CN211480437U - Socket converter - Google Patents

Abstract

The application relates to a socket converter, and belongs to the technical field of sockets. The socket adapter includes a housing, an electrical component, and a support component. The support assembly includes at least two support feet and a control lever. At least two support legs pass through the first wall of the housing, the support legs being configured to support the outlet converter. The control rod penetrates through the second shell wall of the shell and is linked with the at least two supporting feet to control the at least two supporting feet to synchronously extend and retract. Adopt the socket converter that this application provided, socket converter can stretch out through two at least supporting legss of control lever control when using, makes supporting legs and wall contact, plays supporting role to whole socket converter to, make socket converter more stable. And the control rod is used for controlling the extension and retraction of at least two supporting legs in a linkage manner, so that the supporting legs move synchronously, and the supporting legs are controlled more conveniently.

Description

Socket converter

Technical Field

The application relates to the technical field of sockets, in particular to a socket converter.

Background

The wall socket is installed on the wall, and generally protrudes from the wall, is used for providing power for various household or industrial electric equipment, and is very common equipment. The wall surface socket device generally has a small number of jacks, and when the number of the jacks cannot meet the requirements of users, the users generally use the socket converter to expand the number of the jacks.

The socket converter in the related art generally includes an electrical component and a housing, wherein the electrical component refers to metal parts in the socket converter, such as a plug and an output terminal (forming a jack) for electrically connecting with a wall socket and outputting electrical energy to the outside, and the housing is used for accommodating the electrical component. The volume of socket converter is generally greater than the wall socket, so when the plug of socket converter is pegged graft in the jack of wall socket, a part laminating of socket converter is on the wall, and another part can be in unsettled state, and form the space between the wall.

In the course of implementing the present application, the inventors found that the related art has at least the following problems:

when the socket converter is used, a part of the socket converter is in a suspended state and forms a gap with a wall surface, so that the socket converter is very unstable. Especially, when a user accidentally collides with the socket converter, the socket converter is easily inclined towards the wall, which results in poor contact between the plug of the socket converter and the wall socket, and even falling off.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a socket converter, can solve the technical problem that exists in the correlation technique, the technical scheme of socket converter is as follows:

embodiments of the present application provide a receptacle converter comprising a housing, an electrical component, and a support component, wherein,

the support assembly comprises at least two support legs and a control rod;

the at least two supporting legs penetrate through a first shell wall of the shell, the supporting legs are used for supporting the socket converter, and the first shell wall is a shell wall of the shell, wherein a plug in the electrical component is arranged on the shell;

the control rod penetrates through a second shell wall of the shell, and is linked with the at least two supporting feet to control the at least two supporting feet to synchronously extend and retract, and the second shell wall is a shell wall on the side surface of the first shell wall.

In one possible implementation manner, the control rod comprises a rod body and a tooth-shaped structure arranged on the rod body;

the supporting legs comprise a plurality of grooves;

the tooth-shaped structure is meshed with the grooves;

the control rod is used for enabling the tooth-shaped structure to drive the at least two supporting feet to synchronously extend and retract through rotation.

In one possible implementation manner, the tooth-shaped structure is a tooth-shaped wheel, and the tooth-shaped wheel is sleeved on the rod body;

the supporting legs are supporting bolts, and the grooves are threads;

the toothed wheel is meshed with the supporting leg through threads.

In one possible implementation, the control rod comprises a lever segment, at least two inclined lever segments and a connecting lever segment;

the operating rod section is connected with one inclined rod section, the two inclined rod sections are connected through a connecting rod section, the number of the inclined rod sections is the same as that of the supporting legs, and the axes of the at least two inclined rod sections are parallel;

the inclined rod section penetrates through the supporting leg;

the control rod is used for driving the at least two supporting feet to synchronously extend and retract through moving along the direction of the axis of the operating rod section.

In one possible implementation, the ends of the at least two inclined rod segments close to the first shell wall are located on a first straight line, the ends of the at least two inclined rod segments far from the first shell wall are located on a second straight line, and the first straight line and the second straight line are parallel to or coincide with the axis of the operating rod segment;

the distance between the through hole of the supporting leg, through which the inclined rod section passes, and the supporting end of the supporting leg is equal.

In a possible implementation, the end of the tilting lever segment connected to the operating lever segment is located on the first line, or,

and one end of the inclined rod section, which is connected with the operating rod section, is positioned on the second straight line.

In a possible implementation, the control lever further comprises a terminating rod segment connected with the tilting rod segment farthest from the operating rod segment, the terminating rod segment being used to prevent the tilting rod segment from being detached from the support foot.

In one possible implementation, the operating end of the control rod is located outside the housing, and the outside diameter of the operating end is larger than the bore diameter of the control rod hole of the second housing wall through which the control rod passes.

In one possible implementation manner, the first shell wall and the supporting legs are made of plastic;

the supporting leg is provided with a thread, the major diameter of the thread of the supporting leg is larger than the aperture of a supporting leg hole of the first shell wall, and the minor diameter of the thread of the supporting leg is smaller than or equal to the aperture of the supporting leg hole;

the thickness of the part of the first shell wall, which is matched with the supporting foot, is smaller than or equal to the thread pitch of the thread.

In a possible implementation, the plug is disposed on top of the first housing wall, and the at least two support feet are disposed at least in a lower left region and a lower right region of the first housing wall, respectively.

In a possible realization, the number of the supporting feet is 2.

The technical scheme provided by the embodiment of the application at least comprises the following beneficial effects:

the embodiment of the application provides a socket converter, because this socket converter is provided with supporting component, so when using socket converter, can stretch out through two at least supporting legss of control lever control among the supporting component, make supporting legs and wall contact, play the supporting role to whole socket converter, thereby, make socket converter more stable, even the user collides the socket converter carelessly, socket converter also can not be to the direction slope of wall, and then, can not lead to socket converter's plug and wall socket contact failure, the emergence of the condition that drops even. And the control rod is used for controlling the extension and retraction of at least two supporting legs in a linkage manner, so that the supporting legs move synchronously, and the supporting legs are controlled more conveniently.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application. In the drawings:

fig. 1 is a schematic diagram of a receptacle adapter according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a receptacle adapter according to an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a support assembly according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a support assembly according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a support assembly according to an embodiment of the present disclosure;

fig. 6 is a schematic view of a supporting foot blocking structure according to an embodiment of the present application.

Description of the figures

1. A housing, 11, a first housing wall, 12, a second housing wall;

2. a support assembly, 21, a support foot, 22, a control rod, 220, an operating end, 221, a rod body, 222, a toothed wheel, 223, an operating rod section, 224, an inclined rod section, 225, a connecting rod section, 226, a terminating rod section;

3. wall socket, 4, first straight line, 5, the second straight line.

With the above figures, there are shown specific embodiments of the present application, which will be described in more detail below. These drawings and written description are not intended to limit the scope of the inventive concepts in any manner, but rather to illustrate the inventive concepts to those skilled in the art by reference to specific embodiments.

Detailed Description

To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

The embodiment of the application provides a socket converter, which is generally used for expanding the number of usable jacks of a socket, and the jacks on the socket converter can be consistent with the jacks on the socket in shape, and can also be in various combinations of different shapes, such as a combination of two holes and three holes. In addition, the socket converter can convert the form of the socket, for example, an english standard socket into a national standard socket. The socket adapter may also include a transformer that functions to vary the voltage, for example, a cell phone charging head may be considered a socket adapter.

As shown in fig. 1 and fig. 2, the socket adapter provided in the embodiment of the present application may be a delta-shaped socket adapter, and the overall shape of the socket adapter is similar to a delta, and it can also be understood that a plug portion for disposing a plug is protruded upward from a rectangular socket adapter. Since the area of the plug portion is small, the plug portion does not shield the insertion hole beside or above the insertion hole into which the plug is inserted when the plug is inserted into the socket. This advantage is more pronounced when the jack adaptor is plugged into a row with a relatively dense number of jacks. Of course, the socket converter provided in the embodiment of the present application may also be a socket converter with other shapes, such as a rectangle, which is not limited in the present application.

The present embodiment provides a socket adapter, as shown in fig. 1 and 2, the socket adapter includes a housing 1, an electrical component (not shown in the figure), and a support component 2. The support assembly 2 comprises at least two support feet 21 and a control rod 22. At least two supporting legs 21 penetrate through the first wall 11 of the housing 1, the supporting legs 21 are used for supporting the socket adapter, and the first wall 11 is a wall of the housing 1 on which a plug in an electrical component is disposed. The control rod 22 passes through the second wall 12 of the housing 1, and the control rod 22 is linked with the two support legs 21 for controlling the at least two support legs 21 to synchronously extend and retract, wherein the second wall 12 is a wall on the side of the first wall 11.

The housing 1 is a housing of the socket adapter and is used for accommodating electrical components. The material of the housing 1 may be plastic. The first wall 11 of the housing 1 may be provided with a foot hole for the foot 21 to pass through, and the second wall 12 of the housing 1 may be provided with a lever hole for the lever 22 to pass through. The first housing wall 11 and the second housing wall 12 may be perpendicular to each other.

The electrical component refers to a metal part of the socket adapter, such as a plug and an output terminal, for realizing electrical connection with the socket and outputting electrical energy. The specific structure of the electrical component may be the same as that of the conventional socket adapter, and the electrical component is not specifically described in this application.

The support component 2 is used for supporting the socket converter, and the manufacturing material can be plastic. The support assembly 2 comprises a support foot 21 and a control rod 22.

The support legs 21 are adapted to contact a wall surface or other support surface to support the entire receptacle converter. At least two supporting feet 21 are respectively arranged at least at the lower left area and the lower right area of the first shell wall 11, so that the supporting feet 21 and the plug (not shown in the figure) at the lower left area and the lower right area form a triangular supporting structure, and the supporting is stable. The number of the supporting feet 21 is at least two, but may be more than two, which is not limited in the present application. In order to make the support of the support foot 21 more stable, the area of the support surface of the support end of the support foot 21 may be larger. Optionally, in order to save cost, the supporting foot 21 may be a common bolt, and the supporting end of the supporting foot 21 is a head of the bolt. In addition, in order to prevent the support end of the support foot 21 from protruding too much from the first housing wall 11 when the support foot 21 is retracted, the support foot hole may be a counterbore, so that part or all of the support end may be sunk into the counterbore.

The control rod 22 is used for controlling the extension and retraction of the supporting legs 21, the control rod 22 may include an operation end 220, the operation end 220 refers to a portion of the control rod 22 held by a user, the operation end 220 of the control rod 22 is located outside the housing 1, and the outer diameter is larger than the aperture of the control rod hole, so that the control rod 22 is prevented from completely extending into the housing 1, the control rod 22 is limited, and the larger outer diameter is convenient for the user to operate.

In implementation, as shown in fig. 1, when the socket converter is used, after a plug of the socket converter is inserted into a wall socket, the control rod 22 can control at least two supporting legs 21 to extend out, so that the supporting legs 21 are in contact with the wall, thereby supporting the whole socket converter and making the socket converter more stable. Even if a user collides the socket converter by accident, the socket converter cannot incline towards the wall direction due to the existence of the supporting legs 21, and further, the situation that the plug of the socket converter is in poor contact with the wall socket or even falls off is avoided. In addition, the control rod 22 controls the at least two supporting legs 21 to synchronously extend and retract, so that the supporting legs 21 synchronously move, the supporting legs 21 are more convenient to control, and a user can conveniently adjust the extending length of the supporting legs 21 through the control rod 22.

It should be noted that, for the control rod 22 to control the at least two supporting feet 21 to synchronously extend and retract, there are at least two implementations, which are described below:

the first implementation form is as follows:

in one possible implementation, as shown in fig. 3, the control lever 22 includes a lever body 221 and a tooth structure disposed on the lever body 221. The support foot 21 comprises a plurality of recesses. The tooth-shaped structure is meshed with the grooves. The control rod 22 is used for driving the at least two supporting feet 21 to synchronously extend and retract through the tooth-shaped structure by rotating.

The tooth profile structure can be a gear structure or a structure similar to a gear, and the structure similar to the gear refers to a structure in which the tooth profile does not meet the tooth profile requirement of the gear, but the whole shape is similar to the gear. When the tooth-shaped structure is a gear structure, the plurality of grooves formed on the supporting leg 21 form a rack structure.

