CN106640815A - Pressure switching device of airtight leakage detecting system - Google Patents
Pressure switching device of airtight leakage detecting system Download PDFInfo
- Publication number
- CN106640815A CN106640815A CN201611227969.8A CN201611227969A CN106640815A CN 106640815 A CN106640815 A CN 106640815A CN 201611227969 A CN201611227969 A CN 201611227969A CN 106640815 A CN106640815 A CN 106640815A
- Authority
- CN
- China
- Prior art keywords
- passage
- pressure switching
- gas
- switching device
- handoff block
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/021—Valves for interconnecting the fluid chambers of an actuator
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
Abstract
The invention discloses a pressure switching device of an airtight leakage detecting system. The device comprises a channel switching block and pressure switching valves which are fixedly connected to the channel switching block. A gas inlet channel of a leakage detector connected to an inlet of the leakage detector and at least two gas source inlet channels are formed in the channel switching block, and each of the gas source inlets is connected to the gas inlet channel of the leakage detector through one pressure switching valve. In the pressure switching device provided by the invention, as a plurality of pressure sources are connected to the pressure switching valves and the leakage detector through the gas source inlets, when the pressure gas source needs to be replaced, the corresponding pressure switching valves are only operated. Compared with a condition of manually replacing a connecting pipeline by a worker, the pressure switching device disclosed by the invention effectively improves the work efficiency of the airtight leakage detecting system.
Description
Technical field
The present invention relates to air-tightness technical field of measurement and test, the pressure switching dress of more particularly to a kind of air-tightness side leakage system
Put.
Background technology
In the detecting gas tightness leakage system of product, connected using conventional pipeline between each workpiece, leak detector
It is connected with the pneumatic supply for needing by conventional pipeline, when needing to change pneumatic supply, needs leak detector with corresponding pneumatic supply
Interface connects.
Due to every time to leak detector input air pressure source when, be required to carry out a leak detector air intake interface connection, pipeline
Junction between pipeline is susceptible to leakage, and frequently dismounting pressure gas source and the access port of leak detector, causes air-tightness
The operating efficiency of side leakage system is relatively low.
Therefore, the how operating efficiency of air-tightness side leakage system, is those skilled in the art's technical problem urgently to be resolved hurrily.
The content of the invention
It is an object of the invention to provide a kind of pressure switching device of air-tightness side leakage system, with improve the air-tightness side leakage system
The operating efficiency of system.
For achieving the above object, the present invention provides a kind of pressure switching device of air-tightness side leakage system, including passage is cut
Change block and the pressure switching valve being fixedly connected in the passage handoff block, the passage handoff block be provided with for leak detector
The leak detector of import connection enters gas passage and at least two gas source inlet passages, and each described gas source inlet passes through a pressure
Power switching valve enters gas passage and is connected with the leak detector.
Preferably, the end of the gas source inlet passage is source of the gas connection screw thread hole.
Preferably, the gas source inlet passage is three, and three gas source inlet channel entrances are arranged at described leading to
The bottom of road handoff block.
Preferably, the leak detector enters gas channel end and is arranged on the passage handoff block sidepiece.
Preferably, the leak detector enters gas passage including end thread hole and is connected with the end thread hole, and to institute
State the gas distribution channel that passage handoff block inside extends.
Preferably, the passage handoff block is provided with pressure switching valve location hole.
Preferably, the pressure switching valve is magnetic valve.
Preferably, the passage handoff block colouring has leak detector outlet passageway and fixture to enter gas passage, and the leak detector goes out
Gas passage enters gas passage and is connected by closure magnetic valve with the fixture, and the closure magnetic valve is arranged on the passage handoff block
On.
Preferably, the fixture enters gas passage and includes entering to enter gas passage on gas passage and fixture under fixture, under the fixture
Enter gas passage to be connected with the leak detector outlet passageway, gas passage is entered on the fixture by the closure magnetic valve and the survey
The outlet passageway connection of amount instrument.
Preferably, the circulation passage handoff block is provided with exhaust passage, and the exhaust passage is by emptying magnetic valve and institute
State and enter on fixture the connection of gas passage, the emptying magnetic valve is arranged in the passage handoff block.
In above-mentioned technical proposal, the pressure switching device of the air-tightness side leakage system that the present invention is provided switches including passage
Block and the pressure switching valve being fixedly connected in passage handoff block, passage handoff block is provided with for being connected with leak detector import
Leak detector enters gas passage and at least two gas source inlet passages, and each gas source inlet is entered by a pressure switching valve with leak detector
Gas passage connects.When air-tightness side leakage system works, the corresponding pressure gas source connection of each gas source inlet passage is leaked hunting
Instrument according to access bleed pressure demand, open corresponding pressure switching valve, make corresponding pressure gas source pass through gas source inlet passage and
Leak detector enters gas passage and enters leak detector.When needing to change different pressures source of the gas, the pressure switching valve for using is closed, it is right to open
The pressure switching valve on passage is answered to carry out gas transmission operation.
By foregoing description, in the pressure switching device that the present invention is provided, because multiple pressure gas sources pass through gas
Source intake channel and pressure switching valve are connected with leak detector, when needing to change pressure gas source, only corresponding pressure need to be operated to switch
Valve, relative to background technology in, need staff to change the situation of connecting pipe manually, the pressure that the application is provided is cut
Changing device is effectively improved the operating efficiency of air-tightness side leakage system.
Description of the drawings
The structural representation of the pressure switching device that Fig. 1 is provided by the embodiment of the present invention；
The sectional view of the pressure switching device that Fig. 2 is provided by the embodiment of the present invention.
In wherein Fig. 1-2：1- passage handoff blocks, 2- first pressure switching valve installation portions, 3- second pressures switching valve are installed
Portion, the pressure switching valve installation portions of 4- the 3rd, 5- the first gas source inlet passages, 6- the second gas source inlet passages, the sources of the gas of 7- the 3rd enter
Mouthful passage, 8- leak detectors enter to enter to enter under gas passage, 10- fixtures on gas passage, 9- fixtures gas passage, 11- leak detector outlet passageways,
12- emptying magnetic valve installation portions, 13- closure magnetic valve installation portions, 14- exhaust passages.
Specific embodiment
The core of the present invention is to provide a kind of pressure switching device of air-tightness side leakage system, with improve the air-tightness side leakage system
The operating efficiency of system.
In order that those skilled in the art more fully understands technical scheme, below in conjunction with the accompanying drawings and embodiment party
The present invention is described in further detail for formula.
Fig. 1 and Fig. 2 is refer to, in a kind of specific embodiment, the air-tightness side leakage that the specific embodiment of the invention is provided
The pressure switching device of system includes passage handoff block 1 and the pressure switching valve being fixedly connected in passage handoff block 1, and passage is cut
Change the leak detector that block 1 is provided with for being connected with leak detector import and enter the gas source inlet passage of gas passage 8 and at least two, each gas
Source import enters gas passage 8 and is connected by a pressure switching valve and leak detector.For the service life of extending channel handoff block 1,
It is preferred that, the metal rectangular block that passage handoff block 1 is formed in one is more highly preferred to, and the surface of passage handoff block 1 is provided with anti-corrosion
Layer, the service life of further extending channel handoff block 1.In order to improve sealing, it is preferable that gas source inlet passage and leak detector enter
Gas passage 8 is end thread blind hole passage.
When air-tightness side leakage system works, the corresponding pressure gas source connection of each gas source inlet passage, leak detector
According to bleed pressure demand is accessed, corresponding pressure switching valve is opened, make corresponding pressure gas source pass through gas source inlet passage and survey
Leakage instrument enters gas passage 8 and enters leak detector.When needing to change different pressures source of the gas, the pressure switching valve for using is closed, it is right to open
The pressure switching valve on passage is answered to carry out gas transmission operation.
By foregoing description, in the pressure switching device that the specific embodiment of the invention is provided, due to multiple pressures
Strength source is connected by gas source inlet passage and pressure switching valve with leak detector, when needing to change pressure gas source, only needs operation
Corresponding pressure switching valve, relative to background technology in, need staff to change the situation of connecting pipe, the application manually
The pressure switching device of offer is effectively improved the operating efficiency of air-tightness side leakage system.
In order to improve sealing, it is preferable that the end of gas source inlet passage is source of the gas connection screw thread hole.
Specifically, gas source inlet passage is three, and three gas source inlet channel entrances are arranged at the bottom of passage handoff block 1
Portion, specifically, three gas source inlet passages can respectively connect 10KPa, 5KPa and 1.5KPa source of the gas.I.e. pressure switching valve is three
Individual, gas source inlet passage is named as successively the first gas source inlet passage 5, the second gas source inlet passage 6 and the 3rd gas source inlet and leads to
Road 7, three pressure switching valves are named as successively first pressure switching valve, second pressure switching valve and the 3rd pressure switching valve, tool
Body, passage handoff block 1 is provided with and is respectively used to install the switching of first pressure switching valve, second pressure switching valve and the 3rd pressure
The first pressure switching valve installation portion 2 of valve, second pressure switching valve installation portion 3 and the 3rd pressure switching valve installation portion 4, each pressure
Power switching valve installation portion is provided with one and enters the UNICOM of gas passage 8 with the gas source inlet hole of gas source inlet passage UNICOM and with leak detector
Source outlet hole.For the ease of installing pressure switching valve, passage handoff block 1 is provided with pressure switching valve installing hole.
