Portable telescopic charging wire device

Abstract

The utility model discloses a portable telescopic charging wire device. The device comprises an outer shell, wherein the outer shell is provided with an accommodating inner cavity and a take-up and pay-off port communicated with the accommodating inner cavity; the carrying disc is arranged in the containing inner cavity and rotationally connected with the outer shell. The other end of the spring is connected with the outer shell; when the clockwork spring drives and keeps that the loading disc carries the charging wire coil to be wound into the accommodating inner cavity, the power supply end of the charging wire is located at the take-up and pay-off port; one end, far away from the power supply end, of the charging wire is connected with the carrying disc; the carrying disc is further provided with driving teeth. The middle wheel is rotationally connected with the outer shell; when the carrying disc rotates to a preset angle, the driving teeth are meshed with the middle wheel to drive the middle wheel to rotate; the force measuring abutting part is used for abutting against the middle wheel teeth to prevent the middle wheel and the carrying disc from rotating, and when the middle wheel abuts against the force measuring abutting part to reach the preset force, the force measuring abutting part avoids the position so that the middle wheel and the carrying disc can rotate.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of digital devices, in particular to a portable telescopic charging wire device. BACKGROUND

[0002] The charging wire or data wire in the box can be stretched out or rolled back into the box, compared with a conventional data wire, the wire body can be longer without worrying about winding and knotting problems during use, and the charging wire is more convenient to store.

[0003] In the prior art, a mobile power supply with a telescopic charging wire is disclosed in patent application No. CN201921013950.2, the inside of the box body adopts the principle of a ratchet mechanism structure to fix the wire length, and the wire winding needs to press the adjusting button on the protruding outer wall of the box body. The telescopic charging wire designed in this way affects the appearance simplicity and aesthetics, and forcibly pulling the charging wire can cause damage to the ratchet teeth, and the adjusting button on the outer wall of the box body is easily touched, causing the charging wire to be mistakenly retracted. CONTENT OF THE UTILITY MODEL

[0004] The utility model mainly aims at the above problems, and provides a portable telescopic charging wire device, which aims to solve the technical problems in the background art.

[0005] To achieve the above purpose, the utility model provides a portable telescopic charging wire device, which comprises:

[0006] An outer shell body is provided with a containing inner cavity and a wire winding and unwinding port in communication with the containing inner cavity;

[0007] A charging wire;

[0008] A clockwork spring;

[0009] A carrier disc is arranged in the containing inner cavity and rotationally connected with the outer shell body; the carrier disc is provided with a coiled region connected with the charging wire and a connecting portion connected with one end of the clockwork spring; the other end of the clockwork spring is connected with the outer shell body; when the carrier disc carries the charging wire to be coiled into the containing inner cavity, the power supply end of the charging wire is located at the wire winding and unwinding port; one end of the charging wire away from the power supply end is connected with the carrier disc; the carrier disc is further provided with a driving tooth;

[0010] An intermediate wheel is rotationally connected with the outer shell body; when the carrier disc is rotated to a predetermined angle, the driving tooth is engaged with the intermediate wheel to drive the intermediate wheel to rotate;

[0011] A force resisting member is arranged in the accommodating cavity, and is used to resist the intermediate gear teeth to prevent the intermediate wheel and the carrier plate from rotating. When the intermediate wheel resists the force resisting member to a predetermined force, the force resisting member is moved away to allow the intermediate wheel and the carrier plate to rotate.

[0012] A conductive member is arranged in the accommodating cavity, and one end of the conductive member is connected with the power connection end of the charging wire, and the other end of the conductive member is provided with a power connection part exposed outside the shell.

[0013] Further, the force resisting member is a ball head plunger installed in the shell, and the elastic force of the elastic member in the ball head plunger is greater than the elastic force of the spring.

[0014] Further, the shell comprises an upper box body and a lower box body which are detachably connected.

