146results about How to "Good waterproof and sealing performance" patented technology

The invention discloses a wire joint connection terminal and a wire joint connection method. The wire joint connection terminal comprises a heat shrink tube and a copper tube, and the heat shrink tube wraps the copper tube which is arranged in the heat shrink tube. The wire joint connection terminal and the wire joint connection method have advantages that in connection and fixation of electric wires, great water tightness is guaranteed, and drawing force in connection of the electric wires is greatly increased.

The invention relates to an ultrasonic toothbrush which comprises a power supply with high-frequency oscillation signal output, a toothbrush body molded in an integral way, an ultrasonic generator sealed inside the head of the toothbrush body, and a lead which is extracted from the toothbrush body and used for connecting the ultrasonic generator and the power supply. The ultrasonic generator of the ultrasonic toothbrush comprises an ultrasonic transducer provided with double piezoelectric ceramic plates, has high power, and generates the phenomenon of ultrasonic cavitation in the oral cavity, thus realizing ultrasonic cleaning function. The ultrasonic toothbrush has simple and reliable structure and low cost, and is very suitable for families.

The invention discloses a linear type power operated tailgate supporting rod of a car trunk. The linear type power operated tailgate supporting rod is used for a car, opening and closing of a tailgate can be achieved only through electric connection of a tailgate opening and closing button and a motor, the tailgate does not need to be manually operated, and opening and closing are convenient, rapid and labor-saving. According to the linear type power operated tailgate supporting rod, people and the tailgate can be protected, hand clamping and head bumping caused by tailgate opening or closing or personal injuries, tailgate paint peeling off and the like caused by other objects are avoided, and the linear type power operated tailgate supporting rod has the beneficial effects of being small in size, good in waterproof sealing performance, convenient to mount, reliable in running, large in bearing capacity, low in noise and the like.

The invention discloses equipment for waxing an upper tongue-and-groove side of a composite floor, which comprises a feeding box, a reclaiming device and a module. The feeding box is arranged above the module; the lower part of the feeding box is connected with the module through a conveying pipeline; the reclaiming device comprises a vacuum pump and a reclaiming box; the vacuum pump is connected with the upper side of the reclaiming box through a front vacuum pipeline; the lower part of the other side of the reclaiming box is connected with the front side of the module through a rear vacuum pipeline; and the rear side of the module is respectively provided with a waxing mouth and a resorption mouth which are used for waxing the upper tongue-and-groove side on the floor in high-speed transportation and resorbing residual toning white wax respectively. The upper part of the module, the lower part of the feeding box and the lower part of the reclaiming box are provided with an electric heating plate respectively; and the surfaces of the conveying pipeline and the rear vacuum pipeline are coiled with a heating belt respectively. The equipment has the advantages that the equipment has a simple structure, convenient manufacture, low cost, even waxing, rapid speed and high efficiency and can reclaim the residual molten toning white wax stuck on the surface of the floor; and the edge of the composite floor which is sealed with wax has better waterproof sealing effect.

The invention provides a large-length and high-temperature resisting loaded detection cable, which is characterized in that a single-mode or a multi-mode tight coated fiber (1) is used as an inner core to cover a tight coated insulation layer (2), a braided copper wire layer (3), an inner sleeve layer (4), a closed water-proofing metal pipe (5), an outer sleeve layer (6) and an inner and an outer loaded twisted steel wire layers (7,8) in sequence from the inside to the outside The number of the cores of the tight coated fiber (1) can be one or more, the copper wire of the braided copper wire layer (3) can be of a single layer or multi-layer tinned copper wire or silver-coated copper wire, the closed water-proofing metal pipe (5) is stainless steel pipe, copper pipe, aluminum pipe or other metal pipes with good conductance, the insulation materials of the tight coated insulation layer (2), the inner sleeve layer (4) and the outer sleeve layer (6) are Fluor plastic or nylon, the steel wires of the inner and the outer loaded twisted steel wire layers (7,8) are double-layer or multi-layer stainless, galvanized or nickel-plated. The invention is widely applicable to geologic exploration of the land and the seabed, strata oil-gas field and the transmission detection of the transmission and detection signals for water conservancy and hydrology. The invention has the advantages of good water-proofing, high-temperature resistance, wear resistance, long service life, high bandwidth of the transmitted detection signals with less loss.

The invention provides an electronic device. The loudspeaker comprises a sounding single body and a shell, wherein the sound production single body is accommodated in the shell; The sound production single body comprises a basin frame. wherein the front cover is assembled with the basin frame to form a containing space, and the magnetic circuit system and the vibration system are contained in thecontaining space. the shell comprises a mounting part for fixing the sound production single body; The front cover comprises a metal cover body and a silica gel sealing ring. A groove is formed in thesurface, right facing the installation portion, of the metal cover body, the silica gel sealing ring is correspondingly installed in the groove and protrudes out of the surface, right facing the installation portion, of the metal cover body, and the front cover right faces the installation portion so that the silica gel sealing ring can be clamped between the front cover and the installation portion. Compared with the prior art, the adopted sealing structure of the sounder and the shell has a better waterproof effect.

The invention relates to the technical field of automobile body structures, in particular to a connecting structure for a front face and a back faces of a light midbus and a body frame of the light midbus. An automobile front face covering part and an automobile back face covering part are fixedly installed at the front end and the back end of a body connecting end face framework through connecting flashes respectively. The connecting structure for the front face and the back face with the body frame has the following advantages that through the connecting flashes connected to the front end and the back end of the body connecting end face framework, the good connecting structure is provided for connection of the automobile front face and the automobile back face, convenience is brought to assembly and connection of the automobile front face and the automobile back face with the body frame, the process of the connecting flashes is simple, and the connecting structure strength is high; the connecting flashes can serve as reinforcing rib structures of the front end face and the back end face of the body connecting end face framework, and therefore the structural strength of the front end face and the back end face of the body connecting end face framework is greatly enhanced; the front face and the back face are connected with the body connecting end face framework by adopting the connecting structure, and therefore the waterproofness and the leakproofness are better; the surface of the front face covering part and the surface of the back face covering part achieve smooth butt-joint with the roof model surface and the side surfaces.

The invention discloses a sealed and waterproof seabed heat-preservation pipe, which comprises a steel pipe, wherein the outer surface of the steel pipe is provided with a corrosion-resisting layer, the outer surface of the corrosion-resisting layer is provided with a heat-preservation layer, the outer surface of the heat-preservation layer is stuck with a covering protection layer, the covering protection layer is formed by a polyurethane elastomer, the polyurethane elastomer covering protection layer is stuck on the heat-preservation layer and the corrosion-resisting layer through a polyurethane base coating agent, the two ends of the polyurethane elastomer covering protection layer are respectively overlaid with the corrosion-resisting layer, the heat-preservation layer is sealed on the steel pipe, and the outer surface of the polyurethane elastomer covering protection layer is provided with a weighting layer. According to the invention, the sticking performance between the polyurethane elastomer covering protection layer and a polyurethane foam heat-preservation layer and the sticking performance between the polyurethane elastomer covering protection and an FBE (Fusion Bonded Epoxy) corrosion-resisting layer are good, the sticking strength is larger than 10 MPa, the sea water can penetrate through the sticking position of the polyurethane elastomer covering protection layer and the polyurethane foam heat-preservation layer and the sticking position of the polyurethane elastomer covering protection and the FBE corrosion-resisting layer, so that the foam heat-preservation layer can be better protected, the waterproof property and the sealability are good, the pressure resisting strength is high, and the heat-preservation effect is good.

The invention relates to the construction material field, in particular to a waterproof asphalt sealing material used outdoor, and provides a waterproof asphalt sealing material which can be used outdoor and has the properties of being waterproof, corrosion resistance and ageing resistance and has the component and weight percentage: 40 to 70 of asphalt, 14 to 20 of naphthenic oil, 4 to 12 of SBS, 5 to 10 of xylene, 5 to 10 of turpentine, 1 to 7 of zinc oxide, 0.1 to 1 of 2, 4-dihydroxybenzophenone, 0.05 to 3 of 4, 4'-thiobis(2, 6-di-tert-butylphenol), 0.1 to 1 of 4-benzoyloxy-2, 2, 6, 6-tetramethylpiperidine, and marginal water. By adopting the technical proposal, the waterproof asphalt sealing material can remain paste shape in normal temperature, can be used by opening the tank at any time, can be covered on the surface of a building or solidified after gapping, and can experience being waterproof, light resistance, corrosion resistance for more than 20 years, is resistant in water, cold, and high temperature, and can achieve good waterproof and sealing effect.

