Telescopic line module

Abstract

The utility model relates to the technical field of telescopic cables, in particular to a telescopic cable module, which comprises a winding shell, a winding mechanism arranged in the winding shell and a connecting wire wound on the winding mechanism, and is characterized in that the winding mechanism is arranged in the winding shell, and the connecting wire is wound on the winding mechanism. When the connecting line is not used, the connecting line can be wound in the winding shell through the winding mechanism, and the connecting line can be prevented from being knotted, wound or damaged. In the use process, the device can be pulled out at will and is convenient to use; moreover, a sliding electric plate electrically connected with the connecting wire is arranged in the winding shell, and a wiring electric plate with a wiring position exposed is arranged in the winding shell, so that an input power line or a signal line of the equipment can be connected with the connecting wire through the sliding electric plate and the sliding electric plate, the connection strength is high, and a cable of the equipment can be telescopically adjusted in length; and cable winding and knotting are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of telescopic cables, in particular to a telescopic cable module. Background Art

[0002] With the development of technology, the usage scenarios of cables are becoming increasingly extensive. From home entertainment devices to industrial automation systems, the convenience and safety of cables are particularly important.

[0003] Currently, the cables in the prior art are usually of a fixed length, with plugs provided at one or both ends to connect the device to the power supply. Such cables often have problems of entanglement, knotting, and space occupation during use, bringing a lot of inconvenience to users; moreover, when storing and putting away the cables, they are easily affected by the external environment, resulting in damage or performance degradation. Summary of the Utility Model

[0004] To solve the problems in the above background art, the utility model provides a telescopic cable module, which can adjust the length of the cable, avoid entanglement or knotting caused by the overlong cable, and at the same time can store the cable to avoid cable damage.

[0005] The solution adopted by the utility model to solve its technical problems is: a telescopic cable module, including a winding housing, a winding mechanism rotatably installed in the winding housing, and a connecting wire wound around the winding mechanism. A sliding electric plate electrically connected to the connecting wire is installed on the winding mechanism, a wiring electric plate for wiring is installed in the winding housing, the sliding electric plate and the wiring electric plate can be slidably in close contact and electrically connected, and a wiring port exposing the wiring position of the wiring electric plate is provided on the surface of the winding housing.

[0006] Further, the winding housing includes a face cover and a bottom cover that are buckled with each other. The winding mechanism is rotatably installed in the bottom cover, the wiring electric plate is fixedly installed in the face cover, the sliding electric plate is arranged on the side of the winding mechanism close to the face cover. When the face cover and the bottom cover are buckled, the sliding electric plate is in sliding contact and electrically connected with the wiring electric plate, and a stop-turn elastic piece for locking the rotation of the winding mechanism is also rotatably installed in the face cover.

[0007] Further, the wiring electric plate includes a sliding connection part laid on the surface of the face cover and a wiring part arranged on one side of the sliding connection part and extending to the wiring port. A plurality of welding contact points are provided on the surface of the wiring part;

[0008] The sliding electric plate includes a PCB board arranged on the surface of the side of the winding mechanism close to the face cover and a plurality of sliding connection seats arranged equidistantly around the PCB board. A plurality of metal elastic pieces protruding towards the wiring electric plate are provided on each sliding connection seat, and the metal elastic pieces abut against the surface of the sliding connection part.

[0009] Further, a connecting column is provided at the center of the bottom cover. The winding mechanism includes an orbital bracket rotatably inserted on the connecting column and a spring provided on the orbital bracket and clamped with the connecting column. A sliding track is provided on the surface of the orbital bracket facing the face cover, and the end of the anti-rotation elastic piece is slidably fitted in the sliding track.

[0010] Further, the anti-rotation elastic piece includes a main body portion and elastic arms provided on both sides of the main body portion. Installation columns and sliding blocks are respectively provided at both ends of the main body portion. The sliding block is slidably fitted in the sliding track. An anti-rotation groove is provided in the face cover, and an installation hole is provided in the anti-rotation groove. The anti-rotation elastic piece is movably fitted in the anti-rotation groove and the installation column is rotatably inserted into the installation hole.

