Data line expansion device

Abstract

The utility model discloses a data line telescopic device, which comprises a shell, a locking mechanism, a winding structure and a rotating shaft, and is characterized in that the rotating shaft is rotatably connected to the shell; the winding structure and the locking mechanism are arranged on the rotating shaft; when the winding structure drives the rotating shaft to rotate in different directions, the locking mechanism can lock or unlock the rotating shaft. According to the data line locking device, the data line can be locked to prevent automatic take-up, meanwhile, the locking mechanism cannot touch the data line, and the data line cannot be damaged.

Description

Technical Field

[0001] The embodiments of the present utility model relate to the technical field of electronic device accessories, and particularly to a data cable telescopic device. Background Art

[0002] As a common data transmission tool, a data cable is used to connect two electronic devices for data transmission or to connect an electronic device to a power source for charging.

[0003] Currently, there has emerged a data cable telescopic device with a retractable function. The data cable telescopic device usually uses a spring as the power for winding the cable. When the data cable is pulled out, the spring is wound up, and when the data cable is retracted, the spring provides kinetic energy, so that the inconvenience caused by the data cable being too long or too short during use is reduced.

[0004] However, after the existing data cable telescopic device pulls out a certain length of the data cable, generally, the data cable is squeezed between the locking device and the housing to prevent the data cable from automatically retracting. This locking mode is not stable and easily causes the data cable to be squeezed and deformed or even damaged. Summary of the Utility Model

[0005] The embodiments of the present utility model provide a data cable telescopic device and a charging device to solve the technical problem that the locking method of the data cable in the existing data cable telescopic device is likely to damage the data cable.

[0006] To achieve the above object, the embodiments of the present utility model provide a data cable telescopic device, including a housing, a locking mechanism, a cable winding structure, and a rotating shaft. The rotating shaft is rotatably connected to the housing; the cable winding structure and the locking mechanism are arranged on the rotating shaft; when the cable winding structure drives the rotating shaft to rotate in different directions, the locking mechanism can lock or unlock the rotating shaft.

[0007] Preferably, the locking mechanism includes a limiting mechanism and a movement track arranged on the circumferential side wall of the rotating shaft. The limiting mechanism slides in the movement track, and the rotating shaft rotates in a first direction and a second direction in opposite directions;

[0008] When the rotating shaft is in the unlocked state, the limiting mechanism slides freely relative to the movement track; the rotating shaft can rotate freely in the first direction and the second direction;

[0009] When the rotating shaft is in the locked state, the movement track restricts the relative movement of the limiting mechanism; the rotating shaft is locked and stops rotating.

[0010] Preferably, the movement track includes an unlocking part and a locking part, and the limiting mechanism includes a connecting mechanism and a limiting member; the limiting member is connected to the connecting mechanism and at least partially arranged in the movement track;

[0011] When the limiting member moves within the unlocking portion, the rotating shaft is in an unlocked state, and the unlocking portion can rotate freely relative to the limiting member along the first direction or the second direction; when the limiting member moves within the locking portion and the rotating shaft rotates along the second direction, the rotating shaft can enter a locked state.

[0012] Preferably, both the locking portion and the unlocking portion extend circumferentially along the rotating shaft, and both ends of the locking portion communicate with the unlocking portion.

[0013] Preferably, the unlocking portion is an annular groove that surrounds the side of the rotating shaft for one week, and the locking portion is an arc-shaped groove that is arranged along a part of the circumference of the side of the rotating shaft; the unlocking portion and the locking portion are arranged at an interval along the axial direction of the rotating shaft.

[0014] Preferably, the movement track further includes a first connecting portion and a second connecting portion, and both ends of the first connecting portion and the second connecting portion are respectively connected to the locking portion and the unlocking portion.

[0015] Preferably, when the rotating shaft rotates along the first direction, the limiting member can enter the unlocking portion from the first connecting portion or enter the locking portion from the second connecting portion;

[0016] Wherein, in the radial direction of the rotating shaft, the depth of the locking portion is greater than the depth of the second connecting portion, and / or a blocking portion is provided at the connection between the locking portion and the second connecting portion.

[0017] Preferably, the depth of the second connecting portion is greater than the depth of the unlocking portion.

[0018] Preferably, a transition structure is provided at the connection between the first connecting portion and the unlocking portion or the locking portion; and / or the second connecting portion is inclined relative to the unlocking portion, the side surface of the unlocking portion is connected to the second connecting portion, the end portion of the second connecting portion connected to the unlocking portion is overlapped with the unlocking portion, and a transition structure is provided at the connection between the end portion of the second connecting portion and the unlocking portion.

[0019] Preferably, one end of the limiting member is connected to the connecting mechanism, and the other end abuts against the bottom wall in the movement track located in the radial direction of the rotating shaft;

[0020] Or, the limiting member is a spring pin, the spring pin includes a fixed section and a telescopic section, the telescopic section is telescopically connected to the fixed section, the fixed section is fixedly connected to the connecting mechanism, and the end of the telescopic section away from the fixed section abuts against the bottom wall in the movement track located in the radial direction of the rotating shaft.

[0021] Preferably, the data cable telescopic device further includes a frame body and a driving structure. The frame body is fixed to the housing, the connecting mechanism is movably installed on the housing or the frame body, and both ends of the driving structure are respectively connected to the frame body and the connecting mechanism. The driving structure is used to drive the connecting mechanism to move along the axial direction of the rotating shaft.

[0022] Preferably, the frame body includes a support column provided with a connecting track and a top plate provided at the top of the support column. The connecting mechanism is movably installed on the connecting track, and the driving structure is an elastic member provided between the top of the connecting mechanism and the top plate.

[0023] Preferably, the connecting mechanism includes a connecting block, sliding rails, and a column. The sliding rails are provided on both sides of the connecting block, and the sliding rails are respectively arranged in the connecting tracks of two relatively arranged support columns. One end of the column is provided on the connecting block, and the other end of the column extends into a connecting hole on the top plate. And / or, the driving structure is a spring, the spring is sleeved on the column, and both ends of the spring respectively abut against the connecting block and the top plate.

[0024] The embodiment of the present utility model has the following beneficial effects: In the data cable telescopic device of the embodiment of the present utility model, when pulling the cable, the cable winding structure rotates, and then the rotating shaft rotates accordingly. By providing a locking mechanism on the rotating shaft, the rotating shaft is unlocked or locked by driving the rotating shaft to rotate through the cable winding structure. When the rotating shaft is unlocked, the rotating shaft rotates freely, and the data cable can be normally pulled and automatically retracted. When the rotating shaft is locked, the rotating shaft cannot rotate, and the data cable cannot be retracted. Thus, the data cable is locked to prevent automatic retraction, and at the same time, the locking mechanism will not squeeze the data cable and will not cause damage to the data cable.

[0025] In addition to the purposes, features, and advantages described above, the embodiment of the present utility model has other purposes, features, and advantages. The following will refer to the accompanying drawings to make a further detailed description of the embodiment of the present utility model. Description of the Drawings

[0026] The drawings constituting a part of this application are used to provide a further understanding of the embodiment of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0027] Figure 1 is a schematic structural diagram of the data cable telescopic device of the embodiment of the present utility model;

[0028] Figure 2 is an internal structural diagram of the data cable telescopic device of the embodiment of the present utility model;

[0029] Figure 3It is a schematic structural diagram of the limiting mechanism and the frame body in the embodiment of the present utility model;

[0030] Figure 4 is Figure 3 exploded view of;

[0031] Figure 5 It is a schematic structural diagram of the first state of the locking mechanism in the embodiment of the present utility model;

[0032] Figure 6 It is a schematic structural diagram of the second state of the locking mechanism in the embodiment of the present utility model;

[0033] Figure 7 It is a schematic structural diagram of the first perspective of the rotating shaft in the embodiment of the present utility model;

[0034] Figure 8 It is a schematic structural diagram of the second perspective of the rotating shaft in the embodiment of the present utility model;

[0035] Figure 9 It is a schematic structural diagram of the third perspective of the rotating shaft in the embodiment of the present utility model;

[0036] Figure 10 It is a schematic internal structural diagram of the housing in the embodiment of the present utility model.

[0037] Each label in the figure represents: 1. Housing; 11. Fixed shaft; 2. Locking mechanism; 21. Movement track; 211. Unlocking part; 212. Locking part; 213. Second connecting part; 214. First connecting part; 22. Limiting mechanism; 221. Connecting mechanism; 2211. Connecting block; 2212. Slide rail; 2213. Column; 222. Limiting part; 23. Frame body; 231. Support column; 2311. Connecting track; 232. Top plate; 2321. Connecting hole; 233. Bottom plate; 3. Wire winding structure; 31. Wire winding disc; 32. Data cable; 4. Rotating shaft; 5. Driving structure; 6. Transition structure; 7. Blocking part. Detailed implementation manners

[0038] The technical solutions of the embodiments of the present utility model will be further elaborated in detail below in conjunction with the accompanying drawings of the specification and specific embodiments. In addition, unless otherwise defined, the technical terms or scientific terms used in the description of this application should be the ordinary meanings understood by those of ordinary skill in the art to which this application belongs. The words indicating directions such as "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer", etc. used in the description of this application are only used to indicate relative directions or positional relationships, rather than implying that the device or component must have a specific orientation, be constructed and operated in a specific orientation. When the absolute position of the object being described changes, its relative positional relationship may also change accordingly. Therefore, it should not be understood as a limitation to this application. The terms "first", "second", "third" and similar terms used in the description of this application are only for descriptive purposes to distinguish different components, and cannot be understood as indicating or implying relative importance. The similar words such as "a", "an" or "the" used in the description of this application should not be understood as an absolute limitation on the quantity, but should be understood as having at least one. The similar words such as "including" or "comprising" used in the description of this application mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects.

[0039] It should also be noted that, unless otherwise clearly specified and limited, the similar words such as "installed", "connected", "joined" used in the description of this application should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can also be the communication inside two components. Those skilled in the art can understand its specific meaning in this application according to the specific situation.

[0040] Such as Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 10As shown in the figure, the data cable 32 telescopic device of this embodiment includes a housing 1, a locking mechanism 2, a wire winding structure 3, and a rotating shaft 4. The rotating shaft 4 is rotatably installed on the housing 1. The wire winding structure 3 and the locking mechanism 2 are arranged on the rotating shaft 4, so that the wire winding structure 3 and the locking mechanism 2 rotate together with the rotating shaft 4. The wire winding structure 3 is, for example, a wire winding disk 31 and a data cable 32 wound inside the wire winding disk 31. When the user pulls the data cable 32, the wire winding disk 31 rotates, driving the rotating shaft 4 to rotate together. Then, when the wire winding structure 3 drives the rotating shaft 4 to rotate in different directions, the locking mechanism 2 can lock or unlock the rotating shaft 4. By arranging the locking mechanism 2 on the rotating shaft 4, when the rotating shaft 4 is unlocked, the rotating shaft 4 rotates freely, and the data cable 32 can be normally pulled and automatically retracted. When the rotating shaft 4 is locked, the rotating shaft 4 cannot rotate, and the data cable 32 cannot be retracted. Thus, the data cable 32 is locked to prevent automatic retraction, and at the same time, the locking mechanism will not squeeze the data cable 32, nor will it cause damage to the data cable 32.

[0041] The locking mechanism 2 unlocks or locks the rotating shaft 4 to enable the rotating shaft 4 to rotate unrestrictedly when the data cable 32 is pulled out and retracted. When the data cable 32 needs to be positioned, it only needs to be pulled to a specific length and then retracted by a preset length to position the data cable 32. The data cable 32 will no longer retract, and the extended part can be used by the user. To unlock the data cable 32 again, it only needs to be pulled outwards by a certain length again. To achieve the above functions, the locking mechanism 2 mainly includes a limiting mechanism 22 and a movement track 21 arranged on the circumferential side wall of the rotating shaft 4. The limiting mechanism 22 slides in the movement track 21, and the rotating shaft 4 rotates in a first direction and a second direction in opposite directions. When the rotating shaft 4 is in the unlocked state, the limiting mechanism 22 slides freely relative to the movement track 21. The rotating shaft 4 can rotate freely in the first direction and the second direction. It can be understood that free sliding and free rotation mean sliding or rotating at any angle along 360° in a certain direction. For example, the limiting mechanism 22 slides 360° relative to the movement track 21 in the first direction and / or the second direction. When the rotating shaft 4 is in the locked state, the movement track 21 restricts the relative movement of the limiting mechanism 22; the rotating shaft 4 is locked and stops rotating. It should be noted that the rotation in the first direction and the second direction is, for example, the clockwise direction or the counterclockwise direction. In this application, the first direction is the counterclockwise direction, and the second direction is the clockwise direction, which will not be elaborated here. When the data cable 32 is in the pulled-out state, the rotating shaft 4 rotates in the first direction. When the data cable 32 is in the retracted state, the rotating shaft 4 rotates in the second direction. The limitation of the rotation direction of the rotating shaft 4 in this embodiment is only for the description of this embodiment.

[0042] In one embodiment, the movement track 21 is provided on the circumferential side wall of the rotating shaft 4 and includes an unlocking portion 211 and a locking portion 212. The limiting mechanism 22 includes a connecting mechanism 221 and a limiting member 222. One end of the limiting member 222 is connected to the connecting mechanism 221, and the other end is at least partially disposed within the movement track 21. When the limiting member 222 moves within the unlocking portion 211, the rotating shaft 4 is in an unlocked state, that is, the limiting member 222 does not interfere with the unlocking portion 211, and the limiting member 222 can freely rotate relative to the unlocking portion 211 in the first direction or the second direction, that is, the rotating shaft 4 can rotate in the first direction or the second direction, corresponding to the pulling out and retracting states of the data cable 32. When the limiting member 222 moves within the locking portion 212 and the rotating shaft 4 rotates in the second direction, a blocking portion 7 for blocking the limiting member 222 is provided within the locking portion 212 to block the limiting member 222 from moving towards the unlocking portion 211, and the rotating shaft 4 then enters a locked state, and the data cable 32 cannot be retracted.

[0043] In one embodiment, the data cable telescopic device includes a housing 1. The housing 1 can be a base within the outer housing, or the outer housing of the data cable telescopic device is used to fix the rotating shaft 4. Taking the outer housing as an example in this embodiment, a fixed shaft 11 is provided within the housing 1, and the rotating shaft 4 is sleeved on the fixed shaft 11. The winding structure 3 includes a winding disc 31 and a data cable 32. The data cable 32 is wound around the winding disc 31. The winding disc 31 is provided with a through hole sleeved on the fixed shaft 11, and the limiting mechanism 22 is provided on the housing 1. The rotating shaft 4 and the winding structure 3 rotate relative to the housing 1 on a horizontal plane, and then the movement track 21 also rotates relative to the housing 1 on a horizontal plane. In this embodiment, both the locking portion 212 and the unlocking portion 211 extend along the circumference of the rotating shaft 4, and the two ends of the locking portion 212 are communicated with the unlocking portion 211 to enable the limiting member 222 to move from the unlocking portion 211 to the locking portion 212 and from the locking portion 212 to the unlocking portion 211, and so on in a cycle. Further, the unlocking portion 211 is an annular groove surrounding the side of the rotating shaft 4 for one week, and then the limiting member 222 can rotate 360° relative to the rotating shaft 4. The locking portion 212 is an arc-shaped groove provided along a part of the circumference of the side of the rotating shaft 4. It can be understood that the locking portion 212 is a partial annular groove to enable the locking portion 212 to be communicated with the unlocking portion 211. When the limiting member 222 enters the locking portion 212, the rotating shaft 4 only needs to rotate a small distance in the first direction, and then the rotating shaft 4 rotates in the second direction, and the locking portion 212 can block the limiting member 222. When the rotating shaft 4 needs to be unlocked, the rotating shaft 4 rotates the entire locking portion 212 in the first direction, and then it can enter the unlocking portion 211, which is convenient for the user to operate.

[0044] Further, the unlocking portion 211 and the locking portion 212 are arranged at intervals along the axial direction of the rotating shaft 4. Then, the limiting member 222 needs to move in the height direction of the rotating shaft 4 and does not move in the horizontal direction. With the rotation of the rotating shaft 4 itself and the up-and-down movement of the limiting member 222, unlocking and locking are achieved. When the data cable 32 is pulled out from the cable reel 31, the limiting member 222 successively falls into the locking portion 212 and the unlocking portion 211 and continuously cycles until the pulling of the data cable 32 stops. When the limiting member 222 falls into the locking portion 22, the data cable 32 cannot be automatically retracted. When the limiting member 222 falls into the unlocking portion 211, the data cable 32 can be automatically retracted.

[0045] Specifically, the unlocking portion 211 is an annular groove that surrounds the rotating shaft 4 for one circle, and the locking portion 212 is an arc-shaped groove. Both ends of the locking portion 212 are connected to the unlocking portion 211. When the data cable 32 is pulled out from the cable reel 31, the rotating shaft 4 rotates in the first rotation direction, and the limiting member 222 successively falls into the locking portion 212 and the unlocking portion 211 and continuously cycles until the rotating shaft 4 stops rotating. When the data cable 32 is retracted, the rotating shaft 4 will rotate in the second rotation direction opposite to the first rotation direction. If the limiting member 222 falls into the locking portion 212, the rotating shaft 4 is locked, and the data cable 32 cannot be automatically retracted. When the limiting member 222 falls into the unlocking portion 211, the data cable 32 can be automatically retracted.

[0046] When the data cable 32 is pulled out from the cable reel 31, the rotating shaft 4 rotates counterclockwise, which will cause the limiting member 222 to enter the locking portion 212 from the unlocking portion 211, and then fall from the locking portion 212 into the unlocking portion 211, and continuously cycle like this, so that the data cable 32 can be continuously pulled out to the maximum stretching length. When the limiting member 222 falls into the locking portion 212, if the cable is retracted at this time, the rotating shaft 4 rotates clockwise, and the limiting member 222 will block the rotating shaft 4 to limit the rotation of the rotating shaft 4, thereby locking the rotating shaft 4, and the data cable 32 will also be locked and cannot be retracted. After the rotating shaft 4 is locked, pulling the data cable 32 again causes the rotating shaft 4 to rotate counterclockwise, so that the rotating shaft 4 falls into the unlocking portion 211. If the cable is retracted at this time, the rotating shaft 4 rotates clockwise, and the limiting member 222 will always be in the unlocking portion 211 and will not enter the locking portion 212. Therefore, the limiting member 222 will not restrict the rotation of the rotating shaft 4 at this time, thereby unlocking the rotating shaft 4, and the data cable 32 can be normally wound up.

[0047] It can be understood that an opening through which the data line 32 extends is provided on the housing 1. The first end of the data line 32 extends out from the opening, facilitating the user to pull out the data line 32 for use. The second end of the data line 32 also extends out from the housing 1 and is connected to devices such as a charger head. There is a fixed point between the two ends of the data line 32. The fixed point of the data line 32 is fixedly connected to the cable reel 31. The part of the data line 32 from the fixed point to the first end is wound around the cable reel 31. A spring is provided inside the cable reel 31. When the data line 32 is pulled out, the data line 32 will drive the cable reel 31 to rotate, and the rotating shaft 4 fixed on the cable reel 31 will also rotate accordingly. At the same time, the spring will be compressed. When the user releases the data line 32, the spring will reset and drive the data line 32 to retract the line.

[0048] In this embodiment, when pulling the line, the winding structure 3 rotates, and then the rotating shaft 4 rotates accordingly. The movement track 21 on the rotating shaft 4 also rotates together, causing the limiting member 222 to move relative to the movement track 21, so that the limiting member 222 successively falls into the locking portion 212 and the unlocking portion 211 and continuously cycles. When the limiting member 222 moves within the locking portion 212, the line is retracted. At this time, the limiting member 222 will block the rotating shaft 4 to prevent the rotating shaft 4 from rotating, so that the rotating shaft 4 is locked and cannot automatically retract the line; when the limiting member 222 moves within the unlocking portion 211, the line is retracted, which will unlock the rotating shaft 4, and the rotating shaft 4 can rotate freely, then the data line 32 can be normally automatically retracted. The embodiment of the present utility model can lock the data line 32 to prevent automatic retraction of the line, and at the same time will not touch the data line 32, nor cause damage to the data line 32.

[0049] In a possible embodiment, as Figure 5 、 Figure 6 and Figure 9 shown, the unlocking portion 211 and the locking portion 212 are arranged in parallel at intervals along the axial direction of the rotating shaft. The movement track 21 further includes a first connecting portion 214 and a second connecting portion 213. The two ends of the first connecting portion 214 are respectively connected to the unlocking portion 211 and the locking portion 212; the two ends of the second connecting portion 213 are respectively connected to the unlocking portion 211 and the locking portion 212. The rotating shaft 4 rotates in the first direction, and the limiting member 222 can enter the unlocking portion 211 from the first connecting portion 214 or enter the locking portion 212 from the second connecting portion 213. When the rotating shaft 4 rotates in the second direction, the locking portion 212 needs to restrict the rotation of the limiting member 222 to prevent the limiting member 222 from entering the second connecting portion 212. Then, in the radial direction of the rotating shaft 4, the depth of the locking portion 212 is greater than the depth of the second connecting portion 213. A blocking portion 7 is formed at the connection between the second connecting portion 213 and the locking portion 212 to restrict the movement of the limiting member 222. In other ways, a blocking portion 7 can be directly provided at the connection between the second connecting portion 213 and the locking portion 212. The blocking portion 7 is, for example, a baffle to restrict the movement of the limiting member 222.

[0050] It should be noted that the connecting mechanism 221 not only enables the limiting member 222 to move up and down, but also provides the limiting member 222 with a force that always faces the axis along the radial direction of the rotating shaft 4 and a force that moves along the axial direction of the rotating shaft 4 towards the unlocking portion 211, so that the end face of the limiting member 222 connected to the moving track 21 always abuts against the groove wall of the moving track 21 in the radial direction of the rotating shaft 4, which will be uniformly referred to as the bottom wall hereinafter; and always pulls the limiting member 222 to move towards the unlocking portion 211. Therefore, in the radial direction of the rotating shaft 4, the depth of the locking portion 212 is set to be greater than the depth of the second connecting portion 213, and then the second connecting portion 213 naturally forms a baffle for the limiting member 222.

[0051] In one implementation manner, in the radial direction of the rotating shaft 4, the depth of the second connecting portion 213 is greater than the depth of the unlocking portion 211. The principle is the same as that the depth of the locking portion 212 is greater than the depth of the second connecting portion 213. When the rotating shaft 4 rotates in the first direction and the limiting member 222 needs to enter the locking portion 212 from the second connecting portion 213, in order to prevent the limiting member 222 from entering the unlocking portion 211 from the second connecting portion 213, resulting in the rotating shaft 4 always rotating in the unlocking portion 211 and the locking function failing, the depth of the second connecting portion 213 is greater than the depth of the unlocking portion 211, or a baffle is provided between the second connecting portion 213 and the unlocking portion 211. Since the limiting member 222 always abuts against the bottom wall, when the rotating shaft rotates in the first direction, the limiting member 222 moves from the unlocking portion 211 to the connection between the unlocking portion 211 and the second connecting portion 213 and automatically enters the second connecting portion 213, and then enters the locking portion 212, the first connecting portion 214, and the first unlocking portion 211 in sequence; and this cycle continues.

[0052] Further, in the radial direction of the rotating shaft 4, since the depth of the locking portion 212 is greater than that of the second connecting portion 213, and the depth of the second connecting portion 213 is greater than that of the unlocking portion 211; then the depth of the locking portion 212 is greater than that of the unlocking portion 211; thus, the first connecting portion 214 needs to be provided with a transition structure 6 so that the limiting member 222 can climb from the locking portion 212 with a deeper groove to the unlocking portion 211 with a shallower groove. Alternatively, the groove depth of the first connecting portion 214 is the same as that of the locking portion 212, and a transition structure 6 is provided at the connection between the first connecting portion 214 and the unlocking portion 211. The transition structure 6 is, for example, a ramp surface, which can enable a smooth transition between two regions with a height difference, and the limiting member 222 can move smoothly. For example, two transition structures 6 are provided in the first connecting portion 214, which are provided at the connection with the first connecting portion 214 and are inclined in the first direction and the second direction respectively. The specific setting is determined according to the actual situation and is not uniquely limited here. The second connecting portion 213 is inclined relative to the unlocking portion 211, and the unlocking portion 211 is connected to the side surface of the second connecting portion 213, so that when the rotating shaft 4 rotates in the second direction, the limiting member 222 can fall from the unlocking portion 211 to the overlapping portion of the second connecting portion 213 and the unlocking portion 211, and then always move within the unlocking portion 211. The connecting end portion of the second connecting portion 213 and the unlocking portion 211 is partially overlapped with the unlocking portion 211, and a transition structure 6 is provided at the connection between the end portion of the second connecting portion 213 and the unlocking portion 211. Since the depth of the second connecting portion 213 is greater than that of the unlocking portion 211, an inclined surface needs to be provided for the movement from the second connecting portion 213 to the unlocking portion 212 so that the limiting member 222 can move from bottom to top.

[0053] Specifically, the second end of the locking portion 212 is connected to the first end of the second connecting portion 213, the second end of the second connecting portion 213 is connected to the unlocking portion 211, and the first end of the locking portion 212 is provided with a first connecting portion 214 communicating with the unlocking portion 211. Among them, in this embodiment, the unlocking portion 211 is provided below the locking portion 212 and is parallel to the locking portion 212. In other embodiments, the unlocking portion 211 can also be provided above the locking portion 212 and the two are not parallel. The first end of the locking portion 212 communicates with the unlocking portion 211 to form the first connecting portion 214. The second end of the locking portion 212 is the end of the locking portion 212 along the counterclockwise direction. The first end to the second end of the second connecting portion 213 is an inclined surface gradually downward along the counterclockwise direction, and the second end of the second connecting portion 213 extends to the lower end surface of the unlocking portion 211. As Figure 5As shown, when the rotating shaft 4 rotates clockwise, the limiting member 222 moves relative to the unlocking portion 211, and gradually moves away from the second end of the second connecting portion 213 after reaching the second end of the second connecting portion 213, so that the limiting member 222 is always in the unlocking portion 211. In this case, the data cable 32 can be normally wound; when the rotating shaft 4 rotates counterclockwise, after the limiting member 222 moves in the unlocking portion 211 to the second end of the second connecting portion 213, it will fall into the second connecting portion 213 and move along the second connecting portion 213 to the locking portion 212, and then fall from the first connecting portion 214 at the first end of the locking portion 212 into the unlocking portion 211. When the limiting member 222 falls into the locking portion 212, if the data cable 32 is wound at this time, the rotating shaft 4 will rotate clockwise, and the limiting member 222 will collide with the second end of the locking portion 212 to cause the rotating shaft 4 to be stuck and unable to rotate, thereby locking the data cable 32.

[0054] In a possible embodiment, as Figures 7 to 9 shown, along the radial direction of the rotating shaft 4, the depth of the second end of the locking portion 212 is greater than the depth of the first end of the second connecting portion 213, the depth of the second end of the second connecting portion 213 is greater than the depth of the unlocking portion 211 around the second end of the second connecting portion 213, and the groove depth of the locking portion 212 above the first connecting portion 214 is the same as the groove depth of the unlocking portion 211 below the first connecting portion 214.

