CN207687381U - A kind of low pressure heavy-caliber gate valve - Google Patents
A kind of low pressure heavy-caliber gate valve Download PDFInfo
- Publication number
- CN207687381U CN207687381U CN201721757002.0U CN201721757002U CN207687381U CN 207687381 U CN207687381 U CN 207687381U CN 201721757002 U CN201721757002 U CN 201721757002U CN 207687381 U CN207687381 U CN 207687381U
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- China
- Prior art keywords
- valve
- flashboard
- valve seat
- valve body
- cavity
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Abstract
The utility model is related to a kind of low pressure heavy-caliber gate valves.Valve seat is ring-type, and external screw thread is equipped on the concave surface outside valve seat；The two sides of flashboard lower end are cambered surface, front-back is plane, it is cavity between two cambered surfaces and two planes, flashboard upper end is that rectangular preiection block is equipped with screw hole on protruding block, and screw hole is communicated with flashboard cavity, and two valve seats are placed in valve body and are screwed together respectively with valve body, flashboard is placed between two valve seats, the lower end of valve rod is connect with flashboard, and valve deck covered the upper end of valve rod and valve body is fixed, and two valve seats form a sealing pair with flashboard.Valve seat uses thread connecting mode with valve seat, i.e., first will be tight dead among unprocessed valve seat screw-in valve body, then the valve part assembled is put into lathe, sealing surface vehicle is molded, the method valve seat is easily installed, and facilitates processing and sealing surface precision is higher, good airproof performance.Flashboard is cavity structure, and flashboard lighter in weight, material are more saved, and the strength controlled needed for flashboard is smaller.
Description
Technical field
The utility model is related to a kind of gate valve, more particularly to a kind of low pressure heavy-caliber gate valve.
Background technology
Currently, traditional gate valve generally comprises valve body, valve deck, flashboard, valve seat, valve rod, valve seat, general feelings are provided in valve body
Condition valve seat is welded in valve body, and difficulty of processing is larger, and required time is longer, and is susceptible to by non-uniform situation is welded, and is made
At valve seat annular strain, be not closed completely, leakage rate increase situations such as；Valve seat is configured with flashboard, and flashboard is set between two flashboards,
These general flashboards are manufactured using solid metal, and weight is larger, and it is larger to control strength needed for the flashboard, therefore control difficulty increasing
Add, and material cost is higher.
Invention content
Higher in view of prior art gate valve base difficulty of processing, working hour is longer, and flashboard weight is larger, controls the flashboard institute
Need strength larger, therefore the problems such as control difficulty increase, the utility model provides a kind of low pressure heavy-caliber gate valve, this gate valve is set
A kind of threaded connection valve seat and hollow gate structure have been counted, the technical problem to be solved is that providing a kind of flashboard lighter in weight,
Material is more saved, convenient for assembly and the preferable gate valve of leakproofness.
To achieve the above object, used technical solution is the utility model：A kind of low pressure heavy-caliber gate valve, including：
Valve body, valve seat, flashboard, valve rod, valve deck；It is characterized in that：In the valve body internal thread is respectively equipped in the concave surface of both sides；
The valve seat is ring-type, and external screw thread is equipped on the concave surface outside valve seat；
The two sides of the flashboard lower end are cambered surface, and front-back is plane, are cavity between two cambered surfaces and two planes,
Flashboard upper end is that rectangular preiection block is equipped with screw hole on protruding block, and screw hole is communicated with flashboard cavity, and two valve seats are placed in valve
It is screwed together respectively with valve body in vivo, flashboard is placed between two valve seats, and the lower end of valve rod is connect with flashboard, and valve deck covered valve
The upper end of bar is fixed with valve body, and two valve seats form a sealing pair with flashboard.
The utility model is characterized in that：Valve seat uses thread connecting mode with valve seat, i.e., first screws in unprocessed valve seat
It is tight dead among valve body, then the valve part assembled is put into lathe, sealing surface vehicle is molded, the method valve seat is easy to pacify
Dress, facilitates processing and sealing surface precision is higher, good airproof performance.
Flashboard is cavity（It is hollow）Structure, flashboard lower part are the outlet of cavity, and flashboard lighter in weight, material are more saved,
The strength controlled needed for flashboard is smaller, and processing is simple, easy for installation.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the utility model valve body；
Fig. 3 is the structural schematic diagram of the utility model valve seat；
Fig. 4 is the structural schematic diagram of the utility model flashboard；
Fig. 5 is the side view of the utility model flashboard；
Fig. 6 is the sectional view of the utility model flashboard.
Specific implementation mode
As shown in Figures 1 to 6, a kind of low pressure heavy-caliber gate valve, including：Valve body 1, valve seat 2, flashboard 3, valve rod 4, valve deck 5.
Internal thread 1-1 is respectively equipped in valve body 1 in the concave surface of both sides.
Valve seat 2 is ring-type, and external screw thread 2-1 is equipped on the concave surface outside valve seat 2.
The two sides of 3 lower end of flashboard are cambered surface 3-1, front-back be plane 3-2, two cambered surface 3-1 and two plane 3-2 it
Between be cavity 3-3,3 upper end of flashboard be rectangular preiection block 3-4 on protruding block 3-4 be equipped with screw hole 3-4-1, screw hole 3-4-1 and lock
3 cavity 3-3 of plate is communicated.
Two valve seats 2 are placed in valve body 1, are fixed on valve by the internal thread 1-1 cooperations of external screw thread 2-1 and valve body 1 respectively
In body 1, flashboard 3 is placed between two valve seats 2, and lower end and the 3 screw hole 3-4-1 of flashboard of valve rod 4 are screwed together, 5 sets of valve deck
The upper end of valve rod 4 is fixed on by several bolts on valve body 1, and two valve seats 2 form a sealing pair with flashboard 3.
Claims (1)
1. a kind of low pressure heavy-caliber gate valve, including valve body（1）, valve seat（2）, flashboard（3）, valve rod（4）, valve deck（5）；Its feature exists
In：The valve body（1）It is respectively equipped with internal thread in the concave surface of interior both sides（1-1）；
The valve seat（2）For ring-type, in valve seat（2）Outer concave surface is equipped with external screw thread（2-1）；
The flashboard（3）The two sides of lower end are cambered surface（3-1）, front-back is plane（3-2）, two cambered surfaces（3-1）With two
Plane（3-2）Between be cavity（3-3）, flashboard（3）Upper end is rectangular preiection block（3-4）In protruding block（3-4）It is equipped with screw hole
（3-4-1）, screw hole（3-4-1）With flashboard（3）Cavity（3-3）It communicates, two valve seats（2）It is placed in valve body（1）Inside respectively with
Valve body（1）It is screwed together, flashboard（3）It is placed in two valve seats（2）Between, valve rod（4）Lower end and flashboard（3）Connection, valve deck
（5）Covered valve rod（4）Upper end and valve body（1）It is fixed, two valve seats（2）With flashboard（3）Form a sealing pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721757002.0U CN207687381U (en) | 2017-12-15 | 2017-12-15 | A kind of low pressure heavy-caliber gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721757002.0U CN207687381U (en) | 2017-12-15 | 2017-12-15 | A kind of low pressure heavy-caliber gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207687381U true CN207687381U (en) | 2018-08-03 |
Family
ID=62997529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721757002.0U Active CN207687381U (en) | 2017-12-15 | 2017-12-15 | A kind of low pressure heavy-caliber gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207687381U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111412299A (en) * | 2020-04-03 | 2020-07-14 | 阳泉阀门股份有限公司 | Low-pressure large-caliber thin-wall cast steel gate valve and casting method |
| GB2614217A (en) * | 2021-06-30 | 2023-07-05 | Lb Bentley Ltd | Gate valve |
-
2017
- 2017-12-15 CN CN201721757002.0U patent/CN207687381U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111412299A (en) * | 2020-04-03 | 2020-07-14 | 阳泉阀门股份有限公司 | Low-pressure large-caliber thin-wall cast steel gate valve and casting method |
| GB2614217A (en) * | 2021-06-30 | 2023-07-05 | Lb Bentley Ltd | Gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200610 Address after: 300384 in Tianjin Binhai Huayuan Industrial Zone (outer ring) Haitai development two Road No. 1 Patentee after: ZHONGHUAN TIG Co.,Ltd. Address before: 300384 in Tianjin Binhai Huayuan Industrial Park Ring Road No. 18 building A, off the coast of Thailand Patentee before: TIANJIN JINGTONG CONTROL INSTRUMENT TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |