CN216519796U - Double-core one-way valve for controlling fluid direction in hydraulic system - Google Patents
Double-core one-way valve for controlling fluid direction in hydraulic system Download PDFInfo
- Publication number
- CN216519796U CN216519796U CN202122557156.8U CN202122557156U CN216519796U CN 216519796 U CN216519796 U CN 216519796U CN 202122557156 U CN202122557156 U CN 202122557156U CN 216519796 U CN216519796 U CN 216519796U
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- Prior art keywords
- main
- valve
- spool
- core
- holding tank
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- Expired - Fee Related
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 230000009977 dual effect Effects 0.000 claims 2
- 239000010720 hydraulic oil Substances 0.000 description 11
- 239000003921 oil Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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Abstract
The utility model discloses a double-core one-way valve for controlling the direction of fluid in a hydraulic system, which solves the problem of large pressure loss of the hydraulic system and has the technical scheme that the key points are as follows: the valve comprises a valve body, the inside main valve core that is provided with of valve body, the inside holding tank that is provided with of main valve core, be provided with the secondary valve core in the holding tank, be provided with main spring between main valve core and the valve body, be provided with inferior spring between secondary valve core and the valve body, inferior spring be located inside the main spring, main valve core holding tank side be provided with out the liquid hole, the holding tank top be provided with the feed liquor hole, feed liquor hole and holding tank intercommunication. The purpose of reducing pressure loss is achieved.
Description
Technical Field
The utility model belongs to the technical field of hydraulic systems, and particularly relates to a double-core one-way valve for controlling the direction of fluid in a hydraulic system.
Background
The check valve is used as a valve for controlling the flowing direction of oil in a hydraulic system, and is mainly used for controlling the oil to flow in one direction, and when the oil reversely flows in, the sealing performance of a valve port is good, and no leakage exists. And no vibration, impact and noise are needed during working. The structure and the working principle of the check valve are simple, but one of more elements is applied in a hydraulic system, and the correct and reasonable selection and application of the check valve can enable the hydraulic system to meet different working occasions.
At present, the one-way valves on the market are divided into a ball valve type and a cone valve type, wherein the cone valve type one-way valve has good guidance and reliable sealing in the aspect of reverse sealing performance, so the cone valve type one-way valve is widely applied, but the pressure loss of the cone valve type one-way valve is larger, so that the research on how to reduce the pressure loss of the cone valve type one-way valve plays an important role in the working efficiency of a hydraulic system.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a double-core one-way valve capable of reducing pressure loss.
The purpose of the utility model is realized as follows: the utility model provides a two core check valves of control fluid direction in hydraulic system, includes valve body (5), valve body (5) inside is provided with main valve element (1), main valve element (1) inside be provided with holding tank (6), be provided with time case (2) in holding tank (6), be provided with main spring (3) between main valve element (1) and valve body (5), be provided with time spring (4) between time case (2) and valve body (5), time spring (4) be located inside main spring (3), main valve element (1) holding tank (6) side be provided with out liquid hole (7), holding tank (6) top be provided with feed liquor hole (8), feed liquor hole (8) and holding tank (6) intercommunication.
Furthermore, the number of the liquid outlet holes (7) is 4, and the liquid outlet holes are uniformly distributed around the main valve core (1).
Furthermore, the main valve core (1) is provided with a first clamping groove, one end of the main spring (3) is positioned in the first clamping groove, the secondary valve core (2) is provided with a second clamping groove, and one end of the secondary spring (4) is positioned in the second clamping groove.
Furthermore, the main valve core (1) is in clearance fit with the valve body (5), and the secondary valve core (2) is in clearance fit with the main valve core (1).
Furthermore, the tops of the main valve core (1) and the secondary valve core (2) are both conical.
Compared with the prior art, the utility model has the outstanding and beneficial technical effects that: when the oil pushes the one-way valve open, the inner valve core is also opened, the hydraulic oil continues to circulate from the gap between the main valve core and the valve body, and the secondary valve core can be jacked open at a position with larger pressure loss of the hydraulic oil and flows out through the inner flow passage of the main valve core, so that the pressure loss of the hydraulic oil is reduced, the circulation area of the hydraulic oil is increased under the design of 'double-core', the sealing performance of the hydraulic oil can be ensured when the hydraulic oil is reversely cut off, and the cost and the weight are reduced because the inner valve core is not easy to damage and can also be made of non-metallic materials; and because its structure is comparatively simple, it is comparatively convenient to process, so low in production cost, strong adaptability to applicable cooperation use with other valves in the check valve.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic illustration of a main spool construction of the present invention;
FIG. 3 is a cross-sectional view of a main spool of the present invention.
In the figure: 1. a main valve element; 2. a secondary valve core; 3. a main spring; 4. a secondary spring; 5. a valve body; 6. accommodating grooves; 7. a liquid outlet hole; 8. and a liquid inlet hole.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following description, with reference to the drawings in the embodiments of the present invention, clearly and completely describes the technical solution in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The utility model provides a double-core one-way valve for controlling the direction of fluid in a hydraulic system, which comprises a valve body 5, wherein a main valve core 1 is arranged in the valve body 5, the main valve core 1 is in clearance fit with the valve body 5, an accommodating groove 6 is arranged in the main valve core 1, a secondary valve core 2 is arranged in the accommodating groove 6, the secondary valve core 2 is in clearance fit with the main valve core 1, and the tops of the main valve core 1 and the secondary valve core 2 are both conical;
the valve is characterized in that a main spring 3 is arranged between the main valve element 1 and the valve body 5, the main valve element 1 is provided with a first clamping groove, one end of the main spring 3 is positioned in the first clamping groove, the main spring 3 is in clearance fit with the main valve element 1, a secondary spring 4 is arranged between the secondary valve element 2 and the valve body 5, the secondary spring 4 is positioned in the main spring 3, the secondary valve element 2 is provided with a second clamping groove, one end of the secondary spring 4 is positioned in the second clamping groove, the secondary spring 4 is in clearance fit with the secondary valve element 2, and the main spring 3 and the secondary spring 4 are in parallel connection and respectively act on the two valve elements. The sum of the forces of the two springs is equal to the force of one spring of the traditional check valve.
The side surface of the main valve element 1 accommodating groove 6 is provided with a liquid outlet hole 7, the top of the accommodating groove 6 is provided with a liquid inlet hole 8, the liquid inlet hole 8 is communicated with the accommodating groove 6, when the valve body 5 is operated, hydraulic oil flows into the valve body 5 through a pipeline, the main valve element 1 in the valve body 5 is jacked open by the hydraulic oil, a gap through which the hydraulic oil can pass is generated between the main valve element 1 and the valve body 5, meanwhile, the secondary valve element 2 is jacked open by the hydraulic oil, the liquid inlet hole 8 is communicated with the liquid outlet hole 7, the flow area is increased, and when the top end of the secondary valve element 2 is 5.5 mm away from the top end of the accommodating groove 6, the working effect is better; when the valve is not in working state, the main valve core 1 and the secondary valve core 2 are respectively contacted with the hole of the valve body 5 and the hole of the main valve core 1 under the action of the spring, so that reverse stop is realized. Under the function of guaranteeing the original reverse stop, the flow area is increased, and the pressure loss of the traditional check valve is reduced by a double-core structure when the traditional check valve is under the pressure of hydraulic oil, so that the working efficiency is improved.
The utility model is further optimized in that the number of the liquid outlet holes 7 is 4, the liquid outlet holes 7 are uniformly distributed around the main valve core 1, the 4 liquid outlet holes 7 are distributed in central symmetry, and the radial unbalance force borne by the valve core can be reduced by the liquid outlet holes 7.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered by the protection scope of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
Claims (5)
1. The utility model provides a two core check valves of control fluid direction in hydraulic system, includes valve body (5), its characterized in that, valve body (5) inside is provided with main valve element (1), main valve element (1) inside be provided with holding tank (6), be provided with secondary valve element (2) in holding tank (6), be provided with main spring (3) between main valve element (1) and valve body (5), be provided with secondary spring (4) between secondary valve element (2) and valve body (5), secondary spring (4) be located inside main spring (3), main valve element (1) holding tank (6) side be provided with out liquid hole (7), holding tank (6) top be provided with feed liquor hole (8), feed liquor hole (8) and holding tank (6) intercommunication.
2. Double-spool non-return valve for controlling the direction of flow in a hydraulic system according to claim 1, characterised in that the number of outlet openings (7) is 4 and that the outlet openings (7) are evenly distributed around the main spool (1).
3. The check valve of claim 1, wherein the main spool (1) is provided with a first notch, one end of the main spring (3) is located in the first notch, the secondary spool (2) is provided with a second notch, and one end of the secondary spring (4) is located in the second notch.
4. The dual spool check valve for controlling the direction of fluid in a hydraulic system of claim 1 wherein the main spool (1) is in clearance fit with the valve body (5) and the secondary spool (2) is in clearance fit with the main spool (1).
5. The dual spool check valve for controlling the direction of fluid in a hydraulic system of claim 1 wherein the top of the primary spool (1) and the secondary spool (2) are both tapered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122557156.8U CN216519796U (en) | 2021-10-25 | 2021-10-25 | Double-core one-way valve for controlling fluid direction in hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122557156.8U CN216519796U (en) | 2021-10-25 | 2021-10-25 | Double-core one-way valve for controlling fluid direction in hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216519796U true CN216519796U (en) | 2022-05-13 |
Family
ID=81525029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122557156.8U Expired - Fee Related CN216519796U (en) | 2021-10-25 | 2021-10-25 | Double-core one-way valve for controlling fluid direction in hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216519796U (en) |
-
2021
- 2021-10-25 CN CN202122557156.8U patent/CN216519796U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220513 |