2742 results about "Water leakage" patented technology

The invention relates to a low-noise water purifier. The water purifier includes a shell, an integrated waterway plate and booster pumps. The integrated waterway plate is fixed to the shell and is connected to water outlets of the booster pumps through pressure stabilizing tanks. The pressure stabilizing tanks are disposed between the booster pumps and the integrated waterway plate. The integrated waterway plate is connected to a plurality of evenly arranged connection tubes and is connected to filter core base assemblies through the connection tubes in a one-one correspondence manner. Beneficial effects of the water purifier are that 1) water knocking abnormal sound of the water purifier is reduced, thus improving user experience, 2) the structure is simple, water leakage is prevented and the production efficiency is high, and 3) replacement of a consumable of the product is simpler and more convenient.

The invention discloses a pipe network water leakage point detection and distance positioning method based on flow analysis. The method comprises the following steps: S1, constructing a flow balance model of a pipeline network; s2, monitoring the flow state of each node of the pipeline network in real time based on the flow balance model constructed in the step S1, and performing preliminary positioning on a leakage point when pipeline leakage is detected; s3, flow gradient analysis and reverse hydraulic fine positioning: in the suspected leakage area locked in the step S2, meter-scale precision positioning of a water leakage point is realized through a flow gradient analysis and reverse hydraulic iterative model; and S4, a plurality of sensor nodes are arranged on the water leakage pipeline determined in the step S3, detection data are collected, the position of a leakage point is determined according to a related positioning fusion algorithm, comprehensive decision making is carried out on the leakage point and the leakage point determined through flow gradient analysis and reverse hydraulic power in the step S3, and finally the accurate position of the pipeline leakage point is judged. The problems of low precision, weak interference resistance and the like of a traditional method can be solved, and accurate detection of leakage points is realized.

The invention relates to the technical field of alpine sand soil moisture leakage estimation technologies, and particularly discloses an alpine sand soil moisture leakage estimation method which comprises the following steps: S1, multi-source data acquisition: acquiring 0-110cm layered soil moisture content and temperature data by using a cold-resistant soil hydrothermal sensor array, and calculating the moisture content and temperature data of the layered soil; synchronously acquiring Sentinel-2 remote sensing data to extract vegetation coverage and land surface temperature, and recording regional freezing and thawing cycle times and biological crust coverage types; s2, key parameter inversion: calculating a permeability coefficient correction factor kFTC = alpha * N (1 / 2) through a multi-expression programming model based on the freezing and thawing cycle number N. According to the method for estimating the soil moisture leakage amount of the high and cold sand land, the limitation of a traditional model based on steady-state water flow and empirical parameters is broken through by quantifying the dynamic effect of freezing and thawing cycles on the porosity of a 30-80 mm soil layer and the water blocking effect of 23.41%-30.39% when the biological crust coverage degree exceeds 30%; and the influence of the low-temperature freezing and thawing cycle and the biological crust on the leakage mechanism of the high and cold sand land is accurately depicted.

The invention relates to the technical field of water supply pipe network monitoring and computers, and discloses a precise water leakage positioning method and system based on water supply pipe network leakage monitoring, and the method comprises the steps: obtaining pipe network time sequence data and a topological structure, and constructing a structured model; performing multi-source data cross validation according to the model, and determining a deviation source node; historical data of the deviation source node are extracted for simulation, and a confirmation result of the leakage event is obtained; analyzing the space-time gradient change of the upstream pipeline flow, and accurately positioning the coordinates of the water leakage point; the water leakage point coordinate enhancement model is fed back, consistency verification is carried out, and accurate coordinates are obtained; and integrating physical details of the pipe network to generate a final positioning result. By establishing a set of intelligent analysis closed loop from data fusion positioning to feedback verification, the problem of insufficient water leakage point positioning accuracy in the prior art is solved.

The invention discloses a tunnel structure water leakage identification method for robot dog detection, and the method comprises the steps: firstly, guaranteeing the safety of an inspection robot dog in photographing a picture through constructing an environment perception algorithm based on the fusion of a laser radar point cloud and a camera laser point cloud; then, mobile shooting is carried out on the water leakage condition of the tunnel structure through inspection mobile robot dog equipment, and data preprocessing is carried out on images; and finally, constructing tunnel internal connection leakage water identification data features, and proposing an improved Yolov8 + HorNet + DASI + CBAM model to identify the missing condition of leakage water. According to the invention, the improved Yolov8 + HorNet + DASI + CBAM model is embedded into the inspection robot capable of carrying the camera, so that the problem that inspection workers are difficult to enter an underground structure is solved, leakage water occurring in an underground complex environment is accurately identified, potential safety hazards caused by leakage water occurring in the underground structure are eliminated, and the operation safety of the underground structure is guaranteed.

The invention relates to the technical field of intelligent detection, and further relates to a non-excavation underground water supply and drainage pipe network leakage detection method based on multi-data fusion. The method comprises the steps that 1, acoustic sensors are arranged along a pipe network at equal intervals, each acoustic sensor collects an acoustic time domain signal generated by pipeline leakage, and then the frequency spectrum intensity of the acoustic time domain signal at the pipeline characteristic frequency is calculated; step 2, calculating a cross-correlation function between two different acoustic sensors according to the frequency spectrum intensity, and determining acoustic delay of the acoustic time domain signal between the different acoustic sensors by searching a peak value position of the cross-correlation function; step 3, according to the acoustic delay, calculating the position of a leakage point by using a sound wave propagation principle; according to the position of the leakage point, the water leakage amount is evaluated in combination with pipeline use data. According to the method, through multi-data fusion and intelligent analysis, effective combination of trenchless, high-sensitivity, accurate positioning and scientific quantitative evaluation is realized.

The invention discloses a vehicle exterior handle waterproof false triggering system and method based on double-frequency-point charging and discharging resonance, and relates to the technical field of automotive electronics. An electrode array composed of capacitance detection electrodes is arranged on the inner side of a vehicle exterior handle to form a vehicle exterior handle capacitance sensor; in a non-interference environment, high-frequency and low-frequency mutual capacitance reference values are collected, and a compensation parameter library is established by associating outer handle shell parameters of the vehicle; a self-capacitance channel of the electrode array is used for detecting proximity signals, high-frequency and low-frequency mutual capacitance signals are collected, and the high-frequency and low-frequency mutual capacitance signals are preprocessed; calling a compensation parameter library to correct the preprocessed high and low frequency mutual capacitance signal, and calculating the mutual capacitance increment and change slope of the high and low frequency mutual capacitance signal; based on the mutual capacitance increment and the change slope, human body touch and water interference are distinguished by analyzing high-frequency and low-frequency signals.

The invention discloses a sampling mechanism for water conservancy sand content detection, and belongs to the technical field of sampling mechanisms, the sampling mechanism comprises a supporting platform and a servo motor mounted at the upper end of the supporting platform, the output end of the servo motor is connected with a sampling barrel, an interception hole is formed in the side edge of the upper end of the sampling barrel, and a water leakage cover is fixed in the sampling barrel; a protective bottom cover is arranged at the bottom of the sampling barrel, a drainage pipe is installed on the protective bottom cover, a first air cylinder is installed at the upper end of the supporting platform, the telescopic end of the first air cylinder is connected with a sealing ring through a guide connecting rod, the sealing ring is used for controlling opening and closing of an interception hole, and sand blocking filter cloth is arranged in a water leakage cover. According to the sampling mechanism for water conservancy sand content detection, when a water body sample is sampled, a surrounding water area to be sampled is conveniently stirred, so that the sand content of the water area is equal, and the accuracy of a subsequent detection result is improved.

The invention relates to the technical field of pipeline water leakage monitoring, and discloses an artificial intelligence leakage distinguishing and positioning method for a municipal water supply and drainage pipe network, and the method comprises the following steps: 1, data collection; 2, analyzing a water leakage detection data model; 3, establishing a leakage point positioning model; step 4, alarm and work order generation; and 5, on-site confirmation and maintenance are carried out. By introducing artificial intelligence and big data technologies, all-day real-time monitoring of a pipe network is realized, the efficiency and accuracy of leakage detection are improved, a leakage point positioning algorithm model is established, accurate positioning of a leakage point is realized, the maintenance time and cost are reduced, and meanwhile, the leakage rate of the pipe network is reduced through real-time monitoring and timely maintenance, so that the maintenance efficiency of the pipe network is improved. The production-marketing ratio and the water-saving rate of a water company are improved, an algorithm model is continuously optimized, and the leakage identification and positioning precision is improved, so that the pipe network monitoring requirements in different scenes and complex geological environments are met.

The invention relates to the technical field of subway tunnel safety detection, in particular to a YOLO-V8 subway tunnel water leakage detection method and system based on an improved Transform. The method comprises the following steps: step 02, acquiring point cloud data of a subway tunnel target section, expanding the point cloud data through projection, generating a two-dimensional water leakage image, and preprocessing the two-dimensional water leakage image; step 04, inputting the preprocessed two-dimensional water leakage image into a pre-trained water leakage detection model, and outputting a detection result based on the water leakage detection model; and 06, according to a detection result output by the water leakage detection model, determining the position and severity of the water leakage disease in the target section of the subway tunnel. According to the method, higher water leakage detection robustness identification precision can be kept in a dark and disordered subway tunnel environment, and the method has a high practical value.

Methods and systems for automatically mitigating risks of water damage to a property caused by insurance-related events are provided. A smart home controller and / or insurance provider remote processor may analyze data received from a smart device disposed on, within, or proximate to a property associated with monitoring water flow, as well as data received from an insurance provider. If it is determined that an actual or potential risk of water leakage exists, the smart home controller or remote processor may automatically issue commands to the smart device to take actions that mitigate the risk of water damage. The smart home controller may transmit information about the actual or potential water leakage risks and any mitigative actions to an insurance provider. The insurance provider remote processor may interpret the transmitted data and perform insurance activities, such as providing a discount or premium, and / or adjusting an insurance policy associated with the property.

The invention relates to the field of curtain walls, in particular to an innovative curtain wall with an expansion joint, through the arrangement of the expansion joint, the function requirement for expansion of building materials is met, and through the arrangement of a connecting assembly, a first stand column, a second stand column, a first expansion piece, a second expansion piece, a third expansion piece and a panel, the expansion joint is hidden on the rear side of the panel; uniformity of vertical faces of the curtain wall is guaranteed, the effect and quality of the curtain wall are improved, and the problems of heat preservation, heat insulation and expansion joint water leakage of an existing curtain wall are solved. By arranging the connecting assembly, the first stand column and the second stand column, the curtain wall structure is more stable. The problems that a curtain wall expansion joint is arranged on an outer vertical face, waterproof is difficult, and attractiveness, heat insulation and waterproof performance of a curtain wall are damaged are solved.

The invention provides a construction method for comprehensive treatment of seepage water of a deformation joint of a subway tunnel. The construction method comprises the steps of pretreatment of a seepage part, grouting and plugging of an inclined hole, reconstruction of a waterproof layer, brushing of waterproof paint, laying of a waterproof roll, installation of a rubber waterstop, reinforcement of embedded steel bars, construction of a waterproof coating film, installation of a drainage box system, recovery of decoration equipment and the like. The method comprises the steps of mechanical cutting, high-pressure cleaning pretreatment, double-liquid alternate grouting plugging, three-layer gradient waterproof layer reconstruction, high-elasticity waterproof coating brushing, self-adhesion type polymer coiled material laying, telescopic rubber waterstop installation, diamond thin-wall drill bar planting reinforcement, multi-layer waterproof coating construction and integration of a stainless steel drainage box system. And a treatment scheme with strong systematicness and excellent waterproof performance is formed. Compared with a traditional method, gradient construction and long-term effectiveness of the waterproof layer are emphasized, the flexibility and sealing performance of the waterproof structure are enhanced, deformation is effectively dealt with, the structure is reinforced, it is ensured that leaked water is effectively discharged, and the service life of the subway tunnel is prolonged.

The invention discloses a road culvert inner wall damage image detection and traffic capacity evaluation method and system, and relates to the technical field of road engineering detection and computer vision, and the method comprises the steps: collecting multi-source data through an annular camera, a laser section scanner and a mileage encoder carried by a detection robot, and carrying out the panoramic expansion and time-space registration; using a multi-scale attention panoramic segmentation network to identify damages such as lining cracks, joint slab staggering, damage and chipping, steel bar exposure and water leakage; calculating the clearance size and the deposition thickness of the culvert by adopting an ellipse fitting method; according to the method, the culvert detection speed reaches 50 m / h, and the damage detection accuracy reaches 89% or above.

The invention discloses a photovoltaic building integrated installation system, which is characterized in that a waterproof support assembly and a transverse guide rail are arranged, and a plurality of photovoltaic units are fixed on the transverse guide rail in a sliding manner; the walking plates are fixed between the photovoltaic units, so that people can walk to maintain the photovoltaic units; the photovoltaic panel is locked and positioned on the supporting plate through an elastic bottom support, a side baffle and a pressing locker on the photovoltaic unit; transverse positioning assemblies are arranged between the adjacent brackets, and transverse moving pushing of the whole photovoltaic unit can be achieved through manual driving. The photovoltaic unit and the roof can be maintained and cleaned by personnel, and permanent damage caused by the fact that a building cannot be repaired is avoided; the photovoltaic panel arranged inside can be flexibly maintained or replaced, and the operation is simple and convenient; the waterproof and drainage design is achieved, rainwater invasion is reduced as much as possible, and due to the fact that the moisture removal performance of the roof provided with the photovoltaic panel is poor, the roof corrosion progress can be reduced through the design, and the house water leakage risk is reduced.

The invention provides a double-control mixing faucet valve element and a faucet, the double-control mixing faucet valve element comprises the following structures: a fixing assembly, the fixing assembly is provided with a water supply channel and a water outlet channel, the double-control mixing faucet valve element further comprises an adjusting assembly, a mounting cavity is formed in the fixing assembly, and the adjusting assembly is provided with a manual control water mixing cavity, an electric control water mixing cavity and a plugging part; the adjusting assembly moves in the mounting cavity, one of the manual control water mixing cavity, the electric control water mixing cavity or the plugging part is selected to be in butt joint with the water supply channel, and the double-control mixing faucet valve element is switched among a manual control mode, an electric control mode and a closing mode. The manual control mode and the electric control mode cannot control water outlet, and the situation that in the prior art, when an electromagnetic valve is damaged, a faucet leaks water is avoided. A plurality of pipe fittings are not needed for connection, the hidden danger of water leakage caused by untight connection of the pipe fittings is avoided, the overall structure is more compact, and meanwhile the complexity of later maintenance is reduced.

The invention discloses a water-leakage-proof pipeline butt joint device, and relates to the related field of drip irrigation pipeline butt joint, the water-leakage-proof pipeline butt joint device comprises a drip irrigation main pipe, butt joints are arranged on the two sides of the drip irrigation main pipe, drip irrigation branch pipes are connected to the outer sides of the butt joints, and butt joints are connected between the butt joints and the branch pipes; sealing sleeves are symmetrically arranged on the two sides of the butt joint device and connected with the sealing grooves in a concave-convex fit mode. Sealing bags are arranged on the inner walls of the left side and the right side of the butt joint device, and the sealing bags are tightly attached to the outer sides of the butt joint head and the branch pipe. When pipeline connection is carried out, the sealing bag is extruded to adaptively fill a tiny gap and an irregular surface at a pipeline joint to form tight fit, the sealing effect is ensured, the sealing sleeve tightly wraps the pipeline joint, the sealing reliability is further enhanced, the leakage risk is reduced, meanwhile, due to the arrangement of the locking block and the inserting groove, the sealing effect is improved, and the sealing effect is improved. And the butt joint stability of the pipelines can be further improved.

The invention belongs to the technical field of kitchen equipment, and discloses a drying water tank. The drying water tank comprises a water tank body, a bowl basket assembly and a drying assembly. The water tank body comprises an air outlet structure. The bowl basket assembly can be arranged in the water tank and can be communicated with the air outlet structure; the drying assembly comprises a drying air path and a heating piece arranged in the drying air path, the drying air path communicates with the air outlet structure, a water leakage hole is formed in the position, below the heating piece, of the bottom face of the drying air path, and at least the bottom end of the windward side of the heating piece is in sealing fit with the drying air path. According to the drying water tank, tableware or kitchen ware in the bowl basket assembly can be dried, water entering the drying air path through the air outlet structure can be drained through the water leakage holes, dryness and cleanliness can be kept easily, and a healthy kitchen environment can be created easily; the water leakage hole is located below the heating piece, and at least the bottom end of the windward side of the heating piece is in sealing fit with the drying air path, so that drying airflow is prevented from being discharged through the water leakage hole, and heat and air loss can be reduced.

The present invention discloses a sampling mechanism for detecting sediment content in water conservancy projects, belonging to the technical field of sampling mechanisms. The present invention comprises a support platform and a servo motor mounted on the upper end of the support platform, wherein the output end of the servo motor is connected to a sampling barrel, a retention hole is formed on the side of the upper end of the sampling barrel, and a water leakage cover is fixed inside the sampling barrel. A protective bottom cover is provided at the bottom of the sampling barrel, and a drain pipe is installed on the protective bottom cover. A first cylinder is mounted on the upper end of the support platform, and the telescopic end of the first cylinder is interconnected by a guide connecting rod and a closed ring, the closed ring is used to control the opening and closing of the retention hole, and a sand filter cloth is provided inside the water leakage cover. When sampling water samples, the sampling mechanism for detecting sediment content in water conservancy projects facilitates stirring of the surrounding water area to be sampled, thereby equalizing the sediment content of the water area and improving the accuracy of subsequent test results.

The invention provides a coal mine roof sandstone water long directional hole and short straight hole combined drainage prevention and control method, and belongs to the technical field of coal mine water disaster prevention and control. The method comprises the following steps: finely exploring geological and hydrogeological conditions, obtaining hydrogeological characteristics of an aquifer, and calculating static reserves and dynamic replenishment; designing and constructing a long directional hole, and determining a track parameter and a drainage amount; short straight holes are designed and constructed, a low-resistance abnormal area is arranged in a densified mode, and the drainage amount and the drawdown are calculated; constructing a multi-objective optimization model, and determining an optimal drilling position combination; partition drainage control is conducted based on the optimization scheme, the drainage speed and flow are dynamically adjusted, and grouting plugging is conducted on the waterless drill hole; the water inflow is monitored, and the drainage effect is judged according to the attenuation rate. Safe and efficient drainage of roof sandstone water is achieved, the mine water disaster risk is effectively reduced, and safe production of a coal mine is guaranteed.

The utility model relates to the technical field of electric energy metering boxes, and discloses an electric energy metering box with a safety protection device, which comprises a box body, the outer wall of the box body is rotatably connected with a sealing cover, the outer wall of the sealing cover is fixedly connected with a lock plate, the outer wall of the lock plate is fixedly connected with a lock catch, and the lock catch is fixedly connected with the safety protection device. A lock head penetrates through the outer wall of the lock catch, a sealing strip is fixedly connected to the outer wall of the sealing cover, an electric energy meter is fixedly connected to the inner wall of the box body, and a sealing assembly is arranged in the box body. According to the electric energy metering box with the safety protection device, a push plate on the box body is covered by a sealing strip, so that the push plate ejects a baffle open, a rotating rod rotates to enable the sealing plate to rotate to block a gap between a sealing cover and the box body, the sealing cover is attached to the sealing plate at the moment, a telescopic clamping block is clamped with a clamping groove, and water leakage is prevented; and the sealing cover can be opened only when the handle is pressed.

The invention provides a water leakage point positioning method and device based on resistance gradient calculation, and the method comprises the steps: obtaining a total resistance value and a tail end resistance value of a water leakage induction rope, and reading a preset resistivity parameter per unit length; calculating the distance of a water leakage point based on the total resistance value, the tail end resistance value and the resistivity parameter per unit length; according to the mapping relation between the length of the induction rope and the physical position established in the installation and debugging stage, the distance of the water leakage point is converted into the physical position described by corresponding 3D coordinates or characters; the physical position information is combined with real-time monitoring data to generate alarm prompt information containing a specific water leakage point location, and the alarm prompt information is output to a monitoring interface, so that accurate positioning of the water leakage point can be realized, the fault response time is remarkably shortened, and through a multi-thread data acquisition and dynamic alarm judgment mechanism, the real-time performance and the alarm accuracy of the system are improved; and the false alarm and repeated alarm frequency is reduced.

