3results about How to "Problems affecting normal work" patented technology

The application discloses a drought-resistant and flood-draining pump with a buffer base, relates to the technical field of water conservancy projects, and is used for solving the problems that the existing pump body is easily blocked by floating objects during work, is damaged, and is easily deviated due to vibration generated during the work of the pump body, and comprises a pump body, a chassis and a handrail, the pump body is installed at the top of the chassis, the top of the chassis is fixed with the handrail through spot welding, the bottom of the chassis is installed with a supporting assembly, one side of the pump body is installed with a cleaning assembly, the sleeve is communicated with the pump body through bolts, the inside of the sleeve is fixedly connected with a fixing frame, and the fixing frame is movably connected with a first rotating blade on one side through a bearing. Compared with the prior art, the application has the advantages that the pump body can be better damped, floating objects in flowing water can be effectively collected, and the floating objects are prevented from entering the inside of the pump body to affect the work of the pump body.

This invention provides a photoelectric sensor comprising a transmitter and a receiver. Both the transmitter and receiver include: a housing; a circuit board disposed inside the housing; and a cable electrically connected to the circuit board. The cable in the receiver is a four-core cable, one of which has a signal input core for switching between normally open and normally closed modes. This photoelectric sensor allows for rapid L / D switching by inputting a control signal through the four-core cable with the signal input core. It eliminates the need for adjustment knobs, sealing rings, rotary switches, and small substrates required for L / D switching in the original three-core cable configuration, effectively simplifying the sensor structure, reducing production costs and assembly time, and simultaneously improving the automation level of the photoelectric sensor.

The utility model discloses a floor brush assembly for a cleaning device and the cleaning device. The floor brush assembly comprises a shell which comprises an air suction opening and an air outlet, and a dust suction air channel is formed between the air suction opening and the air outlet; the rolling brush assembly is arranged on the bottom side of the shell, and at least part of the dust collection air duct is located on the top side of the rolling brush assembly; the shell comprises a shell body, a top opening enabling at least part of the dust collection air channel to be exposed on the top side of the shell is formed in the shell body, and the top opening is located between the air suction opening and the air outlet. The cover plate is movably connected to the shell body so as to open or close the top opening, and when the cover plate closes the top opening, the cover plate and the shell body are enclosed to at least partially form a dust collection air duct. When blockage and other conditions occur in the dust collection air duct and need to be treated, a user can move the cover plate to open the top opening for cleaning, and the problem that dirt blocks the dust collection air duct and affects normal work of the floor brush assembly is solved.