42results about How to "Flexible and convenient installation and disassembly" patented technology

The invention discloses a stair steel framework for a building. The stair steel framework for the building comprises two stair main beams, stair cross beams and a stair bottom slab; the stair cross beams are arranged between the two stair main beams, the stair beams are welded to the stair main beams, step vertical ribs are arranged on the stair main beams and are welded to the stair main beams, and reinforcing plates are arranged on the stair main beams and are welded to the stair main beams. The stair steel framework for the architecture fully solves the disadvantages of previous wooden frameworks and is flexible and convenient in installation and disassembly and height adjustment, labor and materials are saved, so that the construction quality is improved effectively and the construction cost is reduced, and the work efficiency is improved; and the quality of concrete forming is good, the stair steel framework is novel and attractive and low in cost and is not prone to being corroding, and can shorten the construction period and bring high efficiency to construction units when the stair steel framework for the building is used, and demoulding of the framework does not need to beworried about during construction.

The invention relates to a duckweed cleaner and a duckweed cleaning method. The duckweed cleaner comprises an overwater collecting mechanism, a processing mechanism and a remote control device. The overwater collecting mechanism is connected with the processing mechanism through a pipeline and conveys duckweeds and water into the processing mechanism for processing. The remote control device gives out operation instructions to control the overwater collecting mechanism to collect the duckweeds on a water area. The duckweed cleaner has the advantages that the duckweed cleaner is scientific in design, reasonable in structure, compact in device arrangement, low in cost, convenient to manufacture, simple to operate, convenient to mount and demount, convenient to transport, time-saving, labor-saving, high in work efficiency, and suitable for duckweed cleaning on different water areas, users do not need to enter water during operation, danger of manual duckweed cleaning is lowered, duckweed cleaning efficiency is increased, integration of intelligent duckweed cleaning and collecting is achieved, and the problems that traditional duckweed cleaning needs traction power of workers or mechanical ships and cleaning and collecting are difficult to separate.

The invention discloses a ventilating fan casing and a manufacturing method thereof, comprising a left wing plate, a right wing plate and an air guide box. The left wing plate is provided with an air inlet, and the right wing plate is provided with a motor installation hole and a motor The positioning mechanism, the side and top surface of the air guide box are respectively provided with a first air outlet and a second air outlet, and the air guide box is provided with an air collection cavity, a flow guide cavity, a first air outlet channel and a second air outlet channel, The air collecting cavity communicates with the first air outlet channel and the second air outlet channel through the guide cavity, the first air outlet channel and the second air outlet channel are respectively connected with the first air outlet and the second air outlet, and the first air outlet channel and the second air outlet are respectively connected. A sealing machine is arranged between the second air outlet channels. The method includes: processing the left wing plate, the right wing plate, the air guide box body and the shell assembly. The invention not only facilitates the quick installation of the ventilation fan, but also can select the corresponding air outlet according to the actual installation requirements, has good sealing effect, low noise, and is flexible and convenient to install and disassemble.

The invention discloses an LED display screen, comprising at least a panel and a plurality of LED light-emitting units, wherein, the panel is a gridding PCB panel and is integrally formed by horizontal PCB bars and vertical PCB bars, which are vertical to each other; the space between two adjacent horizontal PCB bars or vertical PCB bars is 5cm to 500cm; corresponding to each LED light-emitting unit, an installation position is arranged on the surface of the horizontal PCB bar or vertical PCB bar and is used for correspondingly installing and fixing each LED light-emitting unit; any LED light-emitting unit comprises at least a red LED, at least a green LED and at least a blue LED; the LEDs in the same color can be the LEDs in the same sorting level and the LEDs in the adjacent sorting levels. The LED display screen is high in transparency, good in heat dissipation effect, strong in wind resistance and convenient and flexible in assembly and disassembly.

The invention discloses a sway test device for a towering tower at sea, aiming to provide a safe and reliable sway test device whose motion simulation is more practical. Including tower, tower reinforcement mechanism and tower motion simulation mechanism. The tower strengthening mechanism includes a steel structure frame composed of multiple beams and columns passing through connectors, at least one circular tower hoop, and multiple dampers connecting the tower hoop and the beams in the same plane. The tower simulation motion mechanism includes the upper platform, the simulation motion driving unit and the sliding unit, and the simulation of the offshore working conditions of the tower is realized through the motion synthesis of the simulation motion driving unit and the sliding unit. The sliding unit is set in the tower motion simulation mechanism of the test device, which can not only realize the multi-degree-of-freedom swing of the tower, but also realize the drift motion of the tower, and the simulation motion simulation is more realistic. At the same time, the rigid-flexible combination of the steel structure frame and the damper is used to fix it, making it safer and more reliable to use.

The invention relates to the field of construction of shield tunneling sleepers, in particular to a safe and rapid combined shield tunneling light sleeper. The safe and rapid combined shield tunneling light sleeper solves the problems that according to an existing light sleeper, installation needs great effort, rail disengagement occurs during operation, maintenance needs a long time, and disassembly needs a large amount of labor after construction. The safe and rapid combined shield tunneling light sleeper comprises transport cart box iron sleeper bodies and shield tunneling sleeper bodies, wherein the shield tunneling sleeper bodies are assembled together with the two ends of the transport cart box iron sleeper bodies. The two ends of each transport cart box iron sleeper body is each provided with a U-shaped groove, and transport cart rails are arranged in the U-shaped grooves in the two sides of each transport cart box iron sleeper body. Each shield tunneling sleeper body comprises arc steel plates and arc step sleeper bodies, wherein the arc steel plates are attached to a tunnel bottom segment and are identical in radian, and the arc step sleeper bodies are fixed to the high ends of the arc steel plates. The lower end of each arc steel plate is provided with a protruding portion which is inserted into the corresponding transport cart box iron sleeper body. Each arc step sleeper body is provided with a clamping groove formed by two opposite rail clamping locating plates. Shield tunneling rails are arranged in the rail clamping grooves. By the adoption of the safe and rapid combined shield tunneling light sleeper, the frequency of rail disengagement during operation is reduced, construction safety is guaranteed, and the situation that personnel are specially assigned to conduct maintenance is avoided; the safe and rapid combined shield tunneling light sleeper has the advantages that the technology is simple and advanced, and the practicability is high.

The invention relates to a double-layer impact-proof assembled steel structure truss steel bar processing anti-smashing shed. The shed comprises a support unit comprising two square pipe columns and asupport frame, and column legs are arranged at the lower ends of the square pipe columns. The support frame comprises an inter-column truss connected between the upper ends of the two square pipe columns. Three inner trusses are uniformly connected on the other three sides of the upper end of each square pipe column. A rectangular frame composed of four outer trusses is arranged around the outerperiphery of six inner trusses, and each of the inner trusses, the outer trusses and the inter-column truss includes a truss upper chord, a truss lower chord and a truss web. A transverse brace is arranged between the two square pipe columns, and oblique braces are arranged between the side walls of the square pipe columns and the inner trusses. Elastic wooden formworks, steel wire meshes and color steel plates are laid on the upper and lower parts of the support frame, and advertisement boards are laid on the outer side of the outer trusses. The double-layer impact-proof assembled steel structure truss steel bar processing anti-smashing shed provided by the invention is convenient to assemble, stable in structure and high in safety performance.

A disclosed Y-shaped three-crawler-belt sliding integrated machine comprises a Y-shaped telescopic chassis and crawler-type elevating turning apparatuses; the Y-shaped telescopic chassis comprises a upper bottom plate, a lower bottom plate, three hollow main beams and three hollow telescopic beams; the three main beams are fixedly arranged between the upper bottom plate and the lower bottom plate in the shape of Y; each main beam is inside flexibly connected with one telescopic beam in an insertion manner; the outer end of each telescopic beam is disposed outside of the upper bottom plate and the lower bottom plate; the outer end of each telescopic beam is provided with the crawler-type elevating turning apparatus; and road construction equipment is arranged between the upper bottom plate and lower bottom plate and also between two adjacent main beams. The Y-shaped three-crawler-belt sliding integrated machine has the advantages that a modularization structure is employed, different working apparatuses in optional combination forms can be installed on the Y-shaped telescopic chassis according to user demands; the three crawler-type elevating turning apparatuses on the Y-shaped telescopic chassis enables the whole machine to travel and turn flexibly, and the integrate machine is applicable to various occasions; and the application field of the integrated machine is substantially developed, the working efficiency of the integrated machine is improved, the usage cost is low and the benefit is high.