CN105570583B - A kind of live testing interface structure - Google Patents
A kind of live testing interface structure Download PDFInfo
- Publication number
- CN105570583B CN105570583B CN201610112510.7A CN201610112510A CN105570583B CN 105570583 B CN105570583 B CN 105570583B CN 201610112510 A CN201610112510 A CN 201610112510A CN 105570583 B CN105570583 B CN 105570583B
- Authority
- CN
- China
- Prior art keywords
- valve
- opening
- return valve
- ball
- valve body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 52
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 230000006835 compression Effects 0.000 claims abstract description 4
- 238000007906 compression Methods 0.000 claims abstract description 4
- 238000001125 extrusion Methods 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims description 17
- 238000012856 packing Methods 0.000 claims description 5
- 239000007789 gas Substances 0.000 description 28
- 210000003660 reticulum Anatomy 0.000 description 24
- 238000005096 rolling process Methods 0.000 description 9
- 238000005299 abrasion Methods 0.000 description 4
- 208000002925 dental caries Diseases 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010052428 Wound Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000012491 analyte Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L29/00—Joints with fluid cut-off means
- F16L29/02—Joints with fluid cut-off means with a cut-off device in one of the two pipe ends, the cut-off device being automatically opened when the coupling is applied
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
- Check Valves (AREA)
Abstract
The present invention provides a kind of live testing interface structure, including：Valve body, with inner chamber, inner chamber has the first opening connected with non-return valve, and the second opening；Connector, with cavity, and three connected with cavity are exported, and first outlet is connected with the second opening sealing, are provided with second outlet in pressure gauge, the 3rd outlet and are provided with ball valve, and ball valve has the 4th to export, connected with test equipment；Valve element, installed in inner cavity, can be such that the second opening is connected with non-return valve or the second opening is connected with non-return valve cut-out；Long strip through hole, is opened on valve body lateral wall and is connected with inner chamber；Pushing part, is arranged on valve element, and stretches out valve body through long strip through hole；Actuator, can move axially along valve body and have the drive division for driving pushing part；Abrasion-proof structure, is arranged between drive division and pushing part, for the screw extrusion driving of drive division to be converted into axial compression driving.The live testing interface structure of the present invention is simple for structure, and good seal performance.
Description
Technical field
The present invention relates to gas test interfacing field, and in particular to a kind of live testing interface structure.
Background technology
Current most of charger (such as SF6Charger) interface use spring check valve arrangement.Spring
Non-return valve can effectively prevent the leakage of gas indoor gas.In order to which the gas micro water content to charger and gas composition are carried out
Test, is usually that in rotary course, its inside is pushed up by test interface screw thread rotation to spring non-return valve in the prior art
Pin progressively pushes up out spring check valve core, once external screw thread advances in place, valve element will be fully open, now just can be by even
Test pipeline, pressure-reducing valve, tester for connecing etc. are to measuring the micro-water content of gas indoor gas, analyzing gas analyte.Test
Cheng Hou, by test interface reversely progressively rotation resign from office, under normal circumstances, spring non-return valve inner spool progressively close until
Completely close in place, terminate test.If but the minute impurities for occurring containing in gas are just charged to valve port, or gas in valve
Turbulent flow is formed around mouthful, it is possible to spring check valve core can be caused to close not in place, cause gas indoor gas largely to leak.
But test interface of the prior art typically can not detect whether spring non-return valve completely closes, thus also can not just shift to an earlier date
Know whether to have the leakage of SF6 gases, and largely leakage often causes serious consequence to SF6 gases, and bring severe compromise,
Thus typically it is both needed to be tested again after having a power failure in the prior art.
