CN209511151U - A kind of spool valve base sealing prevents fluid erosion and impact wear structure - Google Patents
A kind of spool valve base sealing prevents fluid erosion and impact wear structure Download PDFInfo
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- CN209511151U CN209511151U CN201920024063.9U CN201920024063U CN209511151U CN 209511151 U CN209511151 U CN 209511151U CN 201920024063 U CN201920024063 U CN 201920024063U CN 209511151 U CN209511151 U CN 209511151U
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- spool
- valve
- shock resistance
- stepped groove
- resistance face
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Abstract
The utility model discloses a kind of spool valve base sealings to prevent fluid erosion and impact wear structure, including sleeve adjusting valve ontology, and the lower end of the sleeve adjusting valve ontology is equipped with valve body.The structure passes through setting shock resistance face, the first stepped groove and the second stepped groove, fluid is avoided directly to impact sealing surface, impact force is concentrated on into shock resistance face, to avoid sealing surface and be denuded with the part of sealing surface cooperation, extend service life, it ensure that sealing effect, it is ensured that the degree of regulation of valve.
Description
Technical field
The utility model relates to the spool valve base sealings of valve field, in particular to a kind of sleeve adjusting valve to prevent fluid from grinding
Erosion and impact wear structure.
Background technique
Currently, in the use process of sleeve adjusting valve, since flow velocity increases fluid after the throttling of valve seat inner hole, for
The impact force of spool increases, and can impact and denude the part near spool and sealing surface of seat, and neighbouring part is caused to accelerate damage
Bad, service life reduces.
Utility model content
The purpose of this utility model, which is to provide for a kind of spool valve base sealing, prevents fluid erosion and impact wear structure,
The structure avoids fluid from directly impacting sealing surface, by impact force by setting shock resistance face, the first stepped groove and the second stepped groove
The shock resistance face of concentrating on extends service life, protects to avoid sealing surface and denude with the part of sealing surface cooperation
Sealing effect is demonstrate,proved, it is ensured that the degree of regulation of valve.
In order to achieve the above object, the utility model provides following technical solution: a kind of anti-fluid stopping of spool valve base sealing
Body abrasion and impact wear structure, including sleeve adjusting valve ontology, the lower end of the sleeve adjusting valve ontology is equipped with valve body, described
The upper inner cavity of valve body is equipped with valve seat and spool, and the outside of the spool is equipped with sleeve, and the sleeve is equipped with through-hole, the spool
Including upper end connection the interconnecting piece of valve rod, the sealing surface of middle-end, lower end shock resistance face, the shock resistance face downside connection pair
Answer the spool plug of valve seat inner hole, the upside of the valve seat is equipped with continuous first stepped groove and the second stepped groove, and described second
Sealing ring is equipped in stepped groove.
It is further preferred that the shock resistance face is with the angle of spool plug and the angle of sealing surface and spool plug
Obtuse angle, and the angle of shock resistance face and spool plug is less than the angle of sealing surface and spool plug.
It is further preferred that the internal diameter of first stepped groove is greater than or equal to the maximum gauge in shock resistance face.
It is further preferred that the outer diameter of the interconnecting piece is equal to the internal diameter of sleeve.
It is further preferred that the interconnecting piece, sealing surface, shock resistance face and spool plug were integrated.
The utility model has the beneficial effects that the structure is kept away by setting shock resistance face, the first stepped groove and the second stepped groove
Exempt from fluid and directly impact sealing surface, impact force is concentrated on into shock resistance face, thus avoid sealing surface and with sealing surface cooperation
Part is denuded, and service life is extended, and ensure that sealing effect, it is ensured that the degree of regulation of valve.
Detailed description of the invention
Attached drawing 1 is the structural schematic diagram of the utility model.
Attached drawing 2 is the connection schematic diagram of the spool, valve seat and sleeve.
Attached drawing 3 is the structural schematic diagram of the valve seat.
Attached drawing 4 is the structural schematic diagram of the spool.
Attached drawing 5 is the connection schematic diagram of existing spool, valve seat and sleeve.
Marginal data: 1, sleeve adjusting valve ontology；2, valve body；3, valve seat；4, spool；5, sleeve；6, valve rod；21, in upper
Chamber；31, valve seat inner hole；32, the first stepped groove；33, the second stepped groove；34, sealing ring；41, interconnecting piece；42, sealing surface；43,
Shock resistance face；44, spool plug；51, through-hole.
Specific embodiment
We prevent fluid erosion and impact to a kind of spool valve base sealing described in the utility model in conjunction with attached drawing below
Wear structure is described further.
As shown in Fig. 1 to Fig. 5, a kind of spool valve base sealing of the present embodiment prevents fluid erosion and impact wear knot
The lower end of structure, including sleeve adjusting valve ontology 1, the sleeve adjusting valve ontology 1 is equipped with valve body 2, the upper inner cavity 21 of the valve body 2
Equipped with valve seat 3 and spool 4, the outside of the spool 4 is equipped with sleeve 5, and the sleeve 5 is equipped with through-hole 51, and the spool 4 includes
Upper end connect the interconnecting piece 41 of valve rod 6, the sealing surface 42 of middle-end, lower end shock resistance face 43, the downside in the shock resistance face 43
The spool plug 44 of corresponding valve seat inner hole 31 is connected, the upside of the valve seat 3 is equipped with continuous first stepped groove 32 and second-order
Terraced slot 33, second stepped groove 33 is interior to be equipped with sealing ring 34.Angle and sealing of the shock resistance face 43 with spool plug 44
The angle of face 42 and spool plug 44 is obtuse angle, and the angle of shock resistance face 43 and spool plug 44 is less than sealing surface 42 and valve
The angle of core plug 44.The internal diameter of first stepped groove 32 is greater than or equal to the maximum gauge in shock resistance face 43.The connection
The outer diameter in portion 41 is equal to the internal diameter of sleeve 5.The interconnecting piece 41, sealing surface 42, shock resistance face 43 and spool plug 44 are integrated
's.
The spool of existing sleeve adjusting valve and the sealing structure of valve seat are not provided with shock resistance structure, and fluid is passing through valve
When the inner hole of seat, flow velocity increases, and fluid increases the surge P1 of valve core sealed cover, causes the abrasion of valve core sealed cover,
The adjacent component that valve core sealed cover is contacted with valve seat will also result in a degree of erosion corrosion, especially in spool and valve seat aperture
When smaller, the mean flow rate of fluid can be more than hundreds of meters per second, be directly impinging valve core sealed cover, to sealing surface and can close on
Component causes largely to destroy, so that the sealing performance of valve declines, service life is reduced.
Shock resistance 43 is arranged on spool 4, and the first stepped groove is arranged on valve seat for the sleeve adjusting valve of the present embodiment
32 and second stepped groove 33, fluid flow velocity after valve seat inner hole 31 increases, and surge P1 is also increased with it, and is acted on anti-
Shock surface 43 will not directly act on sealing surface 42, to reduce the abrasion of sealing surface 42, simultaneously because being provided with for the
Two stepped grooves 32, fluid impact are not easy the sealing ring acted in the second stepped groove 33 when spool 4 and 3 aperture of valve seat are smaller
34, when spool 4 and 3 aperture of valve seat are larger, impact force is smaller, smaller for the abrasion of sealing ring 34, therefore can be effectively ensured
The sealing structure that sealing surface 42 and sealing ring 34 are formed has good sealing performance and service life, it is ensured that the adjusting essence of valve
Degree.
The protection scope of the utility model is not limited to above embodiments and its transformation.Those skilled in that art are with this implementation
The conventional modification and replacement carried out based on the content of example, belongs to the protection category of the utility model.
Claims (5)
1. a kind of spool valve base sealing prevents fluid erosion and impact wear structure, it is characterised in that: including sleeve adjusting valve sheet
Body, the lower end of the sleeve adjusting valve ontology are equipped with valve body, and the upper inner cavity of the valve body is equipped with valve seat and spool, the spool
Outside is equipped with sleeve, and the sleeve is equipped with through-hole, and the spool includes the sealing of the interconnecting piece, middle-end of upper end connection valve rod
Face, lower end shock resistance face, the downside in the shock resistance face connects the spool plug of corresponding valve seat inner hole, the upside of the valve seat
Equipped with continuous first stepped groove and the second stepped groove, sealing ring is equipped in second stepped groove.
2. a kind of spool valve base sealing according to claim 1 prevents fluid erosion and impact wear structure, feature exists
In the angle and sealing surface of: the shock resistance face and spool plug and the angle of spool plug be obtuse angle, and shock resistance face with
The angle of spool plug is less than the angle of sealing surface and spool plug.
3. a kind of spool valve base sealing according to claim 1 prevents fluid erosion and impact wear structure, feature exists
In: the internal diameter of first stepped groove is greater than or equal to the maximum gauge in shock resistance face.
4. a kind of spool valve base sealing according to claim 1 prevents fluid erosion and impact wear structure, feature exists
In: the outer diameter of the interconnecting piece is equal to the internal diameter of sleeve.
5. a kind of spool valve base sealing according to claim 1 prevents fluid erosion and impact wear structure, feature exists
In: what the interconnecting piece, sealing surface, shock resistance face and spool plug were integrated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920024063.9U CN209511151U (en) | 2019-01-05 | 2019-01-05 | A kind of spool valve base sealing prevents fluid erosion and impact wear structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920024063.9U CN209511151U (en) | 2019-01-05 | 2019-01-05 | A kind of spool valve base sealing prevents fluid erosion and impact wear structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209511151U true CN209511151U (en) | 2019-10-18 |
Family
ID=68199832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920024063.9U Active CN209511151U (en) | 2019-01-05 | 2019-01-05 | A kind of spool valve base sealing prevents fluid erosion and impact wear structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209511151U (en) |
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2019
- 2019-01-05 CN CN201920024063.9U patent/CN209511151U/en active Active
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