CN109540420A - A kind of PE ball valve detection device - Google Patents
A kind of PE ball valve detection device Download PDFInfo
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- CN109540420A CN109540420A CN201910090857.XA CN201910090857A CN109540420A CN 109540420 A CN109540420 A CN 109540420A CN 201910090857 A CN201910090857 A CN 201910090857A CN 109540420 A CN109540420 A CN 109540420A
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- ball valve
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- pressure cylinder
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- 238000001514 detection method Methods 0.000 title claims abstract description 30
- 238000007789 sealing Methods 0.000 claims abstract description 224
- 238000012360 testing method Methods 0.000 claims abstract description 124
- 238000005273 aeration Methods 0.000 claims description 25
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 8
- 244000309464 bull Species 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 abstract description 3
- 238000011982 device technology Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 12
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 8
- 230000033001 locomotion Effects 0.000 description 8
- 238000007689 inspection Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000003321 amplification Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2876—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for valves
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Sliding Valves (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a kind of PE ball valve detection devices, it is related to detection device technology field, including at least a bottom plate, locating support, a testing agency and a driving mechanism there are two being set on the bottom plate, described two locating supports, a testing agency and a driving mechanism are respectively positioned on same straight line, and testing agency can be moved laterally by driving mechanism driving.The present invention be easy to cause ball valve to deform to solve the existing mode being sealed using gasket extrusion ball valve face, influence test result, and test cavity is larger, the problem of measuring accuracy is relatively difficult to guarantee, it is proposed that a kind of sealing plate stretches formula in being, it not will cause ball valve deformation, and reduce test cavity, improve the PE ball valve detection device of measuring accuracy.
Description
Technical field
The present invention relates to detection device technology field more particularly to a kind of PE ball valve detection devices.
Background technique
PE ball valve is mainly used in gas distributing system or petroleum pipeline network, and the requirement for sealing performance is higher than water valve, because
For in use in case of leak, it would be possible to cause immeasurable loss, therefore, PE ball valve factory before, all need through
It is detected after strictly sealing performance, leak detection is also made to test.
One of them detection project is pressure maintaining test, and pressure maintaining test is divided into single-chamber test and the test of whole chamber, single-chamber test again
To recycle sealing mechanism by ball valve one end port sealing ball valve ball rotation to closed state, toward the side ball valve inside fill
Enter the air of certain atmospheric pressure value, stand one end time, judges whether the ball valve side chamber body is deposited by the way that whether observation air pressure declines
It is leaking；Whole chamber test is to recycle sealing mechanism to seal ball valve both ends port ball valve ball rotation to opening state,
It is filled with the air of certain atmospheric pressure value inside toward entire ball valve, stands one end time, judges ball by the way that whether observation air pressure declines
The entire cavity of valve is with the presence or absence of leakage.
Existing detection device often realizes sealing using gasket extrusion ball valve face, since PE ball valve is plastics material
Matter, this sealing means be easy to cause ball valve to deform, impact to test result, also, realize and seal in port, test
Cavity is larger, and measuring accuracy is relatively difficult to guarantee.
Summary of the invention
The present invention be easy to cause ball valve to become to solve the existing mode being sealed using gasket extrusion ball valve face
Shape influences test result, and tests the problem of cavity is larger, and measuring accuracy is relatively difficult to guarantee, and proposes that a kind of sealing plate stretches formula in being,
It not will cause ball valve deformation, and reduce test cavity, improve the PE ball valve detection device of measuring accuracy.
To achieve the goals above, the invention adopts the following technical scheme:
A kind of PE ball valve detection device, includes at least a bottom plate, sets that there are two locating supports, a detection machine on the bottom plate
Structure and a driving mechanism, described two locating supports, a testing agency and a driving mechanism are respectively positioned on same straight line,
Testing agency can be moved laterally by driving mechanism driving；
There are the gap of accommodating ball seat between described two locating supports, the top of two locating supports is equipped with for fixed
The limited bayonet of position ball valve link arm；
The testing agency successively includes sealing plate, a connecting rod and a limit plate after one, rear sealing plate and limit from front to back
It is fixed by the connecting rod between plate, the leading flank of rear sealing plate is arranged towards locating support, the trailing flank of limit plate and driving machine
Structure connection, rear sealing plate are plectane, and the circumferential side wall of rear sealing plate is equipped with the O-ring seal for seal ball-valve inner wall, after
It is equipped with aeration aperture and instrument connection through front and rear wall on sealing plate, the aeration aperture is connect by tracheae with external air source, the survey
Prospect hole is connect by tracheae with air pressure test equipment.
Preferably, it is described after sealing plate leading flank edge be equipped with convenient for rear sealing plate protrude into ball valve port chamfering or
Fillet.
Preferably, the driving mechanism is a driving cylinder, the cylinder body of cylinder is driven to pass through a positioning pedestal and bottom plate
It is fixed, drive the piston rod of cylinder to fix with limit plate.
Preferably, the bottom plate is equipped with the thrust plate for preventing ball valve from retreating, the thrust plate, which is located at two, to be determined
Position side of the bracket far from driving mechanism.
Preferably, the bottom plate is equipped with the guiding mechanism of limit plate, the guiding mechanism is polished rod mechanism or sliding rail
Mechanism.
Preferably, sealing plate is equipped with rear gas-flow closure circle and the inflator for the inflation of rear gas-flow closure circle after described
Structure is equipped with the rear sealing ring limiting slot for gas-flow closure circle after accommodating in sealing plate circumferential side wall, fills after described after described
Airtight seal is located in rear sealing ring limiting slot；
The inflation mechanism includes a small pressure cylinder, a big pressure cylinder, a strut and a turning rod, the small pressure gas
Cylinder, big pressure cylinder and strut are each attached on the trailing flank of rear sealing plate, and strut is located at small pressure cylinder and big pressure cylinder
Between, the spacing between small pressure cylinder and strut is greater than the spacing between big pressure cylinder and strut；After described in sealing plate
Gas channels a equipped with connection big pressure cylinder inner cavity and rear gas-flow closure circle inner cavity, and the small pressure cylinder inner cavity of connection and
The gas channels b of sealing plate leading flank afterwards；
The turning rod is hinged on strut, and the pivot center of turning rod is parallel with the trailing flank of rear sealing plate；
It is slidingly sealed equipped with piston a and the piston rod a being connect with piston a, piston a with small pressure cylinder inner wall in small pressure cylinder
Cooperation, the one end piston rod a are fixed with piston a, and the other end is equipped with slide-bar a, and turning rod is equipped with the slideway being slidably matched with slide-bar a
a；
It is slidingly sealed equipped with piston b and the piston rod b being connect with piston b, piston b with big pressure cylinder inner wall in big pressure cylinder
Cooperation, the one end piston rod b are fixed with piston b, and the other end is equipped with slide-bar b, and turning rod is equipped with the slideway being slidably matched with slide-bar b
b。
Preferably, being equipped with the compressed spring for replying piston b in the big pressure cylinder.
A kind of PE ball valve detection device, includes at least a bottom plate, sets that there are two locating supports, an inspection on the bottom plate
Mechanism and a driving mechanism are surveyed, described two locating supports, a testing agency and a driving mechanism are respectively positioned on always
On line, testing agency can be moved laterally by driving mechanism driving；
There are the gap of accommodating ball seat between described two locating supports, the top of two locating supports is equipped with for fixed
The limited bayonet of position ball valve link arm；
The testing agency successively includes sealing plate, a connecting rod and a limit after sealing plate, a positioning column, one before one from front to back
Position plate, is fixed by positioning column between preceding sealing plate and rear sealing plate, is fixed by the connecting rod between rear sealing plate and limit plate,
The leading flank of preceding sealing plate is arranged towards locating support, and the trailing flank of limit plate connect with driving mechanism, preceding sealing plate and rear close
Sealing plate is plectane and coaxial arrangement, is equipped in the circumferential side wall of preceding sealing plate and rear sealing plate for seal ball-valve inner wall
O-ring seal, is equipped with aeration aperture and instrument connection through front and rear wall on rear sealing plate, and the aeration aperture passes through tracheae and external air source
Connection, the instrument connection are connect by tracheae with air pressure test equipment.
Preferably, the preceding sealing plate is identical with the diameter of rear sealing plate.
Therefore, it stretches formula sealing plate the invention has the following beneficial effects: 1, using interior ball valve inner cavity is sealed, it will not
It causes ball valve to be squeezed and deformed, improves measuring accuracy；2, it stretches formula sealing plate using interior ball valve inner cavity is sealed, it is empty to reduce test
Chamber further increases measuring accuracy；3, it is provided with gas-flow closure circle, further ensures the leakproofness of sealing plate in test process,
And gas-flow closure circle is inflated expansion using test gas source, it is not necessary that source of inflation gas is separately provided, linkage is strong.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment one.
Fig. 2 is the structural schematic diagram of one test mode of embodiment.
Fig. 3 is the structural schematic diagram of locating support working condition in embodiment one.
Fig. 4 is the structural schematic diagram of testing agency in embodiment one.
Fig. 5 is the cross-sectional view of testing agency in embodiment one.
Fig. 6 is the enlarged drawing in Fig. 5 at a.
Fig. 7 is the structural schematic diagram in the direction A-A in Fig. 5.
Fig. 8 is the structural schematic diagram of embodiment two.
Fig. 9 is the structural schematic diagram of two test mode of embodiment.
Figure 10 is the structural schematic diagram of testing agency in embodiment two.
Figure 11 is the gas channels schematic diagram being connected between preceding gas-flow closure circle and rear gas-flow closure circle in embodiment two.
Figure 12 is the structural schematic diagram of embodiment three.
Figure 13 is the structural schematic diagram of rear sealing plate trailing flank in embodiment three.
Figure 14 is the cross-sectional view of inflation mechanism in embodiment three.
Figure 15 is the structural schematic diagram of gas channels d and gas channels e in embodiment three.
Figure 16 is the structural schematic diagram of example IV.
1: bottom plate；2: locating support；201: limited bayonet；3: testing agency；301: rear sealing plate；302: connecting rod；
303: limit plate；304:O type sealing ring；305: rear gas-flow closure circle；306: preceding sealing plate；307: positioning column；308: preceding inflation
Sealing ring；4: driving mechanism；5: positioning pedestal；6: thrust plate；7: ball valve；701: valve seat；702: valve ball；703: link arm；8: filling
Mechanism of qi structure；801: small pressure cylinder；802: big pressure cylinder；803: strut；804: turning rod；805: piston a；806: piston rod
a；807: slide-bar a；808: slideway a；809: piston b；810: piston rod b；811: slide-bar b；812: slideway b；813: compressed spring；
814: small arc cylinder；815: big arc cylinder；816: shaft；817: rotating bar；818: piston c；819: small arc piston rod
c；820: piston d；821: big arc piston rod d；9: aeration aperture；10: instrument connection；11: gas channels a；12: gas channels b；
13: gas channels c；14: gas channels d；15: gas channels e.
Specific embodiment
The present invention will be further described with specific embodiment with reference to the accompanying drawing.
Embodiment one
Referring to Fig. 1 to Fig. 7, a kind of PE ball valve detection device described in the present embodiment includes at least a bottom plate 1, the bottom plate 1
On set there are two 2, testing agencies 3 of locating support and a driving mechanism 4,2, detection machines of described two locating supports
Structure 3 and a driving mechanism 4 are respectively positioned on same straight line, and testing agency 3 can be moved laterally by the driving of driving mechanism 4.
There are the gap of accommodating ball seat 701 between described two locating supports 2, the top of two locating supports 2 is equal
Equipped with the limited bayonet 201 for positioning ball valve link arm 703.
The testing agency 3 successively includes sealing plate 301, a connecting rod 302 and a limit plate 303 after one from front to back,
Fixed by connecting rod 302 between sealing plate 301 and limit plate 303 afterwards, the leading flank of rear sealing plate 301 is towards locating support 2
Setting, the trailing flank of limit plate 303 are connect with driving mechanism 4, and rear sealing plate 301 is plectane, the circumferential side wall of rear sealing plate 301
It is equipped with the O-ring seal 304 for 7 inner wall of seal ball-valve, aeration aperture 9 is equipped with through front and rear wall on rear sealing plate 301 and surveys
Prospect hole 10, the aeration aperture 9 are connect by tracheae with external air source, and the instrument connection 10 is connected by tracheae and air pressure test equipment
It connects.
The leading flank edge of sealing plate 301 is equipped with the chamfering or circle that 7 port of ball valve is protruded into convenient for rear sealing plate 301 after described
Angle.
The driving mechanism 4 is a driving cylinder, drives the cylinder body of cylinder fixed with bottom plate 1 by a positioning pedestal 5, drives
Take offence cylinder piston rod and limit plate 303 it is fixed.
The bottom plate 1 is equipped with the thrust plate 6 for preventing ball valve 7 from retreating, and the thrust plate 6 is located at two locating supports
2 sides far from driving mechanism 4.
The bottom plate 1 is equipped with the guiding mechanism of limit plate 303, and the guiding mechanism is polished rod mechanism or sliding track mechanism.
Sealing plate 301 is equipped with rear gas-flow closure circle 305 and the inflator for the inflation of rear gas-flow closure circle 305 after described
Structure 8 is equipped with the rear sealing ring limiting slot for gas-flow closure circle 305 after accommodating, institute in sealing plate 301 circumferential side wall after described
Rear gas-flow closure circle 305 is stated to be located in rear sealing ring limiting slot.
The inflation mechanism 8 includes a small pressure cylinder 801, a big pressure cylinder 802, a strut 803 and a turning rod
804, the small pressure cylinder 801, big pressure cylinder 802 and strut 803 are each attached on the trailing flank of rear sealing plate 301, branch
Bar 803 is located between small pressure cylinder 801 and big pressure cylinder 802, and the spacing between small pressure cylinder 801 and strut 803 is big
Spacing between big pressure cylinder 802 and strut 803；It is equipped in sealing plate 301 after described and is connected to big 802 inner cavity of pressure cylinder
With the gas channels a11 of rear 305 inner cavity of gas-flow closure circle, and 301 front side of small 801 inner cavity of pressure cylinder of connection and rear sealing plate
The gas channels b12 in face.
The turning rod 804 is hinged on strut 803, the trailing flank of the pivot center of turning rod 804 and rear sealing plate 301
In parallel.
In small pressure cylinder 801 equipped with piston a805 and the piston rod a806 being connect with piston a805, piston a805 with it is small
801 inner wall of pressure cylinder is slidingly sealed cooperation, and the one end piston rod a806 is fixed with piston a805, and the other end is equipped with slide-bar a807,
Turning rod 804 is equipped with the slideway a808 being slidably matched with slide-bar a807.
Equipped with piston b809 and the piston rod b810 being connect with piston b809, piston b809 and greatly in big pressure cylinder 802
802 inner wall of pressure cylinder is slidingly sealed cooperation, and the one end piston rod b810 is fixed with piston b809, and the other end is equipped with slide-bar b811,
Turning rod 804 is equipped with the slideway b812 being slidably matched with slide-bar b811.
The compressed spring 813 for replying piston b809, the compressed spring 813 are equipped in the big pressure cylinder 802
Between piston b809 and rear sealing plate 301.
When test, ball valve 7 is located on two locating supports 2, valve seat 701 is located between two locating supports 2, ball valve
The link arm 703 of 7 two sides is respectively engaged on the limited bayonet 201 of two locating supports 2, then the rotation of ball valve valve ball 702 is extremely closed
Closed state.
Start driving mechanism 4, pushes testing agency 3 mobile toward 7 one end port of ball valve, in 3 moving process of testing agency, inspection
The rear sealing plate 301 for surveying mechanism 3 is protruded into from 7 one end port of ball valve, until limit plate 303 and the side end face of ball valve 7 contradict, entirely
Testing agency 3 stops movement, and realizes sealing between 703 inner hole wall of O-ring seal 304 and link arm on rear sealing plate 301, this
When, a sealing test cavity is formd between the rear sealing plate 301 and valve ball 702 inside ball valve 7.
Restart external air source, by aeration aperture 9 toward the sealing test sky interacvity air-filling, so that in sealing test cavity
Air pressure, which reaches, needs atmospheric pressure value to be tested.Meanwhile in gas replenishment process, the gas in the sealing test cavity can pass through gas channels
B12 enters small 801 inner cavity of pressure cylinder, and the air pressure increase of small 801 inner cavity of pressure cylinder will push piston a805 and move up, and then band
Piston bar a806 is moved up, and during piston rod a806 is moved up, the slide-bar a807 on piston rod a806 can be on turning rod 804
Sliding in slideway a808, meanwhile, it is lifted the one end of turning rod 804, is hingedly to cooperate between turning rod 804 and strut 803, turns over
804 one end of bull stick is risen, and the other end can then decline.The other end of turning rod 804 declines, and the slide-bar b811 on piston rod b810 is then
It can be slided in the slideway b812 on turning rod 804, and push piston rod b810, and then piston b809 is pushed to move down, piston
B809 movement squeezes the cavity in big pressure cylinder 802, and the air pressure in big pressure cylinder 802 increases, and will pass through gas channels
A11 enters rear gas-flow closure circle 305, so that rear gas-flow closure circle 305 expands, until being bonded realization two with 703 inner hole wall of link arm
Secondary sealing.Also, the principle for having used lever amplification here, since the spacing between small pressure cylinder 801 and strut 803 is greater than
Spacing between big pressure cylinder 802 and strut 803, therefore, the arm of force of piston a805 are greater than the arm of force of piston b809, work as piston
A805 and piston b809 reach balance it is motionless when, in small pressure cylinder 801 situation identical with big 802 cylinder diameter of pressure cylinder,
The power that piston a805 is subject to is less than the power that piston b809 is subject to, i.e., the atmospheric pressure value in big pressure cylinder 802 is greater than small pressure cylinder
Atmospheric pressure value in 801 is further released, and the atmospheric pressure value in rear gas-flow closure circle 305 is greater than the test gas in sealing test cavity
Pressure enables rear gas-flow closure circle 305 preferably to realize to 7 inner wall of ball valve and seals, and measuring air pressure increases, rear gas-flow closure
Air pressure in circle 305 can also increase with it.Prevent measuring air pressure excessive, the problem of O-ring seal 304 can not achieve sealing.
When the air pressure in sealing test cavity is charged to test desirable value, and to reach balance motionless by piston a805 and piston b809
When, external air source is cut off, air pressure test equipment is recycled to monitor the air pressure change feelings in sealing test cavity by instrument connection 10
Condition can determine whether the side chamber body of ball valve 7 with the presence or absence of leakage.
After being completed, let out by aeration aperture 9 except the air pressure in sealing test cavity, turning rod 804 will reverse flip,
Gas-flow closure circle 305 will reduce afterwards, until being detached from 703 inner hole wall of link arm, can bounce back testing agency 3, prepare next round
Test.
Embodiment two
Referring to Fig. 8 to Figure 11, a kind of PE ball valve detection device described in the present embodiment includes at least a bottom plate 1, the bottom plate
It is set on 1 there are two 2, testing agencies 3 of locating support and a driving mechanism 4, described two locating supports 2, one are detected
Mechanism 3 and a driving mechanism 4 are respectively positioned on same straight line, and testing agency 3 can be moved laterally by the driving of driving mechanism 4.
There are the gap of accommodating ball seat 701 between described two locating supports 2, the top of two locating supports 2 is equal
Equipped with the limited bayonet 201 for positioning ball valve link arm 703.
The testing agency 3 successively include from front to back sealing plate 301 after sealing plate 306, a positioning column 307, one before one,
One connecting rod 302 and a limit plate 303, it is fixed by positioning column 307 between preceding sealing plate 306 and rear sealing plate 301, it is rear to seal
Fixed by connecting rod 302 between plate 301 and limit plate 303, the leading flank of preceding sealing plate 306 is arranged towards locating support 2, limit
The trailing flank of position plate 303 is connect with driving mechanism 4, and preceding sealing plate 306 and rear sealing plate 301 are plectane and coaxial arrangement, preceding
The O-ring seal 304 for 7 inner wall of seal ball-valve is equipped in the circumferential side wall of sealing plate 306 and rear sealing plate 301, it is rear close
It is equipped with aeration aperture 9 and instrument connection 10 through front and rear wall on sealing plate 301, the aeration aperture 9 is connect by tracheae with external air source, institute
Instrument connection 10 is stated to connect by tracheae with air pressure test equipment.
The preceding sealing plate 306 is identical with the diameter of rear sealing plate 301.
The driving mechanism 4 is a driving cylinder, drives the cylinder body of cylinder fixed with bottom plate 1 by a positioning pedestal 5, drives
Take offence cylinder piston rod and limit plate 303 it is fixed.
The bottom plate 1 is equipped with the thrust plate 6 for preventing ball valve 7 from retreating, and the thrust plate 6 is located at two locating supports
2 sides far from driving mechanism 4.
The bottom plate 1 is equipped with the guiding mechanism of limit plate 303, and the guiding mechanism is polished rod mechanism or sliding track mechanism.
The preceding sealing plate 306 is equipped with preceding gas-flow closure circle 308, and the rear sealing plate 301 is equipped with rear gas-flow closure
Circle 305 and the inflation mechanism 8 inflated for front and back gas-flow closure circle；It is equipped with and is used in 306 circumferential side wall of preceding sealing plate
The preceding sealing ring limiting slot of gas-flow closure circle 308, the preceding gas-flow closure circle 308 are located in preceding sealing ring limiting slot before accommodating；
The rear sealing ring limiting slot for gas-flow closure circle 305 after accommodating is equipped with after described in 301 circumferential side wall of sealing plate, after described
Gas-flow closure circle 305 is located in rear sealing ring limiting slot；It is set in the preceding sealing plate 306, positioning column 307 and rear sealing plate 301
There is the gas channels c13 for being connected to preceding gas-flow closure circle 308 and rear gas-flow closure circle 305.
The inflation mechanism 8 includes a small pressure cylinder 801, a big pressure cylinder 802, a strut 803 and a turning rod
804, the small pressure cylinder 801, big pressure cylinder 802 and strut 803 are each attached on the trailing flank of rear sealing plate 301, branch
Bar 803 is located between small pressure cylinder 801 and big pressure cylinder 802, and the spacing between small pressure cylinder 801 and strut 803 is big
Spacing between big pressure cylinder 802 and strut 803；It is equipped in sealing plate 301 after described and is connected to big 802 inner cavity of pressure cylinder
With the gas channels a11 of rear 305 inner cavity of gas-flow closure circle, and 301 front side of small 801 inner cavity of pressure cylinder of connection and rear sealing plate
The gas channels b12 in face.
The turning rod 804 is hinged on strut 803, the trailing flank of the pivot center of turning rod 804 and rear sealing plate 301
In parallel.
In small pressure cylinder 801 equipped with piston a805 and the piston rod a806 being connect with piston a805, piston a805 with it is small
801 inner wall of pressure cylinder is slidingly sealed cooperation, and the one end piston rod a806 is fixed with piston a805, and the other end is equipped with slide-bar a807,
Turning rod 804 is equipped with the slideway a808 being slidably matched with slide-bar a807.
Equipped with piston b809 and the piston rod b810 being connect with piston b809, piston b809 and greatly in big pressure cylinder 802
802 inner wall of pressure cylinder is slidingly sealed cooperation, and the one end piston rod b810 is fixed with piston b809, and the other end is equipped with slide-bar b811,
Turning rod 804 is equipped with the slideway b812 being slidably matched with slide-bar b811.
The compressed spring 813 for replying piston b809, the compressed spring 813 are equipped in the big pressure cylinder 802
Between piston b809 and rear sealing plate 301.
When test, ball valve 7 is located on two locating supports 2, valve seat 701 is located between two locating supports 2, ball valve
The link arm 703 of 7 two sides is respectively engaged on the limited bayonet 201 of two locating supports 2, then the rotation of ball valve valve ball 702 is extremely beaten
Open state.
Start driving mechanism 4, pushes testing agency 3 mobile toward 7 one end port of ball valve, in 3 moving process of testing agency, inspection
The preceding sealing plate 306 and rear sealing plate 301 for surveying mechanism 3 are successively protruded into from 7 one end port of ball valve, until limit plate 303 and ball valve 7
The side end face contradicts, and entire testing agency 3 stops movement, and the O-ring seal 304 on preceding sealing plate 306 and rear sealing plate 301
Sealing is realized between 703 inner hole wall of link arm, at this point, preceding sealing plate 306 and rear sealing plate 301 are located at 702 two sides of valve ball,
A sealing test cavity is formd between preceding sealing plate 306 and rear sealing plate 301 inside ball valve 7.
Restart external air source, by aeration aperture 9 toward the sealing test sky interacvity air-filling, so that in sealing test cavity
Air pressure, which reaches, needs atmospheric pressure value to be tested.Meanwhile in gas replenishment process, the gas in the sealing test cavity can pass through gas channels
B12 enters small 801 inner cavity of pressure cylinder, and the air pressure increase of small 801 inner cavity of pressure cylinder will push piston a805 and move up, and then band
Piston bar a806 is moved up, and during piston rod a806 is moved up, the slide-bar a807 on piston rod a806 can be on turning rod 804
Sliding in slideway a808, meanwhile, it is lifted the one end of turning rod 804, is hingedly to cooperate between turning rod 804 and strut 803, turns over
804 one end of bull stick is risen, and the other end can then decline.The other end of turning rod 804 declines, and the slide-bar b811 on piston rod b810 is then
It can be slided in the slideway b812 on turning rod 804, and push piston rod b810, and then piston b809 is pushed to move down, piston
B809 movement squeezes the cavity in big pressure cylinder 802, and the air pressure in big pressure cylinder 802 increases, and will pass through gas channels
A11 enters rear gas-flow closure circle 305, so that rear gas-flow closure circle 305 expands, meanwhile, before also being entered by gas channels c13
Gas-flow closure circle 308, so that preceding gas-flow closure circle 308 expands, until two gas-flow closure circles and 703 inner hole wall of two sides link arm paste
It closes and realizes secondary seal.Also, the principle for having used lever amplification here, due between small pressure cylinder 801 and strut 803
Spacing is greater than the spacing between big pressure cylinder 802 and strut 803, and therefore, the arm of force of piston a805 is greater than the power of piston b809
Arm is identical with big 802 cylinder diameter of pressure cylinder in small pressure cylinder 801 when piston a805 and piston b809, which reaches, balances motionless
In the case where, the power that piston a805 is subject to is less than the power that piston b809 is subject to, i.e., the atmospheric pressure value in big pressure cylinder 802 is greater than small
Atmospheric pressure value in pressure cylinder 801 is further released, and the atmospheric pressure value in preceding gas-flow closure circle 308 and rear gas-flow closure circle 305 is big
Measuring air pressure in sealing test cavity enables preceding gas-flow closure circle 308 and rear gas-flow closure circle 305 preferably to ball
7 inner wall of valve realizes sealing, and measuring air pressure increases, and the air pressure in preceding gas-flow closure circle 308 and rear gas-flow closure circle 305 also can be with
Increase.Prevent measuring air pressure excessive, the problem of O-ring seal 304 can not achieve sealing.
When the air pressure in sealing test cavity is charged to test desirable value, and to reach balance motionless by piston a805 and piston b809
When, external air source is cut off, air pressure test equipment is recycled to monitor the air pressure change feelings in sealing test cavity by instrument connection 10
Condition can determine whether the whole chamber of ball valve 7 with the presence or absence of leakage.
After being completed, let out by aeration aperture 9 except the air pressure in sealing test cavity, turning rod 804 will reverse flip,
Preceding gas-flow closure circle 308 and rear gas-flow closure circle 305 will reduce, until being detached from 703 inner hole wall of link arm, can bounce back detection
Mechanism 3 prepares next round test.
Embodiment three
Referring to Figure 12 to Figure 15, a kind of PE ball valve detection device described in the present embodiment includes at least a bottom plate 1, the bottom
It is set on plate 1 there are two 2, testing agencies 3 of locating support and a driving mechanism 4, described two locating supports 2, one are examined
It surveys mechanism 3 and a driving mechanism 4 is respectively positioned on same straight line, testing agency 3 can make lateral shifting by the driving of driving mechanism 4
It is dynamic.
There are the gap of accommodating ball seat 701 between described two locating supports 2, the top of two locating supports 2 is equal
Equipped with the limited bayonet 201 for positioning ball valve link arm 703.
The testing agency 3 successively includes sealing plate 301, a connecting rod 302 and a limit plate 303 after one from front to back,
Fixed by connecting rod 302 between sealing plate 301 and limit plate 303 afterwards, the leading flank of rear sealing plate 301 is towards locating support 2
Setting, the trailing flank of limit plate 303 are connect with driving mechanism 4, and rear sealing plate 301 is plectane, the circumferential side wall of rear sealing plate 301
It is equipped with the O-ring seal 304 for 7 inner wall of seal ball-valve, aeration aperture 9 is equipped with through front and rear wall on rear sealing plate 301 and surveys
Prospect hole 10, the aeration aperture 9 are connect by tracheae with external air source, and the instrument connection 10 is connected by tracheae and air pressure test equipment
It connects.
The leading flank edge of sealing plate 301 is equipped with the chamfering or circle that 7 port of ball valve is protruded into convenient for rear sealing plate 301 after described
Angle.
The driving mechanism 4 is a driving cylinder, drives the cylinder body of cylinder fixed with bottom plate 1 by a positioning pedestal 5, drives
Take offence cylinder piston rod and limit plate 303 it is fixed.
The bottom plate 1 is equipped with the thrust plate 6 for preventing ball valve 7 from retreating, and the thrust plate 6 is located at two locating supports
2 sides far from driving mechanism 4.
The bottom plate 1 is equipped with the guiding mechanism of limit plate 303, and the guiding mechanism is polished rod mechanism or sliding track mechanism.
Sealing plate 301 is equipped with rear gas-flow closure circle 305 and the inflator for the inflation of rear gas-flow closure circle 305 after described
Structure 8 is equipped with the rear sealing ring limiting slot for gas-flow closure circle 305 after accommodating, institute in sealing plate 301 circumferential side wall after described
Rear gas-flow closure circle 305 is stated to be located in rear sealing ring limiting slot.
The inflation mechanism 8 includes a small arc cylinder 814, a big arc cylinder 815, a shaft 816 and a rotating bar
817, the small arc cylinder 814, big arc cylinder 815 and shaft 816 are both positioned on the trailing flank of rear sealing plate 301, are turned
Axis 816 can rotation and pivot center it is vertical with the trailing flank of rear sealing plate 301, the rotating bar 817 is located in shaft 816 simultaneously
It can be rotated with shaft 816, be successively arranged small arc cylinder 814 and big arc cylinder 815 and small arc outward centered on shaft 816
The center of circle of shape cylinder 814 and the center of circle of big arc cylinder 815 are respectively positioned on the central axis of shaft 816；In small arc cylinder 814
The small arc piston rod c819 being connect equipped with piston c818 and with piston c818, be equipped in big arc cylinder 815 piston d820 and
The big arc piston rod d821 connecting with piston d820, the small arc piston rod c819 are reversely set with big arc piston rod d821
It sets, is stretched out from the opposite end of corresponding cylinder body, and the other end of small arc piston rod c819 and big arc piston rod d821 is distinguished
It is fixed with the both ends of rotating bar 817.
One end that the small arc cylinder 814 does not extend out small arc piston rod c819 is filled with after by a gas channels d14
Airtight 305 inner cavity of seal connection.
The big arc cylinder 815 do not extend out one end of big arc piston rod d821 by a gas channels e15 with it is rear close
The connection of 301 leading flank of sealing plate.
When test, ball valve 7 is located on two locating supports 2, valve seat 701 is located between two locating supports 2, ball valve
The link arm 703 of 7 two sides is respectively engaged on the limited bayonet 201 of two locating supports 2, then the rotation of ball valve valve ball 702 is extremely closed
Closed state.
Start driving mechanism 4, pushes testing agency 3 mobile toward 7 one end port of ball valve, in 3 moving process of testing agency, inspection
The rear sealing plate 301 for surveying mechanism 3 is protruded into from 7 one end port of ball valve, until limit plate 303 and the side end face of ball valve 7 contradict, entirely
Testing agency 3 stops movement, and realizes sealing between 703 inner hole wall of O-ring seal 304 and link arm on rear sealing plate 301, this
When, a sealing test cavity is formd between the rear sealing plate 301 and valve ball 702 inside ball valve 7.
Restart external air source, by aeration aperture 9 toward the sealing test sky interacvity air-filling, so that in sealing test cavity
Air pressure, which reaches, needs atmospheric pressure value to be tested.Meanwhile in gas replenishment process, the gas in the sealing test cavity can pass through gas channels
E15 enters one end cavity that big arc cylinder 815 does not extend out big arc piston rod d821, and then pushes piston d820 mobile, by
It is respectively positioned on the central axis of shaft 816 in the center of circle of small arc cylinder 814 and the center of circle of big arc cylinder 815, therefore, piston
The motion track of d820 and piston c818 is the arching trajectory with shaft 816 for the center of circle.Piston d820 is mobile, passes through big arc
Piston rod d821 transmission, pushes rotating bar 817 to rotate, and 817 other end of rotating bar passes through small arc piston rod c819 transmission again, pushes away
Piston c818 is mobile.In piston c818 moving process, small arc cylinder 814 can be compressed and do not extend out small arc piston rod c819
One end cavity, and the compressed cavity is connected to by gas channels d14 with rear gas-flow closure circle 305, therefore, rear gas-flow closure
Circle 305 is bonded with 703 inner hole wall of link arm by compression swelling and realizes secondary seal.Also, lever principle is utilized in the inflation mechanism 8,
When piston d820 and piston c818 reach balance, not when moving, since small arc cylinder 814 is closer from shaft 816,
The arm of force of piston c818 be less than piston d820 the arm of force, and piston c818 than piston d820 by bigger power, in small arc gas
In the situation identical with big 815 cylinder diameter of arc cylinder of cylinder 814, can further it learn, small arc cylinder 814 does not extend out small arc
Air pressure in one end cavity of piston rod c819 is greater than one end cavity that big arc cylinder 815 does not extend out big arc piston rod d821
Interior air pressure, i.e. air pressure afterwards in gas-flow closure circle 305 are greater than the measuring air pressure in sealing test cavity, to be able to achieve more preferable
Ground sealing.And measuring air pressure increases, the air pressure in rear gas-flow closure circle 305 can also increase with it.Prevent measuring air pressure excessive,
The problem of O-ring seal 304 can not achieve sealing.
When the air pressure in sealing test cavity is charged to test desirable value, and to reach balance motionless by piston d820 and piston c818
When, external air source is cut off, air pressure test equipment is recycled to monitor the air pressure change feelings in sealing test cavity by instrument connection 10
Condition can determine whether the side chamber body of ball valve 7 with the presence or absence of leakage.
After being completed, to be let out by aeration aperture 9 except the air pressure in sealing test cavity, rotating bar 817 will rotate backward,
Gas-flow closure circle 305 will reduce afterwards, until being detached from 703 inner hole wall of link arm, can bounce back testing agency 3, prepare next round
Test.
Example IV
Referring to Figure 16, a kind of PE ball valve detection device described in the present embodiment includes at least a bottom plate 1, sets on the bottom plate 1
There are two 2, testing agencies 3 of locating support and a driving mechanism 4,2, testing agencies 3 of described two locating supports
And a driving mechanism 4 is respectively positioned on same straight line, testing agency 3 can be moved laterally by the driving of driving mechanism 4.
There are the gap of accommodating ball seat 701 between described two locating supports 2, the top of two locating supports 2 is equal
Equipped with the limited bayonet 201 for positioning ball valve link arm 703.
The testing agency 3 successively include from front to back sealing plate 301 after sealing plate 306, a positioning column 307, one before one,
One connecting rod 302 and a limit plate 303, it is fixed by positioning column 307 between preceding sealing plate 306 and rear sealing plate 301, it is rear to seal
Fixed by connecting rod 302 between plate 301 and limit plate 303, the leading flank of preceding sealing plate 306 is arranged towards locating support 2, limit
The trailing flank of position plate 303 is connect with driving mechanism 4, and preceding sealing plate 306 and rear sealing plate 301 are plectane and coaxial arrangement, preceding
The O-ring seal 304 for 7 inner wall of seal ball-valve is equipped in the circumferential side wall of sealing plate 306 and rear sealing plate 301, it is rear close
It is equipped with aeration aperture 9 and instrument connection 10 through front and rear wall on sealing plate 301, the aeration aperture 9 is connect by tracheae with external air source, institute
Instrument connection 10 is stated to connect by tracheae with air pressure test equipment.
The preceding sealing plate 306 is identical with the diameter of rear sealing plate 301.
The driving mechanism 4 is a driving cylinder, drives the cylinder body of cylinder fixed with bottom plate 1 by a positioning pedestal 5, drives
Take offence cylinder piston rod and limit plate 303 it is fixed.
The bottom plate 1 is equipped with the thrust plate 6 for preventing ball valve 7 from retreating, and the thrust plate 6 is located at two locating supports
2 sides far from driving mechanism 4.
The bottom plate 1 is equipped with the guiding mechanism of limit plate 303, and the guiding mechanism is polished rod mechanism or sliding track mechanism.
The preceding sealing plate 306 is equipped with preceding gas-flow closure circle 308, and the rear sealing plate 301 is equipped with rear gas-flow closure
Circle 305 and the inflation mechanism 8 inflated for front and back gas-flow closure circle；It is equipped with and is used in 306 circumferential side wall of preceding sealing plate
The preceding sealing ring limiting slot of gas-flow closure circle 308, the preceding gas-flow closure circle 308 are located in preceding sealing ring limiting slot before accommodating；
The rear sealing ring limiting slot for gas-flow closure circle 305 after accommodating is equipped with after described in 301 circumferential side wall of sealing plate, after described
Gas-flow closure circle 305 is located in rear sealing ring limiting slot；It is set in the preceding sealing plate 306, positioning column 307 and rear sealing plate 301
There is the gas channels c13 for being connected to preceding gas-flow closure circle 308 and rear gas-flow closure circle 305.
The inflation mechanism 8 includes a small arc cylinder 814, a big arc cylinder 815, a shaft 816 and a rotating bar
817, the small arc cylinder 814, big arc cylinder 815 and shaft 816 are both positioned on the trailing flank of rear sealing plate 301, are turned
Axis 816 can rotation and pivot center it is vertical with the trailing flank of rear sealing plate 301, the rotating bar 817 is located in shaft 816 simultaneously
It can be rotated with shaft 816, be successively arranged small arc cylinder 814 and big arc cylinder 815 and small arc outward centered on shaft 816
The center of circle of shape cylinder 814 and the center of circle of big arc cylinder 815 are respectively positioned on the central axis of shaft 816；In small arc cylinder 814
The small arc piston rod c819 being connect equipped with piston c818 and with piston c818, be equipped in big arc cylinder 815 piston d820 and
The big arc piston rod d821 connecting with piston d820, the small arc piston rod c819 are reversely set with big arc piston rod d821
It sets, is stretched out from the opposite end of corresponding cylinder body, and the other end of small arc piston rod c819 and big arc piston rod d821 is distinguished
It is fixed with the both ends of rotating bar 817.
One end that the small arc cylinder 814 does not extend out small arc piston rod c819 is filled with after by a gas channels d14
Airtight 305 inner cavity of seal connection.
The big arc cylinder 815 do not extend out one end of big arc piston rod d821 by a gas channels e15 with it is rear close
The connection of 301 leading flank of sealing plate.
When test, ball valve 7 is located on two locating supports 2, valve seat 701 is located between two locating supports 2, ball valve
The link arm 703 of 7 two sides is respectively engaged on the limited bayonet 201 of two locating supports 2, then the rotation of ball valve valve ball 702 is extremely beaten
Open state.
Start driving mechanism 4, pushes testing agency 3 mobile toward 7 one end port of ball valve, in 3 moving process of testing agency, inspection
The preceding sealing plate 306 and rear sealing plate 301 for surveying mechanism 3 are successively protruded into from 7 one end port of ball valve, until limit plate 303 and ball valve 7
The side end face contradicts, and entire testing agency 3 stops movement, and the O-ring seal 304 on preceding sealing plate 306 and rear sealing plate 301
Sealing is realized between 703 inner hole wall of link arm, at this point, preceding sealing plate 306 and rear sealing plate 301 are located at 702 two sides of valve ball,
A sealing test cavity is formd between preceding sealing plate 306 and rear sealing plate 301 inside ball valve 7.
Restart external air source, by aeration aperture 9 toward the sealing test sky interacvity air-filling, so that in sealing test cavity
Air pressure, which reaches, needs atmospheric pressure value to be tested.Meanwhile in gas replenishment process, the gas in the sealing test cavity can pass through gas channels
E15 enters one end cavity that big arc cylinder 815 does not extend out big arc piston rod d821, and then pushes piston d820 mobile, by
It is respectively positioned on the central axis of shaft 816 in the center of circle of small arc cylinder 814 and the center of circle of big arc cylinder 815, therefore, piston
The motion track of d820 and piston c818 is the arching trajectory with shaft 816 for the center of circle.Piston d820 is mobile, passes through big arc
Piston rod d821 transmission, pushes rotating bar 817 to rotate, and 817 other end of rotating bar passes through small arc piston rod c819 transmission again, pushes away
Piston c818 is mobile.In piston c818 moving process, small arc cylinder 814 can be compressed and do not extend out small arc piston rod c819
One end cavity, and the compressed cavity is connected to by gas channels d14 with rear gas-flow closure circle 305, therefore, rear gas-flow closure
305 are enclosed by compression swelling, meanwhile, also it can enter preceding gas-flow closure circle 308 by gas channels c13, so that preceding gas-flow closure circle 308
Expansion, until two gas-flow closure circles are bonded with 703 inner hole wall of two sides link arm realizes secondary seal.Also, 8 benefit of inflation mechanism
With lever principle, when piston d820 and piston c818 reaches balance, not when moving, since small arc cylinder 814 is from shaft
816 is closer, and therefore, the arm of force of piston c818 is less than the arm of force of piston d820, and piston c818 than piston d820 by bigger
Power can further be learnt, small arc cylinder in small arc cylinder 814 situation identical with big 815 cylinder diameter of arc cylinder
814 air pressures for not extending out in one end cavity of small arc piston rod c819 are greater than big arc cylinder 815 and do not extend out big arc piston
Air pressure in one end cavity of bar d821, i.e., the air pressure in preceding gas-flow closure circle 308 and rear gas-flow closure circle 305 are greater than sealing and survey
The measuring air pressure in cavity is tried, is preferably sealed to be able to achieve.And measuring air pressure increases, preceding gas-flow closure circle 308 is filled with after
Air pressure in airtight seal 305 can also increase with it.Prevent measuring air pressure excessive, O-ring seal 304 can not achieve sealing
Problem.
When the air pressure in sealing test cavity is charged to test desirable value, and to reach balance motionless by piston d820 and piston c818
When, external air source is cut off, air pressure test equipment is recycled to monitor the air pressure change feelings in sealing test cavity by instrument connection 10
Condition can determine whether the whole chamber of ball valve 7 with the presence or absence of leakage.
After being completed, to be let out by aeration aperture 9 except the air pressure in sealing test cavity, rotating bar 817 will rotate backward,
Preceding gas-flow closure circle 308 and rear gas-flow closure circle 305 will reduce, until being detached from 703 inner hole wall of link arm, can bounce back detection
Mechanism 3 prepares next round test.
Claims (9)
1. a kind of PE ball valve detection device, it is characterised in that: include at least a bottom plate (1), set on the bottom plate (1) there are two
Locating support (2), a testing agency (3) and a driving mechanism (4), described two locating supports (2), a testing agency
(3) and a driving mechanism (4) is respectively positioned on same straight line, and testing agency (3) can make lateral shifting by driving mechanism (4) driving
It is dynamic；
There are the gap of accommodating ball seat (701), the tops of two locating supports (2) between described two locating supports (2)
It is equipped with the limited bayonet (201) for positioning ball valve link arm (703)；
The testing agency (3) successively includes sealing plate (301), a connecting rod (302) and a limit plate after one from front to back
(303), fixed by connecting rod (302) between rear sealing plate (301) and limit plate (303), the leading flank of rear sealing plate (301)
It is arranged towards locating support (2), the trailing flank of limit plate (303) is connect with driving mechanism (4), and rear sealing plate (301) is plectane,
The circumferential side wall of sealing plate (301) is equipped with the O-ring seal (304) for seal ball-valve (7) inner wall, rear sealing plate afterwards
(301) it is equipped with aeration aperture (9) and instrument connection (10) through front and rear wall on, the aeration aperture (9) is connected by tracheae and external air source
It connects, the instrument connection (10) is connect by tracheae with air pressure test equipment.
2. a kind of PE ball valve detection device according to claim 1, it is characterised in that: after described before sealing plate (301)
Lateral edge is equipped with the chamfering or fillet that ball valve (7) port is protruded into convenient for rear sealing plate (301).
3. a kind of PE ball valve detection device according to claim 1, it is characterised in that: the driving mechanism (4) is a drive
It takes offence cylinder, drives the cylinder body of cylinder fixed by a positioning pedestal (5) and bottom plate (1), drive the piston rod and limit plate of cylinder
(303) fixed.
4. a kind of PE ball valve detection device according to claim 1, it is characterised in that: the bottom plate (1) is equipped with and is used for
The thrust plate (6) for preventing ball valve (7) from retreating, the thrust plate (6) are located at two locating supports (2) far from driving mechanism (4)
Side.
5. a kind of PE ball valve detection device according to claim 1, it is characterised in that: the bottom plate (1) is equipped with limit
The guiding mechanism of plate (303), the guiding mechanism are polished rod mechanism or sliding track mechanism.
6. a kind of PE ball valve detection device according to claim 1, it is characterised in that: set on sealing plate (301) after described
There are rear gas-flow closure circle (305) and the inflation mechanism (8) for the inflation of rear gas-flow closure circle (305), the rear sealing plate (301)
The rear sealing ring limiting slot for gas-flow closure circle (305) after accommodating, the rear gas-flow closure circle are equipped in circumferential side wall
(305) it is located in rear sealing ring limiting slot；
The inflation mechanism (8) is turned over including a small pressure cylinder (801), a big pressure cylinder (802), a strut (803) and one
Bull stick (804), the small pressure cylinder (801), big pressure cylinder (802) and strut (803) are each attached to rear sealing plate (301)
Trailing flank on, strut (803) is between small pressure cylinder (801) and big pressure cylinder (802), small pressure cylinder (801)
Spacing between strut (803) is greater than the spacing between big pressure cylinder (802) and strut (803)；Sealing plate after described
(301) the gas channels a(11 for being connected to big pressure cylinder (802) inner cavity and rear gas-flow closure circle (305) inner cavity is equipped in), and
It is connected to the gas channels b(12 of small pressure cylinder (801) inner cavity and rear sealing plate (301) leading flank)；
The turning rod (804) is hinged on strut (803), after the pivot center of turning rod (804) and rear sealing plate (301)
Side is parallel；
Equipped with piston a(805) and the piston rod a(806 being connect with piston a(805) in small pressure cylinder (801)), piston a
(805) cooperation, piston rod a(806 are slidingly sealed with small pressure cylinder (801) inner wall) one end and piston a(805) fixation, it is another
End is equipped with slide-bar a(807), turning rod (804) is equipped with the slideway a(808 being slidably matched with slide-bar a(807))；
Equipped with piston b(809) and the piston rod b(810 being connect with piston b(809) in big pressure cylinder (802)), piston b
(809) cooperation, piston rod b(810 are slidingly sealed with big pressure cylinder (802) inner wall) one end and piston b(809) fixation, it is another
End is equipped with slide-bar b(811), turning rod (804) is equipped with the slideway b(812 being slidably matched with slide-bar b(811)).
7. a kind of PE ball valve detection device according to claim 6, it is characterised in that: in the big pressure cylinder (802)
Equipped with for replying piston b(809) compressed spring (813).
8. a kind of PE ball valve detection device, it is characterised in that: include at least a bottom plate (1), set on the bottom plate (1) there are two
Locating support (2), a testing agency (3) and a driving mechanism (4), described two locating supports (2), a testing agency
(3) and a driving mechanism (4) is respectively positioned on same straight line, and testing agency (3) can make lateral shifting by driving mechanism (4) driving
It is dynamic；
There are the gap of accommodating ball seat (701), the tops of two locating supports (2) between described two locating supports (2)
It is equipped with the limited bayonet (201) for positioning ball valve link arm (703)；
The testing agency (3) successively includes sealing plate after sealing plate (306), a positioning column (307), one before one from front to back
(301), a connecting rod (302) and a limit plate (303), pass through positioning column between preceding sealing plate (306) and rear sealing plate (301)
(307) fixed, it is fixed by connecting rod (302) between rear sealing plate (301) and limit plate (303), before preceding sealing plate (306)
Side is arranged towards locating support (2), and the trailing flank of limit plate (303) connect with driving mechanism (4), preceding sealing plate (306) and
Sealing plate (301) is plectane and coaxial arrangement afterwards, is all provided in the circumferential side wall of preceding sealing plate (306) and rear sealing plate (301)
There is the O-ring seal (304) for seal ball-valve (7) inner wall, runs through front and rear wall on rear sealing plate (301) and be equipped with aeration aperture (9)
With instrument connection (10), the aeration aperture (9) is connect by tracheae with external air source, and the instrument connection (10) passes through tracheae and air pressure
Test equipment connection.
9. a kind of PE ball valve detection device according to claim 8, it is characterised in that: the preceding sealing plate (306) and after
The diameter of sealing plate (301) is identical.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010361092.1A CN111504574A (en) | 2019-01-30 | 2019-01-30 | PE ball valve detection device |
| CN201910090857.XA CN109540420B (en) | 2019-01-30 | 2019-01-30 | PE ball valve detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910090857.XA CN109540420B (en) | 2019-01-30 | 2019-01-30 | PE ball valve detection device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010361092.1A Division CN111504574A (en) | 2019-01-30 | 2019-01-30 | PE ball valve detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109540420A true CN109540420A (en) | 2019-03-29 |
| CN109540420B CN109540420B (en) | 2021-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010361092.1A Withdrawn CN111504574A (en) | 2019-01-30 | 2019-01-30 | PE ball valve detection device |
| CN201910090857.XA Active CN109540420B (en) | 2019-01-30 | 2019-01-30 | PE ball valve detection device |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010361092.1A Withdrawn CN111504574A (en) | 2019-01-30 | 2019-01-30 | PE ball valve detection device |
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| CN (2) | CN111504574A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115307835A (en) * | 2022-10-10 | 2022-11-08 | 江苏新恒基特种装备股份有限公司 | Corrugated pipe helium leakage detection test device |
| CN117450318A (en) * | 2023-11-02 | 2024-01-26 | 南通市红星空压机配件制造有限公司 | Valve opening pressure detection equipment and detection method thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112432743B (en) * | 2020-11-05 | 2024-07-30 | 徐州阿卡控制阀门有限公司 | Installation and test fixture of ball valve |
| CN114563143A (en) * | 2022-03-08 | 2022-05-31 | 苏州协同创新智能制造装备有限公司 | Double-station air tightness detection method for ball valve |
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| CN105181273A (en) * | 2015-09-11 | 2015-12-23 | 王国良 | Ball valve detection equipment |
| CN206177535U (en) * | 2016-06-22 | 2017-05-17 | 海门市苍云机械有限公司 | A gas tightness test equipment for valve |
| CN206177534U (en) * | 2016-06-22 | 2017-05-17 | 海门市苍云机械有限公司 | Detection frock of PE valve |
| CN207019850U (en) * | 2017-06-01 | 2018-02-16 | 陈永杰 | A kind of automatic air tightness testing equipment |
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2019
- 2019-01-30 CN CN202010361092.1A patent/CN111504574A/en not_active Withdrawn
- 2019-01-30 CN CN201910090857.XA patent/CN109540420B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181273A (en) * | 2015-09-11 | 2015-12-23 | 王国良 | Ball valve detection equipment |
| CN206177535U (en) * | 2016-06-22 | 2017-05-17 | 海门市苍云机械有限公司 | A gas tightness test equipment for valve |
| CN206177534U (en) * | 2016-06-22 | 2017-05-17 | 海门市苍云机械有限公司 | Detection frock of PE valve |
| CN207019850U (en) * | 2017-06-01 | 2018-02-16 | 陈永杰 | A kind of automatic air tightness testing equipment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115307835A (en) * | 2022-10-10 | 2022-11-08 | 江苏新恒基特种装备股份有限公司 | Corrugated pipe helium leakage detection test device |
| CN117450318A (en) * | 2023-11-02 | 2024-01-26 | 南通市红星空压机配件制造有限公司 | Valve opening pressure detection equipment and detection method thereof |
| CN117450318B (en) * | 2023-11-02 | 2024-07-26 | 南通市红星空压机配件制造有限公司 | Valve opening pressure detection equipment and detection method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111504574A (en) | 2020-08-07 |
| CN109540420B (en) | 2021-01-29 |
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