30 results about "Iron detection" patented technology

The invention relates to the technical field of submerged arc furnace power supply systems, and provides an industrial iron smelting detection method based on a direct-current submerged arc furnace, which comprises the following steps of: constructing an electric thermal field chemical reaction dynamic model, integrating electric field, thermal field, chemical and mechanical full-dimensional data, and analyzing a multi-physical field coupling state in the furnace in real time; real-time working conditions and historical data are matched through a dynamic time warping algorithm, optimal power supply parameters are screened, and causes such as insufficient coke activity are positioned; and a digital twin simulation verification optimization scheme is utilized to realize millisecond-level adaptive control. The equipment reliability is improved through edge calculation and a safety interlocking mechanism, the limitation of artificial experience is broken through, and an efficient and accurate intelligent control solution is provided for power supply of the direct current submerged arc furnace.

The invention relates to the technical field of down feather detection, in particular to a method and system for detecting iron in down feather based on spectral analysis. The method comprises the following steps: pretreating to-be-detected down feather to obtain a to-be-detected down feather sample; performing dual-mode spectrum collaborative excitation on the down feather sample to be detected, and performing signal acquisition to obtain detection data of the down feather sample to be detected; performing background correction operation on the detection data of the down feather sample to be detected to obtain correction data of the down feather sample to be detected; obtaining an iron detection result of the down feather sample to be detected according to the correction data of the down feather sample to be detected; therefore, the iron in the down feather can be accurately detected.

The invention discloses synchronous test paper for Fe < 3 + > and Fe < 2 + > as well as a preparation method and application of the synchronous test paper, and effectively solves the problem that high-concentration Fe < 3 + > and Fe < 2 + > in a boiler chemical cleaning solution are difficult to rapidly, accurately and simultaneously detect. The detection test paper is provided with isolated first and second color developing regions, provides an independent space for Fe < 3 + > and total iron detection, and is anti-interference and accurate. A potassium thiocyanate-hydrochloric acid color developing agent is specially used for measuring Fe < 3 + > in the first color developing area, a phenanthroline-ascorbic acid color developing agent is used for measuring total iron in the second color developing area, and the concentration of Fe < 2 + > is calculated in a combined mode. A standard colorimetric card is matched, color blocks accurately correspond to the concentration range (0-5000 mg / L), the common iron ion concentration is covered, and a comparison basis is provided for detection. During detection, information can be rapidly and visually obtained by comparing the color of the color developing area with the color chart, operation is easy and convenient, complex equipment and professionals are not needed, and field requirements are met. And the scheme is resistant to interference of high-concentration and complex components, and the result is real and reliable.

The invention relates to a movable offshore oilfield injection water quality online monitoring device, and relates to the technical field of water quality monitoring. The system comprises a mobile platform, an oil detection module, a total iron detection module, a sulfide detection module, a water quality detection module, a water quality treatment module, a cleaning module and a sampling module which are arranged on the mobile platform, and a detection branch pipe arranged on the oil detection module, the water quality detection module comprises a PH detector, a corrosion rate detector, a dissolved oxygen detector, a suspended matter detector and a buffer tank which are arranged on the mobile platform, and the oil detection module, the PH detector, the corrosion rate detector, the dissolved oxygen detector, the suspended matter detector and the buffer tank are all communicated with a detection branch pipe; and two water control pieces are arranged on the detection branch pipe. According to the application, each detector can detect the water quality in the optimal detection period, each detector can detect the water quality at the same time, and the accuracy and timeliness of each data can be ensured in different detection periods according to the characteristics of each parameter.

The present application relates to the technical field of down detection, and particularly relates to a method and system for detecting iron in down based on spectral analysis; the present application obtains a down sample to be detected by pretreating the down to be detected; performs dual-mode spectral synergistic excitation on the down sample to be detected, collects signals, and obtains detection data of the down sample to be detected; performs background correction on the detection data of the down sample to be detected, and obtains corrected data of the down sample to be detected; obtains an iron detection result of the down sample to be detected according to the corrected data of the down sample to be detected; and thus accurate detection of iron in down is realized.

