CN208596014U - It is a kind of to push vacuum leakage detection apparatus manually - Google Patents
It is a kind of to push vacuum leakage detection apparatus manually Download PDFInfo
- Publication number
- CN208596014U CN208596014U CN201820908068.3U CN201820908068U CN208596014U CN 208596014 U CN208596014 U CN 208596014U CN 201820908068 U CN201820908068 U CN 201820908068U CN 208596014 U CN208596014 U CN 208596014U
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- outer barrel
- inner cylinder
- bottom end
- sealing cover
- sealing
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- 238000001514 detection method Methods 0.000 title claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 76
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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Abstract
Vacuum leakage detection apparatus is pushed manually the utility model relates to a kind of, the outer barrel of opening is equipped with including both ends, and the inner cylinder being vertically arranged is equipped in the outer barrel, piston is equipped in the inner cylinder, the bottom end of piston rod is fixedly connected at the top of the piston；The top of the outer barrel is equipped with the sealing cover for sealing the outer barrel top and the inner cylinder top；The sealing cover is equipped with exhaust check valve；The side wall of the inner cylinder is equipped with connection check valve；The bottom end of the inner cylinder is connected to by connecting pipe with outer barrel exterior space；The side wall of the outer barrel is equipped with the communicating pipe for being connected to exterior space, is equipped with valve the communicating pipe, the communicating pipe is equipped with pressure gauge.The beneficial effects of the utility model are: can carry out slightly inspecting leakage by random samples, avoid re-starting assembly because of sealing problem after mounting；It can ensure that sealing against for vacuum chuck and position to be hunted leak during vacuumizing, operate more convenient simple.
Description
Technical field
The utility model relates to vacuum sensing technology technical fields, more particularly to a kind of vacuum that pushes manually to hunt leak
Device.
Background technique
Vacuum leak hunting has become the indispensable branch of Vacuum Field.By the accumulation of decades, people are
A series of effective methods are summed up, some leakage detecting instruments also appear on the market in succession.Leak detector according to its testing principle not
Together, air pressure leak detector, halogen leak detector, ammonia leak detector, helium mass spectrometer leak detector etc. can be divided into.Although these leak-hunting principles are respectively not
It is identical, but they have a common ground, i.e., detected pieces must be one can closed container.
General step is to first pass through vacuum pipe to connect detected pieces and leak detector, constitutes an entirety, then root
According to the principle of leak detector, material effect is leaked in detected pieces with showing, the signal intensity passed through on leak detector judges " leak source ".For that
Be not a bit can closed container sealing element, have some portable leakage detection apparatus in the prior art, generally filled using piston
The one end set is connect with vacuum chuck, and vacuum chuck is overlayed on place to be detected, then will be true by the air suction function of piston apparatus
Air in suction disk siphons away, and judges whether " leak source " occur by the air pressure change in detection vacuum chuck.It is this just
The formula leakage detection apparatus of taking has the disadvantage in that piston apparatus uses drawing and pulling type air-discharging, the moving direction of piston rod in pumping process
For far from vacuum chuck direction so that needed during pumping additionally by vacuum chuck press at leakage position to be checked, and
And may result in vacuum chuck during being evacuated and be detached from position to be detected, influence the process of leak detection.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of structure is simple, taken out by way of pressing piston rod
Vacuum ensures sealing against for vacuum chuck and position to be hunted leak, improves the validity of leak detection during pressing, easy to operate
Simply.
