883results about How to "Achieve waterproof effect" patented technology

The invention provides a baseline updating method. The baseline updating method includes: detecting a first frame capacitance value; setting a baseline according to the first frame capacitance value; detecting a current capacitance value of a touch screen, and calculating a difference value between the capacitance value and the baseline; when the difference value between the capacitance value and the baseline is smaller than a negative noise threshold, starting a first timer for timing; if the difference values within a first time range are smaller than the negative noise threshold, updating the baseline according to the capacitance value to activate an extreme value recovery function of the baseline; judging whether the touch screen is touched or not according to the difference value between the current capacitance value and the updated baseline; and if judgment shows that the touch screen is touched, deactivating the extreme value recovery function of the baseline to enable the baseline not to be updated when the difference value between the current capacitance value and the updated baseline is smaller than the negative noise threshold again. By the aid of the baseline updating method in the embodiment, the touch screen is applicable to various operating environments while the operating speed of the touch screen is unaffected, and a certain waterproof effect can be achieved.

The invention discloses a quick-setting cement-based capillary crystalline self-repairing waterproofing material and a preparation method therefor. The quick-setting cement-based capillary crystalline self-repairing waterproofing material is prepared from the following ingredients in parts by weight: 55-75 parts of silicate cement, 25-45 parts of quartz sand, 3-10 parts of buffering agent, 4-12 parts of active ingredient A, 4-15 parts of active ingredient B, 2-6 parts of expanding agent, 1-12 parts of calcium ion supplement and 1-4 parts of water reducing agent. The waterproofing material disclosed by the invention is prepared by a simple physical mixing method, is short in initial setting time and low in chloride ion content and can infiltrate into the interior of a cement-based material to form crystals so as to block up microcracks, thus, the folding and compressing resistance and secondary infiltrating resistance are improved, and meanwhile, the cement-based material is endowed with long-lasting self-repairing performance and good waterproof and durable performance. In addition, the preparation method for the quick-setting cement-based capillary crystalline self-repairing waterproofing material is simple, has low requirements on equipment and processes and has very high application power.

A water proof floor is made by dipping 1-3 pieces of anti wearing paper and decorative paper into melamine and dried, applying 2MPa-10MPa pressure with the heating press with these two kinds of paper stacked, in the temperature of 185deg.C-230deg.C, keeping the pressure for 25-60s and cooling naturally to form into the panel, roughening the upper surface of the wood slab or free wax fiber slab to form into uneven surface, applying adhesive agent on the upper surface of the slab, one side of the decorative paper of the panel attached on the up surface of the slab, applying 15MPa-45MPa pressure in normal temperature for 15-60 minutes, sticking the panel to the slab to make a big plate, cutting the big plate to the required strip, having key way vertically and horizontally to make the final product. The floor is not only anti wearing, and water proof, it is also being anti shock, fire resistant, anti erosion, and environment protective in nature.

The invention discloses a preparation method of a super hydrophobic coating based on super hydrophobic silica and resin. The resin as a substrate is coated on a glass slide; the super hydrophobic silica is bonded to the resin; and the resin is cured to prepare the super hydrophobic coating. The super hydrophobic coating prepared by the invention is composed of a base resin and a super hydrophobic silica surface layer. The body of the super hydrophobic silica layer is a super hydrophobic material, and if the surface is worn, the coating still has the same super hydrophobic property. When the super hydrophobic coating is polluted, the super hydrophobic function can be recovered by scraping off the surface layer. The super hydrophobic coating provided by the invention also can achieve waterproof effect due to the base resin.

