A parking precision measuring tool suitable for urban rail transit train platform
By designing measuring tools with fixed rulers, sliding rulers, and connecting rulers suitable for urban rail transit train platforms, the problems of low efficiency and poor accuracy of manual measurement in existing technologies have been solved, and fast and accurate parking precision measurement has been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 宁递杰
- Filing Date
- 2025-07-02
- Publication Date
- 2026-07-21
AI Technical Summary
In existing technologies, methods for measuring the accuracy of train platform parking suffer from problems such as large human error, low efficiency, and the need for multiple people to collaborate, resulting in inaccurate measurement results and being time-consuming and labor-intensive.
A measuring tool comprising a fixed ruler, a sliding ruler, and a connecting ruler was designed. It can be flexibly adjusted and fixed through pulleys and a locking mechanism, enabling it to quickly and accurately measure the stopping accuracy of trains at stations.
It improves measurement efficiency, reduces labor costs, lowers measurement inaccuracies, and ensures the accuracy and stability of measurement results.
Smart Images
Figure CN224534928U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of measuring equipment technology. More specifically, this utility model relates to a parking accuracy measuring tool suitable for urban rail transit train platforms. Background Technology
[0002] In urban rail transit systems, accurate measurement of train platform stopping precision is crucial. It not only affects the safety and convenience of passengers boarding and alighting, but also has a significant impact on train operating efficiency and the overall stability of the system.
[0003] In the early days, methods for measuring train platform parking accuracy were relatively primitive and simple. Some methods involved manual visual measurement, where surveyors judged parking accuracy by observing the relative position of the train and the platform. This method has significant limitations. Due to human visual errors and subjective judgment, the accuracy of the measurement results is difficult to guarantee. Moreover, manual measurement is inefficient. Measuring with a tape measure usually requires multiple people to work together, comparing the corresponding positions of the platform door and the train door to obtain accurate data. Measuring with a tape measure is usually time-consuming and labor-intensive, requiring multiple people to assist, and the measurement method requires high precision to obtain relatively accurate data. It also suffers from inaccuracies due to human operation, consuming a lot of manpower and time. Therefore, developing an accurate, convenient, and versatile tool for measuring the parking accuracy of urban rail transit train platforms is of significant practical importance. Summary of the Invention
[0004] This utility model provides a parking accuracy measuring tool suitable for urban rail transit train platforms. It can be used directly; by aligning it with the clear opening width of the train door and comparing it with the platform door opening, the parking accuracy can be read. This reduces the requirements for personnel operations, lowers labor costs, and reduces the risk of repeated measurements due to inaccurate measurements compared to traditional tape measure measurements, greatly improving the efficiency of personnel operations.
[0005] To achieve these objectives and other advantages according to this utility model, a parking accuracy measuring tool suitable for urban rail transit train platforms is provided, comprising:
[0006] Fixed ruler;
[0007] A sliding ruler is provided parallel to the fixed ruler. The top of the sliding ruler is provided with a first groove, and the interior of the first groove is provided with longitudinal graduations.
[0008] A pair of connecting rulers are arranged perpendicularly to both the fixed ruler and the sliding ruler. One end of the connecting ruler is fixedly connected to the fixed ruler, and the other end is slidably connected to the first groove of the sliding ruler via a first pulley.
[0009] Preferably, the first slide groove has opposing guide grooves on the opposite side, and the first pulley includes a slide rod and a rotating wheel. The slide rod slides in the first slide groove, and the rotating wheel slides in a pair of guide grooves.
[0010] Preferably, the connecting ruler is fixedly connected to the first pulley via a connecting mechanism, the connecting mechanism comprising:
[0011] The base plate has the first pulley fixedly connected to its bottom;
[0012] A pair of second grooves are symmetrically formed on both sides of the connecting ruler;
[0013] At least one pair of second pulleys are symmetrically arranged on both sides of the connecting ruler. The axle of the second pulley is vertically arranged and connected to the base plate through a bearing. The second pulley on the same side is slidably connected to the second slide groove.
[0014] Preferably, at least one pair of second pulleys consists of two pairs of second pulleys.
[0015] Preferably, one of the connecting rulers has a horizontal scale at the top.
[0016] Preferably, the connecting mechanism is fixedly connected to the sliding ruler via a locking mechanism, the locking mechanism comprising:
[0017] A locking plate extends to one side of the base plate, and the locking plate has a screw hole in the horizontal direction, with an opening at the end of the screw hole;
[0018] A locking rod is threadedly connected to the screw hole. The rod portion of the locking rod, which passes through the opening, is provided with a locking block. The locking block is hemispherical, and its radius is set to be greater than the distance between the locking rod and the first sliding groove.
[0019] This utility model has at least the following beneficial effects:
[0020] First, this utility model has a simple structure, consisting of a fixed ruler, a sliding ruler, and a connecting ruler, making it easy to carry and operate. The sliding ruler is set parallel to the fixed ruler and slides in the first groove via a first pulley on the connecting ruler, allowing for flexible adjustment of the measurement position. This enables quick and accurate measurement of train platform stopping accuracy, improving measurement efficiency.
[0021] Secondly, the connecting mechanism of this utility model connects the connecting ruler and the first pulley through the base plate, the second sliding groove, and the second pulley. The first pulley slides in the first sliding groove of the sliding ruler to achieve relative sliding between the fixed ruler and the sliding ruler in the longitudinal direction. The second pulley slides in the second sliding groove of the connecting ruler to achieve relative sliding between the fixed ruler and the sliding ruler in the transverse direction. This allows the measuring tool to be flexibly adjusted according to the actual stopping position of the train and the specific conditions of the platform, ensuring the overall reliability of the measuring tool.
[0022] Third, the locking mechanism of this utility model achieves relative fixation between the connecting mechanism and the sliding ruler through a locking plate, screw hole, locking rod, and locking block. When it is not necessary for the fixed ruler and the sliding ruler to slide relative to each other in the longitudinal direction, rotating the locking rod makes the hemispherical locking block fit tightly with the first sliding groove, preventing the connecting mechanism from sliding during the measurement process and ensuring the accuracy and stability of the measurement results.
[0023] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description
[0024] Figure 1 This is a top view schematic diagram of one technical solution of this utility model;
[0025] Figure 2 This is a structural schematic diagram of one technical solution of this utility model. Detailed Implementation
[0026] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.
[0027] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.
[0028] It should be noted that, unless otherwise specified, the experimental methods described in the following embodiments are conventional methods, and the reagents and materials described are commercially available. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to fixed connection or setting, detachable connection or setting, or integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0029] like Figure 1-2 As shown, this utility model provides a parking accuracy measurement tool suitable for urban rail transit train platforms, comprising:
[0030] The fixed ruler (1) has a structure similar to a T-slot on its top. The connecting ruler (5) is fixed to the T-slot by bolts. When in use, the midpoint of the fixed ruler (1) is aligned with the center point of the platform door opening.
[0031] A sliding ruler (2) is set parallel to the fixed ruler (1). The top of the sliding ruler (2) is provided with a first groove (3) to provide a track for the sliding of the first pulley. The first groove (3) is provided with a longitudinal scale (4). The longitudinal direction is the direction of train operation, and the transverse direction is perpendicular to the direction of train operation. When in use, the midpoint of the sliding ruler (2) is aligned with the center point of the train door opening. The reading of the longitudinal scale (4) corresponding to the midpoint of the sliding ruler (2) is 0. The readings on both sides of the longitudinal direction increase. Under normal circumstances, the distance between the fixed ruler (1) and the sliding ruler (2) is the distance between the platform door and the train door.
[0032] A pair of connecting rulers (5) are set perpendicularly to the fixed ruler (1) and the sliding ruler (2). One end of the connecting ruler (5) is fixedly connected to the fixed ruler (1), and the other end is slidably connected to the first groove (3) of the sliding ruler (2) through the first pulley. When it is necessary to measure the stopping accuracy of the train, the sliding ruler (2) is pushed according to the position of the train door, so that the first pulley slides in the first groove (3), thereby adjusting the position of the sliding ruler (2). The sliding ruler (2) is aligned with the net opening width of the door. By comparing the opening of the platform door, the longitudinal distance data can be read through the longitudinal scale (4) to read the stopping accuracy.
[0033] In the above technical solution, the present invention has a simple structure, consisting of a fixed ruler (1), a sliding ruler (2), and a connecting ruler (5), which is easy to carry and operate. The sliding ruler (2) is set parallel to the fixed ruler (1), and slides in the first slide groove (3) through the first pulley on the connecting ruler (5), which can flexibly adjust the measurement position and quickly and accurately measure the stopping accuracy of trains at the station, thus improving the measurement efficiency.
[0034] In another technical solution, the first slide groove (3) has opposing guide grooves on its opposite side to guide the sliding of the first pulley. The first pulley includes a sliding rod and a rotating wheel. The sliding rod slides in the first slide groove (3), and the rotating wheel slides in a pair of guide grooves. The guide grooves on the opposite side of the first slide groove (3) allow the sliding rod to slide within the first slide groove (3) while the rotating wheel slides within the guide grooves, thus cooperating to make the sliding of the first pulley more stable. This structure reduces deviations during the sliding process, thereby improving the accuracy of the measurement results.
[0035] In another technical solution, the connecting ruler (5) is fixedly connected to the first pulley via a connecting mechanism, the connecting mechanism comprising:
[0036] The base plate (6) provides support and mounting position for other components. The bottom of the base plate is fixedly connected to the first pulley, so that the first pulley can drive the base plate (6) to make the fixed ruler (1) slide longitudinally relative to the sliding ruler (2).
[0037] A pair of second sliding grooves (7) are symmetrically opened on both sides of the connecting ruler (5) to provide a track for the sliding of the second pulley (8), guide the second pulley (8) to move laterally, and make the fixed ruler (1) slide laterally relative to the sliding ruler (2);
[0038] At least one pair of second pulleys (8) are symmetrically arranged on both sides of the connecting ruler (5). The axle of the second pulley (8) is vertically arranged and connected to the base plate (6) through a bearing. The second pulley (8) on the same side is slidably connected to the second slide groove (7). During installation, attention should be paid to the position and angle of the second pulley (8) to ensure that the second pulley (8) on the same side can be accurately embedded in the corresponding second slide groove (7).
[0039] In actual measurement operations, since the design distance between the platform door and the train door is different at each station, when it is necessary to measure the stopping accuracy of the train platform, first determine the position of the fixed ruler (1), that is, align the midpoint of the fixed ruler (1) with the center point of the platform door opening, and then, according to the distance between the platform door and the train door, make the second pulley (8) slide in the second groove (7) of the connecting ruler (5) to realize the relative sliding of the fixed ruler (1) and the sliding ruler (2) in the horizontal direction to match the distance between the platform door and the train door. Finally, according to the position of the train door, push the sliding ruler (2) longitudinally so that the first pulley slides in the first groove (3) and the sliding ruler (2) is aligned with the net opening width of the door. By comparing the opening of the platform door, the longitudinal distance data can be read through the longitudinal scale (4) to read the stopping accuracy.
[0040] In the above technical solution, the connecting mechanism connects the connecting ruler (5) and the first pulley through the base plate (6), the second slide groove (7), and the second pulley (8). The first pulley slides in the first slide groove (3) of the sliding ruler (2) to achieve relative sliding between the fixed ruler (1) and the sliding ruler (2) in the longitudinal direction. The second pulley (8) slides in the second slide groove (7) of the connecting ruler (5) to achieve relative sliding between the fixed ruler (1) and the sliding ruler (2) in the transverse direction. This allows the measuring tool to be flexibly adjusted according to the actual stopping position of the train and the specific conditions of the platform, ensuring the overall reliability of the measuring tool.
[0041] In another technical solution, at least one pair of second pulleys (8) is actually two pairs of second pulleys (8). Using two pairs of second pulleys (8), that is, two second pulleys (8) are set on each side of the connecting ruler (5), increases the stability of the connecting mechanism and the smoothness of sliding. The symmetrical arrangement of the two pairs of pulleys makes the force on the connecting ruler (5) more uniform during the sliding process, further improving the accuracy and reliability of the measuring tool.
[0042] In another technical solution, one of the connecting rulers (5) has a horizontal scale (9) on its top. The telescopic length of the adjustable fixed ruler (1) is adapted to match the distance between the platform door and the train door. By reading the horizontal scale (9), the distance information between the platform door and the train door can be obtained more comprehensively and accurately, thus meeting the needs of actual measurement.
[0043] In another technical solution, the connecting mechanism is fixedly connected to the sliding ruler (2) via a locking mechanism, the locking mechanism comprising:
[0044] The locking plate (10) extends to one side of the base plate (6), and can be on the inner side or the outer side. The locking plate (10) has a screw hole in the horizontal direction. The screw hole is arranged horizontally and is used to connect with the locking rod (11) by thread. The end of the screw hole has an opening to avoid the movement of the rod part of the locking rod (11).
[0045] A locking rod (11) is threadedly connected to the screw hole. The locking rod (11) has a locking block at the rod part of the opening. The locking block is hemispherical and its radius is set to be greater than the distance between the locking rod (11) and the first slide groove (3). This is used to ensure that the locking block and the first slide groove (3) fit tightly together when the locking rod (11) is rotated to achieve locking. When it is necessary to read the reading on the sliding ruler (2), it is necessary to fix the fixed ruler (1) and the sliding ruler (2) to avoid relative displacement in the longitudinal direction. At this time, the locking rod (11) is rotated so that the locking block rotates in the longitudinal plane and moves closer to the first slide groove (3) until it fits tightly together with the first slide groove (3) to achieve locking.
[0046] In the above technical solution, the locking mechanism achieves relative fixation between the connecting mechanism and the sliding ruler (2) through the locking plate (10), screw hole, locking rod (11) and locking block. When it is not necessary for the ruler (1) and the sliding ruler (2) to slide relative to each other in the longitudinal direction, the locking rod (11) is rotated to make the hemispherical locking block fit tightly with the first sliding groove (3), preventing the connecting mechanism from sliding during the measurement process and ensuring the accuracy and stability of the measurement results.
[0047] The number of devices and processing scale described herein are for the purpose of simplifying the description of this utility model. Applications, modifications, and variations of this utility model will be readily apparent to those skilled in the art.
[0048] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.
Claims
1. A tool for measuring the parking accuracy of trains at urban rail transit platforms, characterized in that, include: Fixed ruler; A sliding ruler is provided parallel to the fixed ruler. The top of the sliding ruler is provided with a first groove, and the interior of the first groove is provided with longitudinal graduations. A pair of connecting rulers are arranged perpendicularly to both the fixed ruler and the sliding ruler. One end of the connecting ruler is fixedly connected to the fixed ruler, and the other end is slidably connected to the first groove of the sliding ruler via a first pulley.
2. The parking accuracy measuring tool for urban rail transit train platforms as described in claim 1, characterized in that, The first slide groove has opposing guide grooves on its opposite side. The first pulley includes a slide rod and a rotating wheel. The slide rod slides in the first slide groove, and the rotating wheel slides in a pair of guide grooves.
3. The parking accuracy measuring tool for urban rail transit train platforms as described in claim 1, characterized in that, The connecting ruler is fixedly connected to the first pulley via a connecting mechanism, the connecting mechanism comprising: The base plate has the first pulley fixedly connected to its bottom; A pair of second grooves are symmetrically formed on both sides of the connecting ruler; At least one pair of second pulleys are symmetrically arranged on both sides of the connecting ruler. The axle of the second pulley is vertically arranged and connected to the base plate through a bearing. The second pulley on the same side is slidably connected to the second slide groove.
4. The parking accuracy measuring tool for urban rail transit train platforms as described in claim 3, characterized in that, At least one pair of second pulleys consists of two pairs of second pulleys.
5. The parking accuracy measuring tool for urban rail transit train platforms as described in claim 3, characterized in that, One of the connecting rulers has horizontal markings on its top.
6. The parking accuracy measuring tool for urban rail transit train platforms as described in claim 3, characterized in that, The connecting mechanism is fixedly connected to the sliding ruler via a locking mechanism, the locking mechanism comprising: A locking plate extends to one side of the base plate, and the locking plate has a screw hole in the horizontal direction, with an opening at the end of the screw hole; A locking rod is threadedly connected to the screw hole. The rod portion of the locking rod, which passes through the opening, is provided with a locking block. The locking block is hemispherical, and its radius is set to be greater than the distance between the locking rod and the first sliding groove.