155results about How to "Guaranteed waterproof performance" patented technology

This utility model discloses a partition plate for an outdoor unit of an air conditioner, including a main body with a water-guiding slope. The water-guiding slope is connected to an extension, and the extension is equipped with a heat dissipation structure. When the outdoor unit is operating, the condenser produces condensate. The fan rotation may throw the condensate towards the compressor compartment. The partition plate can block the water droplets, the water-guiding slope can cover the compressor, and the water droplets collected at the upper part of the partition plate are guided to the bottom of the casing. The heat dissipation structure can dissipate heat from the compressor compartment to the condenser compartment, preventing heat from the compressor compartment from being trapped and affecting the heat exchange performance of the outdoor unit. This outdoor unit's partition plate, by setting a water-guiding slope to cover the compressor and guide the water droplets adhering to it, and by setting an extension above the water-guiding slope to provide a heat dissipation structure, not only dissipates heat from the compressor compartment but also prevents water droplets from entering the compressor compartment through the heat dissipation structure, achieving both heat dissipation and waterproofing.

A waterproof panel lamp high in cost performance comprises a disc provided with a light source cavity and a waterproof connector arranged on one side of the disc, a light-transmitting panel is installed at an opening of the light source cavity through an aluminum frame, the edge of the light-transmitting panel is wrapped with a U-shaped sealing strip, the aluminum frame is of a square frame structure on the whole, and a step face is arranged at the connecting position of the aluminum frame and the disc. An opening in the lower portion of the disc is provided with an outer edge attached to the step face and fixedly connected through a screw, the edge of the step face is provided with a sinking groove, the screw is in threaded connection with the sinking groove, the edge of the lower portion of the aluminum frame horizontally extends to form an inner edge, the U-shaped sealing strip is arranged on the inner edge, and the connecting position of the outer edge and the disc is bent downwards to form a pressing edge. The pressing edge is pressed on the upper part of the U-shaped sealing strip; according to the panel lamp structure, the U-shaped sealing strip wraps the edge of the light-transmitting panel, the light-transmitting panel is installed at the opening of the disc through the aluminum frame, the aluminum frame and the disc are fixed through the screws, the pressing edge is arranged at the edge of the disc and connected to the U-shaped sealing strip in a pressed mode, and the whole connecting structure is simple, low in manufacturing cost and good in waterproof effect.

The present application relates to the technical field of electric control switch, in particular to a kind of motorcycle disc brake control switch, including shell, two wiring copper sheets, electricity connection copper sheet, slider and cover plate, installation cavity is provided in the shell, installation groove is opened in the symmetrical two inner side walls of installation cavity, and two The wiring copper sheet is fixedly inserted in installation groove;The present application is closed by the setting of cover plate and sleeve, the part of wiring copper sheet in installation cavity is isolated with external environment with electricity connection copper sheet, and the inside of the position of wiring copper sheet through shell can be sealed with sealing glue, simultaneously still can be filled into inert gas in installation cavity, to avoid the water vapor in environment into installation cavity, cause the part of wiring copper sheet in installation cavity and electricity connection copper sheet corrosion Problem, guarantee the conductive property of wiring copper sheet and electricity connection copper sheet, guarantee the stability and waterproof performance of motorcycle disc brake control switch.

The utility model belongs to carton layered partition board technical field discloses a kind of carton layered partition board, including a plurality of first partition board, the top end side of a plurality of first partition board is equipped with a plurality of first clamping slot, a plurality of first partition board are all connected with a plurality of second partition board by a plurality of first clamping slot clamping, the bottom end of second partition board is equipped with a plurality of second clamping slot corresponding a plurality of first clamping slot, the bottom end of second partition board is equipped with a plurality of connecting blocks, the both sides of connecting block are all connected with waterproof board, the bottom end of a plurality of first partition board and a plurality of second partition board is equipped with batten. The device simple and reasonable in structure, novel in design, easy to operate, with high practicability, it is convenient to widely use.

This utility model relates to the field of non-destructive testing technology and provides a modular acoustic vibration detection probe structure, including a housing and a locking mechanism. The locking mechanism is provided on one side of the surface of the housing, and a combination mechanism is provided at one end of the housing. The modular acoustic vibration detection probe structure provided by this solution, through the locking mechanism, first places the device in the detection area and fixes it to the detection area with an external knot or Velcro. Then, a wiring is connected to the external wiring interface, and real-time data during the detection is transmitted to the operator. When the corresponding sensor needs to be replaced, the battery pack is pulled out of the housing, and then the hidden handle on the corresponding integrated plate is pulled. During the pulling process, the locking block and the limiting block fixedly connected to the integrated plate change from a locked state to a sliding state. At the same time, the limiting block is pressed, and the limiting block overcomes the spring force and slides in the integrated groove, realizing the release operation.

The utility model provides a battery box for an electric vehicle, which comprises a box body with a top opening, a connecting bottom plate arranged at the bottom of an inner cavity of the box body, a plurality of connecting sockets arranged on the connecting bottom plate, a plurality of batteries arranged in the box body, connecting plugs arranged at the bottoms of the batteries and corresponding to the connecting sockets, and the connecting plugs are inserted into the connecting sockets. The top of the box body is provided with a wire outlet, the end of the wire extends out of the wire outlet and is connected with a motor of the electric vehicle, the top of the box body is further provided with a pressing rod, the bottom of the pressing rod is provided with a pressing block in a clamped mode, the bottom of the pressing block makes contact with the top of the battery, and the pressing block is made of elastic materials. According to the battery box for the electric vehicle, the connection of the battery and the connection socket is integrated in the box body, so that the connection plug can be conveniently aligned with the connection socket, the tight connection is ensured, and the normal operation of the electric vehicle is ensured; the pressing block prevents the battery from moving up and down, connection disconnection is prevented, and the elastic pressing block prevents the battery from being damaged due to extrusion on the battery when the pressing rod is pressed downwards.

A surgical device includes a housing, a circuit assembly, a drive element, a cutter, and an input assembly. The circuit assembly is arranged in the shell. The driving element is arranged in the shell and is electrically connected to the circuit assembly. The cutter is connected to the driving element and is driven by the driving element. The cutter protrudes from the first end of the housing. The input assembly comprises a nameplate and at least one key switch. The at least one key switch is arranged in the nameplate and electrically connected to the circuit assembly. The nameplate is arranged on the shell and exposed outside.

The application relates to the technical field of building waterproofing, and discloses a composite waterproof structure for a high-pressure water environment and a construction method thereof, which comprises a concrete base body including a bearing platform and a raft, the bearing platform is located on the upper surface of the raft and the side wall is exposed, a gradient pressure-resistant waterproof layer covers the exposed surfaces of the side wall of the bearing platform and the plane of the raft, and the gradient pressure-resistant waterproof layer comprises, from inside to outside, an interface reinforcing layer, a permeable epoxy resin layer which penetrates into the surface of the concrete base body by 0.5-1 mm in depth, and a dynamic response layer which is a polyurethane-rubber composite elastomer layer and is tightly attached to the outer surface of the interface reinforcing layer. The gradient pressure-resistant waterproof layer composed of the interface reinforcing layer, the dynamic response layer and a rigid protective layer is combined with the bearing platform and the raft in the concrete base body, and the rigid protective layer enhances the wear resistance, so that the composite waterproof structure with high pressure resistance and high wear resistance is realized, and the stability and durability of the waterproof structure in the high-pressure water environment are effectively improved.

This application provides a speaker enclosure, relating to the field of electroacoustic technology. The speaker enclosure provided by this application includes: a cabinet; a loudspeaker disposed within the cabinet enclosure and including a diaphragm; a support plate covering the first end of the cabinet enclosure, the support plate having multiple rear cavity sound outlet holes; a waterproof layer disposed on the side of the support plate facing the interior of the cabinet enclosure; a partition plate disposed within the cabinet enclosure, forming a buffer cavity between the inner wall of the cabinet enclosure, the waterproof layer, and the partition plate; and a bass enhancement structure disposed within the cabinet enclosure, including an acoustic channel, forming a rear cavity of the speaker enclosure between the partition plate, the inner wall of the cabinet enclosure, and the back surface of the diaphragm, the acoustic channel connecting the buffer cavity and the rear cavity. This application provides a speaker enclosure that combines bass enhancement and waterproofing.

The invention discloses a water stop structure with a prefabricated bottom plate serving as a construction platform of a hanging box cofferdam and a construction method.The water stop structure comprises the prefabricated concrete bottom plate and a steel stand column, the prefabricated concrete bottom plate is provided with an avoiding hole allowing the steel stand column to penetrate through, the steel stand column is sleeved with an annular bracket, and the annular bracket is located below the prefabricated concrete bottom plate; a first waterproof piece is arranged on the inner wall of the annular bracket, a second waterproof piece is arranged between the annular bracket and the prefabricated concrete, and a mounting seat connected with the annular bracket is connected to the steel stand column. The prefabricated concrete bottom plate can be used as a construction platform, drilling and other working procedures can be carried out, after construction of other working procedures is completed, the prefabricated concrete bottom plate is lowered to the water surface, the prefabricated concrete bottom plate serves as a bottom plate of the cofferdam structure, and the annular bracket is attached to the bottom face of the prefabricated concrete bottom plate through the mounting base; and the first waterproof part and the second waterproof part can work conveniently, waterproof mortar can be poured into the avoiding holes conveniently, and the waterproofness between the prefabricated concrete bottom plate and the steel stand column is guaranteed.

The utility model discloses a rain -proof straw -plaited hat of lining, including rain -proof mechanism, rain -proof mechanism includes cap body, with cloth one and cloth two of cap body inner wall connection, with magic tape hair surface of cloth one bottom connection, with magic tape hook surface of cloth two top connection. In the utility model, in rainy day, user inserts cloth one, cloth two into cap body, then magic tape hair surface and magic tape hook surface bond, ensure that cloth one, cloth two connect firmly, form a good rain -proof layer, then the rainwater that passes through cap body trickles, enter into drainage space, then again by a plurality of short -tubing discharge, thereby avoid rainwater to drench user's head, then under the weather of sun -shining, user unfasten magic tape hair surface and magic tape hook surface, make cloth one, cloth two surround and block at user's face both sides and rear neck position, thereby improve the sun -resistance, and environmental adaptability is good.

The utility model belongs to connector technical field especially relates to a waterproof line strip lamp connector, including the connector casing that is equipped with first installation groove, detachable installation in connector casing and located first installation groove on the open edge horizontal cover plate and silica gel gasket, horizontal cover plate is equipped with the outlet hole and is located the second installation groove in the outlet hole periphery side, silica gel gasket is set in the outlet hole periphery side and is embedded in the second installation groove, pours glue and will cover horizontal cover plate, the power cord is led out from the outlet hole, after the glue solidification, the side that horizontal cover plate and lamp fitting contact installation is the even surface, and when connector casing is installed to the lamp fitting, the lamp fitting and horizontal cover plate extrude silica gel gasket, and the sealing property is good, not only guarantees waterproof performance, and reduces secondary dispensing artificial cost.

The utility model discloses a safety plugging assembly special for charging and discharging of a new energy automobile, which comprises a charging gun plug, the charging gun plug is respectively provided with a three-pin plugging sheet I and two cylindrical grooves, and probes are fixed in the cylindrical grooves; a slot matched with the charging gun plug is formed in one side of the conversion plug, the charging gun plug is connected with the slot in a pluggable mode, a three-pin jack matched with the first three-pin insertion piece and two protruding columns connected with the two cylindrical grooves in a pluggable mode one by one are arranged in the slot, spring needles are fixed in the protruding columns, and the spring needles are connected with the two cylindrical grooves in a pluggable mode. The other side corresponding to the conversion plug is an external plugging area, a resistor and ground wire hardware are fixed in the conversion plug, two ends of the ground wire hardware are respectively in one-to-one correspondence with the ground wire hole site on the three-pin jack and the external plugging area, one end of the spring needle is in contact conduction with the corresponding probe, and the other end of the spring needle is electrically connected with the ground wire hardware through the resistor. The utility model has the beneficial effect that the purpose of improving the use convenience is achieved.

This utility model provides a pull-out dispensing medicine box, comprising: a through-wall box, the inside of which is divided into several compartments perpendicular to the through-wall, each compartment having a baffle protruding from its inner wall at both its front and rear ends; several inner boxes with openings at the top, each inner box correspondingly placed within a compartment, and each inner box having a baffle in the middle of its bottom. When the inner boxes are pulled out from the compartments, the baffle is blocked by the baffles. This pull-out dispensing medicine box features a simple structure, convenient and safe operation, and is waterproof and moisture-proof.

This invention discloses a bio-based biodegradable synthetic leather material and its preparation method, belonging to the field of polymer synthetic leather material manufacturing and modification technology. The method includes: mixing and dehydrating castor oil polyol, lignin-based polyol, and bio-based polycarbonate diol; adding isocyanate and a bio-based chain extender containing dynamic disulfide bonds to react and obtain a bio-based polyurethane resin; dissolving the resin in a solvent; adding amphiphilic modified nanocellulose whiskers, polydopamine-modified silica, bio-based epoxidized soybean oil, a pore-forming agent, and a stabilizer to obtain a synthetic leather coating solution; coating the coating solution onto a base fabric to form a wet film; gradient solidification; washing with water; and drying to obtain the bio-based biodegradable synthetic leather material. This invention improves the crosslinking stability and interlayer bonding force of the material under hygrothermal aging by using dynamic disulfide bond self-repair, nanoparticle interface enhancement, and gradient solidification to regulate the pore structure, reducing the release of volatile organic compounds, and balancing water resistance, moisture permeability, and biodegradability.

The invention belongs to the related technical field of intelligent sportswear, and particularly relates to a solar AI intelligent sportswear, which comprises an outdoor jacket main body, at least three flexible amorphous silicon film power generation modules, an energy management module, an energy storage unit, an electricity load and a flexible conductive circuit for interconnecting the flexible amorphous silicon film power generation modules, the energy management module, the energy storage unit and the electricity load. The flexible amorphous silicon film power generation modules are optimally arranged in high-sunlight areas such as the rear of the brim and the shoulders and are combined with the garment through the hot-pressing composite technology, sewing needle holes are avoided, the original elasticity, soft touch feeling and appearance smoothness of the garment are kept, and the service life of the garment is prolonged. The non-sensibility of the power generation function and the non-destructive effect of the clothes movement function are realized; according to the power generation module, ETFE / PI'sandwich 'packaging and ultrasonic welding edge sealing are adopted, and a waterproof moisture-permeable hot melt adhesive composite technology is matched, so that multi-layer protection is jointly formed.

The invention discloses a self-adaptive waterproof sealing device for a lap joint of a steel structure roof and a construction method.The self-adaptive waterproof sealing device comprises a profiled steel sheet, a low section is formed at one end of the profiled steel sheet, and a high section is formed at the other end of the profiled steel sheet, so that when the profiled steel sheet is installed on the roof, the lap joint is formed between the low section of the profiled steel sheet and the high section of another profiled steel sheet adjacent to the profiled steel sheet; the sealing piece comprises a special-shaped section located in the lap joint seam, a first clamping section arranged on the two sides of the special-shaped section and clamped with the high section, and a second clamping section arranged on the two sides of the special-shaped section and clamped with the low section, so that a cavity is formed between the special-shaped section and the high section. The elastic piece is located in the cavity and matched with the cavity in shape, and the elastic piece is in a compressed shape that the top of the elastic piece is tightly attached to the high section and drives the position, corresponding to the cavity, of the special-shaped section to be tightly attached to the low section at the same time; and two ends of the limiting piece are respectively clamped with the high-section end part and the low-section end part. Dynamic deformation of the lap joint seam can be automatically compensated, and the waterproof sealing effect of the lap joint seam is guaranteed.

The utility model relates to a reinforcing tire base soaking and compacting device, and belongs to the technical field of tire base processing, the reinforcing tire base soaking and compacting device comprises an oil immersion pool, an unwinding roller is erected on the oil immersion pool, a first compacting assembly is arranged in the oil immersion pool, and the first compacting assembly comprises a first lower pressing roller and a first fixing roller; the first fixed roller is rotationally arranged relative to the oil immersion pool, the center line of the rotating shaft coincides with the center line of the first fixed roller, and the first lower pressing roller is arranged on the oil immersion pool in a sliding mode and slides in the direction close to or away from the first fixed roller; a vibration assembly for vibration of the tire base is arranged above the oil immersion pool; and a guide roller is further arranged in the oil immersion pool and located on the side, away from the first compaction assembly, of the vibration assembly, and the effect of improving the filling rate of gaps between fibers in the tire base in the oil immersion procedure is achieved.

The utility model relates to electric motor car charging mouth technical field especially, relates to a kind of electric motor car charging interface waterproof sealing structure, including the car body for as structure main body, charging mouth is equipped on the car body, the charging head for the car body charging can be installed in the charging mouth, the protective shell for preventing water is installed in the charging mouth, the bottom of the protective shell is equipped with multiple ventilation openings for facilitating heat dissipation, the bottom of the protective shell is fixedly connected with connecting line.The utility model sets up protective shell and sealing plate, so that electric motor car can effectively protect charging mouth when not charging, when the car body needs to be charged, the sealing plate is separated from the protective shell by round plate pulling, at this time, the charging head is connected with the charging mouth, so that the sealing strip and the inner wall of the protective shell are matched, the connecting plate is attached to the protective shell, thereby completing waterproof protection of the charging head charging mouth, ensuring the waterproof effect of the charging interface.

This invention discloses a deeply waterproof socket, comprising: a main panel with a plug hole for connecting an electrical wire; a protective assembly including a bottom shell and a top cover rotatably connected to the bottom shell, the top cover being connected to an insert strip, the bottom shell having an insert groove, the insert strip engaging with the insert groove, and a sliding groove on the side wall of the bottom shell communicating with the insert groove; and a protective film covering a plug inserted into the plug hole, with sliding blocks at both ends of the protective film, the sliding blocks being positioned within the sliding groove, and the insert strip capable of pressing down on the sliding blocks. The advantages of this invention are: it ensures waterproof performance and improves the usability of the socket.

The utility model discloses a waterproof moxibustion heat patch which comprises a first film body, the first film body is made of PU waterproof materials, a ring body is installed on the first film body, two sets of clamping grooves are formed in the ring body, sliding grooves are formed in one sides of the two sets of clamping grooves, a cover body is placed on the ring body in an attached mode, and two sets of clamping blocks are installed on the cover body. Firstly, the cover body is placed on the second film body in the plaster, the plaster is flatly paved and uniformly touched on the second film body, then the cover body is taken up to enable the clamping block on the cover body to be aligned and clamped with the clamping groove in the corresponding ring body, and the clamping block is rotated to enable the clamping block to rotate through the sliding groove, so that the cover body can be prevented from falling off; at the moment, the moxibustion heat patch is taken to be aligned with the position where the plaster needs to be pasted and pasted on the moxibustion heat patch, it can be guaranteed that the plaster cannot drip or plaster liquid flows to the adhesive part when the moxibustion heat patch is taken at any angle, and therefore it can be guaranteed that the viscosity of the adhesive part is not affected, and the waterproofness of the moxibustion heat patch is guaranteed.

The utility model discloses a waterproof structure for constructional engineering, which relates to the technical field of building waterproofing and comprises a plurality of waterproof units, each waterproof unit comprises an assembly frame, a diversion structure and a drainage structure, and the diversion structures and the drainage structures are arranged on the upper portion and the lower portion of the assembly frame. The drainage structure comprises a drainage tile plate and a lap joint part connected with the edge of the drainage tile plate, and the lap joint part is used for transverse splicing of adjacent waterproof units. A first limiting part and a second limiting part are arranged on the sides, away from the assembly frame, of the flow guide structure and the drainage structure correspondingly and used for longitudinal splicing of the adjacent waterproof units. According to the utility model, the arrangement of a waterproof environment is completed through the arrangement of the plurality of waterproof units in a transverse and longitudinal splicing manner, and meanwhile, the flow guide structure and the drainage structure of the single waterproof unit are distributed up and down, so that the drainage and drainage of rainwater are realized, the waterproof effect is ensured, and the rainwater accumulation is reduced.

The application discloses a waterproof key structure of a smart wearable device and the smart wearable device, and relates to the technical field of smart wearable devices. The waterproof key structure comprises a shell, a pressing sheet and a key. A containing hole is formed through the shell, and the pressing sheet is fixed on the shell. The pressing sheet is in sealing cooperation with the part of the shell located at the outer periphery of the outer end of the containing hole. The pressing sheet is provided with a pressing sheet mounting hole communicating with the containing hole, the key extends into the containing hole through the pressing sheet mounting hole, the key is in sealing cooperation with the pressing sheet mounting hole, the key can rotate and / or slide relative to the shell, and a sealing ring is arranged between the hole wall of the containing hole and the key to prevent water. The sealing connection between the pressing sheet and the shell and the arrangement of the sealing ring can realize the sealing between the key and the shell, multiple waterproofing of the key can be realized, the waterproof performance can be ensured, and external liquid can be effectively prevented from entering the inside of the shell through the gap between the containing hole and the key.

The utility model discloses a waterproof and ventilating structure of solar tracking motor relates to solar tracking motor technical field, including motor body, and the one end of motor body is provided with the protective housing through the connecting mechanism, and the outer surface of protective housing one end evenly is equipped with a plurality of air inlet holes. The utility model improves waterproof capacity through multiple waterproof design, and the sealing sleeve and sealing ring between protective housing and motor body form double sealing, and the water of connecting part is blocked, and the waterproof and ventilating membrane in air inlet hole prevents liquid water from entering, and the internal waterlogging of diversion groove is dredged, and the problem that the existing open ventilating type motor is easy to enter water is solved comprehensively, and secondly, while ensuring waterproof, optimizing ventilation and filtering performance, the air circulation of air inlet hole guarantees and satisfies the heat dissipation demand, and the filter screen filters the impurity, and the installation frame realizes convenient dismounting through sliding block, sliding slot and threaded column, nut, is convenient for maintaining, and ventilation and heat dissipation and impurity protection are given full consideration to, and the practicability and life of motor are improved.

A sensing device with camera function includes a housing, a Fresnel lens, a baffle, and a sensing control module installed within the housing. The baffle is positioned opposite the Fresnel lens and has a window. The sensing control module includes a motion sensor. The baffle divides the inner cavity of the housing into a sealed sensing cavity and a mounting cavity. The motion sensor is fixedly connected within the mounting cavity and detects external motion signals through the Fresnel lens via the window. The device also includes a camera installed within the mounting cavity. The housing has a camera aperture on the same side as the Fresnel lens, and the camera head is mounted within the camera aperture. This invention also provides a security light using the above-described sensing device. Compared with existing technologies, the sensing device of this invention integrates motion sensor detection and image / video recording functions, improving security performance.

This utility model relates to the field of logistics and transportation technology, and discloses a logistics turnover box, comprising: a box body having an opening and a receiving cavity communicating with the opening, the opening of the box body having a first hinge portion; a box lid having a second hinge portion on its side near the box body that is hinged to the first hinge portion, the box lid being able to close the receiving cavity when closed on the box body; and a hinge drainage channel provided on the box body and located around the first hinge portion, the hinge drainage channel being used to collect water falling at the hinge point of the first hinge portion and the second hinge portion and drain it to the outside of the box body. This utility model provides a hinge drainage channel to collect rainwater and other water stains, draining water falling at the hinge point of the first hinge portion and the second hinge portion to the outside of the box body, thereby preventing rainwater and other water stains from flowing into the box body through the rotating connection between the box lid and the box body, ensuring the waterproof performance of the logistics turnover box, and preventing the items transported inside from getting wet and damaged.

This application relates to the field of household appliance technology, and discloses a water-blocking component for an air conditioner. The air conditioner includes a casing, and a component to be cooled is disposed inside the casing. The water-blocking component includes a partition and a handle. The partition is disposed on one side of the casing, and the partition has an air outlet corresponding to the component to be cooled. The handle is disposed on the outside of the partition, and a side air inlet is disposed on the side wall of the handle. A heat dissipation duct is disposed between the partition and the handle, and the heat dissipation duct is connected to the side air inlet and the air outlet respectively, and the height of the side air inlet is lower than the height of the air outlet. The component to be cooled can be a control element such as an inverter chip inside the air conditioner. This arrangement can shorten the distance between the side air inlet and the component to be cooled while ensuring waterproofing, thereby improving the heat dissipation effect. This application also discloses an air conditioner.

This invention discloses a method for manufacturing a fluorine-free water-repellent upper. The method includes: providing a waterproof layer woven from yarn treated with fluorine-free waterproofing; providing an inner lining layer knitted from cotton blend yarn; sewing multiple deformation-resistant yarns to the surface of the waterproof layer, extending the yarns from the forefoot area to the heel area; overlapping and fixing the waterproof layer and the inner lining layer to form the upper body; and fixing a waterproof and breathable membrane to at least a portion of the outer surface of the waterproof layer to obtain the finished upper. This invention solves the problems of environmental pollution, performance degradation after washing, and easy pore expansion and water seepage in existing water-repellent upper treatments by combining the sewing and fixing of deformation-resistant yarns with fluorine-free waterproofing. It has the advantages of being environmentally friendly, providing long-lasting water repellency, and having strong deformation resistance.

A kind of steel roof eaves wind-resistant structure, it relates to steel roof technical field, including batten board, multiple self-tapping screws and sealing device.Self-tapping screw passes through the opening on batten board and is connected with eaves beam, and compacts roof board;The diameter of opening is larger than the major diameter of screw, and sealing device is arranged in it, including protective sleeve embedded in hole and sealing ring arranged between screw and protective sleeve, sealing ring is expanded and tightly holds screw when screw is compacted and compacts roof board, and sealing is realized.Ring-shaped gasket and its bottom boss, annular groove on screw, and bending protrusion on batten board are arranged.Sealing device is arranged in the inside of opening, and is less affected by ultraviolet rays, rain, temperature difference and the like, has long service life, and is easy to maintain.The utility model improves the wind resistance and long-term sealing stability of roof.

This invention relates to the field of support structure technology, specifically to a prefabricated double-row steel sheet pile foundation pit support structure and construction method. The support structure includes a locking mechanism and a protective mechanism. The locking mechanism includes a lock body, an airbag block, and a sealing connection part. The lock body is a plate-shaped structure with slots on both side walls. An air cavity is formed inside the lock body. An opening communicating with the air cavity is formed on the inner wall of the slot. The airbag block is located on the inner wall of the slot and communicates with the opening. Multiple circular openings a communicating with the air cavity are formed on the inner wall of the slot. Multiple sets of sealing connection parts are provided and connected inside the air cavity. The protective mechanism includes a protective plate and an elastic membrane. Two sets of protective plates are respectively attached to both sides of the steel sheet pile body and detachably connected to them. Multiple grooves are formed on the protective plate. The elastic membrane is connected to the groove openings. This invention can significantly reduce the friction between the steel sheet pile and the locking body, as well as the friction between the steel sheet pile body and the soil sidewall, thereby reducing the difficulty of pile extraction.