CN207093915U - Flat gate valve - Google Patents
Flat gate valve Download PDFInfo
- Publication number
- CN207093915U CN207093915U CN201721024790.2U CN201721024790U CN207093915U CN 207093915 U CN207093915 U CN 207093915U CN 201721024790 U CN201721024790 U CN 201721024790U CN 207093915 U CN207093915 U CN 207093915U
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- China
- Prior art keywords
- annular
- gland
- bonnet
- mounting groove
- airtight
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- 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.)
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Abstract
The utility model discloses a kind of flat gate valve, including bonnet and valve rod, bonnet is provided with installation through-hole, and valve rod passes through installation through-hole, and the hole wall of installation through-hole is provided with the mounting groove of annular, the airtight and watertight padding of annular is filled with mounting groove, airtight and watertight padding is used for sealing between valve rod and bonnet, and the gland of annular is additionally provided with mounting groove, and gland is used for crush seal filler, the disc spring of annular is additionally provided with mounting groove, disc spring is used for the power source for providing gland crush seal filler.The beneficial effects of the utility model are：Airtight and watertight padding between its valve rod and bonnet can carry out extruding compensation to airtight and watertight padding after being worn, and then improve sealing reliability.
Description
Technical field
It the utility model is related to a kind of flat gate valve.
Background technology
Flat gate valve is typically made up of valve body, bonnet, valve seat, flashboard, valve rod, valve seat installation and valve body inlet and outlet passage
Mouthful, cooperate and seal with the side plane of flashboard two, flashboard driven by valve rod depart from sealing surface of seat or with valve seat fitted seal, it is real
Existing flashboard is turned on and off operating.One of its shortcoming is：Sealed between valve rod and bonnet using airtight and watertight padding, the lifting of valve rod
Abrasion is produced to airtight and watertight padding, sealing reliability is poor.
Utility model content
The purpose of this utility model is to provide a kind of flat gate valve, and the airtight and watertight padding between its valve rod and bonnet is ground
Extruding compensation can be carried out after damage to airtight and watertight padding, and then improves sealing reliability.
To achieve the above object, the utility model provides following technical scheme：
A kind of flat gate valve, including bonnet and valve rod, bonnet are provided with installation through-hole, and valve rod passes through installation through-hole, installation
The hole wall of through hole is provided with the mounting groove of annular, and the airtight and watertight padding of annular is filled with mounting groove, and airtight and watertight padding is used for valve rod and bonnet
Between sealing, the gland of annular is additionally provided with mounting groove, gland is used for crush seal filler, is additionally provided with mounting groove annular
Disc spring, disc spring are used for the power source for providing gland crush seal filler.
Preferably, gland includes medial surface corresponding with valve rod and lateral surface corresponding with mounting groove, the medial surface of gland
The first seal groove provided with annular, the first seal groove is interior to be provided with the first sealing ring, and the lateral surface of gland second provided with annular is close
Sealing groove, the second seal groove is interior to be provided with the second sealing ring.
Preferably, support has been bolted to connection above bonnet.
Operation principle of the present utility model is：Disc spring has certain pretightning force in mounting groove, and airtight and watertight padding is in valve rod
Abrasion is produced under rubbing action, decrement reduces, and now slows down the reduction of pretightning force suffered by filler by the pretension effect of disc spring,
Make sealing at valve rod relatively reliable, while add the service life of airtight and watertight padding, reduce the number for changing airtight and watertight padding.
The beneficial effects of the utility model are：Airtight and watertight padding between its valve rod and bonnet can fill out after being worn to sealing
Material carries out extruding compensation, and then improves sealing reliability.
Brief description of the drawings
Fig. 1 is schematic diagram of the present utility model.
Embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is further described.Implement below
Example is only used for clearly illustrating the technical solution of the utility model, and can not limit protection model of the present utility model with this
Enclose.
The utility model specific implementation technical scheme be：
As shown in figure 1,
A kind of flat gate valve, including bonnet 3 and valve rod 6, bonnet 3 are provided with installation through-hole, and valve rod 6 passes through installation through-hole,
The hole wall of installation through-hole is provided with the mounting groove of annular, and the airtight and watertight padding 9 of annular is filled with mounting groove, and airtight and watertight padding 9 is used for valve rod 6
Sealing between bonnet 3, is additionally provided with the gland 5 of annular in mounting groove, and gland 5 is used for crush seal filler 9, in mounting groove and also
Disc spring 4 provided with annular, disc spring 4 are used for the power source for providing the crush seal filler 9 of gland 5.
Gland 5 includes being provided with 6 corresponding medial surface of valve rod and lateral surface corresponding with mounting groove, the medial surface of gland 5
First seal groove of annular, the first seal groove is interior to be provided with the first sealing ring 7, and the lateral surface of gland 5 is provided with the second sealing of annular
Groove, the second seal groove is interior to be provided with the second sealing ring 8.
The top of bonnet 3 is fixedly connected with support 1 by bolt 2.
Operation principle of the present utility model is：Disc spring 4 has certain pretightning force in mounting groove, and airtight and watertight padding 9 is in valve
Abrasion is produced under the rubbing action of bar 6, decrement reduces, and now slows down pretightning force suffered by filler by the pretension effect of disc spring 4
Reduce, make sealing at valve rod 6 relatively reliable, while add the service life of airtight and watertight padding 9, reduce and change airtight and watertight padding 9
Number.
The beneficial effects of the utility model are：Airtight and watertight padding 9 between its valve rod 6 and bonnet 3 can be to close after being worn
Packing material 9 carries out extruding compensation, and then improves sealing reliability.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model technical principle is not departed from, some improvements and modifications can also be made, these change
Enter and retouch and also should be regarded as the scope of protection of the utility model.
Claims (3)
1. a kind of flat gate valve, it is characterised in that including bonnet and valve rod, bonnet is provided with installation through-hole, and valve rod passes through installation
Through hole, the hole wall of installation through-hole are provided with the mounting groove of annular, the airtight and watertight padding of annular are filled with mounting groove, and airtight and watertight padding is used for valve
Sealing between bar and bonnet, the gland of annular is additionally provided with mounting groove, and gland is used for crush seal filler, also set in mounting groove
There is the disc spring of annular, disc spring is used for the power source for providing gland crush seal filler.
2. flat gate valve according to claim 1, it is characterised in that gland include medial surface corresponding with valve rod and with peace
Lateral surface corresponding to tankage, the medial surface of gland are provided with the first seal groove of annular, the first sealing ring are provided with the first seal groove,
The lateral surface of gland is provided with the second seal groove of annular, and the second sealing ring is provided with the second seal groove.
3. flat gate valve according to claim 2, it is characterised in that branch has been bolted to connection above bonnet
Frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721024790.2U CN207093915U (en) | 2017-08-16 | 2017-08-16 | Flat gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721024790.2U CN207093915U (en) | 2017-08-16 | 2017-08-16 | Flat gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207093915U true CN207093915U (en) | 2018-03-13 |
Family
ID=61541602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721024790.2U Active CN207093915U (en) | 2017-08-16 | 2017-08-16 | Flat gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207093915U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107289178A (en) * | 2017-08-16 | 2017-10-24 | 西诺威阀门控制（苏州）有限公司 | The pneumatic actuator of flat gate valve |
-
2017
- 2017-08-16 CN CN201721024790.2U patent/CN207093915U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107289178A (en) * | 2017-08-16 | 2017-10-24 | 西诺威阀门控制（苏州）有限公司 | The pneumatic actuator of flat gate valve |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |