Vehicle disengagement brake device and braking method

Abstract

The application relates to the technical field of vehicle braking, in particular to a vehicle disengaging braking device and a braking method. The vehicle disengaging braking device comprises a connecting assembly and a braking assembly. The connecting assembly comprises a first connecting frame connected with a vehicle frame and a second connecting frame rotationally connected with the first connecting frame, and the end of the second connecting frame is connected with a trailer. The braking assembly is arranged between the first connecting frame and the second connecting frame, and comprises a braking piece rotationally arranged on the first connecting frame and a pull rod rotationally connected with the braking piece and the second connecting frame at two ends. The vehicle disengaging braking device connects the trailer and the vehicle through the first connecting frame and the second connecting frame, and the movement of the vehicle is controlled by the trailer. When the second connecting frame is accidentally disengaged from the trailer, the second connecting frame will rotate relative to the first connecting frame, drive the pull rod to control the friction surface of the braking piece to contact the wheels of the vehicle, limit the movement of the vehicle, and avoid accidents caused by the disordered movement of the vehicle.

Description

Technical Field

[0001] This invention relates to the technical field of vehicle braking, and more particularly to a vehicle disengagement braking device and braking method. Background Technology

[0002] Currently, the movement of non-powered vehicles usually requires towing by a trailer. The trailer and the non-powered vehicle are connected by a connecting device. When the vehicle is being towed by the trailer, if an accident occurs and the vehicle detaches from the trailer, the non-powered vehicle will continue to move due to inertia. The vehicle is prone to collisions during the disorderly movement, which can lead to accidents. Summary of the Invention

[0003] In view of the problem that existing vehicles, after being detached from their trailers in the event of an accident, move erratically, this invention is proposed.

[0004] Therefore, the first objective of this invention is to provide a vehicle disengagement braking device that can restrict the movement of a vehicle after it has been detached from a trailer in an accident.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a vehicle disengagement braking device, comprising: a connecting assembly including a first connecting frame connected to a vehicle frame and a second connecting frame rotatably connected to the first connecting frame, the end of the second connecting frame being connected to a trailer; and a braking assembly disposed between the first connecting frame and the second connecting frame, comprising a brake member rotatably disposed on the first connecting frame, and a pull rod having both ends rotatably connected to the brake member and the second connecting frame respectively, the free end of the brake member having a friction surface for braking in contact with a wheel; the second connecting frame rotatably controls the friction surface of the brake member to contact the wheel.

[0006] As a preferred embodiment of the vehicle release braking device of the present invention, the second connecting frame includes a rotating part rotatably connected to the first connecting frame, a sleeve part connected to the trailer, and a pressing part connected to the pull rod, wherein the rotating part is located between the sleeve part and the pressing part.

[0007] As a preferred embodiment of the vehicle disengagement braking device of the present invention, the braking component includes: a mounting rod rotatably connected to the first connecting frame, an extension rod provided on the mounting rod, the end of the extension rod being rotatably connected to the first connecting frame via a pin, a connecting rod rotatably connected to the pull rod on the mounting rod, and an arc-shaped plate provided at the free end of the mounting rod, the inner side of the arc-shaped plate being a friction surface that contacts the wheel for braking.

[0008] As a preferred embodiment of the vehicle disengagement braking device of the present invention, the mounting rod includes two free ends on which arc-shaped plates are mounted, the two arc-shaped plates contact two wheels for braking, and the connecting rod is located between the two arc-shaped plates.

[0009] As a preferred embodiment of the vehicle disengagement braking device of the present invention, the inner side of the arc-shaped plate is provided with a plurality of friction strips that contact the wheel, and the contact surface of the friction strips that contact the wheel for braking is a friction surface.

[0010] In a preferred embodiment of the vehicle disengagement braking device of the present invention, the first connecting frame includes a welding frame connected to the vehicle frame, the welding frame is provided with a mounting frame extending along the vehicle's forward direction, and the end of the mounting frame away from the welding frame is rotatably connected to the second connecting frame.

[0011] As a preferred embodiment of the vehicle disengagement braking device of the present invention, the welding frame is provided with two extending mounting brackets along the vehicle's forward direction, and there is an accommodating space between the two mounting brackets, with the pull rod located in the accommodating space.

