CN110243694A - One kind is flexible coupling pressure resistant testing device and its pressure testing method - Google Patents
One kind is flexible coupling pressure resistant testing device and its pressure testing method Download PDFInfo
- Publication number
- CN110243694A CN110243694A CN201910656758.3A CN201910656758A CN110243694A CN 110243694 A CN110243694 A CN 110243694A CN 201910656758 A CN201910656758 A CN 201910656758A CN 110243694 A CN110243694 A CN 110243694A
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- soft connection
- supporting rack
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- 238000012360 testing method Methods 0.000 title claims abstract description 38
- 230000008878 coupling Effects 0.000 title claims abstract description 35
- 238000010168 coupling process Methods 0.000 title claims abstract description 35
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 35
- 230000001681 protective effect Effects 0.000 claims abstract description 11
- 229920001971 elastomer Polymers 0.000 claims description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 239000000126 substance Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0044—Pneumatic means
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
It is flexible coupling pressure resistant testing device and its pressure testing method the invention discloses one kind, is related to mechanical and chemical equipment technical field, including rail set, mobile holder device, soft connection device, protective cover and pressure adjusting unit；Mobile holder device is movably disposed at the upper end of rail set；Mobile holder device includes two supporting rack components and several pull rods, and the upper end of rail set is symmetrically arranged in two supporting rack components, and is connected between two supporting rack components by several pull rods；Soft connection device is fixed between two supporting rack components by several pull rods, and protective cover is set in the outside of soft connection device；The side of rail set is arranged in pressure adjusting unit, and pressure adjusting unit is connect with soft connection device.Have the characteristics that strong flexibility, dismounting and change are convenient, highly-safe.
Description
Technical field
The present invention relates to mechanical and chemical equipment technical field more particularly to one kind be flexible coupling pressure resistant testing device and
Its pressure testing method.
Background technique
In industrial production technology field, the interface of many equipment and equipment, which need to be used, to be flexible coupling.Usually be flexible coupling master
Have nonmetallic and two kinds of metal.It is nonmetallic and in the majority with silicone rubber material, it is usually used in low pressure operating condition (pressure is less than 0.1MPa).
Metal is flexible coupling often in the majority with stainless steel material, is usually used in high pressure operating condition (pressure be greater than 0.1MPa).It is flexible coupling either at present
Nonmetallic or metal material, without easy reliable finished product pressure resistant testing device.This is much for being flexible coupling for the manufacturing
Pressure working condition needs more thick materials not have an explicit data support, and most of designer only designs by rule of thumb, this there is one
Determine security risk.
Summary of the invention
It is flexible coupling pressure resistant testing device and its pressure testing method the purpose of the present invention is to provide one kind, for solving above-mentioned skill
Art problem.
The technical solution adopted by the invention is as follows:
One kind is flexible coupling pressure resistant testing device, including rail set, mobile holder device, soft connection device, protective cover and
Pressure adjusting unit；
The mobile holder device is movably disposed at the upper end of the rail set；
The mobile holder device includes two supporting rack components and several pull rods, and the two supporting rack components are symmetrically arranged
In the upper end of the rail set, and pass through several pull rod connections between the two supporting rack components；
The soft connection device is fixed between the two supporting rack components by several pull rods, the protection enclosure
It is located at the outside of the soft connection device；
The side of the rail set, and the pressure adjusting unit and the soft company is arranged in the pressure adjusting unit
Connection device connection.
Preferably, each supporting rack component includes:
The upper end of the rail set is arranged in supporting rack, the supporting rack；
Outrigger plate, the outrigger plate are located at the side of the supporting rack；
Rubber pad, the rubber pad is arranged on the outrigger plate, and the rubber pad is located at the outrigger plate far from institute
State the side of supporting rack, wherein one end of each pull rod is run through a rubber pad and is connect with an outrigger plate,
The other end of each pull rod runs through another rubber pad and connect with another outrigger plate, wherein the soft company
One end of connection device is connect with wherein one rubber seal, the other end of the soft connection device and another rubber pad
It is tightly connected.
As a further preference, the rail set includes symmetrically arranged two channel steel, the upper end of each channel steel
Several long holes are uniformly equipped with, the lower end of each channel steel passes through expansion bolt and connect with ground；
Each supporting rack is separately positioned on the upper end of two channel steels.
Preferably, the pressure adjusting unit includes tracheae, air compressor machine, the first thread straight-through, double-head inner thread pipe, pressure
Power table, the first ball valve, pressure regulator valve, branch pipe and the second ball valve, one end of the tracheae by first thread straight-through with it is described
Soft connection device connection, the other end of the tracheae are connect with the air compressor machine, on the tracheae extremely by one end of the tracheae
The other end of the tracheae is successively arranged the pressure gauge, the branch pipe, first ball valve and the pressure regulator valve, wherein institute
It states branch pipe to be connected to the tracheae, the branch pipe is equipped with second ball valve, and the pressure gauge passes through the double-head inner thread
Pipe is connect with the tracheae.
It as a further preference, further include check valve, the tracheae is equipped with the check valve, and the check valve is located at
Between the pressure regulator valve and the air compressor machine.
It as a further preference, further include the triple valve for being in T-shape, the double-head inner thread pipe passes through the triple valve
It is connect with the tracheae.
As a further preference, further include muffler, the muffler is installed on second ball valve.
As a further preference, further include it is logical outside double thread, the pressure regulator valve by lead to outside the double thread with it is described
Tracheae connection.
A kind of pressure testing method for the pressure resistant testing device that is flexible coupling, the pressure testing method include:
S1, closing first ball valve and second ball valve, the pressure regulator valve are in close state；
S2, the starting air compressor machine, when the air compressor machine build the pressure to operating pressure be first pressure value when, open described the
One ball valve, and the operating pressure is adjusted to by second pressure value by the pressure regulator valve, then observed on the pressure gauge again
Pressure value, when the pressure of the inside of the soft connection device is under second pressure state of value, then pressure maintaining 3min, simultaneously
And observe the state of the pressure value situation on the pressure gauge and the soft connection device；
S3, the operating pressure is adjusted to by third pressure value by the pressure regulator valve, then observes the pressure gauge again
On pressure value, when the pressure of the inside of the soft connection device is under third pressure state of value, then pressure maintaining 3min, together
When and observe the state of the pressure value situation on the pressure gauge and the soft connection device；
S4, operating pressure is adjusted to by the 4th pressure value by the pressure regulator valve, is then observed on the pressure gauge again
Pressure value, when the pressure of the inside of the soft connection device is under P3 state, then pressure maintaining 10min, while and observing institute
State the state of the pressure value situation and the soft connection device on pressure gauge；
S5, the air compressor machine and first ball valve are first closed, turns off second ball valve, be flexible coupling dress described in emptying
Pressure in setting.
Above-mentioned technical proposal have the following advantages that or the utility model has the advantages that
In the present invention, mobile holder device relative orbit device is detachable, and mobile holder device itself can dismantle peace
Dress, have stronger flexibility, can according to the soft connection device to be tested of different length and bore realize quickly assembling, effectively into
Row voltage-withstand test；And the mode that pressure mode takes substep to carry out is surveyed, the pressure-resistant performance of soft connection device was not only effectively tested out, but also protect
Demonstrate,prove the safety of voltage-withstand test.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of pressure resistant testing device of being flexible coupling in the present invention；
Fig. 2 is the perspective view of pressure resistant testing device of being flexible coupling in the present invention；
Fig. 3 is the perspective view of mobile holder device in the present invention；
Fig. 4 is the perspective view of middle orbit device of the present invention；
Fig. 5 is the structural schematic diagram of pressure adjusting unit in the present invention.
In figure: 1, mobile holder device；101, supporting rack；102, outrigger plate；103, rubber pad；104, pull rod；2, soft company
Connection device；3, protective cover；4, pressure adjusting unit；401, tracheae；402, air compressor machine；403, the first thread straight-through；404, double end
Riffled tube；405, pressure gauge；406, the first ball valve；407, pressure regulator valve；408, check valve；409, triple valve；410, muffler；
411, logical outside double thread；412, the second thread straight-through；413, branch pipe；414, the second ball valve；5, channel steel；6, long hole.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples, but not as the limitation of the invention.
Fig. 1 is the main view of pressure resistant testing device of being flexible coupling in the present invention；Fig. 2 is the voltage-withstand test dress that is flexible coupling in the present invention
The perspective view set, Fig. 3 are the perspective views of mobile holder device in the present invention, and Fig. 4 is the perspective view of middle orbit device of the present invention, figure
5 be the structural schematic diagram of pressure adjusting unit in the present invention.Referring to fig. 1 to fig. 5, a kind of preferred embodiment is shown,
The one kind shown is flexible coupling pressure resistant testing device, comprising: rail set, mobile holder device 1, soft connection device 2, protective cover 3
With pressure adjusting unit 4.
Mobile holder device 1 is movably disposed at the upper end of rail set.
Mobile holder device 1 includes two supporting rack components and several pull rods 104, and two supporting rack components are symmetrically arranged in-orbit
The upper end of road device, and connected between two supporting rack components by several pull rods 104.
Soft connection device 2 is fixed between two supporting rack components by several pull rods 104, and protective cover 3, which is set in, to be flexible coupling
The outside of device 2.Protective cover 3 is not fully sealed, and is equipped in the side of protective cover 3 for observing soft connection device 2
Observation panel.
The side of rail set is arranged in pressure adjusting unit 4, and pressure adjusting unit 4 is connect with soft connection device 2.This
In embodiment, mobile holder device 1 is fixedly connected by fixing bolt with rail set, and protective cover 3 can be to avoid testing
Since high pressure effect makes soft connection device 2 burst the injury caused to personnel in journey, play the role of security protection.
Further, as a kind of preferable embodiment, each supporting rack component includes:
The upper end of rail set is arranged in supporting rack 101, supporting rack 101.
Outrigger plate 102, outrigger plate 102 are located at the side of supporting rack 101.
Rubber pad 103, rubber pad 103 is arranged on outrigger plate 102, and rubber pad 103 is located at outrigger plate 102 far from supporting leg
The side of frame 101, wherein one end of each pull rod 104 is run through a rubber pad 103 and connect with an outrigger plate 102, Mei Yila
The other end of bar 104 runs through another rubber pad 103 and connect with another outrigger plate 102.Wherein, one end of soft connection device 2
It is tightly connected with a wherein rubber pad 103, the other end of soft connection device 2 and another rubber pad 103 are tightly connected.The present embodiment
In, as shown in figure 3, outrigger plate 102 is arranged in the inside of mobile holder device 1, supporting rack 101 is H-type structure, and supporting rack
101 stabilizer blade is connect with a wherein channel steel 5, another stabilizer blade of supporting rack 101 is connect with another channel steel 5.Supporting rack
It 101, is dismountable connection between outrigger plate 102, rubber pad 103 and connecting rod 104, it can be achieved that fast quick-detach and replacement.Branch
Leg support 101 can move on rail set, and applicable different length, different bore are flexible coupling test.
Further, as a kind of preferable embodiment, rail set includes symmetrically arranged two channel steel 5, each channel steel 5
Upper end be uniformly equipped with several long holes 6, the lower end of each channel steel 5 passes through expansion bolt and connect with ground.
Further, as a kind of preferable embodiment, each supporting rack 101 is separately positioned on the upper end of two channel steels 5.Such as
Shown in Fig. 2 and Fig. 4, the long hole 6 on channel steel 5 is in bar shaped, and long hole 6 is arranged along the length direction of channel steel 5, and long hole 6 is used as
The hole that supporting rack 101 is connect with channel steel 5.
Further, as a kind of preferable embodiment, pressure adjusting unit 4 includes tracheae 401, air compressor machine 402, first
Thread straight-through 403, double-head inner thread pipe 404, pressure gauge 405, the first ball valve 406, pressure regulator valve 407, branch pipe 413 and the second ball valve
414.One end of tracheae 401 is connect by the first thread straight-through 403 with soft connection device 2, the other end and air compressor machine of tracheae 401
402 connections are successively arranged pressure gauge 405, branch pipe 413, the by the other end of one end to the tracheae 401 of tracheae 401 on tracheae 401
One ball valve 406 and pressure regulator valve 407.Wherein, branch pipe 413 is connected to tracheae 401, and 413 branch pipes are equipped with the second ball valve 414, pressure
Table 405 is connect by double-head inner thread pipe 404 with tracheae 401.As shown in figure 5, further including four the second screw threads in the present embodiment
Straight-through 412, and four the second thread straight-throughs 412 are arranged on tracheae 401, wherein logical 411 both ends are respectively provided with outside double thread
One the second thread straight-through 412, two of check valve 408 are respectively provided with second thread straight-through 412.Pressure gauge 405 can be surveyed
Operating pressure in eudiometer tube 401 also can measure the pressure inside soft connection device 2, when the pressure value on pressure gauge 405 is solid
When fixed constant, the pressure value inside soft connection device 2 is equal with the operating pressure numerical value in tracheae 401 at this time.Pressure regulator valve 407
For adjusting the size of the operating pressure in tracheae 401.
Further, as a kind of preferable embodiment, pressure adjusting unit 4 further includes check valve 408, on tracheae 401
Equipped with check valve 408, check valve 408 is between pressure regulator valve 407 and air compressor machine 402.The check valve 408 of setting can prevent gas
Lead to the unstable of the operating pressure in tracheae 401 in gas backstreaming to air compressor machine 402 in pipe 401.
Further, as a kind of preferable embodiment, pressure adjusting unit 4 further includes the triple valve 409 in T-shape,
Double-head inner thread pipe 404 is connect by triple valve 409 with tracheae 401.
Further, as a kind of preferable embodiment, pressure adjusting unit 4 further includes muffler 410, the second ball valve
Muffler 410 is installed on 414.The muffler 410 of setting can prevent the second ball valve 414 from generating biggish noise when working.
Further, as a kind of preferable embodiment, pressure adjusting unit 4 further includes pressure regulator valve logical 411 outside double thread
407 connect by outside double thread logical 411 with tracheae 401.
Illustrate to be flexible coupling in the present invention the preferable pressure testing method of pressure resistant testing device below, which includes:
S1, the first ball valve 406 of closing and the second ball valve, pressure regulator valve 407 are in close state.
S2, starting air compressor machine 402 are first pressure value (preset pressure when air compressor machine 402 builds the pressure to operating pressure
Value) when, the first ball valve 406 is opened, and operating pressure is adjusted to by second pressure value by pressure regulator valve 407 (second pressure value is
The rated designs pressure value of 0.8 times of soft connection device 2), the pressure value on pressure gauge 405 is then observed again, when being flexible coupling
When the pressure of the inside of device 2 is under second pressure state of value, then pressure maintaining 3min, while and observing the pressure on pressure gauge 405
(state of soft connection device 2 is primarily referred to as whether soft connection device 2 leaks for power numerical value situation and the state of soft connection device 2
The phenomenon that gas or explosion).
S3, operating pressure is adjusted to third pressure value by pressure regulator valve 407, and (third pressure value is soft connection device 2
Rated designs pressure value), the pressure value on pressure gauge 405 is then observed again, when the pressure of the inside of soft connection device 2 is in
When under third pressure state of value, then pressure maintaining 3min, while and observing pressure value situation and soft connection device on pressure gauge 405
2 state.
S4, operating pressure is adjusted to the 4th pressure value by pressure regulator valve 407, and (the 4th pressure value is 1.2 times and is flexible coupling
The rated designs pressure value of device 2), the pressure value on pressure gauge 405 is then observed again, when the inside of soft connection device 2
When pressure is under the 4th pressure state of value, then pressure maintaining 10min, while and observe the pressure value situation on pressure gauge 405 and
The state of soft connection device 2.
S5, air compressor machine 402 and the first ball valve 406 are first closed, turns off the second ball valve 414, be vented in soft connection device 2
Pressure.
The foregoing is merely preferred embodiments of the present invention, are not intended to limit embodiments of the present invention and protection model
It encloses, to those skilled in the art, should can appreciate that all with made by description of the invention and diagramatic content
Equivalent replacement and obviously change obtained scheme, should all be included within the scope of the present invention.
Claims (9)
- The pressure resistant testing device 1. one kind is flexible coupling, which is characterized in that including rail set, mobile holder device, soft connection device, Protective cover and pressure adjusting unit；The mobile holder device is movably disposed at the upper end of the rail set；The mobile holder device includes two supporting rack components and several pull rods, and institute is symmetrically arranged in the two supporting rack components The upper end of rail set is stated, and passes through several pull rod connections between the two supporting rack components；The soft connection device is fixed between the two supporting rack components by several pull rods, and the protective cover is set in The outside of the soft connection device；The side of the rail set, and the pressure adjusting unit and the dress that is flexible coupling is arranged in the pressure adjusting unit Set connection.
- 2. be flexible coupling pressure resistant testing device as described in claim 1, which is characterized in that each supporting rack component wraps It includes:The upper end of the rail set is arranged in supporting rack, the supporting rack；Outrigger plate, the outrigger plate are located at the side of the supporting rack；Rubber pad, the rubber pad is arranged on the outrigger plate, and the rubber pad is located at the outrigger plate far from the branch The side of leg support, wherein one end of each pull rod is run through a rubber pad and connect with an outrigger plate, each The other end of the pull rod runs through another rubber pad and connect with another outrigger plate, wherein the dress that is flexible coupling The one end set is connect with wherein one rubber seal, the other end of the soft connection device and another rubber seal Connection.
- 3. be flexible coupling pressure resistant testing device as claimed in claim 2, which is characterized in that the rail set includes being symmetrical arranged Two channel steels, the upper end of each channel steel is uniformly equipped with several long holes, and the lower end of each channel steel passes through expanding screw Bolt is connect with ground；Each supporting rack is separately positioned on the upper end of two channel steels.
- 4. be flexible coupling pressure resistant testing device as described in claim 1, which is characterized in that the pressure adjusting unit includes gas Pipe, air compressor machine, the first thread straight-through, double-head inner thread pipe, pressure gauge, the first ball valve, pressure regulator valve, branch pipe and the second ball valve, institute The one end for stating tracheae is connect by first thread straight-through with the soft connection device, the other end of the tracheae and the sky Press connection is successively arranged the pressure gauge, described by the other end of one end to the tracheae of the tracheae on the tracheae Branch pipe, first ball valve and the pressure regulator valve, wherein the branch pipe is connected to the tracheae, and the branch pipe is equipped with described Second ball valve, the pressure gauge are connect by the double-head inner thread pipe with the tracheae.
- 5. be flexible coupling pressure resistant testing device as claimed in claim 4, which is characterized in that further include check valve, on the tracheae Equipped with the check valve, the check valve is between the pressure regulator valve and the air compressor machine.
- 6. be flexible coupling pressure resistant testing device as claimed in claim 4, which is characterized in that further include the triple valve in T-shape, institute Double-head inner thread pipe is stated to connect by the triple valve with the tracheae.
- 7. be flexible coupling pressure resistant testing device as claimed in claim 4, which is characterized in that it further include muffler, second ball The muffler is installed on valve.
- 8. be flexible coupling pressure resistant testing device as claimed in claim 4, which is characterized in that further include logical outside double thread, the tune Pressure valve is connect by logical outside the double thread with the tracheae.
- 9. a kind of pressure testing method for the pressure resistant testing device that is flexible coupling, which is characterized in that including any one of claim 4-8 institute The pressure resistant testing device that is flexible coupling stated, the pressure testing method include:S1, closing first ball valve and second ball valve, the pressure regulator valve are in close state；S2, the starting air compressor machine, when the air compressor machine build the pressure to operating pressure be first pressure value when, open first ball Valve, and the operating pressure is adjusted to by second pressure value by the pressure regulator valve, the pressure on the pressure gauge is then observed again Power numerical value, when the pressure of the inside of the soft connection device is under second pressure state of value, then pressure maintaining 3min, while and seeing Examine the state of the pressure value situation and the soft connection device on the pressure gauge；S3, the operating pressure is adjusted to by third pressure value by the pressure regulator valve, is then observed on the pressure gauge again Pressure value, when the pressure of the inside of the soft connection device is under third pressure state of value, then pressure maintaining 3min, while simultaneously Observe the state of the pressure value situation and the soft connection device on the pressure gauge；S4, operating pressure is adjusted to by the 4th pressure value by the pressure regulator valve, then observes the pressure on the pressure gauge again Numerical value, when the pressure of the inside of the soft connection device is under P3 state, then pressure maintaining 10min, while and observing the pressure The state of pressure value situation and the soft connection device on power table；S5, the air compressor machine and first ball valve are first closed, turns off second ball valve, is vented in the soft connection device Pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910656758.3A CN110243694A (en) | 2019-07-19 | 2019-07-19 | One kind is flexible coupling pressure resistant testing device and its pressure testing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910656758.3A CN110243694A (en) | 2019-07-19 | 2019-07-19 | One kind is flexible coupling pressure resistant testing device and its pressure testing method |
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| CN110243694A true CN110243694A (en) | 2019-09-17 |
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| CN201910656758.3A Pending CN110243694A (en) | 2019-07-19 | 2019-07-19 | One kind is flexible coupling pressure resistant testing device and its pressure testing method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010197159A (en) * | 2009-02-24 | 2010-09-09 | Toshiba Corp | Withstand voltage test device |
| CN106289731A (en) * | 2015-05-12 | 2017-01-04 | 中国石油化工股份有限公司 | A kind of assay device for cementing tool and test method thereof |
| CN208833452U (en) * | 2018-10-30 | 2019-05-07 | 济南寰正科技发展有限公司 | Nasal oxygen tube leakage and pressure resistant testing device |
| CN109839249A (en) * | 2019-03-29 | 2019-06-04 | 江苏亚太轻合金科技股份有限公司 | A kind of aluminium alloy pipe pressure-resistant seal system safety testing device |
| CN210427242U (en) * | 2019-07-19 | 2020-04-28 | 中国建材国际工程集团有限公司 | Flexible connection voltage-withstanding testing device |
-
2019
- 2019-07-19 CN CN201910656758.3A patent/CN110243694A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010197159A (en) * | 2009-02-24 | 2010-09-09 | Toshiba Corp | Withstand voltage test device |
| CN106289731A (en) * | 2015-05-12 | 2017-01-04 | 中国石油化工股份有限公司 | A kind of assay device for cementing tool and test method thereof |
| CN208833452U (en) * | 2018-10-30 | 2019-05-07 | 济南寰正科技发展有限公司 | Nasal oxygen tube leakage and pressure resistant testing device |
| CN109839249A (en) * | 2019-03-29 | 2019-06-04 | 江苏亚太轻合金科技股份有限公司 | A kind of aluminium alloy pipe pressure-resistant seal system safety testing device |
| CN210427242U (en) * | 2019-07-19 | 2020-04-28 | 中国建材国际工程集团有限公司 | Flexible connection voltage-withstanding testing device |
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