CN113612083A

CN113612083A - Socket adapter

Info

Publication number: CN113612083A
Application number: CN202110792172.7A
Authority: CN
Inventors: 骆德元; 周贻培; 王瑶辉; 徐烽栗
Original assignee: Feilifu Technology Co ltd
Current assignee: Feilifu Technology Co ltd
Priority date: 2021-07-13
Filing date: 2021-07-13
Publication date: 2021-11-05

Abstract

The invention discloses a socket adapter, which comprises a socket body and a positioning disc, wherein the socket body is provided with a positioning hole; the bottom of the positioning disc is provided with a downward convex positioning frame, two conductive rods are rotatably arranged on the positioning disc at the positioning frame, the upper ends of the two conductive rods penetrate through a first through hole at the bottom of the socket body and are respectively suitable for being electrically connected with a zero line terminal and a fire line terminal, and the lower ends of the conductive rods are provided with transversely extending conductive insertion pieces; the socket body is connected with each conducting rod through the linkage of a connecting component, and when the socket body and the positioning disc rotate relatively, the conducting rods are driven to rotate through the connecting component, so that the conducting insertion pieces are converted between the accommodating state in the positioning frame and the working state extending out of the positioning frame. The socket adapter is reasonable in structure, the positioning frame is inserted into the rail groove of the rail during installation, then the socket body is rotated, and when the socket adapter is disassembled, the socket body can be rotated reversely, so that the socket adapter is convenient to operate and has good practicability.

Description

Socket adapter

Technical Field

The invention relates to a socket adapter, in particular to a socket adapter for a rail socket.

Background

Patent document CN112072420A discloses an adapter of a rail socket, which includes: the socket part, the power taking part and the transmission part; the socket portion includes: socket shell, live wire grafting subassembly, zero line grafting subassembly and ground wire grafting subassembly, wherein, transmission portion respectively with socket shell's bottom with get the electricity portion and connect, transmission portion is configured to can with socket shell follows the ascending linear motion of width direction of circular telegram guide rail turns into get the arm with the zero line gets the rotary motion of electric arm around respective center pin.

When the adapter in the above patent document is used, after the live wire power taking arm, the zero line power taking arm and the ground wire power taking arm are inserted into the opening of the electrified guide rail, the socket shell is pushed and pulled to make linear motion, the live wire power taking arm and the zero line power taking arm can be driven to rotate in situ at respective positions, so that the live wire power taking arm and the zero line power taking arm are respectively switched between a power taking position and a non-power taking position, and further the adapter is switched between a power taking state and a non-power taking state in the electrified guide rail. The adapter in the above patent document has a problem in use that the adapter needs to be linearly moved to complete the installation and the removal, so that a certain length of moving space is required on the rail socket to match and install the adapter, and if a plurality of adapters with the structure are installed on the rail socket, the installation may be difficult due to insufficient moving space, and the user experience is poor.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a socket adapter with a reasonable structure so as to solve the problem that the existing socket adapter needs to be moved to be installed and detached when being installed on a rail socket in a matching way.

The technical scheme for realizing the purpose of the invention is as follows:

a socket adapter comprises a socket body and a positioning disc which is rotatably arranged at the bottom of the socket body, wherein a zero line terminal and a live wire terminal are arranged in the socket body;

the bottom of the positioning disc is provided with a downward protruding positioning frame, two conductive rods are rotatably arranged on the positioning disc at the positioning frame, the upper ends of the two conductive rods penetrate through a first through hole at the bottom of the socket body and are respectively suitable for being electrically connected with the zero line terminal and the fire line terminal, and the lower ends of the conductive rods are provided with transversely extending conductive insertion pieces;

the socket body is connected with the conductive rods in a linkage mode through the connecting members, and when the socket body and the positioning disc rotate relatively, the conductive rods are driven to rotate through the connecting members, so that the conductive insertion pieces are switched between a storage state stored in the positioning frame and a working state extending out of the positioning frame.

In the above technical solution, the coupling member is disposed in a gap between the socket body and the positioning plate.

In the above technical solution, the coupling member includes a coupling plate having one end connected to the conductive rod and capable of rotating synchronously, one of the other end of the coupling plate and the bottom of the socket body is provided with a shift lever, the other end of the coupling plate is provided with a shift hole, the shift lever extends into the shift hole, and when the socket body and the positioning plate rotate relatively, the shift lever drives the coupling plate and the conductive rod connected thereto to rotate.