[0012] In a preferred embodiment of the vehicle disengagement braking device of the present invention, the second connecting frame is rotatably provided with a limiting member, and the first connecting frame is provided with a limiting frame connected to the limiting member.

[0013] As a preferred embodiment of the vehicle disengagement braking device of the present invention, the limiting member includes a connecting part rotatably connected to the second connecting frame, a hook-on part disposed at one end of the limiting member and connected to the limiting frame and in a bent shape, and a prying part disposed at the other end of the limiting member for separating the hook-on part from the limiting frame; when the hook-on part cooperates with the limiting frame, the included angle α between the first connecting frame and the second connecting frame is greater than 90°.

[0014] As a preferred embodiment of the vehicle disengagement braking device of the present invention, the second connecting frame is provided with at least one handle for towing.

[0015] The beneficial effects of this vehicle disengaging braking device are as follows: By installing a first connecting frame at the end of the vehicle frame and connecting a second connecting frame to the trailer, when the second connecting frame accidentally disengages from the trailer, the second connecting frame will rotate relative to the first connecting frame, causing the friction surface of the control brake to contact the vehicle's wheels, thus restricting the vehicle's movement and preventing accidents caused by disorderly vehicle movement.

[0016] A second objective of this invention is to provide a vehicle disengagement braking method that can restrict the movement of a vehicle after it has been detached from a trailer in the event of an accident.

[0017] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a vehicle disengagement braking method, including a vehicle disengagement braking device, comprising the following steps: fixing the end of a first connecting frame to a vehicle frame and fixing the end of a second connecting frame to a trailer, wherein the friction surface of the brake component does not contact the wheel, and is used to tow the vehicle; after the second connecting frame accidentally disengages from the trailer, the end of the second connecting frame falls without support, driving the lever to control the brake component to rotate, so that the friction surface of the brake component contacts the wheel for braking the vehicle.

[0018] In a preferred embodiment of the vehicle disengagement braking method of the present invention, when the second connecting frame is connected to the trailer, the end of the second connecting frame connected to the trailer is higher than the end connected to the first connecting frame. At this time, the distance between the pressing part of the second connecting frame and the wheel is the shortest. The friction surface of the brake component does not contact the wheel. When the second connecting frame is accidentally disengaged from the trailer, the second connecting frame loses its support and rotates. At this time, the sleeve part of the second connecting frame contacts the ground, and at the same time, it drives the pressing part away from the wheel and pulls the lever to control the friction surface of the brake component to contact the wheel, thereby braking the vehicle.

[0019] As a preferred embodiment of the vehicle disengagement braking method of the present invention, the braking component is provided with multiple friction surfaces for cooperating with multiple wheels. After the second connecting frame is accidentally disengaged from the trailer, the multiple friction surfaces can simultaneously restrict the movement of multiple wheels.

[0020] The beneficial effects of the present invention are as follows: the trailer and the vehicle are connected by the first connecting frame and the second connecting frame, and the movement of the vehicle is controlled by the trailer. When the second connecting frame accidentally detaches from the trailer, the second connecting frame will rotate relative to the first connecting frame, causing the friction surface of the brake component controlled by the lever to contact the wheel of the vehicle, thereby restricting the movement of the vehicle and preventing accidents caused by disorderly movement of the vehicle. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 An overall schematic diagram of Embodiment 1 is shown; Figure 2 A schematic diagram of the second connecting frame of Embodiment 2 is shown; Figure 3 A schematic diagram of the braking component of Embodiment 2 is shown; Figure 4 A schematic diagram of the extension rod rotation connection in Embodiment 2 is shown; Figure 5 A schematic diagram of the trailer status in Embodiment 2 is shown; Figure 6 A schematic diagram of the braking state in Embodiment 2 is shown; Figure 7 An overall schematic diagram of Embodiment 3 is shown; Figure 8 An overall schematic diagram of Embodiment 4 is shown; Figure 9 A schematic diagram of the limiting member of Embodiment 4 is shown.

[0023] In the diagram: 100, connecting assembly; 101, first connecting frame; 102, second connecting frame; 200, braking assembly; 201, braking element; 202, pull rod; S, friction surface; 102a, rotating part; 102b, sleeve part; 102c, pressing part; 201a, mounting rod; 201b, extension rod; 201c, connecting rod; 201d, arc plate; 201e, friction strip; 101a, welding frame; 101b, mounting frame; 103, limiting element; 104, limiting frame; 103a, connecting part; 103b, hooking part; 103c, prying part; 102d, handle. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0025] The terminology used in this invention is that which is currently widely used in the art in consideration of the function of the invention; however, these terms may vary according to the intent of those skilled in the art, precedent, or new technology in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the invention. Therefore, the terms used in this specification should not be construed as simple names, but rather based on their meanings and the overall description of the invention.

[0026] Example 1, referring to Figure 1 The first embodiment of the present invention provides a vehicle disengagement braking device, including a connecting assembly 100 and a braking assembly 200.

[0027] The connecting assembly 100 includes a first connecting frame 101 connected to the vehicle frame and a second connecting frame 102 rotatably connected to the first connecting frame 101. The end of the second connecting frame 102 is connected to a trailer. The vehicle frame of the unpowered vehicle is connected to the trailer through the first connecting frame 101 and the second connecting frame 102. The trailer provides power to control the movement of the vehicle.

[0028] The braking assembly 200 is disposed between the first connecting frame 101 and the second connecting frame 102. It includes a brake member 201 rotatably disposed on the first connecting frame 101, and a pull rod 202 whose two ends are respectively rotatably connected to the brake member 201 and the second connecting frame 102. The free end of the brake member 201 is provided with a friction surface S that contacts the wheel for braking. The rotation of the second connecting frame 102 controls the friction surface S of the brake member 201 to contact the wheel.

[0029] In use, the first connecting frame 101 is connected to the vehicle frame, and one end of the second connecting frame 102 is connected to the trailer. At this time, under the action of the pull rod 202, the friction surface S of the brake component 201 separates from the wheel. When the second connecting frame 102 accidentally separates from the trailer, the end of the second connecting frame 102 will fall off due to the lack of support, and at the same time, it will rotate relative to the first connecting frame 101. The pull rod 202 controls the brake component 201 to rotate, so that the friction surface S at its free end contacts the wheel, which is used to brake the vehicle and prevent its disorderly movement from causing an accident.

[0030] The length from the rotating part of the second connecting frame 102 to the trailer is much greater than the distance from the rotating part of the second connecting frame 102 to the pull rod 202. The two form a force-saving lever structure. When the second connecting frame 102 is accidentally separated from the trailer, the force generated by the self-weight of the end of the second connecting frame 102 is amplified by the lever and firmly pulls the pull rod 202, thereby making the friction surface S firmly in contact with the wheel, restricting the rotation of the wheel, and achieving the braking effect.

[0031] Example 2, refer to Figures 2-6 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the second connecting frame 102 includes a rotating part 102a rotatably connected to the first connecting frame 101, a sleeve part 102b connected to the trailer, and a pressing part 102c connected to the pull rod 202. The rotating part 102a is located between the sleeve part 102b and the pressing part 102c. The distance from the pressing part 102c to the rotating part 102a is much smaller than the distance from the sleeve part 102b to the rotating part 102a, forming a force-saving lever structure.

[0032] The braking component 201 includes a mounting rod 201a rotatably connected to the first connecting frame 101, an extension rod 201b on the mounting rod 201a, the end of the extension rod 201b being rotatably connected to the first connecting frame 101 via a pin, the extension rod 201b being mounted on the mounting rod 201a, a connecting rod 201c rotatably connected to the pull rod 202 on the mounting rod 201a, and an arc-shaped plate 201d at the free end of the mounting rod 201a. The inner side of the arc-shaped plate 201d is a friction surface S that contacts the wheel for braking. The end of the extension rod 201b coincides with the first connecting frame 101 and is rotatably connected via a pin, or the extension rod 201b is mounted on the first connecting frame 101. The mounting rod 201a has a groove, and the extension rod 201b is inserted into the groove and rotatably connected via a pin.

[0033] like Figure 5 As shown, when the trailer is in operation, the first connecting frame 101 is connected to the vehicle frame, and one end of the second connecting frame 102 is connected to the trailer. The end of the second connecting frame 102 connected to the trailer is higher than the end of the first connecting frame 101. It should be noted that when one end of the second connecting frame 102 is connected to the trailer, the friction surface S on the inner side of the arc plate 201d is separated from the wheel.

[0034] like Figure 6 As shown, when the second connecting frame 102 is accidentally separated from the trailer and braked, the end of the first connecting frame 101 will fall off due to lack of support, and will rotate relative to the first connecting frame 101. At this time, the pressing part 102c rotates, driving the pull rod 202 to control the connecting rod 201c to rotate, so that the mounting rod 201a and the arc plate 201d rotate and contact the wheel, and restrict the disorderly movement of the vehicle through the friction surface S.

[0035] Preferably, when one end of the second connecting frame 102 is connected to the trailer, the distance between the extrusion part 102c and the vehicle frame is the shortest. When the second connecting frame 102 is accidentally separated from the trailer, the extrusion part 102c rotates and moves away from the vehicle frame. At this time, under the action of the pull rod 202, the connecting rod 201c is pulled to drive the mounting rod 201a to rotate, so that the arc plate 201d contacts the wheel.

[0036] Furthermore, the mounting rod 201a includes two free ends on which arc-shaped plates 201d are mounted. The two arc-shaped plates 201d contact the two wheels for braking. The connecting rod 201c is located between the two arc-shaped plates 201d. The two arc-shaped plates 201d can simultaneously contact the wheels on both sides of the vehicle when the vehicle moves randomly, thereby improving the braking effect.

[0037] Furthermore, the inner side of the arc plate 201d is provided with multiple friction strips 201e that contact the wheel. The contact surface of the friction strips 201e that contacts the wheel for braking is the friction surface S. The braking effect is further improved by the friction strips 201e.

[0038] The remaining structure is the same as that in Example 1.

[0039] Example 3, referring to Figure 7 This is the third embodiment of the present invention. The difference between this embodiment and the second embodiment is that the first connecting frame 101 includes a welding frame 101a connected to the vehicle frame. The welding frame 101a is provided with a mounting frame 101b extending along the vehicle's forward direction. The end of the mounting frame 101b away from the welding frame 101a is rotatably connected to the second connecting frame 102. The welding frame 101a is used to weld and fix the mounting frame 101b to the front axle of the vehicle.

[0040] Furthermore, the welding frame 101a is provided with two extended mounting brackets 101b along the vehicle's forward direction, and there is an accommodating space between the two mounting brackets 101b. The tie rod 202 is located in the accommodating space, and the two mounting brackets 101b can improve stability.

[0041] The remaining structure is the same as that in Example 2.

[0042] Example 4, refer to Figure 8 and Figure 9 This is the fourth embodiment of the present invention. The difference between this embodiment and the third embodiment is that the second connecting frame 102 is rotatably provided with a limiting member 103, and the first connecting frame 101 is provided with a limiting frame 104 connected to the limiting member 103.

[0043] The limiting member 103 includes a connecting part 103a rotatably connected to the second connecting frame 102, a hook part 103b located at the end of the limiting member 103 and connected to the limiting frame 104 and bent in shape, and a prying part 103c located at the other end of the limiting member 103 for separating the hook part 103b from the limiting frame 104. When the hook part 103b is engaged with the limiting frame 104, the included angle α between the first connecting frame 101 and the second connecting frame 102 is greater than 90°. In the initial state, the hook part 103b causes the prying part 103c to tilt up under the action of gravity.

[0044] In use, when limiting and storing the second connecting frame 102, rotate the second connecting frame 102 counterclockwise to reduce the angle α between the second connecting frame 102 and the first connecting frame 101 to less than 90°. At the same time, press down on the prying part 103c to make the hanging part 103b lift up. After the hanging part 103b passes through the limiting frame 104, release the prying part 103c. At this time, the hanging part 103b will fall down, and its end will be lower than the limiting frame 104. Then rotate the second connecting frame 102 clockwise to increase the angle α between the second connecting frame 102 and the first connecting frame 101 until the hanging part 103b coincides with the limiting frame 104. At this time, the included angle α between the first connecting frame 101 and the second connecting frame 102 is greater than 90°. Under the action of gravity, the second connecting frame 102 fixes the hanging part 103b and the limiting frame 104, reducing the space occupied by the entire device.

[0045] When connecting the second connecting frame 102 to the trailer, rotate the second connecting frame 102 counterclockwise to reduce the angle α between the second connecting frame 102 and the first connecting frame 101. When the hook part 103b separates from the limiting frame 104, press down on the prying part 103c to make the hook part 103b lift up. Then rotate the second connecting frame 102 clockwise to increase the angle α between the second connecting frame 102 and the first connecting frame 101 until the hook part 103b and the limiting frame 104 are misaligned. At this time, release the prying part 103c, and the second connecting frame 102 can be rotated at a large angle to fix it to the trailer.

[0046] Furthermore, the second connecting frame 102 is provided with at least one towing handle 102d, which allows the unpowered vehicle to be moved in an emergency by pulling it when there is no trailer available.

[0047] Furthermore, the second connecting frame 102 is provided with a protective component 102e. When the second connecting frame 102 accidentally detaches from the trailer and falls, the protective component 102e can protect the second connecting frame 102, buffer the second connecting frame 102 when it falls, and prevent it from directly contacting and rubbing against the ground.

[0048] The remaining structure is the same as that in Example 3.

[0049] Example 5 is the fifth embodiment of the present invention. This embodiment provides a vehicle disengagement braking method, including a vehicle disengagement braking device. Specifically, it includes the following steps: fixing the end of the first connecting frame 101 to the vehicle frame and fixing the end of the second connecting frame 102 to the trailer. At this time, the friction surface S of the brake element 201 does not contact the wheel and is used to tow the vehicle. After the second connecting frame 102 accidentally disengages from the trailer, the end of the second connecting frame 102 falls without support, driving the pull rod 202 to control the brake element 201 to rotate, so that the friction surface S of the brake element 201 contacts the wheel to brake the vehicle, restrict the movement of the vehicle, and avoid the vehicle moving disorderly and causing an accident.

[0050] Furthermore, when the second connecting frame 102 is connected to the trailer, the end of the second connecting frame 102 connected to the trailer is higher than the end connected to the first connecting frame 101. At this time, the distance between the pressing part 102c of the second connecting frame 102 and the wheel is the shortest. At this time, the friction surface S of the brake 201 does not contact the wheel and does not affect the movement of the vehicle.

[0051] When the second connecting frame 102 accidentally detaches from the trailer, the second connecting frame 102 loses its support and rotates. At this time, the sleeve part 102b of the second connecting frame 102 contacts the ground, and at the same time, it drives the pressing part 102c away from the wheel, and pulls the lever 202 to control the friction surface S of the brake 201 to contact the wheel, thereby braking the vehicle and preventing it from moving randomly and causing an accident.

[0052] Furthermore, the brake component 201 is provided with multiple friction surfaces S for cooperating with multiple wheels. After the second connecting frame 102 accidentally detaches from the trailer, the multiple friction surfaces S can simultaneously restrict the movement of multiple wheels, thereby improving the braking effect of the vehicle.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A vehicle disengagement braking device, characterized in that: include, The connecting assembly (100) includes a first connecting frame (101) connected to a vehicle frame and a second connecting frame (102) rotatably connected to the first connecting frame (101), the end of the second connecting frame (102) being connected to a trailer; and, A braking assembly (200) is disposed between the first connecting frame (101) and the second connecting frame (102). It includes a brake member (201) rotatably disposed on the first connecting frame (101) and a pull rod (202) whose two ends are respectively rotatably connected to the brake member (201) and the second connecting frame (102). The free end of the brake member (201) is provided with a friction surface (S) that contacts the wheel for braking. The second connecting frame (102) rotates to control the friction surface (S) of the brake (201) to contact the wheel.

2. The vehicle disengagement braking device according to claim 1, characterized in that: The second connecting frame (102) includes a rotating part (102a) rotatably connected to the first connecting frame (101), a sleeve part (102b) connected to the trailer, and a pressing part (102c) connected to the pull rod (202). The rotating part (102a) is located between the sleeve part (102b) and the pressing part (102c).

3. The vehicle disengagement braking device according to claim 1 or 2, characterized in that: The braking component (201) includes a mounting rod (201a) rotatably connected to the first connecting frame (101), an extension rod (201b) on the mounting rod (201a), the end of the extension rod (201b) being rotatably connected to the first connecting frame (101) via a pin, a connecting rod (201c) rotatably connected to the pull rod (202) on the mounting rod (201a), and an arc-shaped plate (201d) on the free end of the mounting rod (201a), the inner side of the arc-shaped plate (201d) being a friction surface (S) that contacts the wheel for braking.

4. The vehicle disengagement braking device according to claim 3, characterized in that: The mounting rod (201a) includes two free ends on which arc-shaped plates (201d) are mounted. The two arc-shaped plates (201d) contact two wheels for braking. The connecting rod (201c) is located between the two arc-shaped plates (201d).

5. The vehicle disengagement braking device according to claim 4, characterized in that: The inner side of the arc-shaped plate (201d) is provided with a plurality of friction strips (201e) that contact the wheel. The contact surface of the friction strips (201e) that contact the wheel for braking is the friction surface (S).

6. The vehicle disengagement braking device according to any one of claims 1, 2, 4, and 5, characterized in that: The first connecting frame (101) includes a welding frame (101a) connected to the vehicle frame. The welding frame (101a) is provided with a mounting frame (101b) extending along the vehicle's forward direction. The end of the mounting frame (101b) away from the welding frame (101a) is rotatably connected to the second connecting frame (102).

7. The vehicle disengagement braking device according to claim 6, characterized in that: The welding frame (101a) has two extended mounting brackets (101b) along the vehicle's forward direction, and there is an accommodating space between the two mounting brackets (101b), in which the pull rod (202) is located.

8. The vehicle disengagement braking device according to any one of claims 1, 2, 4, 5, and 7, characterized in that: The second connecting frame (102) is rotatably provided with a limiting member (103), and the first connecting frame (101) is provided with a limiting frame (104) connected to the limiting member (103).

9. The vehicle disengagement braking device according to claim 8, characterized in that: The limiting member (103) includes a connecting part (103a) rotatably connected to the second connecting frame (102), a hook part (103b) located at the end of the limiting member (103) and connected to the limiting frame (104) and in a bent shape, and a prying part (103c) located at the other end of the limiting member (103) for separating the hook part (103b) from the limiting frame (104); When the hook part (103b) cooperates with the limiting frame (104), the included angle α between the first connecting frame (101) and the second connecting frame (102) is greater than 90°.

10. The vehicle disengagement braking device according to any one of claims 1, 2, 4, 5, 7, and 9, characterized in that: The second connecting frame (102) has at least one handle (102d) for dragging.

11. A method for disengaging a vehicle from braking, employing the vehicle disengagement braking device as described in claim 1, characterized in that: include, By fixing the end of the first connecting frame (101) to the vehicle frame and fixing the end of the second connecting frame (102) to the trailer, the friction surface (S) of the brake (201) does not contact the wheel and is used to tow the vehicle. After the second connecting frame (102) accidentally detaches from the trailer, the end of the second connecting frame (102) loses support and falls, causing the pull rod (202) to rotate the brake (201), so that the friction surface (S) of the brake (201) contacts the wheel to brake the vehicle.

12. The vehicle disengagement braking method according to claim 11, characterized in that: When the second connecting frame (102) is connected to the trailer, the end of the second connecting frame (102) connected to the trailer is higher than the end connected to the first connecting frame (101). At this time, the distance between the pressing part (102c) of the second connecting frame (102) and the wheel is the shortest; the friction surface (S) of the brake (201) does not contact the wheel. When the second connecting frame (102) accidentally detaches from the trailer, the second connecting frame (102) loses its support and rotates. At this time, the sleeve part (102b) of the second connecting frame (102) contacts the ground, and at the same time, it drives the pressing part (102c) away from the wheel, and pulls the lever (202) to control the friction surface (S) of the brake (201) to contact the wheel, thus braking the vehicle.

13. The vehicle disengagement braking method according to claim 11 or 12, characterized in that: The brake component (201) is provided with multiple friction surfaces (S) for cooperating with multiple wheels. After the second connecting frame (102) is accidentally detached from the trailer, the multiple friction surfaces (S) can simultaneously restrict the movement of multiple wheels.

Images