CN219803518U

CN219803518U - Waist clamping and supporting seat

Info

Publication number: CN219803518U
Application number: CN202320788583.3U
Authority: CN
Inventors: 陈杰; 吴青松; 李建民; 朱强国; 陈发昆; 张淑婷; 刘星; 孙绍芳
Original assignee: Anji Shengxin Office Furniture Co ltd
Current assignee: Anji Shengxin Office Furniture Co ltd
Priority date: 2023-04-11
Filing date: 2023-04-11
Publication date: 2023-10-10
Anticipated expiration: 2033-04-11

Abstract

The utility model relates to the field of seat design and manufacture, in particular to a waist and back design of a seat. The technical aim of the utility model is realized by the following technical scheme: the utility model provides a press from both sides waist and hold in palm, contains back of body support, with human waist back is contradicted and with the elastomer that back of body frame is connected, the support contain the master support and with the master support rotates the auxiliary support of being connected, auxiliary support with back of body frame sliding connection, the elastomer with the master support is connected, and elasticity drive the master support is at fore-and-aft direction removal. The utility model aims to overcome the defects of the prior art and provide the waist support and the seat, wherein the waist support not only can effectively support the waist and back of a user, but also can provide dynamic and variable supporting effects, and the comfort of the seat is improved.

Description

Waist clamping and supporting seat

Technical Field

The utility model relates to the field of seat design and manufacture, in particular to a waist and back design of a seat.

Background

Seating is a piece of furniture that is very versatile in everyday life and generally comprises a base, a backrest, a support structure, armrests, etc. For example, chinese patent publication No. CN201620974125.9 discloses a seat, and people can get support from four positions of back, waist, buttocks and armrests during use, which increases comfort of human body.

In the use process of the seat, the supporting and abutting area of the seat and the waist and back part of the human body is large, and the position is a main supporting and stressing position, so that the comfort of the seat is determined to a great extent by the abutting structure of the seat on the waist and back of the human body. In order to enhance the feeling of the waist and back interference, the waist and back of the seat is often designed by adopting an elastic moving structure.

As disclosed in chinese patent publication No. CN201621312965.5, an automatic telescopic lumbar support structure for a seat is disclosed, in which a spring is connected between a lumbar support and a backrest, and the spring extends in a horizontal direction, so that the lumbar support is driven by the spring force to extend forward to cling to the lumbar of a human body. However, the technical proposal also has certain defects that the supporting effect of the waist support on the waist and back of the human body is monotonous and unchanged. In actual use of the user, the desk is in a normal office state and a resting state, when in the normal office state, the human body tends to lean forward and is closer to articles such as the desk and the display, and when in the resting state, the human body leans backward and is farther from the desk and the display. The telescopic waist support with the structure provides the same supporting mode in the two states, is monotonous and can not provide different supporting and abutting effects.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide the waist support and the seat, wherein the waist support not only can effectively support the waist and back of a user, but also can provide dynamic and variable supporting effects, and the comfort of the seat is improved.

The technical aim of the utility model is realized by the following technical scheme: the utility model provides a press from both sides waist and hold in palm, contains back of body support, with human waist back is contradicted and with the elastomer that back of body frame is connected, the support contain the master support and with the master support rotates the auxiliary support of being connected, auxiliary support with back of body frame sliding connection, the elastomer with the master support is connected, and elasticity drive the master support is at fore-and-aft direction removal.

Preferably, the auxiliary support is connected with the main support through a turnover device, the turnover device comprises a connecting arm connected with the main support and a connecting cylinder connected with the auxiliary support, a through hole is formed in the connecting arm, and the turnover device further comprises a rotating shaft connected with the connecting cylinder through the through hole.

Preferably, the number of the auxiliary brackets is two, and the main bracket is positioned between the two auxiliary brackets.

Preferably, the back frame comprises a supporting part and side extension parts positioned at two sides of the supporting part, the elastic body is connected to the supporting part, the auxiliary support is connected to the side extension parts in a sliding manner, and the back frame is arc-shaped and has a forward arc center direction.

Preferably, the auxiliary support is provided with a sliding pin, and the side extension part is provided with a slideway matched with the sliding pin.

Preferably, the back frame further includes an upper connecting portion extending in a vertical direction, and the upper connecting portion is located directly above the supporting portion.

In the present utility model, preferably, a rear avoiding portion protruding rearward is provided at a center position of the support portion.

In the present utility model, the master holder is preferably provided with a front abutment portion protruding forward.

Preferably, the elastic body is a spring or a cylinder.

A seat comprises a waist clamping waist support, a stool, a main back and chair legs, wherein the main back is connected with a back frame, and the chair legs are connected with the stool.

In summary, the utility model has the following beneficial effects:

1. the waist support not only can effectively support the waist and back of a user, but also can provide dynamic and changeable supporting effects, and the comfort of the seat is improved

2. The scheme adopts the design of split setting and bracket adjustment, and in the working state of a user, the waist and the back incline forward, and the whole support body has a large-area and flat supporting effect on the waist of the user.

3. In the resting state of the user, the waist is leaned back, the whole support body has the effects of clamping and arc-shaped support for the waist of the user, and the wrapping performance is strong.

4. Because the extension distance of the connecting arm exists, the auxiliary support is smoother in rotation and does not interfere with the main support; and the rotation is more stable, and the turnover device is more firm.

5. The middle part at the supporting part is provided with the back portion of keeping away that outwards abrupt towards the rear, keeps away the elastomer that the design is convenient for install the volume great after, and the outer abrupt of back portion can be thickened to guarantee to support the better structural support of elastomer.

6. The main back can be connected with different height positions of the upper connecting part, so that the installation height of the whole waist clamping and supporting device is flexible and adjustable.

Drawings

FIG. 1 is a schematic diagram of a first embodiment;

FIG. 2 is a schematic view of another orientation of FIG. 1;

fig. 3 is a schematic view of the hidden back frame of fig. 2.

In the figure: 1. the support body, 11, the master support, 111, the front supporting part, 12, the auxiliary support, 2, the back frame, 21, the part 211, the back avoiding part, 22, the side extension part, 23, the upper connecting part, 3, the elastic body, 31, the cylinder, 32, the spring, 4, the turnover device, 41, the connecting arm, 411, the through hole, 42, the connecting cylinder, 5 and the sliding pin.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.

Embodiment 1, as shown in fig. 1, a waist support comprises a back frame 2, wherein the back frame 2 is a structural frame. As shown in fig. 2, the back frame 2 is integrally of a circular arc design and includes a middle support portion 21, and two side extension portions 22 are respectively disposed on two sides of the middle support portion. An arc-shaped bracket integrally formed by a supporting part 21 and a side extension part 22 is arranged, and the arc center direction is forward.

In the scheme, a user is defined to sit on the seat, the facing direction is the front, the back facing direction is the back, and the left and right hand directions are the left and right sides.

The elastic body 3 has one end mounted on the support portion 21 and the other end mounted on the support body 1 for providing elastic force to the support body 1. The support body 1 is used as a part which is directly contacted with the waist and back of a human body, and the elastic force provided by the elastic body 3 is also directly transmitted to the human body through the support body 1. Unlike the prior art, in the present case, the support body 1 is designed as a split setting and a clip adjustment. Specifically, the support body 1 includes two parts, a master 11 and a slave 12. The number of auxiliary brackets 12 may be set according to the product, and in this embodiment, two auxiliary brackets 12 are provided and respectively disposed on both sides of the master bracket 11.

The main support 11 and the auxiliary support 12 are rotatably connected, and specifically, as shown in fig. 3, the turning device 4 includes a connecting arm 41. The number of the connecting arms 41 is two, the connecting arms 41 are connected to the main support 11, and through holes 411 are formed in the connecting arms 41. The auxiliary support 12 is provided with a connecting cylinder 42, and a user passes a rotating shaft extending in the vertical direction through the through hole 411 and the connecting cylinder 42, so that the auxiliary support 12 can rotate relative to the main support 11 by taking the rotating shaft as an axis. Moreover, due to the extending distance of the connecting arm 41, the rotating mode enables the rotating position to be far away from the main support 11, the auxiliary support 12 is smoother in rotating, and interference with the main support 11 is avoided; in addition, the connecting arm 41 has a self structure, and is matched with the structure of the connecting cylinder 42, so that the rotation is more stable, and the turnover device 4 is more firm.

The auxiliary support 12 is rotatably connected to the main support 11 on the one hand and is slidably connected to the back frame 2 on the other hand. As shown in fig. 3, a slide pin 5 is mounted on the back surface of the auxiliary support 12, and as shown in fig. 2, a slide rail is provided on the side extension 22, and the slide pin 5 slides in the slide rail.

The elastic body 3 has one end connected to the supporting portion 21 and the other end connected to the main bracket 11.

When the user is in a working mode, namely the body of the user leans forward, the waist of the human body faces forward, and the user tends to have a correct sitting posture, and the waist is straight. At this time, the elasticity of the elastic body 3 drives the main support 11 to move forward to prop against the waist and back of the human body. Due to the arcuate arrangement of the back frame 2, the auxiliary bracket 12 is located a little forward of the main bracket 11 in the front-rear direction. At this time, the main support 11 moves forward and is almost flush with the auxiliary supports 12 on the two sides in the front-rear direction, so that the main support 11 and the auxiliary supports 12 can be almost on the same plane, and the waist and the back of a human body can be supported in a flat and large area, and the supporting effect is comfortable.

When the user is in the resting mode, the body of the user leans backwards, the waist back faces backwards, and the whole waist back is often relaxed and has an arc radian. At this time, the elastic body 3 is compressed, the master 11 moves backward, and the auxiliary brackets 12 on both sides are positioned forward in the front-rear direction. At this time, the master 11 and the left and right slave 12 are not formed in a flat plane but are arranged in an arc shape. The circular arc arrangement has the effects of wrapping and attaching the waist and abdomen of the human body and clamping the waist. In this mode, the human body is not only behind the waist and back, but also the two sides of the waist and back are supported and attached, and the comfort level is high.

The realization of the elastic body 3 can be realized in different embodiments, as shown in fig. 3, and in some product embodiments, the elastic body can be realized by a mounting spring 32 alone, which has the advantages of controllable cost and simple mounting. In some product embodiments, this may be achieved by means of a cylinder 31 (hidden in the cylinder diagram). The cylinder has the advantages that the elastic force output is uniform and stable, and the valve is convenient to lock at the position of the appointed position. As shown in fig. 2, a rear avoidance portion 211 protruding rearward is provided in the middle of the supporting portion 21, and functions as two aspects, on the one hand, the rear avoidance design facilitates installation of the elastic body 3 with a larger volume, and on the other hand, the protrusion of the rear avoidance portion 211 can be thickened, thereby ensuring better structural support for the elastic body 3.

An upper connecting portion 23 extending upward is provided directly above the support portion 21, and the upper connecting portion 23 can be directly connected to a member such as a main back of the seat. The user can set adjusting ribs or adjusting holes and other parts on the upper connecting part 23, so that the main back can be connected with different height positions of the upper connecting part 23, and the installation height of the whole waist clamping and supporting device is flexible and adjustable.

A chair comprises the waist support, a stool, a main back and chair legs, wherein the main back is connected with a back frame, and the chair legs are connected with the stool.

Claims

1. The utility model provides a press from both sides waist and hold in palm, contains back of body frame (2), with support body (1) of human waist back conflict and with elastomer (3) that back of body frame (2) are connected, its characterized in that: the support body (1) comprises a main support (11) and an auxiliary support (12) rotationally connected with the main support (11), the auxiliary support (12) is in sliding connection with the back frame (2), the elastic body (3) is connected with the main support (11), and the main support (11) is driven to move in the front-back direction by elastic force.

2. The lumbar support as defined in claim 1, wherein: the auxiliary support (12) is connected with the main support (11) through a turnover device (4), the turnover device (4) comprises a connecting arm (41) connected with the main support (11) and a connecting cylinder (42) connected with the auxiliary support (12), a through hole (411) is formed in the connecting arm (41), and the turnover device (4) further comprises a rotating shaft connected with the connecting cylinder (42) through the through hole (411).

3. A lumbar support as claimed in claim 1 or 2, wherein: the number of the auxiliary brackets (12) is two, and the main bracket (11) is positioned between the two auxiliary brackets (12).

4. A lumbar support as set forth in claim 3, wherein: the back frame (2) comprises a supporting part (21) and side extension parts (22) arranged on two sides of the supporting part (21), the elastic body (3) is connected to the supporting part (21), the auxiliary support (12) is slidably connected to the side extension parts (22), and the back frame (2) is arc-shaped and has a forward arc center direction.

5. The lumbar support as set forth in claim 4, wherein: the auxiliary support (12) is provided with a sliding pin (5), and the side extension part (22) is provided with a slideway matched with the sliding pin (5).

6. The lumbar support as set forth in claim 4, wherein: the back frame (2) further comprises an upper connecting portion (23) extending in the vertical direction, and the upper connecting portion (23) is located right above the supporting portion (21).

7. The lumbar support as set forth in claim 4, wherein: a rear avoidance part (211) which protrudes and extends backwards is arranged at the center of the supporting part (21).

8. A lumbar support as claimed in claim 1 or 2, wherein: the main support (11) is provided with a front supporting part (111) protruding forwards.

9. A lumbar support as claimed in claim 1 or 2, wherein: the elastic body (3) is a spring (32) or a cylinder (31).

10. A seat comprising a lumbar support according to any one of claims 1 to 9, a bench, a main back and chair legs, said main back being connected to said back frame (2), said chair legs being connected to said bench.