CN109027332B - Check valve with adjustable stop direction - Google Patents
Check valve with adjustable stop direction Download PDFInfo
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- CN109027332B CN109027332B CN201811064926.1A CN201811064926A CN109027332B CN 109027332 B CN109027332 B CN 109027332B CN 201811064926 A CN201811064926 A CN 201811064926A CN 109027332 B CN109027332 B CN 109027332B
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- hole
- check valve
- shell
- connecting hole
- valve core
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
- F16K15/066—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring with a plurality of valve members
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a check valve with adjustable cut-off direction, which comprises a first shell and a second shell which are connected with each other, wherein the first shell is provided with a first through hole, the second shell is provided with a fourth connecting hole communicated with the first through hole, the check valve also comprises a first valve core matched and connected with the first through hole in a sliding way and a first spring for extruding the first valve core, and the fourth connecting hole can be sealed by the first valve core, and the check valve is characterized in that: the second shell is provided with a second through hole, the first shell is provided with a second connecting hole communicated with the second through hole, and the second connecting hole is communicated with the fourth connecting hole; the check valve further includes: the second valve core is matched and connected with the first through hole in a sliding mode, and the first spring extrudes the first valve core; the first pull rod is connected with the first valve core, and can be pulled out outwards and fixed; and the second pull rod is connected with the second valve core, and can be pulled out outwards and fixed. The check valve can conveniently control the direction of preventing the oil from reversely flowing.
Description
Technical Field
The invention relates to a one-way valve, in particular to a one-way valve with an adjustable stop direction.
Background
The check valve is commonly called as a check valve, fluid can only flow along the water inlet, and the medium at the water outlet cannot flow back. Check valves are also known as check valves or check valves. For preventing reverse flow of oil in hydraulic systems or for preventing reverse flow of compressed air in pneumatic systems. The one-way valve has a straight-through type and a right-angle type.
Current check valve can only allow fluid to flow to a direction, realizes keeping opening when fluid flows at fixed direction, and fluid keeps ending when reverse flow, but under some circumstances, needs fluid to carry out the unidirectional flow in reverse, and fluid is by former delivery port to former water inlet unidirectional flow promptly, then at this moment, then needs reverse installation with the check valve, or uses two check valves, and the dismouting is wasted time and energy, and fluid flows out easily moreover, the polluted environment.
Disclosure of Invention
The present invention is directed to overcoming the above-mentioned drawbacks of the prior art, and providing a check valve with adjustable blocking direction, which can conveniently control the direction of preventing the oil from flowing backwards.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides an adjustable check valve that ends direction, its includes first casing and the second casing of interconnect, first through-hole has been seted up to first casing, the second casing seted up with the fourth connecting hole of first through-hole intercommunication, the check valve still include with first through-hole slip connect with first case and the first spring of extrusion first case, first case can seal the fourth connecting hole, its characterized in that: the second shell is provided with a second through hole, the first shell is provided with a second connecting hole communicated with the second through hole, and the second connecting hole is communicated with the fourth connecting hole;
the check valve further includes:
the second valve core is matched and connected with the first through hole in a sliding mode, and the first spring presses the first valve core;
the first pull rod is connected with the first valve core, and can be pulled out outwards and fixed;
and the second pull rod is connected with the second valve core, and can be pulled out outwards and fixed.
In addition, the invention also provides the following auxiliary technical scheme:
the first shell is provided with a first protruding block, and the first pull rod is provided with a first baffle which can abut against the first protruding block.
The second shell is provided with a second protruding block, and the second pull rod is provided with a second baffle which can be abutted against the second protruding block.
The first shell is provided with a first flow through hole communicated with the first through hole and the second connecting hole.
The second shell is provided with a second flow through hole communicated with the second through hole and the fourth connecting hole, and the second flow through hole is matched with the first flow through hole.
The first shell is further provided with a first anti-backing sleeve, and the first spring is abutted between the first anti-backing sleeve and the first valve core.
The second shell is further provided with a second anti-return sleeve, and the second spring is abutted between the second anti-return sleeve and the second valve core.
