CN203322345U - Sealed gate valve with valve plate moving up and down fast - Google Patents
Sealed gate valve with valve plate moving up and down fast Download PDFInfo
- Publication number
- CN203322345U CN203322345U CN2013203149502U CN201320314950U CN203322345U CN 203322345 U CN203322345 U CN 203322345U CN 2013203149502 U CN2013203149502 U CN 2013203149502U CN 201320314950 U CN201320314950 U CN 201320314950U CN 203322345 U CN203322345 U CN 203322345U
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- CN
- China
- Prior art keywords
- valve
- screw rod
- valve plate
- gate valve
- plate
- 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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Abstract
The utility model relates to a sealed gate valve with a valve plate moving up and down fast. The sealed gate valve comprises a valve body, a bonnet, an end cover and a hand wheel. The bonnet and the end cover are sequentially mounted on the valve body in a sealed manner. The valve plate is disposed in the valve body and connected with one of a vertical screw in a meshed manner. The hand wheel is fixedly disposed at the other end, located above an end plate, of the screw. The valve plate is moved up and down by rotating the hand wheel. The screw is of a double-thread structure. By the double-thread screw, the speed of moving up and down is doubled effectively, and the moment is saved by one fold. In addition, a seal ring and an O-shaped ring are disposed on the screw to guarantee seal performance. The sealed gate valve is scientific and reasonable in design, simple in structure and easy to implement, and operation efficiency and seal performance are increased effectively.
Description
Technical field
The utility model belongs to valve technology field, relates to a kind of gate valve, specifically, is the gate valve of a kind of valve plate fast lifting and sealing.
Background technique
Gate valve is a kind of modal keying valve, utilizes valve plate to connect (standard-sized sheet) or blocks the medium in (complete shut-down) pipeline.Valve plate is arranged in valve body in valve body, by the lifting be connected with a joggle of screw rod and valve plate.
The existing screw rod be applied in gate valve is the single start thread structure, and its rotational speed is slow, and moment is larger, and while for accident, needing quick closedown or the situation of Open valve to occur, the unlatching of the gate valve of conventional construction or closing velocity are obvious all the more.
The model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of simple in structure, can realize fast lifting and the strong gate valve of sealability.
Scheme of the present utility model is achieved in that
The gate valve of a kind of valve plate fast lifting and sealing, comprise valve body, valve gap, end cap, handwheel, the valve body top is sealed and installed with valve gap and end cap successively, be provided with valve plate in this valve body, a be connected with a joggle end of a vertical screw rod of this valve plate, the other end of this screw rod is positioned at the top of end plate and is fixed with handwheel, completes the lifting action of valve plate by the rotation of handwheel, the two worm structures of described screw rod.
And, be set with seal ring on the screw rod between screw rod and end plate, be set with an O type circle on the screw rod between screw rod and valve gap.
And described seal ring is spaced two.
And the lower end surface of described seal ring is shaped with an annular groove.
Advantage of the present utility model and good effect are:
This gate valve passes through to use two-flight screw, the rising or falling speed effectively doubled, and also moment is saved one times.In addition, be provided with seal ring and the protection of O type circle two seals on screw rod, guaranteed sealability.The utility model design science is reasonable, simple in structure, be easy to realize, effectively improves operating efficiency and sealability.
The accompanying drawing explanation
Fig. 1 is structure sectional view of the present utility model;
The sectional view that Fig. 2 is the utility model seal ring.
Embodiment
Below in conjunction with accompanying drawing and by specific embodiment, the utility model is described in further detail.
The gate valve of a kind of valve plate fast lifting and sealing, as shown in Figure 1, comprise valve body 5, valve gap 4, end cap 3, handwheel 1, the valve body top is sealed and installed with valve gap and end cap successively, be provided with valve plate 6 in this valve body, a be connected with a joggle end of a vertical screw rod 2 of this valve plate, the other end of this screw rod is positioned at the top of end plate and is fixed with handwheel, completes the lifting action of valve plate by the rotation of handwheel.
Innovative point of the present utility model is:
The two worm structures of described screw rod.
In order to guarantee sealing, be set with two spaced seal rings 8 on the screw rod between screw rod and end plate, the structure of sealing circle as shown in Figure 2, its lower end surface is shaped with an annular groove 9, when having liquid to enter in this annular groove, its fluid pressure is the close and firm more of the inwall of seal ring and the crimping of screw rod outer rim, thereby guaranteed the sealing between end cap and screw rod.
Be set with an O type circle 7 on the screw rod between screw rod and valve gap.
The utility model is by using two-flight screw, the rising or falling speed effectively doubled, and also moment saves one times, in addition, is provided with seal ring and the protection of O type circle two seals on screw rod, guaranteed sealability.
It is emphasized that; embodiment described in the utility model is illustrative; rather than determinate; therefore the utility model comprises and is not limited to the embodiment described in embodiment; every other mode of executions that drawn according to the technical solution of the utility model by those skilled in the art, belong to the scope that the utility model is protected equally.
Claims (4)
1. the gate valve of a valve plate fast lifting and sealing, comprise valve body, valve gap, end cap, handwheel, the valve body top is sealed and installed with valve gap and end cap successively, be provided with valve plate in this valve body, a be connected with a joggle end of a vertical screw rod of this valve plate, the other end of this screw rod is positioned at the top of end plate and is fixed with handwheel, completes the lifting action of valve plate by the rotation of handwheel, it is characterized in that: the two worm structures of described screw rod.
2. the gate valve of valve plate fast lifting according to claim 1 and sealing, is characterized in that: be set with seal ring on the screw rod between screw rod and end plate, be set with an O type circle on the screw rod between screw rod and valve gap.
3. the gate valve of valve plate fast lifting according to claim 2 and sealing, it is characterized in that: described seal ring is spaced two.
4. the gate valve of valve plate fast lifting according to claim 3 and sealing, it is characterized in that: the lower end surface of described seal ring is shaped with an annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203149502U CN203322345U (en) | 2013-05-31 | 2013-05-31 | Sealed gate valve with valve plate moving up and down fast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203149502U CN203322345U (en) | 2013-05-31 | 2013-05-31 | Sealed gate valve with valve plate moving up and down fast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203322345U true CN203322345U (en) | 2013-12-04 |
Family
ID=49661697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203149502U Expired - Fee Related CN203322345U (en) | 2013-05-31 | 2013-05-31 | Sealed gate valve with valve plate moving up and down fast |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203322345U (en) |
-
2013
- 2013-05-31 CN CN2013203149502U patent/CN203322345U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20140531 |