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 and an elastic member. The data line is wound on the peripheral side of the reel, and the reel is rotationally connected to the shell along a first rotating shaft, so that the data line can stretch out and draw back in the shell; 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 first gear, the transmission part and the second gear rotate in the same direction; a fixing structure is arranged on the side, away from the first gear, of the transmission part, one end of the spring is fixedly assembled to the fixing structure, the other end of the elastic part is fixed to the shell, and the elastic part provides reset force enabling the transmission part and the first gear 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. Stretching and locking are achieved by operating the data line, and operation is convenient.

Description

Technical Field

[0001] The utility model belongs to the field of electronic equipment charging, and in particular relates to a telescopic 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 and an elastic member; the data cable is wound around the outer peripheral side of the winding wheel, and the winding wheel is rotatably connected to the housing along a first rotating shaft so that the data cable can be retracted in the housing; 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 first gear, the transmission member and the second gear rotate in the same direction; a fixed structure is provided on the side of the transmission member away from the first gear, one end of the spring is fixedly assembled on the fixed structure, and the other end of the elastic member is fixed to the housing, and the elastic member is used to provide a reset force for the transmission member and the first gear to rotate 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] Furthermore, the elastic member is a spring, and the spring has a first connecting end, and the first connecting end is fixedly connected to the fixed structure.

[0006] Furthermore, the fixing structure includes a main body portion arranged on the side of the transmission member away from the first gear, and a clamping groove opened in the main body portion and opening toward the direction of the first gear; the first connecting end is provided with a ring, and the ring is sleeved on the outer peripheral side of the main body and clamped in the clamping groove.

[0007] Furthermore, the main body is a columnar structure extending along the thickness direction of the transmission member, and in the thickness direction of the transmission member, the projection surface of the transmission member covers the projection surface of the columnar structure.

[0008] Further, the fixing structure includes a connecting portion protruding from the side of the transmission member away from the first gear, the connecting portion is bent toward the wall surface 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 surface of the transmission member, and there is a preset gap between the second end and the wall surface of the transmission member, and the ring is fixedly assembled in the assembly space through the preset gap.

[0009] Furthermore, the fixing structure comprises an annular structure arranged on a side of the transmission member away from the first gear, and the first connecting end is provided with a hook, and the hook is connected to the annular structure.

[0010] Further, the first gear includes a plurality of curved surfaces and a plurality of first tooth grooves formed between two of the curved surfaces. 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; the elastic member is used to provide a reset force for the transmission member so that the first convex portion abuts against the curved surface so that the transmission member drives the first gear to rotate.

[0011] Furthermore, a plurality of second tooth grooves are formed on the circumferential side of the second gear, 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 be engaged with the second tooth groove so that the transmission member drives the second gear to rotate along the second direction; the third convex portion can be engaged with 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.

[0012] 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 second protrusion or the third protrusion can abut against the locking part.

[0013] Compared with the related art, the telescopic data cable in the utility model has the following beneficial effects:

[0014] In the utility model, the data line is wound around the outer peripheral side of the winding wheel, so when the data line is pulled out of the housing, the winding wheel can be driven to rotate relative to the housing in the second direction. At the same time, the winding wheel drives the first gear to rotate, and under the action of the transmission member, the second gear rotates in the same direction. When the data line is pulled to a certain length, the data line is released again, that is, in the absence of other external forces, under the action of the reset force of the elastic member, the transmission member and the first gear rotate in the opposite direction, that is, the transmission member and the first gear rotate in the first direction (the first direction is the opposite direction of the second direction), the first gear drives the winding wheel to rotate in the first direction, and the data line automatically retracts. In the process of the transmission member and the second gear rotating in the first direction, when the transmission member is not connected to the locking structure, the data line is completely retracted. However, 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 cannot continue to rotate in the first direction under the action of the transmission member. Similarly, the winding wheel coaxial with the first gear cannot continue to rotate. At this time, part of it is automatically retracted, and the data line is in a locked state. When unlocking, the data line can be pulled to make the winding wheel and the first gear rotate along the second direction, and the transmission member rotates along the second direction driven by the first gear, and at the same time the transmission member and the locking structure are separated, and the transmission member drives the second gear to rotate along the second direction, that is, the data line can be pulled again to unlock. The utility model can realize the extension and locking of the data line through the locking structure and the 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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.

