Dual-action braking structure

Abstract

This invention discloses a dual-action brake structure, including a brake disc, a brake band, and a drive assembly. The brake disc connects to the wheel and rotates with it. The brake band is disposed on the outer periphery of the brake disc and has an opening. Brake clamps are located at both ends of the opening, designated as a first clamp and a second clamp. The drive assembly is tractively connected to the first and second clamps and drives both clamps to move, causing them to move towards each other or away from each other. When the first and second clamps move towards each other, the brake band grips the brake disc to restrict wheel rotation. When the first and second clamps move away from each other, the brake band releases from the brake disc. The simultaneous movement of the first and second clamps results in a more even distribution of the clamping force and a reduced contraction stroke of the brake band, allowing it to grip the brake disc in a shorter time, leading to better braking performance and improved safety.

Claims

1. A dual-action braking structure, wherein: It includes a brake disc, a brake band, and a drive assembly; the brake disc is used to connect to the wheel and rotate with the wheel; the brake band is disposed on the outer periphery of the brake disc, and the brake band has an opening, with brake clamps at both ends of the opening, namely the first clamp and the second clamp; the drive assembly is drivenly connected to the first clamp and the second clamp, and is used to drive the first clamp to move and drive the second clamp to move, so that the first clamp and the second clamp move closer to each other or further apart. When the first clamp and the second clamp move closer to each other, the brake band clamps the brake disc to restrict the rotation of the wheel; when the first clamp and the second clamp move further apart, the brake band releases the brake disc.

2. The dual-action braking structure as described in claim 1, wherein: The drive assembly includes a brake cable and a brake cable sleeve. The brake cable sleeve is fitted over the brake cable. One end of the brake cable is connected to a traction member, and the other end of the brake cable extends through the brake cable sleeve and connects to a first clamp. The traction member is used to pull the brake cable to actuate the first clamp, causing it to move towards a second clamp. One end of the brake cable sleeve is fixed near the traction member, and the other end is connected to the second clamp. This sleeve is used to push the second clamp when the brake cable is pulled, causing it to move towards the first clamp. The first and second clamps move closer together under the pull of the brake cable and the push of the brake cable sleeve, causing the brake band to grip the brake disc tightly.

3. The dual-action braking structure as described in claim 2, wherein: The portion of the brake cable located between the traction member and the second clamp is curved; when the brake cable is pulled, the end of the brake cable sleeve away from the traction member moves toward the second clamp.

4. The dual-action braking structure as described in claim 1, wherein: The drive assembly also includes an elastic element, which is used to elastically drive the two brake clamps to move away from each other, so that the two brake clamps are reset.

5. The dual-action braking structure as described in claim 4, wherein: The number of elastic elements is two, with one elastic element installed in each brake clamp, and the two elastic elements respectively drive the corresponding brake clamp to reset.

6. The dual-action braking structure as described in claim 5, wherein: A mounting base is provided between the first clamp and the second clamp. The mounting base has a first mounting groove and a second mounting groove on opposite sides. The first mounting groove faces the first clamp and the second mounting groove faces the second clamp. Two elastic members are a first elastic member and a second elastic member. One end of the first elastic member is inserted into the first mounting groove and the other end is connected to the first clamp. One end of the second elastic member is inserted into the second mounting groove and the other end is connected to the second clamp.

7. The dual-action braking structure as described in claim 1, wherein: The brake band includes a first arc segment and a second arc segment. A first clamp is disposed at one end of the first arc segment, and a second clamp is disposed at one end of the second arc segment. The other ends of the first arc segment and the other ends of the second arc segment are hinged to each other.

8. The dual-action braking structure as described in claim 1, wherein: The inner ring of the brake band is provided with brake pads, which are used to contact the brake disc.

9. The dual-action braking structure as described in claim 2, wherein: The brake cable sleeve is provided with a pusher at the end opposite to the traction member. The pusher is located at the end of the second clamp opposite to the first clamp and is used to push the second clamp.

10. The dual-action braking structure as described in claim 2, wherein: The brake cable is provided with a limiting member at the end away from the traction member. The limiting member is engaged with the first clamp. When the brake cable is pulled, it drives the first clamp to move towards the second clamp.

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