19results about How to "Fast ventilation" patented technology

The invention discloses a transport package simulation test box and a use method, and relates to the technical field of simulation tests.The transport package simulation test box comprises a test mechanism and a pressure test block installed at the bottom of the test mechanism, a box body mechanism is arranged on the outer side of the test mechanism, moving wheels are arranged at the bottom of the box body mechanism, and the test mechanism comprises a test air cylinder; a clamping support is fixedly installed at the bottom of the testing air cylinder, a humidifying water tank is fixedly installed on one side of the top of the clamping support, a water tank plug is in threaded connection with one side of the top of the humidifying water tank, a plurality of connecting pipes are fixedly connected to one side of the bottom of the humidifying water tank, humidifiers are fixedly installed at the ends of the connecting pipes, and the water tank plug is in threaded connection with one side of the top of the clamping support. The product is placed in a specific temperature and humidity environment, the performance of the product under different temperature and humidity conditions and the integrity of the package are checked, the packaged product is pushed by the top to rapidly fall down and fall onto a rigid plane from different heights, and the bearing capacity of the product and the package to falling impact is evaluated.

The present invention belongs to the technical field of cable branch boxes, and in particular to a cable branch box with heat dissipation holes that are wind and rainproof. In view of the problems that the existing cable branch boxes are prone to overheating during use, which affects the service life of the equipment, and may also cause damage to the equipment due to heavy snow accumulation, and it is inconvenient to install and fix the cable connector, the following scheme is proposed, which includes a box body, and four symmetrically arranged support seats are fixedly installed on the bottom inner wall of the box body, and the top of the four support seats is fixedly installed with the same placement plate, and a connector is placed on the top of the placement plate, and a plurality of cables are installed on one side of the connector. The present invention is simple to operate and easy to use, and can facilitate rapid ventilation in the cable branch box and prevent rainwater from infiltrating, and can also facilitate the installation and fixation of the connector, and can also facilitate the shaking off of snow on the cable branch box to prevent damage to the box body due to excessive weight.

The utility model discloses safe laboratory intelligent ventilation equipment, which relates to the technical field of ventilation equipment and comprises an operation table, a ventilation mechanism, an adsorption box, a first servo electric cylinder, an air guide barrel, an air suction opening, an air guide opening and a first corrugated pipe. The adsorption box in the ventilation mechanism provides an adsorption material in the ventilation mechanism, gas generated in an experiment can be effectively subjected to preliminary adsorption and purification treatment, the pressure of subsequent ventilation and purification treatment can be effectively relieved, the air suction opening in the bottom of the air guide barrel is used for carrying out air suction treatment on the gas generated in the experiment, and the air suction efficiency is improved. An air guide opening in the top of the air guide barrel is used for conveying air in the air guide barrel into the adsorption box, a first servo electric cylinder stretches out and draws back, the distance between an air suction opening and an operation table can be effectively adjusted, air suction treatment can be conducted on the air generated in the experiment process nearby and rapidly, and the experiment efficiency is improved. Rapid air suction and ventilation guide treatment on toxic gas or irritant gas generated in the experiment process can be effectively improved.

The utility model relates to the technical field of sewage treatment station construction equipment, and discloses centralized sewage treatment station efficient construction equipment which comprises a vehicle body and a control assembly, the control assembly is arranged in the vehicle body, a ventilation groove is formed in one side of the vehicle body, and a fixing shell is fixedly connected to the top end of the vehicle body. First assembling holes are formed in the two sides of the bottom end of the front end of the vehicle body, a base is fixedly connected to the bottom end of the vehicle body, a reserved groove is formed in the base, and an air cylinder is fixedly installed in the reserved groove. According to the efficient construction equipment for the centralized sewage treatment station, the base and other parts are arranged, the connecting sleeve is connected to the outer portion of the round base in a sleeving mode and can rotate, the two sets of compaction rollers are arranged, when the compaction rollers need to be replaced, an air cylinder is opened, a telescopic rod is used for pushing a fixing base to move towards the front end, and at the moment, the round base can be separated from the interior of the connecting sleeve; therefore, the compaction roller can be conveniently and quickly replaced, and the problem that the compaction roller is inconvenient to quickly replace is solved.

The utility model discloses an environment-friendly plant cultivation device for environmental art design, which comprises a base, the top end of the base is fixedly connected with a support frame, the two sides of the bottom of the base are fixedly connected with fixed chutes, the two ends of the bottom of each fixed chute are fixedly connected with support columns, and the top end of the base is provided with a planting groove. According to the plant environment-friendly cultivation equipment for environmental art design, by arranging a water guide bin, a water pump, a water pumping pipe, a water guide pipe, a water storage tank and a water spraying opening, the water pump can be started at regular time through a controller during cultivation, the water pump pumps out water in the water storage tank through the water pumping pipe, and then the water is guided into the water guide bin through the water guide pipe; after being shunted by the water guide bin, water is sprayed out through the water spraying openings to water plants in the planting groove, the starting time of the water pump can be controlled according to the plant types, and therefore the watering amount is controlled, and the problem that automatic watering cannot be achieved is solved.

The utility model discloses a limited space ventilation device which comprises a machine box and a ventilation head assembly, the ventilation head assembly comprises an air inlet main pipe, the bottom end of the air inlet main pipe is fixedly connected and communicated with an air inlet conical opening, the cross section area of the bottom end of the air inlet conical opening is larger than the area of the top end of the air inlet conical opening, and a plurality of L-shaped exhaust pipes are evenly arranged on the peripheral side of the air inlet main pipe. A plurality of first supporting rods are horizontally and fixedly connected between the side walls of the L-shaped exhaust pipes and the side wall of the air inlet main pipe, and a plurality of second supporting rods are uniformly, horizontally and fixedly connected to the peripheral side of the top end of the air inlet main pipe; the ventilation head assembly is used for ventilation, fresh air enters the ventilation head assembly through the air inlet conical opening, the air can enter the ventilation head assembly downwards in a diffusion mode, meanwhile, the L-shaped exhaust pipe can extract original air in the space, suction force is applied to the surrounding original air to extract the surrounding original air, and therefore the original air can enter the L-shaped exhaust pipe upwards; in this way, original high-density air in the limited space is assisted to be discharged, the discharging speed is higher, ventilation can be conducted quickly in cooperation with entering of fresh air, and the efficiency is higher.

The utility model relates to the field of ion exchange resin, and discloses a container for ion exchange resin, which comprises a placing main body, two sides of the top of the placing main body are movably connected with turnover sealing cover plates, the top of the placing main body is fixedly connected with a fixing frame, the outer side of the fixing frame is movably connected with a fixing rod, and the fixing rod is fixedly connected with the top of the placing main body. A rotating plate is fixedly connected to the surface of the fixing rod, a moving plate is movably connected to the bottom of the rotating plate, a connecting rod is fixedly connected to the bottom of the moving plate, the bottom end of the connecting rod penetrates through the bottom of the turnover sealing cover plate and is fixedly connected with a pulling plate, and a ratchet wheel is fixedly connected to the surface of the fixing rod; the outer side of the fixing frame is fixedly connected with a supporting plate. According to the ventilation device, through mutual cooperation of the fixed rod, the rotating plate and the movable plate structure, the turnover sealing cover plate is driven to be opened to work through the connecting rod and the pulling plate, and ventilation of the interior of the containing body is achieved after the turnover sealing cover plate is conveniently opened.

A back plate comprises an outer back plate body and an inner back plate body, the outer back plate body and the inner back plate body are arranged at intervals, a buffer space is formed between the outer back plate body and the inner back plate body, the inner back plate body is located on the side, close to a wardrobe door, of the outer back plate body, a fan is arranged on the outer back plate body, and the inner back plate body is located on the side, close to the wardrobe door, of the inner back plate body. The fan is used for conveying airflow into the buffer space from the outer side of the wardrobe, an air supply outlet is formed in the inner back plate, and an air outlet capable of being opened and closed is formed in the wardrobe door; the wardrobe integrates moisture prevention, dust prevention and ventilation, special door opening for ventilation is not needed, a walking channel cannot be blocked, and practicability is high.

The utility model discloses a building hanging steel structure lighting skylight, which relates to the technical field of building skylights and comprises a skylight body, an outer circular sleeve frame is fixedly mounted outside the skylight body, a rotating ring cover is fixedly mounted outside the outer circular sleeve frame, and the rotating ring cover consists of a connecting part and a rotating part. A plurality of mounting holes are formed in the upper side and the lower side of the connecting part at equal angles, rolling balls are rotatably mounted in the mounting holes, a fixing ring seat is arranged outside the connecting part, a mounting groove is formed in the fixing ring seat, and a driving assembly is arranged outside the rotating part. According to the building hanging steel structure lighting skylight, the rotating ring cover, the fixing ring base, the mounting groove and the driving assembly are arranged, rotation of the rotating ring cover is achieved through the driving assembly, namely rotation of the skylight body is achieved, the opening of the skylight body can face the wind direction all the time, and rapid ventilation and air exchange of the interior of a building are achieved.

The utility model relates to the technical field of low-pressure carburization, and discloses a low-pressure carburization vacuum furnace heating chamber capable of quickly exchanging air, which comprises a vacuum furnace provided with a heating module, a furnace cover hinged to the top and a bracket I arranged at the bottom, an air inlet pressure regulating chamber is arranged below the vacuum furnace, the air inlet pressure regulating chamber is connected with the vacuum furnace through a uniform air distribution module, a plurality of air delivery pipes are arranged at the top of the air inlet pressure regulating chamber, the air inlet pressure regulating chamber is connected with a nitrogen source, a carbon source and an air purification module through the air delivery pipes, and a preheating module is arranged in the air inlet pressure regulating chamber; an exhaust pressure regulating chamber is arranged on one side of the vacuum furnace, a vacuum pump is arranged on the vacuum furnace, an exhaust port of the vacuum pump is connected with the exhaust pressure regulating chamber, and an exhaust pump is arranged on the exhaust pressure regulating chamber. Compared with the prior art, the device has the advantages that the pressure difference of the two sides of the vacuum pump can be regulated and controlled, gas in the vacuum furnace can be conveniently and rapidly exhausted, the gas exchange speed in the vacuum furnace is higher, and the gas exchange efficiency is higher.

The utility model provides a circular-truncated-cone-shaped piston electric switch type active ventilation opening, and belongs to the technical field of ventilation opening equipment. The in-wall ventilation pipeline is in a big-end-down circular truncated cone shape and is made of a polypropylene plastic plate or glass fiber reinforced plastic; the fan communicates with the outer side of the ventilation pipeline in the wall body and is located outdoors; the piston is in a big-end-down circular truncated cone shape matched with the ventilation pipeline in the wall body, is located indoors and is used for improving the sealing performance between the piston and the ventilation pipeline in the wall body; and the driving device is used for driving the piston to axially move along the ventilation pipeline in the wall body. The fan is arranged outside, the piston is arranged indoors, the piston moves from bottom to top to achieve extrusion type sealing, the ventilation pipeline in the wall is made of polypropylene plastic plates or glass fiber reinforced plastics, the service life of the fan can be prolonged, the piston is prevented from being quickly frozen under the conditions of cold and high humidity, heat conduction is reduced, and the service life of the fan is prolonged. And the adhesion phenomenon of the piston and the iron ventilation pipe wall during pre-cooling and wetting is prevented.

The invention discloses a fabricated building steel structure, and belongs to the field of steel structure buildings. The fabricated building steel structure comprises stand columns, cross beams, a mounting frame and a roof, the cross beams are fixedly connected between every two adjacent stand columns, the mounting frame is fixed to the tops of the multiple stand columns, the roof is fixed to the top of the mounting frame, the bottoms of the stand columns are fixedly connected with connecting bases, and the fabricated building steel structure further comprises a supporting assembly; the supporting assembly is arranged between the upper cross beam and the lower cross beam and used for improving the stability of the whole framework. According to the ventilation device, the interior of a steel structure building can be rapidly ventilated through the air draft blades additionally arranged in the hollow ring, ventilation airflow is filtered through the filtering cloth bag, the cleanliness of the ventilation airflow is ensured, the filtering cloth bag can be wetted and cleaned in cooperation with clean water flow collected in the water collecting tank, and the ventilation effect is improved. The heat dissipation and dust removal effects are effectively improved, stored rainwater is utilized, and more energy conservation and environmental protection are achieved.

The utility model relates to corn air -drying technical field especially relates to a kind of seed production corn fresh ear air -drying net bin.The seed production corn fresh ear air -drying net bin including mounting seat, mounting seat is equipped with air -drying storage chamber, air -drying storage chamber is by grid board splicing, air -drying storage chamber is fixedly installed ventilation chamber, ventilation chamber is formed by ventilation net around;Two bottom plates are fixedly installed in mounting seat, and the junction of two bottom plates is fixedly welded with middle pipe, and the middle pipe is equipped with exhaust hole, and the bottom of mounting seat is equipped with fan.The seed production corn fresh ear air -drying net bin provided by the utility model, external natural wind can be through ventilation net and grid board to penetrate the whole storage space, realize fresh ear surface layer fast ventilation, while, fan is actively sent to the bottom of storage space by middle pipe, airflow is from bottom to top through fresh ear accumulation layer, so that both form passive ventilation and active ventilation double ventilation design, solve the problem of internal ventilation in traditional accumulation storage.

The invention discloses a multifunctional protective garment which comprises a protective garment body, an elastic head-mounted mask is sewn on the top of the protective garment body, goggles are fixed to the upper portion of the front face of the head-mounted mask through hidden buttons, and a zipper is sewn to the center of the front face of the protective garment body. An air inlet assembly and an air exhaust assembly which are used for perspiration and ventilation are arranged at the two ends of the back surface of the protective clothing respectively; the air inlet assemblies and the air exhaust assemblies are arranged in two symmetrical groups; an elastic waistband is arranged at the waist of the front side of the protective clothing. Through the cooperation of the air inlet assembly and the air exhaust assembly, a wearer in the protective garment can rapidly perspire, ventilate and change air, so that the comfort of the wearer is improved.

The utility model discloses a green building structure for house engineering, which belongs to the technical field of house engineering and comprises a building body, a water surrounding frame plate is fixedly connected to the outer side of the top of the building body, and water guide pipes are fixedly communicated with two symmetrically arranged water outlets at the bottom end of the water surrounding frame plate. A filter screen fixedly connected to the water outlet is arranged at the top of each water guide pipe; by means of the water power linkage cleaning structure, in rainy days, rainwater falls from the top of the building main body and is collected by the water surrounding frame plate, dirt sliding down from the top of the building main body can be intercepted under the action of the two filter screens, meanwhile, the rainwater falls from the two water guide pipes, and the rainwater is cleaned. And a plurality of water guide plates in the water guide barrel are driven, so that a rotating disc connected with a connecting shaft rotates, the cleaning brush cleans the top of the filter screen in cooperation with the action of a plurality of components, and the filter screen is effectively prevented from being blocked in rainy days by means of the acting force of rainwater.

