German standard socket

Abstract

The utility model relates to a German standard socket, and relates to the technical field of sockets, the German standard socket comprises a shell, a shell seat, a shell cover installed on the shell seat and a conductive assembly located in the shell seat, and the side face, away from the shell seat, of the shell cover is provided with a limiting cavity for insertion of a plug; a copper sheet body and abutting sheets fixedly arranged at the two ends of the copper sheet body are installed between the shell cover and the shell base, the abutting sheets are bent in the direction close to the shell cover, and the side faces, close to each other, of the two abutting sheets are each provided with a bent part; the shell cover is provided with a limiting through groove for the bending part to penetrate through and extend into the limiting cavity. The side face, facing the shell, of the shell cover is provided with a limiting notch for the end of the abutting piece to be clamped in and slide. The bending part can abut against the grounding part of the plug, and the limiting gap is used for limiting the movement stroke of the abutting sheet when the abutting sheet is pressed. According to the invention, the possibility of loosening or poor contact caused by temperature change or improper plugging is reduced, and the corresponding safety performance is improved.

Description

Technical Field

[0001] This application relates to the technical field of sockets, and in particular to a German standard socket. Background Art

[0002] The German standard socket, also known as the "German plug", is a power socket that complies with the German standard in Europe. This kind of socket is widely used in Europe and some African countries and has become a common power socket standard. It not only has the basic power supply function, but also has developed various functional socket types to meet the usage requirements in different scenarios.

[0003] In the related art, a German standard socket includes a socket body, a housing, two circular jacks, a grounding copper sheet arranged inside, and conductive sheets that precisely correspond to the jacks; when the plug is correctly inserted into the socket, the grounding part of the plug is in close contact with the grounding copper sheet, effectively realizing the grounding protection of the circuit and ensuring the safety of electricity use.

[0004] However, during the use of the socket, it will experience temperature changes, especially in some extreme environments, such as high-temperature or low-temperature environments. Such temperature changes may cause the thermal expansion and contraction of the grounding copper sheet; in addition, when the user plugs and unpluggs the plug, if the force is too strong or the method is improper, it may cause impact or distortion to the grounding copper sheet; both may cause the grounding copper sheet and the grounding part of the plug to become loose or have poor contact when they are in contact, posing a safety hazard. Summary of the Utility Model

[0005] The purpose of this application is to provide a German standard socket to solve the problem that the grounding copper sheet may become loose or have poor contact with the grounding part of the plug when they are in contact in the above-mentioned related art.

[0006] A German standard socket provided by this application adopts the following technical solutions:

[0007] A German standard socket includes a housing, a socket base located inside the housing, a socket cover installed on the socket base, and a conductive component located inside the socket base. A limiting cavity for the plug to be inserted is provided on the side of the socket cover away from the socket base; a copper sheet body and abutting pieces fixed at both ends of the copper sheet body are installed between the socket cover and the socket base. The abutting pieces are bent towards the direction close to the socket cover, and bending parts are provided on the mutually approaching sides of the two abutting pieces; a limiting through groove for the bending part to penetrate and extend into the limiting cavity is opened on the socket cover, and a limiting notch for the end part of the abutting piece to be inserted and slide is opened on the side of the socket cover facing the housing; the bending part can abut tightly against the grounding part of the plug, and the limiting notch is used to limit the moving stroke of the abutting piece when it is pressed.

[0008] By adopting the above technical solution, when the plug is plugged and mated with the socket, the main body of the plug is inserted into the limiting cavity of the shell cover at this time. Meanwhile, the plug core on the plug penetrates through the jack and is electrically connected to the conductive component, and the abutting piece will retreat backward. Under the limitation of the limiting notch, the mutually approaching sides of the two bending parts are elastically abutted against the grounding part of the plug, improving the stability when the two are abutted, reducing the possibility of loosening or poor contact caused by temperature change or improper plugging, that is, reducing the possibility of loosening or poor contact between the abutting piece and the grounding part of the plug, and improving the corresponding safety performance.

[0009] Optionally, a locking member is provided on the side surface of the outer shell. The locking member includes a pressing plate, a locking screw, a claw and a reset member. Two symmetrically arranged extension plates extending into the outer shell are fixedly provided on the pressing plate, and the extension plates are fixedly connected to the shell base; a fixing ear is fixedly provided on the extension plate, a locking screw hole is opened on the fixing ear, and a locking through hole capable of coinciding with the locking screw hole is opened on the claw, and the locking screw penetrates through the locking screw hole and is screwed into the locking through hole; the reset member is located between the fixing ear and the claw, and a clamping portion bent toward the bottom side of the outer shell is fixedly provided at one end of the claw; under the fastening force of the locking screw and the restoring force of the reset member, the clamping portion is in interference fit with the inner wall of the outer shell.

[0010] By adopting the above technical solution, when it is necessary to assemble and fix the shell base and the outer shell, under the action of the fastening force of the locking screw and the restoring force of the reset member, the clamping portion of the claw is in interference fit with the inner wall of the outer shell, thereby realizing the detachable assembly and fixation of the shell base and the outer shell.

[0011] Optionally, the reset member is a reset spring sleeved on the outer periphery of the locking screw, and the two ends of the reset spring are respectively abutted against the mutually approaching side surfaces of the claw and the fixing ear.

[0012] By adopting the above technical solution, due to the installation of the reset spring, when the shell base and the outer shell are assembled and fixed, the clamping portion of the claw can be in interference fit with the inner wall of the outer shell, improving the stability during the assembly of the shell base and the outer shell.

[0013] Optionally, a positioning convex ring is fixedly provided on the side surface of the fixing ear away from the pressing plate around the opening edge of the locking screw hole, and a positioning through hole for the positioning convex ring to insert is opened on the shell base.

[0014] By adopting the above technical solution, when the fixing ear is relatively fixed to the shell base, due to the matching setting of the positioning convex ring and the positioning through hole, the positioning convex ring on the fixing ear is inserted into the corresponding positioning through hole, thereby improving its corresponding assembly stability.

[0015] Optionally, a flanging is fixedly provided on the side edge of the extension plate away from the pressing plate, and a limiting sunk groove for the flanging to insert is opened on the shell base.

[0016] By adopting the above technical solution, when the extension plate is assembled and fixed to the housing base, the flange on the extension plate is inserted into the limiting sunk groove, so as to facilitate the installation and cooperation between the extension plate and the housing base.

[0017] Optionally, a bent portion is fixedly provided on the copper sheet body. The bent portion is bent towards the bottom side of the housing base. A receiving cavity is provided on the bent portion, and a plurality of grounding sheets are fixedly provided in the receiving cavity. A first grounding through hole is provided on the bent portion, and a second grounding through hole coinciding with the first grounding through hole is provided on the housing base. The external grounding terminal can be inserted into the grounding sheet and locked after passing through the second grounding through hole and the first grounding through hole in sequence.

[0018] By adopting the above technical solution, the external grounding terminal can be inserted into the receiving cavity after passing through the second grounding through hole and the first grounding through hole in sequence and locked with the grounding sheet, so as to realize the quick insertion of the external grounding terminal and the socket.

[0019] Optionally, a first guiding through groove is provided on the housing base, a second guiding through groove is provided on the bent portion, an adjusting plate is provided outside the housing base, and an adjusting convex block passing through the first guiding through groove and the second guiding through groove is fixedly provided on one side of the adjusting plate. The adjusting convex block is used to release the locking state of the grounding sheet with the grounding terminal.

[0020] By adopting the above technical solution, due to the arrangement of the adjusting plate and the adjusting convex block, pressing the adjusting plate drives the adjusting convex block to extrude the grounding sheet, thereby releasing the clamping and locking of the grounding sheet and the grounding terminal.

[0021] Optionally, the side surface of the adjusting plate fits with the inner walls of the first guiding through groove and the second guiding through groove, and the adjusting plate reciprocates along the first guiding through groove and the second guiding through groove. A plurality of anti-slip convex strips for clamping with one side edge of the grounding sheet are provided on the side surface of the adjusting convex block away from the adjusting plate. The adjusting convex block can release the clamping and locking of the grounding sheet and the grounding terminal during the sliding process along the second guiding through groove.

[0022] By adopting the above technical solution, due to the arrangement of the adjusting plate and the adjusting convex block, the adjusting convex block can drive the edge of the grounding sheet to slide during the sliding process along the second guiding through groove, thereby releasing the clamping and locking of the grounding sheet and the grounding terminal, so as to facilitate unlocking the locking state of the grounding sheet and the grounding terminal.

[0023] Optionally, the cross-sectional dimensions of the first guiding through groove and the second guiding through groove are larger than the cross-sectional dimensions of the adjusting plate, and the adjusting plate can rotate within the first guiding through groove and the second guiding through groove; a relief notch for the adjusting bump to penetrate is formed on the grounding piece, and abutting bumps are symmetrically fixed on the side surface of the adjusting bump away from the adjusting plate, and the side surface of the grounding piece facing the adjusting plate abuts against the outer side surface of the abutting bump; when the adjusting plate rotates, the abutting bump presses against the grounding piece, and the grounding piece is elastically bent to release the locking of the connection terminal.

[0024] By adopting the above technical solution, since the adjusting plate can rotate within the first guiding through groove and the second guiding through groove, when the adjusting plate rotates, the abutting bump presses against the grounding piece, causing the grounding piece to be elastically bent, thereby releasing the clamping and locking of the connection terminal.

[0025] Optionally, stamping sinking grooves are provided on the mutually approaching side surfaces of the two abutting pieces, and stamping protrusions are provided on the mutually remote side surfaces of the two abutting pieces.

[0026] By adopting the above technical solution, the overall outer surface area of the abutting piece can be increased, thereby improving the heat dissipation performance of the copper sheet main body and the abutting piece.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. When the plug is inserted and mated with the socket, at this time, the main body of the plug is inserted into the limiting cavity of the shell cover, and at the same time, the plug core on the plug penetrates through the jack and is electrically connected to the conductive component, and the abutting piece will retreat backward. Under the limitation of the limiting notch, the mutually approaching side surfaces of the two bending parts are tightly pressed against the grounding part of the plug, thereby reducing the possibility of looseness or poor contact when the abutting piece abuts against the grounding part of the plug, and improving the corresponding safety performance.

[0029] 2. When the extension plate is assembled and fixed with the shell base, the flanging on the extension plate is inserted into the limiting sinking groove, thereby facilitating the installation and mating of the extension plate and the shell base; when it is necessary to assemble and fix the shell base and the outer shell, under the action of the tightening force of the locking screw and the restoring force of the restoring part, the clamping part of the clamping claw is in interference fit with the inner wall of the outer shell, thereby realizing the detachable assembly and fixation of the shell base and the outer shell.

[0030] 3. The externally connected grounding terminal can sequentially penetrate through the second grounding through hole and the first grounding through hole and then be inserted into the accommodating cavity, and be inserted and locked with the grounding piece, thereby realizing the quick insertion of the externally connected grounding terminal and the socket. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0032] Figure 1 is the overall structural schematic diagram of Embodiment 1 of the present application;

[0033] Figure 2 is the exploded structural schematic diagram of Embodiment 1 of the present application;

[0034] Figure 3 is the sectional structural schematic diagram showing the installation and cooperation of the abutting member in Embodiment 1 of the present application;

[0035] Figure 4 is the structural schematic diagram showing the installation and cooperation of the bending part in Embodiment 1 of the present application;

[0036] Figure 5 is the partial sectional structural schematic diagram showing the installation and cooperation of the copper sheet body and the abutting piece in Embodiment 1 of the present application;

[0037] Figure 6 is the structural schematic diagram showing the installation distribution of the locking member in Embodiment 1 of the present application;

[0038] Figure 7 is the sectional structural schematic diagram showing the installation and cooperation of the locking member in Embodiment 1 of the present application;

[0039] Figure 8 is the partial sectional structural schematic diagram showing the installation and cooperation of the flanging and the limiting sunk groove in Embodiment 1 of the present application;

[0040] Figure 9 is the sectional structural schematic diagram showing the installation and cooperation of the adjusting plate in Embodiment 2 of the present application;

[0041] Figure 10 is the structural schematic diagram showing the adjusting plate and the grounding piece in Embodiment 2 of the present application.

[0042] In the figure, 1, shell; 2, shell seat; 21, second grounding through hole; 22, first guide through groove; 23, limit sink groove; 24, positioning through hole; 3, shell cover; 31, limit cavity; 32, plug hole; 33, limit through groove; 34, limit notch; 4, conductive component; 5, grounding piece; 51, copper sheet body; 511, bending part; 512, accommodating cavity; 513, first grounding through hole; 514, second guide through groove; 52, abutment sheet; 521, bending part; 522, stamping sink groove ; 523, stamping protrusion; 53, grounding plate; 531, clearance gap; 6, adjustment plate; 61, adjustment protrusion; 611, abutment protrusion; 62, anti-slip protrusion; 7, locking piece; 71, pressure plate; 711, extension plate; 712, flange; 713, fixing ear; 7131, locking screw hole; 7132, positioning protrusion ring; 72, locking screw; 73, pressure claw; 731, locking through hole; 732, clamping part; 74, reset piece; 741, reset spring; 8, fastening screw. DETAILED DESCRIPTION

[0043] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0044] Embodiment 1:

[0045] Reference Figure 1 and Figure 2 A German standard socket comprises a shell 1, a shell base 2 located in the shell 1, a shell cover 3 installed on the shell base 2 and a conductive component 4 located in the shell base 2, wherein the conductive component 4 is a conventional electrical connection structure and will not be described in detail herein; a side of the shell cover 3 away from the shell base 2 is provided with a limiting cavity 31 for inserting a plug, and at the same time, two jacks 32 corresponding to the conductive component 4 and for inserting two plug cores of the plug are provided on the bottom side of the limiting cavity 31;

[0046] A grounding piece 5 is installed between the shell cover 3 and the shell base 2. When the plug is plugged into the socket, the main body of the plug is inserted into the limiting cavity 31 of the shell cover 3. At the same time, the plug core on the plug passes through the socket 32 and is electrically connected to the conductive component 4. The grounding part on the plug is pressed against the grounding piece 5.

[0047] Reference Figure 3 and Figure 4 The grounding member 5 includes a copper sheet body 51 and abutment sheets 52 integrally formed at both ends of the copper sheet body 51, wherein the copper sheet body 51 is fixedly installed between the shell cover 3 and the shell seat 2, and the two abutment sheets 52 are bent toward the shell cover 3, and the sides of the two abutment sheets 52 close to each other are provided with a bending portion 521;

[0048] The housing cover 3 is provided with a limiting through groove 33 for the bending part 521 to be inserted into the limiting cavity 31. After the bending part 521 penetrates through the limiting through groove 33, it extends into the interior of the limiting cavity 31. A limiting notch 34 for the end of the abutting piece 52 to be inserted and slide is provided on the side of the housing cover 3 facing the housing. When the plug is inserted, the abutting piece 52 will move backward. In order to ensure effective abutment, the maximum stroke of the movement of the abutting piece 52 is limited through the limiting notch 34.

[0049] Refer to Figure 4 , stamping sinking grooves 522 are provided on the mutually approaching sides of the two abutting pieces 52, and stamping protrusions 523 are provided on the mutually departing sides of the two abutting pieces 52. The stamping sinking grooves 522 and the stamping protrusions 523 are formed by stamping equipment, which can increase the outer surface area of the abutting piece 52, thereby improving the heat dissipation performance of the grounding part 5.

[0050] Refer to Figure 4 and Figure 5 , a bending part 511 is integrally formed on the copper sheet body 51. The bending part 511 is bent towards the bottom side of the housing base 2. A receiving cavity 512 is provided on the bending part 511, and a plurality of grounding sheets 53 are installed in the receiving cavity 512. A first grounding through hole 513 is provided on the bending part 511, and a second grounding through hole 21 coinciding with the first grounding through hole 513 is provided on the housing base 2.

