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, a driving assembly, two sliding pieces and two brake assemblies. Two inclined grooves are formed in the fixed part, and the two inclined grooves, the two sliding parts and the two brake assemblies are in one-to-one correspondence; one side of the sliding part is slidably mounted in the inclined groove, a limiting groove is formed in the other side of the sliding part, and one end of the brake assembly is slidably mounted in the limiting groove; the driving assembly is used for driving the sliding part to slide along the inclined groove so as to adjust the initial positions of the two brake assemblies during braking, braking can be achieved under the condition that the movement stroke of the brake assemblies during braking is consistent with the movement stroke before abrasion, and therefore the good braking effect can be kept under the condition that the brake assemblies are abraded.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle braking, in particular to a brake adjustment component and a brake device. Background Art

[0002] On a bicycle or electric bicycle, the brake system consists of a brake assembly and a braking component. When braking is required, the brake assembly drives the brake assembly to move, causing the brake assembly and wheel assembly to rub against each other, braking the wheel. Because braking relies on friction from the brake assembly, the brake assembly will wear out over time, resulting in poor braking performance. Utility Model Content

[0003] The purpose of the utility model is to provide a method for solving the existing technical problems.

[0004] In the first aspect, the present application provides a brake adjustment assembly, comprising a fixing member, a driving assembly, two sliding members and two brake assemblies; two inclined grooves are provided on the fixing member, and the two inclined grooves, the two sliding members and the two brake assemblies correspond one to one; one side of the sliding member can be slidably installed in the inclined groove, and a limiting groove is provided on the other side of the sliding member, and one end of the brake assembly can be slidably installed in the limiting groove; the driving assembly is used to drive the sliding member to slide along the inclined groove to adjust the initial position of the two brake assemblies when braking.

[0005] In one embodiment, the brake assembly includes a brake shoe and a connecting member connected to one end of the brake shoe, and one end of the connecting member is slidably installed in the limiting groove.

[0006] In one embodiment, one end of the connecting member is in rolling contact with the bottom surface of the limiting groove, and two side surfaces of the limiting groove are used to limit the connecting member in a first direction when the brake shoe brakes.

[0007] In one embodiment, the drive assembly includes a nut, the fixing member includes a fixing portion and a screw portion connected to each other, the bevel groove is opened on the fixing portion, the nut is threadedly connected to the screw portion, and the sliding member is driven to slide along the bevel groove by axial movement along the screw portion.

[0008] In one embodiment, the driving assembly further includes a motor for driving the nut portion to move along the axial direction of the screw.

[0009] In one embodiment, the brake adjustment assembly further includes a distance sensor electrically connected to the motor, and distance information detected by the distance sensor is used to represent the position of the brake assembly when braking.

[0010] In a second aspect, the present application provides a brake device, comprising a brake assembly and a brake adjustment assembly as described in the first aspect above.

[0011] In one embodiment, the other ends of the two brake assemblies are connected to the brake assembly.

[0012] In one embodiment, the brake assembly includes a rotating part, a rocker arm connected to the rotating part, and an elastic part connected to the other end of the two brake assemblies. The rocker arm is used to drive the rotating part to rotate during braking, so that the two brake assemblies move in the braking direction.

[0013] In one embodiment, the brake device further includes a housing, the brake assembly is installed inside the housing, and the drive assembly is installed outside the housing.

[0014] The brake adjustment assembly and brake device provided by the present invention have the following beneficial effects: the brake adjustment assembly includes a fixed member, a driving assembly, two sliding members, and two brake assemblies; the fixed member is provided with two inclined slots, and the two inclined slots, the two sliding members, and the two brake assemblies correspond one to another; one side of the sliding member is slidably mounted in the inclined slot, and the other side of the sliding member is provided with a limit slot, and one end of the brake assembly is slidably mounted in the limit slot; the driving assembly is used to drive the sliding member to slide along the inclined slot to adjust the initial position of the two brake assemblies during braking. When the brake assembly wears, the driving assembly drives the sliding member to slide along the inclined slot. When the sliding member slides along the inclined slot, the distance between the sliding member and the central axis of the fixed member increases, thereby increasing the distance between the two sliding members, and further increasing the distance between the two brake assemblies slidably mounted in the sliding member, thereby adjusting the initial position of the two brake assemblies during braking to compensate for the wear of the brake assembly. When the brake assembly is braking, the movement stroke is consistent with that before wear, thereby maintaining a good braking effect even when the brake assembly is worn. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0016] Figure 1 A schematic diagram of a brake adjustment assembly provided in an embodiment of the present utility model;

[0017] Figure 2 A diagram illustrating the adjustment principle of the brake adjustment assembly provided in an embodiment of the present utility model;

[0018] Figure 3 A schematic diagram of a fixing member of a brake adjustment assembly provided in an embodiment of the present utility model;

[0019] Figure 4 A schematic diagram of a brake device provided in one embodiment of the present utility model;

[0020] Figure 5 A schematic diagram of a brake device provided by an embodiment of the present invention from another perspective;

[0021] Figure 6 A schematic diagram of a brake device provided in another embodiment of the present invention;

[0022] Figure 7 This is a schematic diagram of a brake device provided by another embodiment of the present invention from another perspective.

[0023] Among them, the reference numerals in the figures are:

[0024] 10. Brake adjustment assembly; 11. Fixing member; 111. Inclined groove; 112. Fixing portion; 113. Screw portion; 12. Driving assembly; 121. Nut; 13. Sliding member; 131. Limiting groove; 14. Brake assembly; 141. Brake shoe; 142. Connecting member; 1421. Connecting column; 1422. Protrusion; 1423. Second curved surface; 20. Braking assembly; 21. Rotating member; 22. Rocker arm; 23. Elastic member; 30. Housing. DETAILED DESCRIPTION

[0025] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0026] Reference throughout this 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 present application. Thus, when the phrases "in one embodiment" or "in some embodiments" appear in various places throughout this specification, not all references are to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0027] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly indicate the quantity of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0029] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0030] Please refer to Figures 1 to 5 Now, the brake adjustment assembly in the embodiment of the present utility model is described.

[0031] The brake adjustment assembly 10 includes a fixed member 11, a drive assembly 12, two sliding members 13, and two brake assemblies 14. The fixed member 11 defines two inclined slots 111. These slots 111 include a bottom surface and two side surfaces located on either side of the bottom surface. The bottom surface of the inclined slots 111 is inclined, and the two side surfaces are parallel. The slots have varying depths at different locations along the bottom surface. The two inclined slots 111 are symmetrical about the central axis of the fixed member 11. Specifically, their bottom surfaces are symmetrical about the central axis of the fixed member 11. The extending direction of the inclined slots 111 is perpendicular to the plane of movement of the brake assembly 14 during braking. The two inclined grooves 111, the two sliding members 13 and the two brake assemblies 14 correspond one to one; one side of the sliding member 13 can be slidably installed in the inclined groove 111, and a limiting groove 131 is provided on the other side of the sliding member 13, and one end of the brake assembly 14 can be slidably installed in the limiting groove 131; the driving assembly 12 is used to drive the sliding member 13 to slide along the inclined groove 111 to adjust the initial position of the two brake assemblies 14 when braking.

[0032] Specifically, when braking is required, the two brake assemblies 14 are driven by an external force to move in the braking direction (e.g., expand outward), thereby contacting the wheels and generating friction, thereby braking the wheels. After a period of use, the parts of the brake assemblies 14 that contact the wheels will wear, increasing the gap between the brake assemblies 14 and the wheels. If the movement range of the brake assemblies 14 during braking remains unchanged, the brake assemblies 14 and the wheels will not be properly aligned for braking, affecting the braking effect.

[0033] In the embodiment of the present application, the drive assembly 12 moves under the action of an external force, thereby driving the slider 13 to slide along the inclined groove 111. The bottom surface of the slider 13 in contact with the inclined groove 111 is flat. As the slider 13 slides, the distance between the slider 13 and the central axis of the fixed member 11 increases, thereby increasing the distance between the two sliders 13. The slider 13 slides relative to the fixed member 11 and the brake assembly 14. Therefore, as the distance between the two sliders 13 increases, the distance between the two brake assemblies 14 and the central axis of the fixed member 11 increases. In other words, the distance between the two brake assemblies 14 increases, and both brake assemblies 14 move in the braking direction (e.g., expand outward). This changes the initial position of the brake assemblies 14 during braking, bringing them closer to the wheel. When braking is required again, the brake assembly 14 maintains the same travel distance as when it was not worn to engage the wheel, achieving braking. Therefore, even in the event of wear, the braking effect of the brake assembly 14 is maintained, extending the service life of the brake assembly 14.

[0034] In one embodiment, the brake assembly 14 includes a brake shoe 141 and a connecting member 142 connected to one end of the brake shoe 141. One end of the connecting member 142 is slidably mounted within the limiting groove 131. When the sliding member 13 slides along the inclined groove 111, the connecting member 142 and the fixing member 11 are fixed in the direction extending along the inclined groove 111. The distance between the two connecting members 142 in a direction perpendicular to the extension of the inclined groove 111 increases, thereby increasing the distance between the two brake shoes 141, allowing the two brake shoes 141 to move closer to the wheel in the braking direction. By connecting the brake shoe 141 and the connecting member 142, with one end of the connecting member 142 slidably mounted within the limiting groove 131, the difficulty of processing and installing the brake shoe 141 can be reduced.

[0035] In one embodiment, one end of the connecting member 142 is in rolling contact with the bottom surface of the limiting groove 131. The two side surfaces of the limiting groove 131 are used to limit the connecting member 142 in a first direction when the brake shoe 141 is braking. The first direction is perpendicular to the two side surfaces of the limiting groove 131 and is also perpendicular to the sliding direction of the sliding member 13. Exemplarily, the connecting member 142 includes a connecting post 1421 and a protrusion 1422 protruding from one end of the connecting post 1421. The other end of the connecting post 1421 is connected to the brake shoe 141. The protrusion 1422 has an arc-shaped second curved surface 1423. The bottom surface of the limiting groove 131 is also curved, and the second curved surface 1423 is in rolling contact with the bottom surface of the limiting groove 131. When the brake shoe 141 is braking, the connecting member 142 cannot swing significantly in the first direction and can only rotate within the limiting groove 131. Therefore, after adjusting the initial position of the brake assembly 14 during braking, the initial position of the brake assembly 14 will not be changed when braking again, thereby improving the stability during braking.

[0036] In one embodiment, the drive assembly 12 includes a nut 121, and the fixing member 11 includes a fixing portion 112 and a screw portion 113 that are connected to each other. Specifically, an inclined groove 111 is provided on the fixing portion 112, and the screw portion 113 is connected to the end of the inclined groove 111 of the fixing portion 112. The nut 121 is threadedly connected to the screw portion 113, and the sliding member 13 is driven to slide along the inclined groove 111 by axial movement along the screw portion 113. Specifically, one end of the sliding member 13 contacts the nut 121, and rotating the nut 121 causes the nut 121 to move axially along the screw portion 113, thereby pushing the sliding member 13 to slide along the inclined groove 111. Since the nut 121 can be fixed on the screw portion 113 after rotation, the movement of the sliding member 13 can be limited, thereby improving the stability of the brake assembly 14.

[0037] In one embodiment, the drive assembly 12 further includes a motor for driving the nut 121 to move axially along the screw portion 113, so that when the brake assembly 14 needs to be adjusted, the nut 121 can be driven by the motor to rotate without manual adjustment by the user, which is convenient for users.

[0038] In one embodiment, the brake adjustment assembly 10 further includes a distance sensor electrically connected to the motor, and the distance information detected by the distance sensor is used to characterize the position of the brake assembly 14 when braking. For example, the distance sensor is provided in correspondence with the rocker arm connected to the brake assembly 14 to detect the distance from the rocker arm. When the brake assembly 14 is worn, the spacing between the brake assembly 14 and the wheel increases. When an external force drives the brake assembly 14, in order to fit the wheel, the brake assembly 14 requires a larger movement stroke, resulting in a change in the position of the brake assembly 14 relative to when it is not worn. When the distance between the distance sensor and the rocker arm is less than a preset distance, it is determined that the position of the brake assembly 14 has changed and the brake assembly 14 is worn. Alternatively, the distance sensor is provided in correspondence with the brake assembly 14 to detect the distance between the distance sensor and the brake assembly 14. When the distance between the distance sensor and the brake assembly 14 is greater than a preset distance, it is determined that the brake assembly 14 is worn. The distance sensor sends the detected distance information to the controller. When the controller determines that the brake assembly 14 is worn based on the distance information, it controls the motor 122 to rotate, and then drives the nut 121 to rotate, thereby realizing adaptive adjustment of the brake assembly 14 without manual maintenance. Using the brake adjustment assembly 10 in shared bicycles or shared electric vehicles can greatly reduce maintenance costs.

