Extension line socket

Abstract

The utility model belongs to the technical field of automobile interior equipment, and particularly relates to an extension line socket, which comprises a socket main body, a placement groove is arranged on the left side of the socket main body, a line concentration box is placed in the placement groove, the line concentration box consists of a base and an upper cover, the upper cover is fixedly arranged right above the base, and a partition plate is fixed in an inner cavity of the upper cover; according to the socket, the base and the upper cover are arranged, the micro motor is used for driving and driving the wire winding column to rotate, so that when the wire winding column rotates, the wire can be driven to be continuously collected into the lower layer inner cavity of the upper cover, the length of the wire can be adjusted according to the requirement of a user, and the situation that in a traditional socket, the wire is not prone to being damaged is changed. When the length of the wire is too long, the environment is disordered or the length is too short, so that the requirement is not met; by arranging the four extrusion assemblies, the electric wires can be continuously attached to the surfaces of the electric wires on the inner layer when being bundled, so that the electric wires finally collected in the inner cavity of the upper cover are integrally arranged in a regular shape.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile in-vehicle equipment, and in particular relates to an extension cord socket. Background Art

[0002] Sockets, also known as power sockets and switch sockets. Sockets refer to seats that can be plugged into one or more circuit wiring, through which various wiring can be inserted. This makes it easy to connect to other circuits. The connection and disconnection between the line and the copper parts can ultimately achieve the connection and disconnection of this part of the circuit. In order to meet market demand, sockets are not only used in indoor and outdoor scenarios. In the automotive field, since the position of the internal jacks of the vehicle is relatively fixed, when people need to use the vehicle to connect external circuits, it cannot meet the needs of long-distance wiring.

[0003] Existing sockets are often fixed to fixed positions by bolts, but fixing them by bolts inside the car will cause irreversible damage to the internal shell of the car. In addition, the existing socket wiring harnesses are often fixed in length, and the length of the wires cannot be adaptively extended according to the actual needs of the user, and the scattered wires will make the interior space of the vehicle unsightly. In view of this, we propose an extension cord socket. Utility Model Content

[0004] The purpose of the utility model is to provide an extension cord socket to solve the problems raised in the above background technology.

[0005] In view of this, the utility model provides an extension cord socket, comprising:

[0006] A socket body, a placement groove is provided on the left side of the socket body, a collection box is placed in the placement groove, the collection box consists of a base and an upper cover, the upper cover is fixedly installed just above the base, a partition is fixed in the inner cavity of the upper cover, a rotary joint is installed at the axial position of the partition, and the bottom end of the rotary joint passes through the partition and extends to the lower inner cavity of the upper cover, a winding post is rotatably installed in the lower inner cavity of the upper cover, a sealing groove is provided at the bottom of the base, a square groove is provided on the inner top surface of the sealing groove, a micro motor is installed in the square groove, and the output shaft end of the micro motor passes through the inner top surface of the square groove and extends to the lower inner cavity of the upper cover to be coaxially connected with the winding post, a sealing cover is plugged into the sealing groove, the sealing cover is fixed to the base by a plurality of bolts, and the lower surface of the micro motor contacts the upper surface of the sealing cover;

[0007] A through slot, the through slot is provided in the inner cavity of the winding column, the cross section of the through slot is L-shaped, the wire harness at the bottom of the rotary joint extends from the top entrance of the through slot to the bottom of the through slot, and the wire harness at the upper part of the rotary joint passes through the upper inner wall of the upper cover and extends to the outside;

[0008] The electric wire is evenly wound and wound around the winding pole, one end of the electric wire is inserted into the opening at the bottom of the through slot and extends into the through slot to be electrically connected with the wiring harness at the bottom of the rotary joint, a through hole is opened on the side wall of the lower inner cavity of the upper cover, a through tube is fixed at the position of the through hole, and the other end of the electric wire passes through the through tube and extends to the outside to be connected with the socket body;

[0009] A restraint assembly, which is located at the bottom opening of the through slot and is used to restrain and limit the electric wire;

[0010] Four extrusion components are equidistantly distributed around a circle and are located in the lower inner cavity of the upper cover and are used for extruding and fitting the wires.

[0011] In the present technical solution, a base and an upper cover are provided, and a micro motor is used to drive the wire winding post to rotate, so that when the wire winding post rotates, it can drive the wires to be continuously collected into the lower inner cavity of the upper cover. The socket in the present device can adjust the length of the wire according to the needs of the user, which changes the shortcomings of the traditional socket that the environment is messy when the wire length is too long or the length is too short to meet the needs; by providing four extrusion components, the wires can be continuously fitted with the surface of the inner layer of the wires when being bundled, so that the wires finally collected into the inner cavity of the upper cover are arranged in a regular shape as a whole.

[0012] In the above technical solution, further, the constraint component includes:

[0013] A clamping head, the clamping head is fixedly installed at the bottom opening position of the through slot on the winding column, a sliding slot is provided in the clamping head, a slider is slidably connected in the sliding slot, a spring is symmetrically fixed between the slider and the inner wall of the sliding slot, and the clamping head and the slider are symmetrically provided with through holes for accommodating the positive and negative wiring harnesses of the wires to pass through.

[0014] In this technical solution, a constraint component is set up and a pair of wires are clamped and fixed using a slider, so that when the winding pole rotates, one end of the wire can rotate synchronously with the winding pole, thereby driving the part of the wire located outside to continuously gather on the winding pole.

[0015] In the above technical solution, further, the extrusion assembly includes:

[0016] A second slide groove is provided on the upper surface of the base, a slider is slidably connected in the second slide groove, a spring is arranged between the slider and the inner wall of the second slide groove on the outer side, and the two ends of the spring are respectively fixed to the slider and the inner wall of the second slide groove, a pressure rod is fixed to the upper surface of the second slide groove, and the top end of the pressure rod is slidably matched with the lower surface of the partition, and the circumferential side wall of the pressure rod is smooth.

[0017] In the present technical solution, four extrusion assemblies are provided and the elasticity of spring two is utilized so that the four pressure rods can always fit the outer wall of the outermost wires, so that when the wires are bundled, the wires in the outer layer can continuously fit around the inner layer wires, so that the wires in the inner cavity of the upper cover and the lower layer have a regular coil shape after being bundled.

[0018] In the above technical solution, further, the multiple strands of wire formed by winding the electric wires are located between the four pressure rods and the winding poles.

[0019] In the above technical solution, further, the inner wall of the placement groove near the left edge is symmetrically provided with a slide groove three, a baffle is slidably connected between two of the slide grooves three, and protrusions matching the corresponding slide grooves three are provided on both sides of the bottom of the baffle, a spring three is fixed on the upper surface of the protrusion, and the other end of the spring three is fixed to the inner top surface of the slide groove three.

[0020] In the present technical solution, a baffle is provided to surround the junction box in the placement slot, so that the device has a certain aesthetic appeal and at the same time plays a certain protective role for the junction box in the placement slot.

[0021] In the above technical solution, further, a cross bar is symmetrically fixed on the inner wall of the placement groove and located on the circumferential side of the base, and a cross groove that can accommodate two cross bars passing through is opened on the circumferential wall of the base, and the cross bar is slidably matched with the corresponding cross groove.

[0022] In the technical solution, by providing a transverse rod and a transverse groove, the socket body can be fixed to the junction box when the junction box is received in the placement groove.

[0023] In the above technical solution, further, a button is installed on the circumferential side wall of the base, the button is electrically connected to the micro motor, and a double-sided adhesive pad is bonded and fixed to the lower surface of the base.

[0024] In the technical solution, by providing a double-sided rubber pad, it is convenient to fix the device to the vehicle.

[0025] In the above technical solution, further, the upper surface of the socket body is provided with a triangular jack, a two-pin jack and a plurality of USB jacks, and the lower surface of the socket body is bonded and fixed with a plurality of evenly distributed foot pads.

[0026] In the present technical solution, by providing multiple types of jacks, the use needs of users are greatly met, and by providing foot pads, the foot pads can be placed stably.

[0027] The beneficial effects of the utility model are:

[0028] 1. The extension cord socket is driven by a micro motor by setting a base and an upper cover, and drives the wire winding column to rotate, so that when the wire winding column rotates, it can drive the wire to be continuously collected into the lower inner cavity of the upper cover. The socket in the device can adjust the length of the wire according to the needs of the user, which changes the shortcomings of the traditional socket that the environment is messy when the wire is too long or the length is too short to meet the needs.

[0029] 2. The extension cord socket is provided with four extrusion components and utilizes the elasticity of spring 2 so that the four pressure rods can always fit the outer wall of the outermost wires, so that when the wires are bundled, the wires in the outer layer can continuously fit around the inner layer wires, so that the wires in the inner cavity of the upper cover and the lower layer are arranged in a regular shape after the wire coils are bundled. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is one of the overall structural diagrams of the utility model;

[0031] Figure 2 This is the second structural diagram of the utility model;

[0032] Figure 3 It is a partial schematic diagram of the overall structure of the utility model (when the baffle is opened);

[0033] Figure 4 It is a cross-sectional schematic diagram of the socket body in the utility model;

[0034] Figure 5 This is a schematic diagram of the internal structure of the upper cover in the utility model;

[0035] Figure 6 It is an exploded schematic diagram of the internal parts of the base and the upper cover in the utility model;

[0036] Figure 7 This is a schematic diagram of the internal structure of the base in the utility model;

[0037] Figure 8 It is a structural schematic diagram of the winding column and the clamp head in the utility model;

[0038] Fig. 9 It is a structural schematic diagram of a clamping head and a sliding block in the utility model.

[0039] The symbols in the figure are:

[0040] 1. Socket body; 2. Placement slot; 3. Junction box; 4. Base; 5. Upper cover; 6. Partition; 7. Rotary joint; 8. Wire winding pole; 9. Sealing slot; 10. Square slot; 11. Micro motor; 12. Sealing cover; 13. Card head; 14. Slide slot 1; 15. Slider 1; 16. Spring 1; 17. Slide slot 2; 18. Slider 2; 19. Spring 2; 20. Pressure rod; 21. Wire; 22. Through pipe; 23. Slide slot 3; 24. Baffle; 25. Spring 3; 26. Cross bar; 27. Cross slot; 28. Button; 29. ​​Double-sided adhesive pad; 30. Foot pad. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0042] In the description of the present application, it should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0043] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0044] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0045] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or still includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0046] Embodiment 1:

[0047] See also Figure 1 - Fig. 9 As shown, this embodiment provides an extension cord socket, including:

[0048] A socket body 1, a placement groove 2 is provided on the left side of the socket body 1, a collection box 3 is placed in the placement groove 2, the collection box 3 is composed of a base 4 and an upper cover 5, the upper cover 5 is fixedly installed just above the base 4, a partition 6 is fixed to the inner cavity of the upper cover 5, a rotary joint 7 is installed at the axial position of the partition 6, and the bottom end of the rotary joint 7 passes through the partition 6 and extends to the lower inner cavity of the upper cover 5, a winding column 8 is rotatably installed in the lower inner cavity of the upper cover 5, a sealing groove 9 is provided at the bottom of the base 4, a square groove 10 is provided on the inner top surface of the sealing groove 9, a micro motor 11 is installed in the square groove 10, and the output shaft end of the micro motor 11 passes through the inner top surface of the square groove 10 and extends to the lower inner cavity of the upper cover 5 to be coaxially connected with the winding column 8, a sealing cover 12 is plugged into the sealing groove 9, the sealing cover 12 is fixed to the base 4 by a plurality of bolts, and the lower surface of the micro motor 11 is in contact with the upper surface of the sealing cover 12;

[0049] A through slot is provided in the inner cavity of the winding column 8, and the cross section of the through slot is L-shaped. The wire harness at the bottom of the rotary joint 7 extends from the top entrance of the through slot to the bottom of the through slot, and the wire harness at the upper part of the rotary joint 7 passes through the upper inner wall of the upper cover 5 and extends to the outside;

[0050] The wire 21 is evenly wound and wound around the winding pole 8. One end of the wire 21 passes through the opening at the bottom of the through slot and extends into the through slot to be electrically connected with the wiring harness at the bottom of the rotary joint 7. A through hole is formed on the side wall of the lower inner cavity of the upper cover 5. A through tube 22 is fixed at the position of the through hole. The other end of the wire 21 passes through the through tube 22 and extends to the outside to be connected with the socket body 1.

[0051] A restraining component, which is located at the bottom opening of the through slot and is used to restrain and limit the electric wire 21;

[0052] Four extrusion components are equidistantly distributed around a circle and are located in the lower inner cavity of the upper cover 5 , and are used to extrude and fit the wires 21 .

[0053] Among them, the end of the wiring harness on the upper part of the rotary joint 7 that is outside is connected to a plug that is compatible with the vehicle-mounted cigarette lighter. When in use, the plug is inserted into the vehicle-mounted cigarette lighter to energize the socket body 1. Before use, the junction box 3 can be fixed on a relatively flat surface in the vehicle, and then the socket body 1 is pulled. The socket body 1 continuously pulls out the wires 21 from the lower inner cavity of the upper cover 5. Then the user inserts the charging head into the corresponding jack on the socket body 1 as needed. When the wires 21 need to be stored, the micro motor 11 is started, and the output shaft of the micro motor 11 rotates, and drives the winding column 8 to rotate. Since one end of the wire 21 is connected to the wiring harness of the rotary joint 7 in the inner cavity groove of the winding column 8, the winding column 8 can drive the wires when it rotates. 21 is continuously gathered. During the above process, the four extrusion components are always attached to the outer side of the wire 21, so that the wire 21 can be evenly wound on the winding pole 8 until the wire 21 is gathered to a suitable length. Then, the operator aligns the placement slot 2 on the left side of the socket body 1 with the junction box 3, so that the junction box 3 can be stored in the junction box 3. It is worth noting that the rotary joint 7 involved in the utility model adopts the single-channel hydraulic rotary joint with the product number DAPH100 ​​series produced by Shenzhen Daneng Electromechanical Co., Ltd. The rotary joint 7 involved in the utility model is a prior art, which can be fully realized by those skilled in the art. Needless to say, the content protected by the utility model does not involve improvements to the structure and working principle of the rotary joint 7.

[0054] By setting a base 4 and an upper cover 5, a micro motor 11 is used to drive and drive the wire winding post 8 to rotate, so that when the wire winding post 8 rotates, it can drive the wire 21 to be continuously collected into the lower inner cavity of the upper cover 5. The socket in the device can adjust the length of the wire 21 according to the needs of the user, which changes the shortcomings of the traditional socket that the environment is messy when the length of the wire 21 is too long or the length is too short to meet the needs; by setting four extrusion components, the wire 21 can be continuously fitted with the surface of the inner layer of the wire 21 when being bundled, so that the wire 21 finally collected into the inner cavity of the upper cover 5 is arranged in a regular shape as a whole.

[0055] Embodiment 2:

[0056] This embodiment provides an extension cord socket, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the restraint component includes:

[0057] The clamp head 13 is fixedly mounted at the bottom opening position of the through slot on the winding column 8, a slide slot 14 is provided in the clamp head 13, a slider 15 is slidably connected in the slide slot 14, a spring 16 is symmetrically fixed between the slider 15 and the inner wall of the slide slot 14, and the clamp head 13 and the slider 15 are symmetrically provided with through holes for accommodating the positive and negative wiring harnesses of the electric wires 21 to pass through.

[0058] Among them, the positive and negative terminal wiring harnesses of the electric wire 21 respectively pass through the perforations on the clamp head 13 and extend into the through groove to be connected with the corresponding wiring harness at the bottom of the rotary joint 7. When the electric wire 21 passes through the perforations on the clamp head 13 and the slider 15 in turn, the user loosens the slider 15. Under the action of the two springs 16, the slider 15 moves toward the side opening of the clamp head 13. At this time, the two perforations on the slider 15 are misaligned with the perforations on the clamp head 13, that is, at this time, the slider 15 can clamp and fix the wiring harness of the electric wire 21.

[0059] By setting a constraint component and using a slider 15 to clamp and fix the wire 21, when the winding pole 8 rotates, one end of the wire 21 can rotate synchronously with the winding pole 8, thereby driving the part of the wire 21 located outside to be continuously gathered on the winding pole 8.

[0060] Embodiment 3:

[0061] This embodiment provides an extension cord socket, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the extrusion assembly includes:

[0062] A second slide groove 17 is provided on the upper surface of the base 4, a slider 18 is slidably connected in the slide groove 17, a spring 19 is provided between the slider 18 and the inner wall of the outer side of the slide groove 17, and the two ends of the spring 19 are respectively fixed to the slider 18 and the inner wall of the slide groove 17, a pressure rod 20 is fixed to the upper surface of the slide groove 17, and the top end of the pressure rod 20 is slidably matched with the lower surface of the partition 6, and the circumferential side wall of the pressure rod 20 is smooth.

[0063] Among them, spring 2 19 is elastic. Under the action of spring 2 19, slider 2 18 drives pressure rod 20 to continuously squeeze the outer surface of the outermost wire 21 located in the lower inner cavity of the upper cover 5. As the wire 21 is continuously collected into the upper cover 5, the four pressure rods 20 can always squeeze the wire 21 that enters later to fit the surface of the wire 21 that enters earlier.

