82results about How to "Adequate ventilation" patented technology

The invention relates to a pressure-relief valve of a housing for an electrical / electronic unit, particularly for a housing of a control unit of a motor vehicle, comprising a pressure equalization element, which comprises a membrane. It is provided that at least one hydrophobic layer (22) is located on the membrane (21). The invention further relates to a housing (1) for an electrical / electronic unit (2), particularly of a control unit (4) of a motor vehicle, comprising such a pressure-relief valve (11).

A multi-substrate sheet for forming an at least partially open mesh fabric bag using a form, fill and seal machine and a bag formed of this sheet are provided. The sheet includes at least one strip formed of an open mesh polymeric fabric and at least one strip formed of a polymeric film. The fabric and film strips are secured to one another to form a web that can be formed into a roll and utilized with a form, fill and seal machine. The bag resulting from the processing of the web by the machine includes a substantial open mesh fabric portion to provide adequate ventilation to the product positioned within the bag and a printable film portion.

The invention discloses a drying apparatus, comprising a cavity body formed by the enclosing of a housing and provided with a cavity, wherein a plurality of separation plates are arranged at intervals in the cavity body, thus the cavity of the cavity body is separated into a plurality of space units for containing materials to be dried; each separation plate or one end of each separation plate is provided with a ventilation hole through which the space units are communicated to form an air flow passage; the housing is provided with at least one air inlet communicated with the cavity of the cavity body; and at least one exhaust fan is arranged in the position of a space unit that is not provided with the air inlet. The cavity of the cavity body is separated into a plurality of space units for containing the materials to be dried; the air flow passage among the space units is still long even though the outline dimension of the whole apparatus is small; the temperature in the whole cavity body is uniformly distributed, thus a space for fully drying is provided for the materials to be dried in the space units, a good drying effect can be obtained, and especially clothes can be dried in a uniform and non-deformed manner; and meanwhile, as different materials can be placed in the same apparatus, different requirements can be met, and convenience can be provided.

The invention discloses a non-separable deformable ear hook of an intra-aural receiving behind-the-ear BTE. The BTE comprises a machine body and an intra-aural receiving or sound conducting device for receiving and outputting sound, which is put in an auricula and extends into an external auditory canal; the machine body and the sound conducting device are connected through the ear hook. The ear hook and the machine body of the BTE are connected and are non-removable; furthermore, the ear hook can be used on both left and right ears; the shape and the size of the ear hook can be changed, so that the ear hook is applied to auriculas of different patients; the ear hook is unnecessary to be pre-made into fixed curved shape and size in factories; but, the ear hook is convenient for BTE fitting people to curve and stretch by hands in shops or at home by patients; furthermore, the ear hook is made of a material and a structure for self-keeping curved deformation; the sound conducting device comprises a loudspeaker component and an ear mould; the ear mould comprises a fixed tube and a mould head connected with the loudspeaker component, wherein the size of the fixed tube is constant; the mould head is made of a soft material and is different in size. By means of the manner, the non-separable deformable ear hook disclosed by the invention is self-adaptive to auriculas and facial structural shapes and is applied to being worn by different crowds in different stages; furthermore, the non-separable deformable ear hook is easy to carry.

The invention relates to an agaricus bisporus brick-concrete mushroom house with a ventilating system and a cultivation control technology for the agaricus bisporus brick-concrete mushroom house. The agaricus bisporus brick-concrete mushroom house comprises a brick-concrete type grassy edible mushroom house, wherein the mushroom house comprises a wall with ventilating windows, and a roof with heat preservation sealing property; the semi-automatic circulating ventilating system capable of improving the ventilating environment in the mushroom house is also arranged in the mushroom house; the roof comprises a plastic thin film, an oil felt, a sponge composite heat preservation light reflection film and tiles which are arranged along the direction from inside to outside. Under the condition that a mushroom farmer does not need to greatly change and transform the mushroom house and the cultivation technology, the heat preservation performance and the ventilating balance property of the mushroom house are improved, and the pest damage is lowered; due to regular control of a relay, supplementation and circulating control on outdoor air of the mushroom house are realized; therefore the labor is saved, the ventilating condition is improved, and the aims of increasing the yield, achieving high quality and increasing the income are fulfilled.

The invention belongs to the ventilation cooling technical field, and discloses a multi-stage jet spray gravity backwater draught fan-free filler-free type cooling device provided with a tower body framework; the inner side of the tower body framework is provided with a water collecting tank; an opening of the upper side of the water collecting tank is connected with a wind tube demister in a bolting manner; the outer side of the water collecting tank is connected with a lateral demister in a bolting manner; the center of the interior of the water collecting tank is provided with a central-stage hydrodynamic propulsion atomizer; the lower side of the central-stage hydrodynamic propulsion atomizer is connected with at least one middle-stage fixed low-pressure rotational flow atomizing nozzle assembly through a water distribution pipe, and the lower side of the middle-stage fixed low-pressure rotational flow atomizing nozzle assembly is connected with at least one bottom-stage gravity backwater low-pressure rotational flow atomizing nozzle assembly through a water distribution pipe. The technical bottlenecks of poor atomization mass transfer performance, poor flow field and low cooling temperature difference of traditional spray cooling towers are broken through, the cooling performance of the cooling device is better than that of a mechanical ventilation cooling tower, and the cooling device has good cooling performance, energy-saving performance and maintenance performance; at the same time, the investment cost is reduced under a requirement of a certain tower height.

A shot blasting rust removal device for buoy accessories comprises a rack, a shot blast cleaning chamber, a blast wheel assembly, a shot-sand distributing system, a lifting hook system, a dust removal system and an electrical control system. The shot blasting rust removal device for buoy accessories is structurally characterized in that the shot-sand distributing system for shot-sand distributing and supplying is borne on the top layer of the rack, the shot blast cleaning chamber is located below the shot-sand distributing system, an outlet of the shot-sand distributing system is connected with an inlet of the blast wheel assembly for carrying out shot blasting work treatment, an inlet of the shot-sand distributing system communicates with a pipeline extending downwards, and a shot-sand conveyor for sucking materials from the outside is arranged at the tail end of the pipeline. The shot blasting rust removal device for buoy accessories has the characteristics of being high in automation degree, capable of achieving pipeline operation, high in production efficiency, good in rust removal quality, low in cost and little in environment pollution.

The invention relates to the field of non-transfiguration pumps for elastic fluid, in particular to a radiating fan controlled by moment of force and used for a servo motor, which comprises a front end cover (11), a rear end cover (12), a casing (2), a fan blade shaft (3) and fan blades (32). The radiating fan is characterized by further comprising a plate shaft (5), a middle plate shaft (6), a gear shaft (7), steel balls (81) and springs (83). The plate shaft (5) is sleeved in the front end cover (11) through a plate shaft bearing (51), the middle plate shaft (6) is a step shaft, a primary gear (71) is fixedly connected with the middle of the middle plate shaft (6) through a gear key (75), and the steel balls (81), steel ball piston shoes (82) and the springs (83) are all arranged in through holes of a middle plate (61). The radiating fan is simple in structure, high in protection level and wide in application range.

The invention discloses an aerobic composting reactor used for treating household garbage in a severe cold area and relates to an aerobic composting reactor. The aerobic composting reactor aims at solving the problems of low conversion rate of household garbage composting finished products and small treatment amount caused by poor heating and heat preservation effects and non-uniform ventilation and oxygen supply of the existing composting reactor. According to the aerobic composting reactor, an electromotor and a columnar reactor tank body are mounted on a rotary bracket side by side, a reactor temperature control box is connected with the columnar reactor tank body, an inner shaft is eccentrically and axially arranged inside the columnar reactor tank body in a penetrating manner, an outer shaft sleeves the inner shaft, the electromotor is connected with the outer shaft, a plurality of small holes are formed in the inner shaft and the outer shaft, a plurality of stirring paddles are annularly mounted on the outer shaft, an air compressor is connected with the inner shaft through a gas flowmeter, two electrode plates are mounted on two end surfaces of the columnar reactor tank body and thermal-insulation layers are mounted on outer walls of two end surfaces of the columnar reactor tank body. The aerobic composting reactor is used for treating household garbage in the northern severe cold area.

The invention relates to full heat exchange air conditioning unit. It includes blower fan, air inlet pipeline, exhaust pipeline, cooling coil, temperature controller, and filter element. Air inlet airflow is doing sensible heat transfer with working medium by the cooling coil. And the inlet and exhaust airflows are doing full heat exchange by the filter element.

The invention provides a device for performing therapeutic massage on the head, the neck and the shoulders. The device comprises a core structure made of foaming material, at least four convex parts,multiple electric wires and a sheath. The center of the core structure is provided with a horizontal accommodating hole, and the shape enables the neck of the patient to be steadily and comfortably accommodated inside so that the rear inner edge near the rear side of the hole is enabled to be clung to the neck of the patient and the two side walls of the hole are enabled to be clung to the shoulders of the patient. At least four convex parts are made of conductive fibers, and the hardness is greater than that of the core structure and one side surface protrudes towards the direction of the horizontal accommodating hole so that each conductive fiber is enabled to form the current conduction relationship with the neck and shoulder skin of the user. One end of each electric wire penetrates through the core structure to be connected with each conductive fiber, and the other end is connected with therapeutic signal generation equipment. The sheath is a sleeve made of breathable fabric, andthe core structure can be completely stored in the sheath and all the convex parts are enabled to be exposed out of the sheath.

The invention provides a high-permeability light-weight seedling growing substrate for vegetable, belonging to the field of vegetable cultivation technology. The high-permeability light-weight seedling growing substrate comprises, by weight, 30-40 parts of perlite, 20-30 parts of vermiculite, 5-10 parts of fermented chicken manure, 10 parts of calcium magnesium phosphate fertilizer, 20-30 parts ofdouble-mushroom residues, 15-25 parts of peat, 40-50 parts of wood chips, 5-12 parts of traditional Chinese medicine residues, 10-20 parts of crushed vegetable straw and 3-5 parts of manganese sulfate. The seedling growing substrate for vegetable in the invention is specifically suitable for seedling raising of vegetable, and has the advantages of rich nutrients, good rooting properties and highsurvival rate.

The invention provides a clothes washing and drying integrated machine which comprises a shell, a clothes washing device and a clothes drying device, wherein the clothes washing device and the clothesdrying device are arranged in the shell and can run independently. The clothes drying device comprises a heat exchange element, a heat exchange element filtering device, a condensate discharge waterchannel and a flushing discharge water channel, wherein the condensate discharge water channel is used for discharging condensate of the heat exchange element, and the flushing discharge water channelis used for discharging flushing water for flushing the heat exchange element filtering device. The clothes washing device comprises a drainage water channel, and both the condensate discharge waterchannel and the flushing discharge water channel are communicated with the drainage water channel. As both the condensate discharge water channel and the flushing discharge water channel of the clothes washing and drying integrated machine are communicated with the drainage water channel, the flushing water for flushing the heat exchange element filtering device and the condensate of the heat exchange element can be discharged by the drainage water channel of the clothes washing device, and the clothes drying device and the clothes washing device achieve higher integration degree.

The invention discloses an air volume adjusting plate for a plug-in box. The air volume adjusting plate comprises a plate body matching the shape of the bottom of the plug-in box; a connection portion disposed on a side surface of the plate body; a connection port disposed on the connection portion and to be connected with the plug-in box; a plurality of vent holes arranged on the plate body regularly; and latches inserted into different vent holes and used for changing the air volume at different positions on the plate body. All the vent holes are arranged in parallel on the plate body in a plurality of rows. Each gap between guide rails in the plug-in box corresponds to at least one row of vent holes. The invention also discloses the application method of the air volume adjusting plate. The air volume adjusting plate ingeniously changes the air volume of different functional modules by the arrangement of the latches on the plate body. Thus, each module is ventilated and cooled on demand, the air volume of respective modules are reasonably distributed, the heat dissipation efficiency of a draught fan is improved, the cost of plug-in box is reduced integrally, and a good balance is made between the air volume and draught fan noise and power consumption. The air volume adjusting plate is ingenious in design, simple in structure, and easy to use.

The invention relates to the technical field of civil architectures and provides a civil architecture building construction. The civil architecture building construction comprises a main body layer, a gutter, a rainproof thermal insulating layer and a ventilation layer, wherein the gutter is arranged on an upper cross beam and comprises a front gutter, a rear gutter and a side gutter; the rainproof thermal insulating layer is arranged on the upper cross beam and comprises a triangle beam, a cross bar beam, batten boards, cross battens and a prefabricated tile; the two ends of the cross bar beam are respectively arranged on two inclined beams of the triangle beam, the batten boards cover the cross battens in an equidistance way, the cross battens are narrower than the batten boards and are arranged on the batten boards in a crisscross shape with the batten boards, and the distance of the cross battens arranged on the batten boards does not conform to the corresponding length of the prefabricated tile; the prefabricated tile is arranged on the cross battens and leans against with the upper side edges of the cross battens by virtue of a stopping block arranged on the bottom surface of the prefabricated tile, so that the prefabricated tile can not slip downward on the cross battens with a slope due to vibration. With the construction, the technical problems of the civil architecture building construction are solved, and good effects of convenience in production, rainproofness and ventilation are achieved.

A piercing station for piercing sample container caps or thick stoppers. The piercing station has a structural frame with two vertical guide rods. A carriage assembly is slidably mounted on the guide rods and is further driven to move up and down along the guide rods. The carriage assembly carries a blade holder, which in turn holds a piercing blade assembly. The blade assembly includes a center blade and two cross blades interlocked together, such that the blade assembly has a generally modified "H"-shaped cross section for piercing a cap on the sample container. Lubricant left in or on the sample container cap by the piercing station reduces the force required by the sample probe to penetrate thick stoppers for sample aspiration and level sensing. The "H"-shaped cut helps to equalize the pressure in the sample container during sampling, so that clot detection is more effective.

The invention discloses fermentation equipment with an improved mixing ventilation device and an application method of the fermentation equipment. The fermentation equipment comprises a fermentation tank, a mixer shaft is longitudinally arranged in the center of the fermentation tank, rotten layer mixing units, fermentation layer mixing units and preheating layer mixing units are horizontally arranged on the mixer shaft from top to bottom, mixing arms are arranged on the mixing units, vent holes communicated with an air duct are formed in the mixing arms of the rotten layer mixing units and the fermentation layer mixing units, and the number and / or the pore diameter of the vent holes in the mixing arms of the rotten layer mixing units are / is greater than the number and / or the pore diameter of the vent holes in the mixing arms of the fermentation layer mixing units. Through improvement of the mixing and ventilation structure of the fermentation equipment, sufficient ventilation in mixing is realized, energy consumption of the fermentation equipment is lowered, sufficient fermentation is achieved, water content of fermentation materials is reduced.

A removable dog screen for placement in the rear opening door of a vehicle to provide shade and ventilation to an animal within the vehicle for a short period of time. The disclosure provides for a removable dog screen that spans across the rear opening of a vehicle such as an SUV. Disclosed system incorporates elastic bands for keeping the screen taught as well as mesh material allowing for ventilation.

The invention discloses a folding rain shelter for grapes. The folding rain shelter for grapes comprises a plurality of supports which are arranged linearly, and also comprises two guide rails, a plurality of arc-shaped beams the heights of which are sequentially reduced and a deploying and retracting mechanism. The two guide rails are arranged at two sides of the tops of the supports in parallel, a plurality of crossbeams which correspond to the supports one by one are fixed between the two guide rails, the crossbeams are fixedly connected with the supports, the upper surface of each guide rail is provided with a sliding groove, the plurality of arc-shaped beams are sequentially arranged according to the height variation, two ends of each arc-shaped beam are respectively arranged in two sliding grooves, and are respectively in sliding fit with the sliding grooves, and the upper surfaces of the plurality of arc-shaped beams are wrapped by a flexible rain shading layer. In a day with heavy rain, the deploying and retracting mechanism can pull the arc-shaped beams to deploy the flexible rain shading layer for keeping off the rain, and grape vines can be prevented from being damaged by heavy rain; in a sunny day, the deploying and retracting mechanism can pull the arc-shaped beams to retract the flexible rain shading layer, and grapes can be fully irradiated and ventilated; and the folding rain shelter for grapes is good in using effect and high in practicality.

The invention discloses an organic cultivation method for yacon trees and belongs to the field of planting. The organic cultivation method comprises the steps of selecting land, preparing the land, selecting seeds, sowing the seeds, conducting field management and harvesting. Ridging and membrane covering are adopted in the planting mode. The width of ridges is 55-65 cm, the height of the ridges is 35-40 cm, and the space between the ridges is 110-130 cm. After yacon seed stems are treated through a potassium permanganate solution, the hole sowing mode is adopted for planting. Compared with the prior art, the organic cultivation method has the following advantages that the growth period is short, the yield is high, and quality and mouthfeel are good; the method is simple, convenient to popularize and suitable for mass production; vegetable seed cake fertilizer is used, and the fertilizer efficiency is good in comprehensiveness and lasting; the ridging and membrane covering method is adopted, soil thermal insulation and moisturizing are facilitated, the ridge space is set to be wide, plants can fully receive sunshine and ventilation, and the air permeability of soil is improved; cultivated yacon is large in size and plump.

