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 plurality of plug-in assemblies and a reset device. The plurality of plug-in assemblies are respectively opposite to a plurality of side walls of the socket shell, and the plurality of plug-in assemblies form a containing space therebetween. At least a part of the reset device extends into the interior of the containing space, and the reset device is opposite to the lock. In the telescopic socket provided by the present disclosure, since the reset device extends into the containing space surrounded by the plurality of plug-in assemblies and is not blocked by the plug-in assemblies, the length of the reset device extending into the interior of the socket shell can be larger, and the length of the exposed part of the reset device can be smaller. Therefore, the length of the socket body in the telescopic direction is reduced, so that the telescopic socket can be installed in the existing 86 dark box.

Description

[0001] The present disclosure claims priority to the Chinese patent application No. 202210476088.9, filed on April 29, 2022, and entitled "Telescopic socket, socket body and socket module", the entire content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present disclosure relates to the technical field of sockets, in particular to a telescopic socket. BACKGROUND

[0003] The telescopic socket embedded in the wall generally includes a containing shell, a socket body and an elastic piece. The containing shell is used to be installed in the box of the wall. The socket body is telescopically installed in the containing shell. The elastic piece is located between the shell body of the containing shell and the bottom of the socket body.

[0004] The socket body in the related art includes a socket shell, three socket modules and a restorer. The three socket modules are located inside the socket shell and are arranged in sequence along the telescopic direction of the socket body. The restorer is located on the side of the three socket modules facing the shell bottom of the containing shell. The restorer is used to cooperate with the lock of the bottom of the containing shell.

[0005] Due to being blocked by the socket module, the size of the restorer extending into the inside of the socket shell is limited, and the size of the exposed part of the restorer is relatively long. This makes the size of the socket body in the telescopic direction relatively long, and requires the depth of the containing shell and the box for installing the containing shell to be relatively large, so that the telescopic socket cannot be installed in the 86 box. SUMMARY

[0006] The present disclosure provides a telescopic socket, which can solve the technical problems existing in the related art. The technical scheme of the telescopic socket is as follows:

[0007] The present disclosure provides a telescopic socket, which includes a containing shell, a socket body and an elastic piece.

[0008] The containing shell has a lock. The socket body is telescopically installed in the containing shell.

[0009] The socket body includes a socket shell, a plurality of plug-in assemblies and a restorer. The plurality of plug-in assemblies are respectively opposite to a plurality of side walls of the socket shell. A containing space is formed between the plurality of plug-in assemblies. At least a part of the restorer extends into the inside of the containing space. The restorer is opposite to the lock.

[0010] The elastic piece is respectively abutted with the containing shell and the socket body.

[0011] In a possible implementation, a part of the resetter is located inside the socket shell, and a lock head part of the resetter is exposed outside a bottom wall of the socket shell.

[0012] In a possible implementation, the resetter is located inside the socket shell, and a bottom wall of the socket shell has an opening corresponding to a part of the resetter for the lock to pass through.

[0013] In a possible implementation, the plug-in assembly is four, and the four plug-in assemblies are respectively opposite to four side walls of the socket shell.

[0014] In a possible implementation, at least one pair of two corner positions of the socket shell has a receiving cavity.

[0015] The elastic members are multiple, and each of the elastic members extends into the inside of one of the receiving cavities.

[0016] In a possible implementation, the plug-in assembly is four, and corner positions outside the four plug-in assemblies have gaps, and each of the receiving cavities is located in one of the gaps.

[0017] In a possible implementation, the receiving shell has multiple mounting columns, and the multiple mounting columns respectively extend into the inside of the multiple elastic members.

[0018] When the retractable socket is in a retracted state, the multiple mounting columns respectively extend into the multiple receiving cavities.

[0019] In a possible implementation, at least one pair of two corner positions of the receiving shell is provided with a first guide structure.

[0020] The socket shell has multiple second guide structures, and each of the second guide structures cooperates with one of the first guide structures.

[0021] In a possible implementation, the first guide structure is a guide column, and the second guide structure is a guide hole.

[0022] In a possible implementation, the first guide structure is a guide rack, and the second guide structure is a guide gear.

[0023] In a possible implementation, a top of an inner wall of the receiving shell has a notch.

[0024] The socket body further includes an elastic clamping block, the elastic clamping block is connected with the socket shell, and is located at a bottom of the socket shell.

[0025] The elastic clamping block can be telescoped relative to the side wall of the socket shell, and when the telescopic socket is in the extended state, the elastic clamping block extends into the interior of the slot.

[0026] In a possible implementation, the socket shell comprises a shell and a pressing plate;

[0027] The shell has an opening facing the accommodating shell, and the interior of the shell has a plurality of sets of limiting strips extending in the telescopic direction, and each plug-in assembly is inserted between a set of limiting strips;

[0028] The pressing plate closes the opening of the shell, and locks a plurality of plug-in assemblies in corresponding sets of limiting strips respectively.

[0029] In a possible implementation, the bottom of the accommodating shell has an L-pole terminal post and an N-pole terminal post;

[0030] The socket body further comprises an L-pole connecting sheet and an N-pole connecting sheet, the L-pole connecting sheet is electrically connected with the L-pole bushing in a plurality of plug-in assemblies, and the N-pole connecting sheet is electrically connected with the N-pole bushing in a plurality of plug-in assemblies;

[0031] The L-pole connecting sheet has an L-pole terminal welding sheet, the N-pole connecting sheet has an N-pole terminal welding sheet, the L-pole terminal welding sheet and the N-pole terminal welding sheet are exposed on the bottom wall of the socket shell, and are electrically connected with the L-pole terminal post and the N-pole terminal post through soft wires respectively.

[0032] In a possible implementation, the L-pole bushing of a plurality of plug-in assemblies each has an L-pole welding sheet, a plurality of L-pole welding sheets are exposed on the bottom wall of the socket shell, and are electrically connected with the L-pole connecting sheet;

[0033] The N-pole bushing of a plurality of plug-in assemblies has an N-pole welding sheet, a plurality of N-pole welding sheets are exposed on the bottom wall of the socket shell, and are electrically connected with the N-pole connecting sheet.

[0034] In a possible implementation, the bottom of the accommodating shell further has an E-pole terminal post;

[0035] The socket body further comprises an E-pole connecting sheet, the E-pole connecting sheet is electrically connected with the E-pole bushing in a plurality of plug-in assemblies;

[0036] The E-pole connecting sheet has an E-pole terminal welding sheet, the E-pole terminal welding sheet is exposed on the bottom wall of the socket shell, and is electrically connected with the E-pole terminal post through a soft wire.

[0037] In a possible implementation, the accommodating shell is used for being mounted in the interior of a 86 recessed box.

[0038] The technical solutions provided by the disclosure have at least the following beneficial effects:

[0039] The technical solutions provided by the disclosure have at least the following beneficial effects:

[0040] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0041] The accompanying drawings incorporated into the specification and forming a part thereof illustrate embodiments consistent with the present disclosure and together with the description serve to explain the principles of the disclosure. In the drawings:

[0042] Figure 1 is a schematic view of a retractable socket shown by an embodiment of the disclosure;

[0043] Figure 2 is a schematic view of a retractable socket shown by an embodiment of the disclosure;

[0044] Figure 3 is a schematic view of a retractable socket shown by an embodiment of the disclosure;

[0045] Figure 4 is a schematic view of a socket body shown by an embodiment of the disclosure;

[0046] Figure 5 is an exploded view of a socket body shown by an embodiment of the disclosure;

[0047] Figure 6 is an exploded view of a plug assembly provided by an embodiment of the disclosure;

[0048] Figure 7 is a schematic view of a socket body provided by an embodiment of the disclosure;

[0049] Figure 8 is a schematic view of a connection mode of an elastic member and a socket body provided by an embodiment of the disclosure;

[0050] Figure 9 is a schematic view of an internal structure of a socket body provided by an embodiment of the disclosure;

[0051] Figure 10 is a schematic view of a containing shell provided by an embodiment of the disclosure;

[0052] Figure 11is a sectional view of a telescopic socket provided by an embodiment of the present disclosure;

[0053] Figure 12 is an exploded view of a telescopic socket provided by an embodiment of the present disclosure;

[0054] Figure 13 is a process schematic diagram of compression and elongation of a M-shaped spring shown by an embodiment of the present disclosure;

[0055] Figure 14 is a schematic diagram of a containing shell shown by an embodiment of the present disclosure;

[0056] Figure 15 is a schematic diagram of a cooperation mode of a first guide structure and a second guide structure shown by an embodiment of the present disclosure;

[0057] Figure 16 is a schematic diagram of a socket shell provided by an embodiment of the present disclosure;

[0058] Figure 17 is a schematic diagram of a plug-in assembly provided by an embodiment of the present disclosure;

[0059] Figure 18 is a schematic diagram of an internal structure of a socket body provided by an embodiment of the present disclosure;

[0060] Figure 19 is a schematic diagram of a socket body provided by an embodiment of the present disclosure;

[0061] Figure 20 is a schematic diagram of a telescopic socket provided by an embodiment of the present disclosure;

[0062] Figure 21 is a schematic diagram of an elastic clamping block provided by an embodiment of the present disclosure;

[0063] Figure 22 is a schematic diagram of an elastic clamping block provided by an embodiment of the present disclosure;

[0064] Figure 23 is a schematic diagram of a wiring position of a telescopic socket provided by an embodiment of the present disclosure;

[0065] Figure 24 is a schematic diagram of a wiring mode of a telescopic socket provided by an embodiment of the present disclosure.

