CN201363439Y - Double-plate gate valve - Google Patents
Double-plate gate valve Download PDFInfo
- Publication number
- CN201363439Y CN201363439Y CNU200920113118XU CN200920113118U CN201363439Y CN 201363439 Y CN201363439 Y CN 201363439Y CN U200920113118X U CNU200920113118X U CN U200920113118XU CN 200920113118 U CN200920113118 U CN 200920113118U CN 201363439 Y CN201363439 Y CN 201363439Y
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- CN
- China
- Prior art keywords
- wedge
- flashboard
- valve
- fagging
- shaped block
- 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 - Lifetime
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Abstract
The utility model relates to a double-plate gate valve, which comprises a valve seat, a valve cover, a valve rod, a flashboard and an operating mechanism. The flashboard comprises a left flashboard and a right flashboard and a wedge-shaped block and a supporting plate; the valve rod is fixedly connected with the wedge-shaped block. The utility model is characterized in that the supporting plate is a single supporting plate, one side of the single supporting plate is provided with a sloping work slant, the other side is provided with a flat work surface which is parallel with the flashboard. The wedge-shaped block is a single-side wedge-shaped block, one side of the wedge-shaped block is provided with a flat work surface which is parallel with the flashboard, a wedge-shaped surface and a supporting slant surface form a slanting-pushing match. The utility model has the advantages that the supporting plate is change into one plate and the wedge-shaped block is changed into the single-side wedge-shaped surface, thereby directly reducing matched slant surface of the wedge-shaped block and the supporting plate; and internal structure of the flashboard is optimized, thereby reducing production cost.
Description
Technical field
The utility model relates to a kind of valve, relates to a kind of pair of plate gate valve in particular, mainly is applicable to industries such as petrochemical industry and pipeline transport.
Background technique
At present, gate valve can divide veneer gate valve and two plate gate valve by structural type, and described veneer gate valve has characteristics such as simple in structure, easy to process; But because the veneer gate valve in use, the sealing surface of its veneer and sealing surface of seat are in contact condition all the time, cause the seal ring abrasion very fast, and sealability is unreliable, cause reduce working life; For this reason, valve manufacturing enterprise has researched and developed a kind of gate valve (as Fig. 1) of double-flashboard, it includes valve body 1, body cap 2, operating device 3, valve rod 4, flashboard 5, the left and right sides fagging 53 that described flashboard 5 includes left and right sides flashboard 51 and is installed in the wedge-shaped blocks 52 between the left and right sides flashboard 51 and cooperates with wedge-shaped blocks 52, described wedge-shaped blocks 52 is fixedlyed connected with valve rod 4; Its working principle is: when valve closing, valve rod 4 moves down flashboard 5 integral body, when fagging 53 roof pressures in the left and right sides during to the boss 11 of valve body 1 low side, valve rod 4 continues wedge-shaped blocks 52 downward roof pressures, at this moment, the inclined-plane 521 by both sides, wedge-shaped blocks 52 below and the inclined-plane 53 1 of left and right sides fagging 53 be wedging mutually, and left and right sides fagging 53 is pushed to both sides, impel the sealing surface of left and right sides flashboard 51 to be close to mutually, thereby realize sealing function with the sealing surface of valve body 1 both sides; Adopt this mode to realize sealing function, its structure more complicated, because two faggings 53 about being provided with, and on its fagging 53, respectively be provided with the inclined-plane; For guaranteeing the sealing function of both sides, 52 of described wedge-shaped blockss must be made as bilateral wedge inclined-plane, thereby cause the processing inclined-plane more, and its inclined-plane difficulty of processing is bigger, causes cost of production directly to improve.
Summary of the invention
In order to optimize flashboard structure and to solve fagging and technical problem such as the wedge-shaped blocks inclined-plane is more and difficulty of processing is bigger, the utility model provides a kind of pair of plate gate valve, and it is reasonable in design, and is easy to process, and sealability is strong, and can effectively solve technical problems such as the more and difficulty of processing in processing inclined-plane is bigger.
