Brake adjusting assembly and brake device

Abstract

The utility model provides a brake adjusting assembly and a brake device, the brake adjusting assembly comprises a fixing piece, an adjusting piece and two brake assemblies, the fixing piece is provided with a limiting groove, and one ends of the two brake assemblies respectively extend into the two ends of the limiting groove in a position-adjustable mode; the two side faces of the limiting groove are used for limiting the brake assembly in the first direction when the brake assembly brakes. The adjusting part is rotatably installed in the limiting groove and provided with a first curved surface with the variable diameter, the brake assemblies are used for making contact with different positions of the first curved surface when the adjusting part rotates so as to adjust the initial positions of the two brake assemblies in the braking process, and therefore the positions of the brake assemblies can be adjusted after the brake assemblies are abraded; and the braking effect is not influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle brake technology field especially, relate to a brake adjusting assembly and brake device. BACKGROUND

[0002] In the bicycle or electric bicycle, brake through brake device. Brake device generally includes brake assembly and brake assembly, when needing to brake, brake assembly drives brake assembly to move, makes brake assembly and wheel assembly interadhesive friction, thereby generates brake force, makes wheel assembly stop rotation or deceleration rotation. Brake assembly will produce certain wear after brake device uses for a period of time, leads to brake assembly's brake effect when braking is poor. SUMMARY

[0003] The utility model discloses a brake adjusting assembly and brake device, aim at solving the problem of poor brake effect after brake assembly wear in prior art.

[0004] Firstly, the present application provides a kind of brake adjusting assembly, including fixed part, adjusting part and two brake assemblies, the fixed part has limit slot, and one end of two brake assemblies is respectively position adjustablely inserted into the two ends of limit slot;The two sides of the limit slot are used to limit the brake assembly in the first direction when the brake assembly brakes;The adjusting part is rotatably installed in the limit slot, and the adjusting part has the first curved surface of variable diameter, and the brake assembly is used to contact with the different positions of the first curved surface when the adjusting part rotates, to adjust the initial position when two brake assemblies brake.

[0005] In an embodiment, the brake adjusting assembly further includes a cover plate mounted on the fixed part, and the cover plate and the bottom surface of the limit slot are used to limit the brake assembly in the second direction.

[0006] In an embodiment, the brake assembly includes brake shoe and connecting piece connected with one end of the brake shoe, one end of the connecting piece is position adjustablely inserted into the limit slot, and the connecting piece is used to contact with the different positions of the first curved surface when the adjusting part rotates, to adjust the distance between two connecting pieces, and further adjust the initial position when two brake shoes brake.

[0007] In an embodiment, the connecting piece includes connecting column and protrusion provided on one end of the connecting column, the other end of the connecting column is connected with the brake shoe, and the protrusion has the second curved surface of circular arc shape, and the second curved surface is in rolling contact with the first curved surface.

[0008] In an embodiment, the brake adjusting assembly further comprises a driving assembly for driving the adjusting member to rotate, and the driving assembly comprises a motor.

[0009] In an embodiment, the driving assembly further comprises a driving member and a screw rod, one end of the driving member is connected with the adjusting member, the other end of the driving member is engaged with one end of the screw rod, and the other end of the screw rod is connected with the output end of the motor.

[0010] In an embodiment, the brake adjusting assembly further comprises a distance sensor electrically connected with the motor, and the distance information detected by the distance sensor is used to represent the position of the brake assembly when braking.

[0011] In an embodiment, the brake adjusting assembly further comprises a distance sensor electrically connected with the motor, and the distance information detected by the distance sensor is used to represent the position of the brake assembly when braking.

[0012] In an embodiment, the other ends of the two brake assemblies are connected with the brake assembly.

[0013] In an embodiment, the brake assembly comprises a rotating member, a rocker arm connected with the rotating member, and an elastic member connected with the other ends of the two brake assemblies, and the rocker arm is used to drive the rotating member to rotate when braking, so that the two brake assemblies move to the braking direction.

