Kite wheel braking device

Abstract

This utility model proposes a kite wheel braking device, relating to the field of kite wheel technology. It includes a main shaft, a core, a braking assembly, a support component, and a drive assembly. The inner wall of the core has a braking inner circumferential surface. The main shaft is rotatably mounted on the core. The braking assembly is fitted onto the main shaft and includes a pair of brake shoes, both of which are adapted to the braking inner circumferential surface. The support component is fitted onto the main shaft. This utility model employs a braking structure where two brake shoes mate with the braking inner circumferential surface, which is not only structurally reliable and low-cost but also has a self-braking function, achieving rapid braking of the core.

Description

Technical Field

[0001] This utility model relates to the field of kite wheel technology, and in particular to a kite wheel braking device. Background Technology

[0002] During kite flying, kite reels are used. The rotation speed of the spool is controlled by a braking device on the kite reel. Especially in severe weather such as strong winds, the braking device needs a large braking force to quickly brake the spool. However, the braking device on the existing kite reel uses the friction generated by the pressing of the end faces of multiple friction pads to brake the spool. This braking structure is complex, does not have a self-braking function, and has insufficient braking force. When faced with the huge pulling force brought by strong winds, it is difficult to achieve rapid braking of the spool, which poses a safety hazard.

[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 adopts a braking structure in which two brake shoes cooperate with the inner circumferential surface of the brake. It is not only reliable in structure and low in cost, but also has a self-braking function, realizing rapid braking of the core.

[0005] The technical solution of this utility model is implemented as follows: The kite reel braking device includes the main shaft and also includes: A cylindrical core, wherein the inner wall of the cylindrical core is provided with a braking inner circumferential surface, and the main shaft is rotatably mounted on the cylindrical core; A braking assembly, which is mounted on the main shaft, includes a pair of brake shoes, both of which are adapted to the inner circumferential surface of the brake. A spreading member for spreading the brake shoes, the spreading member being fitted onto the main shaft; A drive assembly for driving the spindle to move axially.

[0006] As a preferred technical solution, the supporting member is provided with a supporting inclined surface.

[0007] As a preferred technical solution, each brake shoe includes a brake shoe bracket and a friction pad, and each brake shoe bracket is provided with a spreading guide that is adapted to the spreading inclined surface.

[0008] As a preferred technical solution, the supporting member is a supporting sleeve, and the supporting sleeve has a supporting inclined surface on its outer circumferential surface, which is annular; both supporting guide members are rotating sleeves, and the two rotating sleeves are respectively rotatably mounted on the corresponding brake shoe brackets. Both rotating sleeves are perpendicular to the main shaft, and the supporting inclined surface abuts against the outer circumferential surface of the two rotating sleeves.

[0009] As a preferred technical solution, the braking assembly includes a mounting bracket, both brake shoe brackets are hinged to the mounting bracket, and a pair of first reset elements are provided between the two brake shoe brackets.

[0010] As a preferred technical solution, a second reset element is provided between the mounting bracket and the spreading sleeve, and the second reset element is sleeved on the main shaft.

[0011] As a preferred technical solution, the main shaft is rotatably mounted on the core via a core bearing; a bushing is provided between the mounting bracket and the core bearing, and the spreading sleeve abuts against the kite wheel bracket bearing; or a bushing is provided between the spreading sleeve and the core bearing, and between the mounting bracket and the kite wheel bracket bearing, respectively.

[0012] As a preferred technical solution, the drive assembly includes a bracket mounting seat rotatably mounted on the main shaft, a push sleeve rotatably mounted on the bracket mounting seat, a brake sleeve slidably mounted on the bracket mounting seat, the brake sleeve rotatably mounted on the main shaft, and several annularly arranged stroke adjustment grooves are provided on the adjacent end faces of the push sleeve and the brake sleeve, with a ball bearing commonly provided in each pair of opposite stroke adjustment grooves, and a brake handle is clamped onto the push sleeve.

[0013] As a preferred technical solution, the depth and width of each stroke adjustment groove on the push sleeve gradually increase in the clockwise direction, and the depth and width of each stroke adjustment groove on the brake sleeve gradually increase in the counterclockwise direction.

[0014] By adopting the above technical solution, the beneficial effects of this utility model are as follows: Since the kite reel braking device includes a braking assembly and a drive component, during use, the main shaft is slidably mounted on the kite reel bracket, and the bracket mounting seat is fixedly mounted on the kite reel bracket. Under the action of the drive component, the main shaft moves axially, thereby squeezing the braking assembly and the spreading component. The spreading component quickly spreads the two brake shoes apart, and the brake shoes cooperate with the inner circumferential surface of the brake to brake the cylinder core. Since the cylinder core and the winding reel are integrated, the braking of the winding reel is also achieved.

[0015] This utility model adopts a braking structure in which two brake shoes cooperate with the inner circumferential surface of the brake. It is not only reliable and inexpensive, but also has a self-braking function, which can cope with the huge pulling force of kites in strong winds and realize the rapid braking of the winding reel integrated with the core, thus reducing safety hazards.

[0016] Since the spreading component is a spreading sleeve with a spreading inclined surface, and the spreading guide is a rotating sleeve, the spreading inclined surface abuts against the two rotating sleeves. When the drive assembly drives the main shaft to move axially, it squeezes the mounting bracket and the spreading sleeve. Guided by the spreading inclined surface, the two brake shoes are spread apart. Furthermore, the rotating sleeve converts the sliding friction between the spreading sleeve and the two brake shoe brackets into rolling friction, reducing the resistance during spreading and making the spreading action of the two brake shoes smoother and less strenuous. Attached Figure Description

[0017] 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.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Schematic diagram of the central braking assembly; Figure 3 for Figure 2 Schematic diagram of the mounting bracket; Figure 4 for Figure 2 A schematic diagram of the structure of one of the brake shoes; Figure 5 for Figure 1 Schematic diagram of the structure of the central support sleeve; Figure 6 This is a reference diagram showing the state of the braking assembly during braking. Figure 7 The diagram shows the state of the sleeve being installed on the bracket mounting base; Figure 8 This is a schematic diagram of the brake sleeve structure; Figure 9 A reference diagram showing the state in which one of the ball bearings is located within the stroke adjustment groove; Figure 10 A schematic diagram of the main shaft; Figure 11 This is a schematic diagram of the structure of Example 2.

[0019] The components are: 1. Main shaft; 2. Core; 3. Inner circumferential surface of brake; 4. Brake shoe; 5. Spreading inclined surface; 6. Brake shoe bracket; 7. Friction plate; 8. Spreading sleeve; 9. Rotating sleeve; 10. Mounting bracket; 11. First reset element; 12. Second reset element; 13. Core bearing; 14. Bushing; 15. Kite wheel bracket bearing; 16. Brake bracket mounting base; 17. Push sleeve; 18. Brake sleeve; 19. Stroke adjustment groove; 20. Ball bearing; 21. Brake handle; 22. Kite wheel bracket. Detailed Implementation

[0020] 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.

[0021] Example 1: like Figures 1-10 As shown in the diagram, the kite reel braking device includes a main shaft 1, and also includes: The cylinder core 2 has a braking inner circumferential surface 3 on its inner wall, and the main shaft 1 is rotatably mounted on the cylinder core 2.

[0022] The braking assembly is mounted on the main shaft 1. The braking assembly includes a pair of brake shoes 4, both of which are adapted to the inner circumferential surface 3 of the brake.

[0023] The support is used to open the brake shoe 4, and the support is mounted on the main shaft 1.

[0024] A drive assembly used to drive spindle 1 to move axially.

[0025] like Figure 1 As shown, the support member is provided with a support slope 5.

[0026] Each brake shoe 4 includes a brake shoe bracket 6 and a friction plate 7. Each brake shoe bracket 6 is provided with a spreading guide that is adapted to the spreading inclined surface 5.

[0027] like Figures 1-6 As shown, the supporting member is a supporting sleeve 8, and the outer peripheral surface of the supporting sleeve 8 is provided with a supporting inclined surface 5, which is annular. The two supporting guide members are both rotating sleeves 9, which are rotatably mounted on the corresponding brake shoe brackets 6. The two rotating sleeves 9 are both set perpendicular to the main shaft 1, and the supporting inclined surface 5 abuts against the outer peripheral surface of the two rotating sleeves 9.

[0028] like Figure 2As shown, the brake assembly includes a mounting bracket 10, with two brake shoe supports 6 hinged to the mounting bracket 10. A pair of first reset elements 11 are provided between the two brake shoe supports 6. Both first reset elements 11 are tension springs. Each brake shoe support 6 includes a hinge shaft for mounting a rotating sleeve 9. The hinge shaft is not shown in the figure. One end of the first reset element 11 is hooked onto the hinge shaft of one of the brake shoe supports 6, and the other end of the first reset element 11 is hooked onto the other brake shoe support 6.

[0029] A second reset element 12 is provided between the mounting bracket 10 and the spreading sleeve 8. The second reset element 12 is sleeved on the main shaft 1 and is a compression spring.

[0030] During the process of resetting the brake spindle 1, under the action of the second reset element 12, the mounting bracket 10 and the spreading sleeve 8 are rapidly reset along the axial direction. At the same time, under the action of the two first reset elements 11, the two brake shoes 4 are rapidly reset, thereby causing the two friction pads 7 to quickly separate from the inner circumferential surface 3 of the brake, which has a relatively fast return capability.

[0031] The main shaft 1 is rotatably mounted on the core 2 via the core bearing 13. A bushing 14 is provided between the mounting bracket 10 and the core bearing 13. The spreading sleeve 8 abuts against the kite wheel bracket bearing 15.

[0032] like Figures 7-11 As shown, the drive assembly includes a bracket mounting base 16 rotatably mounted on the main shaft 1, a push sleeve 17 rotatably mounted on the bracket mounting base 16, and a brake sleeve 18 slidably mounted on the bracket mounting base 16. The brake sleeve 18 is rotatably mounted on the main shaft 1. Several annular stroke adjustment grooves 19 are provided on the adjacent end faces of the push sleeve 17 and the brake sleeve 18. A ball bearing 20 is provided in each pair of opposite stroke adjustment grooves 19. A brake handle 21 is clamped on the push sleeve 17.

[0033] The depth and width of the adjustment groove 19 on the push sleeve 17 gradually increase in the clockwise direction, while the depth and width of the adjustment groove 19 on the brake sleeve 18 gradually increase in the counterclockwise direction.

[0034] Example 2: like Figure 11 As shown, this embodiment is basically the same as the first embodiment, except that a bushing 14 is provided between the support sleeve 8 and the cylindrical bearing 13 and between the mounting bracket 10 and the kite wheel bracket bearing 15.

[0035] When using this device, the main shaft 1 is slidably mounted on the kite wheel bracket 22. The main shaft 1 and the kite wheel bracket bearing 15 on the kite wheel bracket 22 are in clearance fit. The bracket mounting seat 16 is fixedly mounted on the kite wheel bracket 22. The winding reel and the core 2 are integrally set. The winding reel is not shown in the figure.

[0036] Since the kite reel braking device includes a drive assembly, when it is necessary to brake and decelerate the winding reel, the brake handle 21 is turned, which pushes the sleeve 17 to rotate synchronously. The ball 20 moves from the end with the shallow groove of the corresponding stroke adjustment groove 19 to the end with the deep groove. The ball 20 pushes the brake sleeve 18 to move along the main shaft 1 away from the core 2. The brake sleeve 18 drives the main shaft 1 to move synchronously, thereby realizing the axial movement of the main shaft 1. Through the compression of the mounting bracket 10 and the spreading sleeve 8 by the bushing 14, the two brake shoes 4 rotate outward. The friction plates 7 on the two brake shoes 4 are in contact with the inner circumferential surface 3 of the brake, thereby braking the core 2. Since the winding reel and the core 2 are integrated, the braking of the winding reel is also realized.

[0037] The axial movement of the main shaft 1 is achieved by the cooperation of the ball bearing 20 and the stroke adjustment groove 19. The axial movement of the main shaft 1 and the push of the bushing 14 achieve the rapid braking of the winding disc by the brake shoe 4.

[0038] In summary, this utility model adopts a braking structure in which two brake shoes cooperate with the inner circumferential surface of the brake, which is not only reliable in structure and low in cost, but also has a self-braking function, realizing rapid braking of the cylinder core.

[0039] 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 a main shaft, characterized in that, Also includes: A cylindrical core, wherein the inner wall of the cylindrical core is provided with a braking inner circumferential surface, and the main shaft is rotatably mounted on the cylindrical core; A braking assembly, which is mounted on the main shaft, includes a pair of brake shoes, both of which are adapted to the inner circumferential surface of the brake. A spreading member for spreading the brake shoes, the spreading member being fitted onto the main shaft; A drive assembly for driving the spindle to move axially.

2. The kite reel braking device according to claim 1, characterized in that, The support member is provided with a support slope.

3. The kite reel braking device according to claim 2, characterized in that, Each of the brake shoes includes a brake shoe bracket and a friction plate, and each of the brake shoe brackets is provided with a spreading guide that is adapted to the spreading inclined surface.

4. The kite reel braking device according to claim 3, characterized in that, The expanding member is an expanding sleeve, and the expanding inclined surface is provided on the outer peripheral surface of the expanding sleeve. The expanding inclined surface is annular. Both expanding guide members are rotating sleeves. The two rotating sleeves are respectively rotatably installed on the corresponding brake shoe brackets. Both rotating sleeves are perpendicular to the main shaft. The expanding inclined surface abuts against the outer peripheral surface of the two rotating sleeves.

5. The kite reel braking device according to claim 4, characterized in that, The braking assembly includes a mounting bracket, both brake shoe brackets are hinged to the mounting bracket, and a pair of first reset elements are provided between the two brake shoe brackets.

6. The kite reel braking device according to claim 5, characterized in that, A second reset element is provided between the mounting bracket and the expansion sleeve, and the second reset element is sleeved on the main shaft.

7. The kite reel braking device according to claim 5, characterized in that, The main shaft is rotatably mounted on the core via a core bearing; a bushing is provided between the mounting bracket and the core bearing, and the spreading sleeve abuts against the kite wheel bracket bearing; or a bushing is provided between the spreading sleeve and the core bearing and between the mounting bracket and the kite wheel bracket bearing, respectively.

8. The kite reel braking device according to claim 1, characterized in that, The drive assembly includes a bracket mounting base rotatably mounted on the main shaft, a push sleeve rotatably mounted on the bracket mounting base, a brake sleeve slidably mounted on the bracket mounting base, the brake sleeve rotatably mounted on the main shaft, and several annularly arranged stroke adjustment grooves are provided on the adjacent end faces of the push sleeve and the brake sleeve, with a ball bearing commonly provided in each pair of opposite stroke adjustment grooves, and a brake handle is clamped onto the push sleeve.

9. The kite reel braking device according to claim 8, characterized in that, The depth and width of each stroke adjustment groove on the push sleeve gradually increase in a clockwise direction, while the depth and width of each stroke adjustment groove on the brake sleeve gradually increase in a counterclockwise direction.

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