CN108023203A - A kind of power supply changeover device - Google Patents

Abstract

The invention discloses a kind of power supply changeover device, including the main body upper cover set and the main body lower cover of cooperating, main body upper cover is engaged to form the internal shell with accommodating cavity with main body lower cover, main body upper cover upper surface offers some socket apertures, main body lower cover lower face offers the first socket group, second socket group and the 3rd socket group, lower rotation is equipped with active blade in accommodating cavity, active blade includes rotating the rotational sleeve being arranged in accommodating cavity on bottom, arranged on rotational sleeve side and extend to the first movable blocking arm of any socket side in the first socket group, arranged on rotational sleeve side and extend to the second movable blocking arm of any socket side in the second socket group, and arranged on rotational sleeve side and extend to the 3rd movable blocking arm of any socket side in the 3rd socket group.Power supply changeover device disclosed by the invention, it is safe to use when in use, it can be achieved that the same time only uses a kind of purpose of specification pin.

Description

A kind of power supply changeover device

Technical field

The present invention relates to a kind of power supply changeover device.

Background technology

, cannot be general because the plugs and sockets specification of various countries is different, it is unmatched slotting if desired to insert a plug into specification In seat, then need to pass through power supply changeover device.Power supply changeover device is a kind of adapter tool, in use, power supply changeover device is inserted into target Socket, target plug then is inserted into socket aperture matching on power supply changeover device can realize conversion.Power supply is changed The appearance of device improve people go out life convenience, particularly transnational trip when, without the electronic equipment for worrying to carry Trouble caused by plug is mismatched with local power outlet.

And in existing power supply changeover device, in order to improve the wide usage of converter, it is provided with some power supply changeover devices The pin of plurality of specifications, when in use, target socket is inserted into as long as the pin of needs is released.And traditional power supply turns In parallel operation, do not have safety protection structure for these pins, for example, when user releases the pin of one of specification, It may also be released due to misoperation, while the pin closed on, cause power supply changeover device to be inserted not into target socket, or even can allow There is the risk got an electric shock in user, electrical safety is relatively low.

Meanwhile in order to meet converter as multinational plug, it is necessary to set multigroup plug-assembly, while by button come The stretching and retraction of controller plug component, button move up and down action, it is necessary to which to open up slide opening on the shell upper for button Lower slider, however, when button moves up or moves down, certainly will have part slide opening and not be blocked, turn so as to see from slide opening The internal structure of parallel operation, not only exposes internal structure, or even electric shock phenomenon can occurs because child plays with power supply changeover device, and And the phenomenon that moisture enters with dust and other impurities occurs, do not have the effect of dustproof and waterproof.

The content of the invention

For above-mentioned deficiency, it is an object of the invention to provide a kind of power supply changeover device, it can be achieved that the same time only uses A kind of purpose of specification pin, improves safety in utilization；Meanwhile can not only prevent the exposed of enclosure structure, prevent because small Child plays with power supply changeover device and electric shock phenomenon occurs, and can prevent moisture, dust and other impurities enter shell in phenomenon, It can reach the purpose of dustproof and waterproof.

The present invention is that technical solution is used by reaching above-mentioned purpose：

A kind of power supply changeover device, includes a main body upper cover and the main body lower cover set that cooperate, the main body upper cover with Main body lower cover is engaged to form the internal shell with an accommodating cavity, which offers some socket apertures, shape Into socket panel, which offers at least three socket groups, which is respectively one first socket Group, one second socket group and one the 3rd socket group, it is characterised in that lower rotation is provided with an active catch in the accommodating cavity Piece, the active blade include the rotational sleeve being rotatably dispose in accommodating cavity on bottom and are arranged at rotational sleeve side At least three lever arms, three lever arms are respectively one first active catch for extending to any socket side in the first socket group Arm, the one second movable blocking arm for being arranged at rotational sleeve side and extending to any socket side in the second socket group and setting In rotational sleeve side and extend to one the 3rd movable blocking arm of any socket side in the 3rd socket group.

As a further improvement on the present invention, there is one first guiding surface in the described first movable blocking arm end, in institute Stating the second movable blocking arm end has one second guiding surface, has one the 3rd to be oriented on the described 3rd movable blocking arm end side side Inclined-plane.

As a further improvement on the present invention, at least three plug-assemblies are provided with the accommodating cavity, this three are inserted Head assembly be respectively one first plug-assembly, one second plug-assembly and positioned at the first plug-assembly and the second plug-assembly it Between one the 3rd plug-assembly, wherein, first plug-assembly include one first block and be arranged on the first block end face and One first button on outer side side is pierced by, which includes one second block and be arranged at the second block end face Above and one second button on outer side side is pierced by, the 3rd plug-assembly includes one the 3rd button for being pierced by outer side side； Offered on the shell one side for the first button pass through and one first up and down slide opening, for the second button pass through and on Lower one second movable slide opening and passed through and one the 3rd up and down slide opening for the 3rd button；On the outer casing inner wall and position One first sliding block that is passed through for the first button is inserted with the first slide opening inner side edge is up and down, on the outer casing inner wall and is located at Second slide opening inner side edge is up and down to be inserted with one second sliding block passed through for the second button, and bottom is provided with the accommodating cavity A third gear block of the 3rd plug-assembly is run through in upper end, and the third gear block is located at the 3rd slide opening inner side edge；On the first button edge When the first slide opening and sliding up and down, the first slide opening is engaged with the first sliding block by the first block and sheltered from；The second button along When second slide opening slides up and down, the second slide opening is engaged with the second sliding block by the second block and sheltered from；In the 3rd button along When three slide openings slide up and down, the 3rd slide opening is sheltered from by third gear block.

As a further improvement on the present invention, first plug-assembly further includes one first plug infrabasal plate, is arranged at One first plug upper substrate on first plug infrabasal plate upper surface and it is arranged at the first plug infrabasal plate lower end and up and down Three first pins in the first socket group, wherein, first block is arranged at the first plug infrabasal plate and the first plug The end of upper substrate, one first passed through for the first button is offered on first sliding block and drives slide opening；Described first inserts Head infrabasal plate two sides upwardly extend respectively is provided with one first grab, and the first grab upper end is fastened on base on the first plug On plate；The first sliding groove for the first block and the insertion of the first sliding block is provided with the outer casing inner wall.

As a further improvement on the present invention, second plug-assembly further includes one second plug infrabasal plate, is arranged at One second plug upper substrate on second plug infrabasal plate upper surface and it is arranged at the second plug infrabasal plate lower end and up and down Three second pins in the second socket group, wherein, second block is arranged at the second plug infrabasal plate and the second plug Upper substrate end, one second passed through for the second button is offered on second sliding block and drives slide opening；Second plug Infrabasal plate two sides upwardly extend respectively is provided with one second grab, and the second grab upper end is fastened on the second plug upper substrate On；One second sliding slot for the second block and the insertion of the second sliding block is provided with the outer casing inner wall.

As a further improvement on the present invention, the 3rd plug-assembly further includes one the 3rd plug infrabasal plate, is arranged at One the 3rd plug upper substrate on 3rd plug infrabasal plate upper surface and it is arranged at the 3rd plug infrabasal plate lower end and up and down Three the 3rd pins in the 3rd socket group, wherein, bottom is provided with one for the insertion of third gear block in the accommodating cavity Slot, offers the perforation passed through for third gear block on the 3rd plug-assembly；The 3rd plug infrabasal plate both sides Side upwardly extends respectively is provided with one the 3rd grab, and the 3rd grab upper end is fastened on the 3rd plug upper substrate.

As a further improvement on the present invention, it is provided with a plug branch in the accommodating cavity and above active blade Frame, sets up some with the 3rd plug-assembly through the first plug-assembly, the second plug-assembly on the plug bracket Positioning column.

As a further improvement on the present invention, the main body lower cover bottom offer linear distributing one first socket, One second socket and one the 3rd socket, front offers one the 4th socket on the left of first socket, on the right side of first socket Front offers one the 5th socket, and rear offers one the 6th socket on the left of the 3rd socket, on the right side of the 3rd socket after Side offers one the 7th socket, offers one the 8th socket at the 6th socket rear, one is offered at the 7th socket rear 9th socket, wherein, the 3rd socket, the 8th socket are combined with the 9th socket forms the first socket group, this second is inserted Mouth, the 4th socket are combined with the 5th socket forms the second socket group, first socket, the 6th socket and the 7th socket phase It is bonded the 3rd socket group.

As a further improvement on the present invention, the described first movable blocking arm end extends to the 8th socket side, this second Movable blocking arm end extends to the 4th socket side, and the 3rd movable blocking arm end extends to the 6th socket side；First work The linking arm for being connected to rotational sleeve side and the lever arm for being connected to linking arm end are bent to form in the middle part of dynamic blocking arm, The linking arm is located at the 6th socket side, which is located at the 8th socket side, in the linking arm close to the 6th socket Side there is one the 4th guiding surface.

As a further improvement on the present invention, in the accommodating cavity and positioned at the first plug-assembly, the second plug-assembly With being provided with a socket support above the 3rd plug-assembly, a socket shrapnel group is inserted with the socket support, the socket bullet Piece group includes socket shrapnel and a right socket shrapnel in a left socket shrapnel, one, and the left socket shrapnel, middle socket shrapnel and the right side Be spaced from each other two-by-two in socket shrapnel three, meanwhile, if the left socket shrapnel, middle socket shrapnel and right socket shrapnel respectively with The matching of stem socket hole is set；Bottom is provided with a conductive sheet set in the accommodating cavity, and it is conductive which includes one first Piece, one second conductive sheet and one the 3rd conductive sheet, first conductive sheet are electrically connected with left socket shrapnel, and second conductive sheet is with Socket shrapnel is electrically connected, and the 3rd conductive sheet is electrically connected with right socket shrapnel；Meanwhile in the socket support upper end and it is located at group Box-like socket panel lower end is provided with a protection door component, which includes the first protection door and the second protection door； A circuit board is provided with the accommodating cavity and is respectively electrically connected to the self- recoverage insurance of socket shrapnel group and conductive sheet set Silk, the resettable fuse are arranged in the side slot on outer casing inner wall.

Beneficial effects of the present invention are：

(1) by the setting of active blade, by the first movable blocking arm on its side, the second movable blocking arm and the 3rd activity Blocking arm is active in any socket in the first socket group respectively, any socket in any socket and the 3rd socket group in the second socket group Side, when the pin for pushing down on the one of which part in the first plug-assembly, the second plug-assembly, the 3rd plug-assembly When, pin promotes wherein one movable blocking arm, makes active blade unitary rotation, then two other movable blocking arm is by the socket on side Completely or partially block, then can not move down and be pierced by positioned at the pin being blocked above socket, it is therefore, when in use, only a kind of Specification pin can protrude out main body lower cover lower surface, it can be achieved that the same time only uses a kind of purpose of specification pin, and raising makes Use security；

(2) by adding matched first block and the first sliding block in the first slide opening inner side edge of the first plug-assembly, Matched second block and the second sliding block are added in the second slide opening inner side edge of the second plug-assembly, in the 3rd plug-assembly 3rd slide opening inner side edge adds third gear block, during the first button, the second button and the 3rd button slide up and down, first Slide opening, the second slide opening and the 3rd slide opening are blocked all the time, and without internal structure exposing phenomenon, therefore, it can not only prevent shell Internal structure it is exposed, prevent electric shock phenomenon occur because child plays with power supply changeover device, and moisture, dust can be prevented Enter the phenomenon in shell Deng debris, can reach the purpose of dustproof and waterproof.

Above-mentioned is the general introduction of inventive technique scheme, below in conjunction with attached drawing and embodiment, the present invention is done further Explanation.

Brief description of the drawings

Fig. 1 is the overall structure diagram of the present invention；

Fig. 2 is a part of structure diagram of the present invention；

Fig. 3 is another part structure diagram of the present invention；

Fig. 4 is the structure diagram of the first plug-assembly of the invention；

Fig. 5 is the structure diagram of the second plug-assembly of the invention；

Fig. 6 is the structure diagram of the 3rd plug-assembly of the invention；

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

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

Fig. 9 is the structure diagram of main body lower cover bottom of the present invention；

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

Figure 11 is the structure diagram of active blade of the present invention；

Figure 12 is the structure diagram that protection door component of the present invention is arranged on socket support；

Figure 13 is the structure diagram that socket shrapnel group of the present invention is arranged on socket support.

Embodiment

Further to illustrate the present invention to reach the technological means and effect that predetermined purpose is taken, below in conjunction with attached drawing And preferred embodiment, the embodiment of the present invention is described in detail.

Fig. 1 to Fig. 3 and Fig. 9 is refer to, the embodiment of the present invention provides a kind of power supply changeover device, including cooperates and set A main body upper cover 11 and a main body lower cover 12, the main body upper cover 11 be engaged with main body lower cover 12 to be formed it is internal have it is one accommodating The shell 1 of chamber, 11 upper surface of main body upper cover offer some socket apertures 111, form socket panel, are set in the accommodating cavity There are at least three plug-assemblies, which is respectively one first plug-assembly 2, one second plug-assembly 3 and is located at One the 3rd plug-assembly 4 between first plug-assembly 2 and the second plug-assembly 3,12 lower face of main body lower cover offer to Few three socket groups, three socket groups are respectively to supply the up and down one first socket group being pierced by 2 lower end of the first plug-assembly 121st, for the up and down one second socket group 122 being pierced by 3 lower end of the second plug-assembly and on 4 lower end of the 3rd plug-assembly One the 3rd socket group 123 that lower activity is pierced by.First plug-assembly 2 includes one first block 21 and is arranged at the first block On 21 end faces and one first button 22 of 1 outer side edges of shell is pierced by, which includes one second block 31 and set It is placed on 31 end face of the second block and is pierced by one second button 32 of 1 outer side edges of shell, the 3rd plug-assembly 4 includes being pierced by outer One the 3rd button 41 of 1 outer side edges of shell；Offer and passed through for the first button 22 and up and down one on 1 one side of shell First slide opening 13, pass through for the second button 32 and one second up and down slide opening 14 and for the 3rd button 41 through and up and down One the 3rd slide opening 15 of activity；It is inserted with 1 inner wall of shell and positioned at 13 inner side edge of the first slide opening is up and down for first One first sliding block 5 that button 22 passes through, confession is inserted with 1 inner wall of shell and positioned at 14 inner side edge of the second slide opening is up and down One second sliding block 6 that second button 32 passes through, bottom is provided with upper end through the one the of the 3rd plug-assembly 4 in the accommodating cavity Three blocks 7, and the third gear block 7 is located at 15 inner side edge of the 3rd slide opening, in the present embodiment, which is sheet.

In the present embodiment, when the first button 22 is slided up and down along the first slide opening 13, the first slide opening 13 is by first gear Block 21 is engaged with the first sliding block 5 and shelters from；When the second button 32 is slided up and down along the second slide opening 14, the second slide opening 14 by Second block 32 is engaged with the second sliding block 6 and shelters from；When the 3rd button 41 is slided up and down along the 3rd slide opening 15, the 3rd slides Hole 15 is sheltered from by third gear block 31.

Specifically, push down on the first button 22 make its along the first slide opening 13 to glide when, the first block 21 with Moving down, then the first block 21 shelters from most of opening of the first slide opening 13, and exposes outside the upper part of the first slide opening 13, and Since drive of first sliding block 5 in the first button 22 moves down, then the top of the first sliding block 5 hides the exposed parts of the first slide opening 13 Block, then whole first slide opening 13 is blocked, no internal structure exposing phenomenon；When push up the first button 22 make its along When first slide opening 13 slides up, the first block 21 is with moving up, then the first block 21 hides most of opening of the first slide opening 13 Block, and expose outside the lower part of the first slide opening 13, and since drive of first sliding block 5 in the first button 22 moves up, then first The lower part of sliding block 5 shelters from the exposed parts of the first slide opening 13, then whole first slide opening 13 is blocked, outside no internal structure Reveal phenomenon.Similarly, when upwards with slide downward, whole second slide opening 14 is also blocked the second button 32, no internal structure Exposing phenomenon.When promoting the 3rd button 41 it is slided up and down along the 3rd slide opening 15, due to the setting of third gear block 31, the Three slide openings 15 are sheltered from by third gear block 31 all the time, no internal structure exposing phenomenon.

As known from the above, matched first block is added by 13 inner side edge of the first slide opening in the first plug-assembly 2 21 and first sliding block 5, during the first button 22 slides up and down, the first slide opening 13 is blocked all the time, and without internal junction Structure exposing phenomenon；By adding matched second block 32 and second in 14 inner side edge of the second slide opening of the second plug-assembly 3 Sliding block 6, during the second button 32 slides up and down, the second slide opening 14 is blocked all the time, and exposed existing without internal structure As；By adding third gear block 31 in 15 inner side edge of the 3rd slide opening of the 3rd plug-assembly 4, slided up and down in the 3rd button 41 During, the 3rd slide opening 15 is blocked all the time, and without internal structure exposing phenomenon.

Therefore, it can not only prevent the exposed of 1 internal structure of shell, prevent from getting an electric shock because child plays with power supply changeover device Phenomenon, and moisture, dust and other impurities can be prevented into the phenomenon in shell 1, it may ultimately reach the purpose of dustproof and waterproof.

As shown in figure 4, first plug-assembly 2 further includes one first plug infrabasal plate 23, is arranged under the first plug One first plug upper substrate 24 on 23 upper surface of substrate and it is arranged at 23 lower end of the first plug infrabasal plate and up and down in Three first pins 25 in one socket group 121, wherein, first block 21 is arranged at the first plug infrabasal plate 23 and first The end of plug upper substrate 24, one first passed through for the first button 22 is offered on first sliding block 5 and drives slide opening 51； First plug infrabasal plate, 23 two sides upwardly extend respectively is provided with one first grab 231, and 231 upper end of the first grab It is fastened on the first plug upper substrate 24；It is provided with what is be inserted into for the first block 21 and the first sliding block 5 on 1 inner wall of shell One the first sliding groove 16.

As shown in figure 5, second plug-assembly 3 further includes one second plug infrabasal plate 33, is arranged under the second plug One second plug upper substrate 34 on 33 upper surface of substrate and it is arranged at 33 lower end of the second plug infrabasal plate and up and down in Three second pins 35 in two socket groups 122, wherein, second block 32 is arranged at the second plug infrabasal plate 33 and second 34 end of plug upper substrate, one second passed through for the second button 22 is offered on second sliding block 6 and drives slide opening 61；Institute State 33 two sides of the second plug infrabasal plate and upwardly extend respectively and be provided with one second grab 331, and 331 upper end of the second grab is detained Together on the second plug upper substrate 34；One for the second block 32 and the insertion of the second sliding block 6 is provided with 1 inner wall of shell Second sliding slot 17.

As shown in fig. 6, the 3rd plug-assembly 4 further includes one the 3rd plug infrabasal plate 42, is arranged under the 3rd plug One the 3rd plug upper substrate 43 on 42 upper surface of substrate and it is arranged at 42 lower end of the 3rd plug infrabasal plate and up and down in Three the 3rd pins 44 in three socket groups 123, wherein, bottom is provided with what is be inserted into for third gear block 7 in the accommodating cavity One slot 18, offers the perforation 45 passed through for third gear block 7 on the 3rd plug-assembly 4；Under 3rd plug 42 two sides of substrate upwardly extend respectively is provided with one the 3rd grab 421, and 421 upper end of the 3rd grab is fastened on the 3rd plug On upper substrate 43.

As shown in fig. 7, bottom is provided with a plug bracket 8 in the accommodating cavity, set up on the plug bracket 8 There are some positioning columns 81 through the first plug-assembly 2, the second plug-assembly 3 and the 3rd plug-assembly 4.

As shown in Fig. 8 and Figure 11, bottom and rotated positioned at 8 lower end of plug bracket in the accommodating cavity and be provided with an activity Catch 9, the active blade 9 include the rotational sleeve 91 being rotatably dispose in accommodating cavity on bottom and are arranged at rotational sleeve At least three lever arms of 91 sides, three lever arms are respectively to extend to any socket side in the first socket group 121 One first movable blocking arm 92, be arranged at 91 side of rotational sleeve and extend to one of any socket side in the second socket group 122 Second movable blocking arm 93 and it is arranged at 91 side of rotational sleeve and extends to one of any socket side in the 3rd socket group 123 3rd movable blocking arm 94, wherein, there is one first guiding surface 921 in first movable 92 end of blocking arm, in second activity 93 end of blocking arm has one second guiding surface 931, has one the 3rd guiding surface in the 3rd movable 94 end side of blocking arm 941.By the setting of active blade 9, by the first 93 and the 3rd active catch of the movable movable blocking arm of blocking arm 92, second on its side Arm 94 is active in any socket in the first socket group 121, any socket and the 3rd socket group 123 in the second socket group 122 respectively In any socket side, when pushing down in the first plug-assembly 2, the second plug-assembly 3, the 3rd plug-assembly 4 wherein During the pin of one component, pin promotes wherein one movable blocking arm, makes 9 unitary rotation of active blade, then two other movable blocking arm Socket on side is completely or partially blocked, then can not move down and be pierced by positioned at the pin being blocked above socket, therefore, make Used time, only a kind of specification pin can protrude out main body lower cover lower surface, it can be achieved that the same time only uses a kind of specification pin Purpose, improve safety in utilization.And by the first movable movable blocking arm 93 of blocking arm 92, second and leading on the 3rd movable blocking arm 94 To inclined-plane, when pin moves down promotion activity blocking arm, guiding surface plays guiding role, and guiding activity blocking arm rotates, and makes activity 9 unitary rotation of catch, to block other sockets.

Inserted as shown in figure 9,12 bottom of main body lower cover offers linear distributing one first socket 1231, one second Mouthfuls 1221 with one the 3rd socket 1211, on the left of first socket 1231 in front of offer one the 4th socket 1222, this first The right side of socket 1231 front offers one the 5th socket 1223, and one the 6th socket is offered at 1211 left side rear of the 3rd socket 1232, one the 7th socket 1233 is offered at 1211 right side rear of the 3rd socket, is offered at 1232 rear of the 6th socket One the 8th socket 1212, one the 9th socket 1213 is offered at 1233 rear of the 7th socket, wherein, the 3rd socket 1211, 8th socket 1212 is combined with the 9th socket 1213 and forms the first socket group 121, second socket 1221, the 4th socket 1222 are combined with the 5th socket 1223 and form the second socket group 122, first socket 1231, the 6th socket 1232 and the Seven sockets 1233, which are combined, forms the 3rd socket group 123.

As shown in Figure 10, the described first movable 92 end of blocking arm extends to 1212 side of the 8th socket, second active catch 93 end of arm extends to 1222 side of the 4th socket, and the 3rd movable 94 end of blocking arm extends to 1232 side of the 6th socket；Should The first movable middle part of blocking arm 92 is bent to form the linking arm 922 for being connected to 91 side of rotational sleeve and is connected to linking arm 922 One lever arm 923 of end, the linking arm 922 are located at 1232 side of the 6th socket, which is located at the 8th socket 1212 sides, have one the 4th guiding surface 9221 in the linking arm 922 close to the side of the 6th socket 1232.

As shown in Figure 12 and Figure 13, in the accommodating cavity and positioned at the first plug-assembly 2, the second plug-assembly 3 and the The top of three plug-assembly 4 is provided with a socket support 10, and a socket shrapnel group 20, the socket are inserted with the socket support 10 Shrapnel group 20 includes 202 and one right socket shrapnel 203 of socket shrapnel in a left socket shrapnel 201, one, and the left socket shrapnel 201st, middle socket shrapnel 202 is with being spaced from each other two-by-two in right 203 three of socket shrapnel, meanwhile, the left socket shrapnel 201, in Socket shrapnel 202 matches setting with some socket apertures 111 respectively with right socket shrapnel 203；Bottom is set in the accommodating cavity There is a conductive sheet set 30, which includes one first conduction 301, one second conductive sheet 302 and one the 3rd conductive sheet 303, which is electrically connected with left socket shrapnel 201, which is electrically connected with middle socket shrapnel 202 Connect, the 3rd conductive sheet 303 is electrically connected with right socket shrapnel 203；Meanwhile in 10 upper end of socket support and it is located at combined type Socket panel lower end is provided with a protection door component 40, which includes the first protection door 401 and the second protection door 402。

As shown in Fig. 2, a circuit board 50 is provided with the accommodating cavity and is respectively electrically connected to socket shrapnel group 20 with leading One resettable fuse 60 of electric piece group 30, the resettable fuse 60 are arranged in the side slot 19 on 1 inner wall of shell.

The present invention operation principle be：

When pushing down on the first button 22, when driving three first pins 25 to move down to be pierced by the first socket group 121, the One block 21 shelters from the first slide opening 13 with the first sliding block 5, meanwhile, a wherein pin in three first pins 25 insertion the Eight sockets 1212, then apply active force to the first guiding surface 921 of the first movable blocking arm 92, drives the first movable blocking arm 92 Active blade 9 is overall to be rotated clockwise, then the second movable blocking arm 93 blocks the 4th socket 1222, to prevent the second plug-assembly 3 move down, meanwhile, the 3rd movable blocking arm 94 blocks the 6th socket 1232, to prevent the 3rd plug-assembly 4 from moving down, realizes same Time only uses a kind of purpose of specification pin, improves safety in utilization.

When pushing down on the second button 32, when driving three second pins 35 to move down to be pierced by the second socket group 122, the Two blocks 32 shelter from the second slide opening 14 with the second sliding block 6, meanwhile, a wherein pin in three second pins 35 insertion the Four sockets 1222, then apply active force to the second guiding surface 931 of the second movable blocking arm 93, drives the second movable blocking arm 93 Active blade 9 is overall to be rotated counterclockwise, then the first movable blocking arm 92 blocks the 8th socket 1212, to prevent the first plug-assembly 2 move down, meanwhile, the first movable blocking arm 92 blocks the 6th socket 1232 with the 3rd movable blocking arm 94, to prevent the 3rd plug group Part 4 moves down, and realizes that the same time only uses a kind of purpose of specification pin, improves safety in utilization.

When pushing down on the 3rd button 41, when driving three the 3rd pins 44 to move down to be pierced by three sockets 123, the 3rd Block 31 shelters from the 3rd slide opening 15, meanwhile, the wherein pin in three the 3rd pins 44 is inserted into the 6th socket 1232, then The pin makes the first movable movable blocking arm 94 of blocking arm 92 and the 3rd between the first movable movable blocking arm 94 of blocking arm 92 and the 3rd It can not swing, at this time, the first movable blocking arm 92 blocks the 8th socket 1212, and the second movable blocking arm 93 blocks up the 4th socket 1222 Firmly, prevent the first plug-assembly 2 from being moved down with the second plug-assembly 3, realize that the same time only uses a kind of purpose of specification pin, Improve safety in utilization.

The above described is only a preferred embodiment of the present invention, be not intended to limit the scope of the present invention, Therefore identical with the above embodiment of the present invention or approximate technical characteristic is used, and obtained other structures, the guarantor in the present invention Within the scope of shield.

Claims (12)

1. a kind of power supply changeover device, including cooperate the main body upper cover set and a main body lower cover, the main body upper cover and master Body lower cover is engaged to form the internal shell with an accommodating cavity, which offers some 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 one the 3rd socket group, it is characterised 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 arranged at rotational sleeve side at least Three lever arms, three lever arms be respectively extend to any socket side in the first socket group one first movable blocking arm, It is arranged at rotational sleeve side and extends to one second movable blocking arm of any socket side in the second socket group and be arranged at and turns Moving sleeve side and one the 3rd movable blocking arm for extending to any socket side in the 3rd socket group.

2. power supply changeover device according to claim 1, it is characterised in that have one the in the described first movable blocking arm end One guiding surface, has one second guiding surface, in the described 3rd movable blocking arm end side in the described second movable blocking arm end Side has one the 3rd guiding surface.

3. power supply changeover device according to claim 1 or 2, it is characterised in that one first is provided with the accommodating cavity Plug-assembly, it is characterised in that first plug-assembly includes one first block and is arranged on the first block end face and is pierced by One first button on outer side side, offers on the shell one side and is passed through for the first button and up and down one first Slide opening, on the outer casing inner wall and positioned at the first slide opening inner side edge it is up and down be inserted with for the first button pass through one first slide Block.

4. the plug-assembly according to claim 3 for power supply changeover device, it is characterised in that further include be arranged at it is accommodating One second plug-assembly of intracavitary, second plug-assembly include one second block and are arranged on the second block end face and wear Go out one second button of shell outer side edges, offer and passed through for the second button and up and down 1 on the shell one side Two slide openings, one second passed through for the second button is inserted with the outer casing inner wall and positioned at the second slide opening inner side edge is up and down Sliding block.

5. the plug-assembly according to claim 4 for power supply changeover device, it is characterised in that further include be arranged at it is accommodating Intracavitary and one the 3rd plug-assembly between the first plug-assembly and the second plug-assembly, the 3rd plug-assembly include wearing Go out one the 3rd button of shell outer side edges, offer and passed through for the 3rd button and up and down 1 on the shell one side Three slide openings, bottom is provided with the third gear block that the 3rd plug-assembly is run through in upper end, and the third gear block position in the accommodating cavity In the 3rd slide opening inner side edge.

6. power supply changeover device according to claim 3, it is characterised in that first plug-assembly further includes one first and inserts Head infrabasal plate, the one first plug upper substrate that is arranged on the first plug infrabasal plate upper surface and it is arranged at base under the first plug Plate lower end and up and down three first pins in the first socket group, wherein, first block is arranged at the first plug The end of infrabasal plate and the first plug upper substrate, one first passed through for the first button is offered on first sliding block and is driven Slide opening；The first plug infrabasal plate 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 with the outer casing inner wall and is slided for the one first of the first block and the insertion of the first sliding block Groove.

7. power supply changeover device according to claim 4, it is characterised in that second plug-assembly further includes one second and inserts Head infrabasal plate, the one second plug upper substrate that is arranged on the second plug infrabasal plate upper surface and it is arranged at base under the second plug Plate lower end and up and down three second pins in the second socket group, wherein, second block is arranged at the second plug Infrabasal plate and the second plug upper substrate end, one second passed through for the second button is offered on second sliding block and drives cunning Hole；The second plug infrabasal plate 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 with the outer casing inner wall and is slided for the one second of the second block and the insertion of the second sliding block Groove.

8. power supply changeover device according to claim 5, it is characterised in that the 3rd plug-assembly further includes one the 3rd and inserts Head infrabasal plate, one the 3rd plug upper substrate that is arranged on the 3rd plug infrabasal plate upper surface and it is arranged at base under the 3rd plug Plate lower end and up and down three the 3rd pins in the 3rd socket group, wherein, bottom is provided with confession in the accommodating cavity One slot of third gear block insertion, offers the perforation passed through for third gear block on the 3rd plug-assembly；Described Three plug infrabasal plate two sides upwardly extend respectively is provided with one the 3rd grab, and the 3rd grab upper end is fastened on the 3rd plug On upper substrate.

9. power supply changeover device according to claim 5, it is characterised 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 through the first plug-assembly, the second plug-assembly and the Some positioning columns of three plug-assemblies.

10. power supply changeover device according to claim 1, it is characterised in that the main body lower cover bottom offers linearly One first socket, one second socket and one the 3rd socket of 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 3rd socket, Rear offers one the 7th socket on the right side of 3rd socket, one the 8th socket is offered at the 6th socket rear, the 7th Socket rear offers one the 9th socket, wherein, the 3rd 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 forms the second socket group, the first socket, the 6th Socket is combined with the 7th socket and forms the 3rd socket group.

11. power supply changeover device according to claim 10, it is characterised 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, and the 3rd movable blocking arm end 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, it is characterised in that in the accommodating cavity and be located at the first plug A socket support is provided with above component, the second plug-assembly and the 3rd plug-assembly, one is inserted with 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 with being spaced from each other two-by-two in right socket shrapnel three, meanwhile, the left socket shrapnel, middle socket shrapnel with Right socket shrapnel matches setting with some 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 one the 3rd conductive sheet, which is electrically connected with left socket shrapnel Connect, which is electrically connected with middle socket shrapnel, and the 3rd conductive sheet 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, which includes first, protects Protect door and the second protection door；A circuit board is provided with the accommodating cavity and is respectively electrically connected to socket shrapnel group and conduction One resettable fuse of piece group, the resettable fuse are arranged in the side slot on outer casing inner wall.