Mounting device for accelerometer of subway VOBC signal system

Abstract

The utility model relates to the technical field of subway VOBC signal systems, in particular to a mounting device for an accelerometer of a subway VOBC signal system. The installation device for the accelerometer of the subway VOBC signal system specifically comprises the accelerometer; the accelerometer is fixedly connected with the base; the leveling mechanism comprises a connecting rod, a first upper adjusting piece, a first lower adjusting piece, a second upper adjusting piece and a second lower adjusting piece, the connecting rod penetrates through the base and clamps the base through the first upper adjusting piece and the second lower adjusting piece to be fixed, and the other end of the connecting rod penetrates through the vehicle bottom plate and clamps the vehicle bottom plate through the second upper adjusting piece and the second lower adjusting piece to be fixed. The accelerometer provided by the utility model has the advantages of small reading fluctuation and easy adjustment.

Description

Technical Field

[0001] This utility model relates to the technical field of subway VOBC signaling system, and in particular to an installation device for an accelerometer in a subway VOBC signaling system. Background Technology

[0002] The Thales VOBC signaling system for subways uses accelerometers to measure position and train speed. The accelerometers are installed on the floor of the train body and are greatly affected by the vibration of the subway train and the gradient, resulting in large fluctuations in the accelerometer readings and a lot of false alarms.

[0003] The existing method for adjusting train accelerometers mainly involves adding or removing aluminum shims between the train floor plate and the accelerometer base to adjust the accelerometer's level. However, the size and shape of the aluminum shims are subject to significant human error during cutting, and the shims are prone to displacement, resulting in large fluctuations in the accelerometer readings. Adjusting a single accelerometer takes approximately 30 minutes, which is a lengthy process.

[0004] Therefore, an installation device for an accelerometer in a subway VOBC signal system is provided to address the shortcomings of existing technologies. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, this utility model provides an installation device for an accelerometer in a subway VOBC signal system, which aims to solve the problems of large fluctuations in accelerometer readings and long adjustment times.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An installation device for an accelerometer in a subway VOBC signaling system, comprising:

[0008] Accelerometer;

[0009] The accelerometer is fixedly connected to the base.

[0010] The leveling mechanism includes a connecting rod, a first upper adjusting member, a first lower adjusting member, a second upper adjusting member, and a second lower adjusting member. The connecting rod passes through the base and is fixed by clamping the base with the first upper adjusting member and the first lower adjusting member. The other end of the connecting rod passes through the vehicle floor plate and is fixed by clamping the vehicle floor plate with the second upper adjusting member and the second lower adjusting member.

[0011] As a further improvement to the technical solution of this utility model, the first upper adjusting member and the first lower adjusting member include a first nut, a first washer and a first gasket, the first washer is located between the first nut and the first gasket, the first gasket abuts against the upper and lower surfaces of the base, and the first nut is threadedly connected to the connecting rod.

[0012] As a further improvement to the technical solution of this utility model, the second upper adjusting member and the second lower adjusting member include a second nut, a second washer and a second washer, the second washer is located between the second nut and the second washer, the second washer abuts against the upper and lower surfaces of the vehicle bottom plate, and the second nut is threadedly connected to the connecting rod.

[0013] As a further improvement to the technical solution of this utility model, the base includes several through holes for the connecting rod to pass through, and the through holes are elongated holes.

[0014] As a further improvement to the technical solution of this utility model, the first washer is a rubber ring.

[0015] As a further improvement to the technical solution of this utility model, the second washer is a rubber ring.

[0016] As a further improvement to the technical solution of this utility model, the top of the accelerometer is provided with a direction mark, which faces the direction of the train's movement.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] In the accelerometer installation device for the subway VOBC signal system provided by this utility model, two accelerometers are fixed to the base during installation. A connecting rod passes through the base and is fixed by upper and lower adjusting components. The other end of the connecting rod passes through the undercarriage plate and is fixed by a second upper and second lower adjusting component. The leveling mechanism can precisely adjust the levelness and reading of the accelerometers. Simultaneously, it can reduce the fluctuations in accelerometer readings caused by external factors such as vibration and gradient generated during train operation, thereby improving equipment detection and fault handling capabilities. The accelerometer installation device for the subway VOBC signal system of this utility model features small fluctuations in accelerometer readings and ease of adjustment. Attached Figure Description

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the installation device for the accelerometer in the subway VOBC signal system of this utility model;

[0021] Figure 2 This is a front view of the installation device for the accelerometer in the subway VOBC signal system of this utility model;

[0022] Figure 3 This is a top view of the installation device for the accelerometer in the subway VOBC signal system of this utility model.

[0023] In the picture:

[0024] 1. Accelerometer;

[0025] 2. Base; 21. Through hole;

[0026] 3. Leveling mechanism; 31. Connecting rod; 32. First upper adjusting component; 33. First lower adjusting component; 331. First nut; 332. First washer; 333. First shim; 34. Second upper adjusting component; 35. Second lower adjusting component; 351. Second nut; 352. Second washer; 353. Second shim;

[0027] 4. Vehicle floor plate. Detailed Implementation

[0028] The following will provide a clear and complete description of the concept, specific structure, and technical effects of this utility model in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, solution, and effects of this utility model. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The same reference numerals used throughout the drawings indicate the same or similar parts.

[0029] It should be noted that, unless otherwise specified, when a feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or it can be indirectly fixed or connected to the other feature. Furthermore, the descriptions of "upper," "lower," "left," and "right" used in this utility model are only relative to the relative positional relationships of the various components of this utility model in the accompanying drawings.

[0030] Reference Figures 1 to 3 An installation device for an accelerometer 1 in a subway VOBC signaling system includes an accelerometer 1, a base 2, and a leveling mechanism 3.

[0031] In one embodiment, the accelerometer 1 is fixedly connected to the base 2; the leveling mechanism 3 includes a connecting rod 31, a first upper adjusting member 32, a first lower adjusting member 33, a second upper adjusting member 34, and a second lower adjusting member 35. The connecting rod 31 passes through the base 2 and is fixed by the first upper adjusting member 32 and the first lower adjusting member 33. The other end of the connecting rod 31 passes through the vehicle floor plate 4 and is fixed by the second upper adjusting member 34 and the second lower adjusting member 35. The leveling mechanism 3 is used to support the accelerometer 1, raise or lower the accelerometer 1, and achieve vertical displacement; the accelerometer 1 is used for train speed detection and compensation. Preferably, the base 2 is made of metal.

[0032] During installation, two accelerometers 1 are fixed to the base 2. A connecting rod 31 passes through the base 2 and is fixed by upper and lower adjusting components. The other end of the connecting rod 31 passes through the undercarriage plate 4 and is fixed by a second upper adjusting component 34 and a second lower adjusting component 35. The leveling mechanism 3 can precisely adjust the levelness and reading of the accelerometers 1. Simultaneously, it reduces the fluctuations in the accelerometer readings caused by external factors such as vibrations and gradients during train operation, improving equipment detection and fault handling capabilities. This utility model's installation device for the accelerometers 1 in the subway VOBC signal system features minimal fluctuations in accelerometer readings and ease of adjustment. The time required to adjust the reading of a single accelerometer 1 is reduced from approximately 30 minutes to approximately 3 minutes, significantly reducing work time and greatly improving labor efficiency.

[0033] In one embodiment, the first upper adjusting member 32 and the first lower adjusting member 33 include a first nut 331, a first washer 332, and a first gasket 333. The first washer 332 is located between the first nut 331 and the first gasket 333. The first gasket 333 abuts against the upper and lower surfaces of the base 2. The first nut 331 is threadedly connected to the connecting rod 31. Preferably, the first washer 332 is a rubber ring, which serves to dampen vibrations.

[0034] In one embodiment, the second upper adjusting member 34 and the second lower adjusting member 35 include a second nut 351, a second washer 352, and a second washer 353. The second washer 352 is located between the second nut 351 and the second washer 353. The second washer 353 abuts against the upper and lower surfaces of the vehicle floor plate 4. The second nut 351 is threadedly connected to the connecting rod 31. Preferably, the second washer 352 is a rubber ring, which serves to absorb shock.

[0035] In one embodiment, the base 2 includes a plurality of through holes 21 through which the connecting rod 31 passes, and the through holes 21 are elongated holes.

[0036] In one embodiment, the accelerometer 1 has a direction mark at its top, with the direction mark pointing in the direction of the train's movement. Preferably, the direction mark is "+".

[0037] Other aspects of the installation device for the accelerometer of the subway VOBC signal system described in this utility model are referred to in the prior art and will not be repeated here.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. An installation device for an accelerometer in a subway VOBC signaling system, characterized in that, include: Accelerometer; The accelerometer is fixedly connected to the base. The leveling mechanism includes a connecting rod, a first upper adjusting member, a first lower adjusting member, a second upper adjusting member, and a second lower adjusting member. The connecting rod passes through the base and is fixed by clamping the base with the first upper adjusting member and the first lower adjusting member. The other end of the connecting rod passes through the vehicle floor plate and is fixed by clamping the vehicle floor plate with the second upper adjusting member and the second lower adjusting member.

2. The installation device for an accelerometer in a subway VOBC signal system according to claim 1, characterized in that, The first upper adjusting member and the first lower adjusting member each include a first nut, a first washer, and a first gasket. The first washer is located between the first nut and the first gasket. The first gasket abuts against the upper and lower surfaces of the base. The first nut is threadedly connected to the connecting rod.

3. The installation device for an accelerometer in a subway VOBC signal system according to claim 1, characterized in that, The second upper adjusting member and the second lower adjusting member include a second nut, a second washer and a second washer. The second washer is located between the second nut and the second washer. The second washer abuts against the upper and lower surfaces of the vehicle floor plate. The second nut is threadedly connected to the connecting rod.

4. The installation device for an accelerometer in a subway VOBC signal system according to claim 1, characterized in that, The base includes several through holes for connecting rods to pass through, and the through holes are elongated holes.

5. The installation device for an accelerometer in a subway VOBC signal system according to claim 2, characterized in that, The first washer is a rubber ring.

6. The installation device for an accelerometer in a subway VOBC signal system according to claim 3, characterized in that, The second washer is a rubber ring.

7. The installation device for an accelerometer in a subway VOBC signal system according to claim 1, characterized in that, The accelerometer has a directional marker at its top, which faces the direction of the train's movement.

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