CN2477900Y - Full metal sealing valve - Google Patents
Full metal sealing valve Download PDFInfo
- Publication number
- CN2477900Y CN2477900Y CN 00252000 CN00252000U CN2477900Y CN 2477900 Y CN2477900 Y CN 2477900Y CN 00252000 CN00252000 CN 00252000 CN 00252000 U CN00252000 U CN 00252000U CN 2477900 Y CN2477900 Y CN 2477900Y
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- China
- Prior art keywords
- sealing
- adjustable lever
- spool
- valve
- full
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Abstract
A full-metal sealing valve, which comprises a valve body, a spool, a sealing cap and a hand wheel etc, characterized in that: a cone is provided on the driving and regulating lever, which is, under the action of a spring, pressed into a taper hole of the same taper in the sealing cap to serve major sealing functions; a locking threaded disc, of a threaded outer circle and is threaded in a flexible manner with the threads inside the sealing cap, is strung on the driving and regulating lever; a limiting sealing pad which is pressed and fixed by the sealing cap on the valve body and has a square hole in the center, is socketed out of the spool. The valve is simply structured, without any non-metal sealing pieces, and is high-temperature and high-pressure resistant; besides, the utility model has a long service life, safe and reliable, widely adaptable and quite effective.
Description
The utility model relates to a kind of full-metallic sealed valve, belongs to the mechanical valve class.
At present, the sealing at its transmission adjustable lever place of known valve all is to adopt other nonmetallic material such as rubber or plastics to make Sealing, though good seal performance, it has several big shortcomings: 1, can not high temperature resistant, high pressure; 2, Sealing is easily aging degenerates, and working life is not long, needs frequent maintain and replace; 3, Security and reliability are not high.
The purpose of this utility model aims to provide a kind of full-metallic sealed valve of new structure, wishes that it can collect the advantage of above known valve, can overcome their defective again, reaching can be high temperature resistant, high pressure resistant, long service life, safe and reliable, do not seal easily damaged parts, do not need frequent maintenance.
This full-metallic sealed valve, form by valve body (1), spool (2), sealed cap (6), handwheel (8) and transmission adjustable lever (4) and spring seat (11), it is characterized in that: being provided with in the vertical main chamber of described valve body (1) by the limit of sealed cap (6) spiral shell press fit changes sealing gasket (3), the center that this limit is changeed sealing gasket (3) is equipped with a square through hole (12), and head spool (2) down is being set in this square through hole; Described spool (2) is two square, and its afterbody is a hollow article, and the internal thread by internal diameter is the screw thread turn with the transmission adjustable lever (4) on top and is connected; The top of this transmission adjustable lever (4) is a conisphere shape Ka Kan, its top cone-spheroid and sealed cap form sealing surface, its underpart and limit are changeed between sealing gasket (3) and are provided with a spring (5), its head of described spool (2) be provided with one with the inversed taper platform of throttleng surface break-in sealing.
Being positioned on the body of rod of conisphere shape Ka Kan bottom, transmission adjustable lever (4) top tandem arrangement, a center be square opening, and cylindrical is a screw thread, and the locking sea whelk (10) that can be spirally connected with the activity of sealed cap internal thread.
Be provided with a tension nut (7) that is spirally connected with transmission adjustable lever (4) between described sealed cap (6) and the handwheel (8).
There is not 1-2 throttling groove C from deep to shallow on described spool (2) the head cylindrical body.
Compare with existing valve of the same type according to this full-metallic sealed valve that above design proposal proposes, its advantage is its nonmetal Sealing without any rapid wear, adopt the sealing of full-metallic bedding-in, high temperature resistant, high pressure, corrosion-resistant, safe and reliable, long service life, the adjusting that extensively is adapted to all gases, liquid is used.
Accompanying drawing is the utility model overall structure schematic representation.
Each part member is as follows among the figure:
1. valve body 2. spools 3. limits are changeed sealing gasket 4. transmission adjustable levers 5. springs 6. sealed caps 7. tension nuts 8. handwheels 9. nuts 10. locking sea whelks 11. spring seats 12. square through holes.
