Winding frame with clamping structure and telescopic line adopting winding frame

Abstract

The utility model discloses a reel with a clamping structure and a telescopic line adopting the reel, the reel comprises a substrate and a winding ring, the winding ring is fixedly arranged on the substrate, the winding ring is provided with a notch used for fixing the end of a coil spring, and a clamping hook is fixedly arranged above the notch. The telescopic line adopting the reel with the clamping structure comprises a shell and the reel, and the reel is mounted in the shell. The clamping hook structure is used for limiting the coil spring during installation, the structure is simple, installation is convenient, and the yield is high.

Description

TECHNICAL FIELD

[0001] The utility model discloses a retractable wire, especially a winding frame with clamping structure and a retractable wire using the winding frame, and belongs to the technical field of consumer electronics. BACKGROUND

[0002] The retractable wire is a wire material with a telescopic function, which can be generally divided into: (1) double telescopic wire, which can be contracted from both ends to the middle or stretched from the middle to both ends; (2) single telescopic wire, which can only be stretched and contracted from one end, and usually one end is fixed and the other end can be freely stretched.

[0003] The retractable wire can be usually used in electronic devices, such as mouse retractable wire, earphone retractable wire, charger retractable wire, data retractable wire, computer camera retractable wire and the like; can also be used in network communication, such as RJ45 network retractable wire, RJ11 telephone retractable wire and the like, and can also be used in occasions requiring adjustment of cable length, such as fan retractable wire, medical device retractable wire and the like. The retractable wire can be contracted into a smaller volume when not in use, facilitating carrying and storage, solving the problem of troublesome carrying of traditional straight lines, and being particularly suitable for people who often travel on business or travel.

[0004] The retractable wire in the prior art is internally provided with a winding frame, when the retractable wire is pulled, the reel automatically expands the data line to make it longer, and when the data line is released, the spring or other reel mechanism in the interior automatically retracts the data line into the winding frame to restore the original length. The structure for realizing this function is usually provided with a winding frame in the shell, the winding frame is provided with a winding ring, and the winding ring is usually internally provided with a coil spring, the data line is wound outside the winding ring, when the data line is stretched out, the coil spring is pulled to deform, and when the data line is retracted, the coil spring pulls the data line to be wound on the winding frame. When the coil spring is installed, it needs to be fixed in the winding frame by a clamping mechanism, the structure is relatively complex, installation is time-consuming and laborious, and the coil spring is prone to not being installed in place, causing problems such as insufficient smoothness of the data line. SUMMARY

[0005] In view of the above-mentioned defect of complex coil spring installation structure in the prior art retractable wire, the utility model provides a winding frame with clamping structure and a retractable wire using the winding frame, which uses a clamping hook structure to limit the coil spring during installation, has a simple structure, is convenient to install, and has high yield.

[0006] The utility model solves the technical problems by adopting the technical scheme of a winding frame with clamping structure, which comprises a base plate and a winding ring, the winding ring is fixedly arranged on the base plate, a notch for fixing the end of the coil spring is formed in the winding ring, and a clamping hook is fixedly arranged above the notch.

[0007] A retractable cord employing the reel with the snap structure as described above, the retractable cord comprising a housing and a reel, the reel being mounted in the housing.

[0008] The utility model discloses the technical scheme further still includes:

[0009] The base plate below the notch is provided with a process hole.

[0010] The outer side of the winding ring is fixedly provided with a retaining wall, a data line end mounting position is formed between the retaining wall and the winding ring, and a circuit board mounting position is formed below the base plate at the end of the data line end mounting position.

[0011] The base plate is provided with a center hole at the middle position.

