42results about How to "Has a drainage effect" patented technology

The invention discloses a parking brake module for a rail vehicle, a brake cylinder and a brake clamp unit. The parking brake module comprises a parking cylinder; a first parking piston is arranged in the parking cylinder; a hand brake mechanism is arranged in the parking cylinder, and comprises a parking rod, a rotating wheel and a parking pin; the first parking piston is fixedly connected with the parking rod; a chute is formed in the parking rod; a slide piece clamped on the parking rod is arranged on the inner wall of the rotating wheel corresponding to the chute; and the slide piece is matched with the chute to prevent the parking rod from moving in the radial direction. As the parking rod and the rotating wheel in the parking brake module adopt a buckling fixation mode, when the parking braking is performed, the rotating wheel and the parking pin cannot slide in the parking braking process to effectively prevent wear of the parking pin.

The invention provides a method for carrying out dynamic compaction composite treatment on a sludge soil foundation through gravel piles, a drain board and an upper filling body, and belongs to the technical field of building foundation treatment. The method comprises the steps that S1, a construction cushion layer is laid; S2, construction of the gravel piles is achieved, and a vibration sunken tube method is adopted; S3, geotechnical cloth and a cushion layer below the tops of the gravel piles are laid; S4, construction of the plastic drain board is achieved; S5, an upper cushion layer and geotechnical cloth are laid; and S6, layered and staged dynamic compaction of the filling body is achieved. By means of the method, the advantages of preloading and dynamic compaction dynamic consolidation of the gravel piles and the plastic drain board are achieved fully, the advantages are complemented, and the defects of a single foundation treatment method are avoided.

The invention provides a low-loss coaxial cable, and belongs to the technical field of cables. The low-loss coaxial cable comprises an internal conductor, wherein an insulation layer, an external conductor layer, a dielectric layer, a shielding layer, an internal sheath, a water absorption layer and an outer sheath sequentially wrap the internal conductor, water absorption particles are filled inthe water absorption layer, a plurality of axial grooves are formed in an outer surface of the outer sheath and extend along an axial direction, and the axial grooves are connected with a circumferential groove encircling the outer sheath by a circle. The low-loss coaxial cable has the advantages of favorable waterproof performance, high strength, low dielectric and low loss.

The invention provides an expansion joint component. The expansion joint component comprises a first fixed strut member, a second fixed strut member, and an elastic waterproof member, wherein the first fixed strut member is suitable for being fixedly mounted on a building positioned on one side of an expansion joint, and is provided with a first connecting groove of which the opening faces upwards; the second fixed strut member is suitable for being fixedly mounted on a building positioned on the other side of the expansion joint, and is provided with a second connecting groove of which the opening faces upwards; a first connecting bulge and a second connecting bulge are arranged on the back of the elastic waterproof member in a protruding manner; the first connecting bulge is inserted in the first connecting groove and is fixedly connected with the first fixed strut member; the second connecting bulge is inserted in the second connecting groove and is fixedly connected with the second fixed strut member. The expansion joint component disclosed by the invention is simple in structure, and is easy to mount; the elastic waterproof member can well cover the expansion joint, so that water can be prevented from entering the expansion joint; when the elasticity of the elastic waterproof member is lowered, water can only flow into the first connecting groove and / or the second connecting groove from the upward openings and flow out from an opened opening at one end, and the water cannot enter the expansion joint; therefore, the waterproof effect of the expansion joint component is good.

The invention belongs to the technical field of wet paper cutting and particularly relates to a wet paper cutting device, comprising a moving frame. A nozzle seat is slidably connected to the moving frame and is fitted with a nozzle, the nozzle is connected with a water pipe, the water pipe is connected with a water supply box through a high-pressure water pump, mesh fabric is disposed below the nozzle and is spread on an adsorbing device, the adsorbing device comprises an adsorbing box, the adsorbing box is internally provided with a water suction cavity, the upper end surface of the adsorbing box is a horizontal surface and is provided ith a plurality of water suction openings in communication with the water suction cavity, the water suction openings are transversely and evenly distributed along the upper end surface of the adsorbing box and are parallel to one another, the adsorbing box is connected with the water supply box through a return water pipe, the return water pipe is provided with a return water pump, and the adsorbing box is also connected with a negative pressure device capable of sucking out air in the water suction cavity. The wet paper cutting device is reasonable in overall design and simple in structure.

The invention belongs to the field of waterproof coiled material devices and particularly provides an auto-adhesive auto-drainage waterproof coiled material which includes a high-molecular sheet material. The middle part of the lower end of the high-molecular sheet material is a fabric reinforced layer. An auto-adhesive glue layer and an insulation layer are successively connected to the lower end of the sheet material. A plurality of dense grooves are formed in the high-molecular sheet material. The auto-adhesive auto-drainage waterproof coiled material includes two types; one is the auto-adhesive auto-drainage waterproof coiled material with the fabric reinforced layer, while the other one is the auto-adhesive auto-drainage waterproof coiled material without the fabric reinforced layer. The waterproof coiled material is convenient to construct, has drainage function and integrates both waterproof and drainage functions. The auto-adhesive glue can effectively avoid water seepage and reduces water leakage. The coiled material can reduce comprehensive cost of engineering, reduces construction period, reduces repair rate, greatly reduces labor intensity, saves use quantity of building materials, such as cement, water drainage boards and the like, and avoids waste due to engineering construction and production.

The invention discloses a liquid matter absorbing material for human bodies and a sanitary towel and a wound dressing prepared by the liquid matter absorbing material. The components of the liquid matter absorbing material for human bodies comprise macromolecular resin, active carbon, white lime and cotton pulp. The liquid matter absorbing material for human bodies can be used as the materials for manufacturing the sanitary towel and the wound dressing. As the invention comprises the four components of the macromolecular resin, the active carbon, the white lime and the cotton pulp, wherein, the macromolecular resin has excellent seal performances and can lead a contact surface to maintain proper humidity after absorbing water; the cotton pulp has the effect of flow conduction; the white lime has the effects of stanching, sterilizing and resisting infection; the active carbon and the cotton pulp can absorb poisonous matters; and the four components all have the absorption effect, thereby the absorption amount is large. The comprehensive effects of the four matters can improve the absorption speed; therefore, the invention can solve the problem existing in the existing liquid matter absorbing material for human bodies.

The invention discloses a waste gas treatment device used for catalytic combustion, and relates to the technical field of waste gas treatment. The waste gas treatment device comprises a treatment mechanism, a heating chamber, a catalytic chamber, a gas inlet pipe, a gas outlet pipe, a negative pressure pump, a first valve, a driving motor, a rotating roller and a spiral blade. The heating chamber and the catalytic chamber are formed in the treatment mechanism, the heating chamber is located above the catalytic chamber, the gas inlet pipe is arranged at the top of the treatment mechanism, the negative pressure pump is arranged on the surface of the gas inlet pipe, the gas outlet pipe is arranged at the bottom of the right side of the treatment mechanism, and the first valve is arranged on the surface of the gas outlet pipe. According to the device, a catalyst and waste gas can be fully mixed, the mixing time of the catalyst and the waste gas can be shortened, the waste gas can be more comprehensively catalyzed, fine solid impurities in the gas can be filtered, meanwhile, the quality of a catalytic product is improved, the filtering function is enhanced, and the practicability of a filtering mechanism in the waste gas treatment device used for catalytic combustion is improved.

The invention discloses an internal gallbladder drainage tube. An elastic loop pipe, a drainage tube section I and a drainage tube section II, which mutually communicate, are sequentially arranged from the head to the tail of the drainage tube; the drainage tube section I is of an arc-like structure, with an arc opening facing the elastic loop pipe; the drainage tube section I comprises an arc tube section I and an arc tube section II which sequentially communicate; the arc tube section I communicates with the elastic loop pipe; a part where the arc tube section I is connected to the arc tubesection II is deviated from the direction of the axial arc tube section II by 45-60 degrees; the arc tube section II communicates with the drainage tube section II; the head section of the arc tube section I extends along the direction of the elastic loop pipe; barbs are arranged at the lower end of the outer wall of the inner side of the arc tube section II; the drainage tube section II is represented as a single pigtail; the elastic loop pipe, the arc tube section II and the drainage tube section II are provided with bile drainage holes; and through holes are formed in the head of the elastic loop pipe. According to the internal gallbladder drainage tube provided by the invention, the head of the elastic loop pipe I is of a conical structure; and the internal gallbladder drainage tube, which is provided with a hydrophilic coating on the outer wall, can enter gallbladders through duodenal papillae and cystic gall ducts more easily.

The invention discloses a lumbar vertebral puncture needle assembly with positioning and color rendering functions, including mating guide needles, a lumbar puncture needle and a needle core, the needle core is separated from the inner wall of the lumbar puncture needle, the peripheral surface of the lumbar puncture needle is provided with a plurality of perforations, a lead pin is fixedly arranged in that position seat, the positioning seat is a transparent plastic seat, the bottom surface of the positioning seat is connected with a medical adhesive tape, the positioning seat is provided witha vertical through hole arranged coaxially with the guide needle, A lumbar vertebral puncture needle passes through a vertical through hole and is matched with a guide needle. The positioning seat comprises a color developing base and a drainage top seat, wherein the color developing base is provided with a color developing groove communicated with a vertical through hole, the color developing groove is filled with a color developing liquid for cerebrospinal fluid, a communication port is provided on the drainage top seat, and the drainage top seat is provided with a rotary switch matched with the communication port. The invention has the advantages of accurate and stable positioning, convenient drainage, convenient observation of the puncture effect through the color developing base, andno need of frequently pulling and inserting the needle core.

The invention relates to a socket clevis convenient for automatically identifying defects and belongs to the technical field of electric power fittings. According to the invention, hanging plates aresymmetrical frame-shaped bent plates and are connected with sleeve bowls in a sleeved mode through the sleeve holes. The sleeve bowls are automatically clamped on the bottom plate in a sleeved mode through the ball heads, the fence plates surround the ball heads, hinge joint of the sleeve bowls and the ball heads is achieved, image shooting blind areas can be reduced, and observation and automaticdefect recognition are facilitated. The sleeve bowl is of a split structure, drainage is smooth, and the sleeve of the sleeve bowl is in clearance fit with the sleeve hole and elastically abuts against the sleeve hole, so that the sleeve bowl is positioned and supported, and the relative position of the sleeve bowl and the bottom plate is kept. The bowl seat is automatically propped against the bottom plate by the ball head, so that the sleeve bowl can be prevented from accidentally falling off. The sleeve bowl is separated from the hanging plate, new materials and advanced processes are conveniently adopted for manufacturing, and light weight can be promoted. The snap spring is clamped into the snap spring groove of the sleeve to limit the sleeve bowl from moving rightwards, and the working state of the sleeve bowl is not affected. The automatic abrasion loss measuring method can eliminate image shooting angle and distance factors, and is simple, efficient and high in precision.

The invention discloses a biliary tract drainage stent with grooves on the surface, which comprises a drainage tube, a front positioning claw and a rear positioning claw, the drainage tube is a hollow tube extending along the long axis direction; the front positioning claw is fixed at a position close to the front end of the drainage tube, the rear positioning claw is fixed at a position close to the rear end of the drainage tube; a plurality of grooves extending in the long axis direction are formed in the peripheral wall of the middle portion of the drainage tube, and the middle portion of the drainage tube is located between the front positioning claw and the rear positioning claw. According to the biliary tract drainage stent, the plurality of grooves are formed in the peripheral wall of the drainage tube, the drainage effect is improved through the grooves, meanwhile, friction between the drainage tube and the inner wall of the biliary tract is increased, displacement of the biliary tract drainage stent at the biliary tract lesion obstruction position can be prevented, and medical risks can be reduced.

The invention provides a plastic track with a good water seepage effect. The plastic track with the good water seepage effect comprises a surface course, a base course, a bottom course and a soil course; a plurality of big water seepage holes are formed in the surface course; small water seepage holes are formed between adjacent big water seepage holes; the base course is arranged under the surface course; a plurality of big water collecting grooves are formed in the base course; small water collecting grooves are formed between adjacent big water collecting grooves; the bottom course is arranged under the base course; a plurality of big water drainage pipes are arranged within the bottom course; small water drainage pipes are arranged between adjacent big water drainage pipes; and the soil course is arranged under the bottom course. The plastic track with the good water seepage effect has the advantages that the water seepage property is good, the water can also rapidly seeps in rainydays so that the surface is kept dry and the use of the plastic track is not affected; and the utilization rate is increased.

A plate flushing water purifier comprises a water tank and a water treatment circulating system. The water treatment circulating system comprises an internal circulating system, an external discharge system and a treated water reuse system. In the internal circulating system, a water inlet end of a pressurized circulating pump is communicated with a water tank, a water outlet end of the pressurized circulating pump is communicated with a primary filter vat through a pipeline, the primary filter vat is communicated with a secondary filter through a pipeline, the secondary filter is communicated with an ultraviolet sterilization vat through a pipeline, and water treated by the ultraviolet sterilization vat returns to the water tank through the pipeline. In the external discharge system, a discharge filter is communicated with the pressurized circulating pump through a pipeline. In the treated water reuse system, a water supply pump is communicated with the water tank through a pipeline, and a filter cup is communicated with the water supply pump through a pipeline. The plate flushing water purifier is reasonable in structural design and high in water treatment efficiency, plate flushing water of a plate flushing machine can be repeatedly used, water consumption is greatly saved, and the water discharged after being used for a certain number of times can meet national secondary discharge standards by purification.

The invention discloses a rapid production method of Chinese chestnut wine, and relates to a wine production method. According to the method, a Chinese chestnut wine making device is used for producing Chinese chestnut wine. The device comprises a cooking device, a condensing unit and a mixing device, wherein the cooking device comprises a heater, a steaming drum and a pressure steam tank; the condensing unit comprises an air amplification drum and a centrifugal separation drum; the mixing device comprises a wine liquid inlet pipe, a mixing pipe, a separation liquid collecting hopper and a wine storage drum; the pressure steam tank is connected with the upper part of the steaming drum by a one-way valve; the centrifugal separation drum is arranged in the air amplification drum; a ring-shaped steam inlet is formed in the side wall of the upper end of the air amplification drum; the pressure steam tank is connected with the steam inlet by a pressure control valve; the mixing pipe is a venturi tube; the wine liquid inlet pipe is communicated with the mixing pipe; a material sucking tube is arranged on the side face of the mixing pipe; wine liquid enters the wine storage drum after being discharged out from the mixing pipe. The device blends separated liquid of Chinese chestnut and high-quality Baijiu, and can omit the long process of fermentation, so that the production time of the Chinese chestnut wine is shortened.

The invention discloses a medical trauma hemostasis composite dressing. The medical trauma hemostasis composite dressing is characterized in that dandelion fluff / viscose fiber non-woven fabric is used as a base material, non-woven fabric fibers and a surface layer are stuffed with a mucedin, oxidized sodium alginate and chitosan composite high polymer material in a vacuumizing mode, and the medical wound hemostasis composite dressing with high water absorption, good air permeability and antibacterial property is obtained. In addition, the medical trauma hemostasis composite dressing also has the effects of resisting adhesion, being high in hemostatic speed and promoting wound healing, and the wound healing time is shortened.

The invention discloses a smoke oil-gas-dust separation recycling system of an asphalt mixing station, which comprises a working box body, a mixing bin is mounted on one side of the outer top surface of the working box body, an electrical tar precipitator is mounted on one side of the top surface of the mixing bin, and a getter pump is connected between a smoke outlet at the top end of the mixing bin and the input end of the electrical tar precipitator; an oil collecting tank is connected to an oil outlet of the electrical tar precipitator through a pipeline, an oil pump is installed on the lower side of the oil collecting tank, an asphalt tank is fixed to the side, close to the mixing bin, of the inner bottom face of the working box body, a combustor is installed at the bottom end of the asphalt tank, a gas gathering pipe II is arranged on one side of the spiral guide pipe, and an induced draft fan II is arranged at one end of the gas gathering pipe II. The device is reasonable in design, a large amount of smoke, oil, gas and dust generated by stirring hot asphalt and various aggregates in the mixing bin of the asphalt mixing station can be effectively separated, and separated substances can be recycled.

The invention discloses a fixed-point type soil deep nutrient conveyor, and belongs to the technical field of soil conservation. Fertilizer is stored through a plurality of storage cylinders provided with storage cavities; during use, the conveyor is buried in a soil deep layer part, electromagnets at corresponding magnetic driving plates are started, and the electromagnets magnetically attract and pull magnetic push plates corresponding to the electromagnets in position; the magnetic push plates slowly move outwards under the action of extension springs and fertilizer resistance to extrude and push fertilizer towards one side of an outer oval permeable layer, and the fertilizer slowly seeps into soil through the outer oval permeable layer, and therefore, implementation of multi-point, fixed-point and deeper delivery of the fertilizer into soil is realized; and when follow-up material supplementation needs to be carried out, the electromagnets are turned off, the magnetic pushing plates retreat under the rebound action of the extension springs, then material supplementation is carried out into the storage cavities through embedded rods and conveying pipes, the materials are recycled, the fertilizer is slowly released, and the fertilizer is not prone to volatilization, and the fertilizer can be more easily and completely absorbed by soil.

The invention relates to a socket clevis convenient for automatically identifying defects and belongs to the technical field of electric power fittings. According to the invention, hanging plates aresymmetrical frame-shaped bent plates and are connected with sleeve bowls in a sleeved mode through the sleeve holes. The sleeve bowls are automatically clamped on the bottom plate in a sleeved mode through the ball heads, the fence plates surround the ball heads, hinge joint of the sleeve bowls and the ball heads is achieved, image shooting blind areas can be reduced, and observation and automaticdefect recognition are facilitated. The sleeve bowl is of a split structure, drainage is smooth, and the sleeve of the sleeve bowl is in clearance fit with the sleeve hole and elastically abuts against the sleeve hole, so that the sleeve bowl is positioned and supported, and the relative position of the sleeve bowl and the bottom plate is kept. The bowl seat is automatically propped against the bottom plate by the ball head, so that the sleeve bowl can be prevented from accidentally falling off. The sleeve bowl is separated from the hanging plate, new materials and advanced processes are conveniently adopted for manufacturing, and light weight can be promoted. The snap spring is clamped into the snap spring groove of the sleeve to limit the sleeve bowl from moving rightwards, and the working state of the sleeve bowl is not affected. The automatic abrasion loss measuring method can eliminate image shooting angle and distance factors, and is simple, efficient and high in precision.

The invention relates to the field of plant cultivation, in particular to a vegetative structure body for plants and a preparation method of the vegetative structure body. The vegetative structure body for plants mainly includes polymer polyurethane, plant fiber, ore and fertilizer, and gaps are formed among the ore in the structure body, so that the vegetative structure body can have the effectsof air permeability and water drainage, and respiration of plant roots is promoted; and the growth of the plant roots can be induced through fertilizer components in the structure body, the plant fiber in the structure body has the effects of water absorption and water retention, and the plant fiber has change of color depth due to change of humidity, so that the water content in the structure body is observed by a user, and the effect of water control for plant cultivation is achieved by the user. In addition, not only can the plant vegetative structure body be adopted as a planting carrier for plants, but also the crushed plant vegetative structure body can be used as a medium for plant cultivation, and environmental protection is achieved; and the preparation method can be carried out at normal temperature without heating, compression moulding and steps, and the production cost is low.

The invention relates to plant composition dressing capable of promoting regeneration of hair follicles for large-area trauma. The plant composition dressing comprises fixed plant compositions. The fixed plant compositions comprise pine needles, herba agrimoniae, leaves of platycladus orientalis, radix sanguisorbae, olibanum and natural borneolum syntheticum, freeze-dried powder can be formed whena proportion of the sum of the weight of the pine needles and the weight of the herba agrimoniae to the weight of the leaves of the platycladus orientalis to the sum of the weight of radix sanguisorbae and the weight of the olibanum to the weight of the natural borneolum syntheticum is 10:8:3:1, 8% of freeze-dried powder and lake algae are mixed with one another to obtain mixtures, and then cross-linking is carried out on the mixtures and chitosan under the condition of a ratio of 1:20 to prepared the plant composition dressing. The plant composition dressing has the advantages that quick healing of large-area trauma and wound can be promoted by the plant composition dressing, effects of repairing and regenerating the hair follicles at trauma parts can be realized by the plant compositiondressing, and the plant composition dressing is safe and economical and is free of side effect.

The invention relates to the technical fields of cutting tools, particularly to a deep hole forming tool. The deep hole forming tool comprises a tool shank and a cutting module at the front end of the tool shank, wherein the cutting module is composed of a third cutting unit connected with the tool shank, a second cutting unit at the front end of the third cutting unit, and a first cutting unit at the front end of the second cutting unit; the third cutting unit and the second cutting unit are in a ball shape and are connected through a transitional smooth curved surface; the first cutting unit is composed of a taper unit connected with the second cutting unit, and a ball unit at the front end of the taper unit, and the small-diameter end of the taper unit is smoothly connected with the second cutting unit; the cutting module is provided with at least three screw cutting edges uniformly distributed in the circumferential direction of the cutting module, and the screw cutting edges are correspondingly provided with screw flutes and converge in the center of the front end of the first cutting unit. According to the deep hole forming tool, during a cutting process, the contact area between the cutting module and hole walls can be small, so that the possibility of tool tipping due to radial movement can be greatly reduced.

The invention belongs to the technical field of wet paper cutting and particularly relates to a wet paper cutting device, comprising a moving frame. A nozzle seat is slidably connected to the moving frame and is fitted with a nozzle, the nozzle is connected with a water pipe, the water pipe is connected with a water supply box through a high-pressure water pump, mesh fabric is disposed below the nozzle and is spread on an adsorbing device, the adsorbing device comprises an adsorbing box, the adsorbing box is internally provided with a water suction cavity, the upper end surface of the adsorbing box is a horizontal surface and is provided ith a plurality of water suction openings in communication with the water suction cavity, the water suction openings are transversely and evenly distributed along the upper end surface of the adsorbing box and are parallel to one another, the adsorbing box is connected with the water supply box through a return water pipe, the return water pipe is provided with a return water pump, and the adsorbing box is also connected with a negative pressure device capable of sucking out air in the water suction cavity. The wet paper cutting device is reasonable in overall design and simple in structure.

The invention relates to the field of disposable sanitation supplies, in particular to a channel type absorbing body which comprises an upper layer non-woven fabric, a lower layer non-woven fabric andan absorbing core arranged between the upper layer non-woven fabric and the lower layer non-woven fabric. A plurality of water-absorbing resin strips extending in the length direction are buried in the absorbing core. A waterproof thin film is arranged at the position, located above the water-absorbing resin strips, of the upper surface of the absorbing core. A plurality of guide water-absorbingresin strips bent towards one side are arranged on each water-absorbing resin strip. An adhesive part is formed between every two adjacent waterproof thin films with the upper layer non-woven fabric and the absorbing core through a hot melt adhesion mode. The technical problems that an existing absorbing body is poor in diffusion efficiency and not comfortable to wear are solved.

The invention discloses an LED lamp convenient for heat dissipation. The LED lamp comprises an LED module and a heat dissipation module, the heat dissipation module comprises a heat dissipation body,the two sides of the heat dissipation body are each provided with a breathable end cover, a groove is formed in the heat dissipation body, a fixing groove is formed in the groove, and the fixing groove, the groove and the breathable end covers form a heat dissipation cavity; the LED module is composed of a plurality of LED lamp bodies and arranged on the outer surface of the fixing groove. Lensesare arranged on the LED lamp bodies, and the LED lamp bodies are connected with the lenses through waterproof glue. A convection channel which is through left and right is formed among the ventilationcover plate, the fixing groove and the groove of the heat dissipation body, heat can be quickly removed. Meanwhile, the waterproof glue covers the LED lamp body, rainwater is prevented from splashinginto the LED lamp body, the service life of the LED lamp is prolonged, convenience is brought to people, the structure is simple, and the LED lamp is worthy of popularization.

