CN109730480B - Chair of intelligent adjustment position of sitting - Google Patents
Chair of intelligent adjustment position of sitting Download PDFInfo
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- CN109730480B CN109730480B CN201910010347.7A CN201910010347A CN109730480B CN 109730480 B CN109730480 B CN 109730480B CN 201910010347 A CN201910010347 A CN 201910010347A CN 109730480 B CN109730480 B CN 109730480B
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Abstract
The invention relates to an office chair and discloses a chair capable of intelligently adjusting sitting postures, which comprises a chair plate, chair legs, armrests and a backrest, wherein a plurality of elastic fluid bags are arranged on the backrest, the chair plate and the armrests; the controller receives a pressure signal of the pressure sensor and sends a control signal to the one-way pump; the part of the fluid bag far away from the chair legs is a thick-walled part, and the part of the fluid bag close to the chair legs is a thin-walled part; after the controller homogenizes the pressure in the adjacent fluid bags in real time, the pressure of the fluid bags is gradually reduced along the direction far away from the chair legs; when a user lies on the writing chair in a slanting way, the pressure in the fluid bags below the thigh part is greater than the pressure in the fluid bags at the leg part, and at the moment, the controller adjusts the pressure in the adjacent fluid bags to gradually reduce the pressure in the fluid bags along the direction far away from the chair legs, so that the sitting posture of the user is corrected, and the user is more comfortable.
Description
Technical Field
The invention relates to an office chair, in particular to a chair capable of intelligently adjusting sitting postures.
Background
With the competition of the market and the development of the society, the household industry is continuously advanced, wherein office chairs also have a plurality of continuous styles, such as office chairs with backrests, office chairs with bendable backrests and the like. However, in view of the situation that people work in front of computers for a long time, people are not only pursuing beauty, but also increasingly demanding comfort.
The conventional office chair comprises a chair plate, chair legs, armrests and a backrest, wherein the chair legs are fixed at the lower end of the chair plate, the armrests are fixed at the side edges of the chair plate, and the backrest is fixed at the upper end of the chair plate.
However, when a user sits on the chair board to work, the body of the user tilts downward along the surface of the backrest in the vertical direction under the action of the dry weight of the upper body, the bending range of the lumbar vertebrae is increased, the body of the user is in a reclining posture, and after the user keeps the reclining posture for a long time, the tiredness and damage degree of the body of the user are greatly increased.
Disclosure of Invention
Aiming at the technical problem in the prior art, the invention provides the chair capable of intelligently adjusting the sitting posture, which has the advantages of automatically adjusting the sitting posture of a user and enabling the user to be more comfortable.
In order to achieve the purpose, the invention provides the following technical scheme:
a chair capable of intelligently adjusting sitting postures comprises a chair plate, chair legs, armrests and a backrest, wherein a plurality of soft and elastic fluid bags are arranged on the backrest, the chair plate and the armrests, pressure sensors are connected between the portions, in contact with the chair, of the fluid bags in a pressing mode, the adjacent fluid bags are communicated through a one-way pump, and the pressure sensors and the one-way pump are connected with a controller in a signal mode;
the controller is used for receiving a pressure signal sent by the pressure sensor and sending a control signal to the one-way pump to control the control state of the one-way pump, wherein the one-way pump has three states of pressurization, cut-off and conduction;
the part of the fluid bag far away from the chair legs is a thick-walled part, the part of the fluid bag close to the chair legs is a thin-walled part, and the wall thickness of the thick-walled part is larger than that of the thin-walled part;
after the controller homogenizes the pressure in the adjacent fluid bags in real time, the pressure of the fluid bags is gradually reduced along the direction far away from the chair legs.
Through the technical scheme, under people's dead weight, user's shank fluid bag internal pressure is greater than thigh fluid bag internal pressure when normal position of sitting, back on user's oblique lying writes the chair, thigh lower fluid bag internal pressure is greater than shank fluid bag internal pressure, let the pressure in the controller adjustment adjacent fluid bag make the pressure in the fluid bag reduce along the direction of keeping away from the chair leg gradually this moment, pressure in the fluid bag is big its volume big more, realize correcting user's position of sitting, let the user more comfortable.
Furthermore, the fluid bags are connected through two one-way pumps which are not directly communicated with each other, and the pressurizing directions of the two one-way pumps are opposite.
Through the technical scheme, the two unidirectional pumps which are reversely connected in parallel can realize bidirectional pressurization of the fluid bag, and the adjustment mode is more flexible and the adjustment time is shorter than that of unidirectional pressurization.
