CN219088774U

CN219088774U - Horizontal rotating structure of waist rest

Info

Publication number: CN219088774U
Application number: CN202223603960.6U
Authority: CN
Inventors: 朱志华; 黄勋; 杜一凡
Original assignee: Anji Boyu Intelligent Furniture Technology Co ltd
Current assignee: Anji Boyu Intelligent Furniture Technology Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-05-30
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a horizontal rotating structure of a lumbar support, which comprises a supporting seat, a rotating piece and an elastic piece, wherein the supporting seat is configured to support a main body of the structure; a rotating groove is formed in the supporting seat, and a limiting boss is arranged in the rotating groove; the rotating piece is rotatably arranged in the rotating groove of the supporting seat and is configured to be connected with the waist supporting piece; the rotating piece comprises a main body part and a limiting part; the elastic piece is arranged between the supporting seat and the rotating piece and is configured to give a trend that the limiting part is clung to the limiting boss towards one direction; when the waist support piece is stressed, the rotating piece can rotate in the limiting range so as to drive the waist support piece to rotate; when the waist support piece is not stressed any more, the rotating piece resets so as to drive the waist support piece to reset; the rotation and the reset of the rotating piece enable the structure to adapt to crowds with different body types, and the rotating piece can also adaptively rotate under different human body postures, so that the comfort is improved.

Description

Horizontal rotating structure of waist rest

Technical Field

The utility model relates to the field of furniture, in particular to a horizontal rotating structure of a lumbar support.

Background

Most of office chairs in the market at present are of a single integral frame structure, and the office chairs are large in size and heavy in weight, so that the office chairs are inconvenient to assemble and have high packaging and transportation costs; the single back seat has the following defects: the spine shape of the user cannot be matched to fit and support the back and the waist of the user, and targeted support cannot be achieved; the spine of people sitting on the single-back chair for a long time is extruded for a long time, so that the people can not rest; or the waist is suspended and loses support, so that the spine is diseased due to the problem of poor sitting posture; therefore, in the prior art, in order to make the use of the seat more comfortable, more and more manufacturers have designed various seats with a double-back structure and a triple-back structure; the chair is provided with a plurality of chair backs to better support the back of a human body in a partitioned manner.

The three-back structure usually adopts a double-waist-rest form, namely the lower back is divided into a left part and a right part to respectively support the left waist and the right waist of a human body, and the chair back form can solve the problems of assembly, packaging, transportation and the like and can more reasonably support the waist and the back of the human body; however, the two waistrests of the existing seat are fixed, and an included angle is formed between the two waistrests so as to avoid the vertebra to support the waist, so that people with different body types can feel different on the two waistrests, a thinner user feels comfortable, and a fatter user feels uncomfortable; and the human body is sitting on the seat and cannot always keep the same posture, and when the posture of the human body is changed, the fixed lumbar support can also influence the comfort of the seat.

Therefore, in order to fit people of different sizes and further improve comfort, the lumbar support needs to have a rotating function.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a horizontal rotating structure of a lumbar support, which comprises a supporting seat, a rotating piece and an elastic piece, wherein the rotating piece is used for connecting the lumbar support and is rotatably arranged in a rotating groove of the supporting seat, and a limiting part is abutted to a limiting boss under the action of the elastic piece, so that when the lumbar support is stressed, the rotating piece can rotate in a limiting range to drive the lumbar support to rotate; when the waist support piece is not stressed any more, the rotating piece resets so as to drive the waist support piece to reset; the rotation and the reset of the rotating piece enable the structure to adapt to crowds with different body types, and the rotating piece can also adaptively rotate under different human body postures, so that the comfort is improved.

The technical scheme of the utility model is realized as follows:

a horizontal turning structure of a lumbar support, comprising:

a support base configured to support the main body of the structure; a rotating groove is formed in the supporting seat, and a limiting boss is arranged in the rotating groove;

the rotating piece is rotatably arranged in the rotating groove of the supporting seat and is configured to be connected with the waist supporting piece; the rotating piece comprises a main body part and a limiting part;

and the elastic piece is arranged between the supporting seat and the rotating piece and is configured to give the limit part a trend of leaning against the limit boss towards one direction.

The rotating piece is connected with the supporting seat and the waist supporting piece, so that the waist supporting piece is rotatably arranged on the supporting seat, the rotating function of the waist supporting piece is realized, and meanwhile, the elastic piece is arranged between the rotating piece and the supporting seat, so that the rotating piece can reset after rotating, and the self-adapting function of the waist supporting piece is realized; when the waist support piece is stressed, the rotating piece can rotate in the limiting range so as to drive the waist support piece to rotate; when the waist support piece is not stressed any more, the rotating piece resets so as to drive the waist support piece to reset; the rotation and the reset of the rotating piece enable the structure to adapt to crowds with different body types, and the rotating piece can also adaptively rotate under different human body postures, so that the comfort is improved.

Preferably, the rotating member further includes a locking portion protruding upward from the main body portion, and the locking portion is configured to rotate the lumbar support in synchronization with the rotating member after being coupled to the lumbar support. The locking part is used for keeping the rotating piece and the waist support piece stationary and synchronously rotating, so that the rotating piece can rotate and reset, and the waist support piece can be overfull.

Preferably, the locking portion decreases in size from bottom to top. The locking part is inserted into the waist support piece from bottom to top, and the locking part is connected more conveniently and rapidly due to the size change of the locking part.

Preferably, the locking portion is a hexagonal boss. The shape of the locking part can ensure that the locking part and the waist support piece can not mutually rotate after being connected, thereby effectively realizing synchronous rotation of the rotating piece and the waist support piece.

Preferably, the limiting portion protrudes downwards from the main body portion, and the limiting boss protrudes towards the center from the inner wall of the rotating groove. After the rotating piece is arranged in the rotating groove, the protruding limiting part and the limiting boss realize the limiting of the rotating piece.

Preferably, the elastic member is a torsion spring. Torsion springs are common and low cost.

Preferably, the support seat is provided with a vertical rotating column, the rotating column is positioned in the middle of the rotating groove, and the torsion spring is sleeved on the rotating column; the middle part of the rotating piece is provided with a jack which is penetrated up and down, and the rotating column is inserted in the jack. The rotation column is matched with the jack and the rotation piece is matched with the rotation groove, so that the rotation piece and the support seat rotate more stably, and the connection stability of the waist support piece on the support seat and the rotation stability of the waist support piece are improved.

Preferably, the torsion spring comprises a first torsion arm and a second torsion arm, a first accommodating groove is formed in the bottom of the rotation groove downwards, a second accommodating groove is formed in the inner wall of the jack, the first torsion arm is inserted into the first accommodating groove, and the second torsion arm is inserted into the second accommodating groove.

The design starting point, the idea and the beneficial effects of the utility model adopting the technical scheme are as follows:

Drawings

Fig. 1 is a schematic perspective view of a lumbar support mounted on a back support in an embodiment of the present utility model;

fig. 2 is a schematic perspective view showing a waist support mounted on a back support in the second embodiment of the present utility model;

fig. 3 is a schematic perspective view of a supporting seat according to an embodiment of the utility model;

fig. 4 is a schematic diagram showing a three-dimensional structure of a supporting seat according to a second embodiment of the present utility model;

figure 5 is a rear view of the lumbar support in an embodiment of the present utility model attached to a support;

figure 6 is a cross-sectional view of the lumbar support and support connection in an embodiment of the present utility model;

figure 7 is an exploded view of the lumbar support to support connection in an embodiment of the present utility model;

FIG. 8 is a schematic perspective view of a rotating member according to an embodiment of the present utility model;

fig. 9 is a schematic perspective view of a lumbar support according to an embodiment of the present utility model.

The reference numerals are as follows: a support base 1; a support portion 11; a wing 12; a rotating seat 13; a rotating member 2; a main body 21; a limit part 22; a locking portion 23; a jack 24; a torsion spring 3; a first torsion arm 31; second torsion arm 32; a lumbar support 4; a mounting groove 41; a back support 5; a rotating groove 6; a limit boss 7; a rotating column 8; a first accommodation groove 9; the second accommodation groove 10.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced in other ways than those described herein, and therefore the scope of the present utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The specific embodiments of the present utility model are as follows:

as shown in fig. 6 and 7, the present utility model provides a horizontal rotation structure of a lumbar support, comprising:

a support base 1 configured to support a main body of the structure; a rotating groove 6 is formed in the supporting seat 1, and a limiting boss 7 is arranged in the rotating groove 6;

a rotation member 2 rotatably provided in the rotation groove 6 of the support base 1 and configured to be coupled to the lumbar support member 4; the rotor 2 includes a main body portion 21 and a stopper portion 22;

an elastic member disposed between the support base 1 and the rotation member 2 and configured to give the limit portion 22 a tendency to abut against the limit boss 7 in one direction.

The rotating piece 2 is connected with the supporting seat 1 and the waist supporting piece 4, so that the waist supporting piece 4 is rotatably arranged on the supporting seat 1, the rotating function of the waist supporting piece 4 is realized, and meanwhile, an elastic piece is arranged between the rotating piece 2 and the supporting seat 1, so that the rotating piece 2 can reset after rotating, and the self-adapting function of the waist supporting piece 4 is realized; when the waist support 4 is stressed, the rotating piece 2 can rotate in a limiting range so as to drive the waist support 4 to rotate; when the waist support 4 is not stressed any more, the rotating piece 2 resets so as to drive the waist support 4 to reset; the rotation and the reset of the rotating piece 2 enable the structure to adapt to crowds with different body types, and the structure can also adaptively rotate under different human body postures, so that the comfort is improved.

Specifically, as shown in fig. 1-5, the support seat 1 is substantially T-shaped, and includes a support portion 11 and two wing portions 12, where the two wing portions 12 are symmetrically disposed on the left and right sides of the support portion 11, and the support portion 11 is used for indirectly or directly connecting the back support 5; the wing part 12 is provided with a cylindrical rotating seat 13, the rotating groove 6 is arranged on the rotating column 8, the rotating groove 6 is opened upwards, the middle part of the bottom surface of the rotating groove 6 is upwards protruded with a vertical rotating column 8, and the upper end of the rotating column 8 exceeds the rotating seat 13; the two limiting bosses 7 are protruded from the inner wall of the rotary groove 6 towards the rotary column 8, and the two limiting bosses 7 are arranged symmetrically relative to the center of the rotary column 8.

As shown in fig. 8 and 9, the rotating member 2 further includes a locking portion 23 protruding upward from the main body 21, the locking portion 23 is configured to connect the lumbar support 4 and then enable the lumbar support 4 to rotate synchronously with the rotating member 2, the locking portion 23 is a hexagonal boss, and the size of the locking portion 23 gradually decreases from bottom to top, and the lumbar support 4 is correspondingly provided with a mounting groove 41 to accommodate the locking portion 23 and a part of the main body 21.

Corresponding to the limiting bosses 7, two limiting portions 22 are arranged, the two limiting portions 22 are arranged below the main body portion 21 in a central symmetry mode and protrude out of the main body portion 21, and after the rotating piece 2 is arranged in the rotating groove 6, the protruding limiting portions 22 and the limiting bosses 7 achieve limiting of the rotating piece 2.

Corresponding to the rotary column 8, a jack 24 which is penetrated up and down is arranged in the middle of the rotary piece 2, the rotary column 8 is inserted into the jack 24, and the upper end of the rotary column 8 exceeds the rotary piece 2 and is inserted into the back support piece; the rotating column 8 is hollow, and a locking screw is arranged in the hollow part of the rotating column 8 to connect the supporting seat 1, the rotating piece 2 and the waist supporting piece 4 together.

The elastic piece is a torsion spring 3, and the torsion spring 3 is sleeved on the rotating column 8; the torsion spring 3 comprises a first torsion arm 31 and a second torsion arm 32, a first accommodating groove 9 is formed in the bottom surface of the rotating groove 6, a second accommodating groove 10 is formed in the inner wall of the jack 24, the first torsion arm 31 is inserted into the first accommodating groove 9, and the second torsion arm 32 is inserted into the second accommodating groove 10; in the initial state, the torsion spring 3 makes the lumbar support 4 rotate inwards, so that the limiting part 22 is attached to the limiting boss 7, when a human body leans on the lumbar support 4, the lumbar support 4 is forced to rotate outwards, but the torsion spring 3 still gives the elastic force for inwards rotating (namely resetting) the lumbar support 4.

As shown in fig. 1, 2 and 5, the wing parts 12 on both sides of the supporting seat 1 are provided with the waist supporting members 4 in a rotating manner, and the waist supporting members 4 on both sides have the functions of rotating and resetting, so as to adapt to different crowds with different body shapes and different human body postures, and improve the comfort.

Claims

1. A horizontal turning structure of a lumbar support, comprising:

2. The lumbar support horizontal turning structure of claim 1, wherein: the rotating member further includes a locking portion protruding upward from the main body portion, and the locking portion is configured to connect to the lumbar support member to enable the lumbar support member to rotate synchronously with the rotating member.

3. The lumbar support horizontal turning structure of claim 2, wherein: the size of the locking portion decreases from bottom to top.

4. The lumbar support horizontal turning structure of claim 2, wherein: the locking part is a hexagonal boss.

5. The lumbar support horizontal turning structure of claim 1, wherein: the limiting part protrudes downwards from the main body part, and the limiting boss protrudes towards the center from the inner wall of the rotating groove.

6. The lumbar support horizontal turning structure of claim 1, wherein: the elastic piece is a torsion spring.

7. The lumbar support horizontal turning structure of claim 6, wherein: the support seat is provided with a vertical rotating column, the rotating column is positioned in the middle of the rotating groove, and the torsion spring is sleeved on the rotating column; the middle part of the rotating piece is provided with a jack which is penetrated up and down, and the rotating column is inserted in the jack.

8. The lumbar support horizontal turning structure of claim 7, wherein: the torsional spring comprises a first torsion arm and a second torsion arm, a first accommodating groove is formed in the bottom face of the rotating groove downwards, a second accommodating groove is formed in the inner wall of the jack, the first torsion arm is inserted into the first accommodating groove, and the second torsion arm is inserted into the second accommodating groove.