CN205136663U - Ball valve - Google Patents
Ball valve Download PDFInfo
- Publication number
- CN205136663U CN205136663U CN201520874736.1U CN201520874736U CN205136663U CN 205136663 U CN205136663 U CN 205136663U CN 201520874736 U CN201520874736 U CN 201520874736U CN 205136663 U CN205136663 U CN 205136663U
- Authority
- CN
- China
- Prior art keywords
- valve body
- ball valve
- spool
- ring
- case
- 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 relates to the technical field of valves, specifically be a ball valve, including the ball valve body, the ball valve body includes interconnect's valve body and valve cap, is equipped with the case in the valve body, is used for to drive spool rotation's valve rod, and the both ends of case all are equipped with to seal fills up, the arc form is personally submitted to the outward appearance of case, the case on be equipped with the spacing groove, the case on be equipped with the elastic ring, spacing groove and elastic ring are located the opposition side of case respectively, it is protruding to be equipped with the location of stretching into the spacing groove on the valve rod, the bellied length in depth ratio location of spacing groove is big, fixes a position bellied length 3.3mm -3.4mm, distance between elastic ring and the valve body inner wall is 3.3mm -3.4mm, sealed stacking up be equipped with the bracing ring, be equipped with the conical surface on the bracing ring. The utility model discloses simple structure, the practicality is strong.
Description
Technical field
The utility model relates to valve technology field, is specially ball valve.
Background technique
At present, the common configuration of the ball valve adopted both at home and abroad is: the surface of contact between spool and entrance point, outlet end is provided with a pair sealing gasket, reaches the object of sealing with this.But, along with the access times of ball valve increase, be easy to the wearing and tearing causing sealing gasket, cause the joint fluid of spool and sealing gasket to leak, have influence on the sealability of ball valve, and reduce working life.
Traditional ball valve is in assembly process, and because of the structural design reason of spool and valve body, cause spool to be arranged in the process of valve body, the positioning convex on valve rod is not easy to be stuck on the restraining groove of spool, and then causes efficiency of assembling to reduce.
In use, fluid directly impacts sealing place of ball valve and adapter to traditional ball valve, causes sealing place easily to damage, and leakage efficiency reduces, and fluid easily leaks from sealing.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of good sealing effect, long service life and the high ball valve of assembling effect.
For achieving the above object, the utility model provides following technological scheme: a kind of ball valve, comprise ball valve body, ball valve body comprises interconnective valve body and bonnet, spool is provided with in valve body, for driving the valve rod of Spool rotating, the two ends of spool are equipped with sealing gasket, the curved shape of outer surface of described spool, it is characterized in that: described spool is provided with restraining groove, described spool is provided with elastic ring, restraining groove and elastic ring lay respectively at the opposite side of spool, valve rod is provided with the positioning convex stretching into restraining groove, the length of the depth ratio positioning convex of restraining groove is large, the length 3.3mm-3.4mm of positioning convex, distance between described elastic ring and valve interior wall is 3.3mm-3.4mm, described sealing gasket is provided with bracing ring, bracing ring is provided with the conical surface.
Further, the two ends of described ball valve body are provided with switching device, and described switching device comprises adapter, takes over and is connected on ball valve body by lock nut.
Further, the end face at described ball valve body two ends is provided with seal groove, and seal groove is provided with seal ring.
Further, described ball valve body comprises inlet passage, and the inwall of described adapter is provided with the back-up ring of ring-type, and the internal diameter of back-up ring is less than the internal diameter of inlet passage.
Contrast the deficiencies in the prior art, the beneficial effect that the technological scheme that the utility model provides is brought: 1. in assembly process, first valve rod is contained in valve body, the length h of the positioning convex on valve rod is 2mm-2.1mm, and the distance H between datum clamp face and valve interior wall is 2.5mm-2.6mm, namely spool can move down the distance of 2.5mm-2.6mm and not touch the positioning convex of valve rod, when spool move to restraining groove is just positioned at immediately below positioning convex time, move up spool, positioning convex is just stuck on restraining groove, the sealing gasket at spool two ends is finally utilized to hold up spool, spool is made to be in vacant state in valve body, and by bonnet press seal pad and spool, in the process, spool, valve rod can be easy to load in valve body, and positioning convex can be easy to be stuck on restraining groove, and then improve efficiency of assembling.
2. the curved shape in the surface of spool, and the part that bracing ring contacts with spool is provided with the conical surface, utilize spool and bonnet press seal pad and spool, and sealing gasket is made up of rubber elastomeric material, in the process compressed, rubber pad is out of shape, and then make the conical surface be out of shape in the cambered surface with spool face adaptation, now, rubber pad is in compressive state, even if rubber pad weares and teares to some extent, the rubber pad of pressurized itself supplements the part of wearing and tearing, the phenomenon that effective anti-fluid is leaked from the joint of rubber pad and spool occurs, improve sealing effect, extend the working life of ball valve.
3. by above design; the back-up ring of nozzle inner wall effective anti-fluid can directly impact the place of being tightly connected of ball valve and adapter and phenomenon that sealing joint is damaged occurs; the seal ring of effective protection sealing joint; ensure that sealability, the phenomenon that anti-fluid is leaked from sealing occurs.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of valve rod.
Fig. 3 is the structural representation of sealing gasket.
Fig. 4 is the structural representation of spool.
Embodiment
With reference to Fig. 1-Fig. 4, the utility model is described further.
A kind of ball valve, comprise ball valve body, ball valve body comprises interconnective valve body 1 and bonnet 2, spool 3 is provided with in valve body 1, the valve rod 4 rotated for driving spool 3, the two ends of spool 3 are equipped with sealing gasket 5, the curved shape of outer surface of described spool 3, it is characterized in that: described spool 3 is provided with restraining groove 31, described spool 3 is provided with elastic ring 32, restraining groove 31 and elastic ring 32 lay respectively at the opposite side of spool 3, valve rod 4 is provided with the positioning convex 41 stretching into restraining groove 31, the length of the depth ratio positioning convex 41 of restraining groove 31 is large, the length 3.3mm-3.4mm of positioning convex 41, distance between described elastic ring 32 and valve body 1 inwall is 3.3mm-3.4mm, described sealing gasket 5 is provided with bracing ring 51, bracing ring 51 is provided with the conical surface 52.
In assembly process, first valve rod 4 is contained in valve body 1, the length h of the positioning convex 41 on valve rod 4 is 3.3mm-3.4mm, and the distance H between datum clamp face and valve body 1 inwall is 3.3mm-3.4mm, namely spool 33 can move down 3.3mm-3.4mm, because H is basic identical with h, add can being out of shape a little of elastic ring 32, therefore spool 3 is sent into valve body 1 and is not touched the positioning convex 41 of valve rod 4, when spool 3 move to restraining groove 31 is just positioned at immediately below positioning convex 41 time, move up spool 3, positioning convex 41 is made just to be stuck on restraining groove 31, the sealing gasket 5 at spool 3 two ends is finally utilized to hold up spool 3, spool 3 is made to be in vacant state in valve body 1, and by bonnet 2 press seal pad 5 and spool 3, in the process, spool 3, valve rod 4 can be easy to load in valve body 1, and positioning convex 41 can be easy to be stuck on restraining groove 31, and then improve efficiency of assembling.
The curved shape in surface of spool 3, and the part that bracing ring 51 contacts with spool 3 is provided with the conical surface 52, utilize spool 3 and bonnet 2 press seal pad 5 and spool 3, and sealing gasket 5 is made up of rubber elastomeric material, in the process compressed, rubber pad is out of shape, and then make the conical surface 52 be out of shape in the cambered surface adaptive with spool 3 surface, now, rubber pad is in compressive state, even if rubber pad weares and teares to some extent, the rubber pad of pressurized itself supplements the part of wearing and tearing, the phenomenon that effective anti-fluid is leaked from sealing gasket 5 and the joint of spool 3 occurs, improve sealing effect, extend the working life of ball valve.
Further, the two ends of described ball valve body are provided with switching device, and described switching device comprises adapter 6, and adapter 6 is connected on ball valve body by lock nut 7.
Further, the end face at described ball valve body two ends is provided with seal groove, and seal groove is provided with seal ring 8.
Further, described ball valve body comprises inlet passage, and the inwall of described adapter 6 is provided with the back-up ring 61 of ring-type, and the internal diameter of back-up ring 61 is less than the internal diameter of inlet passage.
By above design; the back-up ring 61 of adapter 6 inwall effective anti-fluid can directly impact ball valve and the place of being tightly connected of adapter 6 and phenomenon that sealing joint is damaged occurs; the seal ring 8 of effective protection sealing joint; ensure that sealability, the phenomenon that anti-fluid is leaked from sealing occurs.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, those skilled in the art carries out common change and replaces should being included in protection domain of the present utility model within the scope of technical solutions of the utility model.
Claims (4)
1. a ball valve, comprise ball valve body, ball valve body comprises interconnective valve body and bonnet, spool is provided with in valve body, for driving the valve rod of Spool rotating, the two ends of spool are equipped with sealing gasket, the curved shape of outer surface of described spool, it is characterized in that: described spool is provided with restraining groove, described spool is provided with elastic ring, restraining groove and elastic ring lay respectively at the opposite side of spool, valve rod is provided with the positioning convex stretching into restraining groove, the length of the depth ratio positioning convex of restraining groove is large, the length 3.3mm-3.4mm of positioning convex, distance between described elastic ring and valve interior wall is 3.3mm-3.4mm, described sealing gasket is provided with bracing ring, bracing ring is provided with the conical surface.
2. ball valve according to claim 1, is characterized in that: the two ends of described ball valve body are provided with switching device, and described switching device comprises adapter, takes over and is connected on ball valve body by lock nut.
3. ball valve according to claim 2, is characterized in that: the end face at described ball valve body two ends is provided with seal groove, and seal groove is provided with seal ring.
4. ball valve according to claim 2, is characterized in that: described ball valve body comprises inlet passage, and the inwall of described adapter is provided with the back-up ring of ring-type, and the internal diameter of back-up ring is less than the internal diameter of inlet passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520874736.1U CN205136663U (en) | 2015-11-04 | 2015-11-04 | Ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520874736.1U CN205136663U (en) | 2015-11-04 | 2015-11-04 | Ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205136663U true CN205136663U (en) | 2016-04-06 |
Family
ID=55622458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520874736.1U Expired - Fee Related CN205136663U (en) | 2015-11-04 | 2015-11-04 | Ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205136663U (en) |
-
2015
- 2015-11-04 CN CN201520874736.1U patent/CN205136663U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20201104 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |