51results about How to "Accurate contact" patented technology

The invention relates to a precision detection device for gear processing, which is suitable for detecting the dynamic performance and single tooth precision of a gear, and comprises a base, a rotating bracket, a fixed block, a motor, a reduction gearbox, a test gear, a to-be-tested gear, a main measuring rod, a plurality of measuring rods and the like. High-precision detection of gear dynamic balance, vibration parameters and the tooth outer end and the contour line of a single gear is achieved, the reduction gearbox reduces the rotating speed of the gear and strengthens torque control, and the gear thickness difference design is matched, so that the multiple measuring rods can slide along the tooth outer end of the gear, tooth surface deformation and the contact state are accurately detected, and the device is made of high-carbon low-alloy tool steel. The gear detection device has high strength and wear resistance, adapts to various gear specifications, can output detection data and analysis results in real time, is simple to operate, high in detection precision and high in applicability, and can be widely applied to the fields of gear manufacturing, quality detection and maintenance.

The invention discloses an automatic detection device for testing lamp beads of an LED lamp strip, and belongs to the technical field of LED lamp strip testing. The device mainly comprises a workbench, one side of the top surface of the workbench is provided with a discharging device used for installing a lamp strip reel, the other side of the top surface of the workbench is provided with a receiving device used for rolling the lamp strip reel, and a lamp bead detection bin used for detecting an LED lamp strip is fixedly installed on the top surface of the workbench and located between the discharging device and the receiving device. The interior of the lamp bead detection bin is divided into a dust removal area and a detection area through a partition plate, the detection area comprises a belt pressing assembly and a detection assembly, and by combining winding and unwinding of an LED lamp belt with lamp bead detection, rapid and continuous detection can be achieved, it is ensured that each lamp bead can emit light reliably and be recognized accurately, and the detection efficiency is improved. The strip pressing assembly and the conductive terminals effectively maintain the flatness of the LED lamp strip and ensure accurate contact of power supply contacts, so that the damage risk of lamp beads is reduced, the production efficiency is improved, the product quality is ensured, and errors caused by manual operation are reduced.

The utility model discloses a four line kelvin measurement accessory of banana head connecting probe, including measuring instrument main part, four banana head jacks are equipped with to measuring instrument main part, four banana heads are inserted respectively in banana head jack, four connecting wires, one end is connected banana head respectively, and the other end is connected corresponding measurement probe, four measurement probes are connected with connecting wire electricity respectively, and are used for contacting the both ends of measured device, the inside of banana head jack is provided with insulating baffle and banana head, and the baffle is used for carrying out electrical isolation to each banana head insertion site, to avoid mutual interference between measurement signal. The utility model discloses adopting probe to replace traditional kelvin clamp structure, and the probe has good flexibility and controllable contact pressure, can realize accurate contact to paster device or surface pin device, and effectively solve the problem of traditional clip clamping difficulty.

The invention relates to the technical field of grounding current detection, in particular to a cable tunnel robot grounding current visual automatic guiding detection system and method, and the method comprises the steps: obtaining a routing inspection route of a cable tunnel robot; acquiring grounding network data of the cable tunnel; a robot inspection feature set is constructed according to the inspection route information, a robot inspection rule is constructed according to the robot inspection feature set, motion data information of the cable tunnel robot is acquired, and whether the motion state of the cable tunnel robot meets the robot inspection rule or not is judged; obtaining mechanical arm motion video data of the cable tunnel robot, and predicting a motion track of a mechanical arm; acquiring multispectral image data of the detection point, and establishing association between the multispectral image data and the position information of the tunnel robot; identifying the grounding electrode by analyzing the multispectral image data, and judging whether the grounding electrode is a detection point or not; and performing grounding current detection on the detection point, and transmitting the obtained detection data to an upper computer.

The utility model provides a special granule packing machine for isatis root granules, which comprises a packing machine body, a hopper, a material frame and a material roller, the hopper and the material frame are both fixedly mounted at the top of the packing machine body, the material roller is in transmission connection with the inner wall of the material frame, one side of the material frame is fixedly connected with a support frame, and the support frame is fixedly connected with the packing machine body. A pressing mechanism is arranged in the supporting frame and can press the connected bags in the conveying process. The utility model relates to the technical field of isatis root granules. According to the particle packaging machine special for the isatis root particles, the pressing mechanism is arranged, so that a pressing block can be pushed by elastic force generated by a spring to move in the direction of a connected bag along tracks of a sliding block and a sliding groove, and meanwhile a first bearing, a rotating rod and a pressing wheel are driven to move; and the surfaces of the pressing wheels make close contact with the connected bags, so that the connected bags are pressed, and the tensioning force in the connected bag conveying process is improved.

This application discloses a method for obstacle crossing of a self-moving device and the self-moving device itself. The self-moving device includes a device body and a robotic arm connected to the device body. The robotic arm includes an operating structure, a working arm, and a joint assembly. The operating structure, the working arm, and the device body are connected via the joint assembly. The obstacle crossing method of the self-moving device includes: if a target obstacle is detected, defining a support area on the upper surface of the target obstacle; controlling the joint assembly to rotate so that the operating structure contacts the support area, and using the operating structure as a fulcrum to lift the device body; controlling the joint assembly to rotate to drive the device body to rotate, so that the device body is positioned on the upper surface of the target obstacle. For obstacles that cannot be directly crossed by the walking component, crossing the target obstacle can be achieved by supporting and lifting the device body with the robotic arm.

This utility model discloses a bidirectional circuit switching membrane button, comprising: a flexible base layer with a first conductive contact and a second conductive contact thereon; a seesaw-type movable layer, hinged to the base layer in the middle via an elastic fulcrum, and having a first pressing part and a second pressing part corresponding to the first and second conductive contacts at both ends; and a waterproof sealing layer covering the base layer and the movable layer, with an annular groove on its edge for fixed installation. The seesaw-type movable layer design enables bidirectional circuit switching, allowing flexible control of different circuit on / off states; the conductive contacts and pressing parts precisely correspond to each other, ensuring accurate contact during pressing and reducing circuit failures; the waterproof sealing layer covers the outside of the button, effectively preventing moisture, dust, and other impurities from entering and protecting the internal structure; the waterproof sealing layer reduces impact and damage to the internal structure of the button from external objects; and the annular groove on the edge of the waterproof sealing layer facilitates quick and stable installation of the button on the device, ensuring its firmness.

The utility model discloses a kind of detachable cleaning tools for photovoltaic power station operation and maintenance, to provide a kind of simple structure, installation is convenient, cleaning efficient solution.The tool includes mounting bracket and the cleaning structure set on it, and the lower end of mounting bracket is equipped with moving wheel and limiting wheel, and moving wheel axis is vertical, rolls on the upper end surface of photovoltaic panel frame, realizes stable movement;Limiting wheel axis is horizontal, and is attached to the front and rear end surface of frame, to prevent deviation.Setting adjusting device on mounting bracket, through adjusting groove, adjusting block, limiting plate and adjusting bolt control limiting wheel pressing force, adapt to different frame specifications, facilitate quick installation and disassembly.Cleaning structure 2 is through the comprehensive cleaning mode of air, water, wiping, compared with single scrubbing mode, with higher cleaning capacity and adaptability, can cope with different types of dirt.

The utility model relates to the technical field of automation equipment, and discloses automation equipment for chip testing, which is characterized in that an alignment floating assembly is additionally arranged to enable an alignment pin column to move relative to an alignment hole in the horizontal direction, so that the alignment pin column can be accurately inserted into the alignment hole, and the chip testing efficiency is improved. Therefore, the probe module can be accurately contacted with the chip on the test carrier plate. The design effectively solves the problem of inaccurate contact between the probe module and the chip in the existing chip test equipment, and significantly improves the precision and reliability of chip test. Meanwhile, the introduction of the alignment floating assembly also enhances the adaptability of the device to chips of different sizes, reduces the test error and chip damage risk caused by inaccurate alignment, and further improves the test efficiency and the stability of the device.

The utility model provides a reversible crusher hammerhead, which relates to the technical field of crusher hammerheads, and comprises a hammerhead main body, a mounting groove of a rectangular groove-shaped structure is formed in the top end face of the hammer head body, and an auxiliary groove of a rectangular groove-shaped structure is formed in the position, located on the right side of the mounting groove, of the top end face of the hammer head body. A balancing weight is clamped in the mounting groove, a fixing hole for locking the balancing weight is formed in the balancing weight, the fixing hole is of a circular hole-shaped structure, the balancing weight is of a rectangular block-shaped structure, and the outer wall of the balancing weight is in contact with the inner wall of the mounting groove. The arrangement of the locking assembly is very ingenious, and the spring elastically pushes the locking rod to be inserted into the balancing weight fixing hole, so that stable locking of the balancing weight is realized; locking can be easily relieved by pushing the handle block, and the balancing weight is convenient to replace; the blocking seat seals the auxiliary groove, dust is prevented from invading and affecting the performance of the spring, the service life of the assembly is prolonged, and meanwhile the locking rod is convenient to maintain and replace.

The invention discloses a high-performance heat dissipation device for an industrial computer and the industrial computer, and relates to the field of industrial computer technology, including: a high-efficiency heat dissipation ceramic sheet group, which is installed on the inner bottom side of a machine body and is used to quickly dissipate the heat generated inside the machine body. Through the cooperation of a fixed-point dynamic heat conduction and heat dissipation component, an operation frame plate drives a heat conduction frame and a semiconductor contact end to extend and retract, thereby achieving precise contact with a heat source point, achieving stability and reliability of the industrial computer when running under high load, and ensuring optimization of the heat dissipation effect. At the same time, under the cooperation of a dynamic protection component, a magnetic field is generated by an electromagnetic coil, and magnetic flow particles are controlled to form a specific arrangement in a circulating coolant flow pipe, thereby enhancing the shielding effect of electromagnetic signals. Through the dynamic adjustment of a rotating electromagnetic protection arc plate and the control of the magnetic flow particles, dynamic protection against external electromagnetic signals is achieved, thereby ensuring the stability and reliability of the industrial computer in a high electromagnetic interference environment.

The invention provides a straight plug, a straight connector socket, a Wafer connector and a cable assembly. The straight plug comprises a plug base and a plug signal pin assembly; the plug signal pin assembly comprises a first mounting base, a plug grounding piece and two plug signal differential contact pins which are arranged adjacently, the first mounting base is connected with the plug grounding piece, and the two plug signal differential contact pins are both mounted on the first mounting base and are arranged adjacent to the plug grounding piece. The two plug signal differential contact pins are adjacent to each other, and the plug signal differential contact pins are also adjacent to the plug grounding sheet, so that the distance between the two plug signal differential contact pins and the distance between the plug signal differential contact pins and the plug grounding sheet are small, and the coupling between the two plug signal differential contact pins can be weakened. Therefore, the signal crosstalk between the signal differential pins of the two plugs is reduced, and the reliability of signal transmission and the signal transmission rate are effectively improved.

The utility model discloses a kind of for PCBA board test's fixed jig, comprising: testing device and placing table, placing table is fixed on the upper surface of testing device;Clamping assembly, clamping assembly includes electric push rod, connecting plate, output rod, fixed frame, rotating hole and connecting rod, electric push rod is provided with two, respectively fixed in the middle part of both sides of testing device, connecting plate is fixed on the upper surface of electric push rod, output rod is installed inside electric push rod, and output rod slidingly penetrates connecting plate, fixed frame is fixed in the upper end of output rod, rotating hole is opened in the outer surface of fixed frame, connecting rod is placed in fixed frame interior, and the end of connecting rod is rotated and penetrated with first rotating shaft, and first rotating shaft penetrates rotating hole, the middle lower end of connecting rod is rotated and penetrated with second rotating shaft. The utility model avoids when testing, PCBA board position deviation, improves the security of testing process, guarantees accurate contact of test probe and test point, improves testing accuracy.

The utility model relates to the field of bean vermicelli drying, and discloses a pressing structure in bean vermicelli drying, which comprises a placing barrel, two sliding grooves are formed in the outer circle wall surface of the placing barrel, sliding blocks are respectively arranged in the two sliding grooves in a sliding fit mode, a placing net plate is fixed between the two sliding blocks, and the placing net plate is arranged on the outer circle wall surface of the placing barrel. A fixing plate is arranged below the containing barrel, supporting plates are fixed to the top face of the fixing plate, a fixing top plate is fixed to the top faces of the two supporting plates, a PLC is fixed to one side of one supporting plate, an electric push rod is arranged below the fixing top plate, and a pressing plate is fixed to one end of a telescopic rod of the electric push rod. According to the bean vermicelli packaging device, the pressing plate is effectively controlled by the electric push rod when the pressing plate is extruded, so that the overall thickness of bean vermicelli can be effectively adjusted when the bean vermicelli is extruded, the thickness of the dried bean vermicelli is not single any more, and the diversity of bean vermicelli packaging is increased.

The utility model relates to an automatic changing device of brake disc workpiece belongs to brake disc positioning changing technical field. It includes frame, workpiece positioning frock and changing adjustment mechanism, and workpiece positioning frock includes taper sleeve and positioning fixture, and taper sleeve sets up floatingly, and taper sleeve is used for positioning the center hole of brake disc, and positioning fixture is used for supporting the inner end face of the cap of brake disc, and changing adjustment mechanism includes frock library, changing pneumatic clamping jaw and changing drive mechanism, and frock library is used for storing the taper sleeve and positioning fixture of waiting for changing, and changing pneumatic clamping jaw can automatically change the taper sleeve and positioning fixture under the action of changing drive mechanism. When needing to change the measurement of brake disc, changing pneumatic clamping jaw can take down the original taper sleeve and positioning fixture and put back frock library, and can clamp the taper sleeve and positioning fixture of corresponding model and move to workpiece positioning frock, realize the automatic change of the taper sleeve and positioning fixture of corresponding model, and the whole changing is quick and efficient, reduces the labor intensity of worker.

The utility model discloses a kind of Chinese cabbage cleaning machines, it is related to food processing technical field, the utility model includes bubble cleaning machine main part, bubble cleaning machine main part backside side is equipped with speed reducer, bubble cleaning machine main part top side is connected with two symmetrical distribution's bearing seat, speed reducer output end is connected with two bearing seats between framework, framework top is fixed with locating seat, locating seat inside is connected with pressing plate by support shaft.The utility model is equipped with the setting of speed reducer, framework and pressing plate, speed reducer can drive and the framework of bearing seat connection autorotation, and then drive pressing plate tail cover framework center of mass revolution;When pressing plate revolution is in water before, it can be correspondingly rotated clockwise downward with the framework axial center under the action of gravity, the buoyancy of cabbage leaf and bubble rising force are overcome by pressing plate weight, cabbage leaf is pressed into water, so that cabbage leaf upper and lower surface can be fully contacted with bubble and water flow, effectively improve cleaning uniformity;Give consideration to cleaning effect and leaf appearance integrity.

The utility model discloses a U-shaped metal contact, which comprises a mounting plate, a contact mechanism arranged on the mounting plate and a conduction mechanism positioned on one side of the contact mechanism, the contact mechanism comprises a protection plate and a contact main body arranged on the protection plate, and a groove is formed on one end surface of the protection plate far away from the mounting plate. A spring and a sliding block connected to the spring are arranged in the groove, a matching groove is formed in the end face, away from the spring, of the sliding block, the conduction mechanism comprises a torsion spring, a turnover base arranged on the torsion spring and a metal guide piece arranged on the turnover base, an extension strip is fixedly connected to the turnover base, a positioning protruding point is arranged on the extension strip, and the metal guide piece is connected with the metal guide piece. The end, away from the extending strip, of the positioning protruding point is matched with the matching groove in the sliding block. According to the U-shaped metal contact, the overturning seat can be accurately contacted with the protection plate when being overturned each time, so that the metal contact cannot be misplaced after being used for a long time, and the service life of the metal contact can be prolonged.

The application relates to a hooking gun for blasting, and relates to the technical field of mine blasting engineering equipment, which comprises a gun head and multiple gun rods, the gun head is installed at one end of the gun rod through a connecting assembly, multiple gun rods are fixedly connected through connecting assemblies, a first prong coaxially arranged with the gun rod is fixedly arranged at the front end of the gun head, and multiple second prongs obliquely arranged towards the rear end of the gun head are fixedly arranged on the outer surface of the middle part of the gun head. The first prong of the gun head cooperates with the second prong, the gun head can be deeply inserted into the inside of a blast hole, accurately contact a cartridge, and multiple second prongs can hook the cartridge from different angles, multiple gun rods can be connected through connecting assemblies, a corresponding number of gun rods are installed according to the depth of the blast hole, the problems of cartridge jamming under special conditions such as broken geological structure and interlayer can be effectively solved, the jammed cartridge can be stably hooked out by being inserted into the inside of the blast hole, and the gun can adapt to blast holes with different depths.

The utility model provides a concrete shrinkage rate tester, which relates to the technical field of concrete shrinkage expansion rate testing equipment and comprises a bottom frame, and the other end of the bottom frame is fixedly connected with a power component. A support assembly; the supporting assembly comprises positioning frames fixedly connected to the two sides of the top end of the bottom frame, sliding grooves are formed in the two ends in the positioning frames, and limiting grooves are formed in the positioning frames. A height adjusting assembly; the height adjusting assembly comprises a threaded column rotationally connected to one sliding groove, a mounting column is slidably connected to the interior of the other sliding groove, and the outer side of the threaded column is in threaded connection with a first moving block. By means of the design, the position of the movable plate can be accurately adjusted to fix the test block, and instability of the test block during placement is avoided; and the height of the test meter can be accurately adjusted according to the height of the test block, so that the measuring head is accurately contacted with the surface of the test block, the measurement error caused by inaccurate placement of the test block is avoided, and the accuracy of concrete shrinkage rate measurement is improved.

The invention relates to the technical field of metal drawing, in particular to a bimetal synchronous extending and drawing process and equipment for aluminum-clad invar steel, and the bimetal synchronous extending and drawing process comprises the following steps: step 1, a workpiece penetrating and in-place process: enabling the aluminum-clad invar steel to penetrate through a lubricating box and a die cavity of a drawing die, and ensuring that the workpiece is preliminarily aligned with the drawing direction; secondly, a centering positioning adjusting procedure is carried out, specifically, an inclined guide groove in the inner wall of a control cylinder drives three sets of sliding rods to synchronously retract inwards through guide blocks, so that balls on a positioning plate are attached to the outer wall of the aluminum-clad invar steel drawing piece, and coaxial centering positioning of the workpiece is completed, and thirdly, a lubricating liquid coating preparation procedure is carried out, specifically, a pressure pump pumps lubricating liquid in a liquid storage cavity into an annular flow distribution channel, and the lubricating liquid is coated on the outer wall of the aluminum-clad invar steel drawing piece. The positioning mechanism is designed to be matched with the coating mechanism, the control barrel is driven by the driving force of the air cylinder to slide in the axial direction of the rotating barrel, and the three sets of sliding rods are controlled to drive the positioning plate to synchronously expand outwards or retract inwards through matched transmission of an inclined guide groove in the inner wall of the control barrel and guide blocks on the sliding rods.

The utility model relates to the technical field of power supply testing, and particularly discloses a switching power supply testing device which comprises a testing device used for testing a target object, a sealing cover is arranged on the outer side of the testing device, the sealing cover is located on the outer side of the tested target object, and a straightening assembly is arranged on the inner side of the sealing cover below the testing device. The straightening assembly is matched with a probe of the testing device; according to the utility model, through the cooperation of the abutting block and the metal block of the straightening assembly, the bent probe can be straightened, so that the probe can be more accurately contacted with a test target object, and the stability of electric signal transmission in the test process is ensured, thereby improving the reliability of the test result of the switching power supply.

The utility model relates to a spiral wiring-free road traffic signal lamp, and aims to solve the technical problems that a lamp cap, a controller, a power supply and other parts need to be independently mounted on the current traffic signal lamp, the wiring is complicated, the construction period is greatly prolonged, and the mounting efficiency of the traffic signal lamp is influenced. The mounting mechanism comprises three shell covers hinged to one side of the shell through hinges, first inner threaded holes are formed in the three shell covers, lamp bodies are arranged in the three first inner threaded holes, the three lamp bodies emit red light, yellow light and green light respectively, and first outer threads are arranged on the outer sides of the three lamp bodies; the connecting mechanism comprises three connecting cylinders fixedly installed in the shell and connecting columns fixedly installed at the rear ends of the three lamp bodies, and the traffic signal lamp has the advantages that a traditional wiring link is omitted, the construction period is greatly shortened, and the installation efficiency of the traffic signal lamp is further improved.

The utility model relates to the enamels of cast iron enamel product's spraying device of production technical field is provided, including spraying box body, rotating seat and support seat, the inside of spraying box body is provided with rotating seat, and the outside equal interval of rotating seat top is fixed with support seat, the utility model discloses through electric telescopic link drive rubber top cap moves up and down, can be according to the inside depth of different cast iron enamel product, the height of flexible adjustment rubber top cap, ensure its accurate and product inner bottom wall contact, realize stable auxiliary support. The compatibility of device to all kinds of height cast iron enamel product has been improved. Utilize motor drive built -in push block rotation, realize movable rod outward migration, drive rubber resistance block adjustment position, until with the inside wall of cast iron enamel product of different inner diameter closely, complete stable fixation. Let device can cope with a variety of inner diameter specification's product, greatly expand the scope of application, reduced because product specification different and need frequently change fixed positioning equipment's trouble.

The utility model discloses a kind of cleaning scrapers for selenium drum, including knife rest and blade, blade includes connecting portion and working part, knife rest includes main frame body and auxiliary frame body;The both ends of main frame body are provided with limiting slot, let position hole and limiting hole, selenium drum frame is equipped with the bearing platform for placing main frame body, bearing platform includes with the horizontal plane and vertical plane of main frame body, the both ends of bearing platform are fixedly installed with bearing seat, bearing seat is equipped with the limiting block, internal thread hole and limiting column sequentially with limiting slot, let position hole and limiting hole cooperation, bearing seat is opposite internal thread hole and limiting column and is fixed with pad, the upper surface of pad is flush with the horizontal plane of bearing platform, pad is opposite internal thread hole and set up to avoid opening, lower locking bolt is threadedly connected with the internal thread hole of bearing seat;Auxiliary frame body is pressed in the upper of main frame body. The cleaning scraper for selenium drum has the advantages of improving the installation stability of knife rest, avoiding the rearward movement of knife rest, and high reliability.

The utility model discloses a kind of aluminum pipe bevel cutout burnishing device, belong to aluminum pipe processing technical field, and its technical scheme main points include bottom plate and aluminum pipe ontology, the top of the bottom plate is provided with burnishing mechanism, the left side of the burnishing mechanism is provided with clamping mechanism, the top of the bottom plate is movably provided with slide, the top of the slide is provided with adjusting rod;The burnishing mechanism includes burnishing disc, frequency conversion motor, adjusting plate, pivot and adjusting block, the bottom of the burnishing disc is fixedly connected with the top of frequency conversion motor output shaft, the bottom of the frequency conversion motor is fixedly connected with the top of adjusting plate, the adjusting plate is rotatably connected in the inside of pivot, solve the current part to the burnishing method of aluminum pipe bevel cutout, artificial hand-held aluminum pipe burnishing, inconvenient to keep aluminum pipe bevel cutout angle and polishing equipment stable contact, prone to cause the change of aluminum pipe bevel cutout angle after burnishing, affect the problem of subsequent use.

The invention discloses multi-wire-position wire heat treatment equipment and a using method thereof, and particularly relates to the technical field of steel wire heat treatment, the multi-wire-position wire heat treatment equipment comprises a heating furnace and a steel wire, the heating furnace is used for conducting heat treatment on the steel wire, and a computer is installed on one side of the heating furnace; the heating assembly is used for isolating the interior of the heating furnace to form a plurality of furnace mouths and regulating and controlling the temperature of the steel wires in the heating furnace, the heating assembly comprises a plurality of heat insulation gaskets installed in the heating furnace, and a plurality of furnace positions are formed between the adjacent heat insulation gaskets; through the arrangement of the heating assembly, the heating furnace can conduct synchronous heat treatment on the multiple steel wires, the heat treatment efficiency of the steel wires can be improved, the temperature of the multiple steel wires in the heating furnace can be independently regulated and controlled, the temperature difference of the wires in the heating furnace can be regulated and controlled, and the generality of the structure and performance of the wires is improved.

The utility model discloses a breaker electrifying mechanism, which comprises a vertical plate, one side of the plate surface of the vertical plate is horizontally provided with a placing plate, the vertical plate is slidably connected with a mounting plate and a driving piece for driving the mounting plate to lift, the mounting plate is provided with an elastic abutting assembly matched with a breaker, and the elastic abutting assembly is provided with a clamping groove. The elastic abutting assembly comprises insulating plates connected with the mounting plate, the number of the insulating plates is consistent with that of wiring ports of the circuit breaker, the width of each insulating plate is smaller than that of the wiring ports of the circuit breaker, the insulating plates are in threaded connection with ball screws, screw bodies of the ball screws are connected with wires, and the wires are connected with the mounting plate. A ball of the ball screw abuts against a wiring board of the circuit breaker. The device can be accurately contacted with the bolt fixing surface of the circuit breaker wiring board, the detection preciseness is ensured, the area of the bolt fixing surface is far larger than that of the upper end surface of the wiring board, the risk of poor contact caused by deviation is reduced, and the detection stability is improved.

The utility model discloses a kind of measuring devices for casting mechanical property tensile test, including base, first support, second support and scale, first baffle is vertically provided in the left end of base, first support is provided on the base right side of first baffle, second support is slidably connected with in the right side of first support, third baffle is slidably connected with in the right side of second support, and top bolt is provided on third baffle, scale is provided in the right side of the top of first baffle, second displacement sleeve is slidably connected on scale, measuring rod is provided in the front end of second displacement sleeve. The utility model can effectively solve the problems existing in the conventional test bar elongation test method, such as inaccurate gauge length measurement, unstable test bar placement, etc., significantly improve the accuracy of test bar gauge length measurement and elongation calculation, while reducing the influence of human factors on measurement results, improve the test efficiency, reduce the labor cost and operation time.

The invention relates to the technical field of medical instruments, in particular to a transanal probiotic colonization enema device and method.The transanal probiotic colonization enema device comprises a transparent scale liquid storage bag and an annular bag belt, the outer wall of the transparent scale liquid storage bag is sleeved with the annular bag belt, and the inner wall of the annular bag belt is fixedly connected with a constant-temperature heater; the outer wall of the transparent scale liquid storage bag is wrapped with a paraffin-based composite layer, the lower surface of the transparent scale liquid storage bag is fixedly connected with a medical silica gel catheter through a Luer taper, gastric acid and bile inactivation barriers are bypassed through rectal administration, the survival rate of probiotics is greatly increased, the probiotics directly reach the colon diseased region in a targeted mode, and the survival rate of the probiotics is increased. High-concentration florae are in accurate contact with intestinal mucosa, the colonic colonization rate is increased, the symptom relieving period is shortened, the device is easy and convenient to assemble and suitable for families and basic medical scenes, double leakage prevention is achieved through the annular bag, the funnel-shaped abutting piece and the leakage-proof and backflow-proof valve, leakage is eradicated, tissue damage is reduced through the arc-shaped tip design, and the use comfort is improved through self-adaptive sealing.