CN203757025U - Waterproof hammer gate valve - Google Patents
Waterproof hammer gate valve Download PDFInfo
- Publication number
- CN203757025U CN203757025U CN201420136090.2U CN201420136090U CN203757025U CN 203757025 U CN203757025 U CN 203757025U CN 201420136090 U CN201420136090 U CN 201420136090U CN 203757025 U CN203757025 U CN 203757025U
- Authority
- CN
- China
- Prior art keywords
- piston
- medium
- valve
- inner cavity
- cavity
- 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.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000013016 damping Methods 0.000 claims abstract description 9
- 230000008676 import Effects 0.000 claims description 7
- 230000006378 damage Effects 0.000 description 3
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Landscapes
- Details Of Valves (AREA)
Abstract
A waterproof hammer gate valve consists of a valve body, a gate plate, a valve rod, a valve cover, a piston and a spring. The gate plate is provided with a channel, and the channel divides the piston into an inner cavity and an outer cavity. The piston is arranged at the protruding position where the inner cavity and the outer cavity are connected and provided with a small damping hole. When the gate plate is opened, a medium flows into a medium inlet and shunted in a pipeline, a part of the medium flows to an outer cavity mouth through a pipeline port, medium pressure in the outer cavity pushes the piston to move upward, the spring in the inner cavity is extruded and accordingly pushes the piston reversely to enable water flow pressure to be reduced. When the medium pushes the piston, a part of the medium flows into the inner cavity through the small damping hole of the piston, and when the inner cavity is full of the medium, the medium in the inner cavity is extruded to flow from the small damping hole to the outer cavity and then flows out of a medium outlet after flowing through the outer cavity. The waterproof hammer gate valve has the advantages of being capable of reducing or avoiding water hammer water impact and meanwhile being simple in structure and convenient to maintain.
Description
Technical field
The utility model relates to gate valve, is specifically related to water hammer-resistant gate valve.
Background technique
Water hammer refers to that inner-walls of duct is smooth in water pipe inside, and water flow freely, when the valve of opening is closed suddenly, current produce a pressure to valve and tube wall, and because tube wall is smooth, follow-up current are under the effect of inertia, make pressure reach maximum, and produce destruction, and can be divided into again positive water hammer and negative water hammer according to the difference of force direction, water hammer is very large to the harm of pipeline, when serious, can cause pipeline breaking, valve body to damage, supply water and interrupt, cause serious economic loss.
Model utility content
The purpose of this utility model is to provide a kind of water hammer-resistant gate valve, and the utility model can reduce or avoid the generation of water hammer water attack, simultaneously simple in structure, keeps in repair more convenient.
The technological scheme that the utility model relates to:
Water hammer-resistant gate valve, is made up of valve body, flashboard, valve rod, valve gap, piston and spring.
Described valve body top and valve gap are bolted to connection.Described valve gap has tapped through hole, and tapped through hole matches with threaded stem, makes valve rod rotation, thereby valve rod can be moved up and down by rotatable handle.
Described flashboard top has a cylinder shape groove, and valve rod bottom is provided with a cylindrical bump, and projection can be embedded in groove, when valve rod moves up and down, can drive ram movement.
In described flashboard, have a passage, passage is divided into inner chamber and exocoel by piston.Described piston is placed in the high spot that inner chamber is connected with exocoel, has a damping hole on described piston; Described spring one end and internal chamber wall are close to, and the other end and piston are close to, and internal chamber wall and piston have protruding fixing spring, and spring is not offset.
Described flashboard bottom has a pipeline opening by medium import one side, and medium can flow into from medium import, in pipeline opening flows to exocoel.
The utility model has the advantages that: can reduce or avoid the generation of water hammer water attack, simultaneously simple in structure, keep in repair more convenient.
Brief description of the drawings
Fig. 1 is complete section structural representation of the present utility model.
Wherein: 1. valve body, 2. flashboard, 3. valve rod, 4. valve gap, 5. inner chamber, 6. exocoel, 7. piston, 8. damping hole, 9. spring, 10. pipeline opening, 11. medium imports, 12. media outlets.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, water hammer-resistant gate valve, is made up of valve body 1, flashboard 2, valve rod 3, valve gap 4, piston 7 and spring 9 the utility model.
Described valve body 1 top and valve gap 4 are bolted to connection.Described valve gap 4 has tapped through hole, and tapped through hole matches with valve rod 3 screw threads, by rotatable handle, valve rod 3 is rotated, thereby valve rod 3 can be moved up and down.
Described flashboard 2 tops have a cylinder shape groove, and valve rod 3 bottoms are provided with a cylindrical bump, and projection can be embedded in groove, can drive flashboard 2 to move when valve rod 3 moves up and down.
In described flashboard 2, have a passage, passage is divided into inner chamber 5 and exocoel 6 by piston 7.Described piston 7 is placed in the high spot that inner chamber 5 is connected with exocoel 6, has a damping hole 8 on described piston 7; Described spring 9 one end and inner chamber 5 walls are close to, and the other end and piston 7 are close to, and internal chamber wall and piston 7 have protruding fixing spring 9, and spring 9 is not offset.
Described flashboard 2 bottoms have a pipeline opening 10 by medium import 11 1 sides, and medium can flow into from medium import 11, in pipeline opening 10 flows to exocoel 6.
In the time that flashboard 2 is opened, medium flows into from medium import 11, shunts at pipeline, part medium flows to 6 mouthfuls of exocoels through pipeline opening 10, pressure medium in exocoel 6 promotes piston 7 and moves upward, and the anti-push piston 7 that is squeezed of the spring 9 in inner chamber makes the pressure relieving of current; When medium promotes piston 7, the damping hole 8 of part medium from piston 7 flows into inner chamber 5, in the time that inner chamber 5 is full of medium, medium in inner chamber 5 is squeezed and flows to exocoel 6 from damping hole 8, MEDIA FLOW flows out from media outlet 12 after exocoel 6, make the pressure relieving of medium, thereby slow down or avoid water hammer water attack.
Claims (1)
1. water hammer-resistant gate valve, by valve body (1), flashboard (2), valve rod (3), valve gap (4), piston (7) and spring (9) composition, it is characterized in that: described flashboard has a passage in (2), passage is divided into inner chamber (5) and exocoel (6) by piston (7), described piston (7) is placed in the high spot that inner chamber (5) is connected with exocoel (6), on described piston (7), have a damping hole (8), described spring (9) one end and inner chamber (5) wall are close to, the other end and piston (7) are close to, described flashboard (2) bottom has a pipeline opening (10) by medium import (11) one sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420136090.2U CN203757025U (en) | 2014-03-17 | 2014-03-17 | Waterproof hammer gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420136090.2U CN203757025U (en) | 2014-03-17 | 2014-03-17 | Waterproof hammer gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203757025U true CN203757025U (en) | 2014-08-06 |
Family
ID=51252304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420136090.2U Expired - Fee Related CN203757025U (en) | 2014-03-17 | 2014-03-17 | Waterproof hammer gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203757025U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757321A (en) * | 2016-04-26 | 2016-07-13 | 西安航天动力试验技术研究所 | Fast closing valve used for generating water attack pressure |
| CN110671502A (en) * | 2019-09-03 | 2020-01-10 | 广州大学 | Water hammer resistant stop valve |
-
2014
- 2014-03-17 CN CN201420136090.2U patent/CN203757025U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757321A (en) * | 2016-04-26 | 2016-07-13 | 西安航天动力试验技术研究所 | Fast closing valve used for generating water attack pressure |
| CN105757321B (en) * | 2016-04-26 | 2018-03-13 | 西安航天动力试验技术研究所 | For quick closing valve valve caused by surge pressure |
| CN110671502A (en) * | 2019-09-03 | 2020-01-10 | 广州大学 | Water hammer resistant stop valve |
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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 |
Granted publication date: 20140806 Termination date: 20150317 |
|
| EXPY | Termination of patent right or utility model |