CN203574185U

CN203574185U - Power supply connector with locking device

Info

Publication number: CN203574185U
Application number: CN201320810186.8U
Authority: CN
Inventors: 郑春开; 秦智良
Original assignee: Kedu Electric Co Ltd
Current assignee: Kedu Electric Co Ltd
Priority date: 2013-12-11
Filing date: 2013-12-11
Publication date: 2014-04-30
Anticipated expiration: 2023-12-11

Abstract

The utility model discloses a power supply connector with a locking device. The power supply connector with the locking device comprises a housing, a socket and a plug; The interior of the housing is provided with a combination switch used for switching on or off a circuit, and the combination switch controls on-off states of the circuit through a turn button arranged on the housing; the socket stretches into the interior of the housing, a wiring terminal of the socket is electrically connected with an output terminal of the combination switch, and a plug-in portion of the plug is provided with a projection; and the locking device is arranged on the inner side of the housing and between the socket and the combination switch, and the locking device is matched with the projection and locks or unlocks the plug and the socket. According to the utility model, only after the plug is inserted into the socket, the combination switch can be operated and the plug and the socket are supplied with power, when being supplied with power, the plug cannot be pulled out, and the housing cannot be detached, and potential safety hazards caused by live-line maloperations are avoided.

Description

A kind of power connector with locking device

Technical field

The utility model relates to electric connection technology field, particularly relates to a kind of power connector with locking device.

Background technology

The electric current of commercial power is generally much bigger than civilian electricity, and in industrial circuit, the environment for use of the parts such as electrical appliance and switch is comparatively severe, it is compared civilian circuit and has larger potential safety hazard, because of the requirement to industrial switch in the industry higher, to prevent electric shock accidents.

For the ease of electric tool or other electrical appliance are powered, often need frequently to move with the wire that plug, socket connect, in moving process, be easy to that plug occurs is separation with socket because excessively pullling or touch other object, and because the electric current of commercial power is generally all very large, in the plug moment separation with socket, be easy to produce electric arc, this electric arc is easy near the flammable materials of igniting, and then causes fire incident; In addition, due to the in use power-off suddenly of some electrical appliances, be easy to cause it to damage, therefore industrial plug socket all requires to have the locking device that prevents both charged separation.

As Chinese patent literature CN101540455A discloses a kind of attaching plug and receptacle combinations, it comprises a plug and a socket, described plug comprises a plug termination end, the plug termination end of the corresponding described plug of described socket is offered with inserting port, on described plug termination end, offer a lock hole, the lock hole of the corresponding described plug termination end of described socket is offered a fixing hole being communicated with described inserting port, in this fixing hole, be provided with one section of screw thread, described attaching plug and receptacle combinations also comprise that one is arranged in the locking piece in the fixing hole of described socket and the lock hole of described plug termination end, with by the inserting port of the plug termination end locking of described plug and described socket, on described locking piece, be provided with one section of screw thread, to realize threaded engagement with described fixing hole.The plug of this utility model carries out fastening locking by locking piece, to prevent that in use plug is separation with socket after coordinating with socket grafting.But plug and socket being entered need to use line-locked time other instrument that locking piece is screwed in fixing hole, operate obviously cumbersome, and affect operating efficiency.

And Chinese patent literature CN102509951A has also announced a kind of industrial connector and male thereof, female, its arranged outside in male one card groove, and in card groove by the bearing pin grab that spun, one end at grab is provided with gib head, its other end is provided with snap-fastener, below snap-fastener, be provided with a spring, one end of this spring is against by buckling, and its other end is against on card groove; In the U-lag of female seat, be provided with a projection, form between at the bottom of projection and U-lag one can indwelling gib head skewed slot.After male and female are pegged graft and coordinated, the grab in male can be connected in female seat on the projection in U-lag just, forms and locks.Than patent documentation CN101540455A, the disclosed locking device of this patent documentation is more convenient for operating, but these two kinds of locking devices are all arranged on the outside of housing, in use be easy to come off or damage because touching other object, and because the female end of socket connects power supply all the time, plug is hot line job in plug process, after plug male end is pulled out, live terminal in the slotting chamber of socket female end is exposed, easily causes electric shock accidents, therefore has larger potential safety hazard.

