Micro-circular self-locking pull-out electric connector

Abstract

The utility model relates to a micro-circular self-locking pull-out electric connector, which comprises a plug and a socket, a plug flange on the periphery of a head shell of the plug is in threaded connection with a pull-out nut in a forward limiting manner, and the pull-out nut is clamped with a locking sleeve between the front side of the plug flange and the head shell of the plug. The front end of the locking sleeve is of a multi-petal spring structure extending into a locking groove of an inner cavity in the front end of the socket base shell, and the pull-off nut is backwards connected with the pull-off rope. The inner hole insulation assembly of the seat shell is provided with a shielding sleeve in a front-back limiting mode through a step, the circumference, corresponding to the locking groove, of the shielding sleeve is provided with more than one elastic piece around the circumference, the tail ends of the elastic pieces are connected to the shielding sleeve, the head ends of the elastic pieces are arranged at the ends back to the plug, and the head ends of the elastic pieces are elastically attached to the inner wall, corresponding to the position between every two positioning ribs, of the head shell. The connector is simple and compact in structure, and can effectively give consideration to the plugging shielding performance and stable pull-off operation.

Description

Technical Field

[0001] The utility model relates to an electric connector, in particular to a micro-circular self-locking pull-off electric connector. Background Art

[0002] In the field of micro-circular electrical connectors, the installation space is usually small and the requirements for plugging and separation are very high, especially in high-density installation, small space installation and difficult rotational plugging and separation situations. The existing pull-off separation structure replaces the traditional rotary plug-in structure. However, in order to ensure stable pull-off separation of the plug and socket, the pull-off connector only uses the insulating component to dock and plug in the plug, and the shielding at the plug point is poor. Summary of the Invention

[0003] The utility model provides a micro-circular self-locking pull-off electrical connector which has a simple and compact structure and can effectively take into account both plug-in shielding performance and stable pull-off operation.

[0004] The technical solution adopted by the utility model is: a micro-circular self-locking pull-off electrical connector, including a plug and a socket, the front end of the plug is plugged into the front end of the socket, and is characterized in that: the plug flange on the outer periphery of the head shell of the plug is screwed with a pull-off nut facing forward, and the pull-off nut is clamped with a locking sleeve between the front side of the plug flange and the plug head shell, and the front end of the locking sleeve is a multi-petal spring structure that extends into the locking groove in the front end inner cavity of the socket seat shell, and the pull-off nut is connected to the pull-off rope backward; the insulating component in the inner hole of the seat shell is limited forward and backward by a shielding sleeve through a step, and more than one spring piece is arranged around the circumference of the shielding sleeve corresponding to the locking groove, the tail end of the spring piece is connected to the shielding sleeve, and the head end is at the end facing away from the plug, and the head end of the spring piece elastically fits the inner wall of the head shell corresponding to the position between the two positioning ribs.

[0005] The pull-off nut is forcibly mounted on the outer circle of the plug flange and / or the locking sleeve.

[0006] The outer circumference of the front end of the head shell is provided with one or more positioning ribs along its axial direction, and the inner wall of the front end of the inner cavity of the seat shell is provided with one or more positioning grooves, and the positioning ribs correspond to the plug-in positioning grooves.

[0007] A circle of clamping bosses is arranged on the outer circumference of the front end of the head shell, and the clamping bosses abut against the sealing O-ring arranged on the inner wall of the seat shell toward the outside.

[0008] The spring piece is formed by punching out a U-shaped cutout on the shielding sleeve, and the opening of the U-shaped cutout faces the plug.

[0009] The outer periphery of the seat shell is provided with a mounting flange, the mounting flange is embedded with a conductive O-ring facing forward, the outer periphery of the front end of the seat shell is screwed with a round cap, and the round cap is pressed with the conductive O-ring.

[0010] The shielding sleeve includes a sleeve seat and a sleeve wall. The sleeve wall is coaxially connected to the sleeve seat. A spring piece is arranged on the sleeve wall. The rear end of the sleeve seat abuts against the peripheral step of the hole insulation component, and the front end of the sleeve seat abuts against the inner wall step of the seat shell.

[0011] The beneficial effects of the utility model are as follows: the plug includes a head shell, a pin insulating assembly, a pull-off nut, a locking sleeve, etc. The locking sleeve is placed on the outer circle of the head shell by forced installation, and the connecting nut is strongly installed on the outer circle of the locking sleeve, which is provided with marking grooves of different shapes corresponding to different key positions, and a pull-off rope is provided on the outer side of the connecting nut for easy pull-off operation; the multi-petal spring structure in the circumferential direction of the front of the locking sleeve is clamped in the locking groove of the seat shell to ensure firm insertion and pull-off force control. The socket includes a seat shell, a hole Insulating assembly, shielding sleeve, sealing O-ring, conductive O-ring, round cap, the shielding sleeve is connected to the inner cavity of the seat shell and the hole insulating assembly, the positioning rib groove on the outer circle of the head shell enters the locking groove in the inner cavity of the seat shell, and when the pin is inserted into the socket, the shielding sleeve spring plate elastically abuts against the inner wall of the front end of the head shell. The shielding sleeve is integrally punched out with a spring plate structure and the spring plate structure is facing away from the plug direction, which can effectively improve the firmness of the plug-in performance and the convenient pull-off performance. At the same time, the contact between the spring plate and the seat shell at the plug-in point can ensure more stable shielding performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the plug structure of the utility model;

[0014] Figure 3 for Figure 2 Stereoscopic image of

[0015] Figure 4 This is a schematic diagram of the socket structure of the utility model;

[0016] Figure 5 for Figure 4 Stereoscopic image of

[0017] Figure 6 This is a schematic diagram of the structure of the shielding sleeve of the utility model.

[0018] In the figure: pull-off rope 1, tail nut 2, plug clamp body 3, rubber plug 4, upper bushing 5, head shell 6, head bushing 7, pull-off nut 8, insulator bushing 9, locking sleeve 10, pin 11, pin insulation assembly 12, round spelling cap 13, conductive O-ring 14, sealing O-ring 15, shielding sleeve 16, spring 161, U-shaped punching cutout 162, seat shell 17, sealing body 18, hole insulation assembly 19, jack 20, multi-petal spring 21, locking groove 22, positioning rib 23, positioning groove 24, snap-fit ​​boss 25, mounting flange 26. DETAILED DESCRIPTION

[0019] The following is further explained with reference to the accompanying drawings.

[0020] Figure 1-5 As shown, a micro-circular self-locking pull-off electrical connector includes a pull-off rope 1, a tail nut 2, a plug clamp 3, a rubber plug 4, an upper bushing 5, a head shell 6, a head bushing 7, a pull-off nut 8, an insulator bushing 9, a locking sleeve 10, a pin 11, a pin insulation assembly 12, a round cap 13, a conductive O-ring 14, a sealing O-ring 15, a shielding sleeve 16, a seat shell 17, a sealing body 18, a hole insulation assembly 19, and a jack 20. The front end of the plug is inserted into the front end of the socket, and the outer periphery of the head shell 6 of the plug is limited forward and a pull-off nut 8 is forced to be installed. The pull-off nut 8 is clamped with a locking sleeve 10 between the front side of the plug flange and the plug head shell. The front end of the locking sleeve 10 is a multi-petal spring 21 structure extending into the locking groove 22 of the front end inner cavity of the socket seat shell 17. The pull-off nut 8 is connected to the pull-off rope 1 toward the rear. The insulator bushing 9, the needle insulation assembly 12 with the inner needle 11, the head bushing 7, the upper bushing 5, the rubber plug 4 are arranged in sequence from front to back in the head shell 6, and then the wire is threaded through the plug clamp 3 and locked by the tail nut 2; the outer circumference of the front end of the head shell is provided with more than one positioning rib 23 and a clamping boss 25 along its axial direction, such as Figure 2 The socket housing 17 has an inner hole insulating component 19 which is connected to the socket 20. The inner hole insulating component 19 is connected to the socket 20 through the sealing body 18. The inner hole insulating component 19 is connected to the socket 20 through the sealing body 18. The inner hole insulating component 19 is connected to the rear end of the shielding sleeve 16 through the step. The shielding sleeve 16 has a plurality of U-shaped punching cuts 162 punched out of the spring pieces 161 around the circumference of the sleeve wall. Figure 6 In the figure, the tail end of the spring piece is connected to the shielding sleeve and the head end is at the end facing away from the plug. The head end of the spring piece 161 elastically fits the inner wall of the head shell corresponding to the position between the two positioning ribs. More than one positioning groove 24 is set on the inner wall of the front end of the inner cavity of the seat shell 17. The positioning rib 23 corresponds to the plug-in positioning groove 24. The inner wall of the seat shell 17 is provided with a sealing O-ring 15 that abuts against the outer periphery of the clamping boss 25.

[0021] In this embodiment, a mounting flange 26 is provided on the outer periphery of the seat shell 17 , and the mounting flange 26 is embedded with the conductive O-ring 14 facing forward. The outer periphery of the front end of the seat shell is screwed on the round cap 13 , and the round cap is pressed on the conductive O-ring.

Claims

1. A micro-circular self-locking pull-off electrical connector, comprising a plug and a socket, wherein the front end of the plug is plugged into the front end of the socket, and characterized in that: The plug flange on the outer periphery of the head shell of the plug is threadedly connected to the pull-out nut towards the front, and the pull-out nut is clamped with a locking sleeve between the front side of the plug flange and the plug head shell. The front end of the locking sleeve is a multi-petal spring structure that extends into the locking groove in the inner cavity of the front end of the socket shell, and the pull-out nut is connected to the pull-out rope towards the rear; the insulating component in the inner hole of the seat shell is limited forward by a shielding sleeve through a step, and more than one spring clip is arranged around the circumference of the shielding sleeve corresponding to the locking groove. The tail end of the spring clip is connected to the shielding sleeve and the head end is at the end facing away from the plug. The head end of the spring clip elastically fits the inner wall of the head shell corresponding to the position between the two positioning ribs.

2. The micro-circular self-locking pull-off electrical connector according to claim 1, characterized in that: The pull-off nut is forcibly mounted on the outer circle of the plug flange and / or the locking sleeve.

3. The micro-circular self-locking pull-off electrical connector according to claim 1, characterized in that: The outer circumference of the front end of the head shell is provided with one or more positioning ribs along its axial direction, and the inner wall of the front end of the inner cavity of the seat shell is provided with one or more positioning grooves, and the positioning ribs correspond to the plug-in positioning grooves.

4. The micro-circular self-locking pull-off electrical connector according to claim 1, characterized in that: A circle of clamping bosses is arranged on the outer circumference of the front end of the head shell, and the clamping bosses abut against the sealing O-ring arranged on the inner wall of the seat shell toward the outside.

5. The micro-circular self-locking pull-off electrical connector according to claim 1, characterized in that: The spring piece is formed by punching out a U-shaped cutout on the shielding sleeve, and the opening of the U-shaped cutout faces the plug.

6. The micro-circular self-locking pull-off electrical connector according to claim 1, characterized in that: The outer periphery of the seat shell is provided with a mounting flange, the mounting flange is embedded with a conductive O-ring facing forward, the outer periphery of the front end of the seat shell is screwed with a round cap, and the round cap is pressed with the conductive O-ring.

7. The micro-circular self-locking pull-off electrical connector according to claim 1, characterized in that: The shielding sleeve includes a sleeve seat and a sleeve wall. The sleeve wall is coaxially connected to the sleeve seat. A spring piece is arranged on the sleeve wall. The rear end of the sleeve seat abuts against the peripheral step of the hole insulation component, and the front end of the sleeve seat abuts against the inner wall step of the seat shell.

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