Rail brace facade measuring vernier caliper

Abstract

The utility model provides a rail brace outer facade vernier caliper, which is composed of an L-shaped main ruler, an F-shaped auxiliary ruler, a main ruler vernier, a main ruler frame, an auxiliary ruler frame and a plurality of fastening screws, the L-shaped upper jaw of the main ruler is matched with the upper inclined surface of the rail brace, the main ruler vernier is equipped with a main ruler vernier lower jaw which is attached to the lower inclined surface of the rail brace and used for measuring the outer facade height of the rail brace, the bottom of the main ruler is slidably matched with the main ruler frame, the main ruler frame is vertically fixedly connected with the horizontal auxiliary ruler frame, the auxiliary ruler frame is horizontally slidably matched with the horizontal auxiliary ruler, and the F-shaped right jaw of the auxiliary ruler is matched with the bottom side edge of the rail brace and used for measuring the outer facade width of the rail brace. The utility model has the advantages of few components, simple structure, simple operation, convenient reading, accurate, stable and reliable measurement results, and convenience in measuring the vertical height and width of the outer facade of the rail brace, and is suitable for promotion.

Description

Technical Field

[0001] This utility model belongs to the technical field of physical measurement and testing vernier calipers, specifically relating to a vernier caliper for measuring the exterior facade of a steel rail support. Background Technology

[0002] Currently, in China, the existing measuring tools for inspecting the dimensions of rail braces in rail transit turnout products are poorly adaptable, inefficient, and fail to effectively control product quality. Traditional methods for measuring the external height and width of rail braces mainly rely on general-purpose vernier calipers and measuring tapes, visually checking for alignment with baselines. However, these methods are unreliable in terms of stability and accuracy.

[0003] Chinese Patent No. CN221992569U discloses a turnout rail support testing gauge, which has a relatively complex structure, is inconvenient to operate, and also suffers from inconvenient readings in height measurement. To address this, the following improved technical solution is proposed. Utility Model Content

[0004] The technical problem solved by this utility model is to provide a vernier caliper for measuring the exterior facade of a rail support, thereby solving the technical problem of inconvenient measurement of the vertical height and width of the exterior facade of a rail support.

[0005] The technical solution adopted in this utility model is: a vernier caliper for measuring the exterior of a rail support, which consists of an L-shaped main scale, an F-shaped secondary scale, a main scale vernier, a secondary scale frame, a main scale frame, and several fastening screws.

[0006] The main scale is set vertically, and the L-shaped upper jaw at the top of the main scale is used to match and position the upper inclined surface of the rail support; the root of the L-shaped upper jaw is the zero position of the main scale graduation line; the vertical body of the main scale is in contact with the outer surface of the rail support; the main scale vernier in the middle of the main scale slides to adapt to the vertical displacement of the main scale vernier, and the lower jaw of the main scale vernier is in contact with the lower inclined surface of the rail support; the reading of the main scale graduation line corresponding to the lower jaw of the main scale vernier is the height of the outer surface of the rail support.

[0007] The main scale has a vertically sliding bottom that adapts to the vertically set main scale frame. The back of the main scale frame is vertically fixed to the horizontally set auxiliary scale frame. The auxiliary scale frame slides horizontally to adapt to the horizontally set auxiliary scale. The vertical cross structure formed by the auxiliary scale frame and the main scale frame is the auxiliary scale vernier of the auxiliary scale. The F-shaped right claw at the right end of the auxiliary scale is used to match and position the bottom side of the rail support. The root of the F-shaped right claw is the zero position of the auxiliary scale graduation. The auxiliary scale graduation readings corresponding to the auxiliary scale frame and the main scale frame used as the auxiliary scale vernier are the width of the outer facade of the rail support.

[0008] The main scale vernier, the vernier frame, and the main scale frame are each equipped with a fastening screw to lock their respective sliding positions.

[0009] In the above technical solution: the L-shaped upper claw is set up upside down and is integrally formed with the main scale; the positioning slope made on the inner side of the L-shaped upper claw is positioned to fit the upper slope of the rail support.

