57results about How to "Increase impact" patented technology

The application discloses a kind of automatic cleaning device for shield machine cutter, it is related to tunneling equipment technical field, including including shield machine main body and cutter head body, the cutter head body is arranged on the surface of shield machine main body, the side annular array of shield machine main body is close to cutter head body and is provided with several water pipe grooves, the inside of water pipe groove is all fixedly connected with water outlet cavity, the inside of shield machine main body is located on the side of water outlet cavity away from cutter head body and is provided with annular water storage chamber, the annular water storage chamber is used to store water.The application can flush cutter and cutter head in real time when shield machine is normally tunneling, just remove in time when sundries is just attached, block mud cake formation and muck jam from source, continuously keep the surface of cutter clean, avoid cutter jam and eccentric wear problem from root.

The invention belongs to the technical field of well drilling equipment, and discloses a thick-wall windowing milling cone which is used for windowing operation of old well casings. The thick-wall windowing milling cone is configured to extend into the casing pipe and windowing the side wall of the casing pipe. The thick-wall windowing milling cone comprises a connector, a drill bit and an eccentric drill bit. Wherein one end of the joint is connected to the driving mechanism; the drill bit is fixedly connected to the end, away from the driving mechanism, of the connector and is configured to cut and mill the side wall of the sleeve. The eccentric bit is eccentrically arranged on the outer end face of the body bit away from the connector. The eccentric drill bit is matched with the main drill bit, and after the eccentric drill bit breaks through the sleeve, due to the eccentric arrangement of the eccentric drill bit relative to the main drill bit, the amplitude of the main drill bit can be improved under the action of rotation and self gravity, so that the impact force of the main drill bit is indirectly improved, and the main drill bit can finish window opening operation more quickly.

The utility model discloses a filter device of circulating backwash, including filter casing, install a set of bearing seat in the inner chamber of filter casing upper end, bearing seat is sealed with a set of filter core rotation connection, and the rotation action can be realized to filter core through drive assembly, and cooperate transmission assembly and drive cleaning brush rotation, the utility model centrifugal force throws out high -speed water flow, and the impact force of impurity is greatly promoted, and the mechanical cleaning of cooperation cleaning brush, under double effect, can more efficiently remove strong viscosity, firmly attached contaminant and deep pore small impurity, and backwash efficiency improves obviously, and high -efficient backwash reduces backwash frequency and time, and water flow energy consumption is reduced, simultaneously, the filter core is because clean thoroughly, and the service life is extended, and the frequency of replacement is reduced, and the overall operation cost is reduced.

The utility model provides a rainwater pipeline desilting device, which belongs to the technical field of pipeline desilting and comprises a water pipe, an inlet head is arranged on the upper side of the water pipe, the inside of the inlet head is communicated with the water pipe, a plurality of spray heads are arranged on the surface of the inlet head, and a replacement head is further arranged on the inlet head. The high-pressure water jet pipeline desilting device solves the problems that when an existing high-pressure water jet pipeline desilting device is used, only one single water-drop-shaped head is provided, the existing high-pressure water jet pipeline desilting device is difficult to apply to different environments, and practicability is not high.

The invention belongs to the technical field of plant beverage processing, and particularly relates to a gingko, dendrobium officinale and ginseng plant beverage crushing, mixing and preparing device which comprises a mixing and preparing machine, a universal pulverizer, an ultrafine pulverizer, a freezing pulverizer and a high-pressure homogenizer, and the mixing and preparing machine comprises a material cavity, a feeding opening, a discharging opening and a stirring mechanism; the preparation method of the mixing preparation machine comprises the following preparation steps: S1, raw material pretreatment: selecting ginkgo leaves, fresh dendrobium officinale strips and ginseng rhizomes which are free of mildew and diseases and insect pests, cleaning the ginkgo leaves, drying the ginkgo leaves with hot air, removing fibrous roots from the fresh dendrobium officinale strips, cutting the fresh dendrobium officinale strips into long sections, peeling the ginseng rhizomes, and cutting the peeled ginseng rhizomes into long slices; s2, graded crushing is conducted, specifically, the pretreated ginkgo leaves are put into a universal pulverizer to be pulverized and then transferred into an ultrafine pulverizer to be further pulverized into fine particles, and the device solves the problems that when the ginkgo, dendrobium officinale and ginseng plant beverage is prepared through crushing and mixing at present, the mixing effect is poor, and the stability and taste of the beverage are directly affected.

