CN201531639U - Novel ball valve - Google Patents
Novel ball valve Download PDFInfo
- Publication number
- CN201531639U CN201531639U CN2009202579206U CN200920257920U CN201531639U CN 201531639 U CN201531639 U CN 201531639U CN 2009202579206 U CN2009202579206 U CN 2009202579206U CN 200920257920 U CN200920257920 U CN 200920257920U CN 201531639 U CN201531639 U CN 201531639U
- Authority
- CN
- China
- Prior art keywords
- valve
- spool
- valve rod
- valve body
- rod
- 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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- Taps Or Cocks (AREA)
Abstract
The utility model discloses a novel ball valve, comprising a valve body, a valve core, a valve rod and a valve core sealing gasket, wherein the valve core is positioned inside the valve body, through which an inner end of the valve rod penetrates, an outer end of the valve rod stretches out of the valve body and is connected with a handle, the inner end of the valve rod is also fixedly connected with the valve core, and a sealing structure is arranged between the valve rod and the valve body. The valve rod is assembled inwards from the outside of the valve body and is fixedly connected, achieving the purposes of simple and convenient operation, easy and time-saving assembly and avoiding the situation in which the valve rod is separated from the valve core, reasonable structure and long service life; in addition, the valve rod is simple and convenient in processing, saves material and has low cost.
Description
Technical field
The utility model belongs to valve technology field, particularly a kind of ball valve.
Background technique
Ball valve is rapid, easy to operate by means of its switch, fluid resistance is little and advantage of simple structure is widely used in industry and civil area.Existing ball valve mainly is made up of valve body, valve rod, spool and handle etc., and spool is positioned at valve body, and the inner inserted in the groove of spool after valve rod passed valve body, and valve rod is connected with the spool groove fit by front end.Valve body is inboard to be provided with valve seat with valve core chamber, and valve seat seals; The valve body opposite side is provided with valve gap, and valve gap and valve core chamber are provided with valve seat.There is following defective in above-mentioned ball valve: the first, and in use frequent handle with sleeve, and by valve rod drive spool, the phenomenon that causes valve rod and spool groove to break away from causes groove easy to wear, directly influences the using effect and the working life of ball valve; The second, the sealing surface between spool and the valve seat is protruding sphere and the concave spherical surface that coincide mutually, compresses sealing by rigidity.Because spool and valve base chamber are motive sealing, if the impacting force of spool and valve base chamber is too small, then be difficult to sealing, perhaps, easily cause leakage phenomenon by using wearing and tearing to produce the gap.The gap that produces can't be solved by regulating the valve gap position, because the shaft core position of valve rod is offset, not single sealing effect that influences the valve rod place also influences being connected of valve rod and spool groove, easily causes wearing and tearing, damages.
The model utility content
The purpose of this utility model provides a kind of ball valve of rational in infrastructure, long service life.
For achieving the above object, the technical solution of the utility model is: a kind of ball valve, comprise valve body, spool, valve rod and seal spool pad, spool is positioned at valve body, valve body is passed in valve rod the inner, its outer end is stretched out valve body and is linked to each other with handle, and described valve rod is inner to be connected with spool, is provided with sealing configuration between valve rod and the valve body.
Described sealing configuration is to tighten engage sleeves at valve rod to be provided with seal ring, and drive fit is arranged with stuffing box gland between valve body and handle being positioned at above the seal ring.
The form that is connected of described valve rod and spool is that the valve rod front end penetrates in the spool, and dowel fixes is passed through in the valve rod end.
Described seal spool pad is positioned at the spool both sides, establishes the first seal spool pad between spool inboard and the valve body, and the spool outside is provided with the second seal spool pad by gland.
The opposite side that is positioned at the valve rod present position on the described valve body is provided with tapped hole, and this tapped hole is coaxial with valve rod, and the Cock screw roof pressure in the tapped hole is on spool.
Described valve rod upper end is provided with screw thread, and handle is fixed on the valve rod by nut.
Be provided with spring pad between described valve rod upper cap nut and handle.
Compared with prior art, advantage of the present utility model is:
1, valve rod is inwardly assembled by the valve body outside and is connected, and is easy and simple to handle, and assembling simply saves time, and the phenomenon that valve rod separates with spool can not occur, and is rational in infrastructure, long service life; In addition, valve rod processing is easy, and the material saving is with low cost.
2, adopt seal ring and stuffing box gland double seal on the valve rod, good seal performance, it is low, wear-resisting durable to reveal probability, long service life.
