133results about How to "Avoidance of injury" patented technology

The invention is applicable to the technical field of mobile terminals and provides a method and a device for headset audio playing. The device comprises an audio output unit outputting audio in a mobile terminal. When the audio output unit is a preset unit, the audio output unit detects whether a headset accesses into the mobile terminal or not. The preset unit comprises one or more of a loudspeaker, a sound box, a sound console, a power amplifier and a multimedia console. When the headset is detected to access into the mobile terminal, volume of the output audio is controlled to be proper. In the embodiment, when the headset is accessed into the mobile terminal, the volume of the output audio is controlled to be proper, volume of the headset is avoided from being high, eardrums of users are protected from damages, and burnout of the headset or sound distortion caused by disconnection and dislocation of a voice coil of the headset are avoided, thereby safety of the eardrums of the users playing the audio through the headset is improved, and service life of the headset is prolonged.

The invention discloses a spiral inclined cross-ridge adjustable ridging machine. The spiral inclined cross-ridge adjustable ridging machine comprises a machine frame. A hydraulic mechanism is arranged on the machine frame, and the lower portion of the machine frame is provided with a depth limiting mechanism, a soil loosening mechanism, a soil distributing mechanism and a spiral ridging mechanism from front to back in sequence. The spiral inclined cross-ridge adjustable ridging machine further comprises a ridging spacing adjusting mechanism arranged on the back of the machine frame. The ridging spacing can be adjusted according to the growing situation of crops in the intertillage ridging period and the soil situation through the ridging spacing mechanism, and the damage to the crops due to the over-wide or over-narrow ridging spacing is avoided. Ridge forms with different gradients can be formed through a ridge form adjusting mechanism according to the soil terrain situations, and the ridge form formed after ridging can be kept with a good original shape. The soil can be slantly milled and conveyed through the spiral ridging mechanism, the original mode that a ridging cutter blade pushes the loosened soil to the outer side of a packing auger, and the soil is thrown to the roots of the crops through the inertia is changed, the soil flow direction can be controlled, the mechanical damage to crops leaves can be reduced, and the soil ventilation performance is improved.

The invention provides a triggering mechanism of a life-saving device, comprising a shell, a driving assembly and a traction rope. The driving assembly comprises a handspike, a rotary rod, a thimble and a hook rod, wherein the rotary rod, the thimble and handspike are distributed in the shell in an n shape, one end of the thimble abuts on an air bottle, the other end of the thimble abuts on the side surface of the rotary rod, one end of the handspike is provided with a main spring, one end of the handspike abuts on one end of the main spring, the other end of the handspike abuts on the side surface of the rotary rod, the hook rod is arranged in the shell, a gemel is arranged at the long-edge end of the hook rod and provided with a booster spring at the outer side, the booster spring is parallel to the gemel, and one end of the traction rope is fixedly connected with a middle rotating shaft of the gemel. During the inflation, the rotary rod rotates by using the supporting shaft as a fulcrum to abut on the thimble, the thimble pierces the air bottle under the action of the rotary rod, and the air is released, thus the inflation of the life-saving device is completed so as to activate great power with smaller force.

The invention relates to a medical test tube treating instrument. The medical test tube treating instrument comprises a bottom plate, a mounting frame, a storing device, an auxiliary device, a cleaning device and a sewage tank. The storing device, the mounting frame and the auxiliary device are sequentially mounted on the bottom plate from left to right; the cleaning device is mounted at the lowerend of the mounting frame, and the sewage tank is arranged at the lower end of the cleaning device and mounted on the side wall of the mounting frame; the storing device comprises a linear guide rail, an electric sliding block, a mounting plate and a placing mechanism; the auxiliary device comprises a rotating mechanism and an auxiliary mechanism; and the cleaning device comprises a water pipe, apower mechanism and a cleaning mechanism. According to the medical test tube treating instrument, the problems that in the existing medical test tube cleaning process, the dependence degree on manualwork is high, the working efficiency is low, potential safety hazards exist, and cleaning is not thorough can be solved, the function that medical test tubes are automatically cleaned can be achieved, and the medical test tube treating instrument has the advantages that automatic cleaning can be achieved, the working efficiency is high, safety is good, and the cleaning effect is good.

The invention relates to a cooler and a refrigerant detection method, device and system thereof. The current pressure data on a condenser gas collection main pipe of the cooler is acquired and analyzed, and then the pressure deviation value corresponding to the current pressure data is obtained according to a preset pressure database. When the pressure deviation value is greater than or equal to the preset deviation value, refrigerant leakage of the cooler at the moment is considered, and the alarm message about the refrigerant leakage is controlled and output right away, so that a user is timely informed that the refrigerant leakage risk of the cooler and can overhaul the cooler without delay. Through the scheme, as long as the current pressure data of the condenser gas collecting main pipe are detected to be greatly changed, the corresponding alarm message about refrigerant leakage can be output to inform the user, therefore, when refrigerant leakage occurs, the user can be informedin time, main parts of a machine tool can be effectively prevented from being damaged due to cold water temperature fluctuation, and the detection is highly reliable.

The invention discloses an automatic packaging and peculiar smell prevention garbage can for household. The garbage can comprises a garbage can, wherein a fixing cavity with an upward opening is formed in the garbage can, an air suction cavity is communicated with the lower portion of the fixing cavity, a fixing box is fixedly arranged in the air suction cavity, an accommodating cavity with an upward opening is formed in the fixing box, when a pedal is trampled, the pedal drives a transmission rod to rotate, and the transmission rod rotates to drive a threaded block to move rightwards. A control mechanism can control whether a motor is electrified or not, when the motor is electrified, the motor can drive fan blades to rotate, the fan blades suck peculiar smell gas into an air exhaust cavity, the peculiar smell gas is discharged through adsorption carbon, so that the peculiar smell can be prevented from being emitted out of the garbage can when a cover is opened; a pushing mechanism pushes a pushing block to move, a rubber band is conveyed out of a packaging cavity and is used for binding a garbage bag by means of elasticity, when the cover is opened, a sliding block in the controlmechanism rotates and moves upwards, so that a clamping block is clamped into a clamping groove, so that the movement of a pressing plate is limited.

The invention discloses a derrick erection wireless video monitoring system and a derrick erection wireless video monitoring method, and relates to the power transmission line construction technology field. A technical problem of low safety coefficient during a conventional derrick erection process caused by strong randomness and uncertainty of judgement of construction command staff is solved. The derrick erection wireless video monitoring system comprises a wireless tensile force monitoring device, a wireless video monitoring device, a wireless inclination angle monitoring device, and a ground monitoring platform. The output end of the wireless tensile force monitoring device, the output end of the wireless video monitoring device, and the output end of the wireless inclination angle monitoring device are wirelessly connected with the input end of the ground monitoring platform. The derrick erection wireless video monitoring system and the derrick erection wireless video monitoring method are used for monitoring the derrick erection construction process.

The invention discloses a leakage current detecting device and vehicle charging equipment, wherein the leakage current detecting device comprises a leakage current coupling module, a voltage conversion module, an amplification module, a comparison module, a reference voltage module and a processing module, wherein the leakage current coupling module is used for coupling leakage current of the vehicle charging equipment so that the voltage conversion module converts the leakage current to to-be-detected voltage. After the to-be-detected voltage is processed by the amplification module, to-be-compared voltage is obtained. The comparison module determines whether the to-be-compared voltage exceeds a preset value, if yes, the comparison module determines a fact that the leakage current causes injury of personnel in contact with the vehicle charging equipment, and the comparison module transmits an emergency instruction to the processing module. The processing module is used for displaying the to-be-compared voltage and stops operation of the vehicle charging equipment after the emergency instruction is received, thereby realizing detection and response to the leakage current, and preventing injury of the personnel in contact with the vehicle charging equipment caused by the leakage current on the vehicle charging equipment.

The invention provides a multi-mode detection alarm device and method for mistakenly locking a child in a vehicle. The multi-mode detection alarm device comprises a power supply, a power supply voltage stabilizer, a microwave radar module, a voice detection module, an IMU sensor, a single-chip microcomputer and an Internet of Things alarm module. The power supply supplies power to the microwave radar module, the voice detection module and the IMU sensor through the power supply voltage stabilizer. The microwave radar module, the voice detection module and the IMU sensor are connected with thesingle-chip microcomputer. The single-chip microcomputer is connected with the Internet of Things alarm module. And the Internet of Things alarm module is used for receiving the abnormal signal sent by the single-chip microcomputer and sending an alarm signal to the outside. The device is easy to install and convenient to use, the interior of the vehicle can be monitored through external equipmenton the premise that the vehicle does not need to be refitted, and the problem that a child locks the interior of the vehicle by mistake to cause danger is effectively solved.

The invention discloses a color Doppler for the gynecology department. The color Doppler comprises a display screen, a connecting opening is fixedly connected to the portion below the display screen,a rotary arm is connected to the front portion of the display screen, an operating keyboard is fixedly connected to the portion below the connecting opening, a main body is connected to the portion below the operating keyboard, a drug bottle storage hole is formed in the left side of the operating keyboard, a sliding platform is slidably connected inside a sliding groove, a clamping strip is fixedly connected to the portion above the sliding groove, an operating platform is connected to the right side of a telescopic rod, a connecting spring is fixedly connected to the portion below the operating platform, a pressing platform is movably connected to the portion below the connecting spring, a probe clamping groove is connected to the portion below the pressing platform, a probe clamping hole is formed inside the probe clamping groove, a probe clamping strip is fixedly connected inside the probe clamping hole, and an ultrasonic probe is movably connected inside a probe fixing rod. Semi-automatic operation is adopted by the color Doppler, harm to the wrist of a medical worker when the medical worker holds a probe for a long time is reduced, and then errors in diagnosis and treatment is reduced.

The invention relates to the technical field of toys, and discloses an automatic toppling prevention device for a baby walker. The device comprises a shell, a button is fixedly connected to the outer part of the shell, an angle detection assembly is movably connected to the outer part of the shell, a motor is fixedly connected to the inner part of the shell, and a reciprocating lead screw is movably connected to the inner part of the shell. Under the interaction of the angle detection assembly, the motor, the reciprocating lead screw, a reciprocating groove, a reciprocating block, a connecting rod, a sliding rail, a retraction detection assembly, an extension detection assembly, a sliding block, a supporting shaft, an electromagnetic pump and a gas storage assembly, when a child topples over while riding the baby walker, the inclination condition of the baby walker can be detected at the first time under the action of the angle detection assembly and the supporting shaft, the supporting shaft can be rapidly stretched out to prevent the baby walker from continuing to incline, and therefore it is guaranteed that a child can exercise trustingly, and the situation that riding of the child is affected by the baby walker is avoided.

The invention discloses an integrated mobile soil remediation treatment equipment, which includes a mobile body, the upper part of the mobile body communicates with the soil inlet, and a fixed shaft is movably socketed at the center of the soil inlet through a bearing. The outer wall of the fixed shaft is fixed with a stirring knife, and one side of the fixed shaft is welded with a driven gear, the outer wall of the driven gear is meshed with a toothed belt, and the other end of the toothed belt is meshed with the driving gear. The driving gear is fixed on one side of the power shaft, the power shaft is connected to the motor, and the motor is fixed inside the electric box. This integrated mobile soil remediation treatment equipment can fully chop the soil, increasing the The surface area of ​​the soil, at the same time, the soil can be dried through the heating box when the soil is relatively wet, so that it can quickly and fully contact the potion in the repair tank, increase the degree of soil repair, thereby improving the quality of the soil, and avoid excessive Injury to plants by toxic residues.

The present invention discloses a charging control method. The method comprises: when it is detected that a mobile terminal is located at a charging state, detecting whether the mobile terminal is located at a preset busy state or not; and if the mobile terminal is located at the preset busy state, sending a preset disconnection instruction to a control device externally connected with the mobile terminal for disconnection of the charging connection between the mobile terminal and a preset power supply. The present invention further discloses a charging control device. The charging control method and device can effectively avoid the occurrence of conditions of damaging the human body caused by leakage when a mobile phone is charged and reduce the threat for the human body caused in the mobile phone charging process to be the lowest.

The invention discloses an intelligent all-in-one machine for feeding and cutting glass sheets. The intelligent all-in-one machine comprises a base, a driving motor, a vacuum pump, a fan and a hydraulic cylinder, wherein the driving motor, the vacuum pump, the fan and the hydraulic cylinder are separately arranged on the base and are separately connected with a PLC control box; the PLC control box is arranged on one side of the base; a cutting table is arranged on the base; a digital-control cutting device is arranged on the cutting table; an automatic glass sheet feeding mechanism is arranged on the other side of the cutting table; the digital-control cutting device comprises a digital-control moving crossbeam and a digital-control moving cutting head; and a digital-control moving cutting head and an infrared scanning device which is dragged by a digital-control servo motor are arranged on the digital-control moving crossbeam. According to the intelligent all-in-one machine disclosed by the invention, the structural design is reasonable, and the operation is simple, convenient and quick; and the PLC control box is adopted, so that intelligent control is realized, the working capacity of workers is reduced, the working hours are shortened, the processing accuracy and the processing precision degree are guaranteed, the safety of the working environment of the workers is guaranteed, the working efficiency is improved, and the producing cost of an enterprise is reduced.

The invention, which relates to the technical field of tensile machines, provides a high-precision and high-stroke tensile machine and an operating system thereof. The high-precision and high-stroke tensile machine Comprises a workbench; a first adjusting mechanism, a second adjusting mechanism and a PLC are fixedly installed on the upper surface of the workbench; a plurality of first auxiliary assemblies are arranged between the first adjusting mechanism and the second adjusting mechanism; a first moving plate is fixedly connected to the top of the first adjusting mechanism; an unwinding device, a guiding device and a first fixing plate are fixedly installed on the upper surface of the first moving plate; and a second moving plate is fixedly connected to the top of the second adjusting mechanism. According to the invention, because of the cooperation of the first adjusting mechanism, the second adjusting mechanism, the unwinding device, the guide device, the clamping mechanism and other structures, the whole device can continuously perform tension test on samples with different lengths, the operation process is very simple, tedious operation is avoided, and the efficiency of tension test is greatly improved.

The embodiment of the invention discloses a servo control method and device for a door module, electronic equipment and a storage medium. According to the embodiment of the invention, the direct-axisvoltage amplitude and the quadrature-axis voltage amplitude of a direct-drive servo motor are calculated and limited to realize the setting of the maximum running torque of the direct-drive servo motor and realize position loop torque control or speed loop torque control in the closed-loop direct-drive servo drive control process of a gate door module. Thus, when the gate door module runs in a door opening or closing state, a small running torque is provided so that the door is prevented from strongly impacting a human body and damaging the human body due to overlarge torque; and when the atedoor module is locked at the stop position, a large running torque is provided so that the door module can be well locked at the stop position, the situation in which the door is easily pushed open manually due to small torque is avoided, and the user experience is optimized.

The invention belongs to treadmills, and particularly relates to a suspension type weight-reducing treadmill. The treadmill comprises a base and a treadmill body, a first gravity sensor is fixedly mounted at the top of the base, and the treadmill body is fixedly mounted at the top of the first gravity sensor. The suspension type frame body is used for driving an elastic rope to pull a binding belt, so that a user can be lifted, the weight of the user is reduced, and the situation that knees are injured due to the influence of the self weight can be effectively avoided. Meanwhile, a motor can drive the elastic rope to be wound, different pulling forces can be provided, and the treadmill adapts to users of different weights. Meanwhile, a lifting rod is driven by a hydraulic cylinder to be lifted, so that a top plate is lifted, the treadmill can adapt to the users with different heights, and the treadmillis higher in applicability.

The embodiments of the present invention provide a structured optical module and a mobile terminal, wherein the structured optical module comprises a light source assembly, a bracket, a diffusing optical element, a pressure sensor, and a control chip in connection with the light source assembly; the pressure sensor is disposed in a sealed cavity formed by the light source assembly, the bracket andthe diffusing optical element and connected to the control chip; the pressure sensor is configured for monitoring a first air pressure value in the sealed cavity and sending the first air pressure value to the control chip; and when the first air pressure value is less than a preset threshold, the control chip controls the light source assembly to reduce the optical power. In the embodiment of the present invention, the pressure sensor is disposed in the sealed cavity of the structured optical module. When the pressure sensor detects that the first air pressure value in the sealed cavity is less than a preset threshold, the control chip controls the light source assembly to reduce the optical power, thereby effectively avoiding the situation that infrared laser signals cause harm to the human body when the structured optical module is in an abnormal working state.

The invention discloses a cleaning device for a kitchen knife, which comprises a cleaning box, wherein a water outlet is formed in the cleaning box and is provided with a knife stone, a water inlet isformed in the knife stone, a sponge is arranged below the water inlet and is internally provided with a rolling shaft, a spring is arranged at one end of the rolling shaft and is arranged inside a moving device, and the moving device comprises a rotating seat, a moving seat and a pull rod, so that accidents caused when a worker directly scrubs a knife can be avoided, meanwhile, the cleaning efficiency can be accelerated, the use cost is reduced, the benefits are improved, the knife can be ground rapidly, meanwhile, non-uniform grinding caused by grinding by the worker can be avoided, meanwhile, injury to a human body caused by the knife when the worker grinds the knife can be avoided, and further, the knife grinding safety can be improved. The cleaning device is easy to operate, strong inpracticability and convenient for promotion and use.

The invention discloses a soft touch screen protective film. The protective film comprises a polyethylene terephthalate (PET) film layer, a supporting layer, a silica gel layer, a fluoride release film and a buffer layer; the supporting layer is attached to the bottom of the PET film layer; the silica gel layer is attached to the bottom of the supporting layer; one side, far away from the supportlayer, of the silica gel layer is connected with the buffer layer; and one side, far away from the silica gel layer, of the buffer layer is connected with the fluoride release film, wherein the thickness of the fluoride release film is 50 microns. The buffer layer comprises a first high-transparency PET film, a second high-transparency PET film and a third high-transparency PET film, wherein the first high-transparency PET film is attached to the bottom of the silica gel layer, the second high-transparency PET film is connected to the bottom of the first high-permeability PET film, and the third high-transparency PET film is connected to the bottom of the second high-permeability PET film. The soft touch screen protective film can well prevent a situation that bubbles is generated when thefilm is adhered to a mobile phone touch panel, so that adhesion is facilitated, and meanwhile, a situation that damage to a human bodies due to the fact that a conventional toughened glass film is easily broken is avoided.

The embodiments of the present invention provide a structured optical module and a mobile terminal, wherein the structured optical module comprises a light source assembly, a bracket, a diffusing optical element, a pressure sensor, and a control chip in connection with the light source assembly; the pressure sensor is disposed in a sealed cavity formed by the light source assembly, the bracket andthe diffusing optical element and connected to the control chip; the pressure sensor is configured for monitoring a first air pressure value in the sealed cavity and sending the first air pressure value to the control chip; and when the first air pressure value is less than a preset threshold, the control chip controls the light source assembly to reduce the optical power. In the embodiment of the present invention, the pressure sensor is disposed in the sealed cavity of the structured optical module. When the pressure sensor detects that the first air pressure value in the sealed cavity is less than a preset threshold, the control chip controls the light source assembly to reduce the optical power, thereby effectively avoiding the situation that infrared laser signals cause harm to the human body when the structured optical module is in an abnormal working state.

The invention relates to a nano-pesticide unmanned aerial vehicle spraying system which is characterized in that the nano-pesticide unmanned aerial vehicle spraying system comprises a spraying unmanned aerial vehicle for spraying nano-pesticide and at least two loading unmanned aerial vehicles for loading pesticide boxes, and the pesticide boxes are used for storing the nano-pesticide required by spraying; wherein the spraying unmanned aerial vehicle is provided with a spray head, a water pump, an adjusting mechanism and a connecting pipe, the spray head is connected with the water pump, one end of the connecting pipe is connected with the water pump, and the adjusting mechanism is connected with the other end of the connecting pipe and can drive the connecting pipe to move; the loading unmanned aerial vehicle is provided with a loading mechanism and a pesticide box, the pesticide box is detachably installed on the loading mechanism, and the pesticide box is provided with a bottle opening used for being connected and communicated with one end of the connecting pipe; the spraying unmanned aerial vehicle is connected with one of the loading unmanned aerial vehicles and sprays, and the other loading unmanned aerial vehicle is in a preparation state.

The invention discloses a film pasting method, a film pasting device and a display screen. According to the film pasting method, firstly, an optical film is cut to an optical film unit, the shape of the optical film unit is the same with that of the screen surface, the size of the optical film unit is larger than the size of the screen, and the optical film unit is glued to the screen surface; the cutting path is determined, the screen is placed on the center of the surrounding area of the cutting path, the shape of the surrounding area of the cutting path is the same with that of the screen surface, and the shape size of the surrounding area of the cutting path is the same with that of the screen surface; and finally, the optical film unit is cut along the cutting path, and the part, not glued to the screen, of the optical film unit is removed. Through the flow, it is found that the film pasting method ensures that the optical film unit completely covers the screen surface, and is completely glued to the screen, and the attractiveness degree and safety of the screen are improved.

The invention discloses a steel casting protection device which comprises a protection plate and universal wheels. The protection plate is of a C shape. The two universal wheels are disposed at the bottom of the protection plate. An anti-tilt mechanism is disposed at the bottom of the portion, between the universal wheels, of the protection plate. A feeding mechanism is disposed on one side of theprotection plate. A rotating mechanism is disposed on the feeding mechanism. A storing mechanism is disposed on the rotating mechanism. A buffering mechanism is disposed in the storing mechanism. Thesteel casting protection device has the beneficial effects that the feeding mechanism and the rotating mechanism are disposed, a storing box is placed on the rotating mechanism, a first motor in thefeeding mechanism is started, a threaded rod is driven to rotate, sliders at the two ends of the threaded rod are driven by a threaded sleeve plate to move upwards, and thus the whole rotating mechanism is driven to move upwards; and due to the design, compared with traditional manual carrying for casting, it can be avoided that a casting solution is splashed out in the manual carrying process, result in causing contamination to workers and surrounding environment.

The invention discloses a display device, which comprises a display panel, a display circuit board, a touch circuit board, a support layer, a first heat dissipation layer and a second heat dissipationlayer. A first end of the display circuit board is electrically connected to the display panel. A first end of the touch circuit board is electrically connected to the display panel. The support layer is disposed on the surface of the display panel. The first heat dissipation layer and the second heat dissipation layer are respectively arranged on both sides of the support layer. A second end ofthe display circuit board and a second end of the touch circuit board are respectively arranged on the first heat dissipation layer and the second heat dissipation layer. A connecting piece is also arranged between the first heat dissipation layer and the second heat dissipation layer. According to the invention, since the connecting piece is arranged between the first heat dissipation layer and the second heat dissipation lay, it is further ensured that electrical connection between the display circuit board and the touch circuit board is realized, so that the grounding potential between thedisplay circuit board and the touch circuit board is the same, the situation that the display panel is injured during electrostatic testing is avoided, and the safety is improved.

The invention relates to the technical field of leather cutters, and discloses a leather cutter special for handmade leather. The leather cutter comprises a connecting bracket, a handheld grip is arranged on the upper surface of the connecting bracket, two moving wheels are respectively arranged on the front side surface and the rear side surface of the connecting bracket, and adjusting mechanisms are arranged on the moving wheels; and a connecting block is fixedly connected to the surface of the left side of the handheld grip, a butt joint block is arranged at the front end of the connecting block, a cutting blade is arranged at the left end of the connecting block, a mortise and tenon joint mechanism is arranged at the right end of the cutting blade, and a rapid locking mechanism is arranged on the surface of the rear side of the butt joint block. According to the leather cutter special for the handmade leather, the stability of a worker when the worker cuts the leather through the cutting blade is guaranteed, the situation that the cutting blade shakes is avoided, the leather cutting effect is improved, meanwhile, the situation that the worker is injured by the cutting blade is avoided in the manner, and the cutting safety of the worker is improved.

The invention relates to an electric tool with a separable working head with intelligent identification. The electric tool comprises a driving handle with a power supply part and a controller, and further comprises a motor, a working head, an assembling and disassembling assembly, a sensed element and a sensing element, the motor is arranged in the driving handle, the rotating speed is controlledby the controller, the working head is driven by the motor and detachably arranged on the driving handle in a state of being opposite to the motor, the assembling and disassembling assembly comprisesa limiting part connected with the working head and the motor and a detachably fixed assembling and disassembling part, the sensed element is arranged in the assembling and disassembling assembly fixed to the working head and is prefabricated with parameter information matched with the type of the working head, the sensing element is arranged in the driving handle corresponding to the position ofthe sensed element and used for sensing preset parameters in the sensed element and sending the parameters to the controller, and the controller carries out corresponding program control on the motor.According to the technical scheme, the working head and the driving handle are designed in a split mode, and the same driving handle can be matched with different types of working heads.

The invention provides a device for collecting alveolar lavage fluid, which comprises an intubation tube, wherein a perfusion pipeline and a water absorption pipeline are fixedly inserted in the intubation tube; a sealing membrane is fixedly arranged at the position of the outer side of the intubation tubeclose to the left end; a plugging block is rotatably connected in the intubation tube and positioned in the sealing membrane; a slip ring is slidably inserted in the intubation tube and positioned on the right side of the plugging block; and an ejector rod corresponding to the plugging blockis fixedly connected to the left side of the slip ring. The slip ring and the ejector rod move to the left by rotating a knob, and making the blocking block rotate, so that the sealing membrane is opened, a bronchial tract is blocked, spilling liquid is prevented from overflowing and flowing back during lavage, the utilization rate of lavage liquid and the lavage effect are improved, lavage liquidcan be recovered more completely, and the accuracy of a subsequent lavage liquid detection analysis result is further improved; and by setting the blocking structure to be adjustable, lavage liquid can be better adapted to specific conditions of a patient, and damage to the patient due to excessive blocking is avoided.