88results about How to "Make sure it doesn't leak" patented technology

The invention relates to a maintenance method for shield equipment and discloses a method for replacing a tail brush in a shield tunnel through liquid nitrogen freezing. The method comprises the following processing steps: 1, preparation of construction; 2, construction of freezing holes; 3, installation of a freezing system and a temperature measuring system; 4, construction of liquid nitrogen freezing; 5, construction of sealing maintenance of a shield tail; 6, construction of formation sealing of the freezing holes; 7, construction of forced thawing; and 8, construction of propulsion of shield recovery. According to the invention, stratum is frozen through a liquid nitrogen freezing method to form a frozen curtain, so that the defect of indeterminacy of a traditional grouting method for carrying out the treatment of stratum consolidation and water sealing to bearing pressure permeable stratum can be avoided; and the method has the advantages of high strength, good uniformity, good water-resisting property and the like.

The invention discloses a new method for plugging a dewatering well in a basement. The method comprises the following steps: inserting a sand-free concrete pipe into the ground for 30 meters; jacketing a steel pipe on the sand-free concrete pipe and placing a dewatering pump for draining in the steel pipe; arranging a water-stopping ring at the middle part outside the steel pipe, wherein the water-stopping ring is formed by a steel plate with a diameter of Phi 1000*4; uniformly welding short reinforcing steel bars along the inner wall of the steel pipe in the position at least 800mm away from the top in the steel pipe, thereby forming a bracket; pouring concrete at the periphery of the steel pipe so as to form a swirl well base plate, wherein a pouring height is parallel to the height of the steel pipe; taking the dewatering pump out of the steel pipe after the concrete reaches a certain strength; placing a circular steel plate to the position of the bracket formed by the short reinforcing steel bars, and plugging a pipe opening; polishing beveled edges on the periphery of the circular steel plate and tightly welding the beveled edges and the inner wall of the steel pipe; pouring concrete into the steel pipe, wherein the pouring height is at least 20mm away from the top of the pipe opening; and after solidifying the concrete, covering with the circular steel plate, polishing beveled edges on the periphery of the circular steel plate and tightly welding the beveled edges and the inner wall of the steel pipe, and then flatting and sealing the top with cement plaster. The new method provided by the invention is used for efficiently solving the problem of plugging the dewatering well in the basement.

The invention relates to a forming mold of a square single-wall corrugated pipe. A split type mold structure is adopted; a square hole 1a is milled on a mold body 1; a semicircular groove 1b is formed; then a processed inlaying ring 2 is pressed in the semicircular groove 1b of the mold body 1 by using a pressing block 3; and finally the shape of the square single-wall corrugated pipe is formed. Compared with the existing integral structure, the split type structure is simpler in processing technology and shorter in production period, and is suitable for batch production. A vacuum passage, a sealing device and an open type water pouring cooling passage are further arranged on the mold body 1, so that vacuum shaping and cooling of the square single-wall corrugated pipe are realized. The forming mold in such structure is good in vacuum shaping and quick in cooling speed; the produced square single-wall corrugated pipe is stable in each performance, good in exterior quality and low in energy consumption; and the production cost is saved.

The invention relates to a continuous casting method of concrete in the liquid storage structure, belonging to the on-site casting technique of construction wall, that continuously casting the wall plate and the bottom plate, to shorten the construction period. Said method comprises that: first, casting the bottom plate concrete, and bonding the bottom plate and wall plate steel bar, to complete the constructions of the moulds of wall plate and bottom plate; along the wall plate, casting concrete layered and segmented symmetry. The invention is characterized in that: the casting time difference of nearby two construction sections of nearby two construction layers is less than the coagulation solidifying time of used concrete.

The invention relates to a heavy-caliber reinforced concrete pipe pull-type opening alignment method. The method is characterized by including the following steps that a, a pipe installation longitudinal center line is formed on a reinforced concrete base plate (1) in a popping manner; b, a winch (2) is installed on the reinforced concrete base plate (1); c, a baffle (8) is installed at the crossing point of the pipe installation longitudinal center line formed in the popping manner and a transverse starting pint line of a first-section pipe (5); d, heel blocks (4) are symmetrically placed on the two sides of the pipe installation longitudinal center line formed in the popping manner; e, the first-section pipe (5) is hoisted by a crane to the concrete wedge-shaped heel blocks (4) to be in place; f, the pipe top elevation is rechecked; g, a second-section pipe (6) is hoisted to the concrete wedge-shaped heel blocks (4) to be in place; h, the step f is repeatedly executed; I, a steel wire rope (3) of the winch (2) penetrates the interior of the first-section pipe (5) and the interior of the second-section pipe (6); k, the step g to step j are repeatedly executed, and a next-section pipe is installed; and l, after pipe installation is completed, the winch (2) and the baffle (8) are dismounted, and a next work procedure is executed for construction. The heavy-caliber reinforced concrete pipe pull-type opening alignment method has the beneficial effects that pipe opening alignment is simple, and operation is easy and convenient.

The invention provides an ultra-deep shield interval air shaft tunnel-ahead and main-body-following construction method. The method includes the following steps that firstly, an air shaft concrete diaphragm wall is constructed, an air shaft portal is reinforced, a shield tunneling machine excavates and penetrates through an air shaft after the portal is reinforced, and in the tunneling process, the connection area of the air shaft and a tunnel, the joint of the tunnel and the air shaft concrete diaphragm wall and duct pieces in the ten-ring range outside the air shaft are reinforced; then latticed columns and a precipitation well are constructed until the precipitation effect of a foundation pit meets a foundation pit excavation requirement, then the foundation pit is excavated, and the duct pieces are detached; and finally, a concrete ring beam is constructed. The method is simple in construction procedure, the shield tunneling machine does not need to be used for receiving, a receiving frame does not need to be installed or detached, precipitation outside the pit, portal blasting and the like are not needed, the safety risk that the shield tunneling machine passes through the airshaft is greatly reduced, and meanwhile, the construction period is saved. The construction method is suitable for the interval air shaft which starts to work late, and is also suitable for the conditions that a stratum, penetrated by the shield tunneling machine, of the air shaft is located in the middle of a confined water layer, underground water resources are rich and the water permeability of the stratum is large.

The invention relates to a magnetometric split spatial tilting shaft waterpower self-control gate. The gate comprises a gate chamber composed of gate piers and a gate base plate which are poured into a whole. The gate piers are symmetrically arranged on the two sides of the gate base plate. The gate further comprises split gate bodies, spatial tilting shafts and a magnetometric device. The spatial tilting shafts are symmetrically arranged on the gate piers arranged on the two sides. An included angle alpha is formed between the spatial tilting shafts and the gate base plate, and an included angle beta is formed between the spatial tilting shafts and a vertical plane parallel to the upstream direction and the downstream direction. Upstream section gate pier planes and downstream section gate pier planes of the positions, where the spatial tilting shafts are installed, of the inner sides of the gate chamber are designed to be pinch planes. The split gate bodies are fixed to the spatial tilting shafts arranged on the gate piers on the two sides. The split gate bodies are provided with gate pier magnets and gate body magnets. The gate pier magnets and the gate body magnets are provided with the same magnetic pole. Each gate body magnet is arranged in the middle of the edge of the corresponding gate body. According to the magnetometric split spatial tilting shaft waterpower self-control gate, automatic opening and closing of the gate can be achieved without externally supplied power according to the upstream inflow condition; the gradual opening property of the gate is good; the purposes of water storage and water drainage are better achieved automatically.

The invention provides a composite waterproof layer for environmental engineering and a preparing and constructing method thereof. The preparing and constructing method comprises the steps that polymer waterproof sheets are laid on and attached to the surface of an environmental engineering building, and lap joint seam processing is conducted between the adjacent polymer waterproof sheets in a glue bonding or welding or lap joint mode; the lap joint seam parts of the polymer waterproof sheets are provided with non-woven fabric in a laying and attaching mode or is coated with hand brush materials; first layers of rapid hardening rubber asphalt waterproof coatings are sprayed on the lap joint seam parts, and the rapid hardening rubber asphalt waterproof coatings are rapid hardening polymer emulsion state waterproof coatings formed by emulsified asphalt, a polymer rubber modifier and an additive in an emulsification crosslinking mode, a second layer of rapid hardening rubber asphalt waterproof coating is integrally sprayed on the surfaces of the poly waterproof sheets.