In practice, in the first implementation form, the control rod 22 drives the supporting legs 21 to extend and retract, similar to the principle that the gear drives the rack to make linear motion, the control rod 22 is rotated to rotate the tooth-shaped structure thereon, and the rotation of the tooth-shaped structure drives the supporting legs 21 engaged with the tooth-shaped structure to make linear motion.

In manufacturing the control lever 22, the tooth structure may be integrally formed with the lever body 221.

Alternatively, in a possible implementation manner, as shown in fig. 2, the tooth-shaped structure is a tooth-shaped wheel 222, and the tooth-shaped wheel 222 is sleeved on the rod body 221. The supporting feet 21 are supporting bolts and the plurality of grooves are threads. The toothed wheel 222 engages with the threads of the support foot 21.

In practice, the head of the bolt, which may be a supporting bolt, protrudes through the first housing wall 11, so that the head of the bolt is the supporting end of the supporting foot 21, which increases the supporting area.

An interference fit may be provided between the toothed wheel 222 and the shaft 221 to accomplish axial and circumferential retention of the toothed wheel 222 on the shaft 221.

The manufacturing difficulty of the rod body 221 is greatly reduced by arranging the toothed wheel control rod 22 into the split rod body 221 and the toothed wheel 222.

The second implementation form is as follows:

in one possible implementation, as shown in fig. 4 and 5, the control lever 22 includes a lever segment 223, at least two inclined lever segments 224, and a connecting lever segment 225. The actuating rod section 223 is connected to one inclined rod section 224, and the two inclined rod sections 224 are connected to each other by a connecting rod section 225. The number of tilting bar segments 224 is the same as the number of supporting feet 21, the axes of at least two tilting bar segments 224 being parallel. The inclined rod segment 224 passes through the support foot 21.

The control rod 22 is used to drive the simultaneous extension and retraction of at least two support feet 21 by moving in the direction of the axis of the lever section 223.

In the second implementation form, the control rod 22 may also be referred to as a push rod or a pull rod. The cross-sectional shape of the control rod 22 may be rectangular or circular, but the present invention is not limited thereto.

The length of the whole operation rod section 223 can be the movement stroke of the control rod 22, one end of the operation rod section 223, which is far away from the inclined rod section 224, is the operation end 220 of the control rod 22, and the outer diameter of the operation end 220 can be larger than the aperture of the control rod hole through which the control rod 22 passes, so that the control rod 22 is limited, and the control rod 22 is prevented from completely extending into the housing 1. Moreover, the larger operating end 220 is also convenient for the user to hold.

The connecting rod section 225 is used to connect two inclined rod sections 224, and one end of the connecting rod section 225 is connected to the end of one inclined rod section 224 away from the first housing wall 11, and the other end is connected to the end of the other inclined rod section 224 close to the first housing wall 11. The connecting rod segment 225 may comprise two parallel segments connected to two inclined rod segments 224, respectively, whose axes may be a first straight line 4 and a second straight line 5, respectively. And, in order to connect the two parallel sections, the connecting rod section 225 further includes a vertical section having both ends connected to one of the parallel sections, respectively, and alternatively, an axis of the vertical section may be perpendicular to an axis of the parallel section, as shown in fig. 4 and 5.

In addition, a terminal rod segment 226 may be provided at an end of the control lever 22 away from the operation rod segment 223, the terminal rod segment 226 being used to prevent the tilting rod segment 224 and the support foot 21 from being disengaged, as shown in fig. 4, the terminal rod segment 226 being connected to the tilting rod segment 224 farthest from the operation rod segment 223, and an axis of the terminal rod segment 226 may be perpendicular to an axis of the operation rod segment 223.

In practice, the axis of the lever segment 223 may be parallel to the first housing wall 11, and the inclined lever segment 224 is inclined with respect to the lever segment 223, so that the axis of the inclined lever segment 224 intersects the first housing wall, and the distance between each portion of the inclined lever segment 224 and the first housing wall 11 is different. Therefore, when different parts of the angled pole segment 224 come into contact with the support foot 21, the support foot 21 extends out of the first housing wall 11 by different distances. Moreover, since the axes of the inclined rod segments 224 are all parallel, when the control rod 22 moves along the axial direction of the operating rod segment 223, the moving distance of each supporting foot 21 is equal, and the supporting feet 21 are synchronously extended and retracted.

In order to keep the distance of the support feet 21 from the first housing wall 11 always equal, in one possible embodiment, the ends of the at least two angled pole segments 224 close to the first housing wall 11 are located on a first straight line 4, the ends of the at least two angled pole segments 224 remote from the first housing wall 11 are located on a second straight line 5, and the first straight line 4 and the second straight line 5 are parallel to or coincide with the axis of the operating pole segment 213. The through-holes of the support feet 21 through which the oblique rod segments 224 pass are at equal distances from the support ends of the support feet 21. As shown in fig. 4 and 5, the first straight line 4 is closer to the first housing wall 11 than the second straight line 5 is to the first straight line 4.

In practice, each support foot 21 may be identical, with the length thereof coinciding with the position of the through hole through which the support foot 21 passes. In addition, the distance between the two leg holes provided in the first housing wall 11 is equal to the distance between the two ends of the corresponding two inclined rod segments 224 located on the first straight line 4 (or the second straight line 5). That is, the supporting foot holes correspond to the inclined rod segments 224 one-to-one, and the positions of the inclined rod segments 224 corresponding to the supporting foot holes are the same.

By the above structure limitation, it can be ensured that the distance of the supporting leg 21 extending out of the first shell wall 11 is always equal after the supporting leg 21 is installed.

The control rod 22 controls the extension and retraction of the support foot 21 in two forms:

in the first form, when the control rod 22 is withdrawn outwardly in the direction of the arrow shown in fig. 4 so that the operating end 220 of the control rod 22 is gradually spaced away from the second housing wall 12, the support legs 21 are gradually retracted, and accordingly, as shown in fig. 4, the end of the inclined rod segment 224 connected to the operating rod segment 223 is located on the first straight line 4. That is, the end of the slanted bar section 224 connected to the lever section 223 is the end of the slanted bar section 224 adjacent to the first housing wall 11.

In practice, as shown in fig. 4, since the distance between each part of the inclined rod segment 224 and the first housing wall 11 is gradually increased along the direction away from the operating rod segment 223, when the control rod 22 is drawn out, the distance between the part of the inclined rod segment 224 contacting the support foot 21 and the first housing wall 11 is gradually increased, and the control rod 22 with the support foot 21 is gradually retracted. In this form, when the operating end 220 of the lever section 223 is in contact with the second housing wall 12, the support foot 21 is extended and is in the extended extreme position.

In the second form, when the control rod 22 is drawn out in the direction of the arrow shown in fig. 5 so that the operating end 220 of the control rod 22 is gradually spaced away from the second housing wall 12, the support foot 21 is gradually extended, and accordingly, as shown in fig. 5, the end of the inclined rod section 224 connected to the operating rod section 223 is located on the second straight line 5. That is, the end of the angled pole segment 224 that is connected to the lever segment 223 is the end of the angled pole segment 224 that is distal from the first housing wall 11.

In practice, as shown in fig. 5, since the distance between each part of the inclined rod segment 224 and the first housing wall 11 is gradually reduced in the direction away from the operating rod segment 223, when the control rod 22 is drawn out, the distance between the part of the inclined rod segment 224 contacting the support feet 21 and the first housing wall 11 is gradually reduced, and the control rod 22 with the support feet 21 is gradually extended. In this form, when the operating end 220 is in contact with the housing 1, the support foot 21 is retracted and is in a retracted extreme position.

It should be added that, for any of the above implementations, a blocking structure may be provided to block the retraction of the supporting foot 21 after the supporting foot 21 is extended, in order to avoid the automatic retraction of the supporting foot 21 into the supporting foot hole. In one possible implementation, as shown in fig. 6, the supporting leg 21 has a screw thread, the major diameter of the screw thread of the supporting leg 21 is larger than the diameter of the supporting leg hole of the first housing wall 11, and the minor diameter of the screw thread of the supporting leg 21 is smaller than or equal to the diameter of the supporting leg hole. The thickness of the part of the first shell wall 11, which is matched with the supporting foot 21, is less than or equal to the thread pitch of the thread. Therefore, the first shell wall 11 can be clamped in the threaded groove of the supporting foot 21, which has a certain blocking effect on the supporting foot 21 and avoids the automatic retraction of the supporting foot 21.

The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (11)

1. A socket adapter, characterized in that the socket adapter comprises a housing (1), an electrical component and a support component (2), wherein,

the support assembly (2) comprises at least two support feet (21) and a control rod (22);

the at least two supporting feet (21) penetrate through a first shell wall (11) of the shell (1), the supporting feet (21) are used for supporting the socket converter, and the first shell wall (11) is a shell wall of the shell (1) provided with a plug in the electrical component;

the control rod (22) penetrates through a second shell wall (12) of the shell (1), the control rod (22) is linked with the at least two supporting feet (21) and used for controlling the at least two supporting feet (21) to synchronously extend and retract, and the second shell wall (12) is a shell wall on the side surface of the first shell wall (11).

2. The socket changer of claim 1, wherein the lever (22) comprises a lever body (221) and a tooth structure provided on the lever body (221);

the supporting foot (21) comprises a plurality of grooves;

the tooth-shaped structure is meshed with the grooves;

the control rod (22) is used for enabling the tooth-shaped structure to drive the at least two supporting feet (21) to synchronously extend and retract through rotation.

3. The socket adapter according to claim 2, wherein the tooth structure is a tooth wheel (222), the tooth wheel (222) being fitted over the shaft (221);

the supporting legs (21) are supporting bolts, and the grooves are threads;

the toothed wheel (222) is meshed with the threads of the supporting foot (21).

4. The socket converter according to claim 1, wherein the control rod (22) comprises a lever segment (223), at least two inclined lever segments (224) and a connecting lever segment (225);

the operating rod section (223) is connected with one inclined rod section (224), two inclined rod sections (224) are connected through a connecting rod section (225), the number of the inclined rod sections (224) is the same as that of the supporting feet (21), and the axes of the at least two inclined rod sections (224) are parallel;

the inclined rod section (224) passes through the supporting foot (21);

the control rod (22) is used for driving the at least two supporting feet (21) to synchronously extend and retract by moving along the direction of the axis of the operating rod section (223).

5. The socket converter according to claim 4, wherein the ends of the at least two slanted bar sections (224) close to the first housing wall (11) are located on a first straight line, the ends of the at least two slanted bar sections (224) far from the first housing wall (11) are located on a second straight line, the first straight line and the second straight line are parallel to or coincide with the axis of the operation bar section (223);

the distance between the through hole of the supporting foot (21) through which the inclined rod section (224) passes and the supporting end of the supporting foot (21) is equal.

6. The socket adapter according to claim 5, wherein the end of the slanted bar section (224) connected to the lever section (223) is located on the first straight line, or,

the end of the inclined rod section (224) connected with the operating rod section (223) is positioned on the second straight line.

7. The socket adapter according to claim 4, wherein the control lever (22) further comprises a terminating lever segment (226), the terminating lever segment (226) being connected with the tilting lever segment (224) farthest from the operating lever segment (223), the terminating lever segment (226) being used to prevent the tilting lever segment (224) from being detached from the supporting foot (21).

8. A socket adapter according to claim 1, wherein the control rod (22) comprises an operating end (220), the operating end (220) being located outside the housing (1), and the operating end (220) having an outer diameter larger than the diameter of the control rod hole of the second housing wall (12) through which the control rod (22) passes.

9. The socket adapter according to claim 1, wherein the first housing wall (11) and the supporting legs (21) are made of plastic;

the supporting leg (21) is provided with a thread, the major diameter of the thread of the supporting leg (21) is larger than the aperture of a supporting leg hole of the first shell wall (11) which penetrates through the supporting leg, and the minor diameter of the thread of the supporting leg (21) is smaller than or equal to the aperture of the supporting leg hole;

the thickness of the part of the first shell wall (11) matched with the supporting foot (21) is smaller than or equal to the thread pitch of the thread.

10. A socket adapter according to claim 1, wherein the plug is arranged on top of the first housing wall (11), the at least two support feet (21) being arranged at least in a lower left region and a lower right region of the first housing wall (11), respectively.

11. The socket adapter according to any of claims 1-10, wherein the number of said supporting feet (21) is 2.

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