Converter with grounding plugs of multiple specifications

Abstract

The converter comprises a shell and plugs, each of a first plug, a second plug and a third plug is provided with three conductive needles, two conductive needles are left polarity conductive needles and right polarity conductive needles, and the third conductive needle serves as a ground wire conductive needle; the three plugs are respectively provided with a sliding support to fix the positions of the conductive needles. The sliding bracket of the first plug is provided with a polar arm connected with the left and right polar conductive needles, and is provided with a ground wire arm connected with the ground wire conductive needle; sliding supports of the second plug and the third plug are Y-shaped, left and right arms of the sliding supports are respectively provided with left and right polarity conductive needles, and foot arms of the sliding supports are provided with ground wire conductive needles; the ground wire arm of the sliding support of the first plug is located between the left arm and the right arm of the sliding support of the second plug, the foot arm of the sliding support of the second plug is located between the left arm and the right arm of the sliding support of the third plug, and the foot arm of the sliding support of the third plug is located in the central groove of the polar arm of the first plug.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power plug converter, in particular to a converter with multi-specification grounding plug. BACKGROUND

[0002] A power plug is disclosed in Chinese patent CN1322638C, which is designed with three movable limiting blades. When any one of the four plugs is pushed to an effective power taking position, the limiting blades will be pressed to the pull-down path of the pushing button connecting rod of the other three plugs, thereby fixing the other three plugs in the invalid position. This design realizes the automatic locking function of the remaining plugs when one plug is in use with a simple mechanism, greatly improving the safety of use. However, the plug described in this design does not have a grounding design, which cannot meet the grounding function required by computers in operation, and there is a certain security risk.

[0003] A multi-way sliding plug is disclosed in patent CN102150332B / WO2009152630, which mainly arranges three grounding plugs. Each plug has three conductive pins connected by a C-shaped sliding bracket, two of which are polar conductive pins and the other is used as a grounding function. The sliding brackets of the three plugs are designed in C shape, one polar conductive pin is located in the center of the C shape, and the ground wire conductive pin is at the end point of the C shape. The arrangement method of the plug composed of the three C-shaped sliding brackets adopts the arrangement mode that any two C shapes are opened to each other and are engaged with each other. This design is also an effective solution for multi-specification and grounding plugs, but the overall layout requires a larger area and cannot effectively reduce the volume of the product.

[0004] Therefore, the present application provides the following technical solutions. SUMMARY

[0005] The present application aims to overcome the shortcomings of the prior art and provide a converter with multi-specification grounding plug.

[0006] To solve the above technical problems, the application adopts the following technical scheme: the converter with multi-specification grounding plug comprises a shell and a plurality of plugs with different specifications and grounding functions, wherein the first plug, the second plug and the third plug each have three conductive pins, two of which are left and right polarity conductive pins arranged on the left and right sides of the plug, and the third conductive pin is used as a ground wire conductive pin; each of the three plugs is provided with a sliding bracket to fix the position of the conductive pin, each sliding bracket is connected with an actuating arm, the actuating arm penetrates through the side wall of the shell and is connected with a push button, the push button drives the sliding bracket to slide up and down in the shell, and the conductive pin penetrates out of the shell to be located in an effective position, thereby forming a conductive plug that can be used; the sliding bracket of the first plug is provided with a polarity arm connected with the left and right polarity conductive pins, and the sliding bracket of the first plug is provided with a ground wire arm connected with the ground wire conductive pin; the sliding brackets of the second and third plugs are Y-shaped, referred to as Y-shaped brackets, the left and right arms of the Y-shaped bracket are respectively arranged with the left and right polarity conductive pins, and the foot arm of the Y-shaped bracket is arranged with the ground wire conductive pin; the ground wire arm of the sliding bracket of the first plug is located between the left and right arms of the sliding bracket of the second plug, the foot arm of the sliding bracket of the second plug is located between the left and right arms of the sliding bracket of the third plug, and the foot arm of the sliding bracket of the third plug is located in the central slot of the polarity arm of the first plug.

[0007] Further, in the above technical solution, the two sides of the ground wire arm of the first plug are provided with a first and a second receiving position, the central part of the polarity arm is provided with a central slot, and the two sides of the central slot are provided with a third and a fourth receiving position. The left and right arms of the Y-shaped support of the second plug are respectively provided with a left and a right receiving position, and the fifth and sixth receiving positions of the Y-shaped support of the third plug are located on the left and right sides of the foot arm. When the sliding support is in the invalid position, the corresponding conductive pin is accommodated in the shell. When the sliding support is in the effective position, the corresponding conductive pin extends out of the shell and forms a usable conductive plug. A control support is arranged in the shell, the control support is located above the three groups of sliding supports and extends downward to form four positioning columns, namely a first left, a first right, a second left and a second right positioning column. The lower ends of the four positioning columns form a first left, a first right, a second left and a second right top position. When the sliding support of the first plug slides downward to the effective position, the first and second receiving positions of the ground wire arm of the first plug are pressed by the first left and first right top positions. At the same time, the third and fourth receiving positions of the polarity arm are pressed by the second left and second right top positions. When the Y-shaped support of the second plug slides to the effective position, the left and right receiving positions of the Y-shaped support of the second plug are pressed by the first left and first right top positions. When the Y-shaped support of the third plug slides to the effective position, the fifth and sixth receiving positions of the Y-shaped support of the third plug are pressed by the second left and second right top positions. The control support is provided with a control knob, and the control knob is partially exposed outside the shell. When the sliding support of the plug is fixed in the effective position by the top positions of the corresponding positioning columns, pressing the control knob can make the receiving positions of the sliding support and the top positions of the positioning columns out of contact.

[0008] Further, in the above technical solution, the control knob of the control support is provided with a reset spring, the shape of the reset spring is R-shaped, and the reset spring is referred to as an R-shaped spring. The control knob is provided with a spring arm accommodating slot in the shell, and the vertical foot of the R-shaped spring is inserted into the spring arm accommodating slot. A blocking arm extending downward is arranged above the shell, and the inclined foot of the R-shaped spring abuts against the blocking arm to form a counter thrust to restore the position of the control knob.

[0009] Further, in the above technical solution, the sliding support of the plug is provided with a switching contact connected with the conductive pin, and a conductive connecting piece assembly is arranged in the shell. The conductive connecting piece assembly is used to transmit power to the socket module or the power module on the product. The power module is connected with at least one USB charging port or at least one wireless charging module. When the plug slides to the effective position, the switching contact is in contact with the conductive connecting piece assembly.

[0010] Further, in the above technical solution, at least one fuse box guide post and one fuse box are arranged in the shell, the fuse box is partially exposed outside the shell, and has at least one guide hole corresponding in diameter to the fuse box guide post, can move up and down along the direction of the guide post, and can be slid from inside the shell to outside the shell to replace the fuse.

[0011] Further, in the above technical solution, the side of the fuse box is provided with a working accommodation slot and a standby accommodation slot, the working accommodation slot, the standby accommodation slot, and the gap between the working accommodation slot and the standby accommodation slot are all provided with a clamping force required when the fuse is placed in the accommodation slot; the working accommodation slot is used for placing a working fuse, and the standby accommodation slot is used for placing a standby fuse; a left conductive clamping piece and a right conductive clamping piece are arranged beside the working accommodation slot to clamp the conductors at both ends of the working fuse, wherein the left conductive clamping piece is connected to one socket spring piece of the socket module, and the right conductive clamping piece is connected to the conductive connecting piece assembly.

[0012] Further, in the above technical solution, the first plug is a British plug, the second plug is an American plug, and the third plug is a Chinese plug or an Australian plug.

[0013] Further, in the above technical solution, the power module is further connected to a wireless charging module, the wireless charging module is connected to a group of magnetic induction coils, the magnetic induction coils serve as an electromagnetic emission end for wireless charging, and a permanent magnet is arranged around the magnetic induction coils to adsorb and calibrate the position of a device to be charged in the magnetic induction area of the magnetic induction coils.

[0014] Further, in the above technical solution, the bottom of the shell is provided with a first lock block and a second lock block, which stand on the bottom cover of the shell and can slide in the shell; when the sliding supports of the first plug, the second plug, and the third plug are all in the invalid position, the bottom surface of the actuating arm is lower than the upper end surface of the lock block, the first lock block is limited between the actuating arms of the second plug and the third plug, and the second lock block is limited between the actuating arms of the third plug and the first plug; the upper end surface of the first lock block and the second lock block is further provided with an inclined surface for guiding the actuating arm to slide downward; when the first plug or the second plug is in the effective position, the two lock blocks are pushed to the abutting position to block the actuating arm of the third plug from sliding to the effective position.

