81results about How to "Overcome the defect of single function" patented technology

The invention relates to a high-efficiency phase change energy storage microcapsule with a thermochromic function, and a preparation method thereof. The core of the microcapsule is a high-grade aliphatic hydrocarbon, alcohol, acid or lipid organic phase change material, and the wall of the microcapsule is a polymer formed by surface modified thermochromic powder and an organic polymer monomer. The preparation method of the microcapsule comprises the following steps: carrying out surface modifying treatment on the thermochromic powder with a coupling agent; mixing the surface modified thermochromic powder, the organic phase change material and the organic polymer monomer as an oil phase, and adopting an aqueous solution of a surfactant as a water phase; and adding the oil phase to the aqueous phase, and carrying out high speed emulsification and polymerization to form the high-efficiency phase change energy storage microcapsule with a thermochromic function. The preparation method has the advantages of simple preparation process, and easy control of the reaction process; and the material has the advantages of wide thermochromic temperature range, abundant color, high heat storage ability and long recycling life, and is hopeful to be applied in the fields of chromogenic indication, coatings and building materials.

The invention relates to an environmentally-friendly antibacterial powder coating, belonging to the technical field of coating material and aiming to solve the technical problems that the antibacterial function of the coating in the prior art is single and the antibacterial capacity ceases to be effective quickly. The environmentally-friendly antibacterial powder coating mainly comprises the following raw materials by weight: 30-40% of polyester, 30-40% of epoxy resin, 0.5-1.5% of a leveling agent, 0.5-1.5% of a brightening agent, 8.0-16% of an anion generating agent, 8.0-12% of a coupling agent, 2.0-4.0% of an antibacterial agent and 3.0-6.0% of a cross-linking agent. The coating can generate anions of about 1,000 / cm<3> and has a good antimicrobial effect, the antibacterial rate of more than 95% and the multiple effects of causing less pollution to the environment.

The invention relates to an intelligent wristband. The intelligent wristband comprises a wristband main body, a first side end and a second side end which are integrally formed through injection moulding, wherein the first side end and the second side end are respectively positioned on the two ends of the wristband main body; a USB flash disk is arranged in the first side end through injection moulding; a conductive structure is arranged on the surface of the second side end through injection moulding; the second side end is used for insertion into a USB interface of an external device, and enables the conductive structure to establish a conductive path with a corresponding conductive contact piece in the USB interface; the conductive structure is electrically connected with the USB flash disk, so that the USB flash disk can be in communication with the external device normally after the second side end is inserted into the USB interface. According to the intelligent wristband, after the second side end is inserted into the USB interface of a computer or other devices, the USB flash disk arranged in the first side end through injection moulding can be in communication with the corresponding device through the second side end, so that the intelligent wristband has the performances of the USB flash disk, and therefore, the defect that the traditional intelligent wristbands are single in function is overcome.

The invention relates to a hydrogel dressing, a preparation method thereof, a multifunctional nano-composite dressing, and a preparation method and application of the multifunctional nano-composite dressing, and relates to the technical field of medical dressings. The technical problems that an existing gel dressing is usually single in function, difficultly covers a whole wound repairing period,is poor in antibacterial performance and difficultly achieves satisfactory effect are solved. Modified chitosan and functionalized polyethylene glycol are utilized to construct the multifunctional hydrogel dressing, and the dressing has good biocompatibility, anti-inflammatory property, proper skin adhesion and certain hemostasis performance and can meet various complex clinical requirements. Photo-thermal nano material and antibacterial drugs are carried in a net structure of the hydrogel dressing, so that the multifunctional nano-composite dressing is provided, and the antibacterial propertyof the dressing is improved. The multifunctional nano-composite dressing can play an obvious promoting role in a treatment period and a prognosis period of a healing process of a bacterially infectedwound, and deficiencies of current commercial dressings are overcome.

The invention discloses tea drink with an anti-radiation effect and a preparation method thereof. The tea drink is prepared from the following preparation raw materials in parts by weight: 2-5 parts of alga, 5-10 parts of kelp, 20-30 parts of green tea, 10-20 parts of coix seed, 15-40 parts of spina date seed, 4-8 parts of Chinese magnoliavine fruit, 10-15 parts of dahurian rose fruit, 5-8 parts of liquoric root, 10-20 parts of vitamin C, 6-9 parts of vitamin E and 10-30 parts of sucrose. The materials selected for preparing the tea drink are special, i.e., the green tea and the traditional Chinese medicines can eliminate the free radicals in the body, enhance the immune function in the body and delay the aging, and the kelp and the alga can discharge radioactive substances in the body and have the function of treating both symptoms and root causes; the tea drink has an obvious effect through the compatibility of the raw materials and overcomes the defect of single effect of the conventional health-care tea.

The invention discloses a helmet provided with a multifunctional head strap. The helmet comprises a helmet main body, a control circuit board which is integrally formed on the helmet main body, the head strap arranged on the inner side of the helmet main body and bone conduction earphones which are arranged on the head strap, wherein the bone conduction earphones are electrically connected to the control circuit board; each of the bone conduction earphones comprises a vibrating sheet and a driving device for driving the vibrating sheet to vibrate; the vibrating sheets are fixedly arranged on the head strap; a regulator is arranged on the head strap for regulating the tightness degree of the head strap; and the driving devices are capable of driving the vibrating sheets to vibrate, so that the head strap is synchronously vibrated indirectly, and a bone conduction effect is caused in the vibrating process of the head strap. The helmet disclosed by the invention is good in sound effect; the helmet is capable of making a sound without vibration of an air medium, and various frequency bands are quite clear in sound quality. The resonance-type riding helmet disclosed by the invention has many practical functions, and the defect of a conventional helmet, which has a single function, is overcome; and the helmet is strong in practicability and is relatively strong in significance of popularization.

The invention provides a boxing glove and a movement data processing method and device. The boxing glove comprises a boxing glove body, and a movement data collector, a communication module and a battery are arranged on the boxing glove body, wherein the movement data collector is used for collecting movement data of a boxer; the communication module is connected with the movement data collector and the external movement data processing device and used for transmitting the movement data collected by the movement data collector to the movement data processing device; the battery is electrically connected with the movement data collector and the communication module and used for supplying power to the movement data collector and the communication module. The movement data processing method and device are used for the boxing glove. By the adoption of the technical scheme, the movement data of the boxer can be collected and displayed on the movement data processing device side, so that the functions of the boxing glove are enriched.

The invention relates to a water dispenser with ferro-manganese purification function, comprising a shell and a foundation bed, a movable water storage tank is arranged above the shell, the bottom part of the movable water storage tank is provided with an aeration plate connected with an air pump, a liquid level meter is arranged on the inner wall of the movable water storage tank, the liquid level meter is connected with a time controller, and the liquid level meter and the time controller control the starting of the air pump and the aeration time; the bottom part of the water storage tank is connected with the input end of a refined activated carbon filter element by a connecting pipe, the output end of the refined activated carbon filter element is connected with the input end of a membrane filter, one path of the output end of the membrane filter is connected with a normal temperature outlet switch through a normal temperature water pipe, and the other path thereof is connected with the inlet end of the bottom part of the membrane filter, and the water outlet at the upper end of a heating tank is connected with a hot water switch by a hot water pipe. The water dispenser has the beneficial effects that: water quality purification and cold and hot water supplying are combined, the structure is compact, the sealing property is good, no water leakage and overflow exist, and the water dispenser is suitable for drinking water areas with organic pollution and ferro-manganese pollution.

The invention relates to a preparation method for an antibacterial liquid-absorbing gauze, which belongs to the field of preparation of medical dressings. According to the invention, a quaternary ammonium salt group is introduced onto a cellulose molecular chain of a degreased gauze through an epoxide ring-opening or nucleophilic substitution reaction, so polycation characteristics of cellulose of the gauze are increased, and antibacterial properties of the gauze are improved; through controlling of a mol ratio of a hydroxyl group to a quaternary ammonium salt on the cellulose molecular chain of the degreased gauze and reaction conditions, the degree of substitution of the quaternary ammonium salt on the cellulose molecular chain is in a range of 5 to 80%, so the reacted gauze has high antibacterial properties and high liquid absorption performance and can maintain the basic form of yarns after absorption of liquid. The antibacterial liquid-absorbing gauze prepared by using the preparation method provided by the invention overcomes the defect of a single function of a conventional medical gauze, is applicable to an infectious wound with a great amount of exudate or an infectible wound and exerts the effects of killing of bacteria on the surface of the wound and absorption of exudate on the surface of the wound. The preparation method for the antibacterial liquid-absorbing gauze has the advantages of easiness, low cost and easy industrial production.

The present invention relates to the field of living furniture, in particular to a massage chair, comprising a base, and a seat body movably arranged on the base; the seat body is connected to the base through a swing device, which is a non-electric swing device; the swing The device includes a lower base, an upper base, an elastic assembly for adjusting the hinge angle between the upper base and the lower base, and a first limiting part, and the elastic assembly and the first limiting part are respectively located on both sides of the rotating shaft. Compared with the prior art, the massage chair proposed by the present invention realizes the tilting and rocking function of the chair body due to the non-electric rocking device installed under the seat body, improves the comfort, flexibility and fun of the massage chair, and overcomes the It overcomes the defect of single function of the traditional massage chair, and adopts the non-electric swing device with simple accessories. First, it is convenient for maintenance and lowers costs. Second, it is convenient for users to operate. Therefore, it can be used for more consumer groups and can be used for home and office use. , with a better market prospect.

The present invention discloses a fan with a moisturizing function, and comprises a substrate and a ventilating device that is arranged on the substrate, wherein, the front end of the ventilating device is provided with an atomization motor; the front end surface of the atomization motor is provided with an atomization disc; the front end of the atomization disc is provided with an atomization wheel; the atomization wheel I fixed on an output shaft of the atomization motor through a safety protection device; the periphery of the atomization disc is provided with a tooth-shaped groove; a water spraying device with a spraying nozzle is arranged on the atomization disc; the water outlet of the spraying nozzle aims at and is close to the inner surface of the atomization wheel; the water inlet of the spraying nozzle is connected with a sealed water tank through a water inlet pipe; one end of the water inlet pipe is connected with a water pump that is arranged inside the sealed water tank; when in operation, the water pump pumps out the water inside the water tank; the water is conveyed to the spraying nozzle through the water inlet pipe; the spraying nozzle sprays the water to the atomization wheel to be atomized, and the atomized water is blown in the air by the ventilating device through the tooth-shaped groove, so that the fan can perform the favorable atomization cooling while being used as the ventilation and heat radiation, thereby increasing the moisture and purifying the air in the room.

The invention discloses composite quaternary ammonium salt disinfectant fluid containing traditional Chinese medicine extract components, and relates to the technical field of disinfectant fluid. Thedisinfectant fluid is prepared from the following raw materials in parts by weight: 90 to 110 parts of didecyl dimethyl ammonium bromide, 20 to 30 parts of dimethyl octadecyl [3-(trimethoxysilyl) propyl] ammonium chloride, 10 to 20 parts of dodecyl dimethyl benzyl ammonium bromide and 90 to 110 parts of a traditional Chinese medicine. The raw materials are blended together according to different proportions, and all the components have a synergistic effect, so that the defect of single function of a single variety or a simple mixed disinfectant is overcome, and various bacteria, fungi, sporesand viruses can be thoroughly killed; the product is safe, nontoxic and non-irritant to human bodies, is convenient to use and can be used by directly diluting with water; disinfection and cleaning are completed once; no corrosion is caused to equipment, no harm is caused to the environment, and degradation is realized.

The invention relates to a tool, in particular to a multifunctional hand tool; a shovel plate and a chopper of the hand tool are fixedly connected to form a tool head; an operation location hole and a tool head rotating shaft hole are arranged on the tool head; the font part of a grab handle is provided with a U-shaped slot for the chopper to be horizontally hidden, the rotating shaft hole and a pin roll hole; the invention is also provided with the rotating shaft hole used for mounting a spanner; the tool head is articulated with the grab handle by a rotating shaft in the rotating shaft hole; a location pin roll is arranged in the pin roll hole; the spanner is connected with the grab handle by the rotating shaft in the rotating shaft hole; the outside of the grab handle is provided with a protective hood. The invention fixedly connects the chopper and the shovel plate to form the tool head; the tool head is connected with the grab handle by the rotating shaft; simultaneously, the front part of the grab handle is provided with the U-shaped slot, the chopper is horizontally hidden in the U-shaped slot and is located by the pin roll and bolts. The chopper and the shovel plate are connected by combining the rotating shaft and have multiple functions of shoveling, chopping, sawing, hacking, cutting, scraping, unclenching and digging, etc. The tool of the invention is suited to be used in agricultural planting, garden usage, project construction, geological exploration, field stud and field rescue, etc.

An instant heating shower device comprises an outer shell, an instant electric water heating device, a sprinkler and a water inlet valve, wherein the instant electric water heating device is arranged in the outer shell. The instant heating shower device is characterized in that a radiator cavity is formed in the bottom of the outer shell, a heat dissipation hole is formed in the outer shell and communicated with the radiator cavity, and a heating device is arranged in the radiator cavity. The instant heating shower device is further characterized in that the heating device is a water circulating type radiator or a steam type radiator, or the heating device is an electric heating unit. Due to the structure, the instant heating shower device can be used for heating before a shower and during the shower, the defect that an existing shower device in the prior art has a single function is overcome, and the instant heating shower device is especially suitable for the situation that a central heating system is not in operation in a house when the temperature is low in autumn and spring.

The invention provides a nanofiber floating ball for a reservoir. The nanofiber floating ball comprises an upper shell body and a lower shell body which are fixedly installed together to form a hollow spherical shell. The hollow spherical shell is filled with nanofibers. The upper shell body and the lower shell body are evenly provided with a plurality of circular through holes. The outer surface of the upper shell body and the outer surface of the lower shell body are white. According to the nanofiber floating ball, evaporation loss of a large amount of water can be effectively prevented, water resources can be fully and reasonably used, the economic benefits are high, and the social benefits are obvious. In addition, the nanofiber floating ball is simple in structure, low in manufacturing cost, convenient to apply and popularize, broad in application range, capable of being used for rivers, lakes and reservoirs with large headwater areas and ponds and impounding reservoirs with small headwater areas, long in service life and good in reservoir purifying and cleaning effect.

The invention discloses a multifunctional anticancer nanometer medicine carrying controlled-release vesicle which structurally comprises an outer shell, an inner core and a sandwich layer, wherein the outer shell of the vesicle is formed by the self-aggregation bi-molecule layer of reagent A; the inner core is photo-thermal therapy reagent B, capable of adjusting and controlling light absorption wavelength coverage and is buried in the cavity of the multifunctional anticancer nanometer medicine carrying controlled-release vesicle; active chemotherapy anti-cancer molecular reagent C is filled in the crack between the outer shell and the inner core; the reagent A is PDT (Photodynamic Therapy) anticancer material; the reagent B is PET (photo-thermal therapy) anticancer material; and the reagent C is chemotherapy anti-cancer material. The invention firstly effectively composites medicine carrying controlled release, PDT and PET in the nanometer vesicle, realizes multiple functions, and overcomes the defect of single function in the prior art, thereby improving the tolerance of patients in anticancer treatment and effectiveness and durability in anti-tumor treatment and being simple in preparation process and easy in operation.

The invention discloses a movable type solid-liquid separation treatment device of feces. The movable type solid-liquid separation treatment device of feces comprises a double box vacuum liquid pumping system, a liquid dosing system, a transporter, a multi-function box, a belt type extrusion filtration system, a generator set, a solid output hopper, a rack, a belt type primary filtration system and a multi-stage secondary filtration system. The movable type solid-liquid separation treatment device of dung and dirt has characteristics in that the efficiency is high, the mobile performance is superior, the cost is low, solid in the feces can be separated and formed into fertilizers, and liquid meets discharge standards; the device overcomes the defects that the existing waste water and sludge sanitation equipment has single function and multiple processing functions. The feces, from which the residues are removed, are recycled as a fertilizer and is easy to transport. The feces can be directly used as an organic fertilizer, as fertilizers for a fruit tree, forest trees and the organic fertilizer, and is a good tonic for botanical garden and flower beds and an excellent nutrient for hatching bamboo shoots, and a good feed for chickens, ducks and fishes. And therefore, additional economic benefits are obtained.

The invention provides a pillow with a function of treating cervical spondylosis; the pillow is composed of a pillow body and a packing material in the pillow body; the pillow body is dumbbell shape, the middle of which is thin and the two ends thereof are wide, and the width of the two ends is 1.5 to 3 times of the middle width. The pillow body is internally provided with a Chinese herbal medicine bag which can treat the cervical spondylosis. The pillow body adopts a dumbbell structure which is designed according to the biomechanics theory of human body and normal physiological curvature of cervical vertebra, thereby being capable of easing symptom of the cervical spondylosis; wherein the inner part of the Chinese herbal medicine bag is made of pure Chinese herbal medicines which have non-toxic side effect and can treat both the symptoms and root causes, the healing efficacy is remarkable, and the symptoms of dizzy and pain, limbs numb and the like are disappeared rapidly, no rebound phenomenon appears after the cervical spondylosis is cured, the pillow is usable for various cervical spondylosis, cervical slipped disc, cervical vertebra myofascial pain syndrome, cervical vertebra strain, cervical vertebra hyperosteogeny, scapulohumeral periarthritis and the like, and can control the cervical vertebra hyperosteogeny and has a function of health-care treatment for the cervical vertebra.

The invention discloses a multifunctional bench for parks. A solar panel can convert solar energy into electric energy to supply power to electricity requiring portions of the bench, and if energy converted from the solar energy is insufficient for the whole bench, electric energy required by the whole bench can be supplied directly. Due to light deficiency at night, a floor light illuminates in a time period in presence of people to enable pedestrians to clearly observe surroundings of the bench. A light tube provides light for pedestrians close to the bench and does not illuminate in daytime due to control of a photoswitch. A loudspeaker plays music according to instructions sent by a park command center. A water pump which is powered by the electric energy is used for providing a dynamic force for water stored in the bench, so that plants in a certain range can be watered by the water stored in the bench under sufficient pressure through a water pipe and a nozzle. A water tap is an outlet of drinking water treated by a water filtering, sterilizing and storing device. A USB (universal serial bus) interface of a USB device is used for charging of mobile phones.

The invention discloses a surface treatment device for nonferrous metal study, and relates to the technical field of nonferrous metals. A base is included. A supporting base is fixedly arranged on thelower surface of the base, and the position, located at the inner side position of the supporting base, of the lower surface of the base is fixedly provided with universal wheels. Fixing columns arefixedly arranged at the four corners of the upper surface of the base, a cleaning tank is fixedly installed at the positions, at the inner side positions of the fixing columns, of the upper surface ofthe base, and the position, located at one side position of the cleaning tank, of the upper surface of the base is provided with a drying tank. The surface treatment device is simple in structure, scientific, reasonable and low in cost. The design integrates cleaning, drying and electroplating, the defect about single functions of a traditional electroplating device are overcome, the advantage ofmultiple functions is achieved, the machining procedures of the surface treatment device are reduced, and the work efficiency is effectively improved; through an arranged sliding mechanism, the purpose of left-right movement of a net frame can be achieved; and meanwhile, through actions of an arranged lifting air cylinder, the up-down movement of the net frame can be achieved.

The invention discloses a logistics palletizing truck with multiple clamping surfaces and a carrying palletizing method thereof. A single-shaped mechanical claw facing objects with different shapes and surface roughness is increasingly unable to meet the requirements. The logistics palletizing truck with the multiple clamping surfaces comprises a traveling mechanism, a clamping mechanism, a loading mechanism, a battery, a voltage stabilizing module and a motor driving module, wherein a grabbing mechanism comprises a mechanical arm assembly, a tripod head rotating assembly and a clamping assembly; the tripod head rotating assembly comprises a tripod head seat, a rotary table and a bottom servo; the mechanical arm assembly comprises electric joints, a top servo, and a top support; and the clamping assembly comprises a clamping shell, a bidirectional lead screw, sliding blocks, a switching type single jaw assembly, a switching driving assembly and a clamping driving assembly. According tothe logistics palletizing truck, the clamping mechanism can adapt to the objects with different shapes, sizes and surface roughness through switching the working surfaces of the mechanical claw, andthe defect that the function of a traditional mechanical claw is single is overcome, so that the clamping mechanism can adapt to various working environments.

The invention discloses a multifunctional martial art instrument. The multifunctional martial art instrument comprises a spear head, a first spear rod, a second spear rod, a first connecting rod, a connecting pipe and a chain, wherein the first connecting rod is arranged at the tail end of the spear head, and the axis of the first connecting rod is collinear with the axis of the spear head; a first external thread is arranged on the outer wall of the first connecting rod, and a first groove is formed in the end face of one end of the first spear rod; a first internal thread matched with the first external thread is arranged on the inner wall of the first groove, and the first connecting rod is in threaded connection with the end, provided with the first groove, of the first connecting rod;a second groove is formed in the end face of the other end of the first spear rod, and a second internal thread is arranged on the inner wall of the second groove; the end face of one end of the second spear rod is provided with the connecting pipe, and the axis of the connecting pipe is collinear with the axis of the second spear rod; a second external thread matched with the second internal thread is arranged on the outer wall of the connecting pipe, and the end, provided with the second groove, of the first spear rod is in threaded connection with the connecting pipe; one end of the chainis connected with the bottom wall of the second groove, and the other end of the chain penetrates through the connecting pipe and is connected with the second spear rod.

The invention discloses a printing fabric production process, and relates to the technical field of textile processing. The printing fabric production process includes the working procedures of preparing base fabric, desizing and boiling, dyeing, high-temperature setting, printing, re-setting treatment and the like. The invention further discloses an antibacterial microcapsule preparation method,which realizes uniform coating of particles, lightens the agglomeration tendency easy to occur in conventional means, improves the uniformity of microcapsules, and the obtained printed fabric has a good antibacterial effect, good color fastness, uniform color, high use performance and a good market prospect.

The invention discloses a train illuminator illumination angle testing device and a testing method thereof, relates to the technical field of the train vehicle manufacturing, and solves problems thata current urban subway headlamp illumination angle test is performed by using manual measurement so that a center point of a light beam is not accurately positioned, a detection process is not standard and the like. The train illuminator illumination angle testing device comprises a longitudinal measuring ruler, a horizontal measuring ruler, a moveable block and a sliding aim point. The testing device can be suitable for headlamp position conditions of various vehicle types, has two-dimensional space measurement functions of longitudinal and horizontal measurement on the basis of center pointpositioning, and is capable of overcoming a defect of a single function of a general measuring tool. At the same time, the testing device is provided with a clamping and fixing device suitable for various rail conditions, so the headlamp illumination angle test is more convenient and accurate, product quality is effectively controlled, and traffic safety is guaranteed. The testing device is rational in structure, stronger in adaptation and universality, capable of performing two-dimensional space adjustment according to the different vehicle types and principles, and has a function of bi-directional center point positioning. The testing method is simple, easy to implement.

The invention discloses automated grinding and polishing equipment for processing plate type curved glass structural members. The equipment comprises a work table, a bearing device which is used for bearing the structural members and arranged on the work table, and at least one grinding and polishing device which is arranged around the bearing device on the work table, wherein the grinding and polishing device comprises a rotating shaft I, at least one grinding wheel or polishing wheel which is mounted on the rotating shaft I, a first driving device which is used for driving the grinding wheel or the polishing wheel to rotate in a horizontal direction, and a regulating device which is used for regulating the position of the grinding wheel or the polishing wheel in horizontal and vertical directions. The invention provides the automated grinding and polishing equipment for processing the plate type curved glass structural members. The structure of the equipment is simple, and the equipment is convenient to operate; the grinding processing and the polishing processing can be performed on the structural members on the same equipment at the same time; and through automated processing of the structural members, the work efficiency is greatly improved, and the processing precision of the structural members is improved.

A four-dimensional preschool education chair under a virtual reality environment is disclosed. The four-dimensional preschool education chair under the virtual reality environment comprises a seat (12). A bottom end of the seat (12) is provided with a motion platform (1). A positive surface of the motion platform (1) is provided with an operation screen (2). A multifunctional table plate (4) is placed on an upper surface of armrests of the seat (12). Inner sides of the armrests of the seat (12) are provided with air supply outlets (3). A display screen (5) is hung right above the multifunctional table plate (4). A top end of the display screen (5) is provided with one end of a telescopic connecting rod (9). The other end of the telescopic connecting rod (9) is connected to a backboard topend of the seat (12). The invention discloses the four-dimensional preschool education chair.

A manual grab for grabbing various articles and food is composed of a handle, a clamping head consisting of a main body, a clamp core, multiple clamping jaws hinged to said clamp core and tension springs between said clamping jaws and clamp core, and a lever installed to handle.

The invention discloses a remote-controlled air cushion lifeboat, which comprises a hull, an airbag, a life buoy, a handle, a booster fan, a second engine and a thrust fan, the airbag is arranged at the bottom of the hull, and the hull is provided with a booster fan and a thrust fan , the lift fan is connected with the first engine pulley through a belt, the second engine is fixed on the base, the thrust fan is fixed on the base through a bracket, and is connected with the second engine through a belt, the front part of the hull And middle part is provided with handle, described life buoy is installed on the outside of hull, and described hull stern is equipped with control switch and signal receiver. The present invention utilizes the pad lift principle of the hovercraft, through remote control, can realize long-distance surface rescue, greatly reduces the rescue time, overcomes the defect of single function of the traditional lifeboat, the hovercraft has strong maneuverability and flexibility, and the hull has a smaller density than water Made of high-quality materials for easy portability.

The invention discloses a massage chair which comprises bottom feet, a chair frame, a swing device and a chair shell. The chair frame is mounted on the bottom feet through the swing device; the swingdevice comprises a lower tray assembly, an upper tray assembly, a left torsional spring and a right torsional spring; the lower tray assembly and the upper tray assembly are hinged through a connecting shaft; the left torsional spring and the right torsional spring are respectively arranged at both ends of the connecting shaft in a sleeving mode; the upper ends of the left torsional spring and theright torsional spring are pressed against the upper tray assembly, while the lower ends are pressed against the lower tray assembly; the upper tray assembly is fixedly connected with two transversesupporting frames located at the bottom; and the lower tray assembly is mounted on the bottom feet. According to the technical scheme, the transverse left torsional spring and the transverse right torsional spring which are located between the upper tray assembly and the lower tray assembly are adopted for control, and compared with a vertical spring in a traditional non-electric swing device, which is located on the lower side of the lower tray assembly and used for resetting the chair shell, occupy a smaller space and can adapt to various specifications of existing massage chairs better.