[0055] It can be understood that when the groove depth of the second end of the locking portion 212 (the depth along the radial direction of the rotating shaft 4) is greater than the groove depth of the first end of the second connecting portion 213, when the data cable 32 is unwound, the limiting member 222 can enter the second end of the locking portion 212 from the first end of the second connecting portion 213, so as not to affect the rotation of the rotating shaft 4 when the data cable 32 is pulled out. When winding the cable, it can prevent the limiting member 222 from entering the first end of the second connecting portion 213 from the second end of the locking portion 212. Therefore, when the limiting member 222 falls into the locking portion 212, it can prevent the data cable 32 from being wound and lock the rotating shaft 4; since the second end of the second connecting portion 213 extends to the lower end surface of the unlocking portion 211 all the time, a part of the second connecting portion 213 coincides with the unlocking portion 211. In the overlapping part of the second connecting portion 213 and the unlocking portion 211, the groove depth of the second connecting portion 213 is greater than the groove depth of the surrounding unlocking portion 211. When the data cable 32 is unwound and the rotating shaft 4 rotates counterclockwise, the limiting member 222 can fall from the unlocking portion 211 into the second connecting portion 213, then enter the locking portion 212 from the second connecting portion 213, and then fall from the locking portion 212 into the unlocking portion 211, so as to continuously circulate to unwind the data cable 32.

[0056] It can be understood that since the groove depth of the locking portion 212 above the first connecting portion 214 is the same as the groove depth of the unlocking portion 211 below the first connecting portion 214, the groove depths of the respective regions of the unlocking portion 211 are different, forming a slope at the bottom of the unlocking portion 211. Specifically, at the position corresponding to the first connecting portion 214, the groove depth of the unlocking portion 211 is greater than the groove depth at the connection between the unlocking portion 211 and the second connecting portion 213. In other embodiments, it may also be that a transition slope with different groove depths is formed at the bottom of the locking portion 212 and / or the second connecting portion 213, such that the groove depth of the second end of the locking portion 212 is greater than the groove depth of the first end, and / or the groove depth of the first end of the second connecting portion 213 is greater than the groove depth of the second end, so as to ensure that the groove depths of the unlocking portion 211 and the locking portion 212 above and below the first connecting portion 214 are consistent. When the data line 32 pays out and the rotating shaft 4 rotates counterclockwise, the limiting member 222 moves from the second end of the locking portion 212 to the first end, and at the first end of the locking portion 212, it can fall from the first connecting portion 214 into the unlocking portion 211, so that the limiting member 222 is continuously in the cycle of the unlocking portion 211, the locking portion 212, and the second connecting portion 213.

[0057] In a possible embodiment, as Figure 3 and Figure 4 shown, one end of the limiting member 222 is movably connected to the connecting mechanism 221 in the radial direction of the rotating shaft 4, and the other end is disposed in the movement track 21 and abuts against the bottom of the movement track 21. Alternatively, the limiting member 222 is a spring pin, which includes a fixed section and a telescopic section. The telescopic section is telescopically connected to the fixed section, the fixed section is fixedly connected to the connecting mechanism 221, and the end of the telescopic section away from the fixed section abuts against the bottom of the movement track 21.

[0058] Specifically, when the data line 32 is pulled out, in order for the limiting member 222 to enter the second connection portion 213 from the unlocking portion 211, it is necessary to keep the end of the limiting member 222 tightly abutted against the bottoms of the unlocking portion 211 and the second connection portion 213 with different groove depths. For this purpose, the limiting member 222 in this embodiment adopts a spring pin, which includes a fixed section and a telescopic section. The telescopic section is telescopically connected to the fixed section, and the fixed section is fixedly connected to the connection mechanism 221. The end of the telescopic section away from the fixed section abuts against the bottom of the movement track 21. A spring is provided inside the spring pin. When the end of the telescopic section of the spring pin abuts against the connection portion between the unlocking portion 211 and the second connection portion 213, the spring inside the spring pin is compressed. When entering the second connection portion 213, the groove depth will become deeper. At this time, the spring inside the spring pin releases elastic potential energy, causing the telescopic section of the spring pin to pop out, and the end of the telescopic section abuts against the bottom of the second connection portion 213. Since the groove depth of the second connection portion 213 is deeper than that of the adjacent unlocking portion 211, therefore, the rotating shaft 4 under counterclockwise rotation will cause the spring pin to move along the second connection portion 213 towards the locking portion 212; while for the rotating shaft 4 under clockwise rotation, since the second connection portion 213 is a groove inclined upward in the clockwise direction, the spring pin will not be able to move along the second connection portion 213 towards the locking portion 212 after entering the second connection portion 213, and the spring pin will be pulled out from the second connection portion 213 to the unlocking portion 211, without affecting the normal pulling out of the data line 32; in other embodiments, an elastic member, such as a spring, can also be provided between the limiting member 222 and the connection mechanism 221 to enable the limiting member 222 to move along the radial direction of the rotating shaft 4, ensuring that the end of the limiting member 222 away from the connection mechanism 221 abuts against the bottom of the movement track 21.

[0059] In a possible embodiment, the locking mechanism 2 further includes a frame body 23 and a driving structure 5. The frame body 23 is fixed to the housing 1, the connection mechanism 221 is movably installed on the housing 1 or the frame body 23, and both ends of the driving structure 5 are respectively connected to the frame body 23 and the connection mechanism 221. The driving structure 5 is used to drive the connection mechanism 221 to move along the axial direction of the rotating shaft 4.

[0060] Among them, the connection mechanism 221 is specifically movably installed on the frame body 23. When the rotating shaft 4 rotates counterclockwise, after the limiting member 222 reaches the first end of the locking portion 212, the connection mechanism 221 can be driven by the driving structure 5 to move along the axial direction of the rotating shaft 4, thereby driving the limiting member 222 to fall into the unlocking portion 211 along the first connection portion 214, ensuring the smooth rotation of the rotating shaft 4. In other embodiments, from the first end of the locking portion 212 to the unlocking portion, the first connection portion 214 can also be an inclined groove inclined downward in the clockwise direction, so that when the rotating shaft 4 rotates counterclockwise, it can fall into the unlocking portion 211 more smoothly along the inclined groove from the first end of the locking portion 212.

[0061] It can be understood that when the data cable 32 is pulled out, the rotating shaft 4 rotates counterclockwise, and the limiting member 222 passes through the second connecting portion 213 from the unlocking portion 211 and enters the locking portion 212. Due to the height difference between the unlocking portion 211 and the locking portion 212, along the axial direction of the rotating shaft 4, a relative movement occurs between the limiting member 222 and the rotating shaft 4, so that the limiting member 222 or the rotating shaft 4 moves along the axial direction of the rotating shaft 4. In order to prevent the rotating shaft 4 and the wire reel 31 from moving up and down along the axial direction of the rotating shaft 4 and maintain the stability of the rotating shaft 4 and the wire reel 31, the connecting mechanism 221 is movably mounted on the frame body 23, so that when the rotating shaft 4 rotates, the connecting mechanism 221 drives the limiting member 222 to move along the axial direction of the rotating shaft 4 on the frame body 23.

[0062] In a possible embodiment, as Figure 3 and Figure 4 shown, the frame body 23 includes a support column 231 provided with a connecting track 2311 and a top plate 232 provided at the top of the support column 231. The connecting mechanism 221 is movably mounted on the connecting track 2311, and the driving structure 5 is an elastic member provided between the top of the connecting mechanism 221 and the top plate 232.

[0063] It can be understood that the connecting track 2311 adapted to the connecting mechanism 221 is provided on the support column 231, so that the connecting mechanism 221 can stably move on the connecting track 2311. A bottom plate 233 is further provided on the support column 231, and the bottom plate 233 and the top plate 232 limit the maximum moving distance of the connecting mechanism 221. When the limiting member 222 passes through the second connecting portion 213 from the unlocking portion 211 and enters the locking portion 212, the connecting mechanism 221 moves in the direction close to the top plate 232, so that the elastic member is compressed; when the limiting member 222 moves from the second end to the first end of the locking portion 212, the driving structure 5 releases the elastic potential energy and pushes the limiting member 222 to fall into the unlocking portion 211 along the first connecting portion 214.

[0064] In a possible embodiment, as Figure 4 shown, the connecting mechanism 221 includes a connecting block 2211, a slide rail 2212 and a column 2213. The slide rails 2212 are provided on both sides of the connecting block 2211, and the slide rails 2212 are respectively arranged in the connecting tracks 2311 of two relatively arranged support columns 231. One end of the column 2213 is provided on the connecting block 2211, and the other end of the column 2213 extends into the connecting hole 2321 on the top plate 232, and / or the driving structure 5 is a spring, the spring is sleeved on the column 2213, and the two ends of the spring respectively abut against the connecting block 2211 and the top plate 232.

[0065] It can be understood that the limiting member 222 is fixedly connected to the main body 221. The slide rails 222 on both sides of the connecting block 2211 respectively fall into the slide ways 2311 in two relatively arranged support columns 231. Through the two slide ways 2331, the slider 22 is more stable. In other embodiments, a single slide rail 2212 can also be used. A slide rail 2212 is sleeved on the connecting track 2311 for sliding. The spring is sleeved in the upright post 223, and the upright post 223 is inserted into the connecting hole 232 of the top plate 232. Therefore, the upright post 223 can move relative to the top plate 232, so that the spring is compressed or the elastic potential energy of the spring is released.

[0066] In a possible embodiment, when the limiting member 222 falls into the locking portion 212, the connecting block 2211 is higher than the top of the housing 1.

[0067] When the data cable 32 is pulled out, the limiting member 222 will be in any position of the unlocking portion 211, the locking portion 212 and the second connecting portion 213. When the limiting member 222 moves from the second connecting portion 213 to the locking portion 212, the connecting block 2211 will be lifted. In this embodiment, when the limiting member 222 is located in the locking portion 212, the connecting block 2211 is higher than the top of the housing 1, so that the user can directly observe the position of the connecting block 2211. When the limiting member 222 is located in the unlocking portion 211, the user cannot see the connecting block 2211. The user can judge the position of the second connecting portion 21 where the limiting member 222 is located according to the position of the connecting block 2211. When it is necessary to lock the data cable 32, the data cable 32 is released when the connecting block 2211 can be seen. When it is necessary to wind up the cable, the data cable 32 is released when the connecting block body 221 cannot be seen.

[0068] The data cable telescopic device provided by the above embodiments of the present application has at least the following characteristics:

[0069] 1. When the data cable 32 is pulled out from the cable reel 31, the cable reel 31 drives the rotating shaft 4 to rotate, so that the limiting member 222 moves from the unlocking portion 211 to the second connecting portion 213, then to the locking portion 212, and continuously cycles. When the limiting member 222 is located in the locking portion 212, the data cable 32 is locked and cannot be automatically wound up. When the limiting member 222 is located in the unlocking portion 211, it can be automatically wound up.

[0070] 2. The user can judge whether the limiting member 222 is located in the unlocking portion 211 or the locking portion 212 according to the position of the connecting block 2211, so as to independently choose to lock the data cable 32 or perform automatic cable winding.

[0071] On the other hand, an embodiment of the present application also provides a charging device including the embodiment of the present application. The charging device is charged through the data cable 32 in the data cable telescopic device. The data cable 32 can be locked after being pulled out by a preset length, which is convenient for the user to use and will not cause wear or damage to the data cable 32.

[0072] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A data line expansion device, characterized in that: The invention comprises a housing (1), a locking mechanism (2), a winding structure (3) and a rotating shaft (4); the rotating shaft (4) is rotatably connected to the housing (1); the winding structure (3) and the locking mechanism (2) are arranged on the rotating shaft (4); when the winding structure (3) drives the rotating shaft (4) to rotate in different directions, the locking mechanism (2) can lock or unlock the rotating shaft (4).

2. The data line extension device according to claim 1, characterized in that: The locking mechanism (2) comprises a limiting mechanism (22) and a moving track (21) arranged on the circumferential side wall of the rotating shaft (4); the limiting mechanism (22) is slidably arranged in the moving track (21), and the rotating shaft (4) rotates in a first direction and a second direction in opposite directions; When the rotating shaft (4) is in an unlocked state, the limiting mechanism (22) slides freely relative to the moving track (21), and the rotating shaft (4) can rotate freely along the first direction and the second direction; When the rotating shaft (4) is in a locked state, the moving track (21) limits the relative movement of the limiting mechanism (22), and the rotating shaft (4) is locked and stops rotating.

3. The data line extension device according to claim 2, characterized in that: The motion track (21) comprises an unlocking portion (211) and a locking portion (212); the limiting mechanism (22) comprises a connecting mechanism (221) and a limiting member (222); the limiting member (222) is connected to the connecting mechanism (221) and is at least partially disposed in the motion track (21); When the limiting member (222) moves in the unlocking portion (211), the rotating shaft (4) is in an unlocking state, and the unlocking portion (211) can freely rotate relative to the limiting member (222) along the first direction or the second direction; when the limiting member (222) moves in the locking portion (212), and the rotating shaft (4) rotates along the second direction, the rotating shaft (4) can enter a locking state.

4. The data line extension device according to claim 3, characterized in that: The locking portion (212) and the unlocking portion (211) both extend along the circumference of the rotating shaft (4), and both ends of the locking portion (212) are connected to the unlocking portion (211).

5. The data line extension device according to claim 3, characterized in that: The unlocking portion (211) is an annular groove extending around the side of the rotating shaft (4), and the locking portion (212) is an arcuate groove extending around a portion of the circumference of the side of the rotating shaft (4); the unlocking portion (211) and the locking portion (212) are spaced apart from each other along the axial direction of the rotating shaft (4).

6. The data line extension device according to claim 4, characterized in that: The motion track (21) further comprises a first connecting portion (214) and a second connecting portion (213), wherein two ends of the first connecting portion (214) and the second connecting portion (213) are respectively connected to the locking portion (212) and the unlocking portion (211).

7. The data line extension device according to claim 6, characterized in that: The rotating shaft (4) rotates in a first direction, and the limiting member (222) can enter the unlocking portion (211) from the first connecting portion (214), and can also enter the locking portion (212) from the second connecting portion (213); Wherein, in the radial direction of the rotating shaft (4), the depth of the locking portion (212) is greater than the depth of the second connecting portion (213), and / or a blocking portion (7) is provided at the connection between the locking portion (212) and the second connecting portion (213).

8. The data line extension device according to claim 7, characterized in that: The depth of the second connecting portion (213) is greater than the depth of the unlocking portion (211).

9. The data line extension device according to claim 7, characterized in that: A transition structure (6) is provided at the connection between the first connecting portion (214) and the unlocking portion (211) or the locking portion (212); and / or the second connecting portion (213) is arranged obliquely relative to the unlocking portion (211), the unlocking portion (211) is connected to the side of the second connecting portion (213), the connecting end portion of the second connecting portion (213) and the unlocking portion (211) is partially overlapped with the unlocking portion (211), and a transition structure (6) is provided at the connection between the end portion of the second connecting portion (213) and the unlocking portion (211).

10. The data line extension device according to claim 3, characterized in that: One end of the limiting member (222) is connected to the connecting mechanism (221), and the other end is in contact with the bottom wall of the moving track (21) located in the radial direction of the rotating shaft 4 (); Alternatively, the limiting member (222) is a spring pin, the spring pin comprising a fixed section and a telescopic section, the telescopic section being telescopically connected to the fixed section, the fixed section being fixedly connected to the connecting mechanism (221), and the end of the telescopic section away from the fixed section abutting against a bottom wall in the moving track (21) located in the radial direction of the rotating shaft (4).

11. The data line extension device according to claim 3, characterized in that: It also includes a frame (23) and a driving structure (5), wherein the frame (23) is fixed on the shell (1), the connecting mechanism (221) is movably mounted on the shell (1) or the frame (23), and the two ends of the driving structure (5) are respectively connected to the frame (23) and the connecting mechanism (221), and the driving structure (5) is used to drive the connecting mechanism (221) to move along the axial direction of the rotating shaft (4).

12. The data line extension device according to claim 11, characterized in that: The frame (23) comprises a support column (231) provided with a connecting track (2311) and a top plate (232) arranged on the top of the support column (231); the connecting mechanism (221) is movably mounted on the connecting track (2311); and the driving structure (5) is an elastic member arranged between the top of the connecting mechanism (221) and the top plate (232).

13. The data line extension device according to claim 12, characterized in that: The connecting mechanism (221) comprises a connecting block (2211), a slide rail (2212) and a column (2213); the slide rail (2212) is arranged on both sides of the connecting block (2211); the slide rail (2212) is respectively arranged in the connecting rails (2311) of the two supporting columns (231) arranged opposite to each other; one end of the column (2213) is arranged on the connecting block (2211); the other end of the column (2213) extends into the connecting hole (2321) on the top plate (232); And / or, the driving structure (5) is a spring, the spring is sleeved on the column (2213), and two ends of the spring respectively abut against the connecting block (2211) and the top plate (232).

Images