151results about How to "With moisture-proof function" patented technology

The invention relates to a method of constructing a composite film with good mechanical performance, super-hydrophilicity and anti-reflection and damp-proof functions on a glass substrate. The method includes preparing a sol solution containing silica hollow sphere nanometer particles and a sol solution containing silica / titania double-layer structured hollow sphere nanometer particles, dipping the glass substrate into the sol solution containing the silica / titania double-layer structured hollow sphere nanometer particles, removing organic matters by adopting a pulling process and through calcinating, and turning titania into anatase crystals, thus preparing the composite film on the glass substrate. The method is simple and low in manufacturing cost. The highest light transmittance of the glass substrate provided with the composite film is 99.3% while the highest light transmittance of the glass substrate is 92.1%. The contact angle on the glass substrate provided with the composite film is 0-1 degree. The glass substrate provided with the composite film does not absorb moisture in a high-humidity environment (with the humidity range being 20-95%), can maintain good anti-reflection effects and is particularly suitable for outdoor application.

The invention discloses a flow measuring device for a partially filled pipe drainage pipeline. The measuring device is a separated type structure, the device comprises a streamline probe and a flowmeter host, and the streamline probe is connected with the flowmwter host through a waterproof cable; the streamline probe is a totally-enclosed waterproof structure, wherein the front end of the streamline probe is provided with a first underwater acoustic transducer and a second underwater acoustic transducer in parallel, the top end is provided with a third underwater acoustic transducer, the bottom of the probe is provided with a pressure transmitter, and the back end is provided with a temperature sensor; the flowmeter host comprises an ultrasonic Doppler flow rate measuring module, ultrasonic liquid level measuring module, a pressure transmitter measuring module, a temperature measuring module, an FPGA operational module, an MCU main control module, a battery and voltage-stabilized source module, a GPRS communication module and a debugging interface circuit. According to the device, through the separated type structure of integrating the streamline probe with five sensors and the host, the problems are simplified that the flowmeter installation and maintenance are difficult.

The invention relates to a novel loratadine oral quickly soluble film and a preparation method thereof. The oral quickly soluble film comprises the following components: loratadine, a surfactant, a film-forming material, a flavoring agent, a corrigent and a small amount of ethanol. The invention further provides a preparation method of the novel loratadine oral quickly soluble film. The oral quickly soluble film is small in size and convenient to carry; the dosage is convenient to control, a preparation process is simple and controllable, special production equipment is not required, the novel loratadine oral quickly soluble film is suitable for industrial massproduction, can be quickly dissolved in the oral cavity of a patient who does not need to drink water or chew, and tastes good; compliance of medication for children is greatly improved; the dissolution condition of the novel loratadine oral quickly soluble film in a citric acid-disodium hydrogen phosphate buffer solution with pH of 4.0 is remarkably better than the dissolution condition of commercially available tablets; and the novel loratadine oral quickly soluble film has significance on gerontal patients and other patients with achlorhydria.

The invention discloses a moisture-proof light-weight heat-insulation partition plate. The partition plate is made by using the following raw materials, by weight, 21-25 parts of cement, 13-15 of quartz sand, 11-15 parts of waste sand, 17-19 parts of fly ash, 9-13 parts of sodium gluconate, 1.2-2.5 of calcium nitrate, 16-19 parts of meerschaum, 8-12 parts of bamboo charcoal, 1-3 parts of benzotriazole, 1.3-2.6 parts of sodium petroleum sulfonate, 12-15 parts of broken glass powder, 15-19 parts of ceramic factory waste, 17-21 parts of rice husk, 12-15 parts of paraffin, 5-8 parts of polyethylene wax, 3-7 parts of an aid, and a proper amount of water. The ceramic factory waste, rice husk, meerschaum and bamboo charcoal are added in a production process of the invention, so the partition plate has obvious heat insulation and cold insulation effects, also has a moisture-proof function and can adsorb harmful gases comprising formaldehyde and the like in air; and additionally, the heat-insulation partition plate has a good heat insulation performance, so the heat-insulation partition plate has the advantages of much energy saving, good economic benefit, obvious social benefit and wide application prospect.

The invention relates to a PVC (polyvinyl chloride) floor with noise reduction and elastic functions. The PVC floor comprises a base material layer, wherein an insulated waterproof MPPO (modified polyphenylene oxide) layer is embedded inside the underside of the base material layer. three moisture-proof noise-reduction holes are formed inside the base material layer, a middle layer is arranged above the base material layer, an elastic fiber layer is arranged above the middle layer, a fiber stabilized and reinforced layer is arranged above the elastic fiber layer, a PVC layer is arranged above the fiber stabilized and reinforced layer, a UV (ultraviolet) paint layer is arranged above the PVC layer, the elastic fiber layer is a warp and weft woven fiber layer formed by a soybean fiber layer or a linen fiber layer or the soybean fiber layer and the linen fiber layer, and one or two or three of vermiculite, foam glass and expanded perlite is / are arranged in the three moisture-proof noise-reduction holes. The PVC floor has moisture-proof, insulation, noise-reduction and worm damage prevention functions, also has elasticity, is suitable for home use, has comfortable foot feeling, has a simple structure, can be installed conveniently and has no gaps.

The invention discloses a computer network equipment box with a good heat dissipation effect. The device comprises a base box, a water tank and a water pump are fixedly connected to an inner cavity ofthe base box, the water inlet end of the water pump communicates with the bottom of the right side of the water tank, a box body is fixedly connected to the top of the base box, a box door is movablyconnected to the front side of the box body through a hinge, and dustproof nets are fixedly connected to the two sides of the box body in a penetrating mode. Through cooperative use of the base box,the box door, the box body, a coiled pipe, a water inlet valve, a water outlet valve, a first mounting plate, the dustproof nets, an air blower, a support, a protective net, a first transverse plate,a chute, a bolt, a through hole, an illuminating lamp, a shell, a second mounting plate, a drying box, a water pump, a second transverse plate, a water tank, a drawer, a drying agent and a vent hole,the computer network equipment box has the advantages of air-cooling and water-cooling dual heat dissipation, the better heat dissipation effect, the moisture-proof function and more stable equipmentoperation.

The invention discloses a rubberized asphalt non-cured water-proof coating and a preparation process thereof. The coating consists of the following components in percentage by weight: 20-25 percent of rubber, 15-20 percent of carbon black, 1-2 percent of zinc oxide, 30-50 percent of asphalt, 1-2 percent of accelerator and 5-8 percent of adhesive. The water-proof coating not only improves the waterproofness and the weathering resistance of a building, but also further improves acid resistance, has the characteristic of alkali resistance. The problems of waterproofing work such as thermal expansion and contraction, building slit displacement, corrosion resistance, fatigue resistance and the like are solved, the solid content is up to over 95 percent, and the coating is free from volatile matters, has permanent curing resistance, makes the knife edge of a knife inserted into the coating and pulled out recover quickly without draining any water, has high self-healing, corrosion resistance, fatigue resistance and high bonding power with a plurality of heterogeneous materials, can be applied to thermal spraying construction, knife-coat construction and grouting leakage preventing construction, and can be widely applied to waterproofing of subways, bridges, houses, water pools and the like.

The invention provides a parallel static-electric air filtering plate which is composed of more than two parallel dust collection plates, herein each dust collection plate is composed of a metal plate and an insulating electret material coating the metal plate. The polarity of power supplies connected to two adjacent dust collection plates are arranged oppositely. The dust collection plate is in a rectangular sheet-like shape, wherein an air filtering channel is formed among the dust collection plates. More than two protruded support points being equal in height are formed between two adjacent dust collection plates, wherein the distance between the two adjacent dust collection plates is less than or equal to the height of the protruded support points. The parallel static-electric air filtering plate is composed of a plurality of dust collection plates, wherein a self-supporting body is formed among the dust collection plates and even integrated moulding is available. The air filtering plate is convenient to install, detach and clean. By means of the electret material for insulating or coating the metal plates, the air filtering plate is free of high-voltage discharging and generation of large quantity of ozone under continuous high-voltage discharging. The air filtering plate also has a dampness-proof function and is improved in safety.

The invention relates to the technical field of furniture articles, and discloses a moisture-proof wardrobe with adjustable interior space, including a cabinet body, the top of the cabinet body is fixedly connected with an adjusting box, a fixing block is fixedly connected with the bottom of the inner wall of the regulating box, the inside of the fixing block is fixedly connected with a rotating shaft through a bearing, the outer wall of the rotating shaft is fixedly connected with a take-up coil, the outer wall of the take-up coil is movably connected with a steel rope, the inside of the adjustment box is fixedly connected with a fixed rod, the top of the fixed rod is fixedly connected with a roller through a support rod, and the steel rope is movably connected with the outer wall of theroller. The moisture-proof wardrobe with adjustable interior space is provided with a fixing seat, the hanging pole and the horizontal plate can adjust the space inside the wardrobe according to the articles stored by people to the suitable storage space, so as to avoid the waste of space caused by fixing the space inside the wardrobe, enhance the practicability of the wardrobe, and make people use the wardrobe more conveniently.

The invention discloses a melamine plate for drilling a PCB (Printed Circuit Board), and a preparation method thereof. The melamine plate for drilling the PCB comprises a melamine resin plate and melamine plate surface paper, wherein the melamine plate surface paper is attached on the melamine resin plate, the melamine plate surface paper is formed by dipping base paper into emulsifying wax-containing urea-formaldehyde resin; and the additive amount of the emulsifying wax is 3-12% of the urea-formaldehyde resin. The emulsifying wax is demulsified under the influence of external environment condition, and a wax film is formed on the base paper, so that the melamine plate for drilling the PCB has a damp-resistant function. According to the melamine plate for drilling the PCB, the problem that the surface of the melamine plate for drilling the PCB is easily moistened so as to be warped in the storage and use processes.

The invention discloses a wood industry vegetable adhesive. The wood industry vegetable adhesive comprises a plant starch adhesive, a bonding strength modifier, an oxidizing agent, a pasting agent, across-linking agent, a polymerization inhibitor, a catalyst and water. The plant starch adhesive is selected from cassava starch, sweet potato starch and / or corn starch, preferably the cassava starch;the cross-linking agent comprises a first cross-linking agent borax, a second cross-linking agent sodium trimetaphosphate and a third cross-linking agent epoxy chloropropane. According to the wood industry vegetable adhesive prepared by multiple cross-linking reaction steps in the invention, molecules of the wood industry vegetable adhesive form stable chemical bonds of a multi-dimensional network structure, and the water resistance and bonding strength of the wood industry vegetable adhesive are greatly improved.

The invention discloses a municipal file cabinet facilitating containing space adjustment and belongs to the field of municipal devices. The municipal file cabinet comprises a cabinet body. An air inlet device is arranged at the top of the cabinet body, and a movable supporting device is arranged at the bottom of the cabinet body. An air inlet valve is arranged at the top end of the cabinet body,and an air inlet net opening is formed in the connecting position of the air inlet valve and the cabinet body. A filter tank is arranged at the right end of an air blower through an air inlet pipe, and three layers of activated carbon plates are arranged in the filter tank. The movable device is arranged below a supporting base. A placement frame is horizontally arranged between fixing clamp plates and is clamped on the fixing clamp plates through clamping grooves. The device is provided with the clamping grooves formed in the fixing clamp plates, and the placement frame is clamped in the clamping grooves, so that the municipal file cabinet has the function of facilitating containing space adjustment. The three layers of activated carbon plates are arranged in the filter tank, so that themunicipal file cabinet has the function of preventing moisture and dust in the air from entering the file cabinet and has the advantages of being simple in structure, good in practicability and quickand convenient to use.

The invention relates to a wireless charging remote control and a charger which aim at solving the technical problem in the prior art that a high frequency signal transmission mode is adopted to conduct wireless charging, the power conversion rate is low, and the charging time is long. The wireless charging remote control comprises a key, a microprocessing unit, an infrared transmitting unit and a power storage unit. The key and the infrared transmitting unit are connected with the microprocessing unit, and the power storage unit is connected with the microprocessing unit and the infrared transmitting unit. The wireless charging remote control further comprises a wireless charging receiving unit connected with the power storage unit and used for converting an electromagnetic field into current and charging the power storage unit through the current, and the wireless charging receiving unit comprises at least one group of coils. The wireless charging remote control has the advantages of utilizing the coils to convert the electromagnetic field into current, improving the power conversion rate, reducing the charging time and meanwhile reducing cost.

The invention discloses an integrated ceiling provided with a damp-proof function and used for a toilet. The integrated ceiling provided with the damp-proof function and used for the toilet comprisesa ceiling box body, a beam is fixedly connected into the ceiling box body, the top surface of the beam is fixedly connected with the surface of an output shaft of an exhaust motor through a bearing, an exhaust fan is fixedly connected to the output shaft of the exhaust motor, and the top surface of the exhaust motor is fixedly connected with the top surface of an inner cavity of the ceiling box body through a connecting frame. A damp-proof device is fixedly connected to the top surface of the beam and comprises a gas insulating board, a dust filtrating screen is fixedly connected to the left side surface of the gas insulating board, a ventilating box body is fixedly connected to the right side surface of the gas insulating board, and the side surface of an inner cavity of the ventilating box body is fixedly connected with one end of a gas return pipe. According to the integrated ceiling provided with the damp-proof function and used for the toilet, by arranging a ventilating electric fan, the gas return pipe, a condensation pipe, a spherical drying pipe and a heating fuse, and the effect of prolonging the service life of an exhaust system is achieved.

The invention provides a multistage parallel static-electric air filtering plate which is composed of more than two dust collection plates in parallel, wherein the dust collection plate is composed of more than two metal plates and insulating electret materials coating the metal plates. The dust collection plate is rectangular sheet-like in shape. A metal plate connected to high electrode potential and a metal plate connected to low electrode potential are both disposed on each dust collection plate. There are more than two space static-electric fields formed in the direction being vertical to air channels, so that the air filtering plate can adsorb air particles under the multi-directional force of the multiple static-electric fields. The air filtering plate is better in effect and also is convenient to clean.

The invention relates to the technical field of teaching aids, and discloses a teaching aid storage cabinet having a damp-proofing function. The teaching aid storage cabinet comprises a box body, wherein the bottom of the box body is fixedly connected to the top of a cabinet body; the top of the cabinet body is fixedly connected to the top of a damping supporting body; a limiting plate is fixedlyconnected to the inner wall of one side of the cabinet body; an inserting plate is movably connected to the surface of the limiting plate; a heating body is fixedly connected to one end of the inserting plate; the surface of the inserting plate is fixedly connected to one end of a frame body; a water-proofing layer is fixedly connected to the inner wall of the bottom of the frame body; and a damp-proofing layer is fixedly connected to the top of the water-proofing layer. By virtue of the water-proofing layer and the damp-proofing layer which are cooperated, and since the water-proofing layer and the damp-proofing layer are arranged on the inner wall of the bottom of the frame body, upward spread of damp is relieved, and humidity in the cabinet body is effectively relieved; and temperatureof the interior of the cabinet body can be increased when the heating body is turned on by working personnel, so that influence of moisture to the teaching aids is effectively relieved and a circumstance that the teaching aids, when stored, get mouldy is relieved.

The invention provides a satellite antenna transmission mechanism and a satellite antenna. The satellite antenna transmission mechanism comprises a fixed support assembly, a rack, a pitching rotation mechanism, an antenna assembly and a polarization rotation mechanism, wherein a plurality of moisture-proof assemblies capable of preventing water vapor from being accumulated for a long time are embedded in the vertical inner side surface of the rack in an up-and-down vertical direction and the like; and each moisture-proof assembly comprises an arc plate, a metal plate, a through groove, a movable assembly capable of flexibly moving according to entering of water vapor and a water absorption assembly capable of absorbing the water vapor. According to the satellite antenna transmission mechanism and the satellite antenna, the rack has a moisture-proof function, moisture in the air is prevented from soaking the surface of the rack of a ship which works on the sea for a long time, normal operation of the transmission mechanism is guaranteed, and the service life of the satellite antenna is prolonged.

The invention provides a multilayer electrostatic air filter plate which is composed of more than two parallel dust collecting plates, wherein each dust collecting plate is composed of a metal plate and an insulating electret material combined with the metal plate; the electrodes connected with the adjacent two dust collecting plates have opposite polarities; a plurality of filtered air channels are formed in each dust collecting plate and perpendicular to the dust collecting plate. Air passes through a plurality of electrostatic fields, the adjacent two electrostatic fields have opposite polarities, and the polarization effect on the air is different. The particles repeatedly polarized are more easily adsorbed by the electrostatic fields. Thus, the air is filtered through multilayer electrostatic fields, and the purifying effect of air is better.

The invention provides a bookshelf with a damp-proof function, and relates to the field of bookshelves. The bookshelf with the damp-proof function comprises a protecting seat, wherein the cavity of the protecting seat is fixedly connected with a fixing plate; dustproof mechanisms are separately fixedly connected to two sides of the top of the fixing plate; each dustproof mechanism comprises a first rotation motor; first sliding tracks are fixedly connected to the two sides of the inner wall of the protecting seat separately and are positioned above the fixing plate; a first movable plate is slidably connected between the two first sliding tracks; and the bottom of the first movable plate is fixedly connected with a first threaded sleeve. According to the bookshelf with the damp-proof function, moisture in air can be removed by a heating wire, dryness of gas is maintained, by cooperation of an air outlet fan, an air outlet tube and an air outlet hole, the gas which has been dried is discharged from the air outlet hole, and flows to various places of the protecting seat through a through hole, dryness of the environment of the inner wall of the protecting seat is maintained, dampnessis prevented, and a damp-proof effect is achieved.

The invention discloses a damp-proof and dust-proof communication cabinet capable of ascending and descending. The cabinet comprises a main box body. A cabinet cavity is formed in the main box body. Cabinet sliding cavities are communicated with the lower end wall of the cabinet cavity in a bilateral symmetry mode. The lower end wall of the cabinet cavity is communicated with a fan blade cavity. Acabinet of which one part is positioned in the right translation gear is arranged in the cabinet cavity. Four communication equipment cavities with the same size are arranged in the cabinet. A lifting rack cavity positioned on the lower side of the cabinet cavity is formed in the main box body. A sleeve bevel gear cavity is formed in the left side of the lifting rack cavity. The communication cabinet is arranged underground. The whole communication cabinet has moisture-proof and dust-proof functions, and can effectively avoid the influence of external natural disasters and man-made damage. The cabinet is provided with the automatic lifting and translation mechanism, enables the maintenance and replacement of communication equipment in the cabinet to be quicker and more convenient, and caneffectively discharge the heat generated by the communication equipment in the cabinet during work to the outside through the arrangement of the cooling fan and the cooling holes.

The invention discloses a low temperature quick-setting moistureproof leveling mortar, and belongs to the field of leveling mortar. The low temperature quick-setting moistureproof leveling mortar is composed of a powder material and a liquid material; the powder material is prepared from, by mass, 300 to 500 parts of Portland cement, 3 to 7 parts of a quick-setting early strength agent, 1.5 to 5 parts of a thixotropic lubricating agent, 0.5 to 3 parts of a thickening water-retaining agent, 400 to 600 parts of quartz sand, 0 to 200 parts of calcium powder, and 0 to 1 part of an environment-friendly water reducing agent; the liquid material is prepared from, by mass, 700 to 900 parts of a cationic acrylic emulsion, 3 to 6 parts of an antifoaming agent, 1.5 to 3 parts of a bactericide, 0 to 2 parts of a thickening agent, and 50 to 300 parts of water. The low temperature quick-setting moistureproof leveling mortar possesses low temperature quick setting performance, the lowest construction temperature is 0 DEG C or higher, the low temperature quick-setting moistureproof leveling mortar possesses certain thixotropic lubricity, operation hand feeling is smooth, both time and labour are saved, and moistureproof function is achieved.

The invention discloses a moisture-proof noise-proof sheet. The sheet comprises decorative layers, an adhesive, a moisture-proof layer and a sound-insulating layer; and the decorative layers are separately arranged on two sides of the exterior of the sheet, and two ends of the moisture-proof layer are respectively connected with the decorative layers and the sound-insulating layer through the adhesive to form a whole, wherein the sound-insulating layer is formed by combination of a plurality of layers of plastic films and one sound-insulating filling layer located between each two layers of the plastic films. According to the moisture-proof noise-proof sheet provided by the invention, the adhesive is among the decorative layers, the moisture-proof layer and the sound-insulating layer, so that the decorative layers, the moisture-proof layer and the sound-insulating layer can be closely glued together, and the sheet has the function of preventing ants and worms; at the same time, the moisture-proof layer and the sound-insulating layer are arranged, the moisture-proof layer and the sound-insulating layer are prepared by using various straw and nut shells as main materials, so that thesheet has the advantage of environmental protection besides functions of sound insulation and moisture resistance.

The invention discloses a multifunctional composite fabric including an upper layer, a middle layer and a lower layer. The upper layer includes a nylon wire layer and a pest-expelling layer, wherein the pest-expelling layer is arranged above the nylon wire layer; the middle layer includes a polyurethane nano-film layer and a negative ion fiber layer which is arranged under the polyurethane nano-film layer; the lower layer includes a polyvinylidene fluoride nano-film layer and a real-silk layer, wherein the polyvinylidene fluoride nano-film layer is arranged above the real-silk layer. The multifunctional composite fabric, by means of the pest-expelling layer, can expel pests, has antibacterial and sterilizing effects due to the polyurethane nano-film layer and the negative ion fiber layer, and has dehumidifying and damp-proofing functions due to the effects of the polyvinylidene fluoride nano-film layer and the real-silk layer.

The invention discloses a storage cabinet with a damproof function and for tea selling. The cabinet comprises a cabinet body and storage boxes, a left-side cabinet door and a right-side cabinet door sleeve the left and right sides of the front portion of the cabinet body, and a cabinet door switch is fixedly connected to the left side of the middle of the right-side cabinet door and comprises a first connecting block, springs, a fixing block and a first connecting rod; transverse plates are equidistantly and fixedly connected to the interior of the cabinet body, second connecting roods are fixedly connected to the upper and lower sides of the transverse plates, the storage boxes are equidistantly arranged on the left side of the inner wall of the cabinet body, discharging ports are fixedlyconnected to the lower portions of the storage boxes, and discharging plates are fixedly connected to the interiors of discharging pipes. According to the storage cabinet with the dampproof functionand for tea selling, dust can be prevented, and tea is conveniently displayed and can be classified for displaying; the displaying space can be adjusted, the flexibility is high, the good damproof anddehumidification effects on the cabinet can be achieved, and the tea storage effect is guaranteed.

The invention discloses an artificial quartz sheet for ground pavement, and its preparation method, and belongs to the field of artificial quartz production. The artificial quartz sheet is obtained through vibration and curing molding of main materials comprising an organic silicon resin prepolymer and an inorganic silicon filler. Compared with artificial quartz sheets in the prior art, the artificial quartz sheet for ground pavement has the advantages of no warping in the curing or use process, good ageing resistance, good chemical medicine resistance, high rupture strength, high compressive strength and very good popularization application value.

The invention discloses a transformer insulation case with a dampproof function. The transformer insulation case comprises a base plate. A rubber case is fixedly connected to the top of the base plate; the internal surface of the rubber case is fixedly connected with a first case body; a circular pipe is fixedly connected to the internal surface of the first case body via a supporting rack; and athrough hole is formed in the surface of the circular pipe. The invention relates to the technical field of transformer damproof insulation cases. With the rubber case fixedly connected to the top ofthe base plate, air humidity of the interior of the insulation case can be maintained all the time and the air is at a dry state all the way; damage of the internal transformer due to excessive high temperature can be prevented, so certain temperature is remained for the interior of the insulation case; frequent exchange of the transformers can be avoided; the transformer is only exchanged when the service life is expired; therefore, use cost of the transformer can be reduced; and a problem of internal air humidity maintenance failure of transformer insulation cases in the prior art can be overcome.

The invention provides a sound box with a dustproof function and relates to the field of an electronic device. The sound box with the dustproof function comprises a sound box body and a first filter frame. Fixing bolts are set at four corners of the front of the first filter frame. A first filter net is fixedly connected with an inner chamber of the first filter frame. Through holes are set on thefront of the sound box body. Loudspeaking nets are fixedly connected with the inner chambers of the through holes. Dustproof covers are fixedly connected with the centers of the loudspeaking nets. According to the sound box with the dustproof function, through match of the first filter frame, the first filter net and the dustproof covers, a preliminary dustproof effect is realized, and external dust is preliminarily prevented from entering the sound box; and through match of a second filter frame and a second filter net, net holes of the second filter net are smaller than those of the first filter net, so the dust incapable of being filtered by the first filter net can be filtered again, and a dustproof effect of the sound box is further improved.

The invention provides a power distribution box with a moisture-proof function for a construction site. The power distribution box comprises a power distribution box body and a moisture-proof seat, wherein a motor slot is formed in the center of the top of the moisture-proof seat; a motor is fixedly arranged at the bottom of the motor slot; and an output end of the motor is fixedly connected witha first gear. According to the power distribution box with the moisture-proof function for the construction site, through arranging the motor slot, the motor, the first gear, upright posts, a rotatingshaft, a second gear, a reel, connecting rods, movable blocks, a pulley, a pull rod and a steel wire rope, the motor is started, the first gear is driven to rotate through rotation of the output endof the motor, the first gear drives the second gear to rotate, the second gear drives the rotating shaft to rotate, the rotating shaft drives the reel to rotate, the reel winds the steel wire rope, the steel wire rope pulls the power distribution box body to move upwards and the movable blocks move upwards on the upright posts, so that the power distribution box body is lifted, thereby achieving the moisture-proof effect.

The invention discloses an automobile electronic composite starter. The starter comprises a direct current starting power supply, a motor starting circuit and a protection circuit, wherein the motor starting circuit is connected with a starting motor; the protection circuit is connected with the motor starting circuit and automatically protects the starting motor after being started; both the motor starting circuit and the protection circuit are connected with the direct current starting power supply; the motor starting circuit comprises a triode BG1 of which a base is divided into two paths through a resistor R2; one path is connected with a power positive electrode of the direct current starting power supply through a resistor R1, and the other path is grounded through a starting switch (SW); an emitter of the triode BG1 is connected with the power positive electrode of the direct current starting power supply, and a collector of the triode BG1 is connected with a positive power input end of the starting motor; and a negative power input end of the starting motor is grounded. The starter has the advantages of low cost, small size, high reliability of a starting system and good starting effect, and can effectively solve the problems of adverse factors of large size, high probability of ablation of a contact, non-moisture proof, high electromagnetic interference, poor reliability and the like existing in the conventional composite relay.

The invention discloses a prefabricated wallboard with a dampproof function convenient to assemble, comprising a wall body. Rebars and concrete are fixedly connected inside the wall body; waterproof breathable film is fixedly connected to the lateral side of the wall body; the side of the waterproof breathable film far away from the wall body is fixedly connected with an insulation layer; the sideof the insulation layer far away from the waterproof breathable film is fixedly connected with a vapor isolation film; a horizontal dampproof layer is fixedly connected inside the wall body; a skin layer is fixedly connected to the upper surface of the horizontal dampproof layer; the upper surface of the skin layer is provided with a through channel; a first outflow pipe is fixedly connected to the inner wall of the through channel. The prefabricated wallboard herein has the advantages that the waterproof breathable film, the insulation layer and the vapor isolation film impart dampproof effect to the side of the wall body; the horizontal dampproof layer, the skin layer and the first outflow pipe are provided, the horizontal dampproof layer can prevent rising of vapor, and therefore, theprefabricated wallboard can prevent damp conveniently.