CN107842618A - A kind of hydraulic drive two way seal axial-flow type stop valve - Google Patents
A kind of hydraulic drive two way seal axial-flow type stop valve Download PDFInfo
- Publication number
- CN107842618A CN107842618A CN201711263209.7A CN201711263209A CN107842618A CN 107842618 A CN107842618 A CN 107842618A CN 201711263209 A CN201711263209 A CN 201711263209A CN 107842618 A CN107842618 A CN 107842618A
- Authority
- CN
- China
- Prior art keywords
- piston
- valve
- leading screw
- way seal
- flow type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/44—Details of seats or valve members of double-seat valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
- F16K31/504—Mechanical actuating means with screw-spindle or internally threaded actuating means the actuating means being rotable, rising, and having internal threads which co-operate with threads on the outside of the valve body
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
Abstract
The invention provides a kind of hydraulic drive two way seal axial-flow type stop valve, including handwheel, leading screw, piston and valve body, body top is provided with cylinder body, inside is provided with cylinder seat, and leading screw is mobilizable to be arranged in cylinder body, and handwheel is installed in the top of leading screw；Piston is arranged on leading screw bottom, and piston is brought into close contact with inboard wall of cylinder block and can moved up and down with leading screw；The right piston valve element and left piston valve element of energy bidirectional-movement are provided with inside cylinder seat, the confined space that the confined space that left and right piston valve core and cylinder seat are formed is formed with piston and cylinder body is communicated, and hydraulic medium is provided with the confined space communicated；Valve body left and right ends are also respectively provided with valve seat, left and right piston valve core abuts with valve seat, the stop valve can realize that the two-way of liquid medium is dammed, and the present invention is small without bend design liquid medium choked flow, the present invention controls two way seal piston using axle stream mode, so that control operation is more convenient and strength-saving, keying is sensitive reliable, and service life is longer.
Description
Technical field
The invention belongs to stop valve technical field, more particularly, to a kind of hydraulic drive two way seal axial-flow type stop valve.
Background technology
Stop valve is mainly used in damming for liquid medium in control pipeline, in valve as fluid stopping sealing valve is forced
When door is closed, it is necessary to apply pressure to flap, do not leaked with reaching sealing surface；Existing stop valve passes frequently with handwheel, leading screw
Flowing mode carrys out opening/shutting valve, i.e., drives valve stem nut to rotate moved up and down valve rod by rotating handwheel
To realize the keying of valve, this mode of operation moment of torsion required when closing valve is larger, control in-convenience in use, existing skill
Pilot piston type stop valve in art, is all high in and low out when liquid flows through valve seat, and liquid produces siphonage to flap, makes valve
The distance between valve and valve seat reduce, and hinder the circulation of liquid, cause that the pressure drop of liquid is too big, and valve reliability is poor, use
Short life.
The content of the invention
In view of this, the present invention is directed to propose a kind of hydraulic drive two way seal axial-flow type stop valve, to solve existing skill
Technical problem present in art, realize it is two-way dam, reduce flow of media resistance, improve the reliability of stop valve, improve valve
The convenience of control, it is more convenient to realize that two way seal can install and use valve.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of hydraulic drive two way seal axial-flow type stop valve, including handwheel, leading screw, piston and valve body, body top are set
There are cylinder body, inside to be provided with cylinder seat, leading screw is mobilizable to be arranged in cylinder body, and handwheel is installed in the top of leading screw；Piston is arranged on
Leading screw bottom, piston are brought into close contact with inboard wall of cylinder block and can moved up and down with leading screw；Energy bidirectional-movement is provided with inside cylinder seat
The confined space that right piston valve element and left piston valve element, left and right piston valve core and cylinder seat are formed forms close with piston and cylinder body
Close space to communicate, hydraulic medium is provided with the confined space communicated；The left and right both ends of valve body are also respectively provided with valve seat, left and right piston valve
Core abuts with valve seat, for limiting two outer end extreme positions of left and right piston valve core；
Further, leading screw is threadably engaged in feed screw nut, and feed screw nut passes through feed screw nut locking bolt
Fixed lock is on cylinder body；
Further, be additionally provided with slide thrust bearing in leading screw bottom, leading screw by slide thrust bearing to piston power transmission,
Leading screw can realize that low friction rotates with piston, can so realize the up and down motion band piston of leading screw in the vertical direction perpendicular
Nogata only moves up and down upwards, and piston is with inboard wall of cylinder block without relative rotation；
Further, in order to improve the sealing property of each component in cylinder body, between piston and leading screw, piston and inboard wall of cylinder block
Between, it is equipped with some groups of O-ring seals；
Further, the first sealing ring is provided between left and right piston valve core and valve seat, left and right piston valve core abuts valve seat
When it is closed cut-off effect it is more preferable；
Further, the second sealing ring is provided between left and right piston valve core and cylinder seat, improve left and right piston valve core with
Sealing property between cylinder seat, improve the reliability and sealing of left and right reciprocating motion of the pistons；
Further, the plunger lock nut for being locked, plunger lock nut are externally provided with slide thrust bearing
It can realize that low friction rotates with piston；
Further, hydraulic medium is hydraulic oil or pure water；According to pipeline medium corresponding selection, pipeline it is water in use
Shi Caiyong pure water prevents scaling in plunger shaft as hydraulic medium；If pipeline medium is oil, hydraulic oil can be used to make
For hydraulic medium；
Relative to prior art, hydraulic drive two way seal axial-flow type stop valve of the present invention has the advantage that：
The stop valve can realize it is two-way dam, and the present invention without bend design it is small to liquid medium choked flow, the present invention adopts
Two way seal piston is controlled with axle stream mode so that control operation is more convenient and strength-saving, and keying is sensitive reliable, and service life is more
It is long, install and use more convenient.
Brief description of the drawings
The accompanying drawing for forming the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the hydraulic drive two way seal axial-flow type stop valve sectional view described in the embodiment of the present invention.
Description of reference numerals：
1- handwheels；2- leading screws；3- feed screw nuts；4- feed screw nut locking bolts；5- slide thrust bearings；6- pistons；7-O
Type sealing ring；8- plunger lock nuts；9- valve bodies；91- cylinder bodies；91- cylinder seats；10- valve seats；The sealing rings of 11- first；The right work of 12-
Plug valve core；The sealing rings of 13- second；14- left piston valve elements.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than instruction or dark
Show that the device of meaning or element there must be specific orientation, with specific azimuth configuration and operation, thus it is it is not intended that right
The limitation of the present invention.In addition, term " first ", " second " etc. are only used for describing purpose, and it is not intended that instruction or hint phase
To importance or the implicit quantity for indicating indicated technical characteristic.Thus, the feature for defining " first ", " second " etc. can
To express or implicitly include one or more this feature.In the description of the invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
With reference to shown in Fig. 1, a kind of hydraulic drive two way seal axial-flow type stop valve, including handwheel 1, leading screw 2, the and of piston 6
Valve body 9, the top of valve body 9 is provided with cylinder body 91, inside is provided with cylinder seat 91, and leading screw 2 is mobilizable to be arranged in cylinder body 91, and handwheel 1 is solid
It is located at the top of leading screw 2；Piston 6 is arranged on the bottom of leading screw 2, and piston 6 is brought into close contact with the inwall of cylinder body 91 and can be with leading screw about 2
Move back and forth；The right piston valve element 12 and left piston valve element 14 of energy bidirectional-movement, left and right piston valve core are provided with inside cylinder seat 91
Communicate with the confined space that piston 6 and cylinder body 91 are formed with the confined space that cylinder seat 91 is formed, be provided with the confined space communicated
Hydraulic medium；The left and right ends of valve body 9 are also respectively provided with valve seat 10, and left and right piston valve core abuts with valve seat 10, living for limiting left and right
Two outer end extreme positions of plug valve core；Wherein, leading screw 2 is threadably engaged in feed screw nut 3, and feed screw nut 3 passes through silk
The fixed lock of thick stick nut locking bolt 4 is on cylinder body 91；Wherein, slide thrust bearing 5 is additionally provided with the bottom of leading screw 2, leading screw 2 is logical
Crossing slide thrust bearing 5 can realize that low friction rotates to the power transmission of piston 6, leading screw 2 with piston 6；It can so realize leading screw 2 perpendicular
The upward up and down motion band in the vertical direction of piston 6 of Nogata only pumps, and piston 6 is with the inwall of cylinder body 91 without phase
To rotating；Wherein, in order to improve the sealing property of each component in cylinder body 91, between piston 6 and leading screw 2, in piston 6 and cylinder body 91
Between wall, some groups of O-ring seals 7 are equipped with；Wherein, the first sealing ring is provided between left and right piston valve core and valve seat 10
11, it is more preferable that left and right piston valve core abuts closed cut-off effect during valve seat；Wherein, set between left and right piston valve core and cylinder seat 92
There is the second sealing ring 13, improve the sealing property between left and right piston valve core and cylinder seat 92, improve left and right reciprocating motion of the pistons
Reliability, sealing；Wherein, it is externally provided with the plunger lock nut 8 for being locked in slide thrust bearing 5；Wherein, hydraulic pressure
Medium is hydraulic oil or pure water, according to pipeline medium corresponding selection；Prevented when pipeline is water using pure water as hydraulic medium
Only scaling in plunger shaft；If pipeline medium is oil, hydraulic oil can be used as hydraulic medium；
The axial push and draw force that the moment of torsion of leading screw is converted into leading screw by feed screw nut by the present invention drives piston to do reciprocal fortune
It is dynamic, the reciprocating motion of piston, drive left and right piston valve core to do corresponding reciprocating motion by hydraulic drive, to realize two way seal
Open and close；Left and right two valve seat realizes two way seal by pipe flange installation pressing；When this valve is used for pipeline cecum, valve is another
Mounting flange is answered in one end, realizes the good pressing of valve seat；
The stop valve realizes that the two-way of fluid media (medium) is dammed, and the design structure of the invention without bend is hindered liquid medium
Flow small, two way seal piston is controlled using axle stream mode so that operational control is more convenient and strength-saving, opens and closes sensitive reliable, uses
Life-span is longer.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (8)
1. a kind of hydraulic drive two way seal axial-flow type stop valve, it is characterised in that including handwheel, leading screw, piston and valve body, valve
Cylinder seat is provided with provided with cylinder body, inside at the top of body, leading screw is mobilizable to be arranged in cylinder body, and handwheel is installed in the top of leading screw；It is living
Plug is arranged on leading screw bottom, and piston is brought into close contact with inboard wall of cylinder block and can moved up and down with leading screw；Being provided with inside cylinder seat can be double
To the right piston valve element and left piston valve element of motion, the confined space and piston and cylinder body of left and right piston valve core and cylinder seat formation
The confined space of formation is communicated, and hydraulic medium is provided with the confined space communicated；Valve body left and right ends are also respectively provided with valve seat, left,
Right piston valve element abuts with valve seat.
2. a kind of hydraulic drive two way seal axial-flow type stop valve according to claim 1, it is characterised in that leading screw is with spiral shell
Line mode is engaged in feed screw nut, and feed screw nut is by feed screw nut locking bolt fixed lock on cylinder body.
3. a kind of hydraulic drive two way seal axial-flow type stop valve according to claim 1, it is characterised in that at leading screw bottom
End is additionally provided with slide thrust bearing, and leading screw is by slide thrust bearing to piston power transmission.
A kind of 4. hydraulic drive two way seal axial-flow type stop valve according to claim 3, it is characterised in that piston with
Between leading screw, between piston and inboard wall of cylinder block, some groups of O-ring seals are equipped with.
5. a kind of hydraulic drive two way seal axial-flow type stop valve according to claim 1, it is characterised in that left and right
The first sealing ring is provided between piston valve core and valve seat.
6. a kind of hydraulic drive two way seal axial-flow type stop valve according to claim 1, it is characterised in that left and right
The second sealing ring is provided between piston valve core and cylinder seat.
7. a kind of hydraulic drive two way seal axial-flow type stop valve according to claim 3, it is characterised in that pushed away in slip
Power bearing is externally provided with the plunger lock nut for being locked, and is relatively rotated between plunger lock nut and piston.
A kind of 8. hydraulic drive two way seal axial-flow type stop valve according to claim 1, it is characterised in that hydraulic medium
For hydraulic oil or pure water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711263209.7A CN107842618A (en) | 2017-12-05 | 2017-12-05 | A kind of hydraulic drive two way seal axial-flow type stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711263209.7A CN107842618A (en) | 2017-12-05 | 2017-12-05 | A kind of hydraulic drive two way seal axial-flow type stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107842618A true CN107842618A (en) | 2018-03-27 |
Family
ID=61664419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711263209.7A Pending CN107842618A (en) | 2017-12-05 | 2017-12-05 | A kind of hydraulic drive two way seal axial-flow type stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107842618A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594421A (en) * | 2019-09-02 | 2019-12-20 | 江苏盐电阀门有限公司 | Axial-flow type cut-off valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1353573A (en) * | 1963-01-15 | 1964-02-28 | Comp Generale Electricite | Sealing valve with direct passage |
| CN203604679U (en) * | 2013-12-05 | 2014-05-21 | 中亚阀门有限公司 | Hydraulic plunger type parallel opening flat gate valve |
| CN204459217U (en) * | 2014-12-29 | 2015-07-08 | 博纳斯威阀门集团有限公司 | A kind of Double-disc type hydraulic pressure opening valve |
| CN105065700A (en) * | 2015-07-13 | 2015-11-18 | 哈托利海托阀门（杭州）有限公司 | Self-sealing gate valve structure |
| CN106678405A (en) * | 2017-02-10 | 2017-05-17 | 黄继亭 | High-pressure self-sealing valve |
| CN207621381U (en) * | 2017-12-05 | 2018-07-17 | 博纳斯威阀门股份有限公司 | A kind of hydraulic drive two way seal axial-flow type shut-off valve |
-
2017
- 2017-12-05 CN CN201711263209.7A patent/CN107842618A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1353573A (en) * | 1963-01-15 | 1964-02-28 | Comp Generale Electricite | Sealing valve with direct passage |
| CN203604679U (en) * | 2013-12-05 | 2014-05-21 | 中亚阀门有限公司 | Hydraulic plunger type parallel opening flat gate valve |
| CN204459217U (en) * | 2014-12-29 | 2015-07-08 | 博纳斯威阀门集团有限公司 | A kind of Double-disc type hydraulic pressure opening valve |
| CN105065700A (en) * | 2015-07-13 | 2015-11-18 | 哈托利海托阀门（杭州）有限公司 | Self-sealing gate valve structure |
| CN106678405A (en) * | 2017-02-10 | 2017-05-17 | 黄继亭 | High-pressure self-sealing valve |
| CN207621381U (en) * | 2017-12-05 | 2018-07-17 | 博纳斯威阀门股份有限公司 | A kind of hydraulic drive two way seal axial-flow type shut-off valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594421A (en) * | 2019-09-02 | 2019-12-20 | 江苏盐电阀门有限公司 | Axial-flow type cut-off valve |
| CN110594421B (en) * | 2019-09-02 | 2020-11-03 | 江苏盐电阀门有限公司 | Axial-flow type cut-off valve |
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