CN111544275A

CN111544275A - Self-adaptive locking cushion capable of regulating pressure

Info

Publication number: CN111544275A
Application number: CN202010379622.5A
Authority: CN
Inventors: 林弘
Original assignee: Guangdong Yuehua Medical Instrument Factory Co ltd
Current assignee: Guangdong Yuehua Medical Instrument Factory Co ltd
Priority date: 2020-05-08
Filing date: 2020-05-08
Publication date: 2020-08-18

Abstract

The invention discloses a self-adaptive locking cushion capable of regulating pressure, which comprises a plastic substrate layer, an air passage independent closing valve and a plastic air bag layer arranged on the plastic substrate layer; the plastic air bag layer comprises a first plastic film layer and a second plastic film layer which are sequentially attached to the upper surface of the plastic substrate layer, the first plastic film layer and the second plastic film layer form a plurality of first air bags and second air bags which are in one-to-one correspondence through plastic suction molding, and each first air bag protrudes into the inner cavity of the corresponding second air bag; the air passage independent sealing valve comprises a cylindrical valve seat, a valve core and two valve rods, wherein the two ends of the cylindrical valve seat are sealed, a sealing area and an opening area are arranged on the cylindrical valve seat, a plurality of air ports communicated with the inner cavity of the cylindrical valve seat are formed in the opening area, the length of the valve core is greater than that of the opening area, and the valve core is located in the inner cavity of the cylindrical valve seat. The self-adaptive locking cushion can regulate pressure and can self-adapt to different pressures, so that different parts of the hip of a human body have different pressure supports, and the probability of pressure sores is reduced.

Description

Self-adaptive locking cushion capable of regulating pressure

Technical Field

The invention relates to a cushion, in particular to a self-adaptive locking cushion capable of adjusting pressure.

Background

Pressure sores, also known as pressure ulcers and bedsores, are ischemic injuries of the skin and subcutaneous tissues of patients caused by local pressure on the skin of the patients due to inconvenient movement or bed rest and local blood circulation disorder. Once pressure sores occur, not only great physical and psychological pain and economic pressure are brought to patients, but also the workload of nurses is increased, and in severe cases, the patients can be endangered by septicemia caused by secondary infection. But most pressure sores are preventable.

At present, a separated air ring, a pressure sore prevention cool liquid cushion or other composite cushion is mainly used for preventing pressure sores. The cushion can be applied to a seat or a wheelchair for the old and the disabled, and can relieve the discomfort of the old and the disabled when sitting on the seat or the wheelchair for a long time. However, the current seat cushion can only adopt uniform pressure to support all parts of the human hip, different parts of the human hip have different pressures, the seat cushion can not be adjusted by self-adapting to different pressures, the comfort performance of the seat can not be well improved, and people who sit on the seat cushion for a long time feel uncomfortable and tired, so that new pressure sores can be caused, and the health is influenced.

Disclosure of Invention

The invention aims to solve the problem of providing a self-adaptive locking cushion capable of regulating pressure, which can be self-adaptive to different pressures, so that different parts of the hip of a human body have different pressure supports, and the probability of pressure sore generation is reduced.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

the utility model provides a self-adaptation locking cushion that can pressure regulating, includes plastic substrate layer and sets up the plastic bag layer on plastic substrate layer, its characterized in that: the device also comprises an air passage independent closing valve; the plastic air bag layer comprises a first plastic film layer and a second plastic film layer which are sequentially attached to the upper surface of the plastic substrate layer, the first plastic film layer and the second plastic film layer form a plurality of first air bags and second air bags which are in one-to-one correspondence through plastic suction molding, and each first air bag protrudes into the inner cavity of the corresponding second air bag; each first air bag is communicated; the second plastic film layer is divided into a plurality of independent and mutually isolated air bag areas, and the second air bags in each air bag area are mutually communicated; a first inflation head and at least one first air passage are arranged between the first plastic film layer and the plastic substrate layer, the first inflation head is communicated with each first air passage, and each first air passage is communicated with each first air bag; a second inflation head and a plurality of second air passages are arranged between the second plastic film layer and the first plastic film layer, the number of the second air passages is the same as that of the air bag areas and corresponds to that of the air bag areas one by one, each second air passage is provided with an inner connecting end and an outer connecting end, the second inflation head is communicated with one of the second air passages, and the inner connecting end of each second air passage is respectively communicated with a second air bag in the corresponding air bag area; the air passage independent closing valve is arranged on the plastic substrate layer; the air passage independent sealing valve comprises a cylindrical valve seat, a valve core and two valve rods, wherein the two ends of the cylindrical valve seat are sealed, a sealing area and an opening area are arranged on the cylindrical valve seat, a plurality of air ports communicated with the inner cavity of the cylindrical valve seat are formed in the opening area, the number of the air ports corresponds to the number of the second air passages one by one, the length of the valve core is greater than that of the opening area, the valve core is positioned in the inner cavity of the cylindrical valve seat, the valve core is tightly matched with the inner cavity of the cylindrical valve seat and can slide along the length direction of the inner cavity of the cylindrical valve seat, the inner ends of the two valve rods are respectively connected; the external connection end of each second air passage is respectively connected with the corresponding air port.

The valve rod is pushed manually to enable the valve core to slide along the length direction of the inner cavity of the cylindrical valve seat, and when the valve core slides to the opening area and closes each air port (the valve core covers and seals each air port), the second air bags between any two adjacent air bag areas are not communicated, so that the corresponding second air passages of each air bag area are also not communicated; when the valve core slides to the closed area to open each air port (the valve core is far away from each air port), the second air bag of each air bag area is communicated with the inner cavity of the cylindrical valve seat through the corresponding second air passage and the air port. Usually, the valve body is made of rubber.

The first gasbag cladding of each of first plastics rete constitutes double-deck gasbag structure between second plastics rete and plastics stratum basale, can not see first plastics rete from the outside of cushion for double-deck gasbag structure is compacter. The second plastic film layer is not communicated with the first plastic film layer, is provided with an independent inflation head and can be inflated independently, because the second plastic film layer is in a locking state when a user sits on the cushion, when the air pressure of the second plastic film layer air bag is insufficient, the second plastic film layer is directly inflated without opening a second inflation head and an air passage independent closing valve of the second plastic film layer, can supply atmospheric pressure through the first head of aerifing of first plastics rete, make the second gasbag of each first gasbag support and jack-up second plastics rete full gradually, make the second gasbag of second plastics rete still keep original saturation, can carry out the pressure regulating to second plastics rete, supplementary second gasbag pressure and the duration of this pressure that maintains in each gasbag district, avoid the second gasbag of second plastics rete to sink, make human buttock can receive pressure intermittently.

The use steps of the self-adaptive locking cushion capable of regulating pressure are as follows:

step 1: firstly, an external inflation device is connected to the first inflation head to inflate the first plastic film layer, and the first air bags are communicated, so that the first air bags are inflated with proper air pressure and automatically expanded into a columnar shape, and then the first inflation head is closed;

step 2: firstly, opening an air passage independent closing valve: the valve rod is pushed manually to enable the valve core to slide, the valve core slides to a closed area to enable each air port to be opened, and the second air bag of each air bag area is communicated with the inner cavity of the cylindrical valve seat through the corresponding second air passage and the air port; then, an inflating device is externally connected to the second inflating head, so that each second air bag is inflated into a certain amount of air pressure to automatically expand into a columnar shape (generally, the air in the second air bag is in a half-full state), and then the second inflating head is closed;

and step 3: firstly, a user sits on a cushion, the cushion is pressed according to the self gravity of the user, the pressure applied to each air bag area by each part of the hip of the user is different, so that the pressure of the second air bag in each air bag area is different, and when the user can feel stable and comfortable when sitting on the cushion, the air passage independent closing valve is closed, so that the pressure of the second air bag in each air bag area is kept fixed;

and 4, step 4: if a user feels that the user sits on the cushion and feels that the user is hard, the user can open the first inflation head to enable each first air bag of the first plastic film layer to release quantitative air pressure, and each first air bag appropriately contracts downwards to enable the air pressure in the second air bag of each air bag area to be correspondingly reduced;

and 5: if the user feels too soft after sitting on the cushion, the user can enable each first air bag of the first plastic film layer to be filled with quantitative air pressure by opening the first inflating head, and each first air bag is properly jacked upwards, so that the air pressure in the second air bag of each air bag area is correspondingly increased.

When the cushion does not need to be used, only need open simultaneously first inflatable head, head and the independent closed valve of air flue are inflated to the second, press each second gasbag on the second plastics rete, also press each first gasbag on the first plastics rete simultaneously, the gas on first plastics rete is discharged through first inflatable head from each first gasbag, the gas on second plastics rete is from each second gasbag through corresponding second air flue, the gas port enters into tube-shape disk seat inner chamber, extrude the second gasbag at second inflatable head place with gas in the tube-shape disk seat inner chamber again, make gas discharge from the second inflatable head, the height and the volume of cushion diminish this moment, it is very convenient to go out the door and carry, can be applied to any seat. The self-adaptive locking cushion capable of adjusting pressure can be placed on a sofa, a seat or a wheelchair for use.

As a preferable aspect of the present invention, the top of each second airbag is an upwardly convex arc surface. The top of the second air bag which is an upward convex cambered surface has no obvious edge angle, so that the contact area between the hip of the user and the second air bag is increased, the defects of stress concentration and the like caused by acute angles are avoided, the load is dispersed, and the pain can not be felt by the hip of the user in the long-term contact process. The cross-sectional shape of the second airbag may be trapezoidal, square, rectangular, or a quadrangle star shape.

In a preferred embodiment of the present invention, the second plastic film layer is divided into four cell areas, the four cell areas include a first cell area, a second cell area, a third cell area and a fourth cell area, each of the second cells in the first cell area is arranged in a matrix, each of the second cells in the second cell area, the third cell area and the fourth cell area is arranged in a U shape, the second cell area surrounds the periphery of the first cell area, the third cell area surrounds the periphery of the second cell area, and the fourth cell area surrounds the periphery of the third cell area. Through the arrangement, each second air bag area on the seat cushion can be layered, and a user can sit comfortably.

As a further preferable aspect of the present invention, the respective second cells in the first cell zone have an inflation height lower than that of the respective second cells in the second cell zone, the respective second cells in the second cell zone have an inflation height lower than that of the respective second cells in the third cell zone, and the respective second cells in the third cell zone have an inflation height lower than that of the respective second cells in the fourth cell zone. When in use, each second air bag in the first air bag area is positioned between two thighs, so that the second air bags in the first air bag area can be prevented from extruding the inner sides of the thighs; each second air bag in the second air bag area and the third air bag area is positioned below the hip part, so that the hip part of a user can be supported, and the skin of the hip part is prevented from contacting the same position for a long time; each of the second air cells in the fourth air cell region is located at the periphery of the buttocks (i.e., a position where the buttocks extend toward the waist), so that each of the second air cells in the outermost fourth air cell region supports the buttocks peripheral portion, making it more comfortable for a user to sit.

Compared with the prior art, the invention has the following advantages:

this kind of self-adaptation locking cushion can the pressure regulating to the pressure that self adaptation user self was applyed locks the cushion, avoid the cushion gas leakage, and then adjust different gasbag district, make the different positions of human buttock have different pressure and support, have better elastic support performance, can alleviate the pressure of buttock, avoid buttock and seat direct contact, alleviate user's uncomfortable feeling and tired out the sense, reduce the probability that causes pressure sore, the comfort performance of improvement seat that can be better, user comfort level is improved.

Drawings

FIG. 1 is a schematic block diagram of an embodiment of the present invention;

fig. 2 is a schematic structural diagram of the second air passage, the air bag area and the air passage independent closing valve in the embodiment of the invention.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-2, the pressure-adjustable self-adaptive locking cushion in this embodiment includes a plastic substrate layer 1, an air passage independent closing valve 2, and a plastic bag layer 3 disposed on the plastic substrate layer 1, where the plastic bag layer 3 includes a first plastic film layer 31 and a second plastic film layer 32 sequentially attached to the plastic substrate layer 1, the first plastic film layer 31 and the second plastic film layer 32 are formed into a plurality of first air bags 311 and second air bags 321 in a one-to-one correspondence by blister forming, and each first air bag 311 protrudes into an inner cavity of the corresponding second air bag 321; the first air bags 311 are communicated; the second plastic film layer 32 is divided into four independent and mutually isolated air bag regions 4, and the second air bags 321 in each air bag region 4 are mutually communicated; the four balloon regions 4 comprise a first balloon region 41, a second balloon region 42, a third balloon region 43 and a fourth balloon region 44; a first inflation head 5 and a first air passage 6 are arranged between the first plastic film layer 31 and the plastic substrate layer 1, the first inflation head 5 is communicated with the first air passage 6, and the first air passage 6 is communicated with each first air bag 311; a second inflation head 7 and four second air passages 8 are arranged between the second plastic film layer 32 and the first plastic film layer 31, the number of the second air passages 8 is the same as that of the air bag areas 4 and corresponds to that of the air bag areas 4 one by one, each second air passage 8 is provided with an inner connection end 81 and an outer connection end 82, the second inflation head 7 is communicated with one of the second air passages 8, and the inner connection end 81 of each second air passage 8 is respectively communicated with a second air bag 321 in the corresponding air bag area 4; the air passage independent closing valve 2 is arranged on the plastic substrate layer 1; the air passage independent closing valve 2 comprises a cylindrical valve seat 21 with two closed ends, a valve core 22 and two valve rods 23, wherein the cylindrical valve seat 21 is provided with a closed area 211 and an opening area 212, the opening area 212 is provided with a plurality of air ports 213 communicated with the inner cavity of the cylindrical valve seat 21, the number of the air ports 213 corresponds to the number of the second air passages 8 one by one, the length of the valve core 22 is greater than that of the opening area 212, the valve core 22 is positioned in the inner cavity of the cylindrical valve seat 21, the valve core 22 is tightly matched with the inner cavity of the cylindrical valve seat 21 and can slide along the length direction of the inner cavity of the cylindrical valve seat 21, the inner ends of the two valve rods 23 are respectively connected with the valve core 22, and the outer ends; the outer connection end 82 of each second air duct 8 is connected to the corresponding air port 213.

For the sake of simplicity in fig. 2, the first airbag 311 in fig. 2 is labeled three only in the outermost, fourth airbag zone 44.

The valve rod 23 is pushed manually to enable the valve core 22 to slide along the length direction of the inner cavity of the cylindrical valve seat 21, when the valve core 22 slides to the opening area 212 and closes each air port 213 (the valve core 22 covers and seals each air port 213), the second air bags 321 between any two adjacent air bag areas 4 are not communicated, so that the corresponding second air passages 8 of each air bag area 4 are also not communicated; when the valve core 22 slides to the closed region 211 to open each gas port 213 (the valve core 22 is far away from each gas port 213), the second air bag 321 of each air bag region 4 is communicated with the inner cavity of the cylindrical valve seat 21 through the corresponding second air passage 8 and the gas port 213. The valve body 22 is usually made of rubber.

Each first air bag 311 of the first plastic film layer 31 is wrapped between the second plastic film layer 32 and the plastic substrate layer 1 to form a double-layer air bag structure, and the first plastic film layer 31 cannot be seen from the outer side of the cushion, so that the double-layer air bag structure is more compact. The second plastic film 32 is not communicated with the first plastic film 31, and has an independent inflation head, which can inflate independently, because the user sits on the cushion, the second plastic film 32 is in a locked state, when the air pressure of the second plastic film 32 air bag is insufficient, the second inflation head 7 of the second plastic film 32 and the air passage independent closing valve 2 do not need to be opened to inflate the second plastic film 32 directly, the air pressure can be supplemented through the first inflation head 5 of the first plastic film 31, so that each gradually full first air bag 311 supports and jacks up the second air bag 321 of the second plastic film 32, the second air bag 321 of the second plastic film 32 still keeps the original saturation, the pressure of the second plastic film 32 can be adjusted, the pressure of the second air bag 321 in each air bag area 4 and the duration time of the pressure are maintained in an auxiliary way, and the second air bag 321 of the second plastic film 32 is prevented from collapsing, so that the buttocks of the human body can be intermittently pressed.

The top of each second air cell 321 is an upwardly convex arc. The top of the second air bag 321 which is an upward convex cambered surface has no obvious edge angle, so that the contact area between the hip of the user and the second air bag 321 is increased, the defects of stress concentration and the like caused by acute angles are avoided, the load is dispersed, and the pain can not be felt by the hip of the user in the long-term contact process. The cross-sectional shape of the second air cell 321 may be trapezoidal, square, rectangular, or a quadrangle star shape.

The second cells 321 in the first cell region 41 are arranged in a matrix, and the second cells 321 in the second, third and

fourth cell regions

42, 43, 44 are arranged in a U-shape, with the second cell region 42 surrounding the periphery of the first cell region 41, the third cell region 43 surrounding the periphery of the second cell region 42, and the fourth cell region 44 surrounding the periphery of the third cell region 43. With this arrangement, each second air bag section 42 on the seat cushion can be made more layered, making the user more comfortable to sit.

The respective second cells 321 in the first cell zone 41 have an inflation height lower than the inflation height of the respective second cells 321 in the second cell zone 42, the respective second cells 321 in the second cell zone 42 have an inflation height lower than the inflation height of the respective second cells 321 in the third cell zone 43, and the respective second cells 321 in the third cell zone 43 have an inflation height lower than the inflation height of the respective second cells 321 in the fourth cell zone 44. When in use, the second air cells 321 in the first air cell region 41 are positioned between two thighs, so that the second air cells 321 in the first air cell region 41 can avoid pressing the inner sides of the thighs; the second air cells 321 in the second air cell region 42 and the third air cell region 43 are positioned below the buttocks, so that the buttocks of a user can be supported, and the skin of the buttocks is prevented from contacting the same position for a long time; each second air cell 321 in the fourth air cell region 44 is located at the periphery of the buttocks (i.e., a position where the buttocks extend toward the waist), so that each second air cell 321 in the outermost fourth air cell region 44 supports the buttocks peripheral portion, making the user more comfortable to sit.

step 1: firstly, an external inflation device is connected to the first inflation head 5 to inflate the first plastic film layer 31, and the first air bags 311 are communicated, so that the first air bags 311 are inflated with proper air pressure to automatically expand into a columnar shape, and then the first inflation head 5 is closed;

step 2: firstly, opening the air passage independent closing valve 2: the valve rod 23 is pushed manually to slide the valve core 22, the valve core 22 slides to the closed area 211 to open each air hole 213, and the second air bag 321 of each air bag area 4 is communicated with the inner cavity of the cylindrical valve seat 21 through the corresponding second air passage 8 and the air hole 213; then, an inflating device is externally connected to the second inflating head 7, so that each second air bag 321 is inflated into a certain amount of air pressure to automatically expand into a columnar shape (generally, the air in the second air bag 321 is in a half-full state), and then the second inflating head 7 is closed;

and step 3: firstly, a user sits on the cushion, the cushion is pressed according to the self gravity of the user, the pressure applied to each air bag region 4 by each part of the hip of the user is different, so that the pressure of the second air bag 321 of each air bag region 4 is different, and when the user can feel stable and comfortable when sitting on the cushion, the air passage independent closing valve 2 is closed, so that the pressure of the second air bag 321 of each air bag region 4 is kept fixed;

and 4, step 4: if the user feels hard, the user can open the first inflation head 5 to make each first air bag 311 of the first plastic film layer 31 release a certain amount of air pressure, and each first air bag 311 contracts downwards appropriately to make the air pressure in the second air bag 321 of each air bag zone 4 reduce correspondingly;

and 5: if the user feels too soft after sitting on the seat cushion, the user can open the first inflation head 5 to inflate the first air cells 311 of the first plastic film 31 with a certain amount of air pressure, and the first air cells 311 are properly lifted upwards to increase the air pressure in the second air cells 321 of the air cell zones 4 correspondingly.

When the cushion is not used, only the first inflation head 5, the second inflation head 7 and the air passage independent closing valve 2 need to be opened simultaneously, each second air bag 321 on the second plastic film layer 32 is pressed, each first air bag 311 on the first plastic film layer 31 is pressed simultaneously, the gas of the first plastic film layer 31 is discharged from each first air bag 311 through the first air passage 6 through the first inflation head 5, the gas of the second plastic film layer 32 enters the inner cavity of the cylindrical valve seat 21 from each second air bag 321 through the corresponding second air passage 8 and the corresponding air port 213, and then is extruded into the second air bag 321 where the second inflation head 7 is located from the inner cavity of the cylindrical valve seat 21, so that the gas is discharged from the second inflation head 7, at the moment, the height and the volume of the cushion are reduced, the cushion is very convenient to carry when going out of the door, and can be applied to any seat. The self-adaptive locking cushion capable of adjusting pressure can be placed on a sofa, a seat or a wheelchair for use.

In addition, it should be noted that the names of the parts and the like of the embodiments described in the present specification may be different, and the equivalent or simple change of the structure, the characteristics and the principle described in the present patent idea is included in the protection scope of the present patent. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a self-adaptation locking cushion that can pressure regulating, includes plastic substrate layer and sets up the plastic bag layer on plastic substrate layer, its characterized in that: the device also comprises an air passage independent closing valve; the plastic air bag layer comprises a first plastic film layer and a second plastic film layer which are sequentially attached to the upper surface of the plastic substrate layer, the first plastic film layer and the second plastic film layer form a plurality of first air bags and second air bags which are in one-to-one correspondence through plastic suction molding, and each first air bag protrudes into the inner cavity of the corresponding second air bag; each first air bag is communicated; the second plastic film layer is divided into a plurality of independent and mutually isolated air bag areas, and the second air bags in each air bag area are mutually communicated; a first inflation head and at least one first air passage are arranged between the first plastic film layer and the plastic substrate layer, the first inflation head is communicated with each first air passage, and each first air passage is communicated with each first air bag; a second inflation head and a plurality of second air passages are arranged between the second plastic film layer and the first plastic film layer, the number of the second air passages is the same as that of the air bag areas and corresponds to that of the air bag areas one by one, each second air passage is provided with an inner connecting end and an outer connecting end, the second inflation head is communicated with one of the second air passages, and the inner connecting end of each second air passage is respectively communicated with a second air bag in the corresponding air bag area; the air passage independent closing valve is arranged on the plastic substrate layer; the air passage independent sealing valve comprises a cylindrical valve seat, a valve core and two valve rods, wherein the two ends of the cylindrical valve seat are sealed, a sealing area and an opening area are arranged on the cylindrical valve seat, a plurality of air ports communicated with the inner cavity of the cylindrical valve seat are formed in the opening area, the number of the air ports corresponds to the number of the second air passages one by one, the length of the valve core is greater than that of the opening area, the valve core is positioned in the inner cavity of the cylindrical valve seat, the valve core is tightly matched with the inner cavity of the cylindrical valve seat and can slide along the length direction of the inner cavity of the cylindrical valve seat, the inner ends of the two valve rods are respectively connected; the external connection end of each second air passage is respectively connected with the corresponding air port.

2. An adaptive pressure adjustable locking seat cushion as defined in claim 1, wherein: the top of each second air bag is an upward convex cambered surface.

3. An adaptive pressure adjustable locking seat cushion as defined in claim 1, wherein: the second plastic film layer is divided into four air bag areas, the four air bag areas comprise a first air bag area, a second air bag area, a third air bag area and a fourth air bag area, all the second air bags in the first air bag area are arranged in a matrix mode, all the second air bags in the second air bag area, the third air bag area and the fourth air bag area are arranged in a U shape, the second air bag area surrounds the periphery of the first air bag area, the third air bag area surrounds the periphery of the second air bag area, and the fourth air bag area surrounds the periphery of the third air bag area.

4. An adaptive pressure adjustable locking seat cushion as set forth in claim 3, wherein: the respective second cells in the first cell zone have an inflation height that is less than the inflation height of the respective second cells in the second cell zone, the respective second cells in the second cell zone have an inflation height that is less than the inflation height of the respective second cells in the third cell zone, and the respective second cells in the third cell zone have an inflation height that is less than the inflation height of the respective second cells in the fourth cell zone.