CN113659385A

CN113659385A - High-density connector with long plugging life

Info

Publication number: CN113659385A
Application number: CN202110890646.1A
Authority: CN
Inventors: 张瑞; 王振海; 陈祥; 常鑫
Original assignee: Peaceful Vision Electronic Lianyungang Co ltd
Current assignee: Peaceful Vision Electronic Lianyungang Co ltd
Priority date: 2021-08-04
Filing date: 2021-08-04
Publication date: 2021-11-16

Abstract

The invention discloses a high-density connector with a long plugging life, which comprises a plug and a socket, wherein the plug comprises a spline shell, a connecting nut, a short round insulator, a jack, a sheath, a first numbering plate, a corrugated spring, a check ring, a three-key check ring, a grounding spring, a staple bolt, a locking washer, an insulating washer, a retainer ring, a plug dust cap, a first dust cap and a rear square plate shell, the connecting nut is in threaded connection with one end of the spline shell, the grounding spring is fixedly connected inside the connecting nut, the insulating washer is fixedly arranged between the connecting nut and the spline shell, the locking washer is fixedly connected to the inner side of the insulating washer, the three-key check ring is fixedly arranged inside the spline shell through the corrugated spring, the check ring is fixedly connected to the outer side end face of the three-key check ring, and the retainer ring is fixedly connected to the outer side of the check ring. When the waterproof plug is used, the plug and the socket can be conveniently and quickly inserted, the service life is long, and the waterproof plug is moisture-proof, dustproof and not easy to damage.

Description

High-density connector with long plugging life

Technical Field

The invention relates to the technical field of connectors, in particular to a high-density connector with a long plugging life.

Background

The connector is a component which is frequently touched by the technicians in electronic engineering and has a very simple function: in the circuit is blocked or isolated between the circuit, the bridge of communication is set up, thus make the current flow, make the circuit realize the predetermined function, the interface unit is the indispensable part in the electronic equipment, the interface unit form and structure are varied, with applying the target, frequency, power, application environment, etc. to be different, there are various interface units of different forms, for example, the interface unit that lights the lamp and interface unit of the hard disk drive on the court, and the interface unit that lights the rocket are very different, but whatever interface unit, must guarantee the current to circulate smoothly continuously and reliably.

An electrical connector assembly and an electrical connector according to CN201220031695.6, comprising a first electrical connector and a second electrical connector adapted to mate with each other; the first electrical connector has a first connector housing provided with a locking portion; the second electrical connector has a second connector housing provided with a latch locked by the latch when the first electrical connector is mated with the second electrical connector, and the electrical connector assembly further includes a protective member mounted on the first connector housing and movable in a mating direction of the first connector housing and the second connector housing between an operative position in which the protective member is located at a position blocking disengagement of the latch from the latch and an inoperative position in which the protective member is located at a position allowing disengagement of the latch from the latch.

According to a side play line connector head, connector seat and connector that patent number is CN202021470504.7, the utility model discloses a side play line connector head, a connector seat and a connector, side play line connector head includes: the wire-outgoing terminal, the switching part and the plug-in end used for being plugged with the connector base, a preset number of first contact pins are arranged in the plug-in end, the switching part is rotatably connected with the plug-in end, the wire-outgoing terminal is fixedly connected with the switching part, and the arrangement direction of the first contact pins and the wire-outgoing direction of the wire-outgoing terminal mutually form a preset angle. The application provides a side outlet connector head has outlet end output signal by plug terminal input signal, because switching portion and plug terminal are rotatable coupling, when the outlet direction of outlet end is adjusted to needs, rotates the outlet end and can adjust, need not to set up external structure and adjusts convenient and fast.

However, the existing plug and socket connected therein have the following disadvantages in the use process, such as:

the mode that the sheath adopted the crimping after the assembly is fixed on the jack to make the in-process that uses cause easily not hard up and the separation between plug and the socket, and stability between plug and the socket reduces after plug and socket a lot of plug, and can make the life of plug and socket reduce after inserting and pulling out many times, can not prevent dust can not abundant heat dissipation, so need a high density connector who inserts the life-span, in order to solve the problem that proposes in the aforesaid.

Disclosure of Invention

The present invention is directed to a high density connector with a long plugging life to solve the above problems.

In order to achieve the purpose, the invention provides the following technical scheme: a high-density connector with a long plugging life comprises a plug and a socket, wherein the plug comprises a spline shell, a connecting nut, a short round insulator, a jack, a sheath, a first number plate, a corrugated spring, a retainer ring, a three-key retainer ring, a grounding spring, a staple bolt, a locking washer, an insulating washer, a clamping ring, a plug dustproof cap and a first dustproof cap, the connecting nut is in threaded connection with one end of the spline shell, the grounding spring is fixedly connected inside the connecting nut, the insulating washer is fixedly installed between the connecting nut and the spline shell, the locking washer is fixedly connected inside the insulating washer, the three-key retainer ring is fixedly installed inside the spline shell through the corrugated spring, the retainer ring is fixedly connected on the outer side end face of the three-key retainer ring, the clamping ring is fixedly connected outside the retainer ring, and the fixing clamping ring is clamped inside the spline shell, the first numbering plate is arranged on the outer wall of the spline shell, the plug dustproof cap is fixedly sleeved at the front end of the connecting nut, the first dustproof cap is fixedly sleeved at the front end of the spline shell, the staple bolts are uniformly arranged on the outer wall of the connecting nut, the short round insulator is fixedly arranged on the inner wall of the spline shell, the jacks are uniformly arranged in the connecting nut, the sheath is fixedly arranged outside the jacks, the plug dustproof cap and the first dustproof cap are both made of stainless steel materials, and the outer parts of the plug dustproof cap and the first dustproof cap are both wrapped by rubber sheaths;

the socket comprises a rear square disc shell, a high circular insulator, a welding cup pin, a U-shaped rubber ring, a square disc rubber gasket, a second numbering plate, a socket dustproof cap and a second dustproof cap, wherein the high circular insulator is fixedly arranged on the inner wall of the rear square disc shell, the welding cup pin is arranged on the outer side in the rear square disc shell, the U-shaped rubber ring is fixedly arranged at the bottom end in one end of the rear square disc shell, the square disc rubber gasket is fixedly arranged on the outer portion of the rear square disc shell, the second numbering plate is arranged on the outer wall of one end of the rear square disc shell, the socket dustproof cap and the second dustproof cap are respectively sleeved at two ends of the rear square disc shell, the socket dustproof cap and the second dustproof cap are both made of stainless steel materials, the outer portions of the socket dustproof cap and the second dustproof cap are both wrapped by rubber sleeves, and the material of the second numbering plate is stainless steel, and the second number plate is evenly provided with squares, the high circular insulator is made of rubber, the square rubber pad is made of corrosion-resistant rubber, protective threaded rings are arranged outside the socket dustproof cap and the second dustproof cap, the socket dustproof cap and the second dustproof cap are identical in size and specification, and a clamping groove is formed in the front end of the socket dustproof cap and the front end of the second dustproof cap.

Preferably, the riveting part of the staple bolt and the connecting nut is firmly riveted, and the riveting of the staple bolt is tightly attached to the connecting nut.

Preferably, the three slotted bottoms and two side walls of the connecting nut and the surface of the lock washer are coated with lubricating grease.

Preferably, the spline shell and the short round insulator are bonded by adopting viscose glue, and the height of the upper ends of the spline shell and the short round insulator is lower than that of the end face of the insulator.

Preferably, one end of the spline housing, which is provided with the first dust cap, can be inserted into one end of the rear square disc housing, which is provided with the socket dust cap, in an adaptive manner, and the plug connector in the spline housing is electrically connected with the jack arranged in the rear square disc housing in an inserting manner.

Preferably, the insertion hole formed in the rear square plate shell is obliquely arranged.

Preferably, the socket dust cap includes sealed lid and protection go-between, just the upper end screw thread of protection go-between is pegged graft in the inside of sealed lid, just the inside fixed mounting of sealed lid has miniature heat dissipation fan.

Preferably, the rear square disc shell is connected to the inside of the square disc rubber mat in a sliding and clamping mode through a rotating clamping ring, a reset plate is fixedly installed at the bottom end of the rear square disc shell, an auxiliary baffle is fixedly installed at the bottom end of the square disc rubber mat, and a reset spring is fixedly installed between the auxiliary baffle and the reset plate.

Preferably, the auxiliary baffle and the reset plate are both arranged in a hexagonal prism shape, and six reset springs are arranged.

Preferably, the metal wires are uniformly fixed and embedded in the square disc rubber mat.

Compared with the prior art, the invention has the following beneficial effects:

according to the invention, through optimization of the jack sheath mounting structure, the riveting procedure of sheath assembly is reduced, the reliability of the sheath is improved, the jack sheath is particularly suitable for the use situation of frequently pulling and inserting actions, the reliability of the product is improved, and the sealing performance can prevent dust and rain; the mechanical life can be pulled out and inserted more than one thousand times; the connector shell is made of stainless steel, is strong in corrosion resistance and high-temperature resistant, and can adapt to the use in aerospace environment; the contact piece of the device adopts a contact pair of the contact pin and the inclined slotted jack, so that the contact reliability is high, and the vibration resistance is excellent; the locking sleeve is made of lead brass, the elasticity is better, the electrical property is more excellent, the locking sleeve cannot be automatically unlocked when being exchanged with a socket, the problem of automatic unlocking of a product in the vibration and impact processes is solved, the interchangeability and the safety of the product are ensured, the structure of the contact piece sheath of the device is changed, the structure is changed by adopting a mode of sleeving the contact piece sheath from the end of a welding cup, the operation difficulty in the assembly process is reduced, and the reliability of the jack sheath after transferring is enhanced; the connector adopts bayonet type quick connection structure, has characteristics such as pull out fast and insert, five key location, high density small volume, blind plug, and this device long service life can be fast and stable peg graft between the plug and socket, and the in-process socket of pegging graft can carry out autogyration regulation to the socket can divide adjusting position by oneself when making plug grafting position inaccurate, and can carry out automatic resetting after plug and socket connects.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the plug structure of the present invention;

FIG. 2 is a perspective view of the plug of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 1 at I;

FIG. 4 is a schematic view of a socket structure according to the present invention;

FIG. 5 is a perspective view of the socket of the present invention;

FIG. 6 is a schematic structural diagram of a second embodiment of a dust cap of a socket according to the present invention;

FIG. 7 is a disassembled view of a second embodiment of a dust cap of the socket of the present invention;

FIG. 8 is a schematic structural view of a second embodiment of a rear square disk housing of the present invention;

FIG. 9 is a bottom structural view of a second embodiment of the rear square disk housing of the present invention;

fig. 10 is a disassembled schematic view of a second embodiment of the rear square disk housing of the present invention.

In the figure: 1-spline shell, 2-connecting nut, 3-short round insulator, 4-jack, 5-sheath, 6-first plate, 7-ripple spring, 8-retainer, 9-triple key retainer, 10-grounding spring, 11-staple, 12-lock washer, 13-insulating washer, 14-collar, 15-plug dust cap, 16-first dust cap, 17-rear square plate shell, 18-high round insulator, 19-welding cup pin, 20-U rubber ring, 21-square plate rubber pad, 22-second plate, 23-socket dust cap, 24-second dust cap, 25-sealing cover, 26-protective connecting ring, 27-micro heat dissipation fan, 28-auxiliary baffle plate, 29-rotating snap ring, 30-reset plate and 31-reset spring.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The invention is further described below with reference to the accompanying drawings.

Example 1

Referring to fig. 1-5, an embodiment of the present invention is shown: a high-density connector with long plugging life comprises a plug and a socket, wherein the plug comprises a spline shell 1, a connecting nut 2, a short round insulator 3, a jack 4, a sheath 5, a first number plate 6, a corrugated spring 7, a retainer ring 8, a three-key retainer ring 9, a grounding spring 10, a staple 11, a lock washer 12, an insulating washer 13, a retainer ring 14, a plug dust cap 15 and a first dust cap 16, the connecting nut 2 is in threaded connection with one end of the spline shell 1, the grounding spring 10 is fixedly connected inside the connecting nut 2, the insulating washer 13 is fixedly arranged between the connecting nut 2 and the spline shell 1, the lock washer 12 is fixedly connected inside the insulating washer 13, the three-key retainer ring 9 is fixedly arranged inside the spline shell 1 through the corrugated spring 7, the retainer ring 8 is fixedly connected on the outer side end face of the three-key retainer ring 9, and the retainer ring 14 is fixedly connected outside the retainer ring 8, the retainer ring 14 is fixedly clamped inside the spline shell 1, the first number plate 6 is arranged on the outer wall of the spline shell 1, the plug dustproof cap 15 is fixedly sleeved at the front end of the connecting nut 2, the first dustproof cap 16 is fixedly sleeved at the front end of the spline shell 1, the staple bolts 11 are uniformly arranged on the outer wall of the connecting nut 2, the short round insulator 3 is fixedly arranged on the inner wall of the spline shell 1, the jacks 4 are uniformly arranged inside the connecting nut 2, the sheaths 5 are fixedly arranged outside the jacks 4, the plug dustproof cap 15 and the first dustproof cap 16 are both made of stainless steel materials, and the outer parts of the plug dustproof cap 15 and the first dustproof cap 16 are both wrapped by rubber sheaths;

the socket comprises a rear square disc shell 17, a high circular insulator 18, a welding cup pin 19, a U-shaped rubber ring 20, a square disc rubber gasket 21, a second numbering plate 22, a socket dustproof cap 23 and a second dustproof cap 24, wherein the high circular insulator 18 is fixedly arranged on the inner wall of the rear square disc shell 17, the welding cup pin 19 is arranged on the outer side of the inner part of the rear square disc shell 17, the U-shaped rubber ring 20 is fixedly arranged at the bottom end of the inner part of one end of the rear square disc shell 17, the square disc rubber gasket 21 is fixedly arranged on the outer part of the rear square disc shell 17, the second numbering plate 22 is arranged on the outer wall of one end of the rear square disc shell 17, the socket dustproof cap sleeve 23 and the second dustproof cap 24 are respectively sleeved at two ends of the rear square disc shell 17, the socket dustproof cap (23) and the second dustproof cap (24) are both made of stainless steel, and the outer parts of the socket dustproof cap 23 and the second dustproof cap 24 are both wrapped by rubber, the material of second number plate 22 is the stainless steel, and evenly is equipped with the square on the second number plate 22, and the material of high circular insulator 18 is rubber, and the material of square dish cushion 21 is corrosion-resistant rubber, the outside of socket dust cap 23 and second dust cap 24 all is equipped with the protective thread circle, and the size and specification of socket dust cap 23 and second dust cap 24 are the same, and the inside draw-in groove that is equipped with of front end of socket dust cap 23 and second dust cap 24.

Referring to fig. 1-5, the rivet joint of the clamp 11 and the connecting nut 2 is firmly riveted, and the clamp 11 should be tightly attached to the connecting nut 2.

Referring to fig. 1 to 5, the surfaces of the three grooved bottom surfaces and the two side walls of the coupling nut 2 and the lock washer 12 are coated with grease.

Referring to fig. 1-5, the spline housing 1 and the short round insulator 3 are bonded together by glue, and the heights of the upper ends of the spline housing 1 and the short round insulator 3 are lower than the height of the end face of the insulator.

Referring to fig. 1-5, one end of the spline housing 1, which is provided with the first dust cap 16, is fittingly inserted into one end of the rear square disc housing 17, which is provided with the socket dust cap 23, and the plug connector inside the spline housing 1 is electrically connected with the jack provided inside the rear square disc housing 17.

Referring to fig. 1-5, the jacks formed in the rear square plate shell 17 are inclined, so that the plug and the socket can be conveniently and rapidly plugged, and the adjusting time between the plug and the socket is greatly shortened.

Referring to fig. 1 to 5, the receptacle dust cap 23 includes a sealing cap 25 and a protective connecting ring 26, wherein the upper end of the protective connecting ring 26 is screwed into the sealing cap 25, and a micro heat dissipation fan 27 is fixedly mounted inside the sealing cap 25.

Referring to fig. 1-5, the rear square disc housing 17 is slidably engaged with the inside of the square disc rubber mat 21 through a rotating snap ring 29, a return plate 30 is fixedly mounted at the bottom end of the rear square disc housing 17, an auxiliary baffle 28 is fixedly mounted at the bottom end of the square disc rubber mat 21, and a return spring 31 is fixedly mounted between the auxiliary baffle 28 and the return plate 30.

Referring to fig. 1-5, the auxiliary baffle 28 and the return plate 30 are disposed in a hexagonal prism shape, and six return springs 31 are disposed.

Referring to fig. 1-5, the square rubber mat 21 is uniformly fixed with metal wires.

This embodiment is when implementing, can carry out dustproof and damp-proofing processing to the plug through the setting of plug dust cap 15 and first dust cap 16, the inside jack of seting up of back square plate casing 17 is slope setting can make convenient and fast's grafting that can carry on when the plug inserts to the inside of jack, adjustment time when great having shortened the grafting, plug dust cap 15 and first number plate 6 and socket dust cap 23 and the dustproof cap 24 of second can carry out convenient and fast's taking off, thereby make things convenient for the normal use of socket and plug.

Example 2

On the basis of embodiment 1, as shown in fig. 6 to 10, the socket dust cap 23 includes a sealing cover 25 and a protection connecting ring 26, the upper end of the protection connecting ring 26 is screwed into the sealing cover 25, a micro heat dissipation fan 27 is fixedly mounted inside the sealing cover 25, the rear square disc housing 17 is slidably clamped inside the square disc rubber mat 21 by a rotating snap ring 29, a reset plate 30 is fixedly mounted at the bottom end of the rear square disc housing 17, an auxiliary baffle 28 is fixedly mounted at the bottom end of the square disc rubber mat 21, a reset spring 31 is fixedly mounted between the auxiliary baffle 28 and the reset plate 30, the auxiliary baffle 28 and the reset plate 30 are both arranged in a hexagonal prism shape, six reset springs 31 are provided, and metal wires are uniformly fixed and embedded inside the square disc rubber mat 21.

In the implementation of the embodiment, the socket can be subjected to real-time heat dissipation and temperature reduction treatment through the micro heat dissipation fan 27 arranged inside the sealing cover 25, when the plug is connected with the rear square disc shell 17, the rear square disc shell 17 can rotate on the square disc rubber mat 21 automatically through rotating the snap ring 29, so that the clamping position and angle between the plug and the socket can be adjusted, the plug and the socket can be clamped quickly and conveniently, and after the plug and the socket are connected, the rear square disc shell 17 can be reset through rotating the snap ring 29 again through rotating the inner part of the square disc rubber mat 21 through the elastic force of the spring 31, so that the next plug can be conveniently plugged.

The working principle is as follows: riveting a staple 11 on a connecting nut 2, then installing an insulating washer 13 into the connecting nut 2, installing a spline shell 1, sequentially installing a locking washer 12, a corrugated spring 7, a three-key retainer ring 9, a retainer ring 8 and a retainer ring 14, installing a short circular insulator 3 in the spline shell 1, sleeving a sheath 5 into a jack 4 from the direction of a welding cup to sleeve the bottom, inserting the end of the welding cup of the jack 4 into the front end of the short circular insulator 3, pushing the jack 4 to the step of the sheath 5 to be flatly attached to the short circular insulator 3, exposing the rear end of the short circular insulator 3 out of the welding cup of the jack 4 at the moment, enabling the welding cup to face away from the axis of the insulator, and ensuring no gap and play among the sheath 5, the jack 4 and the insulator; gluing the glue coated area of the short round insulator 3 with the jack 4 assembled, placing the short round insulator into the spline shell 1, aligning the main key directions, performing AB glue encapsulation after the short round insulator reaches the position, and placing the short round insulator into a numbering plate after the short round insulator is encapsulated, so that the numbering plate is glued into a corresponding groove of the spline shell 1; after the glue is dried, the plug dust cap 15 and the first dust cap 16 are arranged to protect the jack, firstly, a welding cup pin 19 is inserted from the rear part of the high circular insulator 18, the pin is pushed to the end surface of the rear part of the high circular insulator 18 to be attached to the front step of the welding cup, namely, the pin is in place, and the opening of the welding cup is back to the axial direction of the high circular insulator 18; the U-shaped rubber ring 20 is arranged in a groove of a rear square disc shell 17, and lubricating grease is coated before the U-shaped rubber ring is arranged; gluing the glue coating grooves on the side surfaces of the high circular insulators 18 after the pins are installed, installing the high circular insulators into an after-installation square disc shell 17, then encapsulating AB glue, installing a numbering plate after encapsulation, and gluing the numbering plate into a corresponding groove of the after-installation square disc shell 17; the socket dust cap 23 is arranged after the glue is dried, the second dust cap 24 protects the contact pin, so that the assembly of the plug and the socket is completed, the assembled plug and the assembled socket can be connected quickly and stably, the socket can be subjected to real-time heat dissipation and cooling treatment through the micro heat dissipation fan 27 arranged inside the sealing cover 25, when the plug is connected with the rear square disc shell 17, the rear square disc shell 17 can automatically rotate on the square disc rubber pad 21 through rotating the clamping ring 29, so that the clamping position and angle between the plug and the socket are adjusted, the plug and the socket can be clamped quickly and conveniently, the rear square disc shell 17 can be reset through rotating the clamping ring 29 again inside the square disc rubber pad 21 through the elasticity of the elastic force 31 after the connection between the plug and the socket, and the next plug connection is facilitated.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high-density connector of life-span is inserted to high pulling out, includes plug and socket, its characterized in that: the plug comprises a spline shell (1), a connecting nut (2), a short round insulator (3), a jack (4), a sheath (5), a first numbering plate (6), a corrugated spring (7), a retainer ring (8), a three-key retainer ring (9), a grounding spring (10), a clamp nail (11), a locking washer (12), an insulating washer (13), a retainer ring (14), a plug dust cap (15) and a first dust cap (16).

2. A high-plug-life, high-density connector as defined in claim 1, wherein: the connecting nut (2) is in threaded connection with one end of the spline shell (1), the grounding spring (10) is fixedly connected inside the connecting nut (2), the insulating washer (13) is fixedly installed between the connecting nut (2) and the spline shell (1), the locking washer (12) is fixedly connected on the inner side of the insulating washer (13), the triple-key retainer ring (9) is fixedly installed inside the spline shell (1) through the corrugated spring (7), the retainer ring (8) is fixedly connected on the outer side end face of the triple-key retainer ring (9), the retainer ring (14) is fixedly connected on the outer side of the retainer ring (8), and the retainer ring (14) is fixedly clamped inside the spline shell (1); the first numbering plate (6) is arranged on the outer wall of the spline shell (1), the plug dustproof cap (15) is fixedly sleeved at the front end of the connecting nut (2), the first dustproof cap (16) is fixedly sleeved at the front end of the spline shell (1), and the staple bolts (11) are uniformly arranged on the outer wall of the connecting nut (2); the short round insulator (3) is fixedly arranged on the inner wall of the spline shell (1), the insertion holes (4) are uniformly formed in the connecting screw cap (2), the sheath (5) is fixedly arranged on the outer portion of the insertion holes (4), the plug dust cap (15) and the first dust cap (16) are both made of stainless steel materials, and the outer portions of the plug dust cap (15) and the first dust cap (16) are both wrapped by rubber sleeves; the socket comprises a rear square disc shell (17), a high circular insulator (18), a welding cup pin (19), a U-shaped rubber ring (20), a square disc rubber gasket (21), a second number plate (22), a socket dust cap (23) and a second dust cap (24); the high circular insulator (18) is fixedly arranged on the inner wall of a rear square disc shell (17), the welding cup inserting needle (19) is arranged on the outer side of the inner part of the rear square disc shell (17), the U-shaped rubber ring (20) is fixedly arranged at the bottom end of the inner part of one end of the rear square disc shell (17), the square disc rubber gasket (21) is fixedly arranged on the outer part of the rear square disc shell (17), the second number plate (22) is arranged on the outer wall of one end of the rear square disc shell (17), and the socket dust cap (23) and the second dust cap (24) are respectively sleeved at two ends of the rear square disc shell (17); the socket dustproof cap (23) and the second dustproof cap (24) are both made of stainless steel materials, the outsides of the socket dustproof cap (23) and the second dustproof cap (24) are both wrapped by rubber sleeves, the second number plate (22) is made of stainless steel, square grids are uniformly arranged on the second number plate (22), the high-circular insulator (18) is made of rubber, and the square-plate rubber pad (21) is made of corrosion-resistant rubber; protective threaded rings are arranged outside the socket dustproof cap (23) and the second dustproof cap (24), the socket dustproof cap (23) and the second dustproof cap (24) are identical in size and specification, and clamping grooves are formed in the front ends of the socket dustproof cap (23) and the second dustproof cap (24); the riveting part of the clamp nail (11) and the connecting nut (2) is firmly riveted, and the riveting of the clamp nail (11) is tightly attached to the connecting nut (2).

3. A high-plug-life, high-density connector as defined in claim 2, wherein: and lubricating grease is coated on the bottom surfaces and the side walls of the three grooves of the connecting nut (2) and the surfaces of the locking washers (12).

4. A high-plug-life, high-density connector as defined in claim 3, wherein: the spline shell (1) and the short round insulator (3) are bonded by adopting viscose glue, and the heights of the upper ends of the spline shell (1) and the short round insulator (3) are lower than the height of the end face of the insulator.

5. A high-plug-life, high-density connector as defined in claim 4, wherein: the socket dustproof structure is characterized in that one end, provided with the first dustproof cap (16), of the spline shell (1) can be inserted into one end, provided with the socket dustproof cap (23), of the rear square disc shell (17) in an adaptive mode, and a plug connector in the spline shell (1) is electrically connected with a jack formed in the rear square disc shell (17) in an inserting mode.

6. A high-plug-life, high-density connector as defined in claim 5, wherein: the jack arranged in the rear square disc shell (17) is obliquely arranged.

7. A high-plug-life, high-density connector as defined in claim 6, wherein: socket dust cap (23) are including sealed lid (25) and protection go-between (26), just the upper end screw thread of protection go-between (26) is pegged graft in the inside of sealed lid (25), just the inside fixed mounting of sealed lid (25) has miniature heat dissipation fan (27).

8. A high-plug-life, high-density connector as defined in claim 7, wherein: the rear square plate shell (17) is connected with the inside of a square plate rubber mat (21) in a sliding and clamping mode through a rotating clamping ring (29), a reset plate (30) is fixedly installed at the bottom end of the rear square plate shell (17), an auxiliary baffle plate (28) is fixedly installed at the bottom end of the square plate rubber mat (21), and a reset spring (31) is fixedly installed between the auxiliary baffle plate (28) and the reset plate (30).

9. A high-plug-life, high-density connector as defined in claim 8, wherein: the auxiliary baffle plate (28) and the reset plate (30) are both arranged in a hexagonal prism shape, and six reset springs (31) are arranged.

10. A high-plug-life, high-density connector as defined in claim 9, wherein: and metal wires are uniformly and fixedly embedded in the square disc rubber mat (21).