CN205896289U - Check valve - Google Patents
Check valve Download PDFInfo
- Publication number
- CN205896289U CN205896289U CN201620678588.0U CN201620678588U CN205896289U CN 205896289 U CN205896289 U CN 205896289U CN 201620678588 U CN201620678588 U CN 201620678588U CN 205896289 U CN205896289 U CN 205896289U
- Authority
- CN
- China
- Prior art keywords
- valve
- water inlet
- axial
- water
- valve body
- 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
Abstract
The utility model provides a check valve, includes valve body, valve clack and valve gap, the valve body include water inlet, delivery port and be located the water inlet and the delivery port between the valve pocket, the axial of water inlet and the coincidence of the axial of delivery port, the valve gap is connected with body seals, the axial of valve gap and the axial vertical of water inlet, the valve clack is located the valve pocket, the valve body is provided with the disk seat in the inside of valve pocket regularly, the axial of disk seat and the contained angle of the axial cheng du of water inlet to the degree, the upper end of valve clack is articulated with the left end lower part of valve gap, valve clack and valve seat seal cooperation, the valve body in the valve pocket on disk seat right side along the axial fixity of perpendicular to water inlet be provided with the convex part that the section is down the V -arrangement, the upper end of convex part is less than the horizontal plane at the axis place of water inlet. This check valve water removes the effect ideal of " water hammer ", in the termination of pumping or when cutting off the power supply suddenly the time of medium refluence short, can reduce the water pump effectively and act on the harm that causes because of " water hammer ".
Description
Technical field
This utility model is related to a kind of check-valves.
Background technology
In discharge pipe line, for " the water preventing the fluid in pipeline when termination of pumping or unexpected power-off from flowing back suddenly and being formed
Hammer " damages to equipment, installs check-valves generally on pump outlet pipeline.Existing check-valves eliminate the effect of " water hammer "
Really undesirable, in termination of pumping or unexpected power-off, medium refluence duration is longer, holds very much in the case that pipeline pressure is larger
Easily water pump is caused damage.
Content of the invention
The problem existing for above-mentioned prior art, this utility model provides a kind of check-valves, and this check-valves water removes " water
The effect of hammer " is preferable, and the time that medium flows backwards in termination of pumping or unexpected power-off is short, can effectively reduce water pump and act on because of " water hammer "
And the infringement causing.
To achieve these goals, this utility model provides a kind of check-valves, including valve body, flap and valve gap, valve body bag
Include water inlet, outlet and the valve pocket being located between water inlet and outlet, the axial direction of water inlet is axially coincident with outlet,
Described valve gap is connected with valve seal, and valve gap is arranged with the axial direction of water inlet with paralleling, and described flap is located in valve pocket, described
Valve body has been fixedly disposed valve seat in the inside of valve pocket, and the axial direction of described valve seat arrives, with the axial Cheng Du of water inlet, the angle spent,
The upper end of described flap and the left end lower hinge of valve gap, described flap is coordinated with valve base sealing, and described valve body is on the right side of valve seat
Valve pocket in along perpendicular to water inlet axial restraint be provided with section be in the shape of falling v protuberance, the upper end of described protuberance is less than
The horizontal plane that the axis of water inlet is located.
In this technical scheme, by being provided with the protuberance in the shape of falling v on the right side of valve seat, can stop suddenly transporting in water pump
Turn or unexpected power-off in the case of, when flowing through protuberance, protuberance reduces the latus rectum of valve pocket to the water making refluence, thus the water flowing backwards
Speed can be accelerated, then swings to effect by protuberance right flank, makes the water noted rapidly act on flap right flank, and then permissible
Flap is made promptly to coordinate near valve seat and with valve base sealing.This check-valves can effectively shorten the refluence time of medium in valve pocket,
Thus can effectively reduce the infringement that water pump causes because " water hammer " acts on.
Further, the weight overall in order to reduce this check-valves, described flap is made up of nitrile rubber.
Further, in order to improve the susceptiveness of flap action, the lower end upper surface of described flap has been fixedly disposed counterweight
Block, so can accelerate the time that flap is adjacent to valve seat in the case of water pump stopping suddenly or power-off.
Further, horizontal by 45 degree of angles, such water pump can subtract in drainage procedure the left surface of described protuberance
, to the resistance formed in exiting water process, the right flank of protuberance, so can be in medium horizontal by 135 degree of angles for little protuberance
During refluence, good guide effect is played to the flow direction of medium, act rapidly on flap such that it is able to change the flow direction of medium
Right flank.
Brief description
Fig. 1 is structural representation of the present utility model.
In figure: 1, valve body, 2, flap, 3, valve gap, 4, water inlet, 5, outlet, 6, valve pocket, 7, valve seat, 8, protuberance, 9,
Balancing weight.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of check-valves, including valve body 1, flap 2 and valve gap 3, valve body 1 includes water inlet 4, outlet 5
And the valve pocket 6 between water inlet 4 and outlet 5, the axial direction of water inlet 4 is axially coincident with outlet 5, described valve gap 3
It is tightly connected with valve body 1, valve gap 3 is arranged with the axial direction of water inlet 4 with paralleling, described flap 2 is located in valve pocket 6, described valve
Body 1 has been fixedly disposed valve seat 7 in the inside of valve pocket 6, and the axial direction of described valve seat 7 becomes 30 degree to 45 degree with the axial direction of water inlet 4
Angle, the upper end of described flap 2 and the left end lower hinge of valve gap 3, described flap 2 and valve seat 7 sealing cooperation, described valve body
1 is provided with, along the axial restraint perpendicular to water inlet 4, the protuberance 8 that section is in the shape of falling v in the valve pocket 6 on valve seat 7 right side, described
The upper end of protuberance 8 is less than the horizontal plane that the axis of water inlet 4 is located.By being provided with the protuberance 8 in the shape of falling v on the right side of valve seat 7,
Can water pump shut down suddenly or unexpected power-off in the case of, when flowing through protuberance 8, protuberance 8 reduces the water making refluence
The latus rectum of valve pocket 6, thus flow backwards water speed can accelerate, then by protuberance 8 right flank swing to effect, make the water noted rapid
Act on flap 2 right flank, and then flap 2 can be made promptly to seal cooperation near valve seat 7 and with valve seat 7.This check-valves energy
Effectively shorten the refluence time of medium in valve pocket, thus can effectively reduce the infringement that water pump causes because " water hammer " acts on.
The weight overall in order to reduce this check-valves, described flap 2 is made up of nitrile rubber.
In order to improve the susceptiveness of flap 2 action, the lower end upper surface of described flap 2 has been fixedly disposed balancing weight 9.This
Sample can accelerate the time that flap 2 is adjacent to valve seat 7 in the case of water pump stopping suddenly or power-off.
Horizontal by 45 degree of angles, such water pump can reduce protuberance 8 in drainage procedure to the left surface of described protuberance 8
To the resistance formed in exiting water process, the right flank of protuberance 8, horizontal by 135 degree of angles, so can flow backwards in medium
When good guide effect is played to the flow direction of medium, act rapidly on flap 2 such that it is able to change the flow direction of medium
Right flank.
Claims (4)
1. a kind of check-valves, including valve body (1), flap (2) and valve gap (3), valve body (1) includes water inlet (4), outlet (5)
And the valve pocket (6) between water inlet (4) and outlet (5), the axial direction of water inlet (4) is axially coincident with outlet (5),
Described valve gap (3) and valve body (1) are tightly connected, and valve gap (3) is arranged with the axial direction of water inlet (4) with paralleling, described flap (2)
It is characterised in that described valve body (1) has been fixedly disposed valve seat (7), described valve in the inside of valve pocket (6) in valve pocket (6)
The axial direction of seat (7) becomes 30 degree to 45 degree of angle, the upper end of described flap (2) and a left side for valve gap (3) with the axial direction of water inlet (4)
End lower hinge, described flap (2) and valve seat (7) sealing cooperation, described valve body (1) edge in the valve pocket (6) on the right side of valve seat (7)
Perpendicular to water inlet (4) axial restraint be provided with the protuberance (8) that section is in the shape of falling v, the upper end of described protuberance (8) be less than into
The horizontal plane that the axis at the mouth of a river (4) is located.
2. a kind of check-valves according to claim 1 are it is characterised in that described flap (2) is made up of nitrile rubber.
3. a kind of check-valves according to claim 1 and 2 are it is characterised in that the lower end upper surface of described flap (2) is fixed
Be provided with balancing weight (9).
4. a kind of check-valves according to claim 3 it is characterised in that described protuberance (8) left surface horizontal by
45 degree of angles, the right flank of protuberance (8) is horizontal by 135 degree of angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620678588.0U CN205896289U (en) | 2016-07-01 | 2016-07-01 | Check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620678588.0U CN205896289U (en) | 2016-07-01 | 2016-07-01 | Check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205896289U true CN205896289U (en) | 2017-01-18 |
Family
ID=57770579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620678588.0U Expired - Fee Related CN205896289U (en) | 2016-07-01 | 2016-07-01 | Check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205896289U (en) |
-
2016
- 2016-07-01 CN CN201620678588.0U patent/CN205896289U/en not_active Expired - Fee Related
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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: 20170118 Termination date: 20170701 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |