113results about How to "Realize measurement" patented technology

The invention relates to a binocular vision-based ultra-large on-orbit structure pose three-dimensional measurement method. The method comprises the following steps of: constructing two groups of vision measurement terminals; establishing a global measurement terminal, and establishing a reference coordinate system; obtaining the three-dimensional coordinates of the mark point and the three-dimensional coordinates of the target ball under the coordinate system W2; respectively calculating the position of a mark point on the target tool by each group of vision measurement terminals, and converting coordinate systems of the two groups of vision measurement terminals into a coordinate system W2 according to the known position of the mark point; calibrating the coordinate system W2 and the reference coordinate system; the two groups of vision measurement terminals obtain coordinates of a target point and convert the coordinates to a coordinate system W2; and measuring the vibration center of the target ball by using a laser tracker, obtaining the three-dimensional coordinates of the target ball under the reference coordinate system, calculating the conversion relation between the coordinate system W2 and the reference coordinate system, and further obtaining the coordinates of the target point of the target under the reference coordinate system. According to the method, the limitation of three-dimensional pose measurement in a large-scale and complex environment in a traditional method is overcome.

This utility model relates to the field of hydraulic oil tank technology, specifically a hydraulic oil tank for a marine EHA power unit, comprising a tank body, an inlet, and a return outlet. The inlet is located at the top of the tank body, and a vent is located on one side of the inlet. A return outlet is located on one side of the top of the tank body. A filter screen limiting groove is provided in the return outlet, and a metal filter screen is installed in the filter screen limiting groove by screws. A sealing cap is installed at one end of the return outlet by clamping bolts. A return pipe is connected to one side of the sealing cap, and a sealing valve B is provided on the return pipe. An oil pump is installed on one side of the bottom of the tank body via a mounting base. The hydraulic oil tank for a marine EHA power unit facilitates the filtering of solid particles in the hydraulic oil, improves purity, facilitates recycling, and makes it easy to clean or replace the metal filter screen.

The utility model relates to the technical field of unmanned plane flight state switching, especially to a state switching structure of amphibious unmanned plane, including land walking mechanism for land walking and aerial flight mechanism for aerial flight, and the aerial flight mechanism includes state turnover assembly and drive assembly, the utility model combines two application fields of land tunnel survey and aerial survey, land free steering, fuselage structure change, land-air flight state free switching control, through changing the body structure, reducing the volume, possessing the ability of crossing limited space, can realize the monitoring and measurement to the underground and aboveground environment, the fuselage structure and the flight state change make that the unmanned plane can obtain the lift of multiple angles, when unmanned plane and bottom level, can provide the lift upwards / downwards, and the unmanned plane can execute aerial survey task, when unmanned plane and bottom vertical, can provide the thrust forwards / backwards, and the unmanned plane can execute tunnel survey task.

The application discloses a kiwi storage day prediction system based on a sensing glove, which comprises a portable sensing glove, realizes measurement of kiwi volume, weight, hardness and environmental temperature and humidity information, and further trains a data set collected by the sensing glove through a CNN network, constructs a kiwi storage day prediction model, and realizes prediction of the kiwi storage day. The application combines the portable sensing glove and the kiwi storage day prediction model to form the kiwi storage day prediction system, designs a man-machine interaction interface and an operating system, realizes visualization of system information through the man-machine interaction interface, guarantees more convenient man-machine interaction, realizes the kiwi storage day prediction process based on the kiwi storage day prediction model, realizes prediction of the kiwi storage day, guarantees customer satisfaction and reduces kiwi waste of a merchant.