Further, when the pressure in the middle fluid bag is higher than that of the adjacent fluid bag, the controller controls the one-way pump communicated with the fluid bag with the high internal pressure to pressurize the fluid bag beside the fluid bag with the high internal pressure and close to the chair leg;
reducing the pressure in the middle fluid bag to minimize the pressure in the middle fluid bag;
then the pressure in the middle fluid bag and the pressure in the fluid bags far away from the chair legs are sequentially increased, and the pressure in the fluid bags is gradually reduced along the direction far away from the chair legs.
Through the technical scheme, the plurality of fluid bags are adjusted under the pressure regulation of the two one-way pumps connected in parallel, so that the action of lifting the inclined lying trunk upwards is realized, and the posture of a user is corrected.
Further, in the further reducing of the pressure in the middle of the fluid bag:
the middle fluid bag is pressurized towards the interior of the fluid bag far away from the chair legs.
Through the technical scheme, the volume of the middle fluid bag is the minimum, the volumes of the fluid bags on the two sides are the maximum, the posture of the user at that time is fixed, and preparation is made for subsequently changing the posture of the user.
Further, the pressure in the fluid bag in the middle and the pressure in the fluid bag far away from the chair legs are sequentially increased:
the liquid bag which is positioned beside the liquid bag far away from the chair legs and has unchanged pressure is pressurized into the liquid bag far away from the chair legs.
Through above-mentioned technical scheme, let adjacent fluid bag to needing the interior pressure boost of pressurized fluid bag, by the bulky grow of pressurized fluid bag, adjacent fluid bag volume reduces to let the more upward movement of user's body posture, correct the posture of lying to one side.
Furthermore, a plurality of the fluid bags are uniformly distributed in a matrix.
Through the technical scheme, the postures of the parts of the people, which are contacted with the chair, at each position can be adjusted by the plurality of fluid bags which are uniformly distributed on the matrix, so that the postures of the people are more standard.
Further, the wall thickness of the fluid bladder becomes thinner in the horizontal direction away from the center of the backrest.
Through the technical scheme, under the same internal pressure, the thinner the wall thickness of the fluid bags, the larger the volume of the fluid bags, and the plurality of fluid bags form a recess in the center of the backrest, so that the posture of a user cannot be inclined in the horizontal direction.
Further, the one-way pump is connected to the thick-walled portion.
Through above-mentioned technical scheme, the wall of thick wall portion is thicker, can strengthen the structure of junction mild, and the volume change of thinner wall portion is little when pressure variation simultaneously, reduces the amplitude that the fluid bag drove the unidirectional pump and shifts.
Compared with the prior art, the invention has the beneficial effects that: under the dead weight of people, the leg fluid bag internal pressure is greater than the thigh fluid bag internal pressure when the user normally sits in a sitting position, after the user reclines and writes on the chair, the thigh fluid bag internal pressure is greater than the leg fluid bag internal pressure, at the moment, the controller adjusts the pressure in the adjacent fluid bags to enable the pressure in the fluid bags to be gradually reduced along the direction away from the chair legs, the plurality of fluid bags are adjusted under the pressure regulation of the two parallel one-way pumps, the action of lifting the trunk of the reclining position upwards is realized, the posture of the user is corrected, the larger the pressure in the fluid bags is, the larger the volume of the fluid bags is, the plurality of fluid bags on the chair are sunken in the middle and are raised in a pyramid shape, the sitting posture of the user is corrected, and the user is more comfortable.
Drawings
FIG. 1 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 is a control schematic of an embodiment of the present invention;
fig. 3 is a schematic vertical cross-sectional view of a fluid bladder in accordance with an embodiment of the present invention.
Reference numerals: 1. a chair plate; 2. a chair leg; 3. a handrail; 4. a backrest; 5. a fluid bladder; 6. a pressure sensor; 7. a one-way pump; 8. a controller; 9. a thick-walled portion; 10. a thin-walled portion.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
Examples
A chair capable of intelligently adjusting sitting postures is shown in figure 1 and comprises a chair plate 1, chair legs 2, armrests 3 and a backrest 4, wherein a plurality of fluid bags 5 which are uniformly distributed in a matrix form are arranged on the backrest 4, the chair plate 1 and the armrests 3, the fluid bags 5 can be made of soft and elastic materials, and the materials can be soft rubber. The wall thickness of the liquid bag 5 becomes thinner gradually along the direction far away from the center of the backrest 4 in the horizontal direction, and when a person backs on the liquid bag 5, the part of the liquid bag 5 far away from the center of the backrest 4 is easier to deform and bulge, thereby being beneficial to the trunk of the person to be kept at the center of the backrest 4. The thinner the wall thickness of the fluid bladder 5 is, the larger the volume thereof is, and the plurality of fluid bladders 5 form a recess in the center of the backrest 4, which is advantageous in that the posture of the user is not deviated in the horizontal direction. The plurality of fluid bags 5 distributed uniformly in the matrix can adjust the posture of each part of the person contacting with the chair, so that the posture of the person is more standard.
As shown in fig. 2 and 3, a pressure sensor 6 is pressed between the portions of the fluid bag 5 contacting the chair, and the pressure sensor 6 is adhered to the fluid bag 5 and senses the pressure applied to the surface of the chair by the fluid bag 5, generates a pressure signal, and transmits the pressure signal to the outside. The adjacent fluid bags 5 are communicated through a one-way pump 7, and the one-way pump 7 can adopt an electromagnetic control one-way pump 7 for receiving control signals from the outside and controlling the on-off state of the adjacent fluid bags 5 according to the control signals. The pressure sensor 6 and the one-way pump 7 are in signal connection with a controller 8, the controller 8 can adopt a single chip microcomputer and a peripheral circuit thereof or a PLC and a peripheral circuit thereof commonly used in the prior art, and is used for receiving a pressure signal sent by the pressure sensor 6 and sending a control signal to the one-way pump 7 to control the control state of the one-way pump 7, wherein the one-way pump 7 has three states of pressurization, cut-off and conduction. The fluid bags 5 are connected through two one-way pumps 7 which are not directly communicated with each other, and the pressurizing directions of the two one-way pumps 7 are opposite.
As shown in fig. 3, the portion of the fluid bladder 5 away from the leg 2 is a thick portion 9, the portion of the fluid bladder 5 close to the leg 2 is a thin portion 10, the thickness of the thick portion 9 is greater than the thickness of the thin portion 10, the thin portion 10 is more likely to swell than the thick portion under the same pressure, the swollen volume is larger, and the volume of the thin portion 10 is larger and changes more rapidly when the internal pressure of the fluid bladder 5 increases. The one-way pump 7 is connected to the thick-walled part 9, the wall of the thick-walled part 9 is thick, the structure of the joint can be strengthened slightly, meanwhile, the volume change of the thin-walled part 10 is small when the pressure changes, and the amplitude of the displacement of the one-way pump 7 driven by the fluid bag 5 is reduced.
After the controller 8 equalizes the pressure in the adjacent fluid bags 5 in real time, the pressure of the fluid bags 5 is gradually reduced in the direction away from the chair legs 2. When the pressure in the middle fluid bag 5 is higher than that of the adjacent fluid bags 5, the controller 8 controls the one-way pump 7 communicated with the fluid bag 5 with high internal pressure to pressurize the fluid bags 5 beside the fluid bags 5 with high internal pressure and close to the chair legs 2. The pressure in the intermediate fluid cell 5 is reduced to minimize the pressure in the intermediate fluid cell 5. Wherein the middle fluid bag 5 is pressurized towards the fluid bag 5 far away from the chair leg 2. Then the pressure in the middle fluid bag 5 and the fluid bags 5 far away from the chair legs 2 is increased in sequence. Wherein, the fluid bags 5 which are positioned beside the fluid bags 5 far away from the chair legs 2 and have unchanged pressure are pressurized into the fluid bags 5 far away from the chair legs 2, and the pressure in the formed fluid bags 5 is gradually reduced along the direction far away from the chair legs 2.
When the chair of intelligent adjustment position of sitting used: under the dead weight of a person, when a user sits normally, the pressure in the leg fluid bag 5 is greater than the pressure in the thigh fluid bag 5, after the user lies on the chair obliquely, the pressure in the thigh fluid bag 5 is greater than the pressure in the leg fluid bag 5, at the moment, the controller 8 adjusts the pressure in the adjacent fluid bags 5 to enable the pressure in the fluid bags 5 to be gradually reduced along the direction far away from the chair legs 2, and the larger the pressure in the fluid bags 5 is, the larger the volume of the fluid bags is. The adjacent fluid bags 5 are pressurized into the fluid bags 5 which need to be pressurized, the volume of the pressurized fluid bags 5 is increased, and the volume of the adjacent fluid bags 5 is reduced, so that the body posture of the user can move upwards more, and the inclined lying posture can be corrected. The middle fluid bag 5 has the smallest volume, and the fluid bags 5 on the two sides have the largest volume, so that the posture of the user at the time is fixed, and the device is ready for changing the posture of the user subsequently. When the volume of the fluid bags 5 is controlled, the fluid bags 5 are adjusted under the pressure regulation of the two one-way pumps 7 connected in parallel, so that the action of lifting the obliquely lying trunk upwards is realized, and the posture of a user is corrected. The two unidirectional pumps 7 which are connected in parallel in the reverse direction can realize bidirectional pressurization of the fluid bag 5, and the adjustment mode is more flexible and the adjustment time is shorter than that of unidirectional pressurization. The sitting posture of the user can be corrected, and the user is more comfortable.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (6)
