42results about How to "Increase the amount of foam" patented technology

The invention discloses bubble bath oil and a preparation method thereof. The components of the bubble bath oil comprise, by weight, 30 to 55% of sweet almond oil, 1 to 4% of cocamidopropyl DEA, 15 to25% of laurinol polyether sulfate TIPA salt, 3 to 8% of propylene glycol, 20 to 35% of lauryl alcohol polyether-4, 1 to 4% of PEG-7 glyceryl cocoate, and 0.5 to 1% of auxiliary component. The bubblebath oil has the advantages that dirt and excessive sebum on the skin can be removed; the grease balance of the skin can be maintained; the itching and dry skin state can be improved; the lubricatingfeeling of the skin can be improved; the nourishing effect is realized during cleaning; and real two-in-one effect of washing and protection is realized.

The invention discloses a once-firing multi-density composite foamed ceramic decorative board. The once-firing multi-density composite foamed ceramic decorative board comprises a first foamed layer, asecond foamed layer, a sealing layer and a surface decorative layer arranged in order from bottom to top, wherein the density of the second foaming layer is less than the density of the first foaminglayer; the first foaming layer, the second foaming layer, the sealing layer and the surface decorative layer are fired once; the sealing layer is used for sealing a hole in the surface of the secondfoaming layer; the sealing layer is an engobe layer, or the sealing layer is a non-foamed ceramic slurry layer and an engobe layer, and the non-foamed ceramic slurry layer is located between the foamed layer and the engobe layer; the surface decorative layer is a glazed layer. Correspondingly, the invention also discloses a preparation method of the decorative board. The sealing layer can improvethe flatness of the product and improve the decorative effect of the product. The foamed ceramic decorative board is easy to clean. The foamed layers, the sealing layer and the surface decorative layer are fired once, and the layers are firmly bonded.

The invention discloses a once-firing multi-density composite foaming through-body decorative board comprising a first foaming layer, a second foaming layer and a sealing layer which is used for sealing holes on the surface of the second foaming layer, wherein the first foaming layer, the second foaming layer and the sealing layer are arranged from bottom to top successively; the density of the second foaming layer is less than that of the first foaming layer, and each of the first foaming layer, the second foaming layer and the sealing layer contains a pigment in formula; the sealing layer isan engobe layer, or the sealing layer is a non-foaming ceramic billet slurry layer and an engobe layer, and the non-foaming ceramic billet slurry layer is located between the second foaming layer andthe engobe layer. Correspondingly, the invention also discloses a preparation method for the decorative board, wherein the preparation method comprises the steps: carrying out ball milling of a billet raw material of the foaming layer, aging with a slurry pool, carrying out spray granulation, aging with a bin, pressing into a green body, drying, and applying with the engobe layer, or applying with non-foaming ceramic slurry and engobe soil. The decorative board is a decorative board with through-body color, and has the characteristics of easy cleaning, high surface smoothness and appropriatedensity of the product.

The invention discloses a prevention and control device for air leakage of an underground goaf. The prevention and control device comprises an air inlet joint, a compressed air pipe, an adding device,a slurry-gel foam generator, a slurry inlet joint, a grouting pipe, a liquid sucking pipe and the like. The adding device utilizes the negative pressure generated by high-speed jet, meanwhile, adds two base materials required for preparing blocking foam, and is connected in a parallel connecting mode, thus the resistance loss of operation of the prevention and control device is decreased, and a paraboloid-shaped multi-layer composite concave mesh is arranged on a fixing hole plate of the slurry-gel foam generator. The prevention and control device only takes the underground existing groutingpressure and compressed air as driving force, electrical equipment during traditional blocking foam preparation is not needed, the essential safety of using of the prevention and control device is improved, and the prevention and control device has the remarkable advantages of simple structure, high reliability and high applicability.

