58results about How to "Meet maintenance" patented technology

The invention discloses a vertical mobile isolating door for vacuum pipeline transport, which comprises a door chamber body wall arranged vertically, wherein the inside of the door chamber body wall is provided with a door chamber; the inside of the door chamber is provided with an isolating door body which is connected with a power driving device and a puller device respectively; the two lateral surfaces and the top surface of the isolating door body are provided with first continuous sealing rings; the two lateral surfaces of the isolating door body are provided with at least one moveable pulley respectively; the isolating door body can move up and down through the moveable pulleys; the lower part of the door chamber body wall is provided with a door hole; and the lower end surface of the isolating door body is a sealing surface. Under the condition that the vacuum pipeline transport is operated normally, the vertical mobile isolating door can meet the requirements on operation, maintenance and vacuum preservation of the vacuum pipeline without occupying effective clearance for a vehicle to drive or blocking a magnetic levitation track.

The invention discloses an adjustable split-type movable hanging basket for bridge maintenance and an operating method. The adjustable split-type movable hanging basket for the bridge maintenance comprises two supporting cross beams, a counterweight platform, a constructing operation platform, walking devices and a hanging frame. During using in actual engineering, the walking counterweight platform with a locking function is placed on the inner side of a bridge guardrail and is spaced by a distance from the guardrail so as to provide a greater torque for a counterweight block, the constructing operation platform on the other side is placed on the outer side of the guardrail in a cantilevered manner, and the guardrail serves as a stressing fulcrum for the two supporting cross beams; according to different bridge types and guardrail sizes, the supporting cross beams of the hanging basket are transversely stretched and retracted and the hanging frame thereof is vertically stretched and retracted so as to meet constructing operation requirements; the hanging basket is moved to a position where the maintenance is required by pushing the walking counterweight platform, and walking wheels are locked by opening bolts fixed to walking wheel hoods, so that the guardrail and a lower flange plate can be maintained and repaired on the operation platform.

The invention discloses a fracture-pore double-permeation medium dominant flow simulation device and an experimental method, and belongs to the technical field of geological engineering. The simulation device comprises a support, the support is detachably connected with a transparent container, the interior of the transparent container is filled with a fracture-pore double-permeation medium experiment model, the top of the transparent container is open, a leaching device is arranged above the transparent container, and the bottom of the transparent container is provided with a liquid rapid outflow port connected with a liquid collection device. The invention further discloses an experimental method of the simulation device and a manufacturing method of a fracture-pore double-permeation medium experiment model. The simulation device can highlight and enhance the dominant seepage experiment effect, experiment process is visualized by placing the manufactured fracture-pore double-permeation medium experiment model in the transparent container, and formation of dominant flow is observed at any time; material manufacturing, experiment process displaying and result analysis are modeled and informationalized, and requirement for a lab is lowered.

The invention provides an optical fiber mix-melting integrated tray capable of being intelligently upgraded. The optical fiber mix-melting integrated tray is not only suitable for a traditional optical fiber communication carrier tray but also suitable for the carrier tray capable of smoothly expanding intelligent optical fiber communication. The optical fiber mix-melting integrated tray can satisfy the use of a plurality of adapters and matched movable connectors, and includes a terminal tray, a melting tray, and a cover plate, wherein the terminal tray includes a melting tray supporting area, an adapter installation opening, rotating shaft bearers, and fiber-winding columns. The left and the right sides of the melting tray supporting area are respectively provided with upper convex bearing side walls. At least two groups of fiber-winding columns are respectively arranged in the melting tray supporting area. The two rotating shaft bearers are respectively arranged at two sides of the rear ends of the terminal tray and protrude upward. Gap structures are arranged at the oblique upward position inside the rotating shaft bears. Melting tray rotating shafts are arranged at the two sides of the rear ends of the melting tray. The melting tray rotating shafts are inserted in rotating shaft bearer installation holes under the corresponding position.

The invention discloses a continuous glass fiber reinforced polyurethane composite material walking board and a preparation method thereof. The walking board comprises a horizontally arranged flat plate and a plurality of supporting ribs arranged below the flat plate; the supporting ribs are arranged in the length direction of the flat plate; the flat plate is made of an upper reinforced felt, a lower reinforced felt and polyurethane resin filled between the upper reinforced felt and the lower reinforced felt; the supporting ribs are formed by side reinforced felts positioned on two sides andpolyurethane resin positioned between the two side reinforced felts; continuous glass fibers are arranged in the polyurethane resin of the flat plate and the supporting ribs in the length direction ofthe flat plate in a penetrating manner; the walking board is produced by adopting a pultrusion molding process. The walking board prepared by adopting a continuous glass fiber reinforced polyurethanecomposite material and the pultrusion molding process has the characteristics of light weight, capability of being randomly drilled without cracking, convenience in mounting, excellent durability, prolonged service life, free maintenance and the like.

The invention provides a combined universal gun turret suspender, and belongs to the technical field of military self-propelled gun turret repair equipment. The suspender comprises a combined ring and connecting slings of the combined ring; both ends of the slings are provided with shackles; the slings and the combined ring are connected through the shackles. The suspender is characterized in that the slings comprise an adjustable sling and a fixed sling; the adjustable sling comprises a sling chain, and a chain regulator capable of changing the length of the sling and arranged on the sling chain; and the fixed sling comprises a sling strap with fixed length. The suspender provided by the invention can be used in lifting disassembly of various types of gun turrets, can meet repair of various types of gun turrets, and has high usage rate and strong generality.

The invention discloses a tactical air navigation system external field beacon simulator, which consists of a frequency synthesizer module, a microwave modulation module and a display control and video processing module, wherein the frequency synthesizer module and the microwave modulation module finish generating and receiving five paths of radio frequency signals on the basis of microwave signalprocessing and a microstrip technology; the display control and video processing module takes a large-scale integrated circuit FPGA (Field Programmable Gate Array) and a high-speed MCU (Single Chip Microcomputer) as the center; and a bell shaped pulse and a PIN (Personal Identification Number) modulation technology are adopted to effectively improve frequency spectrum performance, and the full-frequency-band and full-channel coverage function of the tactical air navigation system external field beacon simulator is realized. A multi-channel parallel technology and the microwave modulation module with a microwave signal processing function are adopted to generate the simulation signals of a plurality of beacon stations, and a one-machine multiple-station function can be realized.

The invention relates to an agricultural unmanned sprayer. The agricultural unmanned sprayer comprises a protective sleeve, a movable rod, a gas spray device, a liquid medicine applicator body and outer threads, wherein a motor is mounted above the protective sleeve; a rotary shaft is mounted above the motor; fan blades are arranged at the two sides of the rotary shaft; the gas spray device is fixedly arranged on a fixed frame; a spray tube is arranged below the gas spray device; a liquid medicine box is mounted above the liquid medicine applicator body; a charge hole is fixedly formed in the upper portion of the liquid medicine box; the bottom end of a supporting frame is fixedly equipped with a supporting contact angle; an access door is mounted on the side surface of the protective cover; a stirring shaft is mounted below the drive motor; stirring blades are fixedly mounted on the stirring shaft; and a water pump is fixedly arranged inside the protective cover. The agricultural unmanned sprayer can realize liquid medicine spraying through a remote control device, so that labor power is greatly reduced; and moreover, lifting speed is great, so that practicability of the whole device is further improved, and therefore, use needs are met.

