CN115377731B

CN115377731B - Female socket and waterproof connector capable of realizing module combination

Info

Publication number: CN115377731B
Application number: CN202211319241.3A
Authority: CN
Inventors: 朱锋; 梁鸿毅; 易小许
Original assignee: Hong Ru Connectors Co ltd
Current assignee: Guangdong Hongru Technology Co ltd
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-03-24
Anticipated expiration: 2042-10-26
Also published as: CN115377731A

Abstract

A female socket and a waterproof connector capable of being combined with modules are disclosed, wherein the female socket comprises a body, at least two jacks for inserting male rubber shells are formed on the body, and a plurality of first holes for inserting male terminals are formed at one ends of a plurality of jacks far away from the male rubber shells; the inside of the socket is formed with a plurality of fool-proof convex ribs matched with the structure of the male rubber shell, and the fool-proof convex ribs inside each socket are different. The female socket and the waterproof connector capable of being combined with the module provided by the invention have the advantages of convenience in function expansion and convenience in disassembly.

Description

Female socket and waterproof connector capable of realizing module combination

Technical Field

The invention relates to the technical field of electric connectors, in particular to a female socket and a waterproof connector capable of carrying out module combination.

Background

A connector is a component that is frequently touched by electronic engineers for allowing current to flow between blocked or isolated dead circuits within a circuit to allow the circuit to perform a predetermined function. Because the connector needs to be used continuously for a long time after being communicated, even the connector needs to be moved integrally, the communication stability of the connector after being communicated is more and more valued.

Generally, two terminals of the connector are respectively inserted into two plastic shells and fixed, so that the two terminals are electrically connected. In the connectors in the prior art, a female rubber shell and a male rubber shell are arranged, and a male terminal and a female terminal are respectively inserted into the female rubber shell and the male rubber shell to realize electric connection. However, such a design has the following disadvantages.

First, the function expansion is inconvenient. For example, CN215008761U discloses a foolproof connector, which comprises a male plastic shell, a male terminal disposed in the male plastic shell, a female plastic shell matched with the male plastic shell, and a female terminal disposed in the female plastic shell and matched with the male terminal, wherein one end of the male terminal is provided with two insertion pieces matched with a circuit board, the other end of the male terminal is provided with an insertion part matched with the female terminal, two guide convex blocks are arranged on one side of the female rubber shell, two guide grooves matched with the two guide convex blocks are arranged in the male rubber shell, a guide block is arranged on the other side of the female rubber shell, a limiting guide groove matched with the guide block is arranged in the male rubber shell, the guide block is clamped in the limiting guide groove, the guide convex blocks are clamped in the guide grooves, and the limiting matching of the male rubber shell and the female rubber shell is formed. However, the number of holes formed in the plastic shell is determined, and the number of terminals determines the functional complexity of the electrical connector, and the number of terminals needs to be determined according to the number of holes formed in the plastic shell, so that after the plastic shell is determined, the functional complexity of the electrical connector is determined, and at this time, if function expansion is desired, the male plastic shell and the female plastic shell must be replaced, which is not only inconvenient, but also extremely high in replacement cost, and almost equal to reinstallation of a new electrical connector.

Secondly, for example, CN208955353U discloses a miniature signal transmission connector, wherein the female terminal includes a female terminal substrate and two elastic arms, one end of the female terminal substrate is vertically connected with the two elastic arms, and an insertion hole for inserting and mating the male terminal is formed between the two elastic arms, but because the male terminal and the female terminal generally adopt interference fit, while increasing connection tightness, the external force required for installing and disassembling the connector is also increased, even if the connector can be directly assembled by a machine during installation, manual treatment is still required during disassembling the connector, especially after a period of use, the problems of deformation and oxidation of the internal structure of the connector can cause a larger external force to be required during disassembling the connector. This problem is not obvious when the number of terminals is small, but as the functional complexity of the electrical connector increases, the number of terminals increases, and the force required to disassemble the connector increases, which is very inconvenient.

Disclosure of Invention

The invention aims to solve the technical problems that the function of the waterproof connector in the prior art is inconvenient to expand and disassemble, and provides the female socket and the waterproof connector which are convenient to expand and disassemble.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

a female socket is used as a female rubber shell of an electric connector and comprises a body, wherein at least two inserting holes for inserting male rubber shells are formed in the body, and a plurality of first holes for inserting male terminals are formed in one ends, far away from the male rubber shells, of the inserting holes; the socket is internally formed with a plurality of fool-proof convex ribs matched with the structure of the male rubber shell, and each fool-proof convex rib inside the socket is different from each other.

In the female socket, the socket is a rectangular groove surrounded by a plurality of plate-shaped pieces protruding out of the body, and fool-proof convex ribs are arranged on the inner wall surface of the socket in four directions.

All set up on four directions of socket internal face and prevent slow-witted protruding muscle, can further reduce the public gluey shell possibility of misplugging, further promoted female socket and even whole waterproof connector's use reliability.

In the female socket, the fool-proof ribs are a plurality of cuboids arranged on the inner wall surface of the socket, and the size of the cuboid and/or the distance between the cuboids inside each socket are different.

A plurality of cuboids arranged on the inner wall surface of the socket are used as fool-proof convex ribs and are distinguished through the sizes and the distances of the cuboids. Due to the design, the fool-proof function is realized, the structure is still simple, die-casting is convenient, and compared with a complex fool-proof structure, the processing cost is saved.

In the female socket, a plurality of third cavities for isolating adjacent sockets are formed in the body, and the third cavities penetrate through the body.

The provision of a third cavity between adjacent sockets has the following advantages: firstly, extra elasticity can be provided for the socket, and the labor is saved when an operator inserts and pulls the male rubber shell; secondly, when the terminal is used as a pin of the power supply, a larger current needs to pass, the mutual influence caused by the current between the terminals is stronger, and the electromagnetic isolation material can be filled in the third cavity, so that the mutual influence of the terminals between different male rubber shells is reduced; and thirdly, the third cavity is formed on the body, so that the material consumption can be reduced to a certain extent, and the cost is saved.

In the female socket, fixing plates for fixing the male rubber shell are respectively formed on the opposite surfaces of the insertion openings, and fixing openings are formed in the fixing plates.

Such design makes public gluey shell install the back on the socket of female socket, can carry out the locking to public gluey shell through fixed mouthful, prevents that public gluey shell from droing, has increased female socket and even waterproof connector's connection steadiness.

In the above-mentioned female socket, be provided with the spacing groove that is used for installing waterproof pad on the body, the spacing groove sets up socket place face, the spacing groove is one will all the socket is around the annular groove wherein.

Female socket and outside panel installation back through set up waterproof pad in the spacing groove position, can prevent external environment from causing the influence to it with socket and public gluey shell complete protection inside equipment to female socket has even promoted the life of waterproof connector.

In the female socket, the body is further formed with a plurality of limiting openings, one side of each limiting opening is communicated with the limiting groove, the other side of each limiting opening extends to the edge of the body, and the depth of each limiting opening is the same as that of the corresponding limiting groove.

Through setting up spacing opening, match with the waterproof pad of corresponding structure, not only can realize avoiding its slip and aversion to the spacing of waterproof pad, can also be at female socket and outside panel mounting back, need not dismantle and can follow the outside and observe to confirm that the waterproof pad has been installed and has been accomplished.

In the female socket, a first cavity is formed beside each first hole, and the number of the first cavities is not less than that of the first holes.

The setting of first cavity can increase the elasticity in first hole on the one hand, ensures smooth and easy of terminal plug process, and on the other hand can practice thrift certain material, reduces manufacturing cost.

The waterproof connector comprises the female socket, a male rubber shell, a plurality of male terminals and female terminals, wherein the number of the male rubber shell is consistent with that of the jacks, the male rubber shell is matched with that of the first holes, the male terminals are matched with the first holes, and the number of the female terminals is consistent with that of the male terminals.

