45results about How to "Guaranteed ventilation" patented technology

The new energy charging pile temperature control device comprises a charging pile body, a temperature control opening is formed in the bottom of the side end face of the charging pile body, a temperature control assembly is clamped in the temperature control opening, and an air cooling assembly is connected to the position, corresponding to the temperature control assembly, in the charging pile body. The temperature control assembly is used for driving air to enter the charging pile body through the temperature control assembly for forced air cooling; according to the charging pile, the air cooling fan drives air to penetrate through the temperature control assembly to enter the charging pile body for forced air cooling in the rapid rotation process, the air filter plate can effectively filter dust in the air in the process that the air penetrates through the air filter plate, and in the process, liquid water in the temperature control frame absorbs heat in the air, so that the heat in the air is dissipated; due to the fact that hot air has the characteristic of flowing upwards, the cooled air enters the charging pile body and then flows from bottom to top for forced air cooling, and therefore dissipation of heat of power equipment arranged in the charging pile body is accelerated, and the heat carried in the air is taken away through liquid water single circulation.

The invention relates to the technical field of planting equipment, and discloses a traditional Chinese medicinal material planting field ridging device which comprises a traction frame used for being connected with a traction carrier, a supporting frame is fixedly connected to the bottom of the traction frame, a separation mechanism is arranged in the supporting frame, and a conveying belt is arranged behind a bucket, so that the traditional Chinese medicinal material planting field ridging device is formed. According to the ridging machine, shoveled soil can be conveyed, the soil is screened through the part composed of the round bars in the middle of the conveying belt, loose soil can fall back to the ground again from gaps of the round bars, and some large sundries such as stones in the soil can be continuously conveyed along with the conveying belt so as to avoid the situation that during ridging, the soil cannot fall off easily. In the prior art, soil in a place with stones is difficult to be uniformly compacted, and the conditions of looseness and large compactness difference occur, so that the growth of root systems of crops is influenced, the root systems are non-uniformly grown in the soil with different compactness, and the absorption of the root systems to water and nutrients is influenced.

The present invention relates to the technical field of high-voltage switch cabinets, and specifically to a dust-proof high-voltage switch cabinet, comprising a cabinet body, a cabinet door is provided on the cabinet body, a base is fixedly connected to the bottom of the cabinet body, a mounting hole is provided at the bottom of the inner wall of the cabinet body, a turntable is provided in the mounting hole, a one-way damping drive structure for driving the turntable to rotate is installed on the base, four through holes are provided on the turntable, a movable ring is provided in the through hole, a filter is fixedly connected in the movable ring, four fixed rings are fixedly connected to the top of the turntable, an elastic support member matched with the movable ring is installed on the fixed ring, a support frame is provided above the turntable, two first support rings and two second support rings are fixedly installed on the support frame, and the first support ring and the second support ring are fixedly connected to the inner wall of the cabinet body through a first mounting plate; dust on the filter can be cleaned, the influence of the filter blockage on the cabinet air intake and heat dissipation is reduced, and the dust-proof and ventilation effects of the filter are guaranteed.

The utility model discloses a continuous-span steel structure framework of an assembly type plant. Comprising a first stand column, a damping fixing base, a longitudinal beam, a first cross beam, a second stand column, a top beam, a top beam lifting mechanism, a first telescopic inclined beam, a second telescopic inclined beam, a first purline, a second purline, a third purline, an adjustable connecting base, a first cross inclined beam, a second cross inclined beam, a reinforcing cross support, a ventilator mounting beam, an industrial ventilator, a drainage groove, a drainage pipe and a second cross beam. A positioning seat; the assembly mode is adopted for lap joint of the workshop framework, rapid assembly and disassembly can be achieved, the damping fixing bases can buffer and disperse vibration and impact force borne by the stand columns, the structural stability and safety of the workshop are improved, the height of the top beam and the inclination of the workshop top can be adjusted through the top beam lifting mechanism, and the construction efficiency is improved. And different climatic environments and drainage requirements can be met.

The invention relates to a novel biological matrix material for power transmission and transformation project slope vegetation restoration and a preparation process thereof. The biological matrix material is composed of crop straw, peat soil, a microbial agent, a water-retaining agent, an organic fertilizer, a coagulant and biochar. The preparation process comprises the steps of raw material preparation, fermentation treatment, quality detection, packaging, storage and the like. The biological matrix material has the advantages of low cost, strong nutrient supply capability, good water-retaining property and high stability; the preparation process is simple, easy to operate and suitable for large-scale production and application.

The utility model discloses an L-shaped extension tube of a breathing machine. The L-shaped extension tube comprises a sputum suction tube connector and a connector breathing machine connecting tube communicated with a sputum suction tube. An anti-splashing front film is arranged at the top of the sputum suction tube connector, a sputum suction hole allowing a sputum suction tube to be inserted is formed in the anti-splashing front film, an anti-splashing bottom film located below the anti-splashing front film is arranged in the sputum suction tube connector, and one side of the anti-splashing bottom film is fixedly connected with the anti-splashing front film. The anti-splashing bottom film has the initial state that the anti-splashing bottom film is attached to the lower portion of the anti-splashing front film when not stressed and the offset state that the other side of the anti-splashing bottom film is pushed by external force to move downwards. When the sputum suction tube needs to be inserted, the side, not connected with the anti-splashing front membrane, of the anti-splashing bottom membrane is pushed to move downwards due to insertion of the sputum suction tube, the anti-splashing front membrane is kept in the original position, and when the sputum suction tube is inserted and pulled out, due to double-layer blocking of the anti-splashing front membrane and the anti-splashing bottom membrane, the anti-splashing front membrane is prevented from splashing. Liquid can be prevented from being splashed out of the sputum suction tube connector, and operation safety is guaranteed.

The utility model relates to a root growth guiding device for mine restoration plants, which comprises an external main body serving as an external structure of the guiding device and a root guiding device. Wherein the outer main body of the guiding device is cylindrical, the outer main body of the guiding device is divided into a two-petal type structure through a longitudinal dividing line, the two-petal type structure is fixed and separated through a connecting hole and a straw connecting line, and vent holes and water permeable holes are evenly distributed in the outer main body; and the inner main body is an inner structure of the guiding device and is a moisture supply device. Wherein the internal main body of the guider is a permeation tube, the longitudinal bottom of the permeation tube is closed, and the longitudinal top end of the permeation tube is provided with a detachable two-way joint. The root system is guided to be inserted into rock wall gaps to grow, so that the root system is combined with the rock wall, the plant survival rate is improved, the plant stably and continuously grows, the plant root system completely plays a role in soil fixation and slope protection, and the greening effect is improved. The mine ecological environment is improved, and potential ecological functions are restored as soon as possible.

The invention discloses an anti-blocking bag-type dust collector. Comprising a bottom frame, an annular dust collection part, a mounting disc fixedly attached to the annular inner edge of the dust collection part, a cylindrical shell with the open end detachably assembled on the annular outer edge of the dust collection part, a filter bag with the open end detachably assembled on the mounting disc through a mounting mechanism, and a rotating ring coaxially and slidably connected with the mounting disc. The driving mechanism is used for driving the rotating ring to rotate, the first dust removal rods can make contact with the inner wall of the filter bag, the dust removal unit is assembled on the shell, an air inlet is formed in the top of the shell, an air outlet is formed in the mounting disc, and an exhaust fan is assembled on the lower surface of the mounting disc; the dust removal unit comprises a rotating frame and a plurality of groups of vertical second dust removal rods which can abut against the outer wall of the filter bag, the first dust removal rods and the second dust removal rods can tighten the filter bag, and when the first dust removal rods and the second dust removal rods rotate synchronously, the first dust removal rods can scrape dust on the surface of the filter bag, so that the ventilation capacity of the filter bag is ensured.

The utility model relates to the technical field of packaging bags, and discloses an automatic exhaust flexible packaging bag which comprises a packaging bag body, a first sealing part is fixedly installed above the packaging bag body, and a sealing piece is fixedly connected with an easy-to-connect inserting strip. The first sealing part is fixedly installed above the packaging bag, the sealing opening is formed in the first sealing part, and the easy-to-connect inserting strip is fixedly installed in the sealing opening, so that when food in the packaging bag needs to be placed in a microwave oven to be heated, the packaging bag is flatly placed, and when the food is heated at the moment, the packaging bag is placed in the microwave oven to be heated. Due to the fact that waste heat in an installation groove can expand, a first sealing part and a second sealing part are separated, the first sealing part is expanded upwards, a sealing piece is driven to be separated from the interior of an air hole, the air hole is opened, and the interior of the air hole is communicated with the interior of the packaging bag, the air hole has the ventilation effect; and the risk of expansion explosion in the packaging bag is prevented.

The utility model provides a device for fermenting tea leaves in a rolling bamboo cage, which relates to the technical field of tea leaf processing, and comprises a support frame and a transmission belt, the inner surface of the support frame is fixedly connected with a motor, the output end of the motor is fixedly connected with a rotating rod, and the outer surface of the rotating rod is fixedly connected with a first belt pulley; and bearing rods are symmetrically and rotationally connected to the inner surface wall of the supporting frame. When the tea leaf drying device is used, tea leaves are put into the drying bamboo cage formed by weaving bamboo canes, the drying bamboo cage is driven by the motor to rotate slowly, so that the tea leaves in the drying bamboo cage can be uniformly turned over, the fermentation quality of the tea leaves in the fermentation process is ensured, and meanwhile, the humidity and the temperature in the tea leaves are monitored by the two detection sensors respectively; the drying bamboo cage is self-adaptively supplemented with water or dried, the temperature and humidity in the fermentation process are controlled, it is ensured that the fermentation environment is kept in the optimal state, and the fermentation quality of tea leaves is improved.

The invention discloses a plasma air purification and disinfection treatment all-in-one machine which comprises a disinfection machine, a dehydration box assembly is fixed in the disinfection machine and comprises an inner box and a dehydration groove formed in the top of the inner box, a plurality of sets of dehydration cotton are arranged in the dehydration groove, and a filter screen plate is arranged at the bottom of the inner box; air inlet windows are formed in the two sides of the disinfection machine and communicate with the area below the filter screen plate, a picking drawer assembly is arranged on one side of the disinfection machine in a clamped mode, a switching mechanism is arranged in the dewatering tank and comprises a lead screw, a pushing plate and a blocking valve plate, and the lead screw rotates to drive the pushing plate to transversely move in the dewatering tank through a telescopic frame; the lead screw rotates to drive the stop valve plate to transversely move at the bottom of the dewatering tank through the swing frame assembly. According to the self-adaptive air dehumidification device, self-adaptive air dehumidification operation can be effectively carried out according to the actual dry and wet conditions of air, and meanwhile, the cleaning effect on the filter screen is improved.

The utility model relates to the technical field of gas treatment equipment, in particular to a fine chemical organic gas VOCS biological treatment device which comprises a shell, the inner wall of the shell is rotatably connected with a placement box, a biological agent is arranged in the placement box, the left side of the shell is fixedly connected with a gas inlet pipe, the upper end of the shell is fixedly connected with an exhaust pipe, and the lower end of the shell is fixedly connected with a gas outlet pipe. A cleaning assembly is arranged in the shell and used for cleaning the lower end of the containing box, the cleaning assembly comprises a motor fixedly connected to the lower end of the shell, the output end of the motor is fixedly connected with a rotating rod, the containing box rotates to enable a cleaning rod to clean the lower end of the containing box, and the cleaning rod moves downwards to make contact with a scraping rod. And when the moving block moves upwards, the cleaning rod is reset under the action of the spring at the moment, the lower end of the placing box is continuously cleaned, the ventilation effect of the placing box is guaranteed, and then the waste gas treatment efficiency can be guaranteed.

The invention discloses an aerosol generating product with a segmented aerosol generating matrix rod, characterized in that it comprises a smoking core material segment (1), a breathable hollow segment (2) and a filter segment (3); the smoking core material segment (1) comprises a segmented aerosol generating matrix rod and an anti-seepage / heat-conducting cigarette paper wrapping the segmented aerosol generating matrix rod, the two ends of the segmented aerosol generating matrix rod are short rod segments (11) formed by gluing tobacco particles, and the middle is a scattered particle segment (12) formed by unglued tobacco particles; the breathable hollow segment (2) and the filter segment (3) are wrapped by forming paper (5) to form a mouthpiece, and the smoking core material segment (1) and the mouthpiece are connected by a plugging paper (4). The short rod segments (11) at the two ends of the invention can ensure that the unglued tobacco particles in the middle do not fall and scatter, and there is no adhesive on the surface and gap of the unglued tobacco particles in the middle, and the axial ventilation volume, porosity and smoke release of the aerosol generating matrix rod are guaranteed. A cigarette core with high porosity can not only increase the amount of smoke generated, but also simplify the structure of aerosol generating products.

