Vehicle emergency pull-out system

Abstract

The application provides a vehicle emergency towing-out system, which comprises a test vehicle, a towing device, a stand, and a quick unbinding device; the towing device is connected with a trailer hook at the rear end of the test vehicle and is used for towing out the test vehicle in an emergency; the quick unbinding device comprises an unhooker which is unlocked when an emergency occurs; and the stand fixes the test vehicle at a test site through the unhooker. The vehicle emergency towing-out system can quickly unbind and tow out the vehicle indoors when a fire trend occurs during vehicle testing or maintenance, so that the system can be used for outdoor fire extinguishing and rescue.

Description

Technical Field

[0001] This invention belongs to the field of vehicle emergency towing, and in particular relates to a vehicle emergency towing system. Background Technology

[0002] Currently, vehicles often require performance and emissions testing, as well as indoor maintenance and debugging, in indoor environments. This is especially true for new energy vehicles, which rely on battery packs or fuel cell packs for power. Some newly developed battery packs have high energy density but insufficient stability, posing a risk of spontaneous combustion or excessive temperature rise and fire during extreme testing or maintenance of energy storage components. Indoor testing and maintenance fires can damage equipment stored in laboratories or repair shops, and battery combustion may release toxic gases, potentially causing injury or death. To reduce potential losses and improve the safety of indoor testing and maintenance, it is necessary to design a system capable of towing a vehicle out of the building if it shows signs of fire, allowing for outdoor firefighting and suppression.

[0003] Existing vehicle testing emergency systems mostly involve directly spraying fine water mist indoors for cooling. However, once a power battery pack of a new energy vehicle catches fire, it is difficult to extinguish and will inevitably burn other equipment in the laboratory, endangering the personal safety of the test personnel. In order to ensure that comprehensive testing and maintenance of vehicles can be carried out safely and reliably, a system that can remove the vehicle from the room is needed to meet the needs of the automotive testing and maintenance industry. Summary of the Invention

[0004] In view of this, the present invention aims to propose a vehicle emergency towing system. Indoors, there is a quick-release device for fixing the test vehicle and the column, and a release arm for retracting the release device. Outdoors, at the rear is a traction device, and at the front is a damping guide device. During normal testing, the traction device does not operate, and the quick-release device does not disengage. Once an alarm is triggered, the quick-release device is controlled to detach from the column, the release arm retracts the quick-release device, the traction device activates, and the test vehicle is towed out. Simultaneously, the damping guide device ensures the vehicle moves in a straight line throughout the process, preventing deviation.

[0005] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0006] An emergency vehicle towing system includes a test vehicle, a towing device, a support column, and a quick untying device;

[0007] The towing device is connected to the trailer hook at the rear of the test vehicle and is used to tow the test vehicle out in an emergency.

[0008] The quick-release device includes a release mechanism that unlocks the device in case of an emergency.

[0009] The column secures the test vehicle to the test site using a release device.

[0010] Furthermore, it also includes a damping guide device, which is connected to the trailer hitch at the front of the test vehicle.

[0011] The damping guide device is used to provide damping force when the test vehicle is towed out, ensuring the test vehicle moves in a straight line.

[0012] Furthermore, the pillar located at the front side of the test vehicle is used to secure the vehicle with ropes and a release device;

[0013] The pillar located at the side and rear of the test vehicle secures the vehicle using a swing arm and a unhooking device;

[0014] The swing arm is used to retract the unhooker to both sides after it is unlocked.

[0015] Furthermore, the swing arm includes a large swing arm and a small swing arm. The small swing arm is connected to the fixed hook of the unhooking device via a rope. The small swing arm is connected to the large swing arm via a torsion spring. The large swing arm is connected to the pillar located at the rear of the side of the vehicle via a torsion spring.

[0016] Furthermore, the quick untying device includes two cylinders, which are connected to the unhooking handle of the unhooking device via ropes, and the detachable hook of the unhooking device is connected to the hook.

[0017] The hook release device includes a fixed hook, a hook release device bracket, a hook release handle, a detachable hook, a swing block, a swing block shaft, a connecting block, a fixed pin, a connecting block shaft, and a hook release handle shaft;

[0018] The swing block is rotatably connected to the hook release bracket on its lower side. One end of the connecting block is rotatably connected to the upper side of the swing block via the swing block pivot, and the other end is rotatably connected to the hook release handle via the connecting block pivot. The base of the hook release handle is rotatably connected to the hook release bracket via the hook release handle pivot. The head of the hook release handle is connected to the cylinder via a rope. A fixing pin is also provided between the connecting block and the hook release handle. The lifting ring of the fixing pin is connected to a manual / automatic pin-pulling mechanism. In case of emergency, the fixing pin can be pulled out manually or automatically to unlock the device. The fixing pin serves as a safety device to prevent accidental activation during normal operation. Therefore, in case of emergency, the fixing pin must be pulled out first before proceeding with subsequent actions.

[0019] Furthermore, the traction device includes a traction motor, a traction rope turntable, a reducer, and a traction system bracket. The traction system bracket is fixed to the ground, and the traction rope extending from the traction rope turntable is connected to the trailer hook at the rear of the test vehicle.

[0020] Furthermore, the tow hook at the front of the test vehicle is connected to the traction rope of the damping guide device. The damping guide device is fixed to the ground through the guide device bracket. A pneumatic brake damper is placed on the rope release turntable. The pneumatic brake damper is connected to compressed air to provide damping force throughout the process.

[0021] Furthermore, the usage method is as follows:

[0022] The test vehicle is secured to the column via a quick untying device, rope, or removable swing arm to ensure that the vehicle is not in conflict during indoor performance testing or maintenance.

[0023] In the event of a fire or excessive temperature warning, the uncoupling device is unlocked by triggering the cylinder, releasing the test vehicle. Then, the uncoupling device is withdrawn to both sides by the withdrawal swing arm to prevent it from getting caught under the vehicle. Subsequently, the traction device is activated to tow the test vehicle out of the building. During the towing process, the pneumatic brake damper of the damping guide device is in a braking state to maintain the damping force and restrain the test vehicle, making it move in a straight line.

[0024] Compared with the prior art, the vehicle emergency towing system of the present invention has the following advantages:

[0025] (1) The vehicle emergency towing system described in this invention can quickly untie and tow a vehicle out of the building if it shows signs of catching fire during testing or maintenance, so that it can be put out and extinguished outdoors.

[0026] (2) The vehicle emergency towing system described in this invention is easy to install and fix, simple to construct, and convenient to install in parallel in multiple laboratories or repair shops.

[0027] (3) The vehicle emergency towing system described in this invention is simple to operate and can achieve one-click unhooking and towing of the test vehicle.

[0028] (4) The vehicle emergency towing system described in this invention has a fast towing speed, completing the entire process of towing the vehicle out of the outdoors within one minute, and the towing process is stable due to the action of the damping guide device. Attached Figure Description

[0029] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0030] Figure 1 This is a schematic axonometric view of a vehicle emergency towing system according to an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the overall structure according to an embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of the actuator structure according to an embodiment of the present invention;

[0033] Figure 4 This is a schematic diagram of the unhooking device structure according to an embodiment of the present invention;

[0034] Figure 5 This is a schematic diagram of the retraction swing arm according to an embodiment of the present invention;

[0035] Figure 6 This is a schematic diagram of the traction device described in an embodiment of the present invention;

[0036] Figure 7 This is a schematic diagram of the damping and guiding device described in an embodiment of the present invention;

[0037] Figure 8 This is a partial structural diagram of the unhooking device according to an embodiment of the present invention (unlocked state);

[0038] Figure 9 This is a partial structural diagram of the unhooking device according to an embodiment of the present invention (unlocked state, only the swing block is shown in the figure);

[0039] Figure 10 This is a partial structural diagram of the unhooking device according to an embodiment of the present invention (an unlocked state from another angle, with only the swing block remaining in the diagram).

[0040] Explanation of reference numerals in the attached figures:

[0041] 1-Test vehicle; 2-Damping guide device; 3-Quick untying device; 4-Release swing arm; 5-Traction device; 6-Cylinder; 7-Unhook device; 8-Trailer hook; 9-Fixed hook; 10-Unhook device bracket; 11-Unhook handle; 12-Detachable hook; 1201-Hook shaft; 13-Swing block; 14-Swing block shaft; 15-Connecting block; 16-Fixed pin; 17-Connecting block shaft; 18-Unhook handle shaft; 19-Column; 20-Large swing arm; 21-Small swing arm; 22-Tow rope; 23-Traction motor; 24-Traction rope turntable; 25-Reducer; 26-Traction system bracket; 27-Guide device bracket; 28-Rope release turntable; 29-Pneumatic brake damper; 30-Separation point after unlocking. Detailed Implementation

[0042] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0043] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0044] like Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 The image shows a vehicle emergency towing system.

