CN201621352U - Boosting cutoff device - Google Patents
Boosting cutoff device Download PDFInfo
- Publication number
- CN201621352U CN201621352U CN2010201560328U CN201020156032U CN201621352U CN 201621352 U CN201621352 U CN 201621352U CN 2010201560328 U CN2010201560328 U CN 2010201560328U CN 201020156032 U CN201020156032 U CN 201020156032U CN 201621352 U CN201621352 U CN 201621352U
- Authority
- CN
- China
- Prior art keywords
- main body
- hole
- headscrew
- piston
- power
- 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
Links
Images
Landscapes
- Actuator (AREA)
Abstract
The utility model relates to the improvement of a boosting cutoff device, which is mainly characterized in that a hollow cavity is arranged on a main body, a piston is arranged in the hollow cavity and is installed on a screw rod of a main shaft, two through holes are arranged on the main body, are respectively arranged at both sides of the main body and are communicated with the hollow cavity, the positions of a water inlet and a water outlet of the main body are also provided with through holes, and the through holes are correspondingly connected with the two through holes of the main body by pipelines. During closure, the through hole at the end of the water outlet is closed, part of fluid flows into the hollow cavity of the main body by the through hole of the water inlet through a pipeline because the water inlet is subject to the high pressure of liquid, downward pressure is provided to the piston in the hollow cavity, the screw rod of the main shaft can drive the piston to move downwards, and very large force is saved for operating personnel to downwards twist a nut of the main shaft. Compared with the prior art, the utility model has essential characteristics and progress.
Description
Technical field
The utility model is related is a kind of improvement invention of power-assisted cut-off device, and what be specifically related to is a kind of improvement invention that can be easy to a kind of power-assisted cut-off device that throttle down circulates by high-pressure liquid.
Background technique
In the prior art, be used for ending the valve of high-pressure liquid because the hydrodynamic pressure that is subjected to is huge, be difficult to just can to reverse handwheel during operation and end fluid with a people power, must assemble several personnel make a concerted effort mobile handwheel simultaneously could throttle down, secondly because the high pressure of fluid is easy to cause valve seal bad.
Summary of the invention
In view of the technical problem that known technology exists, the technical problem that the utility model solved be for provide a kind of simple in structure, design is ingenious, a kind of power-assisted cut-off device that can effectively reduce the throttle down dynamics and improve sealability.In order to achieve the above object, the following technological scheme of the utility model realizes: a kind of power-assisted cut-off device, include main body, headscrew, described headscrew is located in the main body, sealed core is fixed in the headscrew bottom, it is characterized in that being that described main body is provided with a cavity, be provided with a piston in described this cavity, described piston is installed on the headscrew, described main body is provided with two through hole, and this through hole branch is located at the main body both sides, and described through hole is communicated with cavity, the water intake of described main body and water outlet place also are provided with through hole, and described this through hole is by the two through hole corresponding connection of pipeline with main body.
Be provided with the combined expanded seal ring of T shape in the described T shape groove, the combined expanded seal ring of described T shape top is provided with hard sealing.
The described alloyed steel that is sealed into firmly.
Described main body is provided with drive motor, and described mainshaft nut is connected with drive motor shaft drive.
When closing the through hole of that end of water outlet, water intake makes a part of fluid flow to by the road in the cavity of main body by the through hole of water intake owing to be subjected to liquid high pressure, apply downward pressure for the piston in the cavity, piston extends this power to headscrew, saved very big power when reversing mainshaft nut downwards for operator, as long as can realize once twisting gently.Described sealed core is provided with interior T shape groove, is provided with the combined expanded seal ring of T shape in the described T shape groove, and the combined expanded seal ring of described T shape top is provided with hard sealing, because the structure of T shape makes the sealability of valve better.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Accompanying drawing has been represented structure of the present utility model and embodiment, each relevant details and working principle thereof of embodiment are described below more in conjunction with the accompanying drawings: this kind power-assisted cut-off device, include main body 1, headscrew 2, described headscrew 2 is located in the main body 1, sealed core 3 is fixed in headscrew 2 bottoms, described main body 1 is provided with a cavity 4, be provided with a piston 5 in described this cavity 4, described piston 5 is installed on the headscrew 2, described main body 1 is provided with two through hole 6`, 6, this through hole 6`, be located at main body 1 both sides in 6 minutes, described through hole 6`, 6 are communicated with cavity 4, the water intake 7 and water outlet 8 places of described main body 1 also are provided with through hole 7`, 8`, described this through hole 7`, 8` is by pipeline 9, the two through hole 6` of 9` and main body 1,6 corresponding connections, described pipe 9,9` is the power-assisted high-voltage tube, one end of high-voltage tube respectively is provided with booster valve 10,10`, when throttle down dams, as long as close the booster valve 10` of outlet end, entrance point makes a part of fluid flow in the body cavity 4 through booster valve 10 and power-assisted high-voltage tube 9 by the through hole of entrance point owing to be subjected to liquid high pressure, apply a downward pressure for the piston 5 in the cavity 4, move down when making headscrew 2 drive piston 5, reverse mainshaft nut 11 downwards can for operator and save very big power, because rotating spindle nut 11 will make the headscrew 2 that is threaded with this mainshaft nut 11 along with lines moves downward or upward; If the flow direction of liquid is opposite, then only need close the booster valve of end opposite.Described sealed core 3 is provided with interior T shape groove, be provided with the combined expanded seal ring of T shape in the described T shape groove, the combined expanded seal ring of T shape top is provided with hard sealing, the described alloyed steel that is sealed into firmly, owing to adopt the sealed core that has T shape groove, closed type forms labyrinth sealing, makes the sealability of valve better.Can be provided with drive motor 12 on the described main body 1, described mainshaft nut is connected with drive motor shaft drive, therefore the utility model can also be electronic with screw rod being moved be converted to, promptly improve the class of product and saved human resources again, and can be equipped with programmable controller, by sending instruction to drive motor behind the programmable controller acknowledge(ment) signal, make drive motor work or stop, the utility model compared with prior art has substantive distinguishing features and progress.
Claims (5)
1. power-assisted cut-off device, include main body and headscrew, described headscrew is located in the main body, sealed core is fixed in the headscrew bottom, it is characterized in that being that described main body is provided with a cavity, be provided with piston in described this cavity, described piston is installed on the headscrew, described main body is provided with two through hole, this through hole branch is located at the main body both sides, described through hole is communicated with cavity, also is provided with through hole on the main body at the water intake of described main body and water outlet place, and described this through hole is by the two through hole corresponding connection of pipeline with main body.
2. a kind of power-assisted cut-off device as claimed in claim 1 is characterized in that sealed core is provided with interior T shape groove.
3. a kind of power-assisted cut-off device as claimed in claim 2 is characterized in that being provided with the combined expanded seal ring of T shape in the described T shape groove, and the combined expanded seal ring of described T shape top is provided with hard sealing.
4. a kind of power-assisted cut-off device as claimed in claim 3 is characterized in that the described alloyed steel that is sealed into firmly.
5. as claim 1 or 2 or 3 or 4 described a kind of power-assisted cut-off devices, it is characterized in that described main body is provided with drive motor, described headscrew is female to be connected with drive motor shaft drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201560328U CN201621352U (en) | 2010-04-13 | 2010-04-13 | Boosting cutoff device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201560328U CN201621352U (en) | 2010-04-13 | 2010-04-13 | Boosting cutoff device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201621352U true CN201621352U (en) | 2010-11-03 |
Family
ID=43024807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201560328U Expired - Fee Related CN201621352U (en) | 2010-04-13 | 2010-04-13 | Boosting cutoff device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201621352U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101769383A (en) * | 2010-04-13 | 2010-07-07 | 瑞安市良精石化机械厂 | Power-assisted cut-off device |
-
2010
- 2010-04-13 CN CN2010201560328U patent/CN201621352U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101769383A (en) * | 2010-04-13 | 2010-07-07 | 瑞安市良精石化机械厂 | Power-assisted cut-off device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202768508U (en) | Hydraulic ram | |
| CN203115194U (en) | Hydraulic control slow-closure butterfly check valve | |
| CN203746613U (en) | Oil drain valve structure for transformer accidents | |
| CN103273820B (en) | Hydraulic interconnection suspension system and exhausting and sealing method for same | |
| CN201621352U (en) | Boosting cutoff device | |
| CN101769383A (en) | Power-assisted cut-off device | |
| CN206290502U (en) | A kind of large aperture flow-controllable siphoning installation | |
| CN206399608U (en) | A kind of hydraulic station for the intelligent leak detection system of hydraulic turbine servomotor | |
| CN206309677U (en) | A kind of big flow servo valve | |
| CN202531948U (en) | Novel flange gate valve | |
| CN204082740U (en) | A kind of automatic liquid pressure valve | |
| CN201401544Y (en) | Automatic control motor valve | |
| CN210510329U (en) | Gate valve device for water delivery pipeline | |
| CN202132316U (en) | Hydraulic pump station | |
| CN202790572U (en) | Pin-type sealing valve of vacuum superconductive radiator | |
| CN206017979U (en) | A kind of hand stop valve | |
| CN204610928U (en) | A kind of ball relief valve | |
| CN216480284U (en) | Flow converging valve | |
| CN103629364A (en) | Leakage-proof stop valve | |
| CN203565128U (en) | Feeding device of roller press | |
| CN204828912U (en) | Valve packing structure | |
| CN203453483U (en) | Multileveled rotary wear-resisting lift check valve | |
| CN205101588U (en) | Gas gate valve of crossover sub is moulded to belted steel | |
| CN201739520U (en) | Direct burial telescopic water hydrant | |
| CN203686315U (en) | Self-pressure stop device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG MEIDE MACHINERY CO., LTD. Free format text: FORMER OWNER: RUIAN LIANGJING PETROLEUM MACHINERY FACTORY Effective date: 20130524 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130524 Address after: High road 325204 Zhejiang city of Ruian province Luo Feng North Industrial Zone No. 118 Patentee after: ZHEJIANG MEIDE MACHINERY CO., LTD. Address before: Ruian City, Wenzhou City, Zhejiang province 325204 Tangxia Luofeng North Industrial Park High Road No. 118 Patentee before: Ruian Liangjing Petrochemical Machinery Factory |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101103 Termination date: 20140413 |