CN115000752B - High-voltage-resistant watertight cable connector with through compensation channel - Google Patents
High-voltage-resistant watertight cable connector with through compensation channel Download PDFInfo
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- CN115000752B CN115000752B CN202210622685.8A CN202210622685A CN115000752B CN 115000752 B CN115000752 B CN 115000752B CN 202210622685 A CN202210622685 A CN 202210622685A CN 115000752 B CN115000752 B CN 115000752B
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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 compensation channel, which comprises a socket assembly and a plug assembly which are oppositely inserted and matched, wherein a socket valve is arranged on the axial through socket assembly, and a plug valve is arranged on the axial through plug assembly; when the male pin in the socket assembly and the female pin in the plug assembly are plugged in place, the opposite end parts of the socket assembly and the plug assembly are provided with a space, meanwhile, the socket valve and the plug valve are all blocked and are converted into a communication state, liquid flows axially at the axial direction and the space position of the socket assembly, the plug assembly is axially circulated, a through-type compensation channel is formed after the socket assembly is plugged through the state switching of the valve, and the electric power transmission of the underwater ultrahigh-pressure environment is greatly assisted by the principle of water-oil pressure compensation, so that the safety and the reliability are high.
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 compensation channel.
Background
Various underwater equipment is required to provide guarantee in the underwater activities of various marine operation platforms such as a large number of marine oil and gas production, deep sea mining equipment, underwater construction machinery, manned submersible, unmanned submersible and the like, and the equipment generally realizes energy supply under the hydraulic environment of the equipment through a watertight cable connector capable of bearing pressure.
In the prior art, the watertight cable connector used in the mainstream is a rubber watertight cable connector, the watertight connection of the plug metal piece and the rubber tail cable is realized by adopting a rubber vulcanization technology, the watertight cable connector has a certain limit on the water pressure born by the underwater environment, and due to the immaturity of the domestic rubber vulcanization technology and the limitation of the technology, the watertight cable connector has poor reliability, especially faces deep sea, the bearing sea water pressure is higher, and the failure risk is higher. If faults such as short circuit, open circuit, leakage and the like occur during underwater operation, the underwater equipment is greatly damaged, and great hidden trouble is brought to the safety of personnel and equipment.
The watertight cable connector used in the existing underwater equipment field is seriously dependent on import, and is especially applied to various deep sea equipment with water depths of thousands of meters or even tens of thousands of meters, the watertight cable connector is monopoly by imported products, the price is extremely high, and the price of a single piece is thousands to tens of thousands of meters; even so, the reliability of the water leakage protection device is still lower in an ultra-high water pressure environment, and water leakage accidents often occur.
Disclosure of Invention
The applicant provides a high-voltage-resistant watertight cable connector with a through compensation channel, which has reasonable structure, so that the power transmission in an underwater ultrahigh-voltage environment is greatly assisted, and the safety and reliability are high.
The technical scheme adopted by the invention is as follows:
a high-pressure-resistant watertight cable connector with a through compensation channel comprises a socket component and a plug component which are oppositely inserted and matched, wherein a socket valve is arranged on the socket component in an axial penetrating manner, and a plug valve is arranged on the plug component in the axial penetrating manner; when the male pin in the socket component and the female pin in the plug component are plugged in place, a space exists between the opposite ends of the socket component and the plug component, and meanwhile, the socket valve and the plug valve are switched to a communication state by blocking, so that liquid flows axially in the socket component, at the space and axially in the plug component.
As a further improvement of the above technical scheme:
the socket assembly is arranged in the middle of the inner hole of the socket shell which is axially penetrated, the plug assembly is arranged at the end part of the inner hole of the plug shell which is axially penetrated, and the end part of the plug shell extends into the inner hole of the socket shell during the plug-in; the outer wall surface of the socket assembly is jointed with the inner wall surface of the socket shell and is provided with a second sealing element in a joint pressing mode, the outer wall surface of the plug assembly is jointed with the inner wall surface of the plug shell and is provided with a fourth sealing element in a joint pressing mode, and the outer wall surface of the plug shell is jointed with the inner wall surface of the socket shell and is provided with a third sealing element in a joint pressing mode.
The socket assembly and the plug assembly are both of a circumferential rotary structure, a limiting structure for preventing circumferential relative rotation is arranged between the socket assembly and the socket shell, and another group of limiting structures with the same structure for preventing circumferential relative rotation are arranged between the plug assembly and the plug shell.
The end part of the socket component, which is 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 check ring for preventing the plug assembly from falling off is embedded at the end part of the inner hole of the plug shell, and the other end of the plug assembly is provided with another group of step limiting structures matched with the plug shell.
The outer wall surface of the plug shell is provided with a protruding block extending outwards along the circumference, and when the end part of the plug shell extends into the inner hole of the socket shell to be inserted in place, the protruding block is gradually close to and 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, which is positioned outside the end head of the socket shell, and a gap exists between the threaded sleeve check ring and the protruding block; the socket also comprises a rotary screw sleeve, one end of the rotary screw sleeve is contracted inwards and is embedded between the screw sleeve retainer ring and the convex block, and the other end of the rotary screw sleeve is sleeved on the outer wall surface of the socket shell and is assembled by threads.
The outer wall surface of the end part of the socket shell, which is 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 component, which is away from the socket shell, is sheathed with a hose, and the end part of the hose is fastened relative to the plug component through a hoop.
The end part of the plug assembly, which is sleeved with the hose, is concaved inwards along the circumferential direction to form an inner concave part, an inclined surface structure is arranged between the edge of one end of the inner concave part and the outer wall surface of the plug assembly for transition, and a circumferential convex flange is formed between the edge of the other end of the inner concave part and the end head of the plug assembly; the flange is located 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 male pins which are parallel to each other are inserted through the socket core along the circumferential direction, and socket valves are also arranged 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 parallel female pins are inserted into the plug core along the circumferential direction, and plug valves are arranged on the plug core positioned on the inner sides of the female pins in a penetrating manner;
the male pins and the female pins are inserted in a one-to-one correspondence manner.
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 the plug-in mounting, the socket valve is subjected to extrusion force application of the end face of the plug assembly to switch the state, and the plug valve is subjected to extrusion force application of the end face of the socket assembly to switch the state.
The socket valve and the plug valve have the same structure, and the specific structure of the socket valve is as follows: the plug comprises a valve rod which is movably inserted in a socket assembly along the axial direction, one end of the valve rod extends out of the socket assembly and faces to a plug assembly, the other end of the valve rod is contracted in the diameter direction to form a thin rod part, and the thin rod part is positioned in the socket assembly and is fixedly connected with a blocking head at the end part; an elastic piece is sleeved on the thin rod part, one end of the elastic piece is attached to the step part of the valve rod contracted into the thin rod part, and the other end of the elastic piece 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 face of the blocking head along the circumference; a gap exists between the circumferential direction of the blocking head and the wall of the socket assembly, the end part of the valve rod is forced by the plug assembly to move towards the interior of the socket assembly, and the valve seat is separated from the blocking head.
The beneficial effects of the invention are as follows:
the invention has compact and reasonable structure and convenient operation, forms a through type compensation channel after the connector is inserted 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 filling equipment, avoids the risk of bearing failure, and can be applied to the ultra-high water pressure environment;
the invention adopts the double-valve structural design, realizes the automatic opening of the compensation channel during the plugging and assembling of the watertight cable connector and the automatic closing function of the compensation channel during the pulling and separating, 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 view of the present invention.
Fig. 2 is a partial enlarged view at a in fig. 1.
Fig. 3 is a partial enlarged view at B in fig. 1.
Fig. 4 is a schematic structural view of a socket housing and a socket assembly according to the present invention.
Fig. 5 is a schematic structural view of the plug housing and plug assembly of the present invention.
Fig. 6 is a schematic structural view (blocking state) 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 at D in fig. 8.
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 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 rib;
441. a valve stem; 442. an elastic member; 443. a thin rod portion; 444. a valve seat; 445. a blocking head; 4441. an inner step structure;
5. a plug assembly; 51. a plug retainer ring; 52. a third sealing member; 53. a plug core; 54. a fourth sealing member; 55. a female pin; 56. a plug valve;
6. rotating the screw sleeve; 61. a thread sleeve retainer ring; 62. a convex edge;
7. a plug housing; 71. a bump; 72. a retainer ring groove; 73. an inclined plane structure; 74. an inner concave portion; 75. a flange;
8. a hose; 81. a hoop;
k. spacing.
Detailed Description
The following describes specific embodiments of the present invention with reference to the drawings.
As shown in fig. 1 and 2, a high-voltage-resistant watertight cable connector with a through compensation channel of the present embodiment includes a socket assembly 4 and a plug assembly 5 which are inserted and matched in opposite directions, a socket valve 44 is installed to axially penetrate the socket assembly 4, and a plug valve 56 is installed to axially penetrate the plug assembly 5; when the male pin 41 of the socket assembly 4 and the female pin 55 of the plug assembly 5 are plugged in place, a gap k exists between the opposite ends of the socket assembly 4 and the plug assembly 5, and meanwhile, the socket valve 44 and the plug valve 56 are switched to be in a communication state by blocking, so that liquid axially flows in the axial direction of the socket assembly 4, at the gap k and in the axial direction of the plug assembly 5.
In this embodiment, through-type compensation channels are formed after the connectors are inserted through state switching of the valves, and then, by combining with the principle of hydraulic pressure compensation, the power transmission in the underwater ultrahigh-pressure environment is ensured, so that the device is particularly suitable for use in oil-filled underwater equipment.
The socket component 4 is arranged in the middle of the inner hole of the socket shell 3 which is axially penetrated, the plug component 5 is arranged at the end part of the inner hole of the plug shell 7 which is axially penetrated, and the end part of the plug shell 7 extends into the inner hole of the socket shell 3 during the insertion, so that the plug component 5 gradually approaches the socket component 4 until the female pin 55 and the male pin 41 are correspondingly inserted in place; the outer wall surface of the socket assembly 4 is jointed with the inner wall surface of the socket shell 3 and is provided with the second sealing element 43 in a pressing mode, the outer wall surface of the plug assembly 5 is jointed with the inner wall surface of the plug shell 7 and is provided with the fourth sealing element 54 in a pressing mode, the outer wall surface of the plug shell 7 is jointed with the inner wall surface of the socket shell 3 and is provided with the third sealing element 52 in a pressing mode, and the arrangement of the sealing elements between the inner wall and the outer wall enables the formed through type compensation channel to be relatively airtight and reliable, and reliability in the use 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 a relatively airtight internal circulation space can be formed between the end of the socket assembly 4 and the end of the plug assembly 5 by the distance k after the socket assembly is inserted in place, thereby assisting the formation of the through compensation channel.
The socket assembly 4 and the plug assembly 5 are both of a circumferential rotation structure, a limiting structure for preventing circumferential relative rotation is jointly arranged between the socket assembly 4 and the socket shell 3, and another group of limiting structures with the same structure for preventing circumferential relative rotation are jointly arranged between the plug assembly 5 and the plug shell 7.
In this embodiment, the structures of the limiting structures between the socket assembly 4 and the socket housing 3 and between the plug assembly 5 and the plug housing 7 for preventing the circumferential relative rotation are the same, taking the limiting structure between the socket assembly 4 and the socket housing 3 as an example, the end of the circumferential wall surface of the socket core 42 of the socket assembly 4 is extended along the axial direction to form a rib 423, the inner wall surface of the socket housing 3 is provided with a groove corresponding to the rib 423, and the circumferential limitation after the assembly between the socket assembly 4 and the socket housing 3 is realized through the matching and insertion of the rib 423 and the groove, as shown in fig. 10 and 11.
In this embodiment, the socket assembly 4 and the plug assembly 5 are both configured in a circumferential rotary structure, such as a cylindrical structure, so as to facilitate reliable sealing when assembled with the corresponding socket housing 3 and plug housing 7; of course, the socket assembly 4 and the plug assembly 5 may also be provided with non-circumferential revolving structures, such as cylindrical structures with square or rectangular cross sections, which are adapted to be installed with the socket housing 3 and the plug housing 7 and are reliably sealed by the attached wall surfaces, so that the non-circumferential revolving structures are also convenient for guiding the insertion during installation, and can replace or even lift the setting of the limiting structures for preventing the circumferential relative rotation.
The end part of the socket assembly 4, which is away from the plug assembly 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 assembly 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 assembly 5 from falling out, and the other end of the plug assembly 5 is provided with another group of step limiting structures matched with the plug shell 7.
In this embodiment, 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 structures between the socket assembly 4 and the socket housing 3 are described as an example; as shown in fig. 10 and 11, the end portion of the socket core 42 in the socket assembly 4 is contracted in the diameter direction to form an outer stepped structure 422, an inner step matched with the outer stepped structure 422 is arranged in the inner hole of the socket housing 3, and when the socket assembly 4 is inserted into the inner step from the hole of the socket housing 3, the outer stepped structure 422 is gradually close to, contacted and attached to the inner step, and then is inserted into place, and then the socket retainer ring 45 is embedded in the hole of the socket housing 3 to prevent the socket assembly 4 from being separated, so that the insertion and 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 the relative rotation in the circumferential direction may be disposed on the outer step structure 422 and the corresponding inner step, so that the socket assembly 4 is limited in the axial insertion direction and the circumferential rotation direction when being inserted in place relative to the socket housing 3, so that the final insertion is reliable.
As shown in fig. 3, the outer wall surface of the plug housing 7 extends outwards along the circumference to form a protruding block 71, and when the end part of the plug housing 7 extends into the inner hole of the socket housing 3 to be inserted into place, the protruding block 71 gradually approaches and is attached to the end head of the socket housing 3; a threaded sleeve check ring 61 is embedded on the outer wall surface of the plug housing 7 positioned outside the end of the socket housing 3 along the circumferential direction, and a space exists between the threaded sleeve check ring 61 and the protruding block 71; the socket also comprises a rotary screw sleeve 6, one end of the rotary screw sleeve 6 is contracted inwards and is embedded between the screw sleeve retainer 61 and the convex block 71, and the other end of the rotary screw sleeve 6 is sleeved on the outer wall surface of the socket shell 3 and is assembled by threads.
In this embodiment, a retaining ring groove 72 is formed in the wall surface of the plug housing 7 located on the outer side of the side surface of the protrusion 71 away from the socket housing 3 along the circumferential direction, and the insert retaining ring 61 is fitted into the retaining ring groove 72 to form a stop for the end of the rotary insert 6.
In this embodiment, the sleeve retainer 61 is of a cylindrical structure, the inner wall of the sleeve retainer 61 is provided with a threaded structure and is spirally sleeved on the outer wall surface of the socket housing 3, the end portion of the sleeve retainer 61 is internally folded to form a convex edge 62, when the sleeve retainer 61 rotates onto the socket housing 3 along the threaded structure, the convex edge 62 is gradually close to and attached to the side surface of the protruding block 71 to prevent the sleeve retainer 61 from being further screwed in, and the sleeve retainer 61 is arranged outside the side surface of the convex edge 62 far away from the protruding block 71 to prevent the sleeve retainer 61 from being reversely screwed out, so that the sleeve retainer 61 is axially limited in two directions, and the axial stability and reliability of the plug housing 7 after being inserted into the socket housing 3 are ensured through reliable installation of the sleeve retainer 61.
The outer wall surface of the end part of the socket shell 3, which is away from the plug assembly 5, is assembled on the wall surface of the oil filling equipment 1 through a threaded structure, and a first sealing element 11 is also pressed between the socket shell 3 and the outer wall surface of the oil filling equipment 1 so as to assist in guaranteeing the isolation between the inside and the outside; the end of the plug assembly 5 facing away from the socket housing 3 is fitted with a hose 8, the end of the hose 8 being fastened by means of a collar 81 relative to the plug assembly 5.
As shown in fig. 5, the end part of the plug assembly 5, which is sleeved with the hose 8, is concavely provided with an inner concave part 74 along the circumferential direction, the edge of one end of the inner concave part 74 is in transition with the outer wall surface of the plug assembly 5, an inclined surface structure 73 is arranged between the edge of the other end of the inner concave part 74 and the end head of the plug assembly 5, and a circumferential 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 flange 75 is positioned in the hose 8, and the anchor ear 81 is sleeved at the concave part 74 of the plug assembly 5; the hose 8 sleeved at the end part of the plug assembly 5 is internally supported and externally tightened through the flange 75 and the anchor ear 81, so that the hose 8 is stably and reliably attached to the outer wall surface of the plug assembly 5, and the hose 8 is attached in a power-assisted manner through deformation of the hose at the sleeved part, so that the tightness of the joint is ensured.