Further describe the utility model below in conjunction with accompanying drawing, and provide embodiment:
Described valve is in off position the time, its spool (2) head is crushed in the throttle orifice of valve body, its afterbody is screwed onto on the transmission adjustable lever (4), the head of spool (2) is provided with one by going deep into a shallow throttling groove (C) and a cone (B), and its cone and the set taper hole of valve body throttle orifice oral area bedding-in mutually work seal action when closing.It is two square that the plane that spool (2) afterbody is milled out two flat shapes forms.The afterbody of spool is sleeved on limit to be changeed in the central square through hole (12) of sealing gasket (3), and limit is changeed the sealed cap of sealing gasket (3) (6) spiral shell press fit on valve body (1), maintains static the sealing of playing sealed cap and limiting valve core diameter to rotary action.Transmission adjustable lever (4) is provided with a cone or spheroid (A), and under the effect of spring, its cone cooperates with set taper hole phase grinding on the sealed cap, plays the seal action of transmission adjustable lever (4).
Its working principle is as follows:
Shown in accompanying drawing; When rotating handwheel, driving the transmission adjustable lever rotates, but because fixed limit is changeed the restriction of sealing gasket (3) central square through hole, spool (2) can not be rotated, can only move up and down, so its spool (2) moves up and down along with the rotation of adjustable lever, the open and close of throttle orifice on the valve body have been formed.When handwheel when rotating counterclockwise, rotation by left-handed thread, spool is moved upward, at first be that throttling groove works, the ascending small flow that carries out is regulated, from the throttle orifice of valve body, deviate from last, all open throttle orifice, meanwhile, along with the rotation of handwheel (8) and transmission adjustable lever (4), its locking sea whelk (10) also moves up thereupon, contacts when it moves to the step of square body end on the transmission adjustable lever, move then and can exert pressure on continuing again the transmission adjustable lever---soon the conisphere shape Ka Kan (A) that seals on the transmission adjustable lever (4) locks tightly and is pressed in the taper hole of sealed cap (6), plays seal action.Form valve opening state, fluid enters from import, and the throttle orifice of flowing through flows out from outlet.At this moment, pressure on the transmission adjustable lever (4) increases, particularly when the valve of being adorned after this valve outlet port all is in closed condition, the pressure in this valve turnover chamber equates, and the last suffered pressure of transmission adjustable lever (4) is bigger, the valve of the nonmetallic material Sealing of the former employing of this kind situation is the easiest damage, but the sealing better off of this valve this moment, because it has increased the impacting force to the adjustable lever cone again when being subjected to spring, pressure.When handwheel moves in the direction of the clock, spool moves downward, and when spool head throttling groove enters the valve body throttle orifice, promptly begins to carry out small flow and regulates, descending, close to sealing awl and taper hole pressing at last, finish closing of valve, when the stubborn power of handwheel big more, not only the throttle orifice place to close sealing good more, and the sealing that transmission adjustable lever (4) is located is also good more, so flow backwards this moment exactly, the sealing at adjustable lever place can not leaked yet.According to this advantage, use when high pressure conditions, install by the outlet that the import of this valve can be changed into shown on the accompanying drawing, safer reliable, because losing efficacy, the spring damaged screw can not cause leakage yet, safe and reliable.The set throttling groove of spool (2) head is to be used for the adjusting of small flow from the above as can be known, its objective is to be used for increasing latus rectum, widens the amplitude of accommodation, is that annular space is through-flow because of what formed in the past, and latus rectum is little, and easily stifled and small flow is regulated unstable.
The upper-lower seal of this valve all is to adopt metal cone to grind fitted seal, its advantage is high temperature resistant, high pressure resistant, and pressure is high more, sealing is good more, the restriction to pressure and temp of adopting nonmetallic material Sealings such as rubber, plastics to be brought can not appear, this valve long service life, do not need frequent maintenance, there is not the rapid wear Sealing to change, along with valve closing is regulated increasing of number of times, cone is ground number of times and is just increased, and sealing is also just better, former rubber, plastic seal have thoroughly been overcome because of easily aged deterioration damage easily, the shortcoming that service time is long.
For the valve that adjustable lever and sealed cap (or valve body) relatively move as screw thread, this moment, set cone (or spheroid) was pressed in the taper hole of sealed cap on the bar, plays seal action by moving up.Play a protective role to being in its outer nonmetal sealing like this, particularly, play the effect that increases the service life for those Sealings at the opening state pressurized.Simultaneously also can when valve opening is worked, carry out the nonmetal Sealing of maintain and replace, also not influence proper functioning, so far form opening state.Even so flow backwards, the adjustable lever sealing can not leaked yet.Opening entirely or all can be during contract fully according to the above adjustable lever seal cones pressurization enhanced leaktightness.And when not needing all to open or carrying out Flow-rate adjustment, then be by tension nut (7) it to be strained enhanced leaktightness.At this moment, when adjustable lever is transferred spool to certain flow, draw cap (7) promptly can up draw adjustable lever as long as clockwise rotate, make cone force to be adjacent to the taper hole enhanced leaktightness, so no matter when do not have the leakage of adjustable lever, according to this advantage, to use when high pressure conditions, its sealability also can keep the optimum state.