Utility model content

For this reason, the existing plug for industrial use of the technical problems to be solved in the utility model, socket connector are hot line job in plug process, and the band point part of socket female end is exposed, has larger potential safety hazard; And the locking between plug and socket can only be fixed by the locking press button or the screw that are arranged on its hull outside, troublesome poeration, and easily come off.

For achieving the above object, the utility model provides a kind of power connector with locking device, and by the following technical solutions:

A kind of power connector with locking device, it comprises housing, described enclosure interior is provided with the unit switch of connection or point deenergizing, and the input terminal of described unit switch is connected with power supply, is arranged on the knob of described housing top by the break-make of unit switch described in action bars control; The plug that described power connector also comprises socket and coordinates with described socket, described socket stretches into described enclosure interior by the interface being arranged on described housing; The binding post of described socket is electrically connected with the lead-out terminal of described unit switch; On the Plug Division of described plug, be provided with projection; Described housing inner side, and between described socket and described unit switch, be provided with and coordinate with described projection and by described plug and described socket locks or the locking device of release, described locking device and described knob linkage, be suitable for when described knob rotates to switch connection position, described locking device is by described plug and the locking of described socket, described knob is during to switch open position, and described locking device is removed the locking to described plug, described socket.

Described locking device comprises the position-limited rack that place, the maximum insertion position of described plug is set, and described position-limited rack is provided with the catch that coordinates locking with described projection, and described position-limited rack is by linkage piece and described knob linkage; The middle part of described linkage piece is hinged on by screw on the inwall of described housing, and the lower end of described knob is provided with eccentric drive portion, and described knob drives described linkage piece to swing by described eccentric drive portion, and then drives described catch to block or away from described projection.

Described position-limited rack is annular, and fixes by support, and described position-limited rack can be with respect to described support rotation; The end of described plug can be inserted in described position-limited rack; Described catch is arranged on the inner ring surface of described position-limited rack, and it comprises and approach the front and back catch that described plug one side arranges, and arrange vertically for strengthening the rotation catch of described front and back catch intensity; After described plug inserts in described socket, described linkage piece can drive described position-limited rack to rotate to an angle while swinging, and now, described front and back catch is suitable for coordinating with described projection, stops that described plug outwards extracts, and realizes described plug and locks.

The end coordinating with described position-limited rack of described linkage piece is provided with the breach of " U " shape, is provided with the projection coordinating with described breach on the outer ring surface of described position-limited rack; One end coordinating with described knob of described linkage piece is provided with the through hole of " T " font substantially, described through hole comprises the transverse holes take described linkage piece middle part pin joint as the arc in the center of circle, and the upright opening extending to the pin joint at described linkage piece middle part, described action bars is connected with described knob through the transverse holes of described through hole end, and described eccentric drive portion inserts in the upright opening in the middle part of described through hole; The track that the radian of described transverse holes described linkage piece relative to described operating axis swings is consistent.

The horizontal slotting bearing pin in the one end coordinating with described knob of described action bars, the body of described action bars is extended at least one end of described bearing pin, and the length of described bearing pin is greater than the width of described transverse holes, and is less than the length of described transverse holes; Described unit switch when open position, described bearing pin axially consistent with the length direction of described transverse holes; Described unit switch is when on-position, and the axial and length direction of described transverse holes of described bearing pin has angle, and one end away from described action bars of described bearing pin is projected on the body of described linkage piece; The center of described knob below is provided with and described action bars, the described bearing pin groove coordinating of pegging graft.

The end of described eccentric drive portion is provided with the hook portion extending laterally, and described hook portion is through described upright opening and extend to the below of described linkage piece; When the bearing of trend of described hook portion is consistent with the length direction of described upright opening, described eccentric drive portion can exit from described upright opening; When the bearing of trend of described hook portion departs from the length direction of described upright opening, described hook portion is stuck in the lower surface of described linkage piece.

