47 results about "Inhaled Gas" patented technology

The invention belongs to the technical field of transformers, and discloses an adjustable assembly type transformer which comprises a transformer body, an oil conservator is arranged on the top of the transformer body in a communicating mode, the adjustable assembly type transformer further comprises a supporting assembly, the supporting assembly is fixedly installed on the side portion of the transformer body, and the supporting assembly communicates with the oil conservator. The exhaust through groove of one adapting pipe keeps communicating with the connecting pipe, after the weight of a drying agent in the adapting pipe communicating with the connecting pipe reaches a set value, the magnetic force of the first magnet cannot meet the requirement for adsorption and fixation of the adapting pipe at the moment, and the adapting pipe rotates with the fixing shaft rod as the center shaft; the silica gel desiccant saturated in adsorption rotates to the bottom end of the fixed shell, the next adapting pipe is adsorbed by the first magnet and communicates with the connecting pipe through the exhaust through groove, and therefore sucked gas can be dried through the desiccant in the next adapting pipe, the replacement frequency of the desiccant in the respirator can be reduced in the process, and the replacement efficiency of the desiccant in the respirator is improved. And therefore, the maintenance cost of the respirator is reduced.

The invention relates to the technical field of dust removal and purification, and particularly discloses a dust removal and purification device for a furniture processing workshop, the dust removal and purification device comprises a fixed base, the top of the fixed base is fixedly connected with a supporting frame, and the end, away from the fixed base, of the supporting frame is fixedly connected with a reinforcing frame; the outer side of the dust removal device is fixedly connected with the inner side of the reinforcing frame; the multiple sets of supporting frames are arranged, and the multiple sets of supporting frames are evenly distributed on the fixed base. The dust removal device comprises a purification cylinder, a material taking opening is formed in the outer side of the purification cylinder, an air outlet pipe is communicated with the center position of the bottom of the purification cylinder, the end, away from the purification cylinder, of the air outlet pipe is communicated with an air suction pump, and a filter screen is fixedly connected to the inner wall of the purification cylinder. And an air inlet pipe penetrates through and is fixedly connected to the center of the top of the purification cylinder. The dust removal and purification device for the furniture processing workshop can extinguish sparks, wash and dehydrate sucked gas.

The invention relates to the technical field of medical equipment, in particular to an intelligent breathing machine humidifying device with a self-adaptive adjusting function and a method. The intelligent breathing machine humidifying device comprises a breathing machine main body and a humidifying module, and the humidifying module is arranged on the breathing machine main body; the humidifying module comprises a multi-source sensing module, a preprocessing and calculation rehearsal module, an instant feedback and AI control module, an energy consumption calculation and regulation early warning module and a humidifying and water supplementing module. The multi-source sensing module is used for collecting the temperature, humidity and breathing waveform of inhaled gas at the near end of the airway of a patient in real time. The multi-dimensional data of the patient is collected in real time, the digital twin model is used for predicting the humidification trend, output is dynamically adjusted on the basis, a traditional fixed preset mode is changed through the design, closed-loop self-adaptive adjustment is achieved, strategies such as pulse compensation are combined, the humidification efficiency is optimized, it is ensured that the optimal humidification state continues, and the humidification effect is improved. Therefore, the complication risk is effectively reduced, and the treatment safety and patient comfort are improved.

The utility model relates to the technical field of soil digestion acid supplementation, in particular to a multistage temperature control acid supplementation device which comprises a sealing tank, a tank body and an adjusting unit, and the adjusting unit comprises a liquid inlet pipe, a fixed bin, a right-angle plate, a connecting pipe, an air outlet pipe, an electromagnetic valve, a temperature sensor, a limiting plate, a shielding assembly and a heating assembly. During use, liquid in the sealing tank enters the fixed bin through the first round hole, gas is discharged through the gas outlet pipe, soil is placed in the tank body, the heating assembly is used for heating, the temperature sensor monitors the temperature in the tank body and transmits the temperature to the controller, the air cylinder on one side of the fixed bin is started, the electromagnetic valve is opened, and the right-angle plate is abutted to move rightwards; when the right-angle plate pushes the liquid to be discharged from the connecting pipe, the liquid inlet pipe can be closed, the second round hole sucks gas through the pressure difference to assist the connecting pipe in discharging the liquid, the liquid is quantitatively conveyed in the mode, the time cost is reduced, and the digestion complexity is reduced.