The invention discloses a water-based nano reflection and heat insulation transparent coating and a preparation method thereof. The formula of the coating comprises the followings in percentages by weight: 35%-50% of a water-based acrylic emulsion, 5%-15% of water-based lithium silicate, 5%-15% of a water-based polyurethane emulsion, 5%-10% of a water-based heat insulation nano dispersion sizing agent, 5%-10% of a water-based heat insulation and heat preservation nano dispersion, 2%-12% of a wetting dispersant, 0.2%-0.5% of a flatting agent, 0.2%-1% of a thickener, 0.1%-0.2% of an antifungus and anti-mildew agent, 0.5%-2.5% of a coalescing agent, 0.5%-2% of a silane coupling agent and 5%-25% of deionized water. According to the water-based nano reflection and heat insulation transparent coating disclosed by the invention, under the precondition of without influencing lighting, heat radiation is blocked and infrared heat energy is prevented from being conducted into the interior of a base material through effective reflection and heat energy conduction, and thus the effects of heat insulation and heat preservation are reached. Heat energy, entering the room through the base material, generated by an outdoor heat source can be effectively blocked in summer, and indoor heat can be effectively blocked from being dispersed in winter, so that the application of refrigeration and heat preservation equipment can be effectively reduced, and the energy-saving effect is obvious.

The invention provides an antenna structure for intelligent wearable equipment, and an intelligent watch employing the antenna structure. The antenna structure comprises a housing and an intelligent circuit module. The housing comprises a first housing and a second housing, wherein the first housing is made of a conductive material, and the second housing is used for storing the intelligent circuit module. The intelligent circuit module comprises a PCB with an antenna feed point. The first and second housings are assembled and connected to form the housing, and are insulated from each other. The interior of the second housing is provided with an elastic connection part, wherein one end of the elastic connection part is connected with the first housing, and the other end of the elastic connection part is connected with the antenna feed point of the PCB in the second housing. According to the invention, a conventional wearable product housing is divided into an antenna radiation end and other parts, which are isolated with each other in an insulated manner through an insulating material. The antenna structure truly achieves the combination of the conventional technology and the advanced technology under the condition that the appearance beauty of conventional wearable equipment is not damaged.

The application discloses electronic equipment. The electronic equipment comprises a shell, a glass cover board and a display module; the shell comprises a substrate and a side wall extending from theperipheral edge of the substrate; the side wall surrounds to form an accommodation space; the glass cover board is covered on the side wall of the shell; the display module is arranged below the glass cover board and positioned in the accommodation space; an adhesive is arranged between the glass cover board and the shell; an adhesive fixing structure is arranged on the adhesive dispersing surface on the glass cover board, which is in contact with the adhesive; an adhesive overflow groove is formed on the contact surface on the shell, which is in contact with the adhesive; and the adhesive fixes the glass cover board on the shell by adhering the adhesive dispersing surface to the contact surface. According to the embodiment of the application, by arranging the adhesive fixing structure onthe adhesive dispersing surface of the glass cover board and forming the adhesive overflow groove on the contact surface of the shell, an adhesion area between the glass cover board or the shell andthe adhesive can be increased, adhesive strength between the glass cover board of a touch screen and the shell is effectively improved, and an adhesive failure of the touch screen is prevented, thereby achieving a waterproof effect.

An electronic direct-reading counter for a wet type water meter comprises a plurality of indication wheels and a plurality of carry coupling wheels corresponding to the indication wheels. The electronic direct-reading counter is characterized in that an indication wheel box of a meter seat is provided with mutually-closed indication wheel cavities and cavity grooves and cavities for mounting of circuit boards, the indication wheels are coaxially mounted at sectional intervals in the indication wheels, shaft core portions on two sides of each indication wheel are provided with a permanent magnet and a magnetic shielding plate respectively, and a magnetically inductive angle sensor coaxially corresponding to each permanent magnet of the shaft core of the indication wheel is arranged in the middle of each indication wheel. The electronic direct-reading counter has the advantages that 360-degree all-around measurement of the indication wheels can be realized, measurement resolution depends on practical precision of analog-to-digital conversion, and reading is accurate and stable; each indication is carried over to '0' every '9', reading from low order to high order in a carry manner is realized, sufficient reference information is available, and coincident codes and error codes are avoided; and electronic devices are reduced greatly, the risks of product faults can be reduced greatly, and water proofing level can reach IP68.

The invention relates to a finishing method of an anti-ultraviolet, antistatic, farina-proof and waterproof fabric, which is characterized in that: the finishing liquids are divided into anti-ultraviolet liquid 10-60g / L and anlistatig liquid 10-40g / L according to components, and the adjusting and finishing pH is 5-6; soak and mangle the fabric in the finishing liquids; the mangle expression is 30-80%; dry and bake the fabric for 30-90s at 160-195 DEG C; the finishing liquids are also divided into waterproof liquid 10-60g / L and farina-proof liquid 60-80g / L according to components, and the adjusting and finishing pH is 5-6; soak and mangle the fabric in the finishing liquids; the mangle expression is 30-80%; dry and bake the fabric for 30-90s at 160-195 DEG C. The finishing method of an anti-ultraviolet, antistatic, farina-proof and waterproof fabric has the advantages that: the anti-ultraviolet and anlistatig treatments are of one bath and the farina-proof and waterproof treatment are of one bath; the energy loss is reduced and the process is simplified to a certain degree; besides, the finishing sequence of first anlistatig treatment and then waterproof treatment can achieve the anlistatig and waterproof effects at the same time; the two technological process endows the fabric with four functions and all the functions do not affect each other.

The invention provides a novel driving battery box for an electric vehicle. The novel driving battery box is mainly characterized by comprising an insulation box body 1, an insulation box cover 2, a battery 3, monitoring systems 4, a driving system control module 5, a high-voltage connector assembly 6, a maintenance connector 7, radiating fans 9 and the like, wherein the radiating fans which are symmetrically distributed, the high-voltage connector assembly and a communication connector assembly which is connected with a BMS (Battery Management System) are arranged at the outer part of the insulation box body; a battery pack, the monitoring systems and the driving system control module are arranged at the inner part of the insulation box body. The novel driving battery box disclosed by the invention has the characteristics of light weight, simple shape structure, high space utilization rate, compact arrangement of internal parts, small occupied space, good heat dissipation and waterproof sealing properties and the like, an internal battery can be protected under various environment conditions, and strong power can be provided for a vehicle.

The invention relates to a waterproof electric connector which comprises an insulating body, a metal shell, a plurality of terminals, waterproof rubber and a waterproof rubber ring. The insulating body comprises a rubber core and a tongue plate. The tongue plate extends outwards from the rubber core. The metal shell surrounds the insulating body and forms an insertion space. The metal shell is of a seamless structure. The terminals are fixedly arranged on the rubber core. One end of each terminal is located on the tongue plate. The other end of each terminal penetrates out of the surface, deviating from the tongue plate, of the rubber core. The waterproof rubber is located on the side, deviating from the tongue plate, of the rubber core and is connected with the metal shell, the rubber core and the terminals. The waterproof rubber ring surrounds the front end of the metal shell. Compared with the prior art, the waterproof electric connector is small in size, high in strength, not prone to deformation and more durable.

The present invention discloses a sample production apparatus and a sample production method of a layered rock-soil body sample. The sample production apparatus is characterized by comprising a first layer sample production device and a plurality of second layer sample production devices, wherein the first layer sample production device and the second layer sample production devices are movably connected, the first layer sample production device comprises a sample production base (1), universal cylinders (2) and an auxiliary cylinder (3), the sample production base (1), the universal cylinders (2) and the auxiliary cylinder (3) are sequentially and movably connected from bottom to top, the second layer sample production device comprises a sample production auxiliary top cover (9) and the two universal cylinders (2) arranged in an up-and-down manner, the sample production auxiliary top cover (9) and the two universal cylinders (2) are sequentially and movably connected from bottom to top, the connection surfaces of the movable connections are respectively provided with an annular concave groove (8), and O-shaped rubber gaskets (4) are arranged inside the annular concave grooves (8). According to the present invention, with the apparatus and the method, the densities of each layer of the rock-soil body sample can be accurately controlled, such that the accurate and reliable test result can be obtained when the unidirectional freeze thawing cycling test, the penetration test, the compression test and other tests of the layered rock-soil body sample are performed.

