CN204831732U - Airtight perfromance detection device - Google Patents

Airtight perfromance detection device Download PDF

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Publication number
CN204831732U
CN204831732U CN201520463931.5U CN201520463931U CN204831732U CN 204831732 U CN204831732 U CN 204831732U CN 201520463931 U CN201520463931 U CN 201520463931U CN 204831732 U CN204831732 U CN 204831732U
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China
Prior art keywords
article
air
measured
adapter
air pump
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CN201520463931.5U
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Chinese (zh)
Inventor
赖远强
黄高祥
赵志翔
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Edan Instruments Inc
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Edan Instruments Inc
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Priority to CN201520463931.5U priority Critical patent/CN204831732U/en
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Abstract

The utility model is suitable for a check out test set field provides an airtight perfromance detection device, including protective housing, one set at least detection mechanism with control the circuit board of each set detection mechanism work, each set detection mechanism is including being used for adapter, air pump, the pressure sensor who links to each other with the article that await measuring and feeding through the adapter and the pipeline of pressure sensor and air pump, pressure sensor and circuit board electrical property link to each other, and the air pump is installed in the protective housing, during the one end of adapter is fixed in the protective housing, outside the other end of adapter stretches out the protective housing, set up the opening that the other end that supplies the adapter stretches out on the protective housing. Through set up detection mechanism and circuit board in the protective housing to the convenient removal and the transportation, and use the air pump to change the article atmospheric pressure that awaits measuring to use pressure sensor to detect the atmospheric pressure of the article that await measuring, whether through the measuring atmospheric pressure of article after whether keeping changing that awaits measuring, thereby it is good to judge the gas tightness of the article that await measuring, judge accurate, convenient to use is also more safe, can not damage the article that await measuring.

Description

Air-tightness detection device
Technical field
The utility model belongs to checkout equipment field, particularly relates to a kind of air-tightness detection device.
Background technology
The equipment such as Bioexperiment research and medical in-vitro diagnosis checking often can use air-tightness detection device.Air-tightness detection device main is in the market high-pressure leak detector.High-pressure leak detector principle of work is as follows: in container, be filled with appropriate liquid, is immersed in the liquid of this container, then in container, passes into gases at high pressure by sealing contents to be measured; Article to be measured leak as occurred, then liquid in containers will be entered in article to be measured by leak position, otherwise then think that article impermeability to be measured is good, thus complete the air-leakage test of material to be measured.
But this high-pressure leak detector needs to be connected with high pressure gas, uses extremely inconvenient, and there is potential safety hazard; And article to be measured need be immersed in liquid, easily damage article to be measured.
Utility model content
The purpose of this utility model is to provide a kind of air-tightness detection device, and being intended to solve existing air-tightness detection device needs to be connected with high pressure gas, uses extremely inconvenient, and there is potential safety hazard; And article to be measured need be immersed in liquid, easily damage the problem of article to be measured.
The utility model realizes like this, a kind of air-tightness detection device, comprises containment vessel, at least one cover for changing air pressure in article to be measured and detecting described air pressure change to determine the testing agency whether this article impermeability to be measured is good and to control the circuit board of each cover described testing agency work; Described circuit board is installed in described containment vessel, the described testing agency of each cover comprise adapter for being connected with described article to be measured, for change air pressure in described article to be measured air pump, for detecting the pressure transducer of air pressure change in described article to be measured and being communicated with the pipeline of described adapter and described pressure transducer and described air pump; Described pressure transducer and described circuit board are electrical connected; described air pump is installed in described containment vessel; described air pump and described circuit board are electrical connected; one end of described adapter is fixed in described containment vessel; the other end of described adapter stretches out outside described containment vessel, described containment vessel offers the opening supplying the other end of described adapter to stretch out.
Further, also comprise the supporting seat for supporting described adapter, described supporting seat is installed in described containment vessel.
Further, described supporting seat is convexly equipped with the grip block for clamping described article to be measured, the other end of described adapter stretches in described grip block, and described grip block stretches out outside described containment vessel through described opening.
Further, described pipeline comprises threeway head, is communicated with the first connecting pipe of described threeway head and described air pump, is communicated with the second connecting pipe of described threeway head and described pressure transducer and the 3rd connecting pipe being communicated with described adapter and described threeway head.
Further, described pipeline also comprises adaptation and is communicated with the transfer tube of described 3rd connecting pipe and described adapter.
Further, described air pump comprises the piston pump for changing air pressure in described article to be measured and drives the stepper motor of described piston pump, and described stepper motor and described circuit board are electrical connected.
Further, described containment vessel comprises drain pan and is placed on the face-piece on described drain pan, and form the accommodating cavity of accommodating described testing agency and described circuit board between described drain pan and described face-piece, described opening is located on described face-piece.
Further, be provided with the positioning seat for fixing described air pump in described drain pan, described positioning seat offer the groove coordinating the described air pump in location.
Further, also comprise the fixed cap coordinating described positioning seat to grip described air pump, the corresponding fluting offering the accommodating described air pump of the described groove of cooperation on described fixed cap.
Further, also comprise for detecting the inductive switch whether described adapter being connected with described article to be measured, described inductive switch is installed on described containment vessel.
The utility model, by arranging testing agency and circuit board in a protective case, moves and transport to facilitate; And use air pump to change article air pressure to be measured, and use pressure transducer to detect the air pressure of article to be measured, the air pressure after changing whether can be kept by detecting article to be measured, thus judge that whether the impermeability of article to be measured is good, device is simple, light, more accurate to bubble-tight detection, efficiency is higher, easy to use also safer, article to be measured can not be damaged, can object be surveyed extensive.
Accompanying drawing explanation
Fig. 1 is the decomposition texture schematic diagram of a kind of air-tightness detection device that the utility model embodiment provides;
Fig. 2 is the perspective view of the inner structure of the air-tightness detection device of Fig. 1 when being connected with article to be measured;
Fig. 3 is the sectional structure schematic diagram of the air-tightness detection device of Fig. 1 when being connected with article to be measured;
Fig. 4 is the connection of the air-tightness detection device of Fig. 1 schematic diagram when detecting article impermeability to be measured.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Refer to Fig. 1, Fig. 2 and Fig. 3, a kind of air-tightness detection device 100 that the utility model embodiment provides, comprise the circuit board 2 that containment vessel 1, at least a set of testing agency 4 and control Ge Tao testing agency 4 work; Circuit board 2 is installed in containment vessel 1; Testing agency 4 for changing air pressure in article 900 to be measured, as in article 900 to be measured inflation or extract gas in article 900 to be measured, initiatively to change the air pressure in article 900 to be measured; And the change of this air pressure, initiatively changing in article 900 to be measured after air pressure, also can detect again in testing agency 4; Now, if this air pressure remains unchanged, then illustrate that article 900 impermeability to be measured is good; If this air pressure change, then illustrate that article 900 to be measured exist and leak.Circuit board 2 works for control Ge Tao testing agency 4, to realize automatic detection.Containment vessel 1 can play the effect of protection circuit plate 2 and testing agency 4.
A set of testing agency 4 can be installed in containment vessel 1, also Duo Tao testing agency 4 can be installed, to detect multiple article 900 to be measured simultaneously, improve detection efficiency.Such as, in containment vessel 1 structure of Fig. 1 and Fig. 2 four cover testing agencies 4 can be installed, and reflect this air-tightness detection device 100 for convenience of clear, a set of testing agency 4 is only shown in containment vessel 1.In other embodiments, more testing agency 4 can also be installed in containment vessel 1, also a set of testing agency 4 only can be installed.
Ge Tao testing agency 4 comprises adapter 70, air pump 50, pressure transducer 60 and pipeline 80.Adapter 70 is for being connected with article 900 to be measured.Air pump 50 for changing air pressure in article 900 to be measured, namely in article 900 to be measured inflation or extract gas in article 900 to be measured.Pressure transducer 60 is for detecting air pressure change in article 900 to be measured.When air pump 50 initiatively changes in article 900 to be measured after air pressure, if change appears in the air pressure that pressure transducer 60 records again, then judge that article 900 to be measured exist and leak; If the air pressure that pressure transducer 60 records again is constant, then article 900 impermeability to be measured is good.Pipeline 80 is connected with air pump 50 with adapter 70, pressure transducer 60, namely adapter 70, pressure transducer 60 is communicated with air pump 50 by pipeline 80, and when adapter 70 is connected with article 900 to be measured, can form a closed pipeline.Change the air pressure in this pipeline by air pump 50, after air pressure changes, if article to be measured 900 impermeability is good, then pressure transducer 60 records air pressure in this pipeline and remains unchanged; If leaking appears in article 900 to be measured, then pressure transducer 60 records air pressure in this pipeline and there will be change.As when air pump 50 is inflated in pipeline, can inflate to article 900 to be measured, if leaking appears in article to be measured 900, then pressure transducer 60 records air pressure in this pipeline and reduces gradually simultaneously.If when air pump 50 is for extracting gas in pipeline, can extract gas in article 900 to be measured simultaneously, if leaking appears in article to be measured 900, then pressure transducer 60 records air pressure in this pipeline and raises gradually.Thus air pressure in article 900 to be measured can be measured by pressure transducer 60 and whether change and judge article 900 to be measured whether impermeability is good.
Pressure transducer 60 and circuit board 2 are electrical connected, and circuit board 2 is arranged in containment vessel 1, then pressure transducer 60 is also arranged in containment vessel 1, protects pressure transducer 60 by containment vessel 1, carrys out controlled pressure sensor 60 by circuit board 2 simultaneously.
Preferably, pressure transducer 60 is absolute pressure sensor, detects the absolute pressure in article 900 to be measured, and carrys out detected pressures value by circuit board 2, and compare with set pressure by absolute pressure sensor.Be specially, when after pressure in change pipeline 80 and article to be measured 900, certain interval of time, by force value in absolute pressure sensor testing pipes 80 or article to be measured 900, when the force value detected is constant, and when specifically having a difference with set pressure, then illustrate that article 900 impermeability to be measured is good; If the force value detected is changing always, or time identical with set pressure, then illustrating that article 900 to be measured exist and leaking, poor air-tightness.
Air pump 50 and circuit board 2 are electrical connected, and control air pump 50 work by circuit board 2.Air pump 50 is installed in containment vessel 1, is supported and protect air pump 50 by containment vessel 1.One end of adapter 70 is fixed in containment vessel 1, to support adapter 70 by containment vessel 1; The other end of adapter 70 stretches out outside containment vessel 1, containment vessel 1 offers the opening 121 supplying the other end of adapter 70 to stretch out, so that adapter 70 is connected with article 900 to be measured.
By arranging testing agency 4 and circuit board 2 in containment vessel 1, to facilitate mobile and transport.Air pump 50 is used to change article 900 air pressure to be measured, and use pressure transducer 60 to detect the air pressure of article 900 to be measured, the air pressure after changing whether can be kept by detecting article 900 to be measured, thus judge that whether the impermeability of article 900 to be measured is good, accuracy of judgement, easy to use also safer, article 900 to be measured can not be damaged.
Further, this air-tightness detection device 100 also comprises supporting seat 31, and supporting seat 31 is installed in containment vessel 1.Adapter 70 is arranged on supporting seat 31, and logical supporting seat 31 fixes and supports adapter 70, support adapter 70 that not only can be more stable, and can more conveniently assemble.
Further, supporting seat 31 is provided with the grip block 311 for clamping article 900 to be measured, and the other end of adapter 70 stretches in grip block 311, and grip block 311 stretches out outside containment vessel 1 through opening 121.Grip block 311 is set to clamp article 900 to be measured, conveniently can carries out air-leakage test to article 900 to be measured; Meanwhile, adapter 70 and the geo-stationary of article 900 to be measured can also be kept, prevent from affecting the leakage efficiency be connected between adapter 70 with article 900 to be measured because of vibration.
Preferably; well be connected with article 900 to be measured to make adapter 70; and protection sealing; adapter 70 can use the making such as silica gel or rubber; namely adapter 70 can be silica gel head or Rubber end; so that when adapter 70 is connected with article 900 to be measured, ensure the good seal between adapter 70 and article to be measured 900.
In the present embodiment, grip block 311 is U-shaped, and article 900 to be measured can insert grip block 311 from the top of grip block 311, and are connected with adapter 70.In other embodiments, grip block 311 can be provided at the clamping plate of adapter 70 both sides, clamps article 900 to be measured by clamping plate.
In the present embodiment, supporting seat 31 can simultaneously fixed support four adapters 70, corresponding supporting seat 31 are provided with four grip blocks 311.In other embodiments, supporting seat 31 also can only fixed support adapter 70, and supporting seat 31 is only arranged a grip block 311.Certainly, in other embodiments, supporting seat 31 also can the adapter 70 of other quantity of fixed support, and supporting seat 31 is arranged the grip block 311 of respective numbers.
Further, pipeline 80 comprises threeway the 84, first connecting pipe 81, second connecting pipe 82 and the 3rd connecting pipe 83; First connecting pipe 81 is communicated with threeway 84 and air pump 50, second connecting pipe 82 and is communicated with threeway 84 and pressure transducer the 60, three connecting pipe 83 and is communicated with adapter 70 and threeway 84.Use threeway the 84, first connecting pipe 81, second connecting pipe 82 and the 3rd connecting pipe 83 to be assembled into pipeline 80, each assembling parts of testing agency 4 can be facilitated to connect.In other embodiments, pipeline 80 also can be the structure of welding in one.Certain adapter 70 also can be one-body molded with pipeline 80.
Further, pipeline 80 also comprises the transfer tube 85 being communicated with the 3rd connecting pipe 83 and adapter 70 for adaptation.Transfer tube 85 is set, one end of transfer tube 85 is connected with adapter 70, and the other end is connected with the 3rd connecting pipe 83, thus conveniently the 3rd connecting pipe 83 can be assembled with adapter 70 and be connected.
Refer to Fig. 2, Fig. 3 and Fig. 4, further, air pump 50 comprises piston pump 52 and stepper motor 51, and stepper motor 51 and circuit board 2 are electrical connected.Worked by stepper motor 51 driven plunger pump 52, thus change air pressure in article 900 to be measured.Use piston pump 52, the size of control break air pressure that can be good, controls more accurate.
Piston pump 52 comprises cylinder 521, is slidably mounted on the piston 522 in cylinder 521 and controls the air valve 523 that gas entered and discharged cylinder 521, and air valve 523 is installed on cylinder 521, and piston 522 is connected with stepper motor 51, and air valve 523 is connected with pipeline 80.Stepper motor 51 is connected with circuit board 2 by wire 511.Conveniently circuit board 2 and stepper motor 51 are electrically connected, and circuit board 2 can also arrange attachment plug 21, are electrical connected namely realizing stepper motor 51 in the wire 511 of stepper motor 51 directly insertion plug 21 with circuit board 2.
This air-tightness detection device 100 course of work is as follows:
Circuit board 2 control step motor 51 works, stepper motor 51 driven plunger 522 is slided in cylinder 521, thus the gas extracted in pipeline 80, because pipeline 80 is connected with article 900 to be measured by adapter 70, thus the gas that can extract in article 900 to be measured, change the air pressure in article 900 to be measured; And pipeline 80 is communicated with pressure transducer 60, then pressure transducer 60 can detect the change of air pressure in article 900 to be measured, if air pressure remains unchanged in article to be measured 900, then article 900 impermeability to be measured is good; If raising appears in the air pressure that pressure transducer 60 records, then illustrate that article 900 to be measured exist and leak.
In other embodiments, also can be inflated in pipeline 80 by piston pump 52.
Refer to Fig. 1, Fig. 2 and Fig. 3, the face-piece 12 that containment vessel 1 comprises drain pan 11 and is placed on drain pan 11, form the accommodating cavity 10 of accommodating testing agency 4 and circuit board 2 between drain pan 11 and face-piece 12, opening 121 is located on face-piece 12.Form containment vessel 1 by drain pan 11 and face-piece 12, processing and fabricating is convenient, also facilitates the installation of circuit board 2 and testing agency 4 simultaneously.In the present embodiment, due to four cover testing agencies 4 can be installed in containment vessel 1, thus, face-piece 12 offers four openings 121, so that the adapter 70 of four cover testing agencies 4 stretches out, to connect article 900 to be measured.
Further, face-piece 12 is provided with the supporting surface 122 coordinating and support article 900 to be measured.Supporting surface 122 is set, to support article 900 to be measured, better to make article 900 to be measured be connected with adapter 70, convenient detection.When supporting seat 31 is provided with grip block 311, grip block 311 can be made to coordinate supporting surface 122 to fix and to support article 900 to be measured, better can keep the steady of article 900 to be measured, convenient detection.
Further, in drain pan 11, be provided with the positioning seat 32 for fixing air pump 50, positioning seat 32 offer the groove 321 coordinating location air pump 50.Positioning seat 32 is set, and groove 321 is set on positioning seat 32, air pump 50 can be located more easily, to be fixed in drain pan 11 by air pump 50, and keep air pump 50 to stablize.
Further, this air-tightness detection device 100 also comprises fixed cap 33, and fixed cap 33 is provided with fluting 331; When fixed cap 33 is arranged on positioning seat 32, fixed cap 33 coordinates positioning seat 32 to clamp air pump 50, thus is fixed by air pump 50.Meanwhile, when fixed cap 33 covers on positioning seat 32, fluting 331 is positioned on corresponding groove 321, and is fixed on by air pump 50 between groove 321 and fluting 331, better to fix air pump 50.
In the present embodiment, can install four cover testing agencies 4 in containment vessel 1, thus, positioning seat 32 be provided with four grooves 321, corresponding fixed cap 33 is provided with four flutings 331.In other embodiments, the groove 321 of other quantity also can be set on positioning seat 32, and corresponding fluting 331 is set on fixed cap 33.
In the present embodiment, positioning seat 32 is one-body molded with drain pan 11, and processing and fabricating is convenient.In other embodiments, positioning seat 32 also can make separately, then is arranged in drain pan 11.
Further, this air-tightness detection device 100 also comprises on containment vessel 1, and inductive switch is arranged in grip block 311, to detect on adapter 70 whether be connected with article 900 to be measured, to control testing agency 4 automatic operation by circuit board 2.Preferably, inductive switch also can be arranged in grip block 311, to detect whether article 900 to be measured are connected with adapter 70 more directly, more accurately.Particularly, inductive switch can be optical coupled switch, touch-switch etc.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.

Claims (10)

1. an air-tightness detection device, it is characterized in that, comprise containment vessel, at least one cover for changing air pressure in article to be measured and detecting described air pressure change to determine the testing agency whether this article impermeability to be measured is good and to control the circuit board of each cover described testing agency work; Described circuit board is installed in described containment vessel, the described testing agency of each cover comprise adapter for being connected with described article to be measured, for change air pressure in described article to be measured air pump, for detecting the pressure transducer of air pressure change in described article to be measured and being communicated with the pipeline of described adapter and described pressure transducer and described air pump; Described pressure transducer and described circuit board are electrical connected; described air pump is installed in described containment vessel; described air pump and described circuit board are electrical connected; one end of described adapter is fixed in described containment vessel; the other end of described adapter stretches out outside described containment vessel, described containment vessel offers the opening supplying the other end of described adapter to stretch out.
2. air-tightness detection device as claimed in claim 1, it is characterized in that, also comprise the supporting seat for supporting described adapter, described supporting seat is installed in described containment vessel.
3. air-tightness detection device as claimed in claim 2; it is characterized in that; described supporting seat is convexly equipped with the grip block for clamping described article to be measured, the other end of described adapter stretches in described grip block, and described grip block stretches out outside described containment vessel through described opening.
4. air-tightness detection device as claimed in claim 1, it is characterized in that, described pipeline comprises threeway head, be communicated with the first connecting pipe of described threeway head and described air pump, be communicated with the second connecting pipe of described threeway head and described pressure transducer and the 3rd connecting pipe being communicated with described adapter and described threeway head.
5. air-tightness detection device as claimed in claim 4, it is characterized in that, described pipeline also comprises adaptation and is communicated with the transfer tube of described 3rd connecting pipe and described adapter.
6. air-tightness detection device as claimed in claim 1, is characterized in that, described air pump comprises the piston pump for changing air pressure in described article to be measured and drives the stepper motor of described piston pump, and described stepper motor and described circuit board are electrical connected.
7. the air-tightness detection device as described in any one of claim 1-6; it is characterized in that; described containment vessel comprises drain pan and is placed on the face-piece on described drain pan, and form the accommodating cavity of accommodating described testing agency and described circuit board between described drain pan and described face-piece, described opening is located on described face-piece.
8. air-tightness detection device as claimed in claim 7, is characterized in that, is provided with the positioning seat for fixing described air pump, described positioning seat offers the groove coordinating the described air pump in location in described drain pan.
9. air-tightness detection device as claimed in claim 8, is characterized in that, also comprises the fixed cap coordinating described positioning seat to grip described air pump, the corresponding fluting offering the accommodating described air pump of the described groove of cooperation on described fixed cap.
10. the air-tightness detection device as described in any one of claim 1-6, is characterized in that, also comprise for detecting the inductive switch whether described adapter being connected with described article to be measured, described inductive switch is installed on described containment vessel.
CN201520463931.5U 2015-07-01 2015-07-01 Airtight perfromance detection device Active CN204831732U (en)

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Application Number Priority Date Filing Date Title
CN201520463931.5U CN204831732U (en) 2015-07-01 2015-07-01 Airtight perfromance detection device

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Application Number Priority Date Filing Date Title
CN201520463931.5U CN204831732U (en) 2015-07-01 2015-07-01 Airtight perfromance detection device

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CN204831732U true CN204831732U (en) 2015-12-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112098020A (en) * 2020-09-18 2020-12-18 宁波益诺生智能制造有限公司 Water collecting cup air leakage detection device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112098020A (en) * 2020-09-18 2020-12-18 宁波益诺生智能制造有限公司 Water collecting cup air leakage detection device

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