79results about How to "Won't clog" patented technology

The invention relates to an ice crystal evaporator and an ice crystal water cooling device producing from the same, belonging to the technical field of refrigeration. The ice crystal evaporator is characterized in that a liquid inlet channel is formed by an evaporator tube, a liquid inlet and a liquid outlet in a tubular casing; and the outer channel of the evaporator tube of the tubular casing is divided into more than one S-shaped channel forming a water return channel through a water inlet of a water divider and a water outlet of a water collector. The ice crystal water cooling device is characterized in that the return air inlet of the ice crystal evaporator is communicated with a compressor, a condenser, a liquid feeding valve, a dry filter, a liquid feeding electromagnetic valve anda thermostatic expansion valve in sequence, and then is communicated with the liquid inlet of the ice crystal evaporator; a cooling water inlet / outlet of the condenser is connected with a cooling tower in series; and a water inlet / outlet of the ice crystal evaporator is communicated with a water circulating pump and an ice crystal energy storage tank in series. The invention has the advantages ofhigh cooling efficiency, no icing and low cooling temperature and is suitable for production of energy storage central air-conditioning, marine fishing, seafood processing, fruit, vegetable or meat processing, and the like; the cooled medium is municipal water.

The invention discloses a drip irrigation device for agricultural irrigation, comprising a water pipe connected to a pump, the water pipe connected to the pump is connected to a number of irrigation mechanisms, the irrigation mechanisms are respectively connected to control mechanisms, the irrigation mechanisms are respectively connected to the control mechanisms, the irrigation mechanisms are provided with an irrigation bottom, an irrigation middle, and an irrigation top from bottom to top, the number of irrigation mechanisms and control mechanisms can be determined according to the conditions of agricultural land, the part inserted into the ground is designed to be in the form of a cross arrow, so that the insertion into the ground is more stable and not easy to topple over; by setting the control mechanism, the amount of water dripping into the ground can be controlled, which will not cause excessive water content in the root system and a decrease in yield; the device reduces agricultural irrigation costs, has low maintenance costs, and can still manually adjust the water output when the control mechanism is damaged, which is convenient and quick.

The invention belongs to the technical field of oil exploitation foam plugging agents, and particularly relates to nano-modified CO2 multi-chain alkyl amidine, a CO2 response foam plugging agent, a preparation method and application. The CO2-responsive multi-chain alkyl amidine provided by the invention is obtained by electrostatic adsorption of an active adsorption center (tertiary carbon or tertiary nitrogen) of the multi-chain alkyl amidine and part of negatively charged nano silicon dioxide-calcium carbonate, is sensitive in stimulation response to CO2, has good foaming amount, foam stability and temperature and salt resistance, is environment-friendly and easy to degrade, and has a good application prospect. The foam plugging agent can avoid pollution of an oil layer and plugging of a stratum and can be used for preparing a CO2 response foam plugging agent.

The utility model relates to the technical field of foundation pit soil body reinforcement, in particular to a foundation pit soil body reinforcement device which comprises a guide pipe, a conical head is movably installed at the bottom end of the guide pipe, an anti-blocking mechanism is arranged between the guide pipe and the conical head, and a pressing disc is arranged at the top end of the guide pipe. And a supporting plate is movably mounted at the top end of the guide pipe. The guide pipe, the conical head and the supporting plate are matched for use, the conical head is kept downward during pressing, the conical head is of a conical structure, so that when the conical head is pressed into soil, resistance is small, the discharging hole is attached to the pipe wall of the guide pipe, breakage cannot be caused, and due to the fact that the outer diameter of the conical head is larger than that of the guide pipe, the conical head is not prone to falling off. When the discharge hole is exposed, a large amount of soil does not exist on the outer side of the discharge hole, and even if a small amount of soil exists, due to the fact that the soil is chiseled, the structure is loose, and filling is more convenient.

The utility model discloses a waterproof mortar preparation device, and particularly relates to the technical field of waterproof mortar preparation devices, the waterproof mortar preparation device comprises a bottom plate, the top end of the bottom plate is provided with a preparation box, the top end of the preparation box is fixedly provided with a feeding box, the feeding box is communicated with the preparation box, and the top end of the feeding box is rotatably provided with a second rotating shaft; the upper portion of the second rotating shaft penetrates through the feeding box, a third bevel gear is fixedly installed at the top end of the second rotating shaft, two sets of second smashing fans which are symmetrically distributed are fixedly installed on the lower portion of the second rotating shaft, and a first rotating shaft penetrates through the middle of the second rotating shaft. And under the mutual cooperation of a first bevel gear, a second bevel gear and a third bevel gear, a first crushing fan and a second crushing fan rotate oppositely to crush the entering waterproof mortar raw materials, so that the blockage of the feeding hole is avoided, and the raw materials are mixed more uniformly.

The utility model relates to the field of plastic molds, and discloses an anti-glue-overflow plastic mold which comprises an upper mold, an extrusion assembly is slidably connected into the left end of the upper mold, the right portion of the extrusion assembly is in contact with a closed shaft, and the side end of the left portion of the closed shaft is fixedly connected with a sliding block. The side end of the sliding block is elastically connected to the interior of the upper mold through a first spring, the side end of the left portion of the upper mold is fixedly connected with an injection molding assembly, the exterior of the injection molding assembly is fixedly connected with a fixing groove, and the upper end and the lower end of the interior of the fixing groove are slidably connected with an upper sleeve and a lower sleeve correspondingly. And the rear parts of the upper sleeve and the lower sleeve are connected with a connecting pipe in a sliding manner. According to the plastic injection mold, the sealing shaft is pulled to slide through the first spring to communicate the connecting pipe with the middle of the upper mold, hot air is heated through the air inlet pipe, then plastic can be sprayed out from the interior of the middle of the upper mold and cannot be blocked, and during injection molding, the slope block can extrude the sealing shaft to seal a hole so that injection molding can be conducted.

The invention provides an improved thickener which comprises a conical container, a feeding pipe is arranged on the middle lower portion of the conical container in a communicating mode, feeding in the tangential direction is completed through the feeding pipe, a material guiding pipe is arranged at the bottom of the conical container in a communicating mode, and a forced circulation pump is arranged on one side of the conical container. The forced circulation pump is communicated with a forced circulation outlet pipe and a forced circulation inlet pipe, the forced circulation outlet pipe is communicated with the material guide pipe, the middle-lower part of the conical container is communicated with a material returning pipe, the material returning pipe is communicated with the forced circulation inlet pipe, a first motor is mounted at the top of the conical container, and a second motor is mounted at the bottom of the conical container. A stirring shaft is movably arranged in the conical container and is driven by the first motor. The problems that an existing thickener is poor in use effect, and a material guide pipeline and a valve at the bottom of the thickener are very prone to hardening and blocking are solved.

The present invention relates to a turbidity meter, comprising a measuring cavity, a water inlet guide groove and a measuring light source, wherein the water inlet guide groove is fixedly connected to the inner side of the measuring cavity, and the outer upper end of the measuring cavity is fixedly connected to the measuring light source. The present invention overcomes the shortcomings of the prior art, and has the characteristics of being provided with a solenoid valve at the venting port, and the solenoid valve is connected to a time controller in a circuit, and can be controlled in a timed manner by the time controller after being powered on. According to actual operation requirements, within the set time period of the time controller, the time controller can switch the automatic switch on and off, and the automatic switch linkage solenoid valve can realize the regular opening and closing of the pipeline by the rotating rod and the valve within the set time period, so that the venting port can be emptied of the suspended matter on the upper end of the water sample in the measuring cavity through the solenoid valve in a timely manner, so as to avoid the turbidity meter measuring value being lower than the actual turbidity of the water sample, and ensure the measurement effect.

The utility model provides water quality collection and detection equipment, which relates to the technical field of water quality detection, and comprises a bottom plate, the top of the bottom plate is fixedly connected with a support plate, the top of the support plate is provided with two water quality detectors, one side of each water quality detector is fixedly connected with a water pump, and one end of each water pump is fixedly connected with a connecting pipe. And one end of the connecting pipe is fixedly connected with a folding pipe, the bottom of the folding pipe is fixedly connected with a communicating pipe, and the bottom of the communicating pipe is fixedly connected with a filter screen. When a collected water sample is detected, the distance between the communicating pipe and the water surface can be kept, the influence of scale on the purity of the water sample is reduced, the service life of the communicating pipe is prolonged, impurities on the water surface are effectively filtered by the filter screen, and the water sample is ensured to enter the water quality detector for detection; impurities are prevented from entering the detection cavity of the water quality detector, and the water quality detector is protected.

The application provides a self-catalytic reformer based on a 3D printing technology and a manufacturing method thereof, and the method comprises the following steps: S1, respectively taking nickel-based alloy powder and / or iron-based alloy powder and nickel-aluminum alloy powder, mixing the powders uniformly in a mixing device to obtain printing powder; S2, using three-dimensional drawing software to obtain a shell structure with a reserved cavity; S3, using porous design software to obtain a porous structure, and the porous structure is matched with the reserved cavity of the shell structure; S4, 3D printing the self-catalytic reformer: taking the printing powder in step S1 and adding the powder into a powder supply bin of a 3D printer, then respectively taking the shell structure in step S2 and the porous structure in step S3 and introducing the structures into the 3D printer, and using 3D printing technology to print an integrally formed self-catalytic reformer. The self-catalytic reformer is obtained by the above method. The structure and function are integrated, no additional catalyst is needed, the catalytic efficiency is improved, and the production cost is reduced.

The invention provides a microchannel reaction evaluation method of a pyromellitic dianhydride catalyst. The microchannel reaction evaluation method comprises a feeding process, a vaporization process, a reaction process, a product separation process, a control process and an analysis process. Discharging a mixture of a reaction product and an unreacted reactant from the reaction tube, cooling, converting the reaction product and the unreacted durene from a gas phase into a liquid phase, separating in a gas-liquid separator, separating out gases such as air in a tail gas form, and feeding liquid into a liquid collecting tank; a reaction tube, a gas-liquid separator and a liquid collecting tank are sequentially arranged in a heat preservation box, the heat preservation box is divided into heat preservation sections with different temperatures according to different separation devices, the heat preservation sections can be integrated or arranged to be in a multi-body type according to needs, and the temperature of the reaction tube can be controlled in a multi-heat-preservation-box step-by-step temperature control mode and a heat preservation box, a heating belt and other combined temperature control modes. Accurate temperature control of reactants and reaction products is achieved, the reaction products can be efficiently collected, and guarantee is provided for accuracy of catalyst analysis and evaluation data.

The utility model discloses an etching device has: liquid medicine tank, the liquid storage tank is communicated with liquid medicine tank through the pipeline, and is equipped with the filter machine on the pipeline of liquid storage tank and liquid medicine tank, etching tank, liquid medicine tank is communicated with etching tank through the liquid pump, etching tank is communicated with the liquid storage tank through the back liquid pipe, the liquid tank is communicated with liquid medicine tank through the pipeline. Solve the problem of spraying maintenance, through the reestablishment etching system, etching liquid medicine is discharged to the liquid storage tank alone, then through the automatic filter machine filters glass slag and automatically discharges the slag simultaneously, and the clear liquid is filtered back to the liquid medicine tank, to maintain the liquid medicine tank without glass slag, can maintain spraying to a great extent and will not block the nozzle, avoids the personnel frequent maintenance equipment problem.

The utility model discloses a cooking device for preparing manual soy sauce, which structurally comprises an outer box and an inner cylinder, raw materials can be poured into the inner cylinder through a feed inlet, the raw materials are soaked in water under the action of water pumping of a water pump, then the raw materials are heated and cooked through a heating piece in a heating pipe, and then the raw materials are discharged through a water outlet. Then external steam is input into the outer box through a steam inlet to cook the raw materials, and a rotating shaft can be regularly driven by a motor to enable a rotating rod to turn over the raw materials in the inner cylinder, so that the cooked surface of the raw materials is more uniform during cooking, and the situation of non-uniform cooking caused by internal accumulation of the raw materials is avoided; the electromagnetic valve in the discharging opening is opened, the scraping plate is driven by the rotating rod together so that raw materials on the inner wall of the inner cylinder can be scraped downwards, the situation that the raw materials adhere to the inner wall of the inner cylinder is avoided, the situation that the raw materials are blocked in the discharging process is avoided through the effect of the spiral push rod arranged at the lower end, and the discharging effect is better.

The utility model provides a safety air bag and an automobile. The safety air bag comprises an air bag body and a drawstring reactor. A first air release opening is formed in the airbag wall of the airbag body; the outer surface of the air bag body is provided with a first blocking piece and a second blocking piece which are located at the first air leakage opening. The first side of the first blocking piece is fixed to the first side of the first air leakage opening, and the first side of the second blocking piece is fixed to the second side of the first air leakage opening. A first drawstring hole is formed in the second side of the first separation blade, and a second drawstring hole is formed in the second side of the second separation blade; the drawstring penetrates through the first drawstring hole and the second drawstring hole, and can pull the first baffle plate through the first drawstring hole and pull the second baffle plate through the second drawstring hole; the drawstring extends into the inner cavity of the air bag body from the first air outlet, and the first end of the drawstring is connected to the drawstring reactor. According to the air bag restraint system, the inflation efficiency of the air bag restraint system can be guaranteed, and meanwhile the air bag restraint system can be prevented from hurting passengers with small weight or incorrect sitting postures when unfolded.

The invention relates to an atomizing structure and an aerosol generating device, the aerosol generating device comprises a battery structure, a suction nozzle and an atomizing structure, the suction nozzle is communicated with the atomizing structure, and the battery structure is electrically connected with the atomizing structure. A main oil cavity and a ventilation oil cavity are formed in the atomization structure; one end of the ventilation oil cavity is communicated with the main oil cavity, and the other end of the ventilation oil cavity is communicated with external atmosphere; a ventilation piece is arranged between the ventilation oil cavity and the main oil cavity; the ventilation piece can prevent liquid in the main oil cavity from entering the ventilation oil cavity; the air exchange piece can allow air in the air exchange oil cavity to enter the main oil cavity; an atomizing medium is stored in the main oil cavity; a ventilation medium is stored in the ventilation oil cavity; the viscosity of the air exchange medium is smaller than or equal to that of the atomizing medium. According to the aerosol generating device, the air exchange oil cavity is additionally arranged for air exchange, so that the air exchange of the aerosol generating device is smooth, and the smoking taste is good.

The utility model relates to prestressed corrugated pipe technical field, proposes a kind of prestressed corrugated pipe exhaust device, including prestressed duct corrugated pipe, the left side of prestressed duct corrugated pipe is provided with inlet, the right side of prestressed duct corrugated pipe is provided with outlet, the top of prestressed duct corrugated pipe is provided with exhaust hole, the surface of prestressed duct corrugated pipe is attached with plastic arc-shaped pressing plate exhaust pipe, the top of plastic arc-shaped pressing plate exhaust pipe is fixedly connected with exhaust pipe interface, the utility model avoids the problem that traditional exhaust pipe inserts into prestressed corrugated pipe too long and causes steel strand bundle to penetrate into difficulty and extrusion block pipe etc., guarantees that steel strand bundle penetrates smoothly and exhaust pipe is unobstructed, avoids the problem that traditional exhaust pipe inserts into prestressed pipe too short and causes plastic tube to separate from arc-shaped pressing plate etc., guarantees that subsequent grouting will not block exhaust pipe.

The utility model discloses a kind of underflow slurry pumps, it includes: motor, the motor is arranged on motor support, one end of the motor support is provided with bearing support, intermediate connecting pipe is provided on the bearing support;Slurry pump body, the slurry pump body is connected with the intermediate connecting pipe, impeller is provided in the slurry pump body, the rear cover plate of the impeller is provided with a plurality of back vanes;Shaft, the shaft is built in the intermediate connecting pipe, one end of the shaft is connected on the output shaft of the motor, the other end of the shaft is connected the impeller, sliding bearing is provided on the shaft, intermediate support is provided on the sliding bearing, the intermediate support is connected with the intermediate connecting pipe.The utility model compared with prior art by increasing sliding bearing on the shaft, increase fulcrum, reduce the flexible deformation amount in the process of shafting operation, ensure the stability of impeller operation, reduce the risk of broken shaft, good safety.

