37results about How to "Guaranteed watertight" patented technology

The invention provides a high temperature fluid pipeline sealed heat insulation cabin penetrating device and an installation method thereof. The high temperature fluid pipeline sealed heat insulation cabin penetrating device comprises a high temperature fluid pipe (6), a stuffing box (1) and a stuffing box pressing box (2), the high temperature fluid pipe (6) is sleeved in the stuffing box (1) and penetrates through an inner hole (10) on the stuffing box pressing cover (2), a uniform gap is reserved between the high temperature fluid pipe (6) and the hole wall of the inner hole (10), the stuffing box (1) penetrates through a deck (7) or a cabin wall (8) to be welded to the deck (7) or the cabin wall (8), muddy fillers (3) are filled in the remaining space of the inner portion of the stuffing box (1), graphite packing (4) is filled at two ends of the stuffing box (1), and the graphite packing (4) extends out of the end face of the stuffing box (1) to be tightly contacted with the end face of the stuffing box pressing cover (2). The installation method includes the following steps: rust removal and painting of the stuffing box (1) and the stuffing box pressing cover (2), through installation of the stuffing box (1), through installation of the high temperature fluid pipe (6), filling of sealing fillers, inspection and heat insulation wrapping.

The invention provides a variable ship length type wave energy underwater vehicle. The variable ship length type wave energy underwater vehicle comprises a wave energy underwater vehicle body, whereinthe wave energy underwater vehicle body comprises a ship body, a hydrofoil which is mounted at the lower part of the ship body through a support, and a rudder which is mounted at the tail part of theship body; the ship body comprises three parts, namely, a head section, an intermediate section and a tail section; and the intermediate section is a telescoping section. According to the variable ship length type wave energy underwater vehicle, the length of a ship in the sea with different wave conditions can be controlled; compared with a fixed ship length type wave energy underwater vehicle,the variable ship length type wave energy underwater vehicle has the advantages that the ship length can be properly changed so as to improve the wave energy utilization efficiency of the wave energyunderwater vehicle; in case of a long wave height condition, the ship length can be increased in order to increase the longitudinal swinging and heaving range of the ship, and as a result, the propelling performance of the underwater vehicle can be improved; in case of a short wave height condition, the ship length can be decreased to reduce the rotating inertia, thus the ship body moving range isexpanded, and as a result, the wave energy can be effectively utilized to propel.

The invention discloses water sample collecting equipment for simultaneously collecting multiple layers of water samples, belonging to the technical field of sampling equipment. According to the technical key point, the water sample collecting equipment comprises mounting base plate, wherein a plurality of connecting columns are distributed at the bottom of the mounting base plate, a support column is connected to the center of the upper end surface of the mounting base plate, a mounting column is arranged at the near end part of the upper end of the support column, an annular sampling seat isarranged along the circumferential direction of the outer wall of the mounting column, and multiple groups of guide rods are connected between the bottom of the annular sampling seat and the mountingbase plate along the vertical direction; each group of the guide rods is sleeved with a gravity diving frame, sampling bottles are arranged in the gravity diving frames, sealing plugs are arranged atbottlenecks of the sampling bottles, and starting-stopping mechanisms matched with the sealing plugs are arranged at the tops of the gravity diving frames; and each gravity diving frame is connectedwith a lifting driving mechanism. The invention aims at providing the portable water sample collecting equipment for sampling water quality, and the portable water sample collecting equipment is compact in structure, convenient to use and good in effect and can be used for simultaneously collecting multiple layers of the water samples.

Provided is a waterproof structure, wherein space within a case can be water-proofed for sure, and damages to connectors can be avoided. In a structure, wherein a connector (1) fixed to a mounting hole (11a) of a metal case (11) of a motor mounted onto an automobile, and a connector (2) fixed to a mounting hole (12a) of a metal case (12) of an inverter are intermeshed, a waterproof structure (100) that waterproofs the space within each of the cases (11, 12) is provided with: a circular first packing (8a) installed at an overlapping section (35) of the case (11) and the connector (1), and between faces of the case (11) and the connector (1) that intersect with the intermeshing direction (Y), and which surrounds the mounting hole (11a) and keeps the gap between the case (11) and the overlapping section (35) watertight; and a circular second packing (8b) installed between the faces of the case (12) and the connector (2) that are parallel to the intermeshing direction (Y), and on the outer circumference face of a mounting-hole inserting-through section (62) of the connector (2), and which keeps the gap between the mounting-hole inserting-through section (62) and the inner circumference of the mounting-hole (12a) watertight.

The invention relates to a bearing head of an underwater sonar electronic system for connecting a trailing cable. The trailing cable comprises the following parts from inside out: optical fibers and a cable (1), a pressure-proof sheath (3), a Kevlar layer (4) and an outer sheath (5), wherein the trailing cable is filled with oil; the bearing head comprises an upper tapered cylinder (7) and a lower oil-filled sealed cabin (10), and the tapered cylinder (7) is used for locking the Kevlar layer (4) of the trailing cable; the oil-filled sealed cabin (10) is communicated with an oil charge oil circuit (2) in the trailing cable, the optical fibers and the cable (1) go out from the oil-filled sealed cabin (10) and are welded in a watertight plug-in component on the bearing head shell (16); the bearing head shell (16) is provided with an oil nozzle (12), and the oil nozzle (12) is communicated with the oil of a underwater sonar electronic device through a pressure-proof rubber tube (14), thus the communication of the oil charge oil way (2) and external devices in the trailing cable with mixing oil charge and photoelectricity is realized.

The invention relates to a water sealing connector which is used for connecting multifunctional underground towlines. The water sealing connector is characterized in that the connector comprises a cylindrical conversion socket with the axes center having through holes, a sealing disc, a sealing through pipe which passes through the sealing disc, a nut and an O-shaped ring which fixedly seal the multifunctional underground towlines at the center of the sealing disc; the sealing disc is hermetically fixed with the conversion socket by the bolt and the large O-shaped ring; two discs on the sealing through pipe are hermetically welded with two side surfaces of the conversion socket; the slender steel pipe at the end of the sealing through pipe is connected with a water pipe which is arranged at the center of the multifunctional towline. The water sealing connector can ensure the water sealing of the transmission cables and reliable and convenient wire connection performance in the towlines, does not affect water transmission performance of the multifunctional underground towlines, has comprehensive function, compact structure and good water sealing performance, is convenient for installation and operation, has low cost, is simple and practical, can work under the water for a long time, and can bear the water pressure more than 50KG.

The invention discloses a floatable hatch cover of an independent cargo cabin. The cargo cabin adopts a double-layer structure of an independent cargo cabin panel and a delivery vehicle structure panel, and a gap exists between the independent cargo cabin panel and the delivery vehicle structure panel; the hatch cover comprises a cargo cabin cover plate and a small hatch cover arranged on the cargo cabin cover plate, the cargo cabin cover plate is connected with the independent cargo cabin panel through an inner hatch coaming, and the edge of the cargo cabin cover plate is connected through a rubber sealing ring with the inner hatch coaming connected onto the delivery vehicle structure panel. The hatch cover has the advantages as follows: by the aid of the hatch cover, floating connection of the independent cargo cabin and a delivery vehicle structure can be realized, and the watertightness of the external structure of a delivery vehicle can also be guaranteed.

The invention discloses a high leak tightness sash window, consisting of a window frame, window sashes, guide sliding blocks, pulley wheels, a slideway and a sealing device, wherein, an upper arm and a lower arm of the window frame are provided with vertical concave chutes, a sealing frame is arranged on the periphery of a protruding side wall in the inner side of the window frame, each window sash is respectively slidebly arranged between the concave chutes of the upper arm and the lower arm of the window frame by the upper and lower guide sliding blocks and the pulley wheels, a transverse concave chute is respectively arranged between the vertical concave chutes corresponding to each guide sliding block and each pulley wheel of the window sash close to a left arm and a right arm of the window frame and the internal side protruding side arm of the upper arm and the lower arm of the window frame; each window sash can slide left and right and lengthways and can be closed widthways to fit with sealing strips on surrounding sealing frames to realize high leak tightness. The sash window has the advantages of convenient use of the sash window and high leak tightness of a casement window, overcomes the sealing dead angle and fulfills the purpose of saving energy and protecting environment.

A method for fine arrangement of wat curtain holes in underground reservoir is provide. The method of the invention comprises the following steps of: determining an initial water curtain hole spacing;Statistics of fracture parameters in water curtain hole; Calculating the optimal distance between the water curtain holes; Fine arrangement of water curtain holes at different positions. The invention can determine the optimal spacing of the communication between the water curtain holes at different positions of the water curtain system, and carry out drill hole densification treatment on the water curtain holes that do not meet the requirements of the initial spacing, so as to ensure that the communication between the water curtain holes reaches the design requirements. The water curtain hole of the invention can be finely arranged at different positions, has strong adaptability, and can ensure the connectivity and water sealing of the whole water curtain system through the fine arrangement.

The invention discloses a full-aluminum alloy anti-theft entrance door. The door comprises a door frame, a door leaf, and a hinge connecting the door frame with the door leaf; The door is characterized in that the door leaf comprises a door leaf upper transverse material, a door leaf lower transverse material, a plurality of door leaf vertical materials and a pull rod, two ends of each door leaf vertical material are fixedly connected with the door leaf upper transverse material and the door leaf lower transverse material correspondingly, and the pull rod penetrates through the door leaf vertical materials and is fixedly connected with the door leaf vertical materials; and each door leaf vertical material comprises inner and outer profiles, and the two profiles of each door leaf vertical material are connected and isolated through a heat insulation strip. The door leaf is formed by assembling the door leaf upper transverse material, the door leaf lower transverse material, the plurality of door leaf vertical materials and the pull rod of aluminum alloy profiles, so that machining is convenient, production precision is high, profiles are connected through assembling without welding,machining is convenient, and mounting and transporting are convenient; and in addition, each door leaf vertical material comprises inner and outer profiles, and the two profiles of each door leaf vertical material are connected and isolated through the heat insulation strip, so that the heat insulation and sealing performance of the whole door leaf is very excellent.

The invention discloses an underwater robot laying device which comprises a sealing cylinder, a linear motor, a release shaft, a fixing shaft, a left clamping hook and a right clamping hook; the linear motor is mounted in the sealing cylinder; a linear motor telescopic rod is in clearance fit with one end of the release shaft; the upper end of the left clamping hook and the upper end of the rightclamping hook are vertically staggered, meanwhile, the left clamping hook and the right clamping hook are rotationally connected to the sealing cylinder through the fixing shaft, the other end of therelease shaft is in sliding fit with butt joint holes in the upper portions of the left clamping hook and the right clamping hook to limit rotation of the left clamping hook and the right clamping hook, and at the moment, the left clamping hook and the right clamping hook jointly clamp external robot lugs. During laying, the linear motor telescopic rod is used for driving the release shaft to moveupwards in the axial direction, the release shaft is separated from the left clamping hook and the right clamping hook, the left clamping hook and the right clamping hook rotate around the fixing shaft under the action of self gravity and then are opened, the external robot lifting lugs are released, and laying is completed. The device is simple in structure, convenient to install and high in reliability.

A mounting grommet (1) comprises an outer grommet (6) and an inner grommet (7) inserted into the outer grommet and supported by the outer grommet, and supports a part provided with a mounting member on a vehicle main body (2). The outer grommet has a clearance in a radial direction with a mounting hole (5) in the vehicle main body, a first stopper (12) stopped by the outer edge of one side of the mounting hole on one end thereof, and an elastically deformable first latching piece (13) latched with the outer edge of the other side of the mounting hole. The inner grommet has a clearance in the radial direction with the outer grommet, a second stopper (20) which abuts with the first stopper, and an elastically deformable second latching piece (21) latched with the other end of the outer grommet. The outer grommet and the inner grommet are both movable in their radial directions.

The invention relates to the technical field of degradable material manufacturing, in particular to an easily-degradable starch-based material. The easily-degradable starch-based material comprises following raw materials: modified starch, modified lignin, carbon quantum dot composite titanium dioxide, polyethylene glycol and glycerol; wherein the modified starch is obtained by modifying corn starch with sodium alginate, sodium alginate accounts for 20 to 32% of the weight of the corn starch, the weight-average molecular weight (Mw) of sodium alginate is less than or equal to 300,000, and thepolydispersity index (PI) of sodium alginate is 1.2-2.0. The material is prepared from agricultural products, the cost is reduced, the use amount of non-degradable materials is reduced, the environmental friendliness and the sustainability of the material are improved, the material has advantages of excellent tensile strength, excellent elongation at break, excellent impact strength and excellentwater vapor barrier property, and a finished product is water impermeable, thermal-insulating and moisture-proof, and can be rapidly degraded on the ground and underground.

A water circulation food cooler, comprising at least a cooling bowl and a water supply pipeline, the cooling bowl is a hollow structure, divided into three layers, an inner layer, a partition and an outer layer, the partition separates the hollow part of the cooling bowl into two a cavity, and the two cavities are connected to each other at the top of the interlayer; the bottom of the interlayer has a hole, and the orifice is the water inlet, and the bottom outlet of the outer cavity of the hollow part of the cooling bowl is the water outlet, and the cooling bowl The water inlet, inner cavity, outer cavity and water outlet constitute the water circulation channel of the cooling bowl; the water supply pipeline is arranged below the bottom of the cooling bowl, and the water supply pipeline has a water supply pipeline and a return water pipeline, and the water supply pipeline The water supply pipeline is connected with the water inlet of the cooling bowl, and the return water pipeline is connected with the water outlet of the cooling bowl. The water circulation food cooler of the present invention has a special cooling bowl connected to the water supply pipeline, and the circulating water enters the inner cavity of the cooling bowl to quickly take away the heat of the food. It is safe and hygienic, convenient and comfortable to use, and is suitable for mass use.

The invention discloses a water seepage prevention intermittent ointment filling process, which comprises: S1, controlling an ointment pump to operate through a frequency converter; S2, smearing the ointment on a metal belt through an ointment needle by the ointment pump; S3, scraping off the redundant ointment from the smeared metal belt through a scraping plate; and S4, concentrating the scrapedointment in an oil storage box. According to the invention, a layer of water-blocking cable paste is coated on the surface of a steel belt through simple cable paste coating equipment, so that the steel belt is distorted and formed after passing through a sizing die, and the sprayed water-blocking cable paste is filled in the lap joint position so as to achieve the effect of water seepage prevention, effectively ensure that the metal lap joint position and the cable core are free of water seepage, eliminate the operation of extruding a finished product and coating ointment on the whole cablecore, effectively control the consumption of raw materials and avoid quality accidents caused by resistance to the cable core; and the cable paste coating production process is simple and easy to operate.

A waterproof structure, which is for one connector fixed to a mounting hole of an automotive motor's metallic case and another connector fixed to a mounting hole of an automotive inverter's metallic case and connected to the one connector, comprises ring-shaped first and second packings. The first packing resides between the one case's surface and the one connector's surface that are orthogonal to a fitting direction of the connectors such that the one case's mounting hole is surrounded thereby to provide waterproof interface between the one case and the one connector. The second packing resides between the other case's surface and the other connector's surface that are parallel to the fitting direction. The second packing extends on an outer circumferential surface of the other connector to provide waterproof interface between an inner circumferential surface of the other case's mounting hole and the other connector's outer circumferential surface.

The invention relates to a high-pressure-resistant and abrasion-resistant quick-connected solid-wall winding pipe. Oval pressure-resistant structures are evenly arranged on the outer wall of the winding pipe, a rib abrasion-resistant structure is arranged on the inner wall of the winding pipe, and bell and spigot structures are arranged on the two sides of the winding pipe. The oval pressure-resistant structures can evenly distribute external force to various parts after being pressed, the overall pressure degree is reduced, and the effect of extending the service life of the pipe is achieved.Meanwhile, ribbed ribs are arranged on the inner wall of the winding pipe, and the inner wall of the pipe can be prevented from being impacted by impurities; and the energy generated when the impurities hit the wall can be absorbed, and therefore a buffering effect is achieved. In addition, according to the solid-wall winding pipe, built-in horse buckles and threads are engaged, so that pipe falling can be prevented, and it can be ensured that water is not leaked from a connector of the winding pipe. A guide-swiveling drainage strip is arranged at a water outlet, and therefore the flow speedof water flow in the pipe can be reduced, the water flow direction generates a rotating effect, and the pressure on the inner wall of the pipe is reduced.

The invention relates to a water sealing connector which is used for connecting multifunctional underground towlines. The water sealing connector is characterized in that the connector comprises a cylindrical conversion socket with the axes center having through holes, a sealing disc, a sealing through pipe which passes through the sealing disc, a nut and an O-shaped ring which fixedly seal the multifunctional underground towlines at the center of the sealing disc; the sealing disc is hermetically fixed with the conversion socket by the bolt and the large O-shaped ring; two discs on the sealing through pipe are hermetically welded with two side surfaces of the conversion socket; the slender steel pipe at the end of the sealing through pipe is connected with a water pipe which is arranged at the center of the multifunctional towline. The water sealing connector can ensure the water sealing of the transmission cables and reliable and convenient wire connection performance in the towlines, does not affect water transmission performance of the multifunctional underground towlines, has comprehensive function, compact structure and good water sealing performance, is convenient for installation and operation, has low cost, is simple and practical, can work under the water for a long time, and can bear the water pressure more than 50KG.