The invention discloses nano inorganic powder modified organic silicon waterproof paint and belongs to the technical field of building waterproofing. The nano inorganic powder modified organic silicon waterproof paint disclosed by the invention is prepared from the following raw materials in parts by weight: 200 to 300 parts of an oligomer siloxane base material, 10 to 30 parts of an emulsifier, 20 to 60 parts of a stabilizer, 4 to 6 parts of a curing agent, 180 to 200 parts of a diluting agent, 3 to 6 parts of a thickener and 100 to 150 parts of nano inorganic powder; the nano inorganic powder is prepared from the following raw materials in parts by weight through mixing: 60 to 80 parts of nano silicon dioxide, 20 to 30 parts of nano aluminum oxide, 8 to 10 parts of nano zirconium oxide and 10 to 15 parts of nano hydroxyapatite. The nano inorganic powder modified organic silicon waterproof paint disclosed by the invention has the beneficial effects that the nano inorganic powder modified organic silicon waterproof paint has a relatively excellent weather-resisting performance and a long service life; a hydrophobic bionic structure formed by added inorganic nanoparticles does not hinder the permeation of water vapor in a substrate.

The invention discloses a double-sealing mechanical type bleeding valve for a gas holder, and the double-sealing mechanical type bleeding valve comprises a soft seal which is arranged between a valve base and a valve cover and a guide rail which is used for limiting the switching movement of the valve cover, wherein the valve base is provided with a water sealed tank which is arranged around the outer wall of the valve base for one circle and used for containing a sealing liquid; the valve cover is provided with a skirt plate which is matched with the water sealed tank and extends downward; the skirt plate is inserted into the liquid level of the water sealed tank when the valve cover is closed so that a water seal is formed; furthermore, a depth of inserting the skirt plate into the liquid level of the water sealed tank is less than a displacement formed by upwards moving the valve cover when the valve cover is opened. According to the bleeding valve, by arranging the water sealed tank and arranging the skirt plate on the valve cover, the skirt plate is inserted into the water sealed tank to form the water seal when the bleeding valve is closed, so that the water seal and the soft seal between the valve cover and the valve base form a double seal; and in addition, the depth of inserting the skirt plate into the water sealed tank is less than a distance formed by upwards moving the valve cover when the valve cover is opened, i.e., the water seal is automatically removed after the valve cover is opened. The double-sealing mechanical type bleeding valve provided by the invention is not only simple in structure but also is better in sealing performance and higher in reliability, and can be used for effectively preventing the gas in the gas holder from being leaked.

The invention provides a novel waterproof structure of construction engineering and a waterproof construction method, which can solve the problems that the lap joint parts are difficult to be completely and closely attached and the waterproof effect is bad in the waterproof structure and waterproof construction method of coiled materials in the prior art. The novel waterproof structure of construction engineering comprises a base surface and a waterproof layer provided with no lap seam entirely and formed by a basic layer and modified asphalt layers on the upper and lower surfaces of the basic layer. The waterproof construction method comprises the steps as follows: cleaning the base surface; heating and spraying the modified asphalt; paving the base; and spraying modified asphalt to construct a waterproof layer. As the waterproof structure does not have lap seam entirely, a completely-sealed waterproof effect like skin can be achieved; and moreover, the waterproof construction method can realize construction without lap seam, has more advantages in construction of special parts and ensures reliable waterproof effect.

The invention discloses a waterproof structure of a barometer built-in terminal device and a control method, relates to the field of terminal devices, and realizes the water resistible and breathable effects of the terminal device. The specific scheme is as follows: the waterproof structure of the barometer built-in terminal device is a built-in cavity of the terminal device; an opening is formed in a housing of the terminal device to allow air pressure in the waterproof structure to communicate with the external air pressure; the barometer is arranged inside the waterproof structure; a dust screen is arranged between the opening and the barometer; a waterproof screen is arranged between the dust screen and the barometer; a water drop detecting device is arranged between the waterproof screen and the barometer; a control valve is arranged between the water drop detecting device and the barometer; the water drop detecting device is electrically connected with the control valve; when the water drop detecting device detects that the water volume is up to the water volume threshold value, the control valve is turned off. The waterproof structure of the barometer built-in terminal device and the control method can be applied to various terminals.

The invention discloses an intelligent protection system for motorcycle keyless starting. The system comprises a head lock and a control host; the control host comprises an audio frequency / voice frequency early warning and alarming unit, a line fault detecting unit, an illegal starting calling unit, a vibration activating unit, a whole motorcycle power supply control unit, an ignition detecting and control unit, an self-separating control unit, an electric starting control unit as well as a single-chip microcomputer unit and a PKE (passive keyless entry) bidirectional communication unit of a main control switch and a code input unit; the head lock is an electric lock; the single-chip microcomputer unit is also connected with a head lock control unit; the single-chip microcomputer unit controls the head lock by the head lock control unit. The intelligent protection system for the motorcycle keyless starting has the beneficial effects that the unlocking code is strong in protection property and good in safety, and the mechanical lockset is unlocked in a keyless mode and is not easily damaged; the intelligentized and humanized levels of the operation of a motorcycle are high, and meanwhile, excellent properties that the system does not consume electric energy in a standby state and a battery is protected are effectively kept.

The invention relates to the technical field of automobile exhaust and discloses a water intake preventing automobile exhaust pipe utilizing a tesla valve. The water intake preventing automobile exhaust pipe comprises an exhaust pipe; a shunt pipe is rotatably connected into the exhaust pipe; a turbine rod is fixedly connected into the shunt pipe; a radiating pipe is connected with the external part of the exhaust pipe in a sleeving manner; a rear radiating shell is movably connected with the external part of the radiating pipe; an exhaust cover is fixedly connected with the external part of the exhaust pipe; an anti-reflux pipe is fixedly connected into the exhaust cover; and the tesla valve is arranged in the anti-reflux pipe. Through cooperative application of the anti-reflux pipe, thetesla valve, a movable block, a ventilating opening, a reset spring and a sealing plate, external water is effectively prevented from entering the exhaust pipe to realize a waterproof effect, and automobile safety is ensured; and under the action of the tesla valve, gas backward flow is effectively avoided, so that the possibility that an engine leaks oil due to gas backward flow is avoided, the automobile safety is further ensured and the using effect of the water intake preventing automobile exhaust pipe is effectively improved.

The invention relates to the technical field of waterproof structure systems of underground pipe gallery expansion joints and discloses a waterproof structure system of an underground pipe gallery expansion joint and a construction method of the waterproof structure system. The waterproof structure system comprises a middle-buried water stop belt, a joint embedding material, a joint filling material, waterproof coatings sprayed on the side wall of a pipe gallery, and waterproof rolls covering the expansion joint. The middle-buried water stop belt, the joint embedding material and the joint filling material are arranged at the position of the expansion joint. The portions, on the two sides of the middle-buried water stop belt, of the telescopic joint are filled with the joint embedding material. The joint filling material on the side, close to the inner wall of the pipe gallery, of the expansion joint is located on the outer side of the inner waterproof coating. The outer waterproof coating is sprayed on the surface of the outer wall of the pipe gallery, the first waterproof roll and the second waterproof roll are sequentially laid on the outer side of the outer waterproof coating, and the central axes of the first waterproof roll and the second waterproof roll are overlapped with the central axis of the expansion joint. The binding force of the waterproof structure system and a concrete structure is high, and the waterproof structure system is not likely to crack and good in waterproof effect.

Provided is a fiberglass binder composition which comprises a polycarboxy polymer, a polyol and a fluorinated polymer. The binder also preferably includes a catalyst which is an alkali metal salt of a phosphorus-containing organic acid. The resultant binder provides minimal processing difficulties and a fiberglass product which exhibits minimal water absorption.

The invention provides a wireless audio and video monitoring system which comprises acquisition sending equipment and far-end display control equipment. The acquisition sending equipment comprises an upper shell, a lower shell and a base; the lower shell is rotationally connected with the base by a bearing and a pressure plate; a functional assembly and a motor are arranged in an inner cavity formed by the upper and lower shells; the functional assembly and the motor are fixed on the lower shell; the motor drives the base to rotate around the bearing by a gear; the functional assembly comprises a main control module, a CCD (Charge Coupled Device) image sensor assembly, a wireless audio and video transmitting module, a wireless data transmission module, a battery and a microphone; and the far-end display control equipment comprises a wireless audio and video receiving module, a wireless data transmission module, an image processing board, a display screen, an input module and a battery. By the matching of the acquisition sending equipment and the far-end display control equipment, the system can be used for carrying out 360-degree rotating scanning and carrying out real-time wireless transmission on a field video image and audio information by receiving a remote wireless command.

The invention provides crystalline-type waterproof paint for preventing cement leakage, which belongs to the field of waterproofing work in constructional engineering, solves the technical problem of cement leakage prevention in the prior art, and is prepared from the following raw materials in weight ratio: 52.5 ordinary Portland cement, No. 95 granulated blast furnace mineral powder, penetrating agent, expanding agent, silica fume, quartz sand, modified bentonite, modified sodium silicate, complexing agent and crystallized precipitant. The cement-base waterproof paint provided by the invention enables concrete to be waterproof, is inorganic material, has the service life as long as concrete, improves concrete density to improve the concrete strength, and has the characteristics of low possibility of leakage, carbonization resistance, resistance to harmful substance permeation, simplicity in construction operation, low construction cost and the like.

The invention relates to an outdoor electric power distribution cabinet and particularly relates to a sunshading and rainproof type outdoor electric power distribution cabinet. The technical problem to be solved by the invention is to provide a sunshading and rainproof type outdoor electric power distribution cabinet with sunshading and rainproof functions for pedestrians, various functions, and high practicability. In order to solve the above technical problem, the invention provides the sunshading and rainproof type outdoor electric power distribution cabinet which comprises an electrical power distribution cabinet, supporting rods, a slide rail, a slide block, a first spring, a steel wire rope, a guide wheel, a sliding sleeve, a moving plate, a baffle plate, a guide plate, and a second spring. The support rods are welded to the top of the electrical power distribution cabinet. The sliding rail is welded to the tops of the support rods. The sliding block is slidingly connected to the sliding rail. The right side of the sliding block is connected to the first spring through a mode of hook connection. According to the sunshading and rainproof type outdoor electric power distribution cabinet, the left and right movement of the moving plate is realize through hands, thus the sunshading and rainproof effects are realized, convenience is brought to the pedestrians, and the functions of the electric power distribution cabinet are diversified.

Provided is a switching-on system of a rotary workpiece platform. A supporting platform is fixed at the top of a supporting frame, a motor is fixed on the side face of the supporting platform, one end of a workpiece platform rotary mechanism is connected with the motor, the other end of the workpiece platform rotary mechanism is connected with the rotary shaft, the rotary workpiece platform is fixed on the upper end of the workpiece platform rotary mechanism, a workpiece to be detected is placed on the rotary workpiece platform, an electric conduction slip-ring stator is inserted in the lower end of a rotary shaft, an electric conduction slip ring is mounted at the lower end of the rotary shaft through a fixing part, and an electric conduction slip-ring rotor is the input end of a wire and is connected with a power supply directly. The electric conduction slip-ring stator is the output end of the wire, and the wire penetrates through a hole formed in the side face of the rotary shaft, extends along the rotary shaft and is fixed on a waterproof connecting terminal at the lower end of the rotary workpiece platform. The switching-on system of the rotary workpiece platform has the advantages of being simple in structure, stable in operation, capable of achieving the purpose that the workpiece to detected is detected under a working condition, and capable of realizing effect of detection in rain effectively compared with the prior art.

