CN216166406U - Seat backrest with good supporting effect - Google Patents
Seat backrest with good supporting effect Download PDFInfo
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- CN216166406U CN216166406U CN202122668762.7U CN202122668762U CN216166406U CN 216166406 U CN216166406 U CN 216166406U CN 202122668762 U CN202122668762 U CN 202122668762U CN 216166406 U CN216166406 U CN 216166406U
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- air bag
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Abstract
The utility model provides a seat backrest with a good supporting effect, which comprises a supporting plate, wherein the middle part of the supporting plate is provided with a sliding groove, a backrest plate component is limited in the sliding groove in a front-back sliding manner, and the rear part of the supporting plate is provided with a locking mechanism; the locking mechanism comprises an air groove, the air groove is fixed at the rear part of the supporting plate and is arranged on two sides of the backrest plate component, an air bag is arranged in the air groove and is connected with a brake pad, the lower part of the air bag is externally connected with an air source through a pipeline, and an exhaust valve is arranged at the upper part of the air bag; when the air bag is inflated, the air bag drives the brake pad to extrude the backrest plate assembly to lock the backrest plate assembly, high installation precision and locking force are not needed, and the using effect of the seat backrest is improved.
Description
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 controller controls a locking mechanism to lock, so as to achieve the purpose that the curved surface of the back completely fits the lines on the back of the user; however, in practical application, because the force of leaning back at different positions of the back of a user is different, the sliding distances of the two sides of the back board are different, the deformation of the sliding part is easy to damage after long-term use, the normal use is affected, in order to enable all the support columns to be braked under the stress, the vertical deviation needs to be reduced by high manufacturing and installation precision, and meanwhile, the whole back board can be braked by large lateral pressure.
Therefore, a seat back with a good supporting effect is needed, which can solve the problem that the existing seat back is easy to be stressed unevenly and needs higher installation precision and braking force.
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 existing seat backrest is easy to suffer from uneven stress and needs high installation precision and braking force.
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 the middle part of the supporting plate is provided with a sliding groove, a backrest plate component is limited in the sliding groove in a front-back sliding manner, and the rear part of the supporting plate is provided with a locking mechanism;
the locking mechanism comprises an air groove, the air groove is fixed at the rear part of the supporting plate and arranged on two sides of the backrest plate assembly, an air bag is arranged in the air groove and connected with a brake pad, the lower part of the air bag is connected with an external air source through a pipeline, and an exhaust valve is arranged on the upper part of the air bag.
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 brake pad is a flexible brake pad.
Preferably, the two ends of the brake pad are fixed with limiting pieces, and the limiting pieces are arranged on the two sides of the air groove.
Preferably, an air inlet valve, a one-way valve and a constant pressure valve are sequentially arranged on the pipeline.
Compared with the prior art, the utility model has the following beneficial technical effects:
the seat backrest with the good supporting effect 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, and a locking mechanism is arranged at the rear part of the supporting plate; the locking mechanism comprises an air groove, the air groove is fixed at the rear part of the supporting plate and is arranged on two sides of the backrest plate component, an air bag is arranged in the air groove and is connected with a brake pad, the lower part of the air bag is externally connected with an air source through a pipeline, and an exhaust valve is arranged at the upper part of the air bag; when the air bag is inflated, the air bag drives the brake pad to extrude the backrest plate assembly to lock the backrest plate assembly, high installation precision and locking force are not needed, and the using effect of the seat backrest is improved.
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 front view of a seat back with good support provided by the present invention;
FIG. 2 is a top view of a seat back with good support provided by the present invention;
in the figure: 1: support plate, 2: back plate assembly, 21: back board, 22: support column, 3: locking mechanism, 31: gas tank, 32: air bag, 33: brake pad, 34: pipeline, 35: exhaust valve, 36: spacing piece, 37: intake valve, 38: check valve, 39: a constant pressure valve.
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 existing seat backrest is easy to suffer from uneven stress and needs high installation precision and braking force.
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 seat backrest with a good supporting effect, as shown in fig. 1 and 2, the seat backrest comprises a supporting plate 1, a sliding groove is formed in the middle of the supporting plate 1, a backrest plate assembly 2 is limited in the sliding groove in a forward and backward sliding manner, and a locking mechanism 3 is arranged at the rear part of the supporting plate 1; the locking mechanism 3 comprises an air groove 31, the air groove 31 is fixed at the rear part of the support plate 1 and is arranged at two sides of the backboard component 2, an air bag 32 is arranged in the air groove 31, the air bag 32 is connected with a brake pad 33, the lower part of the air bag 32 is externally connected with an air source through a pipeline 34, and an exhaust valve 35 is arranged at the upper part of the air bag 32.
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 brake pad 33 is a flexible brake pad, which improves frictional resistance to ensure a locking effect.
Furthermore, the brake pads 33 are fixed with limiting pads 36 at both ends, and the limiting pads 36 are disposed at both sides of the air groove 31, which can prevent the air bag 32 from deviating after being inflated.
Further, an intake valve 37, a check valve 38, and a constant pressure valve 39 are provided in this order on the pipe 34.
The utility model provides a seat backrest with a good supporting effect, which has the working principle that: the user leans back, the back board 21 drives the supporting column 22 to move backwards in the sliding groove under the action of pressure, the back boards 21 at different positions can move backwards for different distances according to different stresses, the back board 21 is enabled to be matched with the back curve of a human body, at the moment, the air inlet valve 37, the one-way valve 38 and the constant pressure valve 39 are opened, the exhaust valve 35 is closed, the air source inflates the air bag 32 through the pipeline, along with the expansion of the air bag 32, the air bag 32 drives the brake pad 33 to extrude the supporting column 22, and finally the supporting column 22 is tightly pressed and locked, so that the back board 21 can keep a state matched with the back curve of the human body, when unlocking is needed, only the air inlet valve 37, the one-way valve 38 and the constant pressure valve 39 need to be closed, the exhaust valve 35 is opened, the air in the air bag 32 is exhausted, and then the brake pad 33 releases the extrusion between the supporting column 22, and unlocking is completed.
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 (7)
1. The utility model provides a backrest with good supporting effect which characterized in that: the backrest comprises a supporting plate, wherein a sliding groove is formed in the middle of the supporting plate, a backrest plate component is limited in the sliding groove in a front-back sliding manner, and a locking mechanism is arranged at the rear part of the supporting plate;
the locking mechanism comprises an air groove, the air groove is fixed at the rear part of the supporting plate and arranged on two sides of the backrest plate assembly, an air bag is arranged in the air groove and connected with a brake pad, the lower part of the air bag is connected with an external air source through a pipeline, and an exhaust valve is arranged on the upper part of the air bag.
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 according to claim 2, wherein: the backrest plate is of an arc-shaped structure.
4. The seat back with good supporting effect according to 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 1, wherein: the brake block is a flexible brake block.
6. The seat back with good supporting effect as claimed in claim 1, wherein: and limiting pieces are fixed at two ends of the brake pad and arranged on two sides of the air groove.
7. The seat back with good supporting effect as claimed in claim 1, wherein: and the pipeline is sequentially provided with an air inlet valve, a one-way valve and a constant pressure valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122668762.7U CN216166406U (en) | 2021-11-02 | 2021-11-02 | Seat backrest with good supporting effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122668762.7U CN216166406U (en) | 2021-11-02 | 2021-11-02 | Seat backrest with good supporting effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216166406U true CN216166406U (en) | 2022-04-05 |
Family
ID=80900096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122668762.7U Active CN216166406U (en) | 2021-11-02 | 2021-11-02 | Seat backrest with good supporting effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216166406U (en) |
-
2021
- 2021-11-02 CN CN202122668762.7U patent/CN216166406U/en active Active
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