A throw-type urine collector comprises a urine collecting frame with upward and incline opening, an urine receiving room connected with the urine collecting frame, and a flexible neck between the collecting frame and the receiving room, wherein the opening of the frame and the flexible neck can contact female genital organ tightly, with stable operation, while the opening can be added with a water-adsorption cover material to improve feeling and absorb urine to avoid urine leakage. The receiving room is stuffed with macromolecule absorbers, with a cotton tube extended downwards with capillary function to the lower layer, to guide urine completely into the receiving room. The side of the collector is arranged with a movable tape, therefore, when the collector has been used, the frame can be bended and flattened into side edges to be fixed by tape and thrown out. The invention can be used outdoor or travel.

The invention discloses a full-seal waterproof system of a concrete construction project, and belongs to the field of building waterproofing. The full-seal waterproof system comprises a fundamental face and a waterproof roll layer laid and pasted to the fundamental face in a sealed mode. Abnormal-shaped portions are arranged on the fundamental face. The connecting transition portions between the abnormal-shaped portions and the fundamental face are coated with sealing paste waterproof layers, and the sealing paste waterproof layers are in lap joint with the waterproof roll layer in a sealed and bonded mode. The chemical bonding reaction and the physical crosslinking effect can be carried out on the waterproof roll layer and cast-in-place concrete. Waterproof rolls are formed by combining multiple material layers, including a reaction pasting sealant layer, a macromoleculer isolating membrane layer and a fiber structure basic layer, with reactivity. The full-seal waterproof system pays attention to the large-area waterproof effect, and effective measures are taken for each weak waterproof joint for leaking stoppage; in addition, the raw materials of the waterproof rolls and the raw materials of sealing paste are compatible and coincident in property, the nature of the waterproof rolls and the nature of the sealing paste are close, seamless combining of the waterproof rolls and the sealing paste can be guaranteed, and the full-seal and all-dimensional waterproof effect and the waterproof effect of completely avoiding leaking can be achieved.

The invention discloses an induced crack structure of a frame bridge, which is an induced crack structure arranged in a frame bridge and used for improving stress cracks in concrete of a long box jacking frame and a water seepage phenomenon at joints of frame sections, and belongs to the technical field of jacking construction. The induced crack structure comprises an induced crack arranged in the frame bridge, a crack filling plate (7) is arranged in the induced crack, a plurality of steel shear pins (5) arranged along the length direction of a frame are arranged in side walls on both sides of the frame at the induced crack along the height direction of the frame at a certain interval, the steel shear pins (5) pass through the crack filling plate (7), and the outer side of a top plate of the induced joint, the outer sides of the side walls on both sides of the frame and the inner side of the frame are respectively provided with a waterproof layer. The induced crack structure disclosed by the invention is simple in structure, and can effectively improve a phenomenon that a concrete frame structure has more cracks under the influence of concrete stress, therefore, the accumulative jacking deviation generated by the multiple jacking of a multi-section frame is greatly reduced, and the project quality is improved, meanwhile, the construction period can be greatly shortened, and the construction cost can be reduced.

The invention discloses a sleep perfume bag for insomnia patients. The sleep perfume bag is prepared from the following raw materials in parts by weight of 8-12 parts of grassleaf sweetflag rhizomes,10-15 parts of dried orange peel, 8-12 parts of radix angelicae, 2-5 parts of borneol, 10-20 parts of caulis polygoni multiflori, 10-20 parts of lavender, 8-12 parts of rose flowers, 10-20 parts of argy wormwood leaves and 8-12 parts of mint. The perfume bag can act on human bodies by smelling, sucking and the like, has the efficacy of soothing liver, regulating qi, promoting blood circulation forremoving obstruction in collaterals, dissipating dampness, activating the spleen, quieting the heart and soothing the nerves, can relieve sleep disorders of the insomnia patients at different degrees, and is safe and effective. Traditional Chinese medicines in the perfume bag are crushed to 60-80 meshes, so that release of effective components is facilitated, and the drug property is developed. In addition, the traditional Chinese medicine powder is packed with a heat-sealed type filter bag, and a bag of the perfume bag is externally made from cotton-flax cloth, so that the sleep perfume bagis favorable for effective volatilization of smell, and can guarantee the powder from being leaked outwards.

The invention provides a waterproof and heat-insulation structure of a planting top plate. The waterproof and heat-insulation structure sequentially comprises a waterproof steel reinforced concrete top plate, a second cement mortar leveling layer, a common waterproof layer, a heat-insulation layer, a first cement mortar leveling layer, a root resistance coiled material waterproof layer, an isolation layer, a C20 fine stone concrete protection layer, a concave-convex water drainage plate or water storage plate, a filtering layer, planting soil and a vegetation layer from bottom to top, wherein the root resistance coiled material waterproof layer is a root resistance coiled material; and the common waterproof layer is one out of a high-grade composite D-type self-adhered waterproof coiled material with the thickness of not smaller than 2.0mm, a double-layered high density polyethylene laminated composite self-adhered waterproof coiled material with the thickness which is not smaller than 1.5mm and a composite macromolecular self-adhered waterproof coiled material with the thickness of smaller than 1.5mm. With the adoption of the structure provided by the invention, the waterproof effect is guaranteed and the service life is prolonged; the heat-insulation effect is good and water does not leak; and the construction period is greatly shortened and the structure is suitable for the growth of vegetation.

The invention discloses a dual-mode imaging system and method for achieving XCT and photoacoustic tomography. The mode of photoacoustic and XCT dual-mode same-machine fused imaging is adopted, photoacoustic tomography tissue optical absorption comparison and XCT density comparison are combined, the interpretation accuracy of a photoacoustic tomography structure is further improved, and information complementary dual-mode imaging is achieved. A traditional vertical hanging rotation mode is changed, a rotary table is arranged at the bottom of a water trough, sealing between the rotary table and the bottom of the water trough is achieved through a waterproof bearing, the water trough is fixed, a sample is immersed in water, the rotary table rotates to drive the sample to rotate, accordingly 360-degree sample scanning is completed, and it is ensured that the water trough is water-tight and a photoacoustic signal of the sample is conducted in an undamped mode.

The invention discloses a household intelligent ultraviolet lamp. The household intelligent ultraviolet lamp is characterized in that rollers are arranged at the bottom of a base; a supporting post is arranged at the upper left end of the base; a transverse rod is arranged at the upper end of the supporting post; a lampshade is arranged at the tail end of the transverse rod; an ultraviolet lamp tube is arranged in the lampshade; a plurality of cooling strips are arranged on the outer side of the lampshade at equal intervals; a fan is arranged in the position, on the right side of the supporting post, of the base; parallel light reflection mirrors are arranged around the fan, and the inner side of each light reflection mirror is coated with a photocatalyst coating; a controller is arranged in the position, close to the supporting post, of the base, and the controller is provided with a signal receiver; and an infrared inductor is arranged on the front side of the base. The light reflection mirrors can gather ultraviolet light in the space defined by the light reflection mirrors, and human bodies are protected against irradiation of the ultraviolet light while the air sterilization efficiency can be effectively improved. The photocatalyst coatings can purify air. The fan can blow sterilized or purified air to the outside, so that air in a house circulates, and large-area sterilization or purification of indoor air is achieved. Thus, the air quality is greatly improved.

The invention provides cooking ware. The cooking ware comprises a plurality of steaming trays stacked in the vertical direction, wherein each steaming tray comprises an airtight tray bottom arranged at the bottom and a plurality of air inlets formed in the peripheral wall, the air inlets are used for introducing steam; a first connecting part is arranged at the upper edge of each steaming tray, and a second connecting part is arranged at the lower edge of the steaming tray; every two adjacent steaming trays are integrally stacked through the first connecting part and the second connecting partwhich are arranged oppositely. By forming the air inlets in each steaming tray, independent air supply of each steaming tray can be guaranteed, and the steaming trays are provided with the airtight tray bottoms as well as the first connecting parts and the second connecting parts capable of realizing mutual closed connection, so that the problem of taint of odor when different food is steamed bya steamer is solved.

The invention relates to a frame-embedded photovoltaic power-generating roof bracket which comprises an upright pole, wherein a steel frame is installed on the upright pole, solar battery assemblies are installed on the steel frame by a bracket which comprises profile frames, the solar battery assemblies are installed in the profile frames, the profile frames are provided with guide grooves and drain holes, anti-leakage members are installed among the profile frames, and the anti-leakage members are U-shaped anti-leakage grooved plates, anti-leakage grooved plates which are in the shape of a Chinese character 'ren' or cross-shaped anti-leakage grooved plates. The frame-embedded photovoltaic power-generating roof bracket is characterized in that a connecting block is welded on the steel frame, connecting holes are arranged in the connecting block, the profile frames are fixed by fasteners through the connecting holes, and the solar battery assemblies and the profile frames are fixed with each other by tapping screws.

The invention discloses a slurry filling device for a tunnel pipe. The slurry filling device comprises a slurry filling pipe of a tunnel and is characterized by further comprising a slurry pressing device and a connection device. The slurry pressing device is composed of a round connection pipe, a fixing member, a sealing ring and a hinge mechanism, wherein the round connection pipe is composed of two semi-round pipes, the sealing ring is arranged in the round connection pipe, one end of the round connection pipe is connected with the slurry filling pipe of the tunnel, the other end of the round connection pipe is connected with the connection device communicated with a slurry filling pump, and the fixing member for fastening the round connection pipe and the hinge mechanism for opening and closing the round connection pipe are connected onto the outer wall of the round connection pipe, and the fixing member and the hinge mechanism are oppositely arranged. The slurry filling device ensures that the slurry cannot be leaked during filling, simultaneously can achieve continuous and intermittent slurry filling, is good in slurry filling reinforcing effect, greatly reduces the cycling time of slurry filling operation, is high in working efficiency, simultaneously shortens the time for slurry filling of surrounding rocks, is easy and convenient to operate, does not need welding operation at site, performs binding reinforcing operation through iron wires manually, is low in labor intensity and easy to process and manufacture, can be utilized fully and repeatedly and saves materials.

The invention discloses an efficient maintenance operation method for equipment code scanning and quick inspection. The method comprises the following steps of establishing detailed files of drawings,parameters, wiring and line numbers of various control devices, a debugging method and the like, generating one-to-one two-dimensional codes from the detailed files of key devices, encrypting the two-dimensional codes, and pasting the established two-dimensional codes on corresponding devices. When the equipment has a fault, the maintenance technicians only need to use a mobile phone to scan thetwo-dimensional code and input the password, the technical key points and the control information of the equipment can be known in detail, the equipment is convenient to maintain, the time is saved, the equipment fault time is shortened, and the equipment operation efficiency is improved.

The invention discloses a solar insulation cup which comprises a cup body, a cup cover, a heating rod and a handle. A thin-film solar cell covers the surface of the cup body and is separated from the surface of the cup body through a vacuum layer. A storage battery is wrapped inside the cup cover, and the outer portion of the cup cover is connected with the heating rod and the handle. The solar insulation cup is simple to use, and is energy saving and environmentally friendly as solar energy is used to heat water and keep water warm.

The invention relates to floor drain series product for eliminating liquid above water proof layer in various building or similar occasions. The invention comprises a stinking-proof tunnel, a stinking-proof cover, a water inlet protection port and a big mouth perforated strainer with movable cover for purifying water. The tunnel water inlet is provided with a non-coiled material waterproof combined brim with special-shaped outer ring which is combined with an upper water proof layer, and a water outlet is provided with an entry guide for guiding water in the pipe and is externally provided with a standard support port, and the tunnel is internally provided with a water seal stinking-proof water storage overflow cabin and a stinking-proof cover with self-cleaning function which is fastened at an overflow pipe orifice part of the water storage overflow cabin, and the upper part of the tunnel is provided with a side water inlet and a water inlet protection orifice with adjustable height, and the big mouth perforated strainer with movable cover for purifying water or the decorated big mouth perforated strainer with movable cover for purifying water is placed on the upper orifice of the water inlet protection orifice for forming a low position direct-burried stinking-proof floor drain water collecting and draining system. According to the invention, the product is a floor drain series product and water collecting and draining system thereof, which not only can save social resource, reduce construction cost, but also can avoid blocking, stinking and leaking problems of ground drainage.

