CN201471370U - Flat-plate gate valve tensioning device - Google Patents
Flat-plate gate valve tensioning device Download PDFInfo
- Publication number
- CN201471370U CN201471370U CN200920164459XU CN200920164459U CN201471370U CN 201471370 U CN201471370 U CN 201471370U CN 200920164459X U CN200920164459X U CN 200920164459XU CN 200920164459 U CN200920164459 U CN 200920164459U CN 201471370 U CN201471370 U CN 201471370U
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- rotating shaft
- claw
- connecting rod
- upper connecting
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Abstract
The utility model relates to a tensioning device for assembling a floating valve seat type flat-plate gate valve, which is a flat-plate gate valve tensioning device. The tensioning device comprises a large-diameter claw, a small-diameter claw, a rotating shaft, a lower pull rod, an upper pull rod, a support plate, a pulling plate and a forcing rod; the upper part of the large-diameter claw is articulated with the lower part of the small-diameter claw by the rotating shaft; and the lower end of the large-diameter claw can be clamped into a lower lug boss in a ring-shaped groove on the inner wall of a valve seat hole. The tensioning device has reasonable and compact structure, and convenient use. By tightly clamping the ring-shaped groove on the inner wall of the valve seat hole with the lower lug boss and an upper lug boss, by screwing the forcing rod to pull the pulling plate to be far from a valve body, and by driving the lower lug boss and the upper lug boss to pull the valve seat to move towards the outer end of the valve body with the upper pull rod and the lower pull rod, the left valve seat and the right vale seat generate an enough space to fill a gate plate; and therefore, the tensioning device has the characteristics of safety, labor saving, simplicity, convenience, high efficiency and stable and reliable performance, and is particularly suitable for manufacturing and maintaining the flat-plate gate valve.
Description
One, technical field
The utility model relates to the assembling of floating valve seat formula flat gate valve and uses chest expander, is a kind of flat gate valve chest expander.
Two, background technology
Floating current valve seat formula flat gate valve is oil field a kind of valve commonly used, and the sealing property of this valve is better, has obtained using comparatively widely.As shown in Figure 2, floating valve seat formula flat gate valve comprises valve body 1, about two valve seats 2, about two valve body holes 3, about two valve seat installing holes 4, about two wavy springs 5, there is valve pocket the inside of valve body 1, valve body 1 left end is an entrance point, valve body 1 right-hand member is the port of export, the two ends, the left and right sides of valve body 1 have respectively make that the entrance point and the port of export be connected with valve pocket about two valve body holes 3, about have respectively on two valve body holes 3 and the position that valve pocket is connected about two valve seat installing holes 4, about two valve seats 2 respectively by about two valve seat installing holes 4 be installed in the valve body 1 and can move axially, about have respectively between the bottom surface of two valve seats 2 and place valve seat installing hole 4 about two wavy springs 5, about the left and right sides valve seat orifice 6 coaxial with left and right sides valve body hole 3 arranged, two annular grooves about having respectively on the inwall of left and right sides valve seat orifice on two valve seats respectively.In order to realize the initial sealing of import and export end, about must keep certain initial specific pressure between two valve seats and the flashboard, even about two valve seats 2 the latter two size of gap ratio flashboard of valve body 1 of packing into little, behind the flashboard of packing into, two valve seats 2 will be pressed on two sides of flashboard and produce initial specific pressure.But this also makes when assembling, can not directly put into flashboard between two valve seats 2 about under the free state, must oppress two valve seats 2, two wavy spring 5 compressions about making, thereby make left and right sides valve seat 2 can be respectively along the valve seat installing hole 4 at its place move axially and mutually away from so that flashboard can be packed into.Because the space in the valve body 1 is less, cause and making or during maintenance floating valve seat formula flat gate valve, spacing about strutting between two valve seats 2 and the work that flashboard is installed waste time and energy, operates comparatively difficult.
Three, summary of the invention
The utility model provides a kind of flat gate valve chest expander, and it has solved the relatively more difficult problem of flashboard installation that existing floating valve seat formula flat gate valve causes because of the spacing of left and right sides valve seat is less.
The technical solution of the utility model realizes by following measure: a kind of flat gate valve chest expander comprises big footpath claw, path claw, rotating shaft, lower link, upper connecting rod, gripper shoe, arm-tie and force application rod; The top of big footpath claw and the bottom of path claw are hinged by rotating shaft, there is the lower convex platform in the annular groove that can snap on the valve seat orifice inwall lower end of big footpath claw, there is the convex platform in the annular groove that can snap on the valve seat orifice inwall upper end of path claw, there is lower link position near lower convex platform on the claw of big footpath, and there is upper connecting rod the position near convex platform on the path claw; The right-hand member of lower link and upper connecting rod passes gripper shoe and is fixedly mounted on the arm-tie, gripper shoe is sleeved on lower link and the upper connecting rod and the energy move left and right, the middle part of arm-tie is equipped with force application rod, and the left end of force application rod extend out to the arm-tie left side and can regulate the length of stretching out.
Be further optimization and/or improvements below to above-mentioned utility model technical scheme:
Can there be the lower link screw position near lower convex platform on the claw of above-mentioned big footpath, can there be the upper connecting rod screw position near convex platform on the path claw, there is the lower link fixing hole position of the corresponding lower link screw in the bottom of arm-tie, and there is the upper connecting rod fixing hole position of the corresponding upper connecting rod screw in the top of arm-tie; The left end of lower link and upper connecting rod has connecting thread respectively, and the right-hand member of lower link and upper connecting rod has retaining thread respectively; The left end of lower link is fixedly mounted in the lower link screw by connecting thread, and the right-hand member of lower link is fixedly mounted on the bottom of arm-tie by retaining thread, lower link fixing hole and following hold-down nut; The left end of upper connecting rod is fixedly mounted in the upper connecting rod screw by connecting thread, and the right-hand member of upper connecting rod is fixedly mounted on the top of arm-tie by retaining thread, upper connecting rod fixing hole and last hold-down nut.
The position of corresponding lower link fixing hole and upper connecting rod fixing hole can have lower link through hole and upper connecting rod through hole respectively on the above-mentioned gripper shoe, the bottom of gripper shoe is sleeved on the lower link by the lower link through hole and the energy move left and right, and the top of gripper shoe is sleeved on the upper connecting rod by the upper connecting rod through hole and the energy move left and right.
The right-hand member of above-mentioned force application rod can have homalocephalus or square toes or turret head; Can there be application of force tapped through hole at the middle part of arm-tie, and there is external screw thread at the middle part of force application rod and is installed on the arm-tie by external screw thread and application of force tapped through hole; The left end of force application rod can have top, and the right-hand member middle part of gripper shoe has and the corresponding location of top shape pit, and top being pressed on the inwall of locating pit also can be rotated.
U-lag can be arranged at the top of above-mentioned big footpath claw, the bottom of path claw is installed in the U-lag and can rotates, the rotating shaft through hole is arranged at the bottom of path claw, the position of corresponding rotating shaft through hole has the rotating shaft installing hole respectively on two side plates of U-lag, the middle part of rotating shaft is sleeved in the rotating shaft through hole and can rotates, and the two ends of rotating shaft are installed on two side plates of U-lag by the rotating shaft installing hole respectively.
One end of above-mentioned rotating shaft can have positive stop lug boss, and the other end of rotating shaft has pin-and-hole, and split pin is installed in the pin-and-hole.
The utility model reasonable and compact in structure, easy to use, it is by the annular groove on lower convex platform and the convex platform chucking valve seat orifice inwall, promote arm-tie and drive lower convex platform and convex platform pulling valve seat is shifted to the valve body outer end by turning force application rod away from valve body and by lower link and upper connecting rod, thereby two valve seats produce enough spacings with the flashboard of packing into about making, have characteristics safe, laborsaving, easy, efficient, stable and reliable for performance, be specially adapted to the manufacturing and the maintenance of flat gate valve.
Four, description of drawings
Accompanying drawing 1 is looked the sectional structure schematic diagram for the master of the utility model most preferred embodiment.
Accompanying drawing 2 is looked and is partly cutd open structural representation for the utility model most preferred embodiment is fixedly mounted on master in the valve body.
Accompanying drawing 3 is the local structure for amplifying schematic diagram at A place in the accompanying drawing 2.
Accompanying drawing 4 is analysed and observe the structure for amplifying schematic diagram for B-B place in the accompanying drawing 3.
Coding in the accompanying drawing is respectively: 1 is valve body, and 2 is valve seat, and 3 is valve body hole, and 4 is the valve seat installing hole, 5 is wavy spring, and 6 is valve seat orifice, and 7 is the annular groove on the valve seat orifice inwall, 8 is big footpath claw, and 9 is the path claw, and 10 are rotating shaft, 11 is lower link, and 12 is upper connecting rod, and 13 is gripper shoe, 14 is arm-tie, and 15 is force application rod, and 16 is lower convex platform, 17 is convex platform, and 18 is the lower link screw, and 19 is the upper connecting rod screw, 20 is the lower link fixing hole, and 21 is the upper connecting rod fixing hole, and 22 is connecting thread, 23 is retaining thread, and 24 are following hold-down nut, and 25 is last hold-down nut, 26 is the lower link through hole, and 27 is the upper connecting rod through hole, and 28 is square toes, 29 is application of force tapped through hole, and 30 is top, and 31 are the location pit, 32 is U-lag, and 33 are the rotating shaft through hole, and 34 are the rotating shaft installing hole, 35 is positive stop lug boss, and 36 is pin-and-hole, and 37 are split pin.
Five, the specific embodiment
The utility model is not subjected to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.
Below in conjunction with most preferred embodiment and accompanying drawing the utility model is further described:
Shown in accompanying drawing 1,2, this flat gate valve chest expander comprises big footpath claw 8, path claw 9, rotating shaft 10, lower link 11, upper connecting rod 12, gripper shoe 13, arm-tie 14 and force application rod 15; The top of big footpath claw 8 and the bottom of path claw 9 are hinged by rotating shaft 10, there is the lower convex platform 16 in the annular groove 7 that can snap on the valve seat orifice inwall lower end of big footpath claw 8, there is the convex platform 17 in the annular groove 7 that can snap on the valve seat orifice inwall upper end of path claw 9, there is lower link 11 position near lower convex platform 16 on the claw 8 of big footpath, and there is upper connecting rod 12 position near convex platform 17 on the path claw 9; The right-hand member of lower link 11 and upper connecting rod 12 passes gripper shoe 13 and is fixedly mounted on the arm-tie 14, gripper shoe 13 is sleeved on lower link 11 and the upper connecting rod 12 and the energy move left and right, the middle part of arm-tie 14 is equipped with force application rod 15, and the left end of force application rod 15 extend out to arm-tie 14 left sides and can regulate the length of stretching out.Can be by rotating shaft 10 with big footpath claw 8 and path claw 9 folding packing up, after waiting to stretch into annular groove 7 positions of valve body hole 3 to the valve seat orifice inwall, open big footpath claw 8 and path claw 9 again and make lower convex platform 16 and convex platform 17 snaps in the annular groove 7 on the valve seat orifice inwall, then compress gripper shoe 13 by the extension elongation of adjusting force application rod 15, gripper shoe 13 is pressed on again on the end face of valve body 1, thereby can oppositely promote arm-tie 14 gradually away from the end face of valve body 1, arm-tie 14 drives lower convex platform 16 and convex platform 17 outer moving by lower link 11 and upper connecting rod 12 again, thereby realize compressed waveform spring 5, the elastic force pulling valve seat 2 that overcomes wavy spring 5 outwards is shifted.By two valve seats 2 about making respectively along separately valve seat installing hole 4 outwards move and mutually away from so that flashboard can more easily be packed into and be realized initial sealing.
Can according to actual needs above-mentioned flat gate valve chest expander be made further optimization and/or improvements:
Shown in accompanying drawing 1,2,3,4, there is lower link screw 18 position near lower convex platform 16 on the claw 8 of big footpath, there is upper connecting rod screw 19 position near convex platform 17 on the path claw 9, there is lower link fixing hole 20 position of the corresponding lower link screw 18 in the bottom of arm-tie 14, and there is upper connecting rod fixing hole 21 position of the corresponding upper connecting rod screw 19 in the top of arm-tie 14; The left end of lower link 11 and upper connecting rod 12 has connecting thread 22 respectively, and the right-hand member of lower link 11 and upper connecting rod 12 has retaining thread 23 respectively; The left end of lower link 11 is fixedly mounted in the lower link screw 18 by connecting thread 22, and the right-hand member of lower link 11 is fixedly mounted on the bottom of arm-tie 14 by retaining thread 23, lower link fixing hole 20 and following hold-down nut 24; The left end of upper connecting rod 12 is fixedly mounted in the upper connecting rod screw 19 by connecting thread 22, and the right-hand member of upper connecting rod 12 is fixedly mounted on the top of arm-tie 14 by retaining thread 23, upper connecting rod fixing hole 21 and last hold-down nut 25.The axis of lower link 11 become with the axis of upper connecting rod 12 180 degree can make the pulling force of lower link 11 and upper connecting rod 12 pulling force the two balance each other, thereby valve seat 2 is outwards moved up and down equably.Connecting thread 22 and retaining thread 23 can make the assembling between each part connect rapidly and firmly.
Shown in accompanying drawing 1,2, the position of corresponding lower link fixing hole 20 and upper connecting rod fixing hole 21 has lower link through hole 26 and upper connecting rod through hole 27 respectively on the gripper shoe 13, the bottom of gripper shoe 13 is sleeved on the lower link 11 by lower link through hole 26 and the energy move left and right, and the top of gripper shoe 13 is sleeved on the upper connecting rod 12 by upper connecting rod through hole 27 and the energy move left and right.By lower link through hole 26 and upper connecting rod through hole 27, lower link 11 and upper connecting rod 12 can stretch out gripper shoe 13 and move left and right, lower link through hole 26 and upper connecting rod through hole 27 can also play auxiliary restriction in addition, are positioned at same plane and can deflection take place because of unbalance stress with axis, the axis of upper connecting rod 12 and the axis of valve body hole 3 that keeps lower link 11.
Shown in accompanying drawing 1,2, the right-hand member of force application rod 15 has homalocephalus or square toes 28 or turret head; There is application of force tapped through hole 29 at the middle part of arm-tie 14, and there is external screw thread at the middle part of force application rod 15 and is installed on the arm-tie 14 by external screw thread and application of force tapped through hole 29; It is top 30 that the left end of force application rod 15 has, and the right-hand member middle part of gripper shoe 13 has and is pressed on the inwall of location pit 31 with the corresponding location of top 30 shapes pit 31, top 30 and can rotates.Can turn force application rod 15 easily by homalocephalus or square toes 28 or turret head, can make the pressure of 15 pairs of valve body 1 right-hand members of force application rod keep balance by top 30 with location pit 31, the frictional resistance of 13 pairs of force application rod 15 left ends of gripper shoe in the time of can also reducing force application rod 15 rotations.
Shown in accompanying drawing 3,4, U-lag 32 is arranged at the top of big footpath claw 8, the bottom of path claw 9 is installed in the U-lag 32 and can rotates, rotating shaft through hole 33 is arranged at the bottom of path claw 9, the position of corresponding rotating shaft through hole 33 has rotating shaft installing hole 34 respectively on two side plates of U-lag 32, the middle part of rotating shaft 10 is sleeved in the rotating shaft through hole 33 and can rotates, and the two ends of rotating shaft 10 are installed on two side plates of U-lag 32 by rotating shaft installing hole 34 respectively.Can improve the intensity of big footpath claw 8 and path claw 9 junctions by U-lag 32.
As shown in Figure 3, an end of rotating shaft 10 has positive stop lug boss 35, and the other end of rotating shaft 10 has pin-and-hole 36, and split pin 37 is installed in the pin-and-hole 36.Rotating shaft 10 can be taken off in rotating shaft installing hole 34 by taking down split pin 37, thereby be convenient to big footpath claw 8 and path claw 9 are split.
In addition, by changing the size of big footpath claw 8, path claw 9 and gripper shoe 13, can be to the pulling of the valve seat 2 of the flat gate valve of different size, with the assembling of the flat gate valve of realizing different size.
Above technical characterictic has constituted most preferred embodiment of the present utility model, and it has stronger adaptability and best implementation result, can increase and decrease non-essential technical characterictic according to actual needs, satisfies the demand of different situations.
The course of work of the utility model most preferred embodiment is: at first, right part at valve body 1 is installed the utility model: hand-held lower link 11 and upper connecting rod 12, by closing up lower link 11 and upper connecting rod 12, big footpath claw 8 and path claw 9 10 are rotated to an angle around the shaft, can in valve body hole 3, pass through until big footpath claw 8 and path claw 9, the position of will big footpath claw 8 putting the annular groove 7 to the valve seat orifice inwall by valve body hole 3, rotating lower link 11 and upper connecting rod 12 makes big footpath claw 8 and path claw 9 be mutually 180 degree and is stuck in the annular groove 7 on the valve seat orifice inwall, gripper shoe 13 is sleeved on lower link 11 and upper connecting rod 12 by lower link through hole 26 and upper connecting rod through hole 27, make the left side of gripper shoe 13 be adjacent to the right-hand member of valve body 1, load onto arm-tie 14 and by down hold-down nut 24 and last hold-down nut 25 are locked at the right-hand member of lower link 11 and upper connecting rod 12 afterwards, strut the distance of arm-tie 14 and gripper shoe 13 by rotation force application rod 15, promptly force the right-hand member of arm-tie 14 away from valve body 1, drive big footpath claws 8 by lower link 11 and upper connecting rod 12 simultaneously and path claw 9 moves to the right-hand member of valve body 1, finally spur valve seat 2 and in valve seat installing hole 4, move to the right-hand member of valve body 1; Then, making uses the same method installs another the utility model at the left part of valve body 1, and the valve seat 2 of pulling left part outwards moves it in the valve seat installing hole 4 of left part, produce the displacement to valve body 1 left end; At last, when the displacement of two valve seat 2 generations is enough to put into flashboard about treating, flashboard is packed between two valve seats 2, opposite spin force application rod 15, this moment, flashboard and valve seat 2 fitted tightly, and backed out down hold-down nut 24 and last hold-down nut 25, took down arm-tie 14 and gripper shoe 13, pull lower link 11 and upper connecting rod 12 closes up it, the utility model is taken out by valve body hole 3.
Claims (9)
1. a flat gate valve chest expander comprises big footpath claw, path claw, rotating shaft, lower link, upper connecting rod, gripper shoe, arm-tie and force application rod; The top of big footpath claw and the bottom of path claw are hinged by rotating shaft, there is the lower convex platform in the annular groove that can snap on the valve seat orifice inwall lower end of big footpath claw, there is the convex platform in the annular groove that can snap on the valve seat orifice inwall upper end of path claw, there is lower link position near lower convex platform on the claw of big footpath, and there is upper connecting rod the position near convex platform on the path claw; The right-hand member of lower link and upper connecting rod passes gripper shoe and is fixedly mounted on the arm-tie, gripper shoe is sleeved on lower link and the upper connecting rod and the energy move left and right, the middle part of arm-tie is equipped with force application rod, and the left end of force application rod extend out to the arm-tie left side and can regulate the length of stretching out.
2. flat gate valve chest expander according to claim 1, it is characterized in that there is the lower link screw position near lower convex platform on the claw of big footpath, there is the upper connecting rod screw position near convex platform on the path claw, there is the lower link fixing hole position of the corresponding lower link screw in the bottom of arm-tie, and there is the upper connecting rod fixing hole position of the corresponding upper connecting rod screw in the top of arm-tie; The left end of lower link and upper connecting rod has connecting thread respectively, and the right-hand member of lower link and upper connecting rod has retaining thread respectively; The left end of lower link is fixedly mounted in the lower link screw by connecting thread, and the right-hand member of lower link is fixedly mounted on the bottom of arm-tie by retaining thread, lower link fixing hole and following hold-down nut; The left end of upper connecting rod is fixedly mounted in the upper connecting rod screw by connecting thread, and the right-hand member of upper connecting rod is fixedly mounted on the top of arm-tie by retaining thread, upper connecting rod fixing hole and last hold-down nut.
