CN109473820B - Locking mechanism and locking method of interlocking connector - Google Patents

Abstract

The invention relates to a locking mechanism and a locking method of an interlocking connector, which solve the problems that the existing locking mechanism is unreliable and easy to release, the locking and unlocking operations are complex, and the operation is inconvenient. The locking mechanism comprises a plug shell, a slide lock and a socket shell, wherein the plug shell is in butt joint with the socket shell, the slide lock is slidably arranged on the plug shell, and the socket shell is locked or separated from the plug shell through the slide lock. The invention further provides a locking method of the locking mechanism. The locking mechanism is simple, convenient and reliable, improves the reliability of the connector after butt joint, has a simple operation method, can realize the locking and unlocking of the connector in a shorter time, and saves time.

Description

Locking mechanism and locking method of interlocking connector

Technical Field

The invention relates to the technical field of locking devices of electric connectors, in particular to a locking mechanism and a locking method of an interlocking connector.

Background

At present, in the field of high-voltage connectors of electric automobiles, the vehicle-mounted high-current connector is affected by vibration of the automobile, and the reliability of circuit connection is directly affected by locking and fixing of the connector after butt joint. The existing locking mechanism is unreliable and easy to release, and is complex in locking and unlocking operation and inconvenient to operate.

Disclosure of Invention

The invention aims to provide a locking mechanism and a locking method of an interlocking connector, which are simple in structure, convenient and reliable.

In order to achieve the above purpose, the present invention adopts the following technical scheme: a locking mechanism of an interlocking connector comprises a plug housing, a slide lock and a socket housing, wherein the plug housing is in butt joint with the socket housing, the slide lock is slidably arranged on the plug housing, and the socket housing is locked or separated from the plug housing by the slide lock.

Further, the plug shell comprises a plug shell body, an elastic body, a first support plate, a second support plate, a first sliding rail and a second sliding rail, wherein the elastic body comprises a suspension plate, a pressing handle, a first support column and a second support column, the first support column and the second support column are vertically fixed on the upper surface of a butt joint end of the plug shell body and a socket shell body, the rear ends of the first support column and the second support column are connected with the pressing handle, the front end of the pressing handle and the suspension plate are respectively provided with a gap with the top end surface of the plug shell body, the suspension plate and the pressing handle form a lever mechanism taking the first support column and the second support column as fulcra, the front end of the suspension plate is provided with a left clamping groove and a right clamping groove, a positioning groove is formed in the middle position of the front end of the left clamping groove and the right clamping groove, the left side and the right side of the suspension plate are respectively provided with the first support plate and the second support plate, the first sliding rail is arranged on the first support plate, and the second sliding rail is arranged on the second support plate;

further, the slide lock comprises an n-shaped slide lock body, a first sliding block and a second sliding block which are matched with the sliding rail of the plug shell are arranged at the lower ends of vertical plates at two sides of the slide lock body, a downward protruding jack post is arranged on the lower surface of a top plate of the slide lock body, the jack post is matched with a positioning groove of the hanging plate, the first sliding block and the second sliding block are respectively and slidably arranged in the first sliding rail and the second sliding rail, when the slide lock and the plug shell slide forwards and are in an unlocking state, the first sliding block and the second sliding block respectively reach the limit of the first sliding rail and the second sliding rail, the jack post and the hanging plate are separated from each other and are arranged in front of the hanging plate, and when the slide lock and the plug shell slide backwards and are in a locking state, the bottom end of the jack post falls into the positioning groove.

Further, the socket housing comprises a socket housing body, a first clamping hook and a second clamping hook are arranged on the top surface of a butt joint end of the socket housing body, which is in butt joint with the plug housing, the positions of the first clamping hook and the second clamping hook are corresponding to the positions of the left clamping groove and the right clamping groove respectively, the butt joint end of the socket housing body is inserted into a gap between the plug housing body and the hanging plate, when the plug housing is in butt joint locking state with the socket housing, the first clamping hook and the second clamping hook fall into the left clamping groove and the right clamping groove of the hanging plate respectively, and when the plug housing is in separation state with the socket housing, the first clamping hook and the second clamping hook are separated from the left clamping groove and the right clamping groove respectively.

Further, the top plate upper surface of the slide lock body is provided with a poking part, the poking part is an arc surface bent upwards from the plane of the top plate, and a plurality of shallow grooves for increasing friction are formed in the arc surface.

Further, the shapes of the first clamping hook and the second clamping hook are the same, the sections are right trapezoid shapes, the right angle surface perpendicular to the top surface of the socket shell is used for clamping the left clamping groove and the right clamping groove, and the inclined surface is used for guiding the front end of the cantilever plate to tilt upwards.

Further, the first sliding rail and the second sliding rail are same in shape and are slotted in long-strip shape, the length of the first sliding rail is longer than that of the first sliding block, and the length of the second sliding rail is longer than that of the second sliding block.

Further, the section of the top column is rectangular, the front side and the rear side of the lower end face of the top column are chamfered, the depth of the positioning groove is slightly lower than the upper surface of the cantilever plate, and the top column falls into the positioning groove to limit the tilting of the cantilever plate.

Further, the first sliding block is arranged on the inner side or the outer side of the vertical plate of the sliding lock body, and the second sliding block is arranged on the inner side or the outer side of the vertical plate of the sliding lock body.

The invention further provides a locking method of the locking mechanism of the interlocking connector, which is realized according to the following steps:

(1) Locking:

firstly, enabling the sliding lock and the plug shell to be in an unlocking state, wherein the specific operation method is that the sliding lock is slid forwards, the first sliding block and the second sliding block are respectively arranged at the forefront ends of the first sliding rail and the second sliding rail, a top column of the sliding lock is not contacted with the cantilever plate and is arranged in front of the cantilever plate, at the moment, the sliding lock and the plug shell are in an unlocking state, and the sliding lock is in an unlocking position;

then inserting the butt joint end of the socket shell into a gap between the cantilever plate and the top end surface of the plug shell body, leading the front end of the cantilever plate to be tilted upwards by a first clamping hook and a second clamping hook on the socket shell body at the moment, continuing to insert, enabling the first clamping hook and the second clamping hook to respectively reach the left clamping groove and the right clamping groove of the cantilever plate, enabling the front end of the cantilever plate to fall back by elasticity, enabling the left clamping groove and the right clamping groove to respectively cover the first clamping hook and the second clamping hook, enabling the sliding lock to slide backwards until a top column falls into a positioning groove at the moment, enabling the sliding lock to be in a locking position, and enabling an integral mechanism among the plug shell, the socket shell and the sliding lock to be locked at the moment;

(2) Unlocking:

firstly, sliding the sliding lock forwards to enable the first sliding block and the second sliding block to be respectively arranged at the forefront ends of the first sliding rail and the second sliding rail, at the moment, a jacking column of the sliding lock slides down from the cantilever plate and does not contact with the cantilever plate, the sliding lock and the plug shell are in an unlocking state, and the sliding lock is in an unlocking position;

then the pressing handle is pressed to enable the front end of the cantilever plate to be tilted to a height higher than the top ends of the first clamping hook and the second clamping hook, the pressing handle is pressed at the moment and is not moved, and meanwhile the plug shell is pulled out backwards, so that unlocking of the whole mechanism can be completed.

Compared with the prior art, the invention has the beneficial effects that: the locking mechanism is simple, convenient and reliable, improves the reliability of the connector after butt joint, has a simple operation method, can realize the locking and unlocking of the connector in a shorter time, and saves time.

Drawings

FIG. 1 is a schematic view of the structure of the present invention, also in a locked state;

FIG. 2 is a schematic diagram of an unlocked state of the present invention;

FIG. 3 is a cross-sectional view of FIG. 2;

fig. 4 is a schematic structural view of the plug housing;

FIG. 5 is a schematic view of the structure of the slide lock;

FIG. 6 is a schematic structural view of a toggle portion of the slide lock;

fig. 7 is a schematic structural view of the socket housing;

FIG. 8 is a schematic view of the mounting structure of the plug housing and slide lock, also in an unlocked state;

FIG. 9 is a locked state diagram of the plug housing and the slide lock;

fig. 10 is a schematic view of the mounting structure of the plug housing, slide lock and socket housing, and is also a partial schematic view of the unlocked state of the overall mechanism;

FIG. 11 is a partial schematic view of the plug housing and receptacle housing in a locked, slide lock unlocked state;

FIG. 12 is a partial schematic view of the overall mechanism locking of the plug housing, receptacle housing and slide lock;

FIG. 13 is a schematic view of a slide lock structure in which a slider is placed outside a vertical plate, also in embodiment 2;

parts and numbers in the figure:

1-a plug housing; 10-a plug housing body; 11-an elastomer; 111-cantilever plates; 112-pressing the handle; 113-a first leg; 114-a second leg; 115-upper guide ramp; 116-lower guide ramp; 12-positioning grooves; 131-left clamping groove; 132-right card slot; 141-a first support plate; 142-a second support plate; 151-a first slide rail; 152-a second slide rail;

2-sliding lock; 21-a slide lock body; 21-1-vertical plates; 21-2-top plate; 211-a first slider; 212-a second slider; 22-top column; 23-a toggle part; 231-shallow grooves;

3-a socket housing; 31-a socket housing body; 311-a first clamping hook; 312-second hook;

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

Referring to fig. 1 to 3, a locking mechanism of an interlock connector includes a plug housing 1, a slide lock 2, and a socket housing 3, wherein the plug housing 1 is abutted with the socket housing 3, the slide lock 2 is slidably mounted on the plug housing 1, and the socket housing 2 is locked to or separated from the plug housing 1 by the slide lock 2.

Referring to fig. 4, the plug housing 1 includes a plug housing body 10, an elastic body 11, a first support plate 141, a second support plate 142, a first slide rail 151 and a second slide rail 152, the elastic body 11 includes a cantilever plate 111, a pressing handle 112, a first support column 113 and a second support column 114, the first support column 113 and the second support column 114 are vertically fixed on the upper surface of the butt end of the plug housing body 10 butt-jointed with the socket housing 2, the rear ends of the first support column 113 and the second support column 114 are connected with the pressing handle 112, the front ends of the pressing handle 112 and the cantilever plate 111, a gap is formed between the cantilever plate 111 and the pressing handle 112 and the top end surface of the plug housing body 10, the cantilever plate 111 and the pressing handle 112 form a lever mechanism taking the first support column 113 and the second support column 114 as fulcra, the front end of the cantilever plate 111 is provided with a left clamping groove 131 and a right clamping groove 132, the middle positions of the front ends of the left clamping groove 131 and the right clamping groove 132 are respectively provided with a positioning groove 12, the left side and the right side of the cantilever plate 111 are respectively provided with the first support plate 141 and the second support plate 142, the first support plate 141 and the second slide rail 152 are provided with the second slide rail 152;

referring to fig. 5 and 6, the slide lock 2 includes an n-shaped slide lock body 21, a first sliding block 211 and a second sliding block 212 matched with the slide rail of the plug housing are provided at the lower ends of the vertical plates 21-1 at both sides of the slide lock body 21, a downward protruding top column 22 is provided at the lower surface of the top plate 21-2 of the slide lock body 21, the top column 22 is matched with the positioning groove 12 of the cantilever plate 111, the first sliding block 211 and the second sliding block 212 are slidably mounted in the first sliding rail 151 and the second sliding rail 152, respectively, when the slide lock 2 and the plug housing 1 slide forward and are in the unlocked state, the first sliding block 211 and the second sliding block 212 reach the limit positions of the first sliding rail 151 and the second sliding rail 152, respectively, the top column 22 and the cantilever plate 111 are separated from the front of the cantilever plate 111, and when the slide lock 2 and the plug housing 1 slide backward and are in the locked state, the bottom end of the top column 22 falls into the positioning groove 12.

Referring to fig. 7, the socket housing 3 includes a socket housing body 31, a first hook 311 and a second hook 312 are disposed on a top surface of a butt end of the socket housing body 31, which is butt-jointed with the plug housing, the positions of the first hook 311 and the second hook 312 correspond to the positions of the left slot 131 and the right slot 132, respectively, the butt end of the socket housing body 31 is inserted into a gap between the plug housing body 10 and the cantilever plate 111, when the plug housing 1 is in a butt-locked state with the socket housing 2, the first hook 311 and the second hook 312 fall into the left slot 131 and the right slot 132 of the cantilever plate 111, respectively, and when the plug housing 1 is in a separated state with the socket housing 2, the first hook 311 and the second hook 312 are separated from the left slot 131 and the right slot 132, respectively.

Referring to fig. 6, a toggle portion 23 is provided on the upper surface of the top plate 21-2 of the slide lock body 21, the toggle portion 23 is an arc surface that is bent upward from the top plate plane, and a plurality of shallow grooves 231 for increasing friction are provided on the arc surface.

The first slider 211 is disposed on the inner side or the outer side of the slide lock body vertical plate, and the second slider 212 is disposed on the inner side or the outer side of the slide lock body vertical plate (the inner side in the present embodiment).

Referring to fig. 7, the first hook 311 and the second hook 312 have the same shape, the cross section is in a right trapezoid shape, right angle edges perpendicular to the top surface of the socket housing in the right trapezoid are used for clamping the left clamping groove and the right clamping groove, and the inclined plane is used for guiding the front end of the cantilever plate to tilt upwards.

Referring to fig. 5, the first sliding rail 151 and the second sliding rail 152 have the same shape, and are elongated slots, and the length of the first sliding rail 151 is longer than the length of the first slider 211, and the length of the second sliding rail 152 is longer than the length of the second slider 212.

The cross section of the top column 22 is rectangular, and the front and rear sides of the lower end face of the top column 22 are chamfered. The position of the top post 22 corresponds to the positions of the first slider 211 and the second slider 212 in the first slide rail 151 and the second slide rail 152, and when the first slider 211 and the second slider 212 are at the forefront end in the first slide rail 151 and the second slide rail 152, the top post 22 is disengaged from the cantilever plate 111; the first slider 211 and the second slider 212 slide backward, the top post 22 can prop against the front end of the cantilever plate 11, and when the top post 22 slides backward to approach the tail ends of the first sliding rail 151 and the second sliding rail 152, the end face of the top post 22 is just trapped in the positioning groove 12.

The depth of the positioning groove 12 is slightly lower than the upper surface of the cantilever plate 111, and the positioning post 22 falls into the positioning groove 12 to limit the cantilever plate 111 from tilting.

Referring to fig. 9, upper and lower guide inclined surfaces 115 and 116 are respectively provided at the upper and lower surfaces of the front end of the cantilever plate 111, the upper guide inclined surface 115 is used for guiding the jack post 12 to slide in, and the lower guide inclined surface 116 is used for guiding the first and second hooks 311 and 312 of the socket body 3 to slide in.

The invention further provides a locking method of the locking mechanism of the interlocking connector, which is realized according to the following steps:

(1) Locking:

firstly, the sliding lock 2 and the plug housing 1 are in an unlocking state, the specific operation method is that the sliding lock 2 is slid forwards, the first sliding block 211 and the second sliding block 212 are respectively arranged at the forefront ends of the first sliding rail 151 and the second sliding rail 152, the top column 22 of the sliding lock 2 is not contacted with the cantilever plate 111 and is arranged in front of the cantilever plate 111, at the moment, the sliding lock 2 and the plug housing 1 are in an unlocking state, the sliding lock 2 is in an unlocking position, and the unlocking position structure is shown in fig. 8;

then, the butt end of the socket shell 3 is inserted into a gap between the cantilever plate 111 and the top end surface of the plug shell body 10, at the moment, the front end of the cantilever plate 111 is led to be tilted upwards by the first clamping hook 311 and the second clamping hook 312 on the socket shell body 31, the first clamping hook 311 and the second clamping hook 312 respectively reach the left clamping groove 131 and the right clamping groove 132 of the cantilever plate 111, the front end of the cantilever plate 111 falls back by elasticity, the left clamping groove 131 and the right clamping groove 132 are respectively sleeved on the first clamping hook 311 and the second clamping hook 312 (refer to fig. 11), at the moment, the sliding lock 2 is slid backwards into the top column 22 and falls into the positioning groove 12, the sliding lock 2 is in a locking position, at the moment, the whole mechanism among the plug shell 1, the socket shell 3 and the sliding lock 2 is locked, and the locking state diagram refers to fig. 12;

(2) Unlocking:

first, the slide lock 2 is slid forward, so that the first slider 211 and the second slider 212 are respectively at the forefront ends of the first slide rail 151 and the second slide rail 152, at this time, the top post 22 of the slide lock 2 slides down from the cantilever plate 111 and does not contact with the cantilever plate 111, the slide lock 2 and the plug housing 1 are in an unlocked state, and the slide lock 2 is in an unlocked position (refer to fig. 11);

then, the pressing handle 112 is pressed to enable the front end of the cantilever plate 111 to be tilted up to a height higher than the top ends of the first clamping hook 311 and the second clamping hook 312, at the moment, the pressing handle 112 is pressed to be still, and meanwhile, the plug shell 1 is pulled out backwards, so that unlocking of the whole mechanism can be completed.

Example 2

Referring to fig. 13, the difference from embodiment 1 is that the first slider 211 is placed outside the slide lock body vertical plate 21-1, and the second slider 212 is placed outside the slide lock body vertical plate 21-1.

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

Claims (5)

1. The locking mechanism of the interlocking connector is characterized by comprising a plug shell, a slide lock and a socket shell, wherein the plug shell is in butt joint with the socket shell, the slide lock is slidably arranged on the plug shell, and the socket shell and the plug shell are locked or separated by the slide lock before each other;

the plug shell comprises a plug shell body, an elastic body, a first support plate, a second support plate, a first sliding rail and a second sliding rail, wherein the elastic body comprises a suspension plate, a pressing handle, a first support column and a second support column, the first support column and the second support column are vertically fixed on the upper surface of a butt joint end of the plug shell body and the socket shell, the rear ends of the first support column and the second support column are connected with the pressing handle, the front end of the pressing handle and the suspension plate are respectively provided with a gap with the top end surface of the plug shell body, the suspension plate and the pressing handle form a lever mechanism taking the first support column and the second support column as supporting points, the front end of the suspension plate is provided with a left clamping groove and a right clamping groove, a positioning groove is formed in the middle position of the front end of the left clamping groove and the right clamping groove, the left side and the right side of the suspension plate are respectively provided with the first support plate and the second support plate, the first sliding rail is arranged on the first support plate, and the second sliding rail is arranged on the second support plate;

the sliding lock comprises an n-shaped sliding lock body, a first sliding block and a second sliding block which are matched with a sliding rail of a plug shell are arranged at the lower ends of vertical plates at two sides of the sliding lock body, a downward protruding jacking column is arranged on the lower surface of a top plate of the sliding lock body and matched with a positioning groove of a cantilever plate, the first sliding block and the second sliding block are respectively and slidably arranged in the first sliding rail and the second sliding rail, when the sliding lock and the plug shell slide forwards and are in an unlocking state, the first sliding block and the second sliding block respectively reach the limit of the first sliding rail and the second sliding rail, the jacking column and the cantilever plate are separated from each other and are arranged in front of the cantilever plate, and when the sliding lock and the plug shell slide backwards and are in a locking state, the bottom end of the jacking column falls into the positioning groove;

the socket shell comprises a socket shell body, a first clamping hook and a second clamping hook are arranged on the top surface of a butt joint end of the socket shell body, which is in butt joint with the plug shell, the positions of the first clamping hook and the second clamping hook correspond to the positions of a left clamping groove and a right clamping groove respectively, the butt joint end of the socket shell body is inserted into a gap between the plug shell body and the hanging plate, when the plug shell is in butt joint locking state with the socket shell body, the first clamping hook and the second clamping hook fall into the left clamping groove and the right clamping groove of the hanging plate respectively, and when the plug shell body is in separation state with the socket shell body, the first clamping hook and the second clamping hook are separated from the left clamping groove and the right clamping groove respectively;

the upper surface of the top plate of the slide lock body is provided with a poking part, the poking part is an arc surface which is bent upwards from the plane of the top plate, and a plurality of shallow grooves for increasing friction are arranged on the arc surface;

the shapes of the first clamping hook and the second clamping hook are the same, the sections are right trapezoid shapes, the right angle surface perpendicular to the top surface of the socket shell is used for clamping the left clamping groove and the right clamping groove, and the inclined surface is used for guiding the front end of the cantilever plate to tilt upwards.

2. The locking mechanism of claim 1, wherein the first and second rails are identical in shape and are elongated slots, and the first rail has a length longer than the first slider and the second rail has a length longer than the second slider.

3. The locking mechanism of claim 1, wherein the top post has a rectangular cross section, the front and rear sides of the lower end surface of the top post are chamfered, the depth of the positioning groove is slightly lower than the upper surface of the cantilever plate, and the top post falls into the positioning groove to limit the tilting of the cantilever plate.

4. The locking mechanism of claim 1, wherein the first slider is disposed on the inside or outside of the slide lock body vertical plate and the second slider is disposed on the inside or outside of the slide lock body vertical plate.

5. A locking method of the locking mechanism of the interlock connector according to any one of claims 1 to 4, which is implemented by the steps of:

(1) Locking:

firstly, enabling the sliding lock and the plug shell to be in an unlocking state, wherein the specific operation method is that the sliding lock is slid forwards, the first sliding block and the second sliding block are respectively arranged at the forefront ends of the first sliding rail and the second sliding rail, a top column of the sliding lock is not contacted with the cantilever plate and is arranged in front of the cantilever plate, at the moment, the sliding lock and the plug shell are in an unlocking state, and the sliding lock is in an unlocking position;

then inserting the butt joint end of the socket shell into a gap between the cantilever plate and the top end surface of the plug shell body, leading the front end of the cantilever plate to be tilted upwards by a first clamping hook and a second clamping hook on the socket shell body at the moment, continuing to insert, enabling the first clamping hook and the second clamping hook to respectively reach the left clamping groove and the right clamping groove of the cantilever plate, enabling the front end of the cantilever plate to fall back by elasticity, enabling the left clamping groove and the right clamping groove to respectively cover the first clamping hook and the second clamping hook, enabling the sliding lock to slide backwards until a top column falls into a positioning groove at the moment, enabling the sliding lock to be in a locking position, and enabling an integral mechanism among the plug shell, the socket shell and the sliding lock to be locked at the moment;

(2) Unlocking:

firstly, sliding the sliding lock forwards to enable the first sliding block and the second sliding block to be respectively arranged at the forefront ends of the first sliding rail and the second sliding rail, at the moment, a jacking column of the sliding lock slides down from the cantilever plate and does not contact with the cantilever plate, the sliding lock and the plug shell are in an unlocking state, and the sliding lock is in an unlocking position;

then the pressing handle is pressed to enable the front end of the cantilever plate to be tilted to a height higher than the top ends of the first clamping hook and the second clamping hook, the pressing handle is pressed at the moment and is not moved, and meanwhile the plug shell is pulled out backwards, so that unlocking of the whole mechanism can be completed.