27results about How to "Increase gravity" patented technology

The utility model discloses an anti-storm anti-toppling buoy which comprises a buoy body and a balance assembly, and the top of the buoy body is of a cavity structure. The balance assembly comprises a balancing weight, a fixing rod, a hinge rod and a bearing plate. The bearing plate is located in a cavity of the buoy body and is in sliding connection with the buoy body, the multiple balancing weights are located in the anti-collision support and are in sliding connection with the anti-collision support, one end of the fixing rod is fixed to the balancing weights, the other end of the fixing rod is hinged to one end of the hinge rod, and the other end of the hinge rod is hinged to the bearing plate; through the arrangement of the balance assembly, seawater is poured into the bearing plate of the buoy body through stormy waves, the gravity of the seawater is utilized to drive the bearing plate to move downwards, the balancing weight is driven to move towards the outer side of the buoy body, the gravity of the outer side of the buoy is increased, and the outer side part of the buoy can be supported by more buoyancy; the impact of large storm waves on the inner side of the buoy is reduced, so that the whole buoy is kept stable, and the buoy is balanced.

The invention discloses a surface processing laser alloying repair device for rough and medium rolling mill rollers, and relates to the technical field of laser alloying repair processing. A driving long box is installed on the top of two mounting base plates, a driving motor is installed on one end of the driving long box, a driving screw is connected to the end of the driving motor, a driving mounting seat is sleeved on the outer side of the driving screw, and a bottom circulation box is installed on the top surface of the driving mounting seat. According to the invention, different impurities in the same repair stage can enter different filter bottom boxes for collection, thereby effectively improving the convenience of the repair equipment in handling impurities generated in the adsorption process. At the same time, through the characteristics of the elastic rubber edges and corners that deform inwards after colliding with the rolling mill support frame, the edges and corners of the collecting tray have a higher liquid difference during the discharge of the mixed liquid, so that the precipitated impurities gathered at the corners of the collecting tray can smoothly flow to the corresponding isolation valve, thereby effectively improving the fluency of impurity collection in the collecting tray.

The invention discloses forging circle die inner wall detection equipment, which comprises a forging circle die and die detection equipment, and is characterized in that the die detection equipment comprises a cart structure, a laser adjusting and positioning device, die two-side fixing devices, a die bottom supporting and positioning device and a die upper part pressing and adjusting device; wherein the die upper part pressing and adjusting device comprises a gravity self-adjusting clamping structure and a die calibration display structure, and can detect whether the installation of the forging circle die meets the installation standard or not. The invention belongs to the technical field of mold detection equipment. In order to guarantee normal operation of the round forging die, the invention provides the round forging die inner wall detection equipment which is used for spatially detecting the installed round forging die so as to detect data obtained by the round forging die and adjust the position of the round forging die.

The invention discloses an antibacterial fabric for underwear and a preparation method of the antibacterial fabric, and relates to the technical field of textile fabrics. According to the invention, 2-(chloromethyl) 1, 3-butadiene and dodecyl dimethyl tertiary amine are used as reaction raw materials to prepare quaternary ammonium salt, and then the quaternary ammonium salt and vinyl-terminated silicone oil are subjected to a polymerization reaction to generate an organosilicon quaternary ammonium salt antibacterial agent, so that bacterial adhesion can be effectively prevented, and the antibacterial performance of the fabric is enhanced; ethylene glycol and 2, 5-dimercapto terephthalic acid are condensed to obtain sulfydryl-containing polyester fibers, ethylene glycol disodium salt is added to obtain modified polyester fibers, the antibacterial performance of the fabric is improved, meanwhile, the moisture absorption performance of the fabric is improved, and the fabric is easy to dye; soaking the modified polyester fiber into the organosilicon quaternary ammonium salt antibacterial agent mixed solution, performing water treatment, drying, and weaving to obtain the antibacterial fabric for underwear. The prepared antibacterial fabric for underwear has excellent antibacterial, moisture-absorbing and easy-to-dye effects.

The invention relates to the technical field of port machinery, and provides a container spreader for a gantry crane, which comprises a main frame, a hoisting frame, a connecting assembly, a position adjusting assembly, a cross beam, a hoisting assembly and a connecting assembly, the hoisting frame is fixedly mounted at the bottom of the main frame, the connecting assembly is mounted on the main frame, and the position adjusting assembly is mounted on the connecting assembly. The two cross beams are symmetrically and fixedly installed at the bottom of the hoisting frame, the hoisting assemblies are arranged on the two sides of the hoisting frame, the two hoisting assemblies are symmetrically arranged, the hoisting assemblies are installed at the ends of the cross beams, and the connecting assemblies are installed on the two hoisting assemblies. The problems that the lifting appliance and the container are damaged and the safety and the efficiency of lifting are influenced due to the fact that the container is likely to shake, shake and the like in the lifting process are solved.

The utility model discloses a scum collecting device for a sewage treatment tank, which comprises a triangular bracket mounted above a wall body at one end of the sewage treatment tank, and further comprises an L-shaped bracket mounted on one side below the triangular bracket and positioned outside the sewage treatment tank; the collection inclined baffle is mounted on the inclined surface of the triangular bracket, and the lower end of the collection inclined baffle is inserted into the sewage treatment tank; and the circulating scraping and collecting mechanism is arranged above the sewage treatment tank and is positioned above the collecting inclined baffle plate. According to the utility model, scum can be quickly scraped away from the upper part of sewage by utilizing the reciprocating scraping of the floating scraping box above the sewage, meanwhile, the sewage cannot be greatly shaken, the sewage is prevented from overflowing from the sewage treatment tank, and meanwhile, the scum can be quickly collected by utilizing the sliding fit of the floating scraping box and the collecting inclined baffle, so that the scum fishing efficiency is further improved; and the scum can be conveniently and quickly collected.

The utility model discloses a pedal type columnar mud sampler with a foldable pedal, which belongs to the technical field of environmental monitoring and governance, and comprises a mud sampler body, and a lifting frame is arranged at the top of the mud sampler. The L-shaped connecting frame and the supporting frame are limited and fixed through screws, then the plug pin is pulled, the first pedal and the second pedal are unfolded so that a large pedal area can be formed, then the plug pin can be loosened, the plug pin is bounced into the plug pin groove through elastic connection formed by the plug pin and the spring, and the first pedal and the second pedal are limited. The bottom mud collecting pipe and the supporting frame are arranged on the bottom mud collecting pipe, the folding phenomenon in the using process of the bottom mud collecting pipe and the supporting frame is avoided, the purpose that the bottom mud collecting pipe is full of bottom mud by increasing the gravity in a foot stepping mode when an operator encounters hard bottom mud is achieved, the using effect is improved, and the phenomena that feet crack or the supporting frame is bent are avoided.

The utility model is suitable for the technical field of isolation devices, and provides a road isolation device for urban road traffic engineering. The road isolation device for urban road traffic engineering comprises a combined isolation box and an isolation plate, a green plant planting box used for beautifying urban roads is arranged in the isolation box, and a recycling hopper, a recycling pipe, a water tank and the isolation box are assembled, so that the road isolation device can recycle a certain amount of water in rainy weather; according to the green plant planting box, water resources can be saved when green plants planted in the isolation box are watered, a screen is arranged in the isolation box, water flowing out of water leakage holes in the bottom of the green plant planting box can be filtered through the screen, then separation between the water and impurities such as soil is achieved, and the filtered water flows into the water tank, so that water resources are saved. And after quantitative water is recycled in the water tank, the overall gravity of the water tank is increased, and then the stability of the isolation box placed on the urban traffic road is improved.

The invention discloses a high-power high-precision antenna cover environmental control system, which relates to the field of communication technology, including a communication station, wherein a high-precision antenna body is arranged on the top of the communication station. When the invention is used, when the amount of snow accumulation increases, the elastic rubber pad will be depressed downward and fall into the inside of the conical cover, and the laser rangefinder will be started. When the distance data matches the set expected range, the PLC controller will control the fan and the electric heating wire to start, and the heat will be transferred to the elastic rubber pad through the heating tube to melt the snow. Then, the first solenoid valve and the second electric exhaust valve are opened, so that part of the gas in the connecting pipe enters the gas injection pipe, and then enters the inside of the fixed cylinder, generating thrust on the first piston, and lifting the push rod and the arc-shaped top cover, thereby lifting the depressed elastic rubber pad, presenting an upward convex state, and discharging the snow water, thereby achieving the effect of cleaning the snow on the top of the antenna cover.

The utility model relates to the technical field of water conservancy flood prevention, in particular to a protection structure and a water conservancy flood prevention box, which are characterized in that an inserting groove is formed in the left side surface of a protection plate, an inserting rod is arranged on the right side of the protection plate, and a triangular stabilizing plate is arranged on the rear surface of the protection plate; the flood prevention box and the protection plate are fixedly connected through a powerful supporting frame, a buffering rubber pad is arranged in a gap of the powerful supporting frame, a base is arranged on the front faces of the flood prevention box and the protection plate, a buffering rod is inserted into the base, the other end of the buffering rod is fixedly connected with a buffering plate, and a water absorption expansion layer is arranged on the surface of the buffering plate. The flood prevention box has the beneficial effects that the water absorption expansion layer can expand during flood flushing, so that the buffer effect on the buffer plate is achieved, the buffer rod and the spring can drive the buffer plate to reduce impact of flood on the flood prevention box, and the strong supporting frame and the buffer rubber pad improve the buffering and supporting capacity of the flood prevention box; and the triangular stabilizing plate can increase the overall gravity of the equipment, so that the stability of the equipment is enhanced.

This utility model relates to the field of aerator support technology and discloses a pool aerator support with a telescopic structure, including a telescopic column, a buoyancy-driven telescopic component on the surface of the telescopic column, and a wind-resistant stabilizing component near the bottom of the surface of the telescopic column. The buoyancy-driven telescopic component includes a vertical sleeve, which is fixedly connected to the surface of the telescopic column near the top. This pool aerator support with a telescopic structure, by incorporating a buoyancy-driven telescopic component and a hollow cylindrical buoyancy chamber filled with a small amount of air to enhance buoyancy, allows it to float upwards under buoyancy, pushing the telescopic rod to slide upwards along the vertical sleeve. When the sleeve slides, the aerator inside slides along with it to avoid being submerged. When a lowering height is needed, a corresponding number of extension counterweights can be installed to increase gravity, causing the telescopic rod to slide down and the aerator to automatically lower to a suitable height, maintaining optimal aeration efficiency.

The hardware product container convenient to take and place comprises a supporting frame, two sets of vertical rods are fixed to the top of the supporting frame, and five sets of container frames capable of containing hardware products are arranged in the two sets of vertical rods. A set of fixed motors are fixed to the rear sides of a set of vertical rods, the outer sides of the two ends of a bidirectional threaded rod are in threaded connection with the outer sides of two sets of connecting blocks correspondingly, one set of connecting blocks are fixed to the outer side of the main supporting rod, and the other set of connecting blocks are fixed to one side of the auxiliary supporting rod. According to the hardware product container convenient to take and place, a fixed motor is arranged, a two-way threaded rod can be driven to rotate through starting of the fixed motor, a main supporting rod and a secondary supporting rod can rotate mutually, rolling wheels can roll in a lower guiding frame and an upper guiding frame, and it can be guaranteed that the height of the container frame is adjusted; and the activated carbon filter plate on the top can be conveniently replaced, and the hardware can be conveniently taken and treated.

The invention relates to the technical field of carton recovery, and discloses a crushing device for carton recovery processing, which comprises a crushing cabin, a dust removal mechanism is arranged in the middle of the inner side of the crushing cabin, the dust removal mechanism comprises a dust filtration cabin, and the dust filtration cabin is located in the middle of the crushing cabin and is fixedly connected with the middle of the crushing cabin; a second material pushing rod is arranged at the left end of the inner side of the dust filtering cabin, and a first material pushing rod is arranged at the right end of the inner side of the dust filtering cabin. The paper scrap smashing device has the beneficial effects that the distance between the smashing cutters is small, the carton smashing effect can be improved, dust in smashed carton scraps can be conveniently removed, the cleanliness of the smashed paper scraps can be improved, fiber scraps generated by paper scrap smashing can be conveniently subjected to steam humidification, and the paper scrap smashing effect can be improved. And the gravity of the fiber chippings is increased to prevent the fiber chippings from flying around under the blowing of external wind power, so that the crushed chippings are conveniently and uniformly discharged, and the situation that the discharged chippings are accumulated to influence the operation efficiency of the next procedure is favorably prevented.

The application belongs to the technical field of building construction, and particularly relates to a precast beam hoisting and transporting device, which comprises a hoisting beam, a sling, a first half sliding sleeve, a second half sliding sleeve and a reset spring. Before the precast beam is hoisted and transported, the reset spring at both ends of the inner cavity is pushed to make the first half sliding sleeve and the second half sliding sleeve be at the central position of the inner cavity, so that the length of both ends of the sling is always consistent. During the hoisting and transporting of the precast beam, when the precast beam is slightly inclined, the sling drives the first half sliding sleeve and the second half sliding sleeve to slide along the inner cavity to the side, the reset spring at the side is compressed, and the reset spring at the other side is stretched. The elastic force generated by the reset springs at both sides can make the first half sliding sleeve and the second half sliding sleeve reset to the central position of the inner cavity, drive the height of both ends of the sling to return to the horizontal state, thereby adjusting and restoring the precast beam to the horizontal state, and then the stability and safety of the hoisting and transporting of the precast beam are improved.

