Quick connecting and locking device of field vehicle rescue combiner

Abstract

The invention discloses a quick connecting and locking device of a field vehicle rescue combiner, and relates to the technical field of field vehicle rescue, the quick connecting and locking device comprises a fixing sleeve, a traction assembly and a connecting assembly, the fixing sleeve is fixed on a vehicle in advance, and the fixing sleeve and the traction assembly are connected and locked through the connecting assembly; the connecting assembly and the traction assembly are provided with a buffering assembly. The device has the technical effects that by arranging the traction assembly and the connecting assembly, the traction assembly and the fixing sleeve can be quickly connected and locked, the vehicle can be conveniently rescued, the rescue efficiency is improved, and by arranging the buffering assembly, the homeopathic traction force transmitted to the connecting assembly by the traction assembly can be buffered; the connecting assembly and the rescued vehicle are prevented from being instantaneously subjected to large impact force, and the service life of the device is prolonged.

Description

Technical Field

[0001] This invention relates to the field of off-road vehicle rescue technology, specifically a quick connection and locking device for an off-road vehicle rescue assembly. Background Technology

[0002] In the wild, vehicles can easily get stuck in mud, sand, or other difficult conditions, rendering them unable to move. Traditional rescue methods usually require towing or other rescue equipment, but these methods often require a long preparation time, are complex to operate, and are inefficient. In addition, the connection and locking between the rescue equipment and the vehicle being rescued is also a critical issue during the rescue process. If the connection is not secure or the locking is unreliable, it may lead to rescue failure or even safety accidents. Furthermore, the connection and locking between the rescue combiner and the vehicle is inconvenient to fix, and it cannot automatically lock according to the needs of connection and pulling during the pulling process. It also cannot automatically adapt to changes in traction force to adjust the degree of locking fixation, making it easy for the locking connection to break and separate during the vehicle pulling process.

[0003] To address the aforementioned issues, Chinese Patent CN120245640A discloses a quick-connect automatic locking device and its operating method for a field vehicle rescue assembly. The device includes a first locking connection part, a tension sensor, a traction rope, and a second locking connection part. The tension sensor is fixedly connected to the inner ends of both the first and second locking connection parts. Both ends of the traction rope are fixedly connected to the tension sensor fixedly mounted on the first and second locking connection parts, respectively. The first and second locking connection parts have identical structures. Each part includes a connection locking detection body and a connection auxiliary reinforcement body. The connection auxiliary reinforcement body is disposed on the connection locking detection body. The connection locking detection body includes a detection connection device and a self-locking device, with the detection connection device disposed at the end of the self-locking device.

[0004] Regarding the aforementioned technologies, the inventors have discovered at least the following problems: when using the aforementioned technologies for connection and locking, a large number of bolts are required for connection and fixation, making the operation process very cumbersome and seriously affecting rescue efficiency.

[0005] Therefore, a quick-connect locking device for a field vehicle rescue assembly is now proposed. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this invention provides a quick connection and locking device for a field vehicle rescue assembly, which solves the problem that the above-mentioned technologies require a large number of bolts for connection and fixing, making the operation process very cumbersome and seriously affecting rescue efficiency.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the present invention provides the following technical solution:

[0010] A quick connection and locking device for a field vehicle rescue assembly includes a fixing sleeve, a towing assembly, and a connecting assembly. The fixing sleeve is pre-fixed to the vehicle, and the fixing sleeve and the towing assembly are connected and locked together through the connecting assembly.

[0011] The connecting component and the traction component are equipped with a buffer component.

[0012] By adopting the above technical solution, and by setting up a traction component and a connecting component, the traction component can be quickly connected and locked to the fixed sleeve, which facilitates vehicle rescue and improves rescue efficiency. By setting up a buffer component, the traction force transmitted from the traction component to the connecting component can be buffered, avoiding the connecting component and the rescued vehicle from being subjected to a large impact force instantly, and extending the service life of the device.

[0013] Optionally, a first mounting plate is fixedly connected to one side of the fixing sleeve, and a locking hole is provided on the side wall of the fixing sleeve. There are four locking holes, which are distributed in a ring on the peripheral wall of the fixing sleeve.

[0014] By adopting the above technical solution, and by setting the first mounting plate, the first mounting plate can be fixed to the vehicle using bolts, thereby pre-fixing the fixing sleeve to the vehicle.

[0015] Optionally, the traction assembly includes a traction column, a sector block, a U-shaped traction block, and a traction rope. The sector block is fixedly connected to one end of the traction column, the U-shaped traction block is movably connected to one side of the sector block, and the traction rope is fixedly connected to one side of the sector block.

[0016] By adopting the above technical solution, the other end of the tow rope can be connected to rescue equipment or a rescue vehicle. The tow rope is pulled by the rescue equipment or the rescue vehicle, which in turn pulls the U-shaped tow block, which in turn pulls the fan-shaped block, which in turn pulls the tow column. The tow column then pulls the vehicle being rescued through the connecting assembly, thereby carrying out the rescue.

[0017] Optionally, the sector block has an arc-shaped hole that runs vertically through it, and a cylinder slides through the arc-shaped hole. Both ends of the cylinder are fixedly connected to the U-shaped traction block.

[0018] By adopting the above technical solution, when the U-shaped traction block pulls the sector block, the cylinder can slide along the arc hole. When an angle is formed between the traction rope and the traction column, the U-shaped traction block and the sector block can produce an adaptive angle change, thus minimizing the bending of the traction rope.

[0019] Optionally, the connecting assembly includes a connecting block, a connecting post, a locking block, a screw, a screw sleeve, a connecting rod, and a driving component for driving the screw to rotate. The connecting block is integrally disposed at one end of the connecting post, and the connecting post is adapted to the fixing sleeve. The locking block is slidably mounted on the peripheral wall of the connecting post. There are four locking blocks, which are evenly distributed on the periphery of the connecting post. Both the connecting block and the connecting post are hollow structures. The screw is rotatably mounted inside the connecting post. The driving component is disposed inside the connecting block. The screw sleeve is sleeved on the screw and threadedly connected to the screw. The connecting rod is hinged between the screw sleeve and the locking block.

[0020] By adopting the above technical solution, when vehicle rescue is needed, simply hold the connecting block, insert the connecting post into the fixing sleeve, and then operate the drive component with a tool to make the drive component drive the screw to rotate, causing the screw to drive the screw sleeve to slide along the screw. When the screw sleeve slides, the connecting rod will rotate because it is hinged to the screw sleeve. Through the rotation of the connecting rod, the other end of the connecting rod and the locking block will also rotate, thereby driving the locking block to extend outward from the peripheral wall of the connecting post, so that the locking block is inserted into the corresponding locking hole, locking the connecting post and the fixing sleeve together. This allows the traction component to be quickly connected and locked to the fixing sleeve, facilitating vehicle rescue and improving rescue efficiency.

[0021] Optionally, the driving component includes a nut, a worm, and a worm wheel. The nut is fixedly installed at the end of the worm, the worm is rotatably installed inside the connecting block, the worm wheel is meshed with the worm, and the worm wheel is fixedly installed at one end of the nut.

[0022] By adopting the above technical solution, during operation, a tool can be used to rotate the nut. The rotation of the nut drives the worm to rotate, which in turn drives the worm wheel to rotate, which in turn drives the screw to rotate, making the operation convenient.

[0023] Optionally, a receiving groove is provided on one side of the connecting block, the nut is embedded in the receiving groove, and a cover plate is hinged to the opening of the receiving groove. A magnetic block is fixedly connected to one side of the cover plate, and the cover plate is magnetically fixed to the connecting block through the magnetic block.

[0024] By adopting the above technical solution, when the nut does not need to be operated, the cover plate can be rotated to cover the receiving groove, and the cover plate can be magnetically fixed by the magnetic block. This allows the cover plate to cover and protect the nut in the receiving groove, preventing the nut from being hit by external objects and from being contaminated by dirt and other impurities. This keeps the nut clean when it needs to be operated, avoiding unnecessary trouble.

[0025] Optionally, a slide rail is fixedly connected to the inner wall of the connecting column, and guide rods are fixedly connected to both sides of the threaded sleeve, with the end of the guide rod away from the threaded sleeve slidably connected to the slide rail.

[0026] By adopting the above technical solution, since the guide rod can only slide along the slide rail, when the screw is rotated, the cooperation between the slide rail and the guide rod can guide the screw sleeve, so that the screw sleeve can only slide along the screw.

[0027] Optionally, four annularly distributed guide blocks are provided on the outer circumference of the connecting column, and four locking blocks are correspondingly distributed on the four guide blocks. Four annularly distributed guide grooves are provided on the inner circumference of the fixing sleeve, and the guide blocks slide with the guide grooves.

[0028] By adopting the above technical solution, when the connecting column needs to be inserted into the fixing sleeve, the staff can observe the guide block, align the guide block with the guide groove, and then insert the connecting column into the fixing sleeve. At this time, the guide block will slide along the guide groove, thereby guiding the connecting column. When the connecting column is fully inserted into the fixing sleeve, the locking block can be aligned with the locking hole, thus making the subsequent locking operation smoother.

[0029] Optionally, the buffer assembly includes a first movable column, a second movable column, a second connecting plate, a sleeve, a spring, a limiting plate, and a damper. The first movable column is fixedly connected to the side of the connecting block away from the connecting column. The second connecting plate is fixedly connected to one end of the second movable column. The second movable column is fixedly connected to the traction column through the second connecting plate. The sleeve is sleeved between the first and second movable columns. There are two springs, each sleeved on the first and second movable columns respectively. There are two limiting plates, each fixedly connected to one opposite end of the first and second movable columns respectively. One end of each spring abuts against the limiting plate. The damper is fixedly installed between the two limiting plates. There are multiple dampers, which are distributed in a ring between the two limiting plates.

[0030] By adopting the above technical solution, when the towing column tows the vehicle being rescued through the connecting assembly, the second movable column is subjected to the traction force of the towing column, and the first movable column is subjected to the reaction force of the vehicle being rescued. At this time, the first and second movable columns will be moved away from each other by force. The first and second movable columns drive the two limit plates to separate from each other, so that the spring is compressed and undergoes elastic deformation, and the damper will be stretched under force. Through the deformation of the spring and the damper, the traction force transmitted from the towing column to the connecting assembly can be buffered, avoiding the connecting assembly and the vehicle being rescued from being subjected to a large impact force instantly, and extending the service life of the device.

[0031] (III) Beneficial Effects

[0032] Compared with the prior art, the present invention provides a quick connection and locking device for a field vehicle rescue assembly, which has the following advantages:

[0033] 1. This invention, by setting up a connecting component, allows for quick connection and locking of the traction component to the fixed sleeve when vehicle rescue is needed. The connecting block is held, and the connecting post is inserted into the fixed sleeve. Then, the driving component is operated using a tool to rotate the screw, causing the screw to slide along the screw. As the screw slides, the connecting rod rotates due to the hinge between it and the screw sleeve. This rotation causes the other end of the connecting rod and the locking block to rotate, extending the locking block outward from the peripheral wall of the connecting post and inserting it into the corresponding locking hole. This locks the connecting post and the fixed sleeve together, enabling a quick and easy connection between the traction component and the fixed sleeve, facilitating vehicle rescue and improving rescue efficiency.

[0034] 2. By incorporating a buffer component, when the traction column pulls the vehicle being rescued via the connecting assembly, the second movable column is pulled by the traction force of the traction column, while the first movable column is pulled by the reaction force of the vehicle being rescued. At this time, the first and second movable columns will move away from each other due to the forces acting on them. The first and second movable columns will cause the two limiting plates to separate from each other, resulting in the spring being compressed and undergoing elastic deformation. The damper will be stretched under force. Through the deformation of the spring and the damper, the traction force transmitted from the traction column to the connecting assembly can be buffered, preventing the connecting assembly and the vehicle being rescued from being subjected to a large impact force instantaneously, thus extending the service life of the device. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0036] Figure 2 This is a schematic diagram of the split structure of the present invention.

[0037] Figure 3 This is a schematic diagram of the structure of the connecting component of the present invention.

[0038] Figure 4 This is a cross-sectional structural diagram of the connecting component of the present invention.

[0039] Figure 5 This is a cross-sectional structural diagram of the buffer component of the present invention.

[0040] In the picture:

[0041] 1. Fixing sleeve; 11. First mounting plate; 12. Locking hole; 13. Guide groove;

[0042] 2. Traction assembly; 21. Traction column; 22. Sector block; 23. Traction block; 24. Traction rope; 25. Arc-shaped hole; 26. Cylinder;

[0043] 3. Connecting assembly; 31. Connecting block; 32. Connecting post; 33. Locking block; 34. Screw; 35. Screw sleeve; 36. Connecting rod; 37. Driving component; 371. Nut; 372. Worm gear; 373. Worm wheel; 38. Receiving groove; 39. Cover plate; 310. Magnetic block; 311. Slide rail; 312. Guide rod; 313. Guide block;

[0044] 4. Buffer assembly; 41. First movable column; 42. Second movable column; 43. Second connecting plate; 44. Sleeve; 45. Spring; 46. Limiting plate; 47. Damper. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more unless otherwise explicitly specified.

[0048] This invention provides a technical solution:

[0049] Please refer to Figure 1-5 A quick-connection locking device for a field vehicle rescue assembly includes a fixing sleeve 1, a traction component 2, and a connecting component 3. The fixing sleeve 1 is pre-fixed to the vehicle. The fixing sleeve 1 and the traction component 2 are connected and locked through the connecting component 3. A first mounting plate 11 is fixedly connected to one side of the fixing sleeve 1. By setting the first mounting plate 11, the first mounting plate 11 can be fixed to the vehicle with bolts, thereby pre-fixing the fixing sleeve 1 to the vehicle.

[0050] The fixed sleeve 1 has four locking holes 12 on its side wall, arranged in a ring around the periphery of the fixed sleeve 1. The connecting assembly 3 includes a connecting block 31, a connecting post 32, a locking block 33, a screw 34, a screw sleeve 35, a connecting rod 36, and a driving component 37 for driving the screw 34 to rotate. The connecting block 31 is integrally mounted on one end of the connecting post 32, which is adapted to the fixed sleeve 1. The locking blocks 33 are slidably mounted on the periphery of the connecting post 32, and there are four locking blocks 33 evenly distributed around the periphery of the connecting post 32. Both the connecting block 31 and the connecting post 32 are hollow structures. The screw 34 is rotatably mounted inside the connecting post 32, and is coaxially arranged with the connecting post 32. The driving component 37 is located inside the connecting block 31. The screw sleeve 35 is sleeved on the screw 34 and threadedly connected to the screw 34. The connecting rod 36... The connecting rod 36 is hinged between the threaded sleeve 35 and the locking block 33. By setting the connecting assembly 3, when vehicle rescue is needed, simply hold the connecting block 31, insert the connecting post 32 into the fixing sleeve 1, and then operate the driving member 37 with a tool to make the driving member 37 drive the screw 34 to rotate, so that the screw 34 drives the threaded sleeve 35 to slide along the screw 34. When the threaded sleeve 35 slides, the connecting rod 36 will rotate because it is hinged to the threaded sleeve 35. Through the rotation of the connecting rod 36, the other end of the connecting rod 36 and the locking block 33 will also rotate, thereby driving the locking block 33 to extend outward from the peripheral wall of the connecting post 32, so that the locking block 33 is inserted into the corresponding locking hole 12, and the connecting post 32 and the fixing sleeve 1 are locked together, so that the traction assembly 2 and the fixing sleeve 1 can be quickly connected and locked, which facilitates vehicle rescue and improves rescue efficiency.

[0051] Specifically, the driving component 37 includes a nut 371, a worm 372, and a worm wheel 373. The nut 371 can be a general-purpose hexagonal nut, which is fixedly installed at the end of the worm 372. The worm 372 is rotatably installed inside the connecting block 31. The worm wheel 373 is meshed with the worm 372 and is fixedly installed at one end of the screw 34. By setting the driving component 37, the nut 371 can be rotated using a tool during operation. The rotation of the nut 371 drives the worm 372 to rotate, which in turn drives the worm wheel 373 to rotate, thus causing the screw 34 to rotate. The operation is convenient.

[0052] Furthermore, a receiving groove 38 is provided on one side of the connecting block 31, and the nut 371 is embedded in the receiving groove 38. A cover plate 39 is hinged to the opening of the receiving groove 38, and a magnetic block 310 is fixedly connected to one side of the cover plate 39. The cover plate 39 is magnetically fixed to the connecting block 31 through the magnetic block 310. By setting the receiving groove 38, the cover plate 39, and the magnetic block 310, when the nut 371 does not need to be operated, the cover plate 39 can be rotated to cover the receiving groove 38, and the magnetic block 310 is used to magnetically fix the cover plate 39. Thus, the cover plate 39 covers and protects the nut 371 in the receiving groove 38, which can prevent the nut 371 from being hit by external objects and also prevent the nut 371 from being contaminated by dirt and other impurities, so that the nut 371 can be kept clean when operation is required, avoiding unnecessary trouble.

[0053] Furthermore, a slide rail 311 is fixedly connected to the inner wall of the connecting column 32, and guide rods 312 are fixedly connected to both sides of the screw sleeve 35. The end of the guide rod 312 away from the screw sleeve 35 is slidably connected to the slide rail 311. By setting the slide rail 311 and the guide rod 312, since the guide rod 312 can only slide along the slide rail 311, when the screw 34 is rotated, the cooperation between the slide rail 311 and the guide rod 312 can guide the screw sleeve 35, so that the screw sleeve 35 can only slide along the screw 34.

[0054] Furthermore, four annularly distributed guide blocks 313 are provided on the outer circumference of the connecting post 32, and four locking blocks 33 are correspondingly distributed on the four guide blocks 313. Four annularly distributed guide grooves 13 are provided on the inner circumference of the fixing sleeve 1. The guide blocks 313 slide in cooperation with the guide grooves 13. By setting the guide blocks 313 and guide grooves 13, when the connecting post 32 needs to be inserted into the fixing sleeve 1, the operator can observe the guide blocks 313, align the guide blocks 313 with the guide grooves 13, and then insert the connecting post 32 into the fixing sleeve 1. At this time, the guide blocks 313 will slide along the guide grooves 13, thereby guiding the connecting post 32. When the connecting post 32 is fully inserted into the fixing sleeve 1, the locking blocks 33 can be aligned with the locking holes 12, thus making the subsequent locking operation smoother.

[0055] Specifically, the traction assembly 2 includes a traction post 21, a sector block 22, a U-shaped traction block 23, and a traction rope 24. The sector block 22 is fixedly connected to one end of the traction post 21, the U-shaped traction block 23 is movably connected to one side of the sector block 22, and the traction rope 24 is fixedly connected to one side of the sector block 22. By setting up the traction assembly 2, the other end of the traction rope 24 can be connected to rescue equipment or a rescue vehicle. The rescue equipment or the rescue vehicle pulls the traction rope 24, causing the traction rope 24 to pull the U-shaped traction block 23, which in turn pulls the sector block 22, which in turn pulls the traction post 21. The traction post 21 then pulls the vehicle being rescued via the connecting assembly 3, thereby carrying out the rescue.

[0056] Furthermore, the inside of the sector block 22 is provided with an arc-shaped hole 25 that runs vertically through it. A cylinder 26 slides through the arc-shaped hole 25. Both ends of the cylinder 26 are fixedly connected to the U-shaped traction block 23. By setting the arc-shaped hole 25 and the cylinder 26, when the U-shaped traction block 23 pulls the sector block 22, the cylinder 26 can slide along the arc-shaped hole 25. When the traction rope 24 and the traction column 21 form an angle, the U-shaped traction block 23 and the sector block 22 can produce an adaptive angle change, so as to avoid the traction rope 24 from bending.

[0057] Furthermore, the connecting assembly 3 and the traction assembly 2 are provided with a buffer assembly 4. The buffer assembly 4 includes a first movable column 41, a second movable column 42, a second connecting plate 43, a sleeve 44, a spring 45, a limiting plate 46, and a damper 47. The first movable column 41 is fixedly connected to the side of the connecting block 31 away from the connecting column 32. The second connecting plate 43 is fixedly connected to one end of the second movable column 42. The second movable column 42 is fixedly connected to the traction column 21 through the second connecting plate 43. The sleeve 44 is sleeved between the first movable column 41 and the second movable column 42. There are two springs 45, which are respectively sleeved on the first movable column 41 and the second movable column 42. There are two limiting plates 46, which are respectively fixedly connected to the opposite ends of the first movable column 41 and the second movable column 42. One end of the spring 45 abuts against the limiting plate 46. The damper 47... Fixedly installed between two limiting plates 46, multiple dampers 47 are arranged in a ring between the two limiting plates 46. By setting the buffer assembly 4, when the traction column 21 pulls the rescued vehicle through the connecting assembly 3, the second movable column 42 is subjected to the traction force of the traction column 21, and the first movable column 41 is subjected to the reaction force of the rescued vehicle. At this time, the first movable column 41 and the second movable column 42 will be moved away from each other by force. The first movable column 41 and the second movable column 42 drive the two limiting plates 46 to separate from each other, so that the spring 45 is compressed and undergoes elastic deformation, and the damper 47 will be stretched by force. Through the deformation of the spring 45 and the damper 47, the traction force transmitted from the traction column 21 to the connecting assembly 3 can be buffered, avoiding the connecting assembly 3 and the rescued vehicle from being subjected to a large impact force instantly, and extending the service life of the device.

[0058] In practical use, the working principle of this invention is as follows:

[0059] First, the first mounting plate 11 can be fixed to the vehicle using bolts, thereby pre-fixing the mounting sleeve 1 to the vehicle.

[0060] When vehicle rescue is needed, simply take the connecting block 31 and insert the connecting post 32 into the fixing sleeve 1. When the connecting post 32 needs to be inserted into the fixing sleeve 1, the staff can observe the guide block 313, align the guide block 313 with the guide groove 13, and then insert the connecting post 32 into the fixing sleeve 1. At this time, the guide block 313 will slide along the guide groove 13, thereby guiding the connecting post 32.

[0061] When the connecting post 32 is fully inserted into the fixing sleeve 1, the locking block 33 is just aligned with the locking hole 12. Then, the cover plate 39 can be lifted to expose the nut 371 in the receiving groove 38. The nut 371 can then be rotated using a tool. The rotation of the nut 371 drives the worm gear 372 to rotate, which in turn drives the worm wheel 373 to rotate, which in turn drives the screw 34 to rotate. Since the guide rod 312 can only slide along the slide rail 311, when the screw 34 is rotated, the fit between the slide rail 311 and the guide rod 312 can... The threaded sleeve 35 serves as a guide, allowing it to slide only along the threaded rod 34. As the threaded sleeve 35 slides, the connecting rod 36 rotates due to its hinged connection with the threaded sleeve 35. This rotation causes the other end of the connecting rod 36 to rotate with the locking block 33, thereby enabling the locking block 33 to extend outward from the peripheral wall of the connecting post 32. This allows the locking block 33 to be inserted into the corresponding locking hole 12, locking the connecting post 32 and the fixed sleeve 1 together. This allows the traction assembly 2 and the fixed sleeve 1 to be quickly connected and locked.

[0062] After the operation is completed, the cover plate 39 can be rotated to cover the receiving groove 38, and the cover plate 39 is magnetically fixed by the magnetic block 310, so that the cover plate 39 covers and protects the nut 371 in the receiving groove 38, which can prevent the nut 371 from being hit by external objects, and can also prevent the nut 371 from being contaminated by dirt and other impurities, so that the nut 371 can be kept clean when operation is required, avoiding unnecessary trouble.

[0063] Then, the other end of the tow rope 24 is connected to the rescue equipment or the vehicle carrying out the rescue. The tow rope 24 is pulled by the rescue equipment or the vehicle carrying out the rescue, so that the tow rope 24 pulls the U-shaped tow block 23, the U-shaped tow block 23 pulls the fan-shaped block 22, the fan-shaped block 22 pulls the tow post 21, and the tow post 21 pulls the vehicle being rescued through the connecting assembly 3, thereby carrying out the rescue.

[0064] When the towing column 21 tows the vehicle being rescued via the connecting assembly 3, the second movable column 42 is subjected to the traction force of the towing column 21, and the first movable column 41 is subjected to the reaction force of the vehicle being rescued. At this time, the first movable column 41 and the second movable column 42 will be moved away from each other by force. The first movable column 41 and the second movable column 42 drive the two limiting plates 46 to separate from each other, so that the spring 45 is compressed and undergoes elastic deformation, and the damper 47 will be stretched by force. Through the deformation of the spring 45 and the damper 47, the traction force transmitted from the towing column 21 to the connecting assembly 3 can be buffered, so as to avoid the connecting assembly 3 and the vehicle being rescued being subjected to a large impact force instantly, and extend the service life of the device.

[0065] In summary, the quick-connect locking device of this off-road vehicle rescue assembly, through the setting of the connecting component 3, allows for easy connection when vehicle rescue is needed. Simply hold the connecting block 31, insert the connecting post 32 into the fixing sleeve 1, and then operate the driving component 37 with a tool. This drives the screw 34 to rotate, causing the screw 34 to slide along the screw sleeve 35. As the screw sleeve 35 slides, the connecting rod 36, hinged to the screw sleeve 35, rotates. This rotation causes the other end of the connecting rod 36 and the locking block 33 to rotate as well. This allows the locking block 33 to extend outward from the peripheral wall of the connecting post 32, inserting into the corresponding locking hole 12 and locking the connecting post 32 and the fixing sleeve 1. This enables the traction assembly 2 to quickly connect and lock with the fixing sleeve 1, facilitating vehicle rescue and improving rescue efficiency.

[0066] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0067] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A quick connecting and locking device of a field vehicle rescue combination, comprising a fixing sleeve (1), a traction assembly (2) and a connecting assembly (3), characterized in that: The fixed sleeve (1) is fixed on the vehicle in advance, and the fixed sleeve (1) is connected and locked with the traction assembly (2) through the connecting assembly (3). The connecting assembly (3) is provided with a buffer assembly (4) with the traction assembly (2).

2. A quick connect locking device for a field vehicle rescue assembly according to claim 1, wherein: One side of the fixed sleeve (1) is fixedly connected with a first mounting disc (11), and a plurality of locking holes (12) are formed in the side wall of the fixed sleeve (1). The number of the locking holes (12) is four, and the four locking holes (12) are annularly distributed on the peripheral wall of the fixed sleeve (1).

3. A quick connect locking device for a field vehicle rescue assembly according to claim 2, wherein: The traction assembly (2) comprises a traction column (21), a fan-shaped block (22), a U-shaped traction block (23) and a traction rope (24). The fan-shaped block (22) is fixedly connected to one end of the traction column (21). The U-shaped traction block (23) is movably connected to one side of the fan-shaped block (22). The traction rope (24) is fixedly connected to one side.

4. A quick connect locking device for a field vehicle rescue assembly according to claim 3, wherein: An arc-shaped hole (25) penetrating from top to bottom is formed in the fan-shaped block (22). A cylindrical column (26) is slidably penetrated in the arc-shaped hole (25). The two ends of the cylindrical column (26) are fixedly connected with the U-shaped traction block (23).

5. A quick connect locking device for a field vehicle rescue assembly according to claim 4 wherein: The connecting assembly (3) comprises a connecting block (31), a connecting column (32), a locking block (33), a screw rod (34), a screw sleeve (35), a connecting rod (36) and a driving member (37) for driving the screw rod (34) to rotate. The connecting block (31) is integrally arranged at one end of the connecting column (32). The connecting column (32) is matched with the fixed sleeve (1). The locking block (33) is slidably mounted on the peripheral wall of the connecting column (32). The number of the locking block (33) is four. The four locking blocks (33) are uniformly distributed on the peripheral side of the connecting column (32). The connecting block (31) and the connecting column (32) are both hollow structures. The screw rod (34) is rotatably mounted in the connecting column (32). The driving member (37) is arranged in the connecting block (31). The screw sleeve (35) is sleeved on the screw rod (34) and is in threaded connection with the screw rod (34). The connecting rod (36) is hingedly connected between the screw sleeve (35) and the locking block (33).

6. A quick connect locking device for a field vehicle rescue assembly according to claim 5, wherein: The driving member (37) comprises a screw cap (371), a worm (372) and a worm wheel (373). The screw cap (371) is fixedly mounted at the end of the worm (372). The worm (372) is rotatably mounted in the connecting block (31). The worm wheel (373) is in meshing connection with the worm (372), and is fixedly mounted at one end of the screw rod (34).

7. A quick connect locking device for a field vehicle rescue assembly according to claim 6, wherein: A containing groove (38) is formed in one side of the connecting block (31). The screw cap (371) is embedded in the containing groove (38). A cover plate (39) is hingedly connected at the opening of the containing groove (38). A magnetic attraction block (310) is fixedly connected to one side of the cover plate (39). The cover plate (39) is magnetically attracted and fixed with the connecting block (31) through the magnetic attraction block (310).

8. A quick connect locking device for a field vehicle rescue assembly according to claim 5, wherein: The inner side wall of the connecting column (32) is fixedly connected with a sliding rail (311), both sides of the screw sleeve (35) are fixedly connected with a guide rod (312), and the end, away from the screw sleeve (35), of the guide rod (312) is in sliding connection with the sliding rail (311).

9. A quick connect locking device for a field vehicle rescue assembly according to claim 5, wherein: Four guide blocks (313) are arranged on the outer circumference of the connecting column (32) in a ring shape, four locking blocks (33) are correspondingly arranged on the four guide blocks (313), four guide grooves (13) are arranged on the inner circumference of the fixed sleeve (1) in a ring shape, and the guide blocks (313) are in sliding fit with the guide grooves (13).

10. A quick connect locking device for a field vehicle rescue assembly according to claim 5, wherein: The buffer assembly (4) comprises a first movable column (41), a second movable column (42), a second connecting disc (43), a sleeve (44), springs (45), limiting plates (46) and dampers (47). The first movable column (41) is fixedly connected to one side of the connecting block (31) away from the connecting column (32). The second connecting disc (43) is fixedly connected to one end of the second movable column (42). The second movable column (42) is fixedly connected to the traction column (21) through the second connecting disc (43). The sleeve (44) is sleeved between the first movable column (41) and the second movable column (42). The springs (45) are two in number and are respectively sleeved on the first movable column (41) and the second movable column (42). The limiting plates (46) are two in number and are fixedly connected to opposite ends of the first movable column (41) and the second movable column (42). One end of the spring (45) is in abutment with the limiting plate (46). The dampers (47) are fixedly installed between the two limiting plates (46). The dampers (47) are multiple in number and are arranged in a ring shape between the two limiting plates (46).

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