The invention belongs to the technical field of parts for railway freight wagons, in particular to a sealing structure for a bottom door of a hopper wagon, which solves the problems that the bottom door of the conventional railway freight wagon cannot meet requirements of sealing and safe transportation of materials with larger stack density and smaller particles. In the sealing structure, the lower end of a middle hopper plate of the hopper wagon is beveled downwards; the upper end of a flow ballast plate is beveled upwards; the beveled angles of the middle hopper plate and the flow ballast plate are welded together in a staggered manner; a box-shaped structure is formed between the welded parts of the flow ballast plate and the middle hopper plate; the beveled angle of the middle hopper plate and a bottom door wrapping plate are sealed firstly; the flow ballast plate and the bottom door wrapping plate are tightly attached to be sealed secondarily; a labyrinth-type sealing structure between the bottom door and a hopper discharging opening is formed by first seal and second seal; and flow guide plates are arranged at all corners of the hopper discharging opening formed by a side hopper plate, a hopper partition plate, the middle hopper plate and the bottom door wrapping plate. The sealing structure for the bottom door of the hopper wagon has the advantages that: the sealing effect of the discharging opening is enhanced; safe transportation of cargoes such as iron ores with larger stack density and smaller particles can be realized; and the long-time use stability of vehicles can be improved.

The invention discloses a method for drying a transformer, comprising: the high voltage side of the transformer is in short circuit, and the low voltage side is applied with lower voltage, so that the current of a winding is 120-125% of rated current, and the rated current is used until the temperature of the high voltage winding reaches 65 DEG C; when the temperature of the high voltage winding reaches 75 DEG C, 85% of rated current is used for heating; when the temperature of the high voltage winding is lower than or equal to 90 DEG C, the temperature of oil surface is less than or equal to 85 DEG C; and the operation is carried out until the insulating property of the winding is qualified. The method is used for solving the problem of resorting over-low insulation of the transformer by copper loss drying, and changes the phenomenon that a drying stove is used for heating the winding of the transformer and improving the insulation degree of the transformer in the prior art; furthermore, the process is simple, and the operation is easy no matter the winding of the transformer is heated by DC or AC.

The invention relates to a multi-functional high-altitude work platform, which includes a chassis, and its working principle is to put the chassis in a horizontal position according to the assembled support, start the motor A to adjust the telescopic column to adjust the workbench to a suitable position, and start the motor C to drive The reel rotates, the steel wire rope is used to lift the heavy object, and the motor B drives the worm gear mechanism to rotate to make the workbench face to a suitable working position. The present invention adopts the combination of telescopic column, reel and worm gear. It has the advantages of multiple functions, low cost, flexible operation and large operating range.

The invention discloses a power transmission line full-life monitoring platform based on an Internet of Things terminal and particularly relates to the technical field of power grids. The platform comprises the following construction steps of establishing a comprehensive microclimate disaster monitoring and early warning system based on ubiquitous power Internet of Things, and establishing a porcelain insulator degradation detection system by adopting an optical fiber sensing technology and electric field simulation analysis. By integrating Internet of Things communication, sensing, a power supply and the like, requirements of automatic energy taking, low power consumption and no maintenance can be met, the early warning capability and accuracy of new detection data can be met by introducing a decision-making tree artificial intelligence algorithm, and meanwhile, requirements of monitoring and early warning management on site and visualization can be met, so monitoring and early warning management efficiency is improved; the microclimate system performs real-time monitoring and early warning on power transmission line operation faults and microclimate disasters, and can establish an early warning model suitable for the provincial and municipal microclimate disasters, so the Internet of Things power transmission line monitoring platform is maintenance-free, low in manufacturingcost, intelligent, systematic and platform-based.

The invention discloses a foldable lamp module assembly comprising a plurality of light source modules, wherein each light source module comprises a fixed light source module and a plurality of movable light source modules connected to the fixed light source module. The plurality of light source modules are connected through a plurality of rotating assemblies and each rotating assembly comprises arotating shaft sleeve fixedly disposed on the light source module and a rotating shaft inserted in the rotating shaft sleeve. The rotating shaft sleeve comprises an upper rotating shaft sleeve and alower rotating shaft sleeve, the upper rotating shaft sleeve and the lower rotating shaft sleeve are respectively fixedly disposed between the adjacent light source modules, the rotating shaft is provided with protruding strips, and a plurality of grooves matched with the protruding strips and used for determining the rotating angle of the light source modules. The light source modules of the foldable lamp module assembly can rotate to achieve multi-angle illumination. In addition, the angle between the light source modules is adjusted by the rotating assemblies more flexibly, more conveniently and more reliably, and the use is more convenient.

The invention discloses a height-adjustable motorbike rear brake rod adjustment auxiliary device. The height-adjustable motorbike rear brake rod adjustment auxiliary device comprises a main sleeve body, a thread sleeve, a rotary rod, a rotary rod spring, positioning pincers, lifting springs, sliding springs and a lifting base. A box body is cylindrical, the thread sleeve is installed at the frontend of the main sleeve body, the rotary rod is installed in the main sleeve body and connected with the thread sleeve, the rotary rod is sleeved with the rotary rod spring, and the rotary rod spring is connected with the tail end of the main sleeve body. The positioning pincers are installed on the outer side of the main sleeve body, the lifting springs are installed on the pincers, the sliding springs are installed at the tail ends of the positioning pincers and connected with the main sleeve body, and the lifting base is installed on the main sleeve body. The height-adjustable motorbike rearbrake rod adjustment auxiliary device effectively replaces the mode that manual adjustment and maintenance are adopted when a motorbike rear brake is adjusted and maintained, the problems of inaccuracy and non-quickness of adjustment are avoided, complexity and difficulty of one man operation are avoided, the operation efficiency is promoted, motorbikes at different heights can be supported for adjustment, and the adjustment stability and the operation convenience are further improved.

The invention discloses an electric power engineering rush-repair combined operation vehicle. The problems that an existing operation vehicle is stiff in movement adjustment and low in electric powerrush-repair efficiency are solved. According to the following scheme, the electric power engineering rush-repair combined operation vehicle comprises a carriage bottom plate. Four electric telescopicrods which are equidistantly distributed are fixedly connected to one side of the outer wall of the top of the carriage bottom plate, a same fixed table is fixedly connected to one ends of extension rods of the four electric telescopic rods, a rotary disc is arranged in the center of the outer wall of the top of the fixing table, a fixing frame is fixedly connected to the outer wall of the top ofthe rotary disc, a universal adjusting ball head is arranged on the inner wall of the bottom of the fixing frame, and a limiting groove is formed in the outer wall of one side of the fixing frame. A telegraph pole is matched with a sliding block and a sliding rail at the top of the adjusting frame, so that an operation high platform rotates around the telegraph pole, the repairing range can be adjusted more flexibly, and workers are prevented from going up and down in the repairing process to adjust the direction in a matched mode.

The invention discloses a precision synchronous multi-spindle drill bit. The precision synchronous multi-spindle drill bit comprises an L-shaped base, two slide rail assemblies are arranged on the horizontal part of the L-shaped base in parallel in the length direction, a sliding support mechanism capable of sliding along the two slide rail assemblies is arranged on the two slide rail assemblies,a hydraulic drive mechanism for driving the sliding support mechanism to slide along the two slide rail assemblies is arranged on the outer side of the vertical part of the L-shaped base, the drivingpart of the hydraulic driving mechanism penetrates through the vertical part of the L-shaped base and is connected with the sliding support mechanism, and the sliding support mechanism is provided with a drill bit assembly for synchronously drilling a porous pipe and a power driving mechanism for driving the drill bit assembly to work. The multi-spindle drill bit has simple structure and convenient maintenance, can accurately locate drilling positions, ensures the synchronization of the drilling process and the working stability and high output rate of the whole drill bit in an idler gear transmission mode, and can meet requirements of products on functions and quality.

The invention relates to a transformer substation combined electric appliance power distribution device, and particularly relates to a 220 kV bus lengthened type single-row GIS equipment. The 220 kV bus lengthened type single-row GIS equipment is structurally characterized in that the line-side voltage transformers of two groups of buses are upwardly arranged above a line-side outgoing branch bus.The group B of buses is arranged below the line-side voltage transformer of its own group and the line-side voltage transformer of the group A of buses. Between the current transformer of the group Bof buses and the circuit breaker of the group B of buses, a long sleeve internally provided with a branch bus is arranged to connect the current transformer with the circuit breaker. The group A of buses is arranged to be tightly attached to the circuit breaker of the group A of buses. The group A of buses and the line outgoing equipment of the group B of buses are located in the lower space of the long sleeve connected between the current transformer of the group B of buses and the circuit breaker of the group B of buses. In this way, the group A of buses is equal to the group B of buses inlength. The group A of buses and the group B of buses are parallel and are in the lower-order arrangement of the same plane. The 220 kV bus lengthened type single-row GIS equipment is simple and convenient in construction, and the overall layout of the power distribution device is not changed at all. Meanwhile, the double-layer wire outlet is not needed and the construction cost is effectively reduced. The line wiring is clear and simple, and the operation reliability is improved. Meanwhile, the operation and maintenance difficulty is reduced.

The invention discloses a multi-protocol switching method and device based on data transmission, and is applied to the technical field of automobile data transmission, and the method comprises the steps that an application layer is connected with an automobile and reads vehicle information of the automobile, and a function instruction is obtained; the application layer sends function instructions to the system layer, wherein each function instruction corresponds to a first function protocol in the application layer; the system layer receives the function instruction and analyzes the function instruction to obtain any one of a tire pressure monitoring instruction, an automobile fault scanning instruction, an automobile diagnosis instruction, a data transmission instruction, an information acquisition instruction and an ECU ID reading instruction; and the system layer switches a second function protocol contained in the system layer according to a first function protocol corresponding to the function instruction, so that the system layer and the application layer transmit data under the same type of protocol. According to the invention, when data transmission is carried out on the automobile, transmission protocols can be switched randomly, so that detection of different functions can be carried out.

The invention relates to a multifunctional device for automobile maintenance and a using method thereof, and belongs to the technical field of automobile preservation and maintenance. The technical scheme comprises the steps that an air inlet (20) is connected to a barometer (2), a first two-position three-way valve (3) and an air pump (4) in turn, and an air outlet (19) is sequentially connectedto a second two-position three-way valve (7), a vacuum indicator (6), an air filter (5) and the air pump (4); the lower portion of a closed container (1) is provided with a lower common tube (8), andthe lower common tube (8) and a joint (9) of the closed container (1) are connected; the upper portion of the closed container (1) is provided with an upper common pipe (16), and the upper common pipe(16) is connected to a filter (17) outside the closed container. The device can replace a plurality of devices in the prior art, and is particularly suitable for use in an automobile repair shop, a 4S shop, a maintenance center and the like. The device simultaneously meets the needs of various automobile maintenance and preservation, has reasonable structure, low costs, convenient use and convenient operation, and is safe and sanitary.

The invention relates to an embedded digital on-duty recording device for a picketing helmet. The embedded digital on-duty recording device comprises an arc-shaped casing matched with an inner wall of the front end of a picketing helmet body and a circuit device fixed in the casing. The circuit device consists of an audio / video acquiring device and an intercom system. The casing is opened and is divided into a plurality of cavities, and the periphery of each cavity is provided with a vertical edge abutting against the inner wall of the helmet body. A miniature microphone, a universal serial bus (USB) data interface, a system power switch and an intercom control switch of the intercom system are fixed on the vertical edge located at the lower portion of the casing. A lens mount rightly facing a helmet body insignia gap is fixed in the cavity located at the center of the casing, and a miniature camera is fixed on the lens mount. The outside of the left side of the casing is fixedly connected with earphones and the microphone of the intercom system. In addition, the casing is provided with a plurality of installing holes in matched connection with suspension system positioning parts inside the helmet body. The embedded digital on-duty recording device can be widely used for campaign-style law enforcement of on-duty persons and has functions including synchronous acquisition of audio / video data in a field, collaborative talkback and the like.

The invention discloses a combined energy system for underwater power supply. The combined energy system comprises a magnesium seawater fuel cell, a control unit, a primary lithium battery, a voltageconverter, a deep sea lander, a boosted circuit, a buck circuit, a charger, a secondary lithium battery, a protection circuit and a deep sea submersible. In the working state of the system, on one hand, the primary lithium battery and the magnesium seawater fuel cell work cooperatively to provide stable electric energy for the deep sea lander; on the other hand, the primary lithium battery supplies power to the deep sea submersible; meanwhile, the secondary lithium battery is charged; enough electric energy required by long-time detection operation of the deep sea submersible is ensured; therefore, the system can meet the requirements of long-time detection operation of deep-sea equipment, has the advantages of being stable in work, free of maintenance, low in cost, high in reliability andthe like, achieves stable power supply of deep-sea submersible electric equipment, and meanwhile solves the problem that power loss is large due to the fact that an underwater mooring line is long.

The invention discloses a distributed energy storage system and a control method thereof.The distributed energy storage system comprises a plurality of energy storage cabinets and independently arranged heat exchange devices, each energy storage cabinet is internally provided with an energy storage device and a heat exchange channel, and each heat exchange device is provided with an interface component; the heat exchange channels of all the energy storage cabinets are connected into the interface component in parallel, and the heat exchange device provides heat exchange media for all the heat exchange channels through the interface component. The heat exchange device in the distributed energy storage system is independently arranged, so that structural design, transportation and the like of the heat exchange device and the energy storage cabinet do not interfere with each other, and the performance of the heat exchange device and the energy storage cabinet can be guaranteed.

The present invention discloses a photovoltaic energy storage BMS system. A lithium iron phosphate battery pack is connected with detection units by voltage sampling circuits and temperature sampling circuits; a BDI batter display interface module is connected with the detection units by photo coupler isolation communication interfaces; an anode of the BDI batter display interface module is connected with an anode of the lithium iron phosphate battery pack; the grounding end of the BDI batter display interface module is connected with a cathode of the lithium iron phosphate battery pack; the BDI batter display interface module is connected with a current detection circuit; the cathode of the lithium iron phosphate battery pack is connected with a cathode of the charge-discharge end of a photovoltaic cell panel by the current detection circuit; the BDI battery display interface module is connected with an anode of the charge-discharge end of the photovoltaic cell panel by a charge-discharge control circuit; the BDI battery display interface module is connected with a PC machine by an EMS storage management module; the BDI battery display interface module is connected with an LCD liquid crystal screen; and the BDI battery display interface module is also connected with a start-stop switch. The photovoltaic energy storage BMS system has the beneficial effects that the structure is simple; and the requirement for managing and maintaining a large number of batteries can be met.

The invention belongs to the technical field of automatic transportation lines and particularly relates to an automatic horizontal moving mechanism applied to a heavy load device in an automatic production line. The automatic horizontal moving mechanism comprises a support, a door carrying trolley which is arranged on the support and can be fixedly connected with an equipment movable door, a guiding structure arranged between the support and the door carrying trolley, and a driving mechanism which is arranged on the support and used for driving the trolley to move back and forth along the guiding structure. The door carrying trolley is further provided with a stable supporting part which extends to the guiding structure so as to assist the door carrying trolley in stably moving in the guiding structure. By means of the cooperation of the door carrying trolley and the support, the driving mechanism is used for driving the door carrying trolley to move, horizontal moving door opening oflarge heavy load equipment is achieved, a manual opening manner is replaced, manpower resources are saved, and in addition, the risk of safety accident happening is lowered.

The invention belongs to the technical field of intelligent device control, and provides a method, device and apparatus for controlling a USB debugging mode switch, and a storage medium. The method comprises the steps that a target device receives a switch instruction sent by a server, and the USB debugging function of the target device is in a hidden state; the legality of the switch instructionis verified according to a preset verification rule; and when the switch instruction is legal, an instruction parameter is obtained from the switch instruction. According to the invention, the USB debugging function of the terminal device is in a hidden state; a USB debugging mode can be effectively prevented from being completely exposed to a terminal user; the problem that an existing USB debugging mode of the intelligent device is completely controlled by a user is solved, students are effectively prevented from refreshing the Internet and installing third-party applications by themselves,the personal safety of the students is guaranteed, the fairness of the learning environment is guaranteed, and finally the special requirements during maintenance and development are met.

The invention relates to an anti-demounting nut, and belongs to the field of fasteners. The anti-demounting nut comprises a nut matrix and a screw cap. An internal thread and an external thread identical in thread turning direction are machined in the inner wall and the outer wall of the nut matrix correspondingly. The end of the locking end of the nut matrix extends outwards to form an annular limiting table, and a wrench groove is machined in the outer wall of the nut matrix. An internal thread matched with the external thread on the outer wall of the nut matrix is machined on the inner wallof the screw cap, and a polygon prism face is arranged on the outer wall of the screw cap. The screw cap is screwed into the outer wall of the nut matrix in a threaded manner until the front end faceof the screw cap abuts against the annular limiting table at the end of the locking end of the nut matrix. The tightness of threaded connection of the screw cap and the nut matrix is smaller than that of threaded connection of the nut matrix and a bolt. The anti-demounting nut is reliable in anti-demounting effect, and meets the special demounting needs of maintenance, equipment replacement and the like at the same time.

The invention relates to a road multi-functional integrated maintenance machine. The road multi-functional integrated maintenance machine comprises a gasoline engine, a high-pressure pump, a water inlet filter, a high-pressure water pipe, a gun rod and a gun head, wherein the gasoline engine is arranged on a car body, the water inlet filter is arranged at the front part of the car body, the water inlet filter is connected with the high-pressure pump through a water inlet pipeline, the gasoline engine is arranged at the rear part of the car body for supplying power to the high-pressure pump, the high-pressure water pipe is connected with the high-pressure pump, and the end part of the high-pressure water pipe is connected with the gun rod and the gun head. Compared with the prior art, the road multi-functional integrated maintenance machine disclosed by the invention has the advantages that the assembling is compact, the structure is reasonable, the use is convenient, and the like.

The invention relates to an asphalt hot material mixing machine which comprises a mixing bucket (1) with an opening (11), and a rack (2). The asphalt hot material mixing machine is characterized by also comprising a heater (3), a power device (4) and a transmission device, wherein the mixing bucket (1) is arranged on bearing rollers (6) on the rack (2); the heater (3) is arranged below the mixing bucket (1); the mixing bucket (1) is connected with the power device (4) and is driven to rotate through the transmission device; the mixing bucket (1) is internally provided with continuous spiral stirring blades (10). The asphalt hot material mixing machine is reasonable in structure, simple to operate, convenient to use, high in practicability, and high in effect, saves energy, is environmentally friendly, and wide in application.

The invention discloses a brick watering maintenance device for building construction. The brick watering maintenance device comprises a spraying and watering cannon, a mounting bracket for supporting and mounting the spraying and watering cannon and a spraying auxiliary water absorption device mounted above the spraying and watering cannon and performing auxiliary maintenance on bricks, wherein a water spraying end of the spraying and watering cannon performs spraying maintenance on the bricks, the spraying auxiliary water absorption device sprays air to the sprayed bricks, the bricks sprayed with water are made to absorb moisture by the air, an auxiliary supporting device is arranged on the mounting bracket and is used for assisting in supporting the stacked bricks, and the spraying auxiliary water absorption device comprises an air spraying pipe capable of spraying the air in different directions and an air spraying hose connected between the air spraying pipe and air blower equipment. By means of the brick watering maintenance device for the building construction, the water absorption speed of the bricks can be increased, the quality of the bricks can be improved, meanwhile, dust and sundries on the bricks can be cleaned, and the bricks are kept clean.