CN115332874B

CN115332874B - Waterproof connector easy to insert and pull out and mounting and dismounting method thereof

Info

Publication number: CN115332874B
Application number: CN202211263935.XA
Authority: CN
Inventors: 朱锋; 梁鸿毅
Original assignee: Hong Ru Connectors Co ltd
Current assignee: Guangdong Hongru Technology Co ltd
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2023-01-20
Anticipated expiration: 2042-10-17
Also published as: CN115332874A

Abstract

The utility model provides an easy waterproof connector of plug and installation, dismantlement method, waterproof connector's female rubber casing lateral part is fixed to be provided with first ear fastener, and first ear fastener takes shape to have the first holding chamber that is suitable for second ear fastener to place, and second ear fastener is suitable for to rotate for first ear fastener in first holding intracavity. The second ear fastener comprises a body and a protruding part arranged on the body, and the protruding part is suitable for applying pushing force far away from the direction of the female rubber shell to the male rubber shell when the second ear fastener rotates towards a certain direction. The waterproof connector and the mounting and dismounting method thereof provided by the invention have the advantages of convenience in mounting and dismounting and good sealing property.

Description

Waterproof connector easy to insert and pull out and mounting and dismounting method thereof

Technical Field

The invention relates to the technical field of electric connectors, in particular to a waterproof connector easy to plug and pull and an installation and disassembly method thereof.

Background

A connector is a component that is frequently touched by electrical engineers for carrying out the passage of current between a blocked or isolated circuit within the circuit to cause 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. The connector of prior art, when increasing connection fastening nature, also increased the required external force when connector installation and dismantlement, even the connector can directly assemble through the machine when the installation, nevertheless still need manual handling when the connector is dismantled, especially through the use of a period of time, the connector inner structure warp, oxidation scheduling problem, can cause the connector to dismantle the time need bigger external force. This problem is not obvious when pin (public terminal) number is less, but when pin number exceeded 20, the connector had been hardly dismantled through self strength to the workman of normal strength, and along with the promotion of pin number, the dismantlement degree of difficulty of connector was bigger and bigger.

Disclosure of Invention

The invention aims to solve the technical problem that the connector in the prior art is inconvenient to disassemble, and provides a waterproof connector convenient to disassemble and an assembling and disassembling method thereof.

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

an easy-to-plug waterproof connector comprises a male rubber shell and a female rubber shell which are matched with each other, and further comprises a female terminal and a male terminal which are respectively inserted into the male rubber shell and the female rubber shell, wherein the female terminal and the male terminal are matched with each other;

a first ear fastener is fixedly arranged on the side part of the shell body of the mother rubber shell, a first accommodating cavity suitable for accommodating a second ear fastener is formed in the first ear fastener, and the second ear fastener is suitable for rotating relative to the first ear fastener in the first accommodating cavity;

the second ear fastener comprises a body and a protruding part arranged on the body, and the protruding part is suitable for applying thrust far away from the direction of the female rubber shell to the male rubber shell when the second ear fastener rotates towards a certain direction.

In the waterproof connector, a circular groove is formed in the first accommodating cavity, a rotating shaft is formed in the position, corresponding to the groove, of the second ear fastener, and the second ear fastener is suitable for rotating around the axis of the rotating shaft relative to the first ear fastener.

Such design through mutually supporting in pivot and groove, can guarantee the stability of second ear fastener rotation process, prevents to take place to drop at installation, dismantlement and rotation process second ear fastener, has increased waterproof connector's stability in use.

In the waterproof connector, the rotating shaft is located on one side of the body close to the protruding portion.

Due to the design, when the waterproof connector is detached, the length of the handheld end from the rotating shaft is greater than that of the protruding portion from the rotating shaft, and based on the lever principle, the pushing force output by the protruding portion is greater than the external force required to be input by the handheld end. The separation of the female rubber shell and the male rubber shell can be realized by using smaller external force input.

In the waterproof connector, two circular grooves which are coaxially designed are formed in the first accommodating cavity, and two rotating shafts which respectively correspond to the grooves are arranged on the second ear fastener; and a slope is formed at the position of the rotating shaft, which is back to the opening direction of the first accommodating cavity.

The two coaxially designed grooves and the matched rotating shaft can further increase the use stability of the waterproof connector. The setting on slope can make operating personnel only need very little strength can install into first holding chamber with second ear fastener. The slope sets up the opening direction in first holding chamber dorsad at the pivot simultaneously for after the pivot gets into the groove, be difficult to take place reverse movement, avoided second ear fastener's the proper motion to drop.

In the waterproof connector, a slide rail for guiding the second ear fastener to enter is formed in the first accommodating cavity, a slide block is formed at a position of the second ear fastener corresponding to the slide rail, and the slide block is positioned on one side of the rotating shaft away from the protruding part.

Such design, when installation second ear fastener, can let the slider get into along the slide rail direction, need not carry out accurate aiming when operating personnel installs to waterproof connector installation process required work load has been reduced. Simultaneously, the slider is located the pivot is kept away from one side of bellying for the slider can not influence the normal work of pivot, has also avoided when the installation because technical staff misoperation leads to the possibility of getting the slider mounting groove into, has reduced the possibility of maloperation.

In the waterproof connector, the first accommodating cavity is internally provided with two sliding rails, and the second ear fastener is provided with two sliding blocks corresponding to the sliding rails respectively; an inclined plane is formed on the sliding block, and a reset bulge matched with the inclined plane is formed on the sliding rail.

The design of two sets of slide rails and slider for waterproof connector is more stable when the installation. After the installation of second ear fastener is accomplished, need rotate around the pivot, the event is through setting up the inclined plane for the slider can not become and influence its pivoted hindrance. However, after the second ear fastener is rotated, the second ear fastener needs to be restored as soon as possible, so that the restoring protrusion is arranged at the corresponding position on the slide rail. After external force disappears, the sliding block can return to the preset position in the sliding rail under the reset pushing of the reset protrusion, so that the second ear fastener is driven to reset.

In the waterproof connector, a third cavity is formed on the body and is arranged along the plane of the rotation direction of the second ear fastener.

Through setting up the third cavity, increased the elasticity of second ear fastener, before the pivot gets into the groove to and when the slider left preset position, the third cavity all can realize certain springiness cushioning, required external force when reducing personnel's operation has promoted waterproof connector's use convenience. Meanwhile, the third cavity is added, so that materials can be saved to a certain extent, and the cost is reduced.

In the waterproof connector, a boss is fixedly arranged on the side portion of a male rubber shell body of the male rubber shell, a second accommodating cavity suitable for accommodating the boss to enter is formed in the first ear fastener, and the boss is suitable for bearing the thrust of the protruding portion when the second ear fastener rotates towards a certain direction and driving the male rubber shell to move towards the direction far away from the female rubber shell.

Through setting up the boss for the promotion external force of bellying does not have direct action on public gluey shell casing, has avoided huge thrust to the deformation that public gluey shell casing caused, has reduced the possibility of public gluey shell damage, also can not be because the waterproof effect of waterproof circle on the public gluey shell of external force influence, has promoted waterproof connector's life.

In the waterproof connector, a buckling bulge is formed at one end, far away from the mother rubber shell, of the boss, a buckling boss is formed at one end, far away from the bulge, of the second ear fastener, and the buckling boss is suitable for being in contact with the buckling bulge and locking the buckling bulge when the second ear fastener rotates to a specified position.

Such design, after public gluey shell and the installation of female gluey shell are accomplished, utilize the protruding structural feature of lock and lock boss for the lock boss is when protruding locking of counterpoint lock, and the thrust towards female gluey shell direction is applyed to the lock arch to the continuation nature, has realized the fastening connection of public gluey shell and female gluey shell.

In the waterproof connector, the two first ear fasteners are arranged on the mother rubber shell body of the mother rubber shell, the two first ear fasteners are arranged symmetrically to the center line of the mother rubber shell, and the number of the second ear fasteners and the number of the bosses are also two.

Set up two sets of first ear fastener, second ear fastener and boss for operating personnel can both hands concurrent operation when the operation, when increasing input external force, has also ensured whole waterproof connector's moment balance, makes its translation process can not take place to rotate and the card dies, and the removal process is more stable.

In the waterproof connector, a waterproof groove is formed on the surface of the male rubber shell inserted into the female rubber shell, and a waterproof ring is arranged on the waterproof groove.

Through setting up waterproof groove and waterproof circle, can increase waterproof connector's water-proof effects, and insert waterproof groove setting at public gluey shell female gluey shell portion can prevent that waterproof circle from exposing for a long time and producing ageing in external environment, has increased waterproof connector's life and waterproof stability.

In the waterproof connector, a plurality of first holes for inserting the male terminals are formed in the female rubber shell, and a first cavity is formed beside each first hole; and a plurality of second holes for inserting the female terminals are formed in the male rubber shell, and a second cavity is formed beside each second hole.

Through setting up first cavity and second cavity on first hole, second hole next door, increased the use elasticity of public gluey shell and female gluey shell, especially public terminal and female terminal plug in-process, public gluey shell and the increase of female gluey shell elasticity can reduce the external force of required input, have promoted waterproof connector's use convenience. Meanwhile, certain material cost can be saved.

In the waterproof connector, the outer surface of the male rubber shell inserted into the female rubber shell is formed with a fool-proof rib, and a fool-proof groove is formed at the position of the female rubber shell matched with the fool-proof rib.

Because waterproof connector requires highly to the grafting order of public terminal and female terminal, so need prevent that public gluey shell and female gluey shell grafting direction from appearing the mistake, increase the design of preventing slow-witted rib and preventing slow-witted groove, can prevent to the at utmost that the misplug to operating personnel when the installation from appearing the wrong possibility has been reduced.

The mounting method of the waterproof connector comprises the steps of S1-S4;

the step S1: inserting the second ear fastener into the first accommodating cavity, and enabling the second ear fastener to rotate around the rotating shaft;

the step S2: installing the waterproof ring into the waterproof groove, inserting the male terminal into the appointed position of the female rubber shell, and inserting the female terminal into the appointed position of the male rubber shell;

the step S3: inserting the male rubber shell into the female rubber shell, and ensuring that the boss is inserted into the second accommodating cavity;

the step S4: and rotating the second ear fastener to enable the buckling lug bosses to rotate to the designated positions, so that the buckling lug bosses are locked by the buckling bulges.

Aiming at the waterproof connector, by the installation method, the working strength of operators during installation can be greatly simplified, and the installation convenience of the waterproof connector is improved.

The disassembling method of the waterproof connector comprises the steps of S5-S8;

the step S5: the second ear fastener is broken off, so that the second ear fastener rotates around the rotating shaft, and the buckling lug boss is separated from the buckling bulge and is released from locking the buckling bulge;

the step S6: the second ear fastener continuously rotates, the boss is contacted with the boss, and thrust in the direction away from the mother rubber shell is applied to the boss;

the step S7: under the action of a lever principle, the male rubber shell is separated from the female rubber shell under the action of the pushing force, and the male terminal is separated from the female terminal;

the step S8: under the effect of the reset protrusion, the sliding block returns to the normal position of the sliding rail, and at the moment, the second ear fastener rotates back to the preset position.

Aiming at the waterproof connector, the separation of the male terminal and the female terminal can be realized under the condition of using very small external force input by the dismounting method, and even under the condition that the number of pin pins (male terminals) exceeds 20 or more, the separation of the male terminal and the female terminal can be realized without too large external force input, so the operation is very convenient.

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

a first ear fastener is fixedly arranged on the side portion of a female rubber shell of the waterproof connector, a first accommodating cavity suitable for accommodating a second ear fastener is formed in the first ear fastener, and the second ear fastener is suitable for rotating relative to the first ear fastener in the first accommodating cavity. The second ear fastener comprises a body and a protruding part arranged on the body, and the protruding part is suitable for applying pushing force far away from the direction of the female rubber shell to the male rubber shell when the second ear fastener rotates towards a certain direction. Utilize lever principle, the straight line pulling force that needs when dismantling the connector changes into moment of rotation, required external force when having reduced the connector and dismantling has promoted the convenient degree of connector installation, dismantlement process.

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 embodiments of the present disclosure taken in conjunction with the accompanying drawings, in which

FIG. 1 is a schematic view of the assembled state of the connector according to the preferred embodiment of the present invention;

FIG. 2 is a schematic diagram of the connector in a disassembled state according to the preferred embodiment of the present invention;

FIG. 3 is an exploded view of the connector of the preferred embodiment of the present invention with the male and female terminals removed;

FIG. 4 is a schematic view of the preferred embodiment of the present invention with the second ear fastener removed from the shell;

FIG. 5 is a schematic view of the structure of FIG. 4 at another angle;

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

FIG. 7 is a schematic view of the second ear fastener component of the preferred embodiment of the invention;

fig. 8 is an enlarged view of portion B of fig. 7;

fig. 9 is a schematic structural view of the male rubber shell in the preferred embodiment of the invention.

The reference numbers in the figures denote: 1-a female rubber shell, 10-a female rubber shell body, 101-a first hole, 102-a first cavity, 103-a foolproof groove, 11-a first ear fastener, 111-a groove, 112-a first accommodating cavity, 113-a second accommodating cavity, 114-a slide rail, 115-a reset protrusion, 12-a second ear fastener, 120-a body, 121-a protrusion, 122-a rotating shaft, 123-a handle, 124-a buckling boss, 125-a third cavity, 126-a slide block, 127-an inclined plane, 2-a male rubber shell, 20-a male rubber shell body, 201-a waterproof groove, 202-a second hole, 203-a second cavity, 21-a boss, 211-a buckling protrusion, 22-a foolproof rib, 3-a male terminal, 4-a waterproof ring, 5-a waterproof plug, and 51-a third hole.

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. 1-9, is a preferred embodiment of the present invention. The embodiment discloses waterproof connector of easy plug, waterproof connector is including the public shell 2 and the female shell 1 of gluing of mutually supporting, still including inserting respectively public shell 2 of gluing female terminal and the male terminal 3 of gluing shell 1, female terminal with the male terminal 3 mutually supports.

In this embodiment, the waterproof connector further comprises a waterproof ring 4 and a waterproof plug 5. Furthermore, the waterproof ring 4 is provided with four waterproof edges, and the waterproof plug 5 is provided with three waterproof edges. In other embodiments, the number of the waterproof ribs of the waterproof ring 4 and the waterproof plug 5 may be other values as long as the waterproof effect can be ensured.

The female rubber shell 1 comprises a female rubber shell body 10, a plurality of first holes 101 for inserting the male terminals 3 are formed in the female rubber shell body 10, and a first cavity 102 is formed beside each first hole 101. In this embodiment, the male terminals 3 are pin pins, the number of the male terminals 3 is 24, and the male terminals are arranged in two rows, so that the number of the first holes 101 is 24, and the male terminals are arranged in two rows, the number of the first cavities 102 is 36, and the first cavities 102 are respectively disposed between the two rows of the male terminals 3 and at two sides of the male terminals. Further, the first hole 101 is a through hole, and the first cavity 102 is not a through hole.

The side of the shell 10 is fixedly provided with a first ear fastener 11, the first ear fastener 11 is formed with a first accommodating cavity 112 suitable for accommodating a second ear fastener 12, and the second ear fastener 12 is suitable for rotating relative to the first ear fastener 11 in the first accommodating cavity 112.

The second ear fastening member 12 comprises a body 120 and a protrusion 121 disposed on the body 120, wherein the protrusion 121 is adapted to apply a pushing force to the male plastic shell 2 in a direction away from the female plastic shell 1 when the second ear fastening member 12 rotates in a certain direction. In this embodiment, the protrusion 121 is disposed at one end of the body 120, a fastening boss 124 and a handle 123 are formed at one end of the second ear fastening member 12 away from the protrusion 121, and an anti-slip surface is formed on the surface of the handle 123. Further, a third cavity 125 is formed in the body 120, and the third cavity 125 is disposed along the plane of the second ear fastening member 12 in the rotation direction.

In this embodiment, a circular groove 111 is formed in the first receiving cavity 112, a rotating shaft 122 is formed at a position of the second ear fastening member 12 corresponding to the groove 111, and the second ear fastening member 12 is adapted to rotate around an axis of the rotating shaft 122 relative to the first ear fastening member 11. Further, the rotating shaft 122 is located on a side of the body 120 close to the protruding portion 121.

Furthermore, two circular grooves 111 with coaxial design are formed in the first accommodating cavity 112, and two rotating shafts 122 corresponding to the grooves 111 respectively are arranged on the second ear fastening piece 12; and a slope is formed at a position of the rotating shaft 122 facing away from the opening direction of the first accommodating cavity 112.

In this embodiment, a sliding rail 114 for guiding the second ear fastening part 12 to enter is formed in the first receiving cavity 112, a sliding block 126 is formed at a position of the second ear fastening part 12 corresponding to the sliding rail 114, and the sliding block 126 is located at a side of the rotating shaft 122 away from the protruding portion 121.

Furthermore, two slide rails 114 are formed in the first receiving cavity 112, and two slide blocks 126 corresponding to the slide rails 114 are disposed on the second ear fastening part 12; the slide block 126 is formed with an inclined surface 127, and the slide rail 114 is formed with a return protrusion 115 matching with the inclined surface 127.

The male plastic shell 2 comprises a male plastic shell body 20, a plurality of second holes 202 for inserting the female terminals are formed on the male plastic shell body 20, and a second cavity 203 is formed beside each second hole 202. The number of the female terminals is the same as that of the male terminals 3, so that the number of the second holes 202 is 24 and the second holes are arranged in two rows, and the number of the second cavities 203 is 24. Further, the second hole 202 is a through hole, and the second cavity 203 is not a through hole.

In this embodiment, a waterproof groove 201 is formed on the surface of the part of the male rubber shell 2 inserted into the female rubber shell 1, and the waterproof ring 4 is installed on the waterproof groove 201. Further, a space for accommodating the waterproof plug 5 is formed on one side of the male rubber case body 20 away from the female rubber case 1, a plurality of third holes 51 matched with the second holes 202 in position are formed on the waterproof plug 5, and the female terminals are inserted into the third holes 51 and the second holes 202.

The lateral part of the male plastic shell 20 is fixedly provided with a boss 21, a second accommodating cavity 113 suitable for accommodating the boss 21 is formed in the first ear fastener 11, and the boss 21 is suitable for bearing the thrust of the protruding part 121 when the second ear fastener 12 rotates towards a certain direction and drives the male plastic shell 2 to move towards the direction far away from the female plastic shell 1.

In this embodiment, a fastening protrusion 211 is formed at an end of the boss 21 away from the shell 1, and the fastening protrusion 124 is adapted to contact with the fastening protrusion 211 and lock the fastening protrusion 211 when the second ear fastening member 12 is rotated to a predetermined position.

In this embodiment, the outer surface of the part of the male rubber shell 2 inserted into the female rubber shell 1 is formed with a fool-proof rib 22, and a fool-proof groove 103 is formed at the position of the female rubber shell 1 matched with the fool-proof rib 22. In other embodiments, the positions of the fool-proof ribs 22 and the fool-proof slots 103 can be interchanged, or other fool-proof methods can be adopted, such as asymmetric housing shapes, etc., which do not affect the achievement of the design objective of the present invention. In other embodiments, the fool-proof ribs 22 and the fool-proof grooves 103 may not even be provided, and the waterproof connector does not have the fool-proof function but does not affect the achievement of the design object of the present invention.

In this embodiment, the first ear fastener 11 is provided with two on the masterbatch shell body 10 of masterbatch shell 1, two first ear fastener 11 is symmetrical to the central line setting of masterbatch shell 1, second ear fastener 12, the quantity of boss 21 also is two. In other embodiments, the number of the first ear fastening member 11, the second ear fastening member 12 and the boss 21 can be one, four or other numbers, so long as the number of the first ear fastening member 11, the second ear fastening member 12 and the boss 21 is consistent, and even if the number is changed in a non-optimal way, the design purpose of the present invention can still be achieved.

The installation method of the waterproof connector comprises the steps S1-S4.

The step S1: inserting the second ear fastening member 12 into the first receiving cavity 112, and enabling the second ear fastening member 12 to rotate around the rotation axis 122;

the step S2: installing the waterproof ring 4 into the waterproof groove 201, inserting the male terminal 3 into a specified position of the female rubber shell 1, and inserting the female terminal into a specified position of the male rubber shell 2;

the step S3: inserting the male rubber shell 2 into the female rubber shell 1, and ensuring that the boss 21 is inserted into the second accommodating cavity 113;

the step S4: the second ear fastener 12 is rotated to rotate the fastening boss 124 to a predetermined position, so that the fastening boss 124 locks the fastening protrusion 211.

In this embodiment, a step of "installing the waterproof plug 5 into the male rubber shell 2" is further included between the step S1 and the step S2.

The disassembling method of the waterproof connector comprises the steps S5-S8.

The step S5: the second ear fastening member 12 is broken to rotate the second ear fastening member 12 around the rotation axis 122, and the engaging protrusion 124 is disengaged from the engaging protrusion 211 and releases the locking of the engaging protrusion 211;

the step S6: the second ear fastening piece 12 rotates continuously, the convex part 121 is contacted with the boss 21, and a pushing force in a direction away from the masterbatch housing 1 is applied to the boss 21;

the step S7: under the action of a lever principle, the male rubber shell 2 is separated from the female rubber shell 1 under the action of the pushing force, and the male terminal 3 is separated from the female terminal;

the step S8: under the action of the reset protrusion 115, the sliding block 126 returns to the normal position of the sliding track 114, and the second ear fastener 12 rotates back to the predetermined position.

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. An easy-to-plug waterproof connector comprises a male rubber shell (2) and a female rubber shell (1) which are matched with each other, and further comprises a female terminal and a male terminal (3) which are respectively inserted into the male rubber shell (2) and the female rubber shell (1), wherein the female terminal and the male terminal (3) are matched with each other;

the novel ear clip is characterized in that the male terminal (3) is a pin needle, a first ear fastener (11) is fixedly arranged on the side portion of a female rubber shell body (10) of the female rubber shell (1), a first accommodating cavity (112) suitable for accommodating a second ear fastener (12) is formed in the first ear fastener (11), and the second ear fastener (12) is suitable for rotating relative to the first ear fastener (11) in the first accommodating cavity (112);

the second ear fastener (12) comprises a body (120) and a lug boss (121) arranged on the body (120), wherein the lug boss (121) is suitable for applying a pushing force to the male rubber shell (2) in a direction away from the female rubber shell (1) when the second ear fastener (12) rotates towards a certain direction;

a circular groove (111) is formed in the first accommodating cavity (112), a rotating shaft (122) is formed at a position of the second ear fastener (12) corresponding to the groove (111), and the second ear fastener (12) is suitable for rotating around the axis of the rotating shaft (122) relative to the first ear fastener (11); the rotating shaft (122) is positioned on one side of the body (120) close to the convex part (121);

a sliding rail (114) for guiding the second ear fastener (12) to enter is formed in the first accommodating cavity (112), a sliding block (126) is formed at a position of the second ear fastener (12) corresponding to the sliding rail (114), and the sliding block (126) is positioned on one side of the rotating shaft (122) far away from the protruding part (121); an inclined plane (127) is formed on the sliding block (126), and a reset protrusion (115) matched with the inclined plane (127) is formed on the sliding rail (114).

2. The watertight connector according to claim 1, characterized in that two circular grooves (111) of coaxial design are formed in the first housing cavity (112), and the second ear fastener (12) is provided with two rotation shafts (122) corresponding to the grooves (111), respectively; and a slope is formed at the position of the rotating shaft (122) back to the opening direction of the first accommodating cavity (112).

3. The waterproof connector according to claim 2, wherein two sliding rails (114) are formed in the first receiving cavity (112), and two sliding blocks (126) corresponding to the sliding rails (114) are disposed on the second ear fastener (12).

4. A watertight connector as claimed in claim 3, characterized in that a third cavity (125) is formed in the body (120), said third cavity (125) being arranged in the plane of the rotation direction of the second ear piece (12).

5. The waterproof connector according to claim 4, wherein a boss (21) is fixedly arranged on a side portion of a male rubber housing body (20) of the male rubber housing (2), a second accommodating cavity (113) into which the boss (21) enters is formed inside the first ear fastener (11), and the boss (21) is adapted to bear the thrust of the protrusion portion (121) and drive the male rubber housing (2) to move in a direction away from the female rubber housing (1) when the second ear fastener (12) rotates in a certain direction.

6. The waterproof connector according to claim 5, wherein a latching projection (211) is formed at an end of the boss (21) remote from the mother case (1), and a latching projection (124) is formed at an end of the second ear clip member (12) remote from the projection (121), the latching projection (124) being adapted to contact with the latching projection (211) and lock the latching projection (211) when the second ear clip member (12) is rotated to a predetermined position.

7. The waterproof connector according to claim 6, wherein two first ear fasteners (11) are arranged on the female shell body (10) of the female shell (1), the two first ear fasteners (11) are arranged symmetrically to the center line of the female shell (1), and the number of the second ear fasteners (12) and the number of the bosses (21) are also two.

8. The waterproof connector according to claim 7, characterized in that a waterproof groove (201) is formed on the surface of the part of the male rubber shell (2) inserted into the female rubber shell (1), and a waterproof ring (4) is arranged on the waterproof groove (201).

9. The waterproof connector according to claim 7, characterized in that the female rubber housing (1) is formed with a plurality of first holes (101) for inserting the male terminals (3), and a first cavity (102) is formed beside each of the first holes (101); a plurality of second holes (202) for inserting the female terminals are formed in the male rubber shell (2), and a second cavity (203) is formed beside each second hole (202).

10. The waterproof connector according to claim 7, characterized in that the outer surface of the part of the male rubber shell (2) inserted into the female rubber shell (1) is formed with a fool-proof rib (22), and the female rubber shell (1) is formed with a fool-proof groove (103) at the position matched with the fool-proof rib (22).

11. A method of installing the waterproof connector according to claim 8, comprising steps S1, S2, S3 and S4;

the step S1: inserting the second ear fastener (12) into the first receiving cavity (112) and enabling the second ear fastener (12) to rotate around the rotating shaft (122);

the step S2: installing the waterproof ring (4) into the waterproof groove (201), inserting the male terminal (3) into a specified position of the female rubber shell (1), and inserting the female terminal into a specified position of the male rubber shell (2);

the step S3: inserting the male rubber shell (2) into the female rubber shell (1) and ensuring that the boss (21) is inserted into the second accommodating cavity (113);

the step S4: the second ear fastener (12) is rotated to enable the buckling lug boss (124) to rotate to a specified position, and the buckling lug boss (124) locks the buckling bulge (211).

12. A method of dismounting a watertight connector according to any one of claims 7 to 10, comprising steps S5, S6, S7 and S8;

the step S5: the second ear fastener (12) is broken to rotate the second ear fastener (12) around the rotating shaft (122), and the buckling boss (124) is disengaged from the buckling bulge (211) and releases the locking of the buckling bulge (211);

the step S6: the second ear fastener (12) continuously rotates, the lug boss (121) is contacted with the boss (21), and thrust in a direction away from the masterbatch shell (1) is applied to the boss (21);

the step S7: under the action of a lever principle, the male rubber shell (2) is separated from the female rubber shell (1) under the action of the pushing force, and the male terminal (3) is separated from the female terminal;

the step S8: under the action of the reset protrusion (115), the sliding block (126) returns to the normal position of the sliding rail (114), and at the moment, the second ear fastener (12) rotates back to the preset position.