CN201888556U - A seat with a variable center of gravity - Google Patents

Abstract

The utility model discloses a chair with variable gravity center, which comprises a seat plate, a backrest and a handrail fixing seat, wherein the backrest and the seat plate are movably connected through a backrest rotating shaft; the handrail fixing seat is provided with a guide rail, and the seat plate is movably arranged on the guide rail; the backrest is connected with a rotatable transmission rod, and the other end of the transmission rod is rotatably arranged on the handrail fixing seat; the seat plate is provided with a guide wheel and is movably arranged on the guide rail through the guide wheel; the backrest is provided with a clamping seat, the seat plate is provided with a rotatable adjusting rod, and the adjusting rod is clamped in the clamping seat. The utility model discloses a set up the guide rail on the handrail fixing base, set up the activity of seat board on the guide rail, make the seat board can horizontal slip to install rotatable transfer line between back and handrail fixing base, thereby make the utility model discloses both can regard as ordinary seat to use, the inclination of adjustable back again can also adjust the focus of seat when adjusting back inclination, therefore more comfortable, safer when using.

Description

A seat with a variable center of gravity

technical field

The utility model relates to the technical field of baby products, in particular to a seat.

Background technique

People feel tired if they sit for too long, and they want to lie down and rest for a while. For this reason, someone has invented the seat that the backrest can be rotated, that is, the angle of the backrest can be changed, such as a work chair, a seat on a luxury bus, etc. are more common. Increase the angle, the inclination angle here refers to the acute angle formed by the backrest and the horizontal plane, which makes the backrest more upright and more comfortable to lean on. If the seated person wants to lie down and have a rest, he only needs to turn the backrest backwards, and the inclination angle of the backrest is adjusted to be smaller, so that the backrest is relatively flat, and the person can lie on it to rest, thereby improving the comfort of the seat. However, when a person is sitting or lying down, the center of force applied to the seat is different, so that the center of gravity of the seat and the person as a whole will also change with the person sitting or lying down, and the seat's The pin is fixed, which will cause the center of gravity of the seat to be unstable, thereby affecting people's use. The same is true for infants and young children. A seat with a proper center of gravity is safe and conducive to the healthy growth of infants and young children.

Utility model content

The technical problem to be solved by the utility model is to provide a seat with reasonable structure, high comfort and variable center of gravity.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical scheme: a seat with a variable center of gravity, including a seat board, a backrest and an armrest fixing seat, the seat board is installed on the armrest fixing seat, and the backrest and the seat board pass through the backrest rotating shaft The two phases are movably connected, and it is characterized in that: the armrest fixing seat is provided with a guide rail, and the seat board is movably arranged on the guide rail; the backrest is connected with a rotatable transmission rod, and the other end of the transmission rod is rotatably installed on the armrest fixing seat.

Further, the seat board is equipped with guide wheels, and the seat board is movably arranged on the guide rail through the guide wheels, and the use of the guide wheels makes the seat board slide more smoothly and comfortably.

Further, a deck is provided on the backrest, and a rotatable adjustment rod is provided on the seat plate, and the adjustment rod is stuck in the deck, and is clamped and fixed by the adjustment rod when the backrest is adjusted to a different angle.

Further, the transmission rod is installed on the armrest fixing seat through the transmission rod shaft.

The utility model has a reasonable structure. On the basis of the backrest rotatable seat, the seat board is movably arranged on the guide rail by setting the guide rail on the armrest fixing seat, so that the seat board can slide horizontally, and the A rotatable transmission rod is installed, so that the utility model can be used as an ordinary seat, and the inclination angle of the backrest can be adjusted. When adjusting the inclination angle of the backrest, the center of gravity of the seat can also be adjusted, so it is more comfortable and convenient to use. safer.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic diagram of the utility model using state;

Fig. 3 is a schematic diagram of the second use state of the utility model.

In the figure, 1 is the seat board, 2 is the backrest, 3 is the armrest fixing seat, 4 is the transmission rod, 5 is the deck, 6 is the adjustment rod, 7 is the backrest rotation shaft, 8 is the guide rail, 9 is the guide wheel, and 10 is the drive shaft.

Detailed ways

In this embodiment, with reference to Fig. 1, Fig. 2 and Fig. 3, the seat with variable center of gravity includes a seat board 1, a backrest 2 and an armrest fixing seat 3, the seat board 1 is installed on the armrest fixing seat 3, and the backrest 2 It is movably connected with the seat board 1 through the backrest rotation shaft 7; the armrest fixed seat 3 is provided with a guide rail 8, and the seat board 1 is movable on the guide rail 8; One end is rotatably installed on the armrest fixing seat 3 .

Seat board 1 is equipped with guide wheel 9, and seat board 1 is movably located on the guide rail 8 by guide wheel 9, adopts guide wheel 9 to make seat board 1 more stable and comfortable when sliding.

Backrest 2 is provided with card seat 5, and seat board 1 is provided with rotatable adjusting lever 6, and adjusting lever 6 is stuck in the card seat 5, and is blocked and fixed with adjusting lever 6 when backrest 2 is transferred to different angles.

The transmission rod 4 is installed on the armrest fixing seat 3 through the transmission rod shaft 10 .

Working process: normal seated use state, referring to Figure 2, at this time the backrest 2 is nearly upright, the guide wheel 9 at the bottom of the seat board is located at the rearmost end of the guide rail 8, and the adjustment rod 6 is stuck on the lowermost locking tooth on the deck 5, Make sure that backrest 2 does not move.

In the flat-lying use state, refer to Figure 3. When you need to lie down and rest, first take out the adjustment rod 6, and then press the backrest 2 to a suitable angle. During the process of pressing the backrest 2, the transmission rod 4 exerts a reaction force on the backrest 2 , under the action of the transmission rod 4, the backrest 2 applies a force to the seat board 1 through the backrest rotation shaft 7, and due to the existence of the guide rail, the seat board 1 is pushed forward; when the backrest 2 is stopped, the seat board 1 also Stop moving forward, and now the guide wheel 9 moves to the front end of the guide rail 8; finally, the adjusting rod 6 is stuck on the suitable locking teeth of the deck 5. will change position. The state of motion when the backrest 2 is adjusted high is just the opposite.

The utility model has been described in detail above. The above description is only one of the preferred embodiments of the utility model, and should not limit the implementation scope of the utility model. Should still belong to the scope covered by the present utility model.

Claims (4)

1. seat that center of gravity is variable, comprise seat plate, backrest and handrail holder, seat plate is installed on the handrail holder, and backrest flexibly connects by the backrest turning cylinder mutually with seat plate, it is characterized in that: the handrail holder is provided with guide rail, and seat plate is actively installed on the guide rail; Be connected with rotating drive link on the backrest, the other end of drive link is installed in rotation on the handrail holder.

2. the variable seat of center of gravity according to claim 1, it is characterized in that: described seat plate is equipped with guide wheel, and seat plate is located on the guide rail movably by guide wheel.

3. the variable seat of center of gravity according to claim 1, it is characterized in that: described backrest is provided with deck, and seat plate is provided with rotating adjusting rod, and adjusting rod is stuck in the deck.

4. the variable seat of center of gravity according to claim 1, it is characterized in that: described drive link is installed on the handrail holder by the drive link axle.

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