CN109861039B

CN109861039B - Safe type two-way pushing structure

Info

Publication number: CN109861039B
Application number: CN201811569967.6A
Authority: CN
Inventors: 林世峰
Original assignee: Shenzhen Skt Electrical Technology Co ltd
Current assignee: Shenzhen Skt Electrical Technology Co ltd
Priority date: 2018-12-21
Filing date: 2018-12-21
Publication date: 2024-04-23
Anticipated expiration: 2038-12-21
Also published as: CN109861039A

Abstract

The invention discloses a safe two-plug pushing structure which comprises a bottom shell, wherein an anode contact seat, an anode transition contact strip, a cathode transition contact strip and a cathode contact seat are fixed on the bottom shell, an anode plug bush is arranged on the anode contact seat, a cathode plug bush is arranged on the cathode contact seat, a live wire conducting strip and a zero wire conducting strip which are respectively and electrically connected with a mains supply live wire end and a zero wire end are also arranged on the bottom shell, a first on-off switch structure is arranged between the anode contact seat and the anode transition contact strip, a second on-off switch structure is arranged between the anode transition contact strip and the live wire conducting strip, and a third on-off switch structure is arranged between the cathode contact seat and the cathode transition contact strip. The pushing structure is arranged in the two-hole socket, so that the safety performance of the two-hole socket can be effectively improved, and the two-pin socket can be electrified only when the inserting pieces of the two-pin plug are simultaneously inserted into the corresponding inserting sleeves, so that the occurrence of electric shock accidents of children is effectively avoided.

Description

Safe type two-way pushing structure

Technical Field

The invention relates to the technical field of socket internal structures, in particular to a safe two-plug pushing structure.

Background

The socket is also called as a power socket and a switch socket. The socket is one or more than one circuit wiring plug-in seat, through which various wiring can be plugged in, so as to be convenient for being connected with other circuits, and through connection and disconnection between the circuit and the copper piece, the effect of connecting and disconnecting the circuit is achieved, and the socket is an essential circuit connecting device when an electric appliance is connected with a power supply.

With the gradual enhancement of the safety awareness of electricity consumption, the safety protection requirements of people on the socket are also higher and higher. In the prior art, in the aspect of safety protection, a shutter controlled by a spring is generally arranged in the jack, but the shutter only plays a primary protection role, and a metal plug bush of the jack is still in an electrified state. How to enable the two-hole plug-in structure to be electrified only when the two-pin plug is plugged in, and the overall safety performance of the plug-in structure is improved, so that the problem to be solved by the invention is solved.

Disclosure of Invention

The present invention is directed to a safe two-plug pushing structure, which solves the above-mentioned problems in the prior art.

In order to achieve the above purpose, the present invention provides the following technical solutions:

The safe two-plug pushing structure comprises a bottom shell, wherein an anode contact seat, an anode transition contact strip, a cathode transition contact strip and a cathode contact seat are fixed on the bottom shell, an anode plug bush is arranged on the anode contact seat, a cathode plug bush is arranged on the cathode contact seat, a live wire conducting strip and a zero wire conducting strip which are respectively and electrically connected with a mains wire end and a zero wire end are also arranged on the bottom shell, a first on-off switch structure is arranged between the anode contact seat and the anode transition contact strip, a second on-off switch structure is arranged between the anode transition contact strip and the live wire conducting strip, a third on-off switch structure is arranged between the cathode contact seat and the cathode transition contact strip, a fourth on-off switch structure is arranged between the cathode transition contact strip and the zero wire conducting strip, and a first pushing mechanism for triggering the first on-off switch structure and the fourth on-off switch structure simultaneously is arranged on the bottom shell; the bottom shell is also provided with a second pushing mechanism for triggering the second on-off switch structure and the third on-off switch structure simultaneously.

As a further scheme of the invention, the driving end of the first pushing mechanism is provided with a first wedge-shaped block, and the first wedge-shaped block is positioned above the positive electrode plug bush; the driving end of the second pushing mechanism is provided with a second wedge-shaped block, and the second wedge-shaped block is positioned above the negative electrode plug bush.

As a further scheme of the invention, a fixed frame is arranged on the bottom shell, a first accommodating through hole and a second accommodating through hole for installing a positive electrode plug bush and a negative electrode plug bush are respectively arranged in the middle of the fixed frame, a first sliding hole communicated with the first accommodating through hole is arranged at the front end of the fixed frame, a second sliding hole communicated with the second accommodating through hole is arranged at the rear end of the fixed frame, and a first guiding chute and a second guiding chute are respectively arranged at the left side and the right side of the fixed frame;

The first pushing mechanism comprises a first seat plate, a first sliding bar, a first pushing arm for pushing the first on-off switch structure and a fourth pushing arm for pushing the fourth on-off switch structure, a first wedge block is arranged on the rear end face of the first seat plate, the first wedge block penetrates through the first sliding hole and extends into the first accommodating through hole, the left side of the first seat plate is extended backwards to form a first sliding bar, the first sliding bar is in sliding fit in the first guide sliding groove, and the first pushing arm and the fourth pushing arm are fixed on the outer side wall of the first sliding bar;

The second pushing mechanism comprises a second seat plate, a second sliding bar, a second pushing arm for pushing the second on-off switch structure and a third pushing arm for pushing the third on-off switch structure, a second wedge block is mounted on the front end face of the second seat plate, the second wedge block penetrates through the second sliding hole and extends into the second accommodating through hole, the second sliding bar extends forwards on the right side of the second seat plate, the second sliding bar is in sliding fit in the second guiding sliding groove, and the second pushing arm and the third pushing arm are fixed on the outer side wall of the second sliding bar.

As a further scheme of the invention, the first on-off switch structure comprises a positive electrode fixing contact piece and a first positive electrode swinging contact piece, wherein the positive electrode fixing contact piece is bent and extended upwards from a positive electrode contact piece seat, the first positive electrode swinging contact piece is bent and extended upwards from the left end of a positive electrode transition contact piece strip, and the first positive electrode swinging contact piece corresponds to a first pushing arm;

The second on-off switch structure comprises a second positive electrode swing contact piece and a fire wire fixing contact piece, the right end of the positive electrode transition contact piece is bent and extended upwards, the fire wire fixing contact piece extends upwards from the end part of the fire wire conducting bar, and the second positive electrode swing contact piece corresponds to the second pushing arm;

The third three-way switch structure comprises a negative electrode fixed contact piece and a first negative electrode swing contact piece, wherein the negative electrode fixed contact piece is bent and extended upwards from a negative electrode contact piece seat, the first negative electrode swing contact piece is bent and extended upwards from the right end of a negative electrode transition contact piece, and the first negative electrode swing contact piece corresponds to a third pushing arm;

the fourth switch structure comprises a second negative electrode swing contact piece and a zero line fixed contact piece, wherein the left end of the negative electrode transition contact piece is bent upwards, the second negative electrode swing contact piece extends upwards, the end part of the zero line conducting bar extends upwards, and the second negative electrode swing contact piece corresponds to the fourth push arm.

As a further scheme of the invention, a left baffle plate is extended on the left side of the fixed frame, and a first plate hole for the first on-off switch structure to penetrate out and a fourth plate hole for the fourth on-off switch structure to penetrate out are respectively formed on the left baffle plate; the right side of the fixed frame is extended with a right baffle plate hole, and a second baffle plate hole for the second switch structure to penetrate out and a third baffle plate hole for the third switch structure to penetrate out are respectively formed in the right baffle plate.

As a further scheme of the invention, the first pushing mechanism further comprises a first reset spring and a first spring seat plate fixed on the bottom shell, one end of the first reset spring is connected with the front end face of the first seat plate, and the other end of the first reset spring is connected with the rear end face of the first spring seat plate;

the second pushing mechanism further comprises a second reset spring and a second spring seat plate fixed on the bottom shell, one end of the second reset spring is connected with the rear end face of the second seat plate, and the other end of the second reset spring is connected with the front end face of the second spring seat plate.

As a further scheme of the invention, the invention further comprises a signal lamp for displaying power on, wherein two electrode ends of the signal lamp are respectively and electrically connected with the positive electrode contact sheet seat and the negative electrode contact sheet seat through wires.

The invention further provides a locking mechanism, the locking mechanism comprises a transverse swinging frame capable of moving up and down and swinging, the right end of the first seat plate extends to form a first poking part, the left side of the front end of the second sliding bar extends to form a second poking part, the left end of the transverse swinging frame is provided with a wedge surface corresponding to the first poking part, and the right end of the transverse swinging frame is provided with a wedge surface corresponding to the second poking part.

As a further scheme of the invention, the locking mechanism further comprises a locking portal frame, a group of vertical guide grooves are formed in the inner side wall of the locking portal frame, swing pin shafts extend from the front end face and the rear end face of the middle of the transverse swing frame, the swing pin shafts are slidably arranged in the vertical guide grooves, first spring connecting portions are respectively arranged at two ends of the transverse swing frame, a group of second spring connecting portions are correspondingly arranged on the locking portal frame, and an extension spring is connected between the first spring connecting portions and the second spring connecting portions.

A socket comprising the above-described safety type two-pin push structure.

Compared with the prior art, the invention has the beneficial effects that: only when two inserting sheets are inserted simultaneously, the first poking part of the first seat board butts against the left end of the transverse swinging frame, the second poking part of the second sliding bar butts against the right end of the transverse swinging frame, and the elasticity of the two stretching springs is overcome, so that the transverse swinging frame descends along the vertical guide groove, and a circuit can be conducted at the moment; only when electric power is switched on between positive pole contact pad, negative pole contact pad and the commercial power, the signal lamp just can light, and the setting of signal lamp makes things convenient for people to know and inserts the electric structure and is in under the normal operating condition, if each on-off switch structure in the propelling movement structure appears contacting failure or when unable contact, electric power can not be switched on between positive pole contact pad, negative pole contact pad and the commercial power, then the signal lamp also can not be lighted.

Drawings

FIG. 1 is a schematic perspective view of a safety type two-pin pushing structure;

FIG. 2 is a schematic perspective view of a safety type two-insert pushing structure with the bottom case removed;

FIG. 3 is a schematic top perspective view of a safety two-insert push structure with the bottom shell and the fixed frame removed;

FIG. 4 is a schematic bottom perspective view of a safety two-insert push structure with the bottom shell and the fixed frame removed;

FIG. 5 is a schematic perspective view of a fixed frame in a safety type two-pin pushing structure;

FIG. 6 is a schematic perspective view of a locking mechanism in a safety type two-pin push mechanism;

FIG. 7 is a schematic perspective view of a lateral swing frame in a safety type two-pin pushing structure;

fig. 8 is a schematic structural view of the safety type two-pin pushing structure when the transverse swinging frame swings.

In the figure: 100-bottom shell, 101-fixed frame, 1011-first guide chute, 1012-second guide chute, 102-first receiving through hole, 103-second receiving through hole, 104-left baffle plate, 1041-fourth baffle plate hole, 1042-first baffle plate hole, 105-right baffle plate, 1051-third baffle plate hole, 1052-second baffle plate hole, 106-first sliding hole, 107-second sliding hole, 200-fourth switch structure, 300-first switch structure, 400-third switch structure, 500-second switch structure, 600-signal lamp, 1-positive electrode contact pad, 11-positive electrode plug bush, 12-positive electrode fixed contact pad, 2-negative electrode contact pad, 21-negative electrode plug bush, 22-negative electrode fixed contact pad, 3-positive transition contact strip, 31-first positive swing contact, 32-second positive swing contact, 4-negative transition contact strip, 41-second negative swing contact, 42-first negative swing contact, 5-live wire contact strip, 51-live wire fixed contact, 6-neutral wire contact strip, 61-neutral wire fixed contact, 7-locking mechanism, 71-locking portal, 711-vertical guide slot, 72-second spring connection, 73-extension spring, 74-first spring connection, 75-lateral swing frame, 751-swing pin, 8-first pushing mechanism, 81-first seat plate, 82-first sliding strip, 83-fourth push arm, 84-first push arm, 85-first return spring, 86-first spring seat plate, 87-first wedge block, 9-second pushing mechanism, 91-second seat plate, 92-second sliding bar, 93-second pushing arm, 94-third pushing arm, 95-second return spring, 96-second spring seat plate, 97-second wedge block, 98-second toggle part.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1 to 8, the present invention provides a technical solution: the safe two-plug pushing structure comprises a bottom shell 100, wherein a positive electrode contact seat 1, a positive electrode transition contact strip 3, a negative electrode transition contact strip 4 and a negative electrode contact seat 2 are fixed on the bottom shell 100, a positive electrode plug bush 11 is installed on the positive electrode contact seat 1, a negative electrode plug bush 21 is installed on the negative electrode contact seat 2, a live wire conducting strip 5 and a zero wire conducting strip 6 which are respectively and electrically connected with a mains wire end and a zero wire end are also installed on the bottom shell 100, a first on-off switch structure 300 is arranged between the positive electrode contact seat 1 and the positive electrode transition contact strip 3, a second on-off switch structure 500 is arranged between the positive electrode transition contact strip 3 and the live wire conducting strip 5, a third on-off switch structure 400 is arranged between the negative electrode contact seat 2 and the negative electrode transition contact strip 4, a fourth on-off switch structure 200 is arranged between the negative electrode transition contact strip 4 and the zero wire conducting strip 6, and a first pushing mechanism 8 for triggering the first on-off switch structure 300 and the fourth on-off switch structure 200 is installed on the bottom shell 100; the bottom case 100 is further provided with a second pushing mechanism 9 for simultaneously triggering the second and third on-off switch structures 500 and 400.

The driving end of the first pushing mechanism 8 is provided with a first wedge-shaped block 87, and the first wedge-shaped block 87 is positioned above the positive electrode plug bush 11; the driving end of the second pushing mechanism 9 is provided with a second wedge-shaped block 97, and the second wedge-shaped block 97 is located above the negative electrode plug bush 21.

When only one inserting piece is inserted into the positive electrode plug bush 11, the first pushing mechanism 8 can only be triggered to work, so that the first on-off switch structure 300 and the fourth on-off switch structure 200 are communicated, but the second on-off switch structure 500 and the third on-off switch structure 400 are still in a power-off state, and therefore, no matter a line corresponding to the end of a mains supply wire to the positive electrode plug bush 11 or a line corresponding to the end of the mains supply wire to the negative electrode plug bush 21 is in a power-off state, even if a child inserts a single conductive object into one plug bush due to curiosity, an electric shock accident cannot occur.

Preferably, a fixed frame 101 is mounted on the bottom shell 100, a first accommodating through hole 102 and a second accommodating through hole 103 for mounting the positive electrode plug bush 11 and the negative electrode plug bush 21 are respectively formed in the middle of the fixed frame 101, a first sliding hole 106 communicated with the first accommodating through hole 102 is formed at the front end of the fixed frame 101, a second sliding hole 107 communicated with the second accommodating through hole 103 is formed at the rear end of the fixed frame 101, and a first guide chute 1011 and a second guide chute 1012 are respectively mounted at the left side and the right side of the fixed frame 101;

The first pushing mechanism 8 comprises a first seat board 81, a first sliding bar 82, a first pushing arm 84 for pushing the first on-off switch structure 300 and a fourth pushing arm 83 for pushing the fourth on-off switch structure 200, a first wedge block 87 is installed on the rear end surface of the first seat board 81, the first wedge block 87 penetrates through the first sliding hole 106 and extends into the first accommodating through hole 102, the left side of the first seat board 81 is extended backwards to form a first sliding bar 82, the first sliding bar 82 is in sliding fit in the first guide chute 1011, and the first pushing arm 84 and the fourth pushing arm 83 are fixed on the outer side wall of the first sliding bar 82;

When the insert is inserted into the positive electrode plug bush 11, the insert will press against the first wedge block 87, the first sliding bar 82 moves forward under the pushing of the first wedge block 87, and the first push arm 84 and the fourth push arm 83 trigger the corresponding first on-off switch structure 300 and fourth on-off switch structure 200 to be turned on.

The second pushing mechanism 9 comprises a second seat board 91, a second sliding bar 92, a second pushing arm 93 for pushing the second on-off switch structure 500 and a third pushing arm 94 for pushing the third on-off switch structure 400, a second wedge block 97 is installed on the front end face of the second seat board 91, the second wedge block 97 penetrates through the second sliding hole 107 and extends into the second accommodating through hole 103, the second sliding bar 92 extends forwards on the right side of the second seat board 91, the second sliding bar 92 is in sliding fit in the second guiding chute 1012, and the second pushing arm 93 and the third pushing arm 94 are fixed on the outer side wall of the second sliding bar 92.

When the insert is inserted into the negative electrode plug bush 21, the insert will press against the second wedge block 97, the second sliding bar 92 will move forward under the pushing of the second wedge block 97, and the second pushing arm 93 and the third pushing arm 94 will trigger the corresponding second on-off switch structure 500 and third on-off switch structure 400 to be turned on.

The first pushing mechanism 8 and the second pushing mechanism 9 are reasonable in structural design and arrangement, flexible and reliable in movement and convenient to assemble and disassemble.

Preferably, the first on-off switch structure 300 includes a positive fixed contact 12 extending by bending upwards from the positive contact base 1 and a first positive swinging contact 31 extending by bending upwards from the left end of the positive transition contact strip 3, where the first positive swinging contact 31 corresponds to the first pushing arm 84; the first pushing arm 84 pushes the first positive electrode swing contact 31 to contact and connect to the positive electrode fixed contact 12, so that the first on-off switch structure 300 is turned on.

The second on-off switch structure 500 comprises a second positive electrode swinging contact 32, which is bent and extended upwards from the right end of the positive electrode transition contact strip 3, and a live wire fixing contact 51, which is extended upwards from the end of the live wire conducting strip 5, wherein the second positive electrode swinging contact 32 corresponds to the second pushing arm 93; the second pushing arm 93 pushes the second positive electrode swing contact 32 to contact and connect to the live wire fixed contact 51, so that the second on-off switch structure 500 is turned on.

The third three-way switch structure 400 includes a negative fixed contact 22 extending by bending the negative contact base 2 upwards and a first negative swing contact 42 extending by bending the right end of the negative transition contact strip 4 upwards, where the first negative swing contact 42 corresponds to the third push arm 94; the third push arm 94 pushes the first negative swing contact 42 to contact the negative fixed contact 22, so that the third three-way switch structure 400 is turned on.

The fourth switch structure 200 includes a second negative swing contact 41 extending from the left end of the negative transition contact strip 4 in an upward bending manner, and a neutral fixed contact 61 extending from the end of the neutral conductive strip 6 in an upward direction, where the second negative swing contact 41 corresponds to the fourth push arm 83; the fourth push arm 83 pushes the second negative swing contact 41 to contact the neutral wire fixed contact 61, so that the fourth disconnection switch structure 200 is turned on.

Preferably, a left baffle plate 104 extends from the left side of the fixed frame 101, and a first plate hole 1042 through which the first on-off switch structure 300 passes and a fourth plate hole 1041 through which the fourth on-off switch structure 200 passes are respectively formed on the left baffle plate 104; the right side of the fixed frame 101 extends to form a right baffle plate 105, and a second plate hole 1052 through which the second on-off switch structure 500 passes and a third plate hole 1051 through which the third on-off switch structure 400 passes are respectively formed on the right baffle plate 105. The arrangement of the left baffle plate 104 and the right baffle plate 105 can play a certain protection role.

Preferably, the first pushing mechanism 8 further includes a first return spring 85 and a first spring seat plate 86 fixed on the bottom case 100, one end of the first return spring 85 is connected with a front end surface of the first seat plate 81, and the other end of the first return spring 85 is connected with a rear end surface of the first spring seat plate 86. The first return spring 85 is arranged, so that when the inserting piece is separated from the positive electrode plug bush 11, the corresponding first pushing mechanism 8 can be reset.

The second pushing mechanism 9 further includes a second return spring 95 and a second spring seat plate 96 fixed on the bottom case 100, one end of the second return spring 95 is connected with the rear end surface of the second seat plate 91, and the other end of the second return spring 95 is connected with the front end surface of the second spring seat plate 96. The second return spring 95 is arranged, so that when the inserting piece is separated from the negative electrode plug bush 21, the corresponding second pushing mechanism 9 can be reset.

As another embodiment of the present invention, the present invention further includes a signal lamp 600 for displaying power on, and two electrode terminals of the signal lamp 600 are electrically connected to the positive electrode contact pad 1 and the negative electrode contact pad 2 through wires, respectively. Only when the electric power between the positive electrode contact pad 1, the negative electrode contact pad 2 and the commercial power is switched on, the signal lamp 600 can be lightened, the setting of the signal lamp 600 is convenient for people to know whether the plug-in structure is in a normal working state, and if the contact failure or the contact failure occurs in each on-off switch structure in the pushing structure, the electric power between the positive electrode contact pad 1, the negative electrode contact pad 2 and the commercial power cannot be switched on, so that the signal lamp 600 can not be lightened.

As another embodiment of the present invention, as shown in fig. 6-8, the present invention further includes a locking mechanism 7, where the locking mechanism 7 includes a swing frame 75 capable of moving up and down and swinging, a first toggle portion extends from a right end of the first seat plate 81, a second toggle portion 98 extends from a left side of a front end of the second sliding strip 92, a wedge surface corresponding to the first toggle portion is provided on a left end of the swing frame 75, and a wedge surface corresponding to the second toggle portion 98 is provided on a right end of the swing frame 75.

The locking mechanism 7 further comprises a locking door frame 71, a group of vertical guide grooves 711 are formed in the inner side wall of the locking door frame 71, swing pin shafts 751 are respectively extended from the front end face and the rear end face in the middle of the transverse swing frame 75, the swing pin shafts 751 are slidably arranged in the vertical guide grooves 711, first spring connecting portions 74 are respectively arranged at two ends of the transverse swing frame 75, a group of second spring connecting portions 72 are correspondingly arranged on the locking door frame 71, and extension springs 73 are connected between the first spring connecting portions 74 and the second spring connecting portions 72.

The added locking mechanism 7 further improves the safety performance of the invention.

If the locking mechanism 7 is not provided, when only one inserting piece is inserted into the positive electrode plug bush 11, the first pushing mechanism 8 can only be triggered to work, so that the first on-off switch structure 300 is communicated with the fourth on-off switch structure 200, at the moment, the other inserting piece is continuously inserted into the negative electrode plug bush 21, the corresponding second on-off switch structure 500 is communicated with the third on-off switch structure 400, and at the moment, the positive electrode plug bush 11 is in an electrified state, and electric shock is likely to occur.

In the invention, as shown in fig. 8, when one inserting sheet is inserted into the negative electrode plug bush 21, the second poking part 98 extending from the left side of the front end of the second sliding bar 92 abuts against the right end of the transverse swinging frame 75, so that the transverse swinging frame 75 rotates around the swinging pin shaft 751, the left end of the transverse swinging frame 75 is lifted, the left end of the lifted transverse swinging frame 75 can block the first seat plate 81 from moving forwards, and other inserting sheets can not drive the first wedge-shaped block 87 corresponding to the positive electrode plug bush 11, so that the circuit can not be conducted all the time.

When one insert is inserted into the positive electrode insert 11, the other inserts can not drive the second wedge blocks 97 corresponding to the negative electrode insert 21, and the principle is similar to that described above, and the description is omitted.

Only when two inserting sheets are inserted simultaneously, the first poking part of the first seat board 81 butts against the left end of the transverse swinging frame 75, meanwhile, the second poking part 98 of the second sliding bar 92 butts against the right end of the transverse swinging frame 75, and simultaneously, the elasticity of the two stretching springs 73 is overcome, so that the transverse swinging frame 75 descends along the vertical guide groove 711, and the circuit can be conducted.

A socket comprising the above-described safety type two-pin push structure. The pushing structure is arranged inside the two-hole socket, so that the safety performance of the two-hole socket can be effectively improved, and only the inserting piece of the two-pin plug is simultaneously inserted into the corresponding inserting sleeve to be electrified, so that the occurrence of electric shock accidents of children is effectively avoided.

