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 winding device comprises a shell, a first abutting part and a second abutting part, a wire is wound in the shell, and the first abutting part and the second abutting part movably abut against the two opposite sides of the wire respectively; in the process of withdrawing the wire rod, the first abutting part and the second abutting part abut against the two opposite sides of the wire rod respectively and provide frictional resistance for the wire rod. According to the wire winding device, the first abutting part and the second abutting part abut against the two sides of the wire rod when the wire rod is retracted into the shell, friction resistance is provided for the wire rod, and the speed reduction effect on the wire rod is achieved; and the first abutting part and the second abutting part can move, so that when the wire rod extends out of the shell, the wire rod can push the first abutting part or the second abutting part to move under the action of external force, and the wire rod is pulled out of the shell from multiple directions, so that the wire rod is pulled more smoothly when the wire rod extends out of the shell, and the flexibility is higher.

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] Currently, ordinary wire coiling devices on the market do not have a deceleration function. When pulling back the wire, the wire winding speed is too fast. Due to the long cable and the influence of heavy objects on the support arm, it will swing rapidly irregularly, which is likely to cause danger of personal injury. At the same time, it will damage the cable 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 problems of too fast wire winding speed and low flexibility of the wire outlet direction of the wire coiling device.

[0004] In some embodiments, a wire coiling device is provided, which includes a housing, a first abutting portion, and a second abutting portion. Among them, a wire is wound inside the housing, and the wire can extend or retract relative to the housing; the first abutting portion and the second abutting portion respectively abut on opposite sides of the wire. The first abutting portion can move away from or close to the second abutting portion along a first direction, and the second abutting portion can move away from or close to the first abutting portion along a second direction. When the wire is retracted, the first abutting portion and the second abutting portion respectively abut on opposite sides of the wire and provide frictional resistance to the wire. During the process of the wire extending, the first abutting portion and the second abutting portion move away from each other to form a gap between the wire and the first abutting portion and / or the second abutting portion.

[0005] In some embodiments, the wire coiling device further includes an elastic member provided on the housing. The elastic member is configured to provide an opposing squeezing force to the first abutting portion and the second abutting portion, so that when the wire is retracted, the first abutting portion and the second abutting portion move closer to each other.

[0006] In some embodiments, the elastic member is respectively connected to the first abutting portion and the second abutting portion.

[0007] In some embodiments, the elastic member includes a first elastic arm and a second elastic arm. Two ends of the first elastic arm are respectively connected to the housing and the first abutting portion, and when the wire is retracted, the first elastic arm drives the first abutting portion to move closer to the first abutting portion; two ends of the second elastic arm are respectively connected to the housing and the second abutting portion, and when the wire is retracted, the second elastic arm drives the second abutting portion to move closer to the first abutting portion.

[0008] In some embodiments, the elastic member further includes a support arm connected to the housing. The first elastic arm and the second elastic arm are formed by bending and extending from two ends of the support arm. The angle between the first elastic arm and the support arm is an acute angle, and the angle between the second elastic arm and the support arm is an acute angle.

[0009] In some embodiments, the support arm is formed with a pressure-bearing section, which is arc-shaped. The center of the arc of the pressure-bearing section is located on the side of the pressure-bearing section away from the first elastic arm and the second elastic arm.

[0010] In some embodiments, the housing is provided with a mounting groove matching the shape of the pressure-bearing section. The pressure-bearing section of the support arm is clamped in the mounting groove, and both ends of the support arm extend from both ends of the mounting groove respectively.

[0011] In some embodiments, the first abutting portion includes a first swing rod movably connected to the housing in a first direction. One end of the first elastic arm away from the support arm abuts against the first swing rod.

[0012] In some embodiments, the first abutting portion further includes a first friction wheel sleeved on the first swing rod and rotatably connected to the first swing rod. The first friction wheel is in rolling cooperation with the surface of the wire.

[0013] In some embodiments, a first limiting groove is formed in the housing in the first direction. The first swing rod passes through the first limiting groove and moves along the first limiting groove.

[0014] In some embodiments, the first limiting groove is arc-shaped. The center of the arc of the first limiting groove is located on the side of the first limiting groove away from the wire.

[0015] In some embodiments, the housing is provided with a first mounting hole. The center of the arc of the first limiting groove is coaxial with the first mounting hole. The first swing rod includes a first rotating end and a first swinging end. The first rotating end passes through the first mounting hole, and the first swinging end passes through the first limiting groove. The first swinging end swings around the first rotating end and moves in the first limiting groove.

[0016] In some embodiments, a charging device is provided, including the above-mentioned wire winding device for storing a wire.

[0017] In the wire winding device provided by the embodiment of the present application, when the wire is retracted into the housing, the first abutting portion and the second abutting portion abut against both sides of the wire, and form a squeezing force on both sides of the wire, so that when the wire is retracted into the housing, the wire moves relative to the first abutting portion and the second abutting portion to form a frictional resistance, which has a decelerating effect on the movement of the wire; and since both the first abutting portion and the second abutting portion can move, when the wire extends out of the housing, the wire can push the first abutting portion or the second abutting portion to move by means of an external force, and be pulled out of the housing in multiple directions, making the wire more smooth and flexible when being pulled out of the housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.

[0019] Figure 1 Schematic diagram of the overall structure of the wire winding device in some embodiments of the present application;

[0020] Figure 2 is Figure 1 Exploded view of the wire winding device in the embodiment;

[0021] Figure 3 is Figure 1 Schematic diagram of the partial structure of the wire winding device in the embodiment;

[0022] Figure 4 is Figure 1 Schematic diagram of the structure of the elastic member in the embodiment;

[0023] Figure 5 is Figure 1 Schematic diagram of the structure of the wire winding device after removing the wire in the embodiment;

[0024] Figure 6 is Figure 5 Enlarged schematic view at B in the figure.

[0025] In the above-mentioned drawings:

[0026] 10 - housing, 11 - first sub - housing, 12 - second sub - housing, 13 - stop portion, 15 - installation groove, 16 - first limiting groove, 17 - first installation hole, 18 - second limiting groove, 19 - second installation hole;

[0027] 20 - first abutting portion, 21 - first swing rod, 211 - first rotating end, 212 - first swinging end, 22 - first friction wheel;

[0028] 30 - Second abutting portion, 31 - Second swing rod, 311 - Second rotating end, 312 - Second swinging end, 32 - Second friction wheel;

[0029] 40 - Elastic member, 41 - Support arm, 411 - Pressure-bearing section, 42 - First elastic arm, 43 - Second elastic arm;

[0030] 50 - Winding disc, 60 - Wire. Specific embodiments

[0031] The present application will be further described in detail below in conjunction with the accompanying 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.

[0032] 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 and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly. The terms "comprising" and "having" and any variations thereof in the embodiments of the present application 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 steps or units not listed, or may optionally further include other steps or components inherent to these processes, methods, products, or devices.

[0033] Referring to

[0034] Please refer to Figure 1 and Figure 2 , Figure 1Schematic diagram of the overall structure of the wire winding device in some embodiments of the present application Figure 2 is Figure 1 Exploded view of the wire winding device in the embodiment

[0035] The present application provides a wire winding device, including a housing 10, a first abutting portion 20 and a second abutting portion 30. An outlet is provided on the housing 10. The housing 10 includes a first sub-housing 11 and a second sub-housing 12 which are detachably and fixedly connected. The first sub-housing 11 and the second sub-housing 12 enclose an inner cavity. A wire winding disc 50 is rotatably provided in the inner cavity of the housing 10. A wire 60 is wound around the wire winding disc 50. The wire winding disc 50 can rotate forward or backward in the housing to extend or retract the wire 60 relative to the housing 10. In this embodiment, the wire winding disc 50 is a disc structure, but is not limited to this shape. The user can design the shape of the wire winding disc 50 according to needs.

