19results about How to "Cause harm" patented technology

The utility model discloses a device for detecting the bending strength of an automobile part, and relates to the technical field of automobile production and manufacturing. Comprising a workbench, fixing mechanisms are arranged on the two sides of the top of the workbench, each fixing mechanism comprises a bottom plate, a supporting plate is fixedly connected to one side of each bottom plate, a through hole is formed in one side of the top of each supporting plate in a penetrating mode, a connecting shaft is rotationally connected into each through hole, and a pressure applying detection mechanism is arranged on one side of the top of the workbench. The pressure applying detection mechanism comprises a mounting plate, and one side of the top of the mounting plate is fixedly connected with a supporting frame. In the use process, a workpiece to be detected is placed on the bottom plate, then the rotating disc is manually rotated to enable one end of the screw rod to abut against the workpiece to be detected, and then the workpiece is clamped and fixed by the extrusion plate, so that unnecessary movement or deformation of a tested automobile part in the test process is avoided, the workpiece is prevented from slipping and flying out, and the test efficiency is improved. The detection worker is harmed, and the detection safety is influenced.

The invention relates to the field of potato planting, in particular to a preparation method of a safe seed dressing agent for seed potatoes and a seed dressing method.The potato seed dressing agent is prepared by mixing a calcium magnesium phosphate fertilizer, 50% carbendazim wettable powder, 3% Zhongshengmycin wettable powder, 80% mancozeb wettable powder and a slow release component, and the seed potatoes are cut into blocks for seed dressing. The method can safely and efficiently prevent and treat diseases such as soft rot, bacterial wilt and wilt of potatoes, reduces the rotting rate of potato blocks, improves the emergence rate, yield and quality of potatoes, and is simple to operate, easy to master and suitable for large-scale popularization and application.

The application discloses a method for establishing end-to-end secure communication of unmanned aerial vehicle under cloud network architecture, and takes cloud server as a security service center to provide full-process authentication service for unmanned aerial vehicle end system; the cloud server only issues public authentication materials to unmanned aerial vehicles, and session key negotiation and establishment of end-to-end secure communication are realized between unmanned aerial vehicles; the unmanned aerial vehicle end system does not need to store authentication materials of other unmanned aerial vehicles in advance, the cloud server is driven by specific tasks, and specific authentication materials required for key negotiation are issued to unmanned aerial vehicles which need to be securely cooperated according to task requirements. The application only requires that the cloud server and any one of the unmanned aerial vehicles for key negotiation establish a communication connection, and the authentication materials issued by the cloud server can make the unmanned aerial vehicles realize key negotiation and establish an end-to-end secure channel in a specific range; different temporary public keys are used for each request message, which can effectively prevent the harm caused by long-term and short-term secret leakage.

The invention provides a device suitable for natural gas sampling detection, and relates to the technical field of natural gas detection devices.The device comprises a gas inlet pipe, a gas inlet connector, a first gas conveying pipeline, a sampling detection mechanism, a second gas conveying pipeline, a coarse filter, a gas outlet pipe and a gas outlet connector, and a gas outlet of the gas inlet pipe communicates with a gas inlet of the first gas conveying pipeline through the gas inlet connector; a gas outlet of the first gas pipeline is communicated with the sampling detection mechanism, a gas inlet of the second gas pipeline is communicated with the sampling detection mechanism, a gas outlet of the second gas pipeline is communicated with a gas inlet of the coarse filter, and a gas inlet of the gas outlet pipe is communicated with a gas outlet of the coarse filter through a gas outlet joint. The sampling detection mechanism arranged on the gas pipeline can avoid manual sampling needed in detection, the concentration, pressure and flow of natural gas can be more efficiently and accurately detected in real time, the device can ensure the accuracy and safety of natural gas sampling, and the efficiency of natural gas sampling is improved.

The invention relates to a preparation method of impermeable moisture-retaining cigarette paper and a product thereof, and the preparation method comprises the following steps: firstly, carrying out plasma treatment on the inner surface of basic cigarette paper, and activating the inner surface of the cigarette paper; and depositing an inorganic film barrier layer on the inner surface of the basic cigarette paper in an atomic layer deposition manner to obtain the anti-permeation moisture-retaining cigarette paper, wherein the inner surface of the basic cigarette paper is in contact with tobacco shreds. A compact oxide inorganic film barrier layer is creatively formed on the inner surface of the cigarette paper in an atomic layer deposition mode, no adhesive needs to be added, good uniformity and shape retention are achieved, and good water retention and permeation prevention effects can be achieved only by depositing a thin barrier layer; and when the cigarette is ignited, the deposited barrier coating does not participate in fiber combustion in the cigarette paper and can be left on the surface of cigarette ash, so that the harm to a human body is avoided.

