CN201412552Y - Novel durable ball valve - Google Patents
Novel durable ball valve Download PDFInfo
- Publication number
- CN201412552Y CN201412552Y CN2009201260551U CN200920126055U CN201412552Y CN 201412552 Y CN201412552 Y CN 201412552Y CN 2009201260551 U CN2009201260551 U CN 2009201260551U CN 200920126055 U CN200920126055 U CN 200920126055U CN 201412552 Y CN201412552 Y CN 201412552Y
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- CN
- China
- Prior art keywords
- valve
- valve rod
- rod
- described valve
- ball valve
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- Expired - Fee Related
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Abstract
The utility model discloses a novel durable ball valve, which comprises a valve body, a valve rod and a valve core, wherein the valve ports of the valve rod and the valve body are connected and can rotate in the valve ports, the upper end of the valve rod extends outside the valve body, the lower end of the valve rod is provided with at least two pin columns, fixed holes whose dimensions are matched with the dimensions of the pin columns and whose number is same with that of the fixed holes are arranged on the valve core, the valve rod and the valve core are fixedly connected through the inserting matching between the pin columns and the fixed holes. The novel durable ball valve effectively prevents the phenomenon that a traditional square connecting rod skids owing to long time abrasion,since the ball valve is fixed through a plurality of points, compared with the traditional single-point fixation, the fixation effect is good, materials can be saved, the manufacturing cost is low, the use is convenient, the service life is greatly prolonged, and the ball valve is suitable for being popularized and used.
Description
Technical field
The utility model relates to a kind of novel durable ball valve.
Background technique
Ball valve is mainly used to make cut-out, distributes and change medium in pipeline flow direction.Ball valve is a kind of novel valve that is widely adopted in recent years, and it has the following advantages: (1) fluid resistance is little, and its resistance coefficient equates with pipeline section with length; (2) simple in structure, volume is little, in light weight; (3) closely reliable, the seal face materials of ball valve is extensive use of plastics, good airproof performance at present, and is also widely-used in vacuum system; (4) easy to operate, open and close rapidly, from the standard-sized sheet to the complete shut-down, need only half-twist, be convenient to remote control; (5) easy to maintenance, ball-valve structure is simple, and seal ring generally all is movable, and dismounting and change is all more convenient; (6) when standard-sized sheet or full cut-off, the sealing surface of spheroid and valve seat and media isolated when medium passes through, can not cause the erosion of valve sealing face; (7) applied widely, latus rectum arrives several meters greatly from little to several millimeter, all can use from high vacuum to high pressure.
Ball valve has been widely used in all departments such as oil, chemical industry, generating, papermaking, atomic power, aviation, rocket, and in people's daily life.
Existing ball valve mainly is made up of valve body, valve rod, spool and handle etc., and spool is positioned at valve body, and valve rod passes valve body, and its inner inserts in the groove on the spool, and valve rod is connected with spool, and valve rod drives valve core rotation, thereby realizes the switch of spool.
But between the valve rod and spool of existing ball valve, mostly the square connecting rod by being arranged on stem bottom cooperates realization to be connected with fixed hole on the spool, this kind mode As time goes on, because the friction between connecting rod and the fixed hole, skidding takes place easily, make sealability variation, operation painstakingly, thereby shorten the working life of ball valve.
The model utility content
In view of this, the purpose of this utility model provides a kind of compact structure, is fixed well the novel durable ball valve that the life-span is long between spool and the valve rod.
Novel durable ball valve of the present utility model, comprise valve body, valve rod and spool, described valve body is provided with valve port, described valve rod is arranged in the valve port in rotating mode, valve rod is outside small part is stretched out valve port, the lower end of described valve rod is provided with at least two pins, and described spool is provided with the same number of fixed hole adaptive with the pin size, and described valve rod achieves a fixed connection by pin is cooperated with the grafting of fixed hole with spool;
Further, described valve rod is provided with outside thread, and described valve port is provided with internal thread, described valve rod and valve port screw-thread fit;
Further, be provided with seal ring between described valve rod and the valve port;
Further, described valve rod is provided with the wear-resistant seal ring, and the inboard of described valve port is provided with and the suitable circular groove of wear-resistant seal ring;
Further, the top of described valve rod is set with the rotating switch handle;
Further, described valve body is provided with limiting stopper, and at least a portion of described limiting stopper is on the rotational plane of rotating switch handle;
Further, has the pipe joint structure that can be connected on the described valve body with iron pipe, plastic tube, aluminium-plastic composite pipe.
The beneficial effects of the utility model are:
1. the utility model adopts the grafting between the fixed hole at least two pin being arranged on stem bottom and the spool to cooperate, realize fixedlying connected between valve rod and the spool, effectively avoided traditional square connecting rod because the skidding that long term wear causes, and owing to adopted multiple spot to fix, fix than traditional single-point, fixed effect is better, and can save material;
2. seal by wear-resistant seal ring and seal ring respectively between valve rod and the valve port, its sealability is more outstanding, and prolong working life greatly;
3. low cost of manufacture of the present utility model, easy to use, prolong working life greatly, is fit to promote the use of.
Other advantages of the present utility model, target, to set forth in the following description to a certain extent with feature, and to a certain extent, based on being conspicuous to those skilled in the art, perhaps can from practice of the present utility model, obtain instruction to investigating hereinafter.Target of the present utility model and other advantages can realize and obtain by following specification and claims.
Description of drawings
In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with accompanying drawing the utility model is described in further detail, wherein:
Fig. 1 is the utility model schematic perspective view;
Fig. 2 is the utility model structural representation;
Embodiment
Hereinafter with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail.Should be appreciated that preferred embodiment only for the utility model is described, rather than in order to limit protection domain of the present utility model.
As shown in Figure 1 and Figure 2, the utility model comprises valve body 1, valve rod 2 and spool 3, valve body 1 is provided with valve port 4, valve rod 2 is provided with outside thread, valve port 2 is provided with internal thread, valve rod 2 adopts screw-thread fit to be connected with valve port 4, and valve rod 2 can be finished circulation and " locked in " operation thereby drive spool 3 in valve port 4 inner rotation.
The lower end of valve rod 2 is provided with two pins 7, and spool 3 is provided with and the suitable the same number of fixed hole 8 of pin 7 sizes, and valve rod 2 cooperates with the grafting of fixed hole 8 by pin 7 with spool 3 and achieves a fixed connection.
Valve rod 2 is provided with wear-resistant seal ring 6, and the inboard of valve port 4 is provided with the circular groove suitable with wear-resistant seal ring 6, is provided with seal washer 5 between the inwall of valve rod 2 and valve port 4, by double seal, can prevent seepage better.
The top of valve rod 2 is provided with the rotating switch handle 9 of fixedlying connected with valve rod 2, and for ease of lever operated, valve body 1 is provided with limiting stopper 10, and at least a portion of limiting stopper 10 is on the rotational plane of rotating switch handle 9.
Valve body 1 is provided with the pipe joint structure that can be connected with iron pipe, plastic tube, aluminium-plastic composite pipe, can be connected with multiple body.
Certainly, valve rod 2 is not limited to be spirally connected with the Placement of valve port 4, as long as satisfy valve rod 2 can be realized full angle or part angle in valve port 2 rotation, satisfies actual demand and gets final product.
Be that multiple spot is fixedly connected between the utility model spool 3 and the valve rod 2, long-term use can not produce skidding, and prolong working life greatly.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of the technical program, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (7)
1. novel durable ball valve, comprise valve body (1), valve rod (2) and spool (3), described valve body (1) is provided with valve port (4), described valve rod (2) is arranged in the valve port (4) in rotating mode, valve rod (2) to small part is stretched out outside the valve port (4), it is characterized in that: the lower end of described valve rod (2) is provided with at least two pins (7), described spool (3) is provided with and the suitable the same number of fixed hole (8) of pin (7) size, and described valve rod (2) cooperates with the grafting of fixed hole (8) by pin (7) with spool (3) and achieves a fixed connection.
2. novel durable ball valve according to claim 1 is characterized in that: described valve rod (2) is provided with outside thread, and described valve port (4) is provided with internal thread, described valve rod (2) and valve port (4) screw-thread fit.
3. novel durable ball valve according to claim 2 is characterized in that: be provided with seal ring (5) between the inwall of described valve rod (2) and valve port (4).
4. novel durable ball valve according to claim 3 is characterized in that: described valve rod (2) is provided with wear-resistant seal ring (6), and the inboard of described valve port (4) is provided with and the suitable circular groove of wear-resistant seal ring (6).
5. novel durable ball valve according to claim 4 is characterized in that: the top of described valve rod (2) is set with rotating switch handle (9).
6. novel durable ball valve according to claim 5 is characterized in that: described valve body (1) is provided with limiting stopper (10), and at least a portion of described limiting stopper (10) is on the rotational plane of rotating switch handle (9).
7. novel durable ball valve according to claim 6 is characterized in that: have the pipe joint structure that can be connected with iron pipe, plastic tube, aluminium-plastic composite pipe on the described valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201260551U CN201412552Y (en) | 2009-01-08 | 2009-01-08 | Novel durable ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201260551U CN201412552Y (en) | 2009-01-08 | 2009-01-08 | Novel durable ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201412552Y true CN201412552Y (en) | 2010-02-24 |
Family
ID=41714436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201260551U Expired - Fee Related CN201412552Y (en) | 2009-01-08 | 2009-01-08 | Novel durable ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201412552Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252111A (en) * | 2011-07-27 | 2011-11-23 | 董海明 | Composite ceramic hard seal ball valve |
-
2009
- 2009-01-08 CN CN2009201260551U patent/CN201412552Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252111A (en) * | 2011-07-27 | 2011-11-23 | 董海明 | Composite ceramic hard seal ball valve |
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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: 20100224 Termination date: 20140108 |