188results about How to "Extended use time" patented technology

The invention discloses a gas forklift, which comprise a forklift body and also comprises a gas tank, wherein the gas tank is arranged on a rear seat of the forklift body through a fixed support; the fixed support comprises a support frame and clamp rings; the clamp rings are formed by hinging two arc-shaped clamp arms; the end parts of one arc-shaped clamp arm is provided with a clamp splice; the clamp splice is provided with a through hole; the end part of the other arc-shaped clamp arms is hinged with an insertion; and each insertion is provided with an insertion rod which passes through the through hole and is locked by a nut. By adopting the structure, the gas forklift disclosed by the invention has the following advantages that 1, as the gas tank is installed on the rear seat of the forklift, the service time of the gas of the forklift can be prolonged, frequent gas filling is avoided, and the working efficiency is increased; 2, meanwhile, the gas tank is convenient in replacement, so that operation troubles brought by opening the rear seat of the forklift when gas filling is performed are avoided; and 3, the two arc-shaped clamp arms can be conveniently connected or loosened, therefore, not only is the gas tank fixed but also the gas tank can be conveniently replaced.

The utility model discloses a portable air purifier, which relates to the technical field of air purification and comprises a purifier top seat, the top of the purifier top seat is fixedly connected with a support, the bottom of the purifier top seat is provided with a plurality of filter screen cylinders, and the bottoms of the filter screen cylinders are in threaded connection with a base. The clamping seat at the bottom of the top seat of the purifier can be directly assembled with the threaded seat on the base in a threaded mode, at the moment, the overall size becomes very small, carrying is convenient, when the purifier needs to be used, after the top seat and the base of the purifier are disassembled in a threaded mode, the number of the filter screen cylinders can be taken out according to needs, and the filter screen cylinders are assembled; after the multiple filter screen cylinders are spliced, the filtering area of the folding filter screen is increased, meanwhile, the filter screen cylinders are convenient to replace, and a stable triangular state is formed by the telescopic rod and one corner of the base and the table top for supporting; the device can purify air and adjust the angle at the same time to achieve the effect of blowing and cooling as a desktop fan in hot weather.

The utility model discloses a mixing device for cement processing, and belongs to the technical field of mixing devices. The stirring device comprises a stirring container, a connecting block is rotatably arranged in an inner cavity of the stirring container, two cleaning mechanisms are arranged on the outer wall of the connecting block, each cleaning mechanism comprises a fixing rod and a connecting rod, one end of each fixing rod is fixed to the connecting block, a rectangular groove is formed in each fixing rod, and first screw holes are formed in the two ends of the outer wall of each fixing rod. The number of the first screw holes is multiple, the multiple first screw holes communicate with the rectangular groove, a cleaning brush is fixed to the connecting rod, and the top of the connecting rod penetrates into the rectangular groove and then is fixed through a bolt. Through the fixing rod, the rectangular groove, the first screw hole, the connecting rod and the cleaning brush, when the end of the cleaning brush is abraded, the position of the cleaning brush can be adjusted in time, other intact parts of the cleaning brush continue to play a role through flexible adjustment, the service life of the cleaning brush is prolonged, the overall replacement frequency is reduced, and the purchase cost of the cleaning brush is reduced.

The invention is suitable for the technical field of materials, and discloses silica gel and a preparation method thereof, and a silica gel product and a preparation method thereof. Wherein the silica gel comprises a first component and a second component, the first component comprises a base material, a reinforcing agent, a modified filler, titanium dioxide and a vulcanizing agent, and the second component comprises a base material, a reinforcing agent, a modified filler, titanium dioxide, a cross-linking agent and a polymerization inhibitor. The silica gel provided by the invention not only has better mechanical properties, but also has a small friction coefficient, when the silica gel is in contact with skin, the adhesion feeling is low, the smooth effect is good, and the smooth feeling and the skin-friendly property are improved. Moreover, two components, namely the first component and the second component, are arranged, the first component and the second component are stored separately, the material is easy to store and stable in performance, the service life of the product can be prolonged, in addition, the material preparation and forming process is simple, the vulcanization time is short, and the production efficiency is greatly improved.

The utility model relates to the technical field of resonator wafer processing accessories, in particular to a wafer positioning plate with information codes. According to the utility model, the information code is arranged on the ceramic chip, the ceramic chip is fixedly connected in the positioning groove, and the upper surface of the ceramic chip is lower than the notch of the positioning groove, so that the information code is effectively prevented from being directly exposed, the damage risk caused by external friction, corrosion and other factors is reduced, and the service life of the information code is obviously prolonged; and the long-term readability of the information is ensured.

The utility model discloses a kind of electric drive assembly high-pressure connector anti-loosening structure, it is related to high-pressure connector technical field, including connector male end and reinforcing assembly, the connector male end rear side is engaged and connected with connector female end, the reinforcing assembly is set to connector female end surface, and reinforcing assembly includes connecting groove, reinforcing groove, connecting protrusion, reinforcing protrusion, clamping groove, sealing groove, clamping strip, outer sealing frame, elastic sealing strip and magnetic attraction connecting layer, the connecting groove is set on connector female end upside, and connector female end upper surface is provided with reinforcing groove. The electric drive assembly high-pressure connector anti-loosening structure, by reinforcing assembly, so that the device can be inserted to the high-pressure connector Multiple reinforcement, can effectively prevent the male end and female end of connector from loosening, by protection component, so that the device uses multilayer protection mechanism, can greatly improve its own sealing and protective property, so that it is not easy to damage, to prolong its service time.

This utility model relates to the field of warning equipment technology, specifically a mobile multifunctional intelligent warning device. It includes a base, a main pole mounted on top of the base, a control box on the main pole, a warning panel, a monitoring camera, and a photovoltaic panel. The bottom of the base has a moving component and a foot-operated brake. The moving component includes a rear steering wheel and a front moving wheel, the front moving wheel being connected by an axle. The foot-operated brake drives the brake plate to limit the brake wheel by pressing an L-shaped pedal, and is fixed by a positioning pin inserted into a positioning hole. The photovoltaic panel supplies power to a battery. The control box controls the warning panel to display warning information and the monitoring camera to collect environmental data. This device solves the problems of inconvenient movement and unstable fixation in existing warning devices, achieving convenient movement, intelligent warning, and remote monitoring.

The application discloses a method for treating hydrogen sulfide in oil wells, which comprises the following steps: (1) screening of test oil reservoir; (2) preparation of specific virulent SRB phage stock solution; (3) enrichment of specific virulent SRB phage; (4) determination of optimal titer of specific virulent SRB phage solution; (5) selection of phage fusion bactericide; (6) determination of optimal intervention point of bactericide; (7) field test and effect evaluation. The application has the following advantages: (1) wide adaptability, simple method and good operability; (2) strong pertinence; (3) phage bactericidal action can prevent the generation of bacterial drug resistance and can prolong the use time of bactericide; (4) the cost is reduced by more than 50% compared with the prior art; meanwhile, the damage of bactericide toxicity to the formation is reduced, and the method is economic and environment-friendly.

The utility model discloses a kind of toys that can be twisted in multiple directions, belong to children's toy technical field, its technical key points are: including toy body, by the first movable piece and the second movable piece of multiple spliced combination being set, operability and strong interesting, user can according to own idea the splicing of first movable piece and second movable piece at different angles, in order to realize the modeling or action effect that oneself wants, user will constantly think how to splice, how to rotate, this invisibly exercises their spatial imagination and logical thinking ability, to significantly stimulate the creativity and exploratory spirit of child, in addition this multi-directional twist feature can also bring continuous surprise to user, due to the flexibility of 360 ° rotation, even if same splicing modeling, when rotating first movable piece and second movable piece can also produce different visual effects, improve the overall play experience, with the advantages that it is convenient to twist in multiple directions and interesting high.

The invention belongs to the technical field of metal heat treatment and surface treatment, and particularly relates to long-life rapid quenching oil and a preparation method thereof.The long-life rapid quenching oil comprises, by volume, 85-95 parts of industrial white oil, 5-10 parts of a cooling accelerant, 1-2 parts of a cleaning agent and 0.5-1 part of a composite antioxidant, the composite antioxidant comprises the following components: a phenolic antioxidant and an amine antioxidant, and the volume ratio of the phenolic antioxidant to the amine antioxidant is (1.5: 1)-(3: 1). By adding the composite antioxidant, the oxidation resistance of the quenching oil can be greatly improved, the quenching hardness of a workpiece is prevented from reaching the standard, the service life of the quenching oil is prolonged, the production cost is reduced, meanwhile, the phenol antioxidant is used for providing hydrogen atoms for the amine antioxidant losing the hydrogen atoms, and the service time of the organic amine antioxidant is effectively prolonged.

The utility model discloses a kind of leather surface cleaning devices for automotive interior leather processing, belong to cleaning device technical field.The utility model includes cleaning tank, and the side wall of cleaning tank is fixed with pretreatment mechanism, and the top of cleaning tank is fixed with extrusion mechanism, and pretreatment mechanism includes the mounting bracket fixed in the side wall of cleaning tank, and the both sides plate between mounting bracket is fixed with cleaning plate, and the top of mounting bracket is fixed with first cylinder, and the telescopic end of first cylinder is fixed with another cleaning plate after passing through the top plate of mounting bracket, and two cleaning plates are oppositely arranged.The utility model is through the structural design of mounting bracket, cleaning plate, dust suction pipe and first cylinder, when using, the leather that is washed into cleaning tank can be pretreated, more leather surface dust, loose chippings etc. Are removed, so that the total amount of pollutant entering cleaning tank is reduced, the effective use time of cleaning fluid is improved, water changing frequency is reduced, and cleaning agent and water resource consumption are reduced.

The utility model discloses an extensible double-ring information system, which comprises a first link, a second link and a server, the first link comprises a first monitor, the second link comprises a second monitor, the tail end of the first monitor in the first link is provided with a plurality of first monitors, and the tail end of the second monitor is provided with a plurality of second monitors. A plurality of second monitors are arranged at the tail ends of the second monitors in the second link, the first link and the second link form a double-ring layout, a setting and reporting mechanism of the wireless local area devices is provided, and the problems of high complexity and high cost during arrangement and repair of wired devices are solved. The wireless device does not need cables such as optical fibers or copper wires as signal transmission media, and only needs power lines. Since most devices are internally provided with power supply allocation circuits, the reasonable power supply voltage drop or voltage fluctuation of the power line still belongs to an acceptable range, and the adaptation of the wireless device is greatly improved.

The invention relates to the field of intelligent operation and maintenance of power equipment, in particular to a transformer maintenance-free respirator control method integrating temperature, humidity and pressure monitoring and electric heating regeneration and a storage medium. The method comprises the following steps: firstly, deploying a sensor in the respirator, collecting humidity and internal temperature and pressure data of a drying agent, and obtaining accurate data after moving average filtering and temperature compensation; and the control module is combined with the data, a humidity threshold value dynamically adjusted along with the load rate of the transformer and a regeneration period to trigger the regeneration system to start. During regeneration, the electric heating piece heats the drying agent, the fan adjusts the rotating speed according to the real-time temperature and humidity to discharge steam, meanwhile, the moisture absorption capacity recovery rate is corrected by combining aging of the drying agent, and starting and stopping or temperature adjusting delay are conducted according to the standard condition. The process data is uploaded to the operation and maintenance cloud platform through the LoRa module encrypted by AES-128, and the platform analyzes the trend through weighted linear regression and gives an alarm; and operation and maintenance personnel optimize parameters according to the parameters and regurgitate a judgment link. Related programs are stored in the storage medium and can be executed by the processor to achieve the method, and support is provided for maintenance-free of the respirator.

