CN215732585U - Bidirectional random pulling device and bidirectional random pulling data line - Google Patents

Abstract

The utility model relates to the technical field of data lines, in particular to a bidirectional random pulling device and a bidirectional random pulling data line. When the unwrapping wire, the tensile wire rod one end of user, the wire rod is crowded by the crowd under the cooperation of first inside wall and wheel core for the casing is kept away from gradually to the wire rod other end, has solved current two-way flexible data line when tensile wherein one end, and the other end can not be along with corresponding tensile problem, and the simple operation has improved and has used experience.

Description

Bidirectional random pulling device and bidirectional random pulling data line

[ technical field ] A method for producing a semiconductor device

The utility model relates to the technical field of data lines, in particular to a bidirectional random pull device and a bidirectional random pull data line.

[ background of the utility model ]

Along with the continuous improvement of living standard, people often carry electronic product such as cell-phone, computer when going out, for the convenience of charging, people also will carry corresponding data line usually. At present, the conventional data cable is generally a long linear data cable, and the data cable is easy to wind or even tie, so that the retractable data cable appears in the market. However, when one end of the existing bidirectional telescopic data line is stretched, the other end of the existing bidirectional telescopic data line cannot be stretched along with the stretching, and the use is inconvenient.

[ Utility model ] content

The utility model provides a bidirectional random pulling device and a bidirectional random pulling data wire, aiming at solving the problem that when one end of the existing bidirectional telescopic data wire is stretched, the other end of the existing bidirectional telescopic data wire cannot be correspondingly stretched, and the use is inconvenient.

The utility model provides a bidirectional random pulling device, which comprises a shell, a wheel core and a clamping component, wherein the shell is hollow, the wheel core and the clamping component are arranged in the shell, and the wheel core is used for winding wires and rotating relative to the shell; the clamping component is arranged on one side of the shell corresponding to the rotating wheel cover and is matched with the rotating wheel cover to limit the rotation of the wheel core for positioning; a gap exists between the outer periphery of the wheel core and the first inner side wall of the shell, and the gap only allows one layer of wires to pass through; the first inner side wall is a partial side wall with the shortest distance between the side wall of the shell and the wheel core.

Preferably, a transition cavity is arranged between the outer periphery side of the wheel core and the second inner side wall of the shell, and the width of the transition cavity is larger than that of the gap; the second inner side wall and the first inner side wall are adjacent side walls.

Preferably, the second inner side wall is a circular arc-shaped side wall.

Preferably, a through hole for the wire to pass through is formed in the second inner side wall.

Preferably, an edge of the through hole in a thickness direction of the housing is provided with a smooth curved surface.

Preferably, the width of the gap is 1.5-2.5 mm; and/or the width of the transition cavity is 4-10 mm.

Preferably, the housing comprises a first baffle plate, the first baffle plate is arranged between the side wall of the housing and the wheel core, and the first baffle plate and part of the side wall of the housing define the first inner side wall; and/or the shell comprises a second baffle plate, the second baffle plate is arranged between the side wall of the shell and the wheel core, and the second baffle plate and part of the side wall of the shell define the second inner side wall.

Preferably, the clamping assembly comprises an elastic device, a connecting device and a gear, and the runner cover is provided with a runner groove; one end of the connecting device is provided with a bulge matched with the wheel groove, the other end of the connecting device is abutted against the elastic device, one side of the connecting device, which is close to the gear, is also provided with a first lug and a second lug, and the gear is arranged between the first lug and the second lug; two adjacent tooth spaces of the gear have different depths and are respectively defined as a first tooth space and a second tooth space, the first tooth space is meshed with the first lug, and the second tooth space is meshed with the second lug.

The utility model provides another technical scheme for solving the technical problems as follows: a bidirectional random pull data line comprises a wire rod and the bidirectional random pull device; the wire is wound on the wheel core in a multilayer curled mode, and then two ends of the wire are exposed out of the shell.

Preferably, an input port and an output port are respectively arranged at two ends of the wire exposed out of the shell; the output port is one or a plurality of combinations of a MicroUSB interface, a Type-C interface and a Lightning interface.

Compared with the prior art, the bidirectional random pull device and the bidirectional random pull data line provided by the utility model have the following advantages:

1. the bidirectional random pulling device provided by the embodiment of the utility model comprises a shell, a wheel core and a clamping component, wherein the shell is hollow, the wheel core and the clamping component are arranged in the shell, and the wheel core is used for winding a wire and rotating relative to the shell. Wherein, there is the clearance between the wheel core periphery side and the first inside wall of casing, the clearance only allows the one deck wire rod to pass through, can understand, the wire rod winding is that the multilayer curls on the wheel core, and the clearance only allows the setting that the one deck wire rod passes through to make when the unwrapping wire, the tensile wire rod one end of user, the wire rod is crowded under the cooperation of first inside wall and wheel core, make the wire rod other end keep away from the casing gradually, also the user only needs tensile wire rod one end, the other end then can be along with tensile, current two-way flexible data line when tensile wherein one end has been solved, the other end can not be along with corresponding tensile problem, the operation is convenient, use experience has been improved. In addition, wheel core one side is equipped with the runner lid, the screens subassembly locate the casing correspond on the inner wall of runner lid and with the runner lid cooperation, can restrict the wheel core when the unwrapping wire and rotate and fix a position, simultaneously because the effect of the inside elastic component of wheel core is withdrawed the wire rod when receiving the line, further improved and used experience.

2. In the bidirectional random-pulling device provided by the embodiment of the utility model, the transition cavity is formed between the outer peripheral side of the wheel core and the second inner side wall of the shell, the second inner side wall and the first inner side wall are adjacent side walls, the width of the transition cavity is larger than the width of the gap, namely, the wire is provided with a buffering space in the transition cavity, when a user pulls one end of the wire, the wire is firstly bent in the transition cavity and touches the second inner side wall, the second inner side wall gives an acting force to the wire to move along the gap direction between the outer peripheral side of the wheel core and the first inner side wall of the shell, and meanwhile, the first inner side wall and the wheel core are matched to squeeze the wire entering the gap, so that the other end of the wire is gradually far away from the shell, the transition cavity is matched with the gap, the wire is pulled more smoothly, and the pause feeling of the wire during the wire pulling is reduced.

3. In the bidirectional random-pulling device provided by the embodiment of the utility model, the second inner side wall is a circular arc-shaped side wall, and the circular arc-shaped side wall can be matched with the wire bent in the transition cavity, so that when the wire touches the second inner side wall, the acting force given to the wire by the second inner side wall can enable the wire to accurately move along the gap direction between the outer peripheral side of the wheel core and the first inner side wall, and the blocking feeling of the wire during the wire pulling process is further reduced.

4. In the bidirectional random pulling device provided by the embodiment of the utility model, the second inner side wall is provided with the through hole for the wire to pass through, so that the wire is wound on the wheel core and then is exposed out of the shell through the through hole, and the through hole is arranged on the second inner side wall, so that when the wire is discharged out of the shell, the wire has a buffering space in the transition cavity due to the existence of the transition cavity, and the wire is extruded from the gap direction between the outer peripheral side of the wheel core and the first inner side wall and then is smoothly discharged out of the through hole gradually through the buffering of the transition cavity. In addition, the edge of the through hole along the thickness direction of the shell is set to be a smooth curved surface, so that the wire is prevented from being scratched by the edge of the through hole when the wire is contacted with the edge of the through hole, especially when a user pulls out one end of the wire, the acting force of the wire and the edge of the through hole is large, and the smooth curved surface can prevent the wire from being scratched by the edge of the through hole to the maximum extent; secondly, smooth curved surface can play the guide effect, and when the tensile wire rod one end of user, the wire rod makes the wire rod other end keep away from the casing gradually under the guide effect of smooth curved surface.

5. In the bidirectional random-pulling device provided by the embodiment of the utility model, the width of the gap between the outer periphery side of the wheel core and the first inner side wall is limited to 1.5-2.5mm, and in the width range, the gap can be ensured to allow only one layer of wire to pass, and the wire can be extruded under the matching of the first inner side wall and the wheel core when the wire passes through the gap, so that the other end of the wire is gradually far away from the shell. Meanwhile, the width range of the gap enables the overall appearance of the shell to be more attractive, and the bidirectional random pulling device is smaller and more exquisite.

6. In the bidirectional random pulling device provided by the embodiment of the utility model, the width of the transition cavity between the outer peripheral side of the wheel core and the second inner side wall of the shell is limited to 4-10mm, so that a buffer space for bending the wire can be ensured in the width range, the wire can be prevented from being blocked in the transition space due to overlarge buffer space to influence the stretching of the wire, and the smooth degree of the stretching is improved. In addition, the width range of the transition cavity can enable the overall appearance of the shell to be more attractive, and the bidirectional random pulling device is smaller.

7. In the bidirectional random-pulling device provided by the embodiment of the utility model, when the size of the shell is larger, the first baffle plate is additionally arranged between the side wall of the shell and the wheel core, and the first baffle plate and part of the side wall of the shell define the first inner side wall together, so that the purpose of extruding the wire rod entering the gap out of the shell is achieved. Similarly, the second baffle can be additionally arranged between the side wall of the shell and the wheel core, and the second inner side wall is defined by the second baffle and the partial side wall of the shell together, so that the aim of providing a buffer space for the wire rod entering the transition cavity is fulfilled.

8. In the bidirectional random pulling device provided by the embodiment of the utility model, when a user needs to pay off, the user pulls one end of the wire to drive the rotating wheel cover to rotate, meanwhile, the protrusion on the connecting device is separated from the wheel groove and enables the connecting device to deviate from the original position, meanwhile, the elastic device gives a restoring acting force to the connecting device, when the user releases the hand, the elastic part in the wheel core resets to drive the wheel core to rotate and recover the stretched wire, at the moment, the elastic device drives the connecting device to reset, the second protrusion on the connecting device is meshed with the second tooth groove of the gear, the connecting device is fixed, meanwhile, the protrusion of the connecting device swings at a certain angle and stops in the wheel groove of the rotating wheel cover, so that the rotating wheel cover stops rotating, and finally, the wheel core stops rotating to play a role in positioning.

When a user needs to take up wires, the user pulls one end of the wire rod again to drive the rotating wheel cover to rotate again, meanwhile, the protrusion on the connecting device is separated from the wheel groove again to enable the connecting device to deviate from the original position again, meanwhile, the elastic device gives a restoring acting force to the connecting device, when the user releases hands, the elastic part in the wheel core resets, meanwhile, the elastic device drives the connecting device to reset, the first protrusion on the connecting device is meshed with the first tooth groove of the gear, the connecting device is fixed, however, because the depths of the first tooth groove and the second tooth groove are different, when the connecting device is fixed, the swinging angle of the protrusion on the connecting device is larger than the swinging angle of the protrusion during paying off, the protrusion stops outside the wheel groove of the rotating wheel cover and cannot prevent the rotating wheel cover from rotating, finally, the stretched wire rod is completely withdrawn under the action of the elastic part, and the function of one-time taking-up is realized, simple and convenient, and high working efficiency.

9. The bidirectional pull-at-will data line provided by the embodiment of the utility model has the same beneficial effects as the bidirectional pull-at-will device, and is not described in detail herein. In addition, in the bidirectional random pull data line provided by the embodiment of the utility model, the two ends of the wire exposed out of the shell are respectively provided with the input port and the output port, and the output port is one or more combinations of a micro USB interface, a Type-C interface and a Lightning interface, so that especially when the two ports are combined in various ways, the bidirectional random pull data line can be used for charging a plurality of external devices at the same time, and the practicability of the bidirectional random pull data line is greatly improved.

[ description of the drawings ]

Fig. 1 is an exploded view of a bidirectional pull-at-will device according to a first embodiment of the present invention.

Fig. 2 is a schematic perspective view of an elastic member of a bi-directional arbitrary pulling device according to a first embodiment of the present invention.

Fig. 3 is a schematic partial structural diagram of a bidirectional pull-at-will device according to a first embodiment of the present invention.

Fig. 4 is a schematic perspective view of a housing of a bi-directional pull-freely device according to a first embodiment of the present invention.

Fig. 5 is an enlarged schematic view of a in fig. 3.

Fig. 6 is a view showing an example of the engagement between the detent assembly and the wheel core of the bidirectional pull-freely device according to the first embodiment of the present invention.

Fig. 7 is a schematic perspective view of a connection device of a bi-directional pull-freely device according to a first embodiment of the present invention.

Fig. 8 is a schematic perspective view of a gear of a bidirectional casual pulling apparatus according to a first embodiment of the present invention.

Fig. 9 is a schematic perspective view of a bidirectional data line according to a second embodiment of the present invention.

The attached drawings indicate the following:

1. a bidirectional random pulling device; 2. a wire rod; 3. pulling the data line in two directions; 4. a wire rod;

11. a housing; 13. a wheel core; 14. a clamping component; 41. an input port; 42. an output port;

111. an upper shell; 112. a lower case; 113. a gap; 114. a transition cavity; 115. a through hole; 116. fixing a column; 131. an elastic member; 132. a rotating wheel cover; 141. an elastic device; 142. a connecting device; 143. a gear;

1111. a top cover; 1112. a second recess; 1121. a base plate; 1122. a first inner side wall; 1123. a second inner side wall; 1124. a first notch; 1321. a wheel groove; 1421. a protrusion; 1422. a convex column; 1423. a first bump; 1424. a second bump; 1431. a first tooth slot; 1432. a second gullet.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the utility model and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

Referring to fig. 1, a first embodiment of the present invention provides a bidirectional arbitrary pulling device 1, wherein the bidirectional arbitrary pulling device 1 includes a housing 11, a wheel core 13 and a locking component 14. Wherein, casing 11 is inside hollow, and wheel core 13 and screens subassembly 14 are located inside casing 11, and wheel core 13 can supply wire 2 to twine and relative casing 11 to rotate, and at this moment, wire 2 twines and is the multilayer after curling both ends all expose from casing 11 on wheel core 13, and wheel core 13 is inside to be equipped with elastic component 131, and elastic component 131 is used for providing the resilience of gyration for wheel core 13, and screens subassembly 14 is used for fixing a position in order to prevent that wheel core 13 from rotating for wheel core 13.

Referring to fig. 1, in particular, the housing 11 is formed by detachably connecting an upper housing 111 and a lower housing 112, the upper housing 111 includes a top cover 1111 and a sidewall extending along the periphery of the top cover 1111, and the lower housing 112 includes a bottom plate 1121 and a sidewall extending along the periphery of the bottom plate 1121. The wheel core 13 is arranged in the lower shell 112, the clamping assembly 14 is arranged in the upper shell 111, the area enclosed by the side wall of the upper shell 111 is slightly larger than the area enclosed by the side wall of the lower shell 112, and when the upper shell 111 and the lower shell 112 are spliced, the side wall of the upper shell 111 is sleeved on the outer peripheral side of the side wall of the lower shell 112. Of course, when the upper case 111 and the lower case 112 are spliced, the side wall of the upper case 111 may be sleeved on the inner circumferential side of the side wall of the lower case 112, and the utility model is not limited in this respect.

The splicing manner of the upper shell 111 and the lower shell 112 in the embodiment of the present invention is not particularly limited, and may be clamping, bonding, or magnetic connection. Preferably, in the embodiment of the present invention, the upper case 111 and the lower case 112 are spliced by a snap-fit.