[0036] In order to achieve automatic wire retraction, a spring for wire winding (not shown in the figure) is provided between the wire winding disc 50 and the housing 10, which is used to store the power required during the reverse rotation (wire retraction process) when the wire winding disc 50 rotates forward (wire release process), so that the wire winding disc 50 always has a tendency to rotate backward after rotating forward. The spring for wire winding is a structure familiar to those skilled in the art, such as a scroll spring, and will not be elaborated here.

[0037] Please refer to Figure 3 , Figure 3 is Figure 1 Schematic diagram of a partial structure of the wire winding device in the embodiment Figure 3 In [reference figure], the direction A1 is the first direction, and the direction A2 is the second direction.

[0038] When the wire 60 is retracted into the housing 10, the first abutting portion 20 and the second abutting portion 30 respectively abut against opposite sides of the wire 60. Among them, the first abutting portion 20 can move away from or close to the second abutting portion 30 along the first direction, and the second abutting portion 30 can move away from or close to the first abutting portion 20 along the second direction. The first direction and the second direction are directions perpendicular to the axial direction of the wire winding disc 50. When the wire 60 extends out of the housing 10, the first abutting portion 20 and the second abutting portion 30 move away from each other so that a gap is formed between the wire 60 and the first abutting portion 20 and / or the second abutting portion 30.

[0039] With the above solution, the wire winding device provided by the present application can be applied to the storage of audio and video signal wires 22, network signal wires 22, and power signal wires 22 of a power bank, but is not limited thereto. When the wire 60 is retracted into the housing 10, the first abutting portion 20 and the second abutting portion 30 abut against both sides of the wire 60, forming a squeezing force on both sides of the wire 60, so that the wire 60 moves relative to the first abutting portion 20 and the second abutting portion 30 when the wire 60 is retracted into the housing 10 to form a frictional resistance, which has a decelerating effect on the movement of the wire 60.

[0040] When the wire 60 extends out of the housing 10, the wire 60 can be pulled out of the housing 10 in multiple directions. For example, the wire 60 can be pulled out of the housing 10 closely against the first abutting portion 20 and push the first abutting portion 20 to move away from the second abutting portion 30 in the first direction, so that a gap is formed between the side of the wire 60 facing the second abutting portion 30 and the second abutting portion 30, reducing the frictional resistance of the second abutting portion 30 on the surface of the wire 60; or the wire 60 can be pulled out of the housing 10 closely against the second abutting portion 30 and push the second abutting portion 30 to move away from the first abutting portion 20 in the second direction, so that a gap is formed between the side of the wire 60 facing the first abutting portion 20 and the first abutting portion 20, reducing the frictional resistance of the first abutting portion 20 on the surface of the wire 60; or both sides of the wire 60 can be closely attached to the first abutting portion 20 and the second abutting portion 30 respectively and be pulled out of the housing 10 between the two.

[0041] In some embodiments, the first abutting portion 20 and the second abutting portion 30 can be moved closer to each other manually when the wire 60 is retracted into the housing 10. Exemplarily, locking structures (not shown in the figure) are connected between the first abutting portion 20 and the second abutting portion 30 and the housing 10 respectively. The locking structures can specifically be structures familiar to those skilled in the art such as buckles and bolts that are easy to disassemble. When the wire 60 is retracted into the housing 10, the user can manually move the first abutting portion 20 and the second abutting portion 30 closer to each other until the first abutting portion 20 and the second abutting portion 30 are in contact with the opposite sides of the wire 60 respectively, and use the locking structure to lock the positions of the first abutting portion 20 and the second abutting portion 30, so as to ensure that frictional resistance is generated between the opposite sides of the wire 60 and the first abutting portion 20 and the second abutting portion 30 respectively when the wire 60 is retracted into the housing 10. When the wire 60 extends out of the housing 10, the user can unlock the locking state of the locking structure, move the first abutting portion 20 and the second abutting portion 30 away from each other and form a gap in the middle, then the wire 60 can be pulled out of the housing 10 through the gap between the first abutting portion 20 and the second abutting portion 30, the surface of the wire 60 does not contact the first abutting portion 20 and / or the second abutting portion 30, and the frictional resistance received by the wire 60 is small, and the process of extending out of the housing 10 is smoother.

[0042] In some embodiments, the first abutting portion 20 and the second abutting portion 30 can also automatically move closer to each other when the wire 60 is retracted into the housing 10. Exemplarily, the wire winding device further includes an elastic member 40 disposed on the housing 10. The elastic member 40 is configured to provide an opposing squeezing force to the first abutting portion 20 and the second abutting portion 30 so that the first abutting portion 20 and the second abutting portion 30 move closer to each other during the wire retraction process. That is, the first abutting portion 20 moves closer to the second abutting portion 30 along the first direction, and the second abutting portion 30 moves closer to the first abutting portion 20 along the second direction. It can be understood that in this embodiment, when the wire 60 extends out of the housing 10, the elastic member 40 also generates an opposing squeezing force on the first abutting portion 20 and the second abutting portion 30. The user drives the first abutting portion 20 or the second abutting portion 30 to move against the squeezing force of the elastic member 40 by applying an external force to the wire 60. Thanks to the fact that both the first abutting portion 20 and the second abutting portion 30 can move, when the user pulls the wire 60 from multiple directions, the smoothness of the wire 60 can be ensured.

[0043] When the wire 60 is retracted into the housing 10 in the wire winding device provided in this embodiment, the elastic member 40 forms an opposing squeezing force on the first abutting portion 20 and the second abutting portion 30, so that the first abutting portion 20 and the second abutting portion 30 can automatically reset and abut against both sides of the wire 60 after losing other external forces, and form a squeezing force on both sides of the wire 60. Thus, when the wire 60 is retracted into the housing 10, the wire 60 moves relative to the first abutting portion 20 and the second abutting portion 30 to form a frictional resistance, which has a decelerating effect on the movement of the wire 60. By providing the elastic member 40, it is not necessary for the user to manually move the first abutting portion 20 and the second abutting portion 30, and the operation is more convenient.

[0044] There can be various implementation styles of the elastic member 40. For example, in some embodiments, the elastic member 40 can be a torsion spring (not shown in the figure). There can be two torsion springs. One is connected to the first abutting portion 20, and the other is connected to the second abutting portion 30. The two torsion springs respectively transmit torques through the housing 10 and form an opposing squeezing force on the first abutting portion 20 and the second abutting portion 30, so that the first abutting portion 20 and the second abutting portion 30 always have a tendency to move closer to each other. The specific structure of the torsion spring is a structure familiar to those skilled in the art and will not be elaborated here.

[0045] Please refer to Figure 4 , Figure 4 is Figure 1Schematic structural diagram of the elastic member 40 in the embodiment. In some embodiments, the elastic member 40 is in the form of a shrapnel. The elastic member 40 includes a first elastic arm 42 and a second elastic arm 43. Two ends of the first elastic arm 42 are respectively connected to the housing 10 and the first abutting portion 20. When the wire 60 is retracted, the first elastic arm 42 drives the first abutting portion 20 to move closer to the first abutting portion 20; two ends of the second elastic arm 43 are respectively connected to the housing 10 and the second abutting portion 30. When the wire 60 is retracted, the second elastic arm 43 drives the second abutting portion 30 to move closer to the first abutting portion 20. The shapes of the first elastic arm 42 and the second elastic arm 43 can be arc-shaped, linear, etc. At the same time, the positions of the first elastic arm 42 and the second elastic arm 43 can be set inside or outside the housing 10, as long as they can respectively drive the first abutting portion 20 and the second abutting portion 30 to move closer to each other, and no specific limitation is made here.

[0046] In some embodiments, the elastic member 40 further includes a support arm 41. The support arm 41 is connected to the housing 10. The first elastic arm 42 and the second elastic arm 43 are formed by bending and extending from two ends of the support arm 41. The angle between the first elastic arm 42 and the support arm 41 is an acute angle, and the angle between the second elastic arm 43 and the support arm 41 is an acute angle, so that the distance between the first elastic arm 42 and the second elastic arm 43 gradually decreases along the direction away from the support arm 41. One end of the first elastic arm 42 away from the support arm 41 is connected to the first abutting portion 20, and one end of the second elastic arm 43 away from the support arm 41 is connected to the second abutting portion 30. That is, the elastic member 40 is generally in a wedge-shaped structure with a wide bottom and a narrow top, so that the elastic member 40 can concentrate a large elastic force at the connection positions of the first elastic arm 42 and the first abutting portion 20 and the connection positions of the second elastic arm 43 and the second abutting portion 30, and the support arm 41 provides a stable supporting force for the first elastic arm 42 and the second elastic arm 43.

[0047] Please refer to Figure 5 and Figure 6 , Figure 5 is Figure 1 Schematic structural diagram of the wire winding device after removing the wire in the embodiment, Figure 6 is Figure 5 The enlarged schematic diagram at position B in

[0048] Optionally, the support arm 41 is formed with a pressure-bearing section 411. The pressure-bearing section 411 is arc-shaped, and the center of the circle of the pressure-bearing section 411 is located on the side of the pressure-bearing section 411 away from the first elastic arm 42 and the second elastic arm 43. By providing the arc-shaped pressure-bearing section 411, the bending elasticity of the first elastic arm 42 and the second elastic arm 43 can be enhanced, and the risk of excessive fatigue or fracture of the support arm 41 of the elastic member 40 can be reduced, so that the first elastic arm 42 and the second elastic arm 43 of the elastic member 40 can quickly return to their initial positions after being stressed.

[0049] Optionally, an installation groove 15 matching the shape of the pressure-bearing section 411 is provided on the housing 10. The pressure-bearing section 411 of the support arm 41 is clamped in the installation groove 15, and both ends of the support arm 41 extend from both ends of the installation groove 15 respectively. Specifically, a stop portion 13 is provided on the housing 10. The installation groove 15 is a through groove penetrating the stop portion 13 along the extension direction of the pressure-bearing portion. The side wall of the installation groove 15 limits the circumferential side of the support arm 41 to prevent the support arm 41 from detaching from the installation groove 15. The stop portion 13 can be a snap member detachably connected to the housing 10. The installation groove 15 is formed on the side of the stop portion 13 facing the housing 10. The elastic member 40 can be installed in the installation groove 15, and then the stop portion 13 is fixedly connected to the housing 10 so that the elastic member 40 is clamped between the stop portion 13 and the housing 10, preventing the elastic member 40 from falling off and facilitating assembly. It can be understood that when the pressure-bearing section 411 of the elastic member 40 is directly fixedly connected to the housing 10, such as by welding, the first elastic arm 42 and the second elastic arm 43 deform relatively independently, and concentrated stress is likely to be generated at the welding position of the elastic member 40, resulting in fatigue fracture at the welding position. In this embodiment, by clamping the pressure-bearing section 411 in the installation groove 15, when any one of the first elastic arm 42 or the second elastic arm 43 is deformed by an external force, the torsion can be transmitted to the other through the pressure-bearing section 411, enabling the first elastic arm 42 and the second elastic arm 43 to deform synergistically. The pressure-bearing section 411 has an arc transition to avoid generating concentrated stress and reduce the risk of fatigue fracture of the elastic member 40. Further, the first elastic arm 42 and the second elastic arm 43 are symmetrically arranged at both ends of the support arm 41, and the pressure-bearing section 411 is located in the middle of the support arm 41, enabling the first elastic arm 42 and the second elastic arm 43 to deform uniformly and symmetrically.

[0050] Please refer to Figure 6 , in some embodiments, the first abutting portion 20 includes a first swing rod 21. The first swing rod 21 is movably connected to the housing 10 along a first direction. Specifically, a first limiting groove 16 is formed on the housing 10 along the first direction. The first swing rod 21 passes through the first limiting groove 16 and moves along the first limiting groove 16. The first swing rod 21 can directly contact the surface of the wire 60. The first swing rod 21 is fixedly connected to the first elastic arm 42. When the wire 60 is in close contact with the first swing rod 21 and extends out of or retracts into the housing 10 relative to the first swing rod 21, the contact surface between the first swing rod 21 and the wire 60 provides a sliding friction force opposite to the movement direction of the wire 60, thereby decelerating the movement of the wire 60.

[0051] Similarly, the second abutting portion 30 includes a second swing rod 31. The second swing rod 31 is movably connected to the housing 10 along the second direction. Specifically, a second limiting groove 18 is formed in the housing 10 along the second direction. The second swing rod 31 is inserted into the second limiting groove 18 and moves along the second limiting groove 18. The second swing rod 31 can directly slide on the surface of the wire 60.

[0052] The first limiting groove 16 and the second limiting groove 18 can limit the movement directions of the first swing rod 21 and the second swing rod 31, so that the first swing rod 21 and the second swing rod 31 approach or move away from each other along a fixed track. At the same time, the first limiting groove 16 can limit the extreme position of the movement of the first swing rod 21, thereby limiting the deformation amount of the first elastic arm 42 in the elastic member 40. The second limiting groove 18 can limit the extreme position of the movement of the second swing rod 31, thereby limiting the deformation amount of the second elastic arm 43, and avoiding fatigue fracture caused by excessive deformation of the elastic member 40.

[0053] Please continue to refer to Figure 6 , in some embodiments, the first abutting portion 20 may further include a first friction wheel 22. The first friction wheel 22 is sleeved on the first swing rod 21, and the first friction wheel 22 is rotatably connected to the first swing rod 21. The wire 60 can extend out of or retract into the housing 10 closely attached to the first friction wheel 22. It can be understood that when the wire 60 moves closely attached to the first friction wheel 22, a rolling friction force in the same direction as the movement direction of the wire 60 can be generated on the first friction wheel 22, thereby driving the first friction wheel 22 to rotate around the first swing rod 21. Then, the first friction wheel 22 generates a rolling friction force on the wire 60 in the direction opposite to the movement direction of the wire 60, thereby achieving a deceleration effect on the movement of the wire 60.

[0054] Similarly, the second abutting portion 30 may further include a second friction wheel 32. The second friction wheel 32 is sleeved on the second swing rod 31, and the second friction wheel 32 is rotatably connected to the second swing rod 31. The second friction wheel 32 is in rolling cooperation with the surface of the wire 60.

[0055] By providing the first friction wheel 22 and the second friction wheel 32, the wire 60 is in rolling cooperation with the first abutting portion 20 and the second abutting portion 30, achieving a certain deceleration effect and avoiding jamming of the wire 60 when it retracts into the housing 10. Anti-slip patterns can be provided on the surfaces of the first friction wheel 22 and the second friction wheel 32, so as to enhance the roughness of the contact surfaces between the first friction wheel 22 and the second friction wheel 32 and the wire 60, thereby increasing the frictional resistance to the wire 60 when the wire 60 retracts into the housing 10 and improving the deceleration effect.

[0056] When the first abutting portion 20 adopts the implementation style of the first swing rod 21 and the first friction wheel 22, combined with the implementation style of manual drive, a plurality of first pin holes (not shown in the figure) are provided on the housing 10 along the first direction. The first friction wheel 22 is connected to the first swing rod 21, and the first swing rod 21 is inserted into any one of the first pin holes. The first swing rod 21 can be inserted into different first pin holes to achieve movement in the first direction. Similarly, a plurality of second pin holes (not shown in the figure) are provided on the housing 10 along the second direction. The second friction wheel 32 is connected to the second swing rod 31, and the second swing rod 31 is inserted into any one of the second pin holes. The second swing rod 31 can be inserted into different second pin holes to achieve movement in the second direction.

[0057] Of course, the first abutting portion 20 and the second abutting portion 30 can also adopt other structural forms. For example, the first abutting portion 20 and the second abutting portion 30 can be made of a rubber material in the shape of a cylinder, a prism, or a cam, etc. The first abutting portion 20 can also be directly integrally formed with the first elastic arm 42. For example, the first abutting portion 20 is a partial structure formed at one end of the first elastic arm 42 away from the support arm 41. That is to say, when the wire 60 is retracted into the housing 10, the end of the first elastic arm 42 away from the support arm 41 directly abuts against the surface of the wire 60 and applies an extrusion force to the wire 60.

[0058] In some embodiments, the first limiting groove 16 is arc-shaped, and the center of the circle of the first limiting groove 16 is located on the side of the first limiting groove 16 facing away from the wire 60. The arc-shaped first limiting groove 16 can make the first swing rod 21 move more smoothly along the first limiting groove 16, avoiding the first swing rod 21 being blocked during the movement, resulting in a poor cooperation effect with the wire 60.

[0059] Optionally, there are two first limiting grooves 16, which are respectively opened at the relative positions of the first sub-shell 11 and the second sub-shell 12. The first swing rod 21 is cylindrical, and the first swing rod 21 passes through the two first limiting grooves 16. The two ends of the first swing rod 21 can be limited by nuts to prevent the first swing rod 21 from falling out of the first limiting groove 16.

[0060] Please combine Figure 2 and Figure 6, optionally, the first limiting groove 16 is provided on the second sub-shell 12, the first sub-shell 11 is provided with a first mounting hole 17, and the center of the first limiting groove 16 is coaxial with the first mounting hole 17; the first swing rod 21 includes a first rotating end 211 and a first swinging end 212, the first rotating end 211 is inserted through the first mounting hole 17, the first swinging end 212 is inserted through the first limiting groove 16, and the first swinging end 212 swings around the first rotating end 211 and moves within the first limiting groove 16. The elastic member 40 is provided on the second sub-shell 12 and connected to the first swinging end 212. Combining with the implementation mode in which the first friction wheel 22 is rotatably provided on the first swing rod 21, the first friction wheel 22 is rotatably connected to the first swinging end 212 of the first swing rod 21, the axial length of the first friction wheel 22 is adapted to the distance between the first sub-shell 11 and the second sub-shell 12, and the diameter of the first friction wheel 22 is greater than the width of the first limiting groove 16 to prevent the first friction wheel 22 from disengaging from the first limiting groove 16. Of course, the positions of the first mounting hole 17 and the first limiting groove 16 can be interchanged, and the two ends of the first swing rod 21 are limited by the first mounting hole 17 and the first limiting groove 16 at the same time to ensure the smooth movement of the first swing rod 21. During assembly, only the first rotating end 211 needs to be inserted into the first mounting hole 17 of the second sub-shell 12, the first friction wheel 22 is sleeved outside the first swinging end 212, and then the first sub-shell 11 and the second sub-shell 12 are covered and fixed so that the first swinging end 212 passes through the first limiting groove 16, and the assembly process is simple.

[0061] Similarly, the second limiting groove 18 is arc-shaped, and the center of the second limiting groove 18 is located on the side of the second limiting groove 18 away from the wire 60. The second limiting groove 18 is provided on the second sub-shell 12, the first sub-shell 11 is provided with a second mounting hole 19, and the center of the second limiting groove 18 is coaxial with the second mounting hole 19; the second swing rod 31 includes a second rotating end 311 and a second swinging end 312, the second rotating end 311 is inserted through the second mounting hole 19, the second swinging end 312 is inserted through the second limiting groove 18, and the second swinging end 312 swings around the second rotating end 311 and moves within the second limiting groove 18.

[0062] Please continue to refer to Figure 6, in some embodiments, one end of the first elastic arm 42 away from the support arm 41 abuts against the first swing rod 21. The first swing rod 21 can slide relative to the first elastic arm 42 during the movement along the first direction. Compared with the way that the first swing rod 21 is fixedly connected to the first elastic arm 42, the first elastic arm 42 will not generate torsion on the first swing rod 21, making the first swing rod 21 move more smoothly along the first direction. At the same time, it effectively avoids the defect that the end of the connection between the first elastic arm 42 and the first swing rod 21 generates a large torque, causing the first elastic arm 42 to be over-fatigued or broken. Similarly, one end of the second elastic arm 43 away from the support arm 41 abuts against the second swing rod 31. Specifically, the first swing end 212 of the first swing rod 21 and the second swing end 312 of the second swing rod 31 are respectively located on the opposite sides of the first elastic arm 42 and the second elastic arm 43. In this way, the first swing end 212 and the second swing end 312 can be subjected to the squeezing forces of the first elastic arm 42 and the second elastic arm 43 towards each other, so that the first swing end 212 and the second swing end 312 approach each other.

[0063] In some embodiments, the present application provides a charging device, which can be used to charge mobile terminals such as mobile phones and computers. The charging device includes the aforementioned wire winding device, and the wire winding device is used to store the wire 60, and the wire 60 is a data cable for transmitting power signals.

[0064] The above are only some 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 be similarly included in the patent protection scope of the present application.

Claims

1. A wire winding device, characterized in that, include: A shell having wires wound therein, wherein the wires can be extended or retracted relative to the shell; A first abutting portion and a second abutting portion, the two portions abut against opposite sides of the wire respectively, the first abutting portion can move away from or closer to the second abutting portion along a first direction, and the second abutting portion can move away from or closer to the first abutting portion along a second direction; When the wire is retracted, the first abutting portion and the second abutting portion respectively abut against opposite sides of the wire and provide friction resistance to the wire; When the wire is extended, the first abutting portion and the second abutting portion move away from each other to form a gap between the wire and the first abutting portion and / or the second abutting portion.

2. The winding device according to claim 1, wherein The wire winding device further includes an elastic member, which is configured to provide a pressing force towards the first abutting portion and the second abutting portion, so that when the wire is retracted, the first abutting portion and the second abutting portion move towards each other.

3. The winding device according to claim 2, wherein The elastic member is disposed on the housing, and the elastic member is respectively connected to the first abutting portion and the second abutting portion.

4. The coiling device according to claim 2 or 3, characterized in that, The elastic member comprises: a first elastic arm, two ends of which are respectively connected to the housing and the first abutting portion, and when the wire is retracted, the first elastic arm drives the first abutting portion to approach the second abutting portion; The second elastic arm has two ends connected to the housing and the second abutting portion respectively. When the wire is retracted, the second elastic arm drives the second abutting portion to approach the first abutting portion.

5. The winding device according to claim 4, characterized in that, The elastic member also includes a support arm, which is connected to the shell. The first elastic arm and the second elastic arm are formed by bending and extending the two ends of the support arm. The angle between the first elastic arm and the support arm is an acute angle, and the angle between the second elastic arm and the support arm is an acute angle.

6. The coiling device according to claim 5, characterized in that, The support arm is formed with a pressure-bearing section, which is arc-shaped, and the center of the pressure-bearing section is located on a side of the pressure-bearing section away from the first elastic arm and the second elastic arm.

7. The winding device according to claim 6, characterized in that, The shell is provided with a mounting groove matching the shape of the pressure-bearing section, the pressure-bearing section of the support arm is clamped in the mounting groove and two ends of the support arm extend from two ends of the mounting groove respectively.

8. The coiling device according to claim 5, characterized in that, The first abutting portion includes a first swing rod, the first swing rod is movably connected to the housing along a first direction, and one end of the first elastic arm away from the supporting arm abuts against the first swing rod.

9. The winding device according to claim 8, characterized in that, The first abutting portion further includes a first friction wheel, which is sleeved on the first swing rod and rotatably connected to the first swing rod, and the first friction wheel is in rolling cooperation with the surface of the wire.

10. The winding device according to claim 8, characterized in that, The housing is provided with a first limiting groove along a first direction, and the first swing rod is inserted into the first limiting groove and moves along the first limiting groove.

11. The winding device according to claim 10, characterized in that, The first limiting groove is arc-shaped, and the center of the first limiting groove is located on a side of the first limiting groove away from the wire.

12. The winding device according to claim 10, characterized in that, The housing is provided with a first mounting hole, and the center of the first limiting groove is coaxial with the first mounting hole; the first swing rod includes a first rotating end and a first swinging end, the first rotating end is inserted through the first mounting hole, the first swinging end is inserted through the first limiting groove, and the first swinging end swings around the first rotating end and moves within the first limiting groove.

13. A charging device, characterized in that, It includes a wire winding device according to any one of claims 1-12, and the wire winding device is used for storing wire materials.

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