44results about How to "Affect physical and mental health" patented technology

The embodiment of the invention discloses a screen locking method and device, a terminal and a memory medium. The method comprises the steps of obtaining a target face image of a current user when a screen is in a bright screen state; matching the target face image with a pre-stored child face image, and determining a target identity of the current user; obtaining current distance between the current user and the screen if the target identity is a child identity, and recording current bright screen duration; and carrying out black screen locking on the screen if it is detected that the currentdistance or the current bright screen duration satisfies a screen locking condition. According to the technical scheme provided by the embodiment of the invention, watching distance and watching duration of a child can be automatically controlled, so physical and psychological health of the child is prevented from being influenced due to long-time near distance watching is avoided.

The invention relates to a carriage carbon dioxide concentration control system and a control method. The compartment carbon dioxide concentration control system comprises a control unit, a carbon dioxide monitoring unit, an alarm unit and an air conditioner control unit. The control unit can monitor a start-stop state of a vehicle engine, a first carbon dioxide concentration threshold value and asecond carbon dioxide concentration threshold value are preset in a carbon dioxide concentration monitoring unit, and the carbon dioxide monitoring unit can output corresponding monitoring signals due to a fact that a monitored carbon dioxide concentration is matched with different carbon dioxide concentration threshold values. According to the carriage carbon dioxide concentration control system, when the monitored carbon dioxide concentration is matched with the first carbon dioxide concentration threshold value and the second carbon dioxide concentration threshold value, the correspondingmonitoring signals are output to the alarm unit and the air conditioner control unit respectively so that dual functions of manual control and automatic control can be fully played, and a control effect on the concentration of carbon dioxide in a carriage can be improved.

The invention provides a range hood with multi-smoke vent and a top suction type range hood, and belongs to the technical field of range hoods. The range hood with multi-smoke vent at least comprisesa shell device, a bottom exhausting device and a side exhausting device, wherein the side exhausting device is arranged on at least one side of the shell device and can be opened or closed relative tothe shell device; when the side exhausting device is opened, the side exhausting device is matched with the bottom exhausting device to suck the smoke into the shell device and then exhaust; when theside exhausting device is closed, the side exhausting device can be folded into the shell device. The top suction type range hood comprises the range hood with the multi-smoke vent. The invention solves the problem of worse smoke sucking effect caused by the fact that fume generated by cookware does not correspond to the smoke vent in the prior art.

The invention discloses a photocatalytic air purification device capable of modularly replacing a filter element, which relates to the technical field of air purification devices. The photocatalytic air purification device comprises a purification machine body, a containing groove is formed in one side of the purification machine body, a filter element inserting groove is formed in the inner wall of one side of the containing groove, a splicing frame is arranged in the filter element inserting groove, a fixing frame is arranged in the splicing frame, a photocatalytic filter screen is fixedly connected to the inner wall of the fixing frame, fixing baffles are fixedly connected to the four inner walls of the fixing frame, and the four fixing baffles make contact with the fixing frame locally. When the filter element module is replaced, the clamping rod can be inserted into the clamping groove to drive the two pieces of protective cloth to cover the two sides of the splicing frame respectively, so that the splicing frame is coated, and the situation that when the filter element module is taken out, dirt, harmful substances and the like accumulated on the photocatalytic filter screen fall off or drift away to pollute the purifier and the surrounding environment, and the physical and psychological health of the user is influenced can be prevented.

The invention discloses an intelligent multimedia teaching video rebroadcasting system based on 5G. The system comprises the following parts of a 5G base station data transmission end, a teaching video acquisition end, a rebroadcasting server, and a teaching video receiving terminal; the 5G base station data transmission end is used for data transmission work between the teaching video acquisitionend and the rebroadcasting server; the teaching video acquisition end is used for acquiring video, voice and interaction data in the teaching process and transmitting the data to the rebroadcasting server for processing; and the rebroadcasting server is used for receiving the data sent by the teaching video acquisition end, checking the data and then sending the data to the teaching video receiving terminal. According to the system and the method, when students do not clearly see projections or teaching aids in the teaching process, a mobile phone terminal can control a camera to carry out positioning photographing on the projections or the teaching aids, and thus knowledge points in the teaching process are prevented from being missed; and voices and characters against the rule are processed, so that the situation that students receive this kind of information, and thus physical and psychological health is influenced is avoided.

The invention discloses a plastic garbage crushing device. The plastic garbage crushing device comprises four sections, wherein shells of the four sections are sequentially connected. The first section comprises a feeding channel provided with an extrusion roller and a first cavity provided with coarse and fine crushing rollers. The second section comprises a second cavity, a shaft barrel, spiralblades wound outside the shaft barrel and a first motor, wherein the shaft barrel is suspended and rotatably installed in the second cavity, and the rotation of the shaft barrel is driven by the firstmotor. The third section comprises a third cavity, a first crushing cutter and a second crushing cutter, wherein a plurality of arc-shaped openings are formed in two sides of the third cavity, and slicers on the first crushing cutter and the second crushing cutter can be cut into the arc-shaped openings to cut and crush plastic. The fourth section comprises a fourth cavity and a final crushing roller positioned in the fourth cavity, wherein the wall surface of the lower side of the fourth cavity is a mesh wall surface. The wall surfaces at the bottoms of the first cavity and the second cavityare both hole-type wall surfaces allowing water to penetrate through. On the one hand, plastic garbage can be crushed into extremely small particles, and on the other hand, the liquid in the plasticgarbage can be separated.

The invention discloses a prefabricated building wall with thermal insulation function, which comprises a foundation wall, the outer surface of the foundation wall is connected with a keel, and the outer surface of the keel is installed with a building decoration wall. The prefabricated building wall with thermal insulation function, through the cooperation between the foundation wall, the keel and the building decoration wall, first attach the glass magnesium board to the outer surface of the keel, and use bolts to thread the glass magnesium board and the keel. , place the insulation layer and the sound insulation layer inside the groove in turn, cover the outer surface of the glass magnesium board with the decorative board, and insert the expansion tube into the round groove to run through the decorative board, sound insulation layer, and insulation layer in turn And the glass magnesium board, and then use screws to insert into the inside of the expansion tube for threaded connection, so that the decorative board and the glass magnesium board can be docked and installed, during which there is no need to use glue for bonding operations, so as to avoid irritating smell, energy saving and environmental protection.

The invention discloses a sludge treatment device for ecological environmental protection, which belongs to the technical field of environmental protection. The sludge treatment device comprises a storage device, a vibration device, a pushing device, a conveying belt, a drying device, an overturning device, a degassing device and a stirring device, wherein a storage box is vertically mounted on the ground, the vibration device is horizontally mounted in the storage device, the pushing device is fixedly mounted on the side wall of the storage device, the conveying belt is horizontally mounted on the ground, the drying device is fixedly mounted at the top of the conveying belt, the overturning device is mounted on the conveying belt, the degassing device is vertically mounted on the ground, and the stirring device is vertically mounted on the ground. Thesludge is turned over through rotating movement of four rotating blades, the phenomenon that the bottomsludge can not be dried to influence subsequent use is prevented; the air pump drives the air suction pipe to convey air into the air inlet pipe from the air suction head, and the air pump drives the air inlet pipe to convey the air into the air box to be stored.

Vehicle-mounted movable multifunctional weight hosting equipment comprises a left driving shaft, a main driving shaft and a right driving shaft, wherein the left driving shaft, the main driving shaft and the right driving shaft are arranged from left to right in sequence and located on the same center line. A cutting disc and a grinding wheel are coaxially and fixedly arranged on the left driving shaft. A hoisting roller is coaxially and fixedly arranged on the right driving shaft, and a hoisting rope is wound on the hoisting roller. A hoisting space frame is fixedly arranged on the left side of the top of an upper frame, and a telescopic hydraulic lazy arm which is horizontally telescopic in the left-right direction is arranged at the top of the hoisting space frame. Hydraulic drive type clutches are arranged between one end of the main driving shaft and the left driving shaft as well as between the other end of the main driving shaft and the right driving shaft correspondingly. According to the vehicle-mounted movable multifunctional weight hosting equipment, devices which are frequently used for building construction such as hoisting, cutting, polishing and the like are integrated, and the structure is compact; one power source is used for conversion through the clutches, the cost is reduced, and the flexibility is high; the hoisting equipment can be moved to any places of a construction field according to requirements, and thus the labor intensity of workers is relieved; and hoisting, cutting and polishing can be conducted separately, and thus maintenance and management in the later stage are facilitated.

The invention relates to the technical field of medical auxiliary instruments, in particular to a gas filtering device for an operating room, the gas filtering device comprises a mounting box, a guide pipe connected to the mounting box and a mask mounted on the guide pipe, a branch pipe is fixedly connected to one end, close to the mounting box, of the guide pipe and is connected with an anesthesia respirator, and a one-way valve is arranged on the branch pipe; a gas pressure meter is fixedly installed at the end, close to the mask, of the guide pipe, a hook is fixedly installed on one side of the mounting box, and a suction assembly, a filtering assembly, a sterilization assembly and a ventilation assembly are installed in the mounting box. The gas filtering device is used for solving the problems that the existing gas filtering device for the operating room cannot completely filter anesthetic gas in the operating room, medical staff still inhale a small amount of anesthetic gas, and physical and psychological health is affected.

The invention discloses a clean glass column circular head grinding device. The device comprises a frame; the frame is correspondingly provided with a fixing module and a grinding module; a driving module for driving the fixing module to perform a reciprocating motion is arranged in the frame; the grinding module includes a groove formed in the frame; a through groove is formed in the center of the groove; a bearing is arranged in the through groove, and is coaxially provided with a vertical rotating shaft; the rotating shaft is coaxially provided with a rotating disc; the rotating disc is arranged at the upper part of a bearing; a fixed disc is arranged at the upper part of the rotating disc; a grinding wheel is horizontally arranged at the top end of the rotating shaft; a first motor is coaxially arranged at the lower part of the rotating shaft; two circles of arc grooves are downwards formed in the bottom of the groove; the arc grooves are arranged at equal intervals; an annular pipe is arranged at the lower parts of the arc grooves in the frame; a collecting box is arranged at the lower part of the annular pipe; a negative-pressure fan is arranged at the bottoms of the arc grooves; and the negative-pressure fan is arranged in the annular pipe. The clean glass column circular head grinding device has such advantages as simple structure, convenience for use and low cost.

The invention discloses crushing equipment for a decoration material. The crushing equipment structurally comprises a base, a main body, a feeding mechanism, a baffle plate, an upper cover, a conveying pipe, a discharging mechanism, a silencer, an efficient and energy-saving motor and a foundation bed, wherein the top surface of the left side of the base is fixedly connected with the bottom surface of the main body; the main body and the base are vertical to each other; the top of the main body is mechanically connected with the upper cover; the left and right sides of the front surface of the upper cover are connected with the feeding mechanism through bolts respectively; the baffle plate is located at the top of the feeding mechanism and is connected with the top end of the front surface of the upper cover through a hinge; and the right side of the back surface of the upper cover is connected with the discharging mechanism through the conveying pipe. The crushing equipment for the decoration material, disclosed by the invention, has the beneficial effects that the crushing equipment is provided with the silencer, can be used for reducing noises in a decoration material crushing process and has a dust filtering function, so that a condition that physical and mental health of workers is influenced by noise pollution can be avoided and the hearing of the workers is not influenced; and inconvenience, caused by noises, to daily life of users around the crushing equipment is avoided.

The invention belongs to the technical field of sheet processing and particularly discloses a plate cutting device, including a workbench, a tool rack and a rack. The workbench is located right belowthe tool rack. The tool rack is a rectangular structure. The four sides of the bottom of the tool rack are provided with cutting tools. A driving mechanism used for driving the cutting tools to move up and down is arranged on the tool rack. Grooves are arranged on the workbench. The bottom of the groove is provided with through holes. One side of the groove is communicated with a channel running through the bottom of the workbench. One end of the channel is connected with an air supply device. The interior of the workbench is provided with a cavity. A clapboard is arranged in the cavity. The clapboard is connected with a toggle switch in hinge. The toggle switch includes an active plate and a driven plate. The active plate is fixedly connected with the driven plate. The active plate is inserted into the through holes. A push rod capable of driving the active plate to move downward is arranged on the tool rack. The length of the push rod is longer than the length of the cutting tool. The driven plate is inserted into the channel. The driven plate is connected with a spring. The adoption of the plate cutting device can improve the production efficiency of the plate, the processing quality of the plate and the service life of the device, and protect workers' physical and mental health.