[0015] Compared with the prior art, the present application has the following beneficial effects: the sliding supports of the first and second plugs are both provided with Y shape, and the sliding supports of the three plugs are arranged in a superposed manner, i.e. the Y-shaped sliding supports of the second and third plugs are located in the space surrounded by the polarity arm and the ground wire arm of the first plug, so that the arrangement of the three plugs is more compact, the area required by the overall arrangement is reduced, the volume of the product is effectively reduced, the design of the control support for controlling the positions of the three plugs is more simple, and the three plugs can be grounded through the ground wire conductor needle, so that the use is safer. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a perspective view of the three plugs and the combination thereof in the present application;

[0017] Figure 2 is a perspective view of the assembly of the three plugs, the control support and the control knob in the present application;

[0018] Figure 3 is an assembly view of the control knob, the reset spring and the shell in the present application;

[0019] Figure 4 is a perspective exploded view of the present application;

[0020] Figure 5 is an assembly view of the fuse box in the present application;

[0021] Figure 6 is an assembly view of the three plugs in the locked state in the present application;

[0022] Figure 7 is a perspective view of the present application in the invalid state;

[0023] Figure 8 is a perspective view of the present application in the three effective states;

[0024] Figure 9 is a perspective view of another structure of the present application;

[0025] BRIEF DESCRIPTION OF DRAWINGS

[0026] 1 housing, 11 control knob, 111 elastic arm accommodating groove, 112 reset elastic sheet, 113 vertical leg, 114 inclined leg, 115 blocking arm, 12 control support, 13 left first positioning column, 131 left first top position, 14 right first positioning column, 141 right first top position, 15 left second positioning column, 151 left second top position, 16 right second positioning column, 161 right second top position, 17 first locking block, 171 upper end face, 172 lower sliding inclined surface, 18 second locking block, 19 conductive connecting sheet assembly, 2 fuse box, 21 fuse guide column, 22 guide hole, 23 working accommodating groove, 24 standby accommodating groove, 25 gap, 261 working fuse, 262 standby fuse, 271 left conductive clamping sheet, 272 right conductive clamping sheet, 3 first plug, 300 adapter contact sheet, 31 push button, 32 actuating arm, 33 sliding support, 331 polarity arm, 332 ground wire arm, 333 first top receiving position, 334 second top receiving position, 335 third top receiving position, 336 fourth top receiving position, 337 central groove, 341 left polarity conductive pin, 342 right polarity conductive pin, 343 ground wire conductive pin, 4 second plug, 41 push button, 42 actuating arm, 43 sliding support, 431 left arm, 432 right arm, 433 foot arm, 434 left arm top receiving position, 435 right arm top receiving position, 441 left polarity conductive pin, 442 right polarity conductive pin, 443 ground wire conductive pin, 5 third plug, 51 push button, 52 actuating arm, 53 sliding support, 531 left arm, 532 right arm, 533 foot arm, 534 fifth top receiving position, 535 sixth top receiving position, 541 left polarity conductive pin, 542 right polarity conductive pin, 543 ground wire conductive pin, 6 external plug, 91 wireless charging module, 911 induction coil, 912 magnet, 92 socket module, 921 socket elastic sheet, 93 power module, 94 USB charging port. DETAILED DESCRIPTION

[0027] The application will be further described below in connection with specific embodiments and drawings.

[0028] See Figures 1-9 As shown in the figure, it is a converter with multi-specification grounding plugs, which comprises a housing 1 and a plurality of different specification plugs with grounding function.

[0029] Among them, in combination with Figure 1As shown, the first plug 3, the second plug 4 and the third plug 5 each have three conductive pins, two of which are left and right polarity conductive pins arranged on the left and right sides of the plug, and the third conductive pin is used as a ground wire conductive pin; each of the three plugs is provided with a sliding bracket 33, 43, 53 to fix the position of the conductive pin, and each sliding bracket 33, 43, 53 is connected to an actuating arm 32, 42, 52, which passes through the side wall of the shell 1 and is connected to a push button 31, 41, 51, the push button 31, 41, 51 drives the sliding bracket 33, 43, 53 to slide up and down in the shell 1, and makes the conductive pin pass out of the shell 1 and be located in the effective position, thereby forming a usable conductive plug.

[0030] In combination Figure 1 As shown, the sliding bracket 33 of the first plug 3 is provided with a polarity arm 331 connected to the left and right polarity conductive pins 341, 342, and the sliding bracket 33 of the first plug 3 is provided with a ground wire arm 332 connected to the ground wire conductive pin 343.

[0031] In combination Figure 1 As shown, the sliding brackets 43, 53 of the second and third plugs 4, 5 are Y-shaped, referred to as Y-shaped brackets, wherein the left arm 431 and the right arm 432 of the Y-shaped bracket 43 of the second plug 4 are respectively arranged to place the left and right polarity conductive pins 441, 442, and the foot arm 433 of the Y-shaped bracket 43 is arranged to place the ground wire conductive pin 443; the left arm 531 and the right arm 532 of the Y-shaped bracket 53 of the third plug 5 are respectively arranged to place the left and right polarity conductive pins 541, 542, and the foot arm 533 of the Y-shaped bracket 53 is arranged to place the ground wire conductive pin 543.

[0032] In combination Figure 1As shown, the specific assembly structure of the first plug 3, the second plug 4 and the third plug 5 is that the ground wire arm 332 of the sliding support 33 of the first plug 3 is located between the left and right arms 431, 432 of the sliding support 43, the foot arm of the sliding support 43 of the second plug 4 is located between the left and right arms 531, 532 of the sliding support 53 of the third plug 4, and the foot arm of the sliding support 53 of the third plug 5 is located in the central groove 337 of the polarity arm 331 of the first plug 3. That is, from the top view, the sliding support 33 of the first plug 3, the sliding support 43 of the second plug 4 and the sliding support 53 of the third plug 4 are arranged in a mutual stacking manner, and the sliding support 43 of the second plug 4 and the sliding support 53 of the third plug 4 are distributed in the sliding support 33 of the first plug 3, that is, the two Y-shaped sliding supports 53 are located in the space surrounded by the polarity arm and the ground wire arm of the first plug, so that the arrangement of the three plugs is more compact, which is beneficial to reducing the area required by the overall layout, thereby effectively reducing the volume of the product, and in addition, the design of the control support for controlling the positions of the three plugs is more simple. At the same time, the three plugs can realize the grounding function through the ground conductive pins, and are safer to use.

[0033] In combination Figure 1 As shown, the part of the ground wire arm 332 of the sliding support 33 of the first plug 3 connecting the ground conductive pin 343 is provided with a first and a second receiving top 333, 334 on both sides, and the central groove 337 is provided with a third and a fourth receiving top 335, 336 on both sides, and the left and right arms 431, 432 of the Y-shaped support of the second plug 4 are provided with a left and a right arm receiving top 434, 435, and the fifth and the sixth receiving top 534, 535 of the Y-shaped support of the third plug 5 are located on the left and right sides of the foot arm 533; when the sliding supports 33, 43, 53 are in the invalid position, the corresponding conductive pins are accommodated in the shell 1, and when the sliding supports 33, 43, 53 are in the effective position, the corresponding conductive pins are extended out of the shell 1 and form the available conductive plug;

[0034] In combination Figure 2 and Figure 3As shown, a control bracket 12 is provided inside the housing 1. This control bracket 12 is located above three sets of sliding brackets 33, 43, and 53, and extends downwards with four positioning posts, namely left-first, right-first, left-second, and right-second positioning posts 13, 14, 15, and 16. The lower ends of the left-first, right-first, left-second, and right-second positioning posts 13, 14, 15, and 16 respectively form left-first, right-first, left-second, and right-second top positions 131, 141, 151, and 161. When the sliding bracket 33 of the first plug 3 slides downwards to the effective position, the left-first and right-first top positions 131 and 141 abut against the first and second abutment points 333 and 334 of the ground wire arm 332 of the first plug 3, while the left-second, right-first, and right-second positioning posts 131 and 141 abut against the first and second abutment points 333 and 334 of the ground wire arm 332 of the first plug 3. The right second top positions 151 and 161 abut against the third and fourth abutment points 335 and 336 of the polar arm 331; when the Y-shaped bracket 43 of the second plug 4 slides to the effective position, the left first and right first top positions 131 and 141 abut against the abutment points 434 and 435 of the left and right arms 431 and 432 of the Y-shaped bracket 43 of the second plug 4; when the Y-shaped bracket 53 of the third plug 5 slides to the effective position, the left second and right second top positions 151 and 161 abut against the fifth and sixth abutment points 534 and 535 on both sides of the foot arm 533 of the Y-shaped bracket 53 in the third plug 5; this ensures that each plug will not retract unexpectedly when it is in the effective position, thus ensuring product quality, such as Figure 8 As shown.

[0035] The control bracket 12 is equipped with a control button 11, which is partially exposed outside the housing 1. When the sliding brackets 33, 43, and 53 of the plugs 3, 4, and 5 are fixed in an effective position by the top positions 131, 141, 151, and 161 of the corresponding positioning posts 13, 14, 15, and 16, pressing the control button 11 can disengage the top of the sliding brackets 33, 43, and 53 from the top positions of the positioning posts 13, 14, 15, and 16. At this time, the corresponding plugs can be retracted to an inactive state. Figure 7 As shown.

[0036] To enable control button 11 to return to its original position, the following design was implemented: [Combined with...] Figure 3 As shown, the control button 11 of the control bracket 12 is equipped with a reset spring 112. The reset spring 112 is R-shaped and is called an R-shaped spring 112. The control button 11 has a spring arm receiving groove 111 inside the housing. The vertical foot 113 of the R-shaped spring 112 is inserted into the spring arm receiving groove 111. A downwardly extending blocking arm 115 is provided above the housing 11. The inclined foot 114 of the R-shaped spring abuts against the blocking arm 115 to form a counter-pushing force to restore the position of the control button 11. Thus, after the control button 11 is released, the control button 11 is reset by the reset spring 112.

[0037] Combination Figure 2 , Figure 6As shown, the bottom of the shell 1 is provided with a first locking block 17 and a second locking block 18, which stand on the bottom cover of the shell 1 and can slide in the shell 1; when the sliding supports 33, 43, 53 of the first plug 3, the second plug 4 and the third plug 5 are all in the invalid position, the bottom surfaces of the actuating arms 32, 42, 52 are lower than the upper end surfaces 171 of the locking blocks 17, 18, so that the first locking block 17 is limited between the actuating arms 42, 52 of the second plug 4 and the third plug 5, and the second locking block 18 is limited between the actuating arm 52 of the third plug 5 and the actuating arm 32 of the first plug 3; the upper end surfaces 171 of the first locking block and the second locking block are further provided with inclined surfaces 172 for guiding the downward sliding of the actuating arms, and the first locking block and the second locking block are the same in structure; when any plug slides downward, the corresponding actuating arm pushes the first locking block or the second locking block along the inclined surface 172 of the first locking block or the second locking block, so that the first locking block or the second locking block slides; when the first plug 3 or the second plug 4 is in the effective position, the two locking blocks 17, 18 are pushed to abut against each other, so as to block the downward sliding of the actuating arm 52 of the third plug 5 to the effective position.

[0038] In combination Figure 1 As shown, in the embodiment, the first plug 3 is a British plug, the second plug 4 is an American plug, and the third plug 5 is a Chinese plug or an Australian plug.

[0039] In combination Figure 4 As shown, the sliding supports of the plugs are all provided with adapter contacts 300 connected with the conductive pins, and the shell 11 is provided with a conductive connecting piece assembly 19 for transmitting power to the socket module 92 or the power module 93 on the product; when the plug slides to the effective position, the adapter contacts 300 are in contact with the conductive connecting piece assembly 19, so as to realize stable electrical connection.

[0040] In combination Figure 5 As shown, at least one fuse box guide column 21 and one fuse box 2 are arranged in the shell 11, the fuse box 2 is partially exposed outside the shell and has at least one guide hole 22 corresponding in diameter to the fuse box guide column 21, can move up and down along the direction of the guide column 21, and can slide from the shell 11 to the outside of the shell 11 to replace the fuse.

