CN203703186U - Close-fitting back-seal structure of valve - Google Patents
Close-fitting back-seal structure of valve Download PDFInfo
- Publication number
- CN203703186U CN203703186U CN201420019446.4U CN201420019446U CN203703186U CN 203703186 U CN203703186 U CN 203703186U CN 201420019446 U CN201420019446 U CN 201420019446U CN 203703186 U CN203703186 U CN 203703186U
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- China
- Prior art keywords
- circular
- valve rod
- passage
- valve
- circular shaft
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- Expired - Fee Related
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- 239000011148 porous material Substances 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 abstract 7
- 239000012530 fluid Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000002463 transducing effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- -1 steam Substances 0.000 description 1
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- Lift Valve (AREA)
Abstract
The utility model provides a close-fitting back-seal structure of a valve. The close-fitting back-seal structure of the valve is composed of a gate plate, a circular shaft, a valve rod and a long T-shaped screw. The valve rod is T-shaped, and a circular penetrating hole channel in the horizontal direction is arranged at the bottom end. A +-shaped circular penetrating hole channel is arranged in the middle of the circular shaft, the hole wall in the vertical direction is provided with inner threads, and matched outer threads are arranged outside the inner threads and the vertical portion of the valve rod. An inverted T-shaped penetrating hole channel is arranged on the gate plate. The circular shaft is inserted into the circular penetrating hole channel arranged on the gate plate in the horizontal direction, the vertical portion of the valve rod is inserted into the circular penetrating hole channel of the circular shaft in the vertical direction, the long T-shaped screw penetrates the circular penetrating hole channel of the circular shaft in the horizontal direction and the circular penetrating hole channel of the bottom of the valve rod in the horizontal direction to enable the valve rod, the circular shaft and the gate plate to form a whole, the back-seal structure that the valve rod and the gate plate closely fit is achieved, and the problem that an existing high-pressure flat plate gate valve easily drops due to pulling is solved.
Description
Technical field
The utility model relates to mechanical engineering valve technology field, relates in particular to a kind of valve close-fitting back seal structure.
Background technique
Valve is in fluid system, is used for controlling direction, the pressure of fluid, the device of flow.Valve is the device that medium (liquid, gas, powder) in pipe arrangement and equipment is flowed or stop and controlling its flow.
Valve is controlling component in pipeline fluid transporting system, and it is for changing path section and media flow direction, has the functions such as water conservancy diversion, cut-off, throttling, non-return, shunting or overflow release.For the valve of fluid control, from the simplest stop valve to very complicated robot control system(RCS) various valves used, its kind and specification are various, the inside nominal diameter of valve reaches greatly the industrial pipeline valve of 10m to latus rectum from atomic little Gauge Valves.Valve can be used for controlling all kinds such as water, steam, oil product, gas, mud, various Korrosionsmedium, liquid metal and radioactive fluid and fluidly flows, the working pressure of valve can be from 0.0013MPa to 1000MPa ultrahigh pressure, operating temperature is from the high temperature of the ultralow temperature to 1430 of-270 DEG C DEG C.The control of valve can adopt the multiple kind of drive, as manual, electronic, surge, pneumatic, turbine, electromagnetic driven, electromagnetism surge, electricity surges, air-or liquid-operated, spur wheel, umbrella gear driving etc.; Can be under the effect of pressure, temperature or other form transducing signal, by predetermined requirement action, or do not rely on transducing signal and simply open or close, valve relies on driving or automechanism to make open-shut device do lifting, slippage, swing or rotation motion, thereby the size that changes its Flow area is to realize its control function.
Along with social development, not only easy for installation and firm and durable of research, and the valve of economic, energy-conservation and environmental protection, seem particularly important.The plate valve of high pressure, flashboard is that back seal is connected with valve rod, on valve, when left-right switch, flashboard and valve rod produce and swing, and the in the situation that of medium high pressure, easily produce flashboard and valve rod drags. cause Push And Release valve invalidation.
Model utility content
For above-mentioned defect of the prior art and problem, the utility model embodiment's object is to provide a kind of valve close-fitting back seal structure of better reliability, thereby improves steadiness.
In order to achieve the above object, the utility model embodiment provides following technological scheme:
A kind of valve close-fitting back seal structure, by flashboard, circular shaft, valve rod and T font long bolt form, it is characterized in that, valve rod is " T " font, and vertical component is cylindrical, vertical component lower end is outside equipped with outside thread, and bottom is provided with the circular perforations passage of a substantially horizontal; In the middle of circular shaft, be provided with the circular perforations passage of " ten " font, and be provided with internal thread on the hole wall of the circular perforations passage of Vertical direction, internal thread matches with the outside thread that valve rod vertical component is outside equipped with; On flashboard, be provided with the perforation lanes of inverted " T " font; Circular shaft is inserted in the perforation lanes of the substantially horizontal being provided with on flashboard, valve rod vertical component is inserted in the circular perforations passage of circular shaft Vertical direction, and T font long bolt is through the circular perforations passage of circular shaft substantially horizontal and the circular perforations passage of stem bottom substantially horizontal.
As technique scheme preferably, the circular perforations passage being provided with in the middle of circular shaft, wherein the pore size of the circular perforations passage of Vertical direction and the phase-splitting of valve rod vertical component effect agree with, and the pore size of the circular perforations passage that the pore size of circular perforations passage of substantially horizontal and the bottom of valve rod are provided with is identical.
As technique scheme preferably, the perforation lanes being provided with on flashboard, and the channel height of the perforation lanes of substantially horizontal is identical with the height of circular shaft, the perforation lanes of Vertical direction is circular channel, and the aperture of perforation lanes is identical with the pore size of the circular perforations passage of the Vertical direction being provided with in the middle of circular shaft.
A kind of valve close-fitting back seal structure that the utility model embodiment provides, compared with prior art, advantage of the present utility model is just: the perforation lanes of circular shaft being inserted to the substantially horizontal being provided with on flashboard, again the internal thread of the circular perforations passage of the Vertical direction of the circular shaft of the outside thread of valve rod vertical component and flashboard the inside is cooperatively interacted, again T font long bolt is inserted to the circular perforations passage of circular shaft and stem bottom substantially horizontal, make valve rod, circular shaft and flashboard form as a whole, just realize the back seal structure of valve rod and flashboard close-fitting, solve current high-pressure flat gate valve and easily drawn the phenomenon falling.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the composite structure schematic diagram of the utility model embodiment's valve close-fitting back seal structure.
Fig. 2 is the structure enlarged diagram of the flashboard of the utility model embodiment's valve close-fitting back seal structure.
Fig. 3 is the structure enlarged diagram of the circular shaft of the utility model embodiment's valve close-fitting back seal structure.
Fig. 4 is the structure enlarged diagram of the valve rod of the utility model embodiment's valve close-fitting back seal structure.
In figure: 1-flashboard, 2-circular shaft, 3-valve rod.
Embodiment
Below in conjunction with accompanying drawing of the present utility model, the technical solution of the utility model is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment who obtains under creative work prerequisite, all belong to the scope of the utility model protection.
As Figure 1-4, a kind of valve close-fitting back seal structure, by flashboard 1, circular shaft 2, valve rod 3 and T font long bolt 4 form, and valve rod 3 is " T " font, and vertical component is cylindrical, and vertical component lower end is outside equipped with outside thread, bottom is provided with the circular perforations passage 31 of a substantially horizontal; The circular perforations passage 21 that is provided with " ten " font in the middle of circular shaft 2, is provided with internal thread on the hole wall of the circular perforations passage of Vertical direction, and internal thread matches with the outside thread that valve rod 3 vertical components are outside equipped with; On flashboard 1, be also provided with the perforation lanes 11 of inverted " T " font; The circular perforations passage 21 being provided with in the middle of circular shaft 2, wherein the pore size of the circular perforations passage of Vertical direction and valve rod 3 vertical component effect phase-splittings agree with, and the pore size of the circular perforations passage that the pore size of the circular perforations passage of substantially horizontal is provided with the bottom of valve rod 3 is identical; The perforation lanes 11 being provided with on flashboard 1, the channel height of the perforation lanes of substantially horizontal and circle, 2 height is identical, and the perforation lanes of Vertical direction is circular channel, and the aperture of perforation lanes is identical with the pore size of the circular perforations passage of the Vertical direction being provided with in the middle of circular shaft 2; Circular shaft 2 is inserted in the perforation lanes of the substantially horizontal being provided with on flashboard 1, valve rod 3 vertical components are inserted in the circular perforations passage of circular shaft 2 Vertical direction, and T font long bolt 4 is through the circular perforations passage of circular shaft 2 substantially horizontals and the circular perforations passage 31 of valve rod 3 bottom level directions.
When use, circular shaft 2 is inserted to the perforation lanes of the substantially horizontal being provided with on flashboard 1, again the internal thread of the circular perforations passage of the Vertical direction of the circular shaft 2 of the outside thread of valve rod 3 vertical components and flashboard 1 the inside is cooperatively interacted, again T font long bolt 4 is inserted to the circular perforations passage of circular shaft 2 and valve rod 3 bottom level directions, valve rod 3, circular shaft 2 and flashboard 1 are formed as a whole, just realized the back seal structure of valve rod and flashboard close-fitting.
The above; it is only embodiment of the present utility model; but protection domain of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; can expect easily changing or replacing, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should described be as the criterion with the protection domain of claim.
Claims (3)
1. a valve close-fitting back seal structure, by flashboard, circular shaft, valve rod and T font long bolt form, it is characterized in that, valve rod is " T " font, and vertical component is cylindrical, and vertical component lower end is outside equipped with outside thread, bottom is provided with the circular perforations passage of a substantially horizontal; In the middle of circular shaft, be provided with the circular perforations passage of " ten " font, and be provided with internal thread on the hole wall of the circular perforations passage of Vertical direction, internal thread matches with the outside thread that valve rod vertical component is outside equipped with; On flashboard, be provided with the perforation lanes of inverted " T " font; Circular shaft is inserted in the perforation lanes of the substantially horizontal being provided with on flashboard, valve rod vertical component is inserted in the circular perforations passage of circular shaft Vertical direction, and T font long bolt is through the circular perforations passage of circular shaft substantially horizontal and the circular perforations passage of stem bottom substantially horizontal.
2. a kind of valve close-fitting back seal structure according to claim 1, it is characterized in that, the circular perforations passage being provided with in the middle of circular shaft, wherein the pore size of the circular perforations passage of Vertical direction and the phase-splitting of valve rod vertical component effect agree with, and the pore size of the circular perforations passage that the pore size of circular perforations passage of substantially horizontal and the bottom of valve rod are provided with is identical.
3. a kind of valve close-fitting back seal structure according to claim 1, it is characterized in that, the perforation lanes being provided with on flashboard, and the channel height of the perforation lanes of substantially horizontal is identical with the height of circular shaft, the perforation lanes of Vertical direction is circular channel, and the aperture of perforation lanes is identical with the pore size of the circular perforations passage of the Vertical direction being provided with in the middle of circular shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420019446.4U CN203703186U (en) | 2014-01-13 | 2014-01-13 | Close-fitting back-seal structure of valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420019446.4U CN203703186U (en) | 2014-01-13 | 2014-01-13 | Close-fitting back-seal structure of valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203703186U true CN203703186U (en) | 2014-07-09 |
Family
ID=51053631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420019446.4U Expired - Fee Related CN203703186U (en) | 2014-01-13 | 2014-01-13 | Close-fitting back-seal structure of valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203703186U (en) |
-
2014
- 2014-01-13 CN CN201420019446.4U patent/CN203703186U/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 | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 102600 Beijing city Daxing District Panggezhuang Town Green Road No. 3 Patentee after: BEIJING VALVE GENERAL FACTORY Co.,Ltd. Address before: 102600 Beijing city Daxing District Panggezhuang Town Green Road No. 3 Patentee before: BEIJING VALVE GENERAL FACTORY GROUP Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |