阅读说明：本技术 一种可交换插头使用的充电连接头 (Charging connector capable of exchanging plug ) 是由 韩婉静 于 2021-08-02 设计创作，主要内容包括：本发明公开了涉及充电连接设备技术领域,具体为一种可交换插头使用的充电连接头,包括防护壳和USB插头,防护壳的上端开设有限位槽,限位槽的一端左右对称开设有卡槽,防护壳的内壁左右对称开设有凹槽,防护壳的前端左右对称插接有定位弹片,防护壳内壁的底端粘接有底板,底板的上端左右对称开设有定位孔,底板的上端粘接有电路板,电路板的上端等距焊接有金属片,本发明的有益效果是：通过支撑机构、定位机构和推动机构之间的相互配合,使USB插头与防护壳之间牢牢的固定在一起,防止使用的过程中USB插头晃动。(The invention discloses the technical field of charging connection equipment, in particular to a charging connector capable of exchanging plugs for use, which comprises a protective shell and a USB plug, wherein the upper end of the protective shell is provided with a limiting groove, one end of the limiting groove is bilaterally symmetrical and provided with clamping grooves, the inner wall of the protective shell is bilaterally symmetrical and provided with grooves, the front end of the protective shell is bilaterally symmetrical and spliced with positioning elastic sheets, the bottom end of the inner wall of the protective shell is bonded with a bottom plate, the upper end of the bottom plate is bilaterally symmetrical and provided with positioning holes, the upper end of the bottom plate is bonded with a circuit board, and the upper end of the circuit board is equidistantly welded with metal sheets, and the charging connector has the beneficial effects that: through the mutual matching among the supporting mechanism, the positioning mechanism and the pushing mechanism, the USB plug and the protective shell are firmly fixed together, and the USB plug is prevented from shaking in the using process.)

1. The utility model provides a charging connector that exchangeable plug used, includes protecting crust and USB plug, its characterized in that: the upper end of the protective shell is provided with a limiting groove, one end of the limiting groove is symmetrically provided with clamping grooves in the left-right direction, the inner wall of the protective shell is symmetrically provided with grooves in the left-right direction,

the front end of the protective shell is inserted with positioning elastic pieces in bilateral symmetry, the bottom end of the inner wall of the protective shell is bonded with a bottom plate, the upper end of the bottom plate is provided with positioning holes in bilateral symmetry, the upper end of the bottom plate is bonded with a circuit board, the upper end of the circuit board is welded with metal sheets at equal intervals, the upper end of the bottom plate is provided with a mobile terminal plug at the end part of the circuit board, the protective shell is internally provided with a USB plug,

the USB plug is characterized in that a pair of positioning grooves are symmetrically formed in the left side and the right side of the USB plug, the positioning elastic pieces are connected with the positioning grooves in a clamped mode, supporting mechanisms are symmetrically arranged at the left side and the right side of one end of the USB plug, positioning mechanisms are arranged in the supporting mechanisms, a pushing mechanism is arranged between the two supporting mechanisms at one end of the USB plug, and a conductive mechanism is arranged between the two supporting mechanisms.

2. A charging connector as claimed in claim 1, wherein: the positioning elastic sheet is a convex elastic sheet and is in sliding fit with the protective shell.

3. A charging connector as claimed in claim 1, wherein: the USB plug is arranged in a concave shape, the USB plug is in sliding connection with the protective shell, and the mobile terminal plug is arranged below the USB plug.

4. A charging connector as claimed in claim 1, wherein: the supporting mechanism comprises: the USB plug comprises a concave seat, a sliding groove, a top plate, a second elastic sheet, a sliding block, a fixing rod and a clip frame, wherein the concave seat is welded at one end of the USB plug in a bilateral symmetry mode, the sliding groove is symmetrically formed in the inner side of the concave seat, the top plate is welded at the upper end of the concave seat, the second elastic sheet is welded at the lower end of the top plate, the sliding block is welded at the side face of the concave seat, the sliding block is connected with a groove in a sliding mode, the side face of the concave seat is welded with one end of the fixing rod respectively, and the other ends of the two fixing rods are welded with the clip frame respectively.

5. A charging connector as claimed in claim 4, wherein: the positioning mechanism comprises: the movable block, slide, rectangular channel, locating lever and press the briquetting, sliding connection has the movable block in the spill seat, the bilateral symmetry welding of movable block has the slide, slide and spout sliding connection, the rectangular channel has all been seted up to the opposite face of two movable blocks, the lower extreme welding of movable block has the locating lever, the locating lever is pegged graft with the locating hole, and the opposite face of two movable blocks all welds and presses the briquetting.

6. A charging connector as claimed in claim 4, wherein: the second elastic sheet is an S-shaped elastic sheet, and the lower end of the second elastic sheet is welded with the movable block.

7. A charging connector as claimed in claim 1, wherein: the pushing mechanism comprises: fixed block, convex groove, convex block, first shell fragment, rotor plate and connecting block, the one end welding of USB plug has the fixed block, the convex groove has been seted up on the fixed block, it has the convex block to peg graft in the upper end of convex groove, bilateral symmetry welding has first shell fragment between the lower extreme of convex block and the bottom of convex groove, the convex inslot bilateral symmetry is provided with the rotor plate, the rotor plate passes through the pin rod and is connected with the fixed block rotation, and the rotor plate slope sets up, the one end setting of rotor plate is at the lower extreme of convex block, and the other end of rotor plate has the connecting block through hinged joint, connecting block and rectangular channel sliding fit.

8. A charging connector as claimed in claim 7, wherein: the upper end of the convex block runs through the limiting groove, the convex block is connected with the limiting groove in a sliding mode, and the convex block is connected with the clamping groove in a clamping mode.

9. A charging connector as claimed in claim 1, wherein: the conductive mechanism comprises: the movable plate is welded with the third elastic sheet in a bilateral symmetry mode, the left end and the right end of the movable plate are symmetrically inserted into the clip-shaped frame, the lower end of the third elastic sheet is welded with the clip-shaped frame, the extrusion blocks are welded at the lower end of the movable plate in an equidistant mode, the elastic metal joint is welded at the lower end of the extrusion blocks, and the lower end of the elastic metal joint is tightly attached to the metal sheet.

10. A charging connector as claimed in claim 9, wherein: the two ends of the movable plate respectively penetrate through the two clip-shaped frames and extend to the outside, the movable plate is connected with the clip-shaped frames in a sliding mode, and the pressing block is in contact with the end portions of the movable plate.

Technical Field

The invention relates to the technical field of charging connection equipment, in particular to a charging connector capable of being used with an exchangeable plug.

Background

With the development of society, electrical equipment is visible everywhere in life, and most of electrical appliances commonly used in daily life need a charger to charge the electrical equipment. Charging sockets of some electrical appliances are different due to different electrical equipment. When people go out for travel or on a business trip, different plug connectors are prepared according to different devices, and chargers are selected according to the devices during use. The function of charger is comparatively single, can not be fine adaptation different adaptation situations. In the existing life, although some plugs of the charging wire can be detached and replaced or changed over, the connection between the plugs is unstable, and the phenomenon of poor contact is easy to occur; the plug of switching occupies space when not using, and easy damage influences normal use, is not convenient for use in actual life.

Therefore, we propose a charging connector with exchangeable plug to solve the above drawbacks.

Disclosure of Invention

The present invention is directed to a charging connector with an exchangeable plug, so as to solve the problems mentioned in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: a charging connector capable of being used with a replaceable plug comprises a protective shell and a USB plug, wherein a limiting groove is formed in the upper end of the protective shell, clamping grooves are symmetrically formed in one end of the limiting groove in a bilateral mode, grooves are symmetrically formed in the inner wall of the protective shell in the bilateral mode, positioning elastic pieces are symmetrically inserted into the front end of the protective shell in the bilateral mode, a bottom plate is bonded to the bottom end of the inner wall of the protective shell, positioning holes are symmetrically formed in the upper end of the bottom plate in the bilateral mode, a circuit board is bonded to the upper end of the bottom plate, metal sheets are welded to the upper end of the circuit board in an equidistant mode, a mobile terminal plug is arranged at the end portion of the circuit board at the upper end of the bottom plate, the USB plug is arranged in the protective shell, a pair of positioning grooves are symmetrically formed in the left side and the right side of the USB plug, the positioning elastic pieces are clamped with the positioning grooves, a supporting mechanism is symmetrically arranged at one end of the USB plug in the bilateral mode, and a positioning mechanism is arranged in the supporting mechanism, one end of the USB plug is provided with a pushing mechanism between the two supporting mechanisms, and a conductive mechanism is arranged between the two supporting mechanisms.

Preferably, the positioning elastic sheet is a convex elastic sheet, and the positioning elastic sheet is in sliding fit with the protective shell.

Preferably, the USB plug is arranged in a concave shape, the USB plug is connected with the protective shell in a sliding mode, and the mobile terminal plug is arranged below the USB plug.

Preferably, the support mechanism includes: the USB plug comprises a concave seat, a sliding groove, a top plate, a second elastic sheet, a sliding block, a fixing rod and a clip frame, wherein the concave seat is welded at one end of the USB plug in a bilateral symmetry mode, the sliding groove is symmetrically formed in the inner side of the concave seat, the top plate is welded at the upper end of the concave seat, the second elastic sheet is welded at the lower end of the top plate, the sliding block is welded at the side face of the concave seat, the sliding block is connected with a groove in a sliding mode, the side face of the concave seat is welded with one end of the fixing rod respectively, and the other ends of the two fixing rods are welded with the clip frame respectively.

Preferably, the positioning mechanism comprises: the movable block, slide, rectangular channel, locating lever and press the briquetting, sliding connection has the movable block in the spill seat, the bilateral symmetry welding of movable block has the slide, slide and spout sliding connection, the rectangular channel has all been seted up to the opposite face of two movable blocks, the lower extreme welding of movable block has the locating lever, the locating lever is pegged graft with the locating hole, and the opposite face of two movable blocks all welds and presses the briquetting.

Preferably, the second elastic sheet is an S-shaped elastic sheet, and the lower end of the second elastic sheet is welded with the movable block.

Preferably, the pushing mechanism comprises: fixed block, convex groove, convex block, first shell fragment, rotor plate and connecting block, the one end welding of USB plug has the fixed block, the convex groove has been seted up on the fixed block, it has the convex block to peg graft in the upper end of convex groove, bilateral symmetry welding has first shell fragment between the lower extreme of convex block and the bottom of convex groove, the convex inslot bilateral symmetry is provided with the rotor plate, the rotor plate passes through the pin rod and is connected with the fixed block rotation, and the rotor plate slope sets up, the one end setting of rotor plate is at the lower extreme of convex block, and the other end of rotor plate has the connecting block through hinged joint, connecting block and rectangular channel sliding fit.

Preferably, the upper end of the convex block penetrates through the limiting groove, the convex block is connected with the limiting groove in a sliding mode, and the convex block is connected with the clamping groove in a clamping mode.

Preferably, the conductive mechanism includes: the movable plate is welded with the third elastic sheet in a bilateral symmetry mode, the left end and the right end of the movable plate are symmetrically inserted into the clip-shaped frame, the lower end of the third elastic sheet is welded with the clip-shaped frame, the extrusion blocks are welded at the lower end of the movable plate in an equidistant mode, the elastic metal joint is welded at the lower end of the extrusion blocks, and the lower end of the elastic metal joint is tightly attached to the metal sheet.

Preferably, two ends of the movable plate respectively penetrate through the two clip frames and extend to the outside, the movable plate is connected with the clip frames in a sliding manner, and the pressing block is in contact with the end of the movable plate.

Compared with the prior art, the invention has the beneficial effects that: the invention has reasonable structure and strong functionality, and has the following advantages:

in the figure: a protective shell 1; a limiting groove 11; a card slot 12; a groove 13; positioning the elastic sheet 14; a base plate 2; a positioning hole 21; a circuit board 3; a metal sheet 31; a mobile terminal plug 32; a USB plug 4; a positioning groove 41; a fixed block 42; a convex groove 43; a convex block 5; a first resilient piece 51; a rotating plate 52; a connecting block 53; a concave seat 6; a chute 61; a top plate 62; a second spring plate 63; a slider 64; a fixing bar 65; a frame 66 in a shape of a square; a movable block 7; a slide plate 71; a rectangular slot 72; a positioning rod 73; a pressing block 74; a movable plate 8; a third elastic piece 81; an extrusion block 82; an elastic metal joint 9.

1. When the mobile terminal plug needs to be used, the convex block is pressed downwards, the convex block is moved out of the clamping groove, meanwhile, the convex block pushes one ends of the two rotating plates to rotate downwards, the other ends of the rotating plates rotate upwards, the rotating plates drive the connecting block to rotate upwards, the connecting block drives the movable block to move upwards, the positioning rod is moved out of the positioning hole, the convex block slides back along the limiting groove, the USB plug slides back along the protective shell, the USB plug is retracted into the protective shell, the positioning elastic sheet is clamped with the positioning groove at the end part of the USB plug, the USB plug is fixed, and therefore the mobile terminal plug is exposed and convenient to use, and the USB plug is retracted into the protective shell to be protected, and the USB plug is prevented from being damaged;

2. when the USB plug needs to be used, the convex block is pressed downwards, the movable block drives the positioning rod to move upwards, the convex block is pushed forwards along the limiting groove, the USB plug is pushed to slide forwards along the protective shell by the convex block, when the positioning elastic sheet is clamped with the positioning groove at the rear end of the USB plug, the convex block is stopped being pushed, the elastic metal connector slides to the upper end of the metal sheet along the circuit board at the moment and is tightly attached to the metal sheet, the pressing on the convex block is released, the convex block moves upwards under the action of the elastic force of the first elastic sheet, the convex block is clamped with the clamping groove, so that the convex block is fixed, meanwhile, the second elastic sheet pushes the movable block to move downwards, the positioning rod is inserted into the positioning hole, the movable block and the concave seat are fixed, the USB plug is fixed, the movable block moves downwards while driving the pressing block to move downwards, and the movable plate drives the movable plate to move downwards, the elastic metal joint and the metal sheet are pushed to be extruded through the extrusion block, so that the elastic metal joint and the metal sheet are connected more stably, and the mutual stable transmission of power supply or data is ensured;

3. through the mutual cooperation between supporting mechanism, positioning mechanism and the pushing mechanism, make firmly fixed together between USB plug and the protecting crust, prevent that the in-process USB plug that uses from rocking, through positioning mechanism and the cooperation of electrically conductive mechanism, make the stable connection of elastic metal joint and sheetmetal, guarantee power or data mutual stabilization's transmission, reasonable in design, easy operation is convenient, with in the USB plug income protecting crust, save space promptly, protection USB plug that again can be fine.

Drawings

FIG. 1 is a schematic structural diagram of a charging connector according to the present invention;

FIG. 2 is a schematic view of the interior of the charging connector structure according to the present invention;

fig. 3 is a schematic longitudinal sectional view of the charging connector structure according to the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 3;

fig. 5 is a schematic cross-sectional view of a charging connector structure according to the present invention;

FIG. 6 is an enlarged view of the structure at B in FIG. 5;

FIG. 7 is a schematic view of the pushing mechanism of the present invention;

fig. 8 is a schematic structural diagram of a circuit board and a conductive mechanism according to the present invention.

In the figure: 1. a protective shell; 11. a limiting groove; 12. a card slot; 13. a groove; 14. positioning the elastic sheet; 2. a base plate; 21. positioning holes; 3. a circuit board; 31. a metal sheet; 32. a mobile terminal plug; 4. a USB plug; 41. positioning a groove; 42. a fixed block; 43. a convex groove; 5. a convex block; 51. a first spring plate; 52. a rotating plate; 53. connecting blocks; 6. a concave seat; 61. a chute; 62. a top plate; 63. a second elastic sheet; 64. a slider; 65. fixing the rod; 66. a clip frame; 7. a movable block; 71. a slide plate; 72. a rectangular groove; 73. positioning a rod; 74. a pressing block; 8. a movable plate; 81. a third elastic sheet; 82. extruding the block; 9. an elastic metal joint.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 8, the present invention provides a technical solution: the utility model provides a charging connector that exchangeable plug used, including protecting crust 1 and USB plug 4, spacing groove 11 has been seted up to protecting crust 1's upper end, draw-in groove 12 has been seted up to the one end bilateral symmetry of spacing groove 11, protection crust 1's inner wall bilateral symmetry sets up recess 13, protection crust 1's front end bilateral symmetry is pegged graft and is had location shell fragment 14, the bottom of protection crust 1 inner wall bonds there is bottom plate 2, locating hole 21 has been seted up to bottom plate 2's upper end bilateral symmetry, bottom plate 2's upper end bonds there is circuit board 3, circuit board 3's upper end equidistance welding has sheetmetal 31. One end of the circuit board 3 is connected to the data line through a power line.

The upper end of bottom plate 2 is provided with mobile terminal plug 32 at the tip of circuit board 3, circuit board 3 and mobile terminal plug 32 electric connection, be provided with USB plug 4 in the protecting crust 1, a pair of constant head tank 41 has been seted up to USB plug 4's left and right sides symmetry, location shell fragment 14 and constant head tank 41 joint, location shell fragment 14 is convex shell fragment, location shell fragment 14 and 1 sliding fit of protecting crust, USB plug 4 becomes the spill setting, USB plug 4 and 1 sliding connection of protecting crust, mobile terminal plug 32 sets up the below at USB plug 4, through location shell fragment 14 and constant head tank 41 joint, thereby to USB plug 4 locking and location.

USB plug 4's one end bilateral symmetry is provided with supporting mechanism, and supporting mechanism is including: concave seat 6, spout 61, roof 62, second shell fragment 63, slider 64, dead lever 65 and circle shape frame 66, USB plug 4's one end bilateral symmetry welding has concave seat 6, spout 61 has been seted up to concave seat 6's inboard symmetry, concave seat 6's upper end welding has roof 62, roof 62's lower extreme welding has second shell fragment 63, concave seat 6's side welding has slider 64, slider 64 and recess 13 sliding connection, concave seat 6's side welds with the one end of dead lever 65 respectively, the other end of two dead levers 65 welds in circle shape frame 66 respectively, drive concave seat 6 and remove when USB plug 4 removes, thereby make the supporting mechanism remove.

Be provided with positioning mechanism in the supporting mechanism, positioning mechanism is including: the movable block 7, slide 71, the rectangular channel 72, locating lever 73 and pressure piece 74, sliding connection has movable block 7 in the spill seat 6, second shell fragment 63 is the S-shaped shell fragment, the lower extreme and the movable block 7 welding of second shell fragment 63, the bilateral symmetry welding of movable block 7 has slide 71, slide 71 and spout 61 sliding connection, rectangular channel 72 has all been seted up to the opposite face of two movable blocks 7, the lower extreme welding of movable block 7 has locating lever 73, locating lever 73 is pegged graft with locating hole 21, the opposite face of two movable blocks 7 has all been welded and has been pressed piece 74, second shell fragment 63 is applyed to movable block 7 and is elasticity, movable block 7 drives slide 71 and slides from top to bottom along spout 61.

One end of the USB plug 4 is provided with a pushing mechanism between the two supporting mechanisms, and the pushing mechanism comprises: fixed block 42, convex groove 43, convex block 5, first shell fragment 51, rotor plate 52 and connecting block 53, the one end welding of USB plug 4 has fixed block 42, the convex groove 43 has been seted up on fixed block 42, the upper end of convex groove 43 is pegged graft and is had convex block 5, bilateral symmetry welding has first shell fragment 51 between the lower extreme of convex block 5 and the bottom of convex groove 43, the upper end and the 5 welding of convex block of first shell fragment 51, the lower extreme and the welding of convex groove 43 of first shell fragment 51, first shell fragment 51 is applyed to convex block 5 and is elasticity.

Bilateral symmetry is provided with rotor plate 52 in convex groove 43, rotor plate 52 rotates through pin pole and fixed block 42 to be connected, and rotor plate 52 slope sets up, the one end setting of rotor plate 52 is at the lower extreme of convex block 5, there is connecting block 53 at the other end of rotor plate 52 through hinged joint, connecting block 53 and rectangular channel 72 sliding fit, the upper end of convex block 5 runs through spacing groove 11 and sets up, and convex block 5 and 11 sliding connection of spacing groove, convex block 5 and draw-in groove 12 joint, convex block 5 promotes the one end of two rotor plates 52 and rotates downwards, make the other end of rotor plate 52 rotate upwards, rotor plate 52 drives connecting block 53 and rotates upwards, connecting block 53 drives movable block 7 upward movement.

Be provided with electrically conductive mechanism between two supporting mechanism, electrically conductive mechanism is including: the movable plate 8, the third elastic sheet 81, the pressing block 82 and the elastic metal joint 9, the third elastic sheet 81 is welded at the lower end of the movable plate 8 in a bilateral symmetry manner, the left end and the right end of the movable plate 8 are symmetrically inserted into the clip-shaped frame 66, the lower end of the third elastic sheet 81 is welded with the clip-shaped frame 66, and the third elastic sheet 81 applies elasticity to the movable plate 8.

The both ends of fly leaf 8 run through two respectively and return shape frame 66 and extend to the outside, and fly leaf 8 and return shape frame 66 sliding connection, the tip contact of pressing block 74 and fly leaf 8, the lower extreme equidistance welding of fly leaf 8 has extrusion block 82, the lower extreme welding of extrusion block 82 has elastic metal joint 9, the lower extreme and the sheetmetal 31 of elastic metal joint 9 closely laminate, fly leaf 8 drives extrusion block 82 downstream, promote elastic metal joint 9 and sheetmetal 31 extrusion through extrusion block 82, make more stable connection between elastic metal joint 9 and the sheetmetal 31.

Through supporting mechanism, mutually supporting between positioning mechanism and the pushing mechanism, make firmly fixed together between USB plug 4 and the protecting crust 1, prevent that in-process USB plug 4 that uses from rocking, through positioning mechanism and the cooperation of electrically conductive mechanism, make the stable connection of elastic metal joint 9 and sheetmetal 31, guarantee power or data mutual stabilization's transmission, reasonable in design, easy operation is convenient, in taking in USB plug 4 protecting crust 1, save space promptly, protection USB plug 4 that again can be fine.

The specific operation is as follows: when the mobile terminal plug 32 needs to be used, the convex block 5 is pressed downwards, so that the lower end of the convex block 5 is moved out of the clamping groove 12, meanwhile, the convex block 5 pushes one end of the two rotating plates 52 to rotate downwards, so that the other end of the rotating plate 52 rotates upwards, the rotating plate 52 drives the connecting block 53 to rotate upwards, the connecting block 53 drives the movable block 7 to move upwards, the movable block 7 drives the sliding plate 71 to move upwards along the sliding groove 61, meanwhile, the movable block 7 drives the positioning rod 73 to move upwards, so that the positioning rod 73 is moved out of the positioning hole 21, then, the convex block 5 slides backwards along the limiting groove 11, the convex block 5 drives the fixed block 42 to move, the fixed block 42 drives the USB plug 4 to move, so that the USB plug 4 slides backwards along the protective shell 1, the USB plug 4 drives the supporting mechanism, the positioning mechanism and the conductive mechanism to slide inwards the protective shell 1, so that the sliding block 64 on the side surface of the concave seat 6 slides along the groove 13, withdraw USB plug 4 in the protecting crust 1, make the constant head tank 41 joint of location shell fragment 14 and the 4 tip of USB plug, fix USB plug 4 to make mobile terminal plug 32 expose, facilitate the use, and protect in taking in the protecting crust 1 USB plug 4, prevent that USB plug 4 from damaging.

When the USB plug 4 needs to be used, the convex block 5 is pressed downwards, the movable block 7 drives the positioning rod 73 to move upwards through the pushing mechanism, then the convex block 5 is pushed forwards along the limiting groove 11, the USB plug 4 is pushed to slide forwards along the protective shell 1 by the convex block 5, when the positioning elastic sheet 14 is clamped with the positioning groove 41 at the rear end of the USB plug 4, the convex block 5 is stopped to be pushed, the elastic metal connector 9 slides to the upper end of the metal sheet 31 along the circuit board 3 and is tightly attached to the metal sheet 31, then the pressing on the convex block 5 is released, the convex block 5 moves upwards under the action of the elastic force of the first elastic sheet 51, the convex block 5 is clamped with the clamping groove 12, so that the convex block 5 is fixed, meanwhile, the second elastic sheet 63 pushes the movable block 7 to move downwards, the positioning rod 73 is inserted into the positioning hole 21, the movable block 7 and the concave seat 6 are fixed, so that the USB plug 4 is fixed, the movable block 7 moves downwards and simultaneously drives the pressing block 74 to move downwards, the pressing block 74 drives the movable plate 8 to move downwards, the movable plate 8 drives the extrusion block 82 to move downwards, the extrusion block 82 pushes the elastic metal connector 9 to be extruded with the metal sheet 31, and therefore the elastic metal connector 9 and the metal sheet 31 are connected more stably, and transmission of power supply or data is guaranteed to be stable.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.