As shown in fig. 4, the socket assembly 4 includes a socket core 42, a plurality of male pins 41 parallel to each other are inserted through the socket core 42 along the circumferential direction, and a socket valve 44 is also inserted through the socket core 42 located 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 into the plug core 53 along the circumferential direction, and a plug valve 56 is also arranged on the plug core 53 positioned on the inner side of the female pins 55 in a penetrating way;
the male pins 41 are inserted in one-to-one correspondence with the female pins 55.
In the embodiment, the socket core 42 forms a matrix for installing the male pin 41 and the socket valve 44, and is matched with the socket shell 3 in a plug-in manner through the arrangement of the appearance of the socket core 42; the plug core 53 forms a base body for installing the female pin 55 and the plug valve 56, and is matched with the plug housing 7 in a plug-in manner through the arrangement of the appearance of the plug core 53.
In this embodiment, in order to install the male pin 41 and the socket valve 44 in a penetrating manner, the socket core 42 is provided with holes penetrating in the axial direction, for example, through holes 421 for installing the socket valve 44, the male pin 41 is fixedly inserted into the socket core 42 while two ends of the male pin extend out of corresponding holes, one end of the male pin 41 is used for being inserted into the female pin 55 after protruding, and the other end of the male pin is used for being connected with the first cable 21 to be connected; the arrangement of the through hole 421 reliably ensures the axial penetration of the socket assembly 4 when the socket valve 44 is in a communicated state while realizing the installation of the socket valve 44;
similarly, in order to install the female pin 55 and the plug valve 56 in a penetrating manner, the plug core 53 is also provided with a similar hole penetrating in an axial direction, 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; thus, after the male pin 41 and the female pin 55 are inserted, the electrical connection between the first cable 21 and the second cable 22 is achieved.
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 the plugging, the socket valve 44 is subjected to extrusion force by the end face of the plug assembly 5 to switch the state, and the plug valve 56 is subjected to extrusion force by the end face of the socket assembly 4 to switch the state; by the staggered arrangement of the socket valve 44 and the plug valve 56, the reliability and stability of the corresponding valve state switching during the plugging process are ensured.
In this embodiment, the number of the socket valves 44 and the plug valves 56 may be one set, or may be more than two sets according to practical 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 and pressed with the plug assembly 5, and a circulation gap exists between the outer end of the valve rod 441 and the orifice of the through hole 421 of the socket assembly 4; similarly, in the circulation state, there is also a circulation gap between the outer end of the stem 441 of the plug valve 56 and the orifice of the through hole 421 of the plug assembly 5.
The structure of the socket valve 44 is the same as that of the plug valve 56, and as shown in fig. 6 and 7, the specific structure of the socket valve 44 is: the plug 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 the plug assembly 5, the other end of the valve rod 441 is contracted in the diameter direction to form a thin rod part 443, and the thin rod part 443 is positioned in the socket assembly 4 and is fixedly connected with a stop 445 at the end part; an elastic element 442 is sleeved on the thin rod part 443, 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 wall of the socket assembly 4 outside the circumference of the valve rod 441, and the end part of the valve seat 444 positioned outside the thin rod 443 is attached to the side surface of the baffle 445 along the circumference; a gap exists between the circumferential direction of the baffle head 445 and the wall of the socket assembly 4, the end of the valve rod 441 is forced by the plug assembly 5 to move towards the inside of the socket assembly 4, and the valve seat 444 is separated from the baffle head 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 position of the baffle head 445.
In this embodiment, the valve seat 444 is of an axially hollow cylindrical structure, and is internally fitted in the through hole 421 of the socket core 42, one end of the valve seat is flush with the orifice, and the other end of the valve seat is concavely contracted between the stop 445 and the elastic member 442, so as to realize contact force application of the elastic member 442 or attachment of the elastic member with the stop 445, and the valve seat 444 is convenient and reliable to install, and can assist in ensuring 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 concavely contracted forms a conical surface structure facing the stopper 445, so as to reduce the contact area while ensuring the circumferential contact between the tip and the stopper 445, thereby improving the reliability and flexibility of state switching; the inner wall surface of the end portion of the valve seat 444, which is concavely contracted, forms an inner step structure 4441 attached to the end portion of the elastic member 442, so as to ensure the stable and balanced compression of the elastic member 442 when the valve rod 441 is retracted;
in this embodiment, both ends of the valve stem 441 penetrate the valve seat 444, and a gap is formed between the outer wall surface of the valve stem 441 and the inner wall surface of the valve seat 444 in order to ensure the penetration in the communication state.
In this embodiment, the outer end of the valve rod 441 may engage with a larger diameter force-bearing end block, and the force-bearing end block is driven by the force along the axial direction of the valve rod 441 to retract toward the socket core 42, where the width dimension of the force-bearing end block along the retracting direction is smaller than the distance k between the socket assembly 4 and the plug assembly 5 in the flowing state.
As shown in fig. 10 and 11, 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 socket valves 44 are installed on the socket cores 42 inside the six groups of male pins 41 in a penetrating manner; one end of the socket core 42 is concaved inwards along the circumference to form an outer step structure 422, and a convex rib 423 is radially outwards extended at one part of the circumference of the outer step structure 422, when the socket assembly 4 and the socket housing 3 are mounted, the outer step structure 422 is arranged to form a limit of the mounting direction, and the convex rib 423 realizes the limit of relative rotation along the circumference, so that the mounting reliability between the socket assembly 4 and the socket housing 3 is good.
In the embodiment, the through type compensation channel is adopted to realize the internal and external pressure balance of the watertight cable connector and the underwater oil filling equipment, avoid the risk of bearing failure, and can be applied to an ultra-high water pressure environment;
in this embodiment, adopt the structural design of bivalve, realized the automatic opening of compensation passageway when watertight cable connector plug-in assembly and pulled out the automatic closing function of compensation passageway when the separation, on effectively guaranteeing the reliable use under the high water pressure basis, effectively avoid the seepage of fluid.
The practical use mode of the embodiment is as follows:
a first sealing element 11 is embedded in the end head of the threaded structure of the socket shell 3 provided with the socket assembly 4, the tail end of a male pin 41 in the socket assembly 4 is connected with a first cable 21 of the oil filling equipment 1, the threaded structure of the socket shell 3 is spirally arranged on the wall surface of the oil filling equipment 1 until the end head of the socket shell 3 abuts against the outer wall surface of the oil filling equipment 1, and the first sealing element 11 is extruded;
the tail end of a female pin 55 in the plug assembly 5 is connected with a second cable 22 in a hose 8, the hose 8 is sleeved at the end part of a plug shell 7 provided with the plug assembly 5, and the hose 8 is fixed through a hoop 81;
a third sealing element 52 is arranged on the inner wall surface of the socket shell 3, and the plug shell 7 is extended into the socket shell 3 until the male pin 41 and the female pin 55 are correspondingly inserted;
the rotary screw sleeve 6 is spirally locked from the end of the plug housing 7 to the end of the socket housing 3 until the convex edge 62 of the rotary screw sleeve 6 abuts against the convex block 71 of the plug housing 7, the screw sleeve check ring 61 is embedded on the plug housing 7 at the other side of the convex edge 62 to limit, at this time, the male pin 41 and the female pin 55 are inserted in place, the ends of the valve rods 441 of the socket valve 44 and the plug valve 56 are retracted by extrusion force, the blocking state is converted into the communicating state, and the elastic piece 442 is compressed, so that a through oil path channel is formed inside the hose 8, between the plug valve 56, the interval k between the plug assembly 5 and the socket assembly 4, and between the socket valve 44 and the oil filling equipment 1.
The invention is based on state switching of the valve, forms a through compensation channel in the water-tight connector after being inserted, greatly assists in ensuring power transmission in an underwater ultrahigh-pressure environment, has high safety and reliability, and is particularly suitable for use of oil-filled underwater equipment.
The above description is intended to illustrate the invention and not to limit it, the scope of which is defined by the claims, and any modifications can be made within the scope of the invention.
Claims (5)
1. A high pressure resistant type watertight cable connector with through compensation passageway, its characterized in that: the plug assembly comprises a socket assembly (4) and a plug assembly (5) which are oppositely inserted and matched, wherein a socket valve (44) is arranged to axially penetrate through the socket assembly (4), and a plug valve (56) is arranged to axially penetrate through the plug assembly (5); when the male pin (41) in the socket assembly (4) and the female pin (55) in the plug assembly (5) are inserted in place, a space (k) exists between the opposite ends of the socket assembly (4) and the plug assembly (5), and meanwhile, the socket valve (44) and the plug valve (56) are all blocked and converted into a communication state, and liquid axially circulates at the axial direction of the socket assembly (4) and the space (k) and the axial direction of the plug assembly (5);
the socket assembly (4) is arranged in the middle of an inner hole of the socket shell (3) which is axially penetrated, the plug assembly (5) is arranged at the end part of an inner hole of the plug shell (7) which is axially penetrated, and the end part of the plug shell (7) extends into the inner hole of the socket shell (3) during the plug-in process; the outer wall surface of the socket assembly (4) is jointed with the inner wall surface of the socket shell (3) and is provided with a second sealing element (43) in a joint pressing mode, the outer wall surface of the plug assembly (5) is jointed with the inner wall surface of the plug shell (7) and is provided with a fourth sealing element (54) in a joint pressing mode, and the outer wall surface of the plug shell (7) is jointed with the inner wall surface of the socket shell (3) and is provided with a third sealing element (52) in a joint pressing mode;
the end part of the socket component (4) deviating 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); a plug retainer ring (51) for preventing the plug assembly (5) from falling off is embedded at the end part of the inner hole of the plug shell (7), and the other end of the plug assembly (5) is provided with another group of step limiting structures matched with the plug shell (7);
the socket assembly (4) comprises a socket core (42), a plurality of male pins (41) which are parallel to each other are inserted through the socket core (42) along the circumferential direction, and a socket valve (44) is also arranged on the socket core (42) positioned at the inner side of the male pins (41) in a penetrating way;
the plug assembly (5) comprises a plug core (53), a plurality of female pins (55) which are parallel to each other are inserted into the plug core (53) along the circumferential direction, and a plug valve (56) is arranged on the plug core (53) positioned at the inner side of the female pins (55) in a penetrating way;
the male pins (41) are inserted with the female pins (55) in a one-to-one correspondence manner;
the axial direction of the socket valve (44) and the axial direction of the plug valve (56) are arranged in parallel and staggered; when the socket is plugged, the socket valve (44) is subjected to extrusion force application by the end face of the plug assembly (5) to switch the state, and the plug valve (56) is subjected to extrusion force application by the end face of the socket assembly (4) to switch the state;
the socket valve (44) has the same structure as the plug valve (56), and the specific structure of the socket valve (44) is as follows: the plug comprises a valve rod (441) which is movably inserted into a socket assembly (4) along the axial direction, one end of the valve rod (441) extends out of the socket assembly (4) and faces to a plug assembly (5), the other end of the valve rod (441) is contracted in the diameter direction to form a thin rod part (443), and the thin rod part (443) is positioned in the socket assembly (4) and fixedly connected with a blocking head (445) at the end part; an elastic piece (442) is sleeved on the thin rod part (443), one end of the elastic piece (442) is attached to the step part of the valve rod (441) contracted into the thin rod part (443), and the other end of the elastic piece (442) is attached to the valve seat (444); the valve seat (444) is fixed on the wall of the socket assembly (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 baffle head (445) along the circumference; a gap exists between the circumferential direction of the baffle head (445) and the hole wall of the socket assembly (4), the end part of the valve rod (441) is forced by the plug assembly (5) to move towards the inside of the socket assembly (4), and the valve seat (444) is separated from the baffle head (445).
2. A high pressure resistant watertight cable connector having a through compensation passageway according to claim 1 wherein: the socket assembly (4) and the plug assembly (5) are of a circumferential rotation structure, a limiting structure for preventing circumferential relative rotation is arranged between the socket assembly (4) and the socket shell (3), and another group of limiting structures with the same structure for preventing circumferential relative rotation are arranged between the plug assembly (5) and the plug shell (7).