For the ease of staff's stacking pressure switching device, it is preferable that leak detector enters the end of gas passage 8 and is arranged on passage to be cut
Change the sidepiece of block 1.It is more highly preferred to, leak detector enters gas passage 8 including end thread hole and is connected with end thread hole, and to passage
The gas distribution channel that the inside of handoff block 1 extends.
Pressure switching valve is installed for the ease of staff, it is preferable that passage handoff block 1 is provided with pressure switching valve positioning
Hole.
In order to reduce the labour intensity of staff, it is preferable that pressure switching valve is magnetic valve.
On the basis of above-mentioned each scheme, the colouring of passage handoff block 1 has leak detector outlet passageway 11 and fixture to enter gas passage,
Leak detector outlet passageway enters gas passage and is connected by closure magnetic valve with fixture, and closure magnetic valve is arranged in passage handoff block 1,
Passage handoff block 1 is provided with the closure magnetic valve installation portion 13 for installing closure magnetic valve.Led to by arranging leak detector outlet
Road 11 and fixture enter gas passage and are easy to leak detector to fixture gas transmission, reduce further intensity of workers, and improve close
Feng Xing.
Further, fixture enters gas passage and leads to including entering to enter to enter under gas passage 9, fixture on gas passage 10 and fixture gas under fixture
Road 10 is connected with leak detector outlet passageway 11, gas passage 9 is entered on fixture and is connected with gas passage at measuring instrument by closure magnetic valve.
Because fixture enters gas passage including entering to enter gas passage 9 on gas passage 10 and fixture under fixture, when do not need enter gas on fixture when, lead to
Cross closing closure magnetic valve, it is to avoid enter gas, when enter under needing fixture enter gas on gas and fixture when, will closure magnetic valve open, carry
The high versatility of pressure switching device.
Further, circulation passage handoff block 1 is provided with exhaust passage 14, and exhaust passage 14 is by emptying magnetic valve and fixture
On enter gas passage 9 and connect, emptying magnetic valve is arranged in passage handoff block 1, and passage handoff block 1 is provided with for installing emptying electricity
The emptying magnetic valve installation portion 12 of magnetic.When discharge pressure source of the gas is needed, emptying magnetic valve is opened, source of the gas in fixture is discharged,
It is simple to operate, and connecting line sealing is preferable.Each portion being connected to for the ease of staff's dismounting in passage handoff block 1
Part, it is preferable that exhaust passage 14, fixture enters gas passage and is tapped blind hole passage.
For the ease of the people's processing channel handoff block 1 that works, optimize structure, passage handoff block 1 is rectangular block, it is preferable that fixture
Under enter to enter on gas passage 10, fixture gas passage 9 and leak detector enters the end of gas passage 8 and is located on the first face of passage handoff block 1,
Leak detector outlet passageway 11 and the end of exhaust passage 14 are located on the second face of passage handoff block 1, the end of gas source inlet passage
On the 3rd face of passage handoff block 1, pressure switching valve, closure magnetic valve and emptying magnetic valve are arranged on passage handoff block 1
Fourth face on, wherein, the second face and the 3rd face are disposed opposite to each other, and the first face is arranged between the second face and the 3rd face, and with
Four sides is vertically arranged.
Each embodiment is described by the way of progressive in this specification, and what each embodiment was stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
Various modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope for causing.
Claims (10)
1. a kind of pressure switching device of air-tightness side leakage system, it is characterised in that including passage handoff block (1) and be fixedly connected
Pressure switching valve on the passage handoff block (1), the passage handoff block (1) is provided with for being connected with leak detector import
Leak detector enter gas passage (8) and at least two gas source inlet passages, each described gas source inlet is cut by the pressure
Change valve and enter gas passage (8) with the leak detector and be connected.
2. pressure switching device according to claim 1, it is characterised in that the end of the gas source inlet passage is source of the gas
Connection screw thread hole.
3. pressure switching device according to claim 2, it is characterised in that the gas source inlet passage is three, three
The gas source inlet channel entrance is arranged at the bottom of the passage handoff block (1).
4. pressure switching device according to claim 3, it is characterised in that the leak detector enters gas passage (8) end and sets
Put in passage handoff block (1) sidepiece.
5. pressure switching device according to claim 4, it is characterised in that the leak detector enters gas passage (8) including end
Portion's screwed hole and it is connected with the end thread hole, and the gas distribution channel extended to the inside of the passage handoff block (1).
6. pressure switching device according to claim 1, it is characterised in that the passage handoff block (1) is provided with pressure
Switching valve location hole.
7. pressure switching device according to claim 1, it is characterised in that the pressure switching valve is magnetic valve.
8. the pressure switching device according to any one of claim 1-7, it is characterised in that the passage handoff block (1)
Colouring has leak detector outlet passageway (11) and fixture to enter gas passage, the leak detector outlet passageway by closure magnetic valve with it is described
Fixture enters the connection of gas passage, and the closure magnetic valve is arranged on the passage handoff block (1).
