Quick dismounting tool for truck 17th drawbar wear plate

CN224688904UActive Publication Date: 2026-08-28CHINA RAILWAY NANCHANG BUREAU GRP CO LTD SCI & TECH RES INST
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Patent Information

Application Number
CN202522276831.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-28
Publication Date
2026-08-28
Estimated Expiration
2035-10-28

AI Technical Summary

Technical Problem

现场检修人员缺乏专用的拆卸工具,通常只能临时使用锤子、起子(螺丝刀)、棍棒等通用工具,尝试撬动磨耗板使其变形脱出

Benefits of technology

本实用新型通过可调式双撬头设计实现了对17号车钩磨耗板两个卡装点的同步均衡卸载,其枢转连接机构使得工具在狭窄空间内能快速对准并适应不同作业角度,配合防滑脱卡座与省力杠杆,有效克服了传统工具拆卸困难、效率低下及安全风险高等弊端,从而显著提升了检修作业的效率与安全性。

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Abstract

The utility model discloses a kind of truck 17 number car hook abrasion plate quick dismounting tools, comprising: clamping seat, crowbar assembly and the pivotal connection mechanism of connecting the clamping seat with the crowbar assembly;The crowbar assembly includes crowbar main body and at least two pry heads arranged at its operating end, the arrangement of the at least two pry heads corresponds with two clamping points on abrasion plate;The pivotal connection mechanism allows the crowbar assembly to pivot in a predetermined plane relative to the clamping seat movement.The utility model realizes the synchronous balanced unloading of two clamping points of 17 number car hook abrasion plate by adjustable double-pry-head design, its pivotal connection mechanism makes that tool can be quickly aligned and adapt to different operating angles in narrow space, cooperate with anti-slip disengaging clamping seat and labor-saving lever, effectively overcome the drawbacks of traditional tool dismounting difficulty, inefficiency and high security risk, to significantly improve the efficiency and safety of overhaul operation.
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Claims

1. A quick-release tool for the wear plate of a No. 17 coupler on a freight truck, characterized in that, include: The device includes a mounting base (1), a crowbar assembly (2), and a pivoting connection mechanism (3) connecting the mounting base (1) and the crowbar assembly (2); the crowbar assembly (2) includes a crowbar body (21) and at least two pry bars (22) disposed at its working end, the arrangement of the at least two pry bars (22) corresponding to two mounting points on the wear plate; the pivoting connection mechanism (3) allows the crowbar assembly (2) to pivot relative to the mounting base (1) in a predetermined plane.

2. The quick-release tool for the wear plate of truck coupler No. 17 according to claim 1, characterized in that, The pivoting connection mechanism (3) includes a connecting part (31) disposed on the card holder (1) and a slide groove (32) disposed on the crowbar body (21). A rotating pin (33) passes through the connecting part (31) and can slide and lock in the slide groove (32), thereby realizing the adjustment and fixing of the pivoting angle and radial position of the crowbar assembly (2) relative to the card holder (1).

3. A quick-release tool for the wear plate of a No. 17 coupler on a freight car according to claim 2, characterized in that, The rotating pin (33) is provided with a locking component (34) for locking and fixing the relative position of the rotating pin (33) and the slide groove (32) after the position is adjusted.

4. The quick-release tool for the wear plate of truck coupler No. 17 according to claim 1, characterized in that, The card holder (1) includes a hook portion (11) for attaching to the spring seat baffle. The inner shape of the hook portion (11) matches the corresponding part of the spring seat baffle, and the hook portion (11) is provided with an anti-slip structure (12).

5. A quick-release tool for the wear plate of a No. 17 coupler on a freight car according to claim 4, characterized in that, The anti-slip structure (12) is a retractable positioning bead or friction pad.

6. A quick-release tool for the wear plate of a No. 17 coupler on a freight car according to claim 1, characterized in that, It also includes a force-applying lever (4), which is detachably or hingedly connected to the force-applying end of the crowbar body (21) to increase the operating torque.

7. A quick-release tool for the wear plate of a No. 17 coupler on a freight car according to claim 3, characterized in that, A scale mark (35) is provided next to the slide (32) to indicate the radial extension position of the crowbar assembly (2).

8. A quick-release tool for the wear plate of a No. 17 coupler on a freight car according to claim 1, characterized in that, The crowbar assembly (2) has a crowbar body (21) that is an adjustable telescopic rod structure.