CN209214858U - A kind of fixture and detection device - Google Patents
A kind of fixture and detection device Download PDFInfo
- Publication number
- CN209214858U CN209214858U CN201821720081.2U CN201821720081U CN209214858U CN 209214858 U CN209214858 U CN 209214858U CN 201821720081 U CN201821720081 U CN 201821720081U CN 209214858 U CN209214858 U CN 209214858U
- Authority
- CN
- China
- Prior art keywords
- product
- detected
- opening
- clamping element
- briquetting
- 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.)
- Expired - Fee Related
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 22
- 238000012360 testing method Methods 0.000 claims abstract description 21
- 239000011148 porous material Substances 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 11
- 208000002925 dental caries Diseases 0.000 abstract 1
- 239000000047 product Substances 0.000 description 84
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Abstract
The utility model relates to waterproof detection technique field, a kind of fixture and detection device are specifically disclosed.Fixture includes bottom plate and the location structure, the clamping element that are installed on bottom plate；Location structure is for treating testing product positioning, including the postive stop baffle and/or positioning column around product to be detected setting；The quantity of clamping element is no less than the open amount of product to be detected, is at least three, is arranged at the side and upper surface of product to be detected, each clamping element includes axle clamp and the briquetting that is connected with the end of axle clamp；Clamping element is provided at corresponding opening, opening is sealed while clamping the end face of product opening to be detected, air cavity is equipped in the briquetting of one of clamping element, position at briquetting corresponding opening is equipped with the intercommunicating pore of connection opening and air cavity, and briquetting is additionally provided at least two connection air cavitys and external stomata.The utility model additionally provides a kind of detection device, and fixture and detection device can detecte the product with opening, and structure is simple, easy to operate.
Description
Technical field
The utility model relates to waterproof detection technique fields, and in particular to a kind of fixture and detection device.
Background technique
In production and processing, need to carry out some parts Water-proof air-tight detection, certain parts are the shell of inner hollow
Structure, but opening is provided on shell, the presence of opening makes the hollow inside of shell be communicated with the outside, and in detection zero
When the Water-proof air-tight detection of part, air pressure method of testing is generally used, closed environment is needed to form at this time just and can be carried out detection, therefore
Design one can either realize part clamping position, and be capable of forming the fixture of closed environment required for Water-proof air-tight detects
Just become problem in urgent need to solve.
Utility model content
In order to solve the above-mentioned technical problem, the utility model embodiment provides a kind of fixture and detection device, can either
It realizes the clamping position of product to be detected, and is capable of forming closed environment required for Water-proof air-tight detects.
A kind of fixture, including air-leakage test is carried out for clamping product to be detected, the product to be detected is shell knot
Structure, inside are equipped with hollow area, and the hollow area is equipped with the opening being communicated with the outside, which is characterized in that the fixture includes bottom
Plate and the location structure being installed on the bottom plate, clamping element；
The location structure is positioned for treating testing product, including the limit around the product setting to be detected
Baffle and/or positioning column；
The quantity of the clamping element be more than or equal to product to be detected open amount, be at least three, setting to
At the side and upper surface of testing product, each clamping element includes axle clamp and the pressure that is connected with the end of the axle clamp
Block；
It is provided with the clamping element in the opening of correspondence product to be detected, clamps the end face of product opening to be detected
The opening is sealed simultaneously, in the clamping element being arranged at corresponding opening, in the briquetting of one of them clamping element
Equipped with air cavity, the position at the briquetting corresponding opening is equipped with the intercommunicating pore for being connected to the opening and the air cavity, the briquetting
It is additionally provided at least two connections air cavity and external stomata.
As a kind of optional embodiment of the utility model, the location structure only includes postive stop baffle, it is described to
At least three sides of testing product are equipped with the postive stop baffle.
Further, the side of the postive stop baffle is fixedly connected with the bottom plate, and the other side protrudes from the bottom plate, institute
It states postive stop baffle and contacts the medial surface of product to be detected and be adapted with the shape of the product to be detected.
Further, part of postive stop baffle is corresponding with the L-type angle of the product to be detected, the limiting block
The medial surface of plate is L-type, and positioning is realized at the L-type angle for product to be detected described in clamping.
As second of the utility model optional embodiment, the location structure only includes positioning column, the positioning
Column includes at least three and is not arranged on the same straight line, and the positioning column passes through the via hole of the product to be detected, with realization pair
The positioning of the product to be detected.
Optionally, the end face that the briquetting of the clamping element corresponds to the opening of the product to be detected is equipped with elastic sealing element.
Further, pipe fitting is additionally provided at each stomata of the air cavity.
