CN102619995A - Easily-closed stop valve with soft-metal valve clack - Google Patents
Easily-closed stop valve with soft-metal valve clack Download PDFInfo
- Publication number
- CN102619995A CN102619995A CN2012101080428A CN201210108042A CN102619995A CN 102619995 A CN102619995 A CN 102619995A CN 2012101080428 A CN2012101080428 A CN 2012101080428A CN 201210108042 A CN201210108042 A CN 201210108042A CN 102619995 A CN102619995 A CN 102619995A
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- Prior art keywords
- valve
- flap
- soft metal
- thread
- stop valve
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Abstract
The invention provides an easily-closed stop valve with a soft-metal valve clack, which at least comprises a valve body, a valve seat, a valve rod, the valve clack and a handle, wherein the valve rod and the valve clack are separated and are connected through a thread. A surface layer of the valve clack is made of soft metal, and the hardness of the soft metal is smaller than that of materials of the valve seat, the valve rod and the valve body. The whole valve clack is made of soft metal, and the direction of the thread between the valve clack and the valve rod is opposite to the direction of a thread for the stop valve to be opened and closed. The thread for the stop valve to be opened and closed is a right hand thread, and the thread between the valve rod and the valve clack is a left hand thread. Opening and closing effectiveness is improved based on a traditional stop valve, and the easily-closed stop valve is good in sealing effect. Besides, the valve seat cannot be abraded easily, the abraded valve clack can be directly replaced alone, the valve is overhauled easily, the using efficiency of the valve is improved, the service life of the valve is prolonged, and the maintenance cost is reduced.
Description
Technical field
The present invention relates to a kind of stop valve, particularly a kind of soft metal valve flap stop valve of opening in the frequent pipeline easy to wear that is applicable to.
Background technique
At present, the stop valve that generally uses in the industry and in the scientific experiment equipment is the traditional standard stop valve, like J23W, J61Y etc.; In use there is the problem of following two aspects in these stop valves: (1) stop valve is changed difficulty, for the solder type stop valve, will old valve be cut down from pipeline earlier; Then with in the new stop valve welding; Also want butt welded seam to heat-treat at last, need several hours time usually, have a strong impact on and produce or the scientific research process.(2) along with the increase of access times, it is increasing to close the needed strength of stop valve, and the reliability that opens and closes also worse and worse.In the high occasion of those required precisions,, will have serious consequences to production or scientific research if stop valve can not effectively end.Though the design of some stop valve can be changed valve seat and flap at present; The problems referred to above have been alleviated to a certain extent; But because its flap uses identical hard metal material with valve body, therefore flap and valve body all can suffer the almost wearing and tearing of equal extent in long-term opening-closing process; And when the surface of contact of valve body and flap is worn and torn, the valve body of just having to change.
Summary of the invention
The invention provides a kind of soft metal valve flap stop valve that is prone to close, this stop valve has not only solved the deficiency in the background technique, and has improved the validity that stop valve opens and closes.
Realize that the technological scheme that above-mentioned purpose of the present invention adopted is:
A kind ofly be prone to close the soft metal valve flap stop valve; At least comprise valve body, valve seat, valve rod, flap and handle; Valve rod and flap are separated type; Through being threaded, the material of the surface layer of flap is the soft metal between the two, and the hardness of described soft metal is less than the hardness of valve seat, valve rod and the used material of valve body.
The whole material of described flap is the soft metal.Described soft metal is brass, red copper, aluminum or aluminum alloy etc.
It is opposite that hand of spiral between flap and the valve rod and stop valve open and close used hand of spiral.It is right-handed thread that stop valve opens and closes used screw thread, and the screw thread between flap and the valve rod is a left-handed thread.
Provided by the inventionly be prone to close the soft metal valve flap stop valve following advantage is arranged: this stop valve has not only improved the validity that traditional stop valve opens and closes; And because flap is the soft metal; Make that not only sealing effect is better; And in long-term use, only can cause wearing and tearing and can cause wearing and tearing to valve body hardly, therefore can avoid changing whole valve body flap; Flap and valve rod are separated type simultaneously, use reverse thread to connect between the two, therefore when guaranteeing that keying is respond well; Can directly change separately for the flap after the wearing and tearing; Make the maintenance of valve easier, improved the utilization efficiency and the working life of valve, reduced maintenance cost.
Description of drawings
Fig. 1 is the structural representation that is prone to close the soft metal valve flap stop valve provided by the invention;
Fig. 2 is the structural representation of flap and valve rod;
Among the figure: 1-valve body, 2-fastening piece, 3-valve seat, 4-flap, 5-valve rod, 6-pressure ring, 7-valve gap, 8-handle.
Embodiment
The structure that is prone to close the soft metal valve flap stop valve provided by the invention is as shown in Figure 1, and the top of valve rod 5 is connected with handle 8, and the bottom of valve rod 5 is connected with flap 4 through reverse thread, and flap 4 is positioned at valve body 1, and is positioned at the top of valve seat 3.The both sides of valve body 1 are installed on the pipeline through fastening piece 2, and valve gap 7 is fixed in the top of valve body 1, are provided with pressure ring 6, seal ring and filler etc. between valve rod 5 and the valve body 1, to realize the sealing of valve body 1.Valve rod 5 is provided with screw thread, and valve rod 5 is provided with right-handed thread in the present embodiment, through rotatable handle 8; Valve rod 5 rotates thereupon; Valve rod 5 goes up and down in valve body 1 under threaded function, and flap 4 also goes up and down in valve body 1 along with valve rod 5, thereby realizes closure and unlatching between flap 4 and the valve seat 3.The structure of flap 4 and valve rod 5 is as shown in Figure 2, and the top of flap 4 is a link, and link is provided with screw thread, and flap 4 is installed on the bottom of valve rod 5 through link.The hand of spiral that screw thread that link is provided with and valve rod 5 are provided with is opposite, is left-handed thread.The material of the surface layer of flap 4 is the soft metal, and the hardness of this soft metal is less than the hardness of valve seat, valve rod and the used material of valve body.In the present embodiment, the whole material of flap 4 is the soft metal, and this soft metal is brass, red copper, aluminum or aluminum alloy etc., selects brass herein for use.
Stop valve is in long-term use; Flap and valve seat frequently carry out rubbing contact; In the present invention because the integral body of flap adopts the soft metal to process, and the hardness of this soft metal is less than the hardness of valve seat, and what therefore produce wearing and tearing mainly is flap; Valve seat can produce wearing and tearing hardly, thereby can avoid changing whole valve seat.Simultaneously again because flap is the soft metal, so this stop valve is when closing, and its sealability is better.
Claims (5)
1. one kind is prone to close the soft metal valve flap stop valve; At least comprise valve body, valve seat, valve rod, flap and handle; It is characterized in that: valve rod and flap are separated type; Through being threaded, the material of the surface layer of flap is the soft metal between the two, and the hardness of described soft metal is less than the hardness of valve seat, valve rod and the used material of valve body.
2. according to claim 1ly be prone to close the soft metal valve flap stop valve, it is characterized in that: the whole material of described flap is the soft metal.
3. according to claim 1 and 2ly be prone to close the soft metal valve flap stop valve, it is characterized in that: described soft metal is brass, red copper, aluminum or aluminum alloy etc.
4. according to claim 1ly be prone to close the soft metal valve flap stop valve, it is characterized in that: it is opposite that hand of spiral between flap and the valve rod and stop valve open and close used hand of spiral.
5. according to claim 4ly be prone to close the soft metal valve flap stop valve, it is characterized in that: it is right-handed thread that stop valve opens and closes used screw thread, and the screw thread between flap and the valve rod is a left-handed thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101080428A CN102619995A (en) | 2012-04-13 | 2012-04-13 | Easily-closed stop valve with soft-metal valve clack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101080428A CN102619995A (en) | 2012-04-13 | 2012-04-13 | Easily-closed stop valve with soft-metal valve clack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102619995A true CN102619995A (en) | 2012-08-01 |
Family
ID=46560114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101080428A Pending CN102619995A (en) | 2012-04-13 | 2012-04-13 | Easily-closed stop valve with soft-metal valve clack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102619995A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3262673A (en) * | 1964-03-24 | 1966-07-26 | Joseph Dixon Crucible Co | Stopper rod assembly |
| CN88203056U (en) * | 1988-02-29 | 1988-10-19 | 刘广兴 | Opposite-clamp type cut-off valve |
| CN2202230Y (en) * | 1994-09-26 | 1995-06-28 | 湖南省机械研究所 | Two-way flow ceramic water tap |
| CN201043453Y (en) * | 2007-06-15 | 2008-04-02 | 上海神开石油化工装备股份有限公司 | Backpressure valve |
-
2012
- 2012-04-13 CN CN2012101080428A patent/CN102619995A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3262673A (en) * | 1964-03-24 | 1966-07-26 | Joseph Dixon Crucible Co | Stopper rod assembly |
| CN88203056U (en) * | 1988-02-29 | 1988-10-19 | 刘广兴 | Opposite-clamp type cut-off valve |
| CN2202230Y (en) * | 1994-09-26 | 1995-06-28 | 湖南省机械研究所 | Two-way flow ceramic water tap |
| CN201043453Y (en) * | 2007-06-15 | 2008-04-02 | 上海神开石油化工装备股份有限公司 | Backpressure valve |
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120801 |