Cable winding apparatus and charging device

Abstract

The present application relates to the technical field of cable winding and payout, and provides a cable winding apparatus. The cable winding apparatus comprises a housing, a first abutting member and a second abutting member arranged on the housing, and a cable wound inside the housing, the cable being capable of extending or retracting relative to the housing, and the first abutting member and the second abutting member being capable of moving away from or toward each other, wherein during the retraction of the cable into the housing, the first abutting member and the second abutting member respectively abut against two opposite sides of the cable, and generate frictional resistance on a surface of the cable in a direction opposite a direction of motion thereof, thereby slowing down a cable retraction speed; during the extension of the cable, the first abutting member moves away from the second abutting member, so that a gap is formed between the cable and the first abutting member and / or the second abutting member, thereby facilitating easy cable payout.

Description

Wire winding device and charging device

[0001] This application claims priority to Chinese Patent Application No. 202422307768.5, filed on September 20, 2024, entitled "Wire Winding Device and Charging Device", and which is incorporated by reference herein.

TECHNICAL FIELD

[0002] The present application relates to the technical field of winding wire, in particular to a wire winding device and a charging device.

BACKGROUND

[0003] The current market ordinary wire winder does not have a deceleration function. When the wire winder is winding, the winding speed is too fast. Due to the long cable and the influence of the weight at the tail, the cable will be quickly swung irregularly, which can easily cause personal injury and damage to the cable, affecting the service life of the wire winder.

SUMMARY

[0004] The present application provides a wire winding device and a charging device to solve the problem of too fast winding speed of the wire winder.

[0005] In some embodiments, a wire winding device is provided, which includes a housing, a first abutting member and a second abutting member. The housing has a wire material wound inside. The wire material can be extended or retracted relative to the housing. The first abutting member and the second abutting member are arranged on the housing. The first abutting member and the second abutting member can be close to or away from each other. When the wire material is retracted, the first abutting member and the second abutting member abut the opposite sides of the wire material, respectively. When the wire material is extended, a gap is formed between the wire material and the first abutting member and / or the second abutting member.

[0006] In some embodiments, when the wire material is retracted, the first abutting member and the second abutting member have a first distance therebetween. When the wire material is extended, the first abutting member and the second abutting member have a second distance therebetween. The first distance is less than the second distance.

[0007] In some embodiments, the first abutting member is fixedly arranged on the housing, and the second abutting member is movable relative to the housing.

[0008] Alternatively, the second abutting member is fixedly arranged on the housing, and the first abutting member is movable relative to the housing.

[0009] Alternatively, the first abutting member and the second abutting member are both movable relative to the housing.

[0010] In some embodiments, the winding device further comprises an elastic member arranged on the housing, the elastic member being configured to provide elastic force to the first abutting member and / or the second abutting member, so that the first abutting member and the second abutting member are close to each other when the wire is retracted.

[0011] In some embodiments, the first abutting member comprises a first friction wheel, and the second abutting member comprises a second friction wheel, the first friction wheel being in abutment with the wire and rolling relative to the wire, and the second friction wheel being in abutment with the wire and rolling relative to the wire when the wire is retracted into the housing.

[0012] In some embodiments, the first friction wheel and the second friction wheel move in opposite directions when the wire is retracted.

[0013] In some embodiments, the housing is provided with a track groove, the first abutting member being capable of moving along the track groove to approach or move away from the second abutting member; and / or,

[0014] the second abutting member being capable of moving along the track groove to approach or move away from the first abutting member.

[0015] In some embodiments, the track groove is arc-shaped, and the center of the arc-shaped track groove is located on a side of the track groove away from the wire.

[0016] In some embodiments, the elastic member comprises a torsion spring, the torsion spring comprising a main body portion and a first leg portion extending from the main body portion, the main body portion being connected to the housing, the first leg portion being connected to the first abutting member and driving the first abutting member to approach the second abutting member when the wire is retracted, and / or the first leg portion being connected to the second abutting member and driving the second abutting member to approach the first abutting member when the wire is retracted.

[0017] In some embodiments, the main body portion further extends a second leg portion, and the housing is fixedly provided with a locking block, the second leg portion being snap-connected to the locking block.

[0018] In some embodiments, the elastic member further comprises a third pin shaft, the third pin shaft being connected to the housing, and the main body portion being sleeved on the third pin shaft.

[0019] In some embodiments, the elastic member comprises a spring sheet, one end of the spring sheet being fixedly arranged on the housing, and the other end of the spring sheet being connected to the first abutting member and / or the second abutting member and driving the first abutting member and the second abutting member to approach each other when the wire is retracted.

[0020] In some embodiments, the elastic member comprises a spring and a lever, the lever is hinged to the housing, one end of the lever is connected with the first abutting member; one end of the spring is connected with the housing, and the other end is connected with the lever to drive the first abutting member to approach the second abutting member when the wire is retracted.

[0021] In some embodiments, the spring and the first abutting member are located on the same side of the hinged position of the lever and the housing, and the spring is in a tensile state during the wire retraction.

[0022] Or the spring and the first abutting member are respectively located on both sides of the hinged position of the lever and the housing, and the spring is in a compression state during the wire retraction.

[0023] In some embodiments, a charging device is provided, comprising the wire winding device described above, which is used to accommodate the wire.

[0024] In the wire winding device provided by the embodiments, the first abutting member and / or the second abutting member can move away from or approach each other, the first abutting member and the second abutting member abut on the opposite sides of the wire respectively when the wire is retracted, and the two sides of the wire are provided with extrusion force, the first abutting member and the second abutting member can generate frictional resistance opposite to the movement direction of the wire on the surface of the wire when the wire moves relative to the first abutting member and the second abutting member, that is, the wire winding speed is slowed down, and the user is prevented from being injured by the irregular swinging of the wire due to the too fast wire winding speed. When the wire is extended, the first abutting member and the second abutting member move away from each other, so that at least one of the first abutting member and the second abutting member is not in contact with the wire, thereby reducing the frictional resistance of the first abutting member and the second abutting member to the wire, and making the wire more smooth when being pulled out. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0026] Fig. 1 is a schematic diagram of the overall structure of the wire winding device in some embodiments of the present application;

[0027] Fig. 2 is a partial enlarged schematic view of A in Fig. 1;

[0028] Fig. 3 is an exploded view of the wire winding device in the embodiment of Fig. 1;

[0029] Fig. 4 is a schematic diagram of the overall structure of the wire winding device in another embodiment;

[0030] Fig. 5 is a partial enlarged view of the embodiment of Fig. 4 at B;

[0031] Fig. 6 is an exploded view of the wire winding device of the embodiment of Fig. 4;

[0032] Fig. 7 is a schematic view of the overall structure of a wire winding device in another embodiment;

[0033] Fig. 8 is a partial enlarged view of the embodiment of Fig. 7 at C.

[0034] In the above figures: 10 - housing, 11 - upper shell, 12 - lower shell, 13 - wire outlet, 14 - track groove, 15 - locking block; 20 - winding reel, 21 - return member, 22 - wire; 30 - first abutting member, 31 - first friction wheel; 32 - first pin shaft; 40 - elastic member, 41 - torsion spring, 411 - main body, 412 - first leg, 413 - second leg, 42 - spring piece, 43 - spring, 44 - lever, 45 - bracket, 46 - third pin shaft; 50 - second abutting member, 51 - second friction wheel, 52 - second pin shaft.

DETAILED DESCRIPTION

[0035] The application will be further described below in conjunction with the drawings and embodiments. It is particularly pointed out that the following embodiments are only for illustrating the application, but not for limiting the scope of the application. Similarly, the following embodiments are only part of the embodiments of the application, but not all the embodiments of the application, and all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the application.

[0036] The terms "first", "second", "third" in the embodiments of the application are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second", "third" can explicitly or implicitly include at least one of the features. In the description of the application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the application are only for explaining the relative positional relationship, movement condition, etc. between the components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly. The terms "include" and "have" and any variations thereof in the embodiments of the application are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or components inherent to the process, method, product or device.

[0037] Reference to an "embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. As will be apparent to those of ordinary skill in the art, embodiments described herein can be combined with other embodiments.

[0038] Please refer to FIG. 1 to FIG. 3, FIG. 1 is a schematic diagram of the overall structure of the wire winding device in some embodiments of the application, FIG. 2 is a partial enlarged schematic view of A in FIG. 1, and FIG. 3 is an exploded view of the wire winding device in the embodiment of FIG. 1.

[0039] The application provides a wire winding device, which comprises a shell 10, the shell 10 is provided with a wire outlet 13, the shell 10 comprises an upper shell 11 and a lower shell 12 which are detachably fixedly connected, and the upper shell 11 and the lower shell 12 enclose an inner cavity. A winding disc 20 is rotatably arranged in the inner cavity of the shell 10, the winding disc 20 is in a disc structure, but is not limited to this shape, and the user can design the shape of the winding disc 20 according to the needs. A wire 22 is wound on the winding disc 20, and the winding disc 20 can rotate forward or reversely in the shell to make the wire 22 extend out of or retract into the shell 10 through the wire outlet 13 of the shell 10. A reset member 21 is arranged between the winding disc 20 and the shell 10, the reset member 21 is used to provide an elastic force opposite to the rotating direction when the winding disc 20 rotates, and the elastic restoring force of the reset member 21 enables the wire 22 to be automatically retracted when the wire 22 is extended under the action of an external force.

[0040] The reset member 21 is a structure familiar to those skilled in the art, such as a volute spring, which is not described here.

[0041] The shell 10 is provided with a first abutting member 30 and a second abutting member 50, and the first abutting member 30 and the second abutting member 50 can move away from or close to each other. In some embodiments, the first abutting member 30 is configured to be movable, and the second abutting member 50 is configured to be immovable; in some embodiments, the first abutting member 30 is configured to be immovable, and the second abutting member 50 is configured to be movable; in some embodiments, the first abutting member 30 and the second abutting member 50 are both movable. In the application, for the convenience of description, only the embodiment in which the first abutting member 30 is movable and the second abutting member 50 is immovable is described below.

[0042] The first distance between the first abutting member 30 and the second abutting member 50 is smaller than the second distance between the first abutting member 30 and the second abutting member 50 when the wire 22 is retracted into the shell 10. Specifically, the first abutting member 30 and the second abutting member 50 can be arranged on the upper shell 11, wherein the first abutting member 30 is movable relative to the upper shell 11, and the second abutting member 50 is fixed relative to the upper shell 11. During the process of retracting the wire 22 into the shell 10, the first abutting member 30 moves towards the second abutting member 50 to the first distance between the first abutting member 30 and the second abutting member 50, and at this time, the first abutting member 30 and the second abutting member 50 abut on opposite sides of the wire 22 respectively, so that the first abutting member 30 and the second abutting member 50 generate frictional resistance to the wire 22; during the process of extending the wire 22, the first abutting member 30 moves away from the second abutting member 50 to the second distance between the first abutting member 30 and the second abutting member 50, and at this time, a gap is formed between the wire 22 and the first abutting member 30 and / or the second abutting member 50.

[0043] Optionally, the first abutting member 30 can be manually driven to move towards the second abutting member 50 when the wire 22 is retracted into the shell 10. Specifically, the first abutting member 30 is connected with the shell 10 through a locking structure (not shown in the figure), which can be a buckle, a bolt or other structure familiar to those skilled in the art for easy disassembly. When the wire 22 is retracted into the shell 10, the user can manually move the first abutting member 30 towards the second abutting member 50 to the position where the first abutting member 30 and the second abutting member 50 respectively contact the opposite sides of the wire 22, and lock the position of the first abutting member 30 by using the locking structure, so as to ensure that the opposite sides of the wire 22 respectively generate frictional resistance with the first abutting member 30 and the second abutting member 50 when the wire 22 is retracted into the shell 10. When the wire 22 is extended out of the shell 10, the user can unlock the locking state of the locking structure, so that the first abutting member 30 moves away from the second abutting member 50 and forms a gap therebetween. Then, the wire 22 is pulled out of the shell 10 along the surface of the first abutting member 30, or the surface of the second abutting member 50, or the gap between the first abutting member 30 and the second abutting member 50. The surface of the wire 22 does not contact the first abutting member 30 and / or the second abutting member 50, and the wire 22 receives smaller frictional resistance, so that the wire 22 is more smoothly extended out of the shell 10.

[0044] Optionally, the first abutting member 30 can also automatically approach the second abutting member 50 when the wire 22 is retracted into the housing 10. Specifically, the wire winding device further comprises an elastic member 40 arranged on the housing 10, the elastic member 40 is configured to provide elastic force to the first abutting member 30 and / or the second abutting member 50, so that the first abutting member 30 moves in the direction of approaching the second abutting member 50 during the retraction of the wire 22. It can be understood that in this embodiment, the elastic member 40 also provides elastic force to the first abutting member 30 when the wire 22 is extended out of the housing 10. The user drives the first abutting member 30 to overcome the elastic force of the elastic member 40 and move away from the second abutting member 50 by applying external force to the wire 22, so that a gap is formed between the side of the wire 22 facing the second abutting member 50 and the second abutting member 50, and the wire 22 is extended out of the housing 10 along the surface of the first abutting member 30, that is, only the first abutting member 30 is in contact with the surface of the wire 22 when the wire 22 is extended out of the housing 10, and the wire 22 is subjected to smaller frictional resistance.

[0045] The wire winding device described above can be applied in various application scenarios that require deceleration of the wire 22, for example, the wire winding device can be applied to the storage of audio / video signal wires 22, network signal wires 22, and power supply signal wires 22 of power banks, but is not limited thereto. Since the first abutting member 30 can move away from or approach the second abutting member 50, and the first abutting member 30 moves towards the second abutting member 50 when the wire 22 is retracted into the housing 10, the first abutting member 30 and the second abutting member 50 are respectively abutted on the opposite sides of the wire 22, and provide extrusion force to the two sides of the wire 22. When the wire 22 moves relative to the first abutting member 30 and the second abutting member 50, the first abutting member 30 and the second abutting member 50 can generate frictional resistance on the surface of the wire 22 in the opposite direction of the movement direction of the wire 22, that is, decelerate the wire 22, thereby avoiding that the wire 22 swings irregularly due to too fast retraction speed and injures the user. When the wire 22 is extended out of the housing 10, the first abutting member 30 can move away from the second abutting member 50, so that at least one of the first abutting member 30 and the second abutting member 50 is not in contact with the wire 22, which can reduce the frictional resistance of the first abutting member 30 and the second abutting member 50 to the wire 22, and make the wire 22 more smooth when being pulled out.

[0046] Referring to FIG. 3, in some embodiments, the housing 10 is provided with a track groove 14, which can be arranged on the corresponding positions of the upper shell and the lower shell. The first abutting member can approach or move away from the second abutting member along the track groove. Specifically, the track groove 14 can be arc-shaped, and the center of the arc is located on the side of the track groove 14 away from the wire 22. By using the arc-shaped track groove 14, the first abutting member 30 can move more smoothly along the track groove 14, and avoid being blocked during movement, which can cause poor cooperation between the first abutting member 30 and the wire 22.

[0047] In some embodiments, the first abutting member 30 comprises a first friction wheel 31, which can be in sliding or rolling engagement with the wire 22.

[0048] In some scenarios, the first friction wheel 31 is in sliding engagement with the housing 10. Specifically, the first friction wheel 31 is in sliding engagement with the housing 10 via a first pin shaft 32, which is inserted into the track slot 14 and slides along the first track slot 14. The first friction wheel 31 is fixedly connected with the first pin shaft 32, which is fixedly connected with the elastic member 40. When the wire 22 is extended out of the housing 10 and retracted into the housing 10, the wire 22 is in sliding engagement with the first friction wheel 31, and the first friction wheel 31 generates a sliding friction force on the wire 22 in the opposite direction of the movement of the wire 22.

[0049] In some scenarios, the first friction wheel 31 is in rolling engagement with the housing 10. It can be understood that rolling engagement means that it can both slide and rotate. Specifically, the first friction wheel 31 is in rolling engagement with the housing 10 via a first pin shaft 32, which is inserted into the track slot 14 and slides along the first track slot 14. Optionally, the first friction wheel 31 is rotatably connected with the first pin shaft 32, and the elastic member 40 is fixedly connected with the first pin shaft 32; or the first pin shaft 32 is fixedly connected with the first friction wheel 31, and the elastic member 40 is rotatably connected with the first pin shaft 32. During the process of extending and retracting the wire 22 out of the housing 10, the wire 22 is in rolling engagement with the first friction wheel 31. By applying an external force to the wire 22, the wire 22 can generate a rolling friction force on the first friction wheel 31 in the same direction of the movement, thereby driving the first friction wheel 31 to rotate, and the first friction wheel 31 generates a rolling friction force on the wire 22 in the opposite direction of the movement.

[0050] According to the above-mentioned engagement relationship between the first friction wheel 31 and the wire 22, the first friction wheel 31 can generate a friction force on the wire 22 in the opposite direction of the movement of the wire 22 both when the wire 22 is extended out of the housing 10 and when the wire 22 is retracted, so the first friction wheel 31 can simultaneously slow down the wire 22 when it is extended out of the housing 10 and when it is retracted into the housing 10. It can be understood that in the rolling engagement between the first friction wheel 31 and the wire 22, since the first friction wheel 31 can rotate around the first pin shaft 32, it can avoid the wire 22 from being stuck when it is retracted into the housing 10, and at the same time, it can make the wire 22 move more smoothly when it is extended out of the housing 10.

[0051] Please continue to refer to FIG. 3, in some embodiments, the second abutting member 50 comprises a second friction wheel 51, which can be in sliding or rolling engagement with the wire 22.

[0052] In some scenarios, the second friction wheel 51 is arranged at the wire outlet 13 of the housing 10 and fixedly connected with the housing 10. When the wire 22 is extended out of the housing 10, the wire 22 is driven to move away from the second friction wheel 51 by applying an external force to the wire 22, so that a gap is formed on the side of the wire 22 facing the second friction wheel 51, i.e. the wire 22 does not contact the second friction wheel 51 in this process. When the wire 22 is retracted into the housing 10, the first friction wheel 31 moves towards the second friction wheel 51, and the wire 22 is tightly pressed on the second friction wheel 51 by the first friction wheel 31. The side of the second friction wheel 51 cooperating with the wire 22 is in sliding cooperation with the wire 22, so that the second friction wheel 51 generates a sliding friction force on the wire 22 in the opposite direction of the wire retraction.

[0053] In some scenarios, the second friction wheel 51 is arranged at the wire outlet 13 of the housing 10 and rotatably connected with the housing 10 through the second pin shaft 52. When the wire 22 is retracted into the housing 10, the second friction wheel 51 is driven to rotate by applying an external force to the wire 22 to generate a rolling friction force on the wire 22 in the same direction as the wire retraction, so that the second friction wheel 51 generates a rolling friction force on the wire 22 in the opposite direction of the wire retraction. That is, the second friction wheel 51 slows down the movement of the wire 22 when the wire 22 is retracted into the housing 10.

[0054] It can be understood that those skilled in the art can freely select the combination of the cooperation mode of the second friction wheel 51 and the wire 22 and the cooperation mode of the first friction wheel 31 and the wire 22, so as to achieve different speed reduction effects when the wire 22 is retracted into the housing 10. For example, the second friction wheel 51 and the first friction wheel 31 are respectively in rolling cooperation with the opposite sides of the wire 22; or the second friction wheel 51 and the first friction wheel 31 are respectively in sliding cooperation with the opposite sides of the wire 22; or one of the second friction wheel 51 and the first friction wheel 31 is in sliding cooperation with the wire 22, and the other is in rolling cooperation with the wire 22. In the present embodiment, the second friction wheel 51 and the first friction wheel 31 are respectively in rolling connection with the wire 22 when the wire 22 is retracted into the housing 10. In this way, when the wire 22 is retracted into the housing 10, the wire 22 generates a rolling friction force on the first friction wheel 31 and the second friction wheel 51 in the same direction as the movement direction of the wire 22, so as to drive the first friction wheel 31 and the second friction wheel 51 to rotate in opposite directions, for example, the first friction wheel 31 rotates clockwise and the second friction wheel 51 rotates counterclockwise. Then, the first friction wheel 31 and the second friction wheel 51 generate a rolling friction force on the wire 22 in the opposite direction of the movement direction of the wire 22, which can effectively slow down the wire retraction speed and avoid the wire from being stuck during retraction.

[0055] In some embodiments, the first friction wheel 31 and / or the second friction wheel 51 is provided with anti-skid patterns. By providing the anti-skid patterns, the roughness of the contact surface of the first friction wheel 31 and the second friction wheel 51 with the wire 22 is increased, thereby increasing the friction force generated on the wire 22, and effectively slowing down the wire 22.

[0056] In some embodiments, the second abutting member 50 can also be a protruding structure formed on the housing 10. For example, one side of the wire outlet 13 of the housing 10 is formed with a protruding structure, which can be in a cylindrical shape, a prismatic shape, a cam shape, or the like. The first abutting member 30 is abutted on the protruding structure by the elastic member 40, and the wire 22 passes between the first abutting member 30 and the protruding structure.

[0057] Optionally, the surface of the protruding structure in contact with the wire 22 is an arc surface. As known from the embodiment in which the second friction wheel 51 is fixedly connected to the housing 10, the second friction wheel 51 is only partially in sliding cooperation with the surface of the wire 22, and the portion of the second friction wheel 51 not in contact with the surface of the wire 22 can be in any shape. Therefore, the portion of the second friction wheel 51 in sliding cooperation with the surface of the wire 22 can also be understood as a protruding structure formed on the housing 10.

[0058] Similarly, the first abutting member 30 is not limited to the aforementioned embodiment of the first friction wheel 31. For example, the first abutting member 30 can be a cylindrical body, a prismatic body, or a cam made of rubber material, or the like. The first abutting member 30 can also be integrally formed with the elastic member 40. For example, the first abutting member 30 is a portion of the elastic member 40 close to the surface of the wire 22, that is, the elastic member 40 directly abuts on the surface of the wire 22 and exerts a pressing force on the wire 22 when the wire 22 is retracted into the housing 10.

[0059] The first abutting member 30 and the second abutting member 50 are not limited to being arranged outside the housing 10. For example, the second abutting member 50 is close to the wire outlet 13 of the housing 10 and is formed on the inner wall of the housing 10, and the first abutting member 30 and the elastic member 40 are also located inside the housing 10. The wire 22 passes between the first abutting member 30 and the second abutting member 50 and then passes out of the wire outlet 13. The first abutting member 30 and the second abutting member 50 can be located on the same side or opposite sides of the wire outlet 13, as long as the first abutting member 30 can abut on the second abutting member 50 through the elastic member 40 and the first abutting member 30 and the second abutting member 50 do not interfere with other components inside the housing 10.

[0060] Please continue to refer to FIG. 2 and FIG. 3, in some embodiments, the elastic member 40 comprises a torsion spring 41, the torsion spring 41 comprises a main body 411 and a first leg 412 and a second leg 413 extending from the main body 411, the first leg 412 is connected with the first abutting member 30 and drives the first abutting member 30 to press tightly on the surface of the first abutting member 30, the second leg 413 is fixedly connected with the shell 10. In this embodiment, a third pin shaft 46 is installed on the shell 10, the main body 411 is sleeved on the outside of the third pin shaft 46, a locking block 15 is fixedly arranged on the shell 10, the second leg 413 is in a U shape, and the second leg 413 is buckled with the locking block 15. The first leg 412 forms a swing arm structure rotating around the main body 411, and the first leg 412 transmits the torsion of the torsion spring 41 to the first abutting member 30 to make the first abutting member 30 press tightly on the surface of the wire 22, and the first leg 412 can drive the first abutting member 30 to move close to the second abutting member 50. The first leg 412 is symmetrically provided with two, and the ends of the two first legs 412 away from the main body 411 are respectively buckled with the two ends of the first pin shaft 31.

[0061] Since the torsion spring 41 is prone to fatigue damage under long-term stress during work, the buckling of the second leg 413 with the locking block 15 and the buckling of the first leg 412 with the first pin shaft 31 facilitate the disassembly and replacement of the torsion spring 41, ensure the working performance of the wire winding device in slowing down the wire winding speed, and save costs.

[0062] In addition, in this embodiment, the second leg 413 of the torsion spring 41 can always remain in the buckling and locking state with the locking block 15 when the wire 22 is extended out of or retracted into the shell 10, so that the first abutting member 30 can generate a pressing force on the wire 22 through the torsion spring 41 to abut on the surface of the wire 22 and generate a friction force on the wire 22 when the wire 22 is extended out of or retracted into the shell 10. In some scenarios, the user can also manually release the connection between the second leg 413 and the locking block 15 when paying out the wire, and manually buckle and fix the second leg 413 with the locking block 15 when winding the wire. Then the first abutting member 30 is no longer pressed tightly on the wire 22 by the torsion spring 41 when the wire 22 is extended out of the shell 10, and the first abutting member 30 can move more freely to the first matching position and generate a smaller friction force on the wire 22 when the wire 22 is extended out of the shell 10, so that the wire 22 is more smooth when being pulled out. The first abutting member 30 only presses the wire 22 when the wire 22 is retracted into the shell 10, and simultaneously with the second abutting member 50 generates a force on the wire 22 in the opposite direction of the winding direction, thereby effectively slowing down the winding speed.

[0063] Please refer to FIG. 4 to FIG. 6, FIG. 4 is a schematic diagram of the overall structure of the wire winding device in another embodiment, FIG. 5 is a partial enlarged schematic diagram of B in the embodiment of FIG. 4, and FIG. 6 is an exploded view of the wire winding device in the embodiment of FIG. 4.

[0064] In some embodiments, the elastic member 40 comprises a spring 42, one end of which is fixed to the housing 10, and the other end of which is connected to the first abutting member 30 and drives the first abutting member 30 to press against the wire 22. The two ends of the spring 42 can be respectively welded and fixed with the housing 10 and the first pin shaft 31, or can be detachably connected and fixed by bolts or other means familiar to those skilled in the art, so as to facilitate replacement of the spring 42. The spring 42 is configured as a cantilever structure extending out of the housing 10, the free end of the spring 42 is connected with the first abutting member 30, and the spring 42 exerts a force on the first abutting member 30 to move close to the second abutting member 50, so as to ensure that the first abutting member 30 and the second abutting member 50 abut on opposite sides of the wire 22 when the wire 22 is retracted into the housing 10. The spring 42 can be arranged in an arc shape or any bent shape according to the shape of the housing 10, which is not limited here.

[0065] Please refer to FIG. 7 and FIG. 8, FIG. 7 is a schematic diagram of the overall structure of the wire winding device in another embodiment, and FIG. 8 is a partial enlarged schematic diagram of position C in the embodiment of FIG. 7.

[0066] In some embodiments, the elastic member 40 comprises a spring 43 and a lever 44, the lever 44 is hinged to the housing 10, one end of the lever 44 is connected with the first abutting member 30, and the two ends of the spring 43 are respectively connected with the lever 44 and the housing 10 to drive the first abutting member 30 to press against the surface of the wire 22. Specifically, a support 45 is fixed outside the housing 10, and the lever 44 is rotationally connected with the support 45, i.e., the lever 44 is hinged to the housing 10 through the support 45.

[0067] Optionally, the spring 43 and the first abutting member 30 are located on the same side of the support 45. For example, the spring 43 is located between the support 45 and the first abutting member 30, and in this embodiment, the spring 43 remains in a stretched state when the wire 22 is retracted into the housing 10, and the spring 43 exerts a force on one end of the lever 44 close to the first abutting member 30 towards the housing 10, thereby driving the first abutting member 30 to press against the surface of the wire 22. It can be understood that in order to realize the automatic approach of the first abutting member 30 to the second abutting member 50, the spring 43 can always remain in a stretched state.

[0068] Optionally, the spring 43 and the first abutting member 30 are respectively located on opposite sides of the support 45. The spring 43 remains in a compressed state when the wire 22 is retracted into the housing 10, and the spring 43 exerts a force on one end of the lever 44 away from the first abutting member 30 away from the housing 10, thereby driving the end of the lever 44 connected with the first abutting member 30 to press against the housing 10, and further driving the first abutting member 30 to press against the surface of the wire 22. It can be understood that in order to realize the automatic approach of the first abutting member 30 to the second abutting member 50, the spring 43 can always remain in a compressed state.

[0069] It can be understood that, in combination with the foregoing embodiment in which the first abutting member 30 is configured to be immovable and the second abutting member 50 is configured to be movable, only the positions of the first abutting member 30 and the second abutting member 50 need to be changed, and the second abutting member 50 is connected to the elastic member 40, so that the second abutting member 50 can be close to or away from the first abutting member 30 under the action of the elastic member 40.

[0070] In combination with the embodiment in which the first abutting member 30 and the second abutting member 50 are both configured to be movable, the elastic member 40 can be provided with two, and the first abutting member 30 and the second abutting member 50 are respectively connected to one of the elastic members 40, and the first abutting member 30 and the second abutting member 50 are respectively close to or away from each other under the action of the elastic member 40.

[0071] In some embodiments, the application provides a charging device, which can be used for charging mobile terminals such as mobile phones and computers, and the charging device comprises the winding device described above, and the winding device is used for accommodating the wire, and the wire is a data line for transmitting power signals.

[0072] The above only describes some embodiments of the application, and does not limit the protection scope of the application, and any equivalent device or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the application.

Claims

1. A line winding device, wherein, The application relates to a winding device, comprising: a shell, a wire being wound in the shell, the wire being capable of being extended or retracted relative to the shell; a first abutting member and a second abutting member being arranged on the shell, the first abutting member and the second abutting member being capable of approaching or moving away from each other; wherein when the wire is retracted, the first abutting member and the second abutting member abut on opposite sides of the wire respectively; when the wire is extended, a gap is formed between the wire and the first abutting member and / or the second abutting member.

2. The wire winding apparatus according to claim 1, wherein When the wire is retracted, the first abutting member and the second abutting member have a first distance therebetween; when the wire is extended, the first abutting member and the second abutting member have a second distance therebetween, the first distance being smaller than the second distance.

3. The wire winding apparatus according to claim 1, wherein The first abutting member is fixedly arranged on the shell, and the second abutting member is capable of moving relative to the shell; or, the second abutting member is fixedly arranged on the shell, and the first abutting member is capable of moving relative to the shell; or, the first abutting member and the second abutting member are both capable of moving relative to the shell.

4. The wire winding apparatus according to claim 1, wherein The winding device further comprises an elastic member arranged on the shell, the elastic member being configured to provide elastic force to the first abutting member and / or the second abutting member, so that the first abutting member and the second abutting member approach each other when the wire is retracted.

5. The wire winding apparatus according to claim 1, wherein The first abutting member comprises a first friction wheel, and the second abutting member comprises a second friction wheel, when the wire is retracted into the shell, the first friction wheel abuts on the wire and is capable of rolling relative to the wire, and the second friction wheel abuts on the wire and is capable of rolling relative to the wire.

6. The wire winding apparatus according to claim 5, wherein When the wire is retracted, the first friction wheel and the second friction wheel move in opposite directions.

7. The wire winding apparatus according to any one of claims 1 to 6, wherein The shell is provided with a track groove, the first abutting member is capable of approaching or moving away from the second abutting member along the track groove; and / or, The second abutting member is capable of approaching or moving away from the first abutting member along the track groove.

8. The wire winding apparatus according to claim 7, wherein The track groove is arc-shaped, and the center of the arc-shaped track groove is located on a side of the track groove away from the wire.

9. The wire winding apparatus according to claim 4, wherein The elastic member comprises a torsion spring, the torsion spring comprises a main body portion and a first leg portion extending from the main body portion, the main body portion is connected to the shell, the first leg portion is connected to the first abutting member and drives the first abutting member to approach the second abutting member when the wire is retracted, and / or the first leg portion is connected to the second abutting member and drives the second abutting member to approach the first abutting member when the wire is retracted.

10. The wire winding apparatus according to claim 9, wherein The main body portion further extends a second leg portion, a locking block is fixedly arranged on the shell, and the second leg portion is buckled to the locking block.

11. The wire winding apparatus according to claim 9, wherein The elastic member further comprises a third pin shaft, the third pin shaft is connected to the shell, and the main body portion is sleeved on the third pin shaft.

12. The wire winding apparatus according to claim 4, wherein The elastic member comprises a spring sheet, one end of the spring sheet is fixedly arranged on the shell, and the other end of the spring sheet is connected to the first abutting member and / or the second abutting member and drives the first abutting member and the second abutting member to approach each other when the wire is retracted.

13. The wire winding apparatus according to claim 4, wherein The elastic member comprises a spring and a lever, the lever is hinged to the shell, one end of the lever is connected with the first abutting member; one end of the spring is connected with the shell, and the other end is connected with the lever to drive the first abutting member to approach the second abutting member when the wire is retracted.

14. The wire winding apparatus according to claim 13, wherein The spring and the first abutting member are located on the same side of the hinged position of the lever and the shell, and the spring is in a stretched state during wire retraction; Or the spring and the first abutting member are respectively located on the two sides of the hinged position of the lever and the shell, and the spring is in a compressed state during wire retraction.

15. A charging device, wherein, The wire winding device comprises a shell, a first abutting member, a second abutting member, and an elastic member, the first abutting member and the second abutting member are arranged in the shell, the first abutting member is connected with the second abutting member through the elastic member, and the elastic member is arranged to drive the first abutting member to approach the second abutting member when the wire is retracted.

Images