WO2023082525A1 - 进气阀以及具有进气阀的缓冲气囊装置 - Google Patents

进气阀以及具有进气阀的缓冲气囊装置 Download PDF

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Publication number
WO2023082525A1
WO2023082525A1 PCT/CN2022/083131 CN2022083131W WO2023082525A1 WO 2023082525 A1 WO2023082525 A1 WO 2023082525A1 CN 2022083131 W CN2022083131 W CN 2022083131W WO 2023082525 A1 WO2023082525 A1 WO 2023082525A1
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WO
WIPO (PCT)
Prior art keywords
air
hole
ball
air intake
intake
Prior art date
Application number
PCT/CN2022/083131
Other languages
English (en)
French (fr)
Inventor
蔡佩霖
Original Assignee
东莞市佳栓实业有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202111331587.0A external-priority patent/CN114041942A/zh
Application filed by 东莞市佳栓实业有限公司 filed Critical 东莞市佳栓实业有限公司
Priority to CN202280005882.3A priority Critical patent/CN117241696A/zh
Publication of WO2023082525A1 publication Critical patent/WO2023082525A1/zh

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Classifications

    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B17/00Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • A43B17/02Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined wedge-like or resilient
    • A43B17/03Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined wedge-like or resilient filled with a gas, e.g. air
    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45CPURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C13/00Details; Accessories
    • A45C13/30Straps; Bands
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C27/00Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/08Fluid mattresses or cushions
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C27/00Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/08Fluid mattresses or cushions
    • A47C27/10Fluid mattresses or cushions with two or more independently-fillable chambers
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G13/00Operating tables; Auxiliary appliances therefor
    • A61G13/10Parts, details or accessories
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/05Parts, details or accessories of beds
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/08Body-protectors for players or sportsmen, i.e. body-protecting accessories affording protection of body parts against blows or collisions
    • A63B71/12Body-protectors for players or sportsmen, i.e. body-protecting accessories affording protection of body parts against blows or collisions for the body or the legs, e.g. for the shoulders
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/08Body-protectors for players or sportsmen, i.e. body-protecting accessories affording protection of body parts against blows or collisions
    • A63B71/14Body-protectors for players or sportsmen, i.e. body-protecting accessories affording protection of body parts against blows or collisions for the hands, e.g. baseball, boxing or golfing gloves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00Safety belts or body harnesses in vehicles
    • B60R22/12Construction of belts or harnesses
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62JCYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J1/00Saddles or other seats for cycles; Arrangement thereof; Component parts
    • B62J1/18Covers for saddles or other seats; Paddings
    • B62J1/26Paddings involving other resilient material, e.g. sponge rubber with inflatable compartments
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00Check valves
    • F16K15/20Check valves specially designed for inflatable bodies, e.g. tyres

Definitions

  • the invention belongs to the field of living appliances, in particular to an inflated buffer air bag device.
  • This airbag cushion has a plurality of airbags connected to each other and air inlets, through which external air enters the airbags.
  • the above-mentioned airbag cushion has a defect. After the gas enters the airbag of the airbag cushion, a part of the gas slowly leaks to the outside through the air inlet. When the gas in the airbag is insufficient in the time cushion body, it needs to be inflated again, which causes inconvenient use.
  • the present invention provides a cushion airbag device for preventing air leakage.
  • An air intake valve which is installed in a buffer airbag device, the air intake valve is sequentially formed with an air intake hole, a vent hole and an air outlet hole, one side of the air intake hole is connected to the air vent hole in communication, And the other side communicates with the outside, the air outlet is communicated with the buffer airbag device, the air inlet and the air vent, the air intake valve includes a ball, and the ball is movably accommodated in the air vent.
  • the ball moves toward the air inlet hole in the air hole and blocks the air inlet hole, so that the air inlet hole The air hole is in a closed state, thereby preventing the gas in the cushioning airbag device from leaking from the air intake hole;
  • the ball moves toward the air outlet in the vent hole and opens the air inlet, so that the air inlet changes from a closed state to a ventilated state, so that the external air Enter the buffer airbag device through the air intake hole, the ventilation hole and the air outlet hole.
  • the diameter of the vent hole away from the air inlet hole is larger than the diameter of the ball, and the diameter of the air inlet hole is smaller than the diameter of the ball, so that the ball can block the air inlet hole, Therefore, the gas in the cushion airbag device can be prevented from leaking through the air intake hole.
  • the length of the air outlet is greater than the diameter of the ball, thereby preventing the ball from blocking the air outlet, and the width of the air outlet is smaller than the diameter of the ball, thereby preventing the ball from being blocked by the air outlet. fall out.
  • a cushioning air bag device which includes an air intake air bag and a plurality of air bags, one side of the air intake air bag communicates with the plurality of air bags, and the other side of the air intake air bag has an air inlet
  • the The buffer airbag device also includes an air intake valve, the air intake valve is installed on the air intake port, and the air intake valve is sequentially formed with an air intake hole, a ventilation hole and an air outlet hole, and one side of the air intake hole is connected to the air outlet.
  • the air holes are connected together in communication, and the other side communicates with the outside, the air outlet hole is arranged close to the air intake bag, and is arranged in communication with the air intake air bag, the air inlet hole and the air hole,
  • the intake valve includes a ball, which is movably accommodated in the vent hole.
  • the ball moves toward the vent hole toward the The air intake hole moves and blocks the air intake hole, so that the air intake hole is in a closed state, thereby preventing the gas in the air intake air bag from leaking from the air intake hole; when the air intake air bag is released And when changing from the compressed state to the released state, under the action of the pressure difference, the ball moves toward the air outlet hole in the air hole and opens the air inlet hole, so that the air inlet hole changes from the closed state to the air outlet hole.
  • a ventilation state external air enters the intake airbag through the air intake hole, the ventilation hole and the air outlet hole.
  • the diameter of the vent hole away from the air inlet hole is larger than the diameter of the ball, and the diameter of the air inlet hole is smaller than the diameter of the ball, so that the ball can block the air inlet hole, Therefore, the gas in the intake air bag can be prevented from leaking through the intake hole.
  • the length of the air outlet is greater than the diameter of the ball, thereby preventing the ball from blocking the air outlet, and the width of the air outlet is smaller than the diameter of the ball, thereby preventing the ball from being blocked by the air outlet. fall out.
  • the air intake valve also includes an air outlet piece and an air inlet piece, the air outlet piece is fixedly installed on the air inlet, and the air outlet hole is opened on the air outlet piece, and the air inlet piece is snapped into the The air outlet part, and the air inlet hole and the vent hole are sequentially formed in the air inlet part, and the ball is movably installed between the air outlet part and the air inlet part.
  • the air inlet part includes an installation part and an air inlet part, the installation part is snapped into the air outlet part, and the air inlet hole is opened through the installation part, and the air inlet part is opened from the air outlet part.
  • One side of the installation part protrudes, and the air hole is opened through it.
  • the installation hole has a guiding slope
  • the side wall of the installation part is formed with a slope
  • the slope slides into the air outlet member along the guiding slope
  • the inside of the air outlet part has a cavity communicating with the installation hole and the air outlet hole, and there is an inner edge protruding inward at the connection between the cavity and the installation hole, and the air inlet part
  • the installation part is protrudingly provided with an engaging protrusion, and in the cavity, the engaging protrusion engages with the inner edge, so as to prevent the air intake part from The installation part is disengaged from the cavity of the air outlet part through the installation hole.
  • the cushion airbag assembly designed by the present invention realizes the prevention of slow gas leakage through a simple one-way air intake, thereby effectively preventing the air leakage of the cushion airbag device, and furthermore, it does not need to be inflated frequently, and is easy to use .
  • FIG. 1 is a schematic diagram of a cushion airbag device according to a first embodiment of the present invention.
  • Fig. 2 is a perspective view of the cushion airbag device according to the first embodiment of the present invention.
  • Fig. 3 is a schematic view of the one-way air intake part of the cushion airbag device according to the first embodiment of the present invention.
  • FIG 4 is an exploded exploded view of an intake valve of the cushion airbag device according to the first embodiment of the present invention.
  • FIG 5 is an exploded cross-sectional view of an intake valve of the cushion airbag device according to the first embodiment of the present invention.
  • FIG. 6 is a schematic diagram of an air outlet surface of an intake valve of the cushion airbag device according to the first embodiment of the present invention.
  • FIG. 7 is a schematic cross-sectional view of an intake valve of a cushion airbag device according to a second embodiment of the present invention.
  • FIG. 1 and FIG. 2 are a cushion airbag device 200 according to a first embodiment of the present invention, which includes a body 201 and a cushion airbag assembly 100 disposed on the body 201 .
  • the body 201 includes a plurality of airbags 205 connected through a plurality of airways 203 , and one airbag 205 of the plurality of airbags 205 communicates with the cushioning airbag assembly 100 through an airway 203 .
  • the cushion airbag assembly 100 includes an air intake component 10 that is communicatively connected to a plurality of airbags 205 through a plurality of air passages 203 .
  • the intake component 10 has a first airbag 2 (intake airbag), a second airbag 4 , a first airway 3 , a third airbag 8 and an elastic body 21 .
  • the first airbag 2 has an air intake function, and has an air inlet 1 on one side of the first airbag 2, and the other side of the first airbag 2 communicates with the second airbag 4 through the first air channel 3, so that the gas flows from the first airbag 2.
  • An airbag 2 enters the second airbag 4 through the first airway 3 .
  • the second airbag 4 communicates with a plurality of airbags 205 through a plurality of airways 203 .
  • the first airbag 2 and the second airbag 4 are connected in series, so that the gas flows in one direction, so as to realize the buffering effect.
  • the third airbag 8 communicates with an airbag 205 of the main body 201 through an air passage 203 , and the third airbag 8 has an air outlet 5 for removing the air in the seat cushion 200 .
  • the third airbag 8 is an airbag at the end, and is arranged adjacent to and communicated with the first airbag 2 , so that the multiple airbags of the overall seat cushion 200 are arranged in a compact structure, thereby achieving a cushioning effect. It can be understood that the position of the third airbag 8 can be set according to actual needs.
  • the elastic body 21 is arranged in the first airbag 2 and can support the first airbag 2 to bounce up, so that the first airbag 2 is filled with gas, so that the first airbag 2 can be inhaled and discharged.
  • the elastic body is any one of sponge body, plastic body, spring, rubber, and silica gel, as long as it has elastic parts.
  • the elastic body 21 is only arranged in the first airbag 2 , but the second airbag 4 can also be provided with the elastic body 41 according to actual needs.
  • the elastic body 21 in the first airbag 2 will be compressed, and after the extrusion or pressing is released, the first airbag 2 is released, and under the action of the elastic reset of the elastic body 21, the elastic body 21 supports The first airbag 2 is reset, and at this time, under the action of the pressure difference, the gas is sucked into the first airbag 2 through the air inlet 1, and enters into the second airbag 4 and the plurality of airbags 205 through the first airway 3, thereby The entire cushion airbag device 200 is filled with gas. Therefore, when pressure is encountered, the cushioning airbag device 200 can be compressed, thereby achieving a cushioning effect.
  • the cushion air bag assembly 100 may also include a one-way air intake member 6, which is arranged in the first air bag 2, the second air bag 4 and the first air channel 3, so that the first air bag can The gas in the air bag 2 is unidirectionally fed into the second air bag 4.
  • the one-way air intake member 6 includes an upper piece 61 and a lower piece 62 .
  • the side edge 611 of the upper sheet 61 and the side edge 621 of the lower sheet 62 are bonded together by high-frequency voltage, so that the structure of the one-way air intake part 6 is that the two ends of the upper sheet 61 and the lower sheet 62 are open and both sides are closed and closed. A structure in which both ends are connected to the middle.
  • One of the two ends of the one-way air intake part 6, that is, the first end, is attached to the inner wall of the first air bag 2 and the first air channel 3 respectively by high-frequency voltage, so that the first end of the one-way air intake part 6 is always Open state.
  • the other end of the two ends of the one-way air intake element 6 that is, the second end and the middle part of the one-way air intake element 6 are located in the second airbag 4 .
  • the upper sheet 61 and the lower sheet 62 are plastic sheets, the whole is flat, and when the middle part of the one-way air inlet member 6 and the upper sheet 61 and the lower sheet 62 at the second end contact each other, they can have Adsorption, thus acting to be able to close the airways.
  • the cushion airbag device 200 squeeze or press the first airbag 2, at this time the elastic body 21 in the first airbag 2 will be compressed, and the gas in the first airbag 2 will pass through the first airbag 6 in the open state.
  • One end enters the middle part of the one-way air inlet 6, and at this time, the upper sheet 61 and the lower sheet 62 of the middle part of the one-way air inlet 6 that are in contact with each other are stretched by the pressure of the gas to open the passage, and this
  • the second end of the one-way air intake part 6 is also stretched by the pressure of the gas, so that the gas enters the second air bag 4 from the channel and the second end of the one-way air intake part 6, and then enters through a plurality of air passages 203 to a plurality of airbags 205, and then the gas is filled with the entire cushion 200.
  • the first airbag 2 When the extrusion or pressing is released, the first airbag 2 is released, and under the elastic reset action of the elastic body 21, the first airbag 2 springs up and resets.
  • the state of being in contact together is to close the air passage, and the second end of the one-way air intake part 6 is also in a closed state, thereby preventing the gas in the second airbag 4 from flowing back into the first airbag 2, thereby realizing one-way air intake, and also Effectively prevent air leakage.
  • the cushion airbag assembly 100 may further include an intake valve 10 installed at the intake port 1 .
  • the intake valve 10 is a one-way intake valve, so that the gas can only be taken in from the intake port 1 but cannot be discharged.
  • the intake valve 10 includes an outlet member 11 , a ball 12 and an inlet member 13 .
  • the air outlet piece 11 is installed on the air inlet 1 and communicates with the first air bag 2.
  • the air inlet piece 13 is snapped into the air outlet piece 11 and communicated with the air outlet piece 11.
  • the ball 12 is movably installed on the air outlet piece 11 and the air inlet piece 13. Between, the one-way air intake is realized by the movement of the ball 12.
  • the air outlet member 11 includes an air inlet surface 117 and an air outlet surface 119 oppositely disposed, and a side surface 118 located on the air inlet surface 117 and the air outlet surface 119 .
  • a mounting hole 114 is opened from the air inlet surface 117 toward the air outlet surface 119 .
  • An air outlet hole 112 is opened from the air outlet surface 119 toward the air inlet surface 117 .
  • the air outlet part 11 has a cavity 111 inside, and an installation hole 114 , cavity 111 , and air outlet 112 are opened in sequence, and the installation hole 114 , cavity 111 , and air outlet 112 are arranged in communication.
  • the installation hole 114 is conical, and the diameter of the installation hole 114 becomes smaller as it gets closer to the cavity 111 , that is to say, the diameter of the installation hole 114 near the air intake surface 117 is larger than the diameter near the cavity 111 . Specifically, it is recessed from the air inlet surface 117 toward the air outlet surface 119 .
  • the installation hole 114 has a guide inclined surface 1141 , which is inclined from the air inlet surface 117 to the air outlet surface 119 for guiding a part of the air inlet part 13 to slide into the cavity 111 of the air outlet part 11 .
  • the air outlet hole 112 is a strip-shaped opening, the opening length of the air outlet hole 112 is greater than the diameter of the ball 12, and the opening width of the air outlet hole 112 is smaller than the diameter of the ball 12, therefore, the ball 12 will not fall out from the air outlet 112, and also The air outlet hole 112 is not completely closed, so that the ball 12 does not hinder the air outlet function of the air outlet hole 112 .
  • the air outlet hole 112 is a straight hole. It can be understood that the shape of the air outlet 112 can also be oval, rectangular, etc., as long as the ball 12 does not completely block the air outlet 112 .
  • the intake member 13 includes a mounting portion 131 and an intake portion 132 .
  • the mounting portion 131 is snapped into the cavity 111 , and the mounting portion 131 is conical.
  • the installation portion 131 has a funnel-shaped air hole 133 .
  • the air hole 133 is recessed from a side of the mounting portion 131 away from the air intake portion 132 and is used for receiving the ball 12 .
  • the shape of the mounting portion 131 matches the shape of the mounting hole 114 .
  • the sidewall of the mounting portion 131 is formed with a slope 1311 , the slope 1311 is gradually inclined from the side of the mounting portion 131 away from the air intake portion 132 toward the air intake portion 132 , and the diameter of the mounting portion 131 becomes larger as it gets closer to the air intake portion 132 .
  • the inclined surface 1311 slides into the cavity 111 along the guiding inclined surface 1141 , so as to facilitate the installation of the installation portion 131 of the air intake element 13 in the cavity 111 .
  • the ball 12 is located between the air hole 133 of the mounting portion 131 and the air outlet surface 119 of the air outlet member 11, so that the ball 12 can roll freely in the air hole 133 and cannot escape from the air hole 133.
  • the ball 12 is spherical. It can be understood that the shape of the ball 12 can be designed according to actual needs.
  • the diameter of the conical air hole 133 gradually decreases from the side of the air hole 133 away from the air inlet portion 132 toward the air inlet portion 132, and the diameter of the air hole 133 on the side far away from the air inlet portion 132 is larger than that of the ball 12.
  • diameter, and the diameter of the air hole 133 close to the air intake portion 132 is smaller than the diameter of the ball 12.
  • the air intake portion 132 is cylindrical and protrudes from one side of the installation portion 131 .
  • the air intake portion 132 is penetrated with an air intake hole 134 , and the air intake hole 134 and the air hole 133 are arranged in sequence, and the air intake hole 134 and the air hole 133 are connected for air intake.
  • the air inlet 134 is a circular hole.
  • the diameter of the air inlet portion 132 is smaller than the diameter of the installation portion 131 , so at the connection between the air inlet portion 132 and the installation portion 131 , an engaging protrusion 1313 protrudes from the installation portion 131 .
  • the engaging protrusion 1313 engages with the inner edge 113 , so that the mounting portion 131 of the air inlet component 13 cannot be disengaged from the cavity 111 of the gas outlet component 11 .
  • the diameter of the air inlet hole 134 is smaller than that of the ball 12, so that the ball 12 can block the air inlet hole 134 to prevent the gas in the first airbag 2 from flowing back to the outside.
  • the ball 12 is moved along the channel.
  • the inclined inner wall of the air hole 133 slides towards the air outlet hole 112 of the air outlet member 11, so that the air inlet hole 134 changes from a closed state to a ventilated state, so that gas enters the first air bag 2 through the air hole 133 and the air outlet hole 112, so that the first air bag 2 filled with gas.
  • the structure of the intake valve 10 is not limited to the structure including the outlet member 11 and the intake member 13 , referring to FIG. 7 , the intake valve 10 of the second embodiment of the present invention.
  • the intake valve 10 of the second embodiment has substantially the same structure as that of the intake valve 10 of the first embodiment, except that the intake valve 10 of the second embodiment includes a housing 14 and is sealingly fixed to the housing 14 One side of the cover part 16.
  • An air inlet 134 and an air vent 133 are sequentially formed inside the casing 14, and an air outlet 112 is opened through the cover 16, so that compared with the inlet valve 10 of the first embodiment, the inlet valve 10 of the second embodiment can
  • the cavity 111 is omitted.
