CN209200288U - Electric connection coupler and its socket, automatic rebounding mechanism - Google Patents

Abstract

The utility model discloses a kind of electric connection coupler and its socket, automatic rebounding mechanism.The automatic rebounding mechanism is mounted in the socket of electric connection coupler, wherein the socket has upper cover, lower casing, the rotatable protective cover being installed between the upper cover and the lower casing, and first electrode, the upper cover has the guide groove for guiding the plug of the electric connection coupler by initial position rotation predetermined angular to conductive site, there is spliced eye corresponding with the second electrode on the plug on the protective cover, the second electrode can be inserted into from the spliced eye and be electrically connected when the plug is rotated into the conductive site with the first electrode, the automatic rebounding mechanism includes elastic component, one end is installed on this on lid, the other end is installed on the protective cover, wherein, the elastic component has the reset force that the plug for not being rotated into the conductive site can be reset to the initial position.The utility model provides safe operational, reliable connectivity and stable usability.

Description

Electric connection coupler and its socket, automatic rebounding mechanism

Technical field

The utility model relates to a kind of automatic rebounding mechanism and with its socket and electric connection coupler.

Background technique

A kind of electric connection coupler of current rotary conductive formula, mainly includes plug and socket, and wherein plug is After being inserted into socket, plug is rotated an angle to behind designated position on the electrode and socket that can make on plug by a direction Electrode be electrically connected completely, to realize safe energization connection.But for such electric connection coupler, sometimes because Designated position is not rotated to and unclamps plug for the faulty operation of user, such as plug, electrode on plug and may be inserted at this time The existing part of electrode on seat is in contact (but not completely attaching to) and causes entirely to be in virtual connection state with electrical circuit.If this is electrically connected It connects coupler to use for a long time under this virtual connection state, is easy to lead to the plastic part of surrounding because the calorific value of virtual connection position is excessively high Hot melt, and then lead to the generation of failure.Therefore, there is an urgent need to a kind of novel electric connection couplers, and above-mentioned function can be overcome to lack It falls into.

Utility model content

The purpose of the utility model is to provide a kind of electric connection coupler and its sockets, automatic rebounding mechanism, certainly by this Plug can be reset to initial position when plug is not rotated in place by dynamic rebounding mechanism, with safer reliable property Energy.

To achieve the goals above, the utility model provides a kind of automatic rebounding mechanism, it is characterized in that, the automatic rebounding Mechanism is mounted in the socket of electric connection coupler, and wherein the socket has upper cover, lower casing, is installed on the upper cover and the lower casing Between rotatable protective cover and first electrode, the upper cover have for guiding the plug of the electric connection coupler by first Beginning position rotates the guide groove of predetermined angular to conductive site, has on the protective cover corresponding with the second electrode on the plug Spliced eye, the second electrode can from the spliced eye be inserted into and when the plug is rotated into the conductive site with this first electricity Pole is electrically connected, which includes elastic component, and one end is installed on this on lid, and the other end is installed on the protective cover On, wherein the elastic component has the reset that the plug for not being rotated into the conductive site can be reset to the initial position Power.

In one or more embodiments of the utility model, which is spring, which is two, in diagonally right It should be set on the position in two opposite corners of the upper cover.

In one or more embodiments of the utility model, correspondence extends outward to form two wings on the periphery of the protective cover Portion is each formed with the first fixed column on the alar part, and one end of each spring is by being arranged on the corner of the upper cover The second fixed column and the upper cover be fixedly mounted, the other end of each spring is solid by first fixed column and the protective cover Dingan County's dress.

In one or more embodiments of the utility model, which further includes resilient cushion, passes through mounting groove It is installed on this on lid, part edge pair of the resilient cushion when the protective cover is in the initial position not rotated with the alar part It should contact.

In one or more embodiments of the utility model, each spring during the work time possessed by the reset force For 5N~30N；And/or the diameter of each spring is 5mm~6.5mm, length is 22~26mm；And/or the spring is qin Wire spring or stainless steel wire spring.

In one or more embodiments of the utility model, the diameter of each spring is 5.8mm, length 24mm.

