48results about How to "Appropriate environment" patented technology

The invention discloses an aviation radio anti-interference broadband transmission method with the variable gain and the adaptive broadband. According to the method, the frame format is well designed, the suitable code pattern is selected, the channel estimation technology, the anti-interference synchronization technology, the spread spectrum communication technology, the digital broadband transmission technology and the channel equalization technology are combined, innovative design is carried out according to the characteristics of aviation wireless channels, and therefore the method is high in destroy-resistant and fault-tolerant ability and derating design ability and good in broadband transmission performance.

The invention relates to the technical field of mobile terminals, and discloses a method and a system for adjusting volume and brightness based on a proximity sensor. The method comprises the steps as follows: a proximity sensor in a mobile terminal acquires the distance from an occluded object to a touch screen, and judges whether the distance value is within a preset distance range; and when proximity sensor judges that the distance value is within the preset distance range, the parameter values of the mobile terminal are adjusted to values corresponding to the distance value according to the corresponding relationship between the preset distance range and the parameters of the mobile terminal, wherein the parameters of the mobile terminal include volume, screen brightness and flash light brightness. Whether the volume, screen brightness and flash light brightness are adjusted automatically is judged according to whether the distance value is within the preset distance range, so that the adjusted parameters are more suitable for the use environment of users, and convenience is brought to users.

The invention discloses a lawn cropper, wherein a protective shell is installed on the surface, and an accumulator and a motor are installed in the protective shell; a motor shaft of the motor is vertically downward and extends to the lower side of the platform, and a cutter head on which cutters used for clipping lawn are installed is installed on the part of the motor shaft below the platform; a forward walking wheel is connected with the bottom end of the motor shaft via an extending column, and the extending column is rotationally installed at the bottom end of the motor shaft via a bearing; a grass collection box is installed on the bottom surface of the platform at the rear part of the butter head, and the grass collection box comprises a grass collection opening with an inclined front end face; rear walking wheels are installed at two sides of the grass collection box; a sliding boss is arranged on the motor shaft along the length direction of the motor shaft, and an assembling hole used for assembling the motor shaft is correspondingly formed in the center of the cutter head, and a sliding groove used for assembling the sliding boss in a sliding manner is formed in the hole wall of the assembling hole; a manual push rod is installed on the platform, and a solar cell panel is assembled on the front surface of the manual push rod.

The invention discloses an antifouling coating used for ships. The antifouling coating comprises the following raw materials in parts by weight: 63-66 parts of castor oil modified waterborne polyurethane, 24-27 parts of phenolic resin, 12-15 parts of polytrifluorochloroethylene, 11-14 parts of powdery ethylene propylene diene monomer, 15-18 parts of active calcium silicate, 5-7 parts of ultrafine calcium carbonate, 4-5 parts of precipitated barium sulfate, 11-13 parts of sepiolite powder, 1.1-1.4 parts of aluminium zirconium coupling agent TL-4, 0.2-0.5 part of curing agent, 0.5-0.8 part of mildew preventive and 20-23 parts of pigments. The antifouling coating has excellent hydrophobicity, oleophobicity, antifouling property and corrosion resistance, is difficult for marine organisms to adhere to, and is suitable for the service environments of ships.

The invention relates to fixed pipeline equipment, and particularly relates to a water dividing and collecting device bracket. The plastic bracket of the water dividing and collecting device comprises an adjusting rack (1), an upper fixing rack (2) and a lower fixing rack (3), wherein the upper fixing rack (2) and the lower fixing rack (3) are adjustably fixed on the adjusting rack (1); a row of necks (10) are formed in the adjusting rack (1); the front end part (12) of each neck (10) forms an inverse calabash shape on the whole; a reducing structure (14) exists on a waist part (13) of the inverse calabash shape; a first hook post (21) is arranged at the bottom of an upper bracket (20) of the upper fixing rack (2); fixed matching is achieved by the first hook post and the necks (10) in the fixing process. According to the plastic bracket of water dividing and collecting device, which is disclosed by the invention, the main body is made of a plastic material, and is lighter and more applicable to an operating environment; the plastic bracket is integrally molded in an injection manner, fewer in component and convenient to process; the adjusting rack and the fixing rack are connected by adopting a buckle structure, and fast to fix; the fixing rack can be adjusted up and down, more flexible to install, practical and reasonable in overall structure, and strong in exploitativeness.

The invention relates to an LED (light-emitting diode) lamp panel adopting COB (Chip On Board) technology, comprising a base plate, and an LED bare chip and an alternating current driving bare chip packaged on the base plate by the COB technology, wherein the alternating current driving bare chip and the LED bare chip are connected with each other by a circuit. In the LED lamp panel, as the LED chip and a drive IC (integrated circuit) chip are bonded on the base plate simultaneously, the defects of the existing LED COB lamp panel are remedied, the power factor is above 0.95, the total harmonic distortion is no more than 20%, and the electromagnetic compatibility satisfies the international standards of EN55015, EN61547 and the like, so that the LED lamp panel is applicable to various using environments with high requirements and large-area application.

Wound bed preparation in a skin wound area can be carried out by using a hydrogel sheet, wherein the hydrogel sheet is prepared by spreading a hydrogel containing a water-soluble polymer, glycerin, and water on a two-layered laminated film consisting of a polyurethane film and a hydrophobic fiber and the moisture permeability of the hydrogel sheet is 200-2000 (g / m2 / 24 h).

The invention discloses a powder coating for a ship surface. The powder coating comprises the raw materials in parts by weight: 75-78 parts of castor oil modified waterborne polyurethane, 23-26 parts of epoxy resin, 8-11 parts of polytrifluorochloroethylene, 8-11 parts of hollow glass microspheres, 14-15 parts of calcium carbonate superfine powder, 4-5 parts of talcum powder, 1-3 parts of organic montmorillonoid, 1.5-1.8 parts of a titanate coupling agent KR-TTS, 0.2-0.5 part of a curing agent, 0.5-0.8 part of a mildew preventive and 20-23 parts of a pigment. The powder coating is excellent in hydrophobicity, oleophobicity, dirt prevention property and corrosion resistance; marine organisms are difficultly to attach to the powder coating, and the powder coating is suitable for the use environment on the ship surface.

The invention relates to a protection sleeve of portable electronic equipment. The protection sleeve comprises an equipment protection main body, a battery protection main body and a rotary shaft, wherein the equipment protection main body is used for accommodating the electronic equipment; the battery protection main body is used for accommodating a solar battery assembly and can be covered on the battery protection main body; the solar battery assembly faces one side, far away from the equipment protection main body, of the battery protection main body; the rotary shaft is connected between the equipment protection main body and the battery protection main body and enables the battery protection main body to rotate relative to the equipment protection main body on a plane parallel to the equipment protection main body. The protection sleeve of the portable electronic equipment has protection and charging functions; the configurations of the portable electronic equipment can be simplified; the portable electronic equipment can be charged at any time, so that the service life of the portable electronic equipment is prolonged.

The invention provides a tooth-shaped chain which comprises inner chain plates, outer chain plates, short pin shafts and long pin shafts, wherein the inner chain plate holes formed in the inner chain plates are circular holes or non-circular profile holes; a pair of tooth-shaped bulges is formed in each inner chain plate hole; the inner chain plate holes are divided into outer side slots and inner side hole grooves through the bulges; the short pin shafts are axially positioned through the bulges and the outer side slots, and are fixed together with the inner chain plates in an interference fit manner; multiple inner chain plates are overlapped to form an inner link; the long pin shafts penetrate through the inner side hole grooves of the inner chain plates and are riveted together with the two outer chain plates tightly to form an outer link; the short pin shafts of the inner link is in contact with the long pin shafts of the outer link through arc working surfaces to form a rotation pair which can rotate within a certain range. According to the tooth-shaped chain provided by the invention, the structural constraints of the conventional tooth-shaped chain and Hy-Vo tooth-shaped chain are broken through, the friction loss and impact vibration between the pin shafts and chain plates are reduced by changing the assembling mode of the pin shafts and the arrangement mode of the inner chain plates, and the mechanized and scale production of high-speed tooth-shaped chains is achieved.

The invention relates to a two-dimensional code identification method, and particularly relates to a two-dimensional code batch identification method. The method comprises the following steps that step S0, products to be checked marked with two-dimensional codes are conveyed to an enclosed two-dimensional code information reading system through intermittent movement of an automatic conveying device; step S1, two-dimensional code information reading is performed on the static batch products to be checked through the two-dimensional code information reading system and batch two-dimensional codedata information can be obtained; and step S2, an external computer system performs identification and matching on the detected two-dimensional code data information in the step S1. The advantages ofthe two-dimensional code batch identification method are that the batch products with the two-dimensional codes are conveyed through the arranged automatic conveying device so that the process of manual product taking can be effectively replaced; and comprehensive two-dimensional code image information identification is performed on the two-dimensional codes of the internal regularly arranged products through the enclosed two-dimensional code information reading system which is internally provided with the thermal imaging equipment and the photoelectric positioning detection system.

The present invention relates to a stable protein and / or amino acid detecting composition that can be used as a reagent for in situ detection, such as on surfaces. The invention also relates to a method for detecting protein and / or amino acid on surfaces using the composition and kits comprising the composition.

The invention discloses a TOF module for a VSLAM system and a VSLAM calculation method. The TOF module comprises at least one light source, at least one imaging unit and a synchronizing unit used forsynchronizing the light source and the imaging unit. wherein the imaging unit comprises an optical sensor, the optical sensor comprises at least two areas, the at least two areas comprise a first areaand a second area, the first area is used for collecting a first image signal of visible light wavelength, and the first image signal is a black-white image signal; the second area is used for acquiring a second image signal of the infrared wavelength; the TOF module is used for obtaining light intensity information according to the first image signal and obtaining depth information through the second image signal. According to the TOF module and the VSLAM calculation method, some inherent defects of the TOF module are overcome, the advantages of the TOF module relative to a common imaging module are brought into play, and the corresponding VSLAM system is better in performance and more suitable for various use environments.

The invention discloses a marine coating for preventing adhesion of marine organisms and a processing technology, and relates to the technical field of coatings. The marine coating for preventing adhesion of the marine organisms is prepared from the following raw materials in parts by weight: 9 to 12 parts of nano silicon dioxide, 4.5 to 7.5 parts of castor oil modified waterborne polyurethane, 2.3 to 4.5 parts of vinyl polydimethylsiloxane, 10 to 12 parts of hollow glass beads, 13 to 18 parts of epoxy resin, 8.3 to 11.8 parts of polytrifluorochloroethylene, 1.5 to 1.8 parts of titanate coupling agent, 4.5 to 5.8 parts of polyacrylamide and 12 to 24 parts of defoaming agent. The marine coating for preventing adhesion of the marine organisms has good hydrophobicity, lipophobicity, antifouling property and corrosion resistance, can effectively prevent adhesion of marine organisms, is suitable for the use environment of the surface of a ship, ensures actual use of the coating, and is convenient for quantitative filling during filling.

The invention provides a membrane material for a vacuum compressed bag and a preparation method thereof. The membrane material comprises the following components: polyethylene, 2,2-dimethylolpropionic acid, polyethylene glycol terephthalate, methyl trichlorosilane, acrylonitrile, butadiene, styrene, diphenyl dichlorosilane, mono-alkoxypyrophosphate and dicumyl peroxide. The preparation method comprises the following steps: weighing the components in parts by weight; feeding each component into a high-speed mixer, and uniformly mixing; extruding the uniformly mixed raw materials at a high temperature by using a twin-screw extruder; casting the mixed materials into a membrane after extruding by using a casting machine,and cooling and packaging after casting, thereby obtaining the product. The membrane material for the vacuum compressed bag has high weather resistance comprising illumination resistance, high temperature resistance and low temperature resistance, also has excellent flexibility and mechanical strength and is suitable for a service environment of the vacuum compressed bag.

The invention provides a modular cervical vertebra massager and a method thereof, wherein the modular cervical vertebra massager comprises a massage assembly and a base assembly; the massage assemblycomprises a massage main body, the massage main body completes massage operation, and a left clamping part and a right clamping part are respectively arranged on both sides of the massage main body; the massage assembly can be detachably arranged on the base assembly. When the massage assembly is arranged on the base assembly, the modular cervical massager is in a movable massage state and in a horizontal massage state; when the modular cervical massager is in a movable massage state, the massage assembly is used alone, the left clamping part and the right clamping part form a surrounding space and an opening, and the left clamping part and the right clamping part can always be close to a neck of a user.

The invention relates to fixed pipeline equipment, and particularly relates to a water dividing and collecting device bracket. The plastic bracket of the water dividing and collecting device comprises an adjusting rack (1), an upper fixing rack (2) and a lower fixing rack (3), wherein the upper fixing rack (2) and the lower fixing rack (3) are adjustably fixed on the adjusting rack (1); a row of necks (10) are formed in the adjusting rack (1); the front end part (12) of each neck (10) forms an inverse calabash shape on the whole; a reducing structure (14) exists on a waist part (13) of the inverse calabash shape; a first hook post (21) is arranged at the bottom of an upper bracket (20) of the upper fixing rack (2); fixed matching is achieved by the first hook post and the necks (10) in the fixing process. According to the plastic bracket of water dividing and collecting device, which is disclosed by the invention, the main body is made of a plastic material, and is lighter and more applicable to an operating environment; the plastic bracket is integrally molded in an injection manner, fewer in component and convenient to process; the adjusting rack and the fixing rack are connected by adopting a buckle structure, and fast to fix; the fixing rack can be adjusted up and down, more flexible to install, practical and reasonable in overall structure, and strong in exploitativeness.

Disclosed is a high-performance sound-proof pneumatic shielding vertical hinged door for an MRI shielding chamber. The high-performance sound-proof pneumatic shielding vertical hinged door for the MRI shielding chamber is characterized by comprising a door leaf copper frame (7) and a door frame copper frame (8); a pneumatic shielding module is arranged between the door leaf copper frame (7) and the door frame copper frame (8) and is composed of a finger-type reed (9), an elastic lining stripe (10), a force transmission unit (11) and a micro air cylinder (14), wherein the force transmission unit (11) is in a tubular shape, the finger-type reed (9) is in contact with the elastic lining stripe (10) and in the shape of an end-to-end stripe and is fixed between the door frame copper frame (8) and the door leaf copper frame (7); the finger-type reed (9) is made of elastic conducting materials. The high-performance sound-proof pneumatic shielding vertical hinged door for the MRI shielding chamber is an ideal upgraded product of existing extrusion type copper profile sound-proof shielding doors, overcomes the deficiencies and shortcomings of existing vertical hinged doors and achieves novelty, creativity and practicality.

The invention discloses a vehicle-mounted refrigerator shell. The shell is a rectangular shell with an inner cavity, and is provided with a battery bin and a compressor bin on the back wall; the battery bin and the compressor bin are respectively rectangular bins recessed in the shell, and are separately arranged; and a back side plate, left and right side plates, the top and a baseplate of the shell adopt a plastic integral structure. The integral structure is integrally molded, but is not an integral structure formed by bonding and splicing. The shell preferentially adopts PE plastic, has excellent impact resistance, heat resistance, low-temperature resistance, chemical medicine resistance and electric performance, is suitable for bad environments, has such characteristics as easy machining, stable product size and good surface glossiness, is easy to realize modular supply, is easy to produce and assemble, facilitates improvement of the production efficiency and reduction of the production cost, and can satisfy the use environmental requirements of a vehicle-mounted refrigerator.

The invention provides a household shower room mist spray heating device. The household shower room mist spray heating device can guarantee a good mist spray effect when water pressure changes and is completely free from external-connection motive power energy source except a water heater, small and exquisite in size, reliable, practical and very suitable for a using environment of a household shower room. The household shower room mist spray heating device comprises the water heater, a hot water pipe, a ball valve and a multi-hole mist spray head, wherein a hot water outlet of the water heater is provided with the hot water pipe; the ball valve is installed in the middle of the hot water pipe; and the bottom of the hot water pipe is communicated with the multi-hole mist spray head. The household shower room mist spray heating device is characterized in that after being provided with an automatic adjusting valve, the bottom of the hot water pipe is communicated with the multi-hole mist spray head; a valve body of the automatic adjusting valve particularly comprises a water inlet cavity, a water outlet cavity, a middle channel and a water-drop-shaped valve core; a clapboard is arranged between the water inlet cavity and the water outlet cavity in an interval mode; the middle channel is arranged in the middle of the clapboard; and the middle channel is particularly a circular through hole.

The invention belongs to the field of computer fittings and particularly relates to a keyboard with a light-emitting module and a sound-producing module. The keyboard with the light-emitting module and the sound-producing module comprises a keycap board and a supporting board, wherein the keycap board comprises a plurality of keycaps; the keycaps can slide up and down on the keycap board; the supporting board is used for supporting the keycap board; the keycap board is arranged on the upper surface of the supporting board; through holes are formed in the supporting plates at the positions corresponding to the keycaps; light-emitting sources are arranged inside the through holes; and an elastic supporting device is arranged between the keycap and the supporting plate. The keyboard is characterized in that a conductive layer which is connected with a central controller is arranged on the supporting board at the position corresponding to the keycap; a metal layer is arranged on the lower surface of the keycap; a contact switch is formed between the keycap and the supporting plate; the light-emitting source is connected with an LED (Light-emitting Diode) controller; the LED controller is connected with the central controller; and a loudspeaker is also connected on the central controller. The keyboard disclosed by the invention achieves the purpose of LED illumination of the keyboard, can be automatically opened, and can produce sounds.

The invention discloses a steel belt traction type household platform. The platform capable of lifting up and down along a platform operating guide rail is arranged in a household building hoistway and comprises a platform bottom plate, a platform frame, a platform left column and a platform right column; a traction machine is connected with a bracket via a damping piece; the bracket is connected with the platform operating guide rail and the top end of a counter-weight operating guide rail through a support plate; idler wheel guide shoes of the platform operating guide rail are fixedly mounted on the two inner sides of the platform left column and the platform right column; elastic components for absorbing vibration are arranged on a steel belt of the traction machine and at the front end of a head joint piece of the platform; and the traction machine drives the platform to run in the hoistway with low noise. The steel belt traction type household platform has the following advantages: two-side car walls, a front car wall and a car top are not arranged, and a platform frame decorative plate and the platform bottom plate are arranged, so that steel belt traction type household platform is of the structure with open space, and connection between a door opener and the car walls is avoided to eliminate a noise source; and a traction wheel rotates, so that the steel belt drives the platform and counter-weight to run, the steel belt is stressed to uniformly run, the operating noise is lowered, and the manufacturing cost is reduced.

The invention discloses a powder coating for a ship surface. The powder coating comprises the raw materials in parts by weight: 75-78 parts of castor oil modified waterborne polyurethane, 23-26 parts of epoxy resin, 8-11 parts of polytrifluorochloroethylene, 8-11 parts of hollow glass microspheres, 14-15 parts of calcium carbonate superfine powder, 4-5 parts of talcum powder, 1-3 parts of organic montmorillonoid, 1.5-1.8 parts of a titanate coupling agent KR-TTS, 0.2-0.5 part of a curing agent, 0.5-0.8 part of a mildew preventive and 20-23 parts of a pigment. The powder coating is excellent in hydrophobicity, oleophobicity, dirt prevention property and corrosion resistance; marine organisms are difficultly to attach to the powder coating, and the powder coating is suitable for the use environment on the ship surface.

The invention discloses an axial flow fan with rotor blades and static front guide blades distributed in long-short staggered manner. The axial flow fan comprises a front air duct, an air cylinder, animpeller, a driving motor and a front mesh enclosure; the driving motor is installed on a motor installation plate of the front air duct; the front air duct supports the driving motor; the axial sizeof the front air duct is overlapped with that of the motor; the axial space of the front air duct is fully utilized, and the axial length of the axial flow fan is effectively shortened; meanwhile, air flowing through the front air duct flows through the outer surface of the driving motor to cool the driving motor, and the impeller is an axial flow type impeller and is installed at the shaft extension end of the driving motor; during work, the impeller rotates to generate negative pressure to suck in external air, and finally the external air is conveyed to a high-temperature brake resistancetape at the rear end to dissipate heat of the resistance tape; an integral flow channel structure consisting of the front air duct realizes the advantages of compact integral structure, strict axial size control and the like of the fan; in addition, the axial flow fan has the main characteristic that the output air pressure can achieve different pressures on all sections in the circumferential direction.

The invention provides a household shower room mist spray heating device. The household shower room mist spray heating device can guarantee a good mist spray effect when water pressure changes and is completely free from external-connection motive power energy source except a water heater, small and exquisite in size, reliable, practical and very suitable for a using environment of a household shower room. The household shower room mist spray heating device comprises the water heater, a hot water pipe, a ball valve and a multi-hole mist spray head, wherein a hot water outlet of the water heater is provided with the hot water pipe; the ball valve is installed in the middle of the hot water pipe; and the bottom of the hot water pipe is communicated with the multi-hole mist spray head. The household shower room mist spray heating device is characterized in that after being provided with an automatic adjusting valve, the bottom of the hot water pipe is communicated with the multi-hole mist spray head; a valve body of the automatic adjusting valve particularly comprises a water inlet cavity, a water outlet cavity, a middle channel and a water-drop-shaped valve core; a clapboard is arranged between the water inlet cavity and the water outlet cavity in an interval mode; the middle channel is arranged in the middle of the clapboard; and the middle channel is particularly a circular through hole.

The invention discloses a hydraulic control butterfly valve. The hydraulic control butterfly valve comprises a rotating disc, a butterfly valve bracket matched with the rotating disc, and a stroke feedback device arranged on the butterfly valve; the stroke feedback device further comprises a circumferential groove located in the circumferential position of the outer side of the rotating disc, a groove opening of the circumferential groove is formed forwards, the radial size of the groove bottom of the circumferential groove is greater than that of the groove opening of the circumferential groove; and the radial size of the end, located in the groove bottom, of a connecting piece is greater than the size of the groove opening in the direction, thus a touch module is fixedly connected to thecircumferential groove and can be slidably adjusted along the circumferential groove. The stroke feedback device of the hydraulic control butterfly valve can be flexibly adjusted according to the using environment and using conditions, the adjusting mode is simple and easy to realize, and the structure of the butterfly valve cannot be damaged either.

The invention relates to the technical field of fireproofing, in particular to a fireproof coating for a copper-clad aluminum busbar. The fireproof coating is prepared from raw materials in parts by weight as follows: 45-60 parts of bisphenol A epoxy vinyl ester resin, 15-20 parts of carbamate, 20-30 parts of toluene diisocyanate, 10-15 parts of acrylic resin, 15-20 parts of antimony trioxide powder, 5-10 parts of ammonium polyphosphate, 10-15 parts of sodium hexametaphosphate, 2-4 parts of dibutyl phthalate, 10-16 parts of mica powder, 8-12 parts of asphalt, 7-12 parts of a reactive diluent,0.3-0.6 parts of a leveling agent and 30-50 parts of water. The fireproof coating can be tightly combined with the copper-clad aluminum busbar and has good fireproof and flame-retardant effects, meanwhile, the bisphenol A epoxy vinyl ester resin can act with carbamate and toluene diisocyanate, so that corrosion resistance, flexibility and manufacturability of a product can be further improved, andthe fireproof coating is more suitable for the use environment of the copper-clad aluminum busbar.

The invention discloses a hydraulically controlled butterfly valve, which comprises a rotating disk, a butterfly valve support matched with the rotating disk, and a stroke feedback device arranged on it. The notch opens forward, and the radial dimension of the groove bottom is larger than the radial dimension of the notch; the radial dimension of one end of the connector located in the bottom of the groove is larger than the dimension of the notch along this direction, so that the touch module is fixedly connected to the circumferential groove, and It can be adjusted by sliding along the circumferential groove. The stroke feedback device of this structure can be flexibly adjusted according to the use environment and use conditions. The adjustment method is simple and easy to realize, and will not damage the structure of the butterfly valve itself.

The invention discloses a lawn cropper, wherein a protective shell is installed on the surface, and an accumulator and a motor are installed in the protective shell; a motor shaft of the motor is vertically downward and extends to the lower side of the platform, and a cutter head on which cutters used for clipping lawn are installed is installed on the part of the motor shaft below the platform; a forward walking wheel is connected with the bottom end of the motor shaft via an extending column, and the extending column is rotationally installed at the bottom end of the motor shaft via a bearing; a grass collection box is installed on the bottom surface of the platform at the rear part of the butter head, and the grass collection box comprises a grass collection opening with an inclined front end face; rear walking wheels are installed at two sides of the grass collection box; a sliding boss is arranged on the motor shaft along the length direction of the motor shaft, and an assembling hole used for assembling the motor shaft is correspondingly formed in the center of the cutter head, and a sliding groove used for assembling the sliding boss in a sliding manner is formed in the hole wall of the assembling hole; a manual push rod is installed on the platform, and a solar cell panel is assembled on the front surface of the manual push rod.

Wound bed preparation in a skin wound area can be carried out by using a hydrogel sheet, wherein the hydrogel sheet is prepared by spreading a hydrogel containing a water-soluble polymer, glycerin, and water on a two-layered laminated film consisting of a polyurethane film and a hydrophobic fiber and the moisture permeability of the hydrogel sheet is 200-2000 (g / m2 / 24 h).