A multi-country converter

Abstract

The present invention is applicable to the field of converters, and provides a multi-country converter, which includes a housing; a plurality of plug components, the plug components can be telescoped in the up-and-down direction of the housing, and the plug components can be received in the housing or protrude relative to the housing; and a plurality of self-locking plates arranged in the housing along the telescopic direction of the plug components, the plurality of self-locking plates are arranged adjacent to each other and can move in the left-and-right direction of the housing; when one of the plug components protrudes relative to the housing, the plug component pushes its corresponding self-locking plate to move out of the way of the plug component, and the plug component simultaneously drives the remaining self-locking plates to move, so that the remaining self-locking plates respectively resist the remaining plug components from protruding relative to the housing. By providing a plurality of self-locking plates, when using one of the plug components, the plug component can drive the remaining self-locking plates to move and block other plug components, preventing other plug components from protruding from the housing and posing a potential safety hazard of electric shock to users, and having good safety performance.

Description

Technical Field

[0001] The present invention relates to a converter, and more particularly to a multi-country converter. Background Art

[0002] A converter is to convert one form of socket into another form or multiple forms of sockets. If it is necessary to convert between sockets of multiple different countries and the national standard socket, a multi-country converter is required. For example, converting a European standard socket into a national standard socket, and converting a US standard socket into a national standard socket, so that electrical appliances with national standard plugs can be powered through the multi-country converter on European standard and US standard sockets, such as providing power for a mobile phone charger with a national standard plug and a laptop power supply.

[0003] In the prior art, a multi-country converter usually has several pin assemblies of different national standards, and each pin assembly corresponds to a separate toggle button. When a user uses the multi-country converter, toggling a toggle button can drive the pins of the corresponding pin assembly to extend out of the housing, so as to adapt to the socket standards of multiple countries. However, since the existing multi-country converters usually do not have a blocking structure for blocking the pin assemblies, when using one of the pin assemblies, if other pin assemblies are not blocked, the user is likely to accidentally toggle the toggle buttons of other pin assemblies, resulting in the pins of other pin assemblies extending out of the housing, posing a safety hazard of electric shock to the user and having poor safety performance. Summary of the Invention

[0004] The present invention provides a multi-country converter, aiming to solve the problem of poor safety performance and potential safety hazard of electric shock to users existing in the multi-country converters of the prior art.

[0005] The present application is implemented as follows. A multi-country converter includes:

[0006] A housing provided with jacks on the housing;

[0007] A plurality of pin assemblies movably arranged in the housing, the pin assemblies can be telescoped in the up and down direction of the housing, and the pin assemblies can be received in the housing or extend out relative to the housing; and

[0008] A plurality of self-locking plates arranged in the housing along the telescoping direction of the pin assemblies, the plurality of self-locking plates are arranged adjacent to each other and can move in the left and right direction of the housing;

[0009] When one of the pin assemblies extends out relative to the housing, the pin assembly pushes its corresponding self-locking plate to move out of the way of the pin assembly, and the pin assembly simultaneously drives the remaining self-locking plates to move, so that the remaining self-locking plates respectively resist the remaining pin assemblies from extending out relative to the housing.

[0010] Preferably, each of the plug components includes a fixed seat, a toggle button connected to the fixed seat, and a pin fixed to the fixed seat; each of the self-locking plates is disposed between the fixed seats of two adjacent plug components, and the fixed seat of the plug component is cooperatively arranged with the self-locking plate and can drive the self-locking plate to move between two adjacent fixed seats.

[0011] Preferably, a protrusion is provided on each of the opposite sides of each self-locking plate, and a mating surface is provided on the upper portion of each protrusion; when one of the plug components extends out relative to the housing, the fixed seat of the plug component cooperatively contacts and pushes the self-locking plate to move with the mating surface on the corresponding self-locking plate, and the plug component drives the remaining self-locking plates to move, so that the protrusions of the remaining self-locking plates respectively resist the fixed seats of the remaining plug components.

[0012] Preferably, a positioning bump is formed on the top of each self-locking plate, and each positioning bump is movably disposed between the two fixed seats of two adjacent plug components.

[0013] Preferably, the plurality of self-locking plates are arranged in a coplanar manner.

[0014] Preferably, the plug components include a first plug component, a second plug component, and a third plug component; the self-locking plates include a first self-locking plate and a second self-locking plate. The first self-locking plate is disposed between the first fixed seat of the first plug component and the second fixed seat of the second plug component, and the second self-locking plate is disposed between the second fixed seat of the second plug component and the third fixed seat of the third plug component; the first self-locking plate can move between the first fixed seat of the first plug component and the second fixed seat of the second plug component and resist the first fixed seat of the first plug component or the second fixed seat of the second plug component; the second self-locking plate can move between the second fixed seat of the second plug component and the third fixed seat of the third plug component and resist the second fixed seat of the second plug component or the third fixed seat of the third plug component.

[0015] Preferably, a first protrusion and a second protrusion are respectively provided on the opposite sides of the first self-locking plate, a first mating surface is provided on the upper portion of the first protrusion, and a second mating surface is provided on the upper portion of the second protrusion; a third protrusion and a fourth protrusion are respectively provided on the opposite sides of the second self-locking plate, a third mating surface is provided on the upper portion of the third protrusion, and a fourth mating surface is provided on the upper portion of the fourth protrusion;

[0016] The first fixed seat of the first bolt assembly is arranged on one side of the first mating surface and can be in sliding contact with the first mating surface. The second fixed seat of the second bolt assembly is arranged between the second mating surface and the third mating surface and can be in sliding contact with the second mating surface and the third mating surface. The third fixed seat of the third bolt assembly is arranged on one side of the fourth mating surface and can be in sliding contact with the fourth mating surface.

[0017] Preferably, the bolt assembly further includes a fourth bolt assembly; the self-locking plate further includes a third self-locking plate. The third self-locking plate is arranged between the third fixed seat of the third bolt assembly and the fourth fixed seat of the fourth bolt assembly. The third self-locking plate can move between the third fixed seat of the third bolt assembly and the fourth fixed seat of the fourth bolt assembly, and the third self-locking plate can resist the third fixed seat of the third bolt assembly or the fourth fixed seat of the fourth bolt assembly.

[0018] Preferably, a fifth protrusion and a sixth protrusion are respectively arranged on opposite sides of the third self-locking plate. A fifth mating surface is arranged on the upper part of the fifth protrusion, and a sixth mating surface is arranged on the upper part of the sixth protrusion.

[0019] The third fixed seat of the third bolt assembly is arranged between the fourth mating surface and the fifth mating surface and can be in sliding contact with the fourth mating surface and the fifth mating surface. The fourth fixed seat of the fourth bolt assembly is arranged on one side of the sixth mating surface and can be in sliding contact with the sixth mating surface.

[0020] Preferably, the multi-country converter further includes a base arranged in the housing. The base includes a base plate, support columns arranged on the base plate, and partition plates arranged on the base plate and oppositely arranged in pairs. Each two partition plates form a limiting groove at intervals. The self-locking plate is arranged in the limiting groove and can move left and right along the limiting groove. Each bolt assembly is installed on the support column and can slide along the support column.

[0021] By arranging a plurality of self-locking plates, when using one of the bolt assemblies, when the bolt assembly extends out, it can push the corresponding self-locking plate to move out of the way, and at the same time, the bolt assembly drives the remaining self-locking plates to move, so that the remaining self-locking plates respectively resist the remaining bolt assemblies to prevent the remaining bolt assemblies from extending out relative to the housing, so that other bolt assemblies cannot extend out of the housing, effectively preventing other bolt assemblies from extending out of the housing and causing electric shock to the user, thus ensuring good safety performance of the multi-country converter. At the same time, by arranging each self-locking plate along the telescopic direction of the bolt assembly, the self-locking plate can move left and right along the housing to open or block the corresponding bolt assembly. The moving stroke of the self-locking plate is small, the occupied space is small, and the structure is simple and compact. Description of the Drawings

[0022] Figure 1 Isometric view of the multi-country converter provided by the embodiment of the present invention;

[0023] Figure 2 Exploded isometric view of the three-dimensional structure of the multi-country converter provided by the embodiment of the present invention;

[0024] Figure 3 Isometric view of the multi-country converter provided by the embodiment of the present invention after removing the housing;

[0025] Figure 4 Isometric view of a partial structure of the multi-country converter provided by the embodiment of the present invention;

[0026] Figure 5 Cross-sectional view of a partial structure of the multi-country converter provided by the embodiment of the present invention;

[0027] Figure 6 Isometric view when the base and the self-locking plate of the multi-country converter provided by the embodiment of the present invention are assembled;

[0028] Figure 7 Isometric view of the base of the multi-country converter provided by the embodiment of the present invention;

[0029] Figure 8 Cross-sectional view of a partial structure when the first pin assembly of the multi-country converter provided by the embodiment of the present invention extends out;

[0030] Figure 9 Cross-sectional view of a partial structure when the second pin assembly of the multi-country converter provided by the embodiment of the present invention extends out of the housing;

[0031] Figure 10 Cross-sectional view of a partial structure when the third pin assembly of the multi-country converter provided by the embodiment of the present invention extends out of the housing;

[0032] Figure 11 Cross-sectional view of a partial structure when the fourth pin assembly of the multi-country converter provided by the embodiment of the present invention extends out of the housing. Detailed implementation manners

[0033] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0034] The multi-country converter provided by the present invention is provided with a plurality of self-locking plates. When using one of the plug components, when the plug component extends, it can push the corresponding self-locking plate to move out of the way of the plug component, and the plug component simultaneously drives the other self-locking plates to move, so that the other self-locking plates respectively resist the other plug components, preventing the other plug components from extending relative to the housing, so that the other plug components cannot extend out of the housing, effectively preventing the user from getting an electric shock caused by the other plug components extending out of the housing, thus ensuring that the multi-country converter has good safety performance. At the same time, by arranging each self-locking plate along the telescopic direction of the plug component, the self-locking plate can move in the left-right direction of the housing to open or block the corresponding plug component. The moving stroke of the self-locking plate is small, the occupied space is small, and the structure is simple and compact.

[0035] Please refer to Figures 1 - 5 As shown in the figure, the multi-country converter includes: a housing 1, on which there are jacks 13; a plurality of plug components 2 movably arranged on the housing 1, the plug components 2 can telescopically move in the up-down direction of the housing 1, and the plug components 2 can be received in the housing 1 or extend relative to the housing 1; and a plurality of self-locking plates 3 arranged in the housing 1 along the telescopic direction of the plug components 2, the plurality of self-locking plates 3 are adjacent to each other and can move in the left-right direction of the housing 1; when one of the plug components 2 extends relative to the housing 1, the plug component 2 pushes its corresponding self-locking plate 3 to move out of the way of the plug component 2, and the plug component 2 simultaneously drives the other self-locking plates 3 to move, so that the other self-locking plates 3 respectively resist the other plug components 2 from extending relative to the housing 1.

[0036] The multi-country converter according to the embodiment of the present invention is provided with a plurality of self-locking plates. When using one of the plug components, when the plug component extends, it can push the corresponding self-locking plate to move out of the way of the plug component, and the plug component simultaneously drives the other self-locking plates to move, so that the other self-locking plates respectively resist the other plug components from extending relative to the housing, so that the other plug components cannot extend out of the housing, effectively preventing the user from getting an electric shock caused by the other plug components extending out of the housing, thus ensuring that the multi-country converter has good safety performance. At the same time, by arranging each self-locking plate along the telescopic direction of the plug component, the self-locking plate can move in the left-right direction of the housing to open or block the corresponding plug component, the structure is simple, and the occupied space of the self-locking plate is small.

[0037] In the embodiment of the present invention, the housing 1 includes a bottom shell 11 and an upper shell 12 that is assembled with the bottom shell 11 to form a complete accommodation space, and the plug component 2 can telescopically move in the up-down direction of the bottom shell 11 and the upper shell 12. A plurality of jacks 13 for users to charge are arranged on the surface of the upper shell 12.

[0038] Please refer to Figures 6 - 7, as an embodiment of the present invention, the multi-country converter further includes a base 4 disposed in the housing 1. The base 4 includes a base plate 41, a support column 42 disposed on the base plate 41, and partition plates 43 disposed on the base plate and arranged in pairs opposite to each other. Each two partition plates 42 form a limiting groove 44 at intervals. The self-locking plate 3 is disposed in the limiting groove 44 and can move left and right along the limiting groove 44. Each pin assembly 2 is installed on the support column 42 and can slide along the support column 42. By providing the limiting groove to limit the self-locking plate, it is ensured that the self-locking plate moves smoothly during the movement.

[0039] In the embodiment of the present invention, each pin assembly 2 includes a fixed seat 21, a toggle button 22 connected to the fixed seat 21, and a pin 23 fixed to the fixed seat 21. The toggle button 22 can slide along the housing 1 and drive the pin 23 to extend out of or be received in the housing 1 relative to the housing 1. Each self-locking plate 3 is disposed between the fixed seats 21 of two adjacent pin assemblies 2. The fixed seat 21 of the pin assembly 2 is cooperatively arranged with the self-locking plate 3 and can drive the self-locking plate 3 to move between two adjacent fixed seats 21.

[0040] When using one of the pin assemblies 2, by toggling the corresponding toggle button 22 of the pin assembly 2, the toggle button 22 drives the fixed seat 21 to move downward along the housing 1, so that the pin 23 on the fixed seat 21 extends out of the housing 1 relative to the housing 1. During the extension process of the pin assembly 2, the fixed seat 21 of the pin assembly 2 pushes the corresponding self-locking plate 3 to move, so that the self-locking plate 3 moves to give way to the pin assembly 2. At the same time, the fixed seat 21 of the pin assembly 2 directly pushes or drives the other self-locking plates 3 to move through the self-locking plate 3 and resists the fixed seats 21 of the other pin assemblies 2, so that the fixed seats 21 of the other pin assemblies 2 cannot move relative to the housing 1, thereby preventing the other pin assemblies from extending relative to the housing. It is ensured that when one pin assembly extends, the other pin assemblies cannot extend relative to the housing, and the safety performance is good.

[0041] As an embodiment of the present invention, a protrusion is respectively provided on each of the opposite sides of each self-locking plate 3, and a mating surface is provided on the upper part of each protrusion. When one of the pin assemblies 2 extends out of the housing 1, the fixed seat 21 of the pin assembly contacts and cooperates with the mating surface on the corresponding self-locking plate 3 and drives the self-locking plate 3 to move, and the pin assembly 2 drives the other self-locking plates 3 to move, so that the protrusions of the other self-locking plates 3 respectively resist the fixed seats of the other pin assemblies, so that the other pin assemblies cannot extend relative to the housing. Among them, the mating surface can be an inclined surface or a curved surface. In this embodiment, the mating surface is set as an inclined surface.

[0042] In this embodiment, the protrusion of the self-locking plate 3 is in abutting cooperation with the fixed seat 21 of the plug pin assembly 2, restricting the movement of the fixed seat 21, thereby preventing the plug pins 23 on the fixed seat 21 from protruding relative to the housing 1. Since the protrusion of the self-locking plate 3 is directly in abutting contact with the fixed seat 21 of the plug pin assembly 2, there is no need to directly abut against the plug pins 23, effectively preventing damage to the plug pins 23.

[0043] Please refer to Figure 8 , as an embodiment of the present invention, a positioning convex point 30 is formed at the top protrusion of each self-locking plate 3, and each positioning convex point 30 is movably arranged between the fixed seats 21 of two adjacent plug pin assemblies 2. By setting the positioning convex points 30, the positioning convex points 30 are in contact and cooperation with the fixed seats 21 of the plug pin assembly 2 to limit the movement stroke of each self-locking plate, ensuring the accurate cooperation between the self-locking plate 3 and the fixed seats of each plug pin assembly.

[0044] As an embodiment of the present invention, the plug pin assembly 2 includes a first plug pin assembly 24, a second plug pin assembly 25 and a third plug pin assembly 26; the self-locking plate 3 includes a first self-locking plate 31 and a second self-locking plate 32. The first self-locking plate 31 is arranged between the first fixed seat 241 of the first plug pin assembly 24 and the second fixed seat 251 of the second plug pin assembly 25, and the second self-locking plate 32 is arranged between the second fixed seat 251 of the second plug pin assembly 25 and the third fixed seat 261 of the third plug pin assembly 26.

[0045] The first self-locking plate 31 can move between the first fixed seat 241 of the first plug pin assembly 24 and the second fixed seat 251 of the second plug pin assembly 25 and abut against the first fixed seat 241 of the first plug pin assembly 24 or the second fixed seat 251 of the second plug pin assembly 25; the second self-locking plate 32 can move between the second fixed seat 251 of the second plug pin assembly 25 and the third fixed seat 261 of the third plug pin assembly 26 and abut against the second fixed seat 251 of the second plug pin assembly 25 or the third fixed seat 261 of the third plug pin assembly 26.

[0046] In this embodiment, the first plug pin assembly 24 includes a first fixed seat 241, a first toggle button 242 connected to the first fixed seat 241, and a first plug pin 243 fixed on the first fixed seat 241; the second plug pin assembly 25 includes a second fixed seat 251, a second toggle button 252 connected to the second fixed seat 251, and a second plug pin 253 fixed on the second fixed seat 251; the third plug pin assembly 26 includes a third fixed seat 261, a third toggle button 262 connected to the third fixed seat 261, and a third plug pin 263 fixed on the third fixed seat 261.

[0047] Refer to again Figure 5In the embodiment of the present invention, a first protrusion 311 and a second protrusion 312 are respectively provided on opposite sides of the first self-locking plate 31, a first mating surface 3111 is provided on the upper part of the first protrusion 311, and a second mating surface 3121 is provided on the upper part of the second protrusion 312; a third protrusion 321 and a fourth protrusion 322 are respectively provided on opposite sides of the second self-locking plate 32, a third mating surface 3211 is provided on the upper part of the third protrusion 321, and a fourth mating surface 3221 is provided on the upper part of the fourth protrusion 322.

[0048] The first fixed seat 241 of the first latch assembly 24 is arranged on one side of the first mating surface 3111 and can be in sliding contact with the first mating surface 3111, the second fixed seat 251 of the second latch assembly 25 is arranged between the second mating surface 3121 and the third mating surface 3211 and can be in sliding contact with the second mating surface 3121 and the third mating surface 3211, and the third fixed seat 261 of the third latch assembly 26 is arranged on one side of the fourth mating surface 3221 and can be in sliding contact with the fourth mating surface 3221.

[0049] like Figure 8 As shown, in the present embodiment, when the first latch assembly 24 is used, the first toggle button 242 of the first latch assembly 24 is toggled, the first pin 243 of the first latch assembly 24 moves downward, the first fixing seat 241 of the first latch assembly 24 slides in contact with the first mating surface 3111 of the first self-locking plate 31 and continuously moves downward, the first fixing seat 241 of the first latch assembly 24 continuously pushes the first self-locking plate 31 to move rightward, until the positioning protrusion 30 of the first self-locking plate 31 cooperates with the second fixing seat 251 of the second latch assembly 25, at this time, the second protrusion 312 of the first self-locking plate 31 is located below the second fixing seat 251 of the second latch assembly 25 and blocks the second fixing seat 251 of the second latch assembly 25, so that the second fixing seat 251 of the second latch assembly 25 cannot move downward, thereby preventing the second latch assembly 25 from extending relative to the housing 1. At the same time, the first self-locking plate 31 pushes the second self-locking plate 32 to move rightward during the process of moving to the right, so that the positioning protrusion 30 of the second self-locking plate 32 is in contact with the third fixing seat 261 of the third latch assembly 26. At this time, the fourth protrusion 322 of the second self-locking plate 32 is located below the third fixing seat 261 of the third latch assembly 26 and blocks the third fixing seat 261 of the third latch assembly 26, so that the third fixing seat 261 of the third latch assembly 26 cannot move downward, thereby realizing the self-locking of the second latch assembly 25 and the third latch assembly 26, ensuring that the second latch assembly 25 and the third latch assembly 26 cannot extend relative to the shell, realizing the self-locking function, and playing a safety protection role.

[0050] like Figure 9As shown, when using the second latch assembly 25, toggle the second toggle button 252 of the second latch assembly 25. The second pin 252 of the second latch assembly 25 moves downward, and the second fixed seat 251 of the second latch assembly 25 simultaneously moves downward along the second mating surface 3121 of the first self-locking plate 31 and the third mating surface 3211 of the second self-locking plate 32, and pushes the first self-locking plate 31 to move leftward and the second self-locking plate 32 to move rightward until the positioning bump 30 of the first self-locking plate 31 is in mating contact with the first fixed seat 241 of the first latch assembly 24 and the positioning bump 30 of the second self-locking plate 32 is in mating contact with the third fixed seat 261 of the third latch assembly 26. At this time, the first protrusion 311 of the first self-locking plate 31 is located below the first fixed seat 241 of the first latch assembly 24 and resists the first fixed seat 241 of the first latch assembly 24, and the fourth protrusion 322 of the second self-locking plate 32 is located below the third fixed seat 261 of the third latch assembly 26 and resists the third fixed seat 261 of the third latch assembly 26, so that the first latch assembly 24 and the third latch assembly 26 cannot move downward, ensuring that the first latch assembly 24 and the third latch assembly 26 cannot protrude relative to the housing when the first latch assembly 24 protrudes, and realizing the self-locking function.

[0051] As Figure 10 shown, when using the third latch assembly 26, toggle the third toggle button 262 of the third latch assembly 26. The third pin 263 of the third latch assembly 26 moves downward, and the third fixed seat 261 of the third latch assembly 26 moves downward along the fourth mating surface 3221 of the second self-locking plate 32, and pushes the second self-locking plate 32 to move leftward. The second self-locking plate 32 pushes the first self-locking plate 31 to move leftward until the positioning bump 30 of the first self-locking plate 31 is in mating contact with the first fixed seat 241 of the first latch assembly 24 and the positioning bump 30 of the second self-locking plate 32 is in mating contact with the second fixed seat 251 of the second latch assembly 25. At this time, the first protrusion 311 of the first self-locking plate 31 is located below the first fixed seat 241 of the first latch assembly 24 and resists the first fixed seat 241 of the first latch assembly 24, and the third protrusion 321 of the second self-locking plate 32 is located below the second fixed seat 251 of the second latch assembly 25 and resists the second fixed seat 251 of the second latch assembly 25, so that the first latch assembly 24 and the second latch assembly 25 cannot move downward, realizing the self-locking of the first latch assembly 24 and the second latch assembly 25, ensuring that the first latch assembly 24 and the second latch assembly 25 cannot protrude relative to the housing when the third latch assembly 26 protrudes, and realizing the self-locking function.

[0052] As Figure 11As shown in the figure, as an embodiment of the present invention, the latch assembly further includes a fourth latch assembly 27; the self-locking plate 3 further includes a third self-locking plate 33, and the third self-locking plate 33 is disposed between the third fixed seat 261 of the third latch assembly 26 and the fourth fixed seat 271 of the fourth latch assembly 27. The third self-locking plate 33 can move between the third fixed seat 261 of the third latch assembly 26 and the fourth fixed seat 271 of the fourth latch assembly 27, and the third self-locking plate 33 can resist the third fixed seat 261 of the third latch assembly 26 or the fourth fixed seat 271 of the fourth latch assembly 27.

[0053] In an embodiment of the present invention, a fifth protrusion 331 and a sixth protrusion 332 are respectively disposed on opposite sides of the third self-locking plate 33. A fifth mating surface 3311 is provided on the upper portion of the fifth protrusion 331, and a sixth mating surface 3321 is provided on the upper portion of the sixth protrusion 332; the third fixed seat 261 of the third latch assembly 26 is disposed between the fourth mating surface 3221 and the fifth mating surface 3311 and can be in sliding contact with the fourth mating surface 3221 and the fifth mating surface 3311, and the fourth fixed seat 271 of the fourth latch assembly 27 is disposed on one side of the sixth mating surface 3321 and can be in sliding contact with the sixth mating surface 3321.

[0054] In this embodiment, when using the fourth latch assembly 27, the fourth toggle button 272 of the fourth latch assembly 27 is toggled, the fourth pin 273 of the fourth latch assembly 27 moves downward, the fourth fixed seat 271 of the fourth latch assembly 27 moves downward along the sixth mating surface 3321 of the third self-locking plate 33, and the third self-locking plate 33 is pushed to move leftward. During the leftward movement of the third self-locking plate 33, the second self-locking plate 32 and the first self-locking plate 31 are pushed to move leftward until the positioning bump 30 of the third self-locking plate 33 is in mating contact with the third fixed seat 261 of the third latch assembly 26, the positioning bump 30 of the second self-locking plate 32 is in mating contact with the second fixed seat 251 of the second latch assembly 25, and the positioning bump 30 of the first self-locking plate 31 is in mating contact with the first fixed seat 241 of the first latch assembly 24. At this time, the first protrusion 311 of the first self-locking plate 31 is located below the first fixed seat 241 of the first latch assembly 24 and resists the first fixed seat 241 of the first latch assembly 24, the third protrusion 321 of the second self-locking plate 32 is located below the second fixed seat 251 of the second latch assembly 25 and resists the second fixed seat 251 of the second latch assembly 25, and the fifth protrusion 331 of the third self-locking plate 33 is located below the third fixed seat 261 of the third latch assembly 26 and resists the third fixed seat 261 of the third latch assembly 26. Thus, the first latch assembly 24, the second latch assembly 25, and the third latch assembly 26 cannot move downward, realizing the self-locking of the first latch assembly 24, the second latch assembly 25, and the third latch assembly 26, and ensuring that the first latch assembly 24, the second latch assembly 25, and the third latch assembly 26 cannot protrude relative to the housing when the fourth latch assembly 27 extends, realizing the self-locking function.

[0055] In an embodiment of the present invention, the first plug component 24, the second plug component 25, the third plug component 26 and the fourth plug component 27 are respectively a British standard plug component, a US standard plug component, an Australian standard plug component and a European standard plug component. Among them, the first plug component 24, the second plug component 25, the third plug component 26 and the fourth plug component 27 can also be set as plug components of other national standards.

[0056] As an embodiment of the present invention, several self-locking plates 3 are arranged coplanarly. Specifically, the first self-locking plate 31, the second self-locking plate 32 and the third self-locking plate 33 are located on the same plane. By arranging the first self-locking plate, the second self-locking plate and the third self-locking plate on the same plane, the occupied space can be effectively saved, the structure is compact, and the force between the self-locking plates is balanced, making the movement of each self-locking plate smoother.

[0057] The multi-country converter provided by the present invention is provided with several self-locking plates. When using one of the plug components, when the plug component extends, it can push the corresponding self-locking plate to move out of the way of the plug component, and at the same time, the plug component drives the remaining self-locking plates to move, so that the remaining self-locking plates respectively resist the remaining plug components to prevent the remaining plug components from extending relative to the housing, so that the other plug components cannot extend out of the housing, effectively preventing the other plug components from extending out of the housing and causing electric shock to the user, thus ensuring good safety performance of the multi-country converter. At the same time, by arranging the self-locking plates along the telescopic direction of the plug component, the self-locking plate can move along the left and right directions of the housing to open or block the corresponding plug component. The movement stroke of the self-locking plate is small, the occupied space is small, and the structure is simple and compact.

[0058] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-country converter, characterized in that, Comprising: A housing provided with a jack on the housing; the housing includes a bottom case and an upper case that is assembled with the bottom case to form a receiving space; A plurality of latch assemblies movably arranged on the housing, the latch assemblies can be telescoped in the up and down direction of the housing, and the latch assemblies can be received in the housing or protrude relative to the housing; And A plurality of self-locking plates arranged in the housing along the telescoping direction of the latch assemblies, the self-locking plates include a first self-locking plate and a second self-locking plate, and the plurality of self-locking plates are arranged adjacent to each other and can move in the left and right direction of the housing; When one of the latch assemblies protrudes relative to the housing, the latch assembly pushes its corresponding self-locking plate to move out of the way of the latch assembly, and the latch assembly simultaneously drives the remaining self-locking plates to move, so that the remaining self-locking plates respectively resist the remaining latch assemblies from protruding relative to the housing; Each latch assembly includes a fixed seat, a toggle button connected to the fixed seat, and a pin fixed on the fixed seat; each self-locking plate is arranged between the fixed seats of two adjacent latch assemblies, and the fixed seat of the latch assembly is cooperatively arranged with the self-locking plate and can drive the self-locking plate to move between two adjacent fixed seats; The latch assemblies include a first latch assembly, a second latch assembly and a third latch assembly; the first self-locking plate is arranged between the first fixed seat of the first latch assembly and the second fixed seat of the second latch assembly, and the second self-locking plate is arranged between the second fixed seat of the second latch assembly and the third fixed seat of the third latch assembly; the first self-locking plate can move between the first fixed seat of the first latch assembly and the second fixed seat of the second latch assembly and resist the first fixed seat of the first latch assembly or the second fixed seat of the second latch assembly; the second self-locking plate can move between the second fixed seat of the second latch assembly and the third fixed seat of the third latch assembly and resist the second fixed seat of the second latch assembly or the third fixed seat of the third latch assembly; The opposite sides of the first self-locking plate are respectively provided with a first protrusion and a second protrusion, the upper part of the first protrusion is provided with a first mating surface, and the upper part of the second protrusion is provided with a second mating surface; the opposite sides of the second self-locking plate are respectively provided with a third protrusion and a fourth protrusion, the upper part of the third protrusion is provided with a third mating surface, and the upper part of the fourth protrusion is provided with a fourth mating surface; The first fixed seat of the first latch assembly is arranged on one side of the first mating surface and can be in sliding contact with the first mating surface, the second fixed seat of the second latch assembly is arranged between the second mating surface and the third mating surface and can be in sliding contact with the second mating surface and the third mating surface, and the third fixed seat of the third latch assembly is arranged on one side of the fourth mating surface and can be in sliding contact with the fourth mating surface.

2. The multi-country converter according to claim 1, characterized in that, A projection is respectively provided on each of the opposite sides of each self-locking plate, and a mating surface is provided on the upper portion of each projection; when one of the pin assemblies extends out relative to the housing, the fixed seat of the pin assembly is in mating contact with the mating surface on the corresponding self-locking plate and pushes the self-locking plate to move, and the pin assembly drives the remaining self-locking plates to move, so that the projections of the remaining self-locking plates respectively resist the fixed seats of the remaining pin assemblies.

3. The multi-country converter according to claim 1 or 2, characterized in that, A positioning bump is formed by the projection on the top of each self-locking plate, and each positioning bump is movably arranged between the two fixed seats of the two adjacent pin assemblies.

4. The multi-country converter according to claim 1, characterized in that, The plurality of self-locking plates are arranged in a coplanar manner.

5. The multi-country converter according to claim 1, characterized in that, The pin assembly further includes a fourth pin assembly; the self-locking plate further includes a third self-locking plate, and the third self-locking plate is arranged between the third fixed seat of the third pin assembly and the fourth fixed seat of the fourth pin assembly. The third self-locking plate can move between the third fixed seat of the third pin assembly and the fourth fixed seat of the fourth pin assembly, and the third self-locking plate can resist the third fixed seat of the third pin assembly or the fourth fixed seat of the fourth pin assembly.

6. The multi-country converter according to claim 5, characterized in that, Fifth and sixth projections are respectively provided on the opposite sides of the third self-locking plate, a fifth mating surface is provided on the upper portion of the fifth projection, and a sixth mating surface is provided on the upper portion of the sixth projection. The third fixed seat of the third pin assembly is arranged between the fourth mating surface and the fifth mating surface and can be in sliding contact with the fourth mating surface and the fifth mating surface, and the fourth fixed seat of the fourth pin assembly is arranged on one side of the sixth mating surface and can be in sliding contact with the sixth mating surface.

7. The multi-country converter according to claim 1, characterized in that, The multi-country converter further includes a base arranged in the housing. The base includes a base plate, support columns arranged on the base plate, and partition plates arranged on the base plate and oppositely arranged in pairs. Each two partition plates form a limiting groove at intervals. The self-locking plate is arranged in the limiting groove and can move left and right along the limiting groove, and each pin assembly is installed on the support column and can slide along the support column.

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