[0039] Please refer to Figures 5 to 7 Another embodiment of the present application provides a brake device, comprising a brake assembly 20 and the aforementioned brake adjustment assembly 10. The brake assembly 20 is used to drive the brake assemblies 14 to expand outward. For example, when a user grips the brakes on a bicycle and pulls the brake cable, the brake cable drives the brake assembly 20 to rotate, causing the two brake assemblies 14 to expand outward and engage the wheel, thereby achieving braking.

[0040] In one embodiment, the other ends of the two brake assemblies 14 are connected to the brake assembly 20, that is, the fixing member 11 and the brake assembly 20 are respectively arranged at the two ends of the brake assembly 14, thereby reducing the movement stroke of the brake assembly 20 during braking and improving the braking effect.

[0041] In one embodiment, the brake assembly 20 includes a rotating member 21, a rocker arm 22 connected to the rotating member 21, and an elastic member 23 connected to the other end of the two brake assemblies 14. The rocker arm 22 is used to drive the rotating member 21 to rotate during braking, causing the two brake assemblies 14 to move in the braking direction. For example, when the brake cable is pulled, the brake cable drives the rocker arm 22 to rotate, causing the rocker arm 22 to rotate the rotating member 21, causing the rotating member 21 to contact the two brake assemblies 14 and increase the distance between the two brake assemblies 14. In other words, the two brake assemblies 14 move in the braking direction and contact the wheels, thereby achieving braking. At this time, the elastic member 23 is in a stretched state. When the brake cable is released, the elastic member 23 resets, driving the two brake assemblies 14 to reset, causing the brake assemblies 14 to separate from the wheels.

[0042] In one embodiment, the brake device further includes a housing 30, within which the brake assembly 14 and the fixing member 11 are mounted, thereby ensuring better braking effect and adjustment accuracy. The rocker arm 22 and the drive assembly 12 are mounted outside the housing 30 for easier maintenance.

[0043] The above-mentioned brake device, by providing an inclined groove 111 on the fixing part 11, adjusts the position of the sliding part 13 in the inclined groove 111 when the brake component 14 is worn to adjust the initial position of the brake component 14 during braking. Even if the brake component 14 is worn, the braking effect will not be affected, thereby extending the service life of the brake component 14.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A brake adjustment assembly, characterized in that: It includes a fixing part, a driving assembly, two sliding parts and two brake assemblies; two inclined grooves are provided on the fixing part, and the two inclined grooves, the two sliding parts and the two brake assemblies correspond to each other one by one; one side of the sliding part can be slidably installed in the inclined groove, and a limiting groove is provided on the other side of the sliding part, and one end of the brake assembly can be slidably installed in the limiting groove; the driving assembly is used to drive the sliding part to slide along the inclined groove to adjust the initial position of the two brake assemblies when braking.

2. The brake adjustment assembly according to claim 1, characterized in that: The brake assembly includes a brake shoe and a connecting piece connected to one end of the brake shoe, and one end of the connecting piece is slidably installed in the limiting groove.

3. The brake adjustment assembly according to claim 2, characterized in that: One end of the connecting member is in rolling contact with the bottom surface of the limiting groove, and the two side surfaces of the limiting groove are used to limit the connecting member in a first direction when the brake shoe brakes.

4. The brake adjustment assembly according to claim 1, wherein: The driving assembly includes a nut, and the fixing member includes a fixing portion and a screw portion connected to each other. The bevel groove is provided on the fixing portion, and the nut is threadedly connected to the screw portion, and drives the sliding member to slide along the bevel groove by moving axially along the screw portion.

5. The brake adjustment assembly according to claim 4, characterized in that: The driving assembly further includes a motor for driving the nut portion to move along the axial direction of the screw.

6. The brake adjustment assembly according to claim 5, characterized in that: The brake adjustment assembly further includes a distance sensor electrically connected to the motor, and distance information detected by the distance sensor is used to represent the position of the brake assembly when braking.

7. A braking device, characterized in that: The invention comprises a brake assembly and a brake adjustment assembly according to any one of claims 1 to 6.

8. The brake device according to claim 7, characterized in that: The other ends of the two brake assemblies are connected to the brake assembly.

9. The brake device according to claim 8, characterized in that: The brake assembly includes a rotating part, a rocker arm connected to the rotating part, and an elastic part connected to the other end of the two brake assemblies. The rocker arm is used to drive the rotating part to rotate during braking, so that the two brake assemblies move in the braking direction.

10. The brake device according to claim 7, characterized in that: The brake device further includes a housing, the brake assembly is installed inside the housing, and the drive assembly is installed outside the housing.

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