Telescopic socket

Abstract

The present disclosure provides a telescopic socket, belonging to the technical field of socket. The telescopic socket comprises a containing shell, a socket body and an elastic piece. The containing shell is provided with a lock, and the socket body is telescopically installed in the containing shell. The socket body comprises a socket shell, a plug-in assembly and a resetter. The plug-in assembly is located in the interior of the socket shell, and at least a part of the resetter is located in the interior of the socket shell and between the plug-in assembly and the side wall of the socket shell, and the resetter is opposite to the lock. The elastic piece is respectively abutted against the containing shell and the socket body. In the telescopic socket provided by the present disclosure, since the resetter is located between the plug-in assembly and the side wall of the socket shell and is not blocked by the plug-in assembly, the length of the resetter extending into the interior of the socket shell can be larger, and the length of the exposed part of the resetter can be smaller, thereby reducing the length of the socket body in the telescopic direction, so that the telescopic socket can be installed in the existing 86 dark box.

Description

[0001] This disclosure claims priority to Chinese Patent Application No. 202210476088.9, filed on April 29, 2022, entitled "Telescopic Socket, Socket Body and Socket Module", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of socket technology, specifically to a retractable socket. Background Technology

[0003] A retractable socket embedded in a wall typically includes a housing, a socket body, and a resilient element. The housing is used to install in a wall-mounted junction box, the socket body is retractably inserted into the housing, and the resilient element is located between the housing and the bottom of the socket body.

[0004] The socket body in the related technology includes a socket housing, three socket modules, and a resetter. The three socket modules are located inside the socket housing and are arranged sequentially along the extension and retraction direction of the socket body. The resetter is located on the side of the three socket modules facing the bottom of the housing, and the resetter is used to engage with a locking device at the bottom of the housing for locking.

[0005] Because the retractable socket is blocked by the insert module, the size of the retractable socket that extends into the socket housing is limited, resulting in a longer exposed portion of the retractable socket. This makes the socket body longer in the telescopic direction, requiring a greater depth for the housing and the mounting box, thus preventing the telescopic socket from being installed in an 86-type junction box. Summary of the Invention

[0006] This disclosure provides a retractable socket that solves the technical problems existing in related technologies. The technical solution of the retractable socket is as follows:

[0007] This disclosure provides a telescopic socket, the telescopic socket including a receiving shell, a socket body and an elastic element;

[0008] The housing has a locking device, and the socket body is retractably mounted in the housing;

[0009] The socket body includes a socket housing, a plug-in assembly, and a resetter. The plug-in assembly is located inside the socket housing, and at least a portion of the resetter is located inside the socket housing and between the plug-in assembly and the side wall of the socket housing. The resetter is opposite to the locking device.

[0010] The elastic element abuts against the receiving shell and the socket body, respectively.

[0011] In one possible implementation, a portion of the resetter is located inside the socket housing, and the locking portion of the resetter is exposed on the bottom wall of the socket housing.

[0012] In one possible implementation, the resetter is located inside the socket housing, and the portion of the bottom wall of the socket housing corresponding to the resetter has an opening through which the locking device passes.

[0013] In one possible implementation, the resetter is fixedly connected to the socket housing; or...

[0014] The resetter is fixedly connected to the plug-in assembly; or...

[0015] The resetter is held between the socket housing and the plug assembly.

[0016] In one possible implementation, there are two resetters, located at two opposite corners of the socket housing;

[0017] There are two locking devices, which are located at two opposite corners of the housing.

[0018] In one possible implementation, the plug assembly includes a socket module, the socket module including a first plug portion, a second plug portion and a third plug portion, the first plug portion and the second plug portion facing opposite directions and connected back to back, the back of the third plug portion being connected to the side of the first plug portion and the side of the second plug portion.

[0019] One of the two resetters is located on the side of the third connector and away from the second connector, and the other is located on the side of the second connector away from the third connector.

[0020] In one possible implementation, the plug-in assembly includes a socket module and a low-voltage module. The socket module includes a first plug-in portion and a second plug-in portion, the first plug-in portion and the second plug-in portion facing opposite directions and connected at their backs. The low-voltage module is located on the side of the first plug-in portion and the side of the second plug-in portion.

[0021] One of the two resetters is located on the side of the low-voltage module and away from the second connector, while the other is located on the side of the second connector away from the low-voltage module.

[0022] In one possible implementation, the bottom of the housing has an L terminal, an N terminal, and an E terminal.

[0023] The plug-in assembly includes an L-pole socket assembly, an N-pole socket assembly, and an E-pole socket assembly, with the L-pole terminal of the L-pole socket assembly, the N-pole terminal of the N-pole socket assembly, and the E-pole terminal of the E-pole socket assembly extending out from the bottom wall of the socket housing.

[0024] The L terminal, N terminal, and E terminal are electrically connected to the L terminal, N terminal, and E terminal respectively via flexible wires.

[0025] In one possible implementation, the elastic element includes a first support arm, a second support arm, and a first V-shaped torsion spring;

[0026] The two ends of the first V-shaped torsion spring are fixedly connected to one end of the first support arm and one end of the second support arm, respectively. The first support arm and the second support arm extend in a direction away from the opening of the first V-shaped torsion spring.

[0027] The first support arm abuts against the receiving shell, and the second support arm abuts against the socket body.

[0028] In one possible implementation, the elastic element further includes a second V-shaped torsion spring;

[0029] The two ends of the second V-shaped torsion spring are fixedly connected to the other end of the first support arm and the other end of the second support arm, respectively, and the opening direction of the second V-shaped torsion spring is opposite to the opening direction of the first V-shaped torsion spring.

[0030] In one possible implementation, one or both of the first support arm and the second support arm include at least two mutually bent support segments, and both of the at least two mutually bent support segments abut against the receiving shell or the socket body.

[0031] In one possible implementation, the at least two mutually bent support segments include a first support segment, a second support segment, and a third support segment connected in sequence;

[0032] The first support segment and the third support segment are both bent relative to the second support segment and are located on different sides of the second support segment;

[0033] The first support segment, the second support segment, and the third support segment all abut against the receiving shell or the socket body.

[0034] In one possible implementation, the projections of the first support segment and the third support segment along the length direction of the elastic member at least partially overlap.

[0035] In one possible implementation, the lengths of the first support segment and the third support segment are greater than or equal to 2d and less than or equal to 4d, where d is the diameter of the first support arm and the second support arm.

[0036] In one possible implementation, the first support segment is parallel to the third support segment.

[0037] In one possible implementation, there are two elastic elements, which are located on opposite sides of the receiving shell.

[0038] In one possible implementation, the housing is used to be installed inside the 86-cell dark box.

[0039] The technical solution provided in this disclosure has at least the following beneficial effects:

[0040] The technical solution provided in this disclosure, by setting the resetter between the plug-in assembly and the side wall of the socket housing, that is, the resetter is located on one side of the plug-in assembly, so that the resetter is not blocked by the plug-in assembly. Therefore, the length of the resetter extending into the interior of the socket housing can be large, and the length of the exposed part of the resetter can be small. Thus, the length of the socket body in the telescopic direction is reduced, so that the telescopic socket provided in this disclosure can be installed in an 86 junction box.

[0041] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0042] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. In the drawings:

[0043] Figure 1 This is a schematic diagram of a retractable socket according to an embodiment of this disclosure;

[0044] Figure 2 This is a schematic diagram of a retractable socket according to an embodiment of this disclosure;

[0045] Figure 3 This is an exploded view of a retractable socket shown in an embodiment of this disclosure;

[0046] Figure 4 This is an exploded view of a socket body shown in an embodiment of this disclosure;

[0047] Figure 5 This is a schematic diagram of a receiving shell shown in an embodiment of this disclosure;

[0048] Figure 6This is a partial schematic diagram of a receiving shell shown in an embodiment of this disclosure;

[0049] Figure 7 This is a schematic diagram of a plug-in assembly shown in an embodiment of this disclosure;

[0050] Figure 8 This is an exploded view of a socket body shown in an embodiment of this disclosure;

[0051] Figure 9 This is an exploded view of a plug-in assembly shown in an embodiment of this disclosure;

[0052] Figure 10 This is a schematic diagram of a plug-in assembly shown in an embodiment of this disclosure;

[0053] Figure 11 This is an exploded view of a socket body shown in an embodiment of this disclosure;

[0054] Figure 12 This is an exploded view of a plug-in assembly shown in an embodiment of this disclosure;

[0055] Figure 13 This is a schematic diagram illustrating a wiring method for a retractable socket according to an embodiment of this disclosure;

[0056] Figure 14 This is a schematic diagram illustrating the wiring position of a retractable socket according to an embodiment of this disclosure;

[0057] Figure 15 This is an exploded view of a socket module shown in an embodiment of this disclosure;

[0058] Figure 16 This is an exploded view of a socket module shown in an embodiment of this disclosure;

[0059] Figure 17 This is an exploded view of a socket module shown in an embodiment of this disclosure;

[0060] Figure 18 This is an exploded view of a socket module shown in an embodiment of this disclosure;

[0061] Figure 19 This is a schematic diagram of an elastic element shown in an embodiment of this disclosure;

[0062] Figure 20 This is a schematic diagram illustrating a connection method of the first support arm according to an embodiment of the present disclosure;

[0063] Figure 21 This is a schematic diagram illustrating a connection method of the first support arm according to an embodiment of the present disclosure;

[0064] Figure 22This is a schematic diagram of a first limiting groove and a hook according to an embodiment of the present disclosure;

[0065] Figure 23 This is a schematic diagram illustrating a connection method of the second support arm according to an embodiment of the present disclosure;

[0066] Figure 24 This is a schematic diagram illustrating a connection method of the second support arm according to an embodiment of the present disclosure;

[0067] Figure 25 This is a schematic diagram of an elastic element shown in an embodiment of this disclosure;

[0068] Figure 26 This is a schematic diagram of an elastic element shown in an embodiment of this disclosure;

[0069] Figure 27 This is a schematic diagram of a support arm shown in an embodiment of this disclosure;

[0070] Figure 28 This is a schematic diagram of a support arm shown in an embodiment of this disclosure;

[0071] Figure 29 This is a schematic diagram of a support arm shown in an embodiment of this disclosure;

[0072] Figure 30 This is a schematic diagram of a support arm shown in an embodiment of this disclosure;

[0073] Figure 31 This is a schematic diagram illustrating a connection method between a socket body and a guide post according to an embodiment of this disclosure;

[0074] Figure 32 This is a schematic diagram illustrating a connection method between a socket body and a guide post according to an embodiment of this disclosure.

[0075] Legend

[0076] 1. Housing; 11. Mounting bracket; 12. Bottom cover; 121. Limiting structure; 1211. First limiting groove; 1211a. First groove end; 1211b. Main groove section; 1211c. Second groove end; 1212. First hook; 122. Locking device; 123. L terminal; 124. N terminal; 125. E terminal; 13. Panel;

[0077] 2. Socket body; 21. Socket housing; 211. Outer shell; 2110. Socket hole; 2111. Side wall; 2112. Sliding connection part; 212. Pressure plate; 2120. Second limiting groove; 2121. Bottom wall; 2122. Second hook; 22. Plug assembly; 221. Socket module; 221a. First plug part; 221b. Second plug part; 221c. Third plug part; 2211. Socket base; 2212. Socket; 2212a. L pole socket; 2212b. N pole socket; 2 212c, E-pole socket; 22121, L-pole solder piece; 22122, N-pole solder piece; 22123, E-pole solder piece; 2213, connecting piece; 2213a, L-pole connecting piece; 2213b, N-pole connecting piece; 2213c, E-pole connecting piece; 22131, L-pole wiring solder piece; 22132, N-pole wiring solder piece; 22133, E-pole wiring solder piece; a, L-pole terminal; b, N-pole terminal; c, E-pole terminal; 222, protection door; 223, low-voltage module; 23, resetter;

[0078] 3. Elastic element; 31. First support arm; 311. First support segment; 312. Second support segment; 313. Third support segment; 314. Fourth support segment; 315. Fifth support segment; 32. Second support arm; 33. First V-shaped torsion spring; 3a. First end; 3b. Second end.

[0079] 4. Guide pillars;

[0080] 5. Dark box.

[0081] The accompanying drawings have illustrated specific embodiments of this disclosure, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this disclosure to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0082] To make the objectives, technical solutions, and advantages of this disclosure clearer, the embodiments of this disclosure will be described in further detail below with reference to the accompanying drawings.

[0083] The terminology used in the embodiments of this disclosure is for illustrative purposes only and is not intended to limit the disclosure. Unless otherwise defined, the technical or scientific terms used herein should be understood in their ordinary sense by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” “third,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “a” or “one,” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “comprising,” “including,” and similar terms mean that the elements or objects preceding “comprising” or “including” encompass the elements or objects listed following “comprising” or “including” and their equivalents, and do not exclude other elements or objects. The terms “connected,” “linked,” and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms “upper,” “lower,” “left,” “right,” etc., are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0084] A retractable socket embedded in a wall typically includes a housing 1, a socket body 2, and an elastic element 3. The socket body 2 is retractably installed inside the housing 1, and one of the housing 1 and the socket body 2 has a resetter 23, while the other has a locking device 122. The elastic element 3 is located between the bottom of the housing 1 and the bottom of the socket body 2.

[0085] When the retractable socket is not in use, the user presses the socket body 2, causing the resetter 23 to lock with the locking device 122, the elastic element 3 remains in a compressed state, and the socket body 2 is hidden inside the housing 1 (e.g., Figure 1 (As shown in the middle left part). When the retractable socket is needed, the user presses the socket body 2, which releases the locking state between the resetter 23 and the locking device 122. Under the elastic force of the elastic element 3, the socket body 2 extends, and the socket hole on the socket body 2 is exposed, allowing the user to use the retractable socket normally (e.g., Figure 1 (As shown in the middle right section).

[0086] like Figure 1 and Figure 2 As shown, retractable sockets are typically installed in recessed wall boxes, such as the 86-type box (86mm x 86mm). The 86-type box is a standard-sized box widely used in daily life.

[0087] In order for the retractable socket to be compatible with 86-type junction boxes and to improve its applicability, the size of the retractable socket must not be too large.

[0088] Specifically, the 86-type junction box has ample dimensions in the height (or length) and width directions, but its depth dimension is limited to only 45mm. Therefore, reducing the depth dimension of the telescopic socket in the 86-type junction box (i.e., the telescopic direction of the socket body 2) is a key technical issue.

[0089] The size of the telescopic socket is mainly determined by the socket body 2. In related technologies, the socket body 2 includes a socket housing 21, three socket modules (each socket module corresponds to one phase), and a resetter 23. The three socket modules are located inside the socket housing 21 and are arranged sequentially along the telescopic direction of the socket body 2 (that is, the depth direction of the 86 junction box). The resetter 23 is located on the side of the three socket modules facing the bottom of the housing 1.

[0090] However, due to the obstruction of the socket module, the size of the resetter 23 extending into the socket housing 21 is limited, resulting in a longer exposed portion of the resetter 23 and a larger size of the socket body 2 in the 86-fold recess depth direction, which in turn results in a larger size of the telescopic socket in the 86-fold recess depth direction.

[0091] This would prevent the telescopic socket in the relevant technology from being installed inside an 86-type junction box, or, although it could be installed inside an 86-type junction box, the dimensions of the rest of the telescopic socket in the depth direction of the 86-type junction box would need to be reduced as much as possible, affecting the reliability of the telescopic socket.

[0092] In view of the above-mentioned technical problems, embodiments of this disclosure provide a retractable socket, such as... Figure 3 and Figure 4 As shown, the telescopic socket includes a receiving housing 1, a socket body 2, and a resilient element 3. The receiving housing 1 has a locking device 122 (e.g., Figure 6 As shown, the socket body 2 is retractably mounted in the receiving shell 1. The socket body 2 includes a socket housing 21, a plugging assembly 22, and a resetter 23. The plugging assembly 22 is located inside the socket housing 21, and at least a portion of the resetter 23 is located inside the socket housing 21, between the plugging assembly 22 and the side wall 2111 of the socket housing 21. The resetter 23 is opposite to the locking device 122. The elastic member 3 abuts against the receiving shell 1 and the socket body 2 respectively.

[0093] Among them, such as Figure 4 As shown, the side wall 2111 can be a shell wall parallel to the extension and retraction direction of the socket body 2, and the side wall 2111 can have a socket 2110.

[0094] The housing 1 is used for installation in the junction box 5 (such as an 86 junction box) and for accommodating the socket body 2 and the elastic element 3. In some examples, such as Figure 5As shown, the housing 1 includes a mounting bracket 11, a bottom cover 12, and a panel 13. The bottom cover 12 seals the opening at the bottom of the mounting bracket 11, and the panel 13 is located at the top of the mounting bracket 11 and has an opening through which the socket body 2 passes. The first support arm 31 of the elastic member 3 can be connected to the bottom cover 12, and the second support arm 32 can be connected to the socket body 2. For example, as... Figure 6 As shown, the bottom cover 12 has a locking device 122.

[0095] The socket housing 21 serves to protect and support the plug assembly 22 and the resetter 23, as in some examples, such as Figure 4 As shown, the socket housing 21 includes an outer shell 211 and a pressure plate 212, with the pressure plate 212 fixedly connected to the outer shell 211. The pressure plate 212 is opposite to the bottom of the housing 1, and the outer shell 211 has the aforementioned side wall 2111.

[0096] The plug assembly 22 is used to mate with the plug.

[0097] The technical solution provided in this embodiment of the disclosure, by setting the resetter 23 between the plug-in assembly 22 and the side wall 2111 of the socket housing 21, that is, the resetter 23 is located on one side of the plug-in assembly 22, so that the resetter 23 is not blocked by the plug-in assembly 22. Therefore, the length of the resetter 23 extending into the interior of the socket housing 21 can be large, and the length of the exposed part of the resetter 23 can be small. Thus, the dimensions of the socket body 2 and the telescopic socket in the depth direction of the 86 junction box are reduced, so that the telescopic socket provided in this embodiment of the disclosure can be applied in the 86 junction box.

[0098] Since there is no obstruction from the plug-in component 22, the length of the resetter 23 extending into the socket housing 21 can be arbitrarily set according to actual needs. In some examples, such as Figure 4 As shown, a portion of the resetter 23 is located inside the socket housing 21, and the locking head portion of the resetter 23 protrudes from the bottom wall 2121 of the socket housing 21. The locking head portion is used to lock with the locking device 122.

[0099] In other examples, the resetter 23 is located inside the socket housing 21, and the portion of the bottom wall 2121 of the socket housing 21 corresponding to the resetter 23 has an opening through which the locking device 122 passes. In this case, the locking device 122 needs to pass through the opening when locking with the resetter 23.

[0100] This disclosure does not limit the fixing method of the resetter 23. In some examples, the resetter 23 is fixedly connected to the socket housing 21. In other examples, the resetter 23 is fixedly connected to the plug-in assembly 22. In still other examples, the resetter 23 is clamped between the socket housing 21 and the plug-in assembly 22.

[0101] The present disclosure does not limit the number of resetters 23. The specific number of resetters 23 can be determined by considering the following two aspects.

[0102] On the one hand, since the resetter 23 is located on one side of the plug assembly 22, it increases the circumferential size of the socket body 2. Therefore, the number of resetters 23 should not be too large. On the other hand, since the resetter 23 is located at the edge rather than in the middle, if there is only one resetter 23, it will cause uneven force on the socket body 2 and make it easy to get stuck.

[0103] In some examples, such as Figure 4 As shown, there are two resetters 23, located at opposite corners of the socket housing 21. This ensures the stability of the socket body 2 under stress while preventing the socket body 2 from becoming too large in the circumferential direction.

[0104] Correspondingly, such as Figure 6 As shown, there are two locking devices 122, located at opposite corners of the housing 1. Each locking device 122 is opposite to the resetter 23.

[0105] Below, the position of the resetter 23 will be described in more detail, taking into account the specific implementation of the socket body 2:

[0106] (1) In some examples, such as Figure 7 As shown, the plug-in assembly 22 includes a socket module 221, which includes a first plug-in portion 221a, a second plug-in portion 221b, and a third plug-in portion 221c. The first plug-in portion 221a and the second plug-in portion 221b face opposite directions and are connected at their backs. The back of the third plug-in portion 221c is connected to the side of the first plug-in portion 221a and the side of the second plug-in portion 221b. One of the two resetters 23 is located on the side of the third plug-in portion 221c and away from the second plug-in portion 221b, while the other is located on the side of the second plug-in portion 221b away from the third plug-in portion 221c.

[0107] The first plug-in portion 221a, the second plug-in portion 221b and the third plug-in portion 221c are respectively opposite to the three side walls 2111 of the socket housing 21, and each of the three side walls 2111 has a plug hole 2110.

[0108] The technical solution provided in this disclosure provides sufficient space for the resetter 23 inside the socket housing 21 by setting three side walls 2111 of the socket housing 21 to have socket holes 2110, instead of all four side walls 2111 of the socket housing 21 having socket holes.

[0109] In some examples, such as Figure 7As shown, to improve the safety of the plug-in assembly 22, the plug-in assembly 22 also includes protective doors 222. For ease of description, the three protective doors 222 are referred to as the first protective door 222a, the second protective door 222b, and the third protective door 222c. The first protective door 222a, the second protective door 222b, and the third protective door 222c are respectively connected to the first plug-in part 221a, the second plug-in part 221b, and the third plug-in part 221c.

[0110] The formation of the first connector 221a, the second connector 221b, and the third connector 221c will be described below by way of example:

[0111] In some examples, such as Figure 8 As shown, the plug-in assembly 22 includes a socket base 2211, multiple sets of sockets 2212, and multiple protective doors 222. The multiple sets of sockets 2212 are fixed to the socket base 2211, and each set of sockets 2212 includes multiple sockets 2212 facing the same sidewall 2111 of the socket housing 21. The multiple protective doors 222 are fixed to the socket base 2211 and are respectively opposite to the multiple sets of sockets 2212.

[0112] Among them, the socket 2211 and various sockets 2212 constitute the socket module 221.

[0113] The socket 2211 can be integrally molded, thereby reducing the number of parts included in the socket body 2 and simplifying the assembly process of the socket body 2.

[0114] In some examples, such as Figure 8 and Figure 9 As shown, the socket housing 21 has three side walls 2111 with socket holes 2110. The socket socket 2211 includes a first receiving portion 2211a, a second receiving portion 2211b and a third receiving portion 2211c. The openings of the first receiving portion 2211a and the second receiving portion 2211b face opposite directions and are connected at their backs. The back of the third receiving portion 2211c is connected to the side of both the first receiving portion 2211a and the second receiving portion 2211b.

[0115] There are three sets of inserts 2212, and the three sets of inserts 2212 are respectively located inside the first receiving part 2211a, the second receiving part 2211b, and the third receiving part 2211c. Multiple protective doors 222 include a first protective door 222a, a second protective door 222b, and a third protective door 222c, which respectively close the openings of the first receiving part 2211a, the second receiving part 2211b, and the third receiving part 2211c.

[0116] One resetter 23 is located on the side of the third receiving portion 2211c and is adjacent to the first protective door 222a. Another resetter 23 is located on the side of the second receiving portion 2211b away from the third receiving portion 2211c and is adjacent to the second protective door 222b.

[0117] The first insertion portion 221a includes a first receiving portion 2211a and a socket 2212 located in the first receiving portion 2211a. The second insertion portion 221b includes a second receiving portion 2211b and a socket 2212 located in the second receiving portion 2211b. The third insertion portion 221c includes a third receiving portion 2211c and a socket 2212 located in the third receiving portion 2211c.

[0118] (2) In other examples, such as Figure 10 As shown, the plug-in assembly 22 includes a socket module 221 and a low-voltage module 223. The socket module 221 includes a first plug-in portion 221a and a second plug-in portion 221b, which face opposite directions and are connected at their backs. The low-voltage module 223 is located on the side of the first plug-in portion 221a and the side of the second plug-in portion 221b. One of the two resetters 23 is located on the side of the low-voltage module 223, away from the second plug-in portion 221b, and the other is located on the side of the second plug-in portion 221b, away from the low-voltage module 223.

[0119] Among them, the low-voltage module 223 can be a Universal Serial Bus (USB) module, etc.

[0120] In some examples, such as Figure 10 As shown, to improve the safety of the plug-in assembly 22, the plug-in assembly 22 also includes protective doors 222. For ease of description, the two protective doors 222 are referred to as the first protective door 222a and the second protective door 222b. The first protective door 222a and the second protective door 222b are respectively connected to the first plug-in portion 221a and the second plug-in portion 221b.

[0121] The formation of the first insertion portion 221a and the second insertion portion 221b will be described below by way of example:

[0122] In some examples, such as Figure 11 and Figure 12 As shown, the socket housing 21 has three side walls 2111 with socket holes 2110, and the socket 2211 includes a first receiving portion 2211a and a second receiving portion 2211b. The openings of the first receiving portion 2211a and the second receiving portion 2211b face opposite directions and are connected at the back. The low-voltage module 223 is located on the side of the first receiving portion 2211a and the side of the second receiving portion 2211b.

[0123] There are two sets of inserts 2212, and the two sets of inserts 2212 are located inside the first receiving portion 2211a and the second receiving portion 2211b, respectively. The plurality of protective doors 222 include a first protective door 222a and a second protective door 222b, which respectively close the openings of the first receiving portion 2211a and the second receiving portion 2211b.

[0124] One resetter 23 is located on the side of the low-voltage module 223 and is adjacent to the first protection door 222a. The other resetter 23 is located on the side of the second receiving part 2211b away from the low-voltage module 223 and is adjacent to the second protection door 222b.

[0125] The first insertion portion 221a includes a first receiving portion 2211a and a socket 2212 located in the first receiving portion 2211a. The second insertion portion 221b includes a second receiving portion 2211b and a socket 2212 located in the second receiving portion 2211b.

[0126] As mentioned above, the retractable socket body 2 in the related technology includes a socket housing 21, three socket modules (each socket module corresponds to one phase) and a resetter 23. The three socket modules are located inside the socket housing 21 and are arranged sequentially along the retraction direction of the socket body 2 (that is, the depth direction of the 86 junction box).

[0127] In order to power the plug-in modules, the bottom of the housing 1 of the telescopic socket in the related technology has three terminals for electrical connection. Each of the three plug-in modules has a solder pad for electrical connection. The three terminals are electrically connected to the three solder pads through flexible wires.

[0128] However, since the three socket modules are arranged sequentially along the extension and retraction direction of the socket body 2, when wiring, the solder pads of the socket modules that are far from the bottom of the housing 1 will be blocked by the socket modules that are close to the bottom of the housing 1. This makes it very inconvenient for the wire to be soldered to the corresponding socket module by going around the blocking socket modules.

[0129] To address the aforementioned technical issues, in some examples, such as Figure 13 and Figure 14 As shown, the bottom of the housing 1 has an L-terminal 123, an N-terminal 124, and an E-terminal 125. The plug assembly 22 includes an L-terminal socket assembly, an N-terminal socket assembly, and an E-terminal socket assembly. The L-terminal a of the L-terminal socket assembly, the N-terminal b of the N-terminal socket assembly, and the E-terminal c of the E-terminal socket assembly extend from the bottom wall 2121 of the socket housing 21. The L-terminal 123, N-terminal 124, and E-terminal 125 are electrically connected to the L-terminal a, N-terminal b, and E-terminal c, respectively, via flexible wires.

[0130] The technical solution provided in this disclosure provides that by setting the L-terminal a of the L-terminal socket assembly, the N-terminal b of the N-terminal socket assembly, and the E-terminal c of the E-terminal socket assembly to extend out of the bottom wall 2121 of the socket housing 21, the flexible wire does not need to bypass additional components when making a flexible electrical connection with the L-terminal 123, N-terminal 124, and E-terminal 125 on the bottom of the housing 1, making wiring very convenient.

[0131] The composition of the L-pole socket assembly, N-pole socket assembly, and E-pole socket assembly will be illustrated below:

[0132] In some examples, such as Figure 15 As shown, the L-pole socket assembly, N-pole socket assembly, and E-pole socket assembly each include an L-pole socket 2212a, an N-pole socket 2212b, and an E-pole socket 2212c, which are fixed to the socket base 2211. The L-pole socket 2212a has an L-pole solder tab 22121, the N-pole socket 2212b has an N-pole solder tab 22122, and the E-pole socket 2212c has an E-pole solder tab 22123. The L-pole solder tab 22121, the N-pole solder tab 22122, and the E-pole solder tab 22123 extend from the same side of the socket base 2211.

[0133] The aforementioned L-pole solder piece 22121, N-pole solder piece 22122, and E-pole solder piece 22123 can extend directly from the bottom wall 2121 of the socket housing 21 and are electrically connected to the L-pole terminal 123, N-pole terminal 124, and E-pole terminal 125 respectively via flexible wires. In this case, the aforementioned L-pole solder piece 22121, N-pole solder piece 22122, and E-pole solder piece 22123 are the L-pole terminal a, N-pole terminal b, and E-pole terminal c.

[0134] When there are multiple L-pole solder pads 22121, N-pole solder pads 22122, and E-pole solder pads 22123, in order to facilitate connection, in some examples, such as Figure 16 As shown, the socket module 221 also includes an L-pole connecting piece 2213a, an N-pole connecting piece 2213b, and an E-pole connecting piece 2213c. The L-pole connecting piece 2213a is welded to multiple L-pole solder pieces 22121 and has an L-pole terminal solder piece 22131. The N-pole connecting piece 2213b is welded to multiple N-pole solder pieces 22122 and has an N-pole terminal solder piece 22132. The E-pole connecting piece 2213c is welded to multiple E-pole solder pieces 22123 and has an E-pole terminal solder piece 22133.

[0135] Specifically, the aforementioned L-pole solder piece 22121, N-pole solder piece 22122, and E-pole solder piece 22123 can extend from the bottom wall 2121 of the socket housing 21 and are electrically connected to the L-pole terminal 123, N-pole terminal 124, and E-pole terminal 125 respectively via flexible wires. In this case, the aforementioned L-pole solder piece 22121, N-pole solder piece 22122, and E-pole solder piece 22123 are the L-pole terminal a, N-pole terminal b, and E-pole terminal c.

[0136] It should be noted that, in the above-mentioned situations requiring the use of connecting pieces, to avoid interference between different connecting pieces, in some examples, such as... Figure 16 As shown, at least two of the L-pole solder pads 22121, N-pole solder pads 22122, and E-pole solder pads 22123 have different lengths of extension relative to the socket 2211, so that the different connecting pads can be stacked one on top of the other to avoid interference.

[0137] In some examples, such as Figure 16 As shown, the length of the L-pole solder piece 22121 is greater than the lengths of the N-pole solder piece 22122 and the E-pole solder piece 22123. Therefore, the L-pole connector 2213a can be stacked with at least one of the N-pole connector 2213b or the E-pole connector 2213c, and the N-pole connector 2213b and the E-pole connector 2213c can be staggered on the same plane.

[0138] In other examples, such as Figure 17 and Figure 18 As shown, the E-pole socket 2212c is integrally formed and has an E-pole solder pad 22123. In this case, as... Figure 18 As shown, E-pole solder pad 22123 is E-pole terminal c, while L-pole terminal a and N-pole terminal b can be L-pole solder pad 22131 and N-pole solder pad 22132, respectively.

[0139] By making the E-pole socket 2212c integrally molded, the number of parts included in the socket module 221 can be reduced, making the assembly of the socket module 221 easier.

[0140] In addition, for telescopic sockets, the key technical issue is how to improve the smoothness of the socket body 2 when it extends and retracts, and reduce the possibility of the socket body 2 getting stuck.

[0141] In related technologies, telescopic sockets generally use four ordinary helical springs as elastic elements 3, and the four helical springs abut against the four corners of the socket body 2 respectively.

[0142] When a user presses one corner of the retractable socket body 2 in the relevant technology, that corner will experience greater force, while the other three corners will experience less force. The corner with greater force can push the coil spring to retract a larger distance, while the three corners with less force can push the three coil springs to retract a smaller distance. This can cause the three corners of the socket body 2 to lift up, making the socket body 2 easily jammed and hindering its smooth extension and retraction.

[0143] To solve the above-mentioned technical problems, this disclosure provides an elastic element 3, which can reduce the possibility of the socket body 2 getting stuck, making the extension and retraction of the socket body 2 smoother.

[0144] The elastic element 3 will be described below by way of example:

[0145] In some examples, such as Figure 19 As shown, the elastic element 3 includes a first support arm 31, a second support arm 32, and a first V-shaped torsion spring 33. The two ends of the first V-shaped torsion spring 33 are fixedly connected to one end of the first support arm 31 and one end of the second support arm 32, respectively. The first support arm 31 and the second support arm 32 extend in a direction opposite to the opening of the first V-shaped torsion spring 33. The first support arm 31 abuts against the receiving shell 1, and the second support arm 32 abuts against the socket body 2.

[0146] in, Figure 19 The elastic element 3 shown can be referred to as an M-shaped spring. The first V-shaped torsion spring 33 may include a spring body and two connecting rods, the spring body being helical and the two connecting rods being V-shaped.

[0147] like Figure 19 As shown, during the compression and extension of the elastic element 3, the second support arm 32 can move in an approximately translational manner. Therefore, during the process of the second support arm 32 pushing the socket body 2 to extend, and during the process of the socket body 2 pushing the second support arm 32 to compress, the forces exerted on the socket body 2 by each part of the second support arm 32 are roughly the same. The force on the socket body 2 is relatively uniform, and it is not easy for a certain corner to be concentrated with force. As a result, the extension and retraction of the socket body 2 is more stable.

[0148] For example, when a user presses the socket body 2, if the user presses one corner of the socket body 2, the force exerted on the second support arm 32 by that corner will be transmitted along the second support arm 32 (if it is an existing type). This allows the second support arm 32 to retract in an approximately translational manner, ensuring that the movement of the two corners corresponding to the second support arm 32 is approximately synchronized, making it less likely for the two corners to lift up. Furthermore, if the movement of the two corners of the socket body 2 is approximately synchronized, the force is more easily transmitted to the other two corners, significantly reducing the probability of the other two corners lifting up. Therefore, compared to telescopic sockets in related technologies, when pressing the socket body 2 of the telescopic socket provided in this embodiment, the pressing and telescopic movement of the socket body 2 is smoother and less prone to jamming.

[0149] In addition, the space occupied by the elastic element 3 within the housing 1 is relatively small. Understandably, the space occupied by the elastic element 3 is very narrow, with a width slightly larger than the diameter of the first support arm 31.

[0150] The connection methods between the first support arm 31 and the receiving shell 1, and the connection methods between the second support arm 32 and the socket body 2 will be described by way of example below:

[0151] Connection method between the first support arm 31 and the housing 1:

[0152] In some examples, such as Figure 20 and Figure 21 As shown, the bottom of the housing 1 (such as the bottom cover 12) has a limiting structure 121, which is used to limit the first support arm 31 from disengaging from the bottom of the housing 1 and to limit the elastic member 3 from rotating around the first support arm 31, thereby stabilizing the elastic member 3 in a state parallel to the extension and retraction direction of the socket body 2.

[0153] The limiting structure 121 will be described below by way of example:

[0154] In some examples, such as Figure 20 and Figure 21 As shown, the bottom of the housing 1 (such as the bottom cover 12) has a first limiting groove 1211 and a first hook 1212.

[0155] The first limiting groove 1211 has a depth. The first end 3a of the first support arm 31 is connected to the first V-shaped torsion spring 33, and the second end 3b is bent toward the second support arm 32. The first end 3a and the second end 3b of the first support arm 31 are stopped by the side wall of the first limiting groove 1211 (which is parallel to the length direction of the first support arm 31).

[0156] In this way, when the first support arm 31 tends to rotate, the first end 3a and the second end 3b will both be stopped by the side wall of the first limiting groove 1211, thereby keeping the elastic member 3 in a state parallel to the extension and retraction direction.

[0157] The present invention does not limit the bending angle of the second end 3b of the first support arm 31. In some examples, the bending angle of the second end 3b of the first support arm 31 is 90°, or referred to as a vertical bend.

[0158] like Figure 20 and Figure 21 As shown, the first hook 1212 hooks the first support arm 31, thereby preventing the first support arm 31 from detaching from the bottom of the receiving shell 1.

[0159] The following is a more detailed illustrative description of the shapes of the first limiting groove 1211 and the first latch 1212:

[0160] In some examples, such as Figure 20 As shown, there are two first limiting grooves 1211, and the first end 3a and the second end 3b of the first support arm 31 extend into the interior of the two first limiting grooves 1211 respectively. The first hook 1212 can be located between the two first limiting grooves 1211.

[0161] In other examples, such as Figure 21 As shown, the first limiting groove 1211 can also be a single one, with the first support arm 31 extending entirely into the interior of the first limiting groove 1211. The first hook 1212 is located on the side wall of the first limiting groove 1211.

[0162] For example, such as Figure 21 and Figure 22 As shown, the first limiting groove 1211 includes a first groove end 1211a, a main groove section 1211b, and a second groove end 1211c connected in sequence. The depth of the first groove end 1211a and the second groove end 1211c is greater than the depth of the main groove section 1211b. The first end 3a and the second end 3b of the first support arm 31 extend into the interior of the first groove end 1211a and the second groove end 1211c, respectively.

[0163] The technical solution provided in this disclosure, by setting the depth of the first groove end 1211a and the second groove end 1211c to be greater than the depth of the main groove section 1211b, can better restrict the rotation of the M-shaped spring.

[0164] like Figure 21 and Figure 22As shown, the first hook 1212 is connected to the side wall of the main groove section 1211b and protrudes relative to the side wall of the main groove section 1211b. Thus, the first hook 1212 can limit the first support arm 31 between the bottom of the first limiting groove 1211 and the first hook 1212.

[0165] In some examples, such as Figure 21 and Figure 22 As shown, there are two first hooks, 1212.

[0166] In some examples, such as Figure 21 and Figure 22 As shown, the two first hooks 1212 are located on the two opposite side walls of the first limiting groove 1211, and the two first hooks 1212 are staggered, thereby improving the anti-detachment effect.

[0167] In some examples, to facilitate the connection of the first support arm 31, such as Figure 21 and Figure 22 As shown, the side wall of the first limiting groove 1211, which is opposite to the first hook 1212, is recessed (as shown). Figure 22 (The part outlined by the dashed box in the image) thus creates a sufficient gap between the first hook 1212 and the side wall of the first limiting groove 1211, allowing the first support arm 31 to extend into it.

[0168] It should be further explained that the first end 3a of the first support arm 31 is stopped by the side wall of the first limiting groove 1211, which can also be considered as the first V-shaped torsion spring 33 being stopped by the first limiting groove 1211. That is, the stopped part can be considered to belong to the first support arm 31 or to the first V-shaped torsion spring 33.

[0169] Connection method between the second support arm 32 and the socket body 2:

[0170] In some examples, such as Figure 23 and Figure 24 As shown, the bottom of the socket body 2 has a second limiting groove 2120, which has a depth. The first end 3a of the second support arm 32 is connected to the first V-shaped torsion spring 33, and the second end 3b is bent toward the first support arm 31. The second support arm 32 extends into the interior of the second limiting groove 2120, and the first end 3a and the second end 3b of the second support arm 32 are stopped by the side wall of the second limiting groove 2120.

[0171] Thus, when the second support arm 32 tends to rotate, both the first end 3a and the second end 3b will be stopped by the side wall of the second limiting groove 2120, thereby keeping the elastic member 3 in a state parallel to the extension direction. The cooperation of the first limiting groove 1211 and the second limiting groove 2120 can more stably keep the elastic member 3 in a state parallel to the extension direction.

[0172] The present invention does not limit the bending angle of the second end 3b of the second support arm 32. In some examples, the bending angle of the second end 3b of the second support arm 32 is 90°, or referred to as a vertical bend.

[0173] Furthermore, to prevent the second support arm 32 from detaching from the bottom of the socket body 2, in some examples, such as... Figure 24 As shown, the bottom of the socket body 2 also has a second hook 2122. The second hook 2122 is connected to the side wall of the second limiting groove 2120, and the second support arm 32 is located between the bottom of the second limiting groove 2120 and the second hook 2122.

[0174] It should be further explained that the first end 3a of the second support arm 32 is stopped by the side wall of the second limiting groove 2120, which can also be considered as the first V-shaped torsion spring 33 being stopped by the second limiting groove 2120. That is, the stopped part can be considered to belong to the second support arm 32 or to the first V-shaped torsion spring 33.

[0175] In order to enable the first support arm 31 and the second support arm 32 to move in a manner closer to translation, in some examples, such as Figure 25 As shown, the elastic element 3 also includes a second V-shaped torsion spring 34. The two ends of the second V-shaped torsion spring 34 are fixedly connected to the other end of the first support arm 31 and the other end of the second support arm 32, respectively, and the opening direction of the second V-shaped torsion spring 34 is opposite to the opening direction of the first V-shaped torsion spring 33.

[0176] in, Figure 25 The elastic element 3 shown can be referred to as a double M-shaped spring. The second V-shaped torsion spring 34 may include a spring body and two connecting rods, the spring body being helical and the two connecting rods being V-shaped.

[0177] The technical solution provided in this disclosure connects both ends of the first support arm 31 and the second support arm 32 to V-shaped torsion springs, so that both ends of the first support arm 31 and the second support arm 32 are supported by V-shaped torsion springs. This makes the force on the first support arm 31 and the second support arm 32 more uniform, and the first support arm 31 and the second support arm 32 can move in a manner closer to translation.

[0178] In some examples, the first support arm 31 and the second support arm 32 are rod-shaped.

[0179] In other examples, such as Figure 26 As shown, one or both of the first support arm 31 and the second support arm 32 include at least two mutually bent support segments, and the at least two mutually bent support segments abut against the receiving shell 1 or the socket body 2.

[0180] The technical solution provided in this disclosure, by setting the first support arm 31 and / or the second support arm 32 to include at least two mutually bent support segments, changes the contact between the first support arm 31 and the housing 1 from a straight line contact to a broken line contact, and / or changes the contact between the second support arm 32 and the socket body 2 from a straight line contact to a broken line contact. As a result, the contact between the elastic element 3 and the housing 1 and the socket body 2 is more stable, which is more conducive to the limiting of the elastic element 3 and the smooth lifting and lowering of the socket body 2.

[0181] The embodiments disclosed herein do not limit the shape of at least two mutually bent support segments. The following is an exemplary description:

[0182] In some examples, such as Figure 26 As shown, at least two mutually bent support segments include a first support segment 311, a second support segment 312, and a third support segment 313 connected in sequence. The first support segment 311 and the third support segment 313 are both bent relative to the second support segment 312 and are located on different sides of the second support segment 312. The first support segment 311, the second support segment 312, and the third support segment 313 all abut against the receiving shell 1 or the socket body 2.

[0183] In some examples, the first support segment 311 is parallel to the third support segment 313.

[0184] In some examples, such as Figures 27-29 As shown, the projections of the first support segment 311 and the third support segment 313 along the length direction (X direction) of the elastic member 3 at least partially overlap.

[0185] For ease of description, the following defines several dimensions:

[0186] like Figures 27-29 As shown, the dimension L of the support arm (first support arm 31 or second support arm 32) along the Y direction can be called the width of the support arm.

[0187] The length of the projection of the first support segment 311 along the length direction (i.e., the X direction) of the elastic member 3 is L1, and the length of the projection of the third support segment 313 along the length direction (i.e., the X direction) of the elastic member 3 is L2.

[0188] like Figure 27 and Figure 28 As shown, when the first support segment 311 and the third support segment 313 are parallel to the Y direction, L1 is the length of the first support segment 311 and L2 is the length of the third support segment 313.

[0189] The technical solution provided in this disclosure involves setting the projections of the first support segment 311 and the third support segment 313 along the length direction (i.e., the X direction) of the elastic member 3 to at least partially overlap, such that the width L of the support arm is less than the sum of L1 and L2. Since L1 and L2 are at most the lengths of the first support segment 311 and the third support segment 313, L is less than the sum of the lengths of the first support segment 311 and the third support segment 313.

[0190] In this way, by rationally designing the lengths of the first support segment 311 and the third support segment 313, it is possible to avoid the situation where the width L of the support arm is too large, resulting in the elastic element 3 occupying a large space in the Y direction, thus limiting the application range of the elastic element 3.

[0191] Below, with Figures 27-29 For example, a more detailed illustrative description of the support arm is provided:

[0192] In some examples, such as Figure 27 As shown, one end of the first support segment 311 is aligned with the bend of the third support segment 313, and one end of the third support segment 313 is aligned with the bend of the first support segment 311. That is, the projections of the first support segment 311 and the third support segment 313 along the X direction completely coincide.

[0193] In this case, L1 and L2 are equal, and the width L of the support arm is equal to L1 (L2).

[0194] In other examples, such as Figure 28 and Figure 29 As shown, the projection portions of the first support segment 311 and the third support segment 313 along the X direction coincide.

[0195] In this case, the width L of the support arm is equal to L1 + L2 - L3, where L3 is the length of the overlapping portion of the projections of the first support segment 311 and the third support segment 313 along the X direction.

[0196] To ensure that the projections of the first support segment 311 and the third support segment 313 along the length direction (i.e., the X direction) of the elastic member 3 at least partially overlap, in some examples, such as Figure 27 and Figure 28 As shown, when the first support segment 311 and the third support segment 313 are parallel to the width direction (i.e., the Y direction) of the elastic member 3, the included angle α between the first support segment 311 and the second support segment 312 is less than or equal to 90°, and the included angle α between the third support segment 313 and the second support segment 312 is less than or equal to 90°.

[0197] It should be noted that when α equals 90°, the projection of the connection between the first support segment 311 and the second support segment 312 along the X direction coincides with the projection of the connection between the third support segment 313 and the second support segment 312.

[0198] Of course, in other examples, such as Figure 29 As shown, if the first support segment 311 and the third support segment 313 are not parallel to the width direction of the elastic member 3, the included angle α between the first support segment 311 and the second support segment 312 can also be greater than 90°, and the included angle α between the third support segment 313 and the second support segment 312 can also be greater than 90°.

[0199] The lengths of the first support segment 311 and the third support segment 313 are not limited in this embodiment. The following is an exemplary description:

[0200] In some examples, the lengths of the first support segment 311 and the third support segment 313 are equal, and both are less than the length of the second support segment 312. For example, ... Figure 27 As shown, L1=L2.

[0201] For example, the lengths of the first support segment 311 and the third support segment 313 are greater than or equal to 2d and less than or equal to 4d, where d is the diameter of the first support arm 31 and the second support arm 32.

[0202] The technical solution provided in this disclosure facilitates the processing of the elastic element 3 by setting the lower limit of the length of the first support segment 311 and the length of the third support segment 313 to 2d, and makes the first support arm 31 and the receiving shell 1, and / or the second support arm 32 and the socket body 2 have sufficient contact points in the length direction of the first support segment 311 and the third support segment 313, so that the contact stability is better.

[0203] By setting the upper limit of the length of the first support segment 311 and the length of the third support segment 313 to 4d, the width of the elastic element 3 in the Y direction is not too large, thus avoiding the situation where the elastic element 3 occupies too much space in the Y direction, making it unsuitable for use in telescopic sockets.