The invention discloses a foam gun, which comprises a gun body, a liquid inlet valve, a liquid outlet valve and a switching device, wherein the switching device can open or close the liquid outlet valve; and the liquid outlet valve comprises a liquid outlet nozzle, a valve plug and a reset spring. The foam gun is characterized in that: a sealing ring made of plastic is arranged on the valve plug and is sealed with the liquid outlet nozzle; the leakage and / or curing of foam caulking agent in the foam gun are / is effectively prevented and avoided; the danger of the leakage, burning or explosion of the foam caulking agent or gas is effectively prevented and avoided; the abrasion performance, airtightness and stability of the sealing ring are improved; and the leakage of the foam caulking agent caused by abrasion, looseness, deformation, or peeling off is avoided. The foam gun has a simple and reasonable structure, greatly improves the foaming quantity and quality of foam caulking agent, saves energy, has safe and cleaning use, prolongs the service life, has low cost, and is suitable for mass production.

The invention provides a foaming agent, relates to a building admixture, particularly relates to a foaming agent added into concrete and also relates to a preparation method of the foaming agent. A compound type foaming agent is prepared on the basis of the original foaming agent; several types of materials with excellent foaming performance are added into the foaming agent; then other admixturesare added into the foaming agent, so that the effects of increasing foam, stabilizing foam and adjusting are achieved; the compound type foaming agent prepared by the invention has been verified in the actual production; the compound type foaming agent has the prominent properties of high foaming capacity, low foam loss, low influence on strength and the like.

The invention discloses a portable tunnel blasting dust removal device in the technical field of tunnel blasting dust removal, which comprises a movable base, the top of the movable base is fixedly connected with a discharge box, and the inner side of the discharge box is connected with a dipping mechanism for rotating to dip; the right side of the discharging box is provided with an air blowing mechanism which is used for blowing air when the dipping mechanism rotates to a vertical state after dipping, and the dipping mechanism is matched with the air blowing mechanism to perform stable foaming operation in the discharging box; when dust in the tunnel needs to be removed every time, the material dipping mechanism is matched with the air blowing mechanism, foaming liquid is continuously dipped, meanwhile, the foaming liquid is continuously made to generate bubbles smoothly and drifts away in the tunnel, dust is adsorbed to the surfaces of the bubbles, the dust in the tunnel is rapidly removed, the device is better in foaming effect, and the service life of the device is prolonged. The waste of foaming liquid is avoided, the use is simpler and more convenient, and the use in the tunnel is facilitated.

The invention discloses a foam gun, which comprises a gun body, a liquid inlet valve, a liquid outlet valve and a switching device, wherein the switching device can open or close the liquid outlet valve; and the liquid outlet valve comprises a liquid outlet nozzle, a valve plug and a reset spring. The foam gun is characterized in that: a sealing ring made of metal is arranged on the valve plug and is sealed with the liquid outlet nozzle; the leakage and / or curing of foam caulking agent in the foam gun are / is effectively prevented and avoided; the danger of the leakage, burning or explosion of the foam caulking agent or gas is effectively prevented and avoided; the abrasion performance, airtightness and stability of the sealing ring are improved; and the leakage of the foam caulking agent caused by abrasion, looseness, deformation, or peeling off is avoided. The foam gun has a simple and reasonable structure, greatly improves the foaming quantity and quality of foam caulking agent, saves energy, has safe and cleaning use, prolongs the service life, has low cost, and is suitable for mass production.

The invention relates to a foam material comprising an esterification modified AC foaming agent and a preparation method thereof, which relates to a foam material and a preparation method thereof. Thepreparation method comprises the following steps: hydrolyzing esterification modified AC foaming agent and azodicarbonamide in an aqueous solution of sodium hydroxide to generate sodium azodicarboxylate, enabling the sodium azodicarboxylate to react with dimethyl sulfate in an aqueous solution in the presence of a phase transfer catalyst to generate the esterification modified AC foaming agent, and the structural formula of the foaming agent is as follows: (shown in the description). Alkoxy groups are introduced into the azodicarbonamide, so that the N-C bond electron cloud density can be reduced, the extent of overlapping is reduced, N-C bonds are easy to break, so that the prepared foaming agent is high in activity, the foaming amount is increased, the decomposition temperature falls ina processing range, and the foaming degree of the foam material can be improved.

A foaming tool comprises a gun body, a liquid inlet valve, a liquid outlet valve, a liquid outlet channel and a switching device, wherein the switching device can open or close the liquid outlet valve, and the liquid outlet valve comprises a liquid outlet nozzle with an outlet, a valve plug and reset springs. The foaming tool is characterized in that a shoulder is arranged at the head of the valve plug and is provided with a convex part, a concave part or a thread. The foaming tool also comprises a sealing element made of plastics. At least part of the plastic sealing element is connected with the convex part, the concave part or the thread into a whole structure, and the plastic sealing element connected with the valve plug into a whole is sealed with the liquid outlet nozzle. The invention effectively prevents and avoids leakage and / or curing of foam caulking agents in the foaming tool, and leakage, burning or explosion dangers of the foam caulking agents or gases, improves the corrosion resistance, tightness and stability of the sealing element, effectively avoids leakage of the foam caulking agents to the outside due to abrasion, looseness, deformation, damage, shedding, corrosion by foam fillers or corrosion by cleaning agents, effectively prevents and avoids blockage of the channel in the foaming tool or the outlet and effectively prevents leakage of the foam fillers or gases due to deformation or fracture of the liquid outlet nozzle. The foaming tool enjoys simple and reasonable structure, safe and clean use, prolonged service life and low cost, greatly improves foaming output and quality of the foam caulking agents, saves the resources and is suitable for mass production.

The invention discloses a prevention and control device for air leakage of an underground goaf. The prevention and control device comprises an air inlet joint, a compressed air pipe, an adding device,a slurry-gel foam generator, a slurry inlet joint, a grouting pipe, a liquid sucking pipe and the like. The adding device utilizes the negative pressure generated by high-speed jet, meanwhile, adds two base materials required for preparing blocking foam, and is connected in a parallel connecting mode, thus the resistance loss of operation of the prevention and control device is decreased, and a paraboloid-shaped multi-layer composite concave mesh is arranged on a fixing hole plate of the slurry-gel foam generator. The prevention and control device only takes the underground existing groutingpressure and compressed air as driving force, electrical equipment during traditional blocking foam preparation is not needed, the essential safety of using of the prevention and control device is improved, and the prevention and control device has the remarkable advantages of simple structure, high reliability and high applicability.

The invention discloses a compound type foaming agent and relates to an additive for a building, in particular to a foaming agent added into concrete. The compound type foaming agent is prepared fromthe following components in percentage by weight: 69-79% of an primary product, 20-30% of N,N'-dinitrosopentamethylamine (DPT), 0.2-0.4% of diglycol and 0.4-0.6% of lauryl alcohol. The compound type foaming agent is prepared on the basis of the original foaming agent, substances with excellent foaming properties are added into the foaming agent, and other additives are added to achieve the effectsof increasing foams, stabilizing foams and regulating. The compound type foaming agent prepared by the method is verified in practical production, and has the outstanding characteristics of being great in foaming amount, small in foam loss, little in strength effect and the like.

The invention discloses a foam gun, which comprises a gun body, a liquid inlet valve, a liquid outlet valve and a switching device, wherein the switching device can open or close the liquid outlet valve; and the liquid outlet valve comprises a liquid outlet nozzle, a valve plug and a reset spring. The foam gun is characterized in that: a sealing ring made of plastic is arranged on the valve plug and is sealed with the liquid outlet nozzle; the plastic sealing ring is made of plastic, is melted by a plastic machine and poured into a plastic mould embedded with at least part of the valve plug; at least part of the formed plastic sealing ring is encircled in a concave part arranged on the valve plug to effectively prevent and avoid the leakage and / or curing of foam caulking agent in the foam gun; the danger of the leakage, burning or explosion of the foam caulking agent or gas is effectively prevented and avoided; the abrasion performance, airtightness and stability of the sealing ring are improved; the leakage of the foam caulking agent caused by abrasion, looseness, deformation or peeling off is avoided. and the foam gun has a simple and reasonable structure, greatly improves the foaming quantity and quality of foam caulking agent, saves energy, has safe and cleaning use, prolongs the service life, has low cost, and is suitable for mass production.

