一种方便调节的椅脚架
By introducing a hydraulic cylinder, spring buffer system, and threaded rod adjustment mechanism into the chair leg frame, the problems of insufficient buffering and fixed height of traditional chair leg frames are solved, achieving a comfortable and stable chair user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIAXING YONGTAI HARDWARE PLASTICS CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional chair legs are insufficient in terms of cushioning and shock absorption, and cannot meet the needs of people of different heights, resulting in discomfort and damage to the chair structure.
Design a chair leg frame that includes a cushioning component and a height adjustment component. The cushioning is achieved by a combination of hydraulic cylinders and springs, the height is adjusted by a threaded rod and an internal threaded sleeve, and rubber sleeves and counterweights are added to the bottom of the support legs to improve stability.
It effectively reduces the impact when sitting down or standing up, adapts to different heights, improves user comfort and chair stability, extends service life, and protects the floor.
Smart Images
Figure CN224505013U_ABST
Abstract
Claims
1. A chair footrest that is easy to adjust, characterized in that, It includes a mounting plate (1) and a frame (4), on which a height adjustment component (3) is installed, and a buffer component (2) is installed between the height adjustment component (3) and the mounting plate (1). The buffer component (2) includes a fixing plate (201), which is located at the top of the height adjustment component (3). Several vertical sliding rods (202) are symmetrically fixedly connected to the bottom of the mounting plate (1). The vertical sliding rods (202) are longitudinally slidably connected to the fixing plate (201). A piston (204) is slidably connected inside the hydraulic cylinder (207). A vertical connecting rod (203) is fixedly connected to the top of the piston (204). The vertical connecting rod (203) passes through the top of the hydraulic cylinder (207) and is fixedly connected to the bottom of the mounting plate (1). The vertical connecting rod (203) is connected to the hydraulic cylinder. (207) are sealed and slidingly fitted. The hydraulic cylinder (207) is provided with a lower oil chamber (208) below the piston (204) and an upper oil chamber (209) is provided above the piston (204). Several connecting pipes (205) are fixedly connected to the outer circumferential array of the hydraulic cylinder (207). The top end of the connecting pipe (205) is connected to the upper oil chamber (209) and the bottom end of the connecting pipe (205) is connected to the lower oil chamber (208). The connecting pipe (205) and the outer side of the hydraulic cylinder (207) are jointly fitted with a spring (206).
2. A chair footrest according to claim 1, wherein, The top end of the spring (206) is fixedly connected to the bottom of the mounting plate (1), and the bottom end of the spring (206) is fixedly connected to the top of the fixing plate (201).
3. A chair footrest according to claim 1, wherein, The height adjustment component (3) includes an internal threaded sleeve (301), the top end of which is fixedly connected to the bottom of the fixing plate (201). A U-shaped frame (302) is fixedly connected to the frame wall of the frame body (4). A threaded rod (303) is rotatably connected through the U-shaped frame (302) longitudinally. The upper part of the threaded rod (303) extends into the internal threaded sleeve (301) and is threadedly connected to it. A rotating rod (304) is fixedly connected to the bottom end of the threaded rod (303). Several guide rails (3011) are fixedly connected in a circular array on the outer side wall of the internal threaded sleeve (301). The internal threaded sleeve (301) and the guide rails (3011) are slidably connected through the frame body (4).
4. A chair footrest according to claim 1, wherein, Four support legs (401) are symmetrically fixedly installed on the frame (4). Leg supports (5) are slidably sleeved on two of the support legs (401) in the longitudinal direction. A rotating screw (6) is provided on one side of the leg support (5). A through hole for the rotating screw (6) is opened through the side wall of the leg support (5). Several threaded holes (7) are opened at equal intervals from bottom to top on one side of the support leg (401). The threaded holes (7) are adapted to the rotating screw (6). One end of the rotating screw (6) passes through the through hole and is threadedly connected to one of the threaded holes (7).
5. A chair footrest according to claim 4, wherein, The bottom end of each of the four support legs (401) is fixedly sleeved with a rubber sleeve (9).
6. A chair footrest according to claim 4, wherein, The four support legs (401) are jointly fixedly connected with counterweights (8) on the lower outer walls.