85results about How to "Avoid affecting test results" patented technology

The utility model discloses quality detection equipment for medical packaging barrel processing, which comprises a supporting table, a limiting seat is arranged at one end of the supporting table, a clamping assembly is arranged on the limiting seat, a clamping block in the clamping assembly can be subjected to angle adjustment so as to adapt to packaging barrels of different barrel types, and a group of stand columns are mounted at the other end of the supporting table. The clamping blocks are adjustable in angle and can be matched with medical packaging barrels in various shapes such as a cylindrical shape and a conical shape, the problem that traditional equipment cannot be matched with special-shaped barrels is solved, the barrel bodies are effectively prevented from shaking during detection through matching of the adjustable clamping blocks and the limiting seats, the accuracy of detection data is guaranteed, and the detection efficiency is improved. Meanwhile, equipment damage caused by shaking of the barrel body is prevented, the barrel body fixing function and the wall thickness detection function are integrated, fixing and detection work is completed on one piece of equipment, the detection efficiency is improved, and the detection process is simplified.

The invention relates to the technical field of bearing test devices, in particular to a bearing precision life test device and method, and the device comprises a housing, one side of the housing is rotatably provided with a driving shaft, the driving shaft penetrates through the housing and is in transmission connection with a mandrel, one side of the mandrel is fixedly connected with a sleeve, and the inner side of the sleeve is in sliding clamping connection with a bearing to be tested. A bearing clamping mechanism is movably installed between the fixed spring seat and the sleeve, a pressure frame is movably installed on the outer side of the stress bearing cover, a transition frame is fixedly installed on the outer side of the pressure frame, and an axial loading mechanism is fixedly installed between the transition frame and the stress bearing cover. Precision monitoring mechanisms are fixedly installed on the opposite outer sides of the pressure frames. According to the scheme, core data such as radial run-out, axial load and temperature are collected in real time through multi-dimensional monitoring assemblies such as a non-contact eddy current displacement sensor and a pressure sensor, and the precision decline amount can be accurately quantified by combining radial run-out index comparison before and after the test.

The utility model relates to the technical field of machine vision detection platforms, and discloses a multi-station switching machine vision detection platform which comprises a machine base, a driving shaft is fixedly installed at the output end of a motor, one end of the driving shaft extends to the outer surface of the machine base and is rotationally connected with the inner wall of the machine base, and a driving shaft is fixedly installed at one end of the driving shaft. Four sets of anti-skid discharging bases are fixedly installed on the upper surface of the driving shaft, a light supplementing mechanism is fixedly installed on the outer surface of the detection mechanism, and the light supplementing end of the light supplementing mechanism is arranged above the workbench. The second electric push rod on the lower surface of the top plate at one end of the fixing plate is started to push the mounting shell to move up and down, and the light supplementing lamp in the mounting shell moves along with the mounting shell, so that the distance between the light supplementing lamp and materials on the workbench is adjusted, the light supplementing effect is optimal, and the detection requirement of a detection camera is met; the light supplementing effect can be optimized according to the detection requirement, the situation that the detection result is affected by insufficient or too strong illumination is avoided, and the detection accuracy is ensured.

The invention provides a loop resistance tester, and belongs to the technical field of electrical test equipment, the loop resistance tester comprises a host, a test clamp and a wiring plug, the test clamp is connected with the wiring plug through a test wire, the bottom of the host is provided with a storage box, the storage box is internally provided with a storage groove, and the storage groove is internally provided with take-up rollers at left and right intervals; the take-up roller is used for storing the test wire; by arranging the cable winding mechanism and the belt transmission mechanism, when the test clamp is pulled for testing, a cable is pulled out, and a winding roller generates winding force under the action of a torsion spring; when the test is finished, the push plate is pushed to unlock the one-way mechanism, the take-up roller automatically and uniformly winds and recovers the test wire under the combined action of the torsion spring and the belt transmission mechanism, manual winding is not needed, and the storage efficiency and convenience are greatly improved.

This invention discloses a floating object protection mechanism for a photoelectric sand measuring instrument, including a fixed base. A first fixed block is movably installed below the fixed base, and the sand measuring instrument body is installed on the side of the first fixed block away from the fixed base. Second fixed blocks are movably installed at both ends of the first fixed block. In this invention, by setting a rotating rod and movable rods, when the sand measuring instrument body is in use and other floating objects such as aquatic plants affect the test results, a second rotating motor drives the rotating rod to rotate at a preset angle. Subsequently, the two adjacent movable rods on the rotating rod move closer to each other, clamping the floating object. After the movable rods clamp the floating object, the extension of the electric extension rod and the rotation of the rotating rod can clamp the floating object and move it away from the sand measuring instrument body. Through this operation, aquatic plants and other floating objects around the sand measuring instrument body can be cleared.

This utility model provides a pull-out testing fixture with a clamping mechanism, relating to the field of pull-out testing technology. It includes a base, with a rectangular seat fixed to the upper end of the base. Clamping blocks are movably mounted on the four inner walls of the rectangular seat. A driving assembly is located at the lower end of the rectangular seat. The driving assembly includes movably mounted connecting rods and connecting rings. The upper end of each connecting rod is integrally formed with the lower end of a clamping block. The four connecting rods are sleeved with the connecting rings. Each connecting rod has a ramp on its outer surface, and the ramp abuts against the inner wall of the connecting ring. This utility model uses an electric telescopic rod to flexibly raise and lower the connecting rings. After the connecting rings move upwards, they slide from the lower end of the ramp to the upper end, causing each connecting rod to simultaneously move towards the axis of the rectangular seat. This allows the connecting rods to drive each clamping block to move synchronously, clamping the material simultaneously, ensuring uniform force on the material, simplifying the operation process, and improving testing efficiency.

The present disclosure provides a jig and a test device, suitable for testing a chip, the jig comprising: a circuit board suitable for driving the chip to work, the circuit board comprising a first side and a second side opposite to each other; the heat dissipation jig comprises a first heat dissipation part and a second heat dissipation part, the first heat dissipation part and the second heat dissipation part are connected through a heat conduction part, the heat conduction part is suitable for conducting heat to the second heat dissipation part, the first heat dissipation part is located on the first side of the circuit board, the chip is suitable for being placed on the first heat dissipation part, and the second heat dissipation part is located on the second side of the circuit board. The second heat dissipation part is located on the second side of the circuit board. When the jig is applied to a chip test, a good heat dissipation effect is achieved, heat generated by the chip in the test process can be rapidly conducted out, and the situation that the test result is affected or the chip is damaged due to temperature rise caused by heat accumulation is prevented.

The utility model discloses a support for a toy combustion test device and the toy combustion test device, and belongs to the technical field of toy detection equipment. In a toy combustion test, the position and the angle of a toy to be tested are difficult to flexibly and accurately adjust by the existing bracket, and the existing bracket and the existing clamp only can clamp in parallel due to various sizes and shapes of plush toys, so that the multi-angle combustion test requirement cannot be met. The support comprises a mounting base plate, a Y-axis guide rail, a Z-axis guide rail, a horizontal supporting assembly, an oblique angle supporting assembly and the like. The Y-axis guide rail and the Z-axis guide rail can achieve sliding of the sliding block and are matched with the lead screw and the driving motor to conduct accurate position adjustment. The horizontal supporting assembly and the oblique angle supporting assembly are provided with linear guide rails and clamps, and the clamping requirements of toys with different sizes and special shapes can be met. The test device comprises a test box body, a smoke exhaust channel, a combustion spray gun, a bracket and the like, is mainly used for a toy combustion test, and provides stable and flexible support and a good test environment for the test.

The utility model belongs to the technical field of testing, and particularly relates to a steel-plastic geogrid testing clamp tool which comprises a clamp platform, two testing assemblies are symmetrically arranged on the clamp platform, and each testing assembly comprises a clamping assembly and a stabilizing assembly arranged at the bottom of the clamping assembly. The clamping assembly comprises a bottom plate and a clamping mechanism arranged on the bottom plate, a connecting piece is arranged at the bottom of the bottom plate, the connecting piece is connected with the testing machine, the stabilizing assembly comprises a sliding table arranged at the bottom of the bottom plate, and a sliding block matched with the sliding table in a sliding mode is arranged at the bottom of the bottom plate. The two ends of the steel-plastic geogrid can be stably clamped and moved, so that the accuracy of monitoring data is improved, meanwhile, the connecting piece is connected with a testing machine, the use flexibility of the steel-plastic geogrid clamping device is improved, and the steel-plastic geogrid clamping device can be used for multiple machines.

This invention relates to the field of concrete testing, and more particularly to a concrete permeability testing device, comprising an installation table and a platform. The platform is horizontally mounted on top of the installation table, and multiple bases are mounted on the platform. A test mold body is detachably mounted on the top of each base, and a test sample is placed inside the test mold body. The installation table contains a liquid filling structure and a pressurizing structure, both of which are connected and communicate with the bases. This invention utilizes a downward-pressing external threaded ring that engages with an internal threaded ring fixedly mounted on the platform. With the aid of a circumferentially positioned lever on the downward-pressing external threaded ring, the operator only needs to hold the lever and rotate the downward-pressing external threaded ring to quickly and firmly press and fix the test mold onto the top of the base. This replaces the traditional method of tightening multiple bolts individually, greatly simplifying the test mold assembly and disassembly operations, significantly improving testing efficiency, and reducing the labor intensity of the operator.

The present application relates to the technical field of steel strip defect detection, and particularly relates to a cold-rolled stainless steel strip surface defect detection device, which comprises a detection workbench, two groups of deviation prevention assemblies are slidably installed on the detection workbench; a width adjusting assembly is installed on one side of each group of the deviation prevention assemblies; a width adjusting driving assembly is installed on the detection workbench; a steel strip winding assembly is installed on the detection workbench; a steel strip clamping assembly is installed in the steel strip winding assembly; a clamping interval adjusting assembly is installed in the steel strip winding assembly; a clamping driving assembly is installed in the steel strip winding assembly; and a defect detector is fixedly installed in the middle of the detection workbench. The present application can detect the steel strip without completely disassembling the steel roll, thereby reducing the operation and maintenance costs of various devices and improving the detection work efficiency. In addition, the interval between the clamping plate and the deviation prevention wheel can be adjusted, and the present application can be applied to steel strips with various widths, thereby reducing the detection cost.

The invention relates to the technical field of water quality detection, discloses water quality detection equipment for sewage treatment, and aims to solve the problem that waste liquid is splashed to accidentally injure detection personnel when the waste liquid is poured. Through the arrangement of the rotary liquid pouring mechanism, the closed space is defined by the storage bin, the placement piece and the separation blade, and then the cuvette is driven by the placement piece to be inverted in the closed space, so that waste liquid in the cuvette downwards and thoroughly flows into the collection tank under the action of gravity, and the residual cardinal number is reduced to the minimum; and the waste liquid is prevented from splashing to accidentally injure detection personnel.

The invention relates to the technical field of gates, and discloses gate safety detection equipment which comprises a stainless steel sheet metal shell, and a poison explosion detector, a sampling belt conveying system, a poison explosion detection control panel and a certificate identifier which are arranged in the stainless steel sheet metal shell. By optimizing the structural design of the sampling assembly, the sampling belt can make full contact with the surfaces of certificates of different sizes, the trace substance detection requirements of various passing certificates such as identity cards and passports can be met, equipment parameters do not need to be adjusted for different certificates, the adaptation range is wide, and the device is suitable for various public passing scenes.

This utility model relates to the field of environmental monitoring technology and provides a surface water microbial sampler, including a sampling cylinder. A threaded shaft is rotatably connected to the inner wall of the sampling cylinder. Multiple evenly distributed first fixing rings are fixedly sleeved on the outer wall of the sampling cylinder. A second connecting plate is fixedly connected to the outer wall of each first fixing ring. A second fixing ring is fixedly connected to the other end of each second connecting plate, and a sampling bottle is fixedly disposed on the inner wall of each second fixing ring. A sliding groove is formed on the side wall of the sampling cylinder. Multiple evenly distributed sliding plates are slidably connected to the inner wall of the sampling cylinder. Each sliding plate is threadedly connected to the threaded shaft. A first connecting plate is fixedly connected to the outer wall of each sliding plate, and the first connecting plate is slidably connected to the inner wall of the sliding groove. A fixing plate is fixedly connected to the other end of each first connecting plate, and a bottle stopper is fixedly connected to the lower end of the fixing plate. This utility model has the advantage of layered sampling, avoiding the mixing of water samples from different depths from affecting the detection results.

The utility model discloses a hydraulic pump swash plate clamping device which comprises an operation table, the upper surface of the operation table is fixedly connected with a fixing block, the upper surface of the fixing block is movably connected with a left limiting block, and the upper surface of the left limiting block is fixedly connected with a guide rod. The guide rod, the spring, the limiting sleeve, the compression plate, the limiting semi-ring and the button are matched, when the hydraulic pump swash plate is clamped, the compression plate and the limiting semi-ring can rotate and can reset after being pulled to rise under the action of the spring, and the compression plate is rotated when the spring resets; the upper surface of the hydraulic pump swash plate can be primarily clamped and fixed through a pressing plate, the hydraulic pump swash plates with different thicknesses can be clamped, and a limiting semi-ring can be clamped to a threaded rod during clamping and is matched with a button to limit descending of a sleeve; the surface damage caused by overlarge pressure of the upper limiting column on the clamping part of the pressure relief pump swash plate is avoided, and the detection result is not influenced.

The utility model discloses a nanometer gold brucellosis detection device, including the protection box, still including the first groove body and detection component, the first groove body is passed through and is set to the left end of protection box, and the storage box is slidably arranged to the inner wall of first groove body, and the bottom of storage box inner wall is slidably arranged with two clamping plates, and the spring is fixedly connected between the clamping plate and the inner wall of storage box, and the detection box is arranged between the two clamping plates, and the top of protection box inner wall is fixedly connected with two symmetrical ultraviolet disinfection lamp, and the inner wall of protection box is provided with the light reflection coating, and the detection component is arranged in the detection box, the utility model discloses by pulling two clamping plates outward, detection box is put into the clamping plate between, and the spring pushes the clamping plate and clamps the detection box, and then storage box is pushed into the protection box, avoids the interference of external factor to the detection result, and the inside of protection box is disinfected through the opening ultraviolet disinfection lamp, and the reflection of ultraviolet is enhanced by light reflection coating, and the disinfection effect is improved, and the influence of the residual bacteria on the next detection result is avoided.

The utility model relates to a hub testing machine which comprises a rack, a mounting plate is horizontally and fixedly connected to the middle of the inner side of the rack, a first mounting seat is fixedly connected to the top of the mounting plate, a torsion motor is fixedly connected to the top of the first mounting seat, a coupler is fixedly connected to a rotating shaft of the torsion motor, and the coupler is fixedly connected to the rotating shaft of the torsion motor. The output end of the coupler is fixedly connected with a torsion sensor, a clamping mechanism is arranged at the output end of the torsion sensor, a workpiece is detachably arranged on the inner side of the clamping mechanism, the outer side wall of the workpiece is fixedly connected with a transmission gear, and a tensioning mechanism is arranged on the side portion of the clamping mechanism. The tensioning mechanism comprises a tensioning gear. The beneficial effects of the utility model are that through the arrangement of the torsion motor, the clamping mechanism and the servo motor, the hub can be independently tested in different torsion states, the state of the hub can be conveniently observed in real time, the structure is simple, the hub can be conveniently disassembled and assembled, and the test efficiency can be effectively improved.

The utility model discloses glass cement finished product detection equipment, and relates to the technical field of glass cement detection, the glass cement finished product detection equipment comprises a constant temperature and humidity chamber, the upper part of the constant temperature and humidity chamber is rotatably provided with a reciprocating screw rod, one side of the reciprocating screw rod is provided with a driving assembly, and the driving assembly comprises a mounting rack; the mounting frame is fixedly mounted on one side of the upper portion of the constant-temperature and constant-humidity box, a motor is fixedly mounted at the top end of the mounting frame, and one end of the reciprocating lead screw is fixedly mounted at the driving end of the motor. The surface drying time is different due to the fact that the thickness and the width of the strip-shaped glass cement are not consistent due to manual extrusion, the detection result is affected, meanwhile, through mutual cooperation of the springs and the limiting blocks, the containing plate for containing the glass cement can be rapidly assembled and disassembled, and the batch detection efficiency of a production line is remarkably improved.

The utility model discloses a concrete hardness detection device for concrete, which belongs to the technical field of concrete and comprises a detection table, a mounting rack is mounted at the upper end of the detection table, a mounting plate is mounted at the upper end of the mounting rack, and a mounting groove is formed in the bottom end of the mounting plate. According to the device, a to-be-tested concrete slab can be well fixed through the position adjusting mechanism, the concrete slab pressing mechanism can be rapidly and conveniently disassembled or fixedly installed through the installation fixing mechanism, and when the concrete slab pressing mechanism is used for a long time, the limiting effect is reduced or the concrete slab pressing mechanism is damaged; the concrete slab pressing mechanism can be replaced, so that the concrete slab pressing mechanism can keep a good limiting effect, the situation that the detection effect is affected due to displacement of a concrete slab during working is avoided, meanwhile, installation and replacement are convenient, and certain time can be saved.

The invention discloses environment-friendly sampling equipment for atmospheric pollution, which comprises a base and a workbench, the workbench is arranged at the upper end of the base, universal wheels are fixedly connected to four corners of the lower side of the base, and a sampling mechanism is fixedly connected to the upper ends of the base and the workbench. According to the environment-friendly sampling equipment for atmospheric pollution, when an output shaft of a starting air cylinder moves forwards to drive a front sealing plate to move forwards along the inner side of an air storage cylinder, air in the air storage cylinder can be pushed out from the front end, air needing to be collected enters from the rear end of the air storage cylinder, and when the front sealing plate slides to a clamping hole, a spring is not squeezed any more; the clamping blocks are pushed out of the grooves and then moved into the clamping holes, so that the front sealing plate is fixed to the front end of the interior of the air storage cylinder, meanwhile, the rear sealing plate is moved to the rear end of the inner side of the air storage cylinder, the collected air is sealed into the air storage cylinder, and collection of the polluted air is completed.

This utility model discloses a sensor clamping device for ultrasonic tandem scanning of small-diameter pipes, comprising: a main frame, a guide assembly, and a pressure assembly. The main frame includes a guide rod on each of the left and right sides, and a sensor mounting bracket at each of the front and rear ends, adjustable along the guide rods. The guide assembly includes two adjustable guide units mounted on the main frame. The pressure assembly includes a pressure maintaining unit mounted in the sensor mounting slot of the sensor mounting bracket. According to this utility model, the sensor clamping device for ultrasonic tandem scanning of small-diameter pipes can control the pressure of the sensor on the pipe through the pressure assembly, avoiding pressure fluctuations from affecting the detection results; the guide assembly ensures that the two sensors in tandem move in a coordinated manner in the set detection direction; the distance between the two sensors is adjusted by sliding the sensor mounting bracket on the guide rod, improving the reliability of the detection results. Furthermore, the entire device has a simple structure, is easy to assemble and disassemble, and is convenient to store and carry.

The application discloses a cable conductor AC resistance testing device and method, which directly supplies a large current to a cable conductor, measures the temperature, current and voltage of the powered cable conductor, adopts the measured data and a function relationship between the interference voltage value and the cable conductor radius which is fitted in advance, and obtains the cable conductor AC resistance, so that the reverse current is not applied to the cable metal shielding layer, and the proximity effect between the cable conductor and the shielding layer is avoided to influence the test result.

