CN209881029U

CN209881029U - Flexible data line

Info

Publication number: CN209881029U
Application number: CN201920533418.7U
Authority: CN
Inventors: 林展星; 张声威; 莫伟锋
Original assignee: Shenzhen Chengyue Chuangzhan Technology Co Ltd
Current assignee: Dongguan Sixing Intelligent Equipment Manufacturing Co.,Ltd.
Priority date: 2019-04-16
Filing date: 2019-04-16
Publication date: 2019-12-31
Anticipated expiration: 2029-04-16

Abstract

The utility model relates to a flexible data line, flexible data line includes shell, connecting wire and at least one joint; the connecting wire is electrically connected with the joint; the telescopic data line comprises a telescopic piece and a rotary disc, the rotary disc can rotate in the shell and has elastic rotary force, the telescopic piece is arranged along the radial direction of the rotary disc, and the telescopic piece can elastically stretch along the radial direction of the rotary disc; the edge of the rotary disk is provided with at least one limiting part protruding out of the surface of the rotary disk, and the limiting part is an arc-shaped bent plate arranged at the edge of the rotary disk. Through setting up locating part and extensible member cooperation, when the carousel rotated, the extensible member elastic shrinkage when through the locating part, when needing to return flexible data line rolling shell in, the pulling connects and makes the carousel rotate, makes locating part and extensible member keep away from each other, loosens to connect and makes the carousel gyration, utilizes the automatic rolling of accomplishing flexible data line of the elastic rotary force of carousel, convenient operation.

Description

Flexible data line

[ technical field ] A method for producing a semiconductor device

The utility model relates to an electronic equipment accessory field, in particular to flexible data line.

[ background of the invention ]

In modern life, many electronic devices such as mobile phones and tablet computers need to be extended and retracted to transmit or charge data.

The existing telescopic data line has a telescopic data line with a telescopic function, so that the inconvenience caused by overlong or overlong telescopic data line is reduced when the telescopic data line is used.

However, in the existing retractable data cable with the retractable and retractable function, the structure for controlling the retractable and retractable data cable to be retracted and retracted is complex, so that the user is inconvenient to operate, difficult to manufacture and high in manufacturing cost when using the retractable and retractable data cable.

[ Utility model ] content

In order to overcome the inconvenient problem of operation when present flexible data line uses, the utility model provides a flexible data line.

The utility model solves the technical problem, and provides a technical scheme as follows: a flexible data line is used for connecting electronic equipment to transmit data or charge, and comprises a shell, a connecting line and at least one joint; the connecting wire is electrically connected with the joint; the telescopic data line comprises a telescopic piece and a rotary disc, the rotary disc can rotate in the shell and has elastic rotary force, the telescopic piece is arranged along the radial direction of the rotary disc, and the telescopic piece can elastically stretch along the radial direction of the rotary disc; the telescopic data line further comprises a limiting piece matched with the telescopic piece, the limiting piece is bent towards the telescopic piece, and one end, far away from the center of the turntable, of the telescopic piece can be abutted against the side face, close to the center of the turntable, of the limiting piece; the telescopic piece and the limiting piece can rotate relatively and abut against or separate from each other along with the rotation, so that the telescopic piece can elastically stretch out and draw back or restore to a free state along the radial direction of the turntable.

Preferably, the limiting part is an arc-shaped bent plate arranged at the edge of the turntable; or the limiting part is an arc-shaped bent plate which is arranged at the rotating center of the rotating disc and protrudes out of the surface of the rotating disc.

Preferably, the data line further comprises a circuit board accommodated in the housing, and the connecting line is electrically connected with the circuit board; the connector is divided into a first connector and a second connector, the first connector is electrically connected with the connecting wire, and the second connector is electrically connected with the circuit board; the first joint and the second joint are exposed out of the shell; the first connector and the second connector are used for connecting electronic equipment.

Preferably, the outer shell includes a first shell, the first shell is close to the telescopic member, the first shell is provided with a limiting groove at a position corresponding to the telescopic member, and the limiting groove is used for limiting the telescopic member to elastically stretch in the radial direction of the turntable.

Preferably, when the turntable rotates, the telescopic member is in an elastically contracted state in a sliding process along the limiting member to adjust a length of the connecting line exposed out of the housing, and when the turntable is stationary relative to the telescopic member in a free state, the telescopic member abuts against the limiting member, and the connecting line is in a state of stopping stretching or contracting.

Preferably, the telescopic member comprises a telescopic elastic member and a clamping member, one end of the telescopic elastic member abuts against the limiting groove, and the opposite end of the telescopic elastic member is connected with the clamping member, so that the clamping member can elastically stretch along the radial direction of the turntable; one end of the clamping piece, which is far away from the center of the turntable, abuts against the limiting piece; the clamping piece is abutted against the end face circular arc transition of one end of the limiting piece.

Preferably, the housing further comprises a second shell, and the first shell covers the second shell; the second shell is further provided with a fixing column, and the fixing column penetrates through the rotation center of the rotary table, so that the rotary table can rotate around the fixing column.

Preferably, a first outlet is arranged on the side wall of the first shell, and a second outlet is arranged on the side wall of the second shell; the first joint is exposed at the first outlet, and the second joint is exposed at the second outlet.

Preferably, the turntable is further provided with a torsional elastic piece and an accommodating groove for accommodating the elastic piece, and the fixing column penetrates through the accommodating groove; the accommodating groove is formed by enclosing a convex wall surface of the rotary disc close to the surface of the second shell; the torsional elastic piece comprises two mutually separated ends, one end of the torsional elastic piece is fixed at the accommodating groove, the other end of the accommodating groove is fixed at the fixed column, so that the torsional elastic piece is twisted to generate a rotary force when the rotary table rotates relative to the fixed column; the connecting wire is wound on the outer wall of the accommodating groove.

Preferably, the circuit board includes a first connecting plate, a second connecting plate and a terminal, the first connecting plate is fixed with the turntable, the second connecting plate is fixed with the second housing, the terminal is arranged between the first connecting plate and the second connecting plate, the terminal is electrically connected with the first connecting plate and the second connecting plate, and the terminal is fixed with the first connecting plate; the first connecting plate is electrically connected with the connecting wire, and the second connecting plate is electrically connected with the second joint; the fixing column penetrates through the centers of the first connecting plate and the second connecting plate; and the second connecting plate is provided with an annular conducting strip taking the fixed column as a circle center, and the terminal is electrically connected with the annular conducting strip.

Compared with the prior art, the utility model provides a flexible data line has following advantage:

1. through setting up the locating part with the extensible member cooperation, work as when the carousel rotates, the extensible member is in the process elastic contraction during the locating part, when needs are with flexible data line rolling back to the shell in, only need stimulate first joint to make the carousel rotate for after the locating part rotates and keeps away from the extensible member, loosen first joint and make the carousel gyration, until flexible data line all rolling back to the shell in, utilize the turning force of twisting elastic component to accomplish the rolling of flexible data line automatically, convenient operation.

2. The shell is divided into a first shell and a second shell, the first shell covers the second shell, the first shell is close to the extensible member, a limiting groove is formed in the position, relative to the extensible member, of the first shell, and the first shell is used for limiting the extensible member to elastically stretch in the radial direction of the rotary table. The first shell and the second shell are arranged to form a space for accommodating the winding component and the transmission component; the telescopic piece is limited to elastically stretch in the radial direction of the first shell through the limiting groove.

3. And a fixing column is further arranged on the second shell and penetrates through the rotation center of the turntable. Through setting up the fixed column, twist reverse the elastic component respectively with the fixed column, the storage tank is fixed, makes the carousel has the elasticity gyroscopic force.

4. The turntable is also provided with an elastic piece and an accommodating groove for accommodating the elastic piece; the rotary disc further comprises a cover assembly, and the cover assembly is used for covering the torsional elastic piece in the accommodating groove. Through setting up the closure, will twist reverse the elastic component lid fit in the storage tank, prevent twist reverse the elastic component accident and fall outside the storage tank.

5. And the second connecting plate is provided with an annular conducting strip taking the fixed column as a circle center, and the terminal is electrically connected with the annular conducting strip. Through setting up annular conducting strip for when the terminal is in the rotation, keep the terminal with the electrical property of second connecting plate switches on, improves the stability of electricity connection.

6. The limiting part is a bent plate which is arranged at the edge of the rotary table and bent towards the rotary table rotation center. Through setting up the locating part, make the extensible member is when passing through the locating part, can make through the side of locating part bent plate structure the extensible member elastic contraction.

7. Through setting up the screens piece is kept away from the one end at carousel center with the carousel has the interval on carousel pivoted axial direction, makes when the carousel rotates, avoid the screens piece with the carousel contact and the frictional force that produces makes the rotation of carousel more smooth.

[ description of the drawings ]

Fig. 1 is a schematic view of the overall structure of the retractable data cable provided by the present invention.

Fig. 2 is an explosion structure diagram of the retractable data line provided by the present invention.

Fig. 3 is a schematic view of a partial cutaway of the first housing in the retractable data cable provided by the present invention.

Fig. 4a is an illustration of an explosion structure of the rolling component in the retractable data line provided by the present invention.

Fig. 4b is a schematic structural view illustrating the torsion elastic member of the retractable data line of the present invention being accommodated in the accommodating groove.

Fig. 4c is an exploded view of the telescopic data cable according to another angle.

Fig. 5 is an exploded schematic view of a transmission assembly in a retractable data line according to the present invention.

Fig. 6a is a schematic structural diagram of the retractable data cable provided by the present invention when the first joint is pulled.

Fig. 6b is a schematic structural view illustrating the elastic contraction of the expansion piece relative to the position-limiting part when the first joint is pulled by the retractable data line provided by the present invention.

Fig. 6c is a schematic structural diagram of the retractable data line provided by the present invention when the first connector is pulled to abut against the limiting member and the rotating disc stops rotating.

Fig. 6d is a schematic structural diagram of the telescopic data cable provided by the present invention when the first joint is pulled until the telescopic member has a certain distance from the position-limiting member.

Fig. 6e is a schematic structural view of the telescopic member elastically contracting relative to the limiting member when the turntable automatically rotates according to the telescopic data line provided by the present invention.

Description of reference numerals:

1. a data line is stretched; 11. a housing; 111. a first housing; 1111. a first outlet; 1112. a limiting groove; 112. a second housing; 1121. a second outlet; 1122. fixing a column;

12. a winding component; 121. a telescoping member; 1211. a clamping piece; 1212. a flexible elastic member; 122. a turntable; 1221. a limiting member; 1222. a torsional elastic member; 1223. a containing groove; 1224. a closure member; 123. a flexible elastic member;

13. a transmission assembly; 131. a first joint; 132. a second joint; 133. a circuit board; 1331. a first connecting plate; 1332. a terminal; 1333. a second connecting plate; 1334. an annular conductive sheet; 134. and connecting the wires.

[ detailed description ] embodiments

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

Please refer to fig. 1 and fig. 2, the present invention provides a flexible data cable 1 for connecting an electronic device to transmit data or charge. The electronic equipment comprises a mobile phone, a tablet personal computer and the like which can carry out data transmission or charging through a telescopic data line.

The telescopic data line 1 comprises a shell 11, a winding component 12 and a transmission component 13. The housing 11 accommodates the rolling component 12 and the transmission component 13, the transmission component 13 is partially rolled in the rolling component 12, the transmission component 13 is partially exposed out of the housing 11, and the transmission component 13 is used for connecting an electronic device for charging or data transmission.

Referring to fig. 2 and 3, the housing 11 is divided into a first housing 111 and a second housing 112, the first housing 111 covers the second housing 112, a space for accommodating the winding assembly 12 is formed between the first housing 111 and the second housing 112, a fixing pillar 1122 protruding toward the first housing 111 is disposed at the center of the second housing 112, and the winding assembly 12 is rotatably connected to the fixing pillar 1122 and can rotate around the fixing pillar 1122 while having an elastic rotation force.

With reference to fig. 2 and fig. 3, the winding assembly 12 includes a telescopic member 121 and a rotary plate 122, the rotary plate 122 rotates around the fixed column 1122 and has an elastic rotation force, the telescopic member 121 is disposed along a radial direction of the rotary plate 122, and the telescopic member 121 abuts against the first housing 111 and can elastically expand and contract along the radial direction of the rotary plate 122. Specifically, the retractable member 121 includes a locking member 1211 and a retractable elastic member 1212, wherein one end of the retractable elastic member 1212 is fixedly connected to the first housing 111, and the opposite end of the retractable elastic member 1212 is connected to the locking member 1211, so that the locking member 1211 can elastically retract along the radial direction of the rotary plate 122. The elastic expansion is the movement of the blocking element 1211 in the radial direction of the turntable 122, which is caused by the compression process of the blocking element 1211 on the elastic element 1212 and the pushing process of the blocking element 1211 which is caused by the elastic force recovery of the elastic element 1212 after the compression.

With reference to fig. 2 and fig. 3, a limit groove 1112 is disposed on a surface of the first housing 111 close to the retractable member 121, when the first housing 111 is covered on the second housing 112, the retractable member 121 abuts against the limit groove 1112, specifically, one end of the retractable elastic member 1212 abuts against the limit groove 1112, and an opposite end of the retractable elastic member 1212 is connected to the position-locking member 1211. The blocking member 1211 abuts against the limiting groove 1112, so that when the rotary disc 122 rotates, the telescopic member 121 abuts against the limiting groove 1112, and the rotary disc 122 rotates relative to the telescopic member 121.

It can be understood that the position-limiting groove 1112 has a good function of limiting the position-limiting element 1211 and the elastic element 1212, so that the position-limiting element 1211 can elastically stretch and contract in the radial direction of the rotary table 122 relative to the position-limiting groove 1112 to limit the movement track thereof.

It can be understood that an end of the blocking member 1211 away from the center of the rotary plate 122 is spaced from the rotary plate 122 in the axial direction (as shown in fig. 2), so as to avoid friction generated by the contact between the blocking member 1211 and the rotary plate 122 when the rotary plate 122 rotates, so that the rotary plate 122 rotates more smoothly.

Referring to fig. 4a and 4b, in particular, the winding assembly 12 further includes a torsion elastic member 1222 and a cover case member 1224 disposed in the turntable 122. Optionally, the torsion elastic member 1222 is a coil spring including one end near the winding center and the other end far from the winding center. A receiving groove 1223 is formed at the center of the rotary plate 122, and the torsional elastic member 1222 is disposed in the receiving groove 1223. The cover 1224 covers the torsion spring 1222 in the receiving groove 1223.

It is understood that the receiving groove 1223 is defined by a wall surface protruding from the surface of the rotary plate 122.

The fixed column 1122 penetrates through the rotating disc 122 to the receiving groove 1223, one end of the torsional elastic element 1222, which is away from the rolling center, is fixed to a wall of the receiving groove 1223, one end of the torsional elastic element 1222, which is close to the rolling center, is fixed to the fixed column 1122, the rotating disc 122 has an elastic rotation force with respect to the second housing 112, when the rotating disc 122 rotates with respect to the second housing 112, the rotating disc 122 drives the end of the torsional elastic element 1222, which is away from the rolling center, to rotate, so that the torsional elastic element 1222 is continuously tightened, and the torsional elastic element 1222 has an elastic force of reverse rotation, that is, the rotating disc 122 has an elastic rotation.