The present application provides a holding mechanism that uses a Bernoulli pad to attract and hold a plate-shaped object without damaging the plate-shaped object. The holding mechanism has a Bernoulli pad that holds a plate-shaped object by the action of negative pressure generated by blowing air against the plate-shaped object, and has a hand portion to which the Bernoulli pad is attached, a sensor attached to the hand portion that detects when the plate-shaped object is held by the Bernoulli pad, a lateral movement restriction portion attached to the hand portion that restricts lateral movement of the plate-shaped object, a tube that connects an air source that supplies air to the Bernoulli pad to the Bernoulli pad, an adjustment valve attached to the tube that adjusts the flow rate of air supplied to the Bernoulli pad, and a control portion that controls the operation of the adjustment valve. The control portion gradually increases the flow rate of air supplied from the adjustment valve to the Bernoulli pad, and fixes the flow rate of air when the plate-shaped object is held by the Bernoulli pad by the action of negative pressure detected by the sensor.

The utility model discloses nursing flushing equipment for the urology department, and relates to the technical field of flushing equipment. The bladder irrigator comprises a bladder irrigator body, the bottom of the bladder irrigator body is fixedly connected with a shell rotating bearing, the outer portion of the shell rotating bearing is fixedly connected with an irrigating body shell, a shell lock catch hook is installed in the irrigating body shell, and the outer portion of the shell lock catch hook is movably connected with a hook inserting groove. A bladder irrigation cannula is movably sleeved with the bladder irrigator body, and a liquid conveying groove is formed in the bladder irrigation cannula. According to the utility model, the flusher dismounting shell is arranged, so that an operator can conveniently replace a new bladder flushing pipe for repeated use after using the bladder flushing pipe, and a shell lock catch hook mounted on the flusher dismounting shell is inserted into a hook insertion groove; therefore, the flusher detachable shell is fixed outside the bladder flusher main body to fix the bladder flushing cannula.

The application relates to a water and fertilizer integrated mixing and irrigation device and belongs to the technical field of irrigation devices, which comprises a main body, a plurality of supporting legs fixedly connected to the bottom of the main body, a water storage cavity arranged in the inside of the main body, a water inlet pipe arranged on one side of the top of the main body and communicated with the water storage cavity, a drainage pipe arranged on the bottom of one side of the main body and communicated with the water storage cavity, a second valve body arranged on the drainage pipe, a storage cavity arranged on one side of the inside of the main body, a water conveying mechanism arranged on the top of the main body and capable of conveying water in the water storage cavity into the storage cavity. The water pump electric device can realize the mixing of the fertilizer and water and the irrigation work, the device cost is saved, the operation is simpler, the two different modes can be freely switched by controlling the opening of the spraying pipe, the complicated switching operation is not needed, the rapid mixing effect can be realized by utilizing the circulating flow of the water, and the mixing effect is good.

This invention relates to a filter assembly, fabric processing equipment, and control method in the field of fabric processing equipment technology. The filter assembly includes: a filter screen; and a flow guide, which is disposed on the filter screen and has a water inlet corresponding to the filter surface of the filter screen. Multiple flow guide ribs are arranged in the water inlet along a predetermined direction, with the tips of the ribs gradually decreasing and / or gradually increasing along the arrangement direction. When water flows onto the flow guide, the height difference between the multiple flow guide ribs creates a local water pressure gradient, directing part of the water flow to the surface of the filter screen. This increases the water flow velocity in the filter screen area, enhancing the impact force of the water flow on the lint on the filter screen. Through the multi-stage flow path formed by the multiple flow guide ribs, the entire area of ​​the filter screen is covered, achieving comprehensive self-cleaning of the filter screen.

The utility model discloses rapid deicing equipment after nuclear magnetic resonance quenching, and relates to the field of nuclear magnetic resonance structure maintenance equipment, the rapid deicing equipment after nuclear magnetic resonance quenching comprises a heating piece and an accelerating piece, the heating piece is provided with a gas inlet and a gas outlet, gas enters the heating piece through the gas inlet, the heating piece heats the gas, and the accelerating piece accelerates the heating of the gas. The heated gas is discharged through the gas outlet; the heating part is connected with the gas outlet through a pipeline, the accelerating part is connected with the gas outlet through a pipeline, the accelerating part is communicated with the gas outlet through a pipeline, the gas is accelerated through the accelerating part, and'ice blocks' in the nuclear magnetic resonance equipment can be effectively removed through the heating part and the accelerating part.

This utility model relates to the field of automation and control technology, and discloses a rotary drilling bit, including a fixed frame. A hydraulic cylinder is fixedly connected to the inner wall of the fixed frame, and a movable frame is fixedly connected to the output end of the hydraulic cylinder. A connecting rod is fixedly connected inside the movable frame, and a first connecting piece is rotatably connected to the outer wall of the connecting rod. A movable rod is fixedly connected inside the first connecting piece, and a second connecting piece is rotatably connected to the outer wall of the movable rod. A fixed rod is rotatably connected inside the second connecting piece, and a limit component is provided on the outer wall of the movable frame. In this utility model, the hydraulic cylinder drives the movable frame, which in turn drives the connecting rod. The connecting rod drives the first connecting piece, which in turn drives the movable rod. The movable rod drives the second connecting piece to rotate on the outer wall of the fixed rod, thereby increasing the impact force on the rock and the cutting depth, and avoiding increased drill bit wear or drilling stagnation caused by hard rock resistance.

This invention discloses a method for producing low-temperature resistant plastic granules for pipes, comprising the following steps: Step 1, cleaning the waste material, and then adding the raw material to a high-speed mixer to obtain a premix; Step 2, adding the premix to a twin-screw extruder and heating it to a molten state for plasticization. This invention relates to the field of plastic granule preparation technology. In this method for producing low-temperature resistant plastic granules for pipes, wastewater is discharged into a circulation tank, driving a turbulence impeller to rotate. While the wastewater is filtered through a grading filter plate, a scraper removes dirt from the surface of the grading filter plate, preventing clogging. Furthermore, the drainage area of ​​the drainage channel can be increased by adjusting the water flow, increasing the water pressure and the impact force on the turbulence impeller, thus increasing the thrust on the scraper and improving the cleaning effect.

This invention discloses a method for preparing N-doped β"-AlON solid electrolyte powder, which includes the following steps: (1) Slurry preparation: weigh anhydrous ethanol and dispersant, add the dispersant to anhydrous ethanol and stir evenly to obtain a mixed solution, then weigh aluminum source powder, lithium source powder, sodium source powder and nitrogen source powder to obtain a mixed powder, add the mixed powder to the mixed solution and stir thoroughly until the mixture is evenly mixed to obtain a mixed slurry; (2) Grinding to prepare precursor slurry: grind the mixed slurry thoroughly to obtain a precursor slurry; (3) Spray drying: spray dry the wet-ground precursor slurry to obtain spray-dried powder; (4) Calcination: calcine the spray-dried powder in a nitrogen atmosphere, and keep warm after calcination to obtain N-doped β"-AlON powder.

The utility model relates to a broadband wireless transmission box adapted to a severe environment, which comprises a shell and a shell cover, thread mounting cylinders are arranged at four corners in the shell, an internal heat dissipation groove is arranged in the shell, a plurality of module mounting screw holes are arranged in the shell, and the shell cover is arranged in the shell. Mounting plates are fixedly connected to the front side face and the rear side face of the shell, mounting holes are formed in the surfaces of the mounting plates, external heat dissipation grooves are formed in the surface of the shell cover, a modular heat dissipation area is arranged in the middle of the shell cover, and threaded holes are formed in the four corners of the shell cover. The broadband wireless transmission box adapting to the severe environment is mainly suitable for long-distance, high-throughput and anti-interference data transmission scenes, modular integration and brand-new shell design are carried out on the internal structure design, the system stability, the heat dissipation capability and the installation convenience are improved through structure optimization, and the broadband wireless transmission box adapting to the severe environment is suitable for popularization and application. And the device is practical.

The utility model belongs to the technical field of ship protection equipment, and particularly relates to a corrosion-resistant rubber fender which comprises a mounting plate, and a mounting assembly is arranged on the periphery of the mounting plate. The installation assembly comprises installation grooves, the multiple installation grooves are evenly formed in the periphery of the installation plate, bolts are connected to the periphery of the installation plate in a threaded mode, the installation plate is sleeved with gaskets in an abutting mode, the bolts are sleeved with the gaskets, and the installation grooves are in a U shape. Due to the fact that the peripheries of the protective pad, the fender body and the bolts are all coated with the anti-corrosion coatings, corrosion of external corrosive media can be effectively resisted. And the corrosion-resistant buffer layer in the protection plate is made of a special corrosion-resistant material, so that the overall corrosion resistance of the fender is further enhanced, the service life of the rubber fender in a severe corrosion environment is greatly prolonged, the high cost caused by frequent replacement of the fender due to corrosion is reduced, and long-term safety protection of ship berthing is ensured.

The invention relates to the technical field of chemical pigment machinery, and particularly discloses an opposite-rolling laminated device for reducing the viscosity of fireproof paints.The opposite-rolling laminated device comprises a supporting seat, a recycling box is fixedly connected to the top of the supporting seat, an opposite-rolling box is fixedly connected to the top of the recycling box, and the bottom of the opposite-rolling box communicates with the recycling box; the device comprises a rolling box, one side of the rolling box is fixedly connected with a collecting box, the top of the rolling box is fixedly connected with a stirring device, the rolling box penetrates through and is fixedly connected with a discharging mechanism, and the inner wall of the rolling box is fixedly connected with a first rolling device, a second rolling device and a third rolling device. The movable end of the electric telescopic rod penetrates through the top of the opposite-rolling box and is fixedly connected with a spraying mechanism, the opposite-rolling stacked device for reducing the viscosity of the fireproof coating is provided with a stirring device, so that auxiliaries and raw materials can be fully stirred and mixed, and the viscosity of the coating is preliminarily reduced; therefore, waste of raw materials and influence of the raw materials on next rolling operation can be avoided.

This utility model provides an automatic dust removal device for a pulse dust collector, belonging to the technical field of automatic dust removal devices. The automatic dust removal device includes: a dust collector cylinder, a filter bag assembly, a pulse jet pipe, a compressed air tank, a mechanical triggering mechanism, and a dust discharge mechanism. The dust collector cylinder has a cylindrical structure, with an air inlet at the top and a dust outlet at the bottom. The filter bag assembly is located inside the dust collector cylinder, comprising a filter bag support frame and a filter bag body, with the filter bag body fitted over the filter bag support frame. The pulse jet pipe is located at the top of the dust collector cylinder, with its nozzle aligned with the upper opening of the filter bag assembly. The compressed air tank is connected to the pulse jet pipe via a high-pressure air pipe. The mechanical triggering mechanism includes a trigger rod and a differential pressure diaphragm. The dust discharge mechanism is located at the bottom of the dust collector cylinder, solving the technical problem in the prior art where inaccurate control of the dust removal timing leads to unsatisfactory dust removal results.

