Charging wire automatic winding and storage mechanism

Abstract

The utility model discloses an automatic charging wire winding and storing mechanism, relates to the technical field of charging wires, solves the technical defect that an existing charging wire storing mechanism is inconvenient to use, and comprises a shell, a winding wheel and a coil spring. A locking groove is further formed in the outer side face of the reel, a locking clamping piece is further arranged on the shell, and the locking clamping piece is matched with the locking groove to prevent the reel from rotating reversely. The locking clamping piece comprises a swing arm, and a clamping pin protruding towards the locking groove is arranged on the swing arm. The locking groove comprises an annular groove main body which is concavely arranged on the outer side surface of the reel, more than two guide clamping blocks and more than two guide blocks are arranged in the groove main body, the guide clamping blocks and the guide blocks are sequentially and alternately distributed in the annular groove main body at intervals, and the annular groove main body is divided into an inner ring and an outer ring; and after the charging wire is used, the charging wire is pulled out by a small length again and released, the charging wire is completely wound and stored on the winding wheel, the operation is convenient and rapid, and no key operation is needed.

Description

TECHNICAL FIELD

[0001] The utility model relates to charging wire material technical field, especially to the structure improvement aspect of charging wire material storage mechanism for mobile phone and other electronic product charging. BACKGROUND

[0002] At present, in order to solve the technical problem that various charging wire materials are stored disorderly and inconvenient to carry, generally manual winding device is used to wind and store, or spring winding structure is used to realize automatic winding storage. Manual winding storage is inconvenient to use and low in efficiency. The spring winding structure realizes automatic winding storage, in order to keep the state of pulling out after the charging wire material is pulled out, generally uses a ratchet mechanism to implement self-locking, and when storage is needed, the self-locking is released by a button, that is, the button operation is inconvenient to use. UTILITY MODEL CONTENTS

[0003] In summary, the utility model aims at solving the technical deficiency that the existing charging wire material storage mechanism is inconvenient to use, and proposes a charging wire material automatic winding storage mechanism.

[0004] In order to solve the technical problems proposed in the utility model, the technical scheme adopted is as follows:

[0005] A charging wire material automatic winding storage mechanism, comprising a shell, a winding wheel is movably supported in the shell through a fixed shaft, the inner side of the winding wheel has a hollow shaft, a spring is arranged in the hollow shaft, one end of the spring is connected to the fixed shaft, the other end of the spring is connected to the side wall of the hollow shaft, the hollow shaft is wound with a charging wire material, the inner end of the charging wire material is connected with a conductive brush assembly, the conductive brush assembly is embedded and fixed on the winding wheel, and the conductive brush assembly is exposed from the outer side of the winding wheel, the outer end of the charging wire material is connected with a charging plug, the charging plug is arranged outside the shell, an annular conductive sheet is arranged on the first inner wall surface opposite to the outer side of the winding wheel in the shell, the conductive brush assembly and the annular conductive sheet are in sliding fit and electrically connected. A locking groove is further arranged on the outer side of the winding wheel, and a locking piece is further arranged on the first inner wall surface of the shell. The locking piece and the locking groove are matched to prevent the winding wheel from rotating reversely under the action of the spring force.

[0006] The locking piece comprises a swing arm, the swing arm is swingably connected to the shell through a swing arm shaft, and a locking pin is arranged on the swing arm and protrudes into the locking groove.

[0007] The locking groove comprises a ring-shaped groove main body arranged on the outer side of the winding wheel, two or more guide clamping blocks and two or more guide blocks are arranged in the groove main body, the guide clamping blocks and the guide blocks are arranged in the groove main body in turn and alternately at intervals, and the groove main body is divided into an inner ring and an outer ring. Wherein:

[0008] The front end of the guiding clamping block is provided with a V-shaped groove matched with the clamping pin to prevent the winding wheel from rotating clockwise under the spring elastic force; the guiding clamping block further comprises an outer side edge for guiding the clamping pin from the inner ring to the outer ring when the winding wheel rotates counterclockwise;

[0009] The guiding block comprises a tail end for guiding the clamping pin separated from the V-shaped groove into the inner ring when the winding wheel rotates counterclockwise;

[0010] The outer side wall of the inner ring is provided with an arc-shaped inner protrusion for guiding the clamping pin in the inner ring to the outer side edge of the guiding clamping block when the winding wheel rotates counterclockwise;

[0011] The inner side wall of the outer ring is provided with an arc-shaped outer protrusion for guiding the clamping pin in the outer ring to the position capable of being clamped by the V-shaped groove when the winding wheel rotates clockwise.

[0012] The further defined technical features of the utility model include:

[0013] The shell comprises a front shell and a rear shell connected together, the front shell and the swing arm shaft are in an integrated structure, the swing arm is provided with a shaft hole corresponding to the swing arm shaft, and the shaft hole of the swing arm is movably sleeved with the swing arm shaft; the swing arm shaft is sleeved with a flexible gasket, and the gasket is located between the inner wall of the front shell and the swing arm.

[0014] The outer end of the swing arm shaft is provided with a clamping head for preventing the swing arm from falling off.

[0015] The inner wall of the front shell is provided with a grease groove in the movable region of the swing arm, the swing arm is arranged in the grease groove, and solid lubricating oil is filled in the grease groove.

[0016] The utility model has the beneficial effects that when a user needs to charge the mobile phone, the charging wire material is directly pulled out to the required length, then the charging wire material is loosened, and under the cooperation of the locking clamping piece and the locking groove, the winding wheel is locked; when the charging wire material is used up, the user takes off the charging plug from the mobile phone, then a small length of the charging wire material is pulled out and released, and under the elastic force of the coil spring, the charging wire material is completely wound and stored on the winding wheel, so that the operation is convenient and fast without any key operation. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0018] Figure 2 It is another three-dimensional structure schematic view of the utility model from another angle;

[0019] Figure 3 It is Figure 1 an exploded state structure schematic view;

[0020] Figure 4 It isFigure 2 a disassembled state structure diagram of the shell;

[0021] Figure 5 a front shell inner side structure diagram of the shell of the utility model;

[0022] Figures 6-9 four kinds of cooperation state structure diagrams between the locking clamping piece and the locking groove of the utility model. DETAILED DESCRIPTION

[0023] The structure of the utility model will be further described in combination with the preferred specific embodiments of the utility model with reference to the drawings.

[0024] Referring to Figures 1 to 5 The utility model discloses a kind of automatic winding storage mechanism of charging wire, including shell 1, hollow shaft 31 is provided with coil spring in the hollow shaft 31 inside surface of wire reel 3, when fixed shaft 2 passes through the shaft hole 32 of wire reel 3, wire reel 3 can rotate clockwise or counterclockwise in the support of fixed shaft 2 in shell 1, to realize that wire reel 3 can automatically wind storage charging wire, one end of coil spring is connected on the fixed shaft 2, the other end of coil spring is connected on the side wall of hollow shaft 31, charging wire is wound on hollow shaft 31, the inner end of charging wire is connected with conductive brush assembly, conductive brush assembly is embedded and fixed on wire reel, and conductive brush assembly exposes from the outside of wire reel 3, the outer end of charging wire is connected with charging plug, charging plug is placed outside shell, annular conductive sheet is arranged on the first inner wall surface opposite to the outside of wire reel in shell, conductive brush assembly and annular conductive sheet are slidably connected, and electrically connected;The structure of coil spring, charging wire, conductive brush assembly and annular conductive sheet of the utility model is same with the structure of coil spring, charging wire, conductive brush assembly and annular conductive sheet of conventional ratchet mechanism's automatic winding storage mechanism of charging wire, not the point of the present application, not shown in the drawing.

[0025] The utility model relative to prior art main improvement point is that: the outside of wire reel 3 is equipped with locking groove 33, locking clamping piece 4 is further equipped on the first inner wall surface 10 of shell 1, locking clamping piece 4 and locking groove 33 cooperate to prevent wire reel 3 from rotating reversely under the action of coil spring elastic force.

[0026] The specific structure for preventing wire reel 3 from rotating reversely under the action of coil spring elastic force includes:

[0027] Locking clamping piece 4 includes swing arm 41, swing arm 41 is connected with shell 1 relative swing through swing arm shaft 42, and card pin 43 protruding into locking groove 33 is arranged on swing arm 41.

[0028] The locking groove 33 includes an annular groove body recessed into the outer side of the winding wheel. Two or more guide engaging blocks 51 and two or more guide blocks 52 are provided within the groove body. The guide engaging blocks 51 and guide blocks 52 are alternately and spaced apart within the annular groove body, dividing the annular groove body into an inner ring 331 and an outer ring 332. The accompanying drawings illustrate a preferred configuration with three guide engaging blocks 51 and three guide blocks 52, which are circumferentially distributed around the fixed shaft 2. Figure 6 The shaded area represents the movable area accessible by the locking pin 43. The structure of three guide locking blocks 51 and three guide blocks 52 provides balanced force, good stability, and precise adjustment; in specific implementation, a structure of two guide locking blocks 51 and two guide blocks 52 can also be used.

[0029] by Figure 6 Taking the illustrated state as an example, the outer casing is relatively stationary, and the swing arm shaft 42 on the outer casing remains stationary. During the clockwise or counterclockwise rotation of the winding wheel 3, guided by the guide block 51, guide block 52, the outer wall of the inner ring 331, and the inner wall of the outer ring 332, the locking pin 43 moves within the shaded area of ​​the groove body, meaning the swing arm 41 swings around the swing arm shaft 42; where,

[0030] The guide block 51 has a V-shaped groove 511 at its front end that cooperates with the locking pin 43 to prevent the winding wheel 3 from rotating clockwise under the action of the spring force; Figure 6 The state shown is as follows: the charging cable is pulled out from the outer casing 1, the winding wheel 3 rotates counterclockwise, the coil spring is compressed and stored energy, after the external force of pulling out the charging cable is released, the locking pin 43 is placed in the V-groove 511, and the winding wheel 3 is in a locked state.

[0031] Reference Figure 7 As shown, the guide block 52 includes a winding wheel 3 that, when rotating counterclockwise, guides the locking pin 43, which has disengaged from the V-groove, to the end of the inner ring 331. That is, when it is necessary to store the charging cable, a section of the charging cable is pulled out, and the winding wheel 3 continues to rotate counterclockwise, so that the end of the guide block 52 guides the locking pin 43 into the inner ring 331. After the charging cable is released, it rotates clockwise under the action of the spring force. Since the locking pin 43 located in the inner ring 331 cannot enter the V-groove 511, the winding wheel 3 can rotate clockwise without obstruction under the spring force.

[0032] Reference Figure 8As shown in the figure, the inner wall of the inner ring 331 is provided with an arc-shaped inner protrusion 3311 which guides the catch pin 43 in the inner ring 331 away from the outer side of the guide block 51 when the winding wheel 3 rotates counterclockwise; the guide block 51 further comprises an outer side 512 which guides the catch pin 43 from the inner ring 331 to the outer ring 332 when the winding wheel 3 rotates counterclockwise; the inner wall of the outer ring 332 is provided with an arc-shaped outer protrusion 3321 which guides the catch pin 43 in the outer ring 332 to the position which can be clamped by the V-shaped groove 511 when the winding wheel 3 rotates clockwise, that is, to the position which can be clamped by the V-shaped groove 511 when the winding wheel 3 rotates counterclockwise. Figure 9 As shown in the figure, when the charging wire is released, the winding wheel 3 rotates clockwise under the action of the spring force, and returns to the state shown in the figure. Figure 6 As shown in the figure, the catch pin 43 is placed in the V-shaped groove 511, and the winding wheel 3 is in the locked state.

[0033] The shell 1 comprises a front shell 11 and a rear shell 12 which are connected together, the front shell 11 and the swing arm shaft 42 are in an integrated structure, the swing arm 41 is provided with a shaft hole corresponding to the swing arm shaft 42, and the swing arm 41 is movably sleeved with the swing arm shaft 42; the swing arm shaft 42 is sleeved with a flexible gasket, and the gasket is located between the inner wall of the front shell 11 and the swing arm 41. The flexible gasket can increase the friction between the inner wall of the front shell 11 and the swing arm 41, so that the swing arm 41 can rotate around the swing arm shaft 42 under the movement of the catch pin 43, and when the catch pin 43 is not subjected to external force, the swing arm 41 remains stationary relative to the inner wall of the front shell 11 under the action of friction, thereby improving the self-locking reliability of the utility model.

[0034] In order to ensure that the swing arm 41, the flexible gasket and the inner wall of the front shell 11 can be closely attached to each other, after the front shell 11 and the rear shell 12 are connected together, the swing arm 41 abuts against the outer side of the winding wheel 3, and the swing arm 41 is in frictional contact with the winding wheel 3; or a clamping head is arranged on the outer end of the swing arm shaft 42 to prevent the swing arm 41 from falling off, and the swing arm 41 no longer abuts against the winding wheel 3.

[0035] In order to better prevent the swing arm 41 from being deflected under the action of its own gravity, the inner wall of the front shell 11 is provided with a grease groove 111 in the movable region of the swing arm 41, the swing arm 41 is placed in the grease groove 111, and solid lubricating oil is filled in the grease groove 111. The solid lubricating oil has better adhesion than liquid lubricating oil, so that the swing arm 41 will not rotate under the action of its own gravity, and the swing arm 41 can smoothly rotate around the swing arm shaft 42 when the catch pin 43 is subjected to external force.

Claims

1. A kind of automatic winding of charging wire material storage mechanism, including shell, wire reel is supported by fixed shaft in shell, wire reel inside surface has hollow axle, hollow axle is equipped with spring, one end of spring is connected in the fixed shaft, the other end of spring is connected in hollow axle side wall, hollow axle is wound with charging wire material, the inner end of charging wire material is connected with conductive brush component, conductive brush component is embedded in fixed in wire reel, and conductive brush component exposes from wire reel outside surface, the outer end of charging wire material is connected with charging plug, charging plug is placed outside shell, annular conductive sheet is equipped on the first inner wall surface opposite with wire reel outside surface in shell, conductive brush component and annular conductive sheet sliding fit, electrically connected;With the characteristics that: The wire winding wheel outer side is further provided with a locking groove, and the first inner wall of the shell is further provided with a locking catch, which cooperates with the locking groove to prevent the wire winding wheel from rotating reversely under the action of the spring force. The locking catch comprises a swing arm, which is swingably connected to the shell through a swing arm shaft, and a catch pin protruding into the locking groove is arranged on the swing arm. The locking groove comprises a ring-shaped groove body arranged on the outer side of the wire winding wheel, and two or more guide catches and two or more guide blocks are arranged in the groove body, the guide catches and the guide blocks are alternately and spacedly arranged in the ring-shaped groove body, and the ring-shaped groove body is divided into an inner ring and an outer ring. The front end of the guide catch is provided with a V-shaped groove cooperating with the catch pin to prevent the wire winding wheel from rotating clockwise under the action of the spring force, and the outer side of the guide catch further comprises an outer side edge guiding the catch pin from the inner ring to the outer ring when the wire winding wheel rotates counterclockwise. The guide block comprises a tail end guiding the catch pin separated from the V-shaped groove into the inner ring when the wire winding wheel rotates counterclockwise. An arc-shaped inner protrusion is arranged on the outer side wall of the inner ring to guide the catch pin in the inner ring to the outer side edge of the guide catch when the wire winding wheel rotates counterclockwise. An arc-shaped outer protrusion is arranged on the inner side wall of the outer ring to guide the catch pin in the outer ring to a position capable of being engaged by the V-shaped groove when the wire winding wheel rotates clockwise.

2. The automatic winding and storing mechanism for charging wire according to claim 1, characterized in that: The shell comprises a front shell and a rear shell connected together, the front shell and the swing arm shaft are an integral structure, the swing arm is provided with a shaft hole corresponding to the swing arm shaft, and the shaft hole of the swing arm is movably sleeved with the swing arm shaft; a flexible gasket is sleeved on the swing arm shaft, and the gasket is located between the inner wall of the front shell and the swing arm.

3. The automatic winding and storing mechanism of a charging wire according to claim 2, characterized in that: The outer end of the swing arm shaft is provided with a catch head preventing the swing arm from falling off.

4. The automatic winding and storing mechanism of a charging wire according to claim 2, characterized in that: An oil groove is arranged on the inner wall of the front shell in the swing arm movement area, the swing arm is arranged in the oil groove, and solid lubricating oil is filled in the oil groove.

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