Chinese patent literature CN104251355A discloses a kind of anti-leak gas live testing interface, as shown in figure 1, bag
Valve body 01 is included, valve body 01 has hollow cavity 010, and hollow cavity 010 has be suitable to be sealedly and fixedly connected with non-return valve first
It has been moveably mounted out inside opening 011, and the second opening 012 suitable for being tightly connected with testing tool, hollow cavity 010
Part 02 is closed, the side of switch member 02 towards the first opening, which is provided with thimble 021, the lateral wall of valve body 01, is further opened with long strip through hole
013, switch member 02 is provided with the pushing part 022 that valve body 01 is stretched out from long strip through hole 013, and the outer wall of valve body 01 is provided with external screw thread,
Annular impeller 03 is set on the outer wall of valve body 01, and long strip through hole 013 is covered completely, and annular impeller 03 has and promotion
The first relative promotion face 031 of portion 022, when annular impeller 03 rotates on the outer wall of valve body 01 and (is illustrated to non-return valve direction
Left) it is mobile when, promote face 031 to promote pushing part 022 by first, and then pull switch part 02 is moved to non-return valve direction,
Thimble 021 is set to push up out non-return valve；In rotary annular impeller 03, in order to avoid driving switch member 02 to rotate, first
Annular slab 05 is additionally provided between promotion face 031 and pushing part 022, annular slab 05 and first promotes matching on face 031 to be provided with annular
Some balls 052 are installed in rolling groove 051, annular rolling groove 051；When annular impeller 03 rotates on valve body 01, push away
Dynamic annular slab 05 is moved to non-return valve direction, because annular slab 05 is not rotated or rotation amount very little, when annular slab 05 is promoted
During pushing part 022, pushing part 022 will not be promoted to rotate；In addition, in order to avoid ball 052 is deviate from out of annular rolling groove 051,
The first spring 041 is additionally provided with, for promoting the direction of face 031 to push against pushing part to first, and then makes annular slab 05 all the time with first
Promotion face 031 is in close contact；Moreover, in annular impeller 03 to when being moved away from non-return valve side, in order to ensure switch member 02
It can from inside to outside deviate from from non-return valve, be additionally provided with all the time to the second spring 042 away from non-return valve direction Drawing switch part 02.
Above-mentioned patent is the innovation and creation of inventor oneself, but in concrete practice, inventor has found, this kind test connects
Include three springs in the structure of mouth, structure is relatively complicated, assembling difficulty is big, efficiency is low；Moreover, working as the first of the interface
When opening 011 is tightly connected by bonnet 06 and non-return valve, mainly by the end face and the end face of non-return valve of the first opening 011
Crush seal, but when not enough smooth or both the not enough matching of any one in two end faces, easily occur sealing not
Tight the problem of；In addition, during interface is installed on non-return valve, valve body 01 is motionless, it is necessary to rotate bonnet 06, and
This rotary squeezing, causes the poor sealing performance between the outward flange of the opening of bonnet 06 and first 011, once above-mentioned two end face
Between it is poorly sealed, gas leak phenomenon will occur between bonnet 06 and outward flange.
The content of the invention
Therefore, the technical problem to be solved in the present invention is to overcome test interface structure of the prior art cumbersome and close
The technological deficiency of sealing property difference, so that provide a kind of simple for structure, and the live testing interface structure of good seal performance.
Therefore, the present invention provides a kind of live testing interface structure, including：
Valve body, with inner chamber, the inner chamber has the first opening for being used to connect with non-return valve, and is used for and test equipment
Second opening of connection；
Connector, with cavity, and the first outlet connected with the cavity, second outlet and the 3rd outlet, it is described
First outlet is used to connect with the described second opening sealing, and pressure gauge, the 3rd outlet position are provided with the second outlet
Put and ball valve is installed, ball valve has the 4th outlet, the described 4th exports for being connected with test equipment；
Valve element, is movably mounted at the inner cavity, with heading into inside the non-return valve to open the check
Valve, the first position for making second opening be connected with the non-return valve, and extract described to close out inside the non-return valve
Non-return valve, makes second opening cut off the second place connected with the non-return valve；
Long strip through hole, is opened on the valve body lateral wall, and connected with the inner chamber by least one；
Pushing part, is arranged on the valve element by least one, and stretches out the valve body through the long strip through hole；
Actuator, thread set can be moved axially along the valve body in rotary manner on the valve outer wall, and
With the drive division for driving the pushing part；
Also include abrasion-proof structure, be arranged between the drive division and the pushing part, for by the drive division to institute
The screw extrusion driving for stating pushing part is converted into axial compression driving.
As a kind of preferred scheme, the abrasion-proof structure includes：
Backing plate, is set in the valve element periphery, and positioned between the drive division and the pushing part；
Ball installation cavity, with several, is circumferentially positioned on the backing plate, and be respectively provided with towards the drive division
One side opening；
Ball, inside the ball installation cavity and can not deviate from, and the part of the ball is from first side
Outward opening is protruded and contacted with the drive division.
