CN210074307U

CN210074307U - Locking mechanism for quick connection of plug and socket of electric connector

Info

Publication number: CN210074307U
Application number: CN201920862390.1U
Authority: CN
Inventors: 吴洪
Original assignee: Sichuan Yonggui Science and Technology Co Ltd
Current assignee: Sichuan Yonggui Science and Technology Co Ltd
Priority date: 2019-06-10
Filing date: 2019-06-10
Publication date: 2020-02-14
Anticipated expiration: 2029-06-10

Abstract

The utility model discloses a locking mechanism for the quick connection of an electric connector plug and a socket, which is provided with a handle shell, a movable block and a spring plate, wherein the lower part of the spring plate is fixed on the handle shell, the upper part of the spring plate is limited by the handle shell, the spring plate can be deformed, the movable block is fixedly connected with the end part of the upper part of the spring plate, and the movable block is provided with a guiding arc line; the shell fragment makes the hand (hold) casing can rotate for connecting the position on the socket with the equal swing joint of hand (hold) casing, has the locking pin on the plug, and rotatory hand (hold) casing makes the movable block under the guide effect of guide pitch arc reach the locking effect on the locking pin, and locking state exerts force to the movable block and makes the shell fragment warp, thereby the restriction unblock that the handle casing counter-rotation made the movable block break away from the locking pin simultaneously. The locking mechanism can realize quick connection and unlocking of the plug and the socket of the electric connector, has the function of preventing accidental loosening, and is not invalid after being used for a long time under severe conditions.

Description

Locking mechanism for quick connection of plug and socket of electric connector

Technical Field

The utility model belongs to the technical field of electric connector such as track traffic, wind power generation, industrial control and specifically relates to a locking mechanism that is used for rectangle heavy load electric connector plug and socket high-speed joint.

Background

The plug and the socket of the electric connector are directly connected without adopting other fixing measures, and are easy to accidentally loosen in severe cold, high temperature, accidental external force impact and other scenes. It is therefore necessary to design a locking mechanism that facilitates locking and unlocking.

SUMMERY OF THE UTILITY MODEL

The utility model provides a locking mechanism for electric connector plug and socket high-speed joint to realize the high-speed joint and the unblock of electric connector plug and socket. Meanwhile, the locking mechanism has the function of preventing accidental loosening, is suitable for the scenes of severe environment, such as high cold, high temperature, accidental external force impact and the like due to a special structure and material selection, and is particularly used for the electrical connection outside a vehicle and without other extra protective devices.

The utility model adopts the following technical scheme:

a locking mechanism for quickly connecting a plug and a socket of an electric connector comprises a handle shell, wherein both ends of the handle shell are provided with a movable block and an elastic sheet; the elastic sheet is in a bent shape, the lower part of the elastic sheet is fixed on the lower edge of one end of the handle shell, the upper part of the elastic sheet is limited by the upper edge of the same end of the handle shell, so that the elastic sheet can deform in a certain range, the movable block is fixedly connected with the end part of the upper part of the elastic sheet, and the lower edge of the movable block is provided with a guide arc line; the equal swing joint of lower part that the lower part of shell fragment and hand (hold) casing correspond makes the hand (hold) casing rotate for connecting the position on the socket, has the locking pin on the plug that matches with the socket, rotatory hand (hold) casing makes the movable block reach the locking effect on the locking pin under the guide effect of guide pitch arc, exerts force to the movable block under the locking state and makes the shell fragment warp, thereby the restriction unblock that the reverse rotation of hand (hold) casing made the movable block break away from the locking pin simultaneously.

Locking mechanical system is difficult to satisfy the actual demand to the locking force of plug and socket, consequently the utility model discloses lock two at least sides of plug and socket with two locking mechanical system cooperations.

Preferably, the handle shell is of a U-shaped structure with an opening facing left or right, so that one side face of the joint of the socket and the plug can be inserted into the U-shaped structure, the two sides of the socket and the plug are connected through two ends of the U-shaped structure, lugs are arranged on the upper edges of two ends of the U-shaped structure, clamping grooves are formed in the lugs, positioning steps are arranged on the lower edges of two ends of the lugs, rivets are arranged near the positioning steps, and the lower portion of the elastic sheet is fixed on the handle shell through the positioning steps and the rivets.

In order to have better holding feeling and protect the plug and the socket, the handle shell is provided with a plastic package piece convenient for holding, and the local part of the plastic package piece is wrapped on the part of the handle shell, which is easy to contact with the plug or the socket, so that the scratching is prevented.

The spring plate is in a U shape with an opening facing left or right, the upper edge of the spring plate is provided with a convex rib, and when force is applied to the movable block, the convex rib can move in the clamping groove but cannot be separated from the limit of the clamping groove.

The movable block is provided with two side vertical surfaces, the bottoms of the two side vertical surfaces are connected through the bottom with a guide arc line, an installation space is formed between the two side vertical surfaces, the end part of the upper part of the elastic sheet is embedded between the two side vertical surfaces, and the two side vertical surfaces of the movable block are fixedly connected with the end part of the upper part of the elastic sheet through rivets.

The lower edge of the upper part of the elastic sheet is provided with a chamfer which is in contact with the upper surface of the bottom of the movable block, and the movable block forms a negative angle in a locking state to prevent the locking mechanism from being unlocked accidentally.

The elastic sheet, the handle shell and the socket are movably connected in a mode that the elastic sheet and the handle shell are connected to the socket through the same pin.

The utility model provides a locking mechanism for quick connection of electric connector plug and socket can realize quick connection and unblock of electric connector plug and socket, promotes product assembly and maintenance efficiency; in addition, the locking mechanism needs to have the function of preventing accidental loosening and can be used for a long time without failure in the scenes of high cold, high temperature, accidental external force impact and the like.

Drawings

Fig. 1 is a state diagram of a locking mechanism locking a plug and a socket.

Fig. 2 is a schematic structural diagram of the locking mechanism.

Fig. 3 is a schematic structural view of the handle housing.

Fig. 4 is a schematic structural view of the elastic sheet.

Fig. 5 is a schematic structural diagram of the movable block.

In the figure, a plug 1, a locking pin 11, a locking mechanism 2, a socket 3, a fixed pin 31, a spring plate 21, a movable block 22, a spring plate rivet 23, a handle rivet 24, a handle shell 25, a handle plastic package 26, a spring plate large hole 211, a spring plate small hole 212, a spring plate convex rib 213, a spring plate chamfer 214, a movable block guiding arc line 221, a movable block small hole 222, a movable block force application point 223, a handle shell positioning step 251, a handle shell large hole 252, a handle shell small hole 253 and a handle shell clamping groove 254.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1, the plug 1 is a free end portion of the electrical connector, the socket 3 is a fixed end portion of the electrical connector, the locking mechanism 2 is a main body of the present invention, the plug 1 and the socket 3 are plugged together, and the locking mechanism 2 connects and fixes the two to prevent the two from loosening.

The lower part of the elastic sheet and the lower part corresponding to the handle shell are movably connected to the socket, so that the handle shell can rotate relative to the connection part, the movable connection is realized through a fixing pin 31 on the socket, holes (an elastic sheet big hole 211 and a handle shell big hole 252) are formed in the elastic sheet and the handle shell, and the elastic sheet and the handle shell are fixed to the socket through the fixing pin 31. The plug 1 is provided with a locking pin 11, and the handle shell is rotated to enable the movable block to be clamped on the locking pin 11 under the guiding action of the guiding arc line to achieve the locking effect; and applying force to the movable block in a locked state to deform the elastic sheet, and simultaneously enabling the movable block to be separated from the limit of the locking pin through the reverse rotation of the handle shell, so that unlocking is realized. The two locking mechanisms are matched to lock the front side and the rear side of the plug and the socket, the two locking mechanisms 2 are rotated towards the locking pin 11, the plug 1 and the socket 3 can be locked, and otherwise, the unlocking can be realized.

As shown in fig. 2, the locking mechanism 2 is composed of a spring 21, a movable block 22, a spring rivet 23, a handle rivet 24, a handle housing 25, and a handle plastic package 26. The handle rivet 24 serves to fix the resilient plate 21 in a specific position. Wherein, the spring plate 21 and the movable block 22 are fixed together by a spring plate rivet 23; the assembly consisting of the spring plate 21, the movable block 22 and the spring plate rivet 23 forms a complete locking mechanism 2 component through the handle rivet 24 and the handle shell 25.

The handle housing 25 serves as a support. The handle shell is of a U-shaped structure with an opening facing left or right, the upper edges of two ends of the handle shell are provided with lugs, handle shell clamping grooves 254 are arranged on the lugs, handle shell positioning steps 251 are arranged on the lower edges of two ends of the handle shell, handle rivets 24 are arranged near the positioning steps and are arranged at positions of small holes 253 of the handle shell, and the lower part of the elastic sheet is fixed on the handle shell by the positioning steps and the handle rivets. The two ends of the handle shell are both provided with the movable block 22 and the elastic sheet 21, the handle shell 25 is fixed on the socket 3, and the elastic sheet 21, the movable block 22, the elastic sheet rivet 23, the handle rivet 24 and the handle plastic package part 26 form a complete functional part. As shown in fig. 3, the handle housing 25 is composed of a handle housing positioning step 251, a handle housing large hole 252, a handle housing small hole 253, and a handle housing clamping groove 254. The handle shell positioning step 251 has the function of limiting the elastic sheet 21; the large hole 252 of the handle shell has the function of being assembled with the large hole 211 of the spring plate and the socket 2; the handle shell small hole 253 is assembled with the handle rivet 24 to limit the elastic sheet 21; the handle housing slot 254 is assembled with the resilient tab rib 213 to limit the resilient tab 21.

The handle plastic package part 26 is a plastic part, the local part of the plastic package part is wrapped on the part of the handle shell, which is easy to contact with a plug or a socket, and a part of the plastic package part forms a handle, so that the locking mechanism can be conveniently held by a hand to perform locking or unlocking actions, and the locking mechanism has the function of providing better hand feeling and preventing the electric connector from damaging the coating on the surface of the socket when being unlocked.

The spring plate 21 provides elasticity and locking force for the locking mechanism, so that the plug and the socket are connected together. As shown in fig. 4, the elastic sheet is a bent elastic sheet, and is shaped like a U with an opening facing left or right, the lower portion of the bent elastic sheet is fixed on the lower edge of one end of the handle housing, and the upper portion of the bent elastic sheet is limited by the upper edge of the same end of the handle housing, so that the elastic sheet can deform within a certain range. Specifically, the upper edge of the spring plate has a spring plate rib 213, the spring plate rib 213 is clamped in the handle housing slot 254, and when the movable block is applied with force, the spring plate rib 213 can move in the handle housing slot 254 without being separated from the limit of the slot. The spring plate 21 is also provided with a spring plate large hole 211, a spring plate small hole 212 and a spring plate chamfer 214. The spring plate big hole 211 is used for being assembled with the handle shell 25 and the socket 3; the spring plate small hole 212 is used for being assembled with the spring plate rivet 23 and the movable block small hole 222; the leaf spring rivet 23 plays a fixing role. The function of the spring plate ribs 213 is to cooperate with the handle housing slots 254 to prevent the spring plates from falling off from the side direction; the tab chamfer 214 is located on the lower edge of the upper portion of the tab and contacts the bottom upper surface of the movable block, and the tab chamfer 214 functions to form a negative angle with the movable block 22 to prevent accidental unlocking of the electrical connector.

The movable block 22 is a movable part and has guiding, fixing and anti-loose functions when the locking mechanism is locked. The movable block is provided with two side vertical surfaces, the bottoms of the two side vertical surfaces are connected through the bottom with a guide arc line, an installation space is formed between the two side vertical surfaces, the end part of the upper part of the elastic sheet is embedded between the two side vertical surfaces, and the two side vertical surfaces of the movable block are fixedly connected with the end part of the upper part of the elastic sheet through elastic sheet rivets. As shown in fig. 5, the movable block 22 is fixedly connected to the upper end of the spring 21, the lower edge of the movable block has a guiding arc 221, the movable block is further designed with a movable block small hole 222, which is used as a fixing hole of the spring rivet 23 together with the spring small hole 212 to form a fixed structure with the spring, and the force application point 223 of the movable block is exposed for manual unlocking. The function of the movable block guiding arc 221 is to provide guidance for the initial stage of locking of the locking mechanism 2, and to form a negative angle after the locking is terminated, thereby preventing accidental unlocking.

It is further right that the working principle of the present invention is described as follows: the electric connector consists of a plug 1, a locking pin 11, a locking mechanism 2, a socket 3 and a fixing pin 31; the locking mechanism 2 and the socket 3 form a functional part through a fixed pin 31; when the electric connector is connected, the locking mechanism 2 is rotated towards the locking pin 11, when the locking mechanism 2 is contacted with the locking pin 11, the movable block on the movable block 22 guides the arc line 221 to be contacted with the locking pin 11, extrusion and mutual rotation are formed between the movable block and the locking pin, the locking mechanism 2 is further rotated, the movable block 22 transmits extrusion force to the elastic sheet 21, the elastic sheet 21 generates elastic deformation under the extrusion force, and the counter-acting force of the extrusion force pushes the plug 1 to approach the socket 3; continuing to rotate the locking mechanism 2 until the locking mechanism cannot rotate, enabling the movable block guiding arc line 221 to be completely matched with the locking pin 11, and locking the plug 1 and the socket 3; meanwhile, due to the existence of the elastic piece chamfer 214, the movable block 22 finally has a certain negative angle, so that the purpose of preventing the plug 1 and the socket 3 from being unlocked accidentally is achieved.

Although the invention has been described herein with reference to the illustrated embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications may be made to the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure herein. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. A locking mechanism for quickly connecting a plug and a socket of an electric connector is characterized by comprising a handle shell, wherein both ends of the handle shell are provided with a movable block and an elastic sheet; the elastic sheet is in a bent shape, the lower part of the elastic sheet is fixed on the lower edge of one end of the handle shell, the upper part of the elastic sheet is limited by the upper edge of the same end of the handle shell, so that the elastic sheet can deform in a certain range, the movable block is fixedly connected with the end part of the upper part of the elastic sheet, and the lower edge of the movable block is provided with a guide arc line; the equal swing joint of lower part that the lower part of shell fragment and hand (hold) casing correspond makes the hand (hold) casing rotate for connecting the position on the socket, has the locking pin on the plug that matches with the socket, rotatory hand (hold) casing makes the movable block reach the locking effect on the locking pin under the guide effect of guide pitch arc, exerts force to the movable block under the locking state and makes the shell fragment warp, thereby the restriction unblock that the reverse rotation of hand (hold) casing made the movable block break away from the locking pin simultaneously.

2. The locking mechanism for quick connect of an electrical connector plug and receptacle of claim 1, wherein two of said locking mechanisms cooperate to lock at least two sides of the plug and receptacle.

3. The locking mechanism of claim 1, wherein the handle housing is a U-shaped structure with a left or right opening, the upper edges of the two ends of the handle housing have protruding lugs, the protruding lugs have slots, the lower edges of the two ends of the handle housing have positioning steps, the rivet is disposed near the positioning steps, and the lower portion of the resilient plate is fixed to the handle housing by the positioning steps and the rivet.

4. The locking mechanism for the quick connection of an electrical connector plug and a socket as claimed in claim 1, wherein the handle housing is provided with a plastic package member for easy handling, and a part of the plastic package member is wrapped on a portion of the handle housing which is easy to contact with the plug or the socket.

5. The locking mechanism of claim 3, wherein the resilient tab is shaped like a U with an opening facing left or right, and the upper edge of the resilient tab has a rib that can move within the slot when the movable block is forced against the movable block without disengaging the limit of the slot.

6. The locking mechanism for the quick connection of an electrical connector plug and a socket as claimed in claim 5, wherein the movable block has two side vertical surfaces, the bottoms of the two side vertical surfaces are connected through a bottom with a guiding arc line, an installation space is formed between the two side vertical surfaces, the end of the upper portion of the elastic piece is embedded between the two side vertical surfaces, and the two side vertical surfaces of the movable block are fixedly connected with the end of the upper portion of the elastic piece through a rivet.

7. The locking mechanism of claim 6, wherein the lower edge of the upper portion of the resilient tab has a cut corner, the cut corner contacting the bottom upper surface of the movable block, the movable block forming a negative angle in the locked state to prevent accidental unlocking of the locking mechanism.

8. The locking mechanism of claim 1 wherein the resilient tab, the handle housing and the socket are movably connected by a single pin connecting the resilient tab and the handle housing to the socket.