38results about How to "Improve water pressure resistance" patented technology

A waterproof container for accommodating a portable electronic device mainly includes a resilient frame, a first housing, a second housing and a plurality of screw members. The resilient frame, mounted around a circumference of the portable electronic device, has a surface to be combined with the first housing and a bottom surface to be combined with the second housing so that a space for accommodating the portable electronic device is formed. Using a frame structure constituted by an integrally formed waterproof resilient material can effectively work with the use of the anti-collision and circumferential function keys of the portable electronic device to enhance the convenience in use and further to possess the high anti-water-pressure capability, integrate and simplify the manufacturing processes and decrease the cost.

The invention proposes a connection structure and connection method of hydraulic concrete member expansion joint waterstop, which includes a protective layer and a sealing filling layer, and the sealing filling layer is filled in the expansion joint where the waterstop is damaged. A layer is coated on the outer side of the sealing filling layer and the damaged end of the waterstop, and is combined with the end. The sealing filling layer preferably closes the seam of the damaged part, and can provide the required supporting function for the protective layer. The protective layer can be directly formed by coating a flexible membrane material on site, so as to be closely combined with the end of the waterstop. It is better to apply activator and adhesive between the protective layer and the waterstop. The invention can solve the connection problem of the damaged part of the waterstop in the expansion joint of the hydraulic concrete member, and is simple and easy compared with the conventional process of chiseling and replacing the waterstop, and the performance of the waterstop is intact after the connection.

The invention discloses an automatic cleaning system for a video capture window of an underwater monitoring device. The automatic cleaning system comprises a disc-shaped base, a video capture module and a transparent window cover. The outer surface of the window cover is a rotation curved surface which is formed in the manner that a busbar with one end on the center axis rotates around the center axis by a circle. The center axis of the window cover is coaxial with the center axis of the base. A cleaning scraper is arranged on the outer wall of the window cover in a striding manner. The inner edge of the cleaning scraper is attached to the outer surface of the window cover in a matched manner. The cleaning scraper is hinged to the window cover and can rotate around a hinge shaft. The part, between the cleaning scraper and the window cover, of the hinge shaft is coaxial with the center axis of the window cover. The cleaning scraper is driven by external force to rotate around the hinge shaft.

The invention relates to a preparation method of an ultra-thin and ultra-transparent microporous membrane. The ultra-thin and ultra-transparent microporous membrane is a membrane containing micropores, the thickness of the membrane is below 5 μm, and the pore size of the micropores is below 5 μm; the preparation method is as follows: : Use a micro-nano foaming machine to foam the water-based foam to obtain bubbles, and then carry out micro-concave high-precision coating to obtain an ultra-thin and ultra-transparent microporous film; the water-based foam is mainly composed of water-based glue, water-based foam stabilizer, It is composed of silicone resin polyether emulsion water-based foam stabilizer and water; the foaming control parameters of the micro-nano foaming machine include: the specific gravity of the bubbles is 350~700 g / L, the working speed of the stirring head is 250~400 rpm, and the output of the pump 100~500L / hour; the diameter of the bubbles is less than 5μm; the thickness of the coating is less than 5μm during micro-concave high-precision coating, and at the same time greater than or equal to the diameter of the bubbles. The method of the invention is simple, the thickness of the prepared product is small, and the air permeability and anti-drilling down property are good, which effectively fills the blank of the prior art.

The invention relates to a faucet, in particular to the faucet filled with an anti-impact high-dense elastomer material and a preparation method of the faucet. The faucet comprises an acrylonitrile butadiene styrene (ABS) plastic shell and mating parts, wherein the mating parts comprise a valve core, a handle, a water outlet net, a seal ring, a fastening screw and the like. The method comprises the following steps of: combining and connecting water channels of the faucet according to a waterway requirement of the faucet; putting the water channels into a mould of a shell of the faucet and fixing the water channels; fusing a high-dense elastomer which is mixed with an inorganic filling material by an extruder, an injection moulding machine, a kneading machine and an open mill, and filling the high-dense elastomer into the mould of the shell of the faucet; cooling the high-dense elastomer in the mould until the high-dense elastomer is formed, taking the high-dense elastomer out of the mould, and carrying out injection moulding on the high-dense elastomer to form a plastic shell of the faucet; and carrying out surface treatment on the shell, installing the filled faucet into the plastic shell of the faucet, and assembling the prepared faucet mating parts which are produced by the conventional process and comprise the valve core, the handle, the water outlet net, the seal ring, the fastening screw and the like into the faucet filled with the anti-impact high-dense elastomer material according to the conventional assembling mode.

The invention relates to a uniform-section upright main water passage alloy belt water-cooled resistor, which mainly comprises a corrugated alloy belt resistor core, a uniform-section upright main water passage main board, two uniform-section upright main water passage side boards and two metal electrodes, wherein the uniform-section upright main water passage main board and the two uniform-section upright main water passage side boards are made of PVDF (polyvinylidene fluoride) fluoroplastic. Both sides of the uniform-section upright main water passage main board are provided with symmetrical open water channels, which consist of upright main water channels and curved water channels connected with the upright main water channels, the water channels on both sides are connected to form a serial water passage or parallel water passages according to need, and the bottom is provided with a water inlet and a water outlet; one side of each uniform-section upright main water passage side board is provided with an open water channel which corresponds to the open water channel on the uniform-section upright main water passage main board; the two electrodes are enchased on the uniform-section upright main water passage main board, one end of each electrode is extended out of the open water channel to serve as an internal electrode, and the other end of each electrode is extended out of the side or top of the main board to serve as an external electrode; and the corrugated alloy belt is wound in the open water channels according to the trend of the water passage, both ends of the corrugated alloy belt are respectively soldered on the two internal electrodes, and thereby the corrugated alloy belt resistor core is formed.