59results about How to "Satisfy the working environment" patented technology

The invention discloses an electronic expansion valve, which comprises an electrical control part and a mechanical part. The electrical control part comprises a bus signal reception/transmission module, a central processing module and a stepper motor driving module; wherein the bus signal reception/transmission module is used for receiving a bus control signal and transmitting the bus control signal to the central processing module; the central processing module is used for extracting valve opening information included in the bus control signal, generating a corresponding pulse control signalin combination with current position information of a stepper motor read from a data storage module, and outputting the pulse control signal to the stepper motor driving module; and the stepper motordriving module is used for driving the stepper motor to adjust the valve opening according to the pulse control signal. The invention also discloses a stepper motor and a reversing valve. The number of drive wires directly connected with a main control board can be reduced, the structure of the main control board can be simplified, and the manufacturing cost can be saved.

The invention relates to a network building method and device, a network connecting method and device, a router and a smart home appliance, provides a network building method and network building device for a router, a network connecting method and network connecting device for a smart home appliance, a router and a smart home appliance, wherein the network building method for the router comprises: recording the identification information of a networked appliance and generating a home appliance list; monitoring the networked states of the appliances in the home appliance list; sending distribution network information, after it is detected that the networked home appliances have been disconnected for a first time length, to inform offline appliances to join the network. The technical scheme of the invention can make the abnormal offline home appliances complete re-distribution network, or make the home appliance automatically get access to the new wireless network after the password of the wireless network is changed, realizes the automation of the appliance networking, and eliminates the cumbersome household appliances networking operation.

The invention discloses a crawler crane moment limiting system, which comprises a sensor part, a display part and a main control box which is connected between the sensor part and the display part. The main control box has a modular independent board structure. A main controller is arranged in the main control box; and a crane moment processing system is arranged in the main controller. The crane moment processing system can acquire an accurate limited moment of a crane and a protection signal according to a mathematical model and a load curve of the crane. Peripheral modules can be freely expanded by using the main controller as a core. Therefore, the aims of strong extensibility, flexible use, convenient installation and maintenance, good universality, high reliability and more accurate and safer control are fulfilled.

The present invention provides a desk with which flexibility of a change in the position of an optional member with respect to a base is increased, and by which the position of an optional member with respect to the base can be changed easily and accurately in accordance with the posture of a top board with respect to the base. A desk includes: a base extending in a predetermined direction; a top board capable of selecting a plurality of postures with respect to the base; an option supporting member supported so as to be movable along the base in accordance with the posture of the top board; and a panel system and a task light supported by the option supporting member.

A rack counterweight operation-type window-cleaning machine is provided, which belongs to the field of cleaning equipment. The machine comprises a portable window cleaner, a travelling wheel mechanism, an anti-turning device, a rail climbing device, a drag wire rope, a first guide rail, a rack, a guide pulley, a counterweight device and a second guide rail. The machine is characterized in that the weight of the counterweight device is designed to be equal to the self-weight of the portable window cleaner; and the rail climbing device engages with the rack to drive a pair of counterweights to reciprocate along the first and the second guide rails. The driving force is reduced according to the action of gravity of the counterweights, so that the window-cleaning machine can climb with small frictional force. The invention overcomes the climbing problem in the prior art and realizes energy conservation and safety improvement.

The invention relates to the technical field of ice drilling devices, in particular to a movable vertical-lifting ice drilling device and method. A moving platform of the ice drilling device is connected to the rear portion of a moving vehicle in a lifting mode, a drilling rod is vertically mounted on the moving platform, and the moving platform can drive the drilling rod to move vertically when rising and falling. A drilling rod transmission mechanism is mounted on the moving platform. An output shaft of the moving vehicle is connected with the drilling rod through the drilling rod transmission mechanism. The drilling rod transmission mechanism is used for converting power output by the moving vehicle into potential energy and then converting the potential energy into kinetic energy againunder driving of power of the output shaft, so that the power is provided for rotating of the drilling rod, a drilling bit is driven to rotate, and accordingly efficient ice drilling and perforatingoperation is achieved. According to the movable vertical-lifting ice drilling device and method, it can be guaranteed that the drilling precision is high, the device is moved conveniently, full-automatic operation can be achieved, vertical rising and falling of the drilling rod can be guaranteed strictly, and accordingly the problems that the drilling rod is bent, consequently, the ice drilling efficiency is low and the requirement for the depth is not met are avoided.

The invention discloses an air source system of a water-cooling air compressor for vehicles. The air source system comprises a double-crank inner support transmission structure, a controller and a water-cooling system, wherein the double-crank inner supporting transmission structure is driven by a motor, an elastic coupler and a crankshaft, cranks on the two sides of the crankshaft drive a low-pressure cylinder piston assembly and a high-pressure cylinder piston assembly to reciprocate up and down, and the gas compression process is completed; the controller is fixed on the motor, a labyrinthtype cooling water channel is arranged in the controller, and the controller shares the working state of an air supply system and feeds back fault information in real time; and the water cooling system is supplied with water by a whole vehicle water pump system, enters a crankcase water tank after passing through the labyrinth type cooling water channel in the controller, then enters a cylinder cover after passing through a water tank in a piston cylinder, returns to the piston cylinder and a crankcase again after passing through a water channel in an inner cavity of the cylinder cover, and isfinally discharged and converged into a whole vehicle circulating water channel. The air source system has the advantages of being high in compression efficiency, small in vibration, low in noise, long in service life, clean in air source, efficient, energy-saving, compact in structure, small in size, convenient to install and arrange and the like.

The present invention discloses a maximum gain direction-adjustable monopole antenna, which comprises an oscillator, an oscillator protection cover, a base and an insulating medium. The oscillator is embedded at the center of the oscillator protection cover. The oscillator and the oscillator protection cover define the center frequency point and the bandwidth of the antenna during operation. The antenna also comprises a reflecting plate and a reflecting plate angle adjusting device. The lower part of the reflecting plate angle adjusting device is connected with the base. The upper part of the reflecting plate angle adjusting device is connected with the reflecting plate. The reflecting plate is in the form of a folding type reflecting plate. The folding angel of the reflecting plate can be changed by the reflecting plate angle adjusting device, so that the maximum gain direction of the monopole antenna is changed. According to the technical scheme of the invention, the angle of the maximum gain direction of the antenna can be conveniently and quickly adjusted. At the same time, the impedance bandwidth of the antenna is ensured to be unchanged.

The invention discloses a nano-ceramic paper pulp abrasive disc and a production method thereof. Raw material components of the nano-ceramic paper pulp abrasive disc include nanometer corundum and nanometer fused alumina zirconia, and the disadvantages of poor toughness and low corrosion resistance are solved, the service life of pulp abrasive discs is prolonged, and production of high-end nonmagnetic paper pulp is realized. The production method of the nano-ceramic pulp abrasive disc comprises the following steps: (1) preparing the raw materials; (2) carrying out pressure forming; (3) carrying out isostatic compaction; (4) machining a blank; (5) carrying out high temperature sintering; and (6) carrying out abrasive machining. The method solves the technical problem of difficult demolding of special-shaped paper pulp abrasive discs, and opens up a new way for production of special-shaped ceramics.

The invention provides a water-cooled combustor and a condensing boiler. The water-cooled combustor comprises a tubular body and fluid boxes connected to the two ends of the tubular body, wherein thetubular body comprises an inner barrel and a plurality of outer pipes, the inner barrel extends along the central axis and is provided with a mixing cavity, a plurality of rows of open holes are formed in the inner barrel, the multiple outer pipes are arranged in parallel around the outer side of the inner barrel, the length directions of the multiple outer pipes are consistent with the directionof the central axis of the inner barrel, each fluid box is provided with a fluid inlet and a fluid outlet, and the fluid inlets and the fluid outlets are correspondingly communicated with the multipleouter pipes. The combustor is not prone to blockage, and good in heat exchange effect, and can reduce the content of nitric oxide in flue gas.

The invention discloses an ironing and flattening device for a sheet-shaped flexible material, and the device comprises an outer frame, a big conveyor belt mechanism and a small conveyor belt mechanism, wherein the big conveyor belt mechanism and the small conveyor belt mechanism are installed inside the outer frame. The large conveyor belt mechanism comprises a big conveyor belt driving roller, abig conveyor belt driven roller, a big tension roller and a big conveyor belt, wherein the big conveyor belt driving roller, the big conveyor belt driven roller, the big tension roller and the big conveyor belt are fixed between the left and right baffle plates. The small conveyor belt mechanism includes a small conveyor belt driving roller, a small conveyor driven roller, a small tension rollerand a small conveyor belt, wherein the small conveyor belt driving roller, the small conveyor driven roller, the small tension roller and the small conveyor belt are fixed between the left and right baffle plates. The small conveyor mechanism abuts against the big conveyor belt from one side, so that the large conveyor belt mechanism is shaped like V, and the big conveyor belt and the small conveyor belt form a common opposite plane with an inlet wedge angle therebetween, and an upper heating plate is disposed behind the small conveyor belt at the inlet wedge angle. A lower heating plate is disposed behind the small conveyor belt between the small conveyor belt driven roller and the small tension roller, thereby realizing the synchronous ironing operation. The device can realize the rapidand efficient drying, ironing and flattening operations of the sheet-like flexible material.

A clamping mechanism for clamping and replacing a diaphragm adopts a split type structural design and comprises a driving section clamping mechanism, a driven section clamping mechanism and a diaphragm replacing mechanism which are sequentially designed from left to right, and the diaphragm replacing mechanism is located between the driving section clamping mechanism and the driven section clamping mechanism. The driving section clamping mechanism can achieve axial feeding of pipelines and can also achieve axial displacement of the whole supporting seat, the driven section clamping mechanism achieves axial position fixing of butt-joint pipelines, and the diaphragm replacing mechanism achieves clamping and replacing of diaphragms between two pipelines. Reliable sealing and clamping among the driving section, the diaphragm and the driven section can be achieved through cooperation of the driving section, the diaphragm and the driven section, and safety and reliability of the whole test pipeline are guaranteed. On the driving form of each degree of freedom, the design which is simple in structure and convenient to install and debug is adopted, effective adjustment of displacement between the pipeline and the diaphragm is guaranteed, and the space utilization rate can be fully improved. According to the design of the structural form, all the mechanisms are relatively independent, interference among the mechanisms is small, the structure is simple, operation is convenient, and efficiency is high.

The invention discloses a movable integrated modular mechanism reclaimed sand device which comprises a movable wheel type container, wherein the movable wheel type container is a container installed on a platform trailer; a crusher, a belt elevator and a roller sand making machine are installed in the movable wheel type container; a collecting hopper is installed at the front end of the container,the crusher is installed under a discharging port of the collecting hopper, and discharged materials of the crusher are conveyed into the roller sand making machine through the belt elevator. The device disclosed by the invention can realize recycling of urban solid wastes, tailing wastes and the like. The equipment is integrated, modularized, light in weight, intelligent, convenient to move andsmall in size. Entrance and exit are flexible, the construction efficiency is high, the use cost is low, the energy consumption is low, the water consumption is low, and the emission is low. Various working environments can be met, one device has multiple functions, and the resource utilization rate of materials is increased. Various harmful heavy metals can be effectively removed. The device hasthe advantages of low noise, less raise dust and the like, and has small influence on surrounding environment.

The invention discloses a brush type sealing structure allowing a rotor to reverse. The brush type sealing structure comprises a stator, a brush type sealing part, pawls, spiral springs and the rotor,wherein the stator is annular, the inner circumference of the stator is sawtooth, and the brush type sealing part is arranged in the stator in a clearance fit manner; the brush type sealing part comprises a front baffle, a connecting area, a rear baffle and a brush wire strand, the front baffle, the connecting area, the rear baffle and the brush wire strand are integrally connected, the brush wire strand is clamped between the front baffle and the rear baffle, one end of the brush wire strand is fixedly connected with the connecting area, and the other end of the brush wire strand is obliquely arranged in the rotation direction of the rotor; arc grooves are uniformly formed in the periphery of the connecting area, one ends of the pawls are arranged in the arc grooves through pawl shafts,and the other ends of the pawls are inserted into tooth grooves of the inner circumference of the stator in coordination manner; and the spiral springs are arranged between the pawls and the brush type sealing part in a compression manner. In the case of rotor reversal, the brush type sealing structure can still guarantee that the brush wire strand is in a perfect condition, the service life of brush wires is prolonged, and the use cost of the brush wires is reduced.

The invention discloses a laser cladding device for repairing a main drive runway of a shield tunneling machine. The laser cladding device comprises a working platform and a cushion block. The cushionblock is fixed to one corner of the working platform. A first electric slide table is fixedly arranged in the middle of the top end of the working platform. An L-shaped fixed frame is fixedly arranged at the top end of a slider of the first electric slide table. A laser cladding head is fixedly arranged on the top of the front face of the L-shaped fixed frame. The positions, close to the two corners of the front face, of the top end of the working platform are each fixedly provided with a diameter adjusting mechanism. Each diameter adjusting mechanism comprises a second electric slide table and a supporting roller. When laser cladding is conducted on the main drive runway of the shield tunneling machine, a grinding wheel is driven by a second motor to rotate to grind the surface of the main drive runway of the shield tunneling machine, an obtained laser cladding coating meets the requirement for the working environment of the main drive runway of the shield tunneling machine, the performance of the main drive runway of the shield tunneling machine is improved, the service life of the main drive runway of the shield tunneling machine is prolonged, laser cladding and grinding are conducted at the same time, and the repairing efficiency can be effectively improved.

The invention relates to a composite material thin shell plane folding and unfolding device and folding and unfolding method. The composite material thin shell plane folding and unfolding device comprises a composite material thin shell, a folding and unfolding mechanism and a tail end supporting arm, wherein the folding and unfolding mechanism is mounted on one side edge of the composite material thin shell, and the tail end supporting arm is mounted on the opposite side edge of the mounting position of the composite material thin shell folding and unfolding mechanism. The composite material thin shell comprises a structural layer and a connecting layer; the structural layer is composed of at least two sections of arc bistable composite material tape structures which are arranged in parallel; and the connecting layer is a flexible film or fabric which is bonded on the surface of one side or two sides of the structural layer. The folding and unfolding mechanism comprises side plates, a head end supporting arm, a first limiting rod and a second limiting rod. The tail end supporting arm is formed by sequentially connecting at least two sections of outer telescopic rods, and the outer telescopic rods are installed on the convex face fixed to the tail end of the composite material thin shell. The device can be kept stable in an unfolded state and a folded state, can be repeatedly folded and unfolded, is high in space utilization rate, simple in structure, large in specific strength and specific modulus, resistant to high temperature and corrosion and capable of adapting to complex and changeable working environments.