Railway platform gauge measuring scale

Abstract

The utility model relates to the technical field of railway measuring equipment, in particular to a railway platform limit measuring scale which comprises a transverse scale and an inclined scale, an L-shaped measuring scale is hinged to the inclined scale, and a fixed measuring head and a fixed end measuring seat are arranged at the fixed end of the transverse scale. The movable end of the transverse ruler is provided with a movable measuring head, a connecting mechanism, a movable end measuring seat, a sliding block, a tension spring assembly and a displacement sensor, the connecting mechanism is fixedly connected with the transverse ruler and located between the fixed measuring head and the movable measuring head, the inclined ruler is hinged to the connecting mechanism, the sliding block is in sliding connection with the transverse ruler, and the movable end measuring seat is located between the sliding block and the movable end measuring seat. The tension spring assembly and the displacement sensor are respectively located at two sides of the sliding block and are connected with the sliding block, the other end of the tension spring assembly is connected with the transverse ruler or the movable end measuring seat, and the movable measuring head is connected with the sliding block. The device is reasonable in design and stable in structure, guarantees the measurement precision in the measurement process, and improves the precision of a measurement result.

Description

Technical Field

[0001] The utility model relates to the technical field of railway measuring equipment, in particular to a railway platform clearance measuring ruler. Background Art

[0002] Railway platform clearance is related to the safety of train operation and the personal safety of passengers when getting on and off the train. Therefore, regular measurement and maintenance of railway platform clearance is very important. The platform clearance dimensions are divided into horizontal clearance dimensions and vertical clearance dimensions. The horizontal clearance dimension is the distance from a point on the platform side elevation to the perpendicular line of the track surface; the vertical clearance dimension is the distance from a point on the edge of the platform top surface to the track plane. The platform clearance dimensions can be divided into line no superelevation (such as Figure 1 as shown) and with superelevation (as shown Figure 2 There are two situations (as shown). When there is no superelevation, the measurement is relatively simple. When there is superelevation, the angle between the line and the horizontal plane needs to be calculated and substituted into the calculation. Combined with the on-site conditions, the measurement principle is to use trigonometric functions to calculate the limit size.

[0003] Existing platform gauge rulers consist of a horizontal ruler and an oblique ruler. The horizontal ruler is attached to the track, while the oblique ruler is attached at an angle to the edge of the platform top surface to measure platform gauge dimensions. However, existing platform gauge rulers have some drawbacks. These rulers are unstable during measurement, making it difficult to ensure measurement accuracy, which in turn affects the accuracy of the measurement results. Summary of the Invention

[0004] The purpose of the utility model is to provide a railway platform limit measuring ruler to address the deficiencies of the existing technology. The ruler has a reasonable design and is easy to use. The ruler can ensure the stability of the horizontal ruler and the inclined ruler during the measurement process, thereby ensuring the accuracy of the measurement results.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a railway platform limit measuring ruler, comprising a horizontal ruler and an inclined ruler, the horizontal ruler is provided with a first inclination sensor and a horizontal ruler display box, the inclined ruler is provided with a second inclination sensor and a inclined ruler display box, the end of the inclined ruler is hinged with an L-shaped measuring ruler, the fixed end of the horizontal ruler is provided with a fixed probe and a fixed end measuring seat, the movable end of the horizontal ruler is provided with a movable probe, a connecting mechanism, a movable end measuring seat, a slider, a tension spring assembly and a displacement sensor, the connecting mechanism is fixedly connected to the horizontal ruler, the connecting mechanism is located between the fixed probe and the movable probe, the inclined ruler is hinged to the connecting mechanism, the slider is slidably connected to the horizontal ruler, the tension spring assembly and the displacement sensor are respectively located on both sides of the slider and are connected to the slider, the other end of the tension spring assembly is connected to the horizontal ruler or the movable end measuring seat, and the movable probe is connected to the slider.

[0006] Furthermore, the slider is provided with a track gauge adjusting screw, the horizontal ruler and the movable end measuring seat are correspondingly provided with long strip holes, and the track gauge adjusting screw passes through the long strip holes and is threadedly connected to the slider.