[0066] Legend

[0067] 1, containing shell, 11, mounting frame, 12, bottom cover, 120, mounting column, 122, lock, 123, L-pole terminal post, 124, N-pole terminal post, 125, E-pole terminal post, 13, panel, 14, slot;

[0068] 2, socket body, 21, socket shell, 210, accommodating cavity, 211, outer shell, 2110, insertion hole, 2111, side wall, 2112, second guide structure, 2113, limiting strip, 2113a, first limiting strip, 2113b, second limiting strip, 2113c, third limiting strip, 212, pressing plate, 22, plug-in assembly, 220, fourth limiting strip, 221, plug sleeve module, 2211, plug sleeve seat, 2212, plug sleeve, 22121, L-pole welding piece, 22122, N-pole welding piece, 22123, E-pole welding piece, 2213a, L-pole connecting piece, 2213b, N-pole connecting piece, 22131, L-pole wiring welding piece, 22132, N-pole wiring welding piece, 222, protection door, 23, restorer, 24, elastic clamping block, 241, support frame, 242, clamping block, 2421, cut-off plane, 2422, guide inclined surface, 243, telescopic elastic member;

[0069] 3, elastic member, 31, first support arm, 32, second support arm;

[0070] 4, first guide structure;

[0071] 5, dark box.

[0072] The specific embodiments of the present disclosure have been shown by the above drawings, and will be described in more detail hereinafter. These drawings and textual descriptions are not intended to limit the scope of the concept of the present disclosure by any means, but to illustrate the concept of the present disclosure to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0073] In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the embodiments of the present disclosure will be described in further detail below with reference to the drawings.

[0074] The terms used in the embodiments of the present disclosure are used to describe only the embodiments of the present disclosure and are not intended to limit the present disclosure. Unless otherwise defined, technical terms or scientific terms used herein have the same meaning as would be understood by those skilled in the art to which the present disclosure belongs. The terms "first", "second", "third", and the like used in the specification of the present patent application and claims are not intended to denote any sequence, quantity, or importance, but are used to distinguish different components. Also, the terms "one" or "a" or the like are not intended to denote a quantity restriction, but denote the presence of at least one. The terms "include" or "comprise" or the like mean that the elements or objects before the "include" or "comprise" encompass the elements or objects listed after the "include" or "comprise" and equivalents thereof, and do not exclude other elements or objects. The terms "connected" or "coupled" or the like are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right", and the like are used only to indicate relative positional relationships, and when the absolute positions of the described objects are changed, the relative positional relationships can also be changed accordingly.

[0075] The retractable socket embedded in the wall generally comprises a containing shell 1, a socket body 2 and a spring 3. The socket body 2 is retractably installed inside the containing shell 1, and one of the containing shell 1 and the socket body 2 has a resetter 23, and the other has a lock 122. The spring 3 is located between the bottom of the containing shell 1 and the bottom of the socket body 2.

[0076] When the retractable socket is not needed, the user presses the socket body 2, so that the resetter 23 is locked with the lock 122, the spring 3 is kept in the compressed state, and the socket body 2 is hidden inside the containing shell 1 (as shown in the left part of Figure 1 When the retractable socket is needed, the user presses the socket body 2, so that the resetter 23 is unlocked with the lock 122, and then the socket body 2 is extended under the elastic force of the spring 3, and the socket holes on the socket body 2 are exposed, so that the user can normally use the retractable socket (as shown in the right part of Figure 1 ).

[0077] As shown in Figure 1 and Figure 2 , the retractable socket is generally installed in a recess box 5 embedded in the wall, such as a 86 recess box (the outer dimensions are 86mm x 86mm). The 86 recess box is a standard size recess box and is widely used in daily life.

[0078] In order to make the retractable socket suitable for the 86 recess box and improve the applicability of the retractable socket, it is required that the size of the retractable socket cannot be too large.

[0079] Specifically, the 86 cassette is relatively generous in the height direction (or length direction) and the width direction, but is relatively tight in the depth direction, only 45 mm. Therefore, how to reduce the size of the retractable socket in the depth direction of the 86 cassette (i.e., the extension direction of the socket body 2 of the retractable socket) is a key technical problem.

[0080] The size of the retractable socket is mainly determined by the socket body 2. The socket body 2 in the related art includes a socket shell 21, three plug-in module groups (each plug-in module group corresponds to a phase), and a resetter 23. The three plug-in module groups are located inside the socket shell 21 and are arranged in sequence along the extension direction of the socket body 2 (i.e., the depth direction of the 86 cassette). The resetter 23 is located on the side of the three plug-in module groups facing the shell bottom of the accommodating shell 1.

[0081] Due to the blocking of the plug-in module group, the size of the resetter 23 extending into the interior of the socket shell 21 is limited, so that the size of the exposed part of the resetter 23 is relatively long, the size of the socket body 2 in the depth direction of the 86 cassette is relatively large, and the size of the retractable socket in the depth direction of the 86 cassette is relatively large.

[0082] This can cause the retractable socket in the related art to be unable to be installed inside the 86 cassette, or although it can be installed inside the 86 cassette, it is necessary to reduce the size of the remaining part of the retractable socket in the depth direction of the 86 cassette as much as possible, affecting the reliability of the retractable socket.

