262results about How to "Buffer" patented technology

The invention relates to a preparation method for an expanded material of polylactic acid; the polylactic acid, a tackifying modifier, a chemical inhibitor, a vesicant, a foaming accessory ingredient, a abscess stabilizer and a parting agent are mixed under high temperature according to a certain proportion to obtain a basic mixture; then the basic mixture is arranged in a die to carry out moulding foaming on a vulcanizing machine with a certain temperature and a certain pressure to manufacture the foaming material of polylactic acid. The foaming material of polylactic acid manufactured by the method of the invention has excellent performances of being biodegradable, controllable density, easy processing as well as good barrier property, has similar foaming shaping performance and shock-absorbing capacity with polystyrene, can replace the foaming material of polystyrene, can be used as the materials for heat isolating, sound isolating and shock absorption and has broad application in the fields of cushion packaging, transportation, electric apparatus, refrigeration, agriculture and forestry and gardening.

The invention relates to an articulated flexible manipulator which belongs to the technical field of the robots and the electromechanical integration. The manipulator is provided with three skillful fingers which are respectively arranged on three jaws of a three-jaw chuck, and the three skillful fingers produce chucking force by the function of fluid driving expansion muscle; each skillful fingeris provided with single artificial expansion muscle and a plurality of articulations with single degree of freedom, the artificial expansion muscle is flexible, axially-expandable, each smart fingeris assembled with a hinge framework or flexible hinge framework through the expansion muscle, the smart finger comprising a plurality of articulations with single degree of freedom is designed; the flexibility of the single expansion muscle and the structure of the articulations can realize the flexibility of the degree of freedom and the buffer of the chucking force, the skillful fingers have thecharacteristics of degree flexibility of freedom and chucking force buffer; and the manipulator is applied to chuck breakable brittle bodies and special bodies with shape and size change.

The invention provides a polylactic acid foaming material and a preparation method thereof. The polylactic acid foaming material is prepared from the following ingredients according to parts by weight: 45-93 parts of polylactic acid, 5-28 parts of toughener, 1-5 parts of nucleating agent and 1-10 parts of foaming agent. The polylactic acid is one of poly-L-lactic acid, poly-D-lactic acid and poly-DL-lactic acid or a mixture or a polymer thereof, and has the weight average molar mass of 0.8-3.5 million, molecular weight distribution of 1.2-2.5, and degree of crystallinity of 15-60 percent. The toughener is one of poly succinic acid butyl ester and poly adipate / butylene terephthalate or a mixture of two with random ratio. Other accessory ingredients can also be added. The preparation method comprises the following steps: evenly mixing the polylactic acid, the toughener, the nucleating agent, the foaming agent, the accessory ingredients and the like in a high mixing machine according to a certain proportion, then milling for 5-25 minutes at the temperature of 100-170 DEG C, and carrying out die pressing foaming on obtained materials at the temperature of 120-210 DEG C on a vulcanizing machine for 2-10 minutes to prepare the polylactic acid foaming material. The polylactic acid foaming material prepared by using the preparation method has the advantages of high resistance to shock, high elongation at break, high tensile strength and complete biodegradation after used.

The present invention relates to the turning buffer valve technology in crane, which is characterized by that in the main valve body through the installation of cavity, built-in channel and necessaryparts, the buffer valve, electromagnetic valve, adjustable backpressure valve, control valve and non-way valve are detachly combined in the main valve body to make it possess several functions of turning buffer valve in crane. Said invention possesses the advantages of reasonable compact structure, small volume and safe and convenient use, etc.

The invention discloses an agitator used for livestock feed processing. The agitator used for livestock feed processing comprises a stirring box; the stirring box is a cylinder with an opening on the upper end; the opening on the upper end of the stirring box is provided with a feed hopper; dispersing blocks are uniformly arranged in the feed hopper; a driving motor is fixedly arranged at the middle part of the lower end of the stirring box; an output terminal of the driving motor is provided with a material pushing shaft; the material pushing shaft in the stirring box is sleeved by a lifting barrel; the upper end and the lower end of the lifting barrel are fixedly connected with the material pushing shaft via fixing rods; a helical blade is arranged on the material pushing shaft in the lifting barrel; No.1 stirring rods are symmetrically arranged on the outside of the lifting barrel; the upper end of the material pushing shaft is fixedly provided with a driving gear. The agitator is simple and reasonable in structure design, is convenient to move, possesses buffer performance, is capable of realizing convection stirring of upper layer material with lower layer material in stirring, realizing reverse stirring of the materials in convection stirring, and improving material stirring effect greatly, is convenient for material rapid mixing, and is high in practicality.

The invention belongs to the field of photo-catalysis, and in particular relates to a preparation method of a bismuth oxide halide-titanium oxide nanotube array composite photo-catalytic membrane. The method comprises the steps of: first, preparing a titanium dioxide nanotube array membrane by adopting an anode oxidization method; then, enabling bismuth ions to enter nanotubes by vacuum impregnation; and at last, with a solution containing halide ions as a precipitator, enabling the halide ions to react with the bismuth ions to generate bismuth oxide halide, wherein the bismuth oxide halide is deposited in the nanotubes and on the surface of the nanotube of the titanium dioxide nanotube array so as to obtain the bismuth oxide halide-titanium oxide nanotube array composite photo-catalytic membrane. The preparation method disclosed by the invention combines the advantages of the titanium dioxide nanotube array and the advantages of the bismuth oxide halide, is convenient to use, and can be used for preparing composite photo-catalytic membranes with different bismuth oxide halide load capacities by changing the concentration of bismuth ions, etc; and the prepared composite photo-catalytic membrane has good photo-catalysis performance, large adjustability and high controllability,.

The invention discloses a formaldehyde scavenger, which comprises main ingredients: a reactant containing chitosan and vegetable tannin, as well as a penetrant, a surfactant, a pH regulator and a solvent. The preparation method of the formaldehyde scavenger comprises the following steps: heating the solvent, firstly adding chitosan, penetrant, surfactant and pH regulator into the solvent, stirring and dissolving, after the dissolving is thorough, then adding vegetable tannin, stirring and dissolving, after the dissolving is thorough, filtering and filling. The formaldehyde scavenger is especially suitable for removal of formaldehyde in fur products. Aiming at the texture and structure characteristics of fur, the selected reagent is concretely designed, and comes from natural animal and plant ingredients, thus being good in safety, incapable of causing harm to a user and clothes, and meeting the related laws and regulations and the quality standard of international and domestic fur clothes. The formaldehyde scavenger can be used for treating fur of fur processing industry, and can also meet the demand on removing formaldehyde of a common consumer on the fur products.

The invention discloses a steel wire rope twist direction climbing robot. The steel wire rope twist direction climbing robot includes a plurality of modules, wherein climbing devices are arranged in outer shells of the modules, the climbing devices include tensioning supports, rolling wheels are mounted in tensioning supports, rubber sheets are arranged on the circumferences of the outer edges ofthe rolling wheels, shafts are arranged on the back sides of the tensioning supports, holes are formed in the outer shells close to the shafts, linear bearings are mounted at the positions of the holes, the shafts of the tensioning supports penetrate through the linear bearings and the holes, limiting anti-loose nuts are mounted on shafts outside the outer shells, and springs are further arrangedbetween the back sides of the tensioning supports and the inner walls of the outer shells. Compared with the prior art, the steel wire rope twist direction climbing robot can roll in the direction ofa spiral line twisted in a steel wire rope, the needed driving force is smaller and stable, and the bearing capacity is high; and the climbing robot can work under a special environment and can meet the requirement of anti-explosion; and the shafts of the tensioning supports move telescopically relative to the linear bearings, and the certain buffering obstacle crossing ability and the disturbanceresistant capacity are achieved.

The invention discloses a cutting machine for processing a tie cloth in the field of a cutting machine, which comprises a cutting table; the bottom part of a mandril is moveably provided with a firstmoving mechanism, and the bottom part of a flexible rod is provided with a cutter; bottom parts at left and right sides of the supporting bracket are connected with pressing plates; through the walking of a first walking mechanism and the matching of a motor through an active gear and a driven gear, the supporting bracket is rotated, and a second walking mechanism is matched to drive the cutter towalk and cut the cloth; the cloth cutting can be realized at different angles and positions; the pressing plates can prevent cloth from displacement in cutting, the cutting opening is flat and burr-free after cutting the cloth; the cutting quality is good and the working efficiency is high; through the flexible device, height of the bottom part of the cutter blade out of the pressing plate is changed along with the thickness of the cloth, different thicknesses of clothes can be cut.

The invention discloses a highly integrated hydraulic servo oil cylinder having buffering and overload protection functions. The highly integrated hydraulic servo oil cylinder comprises a cylinder barrel, wherein an end cover matched with the front end face and an end cover matched with the rear end face are arranged in the front and the back of the cylinder barrel respectively, the cylinder barrel, the front end cover and the rear end cover form a cylinder body provided with a hollow cavity, a piston rod and a piston which are machined integrally are installed in the hollow cavity of the cylinder body, a high-pressure oil way hole and a low-pressure oil way hole are formed in the cylinder body, and a tension and pressure sensor is installed on the rear end cover. Each of the high-pressure oil way hole and the low-pressure oil way hole is provided with a connector body fixed to the cylinder barrel, one connector body is communicated with a high-pressure loop, and the other connector body is communicated with a low-pressure loop. An electro-hydraulic servo valve, a one-way valve, a safety valve and a hydraulic accumulator are installed on the cylinder body, the hydraulic oil inflow end of the one-way valve is communicated with a system low-pressure loop hole through a one-way valve oil way plate, and the hydraulic oil outflow end of the one-way valve is communicated with a rod cavity of the oil cylinder. The hydraulic accumulator is communicated with a rodless cavity of the oil cylinder, the high-pressure end of the safety valve is communicated with the rodless cavity of the oil cylinder, and the low-pressure end of the safety valve is communicated with the system low-pressure loop.

The invention relates to a material conveying device and a scraper. The invention provides a scraper which comprises a scraper body and a support body; the scraper body is provided with a bottom surface and a top surface opposite to the bottom surface; the support body is formed on the bottom surface of the scraper body and is provided with a mounting surface, and the mounting surface forms a partof the bottom surface; and a rolling body is arranged on the mounting surface, wherein when the scraper is in a mounting position, the rolling body can support the scraper body, and the support bodyis a non-metal elastomer. The invention also provides material conveying apparatus such as a scraper conveyor to which the above-described scraper is applied. By changing the contact and friction modes of the scraper and the conveying groove, the working state of the scraper and the overall load of the conveyor are improved, the idle load is reduced, and the service life of the scraper and even the overall service life of the scraper conveyor are prolonged.

The invention discloses an ABS (Acrylonitrile-Butadiene-Styrene) highlight packing master batch and a preparation method thereof. The ABS highlight packing master batch is prepared from the following raw materials in parts by weight: 0.5-2 parts of surface treatment agent, 60-90 parts of barium sulfate, 0.5-2 parts by weight of active agent, 0.5-2 parts by weight of dispersing agent, 3-12 parts by weight of lubricating agent, 0-8 parts by weight of compatilizer, 0-5 parts by weight of toughening agent, 0-2 parts by weight of antioxidant and 3-20 parts by weight of carrier resin. Compared with the prior art, the ABS highlight packing master batch has the advantages that multiplayer coating activating treatment is carried out on the inorganic particle barium sulfate, so that a layer of elastic compatilizer layer is formed on the surface of the barium sulfate, can generate strong bonding force with the barium sulfate and can also be bonded with the carrier resin through chemical bonds or strong van der waals force, thus the multilayer coating inorganic particles can be uniformly dispersed to the matrix resin, and when the material is subjected to external force action, the elastic compatilizer layer has good effects of buffering and stress dispersion and improves the toughness and anti-impact property of the material.

The invention relates to fireproof flame-retarding polystyrene foam which is technically characterized in that an inorganic flame retardant, a water-soluble adhesive, an inorganic dispersing agent, a strength enhancer, water and a foaming agent are added into polystyrene foam plastic granules, extracted from waste polystyrene foam plastics, and ordinary polystyrene foam plastic granules. The invention further provides a production method of the fireproof flame-retarding polystyrene foam. The fireproof flame-retarding polystyrene foam disclosed by the invention has the physical and chemical properties of light weight, cushioning, heat insulation, chemical resistance and the like, and further has the characteristics of simple process, low cost, wide application range, long service life and the like.

The invention discloses a composite material floating type net-shaped interception system and a construction method. A primary buoy, a lateral buoy, a secondary buoy and a small buoy are manufactured through a vacuum infusion one-time forming technology by means of fibers and resin and are connected through cables which are adjacent to one another and connected, then the relative positions of the buoys are determined through ultra-high-molecular-weight polyethylene nylon cables via anchors, the buoys are fixed to a riverbed, a pair of floating type net-shaped interception systems are symmetrically arranged on the two sides of a pier so that ships can be interrupted or poked to steer, and the systems serve as the first defensive line for buffering collisions. When the composite material floating type net-shaped interception system is used as a composite material floating body anti-collision device, if small ships collide with a bridge tower, high deformation capacity is achieved due to the fact that section shells of the buoys are made of elastic composite materials, and the buoys can be automatically restored and not damaged after compression.

The invention discloses a method which is suitable for softening and dealing with industrial circulating cooling water by micro-basification. Nanofiltration process equipment is adopted for removing the multivalent ions such as Ca<2+>, Mg<2+>, SO4<2+>, and the like, in the water and some Na<+> ions are preserved, or the combination of cation-exchange resin weak-acid and nanofiltration is adopted for removing the multivalent ions such as Ca<2+>, Mg<2+>, SO4<2+>, and the like, in the water and some Na<+> ions are preserved; anion resin of OH-type / CO3-type / HCO3-type is adopted for removing the left superacid anions in the water, and the superacid anions are exchanged by OH<-> / CO3<2-> / HCO3<->, and the producing water is alkaline. The alkaline producing water reacts with the CO2 in the air to realize chemical equilibrium, and dilute solution with buffering is formed, the pH value of the circulating cooling water is adjusted to alkalescency ranging from 8.3 to 9.2, and softening and micro-basification treatment of the circulating cooling water is realized. The method of the invention can realize that various additionally added chemical agents such as antiseptic, corrosion inhibitor, scale inhibitor, water stabilizer, bactericidal algicide, and the like, are avoided for use in the circulating cooling water system, and has the technical effects of corrosion prevention, scaling prevention and microbial contamination prevention as well as comprehensive economic benefit that discharge of enriched water and chemical substance is reduced.

The invention provides an artificial sponge soil for urban green space, and relates to the technical field of artificial soil. The artificial sponge soil for urban green space includes a surface layerof buffering pervious bed and a ground layer of aquifer, wherein the buffering pervious bed comprises the following components in a volume ratio: 35%-45% of sandy soil, 20%-30% of industrial and mining waste, 15%-25% of agricultural and forestry waste decomposed substrate, 15%-25% of perlite, 0.5%-1% of granule agent, and 0.5%-1% of stabilizer; the aquifer includes the following components in a volume ratio: 30%-40% of clay soil, 20%-30% of agricultural and forestry waste decomposed substrate, 0.1%-1% of granule agent, 5%-15% of bentonite, 10%-15% of vermiculite, 15%-25% of plant fiber, 0.05%-1% of microbial agent, and 2%-8% of fertilizer; the thickness of the buffering pervious bed is 3 cm to 10 cm; and the thickness of the aquifer is 10 cm to 30 cm. The artificial sponge soil for urbangreen space has the characteristics of strong water permeability, high water storage capacity, good erosion resistance and the like, thus being able to improve the quality of rainwater infiltrated into the soil, reduce pollution to urban groundwater, achieve the purpose of rainwater infiltration, storage and purification, and greatly reduce the high cost of sponge city construction.

The invention relates to a treatment method of domestic wastewater, and belongs to the field of environmental protection. The method comprises the following steps of: adding calcium silicate into the domestic wastewater from a biochemical treatment process, controlling the dosage of calcium silicate to be 0.1-1.0g in per 100mL of the domestic wastewater and adjusting the pH to 2-12, uniformly dispersing calcium silicate in the water, keeping for 15-90 minutes, and then filtering and collecting the treated water. Calcium silicate adopted by the method is from a by-product of a technique related to extracting alumina from high-aluminum pulverized coal ash; and calcium silicate has the characteristics of large specific surface area, micro pores formed inside and low cost, so the removal rate of COD (Chemical Oxygen Demand) is high, a high cost defect of the advanced treatment in the prior art is overcome, comprehensive utilization of the resource is realized, and environmental protection is benefited.

The invention provides a submarine with a self-rescue protection device. The submarine comprises a hull and a self-rescue protection device. The self-rescue protection device is arranged on both sides of the hull by segments, and the self-rescue protection device comprises an air reservoir, a protection cover, a life saving air bag, an auxiliary air bag, a towrope and a waterproof winch, wherein the upper edge of the protection cover is connected with the hull through a hinge, and the lower edge is connected with the waterproof winch arranged in the hull through the towrope; the auxiliary air bag is connected on the bottom of the life saving air bag and then is arranged between the protection cover and the hull together; and the air reservoir is arranged outside or inside the hull. The invention has the function of self rescue, and once the submarine is demotivated or seriously damaged to sink into the sea, submarine sailors can float the hull to water surface by releasing the life saving air bag through manual control; and the submarine can resist torpedo attacks, the self-rescue protection device on both sides of the hull has certain strength and buffer, once the submarine is stricken by a torpedo, the protection cover and the folding life saving air bag are blown off firstly, so that the hull can be effectively prevented from being seriously damaged, and the survival possibility of the submarine sailors is increased.

An automatic separator for the antiwear cast balls is composed of machine frame, prismatic drum and drive unit. After the linked cast balls with sprute are loaded in its drum, the drum is driven by motor to rotate while the collesion and friction take place between said cast balls to separate them from each other and grind their surfaces.

The invention provides a lifting gate type internal solitary wave generating device comprising a gate sheet, a support and a lifting device; the left and right sides and bottom edge of the gate sheet are provided with elastic material, a panel is vertically provided with a plurality of guide beams, and the bottom is provided with a cable guide; the support comprises two transverse racks respectively arranged in the front and rear side of the gate sheet and crossing above a water groove; a fixed pulley is arranged on the top of each transverse rack; one side, close to the gate sheet, of the transverse rack is vertically provided with a conductive fluent bar, and all conductive fluent bars are applied on the panel of the gate sheet; the transverse rack close to the guide beam is vertically provided with a plurality of limit fluent bars, and all limit fluent bars are applied to the corresponding guide beams; the lifting device comprises a cable and a hoist; the cable penetrates the gate sheet cable guide, and two ends of the cable are commutated by the corresponding fixed pulley and fixed on the hoist; the hoist is arranged on the support and can synchronically pull the two ends of the cable. The lifting gate type internal solitary wave generating device is suitable for large, medium and small test water grooves, simple in structure, and easy in operations.

The invention discloses a hydrodynamic retarder which comprises a rotor, a stator and a circle of oscillating teeth. An inner cavity is formed in the stator, the rotor is arranged in the inner cavity of the stator, and the center of the rotor is overlapped with the circle center of the inner cavity of the stator. A circle of oscillating tooth grooves communicated with a high-pressure oil inlet is formed in the wall of the inner cavity of the stator, the oscillating teeth are embedded into the corresponding oscillating tooth grooves one by one, and the outer ends of the oscillating teeth are opposite to the outer wall of the rotor. The outer wall of the rotor is a variable-diameter face, the variable-diameter face is evenly divided into a plurality of equant portions, and the variable diameters and directions of all the equant portions are the same. According to the hydrodynamic retarder, the rotor can freely rotate in the stator in the normal rotating process, and when the oscillating teeth in the stator are in contact with the rotor under the action of high-pressure oil and brake force is generated, high efficiency, large torque and brake buffering can be achieved; meanwhile, the hydrodynamic retarder has the advantages of being balanced in radial power, low in noise, compact in structure, small in size and low in manufacturing cost.

The invention discloses a cold-rolling strip steel cutting device. The cold-rolling strip steel cutting device comprises a workbench, supporting feet are fixedly installed at the bottom of the workbench, a supporting plate is welded to one side of the workbench, a supporting column is fixedly connected to the supporting plate, a supporting top plate is fixedly connected to the top end of the supporting column, a hydraulic cylinder is fixedly installed on the top of the supporting top plate, a hydraulic rod is fixedly connected to the output end of the hydraulic cylinder, and one end of the hydraulic rod is fixedly connected with one side of a first fixing plate. According to the cold-rolling strip steel cutting device, a sleeve is fixedly installed at the top end of a support frame, a sleeve rod is arranged in the sleeve in a penetrating mode, a lifting screw is connected into a screw hole formed in the sleeve rod in a screwing mode, one end of the lifting screw is fixedly connected with a compressing plate, and therefore the lifting screw can be rotated as needed to enable the compressing plate to achieve a compressing effect on cold-rolling strip steel; in addition, a telescopicspring has a certain buffering property, and therefore the compressing effect of the compressing plate is improved.

The invention relates to the preparation technology of vibration isolation gloves. The preparation technology of the vibration isolation gloves is characterized by comprising the steps of sequentially going through the procedure of material preparation, the procedure of foam rubber preparation, the procedure of dotting and the procedure of drying, wherein the procedure of rubber soaking preparation after the procedure of foam rubber preparation is further included, and the procedure of rubber soaking and the procedure of re-drying are further included after the the procedure of drying. In the procedure of material preparation, raw materials comprise natural emulsion, foaming agents, thickening agents and waterborne PU resin. According to procedure of dotting, foam rubber is used for frictioning for about 10 seconds. According to the procedure of rubber soaking, the rubber is soaked in the rubber soaking glue for about 1-2 seconds. The rubber is made to be even for 5 times. The manufactured vibration isolation gloves have buffer performance, is capable of effectively reducing vibration to hands, strong in holding power, soft, light, sensitive, good in breathability, and incapable of enabling a user to feel fatigue after being worn for a long time.

The invention provides a biochar-based sand modifier and a preparation method thereof and belongs to the technical field of compound fertilizer. The biochar-based sand modifier comprises biochar, nitrogen fertilizer, phosphorous fertilizer, potassium fertilizer and bentonite clay minerals. The preparation method comprises the following steps: smashing the biochar, then mixing with the nitrogen fertilizer, phosphorous fertilizer, potassium fertilizer and bentonite to form premix, granulating, and drying, so that the biochar-based sand modifier is obtained. The biochar-based sand modifier obtained by adopting the preparation method has the advantages that the biochar can improve a sand soil structure and has carbon fixation effect, release of fertilizer in soil can be delayed and continuous fertilization effect is achieved when the biochar is combined with the other components, the soil structure can be improved at the same time, and product quality can be improved.

The invention discloses a novel grinding device for inner protrusion of a steel pipeline. The device comprises a protrusion grinding assembly, the protrusion grinding assembly comprises a plurality offan-shaped grinding rods distributed annularly, the left ends and the right ends of the multiple fan-shaped grinding rods are fixedly connected to mounting disc bodies, a shaft rod is fixedly arranged between the mounting disc bodies in a connection mode, the left end of the shaft rod penetrates through the mounting disc bodies, and the left end of the shaft rod is rotationally connected to a left end frame; the left end frame is detachably mounted on the shaft rod; the protrusion grinding assembly further comprises a driving motor; the driving motor is fixedly connected to a right end frame;the device further comprises a supporting assembly, and the supporting assembly is located under the fan-shaped grinding rod; and the supporting assembly comprises a corrugated supporting plate, thecorrugated supporting plate is provided with an arc-shaped recess, and supporting frames are fixedly connected to the front end and the rear end of the corrugated supporting plate. By means of the parts of the device, the inner side walls of steel pipes of different specifications and sizes are automatically ground, and the technical defects that the grinding efficiency is low and operation is unsafe when workers enter large steel pipes are overcome.

The invention relates to an improved air packaging device. Two layers of thermoplastic films are subjected to secondary thermoplastic packaging to form a stereoscopic packaging body which can be sealed. The improved air packaging device comprises a plurality of independent seal air chambers and a main passage, wherein the main passage is provided with an air inlet; and each seal air chamber is communicated with the main passage by a check valve formed by two layers of films. The improved air packaging device is characterized in that the check valve and the main passage for inflating the check valve are formed by carrying out thermoplastic packaging on the two layers of films and one layer of thermoplastic film of the packaging body into a whole and can be arranged in any position of the seal air chambers. Meanwhile, because the two layers of check valve films are only fixed on any layer of thermoplastic film, and the check valve films are adhered to the thermoplastic film after inflated and do not bear any tension, the tearing risk does not exist, and the safety of the packaging device is greatly improved.

The invention provides a numerical control conical crushing machine. The crushing machine is arranged on a stander; a movable cone is arranged inside the crushing machine through a bearing; a fixed cone is sleeved outside the movable cone and is supported between a carrying plate and a base plate on the stander through a hydraulic stretching machine; a pneumatic motor is arranged on one side of the stander; a motor gear of the pneumatic motor is meshed with a movable cone gear on the movable cone; a hydraulic pump is arranged at the lower part of the stander and is connected with an electromagnetic valve, a buffering machine and the hydraulic stretching machine through hydraulic oil pipes; a piston and a spring are arranged inside the hydraulic stretching machine; a distance sensor is arranged between the carrying plate and a piston rod; a numerical controller is arranged on the stander. Control data is input, so that the hydraulic stretching machine works, and data setting and data control of a distance between the movable cone and the fixed cone of the conical crushing machine are realized. The invention is suitable for numerical control conical crushing machines.

The invention discloses the reinforcement coagulate resin mortar casting tube and preparing method. The method comprises the following steps: 1 10-60% resin, 3.497-15% toughening agent, 1.5-6% plasticizing agent, 5- 80% quartz sand, 0.5-5% levelling agent, 40-3% curing agent, 0.5-5% accelerating agent, 0.003-5% defoaming agent; 2 mixing resin, plasticizing agent, quartz sand, levelling agent, curing agent and accelerating agent; 3 adding defoaming agent; 4 adding them into die with web tendon; 5 curing, stewing and mould unloading; 6 checking; 7 getting the reinforcement coagulate resin mortar casting tube. The tube is used as tube building material. The invention has the advantages of high strength, light weight, good sealing, corrosion prevention, long lifetime and low cost.

The invention discloses a smartwatch with an airbag being self-opened for protection during downward facing of a screen. The smartwatch structurally comprises an airbag self-opening device, a first wristband, a buckle ring, a second wristband, a smartwatch body and the smartwatch screen, and one end of the smartwatch body is connected with the first wristband. Compared with the prior art, the smartwatch has the beneficial effects that by additionally arranging the airbag self-opening device on the smartwatch, when the smartwatch falls, a rubber head serves as a cushion pad to enable the smartwatch screen and the ground to have a distance, thus contact between the smartwatch screen and the ground is avoided, the smartwatch is prevented from being subjected to impact force of the ground, thus the smartwatch can be protected well, the screen is not crushed, inner parts are not damaged, and the smartwatch can be used normally; and when the smartwatch is placed, the rubber head can serve asa support foot to prevent the screen from making direct contact with a desktop, direct contact between the screen and the contact surface is avoided, thus the screen is not scratched due to friction,and numerical values on the screen can be clearly visible.