CN210185120U

CN210185120U - Mattress with adjustable hardness

Info

Publication number: CN210185120U
Application number: CN201920848506.6U
Authority: CN
Inventors: Xiaoguang Zhao; 赵晓光; Shuzheng Cai; 蔡树正
Original assignee: Shenzhen Huaxin Material Association Sensing Technology Co Ltd
Current assignee: Shenzhen Huaxin Material Association Sensing Technology Co Ltd
Priority date: 2019-06-05
Filing date: 2019-06-05
Publication date: 2020-03-27
Anticipated expiration: 2029-06-05

Abstract

The utility model belongs to the technical field of the bed chair cushion, relate to adjustable bed chair cushion of hardness. Contact air bags capable of sensing whether being squashed are arranged on the supporting plate, and a comfortable layer is laid on the contact air bags to form a mattress body. The contact airbags are connected with electromagnetic gas valves in a one-to-one correspondence mode, the gas pumps are used for inflating the contact airbags, the gas pressure detectors are used for detecting the gas pressure of the contact airbags, and the exhaust electromagnetic valves are used for enabling the contact airbags to exhaust. When the human body physiology detection device detects that a human body moves, the controller enables the air pressure device to work, and the air pressure device can inflate the contact air bag which is not flattened, so that the supporting force of the corresponding area to the human body is increased, and meanwhile, the hardness of the supporting part is enhanced. The soft and hard degrees of different positions of the mattress body are adjusted, so that the supporting force of the contact air bags on different areas of the human body is uniformly distributed. The adjustable-hardness mattress has the advantages of simple structure and low cost, and the condition that the existing mattress is high in cost due to the fact that more pressure sensing elements are arranged is avoided.

Description

Mattress with adjustable hardness

Technical Field

The utility model belongs to the technical field of the bed chair cushion, relate to adjustable bed chair cushion of hardness.

Background

Along with the continuous improvement of the requirements on the living quality of people, the requirements on the comfort level of bed and chair products are further improved, and the idea and the market of personal customization are increased. The mattress in the prior art can only realize the support function, and the hardness degree of mattress in different regions is difficult to adjust, and user experience is relatively poor.

The mattress with a plurality of cavities and different pressure control on each cavity is provided in the market to meet the hardness degree in different areas, but most of the air bags in the structure adopt columnar or square and hexagonal combined multi-point array grid area distribution. Therefore, the number of distribution points is large, the number of pressure sensing elements is large, program control is complex, and software and hardware costs are high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hardness adjustable bed chair cushion to solve current mattress hardness degree and be difficult to adjust or current mattress because pressure sensing element is more and the technical problem that the structure is complicated.

The embodiment of the utility model provides a hardness adjustable bed chair cushion, include:

the mattress comprises a mattress body and a mattress pad, wherein the mattress pad comprises a supporting plate, contact air bags which are sequentially arranged on the supporting plate in the direction from the bed head to the bed tail and can sense whether the contact air bags are flattened, and a comfort layer laid on the contact air bags;

the air pressure device comprises an air pump for providing pressure air for the contact air bags, electromagnetic air valves in one-to-one corresponding connection with the contact air bags, air pressure detectors communicated with interfaces of the electromagnetic air valves, and exhaust electromagnetic valves communicated with the air pressure detectors;

the human body physiological detection device is used for detecting whether the human body lying on the comfortable layer moves; and

and the controller is used for enabling the air pressure device to work when the human body physiological detection device detects body movement.

Optionally, the contact airbag includes a strip-shaped airbag body, a first conductive portion mounted on an inner upper surface of the airbag body, and a second conductive portion mounted on an inner lower surface of the airbag body, and the first conductive portion and the second conductive portion are configured to sense that the airbag body is squashed when the first conductive portion abuts against the second conductive portion.

Optionally, the length direction of the contact airbag is perpendicular to the direction from the bed head to the bed tail, and the contact airbag is obliquely stacked when not inflated.

Optionally, the airbag body is provided with an air tap for connecting with an air tube.

Optionally, the first conductive portion is planar, and the second conductive portion includes at least two strip-shaped conductive portions spaced apart from each other.

Optionally, the cross-section of the balloon body is square, trapezoidal or circular.

Optionally, the first conductive part and the second conductive part are respectively led to the controller.

Optionally, the outlet of the air pump, the inlet of the exhaust solenoid valve and the interface of the gas pressure detector are connected through a tee joint.

The utility model provides an above-mentioned one or more technical scheme in adjustable mattress of softness and hardness and the adjustable mattress of softness and hardness adjusting method have one of following technological effect at least: contact air bags capable of sensing whether being flattened are arranged in the direction from the bed head to the bed tail on the supporting plate, and a comfortable layer is laid on the contact air bags to form a mattress body. The contact airbags are connected with electromagnetic gas valves in a one-to-one correspondence mode, the gas pumps are used for inflating the contact airbags, the gas pressure detectors are used for detecting the gas pressure of the contact airbags, and the exhaust electromagnetic valves are used for enabling the contact airbags to exhaust. When the human body physiological detection device detects that the human body moves, the controller can enable the air pressure device to work, and the air pressure device can inflate the non-squashed contact airbag, so that the supporting force of the corresponding area to the human body is increased, and meanwhile, the hardness of the supporting part is enhanced. The soft and hard degrees of different positions of the mattress body are adjusted, so that the supporting force of the contact air bags on different areas of the human body is uniformly distributed. For example, the contact airbag corresponding to the waist of the human body senses the non-squashed state, the contact airbag corresponding to the back and the hip adjacent to the waist senses the squashed state, and at the moment, the air pressure device inflates the contact airbag corresponding to the waist, so that the contact airbag area corresponding to the waist has larger supporting force on the human body, and the hardness is larger. The adjustable-hardness mattress has the advantages of simple structure and low cost, and the condition that the existing mattress is high in cost due to the fact that more pressure sensing elements are arranged is avoided.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced 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 labor.

Fig. 1 is a schematic structural view of a mattress with adjustable hardness provided by an embodiment of the utility model when a human body lies down, and a dotted line is an air pipe;

fig. 2 is a schematic diagram of an arrangement of contact airbags applied to a soft and hard adjustable mattress provided by an embodiment of the present invention, in which the solid lines are the contact airbags which are not inflated and are obliquely stacked, and the two-dot chain lines are the contact airbags which are filled with gas;

FIG. 3 is a schematic structural diagram of a contact airbag applied to the adjustable-firmness mattress of FIG. 1;

fig. 4(a) and 4(b) are respectively schematic structural diagrams of the inner upper surface and the inner lower surface of the contact airbag;

FIGS. 5(a) and 5(b) are schematic views of a contact balloon in a collapsed state and an unflattened state, respectively;

fig. 6 is a sectional view of the supporting force of the supporting surface facing different areas of the human body when the human body lies down, wherein the main joints of the human body are simulated in a mechanical point-winding manner.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings only for the convenience of description and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the embodiments of the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1 to 3, an embodiment of the present invention provides a mattress with adjustable hardness, which can be applied to bed and chair products, and can also be used in the fields of medical spine correction body plasticity, etc. The soft and hard adjustable mattress and chair cushion comprises a mattress body 10, an air pressure device 20, a human physiology detection device 30 and a controller 40. The mattress body 10 comprises a support plate 11, contact air bags 12 which are sequentially arranged on the support plate 11 in the direction from the head to the tail of the bed and can sense whether the contact air bags are squashed or not, and a comfort layer 13 laid on the contact air bags 12. The gas pressure device 20 includes a gas pump 21 for supplying pressure gas to the contact airbags 12, electromagnetic gas valves 22 connected to the contact airbags 12 in one-to-one correspondence, gas pressure detectors 23 communicated with interfaces of the respective electromagnetic gas valves 22, and exhaust electromagnetic valves 24 communicated with the gas pressure detectors 23. The human physiology inspection apparatus 30 is used to inspect whether the human body 1 lying on the comfort layer 13 has a body motion. The controller 40 is used for operating the air pressure device 20 when the human physiology detecting device 30 detects a body motion.