The invention provides a kiwi fruit transfer storage box and a kiwi fruit transfer storage method. The kiwi fruit transfer storage box comprises a box body, a plurality of trays and a plurality of storage bags; air inlets are formed in the left and right sides of the box body; a plurality of storage cylinders are fixedly installed in the box body; the upper ends of the storage cylinders are opened, and a plurality of diffluence holes are formed in the lower end of each storage cylinder; a cylinder cover is hinged to the opened end of each storage cylinder; air outlets are formed in the cylinder covers; exhaust fans are mounted at the air outlets, and are electrically connected with a control system arranged in a transport vehicle; a plurality of limiting holes are formed in each tray; thestorage bags are fixedly connected to openings of the corresponding limiting holes; a plurality of supporting legs are fixedly connected to the bottom of each tray; and the trays can be arranged in the corresponding storage cylinders in a laminating manner. Through the adoption of the technical scheme, good ventilation is maintained in the storage cylinders. Through the intermittent coordinated operation of the exhaust fan, a heat sink and a heating wire, the temperature in the storage cylinders is stabilized within the ideal temperature range of 0-12 DEG C, which effectively protects the quality of kiwi fruit.

The invention discloses a non-pipe type bidirectional fresh air system which is installed on the external wall of a building; at least one group of ventilating openings are arranged on the external wall of the building; the non-pipe type bidirectional fresh air system further comprises at least one group of ventilators and time controllers for controlling the starting / shutdown of the ventilators within a preset time; each ventilator is arranged at each ventilating opening and the starting / shutdown of the ventilator is controlled by the corresponding time controller. In the non-pipe type bidirectional fresh air system, the ventilators and the corresponding time controllers are arranged in pairs; the ventilators are controlled orderly by means of the time controllers, so that the timely and moderate ventilation is realized, the indoor air quality is improved and the ventilating energy consumption of the building is reduced effectively.

The invention discloses a method for improving the ventilation and lighting effects of a building. The method specifically comprises the following steps: forming an air inlet port and an air outlet port in the wall of each room in the building; arranging an air purification device at each air inlet port; arranging an air exhaust device at the roof of the building; and forming a lighting window without a movable fan at the wall of each room, and arranging flow-limiting valves at the air inlet port and / or the air outlet port. According to the method, the air inlet ports and the air outlet portsare reasonably formed in the wall of the building, air is driven to enter the rooms from the air inlet ports by the air exhaust device and then is exhausted out of the rooms from the air outlet ports,so that adequate ventilation for each room is ensured; moreover, the air exhausted from the interiors of the rooms is converged into a courtyard, and uniformly exhausted from the top of the courtyardvia an air exhaust port, so that a better ventilation effect for the building is achieved; and the lighting window is a totally-enclosed window, and a movable fan window frame does not need to be arranged on the totally-enclosed window any more, so that a better lighting effect is achieved, and the effect of preventing mosquitoes and dust from entering the rooms can further be achieved.

The invention discloses an interlayer air supply air circulation system, and belongs to the technical field of air conditioning systems. The interlayer air supply air circulation system comprises a large circulation unit and a small circulation unit; the large circulation unit comprises a plurality of fan assemblies and an air return duct; the fan assemblies are uniformly installed on the upper part of the room; the small circulation unit comprises a plurality of air supply pipes and an air processing device connected with the air supply pipes; the air supply pipes are uniformly arranged abovethe fan assemblies, and a gap is formed between the air supply pipes and the fan assemblies, an air supply static pressure layer is formed between the air supply pipes and the fan assemblies. The interlayer air supply air circulation system adopts a mode of combining large circulation and small circulation, so that the uniformity of the indoor temperature and humidity field is controlled.

The invention discloses a wind generator with a rotor wind path, which belongs to the technical field of wind generators. The wind generator with a rotor wind path comprises a base, a stator, a rotor,an air inlet and an air outlet, wherein the rotor comprises a rotor bracket and rotor magnetic poles; the rotor bracket comprises a rotor supporting cylinder, a first conical plate and a second conical plate, the first conical plate and the second conical plate are connected with the rotor supporting cylinder, both the first conical plate and the second conical plate are provided with conical plate ventilation holes, the non-driving end of the rotor supporting cylinder is connected with a rotor bracket cylinder, the rotor bracket cylinder is provided with a rotor bracket ventilation hole, a wind shield is arranged on the outer side of the rotor bracket cylinder, and a partition plate is arranged between the rotor bracket cylinder and the base. By adding the rotor wind path design on the basis of the prior art, the problem of insufficient rotor magnetic pole cooling wind power at the non-driving end of the wind generator is solved, and the cooling effect of the wind generator is improved.

The invention discloses a lighting and ventilating system for an intelligent agricultural greenhouse. The lighting and ventilating system comprises a bottom plate, a fixing frame is fixedly connectedto the middle of the upper end of the bottom plate, movable ground frames are arranged at the two sides of the upper portion of the bottom plate, planting mechanisms are arranged at the upper sides ofthe movable ground frames, and an unfolding mechanism used for driving the two movable ground frames to move synchronously is arranged at the inner side of the fixing frame; baffles are fixedly connected to the outer sides of the upper ends of the two movable ground frames correspondingly, side sheds are rotatably connected to the two baffles correspondingly, the upper ends of the two side shedsare rotatably connected with one same ceiling, an upper ventilation opening is formed in the middle of the ceiling, and a mounting frame located under the upper ventilation opening is fixedly connected to the lower side of the ceiling; and a ventilation mechanism is arranged at the inner side of the mounting frame, and a supporting mechanism connected with the fixing frame is arranged at the lowerside of the mounting frame. According to the lighting and ventilating system, sufficient lighting and ventilation of the greenhouse can be guaranteed, then the yield of crops in the greenhouse is increased, operation is convenient and fast, and time and labor are saved without manual work.

The invention provides a welding back ventilation protection device and a welding back ventilation method. The welding back ventilation protection device is used for welding an impeller; the impeller comprises a wheel body and a blade welded to the wheel body; the device is characterized by comprising a ventilation seat and two ventilation structures, wherein the ventilation seat is provided with a ventilation passage connected with an air source; the two ventilation structures are fixedly connected to the ventilation seat and are spaced from each other; a welding region for accommodating the blade is arranged between the two ventilation structures; the ventilation structures are provided with at least one air outlet small hole; the air outlet small hole faces towards the welding region. The welding back ventilation protection device ventilates directly, so the ventilation time can be saved.

The invention discloses a slotting type wind turbine blade device and a slotting method thereof. The slotting type wind turbine blade device comprises a blade body; the blade body comprises a positivepressure face and a back pressure face; a gap communicating with the positive pressure face and the back pressure face is formed inside the blade body, the gap comprises a gas inlet located in the positive pressure face and a gas outlet located in the back pressure face, and after gas flows into the gap from the positive pressure face and then flows out from the back pressure face. The slotting method thereof has the beneficial effects that an extra gas source is not needed, an extra device does not need to be additionally arranged on the surface of a fan blade, and flow control is achieved;high-pressure gas on the positive pressure face is introduced into a low-pressure area on the back pressure face, so that the flow velocity of the positive pressure face is reduced, the pressure of the positive pressure face is increased, in addition, the flow velocity of the back pressure face is increased, the pressure of the back pressure face is reduced, and the lift of the blade is further improved. Compared with the mode that a vortex generator is directly installed on the surface of the blade, damage to the surface of the blade is small, extra resistance cannot be brought under the small attack angle, and it is guaranteed that the aerodynamic performance in the non-flow control state is not reduced.

The invention relates to the technical field of edible mushroom cultivation, in particular to an outdoor toadstool cultivation method for improving toadstool quality. According to the method, an appropriate toadstool cultivation site is selected, and ditches and ventilation furrows are dug in the cultivation site, so that a toadstool growth environment is sufficient in ventilatory capacity and provides appropriate water, lithospermumerythrorhizon and honeysuckles are planted on two sides of each ditch, nettles and castor-oil plants are planted on the periphery of the cultivation site, and theeffects of expelling injurious insects and mice and preventing infectious microbes from entering the cultivation site are achieved. In addition, by adopting the outdoor toadstool cultivation method, the amino acid content of artificially cultivated toadstool can be increased, the nutrition value of the artificially cultivated toadstool is further improved, and the quality of the toadstool can be improved.

The invention discloses a clothes hanger overlapping preventive appliance which comprises elastic buckles or chucks and a spacing rod. The elastic buckles or chucks are arranged at two ends of the spacing rod. The clothes hanger overlapping preventive appliance has the advantages that a certain distance between clothes hangers can be constantly kept in entire airing procedures, overlapping of the clothes hangers can be prevented, and the clothes hanger overlapping preventive appliance is favorable for sufficiently ventilating and airing clothes; certain small clothes further can be aired on the clothes hanger overlapping preventive appliance, and accordingly clothes airing spaces can be increased.