[0083] In view of the above technical problems, the embodiments of the present disclosure provide a retractable socket, as shown in Figures 3-5 The retractable socket includes an accommodating shell 1, a socket body 2, and an elastic member 3. The accommodating shell 1 has a locking device 122, and the socket body 2 is telescopically installed in the accommodating shell 1. The socket body 2 includes a socket shell 21, a plug-in assembly 22, and a resetter 23. The plug-in assembly 22 is a plurality of plug-in assemblies 22, the plurality of plug-in assemblies 22 are respectively opposite to a plurality of side walls 2111 of the socket shell 21, a containing space is formed between the plurality of plug-in assemblies 22, at least a part of the resetter 23 extends into the interior of the containing space, and the resetter 23 is opposite to the locking device 122. The elastic member 3 is respectively abutted with the accommodating shell 1 and the socket body 2.

[0084] Among them, the retractable socket provided by the embodiments of the present disclosure is used to be installed in the 86 cassette, but is not limited thereto.

[0085] As shown in Figure 4 and Figure 5 The side wall 2111 opposite to the plug-in assembly 22 on the socket shell 21 has a socket hole 2110, and the side wall 2111 can be parallel to the extension direction of the socket body 2. The plug-in assembly 22 is opposite to the side wall 2111, which can also be understood as that the plug-in assembly 22 is parallel to the side wall 2111, or the plug-in assembly 22 is parallel to the extension direction of the socket body 2.

[0086] The socket shell 21 is used for protecting and supporting the plug-in assembly 22 and the resetter 23. In some examples, as shown in Figure 5 The socket shell 21 includes a shell 211 and a pressing plate 212, and the pressing plate 212 is fixedly connected with the shell 211. The pressing plate 212 is opposite to the bottom of the housing 1, and the shell 211 has the side wall 2111 described above.

[0087] The plug-in assembly 22 is used for being connected with a plug. The type of the plug-in assembly 22 is not limited in the embodiments of the present disclosure. In some examples, the plug-in assembly 22 is a plug-in assembly for connecting a three-phase plug and a two-phase plug. In another example, the plug-in assembly 22 is a weak current module for connecting a Universal Serial Bus (USB) plug and the like. In another example, part of the plug-in assembly 22 is a plug-in assembly, and another part of the plug-in assembly 22 is a weak current module.

[0088] The technical scheme provided by the embodiments of the present disclosure is that the plurality of plug-in assemblies 22 are respectively opposite to the plurality of side walls 2111 of the socket shell 21, and the plurality of plug-in assemblies 22 form a containing space. In this way, the resetter 23 can extend into the inside of the containing space, and because there is no blockage of the plug-in assembly 22, the length of the resetter 23 extending into the inside of the socket shell 21 can be larger, so that the length of the exposed part of the resetter 23 can be smaller, thereby reducing the size of the socket body 2 in the depth direction of the 86 socket, so that the extension socket in which the socket body 2 is located can be applied in the 86 socket.

[0089] Because there is no blockage of the plug-in assembly 22, the length of the resetter 23 extending into the inside of the socket shell 21 can be set arbitrarily according to actual needs.

[0090] In some examples, as shown in Figure 4 and Figure 5 A part of the resetter 23 is located in the inside of the socket shell 21, and the lock head part of the resetter 23 is exposed outside the bottom wall 2121 (i.e. the pressing plate 212) of the socket shell 21.

[0091] The lock head part is used for being locked with the lock 122.

[0092] In another example, the resetter 23 is located in the inside of the socket shell 21, and the bottom wall 2121 of the socket shell 21 has an opening hole corresponding to the part of the resetter 23 for the lock 122 to pass through. For this case, when the lock 122 is locked with the resetter 23, the lock 122 needs to pass through the opening hole.

[0093] The number of the plug-in assemblies 22 is not limited in the embodiments of the present disclosure. In some examples, as shown inFigure 5 As shown, each of the four side walls 2111 of the socket housing 21 has a socket hole 2110, and the four plug-in assemblies 22 are provided, and the resetter 23 is located at the center of the four plug-in assemblies 22.

[0094] Among them, the four plug-in assemblies 22 are respectively opposite to the four side walls 2111.

[0095] Next, the plug-in assembly 22 is exemplarily described:

[0096] In some examples, as shown in Figure 6 The plug-in assembly 22 includes a plug sleeve module 221 and a protection door 222, the protection door 222 is fixedly connected with the plug sleeve module 221, and is opposite to the side wall 2111 of the socket housing 21.

[0097] The plug sleeve module 221 includes a plug sleeve base 2211 and a plug sleeve 2212, and the plug sleeve 2212 is fixed to the plug sleeve base 2211. The plug sleeve base 2211 can be integrally formed.

[0098] In addition to the length of the exposed part of the resetter 23 in the telescopic direction affecting the size of the telescopic socket in the depth direction of the cassette 5, the arrangement of the elastic member 3 also affects the depth of the cassette 5.

[0099] In order to stabilize the elastic member 3, in the related art, spring mounting columns are arranged on the bottom of the containing shell 1 and the bottom of the socket body 2, and the two ends of the elastic member 3 are sleeved on the spring mounting columns. When the telescopic socket is in the retracted state, a certain space needs to be maintained between the bottom of the socket body 2 and the bottom of the containing shell 1, which is used to accommodate the two spring mounting columns and the spring in the compressed state.

