CN206429686U - A kind of double-seal ball valve - Google Patents
A kind of double-seal ball valve Download PDFInfo
- Publication number
- CN206429686U CN206429686U CN201720033716.0U CN201720033716U CN206429686U CN 206429686 U CN206429686 U CN 206429686U CN 201720033716 U CN201720033716 U CN 201720033716U CN 206429686 U CN206429686 U CN 206429686U
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- China
- Prior art keywords
- valve
- seal
- ring
- sealing
- ball valve
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Abstract
The utility model discloses a kind of double-seal ball valve, aim to provide a kind of good airproof performance, the double-seal ball valve of service life length, its drip irrigation device is a kind of double-seal ball valve, including valve body, ball valve is provided with valve body, mounting interface is additionally provided with the valve body, valve rod is provided with mounting interface, sealing ring is cased with valve rod, the pressure cap for compressing sealing ring is also cased with valve rod, pressure cap is threadedly coupled with mounting interface, sealing ring includes the primary sealing area contradicted with stem side wall, the secondary sealing area contradicted with mounting interface inwall, the annular groove of some arcuate structures is equipped with primary sealing area and secondary sealing area, axially uniform arrangement of the annular groove along sealing ring, the cell wall of two adjacent annular grooves is connected by the conflict wall of evagination arcuate structure, annular groove is additionally provided with valve rod, sealing ring is provided with annular groove, the utility model is applied to valve technology field.
Description
Technical field
The utility model is related to a kind of valve technology field, more specifically, it relates to a kind of double-seal ball valve.
Background technology
The valve that ball valve is driven valve ball by valve rod and rotated around valve ball axis as being a kind of, available for fluid
Regulation and control.
At present, the ball valve of in the market, generally opens up at valve rod and sealing ring is installed in annular groove, annular groove for sealing, also have
It is single for sealed sealing ring or bush structure sealing effectiveness using seal with buss, and easily abrasion, cause sealing
Difference, so as to easily produce drainage at valve rod, in use, valve ball two ends set seal to be used to seal, and valve ball turns
It is dynamic that friction is produced to seal, abrasion can be caused, due to gap can be produced after abrasion, so sealing can be reduced, and valve ball
When rotating, seal play can be caused and change position, and reduce sealing, then produce drainage, it is necessary to change,
Service life can be influenceed.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of good airproof performance, service life
Long double-seal ball valve.
To achieve the above object, the utility model provides following technical scheme：A kind of double-seal ball valve, including valve body,
Valve ball is provided with valve body, valve body one end is water inlet end, and the valve body other end is water side, and water inlet end is provided with bonnet, it is characterized in that：
It is additionally provided with the valve body in mounting interface, mounting interface and is provided with valve rod, is cased with also being cased with being used on sealing ring, valve rod on valve rod
Compress the pressure cap of sealing ring, pressure cap be threadedly coupled with mounting interface, sealing ring including the primary sealing area with the conflict of stem side wall,
The ring of some arcuate structures is equipped with the secondary sealing area contradicted with mounting interface inwall, primary sealing area and secondary sealing area
Shape groove, axially uniform arrangement of the annular groove along sealing ring, the conflict wall that the cell walls of two adjacent annular grooves passes through evagination arcuate structure
It is connected, is additionally provided with valve rod in stopper slot, stopper slot and is provided with sealing ring.
By using above-mentioned technical proposal, seal ring set is installed in mounting interface on valve rod, primary sealing area with
Stem side wall is contradicted, and secondary sealing area is contradicted with mounting interface inwall, by pressure cap crush seal ring, it is deformed to both sides swollen
It is swollen, so as to improve the sealing between the sealing and sealing ring and mounting interface between sealing ring and valve rod, due to first close
The annular groove of some arcuate structures, axially uniform arrangement of the annular groove along sealing ring, two are equipped with front cover and secondary sealing area
The cell wall of adjacent annular groove is connected by the conflict wall of evagination arcuate structure, and sealing ring is elastomeric material, and deep-slotted chip breaker can
To increase the elasticity of sealing ring, when the sealing ring is extruded by pressure cap, the axial direction of sealing is more easy to shrink, and produces elastic potential
Can, and elastic potential energy can be such that conflict wall is expanded to radial direction, so that the sealing of primary sealing area and secondary sealing area is more
It is good, when contradicting wall generation abrasion, the elastic potential energy of sealing ring itself can be relied on, continues to hold its seal under, increase uses the longevity
Life, is additionally provided with valve rod in stopper slot, stopper slot and is provided with sealing ring, and sealing ring is squeezed by stopper slot and mounting interface inwall
Pressure, can further increase individual sealing between valve rod and mounting interface.
The utility model is further arranged to：The connection end of the water inlet end and valve body is provided with and is placed on valve interior wall
First locating ring, the inwall of bonnet is provided with the second locating ring, and the first locating ring and the second locating ring are placed in valve ball both sides, first
First seal is provided between locating ring and valve ball, second seal, first seal are provided between the second locating ring and valve ball
The first limiting section is provided with the conflict end of the first locating ring, and the conflict end of second seal and the second locating ring is provided with second
Limiting section, the side wall of the first limiting section is connected to form the first arcwall with first seal, the side wall of the second limiting section and second
Seal connects to form the second arcwall, and the first locating ring is provided with the first snap ring contradicted with the first arcwall, the second positioning
Ring is provided with the second snap ring contradicted with the second arcwall.
By using above-mentioned technical proposal, the first locating ring and the second locating ring play the role of positioning to valve ball, the first sealing
Part makes to play sealing function between the first locating ring and valve ball, and second seal makes to play sealing between the second locating ring and valve ball
Effect, so that sealing function can be played during valve ball closure, because the first limiting section is placed in first seal and the first locating ring
Inconsistent end face on, and positioned at the outside of end face, so when installing, the first limiting section can make first seal and first fixed
Gap is left between the ring of position, the side wall of the first limiting section is connected to form the first arcwall with first seal, the engaging of the first snap ring
With on the first arcwall, the first snap ring plays fixed position-limiting action to the first locating ring, prevent first seal when valve ball is rotated
Play and influence sealing, while the arcuate structure of the first arcwall can play scattered surface stress, it is ensured that structural strength, when
When screwing bonnet, valve ball can extrude first seal on the first snap ring, and the first limiting section passes through the first snap ring engaging and first
On the connection end of locating ring and valve body, because first seal is typically using plastics and with certain elasticity, first seal
Stress can be deformed to gap location, and the first snap ring plays the effect of balance pivot, when generation between valve ball and first seal
During loosening, first seal has restoring force, makes first seal continue to be brought into close contact with valve ball, keeps sealing, and increase makes
With the life-span, second seal is identical with the structure of first seal, and principle is identical, and the effect played is also identical.
The utility model is further arranged to：The valve rod is provided with handle, and handle is fixed on valve rod by nut.
By using above-mentioned technical proposal, handle is easy to the rotation of valve rod, and nut is easy to the dismounting and change of handle.
Brief description of the drawings
Fig. 1 is a kind of structural representation of double-seal ball valve embodiment of the utility model.
Fig. 2 is the structural representation of sealing ring in a kind of double-seal ball valve embodiment of the utility model.
Fig. 3 is A portions mplifying structure schematic diagram in a kind of double-seal ball valve embodiment Fig. 1 of the utility model.
Reference is in figure, 1- valve bodies, 2- ball valves, 3- water inlet ends, 6- water sides, 7- valve rods, 8- sealing rings, 9- pressures
Cap, 11- primary sealing areas, 12- secondary sealing areas, 13- deep-slotted chip breakers, 14- conflict walls, 15- annular grooves, the locating rings of 21- first,
The locating rings of 22- second, 23- first seals, 24- second seals, the limiting sections of 25- first, the arcwalls of 26- first, 27- first
Snap ring, the snap rings of 28- second, the snap rings of 28- second, 30- handles, 31- nuts.
Embodiment
A kind of double-seal ball valve embodiment of the utility model is described further referring to figs. 1 to Fig. 3.
