9results about How to "Realize the ventilation function" patented technology

The utility model relates to the field of cabinets, in particular to a cabinet with a heat dissipation and dehumidification mechanism, a plurality of heat dissipation fan assemblies are installed on the side face of a cabinet body, detachable filter screen assemblies are installed on the outer sides of the heat dissipation fan assemblies, and fixing pieces are fixedly arranged at the corners of the filter screen assemblies on the cabinet body; fixing grooves are fixedly formed in the side edges of the fixing pieces, adjusting columns are movably arranged in the fixing grooves, and the corners of the filter screen assembly are assembled on the fixing pieces through the adjusting columns. According to the utility model, heat dissipation and ventilation functions of the interior of the cabinet body can be realized through the arrangement of the heat dissipation fan assembly, and the filter screen assembly can be installed on the outer side of the heat dissipation fan assembly through the adaptive arrangement of the fixing member and the adjusting column, so that dust can be prevented from entering the interior of the cabinet body through the heat dissipation fan assembly. The assembly mode of the filter screen assembly is simple and convenient, and the filter screen assembly can be conveniently disassembled and cleaned by a user in the later period.

The utility model relates to the technical field of agriculture, in particular to an auxiliary pollination device in an agricultural greenhouse, which comprises a slide rail, an adaptive electric slider sleeved on the outer wall of the slide rail, a first adjusting plate fixedly connected to the bottom of the electric slider, a second adjusting plate connected to one side wall of the first adjusting plate, and a movable plate connected to one side wall of the second adjusting plate. The lower side of the outer wall of the movable plate is fixedly connected with a carrying plate, and the bottom of the carrying plate is connected with a fan. The first adjusting plate can drive the second adjusting plate to descend, meanwhile, the second adjusting plate can drive the movable plate to descend again, so that the fan can descend to crops, wind power can be accurately blown to the crops through the fan, the first servo motor is used for driving the fan to rotate and reverse, and the fan can be driven by the first servo motor to rotate and reverse. Meanwhile, the electric sliding block slides along the sliding rail, so that the fan can be driven to perform transposition air blowing, and the comprehensiveness of air blowing supplementary pollination on the plants in the greenhouse is guaranteed.

The utility model discloses an iron door with a ventilation structure, which comprises a door frame, an iron door is arranged in the door frame, an iron gauze is embedded on the iron door, a mounting frame is arranged in the iron door, a peep-proof plate is arranged on the rear side of the iron door, a ventilation net is arranged between the peep-proof plate and the mounting frame, and a connecting rod is arranged between the mounting frame and the peep-proof plate. The number of the connecting rods is two, the two connecting rods are arranged in a crossed mode, by starting a first motor, the two bidirectional lead screws rotate synchronously under the cooperation of a synchronous belt and a synchronous wheel, and therefore the two second sliding blocks slide inwards synchronously under the limiting effect of a mounting groove; the peep-proof plate is supported by matching with the connecting rod and the first sliding block, so that a certain gap is formed between the peep-proof plate and the mounting frame, the ventilation function of the iron door is achieved through the gap between the peep-proof plate and the mounting frame, and due to the shielding of the peep-proof plate, the iron door can still shield the outdoor sight while ventilation is conducted, and indoor privacy protection is conducted.

The utility model discloses a forestry seedling culture box, which comprises a box body and a box door, the front end and the rear end of the box body are respectively and movably connected with the box door through hinges, supporting legs are fixedly arranged at four corners of the bottom end of the box body, a breather pipe is arranged on one side of the top end of the box body close to the box door, and the breather pipe is communicated with the upper end of the box body. A cover is arranged on the upper portion of the breather pipe, a water storage tank is fixedly installed on the side, away from the box door, of the box body through an installation base, a micro pump is fixedly installed in the water storage tank, a main water pipe is arranged at the upper end of the water storage tank and movably connected with the water outlet end of the micro pump, and a first control valve is arranged on the main water pipe. And the other end of the main water pipe penetrates through the box body, a vertical plate is installed on one side of the interior of the box body, and branch water pipes are sequentially arranged in the box body from top to bottom. The forestry seedling early-stage nursing device provides the best nursing for forestry seedlings in the early stage, and the survival rate of the seedlings is improved.

The embodiment of the application provides a bidirectional fresh air structure and an air conditioner, the bidirectional fresh air structure comprises: an inner cylinder, which is provided with a fresh air inlet, a fresh air cavity and a fresh air outlet which are sequentially communicated; an outer cylinder, which is sleeved outside the inner cylinder to form a dirty air cavity between the outer cylinder and the inner cylinder, the outer cylinder is respectively provided with a dirty air return air outlet and a dirty air exhaust outlet at both ends, the dirty air return air outlet and the dirty air exhaust outlet are respectively communicated with the dirty air cavity, the fresh air inlet and the fresh air outlet are respectively located outside the outer cylinder, and the dirty air exhaust outlet and the fresh air inlet are opposite in direction.

The invention belongs to the technical field of pressure and flow stabilizing devices, and particularly relates to a gas pressure and flow stabilizing device and an industrial gas transmission system.The gas pressure and flow stabilizing device comprises a valve body, a pressure regulating valve module, a gas flow stabilizing valve module and a flow regulating valve module; a pressure stabilizing structure cavity and a flow stabilizing structure cavity are formed in the valve body, and the pressure regulating valve module is arranged in the pressure stabilizing structure cavity and divides the interior of the pressure stabilizing structure cavity into a lower air inlet cavity and an upper pressure stabilizing cavity. The airflow stabilizing valve module is arranged in the flow stabilizing structure cavity; the flow regulating valve module is arranged on the three-way connecting pipeline and is used for regulating the flow of the gas conveyed to the flow stabilizing structure cavity; the pressure regulating valve module is linked with the gas flow stabilizing valve module, so that the quantity demanded of gas during welding can be reduced to the minimum through automatic regulation of gas pressure and gas flow in the pressure and flow stabilizing device under different pressures, and meanwhile, the gas using requirement during welding can be met.

This invention relates to the field of 2G / 3G / 4G / 5G base station air conditioning technology, and more particularly to a single-cabinet intelligent air conditioner for base stations. The single-cabinet intelligent air conditioner includes a refrigerant subsystem, ventilation components, electrical control components, and a metal cabinet. In the refrigerant subsystem, the exhaust port of the electric compressor is connected to the inlet end of the compressor exhaust pipe. The outlet end of the compressor exhaust pipe is connected to the inlet end of the condenser assembly. The outlet end of the condenser assembly is connected to the inlet end of the evaporation pipe. The outlet end of the evaporation pipe is connected to the inlet end of the expansion valve. The outlet end of the expansion valve is connected to the inlet end of the evaporator core. The outlet end of the evaporator core is connected to the inlet end of the compressor suction pipe. This invention, by setting up a refrigerant subsystem, ventilation components, electrical control components, and a metal cabinet, achieves the function of cooling or ventilating the base station cabinet, thereby reducing the air temperature inside the base station cabinet, cooling the hot air inside the base station cabinet, and ensuring that the communication or other electrical components inside the base station cabinet are at a suitable operating temperature.

The utility model discloses a pit system for motor vehicle detection, which comprises a pit, a shed covered on the pit, a ventilation system, an early warning system and a lighting system, the ventilation system comprises an air inlet filter, the air inlet filter is connected with a first induced draft fan, the first induced draft fan is connected with an air outlet pipe through a first buried pipe, the air outlet pipe is positioned at the bottom of the pit, and the early warning system is connected with the lighting system. An exhaust pipe is arranged on the upper portion of the pit and connected with a second induced draft fan through a second buried pipe, the second induced draft fan is connected with an exhaust nozzle, the early warning system comprises pressure sensors and a displayer, the pressure sensors are located on the two sides of the pit, the lighting system comprises a lamp holder, and the lamp holder is connected to the top of the pit through a universal joint. The ventilation system is arranged, fresh air can be introduced into the pit through the air outlet pipe at the bottom of the pit, the exhaust pipe is arranged, the functions of air exhaust and air exchange can be achieved, and symptoms such as chest distress caused when workers stay in the pit for a long time are avoided.

This disclosure relates to the technical field of cable trays. One embodiment of this disclosure provides a cable tray that is easy to fix, comprising: a tray body and a fixing frame. The fixing frame is disposed on the top of the tray body, a hanging assembly is disposed between the fixing frame and the tray body, a sealing and venting assembly is disposed on the tray body, and connecting assemblies are disposed at both ends of the tray body. The hanging assembly includes a sleeve block, which is fixed inside the bottom surface of the tray body. A hanging rod is inserted into the sleeve block, and a fixing nut is screwed to the lower end of the hanging rod. A connecting frame is disposed at the upper end of the hanging rod, and a pair of hooks are rotatably connected to the connecting frame through a pin. This technical solution solves the technical problems in the prior art where it is inconvenient to install the cable tray during use, leading to reduced work efficiency, and the existing devices cannot dissipate heat from the cables.