174results about How to "Not easy to shift" patented technology

The utility model relates to the technical field of auxiliary clamping tools for chemical product detection, in particular to an auxiliary clamping tool for chemical product detection, which comprises a tool main body and guide grooves, the top end of the tool main body is provided with three groups of guide grooves, and the three groups of guide grooves are annularly distributed at equal intervals; the device has the beneficial effects that a bevel gear rotates reversely to drive a fluted disc, a connecting disc and arc-shaped rails to rotate forwards, three sets of arc-shaped rails rotate reversely to drive three sets of sliding frames to move, the sliding frames slide on the inner sides of a guide groove and the arc-shaped rails, the three sets of sliding frames drive three sets of clamping plates to move, and the three sets of clamping plates clamp chemical product detection reagent bottles; according to the chemical product detection test reagent bottle auxiliary clamping tool, by arranging the three sets of arc-shaped rails, the three sets of sliding frames and the three sets of clamping plates, the auxiliary clamping tool can be adjusted, the auxiliary clamping tool can clamp chemical product detection test reagent bottles of different sizes, and then the safety, efficiency and precision of chemical products in the detection process and the comfort degree of an operator can be improved.

The utility model discloses a stent which is applied to an airway or an esophagus and comprises a framework and a lining film, and the framework is a tubular object which is hollow inside and provided with a mesh structure on the surface; the lining film is attached to the inner surface of the framework, a plurality of protrusions are formed on the outer wall of the lining film, the protrusions penetrate through meshes of the framework to be exposed on the outer side of the framework and are attached to the inner wall of the airway or the esophagus, and a gap is formed between the outer surface of the framework and the inner wall of the airway or the esophagus. The stent provided by the utility model not only solves the defects caused by a mesh structure of a metal bare stent, but also solves the problems that the stent is easy to displace due to low adhesive force between a membrane structure and an airway / esophagus wall, and retention is easy to cause due to the fact that the membrane obstructs the flow of secretions.

The utility model relates to the technical field of medical instruments, and discloses a pulmonary nodule puncture positioning needle. The pulmonary nodule puncture positioning needle comprises an outer tube, an inner tube and a positioning marking assembly, the outer tube is provided with a through channel and comprises a needle tube and a needle tube seat, and the needle tube seat is arranged at the near end of the needle tube; the positioning marking assembly is arranged in the outer tube in a sliding mode, a positioning marker of the positioning marking assembly is made of shape memory materials, the inner tube is arranged in a channel of the outer tube in a penetrating mode and used for pushing the positioning marker, and the positioning marker is in a J-shaped hook shape when stretching out of the needle tube. During operation, the outer tube is inserted into a target position of a focus of a patient, the inner tube is pushed, the inner tube pushes the positioning marker out of a needle point of the puncture needle tube, and after the positioning marker is pushed out of the needle tube, the J-shaped hook is self-expanded and recovered to be a preset J-shaped hook. Resistance is formed between the J-shaped hook and pulmonary parenchyma of a patient, the J-shaped hook is positioned at the pulmonary nodule of the patient, and the J-shaped hook structure is beneficial for a doctor to touch and position in an operation and accurately determine the position of a focus.

The invention belongs to the technical field of lithium battery manufacturing, and particularly relates to a dust removal device for lithium battery manufacturing equipment, which comprises a workbench, the middles of the left and right sides of the upper end surface of the workbench are fixedly connected with frame bodies, the middles of the upper end surfaces of the frame bodies are fixedly connected with a dust collection box, and the middle of the rear end of the dust collection box is communicated with a hose. The front end of the hose communicates with a dust suction pipe, a rotating roller is rotationally arranged in the middle of the adjusting plate, a plurality of second brushes are fixedly connected to the rotating roller, and a self-cleaning transfer type covering mechanism for preventing dust from flying to the periphery is arranged on the workbench. According to the self-cleaning transfer type covering mechanism, when a lithium battery is swept and dedusted, raised dust can be intercepted under the enclosure of a lifting disc, an arc-shaped plate, a first sliding plate and a second sliding plate, so that the dust only flies in a small area, the surrounding environment is prevented from being polluted by the raised dust, and the dust removal efficiency of the lithium battery is improved. And surrounding workers are not influenced.

This application belongs to the field of electronic device technology, specifically relating to a stylus and electronic components. This application aims to solve the problem of low positioning accuracy in related styluses. The stylus and electronic components of this application coordinate the positioning of the stylus through a dual electric field link. The motherboard, a first conductive component, a conductive elastic component, a conductive support, and the pen tip constitute the first electric field link, with the pen tip acting as a transmitter to emit a first electric field signal. The motherboard, a second conductive component, and the electric field transmitter constitute the second electric field link, with the electric field transmitter emitting a second electric field signal. The second electric field signal is radiated onto the touchscreen. The touch chip can calculate the distance between the second and first electric field signals in real time. Based on the calculated distance, it calculates the tilt angle or degree of tilt of the stylus relative to the touchscreen, and then corrects the landing position of the pen tip, further improving the accuracy of the pen tip's position displayed on the touchscreen and making the stylus trajectory less prone to deviation during writing.

The utility model relates to the technical field of pressing equipment, concretely to a type -C product pressing mechanism, mainly including mounting bracket, the top surface of mounting bracket is installed with feeding tray, carries component, assembly component, detection component and unloading component, still include: pressing mechanism, pressing mechanism sets up above mounting bracket, and the pressing mechanism includes the fixed mounting of fixed frame on the top surface of mounting bracket, the top surface fixed mounting of fixed frame has support frame, and the top of support frame is provided with T -shaped piece and fixed block, T -shaped piece one side is provided with pressing head, limiting mechanism, limiting mechanism sets up above mounting bracket, through the opening cylinder, drive mobile strip and mobile block to move, mobile block drive connecting plate to move, connecting plate drive T -shaped piece to rotate certain angle, T -shaped piece drive pressing block and pressing head to rotate certain angle, two pressing heads carry out pressing simultaneously to product shell, need not manual pressing equipment to press the operation of product, guarantee the speed of pressing, to improve the efficiency of whole production.

The application relates to the field of gear machining, in particular to a high-precision gear machining device and process, which comprises a workbench, a clamping fixture, a calibration assembly, a machining assembly and a transmission assembly, the clamping fixture is connected to the end face of the workbench, the transmission assembly is connected to the end face of the workbench, the machining assembly and the calibration assembly are both connected to the driving end of the transmission assembly, the calibration assembly comprises a calibration bench and a calibration table, the calibration bench is connected to the driving end of the transmission assembly, the calibration table is connected to the end face of the calibration bench, and a controller is connected between the calibration table and the transmission assembly; when the flatness of the gear end face measured by the calibration table is less than a preset value, the controller drives the transmission assembly to drive the machining assembly to approach the clamping fixture. In the application, the calibration table and the controller are arranged, separation of defective products and qualified products is realized, a worker does not need to hold a detection device to detect the flatness of the gear end face, the machining steps of gear machining are reduced, the work burden of the worker is reduced, and the machining cost of the gear is reduced.

The utility model relates to the field of plug -in fixture, concretely relates to a manual plug -in device, including carrier, connecting rod structure, guide rail and guide frame, the carrier is used for placing test interface, be equipped with the connecting plate on the carrier, the connecting rod structure includes fixed plate, first rotating plate and second rotating plate, first rotating plate and fixed plate rotatory connection, first rotating plate and second rotating plate rotatory connection, second rotating plate and connecting plate rotatory connection, be equipped with handle on first rotating plate, the carrier is slidably arranged on the guide rail, be equipped with and the guide slot of guide rail corresponding on the guide frame, first rotating plate passes through the guide slot and swings in the guide slot. Through the guide slot on the guide frame and the guide rail respectively to the connecting rod structure and the carrier are oriented and are positioned, so that the connecting structure in connecting rod structure loosens, and the test interface is not easy to deviate when plugging, and then improve the plugging precision.

The invention discloses a leg support for lower limb lifting dressing change and movement, which comprises a leg lifting seat and a foot placing seat, and the leg lifting seat is detachably connected with the foot placing seat. A leg containing groove is formed in the leg lifting seat, an air bag A is arranged on the inner bottom face of the leg containing groove, air bags B are arranged on the two side walls of the leg containing groove respectively, the two sides of the air bag A are fixed to the side edges of the two air bags B respectively, a clamping opening is formed between the two air bags B, an affected leg is clamped and fixed in the clamping opening, the leg lifting seat is provided with an air pump B, and the two air bags B are inflated and deflated through the air pump B; the appearances of the two B airbags expand, and the calibers of clamping openings are reduced; and when the B air pump is deflated, the two B air bags are contracted, and the caliber of the clamping opening is increased. The foot placing seat is provided with a pedal used for ankle pump movement, the pedal is vertically placed and can turn over vertically, a rotating shaft is arranged at the turning connection position of the pedal and the foot placing seat, and the rotating shaft is provided with a torsional spring. The leg support is used for lifting the lower limbs for dressing change, can meet the requirement for ankle pump movement of a patient, and is further suitable for affected legs of different body types.

The utility model discloses a utility tunnel inner pre -buried plate installation positioner, including the two vertical support of affixing in the concrete form outside, the sliding connection of vertical support between multiple horizontal supports, set up at least two locating pin holes on horizontal support, and multiple support bolt passes through locating pin hole and concrete form on horizontal support in proper order, and the pre -buried plate upper end portion limit of concrete form inside, and support bolt one end is welded with pre -buried plate, and the other end is connected with horizontal support. The device stands in the concrete form outside, and the pre -buried plate is placed in the concrete form inside, and after the pre -buried plate upper end portion limit of support bolt, realizes the firm fixing of pre -buried plate and first form and the device through welding etc. The device can realize the quick, accurate positioning of multiple pre -buried plates, is not easy to be disturbed displacement in the concrete pouring process, greatly improves the efficiency of utility tunnel electromechanical installation pre -buried plate installation work, and can be repeatedly used.

The invention discloses a motor air tightness testing device, and solves the problem that a test result can be obtained only through multiple times of detection or time increase due to the fact that existing detection equipment is too long in detection time. The motor air tightness testing device comprises an air tightness tester, a motor positioning assembly used for positioning a testing motor, an inflation pipeline assembly connected with the air tightness tester, and a motor outgoing line ventilation assembly communicated with a motor outgoing line of the testing motor. The air inflation pipeline assembly comprises a first air inflation pipeline connected with an air inlet of the test motor and a second air inflation pipeline connected with the motor outgoing line ventilation assembly, and the first air inflation pipeline and the second air inflation pipeline inflate the test motor in the air tightness test process of the test motor.

The utility model discloses a compression-resistant insulating flame-retardant cable, which relates to the technical field of wires and cables and comprises a first cable core and three second cable cores, the first cable core and the three second cable cores are all arranged in the same inner filling layer, and three first shearing openings distributed in a central symmetry manner are arranged on the inner filling layer. The three first shearing openings are respectively located between two adjacent second cable cores, the inner filling layer is arranged in the outer sheath, the outer sheath is provided with three second shearing openings which are distributed in a central symmetry manner, and the three second shearing openings are respectively arranged opposite to the three first shearing openings; according to the utility model, the inner filling layer and the outer sheath are respectively provided with the first shearing opening and the second shearing opening, so that great convenience is provided for the maintenance of the cable, and when maintenance is needed, a technician can easily shear or rip a corresponding part without damaging the whole cable, thereby greatly shortening the maintenance time and improving the maintenance efficiency. And the maintenance cost is reduced.

The utility model relates to the field of clothing deburring device discloses mothproof and ventilative sweater processing's deburring device, including two fixed plates, two fixed plates are fixed on handheld rod respectively, the below of handheld rod is equipped with connecting block, the bottom surface of connecting block is fixed in two fixed plates, the bottom surface of connecting block detachably installs the brush, the bottom surface of connecting block is equipped with two clamping holes, the top of brush is fixed with two elastic clamping blocks, the clamping hole, elastic clamping block interlock. In the utility model, through the cooperation of fixed plate, handheld rod, connecting block, brush, clamping hole and elastic clamping block, not only provides stable, convenient operation tool for staff, is favorable to the deburring operation of woolen sweater, but also can realize the quick dismounting of brush, improves work efficiency and reduces maintenance cost.

The invention relates to the technical field of medical biological materials, and discloses a mussel mucin-chondroitin sulfate composite hydrogel and a preparation method and application thereof, and the preparation method comprises the following steps: respectively preparing a mussel mucin aqueous solution and a chondroitin sulfate aqueous solution; the mass volume concentration of the mussel mucoprotein aqueous solution is 1%-10%, the mass volume concentration of the chondroitin sulfate aqueous solution is 1%-10%, the mass ratio of the mussel mucoprotein to the chondroitin sulfate is 3: 1-1: 3, the two solutions are mixed and stirred or oscillated under the conditions that the temperature is 4-37 DEG C and the pH value is 7.0-9.0, a cross-linking reaction is conducted, and hydrogel is formed; the cross-linking mode is physical cross-linking, chemical cross-linking or physical-chemical dual cross-linking; according to the invention, excellent tissue adhesion, injectability, self-healing property and biodegradability are realized, cell adhesion and proliferation can be effectively promoted, and the gel is suitable for various medical beauty scenes such as skin filling, wound repairing and anti-aging nursing.

The utility model relates to a handlebar assembly and a bicycle. The handlebar assembly comprises a connecting part and a connecting part, the connecting part comprises a vertical pipe and a front fork, and the vertical pipe is arranged between the handlebar and the front fork; the reinforcing piece is connected with the handlebar and the vertical pipe and / or connected with the handlebar and the front fork; wherein the reinforcing part is tightly arranged between the handlebar and the connecting part, so that a triangular structure is formed by the reinforcing part, the handlebar and the connecting part. According to the handlebar assembly and the bicycle, the reinforcing piece is arranged between the handlebar and the connecting part in a tightened mode, the reinforcing piece, the handlebar and the connecting part form a triangular structure, and the triangular structure has the advantages of being stable, firm and resistant to pressure. Compared with a T-shaped structure formed by the handlebar and the vertical pipe in the prior art, the rigidity between the handlebar and the connecting component can be improved through the triangular structure, even if a rider violently shakes the handlebar in the riding process, displacement of the handlebar and the connecting component is not prone to being caused, and the high-speed riding requirement is met.

The utility model relates to the technical field of shoe midsole, especially to a comfortable midsole, including the midsole matrix of specific contour shape, the midsole matrix includes the upper matrix surface and the lower matrix surface of being located the lower side of upper matrix surface, the first comfort layer is equipped with in the front end of upper matrix surface, the arch support part is integrally formed in the peripheral area of upper matrix surface, the second comfort layer is equipped with in the front end of lower matrix surface, the utility model discloses the purpose lies in, provide a comfortable midsole of giving consideration to support and comfort, the comfortable midsole of adaptation foot bottom form.

The utility model provides an assembly type environment-friendly building wall, which relates to the technical field of building walls and comprises two wallboards, hollow grooves are formed in the top ends of the two wallboards, an insertion block is fixedly mounted on one side of the outer wall of one of the two wallboards, a first insertion groove is formed in one side of the outer wall of one of the two wallboards, and a second insertion groove is formed in the other side of the outer wall of one of the two wallboards. The inner wall of the first slot is provided with a second slot, the outer surface wall of the insertion block is provided with a third slot, and the outer surface wall of one of the two wallboards is provided with an insertion mechanism. When the two wallboards need to be assembled and fixed, the insertion block of one wallboard is inserted into the first slot of the other wallboard, the two wallboards are in butt joint, and the insertion block of the other wallboard is inserted into the second slot of the other wallboard; and the two wallboards are inserted and fixed again through the insertion mechanism, so that the two wallboards are not prone to shaking and shifting, the wallboards are conveniently fixed through bolts and hollow grooves subsequently, the weight of the wallboards is reduced, and the wallboards are convenient to move.

The invention discloses an indoor and outdoor autonomous switching unmanned intelligent agent with a redundant propulsion system and a method, and belongs to the technical field of unmanned aerial vehicles. The indoor and outdoor autonomous switching unmanned intelligent body with the redundant propulsion system comprises an unmanned intelligent body main body, two propulsion rotors are arranged in each auxiliary propeller shell, and a main rotor is arranged in a flight opening; and a high-precision hydraulic turntable is mounted at one end of the auxiliary propeller shell. The problems that an existing multi-rotor unmanned aerial vehicle is difficult to position in an indoor GPS denial environment and poor in maneuverability in a narrow space are solved, the propelling rotors can provide lift force for maintaining the height by calculating the thrust distribution scheme of the propelling rotors, yawing, pitching and rolling moments are synthesized through differential thrust, the flight control right is taken over, and the maneuverability of the multi-rotor unmanned aerial vehicle is improved. An intelligent unmanned platform which can safely, autonomously and continuously operate at an environment boundary and a system state boundary is created, and the intelligent unmanned platform can autonomously fly in indoor and outdoor complex environments and has a fault-tolerant capability.

The present invention relates to a transceiver device comprising: a light emission layer comprising at least one light emitter adapted to generate and emit emission light; the light emitting layer is stacked on the light detection layer, the light detection layer comprises at least one detection unit, the detection unit is configured to receive and detect incident light, and the beam combining layer is arranged on an optical path of the emitted light and the incident light. And is configured to at least partially separate the incident light from the emitted light.

The utility model relates to a kind of incense preparation technical field, disclose a kind of incense equipment of sabina crenata chaff, including operation platform, the upper surface of the operation platform is fixedly connected with support frame, the outer wall of the support frame is fixedly connected with U-shaped block, the outer wall of the U-shaped block is rotatably connected with trapezoidal block, the outer wall of the trapezoidal block is fixedly connected with handle, the outer wall of the trapezoidal block is rotatably connected with arc block, the inside of the arc block is rotatably connected with sliding column, the outer wall of the sliding column is slidably connected with fixed cylinder, the inside of the moving plate is provided with limiting component, the limiting component is used to assist moving plate limit.The utility model in the middle, handle drives trapezoidal block and then drives arc block to drive sliding column, moving plate is driven by sliding column, extrusion column is driven by moving plate, sabina crenata chaff is subjected to enough pressure in mould, reach sabina crenata chaff is subjected to uniform and stable pressure in pressing forming process, avoid the effect that fragrance body appears loose, fracture or deformation.

The utility model provides a flow guide device and an air conditioner with the flow guide device, the flow guide device is arranged at an air supply outlet of a fan, and the flow guide device comprises a flow guide plate and a surrounding plate; the coaming is installed on the fan, on the air supply path of the air supply outlet, the first end of the flow guide plate is connected with the fan, the second end of the flow guide plate inclines towards the central axis of the air supply outlet, the second end of the flow guide plate and the coaming define a flow guide air duct, and the flow guide air duct communicates with the air supply outlet. According to the utility model, the guide plate is arranged at the air supply outlet, so that air can uniformly cover each area of the evaporator when passing through the guide air duct, the problem of insufficient air quantity at the bottom of the original evaporator is effectively solved, and the air field distribution on the windward side of the evaporator is more uniform.

According to the stainless steel socket jacking pipe provided by the invention, the stainless steel ring socket is made of a stainless steel material, so that the corrosion-resistant effect is achieved, and the water pressure of the stainless steel joint reinforced concrete socket pipe is more than one time higher than the water pressure given in the national standard, so that the stainless steel joint reinforced concrete socket pipe can adapt to higher water pressure; the stainless steel ring bellmouth adopts the curved corrugated joint, so that the sealing water pressure resistance of the joint of the pipeline is superior to that of a straight plate socket joint, and the adhesive tape is firmly adhered to a steel plate on the inner wall of the stainless steel ring bellmouth through a strong adhesive, so that the adhesive tape is not easy to turn over and shift in the construction process, and the stability of the adhesive tape is improved; the first wedge-shaped rubber ring and the second wedge-shaped rubber ring are connected with the butt joint of a conical structure in an inserted mode, the water tightness of the joint part is improved, and the sealing performance of the connecting position of the butt joint and the stainless steel ring socket can be further improved through the water swelling rubber strip and the double-component polysulfide sealant. The wooden washer is arranged at the end opening of the butt joint, the cushioning and supporting function can be provided through the wooden washer, the stable using effect is guaranteed, the distortion resistance is improved after construction is completed, and therefore the shock resistance is also improved.

The utility model relates to a withstand voltage test fixture of a fuse seat, which is characterized in that the withstand voltage test fixture comprises an insulating base and an insulating upper cover, the insulating base is provided with a plurality of accommodating grooves for placing the fuse seat, and the accommodating grooves are internally provided with an upper metal sheet and a lower metal sheet which are respectively contacted with an upper contact surface and a lower contact surface of the fuse seat. A metal pressing block used for conducting the upper metal sheets is arranged in the insulating upper cover, the lower metal sheets are connected through conductive pieces, and a positioning mechanism is arranged between the insulating base and the insulating upper cover. By adopting the technical scheme, the efficiency is high, the stability is high, and the test is more accurate; the live wire is connected with the lower metal sheet, the zero wire is connected with the metal pressing block, after the fuse seat is placed in, the insulating upper cover is covered, accurate connection between the insulating base and the insulating upper cover is ensured through the positioning mechanism, stable conduction between the metal pressing block and the upper metal sheet is ensured, operation is simple, and use is convenient. And the insulating base and the insulating upper cover are made of insulating materials, so that the insulating property is strong, and the safety is high.

The invention discloses a preparation method of a carrier plate structure, the carrier plate structure and a semiconductor packaging structure. The preparation method of the support plate structure comprises the following steps: providing a support plate, wherein the support plate is provided with a first surface and a second surface opposite to each other in a first direction; modifying the support plate at a part of positions by using a laser induction process from one side of the support plate in the first direction, so that the support plate is provided with a modified area and a non-modified area, and the sizes of the modified area and the non-modified area in the first direction are equal to the size of the support plate in the first direction; performing etching treatment on the first surface in the modification area to form a first hole section which does not penetrate through the carrier plate; preparing a first conductive structure in the first hole section; performing etching treatment on the second surface in the modification area to form a second hole section communicated with the first hole section; and at least preparing a second conductive structure electrically connected with the first conductive structure into the second hole section.

The embodiment of the utility model provides a light guide column structure and electrical equipment, the light guide column structure comprises a light guide column array, the light guide column array comprises at least two rows of light guide columns which are connected in sequence, and each row of light guide columns is provided with at least one light guide column. The light guide column comprises a light guide column body, a light inlet end and a light outlet end, the light inlet end and the light outlet end are arranged at the two ends of the light guide column body respectively, the light outlet end is connected with electrical equipment, and the light guide column array further comprises a limiting piece in limiting connection with the electrical equipment and used for limiting the light guide column structure when the light guide column structure is installed on the electrical equipment. According to the embodiment, the light guide column array is formed by the at least two rows of light guide columns which are connected in sequence, so that light can be transmitted in a concentrated manner and guided efficiently, and the limiting pieces can ensure the mounting accuracy and stability of the light guide column structure mounted on the electrical equipment, so that the light guide column structure is not easy to shift.

The gearbox support limiting protection device of the waste pipe treatment tearing machine comprises a stand column, an installation shell, an abutting block and a movable extrusion piece, the installation shell is arranged on one side of the top of the stand column, the section of the installation shell is in a groove shape with an opening in the bottom, and the abutting block is arranged in the installation shell in a sliding mode. A movable opening communicated with the interior of the mounting shell is formed in the top of the side, away from the stand column, of the mounting shell, and supporting blocks are symmetrically arranged on the mounting shell on the two sides of the movable opening; the movable extrusion part comprises an extrusion plate, a connecting plate and a pressing block, the extrusion plate and the connecting plate are perpendicular to each other, the section of the extrusion plate and the section of the connecting plate are in a right-angle shape, rotating shafts rotationally connected with the supporting block are arranged on the two sides of the joint of the extrusion plate and the connecting plate correspondingly, and the extrusion plate penetrates through the movable opening to extend into the mounting shell and abuts against the top of the abutting block; the pressing blocks are arranged on the sides, close to the stand columns, of the connecting plates. According to the gearbox support limiting protection device of the waste pipe treatment tearing machine, the position of the support plate is limited and protected, the shaft is not prone to breakage, and safety is high.

This application relates to the field of formaldehyde monitoring and discloses a formaldehyde monitoring and alarm device, including a monitoring device. A connector is located at the top edge of the monitoring device, and an air inlet pipe is installed on the upper surface of the connector. A universal ball joint is fixedly installed on the top side of the monitoring device, and a support rod is movably connected to the outer surface of the universal ball joint. A fixing groove is formed on the upper surface of the support rod, and a movable support rod is movably installed inside the fixing groove. A positioning mechanism is provided at the top of the movable support rod extending to the outside of the support rod for positioning and supporting the air inlet pipe. By setting up the universal ball joint, support rod, and movable support rod, this application can flexibly adjust the height and angle of the air inlet pipe to adapt to the monitoring needs of indoor air environments at different heights, comprehensively covering pollution areas at all levels, and improving monitoring effectiveness and accuracy. For example, it can detect formaldehyde accumulation areas at different heights, such as the middle layer of furniture or near the floor.