372 results about "Protractor" patented technology

A wall perpendicularity detection device comprises a base, a stand column is fixed to the upper side of the base, a lifting rod is slidably arranged on the stand column, and a measuring mechanism is arranged at the upper end of the lifting rod; the measuring mechanism comprises a through hole formed in the upper end of the lifting rod, a sliding rod is slidably assembled in the through hole, a connecting base is fixed to the left end of the sliding rod, a first spring is arranged between the connecting base and the side wall of the lifting rod, fixing shafts are fixed to the front end and the rear end of the connecting base, rotating rods are rotationally assembled to the fixing shafts, and measuring rods are fixed to the upper ends and the lower ends of the rotating rods. Through the combination of the hydraulic pushing assembly and the protractor, the perpendicularity of the wall can be accurately measured, when the wall deflects, the angle change of the rotating rod pushes the piston plate through hydraulic oil, then the pointer is driven to indicate the inclination angle of the wall on the protractor, the position of the protractor cannot be changed, and reading is accurate and convenient.

The utility model discloses a photovoltaic installation inclination angle intelligent calibration device, which comprises a bottom plate, the top of the bottom plate is rotatably connected with a protractor, the bottom of the bottom plate is provided with a groove, the inner wall of the groove is rotatably connected with an indicating rod, and the bottom plate, the protractor and the indicating rod are rotatably connected through a sucker seat. The suction cup seat comprises a base and a shaft rod installed at the top of the base in an inserted mode, through holes penetrating up and down are formed in the inner wall of the base and the inner wall of the shaft rod, and circle center positioning rods are installed on the inner walls of the through holes in a matched and inserted mode. And meanwhile, a circle center positioning rod is arranged in the center of the suction cup seat, so that the accuracy of detecting the installation inclination of the photovoltaic equipment and the convenience of operation are improved by conveniently and accurately finding the zero point position of the inclination angle required to be measured.

The utility model discloses tunnel blasting drilling auxiliary positioning equipment which comprises a U-shaped frame, supporting legs are installed at the bottom of the U-shaped frame, a protractor is installed at the upper end of the U-shaped frame through a supporting plate, the front side wall of the protractor is connected with an angle measuring scale in a rotating mode, the upper end of the U-shaped frame is connected with a vertical measuring scale in a horizontal sliding mode, and the vertical measuring scale is connected with a horizontal sliding rod. The upper end of the U-shaped frame is symmetrically connected with two connecting rods in a telescopic and sliding mode, and the upper ends of the two connecting rods are jointly and fixedly connected with a horizontal measuring scale. The tunnel blasting drill hole positioning device is reasonable in structural design, can perform auxiliary positioning on tunnel blasting drill holes, can perform telescopic adjustment, can perform accurate positioning on drill holes at different positions, and guarantees subsequent drilling and blasting quality.

The invention provides a surveying instrument for engineering surveying and mapping, and belongs to the technical field of engineering surveying and mapping. A surveying instrument for engineering surveying comprises a surveying instrument body, a base, a supporting plate, a connecting shaft, a concave positioning seat, a balance assembly, a clamping plate, a connecting frame, a protractor and a pointer. Before surveying and mapping, when the two clamping plates move oppositely to be away from the concave positioning seat, a balance system capable of automatically adapting to the ground gradient can be formed under the cooperation of the horizontal plate, the lifting rope and the balancing weight, and once the ground is inclined, the surveying and mapping instrument body deviates from the horizontal state, the balancing weight is driven by gravity, and the surveying and mapping instrument body is protected. The horizontal plate is gently pulled through the lifting rope, then the surveying instrument body is automatically adjusted to the horizontal position, the stability of a measurement datum is ensured, after horizontal correction is completed, the clamping plates move in the opposite directions again, the concave positioning base is tightly clamped, a stable supporting structure is formed, external interference is effectively isolated, and the measurement precision is improved.

