34results about How to "Avoid inaccurate detection" patented technology

The invention provides a wheel camshaft precision detection device, which comprises a base, a detection mechanism, a linkage piece, a lifting mechanism and a clamping mechanism, and is characterized in that the clamping mechanism is used for clamping a camshaft with a cam, the lifting mechanism is arranged on the base and is used for driving the linkage piece to lift, the detection mechanism comprises two groups of symmetrically arranged detection assemblies, and the detection assemblies are arranged on the base. The detection assembly comprises a fixed sleeve, a movable column, a detection head, a telescopic sleeve, a guide column and an indicator lamp, the movable column is axially connected to the fixed sleeve in a telescopic mode and connected with the top end in the fixed sleeve through a first spring, and the detection head is arranged at the end of the movable column. When the detection mechanism carries out specific detection, the cam is used as a middle conductor, and the indicating lamps on the two sides are turned on. And the guide post is in constant contact with the cam in the ascending process. In the ascending process of the detection heads, if the two sides of the cam are asymmetric, the detection head on one side is separated from the cam, and the indicating lamp on the side is extinguished, so that the asymmetric positions of the two sides of the cam are obtained.

The invention relates to the technical field of tumor detection, in particular to a tumor drug resistance detection device based on artificial intelligence. Comprising a bottom frame, the bottom frame is fixedly connected with a shell, the shell is provided with a hydraulic push rod, the telescopic end of the hydraulic push rod is fixedly connected with a transverse rod, the transverse rod is fixedly connected with a first moving rod, the first moving rod is fixedly connected with a first piston plate, the bottom frame is provided with a first motor, and an output shaft of the first motor is fixedly connected with a rotating plate. The rotating plate is provided with a middle plate, the middle plate is in sliding connection with a first sliding column, and the first sliding column is provided with a cooling plate. The first piston plate is used for compressing air in the shell, and the cooling plate is used for cooling the nearby area, so that tumor cells are in a high-pressure and low-temperature environment similar to deep sea in the drug resistance detection process, and the normal living environment of the tumor cells in the drug resistance detection process is improved; and inaccurate detection caused by the change of the living environment is avoided.

The invention relates to a method for regulating and controlling the zinc-acid ratio of electrodeposition circulating liquid on line, and relates to the technical field of zinc electrodeposition processes. The method is applied to a system for online detection of the zinc-acid ratio of the electrodeposition circulating liquid, the zinc content in a sample can be measured through a zinc detection module, and meanwhile, a first conductivity sensor is arranged to be matched with a first color sensor for matched detection, so that the accuracy and reliability of zinc content detection are effectively guaranteed; the acid content in a sample can be measured through the acid detection module, and meanwhile, a second PH electrode is arranged to be matched with a second color sensor for matched detection, so that the accuracy and reliability of acid content detection are effectively guaranteed; according to the method, the acid content value and the zinc content value are monitored in real time, so that the zinc-acid ratio is adjusted, efficient and stable proceeding of the zinc electrodeposition reaction can be effectively guaranteed, and the production quality of zinc electrodeposition is guaranteed.

The invention discloses a feeding device, which comprises a liquid storage unit, a feeding unit, a discharging unit and a control unit, the mounting groove is used for bearing the liquid storage unit, a push rod assembly is arranged at the bottom of the mounting groove, and a liquid suction channel in the push rod assembly communicates with the interior of the liquid storage unit through a bottle opening of the liquid storage unit; the electrode unit is arranged in the liquid storage unit and generates corresponding potential according to the liquid level of the additive when being electrified; the probe is arranged at the groove bottom of the mounting groove, the fixed end of the probe is electrically connected with a liquid level detection circuit of the feeding device, the extending end of the electrode unit extends to the outside of the liquid storage unit through the bottle opening, and the extending end of the probe is attached to the electrode unit. The feeding device has the beneficial effects that by means of the attaching and conducting mode, when the liquid storage unit is replaced, abrasion to the liquid level detection assembly composed of the electrode unit and the probe is greatly reduced, the durability degree of the liquid level detection assembly is improved, and the overall service life of the feeding device is prolonged.

The invention relates to the technical field of concrete production, in particular to an automatic discharging control method and system for automatic concrete production, and the method comprises the steps: collecting an image of a feeding hopper, and carrying out the graying of the image, and obtaining a gray image; constructing an edge recognition model and a key point detection model based on a neural network, and training the constructed edge recognition model and key point detection model by using the sample data; and inputting the preprocessed grayscale image into the trained edge recognition model, and outputting a recognition result. According to a neural network method, the discharging condition of the feeding hopper is monitored, and the problem that too much concrete overflows from the feeding hopper is greatly avoided. And in another embodiment, the blanking condition of the feeding hopper is monitored in combination with data measured by a sensor, so that the detection accuracy is further improved, and the problem of inaccurate detection caused by only relying on image processing is avoided.

The invention belongs to the technical field of heat protector mounting, and particularly relates to an air conditioner compressor heat protector mounting structure which comprises a compressor mechanism, an external assembling mechanism and an internal assembling mechanism, the external assembling mechanism is mounted at the upper end of the compressor mechanism, the upper end of the external assembling mechanism is connected with the top of the compressor mechanism, and the internal assembling mechanism is mounted at the lower end of the compressor mechanism. The external assembly mechanism is used for connecting a shell at the upper end of the compressor mechanism, the built-in thermal protector can be far away from a coil, the built-in thermal protector is prevented from being damaged due to heating overload, meanwhile, the external thermal protector is in close contact with a sealing binding post at the top of the compressor mechanism all the time, and the sealing binding post is prevented from being damaged. And inaccurate detection of the external thermal protector can be avoided.

The invention relates to a personnel detection method and device, an electronic device and a storage medium, and the method comprises the steps: obtaining to-be-analyzed module length data transmitted by a wireless device; wherein the wireless device and the wireless signal detection device are a pair of wireless signal receiving and transmitting devices constructed in advance; calculating the variance of the to-be-analyzed modulus length data to obtain an initial variance calculation result; calculating the variance of the initial variance calculation result to obtain a quadratic variance calculation result; performing statistics on the initial variance calculation result and the quadratic variance calculation result to obtain a target variance calculation result; and when the target variance calculation result is greater than a preset threshold value, determining that the personnel exist in the personnel detection area. According to the invention, the problems of inaccurate personnel detection and large calculation amount are solved, the accuracy of personnel detection is improved, and the calculation amount is reduced.

The utility model discloses a high-precision textile machinery broken line warning device which comprises a machine frame and yarn, a front guide wheel and a rear guide wheel are installed on the machine frame, a through groove is formed in the machine frame, an extrusion block is connected in the through groove in a sliding mode, a lower extrusion wheel is connected to the extrusion block in a rotating mode, and a first spring is installed in the through groove. Through cooperative arrangement of a first sensor and a second sensor, when yarn is broken, an extrusion block extrudes a sliding block to exert pressure on the first sensor so as to prompt, when the extrusion block moves upwards, friction occurs between a lower extrusion wheel and a brake plate for braking, then the second sensor sends out signals, the two detection modes are conducted synchronously, and the detection accuracy is improved. Inaccurate detection of a single detection mode is avoided; through the arrangement of the limiting plate, when the extrusion block moves upwards, the limiting plate is driven to move upwards as well, so that the limiting plate is matched with the upper extrusion wheel or the lower extrusion wheel to clamp the yarn inlet end of the yarn, the broken end of the broken yarn is easy to find, and the burden of workers is reduced.

The utility model discloses a material detection device, and belongs to the technical field of material detection. The material detection device comprises a mounting table, the detection mechanism is arranged on the mounting table and comprises a placement disc rotationally connected with the mounting table, a limiting frame is in sliding fit with the outside of the placement disc, a pressing detection block is arranged above the limiting frame, a pressure sensor is mounted in the pressing detection block, and the limiting frame is fixedly connected with the mounting table; the pressing detection block is in clearance fit with a groove in the edge of the containing disc. Through the design of the driving piece, the wheel frame can be driven to rotate through rotation of the second motor, the wheel frame is matched with the two inclined grooves along with rotation of the wheel frame, and the rolling wheels can sequentially slide out of the inclined grooves, so that the mounting disc and the transmission shaft can be driven to regularly rotate, and pressing detection and material placement are facilitated through the rotation gap.

The invention relates to the technical field of superconducting material detection, and discloses a superconducting material detection device and a detection method thereof.The device comprises a detection table, the detection table is divided into a preparation area and a detection area, a first outlet and a second outlet are formed in the detection table, and a feeding assembly and a cooling assembly are arranged in the preparation area. The temperature and the magnetic field intensity of the superconducting material body are kept constant, under the condition, the magnetic suspension height of the superconducting material body directly reflects whether the diamagnetic performance is qualified or not, namely the intensity of the Meissner effect, and the first detection plate and the second detection plate are ingeniously arranged on the rotating passing path of the superconducting material body. Whether the diamagnetism of the superconducting material body is qualified or not is automatically judged based on the suspension height of the superconducting material body in the magnetic field, so that the detection result is more visual and easy to understand, complex instrument measurement is not needed, and the superconducting material body can be directly classified.