3. A high pressure resistant watertight cable connector having a through compensation passageway according to claim 1 wherein: the outer wall surface of the plug housing (7) is outwards extended with a protruding block (71) along the circumference, and when the end part of the plug housing (7) extends into an inner hole of the socket housing (3) to be inserted in place, the protruding block (71) is gradually close to and attached to the end head of the socket housing (3); a threaded sleeve check ring (61) is embedded on the outer wall surface of the plug housing (7) positioned outside the end of the socket housing (3) along the circumferential direction, and a space exists between the threaded sleeve check ring (61) and the protruding block (71); the socket also comprises a rotary screw sleeve (6), one end of the rotary screw sleeve (6) is contracted inwards and is embedded between the screw sleeve retainer ring (61) and the convex block (71), and the other end of the rotary screw sleeve (6) is sleeved on the outer wall surface of the socket shell (3) and is assembled by threads.
4. A high pressure resistant watertight cable connector having a through compensation passageway according to claim 1 wherein: the outer wall surface of the end part of the socket shell (3) which is away from the plug assembly (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 pressed between the socket shell (3) and the outer wall surface of the oil filling equipment (1); the end part of the plug component (5) which is away 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 component (5) through a hoop (81).
5. A high pressure resistant watertight cable connector having a through compensation passageway according to claim 4 wherein: an inner concave part (74) is formed at the end part of the hose (8) in a circumferential inward concave manner, an inclined surface 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 circumferential 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 flange (75) is positioned inside the hose (8), and the anchor ear (81) is sleeved at the concave part (74) of the plug assembly (5).
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 CN115000752A (en) | 2022-09-02 |
| CN115000752B true CN115000752B (en) | 2023-06-30 |
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| 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) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9388643B1 (en) * | 2015-01-12 | 2016-07-12 | Teledyne Instruments, Inc. | Harsh environment pressure compensator for inline cable termination |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09320680A (en) * | 1996-05-30 | 1997-12-12 | Japan Marine Sci & Technol Center | Connector for oil-filled submerged cable |
| RU2162272C1 (en) * | 1999-05-31 | 2001-01-20 | Открытое акционерное общество "Борец" | Submersible oil-filled electric motor |
| US7172447B2 (en) * | 2004-10-07 | 2007-02-06 | Oceanworks International, Inc. | Subsea gang connector system |
| CN102593640B (en) * | 2012-02-20 | 2013-12-04 | 宝鸡石油机械有限责任公司 | Underwater cable connector |
| CN104682081B (en) * | 2013-11-30 | 2017-01-18 | 中国科学院沈阳自动化研究所 | Watertight coaxial connector |
| CN105655800B (en) * | 2014-11-10 | 2018-06-19 | 中国科学院沈阳自动化研究所 | A kind of deep-sea oil-filled cable fast junction apparatus |
| CN206774754U (en) * | 2017-03-22 | 2017-12-19 | 山东龙立电子有限公司 | The oil-filled jack that can be plugged under water |
| CN110865439A (en) * | 2019-11-28 | 2020-03-06 | 中天海洋系统有限公司 | Split type watertight optical connector |
| CN111463624B (en) * | 2020-04-02 | 2021-03-09 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Underwater wet-type electric connector capable of being plugged and unplugged with electricity |
| CN212659735U (en) * | 2020-07-27 | 2021-03-05 | 成都宏明电子股份有限公司 | Stay cord electric connector that drops based on steel ball locking structure |
| CN112600029B (en) * | 2020-12-07 | 2021-10-29 | 浙江大学 | Underwater wet-pull-plug pressure balance electric connector |
| 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 |
-
2022
- 2022-06-02 CN CN202210622685.8A patent/CN115000752B/en active Active
-
2023
- 2023-02-10 WO PCT/CN2023/075428 patent/WO2023231447A1/en unknown
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9388643B1 (en) * | 2015-01-12 | 2016-07-12 | Teledyne Instruments, Inc. | Harsh environment pressure compensator for inline cable termination |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023231447A1 (en) | 2023-12-07 |
| CN115000752A (en) | 2022-09-02 |
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