CN203297647U - Metal sealing double-valve-plate flat gate valve - Google Patents
Metal sealing double-valve-plate flat gate valve Download PDFInfo
- Publication number
- CN203297647U CN203297647U CN2013203192343U CN201320319234U CN203297647U CN 203297647 U CN203297647 U CN 203297647U CN 2013203192343 U CN2013203192343 U CN 2013203192343U CN 201320319234 U CN201320319234 U CN 201320319234U CN 203297647 U CN203297647 U CN 203297647U
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- valve
- plate
- flat gate
- metal sealing
- plates
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Abstract
The utility model provides a metal sealing double-valve-plate flat gate valve which comprises a valve body, a valve base, a left valve plate, a right valve plate, pre-tensioning springs, a valve rod, a valve cover and packing. The valve body is fixedly connected with the valve cover, and a valve cavity is formed in the valve body. The valve base is fixedly arranged on the valve body. The upper end of each valve plate is fixedly connected with the valve rod. A plurality of the pre-tensioning springs are evenly distributed between the left valve plate and the right valve plate. The left end and the right end of each pre-tensioning spring are fixed to the left valve plate and the right valve plate respectively. According to the metal sealing double-valve-plate flat gate valve, the fixed valve base and the floating-type double valve plates are adopted, the cylindrical spiral pre-tensioning springs are evenly distributed between the two valve plates, and accordingly the two independent floating valve plates are pressed to the surface of the valve base, original sealing pre-tightening force is formed, and the lower-pressure sealing performance is guaranteed. The pre-tensioning springs are positioned and protected through spring base sleeves, impurities can be prevented from entering the springs, the radial positions of the two valve plates are kept consistent all the time, and the structure of the metal sealing double-valve-plate flat gate valve is also suitable for a high-temperature or low-temperature working condition.
Description
Technical field
The utility model belongs to valve field, is specifically related to a kind of metal sealing Double Disc Flat Gate Valves.
Background technique
Plate valve is that a kind of closure member is the slide-valve of parallel gate plate, and its closure member can be Single disc or therebetween with the double-flashboard of spreading mechanism.Flashboard is to be controlled by the pressure medium that acts on float flashboard or floating valve seat to the impacting force of valve seat.If Double Disc Flat Gate Valves, the spreading mechanism between two flashboards can supplement this impacting force.At present, traditional Double Disc Flat Gate Valves when the valve closing state, does not have the initial sealing pretightening force between valve plate and valve seat, easily leak outside.
The model utility content
The utility model, for above-mentioned the deficiencies in the prior art, provides a kind of metal sealing Double Disc Flat Gate Valves of favorable sealing property.
The utility model is achieved by the following technical solution:
A kind of metal sealing Double Disc Flat Gate Valves, comprise valve body, valve seat, left and right two blocks of valve plates, preloading spring, valve rod, valve gap and fillers, and valve body and valve gap are fastenedly connected, the inner valve pocket that forms; Described valve seat is fixedly installed on valve body; The upper end of valve plate is fixedly connected with valve rod, has been evenly arranged a plurality of preloading springs between left and right two valve plates, and the two ends of described preloading spring are fixed with left and right two valve plates respectively.
Further setting of the present utility model is, the outer race of described preloading spring is equipped with a spring socket sleeve that is used for the location protection.
Further setting of the present utility model is, described valve body is connected with fastening nuts by double-screw bolt with valve gap.
Further setting of the present utility model is, is provided with support on described valve gap, is provided with gear-box on described support.
Further setting of the present utility model is, the joint of described valve body and valve gap is provided with pad.
Metal sealing Double Disc Flat Gate Valves described in the utility model is by adopting fixed valve seat, floating type double-flashboard, and between two shoe brake plates uniform cylindrical screw preloading spring, two shoe brake plates of independent floating are pressed to valve base surface, form the initial sealing pretightening force, guarantee the low pressure seal performance.Preloading spring is by the protection of spring socket sleeve location; can prevent that impurity from entering the spring space; affect the Free Compression performance of spring; spring socket sleeve also plays two unsteady flashboards is positioned effect simultaneously; prevent that two flashboards from misplacing in the switch running, guarantee that two flashboard radial positions remain consistent.This structure also is applicable to high temperature or worst cold case.
Description of drawings
Fig. 1 is the structural drawing of metal sealing Double Disc Flat Gate Valves described in the utility model;
Fig. 2 is the partial enlarged drawing of Fig. 1;
In figure, each label is:
Embodiment
The utility model is described in more detail below in conjunction with accompanying drawing.
As shown in Figure 1, 2, the utility model provides a kind of metal sealing Double Disc Flat Gate Valves, comprise valve body 1, valve seat 2, left and right two valve plates 3, preloading spring 5, valve rod 6, valve gap 10 and filler 11, valve body 1 is fastenedly connected by double-screw bolt 7 and nut 8 with valve gap 10, the inner valve pocket that forms; Described valve body 1 is provided with pad 9 with the joint of valve gap 10.Described valve seat 2 is fixedly installed on valve body 1; The upper end of valve plate 3 is fixedly connected with valve rod 6, is provided with support 12 on described valve gap 10, is provided with gear-box 13 on described support 12.Be evenly arranged a plurality of preloading springs 5 between left and right two valve plates 3, the two ends of described preloading spring 5 are fixing with left and right two valve plates 3 respectively.The outer race of described preloading spring 5 is equipped with one and is used for the spring socket sleeve 4 that location is protected.
When valve closing, uniform cylindrical screw shape preloading spring 5 between two shoe brake plates 3, press to valve seat 2 surfaces with two shoe brake plates 3 of independent floating, forms the initial sealing pretightening force, guarantees the low pressure seal performance.Preloading spring 5, by spring socket sleeve 4 location protections, can prevent that impurity from entering the spring space simultaneously.
Claims (5)
1. metal sealing Double Disc Flat Gate Valves, it is characterized in that, comprise valve body (1), valve seat (2), left and right two valve plates (3), preloading spring (5), valve rod (6), valve gap (10) and filler (11), valve body (1) is fastenedly connected with valve gap (10), the inner valve pocket that forms; Described valve seat (2) is fixedly installed on valve body (1); The upper end of valve plate (3) is fixedly connected with valve rod (6), has been evenly arranged a plurality of preloading springs (5) between left and right two valve plates (3), and the two ends of described preloading spring (5) are fixing with left and right two valve plates (3) respectively.
2. metal sealing Double Disc Flat Gate Valves according to claim 1, is characterized in that, the outer race of described preloading spring (5) is equipped with one and is used for the spring socket sleeve (4) that location is protected.
3. metal sealing Double Disc Flat Gate Valves according to claim 1, is characterized in that, described valve body (1) is fastenedly connected by double-screw bolt (7) and nut (8) with valve gap (10).
4. metal sealing Double Disc Flat Gate Valves according to claim 1, is characterized in that, is provided with support (12) on described valve gap (10), is provided with gear-box (13) on described support (12).
5. metal sealing Double Disc Flat Gate Valves according to claim 1, is characterized in that, described valve body (1) is provided with pad (9) with the joint of valve gap (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203192343U CN203297647U (en) | 2013-06-04 | 2013-06-04 | Metal sealing double-valve-plate flat gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203192343U CN203297647U (en) | 2013-06-04 | 2013-06-04 | Metal sealing double-valve-plate flat gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203297647U true CN203297647U (en) | 2013-11-20 |
Family
ID=49573655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203192343U Expired - Lifetime CN203297647U (en) | 2013-06-04 | 2013-06-04 | Metal sealing double-valve-plate flat gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203297647U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108692049A (en) * | 2018-07-31 | 2018-10-23 | 李琼 | A kind of antifriction flat gate valve |
-
2013
- 2013-06-04 CN CN2013203192343U patent/CN203297647U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108692049A (en) * | 2018-07-31 | 2018-10-23 | 李琼 | A kind of antifriction flat gate 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: 20131120 |