CN115000752A - High-voltage-resistant watertight cable connector with through type compensation channel - Google Patents
High-voltage-resistant watertight cable connector with through type compensation channel Download PDFInfo
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- CN115000752A CN115000752A CN202210622685.8A CN202210622685A CN115000752A CN 115000752 A CN115000752 A CN 115000752A CN 202210622685 A CN202210622685 A CN 202210622685A CN 115000752 A CN115000752 A CN 115000752A
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- socket
- plug
- valve
- assembly
- shell
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5202—Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/523—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases for use under water
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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Abstract
The invention relates to a high-pressure-resistant watertight cable connector with a through type compensation channel, which comprises a socket assembly and a plug assembly which are oppositely plugged and matched, wherein a socket valve is installed on the axial through socket assembly, and a plug valve is installed on the axial through plug assembly; when female contact pin plug-in mounting targets in place in public contact pin and plug subassembly in the socket subassembly, there is the interval in socket subassembly and the opposite tip of plug subassembly, socket valve and plug valve are by blocking the conversion to the intercommunication state simultaneously, liquid is in socket subassembly axial, interval department, plug subassembly axial circulation to state switch through the valve forms through-going compensation passageway behind the connector plug-in mounting, through the principle of water oil pressure compensation, greatly helping hand is in the power transmission who guarantees the super high pressure environment under water, security and reliability height.
Description
Technical Field
The invention relates to the technical field of watertight connectors, in particular to a high-pressure-resistant watertight cable connector with a through type compensation channel.
Background
A large amount of marine oil and gas production, deep sea mining equipment, underwater construction machinery, manned submersible vehicles, unmanned submersible vehicles and other various marine work platforms need various underwater devices to provide guarantee in underwater activities, and the devices generally realize energy supply under the water pressure environment through pressure-bearing watertight cable connectors.
In the prior art, the watertight cable connector used in mainstream is a rubber type watertight cable connector, the watertight connection between a plug metal piece and a rubber tail cable is realized by adopting a rubber vulcanization technology, the water pressure borne by the watertight cable connector in an underwater environment has a certain limit, and because of the immaturity of the rubber vulcanization technology in China and the limitation of the technology, the watertight cable connector is poor in reliability, especially in the deep sea, the seawater pressure borne by the watertight cable connector is higher, and the failure risk is higher. If faults such as short circuit, open circuit and leakage occur during underwater work, the underwater equipment can be greatly damaged, and great hidden danger is brought to the safety of personnel and equipment.
The watertight cable connector used in the existing underwater equipment field depends on import seriously, and is particularly applied to various deep sea equipment with water depth of thousands of meters or even ten thousand meters, the watertight cable connector is monopolized by imported products, the price is extremely high, and the price of a single piece is thousands to tens of thousands of times; even so, its reliability under the super high water pressure environment is still low, often takes place the water leakage accident.
Disclosure of Invention
The applicant aims at the defects in the prior art and provides a high-pressure-resistant watertight cable connector with a through type compensation channel, which is reasonable in structure, so that the power transmission in an underwater ultrahigh-pressure environment is greatly assisted, and the safety and the reliability are high.
The technical scheme adopted by the invention is as follows:
a high-pressure-resistant watertight cable connector with a through type compensation channel comprises a socket assembly and a plug assembly which are oppositely plugged and matched, wherein a socket valve is installed on the axial through socket assembly, and a plug valve is installed on the axial through plug assembly; when the male contact pin in the socket assembly and the female contact pin in the plug assembly are inserted in place, the opposite end parts of the socket assembly and the plug assembly have a distance, the socket valve and the plug valve are switched to a communicated state by blocking, and liquid flows in the axial direction of the socket assembly, the distance and the axial direction of the plug assembly.
As a further improvement of the above technical solution:
the socket assembly is arranged in the middle of an axially through socket shell inner hole, the plug assembly is arranged at the end part of an axially through plug shell inner hole, and the plug shell end part extends into the socket shell inner hole during plug-in mounting; the outer wall surface of the socket assembly is attached to the inner wall surface of the socket shell and is provided with a sealing element II in a pressing mode, the outer wall surface of the plug assembly is attached to the inner wall surface of the plug shell and is provided with a sealing element IV in a pressing mode, and the outer wall surface of the plug shell is attached to the inner wall surface of the socket shell and is provided with a sealing element III in a pressing mode.
The socket assembly and the plug assembly are both of circumferential rotation structures, a limiting structure for preventing circumferential relative rotation is arranged between the socket assembly and the socket shell, and another limiting structure for preventing circumferential relative rotation and having the same structure is arranged between the plug assembly and the plug shell.
The end part of the socket component, which is far away from the plug component, is provided with a step limiting structure matched with the socket shell, and the inner wall surface of the socket shell at the other end of the socket component is embedded with a socket retainer ring; the plug assembly is characterized in that a plug retainer ring for preventing the plug assembly from falling off is embedded at the end part of the inner hole of the plug housing, and the other end of the plug assembly is provided with another group of step limiting structures matched with the plug housing.
The outer wall surface of the plug shell extends outwards along the circumference to form a convex block, and when the end part of the plug shell extends into the inner hole of the socket shell and is inserted in place, the convex block gradually approaches and is attached to the end head of the socket shell; a threaded sleeve check ring is embedded on the outer wall surface of the plug shell positioned outside the end head of the socket shell along the circumferential direction, and an interval exists between the threaded sleeve check ring and the convex block; the socket further comprises a rotary threaded sleeve, one end of the rotary threaded sleeve is inwards contracted and embedded between the threaded sleeve check ring and the convex block, and the other end of the rotary threaded sleeve is sleeved on the outer wall surface of the socket shell and is in threaded assembly.
The outer wall surface of the end part of the socket shell, which is far away from the plug assembly, is assembled on the wall surface of the oil filling equipment through a thread structure, and a first sealing element is also pressed between the socket shell and the outer wall surface of the oil filling equipment; the end part of the plug assembly, which deviates from the socket shell, is sleeved with a hose, and the end part of the hose is fastened relative to the plug assembly through a hoop in a sleeved mode.
The end part of the plug assembly sleeved with the hose is inwards concave along the circumferential direction to form an inwards concave part, a transition of a slope structure is arranged between the edge of one end of the inwards concave part and the outer wall surface of the plug assembly, and a circumferential outwards convex flange is formed between the edge of the other end of the inwards concave part and the end head of the plug assembly; the flanges are positioned inside the hose, and the anchor ear is sleeved at the concave part of the plug assembly.
The socket assembly comprises a socket core, a plurality of mutually parallel male pins are inserted through the socket core along the circumferential direction, and socket valves are also installed on the socket core positioned on the inner sides of the male pins in a penetrating manner;
the plug assembly comprises a plug core, a plurality of female contact pins which are parallel to each other are inserted in the plug core in a penetrating mode along the circumferential direction, and plug valves are further installed on the plug core which is located on the inner sides of the female contact pins in a penetrating mode;
the plurality of male pins and the plurality of female pins are correspondingly inserted one by one.
The axial direction of the socket valve and the axial direction of the plug valve are arranged in parallel and staggered with each other; during insertion, the socket valve is pressed and applied by the end face of the plug assembly to switch states, and the plug valve is pressed and applied by the end face of the socket assembly to switch states.
The structure of the socket valve is the same as that of the plug valve, and the specific structure of the socket valve is as follows: the plug assembly comprises a valve rod movably inserted in the socket assembly along the axial direction, one end of the valve rod extends out of the socket assembly and faces towards the plug assembly, the other end of the valve rod shrinks in the diameter direction to form a thin rod part, and the thin rod part is positioned in the socket assembly and fixedly connected with a stopper at the end part; the thin rod part is sleeved with an elastic part, one end of the elastic part is attached to the step of the thin rod part formed by contraction of the valve rod, and the other end of the elastic part is attached to the valve seat; the valve seat is fixed on the wall of the socket assembly hole outside the circumference of the valve rod, and the end part of the valve seat positioned outside the thin rod part is attached to the side surface of the stopper along the circumferential direction; a gap exists between the circumferential direction of the stop head and the hole wall of the socket assembly, the end part of the valve rod moves towards the inside of the socket assembly under the action of the force of the plug assembly, and the valve seat is separated from the stop head.
The invention has the following beneficial effects:
the invention has compact and reasonable structure and convenient operation, forms a through type compensation channel after the plug-in connector is plugged through the state switching of the valve, greatly assists in ensuring the power transmission of the underwater ultrahigh pressure environment through the principle of water-oil pressure compensation, has high safety and reliability, and is particularly suitable for the use of oil-filled underwater equipment;
the invention adopts the structural design of the through type compensation channel, realizes the internal and external pressure balance of the watertight cable connector and the underwater oil charging equipment, avoids the risk of bearing failure, and can be applied to the ultrahigh water pressure environment;
the invention adopts the structure design of the double valves, realizes the automatic opening of the compensation channel during the plugging assembly of the watertight cable connector and the automatic closing function of the compensation channel during the unplugging separation, and effectively avoids the leakage of oil on the basis of effectively ensuring the reliable use under high water pressure.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
Fig. 3 is a partially enlarged view of B in fig. 1.
Fig. 4 is a schematic structural diagram of the socket housing and the socket assembly of the present invention.
Fig. 5 is a schematic structural view of the plug housing and the plug assembly of the present invention.
Fig. 6 is a schematic view (blocking state) of the structure of the socket valve of the present invention.
Fig. 7 is a partial enlarged view at C in fig. 6.
Fig. 8 is a schematic structural view (communication state) of the socket valve of the present invention.
Fig. 9 is a partial enlarged view of fig. 8 at D.
Fig. 10 is a schematic structural view of the socket assembly of the present invention.
Fig. 11 is a side view of fig. 10.
Wherein: 1. an oil-filled device; 11. a first sealing element;
21. a first cable; 22. a second cable;
3. a socket housing;
4. a receptacle assembly; 41. a male contact pin; 42. a socket core; 43. a second sealing element; 44. a socket valve; 45. a socket retainer ring; 421. a through hole; 422. an outer step structure; 423. a convex edge;
441. a valve stem; 442. an elastic member; 443. a thin rod part; 444. a valve seat; 445. a stopper; 4441. an inner step structure;
5. a plug assembly; 51. a plug retainer ring; 52. a third sealing element; 53. a plug core; 54. a fourth sealing element; 55. a female pin; 56. a plug valve;
6. rotating the threaded sleeve; 61. a threaded sleeve retainer ring; 62. a convex edge;
7. a plug housing; 71. a bump; 72. a retainer groove; 73. a bevel structure; 74. an inner concave portion; 75. blocking edges;
8. a hose; 81. hooping;
k. and (4) spacing.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1 and fig. 2, the high-pressure-resistant watertight cable connector with the through-type compensation channel of the present embodiment includes a receptacle assembly 4 and a plug assembly 5 which are mated with each other, a receptacle valve 44 is installed axially through the receptacle assembly 4, and a plug valve 56 is installed axially through the plug assembly 5; when the male pins 41 of the socket assembly 4 and the female pins 55 of the plug assembly 5 are inserted in place, a gap k exists between the opposite ends of the socket assembly 4 and the plug assembly 5, the socket valve 44 and the plug valve 56 are switched to a communication state by blocking, and liquid flows axially through the socket assembly 4 and the plug assembly 5 at the gap k.
In the embodiment, the through type compensation channel is formed after the plug connectors are inserted and connected through state switching of the valve, and power transmission in an underwater ultrahigh-pressure environment is guaranteed by combining the principle of hydraulic pressure compensation, so that the valve is particularly suitable for use of oil-filled underwater equipment.
The socket assembly 4 is arranged in the middle of an inner hole of the socket shell 3 which is axially communicated, the plug assembly 5 is arranged at the end part of an inner hole of the plug shell 7 which is axially communicated, and the end part of the plug shell 7 extends into the inner hole of the socket shell 3 during insertion, so that the plug assembly 5 gradually approaches the socket assembly 4 until the female contact pins 55 and the male contact pins 41 are correspondingly inserted in place; the outer wall surface of the socket component 4 is attached to the inner wall surface of the socket shell 3 and is provided with a second sealing element 43 in a pressing mode, the outer wall surface of the plug component 5 is attached to the inner wall surface of the plug shell 7 and is provided with a fourth sealing element 54 in a pressing mode, the outer wall surface of the plug shell 7 is attached to the inner wall surface of the socket shell 3 and is provided with a third sealing element 52 in a pressing mode, and the sealing elements are arranged between the inner wall and the outer wall, so that the formed through type compensation channel is relatively closed and reliable, and the reliability in the using process is effectively guaranteed.
In this embodiment, the socket assembly 4 is disposed in the middle of the inner hole of the socket housing 3, so that after the socket assembly is inserted in place, a relatively closed internal circulation space is formed between the end of the socket assembly 4 and the end of the plug assembly 5 by a distance k, and the through compensation channel is assisted to be formed.
The socket assembly 4 and the plug assembly 5 are both circumferential rotary structures, a limiting structure for preventing circumferential relative rotation is arranged between the socket assembly 4 and the socket shell 3, and another limiting structure for preventing circumferential relative rotation and having the same structure is arranged between the plug assembly 5 and the plug shell 7.
In this embodiment, the limiting structures for preventing the circumferential relative rotation between the socket assembly 4 and the socket housing 3 and between the plug assembly 5 and the plug housing 7 have the same structure, taking the limiting structure between the socket assembly 4 and the socket housing 3 as an example, a rib 423 extends axially from the end of the circumferential wall surface of the socket core 42 of the socket assembly 4, a groove corresponding to the rib 423 is formed in the wall surface of the inner hole of the socket housing 3, and the circumferential limitation after the assembly between the socket assembly 4 and the socket housing 3 is realized by the matched insertion of the rib 423 and the groove, which is reliable and practical, as shown in fig. 10 and 11.
In this embodiment, the socket assembly 4 and the plug assembly 5 are both configured as a circumferential revolving structure, such as a cylindrical structure, which facilitates reliable sealing when being assembled with the corresponding socket housing 3 and plug housing 7; of course, the receptacle assembly 4 and the plug assembly 5 may also be configured as a non-circumferential rotation structure, such as a cylindrical structure with a square or rectangular cross section, and the wall surfaces of the receptacle housing 3 and the plug housing 7 are adapted to be mounted and attached to each other are reliably sealed.
