CN201866293U - Gate valve - Google Patents
Gate valve Download PDFInfo
- Publication number
- CN201866293U CN201866293U CN2010205969979U CN201020596997U CN201866293U CN 201866293 U CN201866293 U CN 201866293U CN 2010205969979 U CN2010205969979 U CN 2010205969979U CN 201020596997 U CN201020596997 U CN 201020596997U CN 201866293 U CN201866293 U CN 201866293U
- Authority
- CN
- China
- Prior art keywords
- gate plate
- valve
- valve rod
- flashboard
- inverted
- 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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- Sliding Valves (AREA)
Abstract
The utility model relates to a gate valve, which comprises a valve body, a valve cap, a valve rod, a left gate plate and a right gate plate, wherein the valve cap is fixed at the top of the valve body; the valve rod extends into the valve body from the center of the valve cap; the left gate plate and the right gate plate are connected with an end part of the valve rod; an inverted T-shaped groove is formed at the contacted part of the top of the left gate plate and the top of the right gate plate; a sliding block connected with the end part of the valve rod is embedded into the inverted T-shaped groove; a left top core and a right top core are embedded into the contacted part of the middle of the left gate plate and the middle of the right gate plate respectively; the left top core has a spherical structure; and the right top core has an inner arc surface structure which can be embedded into the left top core. The automatic adjustment for the angle of the sealing surfaces of the gate plates and the sealing surface of a valve body flow channel can be realized by matching the left gate plate and the right gate plate with the top cores; and the requirement for the matching precision of wedge angles of the gate plates is low. The sliding block at the end part of the valve rod is mounted in the inverted T-shaped groove at the top ends of the left gate plate and the right gate plate; and if the left gate plate and the right gate plate are not positioned under the valve rod when the left gate plate and the right gate plate press the sealing surface, the left gate plate and the right gate plate can relatively move with the sliding block of the valve rod through the inverted T-shaped groove at the top of the left gate plate and the top of the right gate plate for automatic adjustment, and the valve rod can be prevented from being strained.
Description
Technical field
The utility model relates to a kind of gate valve, particularly a kind of automatic adjusting flashboard and valve rod link position, prevents to pull the gate valve that valve rod causes damage.
Background technique
Gate valve is to use a kind of comparatively widely valve in the pipeline valve, is used for connecting or blocking the medium of pipeline.The open-shut device of gate valve is a flashboard, can be divided into Wedge gate valve and parallel gate valve two classes by the configuration of flashboard sealing surface, the wedge-type flashboard has single, double flashboard: the structure of Single disc is simpler, but the requirement on machining accuracy of the angle of wedge is higher, easily tighten, abrade phenomenon, use narrow limitation big; The structure of double-flashboard is lower to angle of wedge required precision, and it is dead that flashboard is difficult for wedge, uses comparatively extensive.The double-flashboard Wedge gate valve mainly comprises valve body, stretches into the valve rod in the valve body, the left and right flashboard that is connected with valve rod, and be located at hemisphere type plunger tip between the left and right flashboard.It exists shortcoming to be: valve rod is fixedlyed connected with left and right flashboard, if left and right flashboard be not in when compressing valve rod under, easily cause the damage of valve rod.
The model utility content
The technical problems to be solved in the utility model provides a kind of link position that can regulate left and right flashboard and valve rod automatically, prevents that valve rod from tilting to cause the gate valve of damage.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of gate valve, comprise valve body, valve gap, valve rod, left flashboard and right flashboard, the roof anchorage of described valve body has valve gap, valve rod stretches in the valve body from the center of valve gap, left and right flashboard is connected with the end of valve rod, and its innovative point is: the contacting point, top of described left and right flashboard is provided with the inverted T shape groove, and this inverted T shape groove is embedded with the slide block that is connected with the valve rod end; The contacting point, middle part of described left and right flashboard is embedded with left plunger tip and right plunger tip respectively, and left plunger tip is the hemisphere structure, right plunger tip be can chimeric left plunger tip the intrados structure.
Advantage of the present utility model is: left and right flashboard cooperates the self-regulated that realizes flashboard sealing surface and valve flowing channel sealing surface angle with plunger tip, requires low to flashboard angle of wedge quality of fit.The slide block of valve rod end is installed in the inverted T shape groove on left and right flashboard top, when left and right sides flashboard compresses valve body sealing surface, be not in valve rod under, it can automatically adjust by the inverted T shape groove at top and the slide block generation slide relative of valve rod, prevents that valve rod from being pulled.
Description of drawings
Accompanying drawing is the utility model gate valve structure schematic representation.
Embodiment
As shown in drawings, comprise valve body 1, valve gap 2, valve rod 3, left flashboard 4, right flashboard 5, left plunger tip 6, right plunger tip 7, slide block 8.
Above-mentioned valve body 1 top bolt is fixed with valve gap 2, and valve rod 3 stretches into downwards in the valve body 1 from the center of valve rod 2.
Be provided with the wedge-type flashboard assembly of closed valve flowing channel in the valve body 1, it comprises left flashboard 4, right flashboard 5, left plunger tip 6, right plunger tip 7, the contacting point, top of left side flashboard 4 and right flashboard 5 has the inverted T shape groove, is embedded with the slide block 8 that is connected with valve rod 3 ends at this inverted T shape groove.A left side plunger tip 6 and right plunger tip 7 are embedded in the contacting point, middle part of left flashboard 4 and right flashboard 5 respectively, and wherein left plunger tip is the hemisphere structure, right plunger tip be can chimeric left plunger tip the intrados structure.
The contacting point of left and right flashboard 4,5 and valve rod 3, slide block 8 and left and right plunger tip 6,7 has certain interval, makes that left and right flashboard 4,5 all can be movable in several angle.
During use, left and right flashboard 4,5 moves down under the effect of valve rod 3, the wedge-type sealing surface of left and right flashboard 4,5 props up the sealing surface of valve flowing channel, under the effect of external force and left and right plunger tip 6,7, left and right flashboard 4,5 is automatic adjusting angle in its sphere of activities, makes the wedge-type sealing surface of flashboard and the sealing surface of valve flowing channel fit tightly.
When the wedge-type sealing surface compact valve body sealing surface of left and right flashboard 4,5, if its be not in valve rod 4 under, at this moment, inverted T shape groove and slide block 8 generation slide relative that left and right flashboard 4,5 can be by the top, automatically adjust, prevent that valve rod 3 from being damaged by stretch bending.
Claims (1)
1. gate valve, comprise valve body, valve gap, valve rod, left flashboard and right flashboard, the roof anchorage of described valve body has valve gap, valve rod stretches in the valve body from the center of valve gap, left and right flashboard is connected with the end of valve rod, it is characterized in that: the contacting point, top of described left and right flashboard is provided with the inverted T shape groove, and this inverted T shape groove is embedded with the slide block that is connected with the valve rod end; The contacting point, middle part of described left and right flashboard is embedded with left plunger tip and right plunger tip respectively, and left plunger tip is the hemisphere structure, right plunger tip be can chimeric left plunger tip the intrados structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205969979U CN201866293U (en) | 2010-11-09 | 2010-11-09 | Gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205969979U CN201866293U (en) | 2010-11-09 | 2010-11-09 | Gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201866293U true CN201866293U (en) | 2011-06-15 |
Family
ID=44137449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205969979U Expired - Fee Related CN201866293U (en) | 2010-11-09 | 2010-11-09 | Gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201866293U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832671A (en) * | 2015-04-16 | 2015-08-12 | 上海联科阀门成套设备有限公司 | Gate valve |
| CN109210223A (en) * | 2018-11-20 | 2019-01-15 | 南通龙源电站阀门有限公司 | A kind of novel double-gate plate gate valve |
-
2010
- 2010-11-09 CN CN2010205969979U patent/CN201866293U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832671A (en) * | 2015-04-16 | 2015-08-12 | 上海联科阀门成套设备有限公司 | Gate valve |
| CN109210223A (en) * | 2018-11-20 | 2019-01-15 | 南通龙源电站阀门有限公司 | A kind of novel double-gate plate gate valve |
| CN109210223B (en) * | 2018-11-20 | 2023-09-05 | 南通龙源电站阀门有限公司 | Novel double-flashboard gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20141109 |
|
| EXPY | Termination of patent right or utility model |