258results about How to "Improve ventilation effect" patented technology

The present invention provides a planting box device composed of at least a modular frame, which further comprises a frame set, a connecting rod group, wherein the frame set includes a first frame and a second frame; the first frame has a bearing plate, four corners of which are positioned by first openings and first posts and which also forms a plurality of positioning openings; the second frame having a sink forms second openings and second posts on its four corners, wherein the second posts are accommodated with the first openings in size and the sink has an inlet and an outlet; the connecting rod group comprises a plurality of connecting rods, each of which has rod openings and rod posts, so that the composition of the planting box device described above has function of structural expansion in horizontal and vertical direction and thus provides convenience in assembly and disassembly.

The invention belongs to the technical field of greenhouses and relates to a greenhouse utilizing heat of underwater to achieve heat preservation, in particular to a geothermal greenhouse. The geothermal greenhouse comprises a closed heat-preservation greenhouse body which adopts a combined frame structure. A wall body on one side of the greenhouse is a water curtain radiation wall which comprises a wall foundation and geothermal water curtain radiators, a wall body opposite to the water curtain radiation wall is a fan wall where a plurality of fans are arranged side by side, and the ground of the greenhouse adopts a floor heating system with built-in radiation pipes. The geothermal greenhouse fully utilizes heat of the underwater, is high in heat exchange efficiency, achieves environment-friendly and pollution-free heating, and has excellent environment-friendly effect.

The invention relates to the technical field of exhaust fans and particularly relates to a conveniently-cleaned exhaust fan comprising a fan body, a driving shaft, a first rotating motor and a fan frame with a cylindrical cavity; the fan frame is fixedly connected with fixed rods, the fan body comprises fan blades and a turntable, guide holes are formed in the side wall of the turntable connected with the first rotating motor by the driving shaft, the first rotating motor is connected with one of the fixed rods, the fan blades are fixedly connected with the turntable, and the sides of the fan blades are provided with sliding rails; the fan blades are slidably connected with cleaning parts in which strip-shaped holes are further formed, the inner walls of the strip-shaped holes are provided with bulges in sliding fit with the sliding rails, and each cleaning part is further fixedly connected with a connecting line; the other fixed rod is fixedly connected with a second rotating motor on which a locating shaft is arranged, a through hole is formed in the center of the turntable, the locating shaft is rotatably connected with the turntable after passing through the through hole, and the connecting lines are fixedly connected with the locating shaft. By using the conveniently-cleaned exhaust fan, the problem that time and labor are wasted because an existing exhaust fan is required to be manually cleaned can be solved.

The invention belongs to the technical field of air detection equipment, particularly relates to a building material air detection system, and aims at the problem that the service life of the existingair detection equipment is shortened or the air detection effect is affected due to the fact that pollutants such as chippings and dust in household building materials are sucked in easily is solved.The following scheme is proposed: the building material air detection system comprises a shell and an air detector, a box door is arranged on the front side of the shell; an air inlet pipe is arranged on one side of the shell; an air outlet pipe is arranged on the side, away from the air inlet pipe, of the shell. A plurality of pulleys are arranged at the bottom of the shell; a display screen isfixedly mounted on the front side of the shell; the display screen is matched with the air detector. According to the building material air detection system, pollutants such as chippings and dust in household building materials are intercepted by arranging the filter screen, the pollutants are cleaned by arranging the brush, the pollutants can be taken out after the equipment is opened, the equipment sucks and supplies air through air pressure through cooperation of the piston, the sliding plate and other structures, and the air suction and supply effect of the equipment is good.

The invention provides a pair of damping breathing shoes. Each damping breathing shoe comprises a sole, a midsole and an upper, wherein an air valve mounting hole is formed at the heel position of the sole; a one-way air outlet valve is arranged on the air valve mounting hole; a foot bind is arranged on the sole; the midsole covers the foot bind and is in sealing fit with the foot bind; up-down vent holes are formed in the forefoot of the midsole; one end of the air valve mounting hole is led to an air cavity formed by the midsole and the sole while the other end is led to the outside space; a damping breathing ball is arranged upward at the heel of the sole; the damping breathing ball is of a hollow structure, and a round opening is formed at the upper end; the diameter of the opening is (1/4)-(2/3) of the diameter of the horizontal section circle of the damping breathing ball; and the damping breathing ball and the sole are integrally formed by the same material. The pair of damping breathing shoes has the characteristics of simple structure, high strength, long effective service life and good damping breathing effect.

The invention discloses a range hood, comprising a first motor, an oil smoke purification filter screen and a fan, wherein the oil smoke purification filter screen is connected with the first motor through a first connecting shaft, the middle part of the fan is provided with a fan center hole, and the first connecting shaft passes through the fan center hole and is then connected with the oil smoke purification filter screen. Since the connecting shaft connected with the oil smoke purification filter screen is provided with the fan, the motor drives the fan to rotate during working of the range hood, so ventilation effects are effectively improved while noise is controlled; the range hood is an environment-friendly range hood.