The first valve core is provided with a first blind hole, and the first spring is arranged in the first blind hole.
The second valve core is provided with a second blind hole, and the second spring is arranged in the second blind hole.
The first housing and the second housing are flanged.
Compared with the prior art, the invention has the advantages that: the one-way valve with the adjustable stop direction can conveniently control the direction of preventing the oil from reversely flowing by changing the states of the first valve core and the second valve core, can achieve the states of complete conduction and stop, has more diversified functions, and is simple and convenient to operate and high in reliability.
Drawings
Fig. 1 is a schematic view of the structure of the check valve of the present invention.
Fig. 2 is a right side view of the check valve of fig. 1.
Fig. 3 is a left side view of the check valve of fig. 1.
Fig. 4 is a schematic structural view of the check valve of the present invention after the flow restriction direction is changed.
Fig. 5 is a right side view of the check valve of fig. 4.
Fig. 6 is a left side view of the check valve of fig. 4.
Detailed Description
The present invention will be described in further non-limiting detail with reference to the following preferred embodiments and accompanying drawings.
As shown in fig. 1, the check valve with adjustable blocking direction according to a preferred embodiment of the present invention includes a first housing 10 and a second housing 50 connected to each other, and the first housing 10 and the second housing 50 are connected by a flange. The first housing 10 and the second housing 50 are respectively provided with a first flange 11 and a second flange 51 which are matched with each other, and the first housing 10 and the second housing 50 are fastened together by bolts and nuts.
A first through hole 12 is formed in the end face of one end of the first shell 10, a first connecting hole 13 and a second connecting hole 14 are formed in the end face of the other end of the first shell 10, a first through hole 15 for communicating the first connecting hole 13 with the first through hole 12 is further formed in the first shell 10, and preferably, the first connecting hole 13 and the first through hole 15 are coaxially arranged; the second connection bore 14 communicates with the first through-flow bore 12 and is used for connecting an external oil line.
The second housing 50 has a structure similar to that of the first housing 10, wherein a second through hole 52 matching with the first through hole 12 is formed in an end face of one end of the second housing, a third connecting hole 53 and a fourth connecting hole 54 are formed in an end face of the other end of the second housing, a second through hole 55 communicating the third connecting hole 53 with the fourth connecting hole 54 is further formed in the second housing 50, and preferably, the third connecting hole 53 and the second through hole 55 are coaxially arranged; the fourth connection hole 54 communicates with the second through-hole 52, and is used for connecting an external oil line.
Preferably, after the first housing 10 and the second housing 50 are connected, the second connection hole 14 is coaxial with the second through hole 55; the fourth connection hole 54 is coaxial with the first through hole 15.
The check valve of the present invention further includes a first spool 16, a first anti-backup sleeve 17, a first pull rod 18, and a first spring 19.
Wherein the first valve core 16 is slidably fitted in the first through hole 15, and in one embodiment, the fitting relationship with the first through hole 15 can refer to the fitting relationship of the piston and the cylinder body of the oil cylinder in the prior art. One end of the first valve core 16 is provided with a first conical surface 71 capable of sealing the fourth connecting hole 54, the other end is provided with a first blind hole 70, and a first bottom surface 72 of the first blind hole 70 is further provided with a first screw hole 73 in threaded connection with the first pull rod 18. The first valve body 16 is further provided with a first through hole 75 that is in fluid communication with the first and second through holes 12, 52 in the radial direction.
The first tie bar 18 has one end screwed in the first screw hole 73 and the other end extending out of the first connection hole 13, a first baffle 20 is disposed at the end extending out of the first connection hole 13, a first protrusion 21 is disposed on the first casing 10, and the first baffle 20 and the first protrusion 21 are disposed to be adjustable to a contact or non-contact state as required, as shown in fig. 3 and 6, the first baffle 20 has a dimension in the width direction different from a dimension in the length direction, and when the first baffle 20 is transversely disposed, it is not in contact with the first protrusion 21, and when it is longitudinally disposed, it is supported by the first protrusion 21.
The surface of the first connecting hole 13 is provided with threads, the first anti-backing sleeve 17 is in threaded connection with the first connecting hole 13, the first pull rod 18 is arranged in the first anti-backing sleeve 17 in a penetrating mode, and the first anti-backing sleeve 17 is provided with a first supporting surface 74.
The first spring 19 is disposed in the first blind hole 70, and is sleeved on the first pull rod 18, and two ends of the first spring respectively abut against the first supporting surface 74 and the first bottom surface 72. The first spring 19 applies a force to the first spool 16 in the direction of the fourth connection hole 54; when the first baffle 20 is not supported by the first bump 21, the first valve core 16 abuts against and seals the fourth connecting hole 54; and when the first shutter 20 is supported by the first protrusion 21, the first spool 16 is out of contact with the fourth connecting hole 54.
The check valve of the present invention further includes a second spool 56, a second anti-backup sleeve 57, a second pull rod 58, and a second spring 59.
Wherein the second valve core 56 is slidably engaged in the second through hole 55, and in one embodiment, the engagement relationship with the second through hole 55 is as the engagement relationship between the piston and the cylinder body of the oil cylinder in the prior art. One end of the second valve core 56 is provided with a second taper surface 81 capable of sealing the second connecting hole 14, the other end is provided with a second blind hole 80, and a second bottom surface 82 of the second blind hole 80 is further provided with a second screw hole 83 in threaded connection with the second pull rod 58. The second spool 56 is also provided with a second through-hole 85 in radial direction, which is in fluid communication with the first and second through-holes 12, 52.
One end of the second pull rod 58 is screwed in the second screw hole 83, the other end extends out of the third connecting hole 53, a second baffle 60 is arranged at the end extending out of the third connecting hole 53, a second bump 61 is arranged on the second shell 50, the second baffle 60 and the second bump 61 are arranged to be capable of being adjusted to be in a contact or non-contact state as required, as shown in fig. 2 and 4, the dimension of the second baffle 60 in the width direction is different from the dimension of the second baffle 60 in the length direction, when the second baffle 60 is transversely placed, the second baffle is not in contact with the second bump 61, and when the second baffle 60 is longitudinally placed, the second baffle is supported by the second bump 61.
The surface of the third connecting hole 53 is provided with threads, the second anti-back sleeve 57 is connected in the third connecting hole 53 in a threaded manner, the second pull rod 58 penetrates through the second anti-back sleeve 57, and the second anti-back sleeve 57 is provided with a second supporting surface 84.
The second spring 59 is disposed in the second blind hole 80, and the second spring is sleeved on the second pull rod 58, and two ends of the second spring respectively abut against the second supporting surface 84 and the second bottom surface 82. The second spring 59 applies a force to the second spool 56 in the direction toward the second through hole 55; when the second baffle 60 is not supported by the second projection 61, the second valve core 56 resists and seals the second connecting hole 14; and when the second shutter 60 is supported by the second protrusion 61, the second spool 56 is out of contact with the second coupling hole 14.
When the first pull rod 18 needs to be supported by the first bump 21, the first pull rod 18 is pulled outwards and rotated by a certain angle, so that the first bump 21 supports the first baffle 20, and then the first pull rod 18 is released; when the first pull rod 18 and the first bump 21 are separated from the support, the first pull rod 18 is pulled outwards and rotated for a certain angle, so that the first bump 21 is separated from the first baffle 20, and then the first pull rod 18 is released. The operation of the second pull rod 58 is similar to the first pull rod 18 and will not be described in detail herein.
As shown in fig. 1, when the first baffle 20 is not supported by the first protrusion 21 and the second baffle 60 is supported by the second protrusion 61, the first valve core 16 abuts against the fourth connecting hole 54, and the second valve core 56 is separated from the second connecting hole 14, at this time, after the oil enters from the fourth connecting hole 54, the oil pushes away the first valve core 16 and flows out from the second connecting hole 14 through the first and second through holes 12, 52; if oil flows in from the second connecting hole 14, the pressure of the oil further presses the first valve element 16 against the fourth connecting hole 54 due to the first spring 19 pressing the first valve element 16 against the fourth connecting hole 54, so that the oil cannot flow into the fourth connecting hole 54, i.e., only the oil is allowed to flow in from the second connecting hole 14 and flow out from the fourth connecting hole 54.
