Clamping mechanism for winding device

Abstract

The utility model discloses a position clamping mechanism for a winding device, the position clamping mechanism is provided with three parts, namely a gear, a swing arm and an elastic piece, the gear is provided with a clamping block with sharp corners, a clamping position or a vacant position is formed between every two adjacent sharp corners, the swing arm is provided with shifting teeth and a hook, and the elastic piece is arranged on the elastic piece. When the hook is clamped in the clamping position, the elastic piece is stretched, the swing arm cannot move and bounce, and therefore the swing arm assists in controlling stretching and positioning of materials of the winding device. When the hook is located in a vacant position, the elastic piece restores, the swing arm is in a loosened state, and therefore the winding device recycles materials; in the recovery process, every time the hook is clamped in the clamping position, the data line is stopped, the recovery speed can be slowed down, the functions of controlling length positioning and the recovery speed are achieved, the structure is simple, and rapid production and assembly are facilitated.

Description

A locking mechanism for a winding device Technical Field

[0001] This utility model relates to the field of winding device technology, and in particular to a locking mechanism for a winding device. Background Technology

[0002] In daily life, winding devices are used in devices such as telescopic data cables, measuring tapes, power strips, and vacuum cleaners. The locking mechanism in the winding device is used to position the length of the material being wound and to control the winding speed.

[0003] See patent document CN2024115424039, which discloses a retractable tape measure with emergency stop and deceleration. This retractable tape measure includes a limiting assembly, which comprises a stop element, a deceleration rib, a first elastic element, a locking rib, and a limiting rib. The limiting assembly decelerates the tape wheel hub, preventing it from accelerating too quickly. However, the structure of this limiting assembly is overly complex, leading to cumbersome production and installation processes. Summary of the Invention

[0004] To address the problem of overly complex structures in existing winding devices, this invention provides a simple and easily assembled winding device positioning mechanism.

[0005] The technical solution of this utility model is as follows:

[0006] This utility model discloses a locking mechanism for a winding device, comprising:

[0007] The gear has a locking block, and the locking block has several sharp corners, with a locking position or a gap formed between two adjacent sharp corners;

[0008] The swing arm includes a tooth and a hook. The locking block is located between the tooth and the hook. The tooth touches the sharp corner as the swing arm swings and drives the gear to rotate. The hook is locked in the locking position or located on the side of the empty position as the swing arm swings.

[0009] An elastic element, which is connected to the swing arm.

[0010] Furthermore, the pointed angle includes a first short pointed angle, a first long pointed angle, a second short pointed angle, and a second long pointed angle, wherein the first short pointed angle and the second short pointed angle are diagonally opposite each other, and the first long pointed angle and the second long pointed angle are diagonally opposite each other.

[0011] Furthermore, the swing arm also includes a protruding foot and a connecting end, both of which are located away from the pry bar and the hook, and the connecting end is connected to the elastic element.

[0012] Furthermore, the swing arm also includes a mounting hole located on the side of the hook.

[0013] Furthermore, the gear is provided with a shaft hole, which is located at the center of the snap-fit ​​block.

[0014] Furthermore, the elastic element includes a collar and an elastic portion, the collar being fixedly connected to the elastic portion, and the collar being sleeved on the connecting end.

[0015] Furthermore, the connecting end includes a convex shaft and a stop block. One end of the convex shaft is fixedly disposed on the swing arm, the stop block is fixedly disposed on the other end of the convex shaft, the collar is disposed on the outer wall of the convex shaft, and the stop block blocks the collar.

[0016] Furthermore, the elastic element is any one of a helical compression spring, a serpentine spring, or an elastic rope.

[0017] The beneficial effects of this utility model are as follows:

[0018] The locking mechanism consists of three parts: a gear, a swing arm, and an elastic element. The gear has a locking block with sharp corners, and adjacent sharp corners form a locking or empty space. The swing arm has a tooth and a hook. The tooth touches the sharp corner as the swing arm swings, driving the gear to rotate. When the hook is locked in the locking position, the elastic element is stretched, and the swing arm cannot move, thus the swing arm assists in controlling the material stretching and positioning of the winding device. When the hook is in the empty space, the elastic element returns to its original position, the swing arm is released, and the winding device recycles the material, realizing the functions of controlling length positioning and controlling recycling speed. At the same time, the structure is simple and easy to produce and assemble quickly. Attached Figure Description

[0019] Figure 1 is a schematic diagram of the overall structure of a locking mechanism for a winding device according to the present invention.

[0020] Figure 2 is a schematic diagram of the overall structure of the gear of the locking mechanism for a winding device according to this utility model;

[0021] Figure 3 is a schematic diagram of the overall structure of the swing arm of the locking mechanism for a winding device according to this utility model;

[0022] Figure 4 is a top view of the gear structure of the locking mechanism for a winding device according to this utility model.

[0023] Figure 5 is an exploded structural diagram of a locking mechanism for a winding device according to the present invention.

[0024] Figure 6 is an exploded structural diagram of a locking mechanism for a winding device according to the present invention, taking a telescopic data cable as an example.

[0025] Figure 7 is a schematic diagram of the installation of the locking mechanism after omitting some parts of the structure in Figure 6;

[0026] Figure 8 is a schematic diagram of the exploded structure of Figure 7;

[0027] Reference numerals: 1. Gear, 11. Snap block, 12. Sharp corner, 13. Shaft hole, 14. Snap position, 15. Hole, 2. Swing arm, 21. Shifting tooth, 22. Hook, 23. Protruding foot, 24. Connecting end, 241. Protruding shaft, 242. Stop block, 25. Mounting hole, 3. Elastic element, 31. Collar, 32. Elastic part, 4. Turntable, 41. Notch, 42. Arc groove, 5. Housing, 51. Column, 52. Fitting position. Detailed Implementation

[0028] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] It should be noted that when a component is referred to as "mounted on", "set on", "covered on", "sleeved on", or "locked on" another component, it can be directly on the other component or indirectly on the other component.

[0030] It should be understood that in the description of this utility model, "several" means two or more, unless otherwise explicitly specified.

[0031] Furthermore, the terms “inner,” “upper,” “between,” “both sides,” “one side,” “top,” “bottom,” “side,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] It should be noted that the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature.

[0033] It should be noted that the "and / or" in this article is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Here, A and B can be singular or plural, respectively.

[0034] Referring to Figures 1-5, this utility model provides a locking mechanism for a winding device. The winding device contains movable material and includes a gear 1, a swing arm 2, and an elastic element 3. The gear 1 is provided with a locking block 11, which has four sharp corners 12. A locking position 14 or a gap 15 is formed between two adjacent sharp corners 12. The swing arm 2 includes a tooth 21 and a hook 22. The locking block 11 is located between the tooth 21 and the hook 22. The tooth 21 touches the sharp corner as the swing arm 2 swings. 12 drives the gear 1 to rotate, and the hook 22 is locked in the locking position 14 or located on the side of the empty position 15 as the swing arm 2 swings; the elastic element 3 is a helical compression spring, the elastic element 3 is connected to the swing arm 2, and the elastic element 3 is used to provide elastic restoring force to the swing arm 2. When the material in the winding device is pulled out, the swing arm 2 swings with the rotation of the winding device, and the elastic element 3 undergoes elastic deformation with the swing arm 2; when all the material in the winding device is retracted and is in a static state, the elastic element 3 returns to its original state.

[0035] Specifically, in order to make the hook 22 more stable in the locking position 14 and prevent slippage, the pointed corner 12 includes a first short pointed corner 121, a first long pointed corner 122, a second short pointed corner 123 and a second long pointed corner 124. The first short pointed corner 121 and the second short pointed corner 123 are diagonally arranged, and the first long pointed corner 122 and the second long pointed corner 124 are diagonally arranged.

[0036] Both locking positions 14 are concave shapes formed by a long and a short fit. Compared with four short pointed corner structures of the same length, due to the long and short fit, the hook 22 is difficult to move out of the concave shape from the longer edge of the long pointed corner. This makes the hook 22 more stable when it is in the locking position 14 and less prone to slippage.

[0037] The swing arm 2 also includes a protruding foot 23 and a connecting end 24. The protruding foot 23 and the connecting end 24 are both located away from the tooth 21 and the hook 22. The connecting end 24 is connected to the elastic element 3. Generally, the winding device has rotating parts such as a turntable or rotating shaft. When the protruding foot 23 is used to abut against the rotating parts of the winding device, the swing arm 2 cannot move, that is, the material stretched from the winding device will be in a fixed state.

[0038] The elastic element 3 includes a collar 31 and an elastic part 32. The collar 31 is fixedly connected to the elastic part 32 and is sleeved on the connecting end 24. There are two collars 31, located at both ends of the elastic part 32 respectively. One collar 31 is sleeved on the swing arm 2, and the other collar 31 is used to sleeve on the housing of the winding device.

[0039] The connecting end 24 includes a convex shaft 241 and a stop block 242. One end of the convex shaft 241 is fixedly disposed on the swing arm 2, and the stop block 242 is fixedly disposed on the other end of the convex shaft 241. The collar 31 is disposed on the outer wall of the convex shaft 241, and the stop block 242 blocks the collar 31. The stop block 242 is used to prevent the collar 31 from falling off the swing arm 2.