The utility model discloses a water level detection device for a water conservancy project, which relates to the technical field of water level detection, and comprises a stand column, a telescopic cross rod, a water level monitoring terminal and a photovoltaic power supply component, the telescopic cross rod is arranged on one side of the upper part of the stand column, and one end of the telescopic cross rod is fixedly connected with a first pipe hoop mounted on the stand column; according to the utility model, the guide rod and the floating ring are arranged, and the floating ring ascends and descends along the guide rod along with the rising of the water level on the water surface, so that impurities floating on the water surface can be blocked outside the floating ring, and inaccurate water level detection caused by the fact that ultrasonic waves emitted by the ultrasonic water level gauge are blocked by the impurities floating on the water surface is avoided; according to the ultrasonic water level detection device, the telescopic cross rod is arranged, the length of the telescopic cross rod can be adjusted according to needs, then the distance between the water surface detection point and the shore side is adjusted, and the device can be flexibly adjusted according to the field installation environment.

The utility model relates to stable contact wire rod detection equipment, which comprises a conduction detector, an electric box fixed at the lower end of the conduction detector and a detection port fixed on the side surface of the electric box, can realize high-efficiency detection of wire rods through the well-designed detection port, and utilizes a magnetic suction structure to detect that a power supply cannot be conducted when a wire rod interface is not completely inserted. According to the novel wire rod detection equipment, the magnetic attraction structure is arranged, detection inaccuracy caused by poor contact is prevented, meanwhile, the magnetic attraction structure can rapidly exit from the structure of the detected wire rod after detection is completed, efficient detection is achieved, efficient, safe and stable detection of the wire rod can be achieved, and it is ensured that the produced wire rod meets the standard.

The application belongs to the technical field of measurement, and particularly relates to a magnetic ring AL Value detection system, working method and detection method, wherein the magnetic ring AL Value detection system comprises upper and lower limit position mechanisms and a magnetic ring placed therebetween; after the magnetic ring is placed between the upper and lower limit position mechanisms, upper winding mechanisms and corresponding lower winding mechanisms are in contact to form a plurality of windings on the magnetic ring, and an upper detection column in the upper limit position mechanism and a lower detection column in the lower limit position mechanism are in contact; a detector is connected with one winding and the upper detection column simultaneously to form a detection loop to obtain an actual AL Value of the single winding; an upper computer is configured to receive the actual AL Value sent by the detector and obtain a true AL Value according to the actual AL Value, so that the magnetic ring is wound by a tool, and the true AL AL Value can be accurately obtained.

The invention relates to the technical field of transformer detection, in particular to a portable distribution transformer temperature rise test system. The device comprises a test host, a connecting assembly is installed on the outer surface of the test host, a switching assembly is arranged at the top of the connecting assembly, a communication interface is formed in one side of the switching assembly, three output ports are formed in the back face of the switching assembly, a bus interface is formed in the other side of the switching assembly, and the bus interface is connected with the switching assembly. A connecting cable is inserted into the communication interface, and a short circuit device is inserted into the other end of the connecting cable. The three low-voltage ports on the transformer are connected through the short-circuit device, so that the short-circuit device can be accurately connected to the three low-voltage ports in a butt joint mode, connection of the three low-voltage ports can be more standard, the situation that connection of interfaces is loose or cable connection ports are wrong is avoided, cable arrangement on a test site can be more standard, and the test efficiency is improved. And inaccurate test result detection caused by disordered placement of the cables is avoided.

The invention provides a residual oil quantity detection method and device, a storage medium, a vehicle controller and a vehicle, according to the residual oil quantity detection method, after the vehicle is powered on and started, resistance value stability detection is conducted on a fuel resistor used for measuring the residual oil quantity, and when it is determined that the resistance value of the fuel resistor is stable, the residual oil quantity is detected. The remaining fuel quantity is calculated according to the corresponding resistance value of the fuel resistor when the resistance value is stable, and the detection effect on the remaining fuel quantity of the vehicle at the initial stage of vehicle power-on is improved.

