52results about How to "Avoid noise pollution" patented technology

The invention relates to the technical field of nondestructive testing, and particularly discloses a detection and positioning method and system for foaming defects of a sandwich foaming board, and the detection and positioning method comprises the following steps: S1, equipment preparation and environment control; s2, data acquisition: comprehensively scanning the sandwich panel by using an infrared thermal imager, and recording temperature distribution data; s3, performing normalization processing on the infrared thermal imaging and electromagnetic induction data, extracting key features such as temperature gradient from the infrared thermal imaging data, and extracting key features such as electromagnetic induction intensity change from the electromagnetic induction data; s4, establishing a sandwich foam board defect identification and classification model, and training a neural network model by using the data of the sandwich foam board marked with defects; and S5, inputting the preprocessed data into the trained sandwich foam board defect identification and classification model. The advanced thermal infrared imager is combined with the electromagnetic induction technology, and the deep learning model is used for intelligent identification and classification, so that the detection precision is improved, and good adaptability and real-time performance are achieved.

The invention relates to the technical field of traffic management, and particularly discloses a traffic monitoring system based on machine vision, and the system comprises a partitioning module which is used for determining a target building in a preset monitoring region, and determining an initial region according to the position of the target building; the processing module is used for determining the vehicle density in the initial area and determining the congestion radius according to the vehicle density; determining a theoretical center according to the position of the vehicle in the crowding radius, and correcting the crowding radius according to the theoretical center to obtain a standard radius; drawing a curve of the standard radius changing along with time, calculating a target radius and determining a target area; and the prompting module is used for determining a fork road closest to the boundary of the target area on the to-be-determined route and sending early warning information when the vehicle arrives at the fork road. The driving route of the vehicle can be prompted according to the vehicle density, and noise pollution caused by too high vehicle density is avoided.

The invention relates to the technical field of aerosol monitoring, in particular to a multichannel pipeline aerosol continuous monitoring system. Comprising a sampling module, a measuring module and a control module which are sequentially communicated and connected through gas channels, the system further comprises a data processing module. Wherein the sampling module is used for sampling to-be-detected gas from a pipeline; the measuring module is used for measuring the radioactive activity and the concentration of aerosol of the sampled to-be-measured gas sample; the control module is used for performing on-off control on the gas circulation process in the sampling and measuring process; and the data processing module is used for setting parameters involved in the gas aerosol continuous monitoring process, processing the data and displaying the monitoring data. According to the multi-channel system designed by the invention, the air inlet does not need to be manually replaced to the to-be-detected pipeline, so that the cost is reduced, the contact between people and radioactive aerosol is avoided, and the safety of operators is ensured to a great extent.

The invention discloses a vehicle whistling loudness control method and system. Comprising the steps of obtaining a current vehicle speed, and identifying a speed interval of the current vehicle speed as a high-speed interval, a medium-speed interval or a low-speed interval; a whistling loudness interval is matched based on the speed interval so that a driving horn of the vehicle can execute a whistling action in the target whistling loudness interval; wherein the high-speed interval is matched with the first whistling loudness interval, the medium-speed interval is matched with the second whistling loudness interval, and the low-speed interval is matched with the third whistling loudness interval. According to the invention, the whistling loudness interval is matched according to different running speeds. The problem that the whistling loudness of the vehicle cannot be adjusted according to the running speed of the vehicle is solved. When the vehicle runs at a high speed, the whistling loudness of the vehicle is increased to remind pedestrians and the vehicle to pay attention to safety. And when the vehicle runs at a medium-low speed, the whistling loudness of the vehicle is turned down, so that people are prevented from being frightened. According to the control method and system, the whistling loudness of the vehicle is accurately matched with the driving speed, and the driving safety of the vehicle is guaranteed.

The utility model relates to the technical field of vibrating bars, and discloses a concrete construction vibrating bar which comprises a movable base, a winding wheel is fixedly installed in the middle of the top face of the movable base, a beam tube mechanism is fixedly installed on one side of the surface of the winding wheel, and a fixing plate is fixedly installed on the top face of the winding wheel. A hydraulic rod is fixedly installed in the middle of the top face of the fixing plate, grooves are formed in the two sides of the top face of the fixing plate, fixing rods are fixedly arranged in the grooves, the two sides of the fixing rods are symmetrically sleeved with damping mechanisms, and the tops of the damping mechanisms are rotationally connected with connecting blocks. According to the construction vibrating bar for concrete, through the arrangement of the damping mechanism, when the vibrating motor operates to generate vibration, the damping rod is pressed to rotate, the damping spring is extruded to deform, and the hydraulic rod stretches and retracts along with the damping rod, so that the damping effect on the vibrating motor is achieved, and the situation that the service life of the vibrating motor is affected due to long-time vibration is avoided.

The present invention discloses a wing-span type power supply vehicle, comprising a chassis and a body, wherein the body has a body wall for noise reduction, sound absorption and sound insulation, the front and rear parts of the body are respectively provided with an air intake noise reduction system and an air exhaust noise reduction system, and the side of the body is provided with a wing panel that can be deployed and closed. Under the condition of ensuring sufficient air circulation in the body, the noise of the air intake and exhaust air flow and the propagation to the outside of the body caused by the equipment such as the generator set in the body are effectively reduced, and noise pollution to the workplace is avoided, so that the overall mute effect of the power supply vehicle is significantly improved when it is working, and at the same time, it has good air circulation performance. By arranging the wing panels that can be deployed and closed on the side of the body, the removal and overhaul and maintenance of the equipment such as the generator set are greatly facilitated, and the large equipment such as the generator set can be removed without disassembling the body, and the overhaul and maintenance are convenient, efficient, safe, stable and reliable.

The present disclosure provides a kind of cement kiln SCR denitration system with acoustic wave soot blower device, cement kiln SCR denitration system with acoustic wave soot blower device can include: acoustic wave generator and first function structure, acoustic wave generator has acoustic wave output port, acoustic wave generator is configured to at least output first acoustic wave and second acoustic wave by acoustic wave output port, first acoustic wave propagates along first propagation path, second acoustic wave propagates along second propagation path different from first propagation path;First function structure is provided with at least one first function area, first function area is arranged on second propagation path, for interacting with second acoustic wave, to at least generate third acoustic wave of propagation direction change and intensity less than second acoustic wave, third acoustic wave propagates along third propagation path, and first propagation path and third propagation path all pass through first target surface, so that first acoustic wave and third acoustic wave can all act on first target surface, first target surface is the surface where the area to be cleaned or cleaned of slag is located.

The utility model relates to the technical field of variable speed motors, and discloses a direct connection type gear transmission double variable speed motor, which comprises a motor rear cover, a rotor arranged in the motor rear cover, a stator fixedly mounted in the motor rear cover, a motor shaft rotatably mounted in the motor rear cover, a first bearing arranged on the outer side of the motor shaft, and a second bearing arranged on the outer side of the motor shaft. A first-stage gearbox is fixedly installed on the outer side of the motor rear cover. According to the direct connection type gear transmission double-speed-change motor, transmission and speed change modes are achieved through the gears, during mincing work, speed change is achieved through the first-stage gear, meanwhile, rotation of the cutter set is controlled through the second-stage gear, meat cutting work is normal, machine power can be effectively improved, noise of the machine is reduced, and noise pollution is avoided; the four-corner locking nut can be effectively prevented from loosening during operation, the stability during work is improved, the spring can also play a buffering role, the influence of external impact on system parts is reduced, and therefore the service life of the four-corner locking nut is prolonged.

The utility model provides a spiral squeezing device for camellia oil processing, which comprises a spiral hopper mechanism, a spiral squeezing mechanism, a squeezing screw shaft, a driving belt pulley and a belt, the spiral hopper mechanism is fixedly provided with the spiral squeezing mechanism and the squeezing screw shaft, the spiral squeezing shaft of the spiral hopper mechanism is fixedly connected with the driving belt pulley, and the belt is fixedly connected with the spiral squeezing mechanism. The driving belt pulley is connected with the spiral hopper mechanism through the belt; an innovative spiral extrusion conveying mechanism is adopted, and a traditional feeding mode depending on stirring and vibration is abandoned. According to the design, materials are efficiently pushed through spiral feeding, the feeding efficiency is greatly improved, the feeding process is completely controlled, and blocking is effectively avoided. Meanwhile, the mechanism is stable in operation and free of noise, the comfort degree of the operation environment is greatly improved, and long-term stable operation of equipment is guaranteed.

The utility model discloses a repelling robot which comprises a robot walking platform, a functional platform is installed on the robot walking platform, a human body recognition system and a strong sound repelling device are installed on the functional platform, and the robot walking platform is a six-wheel non-independent suspension robot walking platform. The human body recognition system comprises an image acquisition unit and an image processing unit, the image acquisition unit comprises a holder, a visible light camera and an infrared camera which act synchronously are arranged on the holder in parallel, and the focal length and the view field of the visible light camera are the same as those of the infrared camera; and the image processing unit comprises an artificial intelligence processor with graphic processing capability and deep learning capability. The repelling robot can overcome camouflage and interference, quickly judge whether people needing to be repelled exist in the current environment or not and give out strong sound to the people needing to be repelled, and has the advantages of being high in patrol speed, high in recognition rate and the like.

The invention provides a gas concentration detection system, which comprises a laser module used for providing temperature, generating a modulation signal and outputting a light beam with a specific wavelength; the photoelectric conversion module is used for collecting a signal generated after the light beam passes through the gas absorption cell and is absorbed by the to-be-detected gas; the signal processing module is used for demodulating a second harmonic signal according to the signal collected by the photoelectric conversion module; aiming at the fact that a large amount of noise is introduced into a generated modulation signal in subsequent steps in gas concentration detection, a subtraction average optimizer algorithm is adopted to optimize a VMD parameter [K, alpha], the accuracy of signal decomposition is improved, a wavelet soft threshold method is combined to carry out noise reduction processing on a noise-containing modal component, and a pure modal component after noise reduction is reconstructed, so that the accuracy of signal decomposition is improved. And obtaining the second harmonic signal after noise reduction. According to the method, the subtraction average optimizer algorithm is introduced to optimize the VMD parameters, and the wavelet threshold denoising method is combined, so that the problems of inaccuracy and serious loss of signal details due to manual parameter selection in the prior art are solved.

The present invention provides an air source heat pump unit system capable of efficient heat exchange and noise reduction, comprising an installation platform, an exhaust duct, a sound barrier wall, an air source heat pump and a fan. A placement plane is provided at the top of the installation platform. An air passage is provided in the installation platform. The exhaust duct is fixed on the placement plane, has a cylinder cavity with an open top, and is provided with a sealed cylinder cover. The sound barrier wall is fixed on the placement plane and is arranged around the exhaust duct, and an annular isolation cavity is formed between the sound barrier wall and the exhaust duct. There are multiple air source heat pumps, each of which is arranged in an annular isolation cavity around the axis of the exhaust duct in an annular interval, and each air source heat pump has an air outlet connected to the cylinder cavity, and has an air inlet. The fan is arranged in the cylinder cavity, and can transport the gas derived from each air outlet to each air passage. The air source heat pump unit system capable of efficient heat exchange and noise reduction provided by the present invention can eliminate noise, avoid the cold island effect, ensure the heat exchange effect, and ensure the heating effect.

The utility model relates to the technical field of bag-type dust collectors, and discloses a bag-type dust collector assembly convenient to assemble, which comprises a bag-type dust collector shell, a connecting plate is in threaded connection with the interior of the bag-type dust collector shell, a plurality of connecting ports are formed in the connecting plate, dust collecting bags are inserted into the connecting ports, and the connecting ports are connected with the dust collecting bags. Limiting holes are formed in the two sides of the surface of the connecting opening, and mounting mechanisms are inserted into the limiting holes. According to the bag-type dust collector assembly convenient to assemble, through the arrangement of the mounting mechanism, during mounting, a dust collection bag is inserted into a connecting opening, so that a positioning hole formed in the surface of the dust collection bag is aligned with a limiting hole, then a stretched plug pin is loosened, and the plug pin is driven to return to the initial position under the reverse acting force provided by a supporting spring; and the bolts are inserted into the positioning holes and the limiting holes until the bolts are inserted into the positioning holes and the limiting holes, so that the effect of quickly mounting and dismounting the dust collecting cloth bag is achieved, and the mounting efficiency of mounting personnel is improved.

The utility model provides a protective enclosure for protecting an ancient tree, which belongs to the technical field of protective enclosures, aims to solve the problems that audio continuously played by a loudspeaker not only aggravates noise pollution, but also easily makes tourists feel irritable and influences the touring experience of the tourists, and comprises a positioning base, the two fence bodies are perpendicularly and fixedly connected to the outer side of the top end face of the positioning base. The two movable brackets are respectively arranged at the upper ends of the two fence main bodies in a sliding manner; the mounting auxiliary mechanism is arranged on the inner side of the positioning base; the two connecting supporting plates are fixedly connected to the outer sides of the upper ends of the two fence bodies correspondingly. An audible and visual alarm is arranged on the top end face of the connecting supporting plate. The automatic alarm mechanism is arranged between the audible and visual alarm and the movable bracket on the same side; the protection effect on the ancient tree is guaranteed, meanwhile, noise pollution caused by continuous playing of the loudspeaker is greatly avoided, the touring experience of tourists is further improved, and the use effect and flexibility of the protection fence in the actual application process are further improved.

The embodiment of the invention provides an air conditioner, a control method and device of the air conditioner and a computer readable storage medium, the air conditioner control method is used for controlling the air conditioner, the air conditioner comprises a fan module and a shock-proof supporting module, the fan module comprises fan blades and a fan motor used for driving the fan blades to rotate, and the shock-proof supporting module is used for supporting the fan blades. The shock-proof supporting module is movably connected with or separated from the fan motor. The air conditioner control method comprises the steps that whether the fan motor has a resonance risk or not is determined; and in response to determining that the fan motor has the resonance risk, controlling the shock-proof supporting module to be connected with the fan motor so as to change the vibration frequency of the fan motor.

The invention relates to the technical field of diesel generators, in particular to an energy-saving container type diesel generator set applied to a top-mounted split water tank, which comprises a container body, acoustic panels are arranged on the inner walls of the container body, a base is fixedly connected to the inner wall of the bottom end of the container body, and four groups of transverse plates are fixedly connected to the top end of the base. Damping mechanisms are evenly arranged at the top end of the transverse plate and in the mounting plate, a circulating water tank is arranged at the top end of the mounting plate, one end of the base is fixedly connected with a wind frame, and energy-saving mechanisms are arranged at the two ends of the container body and used for cooling a diesel engine and a generator body. And cooling mechanisms are arranged in the circulating water tank and the air frame. The device is very good in noise reduction effect, capable of effectively avoiding noise pollution, not limited by the adaptive environment and low in limitation, meanwhile, a proper cooling mode can be selected according to the external environment, and therefore energy consumption can be reduced, and meanwhile noise reduction can be achieved.

The utility model discloses a metallurgical raw material cleaning mechanism for metallurgical engineering, which comprises a cleaning cylinder, a water tank is fixedly mounted at the lower end of the cleaning cylinder, and a water inlet pipe is fixedly welded on one side of the water tank. Water flow can flush raw materials in the cleaning cylinder through the circulating pipeline, sewage flows back to the water tank after being filtered, water resources can be recycled conveniently, and the sewage recycled in the water tank can be replaced by connecting a water inlet pipe with a water source and rotating a dismantling bolt. After raw materials are cleaned, the raw materials are discharged from the discharging port, fall to the buffer plate and roll into the skip car along the buffer plate, the raw materials are conveniently collected, noise reduction can be conducted on falling of the raw materials through the design of the sound insulation layer and the buffer plate, large noise pollution caused by direct falling of the raw materials into the skip car is prevented, the skip car and the wheels are driven to move by pulling the handle, and the raw materials are conveniently collected. Raw materials can be conveniently moved and transported.

The invention relates to a vehicle control method and device, electronic equipment, a storage medium and a vehicle, and relates to the field of vehicles, the method comprises the following steps: determining a sound field area and a mute area of a prompt area of the vehicle according to a relative position between a target object and the vehicle; the target object is located in the sound field area; a plurality of loudspeakers of the vehicle are controlled to output corresponding prompt audios; the amplitude of the audio after the prompt audios output by the plurality of loudspeakers are superposed in the sound field area is not 0, and the amplitude of the audio after the prompt audios output by the plurality of loudspeakers are superposed in the mute area is 0. Therefore, directional emission of sound can be realized.

The utility model discloses a mold base plate for a corrosion-resistant large mold, and relates to the technical field of mold equipment. The mold base plate comprises a mold base plate body, an anti-corrosion frame body is fixedly arranged on the outer side surface of the mold base plate body, a supporting sliding plate is arranged in the mold base plate body in a sliding mode, cushioning assemblies are arranged between the lower surface of the supporting sliding plate and the inner surface of the mold base plate body, a sliding groove is formed in the upper surface of the supporting sliding plate, and the supporting sliding plate is arranged in the sliding groove. A sliding groove is formed in the middle of the supporting sliding plate, a sliding block is arranged in the sliding groove in a sliding mode, the upper surface of the sliding block is fixedly connected with the lower surface of a vertical plate, a vertical plate is arranged on the supporting sliding plate in a sliding mode, and a groove is formed in the upper surface of the vertical plate. In the production and use process of the mold supporting and clamping device, the situation that equipment makes large noise can be avoided, and therefore noise pollution can be avoided.

The present invention discloses a fast FPC production process with a full dry process, including: using laser to make circuits on an unwound flexible substrate to generate a circuit board; performing AOI testing on the circuit board, and applying a cover film to the tested circuit board; using laser to perform windowing on the circuit board after applying the cover film; performing nickel-gold and reinforcing plate-applying operations on the circuit board after the windowing treatment; and testing the circuit board with the reinforcing plate attached; performing laser drilling and shape cutting on the tested circuit board to generate a finished FPC product; and performing FQC testing on the finished FPC product and packaging. Through the above technical scheme, the present invention provides a new FPC manufacturing method, which can realize the fully automatic production of FPC, and completely eliminates wastewater discharge, avoiding the pollution of the environment by chemical methods.

The application discloses a nine-square-pattern modeling decorative ceiling node, which comprises a main structure, a modeling frame, a decorative assembly and a capping assembly. The main structure comprises a left roof structure and a right roof structure. A plurality of left vertical columns are arranged at the edges of the left roof structure, and a plurality of right vertical columns are arranged at the edges of the right roof structure. A space region formed between two left vertical columns and two right vertical columns is a ceiling. The modeling frame is arranged above the ceiling. The decorative assembly is arranged on the four walls above the ceiling. The ceiling top is sealed by the capping assembly. The construction method comprises the following steps: step one, measurement and line laying; step two, horizontal beam installation; step three, batten frame installation; step four, modeling frame installation; step five, base steel frame installation; step six, decorative plate processing; step seven, decorative plate installation; and step eight, light-transmitting plate installation. The ceiling node has the advantages of seamless, assembly and size and style diversification.

Compared with the prior art, the road operation safety radar early warning system disclosed by the utility model comprises a control host; the vehicle detector is connected with the control host and is used for detecting upstream vehicles; the power amplifier is connected with the control host and used for controlling audio playing; the directional loudspeaker is connected with the power amplifier and is used for directionally playing audios to the upstream; and the power supply is electrically connected with the control host and the power amplifier. Compared with the prior art, the road operation safety radar early warning system provided by the utility model can integrate various wireless communication technologies to connect various early warning devices together so as to achieve timely, safe and effective early warning; on one hand, intruding vehicles can be reminded to pay attention to road conditions, on the other hand, construction workers and the vehicles can be reminded, bidirectional early warning is achieved, the workers can have sufficient time to respond in the accident rescue and road construction process, personal safety is ensured, and the long-distance high-decibel directional horn can effectively remind upstream vehicles, so that the safety of the workers is improved. And noise pollution to the surrounding environment is avoided.

The utility model relates to the technical field of pressure testing mechanisms, in particular to a petrochemical container pressure testing tool which comprises a fixing plate, a pressure sensor is fixedly connected to the surface of the fixing plate, a container body abuts against the surface of the fixing plate, the container body is opposite to the pressure sensor in position, and an electric telescopic rod is installed at the top of the fixing plate. A weight box is fixedly connected to the bottom of the electric telescopic rod, and an iron block abuts against the interior of the weight box. Through cooperative use of a pressure sensor, a weight box, an electric telescopic rod, a bolt, an iron block, a driving motor, a threaded rod, a threaded sleeve and a limiting plate, containers of different sizes can be limited and fixed through the limiting plate, and meanwhile the falling height of the weight box can be adjusted through the electric telescopic rod; the impact force on the surface of the container body can be further adjusted, the practicability and the application range of the testing tool in use are improved, the pressure value can be displayed in time through the display screen, and observation is more visual and clear.

This application relates to the field of scale conversion technology, providing a method and apparatus for spatial scale conversion of land surface temperature. The method includes: acquiring spatially representative target ground stations within a target area; constructing a spatiotemporal continuous trend surface of land surface temperature based on long-term multi-source remote sensing data within the target area; correcting the spatiotemporal continuous trend surface based on land surface temperature observations from the target ground stations to obtain corrected true land surface temperature values; and scaling up the corrected true land surface temperature values ​​to obtain true land surface temperature values ​​at the target resolution scale. The trend surface of this application can represent land surface temperatures with instantaneous changes and has clear spatial texture, thus enabling accurate acquisition of true land surface temperature values ​​at the kilometer-level pixel scale by further combining with spatially representative target ground station land surface temperature observations.

The utility model discloses a Hua-type box-type transformer for wind power generation, which comprises a box body, an expansion assembly is arranged in the box body, a transformer body is arranged on the expansion assembly, a protection assembly is arranged in the expansion assembly and the box body, and a fixing assembly is arranged at one end of the box body. According to the transformer box, the placed box body can be expanded in the transformer using process, so that a plurality of transformers can be better placed, the expanded space can be stored when the transformer box is not used, heat dissipation treatment can be carried out on the transformers placed in the box body in the using process by arranging a protection assembly, and the transformer box is convenient to use. And meanwhile, noise reduction treatment can be conducted in the use process of the transformer, so that noise pollution is avoided, by arranging the fixing assembly, adjustment can be conducted in the transformer containing box according to different installation positions, and therefore installation and containing can be better conducted.

The utility model discloses a washing machine motor structure with a damping function, which comprises a shell and a motor body arranged in the shell, a mounting bolt is mounted on the left side of the shell in a penetrating manner, a positioning rod is fixedly mounted in the shell, and a damping protection mechanism is arranged on the surface of the positioning rod. And the damping protection mechanism slides along the surface of the positioning rod to buffer and protect the motor body. According to the washing machine motor structure with the damping function, the damping hydraulic supporting rod is arranged between the shell and the motor body, when the damping hydraulic supporting rod supports the motor body, after a reset spring conducts buffering, the reset spring can generate reciprocating vibration force, pressure relief is conducted through the damping hydraulic supporting rod at the moment, and the damping hydraulic supporting rod is used for supporting the motor body; and reciprocating vibration of the reset springs is avoided, so that the damping effect can be achieved, the damping function is achieved, the motor body is further protected, and the durability of the device is improved.

The utility model provides a wood board connecting buckle, which relates to the technical field of connecting buckles, and comprises a wooden box, a connecting buckle body is arranged on the inner surface wall of the front side of the wooden box, a dismounting mechanism is arranged on the front side of the connecting buckle body, the dismounting mechanism comprises a first notch, the first notch is formed inside the front side of the connecting buckle body, and a second notch is formed inside the front side of the connecting buckle body. A first spring is arranged in the first notch, and the top of the first spring is connected with a first push block. According to the wooden door connecting buckle, the connecting buckle body is installed and fixed through the bolts, when a wooden door needs to be disassembled independently, the two sets of fixing plates can be pressed at the same time, so that the first push rod is driven to be pulled out of the sleeve and contracted into the first notch, then the sleeve is directly taken down, and the wooden door can be disassembled; in this way, the problem that when the wooden door needs to be disassembled, the wooden door can be disassembled only by disassembling a large number of bolts is solved, and convenience is improved when the wooden door is disassembled.

The utility model discloses a kind of low-noise high-precision stamping board separating die, it is related to stamping board separating technical field, including fixed seat, drive assembly is located at the top of fixed seat, two stamping parts are symmetrically located at the bottom of drive assembly, three fixed vertical boards are equidistantly located at the bottom of fixed seat, pressure-bearing piece is provided with to be stamped plate, pressure-bearing piece is correspondingly provided below stamping part, and is provided between two adjacent fixed vertical boards, noise reduction structure is located between pressure-bearing piece and the bottom of fixed seat, the bottom of drive assembly;Noise in the process of board separating stamping can be reduced by noise reduction structure, avoid noise pollution, ensure the hearing health of operator and smooth communication between operator, ensure work efficiency.

The utility model provides a single-column servo hydraulic machine. The single-column servo hydraulic machine comprises a machine body, an oil cylinder is fixedly connected into the machine body in a sleeved mode, an extrusion plate is fixedly connected to the bottom of the oil cylinder, a machine box is fixedly connected to the side face of the machine body, a supporting plate is fixedly connected into the machine box in a sleeved mode, and an oil pump is fixedly installed at the top of the supporting plate; the front face of the inner wall of the machine box is fixedly connected with a connecting column. According to the single-column servo hydraulic machine, the sound insulation cover is arranged, when a workpiece is compressed, the workpiece is placed under the extrusion plate, and the oil pump is started, so that the oil pump can continuously convey hydraulic oil in the oil tank into the oil cylinder through the conveying pipe; at the moment, the sound insulation cover can isolate noise generated when the oil pump works, so that the problem of noise pollution around a machine body caused by large noise generated when the oil pump works for a long time is avoided, and the noise reduction effect when the hydraulic machine works is improved.

The present invention discloses a humidifier testing device and a testing method thereof, comprising a rotating cylinder, a testing frame, a water storage pipe, a pressing cylinder, a clamping finger cylinder and a power tester; the rotating cylinder is connected to the testing frame, the testing frame comprises a base plate and a gantry, the front of the base plate is provided with a station for placing the base, the water storage pipe is fixed through the base plate and the pipe mouth of the water storage pipe is located on the front side of the base plate, the pressing cylinder is fixed on the crossbeam of the gantry, the clamping finger cylinder is fixed on the base plate and used to clamp the float on the base, the power tester is connected to the control circuit, and the testing method performs corresponding testing steps based on the testing device. It has the following advantages: simplifying the testing steps and improving the testing efficiency.