The end part of the socket component 4, which is far away from the plug component 5, is provided with a step limiting structure matched with the socket shell 3, and the inner wall surface of the socket shell 3 at the other end of the socket component 4 is embedded with a socket retainer ring 45; the end part of the inner hole of the plug shell 7 is embedded with a plug retainer ring 51 for preventing the plug component 5 from falling off, and the other end of the plug component 5 is provided with another group of step limiting structures matched with the plug shell 7.
In this embodiment, the structures of the step limiting structures between the socket assembly 4 and the socket housing 3 and between the plug assembly 5 and the plug housing 7 are the same, and the step limiting structure between the socket assembly 4 and the socket housing 3 is taken as an example for description; as shown in fig. 10 and 11, the end of the socket core 42 in the socket assembly 4 is contracted inward in the diameter direction to form an outer step structure 422, an inner hole of the socket housing 3 is provided with an inner step matching with the outer step structure 422, in the process that the socket assembly 4 is inserted inwards from the opening of the socket housing 3, the outer step structure 422 gradually approaches and contacts and is attached to the inner step, the socket assembly is inserted in place, and then the socket retaining ring 45 is inserted into the opening of the socket housing 3 to prevent the socket assembly 4 from being separated, so that the insertion and the limiting of the socket assembly 4 in the socket housing 3 are completed.
In this embodiment, the protruding ribs 423 and the grooves in the limiting structure for preventing relative circumferential rotation may be disposed on the outer step structure 422 and the corresponding inner steps, so that when the socket assembly 4 is inserted in place relative to the socket housing 3, the axial insertion direction and the circumferential rotation direction are limited, and the final insertion is reliable.
As shown in fig. 3, the outer wall surface of the plug housing 7 extends outward along the circumference to form a protrusion 71, and when the end of the plug housing 7 extends into the inner hole of the socket housing 3 and is inserted in place, the protrusion 71 gradually approaches and fits the end of the socket housing 3; a threaded sleeve retaining ring 61 is embedded on the outer wall surface of the plug shell 7 positioned outside the end head of the socket shell 3 along the circumferential direction, and an interval exists between the threaded sleeve retaining ring 61 and the bump 71; the socket further comprises a rotary threaded sleeve 6, one end of the rotary threaded sleeve 6 is inwardly contracted and embedded between the threaded sleeve retainer ring 61 and the bump 71, and the other end of the rotary threaded sleeve 6 is sleeved on the outer wall surface of the socket shell 3 and assembled in a threaded mode.
In this embodiment, a retainer groove 72 is formed along the circumferential direction on the wall surface of the plug housing 7 located outside the side surface of the projection 71 away from the receptacle housing 3, and the screw insert retainer 61 is fitted in the retainer groove 72 to block the end of the rotary screw insert 6.
In this embodiment, the thread insert retaining ring 61 is a cylindrical structure, the inner wall of the thread insert retaining ring 61 is provided with a thread structure and is spirally sleeved on the outer wall surface of the socket housing 3, the end of the thread insert retaining ring 61 is inwardly contracted to form a convex edge 62, when the thread insert retaining ring 61 rotates to the socket housing 3 along the thread structure, the convex edge 62 gradually approaches and is attached to the side surface of the convex block 71, so as to prevent the thread insert retaining ring 61 from being further screwed in, and the thread insert retaining ring 61 is externally installed on the side surface of the convex edge 62 away from the convex block 71, so as to prevent the thread insert retaining ring 61 from being reversely screwed out, so as to perform axial bidirectional limiting on the thread insert retaining ring 61, and the axial stability and reliability of the plug housing 7 after being inserted into the socket housing 3 are guaranteed through reliable installation of the thread insert retaining ring 61.
The outer wall surface of the end part of the socket shell 3, which is far away from the plug assembly 5, is assembled on the wall surface of the oil filling equipment 1 through a thread structure, and a sealing element I11 is also pressed between the socket shell 3 and the outer wall surface of the oil filling equipment 1 so as to help to ensure the isolation of the inside and the outside; the end of the plug assembly 5 facing away from the socket housing 3 is sleeved with a hose 8, and the end of the hose 8 is sleeved and fastened with respect to the plug assembly 5 through a hoop 81.
As shown in fig. 5, an inner concave portion 74 is formed at the end of the plug assembly 5 where the hose 8 is sleeved, the transition of the inclined surface structure 73 is arranged between the edge of one end of the inner concave portion 74 and the outer wall surface of the plug assembly 5, and a rib 75 protruding outwards in the circumferential direction is formed between the edge of the other end of the inner concave portion 74 and the end of the plug assembly 5; the rib 75 is positioned inside the hose 8, and the anchor ear 81 is sleeved at the concave part 74 of the plug component 5; the hose 8 sleeved at the end part of the plug assembly 5 is internally supported and externally tightened through the flanges 75 and the hoop 81, so that the hose 8 is stably and reliably attached to the outer wall surface of the plug assembly 5, and the tightness of the joint is realized and ensured through the deformation attachment assistance of the hose 8 at the sleeved part.
As shown in fig. 4, the socket assembly 4 includes a socket core 42, a plurality of mutually parallel male pins 41 are inserted through the socket core 42 along the circumferential direction, and a socket valve 44 is further installed through the socket core 42 inside the plurality of male pins 41;
the plug assembly 5 comprises a plug core 53, a plurality of female pins 55 which are parallel to each other are inserted through the plug core 53 along the circumferential direction, and a plug valve 56 is also inserted and installed on the plug core 53 positioned at the inner side of the plurality of female pins 55;
the plurality of male pins 41 are inserted in one-to-one correspondence with the plurality of female pins 55.
In this embodiment, the socket core 42 forms a base for mounting the male pins 41 and the socket valve 44, and is inserted and matched with the socket housing 3 through the appearance of the socket core 42; the plug core 53 forms a base body for mounting the female pin 55 and the plug valve 56, and is matched to the plug housing 7 by the contour of the plug core 53.
In this embodiment, in order to mount the male pin 41 and the socket valve 44 in a penetrating manner, the socket core 42 is provided with an axially penetrating hole, such as a through hole 421 for mounting the socket valve 44, two ends of the male pin 41 are respectively extended out of corresponding orifices while being fixedly inserted into the socket core 42, one end of the male pin is used for being inserted into and matched with the female pin 55 after protruding, and the other end of the male pin is used for being connected with a first cable 21 to be connected; the through hole 421 is arranged, so that the axial through of the socket assembly 4 in the communication state of the socket valve 44 can be reliably ensured while the installation of the socket valve 44 is realized;
similarly, in order to install the female pin 55 and the plug valve 56 in a penetrating manner, a similar axially penetrating hole is also formed in the plug core 53, one end of the female pin 55 is flush with the hole and is provided with an inner blind hole inserted with the male pin 41, and the other end of the female pin 55 extends out of the hole and is connected with the corresponding second cable 22; therefore, after the male pin 41 and the female pin 55 are inserted, the first cable 21 and the second cable 22 are electrically connected.
The axial direction of the socket valve 44 is arranged in parallel with the axial direction of the plug valve 56 and staggered with respect to each other; during insertion, the state of the plug valve 44 is switched by the pressing force of the end face of the plug assembly 5, and the state of the plug valve 56 is switched by the pressing force of the end face of the socket assembly 4; the offset arrangement of the socket valve 44 and the plug valve 56 ensures reliable and stable switching of the respective valve states during insertion.
In this embodiment, the number of the socket valves 44 and the plug valves 56 may be one group, or two or more groups according to actual needs.
When the state is switched to the circulation state, the outer end of the valve rod 441 of the socket valve 44 is attached to and extruded by the plug assembly 5, and a circulation gap exists between the outer end of the valve rod 441 and the through hole 421 of the socket assembly 4; similarly, in the flow-through state, a flow-through gap is also formed between the outer end of the valve rod 441 of the plug valve 56 and the through hole 421 of the plug assembly 5.
The socket valve 44 has the same structure as the plug valve 56, and as shown in fig. 6 and 7, the specific structure of the socket valve 44 is as follows: the plug assembly comprises a valve rod 441 which is movably inserted in the socket assembly 4 along the axial direction, one end of the valve rod 441 extends out of the socket assembly 4 and faces towards the plug assembly 5, the other end of the valve rod 441 contracts in the diameter direction to form a thin rod portion 443, and the thin rod portion 443 is positioned in the socket assembly 4 and is fixedly connected with a stopper 445 at the end part; the thin rod part 443 is sleeved with an elastic element 442, one end of the elastic element 442 is attached to the step of the valve rod 441 contracted into the thin rod part 443, and the other end of the elastic element 442 is attached to the valve seat 444; the valve seat 444 is fixed on the hole wall of the socket component 4 outside the circumference of the valve rod 441, and the end part of the valve seat 444 positioned outside the thin rod part 443 is attached to the side surface of the stop 445 along the circumferential direction; a gap exists between the circumferential direction of the stopper 445 and the wall of the hole of the socket assembly 4, the end of the valve rod 441 moves towards the inside of the socket assembly 4 under the action of the plug assembly 5, and the valve seat 444 is separated from the stopper 445, as shown in fig. 8 and 9, so that the inner wall of the valve seat 444 is communicated with the inner hole of the socket assembly 4 at the stopper 445.
In this embodiment, the valve seat 444 is a cylindrical structure with an axial hollow center, and is internally installed in the through hole 421 of the socket core 42, one end of the valve seat is flush with the opening, and the other end of the valve seat is recessed and contracted to be located between the stopper 445 and the elastic element 442, so that the elastic element 442 is applied with force by contact or attached to the stopper 445, and the valve seat 444 is convenient and reliable to install and can help ensure the accuracy of the installation position of the valve seat 444 in the socket core 42;
in this embodiment, the outer wall surface of the end portion of the valve seat 444 recessed and contracted forms a conical surface structure facing the stopper 445, so as to reduce the contact area while ensuring the circumferential contact between the end head and the stopper 445, thereby improving the reliability and flexibility of state switching; the inner wall surface of the end part of the valve seat 444 which is recessed and contracted forms an inner step structure 4441 which is attached to the end part of the elastic element 442, so as to ensure the stable balance of the stress and contraction of the elastic element 442 when the valve rod 441 is contracted;
in this embodiment, both ends of the valve rod 441 penetrate the valve seat 444, and a gap is formed between the outer wall surface of the valve rod 441 and the inner wall surface of the valve seat 444 in order to ensure the penetration in the communicating state.
In this embodiment, the outer end of the valve rod 441 may be engaged with a force-bearing end block having a larger diameter, the force-bearing end block is driven by a force along the axial direction of the valve rod 441 to retract toward the socket core 42, and the width of the force-bearing end block along the retracting direction is smaller than the distance k between the socket module 4 and the plug module 5 in the circulation state.
As shown in fig. 10 and 11, which is a preferred example of the present embodiment, taking the socket assembly 4 as an example, the socket core 42 in the socket assembly 4 is provided with a cylindrical structure with a circular cross section, six groups of male pins 41 are uniformly installed along the circumferential direction at intervals, and the socket valve 44 is installed on the socket core 42 inside the six groups of male pins 41; one end of the socket core 42 is recessed inwards along the circumferential direction to form an outer step structure 422, a convex rib 423 extends outwards in the radial direction at one position of the circumference of the outer step structure 422, when the socket assembly 4 and the socket shell 3 are installed, the arrangement of the outer step structure 422 forms the limit of the installation direction, and the convex rib 423 realizes the limit of the circumferential relative rotation, so that the installation reliability between the socket assembly 4 and the socket shell 3 is good.
In the embodiment, the structural design of the through type compensation channel is adopted, so that the internal and external pressure balance of the watertight cable connector and the underwater oil filling equipment is realized, the risk of pressure bearing failure is avoided, and the device can be applied to an ultrahigh water pressure environment;
in the embodiment, the automatic opening of the compensation channel and the automatic closing of the compensation channel during the pulling-out separation during the plugging-in assembly of the watertight cable connector are realized by adopting the structural design of the double valves, and the leakage of oil is effectively avoided on the basis of effectively ensuring the reliable use under high water pressure.
The practical use mode of the embodiment is as follows:
embedding a first sealing element 11 in the end of the threaded structure of the socket shell 3 provided with the socket component 4, connecting the tail end of a male contact pin 41 in the socket component 4 with a first cable 21 of the oil filling equipment 1, and spirally mounting the threaded structure of the socket shell 3 on the wall surface of the oil filling equipment 1 until the end of the socket shell 3 is abutted against the outer wall surface of the oil filling equipment 1, and extruding the first sealing element 11;
connecting the tail end of a female pin 55 in the plug assembly 5 with a second cable 22 in the hose 8, sleeving the hose 8 on the end part of the plug shell 7 provided with the plug assembly 5, and fixing the hose 8 through a hoop 81;
installing a third sealing element 52 on the inner wall surface of the socket shell 3, extending the plug shell 7 into the socket shell 3 until the male contact pin 41 and the female contact pin 55 are inserted correspondingly;
the rotary screw sleeve 6 is screwed and locked from the end of the plug shell 7 to the end of the socket shell 3 until the convex edge 62 of the rotary screw sleeve 6 abuts against the convex block 71 of the plug shell 7, and the screw sleeve retainer ring 61 is embedded on the plug shell 7 on the other side of the convex edge 62 for limiting, at this time, the male contact pin 41 and the female contact pin 55 are inserted in place, the end parts of the valve rods 441 of the socket valve 44 and the plug valve 56 are compressed by extrusion force and retracted, the blocking state is converted into the communicating state, and the elastic piece 442 is compressed, so that a through oil passage is formed among the hose 8, the plug valve 56, the distance k between the plug assembly 5 and the socket assembly 4, the socket valve 44 and the oil filling equipment 1.
The invention is based on the state switching of the valve, forms a through compensation channel in the inserted watertight connector, greatly assists in ensuring the power transmission of the underwater ultrahigh-pressure environment, has high safety and reliability, and is particularly suitable for the use of oil-filled underwater equipment.
The above description is intended to be illustrative and not restrictive, and the scope of the invention is defined by the appended claims, which may be modified in any manner within the scope of the invention.
Claims (10)
1. The utility model provides a high pressure resistant type watertight cable connector with through compensation passageway which characterized in that: the plug-in type socket comprises a socket component (4) and a plug component (5) which are oppositely plugged and matched, wherein a socket valve (44) is installed on the axial through socket component (4), and a plug valve (56) is installed on the axial through plug component (5); when the male pins (41) in the socket assembly (4) and the female pins (55) in the plug assembly (5) are inserted in place, a gap (k) exists between opposite ends of the socket assembly (4) and the plug assembly (5), meanwhile, the socket valve (44) and the plug valve (56) are switched to a communication state by blocking, and liquid flows in the axial direction of the socket assembly (4) and the gap (k) and in the axial direction of the plug assembly (5).
2. A high-pressure-resistant watertight cable connector with a pass-through compensation channel as claimed in claim 1, wherein: the socket assembly (4) is arranged in the middle of an inner hole of the socket shell (3) which is axially through, the plug assembly (5) is arranged at the end part of an inner hole of the plug shell (7) which is axially through, and the end part of the plug shell (7) extends into the inner hole of the socket shell (3) during plug-in mounting; the outer wall surface of the socket component (4) is attached to the inner wall surface of the socket shell (3) and is provided with a second sealing element (43) in a pressing mode, the outer wall surface of the plug component (5) is attached to the inner wall surface of the plug shell (7) and is provided with a fourth sealing element (54) in a pressing mode, and the outer wall surface of the plug shell (7) is attached to the inner wall surface of the socket shell (3) and is provided with a third sealing element (52) in a pressing mode.
3. A high-pressure-resistant watertight cable connector with a pass-through compensation channel according to claim 2, wherein: socket subassembly (4) and plug subassembly (5) are circumference gyration structure, are provided with the limit structure who prevents circumference relative rotation jointly between socket subassembly (4) and socket shell (3), are provided with the limit structure that another group's structure is the same that prevents circumference relative rotation jointly between plug subassembly (5) and plug shell (7).
4. A high-pressure-resistant watertight cable connector with a pass-through compensation channel according to claim 2, wherein: a step limiting structure matched with the socket shell (3) is arranged at the end part of the socket component (4) deviating from the plug component (5), and a socket retainer ring (45) is embedded on the inner wall surface of the socket shell (3) at the other end of the socket component (4); the plug assembly is characterized in that a plug retainer ring (51) for preventing the plug assembly (5) from falling off is embedded in the end part of an inner hole of the plug housing (7), and the other end of the plug assembly (5) is provided with another group of step limiting structures matched with the plug housing (7).
5. A high-pressure-resistant watertight cable connector with a pass-through compensation channel according to claim 2, wherein: the outer wall surface of the plug outer shell (7) extends outwards along the circumference to form a bump (71), when the end part of the plug outer shell (7) extends into the inner hole of the socket outer shell (3) and is inserted in place, the bump (71) gradually approaches and is attached to the end of the socket outer shell (3); a threaded sleeve check ring (61) is embedded on the outer wall surface of the plug shell (7) positioned outside the end head of the socket shell (3) along the circumferential direction, and a gap is reserved between the threaded sleeve check ring (61) and the bump (71); the socket further comprises a rotary threaded sleeve (6), one end of the rotary threaded sleeve (6) is retracted inwards and embedded between the threaded sleeve retainer ring (61) and the bump (71), and the other end of the rotary threaded sleeve (6) is sleeved on the outer wall surface of the socket shell (3) and assembled in a threaded mode.
6. A high-pressure-resistant watertight cable connector with a pass-through compensation channel according to claim 2, wherein: the outer wall surface of the end part of the socket shell (3) departing from the plug component (5) is assembled on the wall surface of the oil filling equipment (1) through a thread structure, and a first sealing element (11) is also installed between the socket shell (3) and the outer wall surface of the oil filling equipment (1) in a pressing mode; the end part of the plug assembly (5) departing from the socket shell (3) is sleeved with a hose (8), and the end part of the hose (8) is sleeved and fastened relative to the plug assembly (5) through a hoop (81).
7. A watertight cable connector of the high pressure type with pass-through compensation channel according to claim 6, wherein: the end part of the plug assembly (5) sleeved with the hose (8) is inwards concave along the circumferential direction to form an inner concave part (74), a transition of a slope structure (73) is arranged between the edge of one end of the inner concave part (74) and the outer wall surface of the plug assembly (5), and a circumferentially outwards convex flange (75) is formed between the edge of the other end of the inner concave part (74) and the end head of the plug assembly (5); the rib (75) is positioned inside the hose (8), and the hoop (81) is sleeved at the concave part (74) of the plug component (5).
8. A high-pressure-resistant watertight cable connector with a pass-through compensation channel as claimed in claim 1, wherein: the socket assembly (4) comprises a socket core (42), a plurality of mutually parallel male pins (41) are inserted and arranged along the circumferential direction after penetrating through the socket core (42), and a socket valve (44) is also installed on the socket core (42) positioned on the inner side of the male pins (41) in a penetrating manner;
the plug assembly (5) comprises a plug core (53), a plurality of female pins (55) which are parallel to each other are inserted in the plug core (53) in a penetrating way along the circumferential direction, and a plug valve (56) is further installed on the plug core (53) which is positioned on the inner side of the female pins (55) in a penetrating way;
the plurality of male pins (41) and the plurality of female pins (55) are correspondingly inserted one by one.
9. A watertight cable connector of the high pressure type with pass-through compensation channel according to claim 1 or 8, wherein: the axial direction of the socket valve (44) and the axial direction of the plug valve (56) are arranged in parallel and staggered with each other; during insertion, the state of the receptacle valve (44) is switched by the pressing and urging force of the end face of the plug unit (5), and the state of the plug valve (56) is switched by the pressing and urging force of the end face of the receptacle unit (4).
10. A watertight cable connector of the high pressure type with pass-through compensation channel according to claim 1 or 8, wherein: the structure of the socket valve (44) is the same as that of the plug valve (56), and the specific structure of the socket valve (44) is as follows: the plug-in type plug-in connector comprises a valve rod (441) which is movably inserted into a socket component (4) along the axial direction, one end of the valve rod (441) extends out of the socket component (4) and faces towards a plug component (5), the other end of the valve rod (441) contracts in the diameter direction to form a thin rod part (443), and the thin rod part (443) is positioned inside the socket component (4) and fixedly connected with a stop head (445) at the end part; the thin rod part (443) is sleeved with an elastic part (442), one end of the elastic part (442) is attached to the step of the valve rod (441) which is contracted into the thin rod part (443), and the other end of the elastic part (442) is attached to the valve seat (444); the valve seat (444) is fixed on the hole wall of the socket component (4) outside the circumference of the valve rod (441), and the end part of the valve seat (444) positioned outside the thin rod part (443) is attached to the side surface of the stop head (445) along the circumferential direction; a gap exists between the circumferential direction of the stop head (445) and the hole wall of the socket component (4), the end part of the valve rod (441) moves towards the inside of the socket component (4) under the action of the force of the plug component (5), and the valve seat (444) is separated from the stop head (445).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210622685.8A CN115000752B (en) | 2022-06-02 | 2022-06-02 | High-voltage-resistant watertight cable connector with through compensation channel |
| PCT/CN2023/075428 WO2023231447A1 (en) | 2022-06-02 | 2023-02-10 | High pressure-resistant watertight cable connector having through compensation channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210622685.8A CN115000752B (en) | 2022-06-02 | 2022-06-02 | High-voltage-resistant watertight cable connector with through compensation channel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115000752A true CN115000752A (en) | 2022-09-02 |
| CN115000752B CN115000752B (en) | 2023-06-30 |
Family
ID=83031706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210622685.8A Active CN115000752B (en) | 2022-06-02 | 2022-06-02 | High-voltage-resistant watertight cable connector with through compensation channel |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115000752B (en) |
| WO (1) | WO2023231447A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023231447A1 (en) * | 2022-06-02 | 2023-12-07 | 中国船舶科学研究中心 | High pressure-resistant watertight cable connector having through compensation channel |
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| JPH09320680A (en) * | 1996-05-30 | 1997-12-12 | Japan Marine Sci & Technol Center | Connector for oil-filled submerged cable |
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| CN115000752B (en) * | 2022-06-02 | 2023-06-30 | 中国船舶科学研究中心 | High-voltage-resistant watertight cable connector with through compensation channel |
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- 2022-06-02 CN CN202210622685.8A patent/CN115000752B/en active Active
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| RU2162272C1 (en) * | 1999-05-31 | 2001-01-20 | Открытое акционерное общество "Борец" | Submersible oil-filled electric motor |
| US20060079107A1 (en) * | 2004-10-07 | 2006-04-13 | Ocean Works International, Inc. | Subsea gang connector system |
| CN104682081A (en) * | 2013-11-30 | 2015-06-03 | 中国科学院沈阳自动化研究所 | Watertight coaxial connector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023231447A1 (en) * | 2022-06-02 | 2023-12-07 | 中国船舶科学研究中心 | High pressure-resistant watertight cable connector having through compensation channel |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023231447A1 (en) | 2023-12-07 |
| CN115000752B (en) | 2023-06-30 |
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