CN201243124Y - Self-locking inserting/pulling type electric connector and plug thereof - Google Patents

Abstract

The utility model relates to a self-locking plug-in type electrical connector plug and an electrical connector, which comprise a pipe body with an annular groove at one end and a stepped lock sleeve mounted on the pipe body, the lock sleeve is divided into two halves Butt combination structure, the sleeve wall of the lock sleeve is divided into pieces by the axial groove, the axial groove extends from the smaller end of the lock sleeve to the step of the lock sleeve wall, and the outer surface of each piece has a radial Raised, the lock sleeve is equipped with a reinforcement sleeve. The bottom surface of the annular groove of the pipe body is a stepped surface, and an annular gap for accommodating the sheet and the protrusion is formed between the inner wall of the locking sleeve sheet and the surface of the small end of the annular groove. The split-type lock sleeve is installed on the pipe body in a relatively buckled manner, and the axial groove does not need to be very long, which reduces the processing difficulty of the lock sleeve; an annular gap is set between the inner wall of the lock sleeve piece and the bottom of the annular groove , the protrusion of the lock sleeve body can be received in the annular gap after being squeezed by the socket, realizing the self-locking plug-in and pull-out function of the plug and socket.

Description

Self-locking plug-in electrical connector plug and self-locking plug-in electrical connector

technical field

The utility model relates to a plug-type electrical connector plug and a plug-type electrical connector.

Background technique

The self-locking plug-in electrical connector includes a plug and a socket that can be plugged and unplugged. There are protrusions and grooves on the mating parts of the plug and the socket. The protrusions on the plug have radial elasticity. When the plug is inserted into the socket During the process, the protrusion is retracted radially first. After the plug is inserted in place, the protrusion is just aligned with the groove. Accidental disconnection after force. Based on the above principles, Chinese patent application 200680001874.2 discloses a plug for plug-in connectors. The plug includes a tube body and a lock sleeve. An annular groove is arranged on the outer surface of one end of the tube body. From the annular groove to The part of the tube body at this end is an anti-off part, and the part of the tube body from the annular groove to the other end of the tube body is a cylindrical connection part for installing cables; the lock sleeve is fitted on the outer surface of the tube body, and the lock sleeve is One end is large and the other end is small in a stepped structure. The large end of the lock sleeve fits on the cylindrical connection part of the pipe body, and the small end of the lock sleeve fits on the annular groove of the pipe body. The sleeve is axially detached from the pipe body; there are axial grooves on the lock sleeve along its circumferential direction, the groove depth of the axial groove extends from the small end to the large end, and the axial groove divides the sleeve wall of the lock sleeve into Several slices make the slices have radial elastic function, and can produce corresponding radial movement when the slices are subjected to radial force, thus ensuring that the small end of the lock sleeve can be stretched smoothly when it is fitted on the pipe body. Open and pass through the anti-off part of the pipe body, and can be reset in time after being installed in place; the outer surface of each piece on the lock sleeve (the small end of the sleeve body) is provided with a radial protrusion, which is matched with the matching Corresponds to the groove on the socket. The plug of this structure maximizes the groove depth of the axial groove of the lock sleeve in order to obtain sufficient radial elasticity of the lock sleeve sheet, and there is an axial groove on the lock sleeve that is axially penetrated. On the one hand, the strength of the large end of the lock sleeve is weakened, and the processing difficulty and cost of the lock sleeve are increased. On the other hand, after the lock sleeve is fitted onto the pipe body, a reinforcement sleeve needs to be installed outside the lock sleeve. In addition, because the lock sleeve of the plug fits with the annular groove on the pipe body, there is no gap between the two that allows the protrusion of the lock sleeve to retract when radially squeezed. When the plug is connected to the socket, , the protrusion will hit the inner hole of the socket, so that it cannot be plugged in, so the plug cannot realize the self-locking plug-in function with the socket.

Utility model content

The purpose of the utility model is to provide a self-locking plug-in electric connector plug with a lock sleeve which is easy to process and has a high lock sleeve strength.

Another object of the utility model is to provide a self-locking plug-in electrical connector with a lock sleeve that is easy to process and has a high lock sleeve strength.

In order to achieve the above-mentioned first purpose, the utility model adopts the following technical scheme: a self-locking plug-in electrical connector plug, including a pipe body with an annular groove at one end and a stepped lock sleeve installed on the annular groove outside the pipe body, A reinforcement sleeve is installed outside the lock sleeve, and the sleeve wall of the lock sleeve is divided into pieces by axial grooves spaced along the circumferential direction. The outer surface of each piece has a radial protrusion. The lock sleeve is Split type two halves buckle combination structure, the axial groove on the lock sleeve extends from the smaller end of the lock sleeve to the step of the lock sleeve wall, and the lock sleeve is fastened and installed on the corresponding part of the pipe body.

The bottom surface of the annular groove of the pipe body is a stepped surface with a large outer end of the inner measuring end and a smaller outer end. An annular gap for accommodating the lock sleeve sheet body and the protrusion is formed between them.

In order to achieve the above-mentioned second purpose, the utility model adopts the following technical scheme: a self-locking plug-in electrical connector, including a self-locking plug-in electrical connector plug and a socket, and the plug includes a pipe body with an annular groove at one end and a mounting The stepped lock sleeve on the annular groove outside the pipe body is equipped with a reinforcement sleeve outside the lock sleeve. The sleeve wall of the lock sleeve is divided into pieces by axial grooves spaced along the circumferential direction. The end of each piece is There are radial protrusions on the outer surface, which snap into the groove connected to the socket on the plug. The lock sleeve is a split-type two-half buckle combination structure. The axial groove on the lock sleeve is formed by the smaller end of the lock sleeve. Extending to the step of the lock sleeve wall, the lock sleeve is fastened and installed on the corresponding part of the pipe body.

The bottom surface of the annular groove of the pipe body is a stepped surface with a large outer end of the inner measuring end and a smaller outer end. An annular gap for accommodating the lock sleeve sheet body and the protrusion is formed between them.

In the utility model, after the lock sleeve is set as a split structure, it can be installed on the pipe body in a relatively buckled manner, and the lock sleeve no longer has a long axial groove for passing through the anti-off part of the pipe body, which greatly shortens the opening. The depth of the groove reduces the processing difficulty of the lock sleeve, and at the same time enhances the strength of the lock sleeve. Change the original smooth surface of the bottom of the annular groove of the pipe body into a stepped surface. After the locking sleeve is fastened, an annular gap is formed between the inner wall of the locking sleeve and the bottom surface of the annular groove. When inserting or unplugging the connection, the protrusion of the lock sleeve can be received in the annular gap after being squeezed by the socket, and the protrusion of the plate can rebound and reset after the extrusion force disappears. The utility model utilizes the lock sleeve The radial elastic performance of the sheet body and the annular gap under the sheet body that can accommodate the protrusion of the sheet body realize the self-locking plug-in and pull-out function of the plug and socket.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the self-locking plug-in electric connector plug of the present invention;

Fig. 2 is a schematic structural view of the lock sleeve in Fig. 1;

Fig. 3 is a schematic structural view of the self-locking plug-in electrical connector of the present invention.

Detailed ways

The self-locking plug-and-pull electrical connector plug shown in Figure 1 and Figure 2 is an improvement on the basis of the existing plug. The improved plug includes a tube body 1 with an annular groove at one end and an annular ring mounted on the outside of the tube. The stepped lock sleeve 7 on the groove, the lock sleeve is a split-type two-half buckle combination structure, the sleeve wall of the lock sleeve 7 is divided into pieces by axial grooves 6 spaced along the circumferential direction, and the axial grooves 6 are formed by The smaller end of the lock sleeve extends to the step of the lock sleeve wall, and the outer surface of each sheet has radial protrusions 4; when assembling the lock sleeve and the pipe body, the split lock sleeve 7 is relatively buckled. It is installed on the corresponding part of the pipe body 1, and a reinforcement sleeve 2 is installed on the outer surface of the larger end of the lock sleeve.

In order to realize the self-locking plug-and-pull connection of plugs and sockets, the bottom surface of the annular groove of the above-mentioned pipe body 1 is set as a stepped surface with a large inner side and a smaller outer side. The large end surface of the annular groove fits together, and an annular gap 8 for accommodating the locking sleeve sheet body and the protrusion is formed between the inner wall of the locking sleeve sheet and the small end surface of the annular groove.

Figure 3 shows a self-locking plug-in electrical connector composed of the plug and socket 9 shown in Figure 1 and Figure 2. When the plug and socket are connected together, the protrusion 4 on the plug lock sleeve just snaps into the socket 9 In the groove, the plug and socket are axially locked together to prevent accidental disengagement; when the plug needs to be pulled out, the reinforcement sleeve 2 is pulled outward, and the protrusion 4 of the lock sleeve is squeezed by the socket 9 and retracted When entering the annular space 8, the protrusion 4 is disengaged from the groove of the socket, thereby releasing the axial locking of the plug socket and realizing the separation of the head seat.

Claims (4)

1. self-locking plug-type electrical connector plug, comprise that an end has the body and the stairstepping lock tube that is installed on the body outer ring groove of annular groove, lock tube is equiped with outward reinforces cover, the jacket wall of described lock tube is divided into lamellar body by the axial groove of along the circumferential direction offering at interval, the end outer surface of each lamellar body all has projection radially, it is characterized in that: lock tube is split type two halves make-up combining structure, axial groove on the lock tube extends to sleeve wall step place by the less end of lock tube, and lock tube fastens and is installed on the corresponding position of body.

2. self-locking plug-type electrical connector plug according to claim 1, it is characterized in that: the little step surface of big outboard end is held for interior survey in described body annular groove bottom land surface, the lock tube lamellar body coincide with the big end surfaces of annular groove and cooperates, and forms between the little end surfaces of lock tube lamellar body inwall and annular groove in order to hold the annular space of lock tube lamellar body and projection.

3. self-locking plug-type electric connector, comprise self-locking plug-type electrical connector plug and socket, plug comprises that an end has the body and the stairstepping lock tube that is installed on the body outer ring groove of annular groove, lock tube is equiped with outward reinforces cover, the jacket wall of described lock tube is divided into lamellar body by the axial groove of along the circumferential direction offering at interval, the end outer surface of each lamellar body all has projection radially, this projection snaps in the groove that is connected socket on the plug, it is characterized in that: lock tube is split type two halves make-up combining structure, axial groove on the lock tube extends to sleeve wall step place by the less end of lock tube, and lock tube fastens and is installed on the corresponding position of body.

4. self-locking plug-type electric connector according to claim 2, it is characterized in that: the little step surface of big outboard end is held for interior survey in the annular groove bottom land surface of described body, the lock tube lamellar body coincide with the big end surfaces of annular groove and cooperates, and forms between the little end surfaces of lock tube lamellar body inwall and annular groove in order to hold the annular space of lock tube lamellar body and projection.

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