CN215686103U

CN215686103U - Backrest adjustable seat

Info

Publication number: CN215686103U
Application number: CN202121541352.XU
Authority: CN
Inventors: 周子鹏
Original assignee: Golden Fuji Home Heshan Manufacturing Co ltd
Current assignee: Guangdong Sidilan Home Furnishing Co ltd
Priority date: 2021-07-07
Filing date: 2021-07-07
Publication date: 2022-02-01
Anticipated expiration: 2031-07-07

Abstract

The utility model discloses a chair with an adjustable backrest, which comprises a seat board, a back frame, backrest cloth and a supporting block, wherein a foot rest is arranged at the bottom of the seat board; the back frame is connected to one side of the seat board; the back frame is covered by cloth; the supporting block with back of the body frame sliding connection and built-in the supporting block to adjust the supporting block with the distance of bedplate, the supporting block orientation the one side of bedplate is provided with and is curved surface of leaning on. Through the slip supporting shoe, make the supporting shoe be located different positions to support the user's of different sizes waist, improve the comfort level.

Description

Backrest adjustable seat

Technical Field

The utility model relates to the field of seats, in particular to a seat with an adjustable backrest.

Background

The back of the existing seat is mostly concave backwards, slightly inclined straight or slightly outward convex. The bulges used for supporting in the seat are fixed at the same position, so that the requirement of people with different body types or physical constitutions on the position of the backrest cannot be met, and uncomfortable feeling is brought to the people.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a chair with an adjustable backrest, which can be adapted to users with different body sizes and improves the comfort level.

The seat with the adjustable backrest comprises a seat board, a back frame, backrest cloth and a supporting block, wherein a foot rest is arranged at the bottom of the seat board; the back frame is connected to one side of the seat board; the back frame is covered by cloth; the supporting block with back of the body frame sliding connection and built-in the supporting block to adjust the supporting block with the distance of bedplate, the supporting block orientation the one side of bedplate is provided with and is curved surface of leaning on.

The chair with the adjustable backrest, provided by the embodiment of the utility model, has at least the following beneficial effects: through the slip supporting shoe, make the supporting shoe be located different positions to support the user's of different sizes waist, improve the comfort level.

According to some embodiments of the utility model, two sides of the seat plate are respectively provided with a screw rod and a slide rod, the screw rod can rotate around an axis in the seat plate, the screw rod is sleeved with a moving block meshed with the screw rod, the slide rod is connected with a slide block in a sliding manner, and the moving block and the slide block are respectively fixed on two sides of the supporting block.

In some embodiments, a stepper motor is coupled to the screw.

According to some embodiments of the present invention, the support block includes a sliding part and a protrusion, two sides of the sliding part are respectively and fixedly connected to the moving block and the sliding block, an air cylinder is embedded in the sliding part, a driving shaft of the air cylinder is connected to the protrusion, and the backrest surface is disposed on the protrusion.

According to some embodiments of the utility model, a headrest is arranged on the top of the back frame, and a telescopic rod is arranged between the headrest and the back frame.

According to some embodiments of the utility model, the headrest is provided with cotton on the inside.

According to some embodiments of the utility model, the back frame and the seat pan are pivotally connected.

According to some embodiments of the utility model, a side of the back frame away from the seat plate is provided with a reset mechanism, and the other side of the back frame is provided with a limiting block for limiting the position of the back frame, and the limiting block is fixed on the seat plate.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the following figures and examples, in which:

FIG. 1 is a schematic view of an adjustable back rest seat according to an embodiment of the present invention;

fig. 2 is a schematic view of a back frame of a chair with an adjustable backrest according to an embodiment of the utility model.

100. A seat plate; 110. a foot rest; 120. a limiting block; 130. a reset mechanism; 200. a back frame; 210. a screw; 211. a moving block; 220. a slide bar; 221. a slider; 300. leaning on cloth; 400. a support block; 410. a backrest surface; 500. a stepping motor; 600. a headrest; 610. a telescopic rod.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 and 2, the chair with adjustable backrest according to the embodiment of the present invention includes a seat plate 100, a back frame 200, a backrest cloth 300, and a support block 400, wherein a foot rest 110 is provided at the bottom of the seat plate 100; a back frame 200 is connected to one side of the seat plate 100; the back frame 200 is covered by the cloth 300; the supporting block 400 is slidably connected with the back frame 200 and is concealed in the supporting block 400 to adjust the distance between the supporting block 400 and the seat plate 100, and an arc-shaped backrest surface 410 is arranged on one side of the supporting block 400 facing the seat plate 100.

In practical use, the seat plate 100 provides a sitting position for a user, and the user sits on the seat plate 100 and then leans back on the back frame 200, wherein the position of the supporting block 400 is adjusted according to the position of each waist to provide support for the waist of the user, wherein the supporting part is made of a material having a buffering effect such as sponge to reduce the load of the waist of the user, and wherein the backrest cloth 300 is covered outside the supporting block 400 and the back frame 200 to make the surface of the whole seat smoothly transit and fit the user, thereby improving comfort.

By sliding the support block 400, the support block 400 is located at different positions to support the waist of users of different body types, thereby improving comfort.

In some embodiments, a screw 210 and a sliding rod 220 are respectively disposed on two sides of the seat plate 100, the screw 210 can rotate around an axis in the seat plate 100, the screw 210 is sleeved with a moving block 211 engaged with the screw 210, the sliding rod 220 is slidably connected with a sliding block 221, and the moving block 211 and the sliding block 221 are respectively fixed on two sides of the supporting block 400.

When the waist support device is used, the screw rod 210 is driven to rotate around the axis by a driving element such as a motor, so that the moving block 211 moves on the screw rod 210, meanwhile, the slide block 221 moves on the slide rod 220, the support block 400 between the slide block 221 and the moving block 211 moves, and the position of the support block 400 is adjusted according to the position of the waist of each person, so that the waist of the user is supported.

In some embodiments, a stepper motor 500 is coupled to the screw 210. The stepping motor 500 is installed at the bottom of the seat plate 100, so that the space can be reasonably utilized, the influence on the use can be avoided, and in addition, the stepping motor 500 can improve the rotating accuracy of the screw 210, thereby improving the accuracy of changing the position of the supporting block 400.

In some embodiments, a headrest 600 is disposed on the top of the back frame 200, and a telescopic rod 610 is disposed between the headrest 600 and the back frame 200. The headrest 600 is used to provide support for the neck of a user to improve comfort, and the retractable rod 610 can adjust the height of the headrest 600 to fit users of different heights.

In some embodiments, cotton is disposed inside the headrest 600. The cotton has soft property, thereby providing soft support for the neck of a user, reducing the load of the neck and improving the comfort of the user.

In some embodiments, the back frame 200 and the seat plate 100 are rotatably coupled. The back frame 200 is rotated on the seat plate 100 to fit different sitting postures of the user, thereby improving the comfort.

In some embodiments, a side of the back frame 200 away from the seat plate 100 is provided with a return mechanism 130, and the other side is provided with a stopper 120 for restricting the position of the back frame 200, and the stopper 120 is fixed on the seat plate 100. Wherein, canceling release mechanical system 130 can be the mechanism that has the effect that resets such as cylinder spring, through canceling release mechanical system 130's effect, makes back of the body frame 200 have the trend towards the bedplate 100 direction upset all the time to support the user, simultaneously, utilize stopper 120 and back of the body frame 200 to offset, with the reset position of restraint back of the body frame 200, avoid its rotation range too big, guarantee normal use.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A seat with adjustable backrest, comprising:

a seat plate (100), the bottom of which is provided with a foot rest (110);

a back frame (200) connected to one side of the seat plate (100);

a cloth support (300) covering the back frame (200);

the supporting block (400) and back frame (200) sliding connection and interior being hidden in supporting block (400) to adjust supporting block (400) with the distance of bedplate (100), supporting block (400) orientation one side of bedplate (100) is provided with and is curved back to the face (410).

2. The chair with the adjustable backrest as claimed in claim 1, wherein a screw rod (210) and a sliding rod (220) are respectively arranged on two sides of the seat plate (100), the screw rod (210) can rotate around an axis in the seat plate (100), a moving block (211) meshed with the screw rod (210) is sleeved on the screw rod (210), a sliding block (221) is slidably connected with the sliding rod (220), and the moving block (211) and the sliding block (221) are respectively fixed on two sides of the supporting block (400).

3. The adjustable back seat according to claim 2, wherein a stepper motor (500) is connected to the screw (210).

4. The chair with adjustable backrest according to claim 1, characterized in that a headrest (600) is arranged on the top of the back frame (200), and a telescopic rod (610) is arranged between the headrest (600) and the back frame (200).

5. The adjustable back seat of claim 4, wherein the headrest (600) is provided with cotton inside.

6. The adjustable back seat of claim 1, wherein the back frame (200) and the seat pan (100) are rotatably connected.

7. The chair with the adjustable backrest as claimed in claim 6, wherein a side of the back frame (200) away from the seat plate (100) is provided with a return mechanism (130), and the other side is provided with a limit block (120) for restricting the position of the back frame (200), and the limit block (120) is fixed on the seat plate (100).