CN205937912U - Adjustable spring exerts pressure and seals up disk seat firmly - Google Patents
Adjustable spring exerts pressure and seals up disk seat firmly Download PDFInfo
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- CN205937912U CN205937912U CN201620937799.1U CN201620937799U CN205937912U CN 205937912 U CN205937912 U CN 205937912U CN 201620937799 U CN201620937799 U CN 201620937799U CN 205937912 U CN205937912 U CN 205937912U
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Abstract
An object of the utility model is to provide an adjustable spring exerts pressure and seals up disk seat firmly, including the flange, the lower extreme of flange is connected with the valve body, and the inside of valve body is equipped with the base, it inlays and is equipped with the disk seat just to be equipped with the lower extreme pore wall that is used for through -hole that the medium passes through and this through -hole along the axial in the base the disk seat stretches out this through -hole, and the base overcoat is equipped with the regulation seat that is used for adjusting the sealing load, adjust the seat and link firmly mutually with the flange, along a plurality of spring pressing mechanism of circumferencial direction equipartition in the regulation seat, 3 should be no less than to spring pressing mechanism, confirm according to valve size and sealed demand that valve quantity big more is more. The utility model discloses the manufacturing, the mounting process nature that make hard seal valve such as pottery are good, and convenient, the easy operation of sealing load adjustment is showing improvement result of use and life -span.
Description
Technical field
This utility model belong to valve technology field and in particular to a kind of adjustable spring press hard seal valve seat.
Background technology
Hard sealed valve refers to the valve that sealing surface is made up, its sealing pair of the metal or nonmetallic materials having higher hardness
By sealing surface of seat with flap or flashboard（For sake of convenience, hereinafter referred to as flap）Sealing surface is constituted.By valve opening and closing（Or claim
Switch）The difference of motion mode can be divided into two big class：
The switch of one class valve rotarily drives flap by operating valve lever and moves along valve rod axis direction to complete：Work as valve
The motion of lobe be make its seal towards sealing surface of seat near and finally fit on sealing surface of seat, this be close valve, two
Suitably increasing effort to close again after sealing surface laminating, just can producing larger seal pressure, thus producing preferable sealing effectiveness；
Reversely rotate valve rod, flap then can move round about, and its sealing surface is just lifted away from sealing surface of seat, makes valve opening；Cut
Only valve, gate valve of wedge-type flashboard etc., belong to this kind of valve.
When the switch of another kind of valve is flap motion, drives its sealing surface to against sealing surface of seat and slide, thus completing
The switch of valve.Such as ball valve, parallel double-flashboard gate valve etc..For making to produce certain seal pressure between two sealing surfaces, have
Spring pressure is imposed to flashboard, such as parallel double-flashboard gate valve, single disc pendulum gate valve.But, when on opening flap with valve
When seat medium channel just also will arrange medium channel to position, the arrangement of spring is just difficult to carry out；Have plenty of when valve seat assembles,
Valve seat is made to produce certain seal pressure, such as ball valve to flap.But, for hard seal ball valve, this assembling mode is real
Apply very difficult grasp dynamics：Slightly tight, flap can be made to be stuck；Slightly pine, and difficult to reach sealing effectiveness.
Utility model content
The purpose of this utility model is to provide a kind of adjustable spring hard seal valve seat of pressure.
This utility model adopts the following technical scheme that：
A kind of adjustable spring hard seal valve seat of pressure, including flange, the lower end of flange is connected with valve body, and the inside of valve body sets
There is pedestal, be provided with the through hole passing through for medium in described pedestal vertically and the lower end hole wall of this through hole is embedded with valve seat and institute
State valve seat and stretch out this through hole, outside pedestal, be arranged with the adjustment seat for regulating sealing pressure, described adjustment seat and flange are fixedly connected with,
Along the circumferential direction uniform some spring pressure exerting arrangements in adjustment seat, described spring pressure exerting arrangement extend to pedestal and with pedestal phase top
Connect；Described spring pressure exerting arrangement should be no less than 3, determines, the bigger quantity of valve is more according to valve size and sealing demand.
The above-mentioned adjustable spring hard seal valve seat of pressure, described spring pressure exerting arrangement is by the regulation setting gradually from top to bottom
Screw, spring base and spring are constituted, and are provided with the shoulder hole running through, the upper end diameter of described shoulder hole is less than down in described adjustment seat
The upper end of end diameter and shoulder hole is provided with female thread for installing adjusting screw, the lower end of shoulder hole be used for placing spring base and
Spring, the top phase apical grafting of the bottom of adjusting screw and spring base, the bottom of spring base is connected with the top of spring, spring
The top phase apical grafting of bottom and pedestal.
The above-mentioned adjustable spring hard seal valve seat of pressure, is arranged with covering ring, described outer seal ring and base outside described adjustment seat
Seat is fixedly connected with, and during pressure, described outer seal ring and pedestal can slide axially along adjustment seat.
The above-mentioned adjustable spring hard seal valve seat of pressure, described outer seal ring is radially provided with stop screw, described adjustment seat
Outer wall correspond to and be provided with chute vertically and stop screw stretches in this chute at the position of described stop screw.
The above-mentioned adjustable spring hard seal valve seat of pressure, described flange is provided with envelope at the position of corresponding described adjusting screw
Mouth bolt.
The above-mentioned adjustable spring hard seal valve seat of pressure, described valve seat is ceramic material.
The beneficial effects of the utility model are as follows：
This utility model passes through setting and is uniformly distributed in spring pressure exerting arrangement in adjustment seat, can to pedestal uniform pressure,
Valve seat is pressed（Because of pedestal and valve seat one）, valve seat is pressurized to be moved down and flap cooperation realization sealing（Because pedestal can
Slide along adjustment seat, so pedestal can move down, that is, valve seat moves down）, and and valve seat is ceramic material, Gu realizing hard
Sealing.Spring pressure exerting arrangement is specifically made up of adjusting screw, spring base and spring, and turn adjusting screw makes it move downward, and makes
Obtain spring-compressed, compression deformation of the spring power acts on pedestal, realizes course of exerting pressure, by adjusting the screw-in depth of adjusting screw,
The compression power of spring can be changed, realize adjustable pressure.
This utility model is applied to slide valve, ball valve and cylindrical valve etc., and this several valve possesses following three features：（1）
During unlatching, flap is also equipped with medium channel with the corresponding position of the medium channel of valve seat, valve clack sealing surface is close with valve seat
Front cover constitutes sealing pair, for stoping passage external and internal pressure from transmitting；（2）It is provided simultaneously with flap closing sealing surface and close with valve seat
Front cover constitutes sealing pair, and behind the door, medium channel is blocked shutoff valve by this sealing pair；（3）The shape of sealing surface and flap geometric form
Shape is consistent, can be spherical, cylindrical or planar shaped, also should have the continuous support of similar shape between flap switch seal face
Face.This utility model makes that the manufacture of the hard sealed valve such as pottery, mounting process are good, and seal pressure is easy to adjust, easy to operate, shows
Write and improve using effect and life-span.
Brief description
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the A-A partial sectional view in Fig. 1；
1 valve seat；2 pedestals；3 trip bolts；4 adjustment seats；5 outer seal rings；6 flanges；
7 valve bodies；8 sealing gaskets；9 fastening bolts；10 spring bases；11 sealing bolts；12 regulation spiral shells
Nail；13 sealing rings；14 springs；15 stop screws；16 chutes.
Specific embodiment
In order that technical purpose of the present utility model, technical scheme and beneficial effect are clearer, below in conjunction with the accompanying drawings and
Specific embodiment is further illustrated to the technical solution of the utility model.
As illustrated in fig. 1 and 2, a kind of adjustable spring hard seal valve seat of pressure, including flange 6, fastening is passed through in the lower end of flange 6
Bolt 9 is connected with valve body 7, and the inside of valve body 7 is provided with pedestal 2, is provided with, in described pedestal 2, the through hole passing through for medium vertically
And the lower end hole wall of this through hole is embedded with valve seat 1 and valve seat 1 stretches out this through hole, described valve seat 1 is ceramic material.Pedestal 2 main body
It is cylindrical in shape, its bottom along the circumferential direction stretches out and circularizes epitaxy part, be arranged with close for adjusting outside the cylindrical body of pedestal 2
The adjustment seat 4 of seal pressure, described adjustment seat 4 is fixedly connected with by trip bolt 3 with flange 6, is arranged with covering outside described adjustment seat 4
Ring 5, described adjustment seat 4 and outer seal ring 5 are respectively positioned on the top of annular epitaxy part of pedestal 2 and are respectively positioned on the cylinder of valve body 7 and pedestal 2
Between shape main body, the lower end of outer seal ring 5 is fixedly connected with by trip bolt 3 with this annular epitaxy part, during pressure, described outer seal ring 5
Can slide axially along adjustment seat 4 with pedestal 2, on the one hand the setting of outer seal ring 5 facilitates processing and the installation of adjustment seat 4, separately
On the one hand improve sealing.It is equipped with sealing gasket between flange 6 and valve body 7, flange 6 and adjustment seat 4, outer seal ring 5 and pedestal 2
8；It is equipped with sealing ring 13 between adjustment seat 4 and pedestal 2, adjustment seat 4 and outer seal ring 5, to prevent dielectric leakage, obtain preferably
Sealing effectiveness.Described outer seal ring 5 is radially provided with stop screw 15, and the outer wall of described adjustment seat 4 corresponds to described stop screw
It is provided with chute 16 at 15 position vertically and stop screw 15 stretches in this chute 16, its effect is one side without prejudice to covering
Ring 5 and pedestal 2（Certainly include valve seat 1）Slide along axis, on the other hand limit outer seal ring 5 again and pedestal 2 must not turn around axis
Dynamic, this is conducive to extending the service life of sealing ring 13 and the stability improving sealing effectiveness.Along the circumferential direction equal in adjustment seat 4
Cloth some springs pressure exerting arrangement, described spring pressure exerting arrangement extend to pedestal 2 and with pedestal 2 phase apical grafting.Described spring pressing machine
Structure is made up of the adjusting screw 12 setting gradually from top to bottom, spring base 10 and spring 14, is provided with and runs through in described adjustment seat 4
Shoulder hole, the upper end diameter of described shoulder hole is less than lower end diameter and the upper end of shoulder hole is provided with for installing adjusting screw 12
Female thread, the lower end of shoulder hole is used for placing spring base 10 and spring 14, the top of the bottom of adjusting screw 12 and spring base 10
Phase apical grafting, the bottom of spring base 10 is connected with the top of spring 14, the bottom of spring 14 and pedestal 2 phase apical grafting.Described flange 6
It is provided with sealing bolt 11, the bottom footpath for installing the screwed hole of sealing bolt 11 is big at the position of the described adjusting screw 12 of upper correspondence
In the external diameter of the screwed hole for installing adjusting screw 12, such adjusting screw 12 can be entered by sealing the screwed hole of bolt 11
Row is installed and is adjusted, very convenient.
It should be noted last that：Above-described embodiment is merely to illustrate and unrestricted the technical solution of the utility model, appoints
Equivalent and the modification without departing from this utility model spirit and scope or local replacement that what is carried out to this utility model, it is equal
Should cover within this utility model protective scope of the claims.
Claims (6)
1. a kind of adjustable spring hard seal valve seat of pressure, including flange, the lower end of flange is connected with valve body, and the inside of valve body is provided with
Pedestal it is characterised in that：It is provided with the through hole passing through for medium in described pedestal vertically and the lower end hole wall of this through hole is embedded
Have valve seat and described valve seat stretch out this through hole, outside pedestal, be arranged with the adjustment seat for regulating sealing pressure, described adjustment seat with
Flange is fixedly connected with, along the circumferential direction uniform some spring pressure exerting arrangements in adjustment seat, and described spring pressure exerting arrangement extends to pedestal
And with pedestal phase apical grafting.
2. adjustable spring according to claim 1 press hard seal valve seat it is characterised in that：Described spring pressure exerting arrangement by
The adjusting screw, spring base and the spring that set gradually from top to bottom are constituted, and are provided with the shoulder hole running through in described adjustment seat, described
The upper end that the upper end diameter of shoulder hole is less than lower end diameter and shoulder hole is provided with female thread for installing adjusting screw, shoulder hole
Lower end be used for placing spring base and spring.
3. adjustable spring according to claim 2 press hard seal valve seat it is characterised in that：It is arranged with outside described adjustment seat
Outer seal ring, described outer seal ring is fixedly connected with pedestal, and during pressure, described outer seal ring and pedestal can slide axially along adjustment seat.
4. adjustable spring according to claim 3 press hard seal valve seat it is characterised in that：Described outer seal ring radially sets
Limited location screw, the outer wall of described adjustment seat corresponds to and is provided with chute and stop screw vertically at the position of described stop screw
Stretch in this chute.
5. adjustable spring according to claim 2 press hard seal valve seat it is characterised in that：Corresponding described on described flange
It is provided with sealing bolt at the position of adjusting screw.
6. adjustable spring according to claim 1 press hard seal valve seat it is characterised in that：Described valve seat is ceramic material
Matter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620937799.1U CN205937912U (en) | 2016-08-25 | 2016-08-25 | Adjustable spring exerts pressure and seals up disk seat firmly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620937799.1U CN205937912U (en) | 2016-08-25 | 2016-08-25 | Adjustable spring exerts pressure and seals up disk seat firmly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205937912U true CN205937912U (en) | 2017-02-08 |
Family
ID=57952117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620937799.1U Active CN205937912U (en) | 2016-08-25 | 2016-08-25 | Adjustable spring exerts pressure and seals up disk seat firmly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205937912U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854777A (en) * | 2019-04-02 | 2019-06-07 | 北京宇航推进科技有限公司 | A kind of multifunction combined ball valve and control method of liquid-propellant rocket engine |
-
2016
- 2016-08-25 CN CN201620937799.1U patent/CN205937912U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854777A (en) * | 2019-04-02 | 2019-06-07 | 北京宇航推进科技有限公司 | A kind of multifunction combined ball valve and control method of liquid-propellant rocket engine |
| CN109854777B (en) * | 2019-04-02 | 2024-02-13 | 北京宇航推进科技有限公司 | Multifunctional combined ball valve of liquid rocket engine and control method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |