CN108458844B - A kind of intelligence bellows air-tightness batch detecting device and detection method - Google Patents
A kind of intelligence bellows air-tightness batch detecting device and detection method Download PDFInfo
- Publication number
- CN108458844B CN108458844B CN201810690864.9A CN201810690864A CN108458844B CN 108458844 B CN108458844 B CN 108458844B CN 201810690864 A CN201810690864 A CN 201810690864A CN 108458844 B CN108458844 B CN 108458844B
- Authority
- CN
- China
- Prior art keywords
- air
- bellows
- detection
- tightness
- detection station
- 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.)
- Active
Links
Classifications
-
- 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
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
- G01M3/2815—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
Abstract
The invention discloses a kind of intelligent bellows air-tightness batch detecting devices, it is related to bellows air tightness detection equipment technical field, including odd number detection station, the both ends of detection station are respectively equipped with jointing, one end of detection station is connected by connecting tube one with the outlet of air pump, the other end of detection station is connected by connecting tube two with the entrance of pressure measuring mechanism, and the both ends of detection station are separately connected to form parallel-connection structure, further includes control system and alert mechanism.The series connection of multiple detection stations can be integrated by the present invention as needed, then it connects with air pump and pressure measuring mechanism, so as to be detected simultaneously to multiple bellowss, if unqualified, then become three parts in parallel, underproof part is being repeated detection process by the air-tightness for detecting three parts respectively after the same method.The invention also discloses a kind of detection methods of intelligent bellows air-tightness batch detecting device.
Description
Technical field
The present invention relates to bellows air tightness detection equipment technical field, specifically a kind of intelligent bellows is airtight
Property batch detecting device and detection method.
Background technique
Corrugated stainless steel tubing is installed in liquid conveying system as a kind of flexible pressure-resistant pipe fitting, to compensate pipeline or machine
The effects of mutual displacement of device, equipment connecting pin absorbs vibrational energy, can play vibration damping, noise reduction has flexible, quality
Gently, the multinomial feature such as corrosion-resistant, antifatigue, high-low temperature resistant.But the use of existing bellows generally will form both ends and be welded with method
Blue modular construction, gas or liquid medium of the ripple tube cavity filled with certain pressure when use, such as combustion gas inflammable gas, because
This, it is necessary to assure its leakproofness, it is ensured that its security performance.
The existing bellows method of inspection is generally detected by hydraulic pressure, and detection means is close to will test bellows both ends to be measured
Envelope, is placed in water, according to there is bubble-free, to determine whether tube body leaks after pressurization；
The detection means major defect mainly has the following
1) bubble-free needs artificial judgement, so there is the case where erroneous judgement, misjudgement；
2) water itself has certain corrosiveness to stainless steel, influences product quality；
3) when detecting, product sealing needs manual operation, and needs double cooperation, is manually respectively screwed into seal plug
Both ends pipe fitting daily 8 hours, amount of inspection about 500 or so, is needed daily with 0.5 cubic metre of water, and working efficiency is low,
Improve testing cost；
4) it after product testing, needs to dry, dryer power is 10KW, needs continuous baking 3 hours, daily power consumption daily
30KWH increases production cost, reduces production efficiency.
Through retrieving, Chinese utility model patent: CN201120509395.X discloses a kind of effective gas tightness inspection of ripple
Device, including air leakage detector are surveyed, it further includes the detection core bar being arranged in bellows to be measured and is arranged in wave to be measured
Line pipe both ends, and the detection fixture of corrugated tube end to be measured is sealed, detection fixture is equipped with the sealing for pressing closer corrugated tube end to be measured
Plugging, sealing plugging are connected by tracheae with air leakage detector.Utility model carries out air pressure detection using gas is filled with
The leakproofness of bellows, it is more reasonable that machine determines, avoids causing leaker to be judged by accident because of human factor；Meanwhile avoid tube body with
Water contact, improves product appearance quality, has saved water consumption；Every bellows is detected as single detection, and pneumostop replaces
Manual seal, greatly reduces labor intensity, and production efficiency improves 50% or more, eliminates baking process, energy is greatly saved
Source.
