Cable winding device

Abstract

This invention provides a cable winding device that prevents cracks from occurring at the connection point between the connector and the cable due to torsional forces, thereby ensuring the reliability of the cable winding device for long-term use. [Solution] The cable winding device includes a case, a housing 2 provided inside the case, a cable winding reel 3 rotatably provided inside the housing for winding the cable 7, and a guide portion provided in the housing that guides the cable to be divided into a cable pull-out segment 72 extending outside the case and a cable winding segment 73, the cable pull-out segment and the cable winding segment having a first angle, and during the cable winding process, the guide portion is always pressed against the cable so that the cable connector 71 returns to the correct position under the action of the tension of the cable itself and the winding force of the cable winding reel.

Description

Technical Field

[0001] This application relates to the technical field of cable storage devices, and in particular to cable winding devices.

Background Art

[0002] Cables such as power cables, data cables, charging cables, and headset cables of electronic products often have an elongated structure. These elongated cables are prone to entanglement and knotting, so when in use, it takes time to organize the messy cables, which brings inconvenience to users.

[0003] In related technologies, conventional cable winding devices can wind and store cables. However, due to the limitation of the appearance shape, it often happens that the direction of the cable connector of the cable winding device in the current market does not match the cable pulling direction. After the cable is pulled out, there may be torsion, and in the storage process, the cable winding device cannot adjust the winding direction of the cable, so the connector cannot return to the correct position, the connector is twisted with respect to the cable, and the connection point between the connector and the cable is easily cracked under the torsional force.

Summary of the Invention

[0004] This application provides a cable winding device that solves the technical problem that in existing cable winding devices, the cable connector cannot be returned to the correct position, and the connection point between the connector and the cable is easily cracked under the torsional force.

[0005] In a first aspect, this application provides a cable winding device. The cable winding device includes a case, a housing provided in the case, a cable winding reel that winds the cable and is rotatably provided in the housing, The housing includes a guide portion that guides the cable to divide it into a cable pull-out segment extending outside the case and a cable wind-up segment, and the cable pull-out segment and the cable wind-up segment have a first angle between them. During the cable winding process, the guide portion is constantly pressed against the cable, so that the cable connector returns to the correct position under the action of the tension of the cable itself and the winding force of the cable winding reel.

[0006] In one possible embodiment, the housing includes a first wall surface and a second wall surface that are opposite to each other in the height direction of the housing, The guide portion includes a rotating shaft having a first end and a second end provided opposite to each other in the axial direction of itself, the rotating shaft having the first end rotatably connected to the first wall surface and / or the second end rotatably connected to the second wall surface.

[0007] In one possible embodiment, the housing is provided with a second outlet for the cable pull-out segment to pass through, the pivot shaft is provided adjacent to the second outlet, the housing includes a third wall and a fourth wall provided opposite each other in the width direction of the housing, and the second outlet is formed by being surrounded by the first wall, the third wall, the second wall and the fourth wall.

[0008] In one possible embodiment, the rotating shaft is provided at the second exit, and a first passage is formed between the outer circumference of the rotating shaft and the third wall surface for the cable pull-out segment to pass through. Alternatively, the rotating shaft is provided at the second outlet, and a second passage is formed between the outer circumference of the rotating shaft and the fourth wall surface for the cable exit segment to pass through.

[0009] In one possible embodiment, the case is provided with a first outlet and a storage groove for housing the connector of the cable, the first outlet communicating with the storage groove, the cable pull-out segment extending from the first outlet out of the case, and the storage groove having a fifth wall surface that is at least partially in contact with the outer circumference of the connector of the cable.

[0010] In one possible embodiment, the case is provided with a guide groove for guiding the connector of the cable, the guide groove having a guide slope connected to the fifth wall and / or the guide groove having a guide curved surface connected to the fifth wall.

[0011] In one possible embodiment, the housing includes a base and a top cover, the top cover being fitted over the base, a first housing cavity being formed between the top cover and the base, and the cable winding reel being provided within the first housing cavity. The cable winding reel includes a fixed shaft, a first reel body, and a second reel body, the first reel body and the second reel body being arranged parallel to each other, and a cable winding space defined between them. The fixed shaft has a first end connected to the first reel body, a second end that passes through the second reel body and is rotatably connected to the base, and one end that is spaced away from the connector of the cable is connected to the fixed shaft.

[0012] In one possible embodiment, the device includes a coil spring, the first end of which is connected to the cable winding reel and the second end of which is connected to the housing.

[0013] In one possible embodiment, the outer wall of the top cover is provided with a projection, and the projection and the outer wall of the top cover define a second housing cavity, and the coil spring is provided within the second housing cavity. The top cover is provided with a first engagement portion, and the first end of the coil spring is connected to the first engagement portion. A second engaging portion is provided on the side of the first reel body facing away from the second reel body. The second engaging portion is provided coaxially with the fixed shaft and passes through the top cover to connect to the second end of the coil spring.

[0014] In one possible embodiment, a first position limiting portion, a second position limiting portion, and a third position limiting portion are provided on the side of the first reel body facing away from the second reel body, and the first position limiting portion, the second position limiting portion, and the third position limiting portion are provided in order from the center outward of the first reel body. A cable winding groove is formed between the first position limiting portion and the second position limiting portion, and a cable pull-out groove is formed between the second position limiting portion and the third position limiting portion. A stopper member is rotatably provided on the inner wall of the top cover, which is pivotable relative to the cable winding reel when the cable winding reel is driven, and the stopper member is provided with a ball that is slidable on the cable winding groove or the cable pulling groove so that the cable winding reel is in a cable winding state or a cable pulling state.

[0015] The above-described technical means according to the embodiment of the present application has the following advantages compared to the prior art.

[0016] In the cable winding device according to the embodiment of the present invention, when a cable is pulled out, if one end of the cable that is separated from the cable winding reel is subjected to an external force, the portion of the cable housed within the housing rotates along the first direction, the cable is pulled out under the action of the external force, the cable pull-out segment of the cable becomes longer and the cable winding segment of the cable becomes shorter and shorter. When the cable is wound up, the cable winding reel rotates along the direction opposite to the first direction, causing the cable to rotate synchronously along the direction opposite to the first direction under the action of the winding force of the cable winding reel, and is quickly wound onto the cable winding reel, thereby causing the cable pull-out segment of the cable to pass through the guide under the action of the guide and change direction, after which the cable winding segment of the cable is wound onto the cable winding reel. During the cable winding process, the guide section is always in contact with the cable, and the cable pull-out segment and the cable winding segment have a first angle. Therefore, the case restricts the direction of movement of the cable pull-out segment, and the cable winding reel restricts the direction of movement of the cable winding segment. The guide section can always provide pressure to the cable. Thus, under the action of the pressure from the guide section, the cable has tension within itself and under the action of the winding force of the cable winding reel, it has a constant winding speed. Under the action of the tension of the cable itself and the winding force of the cable winding reel, the cable connector tends to return to a state where no twisting occurs relative to the cable. This ultimately returns it to the correct position, further preventing cracks from occurring at the connection point between the connector and the cable due to torsional force, and ensuring the reliability of the cable winding device for long-term use.

[0017] The drawings herein are incorporated into the specification and constitute part of this specification, illustrating embodiments conforming to the present application, and together with the specification, they illustrate the principles of the present application.

[0018] To more clearly explain the technical means in the embodiments of the present application or the prior art, the drawings necessary for the description of the embodiments or the prior art will be briefly described below. Obviously, those skilled in the art can obtain other drawings based on these drawings without creative labor.

[0019] One or more embodiments are exemplarily illustrated by the figures in their corresponding drawings. These exemplary descriptions do not limit the embodiments. Elements having the same reference numerals in the drawings represent similar elements. Unless otherwise specified, the figures in the drawings do not constitute proportional limitations.

Brief Description of the Drawings

[0020] [Figure 1] It is a schematic structural diagram of a cable winding device according to an embodiment of the present application. [Figure 2] It is a cross-sectional view of the cable winding device shown in FIG. 1. [Figure 3] It is a perspective view of the housing and the guide part of the cable winding device shown in FIG. 1. [Figure 4] It is an enlarged view of part A in FIG. 3. [Figure 5] It is a perspective view of the case of the cable winding device shown in FIG. 1. [Figure 6] It is a cross-sectional view of the case of the cable winding device shown in FIG. 5. [Figure 7] It is a perspective view of a cable winding device according to an embodiment of the present application, without the case shown. [Figure 8] It is an exploded view of the structure of the cable winding device shown in FIG. 7. [Figure 9] It is a schematic structural diagram of the cable winding reel of the cable winding device shown in FIG. 8. [Figure 10] It is a top view of the cable winding device shown in FIG. 7, without the top cover shown. [Figure 11] It is a top view of the cable winding reel shown in FIG. 9. [Figure 12]Figure 8 is a bottom view of the top cover of the cable winding device. [Figure 13] Figure 11 shows a schematic diagram illustrating the operating state of the cable winding reel. [Figure 14] Figure 11 shows a schematic diagram 2 illustrating the operating state of the cable winding reel. [Modes for carrying out the invention]

[0021] To further clarify the purpose, technical means, and advantages of the embodiments of this application, the technical means of the embodiments of this application will be described clearly and completely below with reference to the drawings of the embodiments, and it is clear that the embodiments described are some, but not all, embodiments of this application. All other embodiments that a person skilled in the art could obtain without creative effort based on the embodiments of this application are all included within the scope of protection of this application.

[0022] The following disclosure provides many different embodiments or examples to realize different structures of the present application. For the sake of simplicity of the disclosure, the components and installations of specific examples are described below. Naturally, these are illustrative only and not intended to limit the present application. Furthermore, the present application may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity and does not in itself indicate relationships between the various embodiments and / or installations considered.

[0023] For the sake of clarity, spatially relative terms are used herein to describe the relative position or motion of one element or feature in a figure relative to another element or feature, such as “inside,” “outside,” “inside,” “outside,” “down,” “downward,” “up,” “above,” “front,” and “back.” Such spatially relative terms include different orientations of the device in use or operation, in addition to the orientations described in the figure. For example, if the device in the figure undergoes a reversal of position, a change in orientation, or a change in motion, these orientation indications will change accordingly, and an element that is “below another element or feature” or “below another element or feature” will subsequently be oriented “above another element or feature” or “above another element or feature.” Thus, the exemplary term “below…” may include the upward and downward orientations. The device may be oriented in other orientations (rotated 90 degrees or in other directions), and the spatially relative relationship descriptions used herein can be interpreted accordingly.

