The invention discloses a novel trundle. The trundle comprises a shaft rod, a bearing, a trundle core, a rubber coating layer arranged outside the trundle core in an injection molding mode, a bearing cover sleeving the outside of the shaft rod and covering the outside of the bearing, and a dustproof cover covering the side face of the trundle core; the trundle core comprises an inner ring part arranged outside the bearing in a sleeving mode, a first outer ring part arranged outside the inner ring part in a surrounding mode, a second outer ring part extending outwards from the first outer ring part, a plurality of connecting rods connected between the inner ring part and the first outer ring part, and an annular reinforcing rib extending outwards from the second outer ring part; an annular groove is formed between the first outer ring part and the second outer ring part, a plurality of grooves are formed in the annular reinforcing rib, and a plurality of rubber coating communicating holes are formed between the annular reinforcing rib and the outer ring parts; clamping holes are formed between the adjacent connecting rods, a plurality of through holes and mounting insertion holes are formed in the connecting rods, the inner side face of the dustproof cover extends inwards to form a plurality of clamping convex edges, and the inner side face of the dustproof cover extends inwards to form a plurality of clamping insertion columns; and the trundle core is of an integrated injection molding structure.
本发明公开一种新型的脚轮,包括轴杆、轴承、轮芯、注塑于轮芯外的包胶层、套设于轴杆外并盖设于轴承外的轴承盖、盖设于轮芯侧面处的防尘盖;轮芯包括套设于轴承外的内圈部分、围设于内圈部分外的第一外圈部分、由第一外圈部分朝外延伸出来的第二外圈部分、连接于内圈部分与第一外圈部分之间的若干连接杆、由第二外圈部分朝外延伸出来的环形加强筋;第一外圈部分与第二外圈部分之间设有环形凹槽,环形加强筋上设有若干凹槽,环形加强筋与外圈部分之间设有若干包胶连通孔;相邻的连接杆之间设有卡合孔,连接杆上设有若干通孔、安装插孔,防尘盖内侧面朝内延伸出若干卡合凸边,防尘盖内侧面朝内延伸出若干卡插柱;轮芯为一体注塑成型的结构。
Novel trundle
一种新型的脚轮
2021-09-14
Patent
Elektronische Ressource
Chinesisch
Trundle, installation method of trundle and application structure of trundle
Europäisches Patentamt | 2021
|Trundle assembly, trundle mounting structure and equipment with trundle mounting structure
Europäisches Patentamt | 2020
|