[0051] The externally connected grounding terminal can sequentially penetrate through the through hole on the housing 1, the second grounding through hole 21 and the first grounding through hole 513 and then be inserted and locked with the grounding sheet 53, so as to realize the quick insertion of the externally connected grounding terminal and the socket.

[0052] Refer to Figure 3 and Figure 5 , a first guiding through groove 22 is provided on the housing base 2, a second guiding through groove 514 is provided on the bending part 511, an adjusting plate 6 is slidably arranged outside the housing base 2, an adjusting convex block 61 penetrating through the first guiding through groove 22 and the second guiding through groove 514 is integrally formed on one side of the adjusting plate 6, and a part of the outer side surface of the adjusting plate 6 is adapted to and abuts against the inner walls of the first guiding through groove 22 and the second guiding through groove 514, so that it can reciprocally slide along the first guiding through groove 22 and the second guiding through groove 514.

[0053] And a plurality of anti-slip ridges 62 for clamping with one side edge of the grounding sheet 53 are integrally processed on the side of the adjusting convex block 61 away from the adjusting plate 6. During the process of the adjusting convex block 61 sliding along the second guiding through groove 514, it can drive the edge of the grounding sheet 53 to slide, thereby releasing the clamping and locking of the grounding sheet 53 and the grounding terminal, so as to facilitate the locking and unlocking of the grounding sheet 53 and the grounding terminal.

[0054] Refer to Figure 6 andFigure 7 , on the side of the outer shell 1, a locking member 7 is provided, and the locking member 7 includes a pressing plate 71, a locking screw 72, a claw 73 and a reset member 74. Two extension plates 711 extending into the interior of the outer shell 1 are integrally formed on the side of the pressing plate 71. The two extension plates 711 are symmetrically arranged and parallel to each other.

[0055] Refer to Figure 8 , on the side edge of the extension plate 711 away from the pressing plate 71, two flanges 712 are integrally formed. A limiting sunk groove 23 for inserting the flanges 712 is provided on the housing base 2. When the pressing plate 71 and the housing base 2 are assembled, the flanges 712 on the extension plate 711 are inserted into the interior of the limiting sunk groove 23, thereby realizing the installation and cooperation between the extension plate 711 and the housing base 2.

[0056] Refer to Figure 6 and Figure 7 , on the side of the extension plate 711 away from the pressing plate 71, a fixing ear 713 located between the two flanges 712 is integrally formed. A locking screw hole 7131 is provided on the fixing ear 713, and a locking through hole 731 capable of coinciding with the locking screw hole 7131 is provided on the claw 73. The locking screw 72 passes through the locking screw hole 7131 and is screwed into the locking through hole 731; a clamping portion 732 bent towards the bottom side of the outer shell 1 is integrally formed at one end of the claw 73. The reset member 74 is a reset spring 741 sleeved on the outer periphery of the locking screw 72. The two ends of the reset spring 741 respectively abut against the mutually approaching sides of the claw 73 and the fixing ear 713;

[0057] When the locking screw 72 is tightened, at this time the reset spring 741 is in a compressed state. Under the tightening force of the locking screw 72 and the restoring force of the reset spring 741, the clamping portion 732 on the claw 73 is in interference fit with the inner wall of the outer shell 1; thereby realizing the assembly and fixation of the housing base 2 and the outer shell 1. When it is necessary to release the assembly and fixation of the housing base 2 and the outer shell 1, after the locking screw 72 is loosened, the reset spring 741 drives the claw 73 to reset, and further releases the interference fit of the clamping portion 732 on the claw 73 with the inner wall of the outer shell 1.

[0058] Refer to Figure 7 , on the side of the fixing ear 713 away from the pressing plate 71, a positioning convex ring 7132 is fixedly provided around the opening edge of the locking screw hole 7131. A positioning through hole 24 for inserting the positioning convex ring 7132 is provided on the housing base 2. With this setting, when the fixing ear 713 and the housing base 2 are relatively fixed, the positioning convex ring 7132 on the fixing ear 713 is inserted into the corresponding positioning through hole 24, thereby improving its corresponding assembly stability.

[0059] Refer to Figure 7The interior of the shell 1 is also provided with fastening screws 8 for fixing the shell cover 3, the conductive component 4, the grounding member 5 and the shell base 2. The fastening screws 8 pass through the through holes on the shell cover 3 and are screwed into the screw holes on the shell base 2. This is a conventional fastening method and will not be described in detail here.

[0060] The implementation principle of the embodiment of the present application is:

[0061] When the plug is mated with the socket, the main body of the plug is inserted into the limiting cavity 31 of the shell cover 3, and the plug core on the plug passes through the socket 32 and is electrically connected to the conductive component 4, and the abutment piece 52 will retreat backward. Under the limitation of the limiting notch 34, the side surfaces of the two bent portions 521 close to each other are tightly abutted against the grounding part of the plug; when the plug and the socket are unplugged, the abutment piece 52 and the bent portion 521 will automatically reset because the abutment piece has elastic deformation properties.

[0062] Embodiment 2:

[0063] Reference Figure 9 and Figure 10 , the difference between the embodiment of the present application and the embodiment is that the cross-sectional dimensions of the first guide slot 22 and the second guide slot 514 are larger than the cross-sectional dimensions of the adjustment plate 6, so the adjustment plate 6 can rotate within the first guide slot 22 and the second guide slot 514 at a certain angle;

[0064] The grounding sheet 53 is provided with a clearance notch 531 for the adjusting protrusion 61 to pass through, and the side of the adjusting protrusion 61 away from the adjusting plate 6 is symmetrically fixed with abutment protrusions 611, and the abutment protrusions 611 and the adjusting protrusions 61 are integrally formed; the side of the grounding sheet 53 facing the adjusting plate 6 abuts against the outer side of the abutment protrusion 611; when the staff presses the adjusting plate 6 to rotate the adjusting plate 6 upward, the abutment protrusion 611 squeezes the grounding sheet 53, causing the grounding sheet 53 to bend elastically and release the lock on the wiring terminal, and when the pressure stops, the grounding sheet 53 returns to its original state.

[0065] Unless otherwise defined, the terms or scientific terms used in this application shall have the ordinary meanings as understood by those of ordinary skill in the art to which this application pertains. The words "first", "second", "third" and similar words used in the text of this application do not denote any order, quantity or importance, but are only used to distinguish different components. Words such as "a" or "an" do not denote a quantity limitation either, but mean that there is at least one. Words such as "comprising" or "including" mean that the elements or objects appearing before "comprising" or "including" cover the elements or objects listed after "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationships may also change accordingly.

[0066] The embodiments of this specific implementation manner are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. The same components are denoted by the same reference numerals. Therefore, all equivalent changes made according to the structure, shape and principle of this application shall be covered within the protection scope of this application.

Claims

1. A German standard socket, comprising a housing (1), a socket base (2) located inside the housing (1), a socket cover (3) mounted on the socket base (2), and a conductive component (4) located inside the socket base (2). A limiting cavity (31) for plug insertion is provided on the side of the socket cover (3) away from the socket base (2); characterized in that, A copper sheet body (51) and abutting sheets (52) fixed to both ends of the copper sheet body (51) are installed between the shell cover (3) and the shell base (2). The abutting sheets (52) are bent towards the shell cover (3), and bending portions (521) are provided on the side surfaces of the two abutting sheets (52) close to each other. A limiting through groove (33) through which the bending portion (521) penetrates and extends into the limiting cavity (31) is formed in the shell cover (3), and a limiting notch (34) for the end of the abutting sheet (52) to be inserted and slide is formed on the side surface of the shell cover (3) facing the shell body; the bending portion (521) can tightly abut against the grounding part of the plug, and the limiting notch (34) is used for limiting the moving stroke of the abutting sheet (52) when it is pressed.

2. The German standard socket according to claim 1, characterized in that A locking member (7) is provided on the side surface of the outer shell (1). The locking member (7) includes a pressing plate (71), a locking screw (72), a claw (73) and a reset member (74). Two symmetrically arranged extension plates (711) extending into the outer shell (1) are fixed to the pressing plate (71), and the extension plates (711) are fixedly connected to the shell base (2). A fixing ear (713) is fixed to the extension plate (711), a locking screw hole (7131) is formed in the fixing ear (713), a locking through hole (731) capable of coinciding with the locking screw hole (7131) is formed in the claw (73), and the locking screw (72) passes through the locking screw hole (7131) and is screwed into the locking through hole (731). The reset member (74) is located between the fixing ear (713) and the claw (73). A clamping portion (732) bent towards the bottom side of the outer shell (1) is fixed to one end of the claw (73); under the fastening force of the locking screw (72) and the restoring force of the reset member (74), the clamping portion (732) is in interference fit with the inner wall of the outer shell (1).

3. The Deutsch socket according to claim 2, characterized in that, The reset member (74) is a reset spring (741) sleeved on the outer periphery of the locking screw (72), and both ends of the reset spring (741) abut against the side surfaces of the claw (73) and the fixing ear (713) close to each other.

4. A German standard socket according to claim 2, characterized in that, A positioning convex ring (7132) is fixedly arranged on the side surface of the fixing ear (713) far from the pressing plate (71) around the opening edge of the locking screw hole (7131), and a positioning through hole (24) for the positioning convex ring (7132) to be inserted is formed in the shell base (2).

5. The Deutsch socket according to claim 2, characterized in that, A flanging (712) is fixed to the side edge of the extension plate (711) far from the pressing plate (71), and a limiting sunk groove (23) for the flanging (712) to be inserted is formed in the shell base (2).

6. A German standard socket according to claim 1, characterized in that, A bending portion (511) is fixed to the copper sheet body (51). The bending portion (511) is bent towards the bottom side of the shell base (2). A receiving cavity (512) is arranged on the bending portion (511), and a plurality of grounding sheets (53) are fixed in the receiving cavity (512). The bent portion (511) is provided with a first grounding through hole (513), the shell base (2) is provided with a second grounding through hole (21) overlapping with the first grounding through hole (513), and an external grounding terminal can sequentially penetrate the second grounding through hole (21) and the first grounding through hole (513) and then be plugged and locked with the grounding plate (53).

7. A German standard socket according to claim 6, characterized in that The shell seat (2) is provided with a first guide slot (22), the bent portion (511) is provided with a second guide slot (514), an adjustment plate (6) is arranged outside the shell seat (2), and an adjustment protrusion (61) penetrating the first guide slot (22) and the second guide slot (514) is fixed on one side of the adjustment plate (6), and the adjustment protrusion (61) is used to release the locking state of the grounding plate (53) on the grounding terminal.

8. A German standard socket according to claim 7, characterized in that, The side surface of the adjustment plate (6) is in contact with the inner walls of the first guide groove (22) and the second guide groove (514), and the adjustment plate (6) slides back and forth along the first guide groove (22) and the second guide groove (514); A plurality of anti-slip convex strips (62) are provided on the side of the adjustment protrusion (61) away from the adjustment plate (6) and are engaged with the edge of one side of the grounding plate (53). The adjustment protrusion (61) can release the engagement and locking between the grounding plate (53) and the grounding terminal when sliding along the second guide slot (514).

9. A German standard socket according to claim 7, characterized in that, The cross-sectional dimensions of the first guide slot (22) and the second guide slot (514) are greater than the cross-sectional dimensions of the adjustment plate (6), and the adjustment plate (6) is capable of rotating in the first guide slot (22) and the second guide slot (514); The grounding sheet (53) is provided with a clearance notch (531) for the adjusting protrusion (61) to pass through; the side of the adjusting protrusion (61) away from the adjusting plate (6) is symmetrically fixed with abutment protrusions (611); the side of the grounding sheet (53) facing the adjusting plate (6) abuts against the outer side of the abutment protrusion (611); when the adjusting plate (6) rotates, the abutment protrusion (611) presses the grounding sheet (53), and the grounding sheet (53) is elastically bent and releases the lock on the connection terminal.

10. A German standard socket according to claim 1, characterized in that, The sides of the two contact pieces (52) that are close to each other are provided with stamped recessed grooves (522), and the sides of the two contact pieces (52) that are away from each other are provided with stamped protrusions (523).

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