CN207178761U - A kind of valve base sealing structure of water-carriage system ball-valve dedicated - Google Patents
A kind of valve base sealing structure of water-carriage system ball-valve dedicated Download PDFInfo
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- CN207178761U CN207178761U CN201721097030.4U CN201721097030U CN207178761U CN 207178761 U CN207178761 U CN 207178761U CN 201721097030 U CN201721097030 U CN 201721097030U CN 207178761 U CN207178761 U CN 207178761U
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Abstract
A kind of valve base sealing structure of water-carriage system ball-valve dedicated is the utility model is related to, belongs to valve technology field, including valve body, the spheroid in valve body, the valve component between valve body and spheroid；It is characterized in that：There is Step Shaft on the valve component, the first sealing ring and O-ring seal are provided with the circumference faying face of Step Shaft small end and valve body, O-ring seal is located between the first sealing ring and valve component step surface, the second sealing ring is provided with the circumference faying face of the big end of Step Shaft and valve body, the spring that valve component step surface is axially compressed along valve component is provided with valve body.The beneficial effects of the utility model are：The first sealing ring and the second sealing ring for stopping the debris such as silt particle are set at the both ends of O-ring seal and spring, prevent the debris such as silt particle from being contacted with O-ring seal and spring, avoids O-ring seal from scratching stuck with spring.
Description
Technical field
Valve technology field is the utility model is related to, more particularly to a kind of valve base sealing knot of water-carriage system ball-valve dedicated
Structure.
Background technology
The existing similar devices applied in the projects such as diversion, water power mainly have：One kind equipment drives for all-hydraulic control
Special water power ball valve, main valve are mostly the self control structure of the hard seal valve seat of seal ring piston type, and valve driving needs hydraulic power source, therefore
It is mainly used in water generating project.Second kind equipment is intelligent electric-controlled or hydraulic controlled operation monoblock type fixing ball valve, such production
Product structure is simpler, mostly combined type valve base sealing structure, obtains extensively should in important diversion works, power generation project etc.
With.The problem of this innovation exists primarily directed to the second class monoblock type fixing ball valve is improved, existing for prior art
Problem：The sealing of valve seat and valve body does not design the special structure for stopping the impurity such as silt particle frequently with soft seal circle, valve seat it is soft
Sealing ring is often even scratched and failed by the impurity such as silt particle jam.
Utility model content
The purpose of this utility model is overcome the deficiencies in the prior art, there is provided can effectively obstruct one kind of the impurity such as silt particle
The valve base sealing structure of water-carriage system ball-valve dedicated.
The purpose of this utility model is achieved through the following technical solutions：A kind of valve seat of water-carriage system ball-valve dedicated
Sealing structure, including valve body, the spheroid in valve body, the valve component between valve body and spheroid；It is characterized in that：Institute
Stating has Step Shaft on valve component, the first sealing ring and O-shaped close is provided with the circumference faying face of Step Shaft small end and valve body
Seal, O-ring seal are located between the first sealing ring and valve component step surface, the circumference faying face of the big end of Step Shaft and valve body
On be provided with the second sealing ring, the spring that valve component step surface is axially compressed along valve component is provided with valve body.
Preferably, heap is welded with the hard alloy layer combined with valve component on the valve body.
Preferably, the valve component includes bracing ring, the pressure ring being fixed on bracing ring and is arranged on bracing ring and pressure
Valve seat between ring, the first sphere combined with spherome surface, the second sphere and are respectively equipped with bracing ring, valve seat and pressure ring
Three spheres.
Preferably, the sphere of gap ratio first of second sphere and spherome surface and the spacing of spherome surface it is small by 0.2 ~
0.5mm, the first sphere and the 3rd sphere are same sphere.
Preferably, first sealing ring and the second sealing ring use aramid fiber sealing ring.
Preferably, the section of first sealing ring and the second sealing ring is rectangular.
The beneficial effects of the utility model are：
The first, the first sealing ring and the second sealing ring for stopping the debris such as silt particle are set at the both ends of O-ring seal and spring,
Prevent the debris such as silt particle from being contacted with O-ring seal and spring, avoid O-ring seal from scratching stuck with spring；
2nd, the valve body of valve is frequently with carbon steel, easily scratches and corrosion, the pile-up welding hard alloy layer on sealing surface, effectively
Improve the case hardness and corrosion resistance of sealing surface；
The 3rd, three seals faces is set between valve component and spheroid, described three seals face is respectively the first sphere, the
Two spheres and the 3rd sphere, the second sphere are soft seal, play main seal, the first sphere and the 3rd sphere as hard sealing,
The impurity such as the silt particle of spherome surface attachment can be struck off, avoid the impurity such as silt particle and the second sphere-contact, prevent from scratching the second ball
Face and cause seal failure.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
In figure：1- valve bodies, 2- spheroids, 3- valve components, 4-O type sealing rings, the sealing rings of 5- first, the sealing rings of 6- second,
7- springs, 8- bracing rings, 9- valve seats, 10- pressure rings, the spheres of 11- first, the spheres of 12- second, the spheres of 13- the 3rd, 14A- hard close
Layer gold A, 14B- hard alloy layer B.
Embodiment
The utility model is further described below in conjunction with the accompanying drawings, but the scope of protection of the utility model is not limited to
It is as described below.
As shown in figure 1, a kind of valve base sealing structure of water-carriage system ball-valve dedicated, including valve body 1, in valve body 1
Spheroid 2, the valve component 3 between valve body 1 and spheroid 2；It is characterized in that：There is Step Shaft, platform on the valve component 3
Rank axle small end is located at first with being provided with the first sealing ring 5 and O-ring seal 4, O-ring seal 4 on the circumference faying face of valve body 1
Between sealing ring 5 and the step surface of valve component 3, for O-ring seal 4 at least provided with one, Fig. 1 is that the quantity of O-ring seal 4 is two
Individual embodiment；The big end of Step Shaft is provided with along valve with being provided with the second sealing ring 6 on the circumference faying face of valve body 1 on valve body 1
Holder assembly 3 axially compresses the spring 7 of the step surface of valve component 3.
Heap is welded with the hard alloy layer combined with valve component 3 on valve body 1, such as hard alloy layer A14A and hard in Fig. 1
Alloy-layer B14B, valve body 1 typically use carbon steel material, easily corrode and be scratched, and can cause after sealing surface corrosion and scuffing and let out
Dew, its corrosion resistance and case hardness are remarkably improved in sealed faying face pile-up welding hard alloy layer.
Valve component 3 include bracing ring 8, the pressure ring 10 that is fixed on bracing ring 8 and be arranged on bracing ring 8 and pressure ring 10 it
Between valve seat 9, be respectively equipped with the first sphere 11, the second sphere combined with the surface of spheroid 2 on bracing ring 8, valve seat 9 and pressure ring 10
12 and the 3rd sphere 13；Second sphere 12 and first sphere of gap ratio 11 on the surface of spheroid 2 and the spacing on the surface of spheroid 2 be small by 0.2 ~
0.5mm, the first sphere 11 and the 3rd sphere 13 are same sphere, prevent the first sphere 11, the sphere 11 of the 3rd sphere 13 to the first
The first and sphere-contact of spheroid 2 so that the second sphere 12 can not be compressed fully and seal failure；Adopted between pressure ring 10 and bracing ring 8
Use mode connects for screw.
First sealing ring 5 and the second sealing ring 6 use aramid fiber sealing ring, and aramid fiber sealing ring has good rub resistance
Can, and there is sealing property, play auxiliary seal；The section of first sealing ring 5 and the second sealing ring 6 is rectangular, rectangle
Be advantageous to strike off the impurity such as silt particle.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this
For the technical staff in field, there can be various modifications and variations in the spirit and principles of the utility model, these are equivalent
Modification or replacement etc., are all contained within the scope of protection of the utility model.
Claims (6)
1. a kind of valve base sealing structure of water-carriage system ball-valve dedicated, including valve body, the spheroid in valve body, located at valve body and
Valve component between spheroid；It is characterized in that：There is the circumference of Step Shaft, Step Shaft small end and valve body on the valve component
Be provided with the first sealing ring and O-ring seal on faying face, O-ring seal located at the first sealing ring and valve component step surface it
Between, the second sealing ring is provided with the circumference faying face of the big end of Step Shaft and valve body, is provided with valve body along valve component axial direction
Compress the spring of valve component step surface.
2. the valve base sealing structure of water-carriage system ball-valve dedicated according to claim 1, it is characterised in that：On the valve body
Heap is welded with the hard alloy layer combined with valve component.
3. the valve base sealing structure of water-carriage system ball-valve dedicated according to claim 1, it is characterised in that：The valve seat group
Part includes bracing ring, the pressure ring being fixed on bracing ring and the valve seat being arranged between bracing ring and pressure ring, bracing ring, valve seat and
The first sphere combined with spherome surface, the second sphere and the 3rd sphere are respectively equipped with pressure ring.
4. the valve base sealing structure of water-carriage system ball-valve dedicated according to claim 3, it is characterised in that：Second ball
Small 0.2 ~ the 0.5mm of spacing of the sphere of gap ratio first and spherome surface of face and spherome surface, the first sphere are with the 3rd sphere
Same sphere.
5. the valve base sealing structure of water-carriage system ball-valve dedicated according to claim 1, it is characterised in that：Described first is close
Seal and the second sealing ring use aramid fiber sealing ring.
6. the valve base sealing structure of water-carriage system ball-valve dedicated according to claim 1, it is characterised in that：Described first is close
The section of seal and the second sealing ring is rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721097030.4U CN207178761U (en) | 2017-08-30 | 2017-08-30 | A kind of valve base sealing structure of water-carriage system ball-valve dedicated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721097030.4U CN207178761U (en) | 2017-08-30 | 2017-08-30 | A kind of valve base sealing structure of water-carriage system ball-valve dedicated |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207178761U true CN207178761U (en) | 2018-04-03 |
Family
ID=61739452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721097030.4U Active CN207178761U (en) | 2017-08-30 | 2017-08-30 | A kind of valve base sealing structure of water-carriage system ball-valve dedicated |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207178761U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268525A (en) * | 2018-10-15 | 2019-01-25 | 兰州高压阀门有限公司 | A kind of inflatable valve component |
| CN111486248A (en) * | 2019-12-27 | 2020-08-04 | 安徽铜都流体科技股份有限公司 | Slurry ball valve for shield tunneling machine |
-
2017
- 2017-08-30 CN CN201721097030.4U patent/CN207178761U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268525A (en) * | 2018-10-15 | 2019-01-25 | 兰州高压阀门有限公司 | A kind of inflatable valve component |
| CN111486248A (en) * | 2019-12-27 | 2020-08-04 | 安徽铜都流体科技股份有限公司 | Slurry ball valve for shield tunneling machine |
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