CN211154695U

CN211154695U - Back support

Info

Publication number: CN211154695U
Application number: CN201921833200.XU
Authority: CN
Inventors: 魏罡; 董晓武; 董志高; 江武华; 洪小强
Original assignee: Zhangzhou Kangcheng Home Appliances Co ltd; Ogawa Intelligent Health Technology Group Co Ltd
Current assignee: Zhangzhou aojiahua Health Technology Co., Ltd; Ogawa Intelligent Health Technology Group Co Ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-08-04
Anticipated expiration: 2029-10-29

Abstract

The utility model provides a backrest, which comprises a back cushion and a supporting frame; the support frame is connected with the back cushion through a torsional spring; two ends of the torsion spring are respectively fixed on the cushion and the support frame; the columnar direction of the torsion spring is arranged along the direction parallel to the back cushion; when the back of the user clings to the back cushion, the back cushion can swing along the left-right direction and the front-back direction with small amplitude. The utility model provides a backrest, through set up the torsional spring between cushion and support frame, the column direction of torsional spring sets up along the direction that is on a parallel with the cushion to when the back of user hugs closely the cushion and leans on down toward the cushion direction, the cushion can be followed about direction and the swing of fore-and-aft direction small margin, on the one hand, brings certain comfort for the user, and on the other hand, the backrest is difficult to damage.

Description

Back support

Technical Field

The utility model relates to a back cushion technical field especially relates to backrest.

Background

At present, the elastic part structure of the related backrest on the market is realized by a straight spring or a C-shaped spring piece, the buffering effect is poor, the force variation is very different, and the backrest can be damaged due to improper sitting posture of a user.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, it is necessary to provide a backrest that can swing at a small angle in different directions.

The utility model provides a backrest, which comprises a back cushion and a supporting frame; the support frame is connected with the back cushion through a torsional spring; two ends of the torsion spring are respectively fixed on the cushion and the support frame; the columnar direction of the torsion spring is arranged along the direction parallel to the back cushion; when the back of the user clings to the back cushion, the back cushion can swing along the left-right direction and the front-back direction with small amplitude.

The utility model provides a backrest, through set up the torsional spring between cushion and support frame, the column direction of torsional spring sets up along the direction that is on a parallel with the cushion to when the back of user hugs closely the cushion and leans on down toward the cushion direction, the cushion can be followed about direction and the swing of fore-and-aft direction small margin, on the one hand, brings certain comfort for the user, and on the other hand, the backrest is difficult to damage.

Drawings

Fig. 1 is a schematic view of a backrest structure provided by the present invention;

FIG. 2 is an exploded view of the backrest of FIG. 1;

FIG. 3 is a schematic view of the connection of the connecting member and the spring of FIG. 1;

fig. 4 is an exploded view of the preferred embodiment of the backrest of fig. 1.

Reference numerals:

10 back cushion 11 installation through hole 20 support frame

30 torsional spring 40 connecting piece 50 heating plate

51 elastic buckle 52 buckle assembly

Detailed Description

The invention is described in detail below with reference to specific embodiments and drawings of the specification:

the utility model provides a backrest, which comprises a back cushion 10 and a support frame 20; the support frame 20 is connected with the back cushion 10 through a torsion spring 30; two ends of the torsion spring 30 are respectively fixed on the back cushion 10 and the support frame; the columnar direction of the torsion spring 30 is arranged in a direction parallel to the back cushion 10; when the back of the user is closely attached to the back pad 10, the back pad 10 can swing in the right-left direction and the front-rear direction with a small amplitude.

In specific implementation, as shown in fig. 1 and 2: the elastic backrest comprises a support frame 20 and a back cushion 10, when the elastic backrest is placed on the backrest of a chair, a driver seat and the like, the support frame 20 is abutted against the backrest, and when a user sits on the chair and the driver seat, the back of the user leans against the back cushion 10 of the elastic backrest; a torsion spring 30 is arranged between the support frame 20 and the back cushion 10, the columnar direction of the torsion spring 30 is arranged along the direction parallel to the back cushion 10, the extending parts of the two ends of the torsion spring 30 are fixed on the back cushion 10 and the support frame 20, when the back of a user leans against the elastic backrest, and the back of the user swings in a small amplitude, due to the characteristics of the torsion spring 30, the back cushion 10 can swing in a small amplitude along the left-right direction and the front-back direction.

The utility model provides an elasticity is backed, through set up torsional spring 30 between cushion 10 and support frame 20, the column direction of torsional spring 30 sets up along the direction that is on a parallel with cushion 10 to when cushion 10 is hugged closely and leans on down toward the cushion direction at user's back, cushion 10 can follow about direction and the swing of the little range of fore-and-aft direction, on the one hand, brings certain comfort for the user, and on the other hand leans on to be difficult to damage.

Preferably, two torsion springs 30 are arranged between the support frame 20 and the back cushion 10; the two torsion springs 30 are connected in series; the two torsion springs 30 can be fixed to the support frame 10 in series.

In specific implementation, as shown in fig. 2 and 3: two torsion springs 30 are connected in series, so that the elasticity between the support frame 20 and the back cushion 10 is better, and better comfort is brought to a user.

Preferably, as shown in fig. 2 and 3: a connecting piece 40 is arranged between the supporting frame 20 and the back cushion 10, a torsion spring 30 is arranged between the supporting frame 20 and the connecting piece 40, and two ends of the torsion spring 30 are respectively fixed on the back cushion 10 and the connecting piece 40; the connecting member 40 is detachably disposed on the supporting frame 20. The connecting piece 40 is arranged between the supporting frame 20 and the back cushion 10, the connecting piece 40 is detachably connected to the supporting frame 20, the supporting frame 20 is connected with the connecting piece 40 through a torsion spring, and therefore the back cushion 10 is detachably arranged on the supporting frame 20, and the supporting frame 20 and the back cushion 10 are conveniently detachably connected.

Preferably, as shown in fig. 1: two back cushions 10 are provided, and the two back cushions 10 are arranged on the support frame 20 in a left-right manner.

In specific implementation, the back cushion 10 is substantially rectangular, and the length direction of the back cushion 10 is arranged along the vertical direction of the back of the user; the two back cushions 10 are arranged on the bracket, and the two back cushions 10 are arranged on the left and right. Preferably, the torsion spring 30 is disposed in a vertical direction.

Preferably, the surface of the back pad 10 is provided with a heating plate 50, and the heating plate 50 can heat the back of the user.

Preferably, the back cushion 10 is provided with a plurality of mounting through holes 11; the surface of the heating plate 50 contacting with the back cushion 10 is provided with an elastic buckle 51 corresponding to the mounting through hole 11; the resilient clips 51 are adapted to the mounting holes 11 to secure the heating plate 50 to the back pad 10.

In specific implementation, a plurality of mounting through holes 11 are arranged on the back cushion 10, and an elastic buckle 51 corresponding to the mounting through holes 11 on the back cushion 10 is arranged on one surface of the heating plate 50, which is in contact with the back cushion 10; the elastic buckle 1 is preferably formed by oppositely arranging two buckle components 52, one end of the buckle component 52 connected with the heating plate 50 is of a semi-cylindrical structure, one end of the buckle component 52 far away from the heating plate is of a semi-conical structure, the bottom of the semi-conical structure is connected with the semi-cylindrical structure, the diameter of the bottom of the semi-conical structure is larger than that of the semi-cylindrical structure, and the two buckle components 52 are spaced at a certain distance; so that the heating plate 50 can be detachably mounted to the back pad 10 by means of the elastic buckles 51.

Preferably, a heating wire (not shown in the drawings) is disposed inside the heating plate 50, the heating plate 50 is heated by the heating wire, and the technical solution of disposing the heating wire in the heating plate 50 belongs to the conventional technical means of the person skilled in the art, and will not be described again.

Claims

1. A backrest comprises a back cushion and a support frame; the method is characterized in that: the support frame is connected with the back cushion through a torsional spring; two ends of the torsion spring are respectively fixed on the cushion and the support frame; the columnar direction of the torsion spring is arranged along the direction parallel to the back cushion; when the back of the user clings to the back cushion, the back cushion can swing along the left-right direction and the front-back direction with small amplitude.

2. The backrest according to claim 1, wherein: two torsion springs are arranged between the support frame and the back cushion; the two torsion springs are connected in series; the serial connection parts of the two torsion springs can be fixed on the support frame.

3. The backrest according to claim 1, wherein: a connecting piece is arranged between the supporting frame and the back cushion, a torsional spring is arranged between the supporting frame and the connecting piece, and two ends of the torsional spring are respectively fixed on the back cushion and the connecting piece; the connecting piece is detachably arranged on the support frame.

4. The backrest according to claim 1, wherein: the two back cushions are arranged on the support frame in a left-right mode.

5. The backrest according to any one of claims 1 to 4, wherein: the torsion spring is arranged in the vertical direction.

6. The backrest according to claim 1, wherein: the surface of the back cushion is provided with a heating plate which can heat the back of a user.

7. The backrest according to claim 6, wherein: the back cushion is provided with a plurality of mounting through holes; the surface of the heating plate, which is contacted with the back cushion, is provided with an elastic buckle corresponding to the mounting through hole; the elastic buckle is matched with the mounting through hole to fix the heating plate on the back cushion.

8. The backrest according to claim 6, wherein: the heating plate is internally provided with a heating wire, and the heating plate is heated by the heating wire.