As a kind of preferred scheme, the drive division is provided with the annular groove for being used for rolling for the ball.
As a kind of preferred scheme, the excircle of the backing plate is provided with external screw thread, the actuator with the backing plate
The relative inwall of excircle is provided with the internal thread matched with the external screw thread.
As a kind of preferred scheme, the ball installation cavity also has the second side opening towards the pushing part, described
Ball is fit into after the ball installation cavity, and some is outstanding from the second side opening position.
As a kind of preferred scheme, in addition to packing ring, the valve element periphery is set in, and be located at the pushing part and described
Between backing plate.
As a kind of preferred scheme, the valve element is arranged between first opening and second opening, the valve
Being provided between the outer wall of core inner and/or the valve element and the inwall of the valve body is used to connect first opening and described the
The passage of two openings；The covering long strip through hole is fully sealed in the actuator all the time.
As a kind of preferred scheme, the valve outer wall close to the described first opening is provided with First terrace, is arranged
Bonnet on the valve body has the second step face mutually stopped with the First terrace, and the bonnet, which is provided with, to be used for
The screw thread being fixedly connected with the non-return valve；
When the bonnet is connected with the non-return valve, the valve body is driven to be moved to the non-return valve direction, and then make institute
State the end of valve body and the non-return valve crush seal.
As a kind of preferred scheme, clamp nut is also arranged with the valve outer wall, positioned at the bonnet and the drive
Between moving part, the clamp nut can be moved axially along the valve body, to extrude the bonnet, make the First terrace and
Second step face crush seal.
As a kind of preferred scheme, on the outer wall of the close actuator of the clamp nut, provided with can with it is described
Actuator inwall coordinates the screw thread being spirally connected.
The live testing interface structure that the present invention is provided, with advantages below：
1. the live testing interface structure of the present invention, abrasion-proof structure is provided between actuator and pushing part, works as driving
Part is rotated on valve outer wall, and is promoted pushing part by drive division and then promoted valve element to be moved to the direction close to non-return valve
When, the abrasion-proof structure drive division can be converted to the rotation of pushing part driving it is axially driving so that drive division and promotion
Frictional force between portion is substantially reduced, and reduces abrasion, improves the service life of equipment；Needing valve element out of non-return valve
When portion is extracted out, it is only necessary to move actuator to the direction away from non-return valve, valve element is in the gas pressure discharged inside non-return valve
Under effect, the second place will be switched to by first position automatically；The abrasion-proof structure of the present invention, with test interface of the prior art
Compare, spring is not provided between the side of the close non-return valve side of pushing part and long strip through hole inwall, and without all the time to remote
From the second spring that non-return valve side pulls valve element, thus simple for structure, assembly difficulty is low, and production efficiency is high；
When opening non-return valve using actuator driving valve element, gas is successively through the opening of non-return valve-the first-passage-the second
Opening-first outlet-the three is exported to export with the 4th and supplied to test equipment, is supplied or is detected after finishing, first by driving
Part driving valve element closes non-return valve, is then shut off ball valve, if now manometric registration keeps stabilization not change, then it represents that
Non-return valve is thoroughly closed；If now there is change and indicate that pressure rises in manometric registration, then it represents that non-return valve is not thorough
Bottom is closed, and there is gas leak phenomenon, is now accomplished by driving valve element to switch a non-return valve again by actuator, is made non-return valve thorough
Close, if through it is above-mentioned switch a non-return valve again after, pressure gauge registration can keep stable and no longer change, then it represents that inverse
Only valve is thoroughly closed, and is otherwise accomplished by repeating the above steps again, and this detection adjustment process can ensure that non-return valve is complete
Contract fully, it is to avoid gases did escape.
2. the live testing interface structure of the present invention, abrasion-proof structure includes backing plate, backing plate is provided with some ball installation cavitys,
Ball is installed in ball installation cavity, and ball a part by be located at ball installation cavity towards the first of drive division side
Side opening is protruded, and is contacted with drive division；Work as rotary drive, make its to close to first opening side move when, actuator
Drive division and ball contact, the rotation of drive division can only drive ball to roll, without driving backing plate to rotate, in actuator gradually
During close to pushing part, ball is pushed axially pushing part by backing plate and moved to the direction close to non-return valve, and then
Valve element top is set to open non-return valve.
3. the live testing interface structure of the present invention, be additionally provided with external screw thread on the excircle of backing plate, actuator and backing plate
The relative inwall of excircle is provided with the internal thread matched with external screw thread；Backing plate is arranged on actuator in the way of screw thread coordinates
Inside, can not only ensure the relative position between ball and drive division, make preferably coordinate between ball and drive division
Motion, and when the driver is turned, backing plate will not be driven to rotate together.
4. the second side opening of pushing part is provided with the live testing interface structure of the present invention, ball installation cavity, rolling
After pearl is fit into, some is outstanding at the second side opening, and the part of the protrusion is contacted with pushing part, works as rotation
Actuator, make its to the side close to the first opening move when, the drive division of actuator and the side opening of stretching first of ball
Part is contacted, and pushing part is contacted with the part of the side opening of stretching second of ball, so that drive division be squeezed to the rotation of pushing part
Pressure driving is converted into the roll drive of ball, and force direction is, towards the axial direction of the first opening direction, so equally can
The pivoting friction between drive division and pushing part is avoided, abrasion can be reduced, service life of equipment is improved.Further, can be with
Packing ring is set up between pushing part and backing plate, pushing part is further protected, the rolling friction between pushing part and ball is reduced.
5. the live testing interface structure of the present invention, valve core inside is provided with leading to for being open for the opening of connection first and second
Road, the setting of the passage can also be played a part of reducing valve element weight, and when needing valve element to be extracted out inside non-return valve, weight is small
Valve element be more easy to be blown out by gas pressure.
6. the live testing interface structure of the present invention, is also arranged with clamp nut, the clamp nut energy on valve outer wall
It is enough to be moved axially along valve body, to extrude bonnet to the first opening direction, make the sealing between First terrace and second step face
It is even closer, effective；When rotation bonnet makes end with non-return valve crush seal, if can not match completely between the two,
There can be gas leak phenomenon, if now the sealing at First terrace and second step face can not meet requirement, can not carry out
Test；Bonnet of the prior art is jam-packed First terrace and second step face by way of rotation forward, but this
The sealing that revolving jam-packed mode is realized, seal degree is poor, tends not to meet requirement, the present invention is by setting up fastening spiral shell
Mother, when needing to realize high-seal between First terrace and second step face, rotatable clamp nut extrudes bonnet, along axle
Exerted a force simultaneously to bonnet and valve body, can reach very high tightness degree, so make First terrace and second step face it
Between sealing meet seal request.
7. the live testing interface structure of the present invention, the side outer wall of clamp nut towards actuator is provided with can be with drive
The screw thread that the inner thread of moving part coordinates, such setting can reduce the volume of test interface, make equipment compacter.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme in prior art or the specific embodiment of the invention, below to existing skill
Accompanying drawing used in art or embodiment description is briefly described, it should be apparent that, for ordinary skill people
For member, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structure principle chart of live testing interface in the prior art.
Fig. 2 is the structure principle chart of live testing interface structure in the embodiment of the present invention.
Fig. 3 is that Fig. 2 gets rid of the structure chart after connector and pressure gauge.
Fig. 4 is Fig. 3 A-A direction views.
Fig. 5 is the schematic enlarged-scale view of part A in Fig. 3.
Reference：01- valve bodies, 010- hollow cavities, 011- first is open, and 012- second is open, 013- long strip through hole,
02- switch members, 021- thimbles, 022- pushing parts, 03- annular impellers, 031- first promotes face, the springs of 041- first, 042-
Second spring, 05- annular slabs, 051- annular rolling grooves, 052- balls, 06- bonnets；
1- valve bodies, 10- inner chambers, 11- first is open, and 12- second is open, 13- long strip through hole, 14- ends, 2- valve elements, 21-
Pushing part, 22- thimbles, 3- actuators, 31- drive divisions, 32- annular grooves, 41- backing plates, 42- ball installation cavitys, 421- first
Side opening, the side openings of 422- second, 43- balls, 5- packing rings, 6- passages, 71- First terraces, 8- bonnets, 81- second steps
Face, 9- clamp nuts；100- connectors, 101- first outlets, 102- second outlets, 103- the 3rd is exported, 104- cavitys, 105-
Pressure gauge, 106- ball valves, 107- the 4th is exported.
Embodiment
Technical scheme is described with reference to Figure of description, it is clear that following embodiments is not this
Invent whole embodiments.Based on embodiment described in the invention, those of ordinary skill in the art are not making other wounds
The every other embodiment obtained under the premise of the property made work, belongs to protection scope of the present invention.
It should be noted that in the description of the invention, term " first ", " second " are only used for describing purpose, and can not
It is interpreted as indicating or implying relative importance.In addition, technology involved in invention described below different embodiments
As long as feature does not constitute conflict and can just be combined with each other each other.
Embodiment
The present embodiment provides a kind of live testing interface structure, as shown in Figure 2-5, including：Valve body 1, with inner chamber 10, institute
Stating inner chamber 10 has the first opening 11 for being used to connect with non-return valve, and the second opening 12；Connector 100, with cavity 104,
And the first outlet 101 connected with the cavity 104, the outlet of second outlet 102 and the 3rd 103, the first outlet 101 is used
Connected in the sealing of the described second opening 12, pressure gauge 105, the 3rd outlet 103 are installed in the second outlet 102
Put and ball valve 106 is installed, ball valve 106 has the 4th outlet 107, the 4th outlet 107 is used to connect with test equipment；Valve element
2, it is movably mounted inside the inner chamber 10, with thimble 22, and it is described to open inside the non-return valve with heading into
Non-return valve, the first position for making second opening 12 be connected with the non-return valve, and extract out to close inside the non-return valve
The non-return valve is closed, second opening 12 is cut off the second place connected with the non-return valve；Long strip through hole 13, is at least
One, it is opened on the lateral wall of valve body 1, and connected with the inner chamber 10；Pushing part 21, is arranged on institute by least one
State on valve element 2, and the valve body 1 is stretched out through the long strip through hole 13；Actuator 3, thread set on the outer wall of valve body 1,
It can be moved axially in rotary manner along the valve body 1, and with the drive division 31 for being used to drive the pushing part 21；Also wrap
Include abrasion-proof structure, be arranged between the drive division 31 and the pushing part 21, for by 31 pairs of the drive division it is described promote
The screw extrusion driving in portion 21 is converted into axial compression driving.
The live testing interface structure of the present embodiment, abrasion-proof structure is provided between actuator 3 and pushing part 21, works as drive
Moving part 3 is rotated on the outer wall of valve body 1, and is promoted pushing part 21 by drive division 31 and then promoted valve element 2 to close to non-return valve
When direction is moved, the abrasion-proof structure drive division 31 can be converted to the rotation of pushing part 21 driving it is axially driving so that
Frictional force between drive division 31 and pushing part 21 is substantially reduced, and reduces abrasion, improves the service life of equipment；Needing
When valve element 2 is extracted out inside the non-return valve, it is only necessary to move actuator 3 to the direction away from non-return valve, valve element 2 is from non-return valve
Under the gas pressure effect of inside discharge, the second place will be switched to by first position automatically；Connect with test of the prior art
Mouth is compared, the abrasion-proof structure of the present embodiment, between the side of the close non-return valve side of pushing part 21 and the inwall of long strip through hole 13
It is not provided with spring, and without all the time to the second spring that valve element 2 is pulled away from non-return valve side, thus it is simple for structure, assembling is difficult
Degree is low, and production efficiency is high.
When opening non-return valve using the driving valve element 2 of actuator 3, gas is successively through the opening 11- passages of non-return valve-the first 6-
The outlets 103 of second opening 12- first outlets 101- the 3rd and the 4th outlet 107 are supplied to test equipment, and supply or detection are finished
Afterwards, non-return valve is closed first by the driving valve element 2 of actuator 3, is then shut off ball valve 106, if now the registration of pressure gauge 105 is protected
Keep steady and determine not change, then it represents that non-return valve is thoroughly closed；If now there is change and indicate pressure in the registration of pressure gauge 105
Power rises, then it represents that non-return valve is not closed thoroughly, there is gas leak phenomenon, is now accomplished by driving valve element 2 again by actuator 3
Switch a non-return valve, non-return valve is thoroughly closed, if through it is above-mentioned switch a non-return valve again after, the registration of pressure gauge 105 can
Keep stable and no longer change, then it represents that non-return valve is thoroughly closed, and is otherwise accomplished by repeating the above steps again, this
Planting detection adjustment process can ensure that non-return valve is completely closed, it is to avoid gases did escape.
