CN204153160U - A kind of stop valve - Google Patents
A kind of stop valve Download PDFInfo
- Publication number
- CN204153160U CN204153160U CN201420597340.2U CN201420597340U CN204153160U CN 204153160 U CN204153160 U CN 204153160U CN 201420597340 U CN201420597340 U CN 201420597340U CN 204153160 U CN204153160 U CN 204153160U
- Authority
- CN
- China
- Prior art keywords
- flexible seals
- flap
- cavity
- stop valve
- valve
- 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 kind of stop valve, aim to provide one and have better sealability, the stop valve of long service life, comprise rotatable handle, valve body, flap and the valve rod for driving flap to do upper and lower straight line motion, the isolation inwall of band opening is provided with in valve body, isolation inwall both sides form snout cavity and outlet plenum respectively, snout cavity and outlet plenum are conducted by opening, it is characterized in that: described isolation inwall is provided with fitting recess, the first flexible seals of band center through hole is embedded with in this fitting recess, described first flexible seals offers conical cavity, described flap is provided with the telescoping groove relative with described conical cavity, second flexible seals inconsistent with described first flexible seals is embedded in this telescoping groove.
Description
Technical field
The utility model relates to valve technology field, more particularly: it relates to a kind of stop valve.
Background technique
Stop valve is also known as pipe valve valve, belong to forced seal formula valve, so when valve closing, pressure must be applied to flap, not leak with forced seal face and obtain extensive application in medium temperature and medium pressure systems such as vapour system, oil plant system, domestic water system, compressed air systems.
Most of stop valve all exist grown service time sealability decline etc. situation cause leak situation, concrete reason majority is the problem of sealing contact surface between flap and valve body, some stop valve sealing contact surfaces are that hard sealing directly guarantees sealing by the conflict between flap and valve body, such sealing is serious when leaking after sealing contact surface wearing and tearing, and then the stop valve had does further improvement on the former basis, by setting up soft seal on flap and valve body, the sealing effect of stop valve is realized by soft seal, but soft seal instability easily comes off, so the sealability of stop valve is short of all to some extent in sum, need to be improved.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of better sealability, the stop valve of long service life.
For achieving the above object, the utility model provides following technological scheme: a kind of stop valve, comprise rotatable handle, valve body, flap and the valve rod for driving flap to do upper and lower straight line motion, the isolation inwall of band opening is provided with in valve body, isolation inwall both sides form snout cavity and outlet plenum respectively, snout cavity and outlet plenum are conducted by opening, described isolation inwall is provided with fitting recess, the first flexible seals of band center through hole is embedded with in this fitting recess, described first flexible seals offers conical cavity, described flap is provided with the telescoping groove relative with described conical cavity, second flexible seals inconsistent with described first flexible seals is embedded in this telescoping groove.
By adopting technique scheme, this stop valve by flap and isolation inwall and valve inner structure done further improvement, isolation inwall is provided with fitting recess and is embedded with the first flexible seals of band center through hole and on flap, is provided with telescoping groove and is embedded with the setting of the second flexible seals, when this stop valve is closed, valve rod drives flap and makes the mutual conflict between the first flexible seals and the second flexible seals, ensure that the soft seal between flap and valve body, fitting recess and telescoping groove arrange that clear and definite to illustrate between each flexible seals spacing, effectively avoid soft seal instability cause come off, this stop valve more sealability is better, more stable, significantly promote working life.
This practicality is set to further: have spacing cavity in described fitting recess, and described first flexible seals is provided with the positive stop lug boss suitable with described spacing cavity.
By adopting technique scheme, the setting of the spacing cavity on fitting recess and the first flexible seals upper limit boss, carry out spacing to the first flexible seals, avoid the first flexible seals to be washed out because valve inner fluid impulse force is excessive, affect the cooperation between the first flexible seals and the second flexible seals and then and cause scrapping of whole valve.
This practicality is set to further: the both sides of described telescoping groove are extruded with limited part, described second flexible seals is provided with the defining flange suitable with described limited part, and described second flexible seals is given prominence to flap surface and is provided with the taper platform be engaged in conical cavity.
By adopting technique scheme, the setting of telescoping groove upper limit portion and the second flexible seals upper limit flange, guarantee the spacing of the second flexible seals, taper platform is coupled in conical cavity the sealability further enhancing stop valve.
This practicality is set to further: be also provided with stuffing box in described valve body, and one deck wearing layer of conflicting between described stuffing box and described valve rod, described stuffing box is provided with Gland.
By adopting technique scheme, stuffing box, Gland arrange the sealing that ensure that valve rod, prevent flowing medium from spilling from valve rod, be provided with wearing layer between stuffing box and valve rod to avoid valve rod and to pump the flexible graphite packing taken out of in stuffing box, improve the working life of stop valve.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of stop valve of the utility model;
Fig. 2 is the partial enlarged drawing of A in the utility model Fig. 1.
In figure 1, rotatable handle; 2, valve body; 21, stuffing box; 22, wearing layer; 23, Gland; 3, flap; 31, telescoping groove; 311, limited part; 4, valve rod; 5, inwall is isolated; 51, opening; 52, fitting recess; 521, spacing cavity; 6, snout cavity; 7, outlet plenum; 8, the first flexible seals; 81, center through hole; 82, conical cavity; 83, positive stop lug boss; 9, the second flexible seals; 91, defining flange; 92, taper platform.
Embodiment
See figures.1.and.2 and the embodiment of a kind of stop valve of the utility model is described further.
A kind of stop valve, comprise rotatable handle 1, valve body 2, flap 3 and the valve rod 4 for driving flap 3 to do upper and lower straight line motion, the isolation inwall 5 of band opening 51 is provided with in valve body 2, isolation inwall 5 both sides form snout cavity 6 and outlet plenum 7 respectively, snout cavity 6 and outlet plenum 7 are conducted by opening 51, described isolation inwall 5 is provided with fitting recess 52, the first flexible seals 8 of band center through hole 81 is embedded with in this fitting recess 52, described first flexible seals 8 offers conical cavity 82, described flap 3 is provided with the telescoping groove 31 relative with described conical cavity 82, second flexible seals 9 inconsistent with described first flexible seals 8 is embedded in this telescoping groove 31.
This stop valve is by having done further improvement to flap 3 and isolation inwall 5 i.e. valve body 1 internal structure, isolation inwall 5 is provided with fitting recess 52 and is embedded with the first flexible seals 8 of band center through hole 81 and on flap 3, is provided with telescoping groove 31 and is embedded with the setting of the second flexible seals 9, when this stop valve is closed, valve rod 4 drives flap 3 and makes the mutual conflict between the first flexible seals 8 and the second flexible seals 9, ensure that the soft seal between flap 3 and valve body 2, fitting recess 52 and telescoping groove 31 arrange that clear and definite to illustrate between each flexible seals spacing, effectively avoid soft seal instability cause come off, this stop valve more sealability is better, more stable, significantly promote working life.
Have spacing cavity 521 in described fitting recess 52, described first flexible seals 8 is provided with the positive stop lug boss 83 suitable with described spacing cavity 521.
Spacing cavity 521 on fitting recess 52 and the setting of the first flexible seals 8 upper limit boss 83, carry out spacing to the first flexible seals 8, avoid the first flexible seals 8 to be washed out because valve inner fluid impulse force is excessive, affect the cooperation between the first flexible seals 8 and the second flexible seals 9 and then and cause scrapping of whole valve.
The both sides of described telescoping groove 31 are extruded with limited part 311, and described second flexible seals 9 is provided with the defining flange 91 suitable with described limited part 311, and described second flexible seals 9 is given prominence to flap 3 surface and is provided with the taper platform 92 be engaged in conical cavity 82.
The setting of telescoping groove 31 upper limit portion 311 and the second flexible seals 9 upper limit flange 91, that guarantees the second flexible seals 9 is spacing, and taper platform 92 is coupled to the sealability further enhancing stop valve in conical cavity 82.
Also be provided with stuffing box 21 in described valve body 2, one deck wearing layer 22 of conflicting between described stuffing box 21 and described valve rod 4, described stuffing box 21 is provided with Gland 23.
Stuffing box 21, Gland 23 arrange the sealing that ensure that valve rod 4, prevent flowing medium from spilling from valve rod 4, be provided with wearing layer 22 between stuffing box 21 and valve rod 4 to avoid valve rod 4 and to pump the flexible graphite packing taken out of in stuffing box 21, improve the working life of stop valve.
Above the utility model embodiment is described in detail, for one of ordinary skill in the art, according to the thought of 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 change done according to the constructed thought of the utility model and scope of patent protection and modification or be equal to is implemented, and is scope of patent protection of the present utility model and contains.
Claims (4)
1. a stop valve, comprise rotatable handle, valve body, flap and the valve rod for driving flap to do upper and lower straight line motion, the isolation inwall of band opening is provided with in valve body, isolation inwall both sides form snout cavity and outlet plenum respectively, snout cavity and outlet plenum are conducted by opening, it is characterized in that: described isolation inwall is provided with fitting recess, the first flexible seals of band center through hole is embedded with in this fitting recess, described first flexible seals offers conical cavity, described flap is provided with the telescoping groove relative with described conical cavity, second flexible seals inconsistent with described first flexible seals is embedded in this telescoping groove.
2. a kind of stop valve according to claim 1, is characterized in that: have spacing cavity in described fitting recess, described first flexible seals is provided with the positive stop lug boss suitable with described spacing cavity.
3. a kind of stop valve according to claim 2, it is characterized in that: the both sides of described telescoping groove are extruded with limited part, described second flexible seals is provided with the defining flange suitable with described limited part, and described second flexible seals is given prominence to flap surface and is provided with the taper platform be engaged in conical cavity.
4. a kind of stop valve according to claim 1 or 2 or 3, is characterized in that: be also provided with stuffing box in described valve body, one deck wearing layer of conflicting between described stuffing box and described valve rod, described stuffing box is provided with Gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420597340.2U CN204153160U (en) | 2014-02-28 | 2014-10-16 | A kind of stop valve |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420088327 | 2014-02-28 | ||
| CN201420088327.4 | 2014-02-28 | ||
| CN201420597340.2U CN204153160U (en) | 2014-02-28 | 2014-10-16 | A kind of stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204153160U true CN204153160U (en) | 2015-02-11 |
Family
ID=52511276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420597340.2U Expired - Fee Related CN204153160U (en) | 2014-02-28 | 2014-10-16 | A kind of stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204153160U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104976363A (en) * | 2015-06-25 | 2015-10-14 | 北京奥盛兰石油技术服务有限公司 | High-pressure valve |
| CN106090267A (en) * | 2016-08-23 | 2016-11-09 | 成都欧浦特控制阀门有限公司 | The regulation valve that a kind of sealing is high |
-
2014
- 2014-10-16 CN CN201420597340.2U patent/CN204153160U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104976363A (en) * | 2015-06-25 | 2015-10-14 | 北京奥盛兰石油技术服务有限公司 | High-pressure valve |
| CN106090267A (en) * | 2016-08-23 | 2016-11-09 | 成都欧浦特控制阀门有限公司 | The regulation valve that a kind of sealing is high |
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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: 20150211 Termination date: 20151016 |
|
| EXPY | Termination of patent right or utility model |