In the above technical solution, one end of the connecting plate is sleeved with the conductive rod through a sleeve hole thereon, the cross section of the sleeve hole is non-circular, and the cross section of the sleeved portion of the conductive rod and the sleeve hole is non-circular matched with the cross section of the sleeve hole.

In the technical scheme, the zero line terminal and the live wire terminal are provided with elastic electric connection parts;

when the conductive insert is in the accommodating state, the upper end of the conductive rod is not contacted with the elastic electric connection part; when the conductive insert is switched to the working state, the upper end of the conductive rod is contacted with the elastic electric connection part.

In the technical scheme, the elastic electric connection part is provided with a first elastic clamping opening for clamping the upper end of the conductive rod.

In the technical scheme, the two current conducting rods are correspondingly connected with the zero line terminal and the live wire terminal through the flexible wires respectively.

In the technical scheme, a ground terminal is further arranged in the socket body, a grounding conductor is arranged at the center of the positioning plate, the upper end of the grounding conductor is penetrated into the bottom of the socket body and electrically connected with the ground terminal, and the lower end of the grounding conductor is extended out of the bottom of the positioning frame.

In the above technical solution, the grounding conductor may be disposed on the positioning plate in a vertically movable manner, and the positioning plate is further provided with an elastic member for providing downward elastic force to the grounding conductor.

In the above technical scheme, the elastic component is a helical compression spring sleeved on the grounding conductor, the upper end of the elastic component abuts against the positioning disc, and the lower end of the elastic component abuts against the grounding conductor.

In the above technical scheme, a second elastic clamping opening is arranged on the ground terminal, and the upper end of the ground conductor extends into the second elastic clamping opening.

In the technical scheme, the positioning disc is formed by connecting an outer disc with a positioning middle hole and an inner disc positioned in the positioning middle hole, the outer disc is used for limiting and installing the inner disc at the bottom of the socket body, the positioning frame comprises a U-shaped part integrally formed on the outer disc and a positioning part integrally formed on the inner disc, the positioning part is positioned on the inner side of the U-shaped part, and an accommodating groove for accommodating the conductive insertion piece is formed between the positioning part and the U-shaped part;

the conducting rod and the grounding conductor are respectively installed in the first positioning hole and the second positioning hole in a positioning mode, and the lower portions of the conducting rod and the grounding conductor are provided with abutting portions supported on the U-shaped portion.

In the technical scheme, the inner periphery of the positioning middle hole on the outer disc is provided with an embedding groove, and the outer periphery of the inner disc is embedded into the embedding groove;

the upper end of the inner disc is provided with a supporting boss which is abutted against the bottom wall of the socket body, and the bottom end of the positioning part is abutted against the inner bottom wall of the U-shaped part.

In the technical scheme, the bottom end of the conductive rod is provided with the positioning cylinder, and the inner bottom wall of the U-shaped part is provided with the positioning circular groove matched with the positioning cylinder.

Among the above-mentioned technical scheme, outer set edge is equipped with two at least pothooks, socket ontology bottom department corresponds and is equipped with two at least arc card holes, and two at least pothooks constitute rotation connection structure with the arc border joint in corresponding arc card hole respectively.

The invention has the beneficial effects that: when the adapter is used, the positioning frame is inserted into a track groove of a track socket under the state that the conductive inserting sheet is stored, then the socket body is rotated for a certain angle (the rotation angle is usually 90 degrees), the conductive rod is driven to rotate through the connecting component in the relative rotation process of the socket body and the positioning disc, the conductive inserting sheet on the socket body is further driven to rotate into the corresponding conductive inserting sleeve in the track socket to form electric connection, namely, the conductive inserting sheet is converted to the working state from the storage state, when the adapter is disassembled, the socket body is rotated reversely, the conductive inserting sheet is stored into the positioning frame in a rotating mode, namely, the conductive inserting sheet is converted to the storage state from the working state, then the adapter can be pulled out, the adapter does not need to reserve a length space on the track socket during installation and disassembly, only the socket body needs to be rotated in situ, and user experience is improved.

Drawings

In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. In the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a perspective view of a receptacle adapter of the present invention;

FIG. 2 is a block diagram of the receptacle adapter shown in FIG. 1 viewed from another angle;

FIG. 3 is a top view of the receptacle adapter of FIG. 1;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is a view showing an internal structure of the socket body according to the present invention;

FIG. 6 is a structural view of the socket body according to the present invention;

FIG. 7 is a view of the socket adapter of the present invention with the socket body removed;

figure 8 is an exploded view of the assembly shown in figure 7.

The reference symbols shown in the figures are: 1-a socket body; 2-positioning the disc; 3-a neutral terminal; 4-a fire wire terminal; 5-a positioning frame; 6-a conductive rod; 7-conductive inserts; 8-a tie plate; 9-a deflector rod; 10-poking holes; 11-trepanning; 12-a first resilient jaw; 13-a ground conductor; 14-a ground terminal; 15-a helical compression spring; 16-a second elastic nip; 17-an outer disc; 18-positioning the mesopores; 19-inner disc; 20-U-shaped portion; 21-a positioning section; 22-accommodating grooves; 23-a first locating hole; 24-a second positioning hole; 25-a resisting part; 26-caulking groove; 27-supporting a boss; 28-positioning cylinder; 29-positioning the circular groove; 30-hook; 31-arc-shaped clamping hole.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.

As shown in fig. 1 to 3: the socket adapter comprises a socket body 1 and a positioning disc 2 which is rotatably arranged at the bottom of the socket body 1, wherein a zero line terminal 3 and a live wire terminal 4 are arranged in the socket body 1; the bottom of the positioning disc 2 is provided with a positioning frame 5 protruding downwards, two current-conducting rods 6 are rotatably arranged on the positioning disc 2 at the position of the positioning frame 5, the upper ends of the two current-conducting rods 6 penetrate through a first through hole at the bottom of the socket body 1 and are respectively suitable for being electrically connected with the zero line terminal 3 and the fire line terminal 4, and the lower end of each current-conducting rod 6 is provided with a transversely extending current-conducting insertion piece 7; the socket body 1 is connected with the conductive rods 6 in a linkage mode through the connecting members, and when the socket body 1 and the positioning disc 2 rotate relatively, the conductive rods 6 are driven to rotate through the connecting members, so that the conductive insertion pieces 7 are switched between a storage state of being stored in the positioning frame 5 and a working state of extending out of the positioning frame 5. When the adapter in the embodiment is used, the positioning frame 5 is inserted into the track groove of the track socket under the state that the conductive inserting sheet 7 is in the accommodating state, then the socket body 1 is rotated for a certain angle (the rotation angle is usually 90 degrees), the socket body 1 and the positioning plate 2 are driven to rotate by the connecting component in the relative rotation process, thereby driving the conductive insert 7 thereon to rotate to the corresponding conductive insert in the track socket to form electrical connection, that is, the conductive insert 7 is switched from the storage state to the working state, when being disassembled, the socket body 1 is rotated reversely, the conductive inserting sheet is rotated and stored in the positioning frame 5, the conductive inserting sheet 7 is switched from the working state to the storage state, and then the adapter can be pulled out, the adapter does not need to reserve a length space on the track socket during installation and disassembly, and only needs to rotate the socket body in the original position, so that the user experience is improved. The adapter in this embodiment may be a two-hole socket module, a three-hole socket module, a five-hole socket module, a USB socket module, or the like.

Referring to fig. 4, in the present embodiment, the coupling member is disposed in the gap between the socket body 1 and the puck 2 to facilitate the assembly operation.

Still further, the coupling member includes a coupling plate 8 having one end connected to the conductive rod 6 and capable of rotating synchronously, one of the other end of the coupling plate 8 and the bottom of the socket body 1 is provided with a shift lever 9, the other end of the coupling plate is provided with a shift hole 10, the shift lever 9 extends into the shift hole 10, when the socket body 1 and the positioning plate 2 rotate relatively, the shift lever 9 drives the coupling plate 8 and the conductive rod 6 connected thereto to rotate, by adopting the above structure, the socket body 1 and the positioning plate 2 rotate relatively when in use, and in the process, the shift lever 9 pushes the coupling plate 8 to rotate, so as to drive the conductive rod 6 and the conductive insert 7 connected to the coupling plate 8 to rotate together, and the coupling member has few components, simple structure, and easy realization and assembly.

As a further improvement of the above embodiment, referring to fig. 7 and 8, one end of the connecting plate 8 is sleeved with the conductive rod 6 through a sleeve hole 11 on the connecting plate, the cross section of the sleeve hole 11 is non-circular, the cross section of the sleeved portion of the conductive rod 6, which is sleeved with the sleeve hole 11, is non-circular matched with the cross section of the sleeve hole 11, the sleeve hole 11 on the connecting plate 8 is in inserting fit with the conductive rod 6 to realize linkage connection of the two, the connecting plate 8 can drive the conductive rod 6 to rotate synchronously when rotating, and the sleeve hole and the sleeved portion of the conductive rod are non-circular matched to realize connection of the two.

As a preferable scheme in the present embodiment, referring to fig. 4 and 5, in the present embodiment, an elastic electric connection portion is provided on the neutral terminal 3 and the live terminal 4; when the conductive insert 7 is in the accommodating state, the upper end of the conductive rod 6 is not contacted with the elastic electric connection part; work as conductive insert 7 convert extremely during operating condition, the contact of the 6 upper ends of conducting rod with elasticity power connection portion, because but relative rotation is connected between socket ontology 1 and the positioning disk, consequently conducting rod 6 rotates along with the positioning disk when taking place relative rotation to with zero line terminal/relative displacement takes place between the live wire terminal, through setting up the contact of conducting insert 7 when operating condition corresponds the position 6 sides of conducting rod and corresponding elasticity power connection portion realize the electricity and be connected, and conducting rod 6 contacts because of not connecting with corresponding elasticity power connection portion under other states, consequently can ensure that the circuit is in the uncharged state of opening circuit, guarantee safety in utilization.

Still further, the elasticity connects the electric portion and has the first elasticity that supplies the conducting rod 6 upper end card to go into and press from both sides mouthful 12, presss from both sides tightly through first elasticity and presss from both sides mouthful 12 the conducting rod 6 realizes the electricity and connects, connects effectively fast.

As a modification of the above embodiment, the two current-conducting rods 6 are respectively and correspondingly connected with the zero line terminal 3 and the live line terminal 4 through flexible wires, and in this embodiment, the two current-conducting rods 6 are always and correspondingly and electrically connected with the zero line terminal 3 and the live line terminal 4.

As a preferred example in this embodiment, in order to increase the grounding function, in this embodiment, a ground terminal 14 is further provided in the socket body 1, obviously, a ground spring is further provided in the socket body 1, the ground spring is in plug-in fit with the ground terminal on the mating plug, the ground spring is electrically connected to the ground terminal 14, a grounding conductor 13 is provided at the center of the positioning plate 2, the upper end of the grounding conductor 13 is inserted from the bottom of the socket body 1 and electrically connected to the ground terminal 14, and the lower end of the grounding conductor 13 is extended from the bottom of the positioning frame 5; when the socket adapter is used, after the positioning frame is inserted into the track groove of the track socket, the lower end of the grounding conductor 13 abuts against the grounding sheet in the track socket so as to realize grounding connection.

Further, in this embodiment, the grounding conductor 13 can be vertically moved and disposed on the positioning plate 2, and the positioning plate 2 is further provided with an elastic component for providing a downward elastic force to the grounding conductor 13, that is, the grounding conductor 13 keeps a downward movement trend under the elastic force of the elastic component, so that when the adapter is mounted on the rail socket, the grounding conductor 13 elastically collides with a grounding piece in the rail socket, thereby ensuring the stability and effectiveness of connection between the two.

Still further, the elastic component in this embodiment is a helical compression spring 15 sleeved on the ground conductor 13, and the upper end of the elastic component abuts against the positioning plate 2, and the lower end of the elastic component abuts against the ground conductor 13.

More specifically, a second elastic clamping opening 16 is arranged on the ground terminal 14, the upper end of the ground conductor 13 extends into the second elastic clamping opening 16, the ground terminal 14 is clamped through the second elastic clamping opening 16, so that the ground terminal 14 and the ground terminal are tightly connected, and the electric connection is quick and effective.

As still another preferable solution in the present embodiment, as shown in fig. 4, 7 and 8, the positioning plate 2 is formed by connecting an outer plate 17 having a positioning central hole 18 and an inner plate 19 positioned in the positioning central hole 18, the outer plate 17 limits and mounts the inner plate 19 at the bottom of the socket body 1, the positioning frame 5 includes a U-shaped portion 20 integrally formed on the outer plate 17 and a positioning portion 21 integrally formed on the inner plate 19, the positioning portion 21 is located inside the U-shaped portion 20, and a receiving groove 22 for receiving the conductive insertion piece 7 is formed between the positioning portion 21 and the U-shaped portion 20; the positioning part 21 is provided with a first positioning hole 23 and a second positioning hole 24, the conductive rod 6 and the grounding conductor 13 are respectively positioned and installed in the first positioning hole 23 and the second positioning hole 24, and the lower parts of the conductive rod 6 and the grounding conductor 13 are provided with a resisting part 25 supported on the U-shaped part 20.

Specifically, the outer disk 17 is provided with a caulking groove 26 at the inner peripheral edge of the positioning middle hole 18, and the outer peripheral edge of the inner disk 19 is embedded in the caulking groove 26; the upper end of the inner disc 19 is provided with a supporting boss 27 which is abutted against the bottom wall of the socket body 1, the bottom end of the positioning part 21 is abutted against the inner bottom wall of the U-shaped part 20, the peripheral shape of the positioning middle hole 18 is matched with the peripheral shape of the inner disc 19 and is non-circular, so that relative rotation is avoided after the two are assembled, when the two are assembled, the periphery of the inner disc 19 is embedded into the embedded groove 26 of the outer disc 17 to form primary positioning for the inner disc, then the outer disc 17 is connected with the socket body, and the supporting boss 27 on the inner disc 19 is abutted against the bottom wall of the socket body.

In this embodiment, the bottom end of the current-conducting rod 6 is provided with a positioning cylinder 28, a positioning circular groove 29 matched with the positioning cylinder 28 is formed on the inner bottom wall of the U-shaped portion 20, and a better positioning effect can be achieved on the current-conducting rod through the matching of the positioning cylinder 28 and the positioning circular groove 29.

In this embodiment, outer 17 edges are equipped with two at least pothooks 30, socket body 1 bottom department corresponds and is equipped with two at least arc card holes 31, and two at least pothooks 30 constitute with the arc border joint in corresponding arc card hole 31 respectively and rotate connection structure, can the high-speed joint equipment through pothook 30 and arc card hole 31's arc border joint, pothook 30 is in rotation angle in the arc card hole 31 can restrict the relative rotation angle between socket body and the positioning disk.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims

1. A socket adapter comprises a socket body (1) and a positioning disc (2) rotatably mounted at the bottom of the socket body (1), wherein a zero line terminal (3) and a live line terminal (4) are arranged in the socket body (1);

the bottom of the positioning disc (2) is provided with a positioning frame (5) protruding downwards, two current-conducting rods (6) are rotatably arranged on the positioning disc (2) at the position of the positioning frame (5), the upper ends of the two current-conducting rods (6) penetrate through a first through hole at the bottom of the socket body (1) and are respectively suitable for being electrically connected with the zero line terminal (3) and the live line terminal (4), and the lower end of each current-conducting rod (6) is provided with a transversely extending current-conducting inserting piece (7);

the socket is characterized in that the socket body (1) is in linkage connection with the conductive rods (6) through a connecting component, and when the socket body (1) and the positioning disc (2) rotate relatively, the conductive rods (6) are driven to rotate through the connecting component, so that the conductive inserting pieces (7) are switched between a storage state stored in the positioning frame (5) and a working state extending out of the positioning frame (5).

2. The socket adapter according to claim 1, wherein the coupling member is provided in a gap between the socket body (1) and the puck (2).

3. The socket adapter according to claim 2, wherein the coupling member comprises a coupling plate (8) having one end connected to the conductive rod (6) and capable of rotating synchronously, one of the other end of the coupling plate (8) and the bottom of the socket body (1) is provided with a shift lever (9), the other end of the coupling plate is provided with a shift hole (10), the shift lever (9) extends into the shift hole (10), and when the socket body (1) and the positioning plate (2) rotate relatively, the shift lever (9) drives the coupling plate (8) and the conductive rod (6) connected therewith to rotate.

4. The socket adapter according to claim 3, wherein one end of the linking plate (8) is sleeved with the current conducting rod (6) through a sleeve hole (11) on the linking plate, the cross section of the sleeve hole (11) is non-circular, and the cross section of the sleeved part of the current conducting rod (6) and the sleeve hole (11) is non-circular matched with the cross section of the sleeve hole (11).

5. The socket adapter according to claim 1, wherein the neutral terminal (3) and the live terminal (4) are provided with resilient electrical connections;

when the conductive insert (7) is in the accommodating state, the upper end of the conductive rod (6) is not contacted with the elastic electric connection part; when the conductive insert (7) is switched to the working state, the upper end of the conductive rod (6) is contacted with the elastic electric connection part.

6. A socket adapter according to claim 5, wherein the resilient electrical connection part has a first resilient clip opening (12) into which the upper end of the contact rod (6) is snapped.

7. A socket adapter according to claim 1, wherein the two current-conducting bars (6) are connected correspondingly to the neutral terminal (3) and the live terminal (4) respectively by means of flexible wires.

8. The socket adapter according to claim 1, wherein a ground terminal (14) is further provided in the socket body (1), a ground conductor (13) is provided at the center of the positioning plate (2), the upper end of the ground conductor (13) penetrates from the bottom of the socket body (1) to be electrically connected with the ground terminal (14), and the lower end of the ground conductor (13) extends from the bottom of the positioning frame (5).

9. The receptacle adapter according to claim 8, wherein the grounding conductor (13) is provided on the puck (2) to be movable up and down, and an elastic member for providing a downward elastic force to the grounding conductor (13) is further provided on the puck (2).

10. The socket adapter according to claim 9, wherein the resilient member is a helical compression spring (15) fitted over the ground conductor (13) and having an upper end abutting against the positioning plate (2) and a lower end abutting against the ground conductor (13).

11. A socket adapter according to claim 8, wherein said ground terminal (14) is provided with a second resilient clip opening (16), the upper end of said ground conductor (13) extending into said second resilient clip opening (16).

12. The socket adapter according to claim 8, wherein the positioning plate (2) is formed by connecting an outer plate (17) with a positioning middle hole (18) and an inner plate (19) positioned in the positioning middle hole (18), the outer plate (17) limits and installs the inner plate (19) at the bottom of the socket body (1), the positioning frame (5) comprises a U-shaped part (20) integrally formed on the outer plate (17) and a positioning part (21) integrally formed on the inner plate (19), the positioning part (21) is positioned at the inner side of the U-shaped part (20), and a containing groove (22) for containing the conductive insert (7) is formed between the positioning part (21) and the U-shaped part (20);

the positioning part (21) is provided with a first positioning hole (23) and a second positioning hole (24), the conductive rod (6) and the grounding conductor (13) are respectively positioned and installed in the first positioning hole (23) and the second positioning hole (24), and the lower parts of the conductive rod (6) and the grounding conductor (13) are provided with a resisting part (25) supported on the U-shaped part (20).

13. The socket adapter according to claim 12, wherein the outer disc (17) has a caulking groove (26) on an inner peripheral edge of the positioning center hole (18), and the inner disc (19) has an outer peripheral edge fitted into the caulking groove (26);

the upper end of the inner disc (19) is provided with a supporting boss (27) which is abutted against the bottom wall of the socket body (1), and the bottom end of the positioning part (21) is abutted against the inner bottom wall of the U-shaped part (20).

14. The socket adapter according to claim 12, wherein the bottom end of the conductive rod is provided with a positioning cylinder (28), and a positioning circular groove (29) which is matched with the positioning cylinder (28) is formed on the inner bottom wall of the U-shaped portion (20).

15. The socket adapter according to any one of claims 12 to 14, wherein at least two hooks (30) are provided at the edge of the outer plate (17), at least two arc-shaped locking holes (31) are correspondingly provided at the bottom of the socket body (1), and the at least two hooks (30) are respectively locked with the arc-shaped edges of the corresponding arc-shaped locking holes (31) to form a rotating connection structure.