To achieve the goals above, the utility model also provides a kind of socket, it is characterized in that, which includes institute as above The automatic rebounding mechanism stated.

In one or more embodiments of the utility model, which is plug bush structure, which includes inserting Tail portion and sleeve head are covered, and the sleeve head is formed with for the socket of second electrode insertion and electrically connects with the second electrode The interconnecting piece connect；The socket further includes the connecting terminal and terminal watt pad for installing the first electrode, wherein the connecting terminal It is formed with the accommodation space for sleeve tail portion insertion, the terminal watt pad has the connecting pin that face contact is formed with the sleeve tail portion Face, terminal screw are in contact with the connecting end surface and fix the sleeve tail portion in the fixing end of the connecting end surface and the connecting terminal Between face.

In one or more embodiments of the utility model, it is provided with grab on the fixation end face of the connecting terminal, with The fixation end face is provided with the hook portion matched with the grab on the corresponding sleeve tail portion；And/or

The first electrode includes two power electrodes and a grounding electrode, and each first electrode is by the wiring Terminal and the terminal watt pad assembling after be installed in the electrode fitting groove of the lower casing, and correspond to each first electrode this insert The back face that corresponding sleeve spring and the interconnecting piece of the first electrode are also respectively provided with inside and outside set head touches, Wherein, sleeve spring positioned at outside corresponding to the power electrode and the grounding electrode is installed by sliding block, corresponding In sleeve spring positioned inside of the power electrode be by further being extended to form by the corresponding electrode fitting groove Spring mounting groove installation with lower arcuate surface, sleeve spring positioned inside corresponding to the grounding electrode is by by right The spring mounting groove with lower arcuate surface that the electrode fitting groove answered further extends to form is installed or by another sliding block Installation；And/or

It is additionally provided with top pillar on the lower casing, which is installed by the activity of top pillar spring and can be along the direction of insertion of plug It moves up and down, and the top pillar top has positioning region, wherein the positioning region is and is correspondingly arranged in this when the plug is not inserted into Locating slot on protective cover side cooperates positioning, and is to be detached from after the plug is inserted in place from the locating slot.

To achieve the goals above, the utility model provides a kind of electric connection coupler again comprising has plug and such as The upper socket.

The utility model, can be when plug be rotated in place (i.e. conductive site) by plug by the automatic shoot back mechanism It is reset to initial position (i.e. plug is initially inserted into the position before socket does not rotate), to provide safer behaviour for user The property made, more structurally sound connectivity and more stable usability.

Detailed description of the invention

The decomposition diagram of the socket of the electric connection coupler of one preferred embodiment of Fig. 1 the utility model；

Front schematic view after the socket assembling that Fig. 2 is Fig. 1；

Fig. 3 is the structural schematic diagram of the plug of the electric connection coupler of the utility model；

Fig. 4 is the structural schematic diagram at the back side of the upper cover of the socket of Fig. 2, and the automatic rebounding of the utility model is shown The structure of mechanism；

Fig. 5 is the schematic perspective view of the spring of the automatic rebounding mechanism in Fig. 4；

Fig. 6 is the schematic perspective view of the connecting terminal in the socket of Fig. 1；

Fig. 7 is the schematic perspective view of the terminal watt pad in the socket of Fig. 1；

The first electrode and connecting terminal of plug bush structure after the socket assembling that Fig. 8 is Fig. 1, terminal watt pad pass through wiring spiral shell The structural schematic diagram of nail combination installation；

Fig. 9 is that the first electrode of the prior art combines the structural schematic diagram of installation with connecting terminal by terminal screw；

Figure 10 be after the first electrode of the socket of the electric connection coupler of the utility model is assembled in lower casing one compared with The top view of good embodiment；

Figure 11 is the side sectional view in the direction A-A along Figure 10；

Figure 12 is the decomposition diagram of the socket of the electric connection coupler of the another preferred embodiment of the utility model；

Figure 13 is the top view after the first electrode of the socket of Figure 12 is assembled in lower casing；

Figure 14 is the side sectional view in the direction B-B along Figure 12.

Specific embodiment

The electric connection coupler of one preferred embodiment of the utility model include plug 90 (as shown in Figure 3) and socket (such as Shown in Fig. 1~2).As shown in Figure 1, the socket have upper cover 2, lower casing 11, be installed between the upper cover 2 and the lower casing 11 can The protective cover 3 and first electrode of rotation, the first electrode is for example including two power electrodes being connected respectively with L line and N line 16 and a grounding electrode 14 being connected with ground wire.In conjunction with reference Fig. 2, which has a guide groove 200, the guide groove 200 include an insert port 201, a positioning port 202 and are connected to the connectivity slot of the insert port 201 and the positioning port 202 (in figure Do not show), which is initial position P1, which is conductive site P2, and Angle between initial position P1 and conductive site P2 is A, may be, for example, 60 °, and the guide groove 200 is for guiding this to insert First 90 by initial position P1 rotation one predetermined angular A (for example, 60 °) to conductive site P2.On the protective cover 3 have with Second electrode (for example including two power electrodes 96 shown in Fig. 3 and a grounding electrode 94) on the plug 90 is corresponding Spliced eye 301.Wherein, the second electrode on the plug 90 can be inserted into from the spliced eye 301 and be revolved in the plug 90 Be electrically connected when going to conductive site P2 with the first electrode, i.e., the power electrode 96 on the plug can correspond to on the socket Power electrode 16 completely attach to, the grounding electrode 94 on the plug can be corresponded to be connect completely with the grounding electrode 14 on the socket Touching, to realize safe electric connection.

As shown in figure 3, also there is a positioning block 91 on the plug 90, it can be along the side of the outer surface perpendicular to the plug 90 It moves in or out, and can be moved inward by the gearing of a unlocking knob 92 relative to the outer surface of the plug, i.e. retraction to I-I In the plug.Wherein, when the plug 90 is inserted into the socket, which can slide simultaneously along the guide groove 200 of the upper cover 2 The plug 90 is guided to be rotated into conductive site P2 by initial position P1, the locating piece 91 is when being in conductive site P2 That to pop up the plug outer and limited by the positioning port 202 and be fixed on the plug 90 in the socket, so may make this One electrode and the second electrode keep completely attaching to, and the plug is made to be in safe handling state.And when needing to unclamp plug, it can With by pressing the unlocking knob 92 so that in 91 retraction of the locating piece plug 90, so as to release the plug and the socket it Between positioning, so the plug can directly be extracted, or plug is anti-counterclockwise along the guide groove 200 (as shown in Figure 2) It is extracted again after to rotation to initial position P1.

In the embodiment shown in fig. 1, first electrode of the socket, for example including the power electrode 16 and ground connection electricity Pole 14 can be plug bush structure (specific structure will be described in detail in conjunction with Fig. 8 later), and pacify using a terminal watt pad 21 It is fixed in a connecting terminal 13 and through a terminal screw 20.In conjunction with shown in Figure 10~14, the power electrode 16 and should Grounding electrode 14 is by being to be respectively arranged in corresponding electrode on the lower casing 11 after the connecting terminal 13, the terminal watt pad 21 assembling In mounting groove (for example including power electrode mounting groove 116 and grounding electrode mounting groove 114) and it is limited.Also, correspond to The power electrode 16 and the grounding electrode 14, inside and outside be also respectively provided with corresponding sleeve spring 18 and contact therewith (back face of interconnecting piece 1613,1614 e.g. as shown in Figure 8 touches), to can ensure that on the first electrode and the plug Second electrode be reliably electrically connected.Sleeve bullet corresponding to the power electrode 16 and the grounding electrode 14, positioned at outside Spring 18 is to be installed respectively by electrode sliding block 8, ground connection sliding block 12.Sleeve spring corresponding to the power electrode 16, positioned inside 18 be (can by the spring mounting groove with lower arcuate surface further extended to form by the corresponding power electrode mounting groove 16 The spring mounting groove 1122 extended to form with reference to shown in Figure 11 by the grounding electrode mounting groove 114) installation.Corresponding to this Grounding electrode 14, the sleeve spring 18 positioned inside can be by further extending shape by the corresponding grounding electrode mounting groove 114 At spring mounting groove 1142 with lower arcuate surface (embodiment as shown in Figure 10,11) is installed, or another cunning can be passed through Block 122 installs (embodiment as shown in Figure 12,13).

