CN105784285B - A kind of automation valve leak-checking equipment - Google Patents
A kind of automation valve leak-checking equipment Download PDFInfo
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- CN105784285B CN105784285B CN201610334110.0A CN201610334110A CN105784285B CN 105784285 B CN105784285 B CN 105784285B CN 201610334110 A CN201610334110 A CN 201610334110A CN 105784285 B CN105784285 B CN 105784285B
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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
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
- G01M3/08—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool for pipes, cables or tubes; for pipe joints or seals; for valves; for welds
- G01M3/086—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool for pipes, cables or tubes; for pipe joints or seals; for valves; for welds for valves
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- General Physics & Mathematics (AREA)
- Details Of Valves (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention discloses a kind of automation valve leak-checking equipment, it is related to valve seal performance testing field, including pedestal and the water tank being set on the base, two polished rods are equipped in the water tank, two polished rods are vertically arranged and polished rod upper end is stretched out outside water tank, the fixed plate being all connected with two polished rods is equipped with above water tank, the upper sealing mechanism for sealed valve upper end is equipped between the fixed plate and water tank bottom, lower sealing mechanism for sealed valve lower end and the locating support for valve positioning, it is used to drive the cylinder of sealing mechanism in fixed plate there are one setting.The present invention proposes a kind of high, convenient for mounting and clamping, high degree of automation the valve leak-checking equipment of testing efficiency to solve the problems, such as that current valve seal performance test method clamping is inconvenient, efficiency is low, it is not high to take manpower, the degree of automation.
Description
Technical field
The present invention relates to sealing performance testing machine field more particularly to a kind of automation leakage detection apparatus of valve.
Background technology
Valve common opening and closing element when being gas or liquid communication, is generally used for gas ductwork and water conservancy transport two is important
Therefore, before manufacture industry is required for the detection of being sealed property and torsion-testing, not so has larger security risk.
The prior art is not high to test method the degree of automation of valve, and when being sealed performance test, generally use is close
Packing is placed in the outside at valve both ends, valve both ends is clamped in using force application apparatus such as jack or hydraulic cylinders, so that close
Two ends of packing and valve, which are formed, to be sealed, then the valve after entire sealing is manually placed into water, then be passed through toward valve internal
Compressed gas, whether have bubble generation, to judge its sealing performance if observing in water.Tested by means of which, manually into
This is higher, less efficient, and corporate image is bad.
Invention content
Current valve seal performance test method clamping is inconvenient, efficiency is low, expense manpower, automates in order to solve by the present invention
The problem of degree is not high proposes a kind of high, convenient for mounting and clamping, high degree of automation the valve leak-checking equipment of testing efficiency.
To achieve these goals, the present invention uses following technical scheme：A kind of automation valve leak-checking equipment, the bottom of including
Seat and the water tank being set on the base, the water tank is interior to be equipped with two polished rods, and two polished rods are vertically arranged and polished rod upper end is stretched
The fixed plate being all connected with two polished rods is equipped with outside water tank, above water tank, is equipped between the fixed plate and water tank bottom
Upper sealing mechanism for sealed valve upper end, for the lower sealing mechanism of sealed valve lower end and determining for valve positioning
Position stent, sets that there are one for driving the cylinder of sealing mechanism in fixed plate；
The upper sealing mechanism includes upper location-plate, the upper end cover being arranged in upper location-plate, the upper positioning
Plate is slidably matched with two polished rods, and the slidably direction of upper location-plate is vertical, and the upper end cover is equipped with upper test
Stomata；
The lower sealing mechanism includes lower positioning plate, the lower end cover being arranged on lower positioning plate, the lower positioning
Plate is slidably matched with two polished rods, and the slidably direction of lower positioning plate is vertical, and the lower end cover is equipped with lower test
Stomata；
The locating support is fixed on lower positioning plate；
The lower positioning plate returning spring being between lower positioning plate and water tank bottom is arranged on the polished rod；
The water tank bottom is additionally provided with for the limited block of sealing mechanism under retaining.
Preferably, the upper sealing mechanism, which further includes upper end cover briquetting, connecting plate, several top plugs, beats bolt, connecting plate
It is in above upper end cover briquetting and the piston rod of connecting plate and cylinder connects, top plug beats bolt-through upper location-plate and top plug beats spiral shell
Bolt is fixed on connecting plate, and top plug is beaten between bolt and upper location-plate and is slidably connected, and top plug, which is beaten on bolt to be arranged with, is in connection
End cap returning spring between plate and upper location-plate, upper end cover lower end are equipped with the upper piece open slot being inserted into for valve end,
Upper piece open slot is cylindrical, and upper end cover is equipped with the upper test stomata connected with upper piece open slot, in upper piece open slot
Side wall is equipped with cricoid upper groove, and upper groove and upper piece open slot are coaxial, in upper groove equipped with coaxial upper close of upper groove
Seal；Annular groove and several upperpush rod channels are additionally provided on upper end cover, upperpush rod channel lower end is connected with upper annular groove, upper ring
Slot lower end is connected with upper groove, and upper annular groove is between upper groove and upperpush rod channel, is equipped in upper annular groove upper close for pushing
The upper press ring of seal, upper end cover briquetting lower end are equipped with several upperpush rods for being used to push upper press ring, upperpush rod channel and upperpush rod
It corresponds, upperpush rod is arranged vertically and upperpush rod lower end is stretched into corresponding upperpush rod channel；
The lower sealing mechanism further includes bottom end cover briquetting and several lower plugs play bolt, and bottom end cover briquetting is in lower positioning plate
Lower section, lower plug beats positioning plate under bolt-through and lower plug is played bolt and is fixed on bottom end cover briquetting, and lower plug plays bolt and lower positioning
It being slidably connected between plate, lower plug beats on bolt the end cap returning spring for being arranged with and being between lower positioning plate and bottom end cover briquetting,
Lower end cover upper end is equipped with lower piece of open slot being inserted into for valve end, and lower piece of open slot is cylindrical, lower end end cover
The lower test stomata connected with lower piece of open slot is equipped with, lower piece of open slot madial wall is equipped with cricoid lower groove, lower groove
It is coaxial with lower piece of open slot, the lower seal coaxial with lower groove is equipped in lower groove, lower annular groove is additionally provided on lower end cover
With several down-pressed pole channels, down-pressed pole channel upper end is connected with lower annular groove, and lower annular groove upper end is connected with lower groove, and lower annular groove is in
The lower pressure ring for pushing lower seal is equipped between lower groove and down-pressed pole channel, in lower annular groove, bottom end cover briquetting upper end is set
There are several down-pressed poles for being used to push lower pressure ring, down-pressed pole channel is corresponded with down-pressed pole, and down-pressed pole is arranged and pushed vertically
Bar upper end is stretched into corresponding down-pressed pole channel；The limited block is located at the water tank bottom immediately below bottom end cover briquetting.
Preferably, the top plug beats bolt quantity as two, two top plugs beat bolt using cylinder piston rod axis as
It is centrosymmetrically arranged；It is that plug plays bolt centered on cylinder piston rod axis under two, two that the lower plug, which beats bolt quantity,
It is arranged symmetrically.
Preferably, the locating support is cylindrical and is coaxially disposed with lower end cover, locating support endoporus shape
Shape is matched with the clamping of valve body shape, and locating support upper end-face edge offers the valve rod for valve rod positioning among positioning valve
Positioning port.
Preferably, being set in the upper location-plate there are two upper polished rod sliding block, upper polished rod sliding block is corresponded with polished rod,
Upper polished rod slide block set is located on corresponding polished rod and is slidably matched with corresponding polished rod；Two lower polished rods also are provided on the lower positioning plate
Sliding block, lower polished rod sliding block are corresponded with polished rod, and lower polished rod sliding block is set on corresponding polished rod and is slidably matched with corresponding polished rod.
