A subway vehicle body height measuring device

Abstract

The utility model discloses a subway vehicle body height measuring device, including handheld terminal and with a plurality of monitoring module of handheld terminal electricity connection, each monitoring module includes box body and installs distance measuring system in box body, and the bottom surface of box body is equipped with the through groove of the horizontal both ends through of notch downward, and the through groove can be embedded for the door sill upper end of vehicle door, and the top of box body is equipped with the handle, distance measuring system includes range sensor, and range sensor is used for measuring the interval between door sill and vehicle bottom, and range sensor is electrically connected with handheld terminal, the bottom of box body still is equipped with the through -hole of intercommunication box and outside, and the size of through -hole is less than the size of range sensor, and range sensor is installed in the inside of box body and is located above the through -hole. Can in the process of body height adjustment, real -time monitoring the interval between door sill and vehicle bottom, and display on the display screen of handheld terminal, and the body height adjustment operation is convenient, and has improved the body height adjustment operation efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of height measurement technology, specifically relating to a device for measuring the height of a subway vehicle body. Background Technology

[0002] Currently, the measurement and adjustment of subway car body height is challenging due to the complex mechanical structure of the A4A5 subway cars. Each adjustment affects the parameters of the entire car, requiring a large number of people and time-consuming measurements. Using a measuring tape may also compromise the accuracy of the readings. Car body leveling typically requires four people to carry out the work, with three assisting in taking the readings and one person performing the adjustment. The adjustment time generally depends on the actual working conditions of the bogies, ranging from half an hour to four hours, resulting in low efficiency.

[0003] Therefore, a new technology is needed to solve the problem that existing technologies are inconvenient for measuring and adjusting the height of subway vehicles. Utility Model Content

[0004] To address the aforementioned problems in the prior art, this utility model provides a subway vehicle body height measuring device, which facilitates the measurement and adjustment of subway vehicle body height.

[0005] The present invention adopts the following technical solution:

[0006] A subway vehicle body height measuring device includes a handheld terminal and several monitoring modules electrically connected to the handheld terminal. The handheld terminal is equipped with a display. Each monitoring module includes a housing and a distance measuring system installed inside the housing. The bottom surface of the housing has a through slot with its opening facing downwards and both ends open, through slots into which the upper end of the vehicle door sill can be inserted. The top of the housing is equipped with a handle. The distance measuring system includes a distance sensor for measuring the distance to be measured between the door sill and the bottom of the vehicle. The distance sensor is electrically connected to the handheld terminal.

[0007] The bottom of the box is also provided with a through hole connecting the inside of the box to the outside. The size of the through hole is smaller than the size of the ranging sensor. The ranging sensor is installed inside the box and above the through hole.

[0008] As a further improvement to the technical solution of this utility model, it also includes a counterweight. The bottom surface of the box body is horizontally provided with a first installation area and a second installation area. The first installation area and the second installation area are respectively located on both sides of the through groove. The first installation area is used to install the ranging sensor. The through hole is located in the first installation area. The second installation area is used to place the counterweight.

[0009] As a further improvement to the technical solution of this utility model, the distance measurement system also includes a detection rod, which is used to be placed horizontally at the bottom of the vehicle, and the distance sensor is used to detect the vertical distance between the door sill and the detection rod.

[0010] As a further improvement to the technical solution of this utility model, a first groove and a second groove are provided at intervals on the bottom surface inside the box body, the bottom of the first groove forms the first mounting area, and the bottom of the second groove forms the second mounting area.

[0011] As a further improvement to the technical solution of this utility model, a protrusion is provided on the bottom surface inside the box body. The protrusion is located between the first groove and the second groove, and the protrusion corresponds to the bottom of the through groove.

[0012] As a further improvement to the technical solution of this utility model, the first groove is provided with a first sidewall on the side near the protrusion, the second groove is provided with a second sidewall on the side near the protrusion, and the upper end of the protrusion is provided with a top surface horizontally. The first mounting area, the first sidewall, the top surface, the second sidewall, and the second mounting area are connected in sequence to form an approximate Z-shape.

[0013] As a further improvement to the technical solution of this utility model, the first installation area and the second installation area are located on the same horizontal plane.

[0014] As a further improvement to the technical solution of this utility model, the vertical distance between the top surface and the first installation area is not less than 15 mm.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] The subway vehicle body height measuring device in this solution can monitor the distance between the door sill and the bottom of the vehicle in real time during body height adjustment, and display the data on the handheld terminal screen, facilitating body height adjustment operations and improving efficiency. Four of these subway vehicle body height measuring devices are placed sequentially at four locations on the vehicle body, and all four devices are powered on. They automatically connect to the handheld terminal and automatically display the real-time height data at the four measurement points. This allows for simultaneous collection and real-time display of data from four measurement points, enabling multi-point measurement simultaneously, and the device's design dimensions meet the installation requirements at the vehicle door sill. Attached Figure Description

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0018] Figure 1 This is a sectional view of the box structure;

[0019] Figure 2 This is a top view of the inside of the box;

[0020] Figure 3 It is an isometric drawing of the box.

[0021] Figure 4 It is based on the principle of electrical connection between four monitoring modules and a handheld terminal;

[0022] Figure 5 This is a circuit diagram for distance measurement.

[0023] Figure label:

[0024] 1-Handheld terminal;

[0025] 2-Box body; 21-Handle; 22-Through groove; 23-First groove; 231-First mounting area; 24-Second groove; 241-Second mounting area; 25-Protrusion; 251-Top surface; 26-Through hole;

[0026] 3-Distance sensor;

[0027] 4-Counterweight;

[0028] 5-Distance measurement circuit; 51-Lithium battery protection circuit; 511-Battery; 512-Lithium battery protection chip; 52-Charge and discharge management circuit; 53-Boost and buck voltage regulator circuit; 54-WIFI serial port module. Detailed Implementation

[0029] 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.

[0030] 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.

[0031] Reference Figures 1 to 5A subway vehicle body height measuring device includes a handheld terminal 1 and several monitoring modules electrically connected to the handheld terminal 1. The handheld terminal 1 is equipped with a display or screen. Each monitoring module includes a housing 2 and a distance measuring system installed inside the housing 2. The bottom surface of the housing 2 has a downward-facing through groove 22, which allows the upper end of the vehicle door sill to be inserted. The through groove 22 is horizontally connected at opposite ends to facilitate the insertion of the door sill. The through groove 22 is located on the outside of the housing. The top of the housing 2 has a handle 21. The distance measuring system includes a distance sensor 3, which is an infrared laser distance sensor. The distance sensor 3 is used to measure the distance between the door sill and the bottom of the vehicle. The distance sensor 3 is electrically connected to the handheld terminal 1. The bottom of the box body 2 is also provided with a through hole 26 connecting the inside of the box to the outside. The size of the through hole 26 is smaller than the size of the ranging sensor 3. The ranging sensor 3 is installed inside the box body 2 and above the through hole 26. The through hole 26 is used for the transmission and reception of infrared light from the infrared laser ranging sensor to avoid blocking the infrared light. The through hole 26 can be set in the first mounting area 231 or in a position adjacent to the first mounting area 231.

[0032] The box 2 can be placed on the door sill of the vehicle for real-time detection. It has a simple structure, is lightweight, can be operated by one person, is easy to operate, and can be quickly installed on the vehicle body for convenient on-site use. During vehicle height adjustment, it can monitor the distance between the door sill and the bottom of the vehicle in real time and display it on the monitor screen, facilitating vehicle height adjustment operations and improving efficiency. Four subway vehicle height measuring devices of this solution are placed sequentially at four locations on the vehicle body and powered on. The four measuring devices automatically connect to a handheld terminal 1, i.e., a monitor, and automatically display the real-time height data of the four measurement points. It can simultaneously collect and display data from four measurement points in real time, and the device design dimensions meet the installation size requirements at the vehicle door sill.

[0033] By using the measuring device in this solution to check the vehicle height, the traditional method of using multiple people and measuring tapes can be replaced, making maintenance work more efficient and improving production efficiency. Traditional vehicle height adjustment work requires four people, while the measuring device in this solution is easy to operate, and only two people are needed to complete the vehicle height adjustment work, improving work efficiency, reducing maintenance personnel, saving operating costs for enterprises, and ensuring safety and reliability.

[0034] Specifically, the subway vehicle body height measuring device of this solution also includes a counterweight 4. The bottom of the housing 2 is horizontally provided with a first mounting area 231 and a second mounting area 241, located on both sides of the through slot 22. The first mounting area 231 is used to install the distance sensor 3. The through hole 26 is located within the first mounting area 231, and the second mounting area 241 is used to place the counterweight 4. The bottom of the housing 2 is designed according to the shape of the vehicle door sill, with the counterweight 4 and the distance sensor 3 located on either side of the sill. This ensures the overall center of gravity of the device is stable, allowing it to be securely placed on the sill and preventing the housing 2 from falling during measurement.

[0035] Specifically, the distance measurement system also includes a detection rod, which is used to be placed horizontally at the bottom of the vehicle. The distance sensor 3 is used to detect the vertical distance between the door sill and the detection rod. When the detection rod is placed at the bottom of the vehicle, it corresponds vertically to the position of the through hole 26.

[0036] Specifically, a first groove 23 and a second groove 24 are provided at intervals on the bottom surface inside the box body 2. The bottom of the first groove 23 forms the first mounting area 231, and the bottom of the second groove 24 forms the second mounting area 241.

[0037] Specifically, a protrusion 25 is provided on the bottom surface inside the box body 2. The protrusion 25 is located between the first groove 23 and the second groove 24, and the protrusion 25 corresponds to the bottom of the through groove 22.

[0038] Specifically, the first groove 23 has a first sidewall vertically arranged on the side near the protrusion 25, the second groove 24 has a second sidewall vertically arranged on the side near the protrusion 25, and the upper end of the protrusion 25 has a top surface 251 horizontally arranged. The longitudinal cross-section of the first mounting area 231, the first sidewall, the top surface 251, the second sidewall, and the second mounting area 241 connected in sequence is approximately Z-shaped.

[0039] Specifically, the first mounting area 231 and the second mounting area 241 are located on the same horizontal plane, and the vertical distance between the top surface 251 and the first mounting area 231 is not less than 15 mm.

[0040] The housing 2 of the subway vehicle body height measuring device in this solution is made of 1.5mm thick 304 stainless steel and is used for relative fixation between the sensor and the vehicle body. The bottom of the housing 2 is designed according to the shape of the vehicle door sill. The center of gravity of the housing 2 can be calculated according to the size of the installation position, and a counterweight 4 of corresponding weight is added to ensure that the measuring housing 2 is securely placed on the sill, preventing the measuring device from falling. The distance measurement system also includes a monitoring system electrically connected to the distance sensor 3. The monitoring system includes a distance measurement circuit 5, which is installed on the second installation area 241. The distance measurement circuit 5 can adopt a conventional circuit design. For example, the circuit board of the distance measurement circuit 5 includes modules such as an ESP32 minimum system circuit, a lithium battery protection circuit 51, a charge and discharge management circuit 52, a step-up and step-down voltage regulator circuit 53, and an infrared laser distance sensor 3. Among them, the lithium battery protection circuit 51 includes a battery 511 and a lithium battery protection chip 512. The battery 511 can be an 18650 lithium battery. The ESP32 minimum system circuit includes an ESP32WIFI ​​serial port module 54. The monitoring system's detection software is developed using a WPF lower-level desktop application in C#. The backend uses an IoT MQTT server for data link monitoring and management, and the interface is developed using XAML, a tag-based language. The software allows users to view real-time height measurements and the resulting graphs. It enables real-time measurement and display of vehicle height data, providing alerts for non-compliant points. This allows operators to monitor data during vehicle height adjustments, guiding them to quickly complete the adjustment process and improving efficiency. Once the software is running, all functions will operate automatically, awaiting automatic device connection. It is characterized by its simplicity and ease of use.

[0041] Other aspects of the subway vehicle body height measuring device described in this utility model are found in the prior art and will not be repeated here.

[0042] The above description is merely a preferred embodiment of the present utility model and is 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.

Claims

1. A device for measuring the height of a subway vehicle body, characterized in that: The device includes a handheld terminal and several monitoring modules electrically connected to the handheld terminal. The handheld terminal is equipped with a display. Each monitoring module includes a housing and a distance measurement system installed inside the housing. The bottom surface of the housing has a through slot with its opening facing downwards and both ends open, through slots that can be inserted into the upper part of a vehicle door sill. The top of the housing is equipped with a handle. The distance measurement system includes a distance sensor, which is used to measure the distance to be measured between the door sill and the bottom of the vehicle. The distance sensor is electrically connected to the display. The bottom of the box is also provided with a through hole connecting the inside of the box to the outside. The size of the through hole is smaller than the size of the ranging sensor. The ranging sensor is installed inside the box and above the through hole.

2. The subway vehicle body height measuring device according to claim 1, characterized in that: It also includes a counterweight. The bottom surface of the box is horizontally provided with a first mounting area and a second mounting area. The first mounting area and the second mounting area are respectively located on both sides of the through groove. The first mounting area is used to install the ranging sensor. The through hole is located in the first mounting area. The second mounting area is used to place the counterweight.

3. The subway vehicle body height measuring device according to claim 2, characterized in that: The distance measurement system also includes a detection rod, which is placed horizontally at the bottom of the vehicle, and the distance sensor is used to detect the vertical distance between the door sill and the detection rod.

4. The subway vehicle body height measuring device according to claim 3, characterized in that: The bottom surface inside the box is provided with a first groove and a second groove at intervals. The bottom of the first groove forms the first mounting area, and the bottom of the second groove forms the second mounting area.

5. The subway vehicle body height measuring device according to claim 4, characterized in that: The bottom surface inside the box is also provided with a protrusion, which is located between the first groove and the second groove, and the protrusion corresponds to the bottom of the through groove.

6. The subway vehicle body height measuring device according to claim 5, characterized in that: The first groove has a first sidewall vertically arranged on the side near the protrusion, the second groove has a second sidewall vertically arranged on the side near the protrusion, and the upper end of the protrusion has a top surface horizontally arranged. The first mounting area, the first sidewall, the top surface, the second sidewall, and the second mounting area are connected in sequence to form an approximate "Z" shape.

7. The subway vehicle body height measuring device according to claim 3, characterized in that: The first installation area and the second installation area are located on the same horizontal plane.

8. The subway vehicle body height measuring device according to claim 6, characterized in that: The vertical distance between the top surface and the first installation area is not less than 15 mm.

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