448results about How to "Easy to install" patented technology

The invention relates to a wireless monitoring system and method for a modal parameter of a blade of a fan. The method comprises the following steps of: A, collecting a vibration acceleration signal of a blade according to periods; B, processing the signal collected in the step A to obtain a digital signal; C, processing the digital signal obtained in the step B to obtain the modal parameter of the blade, and meanwhile, reading the air speed of the fan and variable pitch data; D, storing the data obtained in the step C, and transmitting the data to a remote analysis terminal; and E, carrying out analytical calculation on the data to obtain the inherent frequency and vibration mode of the blade. The system comprises a coordinator and more than one sensor fixedly arranged on the blade. By using the wireless monitoring system for the modal parameter of the blade of the fan, provided by the invention, the real-time modal parameter of the blade of the fan can be obtained through monitoring the vibration of the blade; the monitoring method and a mounting way are simple; no strain gauge is used, and correction on a result is not needed; and the test process is independent from the operation process of the fan, therefore, stopping of the fan is not needed.

The invention discloses a basic mechanical property testing device of a drill core sample and relates to a structure reinforcement detection device. The testing device comprises an upper connecting seat and a lower connecting seat, wherein a connecting screw hole is formed in the upper side of the upper connecting seat; a connecting groove is formed in the lower side of the lower connecting seat; an upper pressing seat is arranged on the lower side of the upper connecting seat; an upper pressing groove is formed in the lower side of the upper pressing seat; a lower pressing seat is arranged on the upper side of the lower connecting seat; a lower pressing groove is formed in the upper side of the lower pressing seat; T-shaped grooves are formed in the lower side of the upper connecting seat and the upper side of the lower connecting seat respectively, and T-shaped sliding seats matched with the T-shaped grooves are arranged on the upper pressing seat and the lower pressing seat respectively; the upper pressing seat comprises five pressing blocks; two connecting holes are formed in each pressing block; connecting screw rods are arranged in the connecting holes in a penetrating manner; and connecting nuts are arranged at the two ends of the connecting screw rods. The device has the advantages of being simple in construction, reasonable in structure, good in economy, simple in mounting, stable, simple and convenient to use, high in testing data precision and the like.

A system for connecting a power-supply battery to a motor vehicle, including a device for ventilating the battery, and a multi-connection plate which includes openings for connecting to at least two ducts for circulating a heat-transport fluid, and for connecting to the battery so as to connect the at least two ducts to an inner circulation circuit of the battery.

The invention discloses a non-contact acoustic monitoring and LoRa transmission system based on a stereo garage, and the system comprises the stereo garage, four wireless sensor nodes are installed on each lifting platform of the intelligent stereo garage, a sound sensor is used for collecting sound signals after an automobile enters the garage, and data transmission is carried out through LoRa. The four wireless sensor nodes transmit collected sound to the upper computer, the upper computer judges the position and state of an automobile engine by using a sound source localization method, and the invention further discloses a non-contact acoustic monitoring and LoRa transmission method based on the stereo garage. New wires and network cables are not needed, and installation is convenient and flexible. An existing intelligent stereo garage only needs to be directly installed on the lifting platform, and rewiring is not needed. According to the transmission method, a LoRa self-organizing clustering network is adopted, a plurality of entrances and exits can be remotely monitored, and operators on duty at the entrances and exits are reduced.

The invention discloses an electricity bird repelling device. The electricity bird repelling device includes a lower ring for fixing and installing a pole number sign; side plates vertically extending are fixedly arranged on sides of the lower ring; a plurality of side holes are arranged in the side plates from top to bottom; and the side holes are arranged in two lines at intervals; the electricity bird repelling device includes a U-shaped hoop which is in clamping fit with a main rod of a ladder of an electricity door-shaped tower; two ends of the hoop and the corresponding side holes form inserting fit; side nuts are screwed on the two ends of the hoop; a top plate is fixed on the upper end of the lower ring; and a locking device is arranged on the top plate, wherein the locking device and a connection piece for fixedly connecting the electricity door-shaped tower and the ladder form a locking fit. The advantages of the electricity bird repelling device are that the electricity bird repelling device is simple in structure, is small in size, cannot affect power distribution, is easy and rapid to install, can avoid drilling holes in a tower, can be fixed firmly, can repel birds all-weather, is long in repelling effect, and is easy to demount and maintain.

The invention through its personal protective equipment (PPE) may warn the roof worker when that roofer moves beyond the setback selected from the exposed unprotected roofs edge, beyond which a fall causing injury or a fatality may occur. The PPE monitors each worker, keeping them back from the roofs edge according to OSHA fall standard 19260501b10. The transmitter keeps a log of the date and time incursions occur beyond the selected setback for each workers' PPE. This information is stored in a transmitter and downloaded via a smart phone APP created and coded by this new art and sent to management, insurer, and OSHA for safety compliance and production monitoring. The hardhat PPE offers additional safety protection.

The invention relates to the technical field of municipal engineering sewage treatment, in particular to a hydraulic cyclone separation type sewage intercepting well and a construction method. The hydraulic cyclone separation type sewage intercepting well comprises a cushion layer, a well body and a well lid, wherein the well body is connected to the cushion layer, the well lid covers the upper end of the well body, a water inlet pipe and a water outlet pipe are connected to the well body, a rotational flow cylinder is arranged on the upper portion of the well body, a rotational flow ring area is formed between the rotational flow cylinder and the inner wall of the well body, the water inlet pipe communicates with the rotational flow ring area in the tangential direction of the well body, the water outlet pipe extends into the well body and communicates with the interior of the rotational flow cylinder, a flow guide groove is formed in the lower portion of the rotational flow cylinder, the whole flow guide groove is conical, and the smaller end of the flow guide groove is arranged downwards. The hydraulic cyclone separation type sewage intercepting well has the effect of reducing the blockage problem.

The invention discloses an integrated intelligent light control lamp which is internally provided with a photoreceptor and capable of avoiding self-excitation and ensuring correct and automatic turning on and off operation. The integrated intelligent light control lamp comprises a control circuit, an LED light source, and the photoreceptor in the integrated intelligent light control lamp; the control circuit comprises a power supply circuit (1), a central controller (2), a central controller power supply circuit (3), a phase angle signal detection circuit (4), a photosensitive signal detection circuit (5), a turning on-off operation control circuit (6), and an LED light source control circuit (7); the phase angle signal detection circuit (4) feeds back phase angle signals obtained from the power supply circuit (1) to the central controller (2); the photosensitive signal detection circuit (5) feeds back lighting signals collected by the photoreceptor to the central controller (2); the central controller (2) judges the light control lamp is turned on or off according to signals provided by the photosensitive signal detection circuit (5) and sends turning on-off signals to the turning on-off operation control circuit (6); the turning on-off operation control circuit (6) controls running of the LED light source control circuit (7); the LED light source control circuit (7) provides stable supplying power for the LED light source for achieving lighting. The scheme disclosed by the invention can be applied in the field of the integrated intelligent light control lamp.

The invention relates to a multi-dimensional electromagnetic intelligent vibration reduction device, in particular to a protective device for high-rise structures such as power transmission towers. Inparticular, the outer part of an upper part is provided with a rod piece which is fixedly connected to a structure, when the vibration occurs in the horizontal direction, a ball screw drives upper discs to rotate, and after a spring is stretched, a magnetically controlled shape memory alloy is stretched, so that the magnetically controlled shape memory alloy deforms and consumes energy; a middlepart is provided with a middle disc which can rotate universal freely, a mass ball which is filled with damping liquid and can roll freely is placed on the middle disc, when the mass ball shakes, themass ball impacts piezoelectric ceramics which are installed all around the middle disk, the generated current is collected to an upper current collector, when the current reaches a certain value, theelectrical circuit is disconnected, and a magnetic field disappears suddenly, so that the magnetically controlled shape memory alloy shrinks to the original shape trend, the energy consumption of theupper part is increased; the upper part and the middle part are not firmly connected, so that the energy consumption occurs when torsion of the structure occurs; and when the structure vibrates in the vertical direction, the lower part and the middle part are connected with springs so that the the upper and middle parts of the device can vibrate to consume energy. The multi-dimensional electromagnetic intelligent vibration reduction device is easy to install and disassemble, has strong energy consumption capacity, and has a wide range of anti vibration functions.

The invention discloses a servocontrol-based automatic electric welding analytic system and a usage method thereof. The system comprises a signal processing unit, an executing unit and a signal acquiring unit. The system has the advantage of being simple in structure, convenient to install and flexible to operate. The system can be applied to welding conditions such as routine constant-speed welding and automatic wire-feed length adjustment welding, simultaneously, by the aid of the system, the sampling analysis for welding current and voltage can be performed, and the automatic welding of welding rods is achieved.

The invention relates to the field of micro motor manufacture, and particularly discloses a rotor shaft pressing machine for manufacturing a micro motor. The rotor shaft pressing machine comprises a base, and is characterized in that an upright post is fixed on the base; a power device is mounted at the upper end of the upright post; a pressing down device is in threaded connection with the lower end of the power device; a rotor shaft hole is formed in the lower surface of the pressing down device; a fixing seat is movably connected to the base; a slotted hole is formed in the fixing seat; a positioning sleeve is matched with the slotted hole; the inside diameter of the upper part of the positioning sleeve is large while the inside diameter of the lower part of the positioning sleeve is small; the inside diameter of the upper part of the positioning sleeve is the same as the diameter of a rotor iron core; the inside diameter of the lower part of the positioning sleeve is the same as the diameter of the rotor shaft. As manual operation in the prior art is replaced by mechanical operation, and the mounting of the rotor shaft is realized through the pressing down device, the mounting of the rotor shaft becomes easy, time-saving and labor-saving, and the production efficiency is greatly improved.

The invention discloses an auxiliary electrode structure for large-scale grounding grid ground resistance measurement. The auxiliary electrode structure is characterized by comprising a central support rack (1) made of metal material, wherein the center of the central support rack (1) is provided with a positioning hole, a central metal post is arranged in the positioning hole, an outer side of the central support rack (1) is connected with six uniformly distributed support arms (4) made of metal material via six rotating pins (3), an end part of each support arm (4) is provided with a positioning sleeve cylinder (5), and a side edge metal post (6) is arranged in each positioning sleeve cylinder (5). The auxiliary electrode structure can help solve a problem of poor ground connection of a conventional auxiliary electrode, test interference can be lowered, test precision can be improved, and convenience of installation and utilization can be improved.

The invention discloses a flexible smoke deflector module and a mounting method. The flexible smoke deflector module comprises a flexible smoke deflector and a plurality of fixed parts; the flexible smoke deflector comprises a metal net and a filling material; the filling material is wrapped in the metal net, one side of the flexible smoke deflector is fixed on an outer wall of a cabin unit by thefixed parts, and the oppositely arranged side of the flexible smoke deflector is fixed on a connecting part of the cabin located by the cabin unit by the fixed parts. The flexible smoke deflector wraps the material filling way by adopting the metal net, the weight is light, and the large-amplitude bending or deformation can be performed; the smoke deflector module can be fixed in the cabin through the fixed parts, the obstacle on the cabin-in mounting of the cabin unit is avoided, and the flexible smoke deflector module has the features of being simple in manufacturing and convenient to mount, the welding work is greatly reduced, the construction cost and cycle are shortened.