CN208686993U - A kind of ball valve with valve body self-sealing mechanism - Google Patents
A kind of ball valve with valve body self-sealing mechanism Download PDFInfo
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- CN208686993U CN208686993U CN201821149116.1U CN201821149116U CN208686993U CN 208686993 U CN208686993 U CN 208686993U CN 201821149116 U CN201821149116 U CN 201821149116U CN 208686993 U CN208686993 U CN 208686993U
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- valve
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Abstract
The utility model discloses a kind of ball valves with valve body self-sealing mechanism, including valve body, sphere, the driving unit of valve rod and driving stem, valve body is formed by fixedly connecting by left valve barrel and right valve barrel, valve seat is equipped in valve body, accommodating cavity is provided on valve body, sphere is placed in accommodating cavity, slideway is provided between left valve barrel and right valve barrel, the side of slideway is connected with accommodating cavity, slideway is built-in with the positioning step being fixedly connected with left valve barrel, the side of positioning step is in being provided with the second molding filler in slideway, the side of second molding filler is provided with can carry out mobile gasket in slideway, the abutting inclined-plane to contact with each other is provided between gasket and the second molding filler.The utility model has the following beneficial effects: the gasket in this ball valve is connected with accommodating cavity, and then can realize self-sealing according to cavity pressure size, to improve the sealing effect of left valve barrel Yu right valve barrel junction.
Description
Technical field
The utility model relates to a kind of ball valve, in particular to a kind of ball valve with valve body self-sealing mechanism.
Background technique
Currently, ball valve is widely used in petroleum refining, long-distance transport pipes, chemical industry, papermaking, pharmacy, water conservancy, electric power, city
The industries such as political affairs, steel occupy very important status in national economy.It has the movement being rotated by 90 °, and faucet body is ball
Body has circular through hole or channel to pass through its axis.
Notification number is that the Chinese patent of CN203009892U discloses a kind of Split ball valve, which includes valve body, ball
The driving unit of body, valve rod and driving stem, valve body are formed by fixedly connecting by left valve barrel and right valve barrel, and sphere is close to valve rod
End face is equipped with a groove, and valve rod lower end is fixed in groove, is equipped with the valve seat made of elastic material in valve body, left valve barrel with
It is provided with the mounting groove of built-in gasket between right valve barrel, is provided with accommodating cavity on valve body, sphere is placed in accommodating cavity.The ball valve
By gasket to realize the leakproofness between left valve barrel and right valve barrel.But side of the gasket of this ball valve in addition to sealing surface
It in interference fit in mounting groove, is not directly contacted with the fluid in accommodating cavity, causes gasket big according to cavity pressure
It is small and realize self-sealing, have much room for improvement.
Utility model content
A kind of gasket the purpose of the utility model is to provide ball valve with valve body self-sealing mechanism, in this ball valve
It is connected with accommodating cavity, and then can realizes self-sealing according to cavity pressure size, improves left valve barrel and right valve barrel junction
Sealing effect.
The above-mentioned technical purpose of the utility model have the technical scheme that it is a kind of with valve body from close
The ball valve of sealing mechanism, the driving unit including valve body, sphere, valve rod and driving stem, the valve body is by left valve barrel and right valve
Body is formed by fixedly connecting, and valve seat is equipped in the valve body, is provided with accommodating cavity on the valve body, the sphere is placed in accommodating cavity
It is interior, slideway is provided between the left valve barrel and right valve barrel, the side of the slideway is connected with accommodating cavity, built in the slideway
There is a positioning step being fixedly connected with left valve barrel, the side of the positioning step is in being provided with the second molding filler, institute in slideway
The side for stating the second molding filler is provided with can carry out mobile gasket in slideway, the gasket and the second molding filler
Between be provided with the abutting inclined-plane to contact with each other.
The utility model is further arranged to: it is provided with the first molding filler between the valve body and valve rod, described first
The gland for compressing the first molding filler is provided with above molding filler, the gland is far from the first molding filler
Side, which is provided with, drives gland to execute the adjusting nut for compressing the first molding filler operation, and described first forms under filler
Side is provided with Packing seat, and the contact surface between the Packing seat and the first molding filler is inclined-plane.
The utility model is further arranged to: the section of the second molding filler is trapezoidal, so that described second forms
The contact surface of filler and gasket includes inclined-plane and horizontal plane.
The utility model is further arranged to: the limit of restricted adjusting nut displacement is arranged in the side of the adjusting nut
Pad.
The utility model is further arranged to: the gasket includes metallic framework and can coat metallic framework
Rubbery sealed body, the rubbery sealed body close to the setting of the side of left valve barrel there are two the outer seal lip that is parallel to each other, two
The outer seal lip all respectively with two end faces of rubbery sealed body are smooth is aligned.
The utility model is further arranged to: being formed a groove between two outer seal lips, is applied in the groove
It is wiped with lubricating grease.
The utility model is further arranged to: several are distributed with along central symmetry in the both sides of the face of the rubbery sealed body
Reinforcing rib.
In conclusion the utility model has the following beneficial effects:
(1) since the positioning step being fixedly connected with left valve barrel is mutually overlapped with right valve barrel, and left valve barrel and right valve barrel are in
Flange bolt acts on lower mutual extrusion and is fixedly connected, so that positioning step closely fits together with right valve barrel.It is positioned
The joint place of step and right valve barrel is first of sealing of left valve barrel and right valve barrel junction；
(2) by setting the second molding filler, the section of the second molding filler is preferably trapezoidal or right angled triangle,
Trapezoidal or right angled triangle two right-angle sides fit with positioning step, right valve barrel respectively, with respectively with positioning step, right valve
The sealing of body forming face, this is sealed for left valve barrel and the second of right valve barrel junction；
(3) the pressure transmitting by the way that slideway is connected with accommodating cavity, when the pressure rise in accommodating cavity, in accommodating cavity
To gasket in slideway is located at, gasket is driven to be moved in slideway.During gasket moves in slideway, it can incite somebody to action
Pressure in accommodating cavity passes to the second molding filler by inclined-plane, promote the second molding filler respectively with positioning step, right valve
Body forms three seals, to guarantee to be applicable under hyperbaric environment；
(4) since gasket can be mobile towards left side, so that gasket mutually can be squeezed and be bonded with left valve barrel end face, so that
Joint place forms the 4th sealing between gasket and left valve barrel, suitable for different pressure demand and pressure environment, to expand
Usage scenario range.
Detailed description of the invention
Fig. 1 is the structure sectional view of embodiment one；
Fig. 2 is the enlarged diagram of a-quadrant in Fig. 1；
Fig. 3 is the enlarged diagram of B area in Fig. 1；
Fig. 4 is the structure sectional view of embodiment two；
Fig. 5 is the enlarged diagram in the region C in Fig. 4；
Fig. 6 is the structural schematic diagram of rubbery sealed body.
Appended drawing reference: 1, valve body；2, sphere；3, valve rod；4, reinforcing rib；5, left valve barrel；6, right valve barrel；7, valve seat；8,
One molding filler；9, gland；10, adjusting nut；11, Packing seat；12, slideway；13, accommodating cavity；14, positioning step；15,
Second molding filler；16, gasket；17, limit pad；18, metallic framework；19, rubbery sealed body；20, outer seal lip；21, recessed
Slot.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Embodiment one:
As depicted in figs. 1 and 2, a kind of ball valve with valve body self-sealing mechanism, including valve body 1, sphere 2, valve rod 3 and
The driving unit of driving stem 3, valve body 1 are formed by fixedly connecting by left valve barrel 5 and right valve barrel 6, and valve seat 7 is equipped in valve body 1.Valve body
Accommodating cavity 13 is provided on 1, sphere 2 is placed in accommodating cavity 13.The first molding filler 8 is provided between valve body 1 and valve rod 3, the
The top of one molding filler 8 is provided with the gland 9 for compressing the first molding filler 8, and gland 9 is far from the first molding filler
8 side is provided with driving gland 9 and executes the adjusting nut 10 for compressing the first molding operation of filler 8；First molding filler 8
Lower section be provided with Packing seat 11, the contact surface between Packing seat 11 and the first molding filler 8 is inclined-plane.
When pressure is low pressure in accommodating cavity 13, by adjusting nut 10 gland is moved downward, and then to the first one-tenth
Type filler 8 is squeezed, so that being preferably bonded at compressed first molding filler 8 and valve rod 3, to guarantee valve rod 3
With the sealing performance of the first molding 8 joint place of filler.When pressure rise in accommodating cavity 13, pressure acts on Packing seat 11, with
The direction for pushing Packing seat 11 towards the first molding filler 8 is moved, due between Packing seat 11 and the first molding filler 8
Contact surface is inclined-plane, so that thrust can resolve into perpendicular to the power on bevel direction according to its inclined-plane and be parallel to bevel direction
On power.Wherein, compression can be carried out to the first molding filler 8 perpendicular to the power on bevel direction and form filler 8 towards first
It is squeezed with the direction of 3 contact surface of valve rod, and then can guarantee valve rod 3 and the first molding filler 8 according to cavity pressure size
The sealing performance of joint place, cavity pressure is higher, then the active force for acting on Packing seat 11 is bigger, seals more reliable.
As shown in figures 1 and 3, slideway 12, the side of slideway 12 and accommodating cavity are provided between left valve barrel 5 and right valve barrel 6
13 are connected.Slideway 12 is built-in with the positioning step 14 being fixedly connected with left valve barrel 5, and the side of positioning step 14 is in slideway 12
It is provided with the second molding filler 15, the side of the second molding filler 15 abuts to be provided with can carry out mobile sealing in slideway 12
Pad 16 is provided with the abutting inclined-plane to contact with each other between gasket 16 and the second molding filler 15.
Due to being fixedly connected between left valve barrel 5 and right valve barrel 6 by middle flange bolt so that left valve barrel 5 and right valve barrel 6 it
Between mutual extrusion, the active force of mutual extrusion may make the positioning step being fixedly connected with left valve barrel 5 14 to second molding fill out
Material 15 is squeezed.Since gasket 16 is limited by left valve barrel 5, right valve barrel 6 respectively in slideway 12, so that the second molding filler
15 can synchronize when being squeezed by positioning step 14 by the reaction force from gasket 16, to ensure that in cavity pressure be low-voltage ring
The leakproofness of left valve barrel 5 and 6 junction of right valve barrel under border.When cavity pressure increases, pressure is made for close in accommodating cavity 13
Packing 16, and then gasket 16 is pushed to be moved in slideway 12 towards 5 direction of left valve barrel, gasket 16 is in mobile process
In can to second molding filler 15 squeeze, due to gasket 16 and second molding filler 15 between contact surface there are oblique
Face, the extruding force for acting on inclined-plane are decomposed into the component in vertical direction and the component in horizontal direction.
Wherein, the component in vertical direction can be pressed down against the second molding filler 15, so that compressed second
Molding filler 15 is preferably bonded with right valve barrel 6, to guarantee the sealing performance of right valve barrel 6 and the second molding 15 joint place of filler；
Component in horizontal direction may make that the direction of the second molding filler 15 towards left valve barrel 5 is squeezed, so that after compression
Second molding filler 15 be preferably bonded with the positioning step 14 at left valve barrel 5, with guarantee left valve barrel 5 and second form filler
The sealing performance of 15 joint places.By the setting on inclined-plane, so that the second molding filler 15 can be respectively simultaneously to left valve barrel 5 and the right side
Valve body 6 is sealed.Cavity pressure is higher, then the active force for acting on gasket 16 is bigger, so that sealing performance is protected.
Since gasket 16 can be mobile towards left side, so that gasket 16 mutually can be squeezed and be bonded with 5 end face of left valve barrel, so that gasket
The sealing performance of joint place is protected between 16 and left valve barrel 5.Simultaneously as gasket 16 can guarantee sealing intensity, it can
Suitable for different pressure demand and pressure environment, so that service life is long, be conducive to keep good sealing effectiveness, expand
Big usage scenario range.
Further, the limit pad 17 that restricted adjusting nut 10 is displaced is arranged in the side of adjusting nut 10.Pass through limit
The effect of pad 17, the side to avoid adjusting nut 10 away from gland 9 are moved, so avoid reduce by first at
Sealing effect of the type filler 8 to valve rod 3.
Further, the material of gasket 16 is preferably that metal material is made.
Further, the section of the second molding filler 15 is preferably trapezoidal, so that the second molding filler 15 and gasket 16
Contact surface include to abut inclined-plane and horizontal plane.Horizontal plane has the function of guidance, in order to which gasket 16 is in slideway 12
Inside moved.
Embodiment two:
As shown in Figure 4, Figure 5 and Figure 6, with embodiment one the difference is that: gasket 16 include metallic framework 18 and
The rubbery sealed body 19 that metallic framework 18 can be coated.Metallic framework 18 and rubbery sealed body 19 are all annular, metal bone
The structural strength of rubbery sealed body 19 can be improved in frame 18, and rubbery sealed body 19 is made to be suitable for different pressure demand and pressure rings
Border, to expand usage scenario range.
For rubbery sealed body 19 close to the setting of the side of left valve barrel 5 there are two the outer seal lip 20 being parallel to each other, two outer close
Envelope lip 20 all respectively with 19 two end faces of rubbery sealed body are smooth is aligned.A groove 21 is formed between two outer seal lips 20,
Lubricating grease is coated in groove 21.Since rubbery sealed body 19 can be moved under hyperbaric environment in slideway 12, lubricating grease
It can prevent outer seal lip 20 from dry grinding problem occurring in the long-term use.When accommodating cavity 13 is in high pressure, rubbery sealed body
19 can be mobile to 5 direction of left valve barrel, so that two outer seal lips 20 are bonded with the extruding of 5 phase of left valve barrel, in rubbery sealed body 19
Two end faces formed linear sealing.At this point, lubricating grease is in 5, two outer seal lips 20 of left valve barrel and 19 shapes of rubbery sealed body
At accommodating chamber in, and then to caused by outer seal lip 20 during avoiding two outer seal lips 20 and left valve barrel 5 from squeezing
Abrasion.
Further, several reinforcing ribs 4 are distributed with along central symmetry in the both sides of the face of rubbery sealed body 19.
Claims (7)
1. a kind of ball valve with valve body self-sealing mechanism, including valve body (1), sphere (2), valve rod (3) and driving stem (3)
Driving unit, the valve body (1) is formed by fixedly connecting by left valve barrel (5) and right valve barrel (6), and valve is equipped in the valve body (1)
Seat (7) is provided with accommodating cavity (13) on the valve body (1), and the sphere (2) is placed in accommodating cavity (13), it is characterized in that: described
It being provided between left valve barrel (5) and right valve barrel (6) slideway (12), the side of the slideway (12) is connected with accommodating cavity (13),
The slideway (12) is built-in with the positioning step (14) being fixedly connected with left valve barrel (5), the side of the positioning step (14) in
The second molding filler (15) is provided in slideway (12), the side of second molding filler (15) is provided with can be in slideway (12)
It inside carries out mobile gasket (16), is provided with supporting of contacting with each other between the gasket (16) and the second molding filler (15)
Connect inclined-plane.
2. a kind of ball valve with valve body self-sealing mechanism according to claim 1, it is characterized in that: the valve body (1) with
It is provided with the first molding filler (8) between valve rod (3), the first molding of compression is provided with above first molding filler (8)
The gland (9) of filler (8), the gland (9) are provided with driving filler pressure far from the side of the first molding filler (8)
It covers (9) and executes the adjusting nut (10) for compressing the first molding filler (8) operation, the lower section setting of first molding filler (8)
Have Packing seat (11), the contact surface between the Packing seat (11) and the first molding filler (8) is inclined-plane.
3. a kind of ball valve with valve body self-sealing mechanism according to claim 1, it is characterized in that: second molding is filled out
Expect that the section of (15) is trapezoidal, so that second molding filler (15) includes to abut inclined-plane with the contact surface of gasket (16)
And horizontal plane.
4. a kind of ball valve with valve body self-sealing mechanism according to claim 2, it is characterized in that: the adjusting nut
(10) the limit pad (17) of restricted adjusting nut (10) displacement is arranged in side.
5. a kind of ball valve with valve body self-sealing mechanism according to claim 3, it is characterized in that: the gasket (16)
Including metallic framework (18) and can be by the rubbery sealed body (19) that metallic framework (18) coat, the rubbery sealed body
(19) there are two the outer seal lip (20) being parallel to each other, two outer seal lips (20) for the side setting close to left valve barrel (5)
All end face is smooth is aligned with rubbery sealed body (19) two respectively.
6. a kind of ball valve with valve body self-sealing mechanism according to claim 5, it is characterized in that: two external seals
A groove (21) is formed between lip (20), is coated with lubricating grease in the groove (21).
7. a kind of ball valve with valve body self-sealing mechanism according to claim 6, it is characterized in that: the rubbery sealed body
(19) several reinforcing ribs (4) are distributed with along central symmetry in both sides of the face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821149116.1U CN208686993U (en) | 2018-07-19 | 2018-07-19 | A kind of ball valve with valve body self-sealing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821149116.1U CN208686993U (en) | 2018-07-19 | 2018-07-19 | A kind of ball valve with valve body self-sealing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208686993U true CN208686993U (en) | 2019-04-02 |
Family
ID=65881613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821149116.1U Active CN208686993U (en) | 2018-07-19 | 2018-07-19 | A kind of ball valve with valve body self-sealing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208686993U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108775416A (en) * | 2018-07-19 | 2018-11-09 | 唐工阀门集团有限公司 | A kind of ball valve with valve body self-sealing mechanism |
| CN112728189A (en) * | 2020-12-23 | 2021-04-30 | 成都日进冶金锻造有限公司 | Canned type integrated form valve body |
-
2018
- 2018-07-19 CN CN201821149116.1U patent/CN208686993U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108775416A (en) * | 2018-07-19 | 2018-11-09 | 唐工阀门集团有限公司 | A kind of ball valve with valve body self-sealing mechanism |
| CN108775416B (en) * | 2018-07-19 | 2024-03-19 | 唐工阀门集团有限公司 | Ball valve with valve body self-sealing mechanism |
| CN112728189A (en) * | 2020-12-23 | 2021-04-30 | 成都日进冶金锻造有限公司 | Canned type integrated form valve body |
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