Kite wheel brake device

Abstract

The utility model provides a kite wheel brake device, which relates to the technical field of kite folding and unfolding control appliances, and comprises an inner wheel disc and an outer wheel disc which are rotatably mounted together, two brake blocks are hinged on the inner wheel disc and are used for braking the outer wheel disc, a cam is arranged between the two brake blocks, and the inner wheel disc and the outer wheel disc are hinged on the cam. The cam is installed on the inner wheel disc in a rotating mode, the cam abuts against one brake block, a length-adjustable connecting rod assembly is jointly connected between the cam and the other brake block, and a reset element is arranged between at least one brake block and the inner wheel disc. According to the brake device, the outer wheel disc is braked, meanwhile, the brake distance between the two brake blocks and the outer wheel disc is adjusted, and the situation of brake delay caused by abrasion of the brake blocks is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of kite launching and reeling control devices, and in particular to a kite wheel brake device. Background Technology

[0002] Existing kite reels consist of an inner reel and an outer reel that are rotatably mounted together. During kite flying, the user holds the inner reel with one hand and uses the other hand to rotate the outer reel to reel in and out the kite line. As the kite's altitude and wind force change, the rotation speed of the outer reel gradually increases. Existing kite reels are equipped with a braking device to slow down the outer reel. The existing braking device consists of two brake blocks rotatably mounted on the inner reel, connected by a linkage rod. A drive lever pushes one of the brake blocks to rotate. Under the action of the linkage rod, both brake blocks come into contact with the braking surface of the outer reel, achieving deceleration of the outer reel through friction. However, after a period of use, the brake blocks gradually wear down. As the brake blocks wear down, the braking distance between the brake blocks and the outer reel increases, requiring the drive lever to rotate at a larger angle to engage the brake blocks with the outer reel, resulting in braking delay.

[0003] Therefore, a kite wheel braking device is needed to solve the above problems. Utility Model Content

[0004] This utility model proposes a kite wheel braking device, which realizes braking of the outer wheel disc through two brake blocks, a cam and an adjustable length linkage assembly. At the same time, it also realizes the adjustment of the braking distance between the two brake blocks and the outer wheel disc, avoiding the braking delay caused by brake block wear.

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

[0006] A kite reel braking device includes an inner disc and an outer disc rotatably mounted together. Two brake blocks are hinged to the inner disc, and the two brake blocks are used to brake the outer disc. A cam is provided between the two brake blocks, and the cam is rotatably mounted on the inner disc. The cam abuts against one of the brake blocks. The cam and the other brake block are connected by a length-adjustable linkage assembly. A reset element is provided between at least one brake block and the inner disc.

[0007] As a preferred technical solution, the length-adjustable linkage assembly includes a first linkage and a second linkage, which are threaded together by a connecting element. The free end of the first linkage is hinged to a cam, and the free end of the second linkage is hinged to the brake block.

[0008] As a preferred technical solution, the cam is rotatably mounted on the inner wheel disk via a rotating shaft. The rotating shaft passes through the inner wheel disk and is fixedly mounted with a brake handle. The cam is provided with a brake protrusion and a linkage part. The brake protrusion and the linkage part are located on both sides of the rotating shaft, and the linkage part is hinged to the first connecting rod.

[0009] As a preferred technical solution, the inner wheel is provided with a plurality of limiting blocks, each of the limiting blocks being provided with a limiting groove, and each limiting groove being adapted to the first connecting rod and the second connecting rod.

[0010] As a preferred technical solution, the connecting element is a cylindrical nut.

[0011] By adopting the above technical solution, the beneficial effects of this utility model are as follows:

[0012] Because the kite reel braking device includes an adjustable-length linkage assembly, during the use of this device, by rotating the cam, the brake block that abuts against the cam rotates towards the outer wheel disc. At the same time, under the linkage action of the adjustable-length linkage assembly, the other brake block rotates towards the outer wheel disc. In this utility model, the adjustable-length linkage assembly realizes the linkage of the two brake blocks. When it is necessary to brake the outer wheel disc, simply rotate the cam to engage the two brake blocks with the outer wheel disc. Under the action of friction, the two brake blocks brake the outer wheel disc simultaneously. After braking is completed, release the cam, and under the action of the reset element, the two brake blocks separate from the outer wheel disc.

[0013] This invention achieves the engagement or disengagement of two brake blocks with the outer wheel disc through the cooperation of a cam, an adjustable length linkage assembly, and a reset element, thereby realizing the braking of the outer wheel disc.

