34results about How to "Improve wind and sand resistance" patented technology

The invention discloses an electrified railway-used bar-shaped column type porcelain polymer composite insulator. The composite insulator comprises a porcelain core bar with more than one porcelain umbrella skirt. Two ends of the porcelain core bar are adhered with metal fittings via an adhering agent. The external surface of the porcelain core bar is covered with a polymer sheath with more than one polymer umbrella skirt. The surface of the porcelain core bar is processed via a coupling agent. The sheath and the umbrella skirt are solidified via high temperature and formed in one step on the porcelain core bar via an overall injection or pouring process. The umbrella skirt on the sheath comprises more than one large umbrella-shaped protrusion which is coaxially arranged with the porcelain core bar. The umbrella of the large umbrella-shaped protrusion is from 30mm to 60mm after the umbrella stretches out. The electrified railway-used bar-shaped column type porcelain polymer composite insulator which is pollution-flashover-resistant, bird-pecking-resistant and wind-and-sand-resistant is high in pollution flashover voltage so that crack and break in the process of using can be prevented. Meanwhile, the electrified railway-used bar-shaped column type porcelain polymer composite insulator has characteristics of being bird-trouble-resistant, wind-and-sand-resistant, external-force-damage-resistant and assistant in climbing and stepping.

The invention belongs to the technical field of power insulation equipment, and particularly relates to a hard composite insulator and a preparation method thereof. The hard composite insulator comprises an insulating core rod, hardware fittings, a hard sheath and a hard umbrella skirt. The hardware fittings are arranged at the two ends of the insulating core rod; the hard sheath covers the outersurface of the insulating core rod and extends to the surface of the fitting to form sealing. The hard umbrella skirt is arranged on the hard sheath. The hard umbrella skirt comprises more than one large umbrella-shaped bulge which is coaxially arranged with the insulating core rod. The preparation raw materials of the hard umbrella skirt and the hard sheath are the same, and at least comprise silicone rubber and/or plastic. According to the composite insulator, the bird pecking damage resistance, the sand wind resistance, the external force damage resistance and the aging resistance of the composite insulator are improved, the probability that the insulating core rod is exposed in the atmospheric environment is further reduced, the insulating core rod cannot be brittle failure due to external corrosion, and brittle failure accidents can be prevented in the using process of the composite insulator.

The invention relates to an overhead line system balance weight position monitoring device. The overhead line system balance weight position monitoring device comprises a shell, the shell is installed at the position, above a balance weight string, of a support in a hoisted mode, a displacement sensor, a battery, an internally-arranged antenna, a communication circuit and a collection circuit are installed in the shell, and the displacement sensor rightly faces the top surface of the balance weight string. According to the overhead line system balance weight position monitoring device, position change of the balance weight string can be monitored in real time, collected data are transmitted to a data center through wireless data transmission, unified data analysis by an operations management organization is facilitated, potential safety hazards of an overhead line system can be found timely and eliminated, the reliability and the safety of a tractive power supply system can be enhanced greatly, and the driving operation safety is ensured; and the product is simple in structure and easy to use, obvious in technical effect and capable of being widely applied to the occasions of design of overhead line system anchoring compensator on-line monitoring products, and meets the work requirements for the overhead line system in the field environment.

The invention provides an air-conditioning ventilation system for a rail passenger car and the rail passenger car. The system comprises an air-conditioning unit arranged under the car, an air supplying channel arranged at the car top, a vertical mixed air channel and a vertical air supplying channel, wherein an air inlet communicated with the outside of a car body and an air return port communicated with the inside of the car body are formed in the upper part of the vertical mixed air channel; the lower part of the vertical mixed air channel is communicated with the air-conditioning unit; and two ends of the vertical air supplying channel are communicated with the air supplying channel and the air-conditioning unit respectively. Air outside the car and return air inside the passenger car are mixed in the vertical mixed air channel and then enter the air-conditioning unit to be cooled or heated, and cooled or heated air enters the vertical air supplying channel and finally enters a passenger car room through the air supplying channel at the car top. A fresh air inlet and an air return port of the air-conditioning unit are formed in the vertical mixed air channel, and the vertical mixed air channel can be arranged inside the car, so that blown sand and particulate matters on a rail surface can be prevented from entering the air-conditioning unit, the blown sand resistance of the air ventilation system is improved, washing times of a filter screen are reduced, the replacement period is prolonged, and spaces at the car top and under the car are effectively used.