[0024] In related technologies, conventional cable winding devices can wind and store cables, but due to limitations in external shape, the orientation of the cable connectors on cable winding devices currently on the market often does not match the direction in which the cable is pulled out. This can cause twisting after the cable is pulled out. In the storage process, the cable winding device cannot adjust the direction in which the cable is wound, so the connector cannot return to the correct position. The connector twists relative to the cable, and the connection point between the connector and the cable is subjected to torsional force, making it easy for cracks to occur.

[0025] Some cable winding devices are equipped with a position correction structure, for example, in which a magnet or iron block is enclosed in the connector, and a magnet must also be assembled or attached to the corresponding position in the housing, using the magnetic attraction force of the magnet to attract the connector to the correct position. Such a structure increases design costs and, after multiple uses, the magnet or iron block can easily detach from the connector, impairing the position correction function.

[0026] Existing cable winding devices have a technical problem in that they cannot return the cable connector to its initial state, and the connection point between the connector and the cable is subjected to torsional force, easily causing cracks. To solve this problem, this invention provides a cable winding device in which, during the cable winding process, the connector returns to the correct position under the action of the tension of the cable itself and the winding force of the cable winding reel, thereby avoiding the occurrence of cracks at the connection point between the connector and the cable due to torsional force, and ensuring the reliability of the cable winding device for long-term use.

[0027] Figures 1 and 2 show a cable winding device according to the present application, which includes a case 1, a housing 2, a cable winding reel 3, and a guide section 4. The housing 2 is provided inside the case 1, the cable winding reel 3 is rotatably provided inside the housing 2 for winding the cable 7, and the guide section 4 is provided on the housing 2 and guides the cable 7 to be divided into a cable pull-out segment 72 extending outside the case 1 and a cable winding segment 73. The cable pull-out segment 72 and the cable winding segment 73 have a first angle α, and during the winding process of the cable 7, the guide section 4 is always pressed against the cable 7, so that the connector 71 of the cable 7 returns to the correct position under the action of the tension of the cable 7 itself and the winding force of the cable winding reel 3.

[0028] To understand this, when the cable is pulled out, when an external force is applied to one end of the cable 7 that is separated from the cable winding reel 3, the portion of the cable 7 housed in the housing 2 rotates along the first direction, driving the cable winding reel 3 to rotate simultaneously along the first direction, causing the cable 7 to be pulled out under the action of the external force, making the cable pull-out segment 72 of the cable 7 longer and the cable winding segment 73 of the cable 7 shorter. When the cable is wound in, as the cable winding reel 3 rotates along the opposite direction to the first direction, the cable 7 rotates synchronously along the opposite direction to the first direction under the action of the winding force of the cable winding reel 3, and is quickly wound onto the cable winding reel 3, making the cable pull-out segment 72 of the cable 7 shorter and the cable winding segment 73 of the cable 7 longer, so that the cable pull-out segment 72 of the cable 7 is redirected by the guide 4 under the action of the guide 4, and then the cable winding segment 73 of the cable 7 is wound onto the cable winding reel 3. During the winding process of the cable 7, the guide section 4 is always in contact with the cable 7, and the cable pull-out segment 72 and the cable winding segment 73 have a first angle, so the case 1 restricts the direction of movement of the cable pull-out segment 72 of the cable 7, the cable winding reel 3 restricts the direction of movement of the cable winding segment 73 of the cable 7, the guide section 4 can always provide pressure to the cable 7, and therefore the cable 7 is in a taut state under the action of the pressure of the guide section, the cable 7 itself has tension, and the cable 7 is Under the winding force of the cable winding reel 3, a constant winding speed is maintained, and under the tension of the cable 7 itself and the winding force of the cable winding reel 3, the connector 71 of the cable 7 tends to return to a state where it is not twisted relative to the cable 7. As a result, the connector 71 eventually returns to the correct position where it is not twisted relative to the cable 7, further preventing cracks from occurring at the connection point between the connector 71 and the cable 7 due to torsional force, and ensuring the reliability of the cable winding device for long-term use.Compared to conventional position correction structures using magnets, the cable winding device according to the embodiment of the present invention does not require the use of magnets, reduces costs, and retains its position correction function even after multiple uses.

[0029] Preferably, the first direction may be clockwise or counterclockwise. If the first direction is counterclockwise, the direction opposite to the first direction is clockwise.

[0030] Furthermore, the cable pull-out segment 72 and the cable wind-up segment 73 have a first angle α, and in order to avoid the cable 7 being excessively bent and subjected to excessive bending stress, the first angle α must be set not to be too small. Naturally, the first angle α must not be set to be too large, as if it is too large, the tension of the guide section 4 on the cable 7 will be weak. Specifically, the first angle α may be set to 120° to 170°, in which case it is possible to avoid the cable 7 being excessively bent and subjected to excessive bending stress, while the guide section 4 can provide appropriate tension to the cable 7. For example, the first angle α can be set to 125°, 130°, 135°, 140°, 150°, 160°, etc.

[0031] Preferably, cable 7 is one of the following: a power cable, a data cable, a charging cable, an earphone cable, or an audio cable.

[0032] In one embodiment, as shown in Figures 3 and 4, the housing 2 includes a first wall surface 201 and a second wall surface 202 that are opposite to each other in the height direction of the housing 2. The guide section 4 includes a rotating shaft 41 that is rotatably provided in the housing 2, specifically the rotating shaft 41 includes a first end and a second end that are opposite to each other in the axial direction of itself, the rotating shaft 41 having the first end rotatably connected to the first wall surface 401 and / or the second end rotatably connected to the second wall surface 402. That is, the rotating shaft 41 can achieve a rotatable connection between the rotating shaft 41 and the housing 2 regardless of whether the first end is rotatably connected to the first wall surface 401 or the second end is rotatably connected to the second wall surface 402. When pulling out the cable, the cable winding segment 73 of the cable 7 is reoriented by the rotating shaft 41 to form the cable pull-out segment 72. When winding the cable, the rotating shaft 41 is always in contact with the cable 7, and the rotating shaft 41 is always able to supply pressure to the cable 7. As a result, the cable 7 is in a taut state under the pressure of the guide section, and the connector 71 of the cable 7 returns to its initial state where it is not twisted relative to the cable 7 under the tension of the cable 7 itself and the winding force of the cable winding reel 3. This prevents the connection point between the connector 71 and the cable 7 from being subjected to torsional force and causing cracks, thereby ensuring the reliability of the cable winding device for long-term use.

[0033] The rotating shaft 41 is rotatably mounted in the housing 2. When the cable is pulled out or wound up, friction is generated between the rotating shaft 41 and the outer circumference of the cable 7. As the rotating shaft 41 rotates around its own axis due to friction, the frictional force between the cable 7 and the rotating shaft 41 is reduced. Furthermore, because the rotating shaft 41 is always in contact with the cable 7, direct contact between the cable 7 and the housing 2 can be avoided, thereby reducing the frictional force between the cable 7 and the housing 2 and preventing wear of the outer layer of the cable 7 after long-term use.

[0034] In one embodiment not shown, the guide section 4 includes a reversing block, which is provided in the housing and has a third passage through which the cable 7 passes. When the cable is pulled out, the cable winding segment 73 of the cable 7 is reversed through the third passage of the reversing block to form the cable pull-out segment 72. When the cable is wound up, the reversing block is always in contact with the cable 7 and can always supply pressure to the cable 7, so that the cable 7 is taut under the pressure of the reversing block, and the connector 71 of the cable 7 can return to the correct position where the connector 71 is not twisted relative to the cable 7 under the tension of the cable 7 itself and the winding force of the cable winding reel 3, thereby preventing the connection between the connector 71 and the cable 7 from being subjected to torsional force and cracking, and ensuring the reliability of the cable winding device for long-term use.

[0035] In one embodiment, as shown in Figures 3 and 4, the housing 2 is provided with a second outlet 221 (shown in Figure 2) through which a cable exit segment 72 passes, and a pivot shaft 41 is provided close to the second outlet 221. The housing 2 includes a third wall surface 203 and a fourth wall surface 204 that are opposite each other in the width direction of the housing 2, and the second outlet 221 is formed by being enclosed in order by the first wall surface 201, the third wall surface 203, the second wall surface 202 and the fourth wall surface 204. When a cable is pulled out, the cable 7 is guided by the guide section 4, and then the cable exit segment 72 can extend out of the second outlet 221. The pivot shaft 41 may be provided in the internal space of the housing 2 (i.e., the first housing cavity described later), and the pivot shaft 41 is provided close to the second outlet 221 to facilitate the extension of the cable exit segment 72 from the second outlet 211, thereby avoiding interference between the cable exit segment 72 and the housing 2.

[0036] In another embodiment, as shown in Figure 4, the rotating shaft 41 is provided at the second outlet 221 and may be provided close to the fourth wall surface 404, and a first passage 42 for the cable pull-out segment 72 to pass through is formed between the outer circumference of the rotating shaft 41 and the third wall surface 403. The size of the first passage 42 may be set to be slightly larger than the cross-sectional size of the cable 7, preventing the cable 7 from directly contacting the wall surface of the housing 2 during the pulling out or winding process, thereby reducing the frictional force between the cable 7 and the housing 2 and preventing wear of the outer layer of the cable 7 after long-term use.

[0037] In another embodiment, as shown in Figure 4, the rotating shaft 41 is provided at the second outlet 221 and may be provided close to the third wall surface 403, and a second passage 43 for the cable pull-out segment 72 to pass through is formed between the outer circumference of the rotating shaft 41 and the fourth wall surface 403. Similarly, the size of the second passage 43 may be set to be slightly larger than the cross-sectional size of the cable 7, preventing the cable 7 from directly contacting the wall surface of the housing 2 during the pulling out or winding process, thereby reducing the frictional force between the cable 7 and the housing 2 and preventing wear of the outer layer of the cable 7 after long-term use.

[0038] Preferably, as shown in Figure 3, an arrow indicator is provided on the housing 2, and the direction of the arrow indicates a first direction, that is, when the cable winding reel 3 rotates about the first direction, the cable 7 is in the pulled-out state.

[0039] In one embodiment, as shown in Figures 5 and 6, the case 1 is provided with a first outlet 11 and a storage groove 12 for housing the connector 71 of the cable 7. The first outlet 11 communicates with the storage groove 12, and the cable exit segment 72 extends from the first outlet 11 to the outside of the case 1. The size of the first outlet 11 is configured to be smaller than the minimum dimensions of the connector 71. For example, one end of the connector 71 adjacent to the first outlet 11 has a first height, and the first outlet 11 has a second height. Since the second height of the first outlet 11 is smaller than the first height of the connector 71, the first outlet 11 can prevent the connector 71 of the cable 7 from entering the internal space of the case 1 during the cable winding process.

[0040] Furthermore, as shown in Figure 6, the storage groove 12 has a fifth wall surface 121, which at least partially adheres to the outer circumference of the connector 71 of the cable 7, thereby improving the stability of the storage of the connector 71. The fifth wall surface 121 may be flat or curved, and is specifically designed according to the shape of the connector 71. For example, if the connector is provided in a rectangular parallelepiped, the fifth wall surface 121 is provided on a flat surface accordingly. Furthermore, if there is a second angle β between the fifth wall surface 121 and the horizontal direction, the size of the second angle β is specifically designed according to the aesthetic appearance of the design, and it is necessary to ensure that the storage groove 71 has sufficient space to accommodate the connector 71 of the cable 7.

[0041] In one embodiment, as shown in Figure 5, the case 1 is provided with a guide groove 13, which communicates with a storage groove 12. Specifically, the guide groove 13 is provided at one end of the storage groove 12 spaced apart from the first exit 11. Preferably, the guide groove 13 has a guide slope, which forms a third angle with the horizontal direction. This third angle may be greater than or equal to the second angle, and preferably, by making the third angle greater than the second angle, it provides a guiding action for the connector 71 of the cable 7. In the process of winding the cable, the connector 71 is guided by the guide groove 13 and then finally stored in the storage groove 12.

[0042] In another embodiment, as shown in Figure 6, the guide groove 13 has a guide surface 131, and the gradient of the guide surface 131 gradually decreases along the direction approaching the storage groove 12, thereby guiding the cable 7 to the connector 71 during the cable winding process.

[0043] In this embodiment, when winding the cable, the cable winding reel 3 rotates in the opposite direction to the first direction, causing the cable 7 to rotate synchronously in the opposite direction to the first direction and be quickly wound onto the cable winding reel 3. During the winding process of the cable 7, the guide groove 13 guides the cable 7 so that it gradually approaches the storage groove 12, and the guide part 4 is always in contact with the cable 7, so that the cable 7 changes direction from the first outlet 11 under the action of the guide part 4, passes through the second outlet 221 and is wound onto the cable winding reel 3, and because the guide groove 13 performs a guiding action, the connector 71 of the cable 7 is stored in the storage groove 12 of the case 1 and returns to the correct position under the action of the tension of the cable 7 itself and the winding force of the cable winding reel 3.

[0044] In one embodiment, as shown in Figures 7 to 9, the housing 2 includes a base 21 and a top cover 22, the top cover 22 is placed over the base 21, a first housing cavity is formed between the top cover 22 and the base 21, and a cable winding reel 3 is provided in the first housing cavity, the cable winding reel 3 includes a fixed shaft 31, a first reel body 32 and a second reel body 33, the first reel body 32 and the second reel body 33 are provided in parallel, a space for winding the cable 7 is defined between them, the fixed shaft 31 has a first end connected to the first reel body 32 and a second end that passes through the second reel body 33 and is rotatably connected to the base 21, and one end of the cable 7 that is spaced away from the connector 71 is connected to the fixed shaft 31. During the assembly process, the cable winding reel 3 may first be attached to the base 21, and then the top cover 22 may be placed over the base 21 and secured to the base 21.

[0045] Preferably, the connection method between the top cover 22 and the base 21 includes engagement connections and fixed connections using fastening members, but this application does not specifically limit this.

[0046] The specific method by which the second end of the fixed shaft 31 is rotatably connected to the base 21 is not limited; for example, the base 21 may be provided with a shaft hole, and the second end of the fixed shaft 31 may be rotatably connected to the shaft hole.

[0047] Preferably, as shown in Figure 8, the first wall surface 201 may be provided on the inner wall surface of the base 21, and the second wall surface 202, third wall surface 203, and fourth wall surface 204 may be provided on the inner wall surface of the top cover 22. When the rotating shaft 41 is provided at the second outlet 221, the first wall surface 201 may be provided with a first connection hole which is rotatably connected to the rotating shaft 41, and the second wall surface 202 may be provided with a second connection hole which is rotatably connected to the rotating shaft 41.

[0048] The cable winding reel 3 is rotatable relative to the housing 2 about its axis of rotation, i.e., the central axis of the fixed shaft 31. As shown in Figure 10, when the cable is pulled out, the portion of the cable 7 housed in the winding space rotates along the first direction, and one end of the cable 7 that is separated from the connector 71 is fixedly connected to the fixed shaft 31. This allows the cable winding reel 3 to be driven and rotated relative to the base 21 about the central axis of the fixed shaft 31, causing the cable 7 to extend by passing through the second outlet 221 and the first outlet 11 in sequence. When the cable is wound up, the cable winding reel 3 rotates along the direction opposite to the first direction, causing the cable 7 to rotate synchronously along the direction opposite to the first direction and to be wound one turn at a time within the winding space of the cable winding reel 3. During the winding process of the cable 7, the guide portion 4 is always in contact with the cable 7, so that the cable 7 changes direction from the first outlet 11 under the action of the guide portion 4, passes through the second outlet 221, and is wound onto the cable winding reel 3.

[0049] Preferably, a plurality of first housing cavities may be formed between the top cover 22 and the base 21. For example, as shown in Figure 8, two first housing cavities can be formed between the top cover 22 and the base 21, so that two cable winding reels 3 can be housed in the case 1, and two first outlets 11 are formed in the case 1 accordingly. The top cover 22 may be provided with the second outlet 221.

[0050] In one embodiment, as shown in Figure 8, the cable winding device includes a coil spring 5, the first end of which is connected to a cable winding reel 3 and the second end of which is connected to a housing 2. The coil spring 5 is a spiral spring, which elastically deforms during the cable pulling process, realizing the accumulation of elastic potential energy. When it stops pulling the cable 7 outwards, the cable winding reel 3 rotates in the opposite direction to the first direction due to the elastic restoring force of the spiral spring, thereby winding the cable 7.

[0051] In other embodiments, the coil spring 5 may be a rotary motor or the like.

[0052] In one embodiment, as shown in Figures 8 and 9, a projection 222 is provided on the outer wall of the top cover 22, and a second housing cavity is defined by the projection 222 and the outer wall of the top cover 22, and the coil spring 5 is provided in the second housing cavity, and a first engaging portion 223 is provided on the top cover 22, and the first end of the coil spring 5 is connected to the first engaging portion 223, and a second engaging portion 321 is provided on the side of the first reel body 32 facing away from the second reel body 33, and the second engaging portion 321 is provided coaxially with the fixed shaft 31, passes through the top cover 22 and is connected to the second end of the coil spring 5. The projection 222 may be provided as an annular baffle, which acts as a position limiter and can prevent the coil spring 5 from shifting relative to the top cover 22 during operation. The first engaging portion 223 may include an engaging plate fixedly connected to the first end of the coil spring 5, and the second engaging portion 321 may include an engaging shaft having a locking groove formed therein, which is engaged and connected to the second end of the coil spring 5.

[0053] When the cable is pulled out, the portion of the cable 7 stored in the winding space rotates along the first direction, and one end of the cable 7 that is separated from the connector 71 is fixedly connected to the fixed shaft 31. This allows the cable winding reel 3 to be driven and rotated relative to the base 21 about the central axis of the fixed shaft 31, causing the engagement shaft to rotate accordingly. The coil spring 5 undergoes elastic deformation during the cable pulling process, accumulating elastic potential energy. When the pulling of the cable 7 outward stops, the cable winding reel 3 rotates along the opposite direction to the first direction due to the elastic restoring force of the coil spring, thereby winding the cable 7.

[0054] In one embodiment, as shown in Figures 11 and 12, a first position limiting portion 322, a second position limiting portion 323, and a third position limiting portion 324 are provided on the side of the first reel body 32 facing away from the second reel body 33, and the first position limiting portion 322, the second position limiting portion 323, and the third position limiting portion 324 are provided in order from the center outward of the first reel body 32, and a cable winding groove 325 is formed between the first position limiting portion 322 and the second position limiting portion 323, and the second position limiting portion 32 A cable pull-out groove 326 is formed between 3 and the third position limiting portion 324, and a stopper member 6 is rotatably provided on the inner wall of the top cover 22, which can swing relative to the cable winding reel 3 when the cable winding reel 3 is driven, and a ball 61 is provided on the stopper member 6 which can slide on the cable winding groove 325 or the cable pull-out groove 326 so that the cable winding reel 3 is in a cable winding state or a cable pull-out state.

[0055] The first position limiting portion 322 may include a first annular boss, the second position limiting portion 323 may include a second annular boss, and the third position limiting portion 324 may include a third annular boss. The first annular boss, the second annular boss, and the third annular boss are arranged sequentially along the radial direction of the first reel body 32. A cable winding groove 325 is formed between the first annular boss and the second annular boss, and a cable pull-out groove 326 is formed between the second annular boss and the third annular boss. The stopper member 6 can swing relative to the cable winding reel 3 by the drive of the cable winding reel 3, so that the ball 61 can slide on the cable winding groove 325 or the cable pull-out groove 326. When the ball 61 slides on the cable winding groove 325, the cable winding reel 3 is in a cable pull-out state and the cable 7 can extend outwards. When the ball 61 slides on the cable pull-out groove 326, the cable winding reel 3 is in a cable wind-up state and the cable 7 can be wound onto the cable winding reel 3.

[0056] The stopper member 6 includes a lever whose first end is rotatably connected to the top cover 22 via a pivot shaft, and whose second end is provided with the ball 61. The projection 222 of the ball 61 relative to the lever is slidably fitted into the cable winding groove 325 or the cable pulling groove 326, respectively. A sliding groove 224 for housing the lever is provided on the side of the top cover 22 facing the cable winding reel 3. The sliding groove 224 can form a certain positional limiting effect on the ball 61 in the rotational direction of the cable winding reel 3, so that the ball 61 cannot be displaced relative to the housing 2 in the rotational direction of the cable winding reel 3. When the cable winding reel 3 is in the cable pulling or winding state, the ball 61 and the top cover 22 are fixed relative to each other in the rotational direction of the cable winding reel 3. Being fixed relative to each other means that the ball 61 and the top cover 22 are not displaced relative to each other in the rotational direction of the cable winding reel 3. As the cable winding reel 3 rotates relative to the housing 2, the ball 61 creates the effect of moving within the cable winding groove 325 or the cable outlet groove 326.

