51results about How to "Quick installation and maintenance" patented technology

A cabin services system for an aircraft is disclosed. The cabin services system comprises at least one wireless network, the at least one wireless network providing at least one cabin service. The cabin services system further includes a cabin attendant panel for communicating with the at least one wireless networks and configured to control the at least one cabin service.

A mounting rail system for a cabin services system of an aircraft is disclosed. The mounting rail system comprises a mounting rail for providing power, and at least one circuit coupled to the mounting rail for allowing for operation of functionalities of a passenger services unit.

The invention discloses a two-component spraying system which comprises a first material conveying system, a second material conveying system and a spray gun, wherein the structure of the first material conveying system is identical to that of the second material conveying system; a discharge port of a first material conveying pump of the first material conveying system is communicated with a mixing device through a first material conveying pipe; a first gear pump and a first flow meter are sequentially arranged on the first material conveying pipe; the output end of the mixing device is connected with the spray gun; the output end of a programmable logic controller (PLC) is respectively connected with the control ends of the first gear pump and a second gear pump; and the output ends of the first flow meter and a second flow meter are respectively connected with the input end of the PLC. In the invention, the PLC and the flow meters are used for accurately controlling the flow and the ratio of two-component coatings, and the flow and the ratio are automatically regulated by utilizing programs; and the ratio regulation range of two components is wider.

The invention discloses a steering control device for electric wheel mining dump trucks, which belongs to the technical field of steering control system application. The steering control system comprises a steering control system body, which comprises a sucked oil filter, a constant-pressure variable plunger pump, a high-pressure filter, a return oil filter, an integrated steering brake block, steering energy accumulators, a small-displacement steering gear, a steering flow amplifier and double-acting steering cylinders, the constant-pressure variable plunger pump is respectively connected with an oil source and the integrated steering brake block through the sucked oil filter and the high-pressure filter, the return oil filter is directly connected with the integrated steering brake block, the integrated steering brake block is respectively connected with the steering energy accumulators, the small-displacement steering gear and the steering flow amplifier through oil passages, and the steering flow amplifier is connected with the double-acting steering cylinders through oil passages. The steering control system has the beneficial effects that: the structure is simple, the size is small, the weight is light, and the steering control system is quick and convenient to mount and repair and handy to control, is safe and reliable, and brings more convenience to driving.

The invention discloses a multi-point injection intake pipe of a gas engine. The multi-point injection intake pipe of the gas engine comprises an intake pipe body and a fuel gas spraying pipe. The intake pipe body is provided with an intake manifold which can be communicated with an intake channel of a cylinder cover of the gas engine. A fuel gas channel is integrally cast on the inner side of the bottom pipe wall of the intake manifold. The outlet of the fuel gas channel is located in the intake manifold. The inlet of the fuel gas channel is used for being connected with a fuel gas control valve of the gas engine. One end of the fuel gas spraying pipe is connected with the outlet of the fuel gas channel, and the other end of the fuel gas spraying pipe is used for stretching into the intake channel of the cylinder cover of the gas engine. According to the multi-point injection intake pipe of the gas engine, fuel gas can be directly sprayed into the gas channels of all cylinders, the amount of residual fuel gas in an intake main pipe can be reduced to the maximum extent, generation of flame back and explosion is avoided, and the operation safety of the gas engine is improved greatly.

A networking cable connects and disconnects with an information handling system port through activation of a push-push latch. A first push of the cable's connector, such as a RJ-45 connector, into a port engages the push-push latch to secure the cable in the port. A second push of the cable's connector into the port releases the push-push latch to allow removal of the cable from the port. A cable connector having a clip avoids engagement of the clip with the port by openings of the port and latch that are aligned with the clip. A biasing mechanism provides a biasing force against the cable connector to aid in removal of the cable from the port.

The invention provides a material separation screen plate, a vibration screen device comprising the material separation screen plate, as well as stirring equipment comprising the device, and generally relates to the field of engineering equipment. A plurality of feed holes are formed on the material separation screen plate, and the material separation screen plate is of a middle-high peripheral-low structure, and is provided with opposite inner concave lateral sides in which projections in vertical direction are of inner concave shapes. The vibration screen device comprises a feed device and a vibration separation device, and the feed device is detachably arranged at the inlet on the top of the vibration separation device, wherein the feed device comprises a feed case and a separation screen plate, wherein a feed port is formed on the top of the feed case; and the separation screen plate is arranged inside the feed case, and a plurality of inlet holes are formed on the separation screen plate. The vibration screen device has a simple structure, is convenient to assemble and disassemble, and realizes that the separation effect is improved, so that a material can be uniformly distributed on a screen after entering from the feed port.

The invention relates to a pipeline system capable of achieving hydraulic support long-distance liquid supply, and belongs to the technical field of coal mine long-arm working face fully-mechanized coal mining production. The pipeline system is composed of a main liquid inlet pipeline system, a main liquid return pipeline system and a spraying pipeline system. Each pipeline system comprises a diverter, pipelines, pipeline connectors, a reducer tee, a safety valve, a bypass hose, a pressure gauge, a pressure gauge switch, a multi-groove type high-pressure flat-plate brake valve, a mining U-shaped pin type quick connector, converters, universal bends and multi-angle bends, wherein the mining U-shaped pin type quick connector is used for being connected with a hose assembly or other hydraulic parts to enable working liquid to flow or block the working liquid, the mining U-shaped pin type quick connector is connected through U-shaped pins, the converters are used for transition connection of metal pipelines and hoses, and the universal bents and the multi-angle bents are used for transition of a complex roadway. Due to the adoption of the structure, long-distance split type arrangement of a pump station and a power station of a coal mine fully-mechanized coal mining working face liquid supply pipeline and a coal mining face is achieved, pressure detection and control of the liquid supply pipeline is achieved, equipment and the pipeline can be rapidly and conveniently installed and maintained, and meanwhile simultaneous long-distance liquid supply of a plurality of working faces is achieved.

The invention relates to an electrical method treatment apparatus for increasing the concentration multiple of circulation water. According to the electrical method treatment apparatus, electrode members contain alternating electrodes (5), a grounding electrode (6) and a grounding protection cover (7), wherein a group comprising at least the two alternating electrodes (5) is arranged inside the barrel-like grounding protection cover (7), and the grounding protection cover (7) is connected with the grounding electrode (6); and control members contain an oscillation circuit module (1), a power supply (2), a control circuit module (3) and an output module (4), wherein the power supply (2) and the control circuit module (3) are connected, and the control circuit module (3), the oscillation circuit module (1) and the output module (4) are connected. With the electrical method treatment apparatus, the concentration multiple of the circulation water in the prior art can be increased to more than 1 time; the pollution discharge of the circulation water is reduced by more than 1/2; the hardness, the conductivity and the turbidity of the circulation water are reduced by more than 30%; and the chloride ions are always less than the standard of 300 mg/L so as to substantially reduce the corrosion caused by increase of the chloride ions.

The present invention relates to a water-blending process equipment. It includes a shell body and a check valve connected on the shell body. The described shell body is made into the form of cylinder, and has an upper and lower cavity structure, on the partition board of upper and lower cavities 1-12 flow-passing hole channels with different hole diameters are circumferentially distributed on the lower cavity the water-passing pore channel communicated with water-feeding channel of the shell body is set, its end portion is equipped with bottom cover, a rotating body is mounted in the upper cavity, and the rotating body also is equipped with pore channels which are communicated with all the flow-passing pore channels on the described partition board and check valve set o the outlet of the shell body, and the upper end of the shell body is equipped with seal cover.

The embodiment of the invention discloses a sewage treatment system by adopting an improved activated sludge method. The sewage treatment system comprises a biochemical aeration tank, a settling tank and an aeration backflow system, wherein the aeration backflow system comprises a sludge tank and an aeration backflow device; the aeration backflow device is arranged in the sludge tank; and the aeration backflow device is provided with a diffusion pipe for simultaneously feeding air and sludge flow in the sludge tank into the biochemical aeration tank. The conventional sewage treatment system by adopting the activated sludge method is substantially improved; the sludge backflow system and the aeration system are integrated into a whole; on the basis that the aeration efficiency is not reduced, the engineering investment and the operating cost are effectively saved; moreover, the aeration backflow device of the treatment system adopts lifting design, so that the shortcomings that off-the-line is required when the conventional aeration head is overhauled, and the normal running of a clean pool is influenced are effectively overcome; and the sewage treatment system is easily and conveniently maintained.

The invention relates to a cam control device used for a reverse turning bed of a dust excluder, which comprises a riding wheel, a case body of the dust excluder and the reverse turning bed of the dust excluder, wherein, a cam is arranged in the case body of the dust excluder; a cam shaft is fixed on the cam; a shifting shaft is fixed on the lower end part of the reverse turning bed of the dust excluder; two ends of the shifting shaft are respectively embedded in a slotted hole on side surfaces of the case body; the upper end part of the reverse turning bed is provided with a blade; the blade is closely attached on the surface of the riding wheel while working. The invention controls the stability of the reverse turning bed of the dust excluder and the blade in working state by a cam mechanism, leads the reverse turning bed of the dust excluder to be quickly opened backwards by the rotation of the cam so as to expose a cleaning inspection area under the riding wheel with larger space, and prevents block of the riding wheel and deposition of splashed materials under the riding wheel. An operator can achieve clear and quick cleaning inspection only by simple operation, so that the standing time of the operator in a dangerous place can be reduced, and the safety factor for production is improved.

The invention discloses a drawer type one-piece switch cabinet, including a switch cabinet body and a drawer type mounting base. The switch cabinet body is provided with a plurality of mounting clamping grooves on three surfaces out of a door sheet. Any mounting clamping groove is internally correspondingly provided with a drawer type mounting base. Two sides of the bottom of the mounting clampinggroove are respectively provided with a sliding rail extending inward. The center in the switch cabinet body is correspondingly provided with a connecting frame. The connecting frame is correspondingly provided with a controller. The drawer type mounting base is provided with a protruding connecting guide column correspondingly connected with the connecting frame. The switch cabinet is simple instructure and convenient in use, and can rapidly complete mounting overhaul, and reduces labor intensity and improves working efficiency.

The invention discloses a DC switching power supply conversion circuit with step-down and step-up functions, belonging to the technical field of switching power supplies, comprising an input positiveelectrode, an input negative electrode, a step-up and step-down voltage control terminal, a PWM control terminal, resistors R1, R2 and R3, diodes D1, D2, D3, D4, D5, operational amplifiers N1A and 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 the input level of the step-up and step-down control terminal is low, the forward input terminal of the operational amplifier N1B can be pulled low through the diode D5, so that the circuit operates in the BUCK step-down mode; When the input level of the step-up and step-down control terminal is high, the reverse input terminal of the operational amplifier N1A can be pulled high through the diode D4, so that the circuit operates in a BOOST step-up state. The invention realizes the step-down and step-up functions, and has the advantages of good practicability, high economy and high efficiency.

The invention discloses a system for automatically monitoring the states of gate valves and Shutters. The system for automatically monitoring the states of the gate valves and the Shutters comprises amulti-path detection unit, a switch, a server and a display unit, the multi-path detection unit comprises a plurality of state acquisition modules and a lower computer; the state acquisition modulesare displacement detection units or voltage detection units, the lower computer comprises a single-chip microcomputer unit which is used for receiving information of the state acquisition modules, analyzing and processing the information, coding the information and sending the information to the switch; the switch is used for receiving coded information from the lower computer and sending the coded information to the server; the server is used for receiving data sent by the switch and storing the data in a local database; and the display unit is a webpage constructed by adopting a B/S structure and is used for reading the database and displaying the state information of each gate valve or Shutter. The system for automatically monitoring the states of the gate valves and the Shutters can monitor the states of the gate valves and the Shutters in real time and upload the state data to the server for storage and display so that workers can inquire the state data at any time, and the systemhas the advantages of being convenient to use, low in delay and high in safety.

The invention discloses a water dispenser convenient to install and an installation method thereof. The water dispenser convenient to install comprises an inner container provided with a heating body,a water outlet nozzle, a water pump, a shell, a top cover, a bottom cover and a control device. The control device is electrically connected with the heating body and the water pump; and the water inlet end of the inner container is communicated with the water holding piece on the shell. The water dispenser further comprises an inner support, the inner container and the water pump are fixed to the inner support, the inner support is fixed to the bottom of the top cover, the top cover and the bottom cover are connected with the top opening and the bottom opening of the shell respectively, andtherefore the inner support, the inner container, the water pump and the control device are all located in a space defined by the shell, the top cover and the bottom cover.

The invention relates to a three-level high-voltage high-power water-cooled frequency converter system, which comprises a water-cooled filter cabinet, an expandable bridge arm parallel frequency converter cabinet, a full digital regulating cabinet, a water-cooled excitation winding system cabinet and a water circulation heat dissipation system cabinet. The water-cooled filter cabinet, the expandable bridge arm parallel frequency converter cabinet, the full digital regulating cabinet, the water-cooled excitation winding system cabinet, and the water circulation heat dissipation system cabinet are mutually assembled from left to right to form a complete high-voltage high-power water-cooled frequency converter system. The water-cooled filter cabinet reduces input high-order harmonics for smoothing filtering and suppresses the harmonic disturbance caused by ultra-long-distance input in a parallel system of bridge legs. The water-cooled excitation winding system cabinet realizes single/double sets of three-phase 6-pulse silicon controlled rectifier excitation winding system functions through different assembly modes of a silicon controlled rectifier module. The scheme of the invention can effectively suppress the harmonic interference caused by the ultra-long-distance input of the parallel system of bridge legs, balance the input current of the bridge leg parallel frequency converter, effectively improve the space utilization, and further provide a more stable operation condition for a frequency converter based on a double-leg power unit system.

The invention discloses a novel armored metal-enclosed high-voltage switch device, and relates to the technical field of power facilities. The device comprises a cabinet body, a cabinet door, instruments, buttons, a handle and a supporting plate. A cabinet door and a supporting plate are arranged on the cabinet body. An instrument, a button and a handle are arranged on the cabinet door. The cabinet body is composed of a shell, supporting legs and a back plate, the supporting legs and the back plate are arranged on the shell, the supporting plate is composed of a fixing frame, a conductive rod,a fixing rod and a fixing block, the fixing frame is provided with the conductive rod and the fixing block, the fixing block is provided with the fixing rod, the back plate is composed of a connecting plate, a conductive plate and a cover plate, and the connecting plate is provided with the conductive plate. The high-voltage switch device is high in practicability and very convenient to use, fault electric arcs can be rapidly led into the ground, normal work of internal power equipment is kept, workers can conveniently install and maintain electronic device in the cabinet, the workload of theworkers is reduced, and the labor intensity of the workers is reduced.