Correspondingly, as shown in fig. 4, when the first baffle 20 is supported by the first protrusion 21 and the second baffle 60 is not supported by the second protrusion 61, the first valve core 16 is separated from the fourth connecting hole 54, and the second valve core 56 is abutted against the second connecting hole 14, at this time, after the oil enters from the second connecting hole 14, the oil can push the second valve core 56 open and flow out from the fourth connecting hole 54 through the first and second through-holes 12, 52; if the oil flows in from the fourth connecting hole 54, the pressure of the oil further presses the second spool 56 against the second connecting hole 14 because the second spring 59 presses the second spool 56 against the second connecting hole 14, so that the oil cannot flow into the second connecting hole 14, that is, only the oil is allowed to flow in from the fourth connecting hole 54 and flow out from the second connecting hole 14.
Obviously, when the first baffle 20 and the second baffle 60 are both supported, the first valve spool 10 and the second valve spool 50 are both in an open state, and the whole valve body is in a completely conducted state; when the first baffle 20 and the second baffle 60 are not supported, the first valve element 10 and the second valve element 50 are respectively abutted against the fourth connecting hole 54 and the second connecting hole 14, and at this time, the whole valve body is in a completely closed state, namely, the oil path is cut off.
The one-way valve with the adjustable stop direction can conveniently control the direction of preventing the oil from reversely flowing by changing the states of the first valve core and the second valve core, can achieve the states of complete conduction and stop, has more diversified functions, and is simple and convenient to operate and high in reliability.
It should be noted that the above-mentioned preferred embodiments are merely illustrative of the technical concepts and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. The check valve with the adjustable stop direction comprises a first shell (10) and a second shell (50) which are connected with each other, wherein the first shell (10) is provided with a first through hole (15), the second shell (50) is provided with a fourth connecting hole (54) communicated with the first through hole (15), the check valve further comprises a first valve core (16) matched and connected with the first through hole (15) in a sliding mode and a first spring (19) extruding the first valve core (16), and the first valve core (16) can seal the fourth connecting hole (54), and the check valve is characterized in that: the second shell (50) is provided with a second through hole (55), the first shell (10) is provided with a second connecting hole (14) communicated with the second through hole (55), and the second connecting hole (14) is communicated with the fourth connecting hole (54);
the check valve further includes:
a second valve core (56) matched with the second through hole (55) in a sliding mode and a second spring (59) pressing the second valve core (56), wherein the second valve core (56) can seal the second connecting hole (14);
a first pull rod (18) connected with the first valve core (16), wherein the first pull rod (18) can be pulled outwards and fixed;
and a second pull rod (58) connected with the second valve core (56), wherein the second pull rod (58) can be pulled outwards and fixed.
2. The check valve with adjustable stop direction according to claim 1, wherein: the first shell (10) is provided with a first lug (21), and the first pull rod (18) is provided with a first baffle (20) which can abut against the first lug (21).
3. The check valve with adjustable stop direction according to claim 1, wherein: the second shell (50) is provided with a second lug (51), and the second pull rod (58) is provided with a second baffle (60) which can abut against the second lug (51).
4. The check valve with adjustable stop direction according to claim 1, wherein: the first shell (10) is provided with a first flow through hole (75) communicated with the first through hole (15) and the second connecting hole (14).
5. The check valve with adjustable stop direction according to claim 4, wherein: the second shell (50) is provided with a second flow through hole (85) communicated with the second through hole (55) and the fourth connecting hole (54), and the second flow through hole (85) is matched with the first flow through hole (75).
6. The check valve with adjustable stop direction according to claim 1, wherein: the first shell (10) is further provided with a first anti-back sleeve (17), and the first spring (19) is abutted between the first anti-back sleeve (17) and the first valve core (16).
7. The check valve with adjustable stop direction according to claim 1, wherein: the second shell (50) is further provided with a second anti-back sleeve (57), and the second spring (59) is abutted between the second anti-back sleeve (57) and the second valve core (56).
8. The check valve with adjustable stop direction according to claim 1, wherein: the first valve core (16) is provided with a first blind hole (70), and the first spring (19) is arranged in the first blind hole (70).
9. The check valve with adjustable stop direction according to claim 1, wherein: the second valve core (56) is provided with a second blind hole (80), and the second spring (59) is arranged in the second blind hole (80).
10. The check valve with adjustable stop direction according to claim 1, wherein: the first housing (10) and the second housing (50) are flanged.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811064926.1A CN109027332B (en) | 2018-09-12 | 2018-09-12 | Check valve with adjustable stop direction |
| PCT/CN2018/109866 WO2020051965A1 (en) | 2018-09-12 | 2018-10-11 | Check valve with adjustable cutoff direction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811064926.1A CN109027332B (en) | 2018-09-12 | 2018-09-12 | Check valve with adjustable stop direction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109027332A CN109027332A (en) | 2018-12-18 |
| CN109027332B true CN109027332B (en) | 2020-01-03 |
Family
ID=64621196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811064926.1A Active CN109027332B (en) | 2018-09-12 | 2018-09-12 | Check valve with adjustable stop direction |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109027332B (en) |
| WO (1) | WO2020051965A1 (en) |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191315398A (en) * | 1913-07-03 | 1914-07-02 | Stone J & Co Ltd | Improvements in Valves for Hydraulic Systems especially such Systems as are applicable for Operating Bulkhead Doors and the like. |
| US4458717A (en) * | 1983-03-14 | 1984-07-10 | Aeroquip Corporation | Cylinder cushion seal |
| US4974628A (en) * | 1989-06-08 | 1990-12-04 | Beckman Instruments, Inc. | Check valve cartridges with controlled pressure sealing |
| AT412303B (en) * | 2000-04-18 | 2004-12-27 | Hoerbiger Ventilwerke Gmbh | VALVE |
| CN101430014A (en) * | 2007-11-09 | 2009-05-13 | 上海立新液压有限公司 | Stacked unidirectional throttle valve |
| CN201666393U (en) * | 2009-12-16 | 2010-12-08 | 中国长江航运集团南京金陵船厂 | Double-pole one-way valve device |
| CN102797875A (en) * | 2011-05-23 | 2012-11-28 | 广东美芝制冷设备有限公司 | Bidirectional one-way valve and control method thereof |
| CN202674409U (en) * | 2012-02-24 | 2013-01-16 | 乔丹体育股份有限公司 | Bi-directional free transform one-way valve |
| CN206846000U (en) * | 2017-04-26 | 2018-01-05 | 许一鸣 | Automatic reverse check valve |
| CN207131916U (en) * | 2018-01-29 | 2018-03-23 | 谭振达 | A kind of load-sensitive proportional multi-way valve pilot control stabilizing hydraulic pressure damper |
| CN108980422B (en) * | 2018-09-12 | 2020-03-06 | 苏州丹顿机电有限公司 | Check valve with adjustable stop direction |
| CN109027337B (en) * | 2018-09-12 | 2020-02-14 | 苏州丹顿机电有限公司 | Check valve capable of manually adjusting stop direction |
| CN108869849B (en) * | 2018-09-12 | 2020-05-01 | 苏州丹顿机电有限公司 | Electromagnetic one-way valve with adjustable stop direction |
| CN109027338B (en) * | 2018-09-12 | 2020-03-10 | 苏州丹顿机电有限公司 | Locking loop using electromagnetic one-way valve with adjustable stopping direction |
| CN109083876B (en) * | 2018-09-12 | 2020-05-01 | 苏州丹顿机电有限公司 | Balance loop using electromagnetic one-way valve with adjustable stopping direction |
-
2018
- 2018-09-12 CN CN201811064926.1A patent/CN109027332B/en active Active
- 2018-10-11 WO PCT/CN2018/109866 patent/WO2020051965A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| CN109027332A (en) | 2018-12-18 |
| WO2020051965A1 (en) | 2020-03-19 |
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