401results about How to "Avoid blowing" patented technology

The invention relates to the technical field of electrical equipment, and discloses an electric meter box with a protection function, the electric meter box comprises an electric meter box body and main heat dissipation holes formed in the side wall of the electric meter box body, a rotating shaft is rotatably inserted in the side wall of the electric meter box body, one end of the rotating shaft is provided with a windmill, and the other end of the rotating shaft is provided with a gear; the outer side of the main baffle plate is provided with teeth engaged with the gear, the bottom of the electric meter box body is provided with standby heat dissipation holes, the bottom of the electric meter box body is slidably provided with a standby baffle plate, and a linkage assembly is arranged between the main baffle plate and the standby baffle plate. In strong wind weather, a windmill is rotated by strong airflow, so that the windmill drives a gear to rotate, a main baffle is driven to move upwards to seal main heat dissipation holes through meshing of the gear and teeth, meanwhile, a linkage assembly drives a standby baffle to move, sealing of standby heat dissipation holes is relieved, and heat in the electric meter box body is dissipated through the standby heat dissipation holes. Therefore, the device can be conveniently used outdoors in windy weather.

The invention provides an up-down air outlet air conditioner and a control method thereof. The up-down air outlet air conditioner comprises a shell, a first air inlet, a first air outlet, a second air inlet and a second air outlet. The indoor heat exchanger is arranged in the shell and divides the space in the shell into an upper space and a lower space; the first air duct is arranged in the upper space and communicates with the second upper air opening; the second air duct is arranged in the lower space and communicates with the first lower air opening; the first cross-flow fan blade is arranged in the first air duct; the second cross-flow fan blade is arranged in the second air duct; the first upper air opening and the first air channel can communicate with the second air channel, and the second air channel and the second lower air opening can communicate with the first air channel. According to the up-and-down air outlet air conditioner and the control method thereof, the requirements that cold air is not directly blown during refrigeration and hot air falls to the ground quickly during heating can be met, and too large noise cannot be generated.

The invention discloses an air drying system for seasoning packaging containers, comprising a conveying mechanism which is horizontally supported by a bracket; the automatic stacking mechanism is arranged above the feeding end of the conveying mechanism and is used for uniformly stacking the packaging containers on the conveying mechanism for conveying; the air shower mechanism is arranged at the bottom of the conveying mechanism and inputs positive pressure air to the conveying surface of the conveying mechanism; the conveying face of the conveying mechanism keeps ventilated, and the automatic stacking mechanism buckles the open ends of the packaging containers to the conveying face of the conveying mechanism. The air-drying system can be used for rapidly air-drying the cleaned packaging containers, the packaging containers can be automatically stacked through the automatic stacking mechanism arranged at the front end of the conveying mechanism according to the width of the conveying mechanism, and then the opening ends of the packaging containers are buckled to the conveying face of the conveying mechanism, so that drainage is facilitated; and the air shower mechanism is combined, so that the packaging container can be conveniently air-dried, and the packaging container can be conveniently filled with materials after being sterilized subsequently.

The invention provides an anti-wind device for gas shielded welding and a welding system. The anti-wind device for gas shielded welding comprises a tube shell, the tube shell is arranged outside a gun head of a welding gun in a sleeving mode, and a shielding gas containing cavity surrounding the gun head is formed between the tube shell and the gun head; the casing pipe is arranged outside the pipe shell in a sleeving mode, and an airflow drainage cavity surrounding the outside of the pipe shell is formed between the casing pipe and the pipe shell; the air source connector is arranged on the sleeve and communicated with the airflow drainage cavity, and the air source connector is used for guiding airflow from an air source into the airflow drainage cavity; the airflow drainage cavity is used for guiding airflow in the axial direction of the gun head so that the airflow can form an air curtain on the periphery of the shielding gas containing cavity. The anti-wind device can achieve the anti-wind function on the shielding gas, and compared with the prior art, the construction difficulty can be reduced, the equipment resource configuration can be simplified, and the construction cost can be saved.

The utility model discloses a plastic film residue recycling machine which comprises a machine frame. A transmission mechanism; a picking mechanism; the two ends of the profiling wheel are rotationally connected to the rack, and the profiling wheel is in transmission connection with the picking mechanism; one end of the demolding mechanism is in transmission connection with an output end of the transmission mechanism; the two winding mechanisms are arranged at an acute angle; the winding mechanism comprises a packaging driving shaft, a packaging driven shaft, a packaging belt and two mounting plates; the packaging driving shafts and the packaging driven shafts are parallel and are connected to the two mounting plates in a rotating mode, and one end of one packaging driving shaft is in transmission connection with one end of the demolding mechanism. The packing belt is wound on the packing driving shaft and the packing driven shaft; the two baffles are arranged on the two sides of the two winding mechanisms correspondingly and connected to the two mounting plates located on the same side correspondingly; the two ends of the packaging transmission assembly are connected to the ends of the two packaging driving shafts correspondingly. The plastic film residue recycling machine can package plastic film residues, prevent the plastic film residues from being blown away when wind power is large, and avoid secondary pollution of the plastic film residues to the environment.

The air conditioner indoor unit comprises a shell, a first air guide plate and a second air guide plate, and the shell is provided with an air outlet; the upper end of the first air deflector is pivoted to the upper edge of the air outlet, and the first air deflector is provided with a plurality of air dispersing holes; the rear end of the second air deflector is connected to the shell; the air conditioner indoor unit has a first zero-wind mode and a second zero-wind mode. The first zero air mode is configured as follows: the first air guide plate covers and closes the whole air outlet, the second air guide plate opens the air outlet, and the front end of the second air guide plate is located on the front side of the air outlet; according to the second zero air mode, the lower end of the first air guide plate and the front end of the second air guide plate are both located on the front side of the air outlet, and the lower end of the first air guide plate is close to or tightly attached to the middle position between the front end and the rear end of the second air guide plate. According to the air conditioner indoor unit, air can be prevented from directly blowing a user, and the use comfort of the user is improved; and the two zero-wind modes can meet different requirements of users, and the practicability of the air conditioner is improved.

The invention discloses a coaxial powder feeding MIG wire powder composite additive manufacturing device and method, and belongs to the field of electric arc additive manufacturing. The device comprises an MIG wire powder composite welding gun for coaxial powder feeding; the composite welding gun comprises a wire powder coaxial copper nozzle with a wire feeding port in the middle, an ion gas shell and a powder feeding shell. Powder feeding ports are formed in the left end and the right end of the wire feeding port. The wire powder coaxial copper nozzle is located at the bottom end of the plasma arc welding gun and connected with the welding gun shell. A second channel between the ion gas shell and the powder feeding shell is used for feeding powder; the MIG electrode comprises a welding wire tube used for arranging a welding wire, and one end of the welding wire is sent out through a wire feeding port. A slotting sleeve is arranged on the outer side of a welding wire tube of an MIG electrode of the composite welding gun and located on the inner side of an ion gas shell. According to the device, the welding wire and the powder can synchronously enter the molten pool, so that the problem of component regulation and control in multi-component alloy additive manufacturing is effectively solved, and the utilization efficiency of the powder is improved.

The present invention relates to an air outlet structure of an air conditioner and an air conditioner, comprising a first air outlet, a second air outlet and an air guide assembly; the first air outlet is arranged on a front panel, and the second air outlet is arranged at the bottom of a housing; the air guide assembly is installed on the housing, and the air guide assembly can open the first air outlet and close the second air outlet at the same time. The present invention realizes that air conditioning air is blown out from the first air outlet arranged on the front panel through the movement of the air guide assembly, avoiding direct blowing on users, improving the comfort of the air conditioner, and enhancing the user experience.

The air conditioner indoor unit comprises a shell, a first air guide plate and a second air guide plate, and the shell is provided with an air outlet; the upper end of the first air deflector is pivoted to the upper edge of the air outlet, and the first air deflector is provided with a plurality of air dispersing holes; the rear end of the second air deflector is connected to the shell; the air conditioner indoor unit has a first zero-air mode, a second zero-air mode and a third zero-air mode. If the air conditioner indoor unit is in the first zero-air mode, air is only blown out from the air dispersing holes; if the air conditioner indoor unit is in the second zero-air mode, air is blown out from the air dispersing holes and the first side air opening; and if the air conditioner indoor unit is in the third zero-air mode, the air is blown out from the air dispersing holes and the second side air opening. According to the air conditioner indoor unit, air can be prevented from directly blowing a user, and the use comfort of the user is improved; the air outlet positions and the air outlet areas of different zero air modes are different, the heating or refrigerating efficiency is different, different requirements of users can be met, and the practicability of the air conditioner is improved.

The utility model discloses a heat insulation type automobile protective cover, which belongs to the technical field of automobile accessories and comprises a protective cover body, rearview mirror protective covers are respectively arranged on two sides of the protective cover body, first reflective strips are fixedly connected onto the rearview mirror protective covers, and second reflective strips are respectively arranged on the periphery of the protective cover body. The second reflective stripe of the protective cover body and the first reflective stripe on the rearview mirror protective cover can reflect light at night to remind passing vehicles and prevent collision accidents, then the elastic band at the bottom of the protective cover body can be tensioned after the protective cover body and the rearview mirror protective cover are sleeved on the vehicle, certain support is provided, and the protective cover body and the rearview mirror protective cover are convenient to use. According to the wind-proof protective cover, wind is prevented from blowing up or blowing away the protective cover body, the stability during use is enhanced, then wheels can be protected through the wheel protective cover, the wheel protective cover can be conveniently installed on the protective cover body, and the wheel protective cover can be conveniently fixed through a fourth hook-and-loop fastener and a third hook-and-loop fastener on a fixing belt.

The utility model relates to the technical field of powder baking, in particular to a powder baking oven which is provided with a heat preservation mechanism and a rotating mechanism, so that in the powder baking process, materials can be dried more uniformly, the heat preservation effect is good, the failure rate is low, operability is high, and the environment-friendly treatment effect is good. Comprising a drying mechanism; the device further comprises a heat preservation mechanism, an air outlet mechanism, a rotating mechanism and a plurality of stir-frying mechanisms, the air outlet mechanism is installed in the heat preservation mechanism, the drying mechanism is installed in the heat preservation mechanism, the rotating mechanism is installed in the air outlet mechanism, and the stir-frying mechanisms are installed in the air outlet mechanism; the heat preservation mechanism is used for heat preservation, the air outlet mechanism is used for ventilation, the drying mechanism is used for drying, the rotating mechanism is used for rotating, and the stir-frying mechanism is used for stir-frying.

The utility model provides a multi-wind-direction air duct structure and an air purifier, the multi-wind-direction air duct structure comprises a shell and a fan arranged in the shell, the shell is provided with an air inlet and an air outlet which are communicated with the outside, and the air inlet and the air outlet are communicated in the shell to form an airflow channel; a first air inlet is formed in the top of the shell, and a first fan is arranged at the lower end of the first air inlet; a second air inlet is formed in the bottom of the shell, and a second fan is arranged at the upper end of the second air inlet; the air outlet is formed in the middle of the shell. According to the multi-wind-direction air duct structure, top and bottom air inlet and middle air outlet are achieved in the mode that the two fans are coaxially arranged in the vertical direction, the air flowing rate can be greatly increased, and when the multi-wind-direction air duct structure is applied to an air purifier, on one hand, the air purification amount in unit time can be effectively increased, and the working efficiency of the air purifier is improved; and on the other hand, direct blowing to the user can be avoided through middle air outlet, and the user experience is improved.

The invention relates to the technical field of air conditioners, in particular to an industrial environment-friendly air conditioner cold circulation device which comprises a shell, two mounting frames symmetrically fixed in the shell, a condensation pipe mounted on the mounting frames and a plurality of fins arranged on the condensation pipe, the mounting frames are L-shaped, and a mounting space is formed between the condensation pipe and the inner wall of the shell; a filter device is slidably arranged in the mounting space, the filter device comprises a filter frame, a plurality of cleaning assemblies are fixedly mounted on the mounting frame, each cleaning assembly is located between every two adjacent fins, and the cleaning assemblies are used for cleaning the fins; the cleaning assembly comprises two mounting strips, a plurality of mounting pieces and a plurality of cleaning pieces, the upper ends and the lower ends of the two mounting strips are fixedly connected to the upper side and the lower side of the filtering frame respectively, and the mounting pieces are fixedly connected to the mounting strips. According to the heat exchanger, it is guaranteed that dust on the fins is cleaned, meanwhile, energy consumption is reduced, and the environment-friendly and energy-saving effects are achieved.

The utility model provides a garage electric control door with an automatic ventilation function, belongs to the technical field of garage electric control doors, and aims to solve the problems that according to an existing garage electric control door with the automatic ventilation function, a filter is prone to blockage after being used for a long time, and cleaning and maintenance are too tedious. And the exhaust port is easy to cause sand and dust impurities to flow backwards. Comprising a garage support. The garage door body is mounted in the garage bracket; the driving mechanism is mounted at the upper part of the garage bracket; the air inlet channel is fixedly mounted at the upper part of the garage bracket; the air exhaust fan is fixedly mounted in the air inlet channel; the filter is fixedly mounted in the air inlet channel; the air inlet assembly is arranged in the air inlet channel; and the exhaust assembly is arranged in the exhaust port. The device has the advantages of being convenient to maintain, quick to clean, convenient to ventilate and the like.

The utility model discloses an air chute conveyor for red mud grinding and processing, and relates to the technical field of air chute conveying. The chute conveying device comprises a chute conveying shell I, wherein a cleaning mechanism, an air draft mechanism and an elastic mechanism are arranged on the chute conveying shell I; the cleaning mechanism comprises a first cleaning assembly and a second cleaning assembly, the first cleaning assembly comprises an L-shaped supporting frame fixedly installed on the top of the first chute conveying shell, a first telescopic rod is fixedly installed at the bottom of the L-shaped supporting frame, and a rack is fixedly installed at the bottom end of the first telescopic rod. Through the arrangement of the cleaning mechanism, the problems that the quality of air in a production place is reduced and the working environment and health of staff are affected due to the fact that powder accumulated on the fan filter screen hinders smooth flowing of air and reduces the efficiency of a ventilation system are solved.

The utility model belongs to the field of sun-drying equipment, and particularly relates to totally-enclosed conveyor sun-drying equipment which comprises a steel frame detachably arranged on the ground, sealing plates arranged on the periphery of the steel frame and a top plate used for sealing the top faces of the four sealing plates, and the sealing plates, the top plate and the ground form a drying chamber. A conveying device used for containing materials is arranged in the drying chamber. And an exhaust fan communicated with the drying chamber is arranged on the sealing plate. The multiple conveying devices are vertically distributed on the ground at intervals, and the ends of the adjacent conveying devices are arranged in a staggered mode. The sealing plates are arranged on the periphery of the steel frame, the top plate is arranged on the sealing plates on the periphery of the steel frame, the drying chamber is formed between the sealing plates and the top plate, sunlight irradiates in the drying chamber, the internal temperature of the drying chamber rises, and therefore the drying efficiency of coal slime in the drying chamber can be improved. And the coal slime is dried in the totally-enclosed drying chamber, so that the coal slime can be prevented from being blown away by wind, and the environment is protected from being polluted.

The utility model discloses a pot cover with a detachable auxiliary hanging structure, which relates to the technical field of kitchen utensils and comprises a pot cover main body, a support column is mounted on the pot cover main body, a handle is mounted on the support column, a water filtering hole is formed in the pot cover main body, a closing component is further mounted on the support column, and the handle is mounted on the closing component. The closing assembly comprises a sealing plate used for opening and closing the water filtering hole, a mounting column is mounted on the edge of the pot cover body, a hanging assembly used for conducting auxiliary hanging on the pot cover body is arranged on the mounting column, and when the water filtering hole needs to be closed or the size of the water filtering hole needs to be adjusted, the water filtering hole can be closed by rotating a rotating ring; the rotating ring rotates along the fixed ring, then the rotating ring drives the connecting block to move, then the connecting block drives the sealing plate to move, the position of the sealing plate can be locked according to needs, the sealing plate is prevented from being blown by steam, and therefore the pot cover can adapt to different cooking processes, and the practicability of the pot cover body is improved.

The utility model discloses a constant-temperature cell culture system which comprises a cell culture box, a heating fan is arranged on the outer wall of one transverse side of the cell culture box, and a high-temperature protection device is arranged on the inner wall of one transverse side of the cell culture box; the high-temperature protection device comprises an air inlet and a plurality of air guide holes, the air guide holes are arranged into an air guide matrix, and the air inlet is right opposite to the air guide matrix and the air outlet side of the heating fan. According to the utility model, the high-temperature protection device is adopted to guide high-temperature air into the rear part of the cell culture box, so that direct blowing of the high-temperature air is avoided, a small amount of high-temperature air can be directly blown into the cell culture box through the air guide holes, and hot air is uniformly guided into the cell culture box while local high temperature is avoided; therefore, the cell culture environment in the incubator is more stable, and the observed cells are prevented from being influenced by local high temperature.

The utility model relates to the technical field of cooling tower demisting, in particular to a demisting and water collecting device of an energy-saving and environment-friendly cooling tower, which comprises a tower body and a demisting and water collecting device, the demisting and water collecting device comprises a demisting device and a water collecting device, the demisting device comprises an air duct, a fan and a frame, trundles are arranged at the bottom of the frame, the trundles are arranged in a groove at the top of the tower body, and the water collecting device is arranged in the groove. A plurality of air inlets are formed in the outer side of the air cylinder, air inlet pipes are arranged on the air inlets, a detachable air disc is arranged below the fan and connected with a water collecting device, and a plurality of air shielding plates are arranged on the side faces of the periphery of the frame. According to the demisting and water collecting device, a plurality of air inlets are formed in the outer side of the air duct, so that outside cold air entering is increased to be mixed with hot mist, and mist production is reduced; each air inlet is provided with an air inlet pipe, air is supplied to the central platform of the air duct from the outside of the tower, cold air is directly supplied into cold and hot mist through air inlet pipe pipelines, the mist is reduced through the condensation effect, and the air inlets and the air inlet pipes are used for supplementing air quantity when natural air inlet is insufficient.

The utility model discloses a kind of semitrailer tarpaulin devices, comprising: semitrailer floor, the top of the semitrailer floor is fixedly connected with vertical plate, the top of the vertical plate is fixedly connected with top plate, the top of the semitrailer floor is fixedly connected with the side of head baffle;Top shielding component, the top of the head baffle is fixedly connected with the side of top shielding component, side shielding component, the side of the vertical plate is fixedly connected with the side of side shielding component, the tail shielding component is used to adopt tarpaulin shielding to the tail of semitrailer, the utility model relates to tarpaulin device technical field.The semitrailer tarpaulin device, by the setting of top shielding component, by driving motor directly driving threaded block drives the rotation axis of far end to move outward, first tarpaulin is spread over the top of entire semitrailer, and first tarpaulin is carried by multiple rotation axes, can evenly share tarpaulin quality, avoid causing equipment overload in moving process.

The utility model relates to the technical field of air conditioner equipment, and discloses an evaporation cooling air conditioner air opening adjusting structure which comprises an air conditioner body, an air outlet is formed in the surface of the air conditioner body, a baffle is arranged at the air outlet, mounting mechanisms are arranged at the top and the bottom of the baffle correspondingly, and the baffle is connected with the air conditioner body through the mounting mechanisms. A distance exists between the baffle and the air outlet, the baffle can move relative to the installation mechanism so that the baffle can be away from or close to the air outlet, the installation mechanism comprises sliding seats fixedly installed at the top and the bottom of the baffle, and first arc-shaped plates are installed in the sliding seats in a sliding mode. The baffle is installed on the air conditioner body and can move relative to the installation mechanism, when direct blowing is not needed, the baffle is moved to the air outlet, the baffle can interfere with airflow, the airflow direction is changed, and direct blowing is avoided; when the air conditioner is normally used, the baffle is moved to be away from the air outlet.

The utility model provides an air conditioner indoor unit. The air conditioner indoor unit comprises a machine shell and a flow guide block. An air channel is formed in the machine shell and provided with an air outlet so that heat exchange airflow in the machine shell can be blown out of the machine shell through the air outlet. The flow guide block is arranged at the air outlet and comprises an air baffle and a partition plate, the flow guide face of the air baffle faces the interior of the air duct, and the partition plate extends out of the interior of the air duct from the flow guide face; the partition plate is used for dividing the heat exchange air flow into two strands, and the two strands of heat exchange air flow are guided towards the two sides of the air outlet through the parts, located on the two sides of the partition plate, of the flow guide face. The air conditioner indoor unit can prevent heat exchange airflow from directly blowing forwards.

The utility model provides an air guide device for an air conditioner and an air conditioner indoor unit. The air guide device comprises a first plate body, a plurality of first air guide barrels and a plurality of second air guide barrels. The first plate body is provided with a plurality of first air outlet holes and a plurality of second air outlet holes. The multiple first air guide barrels are arranged on the air outlet side of the first plate body, each first air guide barrel is connected to one first air outlet hole, and each first air guide barrel is configured to guide airflow to one side of the first plate body. And the multiple second air guide barrels are arranged on the air outlet side of the first plate body, each second air guide barrel is connected to one second air outlet hole, and each second air guide barrel is configured to guide airflow to the other side of the first plate body. According to the air guide device for the air conditioner and the air conditioner indoor unit, the problem that outlet air of the air conditioner indoor unit directly blows a user can be solved, and the effects that the outlet air of the air conditioner indoor unit is prevented from directly blowing the user, and the use experience of the user is improved are achieved.

The invention discloses a marine plant planting container, and belongs to the technical field of greenhouse planting, the marine plant planting container comprises a box body, a plurality of fixing units are arranged in the box body, and planting assemblies are rotatably mounted on the fixing units; wherein the fixing unit comprises a base, the base is detachably installed in the box body, a fixing frame is fixedly installed at the upper end of the base, the fixing frame is of a semi-surrounding structure, and a horizontally-arranged center shaft is fixedly installed on the fixing frame; wherein the planting assembly comprises two sets of rotating discs, the rotating discs are rotationally installed on the center shaft, a plurality of fixing pipes are fixedly installed between the two rotating discs and distributed around the axis of the center shaft in an array mode, the fixing pipes are rotationally sleeved with rotating cylinders, and hanging boxes used for planting plants are fixedly installed at the lower ends of the rotating cylinders. According to the plant planting container for the ship, the hanging boxes are installed on the rotatable rotating disc, and the position heights of the hanging boxes are adjusted, so that workers can manage the hanging boxes everywhere, and potential safety hazards in the sailing process are reduced.

The invention discloses a surface polishing device for automobile part production. The surface polishing device comprises a shell and a supporting disc, and a rotating mechanism is fixedly mounted at the top of the supporting disc; the rotating mechanism comprises a belt pulley set, a first rotating shaft and a second rotating shaft, the right end of the second rotating shaft is rotationally connected with the outer wall of the left side of the shell through a bearing, the outer wall of the second rotating shaft is fixedly connected with the inner wall of a driving wheel in the belt pulley set, and the outer wall of the first rotating shaft is fixedly connected with the inner wall of a driven wheel in the belt pulley set; a first rotating shaft penetrates through the outer wall of the shell through a bearing, a three-way valve is opened to a pipeline communicated with a dust removal box, at the moment, a circulating air pump works to suck outside air into the dust removal box through the three-way valve, then air is exhausted into an air pipe, and it is guaranteed that air is continuously blown to the grinding position; and dust in the air entering the dust removal box is filtered out by the dust screen, so that the dust is prevented from being blown to the polishing position.

The utility model relates to the technical field of automobile parts, and discloses an active air-inlet grille capable of reducing wind resistance, which comprises a mounting frame, a mounting cavity is arranged in the mounting frame, a connecting plate is fixedly connected in the mounting cavity, blades are arranged in the mounting cavity, and the blades are positioned on two sides of the connecting plate. A cleaning brush is arranged in the mounting cavity, a first cavity is formed in the upper side of the mounting frame, when the blades need to be cleaned, a first motor is started to drive a rotating shaft on the left side to rotate, and finally dust on the surfaces of the blades is cleaned; the problem that some existing active air inlet grilles for automobiles are low in blade cleaning efficiency is solved, dust is brushed through a cleaning brush, so that the dust is separated from the blades, the dust is subsequently blown away through a cleaning fan, and therefore some dust with high adhesive force is cleaned from the surfaces of the blades, and the cleaning efficiency is improved. And dust is prevented from being blown into the automobile during high-speed running of the automobile as much as possible.

The low-noise dust collector comprises a shell and a fan assembly, the shell is provided with a closed cavity, the front end wall of the closed cavity is provided with an air inlet structure, the rear end wall of the closed cavity is provided with a plurality of air outlet holes, and a partition grid plate is arranged in the closed cavity to divide the closed cavity into a fan cavity located on the front portion and a transition cavity located on the rear portion. A plurality of isolation holes are densely distributed in the separation grid plate, and the fan assembly is fixedly installed in the fan cavity. Air flow exhausted by the fan assembly sequentially passes through the isolation holes of the separation grid plate, the transition cavity and the air outlet holes of the rear end wall, so that the air flow flows out in a contraction-release-contraction mode, and noise is greatly reduced.

This utility model discloses an integrated machine for laying double-layer plastic film and drip irrigation tape, comprising: a frame; a drip irrigation tape placement shaft mounted on the frame, with two drip irrigation tape rolls sleeved on the placement shaft; a white plastic film placement shaft mounted on the frame, with a white plastic film roll sleeved on the white plastic film placement shaft; a black plastic film placement shaft mounted on the frame, with a black plastic film roll sleeved on the black plastic film placement shaft; and a film pressing shaft assembly mounted on the frame. This integrated machine can lay black and white plastic film and drip irrigation tape completely in one operation, which not only improves agricultural efficiency, but also allows the black plastic film to inhibit weed growth, the laid white plastic film to lower the soil surface temperature and prevent seeds from being burned by high temperatures, while also helping to maintain soil moisture and promote seed germination. The laid drip irrigation tape achieves water conservation and eliminates the need for manual watering.

The utility model provides a highway sound insulation baffle with wind resistance belongs to highway baffle technical field, including main baffle, the inside of main baffle both ends all is seted up with installation slot, the inside fixedly connected with isolation subassembly in installation slot, the outside of main baffle both ends is seted up with side groove, the inside fixedly connected with sound insulation board in side groove, the inside of main baffle is seted up with vacuum cavity, the inside fixedly connected with wind -resisting subassembly of vacuum cavity, the utility model discloses a wind -resisting subassembly and arc frame are seted up, utilize the wind that provides a flow channel for blowing to main baffle with ventilation pipe, cooperate the arc frame of upper side, optimize the flow path of wind, avoid its straight blow main baffle, improve the wind -resisting performance of baffle, and through the sound insulation material of inside inner layer of the guide plate of inside staggered setting and it, can absorb the sound of passing through ventilation pipe and insulate, ensure the sound insulation effect of wind -resisting subassembly.