[0014] After the braking device has been used for a period of time, the outer sides of the two brake pads will wear. Since the length adjustable linkage assembly includes a first linkage, a second linkage, and a connecting element, by rotating the connecting element, the connecting element moves towards the cam. As the connecting element moves, the first connecting rod located on the outer side of the connecting element becomes shorter, causing the cam to rotate. Under the push of the cam, the brake pad that is against the cam rotates towards the outer wheel disc. At the same time, the second connecting rod located on the outer side of the connecting element becomes longer, causing the other brake pad to rotate towards the outer wheel disc.

[0015] This invention achieves adjustment of the lengths of the first and second connecting rods by rotating the connecting element, thereby adjusting the braking distance between the two brake blocks and the outer wheel disc, thus shortening the braking response time and avoiding braking delay caused by brake block wear. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a structural schematic diagram of the present invention from another angle;

[0019] Figure 3 This is a reference diagram showing the state during braking;

[0020] Figure 4 This is a schematic diagram of the rotating shaft.

[0021] The components are: 1. Inner wheel disc; 2. First brake block; 3. Second brake block; 4. Outer wheel disc; 5. Rotary shaft; 6. Brake handle; 7. Cam; 8. First connecting rod; 9. Second connecting rod; 10. Tension spring; 11. Brake protrusion; 12. Linkage part; 13. Limiting block; 14. Limiting groove; 15. Cylindrical nut. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1-4 As shown, the kite reel braking device includes an inner disc 1 and an outer disc 4 rotatably mounted together. Two brake blocks are hinged to the inner disc 1, including a first brake block 2 and a second brake block 3. The first brake block 2 and the second brake block 3 are used to brake the outer disc 4. A cam 7 is provided between the first brake block 2 and the second brake block 3. The cam 7 is rotatably mounted on the inner disc 1 and abuts against the first brake block 2. The cam 7 and the second brake block 3 are connected by a length-adjustable linkage assembly. At least one brake block is provided with a reset element between itself and the inner disc 1. In this invention, the reset element is a tension spring 10.

[0024] The length-adjustable linkage assembly includes a first linkage 8 and a second linkage 9. The first linkage 8 and the second linkage 9 are connected together by a connecting element. The free end of the first linkage 8 is hinged to the cam 7, and the free end of the second linkage 9 is hinged to the second brake block 3.

[0025] Furthermore, the cam 7 is rotatably mounted on the inner wheel 1 via the rotating shaft 5. The rotating shaft 5 passes through the inner wheel 1 and is fixedly mounted with the brake handle 6. The cam 7 is provided with a brake protrusion 11 and a linkage part 12. The brake protrusion 11 and the linkage part 12 are located on both sides of the rotating shaft 5. The linkage part 12 is hinged to the first connecting rod 8.

[0026] Furthermore, the inner wheel 1 is provided with several limiting blocks 13, each limiting block 13 is provided with a limiting groove 14, and each limiting groove 14 is adapted to the first connecting rod 8 and the second connecting rod 9.

[0027] Secondly, the connecting element is a cylindrical nut 15.

[0028] In summary, this utility model achieves braking of the outer wheel disc through two brake blocks, a cam, and an adjustable-length linkage assembly. At the same time, it also enables adjustment of the braking distance between the two brake blocks and the outer wheel disc, thus avoiding braking delay caused by brake block wear.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A kite reel braking device, comprising an inner reel and an outer reel rotatably mounted together, wherein two brake blocks are hinged to the inner reel, and the two brake blocks are used to brake the outer reel, characterized in that, A cam is provided between the two brake blocks. The cam is rotatably mounted on the inner wheel disc. The cam abuts against one of the brake blocks. The cam and the other brake block are connected by a length-adjustable linkage assembly. A reset element is provided between at least one brake block and the inner wheel disc.

2. The kite reel braking device according to claim 1, characterized in that, The length-adjustable linkage assembly includes a first linkage and a second linkage, which are threaded together by a connecting element. The free end of the first linkage is hinged to a cam, and the free end of the second linkage is hinged to the brake block.

3. The kite reel braking device according to claim 2, characterized in that, The cam is rotatably mounted on the inner wheel via a rotating shaft. The rotating shaft passes through the inner wheel and is fixedly mounted with a brake handle. The cam is provided with a brake protrusion and a linkage part. The brake protrusion and the linkage part are located on both sides of the rotating shaft. The linkage part is hinged to the first connecting rod.

4. The kite reel braking device according to claim 2, characterized in that, The inner wheel is provided with a plurality of limiting blocks, each of which is provided with a limiting groove, and each limiting groove is adapted to the first connecting rod and the second connecting rod.

5. The kite reel braking device according to claim 2, characterized in that, The connecting element is a cylindrical nut.

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