The invention relates to the technical field of pavement detection, in particular to a thickness detection device and method.The thickness detection device comprises a sliding frame of a concave structure, four pulley blocks, a vertical frame and a semicircular protractor, the four pulley blocks are arranged at the bottom of the sliding frame and located at the four corners, and the vertical frame is fixedly installed in the center of the interior of the sliding frame; a clamping groove is formed in the upper portion of the middle section of the vertical frame, the semicircular protractor is fixedly installed on the inner wall of the bottom of the clamping groove, the two ends of the semicircular protractor extend to the exterior of the vertical frame, and a leveling mechanism is arranged in the vertical frame. The detection device and the measurement mechanism are kept perpendicular to the road surface, the measurement precision is effectively improved, meanwhile, loose and falling soil is continuously tamped in the drilling process, hole burying of the soil is reduced, the road surface depth detection efficiency is improved, and the internal structure of a road is conveniently observed.

The utility model relates to the technical field of steel structure measurement, and discloses a super high-rise steel structure measuring device, which comprises an angle measuring ruler and two angle measuring rods, one ends of the two angle measuring rods are rotationally connected to the middle part of the angle measuring ruler; the bottom of the protractor is connected with a fixing rod, the fixing rod is slidably sleeved with an adjusting piece used for adjusting the angle between the two protractor rods, and the adjusting piece is provided with an elastic pressing piece abutting against the fixing rod. One end, far away from the protractor, of the fixed rod is provided with a rod type driving piece for adjusting the length of the fixed rod; a telescopic piece used for pushing the adjusting piece to slide on the fixing rod is installed on the adjusting piece. The utility model provides a super high-rise steel structure measuring device, which solves the problem that when an equivalent angle rod is in contact with a steel structure, the surface of the steel structure is uneven or misoperation occurs, and the angle measuring rod is easy to rotate, so that the measured angle is deviated.

The embodiment of the utility model discloses an angle-adjustable laser calibration instrument, which comprises a mounting base, an adjustable damping hinge, a laser calibration instrument and an angle adjusting assembly, the angle adjusting assembly comprises an angle plate and an angle ruler; the bevel protractor is vertically and fixedly mounted on one side of the upper end face of the mounting base, one side of the angle plate is hinged to one side of the mounting base through the adjustable damping hinge, so that the angle plate can rotate around the axial direction of the adjustable damping hinge, and the current rotating angle of the angle plate is directly read through the bevel protractor; the laser calibration instrument is arranged on the upper end face of the angle plate, and the laser calibration instrument is adopted to draw an oblique line at a specified angle. According to the technical scheme of the utility model, the problem that the installation time of related tests is relatively long due to the fact that the installation and inspection of a loading point with angle requirements are difficult to meet and the accuracy of test data cannot be ensured because the use mode of the existing laser calibrator is that the laser calibrator is placed or fixed at a certain specified position to realize the laser calibration function is solved.

The utility model relates to the technical field of geological exploration measuring tools, in particular to an inclination angle measuring device for geological exploration, which comprises a main body frame, one end of the main body frame is connected with an adjusting structure in a sliding manner, and the adjusting structure comprises an adjusting frame body and a positioning part which is in threaded connection with the adjusting frame body; a plurality of positioning holes are formed in the adjusting frame body, and the positioning parts selectively penetrate through the positioning holes and penetrate into the ground; and the other end of the main body frame is rotationally connected with a measuring plate and a protractor. Through the matching design of the adjusting frame body and the positioning part, the positioning part penetrates into the ground inside and outside the main body frame, so that the device can be better fixed with the ground, and the stability in the measurement process is improved. And the adjusting frame body is designed in a sliding connection mode, so that the position and height of the device can be quickly adjusted. Meanwhile, due to the storage design of the positioning part, the device is more compact in a non-measurement state and is convenient to carry.

The utility model relates to the technical field of measuring poles, and discloses a measuring pole for municipal construction, which comprises a supporting column with a fixing structure fixedly mounted at the top, a limiting block for positioning fixedly mounted at the top of the supporting column, and a cross rod for fixing fixedly mounted on one side of the limiting block. An angle ruler for metering is fixedly mounted at the bottom of the cross rod, a rod body for measuring is fixedly mounted on one side of the cross rod, and a gravity center hammer for keeping vertical is fixedly mounted at the bottom of the rod body. According to the measuring marker post for municipal construction, through cooperative arrangement of the cross rod, the bevel protractor and the post body, the device can be more practical and convenient during use, the cross rod positions the post body, the top of the post body is fixed so that the post body can stretch out and draw back, and measurement of different heights and fixed installation of the bevel protractor and the cross rod are achieved; the bevel protractor and the device can be kept on the same line, so that the bevel protractor can be matched with a rod body to detect the inclination angle of the device, and the practicability and convenience of the device are improved.

A portable multipurpose subdivision graduation protractor comprises a main ruler, an auxiliary ruler and a precise hinge shaft unit. The main ruler is of a structure similar to a right triangle, two right-angle sides are main ruler arms, a bevel edge is replaced by a 135-degree fold line, and 45-degree, 135-degree and 90-degree external angles are provided and can be directly used as a fixed angle sample plate; the surface of the main ruler is provided with easily-identified fan-shaped distribution scales which are correspondingly arranged in two layers as difference reference lines; parallel step notches are formed in the upper edge of the vertical main ruler arm and are used for small-angle measurement; the auxiliary ruler is of a two-right-angle-side structure, the vertical side is an auxiliary ruler arm, and the auxiliary ruler can also be used as a fixed-angle sample plate. The horizontal side is a pointer arm, the end portion is of a fan-shaped structure, the radius is the same as that of the fan shape of the main ruler, and ruler reading visual errors can be reduced. Various interior angles can be widely measured and mapped, difference group scribed lines are effectively set, and an error conduction chain is shortened due to the fact that the whole ruler is not provided with redundant components. The precision machining problem is solved, and the measurement precision can be further improved.

The utility model relates to the technical field of measuring devices, and discloses a foldable measuring device for building design, which comprises a first ruler strip and a second ruler strip which are rotatably connected, the lower part of the front end of the first ruler strip and the upper part of the front end of the second ruler strip are both provided with scale marks, the upper part of the rear end of the first ruler strip is provided with a first groove, and a second groove is formed in the rear end of the second ruler strip. The lower portion of the front end of the second ruler strip is provided with a second groove which is the same as the first groove in size, the upper portion of the first ruler strip is provided with a sliding groove, the front end of the first ruler strip is detachably connected with a protractor, a sliding block of an inverted-T-shaped structure is arranged in the first groove in a sliding mode, and the front end of the sliding block penetrates through the sliding groove and then is connected to the protractor. The angle between the first ruler strip and the second ruler strip can be adjusted, and the protractor can be detachably installed on the first ruler strip to measure the upward angle through cooperation of the sliding block, the second lead screw and the second fastening knob. The device is simple in structure, convenient to use, easy to store and high in practicability.

1. The name of the design product: teaching demonstration protractor. 2. The use of the design product: angle teaching demonstration and angle measurement. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view. 5. Other circumstances that need to be explained: the moving ruler of the design product can be rotated by 90° along the vertex, and the arc scale can be folded up and down, forming the unfolded state and the closed state of the product.

The utility model relates to a police mark limit ruler, which belongs to the field of measuring tools and comprises a rotating seat, a protractor fixedly mounted on the front surface of the rotating seat, two measuring rulers rotationally connected inside the rotating seat and two gravity hammers arranged outside the rotating seat. A telescopic mechanism which extends to the outside of the measuring ruler and is used for performing telescopic treatment on the gravity hammer is arranged inside the measuring ruler, an angle adjusting mechanism which extends to the inside of the rotating seat and is used for performing angle adjustment on the two measuring rulers is arranged outside the rotating seat, and the telescopic mechanism comprises an electric push rod which is fixedly mounted inside the measuring rulers. According to the warning mark limiting ruler, the controller starts the electric push rod to stretch out and draw back, the electric push rod stretches out and draws back to drive the connecting rod to move left and right, and the connecting rod moves left and right to drive the gravity hammer to move left and right, so that the center point can be measured according to bilateral rails at different positions, and the measuring ruler is perpendicular to the measuring angle of the rail body; the advantage of convenient measurement is achieved.

The utility model relates to the technical field of optical measurement, and discloses a laser angle measuring tree height measuring instrument which comprises a scale base, a measuring mechanism is installed on the top of the scale base and used for detection and measurement, and a plurality of telescopic mechanisms are installed on the front side and the rear side of the bottom of the scale base at equal intervals. The telescopic mechanism is used for adjusting the height of the scale base; the measuring mechanism comprises a fixed short piece, the fixed short piece is installed on the top of the scale base, a supporting column is fixedly connected to the middle of the inner wall of the fixed short piece, and an arc-shaped support is fixedly connected to the top end of the supporting column. According to the utility model, the laser pen aims at the top of a tree, and the electronic protractor measures an angle alpha; the measuring mechanism is moved to the left inserting groove, the angle beta is measured after leveling, the distance L between two points of the scale of the base is read, the tree height is calculated through a formula, the instrument is made of a laser pen and an electronic protractor which are common objects, the cost is smaller than 100 yuan, operation is easy and convenient, and the instrument is worthy of popularization.

The utility model discloses a slope ratio measuring scale for road slope construction and acceptance, and relates to a slope ratio measuring scale for road subgrade slope construction and acceptance. The angle measuring scale is mainly designed for solving the problem that a common angle measuring scale is inconvenient to determine the slope ratio during slope construction at present. The ruler comprises a horizontal ruler arm and a rotating ruler arm, wherein the front end of the horizontal ruler arm is connected with the front end of the rotating ruler arm through a rotating shaft; the upper surface of the horizontal ruler arm is provided with a horizontal bubble, the rotating shaft is provided with a dial, and the lower half part of the dial is provided with slope ratio scales; the rotating ruler arm is provided with a triangular arrow; protractor scales are arranged at the lower half part of the dial, an elastic rope sleeve is sleeved on the horizontal ruler arm, and the lower end of an elastic rope connected with the elastic rope sleeve is connected with a sharp hammer ball. Red laser emitting lamps irradiating in the extension line direction of the center line of the ruler arms are fixed to the ends, away from the rotating shaft, of the horizontal ruler arm and the rotating ruler arm, and the axis positions of the left side face and the right side face of the rotating shaft are each provided with one red laser emitting lamp. The device has the advantage that the real-time excavation or filling state slope ratio can be conveniently and quickly measured.

This utility model discloses a mortise and tenon joint type police metal badge, including a metal badge body and a metal badge structure set at the front side; a protractor is set in the side groove, and a central connecting shaft is set at the middle of the end of the protractor; a side telescopic blade is set inside the metal badge body, and a length value is set on the side telescopic blade; a toggle block is set on the side of the side telescopic blade, and a limit moving groove is set on the outer side of the toggle block; by pushing and pulling the toggle block, the side telescopic blade can be extended and retracted; the protractor can be rotated to the outside for angle measurement or to the inside for concealment via the central connecting shaft. After the improvement of this utility model, some simple measuring tools can be integrated into the badge, which can provide preliminary reference data in emergency situations, thereby effectively improving the practicality of the police metal badge.