[0007] Furthermore, the fixed end measuring base is a T-shaped structure, and the width of the fixed end measuring base is greater than the width of the horizontal ruler.

[0008] Furthermore, the inclined ruler includes a fixed rod and a telescopic rod, and the telescopic rod is movably connected to the fixed rod.

[0009] Furthermore, the inclined scale is provided with a magnetic grating sensor, the magnetic grating of the magnetic grating sensor is connected to the telescopic rod, and the magnetic grating scale reading head of the magnetic grating sensor is connected to the fixed rod.

[0010] Furthermore, a hydraulic buffer is provided at the bottom of the fixing rod.

[0011] Furthermore, an inclined ruler support block and / or an L-shaped measuring ruler support block is provided above the horizontal ruler.

[0012] The beneficial effects of the present utility model are as follows: a railway platform limit measuring ruler comprises a horizontal ruler and an inclined ruler, the horizontal ruler is provided with a first inclination sensor and a horizontal ruler display box, the inclined ruler is provided with a second inclination sensor and an inclined ruler display box, an L-shaped measuring ruler is hinged at the end of the inclined ruler, the fixed end of the horizontal ruler is provided with a fixed probe and a fixed end measuring seat, the movable end of the horizontal ruler is provided with a movable probe, a connecting mechanism, a movable end measuring seat, a slider, a tension spring assembly and a displacement sensor, the connecting mechanism is fixedly connected to the horizontal ruler, the connecting mechanism is located between the fixed probe and the movable probe, the inclined ruler is hinged to the connecting mechanism, the slider is slidably connected to the horizontal ruler, the tension spring assembly and the displacement sensor are respectively located on both sides of the slider and are connected to the slider, the other end of the tension spring assembly is connected to the horizontal ruler or the movable end measuring seat, and the movable probe is connected to the slider. The utility model has a reasonable design and a stable structure, which ensures the measurement accuracy and measurement stability during the measurement process and improves the accuracy of the measurement results. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the track line without exceeding the situation.

[0014] Figure 2 This is a schematic diagram of a track line with superelevation.

[0015] Figure 3 It is a structural diagram of the present utility model.

[0016] Figure 4 It is a perspective view of the present utility model.

[0017] Figure 5 yes Figure 4 Enlarged view of the local structure.

[0018] Figure 6 It is a schematic diagram of the measurement model.

[0019] Description of reference numerals:

[0020] 1——horizontal ruler, 2——incline ruler, 2-1——fixed rod, 2-2——telescopic rod, 3——first inclination sensor, 4——horizontal ruler display box, 5——second inclination sensor, 6——incline ruler display box, 7——L-shaped measuring ruler, 8——fixed measuring head, 9——fixed end measuring head, 10——movable measuring head, 11——connecting mechanism, 12——movable end measuring head, 13——slider, 14——tension spring assembly, 15——displacement sensor, 16——gauge adjusting screw, 17——long strip hole, 18——hydraulic buffer, 19——incline ruler support block, 20——L-shaped measuring ruler support block. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but the scope of implementation of the present invention is not limited thereto.

[0022] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0024] like Figure 3 、 Figure 4 and Figure 5As shown, a railway platform limit measuring ruler of this embodiment includes a horizontal ruler 1 and a diagonal ruler 2, the horizontal ruler 1 is provided with a first inclination sensor 3 and a horizontal ruler display box 4, the diagonal ruler 2 is provided with a second inclination sensor 5 and a diagonal ruler display box 6, the end of the diagonal ruler 2 is hinged with an L-shaped measuring ruler 7, the fixed end of the horizontal ruler 1 is provided with a fixed probe 8 and a fixed end measuring seat 9, the fixed probe 8 is located on the inner side of the fixed end measuring seat 9, the movable end of the horizontal ruler 1 is provided with a movable probe 10, a connecting mechanism 11, a movable end measuring seat 12, a slider 13, a tension spring assembly 14 and a displacement sensor 15, the movable probe 10 is located on the inner side of the movable end measuring seat 12, the connecting mechanism 11 is fixedly connected to the horizontal ruler 1, and the connecting mechanism 11 is located between the fixed probe 8 and the movable probe 10, the inclined ruler 2 is hinged to the connecting mechanism 11. When the line is superelevated, the inclined ruler 2 will apply a horizontal thrust to the cross ruler 1. The horizontal thrust can make the fixed probe 8 close to the inner wall of the rail, thereby improving the measurement accuracy. The slider 13 is slidably connected to the cross ruler 1, and the tension spring assembly 14 and the displacement sensor 15 are respectively located on both sides of the slider 13 and connected to the slider 13. Preferably, the displacement sensor 15 is a pull rod sensor, the slider 13 is connected to the sensor pull rod, and the other end of the tension spring assembly 14 is connected to the cross ruler 1 or the movable end measuring seat 12. The movable measuring head 10 is connected to the slider 13. The movable end measuring seat 12 and the bottom of the cross ruler are provided with slots to facilitate the movable measuring head 10 to slide with the slider 13.

[0025] During measurement, the horizontal ruler 1 is placed above the track, the fixed probe 8 contacts the inner side of one rail, and the movable probe 10 contacts the inner side of the other rail under the action of the tension spring assembly 14. The horizontal ruler 1 can measure the track gauge value, superelevation value and the angle between the horizontal ruler 1 and the horizontal plane using the displacement sensor 15 and the first inclination sensor 3. The values measured by the horizontal ruler 1 can be directly read on the display device of the horizontal ruler display box 4; the inclined ruler 2 can measure the distance from the center of the L-shaped measuring ruler rotation axis to the center of the inclined ruler connecting axis and the angle between the inclined ruler 2 and the horizontal plane using the magnetic grating sensor and the second inclination sensor 5. Based on the values measured by the horizontal ruler 1 and the inclined ruler 2, the platform limit size can be calculated, and the limit size can be directly read from the display device on the inclined ruler display box 6.

[0026] See also Figure 6 , the calculation process for exceeding the platform limit size is as follows:

[0027] L=cos(A+B)*S+L2-track gauge*1 / 2+cos(45°-B)*S1

[0028] H=sin(A+B)*S+H1-sin(45°-B)*S1

[0029] Among them, A: angle of the bevel ruler, B: angle of the horizontal ruler, S: distance from the center of the L-shaped measuring ruler's rotating shaft to the center of the bevel ruler's connecting shaft, H1: distance from the track surface to the center of the bevel ruler's connecting shaft, L2: distance from the measuring point of the fixed probe 8 to the center of the bevel ruler's connecting shaft, S1: distance from the measuring point of the platform edge to the center of the L-shaped measuring ruler's rotating shaft, H: limit vertical dimension, L: limit horizontal dimension, H1 and S1 are known parameters.

[0030] The slider 13 is provided with a gauge adjustment screw 16. The crossbar 1 and the movable end probe 12 are correspondingly provided with elongated holes 17. The gauge adjustment screw 16 passes through the elongated hole 17 and is threadedly connected to the slider 13. An anti-slip pad is provided between the head of the gauge adjustment screw 16 and the movable end probe 12. The gauge adjustment screw 16 slides along the elongated hole 17, driving the slider 13 to slide, thereby adjusting the track gauge. In addition, if the track line is superelevated, the tilt of the crossbar 1 will generate thrust on the movable probe 10. By tightening the gauge adjustment screw, the head of the gauge adjustment screw 16 is pressed against the movable end probe 12, thereby ensuring the stability of the slider 13 and facilitating measurement accuracy.

[0031] The fixed end measuring base 9 is a T-shaped structure, and the width of the fixed end measuring base 9 is greater than the width of the horizontal ruler 1. During measurement, the fixed end measuring base 9 is placed on the rail. The T-shaped structure is conducive to improving the stability during measurement, thereby ensuring the measurement accuracy.

[0032] The incline ruler 2 includes a fixed rod 2-1 and a telescopic rod 2-2, the telescopic rod 2-2 being movably connected to the fixed rod 2-1. Preferably, the second incline sensor 5 is disposed on the fixed rod 2-1, and the L-shaped measuring ruler 7 is hingedly connected to the telescopic rod 2-2. The telescopic rod 2-2 allows the length of the incline ruler 2 to be adjusted for measuring platforms at different heights.

