59results about How to "Act as a water barrier" patented technology

The invention belongs to the technical field of an artificially built overwater floating island, and particularly relates to an overwater floating island, which comprises a group of floating devices, a group of supporting devices, a steel structure platform, an overwater fencing, an underwater fencing and a freshwater storage box, wherein each floating device consists of a floating tube, a polystyrene foaming body and a pipe sealing head, each support device comprises a support circular arc plate, a support frame and a bracket connecting flat plate, the floating tube is a steel band enhanced polystyrene spiral corrugated pipe with the pipe wall in a spiral convex edge structure, the steel structure platform consists of a group of platform connecting flat plates, a platform framework, a platform panel, a surrounding plate, a group of anchor chain rings, a water flowing groove, a sewage pipe and a pipe sealing cover, and the underwater fencing is made of stainless steel. The steel band enhanced polystyrene spiral corrugated pipe adopted by the overwater floating island is economic, portable, impact-resistant and durable, and cannot be corroded in seawater and acid and alkali soil, and the electrochemical corrosion cannot occur. The polystyrene foaming body is adopted, the specific gravity of the raw material is light, the density is high, and the goal that the integral platform cannot sink forever can be reached.

The invention discloses a solvent-free epoxy resin as a plugging material and a preparation method and application of the solvent-free epoxy resin. The material is prepared from part A and part B at a ratio of 4:1 to 20:1 by weight, wherein the part A contains the following components by weight: 7.3-13.8% of organic silicon modified epoxy compound, 66.2-70.8% of Pluronic polyol polyether-modified epoxy resin, 15.0-25.0% of a reactive diluent, and 0.2-0.5% of a catalyst A, and part B contains the following components by weight: 99.0-99.7% of modified phenolic amine, 0.2-0.5% of a silicane coupling agent and 0.1-0.5% a catalyst B. According to the invention, reaction between benzyl glycidyl ether and hydroxyl silicone oil is utilized, so that the molecular weight of the reaction product is reduced, the viscosity is reduced, and the surface tension of the product is small for plugging effect. In addition, reaction between Pluronic polyol polyether and epoxy resin is adopted to improve the elasticity of a consolidating body and increase the surface activity of the system for water repelling effect. The solvent-free epoxy resin as the plugging material can be applied to engineering parts with visible water.

The invention relates to an underground gushing water aggregate addition system and a process thereof. In the invention, aggregate can be smoothly and continuously injected into a borehole under the high-pressure gushing water condition to block up bigger guide water-contained fractures or overflow structures so as to drag the flow rate of gushing water, promote the materials to be settled and solidified and reduce the material loss, thereby achieving the goal of grouting to plug the water. The system comprises a grouting pipe. The grouting pipe is respectively communicated with a grouting casing pipe through a water injection pipeline I and a water injection pipeline II; the grouting casing pipe is provided with a sluice valve I and a sluice valve II; the joints of the water injection pipeline I and the grouting casing pipe are at the front end of the grouting casing pipe and the front part of the sluice valve I, and the joints of the water injection pipeline II and the grouting casing pipe are arranged between the sluice valve I and the sluice valve II, i.e. the water injection pipeline I and the water injection pipeline II are divided into two independent water injection systems through the sluice valve I.

The invention discloses a round split conductor with internal optical fibers. The round split conductor is made by assembling a plurality of conductor sectors. Insulating crinkled paper for isolating the conductor sectors is arranged among the conductor sectors. At least one wire having a central direct-laid fiber unit is provided between sector corners of every two adjacent conductor sectors. The round split conductor allows the temperature and transmission load of the power cables to be monitored in real time and can serve as a large-section conductor for 'triple-play', 'smart' and extra-high voltage or high voltage power cables; the direct-laid optical fiber units wrapped with the wires is never broken, the wires also effectively protects the fiber units, no extrusion is caused during processing and laying, especially heat and expansion inevitably occurring during running of the cables are avoided, space for the fiber units is guaranteed, the elastic material of the wires provide buffering for the expansion inside thus the fiber units are never damaged, and normal running is guaranteed.

The invention discloses novel titanium dioxide white antirust pigment and a preparing method thereof. The method includes adding deionized water into a titanium dioxide crude product not subjected to surface treatment to obtain a slurry material, adding vinyl alkoxy phosphate, an organosilicone coupling agent and an alcohol amine type dispersant into the slurry material, dispersing at a high speed to fully mix the compounds, drying the material mixture that is fully mixed, performing oxygen-free calcination at 200-400 DEG C for 3-3.5 h, cooling and smashing to obtain a product. The vinyl alkoxy phosphate and the organosilicone coupling agent cover titanium dioxide particles. When a metal surface is coated with the pigment, a phosphate coating and a compact organosilicone coupling structure can be formed, thus effectively improving corrosion resistance of the pigment, reducing the using amount of the pigment and largely reducing the cost. In addition, acrylate groups and the coupling agent exist on surfaces of the particles, thus effectively improving the dispersion stability of the pigment in an organic medium.

The invention discloses a combined split conductor. The combined split conductor comprises a central support strand block, and the conductor structure is composed of a plurality of corrugated conductor strand blocks and the central support strand block in an integrating mode; the corrugated conductor strand blocks surround the central support strand block around the central support strand block; insulating crepe paper for separating the strand blocks is arranged between the corrugated conductor strand blocks; at least one silk thread bundle with an optical fiber unit at the center in a direct towing mode is arranged between the fan-shaped angles of the corrugated conductor strand blocks. The combined split conductor is capable of monitoring the temperature and transmission load of a power cable in real time and serving as a large-section conductor in integration of three networks, intelligent cable, extra-high-tension power cable and high-tension power cable; the silk thread bundle effectively protects the optical fiber unit, when processing and paving, the optical fiber unit is protected from extrusion, and in particular, when running the cable, the cable would generate heat and swell up, the space for holding the optical fiber can be guaranteed, and the cable can run normally.

The invention discloses an array substrate, a stretchable display panel and a display device, and relates to the technical field of electronic display devices. The array substrate includes a base substrate, a planarization layer, a pixel defining layer, a first electrode layer, and a thin film encapsulation layer which are successively stacked; a thin film transistor is disposed between the planarization layer and the base substrate; a plurality of openings are disposed to pass through the thin film encapsulation layer, the first electrode layer, the pixel defining layer, the planarization layer, and the base substrate to define a plurality of islands spaced apart; the edge of the first electrode layer extends to a sidewall covering the planarization layer for shielding the thin film transistor against light; the edge of the first electrode layer is in contact with a conductor; and the conductor passes through a bridge region arranged between the openings and the islands and used for connecting adjacent islands in order to be used as a power wire for connecting the first electrode layers of the adjacent islands.

The invention discloses novel titanium dioxide white antirust pigment and a preparing method thereof. The method includes adding deionized water into a titanium dioxide crude product not subjected to surface treatment to obtain a slurry material, adding vinyl alkoxy phosphate, an organosilicone coupling agent and an alcohol amine type dispersant into the slurry material, dispersing at a high speed to fully mix the compounds, adjusting the pH value of the slurry material to 6-8, adding deionized water and a nanometer material, dispersing at a high speed to fully mix the compounds, drying the material mixture that is fully mixed, performing oxygen-free calcination at 200-400 DEG C for 3-3.5 h, cooling and smashing to obtain a product. The vinyl alkoxy phosphate, the organosilicone coupling agent and the nanometer material cover titanium dioxide particles. When a metal surface is coated with the pigment, a phosphate coating and a compact organosilicone coupling structure can be formed, thus effectively improving corrosion resistance of the pigment. Acrylate groups and the coupling agent exist on surfaces of the particles, thus effectively improving the dispersion stability of the pigment in an organic medium.

The invention discloses a ground dryness and wetness separation device based on a buoyancy principle for a toilet. The device comprises a baffle and a placement groove; the placement groove is formedin the lower end of a floor, and a rectangular through groove is formed in the upper end of the placement groove; the baffle is slidingly connected in the placement groove, the upper end of the bafflepenetrates through the rectangular through groove in the upper end of the placement groove and is slidingly connected to the side wall of the rectangular through groove, and the left side of the lower end of the baffle is fixedly connected with a protrusive block used for reserving water storage spaces at the lower end of the baffle and at the bottom of the placement groove. The device is novel in design, water in the toilet enters a water guiding cavity through water inlet holes and then enters the placement groove through water guiding holes in the water guiding cavity, the water entering the placement groove enters the bottom of the baffle through cylindrical grooves, the baffle moves upward under the action of the buoyancy of the water to extend into the placement groove and is abovethe ground at a certain distance, and a water blocking effect is achieved; the buoyancy principle is adopted, there is no other energy consumption, energy is saved, and meanwhile the aesthetic degreeand brightness of the toilet can be improved.

The invention relates to the technical field of sealants, in particular to a water-blocking sealant and a preparation method thereof. The water-blocking sealant comprises the following raw materials in parts by mass: 50-60 parts of water-absorbent resin, 10-30 parts of polyvinyl alcohol, 20-30 parts of diphenylmethane diisocyanate, 20-30 parts of phthalic anhydride polyester polyol, 20-30 parts of acetone, 8-12 parts of ethylene propylene diene monomer, 5-10 parts of a water swelling agent, 3-9 parts of a cross-linking agent, 1-2 parts of a chain extender, 0.5-2 parts of a surfactant, 1-2 parts of an antioxidant and 0.3-1 part of a vulcanizing agent. Polyurethane is prepared from diphenylmethane diisocyanate and phthalic anhydride polyester polyol. The polyurethane, the water-absorbent resin and the ethylene propylene diene monomer are compounded to prepare the water-blocking sealant, the polyurethane adheres, the ethylene propylene diene monomer is elastic rubber and elastically extrudes, seals and blocks water, the water-absorbent resin absorbs water and expands to block water, namely, good adhesion performance is achieved in different substrate surfaces or gaps, the disclosed sealant has wide substrate adhesion applicability and water-absorbing expansion water-blocking performance, and has a good water-blocking effect when being used in the substrate gaps.

The invention relates to a water stop structure for water conservancy project . The water stop structure comprises a water baffle; a cavity communicating with the water baffle is formed in a vertical dam body; a plurality of water stop plates are embedded in the water baffle and slidably connected with the water baffle; first sliding grooves are formed in the water baffle in the height direction of the water baffle; first sliding blocks and second sliding blocks are embedded in the first sliding grooves and slidably connected with the first sliding grooves; the first sliding grooves are vertically connected with second sliding grooves; third sliding blocks are embedded in and rotationally connected with the second sliding grooves; first connecting rods are rotationally connected to the first sliding blocks; second connecting rods are rotationally connected to the second sliding blocks; the first connecting rods and the second connecting rods are rotationally connected to the third sliding blocks; the upper portions of the first sliding blocks are connected with the lower end faces of the water stop plates in the water baffle; the vertical dam body is provided with water passing pipes below the water baffle; water collecting cylinders are connected to the lower portions of the second sliding blocks; and the water collecting cylinders communicate with the ends, penetrating into the vertical dam body, of the water passing pipes through hoses. The vertical water stop structure has the effect of reducing the risk that flood overflows a vertical concrete structure.

The invention relates to an electric atomizer. The electric atomizer comprises a base, a base upper cover, a medicine cartridge and a spraying gun, and is characterized in that a storage battery is arranged on the base, a step arranged in the front side of base is in contact with the front side of the storage battery, a battery box cover is arranged on the storage battery positioned on the base, a battery spring leaf is arranged on the battery box cover, an ejecting spring is arranged on the inner wall of the rear side of the battery box cover, the battery spring leaf and the ejecting spring are in contact with the storage battery, a card slot is formed in a card frame arranged on the base, a switch card seat is arranged in the card frame, a card hook arranged on the outer wall of the switch card seat is matched with the card slot, an opening is formed in one side of the switch card seat, the opening is covered with a protective cover, a threading column is arranged on the outer wall of the protective cover, a threading hole is formed in the threading column, the power cord of an integrated circuit which passes through the threading hole of the protective cover and is connected with the storage battery is arranged in the switch card seat, an L-shaped jack socket, a flow guide groove and a confluence hole are formed in the upper cover of the base arranged on the base, an L-shaped inserting plate is arranged at the bottom of the medicine cartridge, the L-shaped jack socket is fixed through a fastening piece after being matched with the L-shaped inserting plate in an inserting manner, the flow guide groove is communicated with the confluence hole, and the confluence hole goes out through the bottom of the atomizer.

The invention relates to a waterproof structure of a box culvert deformation joint, and belongs to the field of deformation joints, the waterproof structure comprises a plurality of box culverts, an inner sealing ring and an outer sealing ring, the end wall of one box culvert is provided with a positioning ring block, and the end wall of the other box culvert is provided with a positioning ring groove allowing the positioning ring block to be inserted therein; an anti-seepage space is defined between the side wall of the positioning ring block and the groove wall of the positioning ring groove, the inner sealing ring and the outer sealing ring are both arranged in the anti-seepage space, a grouting space is defined by the inner sealing ring, the outer sealing ring, the positioning ring block and the groove wall of the positioning ring groove, and a plurality of grouting holes communicating with the grouting space are formed in the inner side wall of the box culvert. A grouting waterproof layer is arranged in the grouting space, the inner side walls of every two adjacent box culverts are connected through a connecting assembly, and the side walls of the box culverts are provided with sealing assemblies used for blocking the openings of the anti-seepage spaces. The method has the effect of reducing the probability of leakage between the two box culverts.

The invention relates to a soft soil foundation embankment structure. The structure is arranged at a lower part of a river embankment, and comprises a pile foundation arranged in a soil layer of an embankment foundation, one or more rows of piles are mounted in the pile foundation, an upper end of the pile foundation is provided with a foundation platform, the foundation platform is buried in thesoil layer, the pile foundation and the foundation platform both are arranged along the embankment. The soft soil foundation embankment structure has the advantages that the foundation platform and the pile foundation are buried in the embankment soil layer to be used as stressed components, a load above the foundation platform can only be transferred to a deep soil layer through the foundation platform and the pile foundation, and the deep soil layer is taken as a supporting layer to support the pile foundation and the load supported by the upper part of the pile foundation. Thus, the foundation platform unloads the load on the upper part thereof, and an instability phenomenon caused by damage to a soil balance condition when the embankment foundation supports excessive load is avoided.

The invention discloses a multilayer segmented conductor type water-blocking power cable with a built-in cable. The center of the cable is equipped with a segmented conductor layer. The segmented conductor layer is formed by assembling a plurality of segmented fan-shaped conductor strand blocks and a fan-shaped strand block water-blocking layer arranged out of each segmented fan-shaped conductor strand block. A water-blocking rope is filled in a center gap after the plurality of fan-shaped strand block water-blocking layers are assembled. A round conductor is arranged in each fan-shaped conductor strand block. A round water-blocking layer is arranged out of each round conductor. Water-blocking blocks are filled in the gaps among the fan-shaped strand block water-blocking layers, a water-blocking tape and silk thread bundles. A polyethylene insulating layer, a vertical structure water-blocking layer, a metal armored layer and an alkali-free glass optical fiber tape are extruded out of the segmented conductor layer in sequence. According to the cable, the conductor water-blocking structure and the external water-blocking structure are combined mutually, the conductor is not oxidized and corroded due to water immersion, the electric performance of the cable is prevented from being influenced and an abnormal cable breakage event is prevented from occurring.

The invention discloses a high-pressure spray humidification device for a circulation unit, which includes a water supply valve, a filter, a humidifier, a water retaining plate, a pressure relief valve, a water circulation filter device, a circulation water pipeline and the unit. One side of the water supply device is provided with a water inlet pipeline. The water inlet pipe is installed at the inner end of the unit, and a water supply valve is installed on the inner end of the unit. A pressure relief valve is installed on the upper body, a filter screen is installed in the water circulation filtering device, and a circulating water pipe is provided at the other end of the water circulating filtering device, and the circulating water pipe is connected with the water inlet pipe, and a flow control valve is arranged on the circulating water pipe. The structure design of the present invention is simple and reasonable, and the water circulation filter device performs impurity treatment on the humidified water to ensure the cleanness of the water, reduce the consumption of water, realize the continuous utilization of resources, and effectively control the flow of water in each pipeline.

The invention discloses a display panel and a manufacturing method thereof. The display panel comprises a substrate; a planarization layer arranged on the substrate; a pixel definition layer arrangedon the planarization layer; a plurality of pixel opening areas, wherein each pixel opening area is arranged on the planarization layer and the pixel definition layer; and a first water blocking film layer arranged in the plurality of pixel opening areas. The planarization layer and the pixel definition layer are respectively provided with pixel opening areas, and the organic planarization layer and the pixel definition layer can be disconnected at intervals through the first water-blocking film layer deposited in the pixel opening areas, so as to form a new water-blocking area, thereby improving the water-blocking effect of a packaging structure. When a laminating adhesive layer is laminated on the substrate in a vacuum manner, the laminating adhesive layer arranged above a test area can also permeate into the pixel opening areas, so that a water blocking effect is achieved, and the water blocking effect of the packaging structure is further enhanced.

The invention discloses an intelligent waterproof device for an underground garage, and belongs to the technical field of garage waterproof devices. The device comprises vertical slideways on two sides, a water blocking plate arranged between the vertical slideways and sliding along the vertical slideways, a lifting mechanism for lifting the water blocking plate to a high position in a non-workingstate, and a detection control system for sensing a water level signal, and the water blocking plate is connected in the vertical slideways through a crank slider mechanism; the lifting mechanism mainly comprises a lifting machine, and a slider-crank mechanism comprises a connecting rod, a slider set matched with a vertical slide way, a connecting shaft and two clamps used for clamping the waterblocking plate. One end of the connecting rod is hinged to the sliding block set, the other end of the connecting rod is hinged to the clamper, long notches are formed in the sliding block set and theclamper, the connecting shaft is slidably arranged in the long notches, and an electric push rod is installed on the side wall of the garage on one side of the vertical sliding way. By adopting the slider-crank mechanism, the water blocking plate can be turned over naturally, the structure is simple, and the installation is convenient; meanwhile, the water blocking plate can naturally fall down under the action of gravity, and energy and cost are saved.

The invention relates to the technical field of composite cables, in particular to a fireproof composite cable, which comprises an outer protection part for protecting the cable, an inner protection part is sleeved in the outer protection part, the inner protection part comprises an inner sheath, a reinforcing part is sleeved in the inner sheath, and a plurality of supporting parts are arranged between the reinforcing part and the inner sheath. The outer wall of the reinforcing part is provided with a plurality of concave parts used in cooperation with the supporting parts, a plurality of cable cores are arranged in the reinforcing part in a sleeved mode, and a reinforcing core is arranged in the reinforcing part; the reinforcing part comprises a multilateral sheath, and a center sleeve is sleeved at the center line position in the multilateral sheath. The purpose of improving the physical strength of the composite cable is achieved, the compression resistance, tensile resistance, deformation and distortion resistance and stress resistance of the composite cable can be improved, the phenomenon that the cable is damaged due to laying can be avoided, meanwhile, the protection effect on the cable core is improved, and the service life of the cable is prolonged.

The invention discloses a multifunctional A-pillar structure for a vehicle, and a using method thereof. The multifunctional A-pillar structure comprises: a vehicle body, wherein vehicle A-pillar structures are arranged on the two sides of the front end of the vehicle body correspondingly, each vehicle A-pillar structure comprises a first base plate and a second base plate, and each second base plate is embedded into the corresponding first base plate; the first base plates, wherein the upper end of each first base plate is provided with a second transparent hard plate, the second transparent hard plate is fixedly connected with the first base plate, and the inner sides of the first base plates are provided with a plurality of magnetic strips; and the second base plates, wherein a first transparent hard plate is arranged at the upper end of each second base plate, the first transparent hard plates are fixedly connected with the second base plates, and a first electromagnet is arranged on one side of the inner side of each second base plate. According to the vehicle A-pillar structure, flexible adjustment of the vehicle A-pillar structure is achieved, the view field range is expandedthrough the first transparent hard plates and the second transparent hard plates, the view field blind area is reduced, and the problems that the A-pillar structure is low in flexibility and large inview field shielding area, and consequently comfort is low during driving are solved.

The invention discloses a cooking utensil controlled by a sliding rod. The cooking utensil comprises a shell, a sliding strip assembly arranged in the shell, and a sliding rod exposed out of the shell; the cooking utensil further comprises a connecting base installed on the shell. One of the shell and the connecting base is provided with a sliding groove, the other one of the shell and the connecting base is provided with a sliding block matched with the sliding groove in a sliding mode, the connecting base is connected with the sliding strip assembly in a sliding mode, and the sliding rod isfixed to the connecting base so as to be connected with the sliding strip assembly in a sliding mode through the connecting base. By arranging the connecting base, the connecting base is used for guiding sliding, bearing force and preventing water, the sliding strip assembly can be effectively prevented from being damaged due to stress or water inflow, and the service life is prolonged.

The invention discloses a water-blocking combined segmented conductor with a built-in central optical fiber. The water-blocking combined segmented conductor comprises a central support strand block. The conductor structure is formed by assembling a plurality of corrugated conductor strand blocks and the central support strand block. Corrugated water-blocking layers are arranged out of the plurality of corrugated conductor strand blocks. The corrugated water-blocking layers surround the central support strand block by taking the central support strand block as a center. A water-blocking tape is arranged out of the plurality of corrugated water-blocking layers. The central support strand block is formed by twisting a plurality of silk thread bundles. At least one center of the silk thread bundles is directly towed with optical fiber units. According to the water-blocking combined segmented conductor, the corrugated water-blocking layers are arranged out of the corrugated conductor strand blocks, the water-blocking tape is arranged out of the corrugated water-blocking layers, so the integrated conductor is protected by the water-blocking layer, the conductor has a high water-blocking function, the conductor is not oxidized and corroded due to water immersion, the electric performance of the cable is prevented from being influenced and an abnormal cable breakage event is prevented from occurring.

A water tank structure comprises a water tank body and a telescopic driving assembly. The telescopic driving assembly is in transmission connection with the water tank body and is used for driving the water tank body to do forward push-out and backward return movement; the water tank body is provided with a water storage tank, and the water storage tank sinks downwards relative to the top end face of the water tank body; a sensor assembly is arranged in the water storage tank, and the sensor assembly is used for detecting the water level in the water storage tank and sending a water level signal to the control chip based on the detected current water level; the telescopic driving assembly comprises an instruction receiving element, and the instruction receiving element is used for receiving an operation instruction of the control chip; and the telescopic driving assembly drives the water tank body to do forward push-out motion according to the operation instruction. The sensor assembly is arranged in the water tank body, the water level of the water storage tank in the water tank body is detected in real time, corresponding water level signal reminding is made according to different water levels, the water level monitoring timeliness of the water tank of the steaming oven is achieved, and the problem that water level detection of the water tank is delayed in the traditional technology is solved.

The invention relates to the technical field of mining engineering, in particular to a mining room goaf filling method. According to the mining room goaf filling method, a goaf which is 2-4 m above the top of a filling body is filled with mortar at the lime-sand ratio of 1:6, filling water is effectively prevented from being flush with the filling body and infiltrating into the filling body below,and the mortar plays a role of a water-resisting layer; and in addition, the final 2 m of the goaf is filled with tunneling gangue, and seams are filled with the mortar at the lime-sand ratio of 1:6.As the tunneling gangue is moderate in grain size and good in grading, consumption of cementing materials and water is greatly reduced, the water filtration effect is improved, the problem of volumedeformation of concrete is solved, and the strength, durability and anti-permeability of the concrete are improved; through a strengthening device and structure arrangement thereof on the top of the filling body, mortar filler is squeezed, and the drainage effect of the filling body is improved; and meanwhile, the mortar can quickly achieve the full seam filling effect, so that the strength of theconcrete is further improved, the bearing strength of the filling body is improved, and safety mining is realized.

The invention discloses a water-blocking type split combined conductor provided with built-in optical fibers. The conductor is formed by assembling a plurality of split fan-shaped conductor strand blocks, and each fan-shaped conductor strand block is externally provided with a fan-shaped strand block waterproof layer; each fan-shaped conductor strand block is internally provided with a circular conductor, and each circular conductor is externally provided with a circular waterproof layer; a center gap, which is formed after the plurality of split fan-shaped conductor strand blocks are assembled, is internally filled with water-proof gauze, and a water-proof belt is arranged at the outer arc sides of the assembled split fan-shaped conductor strand blocks; five silk thread bundles, which are respectively provide with an optical fiber unit in the center in a dragging way, are arranged among fan-shaped angles formed by the fan-shaped strand block waterproof layers; gaps among the fan-shaped strand block waterproof layers, the water-proof belt and the silk thread bundles are respectively and internally filled with water-proof gauze. The whole conductor is protected by the waterproof layers, so that the conductor has a very strong water blocking function, and the phenomena that the electrical property of a cable is influenced or even the cable is abnormally broken since the conductor is oxidized or corroded due to water immersion can be avoided.

The invention relates to a dynamic seal waterproof external rotary fan which can effectively prevent the water from moving into a stator and a waterproof method. The dynamic seal waterproof external rotary fan comprises an external rotary fan, the end of an external rotor of the external rotary fan is a boss, which is dynamical seal and close fit with a groove of the end of a middle cover in the form of convex-concave insertion. The dynamic seal waterproof external rotary fan has the advantages that: firstly, the design of the convex-concave insertion structure between the external rotor and the middle cover and the alternate concave and convex structural surface of the boss, not only in a dynamic state, can ensure that the forward pressure of the external rotor and the middle cover is greater than the atmospheric pressure, which ensures that the rainwater will not flow into the stator from the external rotor, but also in a static state, can ensure that the alternate concave and convex sealed groove effectively prevents the passing of the rainwater, the rainwater can not flow into the stator from the external rotor, so as to achieve the effect of preventing water; secondly, the setting of grease in the groove of the alternate concave and convex structure of the boss surface between the external rotor and the middle cover not only plays an effect on preventing the water, but also has cooling and lubricating effects.

The invention discloses steel mesh cleaning equipment for electronic production and processing. The steel mesh cleaning equipment comprises a box body, a rotating mechanism, a cleaning mechanism, a grid plate, a fixing plate, a first spring, a first sliding plate, a second spring, a second sliding plate, a rotating wheel, balance wheels, a connecting rod, a fixing seat, a rotating shaft, a drainage mechanism, a drainage groove, a drainage pipe and a water injection pipe. The steel mesh cleaning equipment has the beneficial effects that a top cover is opened, a steel mesh is placed in the gridplate, water is injected into the box body through the water injection pipe, then a rocker is rotated to drive the connecting rod to move, so that the five balance wheels are driven to rotate, under the action of the balance wheels, the rotating wheel is rotated, the first sliding plate slides in the box body through the balance wheels and the second spring, so that the effect of moving the grid plate up and down is achieved, and the steel mesh is convenient to clean; and under the action of the first spring, the grid plate can be connected with the fixing plate to play a role in fixing the grid plate, after cleaning is finished, sewage is discharged out of the box body through the drainage pipe and the drainage groove, so that the next use is facilitated.

The invention discloses a bathing device for a bedridden patient, and belongs to the technical field of medical instruments. The bathing device comprises a bathing frame, a movable bed frame, a sprayer and a power mechanism; the bathing frame is provided with a bathing area into which the movable bed frame extends; the sprayer is arranged on the power mechanism; the power mechanism is used for driving the sprayer to move into the bathing area; and the sprayer is unfolded or reset along with movement of the power mechanism. The movable bed frame is arranged, the bathing frame is arranged, the bathing area is arranged in the middle of the bathing frame, the sprayer is arranged on the bathing frame, and when the bedridden patient is bathed, only a bed board of the movable bed needs to stretch into the bathing area, the power mechanism drives the sprayer to move, so that the bedridden patient is flushed, and the patient is not difficult to bath any more; and the device is very convenient to use, the labor intensity of medical staff is greatly reduced, meanwhile, the body health of a patient is guaranteed, the sprayer can be stored when not used, the situation that the sprayer drips water to pollute the ground is avoided, and meanwhile the space occupied by the whole device is reduced.

The invention discloses an automobile water pump which comprises a pump body, an impeller, a water pump shaft, a bevel wheel and a bearing. The water pump shaft is inserted into the pump body, one endof the water pump shaft extends out of the pump body, the water pump shaft is provided with a water-sealing part dividing the inside of the pump body into an impeller cavity and a driving cavity, theimpeller is composed of an impeller lining, an impeller top plate, an impeller base plate, a connecting disc and a plurality of blades, the impeller lining sleeves, the bottom, located in the impeller cavity, of the water pump shaft, the connecting disc is an open structure internally provided with a water seepage cavity, the inner end of the connecting disc is welded and fixed to the impeller lining, the impeller top plate and the impeller base plate are respectively welded and fixed to the upper end and the lower end of the outer end of the connecting disc, and the multiple blades are uniformly distributed between the impeller top plate and the impeller base plate. The automobile water pump is reasonable in structure, decreases the gap between the impeller and the inner wall of the pumpbody, meanwhile forms multiple water throwing channels in the impeller and is conductive to the improvement of water pumping efficiency.