame, is used for driving each moving frame along the length direction of support arm moves.

2. The rescue trailer wheel support cushioning mechanism of claim 1, wherein, The driving structure includes: Fixed crossbeam is fixed on support arm along the width direction of support arm, Moving crossbeam is arranged along the width direction of support arm, and both ends are connected with two moving frame respectively, Multiple telescopic structures are arranged along the width direction of support arm, each telescopic structure is fixed on the fixed crossbeam, and the other end is connected with the moving crossbeam.

3. The rescue trailer wheel well support cushioning mechanism of claim 1, wherein, The second elastic support component and the first elastic support component are the same structure.

4. The rescue trailer wheel well support cushioning mechanism of claim 1, wherein, Each moving frame is provided with multiple moving plates on the outer wall surface of the fixed frame, each moving plate is arranged along the vertical direction, and the top end is flush with the top surface of the moving frame, each moving plate is arranged along the width direction of the support arm, and the insertion space is formed between any two adjacent moving plates. The fixed frame is provided with a plurality of fixed plates on the outer wall surface thereof facing the moving frame, each of the fixed plates is arranged along the vertical direction and the top end is flush with the top surface of the moving frame; each of the fixed plates extends into the corresponding insertion space.

5. The rescue trailer wheel well support cushioning mechanism of claim 1, wherein, The vertical buffering structure comprises: The rotating drum is provided with two rotating drums, the two rotating drums are arranged along the length direction of the supporting arm, the two rotating drums are rotatably arranged at the bottom of the fixed frame, and the rotating axis of the rotating drum is arranged along the width direction of the supporting arm; each of the rotating drums is provided with a through sliding hole, and the axis of the sliding hole is arranged perpendicularly to the rotating axis of the rotating drum; The supporting sliding rod is provided with two supporting sliding rods, each of the supporting sliding rods corresponds to one of the rotating drums; the top end of each of the supporting sliding rods is rotatably connected to the bearing seat, and the rotating direction is arranged along the width direction of the supporting arm; the bottom end of each of the supporting sliding rods extends out through the sliding hole of the corresponding rotating drum; The fixed nut is provided with two fixed nuts, each of the fixed nuts is threadedly connected to the extended end of each of the supporting sliding rods; The vertical spring is provided with two vertical springs, each of the vertical springs is sleeved on each of the supporting sliding rods; one end of each of the vertical springs abuts against the bearing seat, and the other end abuts against the corresponding rotating drum.

6. The rescue trailer wheel well support cushioning mechanism of claim 1, wherein, Each of the horizontal buffering structures comprises: The sliding block is slidably arranged in the first mounting cavity along the length direction of the supporting arm, and the end close to the bearing seat is provided with a second inclined surface matched with the first inclined surface; The guide column is provided with a plurality of guide columns, each of the guide columns is arranged along the vertical direction and each of the guide columns is arranged along the length direction of the supporting arm; one end of each of the guide columns is fixedly connected to the sliding block, and the other end is slidably connected to the guide hole arranged on the side wall of the fixed frame; The horizontal spring is provided with a plurality of horizontal springs, each of the horizontal springs is sleeved on each of the guide columns, one end of each of the horizontal springs abuts against the sliding block, and the other end abuts against the inner wall surface of the first mounting cavity.

7. The rescue trailer wheel well support cushioning mechanism of claim 6, wherein, A plurality of rollers capable of rolling contact with the first inclined surface are arranged on the second inclined surface, and the rotating axis of each of the rollers is arranged along the width direction of the supporting arm.

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