CN115289303A - Hydraulic pipeline quick joint - Google Patents
Hydraulic pipeline quick joint Download PDFInfo
- Publication number
- CN115289303A CN115289303A CN202210987784.6A CN202210987784A CN115289303A CN 115289303 A CN115289303 A CN 115289303A CN 202210987784 A CN202210987784 A CN 202210987784A CN 115289303 A CN115289303 A CN 115289303A
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- Prior art keywords
- connecting pipe
- connector
- wedge
- male connector
- valve core
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- 238000007789 sealing Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 4
- 230000013011 mating Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 210000001503 joint Anatomy 0.000 description 9
- 238000009434 installation Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Classifications
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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
- 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
- F16L37/36—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 with two lift valves being actuated to initiate the flow through the coupling after the two coupling parts are locked against withdrawal
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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
- 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
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
- F16L37/086—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of latching members pushed radially by spring-like elements
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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
- 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
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
- F16L37/1225—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members using a retaining member the extremities of which, e.g. in the form of a U, engage behind a shoulder of both parts
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention provides a hydraulic pipeline quick connector which comprises a male connector and a female connector, wherein one end of the male connector is suitable for being in sealed connection with one end of a pipeline to be connected, and one end of the female connector is suitable for being in sealed connection with the other end of the pipeline to be connected; a first valve port and a first valve core are arranged in the male connector, and the first valve core is axially pushed to the first valve port through a first spring axially arranged in the male connector to close the first valve port; a second valve port and a second valve core are arranged in the female joint, and the second valve core is axially pushed to the second valve port to close the second valve port through a second spring axially arranged in the female joint; the other end of the male connector and the other end of the female connector are suitable for being detachably, rotatably and hermetically connected through a prepositioning structure, and the first wedge block and the second wedge block are overlapped in the radial direction; through the arrangement, the phenomenon that the medium in the pipeline to be connected is sprayed out from the male connector and the female connector is avoided, and the quick connector can be connected normally and quickly under the condition that the pipeline to be connected does not need to be closed.
Description
Technical Field
The invention relates to the technical field of pipeline joints, in particular to a hydraulic pipeline quick joint.
Background
Quick-operation joint is one kind and does not need the instrument just can realize the intercommunication or the joint of disconnection of pipeline fast, the quick installation and the dismantlement of mainly used pipeline, current quick-operation joint includes two joints usually, at first install two joints respectively on two pipelines earlier, then be in the same place two joint butt joints, at the in-process of butt joint, valve on the joint is backed up simultaneously, can cause intraductal medium to splash from the clearance between two joints and leak away, consequently must stop system's work earlier when connecting and make the inside medium pressure release of pipeline, connect again, just so can not cause intraductal medium splash to leak, and this kind of connection method can't realize going on in succession of medium transport work, influence the production progress.
Disclosure of Invention
The technical problem to be solved by the invention is that a medium is easy to leak out from a gap between two connectors when a quick connector in the prior art is in butt joint, the medium conveying is stopped firstly and then the pipeline is connected, and the continuous operation of the medium conveying work cannot be realized.
In order to achieve the purpose, the invention provides a hydraulic pipeline quick connector which comprises a male connector and a female connector, wherein one end of the male connector is suitable for being connected with one end of a pipeline to be connected in a sealing mode, and one end of the female connector is suitable for being connected with the other end of the pipeline to be connected in a sealing mode;
a first valve port and a first valve core are arranged in the male connector, and the first valve core is axially pushed to the first valve port through a first spring axially arranged in the male connector to close the first valve port; a second valve port and a second valve core are arranged in the female joint, and the second valve core is axially pushed to the second valve port to close the second valve port through a second spring axially arranged in the female joint; the other end of the male connector and the other end of the female connector are suitable for being detachably, rotatably and hermetically connected through a prepositioning structure, and a first wedge block at the end part of the first valve core is overlapped with a second wedge block at the end part of the second valve core in the radial direction;
in the process that the male connector is rotated to drive the first valve core to rotate, the first wedge block rotates relative to the second wedge block and is mutually abutted to enable the first wedge block and the second wedge block to move axially, the first valve core is separated from the first valve port, and the second valve core is separated from the second valve port, so that the first valve port and the second valve port are opened to communicate a pipeline to be connected; the female connector is provided with a circumferential locking structure which prevents the male connector from rotating after the pipeline to be connected is communicated.
Optionally, the pre-positioning structure comprises a first connecting pipe and a second connecting pipe, the first connecting pipe is coaxially and fixedly arranged on the male connector or integrally arranged on the male connector, and one end of the second connecting pipe is coaxially and fixedly arranged on the female connector or integrally arranged on the female connector;
the outer side wall of the first connecting pipe is provided with an elastic wedge-shaped positioning pin suitable for radial expansion, an inclined plane is arranged on the elastic wedge-shaped positioning pin relative to one end of the opening of the first connecting pipe, the inner wall of the second connecting pipe is provided with a circumferential sliding chute and an axial sliding chute axially penetrating through the opening of the circumferential sliding chute, and one side of the circumferential sliding chute, which is close to the opening of the second connecting pipe, is communicated with one end of the axial sliding chute, which is far away from the opening of the second connecting pipe; the groove depth of the circumferential sliding groove is greater than that of the axial sliding groove;
in the process of inserting the first connecting pipe into the second connecting pipe, the inclined plane of the elastic wedge-shaped positioning pin is pressed down after being abutted against the opening end of the second connecting pipe, the elastic wedge-shaped positioning pin enters the circumferential sliding groove after passing through the axial sliding groove and is bounced and locked to realize the sealing connection of the first connecting pipe and the second connecting pipe, and in the rotating process of the male connector relative to the female connector, the elastic wedge-shaped positioning pin is suitable for sliding in the circumferential sliding groove.
Optionally, the circumferential locking structure includes a control ring sleeved outside the second connecting pipe, two opposite sides of the control ring are fixedly or integrally provided with an unlocking rod and a locking wedge block, the unlocking rod and the locking wedge block both penetrate through a side wall of the second connecting pipe and are adapted to extend into the circumferential sliding groove, an inner end of the unlocking rod is limited in the second connecting pipe, the unlocking rod is sleeved with a return spring, the return spring drives the inner end of the unlocking rod to align with a bottom wall of the circumferential sliding groove in a natural state, and the locking wedge block extends into the circumferential sliding groove to form a locking space with a terminal side wall of the circumferential sliding groove;
when the elastic wedge-shaped positioning pin slides to the locking wedge block in the circumferential sliding groove, the elastic wedge-shaped positioning pin slides and abuts against the inclined surface of the locking wedge block to press the locking wedge block into the side wall of the second connecting pipe, meanwhile, the return spring is compressed, after the elastic wedge-shaped positioning pin slides to the locking space, the locking wedge block extends into the circumferential sliding groove under the action of the return spring to lock the position of the elastic wedge-shaped positioning pin, and at the moment, the opening of a pipeline to be connected is the largest; when the unlocking is needed, the locking wedge block is driven to enter the side wall of the second connecting pipe from the circumferential sliding groove to unlock the elastic wedge-shaped positioning pin by pressing one side of the unlocking rod on the control ring.
Optionally, when the inner end of the unlocking rod is aligned with the upper end of the elastic wedge-shaped positioning pin, the control ring is pressed downwards to drive the unlocking rod to move radially inwards so as to separate the elastic wedge-shaped positioning pin from the circumferential chute to unlock the male connector and the female connector, and the male connector is pulled outwards to separate and detach the male connector from the female connector.
Optionally, an inner end of the unlocking lever is circumferentially aligned with the axial sliding slot.
Optionally, the end of the first wedge is provided with a first abutting end surface perpendicular to the axis of the first wedge, the end of the second wedge is provided with a second abutting end surface perpendicular to the axis of the second wedge, and when the elastic wedge-shaped positioning pin is located in the locking space, the first abutting section is in fit abutting contact with the second abutting end surface.
Optionally, one end of the male connector is fixedly provided with or integrally provided with a coaxial first connecting sleeve, one end of the female connector is fixedly provided with or integrally provided with a coaxial second connecting sleeve, the first connecting sleeve is suitable for being in sealing connection with one end of the pipeline to be connected, and the second connecting sleeve is suitable for being in sealing connection with the other end of the pipeline to be connected.
Optionally, a first axial sliding channel is formed in one end, away from the first wedge, of the first valve core, a first axial limiting rod which stretches into the first axial sliding channel in a sliding mode is fixedly arranged in the male connector, a first spring is sleeved on the first axial limiting rod, one end of the first spring is abutted to the first valve core, the other end of the first spring is abutted to a radial boss at the outer end of the first axial limiting rod, and the first axial limiting rod and the first valve core are circumferentially positioned in a key connection mode.
Optionally, a second axial sliding channel is formed in one end, far away from the second wedge block, of the second valve core, a second axial limiting rod which stretches into the second axial sliding channel in a sliding mode is fixedly arranged in the female joint, a second spring is sleeved on the second axial limiting rod, one end of the second spring is abutted to the second valve core, the other end of the second spring is abutted to an outer end radial boss of the second axial limiting rod, and the second axial limiting rod and the second valve core are circumferentially fixed in a key connection mode.
Optionally, the first connecting sleeve is fixedly inserted into the male connector, a first supporting disc is arranged in the male connector, a first axial limiting rod is integrally arranged in the center of the first supporting disc, and the first supporting disc is clamped and positioned between the first connecting sleeve and an annular limiting table in the male connector; the second connecting sleeve is fixedly inserted in the female joint, a second supporting disk is arranged in the female joint, a second axial limiting rod is integrally arranged at the center of the second supporting disk, and the second supporting disk is clamped and positioned between the second connecting sleeve and an annular limiting table in the female joint.
The invention has the following technical effects:
1. in the hydraulic pipeline quick connector, after the male connector and the female connector are hermetically connected together through the pre-positioning structure, two ends of a pipeline to be connected are not conducted, so that the phenomenon that a medium in the pipeline to be connected is sprayed out from the male connector and the female connector is avoided, and the quick connector can be normally and quickly connected under the condition that the pipeline to be connected does not need to be closed; after preliminary butt joint, first case and second case have radial overlap section, make first case and second case rotate relatively and contradict each other and make first case keep away from first valve port in order to open first valve port, the second valve port is kept away from to the second valve port in order to open the second valve port through rotatory male joint to make and wait to take over the pipeline and switch on, this kind of mode, form reliable sealed and can not throw off the back at realization pipeline intercommunication at male joint and female joint connection, need not realize the medium pressure release in the pipeline, can realize online connection, disconnection, moreover, the steam generator is simple in structure, and convenient operation. The position of the male connector is locked through the circumferential locking structure, the male connector is prevented from rotating to influence the flow stability in a pipeline to be connected, and the working stability of the quick connector is improved.
2. In the hydraulic pipeline quick connector, the elastic wedge-shaped positioning pin is arranged on the male connector, so that the male connector and the female connector can be butted by matching the elastic wedge-shaped positioning pin with the axial sliding groove and the circumferential sliding groove on the female connector, primary positioning and reliable sealing are realized, and the hydraulic pipeline quick connector is simple, convenient and safe in structure.
3. In the hydraulic pipeline quick connector, the circumferential sliding grooves are formed in the female connector, so that after the male connector and the female connector are initially butted, the male connector and the female connector can rotate relatively, and the positioning pin can be limited from rotating and is prevented from loosening by the locking wedge blocks on the control ring.
Drawings
FIG. 1 is a cross-sectional view of a female connector of the present invention;
FIG. 2 is a cross-sectional view of a male connector of the present invention;
FIG. 3 is a cross-sectional view of the male and female connectors of the present invention during mating;
FIG. 4 isbase:Sub>A sectional view taken along line A-A of FIG. 3 in accordance with the present invention;
FIG. 5 is a cross-sectional view of the male and female connectors of the present invention after mating;
fig. 6 is a sectional view taken along the line B-B in fig. 5 according to the present invention.
Reference numerals are as follows: 1. a male connector; 11. a first valve port; 12. a first valve spool; 121. a first wedge; 122. a first abutting end face; 123. a first axial sliding channel; 13. a first spring; 14. a first connecting sleeve; 15. a first axial stop lever; 16. a first support tray; 2. a female joint; 21. a second valve port; 22. a second valve core; 221. a second wedge; 222. a second abutting end face; 223. a second axial sliding channel; 23. a second spring; 24. a second connecting sleeve; 25. a second axial limiting rod; 26. a second support disc; 3. pre-positioning a structure; 31. a first connecting pipe; 311. an elastic wedge-shaped positioning pin; 32. a second connecting pipe; 321. a circumferential chute; 322. an axial chute; 4. a control loop; 41. an unlocking lever; 42. locking the wedge block; 43. a return spring; 44. a locking space; 5. and (5) sealing rings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings 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 of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
As shown in fig. 1-6, a hydraulic line quick connector comprises a male connector 1 and a female connector 2, wherein one end of the male connector 1 is suitable for being connected with one end of a line to be connected in a sealing manner, and one end of the female connector 2 is suitable for being connected with the other end of the line to be connected in a sealing manner; a first valve port 11 and a first valve core 12 are arranged in the male connector 1, and the first valve core 12 is axially pushed to the first valve port 11 by a first spring 13 axially arranged in the male connector 1 to close the first valve port 11; a second valve port 21 and a second valve core 22 are arranged in the female joint 2, and the second valve core 22 is axially pushed to the position of the second valve port 21 by a second spring 23 axially arranged in the female joint 2 to close the second valve port 21; the other end of the male connector 1 and the other end of the female connector 2 are adapted to be detachably, rotatably and sealingly connected by a prepositioning structure 3, and a first wedge 121 at the end of the first valve spool 12 overlaps a second wedge 221 at the end of the second valve spool 22 in the radial direction; in the process that the male connector 1 is rotated to drive the first valve core 12 to rotate, the first wedge 121 rotates relative to the second wedge 221 and is mutually abutted to enable the first wedge and the second wedge to move axially, the first valve core 12 is separated from the first valve port 11, and the second valve core 22 is separated from the second valve port 21, so that the first valve port 11 and the second valve port 21 are opened to communicate a pipeline to be connected; the female connector 2 is provided with a circumferential locking structure which prevents the male connector 1 from rotating after the pipeline to be connected is communicated.
Through the arrangement, after the male connector 1 and the female connector 2 are hermetically connected together through the pre-positioning structure 3, two ends of a pipeline to be connected are not conducted, so that the phenomenon that a medium in the pipeline to be connected is sprayed out from between the male connector 1 and the female connector 2 is avoided, and the quick connector can be normally and quickly connected under the condition that the pipeline to be connected does not need to be closed; through rotating the male joint 1, the first valve core 12 and the second valve core 22 relatively rotate and mutually abut to enable the first valve core 12 to be far away from the first valve port 11 to open the first valve port 11, and the second valve core 22 to be far away from the second valve port 21 to open the second valve port 21, so that the to-be-connected pipeline is conducted, the structure is simple, and the operation is convenient. The position of the male connector 1 is locked through the circumferential locking structure, the male connector 1 is prevented from rotating to influence the flow stability in a pipeline to be connected, and the working stability of the quick connector is improved.
In the hydraulic line quick connector of the present embodiment, the pre-positioning structure 3 includes a first connecting pipe 31 and a second connecting pipe 32, the first connecting pipe 31 is coaxially and fixedly disposed on the male connector 1, and one end of the second connecting pipe 32 is coaxially and fixedly disposed on the female connector 2; the outer side wall of the first connecting pipe 31 is provided with an elastic wedge-shaped positioning pin 311 suitable for radial expansion, one end, opposite to the opening of the first connecting pipe 31, of the elastic wedge-shaped positioning pin 311 is provided with an inclined plane, the inner wall of the second connecting pipe 32 is provided with a circumferential sliding chute 321 and an axial sliding chute 322 axially penetrating through the opening of the circumferential sliding chute 321, and one side, close to the opening of the second connecting pipe 32, of the circumferential sliding chute 321 is communicated with one end, far away from the opening of the second connecting pipe 32, of the axial sliding chute 322; the groove depth of the circumferential sliding groove 321 is greater than that of the axial sliding groove 322; in the process of inserting the first connecting pipe 31 into the second connecting pipe 32, the inclined surface of the elastic wedge-shaped positioning pin 311 is pressed down after abutting against the open end of the second connecting pipe 32, the elastic wedge-shaped positioning pin 311 enters the circumferential sliding groove 321 through the axial sliding groove 322 to be elastically locked so as to realize the sealed connection between the first connecting pipe 31 and the second connecting pipe 32, and in the process of rotating the male connector 1 relative to the female connector 2, the elastic wedge-shaped positioning pin 311 is suitable for sliding in the circumferential sliding groove 321.
Through the arrangement, the elastic wedge-shaped positioning pin 311 on the first connecting pipe 31 is automatically clamped into the circumferential sliding groove 321 to be locked, the first connecting pipe 31 and the second connecting pipe 32 are locked after sealed insertion, the structure is simple, and the connection sealing performance is good.
In the hydraulic line quick connector of this embodiment, the circumferential locking structure includes a control ring 4 sleeved outside the second connecting pipe 32, two opposite sides of the control ring 4 are integrally provided with an unlocking rod 41 and a locking wedge 42, the unlocking rod 41 and the locking wedge 42 both penetrate through a side wall of the second connecting pipe 32 and are adapted to extend into the circumferential sliding groove 321, an inner end of the unlocking rod 41 is limited in the second connecting pipe 32, the unlocking rod 41 is sleeved with a return spring 43, in a natural state, the return spring 43 drives the inner end of the unlocking rod 41 to align with a bottom wall of the circumferential sliding groove 321, and the locking wedge 42 extends into the circumferential sliding groove 321 to form a locking space 44 with a terminal side wall of the circumferential sliding groove 321; when the elastic wedge-shaped positioning pin 311 slides to the locking wedge block 42 in the circumferential sliding groove 321, the elastic wedge-shaped positioning pin 311 slides and abuts against the inclined surface of the locking wedge block 42 to press the locking wedge block 42 into the side wall of the second connecting pipe 32, meanwhile, the return spring 43 is compressed, after the elastic wedge-shaped positioning pin 311 slides to the locking space 44, the locking wedge block 42 extends into the circumferential sliding groove 321 under the action of the return spring 43 to lock the position of the elastic wedge-shaped positioning pin 311, and at the moment, the opening of a pipeline to be connected is the largest; when unlocking is required, the locking wedge 42 is driven to enter the side wall of the second connecting pipe 32 from the circumferential sliding groove 321 to unlock the elastic wedge-shaped positioning pin 311 by pressing one side of the unlocking lever 41 on the control ring 4, so that the elastic wedge-shaped positioning pin 311 can slide in the circumferential sliding groove 321.
To the setting mode of the return spring 43, one end of the return spring 43 is abutted against the inner wall of the control ring 4, and the other end of the return spring 43 is abutted against the outer side wall of the second connecting pipe 32.
In the hydraulic line quick connector of the present embodiment, when the inner end of the unlocking lever 41 is aligned with the upper end of the elastic wedge-shaped positioning pin 311, the control ring 4 is pressed down to drive the unlocking lever 41 to move radially inward so as to disengage the elastic wedge-shaped positioning pin 311 from the circumferential sliding groove 321 to unlock the male connector 1 and the female connector 2, and the male connector 1 is pulled outward to separate the male connector 1 from the female connector 2. Set up unlocking lever 41 on control ring 4, realize the unblock on circumference spout 321 and realize male joint 1 and female joint 2's unblock separation to elastic wedge locating pin 311, simple structure, the function is various, convenient operation, dismantles efficiently.
In the hydraulic pressure pipeline quick-operation joint of this embodiment, the inner of unblock pole 41 aligns with axial spout 322 circumference, moreover, the steam generator is simple in structure, make elasticity wedge locating pin 311 break away from circumference spout 321 through pressing control ring 4 when not rotating male joint 1, then pulling male joint 1 makes elasticity wedge locating pin 311 enter into the slip in the axial spout 322, the degree of spring compression of elasticity wedge locating pin 311 has been reduced, thereby at the in-process of pulling male joint 1 with female joint 2 separation, the extrusion force of elasticity wedge locating pin 311 with second connecting pipe 32 lateral wall has been reduced, the pulling is lighter, can realize the unblock separation of male joint 1 with female joint 2 fast, the degree of wear has also been reduced.
In the hydraulic line quick coupling of the present embodiment, the end of the first wedge 121 is provided with a first abutting end surface 122 perpendicular to the axis thereof, the end of the second wedge 221 is provided with a second abutting end surface 222 perpendicular to the axis thereof, and when the elastic wedge-shaped positioning pin 311 is located in the locking space 44, the first abutting end surface 122 and the second abutting end surface 222 are in interference fit. The interference between the first interference end surface 122 and the second interference end surface 222 improves the installation stability of the first valve spool 12 and the second valve spool 22.
In the hydraulic pipeline quick connector of the embodiment, a first coaxial connecting sleeve 14 is fixedly arranged at one end of the male connector 1, a second coaxial connecting sleeve 24 is integrally arranged at one end of the female connector 2, the first connecting sleeve 14 is suitable for being connected with one end of a pipeline to be connected in a sealing manner, and the second connecting sleeve 24 is suitable for being connected with the other end of the pipeline to be connected in a sealing manner. Through the arrangement, the structure is simple, and the connection stability is good. In addition, the first connecting sleeve 14 may be fixedly arranged on the male connector 1, and the second connecting sleeve 24 may be fixedly arranged on the female connector 2, which are not necessarily integrally arranged.
In the hydraulic pressure pipeline quick connector of this embodiment, a first axial sliding channel 123 is opened to the one end of keeping away from first voussoir 121 on first case 12, male joint 1 internal fixation sets up the first axial gag lever post 15 that slides and stretch into in the first axial sliding channel 123, first axial gag lever post 15 and first case 12 coaxial setting, first spring 13 is established to the cover on the first axial gag lever post 15, the one end of first spring 13 is contradicted with first case 12, the other end of first spring 13 is contradicted with the radial boss in the outer end of first axial gag lever post 15, first axial gag lever post 15 and first case 12 realize circumferential positioning through the key-type connection mode. Through the arrangement, the first valve core 12 is coaxially connected with the first axial limiting rod 15, and circumferential positioning is realized in a key connection mode, so that the first valve core 12 and the male connector 1 synchronously rotate; the first spring 13 is provided so that the first valve element 12 elastically moves in the axial direction in the male connector 1, and in a natural state, the first valve element 12 closes the first port 11.
In the hydraulic pipeline quick connector of the present embodiment, a second axial sliding channel 223 is formed in one end of the second valve core 22, which is far away from the second wedge 221, a second axial limiting rod 25, which extends into the second axial sliding channel 223 in a sliding manner, is fixedly disposed in the female connector 2, the second axial limiting rod 25 and the second valve core 22 are coaxially disposed, the second axial limiting rod 25 is sleeved with a second spring 23, one end of the second spring 23 abuts against the second valve core 22, the other end of the second spring 23 abuts against a radial boss at an outer end of the second axial limiting rod 25, and circumferential fixation of the second axial limiting rod 25 and the second valve core 22 is achieved through a key connection manner. Through the arrangement, the second valve core 22 is coaxially connected with the second axial limiting rod 25, circumferential positioning is achieved through a key connection mode, the second valve core 22 and the female joint 2 rotate synchronously, the second spring 23 is arranged, the second valve core 22 moves axially and elastically in the female joint 2, and the second valve core 22 seals the second valve port 21 in a natural state.
In the hydraulic pipeline quick connector of the present embodiment, the first connecting sleeve 14 is fixedly inserted into the male connector 1, a first supporting disc 16 is disposed in the male connector 1, a first axial limiting rod 15 is integrally disposed at the center of the first supporting disc 16, and the first supporting disc 16 is clamped and positioned between the first connecting sleeve 14 and an annular limiting table in the male connector 1. The second connecting sleeve 24 is fixedly inserted in the female joint 2, a second supporting disc 26 is arranged in the female joint 2, a second axial limiting rod 25 is integrally arranged at the center of the second supporting disc 26, and the second supporting disc 26 is clamped and positioned between the second connecting sleeve 24 and an annular limiting table in the female joint 2, so that the installation is convenient.
In the hydraulic line quick coupler of the present embodiment, the first connection pipe 31 and the second connection pipe 32 are sealed by the sealing ring 5. The sealing structure is simple and the sealing effect is good.
The working principle of the hydraulic pipeline quick connector of the embodiment is as follows:
when the quick connector of the invention is connected with a pipeline, one pipeline is connected with the opening end of the first connecting sleeve 14, and the other pipeline is connected with the opening end of the second connecting sleeve 24. When connection is needed, firstly, the elastic wedge-shaped positioning pin 311 is aligned with the axial sliding groove 322, the male connector 1 is inserted into the female connector 2, the elastic wedge-shaped positioning pin 311 is radially pressed down under the action of the inclined surface on the elastic wedge-shaped positioning pin 311, then enters the circumferential sliding groove 321 through the axial sliding groove 322, at the moment, the male connector 1 and the female connector 2 complete preliminary butt joint and reliable sealing, then the male connector 1 is rotated, the elastic wedge-shaped positioning pin 311 slides along the circumferential sliding groove 321 and is matched with the inclined surface of the locking wedge 42, the locking wedge 42 is pushed to overcome the downward movement of the return spring 43, the elastic wedge-shaped positioning pin 311 passes through the locking wedge 42 to reach the tail end of the circumferential sliding groove 321, then the locking wedge 42 bounces under the action of the return spring 43 to lock the position of the elastic wedge-shaped positioning pin 311, and the male connector 1 cannot rotate relative to the female connector 2, and locking is completed.
During the rotation of the male connector 1, the first valve spool 12 rotates with the male connector 1 relative to the second valve spool 22, the first wedge 121 of the first valve spool 12 collides with the second wedge 221 of the second valve spool 22, so that the first valve spool 12 moves against the first spring 13 to open the first valve port 11, and the second valve spool 22 moves against the second spring 23 to open the second valve port 21, thereby completing the communication of the to-be-connected pipes.
When the male joint 1 and the female joint 2 need to be disassembled, firstly, the control ring 4 is pressed downwards against the return spring 43, so that the locking wedge 42 is released from the positioning of the elastic wedge-shaped positioning pin 311, the male joint 1 is rotated, so that the elastic wedge-shaped positioning pin 311 is aligned with the axial sliding groove 322, meanwhile, the first wedge 121 is separated from the second wedge 221 due to the rotation of the male joint 1, the first valve spool 12 is pushed by the first spring 13 to close the first valve port 11, the second valve spool 22 is pushed by the second spring 23 to close the second valve port 21 to realize circuit breaking, then, the control ring 4 is pressed again, so that the unlocking rod 41 pushes the elastic wedge-shaped positioning pin 311 to move downwards, so that the elastic wedge-shaped positioning pin 311 can enter the axial sliding groove 322, the male joint 1 is pulled outwards, so that the male joint 1 is withdrawn from the female joint 2, and pipeline cutting is completed.
Although only the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and all changes are encompassed in the scope of the present invention.
Claims (10)
1. The hydraulic pipeline quick connector is characterized by comprising a male connector (1) and a female connector (2), wherein one end of the male connector (1) is suitable for being connected with one end of a pipeline to be connected in a sealing mode, and one end of the female connector (2) is suitable for being connected with the other end of the pipeline to be connected in a sealing mode;
a first valve port (11) and a first valve core (12) are arranged in the male connector (1), and the first valve core (12) is axially pushed to the first valve port (11) through a first spring (13) axially arranged in the male connector (1) to close the first valve port (11); a second valve port (21) and a second valve core (22) are arranged in the female joint (2), and the second valve core (22) is axially pushed to the second valve port (21) through a second spring (23) axially arranged in the female joint (2) to close the second valve port (21); the other end of the male connector (1) and the other end of the female connector (2) are suitable for being detachably, rotatably and hermetically connected through a prepositioning structure (3), and a first wedge block (121) at the end part of the first valve core (12) is overlapped with a second wedge block (221) at the end part of the second valve core (22) in the radial direction;
in the process that the rotating male connector (1) drives the first valve core (12) to rotate, the first wedge block (121) rotates relative to the second wedge block (221) and is mutually abutted to enable the first wedge block and the second wedge block to move axially, the first valve core (12) is separated from the first valve port (11), and the second valve core (22) is separated from the second valve port (21) to enable the first valve port (11) and the second valve port (21) to be opened to communicate a pipeline to be connected; the female connector (2) is provided with a circumferential locking structure which prevents the male connector (1) from rotating after the pipeline to be connected is communicated.
2. The hydraulic pipeline quick connector according to claim 1, wherein the pre-positioning structure (3) comprises a first connecting pipe (31) and a second connecting pipe (32), the first connecting pipe (31) is coaxially and fixedly arranged or integrally arranged on the male connector (1), and one end of the second connecting pipe (32) is coaxially and fixedly arranged or integrally arranged on the female connector (2);
the outer side wall of the first connecting pipe (31) is provided with an elastic wedge-shaped positioning pin (311) suitable for radial expansion, an inclined surface is arranged at one end, opposite to the opening of the first connecting pipe (31), of the elastic wedge-shaped positioning pin (311), the inner wall of the second connecting pipe (32) is provided with a circumferential sliding chute (321) and an axial sliding chute (322) axially penetrating through the opening of the circumferential sliding chute, and one side, close to the opening of the second connecting pipe (32), of the circumferential sliding chute (321) is communicated with one end, far away from the opening of the second connecting pipe (32), of the axial sliding chute (322); the groove depth of the circumferential sliding groove (321) is greater than that of the axial sliding groove (322);
in the process of inserting the first connecting pipe (31) into the second connecting pipe (32), the inclined surface of the elastic wedge-shaped positioning pin (311) is pressed down after abutting against the opening end of the second connecting pipe (32), the elastic wedge-shaped positioning pin (311) enters the circumferential sliding groove (321) after passing through the axial sliding groove (322) and is elastically locked to realize the sealing connection of the first connecting pipe (31) and the second connecting pipe (32), and in the process of rotating the male connector (1) relative to the female connector (2), the elastic wedge-shaped positioning pin (311) is suitable for sliding in the circumferential sliding groove (321).
3. The hydraulic pipeline quick connector according to claim 2, wherein the circumferential locking structure comprises a control ring (4) sleeved outside the second connecting pipe (32), two opposite sides of the control ring (4) are fixedly provided with an unlocking rod (41) and a locking wedge block (42) or are integrally provided with the unlocking rod (41) and the locking wedge block (42), the unlocking rod (41) and the locking wedge block (42) both penetrate through the side wall of the second connecting pipe (32) and are suitable for extending into the circumferential sliding groove (321), the inner end of the unlocking rod (41) is limited in the second connecting pipe (32), the unlocking rod (41) is sleeved with a return spring (43), in a natural state, the return spring (43) drives the inner end of the unlocking rod (41) to be aligned with the bottom wall of the circumferential sliding groove (321), and the locking wedge block (42) extends into the circumferential sliding groove (321) to form a locking space (44) with the terminal side wall of the circumferential sliding groove (321);
when the elastic wedge-shaped positioning pin (311) slides to the locking wedge block (42) in the circumferential sliding groove (321), the elastic wedge-shaped positioning pin (311) slides and abuts against the inclined surface of the locking wedge block (42) to press the locking wedge block (42) into the side wall of the second connecting pipe (32), meanwhile, the return spring (43) is compressed, after the elastic wedge-shaped positioning pin (311) slides to the locking space (44), the locking wedge block (42) extends into the circumferential sliding groove (321) under the action of the return spring (43) to lock the position of the elastic wedge-shaped positioning pin (311), and at the moment, the opening of a pipeline to be connected is the largest; when the unlocking is needed, the control ring (4) is pressed to be located on one side of the unlocking rod (41), and the locking wedge block (42) is driven to enter the side wall of the second connecting pipe (32) from the circumferential sliding groove (321) to unlock the elastic wedge-shaped positioning pin (311).
4. The hydraulic pipeline quick connector as claimed in claim 3, wherein when the inner end of the unlocking rod (41) is aligned with the upper end of the elastic wedge-shaped positioning pin (311), the downward pressing control ring (4) drives the unlocking rod (41) to move radially inwards to separate the elastic wedge-shaped positioning pin (311) from the circumferential sliding groove (321) to unlock the male connector (1) and the female connector (2), and the male connector (1) is pulled outwards to separate and disassemble the male connector (1) from the female connector (2).
5. Hydraulic line quick connector according to claim 4, characterized in that the inner end of the unlocking lever (41) is circumferentially aligned with the axial runner (322).
6. Hydraulic line quick-coupling according to any of claims 3-5, characterized in that the end of the first wedge (121) is provided with a first interference end surface (122) perpendicular to its axis, and the end of the second wedge (221) is provided with a second interference end surface (222) perpendicular to its axis, the first interference surface being in mating interference with the second interference end surface (222) when the resilient wedge-shaped positioning pin (311) is located in the locking space (44).
7. Hydraulic line quick connector according to any one of claims 1 to 5, characterized in that one end of the male connector (1) is fixedly or integrally provided with a coaxial first connecting sleeve (14), one end of the female connector (2) is fixedly or integrally provided with a coaxial second connecting sleeve (24), the first connecting sleeve (14) is adapted to be sealingly connected with one end of the line to be connected, and the second connecting sleeve (24) is adapted to be sealingly connected with the other end of the line to be connected.
8. The hydraulic pipeline quick joint according to any one of claims 1-5, wherein a first axial sliding channel (123) is formed in one end of the first valve core (12) far away from the first wedge block (121), a first axial limiting rod (15) which extends into the first axial sliding channel (123) in a sliding manner is fixedly arranged in the male joint (1), a first spring (13) is sleeved on the first axial limiting rod (15), one end of the first spring (13) is abutted against the first valve core (12), the other end of the first spring (13) is abutted against an outer end radial boss of the first axial limiting rod (15), and the first axial limiting rod (15) and the first valve core (12) are circumferentially positioned in a key connection manner.
9. The hydraulic pipeline quick connector according to any one of claims 1 to 5, wherein a second axial sliding channel (223) is formed in one end, away from the second wedge block (221), of the second valve core (22), a second axial limiting rod (25) which extends into the second axial sliding channel (223) in a sliding mode is fixedly arranged in the female connector (2), a second spring (23) is sleeved on the second axial limiting rod (25), one end of the second spring (23) abuts against the second valve core (22), the other end of the second spring (23) abuts against a radial boss of the outer end of the second axial limiting rod (25), and the second axial limiting rod (25) and the second valve core (22) are circumferentially fixed in a key connection mode.
10. The hydraulic pipeline quick connector according to claim 9, wherein the first connecting sleeve (14) is fixedly inserted into the male connector (1), a first supporting disc (16) is arranged in the male connector (1), a first axial limiting rod (15) is integrally arranged at the center of the first supporting disc (16), and the first supporting disc (16) is clamped and positioned between the first connecting sleeve (14) and an annular limiting table in the male connector (1); the second connecting sleeve (24) is fixedly inserted into the female joint (2), a second supporting disc (26) is arranged in the female joint (2), a second axial limiting rod (25) is integrally arranged at the center of the second supporting disc (26), and the second supporting disc (26) is clamped and positioned between the second connecting sleeve (24) and an annular limiting table in the female joint (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210987784.6A CN115289303A (en) | 2022-08-17 | 2022-08-17 | Hydraulic pipeline quick joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210987784.6A CN115289303A (en) | 2022-08-17 | 2022-08-17 | Hydraulic pipeline quick joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115289303A true CN115289303A (en) | 2022-11-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210987784.6A Pending CN115289303A (en) | 2022-08-17 | 2022-08-17 | Hydraulic pipeline quick joint |
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| Country | Link |
|---|---|
| CN (1) | CN115289303A (en) |
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| CN116336197A (en) * | 2023-05-25 | 2023-06-27 | 华英阀业有限公司 | Wear-resistant throttle valve and application method thereof |
| CN116722396A (en) * | 2023-08-10 | 2023-09-08 | 常州协创智联电子有限公司 | Connector wiring fixing device and wiring method |
| CN117905728A (en) * | 2024-03-20 | 2024-04-19 | 泰州市江丰泵业有限公司 | Bayonet joint of submersible electric pump |
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| CN117905728A (en) * | 2024-03-20 | 2024-04-19 | 泰州市江丰泵业有限公司 | Bayonet joint of submersible electric pump |
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