The invention belongs to the technical field of sulfuric acid dilution, and discloses a sulfuric acid dilution system, a control method and application, a concentrated sulfuric acid storage tank is connected with a feeding pump through a pipeline, the feeding pump is connected with a concentrated sulfuric acid high-level tank through a pipeline, and the concentrated sulfuric acid high-level tank is connected with a graphite sulfuric acid dilution cooler through a pipeline; the graphite sulfuric acid dilution cooler is connected with a dilute sulfuric acid storage tank through a pipeline; the lower end of the dilute sulfuric acid storage tank is connected with a circulating pump through a pipeline; the circulating pump is connected with the dilute sulphuric acid cooler through a pipeline; the dilute sulphuric acid cooler is connected with the upper end of the dilute sulphuric acid storage tank through a pipeline; and the upper end of the graphite sulfuric acid dilution cooler is connected with a process water high-level tank through a pipeline; and a softened water inlet is formed in the process water high-level tank. The problems of corrosion and high-temperature scouring caused by direct contact of concentrated sulfuric acid with the inner wall of the graphite connecting pipe are avoided; and meanwhile, concentrated sulfuric acid is bubbled and sprayed out in the mixing chamber through an F4 hose and is mixed with atomized spray water to release dissolution heat. Dilute sulphuric acid is rapidly and uniformly mixed.

The invention discloses a device for cooling an electronic element by utilizing a bionic alveolar heat exchanger. The device is used for heat exchange of the electronic element, and comprises the bionic alveolar heat exchanger and cooling equipment, wherein the bionic alveolar heat exchanger is fixed on the electronic element through a heat conduction fixing piece, is used for absorbing heat generated by the electronic element or a micro-electronic element, and is internally provided with a power core used for providing a refrigerant with flowing power, a loop heat pipe refrigerant channel used for circulation of the refrigerant, and a cavity; the cooling equipment is connected with the cavity through a micro-channel; the refrigerant is arranged in the micro-channel; and the refrigerant isused for transferring the heat to the cooling equipment for heat exchange so as to dissipate heat.

The invention relates to a power supply box comprising a main frame of a hollow structure; an upper cover component and a lower cover component, fixedly connected with the main frame and separately positioned on two sides of the main frame, wherein the upper cover component, the lower cover component and the main frame are encircled to form a sealed cavity; and a pinboard component, arranged in the cavity and comprising a power supply pinboard, a first connector and a first plug connector, wherein both the first connector and the first plug connector are arranged on the power supply pinboard,the first connector and the first plug connector are separately positioned on two opposite sides of the power supply pinboard, and the power supply pinboard component is detachably connected with theupper cover component via the first connector, and detachably connected with the lower cover component via the first plug connector. The power supply inboard is used for replacing the traditional wireconnection, and the upper cover component of the pinboard component is detachably fixed and meanwhile is detachably fixed with the lower cover component, so that the problem that the wire introducedfrom the external plug is time-wasting to dismount during maintenance is solved, and the quick maintenance of the power supply box is achieved.

The invention provides a ground direct-drive screw pump oil extracting device which comprises a base, a load-bearing frame, a drive device and a sealing connection sleeve. The load-bearing frame is installed on the base, the base is provided with a machine frame for fixing the load-bearing frame, the load-bearing frame is provided with a blowout preventer, the blowout preventer is provided with a sealing pipe sleeve, the load-bearing frame is provided with a rotary shaft, the drive device is installed on the machine frame, the output end of the drive device is connected with a speed changing box, the output end of the speed changing box is connected with a driving gear, the rotary shaft is provided with a driven gear matched with the driving gear, a polished rod penetrates through the rotary shaft, a protective cover is arranged on the load-bearing frame, a coded disc shell is arranged above the protective cover, a coded disc is arranged in the coded disc shell, the sealing connection sleeve is installed at the upper end of the rotary shaft, and a square clamp matched with the polished rod is arranged in the sealing connection sleeve. The oil extracting device is simple in structure, convenient to use and install, easy to operate, low in energy consumption, efficient and stable in operation, good in sealing effect, low in manufacturing cost, wide in application range, long in service life, safe and reliable.

The invention provides a novel drinking water heat preservation water bottle which adopts advanced fluid mechanics structural design, adopts channel type water outlet controlled by a double-closed valve core structure and is provided with a vent hole for opening / closing in a linkage manner. The novel drinking water heat preservation water bottle is provided with a water inlet and a water outlet intwo directions of a bottle body, which do not interfere with each other, so that it is ensured that air leakage and temperature loss do not occur in the bottle during standing, and the heat preservation time is prolonged. A side water outlet structure of the water bottle completely eradicates the danger of surging, ensures no water leakage when the water bottle is not in use, and ensures smooth water outlet when the water bottle is in use; a flying-wing-shaped ergonomic key is operated in a one-key mode; temperature / pressure gauges are arranged for displaying the temperature and the air pressure in the bottle; a water quality detection pen is arranged to provide data for drinking water health; lighting light is also provided in dark; the vent hole with the pressure relief function can provide a pressure relief guarantee for overpressure in the bottle for a user when the user loads gas-containing beverage; therefore the water bottle can bring brand-new experience with strong heat preservation capacity, safety and sanitation and an advanced structure to the user.

The invention relates to a copper conductor welding machine and a welding technology thereof. A welding plier and an electric control system are included, and the copper conductor welding machine andthe welding technology are characterized in that the welding plier comprises a handle part, a jacket, a clamping part, an insulating sleeve, a carbon rod clamp and a sliding ring; the clamping part comprises front and back ratchet wheels, movable and fixed pressing rods, a pawl hinged to the side face of the movable pressing rod and matched with the ratchet wheels, a torsional spring assembly arranged on the side face of the movable pressing rod and used for driving the pawl and a barrel-shaped connector connected with the front end face of the front ratchet wheel; and the handle part comprises an insulating shell, an electric brush arranged in the insulating shell and matched with the sliding ring and an electric conduction connecting rod connected with the lower end face of the electricbrush, a cable is inserted into the bottom of the insulating shell, the end of the cable is connected with the electric conduction connecting rod, and the other end of the cable is connected with a direct-current output circuit of the electric control system. The copper conductor welding machine and the welding technology fundamentally solve the problems about cold solder and dry joint of an existing welding device, scaling powder does not need to be used, the welding effect is good, the mechanical strength is high, arc light and spark leakage can be avoided during welding, and the operation safety is obviously improved.

The invention discloses a low-pressure and low-noise steam drain water expander. The low-pressure and low-noise steam drain water expander comprises a barrel, wherein a steam exhausting pipe is arranged at the upper part of the barrel and a water discharging pipe is arranged at the bottom of the barrel; a water draining inlet pipe and a temperature reducing water pipe are arranged at the lower part of the barrel; and the temperature reducing water pipe and water spraying pipes are arranged between a steam exhausting opening and a drain water inlet pipe in the barrel. A filter screen is arranged at the inlet of the steam exhausting pipe; the temperature reducing water pipe is arranged along the axial direction of the barrel and is connected with the water spraying pipes; the plurality of layers of water spraying pipes are arranged in a staggered manner; narrow slits are formed in the two sides and the directions of the narrow slits are vertical to the axis of the barrel. According to the low-pressure and low-noise steam drain water expander, temperature reducing water can be in sufficient contact with steam generated by drain water expansion, and the steam temperature is rapidly reduced, so that the steam exhausting volume flow of the expander is reduced, and the working pressure and the steam exhausting noises are relatively low; meanwhile, more steam drained water is recycled. The low-pressure and low-noise steam drain water expander has a simple structure, low machining and manufacturing cost and good energy-saving and noise-reduction effect.