165 results about "Force gauge" patented technology

Apparatus and methods for an implant are provided. The implant may have a constrained configuration and a relaxed configuration. The implant may include a strut having an end that may be captured by a hub and may define a reference angle in the relaxed configuration. The implant may include a swivel body that may engage a shaft of a delivery cable and may be rotated through the reference angle. The apparatus may include a pusher catheter to push the implant. The delivery cable may engage the implant. The apparatus may include gauge handle that may include a force gauge to indicate the presence of a force acting on the implant. The apparatus may include a bushing that may be fixed to an end of a pusher catheter. The bushing may move along a delivery catheter lumen and may guide the implant to a keyed position at the bushing.

The utility model discloses a push-pull force detection device, which comprises a push-pull force meter and a test platform connected with the push-pull force meter, and is characterized in that the test platform comprises a base, a push-pull force sensor and a detection device, the transmission mechanism comprises a transmission lead screw and a transmission sliding block arranged on the transmission lead screw in a sleeving mode, and the transmission sliding block conducts linear reciprocating motion in the axial direction of the transmission lead screw. The driving mechanism is connected with the transmission screw rod and drives the transmission screw rod to rotate; the clamping mechanism is used for clamping a to-be-tested product and comprises a first clamping assembly and a second clamping assembly, the first clamping assembly is connected with the transmission sliding block, and the second clamping assembly is connected with the pull and push dynamometer; the first clamping assembly and the second clamping assembly are oppositely arranged in the axial direction of the transmission lead screw. And the height adjusting mechanism is connected with the pull and push dynamometer to drive the pull and push dynamometer to move along the vertical direction. Through the arrangement of the height adjusting mechanism, the height of the pull and push dynamometer is adjusted, so that the height of the second clamping assembly is adjustable, the levelness of a product to be measured is kept, and the accuracy of drawing force measurement is improved.

The invention provides a hip joint prosthesis. The hip joint prosthesis comprises a femoral stem body; the driving part is arranged on the femoral stem main body; the transmission part is movably arranged in the femoral stem main body, and the driving part drives the transmission part to move; the plug connector is telescopically arranged on the femoral stem main body to have a plug-in position and a first storage position, and the transmission part moves to drive the plug connector; when the plug connector is located at the plug-in position, the plug connector extends out of the femoral stem main body; when the plug connector is located at the first storage position, the plug connector retracts into the femoral stem main body; the force measuring piece comprises a dynamometer and a first elastic piece connected to the dynamometer, the dynamometer is movably arranged in the femoral stem body, and the dynamometer drives the first elastic piece to stretch out and draw back on the femoral stem body so that the first elastic piece can have a force measuring position and a second containing position. According to the technical scheme, the problem that the hip joint prosthesis in the related technology cannot give consideration to the stability after implantation and the convenience of later maintenance at the same time is solved.

The utility model relates to the technical field of hydrological monitoring, and discloses an underground water real-time monitoring well which comprises a monitoring well. The monitoring analysis module comprises a processor, and an electronic dynamometer, a range finder and a pressure sensor which are electrically connected with the processor; the movable pulley is connected with the electronic dynamometer, the electronic dynamometer is used for measuring the stress of the movable pulley, a connecting rope is wound around the movable pulley, and one end of the connecting rope is located in the monitoring well and connected with a density ball; the hoisting mechanism is arranged on the ground surface, is electrically connected with the processor and is used for winding the other end of the connecting rope; the supporting frame is fixedly connected to the inner wall of the monitoring well, the supporting frame is located above the NAPL layer, a range finder is installed on the supporting frame and used for measuring the distance between the supporting frame and the upper surface of the NAPL layer, a telescopic rod is arranged on the supporting frame in a penetrating mode, and the lower end of the telescopic rod is connected with a pressure sensor. According to the utility model, the underground water density and the NAPL phase density can be monitored in real time by utilizing a drainage method, so that the calculation precision of the NAPL layer thickness is improved.

The invention provides a roadway global anchor rod cable anchoring force real-time monitoring system and method, anchor rods / anchor cables are installed in drill holes in a roadway top plate and a roadway side part, and the part, outside a locking nut, of the outer surface of a spherical crown part in a tray serves as an annular monitoring area; the dynamometer is arranged between the locking nut and the tray; the guniting-sensing composite layer comprises a guniting layer and a micro film strain sensor array; the in-tunnel processing terminal is connected with the micro film strain sensor array; the ground processing terminal is connected with the in-tunnel processing terminal through the relay transmission equipment; the method comprises the steps that when the anchor rod / anchor cable is installed, the dynamometer and the intelligent sensing unit are synchronously installed; applying a designed pre-tightening force; receiving the strain sequence signal and sending the strain sequence signal to a ground processing terminal; and obtaining strain force data through a strain-axial force calibration model, and carrying out graded early warning. According to the system and the method, unmanned, real-time and intelligent monitoring of the anchoring force state of the roadway global anchor rod cable can be realized.

The invention provides a device and a method for testing the shearing and compression performance of a helicopter engine damping part. The shearing performance testing device comprises a base (1), a fixed support (3), a stress application lead screw (4), a tension sensor (5), a dynamometer (6), a double-fork (7), an arc-shaped pulling plate (8), a mounting support (10), a dial indicator (11) and a magnetic base (12). The compression performance testing device comprises a base (1), a fixed support (3), a stress application lead screw (4), a tension sensor (5), a dynamometer (6), a mounting support (10), a dial indicator (11), a magnetic base (12), a single lug (13) and a square loading frame (14). Measurement of shear and compression deformation displacement of the engine damping member is realized, shear and compression performance of the engine damping member is verified, and the installed damping member is ensured to effectively prevent transmission of vibration waves and weaken harm of inertial impact to an engine. And the situation that the installation of the damping piece with substandard static performance affects the flight safety is avoided. The test cost is low, the operation is simple, the test efficiency is high, and the deformation displacement of the damping member can be visually reflected.

The invention discloses a torque measurement calibration method for a high-power dynamometer, and the method comprises the following steps: a torque measurement calibration device for the high-power dynamometer and the high-power dynamometer are installed, and the torque measurement calibration device for the high-power dynamometer comprises a lever, a standard dynamometer, a hydraulic force application device, a display control terminal and an inclinometer, one end of the lever is connected with the high-power dynamometer, the other end of the lever is attached to a pressure head of the standard dynamometer, the standard dynamometer is connected with the hydraulic force application device, the hydraulic force application device is connected with the display control terminal, the display control terminal communicates with the standard dynamometer and the inclinometer, the inclinometer is arranged on the lever, and the pressure head of the standard dynamometer is a conical pressure head. The lever is provided with a conical force application hole matched with a standard dynamometer pressure head; determining a force application hole position of the torque measurement calibration device of the high-power dynamometer; zero setting is carried out on the high-power dynamometer indicating device; and determining the torque metering accuracy of the high-power dynamometer. The method has the advantages that the length of the force arm is accurate and constant, the error is small, and the operation is safe.

The utility model discloses a flapping door locking force detection device, which comprises a mounting base, a moving mechanism, a lifting mechanism, a dynamometer and a displacement sensor, and is characterized in that the mounting base is mounted on a flapping door mounting table, the moving mechanism is mounted on the mounting base, the lifting mechanism is connected with the moving mechanism, and the moving mechanism drives the lifting mechanism to move; the dynamometer is mounted on the lifting mechanism, the lifting mechanism drives the dynamometer to lift, and the displacement sensor is mounted on the mounting base, so that the current situation that the locking force of the flap door unit cannot be accurately and quantitatively detected originally is changed, the equipment debugging and testing efficiency is improved, the flap door unit product testing and model selecting time of an owner is shortened, and the product testing efficiency is improved. And meanwhile, through the arrangement of the lifting mechanism, the height of the dynamometer can be conveniently adjusted, so that the device can detect the locking force of different positions of the flapping door, and the multi-position locking force measurement is realized.

This application belongs to the technical field of bolt fastener tightening torque coefficient measurement in low-temperature environments, specifically relating to a device and method for measuring the bolt fastener tightening torque coefficient at -196℃. The device includes a low-temperature environment chamber, a bolt clamp, a nut tightening tool, and an axial force gauge. The low-temperature environment chamber has a liquid nitrogen injection hole. The bolt clamp is installed inside the chamber to clamp the head of the test bolt. One end of the nut tightening tool is located outside the chamber and is used to connect a tightening drive tool and its torque sensor; the other end extends into the chamber to hold the test nut and tighten it onto the bolt thread. The axial force gauge is fitted onto the outer circumference of the bolt thread to measure the preload between the bolt and the nut.

The invention provides a bridge model loading detection test device, and relates to the technical field of bridge test devices.The bridge model loading detection test device comprises a supporting frame, a static system simulation mechanism, a loading mechanism and a deflection detector, the supporting frame is provided with at least one pair of force measuring mechanisms, and each force measuring mechanism comprises a cylindrical ring and a dynamometer vertically fixed in the cylindrical ring; a support for supporting the end part of the model beam is arranged on the cylindrical ring; the cylindrical ring is arranged in a rolling manner along the axial direction of the model beam; the static system simulation mechanism comprises a horizontal moving part; the loading mechanism is used for abutting against different positions of the model beam to apply loads. The deflection detector is positioned below the mounting area; according to the invention, model beams of different static systems can be simulated, and loading and deflection change and stress change measurement can be carried out on the model beams of different static systems, so that more sufficient test data can be provided.

The present invention relates to the technical field of sunset yellow filter press devices, and specifically to a filter press processing device for sunset yellow production, comprising a filter press frame and a filter press plate slidably arranged on the filter press frame, pulley assemblies being arranged on both sides of the filter press plate, and separation units being symmetrically arranged on both sides of the filter press frame for driving the pulley assemblies to achieve separation of the filter press plates. The present invention improves the filter press residue processing efficiency through the synergistic effect of mechanical linkage and monitoring, which is specifically manifested as follows: the combined effect of a hydraulically driven lifting mechanism and a knocking assembly is adopted to achieve a vibration synergistic effect formed by the vertical impact generated by the fall of the filter press plate and the horizontal knocking driven by an eccentric wheel, thereby overcoming the problem of high-viscosity filter residue adhering to the filter press plate; the electronic force gauge senses the quality of the residual filter residue during the lifting process of the filter press plate to ensure that the filter residue removal meets the standards.

The invention discloses a method for detecting bearing capacity of a drainage layer of a bottom plate of an underground parking lot. The method includes preparing a plurality of hydrophobic layer samples; a dynamometer is used for pressing the hydrophobic layer sample and acquiring detection data; recording detection data of the hydrophobic layer sample, and determining a stress limit value of the hydrophobic layer sample; and selecting the hydrophobic layer sample with the stress limit value meeting the design requirement of the parking lot bottom plate hydrophobic layer as a formal product to lay the hydrophobic layer of the parking lot bottom plate. According to the method, samples are manufactured for the hydrophobic plates with different convex cup heights, convex cup diameters, thicknesses and convex cup numbers, and the bearing capacity of the samples is detected, so that the bearing capacity of the particularly manufactured hydrophobic layer is objectively and accurately determined, and the hydrophobic plates meeting design load requirements are selected to manufacture the hydrophobic layer; and the influence of collapse of a floor hydrophobic layer caused by uneven stress of the floor of the underground parking lot when vehicles enter and exit frequently on the hydrophobic function is reduced.

A test apparatus comprising including a housing with an interior forming a watertight main measuring chamber for housing a bar, a framework structure supporting the housing, a sample holder in the main chamber, and an air-conditioning system. The apparatus includes a humidifying system, a thermal regulation system, and a humidified air recirculation system. The sample holder has two lower support elements for supporting two end parts of the sample bar, respectively, corresponding to the unsealed end face of the sample bar. Two suspension arms are each hinged at its lower end to one of the lower support elements, the first arm hinged to an upper part of the framework structure, and the second arm hinged to be connected to a force gauge in the main chamber, the support elements suspended on the suspension arms to keep the sample bar axially suspended in a horizontal plane without causing axial stresses in the bar.

This invention discloses a sample loading fixture for stress testing, relating to the field of stress testing technology. The invention includes a base plate with several support components mounted on its bottom surface. A slide rail mechanism is fixed to the top of the base plate, and a support assembly and a testing assembly are connected to the top of the slide rail mechanism. The support assembly and the testing assembly are interconnected. A positioning seat is mounted at one end of the top surface of the base plate. A positioning component is provided on one side of the support assembly, and a pressure plate mechanism is provided on the other side. An adjustment mechanism is provided between the testing assembly and the base plate. A position counting component is provided on one side of the slide rail mechanism. This invention, through a stepped planning of the distance the support assembly is pulled, and by comparing the tensile force display of the force gauge and the tensile stress reading of the stress sensor, forms multiple regular test control groups. Coupled with a high-precision testing environment, this enables comprehensive measurement of tensile stress data and completes a comprehensive and accurate recording of the tensile strength of the substrate glass.

The utility model provides a kind of for calibration tool of guide wire delivery mechanism force sensor, including calibration module and inspection module;Force gage is installed on calibration module, linear module is installed on inspection module, first force sensor is slidably installed on linear module, second force sensor is installed in guide wire delivery mechanism, first force sensor is coaxially connected with force gage or second force sensor by guide wire;First force sensor is driven to slide by linear module, the reading of first force sensor is calibrated using the reading of force gage, or the reading of second force sensor is calibrated using the reading of first force sensor;The utility model first calibrates first force sensor on inspection module using force gage on calibration module, then calibrates second force sensor using calibrated first force sensor, to greatly improve the calibration accuracy of second force sensor in guide wire delivery mechanism.

The invention relates to an automobile seat slide rail horizontal force measuring gauge, which belongs to the field of automobile seat part detection and comprises a workbench, a bottom plate, a horizontal adjusting assembly, a slide rail force measuring assembly, an inserting rod assembly and a lower slide rail fixing seat. The horizontal adjusting assembly comprises a ball head rod and a ball head rod seat; the slide rail force measurement assembly comprises an electric slide rail group, a dynamometer, a ball head pull rod and an insertion rod assembly; the inserting rod assembly comprises a connecting piece, an inserting rod, a lifting adjusting base and an upper sliding rail inserting rod. The ball pull rod passes through the through hole, and the ball-free end of the ball pull rod is hinged with the dynamometer; due to the fact that the horizontal adjusting assembly is connected between the workbench and the bottom plate, it is guaranteed that the bottom plate is in a horizontal state, the inserting rod assembly capable of adjusting the horizontal height is matched, it is guaranteed that the pulling force on the upper sliding rail is in the horizontal direction, and the accuracy of pulling force detection is guaranteed; the electric slide rail group is matched with the dynamometer to replace a worker to pull the upper slide rail by hand, so that the tension is uniform, and the read data is accurate.

This utility model provides a static testing machine for airfoils, belonging to the technical field of static testing equipment. It solves the problem of inconvenient operation of existing static testing equipment. The airfoil static testing machine includes a base, a foundation, mounting components, a display, a suspension mechanism, a steel wire rope, a hand-operated hoist, a pull rope, a force gauge, a support, and a scale. In this utility model, when the pull rope is pulled, it moves the steel wire rope, thereby moving the force gauge and suspension mechanism downwards. During this process, the airfoil is subjected to the traction force of the steel wire rope, causing it to bend. Simultaneously, the force gauge continuously monitors the traction force of the steel wire rope on the suspension mechanism and feeds this force back to the display. When the force applied to the pull rope reaches a predetermined value, the airfoil bends to a certain extent and then stops bending. Thus, the magnitude of the traction force can be changed at any time according to testing needs without changing the load, making operation convenient.

The utility model discloses a portable force arm dynamic teaching device which comprises a track, a spring dynamometer, a gravity weight, a fixing plate and an installation assembly used for installing the fixing plate, the front end face of the fixing plate is rotatably connected with a leather measuring tape, and the front end face of the leather measuring tape is fixedly connected with a force arm ruler. A force arm display assembly is integrated between the leather measuring tape and the track. According to the application, the magnetic attraction base is matched with the fixing plate, so that the whole device can be flatly placed on a table top, also can be attracted to a blackboard, can obliquely pull the spring dynamometer and change the orientation of the rail, the leather tape can automatically change the size and direction, students can directly observe the whole change process of the force arm and complete reading of the force arm, and the students can conveniently and rapidly read the force arm. The reading is found to be changed through the cable-stayed spring dynamometer, and the distance between the acting point and the fulcrum is not changed, so that the existence of the force arm is realized, and the nature of the force arm is really known.

The utility model discloses a portable inclination error calibration device for an automobile brake pedal force meter, which comprises a frame, the frame comprises an upper supporting plate, a lower supporting plate and two vertical rods, each vertical rod is sleeved with an upper wedge-shaped gasket and a lower wedge-shaped gasket, the wedge-shaped surfaces of the two wedge-shaped gaskets face inwards, and the wedge-shaped surfaces of the two wedge-shaped gaskets face inwards. Two ends of the lower supporting plate are respectively provided with a sleeve hole, the lower supporting plate is sleeved on the vertical rod through the sleeve holes, the lower supporting plate is positioned between the two wedge-shaped gaskets, and the lower supporting plate is clamped and inclined by the wedge-shaped surfaces of the upper wedge-shaped gasket and the lower wedge-shaped gasket; a lifting rod; a force sensor; wherein the lifting rod is arranged on the upper supporting plate, and the force sensor is arranged at the bottom end of the lifting rod. The calibration device can calibrate the positive pressure and the inclined pressure of the pedal force meter, and is portable and wide in applicability.

The embodiment of the present application provides a device and a method for measuring the flow of downgoing particles. The device for measuring the flow of downgoing particles comprises a traction member, a flow member, a dynamometer and a sheath. The flow member is hung at one end of the traction member and can naturally droop under the action of gravity. The dynamometer is arranged outside a flow pipe. The sheath has an inner cavity. One end of the sheath is arranged on the flow pipe, the other end of the sheath extends into the flow pipe, and the other end of the sheath has a downward opening. One end of the traction member is connected with the dynamometer. The traction member penetrates into the inner cavity, and the traction member penetrates out of the inner cavity from the opening. Therefore, the device for measuring the flow of downgoing particles has the advantages of long service life, high accuracy of measured data and difficulty in blocking the sheath.

The pressure sensor calibration drawing instrument with the portable positioning structure comprises a frame body, a lifting mechanism, a detection mechanism and a pressing mechanism, the lifting mechanism is installed on the frame body, the lifting mechanism penetrates through the top of the frame body, and the lifting mechanism is movably connected with the frame body; a detection mechanism is arranged at the bottom end of the lifting mechanism; the output end of the detection mechanism is connected with a pressing mechanism; the pressing mechanism comprises a pressing frame and an adjustable positioning structure, the pressing frame is connected to the bottom of the detection mechanism, and a dynamometer to be detected is mounted at the bottom of the pressing frame. The pressure sensor calibration drawing instrument with the portable positioning structure ensures that the sensor is aligned with the center rod of the dynamometer, so that the measurement accuracy is improved, the positioning ring is prevented from accidentally falling off from the U-shaped hole due to the design of the anti-falling block and the anti-falling groove, and the stability and the safety of equipment are enhanced.

The utility model relates to the technical field of headrest fitting force measurement, in particular to an automatic force measurement tool for a headrest locking steel wire spring, which comprises a mounting plate, a support plate capable of linearly moving left and right is arranged on the mounting plate, and a plurality of groups of dynamometers are respectively arranged on the support plate through a plurality of groups of clamps; the mounting plate is further provided with a supporting mechanism corresponding to the dynamometer, and the supporting mechanism is used for supporting the spring and the two types of locking steel wires. The device comprises a supporting table fixed on a mounting plate, a limiting part is arranged on the supporting table, a movable strip is horizontally arranged in the limiting part, the head of the movable strip is connected with a test rod of a dynamometer, and a workpiece to be tested is placed on the supporting table and located at the tail of the movable strip. According to the automatic force measuring tool for the headrest locking steel wire spring, the dynamometer pushes the movable strip to move rightwards, so that the movable strip extrudes the workpiece to be measured, the workpiece is extruded to different states, and the force of the workpiece in different states is obtained through the value of the dynamometer.

The invention belongs to the technical field of airplane windshield wiper pre-tightening force measurement, and particularly relates to an airplane windshield wiper pre-tightening force measurement method, which comprises the following steps: step 1, lifting a windshield wiper, placing a filler gauge between the windshield wiper and the windshield, putting down the windshield wiper, and pressing the filler gauge on the windshield; 2, a pre-tightening force dynamometer is connected with the windshield wiper, and the windshield wiper is slowly pulled upwards in the normal direction of the windshield wiper; and step 3, when the feeler gauge slides off between the windshield wiper and the windshield, stopping pulling the windshield wiper, and reading the reading of the pre-tightening force dynamometer to obtain the pre-tightening force of the windshield wiper of the airplane.

The utility model provides a waterproof roll tensile test device which comprises an external tensile test box and an adjustable test device fixed with the tensile test box, a fixing structure and an adjusting structure are arranged in the adjustable testing device, the adjusting structure is driven by a motor, the motor is connected with a motor encoder, the tension condition is measured by a tension meter in the adjusting structure, and the fixing structure is used for fixing a test sample; the adjustable testing device is connected with the tensile testing box through the side face of the testing platform, the tensile testing box is provided with a testing switch, a plurality of buttons and a display screen, and the motor encoder is connected with the testing switch, the buttons and the display screen. The tensile test box in the tensile test device for the waterproof coiled material can provide a controllable test environment, and the whole tensile test device is convenient to observe and operate.

A brake disc inner distance ruler calibration device comprises a calibration measuring rod, a base, an indicating value calibration assembly and a measuring rod measuring force calibration assembly, the indicating value calibration assembly and the measuring rod measuring force calibration assembly are connected to the base, the indicating value calibration assembly comprises a movable measuring seat and an adjustable measuring seat, the bottom end of the movable measuring seat and the bottom end of the adjustable measuring seat are located on a base sliding rail, and the measuring rod measuring force calibration assembly is located on the base sliding rail. A fixed measuring head is arranged on the inner side of the movable measuring seat, a differential measuring head corresponding to the fixed measuring head in position is arranged on the inner side of the adjustable measuring seat, a microdrum capable of reading the distance between the fixed measuring head and the differential measuring head is connected to the outer side of the differential measuring head, and the measuring rod measuring force calibration assembly comprises a force measuring screw positioning seat, a force measuring adjusting screw and a dynamometer. The force measuring screw positioning seat is connected with the front side of the movable measuring seat through a connecting device, and the dynamometer is connected with the front side of the adjustable measuring seat through a connecting device. According to the utility model, verification and calibration of the indicating value of the brake disc inner distance ruler and the measuring force of the measuring rod can be simply and rapidly completed, and the detection precision and efficiency are effectively improved.

The application discloses a kind of aircraft mass center measuring device and measuring method, the measuring device includes base, bearing combination, shaft, storage board, measuring block, balancing body, pull rope fixed shaft, pull rope, electronic force gauge, level, locking pin and fixed seat;Base is connected with shaft by bearing combination, storage board is fixed with shaft, storage board is locked with base by locking pin, fixed seat is fixed on one side of storage board, the two side faces of fixed seat can install aircraft, the two side faces are perpendicular to the upper surface of storage board, the two side faces are parallel to the rotation center line of shaft, level, measuring block, balancing body and pull rope fixed shaft are installed on the other side of storage board, measuring block, balancing body can be individually slid and locked on the other side of storage board, the center line of pull rope fixed shaft is parallel to the rotation center line of shaft, electronic force gauge is connected with pull rope fixed shaft by pull rope, the device is simple in structure, without installing multiple sensors, operation, observation and data processing are convenient, and cost is low.

The utility model provides a tire load calibration device which comprises a flexible measurement contact part in contact with a rotary drum, the flexible measurement contact part is connected with a dynamometer, and the dynamometer is connected with a pressure application device; the flexible measurement contact part is arranged, so that the flexible measurement contact part has better mechanical strength and wear resistance, the flexibility is much better than that of a steel part, a very good buffer effect can be achieved when impact is generated in the calibration process, and time is won for electrical engineers to stop a calibration test; preferably, the flexible measurement contact part adopts a silica gel block, and one side, connected with the drum, of the silica gel block is processed into a curved surface of which the radius is the same as that of the circular arc of the drum, so that the stability of load transmission is improved; the device is simple in structure and convenient to use.

The utility model discloses a hand brake handle force test trigger device, which comprises a finger ring, a positioning assembly arranged on the finger ring and a handle force meter arranged on the positioning assembly, one side of the finger ring is provided with a guide groove for the positioning assembly to slide, and two sides of the guide groove are provided with side grooves for the positioning assembly to slide; the positioning assembly comprises a positioning cylinder, square pipes slidably arranged in the side grooves are symmetrically arranged on the outer side of the positioning cylinder, an open hole is formed in the outer side of the positioning cylinder, and shifting blocks are slidably arranged in the square pipes; the handle force meter comprises an acquisition end embedded in the positioning cylinder, and the acquisition end is provided with a signal output end penetrating through the ring. The collecting end of the handle force meter is conveniently positioned through the positioning assembly, the stability and operation convenience of the handle force meter during hand brake handle force testing are improved, meanwhile, the position of the positioning assembly can be conveniently adjusted on the finger ring, the force when a worker pulls different positions on the hand brake handle can be conveniently tested through the handle force meter, and the testing efficiency is improved. Therefore, the triggering accuracy of the hand brake handle force test is improved.

The invention discloses a material mechanical property testing device oriented to an extreme pressure environment, relates to the technical field of mechanical testing, and solves the problems that an existing traditional device needs complex dynamic sealing and pressure compensation under high hydrostatic pressure based on a motor scheme, and heat dissipation difficulty and cold welding risk exist under high vacuum; in order to solve the problem of insufficient measurement precision under small deformation based on a scheme of a spring dynamometer, a clamping mechanism is mounted on a main frame in a sliding manner through a linear guide rail and is used for clamping a test piece; the two-stage constant tension mechanism is mounted on the main frame and is used for applying acting force to the tightening mechanism; the displacement amplification mechanism is mounted on the main frame and is used for reading the smaller deformation of the test piece on the lower graduated scale; and the moving pointer is connected with the tightening mechanism and is used for reading the larger deformation of the test piece on the upper graduated scale. The device is simple in structure and low in cost, and is particularly suitable for testing the mechanical properties of materials in two extreme environments.

An offshore pile foundation anti-torsion bearing capacity detection device at least comprises a first loading unit, a second loading unit and a monitoring unit, and the first loading unit comprises a first stress plate, a first steel lever, a first steel force application beam, a first steel force transmission beam, a first self-adaptive fulcrum, a first anti-overturning spiral pile and a first servo motor; the first steel lever is installed on the first anti-overturning spiral pile, and one side of the short arm end of the first steel lever is in rigid connection with the first stress plate through the first steel force application beam. The other side of the long arm end is connected with a first servo motor through a first steel force transmission beam; the second loading unit and the first loading unit are symmetrically arranged relative to the center of the test pile; the monitoring unit comprises a first digital dynamometer, a second digital dynamometer and a holder laser range finder. According to the device, nondestructive testing, test object self-adaption and loading size and position self-adaption of the anti-torsion bearing capacity of the offshore pile foundation can be achieved, construction is convenient and efficient, the detection device can be repeatedly used, and the engineering economy is further saved.