CN214711605U

CN214711605U - Waist supporting plate

Info

Publication number: CN214711605U
Application number: CN202120661189.4U
Authority: CN
Inventors: 周勤奎; 邓新元; 李亚军; 王正江; 陆智; 李德山; 石强; 李绪国
Original assignee: Borgerui Chongqing Technology Co ltd
Current assignee: Borgerui Chongqing Technology Co ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2021-11-16
Anticipated expiration: 2031-03-31

Abstract

The utility model discloses a waist supporting plate, including long banding waist supporting plate body, wherein one side of this waist supporting plate body is the leading flank, and the same side in both ends of waist supporting plate body is provided with a spout respectively, and two spout parallel arrangement extend along the width direction of waist supporting plate body, two the spout inner wall is fixed respectively and is provided with the locating piece. The utility model has the advantages that: the spout at waist layer board both ends cooperatees with the gear strip on the seat back backplate, constitutes slide adjusting mechanism, and locating piece and gear strip cooperation make the waist layer board fix a position at each gear point, can realize hiding between waist layer board and the backplate and be connected to easily adjust the position of waist layer board.

Description

Waist supporting plate

Technical Field

The utility model belongs to the technical field of the seat structure, concretely relates to waist tray.

Background

Seat backs are often covered with foam and a cover to improve comfort. In order to meet the requirements of partial users, the seat backrest is also provided with a waist support, so that the waist of a sitting person is supported, the support performance is further improved, and the fatigue is relieved. But in order to improve the universality of the chair and meet the use requirements of users with different heights and shapes, the waist support needs to have a lifting adjusting function. The prior art discloses some waist supports that rely on an electrically driven lifting mechanism for adjustment, however, the structure is relatively complex. Chinese patent document with publication number CN209660969U discloses a seat, including chassis and backrest frame, wherein be equipped with soft backrest in the frame, be connected with the support of L type between chassis and the backrest frame, the support of this L type has vertical portion and horizontal portion, wherein horizontal portion connects in the chassis, set up the arc supporter that two horizontal directions extend in vertical portion, arc supporter both ends respectively with the frame attach, set up the sliding tray in the vertical portion, the waist holds in the palm the setting in the backrest rear side, the rear side that the waist held in the palm passes through regulating part and is connected with the sliding tray, in order to realize the upper and lower regulation of waist support. However, the lifting adjustment of the lumbar support is inconvenient, and the seat is not highly aesthetic.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a waist support plate as solving back waist and holding in the palm a part of installation location structure.

The technical scheme is as follows:

a waist supporting plate comprises a strip-shaped waist supporting plate body, wherein one surface of the waist supporting plate body is a front side surface, and the waist supporting plate is characterized in that two ends of the waist supporting plate body are respectively provided with a sliding chute, the two sliding chutes are positioned on the same side surface of the waist supporting plate body, and the two sliding chutes are arranged in parallel and extend along the width direction of the waist supporting plate body;

and the inner walls of the two sliding grooves are respectively and fixedly provided with a positioning block.

Compared with the prior art, the beneficial effects of the utility model are that: the spout at waist layer board both ends cooperatees with the gear strip on the seat back backplate, constitutes slide adjusting mechanism, and locating piece and gear strip cooperation make the waist layer board fix a position at each gear point, can realize hiding between waist layer board and the backplate and be connected to easily adjust the position of waist layer board.

Drawings

FIG. 1 is a schematic structural diagram according to a first embodiment;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a cross-sectional view taken along line C-C of FIG. 2;

FIG. 4 is a schematic structural diagram of the second embodiment;

FIG. 5 is an enlarged view of a portion a of FIG. 4;

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 4;

FIG. 7 is an enlarged view of portion b of FIG. 6;

FIG. 8 is a cross-sectional view taken along line B-B of FIG. 4;

FIG. 9 is an enlarged view of the portion c of FIG. 8;

fig. 10 is a left side view of fig. 4.

Detailed Description

The present invention will be further described with reference to the following examples and accompanying drawings.

Example one

As shown in fig. 1 and 2, a waist supporting plate comprises a strip-shaped waist supporting plate body, one surface of the waist supporting plate body is a front side surface, two sliding grooves are respectively arranged at two ends of the waist supporting plate body, the two sliding grooves are located on the same side surface of the waist supporting plate body, the two sliding grooves are arranged in parallel and extend along the width direction of the waist supporting plate body, and positioning blocks 302 are respectively fixedly arranged on inner walls of the two sliding grooves.

Specifically, the groove wall of the sliding groove is parallel to the end of the waist supporting plate body, the groove wall of one side of the sliding groove, which is close to the waist supporting plate body, is fixedly connected with the waist supporting plate body, and the two groove openings of the sliding groove are opposite. The middle part of the inner side surface of the groove wall of the sliding groove, which is far away from the waist supporting plate body, protrudes towards the inside of the sliding groove to form the positioning block 302, and the positioning block 302 and the two ends of the inner side surface of the groove wall at which the positioning block 302 is located are in smooth transition. The two positioning blocks 302 are symmetrical about the central plane of the waist support plate body.

As shown in fig. 1, the front side surfaces of the two ends of the waist support plate body are fixedly connected with L-shaped bending plates 301, each bending plate 301 comprises a vertical part vertically arranged on the front side surface of the end part of the waist support plate body, the rear side edge of the vertical part is fixedly connected with the end part of the waist support plate body, the front side edge of the vertical part is connected with a parallel part, the parallel part is parallel to the front side surface of the end part of the waist support plate body, the outer side edge of the parallel part is connected with the front side edge of the vertical part, and the inner side edge of the parallel part extends towards the middle part of the waist support plate body. Thus, the sliding groove is defined between the bending plate 301 and the end of the waist support plate body. Reinforcing ribs 303 are arranged between the outer side surface of the vertical part and the end part of the waist supporting plate body so as to improve the strength of the waist supporting plate body.

As shown in figure 2, the end width of the waist splint body is smaller than the width of the middle part of the waist splint body, and the waist splint body is formed by connecting three parts for ensuring the strength of the waist splint body. Specifically, the waist support plate body comprises a strip-shaped support plate 310, strip-shaped positioning plates 320 are respectively connected to two ends of the support plate 310, the inner ends of the positioning plates 320 are connected with the support plate 310, and the outer ends of the positioning plates 320 extend outwards and towards the front side of the waist support plate body. The width of the positioning plate 320 is smaller than that of the waist support plate body. The positioning plate 320 is integrally formed with the bending plate 301.

As shown in fig. 3, the connection between the supporting plate 310 and the positioning plate 320 is as follows: the front sides of the two ends of the supporting plate 310 are respectively shifted backwards to form a first connecting portion 311, the back sides of the inner ends of the positioning plate 320 are respectively thinned corresponding to the first connecting portion 311 to form a second connecting portion 321, the second connecting portion 321 abuts against the first connecting portion 311, and the front side of the second connecting portion 321 is flush with the front side of the supporting plate 310. The rear side of the second connecting portion 321 is connected to a rivet 322, and the rivet 322 penetrates into the corresponding first connecting portion 311 to rivet the first connecting portion 311 and the second connecting portion 321.

The outer end of the positioning plate 320 is further provided with an adjusting handle 330.

The first embodiment is applied to the seat back frame structure according to the second embodiment.

Example two

As shown in fig. 4, 6 and 10, a seat back frame includes a back plate assembly, wherein two sides of the back plate assembly are respectively provided with a movable guiding cavity 400, the movable guiding cavities 400 at two sides are horizontally opposite, and the movable guiding cavities 400 extend along the sides of the back plate assembly. The front space of the back plate assembly between the two movement guide chambers 400 forms a lumbar support adjustment area 220, and each of the movement guide chambers 400 has an inner opening facing the lumbar support adjustment area 220.

The waist support adjusting area 220 is internally provided with a waist support plate 300 as in the first embodiment, the waist support plate 300 extends horizontally, two ends of the waist support plate 300 respectively extend into the moving guide cavity 400 from the corresponding inner openings, the outer side of the moving guide cavity 400 is also provided with an outer opening, and the adjusting handle 330 extends out from the outer opening for a user to hold. The end of the waist support plate 300 in the adjusting guide cavity 400 is adapted to the shape of the adjusting guide cavity 400, and the two side surfaces of the end of the waist support plate 300 are respectively close to the front and rear inner walls of the adjusting guide cavity 400, so as to allow the waist support plate 300 to be adjusted in a lifting manner along the moving guide cavity 400.

To facilitate the mounting connection between the backboard assembly and the lumbar support plate 300, the backboard assembly includes a front backboard 200 and a back backboard 100 that are oppositely disposed front to back and snap-connected. As shown in FIG. 6, the horizontal section of the back plate 100 is a backward convex arc, and the shape of the front back plate 200 is adapted to the shape of the back plate 100, so as to fit the shape of the back of the human body and be ergonomic. A window is formed in the middle of the front backplate 200 to form a frame shape, and the frame strips of the front backplate 200 are attached to the front side of the rear backplate 100. The window area forms a lumbar support adjustment area 220 for receiving a lumbar support. The supporting plate 310 of the lumbar support plate 300 is approximately straight and has a crescent gap with the back plate 100, and the supporting plate 310 protrudes forward relative to the back plate 100 to support the waist of the seated person.

As shown in fig. 10, the middle sections of the two side frame strips of the front-back panel 200 are offset forward to be separated from the corresponding side edges of the rear-back panel 100, so as to form two moving guide cavities 400 with two open sides, respectively, and the protruding portions of the two side frame strips of the front-back panel 200 form the front walls of the moving guide cavities 400.

As shown in fig. 5 to 9, a set of gear blocks 210 arranged at intervals are integrally formed on the rear side of the frame strip of the front back plate 200 corresponding to the movable guiding cavity 400, and the gear blocks 210 are vertically distributed along the movable guiding cavity 400. The gear block 210 is toothed, and the top of the gear block 210 extends backwards and outwards to a position between the corresponding parallel part and the end part of the waist support plate body. The length of the sliding groove is greater than the distance between any two adjacent gear blocks 210, the sliding groove slides along the gear blocks 210, and the groove walls on the two sides of the sliding groove respectively abut against the two corresponding side surfaces of the gear blocks 210. The positioning block 302 is in elastic interference fit with the gear block 210, the positioning block 302 moves the waist support plate 300 when sliding relative to the gear block 210, and the positioning block 302 positions the waist support plate 300 when being clamped between any two adjacent gear blocks 210. Thus, the sliding groove, the gear block 210 and the positioning block 302 constitute a self-positioning mechanism for adjusting the elevation of the waist support plate. Thereby enabling the waist support plate 300 to be positioned within the lift adjustment stroke to meet the needs of users of different body shapes.

In this embodiment, since the two sliding groove notches on the two sides are opposite in direction and are matched with the gear blocks 210 on the two sides, the waist support plate 300 is limited in the left-right direction.

During assembly, the sliding grooves at the two ends of the lumbar support plate 300 are clamped on the corresponding gear blocks 210, and are assembled with the front back plate 200 into a whole, and then the front back plate 200 and the back plate 100 are clamped and assembled. After the assembly is completed, a cover is mounted on the back plate assembly, and an adjusting seam is left at the position, corresponding to the outer opening of the moving guide cavity 400, of the cover, so that the waist support plate 300 leaks out. When the user needs to adjust the height of the waist support, the height of the waist support plate 300 can be conveniently adjusted by holding the adjusting handle 330.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.

Claims

1. The utility model provides a waist supporting plate, includes long banding waist supporting plate body, and one of them one side of this waist supporting plate body is leading flank, its characterized in that: two sliding grooves are respectively arranged at two ends of the waist supporting plate body, the two sliding grooves are positioned on the same side surface of the waist supporting plate body, and the two sliding grooves are arranged in parallel and extend along the width direction of the waist supporting plate body;

and the inner walls of the two sliding chutes are respectively and fixedly provided with a positioning block (302).

2. The lumbar support plate of claim 1, wherein: the groove wall of the sliding groove is parallel to the end part of the waist supporting plate body, one side groove wall of the sliding groove, which is close to the waist supporting plate body, is fixedly connected with the waist supporting plate body, and the two groove openings of the sliding groove face to the middle part of the waist supporting plate body.

3. The lumbar support plate of claim 2, wherein: the positioning blocks (302) are arranged on the inner side face of the groove wall of the sliding groove far away from the waist supporting plate body, and the two positioning blocks (302) are symmetrical about the central plane of the waist supporting plate body.

4. The waist support plate according to claim 3, wherein: the middle part of the inner side face of the groove wall of the chute, which is far away from the waist supporting plate body, protrudes inwards to form the positioning block (302), and the positioning block (302) is in smooth transition with two ends of the inner side face of the groove wall where the positioning block (302) is located.

5. The waist support plate according to claim 3, wherein: the front side surfaces of two ends of the waist supporting plate body are respectively fixedly connected with an L-shaped bending plate (301), the bending plate (301) comprises a vertical part vertically arranged on the front side surface of the end part of the waist supporting plate body, the vertical part is vertically arranged, the rear side edge of the vertical part is fixedly connected with the end part of the waist supporting plate body, the front side edge of the vertical part is connected with a parallel part, the parallel part is parallel to the front side surface of the end part of the waist supporting plate body, the outer side edge of the parallel part is connected with the front side edge of the vertical part, and the inner side edge of the parallel part extends towards the middle part of the waist supporting plate body;

the bending plate (301) and the end part of the waist supporting plate body enclose the sliding groove.

6. The waist support plate according to claim 5, wherein: and a reinforcing rib (303) is arranged between the outer side surface of the vertical part and the end part of the waist supporting plate body.

7. The waist support plate according to claim 5, wherein: the waist supporting plate body comprises a strip-shaped supporting plate (310), strip-shaped positioning plates (320) are respectively connected to two ends of the supporting plate (310), the inner ends of the positioning plates (320) are connected with the supporting plate (310), and the outer ends of the positioning plates (320) extend outwards and towards the front side of the waist supporting plate body;

the positioning plate (320) is integrally formed with the bending plate (301).

8. The waist support plate according to claim 7, wherein: the front side surfaces of two ends of the supporting plate (310) are respectively and backwards shifted to form first connecting parts (311), the rear side surfaces of the inner ends of the positioning plates (320) are respectively thinned corresponding to the first connecting parts (311) to form second connecting parts (321), the second connecting parts (321) are attached to the first connecting parts (311), and the front side surfaces of the second connecting parts (321) are flush with the front side surfaces of the supporting plate (310);

the rear side surface of the second connecting part (321) is connected with a riveting column (322), the riveting column (322) penetrates into the corresponding first connecting part (311), and the first connecting part (311) and the second connecting part (321) are riveted.

9. The lumbar support plate of claim 1, wherein: the two ends of the waist supporting plate body are respectively provided with an adjusting handle (330).