[0015] Further, the upper box body is provided with a rotation limiting shaft ring corresponding to the carrier plate, and the carrier plate is provided with a rotation hole corresponding to the rotation limiting shaft ring.

[0016] Further, the intermediate wheel and the force resisting member are connected with the lower box body.

[0017] Further, the upper box body and the lower box body are connected through reverse buckling and buckling holes.

[0018] Further, the carrier plate is provided with an enclosed cavity and a cover plate covering the port of the enclosed cavity, the spring is arranged in the enclosed cavity, and the outer ring end of the spring is connected with the connecting part, and the inner ring end of the spring is connected with the shell.

[0019] Further, the rotation limiting shaft ring is arranged on the cover plate.

[0020] Further, the conductive member comprises a PCB board fixedly connected with the shell and a power connection plate rotating with the carrier plate, the PCB board and the power connection plate are electrically connected through a brush, the power connection part is arranged on the PCB board, and the power connection plate is electrically connected with the power connection end.

[0021] Further, the number of the driving teeth is two groups, and the two groups are symmetrically distributed.

[0022] Compared with the prior art, the portable telescopic charging wire device provided by the utility model has a more simple overall appearance, only the charging wire is extended and retracted through the take-up and pay-off port and the power connection part is exposed, when the charging wire is pulled out of the containing inner cavity, combined with the elastic resistance of the clockwork, one stroke will appear, and when resistance is encountered, it will stop, and force needs to be applied again to overcome the resistance of the force resisting part outside the clockwork, and suddenly releasing the hand will utilize the elastic reset force and inertia of the clockwork to fully retract the charging wire, the user obtains the interesting operation, and the disadvantages in the prior art are overcome. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a portable telescopic charging wire device structure schematic view of the application.

[0024] Figure 2 It is another view of the portable telescopic charging wire device structure schematic view of the application.

[0025] Figure 3 It is a portable telescopic charging wire device structure exploded view of the application.

[0026] Figure 4 It is a further portable telescopic charging wire device structure exploded view of the application.

[0027] Figure 5 It is another view of the portable telescopic charging wire device structure exploded view of the application.

[0028] Figure 6 It is a portable telescopic charging wire device conductive part structure exploded view of the application.

[0029] Figure 7 It is a portable telescopic charging wire device carrier disc structure schematic view of the application.

[0030] The reference signs shown in the drawing: 1, shell body; 110, take-up and pay-off port; 120, upper box body; 121, rotation limiting shaft ring; 130, lower box body; 140, reverse buckle; 150, buckle hole; 2, charging wire; 210, power supply end; 220, power connection end; 3, clockwork; 4, carrier disc; 410, coiled region; 420, connecting part; 430, driving tooth; 440, rotation hole; 450, enclosed cavity; 460, cover plate; 5, intermediate wheel; 6, force resisting part; 7, conductive part; 710, power connection part; 720, PCB; 730, power connection plate; 740, brush. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application. It can be understood that the drawings are only provided for reference and illustration, and are not used to limit the present application. The connection relationship shown in the drawings is only for clear description, and does not limit the connection mode.

[0032] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component, or a middle component can exist at the same time. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present application belongs. It should also be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments, and are not intended to limit the present application.

[0033] It should also be noted that in the description of the present application, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship 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, and are not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0034] Please refer to Figure 1 Figure 7 The embodiment provides a portable telescopic charging wire device, which comprises:

[0035] The outer shell 1 is provided with a containing inner cavity and a wire receiving and releasing port 110 communicating with the containing inner cavity;

[0036] The charging wire 2;

[0037] ​The charging wire 2 is preferably a flat wire, which can be a data line containing only charging function, or a wire capable of both charging and data transmission.

[0038] The spring 3;

[0039] The spring 3 is preferably a coil spring.

[0040] The carrier disc 4 is arranged in the accommodating inner cavity and rotationally connected with the outer shell 1. The carrier disc 4 is provided with a coiled region 410 connected with the charging wire 2 and a connecting portion 420 connected with one end of the spring 3. The other end of the spring 3 is connected with the outer shell 1. When the carrier disc 4 is driven to carry the charging wire 2 into the accommodating inner cavity, the power supply end 210 of the charging wire 2 is located at the wire winding port 110. The end of the charging wire 2 away from the power supply end 210 is connected with the carrier disc 4. The carrier disc 4 is further provided with a driving tooth 430.

[0041] The power supply end 210 can be a single Type-C connector, Micro USB connector or Lightning connector, or a combination of the three, or any two.

[0042] The intermediate wheel 5 is rotationally connected with the outer shell 1. When the carrier disc 4 is rotated to a predetermined angle, the driving tooth 430 engages with the intermediate wheel 5 to drive the intermediate wheel 5 to rotate.

[0043] The force resisting member 6 is arranged in the accommodating inner cavity. The force resisting member 6 is used to resist the teeth of the intermediate wheel 5 to prevent the intermediate wheel 5 and the carrier disc 4 from rotating. When the intermediate wheel 5 resists the force resisting member 6 to a predetermined force, the force resisting member 6 is avoided to allow the intermediate wheel 5 and the carrier disc 4 to rotate.

[0044] The conductive member 7 is arranged in the accommodating inner cavity, one end of which is connected with the power connection end 220 of the charging wire 2, and the other end is provided with a power connection portion 710 exposed outside the outer shell 1.

[0045] In some embodiments, the power connection portion 710 can be some metal contacts, or a USB-A connector, a Type-C connector, which can be connected with a charging head or a power bank, or a charging head, or a power bank.

[0046] Through this design, the overall appearance of the outer shell 1 is more simple, only the charging wire 2 is extended and retracted through the wire winding port 110, and the power connection portion 710 is exposed.

[0047] When the user operates the portable telescopic charging cord device, the charging cord 2 needs to be pulled out of the shell 1 to a predetermined length. During the pulling process, the elastic resistance of the spring 3 is overcome, and the carrier disc 4 rotates, and the driving teeth 430 rotate with the carrier disc 4. The driving teeth 430 also drive the intermediate wheel 5 to rotate. In order to rotate, the intermediate wheel 5 first needs to overcome the resistance of the force-resisting piece 6, and the user also needs to overcome the resistance to drive the intermediate wheel 5 to rotate and allow the force-resisting piece 6 to avoid the position, so that the intermediate wheel 5 and the carrier disc 4 rotate.

[0048] When the user pulls the charging cord 2 to the desired length, if the user suddenly releases the hand, and the force-resisting piece 6 does not resist the gap between the two teeth of the intermediate wheel 5, the elastic reset force of the spring 3 directly acts on the carrier disc 4, drives the carrier disc 4 to rotate and reset, and at the same time, the charging cord 2 is retracted, and the intermediate wheel 5 is driven to rotate by the driving teeth 430. At this time, the elastic reset force of the spring 3 acts on the force-resisting piece 6, and reaches the predetermined force. Under the inertia, the wire body of the charging cord 2 can be completely retracted into the internal cavity and neatly wound.

[0049] If the length of the charging cord 2 pulled out needs to be kept in the required length range, when the user pulls the charging cord 2 to the desired length, and the force-resisting piece 6 resists the gap between the two teeth of the intermediate wheel 5, the user releases the hand. Or, without sensing that the force-resisting piece 6 resists the gap between the two teeth of the intermediate wheel 5, the user gently releases the hand. At this time, under the resistance of the force-resisting piece 6, the elastic reset force of the spring 3 cannot act on the carrier disc 4 to rotate and reset. The carrier disc 4 stops rotating and remains in the current position, and the charging cord 2 reaches the desired length.