Valve ball 2 is provided with a kind of double-seal ball valve, including valve body 1, valve body 1, the one end of valve body 1 is water inlet end 3, and valve body 1 is another
One end is water side 6, and water inlet end 3 is provided with bonnet, it is characterized in that：It is additionally provided with the valve body 1 in mounting interface, mounting interface
Provided with valve rod 7, it is cased with being also cased with the pressure cap 9 for compressing sealing ring 8 on sealing ring 8, valve rod 7 on valve rod 7, pressure cap 9 is with installing
Interface thread is connected, primary sealing area 11 that sealing ring 8 includes contradicting with the side wall of valve rod 7, the contradicted with mounting interface inwall
The annular groove 13 of some arcuate structures, annular groove 13 are equipped with two sealing surfaces 12, primary sealing area 11 and secondary sealing area 12
Along the axially uniform arrangement of sealing ring 8, the cell wall of two adjacent annular grooves 13 is connected by the conflict wall 14 of evagination arcuate structure,
It is additionally provided with valve rod 7 in stopper slot 15, stopper slot 15 and is provided with sealing ring.
By using above-mentioned technical proposal, sealing ring 8 is placed on valve rod 7, and is installed in mounting interface, primary sealing area
11 are contradicted with the side wall of valve rod 7, and secondary sealing area 12 is contradicted with mounting interface inwall, by the crush seal ring 8 of pressure cap 9, make its to
Both sides deformed dilation, so as to improve the sealing between the sealing and sealing ring 8 and mounting interface between sealing ring 8 and valve rod 7
Property, due to being equipped with the annular groove 13 of some arcuate structures on primary sealing area 11 and secondary sealing area 12, annular groove 13 is along close
The axially uniform arrangement of seal ring 8, the cell wall of two adjacent annular grooves 13 is connected by the conflict wall 14 of evagination arcuate structure, sealed
Ring 8 is elastomeric material, and annular groove 13 can increase the elasticity of sealing ring 8, when the sealing ring 8 extrude by pressure cap 9, is sealed
Property axial direction be more easy to shrink, produce elastic potential energy, and elastic potential energy can be such that conflict wall 14 is expanded to radial direction so that
The better tightness of primary sealing area 11 and secondary sealing area 12, when contradicting the generation abrasion of wall 14, can rely on sealing ring 8 itself
Elastic potential energy, continue to hold its seal under, increase service life, be additionally provided with stopper slot 15, stopper slot 15 on valve rod 7 and be provided with
Sealing ring, sealing ring can further increase a valve rod 7 and mounting interface by the extruding of stopper slot 15 and mounting interface inwall
Between sealing.
The utility model is further arranged to：The connection end of the water inlet end 3 and valve body 1, which is provided with, is placed in the inwall of valve body 1
On the first locating ring 21, the inwall of bonnet is provided with the second locating ring 22, and the first locating ring 21 and the second locating ring 22 are placed in
The both sides of valve ball 2, are provided with first seal 23, are provided between the second locating ring 22 and valve ball 2 between the first locating ring 21 and valve ball 2
Second seal 24, the conflict end of the locating ring 21 of first seal 23 and first is provided with the first limiting section 25, second seal
24 and second the conflict end of locating ring 22 be provided with the second limiting section, the side wall of the first limiting section 25 is connected with first seal 23
The first arcwall 26 is formed, the side wall of the second limiting section is connected the second arcwall of formation, the first locating ring with second seal 24
21 are provided with the first snap ring 27 contradicted with the first arcwall 26, and the second locating ring 22 is provided with the contradicted with the second arcwall
Two snap rings 28.
By using above-mentioned technical proposal, the first locating ring 21 and the second locating ring 22 play the role of positioning to valve ball 2, and first
Seal 23 makes to play sealing function between the first locating ring 21 and valve ball 2, and second seal 24 makes the second locating ring 22 and valve
Sealing function is played between ball 2, so that sealing function can be played during the closure of valve ball 2, because the first limiting section 25 is placed in first
On the inconsistent end face of the locating ring 21 of seal 23 and first, and positioned at the outside of end face, so when installing, the first limiting section
25 can make to leave gap, side wall and the first seal 23 of the first limiting section 25 between the locating ring 21 of first seal 23 and first
Connection is formed in the first arcwall 26, the engaging of the first snap ring 27 and the first arcwall 26, the first 27 pair first of snap ring locating ring 21
Fixed position-limiting action is played, the play of first seal 23 when valve ball 2 is rotated is prevented and influences sealing, while the first arcwall 26
Arcuate structure can play scattered surface stress, it is ensured that structural strength, when screwing bonnet, valve ball 2 can extrude the first sealing
Part 23 is on the first snap ring 27, and the first limiting section 25 engages the connection with the first locating ring 21 and valve body 1 by the first snap ring 27
On end, because first seal 23 is typically using plastics and with certain elasticity, the stress of first seal 23 can be to gap location
It is deformed, the first snap ring 27 plays the effect of balance pivot, when producing loosening between valve ball 2 and first seal 23, the
One seal 23 has restoring force, makes first seal 23 continue to be brought into close contact with valve ball 2, keeps sealing, and increase uses the longevity
Life, second seal 24 is identical with the structure of first seal 23, and principle is identical, and the effect played is also identical.
The utility model is further arranged to：The valve rod 7 is provided with handle 30, and handle 30 is fixed on valve by nut 31
On bar 7.
By using above-mentioned technical proposal, handle 30 is easy to the rotation of valve rod 7, and nut 31 is easy to the dismounting of handle 30 more
Change.
Preferred embodiment of the present utility model is the foregoing is only, not to limit the utility model, the skill of this area
Art personnel carry out common variations and alternatives in the range of technical solutions of the utility model should all be included in of the present utility model protect
In the range of shield.
Claims (3)
1. being provided with ball valve in a kind of double-seal ball valve, including valve body, valve body, valve body one end is water inlet end, and the valve body other end is
Water end (W.E.), water inlet end is provided with bonnet, it is characterized in that：It is additionally provided with the valve body in mounting interface, mounting interface and is provided with valve rod, valve
It is cased with being also cased with the pressure cap for compressing sealing ring on sealing ring, valve rod on bar, pressure cap is threadedly coupled with mounting interface, sealing ring
Including the primary sealing area contradicted with stem side wall, the secondary sealing area contradicted with mounting interface inwall, primary sealing area and the
The annular groove of some arcuate structures, axially uniform arrangement of the annular groove along sealing ring, two adjacent annulars are equipped with two sealing surfaces
The cell wall of groove is connected by the conflict wall of evagination arcuate structure, is additionally provided with valve rod in annular groove, annular groove and is provided with sealing ring.
2. a kind of double-seal ball valve according to claim 1, it is characterized in that：Set on the connection end of the water inlet end and valve body
There is the first locating ring being placed on valve interior wall, the inwall of bonnet is provided with the second locating ring, the first locating ring and the second positioning
Ring is placed in ball valve both sides, and first seal is provided between the first locating ring and ball valve, provided with the between the second locating ring and ball valve
The conflict end of two seals, first seal and the first locating ring is provided with the first limiting section, second seal and the second positioning
The conflict end of ring is provided with the second limiting section, and the side wall of the first limiting section is connected to form the first arcwall with first seal, the
The side wall of two limiting sections is connected to form the second arcwall with second seal, and the first locating ring is provided with to be contradicted with the first arcwall
The first snap ring, the second locating ring be provided with the second arcwall contradict the second snap ring.
3. a kind of double-seal ball valve according to claim 1, it is characterized in that：The valve rod is provided with handle, and handle passes through
Nut is fixed on valve rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720033716.0U CN206429686U (en) | 2017-01-12 | 2017-01-12 | A kind of double-seal ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720033716.0U CN206429686U (en) | 2017-01-12 | 2017-01-12 | A kind of double-seal ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206429686U true CN206429686U (en) | 2017-08-22 |
Family
ID=59582166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720033716.0U Expired - Fee Related CN206429686U (en) | 2017-01-12 | 2017-01-12 | A kind of double-seal ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206429686U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084022A (en) * | 2018-09-21 | 2018-12-25 | 上海沪东造船阀门有限公司 | A kind of ultralow temperature ball valve seals |
-
2017
- 2017-01-12 CN CN201720033716.0U patent/CN206429686U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084022A (en) * | 2018-09-21 | 2018-12-25 | 上海沪东造船阀门有限公司 | A kind of ultralow temperature ball valve seals |
| CN109084022B (en) * | 2018-09-21 | 2021-03-23 | 上海沪东造船阀门有限公司 | Ultra-low temperature ball valve seal ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170822 Termination date: 20210112 |