98results about How to "Achieve water resistance" patented technology

Belonging to the field of the production techniques of composite artificial boards, the present invention relates to a production method of an oriented structural bamboo or bamboo-wood flakeboard, in particular to a production method of an oriented structural flakeboard using bamboo and bamboo wood as materials. The method includes processes, such as cutting off, flaking, drying, sizing, assembly and hot-pressing formation, cutting, etc. The production technique is simple, the production cost is low, the product is high-quality and cheap, the choosing of materials is convenient, and mass production can be realized. The physical property of the product measures up to the standard of an oriented structural flakeboard, and the board surface is dense and even, thus achieving waterproof, dampproof and antifouling properties. After being cut and grooved, the product can be directly used for containers, carriage bottom boards, furnitures, packing boards, etc., and moreover, the product does not need surface processing or does not need to be added with a wood veneer and be processed in order to be directly covered with a film or veneered with other panels.

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 inductive addressable switch includes inductive switchboard and inductive knob. Being positioned on two side of the operation panel, the switchboard and knob are located by attractive interaction between first permanent magnet at center of the inductive switchboard and second permanent magnet at center of the inductive knob. The inductive switchboard includes n (larger than or equal to 3) pieces Hall switches distributed on same circumference evenly. The inductive knob includes base in use for fixing up second permanent magnet, knob instilled in the base, and m (even number) pieces of permanent magnet distributed on same circumference of inner casing of knob evenly. Rotating the knob generates magnetic field variational to the inductive switchboard. The invention does not need to make hole on body case of electrical installation so as to keep integrality of installation, and reach purpose of moistureproof and anticreep.

The invention discloses an organosilicon concrete protective agent and a preparation method. The organosilicon concrete protective agent comprises the main compositions in percent by volume: 50-60% of an alkyl alkoxy silane, 5-10% of terminal-substituted polydimethylsiloxane, 3-5% of an emulsifier, 0.05-1% of a catalyst, 5-10% of a solvent and 20-30% of water. The protective agent is prepared by uniformly mixing the alkyl alkoxy silane, terminal-substituted polydimethylsiloxane and the emulsifier in the organic solvent at room temperature, then adding the catalyst to perform a uniform reaction, then dropwise adding the completely-reacted oil phase system into deionized water, and performing high-speed shearing for obtaining a paste. The preparation method is simple, the coating operation is simple, the cost is low, when the concrete surface is coated with the organosilicon concrete protective agent, a layer of a hydrophobic film is formed along the aperture inner walls of concrete, so that freeze-thaw cycle, chloride ion erosion and the like can be prevented, and the organosilicon concrete protective agent is applicable to facilities such as highways, bridges, tunnels, seaport wharfs, airports and the like, and is applicable to industrialized production.

The invention relates to a porous superfine polyamide 6 fully-drawn yarn, a preparation method thereof, and equipment thereof. According to the invention, existing FDY production equipment is adopted. A raw material polyamide 6 is sliced and dried; an additive is added on line; the material is subject to screw extrusion and melt extrusion; the material is then cured with a gradually cooling manner and a circular air blow cooling manner; with a reasonably selected spinning temperature of 259-262 DEG C, an air temperature in the circular air blowing process of 19-23 DEG C, a humidity of 85-95%, an air velocity of 0.35-0.45m/s, an oiling and clustering position of 700-800mm, and a winding speed of 4100-4600m/min, the porous superfine polyamide 6 fully-drawn yarn product with a specification of 55dtex/144f-75dtex/144f is prepared. Flexible operation is adopted in the preparation method. The preparation method is advantaged in simple technology and low production cost. The product is advantaged in stable performance, good yarn evenness, and good coloration property.

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 relates to a manufacture method for polyocarboxy acid series concrete compound water proof agent that includes polyocarboxy acid water reducing agent 20-80 portions, multihydroxyl carboxyl compounds 1-10 portions, air entraining agent 0.1-1.0 portions. The advantages of the invention are that: it decreases self contraction and dry contraction inner concrete, increasing degree of compaction, decreasing concrete capillary fissure, achieving the ability of water proof and anti-leaking function; the anti-leaking grade is over the other water proof agent; it has slushing pumping, water poof, and constration anticracking function; and has high quality and low price.

The invention discloses a construction treatment method for building cracks. The construction treatment method comprises the steps that on-site crack checking and locating are conducted; a U-shaped groove is dug; rapid hardening micro expanding cement is adopted for sealing the U-shaped groove, and a grouting channel is formed in the bottom of the U-shaped groove; water feeding and gas tests are conducted; preliminary grouting and secondary grouting are conducted; surface dressing is conducted; and an epoxy emulsion mortar waterproof enhancement layer is made, and water is sprayed for wetting and maintenance. The construction treatment method has the beneficial effects that the construction technology is simple and easy to achieve, the construction is fast, the construction period is short, environmental protection and energy saving are achieved, the labor intensity of workers is small, the construction comprehensive cost is low, and the application range is wide.

The invention provides a control device of domestic appliance, which comprises a panel, a knob device arranged on the top face of the panel, a touch-sensitive electrode arranged on the bottom face of the panel and a circuit board, wherein the knob device comprises a touch-sensitive part, a knob body and a fixing part; the touch-sensitive part is arranged at the bottom of the knob body; the fixing part is a permanent magnet and is arranged on the knob body; the circuit board is provided with a permanent magnet; the knob device is fixed on the panel by the attraction between the fixing part arranged on the knob device and the permanent magnet arranged on the circuit board; and the position of the touch-sensitive electrode arranged at the bottom face of the panel corresponds to that of the touch-sensitive part arranged at the bottom of the knob body. The knob device of the invention is fixed on the panel by the attraction between the fixing part arranged on the knob device and the permanent magnet arranged on the circuit board without reserving a hole on a shell of the appliance for mounting the knob device, so the control device keeps the integrity of the appliance, fulfils the aim of preventing water, moisture and creepage, can be operated by a knob and in the way of touch control with fingers and is convenient and practical.

The invention provides a waterproof coating. The waterproof coating comprises a film forming agent, a hydrophobic agent, hydrophobic nano-silica and hydrophobic paraffin. The waterproof coating is a colorless and transparent coating substance having a waterproof function, and can be directly coated on the circuit board or shell of a mobile phone to realize waterproof and dustproof effects. A preparation technology of the waterproof coating is simple and can be simply operated, so the production cost of the mobile phone is reduced. The coating is directly coated on the circuit board, so the obtained coat has an excellent waterproof performance, thereby there is no need to change the original structure design of the mobile phone.

The invention provides a nano surface treatment agent and a treatment method thereof covering surfaces of metal materials. The method comprises the following steps: 1) remove the oil and impurities from the surface of the material; 2) the nano-coated surface treatment agent to the surface to form a protective film by chemical bonding of the nano surface treatment agent to the surface of the material, wherein the nano surface nano treatment agent is a solution formed by mixing at least one alkoxide, water and an alkaline compound phase, and through a catalytic condensation reaction of alkoxide and water by the alkaline compound phase, the nano-surface treatment agent has a high flash fire point, and the surface treatment agent, and further, containing resins, additives and wax. The present invention will nanometer surface treatment agent chemically bonded to the surface of the material to increase the adhesion of a protective film on the surface of the material, and at the same time achieve the anti-corrosion and wear-resistant effect.

The invention discloses a modifying agent used for strengthening dimensional stability of compound wax emulsion of quick-growing wood. The modifying agent is prepared from the following raw materials in parts by weight: 3-3.5 parts of formaldehyde, 2-3 parts of urea, 1.5-2 parts of hexamethylenetetramine, 0.02-0.03 part of maleic anhydride, a proper amount of acetic acid, a proper amount of ammonia water, a proper amount of deionized water, 20-23 parts of dihydroxymethyl dihydroxyl ethylene urea with solid content being 42wt%, 1.5-2 parts of magnesium chloride hexahydrate, 10-11 parts of silica sol, 3-4 parts of paraffin, 2-3 parts of microcrystalline wax, 3-4 parts of fatty alcohol-polyoxyethylene ether and 2-2.5 parts of polyvinyl alcohol. The modifying agent disclosed by the invention is good in stability, is safe and environmentally-friendly and is suitable for industrial production; impregnation pressure treatment is carried out on the quick-growing wood, so that the modifying agent can penetrate into the wood to achieve waterproof and flexible effects, and therefore, the modified wood is not liable to crack, is resistant to moisture, is good in dimension stability; and furniture manufactured from the wood is strong and durable in use, is waterproof and mildew-proof, and can be used outdoors.

A prefabricated type pipe joint of a comprehensive pipe gallery comprises erected trapezoidal segment structures and inverted trapezoidal segment structures. Convex openings are made around fracturesof the erected trapezoidal segment structures; waterproof rubber strip mounting grooves are made around the convex openings; the mounting grooves on the two sides are located in the front faces of theconvex openings, and the upper and lower mounting grooves are located in the top faces of the convex openings; hoisting bolt holes are reserved in the tops of the side walls of the two sides of the erected trapezoidal segment structures; notches are formed around the inverted trapezoidal segment structures; and the convex openings of the erected trapezoidal segment structures and the notches of the inverted trapezoidal segment structures are in Z-shaped tongue-and-groove connection in the mounting process. Lateral extrusion force and vertical extrusion force are generated directly through theshapes and the weights of the structures in the vertical mounting process to extrude waterproof rubber strips, so that the water-stopping and waterproof purposes are achieved. Meanwhile, the waterproof rubber strips can be mounted immediately after engineering prefabricating, accordingly, the mounting efficiency is improved, the on-site mounting procedures are reduced, and the construction cost is reduced.

The invention relates to a molding process of a display screen component. The molding process of the display screen component comprises the following steps: a display screen is provided, and has a display surface and side surfaces surrounding the periphery of the display surface, a display area and a non-display area are arranged on the display surface, and the non-display area surrounds the display area; an optical film is plated on the display screen, and has a light shielding part and a light transmitting part, the light transmitting part is correspondingly laminated on the display area, and the light shielding part is correspondingly laminated on the side surfaces and the non-display area; a transparent protection plate is provided, and has a lower surface at least covering the display area; a frame is machined by an injection molding process, and the inner side of the frame has a frame flange; and the transparent protection plate and the frame are fixed on the optical film, the edge flange correspondingly shields the non-display area, and the lower surface at least covers the display area.

The invention discloses an assembled type waterproof power distribution cabinet with an automatic temperature control function. The assembled type waterproof power distribution cabinet comprises a base, a cabinet body and a top cover; a concave sliding groove is formed in the base; convex beams and pulleys are arranged on the bottom edges of three cabinet bodies relatively; matched hasp locks are arranged on the adjacent framework vertical columns and cross beams of the first cabinet body and the second cabinet body, and the adjacent framework vertical columns and cross beams of the second cabinet body and the third cabinet body respectively; bent telescopic sleeve pipes are also adopted on the top parts of the adjacent cabinet bodies to form sealed electric wire and cable channels; each cabinet body is also provided with an air inlet, an air outlet, a heat dissipation apparatus and an automatic control apparatus; and the V-shaped top cover can be stably embedded and inserted in clamping grooves formed in the top parts of the first cabinet body, the second cabinet body and the third cabinet body. The power distribution cabinet can be assembled onsite, so that the size of the single cabinet body can be reduced, and the power distribution cabinet is convenient to transport and high in stability after assembling; therefore, integration in form is realized while circuit interconnection is also achieved; and in addition, the power distribution cabinet is excellent in waterproof and heat dissipation functions, and convenient and flexible to use.

The invention relates to a clothes sewing method based on a laser technology and an ultrasonic technology. According to the method, the laser cutting technology is utilized to cut two clothes fabricsto be sewn, corresponding fit fabric edges are cut out, waterproof adhesive film is spread at the sewing positions of the two fabrics to bond and fix the two fabrics, and meanwhile the ultrasonic hot-melting technology is utilized to fixedly sew the two clothes fabrics. According to the clothes sewing method based on the laser technology and the ultrasonic technology, three layers of the adhesivefilm are adopted to bond the two fabrics in fixed and hot-melting modes, a seamless sewing effect can be achieved, and sewing is strong in firmness, stability and tension resistance; and meanwhile, the laser cutting technology is utilized to perfectly cut the corresponding fit fabric edges out fromthe fabrics, then the ultrasonic technology is adopted to perfectly bond the two fabrics together through the waterproof adhesive film, and therefore the effects of waterproofness, breathability and moisture-penetrability are achieved.

The invention relates to a modified chitosan-silicon dioxide composite aerogel material as well as a preparation method and application thereof. According to the modified chitosan-silicon dioxide composite aerogel, a chitosan-silicon dioxide aerogel is modified by an aerogel modifying aid containing a fluorinated urethane monomer structure; by reacting active hydroxyl on the chitosan surface with amino of the modifying aid and grafting the surface of the composite aerogel with a group with waterproof and oil-proof properties, the pores of the aerogel are covered, and oily substances are no longer adsorbed; the silicon dioxide aerogel structure in the aerogel has a heat retention property; meanwhile, since chitosan has a property of forming an air- and moisture-permeable film, a coating with uniform thickness is formed on textile surface to realize comprehensive properties of water and oil proofing, moisture permeation and heat retention.

The invention discloses a preparation method of high performance composite sheet material, and the composite sheet material is prepared by preparation of melamine dipping veneer and tight adhesion of wood-based plate and original board. Original veneers or technical veneer materials are impregnated in to a reaction tank containing melamine resin and benzaldehyde, and are dried after completing impregnation, and cut into needed dimensions; the impregnated original veneers or technical veneer are stacked with brown papers or common veneers together, and the materials are pressed together at a high temperature, and then the melamine dipping veneer composite board is formed. The high performance composite sheet material dipping surface layer is polished or directly coated with a toning paint and a waterproof wear resistant surface paint, and the surface treatment improves appearance effect and performance. The toning paint treatment may not be applied, and common surface paints may be coated for realization of surface treatment or the surface paint is not coated. The invention also discloses a high performance composite board with water resistance, heat resistance, arc resistance and excellent flame resistance.

The embodiment of the invention discloses a waterborne wood enamel seal primer and a preparation method thereof. The waterborne wood enamel seal primer is prepared from the following components in percentage by mass: 30 to 50 percent of waterborne nanometer enamel seal emulsion, 5 to 8 percent of waterborne nanometer flame-retardant dispersion slurry, 0.5 to 1 percent of waterborne nanometer silver dispersion slurry, 10 to 20 percent of waterborne polyurethane emulsion, 1 to 3 percent of a waterborne wetting dispersant, 5 to 10 percent of a lead-free filler, 1 to 3 percent of a penetrant, 0.5 to 1 percent of a solubilizing stabilizer, 0.3 to 0.5 percent of an ultraviolet absorption stabilizer, 0.2 to 0.5 percent of a mildew preventive, 0.5 to 2 percent of an anti-fouling agent, 1 to 3 percent of an amine neutralizer, 2 to 5 percent of an antifreezing agent, 0.5 to 2.5 percent of a coalescing agent and 10 to 25 percent of deionized water. The waterborne wood enamel seal primer has excellent properties such as water resistance, early compression resistance, reinforcement expansion resistance and sanding property; the burning of wood products can be effectively prevented and reduced; and the waterborne wood enamel seal primer has active mildew-resisting and antibacterial properties.

The invention relates to a method for determination of the content of verapamil hydrochloride in a drug by using an electrogenerated chemiluminescence behavior of a composite modifier-supported pyrolytic graphite electrode; with use of an auxiliary film forming property of TiO2 sol and silica sol and a good electrocatalytic property of ZnO@Ag, a TiO2 sol/ZnO@Ag/silica sol composite modifier is prepared; the surface of a pyrolytic graphite electrode is supported with bipyridine ruthenium by a sensor modification technology, an electrogenerated chemiluminescence sensor which is used for determination of verapamil hydrochloride and has good stability and high sensitivity is prepared, and simple and rapid determination of verapamil hydrochloride is achieved. Under optimal test conditions, 1.0*10<-7>-1.0*10<-4> mol/L verapamil hydrochloride has a linear relationship (R<2>=0.9731) with the relative luminescence intensity, and a detection limit (S/N=3) is 7.11*10<-9> mol/L. The method has relatively high selectivity and sensitivity for determination of verapamil hydrochloride, and realizes repeated use of bipyridine ruthenium.

The invention discloses a connection method and structure for an inner battery box and an outer battery box. In the invention, the inner battery box (1) is connected with the outer battery box (2) in a drawer manner; an elastic limited seat generates pre-pressure to the inner battery box (1) between the front end of the inner battery box (1) and the outer battery box (2); and a bolt (4) on the inner battery box (1) is connected with a keyhole (5) in the outer battery box (2) in an inserting manner, so as to ensure no displacement of the relative positions of the inner battery box (1) and the outer battery box (2). The connection method and structure can improve the connection reliability between the inner battery box and the outer battery box, and avoid sudden breakaway and electric discharge to result in connector burning to affect the normal operation of a vehicle due to relative movement and friction between the inner battery box and the outer battery box.

The invention discloses a sunlight reflective thermal-insulation paint, and a preparation method thereof. The sunlight reflective thermal-insulation paint comprises, by weight, 35 to 50 parts of fluorocarbon resin emulsion, 5 to 15 parts of a high reflectivity pigment, 5 to 10 parts of polymer hollow micro-sphere, 5 to 10 parts of a reflective material, 5 to 15 parts of nanometer metal powder, 3 to 8 parts of nanometer silica, 0.2 to 0.5 part of a wetting dispersant, 0.4 to 0.8 part of a thickening agent, 0.2 to 0.4 part of a bactericide, 0.5 to 2.5 parts of a film forming auxiliary agent, 0.6to 1.6 parts of an antifoaming agent, and 15 to 25 parts of deionized water. The sunlight reflective thermal-insulation paint is capable of reflecting thermal energy transmission effectively, blocking heat radiation, blocking infrared heat energy, is excellent in thermal insulation performance, is low in energy consumption, is obvious in thermal insulation effect, and is long in service life; thepreparation method is simple, and is suitable for large scale production and applications.

The invention discloses a waterproof and dustproof electric control box cooling structure, which belongs to the technical field of automobile electric control. The waterproof and dustproof electric control box cooling structure comprises a box cover and a box bottom, wherein the box cover and the box bottom are matched; the box cover covers the box bottom; the surface where the box cover and the box bottom are matched is provided with a boss; the matching surface of the box bottom is provided with a sealing groove; the bottom part of the sealing groove is provided with a discharge port; the boss has an inverted trapezoidal section; a sealing ring is arranged between the top surface of the boss and the bottom surface of the sealing groove; the inner side of the sealing ring is provided with an exhaust groove; the top surface of the box bottom is provided with a groove; the groove and the lower matching surface of the box cover surround a cooling hole; and the cooling hole is communicated with the exhaust groove and the discharge port. Through arranging the cooling hole at the inner side of the box bottom, the outlet end of the cooling hole faces an inclined surface, heat is guided, hot air flow is exhausted more easily from the cooling hole and then exhausted outside the box body via the exhaust groove of the sealing ring and the discharge port, and better cooling effects are realized.

The invention relates to a nanometer environmentally-friendly inflaming retarding cotton yarn filling rope and a manufacturing process thereof. The rope comprises a polyester cotton layer, a pure cotton layer or a pure polyester layer at the inner layer; and an inflaming retarding layer is arranged outside the inner layer. The rope is manufactured through the following process steps: firstly spraying an inflaming retarding liquid on a substrate cloth by using a high pressure spray gun, wherein the inflaming retarding liquid is prepared by nanoscale Mg(OH)2, nanoscale Al(OH)3, smoke suppression agent and acrylic emulsion; adhering the inflaming retarding liquid on the substrate cloth at more than two atmospheres at 150-160 DEG C; drying in vacuum at a high temperature; drying at the temperature of more than 150 DEG C under 1-2 atmospheres; rolling and performing pair twisting in a digital way; and packaging in vacuum so as to manufacture the rope. According to the manufacturing process, the environmentally-friendly nanoscale Mg(OH)2 and Al(OH)3 fire retardant is mixed and dissolved in the acrylic emulsion, and the mixture is coated on the inner surface of waste cotton yarn directly, thereby improving the flame retardant property of an objective product (the oxygen index is more than 40%).

The invention discloses an anti-reflection plastic film. The film is formed by sequentially laminating a base material, a hard coating layer, a deposition layer and a wet method layer, wherein the hard coating layer covers the upper layer, the lower layer or the upper and lower layers of the base material; the deposition layer is formed by repeatedly and alternately depositing a high-refractive index deposition layer and a low-refractive index deposition layer which are sequentially and alternately laminated; and the high-refractive index deposition layer is formed on the upmost layer. A preparation method for the film comprises the following steps of: (a) preparing a hard coating layer composition; (b) coating the hard coating layer composition obtained in the step (a) onto one surface or two surfaces of the base material, and performing photopolymerization to form the hard coating layer; (c) sequentially and alternately coating the high-refractive index deposition layer and the lower-refractive index deposition layer on the hard coating layer by a vacuum deposition method, a sputtering method or an ion gold-plating method; (d) preparing polysiloxane oligomer; and (e) coating the polysiloxane oligomer obtained in the step (d) onto the high-refractive index deposition layer on the upmost layer by a wet deposition method. The film prepared by the technical scheme has high abrasion resistance, water resistance and chemical resistance, a good anti-reflection effect and excellent physical and chemical properties and can be suitable for various optical parts.

The invention discloses a protection material for marble energy curing surface treatment and a production technology, relates to improvement of marble chemical materials, and particularly relates to a protection material for marble curing surface treatment. In order to achieve the target, the protection material for marble energy curing surface treatment is prepared from the following components in the formula: diethylene glycol diacrylate, tripropylene glycol diacrylate, trimethylol propyl triacrylate, trimethyl benzoyldiphenyl phosphine oxide, hydroxycyclohexyl ketone, a photoinitiator, high-functionality urethane acrylate, aliphatic polyester, a modified dilute acid ester polymer defoaming agent, a fluorine-modified polysiloxane polymer and silsesquioxane. Existing multiple materials with a single function are replaced, the procedures are combined, and existing air drying or heat drying non-environment-friendly auxiliary raw materials are replaced with energy (UV/EB) curing, so that the construction efficiency is increased, the technology is improved, the density, the glossiness and the surface protecting performance of a stone are improved, the waterproofing, antifouling and corrosion-resistant targets are achieved, the production cost is directly reduced and multiple items of indirect cost are reduced.

The invention relates to an intelligent anti-theft well lid. The intelligent anti-theft well lid comprises a well lid bottom seat, a well lid and a downhole sensor, wherein the well lid is installed in the well lid bottom seat, a positioning device is arranged on a connection position of the well lid and the well lid bottom seat, an observation window is arranged in the well lid, a mounting frameis arranged on the observation window, the positioning device comprises a positioning groove formed in the periphery of the well lid bottom seat, a fixing device is arrange at the bottom of the well lid, a rotation mechanism is arranged in the fixing device, the rotation mechanism is movably connected in the positioning groove, an abnormal movement reminder device is arranged at the bottom of thefixing device, the abnormal movement reminder device is connected with the downhole sensor, the downhole sensor is connected with the mounting frame, and a transmitting antenna is arranged on the downhole sensor. The intelligent anti-theft well lid can be obtained by performing integrated anti-theft refit on a traditional well lid, and simultaneously by installing a wireless signal transmission device, the intelligent anti-theft well lid enhances signal intensity so as to guarantee signal transmission of heating equipment.