CN208653742U - It is a kind of sealing and the testing integrated machine of pulse - Google Patents
It is a kind of sealing and the testing integrated machine of pulse Download PDFInfo
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- CN208653742U CN208653742U CN201821497971.1U CN201821497971U CN208653742U CN 208653742 U CN208653742 U CN 208653742U CN 201821497971 U CN201821497971 U CN 201821497971U CN 208653742 U CN208653742 U CN 208653742U
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Abstract
The utility model discloses a kind of sealing and the testing integrated machines of pulse, by gas source manifold, pneumatic booster system, pulse pressure testing system, forced quarantine system, pressure relief system, calculate console and PLC control system composition, gas source manifold includes passing through the sequentially connected gas source shut-off valve of gas source intake line, filter, pressure regulator valve, oil sprayer, oil sprayer is connected with the first gas source pipeline, second gas source pipeline, first gas source pipe road has been sequentially connected with electric proportional pressure-reducing valve, gas source by-passing valve, pneumatic booster system, forced quarantine system, pulse pressure testing system and high-pressure output port, high-pressure output port connects pressure relief system, gas source solenoid valve is parallel on gas source by-passing valve, forced quarantine system, pulse pressure testing system, pressure relief system connects the second gas source pipeline, second gas source pipeline passes through air accumulator, described in check valve connection First gas source pipeline can efficiently accomplish hydraulic pressure or oil pressure sealing test and high-frequency impulse test, have many advantages, such as to be simple and safe to use reliable.
Description
Technical field
The utility model relates to oil liquid pressure and water hydraulic equipment testing field, and in particular to it is a kind of sealing and pulse survey
Try all-in-one machine.
Background technique
In order to guarantee the safety and reliability of hydraulic device, all kinds of pipelines, pressure vessel, valve body, sebific duct, sensor and
Various connectors require to be sealed and testing fatigue can just be used after by test stone test passes.Pulse at present
Test is mostly realized using valve control technology, is needed to pump not stop and start and is stopped, and it is not high to control precision.
Therefore, a kind of simple, safe and reliable, long service life is designed, various pipes, pressure vessel, valve body, glue are able to satisfy
The equipment of pipe, sensor and the sealing of various connectors and pulse test, it is especially heavy for entire hydraulic hydraulic equipment testing field
It wants.
Utility model content
The utility model in view of the above-mentioned problems of the prior art, provide it is a kind of sealing and pulse test all-in-one machine,
The sealing and pulse test all-in-one machine can realize leakage test and pulse testing, and test operation is simple, and survey can be effectively reduced and be pressed into
This, improves manometric efficiency.
In order to achieve the above purpose, the utility model uses following technical measures:
A kind of sealing and the testing integrated machine of pulse, by gas source manifold, pneumatic booster system, pulse pressure testing system, strong
Shielding system, pressure relief system, calculating console and PLC control system composition processed, the gas source manifold include passing through gas source to input
The sequentially connected gas source shut-off valve of pipeline, filter, pressure regulator valve, oil sprayer, the gas outlet of the oil sprayer is connected with the first gas
Source capsule road, the second gas source pipeline, first gas source pipe road have been sequentially connected with electric proportional pressure-reducing valve, gas source by-passing valve, described
Pneumatic booster system, the forced quarantine system, the pulse pressure testing system and high-pressure output port, the high-pressure output port connect
The pressure relief system is connect, gas source solenoid valve, the forced quarantine system, pulse pressure testing system are parallel on the gas source by-passing valve
System, pressure relief system connect the second gas source pipeline, and the second gas source pipeline passes through air accumulator, check valve connection described first
Gas source pipeline.
Preferably, the pneumatic booster system includes the air-driven hydraulic pump connecting with the gas source by-passing valve, the gas
The hydraulic cylinder of hydrodynamic press pump is connected with suction stop valve, and suction stop valve is connected with fuel tank by filter by suction.
Preferably, the forced quarantine system includes for connecting the pneumatic booster system, pulse pressure testing system
First pneumatic stopping valve, the execution cylinder air inlet pipe and execution cylinder escape pipe of first pneumatic stopping valve are connected with first liang
Position five-way electromagnetic valve, the execution cylinder air inlet pipe of first pneumatic stopping valve pass through the first two five-way electromagnetic valve connections
The second gas source pipeline.
Preferably, the pulse pressure testing system includes pneumatic booster, the pressurized cylinder air inlet of the pneumatic booster
Pipe and pressurized cylinder escape pipe are connected with 3 position-5 way solenoid valve, and the 3 position-5 way solenoid valve connects second gas source pipe
Road.
Preferably, the pressure relief system includes manual relief valve, the second pneumatic stopping valve, the manual relief valve and institute
State the output end that the second pneumatic stopping valve is connected in parallel on the pulse pressure testing system, the manual relief valve, the second pneumatic stopping valve
Output end be respectively connected with water tank, the execution cylinder air inlet pipe and execution cylinder escape pipe of second pneumatic stopping valve are connected with
The second two five-way electromagnetic valves, the execution cylinder air inlet pipe of second pneumatic stopping valve pass through the second two five energization magnetic
Valve connects the second gas source pipeline.
Preferably, the gas source intake line is additionally provided with bleed pressure sensor, pressure gauge, the bleed pressure sensing
Device, pressure gauge are mounted between the pressure regulator valve and the oil sprayer.
Preferably, the pneumatic booster connects the high-pressure output port, high pressure is installed at the high-pressure output port
Pressure gauge and high-pressure pressure sensor.
Preferably, the high-pressure output port is equipped with overflow valve.
Preferably, the computer console passes through PLC control system and the pressure regulator valve, electric proportional pressure-reducing valve, gas
Source solenoid valve and the pulse pressure testing system, forced quarantine system, the solenoid valve in pressure relief system are electrical connected.
The utility model has the beneficial effects that:
1, the sealing of the utility model and pulse test all-in-one machine can efficiently accomplish hydraulic pressure or oil pressure sealing test and high frequency
Pulse test, has many advantages, such as to be simple and safe to use reliable, and air-driven hydraulic pump can precisely be arranged by the way that electric proportional pressure-reducing valve is arranged
Pneumatic pressure, to realize hydraulic or oil pressure accurate control, test operation is simple, and survey can be effectively reduced and be pressed into this, improve and survey
Press efficiency.
2, the utility model realizes the isolation of workpiece to be tested by forced quarantine system, can effectively prevent due to check valve
Failure causes the situation of system pressure shakiness to occur.
3, the method that the utility model simplifies traditional pulse test, by controlling the reciprocating motion of pneumatic booster come real
The pulse testing of existing sealing container.
Detailed description of the invention
Fig. 1 is the catenation principle figure of a kind of sealing of the utility model and pulse test all-in-one machine.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The present embodiment is as shown in Figure 1, a kind of sealing and pulse test all-in-one machine, the gas source manifold include defeated by gas source
Enter the sequentially connected gas source shut-off valve 1 of pipeline a, filter 3, pressure regulator valve 4, oil sprayer 6, the gas outlet connection of the oil sprayer 6
Have and has been sequentially connected with electric proportional pressure-reducing valve 7, gas source on the first gas source pipeline b, the second gas source pipeline c, the first gas source pipeline b
By-passing valve 8, the pneumatic booster system, the forced quarantine system, the pulse pressure testing system and high-pressure output port, it is described
High-pressure output port connects the pressure relief system, is parallel with gas source solenoid valve 9, the forced quarantine system on the gas source by-passing valve 8
System, pulse pressure testing system, pressure relief system connect the second gas source pipeline c, the second gas source pipeline c by air accumulator 22,
Check valve 21 connects the first gas source pipeline b.The gas source shut-off valve 1 is defeated by the gas source intake line a connection gas source
Entrance 1, for providing test gas source for the sealing and pulse test all-in-one machine, the high-pressure output port is to be tested for connecting
Workpiece, the air accumulator 22 are used to provide bailout gas for forced quarantine system, pulse pressure testing system, pressure relief system.
In more detail, the pneumatic booster system includes the air-driven hydraulic pump 10 connecting with the gas source by-passing valve 8, described
The hydraulic cylinder of air-driven hydraulic pump 10 is connected with suction stop valve 11, and suction stop valve 11 is connected with oil by filter by suction 30
Case.The electricity proportional pressure-reducing valve 7 is connected with the gas source by-passing valve 8 and gas source solenoid valve 9 respectively, the gas source by-passing valve 8 and
It is connected after 9 parallel connection of gas source solenoid valve with air-driven hydraulic pump 10, the electricity proportional pressure-reducing valve 7 is adjustable to be input to air-driven hydraulic pump 10
Air pressure level, the variation of the pump chamber of the air-driven hydraulic pump 10, so as to increase to air flow pressure default for compression fluid
Pressure is simultaneously transmitted to pulse pressure testing system.
In the present embodiment, the pulse pressure testing system includes pneumatic booster 14, the pressurization of the pneumatic booster 14
Cylinder intake pipe and pressurized cylinder escape pipe are connected with 3 position-5 way solenoid valve 24, the pressurized cylinder of the pneumatic booster 14 into
Tracheae connects the second gas source pipeline c by the 3 position-5 way solenoid valve 24.The second gas source pipeline c is described pneumatic
The pressurized cylinder of the pneumatic booster 14 of booster 14 supplies, and the 3 position-5 way solenoid valve 24 controls the pneumatic booster 14
Pressurized cylinder disengaging gas, it can be achieved that the piston rod of the pneumatic booster 14 link, adjust output pressure work to reach
With, it can be achieved that adjust the output pressure of pulse test, so that the pressure control of high-pressure output port is in pre-set pressure range,
Pressure change when simulation workpiece works treats test piece and carries out pulse pressure testing test, time saving and energy saving.
The forced quarantine system includes for connecting the first of the pneumatic booster system, pulse pressure testing system pneumatic section
Only valve 12, the execution cylinder air inlet pipe and execution cylinder escape pipe of first pneumatic stopping valve 12 be connected with the first two five it is logical
Solenoid valve 23, the execution cylinder air inlet pipe of first pneumatic stopping valve 12 are connected by the first two five-way electromagnetic valves 23
The second gas source pipeline c.The second gas source pipeline c is that the execution cylinder of first pneumatic stopping valve 12 supplies, described
The first two five-way electromagnetic valves 23 control the execution cylinder disengaging gas of first pneumatic stopping valve 12, it can be achieved that first gas
The piston rod linkage of dynamic shut-off valve 12, acts on to reach and be forcibly cut off to high-pressure output port output pressure, can effectively realize by
Work-piece isolation to be tested prevents from leading to the case where testing pressure instability generation due to 21 failure of check valve.
The pressure relief system includes manual relief valve 17, the second pneumatic stopping valve 18, the manual relief valve 17 with it is described
Second pneumatic stopping valve 18 is connected in parallel on the output end of the pulse pressure testing system, the manual pneumatically cut-off of relief valve 17, second
The output end of valve 18 is respectively connected with water tank 19, the execution cylinder air inlet pipe and execution cylinder outlet of second pneumatic stopping valve 18
Pipe is connected with the second two five-way electromagnetic valves 25, and the execution cylinder air inlet pipe of second pneumatic stopping valve 18 passes through described second
Two five-way electromagnetic valves 25 connect the second gas source pipeline c.The second gas source pipeline c is second pneumatic stopping valve 18
Execution cylinder gas supply, the second two five-way electromagnetic valves 25 control the execution cylinder disengaging of first pneumatic stopping valve 12
Gas is, it can be achieved that the piston rod of first pneumatic stopping valve 12 links, to reach adjusting pressure release efficiency effect.
Second pneumatic stopping valve 18 or manual relief valve 17 are opened, the air pressure in the first gas source pipeline b can pass through institute
It states the second pneumatic stopping valve 18 or manual relief valve 17 is discharged to water tank 19, can be realized the first gas source pipeline b pressure release, guarantee the
The pressure of one gas source pipeline b is stablized, and agitates situation by the bubble in observation water tank 19, it can be determined that the sealing of workpiece to be tested
Property.When the leakproofness of workpiece to be tested is impaired, air-flow can generate part leakage by the workpiece to be tested at high-pressure output port,
So that entering the air pressure of pressure relief system reduces, therefore the air-flow being discharged into the water tank 19 can also weaken, so that water tank 19
The interior bubble amount of agitating greatly reduces.
In more detail, the pneumatic booster 14 connects the high-pressure output port, and the high-pressure output port is equipped with overflow
Valve 13 is equipped with high-pressure manometer 15 and high-pressure pressure sensor 16, the high-pressure pressure sensor at the high-pressure output port
16 can measure the pressure at high-pressure output port, and the high-pressure manometer 15 can show the pressure value at high-pressure output port, convenient
Tester's observation.The gas source intake line a is additionally provided with bleed pressure sensor 5, pressure gauge 26, the bleed pressure sensing
Device 5, pressure gauge 26 are mounted between the pressure regulator valve 4 and the oil sprayer 6, and gas source input port 1 is for accessing test gas source, institute
Pressure in gas source intake line a can be measured by stating bleed pressure sensor 5, and pressure gauge 26 can be shown in gas source intake line a
Pressure value.
In addition, the computer console by PLC control system and the electric proportional pressure-reducing valve 7, gas source solenoid valve 9 with
And the solenoid valve in the pulse pressure testing system, forced quarantine system, pressure relief system is electrical connected.In more detail, the calculating
Machine console is electrically connected the electric proportional pressure-reducing valve 7, gas source solenoid valve 9, overflow valve 13, pressure regulator valve by PLC control system
4,3 position-5 way solenoid valve 24, the second two five-way electromagnetic valves 25 and the first two five-way electromagnetic valves 23.The bleed pressure
Sensor 5, high-pressure pressure sensor 16 communicate to connect the computer console, bleed pressure sensor 5, high-pressure sensing
The pressure value measured is transmitted to the computer console by device 16, and computer console can be by the pressure value received and pre-
If pressure value is relatively or whether the pressure value that receives of judgement is in pre-set pressure range, and according to comparison result control PLC
Control system drives 3 position-5 way solenoid valve 24, the second two five-way electromagnetic valves 25 and the first two five-way electromagnetic valves 23 logical
It is disconnected, to realize the operation of control pulse pressure testing system, forced quarantine system, pressure relief system.Prestored in computer console
There are preset pressure value or pre-set pressure range, if receiving the pressure value from bleed pressure sensor 5 less than preset pressure
It is worth or less than the minimum pressure values in pre-set pressure range, then sends driving instruction to PLC control system, system is controlled by PLC
System driving pressure regulator valve 4, increases the air pressure in gas source intake line a；If receiving the pressure value from bleed pressure sensor 5
Greater than preset pressure value or greater than the maximum pressure value in pre-set pressure range, then pressure regulator valve 4 is driven by PLC control system,
Decline the air pressure in gas source intake line a, so that it is guaranteed that the pressure for being input to pneumatic booster system is constant.Similarly, computer
If console receives the pressure value from high-pressure pressure sensor 16 less than preset pressure value or is less than pre-set pressure range
Interior minimum pressure values then send driving instruction to PLC control system, drive electric proportional pressure-reducing valve 7, gas by PLC control system
Source solenoid valve 9 increases the air pressure in the first gas source pipeline b, pneumatic to rise so as to adjust the pressure for being input to pneumatic booster system
Pressure system carries out the air-flow of input to be delivered to pulse pressure testing system after compression boosting and export to high-pressure output port；Conversely, if connecing
The pressure value from high-pressure pressure sensor 16 is received greater than preset pressure value or greater than the maximum pressure in pre-set pressure range
Force value then sends driving instruction to PLC control system, drives overflow valve 13 by PLC control system, makes the air pressure of high-pressure output port
Decline.
Working principle:
Workpiece to be tested is connected to high-pressure output port, so that pulse pressure testing system and pressure relief system connection, it will be to be tested
Pressure model when design of pressure when workpiece works is the preset pressure value of high-pressure output port or workpiece to be tested works
Enclose the pre-set pressure range for being set as high-pressure output port, then setting be input to gas source intake line a preset pressure value or
Pressure limit.
When test, the access of gas source input port 1 test gas source, test gas source is sequentially through gas source shut-off valve 1, filter 3, tune
Pressure valve 4, oil sprayer 6, electric proportional pressure-reducing valve 7, gas source by-passing valve 8 are input to air-driven hydraulic pump 10, and the air-driven hydraulic pump 10 will
The gas source of input compresses so that being transported to the pressure rise of high-pressure output port, and the pneumatic booster 14 is in 3 position-5 way solenoid valve
Under 24 control, drives the piston of pneumatic booster 14 to push and rise by inflation/deflation, make the gas for being transported to high-pressure output port
Pressure increases, declines, so realization closed loop, so that being applied to the pneumatic floating of workpiece to be tested and remaining at preset pressure value
Or in pre-set pressure range, the output hydraulic pressure of automatic adjustment pulse pressure testing system is realized；The air-flow exported from high-pressure output port
Pressure relief system is flow to by workpiece to be tested, and the second two five-way electromagnetic valves 25 drive the opening and closing of the second pneumatic stopping valve 18, realize
Pressure release and adjusting pressure release rate can be by manually opened manual when the second pneumatic stopping valve 18 is due to power failure, damage or maintenance
Relief valve 17 realizes system decompression.
When 21 failure of check valve, the gas in air accumulator 22 can not add to the first gas source pipe by check valve 21
In the b of road, PLC control system controls the first two five-way electromagnetic valves 23 and the piston of the first pneumatic stopping valve 12 is driven to push, truncation
First gas source pipeline b gas supply prevents system pressure shakiness in the first gas source pipeline b from causing test not accurate.
Design is scientific and reasonable for the utility model, versatile, and manufacturing cost is low, and rapid pressure is easy to operate and safety is steady
Air-driven hydraulic pump Pneumatic pressure can be precisely arranged by the way that electric proportional pressure-reducing valve is arranged, to realize hydraulic or oil pressure in qualitative height
Accurate control, test operation is simple, and survey can be effectively reduced and be pressed into this, improve manometric efficiency, it is high can to verify various pressure limits
The compressive resistance and leakage test of pressure valve, and the functional component of conventional pressure test is simplified, testing efficiency is high, structure letter
It is single, convenient for sealing and the manufacture of the testing integrated machine of pulse, reduce sealing and the manufacture of the testing integrated machine of pulse
Cost.
It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined
Assert that the specific implementation of the utility model is only limited to these instructions.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, should all regard
To belong to the protection scope of the utility model.
Claims (9)
1. a kind of sealing and the testing integrated machine of pulse by gas source manifold, pneumatic booster system, pulse pressure testing system, are forced
Shielding system, pressure relief system, computer console and PLC control system composition, which is characterized in that the gas source manifold includes logical
Cross the sequentially connected gas source shut-off valve (1) of gas source intake line (a), filter (3), pressure regulator valve (4), oil sprayer (6), the oil
The gas outlet of day with fog (6) is connected with the first gas source pipeline (b), the second gas source pipeline (c), suitable on the first gas source pipeline (b)
The secondary electric proportional pressure-reducing valve (7), gas source by-passing valve (8), the pneumatic booster system, the forced quarantine system, described of being connected with
Pulse pressure testing system and high-pressure output port, the high-pressure output port connect the pressure relief system, on the gas source by-passing valve (8)
It is parallel with gas source solenoid valve (9), the forced quarantine system, pulse pressure testing system, pressure relief system connect second gas source pipe
Road (c), the second gas source pipeline (c) connect the first gas source pipeline (b) by air accumulator (22), check valve (21).
2. a kind of sealing according to claim 1 and the testing integrated machine of pulse, which is characterized in that the pneumatic boosting
System includes the air-driven hydraulic pump (10) connecting with the gas source by-passing valve (8), and the hydraulic cylinder of the air-driven hydraulic pump (10) connects
It is connected to suction stop valve (11), suction stop valve (11) is connected with fuel tank by filter by suction (20).
3. a kind of sealing according to claim 1 and the testing integrated machine of pulse, which is characterized in that the forced quarantine
System includes the first pneumatic stopping valve (12) for connecting the pneumatic booster system, pulse pressure testing system, first gas
The execution cylinder air inlet pipe and execution cylinder escape pipe of dynamic shut-off valve (12) are connected with the first two five-way electromagnetic valves (23), described
The execution cylinder air inlet pipe of first pneumatic stopping valve (12) passes through the first two five-way electromagnetic valves (23) connection described second
Gas source pipeline (c).
4. a kind of sealing according to claim 1 and the testing integrated machine of pulse, which is characterized in that the pulse pressure testing
System includes pneumatic booster (14), and the pressurized cylinder air inlet pipe of the pneumatic booster (14) is connected with pressurized cylinder escape pipe
Have 3 position-5 way solenoid valve (24), the 3 position-5 way solenoid valve (24) connects the second gas source pipeline (c).
5. a kind of sealing according to claim 1 and the testing integrated machine of pulse, which is characterized in that the pressure relief system
Including manual relief valve (17), the second pneumatic stopping valve (18), the manual relief valve (17) and second pneumatic stopping valve
(18) be connected in parallel on the output end of the pulse pressure testing system, the manual relief valve (17), the second pneumatic stopping valve (18) it is defeated
Outlet is respectively connected with water tank (19), and the execution cylinder air inlet pipe and execution cylinder escape pipe of second pneumatic stopping valve (18) connect
The second two five-way electromagnetic valves (25) are connected to, the execution cylinder air inlet pipe of second pneumatic stopping valve (18) passes through described second
Two five-way electromagnetic valves (25) connect the second gas source pipeline (c).
6. a kind of sealing according to claim 1 and the testing integrated machine of pulse, which is characterized in that the gas source input
Pipeline (a) is additionally provided with bleed pressure sensor (5), pressure gauge (26), the bleed pressure sensor (5), pressure gauge (26) peace
Between the pressure regulator valve (4) and the oil sprayer (6).
7. a kind of sealing according to claim 4 and the testing integrated machine of pulse, which is characterized in that the Pneumatic booster
Device (14) connects the high-pressure output port, is equipped with high-pressure manometer (15) and high-pressure pressure sensor at the high-pressure output port
(16)。
8. a kind of sealing according to claim 1 or 4 and the testing integrated machine of pulse, which is characterized in that the high pressure
Delivery outlet is equipped with overflow valve.
9. a kind of sealing according to claim 1 and the testing integrated machine of pulse, which is characterized in that the computer control
Platform processed passes through PLC control system and the pressure regulator valve (4), electric proportional pressure-reducing valve (7), gas source solenoid valve (9) and the pulse
Pressure testing system, forced quarantine system, the solenoid valve in pressure relief system are electrical connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821497971.1U CN208653742U (en) | 2018-09-13 | 2018-09-13 | It is a kind of sealing and the testing integrated machine of pulse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821497971.1U CN208653742U (en) | 2018-09-13 | 2018-09-13 | It is a kind of sealing and the testing integrated machine of pulse |
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| Publication Number | Publication Date |
|---|---|
| CN208653742U true CN208653742U (en) | 2019-03-26 |
Family
ID=65792794
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| CN201821497971.1U Active CN208653742U (en) | 2018-09-13 | 2018-09-13 | It is a kind of sealing and the testing integrated machine of pulse |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110749403A (en) * | 2019-10-13 | 2020-02-04 | 江苏远望仪器集团有限公司 | Dynamic pressure water tightness test device for sensor under all working conditions |
| CN112096740A (en) * | 2020-09-14 | 2020-12-18 | 华海清科股份有限公司 | Air supply system for air bearing and grinding tool |
| CN112816334A (en) * | 2020-12-31 | 2021-05-18 | 四川太平洋药业有限责任公司 | Infusion bag sealing performance detection instrument and detection method |
| CN114623981A (en) * | 2022-03-23 | 2022-06-14 | 成都理工大学 | Static and dynamic sealing test method based on machine vision |
| CN115617085A (en) * | 2022-12-19 | 2023-01-17 | 星宇电子(宁波)有限公司 | High-pressure gas pressure control valve |
-
2018
- 2018-09-13 CN CN201821497971.1U patent/CN208653742U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110749403A (en) * | 2019-10-13 | 2020-02-04 | 江苏远望仪器集团有限公司 | Dynamic pressure water tightness test device for sensor under all working conditions |
| CN110749403B (en) * | 2019-10-13 | 2024-05-03 | 江苏远望仪器集团有限公司 | Sensor full-working-condition dynamic pressure water tightness test device |
| CN112096740A (en) * | 2020-09-14 | 2020-12-18 | 华海清科股份有限公司 | Air supply system for air bearing and grinding tool |
| CN112816334A (en) * | 2020-12-31 | 2021-05-18 | 四川太平洋药业有限责任公司 | Infusion bag sealing performance detection instrument and detection method |
| CN112816334B (en) * | 2020-12-31 | 2022-11-11 | 四川太平洋药业有限责任公司 | Infusion bag sealing performance detection instrument and detection method |
| CN114623981A (en) * | 2022-03-23 | 2022-06-14 | 成都理工大学 | Static and dynamic sealing test method based on machine vision |
| CN115617085A (en) * | 2022-12-19 | 2023-01-17 | 星宇电子(宁波)有限公司 | High-pressure gas pressure control valve |
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