With reference to shown in Fig. 5, the abrasion-proof structure includes：Backing plate 41, is set in the periphery of valve element 2, and drive positioned at described
Move between portion 31 and the pushing part 21；Ball installation cavity 42, with several, is circumferentially positioned on the backing plate 41, and
With the first side opening 421 towards the drive division 31；Ball 43, installed in the inside of the ball installation cavity 42 and can not take off
Go out, a part for the ball 43 is contacted from first side opening 421 is outstanding with the drive division 31.Work as rotation driving
Part 3, make its to close to first opening 11 side move when, the drive division 31 of actuator 3 is contacted with ball 43, drive division 31
Rotating only can drive ball 43 to roll, without driving backing plate 41 to rotate, in actuator 3 gradually to the close process in pushing part 21
In, ball 43 is pushed axially pushing part 21 by backing plate 41 and moved to the direction close to non-return valve, and then the top of valve element 2 is opened inverse
Only valve.
The drive division 31 is provided with the annular groove 32 for being used for rolling for the ball 43.
The excircle of the backing plate 41 be provided with external screw thread, the actuator 3 it is relative with the excircle of backing plate 41
Inwall is provided with the internal thread matched with the external screw thread.Backing plate 41 is arranged on inside actuator 3 in the way of screw thread coordinates,
The relative position between ball 43 and drive division 31 can not only be ensured, make preferably match somebody with somebody between ball 43 and drive division 31
Resultant motion, and when actuator 3 rotates, backing plate 41 will not be driven to rotate together.
As a kind of deformation program, as shown in figure 5, the ball installation cavity 42 also has the towards the pushing part 21
Two side openings 422, the ball 43 is fit into after the ball installation cavity 42, and some is from second side opening
422 positions are outstanding.When rotary drive 3, make its to the side close to the first opening 11 move when, the driving of actuator 3
Portion 31 is contacted with the part of the first side opening of stretching 421 of ball 43, pushing part 31 and the second side opening of stretching 422 of ball 43
Part contact, so that drive division 31 is converted into the roll drive of ball 43 to the rotation extruding driving of pushing part 21, and
Force direction is, towards the axial direction in the first 11 directions of opening, so can equally to avoid turning between drive division 31 and pushing part 21
Dynamic friction, can reduce abrasion, improve service life of equipment.Further, it can be set up between pushing part 21 and backing plate 41
Packing ring 5, further protection pushing part 21, reduces the rolling friction between pushing part 21 and ball 43.
The valve element 2 is arranged between first opening 11 and second opening 12, and the inside of valve element 2 is provided with use
In the passage 6 for connecting first opening 11 and second opening 12；The covering length is fully sealed in the actuator 3 all the time
Bar through hole 13.The setting of passage 6 can also be played a part of reducing the weight of valve element 2, be extracted out when needing valve element 2 inside non-return valve
When, the small valve element 2 of weight is more easy to be blown out by gas pressure.In the present embodiment the setting of passage 6 unlike the prior art, this implementation
Passage 6 in example is the whole cavity set inside valve element 2, if being offered on the spool end towards non-return valve side
The dry small through hole for connecting cavity and non-return valve, compared with prior art, can substantially reduce the weight of valve element 2, make valve
Core 2 is more easy to be blown.The deformation program designed as passage 6, can also design passage 6 outer wall and the institute in the valve element 2
Between the inwall for stating valve body 1.
The outer wall of the valve body 1 close to the described first opening 11 is provided with First terrace 71, is set on the valve body 1
Bonnet 8 there is the second step face 81 that mutually stops with the First terrace 71, the bonnet 8 be provided be used for it is described
The screw thread that non-return valve is fixedly connected；When the bonnet 8 is connected with the non-return valve, the valve body 1 is driven to the non-return valve side
To movement, and then make the end 14 of the valve body 1 and the non-return valve crush seal.
Clamp nut 9 is also arranged with the outer wall of valve body 1, it is described between the bonnet 8 and the actuator 3
Clamp nut 9 can be moved axially along the valve body 1, to extrude the bonnet 8, make the First terrace 71 and described second
The crush seal of step surface 81.
When rotation bonnet 8 makes end 14 with non-return valve crush seal, if can not match completely between the two, it can deposit
In gas leak phenomenon, if now the sealing at First terrace 71 and second step face 81 can not meet requirement, it can not carry out
Test；The present invention is by setting up clamp nut 9, when needing to realize high-seal between First terrace 71 and second step face 81
When, rotatable clamp nut 9 extrudes bonnet 8, is exerted a force simultaneously to bonnet 8 and valve body 1 vertically, so that the He of First terrace 71
Sealing between second step face 81 meets seal request.
On the outer wall of the close actuator 3 of the clamp nut 9, provided with can coordinate with the inwall of actuator 3
The screw thread being spirally connected, such setting can reduce the volume of test interface, make equipment compacter.
Obviously, above-described embodiment is only intended to clearly illustrate example, and the not restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (8)
1. a kind of live testing interface structure, including：
Valve body (1), with inner chamber (10), the inner chamber (10) has be used to connect with non-return valve first to be open (11), and the
Two openings (12)；
Connector (100), with cavity (104), and the first outlet (101) connected with the cavity (104), second outlet
(102) and the 3rd outlet (103), the first outlet (101) be used for described second opening (12) sealing connects, described second
Pressure gauge (105) is installed, the 3rd outlet (103) position is provided with ball valve (106), ball valve (106) tool in outlet (102)
There is the 4th outlet (107), the 4th outlet (107) is used to connect with test equipment；
Valve element (2), is movably mounted at the inner chamber (10) inside, described inverse to open inside the non-return valve with heading into
Only valve, the first position for making second opening (12) be connected with the non-return valve, and extract out to close inside the non-return valve
The non-return valve is closed, second opening (12) is cut off the second place connected with the non-return valve；
Long strip through hole (13), is opened on the valve body (1) lateral wall, and connected with the inner chamber (10) by least one；
Pushing part (21), is arranged on the valve element (2) by least one, and stretches out the valve through the long strip through hole (13)
Body (1)；
Actuator (3), thread set can be moved axially along the valve body (1) in rotary manner on the valve body (1) outer wall
It is dynamic, and with the drive division (31) for being used to drive the pushing part (21)；
It is characterized in that：Also include abrasion-proof structure, be arranged between the drive division (31) and the pushing part (21), for inciting somebody to action
Screw extrusion driving of the drive division (31) to the pushing part (21) is converted into axial compression driving；
The abrasion-proof structure includes：
Backing plate (41), is set in the valve element (2) periphery, and positioned between the drive division (31) and the pushing part (21)；
Ball installation cavity (42), with several, is circumferentially positioned on the backing plate (41), and be respectively provided with towards the drive division
(31) the first side opening (421)；
Ball (43), internal and can not deviate from installed in the ball installation cavity (42), the part of the ball (43) is from institute
State that the first side opening (421) is outstanding to be contacted with the drive division (31)；
The excircle of the backing plate (41) be provided with external screw thread, the actuator (3) it is relative with the backing plate (41) excircle
Inwall be provided with the internal thread that is matched with the external screw thread.
2. live testing interface structure according to claim 1, it is characterised in that：The drive division (31), which is provided with, to be used for
The annular groove (32) rolled for the ball (43).
3. live testing interface structure according to claim 1, it is characterised in that：The ball installation cavity (42) also has
Towards second side opening (422) of the pushing part (21), the ball (43) is fit into after the ball installation cavity (42),
Some is outstanding from the second side opening (422) position.
4. the live testing interface structure according to claim 1 or 3, it is characterised in that：Also include packing ring (5), be set in
Valve element (2) periphery, and positioned between the pushing part (21) and the backing plate (41).
5. live testing interface structure according to claim 1, it is characterised in that：The valve element (2) is arranged on described
Between one opening (11) and second opening (12), inside the valve element (2) and/or the valve element (2) outer wall with it is described
The passage (6) for being used for connecting first opening (11) and second opening (12) is provided between the inwall of valve body (1)；It is described
The covering long strip through hole (13) is fully sealed in actuator (3) all the time.
6. live testing interface structure according to claim 1, it is characterised in that：Close to the institute of the described first opening (11)
Valve body (1) outer wall is stated provided with First terrace (71), the bonnet (8) being set on the valve body (1) has and described first
The second step face (81) that step surface (71) mutually stops, the bonnet (8), which is provided with, to be used to be fixedly connected with the non-return valve
Screw thread；
When the bonnet (8) is connected with the non-return valve, the valve body (1) is driven to be moved to the non-return valve direction, and then make
The end (14) of the valve body (1) and the non-return valve crush seal.
7. live testing interface structure according to claim 6, it is characterised in that：Also it is arranged on valve body (1) outer wall
There is clamp nut (9), between the bonnet (8) and the actuator (3), the clamp nut (9) can be along the valve
Body (1) is moved axially, to extrude the bonnet (8), extrudes the First terrace (71) and the second step face (81)
Sealing.
8. live testing interface structure according to claim 7, it is characterised in that：The close institute of the clamp nut (9)
On the outer wall for stating actuator (3), provided with the screw thread that can be spirally connected with the cooperation of the actuator (3) inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610112510.7A CN105570583B (en) | 2016-02-29 | 2016-02-29 | A kind of live testing interface structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610112510.7A CN105570583B (en) | 2016-02-29 | 2016-02-29 | A kind of live testing interface structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105570583A CN105570583A (en) | 2016-05-11 |
| CN105570583B true CN105570583B (en) | 2017-10-17 |
Family
ID=55881040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610112510.7A Expired - Fee Related CN105570583B (en) | 2016-02-29 | 2016-02-29 | A kind of live testing interface structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105570583B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6669168B2 (en) * | 2002-03-13 | 2003-12-30 | Swagelok Company | Quick connect coupling |
| CN101418896A (en) * | 2008-10-30 | 2009-04-29 | 宁波志清实业有限公司 | Pressure measurable union coupling member |
| CN103953810B (en) * | 2014-05-07 | 2015-12-09 | 林顺梅 | A kind of spigot with water switch function |
| DE102014009046A1 (en) * | 2014-06-18 | 2015-12-24 | Voswinkel Entwicklungs- Und Verwaltungs-Gmbh & Co. Kg | Coupling part for a quick coupling for high pressure hydraulic lines |
| CN104251355B (en) * | 2014-08-29 | 2015-12-30 | 国网山东省电力公司青岛供电公司 | A kind of anti-leak gas live testing interface |
-
2016
- 2016-02-29 CN CN201610112510.7A patent/CN105570583B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN105570583A (en) | 2016-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105508774B (en) | A kind of test interface structure | |
| CN112797169B (en) | Back flush type stop valve | |
| CN105570583B (en) | A kind of live testing interface structure | |
| CN205402032U (en) | Test interface | |
| CN204201119U (en) | Scalable control antifreezing faucet | |
| CN208831785U (en) | Floating seal seat eccentric half-ball valve | |
| CN208605772U (en) | A kind of fire-fighting pipe connections of dual-seal | |
| CN208417643U (en) | A kind of auto-drainage device | |
| CN211715883U (en) | Quick opening and closing plug valve | |
| CN210510673U (en) | Be used for storage tank in-service inspection robot electricity liquid gas composite cable rotary joint | |
| CN104373077A (en) | Sampling device for oil well | |
| CN209511340U (en) | A kind of rotatable gas-tpe fitting | |
| CN207569234U (en) | A kind of manual vacuum takes out valve in advance | |
| CN209146446U (en) | A kind of blowdown control valve and water heater | |
| CN101598252A (en) | The elastic pawl that is used for pipeline, valve and valve seat and spool is connected sealing configuration | |
| CN203641522U (en) | Stop valve | |
| CN86203918U (en) | Valve with soft diaphragm | |
| CN205101591U (en) | Lining fluorine plug valve | |
| CN219035621U (en) | High leakproofness valve that prevents frostbite | |
| CN203670860U (en) | All-plastic type open and close valve water faucet | |
| CN213419961U (en) | Sealed effectual control valve for water conservancy water and electricity | |
| CN217081436U (en) | Water conservancy valve that leakproofness is strong | |
| CN212056318U (en) | Outer square plug with good sealing performance | |
| CN215930619U (en) | Heat exchanger tube box | |
| CN2426549Y (en) | Auto-control valve for supercharging pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171017 Termination date: 20190228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |