Locking structure and European standard adapter

Abstract

The utility model belongs to the technical field of new energy automobile charging devices, and particularly relates to a locking structure and an European standard adapter, the locking structure comprises a rotating seat, a base, a lock plate, an elastic sheet, a slide rail, a first reset piece and a second reset piece, the slide rail and the rotating seat are arranged on the base; the lock plate is provided with a first end and a second end which are opposite in the length direction, the middle of the lock plate in the length direction is rotationally connected to the rotating seat, a rotating shaft of the lock plate extends in the first direction, and a lock catch is arranged at the first end and used for being connected with a first external device in a buckled mode; the first reset piece is arranged between the base and the lock plate, and the first end tends to move towards the base under the acting force of the first reset piece; the sliding rail extends in the second direction, the elastic piece is connected with the sliding rail in a sliding mode, the elastic piece can slide between a first preset position and a second preset position, and the elastic piece tends to move away from the first preset position under the acting force of the second reset piece. According to the utility model, the unlocking step after the new energy automobile is charged is simplified.

Description

Technical Field

[0001] The utility model belongs to the technical field of new energy charging devices, and particularly relates to a locking structure and a European standard adapter. Background Art

[0002] At present, new energy vehicles are charged through a charging gun. However, the design of the charging guns or the design standards of the charging ports in different countries and regions are different. Therefore, an adapter is required for conversion.

[0003] At present, the national standard adapter is connected to the adapter through an electronic lock buckle on the charging gun. During charging, the electronic lock locks the adapter and the charging gun. When unlocking, the user needs to enter the vehicle and press the charging gun unlocking button, and then pull out the charging gun and the adapter, which has the problem of cumbersome unlocking process. Summary of the Invention

[0004] The technical problem to be solved by the utility model is: aiming at the problem that the existing adapter lacks a locking structure for the charging port and the adapter, and it is easy to accidentally pull out the adapter and cause damage to the vehicle, a locking structure and a European standard adapter are provided.

[0005] To solve the above technical problem, on the one hand, an embodiment of the utility model provides a locking structure, which includes a rotating seat, a base, a locking plate, a spring piece, a slide rail, a first reset member and a second reset member. The slide rail and the rotating seat are arranged on the base;

[0006] The locking plate has a first end and a second end opposite to each other along its length direction. The middle part of the length direction of the locking plate is rotatably connected to the rotating seat. The rotation axis of the locking plate extends along a first direction. A lock buckle is arranged on the first end, and the lock buckle is used for snap connection with a first external device;

[0007] The first reset member is arranged between the base and the locking plate, and the first end has a tendency to move towards the base under the action of the first reset member;

[0008] The slide rail extends along a second direction. The spring piece is slidably connected to the slide rail. The spring piece can slide between a first preset position and a second preset position. When the spring piece enters the first preset position from the second preset position, the spring piece gradually enters the gap between the second end and the base;

[0009] The spring piece has a tendency to move away from the first preset position under the action of the second reset member;

[0010] There is a non-zero included angle between the first direction and the second direction.

[0011] Optionally, the first reset member is a spring. One end of the first reset member is connected to the base, and the other end of the first reset member is connected to the second end.

[0012] An avoidance groove is provided on the elastic sheet, and the avoidance groove is used to avoid the first reset member.

[0013] Optionally, the second reset member is a spring, and the second reset member expands and contracts along the third direction; one end of the second reset member is connected to the elastic sheet, and the other end of the second reset member is connected to the rotating seat, the base or the slide rail, and the second reset member expands and contracts along the first direction;

[0014] The first direction, the second direction and the third direction are perpendicular to each other in pairs.

[0015] Optionally, it further includes a rotating bolt and a nut. The rotating bolt includes a bolt head, a smooth section and a threaded section. The bolt head and the threaded section are respectively arranged at both ends of the smooth section. The bolt head and the threaded section are located outside the rotating seat. The nut is threadedly connected to the threaded section. A through hole is provided on the lock plate, and the central axis of the through hole extends along the first direction. The smooth section passes through the lock plate and the rotating seat.

[0016] The present utility model also discloses a European standard adapter, which includes a housing and the above-mentioned locking structure. The housing includes a first housing, a second housing and a third housing connected in sequence along the second direction. The outer edges of the first housing and the third housing are both located within the outer edge of the second housing. The first housing is used to connect with the charging gun, and the third housing is used to connect with the charging device;

[0017] The second housing constitutes the base. A first side plate and a second side plate are spaced apart on the second housing. The first side plate and the second side plate constitute the rotating seat. The lock plate is arranged between the first side plate and the second side plate. The first end extends to the outside of the outer edge of the first housing. The lock catch is arranged towards the center of the first housing. The slide rail is arranged on the second housing;

[0018] When the elastic sheet is in the second preset position, a part of the elastic sheet is located outside the outer edge of the third housing, so that when the third housing is inserted into the charging device, the elastic sheet can be pushed into the first preset position by the charging device.

[0019] Optionally, a third side plate is further provided on the second housing. The third side plate is arranged between the first side plate and the second side plate. The third side plate is perpendicular to the first side plate. A jack is provided on the third side plate. The jack penetrates through the third side plate along the second direction. The lock plate passes through the jack.

[0020] Optionally, the lock plate includes a first stepped plate, a second stepped plate, a third stepped plate, and a button. The first stepped plate and the third stepped plate are disposed at two ends of the second stepped plate. One end of the third stepped plate away from the second stepped plate is connected to the button. The first stepped plate, the second stepped plate, the third stepped plate, and the button are gradually away from the base, so that the lock plate is in a stepped shape. The lock catch is disposed on the first stepped plate, the through hole is disposed on the second stepped plate, the first stepped plate passes through the insertion hole, and the first reset member is disposed between the button and the base.

[0021] Optionally, the slide rail is disposed on a side of the second housing close to the third housing. The slide rail includes a first folded edge, a second folded edge, a first rail plate, and a second rail plate. The first rail plate and the second rail plate are oppositely disposed on the second housing. The first folded edge is formed by bending from a side of the first rail plate away from the second housing towards the second rail plate. The second folded edge is formed by bending from a side of the second rail plate away from the second housing towards the first rail plate.

[0022] Optionally, the elastic sheet includes a lapping portion, a first end portion, and a second end portion. The first end portion and the second end portion are disposed on a side of the second end portion close to the first preset position. There are two second reset members. One second reset member is disposed between the first end portion and the rotating seat, and the other second reset member is disposed between the second end portion and the rotating seat;

[0023] The first end portion and the second end portion are spaced apart to form the avoidance groove. The opposite sides of the first end portion and the second end portion are recessed towards the base to form a groove. The groove communicates with the avoidance groove. When the elastic sheet is in the second preset position, the button can enter the groove;

[0024] When the elastic sheet moves from the second preset position to the first preset position, the button moves out of the groove and laps on the lapping portion.

[0025] Optionally, in a direction away from the first preset position, the width of the lapping portion in the first direction gradually decreases;

[0026] A ring convex is disposed around the third housing. The ring convex is provided with a notch. The notch faces the elastic sheet. In a direction away from the first preset position, the width of the notch in the first direction gradually decreases. The minimum width of the notch is greater than the minimum width of the lapping portion, so that the lapping portion can pass through the notch in a direction away from the first preset position.

[0027] The locking structure and the European standard adapter according to the embodiments of the present utility model. The locking structure is a mechanical locking structure. Applying an external force to the second end can drive the lock to unlock. The structure is simple and easy to operate. When the locking structure is applied to the adapter, the second reset member pushes the elastic piece to move to the second preset position. The user only needs to press the second end, and the lock will disengage from the charging gun to achieve unlocking, without the customer having to open the car door and then press the unlock button. The present utility model does not require the customer to enter the vehicle body, and the charging gun and the adapter can be unlocked outside the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 FIG. is an overall schematic diagram of the European standard adapter provided by an embodiment of the present utility model;

[0029] Figure 2 FIG. is an exploded schematic diagram of the European standard adapter provided by an embodiment of the present utility model;

[0030] Figure 3 is Figure 2 an enlarged schematic diagram of part A of

[0031] Figure 4 FIG. is a half-sectional schematic diagram of the European standard adapter provided by an embodiment of the present utility model;

[0032] Figure 5 FIG. is a schematic diagram of the structure of the European standard adapter before use provided by an embodiment of the present utility model;

[0033] Figure 6 FIG. is a schematic diagram of the structure of the European standard adapter during use provided by an embodiment of the present utility model;

[0034] Figure 7 is Figure 6 an enlarged view of part B of

[0035] Figure 8 is Figure 6 an enlarged view of part C of

[0036] The reference numerals in the specification are as follows: 100, the first direction; 200, the second direction; 300, the third direction;

[0037] 1. Housing; 11. First housing; 12. Second housing; 13. Third housing; 131. Ring convex; 132. Notch; 2. Rotating seat; 21. First side plate; 22. Second side plate; 23. Third side plate; 24. Jack; 3. Locking plate; 31. First step plate; 32. Second step plate; 33. Third step plate; 34. Button; 35. Lock; 4. Elastic piece; 41. First end; 42. Second end; 43. Lapping part; 44. Avoidance groove; 45. Groove; 51. First reset part; 52. Second reset part; 6. Slide rail; 61. First track plate; 62. Second track plate; 63. First hem; 64. Second hem; 71. Rotating bolt; 711. Bolt head; 712. Smooth section; 713. Thread section; 72. Nut; 81. First preset position; 82. Second preset position; 91. Charging gun; 92. Charging device; 93. Electronic lock. Detailed implementation manners

[0038] In order to make the technical problems, technical solutions and beneficial effects solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0039] As Figures 1 to 4 shown, an embodiment of the present utility model provides a locking structure, including a rotating seat 2, a base, a locking plate 3, an elastic piece 4, a slide rail 6, a first reset part 51 and a second reset part 52. The slide rail 6 and the rotating seat 2 are arranged on the base; the locking plate 3 has a first end and a second end which are oppositely arranged along its length direction. The middle part of the locking plate 3 in the length direction is rotatably connected to the rotating seat 2. The rotation axis of the locking plate 3 extends along the first direction 100. A lock 35 is arranged on the first end, and the lock 35 is used for snap connection with a first external device;

[0040] In this embodiment, the working principle of the locking plate 3 is the same as that of a seesaw, and both adopt the lever principle. When the first end moves downward around its rotation point, the lock 35 is snap-connected to the first external device. At the same time, the second end rotates upward. Through a mechanical locking structure, applying an external force to the second end can drive the lock 35 to unlock, with a simple structure and easy operation.

[0041] The first reset member 51 is disposed between the base and the lock plate 3, and the first reset member 51 is configured to provide a tendency for the first end to move toward the base. In combination with the above, the first reset member 51 always provides a force for the first end to move toward the base, so as to keep the first end always snap-connected to the first external device and maintain the locked state. In some embodiments, the first reset member 51 may be a compression spring disposed between the second end and the base to provide an upward elastic force to the first reset member 51. In some embodiments, the first reset member 51 is disposed between the first end and the base and is a tension spring to provide a downward pulling force to the first end.

[0042] In this embodiment, the slide rail 6 extends along the second direction 200, the elastic piece 4 is slidably connected to the slide rail 6, the elastic piece 4 slides between the first preset position 81 and the second preset position 82, the first preset position 81 is located on the side of the second end close to the base, and the second reset member 52 is configured to provide a tendency for the elastic piece 4 to move away from the first preset position 81; there is a non-zero included angle between the first direction 100 and the second direction 200.

[0043] In combination with the above, when the lock catch 35 on the first end is connected to the first external device, the second reset member 52 provides a force for the elastic piece 4 to move toward the first preset position 81, driving the elastic piece 4 to move toward the first preset position 81, that is, driving the elastic piece 4 to move below the second end, so that the interval between the second end and the base is embedded by the elastic piece 4, making the second end unable to move downward. When unlocking, the elastic piece 4 is withdrawn from the interval between the second end and the base, and pressing the second end can achieve unlocking.

[0044] In this embodiment, for the convenience of description, the direction of the second end close to the base is called down, and the direction of the second end away from the base is called up.

[0045] As an example, both the first reset member 51 and the second reset member 52 are springs. One end of the first reset member 51 is connected to the base, and the other end of the first reset member 51 is connected to the second end. The second reset member 52 expands and contracts along the third direction 300; an avoidance groove 44 is provided on the elastic piece 4, and the avoidance groove 44 is used to avoid the first reset member 51; one end of the second reset member 52 is connected to the elastic piece 4, and the other end of the second reset member 52 is connected to the rotating seat 2, the base or the slide rail 6, and the second reset member 52 expands and contracts along the first direction 100; the first direction 100, the second direction 200 and the third direction 300 are perpendicular to each other in pairs. In this embodiment, the third direction 300 and the above up and down directions are the same direction.

[0046] As an example, the locking structure further includes a rotating bolt 71 and a nut 72. The rotating bolt 71 includes a bolt head 711, a smooth section 712, and a threaded section 713. The bolt head 711 and the threaded section 713 are respectively disposed at two ends of the smooth section 712. The bolt head 711 and the threaded section 713 are located outside the rotating seat 2. The nut 72 is threadedly connected to the threaded section 713. A through hole is provided on the locking plate 3, and the central axis of the through hole extends along the first direction 100. The smooth section 712 passes through the locking plate 3 and the rotating seat 2.

[0047] Referring to Figures 1 to 4 , an embodiment of the present invention further discloses a European standard adapter, which includes a housing 1 and the locking structure in the above embodiment. The housing 1 includes a first housing 111, a second housing 121, and a third housing 131 that are sequentially connected along the second direction 200. The outer edges of the first housing 111 and the third housing 131 are both located within the outer edge of the second housing 121. That is, the plane formed by the first direction 100 and the third direction 300 is called a reference plane. The outer edge of the second housing 121 is located outside the outer edge of the first housing 111 in the positive projection on the reference plane, and the outer edge of the second housing 121 is located outside the outer edge of the third housing 131 in the positive projection on the reference plane. The first housing 111 is used to connect with the charging gun 91, and the third housing 131 is used to connect with the charging device 92.

[0048] Referring to Figures 5 to 8 , a first electrical connection end is provided in the first housing 111, and a third external connection end is provided in the third housing 131. The first housing 111 and the charging gun 91 are plugged in, and the first housing 111 is inserted into the charging gun 91. The third housing 131 and the charging device 92 are plugged in, and the third housing 131 is also inserted into the charging device 92.

[0049] The second housing 121 constitutes the base of the locking structure in the above embodiment. The first side plate 21 and the second side plate 22 are spaced apart on the second housing 121. The first side plate 21 and the second side plate 22 constitute the rotating seat 2. The locking plate 3 is disposed between the first side plate 21 and the second side plate 22. The first end extends to the outside of the outer edge of the first housing 111. The lock catch 35 is arranged towards the center of the first housing 111. The slide rail 6 is provided on the second housing 121, and the slide rail 6 is provided on the side of the rotating seat 2 away from the first housing 111. The first preset position 81 is the end of the slide rail 6 close to the rotating seat 2, and the second preset position 82 is the end of the slide rail 6 away from the rotating seat 2.

[0050] When the elastic piece 4 is in the second preset position 82, a part of the elastic piece 4 is located outside the outer edge of the third housing 131, so that when the third housing 131 is inserted into the charging device 92, the elastic piece 4 can be pushed into the first preset position 81 by the charging device 92.

[0051] When the first housing 111 of the European standard adapter is inserted into the charging gun 91, at this time, the locking buckle 35 and the groove 45 on the charging gun 91 are opposite. Then, the third housing 131 is inserted into the charging device 92. The charging device 92 is a European standard charging port and has an electronic lock 93, which can lock the third housing 131 of the European standard adapter. During the process of inserting the third housing 131 into the charging device 92, the housing of the charging device 92 pushes the elastic piece 4 to move to the first preset position 81. At this time, the elastic piece 4 can drive the button 34 to move upward, and the first step plate 31 and the locking buckle 35 thereon move downward, so that the locking buckle 35 enters the groove 45. When the electronic lock 93 of the charging port is not unlocked, the charging gun 91, the European standard adapter and the electronic lock 93 form an integral body to ensure the charging effect. After the electronic lock 93 of the charging port is unlocked, the adapter and the charging gun 91 are pulled out together. At this time, the second reset member 52 pushes the elastic piece 4 to move to the second preset position 82. The user only needs to press the second end, and the locking buckle 35 will disengage from the charging gun 91 to achieve unlocking, without the customer having to open the car door and then press the unlocking button. The utility model does not require the customer to enter the vehicle body, and the charging gun 91 and the adapter can be unlocked outside the vehicle.

[0052] As an example, the first side plate 21 and the second side plate 22 are parallel and opposite to each other. The second housing 121 is further provided with a third side plate 23. The third side plate 23 is arranged between the first side plate 21 and the second side plate 22. The third side plate 23 is perpendicular to the first side plate 21. The third side plate 23 is provided with a jack 24. The jack 24 penetrates through the third side plate 23 along the second direction 200. The lock plate 3 is inserted through the jack 24. The width of the jack 24 along the third direction 300 is greater than the thickness of the lock plate 3, so that the lock plate 3 can rotate in the jack 24.

[0053] As an example, the lock plate 3 includes a first step plate 31, a second step plate 32, a third step plate 33 and a button 34. The first step plate 31 is the first end of the lock plate 3, and the button 34 is the second end of the lock plate 3. The first step plate 31 and the third step plate 33 are arranged at both ends of the second step plate 32. One end of the third step plate 33 far from the second step plate 32 is connected to the button 34. The first step plate 31, the second step plate 32, the third step plate 33 and the button 34 are gradually away from the base so that the lock plate 3 is in a stepped shape. The locking buckle 35 is arranged on the first step plate 31, and the through hole is arranged on the second step plate 32.

[0054] The first step plate 31 is inserted into the jack 24. At this time, the thickness of the first step plate 31 in the third direction 300 is less than the width of the jack 24 in the third direction 300, so that the first step plate 31 will not be obstructed by the jack 24 when rotating. The first reset member 51 is disposed between the button 34 and the base, and two ends of the first reset member 51 are respectively connected to the button 34 and the base.

[0055] As an example, the slide rail 6 is disposed on one side of the second housing 121 close to the third housing 131. The slide rail 6 includes a first folded edge 63, a second folded edge 64, a first rail plate 61, and a second rail plate 62. The first rail plate 61 and the second rail plate 62 are oppositely disposed on the second housing 121. The first folded edge 63 is bent from a side of the first rail plate 61 away from the second housing 121 toward the second rail plate 62, and the second folded edge 64 is bent from a side of the second rail plate 62 away from the second housing 121 toward the first rail plate 61.

[0056] In this embodiment, the first folded edge 63 and the second folded edge 64 are spaced apart and do not abut against each other. The first folded edge 63, the second folded edge 64, the first rail plate 61, and the second rail plate 62 form a cavity for the elastic sheet 4 to slide, and the length direction of the cavity is the second direction 200.

[0057] As an example, the elastic sheet 4 includes a lapping portion 43, a first end portion 41, and a second end portion 42. The first end portion 41 and the second end portion 42 are disposed on a side of the second end portion 42 close to the first preset position 81. There are two second reset members 52. One second reset member 52 is disposed between the first end portion 41 and the rotating seat 2, and the other second reset member 52 is disposed between the second end portion 42 and the rotating seat 2;

[0058] The first end portion 41 and the second end portion 42 are spaced apart to form the avoidance groove 44. The opposite sides of the first end portion 41 and the second end portion 42 are recessed toward the base to form a groove 45, and the groove 45 communicates with the avoidance groove 44.

[0059] When the elastic sheet 4 is in the second preset position 82, the button 34 can enter the groove 45, so that the button 34 can rotate. In other words, when the elastic sheet 4 is in the second preset position 82, the lock plate 3 can still rotate without interference.

[0060] However, when the spring 4 moves from the second preset position 82 to the first preset position 81, the button 34 moves out of the groove 45 and overlaps the overlap portion 43. The gap between the button 34 and the second housing 121 is embedded by the overlap portion 43, so that the button 34 cannot rotate.

[0061] As an example, in the direction away from the first preset position 81, the width of the overlap portion 43 in the first direction 100 gradually decreases; an annular protrusion 131 is arranged around the third shell 131, and the annular protrusion 131 is arranged with a notch 132, and the notch 132 is directly opposite to the spring piece 4, and in the direction away from the first preset position 81, the width of the notch 132 in the first direction 100 gradually decreases, and the minimum width of the notch 132 is greater than the minimum width of the overlap portion 43, so that the overlap portion 43 can pass through the notch 132 in the direction away from the first preset position 81. The notch 132 is used to stop the spring piece 4 from detaching from the slide rail 6, and the notch 132 is mainly to prevent the spring piece 4 from detaching from the slide rail 6 and sliding between the first preset position 81 and the second preset position 82.

[0062] The working principle of the European standard adapter of the embodiment of the utility model is as follows: first, insert the first shell 111 into the charging gun 91. At this time, the lock buckle 35 and the groove 45 on the charging gun 91 are opposite to each other, and then insert the third shell 131 into the charging device 92. The shell of the charging device 92 pushes the spring piece 4 to move to the first preset position 81. At this time, the spring piece 4 can drive the button 34 to move upward, and the first step plate 31 and the lock buckle 35 thereon move downward, so that the lock buckle 35 enters the groove 45. When the European standard adapter is not unplugged from the charging device 92, the charging gun 91 and the European standard adapter maintain a snap connection.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A locking structure, characterized in that: It includes a rotating seat, a base, a locking plate, a spring, a slide rail, a first reset member and a second reset member, wherein the slide rail and the rotating seat are arranged on the base; The lock plate has a first end and a second end opposite to each other along its length direction, a middle portion of the lock plate in the length direction is rotatably connected to the rotating seat, a rotation axis of the lock plate extends along a first direction, a lock buckle is provided on the first end, and the lock buckle is used to be snap-connected with a first external device; The first reset member is disposed between the base and the locking plate, and the first end has a tendency to move toward the base under the action of the first reset member; The slide rail extends along the second direction, the elastic sheet is slidably connected to the slide rail, the elastic sheet can slide between a first preset position and a second preset position, and when the elastic sheet enters the first preset position from the second preset position, the elastic sheet gradually enters the gap between the second end and the base; The elastic sheet has a tendency to move away from the first preset position under the action of the second restoring member; There is a non-zero angle between the first direction and the second direction.

2. The locking structure according to claim 1, characterized in that: The first restoring member is a spring, one end of the first restoring member is connected to the base, and the other end of the first restoring member is connected to the second end. The spring sheet is provided with an avoidance groove, and the avoidance groove is used to avoid the first restoring member.

3. The locking structure according to claim 1, characterized in that: The second return member is a spring, and the second return member is retracted along the third direction; one end of the second return member is connected to the spring, and the other end of the second return member is connected to the rotating seat, the base or the slide rail, and the second return member is retracted along the first direction; The first direction, the second direction and the third direction are perpendicular to each other.

4. The locking structure according to claim 2, characterized in that: It also includes a rotating bolt and a nut, the rotating bolt includes a bolt head, a smooth section and a threaded section, the bolt head and the threaded section are respectively arranged at two ends of the smooth section, the bolt head and the threaded section are located outside the rotating seat, the nut is threadedly connected to the threaded section, a through hole is arranged on the locking plate, the central axis of the through hole extends along the first direction, and the smooth section is penetrated through the locking plate and the rotating seat.

5. A European standard adapter, characterized in that: The invention comprises a housing and the locking structure according to claim 4, wherein the housing comprises a first housing, a second housing and a third housing connected in sequence along a second direction, an outer edge of the first housing and an outer edge of the third housing are both located within an outer edge of the second housing, the first housing is used to connect to a charging gun, and the third housing is used to connect to a charging device; The second shell constitutes the base, the second shell is provided with a first side plate and a second side plate at intervals, the first side plate and the second side plate constitute the rotating seat, the lock plate is provided between the first side plate and the second side plate, the first end extends to the outside of the outer edge of the first shell, the lock buckle is provided toward the center of the first shell, and the slide rail is provided on the second shell; When the elastic sheet is in the second preset position, a portion of the elastic sheet is located outside the outer edge of the third shell, so that when the third shell is inserted into the charging device, the elastic sheet can be pushed into the first preset position by the charging device.

6. The European standard adapter according to claim 5, characterized in that: The second shell is also provided with a third side plate, the third side plate is provided between the first side plate and the second side plate, the third side plate is perpendicular to the first side plate, the third side plate is provided with a plug hole, the plug hole passes through the third side plate along the second direction, and the lock plate is passed through the plug hole.

7. The European standard adapter according to claim 6, characterized in that: The lock plate includes a first step plate, a second step plate, a third step plate and a button, the first step plate and the third step plate are arranged at both ends of the second step plate, the end of the third step plate away from the second step plate is connected to the button, the first step plate, the second step plate, the third step plate and the button gradually move away from the base to make the lock plate present a step shape, the lock buckle is arranged on the first step plate, the through hole is arranged on the second step plate, the first step plate is penetrated by the jack, and the first reset member is arranged between the button and the base.

8. The European standard adapter according to claim 5, characterized in that: The slide rail is arranged on a side of the second shell close to the third shell, and the slide rail includes a first folded edge, a second folded edge, a first track plate and a second track plate. The first track plate and the second track plate are relatively arranged on the second shell, and the first folded edge is formed by bending the side of the first track plate away from the second shell toward the second track plate, and the second folded edge is formed by bending the side of the second track plate away from the second shell toward the first track plate.

9. The European standard adapter according to claim 7, characterized in that: The elastic sheet includes a lap portion, a first end portion, and a second end portion, wherein the first end portion and the second end portion are arranged at a side of the second end portion close to the first preset position, and two second return members are provided, one second return member is arranged between the first end portion and the rotating seat, and the other second return member is arranged between the second end portion and the rotating seat; The first end and the second end are spaced apart to form the avoidance groove, and the first end and the second end facing each other are recessed toward the base to form a groove, the groove is connected to the avoidance groove, and when the spring sheet is in the second preset position, the button can enter the groove; When the spring sheet moves from the second preset position to the first preset position, the button moves out of the groove and overlaps the overlapping portion.

10. The European standard adapter according to claim 9, characterized in that: In a direction away from the first preset position, the width of the overlapping portion along the first direction gradually decreases; An annular protrusion is arranged around the third shell, and the annular protrusion is provided with a notch. The notch is opposite to the spring piece, and the width of the notch along the first direction gradually decreases in the direction away from the first preset position. The minimum width of the notch is greater than the minimum width of the overlapping portion, so that the overlapping portion can pass through the notch in the direction away from the first preset position.

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