CN105508774A - Test interface structure - Google Patents
Test interface structure Download PDFInfo
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- CN105508774A CN105508774A CN201610112319.2A CN201610112319A CN105508774A CN 105508774 A CN105508774 A CN 105508774A CN 201610112319 A CN201610112319 A CN 201610112319A CN 105508774 A CN105508774 A CN 105508774A
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- check valve
- opening
- valve body
- test interface
- interface structure
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
- Check Valves (AREA)
Abstract
The invention provides a test interface structure which comprises a valve, a valve element, at least one elongated through hole, at least one pushing portion, a driving member and a wear-resistant structure. The valve has an inner cavity which is provided with a first opening communicated with a check valve, and a second opening communicated with test equipment, the valve element is movably mounted inside the inner cavity and can be at a first position abutting inside the check valve to enable the second opening to be communicated with the check valve and a second position extracting from the inside of the check valve to enable communication between the second opening and the check valve to be cut off, the elongated through holes are formed in the outer side wall of the valve and communicated with the inner cavity, the pushing portions are arranged on the valve element and extend out of the same through the elongated through holes, the driving member sleeves the outer wall of the valve in a threaded manner and can move axially along the valve rotatably and is provided with a driving portion used for driving the pushing portions, and the wear-resistant structure is arranged between the driving portion and the pushing portions and used for converting spiral extrusion driving of the driving portion to the pushing portions into axial extrusion driving. The test interface structure is compact in structure and high in sealability.
Description
Technical field
The present invention relates to gas test interfacing field, be specifically related to a kind of test interface structure.
Background technique
Current most of charger is (as SF
6charger) interface all adopt spring check valve structure.Spring check valve effectively can prevent the leakage of gas indoor gas.In order to test the gas micro water content of charger and gas composition, generally on spring check valve in prior art by test interface screw thread rotation, in rotary course, its inner thimble progressively backs down spring check valve spool, put in place once outside thread advances, spool will all be opened, now just can by the test pipeline, reduction valve, testing instrument etc. of connection to micro-water content, the analytical gas analyte of measuring gas indoor gas.After having tested, oppositely progressively rotated by test interface and resign from office, under normal circumstances, spring check valve inner spool is progressively closed until closedown puts in place completely, terminates test.If but occur that the minute impurities contained in gas is just in time charged to valve port, or gas forms turbulent flow around valve port, just spring check valve core likely can be caused to close not in place, cause gas indoor gas to leak in a large number.But test interface of the prior art generally cannot detect whether spring check valve closes completely, thus also just cannot know whether there is SF6 Leakage Gas in advance, and SF6 gas leaks in a large number and often causes serious consequence, and bring severe compromise, test again after thus generally all needing power failure in prior art.
Chinese patent literature CN104251355A discloses a kind of anti-leak gas live testing interface, as shown in Figure 1, comprise valve body 01, valve body 01 has hollow cavity 010, hollow cavity 010 has the first opening 011 being suitable for being sealedly and fixedly connected with check valve, with the second opening 012 being suitable for being tightly connected with testing tool, hollow cavity 010 inside is provided with switch member 02 movably, switch member 02 is provided with thimble 021 towards the side of the first opening, valve body 01 outer side wall also offers rectangular through hole 013, switch member 02 is provided with the pushing part 022 of stretching out valve body 01 from rectangular through hole 013, valve body 01 outer wall is provided with outside thread, annular driving member 03 is set on valve body 01 outer wall, and rectangular through hole 013 is covered completely, annular driving member 03 has the first promotion face 031 relative with pushing part 022, when annular driving member 03 rotates and is mobile to check valve direction (diagram left) on valve body 01 outer wall, pushing part 022 is promoted by the first promotion face 031, and then pushing switch part 02 moves to check valve direction, thimble 021 is made to back down check valve, when rotary annular driving member 03, rotate in order to avoid driving switch member 02, between the first promotion face 031 and pushing part 022, be also provided with annular slab 05, on annular slab 05 and the first promotion face 031, coupling is provided with annular rolling groove 051, is provided with some balls 052 in annular rolling groove 051, when annular driving member 03 rotates on valve body 01, promote annular slab 05 move to check valve direction, due to annular slab 05 do not rotate or rotating amount very little, when annular slab 05 promotes pushing part 022, pushing part 022 can not be promoted and rotate, in addition, in order to avoid ball 052 is deviate from annular rolling groove 051, be also provided with the first spring 041, for pushing against pushing part to the first direction, promotion face 031, and then make annular slab 05 all the time with the first promotion face 031 close contact, and, at annular driving member 03 to when moving away from check valve side, in order to ensure that switch member 02 outwards can be deviate from check valve, be also provided with all the time to the second spring 042 away from check valve direction Drawing switch part 02.
Above-mentioned patent is the innovation and creation of inventor oneself, but in concrete practice, inventor finds, include three springs in the structure of this kind of test interface, structure is comparatively loaded down with trivial details, and assembling difficulty is large, efficiency is low; And, when the first opening 011 of this interface is tightly connected with check valve by bonnet 06, mainly rely on the end face of the first opening 011 and the end face crush seal of check valve, but when any one in two end faces is smooth not or both mate not, easily there is poorly sealed problem; In addition, interface is being installed in the process on check valve, valve body 01 is motionless, need to rotate bonnet 06, and this rotary squeezing, cause the poor sealing performance between bonnet 06 and the outward flange of the first opening 011, once poorly sealed between above-mentioned two end faces, between bonnet 06 and outward flange, gas leak phenomenon will occur.
Summary of the invention
Therefore, it is loaded down with trivial details that the technical problem to be solved in the present invention is to overcome test interface structure of the prior art, and the technological deficiency of poor sealing performance, thus provide a kind of simple for structure, and the test interface structure of good seal performance.
For this reason, the invention provides a kind of test interface structure, comprising:
Valve body, has inner chamber, and described inner chamber has the first opening for being communicated with check valve, with the second opening for being communicated with testing apparatus;
Spool, be arranged on described inner cavity movably, have and head into described check valve inside to open described check valve, make the primary importance that described second opening is communicated with described check valve, extract out to close described check valve with from described check valve inside, make described second opening cut off with described check valve the second place be communicated with;
Rectangular through hole, is at least one, is opened on described valve body outer side wall, and with described inner space;
Pushing part, is at least one, is arranged on described spool, and stretches out described valve body through described rectangular through hole;
Actuator, thread set, on described valve outer wall, can move axially along described valve body in rotary manner, and has the drive portion for driving described pushing part;
Also comprising anti-abration structure, be arranged between described drive portion and described pushing part, converting axial compression driving to for being driven the screw extrusion of described pushing part by described drive portion.
As a kind of preferred version, described anti-abration structure comprises:
Backing plate, is set in described spool peripheral, and between described drive portion and described pushing part;
Ball installation cavity, has several, around being arranged on described backing plate, and all has towards the first side opening of described drive portion;
Ball, be arranged on described ball installation cavity inside and can not deviate from, a part for described ball outwardly contacts with described drive portion from described first side opening.
As a kind of preferred version, described drive portion is provided with the annular groove for rolling for described ball.
As a kind of preferred version, the excircle of described backing plate is provided with outside thread, and the inwall relative with described backing plate excircle of described actuator is provided with the internal thread mated with described outside thread.
As a kind of preferred version, described ball installation cavity also has the second side opening towards described pushing part, and after described ball is fit into described ball installation cavity, some from described second side opening position outwardly.
As a kind of preferred version, also comprise packing ring, be set in described spool peripheral, and between described pushing part and described backing plate.
As a kind of preferred version, described spool is arranged between described first opening and described second opening, is provided with the passage for being communicated with described first opening and described second opening between the outer wall of described valve core inside and/or described spool and the inwall of described valve body; Described actuator seals completely all the time and covers described rectangular through hole.
As a kind of preferred version, described valve outer wall near described first opening is provided with First terrace, the bonnet be set on described valve body has the second step face mutually stopped with described First terrace, and described bonnet is provided with the screw thread for being fixedly connected with described check valve;
When described bonnet is connected with described check valve, drive described valve body to move to described check valve direction, and then make the end of described valve body and described check valve crush seal.
As a kind of preferred version, described valve outer wall is also arranged with tightening nut, and between described bonnet and described actuator, described tightening nut can move axially along described valve body, to extrude described bonnet, make described First terrace and described second step face crush seal.
As a kind of preferred version, on the outer wall of the close described actuator of described tightening nut, be provided with and can coordinate with described actuator inwall the screw thread be spirally connected.
Test interface structure provided by the invention, has the following advantages:
1. test interface structure of the present invention, anti-abration structure is provided with between actuator and pushing part, when actuator rotates on valve outer wall, and promote pushing part by drive portion and then promote spool to when moving near the direction of check valve, the rotating drive of drive portion to pushing part can be converted to axial driving by this anti-abration structure, thus the frictional force between drive portion and pushing part is reduced greatly, decrease wearing and tearing, improve the working life of equipment; When spool is extracted out from check valve inside by needs, actuator is moved in the direction simply need to away from check valve, and spool, under the gas pressure effect of discharging from check valve inside, will switch to the second place by primary importance automatically; Anti-abration structure of the present invention, compared with test interface of the prior art, between the side of the close check valve side of pushing part and rectangular through-hole wall, spring is not set, and not all the time to the second spring away from check valve side tractive spool, thus simple for structure, assembling difficulty is low, and manufacturing efficiency is high.
2. test interface structure of the present invention, anti-abration structure comprises backing plate, and backing plate is provided with some ball installation cavitys, is provided with ball in ball installation cavity, and a part for ball is given prominence to by the first side opening towards drive portion side being located at ball installation cavity, contacts with drive portion; Work as rotary drive, when making it move to the side near the first opening, the drive portion of actuator and ball contact, the rotation of drive portion only can drive ball to roll, and backing plate can not be driven to rotate, at actuator gradually in the process that pushing part is close, ball promotes pushing part vertically by backing plate and moves to the direction near check valve, and then makes spool back down check valve.
3. test interface structure of the present invention, the excircle of backing plate is also provided with outside thread, and the inwall relative with backing plate excircle of actuator is provided with the internal thread mated with outside thread; Backing plate is arranged on actuator inside in the mode of screw-thread fit, not only can ensures the relative position between ball and drive portion, making between ball and drive portion can better routing motion, and when the driver is turned, backing plate can not be driven to rotate together.
4. test interface structure of the present invention, ball installation cavity is provided with the second side opening towards pushing part, after ball is fit into, some from the second side opening outwardly, this outstanding part contacts with pushing part, work as rotary drive, when making it move to the side near the first opening, the drive portion of actuator and the part contact stretching out the first side opening of ball, the part contact stretching out the second side opening of pushing part and ball, thus the rotation extruding of drive portion to pushing part is driven the roll drive converting ball to, and force direction is the axis towards the first opening direction, the same like this pivoting friction can avoided between drive portion and pushing part, can reduce wear, improve service life of equipment.Further, packing ring can be set up between pushing part and backing plate, protect pushing part further, reduce the rolling friction between pushing part and ball.
5. test interface structure of the present invention, valve core inside is provided with the passage for being communicated with the first opening and the second opening, the setting of this passage can also play the effect reducing spool weight, and when needs spool is extracted out from check valve inside, the spool that weight is little is more easily blown out by gas pressure.
6. test interface structure of the present invention, valve outer wall is also arranged with tightening nut, and this tightening nut can move axially along valve body, with to the first opening direction extruding bonnet, makes the sealing between First terrace and second step face more tight, effective; When rotating bonnet and making end and check valve crush seal, if can not mate completely, then can there is gas leak phenomenon between the two, if now the sealing at First terrace and second step face place can not meet the demands, then cannot test; Bonnet of the prior art is by rotating mode jam-packed First terrace forward and second step face, but the sealing that this revolving jam-packed mode realizes, seal degree is poor, often can not meet the demands, the present invention is by setting up tightening nut, when realizing high-seal between needs First terrace and second step face, rotatable tightening nut extruding bonnet, exert a force to bonnet and valve body vertically simultaneously, very high tightness degree can be reached, and then make the sealing between First terrace and second step face meet seal request.
7. test interface structure of the present invention, tightening nut is provided with the screw thread that can coordinate with the inner thread of actuator towards the side outer wall of actuator, and such setting can reduce the volume of test interface, makes equipment compacter.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme in prior art or the specific embodiment of the invention, the accompanying drawing used in describing prior art or embodiment is below briefly described, apparently, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structure principle chart of live testing interface in prior art.
Fig. 2 is the structure principle chart of test interface structure in the embodiment of the present invention 1.
Fig. 3 is the A-A direction view of Fig. 2.
Fig. 4 is the schematic enlarged-scale view of part A in Fig. 2.
Reference character: 01-valve body, 010-hollow cavity, 011-first opening, 012-second opening, the rectangular through hole of 013-, 02-switch member, 021-thimble, 022-pushing part, 03-annular driving member, 031-first promotes face, 041-first spring, 042-second spring, 05-annular slab, 051-annular rolling groove, 052-ball, 06-bonnet;
1-valve body, 10-inner chamber, 11-first opening, 12-second opening, the rectangular through hole of 13-, 14-end, 2-spool, 21-pushing part, 22-thimble, 3-actuator, 31-drive portion, 32-annular groove, 41-backing plate, 42-ball installation cavity, 421-first side opening, 422-second side opening, 43-ball, 5-packing ring, 6-passage, 71-First terrace, 8-bonnet, 81-second step face, 9-tightening nut.
Embodiment
Be described technological scheme of the present invention below in conjunction with Figure of description, obviously, following embodiment is not the whole embodiment of the present invention.Based on embodiment described in the invention, those of ordinary skill in the art, not making the every other embodiment obtained under other creative work prerequisites, belong to protection scope of the present invention.
It should be noted that, in describing the invention, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance.In addition, if below in the described different mode of execution of the present invention involved technical characteristics do not form conflict each other and just can be combined with each other.
Embodiment
The present embodiment provides a kind of test interface structure, as Figure 2-3, comprising: valve body 1, has inner chamber 10, and described inner chamber 10 has the first opening 11 for being communicated with check valve, with the second opening 12 for being communicated with testing apparatus; Spool 2, be arranged on described inner chamber 10 movably inner, there is thimble 22, and have that to head into described check valve inner to open described check valve, make the primary importance that described second opening 12 is communicated with described check valve, extract out to close described check valve with from described check valve inside, make described second opening 12 cut off with described check valve the second place be communicated with; Rectangular through hole 13, is at least one, is opened on described valve body 1 outer side wall, and is communicated with described inner chamber 10; Pushing part 21, is at least one, is arranged on described spool 2, and stretches out described valve body 1 through described rectangular through hole 13; Actuator 3, thread set, on described valve body 1 outer wall, can move axially along described valve body 1 in rotary manner, and has the drive portion 31 for driving described pushing part 21; Also comprising anti-abration structure, be arranged between described drive portion 31 and described pushing part 21, converting axial compression driving to for being driven the screw extrusion of described pushing part 21 by described drive portion 31.
The test interface structure of the present embodiment, anti-abration structure is provided with between actuator 3 and pushing part 21, when actuator 3 rotates on valve body 1 outer wall, and promote pushing part 21 by drive portion 31 and then promote spool 2 to when moving near the direction of check valve, the rotating drive of drive portion 31 pairs of pushing parts 21 can be converted to axial driving by this anti-abration structure, thus the frictional force between drive portion 31 and pushing part 21 is reduced greatly, decrease wearing and tearing, improve the working life of equipment; When spool 2 is extracted out from check valve inside by needs, actuator 3 is moved in the direction simply need to away from check valve, and spool 2, under the gas pressure effect of discharging from check valve inside, will switch to the second place by primary importance automatically; Compared with test interface of the prior art, the anti-abration structure of the present embodiment, between the side of the close check valve side of pushing part 21 and rectangular through hole 13 inwall, spring is not set, and not all the time to the second spring away from check valve side tractive spool 2, thus simple for structure, assembling difficulty is low, and manufacturing efficiency is high.
Shown in figure 4, described anti-abration structure comprises: backing plate 41, is set in described spool 2 peripheral, and between described drive portion 31 and described pushing part 21; Ball installation cavity 42, has several, around being arranged on described backing plate 41, and all has towards the first side opening 421 of described drive portion 31; Ball 43, be arranged on described ball installation cavity 42 inside and can not deviate from, a part for described ball 43 outwardly contacts with described drive portion 31 from described first side opening 421.When rotary drive 3, when making it move to the side near the first opening 11, the drive portion 31 of actuator 3 contacts with ball 43, the rotation of drive portion 31 only can drive ball 43 to roll, and backing plate 41 can not be driven to rotate, in the process that actuator 3 is close to pushing part 21 gradually, ball 43 promotes pushing part 21 vertically by backing plate 41 and moves to the direction near check valve, and then makes spool 2 back down check valve.
Described drive portion 31 is provided with the annular groove 32 for rolling for described ball 43.
The excircle of described backing plate 41 is provided with outside thread, and the inwall relative with described backing plate 41 excircle of described actuator 3 is provided with the internal thread mated with described outside thread.Backing plate 41 is arranged on actuator 3 in the mode of screw-thread fit inner, not only can ensure the relative position between ball 43 and drive portion 31, making between ball 43 and drive portion 31 can better routing motion, and when actuator 3 rotates, backing plate 41 can not be driven to rotate together.
As a kind of deformation program, as shown in Figure 4, described ball installation cavity 42 also has the second side opening 422 towards described pushing part 21, and after described ball 43 is fit into described ball installation cavity 42, some from described second side opening 422 position outwardly.When rotary drive 3, when making it move to the side near the first opening 11, the drive portion 31 of actuator 3 and the part contact stretching out the first side opening 421 of ball 43, the part contact stretching out the second side opening 422 of pushing part 31 and ball 43, thus the rotation of drive portion 31 pairs of pushing parts 21 extruding is driven the roll drive converting ball 43 to, and force direction is the axis towards the first opening 11 direction, the same like this pivoting friction can avoided between drive portion 31 and pushing part 21, can reduce wear, improve service life of equipment.Further, can set up packing ring 5 between pushing part 21 and backing plate 41, protection pushing part 21, reduces the rolling friction between pushing part 21 and ball 43 further.
Described spool 2 is arranged between described first opening 11 and described second opening 12, and described spool 2 inside is provided with the passage 6 for being communicated with described first opening 11 and described second opening 12; Described actuator 3 seals completely all the time and covers described rectangular through hole 13.The setting of passage 6 can also play the effect reducing spool 2 weight, and when needs spool 2 is extracted out from check valve inside, the spool 2 that weight is little is more easily blown out by gas pressure.In the present embodiment, the setting of passage 6 unlike the prior art, passage 6 in the present embodiment is the whole cavity arranged in spool 2 inside, spool end towards check valve side offers several for being communicated with the small through hole of cavity and check valve, compared with prior art, greatly can reduce the weight of spool 2, spool 2 is more easily blown.As the deformation program that passage 6 designs, passage 6 can also be designed between the outer wall and the inwall of described valve body 1 of described spool 2.
Described valve body 1 outer wall near described first opening 11 is provided with First terrace 71, the bonnet 8 be set on described valve body 1 has the second step face 81 mutually stopped with described First terrace 71, and described bonnet 8 is provided with the screw thread for being fixedly connected with described check valve; When described bonnet 8 is connected with described check valve, drive described valve body 1 to move to described check valve direction, and then make the end 14 of described valve body 1 and described check valve crush seal.
Described valve body 1 outer wall is also arranged with tightening nut 9, between described bonnet 8 and described actuator 3, described tightening nut 9 can move axially along described valve body 1, to extrude described bonnet 8, makes described First terrace 71 and described second step face 81 crush seal.
When rotating bonnet 8 and making end 14 and check valve crush seal, if can not mate completely, then can there is gas leak phenomenon between the two, if now the sealing at First terrace 71 and second step face 81 place can not meet the demands, then cannot test; The present invention is by setting up tightening nut 9, when realizing high-seal between needs First terrace 71 and second step face 81, rotatable tightening nut 9 extrudes bonnet 8, exert a force to bonnet 8 and valve body 1 vertically simultaneously, thus make the sealing between First terrace 71 and second step face 81 meet seal request.
On the outer wall of the close described actuator 3 of described tightening nut 9, be provided with and can coordinate with described actuator 3 inwall the screw thread be spirally connected, such setting can reduce the volume of test interface, makes equipment compacter.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to mode of execution.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all mode of executions.And thus the apparent change of extending out or variation be still among the protection domain of the invention.
Claims (10)
1. a test interface structure, comprising:
Valve body (1), has inner chamber (10), and described inner chamber (10) has the first opening (11) for being communicated with check valve, with the second opening (12) for being communicated with testing apparatus;
Spool (2), be arranged on described inner chamber (10) movably inner, have and head into described check valve inside to open described check valve, make the primary importance that described second opening (12) is communicated with described check valve, extract out to close described check valve with from described check valve inside, make described second opening (12) cut off with described check valve the second place be communicated with;
Rectangular through hole (13), is at least one, is opened on described valve body (1) outer side wall, and is communicated with described inner chamber (10);
Pushing part (21), is at least one, is arranged on described spool (2), and stretches out described valve body (1) through described rectangular through hole (13);
Actuator (3), thread set is on described valve body (1) outer wall, can move axially along described valve body (1) in rotary manner, and there is the drive portion (31) for driving described pushing part (21);
It is characterized in that: also comprise anti-abration structure, being arranged between described drive portion (31) and described pushing part (21), converting axial compression driving to for being driven the screw extrusion of described pushing part (21) by described drive portion (31).
2. test interface structure according to claim 1, is characterized in that: described anti-abration structure comprises:
Backing plate (41), is set in described spool (2) peripheral, and is positioned between described drive portion (31) and described pushing part (21);
Ball installation cavity (42), has several, around being arranged on described backing plate (41), and all has towards first side opening (421) of described drive portion (31);
Ball (43), be arranged on described ball installation cavity (42) inside and can not deviate from, a part for described ball (43) outwardly contacts with described drive portion (31) from described first side opening (421).
3. test interface structure according to claim 2, is characterized in that: described drive portion (31) is provided with the annular groove (32) for rolling for described ball (43).
4. test interface structure according to claim 2, it is characterized in that: the excircle of described backing plate (41) is provided with outside thread, the inwall relative with described backing plate (41) excircle of described actuator (3) is provided with the internal thread mated with described outside thread.
5. test interface structure according to claim 2, it is characterized in that: described ball installation cavity (42) also has the second side opening (422) towards described pushing part (21), after described ball (43) is fit into described ball installation cavity (42), some from described second side opening (422) position outwardly.
6. the test interface structure according to claim 2 or 5, it is characterized in that: also comprise packing ring (5), be set in described spool (2) peripheral, and be positioned between described pushing part (21) and described backing plate (41).
7. test interface structure according to claim 1, it is characterized in that: described spool (2) is arranged between described first opening (11) and described second opening (12), between the outer wall of described spool (2) inside and/or described spool (2) and the inwall of described valve body (1), being provided with the passage (6) for being communicated with described first opening (11) and described second opening (12); Described actuator (3) seals completely all the time and covers described rectangular through hole (13).
8. test interface structure according to claim 1, it is characterized in that: described valve body (1) outer wall near described first opening (11) is provided with First terrace (71), the bonnet (8) be set on described valve body (1) has the second step face (81) mutually stopped with described First terrace (71), and described bonnet (8) is provided with the screw thread for being fixedly connected with described check valve;
When described bonnet (8) is connected with described check valve, drive described valve body (1) to move to described check valve direction, and then make the end of described valve body (1) (14) and described check valve crush seal.
9. test interface structure according to claim 8, it is characterized in that: described valve body (1) outer wall is also arranged with tightening nut (9), be positioned between described bonnet (8) and described actuator (3), described tightening nut (9) can move axially along described valve body (1), to extrude described bonnet (8), make described First terrace (71) and described second step face (81) crush seal.
10. test interface structure according to claim 9, it is characterized in that: on the outer wall of the close described actuator (3) of described tightening nut (9), be provided with and can coordinate with described actuator (3) inwall the screw thread be spirally connected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610112319.2A CN105508774B (en) | 2016-02-29 | 2016-02-29 | A kind of test interface structure |
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| CN201610112319.2A CN105508774B (en) | 2016-02-29 | 2016-02-29 | A kind of test interface structure |
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| CN105508774B CN105508774B (en) | 2017-10-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106195476A (en) * | 2016-07-08 | 2016-12-07 | 北京动力机械研究所 | A kind of nested sealer with assembled for minor diameter straight section pipeline |
| CN106483621A (en) * | 2016-12-19 | 2017-03-08 | 中山联合光电科技股份有限公司 | A kind of structure improving the camera lens life-span |
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| CN1639499A (en) * | 2002-03-13 | 2005-07-13 | 斯瓦戈洛克公司 | Quick connect coupling with valve means |
| CN101418896A (en) * | 2008-10-30 | 2009-04-29 | 宁波志清实业有限公司 | Pressure measurable union coupling member |
| CN103953810A (en) * | 2014-05-07 | 2014-07-30 | 林顺梅 | Inner joint with water switch function |
| EP2957810A1 (en) * | 2014-06-18 | 2015-12-23 | Voswinkel Entwicklungs- und Verwaltungs-GmbH & Co. KG | Coupling part for a quick connector for high pressure hydraulic pipes |
| CN104251355A (en) * | 2014-08-29 | 2014-12-31 | 国网山东省电力公司青岛供电公司 | Gas leakproof live-testing connector |
| CN205402032U (en) * | 2016-02-29 | 2016-07-27 | 国网山东省电力公司青岛供电公司 | Test interface |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195476A (en) * | 2016-07-08 | 2016-12-07 | 北京动力机械研究所 | A kind of nested sealer with assembled for minor diameter straight section pipeline |
| CN106195476B (en) * | 2016-07-08 | 2018-11-20 | 北京动力机械研究所 | A kind of nested sealer with assembled for minor diameter straight section pipeline |
| CN106483621A (en) * | 2016-12-19 | 2017-03-08 | 中山联合光电科技股份有限公司 | A kind of structure improving the camera lens life-span |
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| CN105508774B (en) | 2017-10-03 |
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