Also there is a mounting post 10, which is to be pivotally connected to pacify by the mounting post 10 on the center of the lower casing 11 Dress.In other embodiments, it is also provided with insulation board 6 between the protective cover 3 and the first electrode, which can also lead to It crosses the mounting post 10 to be pivotally mounted, and is correspondingly arranged on sliding slot 61 on the insulation board 6, with for the second electrode on the plug It is inserted and conductive site P2 is slid by initial position P1 along it.

Fig. 1 is referred to preferably, combining, is also provided in the position that the back side of the protective cover 3 corresponds to the spliced eye 301 Sliding block 5 is slidably mounted in the sliding block mounting groove 305 (see Fig. 4) on the protective cover 3 by sliding block spring 4.Wherein, When the second electrode of the plug is inserted into from the spliced eye 301, which can be open to expose the cunning on the insulation board 6 Slot 61, so that the second electrode can be inserted into the sliding slot 61 and is rotated clockwise to along the sliding slot 61 by initial position P1 (see Fig. 2) Conductive site P2 (see Fig. 2)；And when the plug is not inserted into, it is closing which, which is under the reset response of the sliding block spring 4, The spliced eye 301, thus preventing the pollutants such as dust to fall into the socket by the spliced eye 301 leads to poor contact.

The socket can be fixed by the upper cover 2 and the lower casing 11 by rigging screw 9 after assembling.In the upper cover 2 Also a decorative panel 1 further can be installed by mounting screw 19, so that appearance is more beautiful for socket, the socket after assembling is just Face is as shown in Figure 2.It is also provided with label 22 on the socket, the application method or other warnings of socket can be marked thereon Label etc., these are not intended as limitations of the present invention.

Specifically, which also has automatic rebounding mechanism to the utility model, which is mounted to this In socket, such as it is mounted between the protective cover 3 and the upper cover 2.The automatic rebounding mechanism includes elastic component, and one end is peace Loaded in the upper cover 2, the other end is mounted on the protective cover 3, wherein the elastic component has and will can not be rotated into this and lead The plug 90 of electric position P2 is reset to the reset force of initial position P1.

In the present embodiment, as shown in figure 4, the elastic component can be spring 17, and the spring can be two, be in diagonal Ground is correspondingly arranged on the position in two opposite corners of the upper cover 2.In the embodiment shown in fig. 4, the protective cover 3 is outer Correspondence extends outward to form two alar parts 31 on week, is formed with the first fixed column 37 on each alar part 31, each spring 17 One end be that the second fixed column 27 on corresponding corner by the back side of the upper cover 2 is fixedly mounted with the upper cover 2, and it is each The other end of the spring 17 is fixedly mounted by first fixed column 37 and the protective cover 3.

In the present invention, possessed reset force can be 5N~30N to each spring 17 during the work time.Preferably Ground, as shown in figure 5, the diameter D of each spring may be, for example, 5mm~6.5mm, it preferably can be 5.8mm.The length of each spring 17 L may be, for example, 22~26mm, preferably can be 24mm.The fixing end of each spring 17 has an opening O, and bore may be, for example, 2mm.The spring 17 can be piano wire spring or stainless steel wire spring.It is, of course, understood that the elastic component is not limited to For spring, and the diameter of the spring 17, length etc. are also not limited to above-mentioned numerical value, according to the design needs, or other Numerical value, this is not intended as limitations of the present invention.

Preferably, the automatic rebounding mechanism may also include resilient cushion 15, can as shown in figure 4, simultaneously combinable refer to Fig. 1 Be installed in the upper cover 2 by a mounting groove 25, the resilient cushion 15 the protective cover 3 be in do not rotated initial position when with The corresponding contact of the part edge of the alar part 31.The material of the resilient cushion 15 can be TPU.Using the resilient cushion 15, this can protect Lead to breakage because the rebound impulse force of spring 17 is excessive between protective cover 3 and upper cover 2.

Preferably, as shown in fig. 6, the connecting terminal 13 includes opposite end face 131 and 132 and opposite end face 133 With 134, these end faces 131~134, which surround, forms an accommodation space 130.Wherein, screw hole 135 is additionally provided on the end face 131.

As shown in fig. 7, the terminal watt pad 21 is substantially in " n " font comprising be relatively fixed end face 211 and connecting end surface 212 and the fixation end face 211 and the intermediate end face 213 of the connecting end surface 212 are connected, is provided with spiral shell on the fixation end face 211 Hole 215.The connecting end surface 212 can preferably have a radian, such as be adapted with the outer surface of the first electrode.

As shown in figure 8, the first electrode can be plug bush structure, and by taking power electrode 16 as an example, the sleeve of the power electrode 16 Structure can be bent to form by a strip shaped electric poles, and be bent to form a sleeve head 161 and a sleeve tail portion 162, wherein this is inserted Set head 161 include by after bending two ends 1611 and 1612 jointly limit formed with so that the second electrode is inserted into Socket 1610 and the interconnecting piece 1613 and 1614 to be electrically connected with the second electrode of insertion.As shown in connection with fig. 1, exist When installation, it can also be correspondingly arranged sleeve spring 18 at the back side of interconnecting piece 1613 and 1614, to make 1613 He of interconnecting piece 1614 can keep being in close contact with the second electrode of insertion.The sleeve tail portion 162 is the receiving sky for being inserted into the connecting terminal 13 Between install in 130, the connecting end surface 212 of the terminal watt pad 21 be inserted into the accommodation space 130 and with 162 shape of sleeve tail portion At face contact, terminal screw 20 be across the screw hole 215 (see Fig. 7), the screw hole 135 (see Fig. 6) and with 212 phase of connecting end surface Contact, so as to fix the sleeve tail portion 162 between the connecting end surface 212 and the end face 132 of the connecting terminal 13.

And first electrode and connecting terminal by terminal screw combine the structure of installation as shown in figure 9, existing in the prior art First electrode (by taking power electrode 16 ' as an example) and connecting terminal 13 ' be that installation is directly tightened by terminal screw 20 ', when Access conducting wire tightens terminal screw 20, if power Relatively centralized (the i.e. screw end of terminal screw 20 and power electrode 16 ' tightened Sleeve tail portion 162 ' directly contact, contact area is small), then will lead to connecting part sleeve tail portion 162 ' deformation, deformation herein The other positions size that will affect plug bush structure changes.Compared with the prior art shown in Fig. 9, this reality as shown in Figure 8 With the novel design (i.e. increase terminal watt pad 20) by increasing stress dispersion at connecting terminal, when being linked into conducting wire (example Such as L line or N line or ground wire) after, screw end is the first mechanism with stress decentralized design, such as terminal when tightening terminal screw 20 Watt pad connecting end surface 212 formed face contact (terminal watt pad hardness be greater than terminal screw and first electrode hardness), then Stress dispersed structure is contacted with sleeve tail portion 162 again, to effectively prevent in the prior art because of stress caused by directly contacting Collection neutralizes the problem of plug bush structure deformation.

Preferably, as shown in figure 8, in the present invention, on the end face 132 (i.e. fixed end face) of the connecting terminal 13 It is additionally provided with grab 1322, is provided with and the grab 1322 on the end face of the sleeve tail portion 162 corresponding with the end face 1322 The hook portion 1622 matched is clamped by the cooperation of the grab 1322 and the hook portion 1622, the first electrode may make to connect with this Installation between line terminals 13 is more secured.

In a preferred embodiment of the utility model, as shown in Figure 10~11, the sleeve spring 18 positioned at outside is logical The electrode sliding block 8 and the ground connection sliding block 12 installation are crossed, and the sleeve spring 18 for being located inside is by the bullet with lower arcuate surface Spring mounting groove installation, to ensure each assembly of sleeve spring 18 in place.For example, as shown in figure 11, inside and outside the two of the grounding electrode 14 Side is respectively arranged with the sleeve spring 182 positioned inside and the sleeve spring 181 positioned at outside, and wherein the sleeve spring 181 is It is installed by the ground connection sliding block 12, which is by further being extended to form by the grounding electrode mounting groove 114 Spring mounting groove 1142 with lower arcuate surface install.

For embodiment shown in Figure 10~11, since the top (not indicating in figure) of the grounding electrode 14 is inserted in the plug After entering in the socket i.e. with grounding electrode holding on the plug is in electrical contact (rotates from initial position P1 to leading in the plug The grounding electrode 14 on grounding electrode 94 and the socket during electric position P2 on the plug keeps in electrical contact), therefore It will lead to tightening portion and the grounding electrode mounting groove 114 that the terminal screw 20 of the grounding electrode 14 is fixed in installation in rotary course Medial surface interfere, as shown in figure 11.In order to avoid the generation of this interference, in the another preferred embodiment of the utility model In, which can be corresponded to this interference portion and translated outward, as shown in Figure 12~14, i.e., expanded outward Grounding electrode mounting groove 114, still, because of the particularity of Shooting Technique, it is contemplated that a possibility that formed product and for guarantee should The normal assembly of sleeve spring 182, the utility model preferably pass through and additionally increase another sliding block 122, insert to install this Sleeve spring 182, so can the cooperation of sliding block and sleeve spring inside and outside the grounding electrode 14 is limited, from And can avoid install the grounding electrode 14 tighten screw 20 and the medial surface of the grounding electrode mounting groove 114 interferes.

Preferably, as shown in figure 12, the utility model also passes through the 77 activity installation of top pillar spring on the lower casing 11 of socket There is a top pillar 7, which can move up and down along the direction of insertion of the plug.After mounting, determine positioned at 7 top of top pillar Position portion (not indicating in figure) is the through-hole 67 on the insulation board 6 and can be with the locating slot 36 that is set to 3 side of protective cover Match positioning.Wherein, when plug is not inserted into, the positioning region of the top pillar 7 is matched with the locating slot 36 on the protective cover 3 Positioning is closed, rotates to limit the protective cover 3 and guarantees that socket is in initial position.And when a plug is to be inserted into the socket, it should Grounding electrode 94 (see Fig. 3) on plug is downwardly into socket, when the lower part and the top pillar 7 for being inserted into the grounding electrode 94 When the contact portion (not indicating in figure) of lower part is in contact, which will drive the top pillar 7 and moves down, until the top pillar 7 positioning region is detached from (i.e. plug is inserted in place) from the locating slot 36 of the protective cover 3, at this time i.e. rotatable plug, from And the rotation of the protective cover 3 can be driven by the rotation of plug.And during the plug is downwardly into, if the grounding electrode 94 are not downwardly into (i.e. the positioning region of the top pillar 7 is not completely disengaged with the locating slot 36 of the protective cover 3) in place, this is inserted Head will be limited and can not rotate.In the plug rotary course, if the plug is not rotated in place, the protective cover 3 is at this Under the action of automatic rebounding structure, which can be reset to the initial position.It is also same in the socket of embodiment as shown in Figure 1 The settable above structure of sample, the i.e. top pillar 7, the top pillar spring 77, the through-hole 67, the locating slot 36 etc., details are not described herein.

The electric connection coupler of the utility model is (being not powered at this time) after plug is inserted into socket in use, Plug is rotated to 60 ° in the direction of the clock, and to conductive site, (locating piece of plug springs into the positioning port of the guide groove of upper cover at this time It is interior, be powered at this time), it can use.Moreover, the utility model passes through the automatic rebounding mechanism that is arranged in socket (such as bullet Spring), if user does not rotate plug to designated position (such as conductive site P2) when in use, plug will be in the reset force of spring Under the action of be returned to initial position P1 (i.e. plug be just inserted into socket position) by force, so as to avoid the hair of virtual connection state It is raw.Therefore, the utility model significantly improves the functional defect of conventional socket (low current plug, socket), has safety Operability, reliable connectivity, stable usability.

Although the utility model is disclosed above with embodiment, so it is not intended to limit the utility model, any ripe This those skilled in the art is known, without departing from the spirit and scope of the utility model, when can be used for a variety of modifications and variations, therefore this is practical Novel protection scope is subject to the view scope of which is defined in the appended claims.

Claims (10)

1. a kind of automatic rebounding mechanism, which is characterized in that the automatic rebounding mechanism is mounted in the socket of electric connection coupler, Wherein the socket has upper cover, lower casing, the rotatable protective cover being installed between the upper cover and the lower casing and the first electricity Pole, the upper cover have for guiding the plug of the electric connection coupler to rotate predetermined angular leading to conductive site by initial position To slot, there is spliced eye corresponding with the second electrode on the plug, which can be from the grafting on the protective cover Hole is inserted into and is electrically connected when the plug is rotated into the conductive site with the first electrode, which includes:

Elastic component, one end are installed on this on lid, and the other end is installed on the protective cover, wherein the elastic component has can The plug for not being rotated into the conductive site is reset to the reset force of the initial position.

2. automatic rebounding mechanism according to claim 1, which is characterized in that the elastic component is spring, which is two, In on the position in two opposite corners for being diagonally correspondingly arranged in the upper cover.

3. automatic rebounding mechanism according to claim 2, which is characterized in that correspondence extends outwardly on the periphery of the protective cover Two alar parts are formed, are formed with the first fixed column on each alar part, one end of each spring is by being arranged in the upper cover The corner on the second fixed column and the upper cover be fixedly mounted, the other end of each spring be by first fixed column with The protective cover is fixedly mounted.

4. automatic rebounding mechanism according to claim 3, which is characterized in that further include resilient cushion, installed by mounting groove It connects on this on lid, the resilient cushion is corresponding with the part edge of the alar part when the protective cover is in the initial position not rotated Touching.

5. according to automatic rebounding mechanism described in Claims 2 or 3 or 4, which is characterized in that each spring is during the work time The possessed reset force is 5N~30N；And/or the diameter of each spring is 5mm~6.5mm, length is 22~26mm； And/or the spring is piano wire spring or stainless steel wire spring.

6. automatic rebounding mechanism according to claim 5, which is characterized in that the diameter of each spring is 5.8mm, length For 24mm.

7. a kind of socket, which is characterized in that the socket includes the automatic rebounding as described in claim 1~6 any claim Mechanism.

8. socket according to claim 7, which is characterized in that the first electrode is plug bush structure, which includes Sleeve tail portion and sleeve head, and the sleeve head be formed with for the second electrode insertion socket and with the second electrode electrical property The interconnecting piece of connection；The socket further includes the connecting terminal and terminal watt pad for installing the first electrode, wherein the terminals Son is formed with the accommodation space for sleeve tail portion insertion, and the terminal watt pad has the connection that face contact is formed with the sleeve tail portion End face, terminal screw are in contact with the connecting end surface and fix the sleeve tail portion in the fixation of the connecting end surface and the connecting terminal Between end face.

9. socket according to claim 8, which is characterized in that it is provided with grab on the fixation end face of the connecting terminal, The hook portion matched with the grab is provided on the sleeve tail portion corresponding with the fixation end face；And/or

The first electrode includes two power electrodes and a grounding electrode, and each first electrode is by the connecting terminal It is installed in the electrode fitting groove of the lower casing with after the terminal watt pad assembling, and corresponds to the sleeve head of each first electrode The back face that corresponding sleeve spring and the interconnecting piece of the first electrode are also respectively provided with inside and outside portion touches, In, sleeve spring positioned at outside corresponding to the power electrode and the grounding electrode is installed by sliding block, is corresponded to Sleeve spring positioned inside of the power electrode is the tool by further being extended to form by the corresponding electrode fitting groove There is the spring mounting groove of lower arcuate surface to install, sleeve spring positioned inside corresponding to the grounding electrode is by by corresponding to The electrode fitting groove further extend to form with lower arcuate surface spring mounting groove installation or pacified by another sliding block Dress；And/or

It is additionally provided with top pillar on the lower casing, which is installed by the activity of top pillar spring and can be above and below the direction of insertion of plug It is mobile, and the top pillar top has positioning region, wherein the positioning region is and is correspondingly arranged in the protection when the plug is not inserted into Locating slot on lid side cooperates positioning, and is to be detached from after the plug is inserted in place from the locating slot.

10. a kind of electric connection coupler, which is characterized in that include plug and such as claim 7~9 any claim institute The socket stated.