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Patent Agency Ranking
公开(公告)号：US11096547B1
公开(公告)日：2021-08-24
申请号：US17266646
申请日：2019-05-22
Inventor： Chenhui Zhu , Juhong Zhang
IPC: A47L13/58
Abstract: A water discharge control structure of a washing bucket capable of separating clean water from dirty water for washing a cleaning tool includes: a washing bucket body and a water storage tank, wherein the washing bucket body is internally provided with a lifting frame fitted with the cleaning tool, and the lifting frame is driven by the cleaning tool to be lifted and lowered relative to the washing bucket body; the water storage tank is connected to the washing bucket body and has a water outlet directing to the cleaning tool, a discharge of water of the water outlet is controlled by a plug, and when the lifting frame is in a high position, the lifting frame drives the plug to block the water outlet; and when the lifting frame is in a low position, the lifting frame drives the plug in a linked manner to open the water outlet.
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公开(公告)号：US11891857B2
公开(公告)日：2024-02-06
申请号：US16885279
申请日：2020-05-28
Inventor： Chen Hui Zhu , Baisong Yao
CPC classification number: E06C1/20 , E06C1/387 , E06C1/393 , E06C7/08 , E06C7/082 , E06C7/083 , E06C7/086 , E06C7/42 , E06C7/50 , E06C7/48
Abstract: An assembled ladder includes two supporting leg assemblies, at least one rung and a bridging part, wherein each supporting leg assembly of the two supporting leg assemblies includes a front supporting leg and a rear supporting leg rotatably connected to the front supporting leg, and the at least one rung and the bridging part are detachably connected between the two supporting leg assemblies. During logistics transportation, the at least one rung is detached from the two supporting leg assemblies, the bridging part is also detached from the two supporting leg assemblies, and the two supporting leg assemblies are stacked. In use, two ends of the bridging part are fixedly connected to the two supporting leg assemblies, and two ends of the at least one rung are also fixedly connected to the two supporting leg assemblies.
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公开(公告)号：US20210015335A1
公开(公告)日：2021-01-21
申请号：US17042920
申请日：2019-03-19
Inventor： Chenhui ZHU , Kaifeng LU
IPC: A47L13/58 , A47L13/258
Abstract: A mop cleaning device capable of separating clear water from wastewater includes a rotary mop, a bucket, a clear water container, and a valve for controlling on-off of water outflow, wherein the rotary mop comprises a rotary mop rod and a mop head, and the rotary mop rod is connected to the mop head; a support body for supporting the mop to realize rotation is disposed on the bucket; the clear water container has a clear water outlet, the liquid level in the clear water container is higher than the clear water outlet for clear water to flow to the mop head from the clear water container, and the valve is connected to the clear water outlet.
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公开(公告)号：US20200378183A1
公开(公告)日：2020-12-03
申请号：US16885279
申请日：2020-05-28
Inventor： CHEN HUI ZHU , BAISONG YAO
Abstract: An assembled ladder includes two supporting leg assemblies, at least one rung and a bridging part, wherein each supporting leg assembly of the two supporting leg assemblies includes a front supporting leg and a rear supporting leg rotatably connected to the front supporting leg, and the at least one rung and the bridging part are detachably connected between the two supporting leg assemblies. During logistics transportation, the at least one rung is detached from the two supporting leg assemblies, the bridging part is also detached from the two supporting leg assemblies, and the two supporting leg assemblies are stacked. In use, two ends of the bridging part are fixedly connected to the two supporting leg assemblies, and two ends of the at least one rung are also fixedly connected to the two supporting leg assemblies.
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公开(公告)号：US20200240208A1
公开(公告)日：2020-07-30
申请号：US16296226
申请日：2019-03-08
Inventor： CHEN HUI ZHU , BAISONG YAO
IPC: E06C7/08
Abstract: A rung mounting structure used for a ladder includes supporting legs, a rung and a connecting plate, wherein upper ends of the two supporting legs are connected through the connecting plate, the rung is arranged between the supporting legs, the supporting legs are made of metal sections, concave parts are arranged on inner sides of the supporting legs and each are provided with an opening allowing the rung to be inserted therein, and the sides, opposite to the openings, of the concave parts are sealed; and after the rung is inserted into the concave parts, the rung and the supporting legs are circumferentially limited and are fixedly connected.
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