The invention relates to a table-shaped lampblack mist purifier which comprises a table surface, an annular air suction chamber, an electric heating oven, an air inlet of the electric heating oven, a centrifugal fan, a drain pipe, a water pump spray pipe, an oil suction air inlet pipe, a water tank, an oil-water separation chamber and a water pump, wherein the annular air suction chamber is shaped as a cover and is just above the electric heating oven; the air inlet of the electric heating oven at the lower part of the electric heating oven is at the lower part of the annular air suction chamber; the air inlet of the electric heating oven is connected to the centrifugal fan at the lower part of the electric heating oven; the air outlet of the centrifugal fan is discharged through the oil suction air inlet pipe; uniformly distributed air holes of the air suction chamber are formed in the annular air suction chamber shaped as the cover along the circumference; and the oil suction air inlet pipe is communicated with the annular air suction chamber shaped as the cover. The table-shaped lampblack mist purifier disclosed by the invention is wider in application and uniform in arrangement; air suction holes are arranged nearby, so that an air suction path is short; particularly, the table-shaped lampblack mist purifier is clean and complete for eliminating lampblack, small in volume and high in efficiency and is capable of recycling waste oil; the table-shaped lampblack mist purifier is easy to be designed to be mute; dinner environmental requirements of hot pots, barbecues or griddles are satisfied; and furthermore, lampblack can be recycled.

The invention discloses a fresh wind device used for an integrated kitchen ceiling. The fresh wind device used for the integrated kitchen ceiling comprises a draught fan, a ventilating pipeline and a wind discharging panel, wherein a wind outlet is formed in the wind discharging panel; one end of the ventilating pipeline is connected with the wind discharging panel; the output end of the draught fan is communicated with the wind outlet through the ventilating pipeline; the draught fan is fixedly arranged in a draught fan installment seat; a roof fixing piece is arranged on the draught fan installment seat. A movable door plate is arranged on the upper side of the wind discharging panel and covers the wind outlet; a wind direction control mechanism is arranged on the upper side of the movable door plate. The wind discharging panel is arranged in the plane of the kitchen ceiling, and the draught fan installment seat is fixedly connected to the roof ceiling. When the draught fan works, vibration is transmitted to the roof ceiling, and therefore noise is reduced. After the draught fan is stopped being used, the movable door plate is closed, gas in a kitchen can be prevented from inversely flowing outdoors, and tiny organisms outside are prevented from invading, and outdoor air is prevented from unexpectedly entering a room. Swinging blades swing and can stop at any swinging positions. The fresh wind device used for the integrated kitchen ceiling can improve fresh wind air flow distribution and improve ventilating effect.

The invention provides a novel greenhouse. The greenhouse comprises an arch frame, an greenhouse body and ground, wherein the arch frame comprises a main girder and a plurality of arch bars; the main girder is arranged along the length direction of the greenhouse; the arch rods are arranged along the width direction of the greenhouse at an equal distance; the arch frame is provided with a thin film which is provided with a film roller; a sunshade net is arranged above the thin film and is provided with a net roller; the greenhouse body comprises an air fan wall and three heat-preserving walls; a plurality of air fans are arranged on the air fan wall; a heat-preserving windproof shed is built at one side of the air fan wall; the heat-preserving walls comprise central plate layers; the upper and lower layers of the central plate layers are heat-preserving layers; underground water circulation pipelines are arranged under the ground; and a plurality of valves for controlling ground-heating water flow are arranged on the underground water circulation pipelines. The novel greenhouse provided by the invention strengthens heat-dissipation, ventilation and rainproof effects and can adjust light intensity at any time according to weather conditions and crop growth needs; and since each water circulation pipeline is controlled by a valve, ground temperature of part of the ground can be adjusted to meet needs of different plants.

The invention discloses a large-span strut-free energy-saving sunlight greenhouse which comprises a roof frame formed by connecting a plurality of arc-shaped arched beams through a plurality of transverse pull rods, wherein a heat preservation film-coated felt with an upward rough surface is arranged at the upper part of the roof frame; a wrapping film-coated felt is arranged on the heat preservation film-coated felt in a manner that the rough surface of the wrapping film-coated felt is downward; a forwards unfolded front slope heat preservation quilt and a backwards unfolded rear slope heat preservation quilt are arranged on the wrapping film-coated felt; greenhouse films are mounted on two sides of the heat preservation film-coated felt at the upper part of the roof frame through transverse clamping slots and longitudinal film clamping slots; and insect-proof nets and air discharging films are arranged at the front and rear lower parts of the roof frame. The large-span strut-free energy-saving sunlight greenhouse is reasonable in structure, high in heat preservation property and high in ventilating speed, and the heat preservation quilt is difficult to weather and long in service life.

The invention discloses a window type air conditioning device that includes indoor window, outdoor window, frame, fan and filter. The indoor window and the outdoor window are set at the two sides of the wall and can be freely to open or close. The frame could support outdoor window and indoor window or one of them. The fan is located in the frame and sucks air into the frame. The filter filtrate the pollution material that the fan sucked. The invention could ventilate air of the building fluently, and decrease the cost. It improves the use rate of the room space.

The invention relates to a vegetable greenhouse which comprises walls and supports. The walls comprise the left wall, the right wall and the rear wall, the supports are in an arc shape, a light-transmitting film covers the outer sides of the supports, the inner sides of the walls are covered with wall heat preservation quilts covering the walls respectively, the light-transmitting film is covered with a heat preservation quilt, the heat preservation quilt comprises a composite foam layer and a waterproof heat preservation layer, and the heat preservation quilt is connected with a curtain rolling machine. The greenhouse is good in heat preservation effect in winter and at night, no heat source needs to be additionally arranged in the greenhouse, and partition irrigation and selective irrigation are facilitated.

A deformable range hood is composed of a bellows device and a movable hood up and down. By placing the movable hood horizontally or tilting backwards, different combination states are formed between the bellows device to realize European-style combination and near-suction type. Combined range hood unit. The invention is a deformable range hood which has both a European-style simple appearance and a near-suction practical performance, and can further meet the aesthetic and performance requirements of the majority of families for modern household appliances.

The invention provides a fresh air ventilation device and relates to the technical field of air purification. The fresh air ventilation device comprises a casing, fresh air ports, exhaust ports, an external connection port, a first fan and a second fan; the fresh air ports, the exhaust ports and the external connection port are formed in the side walls of the casing; the first fan and the second fan are arranged in the casing; the fresh air ports communicate with the first fan through the external connection port; and the exhaust ports communicate with the external connection port through the second fan. The fresh air ventilation device has the independent exhaust mode, so that the problem of air flow short-circuiting of a bidirectional flow pipeline-free fresh air ventilator is avoided; besides, the first fan and the second fan which are independent of each other are adopted, the fresh air pressure and the exhaust pressure are adjusted according to the actual requirements, and the ventilation efficiency of the device is improved; besides, with the single external connection port, the perforating number in a wall is reduced, the device is simple and convenient to mount, and meanwhile, the potential safety hazards to the wall due to perforation are reduced. On the basis, the invention further provides full-automatic and intelligent ventilation equipment.

The invention provides a ventilation device with a rapid gas exchange function for a mobile toilet. A toilet body is involved, the top of the toilet body is fixedly connected with a top plate, the left side of the front face of the toilet body is movably connected with a movable door through a hinge, and the top of the right side of the toilet body is fixedly connected with a fixed box. Through the cooperation of an air suction mechanism, a purification mechanism and a first air pump, a user can conveniently mix fresh air and turbid gas to reduce the concentration of the turbid gas, then a filter cotton plate, an activated carbon filter screen and an HEPA filter screen quickly filter and adsorb dust and harmful gas in the diluted turbid gas, and at the moment, the first air pump quickly transmits the purified gas back to the toilet body, so that a user can rapidly replace turbid gas in the toilet body, and the problems that a traditional ventilation device for the mobile toilet cannotrapidly exchange gas and cannot purify the replaced turbid gas are solved.

The present invention discloses one kind of damping and scavenging mattress and cushion, each of which includes one upper cushion body, one lower cushion body, one outer cover and one inner cover set between the upper cushion body and the lower cushion body, elastic pieces supporting the outer cover and the inner cover, and locating blocks for locating the elastic pieces inside the outer cover and the inner cover. The elastic piece has at least one inner spring set coaxially with the outer cover and the inner cover; and the outer cover or the inner cover is provided with scavenge ports and non-return leaf valves inside the scavenge ports. The damping and scavenging mattress and cushion have easy assembling and disassembling, adjustable bearing force and good damping and scavenging effect.

The invention relates to a large-scale frozen roadbed cooling structure capable of strengthening the convective cooling efficiency of rock blocks. After a roadbed of an expressway is broadened, the heat-absorbing surface is enlarged to absorb more heat. In order to keep the heat stability of the roadbed body, more cooling capacity is needed to maintain balance and cool the roadbed. The large-scale frozen roadbed cooling structure provided by the invention comprises a transverse ventilating plate which is arranged in the direction of the cross section of the roadbed, wherein a plurality of transverse ventilating holes are formed in the transverse ventilating plate; an upper gravel cushion layer, a rock block layer and a lower gravel cushion layer are sequentially arranged below the transverse ventilating plate, common filling is arranged above the transverse ventilating plate; the transverse ventilating plate is internally provided with a transverse stressed reinforcing steel bar and a vertical stirrup. The large-scale frozen roadbed cooling structure provided by the invention is simple in structure, low in cost and economical and practical, and can be used for decreasing the temperature of the top of the rock block layer for a long time so as to cause the heat convection effect of upper and lower layers of the rock block layer and further cooling the roadbed.