The present invention discloses a conical bottom-expanding cyclone rainwater outlet, which includes a filter chamber, a cyclone chamber and a sludge chamber from top to bottom; the top of the filter chamber is open, and a first filter device can be detachably installed; a second filter device can be detachably installed inside the filter chamber; a water outlet is provided on the side wall of the cyclone chamber, and an annular guide plate is arranged along the inner wall of the cyclone chamber in an annular direction, and the lower end of the annular guide plate faces the water outlet to guide rainwater to the water outlet and discharge it. The present invention can ensure that the rainwater outlet will not be blocked, solve surface source pollution, and when cleaning, it only needs to take out the slag blocking net and remove the garbage on the slag blocking net, without manual digging.

This utility model relates to the technical field of water conservancy construction equipment, and discloses a dredging device for water conservancy construction, including a sludge treatment pipe. A cover plate is sealed at the tail end of the sludge treatment pipe, and a sewage guide pipe is connected to the front end of the sludge treatment pipe. A rotating shaft is rotatably installed inside the cover plate, with its front end extending into the sewage guide pipe and a feeding auger installed on its outer side. Multiple sets of cutting blades are installed on the outer side of the portion of the rotating shaft located inside the sludge treatment pipe. A water pump is connected to the upper side wall of the sludge treatment pipe, and a water guide pipe is installed at the water inlet end of the water pump. A sewage discharge pipe is connected to the rear part of one side wall of the sludge treatment pipe, and a sludge extractor is installed at the other end of the sewage discharge pipe. The advantages of this utility model compared with the prior art are: the feeding auger collects the sludge into the sludge treatment pipe; the water pump and the water guide pipe draw water from the upper part of the river into the sludge treatment pipe; the multiple sets of cutting blades cut and break up the sludge, and mix it evenly with the water, resulting in a higher water content in the sludge and preventing sludge blockage inside the sewage discharge pipe.

The utility model relates to the technical field of pile foundation pouring, in particular to a green building pile foundation pouring guiding device which comprises a bearing plate, a limiting sleeve is welded to the top of the bearing plate, a material guiding pipe is arranged in the limiting sleeve in a penetrating and sleeved mode, a hopper is arranged at the top end of the material guiding pipe, and vibration motors are installed on the two sides of the hopper through installation frames. Supporting assemblies are arranged at the two ends of the top of the bearing plate, each supporting assembly comprises structural blocks welded to the two sides of the hopper and protective sleeves welded to the two ends of the top of the bearing plate, supporting pipes are arranged in the protective sleeves in a penetrating and sleeving mode, and one sides of the protective sleeves are connected with first fixing bolts through threaded grooves; the vibration motor vibrates between the material guide pipe and the hopper, so that concrete cannot be accumulated and blocked between the material guide pipe and the hopper, and the top end of the fixed supporting pipe abuts against the structural block to support the hopper, so that the hopper cannot incline.

The utility model belongs to the technical field of concrete-filled steel tube supports, and particularly discloses a concrete-filled steel tube support connecting device with a reinforcing structure, which comprises a left steel tube and a splicing tube, the splicing tube is inserted into the right side of the inside of the left steel tube, and a right steel tube is sleeved outside the right side of the splicing tube. Screw holes are transversely formed in the front ends and the rear ends of the top ends and the bottom ends of the splicing pipes correspondingly, and sliding grooves are formed in the front ends and the rear ends of the upper portions and the lower portions of the surfaces of the left steel pipe and the right steel pipe correspondingly. According to the concrete-filled steel tube support connecting device with the reinforced structure, screw holes are transversely formed in the front and rear positions of the top end and the bottom end of a splicing pipe correspondingly, a left steel tube and a right steel tube are connected to the two sides of the splicing pipe in a sleeving mode, and then a threaded block is pushed along a sliding groove, so that a push block on the side face of the threaded block is attached to the surface of the splicing pipe; the threaded blocks and the threaded holes which are consistent in horizontal direction are aligned, the screws are screwed in for reinforcement, the nuts are connected to the two sides in a sleeving mode, and the object is screwed tightly, so that the problem of insufficient connection strength is solved.

This utility model relates to the technical field of konjac processing equipment, and specifically discloses an alkaline water circulation device for processing konjac gel products. It includes a tank, with a circulating alkaline water tank and a new alkaline water tank located above the tank, and a circulation pipe connecting the tank and the circulating alkaline water tank. Inside the tank, from top to bottom, are arranged a mesh plate, a conveyor belt, a rotating belt, an output belt, and a filter screen. A pH meter is installed inside the circulating alkaline water tank. This utility model establishes a circulation pipe and installs a pH meter inside the circulating alkaline water tank. The circulating alkaline water tank is also connected to the new alkaline water tank, maintaining a suitable pH value for the alkaline water in the circulating alkaline water tank, ensuring full utilization of the alkaline water, and saving energy. This utility model incorporates a rotating belt, changing the entire curing process to an up-and-down curing method, fully utilizing the cavity 11, and reducing space occupation. This utility model also improves production efficiency and makes cleaning the filter screen convenient and quick.

The utility model belongs to the field of iron removal devices, particularly relates to a zirconium oxide powder iron removal device, and aims to solve the problems that the existing zirconium oxide powder is directly poured into a feeding box, blockage is possibly caused and the iron removal efficiency is reduced during iron removal, a magnetic rod is directly placed in the zirconium oxide powder in a traditional iron removal mode, the iron removal capability is poor, and the iron removal efficiency is high. In order to solve the problems that in the prior art, in the prior art, powder and magnetic bars are not in uniform contact, the following scheme is provided that the device comprises an iron removal box, a magnetic cavity is formed in the circumferential interior of the iron removal box, a rotating shaft is rotationally connected to the interior of the magnetic cavity, a spiral magnetic conductive block is fixedly connected to the circumference of the rotating shaft, and a conical block is fixedly connected to the circumference of the rotating shaft. The motor drives the rotating column to rotate, the rotating column drives the multiple rotating plates to rotate, quantitative powder conveying is facilitated, blockage in the feeding box is avoided, a magnetic field forms a high-density magnetic field in the magnetic cavity through the magnetic conduction loop, the magnetic conduction blocks in the magnetic cavity are magnetized to generate a high-intensity magnetic field, and opening and closing of the magnetic field are conveniently controlled.

Provided is a slurry-impregnated sheet manufacturing device capable of manufacturing a slurry-impregnated sheet having a uniform slurry impregnation amount with good productivity. This apparatus for manufacturing a slurry-impregnated sheet obtained by impregnating a fiber sheet or a porous sheet with a slurry obtained by dispersing particles in a solvent is provided with: a transport device that transports the fiber sheet or the porous sheet; the coating device is used for metering and coating the slurry on the fiber sheet or the porous sheet; and an impregnation device which is located on the downstream side of the coating device in the sheet conveyance direction, applies an external force to the fiber sheet or the porous sheet, and impregnates the particles into the fiber sheet or the porous sheet, the coating device having a die.

The embodiment of the present application provides a sewage aeration treatment box and a treatment process thereof, which relates to the technical field of sewage aeration treatment. The sewage aeration treatment box includes: a treatment box storage mechanism, a rotation drive connecting mechanism and an aeration mechanism. The treatment box storage mechanism includes a sewage storage box, and the outer side of the sewage storage box is respectively provided with a connected drainage pipe and a sewage pipe; the rotation drive connecting mechanism includes a beam frame, a motor, a pipe fitting and an outer shell, the beam frame is arranged above the sewage storage box, the motor is installed on the beam frame, and the outer shell is movably sleeved on the outside of the pipe fitting. The sewage aeration treatment box adopts a dynamically rotating spherical shell, which cooperates with the micropores on the top and bottom elastic diaphragms to replace the traditional fixed aeration disk, which can not only realize that the discharged microbubbles quickly fill the entire tank, but also the micropores arranged on the surface of the elastic diaphragm have a good anti-blocking effect, ensuring that the aeration mechanism can stably output microbubbles for a long time.

The utility model relates to the technical field of agricultural machinery, especially is used for a kind of cultivator for ridging operation.The cutter shaft with cutter head is installed between the lower end of the frame and both side plates by bearing;The first gear box is fixedly installed between the upper side of cutter shaft and both side plates, the rear of first gear box is provided with second gear box;First gear box is provided with first gear box input shaft for connecting the output end of self-propelled power machinery, the output end of first gear box is drivingly connected with cutter shaft;First gear box and second gear box are provided with the first conveying belt of longitudinal transmission and the second conveying belt of horizontal transmission, the second conveying belt is located in the rear of first conveying belt, first conveying belt is inclinedly arranged with low front and high rear, for receiving the soil thrown to rear by cutter head and conveying the soil to rear end, the rear end of first conveying belt is located above the feed end of second conveying belt, and the transmission direction of second conveying belt is perpendicular to the walking direction.The cultivator, the conveying route of soil is completely completed by conveying belt, and the channel is not blocked, the soil is uniform and consistent, and the soil effect is good.

The utility model relates to the technical field of activated carbon filters, in particular to an activated carbon filter with a self-cleaning function, which comprises a movable base, a settling tank is fixedly connected to the left of the upper end of the movable base, a blow-off pipe is fixedly connected to the middle of the left end of the settling tank, and a through hole is formed in the middle of the upper end of the settling tank. A through connecting hole is formed in the middle of the right end of the settling tank. According to the activated carbon filter with the self-cleaning function, the large-size activated carbon net, the medium-size activated carbon net and the small-size activated carbon net are arranged, so that the large-size activated carbon net, the medium-size activated carbon net and the small-size activated carbon net can be respectively positioned between the upper cleaning brush and the lower cleaning brush; the filter screen can well intercept and filter impurities with different sizes in water, and can continuously wipe and brush off the impurities attached to the screen surface, so that the self-cleaning function of the filter screen in the filter is realized, and the filter can be normally used for a long time.

This utility model discloses a leaf collection vehicle, relating to the field of urban sanitation technology. The vehicle includes a vehicle body equipped with a negative pressure trash can, a leaf collection device, a leaf collection device fixing mechanism, and a sweeping device. The leaf collection device includes a suction port, which comprises a housing and a suction port insert. The housing has a suction channel extending vertically upwards from the bottom of the housing. The bottom of the suction channel has a bottom opening, and a suction port is located on the side of the suction channel near the bottom. The bottom opening connects to and is through the suction port. A suction port insert is located at the suction port, and the insert can move towards the suction port to cover it and move away from it to expose it. The suction port can change size using its shape and structure to prevent clogging. Using this leaf collection vehicle greatly improves the efficiency of sweeping up lightly littered objects such as leaves and branches.

The utility model discloses a three-dimensional high-quality seedling and breeding device, and relates to the technical field of seedling and breeding. The cleaning device comprises a rectangular bottom plate, wherein a water circulation mechanism and a cleaning mechanism are arranged on the rectangular bottom plate; the device comprises a rectangular bottom plate, two supporting frames are fixedly connected to the top of the rectangular bottom plate, hollow pipes rotationally penetrate through the two supporting frames, pentagonal supporting frames are fixedly connected to extending parts of the sides, away from the supporting frames, of the two hollow pipes, and a plurality of first rotating shafts are rotationally connected to the sides, away from the supporting frames, of the two pentagonal supporting frames; the outer walls of the first rotating shafts are fixedly connected with a plurality of containing frames correspondingly. The water circulation mechanism is arranged, so that the problems that excessive precious water resources are consumed due to the fact that a large amount of water is needed in the seedling raising process, water circulation is inconvenient, and the seedling raising cost is greatly increased due to the fact that new water is continuously purchased for irrigation are solved.