[0100] However, if the length of the spring mounting column is too long, the space that needs to be arranged between the bottom of the socket body 2 and the bottom of the containing shell 1 will be too large, which will make the depth of the containing shell 1 larger. If the length of the spring mounting column is too small, the elastic member 3 is prone to shaking.

[0101] In order to solve this technical problem, in some examples, as shown in Figure 8 and Figure 9 At least one pair of diagonal corner positions of the socket housing 21 has a containing cavity 210, the elastic member 3 is multiple, and each elastic member 3 extends into the inside of one containing cavity 210.

[0102] In this way, the shaking of the elastic member 3 is limited by the containing cavity 210, and it is no longer required to maintain the space between the bottom of the socket housing 21 and the bottom of the containing shell 1, which is beneficial to reduce the size of the telescopic socket in the depth direction of the cassette 5.

[0103] And, in the retracted state, the elastic member 3 does not have to be in the limit compression state, which is beneficial to improve the service life and reliability of the elastic member 3.

[0104] In some examples, as shown in Figure 10 The four plug-in assemblies 22 have clearance at the corner positions of the outer sides, and each accommodating cavity 210 is located in one clearance.

[0105] The technical scheme provided by the embodiments of the present disclosure is that the plurality of plug-in assemblies 22 are arranged opposite to the side wall 2111 of the socket shell 21, instead of being arranged in a stacking manner in the extension direction, so that the clearance at the corner position is formed to set the accommodating cavity 210.

[0106] In some examples, as shown in Figure 10 The accommodating cavity 210 is formed by surrounding the arc-shaped plate and the inner wall of the socket shell 21. Of course, in other examples, the arc-shaped plate can not be provided, and the accommodating cavity 210 can be formed by surrounding the plug-in assembly 22 and the socket shell 21.

[0107] The embodiments of the present disclosure do not limit the limiting manner of the elastic member 3 at the bottom of the accommodating shell 1, and in some examples, the bottom of the accommodating shell 1 can also be provided with an accommodating cavity for accommodating the elastic member 3.

[0108] In other examples, as shown in Figure 10 and Figure 11 The accommodating shell 1 has a plurality of mounting columns 120, and the plurality of mounting columns 120 respectively extend into the interiors of the plurality of elastic members 3. When the extension socket is in the retracted state, the plurality of mounting columns 120 respectively extend into the plurality of accommodating cavities 210.

[0109] Among them, Figure 11 One of the elastic members 3 is hidden.

[0110] The technical scheme provided by the embodiments of the present disclosure is that due to the existence of the accommodating cavity 210, the mounting column 120 can extend into the interior of the accommodating cavity 210 in the retracted state, so that the length of the mounting column 120 can be longer, which is more beneficial to the stability of the elastic member 3.

[0111] In addition to the above-mentioned setting of the elastic member 3 as a columnar spring, in other examples, as shown in Figure 12 The elastic member 3 can also be set as an M-shaped spring.

[0112] As Figure 13As shown, during the compression and extension of the M-shaped spring, the second support arm 32 always moves in a 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 force exerted on the socket body 2 by each part of the second support arm 32 is roughly the same. The force on the socket body 2 is relatively uniform, and it is not easy for the force to concentrate at a certain corner. As a result, the extension and retraction of the socket body 2 is more stable.

[0113] In addition, the space occupied by the M-shaped spring in the housing 1 is relatively small. Understandably, the space occupied by the M-shaped spring is narrow, with a width slightly larger than the diameter of the first support arm 31.

[0114] The embodiments disclosed herein do not limit the number and position of the elastic elements 3. In some examples, such as Figure 12 As shown, there are two elastic elements 3, which are located on opposite sides of the housing 1.

[0115] The following describes the user pressing the socket body 2:

[0116] When a user presses the socket body 2 of the telescopic socket provided in this embodiment, if one corner of the socket body 2 is pressed, the force exerted on the second support arm 32 by that corner will cause the second support arm 32 to retract in a translational manner. This ensures that the movements of at least the two corners corresponding to the second support arm 32 are approximately synchronized, preventing the two corners from lifting up. Furthermore, if the movements of the two corners of the socket body 2 are approximately synchronized, the force is more easily transmitted to the other two corners, significantly reducing the probability of the other two corners lifting up.

[0117] This disclosure does not limit the location of the two elastic members 3 on either side of the receiving shell 1. In some examples, such as... Figure 12 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.

[0118] In some examples, such as Figure 12 As shown, the two elastic elements 3 are oriented in opposite directions, thereby making the force on the socket body 2 more even. In other examples, the two elastic elements 3 may be oriented in the same direction, which is not limited in this embodiment.

[0119] The present disclosure does not limit the connection position of the elastic element 3. In some examples, such as Figure 14As shown, the accommodating shell 1 comprises a mounting frame 11, a bottom cover 12 and a panel 13. The bottom cover 12 seals an opening at the bottom of the mounting frame 11, and the panel 13 is located at the top of the mounting frame 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 with the bottom cover 12, and the second support arm 32 can be connected with the socket body 2.

[0120] In order to improve the stability of the socket body 2 when being pressed and stretched, in some examples, as shown in Figure 15 As shown, at least one pair of diagonal corner positions of the accommodating shell 1 is provided with the first guide structure 4. The socket shell 21 has a plurality of second guide structures 2112, and each second guide structure 2112 cooperates with one first guide structure 4.

[0121] The type of the first guide structure 4 and the second guide structure 2112 is not limited in the embodiments of the present disclosure, and in some examples, as shown in Figure 15 As shown, the first guide structure 4 is a guide column, and the second guide structure 2112 is a guide hole (which can also be referred to as a sliding connection part).

[0122] As shown in Figure 15 As shown, a plurality of guide columns are fixed inside the accommodating shell 1, and the guide columns are parallel to the stretching direction of the socket body 2.

[0123] The number and position of the first guide structure 4 and the second guide structure 2112 are not limited in the embodiments of the present disclosure, and in some examples, the first guide structure 4 is two, and the two first guide structures 4 are respectively located at the diagonal corner positions of the accommodating shell 1.

[0124] Correspondingly, the two diagonal corners of the socket body 2 respectively have one second guide structure 2112.

[0125] In some examples, the accommodating shell 1 is provided with the elastic member 3 at one pair of diagonal corner positions, and is provided with the first guide structure 4 at another pair of diagonal corner positions.

[0126] In some examples, as shown in Figure 15 As shown, the first guide structure 4 is four, and the four first guide structures 4 are respectively located at the four corner positions of the accommodating shell 1.

[0127] Correspondingly, as shown in Figure 15 As shown, the four corners of the socket body 2 respectively have one second guide structure 2112.

[0128] It should be noted that the guide column and the guide hole can also be replaced by a guide rack and a guide gear. That is, in other examples, the first guide structure 4 is a guide rack, and the second guide structure 2112 is a guide gear.

[0129] The guide rack is fixed inside the socket housing 21 and extends along the extension direction of the socket body 2. The guide gear is rotationally connected to the socket body 2 and meshes with the guide rack.

[0130] During the extension of the socket body 2, the plurality of guide gears must rotate synchronously, so that the socket body 2 can only extend as a whole and is not easy to get stuck.

[0131] The embodiments of the present disclosure do not limit the fixing manner of the plug-in assembly 22 inside the socket housing 21. In some examples, as shown in Figure 5 , Figures 16-18 The socket housing 21 includes a shell 211 and a pressing plate 212. The shell 211 has an opening facing the accommodating shell 1, and the inside of the shell 211 has a plurality of sets of limiting strips 2113 extending along the extension direction, and each plug-in assembly 22 is inserted between a set of limiting strips 2113. The pressing plate 212 closes the opening of the shell 211 and locks a plurality of plug-in assemblies 22 between a corresponding set of limiting strips 2113, respectively.

[0132] In some examples, as shown in Figure 16 Each set of limiting strips 2113 includes a first limiting strip 2113a, a second limiting strip 2113b, and a third limiting strip 2113c. The first limiting strip 2113a and the second limiting strip 2113b are oppositely arranged and close to the same side wall 2111 of the shell 211. The third limiting strip 2113c is opposite to the space between the first limiting strip 2113a and the second limiting strip 2113b and is away from the side wall 2111 relative to the first limiting strip 2113a and the second limiting strip 2113b.

[0133] As shown in Figure 18 When the plug-in assembly 22 is inserted into the inside of a set of limiting strips 2213, the four sides of the plug-in assembly 22 are respectively in abutment with the inner wall of the shell 211, the first limiting strip 2113a, the second limiting strip 2113b, and the third limiting strip 2113c.

[0134] In some examples, as shown in Figure 17 The plug-in assembly 22 has two fourth limiting strips 220 arranged side by side. As shown in Figure 18 The third limiting strip 2113c is two, and the two third limiting strips 2113c extend into and abut against the two fourth limiting strips 220, so that the plug-in assembly 22 can be more firmly limited.

[0135] In some examples, as shown in Figure 18 The restorer 23 is inserted between a plurality of third limiting strips 2113c of a plurality of sets of limiting strips 2113 and is locked by the pressing plate 212.

[0136] In order to make the socket body 2 more stable in the extended state, in some examples, as shown in Figures 19-21 The top of the inner wall of the accommodating shell 1 has a notch 14, and the socket body 2 further comprises an elastic clamping block 24 connected with the socket shell 21 and located at the bottom of the socket shell 21. The elastic clamping block 24 can be telescoped relative to the side wall 2111 of the socket shell 21, and when the telescopic socket is in the extended state, the elastic clamping block 24 extends into the inside of the notch 14.

[0137] Next, the implementation of the elastic clamping block 24 is exemplarily described as follows:

[0138] In some examples, as shown in Figure 21 and Figure 22 The elastic clamping block 24 comprises a supporting frame 241, a clamping block 242 and a telescopic elastic piece 243, the supporting frame 241 is fixedly connected with the socket shell 21, the clamping block 242 is slidingly connected with the supporting frame 241, and the telescopic elastic piece 243 abuts against the supporting frame 241 and the clamping block 242 respectively, and the telescopic elastic piece 243 is used to push the clamping block 242 to extend relative to the side wall 2111 of the socket shell 21.

[0139] In some examples, as shown in Figure 21 and Figure 22 The side of the clamping block 242 away from the shell bottom of the accommodating shell 1 has a stop plane 2421, which is used to abut against the inner wall of the notch 14 under the action of the elastic piece 3 when the telescopic socket is in the extended state. The side of the clamping block 242 towards the shell bottom of the accommodating shell 1 has a guide inclined plane 2422, which is used to make the clamping block 242 retract under the pushing of the inner wall of the notch 14 during the retraction of the socket body 2. Thus, when the user presses the socket body 2, the locking state of the socket body 2 and the accommodating shell 1 can be automatically released, so that the socket body 2 can be smoothly retracted.

[0140] In some examples, as shown in Figure 20 The notch 14 is two, and the two notches 14 are respectively located at the two opposite inner walls of the accommodating shell 1. The elastic clamping block 24 is two, and the two elastic clamping blocks 24 are respectively located at the two opposite sides of the socket shell 21.

[0141] As described above, the socket body 2 of the telescopic socket in the related art comprises a socket shell 21, three plug-in sleeve modules (each plug-in sleeve module corresponds to one phase) and a restorer 23, the three plug-in sleeve modules are located inside the socket shell 21 and are arranged in sequence along the telescopic direction of the socket body 2 (i.e., the depth direction of the 86 cassette).

[0142] In order to realize the power supply of the plug-in socket module, the shell bottom of the accommodating shell 1 of the extension socket in the related art has three terminal posts for electrical connection, and the three plug-in socket modules each have a soldering pad for electrical connection, so that the three terminal posts are respectively electrically connected with the three soldering pads through flexible wires.

[0143] However, since the three plug-in socket modules are arranged in sequence along the extension direction of the socket body 2, when wiring, the soldering pad of the plug-in socket module away from the shell bottom of the accommodating shell 1 is blocked by the plug-in socket module close to the shell bottom of the accommodating shell 1, which makes the flexible wire have to bypass the blocked plug-in socket module to be welded with the soldering pad of the corresponding plug-in socket module, and the wiring is very inconvenient.

[0144] In order to solve or alleviate the above technical problems, in some examples, as shown in Figure 23 and Figure 24 , the shell bottom of the accommodating shell 1 has an L terminal post 123 and an N terminal post 124. The socket body 2 further includes an L connecting piece 2213a and an N connecting piece 2213b, the L connecting piece 2213a is electrically connected with the L plug-in socket of the plurality of plug-in assemblies 22, and the N connecting piece 2213b is electrically connected with the N plug-in socket of the plurality of plug-in assemblies 22. The L connecting piece 2213a has an L terminal soldering pad 22131, and the N connecting piece 2213b has an N terminal soldering pad 22132, the L terminal soldering pad 22131 and the N terminal soldering pad 22132 are exposed on the bottom wall 2121 of the socket shell 21 and are respectively electrically connected with the L terminal post 123 and the N terminal post 124 through flexible wires (not shown in the figure).

[0145] The technical scheme provided by the embodiments of the present disclosure, by arranging the L connecting piece 2213a to connect the L plug-in socket of the plurality of plug-in assemblies 22 and the N connecting piece 2213b to connect the N plug-in socket of the plurality of plug-in assemblies 22, and making the L terminal soldering pad 22131 of the L connecting piece 2213a and the N terminal soldering pad 22132 of the N connecting piece 2213b extend out of the bottom wall 2121 of the socket shell 21, when the L terminal post 123 and the N terminal post 124 of the shell bottom of the accommodating shell 1 are electrically connected through the flexible wires, the flexible wires do not need to bypass additional components, and the wiring is very convenient.

[0146] In some examples, as shown in Figure 23 , the L plug-in socket has an L terminal soldering pad 22121, and a plurality of L terminal soldering pads 22121 extend out of the bottom wall 2121 of the socket shell 21 and are electrically connected with the L connecting piece 2213a. The N plug-in socket has an N terminal soldering pad 22122, and a plurality of N terminal soldering pads 22122 extend out of the bottom wall 2121 of the socket shell 21 and are electrically connected with the N connecting piece 2213b.

[0147] The plug-in assembly 22 provided by the embodiments of the present disclosure can only have L-pole and N-pole plug-in sleeves, or can further have an E-pole plug-in sleeve.

[0148] When the plug-in assembly 22 further has an E-pole plug-in sleeve, the shell of the accommodating shell 1 further has an E-pole terminal post 125.

[0149] In some examples, the socket body 2 further includes an E-pole connecting piece (not shown in the figure), which is electrically connected with the E-pole plug-in sleeve in the plurality of plug-in assemblies 22. The E-pole connecting piece has an E-pole terminal post exposed on the bottom wall 2121 of the socket shell 21, and is electrically connected with the E-pole terminal post 125 through a soft wire. That is, the E-pole is also connected in a similar manner as the L-pole and N-pole described above, so that the connection of the retractable socket is more convenient.

[0150] Of course, in other examples, the socket body 2 can also not use an E-pole connecting piece, which is not limited by the embodiments of the present disclosure.

[0151] It should be noted that the positions of the resetters 23 and the lockers 122 included in all the retractable sockets provided by the embodiments of the present disclosure can be interchanged. That is, in the technical solutions described above in which the resetters 23 are arranged on the socket body 2, the resetters 23 can be replaced by the lockers 122, and only the lockers 122 on the bottom of the accommodating shell 1 need to be replaced by the resetters 23.

[0152] The above is only an optional embodiment of the present disclosure, and is not used to limit the present disclosure, and any modification, equivalent replacement, improvement, etc. made within the principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A retractable 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 for installation inside the 86-type junction box, the housing (1) has a locking device (122), and the socket body (2) is retractably installed in the housing (1); The socket body (2) includes a socket housing (21), multiple plug-in assemblies (22) and a resetter (23), wherein the sockets in different plug-in assemblies (22) are separately arranged; The plurality of plug-in components (22) are located inside the socket housing (21) and are respectively opposite to the plurality of side walls (2111) of the socket housing (21). The plurality of plug-in components (22) form a receiving space. At least a portion of the resetter (23) extends into the receiving space. The resetter (23) is opposite to the locking device (122). The bottom wall (2121) of the socket housing (21) is provided with an opening corresponding to the resetter (23). The telescopic socket also includes a connecting piece located on the outside of the bottom wall (2121) and connected to the sockets in the plurality of plug-in assemblies (22), the connecting piece surrounding the resetter (23), wherein the connecting piece is used to connect to the terminal block inside the receiving housing (1); The elastic element (3) abuts against the receiving shell (1) and the socket body (2) respectively.

2. The telescopic socket according to claim 1, characterized in that, A portion of the resetter (23) is located inside the socket housing (21), the resetter (23) passes through an opening in the bottom wall (2121), and the locking portion of the resetter (23) is exposed on the outside of the bottom wall (2121).

3. The telescopic socket according to claim 1, characterized in that, The resetter (23) is located inside the socket housing (21), and the opening in the bottom wall (2121) is for the locking device (122) to pass through.

4. The retractable socket according to any one of claims 1-3, characterized in that, There are four plug-in components (22), and the four plug-in components (22) are respectively opposite to the four side walls (2111) of the socket housing (21).

5. The telescopic socket according to claim 1, characterized in that, The socket housing (21) has receiving cavities (210) at at least two opposite corners. There are multiple elastic elements (3), and each elastic element (3) extends into the interior of one of the receiving cavities (210).

6. The telescopic socket according to claim 5, characterized in that, There are four plug-in components (22), and there are gaps at the outer corners of the four plug-in components (22), with each receiving cavity (210) located in one of the gaps.

7. The telescopic socket according to claim 5 or 6, characterized in that, The housing (1) has a plurality of mounting posts (120), which extend into the interior of a plurality of elastic members (3); When the telescopic socket is in the retracted state, the plurality of mounting posts (120) extend into the plurality of receiving cavities (210).

8. The telescopic socket according to any one of claims 1-3 or 5-6, characterized in that, The receiving shell (1) has a first guide structure (4) at at least two opposite corners. The socket housing (21) has a plurality of second guide structures (2112), and each second guide structure (2112) cooperates with a first guide structure (4).

9. The telescopic socket according to claim 8, characterized in that, The first guide structure (4) is a guide post, and the second guide structure (2112) is a guide hole; or The first guide structure (4) is a guide rack, and the second guide structure (2112) is a guide gear.

10. The telescopic socket according to any one of claims 1-3 or 5-6, characterized in that, The socket housing (21) includes an outer shell (211) and a pressure plate (212). The outer shell (211) includes the plurality of side walls (2111), and the pressure plate (212) includes the bottom wall (2121). The outer shell (211) has an opening facing the receiving shell (1), and the interior of the outer shell (211) has multiple sets of limiting strips (2113) extending in the telescopic direction, and each of the plug-in components (22) is inserted between a set of limiting strips (2113); The pressure plate (212) closes the opening of the outer shell (211) and locks the plurality of plug-in components (22) between a corresponding set of limiting strips (2113).

11. The telescopic socket according to any one of claims 1-3 or 5-6, characterized in that, The bottom of the housing (1) has an L terminal (123), an N terminal (124) and an E terminal (125). The connecting piece includes an L-pole connecting piece (2213a), an N-pole connecting piece (2213b), and an E-pole connecting piece. The L-pole connecting piece (2213a) is electrically connected to the L-pole sockets in the plurality of plug-in assemblies (22), the N-pole connecting piece (2213b) is electrically connected to the N-pole sockets in the plurality of plug-in assemblies (22), and the E-pole connecting piece is electrically connected to the E-pole sockets in the plurality of plug-in assemblies (22). The L-pole connector (2213a) has an L-pole solder pad (22131), the N-pole connector (2213b) has an N-pole solder pad (22132), and the E-pole connector has an E-pole solder pad. The L-pole solder pad (22131), the N-pole solder pad (22132), and the E-pole solder pad are electrically connected to the L-pole terminal (123), the N-pole terminal (124), and the E-pole terminal (125) respectively via flexible wires.

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