[0010] In the above technical solution: the F-shaped right claw is set up upside down and is integrally formed with the auxiliary scale; the right-angle positioning surface of the F-shaped right claw is positioned to fit the bottom side of the rail support.

[0011] In the above technical solution: the reading of the main scale line corresponding to the root of the vernier claw is the height of the outer facade of the rail support.

[0012] In the above technical solution: the reading of the vernier scale line corresponding to the right edge of the vernier scale frame is the width of the outer facade of the rail support.

[0013] In the above technical solution: the vernier frame of the main scale vernier has a clearance notch for easy reading.

[0014] Advantages of this utility model compared to the prior art:

[0015] 1. This utility model has fewer components, a simplified structure, is easy to operate, convenient to read, and provides accurate, stable, and reliable measurement results, thus solving the technical problem of inconvenient measurement of the vertical height and width of the outer facade of the rail support.

[0016] 2. The L-shaped upper jaw and F-shaped right jaw of this utility model are fixed together with the main scale and the vernier scale respectively, forming a whole. This design makes the vernier caliper more stable during use, reduces errors caused by improper operation or external factors (such as vibration), improves the accuracy and reliability of measurement, provides better precision performance, reduces potential failure points and wear points, has stronger durability and longer service life, has a relatively simple structure, is easier to maintain, and users do not need to worry about loosening or damage, reducing maintenance costs and repair difficulty, and making measurements more stable and accurate.

[0017] 3. The notch design of the main scale vernier scale in this utility model allows the scale lines on the vernier scale to be more clearly exposed in the user's line of sight, reducing reading errors caused by obstructed vision. Users can directly and accurately read the scale values ​​on the vernier scale, improving measurement accuracy. The scale lines on the main scale are easier to observe and read, making it easy to read the scale values, improving reading convenience and work efficiency. The overall structure is more compact and reasonable, reducing the size and weight of the vernier caliper, and improving portability and user comfort.

[0018] 4. This utility model allows for direct reading of the vernier caliper scale value after the vernier position is locked by tightening the fixing screw, eliminating the need for complex calculations or conversions. The intuitive reading method makes the measurement process simpler and faster. The measurement method is divided into two steps: height measurement and width measurement. Each step has clear operating instructions and positioning methods, making the measurement process clear and easy to operate. By adjusting the vernier position, it can adapt to the measurement needs of rail supports of different sizes and shapes. This flexibility makes the vernier caliper more convenient and efficient in practical applications. Due to its high precision and simple operation, the vernier caliper can quickly complete the measurement of the outer facade of rail supports, shortening railway maintenance and repair time and improving work efficiency. This precise measurement and intuitive reading method reduces errors and uncertainties caused by manual measurement, helping to improve the reliability and accuracy of measurement results and providing a guarantee for the safe operation of railways. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a diagram showing the usage state of the steel rail support when measuring the height of the outer facade of the present invention.

[0021] Figure 3 This is a diagram showing the usage state of the rail support width measurement reading of this utility model;

[0022] In the diagram: 1-Main scale, 101-L-shaped upper jaw, 1-1 Main scale graduation zero position, 2-Vertex scale, 201-F-shaped right jaw, 2-1 Vertex scale graduation zero position, 3-Main scale vernier, 301-Main scale vernier lower jaw, 4-Vertex scale frame, 5-Main scale frame, 6-Fasting screw. Detailed Implementation

[0023] The following will refer to the appendix in the embodiments of this utility model. Figure 1-3 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] (like Figure 1 (As shown) A vernier caliper for measuring the exterior of a rail support consists of an L-shaped main scale 1, an F-shaped secondary scale 2, a main scale vernier 3, a secondary scale frame 4, a main scale frame 5, and several fastening screws 6. Compared to a turnout rail support testing measuring tool disclosed in Chinese Patent No. CN221992569U, it has fewer components, a simpler structure, lower cost, and is easier to use.

[0025] (like Figure 2 As shown, the main scale 1 is vertically set. The L-shaped upper claw 101 at the top of the main scale 1 is used to match and position the upper inclined surface of the rail support. The root of the L-shaped upper claw 101 is the zero position 1-1 of the main scale graduation. The vertical body of the main scale 1 is in contact with the outer surface of the rail support. The main scale vernier 3 in the middle of the main scale 1 slides and adapts to vertical displacement. The lower claw 301 of the main scale vernier 3 is in contact with the lower inclined surface of the rail support. The reading of the main scale graduation corresponding to the lower claw 301 is the height of the outer surface of the rail support. It can be seen that the measurement and reading of the height of the outer surface of the rail support is simple, convenient and intuitive, and requires no calculation.

[0026] (like Figure 3 As shown, the main ruler 1 is vertically pulled and slidable at its bottom to fit the vertically set main ruler frame 5. The back of the main ruler frame 5 is vertically fixed to the horizontally set secondary ruler frame 4. The secondary ruler frame 4 slides horizontally to fit the horizontally set secondary ruler 2. The vertically intersecting structure formed by the secondary ruler frame 4 and the main ruler frame 5 is the secondary ruler vernier of the secondary ruler 2. The F-shaped right claw 201 on the right side of the secondary ruler 2 is used to match and position the bottom side of the rail support. The root of the F-shaped right claw 201 is the zero position 2-1 of the secondary ruler graduation line. The reading of the secondary ruler graduation line corresponding to the secondary ruler frame 4 and the main ruler frame 5, which are used as the secondary ruler vernier, is the width of the outer facade of the rail support. Similarly, the measurement and reading operation of the width of the outer facade of the rail support is simple, intuitive and convenient.

[0027] The main scale vernier 3, the secondary scale frame 4, and the main scale frame 5 are each equipped with a fastening screw 6 to lock their respective sliding positions. The position locking is simple and reliable, and the measurement results are accurate, stable, and reliable.

[0028] In the above embodiments: the L-shaped upper claw 101 is inverted and integrally formed with the main scale 1; the positioning inclined surface formed on the inner side of the L-shaped upper claw 101 is positioned to fit the upper inclined surface of the rail support.

[0029] It should be noted that the L-shaped upper jaw 101 and the main scale 1 of the integrated structure are fixed together, forming a single unit. This design makes the vernier caliper more stable during use. By reducing moving parts, the integrated structure reduces errors caused by improper operation or external factors (such as vibration), thereby improving measurement accuracy and reliability. The integrated structure, due to its stability, provides better precision performance. In scenarios requiring high-precision measurement, such as precision machining and quality inspection, the integrated structure vernier caliper is more advantageous. Because the integrated structure reduces moving parts and connection points, it reduces potential points of failure and wear, making the integrated structure vernier caliper more durable and longer-lasting. The relatively simple structure of the integrated structure also simplifies maintenance; users do not need to worry about loosening or damage to moving parts, thus reducing maintenance costs and repair difficulty. Furthermore, the integrated structure vernier caliper is more stable and accurate when measuring regular shapes (such as straight lines and planes).

[0030] Similarly, in the above embodiments: the F-shaped right claw 201 is inverted and integrally formed with the auxiliary ruler 2; the right-angle positioning surface of the F-shaped right claw 201 is positioned and fits the bottom side of the matching rail support.

[0031] In the above embodiments: the reading of the main scale graduation corresponding to the root of the main scale vernier jaw 301 is the height of the outer facade of the rail support. In the above embodiments: the reading of the secondary scale graduation corresponding to the right edge of the secondary scale frame 4 is the width of the outer facade of the rail support. The measurement results are intuitive, simple, and efficient.

