A traction seat assembly with integrated buffer function
By combining gas damping with springs in a dual buffer structure and precise positioning installation, the problem of insufficient buffering performance in existing technologies is solved, achieving efficient buffering and stable connection of the traction seat assembly, and improving the safety and reliability of traction operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 湖北富沃特汽车科技有限公司
- Filing Date
- 2025-08-22
- Publication Date
- 2026-06-30
AI Technical Summary
The existing traction seat assembly has insufficient buffering performance, and mostly relies on a single spring structure, which has limited buffering effect and slow response, leading to loose connections and safety hazards.
The system employs a gas damping buffer formed by the combination of an air box and a piston block, combined with the elastic buffer of a spring, to form a double buffer structure. Precise positioning and fixation are achieved through positioning and installation components, ensuring the stability and safety of the installation.
It significantly improves the cushioning effect, reduces wear, prevents loosening of connections, enhances the stability and safety of traction operations, and ensures the accuracy and reliability of installation.
Smart Images

Figure CN224427007U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of traction equipment technology, specifically a traction seat assembly with integrated buffer function. Background Technology
[0002] The drawbar assembly is a critical component connecting the tractor unit and the towed equipment (such as trailers, construction machinery, etc.) during towing operations. Its performance directly affects the stability and safety of the towing operation and the service life of related equipment. In actual towing processes, the starting and braking of the tractor unit, as well as road bumps, can cause instantaneous impact forces between the tractor unit and the towed equipment. If the drawbar assembly lacks effective cushioning, long-term impact forces will not only accelerate the wear of the drawbar and related connecting components, but may also lead to loose connections and even safety accidents.
[0003] Currently, some traction seat assemblies on the market have certain connection functions, but their buffering performance is insufficient. They mostly rely on a single spring structure for buffering, which has limited buffering effect and slow response.
[0004] To address these issues, this invention provides a traction seat assembly with integrated buffer function. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a traction seat assembly with integrated buffer function, thus solving the aforementioned problems.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an integrated buffer seat assembly, comprising a base, with a buffer component on the top of the base; a positioning and mounting component on one side of the buffer component; the buffer component includes slide rails, two of which are fixedly connected to the top of the base, with sliders slidably connected to the outer sides of the two slide rails; an air box is fixedly connected to the top of the base, with a piston block slidably connected to the inner wall of the air box; a guide rod is fixedly connected to one side of the piston block, with one end of the guide rod fixedly connected to one side of the slider; a sealing block is fixedly connected to the inner wall of one end of the air box, with an air vent inside the sealing block; a limit frame is fixedly connected to the inner wall of the air box; and a stop block is fixedly connected to the top of the base, the stop block being located on the sliding path of the slider between the two slide rails to prevent the slider from disengaging from the slide rails.
[0007] Furthermore, a spring is fixedly connected to one side of the sealing block, and one end of the spring is fixedly connected to one side of the piston block.
[0008] The above technical solution is used to reset the piston block.
[0009] Furthermore, the buffer assembly also includes a mounting plate, the top of which is fixedly connected to the traction seat body.
[0010] The above technical solution is used to connect the towing seat body to the semi-trailer.
[0011] Furthermore, a reinforcing block is fixedly connected to the top of the base, and the reinforcing block abuts against one side of the sealing block.
[0012] The above technical solution is used to reinforce the sealing block.
[0013] Furthermore, the positioning and mounting assembly includes a protrusion fixedly connected to both sides of the mounting plate, and the positioning and mounting assembly also includes a reinforcing bolt, which is threadedly connected to the interior of both the protrusion and the slider.
[0014] The above technical solution is used to fix the mounting plate.
[0015] Furthermore, a positioning block is fixedly connected to the bottom of the mounting plate, and a positioning hole is opened inside the slider, into which the positioning block is inserted.
[0016] The above technical solution is used to quickly locate the fixed position of the mounting plate.
[0017] Beneficial effects
[0018] This utility model provides a traction seat assembly with integrated buffer function. Compared with the prior art, it has the following advantages:
[0019] 1. This traction seat assembly with integrated buffer function utilizes a buffer component, employing a gas damping buffer formed by the cooperation of an air box and a piston block, combined with the elastic buffering of springs, to form a dual buffer structure. When subjected to impact force, the slider slides along the slide rail, driving the guide rod and piston block to move. The gas in the air box is discharged through the air outlet, generating damping force, while the spring synchronously extends and retracts, generating elastic force. The combined effect of these two components can quickly absorb the impact force, significantly improving the buffering effect and reducing wear on the traction seat and related components. In the positioning and installation component, the insertion and engagement of the positioning block and positioning socket achieves precise positioning of the mounting plate and the slider, ensuring accurate alignment during installation. The reinforcing bolts penetrate the protrusion and connect to the slider with threads, firmly fixing the mounting plate to the slider, effectively preventing loosening of the connection due to vibration and improving the overall installation stability.
[0020] 2. This integrated buffer traction seat assembly features a limiting frame that restricts the piston block's movement range, preventing it from detaching from the air chamber or colliding with other components due to excessive movement. A stop block located on the sliding path of the slider between the two slide rails effectively prevents the slider from detaching from the slide rails during sliding, further ensuring the stability and safety of the buffer assembly. A reinforcing block abuts against one side of the sealing block, enhancing its structural strength and preventing deformation under gas pressure, thus ensuring the air chamber's sealing performance. The sliding cooperation between the slide rails and the slider guides the displacement during the buffering process, ensuring smooth slider movement and preventing offset or jamming, thereby improving the reliability of the buffer assembly. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0022] Figure 1 This is a perspective view of the external structure of this utility model;
[0023] Figure 2 This is a side view of the structure of this utility model;
[0024] Figure 3 This is a top view of the structure of this utility model after removing the air box and the baffle;
[0025] Figure 4 This is a partial structural side view of this utility model.
[0026] In the diagram: 1. Base; 2. Buffer assembly; 21. Slide rail; 22. Slider; 23. Mounting plate; 24. Traction seat body; 25. Air box; 26. Limiting frame; 27. Guide rod; 28. Piston block; 29. Sealing block; 210. Spring; 211. Air outlet; 212. Reinforcing block; 213. Stop block; 3. Positioning and mounting assembly; 31. Protrusion; 32. Reinforcing bolt; 33. Positioning block; 34. Positioning socket. Detailed Implementation
[0027] It should be noted that in the description of the embodiments of this application, the terms "front," "rear," "left," "right," "up," "down," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0028] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.
[0029] Reference Figures 1 to 4 This application provides a traction seat assembly with integrated buffer function, including a base 1. The base 1 is made of high-strength alloy material to ensure that the overall structure has sufficient load-bearing capacity. A buffer component 2 is provided on the top of the base 1, which is used to absorb the impact force during the traction process; a positioning and mounting component 3 is provided on one side of the buffer component 2, which is used to achieve precise installation and fixation of the traction seat body 24.
[0030] The buffer assembly 2 includes a slide rail 21, which is made of wear-resistant steel and has a smooth surface to reduce sliding friction. There are two slide rails 21, both of which are welded and fixed to the top of the base 1. The two slide rails 21 are parallel to each other and symmetrically distributed. A slider 22 is slidably connected to the outer side of the two slide rails 21. The inner wall of the slider 22 is in close contact with the outer wall of the slide rail 21 to ensure stability during sliding.
[0031] An air box 25 is bolted to the top of the base 1. The air box 25 is a hollow cuboid structure. A piston block 28 is slidably connected to the inner wall of the air box 25. A sealing ring is fitted on the outer wall of the piston block 28 to ensure a tight seal with the inner wall of the air box 25. A guide rod 27 is bolted to one side of the piston block 28. The guide rod 27 is made of high-strength steel, and one end of it is welded to one side of the slider 22, allowing it to move synchronously with the slider 22.
[0032] A sealing block 29, made of steel plate, is welded and fixed to the inner wall of one end of the gas box 25. An air outlet 211 is provided inside the sealing block 29. The diameter of the air outlet 211 can be designed according to the required damping force to control the gas discharge speed. A limit frame 26 is welded and fixed to the inner wall of the gas box 25. The limit frame 26 is located on the side of the piston block 28 away from the sealing block 29, and can limit the maximum movement distance of the piston block 28.
[0033] A stop 213 is fixedly connected to the top of the base 1 by welding. The stop 213 is made of high-strength steel and is located between the two slide rails 21 and on the sliding path of the slider 22. When the slider 22 slides away from the air box 25 to the limit position, the stop 213 can block the slider 22 from continuing to move and prevent the slider 22 from leaving the slide rail 21.
[0034] A spring 210 is welded and fixed to one side of the sealing block 29. The spring 210 is a high-strength compression spring, one end of which is welded and fixed to one side of the piston block 28. Under natural conditions, it is in a slightly compressed state, providing initial elastic support for the piston block 28.
[0035] The buffer assembly 2 also includes a mounting plate 23, which is made of steel plate and has a traction seat body 24 fixedly connected to its top by bolts. The traction seat body 24 is used to cooperate with the connecting parts of the towed equipment to achieve traction connection.
[0036] A reinforcing block 212 is welded and fixed to the top of the base 1. The reinforcing block 212 adopts a triangular steel structure and abuts against one side of the sealing block 29 to provide lateral support for the sealing block 29 and prevent it from deforming under gas pressure.
[0037] The positioning and mounting assembly 3 includes a protrusion 31, which is welded and fixed to both sides of the mounting plate 23. The protrusion 31 has threaded holes inside. The positioning and mounting assembly 3 also includes a reinforcing bolt 32, which is a high-strength bolt that is threadedly connected to the internal threaded holes of both the protrusion 31 and the slider 22. By tightening the reinforcing bolt 32, the mounting plate 23 and the slider 22 can be firmly fixed.
[0038] A positioning block 33 is welded and fixed to the bottom of the mounting plate 23. The positioning block 33 is a cuboid structure. The slider 22 has a positioning hole 34 that matches the positioning block 33. The positioning block 33 is inserted into the positioning hole 34 to achieve precise alignment between the mounting plate 23 and the slider 22.
[0039] All electrical devices in this plan are powered by an external power source.
[0040] Working principle: When the integrated buffer function of the traction seat assembly is working, the traction seat body 24 cooperates with the connecting parts of the towed equipment to realize the connection between the tractor and the towed equipment.
[0041] When an impact force occurs during starting, braking, or road bumps during traction, the impact force is transmitted to the mounting plate 23 through the traction seat body 24. The mounting plate 23 drives the slider 22 to slide along the slide rail 21. When the slider 22 moves, it pushes the piston block 28 to slide inside the air box 25 through the guide rod 27. If the impact force causes the slider 22 to move closer to the air box 25, the piston block 28 will compress the gas inside the air box 25. The gas will be slowly discharged through the vent 211 on the sealing block 29, generating a gas damping force to hinder the movement of the piston block 28. At the same time, the piston block 28 compresses the spring 210, and the spring 210 generates a reverse elastic force, which, together with the gas damping force, absorbs the impact force.
[0042] If the impact force disappears, the elastic restoring force of the spring 210 pushes the piston block 28 to move in the opposite direction, causing the guide rod 27 and the slider 22 to reset. At this time, external gas enters the air box 25 through the air outlet 211 to replenish the internal air pressure and prepare for the next buffering. The limit frame 26 will limit the maximum movement distance of the piston block 28 when it resets to prevent the piston block 28 from leaving the air box 25; and when the slider 22 slides to its limit position away from the air box 25 during the reset process, the stop block 213 will block the slider 22 from continuing to move to prevent the slider 22 from leaving the slide rail 21.
[0043] During installation, first align the positioning block 33 at the bottom of the mounting plate 23 with the positioning hole 34 on the slider 22 and insert it to achieve precise positioning of the mounting plate 23 and the slider 22; then pass the reinforcing bolt 32 through the threaded hole of the protrusion 31 and the slider 22 and tighten it to make the mounting plate 23 and the slider 22 firmly connected and prevent loosening caused by vibration.
[0044] The reinforcing block 212 is always pressed against one side of the sealing block 29 to provide support for the sealing block 29, ensure the airtightness of the air box 25, and ensure the stable operation of the gas damping buffer function.
[0045] Through the synergistic effect of the above structures, the traction seat assembly achieves efficient buffering, precise and stable installation, and reliable limiting of sliding components, effectively improving the safety and reliability of traction operations.
[0046] 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.
[0047] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A traction seat assembly with integrated buffer function, comprising a base (1), characterized in that: A buffer assembly (2) is provided on the top of the base (1); a positioning and mounting assembly (3) is provided on one side of the buffer assembly (2); the buffer assembly (2) includes a slide rail (21), two slide rails (21) are fixedly connected to the top of the base (1), and sliders (22) are slidably connected to the outer sides of the two slide rails (21); an air box (25) is fixedly connected to the top of the base (1), and a piston block (28) is slidably connected to the inner wall of the air box (25); a guide is fixedly connected to one side of the piston block (28). The guide rod (27) is fixedly connected to one side of the slider (22). A sealing block (29) is fixedly connected to the inner wall of one end of the air box (25). An air outlet (211) is opened inside the sealing block (29). A limit frame (26) is fixedly connected to the inner wall of the air box (25). A stop block (213) is fixedly connected to the top of the base (1). The stop block (213) is located on the sliding path of the slider (22) between the two slide rails (21) to prevent the slider (22) from leaving the slide rail (21).
2. The traction seat assembly with integrated buffer function according to claim 1, characterized in that: A spring (210) is fixedly connected to one side of the sealing block (29), and one end of the spring (210) is fixedly connected to one side of the piston block (28).
3. The traction seat assembly with integrated buffer function according to claim 1, characterized in that: The buffer assembly (2) also includes a mounting plate (23), the top of which is fixedly connected to a traction seat body (24).
4. The traction seat assembly with integrated buffer function according to claim 1, characterized in that: A reinforcing block (212) is fixedly connected to the top of the base (1), and the reinforcing block (212) abuts against one side of the sealing block (29).
5. The traction seat assembly with integrated buffer function according to claim 3, characterized in that: The positioning and mounting assembly (3) includes a protrusion (31) which is fixedly connected to both sides of the mounting plate (23). The positioning and mounting assembly (3) also includes a reinforcing bolt (32) which is threadedly connected to the inside of the protrusion (31) and the slider (22).
6. The traction seat assembly with integrated buffer function according to claim 3, characterized in that: The bottom of the mounting plate (23) is fixedly connected to a positioning block (33), and the slider (22) has a positioning hole (34) inside, and the positioning block (33) is inserted into the positioning hole (34).