CN204924595U - Pressure -measuring pipe air permeability gas tightness detection device - Google Patents
Pressure -measuring pipe air permeability gas tightness detection device Download PDFInfo
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- CN204924595U CN204924595U CN201520569957.8U CN201520569957U CN204924595U CN 204924595 U CN204924595 U CN 204924595U CN 201520569957 U CN201520569957 U CN 201520569957U CN 204924595 U CN204924595 U CN 204924595U
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Abstract
The utility model provides a pressure -measuring pipe air permeability gas tightness detection device, include: can outwards export gaseous the airbag, three way connection, three way connection includes first interface, second interface and third interface, one end is connected the the airbag other end is connected first interface will the gas delivery of the airbag output extremely the first breather pipe of first interface, one end is connected pressure -measuring pipe input port is connected to second interface, the other end, will the intraductal second breather pipe of gas delivery to pressure -measuring pipe of first kneck, measure the barometer of the intraductal atmospheric pressure of pressure -measuring pipe, one end is connected the barometer, the other end is connected the third breather pipe of third interface. Use the utility model provides a pressure -measuring pipe air permeability gas tightness detection device can detect out the gas tightness of pressure -measuring pipe quickly directly perceived.
Description
Technical field
The utility model relates to air-tightness detection device technical field, particularly a kind of piezometric tube aeration air-tightness detection device.
Background technology
Manometric test in wind tunnel test mainly measures the aerodynamic force and surface pressure distribution that act on model or model assembly (as the wing of in dummy vehicle etc.), and being used for provides aerodynamic characteristic data for designing aircraft.When measuring test figure, need to offer multiple pressure tap on the surface of pressure measuring model, and means measure the surface pressing parameter of each pressure tap by experiment.Can be recognized the local flow characteristic of pressure measuring model by these pressure parameters, and integration goes out total aerodynamic characteristic.
When making pressure tap, first in location, pressure measuring model surface, then on anchor point, offer the circular hole consistent with piezometric tube cross-sectional sizes.Piezometric tube one end is inserted into through the top layer of pressure measuring model in the circular hole offered, and ensures that the cross section of piezometric tube one end and circular hole are in same level, and the other end is connected with other aeration equipments.Circular hole pressure measuring model being inserted with piezometric tube defines final pressure tap.
In order to ensure the accuracy of the pressure data of the pressure tap measured, pressure tap needs high impermeability.So need to ensure that the body of piezometric tube is without damage further, ventilation is good and impermeability is extremely strong.Therefore, when manufacturing pressure measuring model, also particularly important to the piezometric tube aeration in pressure measuring model, bubble-tight detection.
Utility model content
The purpose of this utility model is to provide a kind of piezometric tube aeration air-tightness detection device, can detect to quicklook aeration and the impermeability of piezometric tube.
For achieving the above object, the utility model takes following technical scheme:
A kind of piezometric tube aeration air-tightness detection device, comprising:
Outwards can export the air bag of gas;
Three-way connection, described three-way connection comprises first interface, the second interface and the 3rd interface;
One end connects the described air bag other end and connects described first interface, the gas that described air bag exports is delivered to the first snorkel of described first interface;
One end connects described second interface, and the other end connects piezometric tube input port, the gas at described first interface place is delivered to the second snorkel in piezometric tube pipe;
Measure the rain glass of piezometric tube intraductal atmospheric pressure;
One end connects described rain glass, and the other end connects the 3rd snorkel of described 3rd interface.
Preferably, described air bag comprises:
Ambient atmos is sucked the air admission hole of described air bag inside;
By the transfer port of the gas of described air bag inside discharged to described first snorkel.
Preferably, described air bag comprises:
Be arranged on the first Non-return air valve on described air admission hole;
Be arranged on the second Non-return air valve on described transfer port.
Preferably, described second snorkel comprises:
The joint sleeve be socketed is sealed with piezometric tube input port.
Compared with prior art, the utility model comprises following advantage:
The piezometric tube aeration air-tightness detection device that the utility model provides, connects the input port of piezometric tube, the output port of piezometric tube and pressure tap is blocked simultaneously by the second snorkel, inflated piezometric tube by extruding air bag.Rain glass measures the air pressure in piezometric tube by the 3rd snorkel.The air pressure measured when rain glass is long-term and stably higher than normal pressure, then piezometric tube impermeability is good; The air pressure measured when rain glass is in certain time length internal regression to normal pressure, then piezometric tube poor air-tightness, needs to change this piezometric tube; Meanwhile, when detecting that piezometric tube impermeability is good, the aeration of piezometric tube can also be detected.Concrete, kept clear by the output port of piezometric tube and do not block, now utilize air bag to inflate in piezometric tube, if the air pressure that rain glass measures can be returned to normal pressure in certain time length, then piezometric tube aeration is good; If the air pressure that rain glass measures is long-term and stably higher than normal pressure, then piezometric tube aeration is poor, needs to change piezometric tube.The piezometric tube aeration air-tightness detection device provided by the utility model intuitively can detect aeration and the impermeability of piezometric tube rapidly.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the piezometric tube aeration air-tightness detection device that Fig. 1 provides for the utility model;
The structural representation of the air bag that Fig. 2 provides for the utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, Fig. 1 shows the structural representation of the piezometric tube aeration air-tightness detection device that the utility model provides.The utility model provides a kind of piezometric tube aeration air-tightness detection device, mainly comprises air bag 1, three-way connection 2 and rain glass 3.Three-way connection 2 has three interfaces be interconnected, and is respectively first interface 201, second interface 202 and the 3rd interface 203.
The output terminal of air bag 1 is connected with the first interface 201 on three-way connection 2 by the first snorkel 4, and the input port of tested piezometric tube is connected with the second interface 202 by the second snorkel 5, and rain glass 3 is connected with the 3rd interface 203 by the 3rd snorkel 6.
Second snorkel 5 comprises a joint sleeve 501, and the internal diameter of joint sleeve 501 equals or slightly larger than the external diameter of piezometric tube, and then joint sleeve 501 can be enclosed within the input port of piezometric tube fit sealing.
Air bag 1 a kind ofly has the charger consistent with air pump function, by constantly to extrude air bag 1 and diastole operates, realizes the gas in environment under low pressure to be delivered in hyperbaric environment.
Refer to Fig. 2, Fig. 2 shows the structure of air bag, air bag 1 mainly comprises pneumatophore 101, air admission hole 102 and transfer port 103, and when carrying out extrusion operation to pneumatophore 101, the gas of pneumatophore 101 inside inputs to the first snorkel 4 by transfer port 103; After single pressing operation terminates, due to the elastic force of pneumatophore 101 self, pneumatophore 101 can restore to the original state voluntarily.Pneumatophore 101 is restorable while, the gas in the external world is sucked into pneumatophore 101 inside by air admission hole 102 by pneumatophore 101.And the gas in inhaling air utricule 101 is transported to when next extrusion operation in the first snorkel 4.
Air admission hole 102 arranges the first Non-return air valve 104, transfer port 103 arranges the second Non-return air valve 105.
When carrying out extrusion operation to pneumatophore 101, the first Non-return air valve 104 on air admission hole 102 is closed, gas in pneumatophore 101 cannot flow into the external world, and the second Non-return air valve 105 on transfer port 103 is opened, and the gas in pneumatophore 101 is flowed in the first snorkel 4.
When pneumatophore 101 voluntarily diastole time, the first Non-return air valve 104 on air admission hole 102 is opened, ambient atmos is made to be inhaled into pneumatophore 101 inner, simultaneously, the second Non-return air valve 105 on transfer port 103 is closed, make the gas in pneumatophore 101 cannot flow in the first snorkel 4, the gas simultaneously in the first snorkel 4 also cannot be back in pneumatophore 101.
It should be noted that, the piezometric tube aeration air-tightness detection device itself that the utility model provides has good impermeability.
When the piezometric tube air-tightness detection device using the utility model to provide, first the input port of joint sleeve 501 with piezometric tube is closely socketed, then the output port of piezometric tube and pressure tap are blocked.Now extrude air bag 1, ambient atmos is pressed in piezometric tube pipe by the first snorkel 4 and the second snorkel 5.
Along with the continuous input of ambient atmos, if the complete and sealing of piezometric tube body is good, then the air pressure in piezometric tube pipe can keep higher state in long-time and air pressure numerical value does not change; If there is breakage and cause that sealing is poor or without impermeability, then the air pressure in piezometric tube pipe returns to normal pressure in certain time length in piezometric tube body.
Because the 3rd snorkel 6 is directly communicated with the second snorkel 5, therefore rain glass 3 directly can read the air pressure in piezometric tube pipe.Under setting atmospheric pressure state, the air pressure display numerical value of rain glass 3 is zero, and the air pressure measured is higher, and the display numerical value of rain glass 3 is also larger.