Further, the position that the bottom plate corresponds to the product to be detected is provided with the microscope carrier for protruding from the bottom plate.
A kind of detection device, including pressure gauge, air pump and fixture above-mentioned；
The air pump is connect with a port sealing, for being filled with air to the interiors of products to be detected or inciting somebody to action
It is vacuumized；
The pressure gauge is connect with port sealing described in another, for detecting the air pressure of the interiors of products to be detected.
Compared with prior art, fixture provided by the embodiment of the utility model and detection device have the advantages that
The fixture and detection device treat testing product and realize that positioning clamps, while again can be by the opening of product to be detected
Seal up the sealed environment to form air-leakage test needs；The fixture and structure of the detecting device are simple simultaneously, easy to detect fast
It is prompt.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the product to be detected of the utility model；
Fig. 2 is that the fixture of the utility model does not place the structural schematic diagram of product to be detected；
Fig. 3 is that the fixture of the utility model is placed and clamps the structural schematic diagram of product to be detected.
Description of symbols:
100- fixture, 10- bottom plate, 200- product to be detected, 201- opening, 202- via hole, 30- location structure, 31- limit
Baffle, 32- positioning column, 40- microscope carrier, 50- clamping element, 51- axle clamp, 52- briquetting, 521- intercommunicating pore, 53- elastic sealing element, 6-
Stomata, 7- column, 8- crossbeam.
Specific embodiment
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.
It should be noted that in the description of the present invention, it should be understood that the word "upper" used, "lower",
" top ", " lower section ", etc. instructions orientation or positional relationship be orientation based on the figure or positional relationship, be only for
Convenient for description the utility model and simplify description, rather than it is specific to indicate or imply that signified device or element must have
Orientation, a specific orientation construction and operation, therefore should not be understood as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise specific regulation and limitation, term " peace
Dress ", " being connected ", " connection " shall be understood in a broad sense, such as may be a fixed connection, and may be a detachable connection or one
Connect to body；It can be mechanical connection；Can be directly connected to or two elements inside connection.For this field
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Utility model is described more fully below with reference to relevant drawings for the ease of understanding the utility model,.
The preferred embodiment of the utility model is given in attached drawing.But the utility model is realized in many different forms, not
It is limited to embodiment described herein.On the contrary, purpose of providing these embodiments is makes disclosure to the utility model
Understanding it is more thorough and comprehensive.
Referring to Fig. 1, Fig. 1 is the schematic perspective view of the product to be detected of the utility model；On the one hand, the present embodiment
In product to be detected 200 be conventional shape shell structure, inside be equipped with hollow area, the hollow area be equipped be communicated with the outside
Logical opening 201, since the presence of opening 201 is needed when needing to treat the progress Water-proof air-tight detection of testing product 200
Opening 201 is sealed up, to form closed environment required for waterproof detects, on the other hand, the production to be detected in the present embodiment
Product 200 include there are six surface, and the opposite surface of two of them is parallel to each other, by two it is parallel to each other in a surface place
In on the fixture, needing that other five faces are positioned and clamped, it is placed in the surface on fixture and being in contact and is known as
Bottom surface is known as side with four surfaces of plane perpendicular, and the face parallel with bottom surface is known as upper surface.
Fig. 2 and Fig. 3 are please referred to, Fig. 2 is that the fixture of the utility model is placed with and clamps the structural schematic diagram of product to be detected,
Fig. 3 is that the fixture of the utility model does not place the structural schematic diagram of product to be detected；One is provided in the utility model embodiment
Kind fixture 100, including bottom plate 10 and the location structure 30 being installed on the bottom plate 10, clamping element 50；
The location structure 30 is positioned for treating testing product 200, including is set around the product 200 to be detected
The postive stop baffle 31 and/or positioning column 32 set；
Specifically, in the present embodiment, the location structure 30 includes the limit being arranged around the product 200 to be detected
Baffle 31 and positioning column 32；
Since 200 shell of product to be detected is equipped with the lug of protrusion, via hole 202, all via holes 202 are equipped on lug
Axis be parallel with each other and with four sides, therefore can be realized and be positioned with Design Orientation column 32, further, positioning column 32
Mounted perpendicular on the bottom plate 10, quantity be less than or equal to product 200 to be detected 202 quantity of via hole, and position with to
202 position of via hole of testing product 200 is corresponding, so that the positioning column 32 is passed through corresponding via hole 202, realization is treated
The positioning of testing product 200.The side of the postive stop baffle 31 is fixedly connected with the bottom plate 10, and the other side protrudes from the bottom
Plate 10, the medial surface that the postive stop baffle 31 contacts product 200 to be detected are adapted with the shape of the product 200 to be detected.
Specifically, in the present embodiment, product 200 to be detected has and do not have lug on an apex angle, postive stop baffle 31 can be with
It is designed as L-type, the apex angle of the not lug for product to be detected 200 described in clamping is to realize the positioning to the apex angle；Together
When can certain sides be arranged medial surface be straight line postive stop baffle 31, the side for treating testing product 200 is positioned.
Product 200 to be detected is equipped with lug on other three apex angles, and via hole 202 is equipped on each lug, leads to
It crosses positioning column 32 and treats the positioning of testing product 200, it is when putting product 200 to be detected into fixture, product 200 to be detected is not convex
The apex angle of ear corresponds to the postive stop baffle 31 of L-type, and via hole 202 is aligned and passes through corresponding positioning column 32, in the present embodiment, setting
There are two two via holes 202 on positioning column 32, with product 200 to be detected in diagonally opposing corner to correspond, and treats testing product
200 realize positioning.
In further embodiments, the location structure 30 omits postive stop baffle 31 and only includes positioning column 32, when to be detected
202 more than three of via hole of product 200 and not point-blank when, corresponding positioning column 32, the positioning column can be set
32 pass through the via hole of the product 200 to be detected, to realize the positioning to the product 200 to be detected.
In some other embodiment, product 200 to be detected does not have via hole 202, and the location structure 30 can be omitted fixed
Position column 32 only includes postive stop baffle 31, and postive stop baffle 32 is arranged around at least three sides of product 200 to be detected, will be to be detected
Product 200 is placed in the interior zone that postive stop baffle 32 is surrounded, and is offseted with product to be detected 200 with postive stop baffle 32 and not
Energy is mobile preferably.
Further, the side of the postive stop baffle 31 is fixedly connected with the bottom plate 10, and the other side protrudes from the bottom
Plate 10, the medial surface that the postive stop baffle 31 contacts product 200 to be detected are adapted with the shape of the product 200 to be detected.
Optionally, part of postive stop baffle is corresponding with the L-type angle of the product to be detected, the postive stop baffle
Medial surface be L-type, for product to be detected described in clamping L-type angle realize positioning.
With continued reference to Fig. 2 and Fig. 3, the quantity of the clamping element 50 is more than or equal to the opening number of product 200 to be detected
Amount, be at least three, be arranged at the side and upper surface of product 200 to be detected, each clamping element 50 include axle clamp 51 with
And the briquetting 52 being connected with the end of the axle clamp 51；
It is provided with the clamping element 50 in the opening of correspondence product 200 to be detected, product 200 to be detected is clamped and is open
End face while by the opening seal；
In the present embodiment, clamping element 50 around product 200 to be detected five surfaces (including four sides with one on
Surface) setting, 51 straight line of the axle clamp push-and-pull direction of each clamping element 50 is perpendicularly oriented to the surface to be clamped of clamping element 50.
It can be according to product 200 to be detected when determining which surface needs to be arranged clamping element 50 in five surfaces
Open condition and aperture position determine, have opening surface be arranged clamping element 50, the surface that other are not open is according to feelings
Condition is selectively arranged.
Specifically, two opposite flanks due to product 200 to be detected are equipped with opening, can respectively be set in the two sides
A clamping element 50 is set for clamping the side, the axle clamp 51 of the clamping element 50 is fixed on the bottom plate 10, axle clamp
51 push-and-pull direction is perpendicularly oriented to the side to be clamped, and is parallel to bottom plate 10, and briquetting 52 is under the promotion of axle clamp 51 close to institute
The side to be clamped, and compression is contacted, while also to seal up the opening 201 on side, therefore briquetting 52 is needed and opened
201 positions of mouth are corresponding, and have to be larger than opening 201, to be covered.In order to imitate the sealing of briquetting 52 and opening 201
Fruit is more preferable, is wrapped with elastic sealing element 53 in one end bread of 52 contact openings 201 of briquetting, elastic sealing element 53 can be by rubber
Glue, silica gel elastomeric material are made, and elastic sealing element 53 can also play buffer function, protect the opening of product 200 to be detected.
In the present embodiment, since the briquetting 52 of clamping element 50 is higher than the bottom plate 10, in order to make the briquetting of clamping element 50
52 is corresponding with the aperture position of the product 200 to be detected, and the position of the corresponding product 200 to be detected of bottom plate 10 is provided with protrusion
In the microscope carrier 40 of bottom plate 10.
In the present embodiment, there are two clamping element 50 is already provided in four sides, other sides can not have to setting,
The clamping element 50 for being directed toward upper surface is equipped in upper surface, since the push-and-pull direction of axle clamp 51 is perpendicular to the upper surface to be clamped, because
This is also perpendicularly to bottom plate 10, in order to fix axle clamp 51, the column 7 of bottom plate 10 is provided perpendicular on bottom plate 10, is set on column 7
The crossbeam 8 parallel with bottom plate 10 is set, axle clamp 51 is arranged in crossbeam 8, the briquetting 52 is close under the promotion of axle clamp 51 and presses
The upper surface of tight product 200 to be detected to be clamped.
In some other embodiments, clamping element 50 not only three, it can be set more.
In the clamping element 50 being arranged at corresponding opening, gas is equipped in the briquetting 52 of one of them clamping element 50
Chamber, the position at 52 corresponding opening 201 of briquetting are equipped with 200 opening 201 for being connected to the product to be detected and the gas
The intercommunicating pore 521 of chamber is equipped at least two connections air cavity and external stomata 6 in the briquetting 52.
Specifically, in the present embodiment, being set altogether there are two stomata 6, one of stomata 6 is connected with external air pump, uses
In vacuumizing or inflating to the inside of product 200 to be detected to change the air pressure inside its, another stomata 6 and pressure gauge are sealed
Connection, for detecting the air pressure inside product 200 to be detected, the gas of product 200 to be detected is judged according to the situation of change of air pressure
Close implementations.
Further, in the present embodiment, pipe fitting is additionally provided at two stomatas 6 of the air cavity (not indicate in figure
Out), for being tightly connected with external air pump or pressure gauge.
The utility model embodiment additionally provide a kind of detection device, including pressure gauge (not indicated in figure), air pump with
And fixture 100 above-mentioned；
The air pump and stomata 6 are tightly connected, for being filled with air inside the product 200 to be detected or will
It is vacuumized；
The pressure gauge and another stomata 6 are tightly connected, for detecting the air pressure inside the product to be detected 200.
In order to better understand the utility model, to the fixture or detection device testing principle and process in the present embodiment
It carries out as described below:
By being filled with gas in air pump thereto a stomata 6 or vacuumizing, in this process by true in pressure gauge
Whether the air pressure inside fixed product 200 to be detected reaches the numerical value that oneself is needed, and stops after reaching certain air pressure and keeps close
Envelope state observes the situation of change of air pressure, if air pressure is basically stable at a number in longer period of time from pressure gauge
In value, there is no large change, illustrate do not have to exchange with external gas inside product 200 to be detected, product to be detected
200 air-tightness is good；If air pressure varies widely, illustrate that gas friendship has occurred with outside in 200 inside of product to be detected
Stream, the air-tightness of product 200 to be detected are poor.
Compared with the prior art, fixture provided by the embodiment of the utility model and detection device have the advantages that
The fixture 100 and detection device treat testing product 200 and realize that positioning clamps, while again can be by product to be detected
200 opening 201 seals up the sealed environment to form air-leakage test needs；The fixture 100 and structure of the detecting device simultaneously
Simply, easy to detect quick.
The present invention is not limited to the above embodiments, and the above is preferred embodiments of the present invention, the reality
It applies example and is merely to illustrate the utility model rather than limitation the scope of the utility model, it is noted that for the art
Those of ordinary skill for, without departing from the principle of this utility model, some improvements and modifications can also be made, this
The improvement and modification of a little equivalent forms also should be regarded as including within the protection scope of the present utility model.
Claims (9)
1. a kind of fixture carries out air-leakage test for clamping product to be detected, the product to be detected is shell structure, internal
Equipped with hollow area, the hollow area is equipped with the opening being communicated with the outside, which is characterized in that the fixture includes bottom plate and dress
Location structure, the clamping element being located on the bottom plate；
The location structure is positioned for treating testing product, including the postive stop baffle around the product setting to be detected
And/or positioning column；
The quantity of the clamping element is more than or equal to the open amount of product to be detected, is at least three, is arranged to be detected
At the side and upper surface of product, each clamping element includes axle clamp and the briquetting that is connected with the end of the axle clamp；
It is provided with the clamping element in the opening of correspondence product to be detected, while clamping the end face of product opening to be detected
The opening is sealed, in the clamping element being arranged at corresponding opening, is equipped in the briquetting of one of them clamping element
Air cavity, the position at the briquetting corresponding opening are equipped with the intercommunicating pore for being connected to the opening and the air cavity, and the briquetting is also set
There are at least two connections air cavity and external stomata.
2. fixture according to claim 1, which is characterized in that the location structure only includes postive stop baffle, it is described to
At least three sides of testing product are equipped with the postive stop baffle.
3. fixture according to claim 2, which is characterized in that the side of the postive stop baffle and the fixed company of the bottom plate
It connects, the other side protrudes from the bottom plate, and the postive stop baffle contacts the medial surface and the product to be detected of product to be detected
Shape is adapted.
4. fixture according to claim 3, which is characterized in that part of postive stop baffle and the product to be detected
L-type angle it is corresponding, the medial surface of the postive stop baffle is L-type, and it is fixed that the L-type angle for product to be detected described in clamping is realized
Position.
5. fixture according to claim 1, which is characterized in that the location structure only includes positioning column, the positioning column
It including at least three and is not arranged on the same straight line, the positioning column passes through the via hole of the product to be detected, to realize to institute
State the positioning of product to be detected.
6. fixture according to any one of claims 1 to 5, which is characterized in that the briquetting of the clamping element it is corresponding it is described to
The end face of the opening of testing product is equipped with elastic sealing element.
7. fixture according to claim 6, which is characterized in that be additionally provided with pipe fitting at each stomata of the air cavity.
8. fixture according to claim 7, which is characterized in that the bottom plate corresponds to the position setting of the product to be detected
There is the microscope carrier for protruding from the bottom plate.
9. a kind of detection device, which is characterized in that including pressure gauge, air pump and the described in any item folders of claim 1 to 8
Tool；
The air pump is connect with a port sealing, for being filled with air to the interiors of products to be detected or being taken out
Vacuum；
The pressure gauge is connect with port sealing described in another, for detecting the air pressure of the interiors of products to be detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821720081.2U CN209214858U (en) | 2018-10-23 | 2018-10-23 | A kind of fixture and detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821720081.2U CN209214858U (en) | 2018-10-23 | 2018-10-23 | A kind of fixture and detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209214858U true CN209214858U (en) | 2019-08-06 |
Family
ID=67456617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821720081.2U Expired - Fee Related CN209214858U (en) | 2018-10-23 | 2018-10-23 | A kind of fixture and detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209214858U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542518A (en) * | 2019-08-29 | 2019-12-06 | 歌尔股份有限公司 | Method and equipment for testing sealing performance of adhesive assembly |
-
2018
- 2018-10-23 CN CN201821720081.2U patent/CN209214858U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542518A (en) * | 2019-08-29 | 2019-12-06 | 歌尔股份有限公司 | Method and equipment for testing sealing performance of adhesive assembly |
| CN110542518B (en) * | 2019-08-29 | 2022-01-04 | 歌尔股份有限公司 | Method and equipment for testing sealing performance of adhesive assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2017166837A1 (en) | Online seal inspection apparatus, multi-section sealed cavity machining device and method | |
| CN209214858U (en) | A kind of fixture and detection device | |
| CN211626850U (en) | Ball valve detection equipment | |
| CN109738129A (en) | The method for detecting conduit tube component air-tightness | |
| CN206670874U (en) | A kind of air-tightness detection device | |
| CN206038251U (en) | A leak test anchor clamps for exhaust manifold | |
| CN207318010U (en) | A kind of full-automatic ball valve gas measurement equipment | |
| CN204008046U (en) | Lithium battery fluid injection air-tightness detection device | |
| CN116511082A (en) | Online detection equipment and method for baking battery cells | |
| CN206876349U (en) | A kind of leakage test plugging device | |
| CN206891669U (en) | A kind of automotive air intake pipe air tightness detection equipment | |
| CN207432717U (en) | A kind of silica gel mould detection device | |
| CN212180195U (en) | Hydraulic pipeline air tightness detection device | |
| CN215178449U (en) | Auxiliary device for detecting air tightness of motor | |
| CN208847410U (en) | Overhead welding air tightness detection system | |
| CN107063577A (en) | A kind of leakage test plugging device | |
| CN207585673U (en) | Canister vent impedance and test device for air tightness | |
| CN109084940A (en) | A kind of Portable valve leakage detection apparatus | |
| CN205748818U (en) | Detection device | |
| CN207147732U (en) | A kind of washing machine sewer pipe air-tightness detection device | |
| CN216559571U (en) | Hemodialyzer airtightness detection device | |
| CN108956026A (en) | Overhead welding air tightness detection system | |
| CN214951978U (en) | Fire-fighting pipeline air tightness detection device | |
| CN217878218U (en) | Positive and negative pressure air tightness test system | |
| CN215448356U (en) | Sealing performance detection device for sealing joint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190806 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |