Seat adjustment swivel mechanism

Abstract

The utility model discloses a seat adjusting and rotating mechanism, including rotating and adjusting seat, the inside of rotating and adjusting seat is provided with annular adjusting slide cavity. The utility model uses, through being equiangularly arranged with 24 locking clamping slots in the inside of rotating and adjusting seat, it is convenient for user to determine the adjusting angle of seat back, specifically, user unscrews the threaded insert rod on two symmetrical distribution's locking clamping slots corresponding to the required adjusting angle, exposes the inside space of locking clamping slot, then rotates seat back, and back with assembly disc and rotating connecting arm will rotate movement, when rotating to the adjusting slide block of rotating connecting arm both ends aligns the locking clamping slot of having taken down threaded insert rod, the locking block in the inside of adjusting slide block will be under the elastic pretightening force of second spring, cooperate the sliding limit structure of the limiting slide sleeve and limiting slide rod that the locking block and adjusting slide block between add, pops out and clamps into locking clamping slot inside realizes the locking effect of firmness.

Description

Technical Field

[0001] This utility model relates to the field of seat adjustment structure technology, specifically a seat adjustment rotation mechanism. Background Technology

[0002] A chair is a piece of furniture or a rotating and adjustable structure for people to sit on. It usually consists of a seat, backrest, and support. It is widely used in homes, offices, and automobiles. Its main function is to provide users with comfortable sitting support to reduce physical fatigue. There is often a rotating mechanism between the backrest and the seat, which makes it easy to flip the backrest to adjust its angle.

[0003] Current seat adjustment and rotation mechanisms often have a small adjustment range to maintain backrest stability, and the adjustment angle is also difficult to determine. On the other hand, the rotation adjustment structure with bearings and screws with a large adjustment range suffers from problems such as screws being prone to loosening and insufficient stability. This results in poor performance of the rotation adjustment structure. Based on this, we propose a new type of seat adjustment and rotation mechanism. Utility Model Content

[0004] The purpose of this invention is to provide a seat adjustment and rotation mechanism to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a seat adjustment and rotation mechanism, comprising a rotating adjustment seat, an annular adjustment slide cavity inside the rotating adjustment seat, an adjustment slider uniformly slidably connected inside the annular adjustment slide cavity, a locking block movably connected inside the adjustment slider, a second spring connected between the locking block and the adjustment slider, limit sleeves provided at both ends of the bottom of the locking block, a limit slide rod matching the limit sleeve fixed inside the adjustment slider, a locking groove uniformly provided on the inner side wall of the rotating adjustment seat and communicating with the annular adjustment slide cavity, a threaded rod matching the locking block threadedly connected to the locking groove, a rotating connecting arm fixed between adjacent adjustment sliders, a backrest assembly plate fixed on one side of the rotating connecting arm, a seat assembly plate fixed on the side of the rotating adjustment seat away from the backrest assembly plate, and fixing screw holes uniformly provided at the edges of both the seat assembly plate and the backrest assembly plate.

[0006] Preferably, the top of the rotary adjustment seat is provided with a lubricating oil adding pipe that communicates with the annular adjustment slide cavity, and the top of the lubricating oil adding pipe is threadedly connected with a threaded sealing cap.

[0007] Preferably, the adjusting slider has a hollow structure, and two adjusting sliders are provided, which are symmetrically distributed inside the annular adjusting cavity.

[0008] Preferably, there are 24 locking slots, which are distributed at equal angles on the rotating adjustment seat.

[0009] Preferably, an anti-loss hanging rope is provided between the threaded rod and the outer wall of the rotary adjustment seat.

[0010] Preferably, the backrest assembly plate has external ball bearings evenly and movably connected at the edge near the rotating adjustment seat.

[0011] Preferably, one side of both the seat assembly plate and the backrest assembly plate is connected to a rubber anti-slip pad.

[0012] Preferably, both the seat mounting plate and the backrest mounting plate are uniformly connected to the rubber anti-slip pad with a first spring.

[0013] Preferably, the outer wall of the rotary adjustment seat is uniformly provided with fluorescent marking strips that match the locking slots, making it easy to use the fluorescent marking strips to mark the positioning and adjustment position.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] (1) The seat adjustment rotation mechanism optimizes its performance by installing adjustment sliders, etc. It features 24 locking slots arranged at equal angles inside the rotation adjustment seat, with adjacent locking slots forming a 15-degree angle. This facilitates the user in determining the adjustment angle of the seat back. Specifically, the user unscrews the threaded rods on the two symmetrically distributed locking slots corresponding to the desired adjustment angle, exposing the internal space of the locking slots. Then, by rotating the seat back, the backrest mounting plate and rotating connecting arm will rotate accordingly. When the adjusting sliders at both ends of the rotating connecting arm are aligned with the locking slots of the removed threaded inserts, the locking blocks inside the adjusting sliders will, under the elastic preload of the second spring, cooperate with the sliding limit structure consisting of the limiting sleeve and the limiting rod installed between the locking blocks and the adjusting sliders to pop out and lock into the locking slots to achieve a stable locking effect. Compared with common screw locking, there will be no problem of the backrest loosening due to screw slippage. This makes the rotating adjustment structure achieve a controllable angle and a high degree of stability in rotation adjustment, making it highly practical.

[0016] (2) The seat adjustment and rotation mechanism has optimized its structure by installing a first spring, etc. When in use, the fixing screw holes on the seat mounting plate and backrest mounting plate on both sides of the rotating adjustment seat can be used to press the first spring with screws, so that the rubber anti-slip pad is tightly attached to the seat surface and the seat backrest for fixed installation. In this way, the anti-slip effect of the rubber anti-slip pad and the preload of the first spring can improve the firmness of the rotating adjustment seat when installed between the seat surface and the seat backrest. Compared with the traditional method of fixing with a single screw, it can better avoid the problem of loosening of the connection position during long-term use without affecting disassembly and assembly, thus enhancing practicality. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of the present invention;

[0018] Figure 2 This is a side view of the structure of this utility model;

[0019] Figure 3 This is a partial cross-sectional view of the present invention.

[0020] Figure 4 This is a front view cross-sectional structural diagram of the locking groove of this utility model;

[0021] Figure 5 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0022] In the diagram: 1. Fixing screw hole; 2. Rubber anti-slip pad; 3. Backrest assembly plate; 4. Rotary adjustment seat; 5. Seat surface assembly plate; 6. First spring; 7. Locking slot; 8. Adjusting slider; 9. Annular adjusting cavity; 10. Rotary connecting arm; 11. Limiting sleeve; 12. Limiting rod; 13. Locking block; 14. Second spring; 15. Anti-loss hanging rope; 16. Threaded sealing cap; 17. Lubricating oil adding tube; 18. Fluorescent marking strip; 19. Threaded insertion rod; 20. External ball bearing. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] Please see Figure 1-5An embodiment of this utility model provides a seat adjustment and rotation mechanism, including a rotating adjustment seat 4, an annular adjustment slide cavity 9 is provided inside the rotating adjustment seat 4, an adjustment slider 8 is uniformly slidably connected inside the annular adjustment slide cavity 9, a locking block 13 is movably connected inside the adjustment slider 8, a second spring 14 is connected between the locking block 13 and the adjustment slider 8, both ends of the bottom of the locking block 13 are provided with limit sleeves 11, and a limit slide rod 12 matching the limit sleeve 11 is fixed inside the adjustment slider 8;

[0025] The inner sidewall of the rotary adjustment seat 4 is evenly provided with locking grooves 7 that communicate with the annular adjustment slide cavity 9. The locking grooves 7 are threadedly connected with threaded rods 19 that match the locking block 13.

[0026] The adjusting slider 8 has a hollow structure, and there are two adjusting sliders 8, which are symmetrically distributed inside the annular adjusting cavity 9.

[0027] There are 24 locking slots 7, which are distributed at equal angles on the rotary adjustment seat 4.

[0028] A rotating connecting arm 10 is fixed between adjacent adjusting sliders 8, and a backrest assembly plate 3 is fixed on one side of the rotating connecting arm 10.

[0029] In use, 24 locking slots 7 are evenly spaced inside the rotating adjustment seat 4, with adjacent locking slots 7 forming a 15-degree angle. This facilitates the user in determining the adjustment angle of the seat back. Specifically, the user unscrews the threaded rods 19 on the two symmetrically distributed locking slots 7 corresponding to the desired adjustment angle, exposing the internal space of the locking slots 7. Then, the user rotates the seat back, causing the backrest assembly plate 3 and the rotating connecting arm 10 to rotate accordingly. When the adjustment sliders 8 at both ends of the rotating connecting arm 10 are aligned with the disassembled... When the threaded insert 19 is locked in the locking slot 7, the locking block 13 inside the adjusting slider 8 will be released and locked into the locking slot 7 under the elastic preload of the second spring 14, in conjunction with the sliding limit structure formed by the limiting sleeve 11 and the limiting rod 12 installed between the locking block 13 and the adjusting slider 8, to achieve a stable locking effect. Compared with common screw locking, there will be no problem of backrest loosening caused by screw slippage. This makes the rotation adjustment structure achieve a controllable angle and a high degree of stability in rotation adjustment, which is highly practical.

[0030] A seat assembly plate 5 is fixed on the side of the rotating adjustment base 4 away from the backrest assembly plate 3. Fixing screw holes 1 are evenly provided on the edges of both the seat assembly plate 5 and the backrest assembly plate 3.

[0031] The top of the rotary adjustment seat 4 is provided with a lubricating oil adding pipe 17 that communicates with the annular adjustment slide cavity 9, and the top of the lubricating oil adding pipe 17 is threadedly connected with a threaded sealing cap 16.

[0032] In use, by adding a lubrication structure to the rotary adjustment structure, the user can open the threaded sealing cover 16 and add lubricating oil into the annular adjustment slide cavity 9 through the lubricating oil adding pipe 17. This facilitates the lubrication of the moving structure inside the rotary mechanism and helps to extend the service life of the rotary adjustment structure.

[0033] An anti-loss rope 15 is provided between the threaded rod 19 and the outer wall of the rotary adjustment seat 4;

[0034] The backrest assembly plate 3 has an outer ball bearing 20 evenly connected to the edge of the side near the rotating adjustment seat 4;

[0035] Rubber anti-slip pads 2 are attached to one side of both the seat assembly plate 5 and the backrest assembly plate 3.

[0036] Both the seat assembly plate 5 and the backrest assembly plate 3 are evenly connected to the rubber anti-slip pad 2 by a first spring 6.

[0037] In use, the mounting plates 5 for the seat surface and 3 for the backrest on both sides of the rotating adjustment seat 4 can be fixed by screws pressing the first spring 6 together, so that the rubber anti-slip pad 2 is tightly attached to the seat surface and the seat backrest for fixed installation. The anti-slip effect of the rubber anti-slip pad 2 and the preload of the first spring 6 help to improve the firmness of the rotating adjustment seat 4 when installed between the seat surface and the seat backrest. Compared with the traditional method of fixing with a single screw, it can better avoid the problem of loosening of the connection position during long-term use without affecting disassembly and assembly, thus enhancing practicality.

[0038] The outer wall of the rotary adjustment seat 4 is evenly provided with fluorescent marking strips 18 that match the locking slots 7, so that the positioning adjustment position can be easily marked by the fluorescent marking strips 18.

[0039] In this embodiment, the following steps are taken: First, the mounting holes 1 on the seat mounting plates 5 and backrest mounting plates 3 on both sides of the rotating adjustment seat 4 are used to tighten the first spring 6 with screws, thus securing the rubber anti-slip pad 2 tightly against the seat surface and backrest. The anti-slip effect of the rubber anti-slip pad 2 and the preload of the first spring 6 improve the stability of the rotating adjustment seat 4 when installed between the seat surface and backrest. Compared to the traditional method of using a single screw, this method better avoids the need for long-term use without affecting disassembly and assembly. To address the issue of loose connections that arose during use, the system enhances practicality. In actual operation, 24 locking slots 7 are evenly spaced inside the rotating adjustment seat 4, with adjacent locking slots 7 forming a 15-degree angle. This facilitates the user in determining the adjustment angle of the seat back. Specifically, the user unscrews the threaded rods 19 on the two symmetrically distributed locking slots 7 corresponding to the desired adjustment angle, exposing the internal space of the locking slots 7. Then, the user rotates the seat back, causing the backrest assembly plate 3 and the rotating connecting arm 10 to rotate accordingly. When the rotation reaches both ends of the rotating connecting arm 10... When the adjusting slider 8 is aligned with the locking slot 7 of the removed threaded rod 19, the locking block 13 inside the adjusting slider 8, under the elastic preload of the second spring 14, works in conjunction with the sliding limit structure formed by the limiting sleeve 11 and the limiting rod 12 installed between the locking block 13 and the adjusting slider 8 to pop out and engage inside the locking slot 7, achieving a stable locking effect. Compared to common screw locking, this avoids the problem of the backrest loosening due to screw slippage. This allows the rotary adjustment structure to achieve a controllable angle and highly stable rotary adjustment function, making it highly practical. Furthermore, one On the one hand, by adding a lubrication structure to the rotary adjustment structure, in actual operation, the user can open the threaded sealing cover 16 and add lubricating oil into the annular adjustment slide cavity 9 through the lubricating oil addition pipe 17. This facilitates the lubrication of the moving structure inside the rotary mechanism and helps to improve the service life of the rotary adjustment structure. On the other hand, by evenly and dynamically connecting the outer ball bearings 20 on the edge of the backrest assembly plate 3 near the rotary adjustment seat 4, the stability of the backrest assembly plate 3 when rotating along the rotary adjustment seat 4 is improved, and the exposed outer ball bearings 20 also facilitate lubrication and maintenance.

Claims

1. A seat adjustment and rotation mechanism, characterized in that, The system includes a rotary adjustment seat (4), which has an annular adjustment cavity (9) inside. An adjustment slider (8) is slidably connected inside the annular adjustment cavity (9). A locking block (13) is movably connected inside the adjustment slider (8). A second spring (14) connects the locking block (13) and the adjustment slider (8). Limiting sleeves (11) are provided at both ends of the bottom of the locking block (13). A limiting rod (12) matching the limiting sleeve (11) is fixed inside the adjustment slider (8). The inner sidewall is uniformly provided with locking grooves (7) that communicate with the annular adjustment slide cavity (9). The locking groove (7) is threaded with a threaded rod (19) that matches the locking block (13). A rotating connecting arm (10) is fixed between adjacent adjustment sliders (8). A backrest assembly plate (3) is fixed on one side of the rotating connecting arm (10). A seat assembly plate (5) is fixed on the side of the rotating adjustment seat (4) away from the backrest assembly plate (3). Fixing screw holes (1) are uniformly provided at the edges of both the seat assembly plate (5) and the backrest assembly plate (3).

2. The seat adjustment and rotation mechanism according to claim 1, characterized in that: The top of the rotary adjustment seat (4) is provided with a lubricating oil adding pipe (17) that communicates with the annular adjustment slide cavity (9), and the top of the lubricating oil adding pipe (17) is threadedly connected with a threaded sealing cap (16).

3. The seat adjustment and rotation mechanism according to claim 1, characterized in that: The adjusting slider (8) has a hollow structure, and there are two adjusting sliders (8). The adjusting sliders (8) are symmetrically distributed inside the annular adjusting cavity (9).

4. The seat adjustment and rotation mechanism according to claim 1, characterized in that: There are 24 locking slots (7), which are distributed at equal angles on the rotating adjustment seat (4).

5. The seat adjustment and rotation mechanism according to claim 1, characterized in that: An anti-loss rope (15) is provided between the outer wall of the threaded rod (19) and the rotary adjustment seat (4).

6. The seat adjustment and rotation mechanism according to claim 1, characterized in that: The backrest assembly plate (3) has an outer ball bearing (20) evenly and dynamically connected at the edge of the side near the rotating adjustment seat (4).

7. The seat adjustment and rotation mechanism according to claim 1, characterized in that: Rubber anti-slip pads (2) are connected to one side of both the seat assembly plate (5) and the backrest assembly plate (3).

8. A seat adjustment and rotation mechanism according to claim 7, characterized in that: Both the seat assembly plate (5) and the backrest assembly plate (3) are uniformly connected to the rubber anti-slip pad (2) by a first spring (6).

9. A seat adjustment and rotation mechanism according to claim 1, characterized in that: The outer wall of the rotary adjustment seat (4) is uniformly provided with fluorescent marking strips (18) that match the locking slots (7).

Images