[0057] Specifically, for the sake of explanation and understanding, the first direction may be the R1 direction shown in Figure 13, and the direction opposite to the first direction may be the R2 direction shown in Figure 14. As shown in Figure 13, when the cable winding reel 3 rotates along the first direction R1, the ball 61 can move within the cable pull-out groove 326, at which point the cable 7 is pulled outwards, forming a cable pull-out effect. As shown in Figure 14, when the cable winding reel 3 rotates along the direction R2 opposite to the first direction, the ball 61 can move within the cable winding groove 325, at which point the cable 7 is rewound, forming a cable winding effect.

[0058] In one embodiment, as shown in Figure 13, the second position limiting portion 323 is provided with a first communication groove 3231, which communicates with the cable pull-out groove 326 and the cable winding groove 325. A locking portion 327 is provided on the side of the first reel body 32 that faces away from the second reel body 33, and the locking portion 327 is provided with a locking position 3271 that engages with the ball 61, and the locking position 3271 is formed recessed within the first communication groove 3231.

[0059] When the ball 61 moves to the locked position 3271, the cable winding reel 3 cannot continue to move along the direction R2 opposite to the first direction, thus forming a locking effect on the cable winding reel 3 in the cable winding direction, preventing the cable 7 from continuing to unwind, maintaining the corresponding length of the cable 7. By controlling the rotation direction of the cable winding reel 3, the user can adjust the length of the cable 7 pulled out, and the cable 7 can form a locking effect at various lengths, making it easy for the user to use.

[0060] Specifically, in the locked state, as shown in Figure 13, when the ball 61 is in the locked position 3271, as the cable winding reel 3 rotates along the first direction R1, the ball 61 can continue to move from the locked position 3271 to the cable pull-out groove 326. One full rotation of the ball 61 in the cable pull-out groove 326 represents one full rotation of the cable 7. When the pulling of the cable 7 outward is stopped, the cable winding reel 3 rotates in the opposite direction to the first direction due to the elastic restoring force of the coil spring 5, causing the ball 61 to move from the first communication groove 3231 to the locked position 3271 under the action of the locking part 327, thereby forming a locking effect. Therefore, after stopping once, the cable 7 can be pulled out again and slowly released. Through the cooperation of the cable winding reel 3, winding spring 5, stopper member 6, and locking part 327, the cable winding reel 3 is restricted from rotating in the opposite direction to the first direction, allowing the stop to continue when increasing the length of the cable 7, and enabling multi-stage stopping. In this way, the cable 7 can be pulled out to multiple lengths, facilitating use in different scenarios. Furthermore, the length of the cable 7 can be increased multiple times without winding the cable, while maintaining the stop.

[0061] In one embodiment, as shown in Figure 14, the second position limiting section 323 is provided with a second communication groove 3232, which communicates with the cable pull-out groove 326 and the cable winding groove 325, and the first communication groove 3231 and the second communication groove 3232 are provided on both sides of the locking section 327, respectively. When the pulling of the cable 7 outward is stopped, the cable winding reel 3 rotates in the direction R2 opposite to the first direction by the elastic restoring force of the coil spring 5, and the ball 61 enters the cable winding groove 325 from the second communication groove 3232, thereby achieving the cable winding effect.

[0062] As shown in Figure 11, the locking portion 327 is provided with a first guide surface 3272, which extends inclined from the cable pull-out groove 326 toward the cable winding groove 325 in the direction opposite to the first direction, thereby guiding the ball 61 to move from the cable pull-out groove 326 through the second communication groove 3232 toward the cable winding groove 325.

[0063] As shown in Figure 11, the locking portion 327 is provided with a second guide surface 3273, which extends inclined along the first direction from the cable pull-out groove 326 toward the locking position 3271, thereby guiding the ball 61 to move from within the cable pull-out groove 326 toward the locking position 3271 as the cable winding reel 3 moves along the first direction.

[0064] It should be understood that the terminology used in this specification is intended to describe specific exemplary embodiments and is not intended to be limiting. Unless otherwise explicitly indicated in the context, the singular forms “1,” “one,” and “above” used in this specification may include the plural form. The terms “include,” “equip,” “contain,” and “have” are inclusive and thereby specify the presence of the described features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The steps, processes, and operations of the methods described in this specification should not necessarily be construed as having to be performed in a specific order described or explained unless the order of execution is explicitly specified. It should also be understood that different or alternative steps may be used.

[0065] In this specification, terms such as "first," "second," and "third" may be used to describe multiple elements, components, regions, layers, and / or parts, but these elements, components, regions, layers, and / or parts should not be limited by these terms. These terms are used simply to distinguish one element, component, region, layer, or part from another region, layer, or part. Terms such as "first," "second," and other numerical terms used in this specification do not imply order or sequence unless explicitly indicated by the context. Accordingly, the first element, component, region, layer, or part described below may be referred to as the second element, component, region, layer, or part without departing from the teaching of the exemplary embodiments.

