CN202188143U - Novel improved structure of hard seal gate valve - Google Patents
Novel improved structure of hard seal gate valve Download PDFInfo
- Publication number
- CN202188143U CN202188143U CN2011202513600U CN201120251360U CN202188143U CN 202188143 U CN202188143 U CN 202188143U CN 2011202513600 U CN2011202513600 U CN 2011202513600U CN 201120251360 U CN201120251360 U CN 201120251360U CN 202188143 U CN202188143 U CN 202188143U
- Authority
- CN
- China
- Prior art keywords
- valve body
- sealing
- flashboard
- valve
- gate valve
- 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 discloses a novel improved structure of a hard seal gate valve, which includes a valve body and a gate plate arranged in the valve body, wherein a medium passage is arranged in the valve body; two seal ring surfaces are arranged on the medium passage in the valve body; two sealing surfaces arranged on the gate plate one-to-one correspond to the seal ring surfaces respectively; the gate plate vertically moves in the valve body so as to enable the sealing surfaces and the seal ring surfaces to be jointed or separated, and then close or open the medium passage; and a transitional structure is arranged at the bottom end of the gate plate. The novel improved hard seal gate valve has simple structure and low cost, is convenient to manufacture, can overcome the problem that the sealing performance is influenced as the seal ring surfaces of the valve body are scratched by the burs on the edges and corners of the sealing surfaces of the gate plate through additionally arranging the transitional structure, and ensures the sealing effect of the seal ring surfaces.
Description
Technical field
The utility model relates to valve, and particularly a kind of novel hard seal gate valve improves structure.
Background technique
The working principle of gate valve: gate valve is meant the valve that flashboard moves along the Vertical direction of valve rod.Gate valve in pipeline, can only make standard-sized sheet and complete shut-down is intercepted usefulness, can not do to regulate and throttling.Gate valve is as using by medium, and its medium comprises water, oil, and steam makes the handwheel actuate valve stem make flashboard press to valve body sealing surface by force to the transmission of flashboard through certain external power when work, to guarantee the sealing of sealing surface.Flashboard generally is used for the operating mode of standard-sized sheet or full cut-off, is not suitable for as regulating or the throttling use.
Existing a kind of gate valve be through be located at respectively on the flashboard both sides with vertical plane between angle to be small angle such as 3 ° sealing surface and two sealing surfaces in the valve body push to contact by force reaches sealing effect.This type gate valve product the simulation pipeline pressure flow to the Pressure testing state under;, valve wide open supports the air pressure that continues feeding 0.6MPa when ventilating from valve one; Throttle down then, whether have leakage phenomenon, if the sealing pair of flashboard and valve body is zero leakage in 10 minutes from the valve the other end if observing valve; Qualified products then, otherwise be substandard products.And in these existing gate valve products, often having such defective: there is a little burr at flashboard sealing surface edge after processing, when the flashboard lock is gone into valve body sealing surface, can cause sealing surface on flashboard and the valve body to have slightly to damage, and so just possibly cause leaking.
The model utility content
The utility model problem to be solved just provides a kind of novel hard seal gate valve and improves structure, and is simple in structure, easy to make, with low cost, good sealing effect, the requirements at the higher level of sealability when satisfying high-end customer valve being used.
In order to solve the problems of the technologies described above; The utility model adopts following technological scheme: a kind of novel hard seal gate valve improves structure; Comprise valve body and be located at the flashboard in the valve body; Be provided with medium channel in the valve body, in valve body, be positioned at be provided with on the medium channel two the sealing anchor rings, flashboard be provided with two sealing surfaces respectively with the sealing anchor ring corresponding one by one; Flashboard moves up and down in valve body and makes sealing surface engage or separate with the sealing anchor ring to make medium channel cut out or open, and it is characterized in that: said flashboard bottom is provided with transition structure.
Further, said transition structure is the circular arc chamfering transition that is located between sealing surface and the flashboard bottom end.Rounding is carried out in edges and corners, sealing surface of the discharge gate edge, solved, guarantee the sealing effect of sealing anchor ring because of flashboard sealing surface edge corner angle burr scratch valve seal anchor ring influences sealability.
After adopting technique scheme, the utlity model has following advantage: solved because of flashboard sealing surface edge corner angle burr scratch valve seal anchor ring, improved the sealability of gate valve greatly, be implemented in the leak free requirement of gate valve in 10 minutes.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described further:
Fig. 1 is a kind of embodiment's of the utility model a structural representation;
Fig. 2 is an A place enlarged view among Fig. 1.
Embodiment
A kind of embodiment's of the utility model as illustrated in fig. 1 and 2 structural representation; A kind of novel hard seal gate valve improves structure; Comprise valve body 1 and be located at the flashboard 2 in the valve body; Be provided with medium channel 10 in the valve body, in valve body, be positioned at be provided with on the medium channel two the sealing anchor rings 11, flashboard be provided with two sealing surfaces 21 respectively with the sealing anchor ring corresponding one by one; Flashboard moves up and down in valve body and makes sealing surface engage or separate with the sealing anchor ring to make medium channel cut out or open, and said flashboard bottom is provided with transition structure.In the present embodiment, said transition structure is preferably circular arc chamfering 22 transition that are located between sealing surface and the flashboard bottom end.Can certainly select other like transition structures such as 45 degree chamferings, elliptic arc chamferings.
Claims (2)
1. a novel hard seal gate valve improves structure; Comprise valve body (1) and be located at the flashboard (2) in the valve body; Be provided with medium channel (10) in the valve body, in valve body, be positioned at be provided with on the medium channel two the sealing anchor rings (11), flashboard be provided with two sealing surfaces (21) respectively with the sealing anchor ring corresponding one by one; Flashboard moves up and down in valve body and makes sealing surface engage or separate with the sealing anchor ring to make medium channel cut out or open, and it is characterized in that: said flashboard bottom is provided with transition structure.
2. a kind of novel hard seal gate valve according to claim 1 improves structure, and it is characterized in that: said transition structure is circular arc chamfering (22) transition that is located between sealing surface and the flashboard bottom end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202513600U CN202188143U (en) | 2011-07-15 | 2011-07-15 | Novel improved structure of hard seal gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202513600U CN202188143U (en) | 2011-07-15 | 2011-07-15 | Novel improved structure of hard seal gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202188143U true CN202188143U (en) | 2012-04-11 |
Family
ID=45919595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202513600U Expired - Fee Related CN202188143U (en) | 2011-07-15 | 2011-07-15 | Novel improved structure of hard seal gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202188143U (en) |
-
2011
- 2011-07-15 CN CN2011202513600U patent/CN202188143U/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 | ||
| CP03 | Change of name, title or address |
Address after: 311835 Zhuji port industrial area, Zhejiang Patentee after: ZHEJIANG DUNAN INTELLIGENT CONTROL TECHNOLOGY CO., LTD. Address before: 311835 Zhuji City, Zhejiang Province Industrial Zone, mouth shop Patentee before: Zhejiang Dun'an Valve Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120411 Termination date: 20190715 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |