CN202674367U - Valve seat for spring protection ball valve - Google Patents
Valve seat for spring protection ball valve Download PDFInfo
- Publication number
- CN202674367U CN202674367U CN 201220352222 CN201220352222U CN202674367U CN 202674367 U CN202674367 U CN 202674367U CN 201220352222 CN201220352222 CN 201220352222 CN 201220352222 U CN201220352222 U CN 201220352222U CN 202674367 U CN202674367 U CN 202674367U
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- China
- Prior art keywords
- valve seat
- valve
- seat body
- groove
- ball
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- Expired - Fee Related
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Abstract
The utility model discloses a valve seat for a spring protection ball valve. The valve seat comprises a valve seat body. One surface of the valve seat body is attached to a ball body to form a sealing surface, and the other surface of the valve seat body forms seal with a valve body. An adjusting spring is arranged between the valve seat body and the valve body, and is arranged in a groove of the valve seat body. The two ends of the adjusting spring are pressed against the valve seat body and the valve body respectively. The valve seat is characterized in that one side, which is close to a fluid medium, of the valve seat body extends towards the valve body to form a step; the valve body extends towards the valve seat body to form a platform above the step; and an O-shaped sealing ring is arranged on the extended platform of the valve seat body. By the O-shaped sealing ring of the valve seat, the medium can be prevented from entering the working area of the adjusting spring, and the corrosion of the medium to the adjusting spring is isolated. The adjusting spring is arranged in the groove of the valve seat, is communicated with a lubricating grease storage cavity, and is impregnated in and protected by lubricating grease, so that the service life of the adjusting spring is prolonged. The lubricating grease is injected into the lubricating grease storage cavity through a valve body grease injection hole, flows through a valve seat grease injection groove and a pressure reducing groove, and reaches a lubricating groove to lubricate the ball body, so that an opening and closing friction coefficient is decreased, and the service life of each of the sealing surface and the ball body is prolonged.
Description
Technical field
The utility model relates to a kind of valve seat of valve, especially relates to a kind of valve seat that is applied on the ball valve.
Background technique
Ball valve is mainly used in the every field such as oil, chemical industry, iron and steel, metallurgy and electric power, and with respect to the valve of other control valve track media circulations, ball valve has the advantages such as resistance of medium is little, easy to operate.The basic structure of existing ball valve is that valve body places the spheroid between the valve seat, and the valve seat that arranges between valve body and spheroid, under the state of valve closing, forms sealing surface between valve seat and the ball valve, to guarantee the seal of valve.And between valve seat and valve body, being provided with Regulation spring, its effect mainly is for the relative movement between regulating valve seat and the spheroid, to guarantee the normal switch of valve.
The protection problem of Regulation spring is seldom considered in traditional valve seat construction design, and Regulation spring is subject to the corrosion of medium.Rubber seal ring, spheroid lack lubricated the keying and wear and tear greatly.Its valve seat shortening in working life.
The model utility content
In order to overcome the deficiencies in the prior art, the purpose of this utility model be to provide a kind of simple in structure, cost of production is low and can prolong Regulation spring, rubber seal ring, the spheroid ball seat in working life.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the utility model is achieved through the following technical solutions:
A kind of spring protection ball seat comprises the valve seat body, and its one side is fitted with spheroid and formed sealing surface, and another side and valve body form sealing.Be provided with Regulation spring between valve seat body and valve body, Regulation spring is arranged in the groove of valve seat body, and its two ends prop up respectively valve seat body and valve body.It is characterized in that: described valve seat body is stretched near flowing medium one side direction valve body and is formed a step, extends to form a platform by valve body to the valve seat body above step.
Further, described valve seat body extendable platform arranges O type seal ring.
Described O type seal ring is arranged in the extendable platform groove of valve seat, and two ends contact respectively valve seat body and valve body.
Further, described valve seat body one end contacts with described spheroid, and contact jaw is provided with rubber seal ring and plug-in unit.
Described plug-in unit one end is embedded in the valve seat cavity, and the other end arranges lubrication groove.
Described lubrication groove contacts with spheroid, and is corresponding with the spheroid surface of contact.
Described rubber seal ring one end is embedded in the described valve seat body, and an end contacts with described spheroid.
Preferably, described rubber seal ring is fluorine rubber.
Preferably, described plug-in unit is teflon.
The beneficial effects of the utility model are: the utility model structure is very simple, has saved cost of production, has improved working efficiency, utilizes valve seat O type seal ring, prevents that medium from entering the Regulation spring working zone, and isolated medium is to the corrosion of Regulation spring.The groove that Regulation spring is arranged on valve seat is communicated with lubricating grease storage chamber, and the Regulation spring profit is in consistent lubricant and soaks protection, has more prolonged the working life of Regulation spring.It is lubricated to spheroid that lubricating grease injects flow through valve seat greasing groove, decompressing groove, arrival lubrication groove of lubricating grease storage chamber by valve body greasing hole, reduces opening and closing friction factor.Prolonged the working life of transferring sealing surface and spheroid.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of specification, below with preferred embodiment of the present utility model and cooperate accompanying drawing to be described in detail as follows.Embodiment of the present utility model is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Fig. 1 the utility model annexation schematic diagram.
Fig. 2 is that valve seat cooperates the section partial schematic diagram with valve body.
Number in the figure explanation: 1, spheroid, 2, valve body, 2a, valve body greasing hole, 3, valve seat body, 3a, plug-in unit, 3a1, lubrication groove, 3a2, decompressing groove, 3b, rubber seal ring, 3c, spheroid surface of contact, 3d, valve seat greasing hole, 3f, O type seal ring, 4, Regulation spring, 5, platform, 6, step, 7, lubricating grease storage chamber.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the utility model in detail.
With reference to Fig. 1, shown in Figure 2,
A kind of spring protection ball seat comprises valve seat body 3, and its one side is fitted with spheroid 1 and formed sealing surface, and another side and valve body 2 form sealing.Be provided with Regulation spring 4 between valve seat body 3 and valve body 2, Regulation spring 4 is arranged in the groove of valve seat body 3, and its two ends prop up respectively valve seat body 3 and valve body 2.It is characterized in that: described valve seat body 3 extends to form a step 6 to valve body 2, extends to form a platform 5 by valve body 2 to valve seat body 3 above step 6.
Described valve seat body 3 extends step 6 O type seal ring 3f is set.
Described O type seal ring 3f is arranged in extension step 6 grooves of valve seat 3, and two ends contact respectively valve seat body 3 and valve body 2.
Further, described valve seat body 3 one ends contact with described spheroid 1, and contact jaw is provided with rubber seal ring 3b and plug-in unit 3a.
Described plug-in unit 3a one end is embedded in valve seat 3 cavitys, and the other end arranges lubrication groove 3a1.
Described lubrication groove 3a1 contacts with spheroid 1, and 3c is corresponding with the spheroid surface of contact.
Described rubber seal ring 3d one end is embedded in the described valve seat body 3, and an end contacts with described spheroid 1.
Described plug-in unit 3a is teflon.
In valve working, flowing medium through out-of-date, arranges O type seal ring 3f because valve seat body 3 extends step 6 at the valve through hole.Utilize valve seat O type seal ring 3f to prevent that medium from entering Regulation spring 4 working zones, isolated medium is to the corrosion of Regulation spring 4.The groove that Regulation spring 4 is arranged on valve seat body 3 steps 6 is communicated with lubricating grease storage chamber 7, and Regulation spring 4 profits are in consistent lubricant and soak protection, have more prolonged the working life of Regulation spring 4.In use opening and closing also is greasing: line pressure changes during keying, and Regulation spring 4 flexible work make lubricating grease storage chamber 7 stereomutations produce extruding force.Extruding force makes lubricating grease store 7 interior lubricating grease and by valve seat greasing groove 3d decompressing groove 3a 2 arrival lubrication groove 3a1 spheroid 1 is lubricated, and has reduced the wearing and tearing of spheroid 1 with plug-in unit 3a and rubber ring seal ring 3b surface of contact.Prolonged the working life of close rubber ring seal ring 3b, plug-in unit 3a and spheroid 1.
Seal ring seal lost efficacy: inject emergency sealing fat by valve body greasing hole 2a and enter lubrication groove 3a1, contact the prevention dielectric leakage with spheroid 1 to lubricating grease storage chamber 7, flow through valve seat greasing hole 3d, decompressing groove 3a2, finish seal operation.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (7)
1. spring protection ball seat; comprise valve seat body (3); its one side is fitted with spheroid (1) and is formed sealing surface; another side and valve body (2) form sealing; between valve seat body (3) and valve body (2), be provided with Regulation spring (4); Regulation spring (4) is arranged in the groove of valve seat body (3); its two ends prop up respectively valve seat body (3) and valve body (2); it is characterized in that: described valve seat body (3) extends to form a step (6) near flowing medium one side direction valve body (2), extends to form a platform (5) by valve body (2) to valve seat body (3) in step (6) top.
2. ball seat according to claim 1 is characterized in that: further, described valve seat body (3) extendable platform (5) arranges O type seal ring (3f).
3. ball seat according to claim 2, it is characterized in that: described 0 type seal ring (3f) is arranged in extendable platform (5) groove of valve seat, and two ends contact respectively valve seat body (3) and valve body (2).
4. ball seat according to claim 1 is characterized in that: further, described valve seat body (3) one ends contact with described spheroid (1), and contact jaw is provided with rubber seal ring (3b) and plug-in unit (3a).
5. ball seat according to claim 4, it is characterized in that: described plug-in unit (3a) end is embedded in the valve seat cavity, and the other end is provided with lubrication groove.
6. ball seat according to claim 5, it is characterized in that: described lubrication groove contacts with spheroid (1), and (3c) is corresponding with the spheroid surface of contact.
7. ball seat according to claim 4, it is characterized in that: described plug-in unit (3a) is teflon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220352222 CN202674367U (en) | 2012-07-20 | 2012-07-20 | Valve seat for spring protection ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220352222 CN202674367U (en) | 2012-07-20 | 2012-07-20 | Valve seat for spring protection ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202674367U true CN202674367U (en) | 2013-01-16 |
Family
ID=47495273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220352222 Expired - Fee Related CN202674367U (en) | 2012-07-20 | 2012-07-20 | Valve seat for spring protection ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202674367U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486289A (en) * | 2013-10-12 | 2014-01-01 | 南京肯特复合材料有限公司 | Ball valve seat |
-
2012
- 2012-07-20 CN CN 201220352222 patent/CN202674367U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486289A (en) * | 2013-10-12 | 2014-01-01 | 南京肯特复合材料有限公司 | Ball valve seat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20140720 |
|
| EXPY | Termination of patent right or utility model |