This utility model provides a slide rail positioning type weld strength testing fixture, relating to the field of testing fixture technology. It includes a base frame, the top of which is provided with a multi-directional positioning structure. The multi-directional positioning structure includes a mounting plate, the bottom of which is fixedly connected to the top of the base frame. A hydraulic telescopic rod is fixedly mounted on one side of the mounting plate, and a U-shaped clamping plate is fixedly connected to the output end of the hydraulic telescopic rod. An adjustable support structure is provided inside the base frame. By setting up the multi-directional positioning structure, the opposite sides of the weldment can be auxiliaryly limited under the action of the U-shaped clamping plate and the fixed plate, thus ensuring the weldment is firmly fixed. Simultaneously, under the action of the first screw and the clamping plate, the other two sides of the weldment can be auxiliaryly clamped and limited, thus ensuring the weldment is firmly clamped and preventing positional displacement during testing, which would affect the test results.

The utility model discloses a water sample collecting device for water quality monitoring, which belongs to the technical field of water quality monitoring, aims at solving the problem that a sampling device lacks a filtering mechanism, and comprises a bottom plate, a plurality of supporting columns are fixedly connected to the bottom of the bottom plate, and universal self-locking wheels are fixedly connected to the bottoms of the supporting columns. The top of the bottom plate is fixedly connected with a convex frame, the top of the convex frame is fixedly connected with a water pump, one side of the water pump is fixedly connected with a water pumping pipe, and the bottom of the water pumping pipe is fixedly connected with a telescopic hose. The filter cartridge can filter foreign matters such as gravels in water to prevent large particulate matters in the water from entering the water pump, so that the water pump equipment is prevented from being abraded or blocked, the service life of the equipment is prolonged, and meanwhile, after solid matters are removed, the concentration of soluble pollutants in a water sample can be more accurately measured; the detection result is prevented from being influenced by solid substances.

This utility model discloses an in-situ testing device for geotechnical engineering investigation, relating to the technical field of in-situ testing equipment. The utility model includes a base, with support columns fixedly connected to the top of the base. A fixing plate is sleeved and fixed to two support columns on the same side. A hydraulic cylinder is fixedly mounted on the top of the fixing plate. The telescopic ends of the hydraulic cylinders on both sides pass through the fixing plate and are fixedly connected via a lifting plate. The main body of the pressure gauge is fixedly mounted on the top of the lifting plate. This utility model features brake wheels to facilitate movement of the in-situ testing device for geotechnical engineering investigation. A limiting component locks the device's position, ensuring stability during in-situ testing and preventing accidental movement that could affect test results. A protective canopy provides sun and rain protection for the pressure gauge and pressure meter main bodies, further extending the lifespan of the in-situ testing device.

The invention relates to a semi-automatic commutator inter-sheet voltage withstanding detector, which relates to the technical field of commutator detection equipment and comprises a workbench, a fixing mechanism mounted on the workbench and a detector mounted on the workbench in a lifting manner and used for detecting a commutator. The blowing clamping mechanism is mounted on the workbench and is used for driving the fixing mechanism to further clamp the commutator; a mounting cavity is formed in the workbench, and the fixing mechanism comprises a clamping plate for clamping the commutator; the blowing clamping mechanism comprises a first air delivery pump mounted in the mounting chamber, an air delivery box communicated with an air delivery port of the first air delivery pump, a telescopic rubber hose communicated with an air outlet of the air delivery box, an air delivery pipe communicated with an air outlet of the telescopic rubber hose and an air bag communicated with an air delivery port of the air delivery pipe; the air bag is connected with the clamping plate so as to drive the clamping plate to further clamp the commutator when the air bag expands. The commutator detection device has the effect that the commutator is fixed more stably when the commutator is detected.

The utility model discloses a mobile water pollution detection device, which comprises a ship body, the inner wall of the ship body is rotatably connected with a winding wheel, the outer wall of the winding wheel is wound with a sampling hose, one end of the sampling hose is connected with a sampling head, the sampling head comprises a shell and a filter screen, the shell is fixedly connected with one end of the sampling hose, and the filter screen is fixedly connected with the shell. The filter screen is embedded in the outer wall of the shell, a first perforated plate is arranged on the outer wall of the shell and located on one side of the filter screen, a second perforated plate is in sliding fit with the inner wall of the shell, a guide cylinder is fixed to the inner wall of the shell through a fixing frame, a connecting rod is in sliding fit with the inner wall of the guide cylinder, the other end of the connecting rod is connected with the second perforated plate, and a spring is installed on the inner wall of the guide cylinder. Two electromagnets are oppositely mounted on the inner wall of the guide cylinder and one end of the connecting rod; the sampling head is arranged, and the shell is closed when the sampling head does not reach the sampling depth, so that water at other depths is prevented from entering the shell when the sampling head moves, sampling is carried out at the same time during sampling, and the detection result is not influenced.

The invention discloses a carbon electro-optic catalysis water ecological restoration device in the technical field of water ecological restoration, which comprises a support frame, a protective shell with a plurality of water filtering holes in the surface, and a protective cylinder which is mounted in the protective shell and provided with water permeable holes in the surface, a plurality of mounting openings are formed in the surface of the mounting frame, the surface of the mounting frame is hollowed out, and an opening is formed in the position, corresponding to the mounting frame, of the protective shell; in the process of testing the ratio of carbon electro-optical catalysis, the fastening frame and the mounting frame are used for pressing and fixing the carbon rod, other structures do not need to be disassembled additionally, unnecessary operation is reduced, the replacement efficiency is improved, and therefore the detection speed is increased, the contact and the connecting block are communicated when the carbon rod is pressed and fixed, and the detection efficiency is improved. The carbon rod can be thoroughly powered off in time when the fastening frame is turned over and opened, and the situation that power failure is not timely due to misoperation, and harm is caused to the safety of replacement personnel is avoided.

This invention relates to a longitudinal loading test fixture and method for toothed concrete sleepers. Two support components are spaced apart along a second direction, and each support component has two mounting slots spaced apart along a first direction. The openings of the mounting slots face upwards, allowing the four mounting slots of the two support components to be fitted to the four rail bearing slots of the two sleepers. Two force transmission components are correspondingly connected to the opposite sides of the two sleepers and located at the transverse center of the sleepers, enabling vertical loading between the two sleepers. This forms a symmetrical longitudinal loading test for the sleepers. The torque generated by the loading is balanced by the opposite sleeper, avoiding interference with the test results and fundamentally eliminating the safety risks caused by torque. Furthermore, it eliminates the need for further forced constraint on the sleepers, simplifying the loading process. Moreover, by utilizing this symmetrical loading principle, parallel fatigue testing of dual sleeper samples is achieved, simultaneously improving fatigue testing efficiency.

The invention provides an intelligent inspection system and method for the sealing performance of a power cable pipeline, and belongs to the technical field of power cable pipeline operation and maintaining.The intelligent inspection system comprises a dynamic barometric disturbance unit for injecting periodic barometric signals into a closed pipe section; the distributed sensing network unit is arranged along the closed pipe section and is used for collecting dynamic pressure waveform data, a static pressure stable value, a soil resistivity value and environment temperature and humidity data; the blind source separation unit is used for preprocessing the collected data and extracting leakage characteristic data; the three-dimensional positioning unit is used for calculating three-dimensional coordinate data of a leakage point in combination with the leakage characteristic data and satellite navigation system positioning data; and the AI prediction unit outputs future leakage probability and maintenance suggestions through the leakage risk prediction model. According to the intelligent inspection system for the sealing performance of the power cable pipeline provided by the invention, the accuracy, the anti-interference capability and the operation and maintenance perspectiveness of the sealing performance detection of the cable pipeline are comprehensively improved, and the operation and maintenance efficiency is remarkably optimized.