CN209213028U - A kind of control valve e molded line sealing structure - Google Patents
A kind of control valve e molded line sealing structure Download PDFInfo
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- CN209213028U CN209213028U CN201821817752.7U CN201821817752U CN209213028U CN 209213028 U CN209213028 U CN 209213028U CN 201821817752 U CN201821817752 U CN 201821817752U CN 209213028 U CN209213028 U CN 209213028U
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- spool
- sealing
- sealing lip
- sleeve
- energy
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Abstract
The utility model provides a kind of control valve e molded line sealing structure, including spool, sleeve and seal assembly, sleeve is sheathed on spool outer wall face, spool is slidably connected with sleeve, spool outer wall face upper end is circumferentially arranged with annular groove, seal assembly includes pressing plate and e type sealing ring, e type sealing ring includes sealing lip and energy-storaging spring, sealing lip and energy-storaging spring are all made of high-temperature wearable material, energy-storaging spring is that annular is embedded in annular groove, sealing lip is set around on energy-storaging spring, sealing lip Open Side Down setting, pressing plate is set to above sealing lip and is attached at sleeve lining face for controlling sealing lip, pressing plate is fixedly connected with spool.A kind of control valve provided by the utility model e molded line sealing structure, using the sealing structure of the control valve of spool, sleeve and seal assembly composition, e type sealing lip is dexterously combined with energy-storaging spring, formation has many advantages, such as that corrosion resistance and erosion resistance, self-lubrication are good, good airproof performance, elasticity is good, can repeatedly repair use.
Description
Technical field
The utility model relates to control valve technical fields, more particularly to a kind of control valve e molded line sealing structure.
Background technique
As shown in figure 4, a kind of traditional piston packing ring sealing structure, flows through the medium master of control 1 balance hole of valve core
If being sealed by two layers of piston packing ring 11.Its advantage is that can be used for worst hot case, disadvantage is can only in each groove
One piston packing ring 11 is installed, indentation, there leakage rate is big, and control valve runs 11 poor flexibility of piston packing ring after a period of time, meeting
Cause spool 1 stuck or pulls sleeve 2.
As shown in figure 5, traditional another kind is using 12 sealing structure of balanced seal circle made of teflon material.Its advantage
It is good seal performance, it is stuck or pull sleeve 2 not will lead to spool 1, the disadvantage is that not being suitable for higher temperature.
In the prior art, lack under worst hot case, there are high, anti-jamming, the anti-internals of leakage class to pull, can repeatedly repair
The control valve sealing structure of the features such as use.
Utility model content
The technical problem to be solved by the utility model is in order to overcome the shortcomings in the prior art, the utility model mentions
For a kind of control valve e molded line sealing structure.
The utility model solves its technical problem technical solution to be taken: a kind of control valve e molded line sealing knot
Structure, including spool, sleeve and seal assembly, the sleeve are sheathed on the spool outer wall face, the spool and the sleeve
It being slidably connected, circumferentially arranged with annular groove, the seal assembly includes pressing plate and e type sealing ring for spool outer wall face upper end,
The e type sealing ring includes sealing lip and energy-storaging spring, and the sealing lip and energy-storaging spring are all made of high-temperature wearable material, described
Energy-storaging spring is that annular is embedded in the annular groove, and the sealing lip is set around on the energy-storaging spring, and the sealing lip is opened
Mouth is down-set, and the pressing plate is set to above the sealing lip and is attached at the sleeve lining face for controlling the sealing lip
On, the pressing plate is fixedly connected with the spool.
Spool is reciprocating in hub internal bore, controls the switch of control valve, e type sealing ring is by sealing lip and accumulation of energy bullet
Spring composition, sealing lip are designed as e type shape, and procheilon is tightly attached to sleeve lining after compression, is at this time linear sealing, due to area is small
Easily sealing, can prevent it is stuck, pull sleeve, sealing lip and energy-storaging spring use high-temperature wearable material, be applicable to 1000 DEG C with
On operating condition, the e type sealing ring being made of sealing lip and energy-storaging spring has wider deformation range, the installation of e type sealing ring
Direction is determined that sealing lip is open towards medium direction, and control valve is high in and low out by the flow direction of control valve, has leakage class
High, anti-jamming, anti-internals pull, can repeatedly repair the features such as use.
Further, the sealing lip is made of Alloy718 alloy material, the sealing lip surface plating be equipped with gold, silver,
Nickel or the good material of copper uniform wearability, corrosion resistance, self-lubricating property, the energy-storaging spring are made of Alloy718 material.
Sealing lip material use Alloy718 alloy and overlay coating, Alloy718 have high tensile strength, fatigue strength, resist it is compacted
Intensity adjustable, breaking strength and heat resistance, are applicable to 1000 DEG C or more of operating condition, and coating material is that gold, silver, nickel or copper are wear-resisting
The fabulous material of property, corrosion resistance, self-lubricating property, can enhance the wearability, self-lubrication and leakproofness of sealing lip, further
Improve the sealing of the structure, anti-jamming, anti-internals pull performance, energy-storaging spring also uses Alloy718 material, has fabulous
Elasticity, sealing lip deformation failure can be prevented, meanwhile, carried out strutting deformation by pressure medium rear support sealing lip, the deformation with
Pressure medium is directly proportional, and control valve under different medium pressure can be made to have good leakproofness.
It further, further include valve seat, the sleeve is set to above the valve seat, and the sleeve lateral wall is equipped with multiple first
Balance hole, the spool are equipped with several second balance holes, and second balance hole is axially arranged along the spool, the pressing plate
It is equipped with the through-hole cooperated with second balance hole, control valve is in full when the valve core sealed cover is overlapped with sealing surface of seat
Off status.Spool is equipped with the second balance hole, and the leakproofness between spool and valve seat, spool and sleeve codetermines control valve
Leakage class, spool is reciprocating in hub internal bore, controls the switch of control valve.
Further, the pressing plate is equipped with the annular lug cooperated in the e type sealing ring.Annular lug is for compressing e
Type sealing ring has wider deformation range by the e type sealing ring that sealing lip and energy-storaging spring form, if if close after being used for a long time
Envelope property is declined, then only needs suitably to reduce annular groove depth, and sealing performance can go up rapidly after increasing decrement, is supported multiple
Maintenance uses.
The beneficial effects of the utility model are: a kind of control valve provided by the utility model e molded line sealing structure, uses
The sealing structure of the control valve of spool, sleeve and seal assembly composition, e type sealing lip is dexterously combined with energy-storaging spring, shape
At have many advantages, such as corrosion resistance and erosion resistance, self-lubrication are good, good airproof performance, elasticity is good, repeatedly can repair use, it can be achieved that control
Valve high-leakage grade processed, anti-jamming, anti-internals pull, are used multiple times the features such as maintenance.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of the best embodiment of the utility model；
Fig. 2 is the enlarged diagram of A in Fig. 1；
Fig. 3 is the working state schematic representation of e type sealing ring；
Fig. 4 is traditional piston packing ring sealed structural schematic diagram；
Fig. 5 is traditional balanced seal circle sealed structural schematic diagram.
In figure: 1, spool, 2, sleeve, 3, pressing plate, 4, sealing lip, 5, energy-storaging spring, 6, valve seat, the 7, first balance hole, 8,
Second balance hole, 9, through-hole, 10, bolt, 11, sealing ring, 12, balanced seal circle.
Specific embodiment
The utility model is described in detail presently in connection with attached drawing.This figure is simplified schematic diagram, only in a schematic way
Illustrate the basic structure of the utility model, therefore it only shows composition related with the utility model.
As shown in Figure 1-3, a kind of control valve of the utility model e molded line sealing structure, including spool 1, sleeve 2 and close
Sealing assembly, the sleeve 2 are sheathed in 1 outside wall surface of spool, and the spool 1 is slidably connected with the sleeve 2, the spool
Circumferentially arranged with annular groove, the seal assembly includes pressing plate 3 and e type sealing ring, the e type sealing ring packet for 1 outside wall surface upper end
Sealing lip 4 and energy-storaging spring 5 are included, the sealing lip 4 and energy-storaging spring 5 are all made of high-temperature wearable material, and the energy-storaging spring 5 is
Annular is embedded in the annular groove, and the sealing lip 4 is set around on the energy-storaging spring 5, and Open Side Down sets for the sealing lip 4
It sets, the pressing plate 3 is set to above the sealing lip 4 and is attached at 2 inner wall of sleeve, institute for controlling the sealing lip 4
Pressing plate 3 is stated to be fixedly connected using multiple bolts 10 with the spool 1, e type sealing ring tightness is declined after long-time service,
Bolt 10 then need to be only tightened, suitably reduction annular groove depth, that is, increase the decrement of e type sealing ring, sealed after increasing decrement
Performance can go up rapidly, support that repeatedly maintenance uses.
The sealing lip 4 is made of Alloy718 alloy material, and 4 surface of the sealing lip plating is equipped with copper, and copper has resistance to
The feature that mill property is good, corrosion resistance is strong, self-lubricating property is good, the energy-storaging spring 5 are made of Alloy718 material.
It further include valve seat 6, the sleeve 2 is set to 6 top of valve seat, and it is flat that 2 side wall of sleeve is equipped with multiple first
Weighing apparatus hole 7, the spool 1 are equipped with several second balance holes 8, and second balance hole 8 is described along the axial setting of the spool 1
Pressing plate 3 is equipped with the through-hole 9 cooperated with second balance hole 8, and 1 sealing surface of spool is overlapped time control with 6 sealing surface of valve seat
Valve processed is in full off state.
The pressing plate 3 is equipped with the annular lug cooperated in the e type sealing ring.
Arrow indicates 4 deformation direction of sealing lip in Fig. 3.
It is enlightenment, through the above description, relevant work with the above-mentioned desirable embodiment according to the utility model
Personnel can carry out various changes and amendments in without departing from the scope of the utility model completely.This item utility model
Technical scope is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (4)
1. a kind of control valve e molded line sealing structure, it is characterised in that: described including spool (1), sleeve (2) and seal assembly
Sleeve (2) is sheathed in the spool (1) outside wall surface, and the spool (1) is slidably connected with the sleeve (2), the spool (1)
Circumferentially arranged with annular groove, the seal assembly includes pressing plate (3) and e type sealing ring, the e type sealing ring packet for outside wall surface upper end
Sealing lip (4) and energy-storaging spring (5) are included, the sealing lip (4) and energy-storaging spring (5) are all made of high-temperature wearable material, the storage
Energy spring (5) is that annular is embedded in the annular groove, and the sealing lip (4) is set around on the energy-storaging spring (5), described close
Setting of sealing that lip (4) Open Side Down, the pressing plate (3) are set to above the sealing lip (4) and are sticked for controlling the sealing lip (4)
In on the sleeve (2) inner wall, the pressing plate (3) is fixedly connected with the spool (1).
2. a kind of control valve e molded line sealing structure as described in claim 1, it is characterised in that: the sealing lip (4) uses
Alloy718 alloy material is made, sealing lip (4) surface plating be equipped with gold, silver, nickel or copper uniform wearability, corrosion resistance, from
The good material of greasy property, the energy-storaging spring (5) are made of Alloy718 material.
3. a kind of control valve e molded line sealing structure as described in claim 1, it is characterised in that: further include valve seat (6), institute
Sleeve (2) are stated above the valve seat (6), sleeve (2) side wall is equipped with multiple first balance holes (7), the spool
(1) several second balance holes (8) are equipped with, second balance hole (8) is axially arranged along the spool (1), the pressing plate (3)
It is equipped with the through-hole (9) cooperated with second balance hole (8), when spool (1) sealing surface is overlapped with valve seat (6) sealing surface
Control valve is in full off state.
4. a kind of control valve e molded line sealing structure as described in claim 1, it is characterised in that: the pressing plate (3) is equipped with
In the annular lug of e type sealing ring cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821817752.7U CN209213028U (en) | 2018-11-06 | 2018-11-06 | A kind of control valve e molded line sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821817752.7U CN209213028U (en) | 2018-11-06 | 2018-11-06 | A kind of control valve e molded line sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209213028U true CN209213028U (en) | 2019-08-06 |
Family
ID=67458624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821817752.7U Active CN209213028U (en) | 2018-11-06 | 2018-11-06 | A kind of control valve e molded line sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209213028U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4296548A1 (en) * | 2022-06-22 | 2023-12-27 | Flühs Drehtechnik GmbH | Upper part of a valve |
-
2018
- 2018-11-06 CN CN201821817752.7U patent/CN209213028U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4296548A1 (en) * | 2022-06-22 | 2023-12-27 | Flühs Drehtechnik GmbH | Upper part of a valve |
| WO2023247144A1 (en) * | 2022-06-22 | 2023-12-28 | Flühs Drehtechnik GmbH | Valve upper part |
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