86results about How to "Improve waterproof reliability" patented technology

The invention discloses an anionic water-based non-curing rubber asphalt waterproof coating and a preparation method thereof. The preparation method comprises the steps that 85-95 parts by mass of anionic rubber modified asphalt emulsion, 2-5 parts by mass of anionic SBR latex, 4-7 parts by mass of anionic neoprene latex, 0.1-1 part by mass of hydrophobing agent and 0.5-2.5 parts by mass of permeability-reducing agent are stirred and mixed to be uniform to obtain a component A; inorganic salt is dissolved in water, an inorganic salt solution with the concentration being 10% to 30% is prepared, and a component B is obtained; the component A and the component B are sprayed and mixed through a spraying gun according to the mass ratio being (5-15):1, and the anionic water-based non-curing rubber asphalt waterproof coating is obtained, wherein the anionic rubber modified asphalt emulsion is prepared by emulsifying matrix asphalt, a tackifier, rubber elastomers, an anionic emulsifier, a stabilizer, a PH modifier and water through a colloid mill. The product is stable in storage, environmentally friendly, free of pollution, good in non-curing effect, high in waterproof performance and simple in process.

A foldable tonneau cover is disclosed and has two frame sections and at least one hidden-type hinge. Two frame members of two adjacent frame sections are correspondingly formed with two embedded holes. The hidden-type hinge is pivotally connected between the adjacent frame members. When the frame sections are horizontally extended relative to each other, the hidden-type hinge is substantially received in the embedded holes. When the frame sections are rotated or folded relative to each other, the hidden-type hinge is partially exposed out of the embedded holes. Thus, the occupied space of the hidden-type hinge and the gap between the adjacent frame sections can be minimized. The waterproof flexible strip can be continuously extended along the entire length of the two adjacent frame members without being interfered with by the hidden-type hinge substantially hidden within frame members, so as to enhance the waterproof reliability thereof.

A foldable tonneau cover is disclosed and has two frame sections and at least one hidden-type hinge. Two frame members of two adjacent frame sections are correspondingly formed with two embedded holes. The hidden-type hinge is pivotally connected between the adjacent frame members. When the frame sections are horizontally extended relative to each other, the hidden-type hinge is substantially received in the embedded holes. When the frame sections are rotated or folded relative to each other, the hidden-type hinge is partially exposed out of the embedded holes. Thus, the occupied space of the hidden-type hinge and the gap between the adjacent frame sections can be minimized. The waterproof flexible strip can be continuously extended along the entire length of the two adjacent frame members without being interfered with by the hidden-type hinge substantially hidden within frame members, so as to enhance the waterproof reliability thereof.

The invention discloses a waterproof method for a precast pile head. The method comprises the following steps of: sheathing a pile head water stopper into the pile head; opening the inner ring of the pile head water stopper, injecting epoxy resin adhesive into the inner ring, sticking one wing of the pile head water stopper to the outer wall of the pile head, and sticking the other wing of the pile head water stopper to the pad layer of a bottom plate; and spreading a bottom plate waterproof coiled material on the pad layer of the bottom plate, and welding or sticking the other wing of the pile head water stopper to the bottom plate waterproof coiled material. In the waterproof method, one wing of the pile head water stopper is stuck to the outer wall of the pile head steel pipe, the other wing of the pile head water stopper is stuck to the pad layer of the pile head, and the other wing of the pile head water stopper is welded or stuck to the bottom plate waterproof coiled material spread on the pad layer, so that a waterproof layer of the pile head and the bottom plate waterproof coiled material are seamlessly connected, the underground water is prevented from entering the surface of a basement bottom plate through a construction seam between the bottom plate and the outer wall of the pile head, and the waterproof reliability is improved.