The working principle of the invention is as follows: only when two inserting sheets are inserted simultaneously, the first poking part of the first seat board 81 butts against the left end of the transverse swinging frame 75, meanwhile, the second poking part 98 of the second sliding bar 92 butts against the right end of the transverse swinging frame 75, and simultaneously, the elasticity of the two stretching springs 73 is overcome, so that the transverse swinging frame 75 descends along the vertical guide groove 711, and a circuit can be conducted at the moment; only when the electric power between the positive electrode contact pad 1, the negative electrode contact pad 2 and the commercial power is switched on, the signal lamp 600 can be lightened, the setting of the signal lamp 600 is convenient for people to know whether the plug-in structure is in a normal working state, and if the contact failure or the contact failure occurs in each on-off switch structure in the pushing structure, the electric power between the positive electrode contact pad 1, the negative electrode contact pad 2 and the commercial power cannot be switched on, so that the signal lamp 600 can not be lightened.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The utility model provides a two promotion structures of inserting of safe type, includes drain pan (100), its characterized in that: the positive electrode contact strip (3), the negative electrode transition contact strip (4) and the negative electrode contact strip (2) are fixed on the bottom shell (100), a positive electrode plug bush (11) is installed on the positive electrode contact strip (1), a negative electrode plug bush (21) is installed on the negative electrode contact strip (2), a live wire conducting strip (5) and a zero wire conducting strip (6) which are respectively and electrically connected with a commercial power live wire end and a zero wire end are also installed on the bottom shell (100), a first on-off switch structure (300) is arranged between the positive electrode contact strip (1) and the positive electrode transition contact strip (3), a second on-off switch structure (500) is arranged between the positive electrode transition contact strip (3) and the live wire conducting strip (5), a third on-off switch structure (400) is arranged between the negative electrode contact strip (2) and the negative electrode transition contact strip (4), a fourth on-off switch structure (200) is arranged between the negative electrode transition contact strip (4) and the zero wire conducting strip (6), and the first on-off switch structure (200) is arranged on the bottom shell (100), and the first on-off switch structure (200) is simultaneously triggered; the bottom shell (100) is also provided with a second pushing mechanism (9) for triggering the second switch-off structure (500) and the third switch-off structure (400) simultaneously;

The driving end of the first pushing mechanism (8) is provided with a first wedge-shaped block (87), and the first wedge-shaped block (87) is positioned above the positive electrode plug bush (11); the driving end of the second pushing mechanism (9) is provided with a second wedge-shaped block (97), and the second wedge-shaped block (97) is positioned above the negative electrode plug bush (21);

A fixed frame (101) is arranged on the bottom shell (100), a first accommodating through hole (102) and a second accommodating through hole (103) for installing a positive electrode plug bush (11) and a negative electrode plug bush (21) are respectively formed in the middle of the fixed frame (101), a first sliding hole (106) communicated with the first accommodating through hole (102) is formed in the front end of the fixed frame (101), a second sliding hole (107) communicated with the second accommodating through hole (103) is formed in the rear end of the fixed frame (101), and a first guide chute (1011) and a second guide chute (1012) are respectively arranged on the left side and the right side of the fixed frame (101);

The first pushing mechanism (8) comprises a first seat plate (81), a first sliding bar (82), a first pushing arm (84) for pushing the first on-off switch structure (300) and a fourth pushing arm (83) for pushing the fourth on-off switch structure (200), a first wedge block (87) is arranged on the rear end face of the first seat plate (81), the first wedge block (87) penetrates through a first sliding hole (106) and extends into a first accommodating through hole (102), the left side of the first seat plate (81) is extended backwards to form a first sliding bar (82), the first sliding bar (82) is in sliding fit in a first guide sliding groove (1011), and the first pushing arm (84) and the fourth pushing arm (83) are fixed on the outer side wall of the first sliding bar (82);

The second pushing mechanism (9) comprises a second seat plate (91), a second sliding bar (92), a second pushing arm (93) for pushing the second on-off switch structure (500) and a third pushing arm (94) for pushing the third on-off switch structure (400), a second wedge block (97) is arranged on the front end face of the second seat plate (91), the second wedge block (97) penetrates through a second sliding hole (107) and extends into a second accommodating through hole (103), the right side of the second seat plate (91) is forwards extended with the second sliding bar (92), the second sliding bar (92) is in sliding fit in a second guide chute (1012), and the second pushing arm (93) and the third pushing arm (94) are fixed on the outer side wall of the second sliding bar (92);

the first on-off switch structure (300) comprises a positive electrode fixed contact (12) and a first positive electrode swinging contact (31), wherein the positive electrode fixed contact (12) is bent and extended upwards from a positive electrode contact seat (1), the first positive electrode swinging contact (31) is bent and extended upwards from the left end of a positive electrode transition contact strip (3), and the first positive electrode swinging contact (31) corresponds to a first pushing arm (84);

