WO2022241986A1 - 一种快速自适应式旋转插拔水下承力连接器 - Google Patents

一种快速自适应式旋转插拔水下承力连接器 Download PDF

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Publication number
WO2022241986A1
WO2022241986A1 PCT/CN2021/119355 CN2021119355W WO2022241986A1 WO 2022241986 A1 WO2022241986 A1 WO 2022241986A1 CN 2021119355 W CN2021119355 W CN 2021119355W WO 2022241986 A1 WO2022241986 A1 WO 2022241986A1
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WIPO (PCT)
Prior art keywords
plug
slider
push
block
shell
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Ceased
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PCT/CN2021/119355
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English (en)
French (fr)
Inventor
张锋
宋开臣
吴勇
宁扬
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Zhejiang University
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Zhejiang University
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Priority to US17/718,343 priority Critical patent/US12113313B2/en
Publication of WO2022241986A1 publication Critical patent/WO2022241986A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627—Snap or like fastening
    • 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
    • H01R13/502—Bases; Cases composed of different pieces
    • H01R13/512—Bases; Cases composed of different pieces assembled by screw or screws
    • 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
    • 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
    • H01R13/5205—Sealing means between cable and housing, e.g. grommet
    • 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
    • H01R13/521—Sealing between contact members and housing, e.g. sealing insert
    • 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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/621—Bolt, set screw or screw clamp
    • H01R13/6215—Bolt, set screw or screw clamp using one or more bolts
    • 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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/622—Screw-ring or screw-casing
    • 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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • 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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
    • 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
    • H01R13/64—Means for preventing incorrect coupling
    • H01R13/645—Means for preventing incorrect coupling by exchangeable elements on case or base
    • H01R13/6456—Means for preventing incorrect coupling by exchangeable elements on case or base comprising keying elements at different positions along the periphery of the connector
    • 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
    • H01R24/005—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure requiring successive relative motions to complete the coupling, e.g. bayonet type
    • 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
    • H01R24/20—Coupling parts carrying sockets, clips or analogous contacts and secured only to wire or cable
    • 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
    • H01R24/28—Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable

Definitions

  • the invention belongs to the technical field of underwater connectors, and in particular relates to a fast self-adaptive rotary plug-in underwater force-bearing connector.
  • the important thing is that the underwater connector can work reliably and normally under the condition of high pulling force (such as 10 tons of pulling force).
  • the matching methods of underwater connectors generally include threaded connection, bayonet connection, in-line connection, push-pull connection, etc.
  • the in-line connection is a common structure for self-locking underwater connectors.
  • the mating action is simple and fast. It only needs axial advance and retreat operations, and it can be automatically locked when mated in place. Structure, so the structure can not withstand large axial tension.
  • the threaded connection method commonly used in underwater connectors although the connection is reliable and has excellent tensile properties, the structure requires a rotating operation, and a certain torque needs to be applied when the connection is in place, so self-locking cannot be achieved.
  • the existing load-bearing underwater connector uses a steel wire load-bearing rope instead of an inner cable to bear the tension (CN110299646A, a load-bearing watertight connector), which only emphasizes the load-bearing connection between the cable and the connector, and does not mention the connector
  • the load-bearing performance and effect, and its core is to protect the inner cable through the steel wire rope, rather than a connector that can withstand a large tensile force (such as 10 tons).
  • the purpose of the present invention is to add a tensile structure on the basis of the existing in-line connection structure, improve the axial tensile performance of the structure and ensure reliability under the premise of realizing self-locking.
  • the present invention adopts following technical scheme to realize:
  • a fast self-adaptive rotary plug-in underwater load-bearing connector including a plug part and a socket part;
  • the plug part includes a plug housing, pins located inside the plug housing, and a push-pull sleeve, a rotating sleeve, a front retaining ring, a ratchet lock nut and a rear retaining ring located outside the plug housing; one end of the plug housing is provided with Submarine cable A; the plug housing is evenly provided with slider mounting holes radially for mounting the slider, and the slider can move radially along the slider mounting holes; the inner wall of the plug housing is provided with a A set of unequal-width keys for guiding the socket part, the keys of the unequal-width key set are arranged between the sliders; a hoop installation structure A is provided on the plug shell, and the hoop installation structure A is provided on both sides There is a load-bearing boss A; the plug shell is also provided with a shell pin hole A and thread A for connecting external equipment; the plug shell is provided with a sealing ring groove A, and the sealing ring groove A (installation waterproof) sealing ring)
  • the slider pin groove cooperates with the slider pin to realize the radial movement of the slider by rotating the rotating sleeve, thereby realizing the locking and unlocking of the plug part and the socket part;
  • the rear retaining ring groove, the rear retaining ring is used to prevent the ratchet lock nut from slipping out;
  • the plug housing is also provided with a front retaining ring groove for installing the front retaining ring, and the front retaining ring is used to prevent rotation cover slide out;
  • the socket part includes a socket shell and a jack provided in the socket shell; the pins and the jack are matched to connect the plug part and the socket part; one end of the socket shell is provided with a sea cable B, and the sea cable B and submarine cable A are arranged coaxially; the socket shell is provided with hoop installation structure B, and both sides of the hoop installation structure B are provided with load-bearing bosses B; the socket shell is provided with sliding block matching slider groove, and the flared guide keyway group matched with the unequal width key set, the insertion end of the bell mouth guide keyway set is trumpet-shaped, which is convenient for the unequal width key set to be able to move smoothly within a certain angle range.
  • the socket shell is also provided with a sand-proof sealing ring groove, which is used to install the sealing ring to prevent sand;
  • the socket shell is also provided with shell pins for connecting external devices Hole B and thread C;
  • the socket shell is provided with a sealing ring groove B, and a sealing ring is installed in the sealing ring groove B to seal between the external device and the socket shell.
  • the hoop installation structures A and B are used for hoop installation.
  • the set of unequal-width keys includes at least two keys with unequal widths, and the keys are used to provide a guide for inserting the plug part into the socket part.
  • one end of the block is provided with a clamping block, and the other end is provided with a spring mounting block, and the block is provided with a threaded pin matching groove used in conjunction with the threaded pin, and the block is also provided with
  • the tool hole of the block, the push-pull sleeve is provided with a tool hole of the push-pull sleeve, and the tool is inserted into the tool hole of the block and the tool hole of the push-pull sleeve to move the block.
  • one side of the ratchet lock nut is provided with ratchet teeth, which are used in conjunction with the block;
  • the interior of the ratchet lock nut is divided into two parts; one part is provided with ratchet threads, and the plug shell is provided with There is thread B, and the ratchet thread cooperates with thread B to make the ratchet lock nut press the push-pull sleeve;
  • the other part is provided with a smooth surface, the inner diameter of which is smaller than the inner diameter of the ratchet thread, so as to avoid the ratchet thread and the plug shell from contacting and causing abrasion;
  • the outer surface of the ratchet lock nut is provided with a lock nut tool hole for inserting a tool to lock the ratchet lock nut;
  • the outer surface of the ratchet lock nut is designed as a knurled surface for increasing friction Easy to assemble and disassemble.
  • the slider pin groove is an arc whose radius gradually increases with the angle; the outer surface of the rotating sleeve is provided with a tool hole for inserting a tool to realize the rotation of the rotating sleeve.
  • the inside of the push-pull sleeve is provided with a guide keyway for the push-pull sleeve
  • the outside of the plug housing is provided with a guide keyway for the plug housing.
  • a guide key is fixed on the guide keyway of the plug housing, and the guide keyway of the push-pull sleeve cooperates with the guide key to ensure that the push-pull sleeve
  • the uniqueness of insertion; the outer surface of the push-pull sleeve is designed with a surface knurling structure, which is used to increase friction and facilitate push-pull.
  • the device of the invention can work under the condition of high tension, and has high reliability.
  • the connector with the maximum outer diameter of 75 mm has been produced as a prototype and tested for tension, and the breaking strength is 37 tons.
  • the plug part and the socket part of the present invention are convenient and quick to be disassembled through insertion, and have the function of preventing sand; the outer surfaces of the ratchet lock nut and the push-pull sleeve are knurled structures for easy disassembly by hand; the nut can realize self-locking; the structure can It is connected with the bearing cable shell; the unequal width key set can ensure that the angle direction of the hoop installation structure of the plug part and the socket part is consistent.
  • Figure 1 is a partial cross-sectional structure diagram of the plug.
  • Fig. 2 is a partial sectional structural view of the socket.
  • Figure 3 is a structural diagram of the push-pull sleeve.
  • Figure 4 is a structural diagram of the rotary sleeve.
  • Figure 5 is a structural diagram of the retaining ring.
  • Fig. 6 is a structural diagram of the plug housing.
  • Figure 7 is a structural diagram of the slider.
  • Fig. 8 is a structural diagram of a key group of unequal widths.
  • Fig. 9 is a front view of the stopper.
  • Figure 10 is a structural diagram of the ratchet lock nut.
  • Fig. 11 is a schematic diagram of the structure of the socket housing.
  • Figures 14 and 15 are schematic diagrams of the disassembly process.
  • Figure 16 is a force diagram of a locked connector, where the slider is subjected to shear force.
  • a fast self-adaptive rotary plug-and-pull underwater load-bearing connector including a plug part (Fig. 1) and a socket part (Fig. 2); 13. And the push-pull sleeve 1, the rotating sleeve 2, the front retaining ring 3, the ratchet lock nut 11 and the rear retaining ring 12 arranged outside the plug shell 4; one end of the plug shell 4 is provided with a sea cable A15, and the sea cable A15 is installed on the plug housing 4 through the submarine cable installation structure A14 (which can provide a certain tensile strength), and is fixed through the submarine cable fixing structure A16 with sealing and waterproof function;
  • a partially guided unequal width key group 6 (Fig.
  • the keys of the unequal width key group 6 are arranged between the sliders 5 (Fig. 7);
  • the plug housing 4 is provided with a hoop installation Structure A45, both sides of the hoop installation structure A45 are provided with load-bearing bosses A44;
  • the plug housing 4 is also provided with housing pin holes A48 and threads A46 for connecting external equipment;
  • the plug housing 4 is provided with The sealing ring groove A47 is used to seal between the external device and the plug housing 4 by using the sealing ring groove A47;
  • the push-pull sleeve 1 is used to compress the slider 5 and the rotary sleeve 2;
  • the end of the push-pull sleeve 1 is provided
  • There is a block installation hole 22 for installing the block 8 the block 8 is used to block the ratchet lock nut 11 so as to prevent the threaded connection from loosening, the other end of the block 8 is provided with a spring 9, the spring 9 and the block
  • Described socket part comprises socket shell 17 (Fig. 11) and is located at the jack 18 in socket shell 17; Described pin 13 cooperates with jack 18 so as to connect plug part and socket part; Described socket shell 17 one end is provided with There is a submarine cable B20, said submarine cable B20 is fixed on the socket housing 17 through a submarine cable installation structure B19 (which can provide a certain tensile strength), and is fixed by a submarine cable fixing structure B21 with a sealing and waterproof function; said The submarine cable B20 and the submarine cable A16 are coaxially arranged; the socket shell 17 is provided with a hoop installation structure B53, and the two sides of the hoop installation structure B53 are provided with load-bearing bosses B52; There is a slider groove 50 matched with the slider 5, and a bell mouth guide keyway group 49 matched with the unequal width key group 6.
  • the insertion end of the bell mouth guide keyway group 49 is trumpet-shaped, which is convenient for unequal widths.
  • the key group 6 can be smoothly inserted within a certain angle range (even if there is a certain angle deviation, it can be smoothly inserted, so that the insertion process is convenient and fast), so that the pin 13 is inserted into the jack 18 (to ensure the embrace of the plug part and the socket part)
  • the angle direction of the hoop installation structure is the same);
  • the socket housing 17 is also provided with an anti-sand sealing ring groove 51, which is used to install the sealing ring so as to prevent sand;
  • the socket housing 17 is also provided with a shell for connecting external equipment Pin hole B54 and thread C56, socket housing 17 is provided with sealing ring groove B55, and sealing ring is installed at sealing ring groove B to seal between external equipment and socket housing 17.
  • the unequal-width key group 6 includes at least two keys with unequal widths (the key in this embodiment is a rectangular parallelepiped protrusion directly milled out with a milling cutter).
  • the end of each key of unequal width key group 6 is designed as chamfering structure, as the chamfering 28 of unequal width key group among Fig. 8, its function is to prevent from cutting hands;
  • one end of the block 8 is provided with a clamping block 29, and the other end is provided with a spring mounting block 30, and the block 8 is provided with a threaded pin matching groove 31 for use with the threaded pin 10.
  • the purpose is to ensure the stroke of the stopper 8 and prevent it from falling out of the stopper mounting hole 22) and the stopper tool hole 32 (for inserting tools to pull back the stopper 8 so as to disassemble the structure);
  • a push-pull sleeve tool hole 59 is provided, and a tool is inserted into the block tool hole 32 and the push-pull sleeve tool hole 59 to move the block 8 .
  • Described block 29 is designed as barb structure (as shown in Figure 9, the included angle of a corner of block 29 and horizontal plane and vertical plane is respectively a and b, and a is greater than 1 ° (preferably 5 °) and b is less than friction angle (preferably 5°), the purpose is to prevent the ratchet from being stuck due to friction and wear from causing the block 29 to not be sharp, and the barb structure ensures that the ratchet teeth can be reliably blocked even if there is wear and tear, increasing the reliability of the structure.
  • Block tool hole 32 cooperates with ratchet lock nut 11, spring 9, threaded pin 10, and ratchet lock nut 11 can be tightened, but can be blocked by the block 29 on the block 8 when unscrewing reversely, when dismounting
  • the block 8 is pressed into the push-pull sleeve 1, and the ratchet lock nut 11 is smoothly released.
  • one side of the ratchet lock nut 11 is provided with a ratchet tooth 35, which is used in conjunction with the block 29, and the shape of the ratchet tooth 35 cooperates with the shape of the barb of the block 29;
  • the inside of the ratchet lock nut 11 is divided into two parts; one part is provided with a ratchet thread 36, and the plug housing 4 is provided with a thread B42, and the ratchet thread 36 cooperates with the thread B42 to make the ratchet lock nut 11 compress the push-pull sleeve 1;
  • Another part is provided with smooth surface 37, and the inner diameter of smooth surface 37 is less than the inner diameter of ratchet thread 36, thereby avoids ratchet thread 36 and plug housing 4 contact and causes abrasion;
  • the outer surface of described ratchet locknut 11 is provided with locknut tool The hole 34 is used for inserting a tool to lock the ratchet lock nut 11; the outer surface of the ratchet lock nut
  • the slider pin groove 25 is an arc whose radius gradually increases with the angle; the outer diameter surface of the rotary sleeve 2 is provided with a tool hole 26 for inserting a tool to realize The rotation of rotating cover 2 (can use special tool to insert in tool hole 26 and assist to unscrew when hand screwing is difficult).
  • the slider pin groove 25 cooperates with the slider pin, and the slider 5 is moved radially by rotating the rotary sleeve 2, thereby realizing locking and releasing of the plug part and the socket part. Slider pin groove 25 among Fig.
  • the slider can have a 6mm radial stroke (36-30)) by rotation, but it is not necessarily 6 segments.
  • the number of arcs depends on the number of sliders, the size of the slider, the insertion depth of the slider and the bearing capacity. Because the tension process is the shearing process of the slider, the more sliders, the larger the slider, the deeper the slider is inserted, the greater the load-bearing capacity, the longer the arc, the smaller the friction angle, and the faster the slider is lifted. It is not easy to lock up.
  • the arc has been designed to be the longest without affecting the strength.
  • the inside of the push-pull sleeve 1 is provided with a push-pull sleeve guide keyway 23, the outside of the plug housing 4 is provided with a plug housing guide keyway 41, the guide keyway 41 of the plug housing is fixed with a guide key 7, and the push-pull sleeve guide keyway 23 and the guide key 7 Cooperate to ensure the uniqueness of the insertion of the push-pull sleeve 1, thereby ensuring that the angle of the push-pull sleeve 1 is consistent with the plug part and the socket part; the outer surface of the push-pull sleeve 1 is designed with a surface knurling structure 24, which is used to increase friction and facilitate pushing and pulling .
  • the material around the slider 5 on the plug housing 4 is thickened (the thickness of the material is greater than that of other parts, namely the reinforcement structure 40 in FIG. 6 ).
  • the plug housing 4 is evenly provided with slider installation holes 38 along the radial direction, which are used to bear force and provide guidance for the slider 5 , and the slider 5 can move radially along the slider installation holes 38 .
  • the effect of hoop installation structure A45 and hoop installation structure B53 is to install hoop, hoop bearing force, and the bearing boss A44 of certain thickness and bearing boss B52 can guarantee structural safety and reliability.
  • Thread A46 and shell pin hole A48 are used for cooperating installation with other structures (such as bearing cable shell).
  • the sealing ring groove A47 is installed with a waterproof sealing ring, and two sealing rings can be used to ensure reliable waterproofing.
  • Figures 12 and 13 show the mating process of the fast self-adaptive rotary plug-and-pull underwater load-bearing connector of the present invention:
  • Figures 14 and 15 show the disassembly process of the fast self-adaptive rotary plug-in underwater load-bearing connector of the present invention:
  • the structure of the present invention provides the locking function through multiple sliders and slider grooves, and the tensile force is mainly borne by the sliders, slider grooves, shell pin holes and threads at both ends of the connector, and through the sliders.
  • the size and quantity, the size and quantity of the housing pin holes, the major diameter of the thread and the length of the thread ensure the normal reliability of the connector under high tension, and the connector will not fail under high tension.
  • the connector with a maximum outer diameter of 75mm has passed the tensile test. In the test, it did not fail until the tensile force was 37 tons. At this time, the clamping part was damaged and failed, and the slider was only deformed but not broken.

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  • Connector Housings Or Holding Contact Members (AREA)

Abstract

本发明公开了一种快速自适应式旋转插拔水下承力连接器，所述的快速自适应式旋转插拔水下承力连接器包括插头部分和插座部分；所述的插头部分包括插头外壳、设于插头外壳内的插针、以及设于插头外壳外的推拉套、旋转套、前挡圈、棘轮锁紧螺母和后挡圈；所述的插座部分包括插座外壳以及设于插座外壳内的插孔；所述插针和插孔配合从而连接插头部分和插座部分。本发明快速自适应式旋转插拔水下承力连接器能够在大拉力工况下工作，而且具有很高的可靠性。

Description

一种快速自适应式旋转插拔水下承力连接器 技术领域
本发明属于水下连接器技术领域，具体涉及一种快速自适应式旋转插拔水下承力连接器，该结构能够满足插头连接器和插座连接器的快速连接自锁配接或拆卸，最重要的是可满足该水下连接器在大拉力工况下(比如10吨拉力)可靠正常工作。
背景技术
水下连接器的配接方式一般有螺纹式连接、卡口式连接、直插式连接、推拉式连接等。
上述配接方式中，直插式连接是自锁水下连接器的常用结构，插合动作简单快速，只需要轴向进退操作，插合到位即可自动锁定，但由于自锁的机构为弹性结构，故该结构无法承受较大的轴向拉力。而水下连接器常用的螺纹连接方式，虽然连接可靠、抗拉性能优异，但该结构需要有旋动的操作，而且连接到位需要施加一定的力矩，因此无法实现自锁。
现有的大部分水下连接器没有承力功能，无法承受10吨以上的拉力，当水下连接器受到很大拉力的情况下会发生形变甚至破坏从而失效。如在一个由很多节点组成的拖曳阵中，节点和水密缆之间需要提供电气和承力连接，此时水下连接器需要承受较大拉力，极端情况下动拉力甚至可以达到10吨。
现有的承力水下连接器通过钢丝承力绳代替内缆承受拉力(CN110299646A一种承力水密连接器)，只强调了电缆和连接器之间的承力连接，并未提及连接器的承力性能和效果，且其核心在于通过钢丝绳承力保护内缆，而非一个能承受很大拉力(比如10吨)的连接器。
发明内容
本发明的目的是在现有直插式连接结构基础上增加抗拉结构，在实现自锁前提下提高结构的轴向抗拉性能，并保证可靠性。
本发明采用以下技术方案实现：
一种快速自适应式旋转插拔水下承力连接器，包括插头部分和插座部分；
所述的插头部分包括插头外壳、设于插头外壳内部的插针、以及设于插头外壳外部的推拉套、旋转套、前挡圈、棘轮锁紧螺母和后挡圈；插头外壳的一端设有海缆A；所述的插头外壳上沿径向均匀设有用于安装滑块的滑块安装孔，所述的滑块可沿滑块安装孔径向运动； 所述的插头外壳内壁上设有用于给插座部分提供导向的不等宽键组，所述不等宽键组的键设置在滑块之间；所述的插头外壳上设有抱箍安装结构A，抱箍安装结构A两侧设有承力凸台A；所述的插头外壳上还设有用于连接外部设备的外壳销孔A和螺纹A；所述的插头外壳上设有密封圈槽A，利用密封圈槽A(安装防水密封圈)对外部设备和插头外壳之间进行密封；所述的推拉套用于压紧滑块和旋转套；所述的推拉套的端部设有用于安装挡块的挡块安装孔，所述的挡块用于卡住棘轮锁紧螺母从而防止螺纹连接松脱，挡块另一端设有弹簧，弹簧用于弹出挡块从而锁死棘轮锁紧螺母；所述的推拉套上设有用于安装螺纹销钉的推拉套销钉安装孔，所述螺纹销钉用于防止挡块滑出和旋转；所述的旋转套上设有滑块销槽，所述滑块上设有滑块销，所述的滑块销槽与滑块销配合从而通过旋转旋转套来实现滑块的径向运动，进而实现插头部分和插座部分的锁死和解锁；所述的插头外壳上还设有用于安装后挡圈的后挡圈槽，所述后挡圈用于防止棘轮锁紧螺母滑出；所述的插头外壳上还设有用于安装前挡圈的前挡圈槽，所述前挡圈用于防止旋转套滑出；
所述的插座部分包括插座外壳以及设于插座外壳内的插孔；所述插针和插孔配合从而连接插头部分和插座部分；所述插座外壳一端设有海缆B，所述的海缆B和海缆A同轴设置；所述的插座外壳上设有抱箍安装结构B，所述抱箍安装结构B两侧设有承力凸台B；所述的插座外壳上设有与滑块配合的滑块槽，以及与不等宽键组配合的喇叭口导向键槽组，所述的喇叭口导向键槽组的插入端为喇叭状，便于不等宽键组在一定角度范围内能够顺利插合，从而将插针插入插孔；所述的插座外壳上还设有防沙密封圈槽，用于安装密封圈从而防沙；所述插座外壳上还设有用于连接外部设备的外壳销孔B和螺纹C；所述插座外壳上设有密封圈槽B，在密封圈槽B处安装密封圈对外部设备和插座外壳之间进行密封。所述的抱箍安装结构A和B用于安装抱箍。
上述技术方案中，进一步地，所述的不等宽键组至少包括两个宽度不等的键，所述的键用于为插头部分插入插座部分提供导向。
进一步地，所述的挡块上一端设有卡块，另一端设有弹簧安装块，所述的挡块上设有与螺纹销钉配合使用的螺纹销钉配合槽，所述挡块上还设有挡块工具孔，所述的推拉套上设有推拉套工具孔，将工具插入挡块工具孔和推拉套工具孔从而移动挡块。
更进一步地，所述的棘轮锁紧螺母一侧设有棘轮轮齿，与卡块配合使用；所述棘轮锁紧螺母内部分为两部分；一部分设有棘轮螺纹，所述的插头外壳上设有螺纹B，棘轮螺纹与螺纹B配合从而使棘轮锁紧螺母压紧推拉套；另一部分设有光面，光面的内径小于棘轮螺纹的内径，从而避免棘轮螺纹和插头外壳接触导致磨损；所述的棘轮锁紧螺母的外表面设有锁紧螺母工具孔，用于插入工具从而将棘轮锁紧螺母锁紧；所述棘轮锁紧螺母的外表面设计为滚 花面，用于加大摩擦方便拆装。
进一步地，所述的滑块销槽为半径随角度逐渐变大的弧；所述的旋转套的外表面设有工具孔，用于插入工具从而实现旋转套的旋转。
进一步地，所述的推拉套内部设有推拉套导向键槽，所述插头外壳外部设有插头外壳导向键槽，插头外壳导向键槽上固定有导向键，推拉套导向键槽与导向键配合以保证推拉套插合的唯一性；所述推拉套的外表面设计有表面滚花结构，用于加大摩擦方便推拉。
进一步地，所述的插头外壳上滑块周围材料加厚。
本发明的有益效果在于：
本发明装置能够在大拉力工况下工作，而且具有很高可靠性，最大外径75mm的连接器已经制作过样机和拉力实验，破断强度37吨。本发明的插头部分和插座部分通过插合拆卸方便快捷，具有防沙功能；棘轮锁紧螺母和推拉套的外表面均为滚花结构方便用手拆装；螺母能实现自锁；该结构能够和承力缆外壳相连接；不等宽键组可保证插头部分和插座部分的抱箍安装结构的角度方向一致。
附图说明
图1是插头部分剖视结构图。
图2是插座部分剖视结构图。
图3是推拉套结构图。
图4是旋转套结构图。
图5是挡圈结构图。
图6是插头外壳结构图。
图7是滑块结构图。
图8是不等宽键组结构图。
图9是挡块的主视图。
图10是棘轮锁紧螺母结构图。
图11是插座外壳结构示意图。
图12、13是插合过程示意图。
图14、15是拆卸过程示意图。
图16是锁死的连接器受力图，其中滑块受剪切力。
其中，1推拉套、2旋转套、3前挡圈、4插头外壳、5滑块、6不等宽键组、7导向键、8挡块、9弹簧、10螺纹销钉、11棘轮锁紧螺母、12后挡圈、13插针、14海缆安装结构A、15海缆A、16海缆固定结构A、17插座外壳、18插孔、19海缆安装结构B、20海缆B、21 海缆固定结构B、22挡块安装孔、23推拉套导向键槽、24表面滚花结构、25滑块销槽、26工具孔、27滑块销、28不等宽键组的倒角、29卡块、30弹簧安装块、31螺纹销钉配合槽、32挡块工具孔、33滚花面、34锁紧螺母工具孔、35棘轮轮齿、36棘轮螺纹、37光面、38滑块安装孔、39前挡圈槽、40加强结构、41插头外壳导向键槽、42螺纹B、43后挡圈槽、44承力凸台A、45抱箍安装结构A、46螺纹A、47密封圈槽A、48外壳销孔A、49喇叭口导向键槽组、50滑块槽、51防沙密封圈槽、52承力凸台B、53抱箍安装结构B、54外壳销孔B、55密封圈槽B、56螺纹C、57后挡圈、58推拉套销钉安装孔、59推拉套工具孔。
具体实施方式
一种快速自适应式旋转插拔水下承力连接器，包括插头部分(图1)和插座部分(图2)；所述的插头部分包括插头外壳4、设于插头外壳4内的插针13、以及设于插头外壳4外的推拉套1、旋转套2、前挡圈3、棘轮锁紧螺母11和后挡圈12；插头外壳4的一端设有海缆A15，所述的海缆A15通过海缆安装结构A14(可提供一定抗拉强度)安装于插头外壳4上，并通过具有密封防水功能的海缆固定结构A16实现固定；所述的插头外壳4内壁上设有用于给插座部分提供导向的不等宽键组6(图8)，所述的不等宽键组6的键设置在滑块5之间(图7)；所述的插头外壳4上设有抱箍安装结构A45，抱箍安装结构A45两侧设有承力凸台A44；所述的插头外壳4上还设有用于连接外部设备的外壳销孔A48和螺纹A46；所述的插头外壳4上设有密封圈槽A47，利用密封圈槽A47对外部设备和插头外壳4之间进行密封；所述的推拉套1用于压紧滑块5和旋转套2；所述的推拉套1的端部设有用于安装挡块8的挡块安装孔22，所述的挡块8用于卡住棘轮锁紧螺母11从而防止螺纹连接松脱，挡块8另一端设有弹簧9，弹簧9和挡块安装孔22、挡块8配合，保留一定预紧力，能够弹出挡块8从而锁死棘轮锁紧螺母11；所述的推拉套1上设有用于安装螺纹销钉10的推拉套销钉安装孔58，所述螺纹销钉10用于防止挡块8滑出和旋转；所述的旋转套2上设有滑块销槽25，所述滑块5上设有滑块销27，所述的滑块销槽25与滑块销27配合从而通过旋转旋转套2实现滑块5的径向运动，进而实现插头部分和插座部分的锁死和解锁；所述的插头外壳4上还设有用于安装后挡圈57的后挡圈槽43，所述后挡圈57用于防止棘轮锁紧螺母11滑出；所述的插头外壳4上还设有用于安装前挡圈3的前挡圈槽39，所述前挡圈3用于防止旋转套2滑出(如图5，前挡圈3是开口有弹性的金属环，作用是挡住旋转套2使其不掉出来；后挡圈57的结构和功能与前挡圈3类似)；
所述的插座部分包括插座外壳17(图11)以及设于插座外壳17内的插孔18；所述插针13和插孔18配合从而连接插头部分和插座部分；所述插座外壳17一端设有海缆B20，所述 的海缆B20通过海缆安装结构B19(可提供一定抗拉强度)固定于插座外壳17上，并通过具有密封防水功能的海缆固定结构B21实现固定；所述的海缆B20和海缆A16同轴设置；所述的插座外壳17上设有抱箍安装结构B53，所述抱箍安装结构B53两侧设有承力凸台B52；所述的插座外壳17上设有与滑块5配合的滑块槽50，以及与不等宽键组6配合的喇叭口导向键槽组49，所述的喇叭口导向键槽组49的插入端为喇叭状，便于不等宽键组6在一定角度范围内能够顺利插合(即使有一定角度偏差也能顺利插合，使插合过程方便快捷)，从而将插针13插入插孔18(保证插头部分和插座部分的抱箍安装结构的角度方向一致)；所述的插座外壳17上还设有防沙密封圈槽51，用于安装密封圈从而防沙；所述插座外壳17上还设有用于连接外部设备的外壳销孔B54和螺纹C56，插座外壳17上设有密封圈槽B55，在密封圈槽B处安装密封圈对外部设备和插座外壳17之间进行密封。
所述的不等宽键组6至少包括两个宽度不等的键(本实施例中的键是直接用铣刀铣出一个长方体的凸起)。不等宽键组6的每个键的端部设计为倒角结构，如图8中不等宽键组的倒角28，其功能是防止割手；方便和喇叭口配合，方便插合。
如图9所示，所述的挡块8上一端设有卡块29，另一端设有弹簧安装块30，所述的挡块8上设有与螺纹销钉10配合使用的螺纹销钉配合槽31(目的是保证挡块8的行程以及防止其掉出挡块安装孔22)和挡块工具孔32(用于插入工具将挡块8拉回从而拆开结构)；所述的推拉套1上设有推拉套工具孔59，将工具插入挡块工具孔32和推拉套工具孔59从而移动挡块8。所述卡块29设计为倒钩结构(如图9，卡块29的一个角与水平面和竖直面的夹角分别为a和b，a大于1°(可取5°)和b小于摩擦角(可取5°)，目的是防止因摩擦磨损导致卡块29不尖锐从而卡不住棘轮，倒钩结构确保了即使有磨损也能可靠卡住棘轮轮齿，增加了结构的可靠性。
挡块工具孔32和棘轮锁紧螺母11、弹簧9、螺纹销钉10配合，棘轮锁紧螺母11能够旋紧，但是反向旋开时会被挡块8上的卡块29卡死，在拆卸时将工具插进挡块工具孔32和推拉套工具孔59从而将挡块8压进推拉套1，棘轮锁紧螺母11顺利松开。
如图10所示，所述的棘轮锁紧螺母11一侧设有棘轮轮齿35，与卡块29配合使用，棘轮轮齿35的形状与卡块29的倒钩的形状相互配合；所述棘轮锁紧螺母11内部分为两部分；一部分设有棘轮螺纹36，所述的插头外壳4上设有螺纹B42，棘轮螺纹36与螺纹B42配合从而使棘轮锁紧螺母11压紧推拉套1；另一部分设有光面37，光面37的内径小于棘轮螺纹36的内径，从而避免棘轮螺纹36和插头外壳4接触导致磨损；所述的棘轮锁紧螺母11的外表面设有锁紧螺母工具孔34，用于插入工具从而将棘轮锁紧螺母11锁紧；所述棘轮锁紧螺母11的外表面设计为滚花面33，用于加大摩擦方便拆装。
如图4所示为旋转套2，所述的滑块销槽25为半径随角度逐渐变大的弧；所述的旋转套2的外径表面设有工具孔26，用于插入工具从而实现旋转套2的旋转(当手拧困难时可以用专用工具插入工具孔26中辅助拧开)。滑块销槽25和滑块销配合，通过旋转旋转套2让滑块5径向运动，从而实现插头部分和插座部分的锁死和松开。图4中滑块销槽25是6段圆弧(圆弧半径随角度逐渐变大，在本实施例中，其设计具体为：圆弧最小的一端半径为30mm，最大的一端半径为36mm，这样通过旋转可以让滑块有6mm径向行程(36-30))，但是不一定是6段，圆弧个数取决于滑块个数、滑块大小、滑块插入深度和承力能力，因为受拉过程是滑块受剪切过程，滑块越多、滑块越大、滑块插得越深，承力能力越大，圆弧越长，摩擦角越小，提升滑块过程越不容易锁死，这里已经尽量在不影响强度前提下将圆弧设计得最长了。
所述的推拉套1内部设有推拉套导向键槽23，所述插头外壳4外部设有插头外壳导向键槽41，插头外壳导向键槽41上固定有导向键7，推拉套导向键槽23与导向键7配合以保证推拉套1插合的唯一性，从而保证推拉套1的角度和插头部分、插座部分一致；所述推拉套1的外表面设计有表面滚花结构24，用于加大摩擦方便推拉。
所述的插头外壳4上滑块5周围材料加厚(其材料厚度大于其他部位，即图6中的加强结构40)。插头外壳4上沿径向均匀设有滑块安装孔38，其作用是承力以及给滑块5提供导向，所述的滑块5可沿滑块安装孔38径向运动。抱箍安装结构A45和抱箍安装结构B53的作用是安装抱箍，抱箍承力，有一定厚度的承力凸台A44和承力凸台B52可以保证结构安全可靠。螺纹A46和外壳销孔A48用于和别的结构(比如承力缆外壳)配合安装。密封圈槽A47安装防水密封圈，可采用2道密封圈用来保证可靠防水。
如图12、13为本发明的快速自适应式旋转插拔水下承力连接器的插合过程：
假设一开始棘轮锁紧螺母锁上：
1.用工具将挡块8拉进推拉套1，弹簧9被压缩；
2.旋开棘轮锁紧螺母11；保持挡块8在推拉套1中；
3.将推拉套1往远离插座部分的方向拉，将步骤1中的工具拔出，挡块8弹出；
4.旋转旋转套2，滑块5运动到离圆心最远的地方，退出滑块槽50；
5.将插针13插入插孔18从而将插座部分插进插头部分；
6.旋转旋转套2，滑块5运动到离圆心最近的地方，卡住滑块槽50(滑块5和滑块槽50配合锁死，是整个连接器承力的关键部件)；
7.将推拉套1往靠近插座部分的方向推，需保证推拉套导向键槽23对准导向键7，否则 推不进去；
8.旋紧棘轮锁紧螺母11，让其压紧推拉套1，推拉套1盖住滑块5和旋转套2，从而保证旋转套2不会因不希望的外力因素自己旋转导致滑块5脱离滑块槽50而解锁。
如图14、15为本发明的快速自适应式旋转插拔水下承力连接器的拆卸过程：
1.用工具将挡块8拉进推拉套1。
2.旋开棘轮锁紧螺母11。
3.将推拉套1往远离插座部分的方向拉。
4.旋转旋转套2，将滑块5提到最高处从而退出滑块槽50。
5.将插针13从插孔18中拔出，从而将插座部分拔出插头部分。
由图16可知，本发明的结构通过多个滑块和滑块槽提供锁死功能，承受的拉力主要通过滑块、滑块槽、连接器两端的外壳销孔、螺纹承担，通过滑块的尺寸和数量、外壳销孔的尺寸和数量、螺纹大径和螺纹长度保证在大拉力下连接器的正常可靠，连接器不会在大拉力下失效。75mm最大外径的连接器已经通过拉力实验，在实验中直到37吨拉力才破坏失效，此时夹持部位破坏失效，滑块只是变形尚未破断。

Claims (7)

  1. 一种快速自适应式旋转插拔水下承力连接器，其特征在于，包括插头部分和插座部分；
    所述的插头部分包括插头外壳、设于插头外壳内的插针、以及设于插头外壳外的推拉套、旋转套、前挡圈、棘轮锁紧螺母和后挡圈；插头外壳的一端设有海缆A；所述的插头外壳上沿径向均匀设有用于安装滑块的滑块安装孔，所述的滑块可沿滑块安装孔径向运动；所述的插头外壳内壁上设有用于给插座部分提供导向的不等宽键组，所述不等宽键组的键设置在滑块之间；所述的插头外壳上设有抱箍安装结构A，抱箍安装结构A两侧设有承力凸台A；所述的插头外壳上还设有用于连接外部设备的外壳销孔A和螺纹A；所述的插头外壳上设有密封圈槽A，利用密封圈槽A对外部设备和插头外壳之间进行密封；所述的推拉套用于压紧滑块和旋转套；所述的推拉套的端部设有用于安装挡块的挡块安装孔，所述的挡块用于卡住棘轮锁紧螺母从而防止螺纹连接松脱，挡块另一端设有弹簧，弹簧用于弹出挡块从而锁死棘轮锁紧螺母；所述的推拉套上设有用于安装螺纹销钉的推拉套销钉安装孔，所述螺纹销钉用于防止挡块滑出和旋转；所述的旋转套上设有滑块销槽，所述滑块上设有滑块销，所述的滑块销槽与滑块销配合从而通过旋转旋转套来实现滑块的径向运动，进而实现插头部分和插座部分的锁死和解锁；所述的插头外壳上还设有用于安装后挡圈的后挡圈槽，所述后挡圈用于防止棘轮锁紧螺母滑出；所述的插头外壳上还设有用于安装前挡圈的前挡圈槽，所述前挡圈用于防止旋转套滑出；
    所述的插座部分包括插座外壳以及设于插座外壳内的插孔；所述插针和插孔配合从而连接插头部分和插座部分；所述插座外壳一端设有海缆B，所述的海缆B和海缆A同轴设置；所述的插座外壳上设有抱箍安装结构B，所述抱箍安装结构B两侧设有承力凸台B；所述的插座外壳上设有与滑块配合的滑块槽，以及与不等宽键组配合的喇叭口导向键槽组，所述的喇叭口导向键槽组的插入端为喇叭状，便于不等宽键组在一定角度范围内能够顺利插合，从而将插针插入插孔；所述的插座外壳上还设有防沙密封圈槽，用于安装密封圈从而防沙；所述插座外壳上还设有用于连接外部设备的外壳销孔B和螺纹C；所述插座外壳上设有密封圈槽B，在密封圈槽B处安装密封圈对外部设备和插座外壳之间进行密封。
  2. 根据权利要求1所述的快速自适应式旋转插拔水下承力连接器，其特征在于，所述的不等宽键组至少包括两个宽度不等的键，所述的键用于为插头部分插入插座部分提供导向。
  3. 根据权利要求1所述的快速自适应式旋转插拔水下承力连接器，其特征在于，所述的挡块上一端设有卡块，另一端设有弹簧安装块，所述的挡块上设有与螺纹销钉配合使用 的螺纹销钉配合槽，所述挡块上还设有挡块工具孔，所述的推拉套上设有推拉套工具孔，将工具插入挡块工具孔和推拉套工具孔从而移动挡块。
  4. 根据权利要求3所述的快速自适应式旋转插拔水下承力连接器，其特征在于，所述的棘轮锁紧螺母一侧设有棘轮轮齿，与卡块配合使用；所述棘轮锁紧螺母内部分为两部分；一部分设有棘轮螺纹，所述的插头外壳上设有螺纹B，棘轮螺纹与螺纹B配合从而使棘轮锁紧螺母压紧推拉套；另一部分设有光面，光面的内径小于棘轮螺纹的内径，从而避免棘轮螺纹和插头外壳接触导致磨损；所述的棘轮锁紧螺母的外表面设有锁紧螺母工具孔，用于插入工具从而将棘轮锁紧螺母锁紧；所述棘轮锁紧螺母的外表面设计为滚花面，用于加大摩擦方便拆装。
  5. 根据权利要求1所述的快速自适应式旋转插拔水下承力连接器，其特征在于，所述的滑块销槽为半径随角度逐渐变大的弧；所述的旋转套的外表面设有工具孔，用于插入工具从而实现旋转套的旋转。
  6. 根据权利要求1所述的快速自适应式旋转插拔水下承力连接器，其特征在于，所述的推拉套内部设有推拉套导向键槽，所述插头外壳外部设有插头外壳导向键槽，插头外壳导向键槽上固定有导向键，推拉套导向键槽与导向键配合以保证推拉套插合的唯一性；所述推拉套的外表面设计有表面滚花结构，用于加大摩擦方便推拉。
  7. 根据权利要求1所述的快速自适应式旋转插拔水下承力连接器，其特征在于，所述的插头外壳上滑块周围材料加厚。
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