In a word, this full-metallic sealed valve, has high temperature resistant, high pressure, long service life, safe and reliable, do not need frequent maintenance, adaptability is strong, be widely used on the special pipeline of various high-temperature gases, liquid and various corrosivity gas, liquid and the common pipe of various normal temperature gas, liquid on use, be a kind of desirable gas-liquid valve.
Claims (4)
1, a kind of full-metallic sealed valve, form by valve body (1), spool (2), sealed cap (6), handwheel (8) and transmission adjustable lever (4) and spring seat (11), it is characterized in that: being provided with in the vertical main chamber of described valve body (1) by the limit of sealed cap spiral shell press fit changes sealing gasket (3), the center that this limit is changeed sealing gasket (3) is equipped with a square through hole (11), and head spool (2) down is being set in this square through hole; Described spool (2) is two square, and its afterbody is a hollow article, and the internal thread by internal diameter is the screw thread turn with the transmission adjustable lever (4) on top and is connected; The top of this transmission adjustable lever (4) is a conisphere shape Ka Kan, its top cone-spheroid and sealed cap form sealing surface, its underpart and limit are changeed between sealing gasket (3) and are provided with a spring (5), its head of described spool (2) be provided with one with the inversed taper platform of throttleng surface break-in sealing.
2, a kind of full-metallic sealed valve according to claim 1, it is characterized in that: being positioned on the body of rod of conisphere shape Ka Kan bottom, transmission adjustable lever (4) top tandem arrangement, a center be square opening, cylindrical is a screw thread, and the locking sea whelk (10) that can be spirally connected with the activity of sealed cap internal thread.
3, a kind of full-metallic sealed valve according to claim 1 is characterized in that being provided with between described sealed cap (6) and the handwheel (8) a tension nut (7) that is spirally connected with transmission adjustable lever (4).
4, a kind of full-metallic sealed valve according to claim 1 is characterized in that described spool (2) head cylindrical body is provided with 1-2 throttling groove C from deep to shallow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00252000 CN2477900Y (en) | 2000-12-02 | 2000-12-02 | Full metal sealing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00252000 CN2477900Y (en) | 2000-12-02 | 2000-12-02 | Full metal sealing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2477900Y true CN2477900Y (en) | 2002-02-20 |
Family
ID=33609755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00252000 Expired - Fee Related CN2477900Y (en) | 2000-12-02 | 2000-12-02 | Full metal sealing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2477900Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470893A (en) * | 2013-09-05 | 2013-12-25 | 张其明 | High temperature connection valve |
| CN103775656A (en) * | 2014-01-21 | 2014-05-07 | 张家港富瑞特种装备股份有限公司 | Low-temperature high-pressure stop valve |
| CN105402418A (en) * | 2014-09-16 | 2016-03-16 | 江苏神通阀门股份有限公司 | Angular regulating valve |
| CN106884996A (en) * | 2015-12-16 | 2017-06-23 | 浙江三花制冷集团有限公司 | Electric expansion valve and its valve element |
| CN113309897A (en) * | 2021-07-29 | 2021-08-27 | 邳州宏盛液压元件有限公司 | Case buffer structure |
-
2000
- 2000-12-02 CN CN 00252000 patent/CN2477900Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470893A (en) * | 2013-09-05 | 2013-12-25 | 张其明 | High temperature connection valve |
| CN103775656A (en) * | 2014-01-21 | 2014-05-07 | 张家港富瑞特种装备股份有限公司 | Low-temperature high-pressure stop valve |
| CN105402418A (en) * | 2014-09-16 | 2016-03-16 | 江苏神通阀门股份有限公司 | Angular regulating valve |
| CN106884996A (en) * | 2015-12-16 | 2017-06-23 | 浙江三花制冷集团有限公司 | Electric expansion valve and its valve element |
| CN106884996B (en) * | 2015-12-16 | 2021-11-19 | 浙江三花制冷集团有限公司 | Electronic expansion valve and valve core thereof |
| CN113309897A (en) * | 2021-07-29 | 2021-08-27 | 邳州宏盛液压元件有限公司 | Case buffer structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |