12results about How to "Avoid direct destruction" patented technology

The utility model provides a prefabricated hanging plate for pouring type asphalt concrete, and relates to the technical field of reservoir danger removing and reinforcing engineering, the prefabricated hanging plate comprises a concrete plate and structural steel bars arranged on the concrete plate, the structural steel bars are arranged on the concrete plate, and the dam body connecting ends of the structural steel bars extend out of the concrete plate to be connected with a reservoir dam body; the concrete slabs are fixedly assembled through the structural steel bars so that casting gaps can be formed between the concrete slabs and the reservoir dam body, the multiple concrete slabs are fixedly assembled through the structural steel bars to form a wall plate matched with the upstream face of the reservoir dam body, the multiple casting gaps between the wall plate and the reservoir dam body form an asphalt concrete pouring area, and asphalt concrete is poured into the asphalt concrete pouring area. Therefore, construction procedures are reduced, construction efficiency is improved, and construction cost is saved. And the concrete prefabricated hanging plate and the poured asphalt concrete are combined into a whole, so that the anti-seepage and reinforcing effects are improved, and various objects in the reservoir are also prevented from directly damaging the asphalt concrete anti-seepage layer.

The invention relates to the technical field of new energy batteries, in particular to a battery pack explosion-proof structure and a battery pack, the battery pack explosion-proof structure structurally comprises an outer shell, a heat insulation sheet and a wire harness fixing part, a mounting cavity is formed in the outer shell, the mounting cavity is used for mounting a battery cell module, the heat insulation sheet is arranged on one side, close to an electrode end of the battery cell module, in the mounting cavity, and a through hole is formed in the heat insulation sheet; the outer shell is provided with a first mounting surface, an explosion venting channel is arranged among one surface, facing the electrode end of the battery cell module, of the outer shell, the first mounting surface and the heat insulation sheet, the explosion venting channel is communicated with the through hole, a first explosion-proof piece is arranged on the first mounting surface, and the first explosion-proof piece is communicated with the explosion venting channel and is used for discharging pressure in the battery pack to the outside; the wire harness fixing part is arranged on the side, close to the first anti-explosion piece, in the installation cavity. The direct influence of high-pressure gas or high temperature on the wire harness is reduced, the thermoelectric separation effect is achieved, the damage to a circuit during thermal runaway is reduced, and the safety of the battery pack is improved.

The present application relates to the technical field of livestock breeding manure treatment, and discloses a manure composting fermentation device for livestock breeding, which comprises a liquid collecting tank, a fermentation tank and a base, a mixing mechanism is rotatably installed at one end of the fermentation tank, an oxygen conveying mechanism is rotatably installed at the other end of the fermentation tank, and an aeration mechanism is installed through one side of the oxygen conveying mechanism; the technical scheme of the present application is characterized in that the oxygen conveying mechanism and the aeration mechanism are cooperatively controlled, the real-time monitoring data of a temperature sensor and an oxygen sensor are utilized, the controller automatically switches according to the real-time environment in the fermentation tank, the temperature and the oxygen content are accurately controlled, and the composting is continuously fermented; the automatic switching mechanism ensures the stability and efficiency of the composting fermentation environment; the aeration mechanism directly penetrates the gas, avoids the direct damage of mechanical external force to the composting structure, maintains the stability of the composting porosity, and guarantees the gas diffusion channel required by the microorganisms.

The invention belongs to the technical field of lampshade materials of automobile atmosphere lamps, and discloses a chemical-resistant photodiffusion polycarbonate material for a CL process and a preparation method of the chemical-resistant photodiffusion polycarbonate material. Comprising the following raw materials in parts by weight: 75-95 parts of polycarbonate, 30-50 parts of bio-based polycarbonate, 1-5 parts of an acrylate and polycarbonate copolymer, 0.1-1 part of an ester exchange inhibitor, 0.1-0.5 part of an antioxidant, 0.1-0.5 part of a lubricant, 0.5-1.5 parts of a light diffusion agent, 1-3 parts of nano silicon dioxide and 0.5-2 parts of benzophenone. By adding the acrylate and polycarbonate copolymer, the photodiffusion polycarbonate material can effectively resist corrosion of chemical solvents, so that the anti-cracking performance of the material in a chemical environment is enhanced, meanwhile, bio-based polycarbonate has relatively good chemical stability in a molecular structure, and the photodiffusion performance of the material is improved. And the chemical resistance of the light diffusion polycarbonate material is further enhanced through the addition of the light diffusion polycarbonate material, so that the material is slightly influenced when being processed by a CL process, and the product quality is improved.

The invention discloses a high-frequency power supply intelligent control system based on high-voltage voltage-sharing rectification, and the system comprises a control cabinet, a control circuit board is fixedly installed in the control cabinet, a high-frequency power supply automatic control mechanism is integrated on the control circuit board, and the current and voltage are monitored and controlled in real time through the high-frequency power supply automatic control mechanism. A ventilation opening is formed in the lower surface of the control cabinet, a cooling fan is fixedly installed in the control cabinet, the cooling fan is flush with the ventilation opening, and a fire extinguishing sealing mechanism is rotationally installed on the lower surface of the control cabinet. Through the design of the high-frequency power supply automatic control mechanism, remote monitoring and control of the system are realized, cooperative work of all components of the whole system is realized, and stable high-frequency power supply, monitoring and remote control functions are finally realized through a series of conversion, monitoring and control processes from the high-frequency power supply module.

A shielding layer is a hard cuboid pit, constant-force supporting mechanisms are evenly arranged on the bottom face of the shielding layer, transverse moving plate mechanisms are arranged at the top ends of the constant-force supporting mechanisms and rigidly connected with the constant-force supporting mechanisms, and the bottom faces of the edges of the transverse moving plate mechanisms make contact with the top face of the periphery of the shielding layer. The outer side face of the transverse moving plate mechanism makes contact with the edge limiting mechanism, the edge limiting mechanism is of a rigid body structure with the bottom face being an inclined face, the starting end of the vibration starting mechanism is arranged on the bottom face of the transverse moving plate mechanism, and the temporary supporting mechanism is arranged between the transverse moving plate mechanism and the bottom face of the shielding layer and is a supporting mechanism with the adjustable supporting angle. The supporting angle adjusting end of the temporary supporting mechanism is connected with the working end of the vibration starting mechanism. The anti-seismic system is in a two-section type anti-seismic mode, through the mutual limiting and moving relation between the constant-force supporting part and the transverse plate, the transverse plate has a certain moving freedom degree, and direct damage to a concrete structure is avoided. And meanwhile, according to the temporary supporting mechanism, temporary high-strength force supporting is provided when large vibration occurs, the device is triggered based on earthquake strength, and the problems of deformation failure caused by long-time supporting and large instantaneous impact during triggering are solved.

The invention discloses a percolation characteristic parameter inversion method suitable for high-permeability rock, which comprises the following steps: S1, building a one-dimensional porous medium unsaturated two-phase percolation model, taking a porous medium, setting a continuous water supply boundary, corresponding to a one-dimensional percolation experiment, setting the permeability and porosity of a sample according to a water physical characteristic parameter test result of the sample, the inlet capillary pressure pec and the pore distribution index lambda are set as typical values, and simulation calculation of the seepage field of the sample is carried out; s2, obtaining the inlet capillary pressure pec and the pore distribution index lambda of the sandstone and the granite through calculation inversion; s3, comparing seepage field calculation results of different samples with seepage simulation experiment results, and carrying out simulation calculation to obtain pore size and distribution index constitutive characteristic parameters of the rock on the basis of rock permeability and porosity in combination with rock one-dimensional seepage experiment results; according to the invention, the seepage characteristic parameters of the high-permeability rock can be inverted with high precision.

The present application discloses a gas detector with waterproof capability, comprising: a detector body, the detector body comprising a mounting seat in which a sensing element is arranged, the mounting seat having an inlet for the gas to be detected, the inlet defining an axial direction; and a cover, the cover having a circumferential wall, the circumferential wall defining an enclosed space inside the cover, the enclosed space having a proximal end and a distal end in the axial direction, the cover being attached to the mounting seat so that the proximal end of the enclosed space is located near the inlet, wherein a plurality of shielding elements are attached to the circumferential wall, each of the plurality of shielding elements being configured to form a channel for water to flow through between the outside of the cover and the enclosed space and extending toward the distal end.

This utility model provides a marine gas detector housing and a marine gas detector, relating to the field of detection equipment technology. The housing includes a base, an upper shell, and a sealing ring. The surface of the base facing the upper shell has a circumferentially surrounding groove. The upper shell is used to mount the base to form a cavity structure for accommodating the marine gas detector body. The upper shell includes a first shell, which includes a side wall and a top cover. The side wall is perpendicular to the top cover, and the end of the side wall away from the top cover has a flange that engages with the groove. The side wall has a first through hole for at least a portion of the marine gas detector body to extend out and a second through hole corresponding to the gas sensing part of the marine gas detector body. The sealing ring is embedded in the first through hole, and a flow guiding structure corresponding to the second through hole is provided on the inner side of the side wall. The surface of the flow guiding structure is coated with a hydrophobic coating. This utility model can effectively protect the gas detector inside the ship's cabin.

This utility model discloses a base station anti-theft door lock structure, relating to the technical field of door lock structures. It includes a lock cylinder mounted on the main body of the anti-theft door, a connecting mechanism on the outer side of the lock cylinder, a front cover plate located on one side of the lock cylinder, and a rear cover plate on the other side of the lock cylinder. A positioning slot assembly is formed on the outer surface of the anti-theft door body. A connecting component is located between the front and rear cover plates and is used to connect the front and rear cover plates. A positioning plate is connected to the connecting component and is used to fix the front cover plate. This utility model's connecting mechanism facilitates the connection of the lock cylinder, front cover plate, and rear cover plate. Furthermore, the front cover plate is difficult to pry open from the front, and even if the lock cylinder is hammered inwards, the front cover plate, positioning plate, and rear cover plate can distribute the external force, thereby improving its impact resistance.

The invention provides a preparation method of a high-strength environment-friendly foaming hot melt adhesive, and belongs to the technical field of hot melt adhesives, the preparation method comprises the following steps: weighing an ethylene-vinyl acetate copolymer, hydrogenated petroleum resin, a functional filler, a foaming agent, a lubricant, a cross-linking agent, an antioxidant and a stabilizer according to a raw material formula for later use; the preparation method comprises the following steps: adding the raw materials into a mixer for stirring and mixing, then feeding into an extruder for melt extrusion, cooling and crushing to obtain a master batch; feeding the master batch into an injection molding machine to be processed into a sample wafer, so as to obtain the high-strength environment-friendly foaming hot melt adhesive. Wherein the functional filler is prepared by carrying out a reaction on a polyurethane prepolymer, modified nano TiO2 intercalated muscovite and 4, 4 '-diamino-3, 3'-dimethyl biphenyl methane. The foaming hot melt adhesive prepared by the invention is high in bonding strength, and has good mechanical properties and aging resistance.

The invention relates to the technical field of hazardous chemical substance storage areas, and discloses a hazardous chemical substance storage area inflammable gas detection method and a detection alarm device, and the detection alarm device comprises a device main body, a pressure reduction device, a balance device, a protection device and a reset device. According to the hazardous chemical substance storage area inflammable gas detection method and the detection alarm device, when encountering a strong storm, the balance between the bottom surface of an upper plate and a lower plate is broken and the upper plate begins to incline, and further when the upper plate inclines to form a radian, a support rod is converted from a vertical state to a bent state, so that the inflammable gas is detected; when the vertical plate slides downwards, the tail end of the shaft rod is driven to slide downwards synchronously, the tail end of the shaft rod is connected with the hydraulic rod, at the moment, the output end of the hydraulic rod is driven to be compressed, and when the external force is too large, the hydraulic rod is driven to be compressed; when the output end of the hydraulic rod is continuously pressed downwards and reaches the detection end of the sensor, the beneficial effects of monitoring the condition of the hazardous chemical substance storage area in real time and giving an alarm in time when external force is encountered are achieved.