CN104100728A - Self-sealing gate valve - Google Patents
Self-sealing gate valve Download PDFInfo
- Publication number
- CN104100728A CN104100728A CN201410386062.0A CN201410386062A CN104100728A CN 104100728 A CN104100728 A CN 104100728A CN 201410386062 A CN201410386062 A CN 201410386062A CN 104100728 A CN104100728 A CN 104100728A
- Authority
- CN
- China
- Prior art keywords
- valve
- self
- valve rod
- flashboard
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 210000004907 gland Anatomy 0.000 claims description 9
- 230000001276 controlling effect Effects 0.000 claims description 6
- 238000010030 laminating Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 230000000149 penetrating effect Effects 0.000 abstract 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process 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
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
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
- 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
-
- 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
-
- 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 invention discloses a self-sealing gate valve. The self-sealing gate valve is characterized in that a gate plate assembly comprises a gate plate core, and left and right valve clacks which are arranged at the two sides of the gate plate core in such a manner of moving transversely; the left and right valve lacks are matched with left and right valve seats, respectively; flanges are arranged at the left and right ends of the gate plate core, respectively; the left and right valve clacks cover the flanges at the two ends, respectively, and the covering surfaces of the left and right valve clacks are connected with the back sides of the flanges by use of elastic devices; a left sealing ring and a right sealing ring are arranged at the fit portions of the left and right valve clacks with the outer circles of the flanges at the two ends, respectively; an adjusting rod horizontally penetrates through the gate plate and is connected with a valve rod; the valve rod is capable of controlling the adjusting rod to move from side to side so as to drive the left and right valve clacks to move; water inlet holes are formed in the left and right valve clacks in positions corresponding to the port of the adjusting rod; a water flow channel penetrating from left to right is formed in the gate plate core; a sealing piece capable of sealing the water inlet and the penetrating hole is arranged on the adjusting rod. The self-sealing gate valve is reasonable in structure, low in gate plate assembly abrasion and good in sealing effect.
Description
Technical field
The present invention relates to a kind of improvement invention of valve, relate in particular to a kind of improvement invention of self-seal type gate valve.
Background technique
Gate valve is a kind of valve conventional in pipe-line system, and it is for connecting or block the flowing medium of pipe-line system.The open-shut device of gate valve is flashboard assembly, the opening and closing of gate valve are that the conversion by the upper-lower position of flashboard assembly realizes, yet flashboard assembly is in the process moving up and down, and its sealing surface and valve seat friction easily occur and damage, thereby affect the sealing effect of gate valve; And general valve seat is all hard material and makes, be therefore hard sealing with flashboard assembly, so sealing effect is not good enough.Gate valve of the prior art also utilizes flowing medium to realize between the sealing surface of flashboard assembly and valve seat, to form selfsealings to the pressure of flashboard assembly conventionally, yet 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 is to overcome the deficiencies in the prior art, provides that a kind of rational in infrastructure, flashboard assembly wearing and tearing are little, the self-seal type gate valve of good sealing effect.
In order to solve the problems of the technologies described above, the present invention adopts following technological scheme to realize: this kind of self-seal type gate valve, comprise valve body, valve gap, valve seat, valve rod and flashboard assembly, 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 is connected with flashboard assembly, and be provided with sealing configuration between valve rod and valve gap, it is characterized in that: described flashboard assembly comprises flashboard core and can transverse shifting be arranged on a left side for flashboard core both sides, right flap, a described left side, right flap respectively with a left side, right valve seat matches, 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 flange, and bag is connected by elastic device between junction and the flange back side, a described left side, right flap and flange excircle joint place, two ends are respectively equipped with left seal ring and right seal ring, described flashboard in-core level is equipped with adjustable lever, described adjustable lever is connected with valve rod, valve rod controllable adjustable bar moves left and right and then drives left and right flap to move along the runner axial direction of valve body, on described left and right flap, corresponding adjustable lever port is provided with water inlet, described flashboard core is provided with the pipelined channel that left and right connects, and described adjustable lever is provided with the Sealing that can seal water inlet and perforating.
Described valve seat is rubber valve seat, and is fixed on valve body by valve seat retainer ring.
Between described left and right flap and flashboard core, be provided with anti-laminating block.
