CN205559887U - Anti cavitation erosion check valve - Google Patents
Anti cavitation erosion check valve Download PDFInfo
- Publication number
- CN205559887U CN205559887U CN201620261537.8U CN201620261537U CN205559887U CN 205559887 U CN205559887 U CN 205559887U CN 201620261537 U CN201620261537 U CN 201620261537U CN 205559887 U CN205559887 U CN 205559887U
- Authority
- CN
- China
- Prior art keywords
- case
- check valve
- spring
- spool
- valve
- 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.)
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Links
- 230000003628 erosive effect Effects 0.000 title abstract description 4
- 230000007704 transition Effects 0.000 claims abstract description 15
- 239000012530 fluid Substances 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 abstract description 9
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Details Of Valves (AREA)
Abstract
The utility model relates to an anti cavitation erosion check valve, including the internal fluid channel's that has its axis extend of edge who confirms valve body, set up the case in valve body internal fluid channel, seted up the spring cavity along its axial lead direction in the case install the spring in the spring cavity, the one end of spring top is supported on the bottom surface of spring cavity, and the case is the cone valve core, be provided with on the case with the cone valve core before the same transition cylindrical section of terminal surface diameter, be provided with the toper section at the front end of transition cylindrical section, and the bell mouth has been seted up on the terminal surface of toper section, case, transition cylindrical section, toper section form with the liquid stream cavity jointly. The utility model discloses a be provided with transition cylindrical section and toper section to form a liquid stream cavity with the case, the flow force that can compensation fluid flows improves the commutating speed of case, through being provided with the bell mouth, can improve the anti cavitation erosion ability of case.
Description
Technical field
This utility model relates to valve class technical field, particularly relates to a kind of anti-cavitation check valve.
Background technology
Hydraulic valve is the Automation Elements of a kind of pressure oil operation, and it is by distributing valve pressure oil
Control, be generally applied in combination with electromagnetic distributing valve, can be used for distant control power station
Oil, the break-make of gas and water pipe-line system.Be usually used in clamping, control, the oil circuit such as lubrication.Liquid
Pressure valve is divided into direction valve, flow valve, pressure valve etc..Check valve belongs to the one of direction valve,
Check valve is mainly used to control liquid stream one way flow, conventional check valve in hydraulic system
It is divided into common check valve and hydraulic control one-way valve two class.Common check valve work in hydraulic system
With being only to allow liquid stream to pass through along one direction of pipeline, the flowing in another direction is then cut
Only, according to the difference of runner, common check valve has through type and right-angle type two kinds typical case's knot
Structure.Straight check valve liquid stream import and export runner and communicate, therefore generally tubular type is installed even
Connect (Taper Pipe or straight pipe thread hole by valve body two ends are connected in system) with pipe joint.
The spool of check valve has ball-valve type and two kinds of forms of cone valve type.
At present during the use of check valve, spool, when opening, can produce cavitation erosion existing
As, thus affect the serviceability of spool, reduce the service life of check valve.Liquid stream simultaneously
The hydraulic power that impact produces can not get compensating, thus affects the commutating speed of spool.
Utility model content
This utility model is in order to overcome deficiency of the prior art, it is provided that a kind of anti-cavitation list
To valve.
This utility model is to be achieved through the following technical solutions:
A kind of anti-cavitation check valve, including with an internal flow extended along its axis determined
The valve body of body passage, the spool being arranged in valve inner fluid passage, edge in described spool
Its direction of axis line offers spring cavity, is provided with spring in described spring cavity, spring
One end contact is on the bottom surface of spring cavity, and spool is poppet valve core, and described spool is provided with
The transition circle shell of column identical with poppet valve core front end face diameter, is arranged in the front end of transition circle shell of column
There is conical section, and offer bellmouth on the end face of described conical section.
As optimal technical scheme of the present utility model, described spool, transition circle shell of column, cone
Shape section is collectively forming with flow chamber.
As optimal technical scheme of the present utility model, the degree of depth of described bellmouth is 3mm-
8mm。
As optimal technical scheme of the present utility model, the lower end of described valve body is provided with interior
The inlet that fluid passage, portion communicates.
Compared with prior art, the beneficial effects of the utility model are: this utility model leads to
Cross and be provided with transition circle shell of column and conical section, thus form a flow chamber, energy with spool
Enough compensate the hydraulic power of liquid stream, improve the commutating speed of spool, be provided by bellmouth,
The anti-cavitation ability of spool can be improved.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, with
Lower combination drawings and Examples, are further elaborated to this utility model.Should manage
Solving, specific embodiment described herein only in order to explain this utility model, is not used to
Limit this utility model.
Referring to Fig. 1, Fig. 1 is structural representation of the present utility model.
Described a kind of anti-cavitation check valve, including determine with one extend along its axis in
The valve body 1 of fluid passage, portion 2, the spool 3 being arranged in valve body 1 internal fluid channels 2,
Spring cavity 4 is offered along its direction of axis line, in described spring cavity 4 in described spool 3
Being provided with spring 5, one end contact of spring 5 is on the bottom surface of spring cavity 4, and spool 3 is
Poppet valve core, the lower end of described valve body 1 is provided with the inlet communicated with internal fluid channels 2
10。
The transition circle shell of column identical with poppet valve core front end face diameter it is provided with on described spool 3
6, conical section 7 it is provided with in the front end of transition circle shell of column 6, and at the end of described conical section 7
Bellmouth 8, described spool 3, transition circle shell of column 6, the common shape of conical section 7 is offered on face
Becoming with flow chamber 9, the degree of depth of described bellmouth 8 is 3mm-8mm.It is provided by
Transition circle shell of column 6 and conical section 7, thus form a flow chamber 9 with spool 3, it is possible to
Compensate the hydraulic power of liquid stream, improve the commutating speed of spool 3, be provided by bellmouth
8, it is possible to increase the anti-cavitation ability of spool 3.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this practicality
Novel, all made within spirit of the present utility model and principle any amendment, equivalent replace
Change and improvement etc., within should be included in protection domain of the present utility model.
Claims (4)
1. an anti-cavitation check valve, leads to including with an internal flow extended along its axis determined
The valve body (1) in road (2), the spool (3) being arranged in valve body (1) internal fluid channels (2),
Spring cavity (4) is offered along its direction of axis line, in described spring cavity (4) in described spool (3)
Spring (5) is inside installed, one end contact of spring (5) on the bottom surface of spring cavity (4), spool
(3) it is poppet valve core, it is characterised in that: it is provided with and poppet valve core front end face on described spool (3)
The transition circle shell of column (6) that diameter is identical, is provided with conical section (7) in the front end of transition circle shell of column (6),
And on the end face of described conical section (7), offer bellmouth (8).
A kind of anti-cavitation check valve the most according to claim 1, it is characterised in that: described spool
(3), transition circle shell of column (6), conical section (7) are collectively forming with flow chamber (9).
A kind of anti-cavitation check valve the most according to claim 1, it is characterised in that: described taper
The degree of depth in hole (8) is 3mm-8mm.
A kind of anti-cavitation check valve the most according to claim 1, it is characterised in that: described valve body
(1) lower end is provided with the inlet (10) communicated with internal fluid channels (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620261537.8U CN205559887U (en) | 2016-03-31 | 2016-03-31 | Anti cavitation erosion check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620261537.8U CN205559887U (en) | 2016-03-31 | 2016-03-31 | Anti cavitation erosion check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205559887U true CN205559887U (en) | 2016-09-07 |
Family
ID=56812434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620261537.8U Active CN205559887U (en) | 2016-03-31 | 2016-03-31 | Anti cavitation erosion check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205559887U (en) |
-
2016
- 2016-03-31 CN CN201620261537.8U patent/CN205559887U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Yunxian Inventor before: Xu Yuxian |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170316 Address after: 511660 South Road, Guangdong, Tianhe District, No. 70 South Road, room 620A Patentee after: Guangzhou Hua Yue Electric Material Co. Ltd. Address before: 311800 Zhejiang city of Shaoxing province Zhuji city Ciwu town Langzhong Village Street Town shop should be purple Patentee before: Xu Yuxian |
|
| TR01 | Transfer of patent right |