CN215382645U

CN215382645U - Seat backrest with good supporting effect

Info

Publication number: CN215382645U
Application number: CN202121658406.0U
Authority: CN
Inventors: 韦振勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-21
Filing date: 2021-07-21
Publication date: 2022-01-04
Anticipated expiration: 2031-07-21

Abstract

The utility model provides a seat backrest with a good supporting effect, which comprises a supporting plate, wherein a sliding groove is formed in the middle of the supporting plate, a backrest plate assembly is limited in the sliding groove in a front-back sliding manner, locking mechanisms are fixed at two ends of the rear part of the supporting plate, the locking mechanisms act on the backrest plate assembly to lock the backrest plate assembly, the rear end of the backrest plate assembly is connected with two ends of the supporting plate through elastic pieces, and the seat backrest also comprises a controller, wherein the controller is externally connected with a power supply and is electrically connected with the locking mechanisms; when the backrest plate assembly is actually used, the backrest plate assembly can normally slide no matter which end of the backrest plate assembly is stressed, the structure is simpler, and the problem that the deformation of the sliding part is damaged due to uneven stress to influence normal use is effectively solved.

Description

Seat backrest with good supporting effect

Technical Field

The utility model relates to the field of seats, in particular to a seat backrest with a good supporting effect.

Background

The human spine naturally has four bends of cervical curvature, thoracic curvature, lumbar curvature and basal curvature so as to relieve the physical stress of the spine in the movement of the human body. When a person is in a normal sitting posture, the waist and the back are not straight and linear, and the person can just take a straight line under the condition of external force compression or strong force. Most of the existing chairs have linear flat backs, so that only a small part of the waist of a user is in contact with the backs of the chairs when the user sits down, even a plurality of users do not contact with the back chairs when sitting down, the neck and the head of the user are not supported by the chairs, the user can feel tired in the waist, the shoulders, the neck and the head of the user after sitting down for a long time, and even shoulder vertebra and cervical vertebra diseases are caused. After people sit down, if people lean backwards, people find that the backrest chair of the chair is not attached to the curves of the waist, the shoulders and the head of people, the upper body of the people stretches unnaturally, and body fatigue is increased. The situation that the body of a user is tired due to the fact that the back rest chair of the chair is not attached to the back curve of the user, and diseases of the shoulder vertebra and the cervical vertebra are caused is very obvious when office workers and long-distance travel workers need to keep sitting postures for a long time.

In order to solve the problem, the prior art with patent No. 2020230151764 discloses a seat back with good supporting effect, when a user leans back, back boards at different positions can move backwards for different distances according to different stresses, and a locking mechanism is controlled by a controller to lock, so that the purpose that the curved surface of the back completely fits the line of the back of the user is achieved; however, in practical application, because the back of a user is different in the backward leaning force at different positions, the sliding distances at two sides of the back board are different, the deformation of the sliding part is easy to be damaged after long-term use, the normal use is affected, and when the stress part falls on a rail to be moved back and forth during locking, the rail is deformed, so that the resistance to the back and forth movement is large, and even the back and forth movement cannot be realized.

Therefore, a seat back with good supporting effect is needed to solve the problem that the deformation of the sliding part is damaged due to uneven stress when the existing seat back is used, which affects normal use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a seat backrest with a good supporting effect, and aims to solve the problem that the deformation and damage of a sliding part are often caused by uneven stress when the existing seat backrest is used, so that the normal use is influenced.

In order to achieve the purpose, the utility model provides the following scheme:

the utility model provides a seat backrest with a good supporting effect, which comprises a supporting plate, wherein a sliding groove is formed in the middle of the supporting plate, a backrest plate assembly is limited in the sliding groove in a front-back sliding mode, locking mechanisms are fixed at two ends of the rear portion of the supporting plate, the locking mechanisms act on the backrest plate assembly to lock the backrest plate assembly, the rear end of the backrest plate assembly is connected with two ends of the supporting plate through elastic pieces, and the seat backrest also comprises a controller, wherein the controller is externally connected with a power supply and is electrically connected with the locking mechanisms.

Preferably, the back board assembly comprises a back board, a supporting column is fixedly connected to the rear end of the middle of the back board, and the supporting column is limited in the sliding groove in a front-back sliding manner.

Preferably, the backrest plate is of a circular arc structure.

Preferably, the outer part of the backrest plate is wrapped with a soft package.

Preferably, the locking mechanism comprises an electromagnet push-pull rod, the electromagnet push-pull rod is fixed to the rear portion of the supporting plate and electrically connected with the controller, an electromagnetic head of the electromagnet push-pull rod is connected with a brake pad, a pressure spring is further arranged on the supporting plate and acts on the brake pad, and the brake pad is matched and locked with the supporting column.

Preferably, the brake pad is an anti-skid rubber brake pad.

Preferably, the elastic member is a bungee cord.

Compared with the prior art, the utility model has the following beneficial technical effects:

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

FIG. 1 is a rear view of a seat back with good support provided by the present invention;

FIG. 2 is a schematic view of a portion of a back plate assembly of a seat back with a good supporting effect according to the present invention;

in the figure: 1: support plate, 2: back plate assembly, 21: back board, 22: support column, 3: locking mechanism, 31: electromagnet push-pull rod, 32: brake pad, 33: pressure spring, 4: an elastic member.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model aims to provide a seat backrest with a good supporting effect, and aims to solve the problem that the normal use is affected due to the fact that the deformation and damage of a sliding part are caused by uneven stress when the existing seat backrest is used.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

Example 1:

the embodiment provides a back of seat that supporting effect is good, as shown in fig. 1 and 2, including backup pad 1, the spout has been seted up at the middle part of backup pad 1, can be spacing to have back board subassembly 2 around sliding in the spout, the rear portion both ends of backup pad 1 all are fixed with locking mechanism 3, locking mechanism 3 acts on back board subassembly 2 and locks back board subassembly 2, the rear end of back board subassembly 2 is passed through the elastic component 4 with the both ends of backup pad 1 and is connected, still include the controller, controller external power supply, and with 3 electric connection of locking mechanism.

Specifically, the back board assembly 2 includes a back board 21, a supporting column 22 is fixedly connected to a rear end of a middle portion of the back board 21, and the supporting column 22 is slidably limited in the sliding groove.

Further, the backrest plate 21 has a circular arc structure, so that the wrapping property is improved.

Furthermore, the back board 21 is wrapped with a soft package to improve comfort.

Further, the locking mechanism 3 comprises an electromagnet push-pull rod 31, the electromagnet push-pull rod 31 is fixed to the rear portion of the support plate 1 and electrically connected with the controller, an electromagnetic head of the electromagnet push-pull rod 31 is connected with a brake pad 32, a pressure spring 33 is further arranged on the support plate 1, the pressure spring 33 acts on the brake pad 32, and the brake pad 32 is matched and locked with the support column 22.

Furthermore, the brake block 32 is made of anti-slip rubber, so that a good friction coefficient is ensured.

Further, the elastic member 4 is an elastic cord.

The utility model provides a seat backrest with a good supporting effect, which has the working principle that: firstly, the controller controls the electromagnet push-pull rod 31 to start, the electromagnet push-pull rod 31 pulls the electromagnetic head to release the compression locking of the pressure spring 33 to the brake pad 32, at the moment, when a user leans backwards, the back board 21 drives the support column 22 to move backwards in the chute under the action of the pressure, the back boards 21 at different positions can move backwards for different distances according to different stresses, then the controller controls the electromagnet push-pull rod 31 to separate the electromagnetic head, at the moment, the brake pad 32 is compressed and locked under the action of the elasticity of the pressure spring 33, and the support column 22 is locked, so that the outline of the seat backrest can be consistent with the outline of the back of the user, the support effect and the comfort are greatly improved, and when the seat is actually used, the back board assembly can be ensured to normally slide no matter which end is stressed at the left end and the right end is stressed, the structure is simpler, and the problem that the deformation damage of the sliding part is caused by the uneven stress to influence on the normal use is effectively avoided, after use, the controller controls the electromagnet push-pull rod 31 to unlock, and the backrest plate component 2 is reset under the action of the elastic piece 4.

The principle and the implementation mode of the utility model are explained by applying specific examples, and the description of the above examples is only used for helping understanding the method and the core idea of the utility model; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In summary, this summary should not be construed to limit the present invention.

Claims

1. The utility model provides a support effectual seat back which characterized in that: the novel backrest is characterized by comprising a supporting plate, a sliding groove is formed in the middle of the supporting plate, a backrest plate assembly is limited in the sliding groove in a front-back sliding mode, locking mechanisms are fixed at two ends of the rear portion of the supporting plate and act on the backrest plate assembly to lock the backrest plate assembly, the rear end of the backrest plate assembly is connected with two ends of the supporting plate through elastic pieces, and the novel backrest further comprises a controller, and the controller is externally connected with a power supply and is electrically connected with the locking mechanisms.

2. The seat back with good supporting effect as claimed in claim 1, wherein: the back board assembly comprises a back board, a supporting column is fixedly connected to the rear end of the middle of the back board, and the supporting column is limited in the sliding groove in a front-back sliding mode.

3. The seat back with good supporting effect as claimed in claim 2, wherein: the backrest plate is of an arc-shaped structure.

4. The well-supported seat back of claim 3, wherein: the outer part of the backrest plate is wrapped with a flexible package.

5. The seat back with good supporting effect as claimed in claim 2, wherein: the locking mechanism comprises an electromagnet push-pull rod, the electromagnet push-pull rod is fixed to the rear portion of the supporting plate and electrically connected with the controller, an electromagnetic head of the electromagnet push-pull rod is connected with a brake pad, a pressure spring is further arranged on the supporting plate and acts on the brake pad, and the brake pad is matched with the supporting column to be locked.

6. The well-supported seat back of claim 5, wherein: the brake block is made of anti-skid rubber.

7. The seat back with good supporting effect as claimed in claim 1, wherein: the elastic piece adopts an elastic rope.