1. A chair capable of intelligently adjusting sitting postures comprises a chair plate (1), chair legs (2), armrests (3) and a backrest (4), wherein a plurality of soft and elastic fluid bags (5) are arranged on the backrest (4), the chair plate (1) and the armrests (3), and the chair is characterized in that a pressure sensor (6) is connected between the positions, in contact with the chair, of the fluid bags (5) in a pressing mode, the adjacent fluid bags (5) are communicated through a one-way pump (7), and the pressure sensor (6) and the one-way pump (7) are in signal connection with a controller (8);
the controller (8) is used for receiving a pressure signal sent by the pressure sensor (6) and sending a control signal to the one-way pump (7) to control the control state of the one-way pump (7), wherein the one-way pump (7) has three states of pressurization, cut-off and conduction;
the part of the fluid bag (5) far away from the chair legs (2) is a thick-wall part (9), the part of the fluid bag (5) close to the chair legs (2) is a thin-wall part (10), and the wall thickness of the thick-wall part (9) is larger than that of the thin-wall part (10);
after the controller (8) homogenizes the pressure in a plurality of adjacent fluid bags (5) in real time, the pressure of the plurality of fluid bags (5) is gradually reduced along the direction far away from the chair legs (2);
the fluid bags (5) are connected through two one-way pumps (7) which are not directly communicated with each other, and the pressurizing directions of the two one-way pumps (7) are opposite;
when the pressure in the middle fluid bag (5) is higher than the pressure in the adjacent fluid bags (5), the controller (8) controls the one-way pump (7) communicated with the fluid bag (5) with the large internal pressure to pressurize the fluid bags (5) beside the fluid bags (5) with the large internal pressure and close to the chair legs (2);
reducing the pressure in the middle fluid bag (5) to minimize the pressure in the middle fluid bag (5);
then the pressure in the middle fluid bag (5) and the pressure in the fluid bags (5) far away from the chair legs (2) are sequentially increased, and the pressure in the fluid bags (5) is gradually reduced along the direction far away from the chair legs (2).
2. A chair with intelligent sitting posture adjustment according to claim 1, characterized in that the further reduction in pressure in the middle fluid bag (5) is:
the middle fluid bag (5) is pressurized towards the interior of the fluid bag (5) far away from the chair legs (2).
3. A chair with intelligent sitting posture adjustment according to claim 2, characterized in that the pressure in the fluid bag (5) away from the chair leg (2) and the fluid bag (5) in the middle is then sequentially increased:
the liquid bag (5) which is positioned beside the liquid bag (5) far away from the chair leg (2) and has unchanged pressure is pressurized into the liquid bag (5) far away from the chair leg (2).
4. The chair for intelligent sitting position adjustment according to claim 1, wherein the fluid bags (5) are uniformly distributed in a matrix.
5. A chair capable of intelligently adjusting sitting posture according to claim 4, wherein the wall thickness of the fluid bag (5) is gradually thinner along the horizontal direction far from the center of the backrest (4).
6. The chair for intelligent sitting position adjustment according to claim 1, wherein the one-way pump (7) is connected to the thick-walled portion (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910010347.7A CN109730480B (en) | 2019-01-05 | 2019-01-05 | Chair of intelligent adjustment position of sitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910010347.7A CN109730480B (en) | 2019-01-05 | 2019-01-05 | Chair of intelligent adjustment position of sitting |
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| Publication Number | Publication Date |
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| CN109730480A CN109730480A (en) | 2019-05-10 |
| CN109730480B true CN109730480B (en) | 2021-10-01 |
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| CN201910010347.7A Active CN109730480B (en) | 2019-01-05 | 2019-01-05 | Chair of intelligent adjustment position of sitting |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114176342A (en) * | 2021-12-24 | 2022-03-15 | 南京理工大学 | Multifunctional office chair |
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| CN107259871A (en) * | 2017-08-23 | 2017-10-20 | 海门市月彩纺织科技有限公司 | A kind of adjustable lumbar air cushion |
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| CN2140177Y (en) * | 1992-08-11 | 1993-08-18 | 王建国 | Inflatable health-care headrest |
| CN2137111Y (en) * | 1992-10-13 | 1993-06-30 | 伊兹赖尔·什皮尔特 | Mattress with supporting parts |
| CN2222091Y (en) * | 1994-02-10 | 1996-03-13 | 周涷鈤 | Collision-damping air bag |
| CN2301921Y (en) * | 1997-03-23 | 1998-12-30 | 王锐光 | Hydraulic health chair cushion |
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