[0204] For example, if the diameter d of the first support arm 31 and the second support arm 32 is 0.5 mm, then the length of the first support segment 311 and the length of the third support segment 313 are greater than or equal to 1 mm and less than or equal to 2 mm.

[0205] In some examples, the width L of the first support arm 31 and the second support arm 32 is greater than or equal to 2d and less than or equal to 8d.

[0206] It should be noted that, in addition to the aforementioned technical solution where the support arm includes three mutually bent support segments, in other examples, such as... Figure 30 As shown, the support arm includes a fourth support segment 314 and a fifth support segment 315 that are bent at each other.

[0207] In some examples, such as Figure 30 As shown, the length of the fourth support segment 314 is equal to the length of the fifth support segment 315.

[0208] It should be noted that, in the elastic element 3 provided in this embodiment, both the first support arm 31 and the second support arm 32 may include at least two mutually bent support segments (e.g. Figure 26 As shown in the figure, it is also possible that only the first support arm 31 or the second support arm 32 includes at least two mutually bent support segments, and this disclosure does not limit this.

[0209] The embodiments disclosed herein do not limit the number and position of the elastic elements 3. In some examples, such as Figure 23 As shown, there are two elastic elements 3, which are located on opposite sides of the housing 1.

[0210] This disclosure does not limit the location of the two elastic elements 3 on either side of the receiving shell 1. In some examples, such as when the retractable socket is a wall socket, ... Figure 3 As shown, the two elastic elements 3 are located on the upper and lower sides of the housing 1. In other examples, the two elastic elements 3 may also be located on the left and right sides of the housing 1.

[0211] In addition, to further improve the stability of the socket body 2 during pressing and extending, in some examples, such as Figure 31 and Figure 32 As shown, the telescopic socket also includes multiple guide posts 4, which are fixed inside the housing 1. The guide posts 4 are parallel to the telescopic direction of the socket body 2, and the socket body 2 is slidably connected to the multiple guide posts 4.

[0212] This disclosure does not limit the number or position of the guide posts 4. In some examples, such as Figure 30 As shown, there are two guide posts 4, which are located at opposite corners of the housing 1.

[0213] Correspondingly, such as Figure 30 As shown, each of the two opposite corners of the socket body 2 has a sliding connection part 2112. The sliding connection part 2112 protrudes relative to the side wall of the socket body 2 and is slidably connected to the guide post 4.

[0214] In other examples, such as Figure 32 As shown, there are four guide pillars 4, which are located at the four corners of the housing 1.

[0215] Correspondingly, such as Figure 32As shown, each of the four corners of the socket body 2 has a sliding connection part 2112. The sliding connection part 2112 protrudes from the side of the socket body 2 and is slidably connected to the guide post 4.

[0216] The above description is merely an optional embodiment of this disclosure and is not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. A telescopic socket, characterized in that, The telescopic socket includes a housing (1), a socket body (2), and an elastic element (3); The housing (1) is used to install inside the 86-type junction box. The housing (1) has two locking devices (122) located at two opposite corners of the housing (1). The socket body (2) is telescopically installed in the housing (1). The socket body (2) includes a socket housing (21), a plug-in assembly (22), and two resetters (23). The socket housing (21) includes a bottom wall, a top wall, and four side walls (2111). The bottom wall, the top wall, and the four side walls (2111) form a receiving cavity. The plug-in assembly is disposed inside the receiving cavity. The bottom wall is disposed opposite to the bottom wall of the receiving housing. At least one of the side walls (2111) is provided with a plug hole. The plug assembly (22) is located inside the socket housing (21), at least a portion of each resetter (23) is located inside the socket housing (21) and between the plug assembly (22) and the side wall (2111) of the socket housing (21), the locking portion of each resetter (23) is exposed on the bottom wall (2121) of the socket housing (21), and two resetters (23) are located at two opposite corners of the socket housing (21) and are respectively opposite to the two locking devices (122); The elastic element (3) includes a first support arm (31), a second support arm (32) and a first V-shaped torsion spring (33). The two ends of the first V-shaped torsion spring (33) are fixedly connected to one end of the first support arm (31) and one end of the second support arm (32), respectively. The first support arm (31) and the second support arm (32) extend in the direction away from the opening of the first V-shaped torsion spring (33). The first support arm (31) abuts against the receiving shell (1) and the second support arm (32) abuts against the socket body (2).

2. The retracting socket of claim 1, wherein, The resetter (23) is fixedly connected to the socket housing (21); or, The resetter (23) is fixedly connected to the plug-in assembly (22); or, The resetter (23) is clamped between the socket housing (21) and the plug assembly (22).

3. The retracting socket of claim 1, wherein, The plug assembly (22) includes a socket module (221), which includes a first plug part (221a), a second plug part (221b) and a third plug part (221c). The first plug part (221a) and the second plug part (221b) face opposite directions and are connected at their backs. The back of the third plug part (221c) is connected to the side of the first plug part (221a) and the side of the second plug part (221b). One of the two resetters (23) is located on the side of the third plug (221c) and away from the second plug (221b), and the other is located on the side of the second plug (221b) away from the third plug (221c).

4. The retracting socket of claim 1, wherein, The plug-in assembly (22) includes a socket module (221) and a low-voltage module (223). The socket module (221) includes a first plug-in portion (221a) and a second plug-in portion (221b). The first plug-in portion (221a) and the second plug-in portion (221b) are oriented in opposite directions and connected at their backs. The low-voltage module (223) is located on the side of the first plug-in portion (221a) and the side of the second plug-in portion (221b). One of the two resetters (23) is located on the side of the low-voltage module (223) and away from the second plug (221b), and the other is located on the side of the second plug (221b) away from the low-voltage module (223).

5. The retracting socket of any one of claims 1-4, wherein, The bottom of the housing (1) has an L terminal (123), an N terminal (124) and an E terminal (125). The plug assembly (22) includes an L-pole socket assembly, an N-pole socket assembly and an E-pole socket assembly, wherein the L-pole terminal (a) of the L-pole socket assembly, the N-pole terminal (b) of the N-pole socket assembly and the E-pole terminal (c) of the E-pole socket assembly extend from the bottom wall (2121) of the socket housing (21); The L terminal (123), N terminal (124), and E terminal (125) are electrically connected to the L terminal (a), N terminal (b), and E terminal (c) respectively via flexible wires.

6. The retracting socket of any one of claims 1-4, wherein, The elastic element (3) also includes a second V-shaped torsion spring (34). The two ends of the second V-shaped torsion spring (34) are fixedly connected to the other end of the first support arm (31) and the other end of the second support arm (32), respectively, and the opening direction of the second V-shaped torsion spring (34) is opposite to the opening direction of the first V-shaped torsion spring (33).

7. The retracting socket of claim 6, wherein, One or both of the first support arm (31) and the second support arm (32) include at least two mutually bent support segments, and the at least two mutually bent support segments abut against the receiving shell (1) or the socket body (2).

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