CN212754934U

CN212754934U - Waist rest structure of seat

Info

Publication number: CN212754934U
Application number: CN202021441993.3U
Authority: CN
Inventors: 吕法京
Original assignee: Qingdao Hengnuo Precision Machinery Co ltd
Current assignee: Qingdao Hengnuo Precision Machinery Co ltd
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2021-03-23
Anticipated expiration: 2030-07-20

Abstract

The utility model relates to a waist of seat leans on structure relates to the seat field. Technical characteristics include the seat back board, set up the landing leg and the setting of seat back board lower surface are in seat back board on the seat back board, still including set up in the rear portion assembly shell of seat back board rear side, set up seat back board with adjustable waist on the rear portion assembly shell is by the mechanism and is used for the parcel adjustable waist is by the mechanism and is located the parcel layer of seat back board front side. The waist rest of the device adapts to the shape of the waist of a user through local deformation, and the comfort level is improved.

Description

Waist rest structure of seat

Technical Field

The utility model relates to the technical field of seats, in particular to waist of seat leans on structure.

Background

The chair is a seat with a backrest and armrests. In the past, people have sought to improve the aesthetic appearance of seats and to improve the comfort of seats. In any seat used in that field, the quality and quality of the seat itself can be guaranteed by ensuring the comfort of the seat.

Particularly, the waist support is a key part in the chair, so the chair has the function of supporting the waist of a human body and ensuring the comfort of the waist. Many chairs do not have the waist support at present, can't guarantee the support and the comfort level of waist, even some chairs use as the waist support through setting up some special archs at the waist support position, also all the effect is unsatisfactory, does not have good comfort level, in order to improve this, it is very necessary to design the waist of a chair and leans on the structure.

SUMMERY OF THE UTILITY MODEL

The utility model discloses solve the technical problem among the prior art, provide a waist of seat and lean on structure.

In order to solve the technical problem, the technical scheme of the utility model is specifically as follows:

the utility model provides a structure is leaned on to waist of seat, is in including seat, setting the landing leg and the setting of seat lower surface are in seat back board on the seat, still including set up in the rear portion assembly shell of seat back board rear side, set up seat back board with adjustable waist on the rear portion assembly shell is leaned on the mechanism and is used for the parcel adjustable waist is leaned on the mechanism and is located the parcel layer of seat back board front side.

Preferably, the adjustable lumbar support mechanism at least comprises a plurality of groups of lumbar support units;

the multiple groups of lumbar support units are parallel to each other and are evenly distributed along the vertical direction.

Preferably, each of the lumbar support units includes:

a back support plate positioned between the seat back plate and the wrapping layer;

the movable supporting mechanism is arranged on the back supporting plate and used for supporting the back supporting plate;

and the movement driving mechanism is arranged on the back supporting plate and the rear assembling shell and is used for driving the movement supporting mechanism to move.

Preferably, the movement support mechanism includes:

a mounting plate between the seat back plate and the rear mounting shell;

the two support holes are arranged on the seat back plate in a horizontal arrangement mode, and are positioned between the assembling plate and the back support plate;

and the sliding support rods are arranged in parallel, slide in the support holes in a one-to-one correspondence manner, and the two ends of each sliding support rod are fixedly connected with the assembly plate and the back support plate respectively.

Preferably, the movement driving mechanism includes:

the embedding hole is formed in the center of the assembling plate;

the nut pair is embedded in the embedding hole;

the ball screw is coaxially arranged in the nut pair in a penetrating manner and is in threaded fit with the nut pair, and two end parts of the ball screw are respectively arranged on the seat back plate and the rear assembly shell in a penetrating manner and are rotatably supported by bearings;

and a manual rotation handle fixed to one end of the ball screw passing through the rear assembly housing.

The utility model discloses following beneficial effect has:

the utility model discloses a structure is leaned on to waist of seat adjusts the support degree to the waist through the multiunit lumbar support element of adjustable waist in the mechanism, makes the lumbar support element suitably comfortable to the support of waist, makes the waist lean on to become deformable waist and lean on, can also accord with the user of more shapes. In conclusion, the waist rest of the device adapts to the shape of the waist of a user through local deformation, and the comfort level is improved.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic structural view of a lumbar support structure of a seat of the present invention;

fig. 2 is a side view of the adjustable lumbar support mechanism of the lumbar support structure of the seat of the present invention;

fig. 3 is a side view of a lumbar support structure of a seat according to the present invention.

The reference numerals in the figures denote:

1. a seat plate; 2. a support leg; 3. a seat back plate; 4. a rear assembly housing; 5. a wrapping layer; 6. a back support plate; 7. assembling a plate; 8. a support hole; 9. a sliding support bar; 10. an insertion hole; 11. a nut pair; 12. a ball screw; 13. the handle is rotated manually.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, a lumbar support structure of a seat includes a seat back plate 1, support legs 2 disposed on a lower surface of the seat back plate 1, a seat back plate 3 disposed on the seat back plate 1, a rear assembly housing 4 disposed at a rear side of the seat back plate 3, an adjustable lumbar support mechanism disposed on the seat back plate 3 and the rear assembly housing 4, and a wrapping layer 5 disposed at a front side of the seat back plate 3 and used for wrapping the adjustable lumbar support mechanism.

The adjustable lumbar support mechanism at least comprises a plurality of groups of lumbar support units;

the multiple groups of lumbar support units are parallel to each other and are uniformly arranged along the vertical direction.

Each set of lumbar support units comprises:

the back support plate 6 is positioned between the seat back plate 3 and the wrapping layer 5;

the movable supporting mechanism is arranged on the back supporting plate 6 and used for supporting the back supporting plate 6;

and a movement driving mechanism provided on the back support plate 6 and the rear assembling housing 4 to drive the movement of the movement supporting mechanism.

The movable support mechanism includes:

a fitting plate 7, the fitting plate 7 being located between the seat back plate 3 and the rear fitting shell 4;

the two support holes 8 are arranged on the seat back plate 3 in a horizontal arrangement mode, and the two support holes 8 are identical in structure and located between the assembling plate 7 and the back support plate 6;

and the sliding support rods 9 are arranged in parallel, the two sliding support rods 9 slide in the support holes 8 in a one-to-one correspondence manner, and two ends of each sliding support rod 9 are fixedly connected with the assembling plate 7 and the back support plate 6 respectively.

The movement drive mechanism includes:

an insertion hole 10, wherein the insertion hole 10 is arranged at the central position of the assembly plate 7;

the nut pair 11 is embedded in the embedding hole 10;

the ball screw 12 is coaxially arranged in the nut pair 11 in a penetrating way and is in threaded fit with the nut pair 11, and two end parts of the ball screw 12 are respectively arranged on the seat back plate 3 and the rear assembly shell 4 in a penetrating way and are rotatably supported by bearings;

and a manual rotation handle 13, the manual rotation handle 13 being fixed to one end of the ball screw 12 penetrating the rear assembling housing 4.

The working principle is as follows:

first, in the present apparatus, the seat plate 1, the leg support 2, and the seat back plate constitute a conventional seat structure. The support degree of the waist is adjusted through the multiple groups of waist support units in the adjustable waist support mechanism, so that the waist support units support the waist properly and comfortably, the waist support becomes a deformable waist support, and the lumbar support can also accord with users with more shapes. Specifically, in the adjusting process, a manual rotation handle 13 in the moving driving mechanism is screwed to drive a ball screw 12 to rotate, the ball screw 12 is installed between the assembly shells 4 at the rear part of the seat backboard 3 through a bearing and can rotate freely, the ball screw 12 is further in threaded fit with a nut pair 11 embedded in the embedding hole 10, the assembly board 7 is limited in the moving supporting mechanism, the assembly board 7 cannot rotate, the nut pair 11 cannot rotate, and therefore the nut pair 11 is driven to move linearly along the extension direction of the ball screw 12 when the ball screw 12 rotates, and the assembly board 7 is driven to move together. Wherein, the rear assembly housing 4 plays the roles of installing and supporting the ball screw 12 and also plays the role of shielding the ball screw 12 and the assembly plate 7. The sliding support rod 9 sliding in the support hole 8 in the movable support mechanism is connected between the back support plate 6 and the assembly plate 7, so that when the assembly plate 7 moves, the back support plate 6 is driven to move under the supporting and connecting action of the sliding support rod 9. The adjustable waist is leaned on the mechanism and is included multiunit lumbar support unit at least, and mutual parallelism and evenly arrange along vertical direction between the multiunit lumbar support unit, consequently adjust the position of the back backup pad 6 among every lumbar support unit among the multiunit lumbar support unit, just can realize according with human waist shape, then adjusted the support shape to the waist, the comfort level that reinforcing waist leaned on. Wherein parcel layer 5 parcel has played the guard action to back backup pad 6 on back backup pad 6, also prevents that the gap between two adjacent back backup pads 6 from exposing and pressing from both sides the user outward, has strengthened the travelling comfort when will not leaning on simultaneously. In conclusion, the waist rest of the device adapts to the adaptive waist shape through local deformation, and the comfort level is improved.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. The utility model provides a structure is leaned on to waist of seat, is in including seat board (1), setting landing leg (2) and the setting of seat board (1) lower surface are in seat back board (3) on the seat board (1), its characterized in that, still including set up in rear portion assembly shell (4), the setting of seat back board (3) rear side are in seat back board (3) with adjustable waist on rear portion assembly shell (4) is leaned on the mechanism and is used for the parcel adjustable waist is leaned on the mechanism and is located parcel layer (5) of seat back board (3) front side.

2. A lumbar support structure of a seat according to claim 1, characterized in that said adjustable lumbar support mechanism comprises at least a plurality of sets of lumbar support units;

3. A lumbar support structure of a seat according to claim 2, characterized in that each set of lumbar support units comprises:

a back support plate (6), the back support plate (6) being located between the seat back plate (3) and the wrapping layer (5);

a mobile support mechanism arranged on the back support plate (6) to support the back support plate (6);

and the movement driving mechanism is arranged on the back supporting plate (6) and the rear assembling shell (4) and is used for driving the movement of the movement supporting mechanism.

4. A lumbar support structure of a seat according to claim 3, characterized in that said movement support mechanism comprises:

a mounting plate (7), the mounting plate (7) being located between the seat back plate (3) and the rear mounting shell (4);

the two support holes (8) are arranged on the seat back plate (3) in a horizontally-arranged mode, are identical in structure, and the two support holes (8) are located between the assembling plate (7) and the back support plate (6);

and the sliding support rods (9) are arranged in parallel, the sliding support rods (9) slide in the support holes (8) in a one-to-one correspondence mode, and two ends of each sliding support rod (9) are fixedly connected with the assembly plate (7) and the back support plate (6) respectively.

5. The lumbar support structure of a seat as set forth in claim 4, wherein said movement drive mechanism includes:

the insertion hole (10) is formed in the center of the assembly plate (7), and the insertion hole (10) is formed in the center of the assembly plate (7);

the nut pair (11), the said nut pair (11) inlays and fits in the said embedding hole (10);

the ball screw (12) is coaxially arranged in the nut pair (11) in a penetrating manner and is in threaded fit with the nut pair (11), and two end parts of the ball screw (12) are respectively arranged on the seat back plate (3) and the rear assembly shell (4) in a penetrating manner and are rotatably supported by bearings;

and a manual rotation handle (13), wherein the manual rotation handle (13) is fixed at one end of the ball screw (12) penetrating through the rear assembly shell (4).