The application relates to the field of metal part processing devices, in particular to an ultrasonic rolling device for metal parts. The device comprises a connecting plate, a rotating seat is arranged at the upper end of the connecting plate, an electric telescopic rod is fixed at one side of the lower end of the connecting plate, an ultrasonic roller is fixed at the other side of the lower end of the connecting plate, a fixed plate is fixed on the telescopic rod of the electric telescopic rod, a plurality of inclined movable rods are hingedly connected to the lower end of the fixed plate, the plurality of inclined movable rods are arranged according to the circumferential distribution of the axis of the fixed plate, and two adjacent movable rods are connected through a distance measuring assembly. The distance measuring assembly is used for measuring the distance between the two movable rods connected thereto. When the levelness of the workpiece is measured, the plurality of movable rods are controlled to descend simultaneously through the electric telescopic rod, the lower ends of the plurality of movable rods are in contact with the upper end of the workpiece, the distance between the movable rods is measured through the distance measuring assembly, whether the workpiece is vertical is determined according to the measured data, and therefore the efficiency of measuring the levelness of the workpiece is high.

The application discloses a non-orthogonal transducer array three-dimensional ultrasonic wind speed and direction instrument which can be carried on a unmanned aerial vehicle and applied to the field of wind speed and direction instruments, and the non-orthogonal transducer array is adopted to reduce the influence of turbulence on wind measurement accuracy; when the turbulence degree generated by one group of transducers is relatively large, the other two groups of transducers can compensate the data, so that high-precision wind speed and direction measurement is realized; meanwhile, when the unmanned aerial vehicle encounters strong wind, the probe fixing rod will be broken, so that the unmanned aerial vehicle is prevented from losing control due to the large wind area of the orthogonal annular support, and the fixed base plate and the elastic thin rod are arranged to recycle the broken and fallen orthogonal annular support and ultrasonic probe, so that the high-altitude falling object is not easy to form, and the orthogonal annular support and the ultrasonic probe are effectively protected, the subsequent recycling and reuse of the orthogonal annular support and the ultrasonic probe are facilitated, and the wind direction and speed detection in strong convection weather such as strong wind is applicable.

The present application relates to a kind of photoelectric photothermal composite attenuation detection unit and detection array based on solid scattering material, belong to photoelectric measurement technical field, solve the technical problem that photoelectric photothermal composite attenuation detection simultaneously detects unit photoelectric attenuation multiple adjustable and is free from calibration, its detection unit includes energy absorber, scattering sheet, thermistor, stud.Energy absorber is sequentially arranged conical hole, sampling hole, cavity from top to bottom, several pieces of the scattering sheet of stacking is located in cavity, stud is installed in the internal thread of cavity, stud sets exit hole, laser sequentially passes through conical hole, sampling hole, scattering sheet, and is emitted by exit hole.The detection array includes several detection units, support plate, protection plate.Protection plate sets protection plate incident hole, support plate sets support plate exit hole, and laser sequentially passes through protection plate incident hole, detection unit, and is emitted by support plate exit hole.The application is used for photoelectric photothermal composite attenuation detection.

The utility model discloses an oiling machine oil pipe resistance measuring device, which mainly solves the problems that the existing oiling machine oil pipe resistance measurement occupies more labor resources and the measurement result is easily influenced by human factors. The device comprises a casing, an insulating plate, two electrode plates and an acquisition circuit board, wherein the insulating plate is fixedly arranged relative to the casing; the two electrode plates are fixed at the insulating plate and are used for correspondingly contacting with an oil pipe to be measured; the acquisition circuit board is arranged in the casing, is correspondingly and electrically connected with the electrode plates and is used for measuring the resistance of the oil pipe to be measured; the industrial control all-in-one machine is fixed relative to the machine shell and is in corresponding communication connection with the acquisition circuit board; and the transformer is arranged in the machine shell and is used for converting commercial power into voltage class required by the acquisition circuit board. According to the measuring device, the measuring operation can be completed by only one person, the productivity is liberated, the measuring efficiency is improved, and meanwhile, the adverse effects of human factors on the result credibility and the like can be avoided.

The application provides a static pressure balance type underwater self-driven flexible touch pressure sensing finger, which comprises a touch pressure sensing unit, a hydraulic cylinder, a pressure transmission unit, a piezoelectric transducing unit, a transducing unit support, a platinum electrode and a base, the touch pressure sensing unit and the pressure transmission unit are connected with the hydraulic cylinder through bolts, and the oil cavity between the piston end faces is filled with hydraulic oil; the piezoelectric transducing unit is inserted into the stepped through hole in the cylinder wall of the transducing unit support; the pressure transmission unit and the base are connected with the transducing unit support through a flange and a threaded pair; the platinum electrode is fixed in the lead hole of the piezoelectric transducing unit, and the lead of the platinum electrode is led out from the lead hole of the base and connected to a pressure detection circuit. Based on the area effect of Pascal's principle and the solid-liquid interface double electric layer principle, the application can convert the tiny pressure detected by the finger tip into a larger elastic deformation of the flexible hose, so as to generate a high-amplitude ionic current signal and transmit it to the pressure detection circuit, and realize the sensing, amplification and measurement of the pressure signal.

The invention relates to a flat plate ionization chamber capable of measuring beta, X and gamma rays and a use method thereof, one side of an ionization chamber main body is provided with an incident window film, the incident window film side is provided with a balance cover, the balance cover is provided with a vent hole, and the vent hole is arranged on a circular plane of the balance cover; the spring needle is arranged in the ionization chamber main body and is in contact connection with the incident window film; the spring needle stud is located at the rear end of the spring needle, abuts against the rear wall of the ionization chamber body and is used for abutting against the spring needle to make continuous contact with the incidence window film. And the high-voltage conductive column is connected with the spring needle, is connected with an external power supply and is used for applying voltage to the incident window film through the spring needle. The balance cover is arranged in front of the ionization chamber main body, the balance cover provides a secondary electron balance condition for the ionization chamber to measure the strong penetrating radiation, the strong penetrating radiation can be measured by the ionization chamber, on the contrary, when the balance cover is removed, the weak penetrating radiation can be measured by the ionization chamber, and the strong penetrating radiation and the weak penetrating radiation can be measured by one ionization chamber. And the effect of weak through radiation can also be measured.

The utility model relates to a throw-in type high-temperature dew point measuring sensor, which comprises a shell and a crystal resonator, a flange-shaped fixing part is formed on the outer wall of the shell, the shell is limited into an upper part and a lower part by the fixing part, and the lower half part of the shell is inserted into a gas environment or a cavity to be detected; an air chamber for refrigeration is formed in the shell, and the air chamber is provided with an air inlet and an air outlet; the bottom of the shell is provided with a containing cavity communicated with the air chamber, the crystal resonator is fixed in the containing cavity, and the crystal resonator outputs resonant frequency parameters or equivalent electrical parameters of the crystal resonator through a first lead. According to the invention, the method can achieve the judgment of the dew formation moment in a high-temperature environment, and achieves the measurement of the dew point temperature on the basis.

The application relates to the field of Bluetooth, and provides a testing device and a testing system of a Bluetooth device, which comprise a testing box, an opening penetrating through the testing box, a grid conveyor belt for conveying the Bluetooth device to be tested through the opening, a plurality of testing seats uniformly distributed on the grid conveyor belt, a linear driving assembly installed in the testing box, two tooth rods connected with the linear driving assembly, a movable disc connected with the lower ends of the two tooth rods and moving along with the tooth rods, and a testing system installed on the movable disc; the Bluetooth device is tested, the whole process is automatically carried out, the action is stable, the testing effect is good, the cost can be reduced, and the energy consumption can be saved; during the testing process, the precision of measurement is improved through multiple and multilingual testing.

This invention relates to the field of yarn tension testing technology, specifically to a textile yarn tension testing device. The device includes a main frame, a force gauge adapted and installed inside the top of the main frame, two fixed rollers rotatably connected inside the main frame, a motor adapted and installed on the outer side of the back of the main frame, a take-up reel located outside the motor's output end, and two adjusting rollers located inside the main frame. In this invention, the yarn is fixed to the take-up reel after a series of windings. Upon starting the motor, a rotating rod and a disc drive the take-up reel to rotate, thus winding the yarn. Simultaneously, the tension generated during winding is transmitted to the force gauge via a hook to measure the yarn tension. This design allows winding and tension measurement to be performed simultaneously, improving work efficiency.

The utility model provides a kind of circuit board fault rapid detection system, including monitoring and data acquisition comparison system, detection module, XYZ three-axis displacement system, pose adjustment system and motion control system, pose adjustment system is fixed on the X motion component of XYZ three-axis displacement system, to be measured circuit board is fixed in pose adjustment system top, detection module is fixed in the Z axis motion component bottom of XYZ three-axis displacement system.Detection module is used to measure the voltage value between each pin on to be measured circuit board and to be measured circuit board GND end;Motion control system controls XYZ three-axis displacement system movement to adjust the position of detection module, and there is perfect same type circuit board pin volt-ampere characteristic database in monitoring and data acquisition comparison system.The utility model system can realize to be measured circuit board in situ fault detection, will not cause damage to circuit board, and can accurately position circuit fault area, detection efficiency is high and cost is low.

The invention discloses a lithium battery aluminum shell size detecting and positioning device and method, belongs to the technical field of lithium battery accessory production, and aims to solve the problems that an existing detecting device is single in function and low in efficiency due to the fact that clamping needs to be conducted for multiple times, and an aluminum shell is prone to deformation. Four groups of clamping parts are symmetrically arranged on the support frame, and a bidirectional screw is used for driving a first clamping plate and a second clamping plate to synchronously clamp an aluminum shell from the inner side and the outer side, so that stable positioning is realized; the internal measuring part drives a distance sensor to rotate through a stepping motor and cooperates with an electric push rod to complete inner cavity size measurement. The external measuring part adopts a similar structure to realize outer wall dimension detection, the support frame is driven by the driving motor to lift, internal and external dimension continuous measurement under one-time clamping is realized, the device reduces positioning errors, avoids aluminum shell deformation, improves detection precision and efficiency, and is suitable for lithium battery aluminum shell production quality control.

The utility model discloses a size measuring device for plastic mould production, which comprises a base plate, a lifting platform is arranged at the top of the base plate, a lifting mechanism is arranged between the lifting platform and the base plate, a vertical rod is fixedly arranged on one side of the top of the base plate, the vertical rod penetrates through the lifting platform, and the vertical rod is in sliding connection with the lifting platform. The orientation of the main measuring ruler is conveniently adjusted by rotating the clamping sleeve, the main measuring ruler is conveniently adjusted by sliding the sliding sleeve, the sliding sleeve is fixed by rotating the first locking bolt, the fixed measuring mechanism is attached to a mold by sliding the main measuring ruler during measurement, and the measurement accuracy is improved. The mobile measuring mechanism slides to be attached to the other side of the mold so as to measure the mold, the steps are repeated, the size of the mold in the other direction can be conveniently measured, the mold does not need to be moved or measured by holding the measuring mechanism by hand, and use is convenient.

The application provides a carbon nanodot-based temperature sensor and a preparation method thereof. The carbon nanodot-based temperature sensor comprises, from bottom to top, a substrate layer, an interdigital electrode layer and a sensing layer. The sensing layer comprises hydrophilic carbon nanodot particles and an ionic salt. The sensing layer is formed by drop coating of a mixed aqueous solution of the hydrophilic carbon nanodot particles and the ionic salt. The preparation method is simple and easy to implement, and has low cost. The prepared temperature sensor has high sensitivity, high precision and high stability. The sensitivity of the temperature sensor reaches 345951.8%℃ ‑1 .

The application relates to a detection method in the field of mechanical processing, in particular to a pin type tenon blade tip measurement clamp and method, which comprises a base, a positioning pin, a smooth surface pressing block, a positioning block and a sliding block, the positioning block is fixed on the base, the positioning pin is arranged on the positioning block and is used for installing a positioning hole of a pin type blade tenon; the smooth surface pressing block and the sliding block are slidingly arranged on the base, and the sliding block is coaxially arranged opposite to the smooth surface pressing block; a circular hole is arranged on the positioning block, the axis of the circular hole is parallel to the surface of the base, the smooth surface pressing block and the sliding block are oppositely arranged on two sides of the axis of the circular hole, and the smooth surface pressing block and the sliding block are matched to press and position the position of the blade tenon. The pin type tenon rotor blade measurement clamp is used for positioning the blade, the process of establishing a coordinate system is simplified, the measurement efficiency is improved, different measurement methods can be selected according to different measurement conditions, and the measurement and evaluation of the blade tip height and angle are realized.

The invention discloses a surgical specimen box facilitating classified storage, and relates to the technical field of surgical specimen storage devices.The surgical specimen box comprises a main body mechanism, the main body mechanism comprises small specimen boxes, the tops of the small specimen boxes are fixedly connected with large specimen boxes (12), and inner cavities of the small specimen boxes are slidably connected with specimen drawers; a plurality of placement grooves are formed in an inner cavity of the specimen drawer, the tops of the placement grooves make contact with sealing covers in a magnetic attraction mode, and a liquid injection mechanism is arranged in the large specimen box (12). According to the operation specimen box facilitating classified storage, through the arrangement of the liquid injection mechanism, the highest position of a specimen can be accurately obtained, and automatic injection of stationary liquid and accurate control of the liquid level of the stationary liquid are achieved; therefore, the operation of manually measuring the size of the specimen and manually injecting a large amount of stationary liquid by an operator is avoided, the health of the operator is guaranteed, and the storage efficiency of the specimen is improved.

The invention belongs to the technical field of sensors, and particularly relates to a small-size vehicle PTH temperature, humidity and pressure integrated sensor which comprises a shell, a pressure sensing unit, a temperature and humidity sensing unit and a signal collecting and processing unit. The temperature and humidity sensing unit comprises a temperature and humidity sensing substrate and a temperature and humidity sensing chip which are longitudinally arranged below the base; the signal collecting and processing unit comprises a main PCB (Printed Circuit Board) which is transversely arranged above the base; the main PCB is transversely arranged above the base, the temperature and humidity sensing substrate is longitudinally arranged below the base, the main PCB and the temperature and humidity sensing substrate are separated through the base, signal interference can be avoided, heat transfer can be isolated, and the detection precision is greatly improved; and the temperature and humidity sensing substrate is opposite to the flow guide channel and is electrically connected with the main PCB through a plurality of connecting pins, so that complete independence of temperature, humidity and pressure acquisition is realized on the premise that the radial size of the sensor is not increased or even reduced, and comprehensive measurement of temperature, humidity and pressure is realized.

The application provides a road slope measurement method and system based on mobile crowd sensing, comprising the following steps: S1: dividing a to-be-predicted area and a predicted area, assigning a data collection task, and collecting data to the cloud; S2: after the cloud multi-modal sensing data is time-space aligned, performing frame-by-frame correlation matrix operation, fusing the coordinate and the attitude vector of the mobile device, and dividing the space position into a training set and a test set after removing data noise; S3: extracting time-domain features and frequency-domain features from the training set and the test set data, and calculating individual independent features; S4: training and testing the model by using the individual independent features, and further performing data aggregation and result optimization on the preliminary prediction result. The application is beneficial to efficiently and low-costly realizing large-scale road slope sensing, beneficial to establishing a city three-dimensional map, further enriching the content of the current digital map, and shortening the data updating cycle.

The present disclosure provides a liquid volume detection system based on a capacitive sensor array, and relates to the technical field of liquid volume detection. The system comprises: a capacitive sensor array arranged in the interior of a support shell; the support shell is used for supporting the capacitive sensor array, so that the capacitive sensor array is close to the outer surface of a tubular container; the tubular container contains a solution of a liquid volume to be detected; a control module is connected with the capacitive sensor array; the control module is used for controlling each excitation electrode in a plurality of excitation electrodes included in the capacitive sensor array to send an excitation signal to a plurality of detection electrodes included in the capacitive sensor array based on a mutual capacitance measurement method; the capacitive sensor array is used for outputting the capacitance value between the excitation electrode and the corresponding detection electrode under the action of the excitation signal, and obtaining a plurality of capacitance values; and a data calculation module is used for calculating the height of the liquid volume to be detected in the tubular container according to the plurality of capacitance values. The present disclosure improves the accuracy of liquid volume detection.

An optical measurement system includes a first light source that generates near infrared rays, a silicon-based image sensor, and an optical system including a beam splitter that divides light from the first light source into first light and second light. The optical system records with the image sensor, a first hologram resulting from modulation with second light, of light obtained by illumination of a sample with the first light, the second light being diverging light.

The utility model relates to the technical field of single crystal silicon rod detection, and provides a gantry type ground rail device for single crystal silicon rod detection, which comprises a ground rail mechanism, a gantry mechanism and a silicon rod rotating table, the ground rail mechanism comprises a base, a sliding rail and a sliding platform. Sliding rails are arranged on the two sides of the base respectively. A rack is arranged on the sliding rail; a sliding platform is arranged on each sliding rail; a servo motor is arranged on the sliding platform; gears are arranged at the output ends of the servo motors, and the gears are meshed with the corresponding racks; the gantry mechanism comprises a mounting plate and two gantry stand columns. The gantry stand columns are arranged on the corresponding sliding platforms, and a mounting plate is connected between the two gantry stand columns. The mounting plate is used for arranging a visual acquisition system; and the silicon rod rotating table is arranged on the base. According to the utility model, the measurement in a full-length range can be realized, and the stability of the visual acquisition system during automatic image data acquisition is ensured.

The application discloses a kind of measurement methods of interfacial exchange current density, belong to electrochemical test field.The method for realizing of the present application is: using self-built three-electrode single particle electrochemical test system to measure the electrochemical impedance spectroscopy of multiple micron scale particles, obtain the current density of multiple single crystal particles;X-ray diffraction technique is used to obtain material crystal structure information;Using high-resolution transmission electron microscopy to measure the crystal face type of any exposed surface of single particle;The three-dimensional reconstruction of single crystal particle is carried out to obtain the geometric information of particle;Through crystal structure information, the crystal face type information of exposed surface and the angle information between each exposed surface, the crystal face type of all exposed surfaces is calibrated;According to the crystal face type of all exposed surfaces of multiple particles, the area of corresponding exposed surface and the current density of particle, the exchange current density of different crystal faces of crystal material is calculated.The present application can be used for the measurement of micron scale crystal material crystal face exchange current density, quantitative analysis of the electrochemical activity of material.

This application discloses a method, tooling, and assembly structure for measuring the roundness of large cylindrical or cylindrical structures, belonging to the field of industrial measurement technology. The measurement method includes: fixing multiple measuring toolings at corresponding positions at both ends of the workpiece; and determining the theoretical initial value R of the workpiece radius extension. 延长 Determine the coordinates of the predetermined points, such that the actual distance from each predetermined point to the center of the workpiece end circle is R. 延长 The method involves setting measurement lines and measuring the actual distance between each measurement line and the outer surface of the workpiece. The roundness of the workpiece is determined by its actual outer diameter. The measuring fixture includes a connected fastening assembly and a positioning assembly, with the positioning assembly equipped with a reflective plate for positioning predetermined points. The measuring assembly structure includes multiple measuring fixtures located at both ends of the workpiece. The measurement lines corresponding to the same equally spaced positions at both ends of the workpiece are parallel. This application measures the roundness of the outer surface of a large cylinder from the outside, significantly reducing the operational difficulty of the measurement, achieving higher measurement accuracy, and simplifying the measurement of the roundness of large cylinders.

The application discloses a kind of measurement methods of high-pressure water crushing coal rock change law in hydraulic punching process, use high-pressure water punching jet, drill rod, coal mine drilling machine, laser ranging module is set on high-pressure water punching jet, ranging light is set along the jet direction of jet orifice, angle monitoring module, axial monitoring module are cooperatively arranged with drill rod, control module establishes the time-space coordinates of jet orifice by the size parameters of pre-set high-pressure water punching jet, timing module, axial monitoring module, angle monitoring module, control module establishes the dynamic three-dimensional data of hole by laser ranging module and ranging result are matched with each other to establish the space coordinates of jet orifice, control module stores dynamic three-dimensional data by storage module, and the image of dynamic three-dimensional data is displayed by display module.The application not only can obtain accurate data of drilling in the process of punching, but also can obtain the influence of rock stress condition and the change of coal rock property on the punching process.

The invention discloses a convex threaded hole measurement method based on a point cloud, and the method comprises the steps: collecting a point cloud A of the surface of a workpiece, and segmenting a point cloud B of a thread from the point cloud A; obtaining a normal vector of each point in the point cloud A; reversely projecting points in the point cloud A to a two-dimensional image plane, acquiring a normal change rate of each pixel point P, and judging whether the point P is a foreground point or a background point according to the normal change rate; storing the three-dimensional points corresponding to all foreground points in the point cloud B to complete point cloud segmentation; according to the method, based on the characteristic that the normal vector change rate of the thread point cloud is high, a segmentation scheme for point cloud screening based on the normal vector change rate is designed; the thread point cloud is segmented without the help of a theoretical value, the method is not restricted by workpiece machining deviation, and the segmentation precision of the thread point cloud is improved; and the thread point clouds of the stud, the planar threaded hole and the convex threaded hole can be effectively segmented, so that the universality is high, and the application scene is wider.

The utility model provides an auxiliary drainage device which comprises a vertical rod. A clamping assembly is installed on the lower portion of one side of the vertical rod, a T-shaped groove is formed in the other side of the vertical rod, a graduated scale is slidably connected into the T-shaped groove, height adjusting grooves are formed in the lower portion of one side of the graduated scale, the number of the height adjusting grooves is two, and lower hook assemblies are slidably connected into the height adjusting grooves. An infusion groove is formed in the middle of one side of the graduated scale, an infrared pen is fixedly connected to the middle of the other side of the graduated scale, an identification box is fixedly connected to the top face of the graduated scale, and hanging hooks are fixedly connected to the two sides of the graduated scale and located below the identification box respectively. And a storage hook is rotationally connected to one side of the graduated scale and is positioned between the two groups of hanging hooks. Through mutual cooperation of the clamping assembly, the graduated scale, the height adjusting groove, the lower hook assembly, the infusion groove and other structures, drainage work can be conveniently carried out.

This utility model discloses a concrete specimen size measuring device, including a support platform with two support plates on it. A forward-backward propulsion mechanism is slidably connected to the two support plates, and a left-right propulsion mechanism is mounted on the forward-backward propulsion mechanism. A measuring component is mounted at the bottom of the left-right propulsion mechanism. Driven by the forward-backward and left-right propulsion mechanisms, the measuring component moves, enabling the measurement of dimensions at various points on the concrete specimen. This relates to the field of size measurement technology. By setting the forward-backward and left-right propulsion mechanisms, the measuring component can be driven to move arbitrarily, and the scale plate in the measuring component can rotate, thereby enabling the measurement of lateral dimensions at various points in the forward-backward direction and longitudinal dimensions at various points in the horizontal direction, thus achieving measurement of various points on the specimen and improving the measurement efficiency of concrete specimens.