[0045] The test vehicle is connected to the quick release device, the release swing arm, the traction device, and the damping guide device. The quick release device 3 is connected to both the front and rear ends of the test vehicle 1. The rear quick release device is connected to the release swing arm 4 via a rope. The rear end of the test vehicle 1 is connected to the traction device 5, and the front end is connected to the damping guide device 2. The quick release device 2 includes two cylinders 6, which are connected to two release devices 7 via ropes. The detachable hook 12 of the release device 7 is connected to the trailer hook 8 of the test vehicle. The release device 7 includes a fixed hook 9, a release device bracket 10, a release handle 11, a detachable hook 12, a swing block 13, a swing block shaft 14, a connecting block 15, a fixed pin 16, a connecting block shaft 17, and a release handle shaft 18. The fixed hook 9 of the rear release device 7 is connected to the small swing arm 21 of the release swing arm 4 via a rope. The small swing arm 21 is connected to the large swing arm 20 via a torsion spring. 0 is connected to the column via a torsion spring; the traction device 5 includes a traction motor 23, a traction rope turntable 24, a reducer 25, and a traction system bracket 26. The traction system bracket 26 is fixed to the ground. The traction rope extending from the traction rope turntable 24 is connected to the trailer hook at the rear end of the test vehicle 1. The trailer hook at the front end of the test vehicle 1 is connected to the traction rope of the damping guide device 2. The damping guide device 2 is fixed to the ground via the guide device bracket 27. A pneumatic brake damper 29 is placed on the rope release turntable 28. The pneumatic brake damper 29 is connected to compressed air to provide damping force throughout the process.

[0046] The rear end of the test vehicle 1 is connected to two detachable hooks 12 of the unhooking device 7. The unhooking handle 11 of the unhooking device 7 is fixed to the cylinder 6 via a rope. The fixed hook 9 of the unhooking device 7 is connected to the towing rope 22. The other end of the towing rope 22 is connected to the small swing arm 21 of the retraction swing arm 4. A torsion spring is placed between the small swing arm 21 and the large swing arm 20. The large swing arm is placed on the column 19 and is also connected via a torsion spring. In addition, the front end of the test vehicle 1 is connected to the detachable hooks 12 of the unhooking device 7. The unhooking handle 11 of the unhooking device 7 is fixed to the cylinder 6 via a rope. The fixed hook 9 of the unhooking device 7 is fixed to the column via a rope. When the cylinder 6 activates the towing rope, it drives the unhooking handle 11 of the unhooking device 7 to rotate around the unhooking handle pivot 18, thus detaching the hook. During the rotation of the hook handle 11, the connecting block 15 rotates around the connecting block shaft 17 via the fixed pin 16. The connecting block 15 drives the swing block 13 to move upward through the swing block shaft 14, releasing the detachable hook 12 and completing the unhooking action. The rear trailer hook of the test vehicle 1 is connected to the traction rope of the traction device 5, and the front trailer hook of the test vehicle 1 is connected to the guide rope of the damping guide device 2. The pneumatic brake damper 29 of the damping guide device 2 is connected to compressed air and is in a braking state throughout the process. After the unhooking is completed, the traction device 5 is started, and the traction device 5 tows the test vehicle 1 to move outdoors. During the towing process, the damping guide device 2 always maintains a braking state to provide a certain damping force to ensure the straight movement of the vehicle.

[0047] The working process of a vehicle emergency towing system mentioned in this invention:

[0048] Combination Figure 2 , Figure 3 , Figure 5 , Figure 7 As can be seen, the test vehicle 1 is fixed to the column by the quick untying device 3 via ropes or the retraction swing arm 4, which ensures that the vehicle is fixed and does not rush out during indoor performance testing or maintenance. In the event of a fire or excessive temperature warning, the unhooking device 7 is unlocked by triggering the cylinder 6, releasing the test vehicle 1. Then, the unhooking device 7 is retracted to both sides by the retraction swing arm 4 to prevent it from being caught under the vehicle. Subsequently, the traction device 5 is activated to drag the test vehicle 1 out of the building. During the dragging process, the pneumatic brake damper 29 of the damping guide device 2 is in a braking state, maintaining a certain damping force to restrain the test vehicle 1 and make it move in a straight line.