The utility model discloses a drainage tube fixing device capable of measuring the lifting angle of a bedside, which belongs to the field of medical instruments and comprises a protractor and a ruler strip, the back of the protractor is fixedly connected with a bed board fixing component, the front of the protractor is provided with a sliding groove, and the protractor is movably connected with the ruler strip through a movable shaft. The bottom end of the ruler strip is fixedly connected with the protractor through a locking bolt, and the top end of the ruler strip is fixedly connected with a gradienter; according to the drainage tube fixing device capable of measuring the lifting angle of the bed head, by arranging the protractor, the sliding groove, the ruler strip, the movable shaft, the locking bolt, the gradienter, the movable sleeve, the fixator and the laser lamp, measurement of the lifting angle of the bed head and measurement of the hanging height of the drainage tube can be integrated in the hanging process of the drainage tube; medical staff can conveniently, quickly and accurately find the fixed height of the drainage tube and the lifting angle of the bed head, so that convenience is brought to the work of the medical staff.

The utility model relates to the technical field of measuring tools, in particular to a measuring tool for detecting the bending angle of a floor reinforcing steel bar. Comprising a protractor, a fixed ruler fixedly connected to one side of the protractor and extending in the radial direction of the protractor, a movable ruler rotationally connected to the circle center of the protractor and extending in the radial direction of the protractor, and a locking assembly arranged at the circle center of the protractor and used for jointly locking or unlocking the protractor and the movable ruler. And the positioning devices are respectively arranged on the back surfaces of the fixed ruler and the movable ruler and can be fixed on a reinforcing steel bar. The measuring tool is simple in structure, convenient to operate, small in starting difficulty and not prone to being influenced by the proficiency of workers, and the accuracy of steel bar bending angle measurement is greatly improved.

This utility model belongs to the field of lathe tool measurement technology, and in particular to a vertical lathe tool measuring device, including a first vertical support frame, a base plate, and a second vertical support frame. Its features include: a protractor slidably connected to one side of the second vertical support frame; a horizontal rod fixedly connected to one side of the protractor; a movable plate provided on one side of the protractor; a limiter detachably connected to one side of the horizontal rod; connecting blocks provided on both sides of the movable plate; the horizontal rod passing through one of the connecting blocks; and the horizontal rod being fixedly connected to an adjacent connecting block. Before machining, the device measures the tool according to different shape machining requirements, selects a suitable tool, and measures the angle of tools used for a period of time, filtering out tools with high wear and replacing them to avoid large errors during machining caused by excessively worn tools, thereby ensuring product quality.

The invention discloses a puncture auxiliary device, and particularly relates to the technical field of medical instruments. The puncture auxiliary device comprises a protractor, an arc-shaped groove is formed in the protractor, and the distance between the center line of the arc-shaped groove and the circle center of the protractor is a preset value h; the scaleplate is movably installed on the protractor and is perpendicular to the bottom side plane of the protractor, the scaleplate can move along the arc-shaped groove, and a calibration line used for indicating an angle is arranged at the end, close to the protractor, of the scaleplate; the scale is sleeved with the moving assembly in a sliding mode, the moving assembly comprises a limiting component used for limiting a puncture needle, and a limiting hole used for limiting the puncture needle is formed in the limiting component. The device is simple in structure and convenient to operate, can realize single-person accurate puncture, effectively solves the problems of low efficiency and large error of multi-person manual measurement for avoiding ribs in a traditional method, and remarkably improves the safety and success rate of inclined puncture.

The multifunctional woodworking ruler comprises a first main body, a second main body, a protractor and a positioning assembly, and the first main body is provided with a first straight line edge and a second side edge; the second main body is provided with a first side edge and a second straight edge; the protractor is mounted on the first main body; the first main body and the second main body are rotatably connected; the second main body is provided with a groove body for accommodating the protractor; the first main body and the second main body can relatively rotate to a closing position and a maximum opening position, and at the closing position, the protractor is accommodated in the groove body; at the maximum opening position, the protractor is pulled out of the groove body; the second body is provided with a positioning assembly acting on the protractor. The multifunctional woodworking ruler has the functions of measurement, line drawing, angle measurement, levelness measurement and the like, the use requirements of users are met, and too many tools do not need to be carried; the multifunctional woodworking ruler can be used for drawing triangles and parallel lines, measuring angles and the like, the structure is compact, the first main body and the second main body can be randomly positioned in a rotatable range, and the measurement is more accurate.

The invention relates to the technical field of interventional therapy, and particularly discloses a percutaneous puncture navigation system which comprises a camera module and a display module, the display module displays a main picture shot by the camera module, and an electronic protractor picture is suspended on the main picture as a floating layer; a puncture layer S, a puncture point A, a puncture angle alpha, a puncture depth D and a puncture target point T of a focus area of a patient are determined, a camera module is arranged on one side of the patient in the scanning direction, and the camera module aims at the body surface of the focus area to shoot, so that a round point O in a picture of the electronic protractor coincides with the puncture point A of the body surface of the patient; a datum line in an electronic protractor picture is parallel to the horizontal plane; the puncture needle coincides with the angle line of the angle alpha in the picture of the electronic protractor, and the puncture needle enters the depth D along the angle line alpha of the electronic protractor and then reaches the puncture target point T. The puncture cloth needle arranged as the puncture needle achieves the visual navigation function, reduces the puncture difficulty, improves the puncture precision and reduces the puncture scanning frequency.

The utility model provides an anchor cable drilling angle measuring device which comprises three measuring rods which are arranged side by side in parallel and are adjustable in length, a locking mechanism which is arranged on the measuring rods and is used for fixing the length of the measuring rods, and a plurality of positioning pieces which are arranged along the length direction of the measuring rods, the adjusting mechanism is connected to the end portion of the measuring rod and used for adjusting the diameter of the positioning piece, the protractor is arranged at the end portion of the adjusting mechanism in the axis direction of the measuring rod, and the plumb bob assembly is connected with the center point of the protractor. A stable system is formed among the measuring rod, the positioning piece and the drill hole, it can be ensured that the measuring device and the drill hole are in a coaxial state, measurement errors caused by shaking or deviation of the device are effectively prevented, the accuracy and reliability of measurement are improved, the protractor is used in cooperation with the plumb bob assembly, and the measuring accuracy and reliability are improved. The angle measurement is more visual and accurate, the operation is simple, and the measurement working efficiency is improved.

The utility model relates to the technical field of coal mine exploration, in particular to a transient electromagnetic geophysical prospecting line frame rotating device for a coal mine, which comprises two placing rods, a cross rod is fixedly connected to the surfaces of the two placing rods, a protractor is rotatably connected to the side surface of the cross rod, and a rotating shaft is rotatably connected to the side surface of the protractor. A measuring rod is fixedly connected to the surface of the rotating shaft, a rotating plate is fixedly connected to the side face of the measuring rod, a wire frame body is fixedly connected to the side, away from the measuring rod, of the rotating plate, and a limiting device is arranged on the side, away from the wire frame, of the protractor and comprises a half gear. The half gear is fixedly connected to the end, away from the protractor, of the rotating shaft, and a mounting rod is fixedly connected to the side, close to the half gear, of the protractor. According to the utility model, the problem that the accuracy of a measurement result is influenced because the wire frame is often required to be supported by a worker after the angle adjustment of the wire frame is completed and is difficult to ensure that the wire frame does not deflect is solved.

The steel bar bending construction device with the angle measuring function comprises a base and a steel pipe welded to the side face of the base, a to-be-bent steel bar extends out of the steel pipe, and the steel bar bending construction device further comprises a protractor arranged at the end of the base; the spring steel is arranged on the base; the spring steel is provided with the first extending end, and the to-be-bent steel bar part abuts against the spring steel; the arc-shaped groove is formed in the protractor, and the first extending end partially extends out of the arc-shaped groove; the spring steel is provided with a second extending end connecting base; and the first scales are arranged on the protractor. One constructor can bend the to-be-bent steel bar while reading the bending angle of the to-be-bent steel bar in real time, and the bending efficiency is effectively improved. And the influence of rebound of the to-be-bent steel bar on the bending precision is reduced through the compensation value, and the bending precision of the to-be-bent steel bar is effectively improved.

The utility model relates to the technical field of stationery, and discloses a multifunctional stationery ruler which comprises a measuring ruler body, the right side of the measuring ruler body is fixedly connected with a standby eraser groove, the right side of the measuring ruler body is fixedly connected with a clamping head, and the side, away from the measuring ruler body, of the clamping head is connected with a clamping type eraser in a clamped mode. The bottom of the measuring ruler body is fixedly connected with a protractor body, the left side of the measuring ruler body is fixedly connected with an isosceles triangular ruler, and the bottom of the measuring ruler body is fixedly connected with a slender triangular ruler. According to the multifunctional stationery ruler, the angle measuring function, the eraser and the ruler body are integrally designed, the use diversity of the stationery ruler can be guaranteed, the ruler body can store various pen points, when temporary writing is needed, different pen points can be effectively used for operation, and the purpose of multifunctional use is achieved on the whole; and the practicability of the stationery ruler is greatly enhanced.

The application provides a ranging device and a casing following rotary drilling hole forming process, and relates to the technical field of ranging equipment. The ranging device comprises a central distance setting mechanism, a support box, a telescopic sleeve and a positioning pipe. The central distance setting mechanism comprises an insertion shaft and a connecting shaft. The top of the connecting shaft penetrates through the support box and is connected with a protractor. A synchronous part is installed in the support box. The synchronous part comprises a synchronous belt, a synchronous slider and two synchronous wheels. The ranging sensor is used to measure the distance between the central axis of the connecting shaft and the outer surface of the positioning pipe. The casing following rotary drilling hole forming process can continue drilling and hole forming until the preset hole depth is reached after the whole casing is installed. The technical scheme provided by the application provides the functions of fast distance setting and point setting for the installation of the calibration rod, and can ensure that the calibration rod maintains a vertical state when it is hammered into the ground, thereby avoiding the problems of deviation and inclination when the calibration rod is hammered.

This is a protractor that allows the angle to be clearly recognized visually. The scale and numbers are printed on either the left or right half of the semicircular protractor, in the same way on the front and back. As can be seen in the front and back views, the scale starts at 0°, with the 1° scale being the shortest, and is colored in a staircase pattern from the 2° scale to 5°, so that the angle can be recognized by the colored length. Next, the next starting point is 6°, and similarly, the scales are colored in a staircase pattern up to 10°. Since the scale of this product has a different colored length for each degree, the angle can be recognized quickly and reliably compared to conventional scales with equal intervals. In the front and back views, the scale is colored in black, but coloring it in a staircase pattern in color makes it easier to recognize. Figures 1 and 2, which explain the usage state, show an example of using this product as a hallux valgus measuring device. Figure 1, which explains how to use the device, shows the hallux valgus angle of the right foot being measured, and Figure 2 shows the hallux valgus angle of the left foot being measured after the device has been turned upside down. It can be seen at a glance that the hallux valgus angle on both the left and right feet is 35°.

The utility model provides a side slope sloping angle measuring device which comprises a support, an angle scale, a rotating beam and a rotating balance weight, the angle scale is arranged on the support, the rotating beam is connected with the angle scale, and the rotating balance weight is located at the end of the rotating beam and used for driving the rotating beam to rotate around the axis of the angle scale. The device is convenient to move, use and measure, is not limited by whether the construction of the slope top and the slope bottom is completed or not, can check the slope angle of the slope at any time and control the construction precision even if the construction of the slope is not completed, avoids reworking due to the fact that problems are found only at the end of a project or during quality inspection, and improves the construction efficiency and the construction quality; the first supporting arm and the second supporting arm are arranged, so that measurement and reading of the device can be carried out bidirectionally, it is not needed to distinguish the front side and the back side specially during use, and use is more convenient.