Winding device and charging equipment

Abstract

The utility model provides a wire winding device and charging equipment, and relates to the technical field of wire winding and pulling. The wire winding device comprises a shell, a first abutting piece and a second abutting piece, the first abutting piece and the second abutting piece are arranged on the shell, a wire is wound in the shell and can stretch out or retract relative to the shell, the first abutting piece and the second abutting piece can be far away from each other or close to each other, and in the process that the wire is retracted into the shell, the first abutting piece and the second abutting piece can abut against each other. The first abutting piece and the second abutting piece abut against the two opposite sides of the wire correspondingly, friction resistance opposite to the movement direction of the wire is generated on the surface of the wire, and therefore the take-up speed of the wire is reduced. In the extending process of the wire rod, the first abutting piece moves away from the second abutting piece so that a gap can be formed between the wire rod and the first abutting piece and / or the second abutting piece, and the wire rod can be smoothly pulled.

Description

Technical Field

[0001] This application relates to the technical field of coiling wire materials, and specifically relates to a wire coiling device and a charging device. Background Art

[0002] At present, ordinary wire coiling devices in the market do not have a speed reduction function. When the wire coiling device is taking up the wire, the wire taking-up speed is too fast. Due to the long length of the wire and the influence of a heavy object at the tail, the wire will swing rapidly and irregularly, which is likely to cause danger of personal injury. At the same time, it will damage the wire and affect the service life of the wire coiling device. Utility Model Content

[0003] The embodiments of this application provide a wire coiling device and a charging device, which are used to solve the problem of too fast wire taking-up speed of the wire coiling device.

[0004] In some embodiments, a wire coiling device is provided, which includes a housing, a first abutting member, and a second abutting member. A wire is wound inside the housing, and the wire can extend out or retract relative to the housing; the first abutting member and the second abutting member are arranged on the housing, and the first abutting member and the second abutting member can approach or move away from each other; wherein, when the wire is retracted, the first abutting member and the second abutting member respectively abut on opposite sides of the wire; when the wire extends out, a gap is formed between the wire and the first abutting member and / or the second abutting member.

[0005] In some embodiments, when the wire is retracted, there is a first distance between the first abutting member and the second abutting member, and when the wire extends out, there is a second distance between the first abutting member and the second abutting member, and the first distance is less than the second distance.

[0006] In some embodiments, the first abutting member is fixedly arranged on the housing, and the second abutting member can move relative to the housing;

[0007] Or, the second abutting member is fixedly arranged on the housing, and the first abutting member can move relative to the housing;

[0008] Or, both the first abutting member and the second abutting member can move relative to the housing.

[0009] In some embodiments, the wire coiling device further includes an elastic member arranged on the housing, and the elastic member is configured to provide an 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.

[0010] In some embodiments, the first abutment member includes a first friction wheel, and the second abutment member includes a second friction wheel. When the wire is retracted into the housing, the first friction wheel abuts against the wire and rolls relative to the wire, and the second friction wheel abuts against the wire and rolls relative to the wire.

[0011] In some embodiments, when the wire is retracted, the movement directions of the first friction wheel and the second friction wheel are opposite.

[0012] In some embodiments, a track groove is provided on the housing, and the first abutment member can approach or move away from the second abutment member along the track groove; and / or,

[0013] The second abutment member can be moved closer to or farther away from the first abutment member along the track groove.

[0014] In some embodiments, the trajectory groove is arc-shaped, and the center of the arc is located on a side of the trajectory groove away from the wire.

[0015] In some embodiments, the elastic member includes a torsion spring, which includes a main body and a first leg extending from the main body, the main body is connected to the shell, the first leg is connected to the first abutment member and drives the first abutment member to approach the second abutment member when the wire is retracted, and / or the first leg is connected to the second abutment member and drives the second abutment member to approach the first abutment member when the wire is retracted.

[0016] In some embodiments, the main body further extends a second leg, a locking block is fixedly provided on the shell, and the second leg is buckled and connected to the locking block.

[0017] In some embodiments, the elastic member further includes a third pin shaft, the third pin shaft is connected to the shell, and the main body is sleeved on the third pin shaft.

[0018] In some embodiments, the elastic member includes a spring sheet, one end of which is fixed to the shell, and the other end is connected to the first abutment member and / or the second abutment member and drives the first abutment member and the second abutment member to approach each other when the wire is retracted.

[0019] In some embodiments, the elastic member includes a spring and a lever, the lever is hinged to the shell, and one end of the lever is connected to the first abutment member; one end of the spring is connected to the shell, and the other end is connected to the lever to drive the first abutment member to approach the second abutment member when the wire is retracted.

[0020] In some embodiments, the spring and the first abutting member are located on the same side of the hinge position between the lever and the housing, and the spring is in a stretched state during the process of wire retraction;

[0021] Or the spring and the first abutting member are respectively located on both sides of the hinge position between the lever and the housing, and the spring is in a compressed state during the process of wire retraction.

[0022] In some embodiments, a charging device is provided, including the above-mentioned wire winding device, and the wire winding device is used for storing a wire.

[0023] In the wire winding device provided by the embodiments of the present application, since the first abutting member and / or the second abutting member can move away from or close to each other, when the wire is retracted, the first abutting member and the second abutting member respectively abut against opposite sides of the wire, providing a squeezing force on both sides of the wire. When the wire moves relative to the first abutting member and the second abutting member, the first abutting member and the second abutting member can generate a frictional resistance opposite to the movement direction of the wire on the surface of the wire, that is, slowing down the wire retraction speed, and avoiding the wire from swinging irregularly due to too fast retraction speed and hurting the user. When the wire extends, 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 does not contact the wire, which can reduce the frictional resistance of the first abutting member and the second abutting member on the wire and make the wire pull out more smoothly. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 Schematic diagram of the overall structure of the wire winding device in some embodiments of the present application;

[0026] Figure 2 is Figure 1 Partial enlarged view of A in;

[0027] Figure 3 is Figure 1 Exploded view of the wire winding device in the embodiment;

[0028] Figure 4 Schematic diagram of the overall structure of the wire winding device in another embodiment;

[0029] Figure 5 is Figure 4 Partial enlarged view of B in the embodiment;

[0030] Figure 6 is Figure 4 An exploded view of the wire winding device in the embodiment;

[0031] Figure 7 is a schematic diagram of the overall structure of the wire winding device in another embodiment;

[0032] Figure 8 is Figure 7 A partially enlarged schematic view of location C in the embodiment.

[0033] In the above-mentioned drawings:

[0034] 10 - housing, 11 - upper shell, 12 - lower shell, 13 - wire outlet, 14 - track groove, 15 - locking block;

[0035] 20 - wire winding disc, 21 - reset member, 22 - wire;

[0036] 30 - first abutting member, 31 - first friction wheel; 32 - first pin shaft;

[0037] 40 - elastic member, 41 - torsion spring, 411 - main body portion, 412 - first support leg, 413 - second support leg, 42 - elastic sheet, 43 - spring, 44 - lever, 45 - bracket, 46 - third pin shaft;

[0038] 50 - second abutting member, 51 - second friction wheel, 52 - second pin shaft. Detailed implementation manners

[0039] The present application will be further described in detail below in conjunction with the drawings and embodiments. It should be specifically noted that the following embodiments are only used to illustrate the present application, but do not limit the scope of the present application. Similarly, the following embodiments are only partial embodiments of the present application rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present application.

[0040] The terms "first", "second", and "third" in the embodiments of the present application are only for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", and "third" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined. All directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly. The terms "include" and "have" in the embodiments of the present application and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally further include unlisted steps or units, or may optionally further include other steps or components inherent to these processes, methods, products, or devices.

[0041] References to "embodiments" in this document mean that the specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0042] Please refer to Figures 1 to 3 , Figure 1 the overall structural schematic diagram of the wire winding device in some embodiments of the present application, Figure 2 is Figure 1 the partial enlarged schematic diagram at position A in Figure 3 is Figure 1 the exploded view of the wire winding device in the embodiment.

[0043] The present application provides a wire winding device, including a housing 10. An outlet 13 is provided on the housing 10. The housing 10 includes an upper housing 11 and a lower housing 12 that are detachably and fixedly connected. The upper housing 11 and the lower housing 12 enclose an inner cavity. A winding disc 20 is rotatably provided in the inner cavity of the housing 10. The winding disc 20 has a disc structure, but is not limited to this shape. Users can design the shape of the winding disc 20 according to requirements. A wire 22 is wound around the winding disc 20. The winding disc 20 can rotate forward or backward in the housing to extend or retract the wire 22 through the outlet 13 of the housing 10. A reset member 21 is provided between the winding disc 20 and the housing 10. The reset member 21 is used to provide an elastic force opposite to the rotation direction when the winding disc 20 rotates. When the elastic restoring force of the reset member 21 drives the wire 22 to extend under an external force, the wire 22 can be automatically retracted.

[0044] The reset member 21 is a structure familiar to those skilled in the art, such as a volute spring, which will not be elaborated here.

[0045] A first abutting member 30 and a second abutting member 50 are provided on the housing 10. The first abutting member 30 and the second abutting member 50 can move away from or close to each other. In some implementation styles, the first abutting member 30 is configured to be movable, and the second abutting member 50 is configured to be immovable; in some implementation styles, the first abutting member 30 is configured to be immovable, and the second abutting member 50 is configured to be movable; in some implementation styles, both the first abutting member 30 and the second abutting member 50 are movable. In the present application, for the convenience of description, only the implementation style in which the first abutting member 30 is movable and the second abutting member 50 is immovable will be described below.

[0046] When the wire 22 is retracted into the housing 10, there is a first distance between the first abutting member 30 and the second abutting member 50. When the wire 22 extends out of the housing 10, there is a second distance between the first abutting member 30 and the second abutting member 50. The first distance is less than the second distance. Specifically, the first abutting member 30 and the second abutting member 50 can be provided on the upper housing 11. Among them, the first abutting member 30 is movable relative to the upper housing 11, and the second abutting member 50 is fixed relative to the upper housing 11. During the process of the wire 22 being retracted into the housing 10, the first abutting member 30 moves close to the second abutting member 50 until the distance between the first abutting member 30 and the second abutting member 50 is the first distance. At this time, the first abutting member 30 and the second abutting member 50 respectively abut on opposite sides of the wire 22, so that the first abutting member 30 and the second abutting member 50 generate frictional resistance on the wire 22; during the process of the wire 22 extending out, the first abutting member 30 moves away from the second abutting member 50 until the distance between the first abutting member 30 and the second abutting member 50 is the second distance. At this time, a gap is formed between the wire 22 and the first abutting member 30 and / or the second abutting member 50.

[0047] Optionally, the first abutting member 30 can be moved closer to the second abutting member 50 when the wire 22 is retracted into the housing 10 in a manually driven manner. Specifically, a locking structure (not shown in the figure) is connected between the first abutting member 30 and the housing 10. The locking structure can specifically be a buckle, a bolt, or other structures familiar to those skilled in the art that are convenient for disassembly. When the wire 22 is retracted into the housing 10, the user can manually move the first abutting member 30 closer to the second abutting member 50 until the first abutting member 30 and the second abutting member 50 respectively contact the opposite sides of the wire 22, and use the locking structure to lock the position of the first abutting member 30, so as to ensure that when the wire 22 is retracted into the housing 10, 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 extends out of the housing 10, the user can unlock the locking state of the locking structure, move the first abutting member 30 away from the second abutting member 50 to form a gap in the middle, and then the wire 22 is pulled out of the housing 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 frictional resistance received by the wire 22 is small, and the process of extending out of the housing 10 is smoother.

[0048] Optionally, the first abutting member 30 can also automatically move closer to the second abutting member 50 when the wire 22 is retracted into the housing 10. Specifically, the winding device further includes an elastic member 40 provided on the housing 10. The elastic member 40 is configured to provide an 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 closer to the second abutting member 50 during the retraction process of the wire 22. It can be understood that in this embodiment, the elastic member 40 also provides an elastic force to the first abutting member 30 when the wire 22 extends 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 an 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 extends out of the housing 10 along the surface of the first abutting member 30. That is to say, when the wire 22 extends out of the housing 10, only the first abutting member 30 contacts the surface of the wire 22, and the frictional resistance received by the wire 22 is small.

[0049] The above-mentioned winding device can be used in various application scenarios where the wire 22 needs to be decelerated. For example, the winding device can be used to store audio and video signal wires 22, network signal wires 22, and power supply signal wires 22 of power banks, but it is not limited to this. Since the first abutment 30 can be away from or close to the second abutment 50, when the wire 22 is retracted into the housing 10, the first abutment 30 moves close to the second abutment 50 until the first abutment 30 and the second abutment 50 respectively abut on the opposite sides of the wire 22, providing a squeezing force on both sides of the wire 22. When the wire 22 moves relative to the first abutment 30 and the second abutment 50, the first abutment 30 and the second abutment 50 can generate friction resistance on the surface of the wire 22 in the opposite direction of the movement of the wire 22, that is, slow down the winding speed of the wire 22, and prevent the wire 22 from swinging irregularly due to excessive winding speed and injuring the user. When the wire 22 extends out of the shell 10, the first abutment 30 can be away from the second abutment 50 so that at least one of the first abutment 30 and the second abutment 50 does not contact the wire 22. This can reduce the friction resistance of the first abutment 30 and the second abutment 50 to the wire 22, making it smoother to pull the wire 22 out.

[0050] See also Figure 3 In some embodiments, a track groove 14 is provided on the housing 10, and the track groove can be opened at corresponding positions of the upper shell and the lower shell, and the first abutment member can approach or move away from the second abutment member along the track groove. In particular, the track groove 14 can be arc-shaped, and the center of the arc is located on the side of the track groove 14 facing away from the wire 22. The arc-shaped track groove 14 can make the first abutment member 30 move more smoothly along the track groove 14, avoiding the first abutment member 30 from being blocked during the movement, resulting in poor matching effect between the first abutment member 30 and the wire 22.

[0051] In some embodiments, the first abutment member 30 includes a first friction wheel 31 , and the first friction wheel 31 can be in sliding engagement or rolling engagement with the wire 22 .

[0052] In some scenarios, the first friction wheel 31 is slidably connected to the housing 10. Specifically, the first friction wheel 31 is slidably connected to the housing 10 through the first pin 32, the first pin 32 is inserted into the track groove 14 and the first pin 32 slides along the first track groove 14, and the first friction wheel 31 is fixedly connected to the first pin 32, and the first pin 32 is fixedly connected to the elastic member 40. When the wire 22 extends out of the housing 10 and when the wire 22 is retracted into the housing 10, the wire 22 and the first friction wheel 31 are slidably matched, 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.

[0053] In some scenarios, the first friction wheel 31 is in rolling connection with the housing 10. It can be understood that the rolling connection means that it can slide and rotate. Specifically, the first friction wheel 31 is in rolling connection with the housing 10 through the first pin shaft 32. The first pin shaft 32 is inserted into the track groove 14 and the first pin shaft 32 slides along the first track groove 14. Optionally, the first friction wheel 31 is rotatably connected to the first pin shaft 32, and the elastic member 40 is fixedly connected to the first pin shaft 32; optionally, the first pin shaft 32 is fixedly connected to the first friction wheel 31, and the elastic member 40 is rotatably connected to the first pin shaft 32. During the process of the wire 22 extending out of and retracting into the housing 10, the wire 22 rolls and cooperates with the first friction wheel 31. By applying an external force to the wire 22, the wire 22 can generate a rolling friction force in the same direction as the movement direction on the first friction wheel 31 to drive the first friction wheel 31 to rotate, and then the first friction wheel 31 generates a rolling friction force in the opposite direction to the movement direction on the wire 22.

[0054] According to the cooperation relationship between the first friction wheel 31 and the wire 22 described above, the first friction wheel 31 can generate a friction force in the opposite direction to the movement direction of the wire 22 during both the process of the wire 22 extending out of the housing 10 and the process of the wire retracting. Then the first friction wheel 31 can simultaneously slow down the wire 22 when it extends out of the housing 10 and when it retracts into the housing 10. It can be understood that in the implementation mode of the rolling cooperation 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 being stuck when retracting into the housing 10, and at the same time make the movement of the wire 22 smoother when extending out of the housing 10.

[0055] Please continue to refer to Figure 3 , in some embodiments, the second abutting member 50 includes a second friction wheel 51, and the second friction wheel 51 can be in sliding or rolling cooperation with the wire 22.

[0056] In some scenarios, the second friction wheel 51 is disposed at the wire outlet 13 position of the housing 10 and is fixedly connected to the housing 10. When the wire 22 extends out of the housing 10, by applying an external force to the wire 22, the wire 22 is driven to move away from the second friction wheel 51, so that a gap is formed on the side of the wire 22 facing the second friction wheel 51, that is, the wire 22 is not in contact with the second friction wheel 51 during this process. When the wire 22 retracts into the housing 10, the first friction wheel 31 moves in the direction close to the second friction wheel 51, and the wire 22 is pressed tightly against the second friction wheel 51 by the first friction wheel 31. The side of the second friction wheel 51 that cooperates with the wire 22 slides in cooperation with the wire 22, so that the second friction wheel 51 generates a sliding friction force in the opposite direction to the wire retracting direction on the wire 22. That is, the second friction wheel 51 slows down the movement of the wire 22 when the wire 22 retracts into the housing 10.

[0057] In some scenarios, the second friction wheel 51 is disposed at the wire outlet 13 of the housing 10 and is rotatably connected to the housing 10 through the second pin shaft 52. When the wire 22 is retracted into the housing 10, an external force is applied to the wire 22 so that the wire 22 can generate a rolling friction force in the same direction as the wire retraction direction on the second friction wheel 51, thereby driving the second friction wheel 51 to rotate. Then, the second friction wheel 51 generates a rolling friction force on the wire 22 in the direction opposite to the wire retraction direction. That is, the second friction wheel 51 decelerates the movement of the wire 22 when the wire 22 is retracted into the housing 10.

[0058] It can be understood that those skilled in the art can freely choose to combine the cooperation mode between the second friction wheel 51 and the wire 22 and the cooperation mode between the first friction wheel 31 and the wire 22, so as to achieve different deceleration effects when the wire 22 is retracted into the housing 10. For example, the second friction wheel 51 and the first friction wheel 31 respectively roll cooperate with the opposite sides of the wire 22; or the second friction wheel 51 and the first friction wheel 31 respectively slide cooperate with the opposite sides of the wire 22; or one of the second friction wheel 51 and the first friction wheel 31 slides cooperate with the wire 22, and the other rolls cooperate with the wire 22. In this embodiment, when the wire 22 is retracted into the housing 10, the second friction wheel 51 and the first friction wheel 31 are respectively rotatably connected to the wire 22. In this way, when the wire 22 is retracted into the housing 10, the wire 22 generates a rolling friction force in the same direction as the movement direction of the wire 22 on the first friction wheel 31 and the second friction wheel 51, thereby driving the first friction wheel 31 and the second friction wheel 51 to rotate. The rotation directions of the first friction wheel 31 and the second friction wheel 51 are opposite. 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 direction opposite to the movement direction of the wire 22, which can effectively slow down the wire retraction speed of the wire 22 and avoid jamming of the wire 22 during retraction.

[0059] In some embodiments, anti-slip patterns are provided on the first friction wheel 31 and / or the second friction wheel 51. By providing the anti-slip patterns, the roughness of the contact surface between the first friction wheel 31 and the second friction wheel 51 and the wire 22 is increased, thereby increasing the magnitude of the friction force generated on the wire 22 and effectively slowing down the wire retraction speed of the wire 22.

[0060] In some embodiments, the second abutting member 50 can also be a convex structure formed on the housing 10. For example, a convex structure is formed on one side of the wire outlet 13 of the housing 10. The convex structure can specifically be in various shapes such as cylindrical, prismatic, cam-shaped, etc. The first abutting member 30 is abutted against the convex structure through the elastic member 40, and the wire 22 passes through between the first abutting member 30 and the convex structure.

[0061] Optionally, the surface of the convex structure in contact with the wire 22 is an arc surface. From the implementation style in which the second friction wheel 51 is fixedly connected to the housing 10, it can be seen that only a part of the second friction wheel 51 slides in cooperation with the surface of the wire 22, and the part of the second friction wheel 51 that is not in contact with the surface of the wire 22 can be of any shape. Therefore, the part of the structure of the second friction wheel 51 that slides in cooperation with the surface of the wire 22 can also be understood as a convex structure formed on the housing 10.

[0062] Similarly, the first abutting member 30 is not limited to the implementation style of the aforementioned first friction wheel 31. For example, the first abutting member 30 can be a cylinder, a prism, or a cam made of rubber material. The first abutting member 30 can also be integrally formed with the elastic member 40 directly. For example, the first abutting member 30 is a part of the structure formed on the elastic member 40 close to the surface of the wire 22, that is, when the wire 22 is retracted into the housing 10, the elastic member 40 directly abuts against the surface of the wire 22 and applies a squeezing force to the wire 22.

[0063] 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. The first abutting member 30 and the elastic member 40 are also located inside the housing 10. The wire 22 passes through between the first abutting member 30 and the second abutting member 50 and then passes out through the wire outlet 13. The first abutting member 30 and the second abutting member 50 can be on the same side or opposite sides of the wire outlet 13, as long as it can be realized that the first abutting member 30 abuts against 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.

[0064] Please continue to refer to Figure 2 and Figure 3 In some embodiments, the elastic member 40 includes a torsion spring 41. The torsion spring 41 includes a main body portion 411 and a first leg 412 and a second leg 413 extending from the main body portion 411. The first leg 412 is connected to the first abutting member 30 and drives the first abutting member 30 to tightly press on the surface of the first abutting member 30, and the second leg 413 is fixedly connected to the housing 10. In this embodiment, a third pin shaft 46 is installed on the housing 10, the main body portion 411 is sleeved outside the third pin shaft 46, a locking block 15 is fixedly provided on the housing 10, the second leg 413 is U-shaped, and the second leg 413 is snap-connected to the locking block 15. The first leg 412 forms a swing arm structure that rotates around the main body portion 411. 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 tightly press on the surface of the wire 22, and the first leg 412 can drive the first abutting member 30 to approach the second abutting member 50. Two first legs 412 are symmetrically provided, and the ends of the two first legs 412 away from the main body portion 411 are respectively clamped to both ends of the first pin shaft 31.

[0065] Since the torsion spring 41 is prone to fatigue damage due to long-term stress during operation, the disassembly and replacement of the torsion spring 41 are facilitated by the clamping connection between the second leg 413 and the locking block 15 and the clamping connection between the first leg 412 and the first pin shaft 31, ensuring the working performance of the wire winding device in slowing down the wire winding speed of the wire 22 and saving costs.

[0066] In addition, in this embodiment, the second leg 413 of the torsion spring 41 can always maintain the clamped and locked state with the locking block 15 when the wire 22 extends or retracts from the housing 10. In this way, the first abutting member 30 can generate a pressing force on the wire 22 through the torsion spring 41 and thus abut against the surface of the wire 22, and generate a frictional force on the wire 22 when the wire 22 extends or retracts from the housing 10. In some scenarios, the user can also manually release the connection between the second leg 413 and the locking block 15 during wire unwinding, and manually clamp and fix the second leg 413 and the locking block 15 during wire winding. Then, when the wire 22 extends from the housing 10, the first abutting member 30 no longer receives the acting force of the torsion spring 41 to press the wire 22, and the first abutting member 30 can move more freely to the first fitting position and generate a smaller frictional force on the wire 22 when the wire 22 extends from the housing 10, making the wire 22 smoother when pulled out. The first abutting member 30 only presses the wire 22 when the wire 22 retracts into the housing 10, and generates a force opposite to the wire winding direction on the wire 22 together with the second abutting member 50, thereby effectively slowing down the wire winding speed.

[0067] Please refer to Figures 4 to 6 , Figure 4 which is a schematic diagram of the overall structure of the wire winding device in another embodiment, Figure 5 is Figure 4 a partial enlarged schematic diagram of part B in the embodiment, Figure 6 is Figure 4 an exploded view of the wire winding device in the embodiment.

[0068] In some embodiments, the elastic member 40 includes a spring piece 42. One end of the spring piece 42 is fixedly arranged on the housing 10, and the other end is connected to the first abutting member 30 and drives the first abutting member 30 to tightly press on the wire 22. The two ends of the spring piece 42 can be respectively welded and fixed to the housing 10 and the first pin shaft 31, or can be detachably connected and fixed by bolts or other ways familiar to those skilled in the art, so as to facilitate the replacement of the spring piece 42. The spring piece 42 is configured as a cantilever structure extending from the housing 10. The free end of the spring piece 42 is connected to the first abutting member 30, and applies a force to the first abutting member 30 to move it closer to the second abutting member 50, so as to ensure that the first abutting member 30 and the second abutting member 50 abut on the opposite sides of the wire 22 when the wire 22 retracts into the housing 10. The spring piece 42 can be set in an arc shape or any bent shape according to the shape of the housing 10, and no specific limitation is made here.

[0069] Please refer toFigure 7 and Figure 8 , Figure 7 is a schematic diagram of the overall structure of the wire winding device in another embodiment, Figure 8 is Figure 7 a partially enlarged schematic diagram at position C in the embodiment.

[0070] In some embodiments, the elastic member 40 includes a spring 43 and a lever 44. The lever 44 is hinged to the housing 10. One end of the lever 44 is connected to the first abutting member 30. Both ends of the spring 43 are respectively connected to the lever 44 and the housing 10 to drive the first abutting member 30 to tightly press against the surface of the wire 22. Specifically, a bracket 45 is fixedly provided outside the housing 10. The lever 44 is rotatably connected to the bracket 45, that is, the lever 44 is hinged to the housing 10 through the bracket 45.

[0071] Optionally, the spring 43 and the first abutting member 30 are located on the same side of the bracket 45. For example, the spring 43 is located between the bracket 45 and the first abutting member 30. In this embodiment, the spring 43 remains in a stretched state when the wire 22 is retracted into the housing 10. The spring 43 applies a force toward the housing 10 to one end of the lever 44 close to the first abutting member 30, thereby driving the first abutting member 30 to tightly press against the surface of the wire 22. It can be understood that in order to achieve 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.

[0072] Optionally, the spring 43 and the first abutting member 30 are respectively located on opposite sides of the bracket 45. The spring 43 remains in a compressed state when the wire 22 is retracted into the housing 10. The spring 43 applies a force in a direction away from the housing 10 to one end of the lever 44 away from the first abutting member 30, thereby driving the end of the lever 44 connected to the first abutting member 30 to press against the housing 10, and further driving the first abutting member 30 to tightly press against the surface of the wire 22. It can be understood that in order to achieve 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.

[0073] 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 by changing the positions of the first abutting member 30 and the second abutting member 50 so that the second abutting member 50 is connected to the elastic member 40, the second abutting member 50 can approach or move away from the first abutting member 30 under the action of the elastic member 40.

[0074] In combination with the embodiment in which both the first abutting member 30 and the second abutting member 50 are configured to be movable, two elastic members 40 can be provided. The first abutting member 30 and the second abutting member 50 are respectively connected to one of the elastic members 40. The first abutting member 30 and the second abutting member 50 approach or move away from each other under the action of the elastic members 40 respectively.

[0075] In some embodiments, the present application provides a charging device that can be used to charge mobile terminals such as mobile phones and computers. The charging device includes the aforementioned wire winding device, which is used to store a wire, and the wire is a data cable for transmitting power signals.

[0076] The above are only partial embodiments of the present application, and thus do not limit the protection scope of the present application. Any equivalent device or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall similarly be included in the patent protection scope of the present application.

Claims

1. A wire winding device, characterized in that, include: A shell, wherein a wire is wound inside the shell, and the wire can be extended or retracted relative to the shell; A first abutment member and a second abutment member, wherein the first abutment member and the second abutment member are arranged on the housing, and the first abutment member and the second abutment member can be close to or far away from each other; wherein, When the wire is retracted, the first abutment member and the second abutment member abut against opposite sides of the wire respectively; When the wire is extended, a gap is formed between the wire and the first abutment member and / or the second abutment member.

2. The coiling device according to claim 1, characterized in that, When the wire is retracted, there is a first distance between the first abutment member and the second abutment member; when the wire is extended, there is a second distance between the first abutment member and the second abutment member, and the first distance is smaller than the second distance.

3. The winding device according to claim 1, characterized in that, The first abutment member is fixedly arranged on the housing, and the second abutment member can move relative to the housing; Alternatively, the second abutting member is fixedly disposed on the housing, and the first abutting member can move relative to the housing; Alternatively, both the first abutting member and the second abutting member can move relative to the housing.

4. The winding device according to claim 1, characterized in that, The wire winding device further comprises an elastic member disposed on the housing, wherein the elastic member is configured to provide elastic force to the first abutment member and / or the second abutment member so that the first abutment member and the second abutment member are brought close to each other when the wire is retracted.

5. The wire winding device according to claim 1, characterized in that, The first abutment member includes a first friction wheel, and the second abutment member includes a second friction wheel. When the wire is retracted into the housing, the first friction wheel abuts against the wire and can roll relative to the wire, and the second friction wheel abuts against the wire and can roll relative to the wire.

6. The winding device according to claim 5, characterized in that, When the wire is retracted, the movement directions of the first friction wheel and the second friction wheel are opposite.

7. The wire winding device according to any one of claims 1-6, characterized in that, The housing is provided with a track groove, and the first abutment member can approach or move away from the second abutment member along the track groove; and / or, The second abutment member can be moved closer to or farther away from the first abutment member along the track groove.

8. The winding device according to claim 7, characterized in that, The track groove is arc-shaped, and the center of the arc is located on the side of the track groove away from the wire.

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

10. The winding device according to claim 9, characterized in that, The main body also extends outwardly from a second leg, a locking block is fixedly provided on the shell, and the second leg is buckledly connected to the locking block.

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

12. The winding device according to claim 4, characterized in that, The elastic member includes a spring sheet, one end of which is fixed to the housing, and the other end of which is connected to the first abutment member and / or the second abutment member and drives the first abutment member and the second abutment member to approach each other when the wire is retracted.

13. The winding device according to claim 4, characterized in that, The elastic member includes a spring and a lever. The lever is hinged to the housing, and one end of the lever is connected to the first abutting member; one end of the spring is connected to the housing, and the other end is connected to the lever to drive the first abutting member to approach the second abutting member when the wire is retracted.

14. The winding device 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 housing, and the spring is in a stretched state during the retraction of the wire; 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 compressed state during the retraction of the wire.

15. A charging device, characterized in that, It includes a wire winding device according to any one of claims 1-14, and the wire winding device is used for storing a wire.

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