WO2021189199A1 - 一种气囊充气抽气装置 - Google Patents

一种气囊充气抽气装置 Download PDF

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Publication number
WO2021189199A1
WO2021189199A1 PCT/CN2020/080703 CN2020080703W WO2021189199A1 WO 2021189199 A1 WO2021189199 A1 WO 2021189199A1 CN 2020080703 W CN2020080703 W CN 2020080703W WO 2021189199 A1 WO2021189199 A1 WO 2021189199A1
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WO
WIPO (PCT)
Prior art keywords
air
valve
airbag
way valve
port
Prior art date
Application number
PCT/CN2020/080703
Other languages
English (en)
French (fr)
Inventor
孙成俊
刘众
卢坤涛
乐勇
Original Assignee
深圳市三分之一睡眠科技有限公司
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
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Application filed by 深圳市三分之一睡眠科技有限公司 filed Critical 深圳市三分之一睡眠科技有限公司
Priority to US17/913,848 priority Critical patent/US20230116236A1/en
Priority to PCT/CN2020/080703 priority patent/WO2021189199A1/zh
Priority to EP20926995.0A priority patent/EP4130542A4/en
Publication of WO2021189199A1 publication Critical patent/WO2021189199A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B41/00—Pumping installations or systems specially adapted for elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0123—Mounting arrangements characterised by number of vessels
    • F17C2205/013—Two or more vessels
    • F17C2205/0134—Two or more vessels characterised by the presence of fluid connection between vessels
    • F17C2205/0142—Two or more vessels characterised by the presence of fluid connection between vessels bundled in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0326—Valves electrically actuated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/031—Air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0128—Propulsion of the fluid with pumps or compressors
    • F17C2227/0135—Pumps

Definitions

  • the invention belongs to the technical field of inflating and air extraction devices, and in particular relates to an air bag inflating and air extraction device.
  • the airbag can be combined with an air pump, air valve, trachea, and other components to form an inflating and air extraction device. Because the airbag itself can adjust its height and hardness by inflating and deflating, so that the airbag The inflatable air extraction device also has a corresponding adjustment function. Among them, the air bag is inflated by an air pump. The inflation speed is proportional to the air flow of the air pump and the number of air pumps, and the inflation speed is constant. Therefore, the inflating and air extraction devices on the market usually use a larger air flow air pump or multiple parallel connections. Air pump, so that the airbag has a sufficiently fast inflation speed.
  • each airbag is connected to a trachea, and the trachea is connected to an air valve and an air pump.
  • the natural deflation is usually adopted, that is, the air valve connected to the airbag is opened, and the air in the airbag is discharged into the air through the air pressure difference.
  • the natural deflation of the airbag has the problems of slow deflation speed, inconstant deflation speed, and limitation of the deflation speed by the smallest caliber in the air path.
  • the air in the airbag becomes less and less.
  • the external pressure on the airbag becomes smaller and smaller, and the deflation speed of the airbag will be lower. It's getting slower and slower.
  • the air pressure in the airbag is slightly higher than the atmospheric pressure, the airbag deflation speed is very slow, and the adjustment effect of the airbag is very weak at this time.
  • the deflation speed of the airbag is not constant during natural deflation, and the air pressure in the airbag changes with the exhaust, which is very inconvenient for accurately controlling the airbag exhaust.
  • the airbag exhaust speed is affected by the smallest diameter in the air path. For example, although the exhaust holes of the airbag are made large, the exhaust speed is often still not fast. This is because the exhaust speed is also related to the smallest diameter in the air path.
  • the exhaust speed is usually determined by the inner exhaust of the air valve. Determined by the smallest caliber of qi. In order to consider the air tightness of the valve, the valve diameter is usually set to a smaller diameter.
  • the purpose of the embodiments of the present invention is to provide a device with a fast inflation and deflation speed and a constant deflation speed.
  • an airbag inflating and air extraction device which includes an airbag valve unit, an air pump unit, and an inflation and air extraction switching valve unit, the airbag air valve unit and the inflation and extraction switching valve unit Connected, the inflation and suction switching valve unit is connected to the air pump unit, wherein the air bag air valve unit includes an air bag air valve group, and each air bag air valve group includes an air bag and one or two air valves, the air pump The unit includes an air inlet and an air outlet for providing power for inflation and extraction; the inflation and extraction switching valve unit includes a first port, a second port, and a third port, the first port and the second port are respectively Connected with the air inlet and the air outlet of the air pump unit, the third port is in communication with the atmosphere or a normal pressure air source, and the inflation and pumping switching valve unit is used for switching between inflation and pumping.
  • the inflation and pumping switching valve unit includes a three-way valve or a two-way valve.
  • the number of the three-way valve is one or two.
  • the inflation and pumping switching valve unit includes a three-way valve, and the three-way valve is connected in parallel with the air bag air valve unit and the air pump unit.
  • the inflation and pumping switching valve unit includes a three-way valve, and each of the air bag air valve groups includes an air bag and two air valves, and both ends of the air bag are respectively connected to the two air valves .
  • the charging and pumping switching valve unit includes two three-way valves, and the air inlet of the air pump unit is connected to the first port of the first three-way valve, and the air outlet is connected to the first port of the second three-way valve. One port connection.
  • the two second ports of the two three-way valves are connected to the air bag air valve unit at the same time.
  • each of the air bag air valve sets includes an air bag and an air valve, one end of the air valve is connected to the air bag, and the other end is connected to the inflation and air extraction switching valve unit.
  • the embodiment of the present invention also provides a method for controlling the inflation and deflation of an airbag, which is executed by the above-mentioned airbag inflation and extraction device.
  • the number of the three-way valve when the number of the three-way valve is one, when the airbag is inflated, the end of the three-way valve connected to the air outlet of the air pump unit is closed, and when the airbag is deflated , One end of the three-way valve connected to the air inlet of the air pump unit is closed; when the number of the three-way valve is two, one is used as an intake three-way valve for inhaling gas through a port connected to the atmosphere, and one As an exhaust three-way valve, it is used to exhaust gas through a port connected to the atmosphere.
  • the air valve when the number of the three-way valve is two, when the airbag is inflated, the air valve is opened, the air pump unit is turned on, and the first port of the first three-way valve and the airbag are controlled.
  • the third port of the first three-way valve is in communication, the first port of the second three-way valve is in communication with the second port of the second three-way valve, and the air pump unit is connected from the first three-way valve
  • the third port takes in air and fills the airbag.
  • the air pump unit when the number of the three-way valve is two, when the airbag is deflated, the air valve is opened, the air pump unit is turned on, and the first port of the first three-way valve and The second port of the first three-way valve is in communication, the first port of the second three-way valve is in communication with the third port of the second three-way valve, and the air pump unit draws air from the airbag through The third port of the second three-way valve is discharged into the atmosphere.
  • the number of the three-way valve is one, when the airbag is inflated, the second air valve is opened, the first air valve is closed, the air pump unit is turned on, and the three-way valve is controlled
  • the first port of the three-way valve communicates with the second port of the three-way valve, and the air pump unit takes in air from the first port of the three-way valve and fills the airbag.
  • the air pump unit when the number of the three-way valve is one, when the airbag is deflated, the first air valve is opened, the second air valve is closed, the air pump unit is turned on, and the three-way valve is controlled.
  • the first port of the valve communicates with the third port of the three-way valve, and the air pump unit draws air from the airbag and discharges into the atmosphere through the first port of the three-way valve.
  • the embodiment of the present invention also provides a method for adjusting the gas flow between multiple airbags, which is performed by using the above-mentioned airbag inflating and inflating device, wherein the number of the three-way valve is one and the three-way valve is set to a closed state, or not provided The three-way valve.
  • the present invention has the following beneficial effects: it provides an airbag inflating and extracting device, which uses an existing air pump to reverse pump the airbag without increasing additional costs, that is, the airbag inflates and extracts.
  • a common air pump is used for air extraction.
  • the airbag deflates faster, especially when the air pressure in the airbag is not high, it can still maintain a fast deflation speed, and the airbag deflation speed is constant.
  • the air bag inflating and pumping device of the present invention shares the air pump for inflation and pumping. Compared with adding another air pump to pump the air bag, the cost and structural space are greatly saved.
  • Figure 1 is a schematic diagram of an airbag inflating and exhausting device provided by the prior art
  • Figure 2 is a schematic diagram of an airbag inflating and inflating device provided by an embodiment of the present invention
  • Fig. 3 is a schematic diagram of an airbag inflating and inflating device provided by another embodiment of the present invention.
  • Fig. 4 is a schematic diagram of an airbag inflating and inflating device provided by another embodiment of the present invention.
  • Fig. 1 is a schematic diagram of an airbag inflating and pumping device in the prior art.
  • the airbag inflating and pumping device in the prior art includes an air pump 11, several airbags 12 connected in parallel, a trachea 13, a transit airbag 14, The controller 15 and the air valve 16, wherein the air pipe 13 includes a number of discrete air tubes 131 and an integrated air tube 132, and the air valve 16 includes a number of discrete air valves 161 and an integrated air valve 162.
  • Each air bag 12 is connected to a separate air tube 131, and a number of discrete air tubes 131 are connected.
  • the air pipes 131 are connected in parallel and each discrete air pipe 131 is respectively connected to the integrated air pipe 132.
  • the integrated air pipe 132 is connected to one end of the controller 15 and the other end of the controller 15 is connected to the integrated air valve 162 for controlling the opening of the integrated air valve 162 And closed; the air pump 11 and the integral air valve 162 is connected with a relay airbag 14, the relay airbag 14 is used to store air pressure, to facilitate the regulation of the inflation and deflation of the airbag 12.
  • the air pump 11 is used to prefill the transfer airbag 14 with a sufficient amount of air, and then the air pump is turned off.
  • the integral air valve 162 When inflating, the integral air valve 162 is opened, and the corresponding airbag 12 is inflated by controlling the individual air valves 161; when deflating, the integral air valve 162 is closed, and the individual air valves 161 are opened.
  • the gas When the gas is discharged into the air, it is naturally vented.
  • the air bag inflating and air extraction device has a simple structure, and the operation of inflating and deflating each air bag is controlled by an air pump and an air valve, thereby adjusting the softness and hardness of each air bag.
  • the airbag deflation speed is not constant, and the airbag deflation speed is affected by many factors. For example, when the airbag receives a small external pressure, the airbag deflation speed is very slow.
  • an airbag inflating and pumping device which includes an airbag valve unit, an air pump unit, and an inflation and pumping switching valve unit.
  • the airbag valve unit and the inflator The air switching valve unit is connected, and the charging and pumping switching valve unit is connected with the air pump unit.
  • the air bag air valve unit includes an air bag air valve group, and the air bag air valve group includes an air bag and one or two air valves, and the air bag and the air valve are directly connected.
  • the air pump unit includes an air inlet and an air outlet, which are used to provide power for inflating and pumping the airbag.
  • the inflation and extraction switching valve unit may include a three-way valve or a plurality of two-way valves.
  • the inflation and extraction switching valve unit includes three ports: a first port, a second port, and a third port.
  • the third port is connected to the atmosphere or normal pressure.
  • the air source is connected, through the connection and disconnection of the three ports, the switch of airbag inflation and extraction is realized.
  • the inflation and suction switching valve unit may include one or two three-way valves. Wherein, when the number of airbag valve sets is multiple (including two or more), the multiple airbag valve sets are connected in parallel.
  • the air valve is used to control the connection or closing of the air bag air valve group including the air valve, thereby controlling the state of the air bag in the air bag air valve group.
  • the air bag When the air valve is opened, the air bag is inflated or evacuated, and when the air valve is closed , The airbag status remains unchanged.
  • the accuracy of the airbag adjustment effect can be improved, so as to achieve precise control of various parts of the airbag.
  • the air pump unit includes air pumps, and the number of air pumps may be one or multiple (including two or more). When the number of air pumps is multiple, multiple air pumps are connected in parallel.
  • the number of three-way valves in the inflation and extraction switching valve unit is two.
  • the airbag inflation and extraction device includes an airbag valve unit, an air pump unit, and an inflation and extraction switching valve unit.
  • the air valve unit includes a plurality of air bag air valve groups connected in parallel, each air bag air valve group is a combination of an air bag and an air valve, the air pump unit includes an air pump, and the inflation and suction switching valve unit includes two three-way valves: three Three-way valve A (first three-way valve) and three-way valve B (second three-way valve), the air bag is connected to the air valve, the three-way valve A and the three-way valve B are connected in parallel and then connected to the air valve, and the air pump is connected to the three-way Between valve A and three-way valve B, the A1 end of the three-way valve A is connected to the air inlet of the air pump, the B1 end of the three-way valve B is connected to the air outlet of the air pump, the A2 end of the three-
  • the gas valve in the present application is different from the three-way valve.
  • the gas valve is arranged in the middle of the linear pipeline to control the flow and non-flow of the gas, and does not change the gas direction.
  • the three-way valve has three ports and can change the gas direction.
  • the air pump used in the embodiments of the present application is a device that pumps air by electricity, which can be used for inflating or pumping air.
  • the air pump used in the embodiments of the present application is a device that pumps air by electricity, which can be used for inflating or pumping air.
  • the number of airbags and air valves can be increased in multiples (in groups) according to actual application requirements, and multiple airbags are connected in parallel.
  • the common ends of the three-way valve A and the three-way valve B are A1 and B1 respectively.
  • the three-way valve A is low level, the A1 terminal and the A3 terminal are connected; when the three-way valve A is high level, the A1 terminal and A2 end is connected; when the three-way valve B is low, the B1 end and B3 are connected; when the three-way valve B is high, the B1 end and B2 are connected.
  • the three ports of the three-way valve A and the three-way valve B are connected or disconnected, thereby realizing the switching of the airbag inflation and exhaustion.
  • the air valve is opened and the air pump is turned on.
  • the air pump is used for inflating, and the three-way valve A is controlled to be at a low level and the three-way valve B is at a high level.
  • A1 of the three-way valve A The end is connected with the A3 end, the B1 end and the B2 end of the three-way valve B are connected, and the air pump takes in air (ambient atmosphere) from the A3 end of the three-way valve A, and the gas is filled into the airbag.
  • the air pump is used for pumping air.
  • the three-way valve A is controlled to be high and the three-way valve B is low. At this time, the A1 end of the three-way valve A Connected to the A2 end, the B1 end of the three-way valve B is connected to the B3 end, the air pump draws air from the airbag, and the air in the airbag is discharged into the atmosphere through the B3 end of the three-way valve B.
  • the air pump When there is no need to inflate and deflate the airbag, the air pump is turned off, and the three-way valve A, the three-way valve B and the air valve are all closed.
  • the airbag inflating and pumping device of the embodiment of the present invention controls the communication state of the three-way valve A and the three-way valve B, and uses the inflation and pumping functions of the air pump to inflate or deflate the airbag.
  • the inflation and deflation speed is fast. And the speed is constant and easy to control.
  • the airbag deflation speed is fast and constant. Effect.
  • the deflation speed of the airbag depends on the pumping speed of the air pump and is not affected by external pressure and other factors, even when the air pressure in the airbag is slightly higher than the atmospheric pressure, the airbag can still maintain a faster deflation speed and deflate
  • the speed can be controlled by an air pump so as to deflate the airbag at a constant speed.
  • Fig. 3 is an airbag inflation and extraction device provided by another embodiment of the present invention.
  • the airbag inflator and air extraction device includes an airbag valve unit, an air pump unit, and an inflation and extraction switching valve unit.
  • the airbag valve unit includes a plurality of airbag valve groups connected in parallel, and each airbag valve The group is a combination of an air bag and two air valves, that is, an air bag is connected between air valve 1 (first air valve) and air valve 2 (second air valve);
  • the air pump unit includes an air pump, and a switching valve for inflation and extraction.
  • the unit includes a three-way valve, which is connected in parallel with the air bag and the air pump.
  • the 2-port of the three-way valve is connected in parallel to one end of the air valve 1 and the air inlet of the air pump, and the 3-port of the three-way valve is connected in parallel to the air valve 2
  • the air bag is connected between one end of the air pump and the air outlet of the air pump, the other end of the air valve 1 and the other end of the air valve 2, and the 1 port of the three-way valve is connected to the atmosphere.
  • the common end of the three-way valve is 1 port.
  • the number of airbags and air valves 1 and 2 (a group of airbags and air valves includes one airbag and 2 air valves, as shown in Figure 3) can be multiplied according to actual application requirements. The larger the number, the greater the number of airbags. The more precise the adjustment effect, the higher the corresponding production cost, and multiple airbags are connected in parallel.
  • the air pump When the air bag does not need to be inflated and deflated, the air pump is turned off, and the three-way valve and air valve 1 and air valve 2 are all closed.
  • the embodiment of the present invention is different in that: only one three-way valve is used.
  • the air bag valve group includes one air bag and two air valves. One air bag is connected between the two air valves. It is connected in parallel with the air bag valve unit and the air pump unit. Similar to the above-mentioned embodiment, the airbag inflating and pumping device of the embodiment of the present invention also achieves the effect of using an existing air pump to reverse the airbag, and the airbag is deflated at a fast and constant speed.
  • Fig. 4 is a schematic diagram of another application of the airbag inflating and inflating device provided by the embodiment of the invention shown in Fig. 3.
  • the airbag inflating and inflating device of the embodiment of the invention shown in Fig. 3 can also realize gas exchange between the two airbags, and the three-way valve is in a closed state at this time.
  • the airbag 1 needs to be inflated and the airbag 2 needs to be deflated
  • open the air valve 21 and the air valve 12 close the air valve 11 and the air valve 22, and turn on the air pump.
  • the air pump is used for pumping air. It flows through the air valve 21 and is filled into the airbag 1 (flows in the direction indicated by the arrow in Fig. 4).
  • the air valve 11 and the air valve 22 are opened, the air valve 21 and the air valve 12 are closed, and the air pump is turned on.
  • the air pump takes in air from the airbag 1 and fills the airbag 2.
  • the airbag in the embodiment of the present application may be square, circular, polygonal, etc., and the specific shape is not limited.
  • the airbag inflating and pumping device provided in this embodiment does not need to take in air from the air through the gas exchange between two adjacent airbags, which improves the efficiency of inflation and deflation, and the airbag adjustment effect is faster.
  • the embodiment of the present invention also provides a method for controlling the inflation and deflation of an airbag. The method is performed by using the above-mentioned airbag inflating and inflating device. When the number of three-way valves is one, when the airbag is inflated, the three One end of the vent valve connected with the air outlet of the air pump is closed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Massaging Devices (AREA)

Abstract

一种气囊充气抽气装置，包括气囊气阀单元、气泵单元和充气抽气切换阀单元，气囊气阀单元与充气抽气切换阀单元连接，充气抽气切换阀单元与气泵单元连接，其中气囊气阀单元包括气囊气阀组，气囊气阀组包括一个气囊(12)和一个或两个气阀(16)，气泵单元包括进气口和出气口，用于提供充气和抽气的动力；充气抽气切换阀单元包括三通阀。该气囊充气抽气装置利用现成的气泵，对气囊进行反抽，相比于自然放气，气囊放气速度更快、放气速度恒定，具有放气速度不受外界因素影响的优点，同时气囊充气抽气装置通过充气和抽气共用气泵，大大节省了成本和结构的空间。

Description

一种气囊充气抽气装置 技术领域
本发明属于充气抽气装置技术领域，具体涉及一种气囊充气抽气装置。
背景技术
现有技术中，气囊通过与气泵、气阀、气管等组件连接，可组合成一种充气抽气装置，由于气囊本身能够通过充放气来调节自身的高度及软硬度，从而使得包括气囊的充气抽气装置也相应地具有调节功能。其中，气囊的充气是利用气泵实现的，充气速度与气泵的气流量和气泵的数量成正比，充气速度恒定，因此市面上的充气抽气装置通常采用较大气流量的气泵或者采用多个并联的气泵，以使得气囊具有足够快的充气速度。但是对于气囊的放气，由于目前的气囊通常采用简单的结构，即每一个气囊连接一个气管，气管连接气阀、气泵，通过气阀和气泵控制对每一个气囊充放气的操作，因此气囊的放气通常采用自然放气，即打开气囊连接的气阀，通过气压差使得囊内气体排入空气。
而这种气囊自然放气存在放气速度慢、放气速度不恒定以及放气速度受气路中最小口径限制的问题。首先，当气囊受到的作用力较小时，随着放气时间的增加，气囊内的气体越来越少，此时气囊受到的外界施加压力也越来越小，气囊的放气速度也会越来越慢。尤其是当气囊内的气压略微高于大气压时，气囊的放气速度非常慢，此时气囊的调节效果非常弱。其次，自然放气时气囊的放气速度不恒定，气囊内的气压随着排气而变化，这样对于精确控制气囊排气非常不方便。最后，气囊排气速度受到气路中最小口径的影响。例如虽然气囊的排气孔做的很大，但是往往排气速度仍然不能达到较快，这是因为排气速度还与气路中的最小口径有关，排气速度通常是由气阀的内排气的最小口径所决定。而为了气阀的气密性考虑，气阀口径通常设置为较小的口径。这些技术问题影响了使用效果，需要进一步改进。
发明概述
技术问题
问题的解决方案
技术解决方案
本发明实施例的目的在于提供一种气囊充放气速度快、放气速度恒定的装置，旨在解决现有技术中气囊自然放气速度慢、放气速度不恒定以及放气速度受气路中最小口径限制的问题。
本发明实施例是这样实现的，提供一种气囊充气抽气装置，其包括气囊气阀单元、气泵单元和充气抽气切换阀单元，所述气囊气阀单元与所述充气抽气切换阀单元连接，所述充气抽气切换阀单元与所述气泵单元连接，其中所述气囊气阀单元包括气囊气阀组，每个气囊气阀组包括一个气囊和一个或两个气阀，所述气泵单元包括进气口和出气口，用于提供充气和抽气的动力；所述充气抽气切换阀单元包括第一端口、第二端口和第三端口，所述第一端口和第二端口分别与气泵单元的进气口和出气口连接，所述第三端口与大气或常压气源连通，所述充气抽气切换阀单元用于切换充气和抽气。
进一步地，充气抽气切换阀单元包括三通阀或者二通阀，包括三通阀时，所述三通阀的数量为一个或两个。
进一步地，所述充气抽气切换阀单元包括一个三通阀，所述三通阀与所述气囊气阀单元、所述气泵单元并联连接。
进一步地，所述充气抽气切换阀单元包括一个三通阀，且每个所述气囊气阀组包括一个气囊和两个气阀，所述气囊的两端分别与所述两个气阀连接。
进一步地，所述充气抽气切换阀单元中包括两个三通阀，且所述气泵单元的进气口和第一三通阀的第一端口连接，出气口与第二三通阀的第一端口连接。
进一步地，所述两个三通阀的两个第二端口同时与所述气囊气阀单元连接。
进一步地，每个所述气囊气阀组包括一个气囊和一个气阀，所述气阀的一端与所述气囊连接，另一端与所述充气抽气切换阀单元连接。
本发明实施例还提供一种控制气囊充放气的方法，该方法利用上述气囊充气抽气装置来执行。
具体地，所述三通阀的数量为一个时，当对所述气囊进行充气时，所述三通阀与所述气泵单元的出气口连接的一端关闭，当对所述气囊进行放气时，所述三 通阀与所述气泵单元的进气口连接的一端关闭；所述三通阀的数量为两个时，一个作为进气三通阀用于通过与大气连接端口吸入气体，一个作为排气三通阀用于通过与大气连接端口排出气体。
进一步地，所述三通阀的数量为两个时，当对所述气囊进行充气时，打开所述气阀，开启所述气泵单元，控制所述第一三通阀的第一端口和所述第一三通阀的第三端口连通，所述第二三通阀的第一端口和所述第二三通阀的第二端口连通，所述气泵单元从所述第一三通阀的第三端口进气，充入所述气囊内。
进一步地，所述三通阀的数量为两个时，当对所述气囊进行放气时，打开所述气阀，开启所述气泵单元，控制所述第一三通阀的第一端口和所述第一三通阀的第二端口连通，所述第二三通阀的第一端口和所述第二三通阀的第三端口连通，所述气泵单元从所述气囊抽气，通过所述第二三通阀的第三端口排入大气。
进一步地，所述三通阀的数量为一个时，对所述气囊进行充气时，打开所述第二气阀，关闭所述第一气阀，开启所述气泵单元，控制所述三通阀的第一端口和所述三通阀的第二端口连通，所述气泵单元从所述三通阀的第一端口进气，充入所述气囊内。
进一步地，所述三通阀的数量为一个时，对所述气囊进行放气时，打开所述第一气阀，关闭所述第二气阀，开启所述气泵单元，控制所述三通阀的第一端口和所述三通阀的第三端口连通，所述气泵单元从所述气囊抽气，通过所述三通阀的第一端口排入大气。
本发明实施例还提供一种调节多个气囊之间气体流动的方法，该方法利用上述气囊充气抽气装置来执行，其中所述三通阀的数量为一个并设置为关闭状态，或者不设置所述三通阀。
与现有技术相比，本发明的有益效果为：提供了一种气囊充气抽气装置，在不增加额外成本的前提下，利用现成的气泵，对气囊进行反抽，也就是气囊的充气和抽气共用一个气泵，相比于自然放气，气囊放气速度更快，尤其是当气囊内的气压不高时，仍然可以保持很快的放气速度，并且气囊的放气速度恒定。同时本发明的气囊充气抽气装置通过充气和抽气共用气泵，相比于再增设一个 气泵对气囊进行抽气，大大节省了成本和结构的空间。
发明的有益效果
对附图的简要说明
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来说，在不付出创造性劳动的前提下，还可以根据这些附图得到其它的附图。
图1是现有技术提供的气囊充气抽气装置的示意图；
图2是本发明一个实施例提供的一种气囊充气抽气装置的示意图；
图3是本发明另一个实施例提供的一种气囊充气抽气装置的示意图；
图4是本发明又一个实施例提供的一种气囊充气抽气装置的示意图。
附图编号说明：
11——气泵，12——气囊，13——气管，14——中转气囊，15——控制器，16——气阀，131——分立气管，132——整体气管，161——分立气阀，162——整体气阀。
发明实施例
本发明的实施方式
为了使本发明要解决的技术问题、技术方案及有益效果更加清楚明白，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是现有技术中的气囊充气抽气装置的示意图，如图1所示，现有技术中的气囊充气抽气装置包括气泵11、并联连接的若干气囊12、气管13、中转气囊14、控制器15和气阀16，其中气管13包括若干个分立气管131和整体气管132，气阀16包括若干个分立气阀161和整体气阀162，每一个气囊12连接一个分立气管131，若干个分立气管131之间并联连接且每一个分立气管131分别与整体气管132相连，整体气管132连接控制器15的一端，控制器15的另一端连接整体气阀162， 用于控制整体气阀162的开启与关闭；气泵11和整体气阀162之间连接有中转气囊14，中转气囊14用于存储气压，方便对气囊12充放气的调控。
具体操作中，先通过气泵11给中转气囊14预充足量的气体，然后关闭气泵。充气时，打开整体气阀162，通过控制各分立气阀161给相应的气囊12充气；放气时，关闭整体气阀162，打开各分立气阀161，通过气压差使得相应的气囊12内的气体排入空气，即自然放气。
这种气囊充气抽气装置结构简单，通过气泵和气阀控制对每一个气囊充放气的操作，由此调节各个气囊的软硬度。但是气囊在自然放气的过程中，存在气囊放气速度不恒定的问题，而且气囊放气速度受到很多因素影响，比如当气囊受到的外界压力较小时，气囊放气速度就很慢。
为了克服现有技术中的以上问题，本发明的一个实施例提供了一种气囊充气抽气装置，其包括气囊气阀单元、气泵单元和充气抽气切换阀单元，气囊气阀单元与充气抽气切换阀单元连接，充气抽气切换阀单元与气泵单元连接。其中，气囊气阀单元包括气囊气阀组，气囊气阀组包括一个气囊和一个或两个气阀，所述气囊和所述气阀直接连接。气泵单元包括进气口和出气口，用于提供对气囊进行充气和抽气的动力。充气抽气切换阀单元可以包括三通阀或者多个二通阀，充气抽气切换阀单元包括第一端口、第二端口和第三端口这三个端口，其中第三端口与大气或常压气源连通，通过三个端口的连通与断开实现气囊充气和抽气的切换。充气抽气切换阀单元可以包括一个或者两个三通阀。其中，当气囊气阀组的数量为多个(包括两个及两个以上)时，多个气囊气阀组并联连接。气阀用于控制包括该气阀的气囊气阀组的连通或闭合，从而控制该气囊气阀组中的气囊的状态，当打开气阀时，气囊进行充气或抽气，当关闭气阀时，气囊状态保持不变。通过设置多组气囊气阀组，可以提高气囊调节效果的精度，从而实现对气囊各部位的精准控制。
其中，气泵单元包括气泵，气泵的数量可以为一个，也可以为多个(包括两个及两个以上)，当气泵的数量为多个时，多个气泵并联连接。
一个实施例中，充气抽气切换阀单元中三通阀数量为两个，如图2所示，该气囊充气抽气装置包括气囊气阀单元、气泵单元和充气抽气切换阀单元，其中气 囊气阀单元包括多个并联连接的气囊气阀组，每个气囊气阀组为一个气囊和一个气阀的组合，气泵单元包括一个气泵，充气抽气切换阀单元包括两个三通阀：三通阀A(第一三通阀)和三通阀B(第二三通阀)，气囊连接气阀，三通阀A和三通阀B并联连接后与气阀连接，气泵连接于三通阀A和三通阀B之间，其中三通阀A的A1端连接气泵的进气口，三通阀B的B1端连接气泵的出气口，三通阀A的A2端、三通阀B的B2端与气阀的一端连通，气阀的另一端连接气囊，三通阀A的A3端和三通阀B的B3端用于与大气或常压气源连通。
具体地，本申请中的气阀与三通阀不同，气阀设置于线性管道中间，控制气体的流动和不流动，不改变气体方向。三通阀有三个端口，可以改变气体方向。
本申请中的“直接连接”是指两个部件中间没有其他部件，只有管线连通。
本申请实施例中使用的气泵为一种靠电力泵气的装置，既可以用于充气，也可以用于抽气。通过充气和抽气共用一个气泵，相比于再增设一个气泵对气囊进行抽气，大大节省了成本和结构的空间。
在本实施例中，气囊和气阀的数量可以根据实际应用需求倍数地(成组地)增加，多个气囊之间并联连接。
其中，三通阀A和三通阀B的公共端分别是A1和B1，当三通阀A为低电平时，A1端和A3端连通；当三通阀A为高电平时，A1端和A2端连通；当三通阀B为低电平时，B1端和B3端连通；当三通阀B为高电平时，B1端和B2端连通。通过设置三通阀A和三通阀B的电平，使得三通阀A和三通阀B的三个端口的连通或断开，从而实现气囊充气和抽气的切换。具体的，对气囊进行充气时，打开气阀，开启气泵，此时气泵用于充气，控制三通阀A为低电平，三通阀B为高电平，此时三通阀A的A1端和A3端连通，三通阀B的B1端和B2端连通，气泵从三通阀A的A3端进气(环境大气)，气体充入气囊内。对气囊进行放气时，打开气阀，开启气泵，此时气泵用于抽气，控制三通阀A为高电平，三通阀B为低电平，此时三通阀A的A1端和A2端连通，三通阀B的B1端和B3端连通，气泵从气囊抽气，气囊内的气体通过三通阀B的B3端排入大气。
当不需要对气囊进行充放气时，关闭气泵，三通阀A、三通阀B和气阀均关闭。
本发明实施例的气囊充气抽气装置通过控制三通阀A和三通阀B的连通状态，利用气泵的充气和抽气功能就可以对气囊进行充气或放气，充放气的速度快，而且速度恒定、便于控制。尤其是不用增加额外的气泵，仅通过改变三通阀A和三通阀B的连通状态，利用现成的用于充气的气泵对气囊进行反抽，就实现了气囊放气速度快且速度恒定的效果。由于气囊的放气速度取决于气泵的抽气速度，不受外界压力等因素的影响，因此即使在气囊内的气压略高于大气压时，气囊仍然可以保持较快的放气速度，且放气速度可以通过气泵控制从而实现以恒定速度对气囊进行放气。
图3是本发明的另一个实施例提供的一种气囊充气抽气装置，该实施例中只有一个三通阀。如图3所示，该气囊充气抽气装置包括气囊气阀单元、气泵单元和充气抽气切换阀单元，其中，气囊气阀单元包括多个并联连接的气囊气阀组，每个气囊气阀组为一个气囊和两个气阀的组合，也就是一个气囊连接于气阀1(第一气阀)和气阀2(第二气阀)之间；气泵单元包括一个气泵，充气抽气切换阀单元包括一个三通阀，该三通阀与气囊、气泵并联连接，其中三通阀的2端口并联连接气阀1的一端和气泵的进气口，三通阀的3端口并联连接气阀2的一端和气泵的出气口，气阀1的另一端和气阀2的另一端之间连接气囊，三通阀的1端口与大气连通。其中，三通阀的公共端是1端口。
在本实施例中，气囊和气阀1、气阀2的数量(一组气囊和气阀包括一个气囊和2个气阀，如图3)可以根据实际应用需求倍数地增加，数量越大，气囊的调节效果越精准，相应的生产成本也越高，多个气囊之间并联连接。
对气囊进行充气时，打开气阀2，关闭气阀1，开启气泵，此时气泵用于充气，控制三通阀的1端口和2端口连通，气泵从三通阀的1端口进气(环境大气)，气体从出气口经气阀2充入气囊内(如图3箭头所指方向)。对气囊进行放气时，打开气阀1，关闭气阀2，开启气泵，此时气泵用于抽气，控制三通阀的1端口和3端口连通，气泵从气囊抽气，气囊内的气体流经气阀1经出气口，通过三通阀的1端口排入大气。
当不需要对气囊进行充放气时，关闭气泵，三通阀和气阀1、气阀2均关闭。
相对于上述实施例，本发明实施例的不同点在于：只利用了一个三通阀，气囊 气阀组包括一个气囊和两个气阀，一个气囊连接于两个气阀之间，三通阀与气囊气阀单元、气泵单元并联连接。与上述实施例相同，本发明实施例的气囊充气抽气装置也实现了利用现成的气泵对气囊进行反抽，气囊放气速度快且速度恒定的效果。
图4是图3所示的发明实施例提供的一种气囊充气抽气装置的另一种应用的示意图。如图4所示，图3所示的发明实施例的气囊充气抽气装置还可以实现两个气囊之间的气体交换，此时三通阀处于关闭状态。当气囊1需要充气、气囊2需要放气时，打开气阀21和气阀12，关闭气阀11和气阀22，开启气泵，此时气泵用于抽气，气泵从气囊2进气，经出气口流经气阀21，充入气囊1内(沿图4中箭头所指方向流动)。当气囊1需要放气、气囊2需要充气时，打开气阀11和气阀22，关闭气阀21和气阀12，开启气泵，气泵从气囊1进气，充入气囊2内。
具体的，本申请实施例中的气囊可以为方形、圆形、多边形等，具体形状不受限制。
本实施例提供的气囊充气抽气装置通过两个相邻气囊之间的气体交换，无需从大气中进气，提高了充放气的效率，气囊调节效果更快速。本发明实施例还提供一种控制气囊充放气的方法，该方法利用上述气囊充气抽气装置来执行，其中，三通阀数量为一个时，当对所述气囊进行充气时，所述三通阀与气泵出气口连接一端关闭，当对所述气囊进行放气时，所述三通阀与气泵进气口连接一端关闭；三通阀数量为两个时，一个作为进气三通阀用于通过与大气连接端口吸入气体，一个作为排气三通阀用于通过与大气连接端口排出气体。具体调控细节参考上面结构部分的描述。
以上以三通阀组成的充气抽气切换阀单元为实施例描述了本发明的技术方案，应理解，上述由三通阀组成的充气抽气切换阀单元可以替换为全部为二通阀组成的具有同样功能的充气抽气切换阀单元。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种气囊充气抽气装置，包括气囊气阀单元、气泵单元和充气抽气切换阀单元，所述气囊气阀单元与所述充气抽气切换阀单元连接，所述充气抽气切换阀单元与所述气泵单元连接，其中所述气囊气阀单元包括气囊气阀组，每个所述气囊气阀组包括一个气囊和一个或两个气阀，所述气泵单元包括进气口和出气口；所述充气抽气切换阀单元包括第一端口、第二端口和第三端口，所述第一端口和第二端口分别与气泵单元的进气口和出气口连接，所述第三端口与大气或常压气源连通，所述充气抽气切换阀单元用于切换充气和抽气。
  2. 如权利要求1所述的气囊充气抽气装置，其特征在于，所述充气抽气切换阀单元包括三通阀或者二通阀，包括三通阀时，所述三通阀的数量为一个或两个。
  3. 如权利要求2所述的气囊充气抽气装置，其特征在于，所述充气抽气切换阀单元包括一个三通阀，所述三通阀与所述气囊气阀单元、所述气泵单元并联连接。
  4. 如权利要求2所述的气囊充气抽气装置，其特征在于，所述充气抽气切换阀单元包括一个三通阀，且每个所述气囊气阀组包括一个气囊和两个气阀，所述气囊的两端分别与所述两个气阀连接。
  5. 如权利要求2所述的气囊充气抽气装置，其特征在于，所述充气抽气切换阀单元中包括两个三通阀，且所述气泵单元的进气口和第一三通阀的第一端口连接，出气口与第二三通阀的第一端口连接。
  6. 如权利要求5所述的气囊充气抽气装置，其特征在于，所述两个三通阀的两个第二端口同时与所述气囊气阀单元连接。
  7. 如权利要求5所述的气囊充气抽气装置，其特征在于，每个所述气囊气阀组包括一个气囊和一个气阀，所述气阀的一端与所述气囊连接，另一端与所述充气抽气切换阀单元连接。
  8. 一种控制气囊充放气的方法，所述方法利用如权利要求1-7中任一项所述的气囊充气抽气装置来执行。
  9. 如权利要求8所述的方法，其特征在于，所述充气抽气切换阀单元包括一个三通阀，当对所述气囊进行充气时，所述三通阀与所述气泵单元的出气口连接的一端关闭，当对所述气囊进行放气时，所述三通阀与所述气泵单元的进气口连接的一端关闭；所述三通阀数量为两个时，一个作为进气三通阀用于通过与大气连接端口吸入气体，一个作为排气三通阀用于通过与大气连接端口排出气体。
  10. 如权利要求8所述的方法，其特征在于，所述充气抽气切换阀单元包括两个三通阀，当对所述气囊进行充气时，打开所述气阀，开启所述气泵单元，控制所述第一三通阀的第一端口和所述第一三通阀的第三端口连通，所述第二三通阀的第一端口和所述第二三通阀的第二端口连通，所述气泵单元从所述第一三通阀的第三端口进气，充入所述气囊内；
    当对所述气囊进行放气时，打开所述气阀，开启所述气泵单元，控制所述第一三通阀的第一端口和所述第一三通阀的第二端口连通，所述第二三通阀的第一端口和所述第二三通阀的第三端口连通，所述气泵单元从所述气囊抽气，通过所述第二三通阀的第三端口排入大气。
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5938208A (en) * 1994-12-30 1999-08-17 Kokusan Parts Industry Co., Ltd. Separate plate placed between adjacent valve bodies in a control valve unit of an automatic transmission
CN204467629U (zh) * 2015-01-27 2015-07-15 杨惠仪 具有气囊按摩功能的颈枕
CN204520089U (zh) * 2015-01-27 2015-08-05 杨惠仪 具有自动充气放气功能的颈枕
CN106691049A (zh) * 2017-01-05 2017-05-24 殷隽 智能枕头及智能枕头的控制方法
WO2018217594A1 (en) * 2017-05-22 2018-11-29 Onboard Dynamics, Inc. Flexible supply gas routing for gas compressors

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4915124A (en) * 1988-03-30 1990-04-10 Jasco Products, Inc. Bladder pressure control system and method
US5967608A (en) * 1998-05-06 1999-10-19 Bytec Incorporated Pneumatic lumbar adjustment system
CN106473521B (zh) * 2016-09-30 2018-09-11 美的集团股份有限公司 智能枕头
WO2018214045A1 (zh) * 2017-05-24 2018-11-29 深圳市兴汇科技有限公司 空气波充气与放气两用的气路装置及控制方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5938208A (en) * 1994-12-30 1999-08-17 Kokusan Parts Industry Co., Ltd. Separate plate placed between adjacent valve bodies in a control valve unit of an automatic transmission
CN204467629U (zh) * 2015-01-27 2015-07-15 杨惠仪 具有气囊按摩功能的颈枕
CN204520089U (zh) * 2015-01-27 2015-08-05 杨惠仪 具有自动充气放气功能的颈枕
CN106691049A (zh) * 2017-01-05 2017-05-24 殷隽 智能枕头及智能枕头的控制方法
WO2018217594A1 (en) * 2017-05-22 2018-11-29 Onboard Dynamics, Inc. Flexible supply gas routing for gas compressors

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4130542A4 *

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