Preferably, the upper sealing ring and lower seal are hollow inflatable sealing ring.
Preferably, the truncation surface of the upper sealing ring and the truncation surface of lower seal are rectangular.
Preferably, the slot bottom of described upper piece open slot be equipped with the fixed upper gasket of upper end cover, lower piece is opened
The slot bottom of mouth slot is equipped with and the lower fixed lower seal pad of end cover.
Preferably, the upper gasket and lower seal pad are silicagel pad.
Therefore, the present invention has the advantages that：1st, automatic clamping, human-saving are efficient；2nd, enter water automatically, act
Consistency is good, and leakage observation is convenient；3rd, simple in structure, processing cost is low, and corporate image is good.
Description of the drawings
Fig. 1 is the structure diagram of the present invention.
Fig. 2 is the structure diagram of another angle of the present invention.
Fig. 3 is the front view of the present invention.
Fig. 4 is the structure diagram of sealing mechanism in the present invention.
Fig. 5 is the sectional view of end cover in the present invention.
Fig. 6 is the sectional view of end cover under the present invention.
Fig. 7 is the structure diagram of test mode of the present invention.
1：Pedestal；2：Water tank；3：Lower sealing mechanism；301：Lower end cover；302：Lower positioning plate；303：Bottom end cover pressure
Block；304：Down-pressed pole；305：Lower piece of open slot；306：Lower groove；307：Lower seal；308：Down-pressed pole channel；309：Lower ring
Slot；310：Lower pressure ring；311：Lower test stomata；312：Lower seal pad；313：Lower plug plays bolt；4：Upper sealing mechanism；401：On
End cover；402：Upper location-plate；403：Upper end cover briquetting；404：Upperpush rod；405：Top plug plays bolt；406：End cap replys bullet
Spring；407：Upper piece open slot；408：Upper groove；409：Upper sealing ring；410：Upperpush rod channel；411：Upper annular groove；412：Upper pressure
Ring；413：Upper test stomata；414：Upper gasket；5：Polished rod；6：Cylinder；7：Fixed plate；8：Connecting plate；9：Lower positioning plate is replied
Spring；10：Locating support；101：Valve rod positioning port；11：Valve；12：Limited block；13：Water level.
Specific embodiment
The present invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
A kind of automation valve leak-checking equipment, referring to Fig. 1, Fig. 2, Fig. 3, including a pedestal 1 and is arranged on pedestal 1
One water tank 2, the water tank 2 is interior to be equipped with two contour polished rods 5, and two polished rods 5 are vertically arranged and water is stretched out in 5 upper end of polished rod
Outside case 2,2 top of water tank is equipped with the fixed plate 7 being all connected with two polished rods 5, and the fixed plate 7 and water tank are set between 2 bottom
It is useful for the upper sealing mechanism 4 of 11 upper end of sealed valve, for the lower sealing mechanism 3 of 11 lower end of sealed valve and for valve
The locating supports 10 of 11 positioning are set in fixed plate 7 there are one for driving the cylinder 6 of sealing mechanism 4, and the cylinder body of cylinder 6 falls
It puts and is fixed in fixed plate 7, the piston rod of cylinder 6 is connected across fixed plate 7 with upper sealing mechanism 4, and upper sealing mechanism 4 passes through gas
The driving of cylinder 6 moves up and down.2 bottom of water tank is additionally provided with the limited block 12 for sealing mechanism under retaining 3.
As shown in figure 4, the upper sealing mechanism 4 includes upper location-plate 402, the upper sealing being arranged in upper location-plate 402
End cap 401, there are two upper polished rod sliding block, two upper polished rod sliding blocks and two polished rods 5 one for 402 both sides of upper location-plate fixation
One corresponds to, and upper polished rod slide block set is located on corresponding polished rod 5 and is slidably matched with corresponding polished rod 5, i.e. upper location-plate 402 and two light
Bar 5 is slidably matched, and the slidably direction of upper location-plate 402 is vertical.The upper sealing mechanism 4 further include upper end cover briquetting 403,
Connecting plate 8 and two top plugs play bolt 405, and connecting plate 8 is in 403 top of upper end cover briquetting and 8 center of connecting plate and gas
The piston rod connection of cylinder 6, upper end cover briquetting 403 between connecting plate 8 and upper location-plate 402, play bolt 405 and pass through by two top plugs
It puts on positioning plate 402 and top plug is played bolt 405 and is fixed on connecting plate 8, and two top plugs play bolt 405 with 6 piston rod of cylinder
It is arranged symmetrically centered on axis, top plug is beaten between bolt 405 and upper location-plate 402 and is slidably connected, and top plug is beaten on bolt 405 and is arranged
There is the end cap returning spring 406 being between connecting plate 8 and upper location-plate 402.It is fixed that the upper end cover 401 is fixed on
Position plate 402 downside center, upper 401 lower end of end cover are equipped with the upper piece open slot 407 being inserted into for 11 upper end of valve, such as
Shown in Fig. 5, upper piece open slot 407 is cylindrical and upper piece 407 opening of open slot is equipped with chamfering, the slot of upper piece open slot 407
Bottom be equipped with the fixed upper gasket 414 of upper end cover 401, the upper gasket 414 be silicagel pad, upper gasket 414 was both
The not compact damage in 11 end face of valve can be protected, and 11 end face of sealed valve can be used for；Upper end cover 401 is equipped with upper test
Stomata 413, upper test stomata 413 is through upper piece 407 bottom surface of open slot and upper 401 upper surface of end cover of connection and upper piece opening
Slot 407 is set；Upper piece 407 madial wall of open slot is equipped with cricoid upper groove 408, and upper groove 408 and upper piece open slot 407 are same
Axis, upper groove 408 is interior to be equipped with the upper sealing ring 409 coaxial with upper groove 408, and the upper sealing ring 409 is in square for truncation surface
The hollow inflatable sealing ring of shape；A upper annular groove 411 and eight upperpush rod channels 410, upper pressure are additionally provided on upper end cover 401
410 lower end of bar channel is connected with upper annular groove 411, and upper 411 lower end of annular groove is connected with upper groove 408, and upper annular groove 411 is in upper groove
The upper press ring 412 for pushing upper sealing ring 409, upper press ring are equipped between 408 and upperpush rod channel 410, in upper annular groove 411
412 outer diameters are less than upper 409 outer diameter of sealing ring, and 412 internal diameter of upper press ring is more than upper 409 internal diameter of sealing ring.403 lower end of upper end cover briquetting
Equipped with eight for pushing the upperpush rod 404 of upper press ring 412, upperpush rod channel 410 is corresponded with upperpush rod 404, upperpush rod
404 vertical arrangements and 404 lower end of upperpush rod is stretched into corresponding upperpush rod channel 410, upperpush rod 404 may pass through upperpush rod channel
410 push upper press ring 412, so as to squeeze upper sealing ring 409.
The lower sealing mechanism 3 includes lower positioning plate 302, the lower end cover 301 being arranged on lower positioning plate 302, institute
It states lower 302 both sides of positioning plate to fix there are two lower polished rod sliding block, two lower polished rod sliding blocks are corresponded with two polished rods 5, lower light
Bar sliding block is set on corresponding polished rod 5 and is slidably matched with corresponding polished rod 5, that is, positioning plate 302 is descended to be slided with two polished rods 5 and is matched
It closes, the slidably direction of lower positioning plate 302 is vertical.The lower sealing mechanism 3 is further included to fill under bottom end cover briquetting 303 and two and be beaten
Bolt 313, bottom end cover briquetting 303 are in lower 302 lower section of positioning plate, and lower plug is played bolt 313 and beaten through lower positioning plate 302 and lower plug
Bolt 313 is fixed on bottom end cover briquetting 303, and plug plays the symmetrical cloth centered on 6 piston rod axis of cylinder of bolt 313 under two
It puts, lower plug, which is beaten between bolt 313 and lower positioning plate 302, to be slidably connected, and lower plug, which is beaten on bolt 313 to be arranged with, is in lower positioning plate
End cap returning spring 406 between 302 and bottom end cover briquetting 303.The lower end cover 301 is fixed on lower positioning plate 302
Upper surface center, lower 301 upper end of end cover is equipped with lower piece of open slot 305 being inserted into for 11 lower end of valve, such as Fig. 6 institutes
Show, also cylindrical and lower piece of 305 opening of open slot is equipped with chamfering to lower piece of open slot 305, and the opening of upper and lower opening slot is opposite
Setting, the slot bottom of lower piece of open slot 305 are equipped with and lower 301 fixed lower seal pad 312 of end cover, the lower seal pad 312
For silicagel pad；Lower end cover 301 is equipped with lower test stomata 311, and lower test stomata 311 runs through lower piece of 305 bottom surface of open slot
And connection 301 lower face of lower end end cover and lower piece of open slot 305 are set, lower piece of 305 madial wall of open slot is equipped with ring-type
Lower groove 306, lower groove 306 and lower piece of open slot 305 are coaxial, be equipped in lower groove 306 with lower groove 306 it is coaxial under it is close
Seal 307, the lower seal 307 are the rectangular hollow inflatable sealing ring of truncation surface, are additionally provided on lower end cover 301
One lower annular groove 309 and eight down-pressed pole channels 308,308 upper end of down-pressed pole channel are connected with lower annular groove 309, on lower annular groove 309
End is connected with lower groove 306, and lower annular groove 309 is between lower groove 306 and down-pressed pole channel 308, is equipped with and is used in lower annular groove 309
In the lower pressure ring 310 for pushing lower seal 307, lower 310 outer diameter of pressure ring is less than 307 outer diameter of lower seal, and lower 310 internal diameter of pressure ring is big
In 307 internal diameter of lower seal.303 upper end of bottom end cover briquetting is equipped with eight for pushing the down-pressed pole 304 of lower pressure ring 310, pushes
Bar channel 308 is corresponded with down-pressed pole 304, and down-pressed pole 304 is arranged vertically and corresponding down-pressed pole is stretched into 304 upper end of down-pressed pole
In channel 308；The limited block 12 is located at 2 bottom of water tank immediately below bottom end cover briquetting 303.Instantly sealing mechanism 3 is pushed away
When pressure moves, bottom end cover briquetting 303 contacts retaining with limited block 12, and down-pressed pole 304 can pass through corresponding down-pressed pole channel 308
Lower pressure ring 310 is pushed, so as to squeeze lower seal 307.
The locating support 10 is fixed on lower positioning plate 302, locating support 10 it is cylindrical and with lower end cover
301 coaxial arrangements, 10 internal via shape of locating support are matched with the clamping of 11 body shape of valve, and 10 upper end-face edge of locating support opens up
It is useful for the valve rod positioning port 101 of 11 intermediate valve rod of positioning valve positioning.
The lower positioning plate being between 2 bottom of lower positioning plate 302 and water tank is arranged on two polished rods 5 to reply
Spring 9.Since positioning plate 302 lower in test process can be pressed down, lower positioning plate returning spring 9 can will test the lower fixed of completion
Position plate 302 is restored to original height, so as to recycle the test for carrying out next valve 11.
Before test, a certain amount of water is first poured into water tank 2,13 requirement of water level can be higher than valve in 11 test process of valve
11 intermediate valve rod height of door, as shown in Figure 7.During test, valve 11 is put in vertically in locating support 10,11 side wall of valve is with determining
Position 10 endoporus of stent clamping positioning, 11 lower end of valve are inserted into lower piece of open slot of lower end cover 301 in lower sealing mechanism 3
In 305, the intermediate valve stem spacing of valve 11 is in valve rod positioning port 101, towards fixed-direction, convenient for people during the test
Observation leakage bubble.Start cylinder 6, entirely upper sealing mechanism 4 moves down the driving of 6 piston rod of cylinder, in folding process, on valve 11
End end is introduced into upper piece open slot 407 of the upper end cover 401 in upper location-plate 402, when valve is held for two about 11
When portion contradicts respectively with the opening trench bottom of upper and lower two end covers, since the opening trench bottom of two end covers is designed with
Primary seal is realized in gasket, 11 end of valve.At this point, upper sealing mechanism 4 drives lower sealing mechanism 3 to move down together, upper sealing
End cap returning spring 406 in mechanism 4 starts to be compressed, and connecting plate 8 is slowly close with upper location-plate 402, on 8 downside of connecting plate
Upperpush rod 404 on end cap briquetting 403 enters the upperpush rod channel 410 of upper end cover 401, in push in end cover 401
Upper press ring 412 squeeze upper sealing ring 409, upper sealing ring 409 is squeezed, and inwardly expands, embraces 11 upper end outer wall of valve, realizes
Secondary seal；Meanwhile the lower positioning plate returning spring 9 of lower 3 downside of sealing mechanism is also compressed, lower positioning plate 302 moves down,
Until bottom end cover briquetting 303 contacts retaining with the limited block 12 of 2 bottom of water tank, the down-pressed pole 304 on bottom end cover briquetting 303 passes through
The lower pressure ring 310 of the push of down-pressed pole channel 308 of lower end cover 301 on lower positioning plate 302 squeezes lower seal 307, under it is close
Seal 307 inwardly expands, and embraces 11 lower end outer wall of valve, realizes secondary seal.At this point, the stopping of valve 11 moves down, 11 liang of valve
End is all sealed by end cover, and the water level 13 in water tank 2 is higher than 11 intermediate stem position of valve, you can is tested.
Test mode can be divided into following two：1st, valve rod is opened, in the test stomata of upper and lower two end covers
Whether with air pressure capable of being increased simultaneously, observing at intermediate valve rod has bubble leakage, can judge whether leaked at valve rod among when valve is opened；
2nd, valve rod is closed, and the lower test stomata of lower end cover is connected with the water in water tank, up the upper test of end cover
With air pressure capable of being increased in stomata, whether have bubble leakage, can judge if observing at the lower test stomata of lower end cover and at intermediate valve rod
When valve is closed, whether leaked between upper and lower two cavitys and at intermediate valve rod.
Claims (7)
1. a kind of automation valve leak-checking equipment, including pedestal（1）And it is arranged on pedestal（1）On water tank（2）, feature exists
In the water tank（2）Inside it is equipped with two polished rods（5）, two polished rods（5）It is vertically arranged and polished rod（5）Water tank is stretched out in upper end（2）
Outside, water tank（2）Top is equipped with and two polished rods（5）The fixed plate being all connected with（7）, the fixed plate（7）With water tank（2）Bottom
Between be equipped with for sealed valve（11）The upper sealing mechanism of upper end（4）, for sealed valve（11）The lower sealing mechanism of lower end
（3）And for valve（11）The locating support of positioning（10）, fixed plate（7）On set that there are one for driving sealing mechanism
（4）Cylinder（6）；
The upper sealing mechanism（4）Including upper location-plate（402）, be arranged on upper location-plate（402）On upper end cover
（401）, the upper location-plate（402）With two polished rods（5）It is slidably matched, upper location-plate（402）Slidably direction erect
Directly, the upper end cover（401）It is equipped with upper test stomata（413）；
The lower sealing mechanism（3）Including lower positioning plate（302）, be arranged on lower positioning plate（302）On lower end cover
（301）, the lower positioning plate（302）With two polished rods（5）It is slidably matched, lower positioning plate（302）Slidably direction erect
Directly, the lower end cover（301）It is equipped with lower test stomata（311）；
The locating support（10）It is fixed on lower positioning plate（302）On；
The polished rod（5）On be arranged with and be in lower positioning plate（302）With water tank（2）Lower positioning plate returning spring between bottom
（9）；
The water tank（2）Bottom is additionally provided with for sealing mechanism under retaining（3）Limited block（12）；
The upper sealing mechanism（4）Further include upper end cover briquetting（403）, connecting plate（8）, several top plugs play bolt（405）, connection
Plate（8）It is in upper end cover briquetting（403）Top and connecting plate（8）With cylinder（6）Piston rod connection, top plug plays bolt（405）
Through upper location-plate（402）And top plug plays bolt（405）It is fixed on connecting plate（8）On, top plug plays bolt（405）With upper location-plate
（402）Between be slidably connected, top plug plays bolt（405）On be arranged with and be in connecting plate（8）With upper location-plate（402）Between end
Lid returning spring（406）, upper end cover（401）Lower end is equipped with for valve（11）Upper piece open slot that end is inserted into（407）, on
Block open slot（407）It is cylindrical, upper end cover（401）It is equipped with and upper piece open slot（407）The upper test stomata of connection
（413）, upper piece open slot（407）Madial wall is equipped with cricoid upper groove（408）, upper groove（408）With upper piece open slot
（407）Coaxially, upper groove（408）It is inside equipped with and upper groove（408）Coaxial upper sealing ring（409）；Upper end cover（401）On
It is additionally provided with annular groove（411）With several upperpush rod channels（410）, upperpush rod channel（410）Lower end and upper annular groove（411）Connection,
Upper annular groove（411）Lower end and upper groove（408）Connection, upper annular groove（411）It is in upper groove（408）With upperpush rod channel（410）
Between, upper annular groove（411）It is interior to be equipped with to push upper sealing ring（409）Upper press ring（412）, upper end cover briquetting（403）Lower end
It is used to push upper press ring equipped with several（412）Upperpush rod（404）, upperpush rod channel（410）With upperpush rod（404）One is a pair of
Should, upperpush rod（404）Vertical arrangement and upperpush rod（404）Corresponding upperpush rod channel is stretched into lower end（410）In；
The lower sealing mechanism（3）Further include bottom end cover briquetting（303）Bolt is played with several lower plugs（313）, bottom end cover briquetting
（303）It is in lower positioning plate（302）Lower section, lower plug play bolt（313）Through lower positioning plate（302）And lower plug plays bolt（313）
It is fixed on bottom end cover briquetting（303）On, lower plug plays bolt（313）With lower positioning plate（302）Between be slidably connected, lower plug plays bolt
（313）On be arranged with and be in lower positioning plate（302）With bottom end cover briquetting（303）Between end cap returning spring（406）, lower sealing
End cap（301）Upper end is equipped with for valve（11）The lower piece of open slot that end is inserted into（305）, lower piece of open slot（305）It is cylindrical,
Lower end end cover is equipped with and lower piece of open slot（305）The lower test stomata of connection（311）, lower piece of open slot（305）Inside
Wall is equipped with cricoid lower groove（306）, lower groove（306）With lower piece of open slot（305）Coaxially, lower groove（306）Inside it is equipped with
With lower groove（306）Coaxial lower seal（307）, lower end cover（301）On be additionally provided with lower annular groove（309）With several pushings
Bar channel（308）, down-pressed pole channel（308）Upper end and lower annular groove（309）Connection, lower annular groove（309）Upper end and lower groove（306）
Connection, lower annular groove（309）It is in lower groove（306）With down-pressed pole channel（308）Between, lower annular groove（309）It is interior to be equipped with to push away
Depress sealing ring（307）Lower pressure ring（310）, bottom end cover briquetting（303）Upper end is used to push lower pressure ring equipped with several（310）'s
Down-pressed pole（304）, down-pressed pole channel（308）With down-pressed pole（304）It corresponds, down-pressed pole（304）Vertical arrangement and down-pressed pole
（304）Corresponding down-pressed pole channel is stretched into upper end（308）In；The limited block（12）Positioned at bottom end cover briquetting（303）Under just
The water tank of side（2）Bottom；
The upper sealing ring（409）And lower seal（307）It is hollow inflatable sealing ring.
2. a kind of automation valve leak-checking equipment according to claim 1, it is characterised in that：The top plug plays bolt
（405）Quantity is two, and two top plugs play bolt（405）With cylinder（6）It is arranged symmetrically centered on piston rod axis；Under described
Plug plays bolt（313）Quantity is that plug plays bolt under two, two（313）With cylinder（6）It is arranged symmetrically centered on piston rod axis.
3. a kind of automation valve leak-checking equipment according to claim 1, it is characterised in that：The locating support（10）
It is cylindrical and with lower end cover（301）Coaxial arrangement, locating support（10）Internal via shape and valve（11）Body shape card
Connect matching, locating support（10）Upper end-face edge is offered for positioning valve（11）The valve rod positioning port of intermediate valve rod positioning
（101）.
4. a kind of automation valve leak-checking equipment according to claim 1, it is characterised in that：The upper location-plate
（402）On set there are two upper polished rod sliding block, upper polished rod sliding block and polished rod（5）It corresponds, upper polished rod slide block set is located at corresponding light
Bar（5）It is upper and with corresponding polished rod（5）It is slidably matched；The lower positioning plate（302）On also be provided with two lower polished rod sliding blocks, lower polished rod
Sliding block and polished rod（5）It corresponds, lower polished rod sliding block is set in corresponding polished rod（5）It is upper and with corresponding polished rod（5）It is slidably matched.
5. a kind of automation valve leak-checking equipment according to claim 1, it is characterised in that：The upper sealing ring
（409）Truncation surface and lower seal（307）Truncation surface it is rectangular.
6. a kind of automation valve leak-checking equipment according to Claims 2 or 3 or 4, it is characterised in that：It is described upper piece open
Mouth slot（407）Slot bottom be equipped with and upper end cover（401）Fixed upper gasket（414）, lower piece of open slot（305）Slot bottom
Equipped with lower end cover（301）Fixed lower seal pad（312）.
7. a kind of automation valve leak-checking equipment according to claim 6, it is characterised in that：The upper gasket
（414）And lower seal pad（312）For silicagel pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610334110.0A CN105784285B (en) | 2016-05-18 | 2016-05-18 | A kind of automation valve leak-checking equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN107091343B (en) * | 2017-06-26 | 2019-01-25 | 永高股份有限公司 | A kind of fuel gas ball valve air leak tester |
| CN107727331B (en) * | 2017-11-08 | 2023-11-24 | 宁波宇华实业股份有限公司 | Ball valve rod airtight performance test equipment |
| CN110823462B (en) * | 2019-11-29 | 2021-08-10 | 温州海川检验有限公司 | A tool frock for accurate three-way valve gas tightness detects |
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Inventor after: Shi Changshuai Inventor after: Sun Delin Inventor after: Ma Zhengping Inventor after: Kong Xiangwei Inventor after: Gu Shijun Inventor before: Xuan Yueluo |
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Effective date of registration: 20180508 Address after: 224000 Shang Zhuang salt Electric Industrial Park, Yan Du District, Yancheng City, Jiangsu Applicant after: Jiangsu Yandain Valve Co., Ltd. Address before: 311835 Wangjia village, Shang Fan Village, Dian Kou Town, Zhuji City, Shaoxing, Zhejiang 99 Applicant before: Xuan Yueluo |
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