142results about How to "Increase force" patented technology

The invention provides a precast pile, a combined pile and a construction method, and relates to the technical field of pile foundation construction.The precast pile comprises a first pile body, a second pile body and a third pile body, the first thickened protrusions are fixed to the peripheral wall of the first pile body and arranged in the length direction of the first pile body at intervals; the first annular protrusion is fixed to the first pile body in a surrounding mode, and the at least one first thickened protrusion is located between the first annular protrusion and the second end; when the precast pile is placed in the drill hole, the projection of the inner peripheral wall of the drill hole in the length direction of the first pile body surrounds the outer side of the projection of the combination body of the first pile body and the first thickened protrusion in the length direction of the first pile body, and the projection of the first annular protrusion in the length direction of the first pile body completely covers the projection of the inner peripheral wall of the drill hole in the length direction of the first pile body. After construction of the combined pile comprising the precast pile is completed, the bearing capacity of the combined pile can be improved.

The invention relates to the technical field of reverse osmosis membranes, in particular to a polyamide reverse osmosis membrane for high-salinity wastewater treatment and a preparation method of the polyamide reverse osmosis membrane. The invention solves the problem that the polyamide reverse osmosis membrane cannot give consideration to both desalination rate and water flux. The polyamide reverse osmosis membrane comprises a polyester non-woven fabric layer, a polysulfone porous layer, a transition layer and a polyamide layer. The polysulfone porous layer is prepared, and the modified pore-forming agent is added to improve the water flux of the reverse osmosis membrane; the hydrophilicity of the reverse osmosis membrane is improved by preparing the transition layer and adding a hydrophilic auxiliary agent when the polyamide layer is prepared; the flux attenuation rate of the polyamide reverse osmosis membrane is reduced by preparing the polyamide layer; the desalination rate of the reverse osmosis membrane is improved by introducing a composite ion complexing agent and graphene quantum dots into the polyamide layer.

The invention discloses a protective film pressing device and a use method thereof, and belongs to the technical field of protective film processing, the protective film pressing device comprises a cabinet placed above the ground, an unwinding roller is rotatably mounted on the upper surface of the left end of the cabinet, and a winding roller is rotatably mounted on the upper surface of the right end of the cabinet; a fixing frame is fixedly installed on the upper surface of the machine cabinet, a movable plate is arranged above the fixing frame, an air conveying assembly is connected between the fixing frame and the movable plate, a rotating frame is elastically and rotationally connected to the lower portion of the movable plate through a torsional spring, and an obliquely-arranged exhaust roller is rotationally connected to the lower end of the rotating frame. And a heat generation assembly for heating air is arranged on the inner side of the exhaust roller. According to the protective film pressing device and the using method thereof, the exhausting and pressing effects on the protective film can be improved through vibration, gas can be automatically conveyed to heat the protective film in the pressing process, and the exhausting and cleaning effects of the protective film are further improved.

The invention discloses a processing technology of a down-proof down jacket fabric, belongs to the technical field of down jacket fabric processing, and aims to solve the technical problem that the down-proof performance, the waterproof air permeability and the antistatic performance of the down jacket fabric in the prior art need to be further improved. The method comprises the following steps: by taking a fabric lining film as an inner layer and a base fabric as an outer layer, coating a modified cross-linking agent between the two layers, putting the two layers into a hot melting bonding machine, and carrying out hot bonding to obtain the down-proof down jacket fabric, the fabric lining film is prepared from the modified graphene compound, the modified polyurethane and the deionized water, so that the down-proof performance, the waterproof performance and the air permeability of the down jacket fabric are effectively improved, the antistatic performance and the mechanical performance of the down jacket fabric are improved, and the down jacket fabric better meets the requirement of the clothing manufacturing industry for the down-proof down jacket fabric.

The present application relates to the field of filling glue, and in particular to a high-flowability epoxy resin encapsulated bottom filling glue and a preparation method thereof. The high-flowability epoxy resin encapsulated bottom filling glue, in parts by mass, has the following raw materials: 40 to 60 parts of epoxy resin composition, 10 to 15 parts of active diluent, 20 to 25 parts of curing agent, 1 to 2 parts of accelerator, 20 to 35 parts of modified filler, 1 to 4 parts of coupling agent, 1 to 1.5 parts of leveling agent, and 1 to 3 parts of flame retardant. The epoxy resin encapsulated bottom filling glue prepared in the present application not only has good stress impact resistance, mechanical properties and flow properties, but also can maintain excellent moisture resistance, water resistance, corrosion resistance, acid and alkali resistance and other properties, thereby greatly improving the application performance of the filling glue and having very excellent application prospects.

The utility model relates to the field of automobile seat retainer ring installation equipment, in particular to novel retainer ring assembly equipment which comprises an installation frame, an upper frame is arranged on the installation frame through an upper frame positioning tool, an installation driving mechanism used for installing a retainer ring on the upper frame is further arranged on the installation frame, and the installation driving mechanism comprises a supporting seat. The supporting base can slide on the mounting frame in the direction facing the upper frame, and a positioning detection mechanism used for being connected with the clamping ring in a clamping mode is arranged on the side, facing the upper frame, of the supporting base. According to the utility model, a conventional manual installation mode or a complex equipment installation mode is replaced, the automatic detection and installation process of the retainer ring is realized in a low-cost mode, the influence of product design on the assembly difficulty is reduced, and the stability of product assembly is ensured; the lever structure is used for increasing the acting force when the clamping ring is installed, and stable and reliable installation is guaranteed; and the mounting state of the clamping ring is accurately detected through the positioning detection mechanism, and the neglected mounting condition is avoided.

The invention discloses a battery fire extinguishing agent and a preparation method and application thereof. Preparation raw materials of the battery fire extinguishing agent comprise water, hydrated salts and auxiliary materials, the auxiliary materials comprise at least one of nano-particles or an organic binder, and the mass fraction of the hydrated salts in the preparation raw materials is 10%-80%. The battery fire extinguishing agent contains high-concentration hydrated salts, can effectively inhibit the occurrence of membrane boiling, and can interact with the nanoparticles and the organic binder to remarkably improve the fire extinguishing capacity and the cooling effect of the fire extinguishing agent.

The utility model relates to the technical field of operation machinery, and discloses a track shoe assembly, a track and a track type operation machinery track shoe assembly. The crawler belt assembly comprises a crawler belt plate body, and at least one groove extending in the first direction is formed in the first plate face of the crawler belt plate body; the protection cushion block comprises a cushion block body and at least one protrusion arranged on the first surface of the cushion block body, the protrusions extend in the first direction, and the protrusions correspond to the grooves in a one-to-one mode and are in interference fit with the grooves. According to the track shoe, the protective cushion blocks are arranged in the grooves of the track shoe body, so that the contact area between a track and a road can be increased, the pressure applied to the road is reduced, and the damage to the road can be reduced.

The pneumatic clamp comprises a cylinder body, a first side face and a second side face, the first side face and the second side face are opposite to each other, the first side face is provided with a first air inlet and a second air inlet, and a piston body comprises a first piston parallel to the first side face, a second piston parallel to the second side face and a connecting body connecting the first piston and the second piston. When air enters the first air inlet, the first piston and the sliding blocks get close to each other, when air enters the second air inlet, the second piston and the sliding blocks get away from each other, in the process that the sliding blocks get close to or get away from each other, the positioning pins move in the guide grooves, at least one guide groove is obliquely arranged, and the value range of the inclination angle of the guide grooves is (0, pi / 2). According to the utility model, the original mode of driving the piston up and down is changed, and the piston is driven by the left side surface and the right side surface, so that the design space of the piston is increased in a disguised manner, the size of the piston is correspondingly enlarged, the acting area of the piston is greatly increased, and the acting force on the piston is further increased.

The invention discloses a pine needle organic compost preparation and application method, and belongs to the technical field of organic fertilizers, and the pine needle organic compost preparation and application method comprises the following steps: mixing potassium sulfate, plant ash, modified attapulgite, borax, pine needles and rape seed cakes, uniformly stirring, grinding, and carrying out puffing treatment to obtain a puffed material; uniformly mixing the puffed material, potassium citrate and a composite strain, fermenting, and drying to obtain a fermented material; mixing the leavening, the seaweed extract, the modified cellulose and the lignin aqueous dispersion to obtain a compound microcapsule; mixing the compound microcapsules, the reinforcing filler and the organic fertilizer to obtain a mixture, and dehydrating, granulating, screening and packaging the mixture to obtain the organic compost. The compound microcapsules avoid the loss of beneficial components of the leavening and the organic fertilizer in the processes of dehydration, granulation, screening and packaging, and the compound microcapsules provide a living space for composite strains in the leavening; the reinforcing filler has a porous structure, so that the adsorption of the fertilizer is improved.

The invention discloses a biodegradable composite polylactic acid packaging bag and a preparation method thereof, belongs to the technical field of biodegradable materials, and aims to solve the technical problem that the mechanical property, heat resistance and biodegradation rate of a polylactic acid material in the prior art need to be further improved. The material comprises the following components in parts by weight: 90-100 parts of modified polylactic acid, 10-15 parts of modified starch, 15-20 parts of modified nanofiber, 4-8 parts of pigment and 5-7 parts of additive, and is prepared by taking the modified polylactic acid as a basic raw material, the modified starch and the modified nanofiber as reinforcing materials and the pigment and the additive as auxiliary additives. The mechanical strength and high temperature resistance of the packaging bag are effectively improved, and the biodegradability of the packaging bag is improved, so that the packaging bag better meets the requirements of express and logistics industries on biodegradable packaging materials.

The present application relates to a thin-walled shell forming mold, which belongs to the field of processing and forming technology. The thin-walled shell forming mold includes a first mold body and a second mold body; the first mold body includes a first molding surface; the second mold body includes a second molding surface, and the second molding surface and the first molding surface form a molding cavity for molding the shell; wherein the first molding surface is provided with a gate for injecting molding liquid into the molding cavity, the second molding surface is provided with a plurality of first air holes for discharging gas from the molding cavity, and the second mold body is provided with an air cavity for accommodating gas, and the plurality of first air holes are connected to the air cavity. The thin-walled shell forming mold provided by the embodiment of the present application can improve the yield rate of the manufactured thin-walled shell.

The application discloses a kind of logistics conveyors for lithium battery safety transmission, it includes main conveying line body and the tray conveying line body for conveying tray;The main conveying line body and the tray conveying line body are arranged upside down, and the conveying direction of both is opposite;The first end and the tail end of the main conveying line body are respectively equipped with tray lifting mechanism;The tray has upper and lower through hollow groove part;The main lifting body and the auxiliary lifting body are provided with drum part on the main lifting body and the auxiliary lifting body;The main lifting body can be lifted relative to the main conveying line body, and the auxiliary lifting body can be lifted relative to the main lifting body.The tray lifting mechanism at the first end of main conveying line body is used to provide tray for lithium battery;The tray lifting mechanism at the tail end of main conveying line body is used to recycle the tray at the bottom of lithium battery.Such, lithium battery has tray protection during the process of moving along main conveying line body, effectively protect the safety of lithium battery.

This invention relates to an underwater pipeline flaw detection robot, belonging to the field of underwater pipeline inspection technology. The invention comprises a main ring, a cleaning mechanism, a spring telescopic lever, a moving mechanism, a second spring, a drive mechanism, and a monitoring probe. A receiving groove is formed on the inner wall of the main ring. The cleaning mechanism is slidably connected to the receiving groove. The two ends of the spring telescopic lever are hinged to the cleaning mechanism and the moving mechanism, respectively. The spring telescopic lever is rotatably connected to the side wall of the receiving groove. The moving mechanism is slidably connected to the side wall of the receiving groove. The two ends of the second spring are fixedly connected to the moving mechanism and the side wall of the receiving groove, respectively. The drive mechanism is fixedly installed on the outer wall of the main ring, and the monitoring probe is fixedly installed on the top surface of the main ring. This invention allows the robot to be fitted onto the pipeline, improving its stability in water. The cleaning mechanism cleans the deposits on the pipeline, improving the flaw detection effect. The moving mechanism allows the robot to move in water while traversing flanges, enabling the robot to successfully complete flaw detection work.

An electromagnetic induction charging small door actuator comprises a shell for assembling an actuating mechanism and a magnetic induction unlocking assembly; the actuating mechanism comprises a driving rod, a reset spring and a locking assembly, the driving rod is movably arranged in a mounting cavity and has an upper end penetrating the shell, the reset spring is used for upwardly pushing the driving rod, the locking assembly is used for locking or unlocking the driving rod, and up-and-down movement of the driving rod can drive the locking assembly to act; the magnetic induction unlocking assembly comprises an electromagnet and a sliding insert, the sliding insert is fixed with a magnet, the electromagnet cooperates with the magnet to drive the sliding insert to move transversely, the sliding insert is provided with a positioning pin, the driving rod is provided with a locking hole, and the positioning pin can be inserted into the locking hole. The actuating mechanism can realize the functions of pressing and locking the charging door and opening the charging door again. The magnetic induction unlocking assembly further improves the use reliability, avoids accidental unlocking, has a simple structure, is convenient and efficient to assemble, has a small size, and is convenient to assemble on a vehicle.

The present application provides a negative electrode plate, comprising a current collector and a negative electrode film layer, wherein the negative electrode film layer comprises a negative electrode active material, a copolymer formed by acrylonitrile and acrylic acid components, and a polyol. Optionally, the negative electrode film layer further comprises a polyether. The cross-linked polymer and polyether described in the present application can reduce the rebound rate of the negative electrode plate during cycling, thereby improving the capacity retention rate of the battery.

This invention discloses an acid-triggered hydrogel plugging agent and its preparation method, comprising polyacrylamide, carboxylated tannic acid, and slow-release iron, wherein the mass ratio of polyacrylamide, carboxylated tannic acid, and slow-release iron is 10:0.03-0.06:0.005-0.01. This invention solves the problems of existing gel plugging agents being unable to remain stable in acidic environments for extended periods and being difficult to inject.

The application discloses a driving motor, a camera module and an electronic device, and belongs to the technical field of camera modules. The driving motor comprises a shell, a carrier, a magnetic piece and a coil assembly. The carrier is located in the shell and is used for carrying a lens. The magnetic piece is connected with the carrier. The coil assembly is connected with the shell. The coil assembly comprises a first coil and a second coil. When the coil assembly is in a first energization state, the first coil and the second coil generate electromagnetic forces of the same direction on the magnetic piece, so that the magnetic piece drives the carrier to move. When the coil assembly is in a second energization state, the first coil and the second coil generate electromagnetic forces of opposite directions on the magnetic piece.

The invention relates to the technical field of photovoltaic equipment, and provides photovoltaic module surface dirt removing equipment using natural wind, which comprises a plurality of fourth supporting frames, cams are rotatably mounted in the fourth supporting frames, blades are fixedly arranged on the cams, moving plates are slidably mounted in the fourth supporting frames, first mounting frames are fixedly arranged on the moving plates, and second mounting frames are fixedly arranged on the first mounting frames. The device has the beneficial effects that blades drive a cam to rotate through wind power, the cam, a second elastic component and a moving plate are matched with each other to drive the moving plate to move in a circulating and reciprocating mode along a fourth supporting frame, and the wiping component is detachably mounted at the lower end of the first mounting frame; and a movable plate drives a wiping part to be combined with liquid to clean the surface of the photovoltaic module, the movable plate drives a first mounting frame to move along a third water conveying pipe to control intermittent opening of a drainage hole, consumption of water resources is reduced, and reasonable utilization of energy is improved.

The utility model provides a precast concrete frame beam structure which comprises a first precast fixing plate and a second precast fixing plate, the upper portion of the first precast fixing plate is provided with the second precast fixing plate, the inner side of the first precast fixing plate is provided with a positioning hole, the upper end of the second precast fixing plate is fixedly provided with a positioning block, and the upper end of the second precast fixing plate is provided with a positioning hole. A first adjusting frame and a second adjusting frame are arranged on the outer side of the first prefabricated fixing plate and the outer side of the second prefabricated fixing plate, rotating lead screws are installed in the first adjusting frame and the second adjusting frame, connecting blocks are arranged at one ends of the rotating lead screws, and pressing plates are rotatably installed at the other ends of the rotating lead screws. The first prefabricated fixing plate and the second prefabricated fixing plate can be fixed through cooperation of the positioning holes and the positioning blocks, the overall strength of the frame beam structure can be improved, the acting force of the side faces of the prefabricated fixing plates can be increased by rotating the lead screws, and the side faces of the first prefabricated fixing plate and the second prefabricated fixing plate can be fixed through the pressing plates.

The present invention relates to a solid electrolyte and a preparation method therefor, and, more specifically, the solid electrolyte comprises a mixed conductive polymer with ion conductivity and electrical conductivity characteristics and a binder so as to have enhanced adhesive strength and strength, thereby having reduced interfacial resistance, and thus can have improved ion conductivity.

The invention relates to a high-strength antibacterial spandex fabric and a preparation method thereof, and belongs to the technical field of functional textile materials. The spandex fiber comprises a spandex fiber matrix and a functional polymer layer grafted on the surface of the matrix through a covalent bond, and the functional polymer layer is a polymer of an unsaturated derivative of natural phenolic acid and is prepared by introducing carbon-carbon unsaturated bond groups such as acryloyloxy and the like into the natural phenolic acid through esterification or etherification. During preparation, the spandex fiber is subjected to plasma pretreatment, and then the spandex fiber and the natural phenolic acid-containing unsaturated derivative monomer are subjected to thermal initiation or photo-initiation graft polymerization to form the functional layer. The lasting and stable antibacterial function is achieved through covalent bond grafting, the natural phenolic acid derivative endows the fiber with the environment-friendly and non-dissolution type antibacterial property, the functional layer can improve the modulus and breaking strength of the fiber, the intrinsic elasticity of spandex is considered, the comfortable fitting characteristic of the composite fabric is reserved, and the composite fabric is endowed with the high strength and the antibacterial function.

The utility model discloses board cutting equipment for manufacturing an integrated circuit board, and relates to the technical field of circuit board manufacturing. Two T-shaped grooves are formed in the upper side of the workbench, a mounting frame is arranged on the inner walls of the two T-shaped grooves in a sliding fit mode, a cross-shaped groove is formed in one side of the mounting frame, a cross-shaped sliding block is arranged on the inner wall of the cross-shaped groove in a sliding fit mode, a mounting groove is formed in the inner wall of the cross-shaped sliding block, and a threaded rod is arranged on the upper side of the inner wall of the mounting groove in a rotating fit mode. Through the arrangement of the rotating wheel, when a circuit board is cut and processed and a knob is rotated to adjust the position of a cutting knife, the rotating wheel is firstly in contact with the placing plate, and then under the action of a reset spring in a storage groove, a counter-acting force is generated on the lifting plate, so that the acting force required by rotating the knob is increased and is fed back to an operator; an operator can finely adjust the position of the cutting knife, the situation that the cutting knife collides with the knife when the knife is adjusted is avoided, and the service life of equipment is prolonged.

The utility model discloses a ceramic sample fork, which relates to the technical field of wafer processing equipment, aims to solve the problem of wafer positioning, and comprises a main body, the main body is made of a ceramic material and is formed by integrally forming a pair of arm forks and a fixed end, the pair of arm forks is symmetrically arranged on the two sides of the fixed end. The arm fork is arranged to be in an arc shape, a step is arranged on the inner wall of the arm fork, and the vertical face of the step is arranged to be a slope. By arranging the steps with the slope of 75 degrees and matching the positioning holes and the positioning columns, accurate positioning of the wafer is achieved, and the problem that the wafer is damaged due to inaccurate positioning in the processing process is avoided.

The present invention provides a design method for an adjustable steam seal and spring sheet for a steam turbine, and relates to the field of steam seals for steam turbines. The scheme adopted is: comprising a steam seal body and a steam seal ring, the steam seal ring is a segmented structure, comprising at least 4 steam seal arc segments, the steam seal body is provided with a mounting groove, a spring sheet is provided between the steam seal body and the steam seal ring, the spring sheet comprises a fixed end, a middle part and a free end in sequence, the widths of the fixed end, the middle part and the free end are all the same, the fixed end and the free end are both arc-shaped structures, the middle part is a straight structure, a slot is provided on the steam seal arc segment, the fixed end is inserted into the slot, the fixed end and the free end are both in contact with the top of the steam seal body cavity, the middle part can slide along the steam seal arc segment, a limiting plate is also provided on the steam seal arc segment, and the two ends of the limiting plate can be in contact with the steps of the mounting groove. The present invention can effectively maintain the minimum gap between the dynamic and static parts of the steam turbine, the good yield and sealing properties of the steam seal ring, and at the same time, the spring sheet is not easy to break and has a long service life.