[0014] The brake adjusting assembly and the brake device have the following beneficial effects: the brake adjusting assembly comprises a fixing member, an adjusting member, and two brake assemblies, the fixing member has a limiting groove, and one end of each of the two brake assemblies is positionally adjustable and extends into two ends of the limiting groove; the adjusting member is rotatably installed in the limiting groove, and the adjusting member has a first curved surface with a variable diameter. After the brake assemblies are worn, the movement stroke of the brake assemblies increases, and the brake clearance between the brake assemblies and the wheels increases. The adjusting member is rotated, and the brake assemblies contact different positions of the first curved surface when the adjusting member rotates, so as to adjust the initial positions of the two brake assemblies when braking. Since the initial positions of the two brake assemblies when braking change, the movement stroke of the brake assemblies when braking remains unchanged, and the brake clearance is not affected, so that the wear of the brake assemblies can be compensated, and the braking effect is not affected after the brake assemblies are worn. Meanwhile, since the brake assemblies contact the first curved surface, and the two sides of the limiting groove are used to limit the brake assemblies in the first direction when the brake assemblies brake, after the initial positions of the brake assemblies when braking change, the two brake assemblies do not move in the first direction and the direction of the limiting groove when the brake assemblies brake, so that the initial positions of the brake assemblies do not change when braking, the stability of the brake assemblies after the positions are adjusted is improved, the braking effect is further ensured, and the safety hazard is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced.

[0016] Figure 1 A schematic view of a brake adjusting assembly provided by an embodiment of the present application is shown in the figure.

[0017] Figure 2 A schematic view of a fixing member of the brake adjusting assembly shown in the figure is shown in the figure. Figure 1

[0018] Figure 3 A schematic view of an adjusting member of the brake adjusting assembly shown in the figure is shown in the figure. Figure 1

[0019] Figure 4 A schematic view of an adjusting assembly is shown in the figure. Figure 3

[0020] Figure 5 A schematic view of a brake adjusting assembly provided by another embodiment of the present application is shown in the figure.

[0021] Figure 6 A schematic view of a brake adjusting assembly provided by another embodiment of the present application is shown in the figure.

[0022] Figure 7 A schematic view of a brake device provided by an embodiment of the present application is shown in the figure.

[0023] Figure 8 A schematic view of a brake device provided by an embodiment of the present application is shown in the figure.

[0024] In the figures, various reference signs are used:

[0025] 10, brake adjusting assembly; 11, fixing member; 111, limiting groove; 112, mounting hole; 12, adjusting member; 121, first curved surface; 122, adjusting part; 123, mounting part; 13, brake assembly; 131, brake shoe block; 132, connecting member; 1321, connecting column; 1322, protrusion; 1323, second curved surface; 133, brake ring; 14, cover plate; 15, driving assembly; 151, motor; 152, driving member; 153, screw rod; 16, distance sensor; 20, brake assembly; 21, rotating member; 22, rocker arm; 23, elastic member; 30, shell. DETAILED DESCRIPTION

[0026] ​​​Embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application.

[0027] Reference throughout the specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. Therefore, the appearance of the phrases "in one embodiment" or "in some embodiments" in various places throughout the specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0028] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0029] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features.

[0030] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] Please refer to Figures 1 to 6 The brake adjusting assembly in the embodiments of the present application will be described.

[0032] The brake adjusting assembly 10 provided by the embodiment of the utility model includes a fixing piece 11, an adjusting piece 12 and two brake assemblies 13. The fixing piece 11 is provided with a limiting groove 111, and one end of the two brake assemblies 13 is respectively position-adjustably inserted into two ends of the limiting groove 111. Two sides of the limiting groove 111 are used for limiting the brake assemblies 13 in the first direction when the brake assemblies 13 brake. The first direction is perpendicular to the two sides of the limiting groove 111, and is also the width direction of the limiting groove 111. The adjusting piece 12 is rotatably installed in the limiting groove 111, and the adjusting piece 12 is provided with a first curved surface 121 with variable diameter, and the brake assemblies 13 are used for contacting different positions of the first curved surface 121 when the adjusting piece 12 rotates, so as to adjust the initial positions of the two brake assemblies 13 when braking.

[0033] Specifically, when braking is needed, the two brake assemblies 13 are driven by external force to move in the braking direction (for example, expand outward), so as to contact the wheels to generate friction force, thereby braking the wheels. After the brake assemblies 13 are used for a period of time, the parts of the brake assemblies 13 contacting the wheels are abraded, so that the gap between the brake assemblies 13 and the wheels is increased. If the movement stroke of the brake assemblies 13 when braking remains unchanged, the brake assemblies 13 cannot be well attached to the wheels to brake, thereby affecting the braking effect.

[0034] In the embodiment of the application, since the adjusting piece 12 is provided with the first curved surface 121 with variable diameter, when the adjusting piece 12 is rotated, the two brake assemblies 13 contact different positions of the first curved surface 121. The distance between the two brake assemblies 13 is equal to the diameter of the contact position of the first curved surface 121. When the adjusting piece 12 is rotated to make the two brake assemblies 13 contact the position with larger diameter of the first curved surface 121, the distance between the two brake assemblies 13 is increased, so that the positions of the two brake assemblies 13 are changed, that is, the brake assemblies 13 are close to the braking direction or the braking direction, so that the gap between the brake assemblies 13 and the wheels is reduced. When braking again, the initial positions of the brake assemblies 13 are changed, the brake assemblies 13 are driven by external force, and the brake assemblies 13 move in the braking direction to brake. In the case that the movement stroke of the brake assemblies 13 remains unchanged, the brake assemblies 13 can be attached to the wheels to generate friction force, thereby achieving braking. Therefore, in the case that the brake assemblies 13 are abraded, the braking effect will not be affected, and the service life of the brake assemblies 13 is prolonged.

[0035] At the same time, since the two brake assemblies 13 are in contact with the first curved surface 121, the two sides of the limiting groove 111 are used to limit the brake assembly 13 in the first direction when the brake assembly 13 brakes. Therefore, when the brake assembly 13 brakes, the brake assembly 13 cannot move in the first direction and the tangent direction perpendicular to the first curved surface 121, but can only roll on the first curved surface 121. Therefore, when the brake assembly 13 brakes, the initial position of the brake assembly 13 does not change. Therefore, after the brake assembly 13 wears, the stability of the brake assembly 13 after adjusting the initial position is not affected, further ensuring the braking effect of the brake assembly 13.

[0036] The cross section of the adjusting piece 12 is irregular, thereby forming the first curved surface 121 with variable diameter. For example, the cross section of the adjusting piece 12 is spliced by two identical semicircles, and the diameters of the two semicircles do not coincide, thereby forming the first curved surface 121. The two sides of the limiting groove 111 limiting the brake assembly 13 means that one end of the brake assembly 13 cannot move greatly in the first direction in the limiting groove 111. A certain gap can be left between one end of the brake assembly 13 and the side of the limiting groove 111, so that one end of the brake assembly 13 can rotate in the limiting groove 111.

[0037] In an embodiment, the brake adjusting assembly 10 further comprises a cover plate 14 mounted on the fixed piece 11, and the cover plate 14 and the bottom surface of the limiting groove 111 are used to limit the brake assembly 13 in the second direction. The second direction is perpendicular to the first direction, and the second direction is perpendicular to the tangent plane of the bottom surface of the limiting groove 111. By limiting the brake assembly 13 in the second direction, the stability of the brake assembly 13 when braking is further improved, and the braking effect is further improved.

[0038] In an embodiment, the brake assembly 13 comprises a brake shoe 131 and a connecting piece 132 connected to one end of the brake shoe 131, and one end of the connecting piece 132 is adjustably inserted into the limiting groove 111. The connecting piece 132 is used to contact different positions of the first curved surface 121 when the adjusting piece 12 rotates, so as to adjust the distance between the two connecting pieces 132, and further adjust the initial position of the two brake shoes 131 when braking. By connecting the brake shoe 131 and the connecting piece 132, and inserting one end of the connecting piece 132 into the limiting groove 111, the machining and installation difficulty of the brake shoe 131 can be reduced.

[0039] In another embodiment, the brake shoe 131 and the connecting piece 132 can be integrally formed, and one end of the connecting piece 132 is inserted into the limiting groove 111.

[0040] In an embodiment, the brake assembly 13 further comprises a brake disc 133 located outside the brake shoe 131, the brake disc 133 is used to be installed on the wheel, and the brake shoe 131 expands outward to be attached to the brake disc 133 and to realize the friction braking.

[0041] In an embodiment, the connecting piece 132 comprises a connecting column 1321 and a protrusion 1322 protruding from one end of the connecting column 1321, the other end of the connecting column 1321 is connected with the brake shoe 131, and the protrusion 1322 has a second curved surface 1323 in the shape of a circular arc, the second curved surface 1323 is in rolling contact with the first curved surface 121, so that the connecting piece 132 can be more stably rotated around the adjusting piece 12 when the brake shoe 131 brakes.

[0042] In an embodiment, the adjusting piece 12 comprises an adjusting part 122 and a mounting part 123 connected with the adjusting part 122, the cross section of the adjusting part 122 is spliced by two semicircular shapes, so that the adjusting part 122 has the first curved surface 121, and the cross section of the mounting part 123 is smaller than that of the adjusting part 122. The bottom of the limiting groove 111 is provided with a mounting hole 112, and the mounting part 123 is arranged in the mounting hole 112, so that the adjusting part 122 is rotatably mounted in the limiting groove 111.

[0043] In an embodiment, the brake adjusting assembly 10 further comprises a driving assembly 15 for driving the adjusting piece 12 to rotate, the driving assembly 15 comprises a motor 151, when the brake assembly 13 wears, the distance between the two brake assemblies 13 can be adjusted by driving the adjusting piece 12 to rotate by the motor 151 without manual adjustment, so as to facilitate the user to use.

[0044] In an embodiment, the driving assembly 15 further comprises a driving piece 152 and a screw rod 153, one end of the driving piece 152 is connected with the adjusting piece 12. For example, the adjusting piece 12 is connected with the driving piece 152 through the bottom of the limiting groove 111. The other end of the driving piece 152 is engaged with one end of the screw rod 153, and the other end of the screw rod 153 is connected with the output end of the motor 151. When it is needed to rotate the adjusting piece 12, the motor 151 drives the screw rod 153 to rotate, the screw rod 153 drives the driving piece 152 to rotate, and the driving piece 152 drives the adjusting piece 12 to rotate. When the adjusting piece 12 rotates to a specified position, the motor 151 stops outputting, the screw rod 153 stops rotating, and the driving piece 152 is fixed, so as to improve the stability of the adjusting piece 12 after adjustment.

[0045] In an embodiment, the brake adjusting assembly 10 further comprises a distance sensor 16 electrically connected with the motor 151, the distance information detected by the distance sensor 16 is used to represent the position of the brake assembly 13 when braking. Exemplarily, the distance sensor 16 is arranged corresponding to the rocker arm connected with the brake assembly 13 to detect the distance from the rocker arm. When the brake assembly 13 is worn, the distance between the brake assembly 13 and the wheel increases, and when the brake assembly 13 is driven by external force, in order to fit the wheel, the brake assembly 13 needs a larger movement stroke, which causes the position of the brake assembly 13 to change relative to the position when it is not worn. When the distance between the distance sensor 16 and the rocker arm is less than a preset distance, it is determined that the position of the brake assembly 13 changes, and the brake assembly 13 is worn. Alternatively, the distance sensor 16 is arranged corresponding to the brake assembly 13 to detect the distance from the brake assembly 13, and when the distance between the distance sensor 16 and the brake assembly 13 is greater than a preset distance, it is determined that the brake assembly 13 is worn. The distance sensor 16 sends the detected distance information to the controller, and the controller controls the motor 151 to rotate to drive the adjusting member 12 to rotate when it is determined that the brake assembly 13 is worn according to the distance information, so that the self-adaptive adjustment of the brake assembly 13 can be realized, and manual maintenance is not needed. When the brake adjusting assembly 10 is used in a shared bicycle or a shared electric bicycle, the maintenance cost can be greatly reduced.

[0046] Please refer to Figures 6 to 8 Another embodiment of the present application provides a brake device, which comprises a brake assembly 20 and the above-mentioned brake adjusting assembly 10. The brake assembly 20 is used to drive the brake assembly 13 to expand outward, for example, a user holds the brake on the bicycle, pulls the brake line, the brake line drives the brake assembly 20 to rotate, and the two brake assemblies 13 respectively expand outward to fit the wheels to realize braking.

[0047] In an embodiment, the other end of the two brake assemblies 13 is connected with the brake assembly 20, that is, the adjusting member 12 and the brake assembly 20 are respectively arranged at the two ends of the brake assembly 13, so that the movement stroke of the brake assembly 20 during braking can be reduced, and the braking effect can be improved.

[0048] In an embodiment, the brake assembly 20 comprises a rotating member 21, a rocker arm 22 connected to the rotating member 21, and an elastic member 23 connected to the other ends of the two brake assemblies 13, the rocker arm 22 is used to drive the rotating member 21 to rotate when braking, so that the two brake assemblies 13 move to the braking direction. For example, when the brake line is pulled, the brake line drives the rocker arm 22 to rotate, so that the rocker arm 22 drives the rotating member 21 to rotate, so that the rotating member 21 abuts against the two brake assemblies 13 and makes the distance between the two brake assemblies 13 larger, that is, makes the two brake assemblies 13 move to the braking direction and fit the wheels, so as to achieve braking, at this time the elastic member 23 is in a stretched state. When the brake line is released, the elastic member 23 resets to drive the two brake assemblies 13 to reset, so that the brake assemblies 13 are separated from the wheels.

[0049] In an embodiment, the brake device further comprises a housing 30, the brake assembly 13 and the fixing member 11 are both installed in the housing 30, so as to better guarantee the braking effect and the adjustment accuracy. The rocker arm 22 and the driving assembly 15 are both installed outside the housing 30, so as to facilitate the maintenance.

[0050] The above brake device, by setting the adjusting member 12 and the limiting groove 111, the initial position of the brake assembly 13 when braking can be adjusted by rotating the adjusting member 12 when the brake assembly 13 is worn, the braking effect will not be affected in the case of wear of the brake assembly 13, the service life of the brake assembly 13 is prolonged, and the stability of the brake assembly 13 after adjusting the initial position will not be affected.

[0051] The above only describes the preferred embodiments of the present application and is not used to limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A brake adjustment assembly, characterized by, The brake adjusting assembly comprises a fixing member, an adjusting member and two brake components, the fixing member has a limiting slot, one end of each of the two brake components is position-adjustably inserted into two ends of the limiting slot, two sides of the limiting slot are used for limiting the brake components in a first direction when the brake components brake, the adjusting member is rotatably installed in the limiting slot, and the adjusting member has a first curved surface with variable diameter, the brake components are used for contacting different positions of the first curved surface when the adjusting member rotates, so as to adjust initial positions of the two brake components when the brake components brake.

2. The brake adjustment assembly of claim 1, wherein, The brake adjusting assembly further comprises a cover plate installed on the fixing member, and the cover plate and a bottom surface of the limiting slot are used for limiting the brake components in a second direction.

3. The brake adjustment assembly of claim 1, wherein, The brake component comprises a brake shoe and a connecting member connected with one end of the brake shoe, one end of the connecting member is position-adjustably inserted into the limiting slot, and the connecting member is used for contacting different positions of the first curved surface when the adjusting member rotates, so as to adjust a distance between the two connecting members, and further adjust initial positions of the two brake shoes when the brake shoes brake.

4. The brake adjustment assembly of claim 3, wherein, The connecting member comprises a connecting column and a protrusion protruding from one end of the connecting column, the other end of the connecting column is connected with the brake shoe, and the protrusion has a second curved surface in the shape of a circular arc, and the second curved surface is in rolling contact with the first curved surface.

5. The brake adjustment assembly of claim 1, wherein, The brake adjusting assembly further comprises a driving assembly for driving the adjusting member to rotate, and the driving assembly comprises a motor.

6. The brake adjustment assembly of claim 5, wherein, The driving assembly further comprises a driving member and a screw rod, one end of the driving member is connected with the adjusting member, the other end of the driving member is engaged with one end of the screw rod, and the other end of the screw rod is connected with an output end of the motor.

7. The brake adjustment assembly of claim 5, wherein, The brake adjusting assembly further comprises a distance sensor electrically connected with the motor, and distance information detected by the distance sensor is used for representing positions of the brake components when the brake components brake.

8. A brake device characterized by comprising: The brake adjusting assembly comprises a brake component and any one of the brake adjusting assemblies according to claims 1 to 7.

9. The brake device of claim 8, wherein The other ends of the two brake components are connected with the brake component.

10. The brake device according to claim 9, wherein The brake component comprises a rotating member, a rocker arm connected with the rotating member and an elastic member connected with the other ends of the two brake components, and the rocker arm is used for driving the rotating member to rotate when braking, so that the two brake components move in a braking direction.

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