For solving above technical problem, the technological scheme that the utility model is taked is an a kind of pair of plate gate valve, and it includes valve seat, valve gap, valve rod, flashboard, operating device, described flashboard include left and right sides flashboard and wedge-shaped blocks and fagging, and described valve rod and wedge-shaped blocks are fixedly connected; It is characterized in that described fagging is single fagging, the one side is provided with an inclined working that tilts, and opposite side is provided with the straight working surface parallel with flashboard; Described wedge-shaped blocks is one-sided wedge-shaped blocks, and the one side is provided with the straight working surface parallel with flashboard, and its sphenoid surface constitutes cant with the fagging inclined-plane and cooperates.
The beneficial effects of the utility model are to change fagging into one and change wedge-shaped blocks into one-sided sphenoid surface, thereby directly reduce the inclined-plane that cooperates of wedge-shaped blocks and fagging, and optimize the internal structure of flashboard, thereby reduce production costs.
Description of drawings
Fig. 1 is the sectional structure chart of existing two plate gate valves
Fig. 2 is a P place enlarged view among Fig. 1
Fig. 3 is the sectional structure chart of the two plate gate valves of the utility model embodiment
Fig. 4 is a K place enlarged view among Fig. 3
Specific embodiments
Below in conjunction with accompanying drawing the utility model mode of execution is described further:
Extremely shown in Figure 4 as Fig. 3, a kind of pair of plate gate valve of the utility model, it includes valve seat 1, valve gap 2, operating device 3, valve rod 4, flashboard 5, described flashboard 5 include left and right sides flashboard 51 and wedge-shaped blocks 52 and fagging 53, and described valve rod 4 is fixedly connected with wedge-shaped blocks 52; Be to optimize flashboard 5 internal structures, and reduce it and cooperate the inclined-plane, described fagging 53 be single fagging 53, and the one side is provided with the inclined working 531 of an inclination, and opposite side is provided with the straight working surface 532 parallel with flashboard 51; Described wedge-shaped blocks 52 is one-sided wedge-shaped blocks, and the one side is provided with the straight working surface 522 parallel with flashboard 51, and its sphenoid surface 521 constitutes cants with the inclined working 531 of fagging 53 and cooperates; Be made as one because fagging 53 changed by original two, reduce wedge-shaped blocks 52 and fagging 53 cooperate the inclined-plane in, optimize the internal structure of flashboard 5, also can reduce the cost of production of pair plate gate valves; Owing on fagging 53 and wedge-shaped blocks, respectively establish a straight working surface 522,532, can guarantee effectively that wedge-shaped blocks 52 in the process of downward roof pressure, guarantees strutting laterally of left and right sides flashboard 51 levels, realize sealing function.
The foregoing description should not be considered as restriction of the present utility model, but any improvement of doing based on spirit of the present utility model, all should be within protection domain of the present utility model.
Claims (1)
1. two plate gate valve, it includes valve seat, valve gap, valve rod, flashboard, operating device, described flashboard include left and right sides flashboard and wedge-shaped blocks and fagging, and described valve rod and wedge-shaped blocks are fixedly connected; It is characterized in that described fagging is single fagging, the one side is provided with an inclined working that tilts, and opposite side is provided with the straight working surface parallel with flashboard; Described wedge-shaped blocks is one-sided wedge-shaped blocks, and the one side is provided with the straight working surface parallel with flashboard, and its sphenoid surface constitutes cant with the fagging inclined-plane and cooperates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200920113118XU CN201363439Y (en) | 2009-01-19 | 2009-01-19 | Double-plate gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200920113118XU CN201363439Y (en) | 2009-01-19 | 2009-01-19 | Double-plate gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201363439Y true CN201363439Y (en) | 2009-12-16 |
Family
ID=41474103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200920113118XU Expired - Lifetime CN201363439Y (en) | 2009-01-19 | 2009-01-19 | Double-plate gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201363439Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563110A (en) * | 2012-03-14 | 2012-07-11 | 伯特利阀门集团有限公司 | Anti-scouring high-temperature gate valve |
| CN108413048A (en) * | 2018-06-05 | 2018-08-17 | 浙江黄岩明华塑胶管件有限公司 | A kind of butterfly valve driving structure and trendy butterfly valve |
-
2009
- 2009-01-19 CN CNU200920113118XU patent/CN201363439Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563110A (en) * | 2012-03-14 | 2012-07-11 | 伯特利阀门集团有限公司 | Anti-scouring high-temperature gate valve |
| CN108413048A (en) * | 2018-06-05 | 2018-08-17 | 浙江黄岩明华塑胶管件有限公司 | A kind of butterfly valve driving structure and trendy butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091216 |