The second on-off switch structure (500) comprises a second positive electrode swinging contact (32) which is bent and extended upwards at the right end of the positive electrode transition contact strip (3) and a live wire fixing contact (51) which is extended upwards at the end part of the live wire conducting strip (5), and the second positive electrode swinging contact (32) corresponds to the second pushing arm (93);

The third three-way disconnecting switch structure (400) comprises a negative electrode fixed contact (22) which is bent and extended upwards by a negative electrode contact seat (2) and a first negative electrode swinging contact (42) which is bent and extended upwards by the right end of a negative electrode transition contact strip (4), and the first negative electrode swinging contact (42) corresponds to a third pushing arm (94);

The fourth switch-off structure (200) comprises a second negative electrode swing contact (41) which is bent and extended upwards at the left end of the negative electrode transition contact strip (4) and a zero line fixed contact (61) which is extended upwards at the end part of the zero line conducting strip (6), wherein the second negative electrode swing contact (41) corresponds to the fourth push arm (83);

The locking mechanism (7) comprises a transverse swinging frame (75) capable of moving up and down and swinging, a first stirring part extends from the right end of the first seat plate (81), a second stirring part (98) extends from the left side of the front end of the second sliding bar (92), a wedge surface corresponding to the first stirring part is arranged at the left end of the transverse swinging frame (75), and a wedge surface corresponding to the second stirring part (98) is arranged at the right end of the transverse swinging frame (75);

The locking mechanism (7) further comprises a locking portal frame (71), a group of vertical guide grooves (711) are formed in the inner side wall of the locking portal frame (71), swing pin shafts (751) are respectively extended from the front end face and the rear end face in the middle of the transverse swing frame (75), the swing pin shafts (751) are slidably arranged in the vertical guide grooves (711), first spring connecting portions (74) are further respectively arranged at two ends of the transverse swing frame (75), a group of second spring connecting portions (72) are correspondingly arranged on the locking portal frame (71), and extension springs (73) are connected between the first spring connecting portions (74) and the second spring connecting portions (72).

2. The secure two-insert push structure of claim 1, wherein: a left baffle plate (104) extends from the left side of the fixed frame (101), and a first baffle plate hole (1042) for the first on-off switch structure (300) to penetrate through and a fourth baffle plate hole (1041) for the fourth on-off switch structure (200) to penetrate through are respectively formed in the left baffle plate (104); the right baffle plate (105) extends on the right side of the fixed frame (101), and a second baffle plate hole (1052) for the second on-off switch structure (500) to penetrate out and a third baffle plate hole (1051) for the third on-off switch structure (400) to penetrate out are respectively formed in the right baffle plate (105).

3. The secure two-insert push structure of claim 1, wherein: the first pushing mechanism (8) further comprises a first reset spring (85) and a first spring seat plate (86) fixed on the bottom shell (100), one end of the first reset spring (85) is connected with the front end face of the first seat plate (81), and the other end of the first reset spring (85) is connected with the rear end face of the first spring seat plate (86);

The second pushing mechanism (9) further comprises a second reset spring (95) and a second spring seat plate (96) fixed on the bottom shell (100), one end of the second reset spring (95) is connected with the rear end face of the second seat plate (91), and the other end of the second reset spring (95) is connected with the front end face of the second spring seat plate (96).

4. The secure two-insert push structure of claim 1, wherein: the device also comprises a signal lamp (600) for displaying power on, wherein two electrode ends of the signal lamp (600) are respectively electrically connected with the positive electrode contact piece seat (1) and the negative electrode contact piece seat (2) through wires.

5. A socket comprising a secure two-prong push structure as claimed in any one of claims 1 to 4.