CN201795051U - O-shaped ring sealing valve - Google Patents
O-shaped ring sealing valve Download PDFInfo
- Publication number
- CN201795051U CN201795051U CN2010201868752U CN201020186875U CN201795051U CN 201795051 U CN201795051 U CN 201795051U CN 2010201868752 U CN2010201868752 U CN 2010201868752U CN 201020186875 U CN201020186875 U CN 201020186875U CN 201795051 U CN201795051 U CN 201795051U
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- valve
- valve body
- spool
- type circle
- stem mut
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- Sliding Valves (AREA)
Abstract
The utility model relates to an O-shaped ring sealing valve, and aims to provide a valve with simple structure, reliability in sealing, flexibility in opening/closing and accuracy in flow regulation. The valve adopts the scheme that a valve rod and a valve clack are integrated through a valve core; O-shaped ring grooves are formed in the middle section of the valve core and used for the placement of O-shaped rings, so as to realize the dynamic sealing of the valve core and a valve body; and the valve core is driven by a valve rod nut for linear movement in the valve body, so as to achieve the opening/closing of the valve. The scheme simplifies the structure of the valve, reduces operation torque and the abrasion of a sealing piece, and improves the serviceability and maintenance convenience of the valve. A plastic regulating valve provided by the first embodiment is particularly suitable for methane systems, and a plastic stop valve provided by the second and the third embodiments is particularly suitable for various plastic pipeline systems for industrial and civil use. The working principle of the utility model is not only suitable for plastic valves, but also suitable for the manufacturing of metal valves.
Description
Affiliated technical field:
The present invention relates to a kind of General valve, be particularly useful for Plastic valve.
Background technique:
Possessing sealing, intensive properties, modulability, action, circulation is the basic demand of valve, and sealability is its matter of utmost importance.For regulating the class valve, its adjusting function good and bad significant.
No matter block class or regulate the class valve, valve rod all will be delivered to hoisting capacity on the open-shut device by spiral lifting mode or rotation mode.The wearing and tearing of moving repeatedly to its sealing medium of valve rod are the main causes that causes the valve seal performance failure.For exercise performance and the sealability that guarantees valve, the sealing at valve rod place and drive mechanism are generally all complicated, and the convenience of its maintenance also is affected.At present the production of Plastic valve with use, be not closed completely and the seepage phenomenon more serious, and maintainable relatively poor, influence it and in plastic pipe, use and develop.
Summary of the invention:
The object of the present invention is to provide a kind of simple in structure, sealing is reliable, open and close flexibly, Flow-rate adjustment valve accurately.
The technical problem that solves: simplify the structure of valve, reduce to operate moment of torsion and sealing part abrasion, improve the reliability of valve seal and the convenience of maintenance.
The technical solution used in the present invention:
1. by the design of spool, valve rod, flap are combined;
2. establish annular on the Stem Mut groove is installed, establish steel wire card mounting hole on the valve body, the steel wire card pass mounting hole be stuck in the annular groove and Stem Mut be connected on the valve body (in embodiment two with set screw, in embodiment three, an annular boss is set on the Stem Mut, outside thread is established in the valve body upper end, establish internal thread on the set screw nut, set screw nut is connected Stem Mut on the valve body by being threaded with valve body.)；
3. threaded stem is established in the upper end of spool, constitutes the spiral motion pair with Stem Mut;
4. the spool stage casing is established groove and is laid O type circle, forms motive sealing between spool and valve body;
5. the spool lower end is a flap, on establish groove and lay sealing gasket and constitute sealing surface with valve seat, as when being used for modulating valve, the front end of flap is established taper throttling thimble (as shown in Figure 1 in the Figure of description);
6. knob is connected by corresponding groove with Stem Mut, and knob drives the Stem Mut rotation and drives the spool moving linearly, and then drives flap keying and regulating valve;
7. the lower end of O type circle lower end and valve body respectively is provided with corresponding muscle and groove (is provided with the plane at valve body and spool corresponding site in embodiment two, embodiment three at corresponding site on the spool, form the plane sliding pair), make spool and valve body constitute the plane sliding pair, the constraint spool can only be done the plane and move in valve body.
8. the method that can adopt two O type circles sealings and add oiling agent between two O type circles in the occasion of some specific (special) requirements solves.Concrete grammar is: the range that makes the distance of two O type circles be a bit larger tham valve opening and closing, the O type circle of upper end will can not contact the contacted valve body of working medium all the time and be in lubricating status preferably like this, when the first road O type circle takes place to reveal because of wearing and tearing, the second road O type circle is still intact and valve still can not be revealed, at this moment if the seal ring that in time more renews both can.
9. in embodiment one, valve body is made up of the concentric pipe of two different-diameters, and spool is installed in the upper end of major diameter pipe, and the lower end connects a port of valve, the pipe of minor diameter is a valve seat, its upper-end surface is the sealing surface of valve seat, and the lower end connects another port of valve, when being designed to throughway valve, connect at right angles, shown in Figure 1 as in the Figure of description when being designed to angle valve, is connected to straight-through.
Beneficial effect: O shape rubber seal is widely used in hydraulic pressure and pneumatic element, it is generally acknowledged its working pressure: 0～32MPa, temperature :-35 ℃～+ 200 ℃.Working medium: general mineral substance hydraulic oil, lubricant oil, water and pressurized air.Therefore, the valve Applicable scope of using this invention production is more widely, and its working principle is equally applicable to the manufacturing of various metal valves.
The technical program is simplified valve mechanism, when being particularly useful for making Plastic valve, and the reduction manufacture cost of can when guaranteeing precision, enhancing productivity greatly; The embodiments of the invention Plastic valve is adapted at using under the low-voltage and medium voltage condition; On usability, its sealing reliability, maintainability, keying flexibility, Flow-rate adjustment are that the Plastic valve of existing structure can not be compared.One of embodiments of the invention " plastics modulating valve " are particularly suitable for bionethanation system and use, embodiments of the invention two, embodiment's three " plastic stop valves " are particularly suitable for using in various industry and civilian plastic piping system.
It is pointed out that because the technical program threaded stem diameter is relatively large, even adopt bigger pitch like this, but lead angle still can satisfy the revesal condition of self-locking and make still self-locking of valve, thereby the manipulation of valve can be accomplished more fast with light.
Description of drawings:
The present invention is further described below in conjunction with drawings and Examples.
One of Fig. 1 embodiment " plastics modulating valve " front section view.
One of Fig. 2 embodiment " plastics modulating valve " cross section view.
Two " plastic stop valve " front section view of Fig. 3 embodiment.
Two " plastic stop valve " cross section view of Fig. 4 embodiment.
Three " plastic stop valve " front section view of Fig. 5 embodiment.
Fig. 6 embodiment two, three " plastic stop valve " cross section view of embodiment.
Among the figure: 1. valve body, 2. spool, 3. Stem Mut, 4. knob, 5. sealing gasket, 6.O type circle, 7. steel wire card.(annotate: part 7 embodiment two in be set screw; Embodiment three in be set screw nut).
Embodiment:
Among the figure, knob (4) is connected with Stem Mut (3), Stem Mut (3) by steel wire card (7) (annotate: part 7 embodiment two in be set screw, in embodiment three, be set screw nut) be fixed on the valve body (1), screw thread on the Stem Mut (3) be located at being threaded of spool (2) upper end, the stage casing of spool (2) is provided with groove and O type circle (6) is installed, and the front end of spool (2) is installed sealing gasket (5).
Among the figure, knob (4) is connected by mutual corresponding groove with Stem Mut (3);
Among Fig. 1, Fig. 3, Stem Mut is provided with annular mounting groove on (3), valve body is established mounting hole on (1), steel wire card (7) (annotate: part 7 embodiment two in be set screw, Fig. 4 is embodiment's two cross section view) pass in the mounting groove that mounting hole on the valve body is stuck in Stem Mut Stem Mut is connected on the valve body, the constraint Stem Mut rotates in valve body;
Among Fig. 5, outside thread is established in valve body (1) upper end, and set screw nut (7) is established internal thread, Stem Mut (a 3) boss of limiting, and set screw nut is threaded with valve body, and Stem Mut is connected on the valve body, retrains Stem Mut and rotates in valve body;
Among the figure, the upper end of spool (2) is established screw thread and Stem Mut (3) and is formed the spiral motion pair, when Stem Mut during by knob (4) driven rotary, orders about spool and does straight line motion, realizes the adjusting and the keying of valve;
Among Fig. 2, be provided with the muscle of two projectioies in the lower end of valve body (1), the lower end corresponding position of spool (2) is provided with two grooves, and muscle and groove constitute the plane sliding pair, and the constraint spool is done straight line motion in valve body.
Among Fig. 6, establish two relative planes on the cylndrical surface, lower end of valve body (1), cut into two planes at the lower end corresponding site of spool (2), the plane on spool and the valve body constitutes the plane sliding pair, and the constraint spool is done straight line motion in valve body.
Among the figure, the stage casing of spool (2) is provided with groove O type circle (6) is installed, and is used for realizing the motive sealing between spool (2) and the valve body (1); The lower end of spool (2) is established mounting groove sealing gasket (5) is installed, and when spool moved downward, sealing gasket was pressed on the sealing surface of valve seat, and valve is ended;
Among Fig. 1, the front end of spool (2) is provided with taper throttling thimble, and during valve opening, taper throttling thimble is realized the throttling pressure regulation by withdrawing from the valve seat and forming the annular fluid passage of continuous increase with valve seat.
Embodiment's two and embodiment's three is applicable to bigger valve, and use set screw (7) or set screw nut (7) to fix Stem Mut because the diameter of valve and wall thickness increase this moment, and be convenient reliable when making installation and maintenance like this.
Claims (10)
1. O type circle sealed valve, in valve body, spool, O type circle, sealing gasket, Stem Mut are installed, are it is characterized in that: pass through spool, valve rod, flap are combined, threaded stem is established in the upper end of spool, O type circle groove is established in the spool stage casing, lays O type circle in the groove, realizes the motive sealing between spool and the valve body.
2. a kind of O type circle sealed valve according to claim 1 is characterized in that: annular is set on Stem Mut groove is installed, establish steel wire card mounting hole on valve body, the steel wire card passes mounting hole and is stuck in the annular groove Stem Mut is connected on the valve body.
3. a kind of O type circle sealed valve according to claim 1 is characterized in that: an annular groove is set on Stem Mut, establishes the set screw mounting hole on valve body, set screw passes mounting hole and is stuck in and Stem Mut is connected on the valve body in the annular groove.
4. a kind of O type circle sealed valve according to claim 1, it is characterized in that: an annular boss is set on Stem Mut, outside thread is established in the valve body upper end, and set screw nut is established internal thread, and set screw nut is connected Stem Mut on the valve body by being threaded with valve body.
5. a kind of O type circle sealed valve according to claim 1 is characterized in that: the Stem Mut upper end is connected by corresponding groove with knob, and knob drives the Stem Mut rotation and drives the spool moving linearly, and then the drive flap opens and closes and regulating valve.
6. a kind of O type circle sealed valve according to claim 1, it is characterized in that: valve body is made up of the concentric pipe of two different-diameters of size, spool is installed in the upper end of heavy caliber pipe, the lower end is a port of valve, the minor diameter pipe is a valve seat, and its upper end is the sealing surface of valve seat, and the lower end is another port of valve, when being designed to throughway valve, port is rectangular.
7. a kind of O type circle sealed valve according to claim 1, it is characterized in that: be provided with the muscle of two projectioies in the lower end of valve body, the lower end corresponding position of spool is provided with two grooves, and muscle and groove constitute the plane sliding pair.
8. a kind of O type circle sealed valve according to claim 1 is characterized in that: establish two relative planes on the cylndrical surface, lower end of valve body, cut into two planes at the lower end of spool corresponding site, the plane of spool and valve body constitutes the plane sliding pair.
9. a kind of O type circle sealed valve according to claim 1 is characterized in that: consider to adopt two O type circles sealings also between two O type circles, to add oiling agent, and the range that makes the distance of two O type circles be a bit larger tham valve opening and closing.
10. a kind of O type circle sealed valve according to claim 1, it is characterized in that: the lower end of spool is a flap, establish groove and be used to install sealing gasket on flap, as when being used for modulating valve, the front end of flap is established the throttling thimble.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201868752U CN201795051U (en) | 2010-05-12 | 2010-05-12 | O-shaped ring sealing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201868752U CN201795051U (en) | 2010-05-12 | 2010-05-12 | O-shaped ring sealing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201795051U true CN201795051U (en) | 2011-04-13 |
Family
ID=43849959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201868752U Expired - Fee Related CN201795051U (en) | 2010-05-12 | 2010-05-12 | O-shaped ring sealing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201795051U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727024A (en) * | 2013-12-16 | 2014-04-16 | 大连液压件有限公司 | Stopper of booster pump oil opening |
| CN113775780A (en) * | 2020-05-21 | 2021-12-10 | 苏州三星电子有限公司 | Equipment, stop valve and disassembly-free sealing assembly |
-
2010
- 2010-05-12 CN CN2010201868752U patent/CN201795051U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727024A (en) * | 2013-12-16 | 2014-04-16 | 大连液压件有限公司 | Stopper of booster pump oil opening |
| CN113775780A (en) * | 2020-05-21 | 2021-12-10 | 苏州三星电子有限公司 | Equipment, stop valve and disassembly-free sealing assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110413 Termination date: 20140512 |