1076results about How to "Ingenious idea" patented technology

The invention belongs to the technical field of fire detection, and discloses a method and a system for artificial intelligence identification, research and judgment of fire alarm, and the method comprises the following steps: carrying out the framing of input video data, converting a video stream into continuous image frames frame by frame, carrying out the timestamp marking of each frame of image, and obtaining a framed image; according to the method, flames are positioned by analyzing red and orange tones of the images, early signs of a fire can be more accurately captured by analyzing flame shapes and diffusion behaviors, the area change rate of flames and smoke in continuous frames can be analyzed, the dynamic change of flame diffusion speed and smoke coverage can be beneficially understood, and the method is suitable for popularization and application. The fire hazard early warning is more timely and accurate, the fire hazard risk level is evaluated according to the flame dynamic model, and the system is allowed to adjust the sensitivity and threshold of the early warning signal according to the real-time data, so that the fire hazard early warning scheme is more targeted and effective, faster response can be provided at the initial stage of the fire hazard, and casualties and property loss are greatly reduced.

The invention discloses an ultrasonic excitation and acid fracturing integrated permeability-increasing coal seam enhanced extraction system which comprises an ultrasonic excitation and acid fracturing integrated drilling and feeding device, an ultrasonic control box and a liquid mixing box, and further discloses an ultrasonic excitation and acid fracturing integrated permeability-increasing coal seam enhanced extraction method. Comprising the following steps: S1, collecting a sample in a coal seam; s2, four extraction drill holes with unequal distances are constructed in the coal seam; s3, gas concentration detection is conducted on the extraction drill hole; s4, an ultrasonic transducer is started, and a fracturing pump is started for fracturing; the ultrasonic transducer is started again; s5, after the step S4 is repeated five times, the fracturing pump is closed, and then the ultrasonic transducer is started; and S6, gas concentration detection is conducted on all the extraction drill holes. The method has the advantages that ultrasonic excitation and the acid fracturing effect are mutually coupled, the pore structure of the coal body is improved, the connectivity of pore fractures is improved, gas desorption is promoted, and the coal seam gas extraction efficiency is improved.

The invention belongs to the technical field of skid adjustment, and discloses a skid supporting leg adjusting device which comprises a plurality of parallel gantry frames arranged at intervals, and a skid conveying mechanism used for conveying a skid is fixedly installed in the middles of the multiple gantry frames. A clamping and positioning mechanism used for clamping and positioning the skid is arranged at the position, close to the middle of the skid conveying mechanism, of the skid conveying mechanism, a plurality of automatic adjusting mechanisms are arranged on the gantry frame, each automatic adjusting mechanism comprises a sliding table installation base, and an electric sliding table is fixedly installed on each sliding table installation base; a vertical pressing assembly is fixedly installed at the moving end of the electric sliding table. According to the supporting leg adjusting device of the skid, the position of the sliding supporting leg on the skid can be automatically adjusted on a production line body.

A pipeline connecting device belongs to the field of pipeline connecting devices and comprises an outer pipe, two inner pipes are rotationally arranged in the outer pipe, a row of multiple sliding rings are arranged in each inner pipe in a sliding mode, every two adjacent sliding rings are connected through an elastic rubber cylinder, and a fixing ring fixed to the outer pipe is arranged between the two inner pipes. The fixing ring is connected with the adjacent sliding rings on the two sides through the elastic rubber barrels respectively, the elastic rubber barrels, the sliding rings and the fixing ring form a fixing barrel, and transverse strip-shaped sliding grooves are formed in the inner wall of the inner pipe respectively. The pipeline connecting device is simple in structure, ingenious in concept, capable of being suitable for connection of pipelines of various sizes, high in applicability, good in sealing effect and easy to operate, multiple independent seals are arranged, multiple seals are formed, the pipelines can be rapidly positioned, clamped and sealed only by screwing the inner pipe to enable the inner pipe to rotate relative to the outer pipe, market requirements can be met, and the pipeline connecting device is suitable for popularization.

