559results about How to "With shock absorption" patented technology

The invention relates to an external skeleton assisting robot, in particular to a portable energy-storage type external skeleton assisting robot. The problems that an existing lower limb external skeleton assisting robot worn on the human body is poor in assisting effect so that the loading capacity of the human body can be reduced, the wearing comfort for the human body is poor, the universality is poor, and the field environmental suitability is poor are solved. The portable energy-storage type external skeleton assisting robot comprises the upper body back, the left leg and the right leg, and the left leg and the right leg respectively comprise a hip driving system, a thigh driving system and a shank wearing system. A hip joint energy-storage mechanism comprises a connecting base, a stretching rod, a second spring and a stopping sheet, and a first bevel gear is meshed with a second bevel gear. Each hip driving system comprises a second motor with a coder, a second reducer, a third bevel gear, a fourth bevel gear, a thigh connecting rod, a knee joint support, a knee joint connecting plate, an angle sensor, a series connection elastic combination body, a knee joint gearbox body, a knee joint shaft and an end cover. The portable energy-storage type external skeleton assisting robot is suitable for being worn outdoors for walking assisting.

The invention discloses an anti-shock damping safety seat. The both sides at the bottom of a seat main body are connected with a supporting plate through damping rods; the back surface of the seat main body is in sliding connection with a back plate through a damping connecting piece; the damping connecting piece comprises a connecting block, a damping spring group, a silica gel layer and a sliding block; one side of the connecting block is fixedly connected with the back surface of the seat main body, while the other side of the connecting block is connected with the silica gel layer through the damping spring group; one side of the silica gel layer is connected with the sliding block; a sliding chute in fit with the sliding block is formed in the back plate; a fixing base is coated with a first anti-collision bag; the first anti-collision bag is filled with a buffer material; a buffer bag is arranged in the fixing base and filled with a buffer gas generating material; second anti-collision bags are arranged on the back surface and the bottom surface of the seat main body and are filled with an energy absorbing material; arc-shaped rubber layers are arranged on the outer sides of the second anti-collision bags. The anti-shock damping safety seat, disclosed by the invention, is better in shock resistance, good in buffering and damping effect, capable of automatically recovering within a certain range, and good for protecting human body.

The invention discloses a convenient method for preparing binder-free stannic oxide / carbon fibrofelt for a negative pole of a high-performance lithium ion battery. The method disclosed by the invention comprises the following steps: dissolving polyacrylonitrile and stannous chloride which have certain concentrations to a N'N-dimethyl formamide solution, magnetically stirring the solution of polyacrylonitrile, the stannous chloride and the N'N-dimethyl formamide solution until the solution is clarified, electrostatically spinning the solution, and finally annealing the obtained solution which is obtained at a high temperature twice to obtain Sn-SnOx uniformly loaded nanometer composite materials of the carbon fibrofelt. For a compound which is prepared by the method disclosed by the invention, since the electrostatic spinning method is adopted, nanometer particles of metal-metallic oxide are uniformly dispersed into buffer substrate carbon fiber, and the circulation specific capacity and the stability of materials for the negative pole of the lithium ion battery are effectively improved. The preparation technology disclosed by the invention has the advantages that the operation is simple, the cost is low, the efficiency is high, the large-scale and industrial production is easy to realize, and the application range is broad.

The invention discloses a cement-based adhesive which consists of an inorganic gel, elasticity modulus filler, sand and a dry-mixed mortar additive, wherein the mass percentages of the various components in the adhesive are as follows: 35-45% of inorganic gel, 15-30% of elasticity modulus filler, 17-47% of sand, 3-8% of dry-mixed mortar additive and the balance of water. The cement-based adhesive disclosed by the invention has the following beneficial effects that by adding the low elasticity modulus filler which has the advantages of good elasticity, shock-proofing, sound insulation and the like, the cement-based adhesive has the characteristics of shock absorbing, noise reduction and the like, so that a problem of noise generated from the collision of ceramic tiles in a public place is relieved; in addition, the cement-based adhesive provided by the invention also solves the problems of low compressive strength, low bonding strength and the like of the adhesive after the low-modulus filler is added; shearing strength on the interfaces of the ceramic tiles caused by heat expansion and cold contraction is reduced and the bonding durability of the ceramic tiles on the basis of shock absorbing and noise reduction is improved; therefore, the cement-based adhesive is quite high in promotional value.

The invention relates to a wheel type robot with a walking system, and the walking system is formed by combing foot type walking devices with a driving device and is connected with a fixing frame (7); each foot type walking device is composed of a follower gear (1), a leg type supporter and a hanging mechanism (15) provided with wheels (16). One connection point of the leg type supporter is hinged with an eccentric point of the follower gear (1), and the other connection point of the leg type supporter is hinged with the connection point of the hanging mechanism; the number of the foot type walking devices is at least two, and the hanging devices (15) of at least two foot type walking devices are provided with electric motors (19) for driving wheels (16) to rotate; the driving device is provided with a main electric motor and a main drive shaft (6) which is provided with a main drive gear (4) engaged with the follower gear (1). The wheel type robot with the walking system has the characteristics of high motion velocity, simple control and flexible turning, and has the function of foot walking, so that the robot has more adaptive capacity to the ground.

The invention relates to an aerogel composite board and a preparation method thereof. The composite board comprises a panel, a bottom board, and skeletons which are positioned between the panel and the bottom board and are crossed to form a plurality of cavities. The preparation method comprises the steps of coating a binding agent at one side of the bottom board so as to bind the skeletons with the bottom board; filling the cavities of the skeletons with silica aerogel; coating a binding agent at one side of the panel and binding with the skeletons filled with the silica aerogel. The aerogel composite board and the preparation method thereof have the advantage that the mechanical strengths of the panel, the bottom board and the whole composite board are improved by adopting a structure of enabling the skeletons as a center and compounding boards up and down; the coefficient of thermal conductivity of is reduced to 0.010-0.020 (W / m.k) through the aerogel evenly distributed in the cavities of the skeletons, so that the composite board is superior to various heat-insulating materials, and is next only to a vacuum insulating board; The application range of the composite board application scope is widespread, such as industry, the external walls of buildings, interior decoration, traffic transportation vehicles and ships.

The invention discloses a high-performance concrete admixture in use of waste ceramic powder and an implementing method thereof. The high-performance concrete admixture is prepared by the following steps: utilizing waste ceramics as a main material and utilizing active seed crystals and a modified enhancer as auxiliary materials; performing modified treatment and high-temperature smelting on various materials, then putting into a cement mill to mill the materials to be pre-finished products with specific area of 300-450 m2 / kg, and finally, doping mixed fibers. The high-performance concrete admixture comprises the raw materials in parts by weight: 80-100 parts of waste ceramic powder, 6-9 parts of active seed crystal, 2-6 parts of modified enhancer and 5-10 parts of mixed fibers. By adopting mixed ceramic powder, density of cement mortar is effectively increased; strength of concrete is improved and durability of concrete is remarkably improved. Energy problems are solved, and meanwhile, an environmental protection purpose is considered; the high-performance concrete admixture has remarkable technical, economic and social benefits.

The invention relates to a crawler type passive self-adaptive robot which comprises a vehicle body module, two damping modules installed on the front side and the back side of the vehicle body modulerespectively, an information collection module installed at the upper part of the vehicle body module and four crawler type wheels installed on the two sides of the vehicle body module respectively; the two ends of each damping module are connected with two corresponding crawler type wheels respectively; the four crawler type wheels have a thoroughly identical structure and are arranged around thevehicle body module in a front and back as well as left and right symmetrical manner; each crawler type wheel comprises a crawler, a belt wheel structure and a belt transmission body, and the belt transmission body is connected with the vehicle body module on one hand and is connected with the belt wheel structure on the other hand; each crawler is installed on the outer surface of the corresponding belt wheel structure; and each belt wheel structure comprises six transmission gears, two planetary supporting frames, four center shafts, two center gears and two planetary gears. By adopting therobot, each crawler type wheel is driven by a motor to move; through connection of the damping modules, damping arms stretches and varies, swing rods swing from left to right, and the robot can passacross a complex terrain.

The invention discloses a preparation method of a polyurethane pervaporation phenol / water separating membrane compounded by inorganic particles, and belongs to the field of pervaporation membrane separation. The polyurethane membrane basic material is obtained by polymerizing and mixing monomer hydroxyl-terminated polybutadiene, toluene diisocynate, 4,4'-diamine diphenylmethane solution, cyclodextrin and silica or carbon fiber powder. The preparation method comprises the following steps: reacting hydroxyl-terminated polybutadiene with toluene diisocynate to obtain blocked prepolymer, then adding 4,4'-diamine diphenylmethane solution and cyclodextrin as chain extenders to perform the chain extension, and adding inorganic modified particle silica or carbon fiber powder (using N,N-dimethylacetamide as solvent) to obtain prepolymer solution of polyurethane; casting the solution on a polyfluortetraethylene plate to form a membrane, solidifying for 1-1.5 hours at room temperature, and moving the membrane to an oven at 80 DEG C to thermally treat to obtain the polyurethane membrane compounded by inorganic particles. The preparation method disclosed by the invention is simple in process, and the prepared membrane has good heat and chemical stability and mechanical property.

The invention discloses a clamp for detecting of an automobile covering part. The clamp comprises a fixing seat, wherein two fixing rods are welded to the top end of the fixing seat; a connecting rodthrough hole is formed in each fixing rod; connecting rods are mounted into the connecting rod through holes in a sliding manner, and two ends of the connecting rods extend out of the connecting rod through holes; fixing blocks are arranged at two sides of the fixing seat; a connecting rod groove which is in sliding connection with each connecting rod is formed in one side, close to the corresponding fixing rod, of each fixing block; one end of each connecting rod extends out of the corresponding connecting rod groove; a rotating shaft groove is formed in one side, in the corresponding connecting rod groove, of each connecting rod; first rotating shafts are rotatably mounted in the rotating shaft grooves. The clamp is simple in structure, and convenient to use; the clamping accuracy of theclamp is improved; the fine adjusting can be carried out, so that the clamping work can be conveniently performed; the automation degree is high; the clamp is capable of damping, so that the damage to the automobile covering part is reduced; the time is saved; and the working efficiency is improved.

The invention discloses a vibration-damping heat-insulation paint which comprises the following components by mass percent: 9.5-11.5% of chlorine ether resin, 5-6% of adhesive, 3.5-4.5% of melamine urea copolymerization resin, 18-21% of environment-friendly solvent, 14.5-16.5% of soft filler I, 13-15% of soft filler II, 18-20% of soft filler III, 3.8-5.8% of plasticizer, 1.5-2.3% of titanium pigment and 4-6% of hollow micro-bead. The invention also discloses a preparation method of the vibration-damping heat-insulation paint. The high-efficiency vibration-damping heat-insulation paint can be coated on various substrates, has advantages in various aspects such as heat insulation, heat preservation, fire prevention, water prevention, crack prevention, noise prevention, weather resistance, acid / alkali resistance, salt-fog resistance, corrosion resistance, vibration damping, durability and the like, is suitable for thermal protection and vibration damping at the external surfaces of spaceflight instruments and data recording instruments of aerospacecrafts and can be used for damping the impact friction and the like of containers and the like.

A bridge damping blocking tenon device can satisfy the horizontal lateral-pushing resisting rigidity of a bridge body under normal service condition of vertical direction, crosswise direction and longitudinal direction under normal impact load, and further can consume energy in the vertical direction, so as to effectively improve the earthquake resistance of a bridge. The bridge damping blocking tenon device comprises a sleeve, elastic steel plates and a damping blocking tenon; the damping blocking tenon comprises a lower conical column structure section and an upper rectangular structure section; the upper parts of the upper rectangular structure section and the lower conical column structure section are arranged in the rectangular inner cavity of the sleeve; the semi-lunar elastic steel plates are arranged on two sides of the upper part of the lower conical column structure section in the transverse direction of the bridge, the upper ends of the elastic steel plates are blocked in the intersection part of the upper rectangular structure section and the lower conical column structure section, and the lower ends of the elastic steel plates are blocked between the bottom surface of the rectangular inner cavity of the sleeve and the lower conical column structure section. The side wall of the sleeve is fixedly connected to a base plate and is connected with the transverse side wall of the bridge body by high-strength bolt assemblies. The lower end of the lower conical column structure section is fixedly connected with a mounting base and is fixedly connected with a pier stud by high-strength bolt assemblies.

The invention discloses a flame retardant low foaming polypropylene material and a preparation method thereof. The material comprises, by mass, 10 to 90% of polypropylene, 5 to 30% of a thermally decomposing inorganic substance, 3 to 40% of a halogen-free fire retardant, 1 to 20% of a thermoplastic elastomer, 0.1 to 1% of an anti-oxidant, 0.1 to 3% of a lubricant and 0 to 5% of a functional auxiliary agent. According to the invention, the inorganic substance with low thermal decomposition temperature is added into a polypropylene resin as a foaming agent, and water vapor generated in the decomposition of the inorganic substance is utilized for formation of bubbles; the halogen-free fire retardant is added at the same time, which enables the polypropylene resin to have a certain degree of flame resistance, thereby enlarging the utilization scope of the polypropylene resin; a pre-foaming polypropylene material is obtained through blending fusion extrusion and granulation of an obtained mixture with an extruder, and then a variety of foaming products are produced by utilizing molding equipment like injection molding or mould pressing equipment.

The invention provides an environment-friendly building gravel smashing device and belongs to the field of buildings. The environment-friendly building gravel smashing device comprises a smashing box,smashing rollers, a filtering net, a dust suction pipe, a washing box, wheels, a suction pump, a dust collecting box and a plurality of smashing blades, wherein the wheels are disposed on wheel seatsand can roll in the wheel seats; the smashing box is welded to the upper ends of two supports; the multiple smashing blades are welded to a smashing shaft; the smashing rollers are fixedly disposed on rotary shafts and disposed in a material guiding box; the filtering net is fixedly disposed in the right side of the upper end wall of the smashing box; the dust collecting box is welded to the right side surface of the smashing box; the suction pump is fixedly disposed on a supporting plate; and the washing box is fixedly disposed on the right side of the upper end of the supporting plate. Theenvironment-friendly building gravel smashing device is reasonable in design, a two-level smashing design is adopted, the smashing effect is good, filtering and washing are performed at the same time,dust can be effectively filtered out, the working environment is improved, and the incidence rate of lung disease of workers is lowered.

The invention relates to a CPE / CPVC rubber-plastic thermal-insulation material and a preparation method thereof and belongs to the field of polymer synthesis and processing application. The CPE / CPVC rubber-plastic thermal-insulation material is prepared from 100 parts by mass of CPE / CPVC resin, 1.5-10 parts by mass of a stabilizing agent, 0.3-3 parts by mass of a composite lubricant, 10-50 parts by mass of a plasticizer, 0.3-5 parts by mass of a foaming agent, 0.4-1.0 part by mass of a foaming aid, 1-4 parts by mass of a foaming adjustment agent, 0-15 parts by mass of a fire retardant and 0-20 parts by mass of a filling material. The CPE / CPVC rubber-plastic thermal-insulation material has excellent performances such as softness, flexing damage resistance, cold resistance, heat resistance, flame retardation, water resistance, low heat-conduction coefficient, cushioning effect and sound absorption and has ideal use effects in the aspect of thermal insulation for heat loss prevention. The preparation method of the CPE / CPVC rubber-plastic thermal-insulation material is simple and continuous, has high production efficiency, is suitable for streamline batch production and can be widely used in industries of building, light textile, medicine, chemical engineering, metallurgy and ship-building.

The invention discloses an anti-collision device for a house building aseismic joint and relates to the technical field of house buildings. The device comprises a first wall and a second wall, a buffer device is arranged between the first wall and the second wall and comprises damping layers, mounting plates, buffer springs, first rotation rods, second rotation rods and a buffer rod, and each mounting plate is fixedly connected to one side of the corresponding damping layer; the middle of one side of each mounting plate is fixedly connected to one end of the corresponding buffer spring, the corresponding first rotation rod is arranged at the upper end of one side of each mounting plate, and the corresponding second rotation rod is arranged at the lower end of one side of each mounting plate. According to the anti-collision device for the house building aseismic joint, through the damping layers, the mounting plates, the buffer springs, the first rotation rods, the second rotation rodsand the buffer rod, during an earthquake, collision of buildings can be effectively reduced, the device has the damping effect so that the building cannot be damaged, and the problem is solved that under the effect of the earthquake, the buildings at the two sides of an existing house building aseismic joint are easily collided.

The invention discloses a high-flame-retardant bubble heat insulation material. A flame-retardant polyethylene bubble layer is used as a middle basic layer, a first flame-retardant polyethylene layer is attached to the upper surface of the flame-retardant polyethylene bubble layer, a flame-retardant polyester polymer film layer is attached to the upper surface of the first flame-retardant polyethylene layer, a first aluminum film layer is attached to the upper surface of the flame-retardant polyester polymer film layer, a second flame-retardant polyethylene layer is attached to the lower surface of the flame-retardant polyethylene bubble layer, a flame-retardant woven cloth layer or a flame-retardant non-woven layer which is made of polyethylene or polypropylene and has the thickness of 10-100 microns is attached to the lower surface of the second flame-retardant polyethylene layer, and a second aluminum film layer is attached to the lower surface layer of the flame-retardant woven cloth layer or the flame-retardant polyethylene layer. The high-flame-retardant bubble heat insulation material has excellent performance, such as high flame retardation, high heat insulation, high corrosion resistance, high strength, shock absorption, and the like.

The invention discloses a liquid level detection device and a liquid level detection method. The liquid level detection method comprises the following steps that: through a probe movement mechanism, driving a probe to carry out reciprocating motion relative to the liquid level of metal liquid in the liquid storage containing chamber of continuous casting equipment; through a probe position detection device, detecting the displacement information of the probe in real time, and sending the displacement information of the probe to a controller; and at a moment when the probe is in contact with the liquid level of the metal liquid in the liquid storage containing chamber, forming a loop by an electric signal conduction detection device, the probe and the continuous casting equipment, detectingloop conduction information by the electric signal conduction detection device, sending the loop conduction information to the controller, and judging the liquid level height of the metal liquid in the liquid storage containing chamber of the continuous casting equipment according to the loop conduction information and the displacement information of the probe. By use of the liquid level detection method, the liquid level of the metal liquid can be effectively detected so as to guarantee that vertical continuous casting equipment can successfully cast high-quality metal blanks.

The invention discloses an ore crushing device with a dust prevention structure for mine mining. The ore crushing device with the dust prevention structure for mine mining comprises a first crushing cavity, a second crushing cavity, a filter plate, a flowing guide dust prevention plate and a filter screen. A feeding port is formed in the upper end of the first crushing cavity, a second rotary shaft is connected to the output end of a second driving motor, the filter plate is mounted in the second crushing cavity, discharging ports are formed in the lower ends of the first crushing cavity and the second crushing cavity, and valves are mounted on the surfaces of the discharging ports. The head and tail ends of the filter screen are connected with the inner wall of a material collecting box through mounting blocks, and a damping device is mounted between supporting frames. According to the ore crushing device with the dust prevention structure for mine mining, a main position rod can be driven to rotate in the function of driving motors, a first time of striking and stirring for crushed stone is facilitated, so that the crushed stone generates cracks, each surface of the crushed stonecan be struck completely, so that convenience is brought for the subsequent crushing working, and the improvement of the working efficiency of ore crushing is facilitated.

The invention relates to an ice and snow removing device, in particular to a combined ice and snow removing device for breaking and crushing ice and snow and blowing snow. The combined ice and snow removing device for breaking and crushing ice and snow and blowing snow is characterized in that an ice and snow breaking part is arranged in front of a connection supporting frame body part; a side snow discharging part is arranged below the side of the connection supporting frame body part; a snow blowing and removing part is arranged behind the side snow discharging part; and an ice and snow crushing part is arranged below the connection supporting frame body part. The combined ice and snow removing device for breaking and crushing ice and snow and blowing snow has the beneficial effects of being simple in structure, performing mechanical transmission, being suitable for cold region operation and low in fault rate, making blade replacement convenient and being long in service life of blades; full-system one-time ice and snow removal for breaking ice, crushing ice, pushing ice and snow and blowing ice and snow can be achieved; a road surface and a road surface marking line are not damaged; and the combined ice and snow removing device for breaking and crushing ice and snow and blowing snow has the functions of absorbing shock, crossing obstacles and automatically controlling pressure.

The invention discloses a polyester fiber reinforced PVC (polyvinyl chloride) composite material with an intermediate foaming layer and a preparation method of the material. The composite material sequentially comprises a PVC surface film layer, a PVC paste layer, a PVC micro-foaming paste layer, a polyester fiber screen-cloth base material, a PVC micro-foaming paste layer, a PVC paste layer and a PVC bottom film layer from top to bottom. The polyester fiber reinforced PVC composite material with the intermediate foaming layer has the characteristics of light weight, softness in hand-touching, bending resistance, good low-temperature bending resistance, heat insulation, shock absorption and the like and also has the advantages of environmental friendliness, precipitation duration and the like.

The invention relates to an integrally formed carriage plate for a van and a manufacturing technology. The outer layer of the carriage plate is made of glass steel, and a PVC foam plate is adopted as an interlayer. The technology comprises the following steps that 1, demoulding material processing and room-temperature curing are performed; 2, a surfacing mat, a composite mat, the PVC foam plate and a diversion composite mat are laid; 3, omega tubes and a winding pipe are fixed, sealing adhesive tapes are bonded, and a demoulding cloth and a vacuum bag are laid to form a vacuum system; 4, the vacuum system is connected with a resin collector in a sealed mode, and the leakproofness of the vacuum system is detected; 5, vacuum pressure maintaining is performed; 6, resin is prepared and poured in a vacuum mode; 7, solidifying, demoulding and postprocessing are performed. Compared with prior art, the PVC foam plate is used as the interlayer, and therefore the advantages of being capable of achieving water resistance, flame retardance, acid and alkali resistance, moth proofing, light mass, high hardness, heat preservation, sound insulation and shock absorption; vacuum infusion and integrally forming are achieved, and therefore the two surfaces of the carriage plate are smooth.

The invention discloses a high-power container type diesel generating set. The high-power container type diesel generating set comprises an auxiliary container, a power container and a connecting metal flexible pipe which is arranged between the auxiliary container and the power container, wherein the power container comprises a machine room and an electric appliance room, the machine room is internally provided with a diesel engine, a main generator, a starting motor, a storage battery and a charger, and the electric appliance room is internally provided with a high-voltage cabinet, a grounding cabinet and a control cabinet; the top part of the auxiliary container is in an open type, and a box door is in a shutter type; and the connecting metal flexible pipe comprises large-caliber steel wire braiding flexible pipes and small-caliber steel wire braiding flexible pipes, two large-caliber steel wire braiding flexible pipes are connected by adopting a movable flange, and two small-caliber steel wire braiding flexible pipes are connected by adopting a quick-change connector. According to the high-power container type diesel generating set disclosed by the invention, the generator and an auxiliary unit are respectively arranged in the two box bodies, the two box bodies are connected by adopting the steel wire braiding flexible pipes, and thus the high-power container type diesel generating set can effectively adapt to places with large environmental temperature difference and strong sandstorm and has the characteristics of noise reduction, shock absorption, easiness in disassembling and hoisting and the like.

The invention belongs to the technical field of medical equipment, and particularly relates to an infusion support which comprises a suspension device. A base is connected with the suspension device by a support device, the suspension device comprises a rotary head, the support device comprises an upright rod, the upper end of the upright rod extends into the rotary head and is slidably connectedwith the rotary head by a bearing, a transverse rod is connected with the rotary head, two through holes are formed in the transverse rod, first hanging rings are arranged in the through holes, hanging hooks which are used with the first hanging rings are arranged in the first hanging rings, a hanging frame for placing infusion bottles is fixedly connected with the hanging hooks and comprises a fixing component, a blocking component is connected with the lower end of the fixing component by a tightening component, and the cylindrical fixing component is made of light plastics. The infusion support has the advantage that infusion needles can be prevented from being deviated due to shaking of the infusion bottles when the infusion support moves.

The invention discloses a pipeline penetration structure and relates to the field of pipeline vibration reduction. The system comprises a transition pipe and two corrugated pipes, wherein a sleeve is arranged on the transition pipe in a sleeving manner, and a containing chamber is formed between the transition pipe and the corrugated pipes and is filled with damping materials; the two corrugated pipes are respectively arranged on two sides of the sleeve and respectively arranged at two ends of the transition pipe in a sleeving manner; one end, which is close to the sleeve, of each of the corrugated pipes is connected with the sleeve; an annular plate is arranged on an end face, which is far away from the sleeve, of each of the corrugated pipes; meanwhile, the transition pipe, the sleeve, the corrugated pipes and the annular plate form a sealed area together in a surrounding manner, and the containing chamber is formed in the sealed area. According to the pipeline penetration structure provided by the invention, a cabin space can be effectively sealed, leakage of hazardous substances in the cabin is avoided, the other corrugated pipe can achieve a sealing effect when one corrugated pipe is damaged, and the sealing safety and reliability of the cabin are greatly improved. In addition, the corrugated pipes have buffering and damping effects, and metal corrugated pipes are particularly applied to special application fields at a high cabin temperature.

The invention discloses an aerogel composite material and a preparation method thereof. The aerogel composite material is characterized in that the aerogel composite material is composed of aerogel particles and a heat insulation inorganic adhesive, the aerogel particles are hydrophobic aerogel particles or aerogel particles with internal hydrophobic and surface hydrophilic structure characteristics, and the heat insulation inorganic adhesive is composed of an inorganic adhesive and a heat insulation filler. The invention provides the preparation method of the aerogel composite material. The preparation method comprises the following steps: (1) coating the surfaces of aerogel particles with a heat-insulating inorganic adhesive; and (2) before the heat-insulating inorganic adhesive is cured, stacking the aerogel particles of which the surfaces are coated with the heat-insulating inorganic adhesive in the step (1), conducting pouring molding and curing, so as to obtain the aerogel composite material. The aerogel composite material provided by the invention has excellent thermal insulation and fireproof performance and ideal flexural and compressive strength, and also has sound insulation, damping and energy absorption characteristics; and the aerogel still retains an original nano-porous structure, so that the material can be applied to the fields of energy-saving buildings suchas building outer walls, inner walls and partition walls and the fields of aerospace, national defense military industry, transportation and the like, and has a huge market prospect.

Disclosed is a water-air combined medium non-coupled rapid explosive charging device for tunnel extra-large cross section deep-hole rock blasting fragmentation. The device comprises a drilled hole, a first mixing explosive-charging system, a second mixing explosive-charging system, a third mixing explosive-charging system, structural cavity systems, combined medium systems, a first connecting sleeve, a second connecting sleeve, a combined blocking system, explosive, detonators and leading wires. The water-air combined medium non-coupled rapid explosive charging device for tunnel extra-large cross section deep-hole rock blasting fragmentation is provided by the invention, has the characteristics of low cost, high efficiency, reliable performance and good shock absorption and dust prevention effects and also has the following advantages that rapid explosive charging is achieved; the explosive-charging structure is accurate; the length of deep holes is accurately measured; and shock absorption, high energy utilization rate, good reliability, low cost and the like are achieved.

The invention provides wear-resistant rubber and a preparation method of the rubber, as well as a double-hardness and double-physical-property rubber sole and a preparation technology of the sole. The wear-resistant rubber can be obtained through the steps of: weighting required materials in proportion, then implementing closed milling, implementing opened milling, implementing vulcanization, and measuring a vulcanization curve. According to the double-hardness and double-physical-property rubber sole, a wearing-prone part of a heel is made from the wear-resistant rubber, while other parts are made from common rubber. The sole can be obtained through the steps of getting the wear-resistant rubber for later use, shaping a wear-resistant block by oil pressure, shaping a big sole, and post-treating. According to the sole produced by the formula and the production technology, the product cost is lowered and simultaneously the requirements of different people are met; and the produced finished product sole is improved in appearance grade and has the effects of good quality, comfort, wear resistance, shock absorbing, and the like.