[0040] The swing arm 2 also includes a mounting hole 25, which is located on the side of the hook 22.

[0041] The gear 1 is provided with a shaft hole 13, which is located at the center of the snap-fit ​​block 11.

[0042] Referring to Figures 6-8, taking a retractable data cable as an example, the retractable data cable combined with the locking mechanism will clearly illustrate how the locking mechanism works.

[0043] The retractable data cable contains a turntable 4 and a housing 5. The turntable 4 has several notches 41 along its edge, into which the protruding feet 23 of the swing arm 2 can be engaged to secure the turntable 4. The housing 5 contains two pillars 51. A mounting hole 25 is fitted onto one of the taller pillars 51, and a shaft hole 13 is fitted onto the shorter pillar 51. The housing 5 also has an arc-shaped groove 42 into which the gear 1 is located. The housing 5 contains a fitting position 52, into which one end of the elastic element 3 is fitted, and the other end of the elastic element 3 is fitted into the connecting end 24 of the swing arm 2. When the retractable data cable is in use, the user pulls the cable, causing the turntable 4 to rotate. The turntable 4 then drives the swing arm 2 to swing. The teeth 21 on the swing arm 2 contact the pointed corner 12 during the swing and drive the gear 1 to rotate. The hook 2... 2. The swing arm 2 swings and is locked in the locking position 14 or located on the side of the empty position 15. When the hook 22 of the gear 1 is locked in the locking position 14, the elastic element 3 deforms elastically and the protrusion 23 is locked in the recess 41. The swing arm 2 cannot move and the turntable 4 also stops rotating, thereby assisting the swing arm 2 in controlling the extension length of the telescopic data cable. When the hook 22 is in the empty position 15, the elastic element 3 returns to its original state, the protrusion 23 of the swing arm 2 leaves the recess 41, and the turntable 4 rotates until the data cable is fully stored in the housing 5 and then stops rotating, thereby retracting the telescopic data cable. During the retraction process, whenever the protrusion 23 of the swing arm 2 is locked in the recess 41, the data cable is stopped, which can slow down the retraction speed and realize the functions of controlling the length positioning and controlling the retraction speed. At the same time, the structure is simple and easy to produce and assemble quickly.

[0044] The above-described embodiments are merely one implementation of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A locking mechanism for a winding device, characterized in that, include: Gear (1), the gear (1) is provided with a locking block (11), the locking block (11) is provided with several sharp corners (12), and a locking position (14) or a void (15) is formed between two adjacent sharp corners (12); swing arm (2), the swing arm (2) includes a tooth (21) and a hook (22), the locking block (11) is provided between the tooth (21) and the hook (22), the tooth (21) touches the sharp corner (12) as the swing arm (2) swings and drives the gear (1) to rotate, the hook (22) is locked in the locking position (14) or located on the side of the void (15) as the swing arm (2) swings; An elastic element (3) is connected to the swing arm (2).

2. The locking mechanism for the winding device according to claim 1, characterized in that, The pointed angle (12) includes a first short pointed angle (121), a first long pointed angle (122), a second short pointed angle (123), and a second long pointed angle (124). The first short pointed angle (121) and the second short pointed angle (123) are diagonally opposite each other, and the first long pointed angle (122) and the second long pointed angle (124) are diagonally opposite each other.

3. The locking mechanism for the winding device according to claim 1, characterized in that, The swing arm (2) also includes a protruding foot (23) and a connecting end (24). The protruding foot (23) and the connecting end (24) are both located away from the prying tooth (21) and the hook (22). The connecting end (24) is connected to the elastic element (3).

4. The locking mechanism for the winding device according to claim 1, characterized in that, The swing arm (2) also includes a mounting hole (25) located on the side of the hook (22).

5. The locking mechanism for the winding device according to claim 1, characterized in that, The gear (1) is provided with a shaft hole (13), which is located at the center of the snap-fit ​​block (11).

6. The locking mechanism for the winding device according to claim 3, characterized in that, The elastic element (3) includes a collar (31) and an elastic part (32). The collar (31) is fixedly connected to the elastic part (32) and is sleeved on the connecting end (24).

7. The locking mechanism for the winding device according to claim 6, characterized in that, The connecting end (24) includes a convex shaft (241) and a stop block (242). One end of the convex shaft (241) is fixedly mounted on the swing arm (2), and the stop block (242) is fixedly mounted on the other end of the convex shaft (241). The collar (31) is located on the outer wall of the convex shaft (241), and the stop block (242) blocks the collar (31).

8. The locking mechanism for the winding device according to claim 1, characterized in that, The elastic element (3) is any one of a helical compression spring, a serpentine spring, or an elastic rope.

Images