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发明公开
CN103144507A 泵车双球面拖挂扣 无效 - 撤回

泵车双球面拖挂扣
摘要：
本发明公开了一种泵车双球面拖挂扣。该泵车双球面拖挂扣包括相互铰接的带有球头(11)的两个公扣(1)和两个分别与其配合的设置有球凹面(21)的母扣(2)。采用该技术方案的泵车双球面拖挂扣，两端为球头凹球面配合分别连接在泵车车架、托泵，实现水平、垂直方向自由回传和360度自由扭转，两公扣之间铰接实现缓冲作用，结构更加合理，减小了磨损提高了泵车双球面拖挂扣的使用寿命。
摘要（英）：

The invention discloses a double-spherical-surface trailer coupler of a pump truck. The double-spherical-surface trailer coupler of the pump truck comprises two male couplers (1) and two female couplers (2), wherein the two male couplers (1) are mutually hinged and are respectively provided with a ball head (11), and the two female couplers (2) are respectively matched with the two male couplers (1) and are respectively provided with a concave spherical surface (21). By adopting the technical scheme, the double-spherical-surface trailer coupler of the pump truck has the advantages that since the two ends are matched through the ball heads and concave spherical surfaces and are respectively connected with a pump truck frame and a trailer pump, the effects of horizontal and vertical free gyration and 360-degree free torsion are realized; and since the two male couplers are hinged, a buffering effect is realized, the structure is more reasonable, the wear is reduced and the service life of the double-spherical-surface trailer coupler of the pump truck is improved.

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