26results about How to "Avoid bringing in" patented technology

This invention provides a solution filling device for a lithium bromide hot and cold water unit, including a solution tank, a self-priming pump, a self-priming pump outlet pipe, a control valve inlet pipe, and a control valve. Both the self-priming pump and the control valve are installed on the top of the solution tank. The inlet of the self-priming pump is connected to the solution tank, and the self-priming pump extends into the interior of the solution tank through the outlet pipe, thereby drawing the solution from the solution tank into the solution tank. The control valve extends into the interior of the solution tank through the inlet pipe, and its outlet is connected to the lithium bromide unit. Opening the control valve transfers the solution from the solution tank into the lithium bromide unit. This design avoids the intake of air, and even if air is drawn in, it can escape through the vent at the top. The degassed solution automatically enters the space on the other side from the upper part of the partition and then enters the lithium bromide unit through the control valve inlet pipe, thus preventing the introduction of air and improving filling efficiency.

This utility model relates to a fountain structure for ecological restoration of eutrophication in a landscape lake, including a water inlet tank. A filter screen is installed on the inner wall of the water inlet tank. Multiple water inlets are opened on the outer surface of the water inlet tank, and multiple water inlets are opened on the upper surface of the water inlet tank. A protective box is installed on the upper surface of the water inlet tank, and a first motor is installed on the inner bottom wall of the protective box. This utility model, through a dual composite water inlet structure of water inlets and water inlets, combined with the filter screen installed on the inner wall, can intercept large particles of debris such as aquatic plants and large-diameter organic debris, avoiding the problem of device clogging. The first motor drives the rotating rod and stirring rod to rotate at high speed, and the resulting vortex can disperse algae clusters and fine organic debris in the water inlet tank, preventing them from depositing at the bottom of the water inlet tank to form an anaerobic sediment layer. This design avoids secondary pollution and also prevents deposited debris from being carried into the subsequent biological treatment stage by the water flow, ensuring the stability of the microbial degradation environment.

This invention discloses a brush washing and drying machine, including a brush assembly, a washing assembly, and a drying assembly. The washing assembly includes a housing and a squeezing wheel penetrating the housing. A sealing assembly is provided on the side wall of the housing. The sealing assembly includes a first water-blocking component and a fixing ring sleeved on the squeezing wheel. The fixing ring is located inside the housing and has a limiting groove. The first water-blocking component has a through hole. A second water-blocking component sleeved on the squeezing wheel is also provided between the first water-blocking component and the through hole. One end of the second water-blocking component is movably disposed in the limiting groove, and the other end has a protruding limiting part located on the side of the first water-blocking component away from the fixing ring. The size of the limiting part is larger than the size of the through hole. There is an movable gap between the second water-blocking component and the first water-blocking component. Multiple rollers are provided inside the brush assembly, and the rollers are connected to the housing of the brush assembly through the sealing assembly. This invention ensures the sealing effect of the device and has a long sealing life.

The application relates to a hinge structure and a door assembly. The hinge structure comprises a fixed hinge side, a movable hinge side, a connecting shaft and a dustproof shaft sleeve. The fixed hinge side comprises a first plane part, a first shaft sleeve part and a second shaft sleeve part. The first plane part comprises a first surface and a second surface. The movable hinge side comprises a second plane part and a third shaft sleeve part. The second plane part comprises a third surface and a fourth surface. The connecting shaft passes through the first shaft sleeve part, the second shaft sleeve part and the third shaft sleeve part in sequence. In a closed state, the included angle between the first plane part and the second plane part is 180 DEG. The first plane part and the second plane part are arranged on the two sides of the connecting shaft. A stepped surface is formed between the first plane part, the first shaft sleeve part and the second plane part. In an open and closed state, the included angle between the second plane part and the first plane part is less than 180 DEG. The movable hinge side approaches the first surface and rotates.

The utility model relates to a dust removal device for feeding of an injection molding machine. The dust removal device comprises a rack and a material mixing barrel, a feeding pipe is arranged at the bottom of the material mixing barrel, an inclined feeding pipe is arranged at the top of the material mixing barrel, a feeding hopper is arranged at one end of the feeding pipe, a filtering sleeve is rotationally installed in the feeding pipe, and a dust suction assembly is arranged on the rack; the feeding hopper is used for feeding materials, the materials are conveyed to the mixing barrel through the feeding pipe to be mixed and then conveyed to the injection molding machine to be fed, during feeding, the rotating filtering sleeve screens dust of the materials, the dust suction assembly sucks dust into the feeding pipe, the materials roll in the rotating filtering sleeve to be subjected to dust removal, and the dust removal device has the good dust removal effect on the materials.

This invention discloses a self-cleaning platform screen door for rail transit, belonging to the technical field of rail transit. It includes a door frame, with a motor mounted on the top of the frame. The output shaft of the motor is connected to a connecting shaft via a pulley mechanism. A gear is fixedly sleeved on the outer side of the connecting shaft, and a rack is fixed to the top of the platform screen door via a rod. It also includes a cleaning mechanism located on the inner side of the door frame. The cleaning mechanism cleans the surface of the platform screen door using a combination of sweeping and vacuuming. This self-cleaning platform screen door for rail transit, by combining a rolling cleaning brush with a vacuuming structure, achieves dynamic cleaning of impurities and dust on the platform screen door, avoiding problems of untimely cleaning and increased cleaning difficulty. Furthermore, the platform board connecting the platform screen door and the vehicle can absorb pedestrians' feet and fallen impurities and dust, reducing the amount of impurities and dust brought into the vehicle.

The utility model belongs to the technical field of automobile shock absorber, specifically relates to a linear motor shock absorber, which comprises an electromagnetic coil, a permanent magnet, a core shaft and a sleeve outside the electromagnetic coil, one of the electromagnetic coil and the permanent magnet is connected on the outer side wall of the core shaft, and the other is arranged on the inner side wall of the sleeve, further comprises a displacement sensor, the upper end of the sleeve is equipped with a guide sleeve, the lower end of the sleeve is equipped with a lower limit plate, the core shaft is located inside the guide sleeve and protrudes upwards, a first sliding bearing and a sealing ring located on the top surface of the first sliding bearing are arranged between the core shaft and the guide sleeve, the first sliding bearing and the sealing ring are fixedly arranged on the inner side wall of the guide sleeve, and the first sliding bearing and the sealing ring are in sealed contact with the outer side wall of the core shaft and axially slide. The electromagnetic coil and the permanent magnet are always located in the sleeve, the sealing ring and the core shaft are matched to seal the through hole on the guide sleeve, impurities are prevented from entering the sleeve to damage the electromagnetic coil and the permanent magnet, and the working reliability of the linear motor shock absorber is improved.

A falling protector with a rope body cleaning brush is provided with a shell, the shell is provided with an outlet, and a falling protector body and a speed reducer are arranged in the shell. A main shaft is fixed in a shell of the falling protector body and used for arranging a rotating hub, a volute spiral spring is connected between the main shaft and the rotating hub, a rope body is wound on the rotating hub, and a brake assembly is combined on one side of the rotating hub. The speed reducer is fixed in the shell and is configured to be jointed with the brake assembly when the rotating speed of the brake assembly exceeds a preset rotating speed; a brush unit with a plurality of radial bristles is fixed at the outlet, and one end of the rope body is in contact with the inner ends of the bristles when penetrating through the outlet; therefore, when the rope body is pulled out of the shell and then rolled back by the rotating hub, metal filings or dirt attached to the rope body can be cleaned through the bristles, the interior of the shell is kept clean, and the falling protector operates smoothly without being hindered.

