CN220236449U

CN220236449U - Swivel chair chassis capable of adjusting height and angle simultaneously

Info

Publication number: CN220236449U
Application number: CN202321822262.7U
Authority: CN
Inventors: 段国华
Original assignee: Hangzhou Tongben Mould Manufacturing Co ltd
Current assignee: Hangzhou Tongben Mould Manufacturing Co ltd
Priority date: 2023-07-12
Filing date: 2023-07-12
Publication date: 2023-12-26
Anticipated expiration: 2033-07-12

Abstract

The utility model discloses a swivel chair chassis capable of simultaneously adjusting height and angle, which belongs to the technical field of swivel chairs and comprises a fixed seat, and is characterized in that: the utility model effectively realizes flexible adjustment of the angle of the backrest of the swivel chair and the integral height of the swivel chair, and simultaneously continuously ensures the stability of the backrest of the swivel chair for the back support of a user.

Description

Swivel chair chassis capable of adjusting height and angle simultaneously

Technical Field

The utility model relates to the technical field of swivel chairs, in particular to a swivel chair chassis capable of adjusting the height and the angle simultaneously.

Background

The chair is an important classification of furniture, the swivel chair is a group of important branches of the chair and is widely applied to office scenes such as office buildings, the traditional swivel chair can be used for adjusting the height so as to enable a user to be in a comfortable sitting posture, but the angle of a backrest which is another factor for guaranteeing the comfort of the sitting posture is difficult to flexibly adjust through a mechanical structure, and the backrest is supported by more deformation of plastic materials, so that the backrest cannot be flexibly adjusted, and can be irreversibly deformed after being used for a period of time, so that the back of the user cannot be stably supported any more, and based on the situation, the angle of the swivel chair backrest can be flexibly adjusted through the mechanical structure, so that the stability of the swivel chair backrest on the back of the user is continuously guaranteed, and the problem that the related technical personnel are urgent to solve is increasingly solved.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a swivel chair chassis capable of adjusting the height and the angle simultaneously.

The utility model provides a swivel chair chassis that can adjust height and angle simultaneously, includes fixing base, its characterized in that: the fixed mount pad that sets up in fixing base upper portion intermediate position, mount pad lower part intermediate position is fixed to be set up the installation cover, the fixing base front portion sets up the front rotation seat, the front rotation seat lower part is fixed to be set up first front pivot, first front pivot with the fixing base rotates to be connected, front rotation seat upper portion rotates to set up the second front pivot, the fixing base rear portion sets up the back rotation seat, back rotation seat lower part is fixed to set up first back pivot, first back pivot with the fixing base rotates to be connected, back rotation seat upper portion rotates to set up the second back pivot, the fixing base top sets up the tray, the tray with pivot is rotated simultaneously to be connected before the second front pivot, second back pivot.

Further, a spring is arranged between the first front rotating shaft and the second rear rotating shaft, hooks are symmetrically and fixedly arranged at two ends of the spring, the hooks close to the first front rotating shaft are connected with the first front rotating shaft in a hanging mode, and the hooks close to the second rear rotating shaft are connected with the second rear rotating shaft in a hanging mode.

Further, the number of the springs is 2, and the springs in 2 groups are symmetrically arranged.

Further, a locking device is arranged on one side of the fixing seat and comprises a lock rod and a handle, the lock rod penetrates through the fixing seat, a bayonet is arranged at the position, corresponding to the lock rod, of the rear rotating seat, the lock rod is clamped with the bayonet, and a limiting plate is fixedly arranged at the middle position of the lock rod.

Further, a limiting shaft is arranged between the second rear rotating shaft and the first rear rotating shaft, the limiting shaft is fixedly connected with the rear rotating seat, limiting grooves are symmetrically arranged at positions, corresponding to the limiting shaft, of the fixing seat, and the limiting shaft is in sliding connection with the limiting grooves.

Further, a front shade is arranged above the front rotating seat, a rear shade is arranged above the rear rotating seat, and the front shade and the rear shade are both clamped with the tray.

The swivel chair chassis capable of adjusting the height and the angle simultaneously has the beneficial effects that:

1. the user only needs to withdraw the lock rod, release the clamping connection of the lock rod and the bayonet, the hook can be pulled by the spring, and then the hook pulls the first front rotating shaft and the second rear rotating shaft, so that the front rotating seat and the rear rotating seat synchronously rotate, the back rotating seat rotates to enable the backrest to be attached to the back of the user, the backrest angle can be adjusted only by leaning backwards or leaning forwards, the supporting plate can be adjusted in height by synchronously rotating the front rotating seat and the rear rotating seat, and therefore the flexible adjustment of the backrest angle of the swivel chair and the integral height of the swivel chair is effectively realized, and meanwhile, the stability of the backrest of the swivel chair to the back support of the user is continuously ensured;

2. the locking device effectively ensures the locking of the rear rotating seat when the limiting shaft is positioned at the lower end of the limiting groove, the limiting plate is matched with the limiting shaft, the locking of the rear rotating seat for completing the angle adjustment is effectively ensured, the sliding connection of the limiting shaft and the limiting groove effectively ensures the stability of the rotating track of the rear rotating seat, and meanwhile, the condition that the adjustment degree is overlarge under the unlimited condition is effectively avoided.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will simply describe the drawings used in the embodiments or the description of the prior art, but does not limit the scope of protection of the present utility model.

FIG. 1 is a schematic view of the external structure of the present utility model;

FIG. 2 is a schematic diagram of the internal structure of the present utility model;

FIG. 3 is a schematic diagram of the internal structure of the present utility model (II);

FIG. 4 is a schematic diagram of the internal structure of the present utility model;

the device comprises a 1-tray, a 2-rear rotating seat, a 3-locker, a 4-front shade, a 5-fixing seat, a 6-limit groove, a 7-rear shade, an 8-front rotating seat, a 9-second front rotating shaft, a 10-first front rotating shaft, a 11-bayonet, a 12-second rear rotating shaft, a 13-limit shaft, a 14-first rear rotating shaft, a 15-hook, a 16-spring, a 17-lock rod, a 18-mounting seat, a 19-mounting sleeve, a 20-handle and a 21-limit plate.

Detailed Description

For clarity of description, a swivel chair chassis of the present utility model, which can be adjusted in height and angle at the same time, will be further described with reference to fig. 1 to 4 of the accompanying drawings.

The utility model provides a swivel chair chassis that can adjust height and angle simultaneously, includes fixing base 5, its characterized in that: the fixed mount pad 18 that sets up in middle position in fixing base 5 upper portion, mount pad 18 lower part intermediate position fixed mounting sleeve 19 that sets up, the fixing base 5 front portion sets up preceding rotation seat 8, preceding rotation seat 8 lower part fixed first preceding pivot 10 that sets up, first preceding pivot 10 with fixing base 5 rotates to be connected, preceding rotation seat 8 upper portion rotates and sets up second preceding pivot 9, fixing base 5 rear portion sets up back rotation seat 2, back rotation seat 2 lower part fixed first back pivot 14 that sets up, first back pivot 14 with fixing base 5 rotates to be connected, back rotation seat 2 upper portion rotates and sets up second back pivot 12, fixing base 5 top sets up tray 1, tray 1 with second preceding pivot 9, second back pivot 12 rotate simultaneously to be connected.

Further, a spring 16 is disposed between the first front rotating shaft 10 and the second rear rotating shaft 12, two ends of the spring 16 are symmetrically and fixedly provided with hooks 15, the hooks 15 close to the first front rotating shaft 10 are hung with the first front rotating shaft 10, and the hooks 15 close to the second rear rotating shaft 12 are hung with the second rear rotating shaft 12.

Further, the number of the springs 16 is 2, and the springs 16 in 2 groups are symmetrically arranged.

Further, a locking device 3 is arranged on one side of the fixing seat 5, the locking device 3 comprises a locking rod 17 and a handle 20, the locking rod 17 penetrates through the fixing seat 5, a bayonet 11 is arranged at a position corresponding to the locking rod 17 of the rear rotating seat 2, the locking rod 17 is clamped with the bayonet 11, and a limiting plate 21 is fixedly arranged at the middle position of the locking rod 17.

Further, a limiting shaft 13 is arranged between the second rear rotating shaft 12 and the first rear rotating shaft 14, the limiting shaft 13 is fixedly connected with the rear rotating seat 2, the fixing seat 5 and the corresponding position of the limiting shaft 13 are symmetrically provided with limiting grooves 6, and the limiting shaft 13 is in sliding connection with the limiting grooves 6.

Further, a front shade 4 is arranged above the front rotating seat 8, a rear shade 7 is arranged above the rear rotating seat 2, and the front shade 4 and the rear shade 7 are both clamped with the tray 1.

The working principle of the swivel chair chassis capable of simultaneously adjusting the height and the angle is as follows: the limiting shaft 13 is arranged at the lower end of the limiting groove 6 in a default state, the tray 1 is at the lowest position, the swivel chair backrest is at the forefront inclined position, the handle 20 is held, the locker 3 is integrally pulled out to be close to the handle 20 until the lock rod 17 and the bayonet 11 are released from clamping connection, the spring 16 simultaneously pulls the first front rotating shaft 10 and the second rear rotating shaft 12 through the hooks 15 at two ends, the first rear rotating shaft 14 and the rear rotating seat 2 synchronously rotate, the backrest is attached to the back of a user through the rear rotating seat 2, the backrest angle can be adjusted by the user only by leaning backwards, the first front rotating shaft 10 and the front rotating seat 8 synchronously rotate, the second front rotating shaft 9 and the second rear rotating shaft 12 synchronously rise at the same height, so that the tray 1 rises at a certain height in a horizontal state, when the backrest angle and the integral height enable the user to be in a comfortable sitting position, the user holds the locker 3 by holding the handle 20 until the limiting plate 21 is in contact with the limiting shaft 13, the rear rotating seat 2 can be kept in a stable state, and thus the adjustment process can be completed once.

The above is merely a specific embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any changes or substitutions that do not undergo the inventive work should be covered in the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope defined by the claims.

Claims

1. The utility model provides a swivel chair chassis that can adjust height and angle simultaneously, includes fixing base, its characterized in that: the fixed mount pad that sets up in fixing base upper portion intermediate position, mount pad lower part intermediate position is fixed to be set up the installation cover, the fixing base front portion sets up the front rotation seat, the front rotation seat lower part is fixed to be set up first front pivot, first front pivot with the fixing base rotates to be connected, front rotation seat upper portion rotates to set up the second front pivot, the fixing base rear portion sets up the back rotation seat, back rotation seat lower part is fixed to set up first back pivot, first back pivot with the fixing base rotates to be connected, back rotation seat upper portion rotates to set up the second back pivot, the fixing base top sets up the tray, the tray with pivot is rotated simultaneously to be connected before the second front pivot, second back pivot.

2. The swivel chair chassis of claim 1, wherein a spring is disposed between the first front rotating shaft and the second rear rotating shaft, hooks are symmetrically and fixedly disposed at two ends of the spring, and a hook near the first front rotating shaft is hooked with the first front rotating shaft and a hook near the second rear rotating shaft is hooked with the second rear rotating shaft.

3. A swivel chair chassis with simultaneous height and angle adjustment according to claim 2, wherein the number of springs is 2, and the springs of 2 groups are symmetrically arranged.

4. The swivel chair chassis capable of simultaneously adjusting the height and the angle according to claim 1, wherein a lock is arranged on one side of the fixing seat, the lock comprises a lock rod and a handle, the lock rod penetrates through the fixing seat, a bayonet is arranged at a position corresponding to the rear rotating seat and the lock rod, the lock rod is clamped with the bayonet, and a limiting plate is fixedly arranged at the middle position of the lock rod.

5. The swivel chair chassis capable of simultaneously adjusting the height and the angle according to claim 1, wherein a limiting shaft is arranged between the second rear rotating shaft and the first rear rotating shaft, the limiting shaft is fixedly connected with the rear rotating seat, limiting grooves are symmetrically arranged at positions corresponding to the fixing seat and the limiting shaft, and the limiting shaft is slidably connected with the limiting grooves.

6. The swivel chair chassis of claim 1, wherein a front shroud is disposed above the front swivel base, a rear shroud is disposed above the rear swivel base, and both the front shroud and the rear shroud are engaged with the tray.