[0050] In some embodiments, the driving teeth 430 are not arranged along the tooth ring one by one, but can be customized to the required density. During the rotation of the carrier disc 4, the driving teeth 430 can not mesh with the intermediate wheel 5, so that the intermediate wheel 5 rotates. Then, every time the intermediate wheel 5 rotates, the force-resisting piece 6 enters another two teeth from the two teeth, which makes the force-resisting piece 6 resist the intermediate wheel 5 again and prevent the intermediate wheel 5 from rotating. When the driving teeth 430 mesh with the intermediate wheel 5, the intermediate wheel 5 also resists the driving teeth 430 and prevents the carrier disc 4 from rotating. When the charging cord 2 is pulled out of the internal cavity, combined with the elastic resistance of the spring 3, a pulling stroke appears. When resistance is encountered, it stops, and the user needs to exert force to overcome the resistance of the force-resisting piece 6 outside the spring 3. Suddenly releasing the hand can use the elastic reset force of the spring 3 and inertia to fully retract the charging cord 2. This design allows the user to obtain the fun of operation and overcomes the drawbacks of the prior art.

[0051] Please refer to Figure 4 and Figure 6The force resisting element 6 is a ball head plunger installed in the outer shell 1.

[0052] The ball head plunger can well provide the above-mentioned functional effect. The spring force of the spring built in the ball head plunger is greater than the spring force of the clockwork 3, so that when the ball head of the ball head plunger is resisted between the two driving teeth 430, the disc 4 can be guaranteed not to be easily pulled back by the spring force of the clockwork 3. Only when the user suddenly releases his hand, the elastic reset force of the clockwork 3 and the rotational inertia of the disc 4 can be used to realize the full recovery of the charging line 2.

[0053] Please refer to Figure 1 and Figure 3 , the outer shell 1 includes a detachably connected upper box body 120 and a lower box body 130.

[0054] This design is convenient for later maintenance.

[0055] Please refer to Figure 4 , the upper box body 120 is provided with a rotation limiting shaft ring 121 corresponding to the disc 4, and the disc 4 is provided with a rotating hole 440 corresponding to the rotation limiting shaft ring 121.

[0056] Through this design, the disc 4 can rotate in place without deflection, and the operation is stable. The rotation limiting shaft ring 121 and the rotating hole 440 are gap-fitted.

[0057] Please refer to Figure 5 , the intermediate wheel 5 and the force resisting element 6 are connected with the lower box body 130.

[0058] With the disc 4 as a boundary, the charging line 2 and the clockwork 3 are preferably located on the side of the upper box body 120.

[0059] Please refer to Figure 1 and Figure 2 , Figure 4 and Figure 5 , the upper box body 120 and the lower box body 130 are connected through a reverse buckle 140 and a buckle hole 150.

[0060] This design is convenient for assembly, does not need to be assembled with screws, needs additional tool operation for disassembly, and saves cost.

[0061] Please refer to Figure 5 , the disc 4 is provided with an enclosed cavity 450 and a cover plate 460 covering the port of the enclosed cavity 450, the clockwork 3 is arranged in the enclosed cavity 450, and the outer ring end of the clockwork 3 is connected with the connecting part 420, and the inner ring end of the clockwork 3 is connected with the outer shell 1.

[0062] Through designing the additional cover plate 460, the maintenance worker or the assembly worker is ensured to be safe when operating the loading and unloading of the upper box body 120 and the lower box body 130, and the clockwork 3 is prevented from flying out to hurt people, and the design is considerate.

[0063] Please refer to Figure 5 The rotating limiting shaft ring 121 is arranged on the cover plate 460.

[0064] Please refer to Figure 6 The conductive part 7 comprises a PCB plate 720 fixedly connected with the outer shell 1, an electric contact plate 730 rotating with the carrier disc 4, and the PCB plate 720 and the electric contact plate 730 are electrically connected through a brush 740; the electric contact part 710 is arranged on the PCB plate 720; and the electric contact plate 730 is electrically connected with the electric contact end 220.

[0065] Through the structure, the conductive circuit similar to the electric slip ring structure is formed, so that the charging wire 2 can also receive power supply from the electric contact part 710 under the structure of rotating winding, and the design is ingenious.

[0066] Please refer to Figure 7 The number of the driving teeth 430 is two groups, and the two groups are symmetrically distributed.

[0067] Through the design, when the user pulls out the charging wire 2 from the containing inner cavity, the carrier disc 4 is stopped once by the force limiting stopper 6 every half rotation, and the user can select the current charging wire 2 extension length once in the state.

[0068] In the specification and claims of the present application, the words "comprise / comprising" and the words "have / having" and their conjugates, are used to specify the presence of stated features, integers, steps or components but do not preclude the presence or addition of one or more other features, integers, steps, components, or groups thereof.

[0069] Some features of the present application are described in different embodiments for the sake of clarity, however, these features can also be combined in a single embodiment. Conversely, some features of the present application are described in a single embodiment for the sake of brevity, however, these features can also be described in different embodiments, alone or in any suitable combination.

[0070] The above only describes preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A portable retracting charging cord device, characterized by, include: The outer casing has an inner cavity and a cable delivery / retraction port communicating with the inner cavity; Charging cable; Clockwork; A carrier plate is disposed in the receiving cavity and rotatably connected to the outer shell; the carrier plate has a winding area connected to the charging cable and a connecting part connected to one end of the mainspring; the other end of the mainspring is connected to the outer shell; when the mainspring drives the carrier plate to wind and retract the charging cable into the receiving cavity, the power supply end of the charging cable is located at the cable retraction / unwinding port; the end of the charging cable away from the power supply end is connected to the carrier plate; the carrier plate also has drive teeth; An intermediate wheel is rotatably connected to the outer casing; when the carrier rotates to a predetermined angle, the drive gear meshes with the intermediate wheel, causing the intermediate wheel to rotate. A force-measuring support member is disposed in the receiving cavity; the force-measuring support member is used to abut the teeth of the intermediate wheel to prevent the intermediate wheel and the carrier from rotating; when the intermediate wheel abuts the force-measuring support member to a predetermined force, the force-measuring support member is displaced to allow the intermediate wheel and the carrier to rotate. A conductive element is disposed in the accommodating cavity, one end of which is connected to the power terminal of the charging cable, and the other end of which has a power terminal exposed outside the outer shell.

2. A portable retracting charging cord device according to claim 1, wherein, The force-holding component is a ball-head plunger, which is installed on the outer shell; the elastic force of the elastic element in the ball-head plunger is greater than the elastic force of the spring.

3. The portable retracting charging cord device of claim 1, wherein, The outer casing includes a detachably connected upper box and a lower box.

4. A portable retracting charging cord device according to claim 3, wherein, The upper box body is provided with a rotation limiting shaft ring corresponding to the carrier plate, and the carrier plate is provided with a rotating hole corresponding to the rotation limiting shaft ring.

5. A portable retracting charging cord device according to claim 4, wherein, The intermediate wheel and the force-bearing support are both connected to the lower box body.

6. The portable retracting charging cord device of claim 4, wherein, The upper box and the lower box are connected by buckles and snap holes.

7. The portable retracting charging cord device of claim 1, wherein, The carrier plate has an enclosing cavity and a cover plate that covers the port of the enclosing cavity. The mainspring is disposed in the enclosing cavity, and the outer ring end of the mainspring is connected to the connecting part, and the inner ring end of the mainspring is connected to the outer shell.

8. A portable retracting charging cord device according to claim 7, wherein, When claim 7 refers to claim 3, the rotation limiting shaft is disposed on the cover plate.

9. A portable retractable charging cable device according to claim 1, characterized in that, The conductive component includes a PCB board fixedly connected to the outer casing and a power receiving plate that rotates with the carrier disk. The PCB board and the power receiving plate are electrically connected via brushes. The power receiving part is disposed on the PCB board. The power receiving plate is electrically connected to the power receiving end.

10. A portable retractable charging cable device according to claim 1, characterized in that, The number of drive teeth is two sets, symmetrically distributed.

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