19results about How to "Large external force" patented technology

The invention relates to a preparation method of paper, in particular to a preparation method of breathable paper applied to a packaging material. Chitosan and oxidized sodium alginate are subjected to a Schiff base reaction, so that a more open and loose coating layer is formed on the fiber surface, gas circulation is facilitated, and the air permeability of the paper is improved to a certain extent. And a covalent bond formed by Schiff base reaction enhances the binding force between chitosan and oxidized sodium alginate, so that the coating layer is more firmly attached to the surface of wood pulp fiber. The enhanced binding force is favorable for improving the mechanical properties such as tensile strength and breakage resistance of the paper, and an imine bond generated by the Schiff base reaction has higher chemical stability and can resist the influence of changes of external environments such as humidity, temperature and the like on the coating layer, so that the long-term stability of the performance of the paper is kept.

The invention discloses a high-toughness conjoined rubber tube and a production process thereof, and belongs to the technical field of rubber tubes. The high-toughness connected rubber tube comprises the following raw materials in parts by mass: 100 parts of ethylene propylene diene monomer, 8-15 parts of phenyl silicone rubber, 20-25 parts of filler, 6-10 parts of modified hydroxyl-terminated polysilsesquioxane, 2-5 parts of a vulcanizing agent, 1-3 parts of a vulcanization accelerator, 3-5 parts of a vinyl silane coupling agent and 1.5-3.5 parts of an antioxidant, wherein a polycarbonate chain segment is grafted on a molecular chain of the modified hydroxyl-terminated polysilsesquioxane. Blending of the phenyl silicone rubber and the ethylene propylene diene monomer can help to effectively transfer stress, resist external force, improve the toughness of the connected rubber tube and make up for the problem of poor wear resistance of the ethylene propylene diene monomer. The introduction of the polycarbonate chain segment can improve the compatibility of the components, form an interpenetrating network structure, enhance the toughness and other mechanical properties of the material, and can recover as soon as possible under the action of external force, thereby prolonging the service life of the rubber tube.

The invention relates to the field of lithium battery protection plates, and discloses a shockproof and anti-collision lithium battery protection plate, which comprises a shell, four shockproof assemblies used for reducing the vibration of a battery pack are arranged in the shell, and the shockproof assemblies are arranged at the four corners in the shell. The shockproof and anti-collision lithium battery protection plate comprises a shell, the front side and the rear side of the shell are each provided with a first anti-collision assembly used for reducing impact force, a second anti-collision assembly is arranged under the shell, and the second anti-collision assembly is used for further reducing the impact force. Through mutual cooperation of the first anti-collision assembly and the connecting assembly, the lithium battery can move backwards, damage to the lithium battery caused by the deformed shell is avoided, the probability of spontaneous combustion and explosion of the lithium battery can be reduced accordingly, obstacles can be discharged when the lithium battery is subjected to small collision, and the influence on driving safety is avoided.

The utility model relates to the technical field of transformers, in particular to an oil-immersed power transformer cooling fin structure which comprises a box body, oil collecting boxes and a plurality of cooling fin bodies, the cooling fin bodies are symmetrically distributed on the two sides of the oil collecting boxes, at least every two cooling fin bodies form a cooling fin set, and the oil collecting boxes are located at the two ends of the cooling fin set respectively. Supporting assemblies and reinforcing assemblies are arranged on the two sides, facing the cooling fins, of the box body, the supporting assemblies abut against oil collecting boxes at the bottoms of the cooling fin sets, the two reinforcing assemblies are arranged at equal intervals in the length direction of the cooling fin bodies, one end of each reinforcing assembly is fixedly connected with the outer side wall of the box body, and the other end of each reinforcing assembly penetrates through gaps between the cooling fin bodies. The radiating fins are attached to the outer side surfaces, deviating from the box body, of the radiating fins; convection of transformer oil can be promoted more effectively, and heat exchange efficiency is improved; meanwhile, oil flow can be evenly distributed, and local overheating is avoided; the structural strength of the cooling fin set is remarkably improved, and good safety and adaptability are achieved.

The utility model provides a roller shutter type vertical wall. The roller shutter type vertical wall comprises a transverse plate, a balance weight transverse rod, a rotating shaft, a driving motor, a control mechanism, a shutter face, two fixing plates, two guide sliding rails, two sliding table structures and four reinforcing installation structures. The upper portion of the curtain face is wound on a rotating shaft which is arranged between two fixing plates, the end of the rotating shaft is connected with one fixing plate through a driving motor, the two fixing plates are arranged on the lower end face of the transverse plate, and the driving motor is connected with a control mechanism. The balance weight cross rod is arranged at the bottom of the curtain face, the two sliding table structures are symmetrically arranged on the left side and the right side of the balance weight cross rod, each sliding table structure corresponds to one guide sliding rail and is in sliding connection with the guide sliding rail, and the upper end and the lower end of each guide sliding rail are each correspondingly provided with one reinforcing installation structure. The roller shutter type vertical wall solves the problem that due to the fact that the matching stability of a smoke blocking vertical wall and a guide rail in the related technology is poor, a shutter face shakes due to lack of enough support when moving up and down.

The invention discloses composite high-strength black ceramic and a preparation method thereof, and relates to the technical field of ceramic manufacturing. The glaze is prepared from the following materials in parts by mass: 50 to 85 parts of mica, 65 to 90 parts of feldspar, 2 to 5 parts of nano silicon dioxide, 5 to 10 parts of red clay, 15 to 30 parts of quartz, 15 to 16.5 parts of calcite, 80 to 100 parts of kaolin, 20 to 30 parts of talc, 5 to 8 parts of nano ferrum dioxide, 2 to 5 parts of copper sulfate pentahydrate, 2 to 3 parts of potassium nitrate and 5 to 8 parts of borax decahydrate. The corrosion-resistant coating is prepared from, by mass, 5-8 parts of ethylene diamine tetraacetic acid, 3-5 parts of manganese dioxide, 2-5 parts of cobalt oxide, 1-3 parts of iron oxide, 2-5 parts of chromium oxide, 5-8 parts of silicon oxide and 10-20 parts of acetone. According to the composite high-strength black ceramic and the preparation method thereof, the oxide is added, so that the physical properties of the ceramic can be improved in the ceramic, a certain strengthening effect is achieved in the microstructure of the ceramic, and the ceramic can bear larger external force and abrasion.

The utility model discloses a quick-mounting type fabricated wall body, which belongs to the field of fabricated wall bodies and is characterized in that through holes are formed in the upper end and the lower end of a thermal insulation wall plate, the through holes directly face round holes, butt joint holes, the round holes, the through holes and the butt joint holes, screw tubes are arranged at the positions of the round holes, the through holes and the butt joint holes, fixing rods are inserted into the upper screw tube and the lower screw tube, and inserting rods are arranged at the lower ends of the fixing rods; inserting rods matched with the inserting holes are formed in the upper ends of the fixing rods, and the multiple fixing rods are connected to achieve rapid assembly of the multiple heat preservation wallboards. By using the components such as the fixing plate and the fixing rod in the quick fitting, quick and accurate connection between the assembled wallboards can be realized, so that the construction period is greatly shortened. And the fixing plate is tightly combined with the assembled wall plate by virtue of the screw tube, so that the stability of the wall body in the horizontal direction is ensured. Meanwhile, the fixing rods are inserted into the screw pipes and connected with the multiple assembly wall plates, and firm connection of the wall bodies in the vertical direction is achieved. The multi-layer connection mode effectively enhances the structural strength of the wall body, so that the wall body can bear larger external force.

The utility model relates to the technical field of safety protection devices, and discloses a safety protection device convenient to move, which comprises a main body, a mounting groove is arranged on the inner wall of the main body, and a locking device is fixedly connected to the middle of one side of the back of the main body. The locking device is arranged to ensure that the main body frame cannot be folded or unfolded accidentally in the using process, the locking device is clamped between the clamping block and the clamping groove to fix the main body frame so as to meet the requirements of different scenes, and the fixing device fixes the device on the ground so as to resist the influence of natural factors such as wind power and rainwater. The ground peg is simple in structure and convenient to use, the use safety and stability are ensured, after the ground peg is inserted into the ground, the friction force between an object and the ground can be increased, the sliding possibility is reduced, and therefore the use safety is improved, and the ground peg is usually made of metal or other high-strength materials, has good tensile resistance, compression resistance and torsion resistance and can bear large external force.

The utility model relates to the technical field of damping equipment, and discloses an electromechanical equipment damping device which comprises a base, a damping mechanism is fixedly connected to the top of the base, a fixing frame is fixedly connected to the top of the damping mechanism, and a heat dissipation assembly is arranged on the outer wall of the base. The electromechanical equipment damping device is provided with cooling fins, a supporting plate, an outer shell, a filter screen, a fixing bolt, a cooling fan, a water inlet pipe, a circulating water pipe and a water outlet pipe, heat generated by an electromechanical equipment body can be dissipated into the environment more quickly by arranging the cooling fins, cooling water enters the circulating water pipe through the water inlet pipe, the cooling fan works, and the cooling effect is improved. And the blown air passes through the circulating water pipe to form cold air which is blown to the heat dissipation fins, so that the heat dissipation fins are helped to more effectively dissipate heat generated at the bottom of the electromechanical equipment body, the heat dissipation efficiency is improved, the heat dissipation effect is enhanced, and the requirements of people are met.

The utility model discloses a kind of distributed mobile energy storage equipment cabinet, including bottom plate and multiple energy storage boxes, multiple energy storage boxes are placed on the upper surface of bottom plate, the upper surface of bottom plate is fixedly connected with two fixed plates, and energy storage box is located between two fixed plates and contact with fixed plate, the both ends of two The fixed plate is fixed with limit plate by bolt assembly, the middle position of limit plate upper surface is fixedly connected with vertical plate, and vertical plate is contacted with the outer wall of the two energy storage boxes located in outermost side, the top end between two The vertical plate is installed with pressing plate by fixed component, and pressing plate is contacted with the top outer wall of energy storage box. The utility model not only can be combined and connected to multiple energy storage boxes of different length and height by staff, more flexible in use, but also can further enhance the connection strength of vertical plate and limit plate by wedge.

The invention relates to a thermoplastic composite board, a preparation method thereof, a photovoltaic backboard and a solar photovoltaic device. The thermoplastic composite board comprises continuous fiber thermoplastic one-way prepreg tapes which are arranged in a stacked mode. The continuous fiber thermoplastic unidirectional prepreg tape comprises the following components in percentage by mass: 22%-59.9% of polyamide, 40%-70% of continuous glass fiber and 0.1%-8% of a functional aid, in two adjacent layers of continuous fiber thermoplastic unidirectional prepreg tapes, the extension directions of the continuous glass fibers are respectively a first direction and a second direction, and the first direction and the second direction are mutually crossed. The thermoplastic composite board is good in aging resistance and weather resistance, not prone to cracking and environmentally friendly.

The utility model relates to the technical field of fixing supports, in particular to a high-durability tree windproof and anti-toppling plastic-coated steel pipe fixing support suitable for multiple fields, which comprises a fixing rod and a connecting belt, the fixing rod comprises a supporting rod, a fixing sleeve cup and a connecting wedge block, the fixing sleeve cup is fixedly mounted at the upper end of the supporting rod, and the connecting wedge block is fixedly mounted on the fixing sleeve cup. The connecting wedge block is fixedly connected with the fixing sleeve cup in an inserted mode, the connecting wedge block is provided with a fixing wedge face used for abutting against an object to be fixed, an included angle is formed between the fixing wedge face and the axis of the supporting rod, the connecting belt is used for binding the connecting wedge block and the object to be fixed, environment protection is facilitated, and the fixing support can effectively prevent trees from falling down and is convenient to use. The fixing support reduces damage to trees, protects the environment, improves economic benefits, promotes technical progress and innovative development, adapts to market requirements, is convenient to produce and manufacture, low in manufacturing cost, good in structural rigidity, not prone to damage, firm in connection and capable of stably supporting an object to be fixed.

The utility model discloses an improved stirring frame of an electric ice cream machine. A shaft sleeve hole is formed in the center of the bottom plate, the rotating shaft is sleeved with the shaft sleeve hole, the rotating shaft is fixed to a bolt at the upper end of the rotating shaft through a nut, the two ends of the bottom plate are each fixedly provided with a vertical plate, the upper middle portion and the lower middle portion of the first vertical plate are each provided with a notch, the upper middle portion and the lower middle portion of the second vertical plate are each provided with a notch, and each notch is provided with two hole channels. A clamping groove is formed in the outer end of the sleeve rod, a sleeve sealing ring is clamped on the clamping groove, the sleeve rod penetrates through the hole channel to clamp the scraper plate at the notch, and the scraper plate is a nylon PA6 plastic plate. The scraper is high in strength and good in toughness and wear resistance. The scraping plate can be tightly attached to the barrel wall for scraping, scraping is thorough and clean, stirring is uniform, and machine blocking is avoided.

This application discloses a washing and drying line for recycling PE agricultural film, relating to the technical field of plastic recycling. It includes a pretreatment module, a main treatment module, and a dewatering device. The dewatering device includes a body with a rotating drum and a rotating shaft rotatably mounted on it. The rotating shaft is coaxially arranged inside the drum and has spiral blades for propelling the material. A drive mechanism on the body drives the drum and shaft to rotate at different speeds. The body has an inlet communicating with a separation chamber and a solid outlet communicating with the separation chamber. A water guiding chamber is provided inside the drum, and several micropores communicating with the water guiding chamber are provided on the inner wall of the drum. A drain pipe communicating with the water guiding chamber is provided on the body. A pump unit is located on the side of the drain pipe away from the water guiding chamber, capable of inflating, deflating, and pumping water. This application has the effect of reducing the moisture content of the material.

The utility model discloses a cross-linked polyethylene insulated fire-resistant power cable, comprising a composite outer sheath, the composite outer sheath is composed of a protection layer, a reinforcement layer and an inner protection layer, the inner side of the composite outer sheath is provided with a composite fire-resistant layer, the composite fire-resistant layer is composed of a fire-resistant base layer, a reinforcement layer and a sealing layer, the inner side of the composite fireproof layer is provided with a composite insulation shielding layer, the composite insulation shielding layer is composed of an outer semi-conductive layer, an insulation medium layer and an inner semi-conductive layer, the inner side of the composite insulation shielding layer is provided with a cable core, and the cable core is internally provided with at least six groups of wire cores. The problem that a power cable is poor in insulation and fire resistance is solved.

The invention relates to an unthreaded hole locking buckle assembly which comprises an insertion part which is of a columnar structure, can be inserted into an installation unthreaded hole formed in an installation plate and is in interference connection with the installation unthreaded hole. The clamping part is made of a metal material, is clamped and fixed on the inserting part, and is clamped on the inner wall of the mounting unthreaded hole when the buckle body is pulled out; and the suction cup and the mounting plate are located on the same plane, and the suction cup is used for being adsorbed to the side wall of the mounting plate after the insertion part is inserted into the mounting unthreaded hole. The buckle is compact and reasonable in structure and convenient to operate, and the connecting effect of the buckle body and the mounting unthreaded hole is remarkably improved through multiple modes of multiple clamping mechanisms, structural design optimization, pullout force increase and the like. Under the combined action of the supporting part of the inserting part and the clamping head of the clamping part, stable and reliable clamping is realized; the round end face and the side face of the connecting plug are closed up, and the supporting parts are annularly distributed at equal intervals and extend, so that the resistance during insertion is reduced, and the mounting convenience is improved.

The invention discloses a self-repairing hydrophobic coating and a preparation method thereof, and belongs to the technical field of coating preparation, the hydrophobic coating comprises a main material and an auxiliary material, the main material comprises a mixture composed of zirconium diboride and carbon nanotubes; tetraethoxysilane is added; a low surface energy modifier, which is a low surface energy high-molecular polymer; mesoporous silica and a zeolite imidazole skeleton; the ingredients comprise deionized water, dimethylformamide, chloroform, tetrahydrofuran and tannic acid; the low surface energy modifier is composed of polydimethylsiloxane and 3-aminopropyltriethoxysilane, and the low surface energy high-molecular polymer is composed of polysilazane, a fluorine-containing polymer and a dendritic macromolecule. According to the hydrophobic coating, a pore channel structure is constructed in the hydrophobic coating, a mixture formed by mixing zirconium diboride and carbon nanotubes can store low-surface-energy substances, and when the surface of the coating cracks, the stored low-surface-energy substances can be activated and migrated to the surface of the coating through heating treatment, so that the self-repairing process is achieved.

The application belongs to the technical field of hydraulic engineering manufacturing, and provides a large-span water conservancy gate and a manufacturing process thereof; in a historical symmetry welding period, a visual sensor is used to simultaneously monitor welding tracks of welding joints in symmetric directions to obtain A welding sub-track and B welding sub-track; the welding seams on both sides of the A welding sub-track and the B welding sub-track are analyzed from the space X axis, the space Y axis and the space Z axis, respectively; the overall fitting degree of the A welding sub-track and the B welding sub-track in the three-dimensional space is reflected, that is, the consistency comprehensive performance of the welding seams on both sides in each dimension, so as to help reduce the vibration and shaking of the gate in the running process due to the inconsistent welding seam positions, make the structure stress of the gate more uniform, enable the gate to bear greater external force, effectively reduce the gap at the welding seam, improve the sealing performance of the gate, and prevent the occurrence of problems such as water leakage.

This application discloses an adjustable shuttle guide wheel, including a vehicle body. Protective covers are connected to the four corners of the vehicle body's bottom via mounting components. Movable wheels are installed inside the protective covers. Guide wheel bodies are mounted on the front and rear sides of the protective covers via vertically movable connecting components. The guide wheel bodies symmetrically positioned on the left and right sides of the connecting components can roll along the sides of the guide rail, and their spacing is adjustable. The mounting components adopt a detachable connecting flange structure, including a vertical support plate and a horizontal support plate. The vertical support plate and the protective cover are height-adjustable through elongated holes and fixing holes. The horizontal support plate is used to adjust the spacing between the guide wheel bodies through elongated holes and locking nuts. This application improves the adaptability of the guide wheels to different guide rails, enhances the stability and reliability of the shuttle operation, and provides convenient installation and maintenance, with a stable and reliable structure.