The utility model provides pure iron detection equipment for a new energy battery, which relates to the technical field of detection and comprises a shell, a display screen is arranged on one side of the shell, a plurality of buttons are arranged on one side, close to the display screen, of the shell, a detection box is arranged on one side of the shell, and a protection device is arranged on one side, close to the detection box, of the shell. The protection device is used for supporting and protecting the detection box through a supporting plate and a placing block, a fixing assembly is arranged on the side, away from the shell, of the detection box, and the protection device is fixed to the side, away from the shell, of the detection box through the fixing assembly. The situation that after the detection box is stressed, the side, away from the shell, of the detection box bends downwards and is damaged is avoided, and therefore the use effect of the pure iron detection equipment is improved. By using the fixing assembly, the protection device can be quickly fixed to one side of the detection box, and then the protection device can be conveniently used subsequently.

The utility model relates to the field of electronic jacquard assembly detection, in particular to a moving iron detection tool for an electronic jacquard assembly, which comprises a bottom plate for placing moving iron and a go-no go gauge for detecting the size of an opening of the moving iron, a positioning shaft is arranged in the middle of the bottom plate, one end of the bottom plate is provided with a limiting block, and the other end of the bottom plate is provided with a fitting block. The front side face of the attaching block is an attaching face, the front side face of the limiting block is a limiting face, the top face of one end of the bottom plate is a matching face, the matching face is located in front of the limiting face, and one end of the go-no go gauge is sequentially provided with a go gauge and a no-go gauge from the end to the center. According to the utility model, the qualified rate of the moving iron can be detected, and the use efficiency of the moving iron in the electronic jacquard assembly is improved.

The invention belongs to the field of coke pusher safety protection, and particularly discloses a coke pusher safety action protection device which comprises a door frame transverse iron detection assembly and a small furnace door opening detection assembly. The door frame transverse iron detection assembly comprises door frame transverse iron, a transverse iron detection piece, a proximity switch used for detecting the door frame transverse iron and a latch opening and closing sensor; the small furnace door opening detection assembly comprises a residual coal chute, a small furnace door detection piece and a small furnace door proximity switch; and the door frame cross iron proximity switch, the latch opening and closing sensor, the small furnace door proximity switch and the chute sensor are electrically connected with the coke pusher safety action protection system respectively. The invention further provides a coke pusher safety action protection method. In order to solve the problems that in the prior art, whether door frame cross iron is in place or not cannot be detected and a small furnace door is not actually opened during coal leveling, safety protection is achieved through interlocking of mechanical parts and a control system.

The utility model provides a bus bar detection point ironing device which comprises a machine frame assembly and a line body assembly arranged in the machine frame assembly, the line body assembly extends into the machine frame assembly from one side of a machine frame and penetrates out of the other side of the machine frame assembly, and the line body assembly is used for conveying photovoltaic assemblies to be processed before and after. And a spot-ironing mechanism is arranged above the line body assembly and is used for spot-ironing the photovoltaic assembly entering the rack assembly. According to the spot ironing device, the working condition of a welding spot of a stitch-welded photovoltaic module is detected firstly, then spot ironing of a bus bar is carried out, detection and spot ironing are integrated, the accuracy of the spot ironing position is guaranteed through cooperation of the limiting assembly and the guiding assembly, the spot ironing effect is further guaranteed through limiting of the spot ironing mechanism, and the spot ironing efficiency is improved. The whole equipment greatly improves the spot ironing detection efficiency and is high in practicability.

The utility model relates to the technical field of hair straightener detection, in particular to an automatic hair straightener detection device which comprises a right-angle C-shaped frame type fixing frame and a to-be-detected hair straightener placed on the right-angle C-shaped frame type fixing frame. The control display is fixedly mounted on the front side of the right-angle C-shaped frame type fixing frame; the detection block is movably arranged in the to-be-detected hair straightener, temperature sensors are fixedly installed on the front side and the rear side of the detection block, and the temperature sensors are electrically connected with the control displayer. According to the utility model, the intermittent staggered engagement between the incomplete gear and the racks on the two sides of the movable inner tooth frame is controlled by the driving motor, so that the detection block can drive the two temperature sensors to reciprocate in the to-be-detected hair straightener, thereby increasing the detection range of heating plates on the two sides of the to-be-detected hair straightener; and the accuracy of the detection result of the hair straightener is effectively improved.

The utility model belongs to the technical field of pipe belt conveyor equipment, and particularly relates to an interlocking alarm device for preventing a pipe belt conveyor from deviating, which is characterized by comprising a pipe belt conveyor bracket, a clamping roller bracket welded on the pipe belt conveyor bracket, a clamping compression roller arranged on the clamping roller bracket, and circular limiting check rings respectively welded on two sides of the clamping compression roller, the iron detection block is arranged at any one of the two ends of the clamping compression roller, the inductance type proximity switch is arranged in a detection range, and the center of the inductance type proximity switch is aligned with the iron detection block. Prejudgment of deviation of the belt of the pipe belt conveyor is achieved, deviation is clamped, the belt of the pipe belt conveyor is prevented from turning over, stable operation of equipment is guaranteed, influence on production is avoided, safety is guaranteed, cost consumption is reduced, equipment efficiency is improved, and labor intensity of maintenance personnel is relieved.

The invention discloses a blast furnace molten iron silicon content on-line rapid detection device, and relates to the technical field of blast furnace molten iron detection.The blast furnace molten iron silicon content on-line rapid detection device comprises a bottom plate and a spectrograph, the upper side of the bottom plate is fixedly connected with a fixing frame, the lower side of the fixing frame is fixedly connected with a first electric push rod, and the lower end of the first electric push rod is fixedly connected with a laser detection head; a connecting wire is arranged between the spectrograph and the laser detection head, and a through hole is formed in the upper side of the bottom plate. According to the online rapid detection device for the silicon content in the blast furnace molten iron, the bottom plate, the laser detection head and the spectrograph are arranged, so that the silicon content in the blast furnace molten iron can be conveniently detected, and the sample containing box, the bottom box, the rotating rod, the rotating disc, the dispersing plate, the gas box, the first piston plate and the second sliding plate are arranged; the sample containing box can be conveniently controlled to descend before detection, a dispersion plate at the bottom can be conveniently controlled to rotate, molten iron can be conveniently stirred, silicon-containing substances in the molten iron can be uniformly distributed during detection, and the influence of non-uniform distribution on the detection precision is avoided.

The invention relates to a method for detecting ferrous iron in sintered ore. The method comprises the following steps: acquiring a sample; grinding, detecting the magnetic induction intensity, and calculating the ferrous content according to the magnetic induction intensity. According to the sinter ferrous iron detection method provided by the invention, modeling is performed on sinter ferrous iron detection with different magnetite addition amounts in the sinter, and automatic matching is performed by using an automatic control system, so that the influence of the mineral effect and sintering process system of the sinter on the accuracy of magnetic induction ferrous iron measurement is reduced.

The utility model provides a cylindrical proximity switch protection device in a water vapor and oil stain environment, and relates to the technical field of steel detection elements, the cylindrical proximity switch protection device comprises a pipe body and a colloid, a proximity switch and a joint part of the proximity switch and a signal line are sleeved through the pipe body, the pipe body is an outer sheath, and a gap is formed between the inner wall of the pipe body and the outer wall of the proximity switch. The liquid colloid is injected into the gap, the liquid colloid is cooled and solidified to form the inner sheath, and the outer sheath is sleeved with the inner sheath, so that the sleeve connection proximity switch and the joint part of the proximity switch and the signal line are doubly protected, the proximity switch can be prevented from being impacted by other objects, and water vapor and oil dirt can be effectively prevented from permeating into the proximity switch; the service life and the reliability of the proximity switch can be greatly improved, the equipment failure time is reduced, the labor capacity of maintenance personnel is reduced, and the production efficiency is improved.

The invention discloses an automatic marking and surface quality detection system and method for chilling blocks for large casting modeling, and belongs to the technical field of chilling block detection.The automatic marking and surface quality detection system comprises a stacking area, the chilling blocks and a detection mechanism, the detection mechanism is arranged in the stacking area, and the chilling blocks for modeling are stacked in the stacking area; the detection mechanism comprises a grabbing device, a recognition device, a marking device and a main control system, the grabbing device can grab the chilling block, and the recognition device can detect the chilling block and transmit a detection signal to the main control system; the marking device can be used for automatically marking the chilling block; the main control system can process detection signals, and the stacking area comprises a material stacking area, an arrangement area and a scrapping area. According to the invention, the detection mechanism is arranged in the stacking area, and the detection mechanism identifies the characteristics of the chilling blocks and processes the chilling blocks according to the characteristics. Therefore, the workload of manual detection of the chilling block is reduced, automatic identification and processing of the chilling block are realized, the use quality of the chilling block is ensured, and the production efficiency is improved.

The utility model relates to the technical field of steel detection equipment, in particular to a multifunctional molten iron sampling mold which comprises an L-shaped base and a cuboid mold body placed on the surface of the L-shaped base, and the mold body internally comprises a spectral analysis sample cavity in the vertical direction and a gas analysis sample cavity in the horizontal direction. The gas analysis sample cavity is communicated with the lower part of the spectral analysis sample cavity, the mold body, the spectral analysis sample cavity and the gas analysis sample cavity in the horizontal direction are equally divided into two halves by a vertical plane on which the symmetry axis of the L-shaped base is positioned, and magnets are respectively arranged on the two halves of the mold body. The multifunctional molten iron sampling mold disclosed by the utility model has the beneficial effects that through an innovative split channel design and a magnetic attraction fitting structure, spectrum and gas analysis samples are obtained while single sampling is realized. And the demolding effect is good.

1. The name of the design product: Tester Wheel Set. 2. The use of the design product: It is used on high-speed rail detectors, installed at the detection iron pipe behind trains / high-speed rails, etc., and is an instrument component for detecting the safety status of iron pipes. 3. The design key point of the design product: lies in the shape. 4. The picture or photo that best shows the design key point: the perspective view.

The utility model belongs to the technical field of cigarette processing equipment, and discloses a small box bottom open edge detection device of a packaging machine, which comprises a fixed shell, a detection plate, a proximity switch and a fixed frame, and the fixed shell is arranged on a guide rail of an auxiliary machine; the detection plate is made of iron and is rotationally arranged on the fixed shell, the upper surface of the top of the detection plate is lower than the lower surface of the bottom of the small box, and a baffle is arranged at the bottom of the detection plate; the proximity switch is arranged on the fixed shell and is electrically connected with a control module of the auxiliary machine; the fixing frame is made of iron, the fixing frame is arranged on the fixing shell, a magnet is arranged on the fixing frame, the magnet is used for enabling the fixing frame to have magnetism, and the fixing frame is used for magnetically attracting the top of the detection plate so that the baffle can be aligned to the proximity switch. Through cooperation of the detection plate and the proximity switch, detection of quality defect cigarette packets with open edges or incomplete open edges at the bottoms of small boxes can be achieved, the defect cigarette packets are prevented from flowing into the next procedure to the maximum extent, and powerful support is provided for high-quality production.

The utility model relates to cigarette packer strip box beautifying device technical field discloses a strip box beautifying device detection alarm device, and the strip box detection module includes height detection device, and the height detection device includes the swing arm rotation setting in the conveying passage top, is equipped with return spring and proximity switch on the swing arm, the bottom of swing arm is equipped with the limit surface, and the initial height of limit surface is greater than the standard height of strip box, the iron detection module includes the direction limiting device, and the direction limiting device includes the magnetic direction wheel setting in the both sides of upper iron, and the guide rail is equipped with correspondingly the both sides of conveying channel, and the both ends stroke end point of guide rail all are equipped with the magnetic switch. Solve the existing technology strip box and the iron edge of beautifying device to collide or hang, lead to strip box damage, and in the high -speed operation of packer, the damaged strip box is not easy to be found, and the damaged strip box enters the next procedure, and the quality of product is seriously affected.

The present invention discloses a nitrogen-doped fluorescent carbon dot for trivalent iron detection and its preparation method and application, which belongs to the field of chemical detection technology. The nitrogen-doped fluorescent carbon dot is prepared by a hydrothermal method using erythromycin and L-isoleucine as raw materials. The present invention prepares red nitrogen-doped fluorescent carbon dots (N-CDs) with a high yield (70%) by hydrothermal treatment of L-isoleucine and erythromycin. The obtained N-CDs have a strong affinity for Fe 3+ With high selectivity and sensitivity, it has broad application prospects in sensors, detection platforms and environmental monitoring systems. Based on the excellent biocompatibility and low toxicity of N-CDs, it can be successfully used for multi-color cell imaging, showing great potential in the biomedical field.

The application discloses a kind of online defect detection equipment of iron printing, it is related to iron printing detection technical field, solve the impurities attached on cleaning brush can not be cleaned well, simultaneously for the impurities cleaned can not be well collected, single to support cleaning brush, there is the case of unstable support, further will cause the technical problem of influence in the whole cleaning process, by setting the cleaning mechanism, the impurities on the surface of cleaning rubber ring are cleaned using the setting clean scraper, to avoid that there will be impurities attached on iron printing when cleaning using cleaning rubber ring, secondly, the collected impurities are collected using the setting collection mechanism, to prevent the impurities from flying everywhere, absorbed by human body, affect human health, simultaneously avoid that the impurities fall on iron printing again, affect detection, by setting sliding concave block and connecting convex block, to facilitate the disassembly treatment of the collection box after collecting impurities.

The invention discloses nitrogen-doped fluorescent carbon dots for ferric iron detection and a preparation method and application thereof, and belongs to the technical field of chemical detection. The nitrogen-doped fluorescent carbon dots are prepared by taking erythromycin and L-isoleucine as raw materials through a hydrothermal method. The red nitrogen-doped fluorescent carbon dots (N-CDs) with high yield (70%) are prepared through hydrothermal treatment of L-isoleucine and erythromycin. The obtained N-CDs have high selectivity and sensitivity to Fe < 3 + >, and have wide application prospects in sensors, detection platforms and environment monitoring systems. Based on excellent biocompatibility and low toxicity of N-CDs, the N-CDs can be successfully used for multicolor cell imaging, and has great potential in the field of biomedicine.

The invention relates to an ironing device capable of automatically controlling temperature by detecting a clothes identification code and a detection method, and belongs to the technical field of smart home, the ironing device comprises a handheld ironing main machine, and the handheld ironing main machine comprises a detection module, a control module, a temperature adjusting system and a heating assembly. According to the ironing device capable of automatically controlling the temperature by detecting the clothes identification code, the detection module is used for automatically identifying clothes fabric component character information or ironing temperature identification codes, converting the character information or the ironing temperature identification codes into electric signals and transmitting the electric signals to the control module, intelligent and accurate control over the ironing temperature is achieved, and the whole process from identification identification to temperature adjustment is automatically completed; a user does not need to manually judge fabric types or set temperature gears, the use convenience is remarkably improved, meanwhile, the ironing detection method for automatically controlling the temperature through the clothes identification codes is provided, the ironing machine can be automatically adjusted to the proper temperature only by scanning the identification codes on the clothes in the using process, and the ironing efficiency is improved. Errors caused by manual judgment and temperature adjustment in the ironing process are reduced, and convenience is improved for users.

The utility model provides a spacer rapid detection device for simulating an assembly state, which relates to the technical field of spacer detection, and comprises a side vertical block and a measuring assembly, the measuring assembly comprises a guide rail fixedly connected to the inner side of the side vertical block, the outer side of the guide rail is slidably connected with a sliding block, and the outer side of the sliding block is fixedly connected with a tension spring. The bottom end of the sliding block is fixedly provided with an inclined abutting block and a distance adjusting assembly, the distance adjusting assembly comprises a connecting block fixedly connected to the top end of the sliding block, the interior of the connecting block is slidably connected with a sliding column, and the interior of the sliding column is in threaded connection with a two-way lead screw; according to the design, the extrusion force is switched into linear conversion of displacement, so that an operator can directly read the dimensional deviation through the scale value without complex calculation. The problems that traditional manual measurement depends on operation skills and steps are tedious are solved.

The utility model provides a turnout spacer iron detection ruler which comprises a strip-shaped ruler body, the right side of the upper end of the strip-shaped ruler body is fixedly connected with a fixed detection marker post, the outer end of the strip-shaped ruler body is slidably connected with a sliding block, the upper end of the sliding block is fixedly connected with a movable detection marker post, and the upper end and the lower end of the strip-shaped ruler body are symmetrically provided with strip-shaped grooves. The upper inner wall and the lower inner wall of the sliding block are symmetrically and fixedly connected with a plurality of sets of support vertical rods, and the ends, away from the sliding block, of every two corresponding support vertical rods are rotationally connected with inner sliding idler wheels. Friction force between the sliding block and the strip-shaped ruler body can be evenly shared through cooperation of the strip-shaped groove and the inner sliding idler wheel, local excessive abrasion is avoided, the sharp-corner indicating sheet is not tightly attached to the surface of the strip-shaped ruler body, especially the position of the graduated scale any more, the service life of the strip-shaped ruler body can be prolonged, and the working efficiency is improved. And the problem that the precision of related parts is reduced due to abrasion is avoided.

The invention relates to the technical field of punching, in particular to a device for automatically detecting missing punching of a product, which comprises a split die, an iron ejector rod, an iron detection plate, a spiral spring elastic reset piece and a contact sensor. The mold is formed by locking a first fixing block and a second fixing block through bolts and nuts and is convenient to overhaul; the ejector rods are in one-to-one correspondence with product preset hole sites, are slidably arranged in mold through holes, and are longer than the thickness of a mold; the elastic reset piece sleeves the ejector rod, and the ejector rod is kept to be initially separated from the detection plate through an annular limiting part on the ejector rod; the detection plate is installed at the bottom end of the second fixing block and connected with the sensor. When no hole is punched, the ejector rod is not in contact with the detection plate under the support of the elastic reset piece, and the equipment runs normally; when missing punching occurs, the product presses the ejector rod downwards, the ejector rod moves downwards to be in contact with the detection plate, and the sensor triggers an alarm and sends a shutdown instruction. The device is simple in structure, the split die is convenient to maintain, missed punching can be efficiently detected, and the production quality is guaranteed.

The utility model relates to an armature displacement testing device which comprises a carrying conveying line, and the carrying conveying line further comprises a material cutting mechanism which is perpendicular to the carrying conveying line and is used for pushing tools on the carrying conveying line to facilitate testing; the material pressing mechanism is arranged above the material cutting mechanism in a lifting mode and used for pressing and fixing the materials conveyed by the material cutting mechanism on the tool. And the testing mechanism and the cutting mechanism are arranged in a straight line, and the testing mechanism can be close to the cutting mechanism. The armature detection device provided by the embodiment of the utility model has the advantages of simple structure, high accuracy, simple operation in the detection process, short time consumption and high efficiency, and detection can be started after the armature is put into the iron core.

This utility model belongs to the field of iron filings detection technology, specifically relating to an iron filings detection device for the surface of a starter shaft. It includes a conveyor belt, a cleaning mechanism, and a high-definition camera. The conveyor belt transports the starter shaft; the cleaning mechanism removes iron filings from the outer surface of the starter shaft; and the high-definition camera detects whether the starter shaft contains iron filings. The cleaning mechanism includes a cleaning housing and an electromagnet. The cleaning housing is fixedly connected to the conveyor belt, and the electromagnet is fixedly connected to the cleaning housing, with the electromagnet aligned with the conveyor belt. The starter shaft passes through the cleaning mechanism first and then through the high-definition camera. This solution solves the problem of being unable to distinguish which iron filings cannot be separated by a magnet.

The invention relates to the technical field of detection equipment for annular parts with inner grooves, and discloses an automatic scrap iron detection device for production of annular parts with inner grooves, which comprises a processing table, a control box is fixedly mounted on the processing table, a lifting seat is arranged on the processing table, the lifting seat is used for placing the annular parts with inner grooves, and the control box is arranged on the control box; the first detection rod and the second detection rod can be accurately inserted into the inner ring gap and the outer ring gap of the annular piece with the inner groove, then the output source drives the connecting plate to start to rotate, and the first detection rod and the second detection rod sweep through the inner ring gap and the outer ring gap of the annular piece with the inner groove at a constant speed. The scrap iron condition is quickly fed back to the control box, whether the annular piece with the inner groove is a qualified product or not is judged according to the scrap iron condition, the intelligent feedback judgment mode greatly improves the detection efficiency and accuracy, errors and tedious procedures of manual detection are reduced, and reliable guarantee is provided for quality control of the annular piece with the inner groove.

The utility model relates to the technical field of magnetic attraction force detection, and discloses mechanical physical magnetic attraction force detection equipment which comprises a detection table, a positioning mechanism is arranged at the top of the detection table, the positioning mechanism comprises a limiting groove, and the limiting groove is formed in the top of the detection table. According to the utility model, through the cooperation of the limiting groove, the gear motor, the bidirectional screw rod, the L-shaped clamping plate, the guide rod, the first electric telescopic rod and the pressing plate, the two sides and the top of a to-be-detected magnet can be conveniently clamped and fixed, and the stability of the magnet during magnetic attraction detection is improved; through cooperation of a second electric telescopic rod, a mounting plate, a tension sensor, a connecting frame and a mounting cover, an iron detection block is conveniently driven to vertically move, so that the iron detection block is magnetically adsorbed on a magnet and upwards applies tension, and the magnetic attraction force between the iron detection block and the magnet can be detected through the tension sensor; and the detected magnetic attraction force data is transmitted to a display, so that the magnetic attraction force of the magnet is conveniently detected, and the detection efficiency is improved.