The invention discloses a compression connected type double-umbrella-shaped or three-umbrella-shaped disk-shaped suspension-type composite string insulator unit which comprises a core rod, hardware fittings arranged at the two ends of the core rod, and a protective sleeve arranged on the outside of the core rod in a covering mode. A double-umbrella-shaped or three-umbrella-shaped umbrella skirt extending along the circumference direction of the protective sleeve is arranged on the protective sleeve. The hardware fittings are connected to the core rod in a compression mode. Sealing structures are formed on outer surfaces of the hardware fittings after high-temperature solidification. The compression connected type double-umbrella-shaped or three-umbrella-shaped type disk-shaped suspension-type composite string insulator unit has the advantages of preventing bird troubles, resisting to sand blown by wind, resisting to damage by external force and being capable of assisting climbing.

The invention discloses a green corridor type regulating and storing system of a wandering river in an arid area. The green corridor type regulating and storing system includes a river channel regulating and storing belt arranged on a riverbed and slope stabilization belts arranged on river banks on the two sides. The river channel regulating and storing belt comprises aquatic vegetation, a cobblestone layer, a permeable paving layer, a vegetation planting soil layer and a water storing and collecting layer which are arranged sequentially from top to bottom. Each slope stabilization belt comprises a sand-proofing grid laid on the corresponding river bank and vegetation planted on the corresponding sand-proofing grid. When a flood season comes, the river channel regulating and storing beltin the green corridor type regulating and storing system provides a certain storage space and increases the capacity of flood discharging of a river channel. When a drought period comes, the purpose of recharging ecological base flow is achieved through water resources stored in the river channel regulating and storing belt.

The invention discloses padding used for stabilizing roots of plants in desertification regions and a use method thereof. The padding comprises a degradable inner wall, an outer wall, a planting hole and a bottom. A hollow structure between the inner wall and the outer wall and the planting hole are filled with filler made of the same material. The filler is prepared by mixing surrounding sand, sapropel, straw, local soil, humus and a microbial agent according to the volume ratio of 1:2:1:3:2:1. The top of the padding is open, the bottom of the padding is closed, and the planting hole allows the roots and stalks of the plants to penetrate. The filler can provide enough nutrients required by growth and development of the roots of the plants. The loose structure of the filler has a moisture storage function, the moisture retention time of the roots of the plants is prolonged, gas exchange between root systems and outside can be improved, the dissolved oxygen amount of the roots is increased, root respiration is promoted, a guarantee is provided for rooting, development and firm root taking of the root systems, the survival rate of the plants is increased, the vegetation coverage degree is improved, and the ecological functions of wind prevention and sand fixation, soil and water conservation and environment greening of the plants are played to the largest extent.

The invention discloses an underground drip irrigation type desert tree planting system which comprises a plurality of pile holes formed in a desert through punching equipment, the pile holes are evenly distributed around plants, a plurality of reamed holes are formed in each pile hole from top to bottom through a special hole reaming device, so that the whole section of each pile hole is in the shape of a long and thin Chinese character 'feng', a hollow pipe is installed in each pile hole, and seepage holes are formed in the positions, at the reamed hole positions, of the pipe body of each hollow pipe. The underground drip irrigation type desert tree planting system is low in cost, can be repeatedly used and degraded, and can sequentially guide plant roots to grow downwards so as to increase the depth of the roots and guide the roots to grow towards the periphery so as to form intertwining, so that the drought tolerance and the wind and sand resistance of the plants are improved, the survival rate of the plants is increased, the plants are connected to form forests, the strategy of continuous promotion can be effectively implemented to radically treat wind and sand and convert desert into forests, the ecological environment can be obviously improved, and more resources can be provided for human beings.

The invention discloses a polymer disc-shaped insulation piece for a disc-shaped suspension type insulator string element and a manufacturing method of the polymer disc-shaped insulation piece, wherein the polymer disc-shaped insulation piece for the disc-shaped suspension type insulator string element comprises an umbrella skirt, a glue mounting portion with a hollow cavity which is in the shape of an inverted cone is arranged in the center of the umbrella skirt, and the polymer disc-shaped insulation piece for the disc-shaped suspension type insulator string element is made of hydrophobic cycloaliphatic epoxy resin. According to the polymer disc-shaped insulation piece for the disc-shaped suspension type insulator string element and the manufacturing method of the polymer disc-shaped insulation piece, the hydrophobic cycloaliphatic epoxy resin is utilized, and therefore the wind and sand resistant ability and the external force damage resistant ability of the polymer disc-shaped insulation piece are enhanced, and damage to the polymer disc-shaped insulation piece due to pecking of birds can be prevented. Meanwhile, engineering personnel can step on the umbrella skirt in a certain range in a construction process when necessary, and therefore construction is benefited, and the safety factor of the engineering personnel in the construction process is increased.

The invention discloses a cementing type composite insulator chain element with a double-umbrella-shaped and three-umbrella-shaped disk suspension type polymer. The element comprises a steel cap fitting, a steel leg fitting, an insulation core part, a polymer protecting sleeve and a polymer umbrella skirt. A cavity with the U-shaped section is formed in the steel cap fitting. The steel leg fitting is provided with a conical head portion matched with the cavity. The conical head portion of the steel leg fitting is arranged in the cavity of the steel cap fitting. The insulation core part is arranged between the conical head portion and the cavity. A cementing part is arranged in the center portion of the insulation core part and is an inverted-cone-shaped cavity. The outer surface of the insulation core part is covered with the polymer protecting sleeve. The outer surface of the polymer protecting sleeve is provided with the polymer umbrella skirt of a double-umbrella-shaped or three-umbrella-shaped structure. The conical head portion of the steel leg fitting and the cementing part are cemented into a whole through adhesive. The cavity of the steel cap fitting and the cementing part are cemented into a whole through the adhesive. The element can prevent bird damage, resist sand wind, prevent external force damage and assist in climbing and treading.

The invention relates to a UHPC (ultrahighperformanceconcrete) box type steel tube concrete stiff skeleton column structure and a construction method thereof, which comprises four support columns of equal length.The support columns are connected throughrebar UHPC plates, so that a square structure with support columns located at four corners is formed;the support columns and the rebar UHPC platesare arranged in a full-length mode; the support columnsare composed ofsteel tube concrete columns and outer wrapping UHPC layerswrapping the steel tube concrete columns, each of the steel tube concrete columns comprises a steel tube and tube inner concrete arranged in the steel tube in a filling mode; the rebar UHPC plates comprise square UHPC plates located between two adjacent support columns, positioning blocks are arranged on the side, connected with the supporting columns, in the square UHPC plates, the positioning blocks of the two adjacent support columns are connected through reinforcing meshes, and fixedly connected rebars erected and distributed in a staggered mode form the inside of the reinforcing mesh,the UHPC boxtypesteel tube concrete stiff skeleton column structureisreasonable in structure, good in ductility, high in bearing capacity, high in rigidity, light in self-weight, and good in durability, and the occupied space of pier studs is effectively reduced.

The invention discloses a desert mask with a ventilation function, and relates to the field of masks. The desert mask comprises a front mask, a rear mask and two side masks, the front mask, the rear mask and the two side masks are mutually woven, the surface of the front mask is provided with eye openings, the surfaces of the two side masks are provided with ear openings, the surface of the front mask is provided with a mouth breathable layer and a nose breathable layer, the nose breathable layer is located at the bottoms of the eye openings, the mouth breathable layer is located at the bottom of the nose breathable layer, the surfaces of the two side masks are provided with ear breathable layers, the ear breathable layers are arranged around the ear openings in a surrounding mode, and a plurality of air holes are formed in the surfaces of the mouth breathable layer, the nose breathable layer and the ear breathable layers. The mouth breathable layer, the nose breathable layer and the ear breathable layers are perforated by using a perforating machine, so that the breathable holes are formed, and due to the fact that inner layer openings of the breathable holes are large and outer layer openings are small, breathing of a wearer can be more convenient, and inhalation of sand is effectively reduced.

The invention discloses a contact type unmanned aerial vehicle automatic charging device which comprises a shell, heat dissipation holes, a protection shell, a sponge pad, a connecting plate, a protection shell motor, a rotating rod, a charging pole plate, a relay, a voltage detection module, a main control chip, a battery, an electronic compass, a stand column, a pressure sensor, a balance charger, a pantograph, a heat dissipation shell, a heat dissipation fan, a filter screen, a communication module and a two-dimensional code plate. The contact type unmanned aerial vehicle automatic charging device is simple in structure and novel in design, the automatic charging device can be conveniently added in a working path of an unmanned aerial vehicle, autonomous landing charging of the unmanned aerial vehicle is achieved, the working process of related operation can be greatly simplified, manual participation is reduced, the working cost is reduced, and the efficiency is improved; under the effect of the arranged flap mechanism, the protection shell can seal the end part of the shell conveniently; the wind and sand prevention performance of the shell is improved, the stability of electrical components in the shell is guaranteed, the maintenance time of the device is shortened, the stability is improved, and the device is convenient for workers to use.

The invention relates to a concrete-encased double-limb steel pipe concrete dumbbell-shaped column structure. The concrete-encased double-limb steel pipe concrete dumbbell-shaped column structure comprises two column limbs and a reinforced concrete board connected between the column limbs, wherein the column limbs are both composed of steel pipe concrete columns and column concrete-encasing layers, the steel pipe concrete columns both comprise pipe inner concrete and steel pipes, the reinforced concrete board comprises node blocks, steel bars and a filled concrete layer, the node blocks are connected with the steel pipes and are arranged many at intervals in the axial direction of the steel pipes, and the two ends of the steel bars are connected with the corresponding node blocks on the adjacent steel pipes correspondingly. The concrete-encased double-limb steel pipe concrete dumbbell-shaped column structure is simple in structure and has the advantages of fire prevention, corrosion prevention, high bearing capacity and good durability.

The invention discloses lawn planting equipment and a planting method for soil remediation. The lawn planting equipment comprises supporting mechanisms, a connecting mechanism and an isolating mechanism; the four supporting mechanisms form a group and are combined for use; the top ends of the four supporting mechanisms are embedded into the isolating mechanism; every two adjacent supporting mechanisms are fixedly connected through the corresponding connecting mechanism; each supporting mechanism comprises a supporting frame; connecting side edges are symmetrically arranged on the surfaces of the left sides and the right sides of the supporting frames; the inclination of the connecting side edges is 90 degrees; fixing holes are symmetrically formed in the ends, close to the connecting side edges, of the left sides and the right sides of the supporting frames; and reinforcing grooves are evenly formed in the front faces of the supporting frames. When the lawn planting equipment for soil remediation is used, the number of assemblies is small, splicing and large-area laying are convenient, carrying is convenient, input of manual labor force is reduced, cost is reduced, the ground gripping capacity of turf is improved, movement in sandy soil is avoided, stability of the turf can be guaranteed through large-area laying, and meanwhile the survival rate of plants is increased.