CN2122284U - Moving sealed gate plate - Google Patents
Moving sealed gate plate Download PDFInfo
- Publication number
- CN2122284U CN2122284U CN 92208497 CN92208497U CN2122284U CN 2122284 U CN2122284 U CN 2122284U CN 92208497 CN92208497 CN 92208497 CN 92208497 U CN92208497 U CN 92208497U CN 2122284 U CN2122284 U CN 2122284U
- Authority
- CN
- China
- Prior art keywords
- flashboard
- slide core
- gate valve
- guide post
- utility
- 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.)
- Granted
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- Sliding Valves (AREA)
Abstract
The utility model relates to a moving sealed flashboard, which is characterized in that the flashboard is a block dividing type structure. The utility model comprises a sliding core 1, a left flashboard (2), a right flashboard (3), a snap ring 4, and a guide post 5, wherein, the guide post and the sliding core are integrated into an entity; the left flashboard and the right flashboard are provided with slots matched with the guide post which can slide along the sliding slot of the flashboard, and the sliding core is matched with the left flashboard and the right flashboard in a wedge shape. The block dividing flashboard is used for brake valves and has the advantages of good sealing performances and quick, easy, and flexible start and close, and particularly the phenomenon of the dead flashboard caused by heat deformation to a socket joint welded brake valve is avoided.
Description
The utility model relates to the motive sealing formula flashboard of using on a kind of gate valve.
At present, the flashboard that uses on the motive sealing formula gate valve is a kind of flashboard of monomer structure, when flashboard cuts out with breakdown action as gate valve in valve body, the sealing surface of flashboard and stuffing box gland relatively moves, because friction makes sealing surface damage easily when mobile, cause gate valve to leak.Open and close difficulty when another shortcoming of this flashboard is to use, be particularly useful for the SOCKET WELDING gate valve, the gate valve stuck phenomenon very easily takes place in the thermal distortion because of welding produces, and influences gate valve and normally uses.
The purpose of this utility model is to improve the structure of existing motive sealing formula flashboard, provides a kind of open-close convenient, the novel motive sealing formula flashboard of good seal performance.
Technical solution of the present utility model is a kind of double-flashboard of design, be commonly called as the blocking type flashboard, original one piece flashboard is located away from left and right two shoe brake plates, a slide core is installed in the middle of two flashboards, utilize slide core to move down, two flashboards are expanded, the stuffing box gland in the closed valve to both sides, thereby close dead gate valve, otherwise gate valve is opened.
This motive sealing formula double-flashboard comprises slide core, left and right flashboard, directional post and snap ring, and directional post and slide core are integral, and left and right flashboard has the chute that matches with the slide core directional post, and directional post falls into chute.And can be along chute slippage up and down, slide core and left and right gate valve are wedge-like engagement.
This motive sealing formula double-flashboard use condition in gate valve: flashboard is packed in the valve body of gate valve, and the slide core upper end is connected with the valve rod of gate valve.When valve rod moved down, slide core glided thereupon, and the left and right flashboard that is positioned at both sides is expanded outwardly, and was adjacent to the valve seal cover, closing gate valve, when carrying on the valve rod, slide core with on carry, under the fluid pressure effect, flashboard leaves the valve seal cover, gate valve is opened.
Because the utility model changes flashboard into separate type, during work, flashboard contacts to positive contact with the valve seal cover, and sealing surface is not produced friction, makes sealing surface keep the better seal quality, thereby makes gate valve have the better seal performance.Adopt separate type, make flashboard start rapidly, easily, flexibly,, avoided causing the phenomenon that flashboard is stuck because of thermal distortion especially for the SOCKET WELDING gate valve.
Fig. 1 is a kind of embodiment's parallel type of the utility model double-flashboard structural drawing.
Fig. 2 is the another kind of embodiment's wedge-type of a utility model double-flashboard structural drawing.
The feature of the structure of parallel type double-flashboard is that the outer side surface of left and right flashboard is parallel to each other, and is applicable to that valve seal cover end face is a flat state.The structure characteristic of wedge-type double-flashboard is that the outer side surface of left and right flashboard is the inclined-plane, is applicable to that valve seal cover end face is the inclined-plane state.Fig. 1, Fig. 2, in, 1 be slide core, 2 for left flashboard, 3 for right flashboard, 4 be snap ring, 5 is directional post, two figure represent that double-flashboard overlaps with Gate-valve sealing and contact situation that 6 is stuffing box gland among the figure.
Claims (3)
1, the motive sealing formula flashboard of using on a kind of gate valve, it is characterized in that this flashboard is a fraction block structure, comprise slide core 1, left and right flashboard (2,3), snap ring 4, directional post 5, directional post and slide core are integral, left and right flashboard has the groove that matches with the slide core directional post, directional post falls into chute, and can be along chute slippage up and down, and slide core and left and right gate valve are wedge-like engagement.
2, according to claim 1, described motive sealing formula flashboard is characterized in that the outer side surface of left and right flashboard is parallel to each other.
3, according to claim 1, described motive sealing formula flashboard, the outer side surface that it is characterized in that left and right flashboard is the inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92208497 CN2122284U (en) | 1992-04-25 | 1992-04-25 | Moving sealed gate plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92208497 CN2122284U (en) | 1992-04-25 | 1992-04-25 | Moving sealed gate plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2122284U true CN2122284U (en) | 1992-11-18 |
Family
ID=4953990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92208497 Granted CN2122284U (en) | 1992-04-25 | 1992-04-25 | Moving sealed gate plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2122284U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109454440A (en) * | 2018-11-27 | 2019-03-12 | 周继东 | A kind of screw feeding device |
-
1992
- 1992-04-25 CN CN 92208497 patent/CN2122284U/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109454440A (en) * | 2018-11-27 | 2019-03-12 | 周继东 | A kind of screw feeding device |
| CN109454440B (en) * | 2018-11-27 | 2020-10-16 | 周继东 | Screw loading attachment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |