CN104398041A - Anti-noise and anti-vibration slidable chair - Google Patents

Abstract

The invention discloses an anti-noise and anti-vibration slidable chair which comprises a chair surface (8) and chair legs (9), wherein the bottom of each chair leg (9) is connected to a hollow retractable slide rod (7) in a sleeving manner; the inner cavity of each hollow retractable slide rod (7) is divided into an upper cavity (10) and a lower cavity (11) by a partition plate (12); a retractable rotating shaft (4) is mounted inside each lower cavity (11); a spring (3) sleeves the upper part of each retractable rotating shaft (4); a rolling wheel (1) is mounted at the bottom of each retractable rotating shaft (4); an annular clamping groove (5) for allowing clamping pins (2) on each slide rod (7) to be inserted into is formed in the middle of each retractable rotating shaft (4). Through the use of the slidable chair, the noise generated during the chair pulling can be effectively reduced, the unnecessary movement of the chair caused by the fact the body is moved inadvertently can be prevented, and the service life of the chair can be prolonged to a large extent.

Description

Noise-proof and shock-proof slidable chair

technical field

The invention relates to a chair, in particular to a noise-proof and shock-proof slidable chair.

Background technique

Many times, keeping the same sitting posture for a long time will cause fatigue, and at this time, the chair is often dragged to adjust the sitting posture, but in a quiet place like a library, the sound of dragging the chair may affect others' learning, and generally brings A chair with casters can move when you inadvertently move your body, causing inconvenience.

Contents of the invention

The technical problem to be solved by the present invention is to provide a noise-proof and shock-proof sliding chair, which can effectively reduce the noise when people drag the chair, and can also prevent unnecessary movement of the chair caused by inadvertently moving the body.

The present invention adopts the following technical solutions to achieve the above object:

The anti-noise and anti-shock slidable chair of the present invention comprises a seat surface 8 and chair legs 9, the bottom of each chair leg 9 is socketed with a hollow telescopic slide bar 7, and the inner cavity of the hollow telescopic slide bar 7 is divided by a partition 12. The upper cavity 10 and the lower cavity 11, the lower cavity 11 is equipped with a telescopic rotating shaft 4, the upper part of the telescopic rotating shaft 4 is covered with a spring 3, and the displacement of the telescopic rotating shaft 4 in the vertical direction is limited by the spring 3, The bottom of the telescopic rotating shaft 4 is provided with a roller 1, and the middle part of the telescopic rotating shaft 4 is provided with an annular slot 5 for inserting the bayonet pin 2 of the slide bar 7.

A shock absorber 6 is installed in the upper cavity 10 of the hollow telescopic slide bar 7 , one end of the shock absorber 6 is fixedly connected with the partition plate 12 , and the other end is fixedly connected with the chair leg 9 .

The upper part of the telescopic rotating shaft 4 is socketed with the sleeve below the partition plate 12 and can slide up and down along the sleeve.

The present invention has following beneficial effects:

The sliding chair of the present invention can effectively reduce the noise generated when the chair is dragged, and can also prevent unnecessary movement of the chair caused by inadvertently moving the body. At the same time, the shock absorber provided can also prolong the service life of the chair to a great extent.

Description of drawings

Fig. 1 is a schematic structural view of the slideable chair of the present invention.

FIG. 2 is a partial sectional view of FIG. 1 .

In the figure: roller 1, bayonet pin 2, spring 3, telescopic shaft 4, annular slot 5, shock absorber 6, hollow telescopic slide bar 7, chair surface 8, chair legs 9, upper cavity 10, lower cavity 11. Partition plate 12.

Detailed ways

The technical scheme of the present invention will be further described below in conjunction with accompanying drawing and embodiment:

As shown in Figure 1, the anti-noise and anti-vibration sliding chair of the present invention is made up of chair surface 8, chair leg 9, and the bottom of each chair leg 9 is socketed with hollow telescopic slide bar 7, and the inner chamber of hollow telescopic slide bar 7 The partition 12 is divided into an upper cavity 10 and a lower cavity 11. The lower cavity 11 is provided with a sleeve fixed under the partition. The upper part of the telescopic shaft 4 is inserted into the sleeve and can move up and down along the sleeve. The upper part of the telescopic rotating shaft 4 is covered with a spring 3 placed on the outside of the sleeve, the top of the spring 3 is fixedly connected with the partition, and the bottom end is fixedly connected with the middle part of the telescopic rotating shaft 4, and the telescopic rotating shaft 4 is vertically connected by the spring 3. Displacement in the vertical direction is restricted. The bottom of the telescopic rotating shaft 4 is equipped with a roller 1, and the middle part of the telescopic rotating shaft 4 is provided with an annular slot 5 for inserting the bayonet pin 2 on the slide bar 7, which can realize 360-degree snap-in; Shock absorber 6 is installed in cavity 10, and one end of shock absorber 6 is fixedly connected with dividing plate 12, and the other end is fixedly connected with chair leg 9, and shock absorber 6 can not move left and right, and can only deform vertically.

The working principle and use process of the sliding chair of the present invention are as follows:

When people intend to move the chair, they can reduce the pressure on the chair with the help of their legs. At this time, the pressure on the spring 3 at the bottom of the chair leg will also be reduced, and the spring 3 has a tendency to return to its original shape, so it will drive the chair. The telescopic rotating shaft 4 moves down and breaks through the shackles brought by the bayonet pin 2 to make the roller 1 eject to the ground. At this moment, the sliding friction when people move the chair becomes rolling friction, the resistance decreases, and the noise also reduces. After people position the chair and sit back on the chair completely, the pressure increases again, the spring 3 is compressed, and drives the telescopic rotating shaft 4 to move up, thereby driving the roller 1 to retract into the chair leg, and the bayonet pin 2 is inserted accordingly Locking in the annular draw-in groove 5 of retractable rotating shaft 4 makes roller 1 leave a certain distance from the ground, and when people move their bodies inadvertently like this, the chair will not move unnecessarily. Simultaneously, adding a shock absorber 6 in the leg of the chair can slow down the pressure on the rotating bearing of the roller 1 and slow down its aging speed, and the deformation of the vertical direction of the shock absorber 6 can be achieved by changing the length of the hollow telescopic slide bar 7 to fulfill.

Claims (3)

1. the slidably chair that a noise control is shockproof, comprise seat (8), chair leg (9), it is characterized in that, the hollow scalable slide bar (7) of bottom socket of described each chair leg (9), the inner chamber of hollow scalable slide bar (7) is divided into upper plenum (10) and lower cavity (11) by dividing plate (12), in lower cavity (11), scalable rotating shaft (4) is installed, the top cover of scalable rotating shaft (4) has spring (3), by spring (3), the displacement of scalable rotating shaft (4) in the vertical direction is limited, the bottom of scalable rotating shaft (4) is provided with roller (1), the middle part of scalable rotating shaft (4) is provided with the annular slot (5) inserted for the bayonet lock (2) on slide bar (7).

2. the slidably chair that noise control is shockproof according to claim 1, it is characterized in that, in the upper plenum (10) of described hollow scalable slide bar (7), damper (6) is installed, one end of damper (6) is fixedly connected with dividing plate (12), and the other end is fixedly connected with chair leg (9).

3. the slidably chair that noise control is shockproof according to claim 1 or 2, is characterized in that, the sleeve of the top of described scalable rotating shaft (4) and dividing plate (12) below is socketed and can slides up and down along sleeve.