3, the Cock screw roof pressure that is provided with on the valve body plays the assist location effect on spool, accurate positioning, reliable makes the valve core rotation balance and stability, improves the ball valve using effect.
4, handle can be realized fixing by the screw-thread fit of nut and valve rod upper end, and assembling is simple, and is easy and simple to handle, fixing reliable.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Ball valve as shown in Figure 1, it comprises valve body 1, spool 2, valve rod 3 and seal spool pad 4, spool 2 is positioned at valve body 1, be provided with the seal spool pad in the both sides of spool 2, between spool 2 inboards and valve body 1, establish the first seal spool pad 4, by gland 5 the second seal spool pad, 41, the first seal spool pads 4 are set in spool 2 outsides and the second seal spool pad 41 seals.Valve rod 3 the inners are stretched in the valve body 1 and with spool 2 and are connected, and valve rod 3 with the form that is connected of spool 2 is: valve rod 3 front ends penetrate in the spool 2, and are fixing by inserting pin 10 in the end of valve rod 3.Between valve rod 3 and valve body 1, be provided with sealing configuration, the sealing structure is to tighten at valve rod 3 to cooperate sheathed seal ring 6, above the seal ring 6 between valve body 1 and handle 8 the sheathed stuffing box gland 61 of drive fit, the material of seal ring 6 and stuffing box gland 61 is teflon, corrosion resistance is strong, wear-resisting durable, good seal performance, long service life.The valve body 1 that is positioned at valve rod 3 present position opposite sides is provided with tapped hole 11, and this tapped hole 11 and valve rod 3 coaxial settings are provided with Cock screw 12 in tapped hole 11, and Cock screw 12 roof pressures play the assist location effect on spool 2.For making sealing effect better, on Cock screw 12, be arranged with seal ring 13.The outer end of valve rod 3 is stretched out valve body 1 and is provided with screw thread, and handle 8 is enclosed within on the valve rod 3 and by nut 7 tightenings, also is arranged with spring pad 9 between nut 7 and handle 8.
The utility model is not limited to above-mentioned mode of execution: valve rod 3 the inners also can adopt Type of Welding to be connected with the form that is connected of spool 2, perhaps establish on the valve rod 3 on outside thread, the spool 2 and establish tapped hole, link to each other by the form of being threaded.
Claims (7)
1. a ball valve comprises valve body, spool, valve rod and seal spool pad, and spool is positioned at valve body, valve body is passed in valve rod the inner, its outer end is stretched out valve body and linked to each other with handle, it is characterized in that: described valve rod is inner to be connected with spool, is provided with sealing configuration between valve rod and the valve body.
2. ball valve as claimed in claim 1 is characterized in that: described sealing configuration is to tighten engage sleeves at valve rod to be provided with seal ring, and drive fit is arranged with stuffing box gland between valve body and handle being positioned at above the seal ring.
3. ball valve as claimed in claim 1 or 2 is characterized in that: the form that is connected of described valve rod and spool is that the valve rod front end penetrates in the spool, and dowel fixes is passed through in the valve rod end.
4. ball valve as claimed in claim 3 is characterized in that: described seal spool pad is positioned at the spool both sides, establishes the first seal spool pad between spool inboard and the valve body, and the spool outside is provided with the second seal spool pad by gland.
5. ball valve as claimed in claim 4 is characterized in that: the opposite side that is positioned at the valve rod present position on the described valve body is provided with tapped hole, and this tapped hole is coaxial with valve rod, and the Cock screw roof pressure in the tapped hole is on spool.
6. ball valve as claimed in claim 5 is characterized in that: described valve rod upper end is provided with screw thread, and handle is fixed on the valve rod by nut.
7. ball valve as claimed in claim 6 is characterized in that: be provided with spring pad between described valve rod upper cap nut and handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202579206U CN201531639U (en) | 2009-11-06 | 2009-11-06 | Novel ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202579206U CN201531639U (en) | 2009-11-06 | 2009-11-06 | Novel ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201531639U true CN201531639U (en) | 2010-07-21 |
Family
ID=42527043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202579206U Expired - Fee Related CN201531639U (en) | 2009-11-06 | 2009-11-06 | Novel ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201531639U (en) |
-
2009
- 2009-11-06 CN CN2009202579206U patent/CN201531639U/en not_active Expired - Fee Related
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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: 20100721 Termination date: 20111106 |