CN110594512A - One-way double-sealing hydraulic quick-change connector - Google Patents
One-way double-sealing hydraulic quick-change connector Download PDFInfo
- Publication number
- CN110594512A CN110594512A CN201910963987.XA CN201910963987A CN110594512A CN 110594512 A CN110594512 A CN 110594512A CN 201910963987 A CN201910963987 A CN 201910963987A CN 110594512 A CN110594512 A CN 110594512A
- Authority
- CN
- China
- Prior art keywords
- wall
- valve core
- plug connector
- connector body
- shaped
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 37
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- 238000003825 pressing Methods 0.000 claims abstract description 14
- 230000006835 compression Effects 0.000 claims abstract description 12
- 238000007906 compression Methods 0.000 claims abstract description 12
- 239000003921 oil Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
Classifications
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/28—Couplings of the quick-acting type with fluid cut-off means
- F16L37/30—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings
- F16L37/32—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings at least one of two lift valves being opened automatically when the coupling is applied
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention discloses a one-way double-sealing hydraulic quick-change connector which comprises an outer sleeve connector body, an inner plug connector body and a knurled sleeve, wherein an L-shaped through groove is formed in the inner side of the knurled sleeve, a compression spring is arranged in the L-shaped through groove, and the bottom end of the compression spring is fixed to the inner side of a protrusion on the outer wall of the outer sleeve connector body; a first valve core is arranged in the outer sleeve joint body, and a first snap spring, a first pressing plate, a first spring, a first hydraulic oil seal and a first O-shaped sealing flat gasket are sequentially sleeved on the outer wall of the first valve core from outside to inside; a second valve core is arranged in the inner plug connector body, and a second snap spring, a second pressing plate, a second spring, a second hydraulic oil seal and a second O-shaped sealing flat gasket are sequentially sleeved on the outer wall of the second valve core from outside to inside; and a positioning pin and a steel ball are arranged between the outer wall of the end part of the outer sleeve joint body and the knurled sleeve. The double-sealing device performs double sealing through the flat gasket and the oil seal, can prevent the leakage and seepage of working media in the working process, and improves the use safety.
Description
Technical Field
The invention relates to the technical field of hydraulic equipment, in particular to a one-way double-sealing hydraulic quick-change connector.
Background
The quick joint comprises a hydraulic quick joint and various fluid quick joints, and is a special device for quickly connecting or disconnecting pipelines to realize quick assembly and disassembly. Because it can be quickly inserted and pulled out, it can be used in the fields of building, railway, industrial and mining hydraulic machines and tools, petroleum, metallurgy, hydroelectric power, ship and electromechanical equipment, etc. The quick joint connecting structure is the most important part of the quick joint, and the connecting mode and the structure of the quick joint directly determine the use convenience, the reliability and the product quality of the quick joint. The hydraulic quick connector is used on a hydraulic pipeline which is frequently disassembled and assembled, and can be disassembled and assembled without tools. The existing hydraulic quick connector is complex in structure and high in manufacturing cost, and is likely to cause misoperation of an outer sleeve lock to disconnect the connector when a pipeline is dragged or under the condition of impact vibration, so that the using effect and the use safety of the quick connector are affected, and in addition, the existing hydraulic quick connector is sealed through an O-shaped ring, so that the working medium is easily leaked outside, and the safety is not high. In view of the above, it is necessary to design a one-way double-sealing hydraulic quick-change connector.
Disclosure of Invention
The invention aims to provide a one-way double-seal hydraulic quick-change connector which is simple in structure, double-seal is carried out through a flat gasket and an oil seal, the problems of leakage and seepage of working media in the working process can be solved, and the use safety is improved.
In order to achieve the purpose, the invention provides a one-way double-sealing hydraulic quick-change connector which comprises an outer sleeve connector body, an inner plug connector body connected with the outer sleeve connector body and a knurled sleeve clamped outside the outer sleeve connector body, wherein an L-shaped through groove is formed in the inner side of the knurled sleeve, a compression spring is arranged in the L-shaped through groove, and the bottom end of the compression spring is fixed to the inner side of a protrusion on the outer wall of the outer sleeve connector body;
a first valve core is arranged in the outer casing joint body, a first snap spring, a first pressing plate, a first spring, a first hydraulic oil seal and a first O-shaped sealing flat gasket are sequentially sleeved on the outer wall of the first valve core from outside to inside, and the outer walls of the first O-shaped sealing flat gasket, the first hydraulic oil seal, the first pressing plate and the first snap spring are all attached to the inner wall of the outer casing joint body;
a second valve core which is contacted with the mandril at the end part of the first valve core is arranged in the inner plug connector body, a second snap spring, a second pressing plate, a second spring, a second hydraulic oil seal and a second O-shaped sealing flat gasket are sequentially sleeved on the outer wall of the second valve core from outside to inside, and the outer walls of the second O-shaped sealing flat gasket, the second hydraulic oil seal, the second pressing plate and the second snap spring are all attached to the inner wall of the inner plug connector body;
and a positioning pin and a steel ball are arranged between the outer wall of the end part of the outer sleeve joint body and the knurled sleeve.
Preferably, the outer wall end of the outer sleeve joint body is provided with a groove clamped with the positioning pin, and the depth of the groove is smaller than the diameter of the positioning pin.
Preferably, the end of the knurled sleeve is provided with a slope, the slope is in contact with the positioning pin, and the angle range of the slope is 120-160 degrees.
Preferably, the diameter of the first hydraulic oil seal is larger than that of the first O-shaped sealing flat gasket, and the diameter of the second hydraulic oil seal is larger than that of the second O-shaped sealing flat gasket.
Preferably, the steel ball is fixed in an outer wall groove of the outer sleeve joint body, the depth of the outer wall groove is smaller than the diameter of the steel ball, and the steel ball is in contact with the inner wall of the knurled sleeve.
Preferably, a C-shaped steel wire retainer ring is arranged between the compression spring and the inner plug connector body.
Preferably, an O-shaped sealing ring and an O-shaped wear-resistant gasket are arranged at the joint of the ejector rod of the first valve core and the ejector rod of the second valve core.
Therefore, the one-way double-seal hydraulic quick-change connector adopting the structure is simple in structure, double sealing is performed through the flat gasket and the oil seal, the problems of leakage and seepage of working media in the working process can be prevented, and the use safety is improved.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
Fig. 1 is an exploded view of a structure of an embodiment of a one-way double-sealing hydraulic quick-change connector according to the invention;
fig. 2 is a schematic structural diagram of an embodiment of a one-way double-sealing hydraulic quick-change connector according to the present invention.
Detailed Description
Examples
Fig. 1 is an exploded view of an embodiment of a one-way double-seal hydraulic quick-change connector of the invention, and fig. 2 is a schematic structural view of an embodiment of a one-way double-seal hydraulic quick-change connector of the invention, as shown in the figure, the invention provides a one-way double-seal hydraulic quick-change connector, which comprises an outer joint body 1, an inner plug joint body 2 connected with the outer joint body 1, and a knurled sleeve 3 clamped outside the outer joint body 1, wherein an L-shaped through groove 4 is arranged on the inner side of the knurled sleeve 3, a compression spring 5 is arranged in the L-shaped through groove 4, and the bottom end of the compression spring 5 is fixed on the inner side of a protrusion 6 on the outer wall of; a first valve core 7 is arranged in the outer casing joint body 1, a first snap spring 8, a first pressing plate 9, a first spring 10, a first hydraulic oil seal 11 and a first O-shaped sealing flat gasket 12 are sequentially sleeved on the outer wall of the first valve core 7 from outside to inside, and the outer walls of the first O-shaped sealing flat gasket 12, the first hydraulic oil seal 11, the first pressing plate 8 and the first snap spring 8 are all attached to the inner wall of the outer casing joint body 1; a second valve core 13 which is contacted with an ejector rod at the end part of the first valve core 7 is arranged in the inner plug connector body 2, a second snap spring 14, a second pressing plate 15, a second spring 16, a second hydraulic oil seal 17 and a second O-shaped sealing flat gasket 18 are sequentially sleeved on the outer wall of the second valve core 13 from outside to inside, and the outer walls of the second O-shaped sealing flat gasket 18, the second hydraulic oil seal 17, the second pressing plate 15 and the second snap spring 14 are all attached to the inner wall of the inner plug connector body 2; a positioning pin 19 and a steel ball 20 are arranged between the outer wall of the end part of the outer sleeve joint body 1 and the knurled sleeve 3. When the two joint bodies are separated in use, the two valve cores extend outwards under the action of respective springs and are pressed on tapered holes of the joint bodies, so that a passage is closed, and oil in pipes on two sides is sealed in the pipes and cannot flow out; when the two joint bodies are connected, the two ejector rods at the front end of the valve core collide with each other to force the valve core to leave the tapered holes of the joint bodies, so that oil in the pipes on two sides is communicated, the two joint bodies are locked by the steel ball, and when the two joint bodies work, the knurled sleeve presses the steel ball in the groove of the outer joint body under the action of the compression spring to connect the two joint bodies.
The outer wall end of the outer casing joint body 1 is provided with a groove 21 for clamping the positioning pin 19, and the depth of the groove 21 is smaller than the diameter of the positioning pin 19.
The end of the knurled sleeve 3 is provided with a slope 22, the slope 22 is in contact with the positioning pin 19, and the angle range of the slope 22 is 120-160 degrees, so that the knurled sleeve can be conveniently rotated downwards to loosen the positioning pin.
The diameter of the first hydraulic oil seal 11 is larger than that of the first O-shaped sealing flat gasket 12, and the diameter of the second hydraulic oil seal 17 is larger than that of the second O-shaped sealing flat gasket 18, so that the sealing performance is improved.
The steel ball 20 is fixed in the outer wall recess 23 of the outer sleeve joint body 1, the depth of the outer wall recess 23 is smaller than the diameter of the steel ball 20, the steel ball 20 contacts with the inner wall of the knurled sleeve 3, the steel ball is driven to rotate when the knurled sleeve is rotated, and the knurled sleeve slides downwards.
A C-shaped steel wire retainer ring 24 is arranged between the compression spring 5 and the inner plug head body 2.
And an O-shaped sealing ring and an O-shaped wear-resistant gasket are arranged at the joint of the mandril of the first valve core 7 and the mandril of the second valve core 13, so that the sealing property is improved.
Therefore, the one-way double-seal hydraulic quick-change connector adopting the structure is simple in structure, double sealing is performed through the flat gasket and the oil seal, the problems of leakage and seepage of working media in the working process can be prevented, and the use safety is improved.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the invention without departing from the spirit and scope of the invention.
Claims (7)
1. The one-way double-seal hydraulic quick-change connector is characterized in that:
the outer plug connector comprises an outer plug connector body, an inner plug connector body connected with the outer plug connector body and a knurled sleeve clamped outside the outer plug connector body, wherein an L-shaped through groove is formed in the inner side of the knurled sleeve, a compression spring is arranged in the L-shaped through groove, and the bottom end of the compression spring is fixed to the inner side of a protrusion on the outer wall of the outer plug connector body;
a first valve core is arranged in the outer casing joint body, a first snap spring, a first pressing plate, a first spring, a first hydraulic oil seal and a first O-shaped sealing flat gasket are sequentially sleeved on the outer wall of the first valve core from outside to inside, and the outer walls of the first O-shaped sealing flat gasket, the first hydraulic oil seal, the first pressing plate and the first snap spring are all attached to the inner wall of the outer casing joint body;
a second valve core which is contacted with the mandril at the end part of the first valve core is arranged in the inner plug connector body, a second snap spring, a second pressing plate, a second spring, a second hydraulic oil seal and a second O-shaped sealing flat gasket are sequentially sleeved on the outer wall of the second valve core from outside to inside, and the outer walls of the second O-shaped sealing flat gasket, the second hydraulic oil seal, the second pressing plate and the second snap spring are all attached to the inner wall of the inner plug connector body; and a positioning pin and a steel ball are arranged between the outer wall of the end part of the outer sleeve joint body and the knurled sleeve.
2. The one-way dual-seal hydraulic quick-change coupler according to claim 1, wherein: the outer wall end of the outer sleeve joint body is provided with a groove clamped with the positioning pin, and the depth of the groove is smaller than the diameter of the positioning pin.
3. The one-way dual-seal hydraulic quick-change coupler according to claim 2, wherein: the tip of annular knurl sleeve is provided with the slope, the slope with the locating pin contacts, just the angular scope of slope is 120 degrees-160 degrees.
4. The one-way dual-seal hydraulic quick-change coupler according to claim 3, wherein: the diameter of the first hydraulic oil seal is larger than that of the first O-shaped sealing flat gasket, and the diameter of the second hydraulic oil seal is larger than that of the second O-shaped sealing flat gasket.
5. The one-way dual-seal hydraulic quick-change coupler according to claim 4, wherein: the steel ball is fixed in the outer wall groove of the outer sleeve joint body, the depth of the outer wall groove is smaller than the diameter of the steel ball, and the steel ball is in contact with the inner wall of the knurled sleeve.
6. The one-way dual-seal hydraulic quick-change coupler according to claim 5, wherein: and a C-shaped steel wire check ring is arranged between the compression spring and the inner plug connector body.
7. The one-way dual-seal hydraulic quick-change coupler according to claim 6, wherein: and an O-shaped sealing ring and an O-shaped wear-resistant gasket are arranged at the joint of the ejector rod of the first valve core and the ejector rod of the second valve core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910963987.XA CN110594512A (en) | 2019-10-11 | 2019-10-11 | One-way double-sealing hydraulic quick-change connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910963987.XA CN110594512A (en) | 2019-10-11 | 2019-10-11 | One-way double-sealing hydraulic quick-change connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110594512A true CN110594512A (en) | 2019-12-20 |
Family
ID=68866514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910963987.XA Pending CN110594512A (en) | 2019-10-11 | 2019-10-11 | One-way double-sealing hydraulic quick-change connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110594512A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591296A (en) * | 2013-11-26 | 2014-02-19 | 无锡格莱德科技有限公司 | Nanometer hydraulic oil seal |
| CN204328301U (en) * | 2014-12-19 | 2015-05-13 | 浙江松乔气动液压有限公司 | A kind of rapid pipe joint |
| CN206377384U (en) * | 2016-12-23 | 2017-08-04 | 浙江松乔气动液压有限公司 | A kind of snap joint mother socket |
| CN206377383U (en) * | 2016-12-23 | 2017-08-04 | 浙江松乔气动液压有限公司 | Snap joint |
| CN206377386U (en) * | 2016-12-23 | 2017-08-04 | 浙江松乔气动液压有限公司 | Snap joint public plug |
| CN108317324A (en) * | 2018-04-28 | 2018-07-24 | 浙江松乔气动液压有限公司 | Quick coupling |
| CN208651914U (en) * | 2018-04-28 | 2019-03-26 | 浙江松乔气动液压有限公司 | Novel hydraulic quick connector |
| CN210600598U (en) * | 2019-10-11 | 2020-05-22 | 安徽科德森机械有限公司 | One-way double-sealing hydraulic quick-change connector |
| CN112696545A (en) * | 2020-10-23 | 2021-04-23 | 浙江松乔气动液压有限公司 | Novel quick connector |
-
2019
- 2019-10-11 CN CN201910963987.XA patent/CN110594512A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591296A (en) * | 2013-11-26 | 2014-02-19 | 无锡格莱德科技有限公司 | Nanometer hydraulic oil seal |
| CN204328301U (en) * | 2014-12-19 | 2015-05-13 | 浙江松乔气动液压有限公司 | A kind of rapid pipe joint |
| CN206377384U (en) * | 2016-12-23 | 2017-08-04 | 浙江松乔气动液压有限公司 | A kind of snap joint mother socket |
| CN206377383U (en) * | 2016-12-23 | 2017-08-04 | 浙江松乔气动液压有限公司 | Snap joint |
| CN206377386U (en) * | 2016-12-23 | 2017-08-04 | 浙江松乔气动液压有限公司 | Snap joint public plug |
| CN108317324A (en) * | 2018-04-28 | 2018-07-24 | 浙江松乔气动液压有限公司 | Quick coupling |
| CN208651914U (en) * | 2018-04-28 | 2019-03-26 | 浙江松乔气动液压有限公司 | Novel hydraulic quick connector |
| CN210600598U (en) * | 2019-10-11 | 2020-05-22 | 安徽科德森机械有限公司 | One-way double-sealing hydraulic quick-change connector |
| CN112696545A (en) * | 2020-10-23 | 2021-04-23 | 浙江松乔气动液压有限公司 | Novel quick connector |
Non-Patent Citations (1)
| Title |
|---|
| 郑耀鹏: "《燃气汽车》", 31 July 2002, 新疆科技卫生出版社, pages: 61 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204829061U (en) | High -speed joint connects | |
| CN107152575B (en) | Coaxial self-sealing joint | |
| CN109296861B (en) | Blind-mating floating fluid connector | |
| CN104295839A (en) | Anti-pollution underwater one-way hydraulic rapid connector and application method of anti-pollution underwater one-way hydraulic rapid connector | |
| CA3061531C (en) | Quick-insertion coupling joint | |
| CN210600598U (en) | One-way double-sealing hydraulic quick-change connector | |
| CN204176213U (en) | A kind of antipollution hydraulic quick coupling of single channel under water | |
| CN201434173Y (en) | Super-high pressure quick connector | |
| CN110594512A (en) | One-way double-sealing hydraulic quick-change connector | |
| CN204226915U (en) | A kind of rapid pipe joint | |
| CN107917297B (en) | Low-leakage-rate and long-service-life bidirectional under-pressure plug quick disconnect device | |
| CN102705618B (en) | Quick connector operated by utilizing pressure difference between connectors under high-pressure state | |
| CN210830942U (en) | Novel quick connector | |
| CN217502987U (en) | Large-flow quick connector | |
| CN218761436U (en) | Filling valve capable of being actively controlled | |
| CN107091388B (en) | Novel male plug for quick connector | |
| CN216408008U (en) | Metal pipe connecting equipment with good sealing effect | |
| CN111828759B (en) | Quick connector | |
| CN110701406A (en) | Novel quick connector | |
| CN103162042A (en) | Male connector | |
| CN107387916B (en) | Pollution-free underwater single-way hydraulic joint | |
| CN111853403A (en) | Novel quick connector | |
| CN202091690U (en) | Quick transfer connector mechanism for fluid media | |
| CN107143716B (en) | Novel quick connector | |
| CN221278792U (en) | Novel hydraulic quick connector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |