59results about How to "Easy to install, use and maintain" patented technology

The invention discloses an electric paying-off automobile, and belongs to the technical field of electric winding-up and paying-off devices of cables. The electric paying-off automobile is flexible to move and convenient to use. According to the technical scheme, the electric paying-off automobile comprises an automobile frame, a triangle supporting frame, a cable wheel, hydraulic jacks and a hydraulic drive device; the triangle supporting frame is hinged to the tail end of the automobile frame through a supporting rod; the number of the hydraulic jacks is two; the ends of piston rods of the hydraulic jacks are hinged to sides opposite to the peak of the triangle supporting frame respectively; both the ends of cylinder bodies of the hydraulic jacks are hinged to the automobile frame. The electric paying-off automobile is applied to all kinds of electric power and communication departments.

The invention discloses an LED packaging method for high-power LED lighting fixtures, which comprises the steps: (1) selecting a rigid substrate or a flexible substrate as a substrate, setting a receiving hole of an LED light source on the substrate, and distributing connecting circuits on the surface; (2) covering an insulating film layer on the surface of the substrate (1) distributed with the connecting circuits to form an LED circuit board; (3) performing welding connection on pins of the LED light source and the connecting circuits on the LED circuit board; (4) adhering the LED circuit board to a radiator of a lamp by adopting high temperature resistant strong glue; and (5) ensuring that the LED light source passes through the receiving hole on the LED circuit board and is directly packaged on the surface of the radiator, and adopting a high thermal conductivity bonding material for thermocontact connection between the LED light source and the surface of the radiator. The process method is advanced and simple, has the advantages of novel, reasonable and compact structure, easy production and manufacture, low cost, and convenient use, installation and maintenance, is suitable for the high-power LED lighting fixtures, and is convenient for popularization and application.

The invention provides an electronic type CNG (Compressed Natural Gas) gas charging station sequence control panel. According to the charging scheme of a compressor that the priority level of a gas charging vehicle is the highest and then a gas storing device takes second place, the gas storing device is divided into three separated independent parts, and a three-stage sequence gas charging strategy is adopted, so that the gas charging speed of the gas charging vehicle is greatly increased, and the utilization efficiency of the gas storing device is improved. The electronic type CNG gas charging station sequence control panel comprises gas supply pipelines, an instrument gas pipeline and a control unit, wherein the gas supply pipelines comprise a main gas inlet pipeline connected with the outlet of the compressor, a high-pressure gas storage cylinder group gas inlet pipeline, a gas selling machine high-pressure gas feeding pipeline, a medium-pressure gas storage cylinder group gas inlet pipeline, a gas selling machine medium-pressure gas feeding pipeline, a low-pressure gas storage cylinder group gas inlet pipeline and a gas selling machine low-pressure gas feeding pipeline; and the main gas inlet pipeline is respectively connected with the high-pressure gas storage cylinder group gas inlet pipeline, the medium-pressure gas storage cylinder group gas inlet pipeline and the low-pressure gas storage cylinder group gas inlet pipeline through a ball valve and a check valve connected in sequence, and is further connected with a gas selling machine through a ball valve, a check valve and a pneumatic control valve.

The invention discloses a rainwater filter for buildings. The rainwater filter is characterized by comprising a filter body and connecting rings respectively arranged at the water inlet end and the water outlet end of the body, wherein the connecting rings can be connected with building drain pipes with various apertures; a filter element is arranged in the body; a water distribution disc is arranged between the filter element and the connecting ring at the water inlet end; the filter element comprises fine racks, adsorption fillers and an inner pipe from outside to inside in sequence. The filter has a simple structure and obvious effects and is convenient to install and maintain.

The invention provides a constant force support lifting frame for support lifting of thermal power pipelines. A main spring is mounted on a load pipe and fixed through a main spring pressure plate, auxiliary springs are mounted on two inner sides of an outer framework, two knife-shaped guide rails are mounted on the outer framework through a rotating shaft, the auxiliary springs on the two sides are connected with the knife-shaped guide rails through auxiliary spring pressure plates, and two groups of rollers are connected with the knife-shaped guide rails; the rollers move up and down and press the main spring when the load pipe is stressed by external force; and in different movement positions, swinging of the knife-shaped guide rails enable the auxiliary springs on the two sides to be compressed or stretched, the resultant force in the vertical direction is changed linearly and expresses the characteristic of being same with or opposite to the direction of the main spring force, and the force L output by the load pipe keeps constant during the whole movement process. The constant force support lifting frame has the advantages that the force balance principle design is adopted, the structural technology is simple and reasonable, friction pairs are less, the constant force support lifting frame is convenient to use, mount and maintain, the constancy is smaller than 4%, the load can exceed 200 KN greatly, the combination can be realized, and the precision can completely meet requirements of large-capability and high-performance equipment.

The invention discloses a beam crane with a top-arranged angular trolley. The two ends of a main beam are fixedly connected to end beams, a main beam top cover plate extends out of a main beam main web plate and a main beam auxiliary web plate for forming outer edge beam plates, the angular trolley is installed on the main beam, a square rail is welded to the upper surface of the main beam top cover plate, the angular trolley rolls along the square rail, and operation stop devices are welded to the two ends of the square rail; electrical equipment is connected to the angular trolley through a cable; a frame of the angular trolley is provided with a driving assembly, a hoisting electric block, a rolling wheel type tilting-preventing mechanism and a safety hook structure, and the rolling wheel type tilting-preventing mechanism and the safety hook structure are both installed in cooperation with the outer edge beam plates. According to the beam crane, the hoisting electric block is arranged at the upper part of the main beam, the lifting height can be effectively increased by more than 1.5 meters, the civil engineering cost can be effectively saved, the shortcomings that the lifting height of traditional beam cranes is small, the traditional beam cranes shake easily in the work process and positioning of suspended loads is difficult can be overcome, and the economical benefits are remarkable.

An automatic shaft multi-layer repair welding device comprises a platform (4). A shaft rotary fixing device is arranged on the platform (4) in parallel. The automatic shaft multi-layer repair welding device further comprises a welding operation rack (8). Three lead screws (9) are arranged on the welding operation rack (8) and are in central symmetry about the rotary axis of the shaft rotary fixing device. Driving nuts (10) are matched with the lead screws (9) and connected with a welding gun (11). A radial adjusting mechanism (12) and an angle adjusting mechanism (13) are arranged on the welding gun (11). The radial adjusting mechanism (12) can adjust the distance between a welding wire of the welding gun and the shaft repair welding surface in the radial direction of the axis of a welded shaft. The angle adjusting mechanism (13) can appropriately adjust the welding wire of the welding gun (11) to be flush with the rotating axis in the circumferential direction. The automatic shaft multi-layer repair welding device is simple in structure and practical and can conduct multi-layer repair welding on the shaft at the same time.

The invention relates to the technical field of mechanical transmission devices, in particular to a centrifugal type friction damper. The centrifugal type friction damper is composed of two parts of abraking ring and a centrifugal rotor, the centrifugal rotor comprises a rotor shaft, a centrifugal block support and a centrifugal block, a shaft gear is installed on the rotor shaft, the braking ring comprises a fixed ring and nitrile rubber bonded and connected to the surface of an inner hole of the fixed ring, the centrifugal rotor is assembled inside a bearing chamber of a shell body througha bearing at one end of the rotor shaft, the bearing at the other end of the rotor shaft is assembled inside the bearing chamber of a rear end cover, and the braking ring is installed and fixed on theinner cavity of the shell body through bolts. The centrifugal type friction damper is small in volume and compact in structure, no extra energy is needed, particularly, compared with an existing hydraulic damper, the oil-leakage problem does not exist, and the centrifugal type friction damper is convenient to install, use and maintain.

A self-lubricating bearing system, including a sliding bearing (1), an oil-storage groove (2), and lubricating oil (3). The oil-storage groove (2) is disposed in the sliding bearing (1). The lubricating oil (3) is disposed in the oil-storage groove (2). A housing (4) is fit on the sliding bearing (1). The housing (4) extends from front end surface of the sliding bearing (1). The top of the housing (4) bends inwards to form an oil-return barb (5). A retaining ring (9) is disposed on the front end surface of the sliding bearing (1). An oil-return hole (10) is formed between the retaining ring (9) and the sliding bearing (1). The oil-return hole (10) is connected to the oil-storage groove (2).

The present invention provides a wireless monitoring and control device for a greenhouse, characterized in that an STM32 processor which can be wirelessly connected with a plurality of LM35 temperature sensors distributed in the greenhouse is connected in series with a CC2530 sensor node, a CC2530 coordinator node and a PC terminal through a wireless transmission port, and the STM32 processor is connected with a temperature control device through a relay. By adopting a wireless network transmission mode to achieve general setting, the wireless monitoring and control device of the present invention is simple, flexible, stable and reliable, and is convenient, quick and accurate in temperature regulation and control in the greenhouse.

The invention discloses a porous gas-liquid mixed spraying device. The porous gas-liquid mixed spraying device comprises an injection pipe, wherein the injection pipe is connected with a slurry pump through a pipeline, the injection pipe is of a double-layer structure, a slurry storage pipe is arranged on the outer layer, and an air inlet pipe is arranged on the inner layer; spray holes are formedin the slurry storage pipe; air injection ports are formed in the positions, corresponding to the spray holes, of the air inlet pipe; the inner wall of the slurry storage pipe is not in contact withthe outer wall of the air inlet pipe, two ends of the slurry storage pipe are closed, and a slurry inlet is formed in the slurry storage pipe; and the air inlet pipe is connected with a compressed airpipeline.