9. pressure switching device according to claim 8, it is characterised in that the fixture enters gas passage including entering under fixture
Enter gas passage (9) on gas passage (10) and fixture, gas passage (10) is entered under the fixture with the leak detector outlet passageway (11)
Connection, is entered gas passage (9) and is connected with the measuring instrument outlet passageway by the closure magnetic valve on the fixture.
10. pressure switching device according to claim 9, it is characterised in that circulation passage handoff block (1) row of being provided with
Gas passage (14), the exhaust passage (14) is connected by emptying magnetic valve with gas passage (9) is entered on the fixture, the emptying
Magnetic valve is arranged on the passage handoff block (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611227969.8A CN106640815B (en) | 2016-12-27 | 2016-12-27 | The pressure switching device of detecting gas tightness leakage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611227969.8A CN106640815B (en) | 2016-12-27 | 2016-12-27 | The pressure switching device of detecting gas tightness leakage system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106640815A true CN106640815A (en) | 2017-05-10 |
| CN106640815B CN106640815B (en) | 2019-11-29 |
Family
ID=58832762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611227969.8A Active CN106640815B (en) | 2016-12-27 | 2016-12-27 | The pressure switching device of detecting gas tightness leakage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106640815B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2059481A1 (en) * | 1970-12-03 | 1972-06-08 | Langen & Co | Interlinkable block system |
| JPS52138724A (en) * | 1976-04-02 | 1977-11-19 | Telemecanique Electrique | Improved distribution device for use in air pressure instrument |
| CN2067784U (en) * | 1989-11-19 | 1990-12-19 | 宋学让 | Electromagnetic switching valve for instrument |
| CN2083052U (en) * | 1991-02-08 | 1991-08-21 | 航空航天工业部第一研究院第一设计部 | Switching unit of air supply system |
| US6035893A (en) * | 1996-06-25 | 2000-03-14 | Tadahiro Ohmi | Shutoff-opening devices and fluid control apparatus comprising such devices |
| CN102435403A (en) * | 2011-09-21 | 2012-05-02 | 浙江大学宁波理工学院 | Integrated device applicable to differential pressure leakage detection of high/low pressures |
| CN202301295U (en) * | 2011-10-14 | 2012-07-04 | 天津市同业科技发展有限公司 | Double air source switching device of negative-pressure aspirator |
| CN103170740A (en) * | 2012-12-22 | 2013-06-26 | 武汉金运激光股份有限公司 | Laser machining gas path device with switchable gas paths and use method thereof |
| CN203657608U (en) * | 2013-08-30 | 2014-06-18 | 常州欣战江特种纤维有限公司 | Air compression pressure switching regulating device for DTY (draw textured yarn) texturing machine |
| CN203694316U (en) * | 2014-02-24 | 2014-07-09 | 李鹍 | Anesthesia machine oxygen source pressure monitoring alarm and automatic switching device |
-
2016
- 2016-12-27 CN CN201611227969.8A patent/CN106640815B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2059481A1 (en) * | 1970-12-03 | 1972-06-08 | Langen & Co | Interlinkable block system |
| JPS52138724A (en) * | 1976-04-02 | 1977-11-19 | Telemecanique Electrique | Improved distribution device for use in air pressure instrument |
| CN2067784U (en) * | 1989-11-19 | 1990-12-19 | 宋学让 | Electromagnetic switching valve for instrument |
| CN2083052U (en) * | 1991-02-08 | 1991-08-21 | 航空航天工业部第一研究院第一设计部 | Switching unit of air supply system |
| US6035893A (en) * | 1996-06-25 | 2000-03-14 | Tadahiro Ohmi | Shutoff-opening devices and fluid control apparatus comprising such devices |
| CN102435403A (en) * | 2011-09-21 | 2012-05-02 | 浙江大学宁波理工学院 | Integrated device applicable to differential pressure leakage detection of high/low pressures |
| CN202301295U (en) * | 2011-10-14 | 2012-07-04 | 天津市同业科技发展有限公司 | Double air source switching device of negative-pressure aspirator |
| CN103170740A (en) * | 2012-12-22 | 2013-06-26 | 武汉金运激光股份有限公司 | Laser machining gas path device with switchable gas paths and use method thereof |
| CN203657608U (en) * | 2013-08-30 | 2014-06-18 | 常州欣战江特种纤维有限公司 | Air compression pressure switching regulating device for DTY (draw textured yarn) texturing machine |
| CN203694316U (en) * | 2014-02-24 | 2014-07-09 | 李鹍 | Anesthesia machine oxygen source pressure monitoring alarm and automatic switching device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106640815B (en) | 2019-11-29 |
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