Referring to fig. 3 and fig. 4a, at least one limiting member 1221 matching with the expansion member 121 is disposed at an edge of the rotating disc 122, and one end of the blocking member 1211 close to the limiting member 1221 can abut against the limiting member 1221. The limiting member 1221 is an arc-shaped bending plate disposed at an edge of the rotary plate 122 and protruding out of the surface of the rotary plate 122, and the arc-shaped bending plate is bent toward the telescopic member 121.

The blocking member 1211 abuts against a surface arc transition of one end of the limiting member 1221, so that the blocking member 1211 can pass through the limiting member 1221 smoothly, and when an end surface of the blocking member 1211 abuts against the limiting member 1221, the limiting member 1221 has an acting force towards the center direction of the turntable on the blocking member 1211.

It is understood that, in other embodiments, the limiting member 1221 is an arc-shaped bending plate disposed at the rotation center of the rotation disc 122 and protruding out of the surface of the rotation disc 122, the limiting member 1221 is bent toward the expansion member 121, and accordingly, the expansion member 121 is disposed at a position of the first housing 111 close to the edge of the rotation disc 122, as long as the expansion member 121 can rotate relative to the limiting member 1221.

It is understood that the maximum bending position of the limiting member 1221 may be located at the center of the limiting member 1221 in the length direction, or the maximum bending position of the limiting member 1221 may also be located at a position deviated from the center of the limiting member 1221 in the length direction.

The rotating disc 122 drives the limiting member 1221 to rotate relative to the expansion member 121, and the expansion member 121 and the limiting member 1221 can abut against each other or separate from each other, so that the expansion member 121 elastically expands or restores to a free state along the radial direction of the rotating disc 122. Specifically, when the turntable 122 rotates, after the blocking member 1211 passes through the limiting member 1221 and contacts with any one of the side surfaces of the limiting member 1221 close to the center of the turntable 122, the resultant force of the inertial force (or the external pulling force pulling the turntable 122) of the rotation of the turntable 122 and the rotation force of the torsional elastic member 1222 is greater than the elastic force of the telescopic elastic member 1212, so that the blocking member 1211 compresses the telescopic elastic member 1212, so that the blocking member 1211 contracts, and the rotation of the turntable 122 continues through the limiting member 1221. When the rotating plate 122 is stationary relative to the blocking element 1211 in a free state (the free state corresponds to the condition that the rotating plate 122 is not under the action of external pulling force or other types of external forces), the rotation force of the torsional elastic element 1222 is smaller than the elastic force of the elastic element 1212, and the blocking element 1211 abuts against the side surface of the limiting element 1221.

Referring to fig. 4c and fig. 5, a first outlet 1111 is disposed on a sidewall of the first casing 111, a second outlet 1121 is disposed on a sidewall of the second casing 112, one end of the transmission component 13 is exposed to the first outlet 1111, and an opposite end of the transmission component 13 is exposed to the second outlet 1121.

The transmission assembly 13 includes a first connector 131, a second connector 132, a circuit board 133, and a connection wire 134. The connecting wire 134 is wound around the outer wall of the accommodating groove 1223. The first connector 131 and the second connector 132 are used for connecting an electronic device, the first connector 131 is exposed out of the first outlet 1111, and when the connection wire 134 is wound to the shortest length, the first connector 131 can abut against the first outlet 1111 to stop winding the connection wire 134. The second connector 132 is exposed at the second outlet 1121, the first connector 131 is electrically connected to one end of the connection line 134, the other end of the connection line 134 is electrically connected to the circuit board 133, and the second connector 132 is electrically connected to the circuit board 133. The first connector 131 and the second connector 132 include any one of a Micro-USB connector, a Type-C connector, and a Lightning connector, and one of the first connector 131 and the second connector 132 is a male connector.

