Subway measuring scale

Abstract

This utility model relates to the field of railway equipment technology and discloses a subway measuring ruler, including a measuring rod and a mounting head. The mounting head is fixedly connected to the left and right ends of the measuring rod, and a measuring ruler head is fixedly connected to the outer side wall of the mounting head. An adjustment mechanism and an auxiliary mechanism are provided on the measuring rod. The adjustment mechanism includes a connector, which is located on the inner front wall of the measuring rod. A horizontal bubble plate is slidably connected to the inner walls of the left and right sides of the connector, and a vertical bubble plate is slidably connected to the inner walls of the left and right sides of the connector. A serial port is provided on the inner right side of the mounting head. In this utility model, by setting up an adjustment mechanism and utilizing the linkage monitoring of the horizontal and vertical bubble plates, the horizontal state of the measuring rod can be adjusted in real time and intuitively, ensuring that the measuring ruler head maintains horizontal contact with the subway wheel rim, effectively avoiding errors caused by measurement angle deviations.

Description

Technical Field

[0001] This utility model relates to the field of railway equipment technology, and in particular to a subway measuring ruler. Background Technology

[0002] The wheelset inner distance gauge is a specialized measuring instrument for measuring the inner distance of wheelsets in subway vehicles. It checks whether the distance between the left and right wheel handles of each wheelset meets the operating requirements, providing data support for the smooth operation of the vehicle on the track. The structure is specifically designed for measuring the inner distance of wheelsets, with high measurement accuracy. It can accurately measure the size of the inner distance of the wheelset, ensuring that the wheelset size meets the standards and guaranteeing the vehicle's passability.

[0003] Confirm that the inner distance gauge of the wheelset is free from deformation, the scale is clear, and all components are firmly connected (such as the gauge body, positioning claws, locking devices, etc.). Close the gauge body and check whether the vernier scale is aligned with the zero position of the main scale. If there is a deviation, it needs to be calibrated or the error recorded first. Avoid shaking the gauge body during measurement and ensure that the positioning claws are in contact with the highest point of the inner side of the wheel rim (i.e., the working surface of the wheelset in contact with the rail) to prevent errors caused by contact position deviation. The same wheelset needs to be measured 2 to 3 times at different circumferential positions (such as 90° apart) and the average value is taken to reduce the error.

[0004] The subway measuring ruler has the following drawbacks: it requires manual positioning of the claws to fit against the inside of the subway wheel rim and adjustment of the ruler's verticality. However, the verticality of the ruler cannot be controlled quickly and accurately, which requires tightening or loosening the adjustment device multiple times, thus delaying the efficiency of dimensional measurement. Therefore, a subway measuring ruler is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a subway measuring ruler, which aims to improve the problem in the prior art that the verticality of the ruler body cannot be quickly and accurately controlled because the positioning claw needs to be manually positioned to fit the inner side of the wheel rim and the ruler body needs to be adjusted.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a subway measuring ruler, comprising a measuring rod and a mounting head, wherein the mounting head is fixedly connected to the left and right ends of the measuring rod, and a measuring ruler head is fixedly connected to the outer side wall of the mounting head; an adjustment mechanism is provided on the measuring rod, and an auxiliary mechanism is provided on the measuring rod; the adjustment mechanism includes a coupling interface, which is opened on the inner front wall of the measuring rod; a horizontal bubble plate is slidably connected to the inner walls of the left and right sides of the coupling interface, and a vertical bubble plate is slidably connected to the inner walls of the left and right sides of the coupling interface; a serial port is opened on the inner right side wall of the mounting head, and a movable rod is slidably connected to the inner ring of the serial port; a threaded groove is opened on the outer side wall of the movable rod, and an adjustment disc is fixedly connected to the right end of the movable rod.

[0007] As a further description of the above technical solution: the auxiliary mechanism includes a silicone sleeve, which contacts the outer side wall of the measuring rod, and Velcro is fixedly connected to the left and right ends of the silicone sleeve, and reflective tape is fixedly connected to the outer side wall of the silicone sleeve.

[0008] As a further description of the above technical solution: there are three interfaces, which are respectively opened on the front inner wall of the measuring rod, and the serial port passes through the right inner wall of the measuring rod.

[0009] As a further description of the above technical solution: the serial port penetrates the right inner wall of the horizontal bubble plate, the serial port penetrates the right inner wall of the vertical bubble plate, and the threaded groove is threadedly connected to the right inner wall of the serial port.

[0010] As a further description of the above technical solution: a frosted pad is fixedly connected to the outer side wall of the adjustment disc, and a directional mark is provided on the right outer side wall of the adjustment disc.

[0011] As a further description of the above technical solution: there are two Velcro straps, the width of the two Velcro straps is adapted to the width of the silicone sleeve, and the two Velcro straps are bonded to each other.

[0012] As a further description of the above technical solution: there are two silicone sleeves, which are symmetrical to each other and respectively contact the outer side wall of the measuring rod.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, by setting an adjustment mechanism and utilizing the linkage monitoring of the horizontal and vertical bubble plates, the horizontal state of the measuring rod can be adjusted in real time and intuitively to ensure that the measuring ruler head and the subway wheel rim are in horizontal contact, effectively avoiding errors caused by measurement angle deviation.

[0015] 2. In this utility model, the frosted pad and directional mark on the adjustment plate increase friction and indicate the direction of rotation, respectively, and simplify the installation and maintenance process of the bubble plate, reducing the probability of human error and ensuring the convenience and safety of measurement operations in all aspects.

[0016] 3. In this utility model, the silicone sleeve is quickly installed and removed using Velcro, which effectively solves the problem of the smooth surface of the measuring rod making it easy to slip out of the hand. The soft material reduces hand fatigue and improves the operator's grip comfort and measurement efficiency. The reflective stickers play a clear warning role in dim working environments, improving the visibility of the measuring personnel and equipment and avoiding the risk of accidental collisions. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the overall front view of a subway measuring ruler proposed in this utility model;

[0018] Figure 2 This is a schematic diagram showing the disassembled form of a subway measuring ruler proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the adjustment mechanism of a subway measuring ruler proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of an auxiliary mechanism for a subway measuring ruler proposed in this utility model.

[0021] Legend:

[0022] 1. Measuring rod; 2. Mounting head; 3. Measuring ruler head; 4. Adjustment mechanism; 41. Connecting interface; 42. Horizontal bubble plate; 43. Vertical bubble plate; 44. Serial port; 45. Movable rod; 46. Threaded groove; 47. Adjustment disc; 48. Pointing mark; 5. Auxiliary mechanism; 51. Silicone sleeve; 52. Velcro; 53. Reflective tape. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figures 1-3This utility model provides an embodiment of a subway measuring ruler, comprising a measuring rod 1 and a mounting head 2. The mounting head 2 is fixedly connected to the left and right ends of the measuring rod 1. A measuring ruler head 3 is fixedly connected to the outer side wall of the mounting head 2. The measuring ruler head 3 is used to directly contact the subway wheel rim for measurement. Its fixed connection with the mounting head 2 ensures the accuracy and stability of the measurement. An adjustment mechanism 4 and an auxiliary mechanism 5 are provided on the measuring rod 1. The adjustment mechanism 4 includes a mating interface 41, which is opened on the front inner wall of the measuring rod 1. The mating interface 41 provides installation space for the horizontal bubble plate 42 and the vertical bubble plate 43. The basic structure for realizing the horizontal adjustment function of measuring rod 1 includes a horizontal bubble plate 42 slidably connected to the inner walls of the left and right sides of interface 41, and a vertical bubble plate 43 slidably connected to the inner walls of the left and right sides of interface 41. A serial port 44 is opened on the inner right side of the mounting head 2. A movable rod 45 is slidably connected to the inner wall of the serial port 44. A threaded groove 46 is opened on the outer side of the movable rod 45. The threaded groove 46 is threaded with the inner wall of the serial port 44. By rotating the movable rod 45, the horizontal bubble plate 42 and the vertical bubble plate 43 can be tightened or loosened. The operation is convenient and the fixing effect is stable. An adjustment plate 47 is fixedly connected to the right end of the movable rod 45.

[0025] Reference Figures 2-4 There are three interfaces 41, which are respectively opened on the inner wall of the front side of the measuring rod 1. The serial port 44 passes through the inner wall of the right side of the measuring rod 1, the inner wall of the horizontal bubble plate 42, and the inner wall of the vertical bubble plate 43. The threaded groove 46 is threaded to the inner wall of the right side of the serial port 44. A frosted pad is fixedly connected to the outer side of the adjusting plate 47. The frosted pad can increase the friction between the operator's hand and the adjusting plate 47, making it easier and more stable to rotate the adjusting plate 47 and preventing slippage. A directional mark 48 is opened on the outer right side of the adjusting plate 47. The directional mark 48 can intuitively indicate the rotation direction of the adjusting plate 47 to the operator, which facilitates accurate operation when installing and maintaining the bubble plate and avoids improper installation due to incorrect direction.

