CN206754430U - From pressure-releasing type inside screw nonrising stem type gate valve - Google Patents
From pressure-releasing type inside screw nonrising stem type gate valve Download PDFInfo
- Publication number
- CN206754430U CN206754430U CN201720577223.3U CN201720577223U CN206754430U CN 206754430 U CN206754430 U CN 206754430U CN 201720577223 U CN201720577223 U CN 201720577223U CN 206754430 U CN206754430 U CN 206754430U
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- CN
- China
- Prior art keywords
- relief block
- flap
- valve
- pressure
- inside screw
- 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.)
- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 claims abstract description 22
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 230000003116 impacting effect Effects 0.000 abstract description 3
- 230000033001 locomotion Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 4
- 238000012356 Product development Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009421 internal insulation Methods 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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- Sliding Valves (AREA)
Abstract
The utility model discloses from pressure-releasing type inside screw nonrising stem type gate valve, it includes valve rod（1）, bonnet（2）, valve body（3）And flap（4）, the front and back of the flap has been movably connected with along radially-arranged first relief block of flap（5）With the second relief block（6）, one end that first relief block and the second relief block are located in flap passes through Flexible Connector respectively（7）With piston（8）Affixed, one end that first relief block and the second relief block are located at outside flap is in the taper being adapted to valve body sealing surface respectively.The beneficial effects of the utility model are that compression is passed to Flexible Connector, piston and the second relief block by the first relief block when the one side of flap is by impacting with high pressure, and finally cause the first relief block and the movement of the second relief block occurred level, by the pressure shunt suffered by flap, and cause no matter which face of flap is pressurized can obtain release.
Description
Technical field
It the utility model is related to gate valve, more particularly to inside screw nonrising stem type gate valve.
Background technology
Inside screw nonrising stem type gate valve, swingle gate valve is called, valve stem nut is located on flashboard, and hand wheel rotating band ovable valve stem rotates, and makes
Flashboard is lifted, and is generally had trapezoidal thread in the bottom of valve rod, by the guide groove on the screw thread and flap of valve bottom, will be rotated
Motion is changed into moving along a straight line, that is, operation torque is changed into operating thrust.During Open valve, when flashboard hoisting depth is equal to valve
The 1 of door latus rectum：At 1 times, the passage of fluid is completely unimpeded, but operationally, this position can not monitor.During actual use,
It is using the summit of valve rod as mark, that is, motionless position is opened, as its fully open position.
The flap of inside screw nonrising stem type gate valve is that flashboard can be by the direct impact of medium, if impact long meeting of excessive or attack time
Cause the compression of flap one side is excessive relative displacement occurs with valve stem nut, the posture run-off the straight of flap, cause valve stem nut quilt
Stuck and can not open and close, Chinese utility model patent application number CN02217193.2 discloses internal bypass pressure-reducing hidden rod gate valve, valve
Disk, valve body, valve element, valve rod, cartridge cover；Valve disc is fixed on valve stem tip, and valve element is arranged in valve body, valve rod insertion valve body
Interior, the driving member chute that lower end is inserted in valve element is connected with valve element；Described valve element is made up of big valve core, small valve core, institute
The sealing chute of small valve core can be held by being provided with the big valve core stated, and small valve core profile is engaged with sealing chute shape, big valve core,
Small valve core combines, as integral type valve element；Described valve rod is screw rod, is made up of screw rod, valve rod fixture, driving member, bottom
It is connected by screw rod with small valve core internal thread, valve rod lower end sets a driving member coordinated with threaded stem, big with being arranged at
Valve element Shangdi fixture is engaged.The utility model is complicated, and transmission is cumbersome, easily breaks down.
Utility model content
The technical problems to be solved in the utility model is that the flap of existing inside screw nonrising stem type gate valve is held by the impacting with high pressure of one side
Easily there is flap to deviate installation site and can not normally open and close, provided for this kind of from pressure-releasing type inside screw nonrising stem type gate valve.
The technical solution of the utility model is：From pressure-releasing type inside screw nonrising stem type gate valve, it includes valve rod, bonnet, valve body and flap, institute
The front and back for stating flap has been movably connected with along radially-arranged first relief block of flap and the second relief block, and described
One end that one relief block and the second relief block are located in flap is affixed with piston by Flexible Connector respectively, first release
One end that block and the second relief block are located at outside flap is in the taper being adapted to valve body sealing surface respectively.
The improvement of such scheme be offered in the flap by the first relief block, the second relief block, Flexible Connector and
The radial passage of piston seal.
The further improvement of such scheme is consolidated between first relief block and piston, between the second relief block and piston
It is connected to the flexible seals for isolating Flexible Connector.
The further improvement of such scheme is that the valve stem part in the bonnet is fitted with valve rod spiral shell successively from top to bottom
Female, thrust block and thrust pad, the side of the thrust pad and valve stem contacts are plane, the side that the thrust pad contacts with bonnet
With two parallel grooves, the plane and groove of the thrust pad are real by sealing ring and valve rod and bonnet respectively
Now seal.
Flexible Connector described in such scheme is stage clip.
Flexible seals described in such scheme are bellowss.
The beneficial effects of the utility model are that the first relief block transmits compression when the one side of flap is by impacting with high pressure
To Flexible Connector, piston and the second relief block, and finally cause the first relief block and the movement of the second relief block occurred level, will
Pressure shunt suffered by flap, and cause no matter which face of flap is pressurized can obtain release.
Brief description of the drawings
Fig. 1 is the utility model schematic diagram；
Fig. 2 is enlarged drawing at Fig. 1 a；
In figure, 1, valve rod, 2, bonnet, 3, valve body, 4, flap, the 5, first relief block, the 6, second relief block, 7, elastic connection
Part, 8, piston, 9, flexible seals, 10, valve stem nut, 11, thrust block, 12, thrust pad.
Embodiment
The utility model is described further below in conjunction with the accompanying drawings.
As shown in Figure 1-2, the utility model includes valve rod 1, bonnet 2, valve body 3 and flap 4, the front of the flap and the back of the body
Face has been movably connected with along the radially-arranged relief block 6 of first relief block 5 and second of flap, first relief block and second
One end that relief block is located in flap is affixed by Flexible Connector 7 and piston 8 respectively, first relief block and the second release
One end that block is located at outside flap is in the taper being adapted to valve body sealing surface respectively.
Embodiment 1：From pressure-releasing type inside screw nonrising stem type gate valve, it includes valve rod, bonnet, valve body and flap, the front of the flap and
The back side has been movably connected with along radially-arranged first relief block of flap and the second relief block, first relief block and second
One end that relief block is located in flap is affixed with piston by stage clip respectively, and first relief block and the second relief block are located at valve
One end outside valve is respectively in the taper being adapted to valve body sealing surface.
Embodiment 2：Difference with embodiment 1 is to offer the first relief block, Flexible Connector and piston in flap
The radial passage of sealing, the radial passage can be that rigid is formed or flexible material is formed, and its object is to by first
Relief block, the second relief block, Flexible Connector and the internal insulation of piston and flap, prevent medium by the first relief block/the second
The junction of relief block and flap is flowed into inside flap.
Embodiment 3：For the dielectric corrosion for preventing Flexible Connector from being flowed into, between the first relief block and piston, second
The flexible seals 9 for isolating Flexible Connector are connected between relief block and piston, the flexible seals can be with first
Between relief block and piston/the second displacement between relief block and piston and deploy or shrink, protect Flexible Connector not with Jie
Matter contacts.Flexible seals are preferably bellows.
Embodiment 4：In order to ensure the sealing effectiveness of upper sealing effectiveness, i.e. valve cover portion, valve stem part in bonnet is from upper
It is fitted with valve stem nut 10, thrust block 11 and thrust pad 12 successively under, the side of the thrust pad and valve stem contacts is plane,
The side that the thrust pad contacts with bonnet has two parallel grooves, the plane and trench portions of the thrust pad
Do not realized and sealed by sealing ring and valve rod and bonnet.The material of valve rod can be stainless steel, valve stem nut, thrust block and thrust
The material of pad is copper alloy, it is not necessary to carries out surface anticorrosion processing, its processing dimension is with tolerance fit not by the shadow of coating thickness
Ring.The sealing ring of adaptation forms static seal in groove, seals reliable and stable, the sealing ring between the plane and valve rod of thrust pad
For dynamic sealing, static and dynamic sealing, which coordinates, ensures the problem of sealing structure is not in leakage on this.20,000 experiments of repeat switch also can
Sealing structure will not leak outside on this.Sealing structure pattern can be also used for other valve products of dark bar operation, such as twoport on this
The products such as air bleeding valve, stop valve.So make it that product development is versatile, avoids overlapping development mould, greatlys save product
Development cost.Human and material resources are saved, parts is reduced, reduces product cost.In summary, sealing structure pattern is led on this
It is strong with property, it is widely applicable, improve product quality, service life length.
Workflow of the present utility model is as follows：It will be moved when the first relief block is pressurized to flap, stage clip, which is pressurized, to be produced
Deformation, partial pressure is absorbed, while piston moves to the second relief block, the stage clip between the second relief block and piston, which is pressurized, to be received
Contracting, further absorb the impulsive force that shunting flap is subject to.When needing to lift flap, due to the first relief block and the second relief block
Conical design so that the first relief block and the second relief block move horizontally when being contacted with valve clack sealing surface into flap, ensure
The normal keying of flap is not influenceed.
Claims (6)
1. from pressure-releasing type inside screw nonrising stem type gate valve, it includes valve rod（1）, bonnet（2）, valve body（3）And flap（4）, it is characterized in that the valve
The front and back of valve has been movably connected with along radially-arranged first relief block of flap（5）With the second relief block（6）, it is described
One end that first relief block and the second relief block are located in flap passes through Flexible Connector respectively（7）With piston（8）It is affixed, it is described
One end that first relief block and the second relief block are located at outside flap is in the taper being adapted to valve body sealing surface respectively.
2. as claimed in claim 1 from pressure-releasing type inside screw nonrising stem type gate valve, it is characterized in that offered in the flap by the first relief block,
The radial passage of second relief block, Flexible Connector and piston seal.
3. as claimed in claim 2 from pressure-releasing type inside screw nonrising stem type gate valve, it is characterized in that between first relief block and piston, second
The flexible seals for isolating Flexible Connector are connected between relief block and piston（9）.
4. as described in claim 1-3 is any from pressure-releasing type inside screw nonrising stem type gate valve, it is characterized in that valve stem part in the bonnet from
Valve stem nut is fitted with up to successively（10）, thrust block（11）And thrust pad（12）, the one of the thrust pad and valve stem contacts
Side is plane, and the side that the thrust pad contacts with bonnet has two parallel grooves, the plane and ditch of the thrust pad
Groove portion is realized by sealing ring and valve rod and bonnet seal respectively.
5. as described in claim 1-3 is any from pressure-releasing type inside screw nonrising stem type gate valve, it is characterized in that the Flexible Connector is stage clip.
6. as claimed in claim 3 from pressure-releasing type inside screw nonrising stem type gate valve, it is characterized in that the flexible seals are bellowss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720577223.3U CN206754430U (en) | 2017-05-23 | 2017-05-23 | From pressure-releasing type inside screw nonrising stem type gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720577223.3U CN206754430U (en) | 2017-05-23 | 2017-05-23 | From pressure-releasing type inside screw nonrising stem type gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206754430U true CN206754430U (en) | 2017-12-15 |
Family
ID=60619066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720577223.3U Expired - Fee Related CN206754430U (en) | 2017-05-23 | 2017-05-23 | From pressure-releasing type inside screw nonrising stem type gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206754430U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869867A (en) * | 2018-09-11 | 2018-11-23 | 铜陵爱阀科技有限公司 | It seals in one kind from release inside screw nonrising stem type gate valve |
| CN109027380A (en) * | 2018-09-10 | 2018-12-18 | 铜陵爱阀科技有限公司 | A kind of remote controlled gate valve |
| CN109058490A (en) * | 2018-09-10 | 2018-12-21 | 铜陵爱阀科技有限公司 | A kind of Intelligent anti-leakage Gas-combustion valve |
| CN113700882A (en) * | 2021-08-16 | 2021-11-26 | 凯斯通阀门有限公司 | Accumulated water discharge type gate valve |
-
2017
- 2017-05-23 CN CN201720577223.3U patent/CN206754430U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027380A (en) * | 2018-09-10 | 2018-12-18 | 铜陵爱阀科技有限公司 | A kind of remote controlled gate valve |
| CN109058490A (en) * | 2018-09-10 | 2018-12-21 | 铜陵爱阀科技有限公司 | A kind of Intelligent anti-leakage Gas-combustion valve |
| CN108869867A (en) * | 2018-09-11 | 2018-11-23 | 铜陵爱阀科技有限公司 | It seals in one kind from release inside screw nonrising stem type gate valve |
| CN113700882A (en) * | 2021-08-16 | 2021-11-26 | 凯斯通阀门有限公司 | Accumulated water discharge type gate valve |
| CN113700882B (en) * | 2021-08-16 | 2023-09-29 | 凯斯通阀门有限公司 | Ponding drainage type gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171215 |