Described enclosure interior is provided with for the positioner to described position-limited rack location.

Described positioner comprises lock dog, and one end of described lock dog is provided with rotating shaft, in described rotating shaft, is provided with torsion spring, and described lock dog is hinged on described housing inner side by described rotating shaft; The other end of described lock dog is provided with fixture block, is provided with the draw-in groove coordinating with described fixture block on described position-limited rack, and described torsion spring drives the sideway swivel of described lock dog to described position-limited rack, and coordinates with described draw-in groove described position-limited rack location by described fixture block; Described plug inserts behind described socket inside, the described plug ends described lock dog of conflicting, and drive described lock dog to rotate and make described fixture block and described exact separation around described rotating shaft, to remove the locking position of described lock dog to described position-limited rack.

The spigot that described hull outside is positioned at described socket is hinged with socket cover, and the jointed shaft of described socket cover is arranged on the top of described socket.

On the interior capping of the side away from its jointed shaft of described socket cover, be provided with card division, the correspondence position of described plug is provided with stopper protrusion, described plug inserts after described socket, and described card division is realized described socket cover with described stopper protrusion cooperation and is connected with the spacing of described plug.

The beneficial effects of the utility model:

1. on the Plug Division of the utility model plug, be provided with projection, in housing inner side, between socket and unit switch, be provided with this projection and coordinate, and by plug and socket locks or the locking device of release, this locking device and knob linkage, be suitable for when knob rotates to switch connection position, and locking device is by plug and socket locking, when action bars turns to switch open position, locking device is removed the locking to described plug, socket.This design only could be powered to socket and plug when the knob of unit switch is threaded to on-position, and now locking device is by plug and socket locking, and plug can not be extracted, and has eliminated potential safety hazard; And before unit switch is not connected, socket, all the time in off-position, even if the binding post of its socket leaks outside, electric shock accidents can not occur yet, thereby improve processing safety.

2. one end coordinating with knob of the utility model action bars is horizontal inserts a bearing pin, and the body of described action bars is extended at least one end of bearing pin, and the length of bearing pin is greater than the width of transverse holes, and is less than the length of transverse holes; When unit switch is during in open position, bearing pin axially consistent with the length direction of transverse holes now can exit action bars and bearing pin from transverse holes, carries out the wiring of power connector inlet wire and operates; And when unit switch is during in on-position, the length direction axial and transverse holes of bearing pin has angle, and one end away from action bars of bearing pin is projected on the body of linkage piece, when action bars moves downward, bearing pin can be against on the linkage piece body of transverse holes side, action bars can not be exited from transverse holes, and then cannot be by upper and lower two housings separately.Also when unit switch is during in on-position; even if operating personnel fall the screw disassembling that connects upper and lower two housings; due to the matching relationship of bearing pin and linkage piece; also cannot be by upper and lower two housings separately; prevent operating personnel from encountering the exposed band point part of enclosure interior by mistake and electric shock accidents occurs, and then effectively protecting the person and property safety.

3. the end of the utility model eccentric drive portion is provided with the hook portion extending laterally, and this hook portion is passed upright opening and extended to the below of linkage piece; When the bearing of trend of hook portion is consistent with the length direction of upright opening, eccentric drive portion can exit from upright opening; When the bearing of trend of hook portion departs from the length direction of upright opening, hook portion is stuck in the lower surface of described linkage piece.When operating personnel are intended to upper-lower casing to separate under on-state, because bearing pin is against the upper surface of linkage piece, be therefore difficult to separate completely; But now the screw at linkage piece middle part is the equal of fulcrum, action bars has applied a downward pulling force by bearing pin to linkage piece, now because action bars is larger to the arm of force of screw, linkage piece is easy to be pulled out of shape and then makes upper and lower two housings separately, so not only damage linkage piece, after upper and lower two housings separates, be easy to occur electric shock accidents simultaneously.And by hook portion is set in the end of eccentric drive portion, while separating upper-lower casing under electriferous state, when bearing pin is against linkage piece upper surface, hook portion is against the lower surface of linkage piece, hook portion position is now the equal of fulcrum, and action bars is very little apart from the arm of force of hook portion, and linkage piece is not easy to be pulled out of shape, upper-lower casing is also difficult to be separated, and then has improved the security performance of the utility model connector.

4. the positioner to position-limited rack location of enclosure interior setting of the present utility model only has after plug insertion socket and could unlock to position-limited rack, now rotating knob could drive position-limited rack to rotate to an angle, and before plug does not insert socket, positioner can not rotate position-limited rack locking, and then knob can not rotate, in open position, can there is not electric shock accidents even if the spliced eye on socket leaks outside in switch now yet.

Accompanying drawing explanation

For the content that makes utility model is more likely to be clearly understood, according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein below

Fig. 1 is the structure explosive view of the utility model power connector;

Fig. 2 is the structural representation of the position-limited rack of the utility model power connector;

Fig. 3 is the structural representation of the knob of the utility model power connector;

Fig. 4 is the cooperation schematic diagram of unit switch of the present utility model position-limited rack, linkage piece, knob when open position;

Fig. 5 is the cooperation schematic diagram of unit switch of the present utility model position-limited rack, linkage piece, knob when on-position;

Fig. 6 is in the utility model plug insertion socket, and position-limited rack is not by the structural representation of plug latch timing;

Fig. 7 is in the utility model plug insertion socket, and position-limited rack rotation is extremely by the structural representation of plug latch timing;

Structural representation when Fig. 8 is the utility model lock dog by described position-limited rack locking;

Fig. 9 is plug insertion socket of the present utility model, the structural representation when projection on plug is conflicted lock dog;

Figure 10 is plug insertion socket of the present utility model, and projection conflict lock dog is also removed structural representation when position-limited rack is locked;

Figure 11 is the overall structure schematic diagram that the plug of power connector of the present utility model is pegged graft after coordinating with socket.

In figure, Reference numeral is expressed as:

1-housing; 11-interface; 12-upper shell; 13-lower house; 14-knob installing port; 2-unit switch; 21-knob; 210-eccentric drive portion; 211-hook portion; 22-action bars; 23-bearing pin; 24-groove; 3-socket; 31-socket; 4-plug; 41-projection; 42-protuberance; 5-position-limited rack; 50-draw-in groove; 51-catch; Catch before and after 511-; 512-rotates catch; 52-projection; 6-linkage piece; 61-through hole; 610-transverse holes; 611-upright opening; 62-breach; 63-screw; 7-lock dog; 71-fixture block; 72-rotating shaft; 73-torsion spring; 8-socket cover; 81-card division; 9-support.

Embodiment

embodiment mono-

Referring to Fig. 1, a kind of power connector with locking device, comprise housing 1, described housing 1 comprises upper shell 12 and lower house 13, described housing 1 inside is provided with the unit switch 2 of connection or point deenergizing, described unit switch 2 is fixedly installed on lower house 13 inner sides, and the input terminal of described unit switch 2 is connected with power supply, and the knob 21 that is arranged on described upper shell 12 knob installing port 14 places, top is controlled the break-make of described unit switch 2 by action bars 22; The plug 4 that power connector of the present utility model also comprises socket 3 and coordinates with described socket 3, described socket 3 stretches into described housing 1 inside by the interface 11 being arranged on described housing 1; The binding post of described socket 3 is electrically connected with the lead-out terminal of described unit switch 2; On the Plug Division of described plug 4, be provided with projection 41; Described housing 1 inner side, and between described socket 3 and described unit switch 2, be provided with and coordinate with described projection 41 and described plug 4 and described socket 3 locked or the locking device of release, described locking device and described knob 21 link, be suitable for when described knob 21 rotates to switch connection position, described locking device locks described plug 4 with described socket 3, when described knob 21 turns to switch open position, described locking device is removed the locking to described plug 4, described socket 3.Like this, when the knob 21 of combinations thereof switch 2 is threaded to on-position, power to socket 3 and plug 4, now locking device locks described plug 4 with described socket 3, and described plug 4 can not be extracted, and has eliminated potential safety hazard; And before unit switch is not connected, socket, all the time in off-position, even if the binding post in its socket 31 leaks outside, electric shock accidents can not occur yet, thereby improve processing safety.

The structure of above-mentioned locking device is not unique, as preferably, in the present embodiment, described locking device comprises the position-limited rack 5 that place, the maximum insertion position of described plug 4 is set, described position-limited rack 5 is provided with the catch 51 that coordinates locking with described projection 41, and described position-limited rack 5 links by linkage piece 6 and described knob 21; The middle part of described linkage piece 6 is hinged on by screw 63 on the inwall of described housing 1, the lower end of described knob 21 is provided with eccentric drive portion 210, described knob 21 drives described linkage piece 6 to swing by described eccentric drive portion 210, and then drives described catch 51 to block or away from described projection 41.Above-mentioned locking device coordinates interlock by position-limited rack 5 one end with linkage piece 6, one end coordinates and has realized when unit switch 2 is switched on or switched off with described projection 41, and described plug 4 is locked or release with described socket 3, and it is simple in structure, easy to operate, reliability is better.

Particularly, referring to Fig. 2, described position-limited rack 5 is annular, and described position-limited rack 5 is fixing by the support 9 between described socket 3 and described unit switch 2, and described position-limited rack 5 can rotate relative to described support 9.The end of described plug 4 can be inserted in described position-limited rack 5; Described catch 51 is arranged on the inner ring surface of described position-limited rack 5, it comprises the front and back catch 511 that approaches described plug 4 one sides settings, and the rotation catch 512 arranging vertically, described front and back catch 511 is structure as a whole with described rotation catch 512, and basic vertical setting mutually; Described rotation catch 512 is the equal of the reinforcement of described front and back catch 511, and it can strengthen the bulk strength of described front and back catch 511, guarantees locking effect.Referring to Fig. 6-7, described plug 4 insert described socket 3 interior after, described linkage piece 6 can drive described position-limited rack 5 to rotate to an angle while swinging, now, catch 511 rotations in described front and back are to the side away from its inserted terminal end of described projection 41, stop that described plug 4 outwards extracts, realize described plug 4 and lock.

Referring to Fig. 4-7, the end coordinating with described position-limited rack 5 of linkage piece 6 described in the present embodiment is provided with the breach 62 of " U " shape, is provided with the projection 52 coordinating with described breach 62 on the outer ring surface of described position-limited rack 5; One end coordinating with described knob 2 of described linkage piece 6 is provided with the through hole 61 of " T " font substantially, described through hole 61 comprises the transverse holes 610 take described linkage piece 6 middle part screws 63 as the arc in the center of circle, and the upright opening 611 extending to the screw 63 at described linkage piece 6 middle parts; Certainly, described upright opening 611 also can extend to the side away from screw 63.Described screw 63, described action bars 22 is connected with described knob 21 through the transverse holes 610 of described through hole 61 ends, and described eccentric drive portion 210 inserts in the upright opening 611 at described through hole 61 middle parts; The track that the radian of described transverse holes 610 described linkage piece 6 relative to described operating axis 22 swings is consistent.

Referring to Fig. 1, Fig. 4, Fig. 5, the horizontal slotting bearing pin 23 in the one end coordinating with described knob 21 of the described action bars 22 in the present embodiment, body and development length that described action bars 22 is all extended at the two ends of described bearing pin 23 equate, can certainly be that described action bars 22 bodies are extended in wherein one end of described bearing pin 23; Referring to Fig. 3, the center of described knob 21 belows is provided with and described action bars 22, described bearing pin 23 groove 24 coordinating of pegging graft.The length of described bearing pin 23 is greater than the width of described transverse holes 610, and is less than the length of described transverse holes 610; Referring to Fig. 4, when described unit switch 2 is during in open position, described bearing pin 23 axially consistent with the length direction of described transverse holes 610 now can withdraw described action bars 22, described bearing pin 23 downwards from described transverse holes 610; Referring to Fig. 5, when described unit switch 2 is during in on-position, axially having angle with the length direction of described transverse holes 610 of described bearing pin 23, and the two ends of described bearing pin 23 are projected on the body of described linkage piece 6, when described action bars 22 moves downward, described bearing pin 23 is against in described linkage piece 6 just, described action bars 22 can not be exited from transverse holes 610, and then upper shell 12 and lower house 13 cannot be separated.Also when unit switch is during in on-position; even if operating personnel fall the screw disassembling that connects upper and lower two housings; due to bearing pin 23 and the matching relationship of linkage piece 6; also cannot be by upper and lower two housings separately; prevent operating personnel from encountering the exposed band point part of enclosure interior by mistake and electric shock accidents occurs, and then effectively protecting the person and property safety.

In the present embodiment, the end of described eccentric drive portion 210 is provided with the hook portion 211 extending laterally, and described hook portion 211 is through described upright opening 611 and extend to the below of described linkage piece 6; Referring to Fig. 4, when the length direction of the bearing of trend of described hook portion 211 and described upright opening 611 is consistent, described eccentric drive portion 210 can upwards exit from described upright opening 611; Referring to Fig. 5, when the bearing of trend of described hook portion 211 departs from the length direction of described upright opening 611, described hook portion 211 is stuck in the lower surface of described linkage piece 6, and now described eccentric drive portion 210 can not upwards exit from described upright opening 611.When operating personnel are intended to upper-lower casing to separate under on-state, because bearing pin 23 is against the upper surface of linkage piece 6, be therefore difficult to separate completely; But now the screw at linkage piece 6 middle parts is the equal of fulcrum, action bars has applied a downward pulling force by bearing pin 23 to linkage piece 6, now because action bars 22 is larger to the arm of force of screw, linkage piece 6 is easy to be pulled out of shape and then makes upper and lower two housings separately, so not only damage linkage piece 6, after upper and lower two housings separates, be easy to occur electric shock accidents simultaneously.And by hook portion 211 is set in the end of eccentric drive portion 210, while separating upper-lower casing under electriferous state, when bearing pin 23 is against linkage piece 6 upper surface, hook portion 211 is against the lower surface of linkage piece 6, hook portion 211 positions are now the equal of fulcrum, and action bars 22 is very little apart from the arm of force of hook portion 211, and linkage piece 6 is not easy to be pulled out of shape, upper-lower casing is also difficult to be separated, and then has improved the security performance of the utility model connector.

embodiment bis-

In order to prevent plug 4, before not inserting described socket 3, because causing unit switch 2, misoperation connects, and then the live part that causes socket 3 exposed and occur electric shock accidents, on the basis of above-described embodiment one, described housing 1 inside is provided with the positioner for described position-limited rack 5 is located, after described position-limited rack 5 is positioned, described unit switch 2 can only be positioned at open position, and can not turn to on-position.

Referring to Fig. 8, the described positioner in the present embodiment comprises lock dog 7, and one end of described lock dog 7 is provided with rotating shaft 72, in described rotating shaft 72, is provided with torsion spring 73, and described lock dog 7 is hinged on described support 9 by described rotating shaft 72; The other end of described lock dog 7 is provided with fixture block 71, on described position-limited rack 5, be provided with the draw-in groove 50 coordinating with described fixture block 71, on described support 9, be provided with the described torsion spring 73 snapping fit onto in described draw-in groove 50 for described fixture block 71 and drive the sideway swivel of described lock dog to described position-limited rack 5, and coordinate described position-limited rack 5 is located with described draw-in groove 50 by described fixture block 71; Referring to Fig. 9-10, described plug 4 inserts behind described socket 3 inside, the described plug 4 ends described lock dog 7 of conflicting, and drive described lock dog 7 to rotate and make described fixture block 71 separation with described draw-in groove 50 around described rotating shaft 72, to remove the locking position of described lock dog 7 to described position-limited rack 5.

Operation principle of the present utility model is:

When plug 4 does not insert the socket 31 of socket 3 when interior, fixture block 71 on described lock dog 7 turns in the draw-in groove 50 snapping on position-limited rack 5 under the effect of torsion spring 73, and now position-limited rack 5 is positioned, and can not rotate, and then causing linkage piece 6 not swing, described unit switch 2 remains on open position.

When plug 4 inserts the socket 31 of socket 3 when interior, first by the end of its Plug Division, conflicted and back down described fixture block 71, remove the location of described lock dog 7 to described position-limited rack 5; Then turning knob 21, described unit switch 2 is turned to on-position from open position, meanwhile, described eccentric drive portion 210 drives described linkage piece 6 to swing, front and back catch 511 on described position-limited rack 5 is threaded to the protuberance 42 on plug 4 and is coordinated, to stop that plug 4 extracts backward, realize plug 4 and socket 3 locking latch, connect whole circuit.

embodiment tri-

Because the operational environment of commercial power source connector is poor, dust, muddy water etc. are more, in order to prevent the blocked or corrosion of the socket 31 of described socket 3, on the basis of above-described embodiment one or enforcement two, socket 31 places that described housing 1 outside is positioned at described socket 3 are hinged with socket cover 8, referring to Figure 11, the jointed shaft of described socket cover 8 is arranged on the top of described socket 31.

In the present embodiment, on the interior capping of the side away from its jointed shaft of described socket cover 8, be provided with card division 81, the correspondence position of described plug 4 is provided with stopper protrusion 42, described plug 4 inserts after described socket 3, and described card division 81 is realized described socket cover 8 with described stopper protrusion 42 cooperations and is connected with the spacing of described plug 4.

Above-mentioned embodiment is just explained in detail the technical solution of the utility model; the utility model has more than and is only confined to above-described embodiment; those skilled in the art should be understood that; the above-mentioned principle of every foundation and the improvement of spirit on the utility model basis, substitute, all should be within protection range of the present utility model.

Claims

1. a power connector with locking device, is characterized in that: comprise

Housing (1), described housing (1) inside is provided with the unit switch (2) of connection or point deenergizing, the input terminal of described unit switch (2) is connected with power supply, and the knob (21) that is arranged on described housing (1) top is controlled the break-make of described unit switch (2) by action bars (22);

Socket (3) and the plug (4) coordinating with described socket (3), described socket (3) stretches into described housing (1) inside by the interface (11) being arranged on described housing (1); The binding post of described socket (3) is electrically connected with the lead-out terminal of described unit switch (2);

On the Plug Division of described plug (4), be provided with projection (41), described housing (1) inner side, and between described socket (3) and described unit switch (2), be provided with and coordinate with described projection (41) and described plug (4) and described socket (3) locked or the locking device of release, described locking device and described knob (21) interlock, be suitable for when described knob (21) rotates to switch connection position, described locking device is by described plug (4) and described socket (3) locking, when described knob (21) turns to switch open position, described locking device is removed described plug (4), the locking of described socket (3).

2. a kind of power connector with locking device according to claim 1, it is characterized in that: described locking device comprises the position-limited rack (5) that place, the maximum insertion position of described plug (4) is set, described position-limited rack (5) is provided with the catch (51) that coordinates locking with described projection (41), and described position-limited rack (5) is by linkage piece (6) and described knob (21) interlock; The middle part of described linkage piece (6) is hinged on the inwall of described housing (1) by screw (63), the lower end of described knob (21) is provided with eccentric drive portion (210), described knob (21) drives described linkage piece (6) to swing by described eccentric drive portion (210), and then drives described catch (51) to block or away from described projection (41).

3. a kind of power connector with locking device according to claim 2, is characterized in that: described position-limited rack (5) is annular, and fixing by support (9), and described position-limited rack (5) can rotate with respect to described support (9); The end of described plug (4) can be inserted in described position-limited rack (5); Described catch (51) is arranged on the inner ring surface of described position-limited rack (5), it comprises and approaches the front and back catch (511) that described plug (4) one sides arrange, and arrange vertically for strengthening the rotation catch (512) of described front and back catch (511) intensity; After described plug (4) inserts in described socket (3), described linkage piece (6) can drive described position-limited rack (5) to rotate to an angle while swinging, now, described front and back catch (511) are suitable for coordinating with described projection (41), stop that described plug (4) outwards extracts, realize described plug (4) locking.