[0041] In combination Figure 5As shown, the side of the fuse box 2 is provided with a working accommodation groove 23 and a standby accommodation groove 24, and the working accommodation groove 23, the standby accommodation groove 24 and the gap 25 between the working accommodation groove 23 and the standby accommodation groove 24 are provided to provide the clamping force required when the fuse is placed in the accommodation groove; the working accommodation groove 23 is used to place the working fuse 261, and the standby accommodation groove 24 is used to place the standby fuse 262, which is used for standby, that is, only one standby fuse 262 is placed, so that the working fuse 261 can be removed later to replace the standby fuse 262, which is more convenient to use; The left and right conductive clamping pieces 271 and 272 are provided beside the working accommodation groove 23 to clamp the conductors at both ends of the working fuse 261, wherein the left conductive clamping piece 271 is connected to one of the socket spring sheets 921 of the socket module 92, and the right conductive clamping piece 272 is connected to the conductive connecting piece assembly 19, so as to realize the series use of the working fuse 261, and make the use of the application more safe and reliable.

[0042] In combination Figure 4 , Figure 8 and Figure 9 As shown, the power module 93 is connected to at least one USB charging port 94 or at least one wireless charging module 91.

[0043] As shown in Figure 4 , Figure 8 The power module 93 is also connected to the wireless charging module 91, and the wireless charging module 91 is connected to a group of magnetic induction coils 911, which serve as electromagnetic emission ends for wireless charging. The magnetic induction coils 911 are provided with permanent magnets 912 around them to adsorb and calibrate the position of the charged device in the magnetic induction area of the magnetic induction coils 911.

[0044] As shown in Figures 7-8 The socket module 92 is provided with a detachable external plug 6.

[0045] As shown in Figure 9 The power module 93 is connected to at least one USB charging port 94, and no wireless charging module 91 is designed.

[0046] As described above, the sliding supports 33, 43 of the first plug 3 and the second plug 4 are all designed in Y shape, and the sliding supports of the three plugs are arranged in a stacked manner, that is, the Y-shaped sliding support 53 of the second plug and the third plug is located in the space surrounded by the polarity arm and the ground wire arm of the first plug, so that the arrangement of the three plugs is more compact, which is beneficial to reduce the area required by the overall layout, thereby effectively reducing the volume of the product. In addition, the design of the control support for controlling the position of the three plugs can be more simple. At the same time, the three plugs can all realize the grounding function through the ground wire conductive needle, which is more safe to use.

[0047] Of course, the above merely illustrates the specific embodiments of the present application, and is not intended to limit the scope of the present application. Any equivalent changes or modifications made in accordance with the structure, features and principles described in the present application should be included in the scope of the present application.

Claims

1. A converter with multi-specification grounding plug, comprising a housing and a plurality of plugs of different specifications and all with grounding function, wherein, The first, second and third plugs each have three conductive pins, two of which are left and right polarity conductive pins arranged on the left and right sides of the plug, and the third is a ground conductive pin used as a ground wire; Each of the three plugs is provided with a sliding bracket to fix the position of the conductive pins, and each sliding bracket is connected with an actuating arm which passes through the side wall of the shell and is connected with a push button, the push button drives the sliding bracket to slide up and down in the shell, and makes the conductive pins pass out of the shell and be located in the effective position, thereby forming a usable conductive plug; the sliding bracket of the first plug is provided with a polarity arm to connect the left and right polarity conductive pins, and the sliding bracket of the first plug is provided with a ground wire arm to connect the ground conductive pin; characterized in that: The sliding brackets of the second and third plugs are Y-shaped, referred to as Y-shaped brackets, the left and right arms of the Y-shaped bracket are arranged to place the left and right polarity conductive pins, and the foot arm of the Y-shaped bracket is arranged to place the ground conductive pin; The ground wire arm of the sliding bracket of the first plug is located between the left and right arms of the sliding bracket of the second plug, the foot arm of the sliding bracket of the second plug is located between the left and right arms of the sliding bracket of the third plug, and the foot arm of the sliding bracket of the third plug is located in the central slot of the polarity arm of the first plug.

2. The converter having multi-specification grounding plug according to claim 1, characterized in that: The part of the ground wire arm of the sliding bracket of the first plug which connects the ground conductive pin is provided with first and second receiving portions on both sides, the central part of the polarity arm is provided with a central slot, the left and right arms of the Y-shaped bracket of the second plug are each provided with left and right arm receiving portions, and the fifth and sixth receiving portions of the Y-shaped bracket of the third plug are located on the left and right sides of the foot arm; When the sliding bracket is in the ineffective position, the corresponding conductive pin is accommodated in the shell, and when the sliding bracket is in the effective position, the corresponding conductive pin extends out of the shell and forms a usable conductive plug; A control bracket is arranged in the shell, the control bracket is located above the three groups of sliding brackets and extends downward to form four positioning columns, namely left first, right first, left second and right second positioning columns, and the lower ends of the left first, right first, left second and right second positioning columns form left first, right first, left second and right second top positions; when the sliding bracket of the first plug slides downward to the effective position, the left first and right first top positions abut against the first and second receiving portions of the ground wire arm of the first plug, and the left second and right second top positions abut against the third and fourth receiving portions of the polarity arm; When the Y-shaped bracket of the second plug slides to the effective position, the left first and right first top positions abut against the left and right arm receiving portions of the Y-shaped bracket of the second plug; When the Y-shaped bracket of the third plug slides to the effective position, the left second and right second top positions abut against the fifth and sixth receiving portions on both sides of the foot arm of the Y-shaped bracket of the third plug; The control bracket is provided with a control button which is partially exposed outside the shell; when the sliding bracket of the plug is fixed in the effective position by the top position of the corresponding positioning column, pressing the control button can make the receiving portion of the sliding bracket and the top position of the positioning column out of contact.

3. The converter having multi-specification grounding plug according to claim 1 or 2, characterized in that: The control knob of the control support is provided with a reset spring, the shape of the reset spring is R-shaped, which is called R-shaped spring, the control knob is provided with a spring arm accommodating groove in the shell, and the vertical foot of the R-shaped spring is inserted into the spring arm accommodating groove; a downward extending blocking arm is arranged on the shell, and the inclined foot of the R-shaped spring abuts against the blocking arm to form a counter thrust to restore the position of the control knob.

4. The converter having multi-specification grounding plug according to claim 1, characterized in that: The sliding support of the plug is provided with a switching contact piece connected with the conductive needle, and a conductive connecting piece assembly is arranged in the shell, which is used for transmitting power to the socket module or the power module on the product; the power module is connected with at least one USB charging port or at least one wireless charging module; when the plug slides to the effective position, the switching contact piece contacts the conductive connecting piece assembly.

5. The converter having multi-specification grounding plug according to claim 1, characterized in that: At least one fuse box guide column and a fuse box are arranged in the shell, the fuse box is partially exposed outside the shell, has at least one guide hole corresponding in diameter to the fuse box guide column, can move up and down along the direction of the guide column, and can slide from inside the shell to outside the shell to replace the fuse.

6. The converter having multi-specification grounding plug according to claim 5, characterized in that: The side of the fuse box is provided with a working accommodating groove and a standby accommodating groove, and gaps are arranged between the working accommodating groove, the standby accommodating groove and the working accommodating groove and the standby accommodating groove to provide the clamping force required when the fuses are placed in the accommodating grooves; the working accommodating groove is used for placing a working fuse, and the standby accommodating groove is used for placing a standby fuse; a left conductive clamp piece and a right conductive clamp piece are arranged beside the working accommodating groove to clamp the conductors at two ends of the working fuse, wherein the left conductive clamp piece is connected with a socket spring of the socket module, and the right conductive clamp piece is connected with the conductive connecting piece assembly.

7. The converter having multi-specification grounding plug according to claim 1, characterized in that: The first plug is a British plug, the second plug is an American plug, and the third plug is a Chinese plug or an Australian plug.

8. The converter having multi-specification grounding plug according to claim 1 or 4, characterized in that: The power module is further connected with a wireless charging module, the wireless charging module is connected with a group of magnetic induction coils, the magnetic induction coils serve as electromagnetic emission ends for wireless charging, and permanent magnets are arranged around the magnetic induction coils to adsorb and calibrate the position of a device to be charged in the magnetic induction area of the magnetic induction coils.

9. The converter having multi-specification grounding plug according to claim 1 or 4, characterized in that: The bottom of the shell is provided with a first lock block and a second lock block, which stand on the bottom cover of the shell and can slide in the shell; when the sliding supports of the first plug, the second plug and the third plug are all in the invalid position, the bottom surface of the actuating arm is lower than the upper end surface of the lock block, the first lock block is limited between the actuating arms of the second plug and the third plug, and the second lock block is limited between the actuating arms of the third plug and the first plug; the upper end surfaces of the first lock block and the second lock block are further provided with inclined surfaces for guiding the actuating arm to slide downward; when the first plug or the second plug is in the effective position, the two lock blocks are pushed to abut against each other to block the actuating arm of the third plug from sliding to the effective position.

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