According to the foaming device, a driving shaft drives a switching shaft to move towards a liquid storage cavity through water inlet pressure, so that a containing groove is communicated with the liquid storage cavity, and foaming liquid flows into the containing groove; and when the water pressure of the inlet water disappears, the driving shaft falls back due to loss of thrust, and then the switching shaft is driven to fall, so that the accommodating groove is communicated with the liquid mixing cavity, and the foaming liquid in the accommodating groove flows into the liquid mixing cavity and is mixed with the previous inlet water body to form a mixed liquid. Therefore, according to the device, the foaming liquid can be automatically added only by opening or closing the inlet water flow, the liquid is quantitatively added each time, and the liquid adding amount is accurate and controllable, so that the arrangement of an independent infusion pump is avoided, the internal structure of the cover plate is simplified, the power loss is reduced, and the noise and the later maintenance cost are reduced.

The application discloses a high-strength, large-pore-volume phosphorus-containing binder, characterized in that the binder comprises a glue, a curing agent and a modifier; the glue comprises a phosphorus-containing compound and an aluminum-containing compound; the curing agent comprises a gamma-aluminum oxide precursor, an acid and an alkylammonium salt, and the modifier is a metal chelate; wherein the colloidal solubility index of the gamma-aluminum oxide precursor is less than or equal to 50%; and the modifier is reacted with the glue in a high-shear dispersion emulsifier. The phosphorus-containing binder provided by the application, in combination with a conventional method, can obtain a catalytic cracking catalyst which, on the basis of high molecular sieve content and large pore volume, still has high wear resistance.

The invention discloses a hub powder coating capable of resisting powder collapse during finish turning as well as a preparation method and application of the hub powder coating. The hub powder coating is prepared from the following raw materials: modified polyester resin, epoxy resin, filler, a crosslinking accelerator, a flexibilizer and an adhesion promoter. According to the powder coating disclosed by the invention, modified polyester resin and epoxy resin are mainly adopted to react, a carboxyl-terminated group in the polyester resin and an epoxy group in the epoxy resin are subjected to a cross-linking curing reaction to prepare a coating, and meanwhile, a flexible small molecular chain segment is successfully grafted on a polyester branch chain, so that the glass transition temperature of the resin and the subsequently prepared powder coating is reduced; the toughness and the secondary recoating adhesive force of the coating are effectively improved. The powder coating can be used for automobile hubs, an obtained coating has good toughness, leveling property and corrosion resistance, the problem of powder collapse during finish turning can be avoided, meanwhile, a large curing window is achieved, and the requirements of customers for different furnace temperatures can be met within a certain temperature range.

The utility model relates to the technical field of trailer protection, in particular to an anti-tipping device for a trailer, which comprises a carriage, a plurality of connecting blocks are fixedly mounted at the bottom of the carriage, dampers are fixedly mounted at the other ends of the connecting blocks, first springs are arranged on the dampers, mounting blocks are fixedly connected to the other ends of the dampers, and the mounting blocks are fixedly connected to the bottom of the carriage. A rotating rod is rotationally connected to the mounting block, first rolling wheels are fixedly connected to the two ends of the rotating rod, a bottom plate is fixedly mounted in the carriage, and a plurality of partition plates are fixedly mounted on the bottom plate. The partition plates are installed on the bottom plate, goods are placed in a separated mode, when the trailer inclines, the carried goods can be blocked by the partition plates and cannot completely fall to one side to cause tipping, and the dampers at the bottom of the carriage can play a damping role when the trailer inclines, so that the carriage is prevented from tipping.

The utility model provides an inclined strut core-pulling mechanism and an injection mold, the inclined strut core-pulling mechanism comprises a movable mold insert, a clamping piece and a driving assembly, the clamping piece comprises a first inclined strut and a second inclined strut, and the first inclined strut and the second inclined strut are both provided with fastening ends; the clamping piece and the movable mold insert are in sliding connection in the first direction so that the two fastening ends can get close to each other in the second direction to release a product or get away from each other to support the product, the first direction is perpendicular to the second direction, the ends, away from the product, of the first inclined strut and the second inclined strut are hinged to the driving assembly, and the driving assembly can drive the clamping piece to move in the first direction.