CN104100728B - A kind of self-seal type gate valve - Google Patents
A kind of self-seal type gate valve Download PDFInfo
- Publication number
- CN104100728B CN104100728B CN201410386062.0A CN201410386062A CN104100728B CN 104100728 B CN104100728 B CN 104100728B CN 201410386062 A CN201410386062 A CN 201410386062A CN 104100728 B CN104100728 B CN 104100728B
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- CN
- China
- Prior art keywords
- valve
- flashboard
- valve rod
- self
- type gate
- 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.)
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- 238000007789 sealing Methods 0.000 claims abstract description 16
- 210000004907 gland Anatomy 0.000 claims description 6
- 238000010030 laminating Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 210000001138 tear Anatomy 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 5
- 230000007423 decrease Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/16—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together
- F16K3/18—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the closure members
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
-
- 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
- F16K31/53—Mechanical actuating means with toothed gearing
- F16K31/54—Mechanical actuating means with toothed gearing with pinion and rack
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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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
- F16K41/04—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
- Sliding Valves (AREA)
Abstract
The present invention discloses a kind of self-seal type gate valve, it is characterized in that: described flashboard always becomes to comprise flashboard core and can laterally move the left and right flap being arranged on flashboard core both sides, described left and right flap mates mutually with left and right valve seat respectively, the described left and right two ends of flashboard core are respectively equipped with flange, described left and right flap wraps respectively and is connected in two end flanges, and be connected by elasticity device between bag junction with the flange back side, described left and right flap and flange excircle joint place, two ends are respectively equipped with left sealing-ring and right sealing-ring; In described flashboard core, level is equipped with governor lever, described governor lever is connected with valve rod, valve rod controllable adjustable bar carries out moving left and right and then drive left and right flap to move, on described left and right flap, corresponding governor lever port is provided with prosopyle, described flashboard core is provided with the through pipelined channel in left and right, and described governor lever is provided with the sealing member that can seal prosopyle and perforating. Present configuration is reasonable, flashboard always becomes little, the good sealing effect that weares and teares.
Description
Technical field
The present invention relates to the improvement of a kind of valve invention, particularly relate to the improvement invention of a kind of self-seal type gate valve.
Background technology
Gate valve is a kind of valve conventional in piping system, and it is for connecting or block the fluid medium in piping system. The opening and closing element of gate valve is that flashboard always becomes, the conversion that the opening and closing of gate valve are the upper-lower positions always become by flashboard realizes, but flashboard always becomes in the process moved up and down, easily there is friction and damage in its trim and valve seat, thus affects the sealing effect of gate valve; And general valve seat is all hard material and makes, therefore always become hard sealing with flashboard, so sealing less effective. Gate valve of the prior art also utilizes pressure that flashboard always becomes by fluid medium to form selfsealings between the trim that realizes flashboard and always become and valve seat usually, but general self sealing structure is simple, weak effect, cannot meet the Working environment that some seal requests are higher.
Summary of the invention
Technical problem to be solved by this invention overcomes the deficiencies in the prior art, it is provided that a kind of rational in infrastructure, flashboard always becomes to wear and tear self-seal type gate valve little, good sealing effect.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme to realize: this kind of self-seal type gate valve, comprise valve body, valve gap, valve seat, valve rod always becomes with flashboard, described valve gap is arranged on valve body top, described valve body top is provided with upper chamber, valve body lower portion is provided with the runner for medium circulation, described valve seat is divided into a left side, right valve seat is arranged in runner, described valve rod enters upper chamber through valve gap and always becomes to be connected with flashboard, and between valve rod and valve gap, it is provided with sealed structure, it is characterized in that: described flashboard always becomes to comprise flashboard core and can laterally move the left side being arranged on flashboard core both sides, right flap, a described left side, right flap respectively with a left side, right valve seat mates mutually, described flashboard core is left, right two ends are respectively equipped with flange, a described left side, right flap wraps respectively and is connected in two end flanges, and be connected by elasticity device between bag junction with the flange back side, a described left side, right flap and flange excircle joint place, two ends are respectively equipped with left sealing-ring and right sealing-ring,In described flashboard core, level is equipped with governor lever, described governor lever is connected with valve rod, valve rod controllable adjustable bar carries out moving left and right and then drive left and right flap to move along the runner axis direction of valve body, on described left and right flap, corresponding governor lever port is provided with prosopyle, described flashboard core is provided with the through pipelined channel in left and right, and described governor lever is provided with the sealing member that can seal prosopyle and perforating.
Described valve seat is rubber valve seat, and is fixed on valve body by valve seat fixed ring.
Anti-laminating block it is provided with between described left and right flap and flashboard core.
Described valve gap sidewall is provided with the tack bolt preventing valve rod from rotating, and described valve rod is provided with the valve rod groove mated mutually with tack bolt.
Described left and right flap is provided with and the recess that governor lever port mates mutually, and described prosopyle is arranged on notched bottoms.
Described elasticity device is compression spring.
Described valve rod and flashboard core junction are provided with valve spindle gland, and described valve spindle gland is set on valve rod.
The lower end of described valve rod is provided with gear, and described governor lever is provided with the tooth bar mated mutually with this gear.
Sealed structure between described valve rod and valve gap is rubber seal.
Described valve rod is provided with the big handwheel of control valve rod knee-action, and the small handwheel that regulating and controlling bar moves left and right.
The invention has the beneficial effects as follows the self-seal type gate valve after improvement, left and right flap can laterally move and be arranged on flashboard core both sides so that when flashboard always becomes upwards to draw high or decline, and left and right flap can draw in flashboard core so that it is can not wear and tear with valve seat; Left and right valve seat is rubber valve seat, it is achieved that soft seal, enhances flap and the stopping property of valve seat laminating; The setting of governor lever, it is possible to manual regulation flap moves, strengthens the adhesive force between flap and valve seat, and is designed with and relies on hydraulic pressure to realize the structure of selfsealings so that gate valve can double seal, further enhance sealing effect.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Fig. 1 is closing condition structural representation of the present invention.
Fig. 2 is opened condition structural representation of the present invention.
Fig. 3 is the structural representation that flashboard of the present invention always becomes.
Fig. 4 is A portion of the present invention enlarged diagram.
Embodiment
Drawings illustrate the structure of the present invention, illustrate that it is about details below more by reference to the accompanying drawings further. this self-seal type gate valve, comprises valve body 1, valve gap 2, valve seat, valve rod 3 always becomes with flashboard, and described valve gap 2 is arranged on valve body 1 top, is bolted, and described valve body 1 top is provided with upper chamber, and valve body 1 bottom is provided with the runner for medium circulation, and described valve seat is divided into a left side, right valve seat 4, 5 are arranged in runner, described valve rod 3 enters upper chamber through valve gap 2 and always becomes to be connected with flashboard, and between valve rod 3 and valve gap 2, it is provided with sealed structure 6, the rubber seal of sealing structure 6 for being set on valve rod 3, described flashboard always becomes to comprise flashboard core 7 and can laterally move the left side being arranged on flashboard core 7 both sides, right flap 8, 9, and left, right flap 8, 9 is arranged in parallel, a described left side, right flap 8, 9 respectively with a left side, right valve seat 4, the size of 5 is mated mutually, and described flashboard core 7 is left, right two ends are respectively equipped with flange, a described left side, right flap 8, 9 respectively bag be connected in two end flanges, and be connected by elasticity device 10 between bag junction with the flange back side, flap can be moved on flange, (wherein wrapping the mode of connection connect is that flap edge radially extends after extending towards flanged shaft again, flange is surrounded, its radially extended surface be bag junction), this elasticity device 10 is butterfly spring or compression spring, it is possible to make a left side, right flap 8, 9 draw close to flashboard core 7,Described left and right flap 8,9 and flange excircle joint place, two ends are respectively equipped with left sealing-ring 11 and right sealing-ring 12, and this left and right sealing-ring 11,12 is set on flashboard core 7, and left and right sealing-ring 11,12 can be O, in described flashboard core 7, level is equipped with governor lever 13, described valve rod 3 times ends are provided with gear, described governor lever 13 is provided with the tooth bar mated mutually with this gear, valve rod 3 rotary steerable governor lever 13 moves left and right, governor lever 13 port touches a left side, right flap 8, 9 and then drive left, right flap 8, 9 move, a described left side, right flap 8, on 9, corresponding governor lever 13 port is provided with prosopyle 14, described flashboard core 7 is provided with the through pipelined channel in left and right 15, described governor lever 13 is provided with the sealing member that can seal prosopyle 14 and perforating, the seal is that sealing-ring sets up two groups separately and is arranged on governor lever 13 two ends, operationally can seal the prosopyle 14 of side and governor lever 13 two perforatings on flashboard core 7, and in order to strengthen the sealing to prosopyle 14, on a described left side, right flap 8, 9 are provided with and the recess 16 that governor lever 13 port mates mutually, described prosopyle 14 is arranged on bottom recess 16, governor lever 13 port seals recess 16 can realize the sealing to prosopyle 14, recess 16 be arranged so that governor lever 13 is more stable to the better tightness during cut out of prosopyle 14, described valve gap sidewall is provided with the tack bolt 23 preventing valve rod 3 from rotating, the valve rod groove 17 that described valve rod 3 is provided with tack bolt 23 phase is mated, and the length of valve rod groove 17 can meet the distance that when gate valve opens and closes, valve rod 3 moves up and down, described valve seat is rubber valve seat, and is fixed on valve body 1 by valve seat fixed ring 18, it is achieved that the soft seal of valve seat and flap, strengthens sealing effect, being respectively equipped with anti-laminating block 19 between described left and right flap 8,9 and flashboard core 7, block 19 sets up upper and lower two pieces separately, effectively prevents between flap with flashboard core 7 because of bonded to each other after being infected with liquid medium and be difficult to separate, described valve rod 3 is provided with valve spindle gland 20 with flashboard core 7 junction, and described valve spindle gland 20 is set on valve rod 3 so that flashboard core 7 is more firm with the connection of valve rod 3, described valve rod 3 is provided with the big handwheel 21 of control valve rod 3 knee-action, and the small handwheel 22 that regulating and controlling bar 13 moves left and right.
The present invention is in use, gate valve is from the process being opened to closedown: now flashboard always becomes to be placed in the upper chamber of valve body 1, tack bolt 23 is in tight condition, tack bolt 23 front end is placed in valve rod groove 17 to lock jail valve rod 3, valve rod 3 is non-rotatable, governor lever 13 is vacant in flashboard core 7 not to work to left and right flap 8,9, and left and right flap 8,9 is in, under the effect of butterfly spring or compression spring, the state drawn close to flashboard core 7, then regulate big handwheel 21 that flashboard always becomes decline close lock, decline process is left, right flap 8, 9 with left, right valve seat 4, 5 can not rub, unclamp tack bolt 23 afterwards, the flow direction according to fluid medium, assume to flow to the right, small handwheel 22 is regulated to control right flap 9 to moving right the right valve seat 5 of laminating, governor lever 13 right-hand member seals the prosopyle of right flap 9, fluid medium enters from the prosopyle of left flap 8, pipelined channel 15 on flashboard core 7 enters between on the right side of right flap 9 and flashboard core 7, formed right flap 9 pressure to the right, make right flap 9 tightr with the laminating of right valve seat 5, strengthen stopping property, achieve selfsealings, and compress left valve seat under the now promotion of left flap by the fluid medium between left flap and flashboard core, or left valve seat can seal, just reach sealing effect.
Claims (10)
1. a self-seal type gate valve, comprise valve body, valve gap, valve seat, valve rod always becomes with flashboard, described valve gap is arranged on valve body top, described valve body top is provided with upper chamber, valve body lower portion is provided with the runner for medium circulation, described valve seat is divided into a left side, right valve seat is arranged in runner, described valve rod enters upper chamber through valve gap and always becomes to be connected with flashboard, and between valve rod and valve gap, it is provided with sealed structure, it is characterized in that: described flashboard always becomes to comprise flashboard core and can laterally move the left side being arranged on flashboard core both sides, right flap, a described left side, right flap respectively with a left side, right valve seat mates mutually, described flashboard core is left, right two ends are respectively equipped with flange, a described left side, right flap wraps respectively and is connected in two end flanges, and be connected by elasticity device between bag junction with the flange back side, a described left side, right flap and flange excircle joint place, two ends are respectively equipped with left sealing-ring and right sealing-ring, in described flashboard core, level is equipped with governor lever, described governor lever is connected with valve rod, valve rod controllable adjustable bar carries out moving left and right and then drive left and right flap to move along the runner axis direction of valve body, on described left and right flap, corresponding governor lever port is provided with prosopyle, described flashboard core is provided with the through pipelined channel in left and right, and described governor lever is provided with the sealing member that can seal prosopyle and perforating.
2. self-seal type gate valve as claimed in claim 1, it is characterised in that: described valve seat is rubber valve seat, and is fixed on valve body by valve seat fixed ring.
3. self-seal type gate valve as claimed in claim 1, it is characterised in that: it is provided with anti-laminating block between described left and right flap and flashboard core.
4. self-seal type gate valve as claimed in claim 1, it is characterised in that: described valve gap sidewall is provided with the tack bolt preventing valve rod from rotating, and described valve rod is provided with the valve rod groove mated mutually with tack bolt.
5. self-seal type gate valve as claimed in claim 1, it is characterised in that: described left and right flap is provided with and the recess that governor lever port mates mutually, and described prosopyle is arranged on notched bottoms.
6. self-seal type gate valve as claimed in claim 1, it is characterised in that: described elasticity device is compression spring.
7. self-seal type gate valve as claimed in claim 1, it is characterised in that: described valve rod and flashboard core junction are provided with valve spindle gland, and described valve spindle gland is set on valve rod.
8. self-seal type gate valve as claimed in claim 1, it is characterised in that: the lower end of described valve rod is provided with gear, and described governor lever is provided with the tooth bar mated mutually with this gear.
9. self-seal type gate valve as claimed in claim 1, it is characterised in that: the sealed structure between described valve rod and valve gap is rubber seal.
10. self-seal type gate valve as claimed in claim 1, it is characterised in that: described valve rod is provided with the big handwheel of control valve rod knee-action, and the small handwheel that regulating and controlling bar moves left and right.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410386062.0A CN104100728B (en) | 2014-08-07 | 2014-08-07 | A kind of self-seal type gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410386062.0A CN104100728B (en) | 2014-08-07 | 2014-08-07 | A kind of self-seal type gate valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104100728A CN104100728A (en) | 2014-10-15 |
| CN104100728B true CN104100728B (en) | 2016-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410386062.0A Active CN104100728B (en) | 2014-08-07 | 2014-08-07 | A kind of self-seal type gate valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN104100728B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455510A (en) * | 2014-11-21 | 2015-03-25 | 苏州福润机械有限公司 | Gate valve |
| CN104712839A (en) * | 2015-01-26 | 2015-06-17 | 侯如升 | Airtight valve |
| CN106884991B (en) * | 2017-04-07 | 2018-10-12 | 李祥庆 | A kind of band scraper shut-off valve |
| CN106812961B (en) * | 2017-04-07 | 2019-04-09 | 李祥庆 | A kind of application method with scraper shut-off valve |
| CN110307354A (en) * | 2019-08-13 | 2019-10-08 | 北京中瑞麦通科技有限公司 | A kind of two-way knife gate valve |
| CN111022674B (en) * | 2019-12-15 | 2021-06-08 | 东营天锦石油科技开发有限公司 | Flat gate valve for oil field |
| CN111120671A (en) * | 2020-01-20 | 2020-05-08 | 宁波真格液压科技有限公司 | Gate valve |
| CN112728144A (en) * | 2020-12-21 | 2021-04-30 | 何松 | Double-sided gate valve |
| CN114413010B (en) * | 2022-03-29 | 2022-06-14 | 东营恒基石油科技有限公司 | Low-torque flat gate valve capable of being forcedly sealed |
| CN116146731B (en) * | 2023-03-20 | 2023-10-20 | 冈野集团有限公司 | Gate valve |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4640302A (en) * | 1986-06-09 | 1987-02-03 | Impey Thomas T | Double disc gate valve |
| EP0544030A1 (en) * | 1991-11-27 | 1993-06-02 | FIRMA VSE VAKUUMTECHNIK GmbH | Vacuum gate valve |
| CN2360687Y (en) * | 1998-12-06 | 2000-01-26 | 永嘉县石化通用机械厂 | Self-compensating parallel double-flashboard sluice valve |
| CN2480635Y (en) * | 2001-05-28 | 2002-03-06 | 周岳建 | Electromagnetic self-regulating valve |
| CN201866285U (en) * | 2010-09-02 | 2011-06-15 | 浙江工贸职业技术学院 | Expanded heat-dissipation double-seal double-plate gate valve |
-
2014
- 2014-08-07 CN CN201410386062.0A patent/CN104100728B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104100728A (en) | 2014-10-15 |
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Effective date of registration: 20171121 Address after: 225400 No. 1 middle Garden Road, Taixing Town Industrial Park, Taixing, Jiangsu Patentee after: Zhu Dinghua Address before: 325115 Zhejiang province Wenzhou city Yongjia County rock head town carp Creek Village Patentee before: Zheng Ziye |
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Inventor after: Hong Rongkun Inventor before: Zheng Ziye |
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Effective date of registration: 20171212 Address after: 300450 Jintang Road, Tanggu, Tianjin Binhai New Area, No. 86 Patentee after: Tianjin Tanggu first valve Co., Ltd. Address before: 225400 No. 1 middle Garden Road, Taixing Town Industrial Park, Taixing, Jiangsu Patentee before: Zhu Dinghua |