The utility model discloses a semi-closed greenhouse climate chamber which comprises a climate chamber body located on one side in a greenhouse, a vertical lifting window is arranged in the middle of the side, away from the greenhouse, of the climate chamber body, and a corresponding wet curtain is arranged on the inner side of the vertical lifting window. The upper end and the lower end of the wet curtain are connected with the upper end and the lower end of the vertical lifting window through corresponding hot-dip plate sealing pieces. The climate chamber is arranged on one side of the interior of the greenhouse, the vertical lifting window is arranged on the side, away from the greenhouse, of the climate chamber, the top pivoted window is arranged on the top of the climate chamber, the wet curtain is arranged on the inner side of the vertical lifting window, and the positive pressure fan is connected with the long air duct. When the positive pressure fan works, the top pivoted window on the top of the climate chamber is closed, and the vertical lifting window of the wet curtain is closed; cooling and heating loads are conveyed to the positive pressure fan through a pipeline and then conveyed to roots of crops through the air duct, and therefore the climate adjusting function is achieved. When the humidity of the greenhouse needs to be increased, the wet curtain water supply system works, and the positive pressure fan operates to convey the humidity into the greenhouse.

The utility model belongs to the field of steering oil tanks of steering systems of commercial vehicles, and provides a steering oil tank upper cover with rainproof and dustproof functions. The outer side of the oil tank body is coaxially sleeved with the cylindrical protective eave, the inner wall of the protective eave is in clearance fit with the outer wall of the oil tank body, the bottom end of the protective eave is lower than the upper end face of the oil tank body, and the top end of the protective eave is higher than the upper end face of the oil tank body; the large end of the funnel-shaped connecting piece is connected with the top end of the protective eave in a sealed mode, and the small end of the funnel-shaped connecting piece is connected with the bottom end of the steering oil tank upper cover body in a sealed mode. The upper cover of the steering oil tank is made into a step type, a first step is used for applying force to the tank cover by hands when the oil tank is opened or tightened, a second step is used for covering the outer edge of the upper portion of a tank body, a certain gap is reserved to guarantee air permeability of the oil tank, and oil liquid deterioration and whitening caused by splashing or side blowing leakage of rainwater into the oil tank through the upper portion of the tank body are prevented.

The utility model discloses a vacuum heat insulation container connecting pipeline, which belongs to the technical field of heat insulation containers, and comprises a connecting pipe, one end of the connecting pipe is provided with a sealing connecting sleeve, the inner surface of the connecting pipe is provided with an inner step, the inner step is provided with a built-in filtering mechanism, and the built-in filtering mechanism comprises a mounting disc. The mounting disc is slidably connected with the inner surface of the connecting pipe, an outer groove is formed in the outer surface of the mounting disc, and a thermal expansion sealing gasket is embedded in the outer groove; according to the utility model, the built-in filtering mechanism is arranged in the pipeline in a matched manner, so that stable conduction of airflow can be completed, meanwhile, good air filtering treatment can be carried out when hot airflow is conducted, dust is prevented from entering the heat insulation container, meanwhile, synchronous cleaning of the air filtering net can be synchronously realized, and the service life of the air filtering net is prolonged. Pores of the air filter screen are prevented from being blocked, the air permeability of the air filter screen is ensured while the filtering effect of the air filter screen is ensured, and the practical application effect of the whole pipeline is improved.

The utility model discloses a feeding, smashing and screening all-in-one machine which comprises a mounting frame, a feeding assembly, a smashing assembly and a double-vibration-source screening assembly, the feeding assembly is arranged at the top of the mounting frame, an induced draft fan is fixedly installed at the top of the feeding assembly, a discharging hopper is installed at the bottom of the mounting frame, and the bottom of the discharging hopper is fixedly communicated with the top of the smashing assembly. The bottom of the smashing assembly fixedly communicates with the top of the double-vibration-source screening assembly. By arranging the induced draft fan, impurities attached to the filter element can be blown into the back-blowing bag cleaner to be collected, accumulation of the impurities is avoided, and the ventilation effect of the filter element is guaranteed; by arranging the smashing assembly, materials can be efficiently smashed, the fineness of the materials is improved, and convenience is provided for subsequent screening work; and through the arrangement of the double-vibration-source screening assembly, the materials can be efficiently screened, false caking in the materials is avoided, and the screening effect is improved.

The invention relates to the technical field of automobile lamp production, and discloses a rotating disc type support conveying structure which comprises rotating clamping mechanisms, a plurality of loose claw reversing mechanisms are arranged on one sides of the rotating clamping mechanisms, and the number of the loose claw reversing mechanisms and the number of the rotating clamping mechanisms are both multiple. A disc type supporting mechanism is arranged between the multiple loose claw reversing mechanisms, a rotary air distribution mechanism is arranged at the top of the disc type supporting mechanism, and an airflow washing mechanism is arranged on the surface of the rotary air distribution mechanism. According to the rotating disc type support conveying structure, after a section of clamping process of the device is completed, the rotating clamping mechanism can be reversed through the loose claw reversing mechanism and is aligned with the airflow flushing mechanism for flushing, the situation that chippings on the clamping faces of a clamping plate and an insulating plate remain in the next clamping process is avoided, and then the probability that the chippings fall on the surface of a molybdenum bowl is reduced; and the light-emitting quality of the automobile lamp is guaranteed.

The utility model belongs to ship fuel supply technical field, specifically disclose LNG power ship fuel supply system delivery line, including cold box, gas delivery section, gas input section, GVU valve box, air input pipe, air output pipe, fan and gas engine, gas delivery section is double -walled pipe structure, including inner tube and the outer tube of bushing in the outer side of inner tube, GVU valve box includes valve piece and casing, cold box, inner tube, valve piece, gas input section and gas engine are connected in proper order, constitute gas delivery line, air input pipe, casing, outer tube, fan and air output section constitute air delivery line, and air input pipe is linked together with heat exchange structure. The utility model's gas delivery section uses double -walled pipe all -time, not only can promote the service life of gas pipeline, can also guarantee the stability of gas state in gas pipeline inside, and through heat exchange structure to the air of entering outer tube heat exchange treatment, guarantee the stability of air temperature of entering outer tube, and then guarantee the state of inner tube gas.

The utility model discloses a sunscreen cardigan, relates to the technical field of cardigan, and aims to solve the problem that the existing cardigan is inconvenient to meet the sun-shading requirement of part of users, and adopts the technical scheme that the sunscreen cardigan comprises a cardigan body and a cap which are sewn with each other, through holes are formed in the cap, a first sun-shading layer is arranged at the brim of the cap, and a second sun-shading layer is arranged at the brim of the cap. A second sunshade layer is arranged on the edge of the through hole of the hat, supporting pieces are arranged in the first sunshade layer and the second sunshade layer, and a first fixing piece and a second fixing piece are sewn to the first sunshade layer and the second sunshade layer respectively. According to the sun-proof cardigan, a user can control the first sun-shading layer and the second sun-shading layer to be pulled out so that the sun-shading effect of the cardigan on a wearer can be achieved, meanwhile, when the two sun-shading layers are pulled out at the same time, it can be guaranteed that the hat has the ventilation effect, the muggy condition caused by the fact that the hat is too tight is avoided, and the sun-proof cardigan is convenient to use. And long-time playing of the user is facilitated.

The utility model discloses a faucet water purifier which comprises a waterway switching assembly and a filtering assembly, the filtering assembly comprises a shell with a filtering cavity and a filter element arranged in the filtering cavity, the top of the shell is provided with an exhaust hole used for exhausting gas in the filtering cavity, and the shell is further provided with a floating ball valve located in the filtering cavity. And when the water level in the filtering cavity reaches the highest water level, the ball float valve closes the exhaust hole under the action of buoyancy. The exhaust hole is formed in the top of the shell of the filtering assembly, and the floating ball valve is arranged in the filtering cavity, so that when the water level in the filtering cavity does not reach the highest water level, the floating ball valve is in a state of opening the exhaust hole, and gas above the liquid level is prevented from being compressed under the action of continuously rising liquid level pressure; therefore, when the filter assembly does not discharge purified water, the compressed gas above the liquid level of the filter cavity is prevented from extruding residual liquid in the filter cavity out of the filter cavity, water leakage of a water outlet below the filter assembly is prevented, and the use experience of a user is good.

The utility model discloses an air filter quick-release structure which comprises a first shell, a second shell is arranged at the upper end of the first shell, an external air connecting pipe is fixedly arranged on one side of the first shell, an engine air inlet pipe is fixedly arranged on one side of the second shell, a filter element is movably arranged at the upper end of the interior of the first shell in a clamped mode, and an air inlet pipe is fixedly arranged on one side of the second shell. A groove is formed in the outer side surface of the upper end of the first shell, a reset telescopic rod is fixedly arranged in the groove, and a protection mechanism for preventing sundries from entering the engine air inlet pipe is arranged in the engine air inlet pipe. According to the utility model, the use effect is good, and a part of the filter element embedded into the first shell can be automatically popped out when the second shell is opened and the filter element needs to be replaced every time, so that a worker can conveniently detach the filter element.

The utility model provides an efficient cutting structure for stacked automobile seat fabric. The stacked type automobile seat fabric efficient cutting structure comprises a fabric stacking assembly, a cutting knife and a pressing head. The cutting knife is arranged on the pressing head in a protruding mode, the pressing head is used for pressing the stacked fabric assembly, and the cutting knife is used for cutting the stacked fabric assembly; the stacked fabric assembly comprises an oiled paper film, a plurality of fabric pieces and bottom punching paper which are sequentially stacked; the oil paper film faces the cutting knife, a plurality of vent holes are formed in the bottom punching paper, and the bottom punching paper is used for abutting against the workbench. A plurality of suction holes are further formed in the end, close to the cutting knife, of the pressing head, and all the suction holes face the fabric stacking assembly. According to the efficient cutting structure for the stacked type automobile seat fabric, negative pressure suction can be conducted on the fabric piece through the suction holes, so that the fabric piece can be rapidly restored after deformation, the problem that the cutting precision is low due to the deformation amount of the fabric piece is effectively solved, and finally the flatness of a tangent plane is improved.

This invention discloses a biofilter packing material for VOCs organic waste gas treatment and its preparation method, belonging to the technical field of biofilter packing materials. The biofilter packing material for VOCs organic waste gas treatment of this invention includes a nutrient slow-release core, a conductive functional shell layer, and a surface functionalized layer. The dry weight percentages of the raw materials for the nutrient slow-release core, conductive functional shell layer, and surface functionalized layer are 50%-60%, 35%-45%, and 3%-5%, respectively. The biofilter packing material for VOCs organic waste gas treatment and its preparation method proposed in this invention adopt a three-layer composite structure of a nutrient slow-release core, a conductive functional shell layer, and a surface functionalized layer. The core is responsible for the long-term supply of nutrients and carbon sources; the shell layer achieves efficient adsorption, conductive transfer, and microenvironment regulation; and the surface layer ensures the rapid colonization and targeted degradation of functional microorganisms. This spatial functional partitioning avoids mutual interference between different components and greatly improves the overall performance of the packing material.

The utility model provides dust filtering equipment for environmental protection, which comprises a filter cartridge, a fan is arranged at one end of the filter cartridge, a first filter plate is arranged in the filter cartridge, a lifting mechanism is arranged on the filter cartridge, and a cleaning mechanism is arranged at the output end of the lifting mechanism. The cleaning mechanism is in contact with one end of the first filter plate, the cleaning mechanism is used for cleaning dust adhered to the first filter plate, and the lifting mechanism is used for driving the cleaning mechanism to move up and down along the first filter plate. According to the utility model, adhered dust on the first filter plate can be cleaned regularly or as required, the first filter plate is prevented from being blocked or pores are reduced, the ventilation performance of the filter plate is maintained, the power demand of a fan is reduced, the energy consumption is saved, the filtering efficiency of filtering equipment can be improved, and the normal operation of a system is ensured; and the maintenance cost can also be reduced.

The utility model discloses a moisture-absorbing and moisture-proof plastic film, which belongs to the technical field of plastic films and comprises a base layer, a fixing layer is arranged at the top of the base layer, adsorption holes are uniformly formed in the top of the fixing layer, a moisture-absorbing layer is fixed at the top of the fixing layer, and a conducting layer is fixed at the top of the moisture-absorbing layer. A breathable layer is arranged on the top of the conducting layer, evacuation holes are evenly formed in the bottom of the breathable layer, and breathable holes are evenly formed in the top of the breathable layer. Through cooperative use of the base layer, the fixing layer, the adsorption holes, the moisture absorption layer, the conducting layer, the breathable layer, the evacuation holes, the breathable holes, the through holes, the adsorption blocks and the protective layer, the moisture absorption and moisture prevention plastic film can keep the air permeability while absorbing moisture and preventing moisture, and moisture evaporation is promoted in the moisture absorption process; the problem that the plastic film is easy to damage due to weight increase after the moisture-absorbing and moisture-proof plastic film absorbs water is avoided, so that the practicability of the moisture-absorbing and moisture-proof plastic film is improved.

The invention discloses an environment-friendly boiler combustion waste gas treatment and recovery device, which belongs to the technical field of waste gas treatment and recovery devices, and comprises a recovery tank, a waste gas treatment component and a cleaning component, wherein the inner cavity top wall of the recovery tank is fixedly connected with a motor, and the output shaft end of the motor is fixedly connected with a rotating rod through a coupling; the waste gas treatment component comprises a filter plate fixedly installed at one end of the rotating rod, and a filter screen is arranged under the inner cavity of the recovery tank and the filter plate. The invention drives the filter plate to rotate through the mutual cooperation of the motor and the rotating rod, which helps to disperse the alkaline solution sprayed by the spray gun and make it enter the waste gas treatment channel to form a water film, and the waste gas floats upward through the waste gas treatment channel and contacts with the alkaline solution, which can increase the weight of dust in the waste gas and make it settle, and at the same time, the cleaning ball swings around through the elastic rope and the upward floating force of the waste gas, and collides with the inner wall of the waste gas treatment channel, which helps to disperse the waste gas and clean the inner wall of the waste gas treatment channel.

The invention relates to the field of territorial space governance, and discloses a geographic information acquisition device for territorial space planning, which comprises a bracket, the top of the bracket is connected with a protective shell, a camera device is arranged in the protective shell, a windscreen wiper structure is arranged in the protective shell, and the windscreen wiper structure comprises a driving motor. The driving motor is in transmission connection with the first gear, the first gear is in transmission connection with the second gear, the second gear is in transmission connection with the transmission rod, the two ends of the transmission rod are connected with the worm, the worm is in transmission connection with the worm gear, and the worm gear is in transmission connection with the reciprocating lead screw. The invention effectively solves the problems that the geology needs to be photographed and collected every other distance during geographic information collection for territorial space planning at the present stage, in rainy and snowy days, rain and snow can shield the camera to cause blurred photographing, and in the condition of poor environment caused by sand and dust, the geological information is not collected. And the camera is also polluted, so that the camera shooting is blurred.

The present invention relates to a manhole cover ventilation type vacuum manhole, comprising a manhole body and a manhole cover arranged at the upper end of the manhole body, a sealing partition is arranged inside the well body, and the inside of the well body is divided into a sewage chamber and an equipment chamber, a liquid level sensor, a vacuum sewage valve and a first pneumatic controller are installed in the equipment chamber, a vent is arranged at the upper end of the manhole cover, a ventilation and sewage discharge device connected to the vent, a second pneumatic controller for driving the ventilation and sewage discharge device, a pressure relief device and a water collection and drainage device for discharging condensed water in the equipment chamber are arranged in the equipment chamber; the present invention can ensure that the internal core components, the liquid level sensor, the vacuum sewage discharge valve and the first pneumatic controller, work reasonably and effectively, and can also ensure reasonable ventilation inside the vacuum well, and solve the problems of sewage detection and sewage discharge on the manhole cover, avoiding excessive energy consumption and the risk of misoperation or paralysis of internal equipment.