[0032] In the above embodiment, the vernier frame of the main scale vernier 3 has an obstacle clearance notch for easy reading. The notch design allows the scale lines on the vernier scale to be more clearly exposed to the user's line of sight, reducing reading errors caused by obstructed vision. Users can directly and accurately read the scale values ​​on the vernier scale, thereby improving measurement accuracy. The obstacle clearance notch makes the scale lines of the vernier scale easier to observe and read. Users can easily read the scale values ​​without adjusting the position or angle of the vernier caliper, thus improving the convenience of reading. This is particularly important for applications requiring frequent measurements, significantly improving work efficiency. The obstacle clearance notch design is part of the vernier caliper structure optimization. By rationally arranging the position and size of the obstacle clearance notch, the overall structure of the vernier caliper can be made more compact and reasonable, which helps to reduce the size and weight of the vernier caliper, improving portability and user comfort.

[0033] This utility model relates to a method for measuring the exterior facade of a rail support using vernier calipers, which includes the following specific steps:

[0034] (combination) Figure 2Step S1: Measurement of the height of the outer facade of the rail support.

[0035] The specific steps include the following:

[0036] Step S101: Attach the outer surface of the rail support to the vertical body of the main ruler 1.

[0037] Step S102: Move the rail support upward so that the upper inclined surface of the rail support fits against the inner side of the L-shaped upper claw 101 at the top of the main scale 1.

[0038] Step S103: Move the main scale vernier 3 upward so that the lower jaw 301 of the main scale vernier 3 fits against the lower inclined surface of the rail support.

[0039] Step S104: Tighten the fastening screws 6 of the main scale vernier 3. The reading of the main scale scale corresponding to the main scale vernier lower claw 301 of the main scale vernier 3 is the height of the outer facade of the rail support.

[0040] (combination) Figure 3 Step S2, measuring the width of the rail brace, includes the following specific steps:

[0041] S201. Following the aforementioned step S104, move the main ruler 1 or the main ruler frame 5 up and down until the horizontal bottom side of the rail support is in contact with the horizontal positioning surface of the F-shaped right claw 201 of the auxiliary ruler 2.

[0042] S202. Tighten the fastening screws 6 of the main scale frame 5 to lock the position of the main scale frame 5 relative to the main scale 1.

[0043] S203. Move the auxiliary ruler 2 or auxiliary ruler frame 4 left and right until the vertical bottom side of the rail support is in contact with the vertical positioning surface of the F-shaped right claw 201 of the auxiliary ruler 2.

[0044] S204. Tighten the fastening screws 6 of the auxiliary ruler frame 4 to lock the position of the auxiliary ruler frame 4 relative to the auxiliary ruler 2; the auxiliary ruler scale readings corresponding to the auxiliary ruler frame 4 and the main ruler frame 5, which are used as auxiliary ruler verniers, are the width of the outer facade of the rail support. Specifically: the auxiliary ruler scale reading corresponding to the right edge of the auxiliary ruler frame 4 is the width of the outer facade of the rail support.

[0045] The inner surfaces of the main scale vernier lower jaw 301 and the L-shaped upper jaw 101 of this utility model are closely fitted with the inclined and vertical surfaces of the rail support, reducing gaps and errors during the measurement process and further improving the accuracy of the measurement.

[0046] In the above embodiment, before steps S1 and S2, a pre-measurement preparation and adjustment step is also included: loosening all fastening screws 6, moving the main scale vernier 3 and the main scale frame 5 relative to the main scale 1 towards the lower part of the main scale 1, and at the same time moving the secondary scale frame 4 towards the left side of the secondary scale 2, so as to leave enough space to place the rail support to be measured and adjust the vernier caliper.

[0047] As described above, this invention allows for direct reading of the vernier caliper's scale value after the vernier caliper position is locked by tightening the fastening screw 6, eliminating the need for complex calculations or conversions. This intuitive reading method simplifies and speeds up the measurement process. The measurement method consists of two steps: height measurement and width measurement. Each step has clear operating instructions and positioning methods, making the measurement process clear, organized, and easy to operate. By adjusting the positions of the main scale 1, secondary scale 2, and vernier caliper, it can adapt to the measurement needs of rail supports of different sizes and shapes. This flexibility makes the vernier caliper more convenient and efficient in practical applications. Due to its high precision and simple operation, the vernier caliper can quickly complete the measurement of the rail support's exterior, helping to shorten railway maintenance and repair time and improve work efficiency. The precise measurement and intuitive reading method of the vernier caliper reduces errors and uncertainties caused by manual measurement. This helps improve the reliability and accuracy of measurement results, ensuring the safe operation of railways.