The technical solution that the utility model solves above-mentioned technical problem is as follows: a kind of to push vacuum leak detection dress manually
It sets, the outer barrel of opening is equipped with including both ends, the outer barrel is vertically arranged, and the bottom end seal of the outer barrel is connected with vacuum
Sucker；The inner cylinder being vertically arranged is equipped in the outer barrel, the outer wall of the bottom end closure of the inner cylinder, the inner cylinder is logical
The inner wall for crossing connection component and the outer barrel is tightly connected；Piston, the side of the piston and institute are equipped in the inner cylinder
The inner wall for stating inner cylinder is tightly connected, and the bottom end of piston rod, the bottom end of the piston and institute are fixedly connected at the top of the piston
It states and is equipped with compressed spring between the bottom of inner cylinder intracoelomic cavity；The top of the outer barrel is equipped with for sealing the outer barrel top
And the sealing cover on the inner cylinder top；The top of the piston rod is upward through and stretches out sealing cover, the piston rod with
The seal cap sealing connection；The sealing cover is equipped with the row for being connected to the inner cylinder and the sealing cover upper space
Port, the exhaust outlet is interior to be equipped with exhaust check valve；The top of the side wall of the inner cylinder is equipped with for being connected to the inner cylinder
The connecting hole of inner cavity and the outer cylinder intracoelomic cavity, the connecting hole is interior to be equipped with air guide direction to enter institute by the outer cylinder intracoelomic cavity
State the connection check valve of inner cylinder intracoelomic cavity；The bottom end of the inner cylinder is connected by connecting pipe and the outer barrel exterior space
It is logical；The side wall of the outer barrel is equipped with the communicating pipe for being connected to exterior space, is equipped with valve the communicating pipe, described
The communicating pipe between valve and the outer barrel is equipped with the pressure gauge for monitoring the air pressure in the outer cylinder intracoelomic cavity.
The beneficial effects of the utility model are: can be detected to the sealing element for being not closed container, without separately putting
Enter sealing element, it is time saving and energy saving；In instrument and equipment assembling process, the present invention can carry out slightly inspecting leakage by random samples, avoid after mounting because close
Envelope problem and re-start assembly；In instrument and equipment assembling process, it can carry out slightly inspecting leakage by random samples, avoid after mounting because of sealing problem
And re-start assembly；It can ensure that sealing against for vacuum chuck and position to be hunted leak during vacuumizing, operation is more
It is convenient and simple.
Based on the above technical solution, the utility model can also do following improvement.
Further, the bottom end of the outer barrel is connected through a screw thread with the vacuum chuck.
Beneficial effect using above-mentioned further scheme is: the bottom end of outer barrel is connected through a screw thread with vacuum chuck, side
Just it dismantles and replaces, can be hunted leak by replacing different size of vacuum chuck realization to the position in different size region.
Further, gasket A is equipped between the bottom end of the outer barrel and the vacuum chuck.
Beneficial effect using above-mentioned further scheme is: the setting of gasket A can ensure that outer barrel and vacuum chuck it
Between sealed connection.
Further, it is connected between the side of the sealing cover and the inner wall of the upper end of the outer barrel by thread seal,
The bottom end of the sealing cover is abutted with the end sealing of the inner cylinder.
Beneficial effect using above-mentioned further scheme is: sealing cover is connect by screw thread with outer barrel, dismantles installation side
Just.
Further, the bottom end of the sealing cover is equipped with sealing ring, and the bottom end of the sealing ring is equipped with seal groove, the inner cylinder
The end sealing of body is located in the seal groove.
Beneficial effect using above-mentioned further scheme is: the setting of sealing ring and seal groove can ensure that the top of inner cylinder
Sealed connection between end and sealing cover.
Further, the upper surface of the piston is equipped with connection screw thread slot, the bottom end of the piston rod and the connection spiral shell
Groove is threadedly coupled.
Beneficial effect using above-mentioned further scheme is: piston rod is connect by screw thread with piston, easy for assemble or unload,
It after sealing cover is covered again, is inserted into connection screw thread slot after the top of piston rod is passed through sealing cover, then rotating piston rod is
The installation of piston rod can be achieved.
Further, the connection component includes the supporting table being arranged on the outer barrel inner wall and is arranged described interior
Support arm on the outer wall of cylinder, the support arm are placed in the supporting table.
Beneficial effect using above-mentioned further scheme is: being supported by supporting table to support arm, can pass through support
The clamping action of platform and sealing cover, it is ensured that the sealed connection between the bottom end of sealing cover and the top of inner cylinder.
Further, the sealing cover is equipped with for the through-hole that passes through of top for the piston rod, the piston rod and
Gasket B is equipped between the inner wall of the through-hole.
Beneficial effect using above-mentioned further scheme is: the setting of gasket B can ensure that between piston rod and sealing cover
Sealed connection.
Further, the top of the piston rod is equipped with handle.
Beneficial effect using above-mentioned further scheme is: the setting of handle can facilitate pressing piston rod.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
In attached drawing, parts list represented by the reference numerals are as follows:
1, outer barrel, 2, vacuum chuck, 3, inner cylinder, 4, connection component, 4-1, supporting table, 4-2, support arm, 5, work
Plug, 6, piston rod, 7, compressed spring, 8, sealing cover, 9, exhaust outlet, 10, exhaust check valve, 11, connecting hole, 12, connection it is unidirectional
Valve, 13, connecting pipe, 14, communicating pipe, 15, valve, 16, pressure gauge, 17, gasket A, 18, sealing ring, 19, seal groove, 20,
Connection screw thread slot, 21, through-hole, 22, gasket B, 23, handle.
Specific embodiment
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical
It is novel, it is not intended to limit the scope of the utility model.
As shown in Figure 1, the embodiments of the present invention include the outer barrel 1 that both ends are equipped with opening, in the present embodiment, institute
The inner cavity for stating outer barrel 1 is cylindrical cavity；The outer barrel 1 is vertically arranged, and the bottom end seal of the outer barrel 1 is connected with very
Suction disk 2；The inner cylinder 3 being vertically arranged, the bottom end closure of the inner cylinder 3, the inner cylinder 3 are equipped in the outer barrel 1
Outer wall be tightly connected by the inner wall of connection component 4 and the outer barrel 1, the inner cylinder 3 stabilization is located at the outer cylinder
In body 1；Piston 5 is equipped in the inner cylinder 3, the inner wall sealed connection of the side of the piston 5 and the inner cylinder 3 is described
The top of piston 5 is fixedly connected with the bottom end of piston rod 6, sets between the bottom of 3 inner cavity of bottom end and the inner cylinder of the piston 5
There is compressed spring 7, one end of the compressed spring 7 abuts the bottom end of the piston 5, and the other end abuts 3 inner cavity of inner cylinder
Bottom；The top of the outer barrel 1 is equipped with for the close of 3 top of 1 top of outer barrel and the inner cylinder described in sealing cover 8
Capping 8, sealing cover 8 seals cover the top of the outer barrel 1 and the top of the inner cylinder 3 simultaneously；The piston rod 6
Top is upward through and stretches out sealing cover 8, and the piston rod 6 is tightly connected with the sealing cover 8, in order to ensure 6 He of piston rod
The leakproofness connected between sealing cover 8, the sealing cover 8 are equipped with the through-hole 21 passed through for the top for the piston rod 6,
Gasket B22 is equipped between the piston rod 6 and the inner wall of the through-hole 21.
In the present embodiment, the sealing cover 8 is equipped with empty for being connected to the inner cylinder 3 and 8 top of the sealing cover
Between exhaust outlet 9, be equipped with exhaust check valve 10, the restriction airflow direction of exhaust check valve 10 in the exhaust outlet 9 are as follows: so that
Air is only arranged to above sealing cover 8 out of inner cylinder 3, and the air for limiting 8 top of sealing cover enters from exhaust check valve 10
Into inner cylinder 3；The top of the side wall of the inner cylinder 3 is equipped with for being connected to 3 inner cavity of inner cylinder and the outer barrel 1
The connecting hole 11 of inner cavity, the interior air guide direction that is equipped with of the connecting hole 11 is to enter the inner cylinder 3 by 1 inner cavity of outer barrel
The connection check valve 12 of inner cavity；The bottom end of the inner cylinder 3 is connected to by connecting pipe 13 with 1 exterior space of outer barrel；
The side wall of the outer barrel 1 is equipped with the communicating pipe 14 for being connected to exterior space, the communicating pipe 14 is equipped with valve
15, which can be manually opened and closes, and is equipped with the communicating pipe 14 between the valve 15 and the outer barrel 1
For monitoring the pressure gauge 16 of air pressure intracavitary in the outer barrel 1.
The utility model preferred embodiment are as follows: the bottom end of the outer barrel 1 and the vacuum chuck 2 are connected by screw thread
It connects.The bottom end of outer barrel 1 is connected through a screw thread with vacuum chuck 2, easy to disassemble and replacement, can be different size of by replacing
The realization of vacuum chuck 2 hunts leak to the position in different size region.
In order to realize the leakproofness in use process, it is equipped between the bottom end and the vacuum chuck 2 of the outer barrel 1
Gasket A17, it is ensured that the sealed connection between outer barrel 1 and vacuum chuck 2.The bottom end of the sealing cover 8 is equipped with sealing ring 18,
The bottom end of the sealing ring 18 is equipped with seal groove 19, and the end sealing of the inner cylinder 3 is located in the seal groove 19, it is ensured that interior
Sealed connection between the top and sealing cover 8 of cylinder 3.
It is connected between the inner wall of the upper end of the side and outer barrel 1 of the sealing cover 8 by thread seal, it is described close
The bottom end of capping 8 is abutted with the end sealing of the inner cylinder 3, and sealing cover 8 is connect by screw thread with outer barrel 1, disassembly installation
It is convenient.The upper surface of the piston 5 is equipped with connection screw thread slot 20, the bottom end of the piston rod 6 and the connection screw thread slot 20
It is threadedly coupled.Piston rod 6 is connect by screw thread with piston 5, easy for assemble or unload, then by after the capping of sealing cover 8, by piston rod 6
Top pass through sealing cover 8 after be inserted into connection screw thread slot 20, then rotating piston rod 6 can be realized the installation of piston rod 6.
The connection component 4 includes the supporting table 4-1 being arranged on 1 inner wall of outer barrel and is arranged in the inner cylinder
Support arm 4-2 on the outer wall of body 3, the support arm 4-2 are placed on the supporting table 4-1.By supporting table 4-1 to support
Arm 4-2 is supported, and can pass through the clamping action of supporting table 4-1 and sealing cover 8, it is ensured that the bottom end of sealing cover 8 and inner cylinder 3
Top between sealed connection.The top of the piston rod 6 is equipped with handle 23.The setting of handle 23 can facilitate pressing piston rod
6。
Working principle: when needing to detect, valve 15 is closed, vacuum chuck 2 is adsorbed on face to be detected, then press handle
On the one hand hand 23 further promotes the sealed connection of vacuum chuck 2 and face to be detected, so that vacuum chuck 2, outer barrel 1 is interior
Confined space is formed between chamber and face to be detected；On the other hand, during squeeze grip 23, piston rod 6 with piston 5 to
The direction of vacuum chuck 2 is mobile, so that the upper space of piston 5 forms negative pressure, drives the air in outer barrel 1 unidirectional from connection
Valve 12 enters in inner cylinder 3, so that space forms negative pressure between the inner cavity and face to be detected of vacuum chuck 2, outer barrel 1；This
When, handle 23 is unclamped, under the action of compressed spring 7, piston 5 resets, during reset, due to connection check valve 12
Limitation, air can not enter in outer barrel 1 from inner cylinder 3, but outside is discharged from exhaust check valve 10.When in outer barrel 1
After forming negative pressure, the air pressure observed on pressure gauge 16 is shown, but as time increases, the pressure that air gauge is shown is gradually increased
When, illustrate that place to be detected has " leak source ", if the air pressure that air gauge is shown does not change, without " leak source ".It is to be checked it is complete after, opening valve
Door 15, air enters in outer barrel 1 from communicating pipe 14, then detaches vacuum chuck 2.
The utility model structure is simple, can detect to the sealing element for being not closed container, close without being separately put into
Sealing is time saving and energy saving；In instrument and equipment assembling process, the present invention can carry out slightly inspecting leakage by random samples, avoid after mounting because sealing is asked
It inscribes and re-starts assembly；In instrument and equipment assembling process, it can carry out slightly inspecting leakage by random samples, avoid after mounting due to sealing problem
Re-start assembly；It can ensure that sealing against for vacuum chuck 2 and position to be hunted leak during vacuumizing, operate more square
Just simple.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (9)
1. a kind of push vacuum leakage detection apparatus manually, which is characterized in that the outer barrel (1) of opening is equipped with including both ends,
The outer barrel (1) is vertically arranged, and the bottom end seal of the outer barrel (1) is connected with vacuum chuck (2)；The outer barrel (1)
It is interior equipped with the inner cylinder being vertically arranged (3), the outer wall of the bottom end closure of the inner cylinder (3), the inner cylinder (3) passes through connection
Component (4) and the inner wall of the outer barrel (1) are tightly connected；Piston (5) are equipped in the inner cylinder (3), the piston (5)
The inner wall of side and the inner cylinder (3) is tightly connected, and the bottom end of piston rod (6), institute are fixedly connected at the top of the piston (5)
It states and is equipped with compressed spring (7) between the bottom end of piston (5) and the bottom of the inner cylinder (3) inner cavity；The top of the outer barrel (1)
End is equipped with the sealing cover (8) for sealing the outer barrel (1) top and the inner cylinder (3) top；The piston rod (6)
Top be upward through and stretch out sealing cover (8), the piston rod (6) and the sealing cover (8) are tightly connected；The sealing cover
(8) exhaust outlet (9) for being connected to the inner cylinder (3) and the sealing cover (8) upper space, the exhaust outlet are equipped with
(9) exhaust check valve (10) are equipped in；The top of the side wall of the inner cylinder (3) is equipped with for being connected in the inner cylinder (3)
The connecting hole (11) of chamber and the outer barrel (1) inner cavity, the interior air guide direction that is equipped with of the connecting hole (11) is by the outer barrel
(1) inner cavity enters the connection check valve (12) of the inner cylinder (3) inner cavity；The bottom end of the inner cylinder (3) passes through connecting pipe
(13) it is connected to the outer barrel (1) exterior space；The side wall of the outer barrel (1) is equipped with for being connected to exterior space
Communicating pipe (14), the communicating pipe (14) is equipped with valve (15), described between the valve (15) and the outer barrel (1)
Communicating pipe (14) is equipped with the pressure gauge (16) for monitoring air pressure intracavitary in the outer barrel (1).
2. a kind of pushing vacuum leakage detection apparatus manually according to claim 1, which is characterized in that the outer barrel
(1) bottom end is connected through a screw thread with the vacuum chuck (2).
3. a kind of pushing vacuum leakage detection apparatus manually according to claim 2, which is characterized in that the outer barrel
(1) gasket A (17) are equipped between bottom end and the vacuum chuck (2).
4. a kind of pushing vacuum leakage detection apparatus manually according to any one of claims 1 to 3, which is characterized in that
The side of the sealing cover (8) is connect with the inner wall of the upper end of the outer barrel (1) by thread seal, the sealing cover (8)
Bottom end abutted with the end sealing of the inner cylinder (3).
5. a kind of pushing vacuum leakage detection apparatus manually according to claim 4, which is characterized in that the sealing cover
(8) bottom end is equipped with sealing ring (18), and the bottom end of the sealing ring (18) is equipped with seal groove (19), the top of the inner cylinder (3)
End sealing is located in the seal groove (19).
6. a kind of pushing vacuum leakage detection apparatus manually according to any one of claims 1 to 3, which is characterized in that
The upper surface of the piston (5) is equipped with connection screw thread slot (20), the bottom end of the piston rod (6) and the connection screw thread slot
(20) it is threadedly coupled.
7. a kind of pushing vacuum leakage detection apparatus manually according to any one of claims 1 to 3, which is characterized in that
The connection component (4) includes the supporting table (4-1) being arranged on the outer barrel (1) inner wall and is arranged in the inner cylinder
(3) support arm (4-2) on outer wall, the support arm (4-2) are placed on the supporting table (4-1).
8. a kind of pushing vacuum leakage detection apparatus manually according to any one of claims 1 to 3, which is characterized in that
The sealing cover (8) is equipped with the through-hole (21) passed through for the top for the piston rod (6), the piston rod (6) and institute
It states and is equipped with gasket B (22) between the inner wall of through-hole (21).
9. a kind of pushing vacuum leakage detection apparatus manually according to any one of claims 1 to 3, which is characterized in that
The top of the piston rod (6) is equipped with handle (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820908068.3U CN208596014U (en) | 2018-06-12 | 2018-06-12 | It is a kind of to push vacuum leakage detection apparatus manually |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820908068.3U CN208596014U (en) | 2018-06-12 | 2018-06-12 | It is a kind of to push vacuum leakage detection apparatus manually |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208596014U true CN208596014U (en) | 2019-03-12 |
Family
ID=65601153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820908068.3U Expired - Fee Related CN208596014U (en) | 2018-06-12 | 2018-06-12 | It is a kind of to push vacuum leakage detection apparatus manually |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208596014U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082041A (en) * | 2019-05-10 | 2019-08-02 | 河南省绿博能源设备有限公司 | Fire extinguisher air tight test device |
| CN110082045A (en) * | 2019-05-31 | 2019-08-02 | 中国原子能科学研究院 | The auxiliary mould fixture of sealing propertytest for cartridge |
| CN113720547A (en) * | 2021-08-19 | 2021-11-30 | 深圳市卓宝科技股份有限公司 | Waterproof layer leakage detection method |
| CN114018491A (en) * | 2021-11-09 | 2022-02-08 | 浙江永贵电器股份有限公司 | Method for detecting sealing performance of oil pressure shock absorber |
| CN114323496A (en) * | 2022-01-31 | 2022-04-12 | 湖南赛智科技有限公司 | Leak detection device and leak detection method |
| CN120211500A (en) * | 2025-05-28 | 2025-06-27 | 福建建工集团有限责任公司 | A glass curtain wall auxiliary installation device |
-
2018
- 2018-06-12 CN CN201820908068.3U patent/CN208596014U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082041A (en) * | 2019-05-10 | 2019-08-02 | 河南省绿博能源设备有限公司 | Fire extinguisher air tight test device |
| CN110082041B (en) * | 2019-05-10 | 2024-02-23 | 河南省绿博能源设备有限公司 | Fire extinguisher air tightness inspection device |
| CN110082045A (en) * | 2019-05-31 | 2019-08-02 | 中国原子能科学研究院 | The auxiliary mould fixture of sealing propertytest for cartridge |
| CN110082045B (en) * | 2019-05-31 | 2023-09-29 | 中国原子能科学研究院 | Auxiliary fixture for sealing testing of cylindrical components |
| CN113720547A (en) * | 2021-08-19 | 2021-11-30 | 深圳市卓宝科技股份有限公司 | Waterproof layer leakage detection method |
| CN113720547B (en) * | 2021-08-19 | 2024-04-30 | 深圳市卓宝科技股份有限公司 | Waterproof layer leakage detection method |
| CN114018491A (en) * | 2021-11-09 | 2022-02-08 | 浙江永贵电器股份有限公司 | Method for detecting sealing performance of oil pressure shock absorber |
| CN114018491B (en) * | 2021-11-09 | 2023-08-29 | 浙江永贵电器股份有限公司 | Oil pressure shock absorber tightness detection method |
| CN114323496A (en) * | 2022-01-31 | 2022-04-12 | 湖南赛智科技有限公司 | Leak detection device and leak detection method |
| CN114323496B (en) * | 2022-01-31 | 2025-04-18 | 湖南赛智科技有限公司 | Leak detection device and leak detection method |
| CN120211500A (en) * | 2025-05-28 | 2025-06-27 | 福建建工集团有限责任公司 | A glass curtain wall auxiliary installation device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190312 Termination date: 20200612 |
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| CF01 | Termination of patent right due to non-payment of annual fee |