CN104141647A - Cartridge one-way valve - Google Patents
Cartridge one-way valve Download PDFInfo
- Publication number
- CN104141647A CN104141647A CN201310162327.4A CN201310162327A CN104141647A CN 104141647 A CN104141647 A CN 104141647A CN 201310162327 A CN201310162327 A CN 201310162327A CN 104141647 A CN104141647 A CN 104141647A
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- Prior art keywords
- valve
- hole
- inner hole
- oil
- valve seat
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 30
- 239000010959 steel Substances 0.000 claims abstract description 30
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Taps Or Cocks (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a cartridge one-way valve. An overall cartridge structure serving as an independent function unit is applied to a multi-way valve; the cartridge one-way valve comprises a valve sleeve, a valve base, steel balls and a sealing piece, wherein an outer thread is arranged on the outer surface of the valve sleeve in the axis direction of the valve sleeve; an inner hole is formed in the valve sleeve; an opening of the inner hole is positioned in the end surface of one end of the valve sleeve; an oil outlet is formed in the end surface of the other end of the valve sleeve; oil holes penetrating through the bottom surface and the side surface of the inner hole and communicated with the inner hole and the oil outlet are formed in the periphery of the inner hole; the valve base is arranged in the opening of the inner hole; one end of the valve base is connected with the valve sleeve; an oil inlet is formed in the end surface of the other end of the valve base; a valve base hole communicated with the oil inlet and the inner hole is additionally formed in the valve base; the steel balls are arranged in the inner hole and the valve base hole, and are in fitting sealing with a conical surface on the valve base hole; the distances from the ball centers of the steel balls to the bottom surface of the inner hole are greater than the radiuses of the steel balls; a sealing groove is circularly formed in one end, provided with the oil inlet, of the valve base; and a sealing piece is arranged in the sealing groove.
Description
Technical Field
The invention relates to a one-way valve, in particular to a cartridge type one-way valve which is used for controlling an oil way of a multi-way valve, has reliable performance and compact connection and has a novel structure.
Background
Check valves are elements used to control the unidirectional flow of oil without leaking shut in the reverse direction. For the control oil path of the multi-way valve, not only is the performance of the check valve reliable, but also the structure of the check valve used in the multi-way valve is required to be compact. Most of the existing one-way valves in the market at present are large in overall dimension, are not suitable for being directly used in a multi-way valve, or are formed by assembling parts, cannot form independent functional units, bring great difficulty to batch production of the multi-way valve, and even cause unstable performance of the multi-way valve. Therefore, there is a need to develop a cartridge check valve which has a compact structure and a simple process and is suitable for the one-way flow of oil in a multi-way valve control oil way without leakage and closing in the reverse direction.
In view of this, the designer is based on the practical experience and professional knowledge that are abundant for many years in the design and manufacture of the product, and is matched with the application of the theory to actively carry out research and innovation, so as to create a cartridge type check valve with a novel structure, and the cartridge type check valve is more practical. After continuous research and design and repeated trial production and improvement, the invention with practical value is finally created.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a cartridge type one-way valve with a novel structure, and the technical problem to be solved is that the cartridge type one-way valve is used as an independent functional unit for a multi-way valve in an integral cartridge type structure, has a compact structure and good performance, reduces the processing difficulty, improves the reliability, meets the integral requirement of the multi-way valve, and is very practical.
The purpose of the invention and the technical problem to be solved are realized by adopting the following technical scheme. The invention provides a plug-in one-way valve used for a multi-way valve, which comprises: the valve comprises a valve sleeve, a valve seat, a steel ball and a sealing piece; the outer surface of the valve sleeve is provided with external threads along the axial direction of the valve sleeve, an inner hole is formed in the valve sleeve, an opening of the inner hole is positioned on the end face of one end of the valve sleeve, an oil outlet is formed in the end face of the other end of the valve sleeve, and oil holes which penetrate through the bottom face and the side face of the inner hole and are communicated with the inner hole and the oil outlet are formed in the periphery of the inner hole; the valve seat is arranged at the opening of the inner hole, one end of the valve seat is connected with the valve sleeve, an oil inlet is arranged on the end surface of the other end of the valve seat, and a valve seat hole for communicating the oil inlet with the inner hole is also arranged on the valve seat; the steel ball is arranged in the inner hole and the valve seat hole and is matched and sealed with the conical surface on the valve seat hole, and the distance from the center of the steel ball to the bottom surface of the inner hole is greater than the radius of the steel ball; and a sealing groove is further annularly arranged at one end of the valve seat, which is provided with the oil inlet, and the sealing element is arranged in the sealing groove.
The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.
In the above cartridge check valve, the sealing element is an O-ring.
In the above plug-in type check valve, one end of the valve seat enters the inner hole from the opening of the inner hole and is in interference connection with the inner hole, and the end surface of the end of the valve sleeve where the opening of the inner hole is located is in limit fit with the limit surface on the valve seat.
In the cartridge check valve, the diameter of the inner hole is larger than that of the steel ball, and the distance from the end surface of one end of the valve seat connected with the valve sleeve to the bottom surface of the inner hole is larger than that of the steel ball.
In the above plug-in type check valve, the inner hole extends along the axial direction of the valve sleeve inside the valve sleeve, the oil hole extends along the axial direction of the valve sleeve inside the valve sleeve, an opening at one end of the oil hole is the oil outlet, and the other end of the oil hole extends to the end face of the end, connected with the valve sleeve, of the valve seat inside the valve sleeve.
In an embodiment of the cartridge check valve, the oil holes are multiple, and the multiple oil holes are disposed around the inner hole.
Compared with the prior art, the invention has obvious advantages and beneficial effects. By means of the technical scheme, the plug-in mounting type one-way valve at least has the following advantages and beneficial effects: the cartridge type one-way valve adopts an integral cartridge type structural design and is used as an independent functional unit for a multi-way valve. The multi-way valve has the advantages of being compact in structure and good in performance, being capable of reducing the processing difficulty of the multi-way valve and improving the processing efficiency of the whole multi-way valve, being capable of independently testing the performance of the multi-way valve to guarantee the overall performance of the multi-way valve, avoiding the whole valve fault caused by the fault of the one-way valve in the multi-way valve, reducing fault points, improving the stability and reliability of the whole multi-way valve and meeting the overall requirement of the multi-way valve.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a cross-sectional view of a cartridge check valve in accordance with a preferred embodiment of the present invention.
Fig. 2 is a schematic view of a valve housing of a cartridge type check valve in accordance with a preferred embodiment of the present invention.
FIG. 3 is a schematic view of a valve seat of a cartridge type check valve in accordance with a preferred embodiment of the present invention.
100: valve housing 110: external thread
120: inner bore 121: bottom surface
122: side 130: end face
140: end surface 150: oil hole
200: valve seat 210: valve seat orifice
211: conical surface 220: sealing groove
230: the limiting surface 240: cylindrical surface
250: cylindrical surface 300: steel ball
400: sealing element A: oil inlet
B: oil outlet
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects of the cartridge check valve according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.
The foregoing and other technical and scientific aspects, features and advantages of the present invention will be apparent from the following detailed description of preferred embodiments, which is to be read in connection with the accompanying drawings. While the present invention has been described in connection with the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various modifications, equivalent arrangements, and specific embodiments thereof.
Referring to fig. 1, 2 and 3, fig. 1 is a sectional view of a cartridge type check valve according to a preferred embodiment of the present invention. Fig. 2 is a schematic view of a valve housing of a cartridge type check valve in accordance with a preferred embodiment of the present invention. FIG. 3 is a schematic view of a valve seat of a cartridge type check valve in accordance with a preferred embodiment of the present invention.
The cartridge type check valve of the preferred embodiment of the present invention can be used as an independent functional unit for a multi-way valve, which is mainly composed of a valve housing 100, a valve seat 200, a steel ball 300 and a sealing member 400. Wherein, an external thread 110 is provided on the outer surface of the valve housing 100 in the axial direction of the valve housing 100, and the external thread 110 can be used for the connection of the entire valve. An inner hole 120 is formed in the valve housing 100, an opening of the inner hole 120 is located on an end surface 130 of one end of the valve housing 100, an oil outlet B is formed on an end surface 140 of the other end of the valve housing 100, and an oil hole 150 passing through a bottom surface 121 and a side surface 122 of the inner hole 120 and communicating the inner hole 120 with the oil outlet B is formed around the inner hole 120. The valve seat 200 is disposed at an opening of the inner hole 120, one end of the valve seat 200 is connected to the valve housing 100, an oil inlet a is disposed on an end surface of the other end of the valve seat 200, and a valve seat hole 210 for communicating the oil inlet a with the inner hole 120 is further disposed on the valve seat 200. The steel ball 300 is arranged in the inner hole 120 and the valve seat hole 210 and is matched and sealed with the conical surface 211 on the valve seat hole 210, so that the good effects of forward opening and reverse leakage-free closing are achieved. The distance from the center of the steel ball 300 to the bottom surface 121 of the inner hole 120 is larger than the radius of the steel ball 300. A sealing groove 220 is further annularly arranged at one end of the valve seat 200, which is provided with the oil inlet a, and a sealing element 400 is arranged in the sealing groove 220.
The seal 400 of the present invention may be an O-ring seal. One end of the valve seat 200 of the present invention enters the inner bore 120 from the opening of the inner bore 120 and is connected with the inner bore 120 in an interference manner, and the end surface 130 of the end of the valve sleeve 100 where the opening of the inner bore 120 is located is matched with the limiting surface 230 on the valve seat 200 for limiting. As shown in fig. 3, the valve seat 200 is press-fitted into the inner hole 120 with a cylindrical surface 240 formed at one end thereof in an interference fit manner, and an O-ring is provided with a cylindrical surface 250 formed at the other end thereof.
As shown in fig. 1, the diameter of the inner hole 120 of the present invention is larger than that of the steel ball 300, and the distance from the end surface of the end of the valve seat 200 connected to the valve housing 100 to the bottom surface 121 of the inner hole 120 is larger than that of the steel ball 300.
As shown in fig. 2, the inner bore 120 of the present invention may extend in the axial direction of the valve sleeve 100 inside the valve sleeve 100, and the oil hole 150 of the present invention may also extend in the axial direction of the valve sleeve 100 inside the valve sleeve 100, and at this time, an opening at one end of the oil hole 150 is an oil outlet B, and the other end of the oil hole 150 extends to the end surface of the end of the valve seat 200 connected to the valve sleeve 100 inside the valve sleeve 100. Wherein the oil hole 150 of the present invention may be plural, and the plural oil holes 150 are disposed around the inner hole 120.
The steel ball 300 can be a standard steel ball with the diameter of 5mm according with GB/T308-2002 Rolling bearing Steel ball.
When oil enters from the oil inlet A, the inserted one-way valve pushes the steel ball 300 to separate the steel ball 300 from the conical surface 211, so that the oil inlet A and the oil outlet B are communicated through the valve seat hole 210, the inner hole 120 and the oil hole 150, and the oil flows out of the oil outlet B through the one-way valve; when oil enters from the oil outlet B, the steel ball 300 is sealed with the conical surface 211 of the valve seat 200 in a matched manner, the oil inlet A and the oil outlet B are blocked, and the oil cannot flow out from the oil inlet A through the one-way valve, so that the oil can flow in a one-way manner and can be closed in a reverse leakage-free manner.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A cartridge check valve, characterized in that, it is used for multiple unit valve, includes: the valve comprises a valve sleeve, a valve seat, a steel ball and a sealing piece; wherein,
the outer surface of the valve sleeve is provided with external threads along the axial direction of the valve sleeve, an inner hole is formed in the valve sleeve, an opening of the inner hole is positioned on the end face of one end of the valve sleeve, an oil outlet is formed in the end face of the other end of the valve sleeve, and oil holes which penetrate through the bottom surface and the side face of the inner hole and communicate the inner hole and the oil outlet are formed in the periphery of the inner hole;
the valve seat is arranged at the opening of the inner hole, one end of the valve seat is connected with the valve sleeve, an oil inlet is arranged on the end surface of the other end of the valve seat, and a valve seat hole for communicating the oil inlet with the inner hole is also arranged on the valve seat;
the steel ball is arranged in the inner hole and the valve seat hole and is matched and sealed with the conical surface on the valve seat hole, and the distance from the center of the steel ball to the bottom surface of the inner hole is greater than the radius of the steel ball;
and a sealing groove is further annularly arranged at one end of the valve seat, which is provided with the oil inlet, and the sealing element is arranged in the sealing groove.
2. The cartridge check valve of claim 1, wherein the seal is an O-ring seal.
3. The cartridge type check valve as recited in claim 1, wherein an end of the valve seat enters the inner bore from the opening of the inner bore and is in interference fit with the inner bore, and an end surface of the valve sleeve at which the opening of the inner bore is located is in fit position with a position-limiting surface on the valve seat.
4. The cartridge type check valve according to claim 1, wherein the diameter of the inner bore is larger than the diameter of the steel ball, and the distance from the end surface of the end of the valve seat connected with the valve sleeve to the bottom surface of the inner bore is larger than the diameter of the steel ball.
5. The cartridge type check valve according to claim 1, wherein the inner bore extends in the valve housing along an axial direction of the valve housing inside the valve housing, the oil hole extends in the valve housing along the axial direction of the valve housing inside the valve housing, and an opening at one end of the oil hole is the oil outlet, and the other end of the oil hole extends in the valve housing to an end surface of one end of the valve seat connected to the valve housing.
6. The cartridge type check valve according to claim 1, wherein the steel ball has a diameter of 5 mm.
7. The cartridge type check valve according to any one of claims 1 to 6, wherein the oil hole is plural, and the plural oil holes are provided around the inner bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310162327.4A CN104141647B (en) | 2013-05-06 | 2013-05-06 | A kind of plug-in one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310162327.4A CN104141647B (en) | 2013-05-06 | 2013-05-06 | A kind of plug-in one-way valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104141647A true CN104141647A (en) | 2014-11-12 |
| CN104141647B CN104141647B (en) | 2017-06-23 |
Family
ID=51850927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310162327.4A Active CN104141647B (en) | 2013-05-06 | 2013-05-06 | A kind of plug-in one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104141647B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112607214A (en) * | 2020-12-23 | 2021-04-06 | 万通(苏州)定量阀系统有限公司 | Dripper structure capable of controlling dripping amount and dripping speed and dripping bottle |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4286622A (en) * | 1980-01-21 | 1981-09-01 | Youichi Ninomiya | Check valve assembly |
| DE3025026A1 (en) * | 1980-07-02 | 1982-01-21 | Robert Bosch Gmbh, 7000 Stuttgart | Non-return valve for electric fuel pumps - forms two=part assembly, sealingly mounted in pump delivery duct, with steel or plastics seat |
| CN2314184Y (en) * | 1997-11-28 | 1999-04-14 | 钟旭东 | One way valve with guiding cylinder and floating ball |
| CN2337372Y (en) * | 1998-06-12 | 1999-09-08 | 胜利石油管理局桩西采油厂 | Ceramic valve ball type single-flow valve |
| CN2339818Y (en) * | 1997-05-30 | 1999-09-22 | 卢京玲 | Automobile oil-tank turn-over stop valve |
| CN2481930Y (en) * | 2001-05-10 | 2002-03-13 | 满德金 | Check valve of electric immersible pump |
| US20060192168A1 (en) * | 2005-02-17 | 2006-08-31 | Thompson Bruce A | Suction actuated gravity deactivated ball valve |
| CN203257777U (en) * | 2013-05-06 | 2013-10-30 | 北京华德液压工业集团有限责任公司 | Plug-in mounting type one-way valve |
-
2013
- 2013-05-06 CN CN201310162327.4A patent/CN104141647B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4286622A (en) * | 1980-01-21 | 1981-09-01 | Youichi Ninomiya | Check valve assembly |
| DE3025026A1 (en) * | 1980-07-02 | 1982-01-21 | Robert Bosch Gmbh, 7000 Stuttgart | Non-return valve for electric fuel pumps - forms two=part assembly, sealingly mounted in pump delivery duct, with steel or plastics seat |
| CN2339818Y (en) * | 1997-05-30 | 1999-09-22 | 卢京玲 | Automobile oil-tank turn-over stop valve |
| CN2314184Y (en) * | 1997-11-28 | 1999-04-14 | 钟旭东 | One way valve with guiding cylinder and floating ball |
| CN2337372Y (en) * | 1998-06-12 | 1999-09-08 | 胜利石油管理局桩西采油厂 | Ceramic valve ball type single-flow valve |
| CN2481930Y (en) * | 2001-05-10 | 2002-03-13 | 满德金 | Check valve of electric immersible pump |
| US20060192168A1 (en) * | 2005-02-17 | 2006-08-31 | Thompson Bruce A | Suction actuated gravity deactivated ball valve |
| CN203257777U (en) * | 2013-05-06 | 2013-10-30 | 北京华德液压工业集团有限责任公司 | Plug-in mounting type one-way valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112607214A (en) * | 2020-12-23 | 2021-04-06 | 万通(苏州)定量阀系统有限公司 | Dripper structure capable of controlling dripping amount and dripping speed and dripping bottle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104141647B (en) | 2017-06-23 |
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