CN203322341U - Wedge gate valve with replaceable valve seat - Google Patents
Wedge gate valve with replaceable valve seat Download PDFInfo
- Publication number
- CN203322341U CN203322341U CN2013204147523U CN201320414752U CN203322341U CN 203322341 U CN203322341 U CN 203322341U CN 2013204147523 U CN2013204147523 U CN 2013204147523U CN 201320414752 U CN201320414752 U CN 201320414752U CN 203322341 U CN203322341 U CN 203322341U
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- Prior art keywords
- valve
- valve seat
- cone
- seat
- valve body
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- Expired - Fee Related
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Abstract
The utility model discloses a wedge gate valve with a replaceable valve seat. The wedge valve comprises a valve body, a valve seat, a gate plate, a valve rod and a valve deck. The valve deck is fixedly connected to the top of the valve body through a bolt. The gate plate is arranged in the valve body and is connected with the valve rod. The valve rod penetrates through the middle of the valve deck and then is connected with a valve rod nut through threads. The valve rod nut is connected with a hand wheel. When the hand wheel rotates, the valve rod nut drives the valve rod and the gate plate to move vertically so as to open and close the gate valve. The wedge gate valve is characterized in that the valve seat is in detachable connection with the valve body through cone head screws; a plurality of cone head screw holes are formed in valve seat inner holes which are provided with trapezoid annular grooves, the trapezoid annular grooves are matched with cone heads of the cone head screws in shape, and after the cone head screws are screwed into the trapezoid annular grooves, cone head parts of the cone head screws abut against the trapezoid annular grooves. The wedge gate valve has the advantages that the valve seat can be replaced conveniently and in a labor saving mode, maintenance cost is low, and the period is short. Moreover, the wedge gate valve is safe and protects the environment.
Description
Technical field:
The utility model relates to a kind of improvement invention of gate valve.
Background technique:
At present, the gate valve of stipulating in the Wedge gate valve of producing both at home and abroad or standard, valve seat construction is nothing more than following form: 1. adopt the valve body body as valve seat, 2. built-up welding valve seat on the valve body body, 3. valve seat adopts thread connecting mode to be connected with valve body, and 4. valve seat adopts welding manner to be connected with valve body.The shortcoming of said structure valve seat maximum is exactly when sealing surface of seat damages, scratches or ftracture the generation leakage, can't change, can't repair, or rehabilitation cost is higher, even whole valve body is scrapped, buying new valve could solve, and this just causes the increase of user's maintenance cost, but also has influence on the manufacture cycle.
Summary of the invention:
For the deficiencies in the prior art, the purpose of this utility model aims to provide a kind of valve seat and can be changed convenient and strength-savingly, and the maintenance cost is low, the cycle is short, the exchangeable valve seat Wedge gate valve of safety and environmental protection.
The technical solution adopted in the utility model is:
The Wedge gate valve of exchangeable valve seat, comprise valve body, valve seat, flashboard, valve rod and valve gap, valve gap is bolted to connection at the valve body top, flashboard is located in valve body and is connected with valve rod, valve rod is threaded with Stem Mut passing in the middle of valve gap, Stem Mut is connected with handwheel, work as hand wheel rotating, Stem Mut band ovable valve stem and flashboard move up and down realizes opening or closing of gate valve, it is characterized in that: valve seat forms and removably connects by cone-head screw and valve body, the valve seat endoporus is provided with some cone-head screws hole, valve body inner bore is provided with trapezoidal annular groove, the shape of trapezoidal annular groove and the pan head shape of cone-head screw are complementary, cone-head screw its conehead from the precession of cone-head screw hole is gone partly is against in trapezoidal annular groove.
The exchangeable valve seat Wedge gate valve of technique scheme, when leakage phenomenon appears in sealing surface of seat damage, cracking or other factors, as long as unclamp the cone-head screw of valve seat endoporus, after the trapezoidal annular groove that the conehead part backout valve body endoporus of cone-head screw is provided with regard to removable lower valve base, then the valve seat that valve seat just can be repaired or more renew, not only convenient but also laborsaving, and maintenance cost, cycle are short, safety and environmental protection.
As preferably, the valve seat endoporus is provided with 4-8 cone-head screw hole.It is that the built-in O type Quan，Hou of O type ring recess road is the built-in fire-protection ring of fire prevention ring recess that the valve seat cylindrical is established two concave groove ，Qian roads, road, front and back.
The accompanying drawing explanation:
Fig. 1 is structural drawing of the present utility model,
The I section enlarged view that Fig. 2 is Fig. 1.
Embodiment:
As shown in the figure, the Wedge gate valve of exchangeable valve seat of the present utility model, comprise valve body 1, valve seat 6, flashboard 7, valve rod 3 and valve gap 2, valve gap 2 is bolted to connection at valve body 1 top, flashboard 7 is located in valve body 1 and is connected with valve rod 3, valve rod 3 is threaded with Stem Mut 5 passing in the middle of valve gap 2, Stem Mut 5 is connected with handwheel 4, when handwheel 4 rotates, Stem Mut 5 moves up and down and realizes opening or closing of gate valve with ovable valve stem 3 and flashboard 7, valve seat 6 forms and removably connects with valve body 1 by cone-head screw 8, valve seat 6 endoporus are provided with 4-8 cone-head screw hole (number in cone-head screw hole is specifically fixed according to the gate valve caliber size), valve body inner bore 1 is provided with trapezoidal annular groove 10, the shape of trapezoidal annular groove 10 and the conehead of cone-head screw 9 shapes are complementary, when cone-head screw 8 its conehead 9 parts from the precession of cone-head screw hole is gone are against in trapezoidal annular groove 10, so valve seat 6 is fixed in valve body 1, prevent that valve seat from coming off when valve opening, described valve seat 6 cylindricals are established front and back two road concave grooves, front road is the built-in O type of O type ring recess circle 12, rear road is the built-in fire-protection ring 11 of fire prevention ring recess.
The Wedge gate valve of exchangeable valve seat of the present utility model, when leakage phenomenon appears in sealing surface of seat damage, cracking or other factors, as long as unclamp the cone-head screw of valve seat endoporus, after the trapezoidal annular groove that the conehead part backout valve body endoporus of cone-head screw is provided with regard to removable lower valve base, then the valve seat that valve seat just can be repaired or more renew, not only convenient but also laborsaving, and maintenance cost, cycle are short, safety and environmental protection.The utility model is applicable to temperature in occasions such as the water below 250 ℃, oil product, steam.
Claims (3)
1. the Wedge gate valve of exchangeable valve seat, comprise valve body, valve seat, flashboard, valve rod and valve gap, valve gap is bolted to connection at the valve body top, flashboard is located in valve body and is connected with valve rod, valve rod is threaded with Stem Mut passing in the middle of valve gap, Stem Mut is connected with handwheel, work as hand wheel rotating, Stem Mut band ovable valve stem and flashboard move up and down realizes opening or closing of gate valve, it is characterized in that: valve seat forms and removably connects by cone-head screw and valve body, the valve seat endoporus is provided with some cone-head screws hole, valve body inner bore is provided with trapezoidal annular groove, the shape of trapezoidal annular groove and the pan head shape of cone-head screw are complementary, cone-head screw its conehead from the precession of cone-head screw hole is gone partly is against in trapezoidal annular groove.
2. the Wedge gate valve of exchangeable valve seat as claimed in claim 1, it is characterized in that: the valve seat endoporus is provided with 4-8 cone-head screw hole.
3. the Wedge gate valve of exchangeable valve seat as claimed in claim 1 is characterized in that: the valve seat cylindrical establish before and after two concave groove ，Qian roads, road be that the built-in O type Quan，Hou of O type ring recess road is the built-in fire-protection ring of fire prevention ring recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204147523U CN203322341U (en) | 2013-07-12 | 2013-07-12 | Wedge gate valve with replaceable valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204147523U CN203322341U (en) | 2013-07-12 | 2013-07-12 | Wedge gate valve with replaceable valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203322341U true CN203322341U (en) | 2013-12-04 |
Family
ID=49661693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204147523U Expired - Fee Related CN203322341U (en) | 2013-07-12 | 2013-07-12 | Wedge gate valve with replaceable valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203322341U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265928A (en) * | 2014-10-21 | 2015-01-07 | 成都市翻鑫家科技有限公司 | Sluice valve convenient to dismount |
| CN104500834A (en) * | 2014-12-15 | 2015-04-08 | 济南玫德铸造有限公司 | Valve with replaceable valve seat |
| CN105276214A (en) * | 2015-09-30 | 2016-01-27 | 浙江贝托阀门有限公司 | Sluice valve with replaceable valve seats |
| CN108278375A (en) * | 2018-01-31 | 2018-07-13 | 浙江三迪阀业有限公司 | A kind of manufacture craft of the easy-to-mount gate valve of valve seat and valve seat |
-
2013
- 2013-07-12 CN CN2013204147523U patent/CN203322341U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265928A (en) * | 2014-10-21 | 2015-01-07 | 成都市翻鑫家科技有限公司 | Sluice valve convenient to dismount |
| CN104500834A (en) * | 2014-12-15 | 2015-04-08 | 济南玫德铸造有限公司 | Valve with replaceable valve seat |
| CN104500834B (en) * | 2014-12-15 | 2016-08-17 | 济南玫德铸造有限公司 | A kind of valve of valve with changeable valve seat |
| CN105276214A (en) * | 2015-09-30 | 2016-01-27 | 浙江贝托阀门有限公司 | Sluice valve with replaceable valve seats |
| CN105276214B (en) * | 2015-09-30 | 2017-09-26 | 浙江贝托阀门有限公司 | The gate valve of valve with changeable valve seat |
| CN108278375A (en) * | 2018-01-31 | 2018-07-13 | 浙江三迪阀业有限公司 | A kind of manufacture craft of the easy-to-mount gate valve of valve seat and valve seat |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20180712 |