3. flat gate valve chest expander according to claim 1 and 2, it is characterized in that the position of corresponding lower link fixing hole and upper connecting rod fixing hole has lower link through hole and upper connecting rod through hole respectively on the gripper shoe, the bottom of gripper shoe is sleeved on the lower link by the lower link through hole and the energy move left and right, and the top of gripper shoe is sleeved on the upper connecting rod by the upper connecting rod through hole and the energy move left and right.
4. flat gate valve chest expander according to claim 1 and 2 is characterized in that the right-hand member of force application rod has homalocephalus or square toes or turret head; There is application of force tapped through hole at the middle part of arm-tie, and there is external screw thread at the middle part of force application rod and is installed on the arm-tie by external screw thread and application of force tapped through hole; The left end of force application rod has top, and the right-hand member middle part of gripper shoe has and the corresponding location of top shape pit, and top being pressed on the inwall of locating pit also can be rotated.
5. flat gate valve chest expander according to claim 3 is characterized in that the right-hand member of force application rod has homalocephalus or square toes or turret head; There is application of force tapped through hole at the middle part of arm-tie, and there is external screw thread at the middle part of force application rod and is installed on the arm-tie by external screw thread and application of force tapped through hole; The left end of force application rod has top, and the right-hand member middle part of gripper shoe has and the corresponding location of top shape pit, and top being pressed on the inwall of locating pit also can be rotated.
6. flat gate valve chest expander according to claim 4, U-lag is arranged at the top that it is characterized in that big footpath claw, the bottom of path claw is installed in the U-lag and can rotates, the rotating shaft through hole is arranged at the bottom of path claw, the position of corresponding rotating shaft through hole has the rotating shaft installing hole respectively on two side plates of U-lag, the middle part of rotating shaft is sleeved in the rotating shaft through hole and can rotates, and the two ends of rotating shaft are installed on two side plates of U-lag by the rotating shaft installing hole respectively.
7. flat gate valve chest expander according to claim 5, U-lag is arranged at the top that it is characterized in that big footpath claw, the bottom of path claw is installed in the U-lag and can rotates, the rotating shaft through hole is arranged at the bottom of path claw, the position of corresponding rotating shaft through hole has the rotating shaft installing hole respectively on two side plates of U-lag, the middle part of rotating shaft is sleeved in the rotating shaft through hole and can rotates, and the two ends of rotating shaft are installed on two side plates of U-lag by the rotating shaft installing hole respectively.
8. flat gate valve chest expander according to claim 6 is characterized in that an end of rotating shaft has positive stop lug boss, and the other end of rotating shaft has pin-and-hole, and split pin is installed in the pin-and-hole.
9. flat gate valve chest expander according to claim 7 is characterized in that an end of rotating shaft has positive stop lug boss, and the other end of rotating shaft has pin-and-hole, and split pin is installed in the pin-and-hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920164459XU CN201471370U (en) | 2009-09-17 | 2009-09-17 | Flat-plate gate valve tensioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920164459XU CN201471370U (en) | 2009-09-17 | 2009-09-17 | Flat-plate gate valve tensioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201471370U true CN201471370U (en) | 2010-05-19 |
Family
ID=42407611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920164459XU Expired - Lifetime CN201471370U (en) | 2009-09-17 | 2009-09-17 | Flat-plate gate valve tensioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201471370U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103341844A (en) * | 2013-07-15 | 2013-10-09 | 天津百利展发集团有限公司 | Installation tool for gate valve base |
-
2009
- 2009-09-17 CN CN200920164459XU patent/CN201471370U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103341844A (en) * | 2013-07-15 | 2013-10-09 | 天津百利展发集团有限公司 | Installation tool for gate valve base |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100519 |
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| CX01 | Expiry of patent term |