CN207093833U - A kind of dynamic sealing mechanism for ball valve - Google Patents
A kind of dynamic sealing mechanism for ball valve Download PDFInfo
- Publication number
- CN207093833U CN207093833U CN201721032026.XU CN201721032026U CN207093833U CN 207093833 U CN207093833 U CN 207093833U CN 201721032026 U CN201721032026 U CN 201721032026U CN 207093833 U CN207093833 U CN 207093833U
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- ball valve
- ring
- support frame
- groove
- rotary packing
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Abstract
The utility model discloses a kind of dynamic sealing mechanism for ball valve, including connecting tube（1）, the first O-ring（2）, ball valve shell（3）, ball for ball valve（4）, wavy spring（5）, support frame（6）, the second O-ring（7）And rotary packing ring（8）, the first O-ring（2）Positioned at first groove and ball valve shell（3）Between, the second O-ring is located at support frame（6）With connecting tube（1）Between, connecting tube（1）One end inwall sets groove（12）, wavy spring（5）, support frame（6）And rotary packing ring（8）It is arranged at groove（12）It is interior, rotary packing ring（8）Other end and support frame（6）Contact connection.Sealed between the utility model housing and connecting tube, support frame and connecting tube by O-ring, good sealing effect, and the mutual cooperation of rotary packing ring and support frame, it can effectively lift durability of the present utility model.
Description
Technical field
The utility model belongs to technical field of automobile parts, more particularly to a kind of dynamic sealing mechanism for ball valve.
Background technology
Ball valve is one of widely used valve, and its is simple in construction, and sealed reliable is easy to maintenance, sealing surface and ball
Body often in closure state, is not easy, by medium erosion, to be widely used in oil, chemical industry, metallurgy, light textile, food, atomic energy, boat
The fields such as sky, existing ball valve generally include valve body, valve seat, bonnet, spheroid and valve rod.Wherein, positioning of the spheroid in valve body
Be by spheroid upper/lower terminal process two sections of ball axles, while respectively the corresponding position of valve body and bonnet process ball axis hole, ball
Coordinated between axle and ball axis hole by bearing, so as to realize the positioning to spheroid.With the hair of China's oil, gas industry
Exhibition, natural gas are increasingly favored as clean energy resource.
Ball valve long-term work in automotive field, water tank high pressure, high and low temperature alternative environment in, ball that inside uses
Valve needs to ensure to ensure good sealing under this condition, and existing ball valve, the main contact using between valve seat and ball
Sealing is formed, reaches sealing effectiveness, this passive seal form still has larger potential safety hazard in use.
Application publication number CN106090281A discloses a kind of ball valve and the seal for ball valve, and seal includes axis
First and second parallel sealing ring, the material of first and second sealing ring is different, the first sealing ring be located at the second sealing ring axially towards
The side of spheroid into ball valve, and be used for the sphere-contact of spheroid to be sealed；First and second sealing ring is fixedly installed, the
One sealing ring is stamping forming ring-shaped P TFE pieces；The structure is disadvantageous in that：The section of the framework ring of the structure is L-shaped
Design, there is the problem of by external force crimp in framework ring, so as to influence the sealing of the second sealing ring during long-term use
Effect, and framework ring right side can equally influence the structure with the problem of gap in miscellaneous part connection procedure be present
Sealing effectiveness.
Utility model content
In view of this, the purpose of this utility model is in view of the shortcomings of the prior art, there is provided a kind of for the dynamic close of ball valve
Sealed between sealing mechanism, housing and connecting tube, support frame and connecting tube by O-ring, good sealing effect, Er Qiedong
The mutual cooperation of sealing ring and support frame ramp structure, it can effectively lift durability of the present utility model.
To reach above-mentioned purpose, the utility model uses following technical scheme：
A kind of dynamic sealing mechanism for ball valve, including connecting tube, the first O-ring, wavy spring, support frame, the 2nd O
Shape circle and rotary packing ring, one end of the connecting tube are stretched into the ball valve shell of ball valve, it is described connection pipe outer wall set flange and
First groove, the flange are bolted to connection with ball valve shell, and first O-ring is located at first groove and ball valve shell
Rotated between body, in the ball valve shell and ball for ball valve is set, one end inwall that the connecting tube is stretched into ball valve shell is set
Groove, the wavy spring, support frame and rotary packing ring are arranged in groove, and the support frame includes annular and tilted
Plate, annular horizontal plate and annular vertical plate, the wavy spring is between groove bottom land and annular vertical plate, the 2nd O
Shape circle is arranged in the second groove being made up of annular hang plate, annular horizontal plate and annular vertical plate, the rotary packing ring one
End face is slidably matched with ball for ball valve, the other end of the rotary packing ring and annular hang plate, the annular horizontal of support frame
Plate matches.
Further, the rotary packing ring is made up of PTEE materials.
Further, the rotary packing ring sets barb, the end position of the barb close to the end face upper end of support frame
In in second groove.
Further, the end face that the rotary packing ring is in contact with ball for ball valve sets ring-shaped liquid holding tank.
Further, the first groove is located at the end face that flange is in contact with ball valve shell.
The beneficial effects of the utility model are：
1. being sealed between housing and connecting tube by the first O-ring, pass through second between support frame and connecting tube
O-ring is sealed, and so as to realize the integral sealing to ball valve, and O-ring dimensions of the prior art is complete,
Produce in enormous quantities, cost all relative moderates of exploitation and production.
2. there is the advantages of each orientation pressure is uniform as pressure compensation part using wavy spring.
3. support frame is contacted with rotary packing ring using domatic, under high temperature, normal temperature, cryogenic conditions, rule are all compared in deformation
Then, it is ensured that preferable sealing effectiveness.
4. rotary packing ring and ball for ball valve are sphere-contacts, contact area is big, and band is wider, and sealing effectiveness is preferable.
5. support frame is made using stainless steel, thickness can be made very thin, reduce radial direction of the present utility model and axial direction
Size.
Brief description of the drawings
Fig. 1 is the cross-sectional view of the utility model embodiment one；
Fig. 2 is the cross-sectional view of the rotary packing ring of the utility model embodiment one, support frame and wavy spring；
Fig. 3 is the cross-sectional view of the support frame of the utility model embodiment one；
Fig. 4 is the cross-sectional view of the connecting tube of the utility model embodiment one；
Fig. 5 is the rotary packing ring of the utility model embodiment two, support frame cross-sectional view；
Fig. 6 is the cross-sectional view of the rotary packing ring of the utility model embodiment three；
Fig. 7 is the structural representation of the connecting tube of the utility model embodiment four.
Label in figure：1- connecting tubes, the O-rings of 2- first, 3- ball valve shells, 4- ball for ball valve, 5- wavy springs, 6- supports
Skeleton, 6-1- annular hang plates, 6-2- annular horizontal plates, 6-3- annular vertical plates, the O-rings of 7- second, 8- rotary packing rings, 9-
One groove, 10- flanges, 11- bolts, 12- grooves, 13- barbs, 14- ring-shaped liquid holding tanks.
Embodiment
The utility model is further described with reference to the accompanying drawings and examples.
Embodiment one
As shown in Figures 1 to 4, the utility model include connecting tube 1, the first O-ring 2, wavy spring 5, support frame 6,
Second O-ring 7 and rotary packing ring 8, one end of connecting tube 1 are stretched into the ball valve shell 3 of ball valve, and the outer wall of connecting tube 1 sets flange
10 and first groove, flange 10 be fixedly connected with ball valve shell 3 by bolt 11, the first O-ring 2 is located at first groove and ball valve
Rotated between housing 3, in ball valve shell 3 and ball for ball valve 4 is set, one end inwall that connecting tube 1 is stretched into ball valve shell 3 sets recessed
Groove 12, wavy spring 5, support frame 6 and rotary packing ring 8 are arranged in groove 12, and support frame 6 uses stainless steel system
It is located at groove into including integrally formed annular hang plate 6-1, annular horizontal plate 6-2 and annular vertical plate 6-3, wavy spring 5
Between 12 bottom lands and annular vertical plate 6-3, the second O-ring 7 is arranged on by annular hang plate 6-1, annular horizontal plate 6-2 and annular
In the second groove of vertical plate 6-3 compositions, the second O-ring 7 is between support frame 6 and connecting tube 1, the one end of rotary packing ring 8
Face is slidably matched with ball for ball valve 4, the other end of rotary packing ring 8 and annular hang plate 6-1, the annular horizontal of support frame 6
Plate 6-2 matches, and rotary packing ring 8 is made up of PTEE materials；The structure of left side and the structure of right side are similar in Fig. 1, and this is not
Repeat.
One end of connecting tube 1 is inserted in ball valve shell 3 and incited somebody to action by bolt by the utility model in installation process, first
Both fastenings, then install wavy spring 5, support frame 6 and rotary packing ring 8, then exert a force successively in the groove of connecting tube 1
Pressing rotary packing ring 8 inside contracts wavy spring, and now mounting ball valve spheroid 4, makes branch after installing by the tension force of wavy spring 5
Support bone frame 6 and rotary packing ring 8 are held out against on ball for ball valve 4；It is noted that the first O-ring and the second O-ring are distinguished after mounting
Crimp simultaneously fills first groove and second groove；
Sealed between connecting tube 1 and ball valve shell 3 using the first O-ring, it is ensured that the axis of connecting tube 1 with
The centre of sphere of ball for ball valve 4 has preferable registration；In addition, the design of support frame effectively improves the structural strength of rotary packing ring,
Particularly both ramp structure designs, i.e. the sealing area of the second O-ring is bigger, is effectively ensured on the premise of guarantee is durable
The sealing effectiveness of whole device.
Embodiment two
The present embodiment and the structure of embodiment one are essentially identical, unlike：As shown in figure 5, rotary packing ring 8 is close to support
The end face upper end of skeleton 6 sets barb 13, and the end of barb 13 is located in second groove, because rotary packing ring 8 has heat expansion
The phenomenon of shrinkage, this structure is by designing barb 13, and rotary packing ring 8 shrinks and causes and support effectively under prevention low temperature environment
The phenomenon of matching loose between skeleton 6, i.e. barb 13 effectively improve the connection tightness of rotary packing ring 8 and support frame 6, prevention
The phenomenon of leakage, so as to further improve sealing of the present utility model.
Embodiment three
The present embodiment and the structure of embodiment one are essentially identical, unlike：As shown in fig. 6, rotary packing ring 8 and ball valve ball
The end face that body 4 is in contact sets ring-shaped liquid holding tank 14, and this structure when in use, open under liquid communication state, liquid by valve
Body holding tank 14 is some or all of to be in contact with liquid, when the valve is closed, the memory storage partially liq of liquid containing groove 14, has
Lubricant effect in the effect increase rotation process of ball for ball valve 4, improve the service life of rotary packing ring.
Example IV
The present embodiment and the structure of embodiment one are essentially identical, unlike：As shown in fig. 7, first groove 9 is located at flange
10 end faces being in contact with ball valve shell 2, this structure design design first groove 9 on flange 10, i.e., by connecting tube 1 and ball
End face seal is used between valve chest 3, i.e. the size of ball valve shell 3 and thickness is adjusted, and this can shorten whole dynamic sealing
The size of mechanism, it is adapted to different installing spaces to use, while installation effectiveness is high.
Finally illustrate, above example only to illustrate the technical solution of the utility model and unrestricted, this area
Other modifications or equivalent substitution that those of ordinary skill is made to the technical solution of the utility model, without departing from this practicality
The spirit and scope of new technique scheme, it all should cover among right of the present utility model.
Claims (5)
- A kind of 1. dynamic sealing mechanism for ball valve, it is characterised in that：Including connecting tube（1）, the first O-ring（2）, wavy spring （5）, support frame（6）, the second O-ring（7）And rotary packing ring（8）, the connecting tube（1）One end stretch into the ball valve shell of ball valve Body（3）It is interior, the connecting tube（1）Outer wall sets flange（10）And first groove, the flange（10）With ball valve shell（3）Pass through Bolt（11）It is fixedly connected, first O-ring（2）Positioned at first groove and ball valve shell（3）Between, the ball valve shell （3）Interior rotate sets ball for ball valve（4）, the connecting tube（1）Stretch into ball valve shell（3）Interior one end inwall sets groove （12）, the wavy spring（5）, support frame（6）And rotary packing ring（8）It is arranged at groove（12）It is interior, the support frame （6）Including annular hang plate（6-1）, annular horizontal plate（6-2）With annular vertical plate（6-3）, the wavy spring（5）Positioned at recessed Groove（12）Bottom land and annular vertical plate（6-3）Between, second O-ring（7）It is arranged on by annular hang plate（6-1）, annular Level board（6-2）With annular vertical plate（6-3）In the second groove of composition, second O-ring（7）Positioned at connecting tube（1）With Support frame（6）Between, the rotary packing ring（8）End face and ball for ball valve（4）It is slidably matched, the rotary packing ring（8）'s Other end and support frame（6）Annular hang plate（6-1）, annular horizontal plate（6-2）Match.
- A kind of 2. dynamic sealing mechanism for ball valve according to claim 1, it is characterised in that：The rotary packing ring（8） It is made up of PTEE materials.
- A kind of 3. dynamic sealing mechanism for ball valve according to claim 1, it is characterised in that：The rotary packing ring（8） Close to support frame（6）End face upper end set barb 13, the end of the barb 13 is located in second groove 12.
- A kind of 4. dynamic sealing mechanism for ball valve according to claim 1, it is characterised in that：The rotary packing ring（8） With ball for ball valve（4）The end face being in contact sets ring-shaped liquid holding tank 14.
- A kind of 5. dynamic sealing mechanism for ball valve according to claim 1, it is characterised in that：The first groove is located at Flange（10）With ball valve shell（3）The end face being in contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721032026.XU CN207093833U (en) | 2017-08-17 | 2017-08-17 | A kind of dynamic sealing mechanism for ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721032026.XU CN207093833U (en) | 2017-08-17 | 2017-08-17 | A kind of dynamic sealing mechanism for ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207093833U true CN207093833U (en) | 2018-03-13 |
Family
ID=61542086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721032026.XU Active CN207093833U (en) | 2017-08-17 | 2017-08-17 | A kind of dynamic sealing mechanism for ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207093833U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111827922A (en) * | 2020-07-17 | 2020-10-27 | 江苏赛维斯石油科技有限公司 | Drilling-free stage cementing device |
| CN114439965A (en) * | 2021-12-28 | 2022-05-06 | 东风富士汤姆森调温器有限公司 | Ball valve sealing structure for thermal management module |
| CN114667406A (en) * | 2019-12-10 | 2022-06-24 | 舍弗勒技术股份两合公司 | Device for regulating the pressure of a flowing medium using a valve |
-
2017
- 2017-08-17 CN CN201721032026.XU patent/CN207093833U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114667406A (en) * | 2019-12-10 | 2022-06-24 | 舍弗勒技术股份两合公司 | Device for regulating the pressure of a flowing medium using a valve |
| CN111827922A (en) * | 2020-07-17 | 2020-10-27 | 江苏赛维斯石油科技有限公司 | Drilling-free stage cementing device |
| CN114439965A (en) * | 2021-12-28 | 2022-05-06 | 东风富士汤姆森调温器有限公司 | Ball valve sealing structure for thermal management module |
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