[0026] Reference Figures 3-4The auxiliary mechanism 5 includes a silicone sleeve 51, which contacts the outer side wall of the measuring rod 1. The silicone sleeve 51 is soft and improves the operator's grip feel when worn over the measuring rod 1, while also providing cushioning to reduce hand fatigue. Velcro 52 is fixedly connected to both ends of the silicone sleeve 51, facilitating quick installation and removal for easy replacement or cleaning as needed. Reflective tape 53 is fixedly connected to the outer side wall of the silicone sleeve 51, reflecting light in dim environments to serve as a warning, alerting surrounding personnel to the presence of the measuring personnel and equipment, and preventing collisions or other accidents. There are two Velcro 52s, their widths matching the width of the silicone sleeve 51, and they are bonded together. There are also two silicone sleeves 51, symmetrically positioned and each contacting the outer side wall of the measuring rod 1.

[0027] Working principle: When using the measuring head 3, the horizontal state of the measuring rod 1 is adjusted quickly and in real time by observing the vertical bubble plate 43 and the horizontal bubble plate 42, so that the measuring head 3 is in a horizontal state when measuring the subway wheel rim, avoiding measurement errors. At the same time, when a single bubble plate is damaged and needs to be replaced, the direction of rotation is known by observing the indicator mark 48. Then, the adjusting plate 47 is rotated to rotate the thread groove 46. The thread groove 46 rotates and separates from the inner thread of the serial port 44. Then, the movable rod 45 is pulled out of the serial port 44, and the serial port 44 is pulled out from the horizontal bubble plate 42 and the vertical bubble plate 43. Then, the horizontal bubble plate 42 that needs maintenance is taken out from the interface 41 and replaced. At the same time, the smooth surface of the measuring rod 1 is easy to slip and wear when personnel frequently use it in direct contact. By using Velcro 52, the silicone sleeve 51 is wrapped around the outside of the measuring rod 1, making it comfortable for personnel to hold and preventing slippage. At the same time, the reflective sticker 53 alerts the surrounding personnel to abnormal reflection when working in dim areas.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A subway measuring ruler, comprising a measuring rod (1) and a mounting head (2), characterized in that: The mounting head (2) is fixedly connected to the left and right ends of the measuring rod (1). The measuring ruler head (3) is fixedly connected to the outer side wall of the mounting head (2). The measuring rod (1) is provided with an adjustment mechanism (4) and an auxiliary mechanism (5). The adjustment mechanism (4) includes a docking interface (41), which is located on the inner wall of the front side of the measuring rod (1). A horizontal bubble plate (42) is slidably connected to the inner walls of the left and right sides of the docking interface (41). A vertical bubble plate (43) is slidably connected to the inner walls of the left and right sides of the docking interface (41). A serial port (44) is provided on the inner wall of the right side of the mounting head (2). A movable rod (45) is slidably connected to the inner wall of the inner ring of the serial port (44). A threaded groove (46) is provided on the outer side wall of the movable rod (45). An adjustment disc (47) is fixedly connected to the right end of the movable rod (45).

2. The subway measuring scale according to claim 1, characterized in that: The auxiliary mechanism (5) includes a silicone sleeve (51), which contacts the outer side wall of the measuring rod (1). Velcro (52) is fixedly connected to the left and right ends of the silicone sleeve (51), and reflective tape (53) is fixedly connected to the outer side wall of the silicone sleeve (51).

3. The subway measuring scale according to claim 1, characterized in that: There are three interfaces (41), which are respectively opened on the front inner wall of the measuring rod (1), and the serial port (44) penetrates the right inner wall of the measuring rod (1).

4. The subway measuring scale according to claim 1, characterized in that: The serial port (44) penetrates the right inner wall of the horizontal bubble plate (42), the serial port (44) penetrates the right inner wall of the vertical bubble plate (43), and the threaded groove (46) is threadedly connected to the right inner wall of the serial port (44).

5. The subway measuring scale according to claim 1, characterized in that: A frosted pad is fixedly connected to the outer side wall of the adjustment disc (47), and a directional mark (48) is provided on the right outer side wall of the adjustment disc (47).

6. The subway measuring scale according to claim 2, characterized in that: There are two hook and loop fasteners (52), and the width of the two hook and loop fasteners (52) is adapted to the width of the silicone sleeve (51). The two hook and loop fasteners (52) are glued to each other.

7. The subway measuring scale according to claim 2, wherein: There are two silicone sleeves (51), which are symmetrical to each other and respectively contact the outer side wall of the measuring rod (1).

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