CN206135158U - A multi-country power converter - Google Patents

Abstract

The utility model discloses a multinational power converter, which comprises a shell formed by matching a cylindrical main body upper cover and a main body lower cover, wherein the upper end surface of the cylindrical main body upper cover is provided with multinational socket holes; the lower end surface of the lower cover of the main body is provided with a first socket group, a second socket group and a variable third socket group; the accommodating cavity is internally provided with a socket support, a first plug assembly, a second plug assembly and a third plug assembly, the socket support is positioned at the upper ends of the first plug assembly, the second plug assembly and the third plug assembly, the socket support is provided with a left slot and a right slot, a left socket elastic sheet assembly is arranged in the left slot, a right socket elastic sheet assembly is arranged in the right slot, and the left socket elastic sheet assembly and the right socket elastic sheet assembly are respectively matched with the multinational socket holes; an inner mounting support is arranged in the main body lower cover, a conducting strip assembly consisting of a first conducting strip and a second conducting strip is arranged on the inner mounting support, and a positive wire and a negative wire are connected between the inner mounting support and the combined socket panel.

Description

A multi-country power converter

technical field

The utility model relates to a power converter, in particular to a multinational power converter.

Background technique

Due to the different specifications of plugs and sockets in different countries, they cannot be used universally. If you need to insert the plug into a socket that does not match the specifications, you need to use a power converter. The power converter is a conversion tool. When in use, the power converter is inserted into the target socket, and then the target plug is inserted into the matching socket hole on the power converter to realize the conversion. The emergence of power converters has improved the convenience of people's going out, especially when traveling across the country, without worrying about the trouble caused by the mismatch between the plugs of the electronic devices they carry and the local power sockets.

In order to simplify the converter, the socket holes in the existing power converter are simplified, that is, the socket holes in different countries are shared with each other, and the positive and negative poles are used alternately, so the safety of electricity use is low.

Utility model content

In view of the above shortcomings, the purpose of this utility model is to provide a multi-country power converter. The socket holes of each country are relatively independent, and the positive and negative poles are not crossed, which greatly increases the safety factor.

The technical scheme that the utility model adopts for achieving the above object is:

A multi-country power converter, comprising a cylindrical main body upper cover and a main lower cover arranged in cooperation with each other, the cylindrical main body upper cover and the main body lower cover cooperate to form a housing with an accommodating cavity inside, characterized in that the The upper end surface of the upper cover of the cylindrical main body is provided with multi-national socket holes to form a combined socket panel; the lower end surface of the lower cover of the main body is provided with a first socket group, a second socket group and a variable third socket group; A socket bracket, a first plug assembly, a second plug assembly and a third plug assembly are arranged in the cavity, wherein the lower end of the first plug assembly moves up and down in the first socket group, and the lower end of the second plug assembly moves up and down in the In the second socket group, the lower end of the third plug assembly moves up and down and is arranged in the variable third socket group, the socket bracket is located on the upper ends of the first plug assembly, the second plug assembly and the third plug assembly, and the socket bracket There is a left slot and a right slot, the left slot is provided with a left socket shrapnel assembly, the right slot is provided with a right socket shrapnel assembly, and the left socket shrapnel assembly and the right socket shrapnel assembly are respectively connected to the multinational The socket holes are matched and arranged; the lower cover of the main body is provided with a built-in bracket, the built-in bracket is provided with a conductive sheet assembly composed of a first conductive sheet and a second conductive sheet, and the built-in bracket is connected to the combined socket panel There is a positive line and a negative line; the combined socket panel is provided with a first jack, a second jack, a third jack and a twelfth jack in a straight line, and the second jack and the third jack The holes are connected, the first jack is connected with the twelfth jack, the second jack is connected with the third jack, the left front end of the first jack is provided with a fourth jack, and the right front end is provided with a The fifth jack; the left front end of the second jack is provided with a sixth jack, and the right front end is provided with a seventh jack; the left side of the third jack is provided with an eighth jack, and the right side is provided with a ninth jack. jack; the rear end of the eighth jack is provided with a tenth jack, and the rear end of the ninth jack is provided with an eleventh jack; wherein, the second jack, the fourth jack and the fifth jack are combined Form the American socket hole, the combination of the sixth jack, the seventh jack and the twelfth jack forms the Australian socket hole, the combination of the second jack, the eighth jack and the ninth jack forms the Swiss socket hole, the The three jacks, the eighth jack and the ninth jack are combined to form an Italian socket hole, and the first jack, the tenth jack and the eleventh jack are combined to form a British socket hole.

As a further improvement of the present utility model, a protective door assembly is provided at the upper end of the socket bracket and at the lower end of the combined socket panel, and the protective door assembly includes a first protective door and a second protective door, wherein the first protective door and the The lower end surfaces of the second protective doors are all arc-shaped; the upper end surface of the first protective door is located below the first socket and has a middle through hole, and the left side of the upper end surface of the first protective door is located below the fourth socket. A front left inclined block, a rectangular through hole is opened on the upper end surface of the first protection door, a first inner inclined surface is provided on the side wall of the rectangular through hole, and a first inner inclined surface is located below the fifth socket. A front right inclined block, and the right side of the first protective door is provided with a first spring block, and a first spring is arranged on the first spring block; the front end of the second protective door is located in the first jack There is a front inclined surface at the bottom, and the upper end of the second protection door is respectively provided with a middle oval through hole located under the second and third jacks, a left triangular through hole located under the sixth jack, and a left triangular through hole located under the seventh jack. The right triangular through hole under the hole, the left oval through hole under the eighth jack, the right oval through hole under the ninth jack, the left square through hole under the tenth jack, and the tenth jack A right square through hole below the socket, wherein the side wall of the left triangular through hole and the side wall of the right triangular through hole respectively have a second inner inclined surface, and the second inner inclined surface has a middle The inclined block, the side wall of the left oval through hole and the side wall of the right oval through hole respectively have a third inner inclined surface, and the third inner inclined surface has a rear inclined block; and the second The rear end of the protection door is provided with a second spring block, and a second spring is arranged on the second spring block; the left socket shrapnel assembly includes a first shrapnel group located under the left side of the first protection door, located on the left The second shrapnel group below the triangular through hole, the third shrapnel group below the left oval through hole, and the fourth shrapnel group below the left square through hole. Five shrapnel groups, the sixth shrapnel group located below the right triangular through hole, the seventh shrapnel group located below the right oval through hole, and the eighth shrapnel group located below the right square through hole.

As a further improvement of the utility model, the first conductive sheet has a first conductive copper sheet and a second conductive copper sheet arranged diagonally, and the second conductive sheet has a third conductive copper sheet and a second conductive copper sheet arranged diagonally. The fourth conductive copper sheet; the lower cover of the main body is provided with a first guide hole group, a second guide hole group and a third guide hole group, and a British-standard plastic pin socket is provided between the second socket group. A British standard plastic foot is inserted into the socket of the British standard plastic foot, and a first sliding groove, a second sliding groove and a third sliding groove are provided on the side of the housing.

As a further improvement of the present utility model, the first plug assembly includes a first plug base, a first plug base casing, a first plug slidably arranged on both sides of the first plug base casing and inserted into the first guide hole The guide column, the two first pins inserted into the first plug base, and the first button arranged on the outer side of the first plug base, wherein, the lower end of the outer side of the first plug base is provided with a limit holes, the upper ends of the two first pins are respectively provided with a first copper sheet, one of the first copper sheets is located on the side of the first conductive copper sheet, and the other first copper sheet is located on the side of the third conductive copper sheet, the first The end of the button is clamped on the outside of the first sliding hole, and the first button is connected to the first plug base through the first button spring, and the first button drives the two first pins and the outer cover of the first plug base to move up and down in the first socket group.

As a further improvement of the present utility model, the second plug assembly includes a second plug base, two second pins arranged at the lower end of the second plug base, slidingly arranged on the second plug base and positioned on the two second pins. The two second guide columns between the two pins and the second button arranged on the outer side of the second plug base, wherein the lower ends of the two second guide columns are inserted into the second guide hole group, and the two second guide columns are inserted into the second guide hole group. The upper ends of the second pins are respectively provided with a second copper sheet, wherein one second copper sheet is located at the side of the fourth conductive copper sheet, and the other second copper sheet is located at the side of the second conductive copper sheet, and the end of the second button is clamped It is outside the second sliding hole, and the second button is connected to the second plug base through the second button spring, and the second button drives the two second pins to move up and down in the second socket group.

As a further improvement of the present utility model, the third plug assembly includes a third plug base, two third pins arranged at the lower end of the third plug base, slidingly inserted into the third plug base and located on two pins A third guide column between the third pins and a third button arranged on the outer side of the third plug base, wherein the lower end of the third guide column is inserted into the third guide hole group, the two third pins The upper ends are respectively provided with a third copper sheet, wherein one third copper sheet is located on the side of the second conductive copper sheet, and the other third copper sheet is located on the side of the third conductive copper sheet, and the end of the third button is clamped on the third The outside of the sliding hole, and the third button is connected to the third plug base through the third button spring, and the third button drives the two third pins to move up and down in the variable third socket group.

As a further improvement of the utility model, a movable piece installation groove is provided in the lower cover of the main body, a movable piece assembly is arranged in the movable piece installation groove, a limit plate is arranged on the movable piece assembly, and the movable piece assembly includes the first A movable piece, a second movable piece and a third movable piece, wherein the first movable piece and the second movable piece are on the same straight line, and the third movable piece is located on the side where the first movable piece and the second movable piece are connected On the edge; one end of the first movable piece is provided with a first positive end surface and a first inclined end surface, and the other end is provided with a first inclined surface, and the first inclined surface is located on the side of the limit hole of the first plug base outer casing One end of the second movable piece is provided with a second positive end surface matched with the first positive end surface and a second inclined end surface, and the other end is provided with a second inclined surface, and the second inclined surface is located at the lower end of one of the second pins ; One end of the third movable piece is provided with a third inclined end face matched with the first inclined end face and a fourth inclined end face matched with the second inclined end face, and the other end is provided with a third inclined face, the third inclined end face The surface is located at the lower end of one of the third prongs.

As a further improvement of the utility model, a USB charging circuit board is also arranged in the accommodating cavity, and two pieces of USB charging conductive copper sheets are arranged on the USB charging circuit board, and the lower end of the USB charging circuit board is inserted into the socket bracket , the upper end of the USB charging circuit board is provided with a lamp cap; the lower cover of the main body is also provided with a fuse cap, a spare fuse cap and pin fittings, and the fuse cap is arranged on the lower cover of the main body through a fuse holder.

The beneficial effects of the utility model are:

1. The socket holes in each country are relatively independent, and the positive and negative poles are not crossed, which greatly increases the safety factor;

2. Add arc-shaped first protective door and second protective door to prevent conduction when there is only one socket inserted, and improve safety;

3. When in use, only one type of pin protrudes from the lower surface of the lower cover of the main body, so as to achieve the purpose of using only one type of pin at the same time and improve the safety of use;

4. The combined socket panel 11 with multi-country socket holes and multi-country standard pins are applicable to the conversion between multi-country plugs and socket holes.

The above is an overview of the technical solution of the utility model, and the utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is the explosion diagram of the utility model;

Fig. 3 is a structural schematic diagram of the upper cover of the cylindrical main body of the utility model;

Fig. 4 is a schematic structural view of the bottom of the main body lower cover of the present invention;

Fig. 5 is a partial structural representation of the utility model;

Fig. 6 is a structural schematic view of the inner side of the lower cover of the main body of the utility model;

Fig. 7 is a schematic structural diagram of the first plug assembly of the present invention;

Fig. 8 is a schematic structural diagram of the second plug assembly of the present invention;

Fig. 9 is a schematic structural diagram of a third plug assembly of the present invention;

Fig. 10 is a structural schematic diagram of the left socket shrapnel assembly of the utility model;

Fig. 11 is a schematic structural view of the right socket shrapnel assembly of the present invention;

Fig. 12 is a structural schematic diagram of the first protection door of the present invention;

Fig. 13 is a schematic structural view of the second protection door of the present invention;

Fig. 14 is a structural schematic diagram of the combined state of the movable sheet assembly of the present invention;

Fig. 15 is a schematic structural diagram of the separation state of the movable piece assembly of the present invention.

detailed description

In order to further explain the technical means and effects of the utility model to achieve the predetermined purpose, the specific implementation of the utility model will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

Please refer to Fig. 1 to Fig. 15, the embodiment of the utility model provides a multi-country power converter, which includes a cylindrical main body upper cover 1 and a main body lower cover 2 arranged in cooperation with each other, the cylindrical main body upper cover 1 and the main body lower cover 2 Cooperate to form a shell 3 with an accommodating cavity inside. The upper end surface of the cylindrical main body upper cover 1 is provided with multi-country socket holes to form a combined socket panel 11; the lower end surface of the main body lower cover 2 is provided with a first socket group. 21. The second socket group 22 and the variable third socket group 23; the socket bracket 4, the first plug assembly 5, the second plug assembly 6 and the third plug assembly 7 are arranged in the accommodating cavity, wherein the The lower end of the first plug assembly 5 moves up and down in the first socket group 21, the lower end of the second plug assembly 6 moves up and down in the second socket group 22, and the lower end of the third plug assembly 7 moves up and down in the variable first socket group. In the three-socket group 23, the socket bracket 4 is located at the upper end of the first plug assembly 5, the second plug assembly 6 and the third plug assembly 7, and the socket bracket 4 is provided with a left slot 41 and a right slot 42, A left socket shrapnel assembly 8 is arranged in the left slot 41, a right socket shrapnel assembly 9 is arranged in the right slot 42, and the left socket shrapnel assembly 8 and the right socket shrapnel assembly 9 are matched with the multi-country socket holes respectively; The lower cover 2 of the main body is provided with a built-in bracket 10, on which a conductive sheet assembly 20 composed of a first conductive sheet 201 and a second conductive sheet 202 is arranged, and between the built-in bracket 10 and the combined socket panel 11 A positive line and a negative line are connected between them.

As shown in FIG. 3 , the combined socket panel 11 is provided with a first jack 111 , a second jack 112 , a third jack 113 and a twelfth jack 122 arranged in a straight line. The first jack 111 It communicates with the twelfth jack 122, and the second jack 112 communicates with the third jack 113. The left front end of the first jack 111 is provided with a fourth jack 114, and the right front end is provided with a fifth jack. hole 115; the left front end of the second jack 112 is provided with a sixth jack 116, and the right front end is provided with a seventh jack 117; the left side of the third jack 113 is provided with an eighth jack 118, and the right side is provided with an eighth jack 118 There is a ninth jack 119; the rear end of the eighth jack 118 is provided with a tenth jack 120, and the rear end of the ninth jack 119 is provided with an eleventh jack 121; wherein, the second jack 112, the Four jacks 114 are combined with the fifth jack 115 to form an American socket hole, the sixth jack 116, the seventh jack 117 and the twelfth jack 122 are combined to form an Australian socket hole, the second jack 112, the eighth jack The jack 118 and the ninth jack 119 are combined to form a Swiss socket hole, the third jack 113, the eighth jack 118 and the ninth jack 119 are combined to form an Italian socket hole, the first jack 111, the tenth jack 120 is combined with the eleventh socket 121 to form a British socket hole.

As shown in Fig. 12 and Fig. 13, a protective door assembly is provided at the upper end of the socket bracket 4 and at the lower end of the combined socket panel 11, the protective door assembly includes a first protective door 30 and a second protective door 40, wherein the The lower end surfaces of the first protective door 30 and the second protective door 40 are arc-shaped; the upper end surface of the first protective door 30 is located below the first insertion hole 111 and has a middle through hole 301, and the upper end surface of the first protective door 30 There is a front left inclined block 302 on the left side and below the fourth insertion hole 114, a rectangular through hole 303 is opened on the upper end surface of the first protective door 30, and a first inner inclined surface is formed on the side wall of the rectangular through hole 303 304, there is a front right inclined block 305 on the first inner inclined surface 304 and below the fifth insertion hole 115, and a first spring block 306 is arranged on the right side of the first protective door 30, and the first spring A first spring 307 is arranged on the block 306; the front end of the second protective door 40 is provided with a front inclined surface 401 below the first socket 111, and the upper end of the second protective door 40 is respectively provided with a spring located at the second socket 112. The middle oval through hole 402 below the third jack 113, the left triangular through hole 403 below the sixth jack 116, the right triangular through hole 404 below the seventh jack 117, and the eighth jack 118 below The left oval through hole 405, the right oval through hole 406 below the ninth jack 119, the left square through hole 407 under the tenth jack 120, and the right square through hole under the eleventh jack 121 hole 408, wherein, the side wall of the left triangular through hole 403 and the side wall of the right triangular through hole 404 respectively have a second inner inclined surface 409, and the second inner inclined surface 409 has a middle inclined block 410 A side wall of the left elliptical through hole 405 and a side wall of the right elliptical through hole 406 respectively have a third inner inclined surface 411, and the third inner inclined surface 411 has a rear inclined block 412; and A second spring block 413 is disposed at the rear end of the second protection door 40 , and a second spring 414 is disposed on the second spring block 413 .

In this embodiment, by setting the first protective door 30 and the second protective door 40 whose lower end faces are arc-shaped, when plugs or other items are only inserted into one jack, that is, only for the first protective door 30 or the second protective door 40 When one side of the first protective door 30 or the second protective door 40 exerts a downward force, the other side of the first protective door 30 or the second protective door 40 will be tilted upward, so that the corresponding inclined block is inserted into the socket, and the entire first protective door 30 and the second protective door 40 The second protection door 40 cannot move downwards and cannot be conducted, which improves safety.

As shown in Fig. 10 and Fig. 11, the left socket shrapnel assembly 8 includes a first shrapnel group 81 located below the left side of the first protective door 30, a second shrapnel group 82 located below the left triangular through hole 403, and a second shrapnel group 82 located below the left triangular through hole 403. The third elastic sheet group 83 below the oval through hole 405, and the fourth elastic sheet group 84 below the left square through hole 407, the right socket elastic sheet assembly 9 includes the fifth elastic sheet group 91 located below the rectangular through hole 303, located at The sixth elastic sheet group 92 below the right triangular through hole 404 , the seventh elastic sheet group 93 below the right oval through hole 406 , and the eighth elastic sheet group 94 below the right square through hole 408 .

2 and 6, the first conductive sheet 201 has a first conductive copper sheet 2011 and a second conductive copper sheet 2012 arranged diagonally, and the second conductive sheet 202 has a diagonally arranged conductive copper sheet 2012. The third conductive copper sheet 2021 and the fourth conductive copper sheet 2022; the lower cover 2 of the main body is provided with a first guide hole group 24, a second guide hole group 25 and a third guide hole group 26, and the first socket A British standard plastic foot socket 27 is arranged between the groups 21, and a British standard plastic foot 50 is inserted in the British standard plastic foot socket 27, and a first sliding groove 32 and a second sliding groove are provided on the side of the shell 3. 33 and the third sliding groove 34.

As shown in FIG. 7 , the first plug assembly 5 includes a first plug base 51 , a first plug base cover 57 , which are slidably arranged on both sides of the first plug base cover 57 and inserted into the first guide hole group 24 The first guide column 52, the two first pins 53 inserted into the first plug base 51, and the first button 54 arranged on the outer side of the first plug base 51, the first plug base outer cover 57 side A limit hole 511 is provided at the lower end of the side, and a first copper sheet 55 is respectively provided at the upper ends of the two first pins 53, one of the first copper sheets is located on the side of the first conductive copper sheet 2011, and the other first copper sheet is located at the side of the first conductive copper sheet 2011. On the side of the three conductive copper sheets 2021, the end of the first button 54 is clamped on the outside of the first sliding hole 32, and the first button 54 is connected to the first plug base 51 through the first button spring 56, and the first button 54 is connected to the first plug base 51 through the first button spring 56. The button 54 drives the two first pins 53 and the first plug base cover 57 to move up and down in the first socket group 21 . In this embodiment, the two first pins 53 are European standard pins.

As shown in FIG. 8 , the second plug assembly 6 includes a second plug base 61 , two second pins 62 disposed at the lower end of the second plug base 61 , slidably disposed on the second plug base 61 and positioned on the second plug base 61 . Two second guide columns 63 between the two second pins 62, and the second button 64 arranged on the outer side of the second plug base 61, wherein, the lower ends of the two second guide columns 63 are inserted into the second In the guide hole group 25, the upper ends of the two second pins 62 are respectively provided with a second copper sheet 65, one of the second copper sheets is located on the side of the fourth conductive copper sheet 2022, and the other second copper sheet is located on the second conductive copper sheet 2022. The side of the sheet 2012, the end of the second button 64 is clamped on the outside of the second sliding hole 33, and the second button 64 is connected to the second plug base 61 through the second button spring 66, driven by the second button 64 The two second pins 62 move up and down in the second socket set 22 . In this embodiment, the two second pins 62 are British standard pins.

As shown in FIG. 9 , the third plug assembly 7 includes a third plug base 71 , two third pins 72 arranged at the lower end of the third plug base 71 , slidably inserted into the third plug base 71 and A third guide column 73 located between the two third pins 72, and a third button 74 arranged on the outer side of the third plug base 71, wherein the lower end of the third guide column 73 is inserted into the third guide hole group 26, the upper ends of the two third pins 72 are respectively provided with a third copper sheet 75, one of the third copper sheets is located on the side of the second conductive copper sheet 2012, and the other third copper sheet is located on the side of the third conductive copper sheet 2021 side, the end of the third key 74 is clamped outside the third sliding hole, and the third key 74 is connected to the third plug base 71 through the third key spring 76, and the third key 74 drives two third The pin 72 moves up and down in the variable third socket group 23 . In this embodiment, the two third pins 72 are American or Australian standard pins.

As shown in Fig. 2, Fig. 14 and Fig. 15, a movable piece installation groove is provided in the lower cover 2 of the main body, a movable piece assembly 60 is arranged in the movable piece installation groove, and a limit plate is arranged on the movable piece assembly 60 70, the movable piece assembly 60 includes a first movable piece 601, a second movable piece 602 and a third movable piece 603, the limit plate 70 plays a role in preventing the movable piece assembly 60 from tilting, and ensures that the movable piece assembly 60 is on the same horizontal plane Move up, wherein, the first movable piece 601 and the second movable piece 602 are on the same straight line, and the third movable piece 603 is located on the side of the connection between the first movable piece 601 and the second movable piece 602; One end of the movable piece 601 is provided with a first positive end surface 6011 and a first inclined end surface 6012, and the other end is provided with a first inclined surface 6013, and the first inclined surface 6013 is located at the limit hole 511 side of the first plug base outer casing 57 Side; one end of the second movable piece 602 is provided with a second positive end surface 6021 matching the first positive end surface 6011 and a second inclined end surface 6022, and the other end is provided with a second inclined surface 6023, and the second inclined surface 6023 is located at The lower end of one of the second pins 62; one end of the third movable piece 603 is provided with a third inclined end surface 6031 matching the first inclined end surface 6012 and a fourth inclined end surface 6032 matching the second inclined end surface 6022, The other end is provided with a third inclined surface 6033 , and the third inclined surface 6033 is located at the lower end of one of the third pins 72 .

When the first button 54 is pushed downwards to drive the two first pins 53 and the first plug base cover 57 to move downwards and pass through the first socket group 21, the lower end of the first plug base cover 57 is on the first inclined surface. Under the guidance of 6013, the first movable piece 601 is pushed toward the second movable piece 602, so that the second inclined surface 6023 at the end of the second movable piece 602 bears against the lower end of the second pin 62 of the second plug assembly 6 to prevent The second plug assembly 6 moves downward, and at the same time, the third inclined surface 6033 at the end of the third movable piece 603 bears against the lower end of the third button 74 of the third plug assembly 7 to prevent the third plug assembly 7 from moving downward. The purpose of using only one specification of pins at the same time is realized, and the safety of use is improved.

When the second button 64 is pushed downwards to drive the two second pins 62 to move down and pass through the second socket group 22, the lower end of the second button 64 is guided by the second inclined surface 6023 to move the second movable piece 602 is pushed toward the first movable piece 601, so that the first inclined surface 6013 at the end of the first movable piece 601 is snapped into the limiting hole 511 of the first plug base 51, preventing the first plug assembly 5 from moving downward. At the same time, the third inclined surface 6033 at the end of the third movable piece 603 bears against the lower end of the third button 74 of the third plug assembly 7 to prevent the third plug assembly 7 from moving downward. The purpose of using only one specification of pins at the same time is realized, and the safety of use is improved.

When the third button 74 is pushed down to drive the two third prongs 72 to move downwards and pass through the variable third socket group 23, the lower ends of the third prongs 72 are guided by the third inclined surface 6033 to move the third prongs 72 downwards. The three movable pieces 603 are pushed towards the first movable piece 601 and the second movable piece 602, so that the first movable piece 601 and the second movable piece 602 are moved apart from each other, and the first inclined surface 6013 at the end of the first movable piece 601 is locked. It is set in the limiting hole 511 of the first plug base cover 57 to prevent the first plug assembly 5 from moving downward. The lower end of the second pin 62 prevents the second plug assembly 6 from moving downward, so as to realize the purpose of only using pins of one specification at the same time and improve the safety of use.

As shown in Figures 2 and 5, a USB charging circuit board 80 is also arranged in the accommodating cavity, and two USB charging conductive copper sheets are arranged on the USB charging circuit board 80, and the lower end of the USB charging circuit board is inserted into the On the socket bracket 4, a lamp cap 801 is arranged on the upper end of the USB charging circuit board 80; a fuse cap 90, a spare fuse cap 100 and pin fittings 110 are also arranged in the lower cover of the main body 2, and the fuse cap 90 passes through a The fuse holder 120 is disposed on the lower cover 2 of the main body.

The working principle of the present utility model is described below by taking the use of the American socket as an example.

Push down the third button 74, drive two third prongs 72 to move down and pass through the variable third socket group 23, then the two third copper sheets 75 on the third plug assembly 7, one of the third The copper sheet is in contact with the second conductive copper sheet 2012, and another third copper sheet is in contact with the third conductive copper sheet 2021, and passes through the positive and negative wires on the built-in bracket 10 to connect with the socket conductor on the combined socket panel 11. Pass. When the Australian socket needs to be used, it is only necessary to swing the two third prongs 72 in the variable third socket group 23 at a certain angle.

The utility model has the following advantages:

1. The socket holes in each country are relatively independent, and the positive and negative poles are not crossed, which greatly increases the safety factor;

2. Add arc-shaped first protective door and second protective door to prevent conduction when there is only one socket inserted, and improve safety;

3. When in use, only one type of pin protrudes from the lower surface of the lower cover of the main body, so as to achieve the purpose of using only one type of pin at the same time and improve the safety of use;

4. The combined socket panel 11 with multi-country socket holes and multi-country standard pins are applicable to the conversion between multi-country plugs and socket holes.

The above are only preferred embodiments of the present utility model, and are not intended to limit the technical scope of the present utility model, so adopting the same or similar technical features as the above-mentioned embodiments of the present utility model is under the protection of the present utility model. within range.

Claims (8)

1. A multi-country power converter, comprising a cylindrical main body upper cover and a main body lower cover arranged in cooperation with each other, the cylindrical main body upper cover and the main body lower cover cooperate to form a shell with an accommodating cavity inside, characterized in that, The upper end surface of the upper cover of the cylindrical main body is provided with multi-national socket holes to form a combined socket panel; the lower end surface of the lower cover of the main body is provided with a first socket group, a second socket group and a variable third socket group; A socket bracket, a first plug assembly, a second plug assembly and a third plug assembly are arranged in the accommodating cavity, wherein the lower end of the first plug assembly moves up and down in the first socket group, and the lower end of the second plug assembly moves up and down Set in the second socket group, the lower end of the third plug assembly moves up and down in the variable third socket group, the socket bracket is located on the upper ends of the first plug assembly, the second plug assembly and the third plug assembly, and the A left socket and a right socket are provided on the socket bracket, a left socket shrapnel assembly is arranged in the left slot, a right socket shrapnel assembly is arranged in the right slot, and the left socket shrapnel assembly and the right socket shrapnel assembly are respectively It is matched with the multi-country socket hole; the lower cover of the main body is provided with a built-in bracket, the built-in bracket is provided with a conductive sheet assembly composed of a first conductive sheet and a second conductive sheet, and the built-in bracket and the combined socket panel A positive line and a negative line are connected between them; a first jack, a second jack, a third jack and a twelfth jack are arranged in a straight line on the panel of the combined socket, and the second jack and the second jack are arranged in a straight line. The three jacks are connected, the first jack is connected with the twelfth jack, the left front end of the first jack is provided with a fourth jack, and the right front end is provided with a fifth jack; the second jack is left The front end of the side is provided with a sixth jack, and the front end of the right side is provided with a seventh jack; the left side of the third jack is provided with an eighth jack, and the right side is provided with a ninth jack; the rear end of the eighth jack is provided with There is a tenth jack, the rear end of the ninth jack is provided with an eleventh jack; wherein, the second jack, the fourth jack and the fifth jack are combined to form a US socket hole, the sixth jack, The seventh jack and the twelfth jack combine to form an Australian socket hole, the second jack, the eighth jack and the ninth jack combine to form a Swiss socket hole, the third jack, the eighth jack and the ninth jack The combination of jacks forms an Italian socket hole, and the combination of the first, tenth and eleventh jacks forms a British socket hole. 2. The multi-country power converter according to claim 1, wherein a protection door assembly is provided at the upper end of the socket bracket and at the lower end of the combined socket panel, and the protection door assembly includes a first protection door and a second protection door , wherein, the lower end surfaces of the first protective door and the second protective door are both arc-shaped; the upper end surface of the first protective door is located below the first socket and has a middle through hole, and the upper end surface of the first protective door is left There is a front left inclined block on the side and below the fourth jack, and a rectangular through hole is opened on the upper end surface of the first protective door. The side wall of the rectangular through hole has a first inner inclined surface, and the first inner inclined There is a front right inclined block on the surface and below the fifth socket, and a first spring block is arranged on the right side of the first protection door, and a first spring is arranged on the first spring block; the first The front end of the second protective door is located below the first socket and has a front inclined surface. The upper end of the second protective door is respectively provided with a middle oval through hole located below the second socket and the third socket, and is located below the sixth socket. The left triangular via, the right triangular via under the seventh jack, the left oval via under the eighth jack, the right oval via under the ninth jack, the right oval via under the tenth jack The left square through hole and the right square through hole located below the eleventh insertion hole, wherein the side wall of the left triangular through hole and the side wall of the right triangular through hole respectively have a second inner inclined surface, The second inner inclined surface has a middle inclined block, and the side wall of the left oval through hole and the side wall of the right oval through hole respectively have a third inner inclined surface, and the third inner inclined surface There is a rear inclined block; and the rear end of the second protective door is provided with a second spring block, and a second spring is arranged on the second spring block; the left socket shrapnel assembly includes a The first shrapnel group below the side, the second shrapnel group below the left triangular through hole, the third shrapnel group below the left oval through hole, and the fourth shrapnel group below the left square through hole, the right socket The shrapnel assembly includes the fifth shrapnel group located below the rectangular through hole, the sixth shrapnel group located below the right triangular through hole, the seventh shrapnel group located below the right oval through hole, and the eighth shrapnel located below the right square through hole Group. 3. The multi-country power converter according to claim 1, wherein the first conductive sheet has a first conductive copper sheet and a second conductive copper sheet arranged diagonally, and the second conductive sheet has a The third conductive copper sheet and the fourth conductive copper sheet arranged diagonally; the lower cover of the main body is provided with a first guide hole group, a second guide hole group and a third guide hole group, between the second socket group A British-standard plastic pin socket is provided, and a British-standard plastic pin is inserted into the British-standard plastic pin socket. A first sliding groove, a second sliding groove and a third sliding groove are provided on the side of the shell. 4. The multi-country power converter according to claim 3, characterized in that, the first plug assembly comprises a first plug base, a first plug base cover, slidingly arranged on both sides of the first plug base cover and The first guide column inserted into the first guide hole group, the two first prongs inserted into the first plug base, and the first button arranged on the outer side of the first plug base, wherein the first plug A limit hole is provided at the lower side of the outer cover of the base, and a first copper sheet is respectively provided at the upper ends of the two first pins, wherein one first copper sheet is located on the side of the first conductive copper sheet, and the other first copper sheet is located on the second conductive copper sheet. On the side of the three conductive copper sheets, the end of the first button is clamped outside the first sliding hole, and the first button is connected to the first plug base through the first button spring, and the two first buttons are driven by the first button. The pins and the first plug base cover move up and down in the first socket group. 5. The multi-country power converter according to claim 4, characterized in that, the second plug assembly comprises a second plug base, two second pins arranged on the lower end of the second plug base, and two second prongs slidably arranged on the second plug base. Two second guide columns on the plug base and located between the two second pins, and a second button arranged on the outer side of the second plug base, wherein the lower ends of the two second guide columns are inserted into the In the second guide hole group, the upper ends of the two second pins are respectively provided with a second copper sheet, one of the second copper sheets is located on the side of the fourth conductive copper sheet, and the other second copper sheet is located on the side of the second conductive copper sheet side, the end of the second button is clamped outside the second sliding hole, and the second button is connected to the second plug base through the second button spring, and the second button drives the two second pins to move up and down on the second plug base. In the two-socket group. 6. The multi-country power converter according to claim 5, wherein the third plug assembly comprises a third plug base, two third pins arranged at the lower end of the third plug base, slidingly inserted into A third guide column located between the two third pins in the third plug base, and a third button arranged on the outer side of the third plug base, wherein the lower end of the third guide column is inserted into the third guide In the hole group, the upper ends of the two third pins are respectively provided with a third copper sheet, one of the third copper sheets is located on the side of the second conductive copper sheet, and the other third copper sheet is located on the side of the third conductive copper sheet. The end of the third button is clamped on the outside of the third sliding hole, and the third button is connected to the third plug base through the third button spring, and the third button drives the two third pins to move up and down in the variable third button. In a three-socket group. 7. The multi-country power converter according to claim 6, wherein the lower cover of the main body is provided with a movable piece installation groove, a movable piece assembly is arranged in the movable piece installation groove, and a movable piece assembly is provided with a Limiting plate, the movable piece assembly includes a first movable piece, a second movable piece and a third movable piece, wherein the first movable piece and the second movable piece are on the same straight line, and the third movable piece is located on the first movable piece One end of the first movable piece is provided with a first positive end surface and a first inclined end surface, and the other end is provided with a first inclined surface, and the first inclined surface is located at the first The limit hole side of the plug base outer cover; one end of the second movable piece is provided with a second positive end face matched with the first positive end face, and a second inclined end face, and the other end is provided with a second inclined face, the second The inclined surface is located at the lower end of one of the second pins; one end of the third movable piece is provided with a third inclined end surface matching the first inclined end surface and a fourth inclined end surface matching the second inclined end surface, and the other end is provided with There is a third inclined surface, and the third inclined surface is located at the lower end of one of the third pins. 8. The multi-country power converter according to claim 1, characterized in that, a USB charging circuit board is also arranged in the accommodating cavity, and two pieces of USB charging conductive copper sheets are arranged on the USB charging circuit board, and the USB charging circuit board The lower end of the charging circuit board is inserted on the socket bracket, and a lamp cap is arranged on the upper end of the USB charging circuit board; a fuse cap, a spare fuse cap and pin fittings are arranged in the lower cover of the main body, and the fuse cap passes through a fuse The tube holder is arranged on the lower cover of the main body.