[0012] The base plate is fixedly provided with a limiting outer sliding ring, a limiting inner sliding ring, an outer limiting edge and a clamping position, the limiting inner sliding ring is arranged on the inner side of the limiting outer sliding ring, an inner side sliding channel is formed between the limiting inner sliding ring and the limiting outer sliding ring, the outer limiting edge is arranged on the outer side of the limiting outer sliding ring, an outer side sliding channel is formed between the outer limiting edge and the limiting outer sliding ring, the limiting outer sliding ring is in the shape of "C", the clamping position is arranged at the opening of the limiting outer sliding ring, and a protrusion is arranged on the limiting inner sliding ring and corresponds to the clamping position.

[0013] The housing comprises a first shell and a second shell which are mounted together, a rotating shaft is fixedly arranged at the middle position in the first shell, and the reel is mounted on the rotating shaft.

[0014] A clamping opening is formed at the upper edge position of the first shell, a mounting hook is fixedly arranged at the corresponding position of the second shell, the mounting hook is clamped into the clamping opening, a first positioning pin is fixedly arranged at the edge position of the second shell, a first positioning hole is formed at the corresponding position of the first shell, and the first positioning pin is inserted into the first positioning hole.

[0015] A ball groove is fixedly arranged in the housing, balls are arranged in the ball groove, the balls directly or indirectly abut against the reel, the ball groove is fixedly arranged on the inner side of the second shell, the balls are arranged in the ball groove, the ball groove and the balls are correspondingly arranged in two groups or more, the ball groove and the balls in the two groups or more are evenly distributed around the center of the rotating shaft, the balls are in the shape of a sphere, the ball groove is in the shape of a cylinder, the inner diameter of the ball groove is greater than or equal to the diameter of the ball, and the depth of the ball groove is less than the diameter of the ball.

[0016] A bearing is sleeved on the rotating shaft and arranged between the rotating shaft and the reel.

[0017] The utility model discloses the technical scheme further still includes:

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the winding frame in this utility model.

[0020] Figure 2 This is a front view schematic diagram of the winding frame structure in this utility model.

[0021] Figure 3 This is a rear view schematic diagram of the winding frame structure in this utility model.

[0022] Figure 4 This is a side view of the winding frame structure in this utility model.

[0023] Figure 5 This is a three-dimensional structural diagram of the telescopic line in this utility model.

[0024] Figure 6 This is a schematic diagram of the disassembled structure of the telescopic line in this utility model.

[0025] Figure 7 This is a three-dimensional structural diagram of the telescopic line in this utility model from a second perspective.

[0026] Figure 8 This is a schematic diagram of the exploded view structure of the telescopic line in this utility model.

[0027] In the diagram, 1-substrate, 2-winding ring, 3-hook, 4-notch, 5-process hole, 6-barrier, 7-data cable end mounting position, 8-circuit board mounting position, 9-center hole, 10-limiting outer slip ring, 11-clamping position, 12-inner slide rail, 13-outer slide rail, 14-protrusion, 15-limiting inner slip ring, 16-outer limiting edge, 17-first housing, 18-bayonet, 19-shaft, 20-first positioning hole, 21-second housing, 22-mounting hook, 23-ball groove, 24-ball, 25-notch, 26-first positioning pin, 27-second positioning pin, 28-locking post, 29-winding frame, 30-first circuit board, 31-second circuit board, 32-through hole, 33-second positioning hole, 34-conductive spring module, 35-bearing. Detailed Implementation

[0028] This embodiment is a preferred embodiment of the present invention. All other embodiments that are the same as or similar to this embodiment in principle and basic structure are within the protection scope of the present invention.

[0029] Please refer to the appendix for details. Figure 1 Appendix Figure 2 and attached Figure 3This utility model mainly protects a winding frame with a snap-fit ​​structure. The winding frame is integrally manufactured and is divided into areas according to function. The winding frame mainly includes a base plate 1 and a winding ring 2. The winding ring 2 is fixedly mounted on the base plate 1. In this embodiment, the winding ring 2 is located on one side of the base plate 1 (defined as the front side in this utility model, and the other side of the base plate 1 is defined as the back side, or reverse side, or rear side). The winding ring 2 has a notch 4 for fixing the end of the coil spring. In this embodiment, the end of the coil spring is U-shaped. During installation, the end of the coil spring is hooked at the notch 4. A hook 3 is fixedly mounted above the notch 4. The hook 3 can block the end of the coil spring to achieve positioning. In this embodiment, the hook 3 can be located on one side or both sides of the notch 4. When the hook 3 is located on one side of the notch 4, the hook 3 is located on the side corresponding to the end of the coil spring. When the hook 3 is located on both sides of the notch 4, the coil spring can be a forward coil spring or a reverse coil spring, which increases the convenience of selection.

[0030] In this embodiment, the hook 3 is integrally injection molded during the production of the winding frame. A process hole 5 is provided on the substrate 1 below the notch 4 to facilitate demolding during injection molding. In specific implementation, the hook 3 can also be formed by cutting after the winding frame is processed.

[0031] In this embodiment, a retaining wall 6 is fixedly provided on the outside of the winding ring 2, thereby forming a data cable end mounting position 7 between the retaining wall 6 and the winding ring 2. A circuit board mounting position 8 is provided on the substrate 1 below the end of the data cable end mounting position 7. During assembly, a circuit board is provided at the position of the circuit board mounting position 8 for electrical connection with other modules. The end of the data cable is set at the position of the data cable end mounting position 7, and the end of the data cable is soldered to the circuit board. Due to the presence of the retaining wall 6, the end of the data cable can be protected to prevent it from being desoldered or damaged due to pulling or other reasons.

[0032] In this embodiment, a central hole 9 is provided in the middle of the substrate 1 for connecting with the rotating shaft.

[0033] In this embodiment, a limiting outer slip ring 10, a limiting inner slip ring 15, an outer limiting edge 16, and a locking position 11 are fixedly disposed on the back side of the substrate 1. The limiting inner slip ring 15 is disposed inside the limiting outer slip ring 10, thereby forming an inner slide rail 12 between the limiting inner slip ring 15 and the limiting outer slip ring 10. The limiting outer edge 16 is disposed outside the limiting outer slip ring 10, thereby forming an outer slide rail 13 between the outer limiting edge 16 and the limiting outer slip ring 10. The limiting outer slip ring 10 is C-shaped, and the locking position 11 is disposed at the opening of the limiting outer slip ring 10. In this embodiment, a protrusion 14 is provided on the limiting inner slip ring 15, and the protrusion 14 corresponds to the locking position 11. In use, the locking pin disposed inside the telescopic cable housing is located in the inner slide rail 12. When the data cable is pulled out, the locking pin slides clockwise in the inner slide rail 12 (as shown in the attached figure). Figure 3 (Described in the direction shown) When the cable slides to the position of protrusion 14, the locking pin will move outward along the protrusion 14 due to the influence of protrusion 14. After passing the locking position 11, it will slide into the outer slide rail 13 and continue to slide. When the data cable is released, the data cable will retract under the pull of the coil spring. At this time, the locking pin will slide counterclockwise in the outer slide rail 13. When it slides to the position of locking position 11, the locking pin will lock in the locking position 11, achieving self-locking. When the data cable is pulled lightly again, the locking pin will disengage from the locking position 11 and enter the inner slide rail 12. When the data cable is released, the locking pin will slide counterclockwise in the inner slide rail 12 until the cable is retracted.

[0034] Please refer to the appendix for details. Figure 5 To be continued Figure 8 This utility model also protects a telescopic cable using the above-mentioned winding frame, which mainly includes a housing and a winding frame 29, with the winding frame 29 installed inside the housing.

[0035] In this embodiment, the outer shell includes a first shell 17 and a second shell 21 installed together. The separate shell design facilitates assembly. Alternatively, a shell-and-cover structure can be used. In this embodiment, a latch 18 is provided at the upper edge of the first shell 17, and a mounting hook 22 is fixedly provided at a corresponding position on the second shell 21. When the first shell 17 and the second shell 21 are assembled, the mounting hook 22 engages with the latch 18 to achieve relative fixation between the first shell 17 and the second shell 21. In this embodiment, a first positioning pin 26 is fixedly provided at the edge of the second shell 21, and a first positioning hole 20 is provided at a corresponding position on the first shell 17. When the first shell 17 and the second shell 21 are assembled, the first positioning pin 26 is inserted into the first positioning hole 20, providing auxiliary positioning.