[0048] The working principle of this utility model is as follows: The L-shaped upper claw 101 of the main scale 1 is placed on the inclined surface of the rail support, and the main scale 1 is attached to the vertical surface outside the rail support. At the same time, the main scale vernier 3 is moved so that the lower claw 301 of the main scale vernier 3 is attached to the lower inclined surface of the rail support, and the height of the outer surface of the rail support can be measured. On this basis, the main scale 1 is moved up and down, and the auxiliary scale frame 4 is moved left and right. The F-shaped right claw 201 of the auxiliary scale 2 is attached to the bottom side of the rail support, and the width of the rail support can be measured.

[0049] As can be seen from the above description, this utility model has fewer components, a simplified structure, is easy to operate, provides convenient readings, and delivers stable and reliable measurement results, thus solving the technical problem of inconvenient measurement of the vertical height and width of the outer facade of the rail support.

[0050] It should be understood that although this specification describes one embodiment, it does not mean that the embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in this embodiment can also be appropriately arranged and combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A vernier caliper for measuring the exterior facade of a steel rail support, characterized in that: It consists of an L-shaped main scale (1), an F-shaped secondary scale (2), a main scale vernier (3), a secondary scale frame (4), a main scale frame (5), and several fastening screws (6); The main scale (1) is set vertically, and the L-shaped upper claw (101) at the top of the main scale (1) is used to match and position the upper inclined surface of the rail support; the root of the L-shaped upper claw (101) is the zero position (1-1) of the main scale; the vertical body of the main scale (1) is in contact with the outer surface of the rail support; the main scale vernier (3) in the middle of the main scale (1) is adapted to the vertical displacement, and the main scale vernier lower claw (301) equipped with the main scale vernier (3) is in contact with the lower inclined surface of the rail support; the reading of the main scale corresponding to the main scale lower claw (301) is the height of the outer surface of the rail support; The main ruler (1) is vertically pulled and slidable at the bottom to adapt to the vertically set main ruler frame (5). The back of the main ruler frame (5) is vertically fixed to the horizontally set secondary ruler frame (4). The secondary ruler frame (4) slides horizontally to adapt to the horizontally set secondary ruler (2). The vertical cross structure formed by the secondary ruler frame (4) and the main ruler frame (5) is the secondary ruler vernier of the secondary ruler (2). The F-shaped right claw (201) at the right end of the secondary ruler (2) is used to match and position the bottom side of the rail support. The root of the F-shaped right claw (201) is the zero position (2-1) of the secondary ruler scale line. The reading of the secondary ruler scale line corresponding to the secondary ruler frame (4) and the main ruler frame (5) used as the secondary ruler vernier is the width of the outer facade of the rail support. The main scale vernier (3), the secondary scale frame (4), and the main scale frame (5) are each equipped with a fastening screw (6) to lock their respective sliding positions. The L-shaped upper claw (101) is inverted and integrally formed with the main scale (1); the positioning inclined surface formed on the inner side of the L-shaped upper claw (101) is suitable for positioning the upper inclined surface of the rail support. The F-shaped right claw (201) is inverted and integrally formed with the auxiliary ruler (2); the right-angle positioning surface of the F-shaped right claw (201) is positioned to fit the bottom side of the rail support. The reading of the main scale line corresponding to the root of the main scale vernier claw (301) is the height of the outer facade of the rail support; The reading of the scale line corresponding to the right edge of the scale frame (4) is the width of the outer facade of the rail support; The vernier frame of the main scale vernier (3) has a clearance notch for easy reading.

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