The invention relates to a heat exchanger which is convenient to disassemble and used for refrigeration; a ring of rigid plates are added at the periphery of an air outlet of an evaporator which is provided with the heat exchanger used for refrigeration, and are glued at the periphery of the air outlet of the evaporator by glue; rectangular closed hole rubber sponge is compacted between the plates and the roof skin of the bus so as to achieve waterproof and sealing effects and overcome the defects that the sealing mode of the air outlet of the overhead part of the refrigerating equipment of the bus is the mode of sponge strips and sealing glue and is not easy to disassemble and assemble and consumes fuel; the two ends of the connecting joint of the evaporator and a condenser are added with two stop valves; the two ends of the connecting joints of the condenser and a high-pressure pipe are added with two stop valves; the two ends of the connecting joint of the evaporator and a low-pressure pipe are added with two stop valves, thus better storing the refrigerants in the pipeline. The heat exchanger is also provided with a condensate atomizer, and utilizes the condensate again, thus improving refrigeration effect; therefore, the heat exchanger has convenient disassembly, saves fuel consumption and has wide application value.

The invention discloses a novel insulation and waterproof thermal shrinkage terminal, and relates to a terminal. The novel insulation and waterproof thermal shrinkage terminal comprises a dual-wall pipe and a naked terminal, wherein the naked terminal is arranged in the dual-wall pipe, the dual-wall pipe comprises an outer wall layer and an inner wall layer, the outer wall layer is arranged at the periphery of the inner wall layer, the outer wall layer and the inner wall layer are integratedly formed, the naked terminal is arranged at a middle part of the inner wall layer, the inner diameter range of the dual-wall pipe is 3-8.5 millimeters, the wall thickness range is 0.3-0.9 millimeters, the inner diameter range of the dual-wall pipe after being thermally contracted is 1-2.7 millimeters, the thickness ratio of the outer wall layer and the inner wall layer is 5:1 to 1:1, the naked terminal is a cylindrical hollow terminal made of red copper, and the inner diameter range of the naked terminal is 0.5-6 millimeters. The novel insulation and waterproof thermal shrinkage terminal has the advantages of a simple structure, reasonable design, good waterproof sealing performance, excellent insulation performance, high practicability and high reliability, and is simple and convenient to operate, and promotion and application are easy.

The invention relates to the field of motors, and discloses a plastic package stator and bearing end cap waterproof sealing structure and a plastic package motor. The plastic package stator and bearing end cap waterproof sealing structure comprises a plastic package stator, a bearing end cap and a waterproof sealing ring, wherein the plastic package stator is provided with an annular clamping flange, the bearing end cap is provided with an annular clamping groove matched with the annular clamping flange in a clamped and inserted mode, the annular clamping flange is provided with an axial end face towards the bearing end cap in the axial direction of the plastic package stator, the annular clamping groove is provided with a bottom groove face towards the plastic package stator in the axial direction of the plastic package stator, the waterproof sealing ring is elastically compressed between the axial end face and the bottom groove face, and a positioning groove allowing the waterproof sealing ring to be clamped, inserted and positioned is formed in the axial end face in a concave mode. The plastic package stator and bearing end cap waterproof sealing structure prevents influences of a needle insertion hole, a detection hole and a detachment notch which probably exist in the radial outer surface of the annular clamping flange on the sealing effect of the waterproof sealing ring, and achieves the aims of improving the waterproof sealing effect between the plastic package stator and the bearing end cap.

The invention refers to a new type underwater scape-light. It includes lampshade, which is made up of lower casing body and upper cover plate, and light fitting. Installation mechanism is set outside of the lower casing body. And the upside of the lower casing body is set an integrated full-pervious cover plate made up of polyester carbonates with injection mould. A step type sealing structure is set at the match-place of the full-pervious cover plate and the lower casing body. Because the new type underwater scape-light adopts the integrated full-pervious cover plate to take place of the lightproof mental type or plastic type cover plate, the luminance of the underwater scape-light is very high and not only has caustic effect but also border-scattering effect while the luminous surface is expanded about 30% to 45% and the luminous intensity increases more than 15%. Moreover, the beam is very beautiful. Because the cover plate is made up of flexible integrated type, it would never be broken, and feature of good waterproof and sealing performance avoids electric leakage caused by water leak. And it is also very safe, reliable, low cost and good social benefit.

The invention provides a single-slope drainage system in a seasonal water immersion roadbed. The single-slope drainage system comprises combined impermeable layers, pipe type sewers, upward oblique one-way drainage pipes, step type earthwork standard rooms and a sand-gravel cushion, and especially, each upward oblique one-way drainage pipe comprises an upward oblique drainage pipe body, a trumpet-shaped water outlet and a one-way drainage valve body, wherein holes are formed in the top of the upward oblique drainage pipe body, one end of the upward oblique drainage pipe body is communicated with a sewer drainage pipe, and the other end of the upward oblique drainage pipe body obliquely penetrates through the corresponding side-slope impermeable layer. The impermeable requirement and the drainage requirement of the water immersion roadbed are taken into considered through the combined use of the impermeable layers, the sewers and the drainage pipes; accumulated water on the sides of the roadbed is effectively prevented from flowing backward into a roadbed body by arranging the novel one-way drainage valve bodies; the novel one-way drainage valve bodies have the advantages of being long in sealing distance, good in drainage effect, and capable of playing very good waterproof and drainage effects on the seasonal water immersion roadbed.

The invention discloses an exposed polyurea waterproof repair coating, and preparation and construction method thereof. The exposed polyurea waterproof repair coating is prepared from a component A and a component B. The component A is prepared from the following components: polyaspartic ester resin, polyether polyamine, a dispersant, a plasticizer, a defoamer, a coupling agent, solid filler, a thixotropic agent and a leveling agent; the component B is a curing agent; and the mass ratio of the component A to the component B is (1.5-3):1. The invention further discloses the preparation method of the waterproof repair coating and the construction method of the waterproof repair coating at the same time. The exposed polyurea waterproof repair coating has excellent weather resistance and waterproof sealing performance, no hazardous substances volatilization, no yellowing, no peeling and firm bonding. When the coating is used for construction, a base surface does not need to be beaten and chiseled, the coating can be sprayed or scraped manually, is fast and efficient, waterproof thoroughly and durable, environmentally safe, and can be used in new waterproofing projects and building repair projects.

The invention discloses a leakproof structure for waterproof-layer expansion joints in the cold-region high-speed railway trackless-track subgrade surface. The leakproof structure comprises a joint sealing plate, a back-up material, an elastic material and a sealing rubber layer which are arranged in the expansion joints from bottom to top, the joint sealing plate is arranged at the bottom of the expansion joints, and two sides of the joint sealing plate are connected with a concrete waterproof layer; two sides of the back-up material are connected with the concrete waterproof layer; two sides of the elastic material are coated with a bonding agent and are bonded with the concrete waterproof layer; the bottom surface and two sides of the sealing rubber layer are respectively bonded with the elastic material and the concrete waterproof layer through the bonding agent; the surface of each of the sealing rubber layer and the concrete waterproof layer is coated with an aging-resistant composite coating. The leakproof structure is good in leakproof effect, high in interface bonding, aging resistant, good in durability, rapid in construction and great in promotion value.

The invention provides an application of a polymer sealant in a bridge expansion joint device by serving as a sealant. The surface layer of the expansion joint device is filled with the sealant, so that water prevention and protection of the expansion joint device are achieved, and a rubber sealant or a resin sealant serves as the polymer sealant. The rubber sealant is formed by mixing one or two of a polysulfide sealant, a polyurethane sealant and a silicone sealant in any proportion. The resin sealant is formed by mixing one or two of an epoxy resin sealant, an unsaturated polyester resin sealant and a phenolic resin sealant in any proportion. The bridge expansion joint device is a structural steel expansion device or a modular expansion device or a non-expansion device.

The invention belongs to the field of waterproof damping sealing materials, and particularly relates to an organic silicon foaming sheet for an electronic product and a preparation method thereof. The thickness of the organic silicon foaming sheet is 50-2000 microns, the organic silicon foaming sheet is of a closed-cell structure, and the closed-cell rate is 92% or above; the average cell diameter of the organic silicon foaming sheet is 16-40 [mu] m, and the cell diameter of more than 90% of all cells in the organic silicon foaming sheet is less than 70 [mu] m. The organic silicon foaming sheet can show excellent damping performance, can show a stable loss factor tan delta in a wide temperature range of -40 DEG C to 180 DEG C, and has relatively low compression set in the temperature range; meanwhile, the organic silicon foaming sheet has excellent waterproof sealing performance and flame retardant performance, and is very suitable for waterproof damping sealing of electronic products.

The invention discloses a rotary shaft device of an integrated thin-wall pipe pneumatic clamping mechanism. The rotary shaft device is of a structure which is hollow inside, so as to realize pipe conveying and wet cutting operation. The rotary shaft device comprises a rotary shaft outer shell module, a tension rod module and a chuck module; the tension rod module comprises a tension rod, a pipe and a direct-driven motor, wherein the tension rod is formed by a hollow thin-wall seamless pipe; the inner diameter of the tension rod is more than the outer diameter of the pipe so as to contain the pipe to be processed; the tension rod is fixedly coupled on the rotor of the direct-driven motor; and the chuck module is used for assisting the tension rod module in clamping and loosening the pipe. A sensor is arranged in the tension rod, and the sensor identifies metal materials and non-metallic materials so that pipes are easily counted and automatic feeding is realized.

The invention discloses a sealed high-low voltage power distribution cabinet. The cabinet comprises a cabinet body, a heat dissipation fan is installed at the top of the cabinet body, the heat dissipation fan sucks external air into an installation cavity in the cabinet body and exhausts the external air from an exhaust port in the bottom of the cabinet body, the cabinet body is provided with a cabinet door, a hollow silica gel sealing ring is embedded in one surface, right opposite to the cabinet door, of the cabinet body, and after the cabinet door is closed, the cabinet door is in contact sealing with the slightly convex silica gel sealing ring; the power distribution cabinet not only has a very good dustproof effect, but also does not need to solve the problem of dust collection, the collected dust is used for filling the hollow silica gel sealing ring, the internal solid degree of the sealing ring is increased, thermal deformation of the sealing ring can be effectively prevented in the later period, the sealing effect is improved, and the sealing time is prolonged.

The invention relates to the field of motors, and discloses a plastic package stator and bearing end cap waterproof sealing structure and a plastic package motor. The plastic package stator and bearing end cap waterproof sealing structure comprises a plastic package stator, a wire retaining clip, a waterproof sealing ring and a bearing end cap, wherein the plastic package stator is provided with an annular clamping flange with an installation notch, the wire retaining clip is installed in the installation notch, the bearing end cap is provided with an annular clamping groove matched with the annular clamping flange in a clamped and inserted mode, the annular clamping flange is provided with an axial end face, the wire retaining clip is provided with a wire clip top face flush with the axial end face, the annular clamping groove is provided with a bottom groove face, the waterproof sealing ring is elastically compressed between the axial end face and the bottom groove face, and a positioning groove allowing the waterproof sealing ring to be clamped and positioned is formed in the wire clip top face in a concave mode. The plastic package stator and bearing end cap waterproof sealing structure prevents influences of a needle insertion hole, a detection hole and a detachment notch which probably exist in the radial outer surface of the annular clamping flange on the sealing effect of the waterproof sealing ring, and achieves the aims of improving the waterproof sealing effect between the plastic package stator and the bearing end cap.

The invention relates to the field of motors, and discloses a plastic package stator and bearing end cap waterproof sealing structure and a plastic package motor. The plastic package stator and bearing end cap waterproof sealing structure comprises a plastic package stator, a bearing end cap and a waterproof sealing ring between the plastic package stator and the bearing end cap, wherein the plastic package stator is provided with an annular clamping flange, the bearing end cap is provided with an annular clamping groove matched with the annular clamping flange in a clamped and inserted mode, the annular clamping flange is provided with an axial end face towards the bearing end cap in the axial direction of the plastic package stator, the annular clamping groove is provided with a bottom groove towards the plastic package stator in the axial direction of the plastic package stator, the waterproof sealing ring is elastically compressed between the axial end face and the bottom groove face, and a positioning hole allowing the waterproof sealing ring to be clamped and positioned is formed in the bottom groove face in a concave mode. The plastic package stator and bearing end cap waterproof sealing structure prevents influences of a needle insertion hole, a detection hole and a detachment notch which probably exist in the radial outer surface of the annular clamping flange on the sealing effect of the waterproof sealing ring, and achieves the aims of improving the waterproof sealing effect between the plastic package stator and the bearing end cap.

The invention relates to the field of adhesives, in particular to a high-temperature-resistant flexible single-component epoxy sealing adhesive and a preparation method thereof. The high-temperature-resistant flexible single-component epoxy sealing adhesive is prepared from the following raw materials in parts by weight: 10-40 parts of epoxy resin, 10-30 parts of a mixed softening resin, 5-20 parts of an active diluent, 5-20 parts of a mixed curing agent, 0.01-1 part of a polymerization inhibitor, 0.1-5 parts of fumed silica, 0.01-1 part of an infiltration flow promoter and 5-30 parts of spherical silica powder, the mixed curing agent is a mixture of a modified amine latent heat curing agent and a modified imidazole latent heat curing agent, and the mixed softening resin is prepared from at least two of F100, F300, Capa3050, H2004, HEF750, HEF751, EP-4000L and EP-4000S. The adhesive disclosed by the invention can be widely applied to sealing processes of USB ports and high-temperature-resistant reflow soldering processes, has good bonding performance on PA46, stainless steel, PC and the like, and ensures excellent waterproof sealing performance and plugging resistance of the USB ports of electronic products.

The invention provides an assembly-type cast-in-place concrete structure disassembly-free template pipe gallery. The pipe gallery comprises a cast-in-place concrete bottom plate, two prefabricated disassembly-free template system wallboards and a prefabricated disassembly-free floor board; wall anchoring steel bars are reserved on the two sides of the cast-in-place concrete bottom plate; each prefabricated disassembly-free template system wallboard comprises a metal truss and disassembly-free templates arranged on the two sides of the corresponding metal truss; the prefabricated disassembly-free floor board comprises a bottom face disassembly-free template and a steel bar net arranged on the bottom face disassembly-free template; and the two prefabricated disassembly-free template system wallboards are vertically arranged on the two sides of the cast-in-place concrete bottom plate, the prefabricated disassembly-free floor board is arranged at the tops of the two prefabricated disassembly-free template system wallboards, pouring concrete bearing walls are arranged in gaps between disassembly-free templates of the prefabricated disassembly-free template system wallboards, and a pouring concrete top layer is arranged on the prefabricated disassembly-free floor board. The main structure of the pipe gallery is completed in a factory form outside the construction site, assembling iscarried out in the construction site, the construction speed of the pipe gallery is increased, and the construction difficulty is reduced.

The invention provides a pipeline joint watertightness anticorrosion hot melt adhesive. The formula of the hot melt adhesive comprises the following components: by weight, 25-45% of EVA resin, 15-30% of a tackifier, 1-20% of a flexibilizer, 25-35% of paraffin, 1-7% of a composite auxiliary agent and 0.5-2% of an anti-oxidant, wherein the VA content of EVA resin is 28%; melt index (MI) of EVA resin is 150g / 10min; and the tackifier is thermoplastic phenolic resin. The invention provides a pipeline joint watertightness anticorrosion hot melt adhesive which is an efficient water-stop hot melt adhesive prepared by using EVA resin as the matrix resin and using thermoplastic phenolic resin as the tackifier. The hot melt adhesive has good waterproof airtightness, high bonding strength and excellent resistance to chemical corrosion, and can meet anticorrosion requirement of a pipeline joint which is immersed in seawater for a long time.

The invention relates to the field of motors, and discloses a plastic package stator and bearing end cap waterproof sealing structure and a plastic package motor. The plastic package stator and bearing end cap waterproof sealing structure comprises a plastic package stator and a bearing end cap at one end of the plastic package stator, wherein the plastic package stator is provided with an annular clamping flange, the bearing end cap is provided with an annular clamping groove matched with the annular clamping flange in a clamped and inserted mode, the annular clamping flange is provided with an axial end face towards the bearing end cap in the axial direction of the plastic package stator, the annular clamping groove is provided with a bottom groove face towards the plastic package stator in the axial direction of the plastic package stator, a waterproof sealing film is formed on the bottom groove face in an injection molding mode or in a coated mode, and the waterproof sealing film is elastically compressed between the axial end face and the bottom groove face The plastic package stator and bearing end cap waterproof sealing structure prevents influences of a needle insertion hole, a detection hole and a detachment notch which probably exist in the radial outer surface of the annular clamping flange on the sealing effect of a waterproof sealing ring, and achieves the aims of improving the waterproof sealing effect between the plastic package stator and the bearing end cap.

The invention discloses a power supply charging box. The power supply charging box comprises a power supply outer shell, the two sides of the power supply outer shell are provided with flanges, a mainboard is arranged at the upper ends of the two flanges, the main board is installed on the upper end surfaces of the flanges through screws, a power supply module is arranged on the main board, and apower supply negative wire and a power supply positive wire are arranged at the input end of the power supply module; a fixed tube is arranged at the bottom of the main board, an integrated structureis arranged between the fixed tube and the power supply outer shell, the fixed tube is equal to the power supply outer shell in length, the end face is opened and the other end face is sealed, a movable cavity is formed in the middle of the fixed tube, and a circular connecting piece is arranged in the movable cavity. The power supply charging box has very good waterproof sealing performance andheat dissipation and ventilation performance, and can be effectively applied to outdoor occasions, and the power line can realize effective expansion, so that the power line is prevented from being pulled to drag the whole power supply main machine due to the good telescopic sliding performance, and therefore the power supply charging box can be applied to a complex outdoor environment.

The invention provides a wall surface rear-mounted type waterproof sleeve assembly and a wall body structure with the wall surface rear-mounted type waterproof sleeve assembly. The wall surface rear-mounted type waterproof sleeve assembly is arranged on an existing wall body where a sleeve hole is formed, and comprises a sleeve, a grouting template and a steel plate strip. The sleeve, the grouting template and the steel plate strip are sequentially arranged from outside to inside. A flange is arranged at one end of the sleeve, a covering plate is arranged at the other end of the sleeve, and a wing disc is arranged on the periphery of the sleeve. The diameter of the covering plate or the diameter of a inscribed circle is larger than that of the sleeve hole, the diameter of the flange and the diameter of the wing disc are smaller than the diameter of the sleeve hole, and a plurality of installation holes are formed in the flange. Grouting vent holes and stud holes are formed in the grouting template, and stud holes are also formed in the steel plate strip. The wall body structure which is installed by adopting the wall surface rear-mounted type waterproof sleeve assembly is convenient to construct and good in waterproof effect, the tedious operation in the process of conventional sleeve construction is avoided, the construction efficiency can be improved, and the risk of water leakage is also reduced.

The invention discloses a waterproofing treatment construction method for metal roof trepanning. The construction method comprises the following construction steps: cutting a metal roof panel, placing and arranging an architecture basket, mounting a support bracket, mounting a water diversion plate and applying a water-proofing gel on the periphery of a notch, mounting a base, and applying a waterproof coating on the outer layer. The waterproofing treatment construction method for metal roof trepanning, provided by the invention, has the characteristics that the problem of water leakage of a metal roof in the prior art is solved, the positioning is flexible, the bracket is convenient to mount, the construction cost is low, the water-proofing gel is not easy to age, the loosening of the periphery of the base is avoided, double guarantee is achieved, and the water-proofing effect is predominant.