4. a kind of power connector with locking device according to claim 3, it is characterized in that: the end coordinating with described position-limited rack (5) of described linkage piece (6) is provided with the breach (62) of " U " shape, on the outer ring surface of described position-limited rack (5), be provided with the projection (52) coordinating with described breach (62); One end coordinating with described knob (2) of described linkage piece (6) is provided with the through hole (61) of " T " font substantially, described through hole (61) comprises the transverse holes (610) take described linkage piece (6) middle part pin joint as the arc in the center of circle, and the upright opening (611) extending to the pin joint at described linkage piece (6) middle part, described action bars (22) is connected with described knob (21) through the transverse holes (610) of described through hole (61) end, and described eccentric drive portion (210) inserts in the upright opening (611) at described through hole (61) middle part; The track that the radian of described transverse holes (610) described linkage piece relative to described operating axis (22) (6) swings is consistent.

5. a kind of power connector with locking device according to claim 4, it is characterized in that: the horizontal bearing pin (23) of inserting in one end that described action bars (22) coordinates with described knob (21), the body of described action bars (22) is extended at least one end of described bearing pin (23), the length of described bearing pin (23) is greater than the width of described transverse holes (610), and is less than the length of described transverse holes (610); Described unit switch (2) when open position, described bearing pin (23) axially consistent with the length direction of described transverse holes (610); Described unit switch (2) is when on-position, axially having angle with the length direction of described transverse holes (610) of described bearing pin (23), and one end away from described action bars (22) of described bearing pin (23) is projected on the body of described linkage piece (6); The center of described knob (21) below is provided with and described action bars (22), described bearing pin (23) groove (24) coordinating of pegging graft.

6. a kind of power connector with locking device according to claim 5, it is characterized in that: the end of described eccentric drive portion (210) is provided with the hook portion (211) extending laterally, described hook portion (211) is passed described upright opening (611) and is extended to the below of described linkage piece (6); When the length direction of the bearing of trend of described hook portion (211) and described upright opening (611) is consistent, described eccentric drive portion (210) can exit from described upright opening (611); When the bearing of trend of described hook portion (211) departs from the length direction of described upright opening (611), described hook portion (211) is stuck in the lower surface of described linkage piece (6).

7. a kind of power connector with locking device according to claim 6, is characterized in that: described housing (1) inside is provided with for the positioner to described position-limited rack (5) location.

8. a kind of power connector with locking device according to claim 7, it is characterized in that: described positioner comprises lock dog (7), one end of described lock dog (7) is provided with rotating shaft (72), in described rotating shaft (72), be provided with torsion spring (73), described lock dog (7) is hinged on described housing (1) inner side by described rotating shaft (72); The other end of described lock dog (7) is provided with fixture block (71), on described position-limited rack (5), be provided with the draw-in groove (50) coordinating with described fixture block (71), described torsion spring (73) drives the sideway swivel of described lock dog to described position-limited rack (5), and is coordinated described position-limited rack (5) is located with described draw-in groove (50) by described fixture block (71); Described plug (4) inserts behind described socket (3) inside, described plug (4) the end described lock dog (7) of conflicting, and drive described lock dog (7) to rotate and make described fixture block (71) Fen Li with described draw-in groove (50) around described rotating shaft (72), to remove the locking position of described lock dog to described position-limited rack (5).

9. a kind of power connector with locking device according to claim 8, it is characterized in that: described housing (1) outside is positioned at the socket (31) of described socket (3) and locates to be hinged with socket cover (8), and the jointed shaft of described socket cover (8) is arranged on the top of described socket (31).

10. a kind of power connector with locking device according to claim 9, it is characterized in that: on the interior capping of the side away from its jointed shaft of described socket cover (8), be provided with card division (81), the correspondence position of described plug (4) is provided with stopper protrusion (42), described plug (4) inserts after described socket (3), and described card division (81) and described stopper protrusion (42) coordinate spacing connection that realizes described socket cover (8) and described plug (4).