[0064] By setting up four extrusion components and utilizing the elasticity of spring 2 19, the four pressure rods 20 can always fit the outer wall of the outermost wire 21, so that when the wires 21 are bundled, the wires 21 located in the outer layer can continuously fit around the inner layer of the wires 21, so that the wires 21 in the lower inner cavity of the upper cover 5 are in a regular shape after being bundled.

[0065] Embodiment 4:

[0066] This embodiment provides an extension cord socket, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the multi-strand winding wire formed by winding the electric wires 21 is located between the four pressure rods 20 and the winding column 8.

[0067] Embodiment 5:

[0068] The present embodiment provides an extension cord socket, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: the inner wall of the placement slot 2 near the left edge is symmetrically provided with sliding grooves three 23, a baffle 24 is slidably connected between the two sliding grooves three 23, and protrusions matching the corresponding sliding grooves three 23 are provided on both sides of the bottom of the baffle 24, a spring three 25 is fixed on the upper surface of the protrusion, and the other end of the spring three 25 is fixed to the inner top surface of the sliding groove three 23.

[0069] Among them, when it is necessary to store the junction box 3, the junction box 3 is first placed in the placement slot 2, and then the operator loosens the baffle 24, and the baffle 24 falls under the action of two springs 25 and blocks the opening on the left side of the placement slot 2. It is worth adding that the upper surface of the socket body 1 is provided with a through hole that can accommodate the baffle 24 to pass through.

[0070] By setting the baffle 24 to surround the junction box 3 located in the placement groove 2, the device has a certain aesthetic appeal and at the same time plays a certain protective role for the junction box 3 located in the placement groove 2.

[0071] Embodiment 6:

[0072] The present embodiment provides an extension cord socket, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: a cross bar 26 is symmetrically fixed on the inner wall of the placement groove 2 and located on the peripheral side of the base 4, and a cross groove 27 for accommodating two cross bars 26 to pass through is opened on the circumferential wall of the base 4, and the cross bar 26 is slidably matched with the corresponding cross groove 27.

[0073] When placing the junction box 3 into the placement slot 2, it is only necessary to align the two transverse slots 27 on the periphery of the base 4 with the corresponding transverse bars 26 and then push it inwards.

[0074] By providing the cross bar 26 and the cross groove 27 , when the junction box 3 is received in the placement groove 2 , the socket body 1 can be fixed to the junction box 3 .

[0075] Embodiment 7:

[0076] The present embodiment provides an extension cord socket, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: a button 28 is installed on the circumferential side wall of the base 4, the button 28 is electrically connected to the micro motor 11, and a double-sided adhesive pad 29 is bonded and fixed to the lower surface of the base 4.

[0077] When storing the electric wire 21 , the user can press the button 28 to start the micro motor 11 . In addition, the base 4 can be bonded to a relatively flat position in the vehicle through the double-sided adhesive pad 29 .

[0078] By providing the double-sided adhesive pad 29, it is convenient to fix the device to the vehicle.

[0079] Embodiment 8:

[0080] The present embodiment provides an extension cord socket, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: a triangular jack, a two-pin jack and a plurality of USB jacks are provided on the upper surface of the socket body 1, and a plurality of evenly distributed foot pads 30 are bonded and fixed to the lower surface of the socket body 1.

[0081] The user can select an appropriate socket according to the needs. When placing the socket, the socket surface of the socket body 1 is required to be facing upward.

[0082] By providing multiple types of jacks, the use needs of users are greatly met, and by providing the foot pad 30, the foot pad 30 can be placed stably.

