481 results about "Suction equipment" patented technology

The utility model relates to the technical field of oil fume suction equipment, and provides a cleaning assembly and a range hood, and the cleaning assembly comprises a liquid storage part, a cleaning liquid container and an output pump. Wherein the liquid storage part is provided with an inlet end, a liquid outlet end and an air outlet end, and is arranged in the range hood; the cleaning liquid container is communicated with the inlet end and is suitable for providing cleaning liquid; the output pump is provided with a liquid inlet, a foam outlet and an air inlet, the liquid inlet is communicated with the liquid outlet end, the air inlet is communicated to the air outlet end, and the foam outlet outputs a liquid-air mixture. According to the cleaning assembly provided by the utility model, the output pump can pump the cleaning liquid in the cleaning liquid container into the liquid storage part so as to supplement the cleaning liquid for the liquid storage part, and meanwhile, the foam outlet of the output pump can also pump the cleaning liquid out of the liquid storage part and output a liquid-gas mixture after the cleaning liquid is mixed with gas, so that the range hood is cleaned; according to the range hood cleaning assembly, when the range hood is cleaned by the cleaning assembly, the range hood can be cleaned without arranging two water pumps, the structure is simpler, and the cost can be saved.

The sputum suction equipment comprises a main body box, the driving assembly is mounted in the main body box, and the output end of the driving assembly extends out of the main body box; the sputum suction assembly is mounted at the output end of the driving assembly; the double-layer film is mounted at the suction end of the sputum suction assembly; according to the technical scheme, the driving assembly is adopted to drive the sputum suction assembly to rotate, the rotating spiral back suction head makes uniform contact with the oral cavity of a patient, and mucosa damage caused by single-point repeated friction is avoided; and stubborn sputum scab and thick sputum can be cleaned through rotation of the spiral back-suction head, the spiral groove guides the sputum to gather towards the head of the spiral back-suction head, side wall adsorption is reduced, more sputum can be conveniently sucked into the spiral back-suction head, and more efficient sputum suction is achieved.

The invention discloses a river and lake sludge dewatering and curing ecological bank protection process. Ecological bank protection construction is achieved through in-situ resourceful treatment of sludge. The process comprises the following steps: firstly, pressing natural wood piles into the bottom of a bank slope to form a comb-shaped anti-sliding bent frame, and paving high-strength permeable geotextile pipe bags between the piles and the bank slope; bottom mud is extracted by adopting mud suction equipment, is modified by a flocculating agent and then is injected into a tubular bag in a layered manner, and gravity dehydration is completed by utilizing the permeable characteristic of tubular bag fabric; the tops of the pipe bags are backfilled with stacking materials for graded stacking, and solidification is accelerated through external pressurization to form a stable bank protection filling body; and finally, the surface layer is covered with planting soil, moisture-proof plants are planted, and the composite revetment with the permeation drainage function and the ecological function is constructed. Compared with a traditional technology, the technology effectively solves the problems of bottom mud outward transportation pollution and resource waste through triple synergy of geotextile tube bag gravity dehydration, natural timber pile stability enhancement, building body strength improvement through graded stacking and loading and the like, and the formed revetment has ecological restoration and landscape functions. The method is suitable for ecological restoration of rivers and lakes, wetland reconstruction and waterfront environment treatment, and has the comprehensive advantages of convenience in construction, environmental friendliness, economy and high efficiency.

The invention relates to the technical field of waterproof coatings, in particular to an environment-friendly waterproof coating spraying device which comprises a frame, moving wheels, a cleaning mechanism and a spraying mechanism, the cleaning mechanism comprises a cleaning cover, a cleaning nozzle, a first cleaning roller, a second cleaning roller and negative pressure suction equipment, and integration of base surface cleaning and impurity recovery is achieved. The spraying mechanism comprises a spraying cover, a coating hopper, an air compressor, a coating header pipe, a high-pressure gas header pipe, a coating nozzle group and a positive-pressure nozzle group, and a uniform waterproof coating is formed through high-pressure spraying. According to the device, closed design is adopted, the negative pressure harmful gas adsorption function and the positive pressure leakage prevention function are integrated, cleaning-spraying continuous operation is achieved, the problems that traditional manual spraying is low in efficiency, uneven in coating, serious in pollution and the like are solved through mechanical construction, the construction quality and the environmental protection performance are remarkably improved, and the device is suitable for large building waterproof engineering.

The invention relates to the technical field of medical training, and discloses a sputum suction operation training method and system based on a virtual reality technology. The method comprises the steps that historical operation records of a trainee are collected, key operation nodes are extracted, and an airway state model of a virtual patient is constructed based on the nodes; secondly, setting a virtual sputum suction equipment model, performing a multi-working-condition simulation test on the virtual sputum suction equipment model to obtain operation response characteristics, and mapping the equipment model into the virtual airway state model; then calculating a secretion distribution parameter of a virtual airway in a training period and a theoretical clearance load of virtual equipment, and combining operation response characteristics to obtain an operation intensity parameter; generating an operation triggering instruction sequence based on the operation intensity parameter, and performing staged operation control on the virtual equipment according to the sequence; and finally, carrying out quantitative evaluation on the operation effect of the virtual equipment in the virtual airway. According to the method, a targeted virtual training scene can be constructed, a real operation response is restored, and accurate tracking and effect quantitative evaluation of the operation process are realized.

The embodiment of the invention provides a smoke suction and exhaust method, device and equipment and a medium. The method comprises the following steps: acquiring multi-modal data of a preset space; determining smoke distribution prediction information of the preset space after the preset time according to the multi-modal data; the air suction capacity of at least one air suction opening of the preset space is determined; according to the smoke distribution prediction information and the air suction capacity of at least one air suction port, at least one target air suction port is determined, air suction equipment of the target air suction port is controlled to perform air suction, the hysteresis quality of smoke suction and exhaust response is reduced, and the suction and exhaust control logic can cope with non-uniformly distributed smoke. And the situation that the energy consumption is too large but the exhaust efficiency is low is avoided, and therefore the user experience is improved.

The utility model belongs to the technical field of medical instruments, and particularly relates to a pair of efficient smoke exhaust laparoscope operating forceps which comprises a forceps head, a hollow forceps tube, a mounting seat, a movable handle and a fixed handle, the movable handle and the fixed handle are mounted on the mounting seat and hinged with each other, a plurality of smoke suction holes are formed in the hollow forceps tube, one end of the hollow forceps tube is connected with the forceps head, and the other end of the hollow forceps tube is connected with the mounting seat. A negative pressure channel communicated with an inner cavity of the hollow forceps tube is arranged in the mounting seat, and the tail end of the negative pressure channel is connected with air exhaust equipment; the movable handle is connected with the forceps head through a pull rod assembly and controls the forceps head to be opened and closed, the pull rod assembly comprises a core rod, a core rod head and a pull rod, and the core rod is of a spiral structure and is arranged in the hollow forceps tube. Through the design of the smoke suction hole, the negative pressure channel, the smoke exhaust switch assembly and the air extractor, smoke generated by cutting of an energy instrument in the operation process can be rapidly exhausted through negative pressure air suction, the operation speed is increased, the operation risk is reduced, and the problem that the smoke influences the operation visual field is solved.

The utility model relates to the field of white carbon black, and discloses a white carbon black superfine grinding modification device which comprises a shell, a material suction pipe is arranged on the top of the shell, material suction equipment is arranged on the upper portion of the shell, a grinding mechanism is arranged in the shell, and the grinding mechanism comprises a crushing mechanism and a grinding assembly. The grinding assembly comprises a grinding disc, the bottom of the grinding disc is fixedly connected with a plurality of supporting rods, the supporting rods are fixedly connected with the bottom of the inner wall of the shell, and a first motor is arranged on the lower portion of the grinding disc and fixedly connected with the inner wall of the shell. According to the white carbon black superfine grinding device, the shell, the grinding assembly and the air inlet are matched with one another, and the first motor, the rotating shaft, the grinding disc and the grinding piece are matched with one another, so that the white carbon black superfine grinding device can more effectively carry out superfine grinding on white carbon black materials, the production efficiency of the device can be effectively improved, and the device is more practical.

The invention discloses a new material rolling oil viscosity detection device, and relates to the technical field of new material rolling oil detection, the new material rolling oil viscosity detection device comprises a heating seat and a suction assembly, the top of the heating seat is provided with a water bath cylinder, the top of the water bath cylinder is provided with a top cover, the top of the top cover is fixedly provided with a motor, and the output shaft of the motor is connected with a driving gear. Switching of the three-way valve and linkage of the suction mechanism can be synchronously completed through simple operation of pushing and pulling the adjusting plate, in the pushing process of the adjusting plate, the toothed plate and the adjusting gear are meshed to drive the valve rod to rotate, the three-way valve is communicated with the capillary viscometer and the suction pipeline, and meanwhile the speed reducer reduces the speed and increases the torque to drive the piston to reciprocate to form stable negative pressure; continuous suction is achieved by matching with the design of two sets of one-way valves, when the adjusting plate is pulled back, the three-way valve automatically resets to be communicated with the atmosphere, additional operation devices are not needed in the whole process, the tedious process of repeatedly switching air suction equipment in traditional detection is remarkably simplified, and the suction rate is accurately controlled through the speed reducer.

The invention relates to the technical field of pipeline welding, in particular to a serpentine pipe full-automatic welding multi-row pipe synchronous positioning frame which comprises two positioning frame bodies and a plurality of conveying rollers rotationally installed between the two positioning frame bodies, and a welding table is welded to the outer wall of one positioning frame body; the welding table is provided with a material storage structure, a material pushing structure and a shielding structure used in cooperation with the material pushing structure. The pushing structure comprises an electric telescopic rod fixed to the upper surface of the welding table, and a pushing frame is installed at the output end of the electric telescopic rod. According to the multi-row pipe synchronous positioning frame for full-automatic welding of the serpentine pipes, closed welding is achieved through the vertically-distributed baffle plate structures, strong welding arc light is effectively isolated, eyes and skin of operators are protected, welding smoke is limited in the closed cavity and can be efficiently extracted and purified from the source through air extraction equipment, and the welding quality is improved. And the workshop air quality is greatly improved.

The utility model relates to the technical field of printer air suction equipment, and provides a paper conveying platform air suction structure of a digital printer, which comprises a pair of side frames and a conveying belt, the conveying belt is arranged between the side frames, suction equipment is connected to one end of a suction pipeline, the suction pipeline is arranged in the side frames, and an inner plate is arranged between the side frames. The dispersive air suction assembly is arranged on the inner plate, the filtering assembly is arranged on the suction pipeline, the dispersive air suction assembly comprises a plurality of rectangular openings, the rectangular openings are all formed in the surface of the inner plate, rotating rods are rotationally connected into the rectangular openings, the conveying belt is attached to the surface of the inner plate, and a plurality of inner cavities are formed in the inner plate. By means of the technical scheme, the problems that in the related technology, a conveying belt is completely attached to a platform, the conveying belt can be tightly sucked to the surface of the platform through suction force, friction force is large when the conveying belt moves, fine powder exists on the surface of paper, the powder can be sucked into suction equipment, and operation of the suction equipment is affected are solved.

The utility model relates to the technical field of industrial silicon processing, in particular to an energy-saving environment-friendly powder screening machine for industrial silicon crushing processing, which comprises a machine body and a processing device, a collecting box is arranged below the machine body, a driving motor is mounted on the surface of one side of the machine body, the output end of the driving motor is fixedly connected with a screening drum body, and the processing device is arranged on the surface of the machine body. The processing device comprises two first supports and two second supports, the two first supports and the two second supports are fixedly connected with the surface of the machine body respectively, and the inner walls of the first supports are rotationally connected with transmission heads. The phenomenon that dust overflows and pollutes the environment is reduced, no extra suction equipment needs to be added, driving is achieved only through a motor in the equipment, the driving of screening and dust collection is achieved, the energy-saving effect is achieved, and then the overall practicability of the equipment is improved.

The utility model relates to the technical field of oil sludge treatment, in particular to an in-tank oil sludge mechanical conveying device which comprises a tracked robot body and a conveying hose. An inclined support is fixedly arranged on the tracked robot body, a suction head is fixedly arranged at the end of the conveying hose, the other end of the conveying hose is connected with oil sludge suction equipment, a mounting table is fixedly arranged on the inclined support, and the suction head is arranged on the mounting table through a mounting assembly and an auxiliary assembly. A suction head is clamped into a mounting arc groove, so that an annular clamping groove is clamped with a fixing ring, a shifting rod is moved to drive a semi-ring limiting plate to movably clamp and limit the suction head in an annular sliding groove, then a positioning plate is moved to be clamped with the shifting rod, a rotating plate is rotated to be clamped into a limiting clamping groove, and then a knob bolt is rotated to enable an inserting column to be inserted into an inserting groove; stable installation of the suction head is guaranteed, operation is easy, auxiliary tools are not needed, the suction head can be rapidly disassembled and assembled to be arranged on the tracked robot, and the oil sludge pumping and conveying efficiency in the tank is improved.

The utility model relates to the technical field of PVC decorative film processing, and particularly discloses a PVC decorative film cutting device convenient to clean, which comprises a conveying device, a console is arranged on one side of the outer wall of the conveying device, and a storage mechanism for storing residues and scraps is arranged at the front end of the conveying device; and the storage mechanism comprises a storage shell, the storage shell is fixed to the front end of the conveying equipment, a motor is embedded in one side of the outer wall of the storage shell, and the power output end of the motor is connected with a two-way threaded rod. Through the motor, the two-way threaded rod and the sliding plate, adjustment can be conducted according to the width of materials, the applicability is improved, the materials in the conveying process can be trimmed in cooperation with the base and the trimming knife, meanwhile, through the containing shell, the drawing shell and the air exhaust device arranged at the bottom end of the containing shell, chippings generated by trimming can be sucked and contained, and the practicability is high. It is avoided that after materials are adsorbed or chippings are diffused, cleaning is difficult or trimming operation is affected.

The device comprises an operating handle, an excision cavity with an opening in one side and a cutter, a freely-extending operating rod is arranged on the operating handle, the excision cavity is formed in the free end of the operating rod, and a suction limiting mechanism connected with external negative pressure suction equipment is movably arranged in an inner cavity of the excision cavity. The suction limiting mechanism is opposite to the opening of the excision cavity, can suck hypertrophic cardiac muscle tissue to be excided into the excision cavity, and can be close to or far away from the opening of the excision cavity so as to limit and adjust the depth of an inner cavity of the excision cavity, the cutter is movably arranged at the opening of the excision cavity in parallel, and a linkage mechanism is further arranged on the operating handle. The linkage mechanism penetrates through the operating rod to be connected with the cutter, the cutter can be pushed to move in parallel from one end of the opening of the excision cavity to the other end of the opening of the excision cavity so as to excide hypertrophic cardiac muscle tissue entering the excision cavity, by adjusting the position of the suction limiting mechanism, a doctor can conveniently control the excision thickness or depth, and the operation precision is improved.

The utility model relates to the technical field of jasmine flower harvesting, in particular to a picking tool which comprises a collecting box and a suction pipe, a suction pump is arranged in the collecting box, one end of the suction pipe is communicated with the collecting box, and the picking tool further comprises a picking device. The picking device comprises a suction tube, a closing-in piece arranged at one end of the suction tube and a closing-in mechanism movably arranged on the suction tube in a sleeving mode, the other end of the suction tube is communicated with the other end of the suction tube, the outward end of the closing-in piece is opened outwards in a horn shape, and the closing-in piece can deform and reset. The closing-up mechanism can control the closing-up amount of the outward end of the closing-up piece. The picking tool is simple in structure, the suction force of the suction end can be changed, and power waste of suction equipment is avoided.

The utility model discloses a material suction device of a hot press. The material suction device comprises a rack, a conveying device, a translation device, a lifting device and a suction cup assembly. The conveying device is installed on the rack and used for conveying plates backwards. A translation seat of the translation device is in front-back sliding connection with the rack and is driven by a first driving part; a lifting frame of the lifting device is in up-down sliding connection with the translation seat, and the left and right sides of the lifting frame are respectively driven by two second driving parts; the suction cup assembly is installed on the lifting frame and used for adsorbing and placing the plate. When the equipment adsorbs a plate, one side of the plate is firstly lifted to damage a vacuum area, so that the plate is conveniently adsorbed and is prevented from being damaged, and the production efficiency is effectively improved.

The photovoltaic panel cleaning device comprises a cleaning disc, the first face of the cleaning disc is connected with a driving assembly through a rotating shaft, the driving assembly is used for driving the cleaning disc to rotate, a channel is formed in the rotating shaft, and the first end of the channel is connected with air suction equipment; the first end of the channel extends to the first face of the cleaning disc, the second end of the channel extends to the second face of the cleaning disc, the air suction equipment is used for sucking dust through the channel, a plurality of inclined scraping strips are arranged on the second face of the cleaning disc, the first ends of the scraping strips extend to the channel, and the second ends of the scraping strips extend to the edge of the second face of the cleaning disc. The direction pointed by the second end of the scraping strip is the rotating direction of the cleaning disc; by means of the design, the dust collection range and effect of the suction assembly can be effectively improved, and meanwhile photovoltaic panel damage caused by large suction force can be avoided.

The invention discloses an adjustable lossless annular jet flow fish suction pump, which belongs to the technical field of fish suction equipment, and comprises a working water straight pipe, the outer wall of the working water straight pipe is communicated and connected with a working water inlet pipe, and one end of the working water straight pipe is connected with a conveying mechanism. The other end of the working water straight pipe is sequentially connected with a reducing pipe, a buffering assembly, a throat pipe and a diffusion pipe in a penetrating mode. The diameter of the end, close to the working water straight pipe, of the reducing pipe is larger than that of the other end. The size of the annular nozzle can be adjusted through the flow channel structure of the working water straight pipe, the reducing pipe, the buffer assembly, the throat pipe and the diffusion pipe in cooperation with the telescopic guide assembly. The guide assembly stretches and retracts inside to change the distance between the guide assembly and the inner wall of the reducing pipe, adjustment operation is easy and convenient, and then the width of the annular nozzle is adjusted; the nozzle is narrowed to increase the negative pressure and the conveying speed, and the efficient conveying requirement is met; and the nozzle is widened, so that the negative pressure is reduced to adapt to low-speed conveying of fragile live fish.

The utility model provides a kind of mechanical arm lateral suction subassembly, comprising: a support base;Positioning plate is set in the side of support base;A sliding base is slidably set on support base;A suction disc matrix is set in sliding base, the suction disc of suction disc matrix is oriented to the side of departing from positioning plate, several exhaust branch pipes connect the back side of suction disc matrix and communicate suction disc;A exhaust main pipe, exhaust main pipe is limited in positioning plate, one end of exhaust main pipe is communicated exhaust branch pipe respectively, other end is communicated a air extraction equipment;And several support arms, the first end of support arm is connected to support base, and second end extends to the side of departing from positioning plate, and support arm forms the support platform of support suction object bottom surface jointly;A abutting plate is connected to the second end of support arm.The utility model can be aimed at unloading stacked carton scene lateral gripping, support heavier load, support carton bottom in the process of carrying, prevent bottom box from falling.

The utility model provides a pressure-regulating medical multi-connected tank, and belongs to the technical field of medical instruments. Comprising a tank body, a suction cup is arranged at the bottom of the tank body and communicated with the interior of the tank body, a three-way pipe is fixed to the top of the tank body and communicated with the interior of the tank body, and a pressure adjusting assembly is arranged at the top of the three-way pipe; the multiple cup bodies are connected through the three-way pipe, and air in the multiple cup bodies is extracted through the negative pressure suction equipment, so that the multiple cup bodies are all in a vacuum state, the cupping operation is achieved, and the problems of complexity and long time consumption caused by one-by-one negative pressure suction operation are solved; and the vacuum state of the cup body can be quickly relieved through the arrangement of the pressure regulating assembly, so that the time consumption during cupping operation is greatly reduced.

The utility model discloses convenient adjustable grain suction equipment which comprises a base, a mounting mechanism is arranged on the inner wall of the base, the mounting mechanism comprises a mounting sliding block, and the mounting sliding block is connected to the inner wall of the base in a sliding mode; the driving mechanism comprises a double-shaft motor, a driving belt pulley, a transmission belt, a driven belt pulley, a mounting shaft, a positioning sleeve, an auger and a controller, and a conveying mechanism is arranged at the top of the base; the double-shaft motor is adaptively mounted on the equipment through the mounting mechanism, the driving mechanism is matched with the conveying mechanism to carry out feeding, discharging and conveying on grains, the whole equipment is convenient and fast, flexible bulk conveying operation can be carried out on the grains according to the material suction requirement, in the conveying process, the internal condition of the conveying mechanism can be observed, and the conveying efficiency is improved. And whether the equipment is in a normal grain suction state or not is judged, so that the stability of grain suction operation is ensured, and the practicability and functionality of the equipment are improved.

The utility model relates to the technical field of suction cup structures, in particular to a suction cup structure capable of rapidly switching plugging plates and demolding equipment. The suction cup base of the suction cup structure capable of rapidly switching the plugging plate is communicated with suction equipment through a pipeline, and the suction cup base is provided with a downward opening; the cover plate is detachably arranged below the suction cup base so as to block the opening, a plurality of suction holes distributed in an array mode are formed in the cover plate, suction nozzles are installed in the suction holes, the suction cup base and the cover plate jointly define a containing space, and the containing space is communicated with the pipeline and an air channel of each suction nozzle; and any one of the blocking plates is mounted in the cover plate, and the blocking plates are used for blocking the air channel of the suction nozzle in a material-free area. The additionally-arranged blocking plates can block the suction nozzles in the areas without materials, the materials can be better adsorbed, and the multiple blocking plates of different types can adapt to adsorption of the materials of different types.

The utility model provides a kind of polysilicon reaction kettle cleaning device, it is related to polysilicon production equipment technical field.The polysilicon reaction kettle cleaning device includes: mobile trolley, silicon material crushing mechanism and dust extraction mechanism.Mobile trolley has trolley body, and moving assembly is arranged on trolley body;Silicon material crushing mechanism is set on trolley body;Silicon material crushing mechanism at least has lifting cylinder and drill bit, and lifting cylinder can drive drill bit to work;Dust extraction mechanism has suction line and conveying line;Suction line is arranged on mobile trolley, and conveying line is communicated with suction line;When mobile trolley is placed inside polysilicon reaction kettle body, conveying line can pass through the reaction kettle inlet and outlet opening on polysilicon reaction kettle body and be communicated with external suction equipment.The utility model can replace artificial to carry out efficient polysilicon reaction kettle inside residual silicon material cleaning.

1. The name of the design product: Mobile water supply and sewage suction equipment for railways. 2. The use of the design product: To perform water supply and sewage suction operations on freight cars and passenger cars. 3. The key design points of the design product: lie in the combination of shape and color. 4. The picture or photo that best shows the key design points: the three-dimensional view. 5. The design of the appearance for which protection is claimed includes color.

The invention discloses a biological cell culture sampling device for a biological test, which comprises a culture bottle and a sealing cover made of a transparent material, a rotary locking mechanism and a sealing assembly are arranged between the sealing cover and a sampling port in a matched manner, and an electric push rod is fixedly arranged at the upper end of the sealing cover. The piston end of the electric push rod extends into the sealing cover and is fixedly provided with a sampling needle assembly, the side wall of the sealing cover is communicated with a vacuumizing connector and a pressure regulating air inlet valve, an efficient particle air filtering film is arranged in the pressure regulating air inlet valve, and the top of the sealing cover is provided with a suction connector used for being connected with external negative pressure suction equipment. Through cooperation of the rotary locking mechanism and the sealing assembly, reliable sealing of the sealing cover and the sampling opening of the culture bottle is achieved, vacuumizing pretreatment is combined, external air is prevented from entering the culture bottle during puncture sampling, the sterility of a culture system is guaranteed, a main sealing structure of the culture bottle does not need to be opened in the whole sampling process, and the sampling efficiency is improved. And the original stable gas environment in the culture bottle is maintained.

The utility model discloses a dust sucking device for a laser etching nozzle, which relates to the technical field and comprises a supporting component, a workpiece and laser etching equipment, the supporting assembly comprises a box body, a boss fixedly arranged at the top end of the box body, a plurality of sets of suction holes formed in the box body, an inner cavity formed in the box body and an air suction pipe, wherein the pipe end of the air suction pipe fixedly penetrates into the box body and is communicated with the inner cavity. A workpiece is attached to the boss to be stably supported, the multiple sets of suction holes communicate with the interior of the inner cavity, the to-be-cut position of the workpiece is close to the suction holes, and the other end of the air suction pipe communicates with smoke suction equipment. The smoke suction device has the advantages that the smoke suction device is started in advance to sequentially generate suction force in the air suction pipe, the inner cavity and the suction hole, the generated smoke can directly enter the suction hole downwards to be sucked into the smoke suction device, the smoke direction is specifically sucked, the suction force is high, and the capacity that the smoke is not prone to making contact with workpiece products and polluting the workpiece products is improved; and the arranged positioning assembly is used for improving the workpiece placing efficiency and accuracy so as to improve the machining efficiency.

The invention relates to an electrical construction laser curtain wall system and a lens cleaning method thereof, and belongs to the technical field of electrical construction safety protection. The system comprises a laser module, a camera module and an alarm module. The laser module is used for forming a laser curtain wall in a construction area, and the camera module is used for capturing pedestrians passing through the laser curtain wall and starting the alarm module. The camera module comprises a controller and a camera, the camera is connected with the controller through a mounting seat, the mounting seat is rotationally connected with the controller, and the camera is rotationally embedded into a mounting groove of the mounting seat and is driven by a driving motor to rotate. A dust suction groove is formed in the inner wall of the mounting groove and communicates with the air extractor, and cleaning bristles are arranged in the dust suction groove and used for cleaning the lens surface of the camera. Through the arrangement of the dust suction groove and the cleaning bristles, dust on the surface of the lens can be effectively cleaned, the definition of image acquisition is ensured, and the monitoring accuracy of pedestrians entering a construction area by mistake is improved.

The invention relates to a building wall grinding tool and method capable of automatically collecting dust. The building wall grinding tool comprises a rack, a disc structure, a clamping structure and a grinding disc structure. When the grinding disc structure is used for grinding, dust can be evenly sucked to the upper position along the dust inlets in the bottoms of the clamping rods, flows along the channels of the clamping rods and is finally collected into the negative pressure equipment for collection, and the dust inlets are very close to the grinding edge position and are evenly formed in the peripheral area. And the purpose of quickly removing dust is achieved. Dust formed in the grinding process of the grinding disc structure can be sucked away along dust inlets formed in the bottoms of the multiple arranged clamping rods in the surrounding area, the sucked-away dust sequentially passes through the flexible connecting pipeline and the airflow connecting rod through channels in the clamping rods and then enters the dust suction equipment, and the dust suction equipment belongs to the prior art. No display is shown in the picture, and adsorption and collection can be completed only through communication of a flexible pipeline in actual use.

The invention discloses a child emergency treatment respiratory tract foreign matter rapid removing device, relates to the technical field of respiratory tract foreign matter removing, and aims to solve the technical problem that existing negative pressure suction equipment is too large in negative pressure and prone to directly adsorbing laryngeal mucosa to cause injury. Comprising a hose adaptively communicated with the input end of a negative pressure suction tube, a leakage connector, an annular groove, a removing mechanism, a collecting assembly and an angle adjusting assembly. By means of meshing or non-meshing switching of the transmission rod and the conveying cylinder, the two working states of lower cone rotating collection and upper cone sealing extraction of the guide sealing module can be flexibly adjusted and controlled, in the non-meshing state, the guide sealing module is in a lower cone shape and rotates with a gap reserved, throat mucus can be actively drawn in, and hard extrusion to the delicate throat is avoided; during meshing, the module moves upwards to be in a sealed upper cone shape, negative pressure extraction and spiral groove path optimization are matched, discomfort of the throat of a child caused by too high local negative pressure is prevented, high-viscosity mucus fracture can be avoided, and it is guaranteed that mucus is rapidly and thoroughly discharged.