CN208123528U - A kind of swing check valve - Google Patents
A kind of swing check valve Download PDFInfo
- Publication number
- CN208123528U CN208123528U CN201820231461.3U CN201820231461U CN208123528U CN 208123528 U CN208123528 U CN 208123528U CN 201820231461 U CN201820231461 U CN 201820231461U CN 208123528 U CN208123528 U CN 208123528U
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- Prior art keywords
- valve
- valve body
- flap
- annular plate
- sealing cover
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- Check Valves (AREA)
Abstract
The utility model relates to check-valves technical fields, especially a kind of swing check valve, including the horizontal valve body put and left and right communicates, the valve body upper end is equipped with valve deck, the valve deck is fastened by bolts on valve body, flap is equipped among the valve body at valve port, stud is connected on the flap, it is arranged with valve rod on the stud and passes through nut check, the valve rod is rotatably connected in valve body, buffer gear is equipped at the valve port of the valve body, several springs are connected in the annular groove, the spring other end is fixed on annular plate, the collar flange end thread is connected with sealing cover, the annular plate runs through sealing cover, the sealing cover and annular plate contact position are equipped with several O-ring seals.The noise generated when flap closure is effectively reduced in the utility model, and effectively extends whole device service life, reduces the number of maintenance and replacement component, reduces maintenance cost.
Description
Technical field
The utility model relates to check-valves technical field more particularly to a kind of swing check valves.
Background technique
Swing check valve is also known as check valve or non-return valve, and effect is to prevent the medium in pipeline from flowing backwards.Opening and closing element leans on
Media flow and strength voluntarily open or close, to prevent the valve of medium refluence check-valves.Check-valves belongs to automatic valve class,
It is mainly used on the pipeline of medium one-way flow, only medium is allowed to flow to a direction, to try to avert accidents.This class valve
It should generally be horizontally mounted in the duct.
When pipeline stops suddenly, flap will plunk down under the effect of gravity, and flap is heavy to be pounded on valve body,
Noise or the unexpected adverse current of fluid are generated, flap is also resulted in and valve body collides, generate noise.
Utility model content
The shortcomings that generating noise when being closed purpose of the utility model is to solve flap in the prior art, and propose
A kind of swing check valve.
To achieve the goals above, the utility model uses following technical solution：
A kind of swing check valve is designed, including the horizontal valve body put and left and right communicates, the valve body upper end is equipped with valve
Lid, the valve deck are fastened by bolts on valve body, are equipped with flap among the valve body at valve port, are connected with spiral shell on the flap
Column, valve rod is arranged on the stud and by nut check, and the valve rod is rotatably connected in valve body, the valve port of the valve body
Place is equipped with buffer gear, and the buffer gear includes the collar flange being fixed on valve body, offers ring on the collar flange
Connected in star is inserted with annular plate in the annular groove, several springs is connected in the annular groove, the spring is another
End is fixed on annular plate, and the collar flange end thread is connected with sealing cover, and the annular plate runs through sealing cover, described close
Capping is equipped with several O-ring seals with annular plate contact position.
It when flap is fallen naturally, will strike on annular plate, annular plate is shunk, and impact force is absorbed by spring, has
Effect reduces the noise that flap falls generation, and under the action of buffer gear, effectively extends flap service life, reduces maintenance
Replace number.
Preferably, the valve deck threaded upper ends are connected with hoisting ring.
Preferably, the valve deck bottom surface is connected with the elastic telescopicing rod of vertical display, flap by fluid greater impact power,
It is quickly rotated up, under elastic telescopicing rod effect, flap is effectively prevent to strike valve deck or other positions.
Preferably, one end of the annular plate and valve flap contacts is equipped with elastic ring.
The utility model proposes a kind of swing check valve, beneficial effect is：Flap is effectively reduced in the utility model
The noise generated when closure, and effectively extend whole device service life, the number of maintenance and replacement component is reduced, dimension is reduced
Accomplish this.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the buffer gear structural schematic diagram of the utility model.
In figure：Elastic telescopicing rod 1, hoisting ring 2, valve rod 3, valve deck 4, bolt 5, valve body 6, buffer gear 7, flap 8, stud
9, elastic ring 10, annular plate 11, sealing cover 12, O-ring seal 13, collar flange 14, spring 15, annular groove 16.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
Referring to Fig.1-2, a kind of swing check valve, including the horizontal valve body 6 put and left and right communicates, 6 upper end of valve body is set
There is valve deck 4,4 threaded upper ends of valve deck are connected with hoisting ring 2, and valve deck 4 is fastened on valve body 6 by bolt 5, and 4 bottom surface of valve deck is affixed
There is the elastic telescopicing rod 1 of vertical display, flap 8 is quickly rotated up by fluid greater impact power, is made in elastic telescopicing rod 1
Under, flap 8 is effectively prevent to strike valve deck 4 or other positions, flap 8 is equipped at the intermediate valve port of valve body 6, is consolidated on flap 8
It is connected to stud 9, valve rod 3 is arranged on stud 9 and passes through nut check, valve rod 3 is rotatably connected in valve body 6, the valve port of valve body 6
Place is equipped with buffer gear 7, and buffer gear 7 includes the collar flange 14 being fixed on valve body 6, offers annular on collar flange 14
Groove 16 is inserted with annular plate 11 in annular groove 16, several springs 15,15 other end of spring is connected in annular groove 16
It is fixed on annular plate 11,14 end thread of collar flange is connected with sealing cover 12, and annular plate 11 runs through sealing cover, sealing cover 12
Several O-ring seals 13 are equipped with 11 contact position of annular plate, one end that annular plate 11 is contacted with flap 8 is equipped with elastic ring 10.
It when flap 8 is fallen naturally, will strike on annular plate 11, annular plate 11 is shunk, and impact force is by spring 15
It absorbs, the noise that flap 8 falls generation is effectively reduced, and under the action of buffer gear 7, effectively extend flap 8 and use the longevity
Life reduces maintenance replacement number.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (4)
1. a kind of swing check valve, including the horizontal valve body (6) put and left and right communicates, valve body (6) upper end is equipped with valve
It covers (4), the valve deck (4) is fastened on valve body (6) by bolt (5), flap (8) are equipped at the intermediate valve port of the valve body (6),
It is connected with stud (9) on the flap (8), valve rod (3) is arranged on the stud (9) and by nut check, the valve rod
(3) it is rotatably connected in valve body (6), which is characterized in that be equipped with buffer gear (7) at the valve port of the valve body (6), the buffering
Mechanism (7) includes the collar flange (14) being fixed on valve body (6), offers annular groove on the collar flange (14)
(16), it is inserted with annular plate (11) in the annular groove (16), is connected with several springs in the annular groove (16)
(15), spring (15) other end is fixed on annular plate (11), and collar flange (14) end thread is connected with sealing
It covers (12), the annular plate (11) runs through sealing cover, and the sealing cover (12) is O-shaped equipped with several with annular plate (11) contact position
Sealing ring (13).
2. a kind of swing check valve according to claim 1, which is characterized in that valve deck (4) the threaded upper ends connection
There are hoisting ring (2).
3. a kind of swing check valve according to claim 1, which is characterized in that valve deck (4) bottom surface is connected with perpendicular
The elastic telescopicing rod (1) directly put.
4. a kind of swing check valve according to claim 1, which is characterized in that the annular plate (11) and flap (8)
One end of contact is equipped with elastic ring (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820231461.3U CN208123528U (en) | 2018-02-09 | 2018-02-09 | A kind of swing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820231461.3U CN208123528U (en) | 2018-02-09 | 2018-02-09 | A kind of swing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208123528U true CN208123528U (en) | 2018-11-20 |
Family
ID=64207547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820231461.3U Active CN208123528U (en) | 2018-02-09 | 2018-02-09 | A kind of swing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208123528U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738921A (en) * | 2021-08-25 | 2021-12-03 | 浙江大学 | Safety valve structure and method for avoiding valve clack impact during opening and closing |
-
2018
- 2018-02-09 CN CN201820231461.3U patent/CN208123528U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738921A (en) * | 2021-08-25 | 2021-12-03 | 浙江大学 | Safety valve structure and method for avoiding valve clack impact during opening and closing |
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| GR01 | Patent grant |