The utility model discloses a sucker structure with return fixing rings, which comprises a sucker base, the top end of the sucker base is fixedly communicated with a sucker top shell, the top end of the sucker top shell is fixedly communicated with a vent pipe, a connecting component is mounted in the vent pipe, and four return fixing blocks arranged in a rectangular shape are fixedly mounted at the bottom end of the inner wall of the sucker base. The connecting assembly comprises a connecting sleeve and three silica gel blocks, one side of each silica gel block is fixedly connected with the outer side of the connecting sleeve, and each of the four return fixing blocks comprises an assembling rubber block and a return fixing rubber block. The external vacuum pump adsorbs gas in the suction cup base in a vacuum mode through the pipeline, so that the suction cup base has adsorbability, the return fixing block clamps and fixes the suction cup from the outer side of the adsorption position, the stability of the suction cup after adsorption and fixation is improved, the phenomenon that the suction cup and the adsorption position are loosened is avoided, and the suction cup adsorption cost is reduced.

The utility model discloses an external breathing assembly for controlling inhaled air according to a breathing state. The external breathing assembly comprises a detection control unit and a breathing unit, the detection control unit comprises a breathing sensor, a switching valve and a control module, and the breathing sensor is used for detecting the expiration or inspiration state in the breathing unit; the switching valve is connected with the breathing unit, the switching valve is further provided with an air supply connector used for being externally connected with an air supply unit, and the control module is in communication connection with the breathing sensor and the switching valve and used for controlling the switching valve to act according to the expiration or inspiration state detected by the breathing sensor; by means of the external breathing assembly, the effects of providing gas during inspiration and stopping providing gas during expiration are achieved, various gas inspiration systems can control gas inspiration according to the breathing state, universal applicability is achieved, waste of effective gas is reduced, and the device is particularly suitable for existing atomizers, oxygen inhalation devices and the like.

The application discloses a kind of based on multi-mode ultrasound and image respiratory detection method and water pipe type respiratory detection device, method includes: calibration respiratory detection device, ensure that the liquid level and negative pressure in device are normal;According to the indication, exhale detection is carried out, inhaled gas enters liquid seal passage by air inlet pipe, is discharged by air outlet pipe after passing through liquid, and the gas and liquid data in device are collected, the gas and liquid data in device are stored and transmitted to cloud background;According to the indication, inhale detection is carried out, air enters liquid seal passage by air inlet pipe, is inhaled into the body of subject by air outlet pipe after passing through liquid, and the gas and liquid data in device are collected, the gas and liquid data in device are stored and transmitted to cloud background;Respiratory detection parameter is obtained using the gas and liquid data in device, and respiratory function is evaluated according to respiratory detection parameter.The application provides a kind of high-precision, high reliability, anti-interference, easy maintenance respiratory detection device and method.

This product is a mask that is worn around the nose of a pet when the pet inhales gases containing hydrogen, oxygen, etc.

The invention discloses a multi-mode animal exposure device and method based on aerosol contamination, and relates to the technical field of biomedical experimental equipment. The device comprises an aerosol generating device, a breath exposure cabin and an exhaled air collecting device, the aerosol generating device comprises a gas source, a dispersed phase generating device and a mixing chamber which are connected in sequence; the breathing exposure cabin comprises an experimental animal fixing device; the breathing decoupling tube comprises a three-way tube internally provided with a one-way valve, the air inlet end is communicated with the mixing chamber, the breathing end is communicated with the respiratory tract of the experimental animal, and the air outlet end is communicated with an exhaled air collecting device. A dispersed phase output by a dispersed phase generating device and gas output by a gas source in the device can form aerosol with uniform properties in a mixing chamber, exhaled gas and inspired gas in a respiration decoupling pipe respectively flow through different gas passages, decoupling of inspiration and exhaling is realized, mutual interference between the two processes can be reduced, and the stability of the device is improved. And the result of the breathing exposure experiment is more accurate.

The utility model discloses a gas pipeline safety checking device, which comprises a checking detector, the top end of the checking detector is connected with a metal hose, the end part of the metal hose is fixedly connected with a gas suction sensor head, the end part of the gas suction sensor head is provided with a detachable filtering anti-blocking mechanism, and the detachable filtering anti-blocking mechanism is fixedly connected with the metal hose. An adsorption storage mechanism is arranged between the metal hose and the troubleshooting detector; the detachable filtering anti-blocking mechanism comprises a filtering assembly and a dismounting assembly; through the designed filter screen, the connecting groove and the connecting block, air sucked into the sensor head can be filtered, meanwhile, the designed guide groove, the designed guide block, the designed clamping groove, the designed clamping buckle and the designed locking rod are matched, the filter screen can be rapidly disassembled, assembled and cleaned, and compared with the prior art, the filter screen has the advantages of being convenient to use and high in practicability. And the metal hose of the detector can be effectively prevented from being blocked.

The invention discloses a breathing demisting method, a breathing demister and a breathing demisting system for a normal-pressure container, and belongs to the technical field of industrial waste gas treatment. According to the method, a hydrophobic membrane filter element type demister is arranged at a breathing opening of a container, so that bidirectional gas-liquid separation is realized: when the container exhausts gas, acid-containing entrainment is intercepted, and clean emission is realized; when the container sucks air, moisture in the air is removed, and equipment corrosion is prevented. The breathing demister comprises a shell and a hydrophobic membrane filter element arranged in the shell, and the shell is provided with an air inlet / outlet, a breathing opening and a liquid outlet. According to the system, a breathing demister is connected with a normal-pressure container to form a complete treatment loop. By utilizing the efficient gas-liquid separation characteristic of the hydrophobic membrane, the two problems of unorganized emission pollution and equipment corrosion in the breathing process of the normal-pressure container are solved at one stroke, and the device has the advantages of being compact in structure, free of maintenance, safe and environmentally friendly.

The utility model discloses a pretreatment system for a cutting fluid recovery and separation tank. The pretreatment system comprises a hydrocyclone, a gas-liquid jet mixer and a pipeline type electrolytic reactor which are sequentially connected in series, the hydrocyclone is used for separating the mixed liquid to be treated; the gas-liquid jet mixer sucks gas through the change of the section of a pipe cavity of the main pipe so as to dissolve the gas into a mixed solution to be treated; after being treated by the gas-liquid jet mixer, the mixed liquid carries bubbles, a multi-dimensional electrode effect is formed in an electric field, and the electrolysis mass transfer efficiency is higher, so that when the mixed liquid penetrates through the pipeline type electrolysis reactor, a better oxidation sterilization effect is achieved, a larger gas-liquid ratio and more uniform micro-nano bubbles are provided for subsequent air flotation separation, and the separation efficiency is improved. Finer impurities can be adhered and separated, so that defoaming treatment is not needed.

The invention relates to the technical field of underground cooling appliances, in particular to a portable cooling device and method for a high-temperature and high-humidity environment, the portable cooling device comprises a main structural part and a breathing mask, and the breathing mask is attached to the face; the main structural part comprises a shell, a refrigerant bin used for storing a refrigerant is arranged in the shell, and the refrigerant bin cools the breathing mask when the breathing mask inhales air; the device adopts a physical phase change cooling principle and does not need to be driven by an external power supply; by accurately regulating and controlling the temperature and humidity environment of the breathing area, the heat stress response of the human body is effectively relieved, and the risk of airway mucosa hyperemia and edema is reduced. The device is light and portable in structure, and is provided with a special thermal insulation layer and a bearing system without influencing the flexibility of underground operation. According to the scheme, installation is easy and convenient, the maintenance cost is low, complex engineering investment is not needed, a safe, economical and efficient dehumidification and cooling solution is provided for deep well high-temperature and high-humidity environment operation, and important practical value and wide application prospects are achieved.

The application belongs to the technical field of mushroom storage, and discloses a three-dimensional storage device for Agaricus bisporus stacking, which comprises a base, a plurality of storage boxes fixedly arranged on the inner wall of the base, and ventilation pipes installed on one side of the storage boxes. In use, the sealing cover is removed from the outer surface of the flow guide pipe by rotating it, the external power switch of the driving motor is turned on, the fan blades and the plurality of mixing plates are rotated, the storage boxes are ventilated, the inhaled gas reaches the inside of the treatment pipe through the flow guide pipe, activated carbon is added to the inside of the treatment pipe, the two mixing plates are in the inside of the treatment pipe, and the activated carbon and the inhaled gas in the inside of the treatment pipe are fully mixed together when the two mixing plates rotate, so that the activated carbon fully adsorbs the harmful substances in the gas, thereby treating the discharged gas when the Agaricus bisporus is ventilated, and preventing the surrounding environment from being polluted.

The present invention belongs to the technical field of medical devices, and discloses a fully automatic liquid transfer device for blood coagulation test, including a driving device, a suction mechanism is connected to the upper front surface of the driving device, a tube-taking mechanism is fixedly connected to the lower surface of the suction mechanism, and a base is fixedly connected to the lower front surface of the driving device. The present invention moves the suction mechanism downward so that the lower end of the pipette is located inside the air inlet pipe, but does not contact the fixed hole or the pipette. When the suction pump is working, air enters the air inlet pipe, the air inlet cavity, and the suction pipe from the gap between the pipette and the fixed hole, and is finally discharged from the exhaust pipe. The inhaled gas will drive the liquid remaining on the outer surface of the bottom end of the pipette to follow the flow or drip, thereby cleaning the liquid remaining on the outer surface of the bottom end of the pipette, thereby solving the problem that the bottom end of the outer surface of the existing pipette will have residual solution, and the residual liquid will enter at the same time during injection, reducing the accuracy of the test.

The utility model relates to the technical field of heating ventilation air conditioners, in particular to a heating ventilation air conditioner air inlet mechanism which comprises a shell, bent connecting pipes and an installation frame, the bent connecting pipes are installed at output ports in the two ends of the top of the shell through screws, and a suction fan is installed at one end in each bent connecting pipe through an installation net plate. A solar power bank facilitating power generation is mounted at the top of the shell and located on one side of the bent connecting pipe through screws; a filter element plate is stored in the shell, the filter element plate is composed of an activated carbon filter element and a non-woven fabric wrapping layer, the non-woven fabric wrapping layer is arranged on the outer surface layer of the activated carbon filter element, a sealing frame plate is installed on one side of the shell through positioning bolts, and a temperature and humidity sensor is installed at the bottom of the shell through screws; the air inlet mechanism of the heating ventilation air conditioner does not occupy the machine body space of the outdoor air conditioner, the air inlet mechanism of the outdoor air conditioner is convenient to mount and dismount, sucked air is convenient to purify, and cleanliness of indoor air is guaranteed.

The invention relates to a carbon emission monitoring device, and discloses a gas collection device in a carbon emission monitoring process, the device comprises a shell and an upper cover, and a hanging assembly is arranged on the side surface of the shell; a gas cylinder assembly is arranged in the shell and comprises a vertically-arranged gas cylinder, and a plugging valve used for plugging a gas inlet is arranged at the gas inlet of the gas cylinder. The upper cover is provided with an air inlet assembly, and the air inlet assembly comprises a communicating air inlet pipe which can extend into the air inlet and is used for opening the plugging valve; a piston assembly used for sucking air into the gas cylinder through a communicating gas inlet pipe is arranged in the gas cylinder, and a driving assembly used for driving the piston assembly is arranged in the shell and located at the bottoms of the multiple cavities. Through integrated design, air at all positions of the subway station can be actively collected, and the device can be flexibly arranged in different scenes, is flexible to use and convenient to install, and can realize collection of a plurality of samples according to needs.

The application discloses an implantable breathing assisting device, which comprises fixed magnetic sheets and moving magnetic sheets matched with each other, and an auxiliary air bag, when in an expiration phase, the fixed magnetic sheets and the moving magnetic sheets repel each other, the lung body contracts to exhale gas, and sterile gas in the auxiliary air bag is retracted to form an air bag between the lung body and a thoracic cavity; when in an inspiration phase, the fixed magnetic sheets and the moving magnetic sheets attract each other, the lung body expands to inhale gas, and the sterile gas in the auxiliary air bag gathers to form an air bubble at a lung tip of the lung body, the application can obviously improve lung ventilation and lung gas exchange functions, improve lung breathing, and can be used for treatment of most current lung diseases causing respiratory insufficiency, especially chronic obstructive pulmonary diseases and respiratory related infectious diseases, and even patients needing long-term use of a breathing machine to assist breathing, and is also suitable for patients with respiratory insufficiency caused by other diseases.

The invention discloses an implantable respiration assisting device which comprises a fixed magnetic sheet and a movable magnetic sheet which are matched with each other and further comprises an auxiliary air bag, when the device is in an expiration phase, the fixed magnetic sheet and the movable magnetic sheet repel each other, a lung body contracts to exhale air, and sterile air in the auxiliary air bag retracts to the position between the lung body and the thorax to form an air bag; when the auxiliary air bag is in the inspiration phase, the fixed magnetic sheet and the movable magnetic sheet attract each other, the lung body expands to inhale air, and sterile air in the auxiliary air bag gathers to the lung tip of the lung body to form bubbles. The breathing machine can be used for treating respiratory insufficiency caused by most lung diseases at present, especially chronic obstructive lung diseases and respiratory-related infectious diseases, even patients needing to use a breathing machine to assist breathing for a long time, and is also suitable for patients with respiratory insufficiency caused by other diseases.

The application discloses a kind of pneumatic composite rotary body stripping device, it is related to stripping equipment forming technical field, including mounting seat, and stripping assembly is installed on mounting seat, stripping assembly includes air drive module, action module and stripping unit, stripping unit includes oppositely arranged upper clamping element and lower clamping element, and upper clamping element and lower clamping element are used for installing rotary body finished product and core mould between upper clamping element and lower clamping element, upper clamping element and lower clamping element can limit rotary body finished product axially, action module is located in the side of upper clamping element, and action module can push core mould and rotary body finished product occur axial relative movement, air drive module is used to be in stripping process and be inhaled gas between rotary body finished product and core mould.The stripping efficiency of the present application is high, and the damage of mould and product will not be caused.

The invention relates to the field of air conditioning, in particular to a station air conditioning device of a character carving machine, which comprises an air inlet pipe used for introducing waste gas exhausted during operation of the character carving machine; the feeding pipe is used for introducing waste or chippings generated during operation of the character carving machine and is connected with the bottom of the air inlet pipe; the filtering mechanism is used for filtering the waste materials and the chippings; the ventilation mechanism is used for remotely conveying and processing the sucked gas; urea and oxalic acid are placed in the Z-shaped frame, the Z-shaped frame and formaldehyde in waste gas are subjected to condensation polymerization reaction, the Z-shaped frame is fixedly installed in the gas inlet pipe, the first retention plate and the second retention plate divide the Z-shaped frame into three cavities, and the station air conditioning device of the character carving machine is divided into the gas inlet pipe and a feeding pipe through pipelines. And therefore, the effects of classifying, ventilating and adjusting the chippings or peculiar smells which are generated in the lettering process of the lettering machine and influence the working environment are achieved.

