50results about How to "Timely ventilation" patented technology

The invention provides an Internet of things gas monitoring and warning device. The device comprises a central processing unit part, sensor parts, communication parts, a data storage part and a power supply part. A three-colored backlight liquid crystal display is used as a liquid crystal display part; sensors comprises 1-5 types of gas sensors, a dust sensor and a temperature and humidity sensor; the communication parts comprise a short-distance wireless transmission / receiving module and a GPRS (General Packet Radio Service) wireless transmission / receiving module; and the data storage part comprises a data recording and storing part of a USB (Universal Serial Bus) interface. According to the device disclosed by the invention, measured data is transmitted to a gateway of a group customer (such as telecom operators) by utilizing a short-distance wireless function or the measured data is uploaded to a service platform of a relative management department or the group customer by utilizing the GPRS function; a cell phone short message and a cell phone remote controller, an electronic message board, long-distance data collection, control instruction sending and the like are provided; and the Internet of things gas monitoring and warning device is connected with a service management platform of a property management system to form indoor monitoring and controlling terminal and equipment applied to internet of things.

The invention discloses a method for soilless seedling raising method for chilli by an organic waste combined medium mainly. The method is characterized by comprising the following steps of: building a cultivation groove with the length of 6-7 meters and the width of 0.50-1m by using bricks in a greenhouse, paving a layer of plastic film with the thickness of 0.10mm at the bottom of the cultivation groove, and pressing the outer edges of the film below the bricks; selecting slag, cow dung, corn stalks and biogas residues as media, crushing the air-dried corn stalks by using a feeder grinder, sieving by using a sieve with the sieve diameter of 3-5mm, and mixing with 2 percent of urea; crushing the slag and the biogas residues, mixing with 1 percent of urea, uniformly mixing the media, sieving by using a sieve with the sieve diameter of 2-3mm, filling in the arranged cultivation groove, compacting, and introducing clear water until the water is 70 to 80 percent of the maximum water-holding capacity of the media; and selecting germinated seeds, sowing in the depth of 1cm, covering the media with the thickness of 0.50cm, and lightly spraying water once by using a watering pot.

The invention provides a household gas tank human-friendly intelligent control system and relates to a control system and a control method thereof. The system comprises a power supply module, a sensor module, a single-chip microcomputer module, a storage module, a relay module, a ventilating device, an alarm and display module, a communication module and a control terminal. The method comprises the following steps: the sensor module collects data of a gas tank in real time and transmits the collected data to the single-chip microcomputer module; the single-chip microcomputer module processes the data and then, keeps the data to the storage module, and meanwhile, sends the data to the control terminal through the communication module and a network; and if judging the data is abnormal, the single-chip microcomputer module sends a short message to notify or remind a user, and meanwhile, carries out alarm and display, and when judging gas leaks, drives a driver module to start the ventilating device. The system can realize human-friendly intelligent control of the gas tank, has the advantages of being safe and reliable to use, fast in data transmission speed, long in distance, high in quality, low in cost and simple to operate and the like, and has wide market prospect.

The invention discloses an intelligent wardrobe control and management system, comprising: a function execution component, a main controller, a touch display terminal, a power supply module, a cloud server and a plurality of service providers, wherein the power supply module supplies power to the function execution component, the main controller and the touch display terminal; the function execution component obtains and adjusts an environmental condition in a wardrobe and automatically stores and takes clothes; the touch display terminal displays a working state of the function execution component, the environmental condition of the wardrobe, and a classification condition and placement locations of the clothes, and sends a corresponding instruction to the main controller, and the main controller controls the function execution component to execute a corresponding action; the cloud server obtains shared data shared by the touch display terminal and service contents provided by the service providers, and recommends appropriate service contents to the touch display terminal according to the shared data. The intelligent wardrobe control and management system disclosed by the invention can provide an optimal dressing scheme for a user based on big data calculation, and can also automatically adjust the environmental condition of the wardrobe and automatically store and take the clothes, thereby being convenient and intelligent.

The invention discloses a vegetable seedling-raising device, and relates to the technical field of seedling-raising equipment. The vegetable seedling-raising device comprises a seedling-raising box, the seedling-raising box is horizontally provided with a partition plate in a partitioned mode, the partition plate partitions the inner cavity of the seedling-raising box into a first seedling-raising room and a second seedling-raising room, an opening of the seedling-raising box is provided with movable doors corresponding to the first seedling-raising room and the second seedling-raising room, the inner cavity of the first seedling-raising room and the inner cavity of the second seedling-raising room are both provided with seedling-raising basins, water pipes and heating pipes, the seedling-raising basins are suspended in the seeding-raising box, a draining hole is formed in the bottom face of each seedling-raising basin, the heating pipes are arranged at the top of the inner cavity of the first seedling-raising room and at the top of the inner cavity of the second seedling-raising room, the water pipes are arranged below the heating pipes, and the water outlet end of each water pipe is provided with a spraying head. According to the vegetable seedling-raising device, seedling-raising operation of vegetable seeds is provided, the moisture and temperature of the seedling environment can be controlled in the seedling-raising process, the germination rate of the seeds is high, the occurrence rate of diseases is low, and the device is convenient to operate and flexible to use.

The invention discloses a multifunctional ventilating and freshness retaining refrigerator. Ventilation and freshness retaining of the refrigerator are necessary. The quality of air in the refrigerator can be visually known through a display screen; by a ventilation indicator lamp and a defrosting indicator lamp, ventilation, deodorization and defrosting of the refrigerator can be carried out by a user conveniently in time; an air feeding tube is in sleeving connection with an air discharging tube, so that the temperature can be changed conveniently; and owing to the multifunctional refrigerator, the user feels comfortable in the daily life.

The invention discloses a poultry breeding management system which comprises a foot ring, a terminal and a mobile terminal, the foot ring comprises an acquisition module, a first communication moduleand a first storage module, the acquisition module is connected with the first communication module and the first storage module, and the first communication module is connected with the first storagemodule; wherein the input module, the display module, the data read-write module, the second storage module and the second communication module of the terminal are respectively connected with the main control unit, and the data read-write module is in communication connection with the first communication module; and the mobile terminal is in communication connection with the second communicationmodule. The system has the advantages that a consumer can read the information data stored in the first storage module, and poultry products can be traced; a farmer can also monitor the poultry farming according to the terminal; a manager can issue instruction information to farmers in time according to data information in the poultry breeding process on the terminal so as to guide the farmers tobreed scientifically.

The invention provides an electromagnetic self-closing valve. The electromagnetic self-closing valve is mainly characterized in that the waist portion of the interior of a valve cover is provided with an annular soft magnetic sheet, and the upper portion of the interior of the valve cover is provided with an electromagnetic coil and a support of the electromagnetic coil; an iron core is inserted into the middle of the support in a penetrating mode, the upper end of the iron core is in series connection with a carrying handle through a screw, the lower end of the iron core is closely connected with a pull rod, the end surface of the bottom of the pull rod is buckled with a membrane with a buckle, and an annular magnet is tightly fastened on the upper portion of the pull rod. According to the electromagnetic self-closing valve, when the valve is opened, normal output of gas is kept through the self gas pressure in a gas pipe network, and the valve is automatically closed when the pressure is dropped due to the fact that the pipe network gas is suddenly stopped; before gas supplying is recovered, a gas company does not need to send a person to visit a house to give notification, the gas can be supplied, and therefore labor is also saved; when gas leakage occurs, an alarm sends out an alarm sound, and the valve is automatically closed. The electromagnetic self-closing valve has the advantages that the structure is simple, the safety and reliability are achieved, and automatic close-distance control is easy to achieve due to the fact that the valve is connected with control equipment such as the alarm.

The invention discloses an automatic ventilation plant. The automatic ventilation plant comprises a plant body. A plurality of ventilation devices capable of ascending and descending are arranged on a roof of the plant body. Each ventilation device comprises a ventilation pipe body, wherein a filtering and dust removing interlayer is arranged in the middle of the ventilation pipe body, the ventilation pipe body is arranged in a through hole of the roof, a step face is arranged above the through hole, annular bosses are arranged at the two ends of the ventilation pipe body, an air inlet / air outlet is formed in the upper end of the ventilation pipe body, and an air outlet / air inlet is formed in the lower end of the ventilation pipe body. A control device is arranged on the side wall of the plant body, the control device controls opening of the air inlets and the air outlets in the ventilation pipe bodies, and a pressure sensor is arranged below each ventilation pipe body. According to the automatic ventilation plant, the top of the plant body is provided with the multiple ventilation devices capable of ascending and descending for ventilation, the ventilation devices are automatically controlled according to the pressure, the temperature and the like in the plant, and the automatic ventilation plant is very convenient to use.

The invention discloses a method for planting cucumbers in a greenhouse in winter. The method is characterized by including the steps: variety selection; seed sprouting; seedbed preparation; seed sowing; seedling separation; greenhouse building; planting; frame insertion, vine tying and shaping; artificial insemination; fruiting period management; fruit picking. According to the method, the temperature the greenhouse is controlled and stabilized, garden soil, seeds, young seedlings and the like are disinfected, watering and fertilizer applying are scientifically and reasonably are performed, ventilation is timely performed, growth of the cucumbers stems is accelerated, diseases and insect pests of the cucumbers are reduced, the yield and the quality of the cucumbers are improved, and the method is simple to operate, green and free from pollution.

The invention discloses a mobile terminal and an ozone concentration detection method. The mobile terminal comprises: a display screen, a loudspeaker and an ozone concentration detection unit. The ozone concentration detection unit comprises: an ozone concentration detector and a data conversion module, wherein the ozone concentration detector is used to detect an ozone concentration; the data conversion module is used to convert the ozone concentration detected by the ozone concentration detector into a digital signal and send to the display screen so as to display. By using the terminal and the method of the invention, people can timely and conveniently know the current ozone concentration.

The invention discloses an air monitoring system for improving the live pig raising quality. The air monitoring system comprises a gas sensor, a ventilation fan and a controller, the gas sensor is mounted in a pig house, the ventilation fan is mounted on the sidewall of the pig house, the gas sensor and the ventilation fan are respectively electrically connected with the controller, the gas sensorcomprises a shell internally having a cavity, an air inlet nozzle and an air outlet nozzle which are in threaded connection with the shell are arranged at one end of the shell, a waterproof joint inthreaded connection with the shell is arranged at the other end of the shell, an explosion-proof filter, a gas detection element and a circuit board are sequentially arranged in the shell from the airinlet nozzle end to the waterproof joint end, an air guiding channel is arranged between the air inlet nozzle and the explosion-proof filter, and one end, close to the air inlet nozzle, of the air guiding channel is in threaded connection with the shell. The air monitoring system with the above structure has the advantages of high monitoring precision, fast response speed, high sensitivity and strong explosion-proof performance.

The invention provides a video conference site intelligent monitoring system, which utilizes a central processing device, a sound sensor, a signal processing circuit, a light sensor, an image acquisition module, an image processing module, a microphone adjustment module, a light adjustment module, a storage module, a wireless communication module, a display module, and a carbon dioxide sensor to automatically adjust the sound and light of the video conference phenomenon, so that images of the video conference site collected by the image acquisition module are clearer, and the effect of the video conference site is better. The image processing module sequentially performs image smoothing, image enhancement and image sharpening processing on the images acquired by the image acquisition module, and can efficiently and quickly extract the image information of the video conference site acquired by the image acquisition module, which can improve the recognition accuracy of the images and effectively reduce the occurrence of false positives.

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 an open type safety top window, which comprises a window frame base mounted on an automobile; A sunroof cover panel assembly pivoted on one side of the window frame base, two sides of adjacent pivots of the sunroof cover panel assembly are respectively connected with the window frame base through movable anti-clip side arms, and the sunroof cover panel assembly opens or closes the window frame base through a switch; And an air grouting assembly or an air exhaust assembly installed on the roof panel assembly; the air grouting assembly fills the vehicle with air, and theexhaust assembly discharges air from the vehicle. The invention automatically filters the air inside and outside the vehicle by arranging independent air filling assembly or exhaust assembly on both sides of the roof cover assembly, thereby avoiding the trouble of low ventilation efficiency in the past.

The invention relates to a garbage conveying device. The device is applied to the garbage automatic collection system and carries out garbage transportation operation under the control of a control center. The device comprises a plurality of garbage throwing mechanisms for throwing in and delivering garbage. A garbage temporary storage and crushing mechanism for temporary storing and crushing the garbage is communicated with the lower parts of the garbage throwing mechanisms, and a garbage storage mechanism for storing the crushed garbage is communicated with the lower part of the garbage temporary storage and crushing mechanism. The bottom of the garbage storage mechanism is communicated with a spiral feeding mechanism for spiral stirring and delivering broken garbage, and the discharge port of the spiral feeding mechanism is connected with a garbage discharge passage. The garbage discharge passage is provided with a discharge valve, the end of the garbage discharge passage away from the spiral feeding mechanism is provided with a suction port, and the suction port is used to connect a suction transfer device with a negative pressure power source device to form the negative pressure required to suck the garbage into the garbage discharge passage.

The invention discloses a tunnel ventilation pipeline construction car, which comprises a walking trolley, a walking drive mechanism, a pipeline stretching and retracting device, an electric pipeline stretching and retracting drive mechanism and an electronic circuit board, wherein a winding shaft of the pipeline stretching and retracting device is continuously wound with flexible air pipes from inside to outside; the rear end part of each flexible air pipe is connected with an electric ventilator air supply outlet arranged at a construction tunnel opening; the front end part of each flexible air pipe is fixedly arranged on the walking trolley through a temporary fastening piece; the front end part of each flexible pipe is connected with an air outlet for feeding fresh air to a tunneling working face of the construction tunnel; the electronic circuit board is provided with a controller, a walking direction detection unit, a walking position detection unit, an air supply amount detection unit and a first wireless communication module. The tunnel ventilation pipeline construction car is simple in structure, reasonable in design, simple and convenient to operate, high in intelligent degree and good in use effect; and with the adoption of the tunnel ventilation pipeline construction car, the problems of high on-site workload, more manpower and material resources needed to be invested, inconvenient use operation and poorer ventilation effect and the like existing in a tunnel ventilation construction manner can be solved.

The invention discloses a braking disc for railway vehicles, which is made of vermicular graphite cast iron. The chemical composition by weight is: 3.45%-3.77% of carbon, 1.86%-2.25% of silicon, 0.5%-0.8% of manganese, less than or equal to 0.02% of sulfur and less than or equal to 0.05% of phosphorus, and the balance is iron, wherein vermicular rate of the vermicular graphite cast iron is larger than or equal to 60%. The braking disc is formed by a left disc body, a right disc body, a first radial connection rib and a second radial connection rib, the diameter of the left disc body is identical to that of the right disc body, the left surface of the left disc body and the right surface of the right disc body are braking work surfaces, and roughness of the two braking work surfaces is respectively 1.6mm-3.2mm. The braking disc for railway vehicles prevents cracks from generating through material replacement and structure adjustment and further avoids safety accidents. The braking distance of the braking disc is moderate, and the braking disc is simple in structure, easy to manufacture, has good economic and technological value and is suitable for large-scale popularization and application.

The invention belongs to the technical field of hospital archives management, in particular to a multifunctional file storage device for hospital archives management. Specific to the problem that accidents happen easily during archives storage so that archives are damaged, the invention provides the following scheme that the multifunctional file storage device comprises a storage box body, the same division plate is fixed on inner walls on two sides, which are close to the top, of the storage box body through screws, an outer wall at the top of the division plate is provided with uniformly distributed first round holes, the same vertical division plate is fixed between the division plate and an inner wall at the bottom of the storage box body through screws, and first transverse division plates are fixed between the vertical division plate and the inner walls on the two sides of the storage box body. The multifunctional file storage device has a novel structure and diverse functions, temperature and humidity in the file storage device as well as situations such as unexpected fire disaster can be timely detected, a warning device can timely raise the alarm, the staff can conveniently and timely process files, the damage to the files is prevented, and the file storage safety is improved.

The invention relates to the technical field of automatic raising boxes, and discloses a device used for automatic raising and breeding of nipponia nippon. The device used for automatic raising and breeding of the nipponia nippon comprises a raising box, wherein the raising box comprises fixing legs, a water injection pipe, an L-shaped supporting frame and a supporting board, the water injection pipe is arranged on the right side of the raising box, a tap water pipe is connected with one end of the water injection pipe, the other end of the water injection pipe penetrates through a right wallof the raising box, and extends into the raising box, one end of the L-shaped supporting frame is fixedly connected with the left surface of the raising box, the back surface of the supporting board is fixedly connected with the front surface of the interior of the raising box, a box door is arranged on the top of the raising box, and the raising box is internally provided with a manure box, a water tank, a raising table, a feeding box and an air supply box. The device used for automatic raising and breeding of the nipponia nippon has functions of timely manure clearing and ventilation, the water tank device is added, multiple functions are integrated, the automation degree is high, the labor cost is saved, and a nipponia nippon raising environment is greatly improved, so that constitutions and the reproductive capacity of the nipponia nippon are enhanced, and a number of laid eggs and a fertilization rate are increased.

The invention discloses energy-efficient ventilation equipment for a green building. The energy-efficient ventilation equipment structurally comprises a mounting seat, impeller blades, a protection cover, a main body, a base, an automatic ventilation device, a connecting box, an end cover, a ventilation motor, a connecting piece and a rotating shaft; the impeller blades are embedded into the outersurface of the mounting seat; and the protection cover is arranged on the outer sides of the impeller blades. The energy-efficient ventilation equipment for the green building is structurally provided with the automatic ventilation device connected with the connecting box, heat is transferred to a heat conduction plate by a heat sensor, mercury in a mercury cavity is heated to expand, and a piston is pushed to move leftwards to drive an ejection rod to slide leftwards, a control board is electrified, a cooperation gear is controlled to rotate, a movable rack engaged with the cooperation gearwhich is located on the inner side of a sliding rail slides leftwards, a movable contact is in contact with a stationary contact accordingly, and the connecting box is switched on, thereby achieving the purpose of automatic ventilation; and then resetting is carried out by a reset lever, so that ventilation is stopped. In this way, both timely ventilation and energy conservation can be realized.

The invention discloses a window used for detecting indoor toxic-harmful gas and capable of performing automatic ventilation. The window used for detecting the indoor toxic-harmful gas and capable ofperforming automatic ventilation comprises a working box. A glass installation cavity is formed in the working box in a penetrating front and back mode, fixed glass is fixedly arranged in the glass installation cavity, left-right symmetrical working sliding grooves located on the rear side of the fixed glass are formed in the left inner wall and the right inner wall of the glass installation cavity, power mechanisms are arranged on the bottom walls of insides of the working sliding grooves, a rainwater judging mechanism is arranged on the end surface of the front side of the working box, and agas detector is fixedly arranged on the end surface of the rear side of the working box. According to the window used for detecting the indoor toxic-harmful gas and capable of performing automatic ventilation, real-time monitoring of indoor formaldehyde and other toxic and harmful gas is achieved, and it is guaranteed that the room can be ventilated in time when abnormal air is detected, when raining exists outside, the window is automatically closed according to the raining condition, and it is guaranteed that indoor economic loss due to bad outside weather is not caused.

The invention discloses an intelligent agricultural greenhouse based on sensor data collection. Connecting plate, first arched beam, first fixing box, push-pull mechanism, a fixing plate and a secondarched beam, a fixing ring and a second fixing box, the greenhouse comprises an arch-shaped supporting plate, a baffle, a greenhouse door, a fan, a supporting block, a CPU, an alarm, a soil humidity sensor, a supporting rod, an LED lamp, a connecting plate, an Ethernet communication module, a first receiving circuit module, a second receiving circuit module, an on-off controller, a temperature sensor, a carbon dioxide concentration sensor, a wireless router, a first clamping block, a first supporting roller and a first carrier roller shaft. The beneficial effects of the invention are that thesystem is higher in intelligentization, saves time and labor, and is more convenient in use method; and the temperature, humidity and carbon dioxide concentration in the greenhouse can be monitored intime, so that the crop yield is relatively high.

The invention discloses an automatic-ventilation storage device for packaged rice. The automatic-ventilation storage device comprises a plurality of ventilating passages which are constructed by adopting arc-shaped ventilating pipes, wherein a plurality of ventilation holes are uniformly formed in the surface of each arc-shaped ventilating pipe, the packaged rice is laid on the arc-shaped ventilating pipes, and an air blower is arranged inside or on the side face of each ventilating passage; and a flattening device is arranged in at least one end direction of the ventilating passages of the arc-shaped ventilating pipes and comprises a power source, a cross beam, a T-shaped push rod and a flattening unit, the T-shaped push rod is telescopically connected to the cross beam, the power source is fixed on the T-shaped push rod and is used for driving the T-shaped push rod to do reciprocating telescopic motion, the flattening unit is of an arc-shaped structure, and an arc-shaped opening of the flattening unit faces to a direction of advance of the packaged rice required to be pushed. According to the automatic-ventilation storage device for the packaged rice, disclosed by the invention, the ventilated storage capability of the packaged rice is improved, and the condition that the packaged rice can be stored for a period of time without deterioration and can also have relatively good taste is guaranteed.

The invention discloses a comprehensive powder metallurgy sintering operation system and an operation method. The comprehensive powder metallurgy sintering operation system comprises a magnetic attraction type powder forming device, the magnetic attraction type powder forming device comprises a pressing block, a magnetic attraction body and a forming cavity, the magnetic attraction body magnetically attracts magnetic metal powder downwards, and the pressing block stretches into the forming cavity to press the magnetic metal powder downwards; the system further comprises a high-temperature liquid wrapping and protective atmosphere flowing type powder metallurgy sintering device, the high-temperature liquid wrapping and protective atmosphere flowing type powder metallurgy sintering device comprises a high-temperature liquid wrapping part and a protective atmosphere circulating flowing supply part, and the high-temperature liquid wrapping part comprises a high-temperature sintering cavity, a molten metal forming cavity, a liquid distribution cavity and molten metal wrapping cavities; molten metal in the molten metal forming cavity is distributed through the liquid distribution cavity and flows into all the molten metal wrapping cavities. and the protective atmosphere circulating flowing supply part is used for circularly supplying a protective atmosphere into the high-temperature sintering cavity at a constant speed. The system and the method have the advantages that blank compaction forming is tight and solid, and high-temperature sintering is uniform and efficient.

The invention relates to the technical field of coal mine outburst elimination, in particular to an underground extraction outburst elimination device and an operation method thereof. The device comprise a frame, wherein a treatment chamber is arranged on the frame, a foundation support is externally arranged on the front side of the treatment chamber, a main support is arranged on the foundationsupport, a steering wheel is arranged at the bottom end of the main support, an operation frame is arranged on the steering wheel, the bottom end of the operation frame is provided with an extractionmechanism through a locking installation sleeve, a main body of the extraction mechanism is a tubular outer fixed frame, the tubular outer fixed frame is provided with a water pumping channel and a gas production channel, the gas production channel is provided with an air flow end, the air flow end is obliquely arranged at the outer wall position of the tubular outer fixed frame, and the air flowend is obliquely inclined upwards and forms an included angle of 90 degrees with a rotary earth drilling rack. According to the device, the integrated separation type treatment adopts an independent operation system, so that no interference exists between water pumping and air pumping.

The invention discloses a barley steeping germination device used for sesame seed candy, comprising a barley steeping device and a germinating device, wherein the barley steeping device comprises a barley steeping though, the lower part of the barley steeping trough is a circular truncated cone bottom, the circular truncated cone bottom is in funnel shape and the bottom is arc, and a ventilating pipe is arranged in the barley steeping device; the germinating device comprises a germinating box and a germinating bed, the germinating box is divided into three chambers which are arranged side by side and are respectively an initial-stage box, a middle-stage box and a later-stage box; and the germinating bed can be held in the germinating box. By adopting the barley steeping germination deviceused for sesame seed candy, uniform ventilation of the barley steeping trough is realized, waste gas such as CO2 can be discharged timely, and the temperature of a barley layer is precisely controlled, thus realizing precise control on the barley germinating process.

The invention discloses an efficient ventilating and storage device for packaged rice. The efficient ventilating and storage device comprises a plurality of ventilating channels erected through arc-shaped ventilating pipes, a plurality of ventilating holes are evenly distributed in the surface of each arc-shaped ventilating pipe, the packaged rice is laid on the arc-shaped ventilating pipes, and an air blower is arranged in each ventilating channel or on the surface of each ventilating channel. A bulldozing device is arranged in the direction of at least one end of each ventilating channel of the arc-shaped ventilating pipes, and an automatic feeding device is further arranged at the position close to each bulldozing device; each bulldozing device comprises a power source, a cross beam, a T-shaped push rod and a bulldozing device, each bulldozing device is of an arc-shaped structure, and an arc-shaped opening of each bulldozing device faces the advancing direction of the packaged rice needing to be pushed. According to the efficient ventilating and storage device for the packaged rice, the ventilating and storage capacity of the packaged rice is improved, and it is guaranteed the packaged rice cannot go bad after being stored for a period of time and can still have good taste.

The invention discloses a window used for detecting indoor toxic-harmful gas and capable of performing automatic ventilation. The window used for detecting the indoor toxic-harmful gas and capable ofperforming automatic ventilation comprises a working box. A glass installation cavity is formed in the working box in a penetrating front and back mode, fixed glass is fixedly arranged in the glass installation cavity, left-right symmetrical working sliding grooves located on the rear side of the fixed glass are formed in the left inner wall and the right inner wall of the glass installation cavity, power mechanisms are arranged on the bottom walls of insides of the working sliding grooves, a rainwater judging mechanism is arranged on the end surface of the front side of the working box, and agas detector is fixedly arranged on the end surface of the rear side of the working box. According to the window used for detecting the indoor toxic-harmful gas and capable of performing automatic ventilation, real-time monitoring of indoor formaldehyde and other toxic and harmful gas is achieved, and it is guaranteed that the room can be ventilated in time when abnormal air is detected, when raining exists outside, the window is automatically closed according to the raining condition, and it is guaranteed that indoor economic loss due to bad outside weather is not caused.

The invention discloses a heat exchange ventilating fan. The heat exchange ventilating fan comprises multiple isolating walls. The isolating walls are arranged in parallel from one side of the heat exchange ventilating fan to the other side of the heat exchange ventilating fan. A sealing cavity is defined by every two adjacent isolating walls to serve as an air outflow cavity or an air inflow cavity. Multiple air outflow cavities and multiple air inflow cavities are formed among the isolating walls and arranged at intervals. The air outflow cavities communicate with one another to form an air outflow channel allowing indoor air to be discharged out of a room. The air inflow cavities communicate with one another to form a fresh air inflow channel allowing outdoor air to enter the room. The isolating wall on the outermost side and the isolating wall on the innermost side of the heat exchange ventilating fan are each provided with air outflow holes allowing the indoor air to be discharged out of the room and fresh air inflow holes allowing outdoor air to enter the room. The air outflow holes communicate with the air outflow channel, and the fresh air inflow holes communicate with the fresh air inflow channel. By the adoption of the heat exchange ventilating fan, heat or cold energy in the building room can be stored effectively in the ventilation state, and energy saving is facilitated.