The invention discloses an oil-immersed transformer convenient to replace insulating oil, and relates to the technical field of oil-immersed transformers, the oil-immersed transformer comprises a transformer main body, cooling fins are arranged on the peripheral surface of the transformer main body, an oil conservator is fixedly connected to one side of the upper surface of the transformer main body, and an air bag is arranged in the oil conservator; the end, extending out of the conservator through the second guide pipe, of the air bag communicates with a respirator. When water absorption particles in one drying cavity absorb water to be saturated or agglomerate and the like, the water absorption box rotates in the connecting shell, the next drying cavity communicates with the second guide pipe, the second connecting pipe, the air bag and the external environment, the working time of the respirator can be prolonged through the arrangement of the multiple drying cavities, and the service life of the respirator is prolonged. And when air holes of one drying cavity are blocked, the next standby drying cavity still exists, and it is guaranteed that adjustment of the height of the oil level in the oil tank is not affected.

The utility model relates to the technical field of yarn drawing frames, and discloses a guide frame for a yarn drawing frame, which comprises a main body device and a feeding roller body, a variable frequency motor is mounted on the front side of the feeding roller body, a compression roller is mounted at the right end of the main body device, and the feeding roller body is mounted at the top of the main body device. The main body device comprises a plug connector, a spiral spring, a guide assembly and a second rotating roller body, the plug connector is connected to the top of the guide assembly in an inserted mode, the second rotating roller body is movably connected to the top of the guide assembly, the spiral spring is installed in the second rotating roller body, and the limiting plate is movably connected to the top of the guide assembly. According to the guide frame for the yarn drawing frame, the connecting block, the metal block, the limiting inserting block and the first rotating roller body are arranged, the metal block and the connecting block are fixed in an inserted mode, the first rotating roller body can be clamped and fixed through the metal block and the connecting block, the first rotating roller body and the metal disc can be conveniently detached and replaced, and the first rotating roller body is rapidly and conveniently replaced.

The utility model relates to RGV trolley technical field, and disclose a height adjustable RGV trolley transport device, including mobile device and carrying vehicle body, the top surface bolted connection of carrying vehicle body has the transport frame, and the both ends fixedly connected with the metal sheet of carrying vehicle body top, and carrying vehicle body installs in the top of mobile device, and mobile device includes metal cross board, and the top surface welding of metal cross board has lifting assembly, and the bottom surface welding of lifting assembly has the mobile wheel of two ends before and after. The height adjustable RGV trolley transport device, through being provided with rail guide car body, metal cross board, L type metal sheet and limit insert block, limit insert block is inserted into the connecting piece and metal shell, and the rail guide car body and L type metal sheet are inserted and fixed between, and the L type metal sheet and electric push rod are conveniently disassembled and replaced, make the maintenance of electric push rod more convenient, do not need to spend a lot of time to disassemble electric push rod, protect the safety of electric push rod.

This utility model discloses a bridge-type lifting edge cutting machine for building stone, relating to the field of edge cutting machines. It includes a base, with a first sliding groove in the center of the upper surface of the base, and second sliding grooves on both sides of the first sliding groove on the upper surface of the base. A moving component is slidably engaged inside the first sliding groove. A shatterproof support plate is fixedly installed at one end of the base, and a blade retraction groove is formed on the shatterproof support plate. By setting the shatterproof support plate, during use, the edge of the stone and the main body of the stone are respectively located on both sides of the blade retraction groove. When the cutting blade cuts, the shatterproof support plate provides reliable support to the edge of the stone, preventing insufficient support and edge breakage. Furthermore, the cut scraps slide down through the material retraction groove, achieving automatic cleaning. This not only protects the integrity of the stone during processing but also automatically cleans up waste, preventing accumulation. The structure is simple and the effect is good.

