57results about How to "Increase work costs" patented technology

A projection display device includes: a housing; a fan disposed within the housing, the fan having a vane portion and a fan case accommodating the vane portion so as to be rotatable; and multiple vibration-proofing members having at least one of elasticity and viscosity, the vibration-proofing members being disposed at multiple positions in the circumferential direction of the perimeter face portion of the fan case surrounding the vane portion around the rotational axis of the vane portion, such that the vibration-proofing members are introduced between the housing and the fan case.

A hydraulic antivibration device is provided that is capable of suppressing generation of strange sounds while ensuring a low dynamic spring characteristic upon inputting of relatively small amplitude vibration and a high damping characteristic upon inputting of relatively large amplitude vibration. To that end, upon inputting of relatively large amplitude vibration, displacement-regulating ribs of one of sandwiching members serve to regulate displacement of an elastic partition membrane pinched by the sandwiching members thus obtaining a high damping characteristic. The displacement-regulating ribs consist of three pieces extending radially and rectilinearly, so that the area of openings of the sandwiching members is made wide enough to ensure more a low dynamic spring characteristic. Displacement-regulating protrusions of the elastic partition membrane are disposed to correspond to the displacement-regulating ribs thereby ensuring to suppress the generation of strange sounds.

The invention discloses a double-frequency transmitting monopole antenna for portable high-frequency ground wave radar. The double-frequency transmitting monopole antenna consists of an antenna upper section, a wave trap, an antenna lower section, a feed base and a ground network, wherein a conductor on the antenna upper section is h1 high and a conductor on the antenna lower section is h2 high. When the wavelength lambda 2 corresponding to the radar signal frequency f2 meets a formula of h2=k lambda2 / 4, the wave trap makes resonance oscillation so as to equivalently isolate the antenna upper section and ensure that the antenna upper section becomes a typical quarter-wave vertical monopole on the ground and has a major lobe of a radiation directional diagram along the ground surface. When the radar signal frequency is far lower than f2, the wave trap is in dissonance, so that the whole height of the antenna is equivalently increased to h3, and therefore the whole antenna forms a quarter-wave monopole with resonance being in lower frequency f1, meets a formula of (h1+h2+h3)=k Lambda 1 / 4 and has a major lobe of a radiation directional diagram along the ground surface as well. The double-frequency transmitting monopole antenna disclosed by the invention can work on two frequency bands respectively taking f1 and f2 as central frequencies conveniently, and both the two frequency bands have major lobes of directional diagrams along the ground surface. Besides, the adopted feed base realizes favorable waterproof structure design.

Provided is an apparatus for mounting an electronic component having a plurality of board insert type leads on a board. The apparatus includes a mounting head having a first chuck unit which chucks one of the plurality of leads of the electronic component, a second chuck unit which chucks another one of the plurality of leads and a position adjusting unit which changes relative positions of the first chuck unit and the second chuck unit to hold the electronic component, and a mounting head moving unit which moves the mounting head to insert the leads of the electronic component held by the mounting head respectively into lead insert holes provided in the board.

A deep sea ultrahigh pressure environmental simulation and detection device comprises a cylindrical shell section. A spherical head is installed at the bottom of the cylindrical shell section. The outer circumference of the upper end of the cylindrical shell section is sleeved with a sleeve loop. A shearing groove is formed in the inner annular face of the upper portion of the cylindrical shell section. An opening in the upper end of the cylindrical shell section is provided with a flat cover through a sealing bracket. An automatic assembly and disassembly device and a shearing resistance block are installed on the flat cover. The shearing resistance block is connected into a shearing groove of the cylindrical shell section in a clamped mode. The outer circumferential face of the flap cover and the inner annular face of the cylindrical shell section are sealed through a plurality of first sealing rings. The sealing bracket is of annular structure. Steps are arranged on the sealing bracket, and the first step surface and the second step surface of the sealing bracket are in sealed connection with the inner annular face and the bottom face of the flat cover through second sealing rings respectively. By the utilization of the deep sea ultrahigh pressure environmental simulation and detection device, an ultrahigh environmental simulation test platform and reliable technical support are provided for deep sea diving device and equipment development, the success rate of equipment research and application is improved, and development of the deep sea diving device technology and equipment development is facilitated.

The invention discloses a method for FPGA coarse-grained parallel wiring based on optimal division of netlist position information. Through a recursive method, task division is implemented, and the wiring information of tasks can be synchronized, so that the wiring paths of all signal lines can be searched based on the current punishment cost; aiming at a wiring set N, a serial wiring method is adopted if the set is small enough; N is divided into sets S-, S0 and S+ which are respectively a signal line set S0 crossing two sub regions, a signal line set S- at left (lower) sub region and a signal line set S+ at the right (upper) sub region if the set does not meet the small enough condition; S- and S+ are respectively subjected to task division along different directions by a recursive division method, so that a signal line set in a binary tree form can be generated; the parallel wiring operation is implemented, so that the wiring process is completed. According to the method, the FPGA developing efficiency is improved, the work time and work cost are saved, and the wide application of FPGA can be promoted.

The invention discloses a PDC (polycrystalline diamond compact)-impregnated segment hybrid self-adaptive drill bit, consisting of a steel matrix, a plurality of self-adaptive elements and a plurality of PDC tooth-impregnated segment hybrid cutter wings, wherein the PDC tooth-impregnated segment hybrid cutter wings are fixedly arranged on the steel matrix by pin shafts, and the plurality of self-adaptive elements are respectively and fixedly arranged between the steel matrix and the PDC tooth-impregnated segment hybrid cutter wings; when the PDC-impregnated segment hybrid self-adaptive drill bit is used for drilling soft to medium hard formations, a PDC drill bit plays a main role of cutting; when the PDC-impregnated segment hybrid self-adaptive drill bit is used for drilling a hard formation, a diamond-impregnated bit plays a main role of crushing rocks; therefore, the adaptation of the drill bit to the formations is greatly improved, the characteristic of efficiently crushing the rocks of the drill bit is also maintained, and the drill bit replacement times are reduced. The PDC-impregnated segment hybrid self-adaptive drill bit is simple in structure, is provided with the conveniently-disassembled cutter wings, and integrates the advantages of the PDC drill bit and the diamond-impregnated bit, thus greatly improving the adaptation of the drill bit to the formations, and being not only capable of maintaining the drill bit to efficiently crush the rocks, but also reducing the impact and damage of the formations to PDC teeth.

The invention relates to a non-contact voltage measurement method and device, computer equipment and a storage medium, and belongs to the technical field of power testing. The non-contact voltage measuring method comprises the following steps of: acquiring waveform information of voltage on a voltage dividing unit; inputting a first reference voltage signal with the same frequency and phase as the voltage on the voltage dividing unit to an electrical loop according to the waveform information, and detecting the voltage on the voltage dividing unit to obtain a first voltage signal; after inputting the first reference voltage signal, inputting a second reference voltage signal with the same frequency and opposite phase as the voltage on the voltage dividing unit to the electrical loop according to the waveform information, and detecting the voltage on the voltage dividing unit to obtain a second voltage signal, making the amplitude of the first reference voltage signal equal to that of the second reference voltage signal; and calculating the voltage of a to-be-tested circuit according to the first voltage signal and the second voltage signal. The method can conveniently and simply detect the voltage at any position in a power transmission line.

The invention discloses textile industry industrial site Ethernet control system and method. The Ethernet control system comprises Ethernet ports, a switch, a server and user computers, wherein the Ethernet ports are respectively connected with various machines on the industrial site and the switch; and the server is respectively connected with the switch and the user computers. The textile industry industrial site Ethernet control method comprises the following steps: collecting and sorting the data of various machines and equipment; and converting the original data into concrete production and failure information to be displayed. By the industrial site control system and method, workers can monitor and process the machines and the equipment on the industrial site just by remotely operating the computers; and moreover, by the method, a person can simultaneously control hundreds of machines and equipment so that the working efficiency is greatly improved, and the cost is greatly decreased.

The invention belongs to the technical field of plant protection machines in greenhouses, and particularly relates to a rail-type multi-row operation spraying machine used for a greenhouse. The rail-type multi-row operation spraying machine is composed of rails and a rail-type multi-row operation body. The multi-row operation spraying machine body can avoid arranged hanging wires used for assisting growth of crops in greenhouses, such as cucumber and tomato greenhouses, the multi-row operation spraying machine body runs on the rails arranged among rows, pesticide can be sprayed to three rows of cops through one-time operation, and in order to avoid the hanging wires, a lifting mechanism, a rotary mechanism and a hanging rod retracting mechanism are designed for the multi-row operation spraying machine body; the multi-row operation spraying machine body avoiding the arranged hanging wires runs in the greenhouse, and the work efficiency of plant protection operation in the greenhouse isimproved.