The utility model relates to a probe module and a detection device. The probe module comprises a first carrier plate, a second carrier plate, a probe assembly and an elastic assembly. The second carrier plate and the probe assembly are connected with the first carrier plate, and the probe assembly is arranged between the first carrier plate and the second carrier plate; the probe assembly comprises a plurality of probe units, one probe unit comprises a plurality of probes, and the plurality of probes in one probe unit can abut against one detection point of the circuit board to be detected at the same time; when one probe has deviation due to needle insertion, other probes in the probe unit where the probe is located can also electrically abut against the target detection point, so that the problem of inaccurate detection caused by deviation due to needle insertion of one probe in the prior art can be avoided; through the arrangement of the embodiment, the detection precision of the circuit board to be detected can be improved. Besides, the second carrier plate can protect the probe, so that the probe is effectively prevented from being damaged by collision of foreign objects, and the detection precision of the circuit board to be detected can be improved.

The invention discloses a rib detecting and positioning integrated device based on medical thoracic surgery, and relates to the technical field of medical science. The rib detecting and positioning integrated device for the medical thoracic surgery department comprises a carrier, and a driving mechanism used for restraining a user is fixedly installed on one side of the interior of the top of the carrier. An operator controls the air pump to be powered on and run through the controller to generate suction force to suck air in the filter box, dust and impurities are adsorbed through the high adsorbability of the nano-porous plate, the air pump sends clean air to the first electromagnetic valve pipe through the flow detection valve, then the clean air enters the air bag to be expanded, and the rubber plate abuts against the outer side of a person with the chest to be detected. The controller and the flow detection valve are matched to detect the air inlet flow of the air bag and can intelligently control the first electromagnetic valve pipe to be electrified and closed and control the air inlet flow of the air bag and the position of the rubber plate. A second electromagnetic valve pipe is electrified and opened to exhaust air in the air bag, the rib detection effect of the device is improved, and users are restrained.

The present invention discloses an indoor air detection alarm device based on artificial intelligence, and relates to the technical field of air detection alarm devices. The present invention includes a casing and a door panel, wherein the door panel is hinged on the left side of the casing, and further includes an air extraction device, wherein the air extraction device is arranged in the middle of the inner wall of the casing, and the air extraction device includes a round shell, an L-shaped air inlet pipe, an L-shaped air outlet pipe, an electric control fan, a bidirectional infrared irradiator and a scanner, wherein the round shell is fixed in the middle of the inner wall of the casing, the L-shaped air inlet pipe is fixedly mounted on the inner wall of the air inlet of the casing, and one end of the L-shaped air inlet pipe away from the air inlet of the casing passes through and is fixed on the top surface of the round shell, and the L-shaped air outlet pipe is fixedly mounted on the inner wall of the air outlet of the casing. The present invention evenly irradiates impurities in the air through infrared rays, thereby avoiding mis-detection and alarming caused by uneven impurities in the air during detection by the alarm device.

The utility model discloses a photovoltaic panel direct current line vision detection device relates to photovoltaic panel detection technical field, the utility model discloses a shade box is fixedly connected with the top outer wall of base, the utility model discloses infrared heating plate and high definition camera are set up, and the pressure of telescopic link is used Extrusion cylinder extrusion object, the rotation of extrusion cylinder makes extrusion part can be completely distributed on object surface, and then utilize operation panel to start infrared heating plate and make it automatic heating object, utilize high definition camera to detect object surface heat distribution situation and data transmission to the display screen on the operation panel surface of outside simultaneously, reach through the heating plate photovoltaic panel surface heating while utilizing camera detection photovoltaic panel surface temperature, prevent appearing due to camera can only check photovoltaic panel's surface, and detection method is single, cannot carry out detection to photovoltaic panel inside, lead to the structure of device detection place is not accurate etc.

This utility model relates to the field of particle size detection technology, specifically to an online particle size analyzer. This online particle size analyzer is used to detect ferromagnetic particles and includes: a detection shell; and a magnetic distribution detection mechanism. The magnetic distribution detection mechanism includes an electromagnetic plate fixedly connected to the inner wall of the detection shell, which attracts ferromagnetic particles. The magnetic distribution detection mechanism detects the magnetic distribution of particles by observing the different attraction forces of the electromagnetic plate on particles of different sizes. It utilizes a recording and dynamic adjustment device, and can also separate particles of different sizes for subsequent particle size detection, providing a precise basis for subsequent particle size analysis. Furthermore, the feeding mechanism allows for slow particle feeding, preventing inaccurate detection due to excessive particle size at once.

The invention relates to the technical field of network security, in particular to a Web application program vulnerability detection method and device and a storage medium, and the method comprises the steps: obtaining Web application program information, and determining a search state according to a link number average value and a maximum link difference value; determining a search mode as reference threshold analysis or traversal page analysis according to the search state; determining the page type of the to-be-detected page according to the page updating frequency and the sub-page frequency reference value; determining a clustering method according to the page type, namely performing URL clustering according to the page difference degree or performing primary clustering according to the image similarity and performing secondary clustering according to the comprehensive similarity to obtain a plurality of similar page combinations; one URL is correspondingly extracted for each similar page combination for vulnerability detection, and after an attack vector is input, whether a vulnerability exists or not is judged according to the execution condition of the Web application program. According to the method, similar pages can be clustered, and the vulnerability detection efficiency is improved.

The invention discloses a low-carbon GIS (Gas Insulated Switchgear) mixed gas mixing ratio detection method, relates to the technical field of gas detection, and solves the technical problem that the to-be-detected mixed gas possibly contacts with oxygen, so that oxygen exists in a gas cylinder, and the detection of the mixing ratio is not accurate enough. The method comprises the following steps: collecting GIS mixed gas, and transmitting the GIS mixed gas to a mixing ratio detection device; whether oxygen exists in the GIS mixed gas or not is analyzed based on a mixing ratio detection device, and if yes, the oxygen content in the GIS mixed gas is analyzed; if not, analyzing the mixing ratio of the GIS mixed gas; introducing the GIS mixed gas reaching the standard into a humidity detection module; analyzing the humidity of the GIS mixed gas by adopting a resistance-capacitance method; calling the conductivity analysis model to analyze the conductivity of the GIS mixed gas; adjusting the mixing ratio of the GIS mixed gas based on the conductivity; and the detection accuracy can be improved.

The invention discloses an immunochromatography test strip detection device, an immunochromatography kit and application of the immunochromatography test strip detection device and the immunochromatography kit, and relates to the technical field of immunochromatography. The immunochromatography test strip detection device provided by the invention can meet the detection requirements of multiple markers in a unified sample adding mode and the detection requirements of multiple markers of multiple samples in a single sample adding mode. The annular immunochromatography kit disclosed by the invention can be placed on a horizontal surface for detection. By means of the design, the mode that a traditional immunochromatography kit usually needs to be operated vertically is changed, the use convenience and safety are remarkably improved, and particularly, operation is more stable and reliable during reagent sample adding and result reading. Through the design that the sample adding area is arranged on the periphery of the liquid storage chamber in a surrounding mode, the reagent consumption is remarkably reduced through the improvement, and the burden of waste liquid treatment is reduced. The immunochromatography kit provided by the invention can be used for disease screening, pathogen detection, transgenic detection and biomarker analysis, and has a wide application prospect.

This disclosure relates to a stator inspection fixture. The stator includes a body and three-phase copper busbars. The inspection fixture includes: a base for positioning the body; and a copper busbar position detection mechanism slidably disposed on the base along the stator axial direction. The copper busbar position detection mechanism includes three spaced-apart receiving slots, one end of which along the stator axial direction is configured as an opening to allow the three-phase copper busbars to be placed into the receiving slots through the opening. The stator inspection fixture can perform 100% stator inspection on-line, preventing defective products from spilling out. The sliding arrangement of the copper busbar position detection mechanism on the base solves the interference problem during stator handling, significantly reducing the operator's workload and thus better adapting to high-frequency stator handling scenarios on production lines. The receiving slots in the copper busbar position detection mechanism can quickly detect and confirm the position of the three-phase copper busbars.

The utility model belongs to the field of automatic detection devices for small dead pixel faults of LED display screens, and particularly relates to an automatic detection device for small dead pixel faults of LED display screens, which comprises an automatic detection device body, a button is arranged on the front side of the automatic detection device body, and a door body is arranged on the left side of the automatic detection device body. And a display is arranged on the front surface of the automatic detection device main body. According to the display screen limiting device, the supporting block, the motor, the screw rod, the bearing, the threaded sleeve, the sliding groove and other components are designed, the motor is started, the motor drives the screw rod and the threaded sleeve to make threaded motion, the threaded sleeve moves to drive the clamping block and other components to move, the clamping block moves to make contact with the display screen, and then the display screen is limited; therefore, the display screen is prevented from deviating when the display screen is detected by the device, and inaccurate detection of the display screen by the device is prevented.

