CN207664291U - a power converter - Google Patents

Abstract

The utility model discloses a power converter, including main part upper cover and the main part lower cover that mutually supports the setting, the main part upper cover cooperatees with the main part lower cover and forms the inside shell that has the holding chamber, a plurality of socket holes have been seted up to main part upper cover up end, first socket group has been seted up to the terminal surface under the main part lower cover, second socket group and third socket group, it is equipped with movable separation blade to rotate bottom the holding intracavity, movable separation blade locates the rotating sleeve on the holding intracavity bottom including rotating, locate the first activity arm that rotates the sleeve side and extend to arbitrary socket side in the first socket group, locate the second activity arm that rotates the sleeve side and extend to arbitrary socket side in the second socket group, and locate the third activity arm that rotates the sleeve side and extend to arbitrary socket side in the third socket group. The utility model discloses a power converter when using, can realize that the purpose of participating in only using a specification at the same time, the safety in utilization is high.

Description

a power converter

technical field

The utility model relates to a 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 the existing power converters, in order to improve the versatility of the converter, some power converters are provided with pins of various specifications. When in use, it is only necessary to push out the required pins and insert them into the target sockets. In traditional power converters, there is no safety protection structure for these pins. For example, when the user pushes out one of the pins, the adjacent pins may also be pushed out due to improper operation, resulting in the failure of the power converter. Target sockets may even put users at risk of electric shock, and the safety of using electricity is low.

At the same time, in order to serve as a multi-country plug converter, it is necessary to set up multiple sets of plug components, and at the same time control the extension and retraction of the plug components through the buttons, and the up and down movement of the buttons requires sliding holes on the shell for the buttons to move up and down. Sliding, however, when the button is moved up or down, there will inevitably be some sliding holes not covered, so that the internal structure of the converter can be seen from the sliding hole, which not only exposes the internal structure, but even causes children to play with the power converter. There will be electric shock phenomenon, and there will be moisture and dust and other sundries entering the phenomenon, which will not play the role of dustproof and waterproof.

Utility model content

In view of the above deficiencies, the purpose of this utility model is to provide a power converter, which can achieve the purpose of using only one specification pin at the same time, and improve the safety of use; at the same time, it can not only prevent the internal structure of the shell from being exposed, but also prevent children from Electric shock caused by the power converter, and it can prevent moisture, dust and other sundries from entering the casing, so as to achieve the purpose of dustproof and waterproof.

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

A power converter, comprising a main body upper cover and a main body lower cover cooperating with each other, the main body upper cover and the main body lower cover cooperate to form a housing with an accommodating cavity inside, and the upper end surface of the main body upper cover is provided with several The socket hole forms a socket panel. At least three socket groups are provided on the lower surface of the lower cover of the main body. The three socket groups are respectively a first socket group, a second socket group and a third socket group. It is characterized in that, A movable blocking piece is rotatably arranged at the bottom of the accommodating chamber, and the movable blocking piece includes a rotating sleeve rotatably arranged on the bottom of the accommodating chamber, and at least three movable arms arranged on the sides of the rotating sleeve, The three movable arms are respectively a first movable arm extending to the side of any socket in the first socket group, and a first movable arm arranged on the side of the rotating sleeve and extending to the side of any socket in the second socket group. Two movable blocking arms, and a third movable blocking arm arranged on the side of the rotating sleeve and extending to the side of any socket in the third socket group.

As a further improvement of the present utility model, there is a first guide slope at the end of the first movable arm, a second guide slope at the end of the second movable arm, and a second guide slope at the end of the third movable arm. The end side has a third guiding slope.

As a further improvement of the present utility model, at least three plug assemblies are provided in the accommodating cavity, and the three plug assemblies are respectively a first plug assembly, a second plug assembly, and a plug assembly located between the first plug assembly and the second plug assembly. A third plug assembly between the two plug assemblies, wherein the first plug assembly includes a first stopper and a first button arranged on the end face of the first stopper and passing through the outer side of the shell, the first button The second plug assembly includes a second stopper, and a second button arranged on the end surface of the second stopper and passing through the outer side of the casing, and the third plug assembly includes a third button passing through the outer side of the casing; On one side of the casing, there are a first slide hole for the first key to pass through and move up and down, a second slide hole for the second key to pass through and move up and down, and a second slide hole for the third key to pass through and move up and down A third sliding hole; on the inner wall of the housing and located on the inner side of the first sliding hole, a first slider is inserted up and down for the passage of the first button, on the inner wall of the housing and located in the second sliding hole A second slider for the second button to pass through is inserted up and down on the inner side, and a third stopper whose upper end passes through the third plug assembly is provided at the bottom of the accommodating cavity, and the third stopper is located at The inner side of the third sliding hole; when the first key slides up and down along the first sliding hole, the first sliding hole is blocked by the cooperation of the first stopper and the first sliding block; When the hole slides up and down, the second slide hole is blocked by the cooperation of the second block and the second slide block; when the third button slides up and down along the third slide hole, the third slide hole is blocked by the third block.

As a further improvement of the utility model, the first plug assembly also includes a first plug lower substrate, a first plug upper substrate arranged on the upper end surface of the first plug lower substrate, and a first plug lower substrate arranged on the lower end of the first plug lower substrate. And move up and down on the three first pins in the first socket group, wherein the first stopper is set on the ends of the first plug lower base plate and the first plug upper base plate, and the first slider is provided with A first driving sliding hole for the first button to pass through; the two sides of the lower substrate of the first plug are respectively extended upwards with a first hook, and the upper end of the first hook is fastened on the upper substrate of the first plug ; A first chute for inserting the first block and the first slider is provided on the inner wall of the housing.

As a further improvement of the present utility model, the second plug assembly also includes a second plug lower substrate, a second plug upper substrate arranged on the upper end surface of the second plug lower substrate, and a second plug lower substrate arranged on the lower end of the second plug lower substrate. And move up and down on the three second pins in the second socket group, wherein, the second stopper is set on the end of the second plug lower substrate and the second plug upper substrate, and the second slider is provided with a A second driving sliding hole through which the second button passes; a second hook is respectively extended upwards on both sides of the lower substrate of the second plug, and the upper end of the second hook is buckled on the upper substrate of the second plug; A second chute for inserting the second block and the second sliding block is arranged on the inner wall of the housing.

As a further improvement of the present utility model, the third plug assembly also includes a third plug lower substrate, a third plug upper substrate arranged on the upper end surface of the third plug lower substrate, and a third plug lower substrate arranged on the lower end of the third plug lower substrate. And move up and down on the three third pins in the third socket group, wherein, a slot for inserting the third block is provided at the bottom of the accommodating cavity, and a slot for the third block is opened on the third plug assembly. A through hole through which the three stoppers pass; a third hook is respectively extended upward on both sides of the lower base plate of the third plug, and the upper end of the third hook is buckled on the upper base plate of the third plug.

As a further improvement of the present utility model, a plug bracket is provided in the accommodating cavity and above the movable shutter, and on the plug bracket is provided upwards a A number of positioning columns.

As a further improvement of the utility model, the bottom of the lower cover of the main body is provided with a first socket, a second socket and a third socket distributed in a straight line, and a fourth socket is opened in front of the left side of the first socket. A fifth socket is provided in front of the right side of the first socket, a sixth socket is provided in the rear left side of the third socket, a seventh socket is provided in the rear right side of the third socket, and a sixth socket is provided behind the sixth socket. Eight sockets, a ninth socket is provided behind the seventh socket, wherein the third socket, the eighth socket and the ninth socket are combined to form the first socket group, the second socket, the fourth socket and the fifth socket The sockets are combined to form the second socket group, and the first socket, the sixth socket and the seventh socket are combined to form the third socket group.

As a further improvement of the present utility model, the end of the first movable arm extends to the side of the eighth socket, the end of the second movable arm extends to the side of the fourth socket, and the end of the third movable arm extends To the side of the sixth socket; the middle part of the first movable arm is bent to form a connecting arm connected to the side of the rotating sleeve and a movable arm connected to the end of the connecting arm, the connecting arm is located on the side of the sixth socket , the end of the movable arm is located on the side of the eighth socket, and there is a fourth guiding slope on the side of the connecting arm close to the sixth socket.

As a further improvement of the utility model, a socket bracket is arranged in the accommodating cavity above the first plug assembly, the second plug assembly and the third plug assembly, and a socket shrapnel group is inserted on the socket bracket. The socket shrapnel group includes a left socket shrapnel, a middle socket shrapnel and a right socket shrapnel, and two of the left socket shrapnel, the middle socket shrapnel and the right socket shrapnel are spaced apart from each other. At the same time, the left socket shrapnel, the middle socket shrapnel The shrapnel and the right socket shrapnel are matched with several socket holes respectively; a conductive sheet group is arranged at the bottom of the accommodating cavity, and the conductive sheet group includes a first conductive sheet, a second conductive sheet and a third conductive sheet, The first conductive piece is electrically connected to the left socket shrapnel, the second conductive piece is electrically connected to the middle socket shrapnel, and the third conductive piece is electrically connected to the right socket shrapnel; at the same time, at the upper end of the socket bracket and on the combined socket panel A protective door assembly is provided at the lower end, and the protective door assembly includes a first protective door and a second protective door; a circuit board and a self-recovery circuit board electrically connected to the socket shrapnel group and the conductive sheet group are arranged in the accommodating cavity. A fuse, the resettable fuse is arranged in a slot on one side of the inner wall of the housing.

The beneficial effects of the utility model are:

(1) Through the setting of the movable block, the first movable arm, the second movable arm and the third movable arm on the side move respectively in any socket in the first socket group and in the second socket group Any socket and the side of any socket in the third socket group, when the pins of one of the first plug assembly, the second plug assembly, and the third plug assembly are pushed down, the pins push one of the movable arm , so that the movable retainer rotates as a whole, the other two movable retainer arms will block all or part of the socket on the side, and the pin above the blocked socket cannot be moved down and passed out. Therefore, when in use, there is only one The standard pins can protrude from the lower surface of the lower cover of the main body, which can realize the purpose of using only one standard pin at the same time, and improve the safety of use;

(2) By adding a matching first stopper and first slider on the inner side of the first sliding hole of the first plug assembly, a second matching second stopper is added on the inner side of the second sliding hole of the second plug assembly. The stopper and the second slider, the third stopper is added on the inside of the third slide hole of the third plug assembly, in the process of sliding up and down the first button, the second button and the third button, the first slide hole, the second button and the third button slide up and down. The second sliding hole and the third sliding hole are always covered, and there is no internal structure exposed. Therefore, it can not only prevent the internal structure of the shell from being exposed, prevent children from playing with the power converter and cause electric shock, but also prevent moisture, The phenomenon that dust and other sundries enter the casing can achieve the purpose of dustproof and waterproof.

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 a part of structural representation of the utility model;

Fig. 3 is the structural representation of another part of the utility model;

Fig. 4 is a structural schematic diagram of the first plug assembly of the present utility model;

Fig. 5 is a schematic structural view of the second plug assembly of the present invention;

Fig. 6 is a schematic structural diagram of a third plug assembly of the present invention;

Fig. 7 is a schematic diagram of an internal structure of the lower cover of the main body of the present invention;

Fig. 8 is a schematic diagram of another internal structure of the lower cover of the main body of the present invention;

Fig. 9 is a schematic structural view of the bottom of the lower cover of the main body of the present invention;

Fig. 10 is another schematic diagram of the internal structure of the lower cover of the main body of the present invention;

Fig. 11 is a schematic structural view of the movable shutter of the present invention;

Fig. 12 is a structural schematic diagram of the protection door assembly of the present invention arranged on the socket bracket;

Fig. 13 is a schematic diagram of the structure of the socket shrapnel set arranged on the socket bracket of the present invention.

Detailed ways

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. 3, and Fig. 9, the utility model embodiment provides a kind of power converter, comprises a main body upper cover 11 and a main body lower cover 12 arranged mutually, the main body upper cover 11 and the main body lower cover 12 cooperate to form the shell 1 with an accommodating cavity inside. The upper end surface of the main body upper cover 11 is provided with a plurality of socket holes 111 to form a socket panel. At least three plug assemblies are arranged in the accommodating cavity. The three plugs The components are respectively a first plug assembly 2, a second plug assembly 3, and a third plug assembly 4 located between the first plug assembly 2 and the second plug assembly 3, and the lower end surface of the main body lower cover 12 is provided with at least Three socket groups, the three socket groups are respectively a first socket group 121 for the lower end of the first plug assembly 2 to move up and down, a second socket group 122 for the lower end of the second plug assembly 3 to move up and down, And a third socket group 123 for the lower end of the third plug assembly 4 to move up and down. The first plug assembly 2 includes a first block 21, and a first button 22 disposed on the end surface of the first block 21 and passing through the outer side of the shell 1. The second plug assembly 3 includes a second block block 31, and a second button 32 that is arranged on the end face of the second block 31 and passes through the outer side of the shell 1, and the third plug assembly 4 includes a third button 41 that goes out of the outer side of the shell 1; One side of the casing 1 is provided with a first sliding hole 13 for the first button 22 to pass through and move up and down, a second sliding hole 14 for the second button 32 to pass through and move up and down, and a third button 41 for passing through. A third sliding hole 15 that passes through and moves up and down; on the inner wall of the housing 1 and is positioned at the inner side of the first sliding hole 13, a first slider 5 is inserted up and down for the first button 22 to pass through. On the inner wall of the housing 1 and located on the inner side of the second sliding hole 14, a second slider 6 is inserted up and down for the second button 32 to pass through, and a third plug assembly is provided at the bottom of the accommodating cavity. 4, and the third stopper 7 is located on the inner side of the third sliding hole 15. In this embodiment, the third stopper 7 is a plastic sheet.

In this embodiment, when the first button 22 slides up and down along the first sliding hole 13, the first sliding hole 13 is blocked by the cooperation of the first stopper 21 and the first slider 5; When the second sliding hole 14 slides up and down, the second sliding hole 14 is blocked by the cooperation of the second block 32 and the second sliding block 6; when the third button 41 slides up and down along the third sliding hole 15, the third The sliding hole 15 is blocked by the third block 31 .

Specifically, when the first button 22 is pushed down to slide down along the first sliding hole 13, the first stopper 21 moves down, and the first stopper 21 will open most of the first sliding hole 13. Covered, and the upper part of the first sliding hole 13 is exposed, and because the first slider 5 moves down under the drive of the first button 22, the upper part of the first slider 5 blocks the exposed part of the first sliding hole 13 If the first sliding hole 13 is pressed, the entire first sliding hole 13 is covered, and no internal structure is exposed; when the first button 22 is pushed upward to slide upward along the first sliding hole 13, the first stopper 21 moves upward, and the The first block 21 blocks most of the openings of the first sliding hole 13, and exposes the lower part of the first sliding hole 13, and because the first slide block 5 moves up driven by the first key 22, the first The lower part of the slide block 5 covers the exposed part of the first slide hole 13, so that the entire first slide hole 13 is covered, and no internal structure is exposed. Similarly, when the second button 32 slides upwards and downwards, the entire second sliding hole 14 is also covered, and no internal structure is exposed. When the third button 41 is pushed to slide up and down along the third sliding hole 15, the third sliding hole 15 is always covered by the third stopper 31 due to the setting of the third stopper 31, and no internal structure is exposed.

As can be seen from the above, by adding the first stopper 21 and the first slider 5 on the inner side of the first sliding hole 13 of the first plug assembly 2, the first slider Hole 13 is covered all the time, and there is no internal structure exposure phenomenon; By adding the second stopper 32 and the second slide block 6 that match in the second sliding hole 14 inner side of the second plug assembly 3, in the second button 32 in the process of sliding up and down, the second slide hole 14 is always covered, and no internal structure is exposed; by adding a third block 31 inside the third slide hole 15 of the third plug assembly 4, in the third During the sliding process of the button 41 up and down, the third sliding hole 15 is always covered, and no inner structure is exposed.

Therefore, it can not only prevent the internal structure of the casing 1 from being exposed, prevent children from playing with the power converter and cause electric shock, but also prevent moisture, dust and other sundries from entering the casing 1, and finally achieve the purpose of dustproof and waterproof.

As shown in Figure 4, the first plug assembly 2 also includes a first plug lower substrate 23, a first plug upper substrate 24 arranged on the upper end surface of the first plug lower substrate 23, and a first plug upper substrate 24 arranged under the first plug. The lower end of the base plate 23 moves up and down on the three first pins 25 in the first socket group 121, wherein the first stopper 21 is arranged at the ends of the first plug lower base plate 23 and the first plug upper base plate 24. The first sliding block 5 is provided with a first driving sliding hole 51 through which the first button 22 passes; the two sides of the lower base plate 23 of the first plug are respectively extended upwards to provide a first hook 231, and the first hook 231 The upper end of a hook 231 is buckled on the upper base plate 24 of the first plug; a first sliding slot 16 for inserting the first block 21 and the first sliding block 5 is provided on the inner wall of the housing 1 .

As shown in Figure 5, the second plug assembly 3 also includes a second plug lower substrate 33, a second plug upper substrate 34 arranged on the upper end surface of the second plug lower substrate 33, and a second plug upper substrate 34 arranged under the second plug. The lower end of the base plate 33 moves up and down on the three second pins 35 in the second socket group 122, wherein the second stopper 32 is arranged at the ends of the second plug lower base plate 33 and the second plug upper base plate 34. The second slider 6 is provided with a second driving sliding hole 61 for the second button 22 to pass through; the two sides of the second plug lower base plate 33 respectively extend upwards to provide a second hook 331, and the second The upper end of the hook 331 is engaged with the upper base plate 34 of the second plug; a second sliding slot 17 for inserting the second block 32 and the second sliding block 6 is provided on the inner wall of the housing 1 .

As shown in Figure 6, the third plug assembly 4 also includes a third plug lower substrate 42, a third plug upper substrate 43 arranged on the upper end surface of the third plug lower substrate 42, and a third plug upper substrate 43 arranged under the third plug. The lower end of the base plate 42 moves up and down on the three third pins 44 in the third socket group 123, wherein a slot 18 for inserting the third block 7 is arranged at the bottom of the accommodating cavity, and in the third The plug assembly 4 is provided with a perforation 45 through which the third stopper 7 passes; the two sides of the lower base plate 42 of the third plug are respectively extended upwards and provided with a third hook 421, and the upper end of the third hook 421 is buckled. fit on the upper substrate 43 of the third plug.

As shown in FIG. 7 , a plug bracket 8 is arranged at the bottom of the accommodating cavity, and on the plug bracket 8 , several plugs passing through the first plug assembly 2 , the second plug assembly 3 and the third plug assembly 4 are arranged upwards. Positioning column 81.

As shown in Fig. 8 and Fig. 11, at the bottom of the accommodating cavity and at the lower end of the plug bracket 8, a movable stopper 9 is rotated, and the movable stopper 9 includes a rotating sleeve rotatably arranged on the bottom of the accommodating cavity. Sleeve 91, and at least three movable arms that are arranged on the side of rotating sleeve 91, the three movable arms are respectively a first movable arm 92 that extends to any socket side in the first socket group 121, and is arranged on Rotate sleeve 91 side and extend to a second movable arm 93 of any socket side in the second socket group 122, and be arranged on the rotating sleeve 91 side and extend to any socket in the third socket group 123 A third movable arm 94 on the side, wherein, there is a first guide inclined surface 921 at the end of the first movable arm 92, and a second guide inclined surface 931 at the end of the second movable arm 93. The end side of the third movable arm 94 has a third guiding slope 941 . Through the setting of movable catch 9, the first movable catch arm 92 on its side, the second movable catch arm 93 and the third movable catch arm 94 move respectively in any socket and the second socket in the first socket group 121. When the side of any socket in the group 122 and any socket in the third socket group 123 pushes down the pins of one of the first plug assembly 2, the second plug assembly 3, and the third plug assembly 4, The pin pushes one of the movable retaining arms to make the movable retainer 9 rotate as a whole, and then the other two movable retaining arms block all or part of the sockets on the side, and the pins above the blocked sockets cannot be moved down and passed through. , when in use, only one specification pin can protrude from the lower surface of the lower cover of the main body, which can realize the purpose of using only one specification pin at the same time, and improve the safety of use. And by the guide slope on the first movable arm 92, the second movable arm 93 and the 3rd movable arm 94, when the pin moves down and promotes the movable arm, the guide slope plays a guiding role to guide the movable arm to rotate , so that the movable catch 9 rotates as a whole to block other sockets.

As shown in Figure 9, the bottom of the main body lower cover 12 is provided with a first socket 1231, a second socket 1221 and a third socket 1211 distributed in a straight line. Socket 1222, a fifth socket 1223 is provided in front of the right side of the first socket 1231, a sixth socket 1232 is provided in the rear left side of the third socket 1211, and a seventh socket 1233 is provided in the rear right side of the third socket 1211 An eighth socket 1212 is provided behind the sixth socket 1232, and a ninth socket 1213 is provided behind the seventh socket 1233, wherein the third socket 1211, the eighth socket 1212 and the ninth socket 1213 are combined to form a The first socket group 121, the second socket 1221, the fourth socket 1222 and the fifth socket 1223 are combined to form the second socket group 122, the first socket 1231, the sixth socket 1232 and the seventh socket 1233 are combined The third socket group 123 is formed.

As shown in Figure 10, the end of the first movable arm 92 extends to the side of the eighth socket 1212, the end of the second movable arm 93 extends to the side of the fourth socket 1222, and the third movable arm 94 The end extends to the side of the sixth socket 1232; the middle part of the first movable arm 92 is bent to form a connecting arm 922 connected to the side of the rotating sleeve 91, and a movable arm 923 connected to the end of the connecting arm 922, The connecting arm 922 is located on the side of the sixth socket 1232 , the end of the movable arm 923 is located on the side of the eighth socket 1212 , and there is a fourth guiding slope 9221 on the side of the connecting arm 922 close to the sixth socket 1232 .

As shown in Fig. 12 and Fig. 13, a socket bracket 10 is arranged in the accommodating cavity above the first plug assembly 2, the second plug assembly 3 and the third plug assembly 4, on which the socket bracket 10 is inserted. There is a socket shrapnel group 20, the socket shrapnel group 20 includes a left socket shrapnel 201, a middle socket shrapnel 202 and a right socket shrapnel 203, and two of the left socket shrapnel 201, the middle socket shrapnel 202 and the right socket shrapnel 203 are two The two are spaced apart from each other. At the same time, the left socket shrapnel 201, the middle socket shrapnel 202 and the right socket shrapnel 203 are respectively matched with a plurality of socket holes 111; 30 includes a first conductive sheet 301, a second conductive sheet 302 and a third conductive sheet 303, the first conductive sheet 301 is electrically connected to the left socket elastic sheet 201, the second conductive sheet 302 is electrically connected to the middle socket elastic sheet 202, The third conductive sheet 303 is electrically connected to the right socket spring 203; at the same time, a protective door assembly 40 is provided on the upper end of the socket bracket 10 and at the lower end of the combined socket panel, and the protective door assembly 40 includes a first protective door 401 and a second protective door assembly. Two protective doors 402 .

As shown in Figure 2, a circuit board 50 and a self-recovery fuse 60 electrically connected to the socket shrapnel group 20 and the conductive sheet group 30 are arranged in the accommodating cavity, and the self-recovery fuse 60 is arranged on the inner wall of the housing 1 One side slot 19 inside.

The working principle of the utility model is:

When the first button 22 is pushed downwards to drive the three first pins 25 to move downwards and pass through the first socket group 121, the first block 21 and the first slider 5 will block the first sliding hole 13, and at the same time, the three pins will One of the first pins 25 is inserted into the eighth socket 1212, and then a force is applied to the first guide slope 921 of the first movable arm 92, so that the first movable arm 92 drives the movable block 9 to rotate clockwise as a whole, Then the second movable arm 93 blocks the fourth socket 1222 to prevent the second plug assembly 3 from moving down, and at the same time, the third movable arm 94 blocks the sixth socket 1232 to prevent the third plug assembly 4 from moving down , to achieve the purpose of using only one specification pin at the same time, and improve the safety of use.

When the second button 32 is pushed downwards to drive the three second pins 35 to move downwards and pass through the second socket group 122, the second stopper 32 and the second slider 6 block the second sliding hole 14, and at the same time, the three pins One of the second pins 35 is inserted into the fourth socket 1222, and then a force is applied to the second guide slope 931 of the second movable arm 93, so that the second movable arm 93 drives the movable block 9 to rotate counterclockwise as a whole, Then the first movable arm 92 blocks the eighth socket 1212 to prevent the first plug assembly 2 from moving down. At the same time, the first movable arm 92 and the third movable arm 94 block the sixth socket 1232 to prevent The third plug assembly 4 is moved down to achieve the purpose of using only one specification of pins at the same time and improve the safety of use.

When the third button 41 is pushed down to drive the three third prongs 44 to move downwards and pass through the third socket 123, the third block 31 blocks the third sliding hole 15, and at the same time, one of the three third prongs 44 A pin is inserted into the sixth socket 1232, then the pin is positioned between the first movable arm 92 and the third movable arm 94, so that the first movable arm 92 and the third movable arm 94 cannot swing. The movable arm 92 blocks the eighth socket 1212, and the second movable arm 93 blocks the fourth socket 1222 to prevent the first plug assembly 2 and the second plug assembly 3 from moving down, so that only one type of pin can be used at the same time The purpose is to improve the safety of use.

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. Therefore, other structures obtained by adopting the same or similar technical characteristics as the above-mentioned embodiments of the present utility model can be obtained. Within the protection scope of the present utility model.

Claims (12)

1. a kind of power supply changeover device, including a main body upper cover of the setting that cooperates and a main body lower cover, the main body upper cover and master Body lower cover matches to form the internal shell with an accommodating cavity, which offers several socket apertures, is formed Socket panel, the main body lower cover lower face offer at least three socket groups, three socket groups be respectively one first socket group, One second socket group and a third socket group, which is characterized in that lower rotation is provided with an active blade in the accommodating cavity, The active blade includes the rotational sleeve being rotatably dispose in accommodating cavity on bottom and is set to rotational sleeve side at least Three lever arms, three lever arms be respectively the one first movable blocking arm for extending to any socket side in the first socket group, It is set to rotational sleeve side and extends to one second movable blocking arm of any socket side in the second socket group and be set to and turn Moving sleeve side and the third activity blocking arm for extending to any socket side in third socket group.

2. power supply changeover device according to claim 1, which is characterized in that have one the in the described first movable blocking arm end One guiding surface has one second guiding surface, in the third activity blocking arm end side in the described second movable blocking arm end Side has a third guiding surface.

3. power supply changeover device according to claim 1 or 2, which is characterized in that be provided with one first in the accommodating cavity Plug-assembly, first plug-assembly include one first block and are set on the first block end face and are pierced by outer side side One first button, offer and passed through for the first button and one first up and down slide opening on the shell one side, at this It is inserted with one first sliding block passed through for the first button on outer casing inner wall and positioned at the first slide opening inner side edge is up and down.

4. power supply changeover device according to claim 3, which is characterized in that further include that one second be set in accommodating cavity inserts Head assembly, second plug-assembly include one second block and are set on the second block end face and are pierced by outer side side One second button is offered on the shell one side and is passed through for the second button and one second up and down slide opening, outer at this It is inserted with one second sliding block passed through for the second button on shell inner wall and positioned at the second slide opening inner side edge is up and down.

5. power supply changeover device according to claim 4, which is characterized in that further include being set in accommodating cavity and being located at first A third plug-assembly between plug-assembly and the second plug-assembly, the third plug-assembly include being pierced by outer side side One third button is offered on the shell one side and is passed through for third button and a up and down third slide opening, in the appearance It sets intracavitary bottom and is provided with the third block that third plug-assembly is run through in upper end, and the third block is located on the inside of third slide opening Side.

6. power supply changeover device according to claim 3, which is characterized in that first plug-assembly further includes one first slotting Head lower substrate, the one first plug upper substrate that is set on the first plug lower substrate upper surface and it is set to base under the first plug Plate lower end and up and down three first pins in the first socket group, wherein first block is set to the first plug The end of lower substrate and the first plug upper substrate offers one first passed through for the first button on first sliding block and drives Slide opening；The first plug lower substrate two sides upwardly extend respectively is provided with one first grab, and the first grab upper end is detained Together on the first plug upper substrate；It is provided on the outer casing inner wall and is slided for the one first of the first block and the insertion of the first sliding block Slot.

7. power supply changeover device according to claim 4, which is characterized in that second plug-assembly further includes one second slotting Head lower substrate, the one second plug upper substrate that is set on the second plug lower substrate upper surface and it is set to base under the second plug Plate lower end and up and down three second pins in the second socket group, wherein second block is set to the second plug Lower substrate and the second plug upper substrate end offer one second passed through for the second button on second sliding block and drive cunning Hole；The second plug lower substrate two sides upwardly extend respectively is provided with one second grab, and the second grab upper end fastens In on the second plug upper substrate；It is provided on the outer casing inner wall and is slided for the one second of the second block and the insertion of the second sliding block Slot.

8. power supply changeover device according to claim 5, which is characterized in that the third plug-assembly further includes that a third is inserted Head lower substrate, the third plug upper substrate that is set on third plug lower substrate upper surface and it is set to base under third plug Plate lower end and up and down three third pins in third socket group, wherein bottom is provided with confession in the accommodating cavity The slot that third block is inserted into, offers the perforation passed through for third block on the third plug-assembly；Described Three plug lower substrate two sides upwardly extend respectively is provided with a third grab, and the third grab upper end is fastened on third plug On upper substrate.

9. power supply changeover device according to claim 5, which is characterized in that in the accommodating cavity and on active blade Side is provided with a plug bracket, has been set up on the plug bracket across the first plug-assembly, the second plug-assembly and the Several positioning columns of three plug-assemblies.

10. power supply changeover device according to claim 1, which is characterized in that main body lower cover bottom offers linearly One first socket, one second socket and a third socket for distribution, front offers one the 4th socket on the left of first socket, Front offers one the 5th socket on the right side of first socket, and rear offers one the 6th socket on the left of the third socket, Rear offers one the 7th socket on the right side of the third socket, one the 8th socket is offered at the 6th socket rear, the 7th Socket rear offers one the 9th socket, wherein the third socket, the 8th socket are combined composition described first with the 9th socket Socket group, second socket, the 4th socket are combined with the 5th socket constitutes the second socket group, the first socket, the 6th Socket is combined with the 7th socket and constitutes the third socket group.

11. power supply changeover device according to claim 10, which is characterized in that the first movable blocking arm end extends to the Eight socket sides, the second movable blocking arm end extend to the 4th socket side, which extends to the 6th Socket side；It is bent to form the linking arm for being connected to rotational sleeve side in the middle part of the first movable blocking arm and is connected to connection One lever arm of arm end, the linking arm are located at the 6th socket side, which is located at the 8th socket side, in the company The side for connecing nearly 6th socket of arm rest has one the 4th guiding surface.

12. power supply changeover device according to claim 5, which is characterized in that in the accommodating cavity and be located at the first plug It is provided with a socket support above component, the second plug-assembly and third plug-assembly, one is inserted on the socket support and is inserted Seat shrapnel group, the socket shrapnel group include socket shrapnel and a right socket shrapnel in a left socket shrapnel, one, and the left socket bullet Piece, middle socket shrapnel are spaced from each other two-by-two with right socket shrapnel three, meanwhile, the left socket shrapnel, middle socket shrapnel with Right socket shrapnel matches setting with several socket apertures respectively；Bottom is provided with a conductive sheet set in the accommodating cavity, the conduction Piece group includes one first conductive sheet, one second conductive sheet and a third conductive sheet, which is electrically connected with left socket shrapnel It connects, which is electrically connected with middle socket shrapnel, which is electrically connected with right socket shrapnel；Meanwhile described Socket support upper end and modular jack panel lower end is provided with a protection door component, which includes first protecting Protect door and the second protection door；It is provided with a circuit board in the accommodating cavity and is respectively electrically connected to socket shrapnel group and conduction One self-recovery fuse of piece group, the self-recovery fuse are set in the side slot on outer casing inner wall.