Telescopic structure of rotary charger

Abstract

The utility model discloses a telescopic structure of a rotary charger, which relates to the technical field of electronic products and chargers and comprises a lower shell, an upper shell, a turntable, a charging wire, a coil spring, a conductive disc, a PCB (printed circuit board) and the like. According to the structure, a closed space is formed through the lower shell and the upper shell which are connected in a buckled mode, the rotating disc serves as a core component to bear the winding drum and other structures, and the charging wire is wound around the winding drum and can stretch out and retract automatically through pulling. The coil spring provides retraction force, and the conductive disc is in contact with the PCB to transmit electric energy. A guide groove and a sliding block are arranged in the upper shell and matched with the rotating disc and the inner ring body to control the extending length of the charging wire. When a user pulls the charging line, the turntable rotates, and the convex column moves under the action of the guide block; and after the pulling is stopped, the turntable rotates reversely under the action of the coil spring, and the convex column clamps and fixes the length of the charging wire. And after the charging wire is pulled and loosened again, the charging wire automatically retracts into the shell. The structure improves the convenience and stability of the charger.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic product and charger technical field, concretely is a kind of telescopic structure of rotary charger. BACKGROUND

[0002] With the popularization of electronic equipment and the increase of charging demand, rotary charger, as a kind of convenient and efficient charging solution, is favored by the majority of users. Rotary charger makes the charging line freely extend or retract as needed through its internal telescopic structure, not only saves space, but also improves the convenience of use.

[0003] However, the traditional rotary charger telescopic structure has some deficiencies in design. For example, the telescopic mechanism of some products is complex and unstable, which can easily cause the charging line to jam or damage during the telescopic process. In addition, the retraction force control of some products is not accurate enough, so that the charging line cannot accurately stay at the length expected by the user after being released, or the retraction is too fast, causing inconvenience to the user. INVENTION CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model provides a rotary charger telescopic structure, which solves the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model realizes the following technical scheme: a rotary charger telescopic structure, comprising a lower shell and an upper shell connected by buckling, the inside of the lower shell and the upper shell is jointly connected with a rotating disc, the inside of the upper shell is provided with a guide groove, the inside of the guide groove is provided with a sliding block, the bottom end of the sliding block is connected with a convex column, the top end of the rotating disc is connected with an inner ring body, a plurality of first guide blocks and second guide blocks are circumferentially distributed between the rotating disc and the inner ring body, a sliding groove one is arranged between the rotating disc and the plurality of second guide blocks, a sliding groove two is arranged between the inner ring body and the plurality of second guide blocks, a plurality of convex teeth are arranged on the outside of the inner ring body, the convex column slides in the sliding groove one or the sliding groove two, and the end of the sliding block can be clamped with the convex teeth.

[0006] Further, the bottom end of the rotating disc is connected with a winding drum, the inner side of the winding drum is provided with a limiting block, an upper clamping groove is arranged between the winding drum and the limiting block, and a wire limiting groove is arranged at the edge of the winding drum.

[0007] Further, the winding drum is externally wound with a charging line, the inner ring body is fixed with a conductive disc inside, the inside of the upper shell is mounted with a PCB board, one end of the charging line extends to the outside through the opening reserved by the lower shell and the upper shell, the other end is clamped inside the wire limiting groove, and the conductive wire core at the other end is connected with the bottom end of the conductive disc.

[0008] Further, the lower shell and the rotating disc are jointly connected with a coil spring, which can automatically retract the charging wire into the lower shell and the upper shell when the charging wire is loosened.

[0009] Further, the inside of the lower shell is connected with a shaft body, the inside of the shaft body is provided with a lower clamping groove, the coil spring is located in the inside of the winding drum, one end of the coil spring is clamped in the inside of the lower clamping groove, and the other end is clamped in the inside of the upper clamping groove.