The invention relates to the technical field of building measurement, in particular to an on-site measurement device for public building design and a measurement method thereof.The on-site measurement device comprises an adapting mechanism and an adjusting mechanism, the adjusting mechanism is arranged on the inner side of the adapting mechanism, and the adapting mechanism comprises a positioning assembly, an adapting assembly, an energy supply assembly and a weighting assembly; the adapting assembly is arranged on the inner side of the positioning assembly, the energy supply assembly is arranged at the bottom of the adapting assembly, the weighting assembly is arranged on the surface of the energy supply assembly, the adjusting mechanism comprises a transmission assembly, a limiting assembly, a movable assembly and a hydraulic assembly, and the transmission assembly is arranged on the surface of the positioning assembly. The limiting assembly is arranged on the inner side of the transmission assembly. According to the field measurement device for public building design and the measurement method thereof provided by the invention, the device is provided with a gradient-adaptive fixing structure, so that the device can quickly adapt to the gradient and keep the state of being horizontal with the ground, and the flexibility of the laser range finder during field measurement is improved.

The utility model discloses a kiln feeding noise reduction structure, which relates to the technical field of kiln feeding and comprises wheels and a moving frame. A lifting part is fixedly connected above the moving frame, a feeding groove is fixedly connected to the upper end of the lifting part, and a buffering part is arranged at the end close to an opening of the feeding groove; a material pushing component is fixedly arranged at the closed end of the feeding groove, and the material pushing component can push a workpiece to move on the feeding groove. A metal workpiece is pushed to move through the material pushing component, when the metal workpiece is pushed to the opening of the feeding groove, the metal workpiece can fall onto the buffering component, the buffering component buffers a metal block, the speed of the metal workpiece entering the kiln is low, and the metal block is prevented from falling off. Therefore, the impact force of the metal workpieces on the interior of the kiln and other workpieces is reduced, noise generated during impact is reduced, and the workpieces can be prevented from being damaged by impact between the metal workpieces through the buffering parts.

The utility model discloses a building curtain wall fixing frame, and relates to the technical field of fixing frames, the building curtain wall fixing frame comprises supporting legs, the tops of the supporting legs are fixedly connected with a bottom plate, the top of the bottom plate is fixedly connected with a vertical plate, the side face of the vertical plate is provided with a clamping and fixing device, the clamping and fixing device comprises a motor, and the motor is connected with the bottom plate. By means of mutual cooperation of the motor, the reciprocating lead screw, the threaded sleeves, the clamping plates and other components in the clamping and fixing equipment, the motor rotates forwards to drive the two-way lead screw to rotate forwards, the two-way lead screw rotates forwards to drive the two threaded sleeves to move relatively, and the two-way lead screw rotates forwards to drive the two threaded sleeves to move forwards. The two threaded sleeves do relative motion to drive the two clamping plates to do relative motion, so that the curtain wall placed in the middle can be clamped and fixed, the fixity and safety of the curtain wall are ensured, and the stable state of the curtain wall can be effectively kept even under the condition that wind power is large.

The application discloses a planting disc conveying trolley and a planting disc conveying system, and belongs to the technical field of conveying equipment. The planting disc conveying trolley comprises a trolley body, the trolley body comprises a base, a first side plate, a second side plate and a third side plate, wherein the first side plate, the second side plate and the third side plate are perpendicularly fixed on the base and surround to form a bearing space capable of accommodating at least one planting disc; at least two supporting parts are arranged on the base along the length direction of the trolley body, and are used for supporting the planting disc, so that a gap is formed between the bottom of the planting disc and the base; the middle part of the third side plate is opened, so that the side of the base towards the opening protrudes and extends to form an integrated connecting part, at least one slot-shaped hollow opening is formed in the vertical direction of the base, and the connecting hole at the bottom of the slot-shaped hollow opening can be connected with a driving assembly.

The utility model belongs to the technical field of neckerchief production, and particularly relates to a cutting device for neckerchief production, which comprises a shearing machine main body, a first sliding rail is mounted in the middle of the shearing machine main body; the middle of the first sliding rail is slidably connected with a tool body. The bottom of the first sliding rail is fixedly connected with a fixing plate. The bottom of the fixing plate is fixedly connected with a storage box; a liquid inlet groove is formed in the top of the storage box; the hard sponge capable of smearing lubricating oil to the middle of the cutter body is matched, so that the smoothness of the middle of the cutter body can be improved, the problem of low follow-up cloth shearing precision due to high surface temperature after long-time use of the cutter body is solved, and the service life of the cutter body in the use process is prolonged; and meanwhile, when the cutter main body coated with the lubricating oil shears the scarf cloth subsequently, part of cut cotton dust can be adhered to the middle part of the cutter main body, and the problem that a large amount of dust is raised when the cutter main body works is solved.

The application belongs to the technical field of Spar type floating wind turbine installation features, and is especially a multi-set Spar type floating wind turbine overall transportation and installation integrated ship and construction method, which comprises a traditional wharf, a U-shaped wharf and a double-body installation barge, is suitable for overall transportation and installation of multi-set Spar type floating wind turbines, and the U-shaped wharf is two parallel rectangular overhanging devices built along the outer edge of the traditional wharf, the two overhanging devices are combined with the traditional wharf to be similar to the letter U, and the U-shaped wharf comprises a first wharf 21 and a second wharf 22; compared with the traditional Spar type wind turbine installation, the application can perform overall installation on the land wharf, and the installation process is high in safety degree; the application does not need large hoisting equipment, and can realize simultaneous overall transportation and installation of multiple wind turbines, thereby saving assembly fund cost and time cost; the wind turbine foundation has large gravity, the wind turbine head has small gravity, and adjacent wind turbines are arranged in opposite directions, so that the double-body installation barge is subjected to more uniform force; the application adopts the double-body ship structure, is good in stability, and increases transportation and installation safety.

This application relates to a method and system for removing iron from electrode paste raw materials after crushing. The method utilizes a material conveyor belt to transport residual anodes at fixed intervals, passing them below the iron remover body to reduce the "magnetic curtain effect." The height difference between the leading edge of the iron remover body and the material pile is adjusted based on the thickness of the material pile before it enters the magnetic field range of the iron remover body. This fully utilizes the attraction of the magnetic field on material piles of any thickness, effectively preventing the desired material from being mistakenly screened out when the material pile thickness is higher than the bottom plane of the iron remover body. The gradually decreasing thickness of the material pile is obtained sequentially along the material pile's movement path. The height difference between the trailing edge of the iron remover body and the material pile is adjusted based on multiple thickness values. This ensures that the attraction of the iron remover body to the fine iron-containing impurities buried in the lower layer of the material pile by materials of normal particle size increases progressively. This allows the horizontal component of the inclined magnetic field to overcome part of the resistance from the downward pressure of the material, improving the screening rate of small and medium-sized iron-containing impurity blocks pressed by the material.

The invention discloses an unmanned transportation forklift based on radar, a camera and infrared rays, and particularly relates to the field of unmanned transportation forklifts.The unmanned transportation forklift comprises a main body bin, a control motor is fixedly installed at the top end of the main body bin, and a rotating holder and a camera protection device installed on the outer surface of the top end of the rotating holder are installed at the top end of the control motor; and a miniature high-definition camera is fixedly mounted on the outer surface of the front end of the camera protection device. According to the automatic forklift, under different external influence factors, the center position of the tray hole can be predicted more accurately, rapidly and efficiently, corresponding cooperation is carried out, and rapid cargo transportation is achieved. Meanwhile, an automatic driving system is arranged in the system in a matched mode, and after an external instruction of goods transportation is received, a route can be automatically planned to reach a designated position to work. The labor cost is greatly reduced, and meanwhile the working efficiency of unmanned warehouse logistics is improved.

The utility model discloses a multifunctional oil storage tank oil product sampling device which comprises an installation shell, a storage assembly is installed at the bottom of the installation shell, the storage assembly comprises a storage shell, the storage shell is fixed below the installation shell, an installation column is installed on the inner wall of the top of the storage shell, an installation groove is formed in the bottom end of the installation column, and the installation column is installed in the installation groove. Limiting pads are symmetrically mounted on the inner wall of the mounting groove, a closing cover is mounted at the bottom of the storage shell in a clamping manner, a sampling pipe is mounted at the top of the storage shell in a penetrating manner, and a sampling head is mounted at the bottom end of the sampling pipe. According to the oil sampling device, oil enters the sampling pipe through the sampling head to be extracted, the sampling pipe can be coiled in the storage shell after being not used, the sampling head is plugged into the mounting groove, the sampling head cannot fall out of the mounting groove through the limiting pad, and then the bottom of the storage shell is closed through the closing cover; the sampling tube can be folded when not in use, so that the size of the sampling device is reduced.

The invention discloses a kitchen waste crushing and grinding treatment equipment, which belongs to the technical field of kitchen waste treatment. In order to solve the problem that the operator needs to start the equipment once every time after pouring garbage into the equipment, or directly keep the equipment on for crushing and grinding, but the former of these treatment methods consumes manpower and the latter does not save energy, the invention comprises a treatment shell and an oil-liquid separation box connected and fixedly installed on the bottom surface of the treatment shell, a leak-proof odor cover is fixedly installed on the middle of the top surface of the treatment shell, and a collecting box is installed in the inner cavity of the lower end of the treatment shell, a crushing and grinding assembly is installed in the collecting box, and blocking separation plates are respectively installed on the inner walls of the two ends of the upper end of the inner cavity of the treatment shell. The invention has an ingenious structural arrangement, and utilizes the gravity change when the kitchen waste is accumulated to complete the automatic crushing and grinding of the kitchen waste after a certain amount of accumulation, which not only saves manpower, but also effectively saves energy and is convenient to use.

The utility model relates to an unpowered horizontal box supplementing device, which belongs to the technical field of assembly line equipment, and comprises a blanking mechanism, a spring and a support turnover assembly, the top of the blanking mechanism is provided with a feeding mechanism, and the support turnover assembly comprises a bottom plate, a turnover roller, a support frame, a baffle plate, a mounting plate, a protective frame, a vertical plate and a stop lever. The device has the beneficial effects that the supporting and overturning assembly is arranged, when the device is used, the box bodies are conveyed to the mounting plate through the feeding mechanism, the mounting plate slightly inclines and rotates under the gravity action of the box bodies, then the stop lever stops the next group of box bodies, and materials are filled into the box bodies through the discharging mechanism; the gravity of the whole box body is increased, so that the mounting plate is inclined and overturned, when the inclination angle of the mounting plate is rotated to the inlet of the discharging mechanism, the box body slides into the discharging mechanism for discharging, the bearing gravity of the mounting plate is reduced, and the mounting plate can return to the original position.

The invention discloses an allopurinol desalting and evaporating device and a desalting and evaporating method thereof, belongs to the technical field of desalting and evaporating, and provides the following scheme: a motor drives a first bevel gear and a lower bevel gear ring to rotate, and a lower annular plate rotates, so that a connecting disc can drive a heat exchange pipe to rotate; a first bevel gear is further in transmission with an upper bevel gear ring, an adjusting cylinder and a roller rod are driven to rotate through an upper circular ring plate, the roller rod can extrude a convex ring and a material guide disc to shake, and therefore the heat exchange pipe is heated evenly; a second spring and a fourth spring are matched to enable the heat exchange pipe to shake and vibrate, in this way, the uniform heating performance of the allopurinol solvent in the heat exchange pipe can be further improved, and after entering the heat exchange pipe, the allopurinol solvent can spirally flow downwards along the inner wall of the heat exchange pipe through a spiral blade of a spiral shaft; in this way, the allopurinol solvent is kept to flow down uniformly, so that the sintering phenomenon is avoided.

The utility model discloses a fixing device for carpet cleaning, which belongs to the technical field of carpets and comprises a support frame, an extrusion plate and a water tank are respectively arranged in the support frame, the water tank is inserted into the middle of the support frame, and positioning pins penetrating through the end of the support frame are fixed at the ends of two sides of the extrusion plate. Spring grooves are symmetrically fixed to the ends of the two sides of the supporting frame, pull rods penetrate through the middles of the spring grooves, limiting blocks penetrating through one side of the water tank are fixed to the tail ends of the pull rods, and second springs abutting between the surfaces of the limiting blocks and the inner walls of the spring grooves are wound around the surfaces of the pull rods. An operator adds liquid into the water tank, so that the gravity of the supporting frame of the water tank is increased, the extrusion force of the supporting frame on the carpet through the extrusion plate is increased, the stability of extruding the carpet is improved, meanwhile, the extrusion plate is convenient to rotate, and the extrusion plate is fixed by inserting a positioning pin into a positioning groove, so that the extrusion plate is prevented from rotating randomly; and the use safety of the extrusion plate is improved.