CN113161795A - Contact mounting structure, plug, socket and electric connector - Google Patents

Abstract

The invention discloses an electric connector, which comprises a plug and a socket, wherein a plug shell of the plug is connected with a socket shell of the socket, the plug is inserted into a jack, the plug and the socket are also disclosed, the electric connector also comprises a shell, a mounting frame and a contact element assembly, a cavity is arranged in the shell, the mounting frame is arranged in the cavity, a plurality of contact element assemblies arranged at intervals are arranged on the mounting frame, each contact element assembly comprises a mounting plate, a contact element and a gear sleeve, the mounting plate is arranged on the mounting frame, and the contact elements are arranged in the mounting plate. The invention has the beneficial effects that: tooth cover easy dismounting need not specialized tool, consequently makes contact member subassembly and connector easy dismounting to tooth cover after the dismantlement can also reuse many times, thereby has saved the consumptive material, the cost is reduced.

Description

Contact mounting structure, plug, socket and electric connector

Technical Field

The present invention relates to a connector, and more particularly, to a contact mounting structure, a plug, a socket, and an electrical connector.

Background

The installation and the disassembly of a contact element of an electric connector are always important components of the connector technology, the contact element is convenient, firm and reliable to install, and easy to disassemble and capable of being repeatedly used, and the installation and the disassembly of the contact element mainly depend on a connecting device between the contact element and an installation plate, namely a gear sleeve. The structure of the gear sleeve directly influences the installation and the disassembly of the contact piece. The existing connector basically adopts an external tooth or internal tooth structure, and the disassembly of the connector needs a matched special tool, and the service life is limited; in another common structure, elastic teeth are added on a mounting plate to replace a gear sleeve to fix a contact element, but the mounting plate of the structure has a complex structure and increases design and manufacturing costs.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a contact mounting structure, a plug, a socket and an electric connector.

The purpose of the invention is realized by the following technical scheme: a contact element mounting structure comprises a shell, a mounting frame and a contact element assembly, wherein a cavity is formed in the shell, the mounting frame is mounted in the cavity, a plurality of contact element assemblies arranged at intervals are mounted on the mounting frame, the contact element assembly comprises a mounting plate, a contact element and a gear sleeve, the mounting plate is mounted on the mounting frame, the contact element is mounted in the mounting plate, the gear sleeve comprises an outer arm, an inner arm and a connecting rib, the inner arm comprises a support ring with an opening, a plurality of upper gear arms distributed at intervals in the circumference are mounted on the upper surface of the support ring, the upper end portions of the upper gear arms are radially inwards buckled, a plurality of lower gear arms distributed at intervals in the circumference are mounted on the lower surface of the support ring, the outer arm is connected with the inner arm through the connecting rib, the connecting rib is connected with the outer side wall of the support ring, clamping teeth are arranged on the outer side walls at two ends of the outer arm in the circumferential direction, and notch grooves are axially formed on the two end surfaces of the outer arm, the gear sleeve is installed on the installation plate, and the upper end of the upper gear arm is fastened with the contact piece.

Optionally, the plane where the central axis of the notch and the central axis of the opening are located is a symmetry plane, the outer arm is symmetrical about the symmetry plane, the number of the latch teeth is two, and the two latch teeth are symmetrical about the symmetry plane.

Optionally, the outer arm is provided with two convex teeth on the outer side of the end surface close to the upper tooth arm, and the two convex teeth are symmetrical with respect to the symmetry plane.

Optionally, the upper tooth arm and the lower tooth arm at the notch groove are provided with notches.

Optionally, the mounting panel includes barrel and lower barrel, go up barrel and lower barrel connection, be provided with the bulge loop of radial evagination on the barrel down, and the bulge loop is close to last barrel, the window has been seted up to the one end that is close to the bulge loop on the barrel down, the radian of window is the minor arc, the expanding groove that radially expands outward has been seted up on the lower barrel that is located window department, the both ends that are close to the window on the expanding groove have all been seted up the card hole, the contact is installed in the mounting panel, the tooth cover is installed on barrel down, and outer arm card is in window department, the inner arm is located the expanding groove, the latch cooperates with the card hole, the contact is held tightly to the upper end of going up the tooth arm.

Optionally, the expanded groove includes segmental arc and straight wall section, the circumference both ends of segmental arc all are connected with straight wall section, the tip of straight wall section flushes with the tip of window, the card hole is seted up on straight wall section, the direction mouth has been seted up to the one end that is close to the window on the straight wall section, the direction mouth has the inclined plane, and the wall thickness of the direction mouth that is close to window one end is thinnest, direction mouth and card hole are located same circumference, the axial is seted up flutedly on the bulge loop, the recess axial extends to the window, be provided with abrupt tooth on two inner walls of window on the axial direction, the fluting of crook, the coincidence of the well vertical plane of abrupt tooth and recess.

Optionally, the mounting bracket includes the panel, be provided with the installation ear on the panel, the spliced pole has been seted up in the cavity, the installation ear is installed on the spliced pole, a plurality of mounting holes have been seted up on the panel, install the mounting panel in the mounting hole, and the preceding reference surface and the bulge loop laminating of panel, the dogtooth supports on the back reference surface of panel, the slot has been seted up on the inner wall of mounting hole, the slot forms the patchhole with the recess on the lower barrel that corresponds, the constant head tank has still been seted up on the inner wall of mounting hole, install the lug on the bulge loop, the lug cooperation is in the constant head tank.

A plug comprises the contact element mounting structure, a shell of the contact element mounting structure is a plug shell, a contact element is a contact pin, a line collecting hole is formed in the tail portion of the plug shell, and a lead connected with the contact pin penetrates out of the line collecting hole.

A socket comprises the contact mounting structure, a shell of the contact mounting structure is a socket shell, and contacts are jacks.

An electric connector comprises the plug and the socket, wherein a plug shell of the plug is connected with a socket shell of the socket, and the plug is plugged with a jack.

The invention has the following advantages: the electric connector of the invention has the advantages that the tooth sleeve is convenient to disassemble and assemble, and a special tool is not needed, so that the contact component and the connector are convenient to disassemble and assemble, and the disassembled tooth sleeve can be repeatedly utilized for multiple times, thereby saving consumables and reducing cost.

Drawings

FIG. 1 is a schematic structural diagram of the present invention

FIG. 2 is a schematic view of the structure of the plug

FIG. 3 is a schematic view of a socket

FIG. 4 is a schematic structural view of a plug housing

FIG. 5 is a schematic view of the structure of the mounting frame

FIG. 6 is a schematic view of the installation of the contact assembly;

FIG. 7 is a schematic structural view of a contact assembly;

FIG. 8 is a schematic structural view of the contact member surrounded by the gear sleeve;

FIG. 9 is a first structural view of the gear sleeve;

FIG. 10 is a second structural view of the gear sleeve;

FIG. 11 is a third schematic structural view of the gear sleeve;

FIG. 12 is a schematic view of the structure A-A of FIG. 11;

FIG. 13 is a first structural view of the mounting plate;

FIG. 14 is a second structural view of the mounting plate;

FIG. 15 is a third schematic structural view of the mounting plate;

FIG. 16 is a schematic cross-sectional view A-A of FIG. 15;

FIG. 17 is a schematic half-section view of the mounting plate;

in the figure, 100-tooth sleeve, 200-mounting plate, 300-contact element, 101-inner arm, 102-notch, 103-support ring, 104-upper tooth arm, 105-lower tooth arm, 106-opening, 111-outer arm, 112-thin wall, 113-convex tooth, 114-notch groove, 115-latch, 116-connecting rib, 117-inclined plane, 118-limit step, 201-upper barrel, 202-convex ring, 203-lower barrel, 204-window, 205-latch hole, 206-guide opening, 207-bump, 208-positioning tooth, 209-groove, 210-expanded groove, 211-straight wall section, 212-key, 400-plug, 500-mounting plate, 600-socket, 700-contact element component, 401-plug shell, 402-line concentration hole, 403-cavity, 404-connecting column, 501-panel, 502-mounting hole, 503-mounting ear, 504-wing plate, 505-slot, 506-positioning groove and 507-rear reference surface.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that the products of the present invention conventionally lay out when in use, or orientations or positional relationships that are conventionally understood by those skilled in the art, which are merely for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, an electrical connector includes a plug 400 and a socket 600, further, as shown in fig. 2 and 4, the plug 400 includes a contact mounting structure, the socket 600 also includes a contact mounting structure, the contact mounting structures of the plug 400 and the socket 600 are substantially the same, except that the contact mounting structure of the plug 400 has a housing of the plug 401, the contact 300 is a pin, the tail of the housing of the plug 400 has a wire collecting hole 402, a wire connected with the pin passes through the wire collecting hole 402, as shown in fig. 3, the housing of the contact mounting structure of the socket 600 is a socket housing 601, the contact 300 is a socket, the housing of the plug 400 is connected with the socket housing 601 of the socket 600, and the pin and the socket are inserted, preferably, the plug housing 401 and the socket housing 601 are connected through a bolt assembly.

In this embodiment, as shown in fig. 6, the contact mounting structure includes a housing, a mounting frame 500, and a contact assembly 700, wherein a cavity 403 is formed in the housing, the mounting frame 500 is mounted in the cavity 403, and the mounting frame 500 is mounted with a plurality of contact assemblies 700 arranged at intervals.

In the present embodiment, as shown in fig. 6 and 7, the contact assembly 700 includes a mounting plate 200, a contact 300 and a gear sleeve 100, in the present embodiment, as shown in fig. 9, 10 and 11, the gear sleeve includes an outer arm 111, an inner arm 101 and a connecting rib 116, the outer arm 111, the inner arm 101 and the connecting rib 116 are all made of plastic, the inner arm 101 includes a support ring 103 having an opening 106, preferably, the support ring 103 is a circular ring having an opening 106, a plurality of upper tooth arms 104 distributed at intervals circumferentially are mounted on an upper surface of the support ring 103, a plurality of lower tooth arms 105 distributed at intervals circumferentially are mounted on a lower surface of the support ring 103, preferably, the upper tooth arms 104 and the lower tooth arms 105 are uniformly spaced on the lower tooth arms 105, the outer arm 111 is connected to the inner arm 101 through the connecting rib 116, the connecting rib 116 is connected to an outer side wall of the support ring 103, the support ring 103 connected to the connecting rib 116 has a certain structural strength, the support ring 103 is not easy to bend, and the support ring 103 connected with the connecting rib 116 has certain elasticity, so that the support ring 103 can be bent from the opening 106 to two sides, thereby changing the shape of the inner arm 101, thereby facilitating insertion into a mounting plate, when the inner arm 101 loses external force, the inner arm 101 can be restored to an initial state, and when the inner arm 101 is squeezed, the inner arm 101 can be compressed and deformed, thereby clamping a contact element, and because the support ring 103 connected with the connecting rib 116 is not deformed, the original radian is still maintained, and the radian is matched with the cylinder radian of the contact element, thereby ensuring the coaxiality of the contact element for mounting, in the embodiment, in order to improve the stability of the connection between the outer arm 111 and the inner arm 101, the connecting rib 116 extends to the end part of the lower tooth arm 105, and the connecting rib 116 fills up the gap between the lower tooth arms 105 positioned at the outer arm 111, thereby further increasing the structural strength of the connecting ring at the inner arm 101, and stability of the connection between outer arm 111 and inner arm 101.

In the present embodiment, as shown in fig. 9 and 10, the outer side wall of the circumferential both ends of the outer arm 111 is provided with the latch 115, the latch 115 is provided along the circumferential direction, and both end surfaces of the latch 115 in the circumferential direction are wedge surfaces, so that it is convenient to enter and exit the positioning hole on the mounting plate 200 when mounting.

In this embodiment, as shown in fig. 9 and 10, the outer arm 111 is further provided with a convex tooth 113 on the outer side of the end surface close to the upper tooth arm 104, the inner side wall of the convex tooth 113 has a curvature matched with the cylinder of the mounting plate 200, in actual use, the convex tooth 113 is used for positioning, and the convex tooth 113 abuts against the mounting base surface of the mounting frame.

In this embodiment, as shown in fig. 9 and 10, both axial end faces of the outer arm 111 are axially provided with a notch 114, and further, as shown in fig. 12, a slope 117 and a step 118 are provided on a side wall of the notch 114 in the radial direction, one end of the slope 117 is flush with the support ring 103, the other end of the slope 117 is connected with the step 118, the slope 117 is convenient for a leveling tool to extend into, and the leveling can also slide along the slope 117, so as to avoid the notch 114 from being damaged, when the gear sleeve 100 is installed with the mounting plate 200, a cavity is formed between the notch 114 of the gear sleeve 100 and the mounting plate 200, and a notch is correspondingly formed on the mounting plate 200, so that the cavity can be leaked out, when the gear sleeve 100 needs to be dismounted, a straight-type screwdriver is used to enter from the notch 114, and directly and forcibly press the gear sleeve 100 outwards to be dismounted, so that the dismounting manner of the gear sleeve 1004 is simple without a special tool, meanwhile, the disassembly mode is simple, and the disassembly mode is in place in one step.

In this embodiment, a plane where the central axis of the notch 114 and the central axis of the opening 106 are located is a symmetry plane, the outer arm 111 is symmetric about the symmetry plane, the number of the protruding teeth 113 and the number of the latch teeth 115 are two, the two protruding teeth 113 are symmetric about the symmetry plane, and the two latch teeth 115 are symmetric about the symmetry plane.

In this embodiment, as shown in fig. 9 and 10, the end of the outer arm 111 in the circumferential direction is a thin wall 112, the latch 115 is mounted on the corresponding thin wall 112, due to the existence of the thin wall 112, when the inner arm 101 deforms, the outer arm 111 at the thin wall 112 also slightly deforms, so that the latch 115 can enter and exit conveniently, and a gap is formed between the thin wall 112 and the upper latch arm 104, and the latch 115 is arranged towards the upper latch arm 104, so that when the latch 115 is stressed, the thin wall 112 at the latch 115 is more easily deformed.

In the present embodiment, as shown in fig. 9 and 10, the upper end portion of the upper tooth arm 104 is radially inwardly buckled to grip the contact member 300, and further, the lower end portion of the lower tooth arm 105 is radially outwardly turned.

In this embodiment, as shown in fig. 9 and 10, both the upper arm 104 and the lower arm 105 at the notch 114 are provided with the notch 102, that is, the upper arm 104 and the lower arm 105 are not provided on the support ring 103 at the notch 114, so that when the tooth sleeve 100 is pressed down, a tool does not interfere with the upper arm 104 or the lower arm 105, thereby avoiding the rack from being pressed down, and therefore, the pressed tooth sleeve 100 can be reused for multiple times.

In this embodiment, as shown in fig. 13, 14 and 15, the mounting plate 200 includes an upper cylinder 201 and a lower cylinder 203, the upper cylinder 201 is connected to the lower cylinder 203, the lower cylinder 203 is provided with a radially outward protruding collar 202, the collar 202 is close to the upper cylinder 201, one end of the lower cylinder 203 close to the collar 202 is provided with a window 204, an arc of the window 204 is a minor arc, the lower cylinder 203 at the window 204 is provided with a radially outward extending enlarged slot 210, both ends of the enlarged slot 210 close to the window 204 are provided with clamping holes 205, when the gear sleeve 100 is mounted, the contact member 300 is mounted in the mounting plate 200, the gear sleeve 100 is mounted on the lower cylinder, the outer arm is clamped at the window, the inner arm 101 is located in the enlarged slot 210, the clamping tooth 115 is matched with the clamping hole 205, the upper end of the upper gear arm 104 tightly holds the contact member 300, when mounting, the contact member 300 can be mounted in the mounting plate 200 by the waist-shaped drum sleeve initially, the contact member 300 can be axially positioned, the contact piece 300 and the expanded groove 210 have a gap for mounting the gear sleeve 100, then the inner arm 101 is broken off, so that two ends of the inner arm 101 are inserted into the expanded groove 210 from the window, the upper end part of the upper gear arm 104 is of an inner buckling structure in the insertion process of the inner arm 101, the inner buckling structure is in contact with the outer circumference of the contact piece 300 at the moment, the contact piece 300 is provided with a limiting step, the end surface of the inner buckling structure is in contact with the limiting step, after the clamping teeth are clamped into the corresponding clamping holes 205, the gear sleeve 100 is mounted in place, and the inner buckling structure of the upper gear arm tightly holds the contact piece 300 at the moment, so that the contact piece 300 is prevented from moving axially in the insertion process.

In this embodiment, as shown in fig. 16 and 17, the expanded groove 210 includes an arc-shaped section and a straight-wall section 211, both circumferential ends of the arc-shaped section are connected with the straight-wall section 211, an end of the straight-wall section 211 is flush with an end of the window 204, the catch hole 205 is formed in the straight-wall section 211, preferably, an arc degree of the arc-shaped section is 180 °, the straight-wall section 211 facilitates insertion of the insertion end of the tooth sleeve 100, in order to facilitate insertion of the catch tooth 115, a guide opening 206 is formed in one end of the straight-wall section 211, which is close to the window 204, the guide opening 206 has an inclined surface, the wall thickness of the guide opening 206, which is close to one end of the window 204, is the thinnest, and the guide opening 206 and the catch hole 205 are located on the same circumference, so that after the catch tooth 115 enters the guide opening 206, the catch tooth 115 moves along with the inclined surface, so that the catch tooth 115 is convenient to insert.

In this embodiment, the notch 209 is axially formed in the collar 202, the notch 209 axially extends to the window 204, further, the window 204 is provided with the protruding tooth 208 on two inner walls in the axial direction, and the protruding tooth 208 coincides with the perpendicular plane of the notch 209, the notch 209 can make the notch opening of the gear sleeve 100 leak out, can insert into the notch opening from the notch 209 through a flat head tool, and then use the protruding tooth 208 as a fulcrum, thereby unsnapping the gear sleeve 100 on the mounting plate 200, for the unsnapping of the gear sleeve 100, a wedge surface is provided on the supporting surface of the protruding tooth 208, so that the tool can be obliquely inserted into the notch opening.

In the present embodiment, the two guide openings 206, the two snap holes 205 and the window 204 are symmetrical about the groove 209, so as to facilitate the processing of the mounting plate 200, further, the notch 114, the protruding tooth 208 and the perpendicular middle plane of the groove 209 coincide, when the gear sleeve is mounted, the protruding tooth 208 is located in the notch 114, and a space for inserting a flat head tool is provided between the protruding tooth 208 and the notch 114.

In this embodiment, the protruding ring 202 is further provided with a protrusion 207, an angle between the protrusion 207 and the groove 209 is 180 °, and the protrusion 207 is matched with a notch formed on the mounting base surface of the mounting bracket 2 to limit the mounting plate 200 from moving upwards.

In this embodiment, a radially protruding key 212 is disposed on the outer sidewall of the upper barrel 201 to play a positioning role when the connectors are plugged.

In this embodiment, when the contact 300 is installed, the contact 300 is installed in the installation plate 200, at this time, the contact 300 may be initially axially positioned by the kidney-shaped drum sleeve, then the inner arm 101 of the gear sleeve 100 is broken from the opening, so that the inner arm 101 has elastic restoring force, then the end of the inner arm 101 is inserted into the expanded groove 210 from the window, since a space for circumferential movement of the inner arm 101 is provided between the expanded groove 210 and the contact 300, the inner arm 101 is conveniently inserted, and since the inner arm 101 has elastic restoring force, the inner arm 101 always has a tendency to surround the contact 300 during the insertion process, as the inner arm 101 is inserted, the latch 115 enters the straight wall section part from the guide opening 206, and is pressed downwards by force at this time, so that the two latches 115 enter the corresponding latch holes 205, after the gear sleeve 100 is installed, the gear sleeve 100 is pressed by the expanded groove 210, so that the inner buckling structure at the upper end of the upper tooth arm 104 tightly embraces the contact piece 300, thereby increasing the mounting stability of the contact piece 300 and preventing the contact piece 300 from moving axially in the insertion process; during the dismantlement, insert from the flat head instrument from stubborn fluting 114, then up stubborn hard, latch 115 then withdraws from the card hole 205 to stubborn out with tooth cover 100, consequently tooth cover 100 dismouting mode is simple, thereby make contact 300 easy dismounting, need not specialized tool, tooth cover 100 after the dismantlement can reuse many times, thereby practices thrift manufacturing cost.

In this embodiment, the mounting bracket 500 includes a panel 501, a mounting lug 503 is disposed on the panel 501, preferably, a wing 504 is disposed at an edge of the mounting bracket 500, an included angle between the wing 504 and the panel 501 is 91 °, a portion of the wing 504 is bent to form the mounting lug 503, the mounting lug 503 is parallel to the panel 501, a connecting hole is disposed on the mounting lug 503, a connecting post 404 is disposed in the cavity, the mounting lug 503 is mounted on the connecting post 404 by a screw, so as to fix the mounting plate, a plurality of mounting holes 502 are disposed on the panel 501, a mounting plate 200 is mounted in the mounting hole 502, a front reference surface of the panel 501 is attached to the protruding ring, when the gear sleeve is mounted, the protruding tooth abuts against a rear reference surface 507 of the panel 501, so that axial movement between the mounting plate and the panel 501 does not occur, stable mounting of the contact element assembly 700 is achieved, a slot 505 is disposed on an inner wall of the mounting hole 502, the slot 505 and the corresponding groove on the lower barrel form an insertion hole, so that a flat head tool, especially a straight screwdriver, can be conveniently inserted, a positioning groove 506 is further formed in the inner wall of the mounting hole 502, a convex block is mounted on the convex ring and matched in the positioning groove 506, the included angle between the convex block and the groove is 180 degrees, preferably, the positioning groove 506 extends to the wing plate 504, and the axial rotation of the mounting plate is avoided through the matching between the convex block and the positioning groove 506, so that the mounting stability of the contact element assembly 700 is further ensured.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims (10)

1. A contact mounting structure characterized in that: the contact piece assembly comprises a shell, a mounting frame and a contact piece assembly, wherein a cavity is formed in the shell, the mounting frame is installed in the cavity, the contact piece assembly is installed on the mounting frame at a plurality of intervals and comprises a mounting plate, a contact piece and a gear sleeve, the mounting plate is installed on the mounting frame, the contact piece is installed in the mounting plate, the gear sleeve comprises an outer arm, an inner arm and a connecting rib, the inner arm comprises a support ring with an opening, a plurality of upper gear arms distributed at intervals in the circumference are installed on the upper surface of the support ring, the upper end parts of the upper gear arms are radially and internally buckled, a plurality of lower gear arms distributed at intervals in the circumference are installed on the lower surface of the support ring, the outer arm is connected with the inner arm through the connecting rib, the connecting rib is connected with the outer side wall of the support ring, and clamping teeth are arranged on the outer side walls at two ends of the outer arm in the circumferential direction, the outer arm is characterized in that a notch is axially formed in the axial two end faces of the outer arm, the gear sleeve is mounted on the mounting plate, and the upper end of the upper gear arm is fastened with the contact element.

2. A contact mounting structure according to claim 1, wherein: the notched axis of stubborn with the open-ended axis place plane is the plane of symmetry, the outer arm is about the plane of symmetry is symmetrical, the latch is two, and two the latch is about the plane of symmetry is symmetrical.

3. A contact mounting structure according to claim 2, wherein: the outer arm is provided with two convex teeth on the outer side of the end face close to the upper tooth arm, and the two convex teeth are symmetrical relative to the symmetrical plane.

4. A contact mounting structure according to claim 3, wherein: the upper tooth arm and the lower tooth arm which are positioned at the notch groove are provided with notches.

5. A contact mounting structure according to claim 4, wherein: the mounting panel includes barrel and lower barrel, go up barrel and lower barrel connection, be provided with the bulge loop of radial evagination down on the barrel, just the bulge loop is close to go up the barrel, be close to down on the barrel a window has been seted up to the one end of bulge loop, and the radian of window is minor arc, is located set up the radial groove that expands outward on the lower barrel of window department, be close to on the groove expand the both ends of window all seted up the card hole, the contact is installed in the mounting panel, the tooth cover is installed down on the barrel, and outer arm card is in window department, the inner arm is located expand the inslot, latch and the cooperation of calorie hole, the upper end of going up the tooth arm holds tightly the contact.

6. A contact mounting structure according to claim 5, wherein: the flaring includes segmental arc and straight wall section, the circumference both ends of segmental arc all are connected with a straight wall section, the tip of straight wall section flushes with the tip of window, the card hole is seted up on the straight wall section, the direction mouth has been seted up to the one end that is close to the window on the straight wall section, and the direction mouth has the inclined plane, and is close to the wall thickness of the direction mouth of window one end thinnest, the direction mouth with the card hole is located same circumference, the axial is seted up flutedly on the bulge loop, the recess axial extends to the window, the window is provided with abrupt tooth on two inner walls on the axial direction, the notch fluting abrupt tooth with the well vertical plane coincidence of recess.

7. A contact mounting structure according to claim 6, wherein: the mounting bracket includes the panel, be provided with the installation ear on the panel, the spliced pole has been seted up in the cavity, the installation ear is installed on the spliced pole, a plurality of mounting holes have been seted up on the panel, install in the mounting hole the mounting panel, just the preceding reference surface of panel with the bulge loop laminating, the dogtooth supports on the back reference surface of panel, the slot has been seted up on the inner wall of mounting hole, the slot with correspond recess formation patchhole on the barrel down, the constant head tank has still been seted up on the inner wall of mounting hole, install the lug on the bulge loop, the lug cooperation is in the constant head tank.

8. A plug, characterized by: the contact element mounting structure comprises a shell of any one of claims 1 to 7, wherein the shell of the contact element mounting structure is a plug shell, the contact element is a contact pin, a line collecting hole is formed in the tail part of the plug shell, and a lead connected with the contact pin penetrates out of the line collecting hole.

9. A socket, characterized in that: the contact mounting structure according to any one of claims 1 to 7, wherein the housing of the contact mounting structure is a socket housing and the contact is a socket.

10. An electrical connector, comprising: comprising the plug of claim 8 and the socket of claim 9, wherein the plug housing of the plug is connected with the socket housing of the socket, and the plug is plugged into the socket.

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