The application discloses a kind of based on inflation plate's spray type liquid cooling battery energy storage cabinet and control method, including energy storage cabinet cabinet and heat management module, the battery pack containing electric core is placed in the energy storage cabinet cabinet inside, spray cooling module, fire-fighting module, control module and energy storage converter module;It also discloses a kind of control method simultaneously, so that electric core works at optimum temperature, guarantees electric core safety, prolongs electric core life;Adopt spray liquid cooling mode, contact thermal resistance is lower, surface temperature uniformity is better;Each module is using module integration design, space structure is compact, installation mode is simple, flexibility is high, adapts to different size energy storage battery pack.

The invention discloses an environment-friendly cable material with high flame retardant property and a preparation method thereof, and the environment-friendly cable material with high flame retardant property comprises the following components by mass: 50-60 parts of polyvinyl chloride resin; 15-25 parts of an environment-friendly plasticizer; 3-7 parts of a flame retardant; 10 to 20 parts of a lubricant; 0.5 to 1.5 parts of an antioxidant; 2-4 parts of a stabilizer; 1-5 parts of an anti-ultraviolet agent; aluminum hydroxide micro powder is adopted as a flame retardant, aluminum hydroxide absorbs a large amount of heat and reduces the surface temperature of the material when being heated and decomposed, meanwhile, water vapor and non-combustible gas generated by decomposition can dilute the concentration of combustible gas and weaken the combustion reaction, and aluminum oxide generated by decomposition covers the surface of the material to isolate oxygen from being in contact with combustible substances; therefore, the flame-retardant and smoke-suppression effects are achieved, fire disasters can be effectively prevented, and fire hazard hazards are reduced. All the raw materials meet the environment-friendly requirement, are environment-friendly and pollution-free, do not cause harm to the environment and are good in environment-friendly performance.

The application relates to the field of agricultural spraying machines, and discloses an agricultural spraying machine with a solar photovoltaic structure and a working method thereof, which comprises a base, two supporting rods, a movable box, a water storage bucket, a first water pump, a spraying pipe, two spray heads, four moving wheels, a rotating motor, an air pipe, a fan, an activated carbon adsorption plate, a sterilization layer, a photovoltaic panel and a cleaning brush. The two sides of the movable box are rotationally connected with the upper ends of the two supporting rods respectively, and the axis of the air pipe is arranged along the inclined direction of the movable box. The fan, the movable box, the cleaning brush and the photovoltaic panel are arranged, so that the spraying of the spraying machine is more uniform; the dust on the surface of the photovoltaic panel is cleaned by the cleaning brush, so that the power generation efficiency of the photovoltaic panel is improved; the airflow sprayed from the air pipe protects the whole body of a user, keeps the air inhaled by the user clean, and thus protects the health of the user.

This application provides a graphene-PBAT composite aerogel and its preparation method, belonging to the fields of biodegradable materials and aerogel technology. The method includes the following steps: preparing a graphene oxide dispersion; adding an amphoteric surfactant to the graphene oxide dispersion, stirring until homogeneous, filtering, washing, and freeze-drying to obtain modified graphene oxide; using 1,4-dioxane as a solvent to completely dissolve PBAT in 1,4-dioxane to obtain a PBAT solution; adding the modified graphene oxide to the PBAT solution and ultrasonically dispersing until homogeneous for liquid-phase composite formation; after liquid-phase composite formation, adding deionized water, stirring until homogeneous, pouring into a mold, pre-freezing, and then freeze-drying. The composite aerogel of this application has characteristics such as high specific surface area, large porosity, and low density; the composite with modified graphene enhances the mechanical properties of PBAT, improving the problems of low strength, poor weather resistance, and low modulus of PBAT, thus enabling the final composite aerogel to have a wider range of applications.

This utility model discloses a waste gas treatment device for the production of ferrite cores, relating to the field of waste gas treatment device design technology. It includes a fixed support plate, an impurity adsorption unit, and a waste gas purification body. A stable support leg is fixedly connected to each of the four corners of the lower surface of the fixed support plate. An impurity adsorption unit is provided on the upper surface of the fixed support plate, and the four corners of the fixed support plate are chamfered. The waste gas purification body includes a waste gas purification tower, a partition plate, a spray head, a water pump, a limiting plate, and a purification filter element. A waste gas purification tower is fixedly connected to the upper surface of the fixed support plate at the right side of the impurity adsorption unit. This device can treat the waste gas generated during the production of ferrite cores, preventing environmental pollution and minimizing harm to humans. The filter element is also easy to replace.

The invention relates to a special welding die for an arc-shaped metal plate, and belongs to the field of metal material welding. The device comprises a base (1), a side panel (2), a supporting cylinder (3), a lower partition plate (4), an upper partition plate (5), an arc-shaped clamping plate (6), a pressing plate (7) and a bolt (8). The number of the side panels (2) is two, the two side panels (2) are fixed to the left end and the right end of the base (1) respectively, a plurality of grooves are downwards formed in the top of each side panel (2), four through holes are symmetrically formed in each side panel (2), an arc-shaped clamping plate (6) is arranged between the two side panels (2), and the bottoms of the two arc-shaped clamping plates (6) are fixed to the base (1). By reasonably designing the size and the shape of the die, the arc-shaped part of the workpiece can be tightly attached to the shape of the die, the upper groove iron sinks in the die, the workpiece is kept stable in the whole welding process, the workpiece does not shake or relatively displace, the good positioning effect is achieved, and the welding precision is effectively guaranteed.

The application discloses a kind of real fly luring and killing agents.The real fly luring and killing agent is composed of the following components by mass percentage: 75-85% of apple snail meat hydrolysate, 3-7% of pest toxic components, 5-15% of auxiliary materials and 2-5% of stabilizers.The apple snail meat hydrolysate is a mixture of apple snail meat after protease hydrolysis and enzyme inactivation, and the pest toxic components are Metarhizium or Beauveria.The luring and killing agent uses the protein hydrolysate of invasive species apple snail meat as the main raw material to prepare food lure, and then adds a small amount of Metarhizium / Beauveria to prepare the luring and killing agent.The synergistic effect of food lure and Metarhizium / Beauveria significantly improves the luring and killing effect on real flies.The new real fly luring and killing agent has the characteristics of high efficiency and green environmental protection.

The invention relates to the technical field of pesticide detection, and discloses a non-contact isolation sampling pesticide component detection device. The detection device comprises a fixed plate, a blade, an insertion rod, a mounting rail, a movable screw rod, a sampling mechanism and a guide hopper. The fixing plate is provided with a mounting plate, and the mounting plate is connected with the box body through a telescopic mechanism. And the two blades are respectively fixed on the fixed plate and the mounting plate. The two inserting rods are arranged on the fixing plate. The two mounting rails are symmetrically arranged on the upper side of the fixing plate. And the movable screw rod is embedded in the box body and is screwed with the sliding block on the mounting rail through a thread. The sampling mechanism is arranged on one side of the top wall of the box body, and a cleaning mechanism is arranged on one side of the sampling mechanism; the guide hopper is arranged on the lower side in the box body, and the lower side of the guide hopper is suspended on the upper side of the detection equipment. According to the invention, the operation process of early-stage treatment of agricultural product samples is simplified, manual sampling, soaking and detection are not needed, harm to detection personnel is avoided, and the environment is not polluted.

The utility model discloses a paint spraying device for mechanical casting, which belongs to the technical field of paint spraying for mechanical casting, and adopts the technical scheme that the paint spraying device comprises a spraying mechanism and a dismounting mechanism, the dismounting mechanism is bolted at the top of the spraying mechanism, the spraying mechanism comprises a storage box, a transfer pump, a nozzle and an outer frame, and the dismounting mechanism comprises a fixing assembly and an adsorption assembly. By arranging the spraying mechanism and the dismounting mechanism, a storage box can store paint for paint spraying and fix a transfer pump, and the transfer pump can pump the paint in the storage box into a spray head, so that the spray head can spray the paint to the surface of a casting, an outer frame can fix the spray head, and the spray head can be conveniently detached. According to the paint spraying device, paint spraying can be conducted, paint smell generated by paint spraying can be prevented from leaking, the fixing assembly can be fixed, the fixing assembly can extract the paint smell in the outer frame and fix and limit the adsorption assembly, the adsorption assembly can adsorb and filter the paint smell pumped by the fixing assembly, and the paint smell is prevented from being inhaled into the body of a user.

The invention relates to a seed coating for increasing calcium content in peanuts and application thereof, the coating comprises a calcium fertilizer, a film forming substance, a synergist and a dispersant, the raw materials comprise, by mass, 1-3 parts of the calcium fertilizer, 0.1-0.3 part of the synergist, 0.03-0.06 part of the dispersant, and 2-4 parts of the film forming substance. By coating the peanut seeds, the content of endogenous calcium in the peanuts is enhanced, and the requirement of the peanuts for calcium in the early growth stage is reduced, so that cadmium entering peanut bodies through root calcium ion channels is reduced, and the content of cadmium in harvested peanut seeds is reduced. Field trials prove that the cadmium content in the harvested peanuts can be reduced by about 39% when the coated seeds are sown in the acid cadmium-polluted soil; the method is easy and convenient to operate and low in cost, overcomes the defects of the traditional complex cadmium reduction technology of applying a passivating agent to the soil and the like in the field, is not prone to causing the soil environment risk, has the good peanut cadmium reduction rate and is suitable for large-area application and popularization.

The application provides a biomarker group for detecting colorectal cancer, comprising AREG gene and ZKSCAN3 gene. The application also provides application of a reagent for detecting expression levels of AREG gene and ZKSCAN3 gene in preparation of a product for detecting colorectal cancer. The application further provides a product for detecting colorectal cancer, comprising a reagent for detecting expression levels of AREG gene and ZKSCAN3 gene. The biomarker group of the application has the advantages of high sensitivity, high specificity and high accuracy, and is especially suitable for detecting early colorectal cancer.

The present application discloses a sample management method, which is applied to a storage device, including: when the sample to be stored is transported to the transmission port of the storage device by a robot, the target storage container is pushed to the transmission port according to the first storage position information obtained in advance, so that the robot transfers the sample to be stored to the target storage container; the target storage container containing the sample to be stored is placed in the initial placement position in the storage device; the sample to be stored is stored and the transmission port door is locked. When the robot transports the sample to be stored to the transmission port, the storage device pushes the target storage container to the transmission port according to the first storage position information of the sample to be stored, the robot transfers the sample to be stored to the target storage container, the storage device then places the target storage container in the initial placement position in the storage device for storage, and locks the transmission port door, so that there is no need to manually put the sample to be stored into the storage device, which avoids harm to the management personnel, and the storage device is automatically locked, which has high security.

This utility model relates to the field of slope protection technology, specifically a prefabricated flexible shaped slope protection system applied to temporary slope support of foundation pits. It includes a soil slope body, with a protective slope protection body abutting its upper surface. A fixing and shielding mechanism is provided within both the soil slope body and the slope protection body. The shielding mechanism includes soil nails for positioning, which penetrate and are inserted into the slope protection body. The top of each soil nail abuts against a protective cover, and a clamp for holding the soil nail is located below the cover. This prefabricated flexible shaped slope protection system for temporary slope support of foundation pits is assembled by inserting soil nails through the slope protection body into the soil slope body, binding multiple sets of soil nails together with steel wire ropes to form a mesh, and then attaching the slope protection body to the surface of the soil slope body. A ring plate is inserted at the top of the soil nail and tightened securely to prevent the top of the soil nail from protruding and causing damage.

The invention discloses flame-retardant gel based on hydroxyethyl cellulose and sodium alginate as well as a preparation method and application of the flame-retardant gel, and belongs to the technical field of fire prevention and extinguishing materials for coal mines. The preparation method of the flame-retardant gel comprises the following steps: adding hydroxyethyl cellulose, acrylic acid, acrylamide and an initiator into an alkaline solution at 0-5 DEG C, and carrying out a polymerization reaction to obtain hydroxyethyl cellulose network gel; adding a solution containing Al < 3 + > into the sodium alginate solution, and cross-linking to obtain sodium alginate network gel; the preparation method comprises the following steps: mixing hydroxyethyl cellulose network gel, sodium alginate network gel and sodium bentonite, carrying out heat preservation at 48-52 DEG C to form the mixture, and soaking the formed mixture in a solution containing Al < 3 + > to obtain the flame-retardant gel based on hydroxyethyl cellulose and sodium alginate. By constructing a hydroxyethyl cellulose-sodium alginate double-network structure and combining the synergistic effect of the sodium bentonite, the synergistic improvement of the plugging performance, the water retention performance and the flame retardant performance of the composite gel is realized.