108results about How to "Avoid falling hazards" patented technology

The invention provides a robot interface structure capable of rapidly changing an end-effecter. The robot interface structure comprises a robot tail end interface and an effecter end interface, wherein the robot tail end interface comprises a driving device, a transmission device, a first locking mechanism and a first electrical interface; the effecter end interface comprises a second locking mechanism and a second electrical interface; the driving device can drive the first locking mechanism through the transmission device, so that at first, the first locking mechanism and the second lockingmechanism form mechanical locking, and then, the first electrical interface and the second electrical interface form electrical connection. The robot interface structure does not need a complicated hardware control system, only needs a motor to finish mechanical locking and electrical connection, ensures light weight and high reliability, and also can meet the requirement that an astronaut robot can rapidly and reliably change a corresponding end-effecter within a short period of time.

The invention discloses a sintered shale micropore honeycomb glaze building block and a manufacturing method thereof. The manufacturing method includes: stirring and mixing raw materials comprising shale, building spoil, sludge, rubbish, straw (such as tree branches, leaves, rotten wood or tree), coal gangue, water, and the like to obtain a viscous mixture, extruding and forming to obtain a workblank of the building block, coating at least one side surface of the workblank of the building block with a clay layer and a glaze layer, sintering and forming. The building brick is manufactured by the method. The building block and the manufacturing method have advantages of low cost, short production period, low energy consumption, high building block strength, light unit weight, low heat conductivity coefficient, and good energy-conservation, heat insulation, sound insulation effects. The building block is provided with the glaze layer and can be directly used as a wall surface, thus shortening the building period, reducing cement consumption, reducing environment pollution, and avoiding hazards of dropping of external tiles. In addition, the building block and the manufacturing method achieve processing of the agriculture straw, the coal gangue, the rubbish, and other waste and turn the waste into things of value, thus achieving effects of energy conservation and environmental protection.

The invention relates to a glass cleaning robot and a control method thereof. The device comprises an adsorption device and a traveling device, which are fixed on a bracket, wherein the adsorption device is composed of a suction disc, an exhausting pump and an exhausting pipe; the suction disc is a soft rubber suction disc; the exhausting pump is connected with the suction disc through the exhausting pipe; a main pipeline of the exhausting pipe is connected with a check valve; a branch pipeline is connected with a deflation valve; the traveling device comprises a caterpillar band composed of a plurality of caterpillar band sections; and each caterpillar band section is composed of an outer-layer fabric layer, a middle-layer soft material layer and an inner-layer hard material layer. The glass cleaning robot and the control method thereof, provided by the invention, have the beneficial effects that the stability and maneuverability of the glass washing robot on the surface of wet and smooth glass can be improved and the robot does not fall off accidently; and the power consumption is reduced and a long-time powerless adsorption capability is guaranteed when power is off.

The invention provides a window cleaning robot with flexible turning capacity. The window cleaning robot comprises a robot body, wherein the robot body comprises a casing and a lifting handle arrangedon the outer side of the top of the casing, wherein a mounting frame is arranged in the center of the inner side of the bottom of the casing; a cavity is formed by the mounting frame and the bottom of the casing. Traveling wheels are adopted to replace the traditional continuous track type moving structure, so that production cost, size and occupation space are reduced; four wiping mechanisms arearranged at the bottom of the robot and can wipe glass in front-rear and left-right manner simultaneously, the wiping range is wide, and the wiping efficiency is high; angular acceleration sensors are arranged in the wiping mechanisms, when the wiping mechanisms touch glass borders, the angular acceleration sensors transmit signals to a controller, the controller controls a driver to enable a driving wheel to change direction, accordingly, the traveling direction of the robot body is changed, the glass borders are avoided flexibly, and the robot cannot be stuck on the glass border.

The invention provides a portable pipe welding robot which comprises two car bodies with opposite round pipe outer walls. The bottoms of the car bodies are provided with rollers, the rollers are magnetically connected with round pipes, double-speed chains are connected to the two sides of the car bodies, the double-speed chains of the car bodies are connected through tightening structures, weldingassemblies are arranged on the car bodies, each welding assembly comprises a horizontal sliding block and a longitudinal sliding block, the longitudinal sliding blocks are provided with clamps, welding guns are arranged in the clamps, the car bodies are further provided with laser weld bead trackers, and the laser weld bead trackers, the welding assemblies and the car bodies are all controlled remotely. The portable pipe welding robot has the beneficial effects of reasonable design, the simple structure, safety, reliability and capacity of achieving automatic welding of the round pipes.

The invention provides a master-slave magnetic type window wiping robot, and belongs to the field of automatic sanitary ware. The robot is composed of a to-be-wiped window, a driving brush, a driven brush and an anti-slip off device, wherein the driving brush is adsorbed on the surface of the to-be-wiped window, the driven brush is adsorbed on the surface of the other side of the to-be-wiped window, and the anti-slip off device passes through an outer edge of the to-be-wiped window and is connected with the driving brush and the driven brush. The master-slave magnetic type window wiping robothas the advantages that the driving brush and the driven brush can be adsorbed together through the strong magnetic force of a first magnetic block and second magnetic block to make the efficiency ofthe window wiping process high, the window is wiped thoroughly, and the defects of slight wiping and point wiping cannot occur easily; front movement is achieved through a transverse motor, steering is achieved through a vertical motor, so that the automatic steering of the robot can be realized, and the window wiping paths are more abundant; the obstacles around the robot can be detected by a light-sensing probe, and the automatic steering of the robot can be realized; the driving brush and the driven brush can be hooked by the anti-slip off device, and the danger of the falling of the drivenbrush when the robot moves can be avoided.

The invention provides an escalator or moving sidewalk with a hand strap pressure detection function. The escalator or moving sidewalk with the hand strap pressure detection function is characterized by comprising a pressure detection device and an escalator controller which are arranged below the escalator or moving sidewalk, wherein the pressure detection device comprises a pressure sensor, a processing unit and a power supply module which are mutually electrically connected, the pressure sensor is used for sensing the pressure of a hand strap and converting the pressure into an electrical signal, the processing unit is used for processing the electrical signal, judging the pressure and duration time of the pressure and outputting a judging result to the escalator controller, and when the pressure detection device detects that the pressure born by the hand strap is high and the duration time of the pressure is more than a preset value, the escalator controller controls the escalator or moving sidewalk to stop. The escalator or moving sidewalk provided by the invention has the advantages that a detection protection system used for detecting the pressure of the hand strap is constructed, the danger of children when riding the escalator or moving sidewalk is avoided, and the escalator or moving sidewalk provided by the invention can be widely applied to escalator function expansion and modification of old styles.

The invention provides a floor steel beam structure applied in the technical field of building construction. The invention also relates to a floor steel beam construction method. A left suspending lugplate (3) is arranged at the left end of each secondary beam (2) of the floor steel beam structure; a right suspending lug plate (4) is arranged at the right end of each secondary beam (2); each secondary beam (2) is arranged between the adjacent two main beams (1); the left end of the secondary beam (2) adopts a structure capable of being abutted against one main beam (1) through the left suspending lug plate (3); the right end of the secondary beam (2) adopts a structure capable of being abutted against the other main beam (1) through the right suspending lug plate (4). According to the floor steel beam structure and the floor steel beam construction method, the cost is slow, and the main beams can serve as temporary support to mount the secondary beams during floor mounting, so that hoisting machinery (a tower crane and a crane) can be separated from the secondary beams to perform other work; moreover, the secondary beams are not in the suspending state, and the construction safetyis improved.

The invention discloses an internet-of-thing express cabinet, relates to the technical field of express cabinets, and is to solve the problem that people not tall enough are inconvenient to take expresses in an express cabinet on the uppermost layer. The express cabinet specifically comprises an express cabinet body; three or more first storage cavities, second storage cavities and third storage cavities are formed in the outer wall of one side of the express cabinet body, and three or more first cabinet doors, second cabinet doors and third cabinet doors are fixed to the outer walls of the three or more first storage cavities, the outer walls of the second storage cavities and the outer walls of the third storage cavities through spring hinges respectively. By arranging the first storagecavity, the second storage cavity and the third storage cavity which are different in size, a courier can put express items of different sizes into the corresponding sizes of storage cavities, so thatutilization of space is effectively improved; and meanwhile, the storage cavity with the large size is formed in the bottom of the express cabinet, so that the overall structure of the express cabinet is more stable, and users can conveniently take large expresses.

The invention discloses a manipulator for an industrial workshop automatic production line, and belongs to the technical field of mechanical design. The manipulator for the industrial workshop automatic production line comprises a base and a first motor, the base is fixedly connected with the first motor, the output end of the first motor is fixedly connected with a rotating shaft, the end, away from the first motor, of the rotating shaft penetrates through the base and is fixedly connected with a rotating plate, a stand column is fixedly connected to the rotating plate, and the upper end of the stand column is fixedly connected with a fixing rod. By arranging a second motor, a positive and negative rotation lead screw and clamping plates, the manipulator can grab objects of different specifications, the flexibility is high, and the practicability of the manipulator is effectively improved; and by arranging first air cylinders, a second air cylinder and arc-shaped protruding blocks, the clamping plates can further clamp the objects, and the danger that the objects needing to be moved fall off in the moving process is avoided, so that the stability of the manipulator is effectively improved, and the actual use requirement is met.

The invention provides an intelligent vehicle carrying plate, and aims to achieve the technical effect that a vehicle is automatically stored and accessed in a garage and is rapid and convenient to store and access. The intelligent vehicle carrying plate comprises a vehicle carrying plate mechanism, a driving power mechanism, a steering mechanism, a guide system and a steering driven mechanism, wherein the driving power mechanism is mounted at the lower end of the vehicle carrying plate mechanism; driving wheels driven by the driving power mechanism are mounted on two sides of the vehicle carrying plate mechanism; the steering mechanism for enabling the driving wheels on two sides to rotate in a differential manner is mounted at one driving wheel on one side of the vehicle carrying plate mechanism; the steering driven mechanism comprises a rotating wheel; the rotating wheel is rotationally mounted at the bottom of the front end of the vehicle carrying plate mechanism; and the vehicle carrying plate mechanism is mounted above the guide system for enabling the vehicle carrying plate mechanism to move along a preset track. The intelligent vehicle carrying plate has the beneficial effects that the vehicles can be rapidly and conveniently stored and accessed.

A container with an automatic switch valve comprises a container body, a smearing tool and a cover body. A valve seat is directly formed at the inner wall of the head of the container body, and the bottom end of the valve seat is provided with a liquid outlet; the smearing tool is installed at the head of the container body, the top end of the smearing tool is connected with a brush, and the bottom end thereof is provided with a valve body which correspondingly opens or closes the liquid outlet arranged at the bottom end of the valve seat; the middle section at the outer wall of the smearing tool is provided with a trip, and the inner wall of the cover body is provided with a fastener for the embedment of the trip; and when the cover body is tightly locked at the head of the container body, the valve body arranged at the bottom end of the smearing tool is pressed down so as to close the liquid outlet of the valve seat, and when the cover body is opened, the fastener arranged at the inner wall is used for driving the valve body arranged at the bottom end of the smearing tool to open the liquid outlet of the valve seat. In the container, the valve is closed when the cover body is screwed tightly, thus preventing contents from leaking out; and the valve is opened when the cover body is opened, thus extruding out proper amount of the contents to be directly smeared, with simple and convenient use. The container with the automatic switch valve has simple structure, and convenient and quick assembly, and can greatly reduce the production cost.

The invention provides an elevator maintenance bottom pit supporting device. The elevator maintenance bottom pit supporting device comprises a supporting column, a cavity, an air pressure device, a main supporting device and auxiliary supporting devices; the supporting column is vertically arranged in an elevator bottom pit and internally provided with the cavity; the air pressure device is fixedto the bottom of the interior of the cavity; the main supporting device is arranged on the upper portion of the interior of the cavity, and the bottom of the supporting device is fixedly connected with the upper end of an output shaft of the air pressure device; the two opposite side walls of the supporting column are provided with the auxiliary supporting devices; and the main supporting device is in transmission connection with the auxiliary supporting devices. The elevator maintenance bottom pit supporting device further comprises a transmission device, a controller, an infrared distance measuring sensor and a speed sensor, wherein, the transmission device is arranged between the main supporting device and the auxiliary supporting devices, the infrared distance measuring sensor is arranged at the top end of the supporting column, the speed sensor is arranged on an elevator car, the infrared distance measuring sensor and the speed sensor are in communication connection with a controller, and the controller is in signal connection with the air pressure device. The elevator maintenance bottom pit supporting device is ingenious in structural design, high in supporting stability andintelligent degree and capable of providing a safe maintenance environment for maintenance personnel.

The invention discloses a suspended ceiling assembling structure of a fully furnished house, and belongs to the technical field of home building material decoration. The suspended ceiling assembling structure is characterized by comprising a suspender mechanism, the top of the suspender mechanism is fixedly connected with a mounting base, and the bottom of the suspender mechanism is fixedly connected with keels; first clamping grooves which are evenly distributed are formed in the opposite faces of the two keels correspondingly, connecting blocks are arranged on the inner walls of the two first clamping grooves, first clamping blocks matched with the first clamping grooves are fixedly connected to the left sides and the right sides of the connecting blocks correspondingly, and auxiliary plates are fixedly connected to the bottoms of the front faces and the bottoms of the back faces of the connecting blocks correspondingly; and limiting assemblies are arranged on the inner walls of theconnecting blocks, and the limiting assemblies penetrate through the connecting blocks and extend to the outside of the connecting blocks. According to the suspended ceiling assembling structure, by arranging the first clamping grooves, the first clamping blocks and auxiliary limiting mechanisms, the connecting blocks can be rapidly mounted and fixed, time is saved, the working efficiency is improved, mounting of a ceiling body is convenient, and the connecting blocks are clamped to the first clamping grooves through the first clamping blocks.

The invention relates to rental equipment. The rental equipment comprises a storage mechanism which can be used for storing a rental electronic device. The storage mechanism comprises a hollow housing, an elastic energy storage part and a buckle which are fixedly arranged on the housing, an inner cavity of the housing is used for storing the electronic device, the elastic energy storage part is slidably connected with a pushing part, a reduction part is slidably connected between the pushing part and the housing, at least part of the pushing part extends to the inner cavity to abut against theelectronic device, and the buckle is used for fixing the electronic device in the inner cavity. When the electronic device is unlocked by the buckle, elastic impacting force of the elastic energy storage part drives the pushing part to push the electronic device out of an opening from the inner cavity, and the reduction part impacts on the electronic device to control the moving speed of the electronic device relative to the inner cavity. According to an electronic device storage mechanism, the elastic energy storage part can be set to ensure the pushing out of the electronic device through larger elastic force through the speed control performed by the reduction part, and the slipping of the electronic device is prevented through the reduction part.

The invention relates to the technical field of medical instruments, in particular to a multifunctional infusion support for a hepatology department. The infusion support comprises a bottom plate; a supporting plate is welded to the outer surface of one side of the bottom plate; universal wheels are welded to the lower surface of the bottom plate; a main rod is welded to the upper surfaces of theuniversal wheels; a fixed plate is welded to the outer surface of the lower end of the main rod; a storage cabinet is welded to one side of the fixed plate; a cabinet door is hinged to one side of theupper surface of the storage cabinet; a folding stool is installed on one side of the upper surface of the bottom plate; an inner rotating rod is rotationally installed at the upper end of the interior of the main rod; an infusion bottle supporting rod is welded to the upper surface of the inner rotating rod; an infusion bottle installation shell is welded to one end of the infusion bottle supporting rod; a wire groove is welded to the front surface of the infusion bottle installation shell; and a lower supporting rod is arranged at the lower end of the folding stool. The infusion support hasa temporary rest function, a temporary rest component can be used as a handrail, an infusion bottle can be clamped and fixed, and the fixing stability is high.

The invention provides a processing and forming method for a communication cable plastic protection pipe, and relates to the technical field of communication cable plastic protection pipe processing.The processing and forming method comprises a bottom plate, a conveying mechanism, a cutting mechanism and a clamping mechanism, wherein the cutting mechanism is fixedly arranged on the bottom plate,the clamping mechanism is fixedly connected above the cutting mechanism, the conveying mechanism is arranged on the left side of the cutting mechanism, and the conveying mechanism and the cutting mechanism are arranged in a straight line. According to the processing and forming method, the communication cable plastic protection pipe can be clamped through the clamping mechanism, so that the stability of the cutting mechanism during cutting is improved, the qualified rate of the communication cable plastic protection pipe cutting can be further guaranteed, and meanwhile, the production efficiency of the communication cable plastic protection pipe cutting can be improved.

The invention discloses a hooped climbing construction device. The hooped climbing construction device structurally comprises a hooped climbing structure, a control box shell, a display, a control button, a box body, spraying holes, a washing ring, a spraying ring, a supporting ring and a bearing shell, the hooped climbing structure is matched with the bearing shell, the spraying holes are formedin the spraying ring and are symmetrically distributed on the spraying ring, the spraying ring is connected with the washing ring, the lower end of the washing ring and the lower end of the spraying ring are connected to the upper end of the supporting ring, and the lower end face of the washing ring and the lower end face of the spraying ring are perpendicular to the supporting ring. The hooped climbing construction device replaces manual work to clean and spray a frame stand column of a steel structure and a concrete structure, the workload of manual work is greatly reduced, workers do not need to go to a high place to work, the danger that high-sky working personnel fall is eradicated, and the life safety of construction personnel is further guaranteed.

The invention provides a catalyst preparation system, which comprises a bottom plate, a clamping device and a drying device, wherein the drying device is fixedly installed on the bottom plate, the clamping device is arranged on the drying device, and the drying device comprises a drying operation frame, a drying cavity, a heat conduction cylinder, a heating wire, a heat dissipation pipe, a placement frame, a horizontal plate, a vertical plate, an air blowing mechanism and a heating mechanism. According to the invention, batch catalyst drying preparation can be achieved, the drying cost is greatly reduced, meanwhile, and the drying efficiency is further improved; and the catalysts are arranged one by one through the clamping devices to be dried, so that the drying attractiveness can be guaranteed, and meanwhile, deformation caused by extrusion between the catalysts can be avoided.

The invention relates to the technical field of winches, and discloses a hydraulic winch for hoisting building material and a using method thereof. The hydraulic winch comprises a base table, a supporting frame is fixedly installed on the front face of the top of the base table, fixed discs are fixedly installed at the two ends of the top of the base table, and bearings are fixedly installed in the middles of the interiors of the two fixed discs. A winding pipe is fixedly installed on the inner sides of the two bearings, limiting discs are fixedly installed at the two ends of the winding pipe,and oil injectors are fixedly installed at the tops of the two fixed discs. According to the hydraulic winch for hoisting the building materials, the base table, the supporting frame, a guide ring and the like are arranged to achieve the purpose of being good in winding effect, the two ends of a rope are fixedly installed at the winding pipe and the building material end correspondingly, then a hydraulic motor starts to control the winding pipe to rotate, at the moment, the rope can stably complete the hoisting work without shaking under cooperative work of the supporting frame, a guide roller and the guide ring, so that the stable effect of the work is guaranteed, and the rope can be wound when the starting work is completed.

The invention discloses a movable board house installation structure and installation method, and relates to the technical field of movable board house assembly. The movable board house installation structure comprises a steel frame assembly and a sandwich board assembly, wherein the steel frame assembly comprises a plurality of first vertical columns, second vertical columns, third vertical columns, beams and purlins, and the sandwich board assembly comprises side panels and roof panels. The first vertical column are of H-shaped steel structures, the second vertical columns are of square pipestructures, a T-shaped steel plate is fixed to the circumferential side surface of each second vertical column, the top surface of the T-shaped steel plate is an inclined surface, and a limiting plate is fixed to the circumferential side surface of one end of each second vertical column. According to the movable board house installation structure and installation method, through the cooperative use of rectangular notches and positioning plates, easy alignment and positioning of the positions of the beams are facilitated, the functions of supporting and lifting the beams are achieved through supporting plates, and the purlines are supported and positioned through the clearance fit of installation notches and the purlines; and the problem of danger of falling off of installation personnel caused by uneven application of a force due to excessively high height is solved, and by arranging tripods, the problem of insufficient stability of an existing movable board house is solved.

The invention discloses a ceiling-type wireless router which comprises a power supply button and a ceiling-type wireless router. A rear shell is arranged inside the ceiling-type wireless router; a ceiling disk and auxiliary suckers are arranged on the surface of the rear shell; heat dissipation holes are formed on the surface of the rear shell; and a power supply interface is formed on the front surface of the rear shell. Compared with the prior art, the ceiling-type wireless router disclosed by the invention has the beneficial effects that the ceiling-type wireless router is scientific and reasonable in design, and simple and convenient to operate; the auxiliary suckers are arranged around the ceiling disk and by using the auxiliary suckers, the ceiling-type wireless router can be firmly fixed, so that a danger generated by falling of the ceiling-type wireless router is avoided, and safety performance of equipment is improved; heat adsorption sheets, a heat conduction sheet and radiators are arranged inside the shell, heat can be adsorbed by using the heat adsorption sheets and the heat conduction sheet, and the adsorbed heat can be dissipated by using the radiators, so that heat dissipation performance of the equipment is improved.

The invention discloses a hidden flat display screen supporting and protecting device capable of preventing falling. The device comprises a table top, a fixed shell is fixedly connected to the lower side of the table top, and a rotary reset device is arranged in the table top and comprises a table top through groove communicating with the upper end face and the lower end face of the table top, a rotating shaft is rotatably connected between the front end wall and the rear end wall of the table top through groove, and a torsional spring is fixedly connected between the rotating shaft and the table top. When the table is used, the lifting platform can be lifted to the same horizontal position as the table top through the lifting device, and the clamping adjusting device is used for clampingthe table top. The flat plate is fixed in the device to achieve the best angle with the sight of people, when the table top moves and the flat plate shakes accidentally, the protective cover plates onthe two sides can rapidly fix the edge of the flat plate, danger caused by falling of the flat plate is avoided, and meanwhile the rotary cover plates and the table top are located on the same horizontal plane when the rotary cover plates are not used. The integrity of the desktop is improved, and the aesthetic feeling is improved.

The invention discloses a wardrobe convenient to detach. The wardrobe comprises a guide rail, wardrobe drawers, a rotary shaft, idler wheels, grooves, a hook fastener, a loop fastener, a screw and a nut, the guide rail is installed at one side of the top of the base, the loop fastener is arranged at the top of the base, a wardrobe body is installed at the outer side of the top of the base, the hook fastener is arranged at the bottom of the wardrobe body, the idler wheels are installed in the middle of an opening of the groove and are connected with the openings of the grooves through the rotary shaft, the screw is installed at the top of the through hole, and the nut is installed at the bottom of a rubber cushion. The wardrobe is scientific and reasonable in structure and safe and convenient to use; through the arrangement of the rotary shaft and the idler wheels, a push and pull door moves on the guide rail, and noise is lowered; through the arrangement of the hook fastener and the loop fastener, the wardrobe body and the base are conveniently installed and detached; through the arrangement of the screw and the nut, the wardrobe drawers and the cabinet body are conveniently installed, the effecTS of supporting and fixing the wardrobe drawers is achieved, and the danger that the wardrobe drawers fall is prevented.

The invention discloses a solid-liquid separation type laparoscopic retrieving bag, which comprises an outer bag and an inner bag sheathed in the outer bag. The bottom of the outer bag is kept separated, and a suction pipe is sandwiched between the outer bag and the inner bag. One end of the suction pipe extends into the outer bag, and the other end extends out of the mouth of the outer bag. The inner bag It is a porous or network structure that allows solution to pass through. The present invention adopts a double-layer design, which can only glue the pocket openings of the inner bag and the outer bag. After the specimen is loaded into the retrieval bag and during the subsequent taking out process, the liquid and liquid specimen will seep from the inner bag to the outer bag. In the process, the solid specimens are shredded and taken out without contact with the outer bag, which avoids the danger of the bag being broken. The specimen is put into the extraction bag. During the tightening of the bag opening and the pulling process, the solid and the liquid are automatically separated. After the aspirator continues to suck the liquid, the volume of the specimen shrinks rapidly, which speeds up the speed of the surgeon taking out the specimen from the minimally invasive hole.

The invention belongs to the technical field of garments, and provides a multifunctional field survival garment which comprises a garment body, a heat preservation mechanism and a dust removal mechanism. A garment inner layer is arranged inside the garment body and is matched with the garment body, and the garment body and the garment inner layer are provided with moisture sealing zippers; the heat preservation mechanism comprises a heater, a power source, a temperature regulator and a switch, the dust removal mechanism comprises a dust mask, a buckle and a protective cover, and the protectivecover comprises a protective cover body, a mounting opening and a visual field frame. The multifunctional field survival garment has the advantages that the multifunctional field survival garment hasa heat preservation function, and accordingly the sleep quality of people can be improved during field survival; the multifunctional field survival garment further has a filter function, accordingly,respiration of people in severe air environments can be guaranteed, and the physical health of human bodies can be protected.

The invention provides a wall coating spraying device. A hanger is hung on a platform at the upper part of a wall, longitudinal track ropes are arranged on two sides of the front of the hanger respectively, vertically moving motors are mounted at joints of the hanger with the longitudinal track ropes, shaft rods are connected between the two longitudinal track ropes through vertical pulleys, and acoating sprayer is mounted on the shaft rods; a coating trough is arranged in the coating sprayer; a coating pump is mounted on one side of the coating trough and communicated with a spray nozzle through a coating pipe, and a plurality of injection holes are formed in the spray nozzle. The wall coating spraying device can spray a coating to wall surfaces which are planar or in different radians,remote operation and control are realized, labor is not needed, so that human falling danger can be prevented, and the safety is high. The wall coating spraying device is suitable for being used as the device for spraying the coating to building walls.

The invention discloses a mask plate installing device of an exposure machine. The device comprises a mask frame for fixing a mask plate and an air bag which is arranged below the mask frame and used for supporting the mask frame, wherein the air bag is communicated with an air supply unit through an air supply pipeline; a pneumatic switch valve is arranged on the air supply pipeline; and when the supply of the air supply unit is interrupted, the air supply pipeline is controlled by the pneumatic switch valve to be closed so as to prevent the air bag from air leakage. According to the invention, the pneumatic switch valve is arranged on the air supply pipeline, so that when the supply of the air supply unit is interrupted, the pneumatic switch valve can be automatically switched to a close state so as to block the air in the air bag and prevent the mask frame from dropping due to the air leakage of the air bag; and when the air supply unit normally supplies, the air supply pipeline is controlled by the pneumatic switch valve to continue supply air to the air bag, so that the danger that the mask frame drops due to the interruption of the air supply unit is avoided.

The invention provides a window wiping robot. The window wiping robot comprises a robot body, wherein the robot body comprises a casing and a lifting handle; the lifting handle is arranged at the outer side of the top part of the casing; an installation frame is arranged in the middle part of the inner side of the bottom part of the casing; a cavity is formed between the installation frame and thebottom part of the casing; a vacuum pump is arranged at the outer side of the top part of the installation frame; an air suction pipe of the vacuum pump penetrates through the top part of the installation frame and extends into the cavity; an air pressure sensor is arranged at the inner side of the top part of the installation frame; a plurality of air suction holes are formed in the bottom partof the casing just under the installation frame. The window wiping robot has the advantages that the traditional crawler movement structure is replaced by raod wheels, so that the production cost is reduced, the size is reduced, and the occupation space is saved; by arranging four wiping mechanisms at the bottom part of the robot, the window can be simultaneously wiped up and down as well as leftand right, the wiping range is broad, and the wiping efficiency is high.