[0010] Further, the inside of the PCB is embedded with a first terminal, the upper part of the PCB is provided with a second terminal, the second terminal is exposed outside the upper shell, the bottom end of the first terminal is in contact with the top end of the conductive disc, and relative rotation can occur between the two.

[0011] Further, the end of the sliding block is provided with a clamping protruding edge, the outer side of the first guide block is provided with an outer arc-shaped edge, and the inner side is provided with an inner arc-shaped edge.

[0012] Further, the edge of the bottom end of the rotating disc is provided with a plurality of guide protruding edges, and the outer edge of the inner ring body is provided with a plurality of transition protruding edges.

[0013] The utility model provides a kind of telescopic structure of rotary charger.Compared with prior art, it has the following beneficial effects:

[0014] The telescopic structure of rotary charger realizes smooth and smooth operation of charging wire in telescopic process by precise guide mechanism and sliding slot structure.This improvement not only reduces the friction and collision between convex column and guide block, prolongs the service life of product, more importantly, it provides more comfortable and smooth charging wire operation experience for user.In actual use process, user can easily and accurately control the extension length of charging wire, without worrying about the inconvenience caused by jamming or excessive resistance.Meanwhile, the structure also ensures the stability and controllability of charging wire in retraction process, avoids the user's distress caused by retraction too fast or too slow.This improvement not only improves the practicability of product, but also reflects the deep understanding and care of user's needs in details, so that rotary charger is more humanized and convenient in use. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the split structure schematic diagram of the utility model;

[0016] Figure 2 It is the structure schematic diagram of upper shell in the utility model;

[0017] Figure 3 It is the structure schematic diagram of rotating disc in the utility model;

[0018] Figure 4The utility model discloses a structure diagram of the lower shell of the utility model;

[0019] Figure 5 The utility model discloses a structure diagram of the lower shell of the utility model;

[0020] Figure 6 The utility model discloses a structure diagram of the PCB board of the utility model;

[0021] Figure 7 The utility model discloses a half sectional view after the assembly of the utility model;

[0022] Figure 8 The utility model discloses a schematic diagram of the utility model at the instant of the meeting of the convex tooth and the sliding block;

[0023] Figure 9 The utility model discloses a schematic diagram of the utility model at the instant of the meeting of the clamping convex edge and the transition convex edge;

[0024] Figure 10 The utility model discloses a schematic diagram of the utility model at the instant of the clamping of the convex tooth and the clamping convex edge;

[0025] Figure 11 The utility model discloses a dynamic schematic diagram Figure 1 ;

[0026] Figure 12 The utility model discloses a dynamic schematic diagram Figure 2 .

[0027] In the drawing: 1, lower shell;11, shaft body;12, lower clamping groove;2, upper shell;21, guide groove;22, sliding block;221, clamping convex edge;23, convex column;3, rotating disc;31, inner ring body;32, first guide block;321, outer arc edge;322, inner arc edge;33, second guide block;34, sliding groove one;35, sliding groove two;36, convex tooth;37, winding drum;38, limiting block;39, upper clamping groove;310, wire limiting groove;311, guide convex edge;321, transition convex edge;4, charging wire;5, coil spring;6, conductive disc;7, PCB board;71, first terminal;72, second terminal. DETAILED DESCRIPTION

[0028] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0029] Please refer to Figures 1-10The utility model provides a technical scheme: a rotary charger telescopic structure, it is mainly including lower casing 1, upper casing 2, carousel 3, charging wire 4, coil spring 5, conductive disc 6 and PCB board 7, wherein,

[0030] Lower casing 1, upper casing 2 form a closed space through buckle connection, are used for accommodating inside rotating mechanism and charging wire.Lower casing 1 and upper casing 2's design should ensure the stability and aesthetic property of structure;

[0031] Carousel 3 is located inside lower casing 1 and upper casing 2, and is connected with together rotation, and carousel 3 is as core component, carries coil drum 37, inner ring body 31 and guide block and so on structure;

[0032] Charging wire 4 is wound in the outside of coil drum 37, is used for connecting with external equipment and charges.Charging wire 4's one end extends to outside through the opening reserved of lower casing 1 and upper casing 2, and the other end is clamped in the inside of wire limiting groove 310, and is connected with the bottom end of conductive disc 6;

[0033] Coil spring 5 is connected between lower casing 1 and carousel 3, is used for providing retraction force when loosening charging wire 4, makes charging wire 4 can automatically retract to inside lower casing 1 and upper casing 2;

[0034] Conductive disc 6 is fixed in the inside of inner ring body 31, and contacts one terminal 71 on PCB board 7, is used for transmitting electric energy.Conductive disc 6 and carousel 3 keep relative rotation between, to ensure that charging wire will not be hindered in the process of telescoping;

[0035] PCB board 7 is installed in the inside of upper casing 2, and one terminal 71 and second terminal 72 are embedded and installed on it.Second terminal 72 is exposed in the outside of upper casing 2, is used for connecting with external power supply;

[0036] More specifically: the inside of the upper shell 2 is provided with a guide slot 21, the inside of the guide slot 21 is slidably provided with a sliding block 22, the bottom end of the sliding block 22 is connected with a convex column 23, which is used to cooperate with the structure between the rotating disc 3 and the inner ring body 31, the top end of the rotating disc 3 is connected with the inner ring body 31, and the circumferential distribution between the two is provided with a plurality of first guide blocks 32 and second guide blocks 33, which are used to guide the sliding of the convex column 23 in the sliding slot one 34 or the sliding slot two 35, and the end of the sliding block 22 (that is, the clamping convex edge 221) is clamped with the convex teeth 36, the bottom end of the rotating disc 3 is connected with a winding drum 37, the inside of the winding drum 37 is provided with a limiting block 38, and the winding drum 37, the limiting block 38 are provided with an upper clamping groove 39, which is used to clamp one end of the charging wire 4, and the edge of the winding drum 37 is also provided with a wire limiting groove 310, which is used to fix the other end of the charging wire 4, and the inside of the PCB board 7 is embeddedly installed with a first terminal 71, and the upper part of the PCB board 7 is installed with a second terminal 72, the first terminal 71 is in contact with the top end of the conductive disc 6, which is used to transmit electric energy; and the second terminal 72 is exposed outside the upper shell 2, which is used to be connected with an external power supply.

[0037] In addition, the end of the sliding block 22 is provided with a clamping convex edge 221, the outside of the first guide block 32 is provided with an outer arc-shaped edge 321, the inside is provided with an inner arc-shaped edge 322, the edge of the bottom end of the rotating disc 3 is provided with a plurality of guide convex edges 311, and the outer edge of the inner ring body 31 is provided with a plurality of transition convex edges 312.

[0038] When the user needs to charge, one end of the charging wire 4 can be manually pulled out from the opening of the lower shell 1 and the upper shell 2, at the moment of pulling, the rotating disc 3 rotates counterclockwise (for example, in the overhead view), the convex column 23 is pushed by the outer arc-shaped edge 321 of the first guide block 32, so that the convex column 23 and the sliding block 22 move to the right as a whole, and as the pulling continues, when the sliding block 22 meets the convex teeth 36, because of the transition of the clamping convex edge 221, a plurality of convex teeth 36 can pass the position of the clamping convex edge 221, so the charging wire 4 can be pulled all the time, and at the same time, the coil spring 5 is constantly contracted. Figure 8

[0039] When the length of the charging wire 4 meets the user's demand, the user stops pulling the charging wire 4, and under the action of the coil spring 5, the rotating disc 3 rotates clockwise, at this time, the convex column 23 is extruded by the outer guide convex edge 311 and the inner arc-shaped edge 322, the sliding block 22 moves to the left, the convex column 23 enters the sliding slot two 35 and continues to move, until the clamping convex edge 221 of the sliding block 22 is clamped with the convex teeth 36, at this time, even if there is the action of the coil spring 5, the charging wire 4 pulled out will not be completely retracted.

[0040] ​When the charging is completed, the user pulls the charging cord 4 again for a short distance, at this time the rotating disc 3 rotates counterclockwise, in the rotating process, the convex column 23 is pushed by the outer arc-shaped edge 321, the slider 22 will move to the right side again, until the convex column 23 is located in the inside of the sliding groove one 34, at this time the charging cord 4 is released, the convex column 23 will always make a circular motion in the sliding groove 34, and will not be engaged, so as to realize the storage of the charging cord 4.

Claims

1. A telescopic structure for a rotary charger, comprising a lower housing (1) and an upper housing (2) that are fastened together, characterized in that, The lower housing (1) and the upper housing (2) are rotatably connected to a turntable (3). The upper housing (2) is provided with a guide groove (21). A slider (22) is slidably arranged inside the guide groove (21). A protruding post (23) is connected to the bottom end of the slider (22). An inner ring body (31) is connected to the top end of the turntable (3). Several first guide blocks (32) and second guide blocks (33) are circumferentially distributed between the turntable (3) and the inner ring body (31). A first sliding groove (34) is provided between the turntable (3) and the several second guide blocks (33). A second sliding groove (35) is provided between the inner ring body (31) and the several second guide blocks (33). Several protruding teeth (36) are provided on the outside of the inner ring body (31). The protruding post (23) slides inside the first sliding groove (34) or the second sliding groove (35). The end of the slider (22) can engage with the protruding teeth (36).

2. The telescopic structure of a rotary charger according to claim 1, characterized in that, The bottom end of the turntable (3) is connected to a drum (37), a limit block (38) is provided on the inner side of the drum (37), an upper slot (39) is provided between the drum (37) and the limit block (38), and a wire limit slot (310) is provided on the edge of the drum (37).

3. The rotary charger telescopic structure according to claim 2, characterized in that, The outer side of the spool (37) is wound with a charging cable (4), the inner ring (31) is fixed with a conductive disk (6), the upper shell (2) is installed with a PCB board (7), one end of the charging cable (4) extends to the outside through the openings reserved in the lower shell (1) and the upper shell (2), the other end is engaged in the inside of the wire limiting groove (310), and the conductive core of the other end is connected to the bottom end of the conductive disk (6).

4. The telescopic structure of a rotary charger according to claim 1, characterized in that, A coil spring (5) is connected between the lower housing (1) and the turntable (3). The coil spring (5) can automatically retract the charging cable (4) into the lower housing (1) and the upper housing (2) when the charging cable (4) is released.

5. The telescopic structure of a rotary charger according to claim 4, characterized in that, The lower housing (1) is connected to a shaft (11), and the shaft (11) has a lower slot (12) inside. The coil spring (5) is located inside the drum (37). One end of the coil spring (5) is engaged inside the lower slot (12), and the other end is engaged inside the upper slot (39).

6. The telescopic structure of a rotary charger according to claim 3, characterized in that, The PCB board (7) has a first terminal (71) embedded inside, and a second terminal (72) is installed on the upper part of the PCB board (7). The second terminal (72) is exposed outside the upper housing (2). The bottom end of the first terminal (71) is in contact with the top end of the conductive disk (6), and the two can rotate relative to each other.

7. The telescopic structure of a rotary charger according to claim 1, characterized in that, The end of the slider (22) is provided with a locking protrusion (221), and the outer side of the first guide block (32) is provided with an outer arc edge (321), and the inner side is provided with an inner arc edge (322).

8. The telescopic structure of a rotary charger according to claim 1, characterized in that, The bottom edge of the turntable (3) is provided with several guide protrusions (311), and the outer edge of the inner ring (31) is provided with several transition protrusions (312).

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