一种多拉线机械平衡阀及两轮车辆
By designing a multi-cable mechanical balance valve, balanced braking of the front and rear wheels of the bicycle is achieved, solving the problem of tail-wagging in cable disc brake systems during emergency braking, ensuring that the braking distance is shortened and the system safety is not affected.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LANXI JIEKE SPORTS APP MFG
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, the low-cost cable disc brake system lacks an effective brake fluid distribution scheme, which leads to instability of the vehicle's center of gravity during emergency braking and may cause the vehicle to fishtail.
Design a multi-wire mechanical balance valve that achieves direct braking of the front and rear wheels through the cooperation of the third and fourth wires, and indirect braking of the front wheels through the traction motion of the sliding tube, ensuring that the braking distance is shortened and that it can still brake independently when the linkage fails.
It achieves balanced braking of the front and rear wheels of the bicycle, reduces the risk of tail-swing, maintains system safety in the event of linkage failure, and ensures a significant reduction in braking distance.
Smart Images

Figure CN224511367U_ABST
Abstract
Claims
1. A multi-rope mechanical balance valve for use with a vehicle having at least two disc brake calipers, characterized in that, The valve includes a balance valve body, and a third pull wire and a fourth pull wire connected to the balance valve body. The balance valve body includes at least: The outer valve body has a sliding tube hole in its axial center; A sliding tube fitting is axially movable in the sliding tube hole, and a sliding tube screw cap is threaded on its second end. The first end of the third pull wire passes through the first end of the sliding tube fitting and is fitted with a first wire buckle that is movably assembled with the inner cavity of the sliding tube fitting. An elastic element is sleeved on a section of the third pull wire located in the inner cavity of the sliding tube fitting. A second wire buckle that is limited and fitted inside the sliding tube screw cap is fixedly installed on the first end of the fourth pull wire. The second end of the third cable is fixed to the first cable, and the first and second ends of the first cable are respectively connected to the first brake lever and the first disc brake caliper; the second end of the fourth cable is fixed to the second cable, and the third and fourth ends of the second cable are respectively connected to the second brake lever and the second disc brake caliper.
2. The multi-rod mechanically balanced valve of claim 1, wherein, The outer valve body has a deep groove in the middle of its annular outer wall, and wire holes extending to the two free ends of the outer valve body are respectively opened on both sides of the deep groove. The first pull wire and the second pull wire pass through the two wire holes to guide the movement area of the first pull wire and the second pull wire.
3. The multi-rod mechanically balanced valve of claim 2, wherein, The balance valve body also includes end caps threaded to both ends of the outer valve body along its axial direction. The first pull wire and the second pull wire respectively pass through the inner cavities of the two end caps and exit through the wire holes.
4. The multi-rodded mechanically balanced valve of claim 3, wherein, Both the first and second pull wires have a pull wire sheath covering the section located outside the balance valve body.
5. The multi-rodded mechanically balanced valve of claim 3, wherein, Both the first pull wire and the second pull wire are fixed with locking blocks on a section of the end cap cavity, and the two locking blocks respectively fix the second end of the third pull wire and the second end of the fourth pull wire.
6. The multi-wire mechanical balance valve as described in claim 2, characterized in that, A sliding tube limiting section is formed on the axial sidewall of the sliding tube near the first line end. A sliding tube screw cap is movably sleeved on the sliding tube limiting section. The sliding tube screw cap is threadedly assembled with the inner wall of the sliding tube hole to limit the movement stroke of the sliding tube.
7. The multi-rod mechanical balance valve of claim 1, wherein, The axial outer wall of the slide tube is a non-circular structure to limit the slide tube to move only axially within the slide tube hole.
8. The multi-rod mechanical balance valve of claim 1, wherein, The first brake lever component includes: First stop, grip the seat; The first handle is rotatably mounted on the first brake lever seat via a first pin, and at least one first torsion spring is sleeved on the first pin. The two ends of the first torsion spring abut against the first brake lever seat and the first handle respectively, and drive the first handle to pull towards the first line end.
9. The multi-rod mechanical balance valve of claim 1, wherein, The second brake lever includes: Second brake lever seat; The lower part of the second handle is rotatably mounted on the second brake lever seat via a second pin, and at least one second torsion spring is sleeved on the second pin. The two ends of the second torsion spring abut against the second brake lever seat and the second handle respectively and drive the second handle to pull away from the third cable end, so as to maintain the tension of the second cable when the third cable end is slack.
10. A two-wheeled vehicle characterized by It includes the multi-wire mechanical balance valve as described in any one of claims 1-9.