The invention relates to a supermarket cart which comprises a cart frame with universal wheels at the bottom. A handrail is arranged on the cart frame; a driving rod is rotatably connected to the handrail; a supporting plate is arranged in the cart frame; a supporting pipe is arranged on the supporting plate; a stand column is slidably connected into the supporting pipe; a stool is connected to the stand column; a supporting cylinder is rotatably connected to the supporting plate; the supporting cylinder is connected with the driving rod through a driving belt; a first gear ring is arranged onthe supporting cylinder; a stand column is slidably connected with a second gear ring used for being meshed with the first gear ring through a sliding rod; a first magnet is arranged on the second gear ring; a supporting disc is rotatably connected to the stand column; a second magnet and a third magnet are arranged on the supporting disc; the second magnet and the first magnet attract each other; the third magnet and the first magnet repel each other; and the supporting disc is connected with the stand column through a positioning mechanism. The supermarket cart has the following advantagesand effects: the scheme utilizes a new mechanical structure to achieve the purpose of improving the protection effect on the cervical vertebra of an infant.
本发明涉及一种超市推车,包括底部具有万向轮的车架,所述车架上设置有扶手,扶手上转动连接有驱动杆,车架内设置有支撑板,支撑板上设置有支撑管,支撑管内滑动连接有立柱,立柱连接有坐凳,支撑板上转动连接有支撑筒,所述支撑筒与驱动杆之间通过驱动带连接,所述支撑筒上设置有第一齿环,立柱通过滑杆滑动连接有用于与第一齿环啮合的第二齿环,第二齿环上设置有第一磁体,立柱上转动连接有支撑盘,支撑盘上设置有第二磁体和第三磁体,所述第二磁体与第一磁体吸引,所述第三磁体与第一磁体相斥,支撑盘通过定位机构与立柱连接。本发明具有以下优点和效果:本方案利用新机械结构,达到提升对幼儿颈椎保护作用的目的。
Supermarket cart
一种超市推车
2020-12-25
Patent
Electronic Resource
Chinese
IPC: | B62B Von Hand bewegte Fahrzeuge, z.B. Handkarren oder Kinderwagen , HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS |