A measuring tool for the amount of switch locking
Patent Information
- Application Number
- CN202521998700.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-17
- Publication Date
- 2026-10-23
- Estimated Expiration
- 2035-09-17
AI Technical Summary
[0007]本实用新型的目的在于提供一种用于道岔锁闭量的测量工具，该测量工具中的主尺与副尺均采用“水平尺身+竖直尺身”的L型结构设计，工具整体可设计得更为纤细（如水平尺身宽度、竖直尺身厚度适配狭小空间），能够轻松深入道岔锁闭装置的窄小间隙，有效解决了传统片状测量工具因宽度过大无法进入狭小空间的问题
[0025]在使用本实用新型用于道岔锁闭量的测量工具进行测量时，操作流程如下：首先，将主尺的第一竖直尺身内侧紧密贴合道岔锁闭装置的固定基准面（例如锁闭框内壁），以此建立测量的固定参照；接着，借助主尺与副尺间的“滑槽-滑轨”配合结构，沿主尺第一水平尺身的长度方向平稳推动副尺，直至副尺的第二竖直尺身内侧与锁闭装置的活动基准面（例如锁闭杆凸台侧面）紧密贴合，此时主尺第一竖直尺身与副尺第二竖直尺身之间的间距，即为道岔锁闭量的实际数值。待副尺移动至上述目标位置后，通过设置在主尺第一水平尺身上的锁紧结构，对主尺与副尺的相对位置进行锁定——锁紧结构会施加稳定压力，限制副尺的滑移，从而将已测量的间距值固定。随后，可将测量工具从道岔的狭小空间中取出，读取固定后的间距数值，即可获得道岔锁闭量的精确结果。
Smart Images
Figure CN224887804U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of railway turnout technology, and in particular relates to a measuring tool for turnout locking amount. Background Technology
[0002] As a core switching component of the railway track system, the railway turnout plays a crucial role in enabling locomotives and rolling stock to switch from one track to another. Its operational stability directly determines the safety and efficiency of railway transportation. The core components of a turnout include the switch section (including the switch rail and the stock rail), the connecting section (including the guide curve rail), and the frog section (including the frog point and the guard rail). Among these, the turnout locking amount is a core technical parameter that ensures the safe operation of the switch section. It is defined as the effective locking dimension of the locking device (such as the locking rod, locking frame, and locking iron) on the movable switch rail after the turnout has completed the switching process. Specifically, it is the vertical distance between the inner wall of the locking frame (fixed reference surface) and the side of the locking rod boss (movable reference surface).
[0003] From the perspective of railway safety operation and maintenance requirements, the precision control of turnout locking is crucial. If the locking amount is too small (below the design threshold), the lateral impact force generated when a train passes can easily cause the switch rail to separate from the stock rail, leading to a derailment risk. If the locking amount is too large (above the design threshold), it can cause the switch rail to jam during turnout switching, leading to signal system malfunctions and affecting train dispatching efficiency. Industry standards clearly require that the measurement accuracy of turnout locking amount must be ≤0.1mm, and measurements must be frequently conducted during routine turnout maintenance, new line laying, and fault diagnosis.
[0004] However, the measurement of turnout locking is subject to natural spatial constraints and environmental complexity, posing significant challenges to accurate measurement. For example, the turnout locking device is usually located in a narrow area between the switch rail and the stock rail, surrounded by protruding components such as bolts, springs, and slide plates, forming a special environment of "narrow gaps, deep cavities, and multiple obstructions." At the same time, there are interference factors such as dust and oil on the railway site, which further increases the difficulty of measurement operations.
[0005] In existing practices for measuring turnout locking distance, although there have been attempts to use sheet-type vernier calipers, while they offer high precision (0.02mm), their core drawback lies in their excessively large cross-sectional size, making them unable to directly insert into narrow locking device gaps. Sheet-type vernier calipers lack dedicated locking devices, requiring operators to continuously hold and maintain the relative positions of the main and auxiliary scales during measurement to ensure the measurement interval matches the locking distance. However, the confined space at turnout measurement sites makes it difficult to remove the calipers from narrow gaps without hand wobbling, easily leading to relative slippage of the main and auxiliary scales and affecting measurement accuracy.
[0006] Based on this, the present invention provides a novel tool for measuring the locking amount of turnouts, in order to overcome the above-mentioned defects. Utility Model Content
[0007] The purpose of this utility model is to provide a measuring tool for turnout locking. The main scale and the auxiliary scale of the measuring tool adopt an L-shaped structure design of "horizontal scale body + vertical scale body". The tool as a whole can be designed to be more slender (such as the width of the horizontal scale body and the thickness of the vertical scale body to adapt to narrow spaces), which can easily penetrate into the narrow gap of the turnout locking device, effectively solving the problem that traditional sheet-shaped measuring tools cannot enter narrow spaces due to their excessive width.
[0008] This utility model adopts the following technical solution: a measuring tool for turnout locking amount, comprising:
[0009] The main ruler includes a first horizontal ruler body and a first vertical ruler body that is vertically disposed at one end of the first horizontal ruler body;
[0010] The auxiliary ruler includes a second horizontal ruler body and a second vertical ruler body vertically disposed at one end of the second horizontal ruler body. A groove is provided in one of the first horizontal ruler body of the main ruler and the second horizontal ruler body of the auxiliary ruler, and a slide rail is provided in the other to cooperate with the groove, so that the auxiliary ruler can slide along the length direction of the first horizontal ruler body of the main ruler.
[0011] A locking structure is provided on the first horizontal ruler of the main ruler, which is used to lock the relative position of the main ruler and the secondary ruler after the secondary ruler moves to the target position.
[0012] Furthermore, the locking structure includes a locking base and a locking element;
[0013] The locking base is fixedly connected to the first horizontal body of the main scale, and the locking base is provided with a guide channel for the second horizontal body of the auxiliary scale to pass through, the extension direction of the guide channel being consistent with the sliding direction of the auxiliary scale;
[0014] The locking base is also provided with a limiting hole that penetrates its side wall and communicates with the guide channel. The locking member is movably assembled in the limiting hole, and the locking member can achieve relative fixation of the main scale and the auxiliary scale by pressing against the second horizontal scale body of the auxiliary scale.
[0015] Furthermore, the axial direction of the limiting hole is perpendicular to the sliding direction of the auxiliary ruler.
[0016] Furthermore, the inner wall of the limiting hole is provided with internal threads, and the locking member is a threaded member with external threads on the outer wall. The threaded member is threadedly engaged with the limiting hole, and one end of the threaded member can extend into the guide channel and abut against the second horizontal body of the auxiliary ruler.
[0017] Furthermore, the locking element is a bolt or screw.
[0018] Furthermore, the front of the first horizontal ruler body of the main ruler is provided with a main scale.
[0019] The second horizontal scale of the auxiliary scale is provided with vernier scale graduations that correspond to the main scale graduations.
[0020] Furthermore, the bottom surface or side wall of the first horizontal scale body of the main scale is also provided with auxiliary main scales that are completely aligned with the main scales on the front.
[0021] Furthermore, both the first and second horizontal rulers are rod-shaped.
[0022] Furthermore, both the first vertical ruler body and the first vertical ruler body are rod-shaped.
[0023] Furthermore, the free ends of the first horizontal ruler body, the first vertical ruler body, the second horizontal ruler body, and the second vertical ruler body are all chamfered.
[0024] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0025] When using the measuring tool for turnout locking amount of this utility model, the operation procedure is as follows: First, the inner side of the first vertical body of the main scale is tightly fitted against the fixed reference surface of the turnout locking device (e.g., the inner wall of the locking frame) to establish a fixed reference for measurement. Next, using the "slide groove-slide rail" cooperation structure between the main scale and the auxiliary scale, the auxiliary scale is smoothly pushed along the length direction of the first horizontal body of the main scale until the inner side of the second vertical body of the auxiliary scale is tightly fitted against the movable reference surface of the locking device (e.g., the side of the locking rod boss). At this time, the distance between the first vertical body of the main scale and the second vertical body of the auxiliary scale is the actual value of the turnout locking amount. After the auxiliary scale moves to the above target position, the relative position of the main scale and the auxiliary scale is locked by the locking structure set on the first horizontal body of the main scale—the locking structure will apply stable pressure to restrict the sliding of the auxiliary scale, thereby fixing the measured distance value. Subsequently, the measuring tool can be removed from the narrow space of the turnout, and the fixed distance value can be read to obtain the accurate result of the turnout locking amount.