Referring to fig. 1 and 2, specifically, the elastic member 131 is a spring, the lower case 112 is provided with a fixing post 116, one end of the spring is positioned on the fixing post 116, the other end of the spring is positioned on the core 13, and when the core 13 rotates, the spring can give a restoring force to the core 13 so that the core 13 has a tendency of returning. Of course, the elastic member 131 may be an element having an elastic function, such as a spring block, as long as it can provide a restoring force to make the wheel core 13 have a tendency to return when the wheel core 13 rotates.

For convenience of understanding, the present invention is described by taking the case where the side wall of the upper case 111 is fitted over the outer circumferential side of the side wall of the lower case 112 as an example, and the configuration should not be limited thereto.

Referring to fig. 3, specifically, the lower shell 112 includes two opposite first inner sidewalls 1122 and two opposite second inner sidewalls 1123, where the first inner sidewalls 1122 are the partial sidewalls of the lower shell 112 with the shortest distance from the wheel core 13, and the first inner sidewalls 1122 and the second inner sidewalls 1123 are adjacent sidewalls. A gap 113 is provided between the outer peripheral side of the core 13 and the first inner side wall 1122, and the gap 113 allows only one layer of the wire 2 to pass therethrough. It can be understood that wire 2 winding is the multilayer and curls on core wheel 13, and clearance 113 only allows the setting that one deck wire rod 2 passes through to make when the unwrapping wire, the tensile wire rod 2 one end of user, wire rod 2 is crowded by the rejection under the cooperation of first inside wall 1122 and core wheel 13, make the casing 11 be kept away from gradually to the wire rod 2 other end, also the user only needs tensile wire rod 2 one end, the other end then can be along with tensile, it is when one end wherein stretching to have solved current two-way flexible data line, the other end can not be along with corresponding tensile problem, the operation is convenient, use experience is improved.

Further, a transition cavity 114 exists between the outer peripheral side of the wheel core 13 and the second inner side wall 1123, and a width W (W shown in fig. 3) of the transition cavity 114 is larger than a width W (W shown in fig. 3) of the gap 113. Through the setting, wire 2 has the space of buffering in transition cavity 114, when the user stretches wire 2 one end, wire 2 is crooked and touch second inside wall 1123 in transition cavity 114 earlier, second inside wall 1123 gives wire 2 the effort that moves along the direction of the clearance 113 between wheel core 13 periphery side and the first inside wall 1122, first inside wall 1122 and the cooperation of wheel core 13 are crowded and are got into the wire 2 of clearance 113 simultaneously, make the wire 2 other end keep away from casing 11 gradually, transition cavity 114 and the cooperation of clearance 113, make the drawing of wire 2 more smooth, the card that reduces wire 2 when tensile feels.

Of course, as a modification, when the housing 11 is large in size, a first baffle (not shown) may be provided between the side wall of the lower case 112 and the wheel core 13, and at this time, the first baffle and a part of the side wall of the lower case 112 define the first inner side wall 1122, so as to achieve the purpose of pushing the wire 2 entering the gap 113 out of the housing 11. Similarly, a second baffle (not shown) may be disposed between the sidewall of the lower shell 112 and the wheel core 13, where the second baffle and a portion of the sidewall of the lower shell 112 define a second inner sidewall 1123 for providing a buffer space for the wire 2 entering the transition cavity 114.

Alternatively, the width w of the gap 113 is 1.5-2.5mm, and it can be understood that, in general, the thickness of the wire 2 is about 1.5mm, and by limiting the width of the gap 113, it can be ensured that only one layer of the wire 2 is allowed to pass through the gap 113, and when the wire 2 passes through the gap 113, the wire 2 is squeezed under the cooperation of the first inner side wall 1122 and the wheel core 13, so that the other end of the wire 2 gradually gets away from the housing 11. Meanwhile, the width range of the gap 113 can make the overall appearance of the housing 11 more beautiful, so that the bidirectional pull-up device 1 is smaller. Specifically, the width w of the gap 113 may be 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, or 2.5 mm. Preferably 2 mm.

Optionally, the width W of the transition cavity 114 is 4-10mm, and by limiting the width of the transition cavity 114, a buffer space for bending the wire 2 can be ensured, and the wire 2 can be prevented from being blocked in the transition cavity 114 due to an excessively large buffer space to affect the stretching of the wire 2, so that the smooth degree of the stretching is improved. In addition, the width of the transition cavity 114 can make the overall appearance of the housing 11 more beautiful, so that the bidirectional pull-only device 1 is smaller. Specifically, the width W of the transition cavity 114 may be 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, or 10 mm. Preferably 5 mm.

Referring to fig. 3, specifically, the second inner sidewall 1123 is an arc-shaped sidewall, and the arc-shaped sidewall can match with the wire 2 bent in the transition cavity 114, so that when the wire 2 touches the second inner sidewall 1123, the force applied by the second inner sidewall 1123 to the wire 2 can accurately move the wire 2 along the direction of the gap 113 between the outer circumferential side of the wheel core 13 and the first inner sidewall 1122, and the seizure feeling of the wire 2 during stretching is further reduced.

Specifically, the housing 11 is an ellipsoid or an ellipsoid-like body, that is, the top cover 1111 and the bottom plate 1121 are elliptical or an ellipsoid-like body, and on the premise of ensuring overall beauty, when the wheel core 13 is placed inside the housing 11, a certain difference is formed between the distance between the wheel core 13 and the adjacent inner wall of the housing 11, wherein a certain buffer space is provided for the wire 2 as the transition cavity 114 at a larger distance, the wire 2 is extruded out of the housing as the gap 113 at a smaller distance, and meanwhile, the inner wall of the ellipsoid or the ellipsoid-like body is a circular arc-shaped curved surface, so that the blocking and pause feeling of the wire 2 during stretching can be reduced. Of course, the housing 11 may also be a cylinder, a cube, a sphere, or other shapes, which is not limited in the present invention.

Referring to fig. 1 and fig. 4, further, a first notch 1124 is formed on a second inner sidewall 1123 of the lower shell 112, and a second notch 1112 is formed on the upper shell 111 corresponding to the first notch 1124; when the upper shell 111 and the lower shell 112 are spliced, the first notch 1124 and the second notch 1112 define a through hole 115, and the wire 2 is wound on the wheel core 13 and then exposed out of the shell 11 through the through hole 115. Due to the arrangement mode, when the wire 2 is discharged out of the shell 11, due to the existence of the transition cavity 114, the wire 2 has a buffering space in the transition cavity 114, and after the wire 2 is extruded from the gap 113, the wire is smoothly and gradually discharged from the through hole 115 through the buffering of the transition cavity 114.

Referring to fig. 5, further, the edge of the through hole 115 along the thickness direction of the housing 11 is set to be a smooth curved surface q (q shown in fig. 5), that is, the side edge of the first notch 1124 is set to be a smooth curved surface q, so as to prevent the wire 2 from being scratched by the edge of the through hole 115 when the wire 2 contacts the edge of the through hole 115, especially when a user pulls one end of the wire 2, the force of the wire 2 against the edge of the through hole 115 is large, and the smooth curved surface q can prevent the wire 2 from being scratched by the edge of the through hole 115 to the greatest extent; the smooth curved surface q can play a role in guiding, and when a user stretches one end of the wire 2, the wire 2 enables the other end of the wire 2 to be gradually away from the shell 11 under the guiding effect of the smooth curved surface q.

Referring to fig. 6-8, specifically, a rotating wheel cover 132 is disposed on one side of the wheel core 13, and the locking assembly 14 is disposed on one side of the housing 11 corresponding to the rotating wheel cover 132 and cooperates with the rotating wheel cover 132 to limit the rotation of the wheel core 13 for positioning.

More specifically, the locking assembly 14 includes an elastic device 141, a connecting device 142 and a gear 143, wherein the wheel cover 132 is provided with a wheel slot 1321, one end of the connecting device 142 is provided with a protrusion 1421 matching with the wheel slot 1321, the other end of the connecting device 142 abuts against the elastic device 141 through a convex pillar 1422, one side of the connecting device 142 close to the gear 143 is further provided with a first protrusion 1423 and a second protrusion 1424, and the gear 143 is disposed between the first protrusion 1423 and the second protrusion 1424. The depth of two adjacent tooth spaces of the gear 143 is different, and the two adjacent tooth spaces are respectively defined as a first tooth space 1431 and a second tooth space 1432, the first tooth space 1431 is engaged with the first protrusion 1423, and the second tooth space 1432 is engaged with the second protrusion 1424, for the convenience of understanding, the utility model is described by the depth (D shown in fig. 8) of the first tooth space 1431 being greater than the depth (D shown in fig. 8) of the second tooth space 1432, which should not be construed as a limitation.

The number of the wheel slots 1321, the first tooth slots 1431 and the second tooth slots 1432 in the embodiment of the present invention is not particularly limited, and specifically, in the embodiment of the present invention, the number of the wheel slots 1321, the first tooth slots 1431 and the second tooth slots 1432 is 3, so that 3 shift positions for the wire 2 to be stretched outwards can be realized, and different requirements of a user on the wire length can be met.

Alternatively, the elastic means 141 may be a spring or a leaf spring. Specifically, in the embodiment of the present invention, the elastic device 141 is a spring with two ends fixed on the upper shell 111, the middle portion of the spring has an elastic function, and one end of the connecting device 142 away from the protrusion 1421 abuts against the middle portion of the spring through a protruding pillar 1422.

In summary, when a user needs to pay line, the user pulls one end of the wire 2 to drive the wheel cover 132 to rotate, the protrusion 1421 on the connecting device 142 disengages from the wheel slot 1321 and makes the connecting device 142 deviate from the original position, and the elastic device 141 provides a restoring force to the connecting device 142, when the user releases his hand, the elastic member 131 inside the wheel core 13 resets to drive the wheel core 13 to rotate and recover the stretched wire 2, however, the elastic device 141 drives the connecting device 142 to reset at this time, the second protrusion 1424 on the connecting device 142 engages with the second tooth slot 1432 of the gear 143, the connecting device 142 is fixed, the protrusion 1421 of the connecting device 142 swings through a certain angle, and the protrusion 1421 stops in the wheel slot 1321 of the wheel cover 132, so that the wheel cover 132 stops rotating, and finally the wheel core 13 stops rotating, and plays a role in positioning.

When the user needs to take up the wire, the user pulls one end of the wire 2 again to drive the wheel cover 132 to rotate again, the protrusion 1421 on the connecting device 142 disengages from the wheel slot 1321 again to make the connecting device 142 deviate from the original position again, at the same time, the elastic device 141 gives a restoring force to the connecting device 142, when the user releases his hand, the elastic member 131 inside the wheel core 13 resets, at the same time, the elastic device 141 drives the connecting device 142 to reset, the first protrusion 1423 on the connecting device 142 engages with the first tooth slot 1431 of the gear 143, the connecting device 142 is fixed, however, since the depth of the first tooth slot 1431 is greater than the depth of the second tooth slot 1432, when the connecting device 142 is fixed, the angle that the protrusion 1421 on the connecting device 142 swings is greater than the angle that the protrusion 1421 swings when the wire is paid off, and the protrusion 1421 stops outside the wheel slot 1321 of the wheel cover 132, the rotation of the wheel cover 132 cannot be prevented, finally, under the action of the elastic part 131, all the stretched wires 2 are retracted, so that the function of one-time wire winding is realized, and the wire winding machine is simple and convenient and has high working efficiency.

Referring to fig. 9, a second embodiment of the present invention provides a bidirectional data cable 3 for data transmission or charging to an external device, where the bidirectional data cable 3 includes a wire 4 and the bidirectional pull-freely device 1 of the first embodiment. Wherein, the wire 4 is wound on the wheel core of the bidirectional random pulling device 1 in a multilayer way, and both ends of the wire are exposed out of the shell of the bidirectional random pulling device 1 after the wire is curled.

Further, one end of the wire 4 exposed out of the casing of the bidirectional random-pulling device 1 is provided with an input port 41, the input port 41 is used for connecting a plug or a charging port to receive power or data, the other end of the wire 4 exposed out of the casing of the bidirectional random-pulling device 1 is provided with an output port 42, and the output port 42 is used for charging external equipment or transmitting data. Specifically, the input port 41 may be one of a USB interface and a Type-C interface; output port 42 can be one or more combination in micro USB interface, Type-C interface, the Lightning interface, and during the multiple combination especially for two-way data line 3 of pulling at will can charge for a plurality of external equipment simultaneously, has greatly improved the two-way practicality of pulling at will data line 3.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The bidirectional random pulling device is characterized in that: the bidirectional random pulling device comprises a shell, a wheel core and a clamping component, wherein the shell is hollow, the wheel core and the clamping component are arranged in the shell, and the wheel core is used for winding a wire and rotating relative to the shell;

the clamping component is arranged on one side of the shell corresponding to the rotating wheel cover and is matched with the rotating wheel cover to limit the rotation of the wheel core for positioning;

a gap exists between the outer periphery of the wheel core and the first inner side wall of the shell, and the gap only allows one layer of wires to pass through; the first inner side wall is a partial side wall with the shortest distance between the side wall of the shell and the wheel core.

2. The bi-directional shuffle device as recited in claim 1, further comprising: a transition cavity is arranged between the outer peripheral side of the wheel core and the second inner side wall of the shell, and the width of the transition cavity is larger than that of the gap; the second inner side wall and the first inner side wall are adjacent side walls.

3. The bi-directional shuffle device as recited in claim 2, further comprising: the second inner side wall is an arc-shaped side wall.

4. The bi-directional shuffle device as recited in claim 2, further comprising: and a through hole for the wire to pass through is formed in the second inner side wall.

5. The bi-directional shuffle device as recited in claim 4, further comprising: the edge of the through hole along the thickness direction of the shell is set to be a smooth curved surface.

6. The bi-directional shuffle device as recited in claim 2, further comprising: the width of the gap is 1.5-2.5 mm; and/or the width of the transition cavity of the bidirectional random pulling device is 4-10 mm.

7. The bi-directional shuffle device as recited in claim 2, further comprising: the shell comprises a first baffle plate, the first baffle plate is arranged between the side wall of the shell and the wheel core, and the first baffle plate and part of the side wall of the shell define a first inner side wall;

and/or the shell comprises a second baffle plate, the second baffle plate is arranged between the side wall of the shell and the wheel core, and the second baffle plate and part of the side wall of the shell define the second inner side wall.

8. The bi-directional shuffle device as recited in claim 1, further comprising: the clamping assembly comprises an elastic device, a connecting device and a gear, and a wheel groove is formed in the rotating wheel cover;

one end of the connecting device is provided with a bulge matched with the wheel groove, the other end of the connecting device is abutted against the elastic device, one side of the connecting device, which is close to the gear, is also provided with a first lug and a second lug, and the gear is arranged between the first lug and the second lug; two adjacent tooth spaces of the gear have different depths and are respectively defined as a first tooth space and a second tooth space, the first tooth space is meshed with the first lug, and the second tooth space is meshed with the second lug.

9. A two-way random pull data line, its characterized in that: the bidirectional random access data line comprises a wire and the bidirectional random access device as set forth in any one of claims 1-8; the wire is wound on the wheel core in a multilayer curled mode, and then two ends of the wire are exposed out of the shell.

10. The bidirectional arbitrage data line of claim 9, wherein: two ends of the wire exposed out of the shell are respectively provided with an input port and an output port;

the output port is one or a plurality of combinations of a MicroUSB interface, a Type-C interface and a Lightning interface.

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