The application discloses an assembled grain flat warehouse, which comprises support columns, the number of the support columns is four, left and right two support columns are connected with first side plates through bolts, the top and bottom of front and back two support columns are respectively connected with driving mechanisms and second side plates through bolts, the inner cavity of the driving mechanism is slidably connected with a mounting sliding plate, and the inner cavity of the mounting sliding plate is connected with a ventilation fan through bolts. Through the cooperation of the top cover, the photovoltaic power generation plate, the driving mechanism, the electronic display panel, the battery pack, the ventilation fan, the mounting sliding plate and the monitoring mechanism, the application has the advantages of environment monitoring and rapid ventilation, can realize real-time monitoring on the environment temperature and humidity in the flat warehouse, is favorable for personnel to understand and manage the flat warehouse, can rapidly ventilate and radiate heat inside the flat warehouse, and is more energy-saving and environment-friendly through solar power generation.

The invention provides a tunnel positive pressure exhaust type rapid dust fall ventilation device, and belongs to the technical field of tunnel engineering. The tunnel positive pressure air exhaust type rapid dust falling ventilation device comprises a walking assembly, a dust falling assembly and an air pipeline. The sensing element is used for sensing the surrounding environment of the walking assembly; the atomizer is used for atomizing stored liquid, and a mist exhaust port of the atomizer is communicated with an atomizing flow guide pipe; a draught fan is in butt joint with the position between the rear end of the front air pipe and the front end of the rear air pipe. A traditional out-hole fan fixing device is converted into an in-hole movable device, and the purposes of dust falling and ventilation of a working face can be achieved more quickly; the sensing technology is applied to monitor the sanitary environment index in the tunnel in real time, and the fan is automatically sensed and controlled to operate to improve the working environment in the tunnel; rapid dust fall and ventilation of a working face can be achieved, the construction environment of the working face is monitored in real time, workers always work in a healthy environment, and the occurrence probability of occupational diseases is reduced.

The invention provides a catalytic reaction device for preparing diethyl carbonate, and relates to the field of reaction tools. The bottom piece structure is fixedly connected to the bottom of the device body, the top end of the fixing structure is fixedly provided with a fence of an annular structure, the top end of the fence is fixedly provided with ejector rod structures which are annularly and evenly arranged in a welded mode, and the ejector rod structures are obliquely arranged. Materials flow downwards by means of gravity, sequentially pass through the upper portion of the fence, the side edge of the ejector rod structure, the through groove and the auxiliary groove to flow downwards and be discharged, and if caking is generated in the materials and falls on the ejector rod structure, the caking is controlled to move to the outer portion of the fence to block the caking, so that the blocking effect is good. And then the small through groove and the auxiliary groove block the large-size cakes again, so that the materials can be discharged smoothly, the cakes are prevented from blocking the discharge of the materials, and the problem that some cakes easily block the outlet and influence the discharge efficiency when the materials are discharged in a common catalytic reaction device for preparing diethyl carbonate is solved.

The utility model discloses a pasture cultivation box with good ventilation, which relates to the technical field of pasture cultivation and comprises a fixed box body, a ventilation component, a butt joint door, a bearing plate and a spraying mechanism. The forage grass cultivation box with good ventilation is provided with the fixed box body, the supporting plate, the connecting groove, the butt joint door, the distance adjusting mechanism and the bearing plates, so that the distance between the bearing plates can be adjusted by adjusting and controlling the distance adjusting mechanism, adaptive adjustment of the distance between the bearing plates according to the height required by forage grass cultivation is facilitated, and the forage grass cultivation box with good ventilation is convenient to use. The adjusted bearing plate can be connected with a corresponding connecting groove formed in the supporting plate in an attached mode, stable supporting of the bearing plate is facilitated, the using effect and adaptability of the pasture cultivation box with good ventilation are improved, and the ventilation assemblies are symmetrically arranged at the top of the fixed box body, so that the ventilation effect is improved; and the interior of the fixed box body can be conveniently and rapidly ventilated.