  • the cushion airbag assembly designed by the present invention prevents slow gas leakage through a compact intake valve, thereby effectively preventing air leakage of the cushion airbag device, furthermore, it does not need to be inflated frequently, and is easy to use.
  • Cushion airbag pads can be made by plane pressing, and the materials used for single-sided and double-sided convex airbags are mainly TPU, elastic cloth, TPR glue, hot melt, or PVC.
  • TPU with TPR glue, pasted on the elastic cloth, as the material of the upper surface.
  • the other is TPU glued with TPR glue, pasted with elastic cloth, TPR glue passed again, and then a layer of TPU is pasted.
  • TPU or TPU glue with TPR glue to bond non-elastic materials or fabrics.
  • TPU and fabric The advantage of using TPU and fabric is that it is elastic.
  • a massage cushion is inflated to a saturation by the air pump.
  • the airbag cushion will not grow or become high all the time, and will be pulled by the fabric, such as only TPU without fabric.
  • the airbag cushion can get bigger and bigger, get tired or even burst.
  • the present invention can be used on all cushioning airbag pads, such as shoulder strap shoulder pads, home cushions, waist pads, mattresses, medical mattresses, automobile seat belts, insoles, motorcycle pads, bicycle pads , mouse pads, hemorrhoid pads, knee pads, helmet pads, bulletproof vest pads, etc.
  • the present invention provides cushioning for the stress-bearing parts through the way of air intake on one side and air outlet on the other, which conforms to the principle of force, and can generate buffering effect through other flows, which has the effect of reducing people's pressure and provides a new buffering method .
  • the direction of the airflow can be well controlled, which facilitates the realization of the cushioning effect.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • General Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Textile Engineering (AREA)
  • Nursing (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Air Bags (AREA)

Abstract

一种进气阀(10),其安装于缓冲气囊装置(200),进气阀(10)依次形成有进气孔(134)、通气孔(133)以及出气孔(112),进气孔(134)的一侧与通气孔(133)连通地连接在一起,并且另一侧与外部连通,出气孔(112)与缓冲气囊装置(200)、进气孔(134)和通气孔(133)连通设置,进气阀(10)包括滚珠(12),滚珠(12)活动地收容于通气孔(133)内,当缓冲气囊装置(200)被按压处于压缩状态时,在气压的作用下,滚珠(12)在通气孔(133)朝向进气孔(134)移动且堵住进气孔(134),使得进气孔(134)处于封闭状态;当缓冲气囊装置(200)被释放且从压缩状态变为释放状态时,在外部与缓冲气囊装置(200)内部之间的压差的作用下,滚珠(12)在通气孔(133)朝向出气孔(112)移动且开通进气孔(134),使得进气孔(134)从封闭状态变为通气状态。还提供一种缓冲气囊装置(200)。

Description

进气阀以及具有进气阀的缓冲气囊装置
本申请要求于2021年11月11日提交中国专利局,申请号为202111331587.0,发明的名称为“一种缓冲气囊垫”和申请号为202122753793.2,实用新型的名称为“一种缓冲气囊垫”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本发明属于生活用具领域,特别涉及充气的缓冲气囊装置。
背景技术
日常生活中,常常会用到肩带类背包、腰包、肩包、臂包等用于家居、汽车、医疗、运动等包类制品,传统的包类制品往往只注重其装载的功能性,设计或购买时更多考虑的是背包有多少个袋子、能装多少东西或者是外观好不好看等等,却很少去顾及人们使用背包时的舒适性。在背包的使用过程中,重量一般都集中在人体的肩部、腰部、颈部或手臂。但是在使用过程中,运动中的人会产生微幅震动,背包的背带会对接触部位产生冲撞力及摩擦力。尤其当人剧烈运动时,此冲撞力和摩擦力会产生相当强大的负面效果。当装的物品较多或者长时间使用的时候,这些部位因长期受压使得局部血液流通不畅,带来疼痛感,且接触的部位都密不透风,容易产生汗水且不能有效散热,使人感到极大的不适,影响皮肤健康,留下健康隐患,因此,具有缓冲作用的气囊垫很受欢迎。这种气囊垫具有相互连通的多个气囊和进气口,外部气体经由进气口进入到气囊内。
然而,上述气囊垫有一个缺陷,将气体进入到气囊垫的气囊内之后一部分气体慢慢地通过进气口泄漏到外部,因此,整体气囊垫出现了慢漏气的现象,导致用户使用了一段时间垫体出现气囊内的气体不足的情况,还要再次进行充气,从而导致使用不方便。
发明内容
为解决上述问题,本发明提供一种防止漏气的缓冲气囊装置。
为实现上述目的,本发明的技术方案如下:
一种进气阀,其安装于缓冲气囊装置,所述进气阀依次形成有进气孔、通气孔以及出气孔,所述进气孔的一侧与所述通气孔连通地连接在一起,并且另一侧与外部连通,所述出气孔与所述缓冲气囊装置、所述进气孔和所述通气孔连通设置,所述进气阀包括滚珠,所述滚珠活动地收容于所述通气孔内,当所述缓冲气囊装置被按压处于压缩状态时,在气压的作用下,所述滚珠在所述通气孔朝向所述进气孔移动且堵住所述进气孔,使得所述进气孔处于封闭状态,从而防止所述缓冲气囊装置内的气体从所述进气孔漏气;当所述缓冲气囊装置被释放且从压缩状态变为释放状态时,在外部与所述缓冲气囊装置内部之间的压差的作用下,所述滚珠在所述通气孔朝向所述出气孔移动且开通所述进气孔,使得所述进气孔从封闭状态变为通气状态,从而外部气体经由所述进气孔、所述通气孔和所述出气孔进入所述缓冲气囊装置内。
进一步,远离所述进气孔的所述通气孔的直径大于所述滚珠的直径,而所述进气孔的直径小于所述滚珠的直径,使所述滚珠能够堵住所述进气孔,从而能够防止所述缓冲气囊装置内气体经由所述进气孔漏气。
进一步,所述出气孔的长度大于所述滚珠的直径,从而防止所述滚珠堵住所述出气孔,所述出气孔的宽度小于所述滚珠的直径,从而防止所述滚珠从所述出气孔掉出来。
一种缓冲气囊装置,其包括进气气囊和多个气囊,所述进气气囊的一侧与所述多个气囊相连通,且所述进气气囊的另一侧具有进气口,所述缓冲气囊装置还包括进气阀,所述进气阀安装于所述进气口,所述进气阀依次形成有进气孔、通气孔以及出气孔,所述进气孔的一侧与所述通气孔连通地连接在一起,并且另一侧与外部连通,所述出气孔靠近所述进气气囊设置,并且与所述进气气囊、所述进气孔和所述通气孔连通设置,所述进气阀包括滚珠,所述滚珠活动地收容于所述通气孔内,当所述进气气囊被按压处于压缩状态时,在气压的作用下,所述滚珠在所述通气孔朝向所述进气孔移动且堵住所述进气孔,使得所述进气孔处于封闭状态,从而防止所述进气气囊内的气体从所述进气孔漏气;当所述进气气囊释放且从压缩状态变为释放状态时,在压差的作用下,所述滚珠在所述通气孔朝向所述出气孔移动且开通所述进气孔,使得所述进气孔从封闭状态变为通气状态,从而外部气体经由所述进气孔、所述通气孔和所述出气孔进入所述进气气囊内。
进一步,远离所述进气孔的所述通气孔的直径大于所述滚珠的直径,而所述进气孔的直径小于所述滚珠的直径,使所述滚珠能够堵住所述进气孔,从而能够防止所述进气气囊内气体经由所述进气孔漏气。
进一步,所述出气孔的长度大于所述滚珠的直径,从而防止所述滚珠堵住所述出气孔,所述出气孔的宽度小于所述滚珠的直径,从而防止所述滚珠从所述出气孔掉出来。
进一步,所述进气阀还包括有出气件及进气件,所述出气件固定安装于所述进气口,并所述出气孔开设在所述出气件,所述进气件卡入于所述出气件,并且所述进气孔和所述通气孔依次形成在所述进气件,所述滚珠活动地安装于所述出气件和所述进气件之间。
进一步,所述进气件包括安装部和进气部,所述安装部卡入于所述出气件内,并且所述进气孔贯通开设于所述安装部,所述进气部从所述安装部一侧突出设置,并且贯通开设有所述通气孔。
进一步,所述安装孔具有导向斜面,所述安装部的侧壁形成有斜面,所述斜面沿着所述导向斜面滑入所述出气件内。
进一步,所述出气件内部具有与所述安装孔和所述出气孔连通的腔体,在所述腔体与所述安装孔连接处具有一向内凸出的内缘,在所述进气部和所述安装部相连接处,所述安装部突设有卡合凸起,在所述腔体内,所述卡合凸起与所述内缘相卡合,使得防止所述进气件的所述安装部经由所述安装孔从所述出气件的所述腔体中脱离。
与现有技术相比,本发明所设计的缓冲气囊组件通过简单的单向进气件来实现防止气体慢漏的情况,从而有效地防止缓冲气囊装置的漏气,进而无需经常充气,使用方便。
附图说明
图1为本发明涉及的第一实施方式的缓冲气囊装置的示意图。
图2为本发明涉及的第一实施方式的缓冲气囊装置的立体图。
图3为本发明涉及的第一实施方式的缓冲气囊装置的单向进气件的示意图。
图4为本发明涉及的第一实施方式的缓冲气囊装置的进气阀的分解分解图。
图5为本发明涉及的第一实施方式的缓冲气囊装置的进气阀的分解截面图。
图6为本发明涉及的第一实施方式的缓冲气囊装置的进气阀的出气面的示意图。
图7为本发明涉及的第二实施方式的缓冲气囊装置的进气阀的示意截面图。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白,以下结合附图及实施例,对本发明进行进一步详细说明。应当理解,此处所描述的具体实施例仅仅用以解释本发明,并不用于限定本发明。
图1、图2是本发明的第一实施方式的缓冲气囊装置200,其包括本体201和设置在本体201的缓冲气囊组件100。
本体201包括通过多个气道203相连通的多个气囊205,多个气囊205中一个气囊205通过一个气道203与缓冲气囊组件100相连通。
缓冲气囊组件100包括进气部件10,所述进气部件10通过多个气道203与多个气囊205相连通地连接。所述进气部件10具有第一气囊2(进气气囊)、第二气囊4、第一气道3、第三气囊8以及弹性体21。
第一气囊2具有进气作用,且在第一气囊2的一侧具有进气口1,并且第一气囊2另一侧通过第一气道3与第二气囊4相连通,从而气体从第一气囊2经由第一气道3进入到第二气囊4。
第二气囊4通过多个气道203与多个气囊205相连通。第一气囊2和第二气囊4是串接的结构形式,使得气体的流动是向着一个方向,以便于实现缓冲作用。
第三气囊8通过一个气道203与本体201的一个气囊205相连通,并且第三气囊8具有出气口5,出气口5用于排除坐垫200中的气体。本实施方式中,第三气囊8是末端的气囊,并且与第一气囊2相邻设置并且相连通,从而整体坐垫200的多个气囊结构紧凑地设置,进而达到缓冲效果。可以理解,第三气囊8的位置根据实际需求设置即可。
弹性体21设置在第一气囊2内,能够支撑第一气囊2弹起,以使气体充满于第一气囊2,用于能够对第一气囊2进行进气和出气。可以理解,弹性体为海绵体、塑胶体、弹簧、橡胶、硅胶的任意一种,只要具有弹性的部件即可。
通常情况下,弹性体21仅设置在第一气囊2内,但是根据实际需求第二气囊4也可以设置弹性体41。
使用时无需任何工具只要挤压或者按压第一气囊2即可。挤压或者按压第一气囊2时,第一气囊2内的弹性体21会压缩,解除挤压或者按压后,第一气囊2被释放,则在弹性体21弹性复位作用下,弹性体21支撑第一气囊2复位, 此时在压差的作用下,气体经由进气口1被吸入到第一气囊2内,并且经由第一气道3进入到第二气囊4以及多个气囊205,从而使气体充满整个缓冲气囊装置200。由此在遇到压力的时候,缓冲气囊装置200能够被压缩,从而达到缓冲的效果。
进一步参照图3,缓冲气囊组件100还可以包括单向进气件6,单向进气件6设置在第一气囊2、第二气囊4以及第一气道3内,以能够使第一气囊2内的气体单向进气到第二气囊4内。单向进气件6包括上片61和下片62。上片61的侧缘611和下片62的侧缘621通过高周波电压而贴合在一起,使单向进气件6的结构是上片61和下片62的两端开放且两侧封闭并两端与中间部分相连通的结构。单向进气件6两端中的其中一端即第一端分别通过高周波电压与第一气囊2内壁和第一气道3贴合在一起,从而单向进气件6的第一端是始终敞开开口的状态。单向进气件6两端中的另一端即第二端和单向进气件6的中间部分位于第二气囊4内。本第一实施方式中,由于上片61和下片62均是塑料片,整体平整,单向进气件6的中间部分和第二端处的上片61和下片62相互接触时能够具有吸附作用,因此起到能够封闭气道的作用。
使用坐垫缓冲气囊装置200时,挤压或者按压第一气囊2,此时第一气囊2内的弹性体21会压缩,第一气囊2内的气体经由开口状态的单向进气件6的第一端进入到单向进气件6的中间部分,此时相互接触在一起的单向进气件6的中间部分的上片61和下片62被气体的压力撑开而开通通道,并且此时单向进气件6的第二端也被气体的压力撑开,从而气体从单向进气件6的通道和第二端进入到第二气囊4,之后再通过多个气道203进入到多个气囊205,进而使气体充满整个坐垫200。当解除挤压或者按压后,释放第一气囊2,则在弹性体21弹性复位作用下,第一气囊2弹起复位,此时单向进气件6的中间部分和第二端部处于相互接触在一起的状态即封闭气道,并且单向进气件6的第二端也处于闭合状态,从而防止第二气囊4的气体倒流到第一气囊2,进而实现了单向进气,也有效地防止漏气。
进一步参考图4~图6,缓冲气囊组件100还可以包括进气阀10,进气阀10安装于进气口1。本实施方式中,进气阀10是单向进气阀,使得气体从进气口1只能进气不能出气。
进气阀10包括有出气件11、滚珠12及进气件13。出气件11安装于进气口1,并与第一气囊2连通,进气件13卡入于出气件11,并且与出气件11连通,滚珠12活动地安装于出气件11和进气件13之间,通过滚珠12的移动来实现单向进气。
出气件11包括相对设置的进气面117和出气面119、以及位于进气面117和出气面119的侧面118。
从进气面117朝向出气面119开设有安装孔114。从出气面119朝向进气面117开设有出气孔112。出气件11内部具有一腔体111,依次开设有安装孔114、腔体111、出气孔112,并且安装孔114、腔体111、出气孔112相连通设置。
安装孔114呈圆锥状,并且安装孔114的直径越靠近腔体111越小,也就是说安装孔114中的靠近进气面117的直径大于靠近腔体111的直径。具体而言,从进气面117朝向出气面119凹陷开设。安装孔114具有导向斜面1141,导向斜面1141从进气面117朝向出气面119倾斜,用于导向进气件13的一部分滑入到出气件11的腔体111内。在腔体111的内部,由于安装孔114靠近出气孔112的直径小于腔体111的直径,在腔体111与安装孔114连接处具有一向内凸出的内缘113,所述内缘113用于卡合进气件13。
出气孔112呈长条状的开口,出气孔112的开口长度大于滚珠12的直径,而出气孔112的开口宽度小于滚珠12的直径,因此,滚珠12不会从出气孔112掉出来,并且也不会完全封闭出气孔112,从而滚珠12不阻碍出气孔112的出气功能。本实施方式中,出气孔112是一字形的孔。可以理解,出气孔112的形状也可以是椭圆状、矩形状等,只要滚珠12不完全堵住出气孔112即可。
进气件13包括安装部131和进气部132。安装部131卡入于腔体111内, 安装部131呈圆锥状。安装部131具有一呈漏斗状的通气孔133。通气孔133从安装部131远离进气部132的一侧凹陷开设,并且用于容纳滚珠12。安装部131形状与安装孔114形状相匹配。安装部131的侧壁形成有斜面1311,该斜面1311从安装部131远离进气部132的一侧朝向进气部132逐渐倾斜,安装部131的直径越靠近进气部132越变大。斜面1311沿着导向斜面1141滑入腔体111内,从而便于将进气件13的安装部131安装于腔体111内。安装部131收容于腔体111时,滚珠12位于安装部131的通气孔133与出气件11的出气面119之间,使滚珠12能够在通气孔133内活动地滚动,又不能脱离通气孔133。滚珠12呈圆球状。可以理解,滚珠12的形状可以根据实际需求设计即可。
圆锥状的通气孔133的直径是从通气孔133的远离进气部132的一侧开始朝向进气部132逐渐变小,远离进气部132的一侧的通气孔133的直径大于滚珠12的直径,而靠近进气部132的通气孔133的直径小于滚珠12的直径,当滚珠12在通气孔133内滚动到通气孔133的中间位置时,通气孔133的内壁接触而无法往前移动,此时,滚珠12完全堵住进气部132,用于防止第一气囊2内的气体从进气阀10流出。
进气部132呈圆柱状,从安装部131一侧突出设置。进气部132贯通开设有进气孔134,依次设置有进气孔134和通气孔133并且进气孔134和通气孔133相连通,用于进气。进气孔134呈圆形孔。进气部132的直径小于安装部131的直径,因此在进气部132和安装部131相连接处,在安装部131上突设有卡合凸起1313。当安装部131安装于腔体111内时,卡合凸起1313与内缘113相卡合,使得进气件13的安装部131无法从出气件11的腔体111脱离。进气孔134的直径小于滚珠12的直径,使滚珠12能够堵住进气孔134,以防止第一气囊2内气体倒流到外部。
当缓冲气囊装置200的第一气囊2被按压处于压缩状态时,在气压的作用下,使滚珠12沿着通气孔133的倾斜的内壁朝向进气孔134移动,并且滚珠12在通气孔133的中间处的内壁接触,从而堵住封闭进气孔134,使得进气孔 134处于封闭状态,进而防止缓冲气囊装置200的第一气囊2内的气体从进气孔134漏气,实现了单向进气的效果。
当缓冲气囊装置200的第一气囊2被释放且从压缩状态变为释放状态时,在外部与缓冲气囊装置200的第一气囊2内部之间的压差的作用下,使滚珠12沿着通气孔133的倾斜的内壁朝向出气件11的出气孔112滑动,使得进气孔134从封闭状态变为通气状态,从而气体经由通气孔133、出气孔112进入到第一气囊2,使得第一气囊2充满气体。
可以理解,进气阀10结构不限定于包括出气件11及进气件13的结构,参考图7,本发明的第二实施方式的进气阀10。第二实施方式的进气阀10与第一实施方式的进气阀10的结构大致相同,不同之处在于:第二实施方式的进气阀10包括壳体14和密封地固定于壳体14的一侧的盖部16。该壳体14内部依次形成有进气孔134以及通气孔133,盖部16贯通开设有出气孔112,从而与第一实施方式的进气阀10相比第二实施方式的进气阀10可以省略腔体111。
与现有技术相比,本发明所设计的缓冲气囊组件通过结构紧凑的进气阀来实现防止气体慢漏的情况,从而有效地防止缓冲气囊装置的漏气,进而无需经常充气,使用方便。
缓冲气囊墊在制作时可以采用平面压合,单面凸起和双面凸起的气囊所使用的材料主要是TPU,弹性布,TPR胶水,热溶胶、或是PVC也可以。如TPU过TPR胶水,贴合在弹性布,作为上墊面的材料。另外一种是TPU过TPR胶水,贴合弹性布,再过一次TPR胶水,然后再贴合一层TPU。
下墊面,如果不需要气囊,就用TPU、或者TPU过TPR胶水贴合没有弹性的材料或布料。
用TPU和布料的好处,就是具有弹性。一个按摩墊,靠气泵的打气充气到一个饱和度,气囊垫不会一直增大或变高,会被布料拉住,如只有TPU没有布。气囊墊会越充越大,会疲乏或甚至爆裂。
综上所述,本发明可以用于所有缓冲气囊垫上,如肩带类肩垫,家居类坐 垫、腰垫、床垫、医疗类床垫、汽车类安全带,鞋垫、摩托车垫、脚踏车垫、鼠标垫、痔疮垫、护膝垫、头盔垫、防弹背心护垫等。
总之,本发明通过一侧进气一侧出气的方式为受力部位提供缓冲,符合受力的原则,能够通过其它的流动来产生缓冲作用,具有减轻人们压力的效果,提供了新的缓冲方式。
且结合单向进气阀的设计,能够很好地对气流方向进行控制,便于缓冲效果的实现。
以上所述,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明披露的技术范围内,根据本发明的技术方案及其发明构思加以等同替换或改变,都应涵盖在本发明的保护范围之内。

Claims (10)

  1. 一种进气阀,其安装于缓冲气囊装置,其特征在于:
    所述进气阀的壳体内依次形成有进气孔、通气孔以及出气孔,所述进气孔的一侧与所述通气孔连通地连接在一起,并且另一侧与外部连通,
    所述出气孔与所述缓冲气囊装置、所述进气孔和所述通气孔连通设置,
    所述进气阀包括滚珠,所述滚珠活动地收容于所述通气孔内,
    当所述缓冲气囊装置被按压处于压缩状态时,在气压的作用下,所述滚珠在所述通气孔朝向所述进气孔移动且堵住所述进气孔,使得所述进气孔处于封闭状态,从而防止所述缓冲气囊装置内的气体从所述进气孔漏气;
    当所述缓冲气囊装置被释放且从压缩状态变为释放状态时,在外部与所述缓冲气囊装置内部之间的压差的作用下,所述滚珠在所述通气孔朝向所述出气孔移动且开通所述进气孔,使得所述进气孔从封闭状态变为通气状态,从而外部气体经由所述进气孔、所述通气孔和所述出气孔进入所述缓冲气囊装置内。
  2. 如权利要求1所述的进气阀,其特征在于:
    远离所述进气孔的所述通气孔的直径大于所述滚珠的直径,而所述进气孔的直径小于所述滚珠的直径,使所述滚珠能够堵住所述进气孔,从而能够防止所述缓冲气囊装置内气体经由所述进气孔漏气。
  3. 如权利要求1所述的进气阀,其特征在于:所述出气孔的长度大于所述滚珠的直径,从而防止所述滚珠堵住所述出气孔,
    所述出气孔的宽度小于所述滚珠的直径,从而防止所述滚珠从所述出气孔 掉出来。
  4. 一种缓冲气囊装置,其包括进气气囊和多个气囊,所述进气气囊的一侧与所述多个气囊相连通,且所述进气气囊的另一侧具有进气口,其特征在于:
    所述缓冲气囊装置还包括进气阀,所述进气阀安装于所述进气口,
    所述进气阀的壳体依次形成有进气孔、通气孔以及出气孔,所述进气孔的一侧与所述通气孔连通地连接在一起,并且另一侧与外部连通,
    所述出气孔靠近所述进气气囊设置,并且与所述进气气囊、所述进气孔和所述通气孔连通设置,
    所述进气阀包括滚珠,所述滚珠活动地收容于所述通气孔内,
    当所述进气气囊被按压处于压缩状态时,在气压的作用下,所述滚珠在所述通气孔朝向所述进气孔移动且堵住所述进气孔,使得所述进气孔处于封闭状态,从而防止所述进气气囊内的气体从所述进气孔漏气;
    当所述进气气囊释放且从压缩状态变为释放状态时,在压差的作用下,所述滚珠在所述通气孔朝向所述出气孔移动且开通所述进气孔,使得所述进气孔从封闭状态变为通气状态,从而外部气体经由所述进气孔、所述通气孔和所述出气孔进入所述进气气囊内。
  5. 如权利要求4所述的缓冲气囊装置,其特征在于:
    远离所述进气孔的所述通气孔的直径大于所述滚珠的直径,而所述进气孔的直径小于所述滚珠的直径,使所述滚珠能够堵住所述进气孔,从而能够防止所述进气气囊内气体经由所述进气孔漏气。
  6. 如权利要求4所述的缓冲气囊装置,其特征在于:
    所述出气孔的长度大于所述滚珠的直径,从而防止所述滚珠堵住所述出气孔,
    所述出气孔的宽度小于所述滚珠的直径,从而防止所述滚珠从所述出气孔掉出来。
  7. 如权利要求4所述的缓冲气囊装置,其特征在于:所述进气阀的壳体还包括有出气件及进气件,所述出气件固定安装于所述进气口,并所述出气孔开设在所述出气件,
    所述进气件卡入于所述出气件,并且所述进气孔和所述通气孔依次形成在所述进气件,
    所述滚珠活动地安装于所述出气件和所述进气件之间。
  8. 如权利要求4所述的缓冲气囊装置,其特征在于:所述进气件包括安装部和进气部,所述安装部卡入于所述出气件内,并且所述进气孔贯通开设于所述安装部,
    所述进气部从所述安装部一侧突出设置,并且贯通开设有所述通气孔。
  9. 如权利要求8所述的缓冲气囊装置,其特征在于:
    所述安装孔具有导向斜面,所述安装部的侧壁形成有斜面,所述斜面沿着所述导向斜面滑入所述出气件内。
  10. 如权利要求9所述的缓冲气囊装置,其特征在于:所述出气件内部具有与所述安装孔和所述出气孔连通的腔体,
    在所述腔体与所述安装孔连接处具有一向内凸出的内缘,
    在所述进气部和所述安装部相连接处,所述安装部突设有卡合凸起,
    在所述腔体内,所述卡合凸起与所述内缘相卡合,使得防止所述进气件的所述安装部经由所述安装孔从所述出气件的所述腔体中脱离。
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