When piezometric tube impermeability is good, the display numerical value of rain glass 3 is greater than zero and can remains unchanged always; If when piezometric tube impermeability is poor, the display numerical value of rain glass 3 can be greater than zero in the starting stage, and after certain time length, the display numerical value of rain glass 3 is returned to zero; When the body of piezometric tube is badly damaged then without impermeability, after air bag 1 is inflated, the display numerical value of rain glass 3 can be returned to zero very soon.
The piezometric tube aeration air-tightness detection device that the utility model provides also has the function detecting piezometric tube aeration.The operation detecting piezometric tube aeration completes on the basis detecting the operation of piezometric tube impermeability, concrete, when detecting that piezometric tube impermeability is good, now the output port of piezometric tube and pressure tap dredging are not blocked, now again utilize air bag 1 to piezometric tube inflation, rain glass 3 detects piezometric tube internal gas pressure.When rain glass 3 detects that piezometric tube internal gas pressure is normal pressure or is returned to normal pressure very soon after rising always, then illustrate that piezometric tube aeration is good; When rain glass 3 detects that piezometric tube internal gas pressure is high pressure conditions in long-time, then illustrate in piezometric tube have tamper, aeration is poor, needs to change piezometric tube.
In sum, the piezometric tube aeration air-tightness detection device that application the utility model provides, after correctly installing, by pressurizeing to piezometric tube and reading the numerical value that rain glass shows, impermeability and the aeration of piezometric tube can be judged intuitively and accurately, simple to operate.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (4)
1. a piezometric tube aeration air-tightness detection device, is characterized in that, comprising:
Outwards can export the air bag of gas;
Three-way connection, described three-way connection comprises first interface, the second interface and the 3rd interface;
One end connects the described air bag other end and connects described first interface, the gas that described air bag exports is delivered to the first snorkel of described first interface;
One end connects described second interface, and the other end connects piezometric tube input port, the gas at described first interface place is delivered to the second snorkel in piezometric tube pipe;
Measure the rain glass of piezometric tube intraductal atmospheric pressure;
One end connects described rain glass, and the other end connects the 3rd snorkel of described 3rd interface.
2. piezometric tube aeration air-tightness detection device according to claim 1, it is characterized in that, described air bag comprises:
Ambient atmos is sucked the air admission hole of described air bag inside;
By the transfer port of the gas of described air bag inside discharged to described first snorkel.
3. piezometric tube aeration air-tightness detection device according to claim 2, it is characterized in that, described air bag comprises:
Be arranged on the first Non-return air valve on described air admission hole;
Be arranged on the second Non-return air valve on described transfer port.
4. piezometric tube aeration air-tightness detection device according to claim 3, is characterized in that, described second snorkel comprises:
The joint sleeve be socketed is sealed with piezometric tube input port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520569957.8U CN204924595U (en) | 2015-07-27 | 2015-07-27 | Pressure -measuring pipe air permeability gas tightness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520569957.8U CN204924595U (en) | 2015-07-27 | 2015-07-27 | Pressure -measuring pipe air permeability gas tightness detection device |
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| CN204924595U true CN204924595U (en) | 2015-12-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110586540A (en) * | 2019-08-22 | 2019-12-20 | 上海长海医院 | Endoscope processing method |
| CN111811757A (en) * | 2020-07-22 | 2020-10-23 | 海信（山东）冰箱有限公司 | Method and structure for inspecting vacuum pipeline system for refrigerator |
-
2015
- 2015-07-27 CN CN201520569957.8U patent/CN204924595U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110586540A (en) * | 2019-08-22 | 2019-12-20 | 上海长海医院 | Endoscope processing method |
| CN110586540B (en) * | 2019-08-22 | 2021-08-20 | 上海长海医院 | Endoscope processing method |
| CN111811757A (en) * | 2020-07-22 | 2020-10-23 | 海信（山东）冰箱有限公司 | Method and structure for inspecting vacuum pipeline system for refrigerator |
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Address after: 071000 northwest village of Henan village, Xian Tai Township, Baoding High-tech Zone, Hebei Patentee after: Baoding Kaiborui Technology Co.,Ltd. Address before: 071000 northwest village of Henan village, Xian Tai Township, Baoding High-tech Zone, Hebei Patentee before: BAODING KAIBORUI MACHINERY MANUFACTURING Co.,Ltd. |