一种汽车侧门上走轮臂结构

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By designing an upper drive wheel arm structure for a car side door that includes a wheel arm, upper drive wheel, guide rail, support components, and connectors, the gap problem caused by upper drive wheel wear is solved by using bolts and nuts. This achieves a tight fit between the support wheel and the guide rail, simplifies maintenance, and extends service life.

CN224510832UActive Publication Date: 2026-07-17ZHEJIANG LONGJI AUTO PARTS

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: ZHEJIANG LONGJI AUTO PARTS
Filing Date: 2025-09-10
Publication Date: 2026-07-17

AI Technical Summary

Technical Problem

The existing car side door wheel arm is prone to wear after long-term use, which leads to an increase in the gap between the door and the vehicle body, and makes disassembly and maintenance inconvenient.

Method used

Design a structure including a wheel arm, an upper wheel, a guide rail, a support assembly, and connectors. Through the cooperation of bolts and nuts, the support wheel and the guide rail are fastened together, ensuring that the upper wheel fits snugly against the guide rail and avoiding wear.

Benefits of technology

This effectively avoids wear gaps between the upper track wheel and the guide rail, simplifies the maintenance process, and extends service life.

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Abstract

本实用新型涉及上走轮臂技术领域，尤其是一种汽车侧门上走轮臂结构，包括轮臂、上走轮、导轨、支撑组件和连接件。通过外部扳手转动螺栓，螺栓能够沿着螺母的螺纹槽移动，使得螺栓与螺母分离，随后转动连接板转动九十度，使得连接槽与连接板平行，使得使得连接板能够穿过连接槽，随后扳动连接板，使得连接槽与连接板垂直，然后将螺栓穿过支架的腰型槽与螺母，使得螺栓沿着螺母带动支架对轮臂夹紧，同时将支撑轮与导轨相贴合，通过上走轮与支撑轮对导轨进行支撑，使得上走轮与支撑轮始终对导轨贴合，避免了长时间使用上支撑轮出现磨损上走轮与导轨之间出现间隙，导致车门与车体之间出现间隙，影响使用。

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Claims

1. A structure of a running wheel arm on a side door of an automobile, characterized by: Includes wheel arm, upper travel wheel, guide rail, support assembly and connectors; An upper wheel is rotatably mounted above the wheel arm, and the upper wheel is located inside the guide rail. A support assembly is provided on the lower side of the wheel arm, and connecting parts are provided on both sides of the support assembly. The support assembly includes a bracket, a sliding block, a rotating block, and a connecting plate. A sliding block is provided on one side of the bracket, one end of the sliding block is slidably connected to the rotating block, and the end of the rotating block is fixedly connected to the connecting plate. The connector includes bolts and nuts. The bolts are located on both sides of the bracket, and the threaded portion of the bolts is threadedly connected to the nuts. The ends of the nuts on both sides are fixedly connected to the connecting plate.

2. The wheel arm structure of claim 1, wherein: A connecting groove is provided in the middle of the wheel arm, and waist-shaped grooves are provided on both sides of the wheel arm, with the waist-shaped grooves on both sides being symmetrically mirrored on both sides of the connecting groove.

3. The wheel arm structure of claim 1, wherein: A support wheel is rotatably mounted on the top of the bracket, and the outer wall of the support wheel is in contact with the guide rail.

4. The wheel arm structure of claim 1, wherein: The outer wall of the sliding block is slidably connected to the connecting groove, and the shape and size of the connecting plate are the same as those of the connecting groove. The connecting plate can pass through the connecting groove.

5. The wheel arm structure of claim 1, wherein: The outer wall of the bolt is slidably connected to the waist-shaped groove.