CN211853517U - Air bag inflating and air extracting device - Google Patents
Air bag inflating and air extracting device Download PDFInfo
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- CN211853517U CN211853517U CN202020376375.9U CN202020376375U CN211853517U CN 211853517 U CN211853517 U CN 211853517U CN 202020376375 U CN202020376375 U CN 202020376375U CN 211853517 U CN211853517 U CN 211853517U
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Abstract
The utility model is suitable for an aerify air exhaust device technical field, provide an air bag aerifys air exhaust device, include gasbag pneumatic valve unit, air pump unit and aerify the diverter valve unit of bleeding, gasbag pneumatic valve unit with aerify the diverter valve unit connection of bleeding, aerify the diverter valve unit of bleeding and air pump unit connection. Under the prerequisite that does not increase extra cost, the utility model discloses an air pump is aerifyd to the gasbag utilizes ready-made air pump, takes out to the gasbag, compares in the natural gassing, and gasbag gassing speed is faster, gassing speed is invariable, has the advantage that gassing speed does not receive external factor to influence.
Description
Technical Field
The utility model belongs to the technical field of aerify air exhaust device, concretely relates to air exhaust device is aerifyd to gasbag.
Background
In the prior art, the air bag is connected with components such as an air pump, an air valve and an air pipe and can be combined into an inflation and air extraction device, and the height and the hardness of the air bag can be adjusted through inflation and deflation, so that the inflation and air extraction device comprising the air bag also has an adjusting function correspondingly. The air inflation of the air bag is realized by using an air pump, the air inflation speed is in direct proportion to the air flow of the air pump and the number of the air pumps, and the air inflation speed is constant, so that the air inflation and air exhaust device on the market usually adopts the air pump with larger air flow or adopts a plurality of air pumps connected in parallel, so that the air bag has sufficiently high air inflation speed. However, for the deflation of the air bag, because the current air bag usually adopts a simple structure, namely, each air bag is connected with one air pipe, the air pipe is connected with the air valve and the air pump, and the operation of inflating and deflating each air bag is controlled by the air valve and the air pump, the deflation of the air bag usually adopts natural deflation, namely, the air valve connected with the air bag is opened, and the air in the air bag is discharged into the air through the air pressure difference.
The natural deflation of the air bag has the problems of slow deflation speed, inconsistent deflation speed and the limitation of the deflation speed by the minimum caliber in the air path. Firstly, when the acting force applied to the air bag is small, the air in the air bag is less and less along with the increase of the deflation time, the external applied pressure applied to the air bag is less and less, and the deflation speed of the air bag is slower and slower. Especially when the air pressure in the air bag is slightly higher than the atmospheric pressure, the deflation speed of the air bag is very slow, and the adjusting effect of the air bag is very weak. Secondly, the deflation speed of the air bag is not constant during natural deflation, and the air pressure in the air bag changes along with the deflation, so that the accurate control of the deflation of the air bag is very inconvenient. Finally, the airbag venting speed is affected by the minimum orifice in the gas path. For example, although the vent holes of the air bag are made large, the vent speed is still not fast because the vent speed is also related to the minimum aperture in the air path, which is usually determined by the minimum aperture of the vent hole in the air valve. The valve bore is usually set to a smaller bore for the gas tightness of the valve. These technical problems affect the use effect and further improvement is required.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the utility model is to provide a gasbag fills gassing speed fast, the invariable device of gassing speed, aim at solving among the prior art gasbag nature gassing speed slow, gassing speed is invariable and gassing speed receives the problem of minimum bore restriction in the gas circuit.
The embodiment of the utility model provides a realize like this, provide an air bag inflation and air exhaust device, it includes gasbag pneumatic valve unit, air pump unit and aerifys the diverter valve unit of bleeding, gasbag pneumatic valve unit with aerify the diverter valve unit connection of bleeding, aerify the diverter valve unit of bleeding with air pump unit connection.
Preferably, the air bag air valve unit comprises air bag air valve groups, each air bag air valve group comprises an air bag and one or two air valves, and the air pump unit comprises an air inlet and an air outlet; the air inflation and air exhaust switching valve unit comprises a first port, a second port and a third port, the first port and the second port are respectively connected with an air inlet and an air outlet of the air pump unit, the third port is communicated with an atmosphere or normal-pressure air source, and the air inflation and air exhaust switching valve unit is used for switching inflation and air exhaust.
Further, the inflation and air-extraction switching valve unit comprises a three-way valve or a two-way valve, and when the inflation and air-extraction switching valve unit comprises the three-way valve, the number of the three-way valves is one or two.
Furthermore, the inflation and air-extraction switching valve unit comprises a three-way valve, and the three-way valve is connected with the air bag air valve unit and the air pump unit in parallel.
Furthermore, the inflation and air-extraction switching valve unit comprises a three-way valve, each airbag valve group comprises an airbag and two air valves, and two ends of the airbag are respectively connected with the two air valves.
Furthermore, the inflation and air-exhaust switching valve unit comprises two three-way valves, an air inlet of the air pump unit is connected with a first port of the first three-way valve, and an air outlet of the air pump unit is connected with a first port of the second three-way valve.
Further, two second ports of the two three-way valves are simultaneously connected with the airbag air valve unit.
Furthermore, each air bag valve group comprises an air bag and an air valve, one end of the air valve is connected with the air bag, and the other end of the air valve is connected with the inflation and air-extraction switching valve unit.
The embodiment of the utility model also provides a method for controlling the air inflation and deflation of the air bag, which is implemented by using the air inflation and deflation device of the air bag, wherein when the number of the three-way valves is one, when the air bag is inflated, one end of the three-way valve connected with the air outlet of the air pump unit is closed, and when the air bag is deflated, one end of the three-way valve connected with the air inlet of the air pump unit is closed; when the number of the three-way valves is two, one is used as an air inlet three-way valve for sucking air through the port connected with the atmosphere, and the other is used as an air outlet three-way valve for discharging air through the port connected with the atmosphere.
Further, when the number of the three-way valves is two, when the airbag is inflated, the air valve is opened, the air pump unit is started, the first port of the first three-way valve is controlled to be communicated with the third port of the first three-way valve, the first port of the second three-way valve is controlled to be communicated with the second port of the second three-way valve, and the air pump unit is used for feeding air from the third port of the first three-way valve and inflating the air pump unit into the airbag.
Further, when the number of the three-way valves is two, when the air bag is deflated, the air valve is opened, the air pump unit is started, the first port of the first three-way valve is controlled to be communicated with the second port of the first three-way valve, the first port of the second three-way valve is controlled to be communicated with the third port of the second three-way valve, the air pump unit extracts air from the air bag, and the air is discharged into the atmosphere through the third port of the second three-way valve.
Further, when the number of the three-way valves is one, when the airbag is inflated, the second air valve is opened, the first air valve is closed, the air pump unit is started, the first port of the three-way valve is controlled to be communicated with the second port of the three-way valve, and the air pump unit is used for feeding air from the first port of the three-way valve and inflating the air into the airbag.
Further, when the number of the three-way valves is one, and when the air bag is deflated, the first air valve is opened, the second air valve is closed, the air pump unit is started, the first port of the three-way valve is controlled to be communicated with the third port of the three-way valve, the air pump unit extracts air from the air bag, and the air is discharged into the atmosphere through the first port of the three-way valve.
Compared with the prior art, the beneficial effects of the utility model are that: the air bag inflation and air exhaust device is provided, on the premise of not increasing extra cost, the air bag is reversely pumped by using the existing air pump, namely the air bag is inflated and exhausted by using one air pump, compared with natural air exhaust, the air bag air exhaust speed is higher, especially when the air pressure in the air bag is not high, the air bag can still keep the fast air exhaust speed, and the air bag air exhaust speed is constant. Simultaneously the utility model discloses an air pump is aerifyd to gasbag air exhaust device compares in adding an air pump again and bleeds to the gasbag through aerifing and bleeding sharing air pump, has saved the space of cost and structure greatly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a prior art airbag inflation and deflation apparatus;
FIG. 2 is a schematic view of an airbag inflation and evacuation device according to an embodiment of the present invention;
FIG. 3 is a schematic view of an airbag inflation and evacuation device according to another embodiment of the present invention;
FIG. 4 is a schematic view of an airbag inflation/deflation apparatus according to another embodiment of the present invention.
Description of the figure numbering:
11-an air pump, 12-an air bag, 13-an air pipe, 14-a transit air bag, 15-a controller, 16-an air valve, 131-a separate air pipe, 132-an integral air pipe, 161-a separate air valve and 162-an integral air valve.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to further explain the present invention in detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Fig. 1 is a schematic diagram of a prior art airbag inflation and air extraction device, as shown in fig. 1, the prior art airbag inflation and air extraction device includes an air pump 11, a plurality of airbags 12 connected in parallel, an air pipe 13, a transfer airbag 14, a controller 15 and an air valve 16, where the air pipe 13 includes a plurality of discrete air pipes 131 and an integral air pipe 132, the air valve 16 includes a plurality of discrete air valves 161 and an integral air valve 162, each airbag 12 is connected to one discrete air pipe 131, the plurality of discrete air pipes 131 are connected in parallel and each discrete air pipe 131 is connected to the integral air pipe 132, the integral air pipe 132 is connected to one end of the controller 15, and the other end of the controller 15 is connected to the integral air valve 162 for controlling the opening and closing of the integral air valve 162; the transfer air bag 14 is connected between the air pump 11 and the integral air valve 162, and the transfer air bag 14 is used for storing air pressure, so that the inflation and deflation of the air bag 12 can be conveniently regulated.
In a specific operation, the transfer airbag 14 is pre-charged with a sufficient amount of air by the air pump 11, and then the air pump is turned off. When in inflation, the integral air valve 162 is opened, and the corresponding air bag 12 is inflated by controlling each separate air valve 161; when the air is deflated, the integral air valve 162 is closed, each separate air valve 161 is opened, and the air in the corresponding air bag 12 is discharged into the air through the air pressure difference, namely, the air is naturally deflated.
The air bag inflation and air exhaust device is simple in structure, and the operation of inflation and deflation of each air bag is controlled through the air pump and the air valve, so that the hardness of each air bag is adjusted. However, in the process of naturally deflating the air bag, the deflating speed of the air bag is not constant, and the deflating speed of the air bag is influenced by a plurality of factors, for example, when the external pressure of the air bag is small, the deflating speed of the air bag is slow.
In order to overcome the above problem among the prior art, an embodiment of the utility model provides an air exhaust device is aerifyd to gasbag, it includes gasbag pneumatic valve unit, air pump unit and aerifys the diverter valve unit of bleeding, gasbag pneumatic valve unit with aerify the diverter valve unit connection of bleeding, aerify the diverter valve unit of bleeding and be connected with air pump unit. The air bag air valve unit comprises an air bag air valve group, the air bag air valve group comprises an air bag and one or two air valves, and the air bag is directly connected with the air valves. The air pump unit comprises an air inlet and an air outlet and is used for providing power for inflating and exhausting the air bag. The air inflation and air exhaust switching valve unit comprises a three-way valve, the three-way valve comprises a first port, a second port and a third port, the third port is communicated with an atmosphere or normal-pressure air source, and the switching of air bag inflation and air exhaust is realized through the communication and disconnection of the three ports of the three-way valve. When the number of the airbag air valve groups is multiple (including two or more), the airbag air valve groups are connected in parallel. The air valve is used for controlling the communication or closing of an air bag valve group comprising the air valve so as to control the state of an air bag in the air bag valve group, when the air valve is opened, the air bag is inflated or exhausted, and when the air valve is closed, the state of the air bag is kept unchanged. Through setting up multiunit gasbag valves, can improve the precision of gasbag regulation effect to realize the accurate control to each position of gasbag.