Described gland sidewall is provided with the holding down bolt that prevents that valve rod from rotating, and described valve rod is provided with the valve rod groove matching with holding down bolt.
Described left and right flap is provided with the recess matching with adjustable lever port, and described water inlet is arranged on notched bottoms.
Described elastic device is butterfly spring or Compress Spring.
Described valve rod and flashboard core joint are provided with valve spindle gland, and described valve spindle gland is set on valve rod.
Described valve rod lower end is provided with gear, and described adjustable lever is provided with the tooth bar matching with this gear.
Sealing configuration between described valve rod and valve gap is rubber seal.
Described valve rod is provided with the large handwheel of controlling valve rod knee-action, and the small handwheel that moves left and right of regulating and controlling bar.
The invention has the beneficial effects as follows the self-seal type gate valve after improvement, left and right flap can be arranged on flashboard core both sides by transverse shifting, and while making flashboard assembly upwards draw high or decline, left and right flap can draw in to flashboard core, and it can not worn and not torn with valve seat; Left and right valve seat is rubber valve seat, has realized soft seal, has strengthened the sealing of flap and valve seat laminating; The setting of adjustable lever, can move by manual tune flap, has strengthened the adhesive force between flap and valve seat, and is designed with and relies on hydraulic pressure to realize self-packing structure, makes the gate valve can double seal, has further strengthened 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 closed condition structural representation of the present invention.
Fig. 2 is opening state structural representation of the present invention.
Fig. 3 is the structural representation of flashboard assembly of the present invention.
Fig. 4 is A of the present invention portion enlarged diagram.
Embodiment
Accompanying drawing has represented structure of the present invention, further illustrates by reference to the accompanying drawings its details below again.This self-seal type gate valve, comprises valve body 1, valve gap 2, valve seat, valve rod 3 and flashboard assembly, 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 is connected with flashboard assembly, and be provided with sealing configuration 6 between valve rod 3 and valve gap 2, sealing structure 6 is for being set in the rubber seal on valve rod 3, and described flashboard assembly comprises flashboard core 7 and can transverse shifting be arranged on a left side for flashboard core 7 both sides, right flap 8, 9, and left, right flap 8, 9 are arranged in parallel, a described left side, right flap 8, 9 respectively with a left side, right valve seat 4, 5 size matches, described flashboard core 7 left sides, right two ends are respectively equipped with flange, a described left side, right flap 8, 9 wrap and are connected in two end flange respectively, and bag is connected by elastic device 10 between junction and the flange back side, flap can be moved on flange, (Placement that wherein bag connects is inwardly radially to extend after flap edge extends axially towards flange again, flange is surrounded, its inwardly radially extended surface for bag junction), this elastic device 10 is butterfly spring or Compress Spring, can 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 seal ring 11 and right seal ring 12, and this left and right seal ring 11,12 is set on flashboard core 7, and left and right seal ring 11,12 can be O type circle, the interior level of described flashboard core 7 is equipped with adjustable lever 13, described valve rod 3 lower ends are provided with gear, described adjustable lever 13 is provided with the tooth bar matching with this gear, valve rod 3 rotation controllable adjustable bars 13 move left and right, adjustable lever 13 ports touch 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 adjustable lever 13 ports are provided with water inlet 14, described flashboard core 7 is provided with the pipelined channel 15 that left and right connects, described adjustable lever 13 is provided with the Sealing that can seal water inlet 14 and perforating, the seal is that seal ring sets up two groups separately and is arranged on adjustable lever 13 two ends, when work, can seal water inlet 14 and two perforatings of adjustable lever 13 on flashboard core 7 of a side, and in order to strengthen the sealing to water inlet 14, on a described left side, right flap 8, 9 are provided with the recess 16 matching with adjustable lever 13 ports, described water inlet 14 is arranged on recess 16 bottoms, adjustable lever 13 ports seal recess 16 can realize the sealing to water inlet 14, recess 16 be arranged so that the closing of 13 pairs of water inlets 14 of adjustable lever time better tightness more stable, described gland sidewall is provided with the holding down bolt 23 that prevents that valve rod 3 from rotating, and described valve rod 3 is provided with the valve rod groove 17 matching with holding down bolt 23, the distance that when length of valve rod groove 17 can meet gate valve keying, valve rod 3 moves up and down, described valve seat is rubber valve seat, and is fixed on valve body 1 by valve seat retainer ring 18, has realized the soft seal of valve seat and flap, has strengthened sealing effect, between described left and right flap 8,9 and flashboard core 7, be respectively equipped with anti-laminating block 19, block 19 sets up upper and lower two separately, effectively prevents between flap and flashboard core 7 because bonded to each other being difficult to after being infected with liquid medium separates, described valve rod 3 is provided with valve spindle gland 20 with flashboard core 7 joints, and described valve spindle gland 20 is set on valve rod 3, makes flashboard core 7 more firm with being connected of valve rod 3, described valve rod 3 is provided with the large handwheel 21 of controlling valve rod 3 knee-actions, and the small handwheel 22 that moves left and right of regulating and controlling bar 13.
