CN209915474U - Simple rotary connecting structure suitable for waist support seat - Google Patents

Abstract

The utility model relates to the field of seat design and manufacture, in particular to a simple rotary connection structure suitable for a lumbar support seat. The utility model relates to the following technical solutions: a simple rotating connection structure suitable for a lumbar support seat, comprising a support body, the support body is connected with a rotating arm; the rotating connection structure further comprises an elastic body and a A fixing piece, one end of the elastic body is connected with the rotating arm, and the other end is connected with the fixing piece. The purpose of the utility model is to overcome the deficiencies of the prior art, and to provide a simple rotary connection structure suitable for a lumbar support seat, which is simple in structure, controllable in cost, convenient for implementation, and can fit the lumbar support along with the movements of the human body. Adjustment.

Description

A simple rotating connection structure suitable for lumbar support seat

technical field

The utility model relates to the field of seat design and manufacture, in particular to a simple rotary connection structure suitable for a lumbar support seat.

Background technique

Seat is a kind of furniture that is very widely used in daily work. It usually includes base, backrest, support structure, armrest and other components. In order to meet people's individual needs and bring a more comfortable and healthy experience, the structure of the seat and functions are constantly improving. When users use the seat, they often rely on the base and backrest to support their buttocks and back, while the support for the waist is relatively weak, and the muscles and vertebrae of the lower back of the human body will bear the pressure of the upper part of the human body. Muscle strain and vertebral disease bring inconvenience to people in study, life and work.

In recent years, in order to provide support for the waist, seats with lumbar support are appearing on the market. The lumbar support is connected to the base or the back to provide a good support for the user's waist, so that the sitting posture is upright and has a good effect on the lumbar spine. Good protection function. However, the position of the lumbar support of some lumbar support seats is fixed. Due to different factors such as the user's body shape and weight, the lumbar support seat cannot provide a good fit and support for each user. Some lumbar support seats have an elastic adjustment function, but the elastic provision method will use driving structures such as gas springs and gas rods placed under the seat. Although the support ability is good, the cost is expensive, which increases the production cost and sales of the entire seat. price.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art, and to provide a simple rotary connection structure suitable for a lumbar support seat, which is simple in structure, controllable in cost, convenient for implementation, and can fit the lumbar support along with the movements of the human body. Adjustment.

The above technical purpose of the present invention is achieved through the following technical solutions: a simple rotating connection structure suitable for a lumbar support seat, comprising a support body, the support body is connected with a rotating arm; the rotating connection structure also includes An elastic body and a fixing piece, one end of the elastic body is connected with the rotating arm, and the other end is connected with the fixing piece.

As a preference of the present invention, the support body is a lumbar support or a lumbar support.

As a preference of the present invention, the rotation direction of the rotating arm is a horizontal rotation direction.

As a preference of the present invention, the elastic body is a torsion spring, the rotating arm includes a rotating shell, one end of the torsion spring is connected with the rotating shell, and the other end is connected with the fixing member.

As a preferred feature of the present invention, the fixing member is connected to the polygonal shaft, the fixing member and the polygonal shaft both extend in the vertical direction, and the fixing member is provided with a polygonal groove into which the polygonal shaft extends.

As a preferred option of the present invention, the polygonal shaft is connected to the handrail.

As a preference of the present invention, the polygonal shaft is connected to the handrail through a fixing nut, and a washer is provided between the handrail and the fixing nut.

To sum up, the utility model has the following beneficial effects:

1. The waist support can be rotated to adapt to the sitting posture of the human body and support the waist in time.

2. The torsion spring is used as the power and elastic part, which can fit the waist and back of the human body, and has good comfort.

3. The cost is controllable and the structure is simple.

Description of drawings

Fig. 1 is the schematic diagram of embodiment one;

FIG. 2 is a schematic diagram at A of FIG. 1 .