The embodiment of the present application provides a three-dimensional target detection method, an electronic device and a computer storage medium, wherein the three-dimensional target detection method includes: obtaining multiple environmental images of different fields of view for the same three-dimensional environment scene, and extracting multi-scale features corresponding to each environmental image; based on the extracted multi-scale features corresponding to each environmental image, generating a bird's-eye view feature map corresponding to the three-dimensional environment scene in a polar coordinate system; performing three-dimensional target detection on the bird's-eye view feature map in a polar coordinate system to obtain a three-dimensional target detection result. Through the embodiment of the present application, the accuracy and efficiency of three-dimensional target detection are improved.

The invention discloses a sample visible component analysis system and method, the sample visible component analysis system comprises a counting chamber, an image acquisition device and a processing device, the counting chamber has a first depth area and a second depth area, and the depth of the second depth area is smaller than that of the first depth area; and the processing device is used for acquiring and analyzing the first sample image and the second sample image so as to judge the accumulation condition of the visible components of the first depth region or the second depth region, and classifying and counting the visible components of the sample in the first sample image or the second sample image according to the judgment result. As the counting chamber is arranged into the areas with different depths, samples with different densities are settled at the bottoms of the areas with different depths of the counting chamber, so that the areas with the accumulation condition meeting the requirement and more visible components can be selected for photographing analysis; the detection inaccuracy caused by too many or too few settled samples at the bottom of the counting chamber can be avoided, so that the detection accuracy is improved.

The formaldehyde detection box comprises a box body with an opening in one end, a containing cavity is formed in the box body, the opening end of the box body is detachably connected with a cover body, the joint of the box body and the cover body is provided with a first sealing structure, the cover body is provided with at least two containing positions, one ends of the containing positions extend into the containing cavity, and knob bottles are installed in the containing positions. Material powder or liquid is arranged in the knob bottle, a second sealing structure is arranged at the joint of the containing position and the knob bottle, a rotary guiding structure is arranged between the end, away from the containing cavity, of the containing position and the knob bottle, and a plurality of communicating windows for materials to flow into the containing cavity are formed in the end, close to the containing cavity, of the containing position in the circumferential direction. The sealing device has the beneficial effects that the sealing performance is better, the operation is more convenient, all materials can be mixed only after being started, and the harm of premixed reagents to the environment or human bodies is avoided.

The utility model discloses a fire hydrant leakage alarm device which comprises a fire hydrant, protective covers are arranged on the two sides of the upper end of the fire hydrant, and each protective cover is composed of a movable sleeve and a connecting cover. The water storage box is fixed to the lower portion of the connecting cover, the bottom of the water storage box is connected with fixing boxes through connecting hoses, the fixing boxes are symmetrically installed on the two sides of the lower end of the fire hydrant, a fixing cavity is formed in each fixing box, a movable plate is arranged in each fixing cavity, and an alarm is installed on the inner bottom face of each fixing box; the connecting mechanism is arranged between the fire hydrant and the fixing box, and the connecting mechanism is used for mounting and dismounting the fixing box. According to the leakage alarm device of the fire hydrant, the phenomenon of inaccurate detection caused by residual water at the water outlet after the fire hydrant is used can be avoided, so that the accuracy of leakage alarm can be greatly improved, and the leakage alarm device can also be quickly mounted with the fire hydrant to facilitate subsequent use.

The utility model discloses a sampling detection device for a cylindrical roller bearing, which belongs to the technical field of bearing detection and comprises a workbench, a support, a control panel, a conveyor belt and a stand column are arranged on the workbench, a limiting device is arranged on the conveyor belt, a cross arm is arranged on the stand column, and a dismounting device and a detector are arranged on the cross arm. The dismounting device comprises a guide rod; according to the sampling detection device for the cylindrical roller bearing, when a detector needs to be disassembled, a rotating wheel is pulled to enable a positioning block to be separated from a cross arm, then the rotating wheel is rotated to enable a guide rod to drive a transmission gear to rotate, then a lead screw is rotated through cooperation of a chain, and a square block is in threaded connection with the lead screw; therefore, the square block is separated from the connecting block, and then the positioning block is inserted into the cross arm again through the elastic force of the auxiliary spring, so that the detector is quickly disassembled, and the subsequent normal detection of the bearing is facilitated.