The invention discloses a water-circulating food cooler. The food cooler at least comprises a cooling bowl and a water supply pipeline; the cooling bowl is of a hollow structure and divided into threelayers of an inner layer, an interlayer and an outer layer; the interlayer partitions the hollow part of the cooling bowl into an inner cavity and an outer cavity, and two cavities are in interpenetration at the top of the interlayer; a hole is formed in the bottom of the interlayer, and the hole opening is a water inlet, and an outer let at the bottom of the outer cavity of the hollow part of the cooling bowl is a water outlet, the water inlet, the inner cavity, the outer cavity and the water outlet of the cooling bowl form a water-circulating channel of the cooling bowl; the water supply pipeline is arranged below the bottom of the cooling bowl and provided with a water feeding pipeline and a water returning pipeline, the water feeding pipeline of the water supply pipeline is butted joint with the water inlet of the cooling bowl, and the water returning pipeline is butted joint with the water outlet of the cooling bowl. Through the water-circulating food cooler disclosed by the invention, a dedicated cooling bowl is butted joint with the water supply pipeline, the circulating water enters the inner cavity of the cooling bowl to quickly take away the heat of the food, so that thecooler is safe and sanitary, convenient and comfortable to use, and suitable for use in large volumes.

The invention discloses a ship bottom valve. The ship bottom valve comprises a handle (1), a valve body (2) and a gate (3); a wave wheel (5) is arranged on an inner cavity below sealing surfaces (4) of the valve body (2). The lower end of a shaft of the wave wheel (5) is embedded in the bottom wall of the inner cavity of the valve body (2). Due to the fact that the wave wheel (5) is arranged on the inner cavity below the sealing surface (4) of the valve body (2), when the gate (3) moves upwards and the valve is in the opening process, horizontal running water pushes the wave wheel (5) to rotate, and seawater in inner cavity of the valve body (2) is stirred by the wave wheel (5), so that implantation of shellfish on all sealing surfaces (4) is difficult, and it is guaranteed that valve closing is smooth and water is not leaked.

The invention discloses a high-precision water quality sampling equipment, belonging to the technical field of sampling equipment. A mounting column is connected to the bottom of the weight mounting seat, and a horizontal adjusting sliding seat is sleeved on the mounting column; The rods are evenly distributed along the circumference of the center point of the sampling base; a gravity submersible frame is movably set on the guide rod, a sampling bottle is arranged in the gravity submersible frame, a sealing plug is arranged at the bottle mouth of the sampling bottle, and a gravity submersible frame is arranged on the guide rod. The top is provided with an opening and closing mechanism matched with a sealing plug; the gravity submersible frame is connected with a lifting drive mechanism; the invention aims to provide a high-precision water quality sampling device with compact structure, convenient use and good effect; sampling.

The invention discloses water sample collecting equipment for simultaneously collecting multiple layers of water samples, belonging to the technical field of sampling equipment. According to the technical key point, the water sample collecting equipment comprises mounting base plate, wherein a plurality of connecting columns are distributed at the bottom of the mounting base plate, a support column is connected to the center of the upper end surface of the mounting base plate, a mounting column is arranged at the near end part of the upper end of the support column, an annular sampling seat isarranged along the circumferential direction of the outer wall of the mounting column, and multiple groups of guide rods are connected between the bottom of the annular sampling seat and the mountingbase plate along the vertical direction; each group of the guide rods is sleeved with a gravity diving frame, sampling bottles are arranged in the gravity diving frames, sealing plugs are arranged atbottlenecks of the sampling bottles, and starting-stopping mechanisms matched with the sealing plugs are arranged at the tops of the gravity diving frames; and each gravity diving frame is connectedwith a lifting driving mechanism. The invention aims at providing the portable water sample collecting equipment for sampling water quality, and the portable water sample collecting equipment is compact in structure, convenient to use and good in effect and can be used for simultaneously collecting multiple layers of the water samples.