[0016] Figure 1 It is a structural schematic diagram of a retractable data cable in an embodiment of the utility model;

[0017] Figure 2 is a first cross-sectional view of the retractable data cable in an embodiment of the utility model;

[0018] Figure 3 It is a second cross-sectional view of the retractable data cable in the first embodiment of the utility model;

[0019] Figure 4 yes Figure 3 A magnified view of detail A;

[0020] Figure 5is a cross-sectional view of the fixing structure in the second embodiment of the present utility model;

[0021] Figure 6 It is a cross-sectional view of the fixing structure in the third embodiment of the present utility model.

[0022] In the accompanying drawings, each figure mark represents: 1, shell; 2, first gear; 3, second gear; 31, locking portion; 4, transmission member; 41, fixing structure; 411, main body; 412, snap-in groove; 413, connecting portion; 4131, first end; 4132, second end; 4133, assembly space; 414, annular structure; 42, wall; 43, first protrusion; 44, second protrusion; 45, third protrusion; 5, spring; 51, first connecting end. DETAILED DESCRIPTION

[0023] 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.

[0024] 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.

[0025] 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.

[0026] See also Figure 1-6The embodiment of the utility model provides a retractable data cable, including: a shell 1, a winding wheel, a first gear 2, a second gear 3, a transmission member 4 and an elastic member; the data cable is wound around the outer peripheral side of the winding wheel, and the winding wheel is rotatably connected to the shell 1 along the first rotating shaft, so that the data cable can be retracted in the shell 1; the winding wheel is also 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 first gear 2, the transmission member 4 and the second gear 3 rotate in the same direction; a fixing structure 41 is provided on the side of the transmission member 4 away from the first gear 2, one end of the spring 5 is fixedly assembled on the fixing structure 41, and the other end of the elastic member is fixed to the shell 1, and the elastic member is used to provide a reset force to rotate the transmission member 4 and the first gear 2 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.

[0027] In the embodiment of the utility model, the data line is wound around the outer peripheral side of the winding wheel, so when the data line is pulled outward from the housing 1, the winding wheel can be driven to rotate relative to the housing 1 in the second direction. At the same time, the winding wheel drives the first gear 2 to rotate, and under the action of the transmission member 4, the second gear 3 rotates in the same direction. After pulling to a certain length, the data line is released again, that is, in the absence of other external forces, under the action of the reset force of the elastic member, the transmission member 4 and the first gear 2 rotate in the opposite direction, that is, the transmission member 4 and the first gear 2 rotate in the first direction (the first direction is the opposite direction of the second direction), the first gear 2 drives the winding wheel to rotate in the first direction, and the data line automatically retracts. In the process of the transmission member 4 and the second gear 3 rotating in the first direction, when the transmission member 4 is not connected to the locking structure, the data line is completely retracted. However, 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 cannot continue to rotate in the first direction under the action of the transmission member 4. Similarly, the winding wheel coaxial with the first gear 2 cannot continue to rotate. At this time, the part automatically retracts and the data cable is in a locked state. When unlocking, the data cable can be pulled to cause the winding wheel and the first gear 2 to rotate in the second direction. The transmission member 4 rotates in the second direction driven by the first gear 2, and at the same time, the transmission member 4 and the locking structure are separated, and the transmission member 4 drives the second gear 3 to rotate in the second direction, that is, the data cable is pulled again to unlock. The embodiment of the utility model can realize the extension and locking of the data cable through the locking structure and the elastic member. The whole process only needs to pull or release the data cable. There is no need to set a switch structure or operate the switch structure. The structure is simple and easy to operate.

[0028] 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.

[0029] 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.

[0030] For further information, see Figure 2-4 The elastic member is a spring 5 , and the spring 5 has a first connecting end 51 , and the first connecting end 51 is fixedly connected to the fixed structure 41 .

[0031] Specifically, in the embodiment of the utility model, the elastic member is a spring 5, wherein the two ends of the spring 5 are respectively a first connection end 51 and a second connection end, the first connection end 51 is fixedly connected to the fixed structure 41 of 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 second gear 3 is rotatably connected to the housing 1 along the second rotating shaft, and the transmission member 4 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. When the spring 5 is in the initial state, the spring 5 is located on the straight line. When the transmission member 4 rotates, the transmission member 4 drives the first connection end 51 to move, so that the spring 5 is stretched. When there is no external force, the spring 5 provides 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. The reset force of the spring 5 on the transmission member 4 is large, which can well realize the reverse rotation of the transmission member 4, and the entire locking process is quick and does not get stuck.

[0032] For further information, see Figure 2-4 In some embodiments, the fixing structure 41 includes a main body 411 disposed on the side of the transmission member 4 away from the first gear 2, and a clamping groove 412 opened in the main body 411 and opening toward the first gear 2; the first connecting end 51 is provided with a ring, which is sleeved on the outer peripheral side of the main body 411 and clamped in the clamping groove 412.

[0033] In some embodiments, see Figure 2-4 The collar of the spring 5 is sleeved on the main body 411 and is engaged with the engaging groove 412, and the opening of the engaging groove 412 faces the direction of the first gear 2, that is, the opening of the engaging groove 412 is away from the second connecting end of the spring 5. Since the collar is engaged with the engaging groove 412, the spring 5 will not be separated from the transmission member 4 during the process of the transmission member 4 driving the first connecting end 51 to move, and in the process of the spring 5 automatically returning to its original position without external force, and the spring 5 can be stably assembled on the fixed structure 41 of the transmission member 4.

[0034] In some other embodiments, the clamping groove 412 is arranged along the circumference of the main body 411. This also enables the spring 5 to be stably assembled to the fixing structure 41 of the transmission member 4.

[0035] For further information, see Figure 2-4 The main body 411 is a columnar structure extending along the thickness direction of the transmission member 4. In the thickness direction of the transmission member 4, the projection surface of the transmission member 4 covers the projection surface of the columnar structure.

[0036] Specifically, the transmission member 4 is away from the first gear 2 and is recessed inward to form a space, and the bottom of the columnar structure is connected to the bottom of the transmission member 4 and the columnar structure is arranged in the space. There is a certain gap between the top side of the columnar structure and the bottom side of the transmission member 4, so that the projection surface of the transmission member 4 covers the projection surface of the columnar structure in the thickness direction of the transmission member 4. Therefore, the ring of the spring 5 can be set on the main body 411 from the top side of the columnar structure, which can reduce the difficulty of assembly.

[0037] For further information, see Figure 5 In some embodiments, the fixing structure 41 includes a connecting portion 413 protruding from the side of the transmission member 4 away from the first gear 2, the connecting portion 413 is bent toward the wall 42 of the transmission member 4 to form an assembly space 4133, the connecting portion 413 has a first end 4131 and a second end 4132, the first end 4131 is connected to the wall 42 of the transmission member 4, and there is a preset gap between the second end 4132 and the wall 42 of the transmission member 4, and the ring is fixedly assembled in the assembly space 4133 through the preset gap.

[0038] Specifically, the outer shape of the connecting portion 413 may be U-shaped. The preset gap may be a small gap between the second end 4132 of the connecting portion 413 and the wall surface 42 of the transmission member 4, the small gap being connected to the assembly space 4133, and the ferrule may be sleeved in the assembly space 4133 through the gap. The assembly space 4133 is a groove formed on the inner side of the connecting portion 413, 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 4133, and the outer peripheral side of the ferrule may abut against the groove wall of the groove.

[0039] For further information, see Figure 6 In some embodiments, the fixing structure 41 includes an annular structure 414 disposed on a side of the transmission member 4 away from the first gear 2 , and the first connecting end 51 is provided with a hook connected to the annular structure 414 .

[0040] Specifically, an annular structure 414 is provided on the wall surface 42 of the transmission member 4 on the side away from the first gear 2, and the through hole of the annular structure 414 can extend along the axial direction of the transmission member 4, or can extend in a direction perpendicular to the axial direction of the transmission member 4, and the extension length is relatively small. The spring 5 is provided with a hook, which is a non-closed loop with a certain gap, and the hook can be connected to the annular structure 414 through the gap. Similarly, the connection stability between the spring 5 and the transmission member 4 can be achieved.

[0041] For further information, see Figure 2 The first gear 2 includes a plurality of curved surfaces and a plurality of first tooth grooves formed between the two curved surfaces. A first convex portion 43 protrudes from the 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; the elastic member is used to provide a reset force for the transmission member 4 so that the first convex portion 43 abuts against the curved surface so that the transmission member 4 drives the first gear 2 to rotate.

[0042] Specifically, the first gear 2 is rotatably connected to the housing 1 along the first rotating shaft, the second gear 3 is rotatably connected to the housing 1 along the second rotating shaft, and the transmission member 4 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 second rotating shaft is located between the first rotating shaft and the third rotating shaft. Initially, the first convex portion 43 is engaged with the first tooth groove, the data line is pulled, the winding wheel drives the first gear 2 to rotate, the first tooth groove drives the first convex portion 43 to rotate, the transmission member 4 rotates, and the elastic member is stretched. Until the first convex portion 43 falls off the first tooth groove, the first convex portion 43 abuts against the curved surface. When the data line is released, the elastic member provides a reset force for the transmission member 4, so that the first convex portion 43 fits tightly against the curved surface, and the first convex portion 43 drives the first gear 2 to rotate in the opposite direction until the transmission member 4 is connected to the locking structure, and finally the data line is partially retracted, and the data line is in a locked state.

[0043] For further information, see Figure 2 A plurality of second tooth grooves are formed on the peripheral side of the second gear 3, and a second convex portion 44 and a third convex portion 45 are protruded from the transmission member 4, 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 be engaged with 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 be engaged with 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.

[0044] Specifically, the transmission member 4 surrounds the outer peripheral side of the second gear 3, and the inner side wall of 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. 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 be engaged with the second tooth groove, driving 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 a direction away from the second gear 3, and the third convex portion 45 moves in a direction close to the second gear 3, and the third convex portion 45 can be engaged with the second tooth groove until the transmission member 4 is connected to the locking structure, or until the data cable is pulled again.

[0045] For further information, see Figure 2 A plurality of third tooth grooves are also 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 parts 31, and the locking parts 31 are arranged in the third tooth grooves, and the locking parts 31 and the third tooth grooves correspond one to one; the second protrusion 44 or the third protrusion 45 can abut against the locking part 31.

[0046] 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 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 be engaged with the second tooth groove, driving the second gear 3 to rotate in the second direction. 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 away from the locking portion 31, and the third convex portion 45 gradually moves in the direction of the second gear 3, and can be engaged with 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 achieving partial retraction and locking of the data line. When the side surface of the second convex portion 44 is parallel to the groove wall of the second tooth groove or the side surface of the third convex portion 45 is parallel to the groove wall of the second tooth groove, the data line is completely retracted. At this time, the spring 5 is reset to the initial state.

[0047] It can be understood that the second gear 3 has a curved surface on its circumference, and the second tooth groove and the third tooth groove are formed between the curved surfaces. When the second protrusion 44 or the third protrusion 45 contacts the curved surface of the second gear 3, the transmission member 4 can also drive the second gear 3 to rotate.

[0048] 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.

[0049] 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 and an elastic member; The data cable is wound around the outer circumference of the winding wheel, and the winding wheel is rotatably connected to the housing along a first rotating shaft, so that the data cable can be retracted in the housing; The winding wheel is used to drive the first gear to rotate coaxially; The first gear and the second gear are connected by the transmission member, and the first gear, the transmission member and the second gear rotate in the same direction; A fixing structure is provided on a side of the transmission member away from the first gear, one end of the elastic member is fixedly assembled on the fixing structure, and the other end of the elastic member is fixed to the housing, and the elastic member is used to provide a restoring force to make the transmission member and the first gear rotate along the 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 elastic member is a spring having a first connecting end, and the first connecting end is fixedly connected to the fixing structure.

3. The retractable data cable according to claim 2, characterized in that: The fixing structure includes a main body portion arranged on the side of the transmission member away from the first gear, and a clamping groove opened in the main body portion and opening toward the direction of the first gear; the first connecting end is provided with a ring, which is sleeved on the outer peripheral side of the main body and clamped in the clamping groove.

4. The retractable data cable according to claim 3, characterized in that: The main body is a columnar structure extending along the thickness direction of the transmission member. In the thickness direction of the transmission member, the projection surface of the transmission member covers the projection surface of the columnar structure.

5. The retractable data cable according to claim 3, characterized in that: The fixing structure includes a connecting portion protruding from the side of the transmission member away from the first gear, 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 ring is fixedly assembled in the assembly space through the preset gap.

6. The retractable data cable according to claim 2, characterized in that: The fixing structure comprises an annular structure arranged on a side of the transmission member away from the first gear, and the first connecting end is provided with a hook, and the hook is connected to the annular structure.

7. The retractable data cable according to claim 1, characterized in that: The first gear includes a plurality of curved surfaces and a plurality of first tooth grooves formed between two of the curved surfaces. 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; the elastic member is used to provide a reset force for the transmission member so that the first convex portion abuts against the curved surface so that the transmission member drives the first gear to rotate.

8. The retractable data cable according to claim 1, 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 be engaged with the second tooth groove so that the transmission member drives the second gear to rotate along the second direction; the third convex portion can be engaged with 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 second protrusion or the third protrusion can abut against the locking part.

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