CN218635642U

CN218635642U - Seat with adjustable waist rest

Info

Publication number: CN218635642U
Application number: CN202222349673.0U
Authority: CN
Inventors: 罗慧平; 杨惠红; 曹旭林; 方奇浩
Original assignee: Foshan Kezhimei Furniture Co ltd
Current assignee: Foshan Kezhimei Furniture Co ltd
Priority date: 2022-09-02
Filing date: 2022-09-02
Publication date: 2023-03-17
Anticipated expiration: 2032-09-02

Abstract

The utility model relates to a seat with adjustable waist is leaned on belongs to the technical field of seat, and it includes the back of the chair, is provided with the waist on the back of the chair and leans on the subassembly, and the waist is leaned on the subassembly to include waist and leans on the portion and slide and set up the mounting panel on the back of the chair, and the waist is leaned on the portion and is rotated with the mounting panel through rotating part and be connected, and one side that the back of the chair was kept away from to waist has the leaning on curved surface that supplies the user to lean on, leaning on curved surface and human waist laminating. The waist support has the effect of effectively keeping fit with the waist of a human body while adjusting the height of the waist support part.

Description

Seat with adjustable waist rest

Technical Field

The application relates to the technical field of seats, in particular to a seat with an adjustable waist rest.

Background

In recent years, with the development of social economy, the pace of life of people is accelerated, more and more people are working for learning and working, and more people become a family of sedentary people. Therefore, whether the chair is safe and comfortable becomes the primary requirement for people to select the chair. Although the existing chair has a chair back, the lines of the chair back are stiff and do not meet the requirement of body curves, independent support can not be provided for all parts of the body, the support force can not be adjusted, the sitting time is long, the body is easy to fatigue, and because the support force can not be adjusted, the support force applied to all parts of the body is different, certain parts of the body can be uncomfortable after a long time, the people feel uncomfortable, and the people can feel weak, are sore and ache all over the body and have chronic back problems due to the long-time sitting.

In the related art, the existing seats in the market are basically not provided with a lumbar support part, usually, after a human body sits on the seat, the backrest supports the waist of the human body and supports the waist at the same time, and the comfort is poor; although some chairs are provided with waist support structures, the waist support structures often cannot generate corresponding deformation along with the change of the leaning and leaning sitting postures of users, cannot effectively support the waist of the users in real time, and are poor in flexibility and comfort; some lumbar support structures have a certain degree of self-adaptability, but the self-adaption degree is low, the structures are very complex, and the cost is high.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the application provides a seat with an adjustable lumbar support.

The application provides a seat with adjustable waist leans on adopts following technical scheme:

the utility model provides a seat with adjustable waist is leaned on, includes the back of the chair, be provided with the waist on the back of the chair and lean on the subassembly, the waist is leaned on the subassembly and is included waist portion and slide and set up the mounting panel on the back of the chair, the waist is leaned on portion and is rotated with the mounting panel through rotation portion and be connected, one side that the waist was kept away from the back of the chair has the leaning on curved surface that supplies the user to lean on in portion, leaning on curved surface and the laminating of human waist.

By adopting the technical scheme, when people sit on the seat and lean backwards, the waist of people leans against the waist leaning part, and the waist leaning part is rotationally connected with the mounting plate through the rotating part, so that the waist of people can be taken as a rotating point along with the waist leaning part, and the upper end of the waist leaning part is stressed by utilizing the lever principle, so that the lower end of the waist leaning part is upwards tilted and attached to the waist, and the waist leaning part overcomes the defect that the waist is not attached to the waist;

compared with the prior art, the waist support part can not effectively support the waist of the user in real time and can not be jointed with the waist of the human body; in this application, because the mounting panel slides and sets up on the back of the chair, can adjust the height of waist portion effectively, and the effect that can remain the laminating with human waist effectively when adjusting waist portion height still.

Optionally, the rotating part is a torsion spring, a connecting seat is arranged on one side of the lumbar support part facing the chair back, and the connecting seat is located in the middle of the lumbar support part; the connecting seat is provided with a connecting groove, the mounting plate is convexly provided with a mounting block with a connecting hole, the mounting block is positioned in the connecting groove, and the connecting seat is provided with a connecting screw which is used for rotatably connecting the mounting block and the connecting seat; the torsional spring sets up in the connecting hole, just one end butt of torsional spring is on the connecting seat, and the other end butt is on the mounting panel.

By adopting the technical scheme, when no person sits on the seat or the person leans backwards, the waist rest part can keep a parallel state relative to the seat back because the torsion spring is supported in the middle of the waist rest part; when people sit on the seat and lean against the seat backwards, the force of the waist of the human body acting on the upper end of the waist leaning part enables the waist leaning part to rotate by taking the mounting block as an axis, and the waist leaning part tilts the lower end of the waist leaning part in a self-adaptive manner under the elastic action of the torsion spring so as to enable the whole waist leaning part to be attached to the waist of the human body.

Optionally, the connecting seat has first connecting block and the second connecting block that is located the spread groove both sides, the spacing groove has been seted up on first connecting block and the second connecting block, the butt piece that is located the installation piece both sides has on the mounting panel, the butt piece slides and sets up in the spacing inslot.

Through adopting above-mentioned technical scheme, when the waist leans on the portion to rotate on the mounting panel, the butt joint piece on the mounting panel can slide with the spacing groove and be connected to make the spacing groove carry on spacingly to the butt joint piece, thereby make the mounting panel can be on the connecting seat stable rotation connect.

Optionally, the rotation portion is a pressure spring, one end of the pressure spring is connected with the mounting plate, the other end of the pressure spring is connected with one side, facing the chair back, of the lumbar support portion, and the pressure spring is connected to the middle of the lumbar support portion.

Through adopting above-mentioned technical scheme, lean on when leaning on backward in the portion by the waist when people's waist, the portion by the waist uses the pressure spring as the fulcrum, utilizes the seesaw principle, and the portion upper end atress is leaned on to the waist, and the pressure spring can deform production elasticity equally so that the portion lower extreme upwarps upwards leans on, and the laminating is on human waist.

Optionally, a first rotating plate is arranged on one side, facing the lumbar support portion, of the mounting plate, a second rotating plate is arranged on one side, facing the chair back, of the lumbar support portion, and the first rotating plate is rotatably connected with the second rotating plate.

Through adopting above-mentioned technical scheme, first rotating plate rotates with the second rotating plate to be connected, has realized that the rotation of waist portion and mounting panel is connected to pivoted stability has been improved.

Optionally, the number of the first rotating plate and the second rotating plate is two, and the two first rotating plates and the two second rotating plates are connected in a pairwise rotating manner.

Through adopting above-mentioned technical scheme, two liang of rotation of two first rotating plates and second rotating plate are connected, can further improve the stability that the rotation of waist portion of leaning on and mounting panel is connected.

Optionally, the tip of the back of the chair still is provided with head rest portion, be provided with the regulating plate on the back of the chair, the adjustment tank has been seted up on the regulating plate, be connected with the fixed plate in the head rest portion, the one end and the head rest portion of fixed plate are connected, and the other end passes the adjustment tank and is connected with the mounting panel, just fixed plate and regulating plate swing joint.

Through adopting above-mentioned technical scheme, because the one end and the head rest portion of fixed plate are connected, and the other end passes the regulating plate and is connected with the mounting panel, when people of different heights sat on the chair, only need adjust the position control that head rest portion and waist leaned on the portion of head rest portion on the back of the chair, improved the efficiency of adjusting head rest portion and waist and leaned on a position effectively.

Optionally, the headrest is movably linked with the fixing plate.

Through adopting above-mentioned technical scheme, head rest portion and fixed plate active link adjust the position of head rest portion to it is more comfortable that people's head rest portion is leaned on to be convenient for.

In summary, the present application includes at least one of the following beneficial technical effects:

1. in the application, the mounting plate is arranged on the chair back in a sliding manner, so that the height of the waist support part can be effectively adjusted, and the effect of fitting with the waist of a human body can be effectively kept while the height of the waist support part is adjusted;

2. when the waist of a person leans against the waist support part and leans back, the waist support part takes the pressure spring as a fulcrum, the upper end of the waist support part is stressed by utilizing the seesaw principle, and the pressure spring can also deform to generate elasticity so that the lower end of the waist support part tilts upwards and is attached to the waist of the person;

3. when people with different heights sit on the chair, the positions of the headrest part and the waist support part can be adjusted only by adjusting the position of the headrest part on the chair back, so that the efficiency of adjusting the positions of the headrest part and the waist support part is effectively improved.

Drawings

Fig. 1 is a schematic view of the overall structure of a lumbar support adjustable seat according to embodiment 1 of the present application.

Fig. 2 is a schematic structural view of a lumbar support portion of the lumbar adjustable seat according to embodiment 1 of the present application.

Fig. 3 is a partial structural view of the lumbar adjustable seat of embodiment 1 of the present application, illustrating the connection relationship between the plug board and the support board.

Fig. 4 is a schematic view of a part of the adjustable lumbar support of embodiment 1 of the present application, so as to illustrate the connection relationship between the fixing plate and the adjusting plate.

Fig. 5 is a schematic structural view of a lumbar support portion of the lumbar adjustable seat according to embodiment 2 of the present application.

Fig. 6 is a schematic view of the entire structure of the lumbar adjustable seat of embodiment 3 of the present application.

Description of reference numerals: 1. a chair back; 11. a yielding groove; 12. a headrest portion; 13. an adjusting plate; 131. an adjustment groove; 132. clamping the elastic sheet; 14. a support plate; 141. a support groove; 142. adjusting the elastic sheet; 15. a fixing plate; 151. a clamping groove; 16. a position limiting sleeve; 2. a lumbar support assembly; 21. mounting a plate; 211. a plugboard; 2111. a card slot; 212. mounting a block; 213. a butting block; 214. a first rotation plate; 22. a lumbar support portion; 221. a leaning curved surface; 222. a connecting seat; 2221. connecting grooves; 2222. a connecting screw; 2223. a first connection block; 2224. a second connecting block; 2225. a limiting groove; 223. a second rotating plate; 23. a rotating part; 3. a chair seat; 4. lifting the air rod; 5. a chair leg.

Detailed Description

The present application is described in further detail below with reference to the attached drawing figures.

The embodiment of the application discloses a seat with an adjustable waist rest.

Example 1

Referring to fig. 1 and 2, the chair with adjustable lumbar support includes a chair back 1, a chair seat 3, a lifting air rod 4 and chair legs 5. One end of the lifting air rod 4 is hinged with the chair seat 3, the other end is connected with the chair legs 5 through screws, and the chair legs 5 are provided with rollers. The chair back 1 is connected with the chair seat 3 through screws so as to facilitate people to lean. The seat with the adjustable lumbar support further comprises a lumbar support component 2, the lumbar support component 2 comprises a lumbar support portion 22 and a mounting plate 21, the mounting plate 21 is arranged on the seat back 1 in a sliding mode, the sliding direction is the length direction of the seat back 1, and the lumbar support portion 22 is arranged on the mounting plate 21 in a hinged mode so that the waist of a human body can lean against the seat. In the embodiment of the present application, the lumbar support portion 22 is a plate-like structure, and one side of the lumbar support portion 22 away from the chair back 1 is provided with a curved leaning surface 221 for leaning on by the human body, and the curved leaning surface 221 is attached to the waist of the human body.

Referring to fig. 1 and 3, in the embodiment of the present application, a chair back 1 having a relief groove 11 in the middle is used. The chair back 1 is connected with a supporting plate 14 through a screw, the supporting plate 14 is positioned in the abdicating groove 11, and the supporting plate 14 is provided with a supporting groove 141. The end of the mounting plate 21 is integrally connected with a plug board 211, and the plug board 211 is uniformly provided with slots 2111 along the length direction. In the embodiment of the present application, an accommodating groove (not shown in the figure) communicating with the supporting groove 141 is further formed on the inner side wall of the supporting groove 141, an adjusting elastic sheet 142 is disposed in the accommodating groove through a screw, and the adjusting elastic sheet 142 has a protrusion, and the protrusion is located in the clamping groove 2111. When people hold the inserting plate 211 to slide in the supporting groove 141, the protrusions on the adjusting elastic sheet 142 are sequentially positioned in the clamping grooves 2111, so that the gear of the mounting plate 21 on the chair back 1 can be adjusted.

Referring to fig. 2, a mounting block 212 is integrally formed and protruded on a side of the mounting plate 21 facing the lumbar support portion 22, a coupling seat 222 is integrally formed in a middle portion of the side of the lumbar support portion 22 facing the mounting plate 21, the coupling seat 222 has a first coupling block 2223 and a second coupling block 2224, a coupling groove 2221 is formed between the first coupling block 2223 and the second coupling block 2224, and the mounting block 212 is located in the coupling groove 2221. The first connecting block 2223 and the second connecting block 2224 are both provided with threaded holes, and are also both connected with connecting screws 2222 in a threaded manner. The lumbar support assembly 2 further includes a rotating portion 23, and in the embodiment of the present application, the rotating portion 23 is a torsion spring. The mounting block 212 has a connection hole therein, and the torsion spring is located in the connection hole. When the mounting block 212 is located in the connection groove 2221, one end of the connection screw 2222 passes through the first connection block 2223 and the mounting block 212 in order to be threadedly connected to the second connection block 2224. At this time, the torsion spring is sleeved on the connection screw 2222, one end of the torsion spring abuts against the connection base 222, and the other end abuts against the mounting plate 21. In the embodiment of the present application, the mounting plate 21 has the abutting block 213 thereon, and the abutting blocks 213 are located at both sides of the mounting block 212. And a limit groove 2225 is formed at one side of the first connecting block 2223 and the second connecting block 2224, which are close to each other, so that the abutting block 213 is located in the limit groove 2225 and slides.

Referring to fig. 1 and 4, the chair with adjustable lumbar support further comprises a headrest portion 12, a fixing plate 15 is connected to the headrest portion 12, and the fixing plate 15 is slidably connected to the top of the chair back 1. In the embodiment, the headrest portion 12 is movably linked with the fixing plate 15, and the headrest portion 12 can rotate relative to the fixing plate 15 to adjust the position of the headrest portion 12 for the user to rest his head. There is regulating plate 13 at the back at the 1 top of the back of the chair through screw connection, and set up on the regulating plate 13 and run through the adjustment tank 131 at regulating plate 13 both ends, set up the mounting groove (not shown in the figure) that communicates with adjustment tank 131 on the inner wall of adjustment tank 131, and be provided with joint shell fragment 132 in the mounting groove, the one end of joint shell fragment 132 passes through the screw setting on the inner wall of mounting groove, the mounting groove provides joint shell fragment 132 elastic deformation's space, in this application embodiment, it is protruding to have on the joint shell fragment 132 equally. The fixing plate 15 is sequentially provided with a plurality of clamping grooves 151 uniformly arranged at intervals along the length direction, and the protrusions of the clamping elastic pieces 132 are positioned in the clamping grooves 151, so that the height of the headrest portion 12 on the chair back 1 can be conveniently adjusted.

The implementation principle of the embodiment 1 is as follows: when no person sits on the seat or the person leans back, the lumbar support part 22 can keep a parallel state relative to the chair back 1 because the torsion spring is supported in the middle of the lumbar support part 22; when people sit on the chair to lean back, the force of the waist of the human body acting on the upper end of the waist support part 22 enables the waist support part 22 to rotate by taking the mounting block 212 as an axis, and the waist support part 22 tilts the lower end of the waist support part 22 under the elastic action of the torsion spring so as to enable the whole waist support part 22 to be attached to the waist of the human body, thereby supporting the waist of the human body and reducing the damage to the lumbar when people sit for a long time.

Example 2

Referring to fig. 5, the present embodiment is different from embodiment 1 in that the rotating portion 23 used in the present embodiment is a compression spring. The mounting panel 21 all has seted up bonding groove (not shown in the figure) with waist portion 22 middle part, and the one end and the mounting panel 21 of pressure spring bond, and the other end bonds with waist portion 22, and the both ends of pressure spring all are located bonding inslot, and bonding groove is used for spacing the both ends of pressure spring to reduce the condition that the pressure spring drops from mounting panel 21 and waist portion 22.

The side of the mounting plate 21 facing the lumbar support 22 is provided with two first rotating plates 214 which are parallel to each other, the side of the lumbar support 22 facing the mounting plate 21 is provided with two second rotating plates 223 which are parallel to each other, and the end parts of the first rotating plates 214 and the second rotating plates 223 are connected in a pairwise rotating manner, so that the mounting plate 21 and the lumbar support 22 are connected in a rotating manner.

The implementation principle of the embodiment 2 is as follows: when no person sits on the seat or the person does not lean backwards, the lumbar part 22 can keep a parallel state relative to the chair back 1 because the pressure spring is supported in the middle of the lumbar part 22; when people sit on the chair to lean back, the force of the waist of the human body acting on the upper end of the waist support part 22 enables the waist support part 22 to rotate by taking the first rotating plate 214 and the second rotating plate 223 as axes, and the waist support part 22 tilts the lower end of the waist support part 22 in a self-adaptive manner under the elastic action of the pressure spring, so that the whole waist support part 22 is attached to the waist of the human body, the waist of the human body is supported, and the damage to the lumbar of the person who sits for a long time is reduced.

Example 3

Referring to fig. 6, the present embodiment is modified from embodiments 1 and 2 to add the function of synchronously adjusting the height of the headrest portion 12 and the lumbar portion 22. One end of the fixing plate 15 adopted in the embodiment of the present application is movably linked with the headrest portion 12, and the other end passes through the adjusting plate 13 and is connected with the mounting plate 21 through a screw. The back of the chair back 1 is arranged on the limiting sleeve 16 through a screw, and the limiting sleeve 16 is sleeved on the fixing plate 15, so that the fixing plate 15 is limited and fixed conveniently. Because the headrest portion 12 and the lumbar support portion 22 are connected through the fixing plate 15, when people of different heights sit on the chair, the positions of the headrest portion 12 and the lumbar support portion 22 can be adjusted only by adjusting the position of the headrest portion 12 on the chair back 1, and the use experience of a user is effectively improved.

The implementation principle of the embodiment 3 is as follows: when no person sits on the chair or the person does not lean backwards, the lumbar support part 22 is hinged on the chair back 1 through the rotating part 23 and keeps a relative parallel state with the chair back 1; when a person sits on the seat and leans backwards, the force of the waist of the human body acting on the upper end of the waist supporting part 22 enables the waist supporting part 22 to rotate by taking the mounting plate 21 as an axis, and the waist supporting part 22 tilts the lower end of the waist supporting part 22 in a self-adaptive manner under the action of the rotating part 23, so that the whole waist supporting part 22 is attached to the waist of the human body, the waist of the human body is supported, and the injury to the lumbar of the person who sits for a long time is reduced; because the headrest portion 12 and the lumbar portion 22 are connected by the fixing plate 15, the headrest portion 12 and the lumbar portion 22 can be adjusted in height synchronously; when people with different heights sit on the chair, the positions of the headrest part 12 and the lumbar part 22 can be adjusted only by adjusting the position of the headrest part 12 on the chair back 1, so that the use experience of a user is effectively improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A seat with an adjustable lumbar support is characterized in that: including back of the chair (1), be provided with waist on back of the chair (1) and lean on subassembly (2), the waist is leaned on subassembly (2) including waist portion of leaning on (22) and slide and set up mounting panel (21) on back of the chair (1), the waist is leaned on portion (22) and is rotated with mounting panel (21) through rotating portion (23) and be connected, the waist leans on one side that back of the chair (1) was kept away from in portion (22) to have the leaning on curved surface (221) that supplies the user to lean on, leaning on curved surface (221) and the laminating of human waist.

2. The lumbar adjustable seat of claim 1, wherein: the rotating part (23) is a torsion spring, a connecting seat (222) is arranged on one side, facing the chair back (1), of the lumbar support part (22), and the connecting seat (222) is located in the middle of the lumbar support part (22); the connecting base (222) is provided with a connecting groove (2221), the mounting plate (21) is convexly provided with a mounting block (212) with a connecting hole, the mounting block (212) is positioned in the connecting groove (2221), the connecting base (222) is provided with a connecting screw (2222), and the connecting screw (2222) is used for rotatably connecting the mounting block (212) and the connecting base (222); the torsion spring is arranged in the connecting hole, one end of the torsion spring is abutted to the connecting seat (222), and the other end of the torsion spring is abutted to the mounting plate (21).

3. The lumbar adjustable seat of claim 2, wherein: connecting seat (222) have first connecting block (2223) and second connecting block (2224) that are located spread groove (2221) both sides, spacing groove (2225) have been seted up on first connecting block (2223) and second connecting block (2224), have butt piece (213) that are located installation piece (212) both sides on mounting panel (21), butt piece (213) slide and set up in spacing groove (2225).

4. The lumbar adjustable seat of claim 1, wherein: rotation portion (23) are the pressure spring, the one end and the mounting panel (21) of pressure spring are connected, the other end with waist leans on portion (22) to be connected towards one side of back of the chair (1), the pressure spring is connected in the middle part that the waist leaned on portion (22).

5. The lumbar adjustable seat of claim 4, wherein: mounting panel (21) are provided with first rotation board (214) towards one side of waist portion of leaning on (22), waist portion of leaning on (22) is provided with second rotation board (223) towards one side of back of the chair (1), just first rotation board (214) rotates with second rotation board (223) and is connected.

6. The lumbar adjustable seat of claim 5, wherein: the number of the first rotating plates (214) and the number of the second rotating plates (223) are two, and the two first rotating plates (214) and the two second rotating plates (223) are connected in a pairwise rotating mode.

7. The lumbar adjustable seat of claim 1, wherein: the tip of back of the chair (1) still is provided with head rest portion (12), be provided with regulating plate (13) on back of the chair (1), adjustment tank (131) have been seted up on regulating plate (13), be connected with fixed plate (15) on head rest portion (12), the one end and head rest portion (12) of fixed plate (15) are connected, and the other end passes adjustment tank (131) and is connected with mounting panel (21), just fixed plate (15) and regulating plate (13) swing joint.

8. The lumbar adjustable seat of claim 7, wherein: the headrest part (12) is movably connected with the fixing plate (15).