[0066] The above description is merely a specific embodiment of the present application, and a person skilled in the art can understand or implement the present application. Various modifications to these embodiments are obvious to a person skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Accordingly, the present application is not limited to these embodiments described herein, but conforms to the broadest scope that is consistent with the principles and novel features filed herein. [Explanation of Symbols]

[0067] 1 case 11 Exit 1 12 storage grooves 121 Fifth Wall 13 Guide grooves 131 Guide Surface 2 Housing 201 First Wall 202 Second Wall 203 Third Wall 204 Fourth Wall 21 Base 22 Top Cover 221 Exit 2 222 Protrusion 223 First engaging part 224 Slide grooves 3. Cable winding reel 31 Fixed axis 32. First reel body 321 Second engaging part 322 First position limiting section 323 Second position limiting section 3231 1st communication groove 3232 2nd communication groove 324 Third position limiting section 325 Cable winding groove 326 Cable outlet groove 327 Lock section 3271 Lock position 3272 First guide surface 3273 Second guide surface 33. Second reel body 4 Guide section 41 Rotation axis 42 1st aisle 43 2nd aisle 5 coil springs 6 Stopper member 61 Ball 7 Cables 71 Connectors 72 Cable Outlet Segments 73 Cable winding segments

Claims

1. The case and A housing provided inside the aforementioned case, A cable winding reel is rotatably mounted within the housing to wind up the cable, The housing includes a guide portion that guides the cable to be divided into a cable pull-out segment extending outside the case and a cable wind-up segment, and the cable pull-out segment and the cable wind-up segment have a first angle between them. A cable winding device characterized in that, during the cable winding process, the guide portion is always pressed against the cable, so that the cable connector returns to the correct position under the action of the tension of the cable itself and the winding force of the cable winding reel.

2. The housing includes a first wall surface and a second wall surface that are positioned opposite each other in the height direction of the housing, The cable winding device according to claim 1, wherein the guide portion includes a rotating shaft having a first end and a second end provided opposite to each other in the axial direction thereof, and the rotating shaft is characterized in that the first end is rotatably connected to the first wall surface and / or the second end is rotatably connected to the second wall surface.

3. The cable winding device according to claim 2, characterized in that the housing is provided with a second outlet for the cable pull-out segment to pass through, the rotating shaft is provided in proximity to the second outlet, the housing includes a third wall surface and a fourth wall surface provided opposite to each other in the width direction of the housing, and the second outlet is formed by being surrounded by the first wall surface, the third wall surface, the second wall surface and the fourth wall surface.

4. The rotating shaft is provided at the second outlet, and a first passage is formed between the outer circumference of the rotating shaft and the third wall surface for the cable pull-out segment to pass through. Alternatively, the cable winding device according to claim 3, wherein the rotating shaft is provided at the second outlet, and a second passage for the cable pull-out segment to pass through is formed between the outer circumference of the rotating shaft and the fourth wall surface.

5. The cable winding device according to claim 1, characterized in that the case is provided with a first outlet and a storage groove for housing the connector of the cable, the first outlet communicates with the storage groove, the cable pull-out segment extends from the first outlet to the outside of the case, and the storage groove has a fifth wall surface that is at least partially in contact with the outer circumference of the connector of the cable.

6. The cable winding device according to claim 5, characterized in that the case is provided with a guide groove for guiding the connector of the cable, the guide groove has a guide slope connected to the fifth wall surface, and / or the guide groove has a guide curved surface connected to the fifth wall surface.

7. The housing includes a base and a top cover, the top cover is placed over the base, a first housing cavity is formed between the top cover and the base, and the cable winding reel is provided within the first housing cavity. The cable winding reel includes a fixed shaft, a first reel body, and a second reel body, the first reel body and the second reel body are arranged parallel to each other, and a cable winding space is defined between them. The cable winding device according to claim 1, characterized in that the fixed shaft has a first end connected to the first reel body, a second end that passes through the second reel body and is rotatably connected to the base, and one end that is spaced apart from the connector of the cable is connected to the fixed shaft.

8. The cable winding device according to claim 7, characterized in that it includes a coil spring, the first end of which is connected to the cable winding reel and the second end of which is connected to the housing.

9. A projection is provided on the outer wall of the top cover, and a second housing cavity is defined by the projection and the outer wall of the top cover, and the coil spring is provided within the second housing cavity. The top cover is provided with a first engagement portion, and the first end of the coil spring is connected to the first engagement portion. The cable winding device according to claim 8, characterized in that a second engaging portion is provided on the side of the first reel body facing away from the second reel body, the second engaging portion is provided coaxially with the fixed shaft and passes through the top cover and is connected to the second end of the coil spring.

10. A first position limiting portion, a second position limiting portion, and a third position limiting portion are provided on the side of the first reel body facing away from the second reel body, and the first position limiting portion, the second position limiting portion, and the third position limiting portion are provided in order from the center outward of the first reel body. A cable winding groove is formed between the first position limiting portion and the second position limiting portion, and a cable pull-out groove is formed between the second position limiting portion and the third position limiting portion. The cable winding device according to claim 7, wherein a stopper member is rotatably provided on the inner wall of the top cover, which is pivotable relative to the cable winding reel when the cable winding reel is driven, and the stopper member is provided with a ball that is slidable on the cable winding groove or the cable pulling groove so that the cable winding reel is in a cable winding state or a cable pulling state.

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