The invention provides a basement bottom plate having an advanced-waterstop post-cast strip structure. The basement bottom plate comprises various bases and various corresponding post-cast strips connected among the bases. Each post-cast strip comprises a concrete backing layer, a waterproof layer, a waterproof protective layer, an advanced-waterstop strip and a post-cast strip, wherein the advanced-waterstop strip comprises cast-in-situ concrete, a concrete cushion block, a lower filling component, a lower left reinforcement frame, a lower right reinforcement frame, a waterstop component, an upper filling component, an upper left reinforcement frame and an upper right reinforcement frame, the post-cast strip comprises main reinforcement, a reinforcement net, a steel plate net, a fine-mesh steel wire net, advanced-cast concrete and post-cast concrete, the waterstop component comprises a rubber waterstop belt, a flat iron sheet and fastening bolts, and each filling component comprises a filling plate, a formwork and a plastic cushion block. The advanced-waterstop post-cast strip structure overcomes defects that the rubber waterstop of the existing advanced-waterstop post-cast strip is easy to deviate and crack, the filing materials thereof are easy to deform and the like, and accordingly can prevent the basement bottom plate from water leakage and seepage.

The invention discloses a waterproof method for prefabricated reinforced concrete box culvert interfaces and an interface water stopper. The waterproof method comprises the following steps of: pre-forming a first groove at a predetermined position far from a first box culvert interface, and pre-forming a second groove at a predetermined position far from a second box culvert interface; injecting epoxy resin adhesive into the first groove and the second groove respectively; and plugging two wings of the interface water stopper into the first groove and the second groove respectively, and sticking the two wings of the interface water stopper in the first groove and the second groove after the epoxy resin adhesive is solidified, wherein the two wings of the interface water stopper are provided with an anchoring part respectively, and the transverse size of the section of the anchoring part is greater than that of the middle section of the interface water stopper. According to the waterproof method for the box culvert interfaces, the two wings of the interface water stopper are stuck into the grooves of the box culvert interfaces to finish sticking, and the interface water stopper is adopted for preventing water; and compared with a conventional O-shaped rubber ring waterproof method, the method has the advantages of high waterproof reliability and long service life.

The invention discloses a color-adjusting spraying rapid-hardening liquid rubber waterproof material. The color-adjusting spraying rapid-hardening liquid rubber waterproof material comprises liquid modified rubber and a curing agent, wherein the liquid modified rubber comprises latex, a viscosity increasing filler, cassava starch modified with a coupling agent, an auto-vulcanization bag, emulsifying rosin, an inorganic filler and color paste in parts by weight; and the curing agent is an anhydrous calcium chloride solution. The color-adjusting spraying rapid-hardening liquid rubber waterproof material has the advantages that a coating-type waterproof structure is formed on a waterproof base layer in a liquid spraying manner, the waterproof reliability is improved, connecting overlaid seams do not exist by one-step spraying, the color-adjusting spraying rapid-hardening liquid rubber waterproof material is similar to a conventional spraying rapid-hardening asphalt waterproof material, and as a waterproof membrane is semi-transparent, the color is easy to adjust; production equipment is simple, and investment is small; a waterproof material emulsion is stable and difficult to layer and separate; the elongation rebound rate which is less than or equal to 5% is beneficial to the creep resistance of the waterproof layer; and the tensile strength of a waterproof adhesive film reaches 1.8Mpa, which is twice as much as the previous strength; and the color-adjusting spraying rapid-hardening liquid rubber waterproof material has good adhesive force being higher than or equal to 0.3Mpa.

The invention relates to thermoplastic macromolecule waterproof coatings, in particular relates to a thermoplastic macromolecule waterproof coating capable of being subjected to microwave heating and a preparation method thereof. The macromolecule waterproof coating capable of being subjected to microwave heating is prepared by shearing at high temperature and stirring the following components in percentage by weight: 10-50 percent of elastic thermoplastic polymer, 20-60 percent of asphalt, 5-20 percent of diluting agent, proper amount of compatilizer and 6-30 percent of absorption microwave materials. The absorption microwave materials comprise 0.5-5 percent of conducting polymer and 5-25 percent of waste vulcanized rubber powder. The macromolecule waterproof coating can be formed by the first time, so that the working period is greatly shortened, a sealing basic layer is effectively solved, the tension fracture of a waterproof layer caused by cracking of the basic layer is overcome, and the waterproofing reliability is improved; and meanwhile, the macromolecule waterproof coating can be used for multiple purposes to fully play a role in the advantages and the characteristics of respective materials, so that the process is simple and convenient, the macromolecule waterproof coating can be quickly constructed, the maintenance is avoided, and the working period is short.

The invention relates to a key waterproof structure. The key waterproof structure comprises a shell, a key switch, a soft material piece and a key, wherein the key switch, the soft material piece and the key are sequentially arranged on the shell, the key and the shell are movably assembled, the soft material piece sleeves the key and presses the key and the soft material piece is in synchronous linkage with the key, and the soft material piece further abuts against the key switch to achieve a key function; and the soft material piece comprises a cylindrical structure, the cylindrical structure sleeves the key and comprises an outer side wall, at least one circle of waterproof boss is arranged on the outer side wall in an annular manner, the waterproof boss and the shell are in extrusion interference, and the interference waterproof mode does not fail due to repeated press of the key by a user. Compared with a pasting and/or dispensing waterproof mode in the prior art, the key waterproof structure has the advantages that the waterproof reliability is greatly improved.

The embodiment of the invention provides a waterproof construction method for an engineering joint of a tunnel. The waterproof construction method is applied to a leakage part of a circumferential construction joint or a deformation joint of the tunnel. The waterproof construction method comprises the following steps: forming a pipe laying groove in the leakage part and eliminating sundries in thepipe laying groove; fixing a grouting pipe in the pipe laying groove; filling the grouting pipe full with a grouting material by a grouting nozzle by a grouting pump according to a preset pressure; when the grouting pipe is filled with the grouting material, stopping grouting and cutting and cleaning the grouting nozzle; and repairing residual holes after the grouting nozzle is cut so as to forma smooth basal plane on the lining inner wall of the tunnel. According to the waterproof construction method for the engineering joint of the tunnel, by means of process innovation, for example, groove removing, pipe laying, grouting and etc, in the leakage part of the engineering joint, the grouting material in the gap is full, and the waterproof reliability of the circumferential construction joint and the deformation joint of the tunnel is improved.

The invention relates to a key waterproof structure which comprises a front shell, a key assembly and a circuit board assembly. The circuit board assembly comprises a circuit board and a soft material piece. The circuit board comprises a connection end and is wrapped in the soft material piece, the connection end stretches out from one side of the soft material piece, the circuit board is further provided with at least one key elastic piece. The key assembly comprises keycaps corresponding to the key elastic pieces in number and position. A blind slot is formed in the front shell, and the side wall of the blind slot is provided with a through hole. The circuit board assembly is located between the key assembly and the bottom face of the blind slot. The key assembly abuts against the circuit board assembly and is clamped to the front shell in a matched mode. The connection end stretches into the inner side of the front shell through the through hole and is assembled to the through hole in a sealed mode; meanwhile, the keycaps and the key elastic pieces are correspondingly connected together, and the key function can be achieved through pressing and abutting of the keycaps and the key elastic pieces.

The invention discloses a chain link integrated online roll gap instrument. The roll gap instrument is connected to a dummy bar. The dummy bar includes two chains and a plurality of connecting piecesconnected between the two chains. The roll gap instrument includes an installation framework and connection shafts. A plurality of detection positions are arranged on the upper surface of the installation framework with a uniform interval. Each detection position is arranged as a rectangular through hole. Measure devices are arranged in the through holes. Connection shaft holes are arranged in thefront end and rear end of the installation framework. Connection shaft holes are also arranged in the dummy bar. The connection shaft holes in the front end and rear end of the installation frameworkand the corresponding connection shaft holes in the dummy bar are fixedly connected through the connection shafts, and so the installation framework is connected to the dummy bar. Fixed end caps areconnected to two ends of each connection shaft. The installation framework is provided with a power supply cabinet, an electric cabinet and a plurality of hoisting screw holes. The roll gap instrumentcan be freely arranged according to requirements of arranging a casting machine segment roll. The protection capability of key parts is further improved. And the roll gap instrument is free from limitation of the width of a casting machine crystallizer and interference of a rolling up guiding device.

The invention discloses a composite modified asphalt bridge deck waterproof bonding layer. The composite modified asphalt bridge deck waterproof bonding layer comprising a bonding lower layer, a bonding upper layer and a waterproof layer is characterized in that the bonding upper layer and lower layer are paved from epoxy modified asphalt of 0.4 kilogram per square metre; the waterproof layer is paved from thermoplastic elastomer modified asphalt of 0.6 kilogram per square meter; the epoxy modified asphalt is prepared, in proportion, from matrix asphalt, epoxy resin, curing agents, vulcanizingagents, curing accelerator, styrene butadiene rubber and talc; the thermoplastic elastomer modified asphalt is prepared, in proportion, from matrix asphalt, epoxidized natural rubber, thermoplastic elastomer, polyphenylene ether, and fiber. The composite modified asphalt bridge deck waterproof bonding layer has the advantages of making full use different characteristics of each material to enablethe waterproof bonding layer to have excellent bonding and waterproof properties, guaranteeing the epoxy modified asphalt to be in full bonding with a concrete bridge deck and an asphalt mixture surface layer, and avoiding various problems such as avoids problems such as waterproof layer breakage and flexural fatigue caused by base layer cracking stress transmitted to the waterproof layer, and premature aging under high stress by the thermoplastic elastomer modified asphalt.

The invention discloses non-curing rubber asphalt waterproof coating and a preparing method thereof, and relates to the technical field of waterproof coating. The coating includes, by mass, 44-54 parts of asphalt, 15-25 parts of naphthenic oil, 2-5 parts of a modifier A, 3-6 parts of a modifier B, 3-6 parts of a modifier C, 2-4 parts of rosin resin, 5-10 parts of SBR, 10-20 parts of ground calciumcarbonate, 1-2 parts of an antioxidant and 2-4 parts of a thickener, with the modifier A being modified polypropylene wax H430. The coating has a creep property and a self-healing property, is non-curing after long-term contact with air, can permanently maintain elastic-plastic colloid, has characteristic of high self-healing capability, instant adhesion after contact, difficult stripping, excellent integrated performance, a low cost and a reduced VOC content, can seal basement layer cracks and capillary openings and can adapt to complex construction operation surfaces.

The invention relates to a diffuse reflection type landscape lighting and indicating module based on solar energy and LED arrays for a road, and a road landscape lighting and intelligent indicating system composed of the module. The landscape lighting and indicating module comprises a baseplate, a transparent hard panel, a transparent packaging material layer, a photovoltaic cell and an LED lightsource; the LED light source comprises a circuit board and an LED element arranged on the circuit board; the packaging material layer is arranged between the baseplate and the hard panel, and comes into close contact with the baseplate and the hard panel; the photovoltaic cell is packed in the packaging material layer; the side, adjacent to the packaging material layer, of the hard panel is provided with a groove, and the LED element is arranged in the groove, and configured so that the side, facing the module, of the LED element emits light; and the residual space in the groove is filled withtransparent encapsulating materials. The landscape lighting and indicating module has the advantages of simple and compact structure, high mechanical compression resistance, high waterproofness, uniform lighting, no glare, low cost, etc.

The invention relates to a wound protection paste for shower bath, which comprises a watertight mask, wherein the periphery of the internal surface of the watertight mask is coated with an annular first adhesive layer. The wound protection paste for shower bath is mainly characterized in that the center side of the first adhesive layer is provided with a water retaining diaphragm, the internal edge line of the water retaining diaphragm is connected with the watertight mask into a whole, a V-shaped cavity is clamped and formed between the water retaining diaphragm and the watertight mask, and awater absorption pad is arranged in the V-shaped cavity; the internal surface of the water retaining diaphragm is coated with a second adhesive layer. The invention can provide reliable protection for wounds during shower bath, a patient can insouciantly and racily carry out shower bath, and the pain that the patient with skin wounds can not carry out shower bath for a long time is solved.

The invention relates to an automotive ventilation window. A top cover (4) and a main frame part (9) are connected into a whole by using stainless iron screws to form a complete ventilation window, a push-pull device (15) and an opening device are respectively fixed at the front ends and the rear ends of the top cover (4) and an inner cover (1), a ventilation fan (14) is fixed at the center of a wind scooper (6), one end of the wind scooper (6) is connected with the top cover (4), the inner cover (1), an auxiliary frame (3) and a decorative sheet (2) are arranged at an inner ring of the main frame part (9), the rear end of the top cover (4) is provided with a rain cover (5), the wind scooper (6) is connected with the rain cover (5), and an air inlet is designed in hand clasping profiles (10). The automotive ventilation window is characterized in that a rain shielding rib I (7) and a rain shielding rib II (8) are arranged in the wind scooper (6) to form double waterproof effects in cooperation with the rain cover (5). The structure provided by the invention has the advantages of strong air exhaust, low noise, high airtightness, labor saving in opening and closing operation, and inward/outward bidirectional opening.

In an upper surface of a bottom wall of a box body having a part accommodation room formed inside, a recess is provided. In the bottom of the recess, a bolt hole to fix an electrical junction box to a vehicle body is penetrated. In the upper surface of the bottom wall of the body hole, a flat sealing surface is formed to surround an opening of the recess. When an electronic unit is accommodated in the part accommodation room, the bottom surface of the electronic unit is brought into close contact with the sealing surface to close the recess, thus providing a seal between the part accommodation room and recess.

The invention provides a device and method for detecting the airtightness of a special part of a product, and relates to the technical field of airtightness detection devices. The device comprises a sealing mechanism, a testing box for placing a detected product, and a press-fit positioning mechanism. The test box moves in the first direction, wherein the first direction is a direction from a place where the detected product is placed to a work position for detecting the airtightness of the detected product. When the testing box moves to the work position for detecting the airtightness of thedetected product, the sealing mechanism is located at the upper end of the testing box, and the press-fit positioning mechanism drives the sealing mechanism to move to get close to or leave from the testing box. The sealing mechanism makes contact with the testing box to form a detection cavity for detecting the airtightness of the product. The device and method solve a technical problem that theairtightness of the special position and contour of the product cannot be detected in the prior art.

The invention provides a loudspeaker device. The loudspeaker device includes an upper cover, a lower cover and a sound production monomer; the supporting beam comprises a first surface and a second surface which are adjacent; The sounding unit comprises a first end face close to the upper cover and the second end surface close to the sound outlet and adjacent to the first end surface; a first adhesive is filled between the first end surface and the second end surface for gluing and sealing to form a first waterproof structure; the second surface is opposite to the second end surface; the jointof the first surface and the second surface is sunken towards the direction far away from the sound production monomer to form an air storage groove, a second adhesive is filled between the second surface and the second end surface, and the second adhesive permeates into the air storage groove to be glued and sealed so as to form blocked air which is stored in the air storage groove when a secondwaterproof structure is formed. When the first waterproof barrier on the front surface between the single voice diaphragm surface and the cover plate fails, the second waterproof structure can play awaterproof role, so that the waterproof yield and the waterproof reliability of the loudspeaker device are greatly improved.

The purpose of the present invention is to provide a control unit whereby the quantity of a seal material to be used can be reduced, while ensuring waterproof performance. This electronic control device is provided with: a housing, wherein a plurality of members are bonded, and a peripheral end portion thereof is configured from a plurality of sides; a circuit board housed in the housing; and seal structures that are disposed along the sides at the peripheral end portion. A seal material is provided to the seal structures such that the members are connected to each other. The seal structures disposed on one side of the peripheral end portion are configured such that each of seal cross sectional areas at end portions of the side is smaller than a seal cross sectional area at a center portion of the side.