The invention discloses medicine pumping equipment, a control method and device thereof and a storage medium, the medicine pumping equipment comprises an instruction reading module, a driving module and a bubble detection module, and the method comprises the steps that a medicine configuration instruction is obtained through the instruction reading module; controlling a driving module to drive a medicine extraction device to execute medicine extraction operation according to the medicine configuration instruction; in the process that the medicine extraction equipment executes the medicine extraction operation, the gas suction amount of the medicine extraction equipment is monitored through the bubble detection module, and after the gas suction amount is larger than the sucked gas safety threshold value, the medicine extraction equipment is controlled to stop the medicine extraction operation. Therefore, starting and stopping of medicine extraction operation are accurately controlled based on the medicine configuration instruction and the gas suction amount of the medicine extraction equipment, manual medicine extraction operation is replaced with automatic mechanical operation, and therefore clinical work efficiency is improved, occupational exposure risks are reduced, and safety of medical staff is ensured.

An exhaled breath component measuring device according to the present disclosure measures a prescribed component in exhaled breath, and comprises: a chamber which is provided with an exhaled breath inlet and an exhaled breath outlet; a gas sensor which is disposed within the chamber; an airflow generating unit which has a first suction port for sucking gas and a first discharge port for discharging the sucked gas, and which generates an airflow having a prescribed flow rate within the chamber, the first suction port communicating with the exhaled breath outlet via a first flow passage; a negative pressure generating unit which has a second suction port for sucking gas and a second discharge port for discharging the sucked gas, and which generates a negative pressure within the chamber, the second suction port communicating with the chamber via a second flow passage; and a first opening and closing unit which controls the opening and closing of the first flow passage and the second flow passage.

The utility model discloses a double-transverse-air-outlet warmer with a ventilation function, and belongs to the technical field of electric appliances. A double-transverse-air-outlet warmer with a ventilation function comprises a box base, a box cover, a first fan, a second fan and a pair of heating devices, the first fan, the second fan and the heating devices are detachably installed in the box base, and the box base is detachably connected with the box cover; a ventilation port is formed in the side part of the box seat, is communicated with the second fan and is used for ventilation; air inlets matched with the first fan and the second fan respectively are formed in the surface of the box cover and are used for sucking air through the first fan and the second fan; hot air ports corresponding to the heating devices in position are formed in the surface of the box cover and used for blowing out hot air after being heated by the heating devices; the heating devices are arranged in the centers of the upper portion and the lower portion of the inner side of the box base respectively and communicate with the first draught fan and the second draught fan through airflow channels, the airflow channels are arc-shaped flow channels with the gradually-expanded sections, the effect of reducing turbulent flow and resistance of airflow in the flow channels is achieved, and hot air is evenly blown out in the low-noise environment.

This product is a mask that is worn around the nose of a pet when the pet inhales gases containing hydrogen, oxygen, etc.

The utility model relates to the field of hydrogen helium mass spectrum leak detection, in particular to a pressure-adjustable suction gun, a suction gun tube is fixed on a holding section through a suction gun adapter, an adapter cavity is arranged in the suction gun adapter, the suction gun tube and a gas tube are arranged in parallel and are communicated with the adapter cavity of the suction gun adapter, a fixing block is arranged in the holding section, and the pressure-adjustable suction gun is arranged in the fixing block. The adjusting rod is fixed after being in sliding fit with the fixing block in the axial direction of the suction gun barrel and is inserted into a barrel cavity of the suction gun barrel after penetrating through the transfer cavity, and the diameter of the adjusting rod is smaller than the inner diameter of the suction gun barrel; a positioning hole is formed in the fixing block in the radial direction, the adjusting rod penetrates through the positioning hole and then enters the adapter cavity, a jackscrew in threaded fit is arranged in the positioning hole of the fixing block, and the adjusting rod is pressed and fixed by the jackscrew. According to the utility model, the pressure of the suction gun can be regulated so as to control the flow of sucked gas.

The present application relates to sewage treatment technical field, provide a kind of variable density self-circulation aerobic granular sludge treatment device, comprising: anoxic tank, micro-oxygen tank, aerobic tank and sedimentation tank are arranged along the flow path of water body, water body acceleration device is arranged in anoxic tank;Return main, the inlet end of return main is provided with sludge return branch pipe that extends into sedimentation tank and / or nitrification liquid return branch pipe that extends into aerobic tank, the outlet end of return main is provided with the first pipe section that extends into anoxic tank and is located in throat pipe;The outlet end of return main is also provided with the second pipe section that extends into anoxic tank and is located outside throat pipe;Air pipe, one end extends into second pipe section, the other end is suitable for being connected with gas source, air pipe is inhaled gas into second pipe section.The device, using the negative pressure effect generated by water inlet jet, the air-lift effect generated by air pipe aeration carries out double drainage, and nitrification liquid and / or sludge return to anoxic tank, it is beneficial to energy saving and environmental protection.

The utility model discloses a coal sample air-permeable drying box which comprises a drying box body and a plurality of box doors connected to the front end of the drying box body, a plurality of air-permeable bins and a negative pressure bin are arranged in the drying box body, the air-permeable bins are communicated with the negative pressure bin, the negative pressure bin is connected with a fan, a plurality of air inlets are formed in the back face of the drying box body, and a plurality of air outlets are formed in the back face of the drying box body. The air inlet is connected with a conveying channel, the conveying channel is connected with a corresponding air penetration bin, a hopper is connected in the air penetration bin, the air inlet is connected with a filter screen used for filtering gas, and the filter screen is connected with a positioning mechanism used for positioning the filter screen. The filter screen can filter and purify impurities in sucked gas, pollution to a coal sample is reduced, the filter screen is convenient to disassemble and assemble, a new filter screen can be replaced or an old filter screen can be cleaned, the filtering effect is guaranteed, operation is flexible and convenient, and practicability is high.

The invention relates to the technical field of gas detection, in particular to an underground gas detection device which comprises a protection box and a gas detector placed in the protection box, a movable groove is formed in the bottom of the protection box, a gas inlet pipe is installed at a gas inlet in the bottom of the gas detector, a gas pump is installed on the inner wall of the gas inlet pipe, and a fixing plate is fixedly connected to the side portion of the gas inlet pipe. The side portion of the fixing plate is fixedly connected to the inner wall of the protection box, the bottom of the air inlet pipe is connected with a filtering mechanism, the bottom of the filtering mechanism is connected with a corrugated pipe, the bottom of the corrugated pipe penetrates through the movable groove and then is fixedly connected with a limiting ring, and a lifting mechanism is arranged in the protection box and connected with the corrugated pipe. And impurities in the sucked gas are removed through the filtering mechanism, so that the technical defects that in the prior art, due to the fact that a large number of dust particles are contained in underground air, an exhaust hole is blocked, and the gas detection operation precision is affected are overcome, and the technical effects that the purity of an extracted gas sample is higher, and the detection effect is better are achieved.

This invention relates to a portable water negative ion generator and a car-mounted water negative ion aromatherapy device. The portable water negative ion generator includes a negative ion water mist generating mechanism, a water supply mechanism, a blower mechanism, and a cup body. The water supply mechanism is located at the top of the cup body, while the water negative ion water mist generating mechanism and the blower mechanism are located inside the cup body for easy carrying. The side of the cup body has an outlet, and the bottom of the cup body has an air inlet channel. The blower mechanism draws in gas through the air inlet channel and carries the negative ion water mist generated by the negative ion water mist generating mechanism, which is then diffused to the outside of the portable water negative ion generator through the outlet of the cup body. This water negative ion generator is compact, easy to carry, and can efficiently generate water negative ions. Water negative ions migrate a long distance in the environment, thus effectively releasing water negative ions into indoor places or vehicles for therapeutic and air purification purposes.