The utility model belongs to the technical field of crankshaft cleaning tools, and discloses a crankshaft oil hole cleaning tool for crankshaft machining, which comprises an operation table, a supporting plate is arranged above the operation table, a linear motor is mounted on the lower end face of the supporting plate, a bearing plate is mounted at the output end of the linear motor, and a crankshaft oil hole is formed in the bearing plate. A bearing plate is arranged on the second mounting plate, a crankshaft body is arranged below the bearing plate, the crankshaft body is sleeved with a cleaning assembly, annular plates are arranged at the two ends of the crankshaft body, and a plurality of first threaded grooves are formed in the two annular plates. The linear motor drives the bearing plate to move left and right, so that the crankshaft body moves left and right while rotating, the cleaning fluid can form turbulent flow on the surface of the crankshaft body, the impact force of the cleaning fluid is enhanced, and oil stains, metal chips and other impurities attached to the surface of the crankshaft body can be removed easily.

The utility model relates to a kind of spray arm and cleaning machine for cleaning machine, including the body extending along length direction, the body is provided with the flow channel of inside hollow, the body bottom wall is arched to form slag-scraping structure in the flow channel at near end portion, and slag-scraping structure includes the slag-scraping flow channel that gradually inclines downwards from the body end portion to the center, and the lower end of slag-scraping flow channel is formed with the body bottom wall and is inclined to form the slag-scraping port of the width greater than slag-scraping flow channel cooperation.The part of body bottom is arched to form slag-scraping structure in the flow channel, i. e. the concave structure of slag-scraping structure, avoid the interference of other structures under spray arm, it is favorable to improve space utilization;Slag-scraping structure includes the inclined extension of slag-scraping flow channel, and the structure makes slag-scraping water column more concentrated, it is favorable to improve the impact of slag-scraping water column, improve slag-scraping effect;The lower end of slag-scraping flow channel is formed with the body bottom wall and is inclined, to form the slag-scraping port of the width greater than slag-scraping flow channel, can reduce the obstruction to slag-scraping water column, further improve slag-scraping effect.

This utility model discloses a hammering mechanism for processing bait cakes, belonging to the field of bait cake processing technology. The hammering mechanism includes a base and a bracket mounted on the base, and further includes a disc rotatably connected to the base. Multiple sets of springs are arranged equidistantly in a ring on the disc. A mounting plate is fixedly connected to the disc, and the ends of the springs are respectively connected to the disc and the mounting plate. A feeding bowl for dispensing material is fixedly mounted on the mounting plate. When the bait cake material moves to the detour section, it flips downwards, creating a flipped edge effect. This achieves the effect of flipping the edges of the bait cake material during hammering, preventing it from sticking to the inner wall of the feeding bowl, while ensuring that every side and part of the bait cake receives uniform hammering force. This avoids areas with uneven hardness and residual granular texture, reduces the need for manual flipping, and increases the safety of bait cake production.

The invention relates to the technical field of separation, and relates to chelate resin for removing calcium and magnesium ions in water as well as a preparation method and application of the chelate resin. The chelate resin for removing calcium and magnesium ions in water provided by the invention is composed of the matrix resin and the modified group, and the introduction of the modified group improves the adsorption capacity and stability of the matrix resin to the calcium and magnesium ions, and can respectively reduce the concentrations of calcium ions and magnesium ions in high-salt sewage to 0.5 ppm or below. And the capacity is still kept at 85% or above after 15 times of recycling, so that the sewage treatment cost is greatly reduced, and the method has a wide application prospect.

The utility model discloses a transmitter flushing ring, relates to the technical field of industrial instrument cleaning, and aims to solve the problems that a traditional flushing ring is narrow in flushing range, easy to block and inconvenient to maintain. The flushing ring comprises an annular cavity, a flushing short pipe and a blow-off pipe, and is characterized in that one end of the flushing short pipe extends into the cavity and is provided with a rotary flushing head, and the other end of the flushing short pipe is connected with an external pipe and an anti-blocking pipe joint through threads. The rotary flushing head is of a circular-truncated-cone-shaped structure, is provided with an end water outlet hole and an inclined side water outlet hole and is driven to rotate through the counter-acting force of water flow, and multi-angle spraying is formed. A filter screen is arranged in the anti-blocking pipe joint, so that impurities can be intercepted and back flushing can be supported; and the backwashing pipe is additionally arranged on the side wall of the external pipe to realize disassembly-free filter screen cleaning. Through rotary flushing, modular anti-blocking design and multi-pipeline cooperation, the flushing coverage, anti-blocking performance and maintenance efficiency are remarkably improved, and the anti-blocking device is suitable for long-term stable operation of the transmitter under high-pressure and high-pollution working conditions.

This invention provides a novel anti-clogging device for filter media in concealed drainage pipes. The anti-clogging device comprises at least one unit and includes a crushing component. The crushing component includes a support frame installed inside the drainage pipe, on which a crushing blade is rotatably mounted. The crushing blade rotates under the impact of water flow. This invention utilizes the impact force of the water pressure within the drainage pipe to rotate the crushing blade, thereby crushing and guiding the silt, debris, and filter media particles in the wastewater out of the drain. This significantly improves drainage efficiency, reduces the frequency of drainage pipe blockage, and enhances the drainage capacity and service life of the drainage pipe.

This utility model discloses a double-layer folding mobile phone protective case, relating to the field of mobile phone peripheral technology. The double-layer folding mobile phone protective case includes a shell and a central axis protective component. The shell includes a base plate and a surrounding barrier around the base plate, the surrounding barrier having an opening. The central axis protective component is rotatably mounted on the base plate to close the opening. The surrounding barrier and the central axis protective component form a cavity for accommodating a folded mobile phone. The central axis protective component is used to open when the mobile phone is unfolded, allowing half of the mobile phone to rotate out of the cavity, and to accommodate the mobile phone in the cavity when it is folded. The depth of the cavity is greater than or equal to the thickness of the folded mobile phone. The technical solution provided by this utility model improves the protective effect of folding mobile phones.

The application discloses an automatic backwashing sewage filter for water supply and drainage and relates to the technical field of sewage filters. The automatic backwashing sewage filter comprises support legs, support shells fixedly connected to the support legs, top covers fixedly connected to the support shells, first sliding plates sealingly and slidingly connected to lower portions of the support shells, connecting shells rotationally connected to the first sliding plates, first filter members installed in the connecting shells, connecting rings slidingly connected to the fixed shells, second filter members installed in the connecting rings and first push rods fixedly connected between the support shells and the first sliding plates. The automatic backwashing sewage filter adjusts the positions of the first sliding plates and the first filter members by means of the two first push rods, so that sewage can pass through the second filter members when the filtering efficiency of the first filter members is reduced, the pressure of the sewage in the first filter members and the second filter members is reduced, and the first filter members and the second filter members are prevented from being deformed due to excessively high sewage pressure in the first filter members and the second filter members.

This invention belongs to the field of textile technology, specifically a down-collecting device and processing method for down processing. It includes a down-filling hopper, an adjusting unit at one end of which contains a down-washing unit, and a pressure-relief unit within the down-washing unit. The invention uses an electric telescopic rod to move a filter plate inside the down-filling hopper away from the three-phase motor until the down inside the hopper is compressed to a designated area on one end of the electronic scale. Simultaneously, a crank connecting rod rotates, and a pressure-relief plate, under the control of a panel, rotates at a certain angle within the filter plate. This allows for real-time control of the alignment between the filter holes in the pressure-relief plate and the mesh of the filter plate. During this process, a pressure-relief valve extracts gas from inside the down-filling hopper to the outside, ensuring a vacuum in the down-retention area, eliminating the influence of air buoyancy, reducing airflow interference, effectively avoiding static electricity, improving the accuracy of the electronic scale's weight measurement, and ultimately improving product quality control precision.

The utility model discloses an ultrasonic heat meter, including ultrasonic heat meter main part, the lower extreme electric connection of ultrasonic heat meter main part has the connecting wire, the front end fixed connection of ultrasonic heat meter main part has data display panel and control adjustment button, data display panel is located the upper end of control adjustment button, the outer wall swing joint of ultrasonic heat meter main part has the protection anticollision mechanism, the rear end fixed connection of ultrasonic heat meter main part has rear connecting pipe, the outer wall of rear connecting pipe both ends all is set up and is connected thread groove. The utility model discloses an ultrasonic heat meter, the protection anticollision mechanism that is set up with the protection and the anticollision effect of ultrasonic heat meter main part outside is strengthened, prevents daily use ultrasonic heat meter main part, has caused the knock or collision, has caused the damage to ultrasonic heat meter main part, has reduced the impact and knock of ultrasonic heat meter main part.

The utility model belongs to the technical field of packaging equipment, and particularly relates to a fast carton sealing neon lamp packaging device which comprises a carton sealing workbench body, two conveying belts used for moving cartons are arranged at the top of the carton sealing workbench body, and blowing mechanisms are arranged on the carton sealing workbench body and the conveying belts. The blowing mechanism comprises an air pump arranged on one side of the carton sealing workbench body, the air pump arranged on the blowing mechanism is communicated with the high-pressure air spraying head, and when the downward bending angle of the carton folding cover is too large, high-pressure air sprayed out of the high-pressure air spraying head blows the carton folding cover to rotate upwards. Hollow mounting seats are arranged at the tops of the two conveying belts; the neon lamp packaging and sealing device can ensure that a carton can be timely matched with a side covering rod, a front cover folding piece and a rear cover folding piece on the automatic cover folding mechanism, reduces the problems of carton clamping, carton sealing failure and the like in the carton sealing process, enables the neon lamp packaging and sealing process to be smoother and more efficient, and can improve the carton sealing efficiency compared with a traditional device.

The utility model provides a drainage anti-blocking device of a carbon washing tower, and relates to the technical field of carbon washing towers. The device comprises a filter cartridge, a shade, filter holes, a water guide plate and a supporting piece, the filter cartridge is used for installing and covering a water outlet of the carbon washing tower, a supporting piece is installed at the end, away from the water outlet, of the filter cartridge, a shade is installed on the supporting piece, the end, away from the water outlet, of the filter cartridge is covered with the shade, filter holes are evenly distributed in the side wall of the filter cartridge, and a spiral water guide plate is distributed on the inner wall of the filter cartridge. Black water enters the filter cartridge from side filter holes of the filter cartridge, so that accumulation of solid impurities on the drain pipe and a valve on the drain pipe is reduced; black water is forced to enter the filter cartridge from the space between the shade and the filter cartridge, and large solid impurities cannot enter the filter cartridge; as the black water forms a water flow vortex, the impact force is enhanced, slightly large solid impurities are crushed after being impacted, the impact force of the black water is enhanced, fine impurities are taken away from the drainage pipe, and the problem of blockage is solved.

This utility model discloses a gift box with video demonstration function, relating to the field of gift packaging box structure. It includes a box body, a lid, and a rotating connecting device. The box body has a receiving cavity for placing gifts, and an image acquisition device is installed within the receiving cavity. The lid is rotatably connected to the box body and has a video playback device installed on it. The lid cooperates with the box body to close and open the receiving cavity. The rotating connecting device is located at the rotatable connection between the box body and the lid. The image acquisition device connects to and disconnects from the video playback device through the rotating connecting device, allowing the contents of the gift box to be automatically played when the lid rotates.