CN216624790U - Communication connector - Google Patents

Abstract

A communication connector of a switch cabinet comprises a first connector and a second connector, wherein in the process of push-pull matching of a drawer unit and a cabinet body, the first connector and the second connector are connected or disconnected through insertion or separation to realize connection or disconnection of a communication line; the first plug-in unit comprises a first fixed seat, a sliding seat and a plug assembly arranged in the sliding seat, and the sliding seat is assembled on the first fixed seat in a sliding manner to form a push-pull structure with a contraction and stretching state; the second plug-in unit comprises a second fixed seat and a communication socket, and when the drawer unit is located at the first position, the push-pull structure is stretched, and the communication line is disconnected; when the drawer unit is at the second position, the push-pull structure is stretched but the communication line is connected; when the drawer unit is in the third position, the communication line is connected but the push-pull structure is retracted. The utility model switches the stretching and contracting states of the push-pull structure along with the push-pull of the drawer unit, so that the communication connector meets the three-position change, and the communication connection state is ensured at the second position and the third position.

Description

Communication connector

Technical Field

The utility model relates to a switch cabinet plug-in unit, in particular to a communication plug-in unit.

Background

Along with the development of low voltage distribution intelligence technique, the intellectuality of electron device constantly promotes, needs a communication connector that can be applicable to low voltage intelligence cubical switchboard, and the communication connector as cubical switchboard needs can transmit the communication signal of interior component of drawer to the communication connector still need satisfy the requirement that can match the three different position states of drawer unit (operating position, experimental position and take out the position), but also need have anti-electromagnetic interference ability. However, the existing communication connectors are divided into two types, one of which is a common secondary connector, the traditional secondary connector usually has the form of a long-stroke pin and a socket, each data signal needs to be wired independently, the wiring is complex, the cost is high, and strong magnetic interference resistance is not achieved; the other is a special communication connector which has an electromagnetic shielding function but cannot meet the three-position change of the drawer and cannot be matched with the drawer unit.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a communication connector which is simple in structure and can meet the requirement of three-position change of a drawer unit in a switch cabinet.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a communication connector comprises a first plug-in and a second plug-in which are in plug-in fit, wherein the first plug-in and the second plug-in are mutually matched and arranged between a cabinet body and a drawer unit;

the first plug-in unit comprises a first fixed seat, a sliding seat and a plug assembly arranged in the sliding seat, the sliding seat is in sliding fit with the first fixed seat to form a push-pull structure, and the stretching and contraction states of the push-pull structure are switched along with the push-pull of the drawer unit; the second plug-in unit comprises a second fixed seat and a communication socket, and the communication socket is fixedly arranged on the second fixed seat;

when the drawer unit is at the first position, the push-pull structure is in a stretching state, and the first plug-in unit is separated from the second plug-in unit;

when the drawer unit is at the second position, the push-pull structure is in a stretching state, the first plug-in unit is plugged with the second plug-in unit, and the sliding seat is plugged and matched with the second fixed seat, the plug assembly and the communication socket;

when the drawer unit is located at the third position, the push-pull structure is in a contraction state, the first plug-in unit is plugged with the second plug-in unit, and the sliding seat, the second fixed seat, the plug assembly and the communication socket are all kept in plugging fit.

Furthermore, at least one group of first sliding structures is arranged between the sliding seat and the first fixed seat, the first sliding structures enable the sliding seat to be in sliding fit with the first fixed seat to form a push-pull structure, each first sliding structure comprises a first sliding rail, a first matching hole, a first sliding part and a first positioning groove, the first sliding rails are in sliding fit with the first matching holes to enable the push-pull structure to be stretched or contracted, and the first positioning grooves are used for being in limiting fit with the first sliding parts.

Further, the stretching state of the push-pull structure comprises a stretching locking state and a stretching unlocking state,

when the push-pull structure is in a contraction state, the distance between the sliding seat and the first fixed seat is minimum, and the first sliding part and the first positioning groove are released from limiting fit;

when the push-pull structure is in a stretching and locking state, the distance between the sliding seat and the first fixed seat is the largest, and the first sliding part is in limit fit with the first positioning groove;

when the push-pull structure is in a stretching unlocking state, the first sliding part and the first positioning groove are released from limiting fit, and the distance between the sliding seat and the first fixing seat is between the maximum value and the minimum value.

Further, the first slide rail is arranged on the sliding seat, and the first matching hole and the first sliding part are arranged on the first fixed seat, or the first slide rail is arranged on the first fixed seat, and the first matching hole and the first sliding part are arranged on the sliding seat;

and when the first sliding piece extends into the first matching hole and is in sliding fit with the first sliding rail, the first sliding piece is matched with the first positioning groove to keep the push-pull structure in a stretching and locking state.

Furthermore, the first slide rail is arranged on the sliding seat, and the first matching hole is arranged on the first fixed seat, or the first slide rail is arranged on the first fixed seat, and the first matching hole is arranged on the sliding seat;

the first sliding rail is provided with a first sliding part, the first positioning groove is arranged in the first matching hole, and when the first sliding rail and the first sliding part are in sliding fit with the first matching hole, the first sliding part is matched with the first positioning groove to keep the push-pull structure in a stretching locking state.

Furthermore, a first assembling groove for assembling the first sliding part is arranged on the sliding seat, the first fixed seat or the first sliding rail.

Furthermore, the first sliding part is a wave ball screw, and the first assembling groove is connected with the wave ball screw.

Further, first slider includes first elastic component and first sliding part, and first elastic component assembles in first mounting groove, and first sliding part is inlayed and is established in first mounting groove, and when first slide rail and first mating hole sliding fit, first elastic component makes partial first sliding part stretch into in the first mating hole through elastic deformation.

Furthermore, a plug structure is arranged between the sliding seat and the second plug-in unit, the plug structure comprises at least one group of second sliding structures arranged between the sliding seat and the second fixing seat, and the sliding fit between the sliding seat and the second fixing seat realizes the plug of the plug assembly and the communication socket.

Further, the second sliding structure comprises a second sliding rail, a second matching hole, a second sliding piece and a second positioning groove which are in sliding fit, the second sliding rail is in sliding fit with the second matching hole to enable the sliding seat and the second plug-in unit to slide relatively, and the second sliding piece is in limiting fit with the second positioning groove to enable the sliding seat and the second plug-in unit to be kept in plugging locking, so that the plug assembly and the communication socket are kept in plugging locking.

Further, the second slide rail is arranged on the second fixed seat, the second positioning groove is arranged on the second slide rail, and the second matching hole and the second sliding piece are arranged on the slide seat, or the second slide rail is arranged on the slide seat, the second positioning groove is arranged on the second slide rail, and the second matching hole and the second sliding piece are arranged on the second fixed seat;

the second sliding part extends into the second matching hole to be in sliding fit with the second sliding rail, and the second fixed seat and the sliding seat are kept in inserting locking when the second sliding part is matched with the second positioning groove.

Further, the second slide rail is arranged on the second fixed seat, the second sliding part is arranged on the second slide rail, the second matching hole is arranged on the sliding seat, and the second positioning groove is arranged in the second matching hole, or the second slide rail is arranged on the sliding seat, the second sliding part is arranged on the second slide rail, the second matching hole is arranged on the second fixed seat, and the second positioning groove is arranged in the second matching hole;

when the second slide rail, the second sliding part and the second matching hole are in sliding fit, and when the second sliding part is matched with the second positioning groove, the second fixed seat and the sliding seat are kept in inserting locking.

Furthermore, a second assembling groove for assembling a second sliding part is arranged on the sliding seat, the second fixed seat or the second sliding rail.

Furthermore, the second sliding part is a wave ball screw, and the second assembling groove is connected with the wave ball screw.

Further, the second sliding part comprises a second elastic piece and a second sliding part, the second elastic piece is assembled in the second assembling groove, the second sliding part is embedded in the second assembling groove, and when the second sliding rail is in sliding fit with the second matching hole, the second elastic piece enables part of the second sliding part to stretch into the second matching hole through elastic deformation.

Furthermore, the first end of the second slide rail is connected with the second fixed seat, the second positioning groove is formed in the side wall, close to the first end, of the second slide rail, and a guide surface used for being in contact with the second sliding piece is arranged between the second positioning groove and the second end of the second slide rail.

Furthermore, the plug assembly comprises a plug fixing seat and a communication plug, the plug fixing seat is fixedly installed in the sliding seat, the communication plug is clamped on the plug fixing seat, and a pressing structure is arranged in the sliding seat and used for pressing the elastic part on the communication plug.

Furthermore, a stopping structure is arranged on the sliding seat and/or the first fixing seat and is used for preventing the sliding seat from falling off from the first fixing seat in the sliding process.

Furthermore, a guide structure is arranged between the first plug-in unit and the second plug-in unit, and when the first plug-in unit is matched with the second plug-in unit, the guide structure provides insertion guide.

Further, be equipped with between second fixing base and the communication socket and prevent slow-witted structure, prevent slow-witted structure including setting up on second fixing base and communication socket respectively prevent slow-witted arch and prevent slow-witted recess, prevent the installation dislocation of second fixing base and communication socket through protruding structure and groove structure cooperation.

Furthermore, the communication plug in the communication socket and the plug assembly is formed by wrapping metal materials, and a wire connected with the communication plug adopts a wire with an electromagnetic shielding function.

According to the communication connector, the sliding seat and the first fixed seat form a push-pull structure with stretching and contracting states, the push-pull structure can be switched between the stretching and contracting states along with the push-pull of the drawer unit in the process of plugging and unplugging the first plug-in unit and the second plug-in unit, the communication connector can meet the requirement of three-position change along with the drawer unit, and the communication connector is ensured to be in a communication connection state at the second position and the third position, so that the communication connector is suitable for the existing switch cabinet.

In addition, the first sliding structure between the sliding seat and the first fixed seat adopts a structure that the sliding rail is matched with the sliding part, so that the inserting and guiding function can be provided when the sliding fit is realized, in addition, the first positioning groove arranged on the first sliding rail keeps the push-pull structure in a stretching and locking state when the first sliding structure is matched with the first sliding part, and the collision sound generated when the first sliding part falls into the first positioning groove can be used as a prompt sound for matching in place.

In addition, the second sliding structure between the sliding seat and the second fixed seat adopts a sliding rail ball structure, and can provide an inserting guide effect together with the guide structure when the sliding fit is realized; in addition, the second positioning groove arranged on the second slide rail can provide plugging resistance when being matched with the second sliding part, so that the sliding seat and the second fixed seat are kept in a plugging state, and the collision sound generated when the second sliding part falls into the second positioning groove can be used as a prompt sound matched in place. Particularly, the second sliding rail of the second sliding structure is also provided with a guide surface matched with the second sliding part, so that the friction force between the initial position and the inserting position when the second fixed seat is matched with the sliding seat in a sliding manner is controlled, and the operation is smooth and the inserting is reliable.

In addition, the first sliding part and the second sliding part can adopt wave ball screws, so that the machining process is simplified, and the assembly is facilitated.

Drawings

FIG. 1 is a schematic view of a communication connector of the present invention in a first position;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a side view of FIG. 1;

FIG. 4 is a schematic view of a communication connector of the present invention in a second position;

FIG. 5 is a front view of FIG. 4;

FIG. 6 is a side view of FIG. 4;

FIG. 7 is a schematic view of a communication connector of the present invention in a first position;

FIG. 8 is a front view of FIG. 7;

FIG. 9 is a side view of FIG. 7;

FIG. 10 is an exploded view of a first insert of the communication connector of the present invention;

FIG. 11 is an exploded view of a first mounting bracket of the communication connector of the present invention;

FIG. 12 is a cross-sectional view of a first retainer of a communication connector of the present invention;

FIG. 13 is a front view of FIG. 12;

FIG. 14 is a schematic view of a sliding seat of a communications connector according to the present invention (facing the end of the second card);

FIG. 15 is a cross-sectional view (right) of the sliding seat of the communication connector of the present invention along the axial direction of the first slide rail;

FIG. 16 is a cross-sectional view of the sliding seat of the communication connector of the present invention taken along the axial direction of the first slide rail;

FIG. 17 is a cross-sectional view of the sliding seat of the communications connector of the present invention taken perpendicular to the axial direction of the first slide rail (near one end of the second card);

FIG. 18 is a schematic view of a plug assembly of a communication connector according to the present invention;

FIG. 19 is a schematic view of a connector mounting base of a communication connector according to the present invention;

FIG. 20 is a schematic view of a second insert of the communication connector of the present invention;

FIG. 21 is an exploded view of a second insert of a communications connector according to the present invention;

FIGS. 22-24 are schematic views of a second mounting block of the communication connector of the present invention;

FIG. 25 is a schematic view of a communication jack of the present invention;

FIG. 26 is a cross-sectional view of a wave ball screw in a communication connector of the present invention (with the spring compressed);

FIG. 27 is a cross-sectional view of a wave ball screw in a communication connector of the present invention (normal state of the elastic member).

Detailed Description

The following further describes a specific embodiment of the communication connector of the switch cabinet according to the present invention with reference to the embodiments shown in fig. 1 to 27. A telecommunications connector for a switchgear cabinet according to the utility model is not limited to the description of the embodiments below.

A communication connector comprises a first plug-in and a second plug-in which are in plug-in fit, wherein the first plug-in and the second plug-in are mutually matched and arranged between a cabinet body and a drawer unit of a switch cabinet;

the first plug-in unit comprises a first fixed seat 1, a sliding seat 2 and a plug assembly arranged in the sliding seat 2, the sliding seat 2 is in sliding fit with the first fixed seat 1 to form a push-pull structure, and the stretching and contracting states of the push-pull structure are switched along with the push-pull of the drawer unit; the second plug-in unit comprises a second fixed seat 5 and a communication socket 6, and the communication socket 6 is fixedly arranged on the second fixed seat 5;

when the drawer unit is at the first position, the push-pull structure is in a stretching state, and the first plug-in unit is separated from the second plug-in unit;

when the drawer unit is at the second position, the push-pull structure is in a stretching state, the first plug-in unit is plugged with the second plug-in unit, and the sliding seat 2, the second fixed seat 5, the plug assembly and the communication socket 6 are all matched in a plugging manner;

when the drawer unit is at the third position, the push-pull structure is in a contracted state, the first plug-in unit is plugged with the second plug-in unit, and the sliding seat 2, the second fixed seat 5, the plug assembly and the communication socket 6 are all kept in plugging fit.

According to the communication connector of the switch cabinet, the sliding seat 2 and the first fixed seat 1 form a push-pull structure with stretching and contracting states, the push-pull structure can be switched between the stretching and contracting states along with the push-pull of the drawer unit in the process of plugging and unplugging the first plug-in unit and the second plug-in unit, the communication connector can meet the requirement of three-position change along with the drawer unit, the communication connector is ensured to be in a communication connection state at the second position and the third position, and the communication connector is suitable for the existing switch cabinet.

As described in detail with reference to fig. 1 to 24, the communication connector of the switch cabinet includes a first plug-in unit and a second plug-in unit capable of being plugged and matched with the drawer unit in a sliding manner, where the first plug-in unit and the second plug-in unit are respectively disposed on the drawer unit and the cabinet body, that is, the first plug-in unit may be disposed on the drawer unit or the cabinet body, and correspondingly, the second plug-in unit is disposed on the cabinet body or the drawer unit, in this embodiment, the first plug-in unit is disposed on the drawer unit, and the second plug-in unit is disposed on the cabinet body.

As shown in fig. 1 to 9, the first plug-in unit is fixed on a drawer unit of a switch cabinet, the first plug-in unit comprises a first fixed seat 1, a sliding seat 2 and a plug assembly, the second plug-in unit comprises a second fixed seat 5 and a communication socket 6 arranged on the second fixed seat 5, wherein the first fixed seat 1 is fixed on the drawer unit, the second fixed seat 5 is arranged on the cabinet body of the switch cabinet, at least one group of first sliding structures are arranged between the first fixed seat 1 and the sliding seat 2, the first sliding structures enable the first fixed seat 1 and the sliding seat 2 to be in sliding fit and form a push-pull structure, the first sliding structure comprises a first sliding rail 22, a first matching hole 12, a first sliding part and a first positioning groove 23, the first slide rail 22 is in sliding fit with the first fitting hole 12 to enable the push-pull structure to be stretched or contracted, and the first positioning groove 23 is used for being in limit fit with the first sliding part.

The sliding seat 2 and the first fixed seat 1 in the push-pull structure can slide relatively at a certain distance without being separated from each other, in the process, the push-pull structure formed by the sliding seat 2 and the first fixed seat 1 has a contraction state and a stretching state, when the push-pull structure is in the contraction state, the first sliding part is separated from the first positioning groove 23, and the distance between the sliding seat 2 and the first fixed seat 1 is shortest; the stretching state comprises a stretching locking state and a stretching unlocking state, when the sliding seat 2 slides relative to the first fixed seat 1 and the first sliding part is in limit fit with the first positioning groove 23, the distance between the sliding seat 2 and the first fixed seat 1 is the longest, and the push-pull structure is in the stretching locking state; when the first sliding member is separated from the first positioning groove 23, the first fixing seat 1 and the sliding seat 2 slide relatively at a distance, at this time, the distance between the first fixing seat 1 and the sliding seat 2 is between the maximum value and the minimum value, and the distance between the sliding seat 2 and the first fixing seat 1 gradually decreases to the minimum value (the push-pull structure enters a contraction state) along with the continuous sliding of the first fixing seat 1 and the sliding seat 2.

Furthermore, a stopping structure is further arranged on the push-pull structure, the stopping structure can be arranged on the sliding seat 2 and the first fixing seat 1 simultaneously or on the sliding seat 2 or the first fixing seat 1 independently, and the stopping structure is preferably arranged at a position close to the end part to prevent the sliding seat 2 from sliding away from the first fixing seat 1.

A plug structure is arranged between the sliding seat 2 and the second plug-in, the first plug-in and the second plug-in realize plug-in by breaking through the plug resistance of the plug structure, so that a plug assembly arranged inside the sliding seat 2 is in plug-in fit with a communication socket 6 arranged on the second fixed seat 5, wherein the plug structure comprises a second sliding structure, the second sliding structure is arranged between the sliding seat 2 and the second fixed seat 5 and is used for enabling the sliding seat 2 and the second fixed seat 5 to slide relatively, and the second sliding structure can be a group or a plurality of groups; the second sliding structure comprises a second sliding rail 52, a second matching hole 24, a second sliding part and a second positioning groove 53 which are matched with each other, the second sliding rail 52 is matched with the second matching hole 24 in a sliding mode to enable the sliding seat 2 and the second plug-in unit to slide relatively, the second sliding part is matched with the second positioning groove 53 in a limiting mode to enable the sliding seat 2 and the second plug-in unit to be kept in a plugging locking mode, and when the sliding seat 2 and the second plug-in unit are kept in the plugging locking mode, the plug assembly and the communication socket 6 are kept in the plugging locking mode.

The plug structure is still including pressing the structure, press the structure setting between sliding seat 2 and plug subassembly, the joint is fixed when plug subassembly's communication plug 4 is pegged graft with communication socket 6, be equipped with the elastic component 41 that is used for the joint on the communication plug 4, press the elastic component 41 that the structure is used for pressing plug subassembly for plug subassembly and communication socket 6 can realize smooth plug. The pressing structure in this embodiment is a pressing portion 211 (see fig. 14).

The whole cooperation motion process with the drawer unit of communication connector as follows:

when the drawer unit is at the first position, namely the drawing-out position (see fig. 1-3), the first plug-in unit is separated from the second plug-in unit, at this time, the push-pull structure is in a stretching state, specifically a stretching locking state, the sliding seat 2 is separated from the second fixed seat 5, the plug assembly is separated from the communication socket 6, and the communication line and the main power line of the switch cabinet are disconnected; when the drawer unit is pushed to a second position from the first position, wherein the second position is a test position (see fig. 4-6), the first plug-in unit and the second plug-in unit need to be plugged by breaking through the plugging resistance of the plugging structure, that is, the second slide rail 52 is in sliding fit with the second matching hole 24, the second sliding member slides into the second positioning groove 53 along the second slide rail 52, so that the sliding seat 2 and the second fixing seat 5 are kept in a plugging locking state, meanwhile, the plug assembly is in plugging fit with the communication socket 6 by the pressing structure, at this time, the communication line is connected, the main power line is still disconnected, and the push-pull structure keeps a stretching locking state under the matching of the first sliding member and the first positioning groove 23; when the drawer unit is pushed from the second position to the third position, wherein the third position is the working position (see fig. 7-9), the second sliding member is matched with the second positioning groove 53 to keep the sliding seat 2 and the second plug-in unit inserted and locked, the communication line is kept connected, the pushing of the drawer unit makes the first sliding member move out of the first positioning groove 23 and slide for a distance along the first sliding rail 22, the push-pull structure enters the contraction state after passing through the stretching unlocking state, and the main power supply of the switch cabinet is also switched on.

When the drawer unit is pulled out from the third position to the second position, the main power supply of the switch cabinet is switched off, the first sliding part is in sliding fit with the first sliding rail 22 until the first sliding part falls into the first positioning groove 23, even if the push-pull structure enters a stretching locking state after passing through a stretching unlocking state from a contraction state, the second sliding part is matched with the second positioning groove 53 in the process, the sliding seat 2 and the second fixing seat 5 are always kept in a splicing locking state, and the communication line is still switched on; when the drawer unit is pulled out from the second position to the first position, the push-pull structure is kept in a stretching locking state, the second sliding member moves out of the second positioning groove 53 and slides along the second sliding rail 52 until the second sliding member is separated from the second sliding rail 52, the second sliding seat 2 is separated from the second fixed seat 5, meanwhile, the plug assembly is separated from the communication socket 6 under the cooperation of the pressing structure, and the communication line is disconnected.

It should be noted that, in the process of matching the drawer unit with the communication connector, the stretching locking state of the push-pull structure corresponds to the second position of the drawer unit accurately, but when the communication connector is applied to drawer units with different strokes, the second position of the drawer unit does not correspond to the stretching locking state of the push-pull structure any longer, at this time, the push-pull structure maintains the stretching locking state at a position where the drawer unit is pushed from the first position to the second position, and when the drawer unit is located at the second position, the push-pull structure is in the stretching unlocking state, so that three-position change of the communication connector can be realized.

Furthermore, a guide structure is further arranged between the first plug-in unit and the second plug-in unit, the plug-in guide is provided when the first plug-in unit is matched with the second plug-in unit, the plug-in stability of the first plug-in unit and the second plug-in unit is improved, and the guide structure can be respectively provided with a plurality of or a single guide structure. In this embodiment, the sliding fit between the first slide rail 22 and the first matching hole 12 may be used as a guiding structure for inserting the sliding seat 2 into the first fixing seat 1, and the sliding fit between the second slide rail 52 and the second matching hole 24 may be used as a guiding structure for inserting the first plug-in unit into the second plug-in unit, and of course, a guiding structure may be additionally provided, and the guiding structure is preferably a guiding shaft and a guiding hole which are matched with each other. In addition, the first sliding structure and the second sliding structure of the present embodiment adopt a sliding rail and sliding member structure, wherein the sliding member preferably has a sliding portion that is in rolling engagement with the sliding rail, so that the sliding friction resistance can be converted into a smaller rolling friction resistance, and of course, the first sliding structure and the second sliding structure may be other structures, for example, a sliding structure that forms point contact, line contact or surface contact with the sliding rail by providing a protrusion or a sliding groove structure, but the friction force is larger than the rolling friction force of the sliding rail ball structure, but a guide structure may be required to be additionally provided.

A first embodiment of a communications connector is provided in connection with fig. 10-25.

In this embodiment, it is preferred that first fixing base 1 is provided with holding tank 11 that holds sliding seat 2, under the cooperation of holding tank 11, make sliding seat 2 and first fixing base 1 occupy less space when forming push-and-pull structure, can also improve shielding effect simultaneously, be equipped with the first inserting groove 21 of assembly plug subassembly on sliding seat 2, so can make whole communication plug-in components when the grafting cooperation, sliding seat 2 is accomodate to holding tank 11 in, plug subassembly is arranged in first inserting groove 21, reduce as far as and occupy exterior space, also do benefit to the grafting cooperation of plug subassembly and communication socket 6 simultaneously.

As shown in fig. 10-13, the first fixing base 1 is a U-shaped groove formed by integral molding or splicing, the U-shaped groove includes two connecting walls and a connecting plate on two sides, an opening of the U-shaped groove faces the sliding base 2, a cavity formed between the two connecting walls and the connecting plate serves as an accommodating groove 11 capable of accommodating the sliding base 2, in the structure, the accommodating groove 11 has only three side walls, and upper and lower sides are open, so that the thickness of the first fixing base 1 can be reduced, and the position of the sliding base 2 can be observed; a through groove 16 is arranged in the central area of the connecting plate, the through groove 16 is used for a lead 42 in the plug assembly to pass through, and the through groove 16 can also enable a part of the sliding seat 2 to pass through, so that the space occupied by the push-pull structure in the contraction state can be reduced as much as possible, of course, under the condition that the drawer space is enough to accommodate the plug-in unit, the accommodating groove 11 can be omitted on the first fixed seat 1, the corresponding sliding seat 2 can also be omitted, and at the moment, only the front-back length of the first sliding structure is lengthened, but the function realized by the plug-in unit is not influenced; at least one first matching hole 12 is opened on the connecting plate, two first matching holes 12 are provided in fig. 10-13, and the two first matching holes 12 are through holes provided on a set of opposite corners of the connecting plate, a first slide rail 22 provided on the slide base 2 is slidably penetrated in the first matching holes 12, wherein the stroke length and the hole diameter of the first matching holes 12 can be designed according to the length and the cross-sectional shape of the first slide rail 22, a first sliding member slidably matched with the first slide rail 22 is assembled on one side of the first matching holes 12, in this embodiment, the first sliding member is preferably as shown in fig. 10-13, and includes a first elastic member 14 and a first sliding portion 15, in the figure, the first sliding portion 15 is a ball, in this embodiment, the first elastic member 14 is a spring, the first sliding member and the first slide rail 22 can press the first elastic member 14 when sliding, the connecting plate is provided with a first assembling groove 13, a first end of the first assembling groove 13 is communicated with a first matching hole 12, preferably, the first assembling groove 13 is perpendicular to a first sliding rail 22, and certainly, a certain included angle can be formed between the first assembling groove 13 and the first sliding rail 22, a first elastic element 14 is assembled in the first assembling groove 13, a second end of the first elastic element 14 is fixedly connected with a second end of the first assembling groove 13, a first sliding part 15 is embedded at the first end of the first elastic element 14, so that the first sliding part 15 can extend into the first matching hole 12 under the pressure of the first end of the first elastic element 14 to be in sliding fit with the first sliding rail 22, the first elastic element 14 changes the part of the first sliding part 15 extending into the first matching hole 12 through elastic deformation, preferably, the inner diameter of the first matching hole 12 is larger than that of the first assembling groove 13, a limiting bulge is arranged at the edge of the first end of the first assembling groove 13, and the shape of the limiting bulge is not specifically required, the limiting protrusion is used for changing the inner diameter of the first assembling groove 13, so that the first sliding part 15 is limited in the first assembling groove 13 and prevented from falling off from the first assembling groove 13. It should be noted that the two first engaging holes 12 may also be disposed along the same horizontal line, the same axis, or the same oblique line, and preferably, the two engaging holes 12 are symmetrically configured, which is beneficial to offset the torsion force generated by the first sliding member.

As shown in fig. 10 and 14-17, the sliding seat 2 is a block structure, two first sliding rails 22 parallel to each other are disposed at the same end of the sliding seat 2, first ends of the two first sliding rails 22 are connected to the sliding seat 2, a second end of the two first sliding rails 22 points to the first fixing seat 1 and is respectively matched with one first matching hole 12 and one first sliding member, the two first sliding rails 22 are disposed on the same diagonal line at the same end of the sliding seat 2, and the position of the first sliding rail 22 needs to correspond to the first matching hole 12; further, a first positioning groove 23 is formed in the first slide rail 22, the first positioning groove 23 is a groove structure or a through hole formed in the second end of the first slide rail 22, when the first sliding portion 15 falls into the first positioning groove 23, a "click" sound is generated due to collision, which indicates that the push-pull structure is in a stretching locking state, and when the first slide rail 22 is provided with a sliding groove for being matched with the first sliding portion 15, the first positioning groove 23 is connected with the sliding groove, so that the first sliding portion 15 can move along the sliding groove, and the left-right swinging amplitude is reduced. Further, a first stopping portion 221 (see fig. 15) is disposed at the second end of the first slide rail 22, the first stopping portion 221 is used for being engaged with the first matching hole 12, so as to prevent the push-pull structure from being released from the stretch locking state after the push-pull structure moves from the second position to the first position, so as to prevent the sliding seat 2 from falling off from the first fixing seat 1, and when the first slide rail 22 and the sliding seat 2 are integrated, the first stopping portion 221 is formed after the first slide rail 22 and the first matching hole 12 are assembled.

In this embodiment, the two first slide rails 22 may also be disposed on the same horizontal line, the same vertical line, or the same inclined line at the same end or the same symmetrical end of the sliding seat 2, at this time, the two first engaging holes 12 disposed on the connecting plate also need to be disposed on the same horizontal line, the same vertical line, or the same inclined line, in addition, only one set of first slide structure may be disposed between the first fixing seat 1 and the sliding seat 2, at this time, only one first slide rail 22 and one first engaging hole 12 are disposed, and the specific positions thereof may be flexibly disposed.

As shown in fig. 14, 15 and 17, a through hole penetrating through two ends of the sliding seat 2 is provided in the middle of the sliding seat 2, the central axis of the through hole is parallel to the central axis of the first sliding rail 22, the through hole serves as a first inserting groove 21 for assembling the plug assembly, preferably, the middle of one side of the sliding seat 2 facing the first fixed seat 1 protrudes, so that the sliding seat 2 is overall in a shape of a Chinese character 'tu', the protruding portion in the middle serves as a protruding portion and is provided with the first inserting groove 21, the outer diameter of the protruding portion is equal to the inner diameter of the through groove 16 of the connecting plate, of course, the outer diameter of the protruding portion and the inner diameter of the through groove 16 can be properly adjusted according to the overall length, that is, when the outer diameter of the protruding portion is larger than the inner diameter of the through groove 16, the overall length is longer, and when the outer diameter of the protruding portion is smaller than the inner diameter of the through groove 16, the overall depth of the accommodating groove 11 can be reduced by penetrating through the through groove 16; the relatively low part around the protrusion can be used as a second stop 28, the first slide rail 22 is arranged on the second stop 28, i.e., the first end of the first slide 22 may be pinned, screwed or otherwise secured to the stop 28, when the push-pull configuration is in the retracted state, the projection may slide through the through slot 16, and the second stopping portion 28 is clamped at the edge of the through groove 16, so as to prevent the push-pull structure from being completely pushed out of the first fixed seat 1 when being contracted, thereby realizing the anti-falling function of the sliding seat 2, in the structure, the whole length of the sliding seat 2 is longer than the length of the accommodating groove 11 of the first fixing seat 1, under the action of the second stopping portion 28, the accommodating groove 11 can accommodate only part of the sliding seat 2, in the embodiment, the first stopping portion 221 at the end of the first slide rail 22 and the second stopping portion 28 of the sliding seat 2 cooperate with the first fixing seat 1 to form a stopping structure. Of course, the stopping structure may also be other structures disposed at the end portions of the first fixing seat 1 and the sliding seat 2, such as a protrusion or a groove structure that are mutually limited, or by changing the diameters of the two ends of the first sliding rail 22, the stopping structure and the first fitting hole 12 can achieve the anti-falling function.

A second matching hole 24 and a second sliding part are arranged at one end of the sliding seat 2 facing the second insert, in the embodiment, as shown in fig. 10 and 17, one second matching hole 24 is arranged on each second stopping portion 28, one second sliding part is assembled in each second matching hole 24, the two second matching holes 24 are arranged along the diagonal line of one end of the sliding seat 2 facing the second insert, a second assembling groove 25 is arranged at one side of each second matching hole 24, the first end of the second assembling groove 25 is communicated with the second matching hole 24, the length direction of the second assembling groove 25 is preferably perpendicular to the axial direction of the second matching hole 24, of course, the length direction of the second assembling groove 25 has a certain included angle with the axial direction of the second matching hole 24, and the inner diameter of the second matching hole 24 is preferably larger than the inner diameter of the second assembling groove 25; the second sliding part comprises a second elastic element 26 and a second sliding part 27, and like the first elastic element 14, the second elastic element 26 also adopts a spring capable of being extruded in the sliding process, the second end of the second elastic element 26 is connected with the second end of the second assembling groove 25, the second sliding part 27 is embedded at the first end of the second elastic element 26, the second sliding part 27 is preferably a ball in the figure, the second sliding part 27 extends into the second matching hole 24 under the pressure of the first end of the second elastic element 26 for sliding matching with the second sliding rail 52, and similarly, a limit protrusion for preventing the second sliding part 27 from falling is arranged at the edge of the first end of the second assembling groove 25; the sliding seat 2 is further provided with a guide slot 29 at an end facing the second plug-in unit, and in fig. 17, the guide slot 29 is respectively disposed at two sides of the first inserting-connecting slot 21, that is, at a side of the first inserting-connecting slot 21 close to the second matching hole 24.

A pressing part 211 (see fig. 14) is further disposed inside the first inserting groove 21, the pressing part 211 is matched with the elastic part 41 disposed on the communication plug 4, so that the elastic part 41 keeps a pressing state, preferably, the elastic part 41 is located at a position close to the end of the first inserting groove 21, which is beneficial for the inserting and pulling operation of the plug assembly and the communication socket 6, but when the elastic part 41 of the communication plug 4 is cancelled, the pressing part 211 can be retained or removed; a plug-in gap is reserved at the other end of the first plug-in groove 21, and the plug-in gap is used for enabling the plug assembly to be in plug-in fit with the communication socket 6 arranged on the second plug-in component.

As shown in fig. 10 and 17-19, preferably, the plug assembly includes a plug holder 3 and a communication plug 4, the plug holder 3 is fixedly installed in the sliding seat 2, and the communication plug 4 is clamped on the plug holder 3, so that the sliding seat 2 can be matched with and installed with different communication plugs 4 through different plug holders 3 without changing the sliding seat 2. Preferably, the communication socket 6 is also in snap fit with the second fixing seat 5. The communication plug 4 adopts a standard communication plug, such as an RJ45 type plug, and the corresponding communication socket 6 is an RJ45 interface. Plug fixing base 3 is fixed in the one end of first inserting groove 21, namely is located the same one end of sliding seat 2 with first slide rail 22, and communication plug 4 is fixed to be worn to establish in first inserting groove 21 through plug fixing base 3 can also set up spacing portion in the plug fixing base 3, spacing portion is used for restricting communication plug 4 and communication plug 4's wire 42, avoids making communication plug 4 and wire 42 take place to misplace or draw and drag at the plug in-process, influences communication connection's stability.

As shown in fig. 19, the plug holder 3 is a groove-shaped structure capable of being assembled in the first inserting groove 21, the plug holder 3 and the first inserting groove 21 can be fixed by a snap structure or other fixing methods, two ends of the plug holder 3 are open, the communication plug 4 is arranged on the plug holder 3 in a penetrating manner, a limiting portion is arranged in the middle of the plug holder 3, the limiting portion includes a first boss 31 and a second boss 32, the first bosses 31 are arranged in the middle of the plug holder 3 in pairs, a gap for the wire 42 of the communication plug 4 to pass through is left between the two first bosses 31, and a small protrusion for limiting the wire 42 can be arranged on the first bosses 31; the number of the second bosses 32 is multiple, wherein the multiple second bosses 32 are disposed in an area of the plug holder 3 near an opening at one end, in fig. 19, two second bosses 32 are disposed on inner side walls at two sides of the opening, the other second boss 32 is disposed on a lower inner side wall of the opening, the communication plug 4 is clamped in the plug holder 3 by the multiple second bosses 32, so that an end portion of the communication plug 4 penetrates through the plug holder 3 and extends into the first inserting groove 21 of the sliding seat 2, and the elastic portion 41 at the end portion of the communication plug 4 can be pressed by the pressing portion 211 in the first inserting groove 21, so as to ensure that the communication socket 6 and the plug assembly can be smoothly inserted and pulled out without being locked by the elastic portion 41 at the end portion of the communication plug 4.

As shown in fig. 20 to 25, the second plug-in includes a second fixing seat 5 and a communication socket 6, the shape of the second fixing seat 5 is not particularly limited, in this embodiment, the second fixing seat 5 is preferably a rectangular plate-shaped structure, two second sliding rails 52 are disposed at one end of the second fixing seat 5 facing the sliding seat 2, the two second sliding rails 52 are disposed at a pair of opposite corners along one diagonal of the second fixing seat 5 and are kept parallel to each other, fixing screw holes 59 are disposed at the other pair of opposite corners of the second fixing seat 5, respectively, screws are assembled in the fixing screw holes 59 for assembling the second fixing seat 5 on the cabinet, of course, the second sliding rails 52 may also be kept parallel to one side of the second fixing seat 5, for example, disposed on the same horizontal line of the second fixing seat 5; the first end of the second slide rail 52 is connected to the second fixing seat 5, the second end of the second slide rail 52 is used for being matched with the second matching hole 24 on the sliding seat 2, the middle part of the second slide rail 52 is provided with a second positioning groove 53, the second positioning groove 53 can be a groove matched with the second sliding part 27 or a through hole, when the second sliding part 27 falls into the second positioning groove 53, a 'click' sound is generated due to collision, which indicates that the second fixing seat 5 and the sliding seat 2 are inserted in place, in addition, a slide groove can be arranged on the second slide rail 52, the slide groove is matched with the second sliding part, and the slide groove is connected with the second positioning groove 53, and certainly, the slide groove can not be connected with the second positioning groove 53, or the slide groove can not be arranged; preferably, the contact surface between the second positioning slot 53 and the second end for engaging with the second sliding member is used as the guiding surface 54, and preferably, the guiding surface 54 is configured as a gradually decreasing slope, so that when the drawer unit is pushed to make the second fixed seat 5 and the sliding seat 2 just start to contact, i.e. when the drawer unit is pushed from the first position just start to the second position, the second sliding member gradually contacts with the second sliding rail 52, the friction between the second sliding member and the second sliding rail 52 is smaller at first, and the friction gradually increases as the second sliding member gets closer to the second position, until the second sliding member falls into the second positioning slot 53, the second fixed seat 5 and the sliding seat 3 are inserted into position and locked, as a deterioration scheme, the contact surface between the second sliding rail 52 and the second sliding member is also adapted to be a horizontal plane, i.e. the inclined guiding surface 54 is not separately provided.

The second fixed seat 5 is provided with a mounting groove 51 for assembling the communication socket 6, the mounting groove 51 is a through hole arranged in the middle of the second fixed seat 5, of course, an offset hole may be formed on the second fixing seat 5 to serve as the mounting groove 51, and a mutually-limited snap 55 structure is preferably arranged between the second fixing seat 5 and the communication socket 6 to limit the mounting of the communication socket 6 in the mounting groove 51, in fig. 23, an extension part 58 is provided at one side of the second fixing base 5 for extending the contact surface of the mounting groove 51 and the communication socket 6, the side walls of the left side and the right side of the mounting groove 51 are respectively provided with a buckle 55 and a guide post 57, the buckle 55 is used for being matched and connected with a clamping groove 62 arranged on the communication socket 6, the guide post 57 extends towards the sliding seat 2 and is matched with the guide groove 29 arranged on the sliding seat 2, so that the insertion guide of the second fixed seat 5 and the sliding seat 2 is realized; further, still be equipped with between mounting groove 51 and communication socket 6 and prevent slow-witted structure, prevent that slow-witted structure makes mounting groove 51 and communication socket 6 form asymmetric structure respectively, prevent that communication socket 6 from appearing misplacing or installation mistake scheduling problem in the assembly process, be equipped with one at the lateral wall of any one side of mounting groove 51 and make mounting groove 51 form the not slow-witted arch 56 (refer to fig. 24) of asymmetric structure, prevent that slow-witted arch 56 can be rectangle, semi-circular or special-shaped structure. In addition, a plurality of mounting grooves 51 may be formed in the second fixing base 5, and one communication socket 6 may be mounted in each mounting groove 51, so that the communication socket may be fitted with a plurality of plug assemblies by one insertion and extraction, or a plurality of communication sockets 6 may be mounted in the mounting grooves 51, and the communication socket may be fitted with a plurality of plug assemblies.

As shown in fig. 25, the communication socket 6 is a rectangular hollow structure as a whole, but the hollow portion of the communication socket 6 is not directly through, but a part of the blocking structure is arranged in the middle of the communication socket 6 for reversing the circuit, the communication socket 6 is assembled in the installation groove 51 and extends towards the second sliding seat 2, the hollow portion of the communication socket 6 is used as a second insertion groove 61, the second insertion groove 61 is used for being inserted into the communication plug 4 in a matching manner, and when the first plug-in unit is inserted into the second plug-in unit in a matching manner, the communication plug 4, the communication socket 6 and the sliding seat 2 are arranged in sequence from inside to outside; be equipped with on the both sides lateral wall of communication socket 6 with buckle 55 cooperation draw-in groove 62, assemble communication socket 6 in mounting groove 51 through buckle 55 structure, be equipped with on one lateral wall of communication socket 6 with prevent slow-witted protruding 56 complex prevent slow-witted recess 63, prevent that slow-witted recess 63 is located communication socket 6 and goes up the lateral wall and be close to one end tip position in figure 25.

In the embodiment, the first slide rail 22 and the second slide rail 52 are preferably slide bars with D-shaped cross sections, but star-shaped, triangular, quadrilateral, oval-shaped, and other shaped bars may also be used, and the cross sections of the second ends of the first slide rail 22 and the second slide rail 52 may be consistent with the bar bodies thereof, or may be flexibly configured into other shapes, such as circles.

In addition, preferably, the communication socket 6 and the communication plug 4 are wrapped by metal materials, and the wire 42 connected with the communication plug 4 is also the wire 42 with electromagnetic shielding function, so as to be beneficial to enhancing the overall electromagnetic shielding effect of the communication plug-in unit, of course, the communication socket 6 and the communication plug 4 which are made without wrapping metal materials outside can also be adopted, and at the moment, the wire 42 can be a common wire 42, so that the communication plug-in unit made has weaker electromagnetic shielding function.

A second embodiment is provided with reference to fig. 26 and 27, and as in the first embodiment, the communication connector includes a first connector and a second connector, which are inserted into and mated with each other, wherein the first connector includes a first fixing seat 1, a sliding seat 2 and a plug assembly disposed inside the sliding seat 2, the second connector includes a second fixing seat 5 and a communication socket 6, and the communication socket 6 is disposed on the second fixing seat 5.

In this embodiment, the first fixing seat 1 and the sliding seat 2 form a push-pull structure under the action of at least one set of first sliding structure, the first sliding structure includes a first slide rail 22, a first positioning groove 23, a first mating hole 12 and a first sliding member, which are matched with each other, the second fixing seat 5 and the sliding seat 2 are connected in a plug-in manner through at least one set of second sliding structure, wherein the plug assembly and the communication socket 6 are the same as those in the first embodiment, a guiding structure, a fool-proof structure and a stopping structure which are the same as those in the first embodiment can be arranged between the first plug-in unit and the second plug-in unit, and the plugging process of the first plug-in unit and the second plug-in unit is the same as that in the first embodiment; the plug assembly and the communication socket 6 can also be made of metal materials with good shielding effect in a wrapping mode, or can be made of plastics directly.

Different from the first embodiment, the first slide rail 22 and the first sliding member are disposed on the first slide rail 22, the first engaging hole 12 is disposed on the first fixing seat 1, the first positioning groove 23 is disposed in the first engaging hole 12, the first slide rail 22 and the first sliding member are slidably engaged with the first engaging hole 12, and the push-pull structure is kept in a stretch-locked state when the first sliding member is engaged with the first positioning groove 23.

Specifically, a first engaging hole 12 is provided on the first fixing base 1, a first positioning groove 23 is provided on a side wall of the first engaging hole 12, preferably, the first positioning groove 23 is located on a lower side wall of the first engaging hole 12, the first slide rail 22 and the first sliding member are provided on the slide base 2, wherein the first slide rail 22 and the slide base 2 may be an integral structure or may be assembled separately, compared with the first slide rail 22 in the first embodiment, the first slide rail 22 and the first engaging hole 12 in the present embodiment have relatively larger dimensions, preferably, a first assembling groove 13 for assembling the first sliding member is provided on the first slide rail 22, a side wall of the first assembling groove 13 is provided with a thread, the first sliding member in the present embodiment is a bead screw 7, as shown in fig. 26 and 27, the bead screw 7 includes a thread sleeve and an elastic member and a ball embedded inside the thread sleeve, the matching process of the ball and the elastic element is the same as the principle of the first sliding part 15 and the first elastic element 14 in the first embodiment, the elastic element is elastically deformed to change the part of the ball extending into the first matching hole 12, when the ball and the first positioning groove 23 are matched, the elastic element is restored to the original state, the ball extending part is more, and when the elastic element is compressed, the ball extending part is less; the threaded sleeve integrally assembles the wave ball screw 7 in the first assembly groove 13, and when the first slide rail 22 is in sliding fit with the first fitting hole 12, when the ball of the wave ball screw 7 falls into the first positioning groove 23, the push-pull structure composed of the first fixed seat 1 and the sliding seat 2 is kept in a stretching locking state.

Similarly, the second slide rail 52 and the second sliding member are disposed on the second fixed seat 5, the second matching hole 24 is disposed on the sliding seat 2, the second positioning groove 53 is disposed in the second matching hole 24, and when the second slide rail 52, the second sliding member and the second matching hole 24 are in sliding fit and the second sliding member and the second positioning groove 53 are in matching, the second fixed seat 5 and the sliding seat 2 are kept in inserting locking. Similar to the first sliding structure, the second sliding rail 52 and the second fixing seat 5 may be an integrally formed structure, or may be formed by splicing, the second sliding rail 52 and the second matching hole 24 are relatively larger than the second sliding rail 52 and the second matching hole 24 of the first embodiment, a second positioning groove 53 is disposed on a side wall of the second matching hole 24, the second positioning groove 53 is preferably located on a lower side wall of the second matching hole 24, a second assembling groove 25 for assembling a second sliding member is disposed on the second sliding rail 52, the second assembling groove 25 is provided with a screw thread, in this embodiment, the second elastic member also adopts the wave ball screw 7, the wave ball screw 7 is screwed to the second assembling groove 25 through a screw thread sleeve on the outer portion of the wave ball screw 7, when the second sliding rail 52 is slidably matched with the second matching hole 24, when the ball of the wave ball screw 7 falls into the second positioning groove 53, so that the second fixed seat 5 and the sliding seat 2 are kept in the inserting and locking state.

In this embodiment, the first slide rail 22 and the second slide rail 52 are preferably rectangular, the shapes of the first engaging hole 12 and the second engaging hole 24 correspond to the shapes of the first engaging hole and the second engaging hole, respectively, when the ball screw 7 of the first slide rail 22 engages with the first positioning groove 23, the ball of the ball screw 7 falls into the first positioning groove 23 and accordingly generates a click sound as an alert sound to indicate that the ball screw 7 engages with the first positioning groove 23, and accordingly, the ball screw 7 of the second slide rail 52 engages with the second positioning groove 53 and accordingly generates an alert sound; in addition, the first ends of the first and second fitting grooves 13 and 25 to which the wave ball screws 7 are fitted may be provided with a stopper protrusion similar to the first scheme, so that it is easier to judge that the wave ball screws are fastened in place, and it is of course not necessary to provide a stopper protrusion for preventing the balls from falling. The first and second sliding members of the present embodiment use ball screws 7, which are more convenient to assemble, and of course, the first and/or second sliding members in the first embodiment may also use ball screws 7.

Furthermore, the first sliding part and/or the second sliding part can be wave ball screws 7 with outer side walls not provided with threads, namely the outer walls of the wave ball screws 7 are smooth, at the moment, the side walls respectively assembled with the first assembling groove 13 and the second assembling groove 25 of the first sliding part and the second sliding part are not provided with threads any more, but the first sliding part and the second sliding part are ensured not to fall off.

In addition, in the above two embodiments, the positions of the first slide rail 22 and the first engaging hole 12 can be interchanged, that is, the first slide rail 22 is disposed on the first fixing base 1, the first engaging hole 12 is disposed on the sliding base 2, and the positions of the second slide rail 52 and the second engaging hole 24 can also be interchanged, that is, the second slide rail 52 is disposed on the sliding base 2, and the second engaging hole 24 is disposed on the second fixing base 5.

The foregoing is a more detailed description of the utility model in connection with specific preferred embodiments and it is not intended that the utility model be limited to these specific details. For those skilled in the art to which the utility model pertains, several simple deductions or substitutions can be made without departing from the spirit of the utility model, and all shall be considered as belonging to the protection scope of the utility model.

Claims (21)

1. The utility model provides a communication connector, is including the first plug-in components of grafting complex and second plug-in components, the setting that first plug-in components and second plug-in components mutually supported is between the cabinet body and drawer unit, its characterized in that: in the process of push-pull matching of the drawer unit and the cabinet body, the first plug-in unit and the second plug-in unit are connected or disconnected with each other through plugging or separation;

the first plug-in unit comprises a first fixed seat (1), a sliding seat (2) and a plug assembly arranged in the sliding seat (2), the sliding seat (2) is in sliding fit with the first fixed seat (1) to form a push-pull structure, and the stretching and contracting states of the push-pull structure are switched along with the push-pull of the drawer unit; the second plug-in unit comprises a second fixed seat (5) and a communication socket (6), and the communication socket (6) is fixedly arranged on the second fixed seat (5);

when the drawer unit is at the first position, the push-pull structure is in a stretching state, and the first plug-in unit is separated from the second plug-in unit;

when the drawer unit is positioned at the second position, the push-pull structure is in a stretching state, the first plug-in unit is plugged with the second plug-in unit, so that the sliding seat (2) is plugged and matched with the second fixed seat (5), the plug assembly and the communication socket (6);

when the drawer unit is located at the third position, the push-pull structure is in a contraction state, the first plug-in unit is plugged with the second plug-in unit, and the sliding seat (2), the second fixed seat (5), the plug assembly and the communication socket (6) are all kept in plugging fit.

2. The communications connector as claimed in claim 1, wherein: at least one group of first sliding structures is arranged between the sliding seat (2) and the first fixing seat (1), the sliding seat (2) and the first fixing seat (1) are in sliding fit to form a push-pull structure through the first sliding structures, each first sliding structure comprises a first sliding rail (22), a first matching hole (12), a first sliding part and a first positioning groove (23), the first sliding rails (22) are in sliding fit with the first matching holes (12) to enable the push-pull structure to be stretched or contracted, and the first positioning grooves (23) are used for being in limiting fit with the first sliding parts.

3. A communications connector as claimed in claim 2, wherein: the stretching state of the push-pull structure comprises a stretching locking state and a stretching unlocking state,

when the push-pull structure is in a contraction state, the distance between the sliding seat (2) and the first fixed seat (1) is minimum, and the first sliding part is released from limiting fit with the first positioning groove (23);

when the push-pull structure is in a stretching locking state, the distance between the sliding seat (2) and the first fixed seat (1) is the largest, and the first sliding part is in limit fit with the first positioning groove (23);

when the push-pull structure is in a stretching unlocking state, the first sliding part and the first positioning groove (23) are released from limiting fit, and the distance between the sliding seat (2) and the first fixing seat (1) is between the maximum value and the minimum value.

4. A communications connector according to claim 3, wherein: the first sliding rail (22) is arranged on the sliding seat (2), and the first matching hole (12) and the first sliding part are arranged on the first fixed seat (1), or the first sliding rail (22) is arranged on the first fixed seat (1), and the first matching hole (12) and the first sliding part are arranged on the sliding seat (2);

and a first positioning groove (23) is formed in the first sliding rail (22), and when the first sliding piece extends into the first matching hole (12) and is matched with the first sliding rail (22) in a sliding mode, the first sliding piece is matched with the first positioning groove (23) to enable the push-pull structure to be kept in a stretching locking state.

5. A communications connector as claimed in claim 3, wherein: the first sliding rail (22) is arranged on the sliding seat (2), and the first matching hole (12) is arranged on the first fixed seat (1), or the first sliding rail (22) is arranged on the first fixed seat (1), and the first matching hole (12) is arranged on the sliding seat (2);

the first sliding rail (22) is provided with a first sliding part, the first positioning groove (23) is arranged in the first matching hole (12), and when the first sliding rail (22) and the first sliding part are matched with the first matching hole (12) in a sliding mode, the first sliding part is matched with the first positioning groove (23) to enable the push-pull structure to be kept in a stretching locking state.

6. A communications connector according to claim 4 or 5, wherein: and a first assembling groove (13) for assembling the first sliding part is formed in the sliding seat (2), the first fixed seat (1) or the first sliding rail (22).

7. The communications connector as claimed in claim 6, wherein: the first sliding piece is a wave ball screw (7), and the first assembling groove (13) is connected with the wave ball screw (7).

8. The communications connector defined in claim 6, wherein: the first sliding part comprises a first elastic piece (14) and a first sliding part (15), the first elastic piece (14) is assembled in the first assembling groove (13), the first sliding part (15) is embedded in the first assembling groove (13), and when the first sliding rail (22) is in sliding fit with the first matching hole (12), the first elastic piece (14) enables part of the first sliding part (15) to extend into the first matching hole (12) through elastic deformation.

9. The communications connector as claimed in claim 1, wherein: a plug structure is arranged between the sliding seat (2) and the second plug-in unit, the plug structure comprises at least one group of second sliding structures arranged between the sliding seat (2) and the second fixing seat (5), and the plug assembly and the communication socket (6) are plugged in and out through sliding fit between the sliding seat (2) and the second fixing seat (5).

10. The communications connector as claimed in claim 9, wherein: the second sliding structure comprises a second sliding rail (52), a second matching hole (24), a second sliding piece and a second positioning groove (53) which are in sliding fit, the second sliding rail (52) and the second matching hole (24) are in sliding fit to enable the sliding seat (2) and the second plug-in unit to slide relatively, and the second sliding piece and the second positioning groove (53) are in limiting fit to enable the sliding seat (2) and the second plug-in unit to be kept in plugging locking, so that the plug assembly and the communication socket (6) are kept in plugging locking.

11. The communications connector as claimed in claim 10, wherein: the second slide rail (52) is arranged on the second fixed seat (5), the second positioning groove (53) is arranged on the second slide rail (52), the second matching hole (24) and the second sliding part are arranged on the slide seat (2), or the second slide rail (52) is arranged on the slide seat (2), the second positioning groove (53) is arranged on the second slide rail (52), and the second matching hole (24) and the second sliding part are arranged on the second fixed seat (5);

the second sliding part extends into the second matching hole (24) to be in sliding fit with the second sliding rail (52), and the second fixed seat (5) and the sliding seat (2) are kept in inserting locking when the second sliding part is matched with the second positioning groove (53).

12. The communications connector defined in claim 10, wherein: the second sliding rail (52) is arranged on the second fixed seat (5), the second sliding part is arranged on the second sliding rail (52), the second matching hole (24) is arranged on the sliding seat (2), the second positioning groove (53) is arranged in the second matching hole (24), or the second sliding rail (52) is arranged on the sliding seat (2), the second sliding part is arranged on the second sliding rail (52), the second matching hole (24) is arranged on the second fixed seat (5), and the second positioning groove (53) is arranged in the second matching hole (24);

when the second sliding rail (52) and the second sliding part are in sliding fit with the second matching hole (24), and when the second sliding part is matched with the second positioning groove (53), the second fixed seat (5) and the sliding seat (2) are kept in inserting locking.

13. A communications connector according to claim 11 or 12, wherein: and a second assembling groove (25) for assembling a second sliding part is arranged on the sliding seat (2), the second fixed seat (5) or the second sliding rail (52).

14. The communications connector as claimed in claim 13, wherein: the second sliding piece is a wave ball screw (7), and the second assembling groove (25) is connected with the wave ball screw (7).

15. The communications connector as claimed in claim 13, wherein: the second sliding part comprises a second elastic piece (26) and a second sliding part (27), the second elastic piece (26) is assembled in the second assembling groove (25), the second sliding part (27) is embedded in the second assembling groove (25), and when the second sliding rail (52) is in sliding fit with the second matching hole (24), the second elastic piece (26) enables part of the second sliding part (27) to extend into the second matching hole (24) through elastic deformation.

16. The communications connector as claimed in claim 13, wherein: the first end of second slide rail (52) is connected with second fixing base (5), and second constant head tank (53) set up and are close to the lateral wall of first end at second slide rail (52), are equipped with between the second end of second constant head tank (53) and second slide rail (52) and are used for leading face (54) with the contact of second slider.

17. The communications connector as claimed in claim 1, wherein: the plug assembly comprises a plug fixing seat (3) and a communication plug (4), the plug fixing seat (3) is fixedly installed in the sliding seat (2), the communication plug (4) is clamped on the plug fixing seat (3), and a pressing structure is arranged in the sliding seat (2) and used for pressing an elastic part (41) on the communication plug (4).

18. The communications connector as claimed in claim 1, wherein: the sliding seat (2) and/or the first fixing seat (1) are/is provided with a stopping structure, and the stopping structure is used for preventing the sliding seat (2) from falling off from the first fixing seat (1) in the sliding process.

19. The communications connector as claimed in claim 1, wherein: and a guide structure is arranged between the first plug-in unit and the second plug-in unit, and when the first plug-in unit is matched with the second plug-in unit, the guide structure provides plugging guide.

20. The communications connector as claimed in claim 1, wherein: be equipped with between second fixing base (5) and communication socket (6) and prevent slow-witted structure, prevent slow-witted structure including setting up on second fixing base (5) and communication socket (6) prevent slow-witted arch (56) and prevent slow-witted recess (63) respectively, prevent the installation dislocation of second fixing base (5) and communication socket (6) through protruding structure and groove structure cooperation.

21. The communications connector as claimed in claim 1, wherein: the communication socket (6) and the communication plug (4) in the plug assembly are formed by wrapping metal materials, and the conducting wire (42) connected with the communication plug (4) is the conducting wire (42) with the electromagnetic shielding function.

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