But it still has more serious disadvantage, such as operating procedure is still cumbersome, needs first to will test core bar and inserts
Enter into bellows to be detected, the both ends of bellows to be detected are then passed through into jointing and assembly detection apparatus respectively
Connection, needs to dismantle the bellows detected after detection, then repeats the above process.In this detection mode, once
It is merely able to detection one, detection efficiency is low, still to be improved.
Summary of the invention
According to the above-mentioned deficiencies of the prior art, the invention proposes a kind of intelligent bellows air-tightness batch detecting devices
And detection method, it is dedicated to solving one of the technical problem in aforementioned background art.
The present invention solves its technical problem using following technical scheme to realize:
A kind of intelligence bellows air-tightness batch detecting device, including odd number detection station, the both ends of detection station
It is respectively equipped with jointing, one end of detection station is connected with the outlet of air pump by connecting tube one, is installed in connecting tube one
There is solenoid valve one, the other end of detection station is connected with the entrance of pressure measuring mechanism by connecting tube two, is installed in connecting tube two
There is solenoid valve two, the both ends of detection station pass through connecting tube three respectively and are connected to form parallel-connection structure, are equipped in connecting tube three
Solenoid valve three, further includes control system and alert mechanism, alert mechanism, air pump, solenoid valve one, solenoid valve two, solenoid valve three, with
Pressure measuring mechanism is electrically connected with control system respectively.
As further improvement of the invention, the pressure measuring mechanism includes using the tube body of transparent material production, tube body
It is closed at one end, the other end is equipped with jointing, be equipped with the circular bulkheads that can be moved axially along tube body in tube body, circular bulkheads with
Tube cavity is divided into two independent chambers, reset spring, pipe is equipped in tube body by the central axis of tube body, circular bulkheads
The first spring connecting point and second spring tie point, the both ends difference of reset spring are respectively equipped on the inner sidewall of body and on partition
It is fixed on the first spring connecting point and second spring tie point, the two sides of the outside of tube body are corresponding to be equipped with signal transmitter
Structure and signal receiving structure, signal receiving structure and signal-sending mechanism are sent to be electrically connected with control system respectively.
As further improvement of the invention, the end of the circular bulkheads is fixed with ring-shaped rubber pad.
As further improvement of the invention, the alert mechanism is LED light group, in LED light group the quantity of LED light with
The quantity of detection station is equal and corresponds.
As further improvement of the invention, relief valve is installed on the pressure measuring mechanism.
A kind of detection method of intelligence bellows air-tightness batch detecting device, includes the following steps
Step 1: the bellows series connection that will test in station is integrated, and its both ends is respectively connected to air pump and pressure measuring machine
Structure；
Step 2: making to reach preset pressure in the bellows in detection station by air-pump inflating；
Step 3: judge whether air pressure change is qualified after preset time,
If S1, air pressure are qualified, the bellows in detection station all meets air-tightness requirement, and detection terminates；
If S2, air pressure are unqualified, it will test station and be divided into three independent parts, detection station in each part
Quantity be odd number, the series connection of bellows in each part is integrated, and both ends are respectively connected to air pump and pressure measuring mechanism, make
The air pressure change for detecting the bellows in each part respectively with same detection method finds out the underproof part of air pressure, so
The part is divided into three smaller subelements again afterwards, and is detected using same method, until find out it is all not
Meet the bellows of air-tightness requirement.
As further improvement of the invention, judge that whether qualified air pressure change method be specific in the step 3
For, compound action of the two sides of partition by air pressure and reset spring, after the completion of air-pump inflating, partition be located at pipe it is intracorporal certain
One position, if in preset time, partition passes to the signal of signal receiving structure without blocking signal transmitting mechanism always, then
Illustrating that the pressure change of partition two sides is in allowed band, i.e., air pressure change is qualified, and bellows meets air-tightness requirement, if
In preset time, blocking signal transmitting mechanism passes to the signal of signal receiving structure to partition always, then illustrates partition two sides
Pressure change is more than allowed band, i.e. air pressure change is unqualified, and bellows is unsatisfactory for air-tightness requirement.
The beneficial effects of the present invention are:
It, can be as needed by multiple detection stations by the adjustment of the on-off to solenoid valve one, two and three in the present invention
Series connection is integrated, and is then connected with air pump and pressure measuring mechanism, so as to detect simultaneously to multiple bellowss, if do not conformed to
Lattice, then the on-off of adjusting solenoid valve one, two and three again, makes it become three parts in parallel, detects the gas of three parts respectively
Underproof part is being divided into three smaller subelements after the same method, is repeating detection process by close property, until will
All bellowss that air-tightness is wanted that are unsatisfactory for all are found out.The present invention can be realized the batch detection of bellows, and method is simple,
Clear principle, detection efficiency are high.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the main view of present embodiment；
Fig. 2 is the fragmentary detail view of the pressure measuring mechanism of present embodiment；
Fig. 3 is the detection figure one of present embodiment；
Fig. 4 is the detection figure two of present embodiment；
Fig. 5 is the detection figure three of present embodiment.
In figure: 1- detection station, 2- connecting tube one, 3- connecting tube three, 4- air pump, 5- connecting tube two, 6- relief valve, 7- are surveyed
Press mechanism, 71- tube body, 72- partition, 73- reset spring, 74- signal-sending mechanism, 75- signal receiving structure.
Specific embodiment
Below by the description to embodiment, the shape of for example related each component of a specific embodiment of the invention, structure
It makes, the mutual alignment between each section and connection relationship, the effect of each section and working principle, manufacturing process and the side of operating with
Method etc., is described in further detail, completeer to help those skilled in the art to have inventive concept of the invention, technical solution
Whole, accurate and deep understanding.
As shown in Figures 1 to 5, a kind of intelligent bellows air-tightness batch detecting device, including multiple detection stations 1,
It is arranged in parallel between multiple detection stations 1, the quantity of detection station 1 is odd number, and the both ends of detection station 1 are respectively equipped with connection and connect
Head, jointing are used to connect the both ends of bellows to be detected, and one end of detection station 1 passes through connecting tube 1 and air pump 4
Outlet is connected, and the air pump 4 is to take out to fill dual-purpose air pump 4, is equipped with solenoid valve one in connecting tube 1, detection station 1 it is another
End is connected by connecting tube 25 with the entrance of pressure measuring mechanism 7, is equipped with solenoid valve two in connecting tube 25, on pressure measuring mechanism 7
Relief valve 6 is installed, the both ends of multiple detection stations 1 pass through connecting tube 33 respectively and are connected to form parallel-connection structure, connecting tube three
Solenoid valve 3 is installed on 3.
Pressure measuring mechanism 7 include using transparent material production tube body 71, tube body 71 it is closed at one end, the other end be equipped with connection
Connector, jointing with the end of connecting tube 25 for being connected.Specifically, tube body 71 can be using materials such as quartz, acrylics
Matter production.The circular bulkheads 72 that can be moved axially along tube body 71, the center line of circular bulkheads 72 and tube body 71 are equipped in tube body 71
Vertically, 71 inner cavity of tube body is divided into two independent chambers by circular bulkheads 72, in order to increase the air-tightness of circular bulkheads 72, is prevented
Only there are airflow between two chambers, the end of circular bulkheads 72 is fixed with ring-shaped rubber pad.It is equipped with and resets in tube body 71
Spring 73 is respectively equipped with the first spring connecting point and second spring tie point on the inner sidewall of tube body 71 and on partition 72, resets
The both ends of spring 73 are separately fixed on the first spring connecting point and second spring tie point.The two sides of the outside of tube body 71 are opposite
That answers is equipped with signal-sending mechanism 74 and signal receiving structure 75, and signal receiving structure 75 is for receiving the hair of signal-sending mechanism 74
The signal sent.
The intelligence bellows air-tightness batch detecting device further includes control system and alert mechanism, alert mechanism, gas
Pump 4, solenoid valve one, solenoid valve two, solenoid valve three, signal-sending mechanism 74 and signal receiving structure 75 are electric with control system respectively
Property connection.Specific alert mechanism can be LED light group, and the quantity of LED light is equal with the quantity of detection station 1 in LED light group
And correspond, in detection process, LED light is bright, and the air-tightness for representing the bellows in the detection station 1 is unsatisfactory for requiring.