The invention relates to the technical field of logistics intelligent sorting, in particular to a dynamic weighing and sorting method suitable for a high-speed logistics scene, which comprises the following steps: acquiring shape parameters of to-be-sorted goods and a plurality of adjacent goods, and acquiring a historical goods sequence of each matched sorting port; the density and the connection condition of the to-be-sorted goods and the adjacent goods are analyzed, and the sorting priority of the to-be-sorted goods is obtained; according to the distribution of the sorting sequence and the shape parameters of all the goods in the historical goods sequence of each matched sorting opening, the stacking compactness index of each matched sorting opening is obtained; and obtaining a sorting port priority sequence of the to-be-sorted goods according to the shape parameters of the to-be-sorted goods and the stacking compactness index, and obtaining an optimal sorting port of the to-be-sorted goods according to the sorting priority of the to-be-sorted goods and the sorting port priority sequence. The invention aims to solve the problem of goods accumulation influenced by the sorting sequence in the sorting process of the power type narrow-band sorting machine, and the optimal sorting port of the to-be-sorted goods is obtained through intelligent decision.

The application belongs to the technical field of food, and particularly relates to an antioxidant solid beverage and a preparation method thereof. The antioxidant solid beverage is characterized by comprising the following components: polyphenol raw materials, collagen peptide, fructo-oligosaccharide, pyrroloquinoline quinone disodium salt, and fruit and vegetable powder as a flavoring agent added or not added. The addition of fructo-oligosaccharide can improve the preservation rate of polyphenol substances and fully exert the antioxidant effect. The application further provides a preparation method, which can ensure the mixing uniformity of trace, heat-sensitive and unstable raw materials in the solid beverage and effectively protect the activity of effective components in the product.

The application discloses a method for preparing electronic-grade insulating pulp from bamboo, and relates to the technical field of insulating pulp production and preparation, and comprises the following preparation steps: step A, collecting bamboo raw materials in Hunan area; step B, flaking operation, bamboo is flaked and cut into pieces in a bamboo processing factory; step C, water washing operation, bamboo pieces are washed to balance water content; step D, cooking operation, bamboo pieces are cooked by adopting sulfite process, and the yield of the crude pulp is controlled to be 40-50%; step E, screening operation; step F, beating operation; step G, sheeting operation and strength detection. The method for preparing electronic-grade insulating pulp from bamboo has certain regionalism by adopting locally planted bamboo in Hunan, the prepared electronic-grade insulating pulp reaches the superior standard, and the prepared electronic-grade insulating pulp has the quality index that the conductivity is less than 3 us / cm by adopting deionized water for washing in the whole process.

The utility model belongs to the field of mask substrates, and particularly relates to a recovery processing system of a mask substrate. Comprising a film stripping module, the film stripping module comprises a film stripping container and a clearing container, the clearing container is arranged at the rear end of the film stripping container, film stripping liquid is contained in the film stripping container, and clearing liquid is contained in the clearing container; and the drying module is arranged at the rear end of the film stripping module. The utility model provides a recovery processing system of a mask substrate, and aims to solve the problem of recovery of the mask substrate.

The application provides a micro-powder filling and micro-crystal fitting composite production line, which comprises a plurality of mechanical arms and wafer fitting equipment, a primary vibration powder supply device and a primary pressing device, and a powder secondary vibration powder supply pressing device; the mechanical arms are arranged between the primary vibration powder supply device and the primary pressing device, between the primary pressing device and the wafer fitting equipment, between the wafer fitting equipment and the secondary vibration powder supply device, and between the secondary vibration powder supply device and the secondary pressing device to link the feeding and discharging; the primary vibration powder supply device is provided with a first dust removal device, the primary pressing device is also provided with a first pressing dust removal mechanism, the powder secondary adding device is provided with a secondary dust removal mechanism, and the powder secondary pressing device is provided with a second pressing dust removal mechanism, so that surface dust removal can be performed in time after the powder is added and after the powder is pressed, and the overflowed powder can be avoided from being brought into the next station; and the relay operation of the plurality of mechanical arms replaces the traditional flow channel transmission.

The embodiment of the invention relates to the technical field of feeding machines, and provides a PLA degradation material cone double-feeding machine which comprises a feeding box, a hopper and a processing mechanism. The treatment mechanism comprises a dust suction hood, a first treatment box, a second treatment box, a synchronous belt, a treatment structure, a filter screen, a dust suction pipe and dust suction equipment; through the arrangement of a feeding box, a supporting seat, a dust suction cover, a first treatment box, a dust suction pipe and dust suction equipment, dust generated in a hopper can be extracted, the dust is treated through the first treatment box and a treatment structure, the position of a filter screen is adjusted, the treatment effect of the treatment structure is improved, workers and equipment can be effectively protected, and the service life of the workers is prolonged. According to the conical double-feeding machine, the filter screen can be cleaned under the action of gravity through the arranged treatment strips, cleaning scraping strips, moving pipes, sealing blocks, moving rods, anti-falling blocks and connecting springs, the service life of the treatment structure is prolonged, and the using effect of the conical double-feeding machine is improved.

The application provides a selective hydrogenation method, comprising the following steps: providing a hydrogenation catalyst, which is a carbon-coated nickel nanocomposite with sulfur-containing urea on the surface; contacting a hydrogenation substrate, hydrogen and the catalyst, and catalyzing the reaction under the condition of liquid-phase hydrogenation; the benzene ring of the hydrogenation substrate contains a nitro group and a carbon-carbon unsaturated bond simultaneously. When the benzene ring of the hydrogenation substrate contains a nitro group and a carbon-carbon unsaturated bond simultaneously, the hydrogenation method and the catalyst can hydrogenate the nitro group with high activity and high selectivity.

This invention provides a film winding body. The film winding body includes a paper core, adhesive tape disposed on the paper core, and a film wound around the paper core; the film is connected to the paper core by the adhesive tape, with one end of the film adhered to the tape forming an acute angle, and the area where the film and tape are adhered is triangular. The film winding body provided by this invention allows for easy separation of the film from the paper core by pulling, and the adhesive tape remains on the paper core, preventing paper scraps and adhesive tape from being introduced during automated packaging production.

This invention discloses a meteorological observation drone, belonging to the field of drone observation technology. It includes an airframe, an airborne meteorological station, and a cable deployment and retrieval cabin. The cable deployment and retrieval cabin is used to deploy and retrieve the observation cable, which has multiple profile detection nodes spaced along its axial direction. A counterweight is connected to the end of the cable, forming a three-dimensional detection array. This invention suppresses cable swaying through an active guidance and anti-sway mechanism, removes contaminants from the cable surface using a rotary cleaning mechanism, and can coordinate with distributed counterweight beads to generate vibration to enhance the cleaning effect. Its advantages include synchronous, high-precision, and stable detection of atmospheric vertical profiles, effectively overcoming the technical difficulties of inaccurate data, low efficiency, and poor environmental adaptability in traditional suspended detection methods, thus improving the reliability of the equipment and the accuracy of the detection data.

The utility model relates to the technical field of disc brakes, in particular to a dustproof and waterproof disc brake which comprises a shell and a coupler rotationally connected to the side wall of an inner cavity of the shell, a sealing bag ring is arranged on the surface of the coupler, and the sealing bag ring is also fixedly installed on the side wall of the inner cavity of the shell. Through the driving assembly, the two brake shoes can be driven to loosen the brake wheel, and meanwhile, the driving assembly can also fill the sealing bag ring with cooling liquid in the liquid storage tank, so that the sealing bag ring is expanded, a gap between the shell and the coupler can be further filled, and dust, water and the like are prevented from being brought in when the coupler rotates; meanwhile, new cooling liquid is filled into the sealing bag ring, the coupler can be cooled, the problem that overheating is caused in the high-speed rotating process of the coupler is avoided, the waterproof and dustproof performance of the brake is improved, meanwhile, the service life of the brake can be further prolonged, and the braking effect on corresponding equipment can be further improved.

The utility model relates to a continuous passivation pretreatment device for a fluorocarbon color-coated aluminum coil, which is applied to the field of fluorocarbon color-coated aluminum coil production and processing and comprises a treatment box, a plurality of mounting rods are fixedly connected to an inner cavity of the treatment box, auxiliary rollers are rotatably sleeved on the outer surfaces of the mounting rods, and water outlet pipes are fixedly connected to the left end and the right end of the treatment box. Movable notches are formed in the left end and the right end of the treatment box correspondingly, a partition plate is fixedly connected to the inner bottom wall of the treatment box, and a U-shaped mounting frame is fixedly connected to the left end of the partition plate, and when the color-coated aluminum coil is subjected to passivation treatment, an air knife is arranged to blow the washed color-coated aluminum coil, so that water and a small amount of impurities on the surface of the color-coated aluminum coil are blown off; and then the color-coated aluminum coil is dried and rapidly heated through the multiple infrared radiators, so that water on the surface of the color-coated aluminum coil is greatly reduced, the situation that a large amount of water is brought into a passivation solution by the washed color-coated aluminum coil is effectively avoided, and then the passivation uniformity is effectively improved.

The utility model provides an agricultural plastic film residue separating device which comprises a machine frame, a plastic film residue separating device, a plastic film residue separating device and a plastic film residue separating device. The screening device is arranged on the rack and is provided with a first discharge port for discharging screened large materials and a second discharge port for discharging screened small materials; and the secondary sorting assembly is arranged at the first discharging opening or connected and matched with the first discharging opening, and the large materials can be subjected to winnowing or color sorting so as to screen agricultural residual films in the large materials. According to the agricultural residual film separating device, large materials and agricultural films can be screened out through the screening device, the agricultural films are further selected out through the follow-up secondary winnowing assembly, large materials, small materials and the agricultural films are separated, and compared with existing separating equipment, the agricultural residual film separating device has a good agricultural film separating effect.

This utility model relates to the field of photovoltaic energy storage technology, and more particularly to an energy storage device based on photovoltaic power generation. The technical solution includes an energy storage cabinet and an energy storage battery pack. A heat-conducting backplate is fixed inside the energy storage cabinet near its rear surface. Several support plates are equidistantly fixed inside the energy storage cabinet. A heat-conducting pad is fixed to the upper surface of each support plate, and the rear surface of the heat-conducting pad is welded to the front surface of the heat-conducting backplate. Several heat-conducting partitions are equidistantly welded to the upper surface of each heat-conducting pad, and the rear surface of the partitions is welded to the front surface of the heat-conducting backplate. Several heat sinks are equidistantly welded to the rear surface of the heat-conducting backplate, and the heat sinks penetrate the rear surface of the energy storage cabinet. A heat dissipation cover is fixed to the rear surface of the energy storage cabinet. This utility model can release heat from inside the photovoltaic power generation energy storage cabinet in a timely manner through heat conduction, preventing outside air from entering the cabinet and bringing in dust, impurities, and moisture.

The utility model discloses a rocker switch for a high-power dust collector, which is characterized in that a dustproof linkage piece is clamped with a rocker button to form a first physical barrier to prevent dust from entering the rocker switch from a gap of the button, and a partition plate between a linkage inner cavity and a transmission outer cavity is provided with a boss part and an inclined table part to form a barrier type sealing structure. The boss part blocks large-particle dust, the inclined table part guides the dust to two sides, direct invasion paths are reduced, the dustproof structure does not sacrifice operation flexibility, when the seesaw button is pressed downwards, the linkage column drives the conductive assembly to be switched on and off through the coping assembly, quick response is ensured, meanwhile, dust is prevented from being brought into the interior in the operation process, and the service life of the seesaw button is prolonged. Moreover, the dustproof linkage member is directly connected with the rocker button through a clamping structure, and the hinge columns at the two sides of the dustproof linkage member cooperate with the hinge holes of the housing, thereby achieving the quick positioning, integrating the dustproof function into the internal structure of the switch, reducing the number of accessories, and reducing the assembly complexity.

This invention relates to a starch preparation device with an automatic rinsing function, belonging to the field of starch production technology. The device includes: a bubble washer, a screw feeder, a first mesh belt conveyor, a second mesh belt conveyor, a storage tank, and a high-pressure water washer. The screw feeder is installed at one end of the bubble washer. Both the first and second mesh belt conveyors are installed inside the bubble washer, with one end of the second mesh belt conveyor extending to the outside of the bubble washer. The storage tank is located below the second mesh belt conveyor. The chain conveyor and the perforated scum removal mechanism work together to circulate and filter out floating scum, covering the entire water surface of the bubble washer and solving the problem of poor scum removal efficiency in existing starch preparation devices with scum removal functions.

The application relates to the technical field of chemical equipment, in particular to a wiped film evaporator for chemical reaction, which comprises a heating cylinder, the upper end of the heating cylinder is fixedly connected with a connecting pipe, a fixed column is fixedly arranged in the middle of the inside of the heating cylinder, a rotating pipe is rotatably connected to the outside of the fixed column, the rotating pipe is rotatably connected to the inside of the heating cylinder, a plurality of fixed pipes are fixedly arranged on the rotating pipe, a fixed scraper is fixedly connected to one end of the fixed pipe, the fixed pipe and the fixed scraper are located in the inside of the heating cylinder, a first soft scraper is fixedly arranged at one end of the fixed scraper, the first soft scraper is tightly attached to the inner wall of the heating cylinder, and the first soft scraper is slidably connected with the inner wall of the heating cylinder. The device can impact the inside of the fixed scraper through the impact ball, so that the fixed scraper and the soft scraper can vibrate, and the material adhered to the soft scraper can be shaken off.

The cleaning machine comprises a main machine (1) and a sewage tank (3), the sewage tank (3) is installed on the main machine (1), the sewage tank (3) comprises a tank body (301) and a tank cover, the tank cover covers the open end of the tank body (301), and a sewage cavity is formed between the tank body (301) and the tank cover; a cavity is formed in the tank cover, and an air inlet (305) is formed in the wall of the cavity and communicated with the sewage cavity; a mounting groove (304) is formed in the bottom wall of the cavity, and the mounting groove (304) is communicated with the cavity; a filter (5) is arranged in the mounting groove (304), and an air outlet (306) is formed in the bottom of the mounting groove (304); when the cleaning machine works, gas in the sewage cavity enters the cavity from the gas inlet (305), is filtered by the filter (5) and then is discharged from the gas outlet (306). According to the cleaning machine, dust and particles can be effectively prevented from being brought into the motor by gas passing through the sewage tank, so that the service life of the motor is prolonged, and the service life of the cleaning machine is further prolonged.

The utility model relates to the technical field of negative pressure supply systems, and discloses a negative pressure supply device. Wherein the negative pressure supply device comprises a vacuum unit, a filter unit and a buffer unit, and the vacuum unit is used for enabling an energy consumption device communicated with an air inlet of the vacuum unit to have negative pressure; the filtering unit is arranged between the vacuum unit and the energy consumption device and comprises a first filter and a second filter, the second filter is communicated with an air inlet of the vacuum unit, the first filter is communicated with one end, far away from the vacuum unit, of the second filter, and the filtering aperture of the first filter is larger than that of the second filter; the buffer unit is communicated with the upstream of the air inlet of the vacuum unit and used for buffering the negative pressure provided by the vacuum unit. According to the utility model, the cleanliness of air entering the vacuum machine can be effectively improved; and meanwhile, the negative pressure generated by the vacuum unit is buffered.