In the figure: 1. Handrail, 2. Supporting body, 3. Swivel arm, 31. Rotating shell, 4. Elastomer, 5. Fixing piece, 6. Polygonal shaft, 7. Fixing nut, 8. Washer.

Detailed ways

The present utility model will be described in further detail below in conjunction with the accompanying drawings.

This specific embodiment is only an explanation of the present utility model, and it is not a limitation of the present utility model. Those skilled in the art can make modifications to the present embodiment without creative contribution as needed after reading this specification, but as long as the utility model is used in the present invention All new types of claims are protected by the patent law.

Embodiment 1 includes a support body 2, and the support body 2 may be a lumbar support or a backrest depending on the shape and height position. A rotating arm 3 is connected to the support body 2. When the user's waist moves, the support body 2 also moves in a fit manner, and the rotating arm 3 also rotates in the horizontal direction. As shown in FIG. 2 , the elasticity of the support body 2 is provided by the elastic body 4 in the figure.

In this embodiment, the elastic body 4 may be a torsion spring, one end of the torsion spring is in contact with the fixing member 5 , and the other end is in contact with the rotating shell 31 . The rotating arm 3 drives the rotating shell 31 to rotate, while the fixing member 5 is stationary. During the rotation of the support body 2 , the torsion spring is compressed by the relative movement of the rotating shell 31 and the fixing member 5 , thereby generating an elastic force, and finally the elastic force is fed back to the support body 2 .

The fixing member 5 extends in the vertical direction, and the handrail 1 is connected with a polygonal shaft 6. The polygonal shaft 6 can be a hexagonal shaft, which also extends in the vertical direction and is fixed to the handrail 1 by means of the fixing nuts 7 and washers 8 at the upper and lower ends. connect. The fixing member 5 may be provided with a slot for use with the polygonal shaft 6, so as to complete the fixed connection of the polygonal shaft 6, and the rotation in the horizontal direction will not occur.

So far, the support body 2 provides support for the waist or back of the human body. When the human body leans back, the torsion spring is compressed to generate elastic force, which is fed back to the back of the human body to provide sufficient support force. When the human body leans forward, the torsion spring rebounds, the support body 2 is reset, and it always fits the human body's back.

Claims (7)

1. A simple rotary connection structure suitable for a lumbar support seat, comprising a support body (2), characterized in that: the support body (2) is connected with a rotating arm (3); the rotary connection structure further comprises an elastic A body (4) and a fixing piece (5), one end of the elastic body (4) is connected with the rotating arm (3), and the other end is connected with the fixing piece (5). 2 . A simple rotary connection structure suitable for a lumbar support seat according to claim 1 , wherein the support body ( 2 ) is a lumbar support or a lumbar support. 3 . 3 . The simple rotating connection structure suitable for a lumbar support seat according to claim 1 , wherein the rotating direction of the rotating arm ( 3 ) is a horizontal rotating direction. 4 . 4. A simple rotating connection structure suitable for a lumbar support seat according to claim 1, characterized in that: the elastic body (4) is a torsion spring, and the rotating arm (3) includes a rotating shell (31), one end of the torsion spring is connected with the rotating shell (31), and the other end is connected with the fixing member (5). 5. A simple rotary connection structure suitable for a lumbar support seat according to claim 4, characterized in that: the fixing member (5) is connected with the polygonal shaft (6), and the fixing member (5) is connected with The polygonal shafts (6) all extend in the vertical direction, and the fixing member (5) is provided with a polygonal groove into which the polygonal shafts (6) extend. 6. A simple rotary connection structure suitable for a lumbar support seat according to claim 5, characterized in that: the polygonal shaft (6) is connected with the armrest (1). 7. A simple rotating connection structure suitable for a lumbar support seat according to claim 6, characterized in that: the polygonal shaft (6) is connected to the armrest (1) through a fixing nut (7), so that the A gasket (8) is arranged between the handrail (1) and the fixing nut (7).

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