When the human physiology inspection device 30 detects the body movement of the human body 1, the air pressure device 20 can inflate the non-squashed contact airbag 12, so that the supporting force of the corresponding area to the human body 1 is increased, and the hardness of the supporting part is enhanced. The hardness of the mattress body 10 at different positions is adjusted, so that the supporting force of the contact air bags 12 on different areas of the human body 1 is uniformly distributed. For example, the contact airbag 12 corresponding to the waist C of the human body 1 senses the non-squashed state, and the contact airbag 12 corresponding to the hip D adjacent to the back B of the waist C senses the squashed state, and at this time, the air pressure device 20 inflates the contact airbag 12 corresponding to the waist C, so that the contact airbag 12 region corresponding to the waist C has a large supporting force for the human body, and the hardness is increased. The adjustable-hardness mattress has the advantages of simple structure and low cost, and the condition that the existing mattress is high in cost due to the fact that more pressure sensing elements are arranged is avoided.

It should be noted that the human physiology detecting device 30 belongs to the prior art, and the human physiology detecting device 30 can detect the vital signs of the human body 1, and can also be used for detecting the body movement condition of the human body 1 during the sleeping process. For example, the existing Body Area Network (BAN for short, chinese name is human Body center Network). The automatic operation of the pneumatic device 20 is triggered according to each body movement of the human body 1. The pressure of each contact point air bag 12 is changed, so that the balanced and reasonable supporting force can be obtained again along with the change of body motion. Specifically, the human physiology inspection apparatus 30 may be disposed at a position of the comfort layer 13 near the waist portion C to inspect vital signs and body movement of the human body 1.

In another embodiment of the present invention, the air pump 21 comprises at least one micro air pump with constant air pressure. In order not to affect sleep, the human body 1 should be prevented from sensing the change of the adjustment process by a slow and weak change as much as possible. Therefore, the excessive air inflation speed and flow rate are not needed, the air inflation speed and flow rate are controlled to be below 80L/min, the pressure is controlled to be below 55KPA, and the noise value is less than 40 decibels, so that the air inflation device is suitable. Specifically, the contact airbag 12, the exhaust solenoid valve 24, and the gas pressure detector 23 may be connected by a gas pipe 25.

In another embodiment of the present invention, the outlet of the air pump 21, the inlet of the exhaust solenoid valve 24 and the interface of the gas pressure detector 23 are connected by a tee 26. The air pump 21 is connected with a port 26a of a tee joint 26, then a second port 26b is connected with an exhaust electromagnetic valve 24, the exhaust electromagnetic valve 24 is a normally closed electromagnetic valve and is used for being opened when exhaust is needed, a third port 26c of the tee joint 26 is connected with an electronic type gas pressure detector 23, the electronic type gas pressure detector 23 is connected with each electromagnetic valve 22 through the gas pressure detector 23, and the air charging and discharging of each contact airbag 12 are achieved through the combination of the on-off states of the exhaust electromagnetic valve 24 and any one of the electromagnetic valves 22. Meanwhile, the internal air pressure inside each contact airbag 12 is determined by an air pressure detector 23 at the outlet of the air pump 21. The inflation pressurization or the exhaust depressurization of the contact airbag 12 is formulated by controlling the open state of the exhaust solenoid valve 24. Thereby changing the pressure of a certain contact air bag 12 area in the mattress or the contact air bag 12 in the whole bed, and realizing the functions of hardness adjustment and the like.

Referring to fig. 3 and 5, in another embodiment of the present invention, the contact airbag 12 includes a strip-shaped airbag body 121, a first conductive portion 122 mounted on an inner upper surface of the airbag body 121, and a second conductive portion 123 mounted on an inner lower surface of the airbag body 121, where the first conductive portion 122 and the second conductive portion 123 are used for sensing that the airbag body 121 is pressed when the first conductive portion 122 abuts against the second conductive portion 123. This structure is easy to mold and can sense whether the airbag body 121 is crushed. Referring to fig. 1 and 5(b), after the air pump 21 inflates the airbag body 121, the airbag body 121 overcomes the external force, the first conductive portion 122 and the second conductive portion 123 are separated, so that the first conductive portion 122 and the second conductive portion 123 are not conducted, and the controller 40 obtains a signal whether the airbag body has been completely turned to be not squashed. Referring to fig. 5(a), when a sufficiently large external force F acts on the surface of the airbag body 121, the upper and lower inner surfaces of the airbag body 121 contact each other, and the sensing is performed by the first conductive part 122 and the second conductive part 123 contacting each other. When the conductive portion is only in the single contact mode, the gas pressure detector 23 can be used to acquire the internal minimum pressure data at the moment when the airbag body 121 is expanded to be turned to be non-squashed through gas filling in the originally squashed state of the airbag body 121. Specifically, referring to fig. 3, the airbag body 121 is provided with an air nozzle 124 for connecting with the air tube 25, so that the assembly is easy, and the inflation and deflation of the airbag body 121 can be realized.

Referring to fig. 4, in another embodiment of the present invention, the first conductive portion 122 is planar, and the second conductive portion 123 includes at least two spaced strip-shaped conductive portions. This configuration is easy to mold, saves material, and ensures reliable conduction between the first conductive part 122 and the second conductive part 123 when the upper and lower inner surfaces of the airbag body 121 are in contact with each other. It is understood that the specific structure of the first conductive portion 122 and the second conductive portion 123 may also be in other forms.

In another embodiment of the present invention, the first conductive portion 122 and the second conductive portion 123 can be made of conductive ink, conductive silver paste, mirror silver ink, graphene material or single-arm carbon nanotube aqueous slurry, and the conductive performance is good. The inner surface of the airbag body 121 is coated with a large-area or multi-point conductive material as needed, or is formed by attaching a metal conductor to the inner wall of the airbag body 121.

Referring to fig. 2 and 3, in another embodiment of the present invention, the length direction of the contact airbag 12 is perpendicular to the direction from the head to the tail of the bed, and the contact airbag 12 is obliquely stacked when not inflated. The scheme is easy to arrange, the contact air bags 12 are obliquely overlapped and pressed, the center distance L between the adjacent contact air bags 12 is closer after the contact air bags 12 are inflated, the pivots of the human body 1 are applied to the human body 1 within the range of the same length, so that the use is more comfortable, and the problem that the comfort degree is influenced by overlarge air bag distance when the air bags are inflated to be round can be avoided. Specifically, the contact airbags 12 have the same and uniformly distributed internal volume, and can provide supporting force for the human body 1 lying on the comfort layer 13 after the contact airbags 12 are inflated. The contact bladder 12 may be square, trapezoidal, circular or other in cross-section.

Referring to fig. 1 and 3, in another embodiment of the present invention, the first conductive portion 122 and the second conductive portion 123 are respectively connected to the controller 40 through wires 125. This structure is easy to assemble, and allows the airbag main body 121 to have a function of sensing whether or not it is crushed in an airtight state. When the airbag body 121 is inflated, the airbag body 121 overcomes the external force, the first conductive part 122 and the second conductive part 123 start to be gradually separated, and the on-off signal of the controller 40 is sent by the lead wires 125 respectively led out from the first conductive part 122 and the second conductive part 123, so that whether the signals are completely converted into the signals which are not squashed can be obtained.

FIG. 6 is a schematic view of different regions of the human body, namely, the head A, the back B, the waist C, the buttocks D, the knees E and the feet F, with the minimum pressure point between the head A and the back B being at the neck; the point of minimum pressure between the back B and the hips D is at the waist C; the point of minimum pressure between the buttocks D and the foot F is at the foot F and the point of second minimum pressure is at the knee E.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. Adjustable mattress of softness and hardness, its characterized in that includes:

2. The adjustable firmness and mattress of claim 1, wherein the contact airbag comprises an airbag body in the shape of a strip, a first conductive part mounted on the inner upper surface of the airbag body, and a second conductive part mounted on the inner lower surface of the airbag body, and the first conductive part and the second conductive part are used for sensing that the airbag body is squashed when the first conductive part abuts against the second conductive part.

3. The adjustable hardness mattress of claim 2, wherein said contact bladder has a length direction perpendicular to the direction from the head of the bed to the foot of the bed, said contact bladder being obliquely stacked when not inflated.

4. The adjustable mattress of claim 2, wherein said bladder body is provided with a nozzle for connection to an air hose.

5. The adjustable firmness and mattress of claim 2 wherein said first conductive portion is planar and said second conductive portion comprises at least two spaced apart strip-like conductive portions.

6. The adjustable hardness mattress of claim 2, wherein said airbag body has a square, trapezoidal or circular cross-section.

7. The adjustable firmness cushion of claim 2 wherein the first and second electrically conductive portions are each wired to the controller.

8. The adjustable mattress according to any one of claims 1 to 7, wherein the outlet of said air pump, the inlet of said exhaust solenoid valve and the interface of said air pressure detector are connected by a three-way connection.