The air pump unit comprises air pumps, the number of the air pumps can be one, or can be multiple (including two or more), and when the number of the air pumps is multiple, the air pumps are connected in parallel.
In one embodiment, the number of the three-way valves is two, as shown in fig. 2, the airbag inflation and air-bleed device includes an airbag air valve unit, an air pump unit and an inflation and air-bleed switching valve unit, wherein the airbag air valve unit includes a plurality of airbag air valve sets connected in parallel, each airbag air valve set is a combination of an airbag and an air valve, the air pump unit includes an air pump, and the inflation and air-bleed switching valve unit includes two three-way valves: the air pump comprises a three-way valve A (a first three-way valve) and a three-way valve B (a second three-way valve), an air valve is connected with the air bag, the three-way valve A and the three-way valve B are connected in parallel and then connected with the air valve, the air pump is connected between the three-way valve A and the three-way valve B, the A1 end of the three-way valve A is connected with an air inlet of the air pump, the B1 end of the three-way valve B is connected with an air outlet of the air pump, the A2 end of the three-way valve A, the B2 end of the three-way valve B is communicated with one end of the.
Specifically, the pneumatic valve in this application is different from the three-way valve, and the pneumatic valve sets up in the middle of the linear pipeline, and the flow of control gas is with not flowing, does not change gaseous direction. The three-way valve has three ports and can change the direction of gas.
In this application "directly connected" means that there is no other component between the two components, only the lines are in communication.
The air pump used in the embodiment of the application is a device which pumps air by electric power, and can be used for inflating and extracting air. Through aerifing and bleeding a sharing air pump, compare in and add an air pump again and bleed to the gasbag, saved the space of cost and structure greatly.
In this embodiment, the number of the air bags and the air valves can be increased by multiple (in groups) according to the actual application requirement, and the air bags are connected in parallel.
The common ends of the three-way valve A and the three-way valve B are A1 and B1 respectively, and when the three-way valve A is at a low level, the A1 end is communicated with the A3 end; when the three-way valve A is in a high level, the A1 end is communicated with the A2 end; when the three-way valve B is in a low level, the end B1 is communicated with the end B3; when the three-way valve B is at a high level, the B1 port and the B2 port communicate. The three ports of the three-way valve A and the three-way valve B are communicated or disconnected by setting the levels of the three-way valve A and the three-way valve B, so that the switching of air inflation and air suction of the air bag is realized. Specifically, when the airbag is inflated, the air valve is opened, the air pump is started, the air pump is used for inflating at the moment, the three-way valve a is controlled to be at a low level, the three-way valve B is at a high level, the end a1 of the three-way valve a is communicated with the end A3, the end B1 of the three-way valve B is communicated with the end B2, the air pump admits air (ambient atmosphere) from the end A3 of the three-way valve a, and the air is inflated into the airbag. When the air bag is deflated, the air valve is opened, the air pump is started, the air pump is used for pumping air at the moment, the control three-way valve A is at a high level, the three-way valve B is at a low level, the end A1 and the end A2 of the three-way valve A are communicated, the end B1 and the end B3 of the three-way valve B are communicated, the air pump pumps air from the air bag, and air in the air bag is discharged into the atmosphere through the end B3 of the three-way valve.
When the air bag does not need to be inflated and deflated, the air pump is closed, and the three-way valve A, the three-way valve B and the air valve are all closed.
The utility model discloses air pump air exhaust device is aerifyd to gasbag utilizes the inflation of air pump and the function of bleeding just can aerify or deflate the gasbag through control three-way valve A and three-way valve B's connected state, and it is fast to fill the speed of gassing, moreover the speed invariant, the control of being convenient for. Particularly, the air bag is reversely pumped by the existing air pump for inflating by changing the communication state of the three-way valve A and the three-way valve B without adding an additional air pump, so that the effects of high air-discharging speed and constant speed of the air bag are realized. Because the deflation speed of the air bag depends on the air pumping speed of the air pump and is not influenced by factors such as external pressure, and the like, even if the air pressure in the air bag is slightly higher than the atmospheric pressure, the air bag still can keep the faster deflation speed, and the deflation speed can be controlled by the air pump so as to realize deflation of the air bag at a constant speed.
FIG. 3 shows an alternative embodiment of the present invention, which provides an airbag inflation and evacuation device having only one three-way valve. As shown in fig. 3, the airbag inflation and air-bleed device comprises an airbag air valve unit, an air pump unit and an inflation and air-bleed switching valve unit, wherein the airbag air valve unit comprises a plurality of airbag air valve groups connected in parallel, each airbag air valve group is a combination of an airbag and two air valves, that is, an airbag is connected between an air valve 1 (a first air valve) and an air valve 2 (a second air valve); the air pump unit comprises an air pump, the air inflation and air exhaust switching valve unit comprises a three-way valve, the three-way valve is connected with the air bag and the air pump in parallel, one end of an air valve 1 and an air inlet of the air pump are connected with 2 ports of the three-way valve in parallel, one end of an air valve 2 and an air outlet of the air pump are connected with 3 ports of the three-way valve in parallel, the air bag is connected between the other end of the air valve 1 and the other end of the air valve 2, and. Wherein the common end of the three-way valve is a 1-port.
In this embodiment, the number of the air bags and the air valves 1 and 2 (a set of air bags and air valves includes one air bag and 2 air valves, as shown in fig. 3) can be increased in multiples according to the actual application requirements, the larger the number is, the more accurate the adjustment effect of the air bags is, the higher the corresponding production cost is, and a plurality of air bags are connected in parallel.
When the airbag is inflated, the air valve 2 is opened, the air valve 1 is closed, the air pump is started, the air pump is used for inflating, the port 1 and the port 2 of the three-way valve are controlled to be communicated, the air pump enters air (ambient atmosphere) from the port 1 of the three-way valve, and the air is inflated into the airbag from the air outlet through the air valve 2 (as indicated by an arrow in fig. 3). When the air bag is deflated, the air valve 1 is opened, the air valve 2 is closed, the air pump is started, the air pump is used for pumping air at the moment, the port 1 and the port 3 of the three-way valve are controlled to be communicated, the air pump pumps air from the air bag, and air in the air bag flows through the air valve 1 and is discharged into the atmosphere through the port 1 of the three-way valve.
When the air bag does not need to be inflated and deflated, the air pump is closed, and the three-way valve, the air valve 1 and the air valve 2 are closed.
For above-mentioned embodiment, the utility model discloses the difference lies in: only one three-way valve is utilized, the air bag air valve group comprises an air bag and two air valves, the air bag is connected between the two air valves, and the three-way valve is connected with the air bag air valve unit and the air pump unit in parallel. The same as the above embodiment, the utility model discloses the gasbag inflates air exhaust device and has also realized utilizing ready-made air pump to take out the gasbag in reverse, the gasbag gassing is fast and the effect of speed invariant.
Figure 4 is a schematic view of another application of the embodiment of the utility model shown in figure 3 to provide an airbag inflation and evacuation device. As shown in fig. 4, the airbag inflation/deflation device of the embodiment of the utility model shown in fig. 3 can also realize the gas exchange between the two airbags, and the three-way valve is in the closed state. When the air bag 1 needs to be inflated and the air bag 2 needs to be deflated, the air valve 21 and the air valve 12 are opened, the air valve 11 and the air valve 22 are closed, the air pump is started, the air pump is used for pumping air at the moment, and the air pump enters air from the air bag 2, flows through the air valve 21 through the air outlet and is inflated into the air bag 1 (flows along the direction indicated by the arrow in the figure 4). When the air bag 1 needs to be deflated and the air bag 2 needs to be inflated, the air valve 11 and the air valve 22 are opened, the air valve 21 and the air valve 12 are closed, the air pump is started, and the air pump enters the air bag 1 and is inflated into the air bag 2.
Specifically, the airbag in the embodiment of the present application may be square, circular, polygonal, and the like, and the specific shape is not limited.
The air bag air inflation and air exhaust device provided by the embodiment does not need to enter air from the atmosphere through air exchange between two adjacent air bags, the air inflation and air exhaust efficiency is improved, and the air bag adjusting effect is quicker. The embodiment of the utility model also provides a method for controlling the air inflation and deflation of the air bag, which is implemented by utilizing the air bag inflation and deflation device, wherein when the number of the three-way valves is one, when the air bag is inflated, one end of the three-way valve connected with the air outlet of the air pump is closed, and when the air bag is deflated, one end of the three-way valve connected with the air inlet of the air pump is closed; when the number of the three-way valves is two, one is used as an intake three-way valve for sucking gas through a port connected with the atmosphere, and the other is used as an exhaust three-way valve for exhausting gas through a port connected with the atmosphere. Specific regulatory details refer to the description of the structural section above.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The air bag inflation and air extraction device comprises an air bag air valve unit, an air pump unit and an inflation and air extraction switching valve unit, wherein the air bag air valve unit is connected with the inflation and air extraction switching valve unit, and the inflation and air extraction switching valve unit is connected with the air pump unit.
2. The airbag inflation and deflation apparatus of claim 1 wherein the airbag valve units comprise airbag valve sets, each airbag valve set comprising an airbag and one or two air valves, the air pump unit comprising an air inlet and an air outlet; the air inflation and air exhaust switching valve unit comprises a first port, a second port and a third port, the first port and the second port are respectively connected with an air inlet and an air outlet of the air pump unit, the third port is communicated with an atmosphere or normal-pressure air source, and the air inflation and air exhaust switching valve unit is used for switching inflation and air exhaust.
3. The airbag inflation and deflation apparatus of claim 1 or 2 wherein the inflation and deflation switch valve means comprises a three-way valve or a two-way valve, and when comprising three-way valves, the number of the three-way valves is one or two.
4. The airbag inflation and deflation apparatus of claim 3 wherein the inflation and deflation switch valve unit comprises a three-way valve connected in parallel with the airbag valve unit and the air pump unit.
5. The airbag inflation and deflation device of claim 3 wherein the inflation and deflation switching valve unit comprises a three-way valve, and each airbag valve set comprises an airbag and two air valves, and the two ends of the airbag are connected with the two air valves respectively.
6. The airbag inflation and deflation apparatus of claim 3 wherein the inflation and deflation switch valve unit comprises 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.
7. The airbag inflation and deflation apparatus of claim 6 wherein the two second ports of the two three-way valves are simultaneously connected to the airbag valve unit.
8. The airbag inflation and deflation apparatus of claim 6 wherein each of the airbag valve sets comprises an airbag and an air valve, wherein one end of the air valve is connected to the airbag and the other end of the air valve is connected to the inflation and deflation switching valve unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020376375.9U CN211853517U (en) | 2020-03-23 | 2020-03-23 | Air bag inflating and air extracting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020376375.9U CN211853517U (en) | 2020-03-23 | 2020-03-23 | Air bag inflating and air extracting device |
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| Publication Number | Publication Date |
|---|---|
| CN211853517U true CN211853517U (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020376375.9U Active CN211853517U (en) | 2020-03-23 | 2020-03-23 | Air bag inflating and air extracting device |
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| CN (1) | CN211853517U (en) |
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