CN203463707U - Ball valve with adjustable pre-tightening force - Google Patents
Ball valve with adjustable pre-tightening force Download PDFInfo
- Publication number
- CN203463707U CN203463707U CN201320519763.8U CN201320519763U CN203463707U CN 203463707 U CN203463707 U CN 203463707U CN 201320519763 U CN201320519763 U CN 201320519763U CN 203463707 U CN203463707 U CN 203463707U
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- CN
- China
- Prior art keywords
- ball valve
- valve
- seat
- pretightening force
- adjustable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a ball valve with an adjustable pre-tightening force, and particularly provides a ball valve which can realize the adjustable control of the pre-tightening force, alleviate the assembling difficulty and improve the sealing performance. The technical scheme is as follows: the ball valve with the adjustable pre-tightening force comprises a valve body, a valve rod, a ball valve core which is arranged in the valve body, a pair of valve seats corresponding to the ball valve core and a worm drive mechanism for controlling the ball valve core, wherein the worm drive mechanism is connected with the ball valve core through the valve rod, two sides of the valve body are respectively provided with a valve cover, and the ball valve is characterized in that each valve seat comprises a fixed seat, a resilient piece and an adjusting mechanism, the fixed seat is arranged on the outer wall of the valve seat, the resilient piece is arranged between the outer wall of the valve seat and the fixed seat, and the adjusting mechanism is used for controlling the resilient piece. By adopting the ball valve, the pre-tightening force of the resilient piece on the ball valve core is adjusted by controlling the compression of the resilient piece through the adjusting mechanism, so that the assembling difficulty of the ball valve is alleviated, and the sealing performance of the ball valve is improved.
Description
Technical field
The utility model relates to ball valve technical field, more particularly: it relates to the adjustable ball valve of a kind of pretightening force.
Background technique
Ball valve is simple in structure, good seal performance not only, and certain inside nominal diameter scope inner volume compared with little, lightweight, material consumption is few, installation dimension is little, and driving moment is little, easy and simple to handle, easily realize fast opening and closing, be in recent ten years one of valve kind with fastest developing speed.Ball valve is developed by stopcock, and its open-shut device, as a spheroid, utilizes spheroid around the axis half-twist of valve rod, to realize the object of opening and closing.Ball valve is mainly used in cutting off, distributes and changes media flow direction on pipeline.
At present, the problem that exists pretightening force not adjust and to control of most of ball valves, separates between valve seat and Compress Spring and does not combine, when the assembling, the needed power of the large assembling of elastic component decrement is large, assembles difficulty and tends to because the problem of assembling causes the problem of sealing.
Model utility content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of pretightening force adjustment control that realizes, and reduces the difficulty of assembling, improves the ball valve of sealability.
For achieving the above object, the utility model provides following technological scheme: the ball valve that a kind of pretightening force is adjustable, comprise valve body, valve rod, be located at the ball valve core in described valve body, relatively described ball valve core setting a pair of valve seat, control the worm gear drive mechanism of described ball valve core, described worm gear drive mechanism is connected with described ball valve core by valve rod, described valve body both sides are equipped with valve gap, and described valve seat comprises and is located at the regulating mechanism that valve seat outer wall is provided with fixed base, is located at elastic component between valve seat outer wall and described fixed base and controls elastic component.
By adopting technique scheme, by increase, fixed base and regulating mechanism being set changes original valve seat and separates the situation that cannot regulate and control pretightening force with elastic component, elastic component and fixed base are combined and packed in valve body, regulate regulating mechanism to reduce pretightening force regulated regulating mechanism minimizing pretightening force elastic component compressed before ball valve core is installed, ball valve core is installed so just very convenient, reduced the difficulty of ball valve assembling, after ball valve core assembling, need again to ball valve core, increase pretightening force regulates regulating mechanism to realize the sealing that pretension of ball valve core has been improved to ball valve equally.
This practicality is further set to: described elastic component is Compress Spring, and described regulating mechanism is adjusting nut, and described adjusting nut can be controlled described Compress Spring compression degree.
By adopting technique scheme, Compress Spring and adjusting nut effectively guarantee above-mentioned regulating mechanism to the adjustment of pretightening force and control and implement, when adjusting nut withstands Compress Spring, reduce pretightening force, when adjusting nut is withdrawn from, Compress Spring reset has increased to ball valve core pretightening force so.
This practicality is further set to: described valve seat also includes sealing surface of seat, and described sealing surface of seat is also provided with seal ring.
By employing technique scheme, sealing surface of seat and the often contact friction of ball valve core surface, arranging when guaranteeing sealing of seal ring avoids sealing surface of seat to be caused the problems such as leakage by concentrated wear or impact generation defect.
This practicality is further set to again: described valve base surface is coated with officials Tai Li hard alloy layer.
By adopting technique scheme, stellite is to using cobalt as main component, contain the alloying elements such as a considerable amount of nickel, chromium, tungsten and a small amount of molybdenum, niobium, tantalum, titanium, lanthanum, a class alloy that yet contains once in a while iron, it is the cemented carbide of a kind of ability all kinds abrasion and corrosion and high temperature oxidation, can effectively prevent valve seat because of wearing and tearing or impact to produce defect, the working life of improving ball valve.
Accompanying drawing explanation
Fig. 1 is the adjustable ball valve embodiment's of a kind of pretightening force of the utility model structural representation.
Fig. 2 is the structural representation of the utility model valve seat.
1-valve body in figure, 2-valve rod, 3-ball valve core, 4-valve seat, 5-worm gear drive mechanism, 6-valve gap, 7-regulating mechanism, 8-elastic component, 9-fixed base, 10-sealing surface of seat, 11-seal ring.
Embodiment
Referring to figs. 1 through Fig. 2, the embodiment of the adjustable ball valve of a kind of pretightening force of the utility model is described further.
The ball valve that a kind of pretightening force is adjustable, the a pair of valve seat 4 that comprise valve body 1, valve rod 2, be located at the ball valve core 3 in described valve body 1, relatively described ball valve core 3 arranges, the worm gear drive mechanism 5 of controlling described ball valve core 3, described worm gear drive mechanism 5 is connected with described ball valve core 3 by valve rod 2, described valve body 1 both sides are equipped with valve gap 6, and described valve seat 4 comprises and is located at the regulating mechanism 7 that valve seat 4 outer walls are provided with fixed base 9, are located at elastic component 8 between valve seat 4 outer walls and described fixed base 9 and control elastic component 8.
By increase, fixed base 9 is set and separates the situation that cannot regulate and control pretightening force with the original valve seat 4 of regulating mechanism 7 change with elastic component 8, elastic component 8 and fixed base 9 are combined and packed in valve body 1, regulate regulating mechanism 7 to reduce pretightening force regulated regulating mechanism 7 minimizing pretightening force elastic components 8 compressed before ball valve core 3 is installed, ball valve core 3 is installed so just very convenient, reduced the difficulty of ball valve assembling, after ball valve core 3 assemblings, need again to ball valve core 3, increase pretightening force regulates regulating mechanism 7 to realize the sealing that 3 one pretensions of ball valve core has been improved to ball valve equally.
Described elastic component 8 is Compress Spring, and described regulating mechanism 7 is adjusting nut, and described adjusting nut can be controlled described Compress Spring compression degree.
Compress Spring and adjusting nut effectively guarantee the adjustment of 7 pairs of pretightening forces of above-mentioned regulating mechanism and control and implement, and reduce pretightening force when adjusting nut withstands Compress Spring, and when adjusting nut is withdrawn from, Compress Spring reset has increased to ball valve core pretightening force so.
Described valve seat 4 also includes sealing surface of seat 10, and described sealing surface of seat 10 is also provided with seal ring 11.
Sealing surface of seat 10 and ball valve core 3 often contact frictions of surface, arranging when guaranteeing sealing of seal ring 10 avoids sealing surface of seat 10 to be caused the problems such as leakage by concentrated wear or impact generation defect.
Described valve seat 4 surfaces are coated with officials Tai Li hard alloy layer.
Stellite is to using cobalt as main component, contain the alloying elements such as a considerable amount of nickel, chromium, tungsten and a small amount of molybdenum, niobium, tantalum, titanium, lanthanum, a class alloy that yet contains once in a while iron, it is the cemented carbide of a kind of ability all kinds abrasion and corrosion and high temperature oxidation, can effectively prevent valve seat 4 because of wearing and tearing or impact to produce defect, the working life of improving ball valve.
The adjustable ball valve of a kind of pretightening force above the utility model embodiment being provided is described in detail, and for one of ordinary skill in the art, the thought according to the utility model embodiment, all will change in specific embodiments and applications.In sum; this description should not be construed as restriction of the present utility model; other any any variation and modification of doing according to the constructed thought of the utility model and scope of patent protection or be equal to enforcement, is scope of patent protection of the present utility model and contains.
Claims (4)
1. the ball valve that pretightening force is adjustable, comprise valve body, valve rod, be located at the ball valve core in described valve body, relatively described ball valve core setting a pair of valve seat, control the worm gear drive mechanism of described ball valve core, described worm gear drive mechanism is connected with described ball valve core by valve rod, described valve body both sides are equipped with valve gap, it is characterized in that: described valve seat comprises the fixed base being located on valve seat outer wall, the regulating mechanism that is located at the elastic component between valve seat outer wall and described fixed base and controls elastic component.
2. the adjustable ball valve of a kind of pretightening force according to claim 1, is characterized in that: described elastic component is Compress Spring, and described regulating mechanism is adjusting nut, and described adjusting nut can be controlled described Compress Spring compression degree.
3. the adjustable ball valve of a kind of pretightening force according to claim 2, is characterized in that: described valve seat also includes sealing surface of seat, and described sealing surface of seat is also provided with seal ring.
4. according to the adjustable ball valve of a kind of pretightening force described in claim 1 or 2 or 3, it is characterized in that: described valve base surface is coated with officials Tai Li hard alloy layer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201320519763.8U CN203463707U (en) | 2013-08-23 | 2013-08-23 | Ball valve with adjustable pre-tightening force |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201320519763.8U CN203463707U (en) | 2013-08-23 | 2013-08-23 | Ball valve with adjustable pre-tightening force |
Publications (1)
Publication Number | Publication Date |
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CN203463707U true CN203463707U (en) | 2014-03-05 |
Family
ID=50176074
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201320519763.8U Expired - Fee Related CN203463707U (en) | 2013-08-23 | 2013-08-23 | Ball valve with adjustable pre-tightening force |
Country Status (1)
Country | Link |
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CN (1) | CN203463707U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104405919A (en) * | 2014-11-28 | 2015-03-11 | 苏州市吴中区大陆电子设备厂 | Ball valve regulating device |
CN105240563A (en) * | 2015-11-02 | 2016-01-13 | 苏州市淞舜五金有限公司 | Adjustable sealing valve |
-
2013
- 2013-08-23 CN CN201320519763.8U patent/CN203463707U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104405919A (en) * | 2014-11-28 | 2015-03-11 | 苏州市吴中区大陆电子设备厂 | Ball valve regulating device |
CN105240563A (en) * | 2015-11-02 | 2016-01-13 | 苏州市淞舜五金有限公司 | Adjustable sealing valve |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20140823 |
|
EXPY | Termination of patent right or utility model |