With continuing reference to fig. 4c and fig. 5, in particular, the circuit board 133 includes a first connection plate 1331, a terminal 1332 and a second connection plate 1333, the connection line 134 is electrically connected to the first connection plate 1331, one side of the terminal 1332 is electrically connected to the first connection plate 1331, and the opposite side of the terminal 1332 is electrically connected to the second connection plate 1333. The second connecting plate 1333 is fixed to the second housing 112, the terminal 1332 is connected to the first connecting plate 1331 in a snap-fit manner, the first connecting plate 1331 is fixed to the rotary plate 122, and the rotary plate 122 can drive the first connecting plate 1331 and the terminal 1332 to rotate, so that the connecting wire 134 is wound on the outer wall of the accommodating groove 1223 under the driving of the rotation of the first connecting plate 1331.

It can be understood that an annular conductive plate 1334 centered on the fixed pillar 1122 is disposed on a surface of the second connecting plate 1333 close to the terminal 1332, and the terminal 1332 is electrically connected to the annular conductive plate 1334, so that when the terminal 1332 rotates, the annular conductive plate 1334 can be electrically connected to the second connecting plate 1333.

Referring to fig. 6a to 6c, the working process of the retractable data line 1 is as follows:

with reference to fig. 6a-6b, first, the first joint 131 is pulled to pull the first joint 131 out of the housing 11 for a certain distance, and during the pulling process, the expansion member 121 elastically contracts when passing through the limiting member 1221, that is, when the expansion member 121 is pushed by an external force to abut against the limiting member 1221, the rotation disc 122 rotates. The first joint 131 is pulled out along the direction e by an external force, the rotating disc 122 rotates along the direction f, the expansion piece 121 passes through the first side surface a of the limiting piece 1221 and then elastically contracts along the first side surface a in the radial direction of the rotating disc 122 towards the center direction g of the rotating disc 122, and after passing through the first side surface a, the rotating disc 122 continues to rotate.

Referring to fig. 6c, when the length of the retractable data line 1 needs to be fixed after the first joint 131 is pulled, the rotating disc 122 is pulled until the retractable member 121 abuts against the limiting member 1221 (i.e. when the rotating disc 122 is stationary relative to the retractable member 121 in a free state), and the rotating disc 122 stops rotating when the first joint 131 is released. As shown in fig. 6c, the first joint 131 is pulled along the direction e, and the rotating disc 122 rotates along the direction f, until the telescopic member 121 contacts the second side surface b of the limiting member 1221, the first joint 131 is released, and the rotating disc 122 stops rotating by the telescopic member 121 abutting against the limiting member 1221.

With reference to fig. 6d-6e, when the retractable data line 1 needs to be rewound into the housing 11, as shown in fig. 6d, the first joint 131 is continuously pulled along the direction e, the turntable 122 rotates to make the limiting member 1221 away from the retractable member 121 by a distance, and then the first joint 131 is released, as shown in fig. 6e, the rotation force of the turntable 122 rotates along the direction i, when the retractable member 121 passes through the second side surface b of the limiting member 1221, the limiting member 1221 elastically contracts the retractable member 121 through the inclined surface b by the inertia effect, so that the turntable 122 continuously rotates until the first joint 131 abuts against the first outlet 1111 and stops.

The above is only a preferred embodiment of the present invention, and should not be limited to the present invention, and any modifications, equivalent replacements, and improvements made within the principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A flexible data line which characterized in that: the telescopic data line is used for connecting electronic equipment to transmit data or charge, and comprises a shell, a connecting line and at least one joint; the connecting wire is electrically connected with the joint;

the telescopic data line comprises a telescopic piece and a rotary disc, the rotary disc can rotate in the shell and has elastic rotary force, the telescopic piece is arranged along the radial direction of the rotary disc, and the telescopic piece can elastically stretch along the radial direction of the rotary disc;

the telescopic data line further comprises a limiting piece matched with the telescopic piece, the limiting piece is bent towards the telescopic piece, and one end, far away from the center of the turntable, of the telescopic piece can be abutted against the side face, close to the center of the turntable, of the limiting piece;

the telescopic piece and the limiting piece can rotate relatively and abut against or separate from each other along with the rotation, so that the telescopic piece can elastically stretch out and draw back or restore to a free state along the radial direction of the turntable.

2. The flex data line as recited in claim 1, wherein: the limiting piece is an arc-shaped bent plate arranged at the edge of the rotary table; or

The limiting part is an arc-shaped bent plate which is arranged at the rotating center of the rotating disc and protrudes out of the surface of the rotating disc.

3. The flex data line as recited in claim 1, wherein: the data line also comprises a circuit board accommodated in the shell, and the connecting line is electrically connected with the circuit board;

the connector is divided into a first connector and a second connector, the first connector is electrically connected with the connecting wire, and the second connector is electrically connected with the circuit board;

the first joint and the second joint are exposed out of the shell;

the first connector and the second connector are used for connecting electronic equipment.

4. The flex data line as recited in claim 3, wherein: the shell comprises a first shell, the first shell is close to the telescopic piece, and a limiting groove is formed in the position, relative to the telescopic piece, of the first shell and used for limiting the telescopic piece to elastically stretch in the radial direction of the rotary table.

5. The flex data line as recited in claim 3, wherein: when the turntable rotates, the telescopic piece is in an elastic contraction state along the sliding process of the limiting piece so as to adjust the length of the connecting line exposed out of the shell, when the turntable is static relative to the telescopic piece in a free state, the telescopic piece abuts against the limiting piece, and the connecting line is in a stretching stop state or a contraction state.

6. The flex data line as recited in claim 4, wherein: the telescopic piece comprises a telescopic elastic piece and a clamping piece, one end of the telescopic elastic piece is abutted to the limiting groove, and the opposite end of the telescopic elastic piece is connected with the clamping piece, so that the clamping piece can elastically stretch along the radial direction of the turntable;

one end of the clamping piece, which is far away from the center of the turntable, abuts against the limiting piece;

the clamping piece is abutted against the end face circular arc transition of one end of the limiting piece.

7. The flex data line as recited in claim 4, wherein: the shell also comprises a second shell, and the first shell covers the second shell;

the second shell is further provided with a fixing column, and the fixing column penetrates through the rotation center of the rotary table, so that the rotary table can rotate around the fixing column.

8. The flex data line as recited in claim 7, wherein: a first outlet is formed in the side wall of the first shell, and a second outlet is formed in the side wall of the second shell;

the first joint is exposed at the first outlet, and the second joint is exposed at the second outlet.

9. The flex data line as recited in claim 7, wherein: the rotary table is also provided with a torsional elastic piece and an accommodating groove for accommodating the elastic piece, and the fixed column penetrates through the accommodating groove;

the accommodating groove is formed by enclosing a convex wall surface of the rotary disc close to the surface of the second shell;

the torsional elastic piece comprises two mutually separated ends, one end of the torsional elastic piece is fixed at the accommodating groove, the other end of the accommodating groove is fixed at the fixed column, so that the torsional elastic piece is twisted to generate a rotary force when the rotary table rotates relative to the fixed column;

the connecting wire is wound on the outer wall of the accommodating groove.

10. The retractable data line of any of claims 7-9, wherein: the circuit board comprises a first connecting plate, a second connecting plate and a terminal, the first connecting plate is fixed with the turntable, the second connecting plate is fixed with the second shell, the terminal is arranged between the first connecting plate and the second connecting plate, the terminal is electrically connected with the first connecting plate and the second connecting plate, and the terminal is fixed with the first connecting plate;

the first connecting plate is electrically connected with the connecting wire, and the second connecting plate is electrically connected with the second joint;

the fixing column penetrates through the centers of the first connecting plate and the second connecting plate;

and the second connecting plate is provided with an annular conducting strip taking the fixed column as a circle center, and the terminal is electrically connected with the annular conducting strip.