The male rubber shell comprises a shell body, and a plurality of second holes are formed in the position, matched with the first holes, of the shell body.

The shell is embedded into the outer surface of one end of the socket, fool-proof convex ribs matched with the fool-proof convex ribs are formed on the outer surface of one end of the shell, and the fool-proof convex ribs formed on each male rubber shell are different.

The waterproof connector can be combined into modules, and the number of the terminals of the waterproof connector can be adjusted by inserting different numbers of the male rubber shells, so that the function expansion of the connector becomes possible. And through setting up the fool-proof bead of diverse, match with the fool-proof protruding muscle of difference, can prevent public gluey shell misplug by very big degree, reduce waterproof connector's installation, use risk.

In the waterproof connector, fixing parts are respectively formed at the positions where the male plastic shell is matched with the fixing plate, and the fixing parts are fixedly connected to the opposite sides of the shell.

The fixing part comprises an accommodating cavity enclosed by an accommodating shell and a movable part with one end fixed on the accommodating shell; the movable piece is provided with a fixed protrusion matched with the fixed opening, and the movable piece is suitable for extending out of the accommodating cavity under the condition of not bearing external force and realizing the clamping of the fixed protrusion at the fixed opening.

One end of the moving part is fixed on the accommodating shell, and the other end of the moving part can move freely. When the public shell of gluing is installed or is dismantled to needs, can manual inwards press the moving part, because the moving part material has certain elasticity, the moving part can be acceptd into the holding chamber under the exogenic action this moment, and fixed arch also can break away from fixed mouthful to realize the separation of public shell of gluing and female socket.

In the waterproof connector, a handle is formed at one end of the movable piece, which is far away from the accommodating shell, and an anti-skid device is arranged on the surface of the handle.

The handle is arranged at the end part of the movable part, and the anti-skid device is arranged on the surface of the movable part, so that the movable part can be pulled by an operator with less force, and the convenience in mounting and dismounting the waterproof connector is improved.

In the waterproof connector, a second cavity is formed beside each second hole, and the number of the second cavities is not less than the number of the second holes.

The setting of second cavity can increase the elasticity in second hole on the one hand, ensures the smooth and easy of terminal plug process, and on the other hand can practice thrift certain material, reduces manufacturing cost.

In the waterproof connector, the waterproof connector further comprises a waterproof pad, the waterproof pad comprises a gasket and a plurality of limiting bulges fixedly connected to the gasket, the gasket is matched with the limiting grooves in position and shape, and the limiting bulges are matched with the limiting openings in position and shape.

Female socket and outside panel installation back through set up waterproof pad in the spacing groove position, can prevent external environment from causing the influence to it with socket and public gluey shell complete protection inside equipment to waterproof connector's life has been promoted. Through setting up spacing opening, match with the waterproof pad of corresponding structure, not only can realize avoiding its slip and aversion to the spacing of waterproof pad, can also be at female socket and outside panel mounting back, need not dismantle and can follow the outside and observe to confirm that the waterproof pad has been installed.

The waterproof connector further comprises waterproof rings, the number of the waterproof rings is consistent with that of the male rubber shells, waterproof grooves are formed in the surfaces, inserted into the socket parts, of the shells of the male rubber shells, and the waterproof rings are installed in the waterproof grooves.

Through setting up waterproof circle, can further protect the terminal not influenced by external environment, and insert the part of socket at the casing with waterproof circle setting, also can avoid exposing waterproof circle in external environment, promoted waterproof circle's life.

In the waterproof connector, a space for accommodating a waterproof plug is formed in one side, away from the female socket, of the shell of the male rubber shell, and a plurality of third holes matched with the second holes in position are formed in the waterproof plug.

Through setting up waterproof stopper, can further promote the waterproof performance of connector, promote the stability in use of connector.