[0083] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. An extension cord socket, characterized in that: include: A socket body (1), wherein a placement groove (2) is provided on the left side of the socket body (1), wherein a wiring collection box (3) is placed in the placement groove (2), wherein the wiring collection box (3) is composed of a base (4) and an upper cover (5), wherein the upper cover (5) is fixedly installed directly above the base (4), wherein a partition (6) is fixedly installed in the inner cavity of the upper cover (5), wherein a rotary joint (7) is installed at the axial position of the partition (6), and the bottom end of the rotary joint (7) passes through the partition (6) and extends to the lower inner cavity of the upper cover (5), wherein a wire winding device (7) is rotatably installed in the lower inner cavity of the upper cover (5) The bottom of the base (4) is provided with a sealing groove (9), the inner top surface of the sealing groove (9) is provided with a square groove (10), a micro motor (11) is installed in the square groove (10), and the output shaft end of the micro motor (11) passes through the inner top surface of the square groove (10) and extends to the lower inner cavity of the upper cover (5) to be coaxially connected with the winding column (8), a sealing cover (12) is inserted and matched in the sealing groove (9), the sealing cover (12) is fixed to the base (4) by a plurality of bolts, and the lower surface of the micro motor (11) is in contact with the upper surface of the sealing cover (12); A through slot, the through slot being provided in the inner cavity of the winding column (8), the cross section of the through slot being L-shaped, the wire harness at the bottom of the rotary joint (7) extending from the top entrance of the through slot to the bottom of the through slot, and the wire harness at the upper part of the rotary joint (7) passing through the upper inner wall of the upper cover (5) and extending to the outside; An electric wire (21), wherein the electric wire (21) is evenly wound and wound around the winding pole (8), one end of the electric wire (21) passes through the opening at the bottom of the through slot and extends into the through slot to be electrically connected to the wiring harness at the bottom of the rotary joint (7), a through hole is formed on the side wall of the lower inner cavity of the upper cover (5), a through pipe (22) is fixed at the position of the through hole, and the other end of the electric wire (21) passes through the through pipe (22) and extends to the outside to be connected to the socket body (1); A restraining component, the restraining component is located at the bottom opening of the through slot and is used to restrain and limit the position of the electric wire (21); Four extrusion assemblies are equidistantly distributed around a circle and are located in the lower inner cavity of the upper cover (5), and are used to extrude and fit the electric wires (21).

2. An extension cord socket according to claim 1, characterized in that: The constraint component includes: A clamp (13) is fixedly mounted at the bottom opening position of the through slot on the winding column (8), a slide slot (14) is provided in the clamp (13), a slider (15) is slidably connected in the slide slot (14), a spring (16) is symmetrically fixed between the slider (15) and the inner wall of the slide slot (14), and through holes are symmetrically provided on the clamp (13) and the slider (15) for accommodating the positive and negative wiring harnesses of the electric wire (21) to pass through.

3. The extension cord socket according to claim 1, characterized in that: The extrusion assembly comprises: A second slide groove (17), wherein the second slide groove (17) is provided on the upper surface of the base (4), and a second slider (18) is slidably connected in the second slide groove (17), and a second spring (19) is arranged between the second slider (18) and the inner wall of the second slide groove (17) on the outer side, and the two ends of the second spring (19) are respectively fixed to the second slider (18) and the inner wall of the second slide groove (17), and a pressure rod (20) is fixed to the upper surface of the second slide groove (17), and the top end of the pressure rod (20) is slidably matched with the lower surface of the partition (6), and the circumferential side wall of the pressure rod (20) is smooth.

4. An extension cord socket according to claim 3, characterized in that: The multiple strands of wire formed by winding the electric wires (21) are located between the four pressure rods (20) and the winding pole (8).

5. The extension cord socket according to claim 1, characterized in that: The inner wall of the placement groove (2) near the left edge is symmetrically provided with a sliding groove three (23), and a baffle (24) is slidably connected between the two sliding grooves three (23). Both sides of the bottom of the baffle (24) are provided with protrusions that are compatible with the corresponding sliding grooves three (23), and a spring three (25) is fixed on the upper surface of the protrusion, and the other end of the spring three (25) is fixed to the inner top surface of the sliding groove three (23).

6. The extension cord socket according to claim 1, characterized in that: A cross bar (26) is symmetrically fixed on the inner wall of the placement groove (2) and located on the circumferential side of the base (4); a cross groove (27) capable of accommodating two cross bars (26) passing through is provided on the circumferential wall of the base (4); and the cross bars (26) are slidably matched with the corresponding cross grooves (27).

7. The extension cord socket according to claim 1, characterized in that: A button (28) is installed on the circumferential side wall of the base (4), the button (28) is electrically connected to the micro motor (11), and a double-sided adhesive pad (29) is bonded and fixed to the lower surface of the base (4).

8. The extension cord socket according to claim 1, characterized in that: The upper surface of the socket body (1) is provided with a triangular jack, a two-pin jack and a plurality of USB jacks, and the lower surface of the socket body (1) is bonded and fixed with a plurality of evenly distributed foot pads (30).

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