The invention belongs to the technical field of ozone disinfection, and discloses a gas-liquid dual-purpose ozone disinfection integrated machine and a method for using the same, wherein the gas-liquid dual-purpose ozone disinfection integrated machine comprises a shell, an inner cavity of the shell is fixedly connected to a mounting plate, an ozone generator is mounted on the mounting plate, four corners of the shell are all arranged in an arc shape and are hinged with connecting plates, a first circular tube is hingedly connected to an end of the connecting plate away from the shell, a second circular tube is movably connected in the first circular tube, a plurality of exhaust holes are provided on the first circular tube and the second circular tube, an active adjustment component for adjusting the positions of the first circular tube and the second circular tube is provided in the inner cavity of the shell, a fixed tube is fixedly connected to the top end of the first circular tube and the bottom end of the second circular tube, a buoyancy active component is provided in the lower fixed tube, the lower side of the shell is movably mounted on a bottom plate, a rotating drive component for driving the shell to rotate is provided on the bottom plate, and a balancing component is provided on the bottom surface of the bottom plate; the invention can realize gas-liquid dual-purpose disinfection operation.

A communication cable connector connecting device comprises an upper semicircular pipe and a lower semicircular pipe, the upper semicircular pipe and the lower semicircular pipe form a transverse pipe, three coaxial annular dovetail sliding grooves are formed in the inner circumference of the transverse pipe, two semicircular dovetail sliding blocks are installed in each annular dovetail sliding groove in a sliding mode, and semicircular rings are fixedly installed on the inner sides of the dovetail sliding blocks respectively. The cable connector is simple in structure and ingenious in conception, a protective shell is formed on the outer side of the cable connector through the upper semicircular pipe and the lower semicircular pipe, the upper semicircular pipe and the lower semicircular pipe can be rapidly connected, self-locking is formed through the fastening force on a cable, and after the cable is fastened, the upper semicircular pipe and the lower semicircular pipe cannot be opened; meanwhile, the fastening rope is used for winding and fastening the cable, the fastening rope can be better attached to the cable, the cable fixing device is suitable for fixing cables of different diameters, opposite pre-tightening tension can be formed at cable joints, the cable joints are well connected, meanwhile, the pre-tightening tension is used for buffering the external tension to the cable, and damage to the cable is reduced.

The invention discloses a clustered electric heating type low-temperature reboiler, and relates to the field of low-temperature liquid heating equipment, the clustered electric heating type low-temperature reboiler comprises a rectifying tower, a plurality of liquid storage cylinders and a plurality of electric heating wire fixing assemblies, the bottom of the rectifying tower is provided with the plurality of liquid storage cylinders, and the plurality of electric heating wire fixing assemblies are detachably connected to the liquid storage cylinders; specifically, the electric heating wire fixing assembly comprises an annular body defined by two semi-annular bodies, the opposite ends of the two semi-annular bodies are hinged together, the other opposite ends of the two semi-annular bodies are connected together in a clamped mode, the annular body is arranged on the first groove of the liquid storage cylinder in a sleeved mode, a cavity is formed in each semi-annular body, and an electric heating wire is arranged in each cavity in a penetrating mode. The reboiler is ingenious in conception and reasonable in layout, the electric heating element is convenient to disassemble and replace through improvement of the electric heating wire fixing assembly, normal and efficient work of the reboiler is guaranteed, and the problem that in the prior art, an electric heater is inconvenient to disassemble when fixedly connected is solved.

The invention belongs to the technical field of transmission shaft conveying devices, and discloses a transmission shaft conveying and feeding device and a using method thereof.The transmission shaft conveying and feeding device comprises a conveying support, the upper surface of the conveying support is gradually heightened from the left side to the right side and forms an inclined face, and a conveying cavity is formed in the middle of the conveying support; a conveying cavity is formed in the conveying support, a movable plate is slidably mounted in the conveying cavity, a left-right moving assembly used for driving the movable plate to horizontally move is mounted in the conveying cavity, an up-down moving assembly is mounted on the upper surface of the movable plate, a transmission shaft bracket is fixedly mounted at the moving end of the up-down moving assembly, and a pushing assembly is arranged on the left side of the conveying support. Transmission shafts can be conveyed and fed, the gliding speed of the transmission shafts is reduced, the transmission shafts are prevented from being impacted in the conveying process, the transmission shafts are stably conveyed, the friction phenomenon between the transmission shafts and other parts is avoided, and the production quality of the transmission shafts is improved.

The invention relates to the technical field of plastic product recovery, and particularly discloses plastic product recovery equipment which comprises a plastic product recovery main body including a feeding main body, a functional main body and a discharging main body, the supporting frame is connected with the plastic product recycling main body and used for bearing the plastic product recycling main body; the driving unit is arranged on the supporting frame and comprises a motor and a power transmission assembly connected with the motor; the functional main body comprises a shell, a crushing cavity communicating with the shell, a grinding cavity communicating with the shell, a re-crushing assembly arranged in the shell and a grinding assembly arranged in the grinding cavity, and the discharging main body communicates with the bottom of the grinding cavity; the re-grinding assembly is used for re-grinding the plastic product through the driving unit; and the grinding assembly comprises a bearing disc and a driving disc, and the bearing disc moves based on the re-grinding assembly, so that the problem that some plastics cannot be reused due to the fact that the crushing degree of traditional plastic product recycling equipment is insufficient is solved.

The invention discloses an operating method for a mesh cage welding fixing frame for autoclaved aerated concrete reinforced plate, which solves the problems that the existing mesh cage welding fixing frame for autoclaved aerated concrete reinforced plate has poor fixing effect and cannot be adjusted and fixed according to different requirements of steel bar distance, which is not conducive to the welding of the mesh cage. The invention comprises a fixing frame body and a clamping mechanism, wherein a base is arranged at the bottom of the fixing frame body, a vertical rod is fixed at the middle of the top of the base, a cross beam is welded at one side of the top of the vertical rod, a plurality of moving blocks are installed on the cross beam through fixing screws, a clamping mechanism is installed at the top of the moving block through a fixing shaft, a lower arc groove is provided in the middle of the top of the moving block, the clamping mechanism comprises a first shaft hole and a second bolt groove, the structure is novel and the conception is ingenious, the mesh cage for autoclaved aerated concrete reinforced plate is convenient to be welded and fixed, and the distance between the steel bars can be adjusted according to welding requirements, which is conducive to use.

The invention relates to the technical field of artificial boards, in particular to a preparation method of a bamboo fragrance board. Comprising the following steps that S1, selected bamboos are peeled, cut and crushed, so that the bamboos are changed into small sections of bamboo fibers; s2, bamboo and wood fibers are put into a treatment tank, and a liquid additive is added into the treatment tank; s3, wood flour and cement are added into the treatment tank, and the bamboo and wood fibers, the wood flour and the cement are evenly mixed to form a mixed base material; s4, the mixed base material is put into a mold for vibration, compaction and cold pressing; therefore, the plate becomes a basic plate; s5, the basic plate is put into a pre-pressing machine to be subjected to pre-pressing treatment; s6, the base plate obtained after prepressing treatment is put into a drying room to be dried; s7, the flatness of the dried basic plate is adjusted; s8, the basic plate with the adjusted flatness is cut and trimmed, so that the required size is achieved; and S9, the surface of the cut basic board is polished, painted and sprayed, and therefore the bamboo fragrance board is manufactured.

The invention belongs to the technical field of visual monitoring, and discloses an intelligent fire-fighting visual platform, which comprises a facility monitoring module, a fire-fighting resource adjustment module, an emergency response module, a combustion rate identification module, a dynamic early warning module and a fire-fighting guidance module. By monitoring the distribution and operation states of the fire-fighting facilities in real time and analyzing the signal intensity and transmission delay, the response speed and efficiency of the intelligent fire-fighting visual platform are effectively improved, the state data of the fire-fighting facilities are updated in time, accurate basis can be provided for optimization of a resource network, a water supply distribution route is adjusted, and the water supply efficiency is improved. By collecting combustion data in real time, analyzing the heat release rate and evaluating the fire behavior risk, the understanding of fire behavior development is enhanced, a scientific basis is provided for fire behavior early warning, in the aspect of personnel evacuation, an evacuation route is adjusted according to a real-time building structure and people flow data, and the safety of personnel evacuation is improved. And a more efficient and safer solution strategy is provided for fire safety.

The invention belongs to the technical field of automobile transmission shaft machining, and discloses a transmission shaft grinding device and a method thereof.The transmission shaft grinding device comprises a base and a sliding seat, a stable clamping assembly is arranged on the base and comprises two sliding tables installed on the base in a sliding mode, and rotating cylinders are rotationally installed above the sliding tables correspondingly; a self-adaptive clamping mechanism used for clamping a transmission shaft to be polished is arranged in the middle of the rotary drum, and a driving assembly used for driving the two sliding tables to move in the direction close to each other or away from each other is arranged at the position, between the two sliding tables, of the base. The sliding seat is fixedly mounted on one side of the base, a first sliding groove is formed in the sliding seat, a polishing and cleaning assembly is slidably mounted in the first sliding groove, a mounting table is fixedly mounted on the side, opposite to the sliding seat, of the base, and a placement assembly is arranged on the mounting table; the transmission shaft grinding device can be suitable for clamping and grinding transmission shafts of different length specifications, and the using effect is improved.

The invention discloses an array type focused laser differential interference measurement system, relates to the technical field of fluid mechanics measurement, and aims to solve the problem of how to improve the FLDI measurement efficiency and ensure the measurement precision at the same time. An emission light path generates multiple paths of light splitting pairs by using a diffractive optical element; a multi-path optical fiber array receiving system is arranged at the tail end of the receiving optical path and comprises a plurality of groups of receiving terminals, each group of receiving terminals comprises a three-dimensional coordinate frame, a photoelectric detector and an optical fiber probe, a rigid connecting rod is fixedly connected to a moving part of the three-dimensional coordinate frame, and the optical fiber probe is fixedly connected with the rigid connecting rod; the positions of the rigid connecting rods of the multiple groups of receiving terminals are respectively adjusted, so that the positions of the receiving ends of the multiple optical fiber probes are respectively in one-to-one correspondence with the final imaging focus positions of the multiple paths of light in the receiving light path; the device is simple in structure and ingenious in conception, the measurement efficiency can be remarkably improved, and meanwhile it can be guaranteed that multiple paths of optical signals are respectively and accurately received, so that the measurement accuracy is guaranteed.

The invention belongs to the technical field of organic fertilizer production wastewater treatment, and discloses an organic fertilizer production wastewater treatment device and a treatment method thereof, wherein the organic fertilizer production wastewater treatment device comprises an installation box, an inclined inclined material plate is fixedly installed in the installation box, a through groove is opened in the middle of the inclined material plate, a filter screen is fixedly installed in the through groove, a vertically arranged telescopic scraper mechanism is arranged above the filter screen, the lower end of the telescopic scraper mechanism contacts the upper surface of the filter screen, a suction port is opened on the bottom of the telescopic scraper mechanism, a driving mechanism for driving the telescopic scraper mechanism to move on the filter screen is arranged on the installation box, a cleaning mechanism is arranged on the installation box, a working end of the cleaning mechanism is connected with the suction port through a pipeline, and the cleaning mechanism is used to generate negative pressure suction at the suction port to perform negative pressure suction on debris on the filter screen; the invention can clean organic fertilizer and debris intercepted on the filter screen to avoid clogging the filter hole.

The utility model relates to the technical field of reactors, in particular to a constant temperature control device based on an amination reactor. Comprising an amination reactor and a jacket wrapping the outer wall of the amination reactor, heat exchange pipes are spirally distributed in the jacket, the top of the jacket is connected with a heater through an oil outlet pipeline, the bottom of the jacket is connected with an outlet of the heater through a circulating pipeline, and a circulating oil pump is arranged on the oil outlet pipeline. The inlet end of the heat exchange pipe is connected with a cooler through a water inlet pipeline; according to the amination reactor, hot oil heated to a certain temperature is circularly conveyed into the jacket by starting the circulating oil pump, so that the temperature in the amination reactor is ensured to be constant; the heat exchange pipe, the cooler, the water inlet pipeline, the water outlet pipeline and other structures are matched for use, so that the heat of released heat can be quickly taken away, the reaction speed is ensured, the product quality is stabilized, and the cooling speed can be increased after the reaction is completed through the matching use with the oil storage tank, the oil discharge pipeline and the like.

The invention discloses a visualized solid propellant high-pressure combustion turbulence device and a using method, and relates to the technical field of solid propellant high-pressure combustion devices.The high-pressure combustion turbulence device comprises a visualized high-pressure combustion chamber, a particle filtering device, an electric heating wire ignition system, a combustion turbulence device body, a flow channel controller and a medicine strip clamp; the medicine strip clamp is used for fixing a solid propellant medicine strip and reducing shaking of the solid propellant medicine strip; gas is introduced into the high-pressure combustion chamber to create different environmental pressures, and after the heating wire ignites the solid propellant, the combustion phenomenon is observed through four visual windows which are perpendicular to one another; the flow channel controller can prevent combustion condensed phase particles carried by airflow generated by the speed-adjustable fan from affecting the observation range of the window, and finally the condensed phase particles are filtered through the particle filtering device to purify internal circulation flowing gas. The device is reasonable in structure, has the characteristics of stability and reliability, and can effectively solve the problem that smoke particles are unfavorable for observation of the combustion phenomenon when the solid propellant is combusted.

A catalyst carrier drying device comprises a box body, one side of the box body is open and provided with a box door in a sliding mode, the box door can seal the box body, a base is arranged in the box body, a plurality of supporting wheels are rotationally arranged on the bottom side of the base, a plurality of layers of dryers are fixedly installed on the inner wall of the box body, moisture discharging holes are formed in the top side of the box body, and moisture discharging fans are fixedly installed at the moisture discharging holes. The device is characterized in that two vertical plates are fixedly installed on the base, two rotating shafts are rotatably installed between the two vertical plates, and two coaxial chain wheels are fixedly installed on the rotating shafts respectively. The catalyst carrier drying device is simple in structure and ingenious in conception, the chain wheels and the chains are driven by the driving mechanism to rotate, the placing tables rotate to the positions suitable for operators to take and place catalyst carriers, the catalyst carriers are placed on the placing tables layer by layer, the problem that the catalyst carriers are inconvenient to take and place is solved, the catalyst carriers can be evenly dried, stacking is not needed, and the drying efficiency is improved. And market requirements can be met.

The utility model belongs to the technical field of bundling machines, and discloses a traction device for a bundling machine, which comprises a traction beam, a sunken connecting piece is fixed at the front end of the traction beam, a suspension beam is mounted on the sunken connecting piece through a bidirectional connecting piece, and two ends of the suspension beam are respectively provided with a suspension component. The sinking type connecting piece comprises a fixing sleeve, a sinking inclined pipe and a sinking transverse frame which are sequentially arranged, the fixing sleeve is fixed to the front end of the traction beam, the sinking inclined pipe is arranged downwards in an inclined mode, the upper end of the sinking inclined pipe and the fixing sleeve are fixed together, the sinking transverse frame is fixed to the lower end of the sinking inclined pipe, and a two-way connecting piece is fixedly installed on the sinking transverse frame. The bidirectional connecting piece is fixedly mounted on the suspension beam; according to the utility model, the extension sinking type connecting piece and the suspension assembly installed at multiple positions are adopted, so that the problem that the traction device possibly collides with the transmission shaft in the lifting process is solved, and meanwhile, the suspension device is suitable for suspension connection of tractors with different models and sizes.

The invention provides a lifting rod device which comprises a fixing frame used for being fixed to a wall. The lifting rod is mounted on the fixed frame in a vertical sliding manner; the one-way damping structure is arranged between the fixing frame and the lifting rod, and when the lifting rod is driven to slide upwards relative to the fixing frame, the one-way damping structure does not provide a damping effect on sliding of the lifting rod; when the lifting rod is driven to slide downwards relative to the fixing frame, the one-way damping structure provides a damping effect on sliding of the lifting rod; after the driving force for driving the lifting rod is removed, the damping force provided by the one-way damping structure enables the lifting rod to keep still. According to the lifting rod device, on the basis that stepless adjustment can be achieved, the lifting rod can be pushed upwards in a labor-saving mode.

The utility model discloses an automobile brake caliper support casting mold which comprises a mold cavity, a casting cavity is arranged in the mold cavity, vertical pouring gates are arranged on the two sides of the casting cavity, the upper ends of the vertical pouring gates are connected with second transverse pouring gates, the upper ends of the second transverse pouring gates are connected with pouring cups, and the lower ends of the second transverse pouring gates are connected with second transverse pouring gates. According to the casting mold for the automobile brake caliper support, the situation that molten iron turbulent flow sand washing is caused when molten iron is poured into a casting can be effectively reduced, and the appearance quality and the internal quality of the casting are improved.

A kiln tail powder coarse and fine screening device of a rotary kiln comprises a fixing plate, an inner cylinder is rotationally installed on the fixing plate, an outer cylinder is sleeved on the periphery of the inner cylinder, the outer cylinder is fixedly installed on the fixing plate, a plurality of supporting seats are fixedly installed on the bottom side of the outer cylinder, the heights of the supporting seats are sequentially reduced from left to right, and a feeding pipe is arranged on the fixing plate in a communicating mode. The device is simple in structure and ingenious in conception, materials can be conveyed without a negative pressure pump, the first spiral blade and the second spiral blade can rotate to convey the materials to the first discharging port and the second discharging port, and when the first spiral blade rotates, large and small particles mixed together can be turned over through friction force, so that the small particles penetrate through the sieve holes, and the material conveying efficiency is improved. And when the powder is screened, the first spiral blade and the second spiral blade rotate to scrape powder adhered to the inner wall and the outer wall of the inner barrel and the inner wall of the outer barrel, the market requirement is met, and the powder screening device is suitable for being popularized.

A spring testing machine comprises a base arranged at the bottom, a fixing block arranged at the top end of the base, a tension sensor installed above the fixing block and hooks installed at the bottom end of the tension sensor and the top end of the fixing block, and further comprises an adjusting mechanism and a protection mechanism. A protection mechanism is mounted on one side of the adjusting mechanism; the adjusting mechanism comprises a shell, a guide hole and a lifting beam, the shell is fixed to one end of the base, a lead screw is installed in the middle of the shell, two guide columns are symmetrically fixed to the two sides of the lead screw, a servo motor is installed at one end of the lead screw, lifting blocks are installed on the lead screw and the guide columns, and screw holes are formed in the positions, corresponding to the lead screw, of the lifting blocks. The spring tensile experiment device is novel in structure, ingenious in conception and easy and convenient to operate, a tensile experiment can be conveniently carried out on a spring, the arranged protective cover can protect the spring when the spring is subjected to the tensile experiment, and the spring tensile experiment device is beneficial to being used in the spring experiment.

The universal coupling protection device comprises an intermediate shaft arranged in the middle and connecting fork heads installed at the two ends of the intermediate shaft through cross shafts, and further comprises a protection assembly, and the protection assembly is arranged in the middle of the intermediate shaft; the protection assembly comprises a bearing bush, a fastening bolt, a guide hole and a shaft hole, the bearing bush is installed in the middle of the middle shaft, a bearing bush seat is arranged at the bottom end of the bearing bush, first connecting blocks are arranged on the two sides of the bottom end of the bearing bush seat, supporting rods are installed on the first connecting blocks through first rotating shafts, and moving blocks are installed at the bottom ends of the supporting rods through second rotating shafts. The universal coupling is novel in structure, ingenious in conception and capable of supporting the intermediate shaft, keeping balance of the intermediate shaft and conducting buffering balance on the height and the inclination angle of the intermediate shaft, and can prevent the intermediate shaft from swinging easily along with rotation of the connecting fork head when a cross shaft of the running universal coupling is broken, so that the service life of the intermediate shaft is prolonged. And finally, the equipment is damaged and even operators are harmed.

A grooving device for flange machining comprises a base, a machining frame is fixedly mounted on the base through a plurality of supporting legs, and a grooving mechanism for grooving a flange is arranged on the machining frame, and is characterized in that the machining frame is a hollow cylindrical box body, a feeding port is formed in one side of the machining frame, and a material guiding frame is arranged on one side of the feeding port; a discharging port is formed in the other side of the machining frame, a coaxial material conveying disc is rotationally installed in the machining frame, one side of the material conveying disc is fixedly connected with an output shaft of a first motor, and a plurality of arc-shaped containing grooves are evenly formed in the circumference of the material conveying disc. The flange grooving machine is simple in structure and ingenious in conception, the flange can automatically enter the containing groove only by placing the flange on the material guiding frame and rotating the material conveying disc to enable the containing groove to be aligned with the feeding port, manual repeated operation is not needed, meanwhile, double-face grooving of the flange can be achieved, actual requirements can be met, and the flange grooving machine is suitable for popularization.

The utility model relates to the technical field of foundation settlement monitoring, and particularly discloses a settlement monitoring device after highway soft foundation construction, which comprises a bottom plate deeply buried in a soft foundation and a connecting part fixedly connected on the bottom plate, the connecting part comprises a fixed rod and an observation rod, the observation rod penetrates out of the soft foundation and a pavement on the soft foundation to be fixedly connected with the observation rod, and the fixed rod is fixedly connected with the observation rod. A sleeve for preventing the observation rod from inclining is arranged on the pavement; a detection column is arranged at the free end of the connecting part, a telescopic assembly is arranged in the detection column, a laser range finder is arranged at the free end of the telescopic assembly, the laser range finder is used for measuring the distance to a paved road surface, and the problem that the short-term settlement amount of a traditional settlement plate cannot be observed is solved.

A water supply and drainage engineering pipeline connecting device belongs to the technical field of building outer pipes and comprises an outer pipe, second flanges are arranged at the two ends of the outer pipe respectively, an inner pipe is sleeved with the outer pipe, a first flange is arranged at one end of the inner pipe, a plurality of connecting holes are formed in the first flange and the second flanges, and a rubber ring is fixedly installed at the other end of the inner pipe. A hollow cavity is formed among the rubber ring, the inner pipe and the outer pipe, the waterproof cloth is fixedly installed in the inner pipe, the waterproof cloth is cylindrical, and the middle of the waterproof cloth is tensioned. The waterproof cloth is simple in structure and ingenious in conception, the waterproof cloth has cloth flexibility, when the waterproof cloth is impacted by water, buffering and damping can be conducted, impact during falling can be reduced, and therefore noise is reduced, the waterproof cloth can deform after being impacted, and dirt is not prone to being attached to the surface; the middle of the waterproof cloth is tensioned to be rectangular, so that the flowing speed of water flowing along the inner surface is smaller when the water passes through, noise is further reduced, in addition, the hollow cavity can block noise transmission, actual requirements can be met, and the waterproof cloth is suitable for popularization.

The utility model relates to the technical field of detectors, and particularly discloses an infrared detector, which comprises a wall-mounted infrared detector body and an upper wall assembly detachably connected with the wall-mounted infrared detector body. The upper wall assembly comprises a mounting frame for mounting the upper wall, a groove formed in the mounting frame and used for being connected with the wall-mounted infrared detector body, and bandage assemblies arranged at the two ends of the mounting frame; according to the wall-mounted infrared detector, the problem that a traditional wall-mounted infrared detector is not suitable for all wall-mounted environments due to the fact that the traditional wall-mounted infrared detector is lack of a positioner is solved.

The invention discloses a rotary kiln with self-cleaning capability, and relates to the technical field of rotary kilns, through cooperative arrangement of a kiln body, a transposition structure, a first telescopic cylinder, a first plugging plate, a second telescopic cylinder, a second plugging plate, a mounting frame, a fire spraying structure and a water spraying structure, the rotary kiln has the self-cleaning capability, and the cleaning effect on rings formed on the inner wall of the kiln body is greatly improved; during cleaning, the fire spraying structure and the water spraying structure are located in the kiln body, the fire spraying structure firstly operates and enables the temperature of the formed ring on the inner wall of the kiln body to rapidly rise, the water spraying structure then operates to spray high-pressure water jet to the formed ring on the inner wall of the kiln body, the formed ring on the inner wall of the kiln body is impacted, the temperature rapidly drops, and the formed ring is rapidly cooled, so that the surface of the formed ring of the kiln body cracks. Meanwhile, the surface pressure of the formed ring of the kiln body is also increased, so that the deterioration degree of the formed ring of the kiln body is intensified, the formed ring of the kiln body falls under the high-pressure impact force of the water body, meanwhile, the high-pressure water is suddenly vaporized under the high-temperature state to generate strong explosion, and the formed ring on the inner wall of the kiln body is impacted, crushed and collapsed.

A descaling device of an evaporative cooler comprises a box body, a plurality of heat exchange coils are fixedly installed in the box body, each heat exchange coil comprises a straight pipe and a bent pipe, a spraying device for spraying cold water to the heat exchange coils is arranged on the upper side in the box body, two drain outlets are formed in the bottom of the box body, and an air inlet and an air outlet are sequentially formed in the two sides of the box body. The heat exchanger is characterized in that an installation plate is movably arranged in the box body, a plurality of through holes are formed in the portion, corresponding to the straight pipe portion of the heat exchange coil pipe, of the installation plate, and annular scrapers are arranged in the through holes respectively. The water scale removing device is simple in structure and ingenious in conception, the annular scraper is driven by the driving device to move to remove water scale on the surface of the heat exchange coil, manual scraping is not needed, time and labor are saved, work of a cooler is not affected during scraping, working efficiency is improved, environmental pollution and corrosion to the heat exchange coil are avoided, market requirements can be met, and the water scale removing device is suitable for popularization.