[0049] For ease of understanding, see the unlocked state of the unhooker. Figure 8 At this time, the swing block 13 and the unhooking device bracket 10 have not yet separated. The number 30 in the figure is the contact part between the swing block 13 and the unhooking device bracket 10. After unlocking, the swing block 13 and the unhooking device bracket 10 separate from the unlocking separation point 30, thereby forming a gap at the unlocking separation point 30. The hook shaft 1201 moves out from the gap and disengages, realizing the unhooking operation.

[0050] Those skilled in the art will recognize that the units and method steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0051] In the several embodiments provided in this application, it should be understood that the disclosed methods and systems can be implemented in other ways. For example, the division of units described above is merely a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. The aforementioned units may or may not be physically separated. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of the embodiments of the present invention according to actual needs.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

[0053] 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, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A vehicle emergency towing system, characterized in that: Includes test vehicle (1), traction device (5), column (19), and quick untying device (3); The towing device (5) is connected to the trailer hook (8) at the rear of the test vehicle (1) for towing the test vehicle (1) out in an emergency. The quick untying device (3) includes a hook releaser (7) that unlocks in case of an emergency; The column (19) secures the test vehicle (1) to the test site via the unhooking device (7); It also includes a damping guide device (2), which is connected to the trailer hook (8) at the front end of the test vehicle (1); The damping guide device (2) is used to provide damping force when the test vehicle (1) is towed out, so as to ensure that the test vehicle (1) moves in a straight line. The pillar (19) located on the front side of the test vehicle (1) is used to secure the vehicle with ropes and a release device (7); The pillar (19) located on the side and rear of the test vehicle (1) is used to fix the vehicle by means of a swing arm and a hook-up device (7); The swing arm is used to retract the unhook (7) to both sides after the unhook (7) is unlocked; The swing arm includes a large swing arm (20) and a small swing arm (21). The small swing arm (21) is connected to the fixed hook (9) of the unhooking device (7) by a rope. The small swing arm (21) is connected to the large swing arm (20) by a torsion spring. The large swing arm (20) is connected to the pillar (19) located at the rear of the side of the vehicle by a torsion spring. The quick untying device (3) includes two cylinders (6), which are connected to the unhooking handle (11) of the unhooking device (7) via ropes. The detachable hook (12) of the unhooking device (7) is connected to the hook. The unhooking device (7) includes a fixed hook (9), an unhooking device bracket (10), an unhooking handle (11), a detachable hook (12), a swing block (13), a swing block shaft (14), a connecting block (15), a fixed pin (16), a connecting block shaft (17), and an unhooking handle shaft (18). The swing block (13) is rotatably connected to the hook release bracket (10) on the lower side. One end of the connecting block (15) is rotatably connected to the upper side of the swing block (13) via the swing block pivot (14), and the other end is rotatably connected to the hook release handle (11) via the connecting block pivot (17). The root of the hook release handle (11) is rotatably connected to the hook release bracket (10) via the hook release handle pivot (18). The head of the hook release handle (11) is connected to the cylinder (6) via a rope. A fixing pin (16) is also provided between the connecting block (15) and the hook release handle (11). The lifting ring of the fixing pin (16) is connected to a manual / automatic pin pulling structure. The traction device (5) includes a traction motor (23), a traction rope turntable (24), a reducer (25), and a traction system bracket (26). The traction system bracket (26) is fixed on the ground, and the traction rope extending from the traction rope turntable (24) is connected to the trailer hook (8) at the rear end of the test vehicle (1). The trailer hook (8) at the front of the test vehicle (1) is connected to the traction rope of the damping guide device (2). The damping guide device (2) is fixed to the ground through the guide device bracket (27). A pneumatic brake damper (29) is placed on the rope release turntable (28). The pneumatic brake damper (29) is connected to compressed air to provide damping force throughout the process. The usage method is as follows: The test vehicle (1) is fixed to the column (19) by a rope or a retraction swing arm (4) via a quick unbinding device (3) to ensure that the vehicle is fixed without conflict during the indoor performance test or maintenance of the vehicle. In the event of a fire or excessive temperature warning, the unhooking device (7) is unlocked by triggering cylinder (6), releasing the test vehicle (1). Then, the unhooking device (7) is withdrawn to both sides by the withdrawal swing arm (4) to prevent the unhooking device (7) from getting caught under the vehicle. Subsequently, the traction device (5) is activated to drag the test vehicle (1) out of the building. During the dragging process, the pneumatic brake damper (29) of the damping guide device (2) is in a braking state to maintain the damping force to restrain the test vehicle (1) and make it move in a straight line.

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