33results about How to "Avoid personal harm" patented technology

The invention belongs to the technical field of nano materials, and particularly relates to a graphene oxide for electrochemical reduction and a preparation method of graphene. The method comprises the following steps: dissolving graphite oxide in deionized water, and carrying out ultrasonic peeling to obtain a graphene oxide solution; cleaning electrodes and a glass container; adding the graphene oxide solution into the glass container; connecting one end of a copper conductor with cathode and anode materials, putting the electrodes into the graphene oxide solution, and respectively connecting the other end of the copper conductor with positive and negative poles of a direct-current stabilized voltage supply; switching on the direct-current stabilized voltage supply, wherein the voltage is controlled at 10-50V, and the temperature is controlled at 25-90 DEG C; and carrying out electrochemical reduction for 1-60 minutes, thereby obtaining the graphene. The graphene prepared by the method provided by the invention has the advantages of high quality; and the method is simple to operate, and has the advantages of low cost, high safety, no pollution, high-efficiency and the like.

The invention discloses laser photoelectric fireworks and crackers. The laser photoelectric fireworks and crackers comprise a body and is characterized in that loudspeakers are arranged on the periphery of the body, a plurality of laser emission heads are evenly arranged at the top of the body, and laser emitters are arranged inside the laser emission heads; a volume regulating button, a distanceregulating button, a color regulating button, a sound imitation regulating button and a color system selecting module are arranged on the body. The laser photoelectric fireworks and crackers have theadvantages that various different fireworks forms are written into a program, the program is used to control the laser emitters to emit laser of different colors, different heights and different positons to form different patterns, and the forms and sounds of various fireworks are simulated; the simulated electronic fireworks and crackers can increase festive atmosphere and do not generate smoke and gunpowder smell, and pollution and burden to atmosphere and environments are avoided; in addition, personal injury caused by fire caused by the fireworks is avoided.

The invention discloses a positive pressure type breathing mask. The positive pressure type breathing mask comprises a mouth and nose cover. An air supply system which can supply air into a breathing cavity in the mouth and nose cover is arranged in the mouth and nose cover. The air supply system mainly comprises an air inlet connector, an air inlet valve and an air inlet valve opening device, wherein the outer end of the air inlet connector is connected with an air pump or a pipeline air source, and the inner end of the air inlet connector is connected with the air inlet of the air inlet valve. The air inlet valve is composed of a valve body, a valve element and a reset spring, wherein the valve element is movably arranged in the valve body, the valve element abuts against and seals the air outlet of the valve body through the reset spring, and the head of the valve element extends out of the valve body and enters the breathing cavity. The air inlet valve opening device pushes the valve element to contract inwards to make the air outlet of the valve body communicated with the breathing cavity only when the pressure in the breathing cavity is reduced. According to the positive pressure type breathing mask, air outside a severe environment is directly used as an air source, safety of the air source is ensured, the defects of an existing mask are effectively overcome, the positive pressure type breathing mask can be used in any environment, and the breathing safety of workers in the severe environment is ensured.

The invention discloses an automatic sorting method for construction waste. The automatic sorting method comprises the following steps that firstly, the construction waste is crushed into material blocks; secondly, ferromagnetic impurities and light waste materials are removed, and the material blocks are conveyed to a conveying plate of conveying equipment; thirdly, feature identification is carried out on the current material blocks to obtain identification data; fourthly, the identification data are compared with the pre-stored data, and the similarity value of the identification data and the pre-stored data is obtained; if the similarity value is greater than or equal to the threshold value, the fifth step is executed; and otherwise, the sixth step is executed; fifthly, a material guide gate of the conveying plate below the current material blocks is driven to open so that the material guide gate can leak the current materials downward and the third step can be executed; and sixthly, the current material blocks are continuously conveyed forward, and the third step is executed. By the adoption of the automatic sorting method for the construction waste, the construction waste canbe effectively identified and sorted, the automatic diversion of brick materials and concrete materials is effectively realized, the sorting efficiency is improved, the harm to workers is avoided, and the labor cost is reduced.

The invention relates to an oil gun, in particular to an oil gun with an oil and gas recovery structure. The oil gun comprises an oil and gas recovery oil gun and a mechanical gas and liquid ratio regulating valve, wherein an inlet of the oil and gas recovery oil gun is connected with the mechanical gas and liquid ratio regulating valve in a sealing manner, and both a gun barrel and a pull rod of the oil and gas recovery oil gun are communicated with a gas chamber; the inlet end of the mechanical gas and liquid ratio regulating valve is connected with a vacuum flow regulating valve in a sealing manner; the gun barrel is sleeved with a gas collecting hood in a sealing manner, an auxiliary valve is mounted in the gun barrel in a pressing manner, and the gas collecting hood is connected with a push rod mechanism; a gas returning pipe is arranged on the side face in the gun barrel, and a gas returning channel I communicated with the gas returning pipe is formed in a gun body on the outer side surface of the gun barrel. The oil gun has the advantages of being safe, environmental-friendly and energy-saved and is the necessary equipment of a secondary oil and gas recovery system and a vehicle-mounted oil and gas recovery system of a gasoline station.

The invention provides an electronic firework capable of projecting a display image. The electronic firework comprises a firework main body; the firework main body is provided with a loudspeaker; thetop part of the firework main body is evenly provided with a plurality of light ray emitters; the firework main body is further provided with an operating touch screen; a firework control system usedfor controlling the light color, the distance and the image of each light ray emitter is arranged in the firework main body; and the firework control system comprises an audio playing module, an imageprocessing image, a light ray control module, a display module, a distance control module, a storage module and a control processing module, wherein the audio playing module is used for simulating the different sounds of the firework or playing music; the image processing module is used for processing an image formed after laser emission; the light ray control module is used for controlling the color and the brightness of an emitted laser beam; the display module is used for displaying a projected pattern or subtitle; the distance control module is used for controlling the laser emission distance; the storage module is used for storing a preset scene, a preset sound effect and preset music, and thus, rapid selected operation is facilitated; and the control processing module is used for receiving an operating command, controlling the light ray emitters to perform projection, and controlling a firework launching effect through the operating touch screen.

The invention discloses a wire-twisting-preventing coiling device for an electrotechnical round aluminum rod. The wire-twisting-preventing coiling device comprises a working platform, a wire winding mechanism, an electrotechnical round aluminum rod coiled material, a coiling stepping mechanism, a coiling limiting mechanism, a coiled material push-out mechanism, an end supporting mechanism, a downward inserting mechanism and a downward clamping mechanism. The wire winding mechanism is arranged at one end of the working platform, andthe electrotechnical round aluminum rod coiled material is arranged on the wire winding mechanism. The coiling stepping mechanism is arranged below one end of the working platform, and the coiling limiting mechanism is arranged on the rear side wall of the working platform. The coiled material push-out mechanism and the end supporting mechanism are both arranged on the working platform. The downward inserting mechanism is arranged at the lower end of the endsupporting mechanism, and the downward clamping mechanism is arranged on the downward inserting mechanism. The wire twisting phenomenon occurring in the coiling process of the electrotechnical round aluminum rod can be avoided, the prepared coiled materials are convenient and orderly in appearance, packaging and transporting in the later period are facilitated, the coiling efficiency of the coiledmaterials is improved, the coiled materials with different lengths can be prepared according to needs, and the high practicability is achieved accordingly.

The present invention relates to a back-lighted type lighter safety lock. It is characterized by that a secret pin is set in the interior of machine head, said secret pin is a lever mechanism, the pivot of said lever is the pin shaft set on the machine head, the right arm of said lever is extended towards outer side wall of machine body, the left arm of said lever is extended into the machine head interior; on the top cover of said machine head a long hole is set along the sliding direction of machine head, the top cover of said machine head is covered by using an opening-closing knob, said opening-closing knob is slide-fit with the top cover of machine head, a starting bar is fixedly-placed in the bottom portion of said opening-closing knob, said starting bar is passed through long hole and is placed in the machine head interior, the bar end of said starting bar is used as drive end for driving left arm of said lever; on the pin shaft a torsion spring is set, the bottom end of said torsion spring is fastened on the right arm of lever, the upper end of said torsion spring is formed into 'V'-shaped elastic structure. Said invention also provided the working principle of said back-lighted type lighter safety lock and its concrete operation method.

The invention discloses a glass product automatic notching machine. The glass product automatic notching machine structurally comprises a working frame, a motor, a transmission protective cover, a cutting component, an object placing plate, a glass splinter recovery device and a control panel, wherein the motor is arranged on the left wall of the inner lower part of the working frame and is connected to the left wall through a bolt; the transmission protective cover is arranged at the left side of the upper surface of the working frame and is connected to the left side rotatably and movably through the bolt; the left end of the cutting component is connected to the motor through the transmission protective cover; the glass splinter recovery device is arranged at the right side of the innerupper wall of the working frame, is located below the object placing plate and is connected to the working frame by electric soldering; and the control panel is arranged at the right side of the object placing plate and is connected to the right end of the object placing plate by electric soldering. When the glass product automatic notching machine works, the glass product automatic notching machine can collect glass splinters generated in work automatically and centrally through the arranged glass splinter recovery device so as to prevent the glass splinters from doing harm to operating personnel, causes the glass splinters to be used again and avoids the wasting of resources.

A bathroom safety protection vehicle for removing surface accumulated water, disclosed in the invention, and comprises a vehicle body, a working cavity with a downward opening is formed in the vehicle body, a belt cavity is formed in the right side of the working cavity, a motor is arranged in the right wall of the belt cavity, and the left end of the motor is in power connection with a motor shaft; and the motor shaft is rotatably connected between the belt cavity and the working cavity in a leftward through manner. The vehicle is used in bathrooms in various occasions and serves as safety protection to avoid personal injury caused by wet and slippery ground, the vehicle advances on the ground, when water is accumulated on the ground, a towel can be automatically and flatly laid on the ground to suck the accumulated water dry, sewage is discharged and collected by squeezing the towel after water absorption, and then the action is repeated, so that the device can continuously remove accumulated water in the bathroom, time and labor are saved, and convenience and rapidness are achieved.

The invention discloses a fan supporting rod collapse monitoring method and device. The method comprises the steps of presetting a collapse and vibration signal judgment mechanism; acquiring vibrationsignals acquired by vibration acquisition devices arranged in a plurality of areas on the support rod, wherein the areas are divided according to the height of the support rod; processing the acquired vibration signals through the judgment mechanism, and judging the collapse condition of the supporting rod; according to the method and the device, the vibration acquisition devices are distributedto acquire the vibration signals of different height areas on the supporting rod, collapse analysis is automatically performed based on a judgment mechanism to obtain a judgment result of the collapsecondition, early warning is timely sent to inform workers to take maintenance measures in time, economic losses are reduced, and personal injury caused by collapse of the fan supporting rod is effectively avoided.

The invention relates to a temperature data management and control method and device based on a block chain and a storage medium. The method comprises the steps of obtaining temperature data of a detection object; obtaining a private key corresponding to the detection object; signing the temperature data by using a private key of the detection object to obtain signature information; binding the signature information and the temperature data, and uploading the bound signature information and temperature data to a block chain. The temperature privacy data of the user is strictly controlled in the temperature detection process, safety and reliability are achieved, and the situation that the temperature privacy data of the user is directly exposed to cause trouble and personal harm to the usercan be prevented.

The invention provides a self-cleaning dustproof blackboard eraser. The self-cleaning dustproof blackboard eraser comprises a shell. A water seepage plate is arranged in the middle of an inner cavityof the shell. A board wiping cotton mounting groove for mounting board wiping cotton is formed in the portion, at the front of the water seepage plate, of the inner cavity of the shell. The portion, at the rear of the water seepage plate, of the inner cavity of the shell is divided into a cleaning water cavity for cleaning the board wiping cotton and a water seepage cavity for infiltrating water into the board wiping cotton so as to avoid dust when the blackboard eraser is used for wiping. According to the self-cleaning dustproof blackboard eraser, the chalk dust can be well prevented from flying, the classroom environment pollution can be avoided, and personal hazards caused by dust inhalation can be avoided; and the structure for cleaning the board wiping cotton is arranged on a blackboard eraser body, so that the board wiping cotton is convenient to clean, and the board wiping cotton is kept clear and clean.

The invention relates to a granule containing indole butyric acid and lentinan. The granule comprises the following components in parts by weight: a phase A component: 60-95 parts by weight of a granule carrier; a B-phase component: pesticide active ingredient mother powder, wherein the pesticide active ingredient mother powder comprises two components, one component is 0.1-10 parts by weight of indole butyric acid, and the other component is 0.1-1 part by weight of lentinan; and a phase C component: 1-30 parts by weight of functional slurry. Indole butyric acid and lentinan are matched to prepare the indole butyric acid and lentinan combined granule, crop virus diseases are mainly represented as the symptoms of shrinking, dwarfing, yellowing and the like of newly born leaves at the top ends of plants, lentinan has good plant virus resisting activity, meanwhile, lentinan serves as a sugar source to activate the plant nutrition transfer process, indole butyric acid is helped to be transmitted upwards and is transmitted to the apical growth part of a plant, apical growth is stimulated, and the obvious control effect on crop virus diseases is achieved.

The invention discloses LED (Light-Emitting Diode) artificial teeth, which comprise an induction coil, an LED luminous chip, artificial teeth, teeth and a gum, and is characterized in that: the induction coil is connected in series with the LED luminous chip, and is attached to the inside of the teeth; the induction oil is a radiofrequency IC (Integrated Circuit) card induction coil; and the artificial teeth consist of the teeth and the gum. The LED artificial teeth have the advantages that: environmental pollution and personal injuries caused by the use of a button cell can be avoided; and the LED artificial teeth have a simple structure and a unique luminous effect, and are convenient to manufacture.

The invention relates to an afforestation tool for a region of a difficult-site type. The afforestation tool comprises a handle, a nursery-grown plant root pitting device, a digging device and a locating device, wherein the two ends of the handle separately comprise a first end and a second end, the nursery-grown plant root pitting device is detachably connected to the first end of the handle, and the middle part of the digging device is rotatably connected to the second end of the handle; and the locating device is mounted on the handle and is used for locating the digging device when the digging device is rotated to a preset position. According to the afforestation tool, the nursery-grown plant root pitting device and the digging device are separately arranged at the two ends of the handle, so that the afforestation tool has a pitting function and also has a digging function, the digging of nursery-grown plant planting platforms and planting holes in slopes of arsenic rock is facilitated, and the survival rate and working efficiency of afforestation are increased.