[0033] The inclined ruler 2 is provided with a magnetic grating sensor for measuring the length of the inclined ruler 2. The magnetic grating of the magnetic grating sensor is connected to the telescopic rod 2-2, and the magnetic grating scale reading head of the magnetic grating sensor is connected to the fixed rod 2-1.

[0034] A hydraulic buffer 18 is provided at the bottom of the fixed rod 2-1 to reduce the impact force on the fixed rod 2-1 when the telescopic rod 2-2 is retracted, thereby extending the service life of the inclined ruler 2 and ensuring the measurement accuracy of the inclined ruler 2. In addition, a copper bar is provided between the fixed rod 2-1 and the telescopic rod 2-2 to increase the resistance of the telescopic rod 2-2 when it is extended and retracted, reducing the impact force when the telescopic rod 2-2 is retracted, extending the service life of the inclined ruler 2 and ensuring the measurement accuracy of the inclined ruler 2.

[0035] A bevel ruler support block 19 and / or an L-shaped measuring ruler support block 20 are provided above the horizontal ruler 1. After the bevel ruler 2 is recovered, the bevel ruler 2 can be fixed by the bevel ruler support block 19 and the L-shaped measuring ruler 7 can be fixed by the L-shaped measuring ruler support block 20.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the scope of protection of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A railway platform clearance measuring ruler, characterized by: The invention comprises a horizontal ruler (1) and an inclined ruler (2), wherein the horizontal ruler (1) is provided with a first inclination sensor (3) and a horizontal ruler display box (4), the inclined ruler (2) is provided with a second inclination sensor (5) and an inclined ruler display box (6), an L-shaped measuring ruler (7) is hingedly connected to the end of the inclined ruler (2), the fixed end of the horizontal ruler (1) is provided with a fixed probe (8) and a fixed end measuring seat (9), the movable end of the horizontal ruler (1) is provided with a movable probe (10), a connecting mechanism (11), a movable end measuring seat (12), a slide block (13), a tension spring assembly (14) and a displacement sensor (15), the connecting mechanism (1 1) is fixedly connected to the horizontal ruler (1), the connecting mechanism (11) is located between the fixed probe (8) and the movable probe (10), the inclined ruler (2) is hinged to the connecting mechanism (11), the slider (13) is slidably connected to the horizontal ruler (1), the tension spring assembly (14) and the displacement sensor (15) are respectively located on both sides of the slider (13) and connected to the slider (13), the other end of the tension spring assembly (14) is connected to the horizontal ruler (1) or the movable end probe (12), and the movable probe (10) is connected to the slider (13).

2. The railway platform clearance measuring ruler according to claim 1, characterized in that: The slider (13) is provided with a track gauge adjusting screw (16), the horizontal ruler (1) and the movable end measuring seat (12) are correspondingly provided with long strip holes (17), and the track gauge adjusting screw (16) passes through the long strip holes (17) and is threadedly connected to the slider (13).

3. The railway platform clearance measuring ruler according to claim 1, characterized in that: The fixed end measuring seat (9) is a T-shaped structure, and the width of the fixed end measuring seat (9) is greater than the width of the horizontal ruler (1).

4. The railway platform clearance measuring ruler according to claim 1, characterized in that: The inclined ruler (2) comprises a fixed rod (2-1) and a telescopic rod (2-2), and the telescopic rod (2-2) is movably connected to the fixed rod (2-1).

5. The railway platform clearance measuring ruler according to claim 4, characterized in that: The inclined scale (2) is provided with a magnetic grating sensor, the magnetic grating of the magnetic grating sensor is connected to the telescopic rod (2-2), and the magnetic grating scale reading head of the magnetic grating sensor is connected to the fixed rod (2-1).

6. The railway platform clearance measuring ruler according to claim 4, characterized in that: A hydraulic buffer (18) is provided at the bottom of the fixing rod (2-1).

7. The railway platform clearance measuring ruler according to claim 1, characterized in that: An inclined ruler support block (19) and / or an L-shaped measuring ruler support block (20) are provided above the horizontal ruler (1).

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