Telescopic data line

Abstract

The utility model provides a telescopic data line. The telescopic data line comprises a housing, a reel, a first gear, a second gear, a transmission member, a first elastic member and a second elastic member. The data line is wound on the peripheral side of the reel, the reel is rotationally connected to the shell along a first rotating shaft, and the reel is provided with a coil spring; the reel drives the first gear to coaxially rotate; the first gear and the second gear are in transmission connection through a transmission part, and the rotation direction of the first gear is opposite to that of the second gear and the transmission part; one end of the first elastic piece is fixed to the shell, the other end of the first elastic piece is fixed to one side of the transmission piece, one end of the second elastic piece is fixed to the shell, the other end of the second elastic piece is fixed to the other side of the transmission piece, and the first elastic piece and the second elastic piece provide reset force enabling the transmission piece to rotate in the first direction; the second gear is provided with a locking structure, and in the process that the transmission part and the second gear rotate in the first direction, when the transmission part is connected to the locking structure, the locking structure limits the transmission part and the second gear to continuously rotate in the first direction.

Description

Technical Field

[0001] The utility model belongs to the technical field of electronic equipment charging, and in particular relates to a retractable data cable. Background Art

[0002] In the field of electronic device charging, long data cables are often used for long-distance connections. However, when storing and organizing long data cables, they need to be manually wound, which makes them difficult to collect and easy to get tangled or even knotted. In order to facilitate organization, retractable data cables have emerged. Retractable data cables are generally equipped with a coil spring, which can drive the charging cable to automatically retract. At the same time, a switch structure is provided to control the retraction and positioning of the charging cable. However, this requires the operator to manually operate the switch structure, which is cumbersome. Utility Model Content

[0003] The technical purpose of the utility model is to provide a retractable data cable, aiming to solve the technical problem that the retractable data cable in the related art requires a manual operation switch structure, which is relatively cumbersome.

[0004] To solve the above technical problems, the utility model is implemented as follows: a retractable data cable, comprising: a housing, a winding wheel, a first gear, a second gear, a transmission member, a first elastic member and a second elastic member; the data cable is wound around the outer peripheral side of the winding wheel, the winding wheel is rotatably connected to the housing along a first rotating shaft, and the winding wheel is provided with a coil spring; the winding wheel is used to drive the first gear to rotate coaxially; the first gear and the second gear are connected through the transmission member, and the rotation direction of the first gear is opposite to the rotation direction of the second gear and the transmission member; one end of the first elastic member is fixed to the housing and the other end is fixed to one side of the transmission member, one end of the second elastic member is fixed to the housing and the other end is fixed to the other side of the transmission member, and the first elastic member and the second elastic member are both used to provide a reset force for rotating the transmission member in the first direction; the second gear is provided with a locking structure, and during the rotation of the transmission member and the second gear in the first direction, when the transmission member is connected to the locking structure, the locking structure is used to limit the transmission member and the second gear from continuing to rotate in the first direction.

[0005] Further, the transmission member rotates along the second rotating shaft; a first fixing structure and a second fixing structure are provided on a side of the transmission member away from the second rotating shaft, and the first fixing structure and the second fixing structure are provided at intervals along the circumference of the transmission member;

[0006] The housing is provided with a first connecting structure on a side of the first fixing structure away from the second rotating shaft, one end of the first elastic member is fixedly assembled to the first fixing structure and the other end is fixedly assembled to the first connecting structure;

[0007] The housing is provided with a second connection structure on a side of the first fixing structure away from the second rotating shaft, and one end of the second elastic member is fixedly assembled to the second fixing structure and the other end is fixedly assembled to the second connection structure.

[0008] Furthermore, an extension line of the first elastic member and an extension line of the second elastic member intersect, and the intersection point is located on a side of the first fixing structure away from the first connecting structure.

[0009] Furthermore, the first elastic member is a spring, and the spring has a first connecting end, and the first connecting end is fixedly assembled to the first fixing structure.

[0010] Furthermore, the first fixing structure comprises a fixing column arranged at the edge of the transmission member and parallel to the axial direction of the transmission member, and the first connecting end is provided with a ferrule, and the ferrule is sleeved on the fixing column;

[0011] The outer circumference of the fixing column is in contact with the inner circumference of the ferrule; or, the fixing column is provided with a clamping groove along the circumferential direction, and the ferrule is clamped in the clamping groove.

[0012] Further, the first fixing structure includes a connecting portion arranged on the side wall of the transmission member, the connecting portion is bent toward the wall of the transmission member to form an assembly space, the connecting portion has a first end and a second end, the first end is connected to the wall of the transmission member, and there is a preset gap between the second end and the wall of the transmission member, and the first connecting end is provided with a ring, and the ring is fixedly assembled in the assembly space through the preset gap.

[0013] Furthermore, the first gear includes a plurality of first tooth grooves arranged at intervals, and a first convex portion protrudes from a side of the transmission member close to the first gear, and the first convex portion can be engaged with the first tooth groove, so that the first gear drives the transmission member to rotate.

[0014] Furthermore, a plurality of second tooth grooves are formed on the circumferential side of the second gear, and the transmission member protrudes with a second convex portion and a third convex portion, and the second convex portion and the third convex portion are distributed on both sides of the second gear; the second convex portion can abut against the groove wall of the second tooth groove, so that the transmission member drives the second gear to rotate along the second direction; the third convex portion can abut against the groove wall of the second tooth groove, so that the transmission member drives the second gear to rotate along the first direction; the first direction and the second direction are opposite.

[0015] Furthermore, a plurality of third tooth grooves are formed on the circumferential side of the second gear, and the second tooth grooves and the third tooth grooves are alternately arranged; the locking structure includes a plurality of locking parts, and the locking parts are arranged on the third tooth grooves, and the locking parts and the third tooth grooves correspond one to one; the third convex part can abut against the locking part to limit the transmission member from continuing to rotate along the first direction, and the second convex part can abut against the locking part to limit the transmission member and the second gear from continuing to rotate along the second direction.

[0016] Compared with the related art, the telescopic data cable in the utility model has the following beneficial effects:

[0017] In the utility model, the data cable is wound around the outer peripheral side of the winding wheel, so when the data cable is pulled outward from the housing, the winding wheel and the first gear can be driven to rotate relative to the housing in the first direction. At the same time, the first gear drives the transmission member to rotate in the second direction (the second direction is the opposite direction of the first direction), and the transmission member drives the second gear to rotate in the second direction. After being pulled to a certain length, the data cable is released again. At this time, there is no other external force on the data cable, and the transmission member rotates in the opposite direction under the action of the reset force of the elastic member. At this time, the transmission member drives the second gear to rotate in the first direction; the first gear and the winding wheel also rotate in the opposite direction under the action of the reset force of the winding spring. At this time, the winding wheel and the first gear rotate in the second direction, and the data cable automatically retracts. During the process of the winding wheel rotating in the second direction and the transmission member and the second gear rotating in the first direction, that is, during the process of the data line automatically retracting, when the transmission member is not connected to the locking structure, the data line is completely retracted; but when the transmission member is connected to the locking structure, due to the action of the locking structure, the transmission member and the second gear cannot continue to rotate in the first direction, and the first gear and the winding wheel cannot continue to rotate in the second direction under the action of the transmission member. At this time, only the data line is partially retracted automatically, the winding wheel cannot continue to reel in, and the device is in a locked state. When unlocking, the data line can be pulled to make the winding wheel and the first gear rotate in the opposite direction of the second direction (i.e., the first direction), and the transmission member rotates in the opposite direction of the first direction (i.e., the second direction) driven by the first gear, and the transmission member and the locking structure are separated. That is, unlocking can be achieved by pulling the data line again.

[0018] The utility model can realize the extension and locking of the data line through the locking structure, the first elastic member and the second elastic member. The whole process only needs to pull or release the data line, and there is no need to set a switch structure or operate the switch structure. The structure is simple and the operation is convenient. Furthermore, since two elastic members are provided to act on the transmission member, the reset force of the transmission member can be increased during the retraction of the data line, so that the data line can be better retracted, and the convenience of using the device is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the retractable data cable in the embodiment of the utility model;

[0021] Figure 2 This is a first cross-sectional view of the telescopic data cable in the embodiment of the utility model;

[0022] Figure 3 It is a second cross-sectional view of the retractable data cable in the first embodiment of the utility model;

[0023] Figure 4 It is a structural schematic diagram of the first fixing structure in the second embodiment of the present utility model.

[0024] In the accompanying drawings, each figure mark represents: 1. shell; 2. first gear; 3. second gear; 31. locking portion; 4. transmission member; 41. first fixed structure; 411. first fixed column; 412. connecting portion; 4121. first end; 4122. second end; 4123. assembly space; 42. wall; 43. first protrusion; 44. second protrusion; 45. third protrusion; 5. spring; 51. first connecting end. DETAILED DESCRIPTION

[0025] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the utility model, and cannot be understood as limiting the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] See also Figure 1-4 The embodiment of the utility model provides a retractable data cable, comprising: a housing 1, a winding wheel, a first gear 2, a second gear 3, a transmission member 4, a first elastic member and a second elastic member; the data cable is wound around the outer peripheral side of the winding wheel, the winding wheel is connected to the housing 1 along a first rotating shaft, and the winding wheel is provided with a coil spring; the winding wheel is used to drive the first gear 2 to rotate coaxially; the first gear 2 and the second gear 3 are connected through the transmission member 4, and the rotation direction of the first gear 2 is opposite to the rotation direction of the second gear 3 and the transmission member 4; one end of the first elastic member is fixed to the housing 1 and the other end is fixed to one side of the transmission member 4, one end of the second elastic member is fixed to the housing 1 and the other end is fixed to the other side of the transmission member 4, and the first elastic member and the second elastic member are both used to provide a reset force to rotate the transmission member 4 along the first direction; the second gear 3 is provided with a locking structure, and in the process of the transmission member 4 and the second gear 3 rotating along the first direction, when the transmission member 4 is connected to the locking structure, the locking structure is used to limit the transmission member 4 and the second gear 3 from continuing to rotate along the first direction.

[0029] In the present invention, the data cable is wound around the outer peripheral side of the winding wheel. Therefore, when the data cable is pulled outward from the housing 1, the winding wheel and the first gear 2 can be driven to rotate relative to the housing 1 in the first direction. At the same time, the first gear 2 drives the transmission member 4 to rotate in the second direction (the second direction is the opposite direction of the first direction), and the transmission member 4 drives the second gear 3 to rotate in the second direction. After being pulled to a certain length, the data cable is released again. At this time, there is no other external force on the data cable. The transmission member 4 rotates in the opposite direction under the action of the reset force of the elastic member. At this time, the transmission member 4 drives the second gear 3 to rotate in the first direction; the first gear 2 and the winding wheel also rotate in the opposite direction under the action of the reset force of the winding spring. At this time, the winding wheel and the first gear 2 rotate in the second direction, and the data cable automatically retracts. During the process of the winding wheel rotating in the second direction and the transmission member 4 and the second gear 3 rotating in the first direction, that is, during the process of the data line automatically retracting, when the transmission member 4 is not connected to the locking structure, the data line is completely retracted; but when the transmission member 4 is connected to the locking structure, due to the action of the locking structure, the transmission member 4 and the second gear 3 cannot continue to rotate in the first direction, and the first gear 2 and the winding wheel cannot continue to rotate in the second direction under the action of the transmission member 4. At this time, only the data line is partially retracted automatically, the winding wheel cannot continue to reel in, and the device is in a locked state. When unlocking, the data line can be pulled to make the winding wheel and the first gear 2 rotate in the opposite direction of the second direction (i.e., the first direction), and the transmission member 4 rotates in the opposite direction of the first direction (i.e., the second direction) driven by the first gear 2, and the transmission member 4 and the locking structure are separated. That is, by pulling the data line again, unlocking can be achieved.

[0030] The utility model can realize the extension and locking of the data line through the locking structure, the first elastic member and the second elastic member. The whole process only needs to pull or release the data line, and there is no need to set a switch structure or operate the switch structure. The structure is simple and the operation is convenient. Furthermore, since two elastic members are provided to act on the transmission member 4, the reset force of the transmission member 4 can be increased during the retraction of the data line, so that the data line can be better retracted, thereby improving the convenience of use of the device.

[0031] It should be noted that the winding wheel and the first gear 2 can be formed as one piece, or can be connected separately to achieve coaxial rotation.

[0032] It can be understood that the first direction can be a clockwise direction, and the second direction can be a counterclockwise direction; or, the first direction can be a counterclockwise direction, and the second direction can be a clockwise direction.

[0033] Exemplarily, the housing 1 is composed of a first housing 1 and a second housing 1 , and the first housing 1 and the second housing 1 are connected by a detachable connection method such as a screw connection or a snap connection.

[0034] Furthermore, the transmission member 4 rotates along the second rotating shaft; a first fixed structure 41 and a second fixed structure are provided on a side of the transmission member 4 away from the second rotating shaft, and the first fixed structure 41 and the second fixed structure are arranged at intervals along the circumference of the transmission member 4; a first connecting structure is provided on a side of the first fixed structure 41 away from the second rotating shaft, and one end of the first elastic member is fixedly assembled on the first fixed structure 41 and the other end is fixedly assembled on the first connecting structure; a second connecting structure is provided on a side of the first fixed structure 41 away from the second rotating shaft, and one end of the second elastic member is fixedly assembled on the second fixed structure and the other end is fixedly assembled on the second connecting structure.

[0035] Specifically, the transmission member 4 is mainly in a fan-shaped structure, wherein the second rotating shaft is arranged at the end of the short arc, and the end of the long arc is provided with a first fixing structure 41 and a second fixing structure at intervals. The housing 1 is provided with a first connecting structure corresponding to the first fixing structure 41 and a second connecting structure corresponding to the second fixing structure at a position close to the end of the long arc. The first elastic member is stably assembled to the housing 1 and the transmission member 4 through the first fixing structure 41 and the first connecting structure, and the second elastic member is stably assembled to the housing 1 and the transmission member 4 through the second fixing structure and the second connecting structure.

[0036] Furthermore, an extension line of the first elastic member and an extension line of the second elastic member intersect, and the intersection point is located on a side of the first fixing structure 41 away from the first connecting structure.

[0037] Specifically, it is assumed that an arc is provided on the housing 1, the arc having the second rotating shaft as the center, and the radius of the arc is greater than the distance between the two arcs of the fan structure. The first connecting structure and the second connecting structure are arranged on the arc at intervals. That is, in a certain direction, the first connecting structure, the first fixing structure 41 and the second rotating shaft are arranged in sequence; similarly, in a certain direction, the second connecting structure, the second fixing structure and the second rotating shaft are arranged in sequence.

[0038] In addition, it is assumed that the connecting line between the first connecting structure and the first fixed structure 41 is the first connecting line, and the connecting line between the second connecting structure and the second fixed structure is the second connecting line. The extension line of the first connecting line and the extension line of the second connecting line intersect, and the intersection point is near the first fixed structure 41 and the second fixed structure, and on the side of the first fixed structure 41 away from the first connecting structure, and on the side of the second fixed structure away from the second connecting structure. In the process of pulling the data line to rotate the transmission member 4 in the second direction, the first elastic member is compressed and the second elastic member is stretched. When the data line is released, the first elastic member and the second elastic member can both provide a reset force for the transmission member 4, so that the transmission member 4 rotates in the first direction (the opposite direction of the second direction), and the winding wheel and the first gear 2 rotate in the second direction under the action of the winding spring, thereby realizing the automatic retraction of the data line. Further, the first connecting line and the second connecting line are symmetrically arranged, so that the first elastic member and the second elastic member are symmetrically arranged. At the same time, the elastic coefficients of the first elastic member and the second elastic member can be set to be the same, so that during the rotation of the transmission member 4, the forces exerted by the two elastic members on the transmission member 4 or the forces exerted by the transmission member 4 on the elastic member can be the same, so that the transmission member 4 rotates left and right with the same amplitude; at the same time, it can also avoid the situation where one of the elastic members is pulled violently, thereby ensuring the service life of the two elastic members.

[0039] Furthermore, the first elastic member is a spring 5 , and the spring 5 has a first connecting end 51 , and the first connecting end 51 is fixedly assembled on the first fixing structure 41 .

[0040] Specifically, the first elastic member and the second elastic member are both springs 5, and both springs 5 ​​include two ends, which are respectively a first connection end 51 and a second connection end, the first connection end 51 is fixedly connected to the transmission member 4, and the second connection end is fixedly connected to the housing 1. The first gear 2 is rotatably connected to the housing 1 along the first rotating shaft, the transmission member 4 is rotatably connected to the housing 1 along the second rotating shaft, and the second gear 3 is rotatably connected to the housing 1 along the third rotating shaft, and the axial projections of the first rotating shaft, the second rotating shaft and the third rotating shaft are on the same straight line. When the spring 5 is in the initial state, the two springs 5 ​​are symmetrically arranged on the left and right sides of the straight line. When the transmission member 4 rotates, the transmission member 4 drives the two first connection ends 51 to move, so that one of the springs 5 ​​is stretched and the other spring 5 is compressed. When there is no external force, the two springs 5 ​​provide a reset force for the transmission member 4, the spring 5 moves in the direction of restoring the initial state, and the spring 5 drives the transmission member 4 to rotate in the opposite direction, so that part of the data line automatically retracts and finally achieves locking. By providing two springs 5, the restoring force on the transmission member 4 can be increased, and the transmission member 4 can be well rotated in the reverse direction, and the entire locking process is quick and free of jamming.

[0041] For further information, see Figure 3The first fixed structure 41 includes a fixed column arranged at the edge of the transmission member 4 and parallel to the axial direction of the transmission member 4, and the first connecting end 51 is provided with a ring, and the ring is arranged on the fixed column; the outer peripheral side of the fixed column abuts against the inner peripheral side of the ring; or, the fixed column is provided with a clamping groove along the circumference, and the ring is clamped in the clamping groove.

[0042] Specifically, the first fixing structure 41 and the second fixing structure both include fixing columns, and the two fixing columns are spaced apart and arranged at the edge of the transmission member 4. The first connecting ends 51 of the two springs 5 ​​are both provided with a collar, wherein the collar of one spring 5 is sleeved on one of the fixing columns, and the collar of the other spring 5 is sleeved on the other fixing column.

[0043] Furthermore, in some feasible embodiments, the outer peripheral side of the fixing column abuts against the inner peripheral side of the ring, so that a stable connection between the fixing column and the ring can be achieved. In the process of the transmission member 4 driving the first connecting end 51 to move, and in the process of no external force and the spring 5 automatically returning to its original position, the spring 5 will not separate from the transmission member 4, and the spring 5 can be stably assembled on the transmission member 4.

[0044] In some implementations, a snap-in groove is provided on the outer circumference of the fixing column, and the ferrule is snap-fitted into the snap-in groove, so that a stable connection between the fixing column and the ferrule can be achieved, and a stable assembly of the spring 5 and the transmission member 4 can also be achieved.

[0045] It can be understood that the first connection structure and the second connection structure may include a fixing column protruding from the surface of the housing 1, and a collar may be provided at the second connection end of the spring 5, so that a stable assembly of the spring 5 and the housing 1 can be achieved.

[0046] For further information, see Figure 4 The first fixed structure 41 includes a connecting portion 412 arranged on the side wall 42 of the transmission member 4, the connecting portion 412 is bent toward the wall 42 of the transmission member 4 to form an assembly space 4123, the connecting portion 412 has a first end 4121 and a second end 4122, the first end 4121 is connected to the wall 42 of the transmission member 4, and there is a preset gap between the second end 4122 and the wall 42 of the transmission member 4, and the first connecting end 51 is provided with a ring, and the ring is fixedly assembled in the assembly space 4123 through the preset gap.

[0047] Specifically, the second gear 3 is arranged in the middle position of the fan structure of the transmission member 4. The first fixed structure 41 and the second fixed structure both include a connecting portion 412, and the two connecting portions 412 are arranged at intervals on the side wall surface 42 of the transmission member 4 away from the second gear 3. The first connecting ends 51 of the two springs 5 ​​are both provided with a ring, wherein the ring of one spring 5 is connected to one of the connecting portions 412, and the ring of the other spring 5 is connected to the other connecting portion 412.

[0048] The outer shape of the connecting portion 412 may be U-shaped. The first end 4121 contacts and is connected to the wall surface 42 of the transmission member 4. The preset gap may be a small gap between the second end 4122 of the connecting portion 412 and the wall surface 42 of the transmission member 4. The small gap is connected to the assembly space 4123, and the ferrule may be sleeved in the assembly space 4123 through the gap. The assembly space 4123 is a groove formed on the inner side of the connecting portion 412, and the groove may be a U-shaped groove, a C-shaped groove, a V-shaped groove, an L-shaped groove, etc. The ferrule is sleeved in the assembly space 4123, and the outer peripheral side of the ferrule may abut against the groove wall of the groove, thereby achieving stable assembly of the spring 5 and the transmission member 4.

[0049] It can be understood that the first connection structure and the second connection structure may include a U-shaped connection portion 412 provided on the housing 1, and a ferrule may be provided at the second connection end of the spring 5, so that stable assembly of the spring 5 and the housing 1 can be achieved.

[0050] Furthermore, the first gear 2 includes a plurality of first tooth grooves arranged at intervals, and a first convex portion 43 protrudes from one side of the transmission member 4 close to the first gear 2. The first convex portion 43 can be engaged with the first tooth groove so that the first gear 2 drives the transmission member 4 to rotate.

[0051] Specifically, the first gear 2 is rotatably connected to the housing 1 along the first rotating shaft, the transmission member 4 is rotatably connected to the housing 1 along the second rotating shaft, and the second gear 3 is rotatably connected to the housing 1 along the third rotating shaft. The axial projections of the first rotating shaft, the second rotating shaft and the third rotating shaft are on the same straight line, and the third rotating shaft is located between the first rotating shaft and the second rotating shaft. Initially, the first protrusion 43 is engaged with the first tooth groove, and the data line is pulled, the winding wheel drives the first gear 2 to rotate in the first direction, the first tooth groove drives the first protrusion 43 to rotate, the transmission member 4 rotates in the second direction, the first elastic member is compressed, and the second elastic member is stretched. Until the first protrusion 43 is disengaged from the first tooth groove. Between the two first tooth grooves, the first gear 2 also includes a curved surface, so when the first protrusion 43 is disengaged from the first tooth groove, the first protrusion 43 abuts against the curved surface. When the data cable is released, the elastic member provides a reset force for the transmission member 4, causing the transmission member 4 and the second gear 3 to rotate in the first direction, and the winding wheel and the first gear 2 rotate in the second direction under the action of the winding spring, and the data cable retracts until the transmission member 4 is connected to the locking structure. Finally, the data cable is partially retracted and is in a locked state.

[0052] Furthermore, a plurality of second tooth grooves are formed on the circumferential side of the second gear 3, and the transmission member 4 protrudes with a second convex portion 44 and a third convex portion 45, and the second convex portion 44 and the third convex portion 45 are distributed on both sides of the second gear 3; the second convex portion 44 can abut against the groove wall of the second tooth groove, so that the transmission member 4 drives the second gear 3 to rotate along the second direction; the third convex portion 45 can abut against the groove wall of the second tooth groove, so that the transmission member 4 drives the second gear 3 to rotate along the first direction; the first direction and the second direction are opposite.

[0053] Specifically, the second gear 3 is arranged in the middle position of the fan-shaped structure of the transmission member 4, and a second convex portion 44 is protruded from the inner side wall of the transmission member 4 between the second fixed structure and the second rotating shaft, and a third convex portion 45 is protruded from the inner side wall of the transmission member 4 between the first fixed structure 41 and the second rotating shaft. When the data cable is pulled to rotate the transmission member 4 in the second direction, the second convex portion 44 gradually approaches the direction of the second gear 3, and can abut against the groove wall of the second tooth groove, and can drive the second gear 3 to rotate in the second direction. When the data cable is released and the transmission member 4 rotates in the first direction, the second convex portion 44 moves in the direction away from the second gear 3, and the third convex portion 45 moves in the direction close to the second gear 3, and the third convex portion 45 can abut against the groove wall of the second tooth groove until the transmission member 4 is connected to the locking structure, or until the data cable is pulled again.

[0054] Furthermore, a plurality of third tooth grooves are formed on the peripheral side of the second gear 3, and the second tooth grooves and the third tooth grooves are alternately arranged; the locking structure includes a plurality of locking portions 31, and the locking portions 31 are arranged on the third tooth grooves, and the locking portions 31 and the third tooth grooves correspond one to one; the third protrusion 45 can abut against the locking portion 31 to limit the transmission member 4 from continuing to rotate in the first direction, and the second protrusion 44 can abut against the locking portion 31 to limit the transmission member 4 and the second gear 3 from continuing to rotate in the second direction.

[0055] Specifically, the second gear 3 is formed with alternately arranged second tooth grooves and third tooth grooves, wherein the third tooth groove is provided with a locking portion 31. When the second gear 3 rotates, the second tooth groove and the third tooth groove follow and rotate synchronously. When the data line is pulled, the transmission member 4 rotates in the second direction, and the second convex portion 44 gradually approaches the direction of the second gear 3, and can abut against the groove wall of the second tooth groove, driving the second gear 3 to rotate in the second direction until the data line is completely pulled apart, or the second convex portion 44 abuts against the locking portion 31, or the user releases the data line by himself. When the data line is released, under the action of the reset force of the elastic member, the transmission member 4 rotates in the first direction, the second convex portion 44 gradually moves in the direction away from the second gear 3, and the third convex portion 45 gradually moves in the direction of the second gear 3, and the third convex portion 45 can abut against the groove wall of the second tooth groove, driving the second gear 3 to rotate in the first direction until the third convex portion 45 abuts against the locking portion 31 of the third tooth groove, thereby realizing partial retraction and locking of the data line. When the third protrusion 45 is parallel to the second tooth groove or the groove wall of the third tooth groove, the data line is completely retracted, and the spring 5 is restored to the initial state.

[0056] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0057] The above is a description of the technical solution provided by the utility model. For technicians in this field, according to the ideas of the embodiments of the utility model, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A retractable data cable, characterized in that: include: A housing, a winding wheel, a first gear, a second gear, a transmission member, a first elastic member, and a second elastic member; The data cable is wound around the outer circumference of the winding wheel, the winding wheel is rotatably connected to the housing along a first rotating shaft, and the winding wheel is provided with a coil spring; The winding wheel is used to drive the first gear to rotate coaxially; The first gear and the second gear are connected to each other through the transmission member, and the rotation direction of the first gear is opposite to the rotation direction of the second gear and the transmission member; One end of the first elastic member is fixed to the housing and the other end is fixed to one side of the transmission member, one end of the second elastic member is fixed to the housing and the other end is fixed to the other side of the transmission member, and the first elastic member and the second elastic member are both used to provide a restoring force to rotate the transmission member in a first direction; The second gear is provided with a locking structure. During the process of the transmission member and the second gear rotating along the first direction, when the transmission member is connected to the locking structure, the locking structure is used to limit the transmission member and the second gear from continuing to rotate along the first direction.

2. The retractable data cable according to claim 1, characterized in that: The transmission member rotates along the second rotating shaft; a first fixing structure and a second fixing structure are arranged on a side of the transmission member away from the second rotating shaft, and the first fixing structure and the second fixing structure are arranged at intervals along the circumference of the transmission member; The housing is provided with a first connecting structure on a side of the first fixing structure away from the second rotating shaft, one end of the first elastic member is fixedly assembled to the first fixing structure and the other end is fixedly assembled to the first connecting structure; The housing is provided with a second connection structure on a side of the first fixing structure away from the second rotating shaft, and one end of the second elastic member is fixedly assembled to the second fixing structure and the other end is fixedly assembled to the second connection structure.

3. The retractable data cable according to claim 2, characterized in that: An extension line of the first elastic member and an extension line of the second elastic member intersect, and the intersection point is located on a side of the first fixing structure away from the first connecting structure.

4. The retractable data cable according to claim 2, characterized in that: The first elastic member is a spring having a first connecting end, and the first connecting end is fixedly assembled on the first fixing structure.

5. The retractable data cable according to claim 4, characterized in that: The first fixing structure comprises a fixing column arranged at the edge of the transmission member and parallel to the axial direction of the transmission member, and the first connecting end is provided with a ferrule, and the ferrule is sleeved on the fixing column; The outer circumference of the fixing column is in contact with the inner circumference of the ferrule; or, the fixing column is provided with a clamping groove along the circumferential direction, and the ferrule is clamped in the clamping groove.

6. The retractable data cable according to claim 4, characterized in that: The first fixing structure includes a connecting portion arranged on the side wall of the transmission member, the connecting portion is bent toward the wall of the transmission member to form an assembly space, the connecting portion has a first end and a second end, the first end is connected to the wall of the transmission member, and there is a preset gap between the second end and the wall of the transmission member, and the first connecting end is provided with a ring, and the ring is fixedly assembled in the assembly space through the preset gap.

7. The retractable data cable according to claim 1, characterized in that: The first gear comprises a plurality of first tooth grooves arranged at intervals, and a first convex portion protrudes from a side of the transmission member close to the first gear, and the first convex portion can be engaged with the first tooth groove.

8. The retractable data cable according to claim 7, characterized in that: A plurality of second tooth grooves are formed on the circumferential side of the second gear, and the transmission member is protruded with a second convex portion and a third convex portion, and the second convex portion and the third convex portion are distributed on both sides of the second gear; the second convex portion can abut against the groove wall of the second tooth groove, so that the transmission member drives the second gear to rotate along the second direction; the third convex portion can abut against the groove wall of the second tooth groove, so that the transmission member drives the second gear to rotate along the first direction; the first direction and the second direction are opposite.

9. The retractable data cable according to claim 8, characterized in that: A plurality of third tooth grooves are also formed on the circumferential side of the second gear, and the second tooth grooves and the third tooth grooves are alternately arranged; the locking structure includes a plurality of locking parts, and the locking parts are arranged on the third tooth grooves, and the locking parts and the third tooth grooves correspond one to one; the third convex part can abut against the locking part to limit the transmission member from continuing to rotate along the first direction, and the second convex part can abut against the locking part to limit the transmission member and the second gear from continuing to rotate along the second direction.

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