The present invention in use, gate valve is from being opened to the process of closing: now flashboard assembly is placed in the upper chamber of valve body 1, holding down bolt 23 is in tight condition, holding down bolt 23 front ends are placed in valve rod groove 17 internal lock jail valve rods 3, valve rod 3 is non-rotatable, adjustable lever 13 does not vacantly work to left and right flap 8,9 flashboard core 7 is interior, left and right flap 8,9 state in drawing close to flashboard core 7 under the effect of butterfly spring or Compress Spring, then regulate large handwheel 21 by flashboard assembly decline barrier gate, decline process is left, right flap 8, 9 with left, right valve seat 4, 5 can not rub, unclamp afterwards holding down bolt 23, according to the flow direction of flowing medium, suppose to flow to the right, regulate small handwheel 22 to control the right flap 9 right valve seat 5 of laminating that moves right, adjustable lever 13 right-hand members seal the water inlet of right flap 9, flowing medium enters from the water inlet of left flap 8, pipelined channel 15 on flashboard core 7 enters between right flap 9 and flashboard core 7 right sides, formation is to right flap 9 pressure to the right, make right flap 9 tightr with the laminating of right valve seat 5, strengthened sealing, selfsealings have been realized, and compress left valve seat under the now promotion of left flap by the flowing medium between left flap and flashboard core, or left valve seat can seal, just reached sealing effect.
Claims (10)
1. a self-seal type gate valve, comprise valve body, valve gap, valve seat, valve rod and flashboard assembly, 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 is connected with flashboard assembly, and be provided with sealing configuration between valve rod and valve gap, it is characterized in that: described flashboard assembly comprises flashboard core and can transverse shifting be arranged on a left side for flashboard core both sides, right flap, a described left side, right flap respectively with a left side, right valve seat matches, 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 flange, and bag is connected by elastic device between junction and the flange back side, a described left side, right flap and flange excircle joint place, two ends are respectively equipped with left seal ring and right seal ring, described flashboard in-core level is equipped with adjustable lever, described adjustable lever is connected with valve rod, valve rod controllable adjustable bar moves left and right and then drives left and right flap to move along the runner axial direction of valve body, on described left and right flap, corresponding adjustable lever port is provided with water inlet, described flashboard core is provided with the pipelined channel that left and right connects, and described adjustable lever is provided with the Sealing that can seal water inlet and perforating.
2. self-seal type gate valve as claimed in claim 1, is characterized in that: described valve seat is rubber valve seat, and is fixed on valve body by valve seat retainer ring.
3. self-seal type gate valve as claimed in claim 1, is characterized in that: between described left and right flap and flashboard core, be provided with anti-laminating block.
4. self-seal type gate valve as claimed in claim 1, is characterized in that: described gland sidewall is provided with the holding down bolt that prevents that valve rod from rotating, and described valve rod is provided with the valve rod groove matching with holding down bolt.
5. self-seal type gate valve as claimed in claim 1, is characterized in that: described left and right flap is provided with the recess matching with adjustable lever port, and described water inlet is arranged on notched bottoms.
6. self-seal type gate valve as claimed in claim 1, is characterized in that: described elastic device is butterfly spring or Compress Spring.
7. self-seal type gate valve as claimed in claim 1, is characterized in that: described valve rod and flashboard core joint 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, is characterized in that: described valve rod lower end is provided with gear, and described adjustable lever is provided with the tooth bar matching with this gear.
9. self-seal type gate valve as claimed in claim 1, is characterized in that: the sealing configuration between described valve rod and valve gap is rubber seal.
10. self-seal type gate valve as claimed in claim 1, is characterized in that: described valve rod is provided with the large handwheel of controlling valve rod knee-action, and the small handwheel that moves left and right of regulating and controlling bar.
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 true CN104100728A (en) | 2014-10-15 |
| CN104100728B CN104100728B (en) | 2016-06-08 |
Family
ID=51669135
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 |
|---|---|
| CN (1) | CN104100728B (en) |
Cited By (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 |
| CN106812961A (en) * | 2017-04-07 | 2017-06-09 | 李祥庆 | A kind of band scraper stop valve application method |
| CN106884991A (en) * | 2017-04-07 | 2017-06-23 | 李祥庆 | A kind of band scraper stop 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 |
| CN111022674A (en) * | 2019-12-15 | 2020-04-17 | 永嘉企达知识产权咨询有限公司 | 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 |
| CN114413010A (en) * | 2022-03-29 | 2022-04-29 | 东营恒基石油科技有限公司 | Low-torque flat gate valve capable of being forcedly sealed |
| CN116146731A (en) * | 2023-03-20 | 2023-05-23 | 冈野集团有限公司 | Gate valve |
Citations (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
Patent Citations (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 |
Cited By (13)
| 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 |
| CN106812961A (en) * | 2017-04-07 | 2017-06-09 | 李祥庆 | A kind of band scraper stop valve application method |
| CN106884991A (en) * | 2017-04-07 | 2017-06-23 | 李祥庆 | A kind of band scraper stop 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 |
| CN111022674A (en) * | 2019-12-15 | 2020-04-17 | 永嘉企达知识产权咨询有限公司 | Flat gate valve for oil field |
| 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 |
| CN114413010A (en) * | 2022-03-29 | 2022-04-29 | 东营恒基石油科技有限公司 | Low-torque flat gate valve capable of being forcedly sealed |
| CN116146731A (en) * | 2023-03-20 | 2023-05-23 | 冈野集团有限公司 | Gate valve |
| CN116146731B (en) * | 2023-03-20 | 2023-10-20 | 冈野集团有限公司 | Gate valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104100728B (en) | 2016-06-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104100728A (en) | Self-sealing gate valve | |
| CN204942717U (en) | Diaphragm stop valve | |
| CN203836242U (en) | Butterfly-gate-type throttle valve | |
| CN203906910U (en) | Axial-flow type ball check valve | |
| CN205446771U (en) | Run -in butt clamp disk seat flashboard subassembly and contain slide valve of this disk seat flashboard subassembly | |
| CN202561069U (en) | Self pressure-relieving type double valve plate soft seal butterfly valve | |
| CN107387787A (en) | A kind of combined type low torque flat gate valve | |
| CN206017880U (en) | A kind of Multifunctional stop valve | |
| CN106855127A (en) | Cut-off type core shift butterfly valve | |
| CN203214897U (en) | High-pressure self-sealing check valve with low flow resistance | |
| CN105422938B (en) | A kind of flow control valve | |
| CN203189721U (en) | High-strength all-forging supercritical hydrostatic test blocking valve | |
| CN202990962U (en) | Large-drift-diameter high-pressure flat valve | |
| CN202149228U (en) | Adjusting valve | |
| CN206017794U (en) | A kind of novel cutoff valve | |
| CN207093819U (en) | A kind of elastic sealing gate valve | |
| CN204664604U (en) | The linkage structure of stop valve inside | |
| CN205841818U (en) | A kind of stainless steel sluice valve | |
| CN213017802U (en) | Tightly-sealed gate valve | |
| CN219472787U (en) | Mortar unloading push-pull valve | |
| CN203477376U (en) | Gate valve | |
| CN203453505U (en) | Bidirectional sealing knife gate valve | |
| CN204127219U (en) | Leading type quick opening valve plate | |
| CN203309223U (en) | Check valve element | |
| CN208967051U (en) | A kind of cutoff valve with high sealing performance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
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 |
|
| TR01 | Transfer of patent right | ||
| CB03 | Change of inventor or designer information |
Inventor after: Hong Rongkun Inventor before: Zheng Ziye |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
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 |
|
| TR01 | Transfer of patent right |