A shock absorbing base frame structure for a zero gravity seat

Abstract

The utility model discloses a shock attenuation base frame structure of zero gravity seat relates to the technical field of seat aspect, and it is connected seat, the support board is connected with the car body bottom plate, the shock attenuation mechanism includes: the cylinder, the cylinder is installed on the support board, the sliding axle is connected with the sliding fit of cylinder, a pair of wedge block moving mechanism, the inside of vertical portion of sliding axle and the vertical board between the support board are symmetrically set up, a pair of buffer cylinder, install on the inner bottom wall of sliding axle, a pair of first buffer subassembly, symmetrically set up on the support board, a pair of second buffer subassembly, be located the interval between a pair of first buffer subassembly, and be connected with corresponding wedge block moving mechanism. The utility model discloses through the collaborative work of wedge block moving mechanism, first buffer subassembly and second buffer subassembly, realized multistage buffering effect, effectively absorbed and dispersed the impact that the seat received, improved the comfort and stability of seat.

Description

Technical Field

[0001] This utility model relates to the technical field of seating, specifically to a shock-absorbing base frame structure for a zero-gravity seat. Background Technology

[0002] During vehicle operation, uneven road surfaces cause bumps and vibrations, which are directly transmitted to the seats, affecting ride comfort. This is especially true for zero-gravity seats; to provide passengers with a more comfortable and stable riding experience, an effective shock-absorbing base frame structure is needed. Existing seat shock-absorbing base frame structures have certain shortcomings in terms of shock absorption, stability, and adaptability, making it difficult to meet the high shock absorption performance requirements of zero-gravity seats. Therefore, it is necessary to develop a new type of zero-gravity seat shock-absorbing base frame structure to solve these problems. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a shock-absorbing base frame structure for a zero-gravity seat, so as to improve the shock absorption effect of the seat when the car is bumpy, enhance the stability and adaptability of the seat, and thus provide passengers with a more comfortable riding experience.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A shock-absorbing base frame structure for a zero-gravity seat includes: A connecting seat, and a seat frame connected to the connecting seat; A support plate, which is connected to the vehicle chassis floor. The shock absorption mechanism includes: A cylindrical body, which is mounted on the support plate; A sliding shaft, which is slidably connected to the cylinder body; A pair of wedge moving mechanisms are symmetrically arranged between the inner side of the vertical part of the sliding shaft and the vertical plate of the support plate; A pair of buffer cylinders are installed on the inner bottom wall of the sliding shaft; A pair of first buffer components are symmetrically arranged on the support plate, and the first buffer components are connected to the corresponding buffer cylinders; A pair of second buffer components are symmetrically arranged on the support plate and located at the interval between the pair of first buffer components, and are connected to the corresponding wedge moving mechanism.

[0005] Furthermore, the wedge moving mechanism includes: The first wedge is fixedly connected to the inner bottom wall of the sliding shaft; The first guide rod is installed between the pair of upright plates; The first slider is slidably connected to the first guide rod. The second wedge is installed on the upper end of the first slider and can slide with the first wedge.

[0006] Furthermore, the wedge moving mechanism also includes: The connecting rod is connected to the lower end of the first slider and is in contact with the moving rod of the corresponding second buffer assembly; A first compression spring presses against the first slider and the corresponding upright plate.

[0007] Furthermore, the first buffer component includes: Piston cylinder fixed to the support plate; A pair of fixing plates are symmetrically installed on the outer periphery of the piston cylinder; A piston that is slidably connected to the inner wall of the piston cylinder; A piston rod, which is fixedly connected to the piston and extends upward through the piston cylinder; An elastic head is mounted on the upper end of the piston rod; The pressure block is connected to the extension rod of the buffer cylinder via a connecting block, and the elastic head presses against the bottom surface of the pressure block.

[0008] Furthermore, a second compression spring is provided between the pressure block and the fixing plate.

[0009] Furthermore, the second buffer component also includes: The base plate mounted on the support plate; A pair of support legs mounted on the base plate; A fixed cylinder mounted on a pair of support legs; A pair of second guide rods, both of which are disposed inside the fixed cylinder; A pair of second sliders are symmetrically mounted on the movable rod. The second sliders are slidably connected to the corresponding second guide rods. The movable rod passes through one end of the fixed cylinder and extends outward.

[0010] Furthermore, the protrusion of the connecting rod can abut against the extended end of the moving rod.

[0011] Furthermore, a third compression spring is provided between the moving rod and the inner wall of the fixed cylinder.

[0012] Furthermore, the convex plate on the sliding shaft abuts against the rubber ring on the cylinder.

[0013] Compared with the prior art, the advantages of this utility model are: 1. Multi-stage buffering and shock absorption: This invention achieves multi-stage buffering and shock absorption by setting up a wedge block moving mechanism, a first buffer assembly, and a second buffer assembly. When the car is bumpy, the different components work together to gradually absorb and disperse the vibration energy, greatly improving the shock absorption performance and effectively reducing the impact of vibration on the seat and passengers.

[0014] 2. Stable and reliable structure: The entire shock-absorbing base frame structure is rationally designed, with tight connections between components, ensuring stable operation. For example, the sliding fit between the sliding shaft and the cylinder, and the sliding fit between the first slider and the first guide rod, all guarantee stability and reliability during the shock absorption process, extending service life.

[0015] 3. High adaptability: Whether under slight or significant bumps, the shock-absorbing base frame structure of this invention can provide excellent shock absorption. During periods of significant bumps, the convex plate presses against the rubber ring to limit movement and prevent excessive component movement, further enhancing the structure's adaptability.

[0016] 4. Improved ride comfort: Effective shock absorption reduces seat swaying and vibration, allowing passengers to experience a smoother and more comfortable ride, meeting the high comfort requirements of zero-gravity seats. Attached Figure Description

[0017] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0018] Figure 1 This is a cross-sectional structural diagram of the present invention.

[0019] Figure 2 for Figure 1 A magnified partial sectional view.

[0020] Figure 3 for Figure 2 A magnified view of a portion of the image.

[0021] Figure 4 for Figure 2 Another enlarged view of a portion of the image.

[0022] Figure 5 for Figure 2 Another enlarged view of a portion of the image.

[0023] Explanation of reference numerals in the attached figures: 11. Connecting seat; 112. Support rib; 113. Top body; 115. Support plate; 1151. Vertical plate; 2. Shock absorption mechanism; 21. Cylinder; 22. Sliding shaft; 221. Protruding plate; 222. Vertical part; 23. Wedge block moving mechanism; 231. First wedge block; 232. Second wedge block; 233. First slider; 234. Connecting rod; 2341. Protrusion; 235. First guide rod; 2351. First compression spring; 236. Buffer cylinder; 2361. Extension 24. First buffer assembly; 241. Piston cylinder; 242. Fixed plate; 243. Piston; 244. Second compression spring; 245. Piston rod; 246. Elastic head; 247. Pressure block; 248. Connecting block; 25. Second buffer assembly; 251. Base plate; 252. Support foot; 253. Fixed cylinder; 254. Second guide rod; 255. Second slider; 256. Moving rod; 257. Third compression spring; 26. Rubber ring; 27. Protruding head. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. Here, the illustrative embodiments and descriptions of this utility model are used to explain the present utility model, but are not intended to limit the present utility model.

[0025] This zero-gravity seat damping base frame structure is designed to provide superior shock absorption performance for the seat, adapting to the complex and varied vibration environment during vehicle operation. Through the synergistic action of a multi-stage damping system, vibration energy is gradually dispersed and absorbed, minimizing the impact of vibration on the seat and passengers, creating a more comfortable and stable riding experience, and is especially suitable for zero-gravity seats that pursue ultimate comfort.

[0026] refer to Figures 1 to 5 ,like Figure 1 As shown, this embodiment provides a shock-absorbing base frame structure for a zero-gravity seat. The shock-absorbing base frame structure of this utility model mainly includes a connecting seat 11, a support plate 115, and a shock-absorbing mechanism 2. The connecting seat 11 is used to connect the seat frame, the support plate 115 is connected to the vehicle body floor, and the shock-absorbing mechanism 2 is installed on the support plate 115 to buffer vibrations generated during vehicle operation and improve ride comfort.

[0027] like Figure 1 and Figure 2As shown, a top body 113, made of rubber, is installed at the bottom of the connecting seat 11. This top body 113 rests against the protrusion 27 on the top of the sliding shaft 22, which is also made of rubber. This rubber-to-rubber contact design can absorb and buffer vibration energy to a certain extent. Several support ribs 112 are also evenly installed at the bottom of the connecting seat 11. Several shock absorbers 114 are installed between these support ribs 112 and the upright plate 1151 of the support plate 115. The cylinder of the shock absorber 114 is hinged to the upright plate 1151 via a hinge pin, and the extension rod of the shock absorber 114 is also hinged to the support ribs 112 via hinge pins. This hinged connection allows the shock absorber 114 to move flexibly in different directions, better adapting to various vibrations during vehicle operation.

[0028] The support plate 115 serves as the supporting foundation for the entire shock absorber base frame structure. It is firmly connected to the vehicle chassis floor using bolts and other fasteners, providing an installation platform for the shock absorber mechanism 2. Multiple reinforcing ribs are provided on the support plate 115, enhancing its structural strength and ensuring it can withstand various forces during the shock absorption process.

[0029] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the shock absorption mechanism 2 includes a cylinder 21, a sliding shaft 22, a pair of wedge moving mechanisms 23, a pair of buffer cylinders 236, a pair of first buffer components 24, and a pair of second buffer components 25.

[0030] The cylinder 21 is mounted on the support plate 115, and the sliding shaft 22 is slidably connected to the cylinder 21. The sliding shaft 22 can slide smoothly up and down inside the cylinder 21. The sliding shaft 22 is provided with a protruding plate 221, which abuts against the rubber ring 26 on the cylinder 21. When there is a large bump, the protruding plate 221 will press tightly against the rubber ring 26, which will play a limiting role, prevent the components from moving excessively, and avoid damage to the shock absorption mechanism 2.

[0031] A pair of wedge moving mechanisms 23 are symmetrically arranged between the inner side of the vertical part 222 of the sliding shaft 22 and the upright plate 1151 of the support plate 115. The wedge moving mechanism 23 includes a first wedge 231, a second wedge 232, a first slider 233, a connecting rod 234, a first guide rod 235, and a first compression spring 2351.

[0032] The first wedge 231 is fixedly connected to the inner bottom wall of the sliding shaft 22 by welding or bolting, ensuring synchronous movement with the sliding shaft 22. The first guide rod 235 is installed between a pair of upright plates 1151, with both ends fixed to the upright plates 1151 by fixing seats to ensure stability. The first slider 233 has sliding holes that mate with the first guide rod 235, achieving a sliding engagement connection. The second wedge 232 is bolted to the upper end of the first slider 233, and the inclined surface of the second wedge 232 can slide against the inclined surface of the first wedge 231.

[0033] The connecting rod 234 is connected to the lower end of the first slider 233 by a threaded connection or welding, and the end of the connecting rod 234 is in contact with the moving rod 256 of the corresponding second buffer assembly 25. The first compression spring 2351 is sleeved on the first guide rod 235 and presses against the first slider 233 and the corresponding vertical plate 1151. When the sliding shaft 22 moves downward, the first wedge 231 presses against the second wedge 232, causing the second wedge 232 to move outward along the first guide rod 235, thereby squeezing the first compression spring 2351. The first compression spring 2351 is compressed, achieving a preliminary buffering effect.

[0034] A pair of buffer cylinders 236 are bolted to the inner bottom wall of the sliding shaft 22. The buffer cylinders 236 are equipped with springs or other cushioning materials inside, which are used to cooperate with the first buffer assembly 24 to realize the function of buffering and shock absorption. When the sliding shaft 22 moves, the buffer cylinders 236 will move accordingly, thereby driving the first buffer assembly 24 to work.

[0035] A pair of first buffer components 24 are symmetrically arranged on the support plate 115 and connected to the corresponding buffer cylinders 236. Each first buffer component 24 includes a piston cylinder 241, a pair of fixed plates 242, a piston 243, a piston rod 245, an elastic head 246, a pressure block 247, and a second compression spring 244.

[0036] The piston cylinder 241 is fixed to the support plate 115 by bolts. The inner wall of the piston cylinder 241 is precision machined to ensure a tight seal with the piston 243.

[0037] A pair of fixed plates 242 are symmetrically mounted on the outer periphery of the piston cylinder 241. The piston 243 is slidably connected to the inner wall of the piston cylinder 241 through a sealing ring, ensuring that the piston 243 can slide smoothly within the piston cylinder 241 without leakage. The piston rod 245 is fixedly connected to the piston 243 by thread or welding and extends upward through the piston cylinder 241. The elastic head 246 is made of rubber or other elastic material and is mounted on the upper end of the piston rod 245 by bolts or adhesive. The pressure block 247 is connected to the extension rod 2361 of the buffer cylinder 236 through a connecting block 248, and the connecting block 248 is bolted to the pressure block 247 and the extension rod 2361. The elastic head 246 presses against the bottom surface of the pressure block 247. A second compression spring 244 is disposed between the pressure block 247 and the fixed plate 242.

[0038] When the sliding shaft 22 moves downward, it causes the buffer cylinder 236 to move downward. The upper end of the extension rod 2361 is cushioned within the buffer cylinder 236, while the lower end of the extension rod 2361 drives the pressure block 247 to move downward, pressing against the elastic head 246. The elastic head 246 then drives the piston rod 245 and piston 243 to move downward, compressing the air between the piston 243 and the bottom wall of the piston cylinder 241, thus providing a cushioning effect. Simultaneously, the downward movement of the pressure block 247 compresses the second compression spring 244, further enhancing the cushioning effect.

[0039] A pair of second buffer components 25 are symmetrically arranged on the support plate 115 and located at the interval between a pair of first buffer components 24, and are connected to the corresponding wedge moving mechanism 23. Each second buffer component 25 includes a base plate 251, a pair of support legs 252, a fixed cylinder 253, a pair of second guide rods 254, a pair of second sliders 255, a moving rod 256, and a third compression spring 257.

[0040] The base plate 251 is bolted to the support plate 115. A pair of support legs 252 are mounted to the base plate 251 by welding or bolting. The fixed cylinder 253 is bolted to the pair of support legs 252. A pair of second guide rods 254 are both disposed inside the fixed cylinder 253, and both ends of the second guide rods 254 are fixed to the inner wall of the fixed cylinder 253 by fixing seats. A pair of second sliders 255 are symmetrically mounted on the moving rod 256. The second sliders 255 are provided with sliding holes that mate with the second guide rods 254, and sliding engagement is achieved with the corresponding second guide rods 254 through the sliding holes. The moving rod 256 passes through one end of the fixed cylinder 253 and extends outward. The extended end of the moving rod 256 can abut against the protrusion 2341 of the connecting rod 234. A third compression spring 257 is disposed between the moving rod 256 and the inner wall of the fixed cylinder 253.

[0041] When the connecting rod 234 moves, it will cause the protrusion 2341 to squeeze the protruding end of the moving rod 256, causing the moving rod 256 to move into the fixed cylinder 253, thereby compressing the third compression spring 257 and achieving a buffering effect.

[0042] Working principle and process: When the car encounters bumps while driving, the connecting seat 11 moves downward with the seat frame, causing the top body 113 to press against the protrusion 27, driving the sliding shaft 22 to slide downward along the cylinder 21. At this time, the first wedge 231 presses against the second wedge 232, and the second wedge 232 moves outward along the first guide rod 235, squeezing the first compression spring 2351. The first compression spring 2351 is compressed, providing a preliminary buffering effect and converting some of the vibration energy into the elastic potential energy of the spring.

[0043] At the same time, the connecting rod 234 drives the protrusion 2341 to squeeze the protruding end of the moving rod 256, causing the moving rod 256 to move into the fixed cylinder 253. The third compression spring 257 is compressed, which further plays a buffering role and absorbs more vibration energy.

[0044] As the sliding shaft 22 moves downward along the cylinder 21, it also drives the buffer cylinder 236 downward. The upper end of the extension rod 2361 is buffered within the buffer cylinder 236, while the lower end of the extension rod 2361 drives the pressure block 247 downward, pressing against the elastic head 246. The elastic head 246 drives the piston rod 245 and piston 243 downward, compressing the air between the piston 243 and the bottom wall of the piston cylinder 241, thus providing a buffering effect and converting vibration energy into the internal energy of the air. Simultaneously, the pressure block 247 compresses the second compression spring 244, which is also compressed, providing a buffering effect and absorbing vibration energy again.

[0045] In addition, when the connecting seat 11 moves downward, several shock absorbers 114 also play a role in damping vibration. The shock absorbers 114, through their internal damping materials and structures, convert vibration energy into heat energy and other forms of energy to dissipate it, further reducing the impact of vibration on the seat. When the bumps are relatively large, the convex plate 221 will press against the rubber ring 26 to limit the movement of the components and prevent excessive movement, thus protecting the various components of the shock absorption mechanism 2 from damage.

[0046] Through the synergistic effect of the above multi-level shock absorption methods, the shock absorption base frame structure of the zero-gravity seat of this utility model can effectively disperse and absorb vibration energy step by step, greatly improving shock absorption performance and providing passengers with a more comfortable and stable riding experience.

[0047] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the embodiments of the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A shock absorbing base frame structure of a zero gravity seat, characterized by, include: Connecting seat (11), the seat frame is connected to the connecting seat (11); Support plate (115), the support plate (115) is connected to the vehicle body floor plate; The shock absorption mechanism (2) includes: The cylinder (21) is mounted on the support plate (115); A sliding shaft (22) is slidably connected to the cylinder (21); A pair of wedge moving mechanisms (23) are symmetrically arranged between the inner side of the vertical part (222) of the sliding shaft (22) and the upright plate (1151) of the support plate (115); A pair of buffer cylinders (236) are installed on the inner bottom wall of the sliding shaft (22); A pair of first buffer components (24) are symmetrically arranged on the support plate (115), and the first buffer components (24) are connected to the corresponding buffer cylinders (236); A pair of second buffer components (25) are symmetrically arranged on the support plate (115) and located at the interval between a pair of first buffer components (24), and are connected to the corresponding wedge moving mechanism (23).

2. The shock absorbing base frame structure of a zero gravity seat according to claim 1, characterized by, The wedge moving mechanism (23) includes: The first wedge (231) is fixedly connected to the inner bottom wall of the sliding shaft (22); The first guide rod (235) is installed between the pair of said upright plates (1151); The first slider (233) is slidably connected to the first guide rod (235); The second wedge (232) is installed on the upper end of the first slider (233) and can slide with the first wedge (231).

3. The shock absorbing base frame structure of a zero gravity seat according to claim 2, characterized in that, The wedge moving mechanism (23) further includes: The connecting rod (234) is connected to the lower end of the first slider (233) and is in contact with the moving rod (256) of the corresponding second buffer assembly (25); The first compression spring (2351) presses against the first slider (233) and the corresponding upright plate (1151).

4. The shock absorbing base frame structure of a zero gravity seat according to claim 3, characterized in that, The first buffer component (24) includes: Piston cylinder (241) fixed on the support plate (115); A pair of fixing plates (242) are symmetrically installed on the outer periphery of the piston cylinder (241); A piston (243) that is slidably connected to the inner wall of the piston cylinder (241). A piston rod (245) is fixedly connected to the piston (243), and the piston rod (245) extends upward through the piston cylinder (241); An elastic head (246) is mounted on the upper end of the piston rod (245); A pressure block (247) is connected to the extension rod (2361) of the buffer cylinder (236) via a connecting block (248), and the elastic head (246) presses against the bottom surface of the pressure block (247).

5. The shock absorbing base frame structure of a zero gravity seat according to claim 4, characterized in that, A second compression spring (244) is provided between the pressure block (247) and the fixing plate (242).

6. The shock absorbing base frame structure of a zero gravity seat according to claim 5, characterized in that, The second buffer component (25) also includes: A base plate (251) is installed on the support plate (115); A pair of support legs (252) mounted on the base plate (251); A fixing cylinder (253) is installed on a pair of support legs (252); A pair of second guide rods (254) are both disposed inside the fixed cylinder (253); A pair of second sliders (255) are symmetrically mounted on the moving rod (256). The second sliders (255) are slidably connected to the corresponding second guide rods (254). The moving rod (256) passes through one end of the fixed cylinder (253) and extends outward.

7. The shock absorbing base frame structure of a zero gravity seat according to claim 6, characterized in that, The protrusion (2341) of the connecting rod (234) can abut against the extended end of the moving rod (256).

8. The shock absorbing base frame structure of a zero gravity seat according to claim 7, characterized in that, A third compression spring (257) is provided between the moving rod (256) and the inner wall of the fixed cylinder (253).

9. The shock absorbing base frame structure of a zero gravity seat according to claim 8, characterized in that, The protruding plate (221) on the sliding shaft (22) presses against the rubber ring (26) on the cylinder (21).

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