Double-shaft height measuring scale

Abstract

The utility model discloses a double-shaft height measuring scale, which comprises a base, a first connecting rod, a second connecting rod, a measuring element and a processor, one end of the first connecting rod is hinged with the base, the other end of the first connecting rod is hinged with one end of the second connecting rod, and the other end of the second connecting rod is a measuring head; the measuring element is used for detecting an included angle between the first connecting rod and the vertical direction and an included angle between the first connecting rod and the second connecting rod; the processor is arranged in the base, and the processor is electrically connected with the measuring element so as to calculate the height value of the measuring head according to the detected angle information. The measuring scale provided by the utility model can quickly and efficiently measure parameters such as horizontal weld height, weld leg height, undercut depth, installation error and the like, and is convenient to use and operate, high in efficiency and good in precision.

Description

Technical Field

[0001] This utility model relates to the field of nondestructive testing technology, specifically to a dual-axis height measuring ruler. Background Technology

[0002] In the field of non-destructive testing in nuclear power plants, especially in weld height measurement, semi-circular height measuring rulers (such as...) are currently commonly used. Figure 1 (As shown) This measuring scale is used to measure dimensions such as horizontal weld height, weld leg height, undercut depth, and installation error. The system works by manually moving a fan-shaped measuring scale in a circular motion around a fixed point. The rotation angle is measured using this circular motion, and the relevant dimensions are calculated from the rotation angle.

[0003] While this method can measure the height of the weld, it also has the following problems: The measuring ruler uses a graduated dial, which is inconvenient, not intuitive, and inefficient to read. Furthermore, the scale is in millimeters, and the last digit is an estimated value, resulting in measurement data that is only accurate to 0.1mm after estimation, and the overlap of repeated measurements is not high. The measuring ruler uses a single-axis rotation method, which means that when the base is fixed, it can only measure points on the arc. When multiple points or multiple parameters need to be measured, the base must be moved. For example, measuring the weld leg height and undercut depth requires moving the base, making it extremely inconvenient to use and inefficient. Utility Model Content

[0004] The purpose of this invention is to address the problems of inconvenience and low measurement efficiency of existing measuring rulers by providing a dual-axis height measuring ruler. This measuring ruler can quickly and efficiently measure parameters such as horizontal weld height, weld leg height, undercut depth, and installation error. It is easy to use, highly efficient, and accurate.

[0005] This utility model is achieved through the following technical solution:

[0006] This utility model provides a dual-axis height measuring ruler, including a base, a first connecting rod, a second connecting rod, a measuring element, and a processor; one end of the first connecting rod is hinged to the base, and the other end of the first connecting rod is hinged to one end of the second connecting rod, the other end of the second connecting rod being a measuring head; the measuring element is used to detect the angle between the first connecting rod and the vertical direction, as well as the angle between the first connecting rod and the second connecting rod; the processor is disposed in the base, and the processor is electrically connected to the measuring element to calculate the height value of the measuring head based on the detected angle information.

[0007] As a preferred embodiment of this utility model, the first connecting rod is hinged to the base via a first hinge, and the first connecting rod is hinged to the second connecting rod via a second hinge.

[0008] As a preferred embodiment of this utility model, the measuring element includes a first angle sensor and a second angle sensor; the first angle sensor is built into the first hinge and is used to detect the angle between the first link and the vertical direction; the second angle sensor is built into the second hinge and is used to detect the angle between the first link and the second link.

[0009] As a preferred embodiment of this utility model, a power module is provided in the base, which is used to supply power to the measuring element and the processor.

[0010] As a preferred embodiment of this utility model, the power module includes a battery.

[0011] As a preferred embodiment of this utility model, the base is provided with a charging port, which is used to charge the battery.

[0012] As a preferred embodiment of this utility model, a digital display is provided on the base, and the digital display is electrically connected to the processor to display the calculated height value.

[0013] As a preferred embodiment of this utility model, a power switch is provided on the base.

[0014] As a preferred embodiment of this utility model, the lengths of the first connecting rod and the second connecting rod are equal.

[0015] As a preferred embodiment of this utility model, the measuring head is pointed.

[0016] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0017] This invention uses a measuring element to detect the angle between the first connecting rod and the vertical direction, as well as the angle between the first connecting rod and the second connecting rod. The detected angle information is transmitted to a processor, which calculates the height of the measuring head in real time based on the detected angle information and displays it on a digital display. This not only makes reading convenient but also provides high measurement accuracy, greatly improving detection efficiency. Multiple positions on a plane can be measured at once. Using this measuring ruler, parameters such as horizontal weld height, weld leg height, undercut depth, and installation error can be measured quickly and efficiently. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the exemplary embodiments of this utility model, the drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this utility model and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings:

[0019] Figure 1 A schematic diagram of the detection ruler structure used in the prior art;

[0020] Figure 2 This is a front view of the dual-axis height measuring ruler of this utility model;

[0021] Figure 3 This is a perspective view of the dual-axis height measuring ruler of this utility model;

[0022] Figure 4 This is a simplified diagram showing the height position of the measuring head in this utility model;

[0023] Figure 5 This is a simplified diagram of the measuring head height position in this utility model;

[0024] Figure 6 This is a simplified diagram of the height position of the measuring head in this utility model.

[0025] The attached diagram shows the markings and corresponding component names:

[0026] 1-Base, 11-Digital display, 2-First connecting rod, 3-Second connecting rod, 4-First hinge, 5-Second hinge. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0029] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary and secondary relationship of the indicated technical features.

[0030] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0031] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A exists, A and B exist simultaneously, and B exists. In addition, the character " / " in this document generally indicates that the related objects before and after it have an "or" relationship.

[0032] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0033] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces), unless otherwise explicitly specified.

[0034] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0035] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0036] Please refer to Figures 2 to 6 This application provides a dual-axis height measuring ruler, comprising a base 1, a first connecting rod 2, a second connecting rod 3, a measuring element, and a processor; one end of the first connecting rod 2 is hinged to the base 1, and the other end of the first connecting rod 2 is hinged to one end of the second connecting rod 3, the other end of the second connecting rod 3 being a measuring head; the measuring element is used to detect the angle between the first connecting rod 2 and the vertical direction, and the angle between the first connecting rod 2 and the second connecting rod 3; the processor is disposed in the base 1, and the processor is electrically connected to the measuring element to calculate the height value of the measuring head based on the detected angle information.

[0037] In this embodiment, the base 1 has a box-like structure with an internal cavity, and the processor can be disposed within the internal cavity of the base 1. The top surface of the base 1 has a hinge seat, and the end of the first connecting rod 2 is connected to this hinge seat. The first connecting rod 2 and the second connecting rod 3 can be in the form of a slatted structure. The hinge axes of the first connecting rod 2 and the second connecting rod 3 are parallel to the hinge axes of the first connecting rod 2 and the base 1. When the second connecting rod 3 is pulled by hand, the angle between the first connecting rod 2 and the second connecting rod 3, as well as the angle between the first connecting rod 2 and the vertical direction, will change. Therefore, the aforementioned angle information is measured by a measuring element and transmitted to the processor, which then calculates the height value of the measuring head in real time.

[0038] According to some embodiments of this application, the first connecting rod 2 is hinged to the base 1 via a first hinge 4, and the first connecting rod 2 is hinged to the second connecting rod 3 via a second hinge 5. The first hinge 4 connects the end of the first connecting rod 2 to the hinge seat on the top surface of the base 1, and the second hinge 5 connects the ends of the first connecting rod 2 and the second connecting rod 3, thereby fulfilling the requirements for the installation and flexible rotation of the first connecting rod 2 and the second connecting rod 3.

[0039] According to some embodiments of this application, the measuring element includes a first angle sensor and a second angle sensor; the first angle sensor is built into the first hinge 4 and is used to detect the angle between the first link 2 and the vertical direction; the second angle sensor is built into the second hinge 5 and is used to detect the angle between the first link 2 and the second link 3.

[0040] According to some embodiments of this application, a power module is provided in the base 1, which is used to supply power to the measuring element and the processor.

[0041] According to some embodiments of this application, the power module includes a battery. In this embodiment, a lithium battery may be used, which is built into the internal cavity of the base 1 and can be repeatedly charged and used.

[0042] According to some embodiments of this application, the base 1 is provided with a charging port, which is connected to the power module and is used to charge the battery through a charger.

[0043] According to some embodiments of this application, a digital display 11 is provided on the base 1. The digital display 11 is electrically connected to the processor to display the calculated height value. By providing the digital display 11, the height value of the measuring head calculated by the processor can be directly displayed, facilitating reading during testing.

[0044] According to some embodiments of this application, a power switch is provided on the base 1. The power switch is connected to the lithium battery and the processor, and the power is turned on by operating the power switch when using the measuring ruler. Part of the power switch is exposed on the surface of the base 1 housing for easy operation by hand.

[0045] According to some embodiments of this application, the first link 2 and the second link 3 are of equal length. By designing the first link 2 and the second link 3 to be of equal length, an isosceles triangle can be formed, which facilitates the calculation of the measuring head height value.

[0046] According to some embodiments of this application, the measuring head is pointed. By designing the measuring head as pointed, the pointed end of the second link 3 can better contact the part to be measured during measurement, improving the accessibility of the measuring part.

[0047] When in use, turn on the power switch and manually pull the end of the second link 3 to the designated position to complete the height measurement. The measurement principle is as follows: To simplify calculations and facilitate description, the structure of the measuring ruler is simplified. The center of the first hinge 4 is point A, the center of the second hinge 5 is point B, the end of the second link 3 is point C, and the projection of point A onto the bottom surface of the base 1 is point O.

[0048] Let the angle measured by the first angle sensor be θ1, the angle measured by the second angle sensor be θ2, and the length of the first link 2 be L. AB The length of the second link 3 is L. BC During the design, L AB and L BC Designed to be of equal length, i.e., L AB =L BC , where h is a known quantity. The height of base 1 is h. AO , is a known quantity; the measured height is represented by h. CO This indicates the quantity that needs to be measured in this application.

[0049] 1) When θ1 = θ2 / 2, the measuring head C moves in a straight line, meaning that point C and the center A of the first hinge 4 are on the same horizontal plane, as shown below. Figure 4 As shown, at this time, the measured height h CO =h AO.

[0050] 2) When θ1 > θ2 / 2, the measuring head C is below the center point A of the first hinge 4, as shown below. Figure 5 As shown, h at this time CO =h AO -h', firstly, L is calculated using θ2 measured by the second sensor. AC The calculation formula is:

[0051] L 2 AC =L 2 AB +L 2 BC -2L AB L BC Cosθ2;

[0052] Using L AC and L AB Calculate Cosθ3 using the following formula:

[0053] Cosθ3=(L 2 AB +L 2 AC -L 2 BC ) / 2L AB L AC ;

[0054] θ3=arcCos((L 2 AB +L 2 AC -L 2 BC ) / 2L AB L AC );

[0055] θ4 = 180° - θ1 - θ3;

[0056] h' = L AC Cosθ4;

[0057] The height measured at this time is: h CO =h AO -h'.

[0058] 3) When θ1 < θ2 / 2, the measuring head C is above the center point A of the first hinge 4, as shown below. Figure 6 As shown, h at this time CO =h AO +h', firstly, L is calculated using θ2 measured by the second sensor. AC The calculation formula is:

[0059] L2 AC =L 2 AB +L 2 BC -2L AB L BC Cosθ2;

[0060] Using L AC and L AB Calculate Cosθ3 using the following formula:

[0061] Cosθ3=(L 2 AB +L 2 AC -L 2 BC ) / 2L AB L AC ;

[0062] θ3=arcCos((L 2 AB +L 2 AC -L 2 BC ) / 2L AB L AC );

[0063] θ4 = 90° - θ1 - θ3;

[0064] h' = L AC Sinθ4;

[0065] The height measured at this time is: h CO =h AO +h'.

[0066] The measuring ruler in this application uses measuring elements to detect the angle between the first connecting rod 2 and the vertical direction, as well as the angle between the first connecting rod 2 and the second connecting rod 3. The detected angle information is transmitted to the processor, which automatically calculates the height value of the measuring head in real time based on the detected angle information and displays it on the digital display 11. This not only facilitates reading but also provides high measurement accuracy, which can be improved by an order of magnitude compared to manual data estimation. At the same time, it can greatly improve the detection efficiency, allowing for the measurement of multiple positions on a plane with a single placement. Using this measuring ruler, parameters such as horizontal weld height, weld leg height, undercut depth, and installation error can be measured quickly and efficiently.

[0067] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A dual-axis height measuring ruler, characterized in that, The device includes a base, a first connecting rod, a second connecting rod, a measuring element, and a processor. One end of the first connecting rod is hinged to the base, and the other end of the first connecting rod is hinged to one end of the second connecting rod, the other end of which serves as a measuring head. The measuring element is used to detect the angle between the first connecting rod and the vertical direction, as well as the angle between the first connecting rod and the second connecting rod. The processor is disposed in the base and is electrically connected to the measuring element to calculate the height value of the measuring head based on the detected angle information.

2. The dual-axis height measuring ruler according to claim 1, characterized in that, The first connecting rod is hinged to the base via a first hinge, and the first connecting rod is hinged to the second connecting rod via a second hinge.

3. The dual-axis height measuring ruler according to claim 2, characterized in that, The measuring element includes a first angle sensor and a second angle sensor; the first angle sensor is built into the first hinge and is used to detect the angle between the first link and the vertical direction; the second angle sensor is built into the second hinge and is used to detect the angle between the first link and the second link.

4. The biaxial height measuring ruler according to any one of claims 1-3, characterized in that, The base is equipped with a power module, which is used to supply power to the measuring element and the processor.

5. The dual-axis height measuring ruler according to claim 4, characterized in that, The power module includes a battery.

6. The dual-axis height measuring ruler according to claim 5, characterized in that, The base is provided with a charging port, which is used to charge the battery.

7. The biaxial height measuring ruler according to any one of claims 1-3, characterized in that, The base is equipped with a digital display, which is electrically connected to the processor to display the calculated height value.

8. The biaxial height measuring ruler according to any one of claims 1-3, characterized in that, A power switch is provided on the base.

9. The biaxial height measuring ruler according to any one of claims 1-3, characterized in that, The first link and the second link have the same length.

10. The biaxial height measuring ruler according to any one of claims 1-3, characterized in that, The measuring head is pointed.

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