The invention discloses a preparation method and application of a bath fizzer. The bath fizzer is composed of sodium bicarbonate, glucose, magnesium oxide, fumaric acid, essence, glycine, isopropyl myristate, sucrose fatty acid ester and pigments. By means of mixing and pressing, the prepared bath fizzer has the advantages of high foaming amount, short foaming time, long foaming maintaining time and small skin impact force, and has a better bathing effect on human skin.

The invention relates to a foaming gun which comprises a gun body, a charge valve, a discharge valve, a discharge passage and a switching device, wherein the discharge valve can be opened or closed by the switching device; the discharge valve comprises a discharge nozzle, a valve core and an offsetting spring. The invention is characterized in that the valve core is provided with a sealing element which is sealed with the discharge nozzle; the foaming gun also comprises the discharge nozzle and / or a guiding mechanism which is arranged in the discharge passage and is used for aligning the valve core with the outlet of the discharge nozzle, so that the leakage and / or the curing phenomenon emerged of foam sealing agent in the foaming gun are effectively prevented and avoided; the dangers of leakage or fire or explosion emerged in the foam sealing agent or the gases also can be effectively prevented and avoided; the wearability, the leak tightness and the stability are all improved so that the leakage phenomenon of the foam sealing agent due to the abrasion or the looseness or the falling can be effectively avoided; the leakage of the foam sealing agent caused by the abrasion of the head part of the valve core or the blockage of the head part by the inner wall of the discharge nozzle is effectively prevented; the foaming gun has the advantages of simple and reasonable structure, resource conservation, safe and clean use, low cost, great improvement of the foaming amount and quality of the foam sealing agent, prolonged service life, and is suitable for mass production.

The invention discloses a PVC blowing slipper injection mold which comprises a fixed mold base, a movable mold base and a plastic mixing crushing mechanism, wherein the plastic mixing crushing mechanism comprises an accommodating reaction cylinder and a drive motor; the drive motor is connected with a squeezing screw; a thermal insulating panel is arranged at one end of the squeezing screw and isconnected with a displacement air cylinder; a movable sliding block is mounted on the lower surface of the drive motor; a sliding rail is further arranged on the inner wall of the accommodating reaction cylinder; the squeezing screw is sequentially divided into a crushing section, a melting stirring section and a squeezing section from right to left; the accommodating reaction cylinder is providedwith a friction bulge; the accommodating reaction cylinder is provided with subsection heating mechanisms at the melting stirring section and the squeezing section separately; and an air blowing pipeis further arranged on the accommodating reaction cylinder. The subsection heating manner is adopted to avoid the situation that plastic is burnt; an air blowing mechanism is added to increase the foaming quantity; and water-cooling and air-cooling manners are adopted to carry out air blowing foaming treatment and efficient cooling function, so that the injection molding period is shortened and the operating convenience is also improved.

The invention discloses a foam tool, which comprises a gun body, a liquid inlet valve, a liquid outlet valve and a switching device, wherein the switching device can open or close the liquid outlet valve; and the liquid outlet valve comprises a liquid outlet nozzle, a valve plug and a reset spring. The foam tool is characterized in that: a concave part is arranged on the valve plug; a sealing ring is arranged in the concave part and is sealed with the liquid outlet nozzle; at least part of the head of the valve plug is exposed out of the sealing ring to effectively prevent and avoid the leakage and / or curing of foam caulking agent in the foam tool; the danger of the leakage, burning or explosion of the foam caulking agent or gas is effectively prevented and avoided; the abrasion performance, airtightness and stability of the sealing ring are improved; and the leakage of the foam caulking agent caused by abrasion, looseness, deformation or peeling off is avoided. The foam tool has a simple and reasonable structure, greatly improves the foaming quantity and quality of foam caulking agent, saves energy, has safe and cleaning use, prolongs the service life, has low cost, and is suitable for mass production.

The invention provides a foaming tool, comprising a gun body, a liquid inlet valve, a liquid outlet valve, a liquid outlet passage and a switch device; the switch device can lead the liquid outlet valve to be opened or closed; the liquid outlet valve comprises a liquid outlet nozzle with an outlet, a valve core and a recovery spring; the foaming tool is characterized in that a head of the valve core is provided with a sealing part which is made of plastic and a structure that the head of the valve core is connected with the sealing part to form a whole; the plastic sealing part is sealed with the liquid outlet nozzle; at least part of the aperture of the outlet of the liquid outlet nozzle ranges from 0.8mm to 4.5mm; alternatively, the section dimension of the internal hole of the outlet of the liquid outlet nozzle with largest transverse length is 0.8-5mm; therefore, the leakage and / or solidification phenomena of foam filling agent in the foaming tool are / is effectively prevented and avoided; the risk of leakage or combustion or explosion of the foam filling agent or the gas is effectively prevented and avoided; the anti-wearability, sealing performance and the stability of the sealing part are improved; the external leakage of the foam filling agent which is caused by abrasion or loosening or deformation or abscission or corrosion of the foam filling agent or the corrosion of cleaning agent is effectively avoided; the leakage phenomena of foam filling agent or gas which is caused by the deformation or cracking of the liquid outlet nozzle is effectively prevented; the structure of the foaming tool is simple and reasonable, thus greatly improving the foaming quantity and the quality of the foam filling agent, saving the resource, having safe and clean application and low cost, prolonging the service life and being suitable for mass production.

The invention discloses a foam gun, which comprises a gun body, a liquid inlet valve, a liquid outlet valve, a liquid outlet channel and a switching device, wherein the switching device can open or close the liquid outlet valve; and the liquid outlet valve comprises a liquid outlet nozzle, a valve plug and a reset spring. The foam gun is characterized in that: the head of the valve plug is provided with a sealing piece made of metal; the head of the valve plug and the sealing piece are made into an integral structure; the metal sealing piece which is made into the integral structure with the valve plug is sealed with the liquid outlet nozzle; the valve plug is made of stainless steel, stainless iron or copper, so the leakage or curing of foam caulking agent in the foam gun is effectively prevented and avoided; the leakage or curing of the PU foam in the channel in a gun body caused by abrasion, looseness, deformation, peeling off, corrosion of foam filler or cleaning agent is effectively overcome; and the foam gun greatly improves the foaming quantity and quality of foam caulking agent, saves energy, prolongs the service life, and is suitable for mass production.

The invention discloses a preparation method for a compound type foaming agent, relates to a preparation method for an additive for a building, in particular to a preparation method for a foaming agent added into concrete. The compound type foaming agent is compounded from an initial product, N,N'-dinitrosopentamethylamine (DPT), diglycol and lauryl alcohol. The compound type foaming agent is prepared on the basis of the original foaming agent, substances with excellent foaming properties are added into the foaming agent, and other additives are added to achieve the effects of increasing foams, stabilizing foams and regulating. The compound type foaming agent prepared by the preparation method is verified in practical production, and has the outstanding characteristics of being great in foaming amount, small in foam loss, small in strength effect and the like. The preparation method is simple to operate, is easy to control and is relatively high in yield.

The invention discloses a foam tool, which comprises a gun body, a liquid inlet valve, a liquid outlet valve, a liquid outlet channel and a switching device, wherein the switching device can open or close the liquid outlet valve; and the liquid outlet valve comprises a liquid outlet nozzle with an outlet, a valve plug and a reset spring. The foam tool is characterized in that: the valve plug is made of stainless steel, or stainless iron or copper; the head of the valve plug comprises a convex part, a concave part, threads or a concave hole, and also comprises a sealing piece which is made of plastic; at least part of the plastic sealing piece is connected with the convex part, the concave part, the threads or the concave hole into a whole structure; the plastic sealing piece connected with the valve plug into the whole structure is sealed with the liquid outlet nozzle so as to effectively prevent and avoid the leakage and / or curing of foam caulking agent in the foam tool; the danger of the leakage, burning or explosion of the foam caulking agent or gas is effectively prevented and avoided; the abrasion performance, airtightness and stability of the sealing piece are improved; the leakage of the foam caulking agent caused by abrasion, looseness, deformation, fracture, peeling off or corrosion from the foam filler or from cleaning agent of the sealing piece is avoided; the blockage of the channel or the outlet in the foam tool is effectively prevented and avoided; and the leakage of the foam filler or gas caused by the deformation or fracture of the liquid outlet nozzle is effectively prevented. The foam tool has a simple and reasonable structure, greatly improves the foaming quantity and quality of foam caulking agent, saves energy, has safe and cleaning use, prolongs the service life, has low cost, and is suitable for mass production.

The invention discloses a wood-plastic foamed composite material and a preparation method thereof. The invention is characterized in that the composite material is prepared from the following raw materials in parts by weight: 40-50 parts of PVC (polyvinyl chloride) resin, 30-35 parts of light calcium carbonate, 10-20 parts of wood meal, 3.5-4.5 parts of ACM impact resistance agent, 3-4 parts of HL-100 processing assistant, 3-4 parts of liquid barium-zinc composite stabilizer, 1.5-2.5 parts of PE (polyethylene) wax, 0.5-0.7 part of calcium stearate, 0.8-1.2 parts of foaming agent, 1.5-2 parts of epoxy soybean oil, 0.5-1.0 part of sodium bicarbonate and 15-25 parts of recovered PVC waste. The preparation method comprises the following steps: proportionally preparing materials, heating, mixing, cooling, carrying out extrusion forming, and carrying out random inspection. Compared with the existing wood-plastic foamed composite material, the wood-plastic foamed composite material disclosed by the invention has the advantages of high shock strength, low production cost, favorable heat stability, high processibility and high and balanced foaming capacity.

The invention discloses a PVC blowing slipper injection mold which comprises a fixed mold base, a movable mold base and a plastic mixing crushing mechanism, wherein the plastic mixing crushing mechanism comprises an accommodating reaction cylinder and a drive motor; the drive motor is connected with a squeezing screw; a thermal insulating panel is arranged at one end of the squeezing screw and isconnected with a displacement air cylinder; a movable sliding block is mounted on the lower surface of the drive motor; a sliding rail is further arranged on the inner wall of the accommodating reaction cylinder; the squeezing screw is sequentially divided into a crushing section, a melting stirring section and a squeezing section from right to left; the accommodating reaction cylinder is providedwith a friction bulge; the accommodating reaction cylinder is provided with subsection heating mechanisms at the melting stirring section and the squeezing section separately; and an air blowing pipeis further arranged on the accommodating reaction cylinder. The subsection heating manner is adopted to avoid the situation that plastic is burnt; an air blowing mechanism is added to increase the foaming quantity; and water-cooling and air-cooling manners are adopted to carry out air blowing foaming treatment and efficient cooling function, so that the injection molding period is shortened and the operating convenience is also improved.

The invention discloses a one-time firing foamed ceramic decorative plate, which comprises a foaming layer, a sealing layer and a surface decoration layer which are sequentially arranged from bottom to top. It is used to close the pores on the surface of the foaming layer. The foaming layer is a foamed ceramic with a single formula, and the sealing layer is a make-up soil layer, or the sealing layer is a non-foaming ceramic base layer and a make-up soil layer, and the non-foaming ceramic base The layer is located between the foam layer and the make-up soil layer, and the surface decoration layer is a glaze layer. Correspondingly, the present invention also discloses a preparation method of the above-mentioned decorative plate, including ball milling, staling in a slurry tank; spraying granulation, staling in a silo; pressing into a green body and drying; applying a sealing layer; applying a surface decorative layer; firing. The sealing layer can improve the flatness of the product and enhance the decorative effect of the product. The foamed ceramic decorative plate of the present invention is easy to clean. The foam layer, the sealing layer and the surface decoration layer are fired at one time, and the bonding between the layers is firm.

The invention discloses a milk foaming machine with multi-axis stirring. The main body consists of a first transmission box, a second transmission box and a foaming box from top to bottom. The side of the foaming pipe in the foaming box is provided with stirring blades. , when the air is passed into the milk through the foaming tube to foam, the milk is stirred to improve the foaming efficiency. In addition, during the rotation of the foaming tube, along with the rotation of the guide turntable, the L-shaped push rod pushes the foaming The foam tube slides up and down to increase the range of air infiltration into the milk, making the milk froth fully delicate and durable.

The invention provides a modified PP foaming material. The foaming material is characterized by comprising the following raw materials: PP, polycarbonate, silica gel, a maleic anhydride graft copolymer, calcium carbonate, hydrogenated naphthenic oil, glycerin and a special foaming agent. The foaming material has a density of less than 1.02 g / cm<3> and a thermal conductivity coefficient of <= 0.027 W / m*K. The product provided by the invention has high softness, times of resistance to bending of up to 2500-3000 times, a high heat-deformation-resistant temperature, high-temperature resistance of 140-160 DEG C, a low-temperature-deformation-resistant temperature of up to -35 DEG C to -40 DEG C and tensile strength of up to 240-270 Mpa.

The invention relates to a multifunctional unmanned aerial vehicle for wedding celebration. The multifunctional unmanned aerial vehicle comprises a fuselage, and a rotor wing mechanism, a rotary mechanism, a bubble mechanism and a flower petal mechanism which are arranged on the fuselage, wherein the rotary mechanism comprises a supporting column, a first round gear, a second round gear, a first motor, a first supporting rod and a second supporting rod; the bubble mechanism comprises a shell body and a second motor, a screw rod, a sleeve ring, an extruding block, a liquid storage tank, a first guide pipe, an air blower and a spraying nozzle assembly which are arranged on the shell body; the flower petal mechanism comprises a third motor, a rotary shaft, a flower petal box, a filtering screen and a stirring unit. According to the multifunctional unmanned aerial vehicle for the wedding celebration, provided by the invention, the flower petal mechanism and the bubble mechanism are ascended into the air through the rotor wing mechanism; bubbles are blown out through the bubble mechanism and the bubble mechanism can be used for blowing out a plurality of groups of bubbles through a flow divider, so that the bubble production amount is increased; flower petals are scattered in the air through the flower petal mechanism and the irradiation of a flash lamp is matched, so that a beautiful effect is realized and a flower falling effect is more vivid.

The invention discloses a foam gun, which comprises a gun body, a liquid inlet valve, a liquid outlet valve, a liquid outlet channel and a switch device, wherein the switch device can open and close the liquid outlet valve; and the liquid outlet valve comprises a liquid outlet nozzle with an outlet, a valve plug and a reset spring. The foam gun is characterized in that: a head of the valve plug is provided with threads or a concave part or a convex part; the foam gun also comprises a sealing ring which is connected with the threads or the concave part or the convex part arranged on the head of the valve plug into an integral structure; the sealing ring connected with the valve plug into a whole is sealed with the liquid outlet nozzle; at least partial aperture of the outlet of the liquid outlet nozzle is between 1.3 and 3.0 millimeters, or an inner hole of the outlet of the liquid outlet nozzle has the section with the maximum horizontal length between 1.3 and 3.5 millimeters so as to effectively prevent and avoid the leakage and / or curing of a foam caulking agent in the foam gun; the dangers such as leakage or burning or explosion of the foam caulking agent or gas are effectively prevented and avoided; the wear resistance, airtightness and stability of the sealing ring are improved; the leakage of the foam caulking agent because the sealing ring is worn, loosened, deformed, damaged, fallen off, or corroded by the foam caulking agent or a cleaning agent is effectively avoided; a phenomenon that the channel or the outlet in the foam gun is blocked is effectively prevented and avoided; and a phenomenon of leakage of the foam caulking agent or the gas due to deformation or fracture of the liquid outlet nozzle is effectively prevented. The foam gun has a simple and reasonable structure, greatly improves the foaming quantity and quality of foam caulking agent, saves energy, has safe and cleaning use, prolongs the service life and has low cost.