The application discloses a dust removal device for electrical engineering and automation. The device comprises a dust suction box and a dust suction component, which are communicated through a dust suction pipe; the dust suction component comprises a shell, a center pipe is arranged in the shell, a second fan driven by a second motor and a center gear are arranged in the center pipe, the center gear is drivingly connected with a reciprocating screw rod through a transmission gear and a transmission component, a reciprocating block is engaged on the reciprocating screw rod, and the reciprocating block is connected with a sponge pad through a connecting rod. The dust suction effect is enhanced through the double-fan structure, the sponge pad is driven to reciprocate through the reciprocating screw rod mechanism, the sponge pad is deformed regularly in the wiping process through cooperation of the elastic arc-shaped plate and the inclined moving groove, effective removal of the adhesive dirt and self-cleaning of the sponge pad are realized; meanwhile, the device can be selected to open or close the wiping function, and can be selected to wipe in a dry or wet manner, so that the cleaning effect and applicability of the dust removal device are remarkably improved.

The utility model relates to the technical field of crystal resonators, and discloses a stable quartz crystal resonator, which comprises a shell structure, the shell structure comprises a shell, the top of the shell is provided with a mounting hole, the top of the shell is provided with a cover plate, and the shell is internally provided with a quartz crystal resonator structure; the quartz crystal resonator structure comprises a quartz crystal wafer, electrodes are arranged on the two sides of the quartz crystal wafer, pins are connected to the outer portions of the electrodes, a base is arranged on the outer portions of the pins in a sleeving mode, and fixing assemblies are installed on the two sides of the outer portion of the base. The fixing assembly comprises a fixing frame, mounting bases are connected to the two sides of the exterior of the fixing frame, and a circular groove and a fixing block are mounted in the fixing frame. According to the utility model, the case is movably connected, so that the internal components are convenient to mount and dismount, and the fixing components are tightly connected with the internal components, so that the effect of stable oscillation is ensured.

The utility model relates to frequency converter production technical field, and disclose a kind of paint spraying device for frequency converter production, including spraying device and bearing base, the right side surface of bearing base is welded with support frame body, the bottom end surface of bearing base is installed in spraying device, the spraying device includes stirring tank body, the bottom bolt connection of stirring tank body has extraction pump, the left side surface of extraction pump is installed with spraying nozzle, the inside of stirring tank body is installed with limit component, support column is installed in the front and rear ends of limit component.The paint spraying device for frequency converter production is provided with connecting column, clamping block, fastening screw rod and support column, connecting column and support column are connected with clamping block by fastening screw rod, the position of clamping block is determined, clamping block clamps and fixes stirring tank body, keeps the stability of stirring tank body, and stirring tank body is conveniently disassembled and replaced, so that the disassembly and maintenance of stirring tank body are more rapid and convenient.

The present technology belongs to the technical field of coal mining equipment, and specifically discloses an underground coal mining ventilation and dust removal equipment, which comprises two air pipes, three reinforcing rods connected between the air pipes, two fans respectively embedded in the air pipes, a base plate assembled on the air pipes and close to the upper end, a protection box buckled on the base plate, a buckle cover movably assembled on the protection box, two through pipes embedded on the buckle cover, first elastic rubber hoses respectively assembled on the lower ends of the through pipes, second elastic rubber hoses respectively assembled on the upper ends of the air pipes, servo motors respectively assembled on the base plate and located on the two sides of the air pipes, jacks respectively assembled on the driving ends of the servo motors, and assembling discs respectively assembled on the jacks. The underground coal mining ventilation and dust removal equipment automatically replaces the return filtering screen through gas flow sensing, senses the running state of the ventilation system in real time, protects the life safety of underground workers, has a long service life, and does not require workers to frequently handle the dust filtering screen, and is convenient to use.

A filtering device for a heating pipeline comprises a water inlet end and a water outlet end, the water inlet end and the water outlet end are communicated and connected, a filtering cylinder is arranged in the water inlet end, an annular deep groove is formed in the side wall of the water inlet end, the filtering cylinder is inserted and matched in the annular deep groove, a threaded hole is formed in the filtering cylinder, a screw is installed in the threaded hole in a threaded fit mode, and the screw is rotationally installed at the water inlet end. And the water outlet extends to the outside of the water inlet end. The filter cartridge is simple in structure and ingenious in conception, the filter cartridge is filtered by using the longer filter cartridge, when one part of the filter screen is blocked and water flow is unsmooth, the screw drives the filter cartridge to move out of the next section from the annular deep groove, the filter cartridge can normally work again, the filter cartridge does not need to be cleaned by disassembling a pipeline, the service life of the filter cartridge is prolonged, and the cleaning period is shortened. The method can meet actual requirements and is suitable for popularization.

The utility model relates to the technical field of ship instruments, and discloses a marine flow channel dual-channel redundancy instrument with a correction function, which comprises a connecting part, and a control valve with three liquid outlet ends is arranged at the end part of the connecting part. Two liquid outlet ends of the control valve are connected with instrument pipelines which are opposite in liquid outlet inclination angle direction and identical in liquid outlet inclination angle, the ends of the instrument pipelines are communicated with detection instruments, and the liquid outlet ends of the two detection instruments are connected with a confluence three-way valve. The last liquid outlet end of the control valve is arranged between the two instrument pipelines and communicated with a correction channel, the correction channel is a three-way pipeline, the liquid outlet end of the correction channel is communicated with the connecting point positions of the instrument pipelines and the detection instrument, and a pressure detection component extending to the outside of the correction channel is arranged in the correction channel. The marine flow channel dual-channel redundancy instrument with the correction function has the advantages that the overall service life is prolonged through redundancy setting, and the aging condition of the instrument can be conveniently detected.

This utility model relates to the field of raw coal screening technology and discloses a raw coal screening and filtering device, including a filtering device and a bin. A metal block is fixedly connected to the top of the bin. The filtering device is installed on the top of the bin and includes a metal ring, inverted teeth, a limiting component, and a plug-in plate. The metal ring is installed on the top of the limiting component, the plug-in plate is fixedly connected to the inner wall surface of the metal ring, and the inverted teeth are fixedly connected to the top of the plug-in plate. This raw coal screening and filtering device, by setting up a metal ring, inverted teeth, a metal frame, and a grate, allows the inverted teeth and grate to filter the poured raw coal. The inverted teeth can scrape away impurities from the poured raw coal, effectively preventing impurities from entering the raw coal bin. A nut rotates on the surface of a threaded rod, and a helical spring pushes the metal ring upward, causing the metal ring to detach from the metal frame, facilitating disassembly and replacement of the metal ring.

The utility model relates to filter separation device technical field, concretely relates to a kind of particulate matter high-efficiency filtration separation device in gas turbine flue gas, including filter box, the top end fixedly connected with fixed shell of filter box, and the one end fixedly connected with motor of fixed shell, and the output shaft of motor is fixedly sleeved with belt group to fixed shell inside, and the both ends of belt group are fixedly sleeved with cam group, and the top of cam group is provided with first connecting plate, and the both ends of first connecting plate are fixedly connected with first connecting rod, and first connecting rod slidingly penetrates to the fixed connection with connecting frame in filter box, and the bottom end fixedly connected with cloth bag of connecting frame.Compared with prior art, the present application avoids the flue gas to concentrate in the middle of cloth bag during filtration and separation, which affects the filtration and separation effect of flue gas and improves the filtration and separation efficiency of particulate matter in flue gas.

The utility model relates to the field of bus connecting structure design, and discloses an all-insulation bus connecting structure of a switch cabinet, which comprises a connecting pipe, a first bus main body and an auxiliary connector, the connecting end of the connecting pipe is provided with an insulation protective sleeve, the connecting pipe is provided with a main connector close to the insulation protective sleeve, and the main connector is connected with the first bus main body. A first bus fixing frame is arranged on the end face of the end, close to the insulating protective sleeve, of the connecting pipe, a first bus body is arranged on the first bus fixing frame, the connecting pipe is movably connected with the auxiliary connector, a second protective wire fixing sleeve is arranged at the other end of the auxiliary connector, and a second protective wire fixing sleeve is arranged at the other end of the second protective wire fixing sleeve. The second protection wire fixing sleeve is internally provided with a second bus main body, the connection with the auxiliary connector is fixed through the connecting pipe, the connection between the first bus main body and the second bus main body is established, and the stable transmission of electric signals of the switch cabinet is ensured. According to the utility model, connection control of the two groups of bus main bodies is realized, and the stability of bus connection is effectively improved.

This utility model discloses a micro-liquid pipette for cosmetic testing, relating to the field of cosmetic testing technology. It includes a main housing and a disassembly / assembly assembly. The main housing is an integrated structure. The disassembly / assembly assembly is located on the lower side of the main housing and includes a fixing ring, a magnetic fixing layer, a silicone sealing gasket, an annular sealing groove, a connecting mounting cylinder, a magnetic fixing ring, a fixing support ring, a rubber sealing ring, and a micro-pipette. The fixing ring is located on the lower side of the main housing, and its upper surface is tightly connected to the lower surface of the main housing. This micro-liquid pipette for cosmetic testing allows for rapid disassembly and assembly of the micro-pipette through the disassembly / assembly assembly. It is stable, has strong sealing properties, and is not prone to leakage. The pipetting assembly enables micro-volume pipetting, and the inner surface and piston are not easily damaged during use, extending its service life.

The present application provides a kind of geothermal drilling drainage device based on buoyancy principle.The geothermal drilling drainage device based on buoyancy principle includes geothermal well;Filtering mechanism;Limiting mechanism;Drainage mechanism, the side wall of the limiting mechanism is connected with the suction pipe;The side wall of the fixed net is wrapped with the geotextile layer, and the side wall of the fixed net is installed with multiple floating plates;Adjusting mechanism, the bottom end of the fixed net is fixedly connected with the cylinder, the side wall of the cylinder is installed with the sealing ring and the communication pipe;The inside of the sealing ring is slidably connected with the first connecting rod, the first connecting rod is slidably connected with the inside of the second connecting rod;The bottom end of the first connecting rod is fixedly connected with the compression plug, the compression plug is slidably connected with the inside of the cylinder;Sealing mechanism;Compression mechanism.The geothermal drilling drainage device based on buoyancy principle provided by the present application has the advantages of changing the water intake height according to the water quantity inside the geothermal well, preventing the water intake from being blocked.

This invention discloses a photoresist stripping device that avoids parasitic gate effects and murex patterns. The photoresist stripping device is sequentially configured with a drying zone, a stripping zone, a hot water washing zone, an ultracooled water washing zone, and an air drying zone according to the substrate transport direction. A hot air knife for blowing hot air onto the substrate surface is provided at the outlet of the stripping zone. A second spray pipe for spraying hot water onto the substrate surface is provided in the hot water washing zone. A cold air knife for blowing cold air onto the substrate surface is provided at the inlet of the ultracooled water washing zone. A third spray pipe for spraying ultracooled water onto the substrate surface is provided in the ultracooled water washing zone. The photoresist stripping device also includes a vortex tube, a heating device, and a cooling device. This invention avoids the product yield and quality risks caused by parasitic gate effects and murex patterns; it also ensures the versatility of the photoresist stripping equipment, which is beneficial for production line logistics optimization and capacity improvement.