Compared with the prior art, the technical scheme of the invention has the following advantages:

according to the female socket and the waterproof connector, one female socket can be matched with a plurality of male rubber shells, the number of the mounted male rubber shells can be adjusted according to the self requirement, a small number of male rubber shells can be mounted when too many functions are not needed in the prior period, and when the number of terminals cannot meet the functional requirement, the male rubber shells can be additionally mounted on the female socket, so that the number of terminals is increased, and the functional expansion is realized.

And, a female socket can match a plurality of public shells of gluing, can equally divide a plurality of public shells of gluing with terminal quantity, and every public terminal quantity that glues the shell and corresponds reduces the back, required external force when also having reduced waterproof connector and dismantling has promoted its use convenience.

Besides, the fool-proof convex ribs are arranged in each jack, the situation that different public rubber shells are mistakenly inserted when the public rubber shells are installed is avoided, the terminal connection dislocation caused by the mistaken insertion of the public rubber shells is prevented, the working strength of operators is reduced, and the use reliability of the waterproof connector is greatly improved.

Drawings

In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the present disclosure taken in conjunction with the accompanying drawings, in which:

fig. 1 is an exploded view of the waterproof connector according to the preferred embodiment of the present invention;

FIG. 2 is a schematic view of the female socket according to the preferred embodiment of the present invention;

FIG. 3 is a schematic view of the structure shown at another angle in FIG. 2;

FIG. 4 is a schematic view of the waterproof pad according to the preferred embodiment of the present invention;

FIG. 5 is a schematic structural view of the male rubber shell in the preferred embodiment of the invention;

FIG. 6 is an enlarged view of portion A of FIG. 5;

FIG. 7 is a schematic view of the structure of FIG. 5 at another angle;

fig. 8 is a schematic structural view showing a combined state of the waterproof connector according to the preferred embodiment of the present invention after the male and female terminals are removed.

The reference numbers in the figures denote: 1-female socket, 10-body, 11-socket, 111-foolproof convex rib, 112-fixing plate, 113-fixing port, 12-limiting groove, 13-limiting notch, 14-third cavity, 15-first hole, 16-first cavity, 2-male rubber shell, 20-shell, 21-fixing part, 211-containing shell, 212-containing cavity, 213-moving part, 214-fixing protrusion, 215-handle, 22-waterproof groove, 23-foolproof convex rib, 24-second hole, 25-second cavity, 3-male terminal, 4-female terminal, 5-waterproof plug, 51-third hole, 6-waterproof ring, 7-waterproof pad, 71-gasket and 72-limiting protrusion.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 8, which are preferred embodiments of the present invention, a waterproof connector capable of module combination is disclosed in this embodiment. The waterproof connector comprises a female socket 1 serving as a female rubber shell, a plurality of male rubber shells 2, a plurality of male terminals 3, a plurality of female terminals 4, a plurality of waterproof plugs 5, a plurality of waterproof rings 6 and a waterproof pad 7.

The female socket 1 comprises a body 10, at least two inserting holes 11 for inserting the male rubber shell 2 are formed in the body 10, and a plurality of first holes 15 for inserting the male terminals 3 are formed in one ends, far away from the male rubber shell 2, of the inserting holes 11. In this embodiment, the insertion opening 11 is a rectangular-like groove surrounded by a plurality of plate-like members protruding from the body 10. Further, the number of the sockets 11 is two.

A plurality of fool-proof convex ribs 111 matched with the structure of the male rubber shell 2 are formed inside the socket 11, and each fool-proof convex rib 111 inside the socket 11 is different from each other. Further, the fool-proof ribs 111 are arranged on the inner wall surface of the socket 11 in four directions. Further, the fool-proof ribs 111 are a plurality of cuboids arranged on the inner wall surface of the socket 11, and the size of each cuboid and/or the distance between the cuboids inside the socket 11 are different.

In the present embodiment, the number of the fool-proof ribs 111 provided on the two long sides in the inner wall surface of each socket 11 is the same, but the number of the fool-proof ribs 111 provided on the two long sides in the inner wall surface of different sockets 11 is different. Further, five fool-proof ribs 111 are formed on two long edges of the inner wall surface of the first socket 11, and six fool-proof ribs 111 are formed on two long edges of the inner wall surface of the second socket 11. Due to the design, an operator can easily distinguish the sockets 11 corresponding to different male rubber shells 2, so that the misplugging is prevented.

In this embodiment, a plurality of third cavities 14 for isolating the adjacent sockets 11 are formed on the body 10, and the third cavities 14 penetrate through the body 10. Fixing plates 112 for fixing the male rubber shell 2 are respectively formed on the opposite surfaces of the insertion opening 11, and fixing openings 113 are formed on the fixing plates 112.

The body 10 is provided with a limiting groove 12 for installing the waterproof pad 7, the limiting groove 12 is arranged on the surface where the socket 11 is located, and the limiting groove 12 is an annular groove which surrounds the socket 11. In this embodiment, a plurality of limiting notches 13 are further formed on the body 10, one side of each limiting notch 13 is communicated with the corresponding limiting groove 12, the other side of each limiting notch 13 extends to the edge of the body 10, and the depth of each limiting notch 13 is the same as that of the corresponding limiting groove 12. In this embodiment, the number of the limiting notches 13 is four, and the four limiting notches 13 are symmetrically arranged on opposite sides of the body 10 in pairs.

First cavities 16 are formed beside each first hole 15, and the number of the first cavities 16 is not less than the number of the first holes 15. In this embodiment, each of the sockets 11 has two rows of twenty-eight total first holes 15 and three rows of forty-two total first cavities 16.

In this embodiment, screw holes are formed at four corners of the female socket 1 for mounting to an external panel.

The number of the male rubber shell 2 is consistent with that of the sockets 11, the male rubber shell 2 is matched with the sockets 11 in shape, the male rubber shell 2 comprises a shell body 20, and a plurality of second holes 24 are formed in the positions, matched with the first holes 15, of the shell body 20. The outer surface of one end of the shell 20 extending into the socket 11 is formed with a fool-proof rib 23 matching with the fool-proof rib 111, and the fool-proof ribs 23 formed on each male rubber shell 2 are different from each other.

In this embodiment, fixing portions 21 are respectively formed at the positions where the male plastic shell 2 is fitted to the fixing plate 112, and the fixing portions 21 are fixedly connected to the opposite sides of the housing 20. The fixing portion 21 includes a receiving cavity 212 surrounded by a receiving housing 211, and a movable member 213 having one end fixed to the receiving housing 211; a fixing protrusion 214 adapted to the fixing opening 113 is formed on the movable element 213, and the movable element 213 is adapted to extend out of the accommodating cavity 212 without bearing an external force and to realize that the fixing protrusion 214 is clamped at the fixing opening 113. Further, a handle 215 is formed at one end of the movable piece 213 away from the accommodating shell 211, and an anti-slip device is arranged on the surface of the handle 215.

In this embodiment, a second cavity 25 is formed beside each of the second holes 24, and the number of the second cavities 25 is not less than the number of the second holes 24. In the present embodiment, the number of the second cavities 25 is equal to the number of the second holes 24.

In this embodiment, the male terminal 3 is adapted to the first hole 15, the female terminal 4 is equal to the male terminal 3 in number, the waterproof ring 6 is equal to the male rubber shell 2 in number, and the waterproof plug 5 is equal to the male rubber shell 2 in number.

The surface of the part of the male rubber shell 2, which is inserted into the socket 11, of the shell 20 is formed with a waterproof groove 22, and the waterproof ring 6 is installed in the waterproof groove 22. A space for accommodating a waterproof plug 5 is formed on one side, away from the female socket 1, of the shell 20 of the male rubber shell 2, and a plurality of third holes 51 matched with the second holes 24 in position are formed in the waterproof plug 5.

The waterproof pad 7 comprises a gasket 71 and a plurality of limiting bulges 72 fixedly connected to the gasket 71, the gasket 71 is matched with the limiting grooves 12 in position and shape, and the limiting bulges 72 are matched with the limiting openings 13 in position and shape. In this embodiment, the number of the limiting protrusions 72 is four.

In other embodiments, the number of the sockets 11 may also be three, and the arrangement of the three sockets 11 may be a triangular arrangement or a row. Correspondingly, if three sockets 11 are arranged in a triangle, the number of the third cavities 14 is three; if three of the sockets 11 are arranged in a row, the number of the third cavities 14 is two.

In other embodiments, the number of the sockets 11 may also be four, and the arrangement of the four sockets 11 may be a square arrangement or a row. Correspondingly, if four sockets 11 are arranged in a square shape, the number of the third cavities 14 is four; if four of the sockets 11 are arranged in a row, the number of the third cavities 14 is three.

In other embodiments, the number of the inserting holes 11 may also be five, six or more, accordingly, a plurality of the inserting holes 11 also have a plurality of arrangements, and the number of the third cavities 14 also can be adjusted according to the change of the number and the arrangement of the inserting holes 11.

In other embodiments, the socket 11 may also be a circular groove, an oval groove, a square groove, a regular hexagon groove, or other shapes surrounded by the plate-shaped member, and correspondingly, the structural shape of the male plastic shell 2 also needs to be adjusted, and the layout of the fool-proof rib 111 also needs to be adjusted, but the adjustment does not affect the implementation of the design object of the present invention.

In other embodiments, the number of the fool-proof ribs 111 disposed on the two long sides of the inner wall surfaces of the sockets 11 may be other values, and the purpose of preventing the mis-insertion can be achieved as long as it is ensured that the number of the fool-proof ribs 111 disposed on the two long sides of the inner wall surfaces of each socket 11 is the same, and the number of the fool-proof ribs 111 disposed on the two long sides of the inner wall surfaces of different sockets 11 is different.

In other embodiments, the third cavity 14 may not extend through the body 10.

In other embodiments, the number of the limiting notches 13 may be one, two, three, five or more, the arrangement of the limiting notches 13 may also be adjusted at will, the adjustment of the number and the position does not affect the achievement of the design purpose of the present invention, and it is only necessary to ensure that the number and the position of the limiting protrusions 72 are consistent with the limiting notches 13.

In other embodiments, the number of the first holes 15 and the first cavities 16 provided on each of the sockets 11 can be adjusted as occasion demands. Accordingly, the number of the second holes 24 and the second cavities 25 provided in each of the male rubber cases 2 and the number of the third holes 51 provided in each of the waterproof plugs 5 can be adjusted accordingly.

In other embodiments, the depth of the limiting gap 13 and the limiting groove 12 can be different.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the spirit or scope of the invention.

Claims

1. A female socket (1) used as a female rubber shell of an electric connector, wherein the female socket (1) comprises a body (10), and is characterized in that at least two jacks (11) for inserting a male rubber shell (2) are formed on the body (10), and a plurality of first holes (15) for inserting male terminals (3) are formed at one ends of the jacks (11) far away from the male rubber shell (2); a plurality of fool-proof convex ribs (111) matched with the structure of the male rubber shell (2) are formed inside the insertion openings (11), and the fool-proof convex ribs (111) inside each insertion opening (11) are different;

the socket (11) is a rectangular groove surrounded by a plurality of plate-shaped pieces protruding out of the body (10), and foolproof ribs (111) are arranged in four directions of the inner wall surface of the socket (11); the fool-proof convex ribs (111) are a plurality of cuboids arranged on the inner wall surfaces of the sockets (11), and the sizes of the cuboids and/or the distances between the cuboids in each socket (11) are different; the number of the fool-proof convex ribs (111) arranged on the two long edges in the inner wall surface of each socket (11) is the same, but the number of the fool-proof convex ribs (111) arranged on the two long edges in the inner wall surface of different sockets (11) is different;

the body (10) is provided with a plurality of third cavities (14) for isolating adjacent sockets (11) and filling with electromagnetic isolation materials, and the third cavities (14) penetrate through the body (10).

2. The female jack (1) according to claim 1, wherein the opposite faces of the insertion opening (11) are respectively formed with a fixing plate (112) for fixing the male rubber housing (2), and a fixing opening (113) is formed in the fixing plate (112).

3. Female socket (1) according to claim 2, wherein the body (10) is provided with a retaining groove (12) for mounting a waterproof gasket (7), the retaining groove (12) is arranged on the surface of the socket (11), and the retaining groove (12) is an annular groove surrounding all the sockets (11).

4. The female socket (1) according to claim 3, wherein the body (10) is further formed with a plurality of limiting slits (13), one side of each limiting slit (13) is communicated with the limiting groove (12), the other side of each limiting slit extends to the edge of the body (10), and the depth of each limiting slit (13) is the same as that of the limiting groove (12).

5. Female socket (1) according to claim 4, wherein a first cavity (16) is formed beside each first hole (15), the number of first cavities (16) being not less than the number of first holes (15).

6. A waterproof connector capable of modular combination comprising the female socket (1) as claimed in claim 4 or 5, characterized by further comprising a male rubber case (2) in a number and shape corresponding to the number of the insertion openings (11), a plurality of male terminals (3) in a number corresponding to the first holes (15), and female terminals (4) in a number corresponding to the number of the male terminals (3);

the male rubber shell (2) comprises a shell (20), and a plurality of second holes (24) are formed in the positions, matched with the first holes (15), of the shell (20);

the outer surface of one end of the shell (20) extending into the socket (11) is provided with a fool-proof convex rib (23) matched with the fool-proof convex rib (111), and the fool-proof convex ribs (23) formed on each male rubber shell (2) are different.

7. The waterproof connector according to claim 6, wherein fixing portions (21) are respectively formed at the positions where the male rubber housing (2) is matched with the fixing plate (112), and the fixing portions (21) are fixedly connected to the opposite sides of the housing (20);

the fixing part (21) comprises an accommodating cavity (212) enclosed by an accommodating shell (211) and a movable piece (213) with one end fixed on the accommodating shell (211); and a fixed protrusion (214) matched with the fixed port (113) is formed on the movable piece (213), and the movable piece (213) is suitable for extending out of the accommodating cavity (212) under the condition of not bearing external force and realizing the clamping of the fixed protrusion (214) at the fixed port (113).

8. The watertight connector according to claim 7, characterized in that a handle (215) is formed at an end of the movable member (213) remote from the receiving housing (211), and an anti-slip means is provided on a surface of the handle (215).

9. The watertight connector according to claim 8, characterized in that a second cavity (25) is formed beside each of the second holes (24), and the number of the second cavities (25) is not less than the number of the second holes (24).

10. The waterproof connector according to any one of claims 7 to 9, characterized by further comprising a waterproof gasket (7), wherein the waterproof gasket (7) comprises a gasket (71) and a plurality of limiting protrusions (72) fixedly connected to the gasket (71), the gasket (71) is matched with the limiting groove (12) in position and shape, and the limiting protrusions (72) are matched with the limiting openings (13) in position and shape.

11. The waterproof connector according to any one of claims 7 to 9, characterized by further comprising a waterproof ring (6) in accordance with the number of the male rubber housing (2), wherein a waterproof groove (22) is formed on the surface of the portion of the male rubber housing (2) where the housing (20) is inserted into the socket (11), and the waterproof ring (6) is installed in the waterproof groove (22).

12. The waterproof connector according to any one of claims 7 to 9, characterized in that a space for accommodating a waterproof plug (5) is formed on the side of the housing (20) of the male plastic shell (2) away from the female socket (1), and a plurality of third holes (51) matched with the positions of the second holes (24) are formed on the waterproof plug (5).