CN102563091A - Ultrahigh pressure detection stop valve - Google Patents
Ultrahigh pressure detection stop valve Download PDFInfo
- Publication number
- CN102563091A CN102563091A CN2011104384632A CN201110438463A CN102563091A CN 102563091 A CN102563091 A CN 102563091A CN 2011104384632 A CN2011104384632 A CN 2011104384632A CN 201110438463 A CN201110438463 A CN 201110438463A CN 102563091 A CN102563091 A CN 102563091A
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- valve rod
- valve
- ultrahigh pressure
- valve body
- stop valve
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Abstract
The invention discloses an ultrahigh pressure detection stop valve and mainly solves the problem of poor sealing effect of a traditional stop valve under the work condition of high pressure. The ultrahigh pressure detection stop valve is characterized in that an upper valve rod (6) is in threaded connection with the inside of a terminal joint (5); a T-shaped groove (7) is formed in the lower end of the upper valve rod (6); a lower valve rod (8) is clamped in the T-shaped groove (7) and can rotate relative to the upper valve rod (6); a horizontal blind hole (9) is formed in the lower end of the lower valve rod (8); a ball head (2) is arranged in the blind hole (9); and a plane (11) attached to the bottom surface of the blind hole (9) is arranged on the ball head (2). According to the ultrahigh pressure detection stop valve, due to the adoption of a three-section type structure, namely the upper valve rod, the lower valve rod and the ball head, the position of a sealing line cannot be changed when the valve is opened or closed each time and further the ultrahigh pressure detection stop valve has better sealing performance and longer service life. Meanwhile, the connecting strength between the valve body and a pipeline is higher, so that the work condition of a high-pressure medium can be met.
Description
Technical field
The present invention relates to a kind of valve, be specifically related to a kind of ultrahigh pressure and detect stop valve.
Background technique
Stop valve is a kind of valve of using always, is used for cut-out, adjusting or the throttling of pipeline medium.Existing stop valve mainly is made up of valve body, valve seat, valve rod and flap; Flap is connected an end of valve rod and corresponding with valve seat; Rotary valve rod makes the center line moving linearly of flap along valve seat; Realize the aperture between flap and the valve seat, sealing surface is the plane or the conical surface, and flap also has linear sealing between the mode that adopts bulb and the valve seat.There is following defective in this stop valve: 1. because valve rod is a monolithic construction, and the valve stem seal head that causes because of processing and alignment error and the disalignment in valve seal hole, thus influence sealing effect.2. when flap adopted bulb, bulb was included in the end of valve rod, when throttle down; Bulb can produce small rolling, because the error of bulb circularity causes the potted line position to change; Therefore particularly pipeline medium is difficult to reach the sealability that assembling is reached when dispatching from the factory under the situation of high pressure, often occurs dispatching from the factory suppressing detecting qualified and the user suppresses underproof phenomenon when using; Valve is short working life, brings loss to production.3. the import on the valve body generally is to adopt the mode of welding to be connected with pipeline with outlet; But there are some occasions to be not suitable for adopting welding (like inflammable and explosive occasion); Can only adopt the pipe joint of FERRULETYPE to be connected with pipeline; When medium is pressed when higher, Bite type fittings is difficult to carry, and pipe can come off from the joint.
Summary of the invention
In order to overcome the deficiency of existing stop valve sealing effect difference when the high pressure operating mode; The present invention provides a kind of ultrahigh pressure to detect stop valve; This ultrahigh pressure detects the Placement that stop valve has changed original valve rod and bulb, and valve rod adopts three stage structure, i.e. upper valve rod, lower valve rod and bulb; The position of potted line can not change when each unlatching or throttle down, has better seal performance and long working life.Simultaneously, the join strength between valve body and the pipeline is higher, can satisfy the operating mode of high-pressure medium.
Technological scheme of the present invention is: this ultrahigh pressure detects stop valve and comprises valve body and bulb, and valve body is provided with import and outlet, is fixed with whole joint on the valve body; Whole joint internal thread connects upper valve rod, and the upper valve rod lower end is provided with the T-shape groove, is connected with lower valve rod in the T-shape groove; Lower valve rod upper valve rod relatively rotates; The lower end of lower valve rod is provided with flat blind hole, comprises bulb in the blind hole, and described bulb is provided with the plane of pasting mutually with the blind hole bottom surface.
The upper end of described lower valve rod be provided with upper valve rod on the clamping head that is complementary of T-shape groove.
Import on the described valve body and outlet port all are equipped with screw thread gland and pressed joint, have the internal thread that is connected with pipe on the screw thread gland, and pressed joint is threaded with valve body and ability collet threaded gland, and the inner of import and outlet is provided with conical seal (contact) face.
The import of described valve body is equipped with the seepage peep hole that is interlinked to the outside with valve body with the outlet inwall.
Back-up ring, sealing gasket and gland are installed between described lower valve rod and the valve body, and gland is compressed by whole joint.
Described sealing gasket is a plurality of annular graphite packings.
The part that described whole joint stretches out valve body is the prismatic face, and being fixed with on the valve body coincide is enclosed within whole the stopper ring on the joint.
Described upper valve rod is provided with the boss that blocks mutually with whole joint, and boss limits the position that upper valve rod screws out.
The present invention has following beneficial effect: owing to take such scheme; Changed the Placement of original valve rod and bulb; Valve rod adopts three stage structure; Be upper valve rod, lower valve rod and bulb, open at every turn or during throttle down the position of potted line can not change, have better seal performance and long working life.Simultaneously, the join strength between valve body and the pipeline is higher, can satisfy the operating mode of high-pressure medium.
Description of drawings
Accompanying drawing 1 is a structure sectional view of the present invention.
1-valve body among the figure, 2-bulb, 3-import, 4-outlet, whole joint of 5-; The 6-upper valve rod, 7-T-shape groove, 8-lower valve rod, 9-blind hole, 10-boss; The 11-plane, 12-clamping head, 13-screw thread gland, 14-pressed joint, 15-seepage peep hole; The 16-back-up ring, 17-sealing gasket, 18-gland, 19-stopper ring.
Embodiment
Below in conjunction with accompanying drawing the present invention is described further:
By shown in Figure 1; This ultrahigh pressure detects stop valve and comprises valve body 1 and bulb 2, and valve body 1 adopts integral design, can satisfy higher temperature and pressure requirement; It is higher to make it have under the temperature conditions that equates a compression resistance, the advantage of heatproof Du Genggao under the pressure condition that equates.Valve body 1 is provided with import 3 and outlet 4, is fixed with whole joint 5 on the valve body 1, and whole joint 5 internal threads connect upper valve rod 6; Upper valve rod 6 lower ends are provided with T-shape groove 7; Be connected with lower valve rod 8 in the T-shape groove 7, lower valve rod 8 upper valve rod 6 relatively rotates, and the lower end of lower valve rod 8 is provided with flat blind hole 9; Comprise bulb 2 in the blind hole 9, described bulb 2 is provided with the plane 11 of pasting mutually with blind hole 9 bottom surfaces.Adopt T-shape groove 7 to be connected between upper valve rod 6 and the lower valve rod 8; Make it have controllability; Avoided the disalignment in bulb 2 that the integrated type valve rod causes because of processing and alignment error and valve seal hole, the plane 11 on the bulb 2 is attached to blind hole 9 bottom surfaces of lower valve rod 8, define the rolling of bulb 2; Make bulb 2 produce minor rotation, the position that makes it when sealing, guarantee the potted line invariant position and can regulate bulb and valve seal hole among a small circle around the axis of lower valve rod 8.The present invention has changed the Placement of original valve rod and bulb 2; Valve rod adopts three stage structure; Be upper valve rod 6, lower valve rod 8 and bulb 2, open at every turn or during throttle down the position of potted line can not change, have better seal performance and long working life.
The upper end of described lower valve rod 8 be provided with upper valve rod 6 on the clamping that is complementary of T-shape groove 7 12.Clamping 12 can freely be rotated in T-shape groove 7 and can minor shifts, and is simple in structure, easy to process.
The import 3 of described valve body 1 is equipped with the seepage peep hole 15 that is interlinked to the outside with valve body 1 with outlet 4 inwalls.When import 3 produced leakage with outlet 4, medium was exuded to outside the valve body 1 through seepage peep hole 15, is convenient to observe.
Back-up ring 16, sealing gasket 17 and gland 18 are installed between described lower valve rod 8 and the valve body 1, and gland 18 is compressed by whole joint 5.Connecting thread between upper valve rod 6 and whole the joint 5 is in the outside of sealing gasket 17, avoided medium to enter into threaded area and double thread causes burn into to produce to sting silk.
Described sealing gasket 17 is a plurality of annular graphite packings.Sealing is reliable, can be used for low contaminated-fluid.On-line maintenance and replacing are convenient in the graphite packing of separated type annular, can onlinely regulate.
The part that described whole joint 5 stretches out valve body 1 is the prismatic face, and being fixed with on the valve body 1 coincide is enclosed within whole the stopper ring 19 on the joint 5.The part that whole joint 5 of present embodiment stretches out valve body 1 is six prismatics, and stopper ring 19 is connected with valve body 1 through screw.
Described upper valve rod 6 is provided with the boss 10 that blocks mutually with whole joint 5, and boss 10 limits the position that upper valve rod 6 screws out.Guarantee valve when opening and overhaul, upper valve rod 6 can not deviate from from valve body 1.
Claims (8)
1. a ultrahigh pressure detects stop valve, comprises valve body (1) and bulb (2), and valve body (1) is provided with import (3) and outlet (4); It is characterized in that: be fixed with whole joint (5) on the valve body (1); Whole joint (5) internal thread connects upper valve rod (6), and upper valve rod (6) lower end is provided with T-shape groove (7), is connected with lower valve rod (8) in the T-shape groove (7); Lower valve rod (8) upper valve rod (6) relatively rotates; The lower end of lower valve rod (8) is provided with flat blind hole (9), comprises bulb (2) in the blind hole (9), and described bulb (2) is provided with the plane (11) of pasting mutually with blind hole (9) bottom surface.
2. ultrahigh pressure according to claim 1 detects stop valve, it is characterized in that: the upper end of described lower valve rod (8) be provided with upper valve rod (6) on the clamping head (12) that is complementary of T-shape groove (7).
3. ultrahigh pressure according to claim 1 and 2 detects stop valve; It is characterized in that: import (3) on the valve body (1) and outlet (4) locate all to be equipped with screw thread gland (13) and pressed joint (14); The screw thread gland has the internal thread that is connected with pipe on (13); Pressed joint (14) is threaded with valve body (1) and ability collet threaded gland (13), and the inner of import (3) and outlet (4) is provided with conical seal (contact) face (20).
4. ultrahigh pressure according to claim 3 detects stop valve, it is characterized in that: the import (3) of valve body (1) and outlet (4) inwall are equipped with the seepage peep hole (15) that is interlinked to the outside with valve body (1).
5. ultrahigh pressure according to claim 1 and 2 detects stop valve, and it is characterized in that: back-up ring (16), sealing gasket (17) and gland (18) are installed between lower valve rod (8) and the valve body (1), and gland (18) is compressed by whole joint (5).
6. ultrahigh pressure according to claim 5 detects stop valve, it is characterized in that: sealing gasket (17) is a plurality of annular graphite packings.
7. ultrahigh pressure according to claim 1 and 2 detects stop valve, and it is characterized in that: the part that whole joint (5) stretches out valve body (1) is the prismatic face, and being fixed with on the valve body (1) coincide is enclosed within the stopper ring (19) on whole the joint (5).
8. ultrahigh pressure according to claim 1 and 2 detects stop valve, and it is characterized in that: upper valve rod (6) is provided with the boss (10) that blocks mutually with whole joint (5), and boss (10) limits the position that upper valve rod (6) screws out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104384632A CN102563091A (en) | 2011-12-24 | 2011-12-24 | Ultrahigh pressure detection stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104384632A CN102563091A (en) | 2011-12-24 | 2011-12-24 | Ultrahigh pressure detection stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102563091A true CN102563091A (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104384632A Pending CN102563091A (en) | 2011-12-24 | 2011-12-24 | Ultrahigh pressure detection stop valve |
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| Country | Link |
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| CN (1) | CN102563091A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937189A (en) * | 2012-11-16 | 2013-02-20 | 镇江市华阳机电制造有限公司 | Needle valve with two-piece valve rods |
| CN109443634A (en) * | 2018-12-25 | 2019-03-08 | 四川优机实业股份有限公司 | Laminated structure is surveyed in sealing |
| CN111734833A (en) * | 2020-05-15 | 2020-10-02 | 扬州润盈机械有限公司 | Novel structure for solving small hole sealing |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2486788Y (en) * | 2001-06-15 | 2002-04-17 | 张英杰 | Straight line lifting high, medium and low pressure stop valve |
| CN2573790Y (en) * | 2002-09-03 | 2003-09-17 | 张明兴 | Double cutting ferrule stop valve |
| RU2241166C1 (en) * | 2003-03-27 | 2004-11-27 | Мыза Сергей Александрович | Stop valve |
| CN200982423Y (en) * | 2006-11-09 | 2007-11-28 | 上海气体阀门总厂 | Compressed natural gas check valve for vehicle use |
| CN201103698Y (en) * | 2007-09-17 | 2008-08-20 | 江西船用阀门厂 | Balancing type break valve |
| DE102008010765A1 (en) * | 2008-02-25 | 2009-08-27 | Kieback & Peter Gmbh & Co. Kg | Valve arrangement for liquid-conveying pipeline in heating and air-conditioning technology, has opening with region comprising breadth smaller than dimension of valve rod, and another region with breadth larger than dimension of rod |
| CN101571195A (en) * | 2009-06-03 | 2009-11-04 | 江苏海纳机电集团有限公司 | Instrument valve |
| CN201851685U (en) * | 2010-11-15 | 2011-06-01 | 成都凯天电子股份有限公司 | Ultrahigh pressure gauge valve |
| CN202371180U (en) * | 2011-12-24 | 2012-08-08 | 浙江方顿仪表阀门有限公司 | Ultrahigh pressure detecting stop valve |
-
2011
- 2011-12-24 CN CN2011104384632A patent/CN102563091A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2486788Y (en) * | 2001-06-15 | 2002-04-17 | 张英杰 | Straight line lifting high, medium and low pressure stop valve |
| CN2573790Y (en) * | 2002-09-03 | 2003-09-17 | 张明兴 | Double cutting ferrule stop valve |
| RU2241166C1 (en) * | 2003-03-27 | 2004-11-27 | Мыза Сергей Александрович | Stop valve |
| CN200982423Y (en) * | 2006-11-09 | 2007-11-28 | 上海气体阀门总厂 | Compressed natural gas check valve for vehicle use |
| CN201103698Y (en) * | 2007-09-17 | 2008-08-20 | 江西船用阀门厂 | Balancing type break valve |
| DE102008010765A1 (en) * | 2008-02-25 | 2009-08-27 | Kieback & Peter Gmbh & Co. Kg | Valve arrangement for liquid-conveying pipeline in heating and air-conditioning technology, has opening with region comprising breadth smaller than dimension of valve rod, and another region with breadth larger than dimension of rod |
| CN101571195A (en) * | 2009-06-03 | 2009-11-04 | 江苏海纳机电集团有限公司 | Instrument valve |
| CN201851685U (en) * | 2010-11-15 | 2011-06-01 | 成都凯天电子股份有限公司 | Ultrahigh pressure gauge valve |
| CN202371180U (en) * | 2011-12-24 | 2012-08-08 | 浙江方顿仪表阀门有限公司 | Ultrahigh pressure detecting stop valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937189A (en) * | 2012-11-16 | 2013-02-20 | 镇江市华阳机电制造有限公司 | Needle valve with two-piece valve rods |
| CN109443634A (en) * | 2018-12-25 | 2019-03-08 | 四川优机实业股份有限公司 | Laminated structure is surveyed in sealing |
| CN109443634B (en) * | 2018-12-25 | 2024-06-04 | 四川优机实业股份有限公司 | Sealing pressure measuring structure |
| CN111734833A (en) * | 2020-05-15 | 2020-10-02 | 扬州润盈机械有限公司 | Novel structure for solving small hole sealing |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120711 |