The invention discloses a waterproof treatment technology of a capacitive touch screen. The waterproof treatment technology comprises the following steps: during the production of a sensor of the capacitive touch screen, insulation printing is added for a bonding area circuit as waterproof and anti-corrosion treatment, and the exposed conductive part of the sensor is treated only with silverglue PIN of the bonding area; after being subjected to SMT (surface mount technology) positioning, an FPC (flexible printed circuit) is treated with transparent sealing glue, and exposed bonding pads of a chip IC (integrated circuit), a capacitor, a resister and a diode element are sealed with the sealing glue; after the sensor is manufactured into small pieces and subjected to functional test, hot pressing is performed on the small pieces and the FPC, after pressing, functional test is carried out, then, insulating sealing glue is brushed, and UV drying is performed; the circuit formed through pressing the sensor and the FPC is adhered to a glass cover plate through small piece lamination process, the suspended parts between the FPC and the cover plate are stuck together through double faced adhesive tape, and few copper exposure parts of the FPC on the sensor surface are sealed with white sealing glue for sealing treatment. According to the waterproof treatment technology, the exposed conductive circuit of the touch screen and element bonding pad area are sealed, so as to achieve the waterproof function of the touch screen, and the waterproof treatment technology has the characteristics of easy technology and good waterproofness.

The invention discloses a high-strength polyurethane waterproofing paint which is prepared from the following raw materials in parts by weight: 50-55 parts of high-strength hydrophobically polyurethane, 26-29 parts of short oil alkyd resin, 7-10 parts of potassium tripolyphosphate, 3-5 parts of zinc stearate, 0.5-0.8 part of calcium lignosulphonate, 5-8 parts of bentonite, 3-6 parts of light calcium carbonate, 2-5 parts of talcum powder, 4-6 parts of butyl acetate, 1-3 parts of cyclohexanone, 0.1-0.4 part of an antifoaming agent, 0.2-0.5 part of a flatting agent and 0.3-0.6 part of a dispersing agent. The high-strength polyurethane waterproofing paint is high in strength and good in adhesive force, and has excellent water-resistance ability.

The invention provides an electronic machine, which can utilize a waterproof part to prevent water from entering the inside of the machine through the periphery of an operation part capable of performing a press operation and a rotation operation. The electronic machine provided by the invention is provided with a front panel with an opening, an electronic substrate arranged on the inside of the front panel, a switch mounted on the electronic substrate and provided with an operation shaft capable of performing the press operation and the rotation operation, the operation part mounted on the operation shaft and comprising an annular knob and a button rotated integrally with the knob, and a waterproof close cover arranged between the operation part and the switch and made of rubber material, wherein the waterproof close cover is used for covering the opening of the front panel, is glidingly and freely embedded on an annular bulge wall which is arranged coaxially with the operation shaft and erected on the front panel, and meanwhile is integrally and rotationally fixed on the operation part with the knob.

The invention discloses flame-retardant waterproof silicate wood adhesive and a preparation method thereof. The adhesive comprises the following components in parts by weight: 60 to 70 parts of silicate solution, 10 to 15 parts of carbon nanotube dispersion liquid, 1 to 3 parts of silane coupling agent, 3 to 5 parts of organic silicon emulsion, 5 to 10 parts of vermiculite, 4 to 6 parts of white carbon black and 8 to 12 parts of silicon phosphate. The preparation method comprises the steps of modifying the silicate solution collectively through the carbon nanotube dispersion liquid and organic silicon emulsion and preparing silicate adhesive. The flame-retardant waterproof silicate wood adhesive is environmentally friendly, toxic-free, simple and convenient to prepare and excellent in the performance of the adhesive material.