CN205781119U - A kind of controllable type check valve - Google Patents
A kind of controllable type check valve Download PDFInfo
- Publication number
- CN205781119U CN205781119U CN201620521079.7U CN201620521079U CN205781119U CN 205781119 U CN205781119 U CN 205781119U CN 201620521079 U CN201620521079 U CN 201620521079U CN 205781119 U CN205781119 U CN 205781119U
- Authority
- CN
- China
- Prior art keywords
- spool
- valve
- valve seat
- drawhead
- counterbore
- 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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- Multiple-Way Valves (AREA)
- Sliding Valves (AREA)
Abstract
The utility model proposes a kind of controllable type check valve, including valve seat, spool, it is provided with valve pocket in described valve seat, described spool is positioned at valve pocket, and described spool is arranged over a counterbore, and described counterbore base is provided with the through hole running through spool and diameter less than counter bore hole diameters, being provided with one in described through hole can be along the up and down pull bar of valve core axis, described pull bar one end is provided with drawhead, and described drawhead is positioned at counterbore, and described pull bar is provided with connection screw thread relative to one end of drawhead；Bottom surface outside described valve seat is provided with eccentric handle, and described eccentric handle is provided with connecting pin, and described connection is thread through valve seat and is connected with connecting pin.This utility model adds outside valve body newly closes locked eccentric handle for control valve, check valve can be made to completely close from outside locked spool when needed, the closing structure of centering type, closes great efforts, is provided simultaneously with locked effect, safe and reliable.
Description
Technical field
This utility model relates to a kind of check valve, is specifically related to a kind of controllable type check valve.
Background technology
Check valve, also known as check-valves or non-return valve, prevents liquid stream reverse flow in hydraulic system, or in pneumatic system
Preventing compressed air reverse flow, be therefore widely used in power station, oil, chemical industry, pharmacy, the industry such as food, tradition is unidirectional
Valve opening ways automatically turns on often by the pressure medium acting on check valve inwall, needs to close check valve at special occasions
Time, generally requiring input or outfan at check valve increases a stop valve and opens control break-make, and this allows for pipe laying
Holistic cost becomes big, interface increase the increase also resulting in pipeline disclosure risk.
Utility model content
Based on the problems referred to above, this utility model purpose is to provide a kind of controllable type check valve, can be externally controlled list when needed
Close to the active of valve core and cut off medium circulation with this.
For problem above, it is provided that following technical scheme: a kind of controllable type check valve, including valve seat, spool, described valve seat
Upper surface is provided with bonnet, is provided with valve pocket in described valve seat, and described spool is positioned at valve pocket, and described valve seat left side is provided with import,
Being provided with in described import is tilted down extends to the entrance driveway of valve pocket, and described valve seat right side is provided with outlet, sets in described outlet
There is the inclined exit ramp extending upwardly to valve pocket；Described valve pocket is provided with and spool fitted seal between entrance driveway and exit ramp
Sealing, described spool is positioned at above sealing, and described spool is arranged over a counterbore, and described counterbore base is provided with and runs through valve
Core and diameter less than the through hole of counter bore hole diameters, be provided with in described through hole one can along the up and down pull bar of valve core axis, described in draw
Bar one end is provided with drawhead, and described drawhead is positioned at counterbore, and described pull bar is provided with connection screw thread relative to one end of drawhead；
Bottom surface outside described valve seat is provided with eccentric handle, and described eccentric handle is provided with connecting pin, and described connection is thread through valve seat
Being connected with connecting pin, described eccentric handle pulls connecting pin when rotating by eccentric throw, so that connecting pin pulls pull bar, makes
Drawhead pulls downward on spool and promotes spool to realize actively closing in force disconnect valve medium from import to Way out tight against sealing
Circulation.
This utility model is further arranged to, and described drawhead outer wall is provided with some first seal grooves, sets in described first seal groove
Have the first sealing ring, described first sealing ring coordinate with the inwall of counterbore realization seal, it is to avoid the drop-down head of spool closed mode with
Leakage is produced between counterbore.
This utility model is further arranged to, and the outer wall that described pull bar contacts with valve seat is provided with some second seal grooves, described
Second seal groove is provided with the second sealing ring, described second sealing ring and valve seat fitted seal avoid medium in valve seat along pull bar with
Clearance leakage between valve seat is to outside valve seat.
This utility model is further arranged to, and is provided with compensation pad between described drawhead and counterbore bottom surface, and the described pad that compensates is in bias
Handle rotates provides elastic compensating for drawhead when contacting with spool when causing pull bar drop-down.
The beneficial effects of the utility model, contrast existing check valve, and this utility model adds for control valve new outside valve body
Close locked eccentric handle, check valve can be made to completely close from outside locked spool when needed, the closing structure of centering type,
Close great efforts, be provided simultaneously with locked effect, safe and reliable.
Accompanying drawing explanation
Fig. 1 is the structural representation under this utility model Normal Shutdown state；
Fig. 2 is the structural representation under this utility model normal operating conditions；
Fig. 3 is the structural representation under this utility model actively closed mode；
Fig. 4 is the A portion enlarged drawing of this utility model Fig. 1；
Fig. 5 is the B portion enlarged drawing of this utility model Fig. 1.
Label implication in figure: 10-valve seat；11-bonnet,；12-valve pocket；121-sealing；13-import；14-entrance driveway；15-
Outlet；16-exit ramp；20-spool；21-counterbore；211-compensates pad；22-through hole；30-pull bar；301-the second seal groove；
302-the second sealing ring；31-drawhead；311-the first seal groove；312-the first sealing ring；32-connects screw thread；33-bias hands
Handle；34-connecting pin.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, detailed description of the invention of the present utility model is described in further detail.Following example
For this utility model is described, but it is not limited to scope of the present utility model.
Referring to figs. 1 to Fig. 5, a kind of controllable type check valve as shown in Figures 1 to 4, including valve seat 10, spool 20, described
The upper surface of valve seat 10 is provided with bonnet, 11, is provided with valve pocket 12 in described valve seat 10, and described spool 20 is positioned at valve pocket 12,
The left side of described valve seat 10 is provided with import 13, is provided with to be tilted down extends to the entrance driveway of valve pocket 12 in described import 13
14, the right side of described valve seat 10 is provided with outlet 15, is provided with and inclined extends upwardly to going out of valve pocket 12 in described outlet 15
Stomatodeum 16；Described valve pocket 12 is provided with and the sealing 121 of spool 20 fitted seal between entrance driveway 14 and exit ramp 16,
Described spool 20 is positioned at the top of sealing 121, and described spool 20 is arranged over a counterbore 21, sets bottom described counterbore 21
Having the through hole 22 running through spool 20 and diameter less than counterbore 21 diameter, being provided with one in described through hole 22 can be along spool 20 axis
Up and down pull bar 30, described pull bar 30 one end is provided with drawhead 31, and described drawhead 31 is positioned at counterbore 21, described
Pull bar 30 is provided with connection screw thread 32 relative to one end of drawhead 31；Bottom surface outside described valve seat 10 is provided with eccentric handle
33, described eccentric handle 33 is provided with connecting pin 34, and described connection screw thread 32 is connected through valve seat 10 with connecting pin 34, institute
State eccentric handle 33 and pull connecting pin 34 when rotating by eccentric throw, so that connecting pin 34 pulls pull bar 30, make drawhead
31 pull downward on spool 20 promote spool 20 tight against sealing 121 realize actively close force disconnect valve in medium from import 13
To the circulation exporting 15 directions.
A kind of controllable type check valve as shown in Figure 4, described drawhead 31 outer wall is provided with two the first seal grooves 311, and described
Being provided with the first sealing ring 312 in one seal groove 311, described first sealing ring 312 coordinates realization to seal with the inwall of counterbore 21,
Avoid producing between the spool 20 drop-down head of closed mode 31 and counterbore 21 leakage.
A kind of controllable type check valve as shown in Fig. 3, Fig. 5, the outer wall that described pull bar 30 contacts with valve seat 10 is provided with two
Bar the second seal groove 301, described second seal groove 301 is provided with the second sealing ring 302, described second sealing ring 302 and valve seat
10 fitted seal avoid the medium in valve seat 10 outside along the clearance leakage between pull bar 30 and valve seat 10 to valve seat 10.
A kind of controllable type check valve as shown in Figure 3, Figure 4, is provided with compensation pad between described drawhead 31 and counterbore 21 bottom surface
211, described compensate pad 211 eccentric handle 33 rotate cause pull bar 30 drop-down time be drawhead 31 contact with spool 20 time carry
For elastic compensating.
The above is only preferred implementation of the present utility model, it is noted that for those skilled in the art
For, on the premise of without departing from this utility model know-why, it is also possible to make some improvement and modification, this of above-mentioned hypothesis
A little improvement also should be regarded as protection domain of the present utility model with modification.
Claims (4)
1. a controllable type check valve, including valve seat, spool, described valve seat upper surface is provided with bonnet, is provided with in described valve seat
Valve pocket, described spool is positioned at valve pocket, it is characterised in that: described valve seat left side is provided with import, is provided with in inclining in described import
Extending to the entrance driveway of valve pocket obliquely, described valve seat right side is provided with outlet, is provided with inclined extending upwardly in described outlet
The exit ramp of valve pocket；Described valve pocket is provided with and the sealing of spool fitted seal between entrance driveway and exit ramp, described spool
Being positioned at above sealing, described spool is arranged over a counterbore, and described counterbore base is provided with that to run through spool and diameter straight less than counterbore
The through hole in footpath, being provided with one in described through hole can be along the up and down pull bar of valve core axis, and described pull bar one end is provided with drawhead,
Described drawhead is positioned at counterbore, and described pull bar is provided with connection screw thread relative to one end of drawhead；Bottom surface outside described valve seat
Being provided with eccentric handle, described eccentric handle is provided with connecting pin, and described connection is thread through valve seat and is connected with connecting pin, described
Eccentric handle pulls connecting pin when rotating by eccentric throw, so that connecting pin pulls pull bar, makes drawhead pull downward on spool
Spool is promoted to realize actively closing in force disconnect valve medium from import to the circulation of Way out tight against sealing.
A kind of controllable type check valve the most according to claim 1, it is characterised in that: described drawhead outer wall is provided with some the
One seal groove, is provided with the first sealing ring in described first seal groove, described first sealing ring coordinates realization to seal with the inwall of counterbore,
Avoid producing between the drop-down head of spool closed mode and counterbore leakage.
A kind of controllable type check valve the most according to claim 1, it is characterised in that: outside described pull bar contacts with valve seat
Wall is provided with some second seal grooves, and described second seal groove is provided with the second sealing ring, and described second sealing ring coordinates with valve seat
Seal avoid the medium in valve seat along the clearance leakage between pull bar and valve seat to valve seat outside.
A kind of controllable type check valve the most according to claim 1, it is characterised in that: between described drawhead and counterbore bottom surface
Being provided with compensation pad, described compensation provides elasticity to mend when pad contacts with spool for drawhead when eccentric handle rotates and causes pull bar drop-down
Repay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620521079.7U CN205781119U (en) | 2016-05-30 | 2016-05-30 | A kind of controllable type check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620521079.7U CN205781119U (en) | 2016-05-30 | 2016-05-30 | A kind of controllable type check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205781119U true CN205781119U (en) | 2016-12-07 |
Family
ID=58135887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620521079.7U Expired - Fee Related CN205781119U (en) | 2016-05-30 | 2016-05-30 | A kind of controllable type check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205781119U (en) |
-
2016
- 2016-05-30 CN CN201620521079.7U patent/CN205781119U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20161207 Termination date: 20170530 |