[0036] In this embodiment, a rotating shaft 19 is fixedly installed at the middle position inside the first housing 17. The center hole 9 on the winding frame 29 is installed on the rotating shaft 19, allowing it to rotate freely along the rotating shaft 19. When in use, the cable (not shown in the figure) is wound around the winding ring 2. A coil spring (not shown in the figure) is provided in the cavity inside the winding ring 2, which can be used to provide power for the cable when it is retracted.

[0037] In this embodiment, a ball groove 23 is fixedly provided inside the outer shell, and a ball 24 is provided in the ball groove 23. The ball 24 directly or indirectly abuts against the winding frame 29. When a traditional reel rotates, sliding friction occurs between it and the outer shell, resulting in relatively large frictional force. This invention, through the design of the ball 24, converts the sliding friction between the winding frame 29 and the outer shell into rolling friction, making the sliding smoother. In this embodiment, the ball groove 23 is fixedly provided inside the second shell 21, and the ball 24 is provided in the ball groove 23. There are two or more sets of ball grooves 23 and ball 24, which are evenly distributed around the center of the rotating shaft 19 to ensure more even force distribution and prevent misalignment during rotation. In this embodiment, there are three sets of ball grooves 23 and ball 24. In specific implementations, the specific number can be set according to actual needs.

[0038] In this embodiment, the structure is used in power lines or data lines. It includes a first circuit board 30 and a second circuit board 31, which are interconnected for power transmission. In this embodiment, one or more conductive spring modules 34 are fixedly installed on the second circuit board 31. Each conductive spring module 34 has one or more conductive springs. A conductive ring (not shown in the figure) is provided at a corresponding position on the first circuit board 30. The conductive ring and the conductive spring abut against each other for power transmission. In this embodiment, three sets of conductive spring modules 34 are provided to effectively ensure the reliability of power transmission. In specific implementations, one, two, or more sets can also be provided. In specific implementations, this utility model structure can also be used in other occasions, and the corresponding structure can be adapted accordingly.

[0039] In this embodiment, the first circuit board 30 is fixedly installed together with the winding frame 29. The cable wound on the winding ring 2 is electrically connected to the first circuit board 30. The second circuit board 31 is installed on the second housing 21. In this embodiment, a second positioning pin 27 is fixedly provided inside the second housing 21. A second positioning hole 33 is provided on the second circuit board 31. The second positioning pin 27 is inserted into the second positioning hole 33, which can realize the relative fixation between the second circuit board 31 and the second housing 21.

[0040] In this embodiment, the ball 24 is spherical, and the ball groove 23 is cylindrical. The inner diameter of the ball groove 23 is greater than or equal to the diameter of the ball 24, and the depth of the ball groove 23 is less than the diameter of the ball 24, so that part of it is exposed outside the ball groove 23. A through hole 32 is provided on the second circuit board 31 at the position corresponding to the ball groove 23. The ball groove 23 passes through the through hole 32, so that the ball 24 contacts the first circuit board 30, and the ball 24 can slide on the first circuit board 30.

[0041] In this embodiment, a notch 25 is provided on the second housing 21. The notch 25 can be one, two, three or more as needed. Part of the second circuit board 31 is exposed at the notch 25 for connection with the outside, such as connection with a car charger connector. Different interfaces can be replaced according to different needs.

[0042] In this embodiment, a PUSH-PUSH structure is provided between the winding frame 29 and the second housing 21, and a locking post 28 is provided at the corresponding position on the second housing 21. The locking post 28 can achieve self-locking during cable use.

[0043] In this embodiment, a bearing 35 is mounted on the rotating shaft 19. The bearing 35 is positioned between the rotating shaft 19 and the winding frame 29 to make their relative rotation smoother.

[0044] This utility model uses a hook structure to limit the coil spring during installation. It has a simple structure, is easy to install, and has a high yield rate.

Claims

1. A reel with a click structure, characterized by: The winding frame comprises a base plate (1) and a winding ring (2), the winding ring (2) is fixedly arranged on the base plate (1), a notch (4) for fixing the end of the coil spring is arranged on the winding ring (2), and a clamping hook (3) is fixedly arranged above the notch (4).

2. The reel with a click structure according to claim 1, characterized in that: A process hole (5) is arranged on the base plate (1) below the notch (4).

3. The reel with a click structure according to claim 1, characterized in that: A retaining wall (6) is fixedly arranged on the outer side of the winding ring (2), a data line end mounting position (7) is formed between the retaining wall (6) and the winding ring (2), and a circuit board mounting position (8) is arranged on the base plate (1) below the end of the data line end mounting position (7).

4. The reel with a click structure according to claim 1, wherein: A center hole (9) is arranged at the middle position of the base plate (1).

5. The reel with a click structure according to claim 1, wherein: A limiting outer sliding ring (10), a limiting inner sliding ring (15), an outer limiting edge (16) and a clamping position (11) are fixedly arranged on the back of the base plate (1), the limiting inner sliding ring (15) is arranged on the inner side of the limiting outer sliding ring (10), an inner side sliding channel (12) is formed between the limiting inner sliding ring (15) and the limiting outer sliding ring (10), the outer limiting edge (16) is arranged on the outer side of the limiting outer sliding ring (10), an outer side sliding channel (13) is formed between the outer limiting edge (16) and the limiting outer sliding ring (10), the limiting outer sliding ring (10) is in the shape of "C", the clamping position (11) is arranged at the opening of the limiting outer sliding ring (10), and a protrusion (14) is arranged on the limiting inner sliding ring (15) and corresponds to the clamping position (11).

6. A retractable cord using the reel with the click structure according to any one of claims 1 to 5, characterized by: The retractable line comprises a shell and a winding frame (29), and the winding frame (29) is installed in the shell.

7. The retracting cord of claim 6, wherein: The shell comprises a first shell (17) and a second shell (21) which are installed together, a rotating shaft (19) is fixedly arranged at the middle position inside the first shell (17), and the winding frame (29) is installed on the rotating shaft (19).

8. The retracting cord of claim 7, wherein: A clamping opening (18) is arranged at the upper edge position of the first shell (17), an installation hook (22) is fixedly arranged at the corresponding position of the second shell (21), the installation hook (22) is clamped into the clamping opening (18), a first positioning pin (26) is fixedly arranged at the edge position of the second shell (21), a first positioning hole (20) is arranged at the corresponding position of the first shell (17), and the first positioning pin (26) is inserted into the first positioning hole (20).

9. The retracting cord of claim 7, wherein: A ball groove (23) is fixedly arranged inside the shell, balls (24) are arranged in the ball groove (23), the balls (24) directly or indirectly abut against the winding frame (29), the ball groove (23) is fixedly arranged on the inner side of the second shell (21), the balls (24) are arranged in the ball groove (23), the ball groove (23) and the balls (24) are correspondingly arranged in two groups or more, the two groups or more of ball grooves (23) and balls (24) are evenly distributed along the center of the rotating shaft (19) with the center of the rotating shaft (19) as the center, the balls (24) are in the shape of a sphere, the ball groove (23) is in the shape of a cylinder, the inner diameter of the ball groove (23) is greater than or equal to the diameter of the balls (24), and the depth of the ball groove (23) is less than the diameter of the balls (24).

10. The retracting cord of claim 7, wherein: The rotating shaft (19) is sleeved with a bearing (35), and the bearing (35) is arranged between the rotating shaft (19) and the bobbin (29).

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