The present invention relates to a plant combination dressing that can promote the regeneration of large-area wounded hair follicles, comprising a fixed plant combination composed of pine needles, Agrimony, Arborvitae leaves, Burnet, frankincense and natural borneol, in parts by weight of pine needles and parts by weight of Agrimony sum, the weight portion of Arborvitae leaves, the weight portion of Burnet and the sum of the weight portion of Olibanum, the ratio of the weight portion of natural borneol is 10:8:3:1 when forming a lyophilized powder, and 8% of the frozen After the dry powder is mixed with lake algae, it is cross-linked with chitosan at a ratio of 1:20 to make a plant combination dressing. The invention can promote rapid healing of large-area wounds, has the effect of repairing and regenerating hair follicles at wounds, and is safe, economical and has no side effects.

The invention discloses a bridge deck surface paved with an ice-melting functional layer and a method for melting ice by using the bridge deck surface. The bridge deck surface paved with the ice-melting functional layer comprises steel grids, a cement concrete layer, a water-proof coating layer, a conducting aggregate layer and an asphalt paving layer, wherein the steel grids form a three-layer cuboid structure; the lower layer steel grids are embedded into the cement concrete layer; the middle layer steel grids are filled with the cement concrete layer constructed by conducting aggregate; the upper layer steel grids are arranged in the asphalt paving layer; surface-untreated steel grids are paved at the two ends of the transverse section of a bridge deck at the distance a=(20-100) centimeters away from the outer side edges of the bridge deck; the surface-coated steel grids are paved on the middle part of the bridge deck; the surface-untreated steel grids at the two ends of the bridge deck are connected to the anode and the cathode of a power supply respectively. By adopting the bridge deck surface paved with the ice-melting functional layer disclosed by the invention, heat is generated after electrification to heat the asphalt paving layer, so that an ice-melting function is realized, and winter traveling safety is facilitated; the phenomenon of steel bar rusting on the bridge deck caused by spraying of a snow-melting agent is avoided.

The invention discloses a soil restoration device, which comprises a soil restoration basin, wherein a cover plate is arranged above the soil restoration basin; the cover plate is communicated with agas discharging pipeline; the gas discharging pipeline is connected with a gas recycling device; a stirring device is arranged in the soil restoration basin; the stirring device comprises a stirring shaft and a driving motor; blades are arranged on the stirring shaft; the inner wall of the soil restoration basin is downwards sunken to form a first annular groove, a second annular groove and multiple strip-type grooves; restoration agent conveying pipelines are laid in the first annular groove and the strip-type grooves; liquid discharging holes are formed in the side wall of the restoration agent conveying pipelines; the second annular groove is a flow guide slot; the flow guide slot is connected with a liquid discharging port; and the liquid discharging port is connected with a restoration liquid recycling device. The soil restoration device provided by the invention is reasonable in structural design and good in soil restoration effect.

The drainage device comprises a guiding pipe, a conveying pipe, a liquid collecting tank and an aspirator, the aspirator is installed at the top end of the liquid collecting tank, the conveying pipe is connected to the aspirator, the conveying pipe is connected with the guiding pipe through a sealing assembly, the liquid collecting tank is provided with a purifying mechanism, and the purifying mechanism is connected with the aspirator through a sealing assembly. The head part of the guiding tube is provided with a uniform guiding mechanism, the uniform guiding mechanism comprises a drainage ball installed at the head part of the guiding tube, the outer surface of the drainage ball is uniformly provided with liquid inlet holes, the drainage ball is internally provided with drainage branch tubes connected with the liquid inlet holes, and the drainage ball is fixedly provided with a connecting tube. The suction device has the beneficial effects that finally, a mounting cylinder corresponds to an insertion hole in the outer surface of a second wrapping sleeve, and an inserted rubber rod is inserted, so that the guide pipe and the conveying pipe can be fixed, a one-way air inlet valve needs to be designed on the air inlet pipe, air enters the one-way air inlet valve due to low air pressure in the inner cavity of the liquid collecting tank, and the suction device is prevented from being damaged.