The invention relates to the technical field of intelligent operation and maintenance of urban infrastructures, and particularly discloses an underground pipe gallery water leakage detection method and system based on acoustic features and multi-source fusion, and the method comprises the steps: carrying out the feature extraction of acoustic sensor data, and obtaining optimized acoustic features; performing structure optimization and data enhancement on the optimized acoustic features to obtain a water leakage judgment result; performing positioning correction by using a time difference of arrival algorithm and combining the three-dimensional model of the pipe gallery to obtain a water leakage position coordinate; and the intelligent agent autonomously selects a tool combination, and generates an underground pipe gallery water leakage intelligent detection report in combination with information retrieved in the structured knowledge base. According to the main technical scheme and effects, the intelligent agent with a large language model as a core is constructed, and a plurality of special tool modules and a structured knowledge base are cooperatively called, so that efficient, accurate and intelligent management of underground pipe gallery water leakage events is realized.

The invention relates to an outer wall facade self-adhesion waterproof coiled material continuous paving device and method.The outer wall facade self-adhesion waterproof coiled material continuous paving device comprises a guide rail frame, a moving frame, a driving mechanism, a film uncovering roller, a coiled material containing shaft and a rubber rolling roller, and the driving mechanism, the film uncovering roller and the coiled material containing shaft are all installed on the moving frame; the two ends of the rubber grinding roller are installed below the moving frame through the front-back adjusting mechanism, and the moving frame is arranged on the guide rail frame in a sleeving mode and can move up and down along the guide rail frame under driving of the driving mechanism. The film uncovering roller, the coiled material placing shaft and the rubber rolling roller are all horizontally arranged and can rotate around the self axis, the film uncovering roller, the coiled material placing shaft and the rubber rolling roller are sequentially arranged on the rear side of the guide rail frame from top to bottom at intervals, and the driving mechanism is further in transmission connection with the film uncovering roller and drives the film uncovering roller to rotate. The construction speed and construction efficiency of the outer wall facade waterproof coiled material can be improved, the construction quality of the outer wall facade waterproof coiled material is guaranteed, and the later water leakage hidden danger of a basement outer wall is reduced.

The invention provides a water leakage early warning processing method, device and equipment for a remote water meter. The method comprises the following steps: acquiring real-time flow data of the remote water meter; preprocessing the real-time traffic data to obtain processed traffic data; monitoring the processed flow data in real time according to a preset monitoring rule to obtain abnormal condition information; wherein the preset monitoring rule comprises at least one of a data uploading rule, a negative water consumption rule and a threshold alarm rule; wherein the threshold alarm rule comprises at least one of a normal threshold rule, a dynamic threshold rule and a weight threshold rule; performing grading processing on the abnormal condition information to obtain alarm records of different grades; and alarm records of different levels are pushed. According to the scheme, different levels of alarms of various abnormal conditions can be achieved, the abnormal condition of water consumption of the remote water meter can be found in time, water waste is reduced, the problems of false alarm, alarm leakage, alarm lag and the like are avoided, and the abnormal condition of the remote water meter can be found and processed in time.

The invention relates to the technical field of piston pump leaking stoppage, and discloses a flow leaking stoppage device for a piston pump, which comprises a leaking stoppage clamp, the leaking stoppage clamp comprises a first clamp component and a second clamp component which are symmetrically arranged, and the first clamp component and the second clamp component are in a T shape rotating 90 degrees anticlockwise. A vertical pipe and a transverse pipe are clamped in the first clamp component and the second clamp component, inner cavities are formed in the first clamp component and the second clamp component, the inner cavities form a complete closed cavity when the first clamp component and the second clamp component are combined, and a first rubber pad is fixedly connected to the inner ring shell wall of the first clamp component and the inner ring shell wall of the second clamp component. After the inner cavity is filled with cooling water, the leaking stoppage clamp forms a wrapping type cooling clamp, the cooling effect on the pump cavity is achieved, the possibility that the sealing effect is reduced and water leakage is caused due to the fact that the temperature of the pump body is too high and the rubber sealing piece is thermally deformed is reduced, the leakage risk is reduced, and the service life of the piston pump is prolonged.

The invention relates to a rainfall sampler for meteorological monitoring, and belongs to the technical field of rainfall sampling equipment. Comprising a box body, a water pan arranged at the top of the box body, a rotating assembly arranged in the box body and a plurality of sampling bottles arranged on the bottom surface in the box body, and a plurality of first water inlet holes are formed in the top of the box body; the rotating assembly comprises a fixed shaft fixedly connected to the middle in the box body in the vertical direction, a middle rotating disc located above the fixed shaft, a connecting sleeve arranged at the bottom of the middle rotating disc and rotationally connected to the top end of the fixed shaft in a sleeving mode, and a water leakage hole eccentrically formed in the middle rotating disc. The first drainage cylinder is fixedly connected to the bottom of the middle rotating disc and corresponds to the water leakage hole, a gravity rotating mechanism is arranged between the fixing shaft and the connecting sleeve, and the sampling bottles are uniformly distributed around the fixing shaft. According to the invention, the problem that sampling equipment in the prior art needs power supply and is not suitable for a field working environment is solved.

The invention belongs to the technical field of image processing target detection, and particularly relates to a pipeline damage and water leakage detection method and system based on machine vision. Comprising the following steps: S1, acquiring to-be-detected pipeline image data; s2, detecting the to-be-detected pipeline image data through the deep learning YOLOv8s network model to obtain a detection result; s3, judging whether a damaged target exists or not according to a detection result; if yes, skipping to the step S4; if not, detection is carried out through a traditional target detection algorithm; and S4, further analyzing the pipeline damage condition according to the detection result, and outputting the pipeline damage condition to an upper computer for display after encoding. According to the method, the accuracy of deep learning detection and the high recall rate of a traditional algorithm are effectively combined, the accuracy of damage and water leakage detection of the whole pipeline is improved, and the workload of manual inspection is reduced.

The utility model discloses an anti-toppling water leakage kettle cover opening and closing structure which comprises a kettle cover body, and a pull rod assembly and a cover lock assembly are assembled in the kettle cover body. The pull rod assembly comprises a button, a pull rod and a pull rod spring; the pull rod is provided with a first inclined guide surface; the cover lock assembly comprises a cover lock and a cover lock spring. The cover lock is provided with a second inclined guide face and a spring bolt. The cover lock assembly is assembled in the kettle cover body and located on the peripheral side of the pull rod. The side face of the kettle cover body is provided with a through hole for the spring bolt to stretch out. The cover lock spring provides elastic force for the second inclined guide face to be tightly attached to the first inclined guide face, the cover lock moves in the radial direction along with axial movement of the pull rod, and the spring bolt is controlled to move inwards or outwards. The first inclined guide face on the pull rod is matched with the second inclined guide face of the cover lock, axial movement of the pull rod is converted into radial movement of the cover lock, locking and unlocking between the kettle cover body and the kettle body are achieved, the number of parts is small, the structure is simple, and operation is convenient.

The invention discloses a membrane switch performance detection device, and belongs to the field of switch testing, the membrane switch performance detection device comprises a container, a containing cavity formed in the container, a top plate located above the container, and height adjusting assemblies fixedly connected to the two sides of the container and used for driving the top plate to ascend and descend, and heating parts are fixedly connected to the side wall and the bottom wall of the containing cavity; a sensor is fixedly connected to the side wall of the accommodating cavity; the upper end of the top plate is connected with an immersion detection assembly, and the immersion detection assembly comprises a support fixedly connected to the upper end of the top plate, a lead screw with one end rotationally connected with the inner wall of the support and the other end rotationally connected with the upper end of the top plate, and a first motor fixedly connected to the upper end of the support, and an output shaft of the first motor is fixedly connected with one end of the lead screw. According to the scheme, the heating part is arranged in the container to heat the water body in the accommodating cavity, so that the surface tension of the water body is changed, the stress of the sealing element and the water leakage probability of the micro-channel can be changed, a sample is subjected to immersion test in the water body at different temperatures, reliability verification closer to complex working conditions is realized, and customized authentication requirements are met.