CN101363556A - Instrument block valve of double sealing structure with lower valve spindle not rotating - Google Patents
Instrument block valve of double sealing structure with lower valve spindle not rotating Download PDFInfo
- Publication number
- CN101363556A CN101363556A CNA2008101565973A CN200810156597A CN101363556A CN 101363556 A CN101363556 A CN 101363556A CN A2008101565973 A CNA2008101565973 A CN A2008101565973A CN 200810156597 A CN200810156597 A CN 200810156597A CN 101363556 A CN101363556 A CN 101363556A
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- valve rod
- lower valve
- valve
- steel ball
- guide pin
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Abstract
The invention provides an instrument block valve with a lower valve bar non-whirling double-sealing structure in a meter pipeline, and is characterized in that: one terminal of a lower valve bar is a valve core and the other terminal is a hole which is evenly distributed with a plurality of small holes; one terminal of an upper valve bar with a groove plugs into the hole of the lower valve bar; each groove of the small hole is provided with a steel ball and the steel ball is screwed in a screw guild sleeve to form a steel ball adjustable connecting structure; the lower fillings, the upper valve bar and the lower valve bar are arranged in a valve cover, and are screwed in a screw guild sleeve to tightly press the lower fillings between the lower valve bar and the valve cover to form a filling sealing structure. The valve cover passes through a sealing gasket, is screwed into the inner screw threads of the valve body, and is tightly sealed; an upper filling gasket, upper fillings and a filling pressure ring are arranged in an upper hole in the screw guild sleeve, and tightly press a nut to form an upper filling sealing structure. The top of the upper valve bar is provided with an upper handle or a hand wheel; the handle or the hand wheel rotate, which allows the lower valve to move up-and-down without rotation in the sealing lower fillings to execute starting and stopping.
Description
Technical field
The present invention relates to the design and the manufacturing of valve, be widely used in the industrial pipeline, the liquid in the instrumentation pipelines such as all kinds of flows in particularly controlling automatically, differential pressure, pressure, liquid level or the keying and the control gear of gas.
Background technique
At present, the instrument block valve of extensive use is all tightly embraced valve rod by filler and is realized sealing, need rotatable handle or handwheel to drive valve rod during operation and directly under the effect of stuffing box packing internal spiral lifting, carry out keying, because the valve rod spiral lifting produces very big frictional force and friction ractor in stuffing box packing, so wear and tear easily and operate effort, influence the working life and the pressure-resistant seal performance of valve.
Summary of the invention
In order to overcome existing instrument block valve packing seal position frictional force and big, the easy to wear deficiency of friction factor, the invention provides a kind of lower valve rod and do not rotate double sealing structure, make its friction factor little, long service life is operated free and relaxed.
Technological scheme of the present invention is:
A kind of lower valve rod does not rotate the instrument block valve of double sealing structure, form by valve body, valve gap, lower valve rod, upper valve rod, time filler, last filler, screw thread guide pin bushing etc., it is characterized in that: an end of lower valve rod is a spool, the other end is the hole, the bottom in hole is the plane, uniform 3～6 apertures on the relevant position of its circumference; The lower end surface of upper valve rod is a circular arc, is inserted in the hole of lower valve rod, and the circular arc end face is contacted with the base plane in hole, has both helped active force and has evenly distributed at the center of lower valve rod, helps the power of reducing friction again; All pack in each aperture steel ball of same size, steel ball places in the groove of upper valve rod bottom simultaneously, upper valve rod is screwed in the screw thread guide pin bushing simultaneously together with lower valve rod and the steel ball that is contained in the aperture, lower valve rod is coupled together by steel ball and upper valve rod actively, form the active linkage structure of steel ball.The two ends of following filler have following Packing seat to place the interior bottom of valve gap respectively, the upper valve rod and the lower valve rod that install are passed valve gap and following filler and following Packing seat to the appropriate location, locknut is threaded to the thread root of screw thread guide pin bushing, the screw thread guide pin bushing is screwed in upper valve rod and the valve gap, make its end face push down down Packing seat and following filler, and lower valve rod is threaded to the topmost part; The internal thread that the valve gap that installs is passed seal washer screw-in valve body is also fastening, forms sealing by seal washer between valve gap and the valve body; Screw and regulate the screw thread guide pin bushing, make it promote down Packing seat filler down is pressed between lower valve rod and the valve gap, form packing seal structure down, locknut is screwed locking.Be provided with packing seal structure in the upper end of screw thread guide pin bushing, to go up Packing seat, last filler and packing press ring and place screw thread guide pin bushing inside respectively in order, screw and regulate the active force of gland nut, make on it to seal between the filler and upper valve rod and screw thread guide pin bushing, form the sealing of second road and ensure.Handle or handwheel are installed in top at upper valve rod, and rotatable handle or handwheel drive the upper valve rod spiral lifting, under the effect of the active linkage structure of steel ball, make lower valve rod not rotate straight line motion up and down, carry out the open and close of valve.
Advantage of the present invention and beneficial effect are:
1, combined type valve gap design makes valve can both keep highly complete sealability and operating characteristics in various abominable applied environments.
2, lower valve rod rotary lifting movement not in following filler, frictional force and fricting movement amount minimum, the sealability of valve is better, and the life-span is longer.
3, go up and to adopt the active linkage structure of steel ball between the lower valve rod, the spin friction active force is dropped to minimum, make the operation of valve free and relaxed.
4, because following packing seal in lower valve rod and valve inner position, completely cuts off with medium, help the lubricated influence that is not subjected to medium of all motive position such as screw thread and the active linkage structure of steel ball.
5, the twice packing seal structure is arranged, formed double seal, double insurance, sealability is more safe and reliable.
6, because last packing seal effect makes it with outside isolated, be not subjected to external environment influence.
7, prevent to become flexible behind the valve closing, be particularly suitable for being applied in the occasion of vibrations.
Description of drawings
Fig. 1 does not rotate the instrument block valve structural drawing of double sealing structure for lower valve rod.
Fig. 2 is the active long splice composition of steel ball.
Among the figure: 1, valve body 2, lower valve rod 3, down filler 4, down Packing seat 5, seal washer 6, steel ball 7, valve gap 8, screw thread guide pin bushing 9, locknut 10, upper valve rod 11, go up Packing seat 12, go up filler 13, packing press ring 14, gland nut 15, handle or handwheel 16, plunger tip 17, Cock screw
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
A kind of lower valve rod does not rotate the instrument block valve of double sealing structure, form by valve body (1), valve gap (7), lower valve rod (2), upper valve rod (10), time filler (3), last filler (12), screw thread guide pin bushing (8) etc., it is characterized in that: an end of lower valve rod (2) is a spool, the other end is the hole, the bottom in hole is the plane, uniform 3～6 apertures on the relevant position of its circumference; The lower end surface of upper valve rod (10) is a circular arc, is inserted in the hole of lower valve rod (2), and the circular arc end face is contacted with the base plane in hole, has both helped active force and has evenly distributed at the center of lower valve rod (2), helps the power of reducing friction again; All pack in each aperture steel ball (6) of same size, steel ball (6) places in the groove of upper valve rod (10) bottom simultaneously, upper valve rod (10) is screwed in the screw thread guide pin bushing (8) simultaneously together with lower valve rod (2) and the steel ball (6) that is contained in the aperture, lower valve rod (2) is coupled together by steel ball (6) and upper valve rod (10) actively, form the active linkage structure of steel ball.The two ends of following filler (3) have following Packing seat (4) to place the interior bottom of valve gap (7) respectively, the upper valve rod (10) and the lower valve rod (2) that install are passed valve gap (7) and following filler (3) and following Packing seat (4) to the appropriate location, locknut (9) is threaded to the thread root of screw thread guide pin bushing (8), screw thread guide pin bushing (8) is screwed in upper valve rod (10) and the valve gap (7), make its end face push down down Packing seat (4) and following filler (3), and lower valve rod (2) is threaded to the topmost part; The internal thread that the valve gap that installs (7) is passed seal washer (5) screw-in valve body (1) is also fastening, forms sealing by seal washer (5) between valve gap (7) and the valve body (1); Screw and regulate screw thread guide pin bushing (8), Packing seat (4) is pressed on following filler (3) between lower valve rod (2) and the valve gap (7) to make it promote down, forms packing seal structure down, and locknut (9) is screwed locking.Top at screw thread guide pin bushing (8) is provided with packing seal structure, to go up Packing seat (11), last filler (12) and packing press ring (13) and place screw thread guide pin bushing (8) inside respectively in order, screw and regulate the active force of gland nut (14), make sealing between filler (12) and upper valve rod (10) and the screw thread guide pin bushing (8), form the sealing of second road and ensure.Handle or handwheel (15) are installed in top at upper valve rod (10), rotatable handle or handwheel (15) drive upper valve rod (10) spiral lifting, under the effect of the active linkage structure of steel ball, make lower valve rod (2) not rotate straight line motion up and down, carry out the open and close of valve.
Claims (4)
1, a kind of lower valve rod does not rotate the instrument block valve of double sealing structure, by valve body (1), valve gap (7), lower valve rod (2), following filler (3), last filler (12), screw thread guide pin bushing (8), upper valve rod compositions such as (10), it is characterized in that: the active linkage structure of last lower valve rod steel ball that will install, with the screw thread guide pin bushing that has packing seal structure, and the valve gap (7) of following packing seal structure, pass internal thread and fit sealing that seal washer (5) screws in valve body (1), rotation is contained in the handle or the handwheel (15) at upper valve rod (10) top, make not rotary lifting movement of lower valve rod (2), realize opening or closing.
2, according to the described active linkage structure of lower valve rod steel ball that goes up of claim 1, it is characterized in that: an end of lower valve rod (2) is a spool, the other end is the hole, the bottom in hole is the plane, uniform 3～6 apertures on the relevant position of its circumference, the lower end surface of upper valve rod (10) is a circular arc, be inserted in the hole of lower valve rod (2), the circular arc end face is contacted with the base plane in hole, in each aperture, all pack into the steel ball (6) of same size, steel ball (6) places in the groove of upper valve rod (10) bottom simultaneously, upper valve rod (10) is screwed in the screw thread guide pin bushing (8) simultaneously together with lower valve rod (2) and the steel ball (6) that is contained in the aperture, lower valve rod (2) is coupled together by steel ball (6) and upper valve rod (10) actively.
3, according to the described packing seal structure down of claim 1, it is characterized in that: the two ends of following filler (3) have following Packing seat (4) to place the interior bottom of valve gap (7) respectively, the upper valve rod (10) and the lower valve rod (2) that install are passed valve gap (7) and following filler (3) and following Packing seat (4) to the appropriate location, locknut (9) is threaded to the thread root of screw thread guide pin bushing (8), screw thread guide pin bushing (8) is screwed in upper valve rod (10) and the valve gap (7), make its end face push down down Packing seat (4) and reach filler (3) down, regulate the active force of screw thread guide pin bushing, make it promote Packing seat (4) down, to descend filler (3) to compress, be sealed between lower valve rod (2) and the valve gap (7), it is fixing to screw locknut (9).
4, according to the described packing seal structure that goes up of claim 1, it is characterized in that: will go up Packing seat (11), last filler (12) and packing press ring (13) and be installed in order respectively in the hole on screw thread guide pin bushing (8) top, screw and regulate the active force of gland nut (14), make sealing between filler (12) and upper valve rod (10) and the screw thread guide pin bushing (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101565973A CN101363556A (en) | 2008-10-13 | 2008-10-13 | Instrument block valve of double sealing structure with lower valve spindle not rotating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101565973A CN101363556A (en) | 2008-10-13 | 2008-10-13 | Instrument block valve of double sealing structure with lower valve spindle not rotating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101363556A true CN101363556A (en) | 2009-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101565973A Pending CN101363556A (en) | 2008-10-13 | 2008-10-13 | Instrument block valve of double sealing structure with lower valve spindle not rotating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101363556A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591335A (en) * | 2013-11-23 | 2014-02-19 | 江苏星河阀门有限公司 | Novel instrument three-valve manifold |
| CN103591336A (en) * | 2013-11-25 | 2014-02-19 | 江苏星河阀门有限公司 | Two-valve group of corrugated pipe instrument |
| CN103591337A (en) * | 2013-11-25 | 2014-02-19 | 江苏星河阀门有限公司 | Three-valve group of corrugated pipe instrument |
| CN103912695A (en) * | 2013-11-25 | 2014-07-09 | 江苏星河阀门有限公司 | Corrugated pipe instrument five valve group |
| CN105782558A (en) * | 2016-05-06 | 2016-07-20 | 上海沪航阀门有限公司 | Multiple and double-layer sealing packing gland device and using method |
| CN105952915A (en) * | 2016-07-14 | 2016-09-21 | 杭州安其拉科技有限公司 | Ammonia valve |
-
2008
- 2008-10-13 CN CNA2008101565973A patent/CN101363556A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591335A (en) * | 2013-11-23 | 2014-02-19 | 江苏星河阀门有限公司 | Novel instrument three-valve manifold |
| CN103591336A (en) * | 2013-11-25 | 2014-02-19 | 江苏星河阀门有限公司 | Two-valve group of corrugated pipe instrument |
| CN103591337A (en) * | 2013-11-25 | 2014-02-19 | 江苏星河阀门有限公司 | Three-valve group of corrugated pipe instrument |
| CN103912695A (en) * | 2013-11-25 | 2014-07-09 | 江苏星河阀门有限公司 | Corrugated pipe instrument five valve group |
| CN105782558A (en) * | 2016-05-06 | 2016-07-20 | 上海沪航阀门有限公司 | Multiple and double-layer sealing packing gland device and using method |
| CN105952915A (en) * | 2016-07-14 | 2016-09-21 | 杭州安其拉科技有限公司 | Ammonia valve |
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Open date: 20090211 |