[0026] The measuring tool for turnout locking in this invention adopts an L-shaped structure design of "horizontal scale body + vertical scale body" for both the main scale and the auxiliary scale. The tool as a whole can be designed to be more slender (such as the width of the horizontal scale body and the thickness of the vertical scale body to adapt to narrow spaces), which can easily penetrate into the narrow gap of the turnout locking device, effectively solving the problem that traditional sheet-shaped measuring tools cannot enter narrow spaces due to their excessive width.
[0027] Meanwhile, the right-angle characteristics of the two L-shaped structures ensure that the measurement reference is consistent with the actual force direction (perpendicular to the locking surface) of the turnout locking amount, avoiding measurement errors caused by the deviation of the fitting angle and improving the accuracy of the reference positioning.
[0028] Furthermore, the locking mechanism reliably locks the relative positions of the main and vernier scales after the measurement location is determined. This not only eliminates the inconvenience of traditional tools requiring in-situ readings (which are easily obstructed by space), but also avoids inaccurate readings caused by positional shifts during tool removal. The locking mechanism maintains a stable distance, making reading operations more convenient and further reducing errors caused by human intervention, thus ensuring the reliability of the measurement results. Attached Figure Description
[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0030] Figure 1 This is a schematic diagram of the structure of the measuring tool for turnout locking amount in a specific embodiment of this utility model;
[0031] Figure 2 for Figure 1 Schematic diagram of the structure of the central main scale and locking base;
[0032] Figure 3 for Figure 1 Schematic diagram of the structure of the middle scale;
[0033] Among them: main scale 1, first horizontal scale body 10, first vertical scale body 11, slide rail 12; secondary scale 2, second horizontal scale body 20, second vertical scale body 21, slide groove 22; locking structure 3, locking base 30, locking part 31, guide channel 32, limiting hole 33. Detailed Implementation
[0034] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. 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.
[0035] The following is in conjunction with the appendix Figures 1 to 3 The present invention will be described in detail with reference to specific embodiments:
[0036] like Figures 1 to 3 As shown, this utility model provides a measuring tool for turnout locking amount, which includes:
[0037] The main ruler 1 includes a first horizontal ruler body 10 and a first vertical ruler body 11 vertically disposed at one end of the first horizontal ruler body 10, and the first horizontal ruler body 10 and the first vertical ruler body 11 form an "L-shaped" structure.
[0038] The auxiliary ruler 2 includes a second horizontal ruler body 20 and a second vertical ruler body 21 perpendicularly disposed at one end of the second horizontal ruler body 20. The second horizontal ruler body 20 and the second vertical ruler body 21 also form an "L-shaped" structure. A groove 22 is provided in one of the first horizontal ruler body 10 of the main ruler 1 and the second horizontal ruler body 20 of the auxiliary ruler 2, and a slide rail 12 that cooperates with the groove 22 is provided in the other, so that the auxiliary ruler 2 can slide along the length direction of the first horizontal ruler body 10 of the main ruler 1.
[0039] Locking structure 3 is disposed on the first horizontal scale body 10 of the main scale 1, and is used to lock the relative position of the main scale 1 and the secondary scale 2 after the secondary scale 2 moves to the target position.
[0040] When using the measuring tool for turnout locking amount of this utility model, the operation procedure is as follows: First, the inner side of the first vertical body 11 of the main scale 1 is tightly attached to the fixed reference surface of the turnout locking device (e.g., the inner wall of the locking frame) to establish a fixed reference for measurement; then, with the help of the "slide groove-slide rail" cooperation structure between the main scale 1 and the auxiliary scale 2, the auxiliary scale 2 is smoothly pushed along the length direction of the first horizontal body 10 of the main scale 1 until the inner side of the second vertical body 21 of the auxiliary scale 2 is tightly attached to the movable reference surface of the locking device (e.g., the side of the locking rod boss). At this time, the distance between the first vertical body 11 of the main scale and the second vertical body 21 of the auxiliary scale is the actual value of the turnout locking amount. After the auxiliary scale 2 moves to the above target position, the relative position of the main scale 1 and the auxiliary scale 2 is locked by the locking structure 3 set on the first horizontal body 10 of the main scale 1—the locking structure 3 will apply stable pressure to restrict the sliding of the auxiliary scale 2, thereby fixing the measured distance value. Then, the measuring tool can be removed from the narrow space of the turnout, and the fixed spacing value can be read to obtain the accurate result of the turnout locking amount.
[0041] In this utility model, the measuring tool for turnout locking quantity adopts an L-shaped structure design of "horizontal ruler body + vertical ruler body" for both the main ruler 1 and the auxiliary ruler 2. The tool as a whole can be designed to be more slender (such as the width of the horizontal ruler body and the thickness of the vertical ruler body to adapt to narrow spaces), which can easily penetrate into the narrow gap of the turnout locking device, effectively solving the problem that traditional sheet-shaped measuring tools cannot enter narrow spaces due to their excessive width.
[0042] Meanwhile, the right-angle characteristics of the two L-shaped structures ensure that the measurement reference is consistent with the actual force direction (perpendicular to the locking surface) of the turnout locking amount, avoiding measurement errors caused by the deviation of the fitting angle and improving the accuracy of the reference positioning.
[0043] Furthermore, the locking structure 3 reliably locks the relative positions of the main and auxiliary scales after the measurement position is determined. This not only eliminates the inconvenience of traditional tools requiring in-situ readings (which are easily affected by spatial obstructions), but also avoids inaccurate readings caused by positional shifts during tool removal. The spacing remains stable after locking, making reading operations more convenient and further reducing errors caused by human operation, thus ensuring the reliability of the measurement results. This utility model, used for measuring turnout locking, has a simple structure, is easy to operate, and improves measurement efficiency.
[0044] Furthermore, in some specific embodiments, the locking structure 3 includes a locking base 30 and a locking member 31.
[0045] The locking base 30 is fixedly connected to the first horizontal body 10 of the main scale 1. The fixing method between the locking base 30 and the first horizontal body 10 of the main scale 1 can be varied, such as integral molding, welding, or bolt fastening, to ensure the base position is stable and without deviation. This invention does not impose a specific limitation. The locking base 30 is provided with a guide channel 32 for the second horizontal body 20 of the auxiliary scale 2 to pass through. The extending direction of the guide channel 32 is consistent with the sliding direction of the auxiliary scale 2.
[0046] The locking base 30 is also provided with a limiting hole 33 that penetrates its side wall and communicates with the guide channel 32. The locking member 31 is movably assembled in the limiting hole 33, and the locking member 31 can achieve relative fixation between the main ruler 1 and the auxiliary ruler 2 by abutting against the second horizontal ruler body 20 of the auxiliary ruler 2. In this embodiment, the axial direction of the limiting hole 33 is perpendicular to the sliding direction of the auxiliary ruler 2.
[0047] Before measurement, when adjusting the position of the auxiliary ruler 2, the locking member 31 is in the "unlocked state," meaning that the locking member 31 releases its clamping force on the auxiliary ruler 2. During measurement, after the auxiliary ruler 2 moves to the target measurement position, it switches to the "locked state." At this time, the locking member 31 is pushed into the guide channel 32 along the axial direction of the limiting hole 33 until its end tightly abuts against the surface of the second horizontal ruler body 20 of the auxiliary ruler 2. As the clamping force increases, the locking member 31 applies a stable positive pressure to the surface of the auxiliary ruler 2. The static friction generated by the positive pressure counteracts any possible slippage tendency of the auxiliary ruler 2 (such as slight vibration when removing the tool).
[0048] More specifically, in this embodiment, the inner wall of the limiting hole 33 may also be provided with internal threads, and the locking member 31 is a threaded member with external threads on its outer wall. The threaded member is threadedly engaged with the limiting hole 33, and one end of the threaded member can extend into the guide channel 32 and abut against the second horizontal scale body 20 of the auxiliary scale 2. During measurement, the threaded member only needs to be tightened to "feel slight resistance" to generate sufficient static friction to lock the auxiliary scale 2, avoiding the problems of "locking failure due to excessive looseness" or "damage to the auxiliary scale surface" caused by uncontrollable force in traditional "plug-in locking". If the surface of the auxiliary scale 2 is damaged, it may affect the subsequent sliding accuracy. In this embodiment, the locking member 31 is a bolt or screw, using standardized parts to reduce production and maintenance costs and improve versatility.
[0049] Furthermore, in some specific embodiments, the main scale 1, first horizontal scale body 10, has a main scale on its front side, and the secondary scale 2, second horizontal scale body 20, has a vernier scale that cooperates with the main scale. The main scale and the vernier scale together constitute a vernier caliper structure. It should be noted that the design principle of the vernier caliper structure composed of the main scale and the vernier scale can be referred to as a vernier caliper.
[0050] Specifically, the first horizontal scale body 10 of the main scale 1 has a main scale on its front side, and its smallest division value (e.g., 1 mm) serves as the "integer / large unit reference" for measurement, used to read the integer part or larger numerical range of the locked quantity. The second horizontal scale body 20 of the vernier scale 2 has a vernier scale, and its design logic can be as follows: the total length of the vernier scale is equal to the "n-1 smallest division values" of the main scale (for example, if the smallest division of the main scale is 1 mm, and the vernier has 10 divisions, then the total length of the vernier = 9 mm, and the division value of each vernier division = 0.1 mm), forming a complementary relationship of "coarse measurement by the main scale + fine measurement by the vernier".
[0051] When taking the reading, the first step is to read the "main scale integer": find the nearest integer scale value to the left of the "0 mark" on the main scale (for example, if the vernier 0 mark is between 25mm and 26mm on the main scale, then the main scale reading is 25mm).
[0052] The second step is to read the "vernier decimal": Find the scale line on the vernier scale that is completely aligned with a scale line on the main scale. The "number of divisions × vernier scale division value" corresponding to this vernier scale line is the decimal part (for example, if the third division of the vernier is aligned with the main scale and the vernier scale division value is 0.1mm, then the vernier reading is 3 × 0.1 = 0.3mm).
[0053] The third step is to calculate the "total locking amount": add the integer value of the main scale to the decimal value of the vernier scale (25mm + 0.3mm = 25.3mm), which is the actual measured value of the turnout locking amount.
[0054] The measuring tool for turnout locking in this invention uses a vernier caliper structure composed of a main scale 1 and a secondary scale 2. Through the scaled cooperation of the "main scale + vernier", the measurement accuracy can be improved by 0.1mm, 0.05mm or even 0.02mm (adjusted according to the number of vernier scale divisions). This allows for precise capture of minute changes in locking amount, avoiding turnout locking failure and traffic hazards caused by insufficient accuracy.
[0055] Furthermore, in some specific embodiments, the bottom surface or side wall of the first horizontal scale body 10 of the main scale 1 is also provided with an auxiliary main scale that is completely aligned with the main scale on the front. The auxiliary main scale is used for reading when the main scale on the front of the main scale is obscured.
[0056] The measurement environment of turnout locking devices generally has the problem of "multiple components obstructing the view". Although the main scale on the front of the main scale 1 is the conventional reading angle, the first horizontal scale body 10 of the main scale 1 may be obstructed by the edge of the turnout locking frame, the bolt at the bottom of the switch rail, or adjacent rail components during measurement, making it impossible for the operator to observe the scale from the front.
[0057] The auxiliary main scale provides a "multi-view reading alternative." If the auxiliary main scale is located on the bottom, the reading can be taken by looking up from below the tool, utilizing the small space at the bottom of the turnout. If the auxiliary main scale is located on the side wall, the reading can be taken by looking straight ahead from the side of the tool, avoiding obstructions from the front. This allows the measuring tool to be read even when obstructed, without adjusting the tool position or disassembling the turnout components. It completely solves the core problem of traditional single-scale tools that "the tool is visible, but the scale cannot be read," and is suitable for more than 90% of turnout locking measurement space scenarios.
[0058] Furthermore, the measurement area of the turnout locking device exhibits typical characteristics of "narrow gap and deep cavity": for example, the fit gap between the locking frame and the switch rail is only 15mm to 30mm, and the locking measurement requires the ruler to be inserted into a cavity with a depth of 20mm to 50mm, surrounded by protruding components such as bolts and springs. This places extremely high demands on the "slender shape" of the ruler. Therefore, in some specific embodiments, both the first horizontal ruler 10 and the second horizontal ruler 20 are designed as rods. Both the first vertical ruler 11 and the first vertical ruler 21 are also designed as rods.
[0059] The cross-section of the rod can be designed as a small rectangle (e.g., 8mm-10mm wide, 3mm-4mm thick) or a circle (e.g., 4mm-8mm in diameter), which can easily pass through the guide channel 32 of the locking base 30 and smoothly extend into the narrow gap of the turnout, avoiding the non-rod-shaped (e.g., sheet-shaped, block-shaped) ruler from being stuck by the protruding parts due to the cross-section being too wide / thick, thus achieving "unobstructed extension".
[0060] Furthermore, in some specific embodiments, the free ends of the first horizontal ruler body 10, the first vertical ruler body 11, the second horizontal ruler body 20, and the second vertical ruler body 21 are all provided with chamfers to avoid scratching the operator.
[0061] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.
Claims
1. A measuring tool for turnout locking amount, characterized in that: It includes: The main ruler includes a first horizontal ruler body and a first vertical ruler body that is vertically disposed at one end of the first horizontal ruler body; The auxiliary ruler includes a second horizontal ruler body and a second vertical ruler body vertically disposed at one end of the second horizontal ruler body. A groove is provided in one of the first horizontal ruler body of the main ruler and the second horizontal ruler body of the auxiliary ruler, and a slide rail is provided in the other to cooperate with the groove, so that the auxiliary ruler can slide along the length direction of the first horizontal ruler body of the main ruler. A locking structure is provided on the first horizontal ruler of the main ruler, which is used to lock the relative position of the main ruler and the secondary ruler after the secondary ruler moves to the target position.
2. The measuring tool for turnout locking amount according to claim 1, characterized in that: The locking structure includes a locking base and a locking element; The locking base is fixedly connected to the first horizontal body of the main scale, and the locking base is provided with a guide channel for the second horizontal body of the auxiliary scale to pass through, the extension direction of the guide channel being consistent with the sliding direction of the auxiliary scale; The locking base is also provided with a limiting hole that penetrates its side wall and communicates with the guide channel. The locking member is movably assembled in the limiting hole, and the locking member can achieve relative fixation of the main scale and the auxiliary scale by pressing against the second horizontal scale body of the auxiliary scale.
3. The measuring tool for turnout locking amount according to claim 2, characterized in that: The axial direction of the limiting hole is perpendicular to the sliding direction of the auxiliary ruler.
4. The measuring tool for turnout locking amount according to claim 2, characterized in that: The inner wall of the limiting hole is provided with internal threads, and the locking member is a threaded member with external threads on the outer wall. The threaded member is threadedly engaged with the limiting hole, and one end of the threaded member can extend into the guide channel and abut against the second horizontal body of the auxiliary ruler.
5. The measuring tool for turnout locking amount according to claim 4, characterized in that: The locking element is a bolt or screw.
6. The measuring tool for turnout locking amount according to claim 1, characterized in that: The main scale is provided on the front of the first horizontal scale body of the main scale; The second horizontal scale of the auxiliary scale is provided with vernier scale graduations that correspond to the main scale graduations.
7. The measuring tool for turnout locking amount according to claim 6, characterized in that: The bottom or side wall of the first horizontal scale body of the main scale is also provided with auxiliary main scales that are completely aligned with the main scales on the front.
8. The measuring tool for turnout locking amount according to claim 1, characterized in that: Both the first and second horizontal rulers are rod-shaped.
9. The measuring tool for turnout locking amount according to claim 8, characterized in that: Both the first vertical ruler body and the first vertical ruler body are rod-shaped.
10. The measuring tool for turnout locking amount according to claim 1, characterized in that: The free ends of the first horizontal ruler body, the first vertical ruler body, the second horizontal ruler body, and the second vertical ruler body are all chamfered.