The invention relates to a plastic part surface polishing automatic processing robot. The plastic part surface polishing automatic processing robot comprises a base plate, a top frame, a polishing device, a clamping device and a conveying device. The top frame is installed on the base plate, the polishing device is installed at the lower end of the top frame, the clamping device is arranged at thelower end of the polishing device, the conveying device is arranged on the inner side of the clamping device, and the clamping device and the conveying device are installed on the base plate. The polishing device comprises an installation frame, a rotating motor, a gear, a gear ring, polishing rings, connecting columns, supporting ring frames and supporting frames. The conveying device comprisesa connecting frame, a driving motor, a conveying disc, supporting columns and material placement bases. The plastic part surface polishing automatic processing robot can overcome the defects that in the existing cylindrical plastic part polishing process, the working efficiency is low, the manual dependence degree is high, the working cost is high, and the application range is small, and can fulfill the function of automatically polishing cylindrical plastic parts.

The invention provides a tail gas treatment method and device for a CVD / CVI technique. Three stages of adsorption which are cooperated and supported with each other are designed, wherein during the primary adsorption, by using the reverse contact between adsorption oil and the tail gas, the mixing time of the tail gas and oil mist is prolonged, the temperature of the tail gas is lowered, the liquefied solid-liquid organics are instantaneously bonded with the adsorption oil and together fall down onto a carbon felt in a crucible, thus the tail gas adsorption capability is improved; meanwhile, after the oil mist with the organics falls down onto the carbon felt strip in the stainless crucible, the bonding capability of th carbon felt is enhanced; when passing through the gapes and vent holes among the carbon felts, the tail gas is again filtered through the carbon felt of multiple layers of densities and gradients; and when the tail gas is exhausted out of a metal tank body, the adsorption oil at the bottom of the tank can be used for filtering again. Through the multiple stage filter method, the solid-liquid organics content in the tail gas is greatly reduced, thus the work safety factor and cost of a subsequent metal device are increased.

An industrial robot having means for judging the matching of TP software in an exemplary pendant and controller software in a controller. When a mismatch occurs, a mismatch condition can be indicated in the demonstration pendant and can be obtained by transferring the controller software from the demonstration pendant to the controller, or the TP for the demonstration pendant Software is transferred from the controller to the demonstration pendant, and the software of at least one of the demonstration pendant and the controller is automatically updated.

The invention discloses a pet snack stirring apparatus, and relates to the technical field of pet breeding. The pet snack stirring apparatus comprises a stirring box, wherein two sides of the bottom of the stirring box are respectively fixedly connected with a supporting leg, two sides of the bottom of the stirring box are respectively provided with a discharging pipe which is communicated with the two supporting legs, two sides of the stirring box are respectively communicated with a feeding hopper, two sides of the top of the stirring box are respectively fixedly provided with a supporting rod, the top end of each supporting rod is fixedly connected with a drive apparatus, and the top of the stirring box is provided with a fixed box which is fixedly connected with the two supporting rods. By adopting the pet snack stirring apparatus, snacks stuck on a stirring plate can be scraped after the snacks are stirred, the snacks can be prevented from being stuck on the stirring plate and being not easy to discharge, the residual snacks can be completely extruded after the stirring is completed, the problem that the snacks are stuck inside a stirrer and not easy to discharge can be solved, the manual step for taking out the snacks from the machine can be omitted, the waste of a great amount of snacks can be avoided, and the increment of the operating cost is reduced.

The invention belongs to the technical field of 3D printing equipment, and particularly relates to a 3D printing injection mold convenient to disassemble. The two ends of a printing platform are rotatably connected with a 3D printer body through rotating pins, the bottom of the printing platform is rotatably connected with an electric control moving rod through a rotating base, the end, away from the printing platform, of the electric control moving rod is fixedly connected with the inner wall of a discharging bin of the 3D printer body, and an ejection device is arranged on the side, close to the electric control moving rod, of the printing platform. The electric control moving rod is controlled to stretch out and draw back, so that the printing platform is driven to be closed and opened, a printing mold is separated from a printing plane of the printing platform, the ejection device moves out of one side of the printing platform along with movement of the printing platform to eject an auxiliary protection block out of the printing plane of the printing platform, in secondary printing, the printing mold does not need to be taken out after a bin door of printing equipment is opened, meanwhile, the cleaning time of the printing equipment is shortened, the equipment can work continuously, and the working efficiency of the equipment is improved.

The invention discloses a hoisting machine with high stability and relates to the technical field of hoisting equipment. The hoisting machine comprises a base. The bottom of the inner wall of the baseis fixedly connected with a first motor, and an output shaft of the first motor is fixedly connected with a driving gear; the right side of the driving gear is engaged with a transmission gear, and arotating column is fixedly connected to the axis of the transmission gear; the bottom end of the rotating column is rotationally connected with the bottom of the inner wall of the base; and the top end of the rotating column penetrates through the base and extends out of the base. The hoisting machine with the high stability can provide buffering protection when moving, so that the situation thatthe machine is damaged due to severe shaking is prevented, and accordingly the work cost is reduced; when the hoisting machine works, the supporting area of the hoisting machine can be increased, andthe supporting gravity center of the hoisting machine can be heightened, so that the stability of the hoisting machine is improved, the situation that the hoisting machine topples when working is prevented, and the working efficiency is improved; and the position of a hook is convenient to adjust, and the hook can lift a weight conveniently.

A novel flexible transmission heading machine cutting part comprises a cutting head, a planetary gear reducer, a flexible transmission mechanism and a cutting motor shaft, wherein the cutting head is arranged at the front end of the planetary gear reducer, the planetary gear reducer is connected with the flexible transmission mechanism through a flexible transmission shaft, the other end of the flexible transmission mechanism is connected with the cutting motor shaft, the flexible transmission shaft adopts a pair of bearings supporting the inner side of a planetary carrier, and a sun gear is fixed at the front end of the flexible transmission shaft; the flexible transmission shaft is provided with two aluminum discs distributed in parallel; an end cover connected with the rear end of the flexible transmission shaft is connected with a motor coupling through a bolt, and the cutting motor input shaft is fixed in the motor coupling and is mounted in a cutting cantilever. Compared with the prior art, the novel flexible transmission heading machine cutting part provided by the invention comprises the novel flexible transmission mechanism, so that soft start of a heading motor can be realized, and the impact vibration caused when the heading machine cutting part starts can be reduced.

The invention discloses an atomization air cooling device for high-carbon steel production. A frame body is arranged on the outer side of a device body, a fan is arranged at the bottom of the frame body, a fixing frame is arranged on one side of the frame body, a gas-liquid mixing pipe is arranged on the top of the fixing frame, the other end of the gas-liquid mixing pipe is provided with a water outlet, one end of the water outlet is provided with a base, one end of the base is provided with an atomization spray head, the bottom end of the atomization spray head is provided with a rotary bearing, the top of the rotary bearing is provided with a spray rod, the top of the spray rod is provided with a spray ball, one side of the spray ball is provided with a nozzle, blades are arranged on the periphery of the rotary bearing, the top of the atomization spray head is provided with an air outlet, the top of the air outlet is provided with a roller bed, and the top of the roller bed is provided with steel materials. One side of the spray ball is provided with the nozzle, the overall structure of the nozzle is in the design of a horn shape, the spray range is wide, the effect is good, and the cooling speed of the steel materials can be conveniently improved.

The invention discloses a wood structure connecting piece and wood structure combination. The wood structure connecting piece comprises a longitudinal fixing plate, a transverse fixing plate and a second transverse fixing plate. A through hole is connected to the bottom of the longitudinal fixing plate in a penetrating mode, a movable guide rail is fixedly connected into the through hole, and a second longitudinal fixing plate is movably connected to one side of the longitudinal fixing plate. A second movable guide rail is fixedly connected to the back of the movable guide rail, the transverse fixing plate is fixedly connected to the other side of the bottom of the longitudinal fixing plate, a second transverse fixing plate is fixedly connected to one side of the bottom of the second longitudinal fixing plate, the practicability of the device body is improved through an second transverse fixing plate. A lateral movement preventing mechanism prevents wood from deviating in the installation process, fixed scale indication lines improve the working efficiency of workers, an information nameplate table improves the publicity of the device body, and the device is suitable for being used for the wood structure connecting piece and has wide development prospects in the future.

The invention relates to a device for separating slag and powder in the primary treatment and secondary treatment processes of stainless steel slag. The device comprises an air supply system, a slag turning mechanism, a fine powder settling chamber, a fine powder conveying device, a fine powder dust collecting chamber, a pipeline device and an air purifying and exhausting device. The stainless steel slag is cooled in a pulse air cooling mode, so that the steel slag is self-pulverized more thoroughly, the working environment of workers is improved, and air holes or spraying holes can be prevented from being blocked by fine powder flying dust; the dust collection pressure is reduced, the wind resistance is reduced, and the dust collection efficiency is improved; and a branch pipe of the fluegas exhaust device is adopted, so that the property of pulse blowing air can be adjusted as required.

The invention relates to an automobile engine cylinder body cylinder hole intelligent processing system and a cylinder body processing technology. The processing system comprises a bottom plate and acleaning device, wherein the cleaning device is arranged in the middle of the bottom plate, the cleaning device comprises a linear guide rail, an electric sliding block, a mounting plate, a rotating motor, a first rotating rod, a second rotating rod, a guide frame and a cleaning mechanism, and the cleaning mechanism comprises a rotating plate, a connecting shaft, a connecting rod, a working plate,a cleaning motor, a working cylinder, a dry ice spraying gun, an adjusting motor, an adjusting plate, a fixing plate, a convex column, an adjusting rod, a cleaning plate, a telescopic connecting plate and a bearing frame. According to the automobile engine cylinder body cylinder hole intelligent processing system and the cylinder body processing technology, the problems that in an existing enginecylinder body cylinder hole cleaning process, the working cost is high, the cleaning difficulty is large, the labor intensity is large, the using range is small, and the working efficiency is low canbe solved, the function of automatically cleaning a cylinder hole of a cylinder body of a working engine can be achieved, and the advantages that the working cost is low, the cleaning difficulty is small, the labor intensity is small, the using range is wide and the working efficiency is high are achieved.

The invention discloses a carton die-cutting machine, and relates to the technical field of carton cutting. A fixed frame is fixedly connected to one side of a die cutting control box, a cutting mechanism is arranged inside the fixed frame, feeding ports are formed in two sides of a cutting fixing shell correspondingly, fixed plates are fixedly connected to the side faces of the inner walls of the cutting fixing shell correspondingly, a cutting device is arranged on one side of each fixed plates, a first electric roller is arranged on one side, away from the fixed plates, of the cutting device, a cleaning mechanism is arranged on one side, away from the cutting device, of the first electric roller, a pressing roller is arranged on one side, close to the cutting device, of the cutting fixing shell, a second electric roller is arranged below one side, close to the pressing roller, of the cutting fixing shell, a conveying device is arranged below one side, close to the second electric roller, of the feeding ports. According to the carton die-cutting machine, after equipment cuts a carton, a worker does not need to manually clean sweeps in the equipment, and after work, a cutting knife board is moved into a knife holder shell and does not need to be stored in a tool box, so that the storage space of a knife is reduced.

The present invention discloses a dual-band transceiver co-pole antenna system for a high-frequency marine radar. According to the system, two horizontal orthogonal loop antennas which can receive radar echo signals in double frequencies and a vertical monopole which can transmit and receive a radar signal alternately in double frequencies are combined on a support pole, when the system is used for target direction determination (DF), two orthogonal loops are used to receive the inherent nature characteristics of an echo signal to obtain the ideal directional graph of a receiving antenna, and the troublesome field measurement of the antenna directional pattern is not needed, and the detection performance is greatly improved by using a radar with two working frequencies at the same time. A part of the monopole is formed by the antenna support pole, the rigidity is strong, and thus the antenna system is fixed on a concrete base without a rope.

The invention belongs to the technical field of road and bridge surface spraying, and particularly relates to a bridge and road spraying device which comprises a base, a pushing handle, a machining unit, a walking unit, a spraying unit and a controller. The spraying unit comprises a supporting rod, a roller and a first spring; the upper surface of the supporting rod is fixedly connected with a mounting plate; the upper surface of the mounting plate is fixedly connected with a copper pipe; a sliding column is connected in the copper pipe in a sliding manner; a circular ring is mounted on the surface of an inner ring above the copper pipe; the upper end of the sliding column penetrates through the ring and extends out of the upper end of the copper pipe; a plurality of second springs are uniformly and fixedly connected to the lower surface of the circular ring; the upper end of the sliding column is fixedly connected with a pressurizing device; the lower surface of the pressurizing device is fixedly connected with a paint containing cavity; and a plurality of spray heads are uniformly and fixedly connected to the lower surface of the paint containing cavity; The device is simple in structure, and the problems that in the spraying process of a spraying device in the prior art, due to the fact that the road surface is not absolutely flat, a paint spraying vehicle shakes during paint spraying, the edge of sprayed paint is irregular, and the road attractiveness is affected can be solved.

The invention discloses a numerical control machine tool capable of draining water conveniently. The numerical control machine tool comprises a machine tool machining device, a liquid storage shell isfixedly connected to one end of the machine tool machining device, a liquid draining hopper is arranged on the side, close to the top of the machine tool machining device, of the liquid storage shell, a first filtering mechanism is fixedly connected to the bottom of the inner wall of the liquid storage shell, a second filtering mechanism is fixedly connected to one side of the first filtering mechanism, and a balance plate is fixedly connected to the end, away from the second filtering mechanism, of the first filtering mechanism. A supporting frame is fixedly connected to the bottom of the inner wall, away from the balance plate, of the liquid storage shell, a circulating pump is fixedly connected to the top of the supporting frame, the input end of the circulating pump communicates withthe interior of the liquid storage shell through a pipeline, and the output end of the circulating pump communicates with a spraying pipeline. The invention relates to the technical field of machining. According to the numerical control machine tool capable of draining water conveniently, the situation that scrap iron enters the liquid storage shell along with cutting liquid is reduced, the quality of the cutting liquid is improved, the utilization rate of the cutting liquid is increased, and the working cost is reduced.

The invention discloses a mold taking manipulator for injection molding. The top of a supporting base is rotationally connected with a rotating shaft, the end, away from the supporting base, of the rotating shaft is fixedly connected with a fixed sliding block, the side face of the inner wall of the fixed sliding block is connected with a moving rod through a motor, and the top of the end, away from the fixed sliding block, of the moving rod is provided with a pneumatic lifting device. One end of the pneumatic lifting device penetrates through the moving rod and is in threaded with a mold taking manipulator body. A threaded hole is formed in the top of a connecting block, locking grooves are formed in the side faces of the connecting block, a mechanical arm is fixedly connected to the bottom of the connecting block, a connecting groove is formed in the side face of the mechanical arm, and a mold taking clamping jaw is rotationally connected to the side face of the inner wall of the connecting groove through a rotating pin. And an electromagnetic block is arranged at the bottom of the inner wall of the connecting groove. The invention relates to the field of injection molding equipment accessories. According to the mold taking manipulator for injection molding, injection molding parts with high surface precision can be conveniently taken out, and different mechanical arms do not need to be frequently replaced when the mold taking manipulator takes different injection molding parts.

The invention provides a new energy automobile charging fixing pile, a first through groove is located in the top of a base shell, a second through groove penetrates through the top and the bottom of the base shell, the side face of the inner wall of the first through groove is slidably connected with a parking plate, the bottom of the parking plate is fixedly connected with a compression device, one end, away from the parking plate, of the compression device is fixedly connected with the bottom of inner wall of base shell, the side face, close to the bottom of the base shell, of the second through groove is fixedly connected with an elastic sealing block, the side, away from the second through groove, of the elastic sealing block is slidably connected with a fixing mechanism, one side of the fixing mechanism is connected with the compression device through a connecting lever, and one side of the connecting lever is fixedly connected with the bottom of the inner wall through a rotating seat and a fixing rod. The invention relates to the technical field of new energy automobile charging. According to the new energy automobile charging fixing pile, the situation that a drill rod shakes in a drill hole, so that the hole diameter of the drill hole is increased is avoided, and therefore the situation that personnel and property losses are caused and the working cost is increased due to dangers caused by the fact that the device cannot be firmly connected with the ground is avoided.

A herbal hot fumigation tank comprises a hollow hot tank formed through injection molding, the inner layer of the hot tank is provided with a layer of hollow inner cavity, the hollow inner cavity is provided with a top opening communicated with the inner cavity in the top area of the inner wall of the hot tank, and the hollow inner cavity is provided with a plurality of bottom openings communicated with the inner cavity in the inner wall of the edge of a tank opening in the bottom of the hot tank; a heating device is internally or externally arranged on the outer layer of the area below the tank waist of the hot tank, heats air flow in the hollow inner cavity in the area below the tank waist, and is a replaceable external heating device or an internal heating device internally arranged in the outer layer of the hot tank; a detachable sponge gasket is placed on the edge of a tank opening of the hot tank, the hot tank is arranged above the sponge gasket when the hot tank is used, and a herbal bag is placed in the hot tank. On the premise that the nursing efficiency, the temperature and the herbal efficiency are not reduced, the tank using time is prolonged, the cost is reduced, the nursing effect is improved, and the use experience of a user is improved.