7results about How to "Quick installation and maintenance" patented technology

The invention relates to the technical field of wind power generation, in particular to a wind power blade with a lightning protection system. The blade comprises a blade body, the blade body is composed of a root and a shell, a metal net interlayer is arranged in the inner wall of the shell, a notch is formed in the end, away from the root, of the blade body, a lightning arrester is arranged in the notch, the lightning arrester and the metal net interlayer are connected through two connecting structures, and the two connecting structures are arranged in a central symmetry mode. And a sealing structure is arranged above the two connecting structures in a sliding manner. The lightning arrester is installed in the notch in the end, away from the root, of the blade body so that lightning current can be guided during lightning stroke, the lightning arrester can slide in the notch so that installation, disassembly and maintenance can be facilitated, the lower lock shell is fixedly connected with the blade body, the upper lock shell is arranged on the side, away from the root, of the lower lock shell, and the upper lock shell is fixedly connected with the lightning arrester. Through mutual insertion of the lower lock shell and the upper lock shell, quick connection of the lightning arrester and the blade main body is realized.

The utility model discloses a kind of toilet water inlet valve, belong to toilet water inlet valve technical field, including water inlet valve main part;The outside of water inlet valve main part is slidably provided with connecting sleeve, one side of the connecting sleeve is fixedly installed with float cup, the inside of the float cup is provided with adjusting screw rod;Waterway flow divider is fixedly installed at the top of water inlet valve main part, air pressure lever is provided above waterway flow divider, through the linkage cooperation of float cup, adjusting screw rod, air pressure lever and valve core, water tank water level can be accurately perceived and controlled, avoid overflow or water shortage, guarantee toilet flushing effect and water-saving performance, satisfy the water level adjustment demand of different users Convenient installation and maintenance: the thread connection of joint, nut, and the quick clamping structure of clamping block, locking clamping block, make that water inlet valve installation is simple and efficient, when later maintenance, such as replacing valve core, filter screen and the like component, can be quickly disassembled and assembled, reduce maintenance difficulty and time cost.

This invention provides a waste liquid collection and temporary storage system and method under raised floors, including a main collection tank, a backup tank, a pneumatic diaphragm pump, a waste liquid inlet pipe, a waste liquid outlet pipe, a gas phase balance pipe, a connecting pipe, an exhaust pipe, and a liquid level detection device. The main collection tank and the backup tank are located below the raised floor, and the pneumatic diaphragm pump is located above the raised floor. The main collection tank and the backup tank are connected by the gas phase balance pipe and the connecting pipe, respectively. Waste liquid enters the main collection tank through the inlet pipe. The liquid level detection device monitors the liquid level and triggers the pneumatic diaphragm pump to deliver waste liquid. In case of abnormal inflow, the connecting valve is opened to expand the capacity of both tanks, forming a temporary storage space. The system is also equipped with a multi-stage liquid level detection device, a pneumatic ball valve, and an independent control box, possessing automatic control, pressure balancing, and overflow prevention functions. It has a compact structure, is safe and reliable, and can effectively improve the continuous operation capability and emergency buffering capability of the waste liquid collection system under raised floors.

The application relates to a seal structure for an aluminum alloy window sealing edge, in particular to a one-piece seal structure for an aluminum alloy window sealing edge, which has a constant cross section along the length direction. The cross section comprises a base part for fixing the seal structure body for the aluminum alloy window sealing edge, a cavity part provided with a hollow compression cavity, and a sealing part connected with the cavity part. The wall body of the cavity part comprises a pressure-bearing back plate connected with the base part and an elastic arc surface connected with the sealing part. The sealing part comprises a main sealing rib extending from the independent elastic arc surface and a secondary sealing rib arranged below the main sealing rib. The seal structure for the aluminum alloy window sealing edge is firmly fixed with the mounting groove through the above structure design, and when being extruded, the hollow compression cavity is deformed and the main and secondary sealing ribs of the sealing part are cooperated to provide excellent sealing performance and buffering performance, meanwhile, the structure is compact, the installation is convenient, and the sealing reliability and service life of the equipment or component are remarkably improved.

The utility model relates to the technical field of internet-of-things water meters, in particular to an internet-of-things water meter with a water quality detection function, which comprises a water meter main body, and a dial plate is arranged at the top end of the water meter main body; the replacement mechanism capable of rapidly replacing the activated carbon and detecting the water quality is arranged on the inner wall of the water meter main body; by arranging the replacement mechanism, the filter screen and the activated carbon adsorbent are matched to filter and purify water, the filter screen is attached to the inner wall of the water meter and can make contact with water flow in a large area to quickly filter the water flow, and the activated carbon adsorbent on the inner wall of the filter screen can be replaced by rotating a bottom cover to open the bottom cover. The filter screen can be taken down by rotating a dial plate, the activated carbon adsorbent can be replaced, the filter screen can be taken down by rotating a fixing cylinder, the sealing effect of the device can be achieved through a first sealing ring and a second sealing ring, the activated carbon adsorbent can be rapidly replaced and conveniently mounted and dismounted, and the using effect of the device is improved.

The invention discloses a direct current switching power supply conversion circuit capable of both bucking and boosting, belonging to the technical field of switching power supplies, comprising an input positive electrode, an input negative electrode, a buck-boost control terminal, a PWM control terminal, resistors R1-R3, diodes D1, D2, D3, D4, D5, operational amplifiers N1A, N1B, an inductor L1, a capacitor C1, an N-channel field effect transistor V2, a P-channel field effect transistor V1, an output negative electrode and an output positive electrode. When a low level is input to the buck-boost control terminal, a forward input terminal of the operational amplifier N1B can be pulled down through the diode D5, so that the circuit works in a BUCK buck mode; when a high level is input to the buck-boost control terminal, a reverse input terminal of the operational amplifier N1A can be pulled up through the diode D4, so that the circuit works in a BOOST boost state. The invention realizes the functions of both bucking and boosting, and has the advantages of good practicability, high economy and high efficiency.

The utility model relates to the technical field of optical fiber discs, in particular to an optical fiber disc capable of assisting in identifying optical fibers, which comprises a main body mechanism and a wiring mechanism, and the main body mechanism is provided with a protective shell, a second fixing screw hole, a fixing block and a third fixing screw hole, so that the protective shell of the optical fiber disc can be fixedly mounted in a required use area; and then through a wire inlet and a wire groove shaped like a Chinese character'chuan 'which are arranged on the wiring mechanism, the optical fiber wires are connected into the protective shell from the outside and are arranged in strands. Through the external U-shaped limiting plate and the internal U-shaped limiting plate arranged on the wire reel assembly, an optical fiber line can be coiled into the fixing disc along the limiting plates, disorder in the wiring process of an overlong line is avoided, and the practicability of the optical fiber reel is improved. Through an operation indicating lamp arranged at the top end of the optical fiber external interface and an observation window arranged at the top end of the box cover, in the actual use process, rapid identification, installation and maintenance of different optical fibers by installation and maintenance personnel are facilitated, and the working efficiency of the operation personnel is improved.