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148 results about "Roof window" patented technology

A roof window is an outward opening window that is incorporated as part of the design of a roof. Often confused with a skylight, a roof window differs in a few basic ways. A roof window is often a good option when there is a desire to allow both light and fresh air into the space.

Agricultural informatization production wireless monitoring system

The invention discloses an agricultural informatization production wireless monitoring system, comprising a meteorological station, a control center, a data platform, a wireless transmitter, a greenhouse field data collector, an environment sensor, an IP network camera, a digital display screen and a controller. The meteorological station is connected with the control center via a signal line. The control center is connected with the greenhouse field data collector, the environment sensor, the IP network camera, the digital display screen and the controller by the data platform in the wireless transmission way. The agricultural informatization production wireless monitoring system of the invention can collect parameters of greenhouses in real time, such as internal and external temperatures, humidity, carbon dioxide concentration, illumination intensity, soil moisture, soil Ph value, growth cycle video and the like, which are displayed to management users in a manner of visual charts and curves. In addition, the agricultural informatization production wireless monitoring system provides various acousto-optic warning information according to the requirement of cultivated plants. Furthermore, by means of the control center, roof windows, side windows, internal and external shading screens, micro fog systems, draught fans, heating systems, circulation draught fans and other devices of greenhouses are remotely controlled.
Owner:HUNAN UNIV OF HUMANITIES SCI & TECH

Sectional sliding roof steel truss assembling method

The invention relates to a sectional sliding roof steel truss assembling method. The method is characterized by including the following steps of building a construction platform (5), preparing steel truss basic component units (24), installing first piston shoes (20) and second piston shoes (21), installing support trusses (2), installing longitudinal main trusses (22), installing transverse main trusses (23), lifting, assembling and transversely connecting the steel truss basic component units (24), sliding sectional steel trusses (1), putting the sectional steel trusses (1) in position, assembling the other sectional steel trusses (1), sliding the other sectional steel trusses (1), putting the other sectional steel trusses (1) in position, connecting transverse rods among the sectional steel trusses (1), disassembling second piston shoes (21) and sliding rails (3), and disassembling the construction platform (5). The method belongs to the field of steel structure engineering, roof steel trusses are prepared in sections and put in position by sliding, the problems that roof window construction time of an existing operating railway is short and difficulty of the construction is large are effectively solved, the construction efficiency is improved, and when applied in practical engineering, the method can obtain good technical and economic benefits.
Owner:CONSTR & INSTALLATION ENG THE THIRD ENG GROUP OF CHINA RAILWAY

Internet-of-things-based water and fertilizer integration drip irrigation technology monitoring system

The invention relates to an internet-of-things-based water and fertilizer integration drip irrigation technology monitoring system. The system comprises a data collector, a temperature sensor, a humidity sensor, an air speed sensor, an air direction sensor, a rain sensor, a control center, an external sunshade system, an internal sunshade system, a roof window system, a side window system, a fan, a heating system, a sound-light alarm system, a light supplementing system, a carbon dioxide system and a wet curtain water pump. The temperature sensor, the humidity sensor, the air speed sensor, the air direction sensor, the rain sensor and the data collector are connected; the external sunshade system, the internal sunshade system, the top window system, the side window system, the fan, the heating system, the sound-light alarm system, the light supplementing system, the carbon dioxide system, the wet curtain water pump and the control center are connected. The data collector is connected with the control center. The monitoring system can mobilize the regional agricultural sector enthusiasm, and integrates power of all parties to promote agricultural internet of things application jointly.
Owner:河南瑞海科技发展集团有限公司

Pocket adjustable protruding crystal mapping microscope

InactiveCN103713384AClear test effectMicroscopesMagnifying glassEngineering
The invention discloses a pocket adjustable protruding crystal mapping microscope. On the basis that the mapping of a cap-like clearance double-convex lens in an upper cylinder cover roof window is amplified by one hundred times, a perspective adjustable protruding crystal mapping mirror in a cavity is observed through eyes, an adjustable protruding crystal liquid ball cover is used for covering a detected object between sampling detection glass slices through amplification or reduction, liquid drops or animal and plant biological slices are clamped and putted, and the coexistence of multiplication and refraction enables a perspective view of watching golden fish through a glass fish jar, and the reamplified observation is also suitable for lab tests under a magnifier and a routine microscope, and observation of living states of microorganisms, parameciums, mites and the like, and so on. Through combination with a left hand to rotate the upper cylinder cover roof window to rise or descend and a right hand to rotate an optically focused reflector and an adjusting handle in a lower cylinder oval window, the observation of the clearest test effects can be sought, the purpose of getting students to be interested in animal and plant biology courses and hygiene general knowledge courses under the guidance of teachers is realized, and the pocket adjustable protruding crystal mapping microscope serves both as a toy and a teaching aid.
Owner:徐宝生

Assembling method of segmental sliding roof steel truss

The invention relates to a sectional sliding roof steel truss assembling method. The method is characterized by including the following steps of building a construction platform (5), preparing steel truss basic component units (24), installing first piston shoes (20) and second piston shoes (21), installing support trusses (2), installing longitudinal main trusses (22), installing transverse main trusses (23), lifting, assembling and transversely connecting the steel truss basic component units (24), sliding sectional steel trusses (1), putting the sectional steel trusses (1) in position, assembling the other sectional steel trusses (1), sliding the other sectional steel trusses (1), putting the other sectional steel trusses (1) in position, connecting transverse rods among the sectional steel trusses (1), disassembling second piston shoes (21) and sliding rails (3), and disassembling the construction platform (5). The method belongs to the field of steel structure engineering, roof steel trusses are prepared in sections and put in position by sliding, the problems that roof window construction time of an existing operating railway is short and difficulty of the construction is large are effectively solved, the construction efficiency is improved, and when applied in practical engineering, the method can obtain good technical and economic benefits.
Owner:CONSTR & INSTALLATION ENG THE THIRD ENG GROUP OF CHINA RAILWAY

Device for expanding left and right roof windows of wide and narrow multi-span greenhouses with same angle

The invention discloses a device for expanding left and right roof windows of wide and narrow multi-span greenhouses with the same angle, and relates to opening and closing of greenhouse roof windows. The device comprises columns, trusses, motors, gears, racks, push-pull rods, and supporting rods, and the supporting rods are hinged to the greenhouse roof windows. The device is characterized in that a front expanding apparatus and a rear expanding apparatus are parallelly installed on the trusses. The front and rear expanding apparatuses are respectively formed by motors, reducers, track gears, rack connection push-pull rods, stroke compensation mechanisms, left and right side roof windows and supporting rods. The front stroke compensation mechanism and the rear stroke compensation mechanism have the same structure which is a telescopic sleeve structure and formed by an outer sleeve, an inner cylinder, a spring and an inner supporting cylinder. The device has the beneficial effects that the stroke compensation mechanisms are connected to the push-pull rods, stroke difference between lateral movement of the push-pull rods of the narrow greenhouse and the wide greenhouse is compensated, and therefore the roof windows of the wide and narrow greenhouses can be expanded with the same angle. Motors and transmission devices thereof are saved, and investment is saved.
Owner:QINGDAO LANTIAN GREENHOUSE
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