[0011] Further, an orbital groove is provided on the surface of the orbital bracket close to the face cover. A guiding strip is provided in the orbital groove and is arranged circumferentially around the rotation center of the orbital bracket. The guiding strip and the side wall of the orbital bracket form the sliding track. A anti-rotation block is also provided in the orbital groove between both ends of the guiding strip. One end of the anti-rotation block extending towards the elongation of the connecting line is a tip, and an anti-rotation opening for limiting the sliding of the anti-rotation elastic piece along the sliding track is provided at one end of the anti-rotation block towards the winding of the connecting line.

[0012] Further, a winding portion is provided on the surface of the orbital bracket close to the bottom cover. The connecting line is wound on the winding portion. A wire receiving groove is provided on the winding portion. The spring is provided in the wire receiving groove. A clamping portion is provided at the side wall of the wire receiving groove. The outer side of the spring is clamped with the clamping portion.

[0013] Further, an installation groove is provided on the surface of the orbital bracket facing away from the winding portion. The sliding electric plate is fixedly installed in the installation groove. An opening is provided in the installation groove and penetrates through the end face of the orbital bracket. The connecting line passes through the opening and is electrically connected to the sliding electric plate.

[0014] Further, a wire clamping block is also provided on the surface of the orbital bracket provided with the winding portion. The wire clamping block and the winding portion form a wire clamping channel. The end of the connecting line is clamped in the wire clamping channel.

[0015] In summary, the beneficial effects of the present utility model are as follows:

[0016] 1. By arranging a winding mechanism in the winding housing and winding the connecting line on the winding mechanism, the connecting line can be wound in the winding housing through the winding mechanism when not in use, which can avoid knotting, tangling or damage of the connecting line; and it can be pulled out at will during use, which is convenient to use.

[0017] 2. The utility model sets a sliding electric plate electrically connected to the connecting wire inside the winding housing, and sets a wiring electric plate with the wiring position exposed inside the winding housing, so that the input power supply wire or signal wire of the device can be connected to the connecting wire through the sliding electric plate, with high connection strength, and enables the cable of the device to be telescopically adjusted in length, avoiding cable entanglement and knotting.

[0018] The above description is only an overview of the technical solution of the utility model. In order to be able to more clearly understand the technical means of the utility model, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the utility model more obvious and understandable, the following specific preferred embodiments are given and described in detail in conjunction with the accompanying drawings as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of this embodiment;

[0020] Figure 2 is an exploded view of this embodiment;

[0021] Figure 3 is an exploded view of this embodiment from another angle;

[0022] Figure 4 is a schematic structural diagram of the anti-rotation elastic piece and the face cover installation of this embodiment;

[0023] Figure 5 is a schematic structural diagram when the anti-rotation elastic piece is fitted with the sliding track of this embodiment;

[0024] Figure 6 is a schematic structural diagram of the track bracket of this embodiment;

[0025] In the figure: 1. Winding housing; 11. Face cover; 111. Anti-rotation groove; 112. Installation hole; 12. Bottom cover; 121. Connecting column; 2. Winding mechanism; 21. Track bracket; 211. Track groove; 212. Guide strip; 213. Anti-rotation block; 214. Anti-rotation opening; 215. Installation groove; 216. Opening; 22. Spring; 23. Sliding track; 24. Winding part; 241. Wire receiving groove; 242. Clamping part; 25. Wire clamping block; 3. Connecting wire; 4. Sliding electric plate; 41. PCB board; 42. Sliding connection seat; 43. Metal elastic piece; 5. Wiring electric plate; 51. Sliding connection part; 52. Wiring part; 53. Welding contact point; 6. Wiring port; 7. Anti-rotation elastic piece; 71. Main body part; 711. Installation column; 712. Sliding block; 72. Elastic arm. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to make the content of the utility model easier to be clearly understood, the following further illustrates the utility model according to specific embodiments and in conjunction with the accompanying drawings.

[0027] It should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc. used in this text is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. Unless otherwise specified, the meaning of "plurality" is two or more.

[0028] Unless otherwise clearly specified and defined, the terms "mounted", "connected", and "coupled" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

[0029] As Figures 1 to 3 shown, a telescopic wire module can be connected to an input power cord or signal line to facilitate the adjustment of the cable length of the device, and can also store the cable to avoid damage caused by the cable being wound and knotted. The telescopic wire module of this embodiment includes a winding housing 1, a winding mechanism 2 disposed in the winding housing 1, and a connecting wire 3 wound around the winding mechanism 2. The connecting wire 3 of this embodiment can be telescoped through the winding mechanism 2, so that when in use, an appropriate length can be pulled out for use, and when not in use, it can be wound into the winding housing 1 through the winding mechanism 2 for storage and protection, avoiding the connecting wire 3 from being wound and knotted or damaged. Among them, a sliding electric plate 4 is installed on the winding mechanism 2 of this embodiment. One end of the connecting wire 3 wound inside the winding mechanism 2 is electrically connected to the sliding electric plate 4, and a wiring electric plate 5 for wiring with the device power cord or signal line is installed inside the winding housing 1. At the same time, the wiring electric plate 5 and the sliding electric plate 4 can be slidably and closely electrically connected, so that the input power cord and signal line of the device can be connected to the connecting wire 3 through the wiring electric plate 5 and the sliding electric plate 4, thereby extending the cable length of the device. And through the slidable and close electrical connection between the wiring electric plate 5 and the sliding electric plate 4, when the connecting wire 3 is unreeled or reeled through the winding mechanism 2, the sliding electric plate 4 and the wiring electric plate 5 can relatively slide while being in close contact, so as to ensure the electrical connection between the two, and further ensure the connection between the device cable and the connecting wire 3. A wiring port 6 for exposing the wiring position of the wiring electric plate 5 for welding is provided on the surface of the winding housing 1 of this embodiment. The input power cord and signal line of the device can be welded to the wiring electric plate 5 through the wiring port 6, and the connection strength is high.

[0030] Specifically, as Figure 2 and Figure 3As shown in the figure, the winding housing 1 of this embodiment includes a face cover 11 and a bottom cover 12 that are buckled together. Among them, the winding mechanism 2 is rotatably installed inside the bottom cover 12, the wiring circuit board 5 is fixedly installed inside the face cover 11, and the sliding circuit board 4 is arranged on the side of the winding mechanism 2 close to the face cover 11. When the face cover 11 and the bottom cover 12 are buckled together, the sliding circuit board 4 can be in electrical sliding contact with the wiring circuit board 5 to realize the electrical connection between the input power line and signal line of the device and the connecting line 3. Moreover, during the sliding contact between the sliding circuit board 4 and the wiring circuit board 5, when the winding mechanism 2 rotates to drive the sliding circuit board 4 to rotate during the telescopic process of the connecting line 3, the wiring circuit board 5 and the sliding circuit board 4 can always maintain electrical connection, thus avoiding power-off of the device.

[0031] As Figure 2 and Figure 3 shown in the figure, the wiring circuit board 5 of this embodiment includes a sliding connection part 51 laid on the surface of the face cover 11 and a wiring part 52 arranged on one side of the sliding connection part 51 and extending to the wiring port 6. A plurality of welding contact points 53 are provided on the surface of the wiring part 52. Users can conveniently weld the input power line and signal line of the device to the welding contact points 53 through the wiring port 6, and then realize the connection with the connecting line 3 through the contact between the sliding connection part 51 and the sliding circuit board 4, greatly improving the connection strength and reducing the problem of circuit interruption caused by plug loosening or falling off.

[0032] The sliding circuit board 4 of this embodiment includes a PCB board 41 and a sliding connection seat 42 arranged on the PCB board 41. Among them, a plurality of metal elastic pieces 43 protruding toward the wiring circuit board 5 are provided on the sliding connection seat 42. When the face cover 11 and the bottom cover 12 of the winding housing 1 are buckled together so that the sliding circuit board 4 contacts the wiring circuit board 5, the metal elastic pieces 43 on the sliding connection seat 42 can abut against the sliding connection part 51 of the wiring circuit board 5 and produce a certain deformation, thereby ensuring the stable connection between the two. Moreover, at least two sliding connection seats 42 are provided. In this embodiment, three sliding connection seats 42 are provided, and the three sliding connection seats 42 are arranged equidistantly around the surface of the PCB board 41, which can not only ensure stable electrical connection, but also improve the balance performance of the telescopic wire module in this embodiment, thus facilitating the stable telescoping of the connecting line 3.

[0033] As Figure 2 and Figure 3 shown in the figure, a connecting column 121 is provided at the center of the bottom cover 12 of this embodiment. The winding mechanism 2 includes a track bracket 21 and a spring 22. Among them, the track bracket 21 is rotatably inserted on the connecting column 121, which can effectively reduce the vibration and displacement that may occur during use. The spring 22 is arranged on the bracket and is clamped with the connecting column 121. When the track bracket 21 rotates to telescopic the connecting line 3, the spring 22 can be tightened, and then the connecting line 3 can automatically contract under the action of the spring 22, making it convenient to use.

[0034] Moreover, asFigures 2 to 5 As shown, in order to allow the user to pull out the connecting line 3 to a suitable length as needed and fix the pulled-out length to avoid automatic winding of the connecting line 3 during use, a stop spring 7 for locking the rotation of the winding mechanism 2 is rotatably installed in the surface cover 11 of this embodiment. The user can pull out the connecting line 3 to a corresponding length as needed. After releasing the stop spring 7, the winding mechanism 2 is locked, so that the length of the pulled-out connecting line 3 can be freely used.

[0035] Specifically, Figure 3 , Figure 4 and Figure 5 As shown, the anti-rotation spring piece 7 of this embodiment includes a main body 71 and elastic arms 72 arranged on both sides of the main body 71, wherein the two ends of the main body 71 are respectively provided with a mounting column 711 and a sliding block 712, and the sliding block 712 is slidably engaged in the sliding track 23, so that when the connecting line 3 is extended and retracted to rotate the track bracket 21, the sliding block 712 can slide in the sliding track 23; and, in this embodiment, a anti-rotation groove 111 is provided in the cover 11, and a mounting hole 112 is provided in the anti-rotation groove 111, and the anti-rotation spring piece 7 as a whole can be movably engaged in the anti-rotation groove 111 When the sliding block 712 slides along the sliding track 23, the anti-rotation spring piece 7 as a whole can make a certain degree of rotation in the anti-rotation groove 111 through the mounting column 711 and the mounting hole 112 according to the shape of the sliding track 23, and then squeeze the elastic arms 72 on both sides to make the sliding column escape from the sliding track 23, and then adjust the position of the anti-rotation spring piece 7 through the elastic potential energy of the squeeze, so that the anti-rotation spring piece 7 locks the rotation of the track bracket 21, thereby achieving the fixation of the length of the connecting line 3.

[0036] like Figure 5 As shown, the surface of the track bracket 21 close to the face cover 11 is provided with a track groove 211, wherein the track groove 211 is provided with a guide bar 212 circumferentially arranged around the rotation center of the track bracket 21, so that the guide bar 212 can be combined with the side wall of the track bracket 21 to form a sliding track 23 that slides with the sliding block 712. A stop block 213 is also provided in the track groove 211 of the present embodiment, and the stop block 213 is arranged between the two ends of the guide bar 212, so that when the track bracket 21 rotates, the sliding block 712 of the stop spring 7 can slide along the sliding track 23 and squeeze the elastic arms 72 on both sides. After the length of the connecting line 3 is fixed, the track bracket 21 rotates under the drive of the clockwork 22, so that the sliding block 712 retreats along the sliding track 23. At this time, the stop spring 7 rotates under the elastic action of the elastic arm 72 and rotates the sliding block 712 to the position of the stop block 213 to clamp it, so that the connecting line 3 can stop extending and retracting.

[0037] Specifically, the end of the stop block 213 of the present embodiment that extends toward the connecting line 3 is a pointed end, and the end of the stop block 213 that is wound toward the connecting line 3 is provided with a stop opening 214 for limiting the sliding of the stop spring 7 along the sliding track 23. When the user pulls the connecting line 3 out to the required length, the sliding block 712 of the stop spring 7 retreats to the position of the stop block 213 along the sliding track 23 under the drive of the spring 22, and is clamped in the stop opening 214 through the elastic arm 72; when the connecting line 3 needs to be completely wound up, the connecting line 3 is pulled a short distance to make the sliding block 712 of the stop spring 7 slide out of the stop opening 214. At this time, the elastic arm 72 is not squeezed, so that after the connecting line 3 is released, the sliding block 712 can continue to slide along the sliding track 23 until the connecting line 3 is completely wound up. If you want to stop at a certain point at this time, pull back a circle to make the anti-rotation spring slide along the sliding track 23 to the anti-rotation opening 214 again, so that the connecting line 3 can stop contracting. The telescopic method is convenient and easy for users to pull out the required length according to their needs.

[0038] like Figure 2 and Figure 6 As shown, the track bracket 21 of this embodiment is provided with a winding portion 24 on the surface of one side close to the bottom cover 12, and the connecting wire 3 is wound on the winding portion 24, and a wire opening is provided on the side wall of the retractable shell. The other end of the connecting wire 3 connected to the winding mechanism 2 can be extended to the outside of the wire opening for connection, and when the user pulls the connecting wire 3, the track bracket 21 can be driven to rotate to achieve the elongation of the connecting wire 3. At the same time, when winding, the spring 22 drives the track bracket 21 to rotate, so that the connecting wire 3 can be automatically wound.

[0039] In order to achieve the connection between the connecting wire 3 and the electrical connection component, the surface of the track bracket 21 of the present embodiment facing away from the winding part 24 is provided with a mounting groove 215, and the sliding electric board 4 is fixedly installed in the mounting groove 215, and at the same time, an opening 216 is provided in the mounting groove 215, which is arranged through the end face of the track bracket 21, so that the end of the connecting wire 3 wound on the winding part 24 can pass through the opening 216 and thereby be electrically connected to the sliding electric board 4; at the same time, the surface of the track bracket 21 of the present embodiment where the winding part 24 is arranged is also provided with a wire clamping block 25, and the wire clamping block 25 is combined with the outer wall of the windable part 24 to form a wire clamping channel, so that the end of the connecting wire 3 can be clamped in the clamping channel, so that when the user pulls the connecting wire 3 to extend it, the track bracket 21 can be driven to rotate to tighten the spring 22, thereby realizing the subsequent automatic contraction of the connecting wire 3, and it can also prevent the connecting wire 3 from being excessively stretched, resulting in the disconnection between the sliding electric board 4 and affecting the normal connection of the cable.

[0040] like Figure 6As shown in the figure, a wire groove 241 is provided on the winding part 24 of this embodiment. The spring 22 is arranged in the wire groove 241. At the same time, a clamping part 242 is provided at the side wall of the wire groove 241, and the outside of the spring 22 is clamped by the clamping part 242. Thus, when the track bracket 21 rotates, the outer wall of the spring 22 can be driven to rotate, and the center of the spring 22 is clamped on the connecting column 121. Furthermore, the spring 22 can be tightened under the rotation of the track bracket 21. Then, when the connecting wire 3 contracts, the spring 22 can drive the track bracket 21 to rotate so as to contract the connecting wire 3.

[0041] In summary, the effects of this embodiment are as follows: By arranging a winding mechanism 2 in the winding housing 1 and winding the connecting wire 3 on the winding mechanism 2 in this embodiment, when the connecting wire 3 is not in use, it can be wound in the winding housing 1 through the winding mechanism 2, which can prevent the connecting wire 3 from knotting, tangling or being damaged; and it can be pulled out randomly during use, which is convenient to use. At the same time, in this embodiment, a sliding electric plate 4 electrically connected to the connecting wire 3 is arranged in the winding housing 1, and a wiring electric plate 5 exposing the wiring position is arranged in the winding housing 1, so that the input power cord or signal line of the device can be connected to the connecting wire 3 through the sliding electric plate 4 and the sliding electric plate 5, with high connection strength, and the cable of the device can be telescopically adjusted in length to avoid cable winding and knotting.

[0042] The above-described embodiments are only the preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby. Any non-substantial changes and modifications made by those skilled in the art based on the present invention shall fall within the protection scope of the present invention.

Claims

1. A telescopic line module, characterized in that: The invention comprises a winding shell (1), a winding mechanism (2) rotatably mounted in the winding shell (1), and a connecting wire (3) wound on the winding mechanism (2); a sliding electric plate (4) electrically connected to the connecting wire (3) is mounted on the winding mechanism (2); a wiring electric plate (5) for wiring is mounted in the winding shell (1); the sliding electric plate (4) and the wiring electric plate (5) can be slidably pressed against each other and electrically connected; and a wiring port (6) exposing the wiring position of the wiring electric plate (5) is provided on the surface of the winding shell (1).

2. The telescopic line module according to claim 1, characterized in that: The winding shell (1) comprises a front cover (11) and a bottom cover (12) which are interlocked, the winding mechanism (2) can be rotatably installed in the bottom cover (12), the wiring board (5) is fixedly installed in the front cover (11), the sliding board (4) is arranged on the side of the winding mechanism (2) close to the front cover (11), when the front cover (11) and the bottom cover (12) are interlocked, the sliding board (4) and the wiring board (5) are in sliding contact and electrically connected, and a rotation-stopping spring (7) for locking the winding mechanism (2) is also rotatably installed in the front cover (11).

3. The telescopic line module according to claim 2, characterized in that: The wiring board (5) comprises a sliding connection portion (51) laid on the surface of the cover (11) and a wiring portion (52) arranged on one side of the sliding connection portion (51) and extending to the wiring port (6), and a plurality of welding contact points (53) are arranged on the surface of the wiring portion (52); The sliding electric board (4) comprises a PCB board (41) arranged on the surface of a side of the winding mechanism (2) close to the cover (11) and a plurality of sliding connection seats (42) equidistantly arranged around the PCB board (41), each of the sliding connection seats (42) being provided with a plurality of metal spring sheets (43) protruding toward one side of the wiring electric board (5), and the metal spring sheets (43) abutting against the surface of the sliding connection portion (51).

4. The telescopic line module according to claim 2, characterized in that: A connecting column (121) is provided at the center of the bottom cover (12); the winding mechanism (2) comprises a track bracket (21) rotatably plugged into the connecting column (121) and a spring (22) provided on the track bracket (21) and clamped with the connecting column (121); a sliding track (23) is provided on the surface of the track bracket (21) facing the side of the surface cover (11); and the end of the anti-rotation spring (7) is slidably engaged in the sliding track (23).

5. The telescopic line module according to claim 4, characterized in that: The anti-rotation spring sheet (7) comprises a main body (71) and elastic arms (72) arranged on both sides of the main body (71); the two ends of the main body (71) are respectively provided with a mounting column (711) and a sliding block (712); the sliding block (712) is slidably engaged in the sliding track (23); a anti-rotation groove (111) is provided in the surface cover (11); a mounting hole (112) is provided in the anti-rotation groove (111); the anti-rotation spring sheet (7) is movably engaged in the anti-rotation groove (111) and the mounting column (711) is rotatably inserted into the mounting hole (112).

6. The telescopic line module according to claim 5, characterized in that: A track groove (211) is provided on the surface of the track bracket (21) close to the surface cover (11), a guide bar (212) is provided in the track groove (211) and is arranged circumferentially around the rotation center of the track bracket (21), the guide bar (212) is combined with the side wall of the track bracket (21) to form the sliding track (23), and a stop block (213) is also provided in the track groove (211) and is arranged between the two ends of the guide bar (212), the end of the stop block (213) extending toward the connecting line (3) is a pointed end, and the end of the stop block (213) winding toward the connecting line (3) is provided with a stop opening (214) for limiting the anti-rotation spring sheet (7) to slide along the sliding track (23).

7. The telescopic line module according to claim 4, characterized in that: A winding portion (24) is provided on a surface of one side of the track bracket (21) close to the bottom cover (12), the connecting wire (3) is wound on the winding portion (24), a wire receiving groove (241) is provided on the winding portion (24), the mainspring (22) is arranged in the wire receiving groove (241), a clamping portion (242) is provided on the side wall of the wire receiving groove (241), and the outer side of the mainspring (22) is clamped with the clamping portion (242).

8. The telescopic line module according to claim 7, characterized in that: The surface of the track bracket (21) facing away from the winding portion (24) is provided with a mounting groove (215), the sliding electric plate (4) is fixedly mounted in the mounting groove (215), the mounting groove (215) is provided with an opening (216) penetrating the end surface of the track bracket (21), and the connecting wire (3) passes through the opening (216) to be electrically connected to the sliding electric plate (4).

9. The telescopic line module according to claim 8, characterized in that: The surface of the track bracket (21) on which the winding portion (24) is arranged is also provided with a wire clamping block (25), and the wire clamping block (25) is combined with the winding portion (24) to form a wire clamping channel, and the end of the connecting wire (3) is clamped in the wire clamping channel.

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