The working principle of the invention is: the quantity of detection station 1 is N, and N is odd number, and bellows to be detected is installed into N
In a detection station 1, the both ends of bellows are connected with the jointing at installation station both ends, then start control system, control
System control solenoid valve one, solenoid valve two and solenoid valve three processed open or close, and the bellows in N number of detection station 1 is made to connect
Connection (for ease of understanding and describes, the N in figure is equal to 9, then by connecting tube one idle in Fig. 3, two and as shown in Figure 3
Three leave out), and first bellows is connected to air pump 4 by connecting tube 1, the last one bellows is connected by connecting tube 25
It is connected to pressure measuring mechanism 7, then control system control air pump 4 is inflated into bellows to be detected, when air pressure reaches preset value
(i.e. relief valve 6 starts pressure release), air pump 4 stops working, and at this time under the compound action of air pressure and reset spring 73, partition 72 is quiet
The only a certain position in tube body 71, the horizontal distance between partition 72 and signal-sending mechanism 74 is △ x at this time, then pre-
If in the time, if the moving distance s < △ x of partition 72, what signal receiving structure 75 can continue in the period is received
The signal that signal-sending mechanism 74 is sent, then illustrate that the air-tightness of the bellows in detection station 1 meets the requirements.If pre-
If in the time, the dynamic distance s > △ x of partition 72, due to the obstruction of partition 72, makes signal receiving structure 75 then as s=△ x
The signal of the transmission of signal-sending mechanism 74 can not be received, control system then judges that the bellows in N number of detection station 1 is at least deposited
Air-tightness requirement is unsatisfactory at one.Then the inverse operating of control system control air pump 4, the compressed gas in bellows is extracted out,
Then control solenoid valve one, solenoid valve two and solenoid valve three open or close, make N number of detection station 1 be divided into three mutually solely
Vertical part, the series connection of detection station 1 in each part is integrated, and its quantity is respectively N1, N2 and N3, and N1, N2 and N3 are equal
For odd number, (for ease of understanding, N1, N2 and N3 in Fig. 4 are respectively equal to 5,1 and 3), and the first of each part as shown in Figure 4
A bellows is connected to air pump 4 by connecting tube 1, the last one bellows is connected to pressure measuring mechanism 7 by connecting tube 25,
Then the solenoid valve one and solenoid valve two of control system control two of them part, then repeats above-mentioned detection process, to the portion
The bellows divided in detection station 1 carries out air-leakage test and illustrates the part if testing result meets air-tightness requirement
Bellows is qualified, then tests the bellows of other two part respectively again.If testing result is unsatisfactory for air-tightness requirement,
Then the part is divided into three smaller subelements again by control system again, and n1, n2 and n3, n1, n2 and n3 are odd number, is such as schemed
Shown in 5, then repeat the above steps, then underproof subelement divided again, until subelement in only one
All bellowss for being unsatisfactory for air-tightness requirement can be found out when detection station, will finally be unsatisfactory for the bellows of air-tightness requirement
Staff is fed back to by alert mechanism.
It, can be as needed by multiple detection stations 1 by the adjustment of the on-off to solenoid valve one, two and three in the present invention
Series connection is integrated, and is then connected with air pump 4 and pressure measuring mechanism 7, so as to detect simultaneously to multiple bellowss, if not
Qualification, then the on-off of adjusting solenoid valve one, two and three again, makes it become three parts in parallel, detects three parts respectively
Underproof part is being divided into three smaller subelements after the same method, is repeating detection process by air-tightness, until
All bellowss that air-tightness is wanted that is unsatisfactory for all are found out.The present invention can be realized the batch detection of bellows, method letter
It is single, clear principle, detection efficiency height.
The present invention is exemplarily described above, it is clear that present invention specific implementation is not subject to the restrictions described above,
As long as using the improvement for the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out, or not improved this is sent out
Bright conception and technical scheme directly apply to other occasions, within the scope of the present invention.Protection of the invention
Range should be determined by the scope of protection defined in the claims.
Claims (4)
1. a kind of detection method of intelligence bellows air-tightness batch detecting device, it is characterised in that:
The detection device includes odd number detection station, and the both ends of detection station are respectively equipped with jointing, detection station
One end is connected by connecting tube one with the outlet of air pump, and solenoid valve one, the other end of detection station are equipped in connecting tube one
It is connected by connecting tube two with the entrance of pressure measuring mechanism, solenoid valve two, the both ends point of detection station is installed in connecting tube two
Not Tong Guo connecting tube three be connected to form parallel-connection structure, solenoid valve three is installed in connecting tube three, further includes control system and police
Mechanism is reported, alert mechanism, air pump, solenoid valve one, solenoid valve two, solenoid valve three and pressure measuring mechanism are electrical with control system respectively
Connection；
The detection method includes the following steps
Step 1: the bellows series connection that will test in station is integrated, and its both ends is respectively connected to air pump and pressure measuring mechanism；
Step 2: making to reach preset pressure in the bellows in detection station by air-pump inflating；
Step 3: judge whether air pressure change is qualified after preset time,
If S1, air pressure are qualified, the bellows in detection station all meets air-tightness requirement, and detection terminates；
If S2, air pressure are unqualified, it will test station and be divided into three independent parts, the number of detection station in each part
Amount is odd number, and the bellows series connection in each part is integrated, and both ends are respectively connected to air pump and pressure measuring mechanism, using same
The detection method of sample detects the air pressure change of the bellows in each part respectively, finds out the underproof part of air pressure, then again
The part is divided into three smaller subelements, and is detected using same method, until finding out all be unsatisfactory for
The bellows of air-tightness requirement.
2. the detection method of intelligence bellows air-tightness batch detecting device according to claim 1, it is characterised in that:
The pressure measuring mechanism of the detection device include using transparent material production tube body, tube body it is closed at one end, the other end is set
There is jointing, the circular bulkheads that can be moved axially along tube body, the central axis of circular bulkheads and tube body, circle are equipped in tube body
Tube cavity is divided into two independent chambers by shape partition, is equipped with reset spring in tube body, on the inner sidewall of tube body and partition
On be respectively equipped with the first spring connecting point and second spring tie point, the both ends of reset spring are separately fixed at the connection of the first spring
On point and second spring tie point, the two sides of the outside of tube body are corresponding to be equipped with signal-sending mechanism and signal receiving structure,
Signal receiving structure and signal-sending mechanism are electrically connected with control system respectively.
3. the detection method of intelligence bellows air-tightness batch detecting device according to claim 2, it is characterised in that:
Air pressure change is judged in the step 3, and whether He Ge method is specifically, the two sides of partition are answered by air pressure and reset spring
Cooperation is used, and after the completion of air-pump inflating, partition is located in the intracorporal a certain position of pipe, if in preset time, partition does not have always
Blocking signal transmitting mechanism passes to the signal of signal receiving structure, then illustrates that the pressure change of partition two sides is in allowed band
Interior, i.e. air pressure change is qualified, and bellows meets air-tightness requirement, if in preset time, partition blocking signal transmitter always
Structure passes to the signal of signal receiving structure, then illustrates the pressure change of partition two sides not more than allowed band, i.e. air pressure change
Qualification, bellows are unsatisfactory for air-tightness requirement.
4. the detection method of intelligence bellows air-tightness batch detecting device according to claim 2, it is characterised in that:
The end of the circular bulkheads is fixed with ring-shaped rubber pad；The alert mechanism is LED light group, the quantity of LED light in LED light group
And one-to-one correspondence equal with the quantity of detection station；Relief valve is installed on the pressure measuring mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810690864.9A CN108458844B (en) | 2018-06-28 | 2018-06-28 | A kind of intelligence bellows air-tightness batch detecting device and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810690864.9A CN108458844B (en) | 2018-06-28 | 2018-06-28 | A kind of intelligence bellows air-tightness batch detecting device and detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108458844A CN108458844A (en) | 2018-08-28 |
| CN108458844B true CN108458844B (en) | 2019-09-10 |
Family
ID=63216260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810690864.9A Active CN108458844B (en) | 2018-06-28 | 2018-06-28 | A kind of intelligence bellows air-tightness batch detecting device and detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108458844B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108956061A (en) * | 2018-10-12 | 2018-12-07 | 广州衍瀚软件有限公司 | A kind of battery case air-tightness intelligent checking system and its detection method |
| CN109323825A (en) * | 2018-10-18 | 2019-02-12 | 合肥合茂电子科技有限公司 | A kind of valve detection device |
| CN110160716A (en) * | 2019-06-25 | 2019-08-23 | 安徽南氟化工设备有限公司 | A kind of quick action emergency valve sealing propertytest system |
| CN112146821A (en) * | 2019-06-27 | 2020-12-29 | 深圳市理邦精密仪器股份有限公司 | Gas circuit board gas leakage detection method, device and equipment |
| CN110985896A (en) * | 2019-12-30 | 2020-04-10 | 浙江易斐科技有限公司 | Multichannel pipeline intelligence leak hunting system |
| CN114518204B (en) * | 2022-03-29 | 2023-11-14 | 北京北方华创微电子装备有限公司 | Leak rate detecting system of sealed bellows |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH488147A (en) * | 1968-03-15 | 1970-03-31 | Sulzer Ag | Forced steam generator |
| JPS57113341A (en) * | 1980-12-29 | 1982-07-14 | Hitachi Zosen Corp | Leakage inspection for airtightness of radioactive substance conveying container |
| DE102006039521B4 (en) * | 2006-08-23 | 2009-12-17 | Siemens Ag | Pressure cell for actuating mechanical systems |
| FR2982949A1 (en) * | 2011-11-23 | 2013-05-24 | Diam Bouchage | DEVICE FOR MEASURING PERMEABILITY OF BOTTLE CAPS AND CORRESPONDING METHOD |
| KR20130127270A (en) * | 2012-05-14 | 2013-11-22 | 현대중공업 주식회사 | Leakage tester |
| CN205002932U (en) * | 2015-08-04 | 2016-01-27 | 广东茂化建集团有限公司 | Valvelet door is pressure testing equipment in batches |
| CN205785720U (en) * | 2016-05-25 | 2016-12-07 | 西安中财型材有限责任公司 | A kind of sealing property tester of corrugated pipe sealing ring |
| CN206695954U (en) * | 2017-03-31 | 2017-12-01 | 深圳欣锐科技股份有限公司 | Detection means and system |
-
2018
- 2018-06-28 CN CN201810690864.9A patent/CN108458844B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108458844A (en) | 2018-08-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108458844B (en) | A kind of intelligence bellows air-tightness batch detecting device and detection method | |
| CN204694421U (en) | Valve leak detection proving installation | |
| CN210513587U (en) | Sealing performance detection equipment for insulating gloves | |
| CN104359636A (en) | Tank airtightness detection system | |
| CN209014222U (en) | A kind of anhydrous work seal detection device of gate valve | |
| CN108692892A (en) | A kind of device for detecting airtightness of corrugated tube and detection method | |
| CN104776962B (en) | Valve detection fixture and the valve detecting system with the fixture | |
| CN208872474U (en) | A kind of full-automatic pipe air tightness detection machine | |
| CN209820701U (en) | Valve leakproofness is test fixture in batches | |
| CN110553155B (en) | Drainage pipe leak hunting device for municipal administration | |
| CN206754819U (en) | A kind of natural gas line pressure testing device | |
| CN109341984A (en) | A kind of anhydrous work seal detection device of gate valve and detection method | |
| CN205352630U (en) | Airtight and withstand voltage quick detection device of conformal transducer | |
| CN219757644U (en) | Artificial nose gas tightness detects structure and detection device | |
| CN219348110U (en) | Leak detection device for heat transfer pipe | |
| CN214621630U (en) | Air leakage inspection testing arrangement is used in production of vehicle air conditioner accessory | |
| CN213956701U (en) | Fire-fighting pipeline air tightness detection device | |
| CN211669159U (en) | Gas concentration detects uses calibrating device | |
| CN216207317U (en) | Air tightness testing device | |
| CN217637872U (en) | Air tightness test device | |
| CN217111371U (en) | A sealed detection device for vehicle vent-pipe production | |
| CN219416567U (en) | Air tightness test inflation head | |
| CN220018836U (en) | Spherical graphite production line seals inspection device | |
| CN210442068U (en) | Detection equipment for air tightness of automobile inner tube | |
| CN211527717U (en) | Flowmeter sealing performance detection device adopting lifting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |