Passenger train steel structure section dimension measuring device

Abstract

The utility model provides a railway carriage steel structure section dimension measuring device comprising a first ruler rod which is provided with a graduated scale; the second ruler rod is parallel to the first ruler rod, and marked lines are arranged on the second ruler rod; and the connecting assembly is connected with the first ruler rod and the second ruler rod, so that the first ruler rod and the second ruler rod can relatively slide along the axis direction, and the sectional dimension of the passenger train steel structure can be adjusted and measured. Through the relative sliding structure of the first ruler rod and the second ruler rod and the accurate calibrated scale and marked lines, the purpose of rapidly and accurately measuring the diagonal difference and the vehicle width difference by a single person is achieved. Compared with a traditional measuring tape measuring method, the device has the advantages that the measuring efficiency and precision are remarkably improved, the operation difficulty and the safety risk are reduced, the universality and the flexibility of measurement are enhanced, and remarkable technical progress and industrial benefits are brought to the passenger train manufacturing and maintenance industry.

Description

Technical Field

[0001] The present application relates to the field of dimension measuring devices, and in particular to a device for measuring the cross-sectional dimensions of a railway passenger car steel structure. Background Art

[0002] During the manufacturing and maintenance of railway passenger cars, ensuring that the cross-sectional dimensions of the car body steel structure meet design requirements is crucial. Especially during new construction or major modifications, the reassembly of side walls or steel structures requires precise control of diagonal length and vehicle width to ensure structural stability and driving safety. However, traditional measurement methods have many shortcomings.

[0003] Currently, the most common measurement method is manual measurement using a tape measure. Measuring the diagonal difference typically requires two people: one person stands on a saddle, holding one end of the tape measure against the base of the side wall's upper beam, while the other person extends the tape measure to the intersection of the diagonal underframe beam and the side wall, reading the length of one diagonal. The two people then measure the other diagonal length of the same section in the same manner, calculating the difference between the two to determine the diagonal difference of the steel structure section. This method is not only inefficient but also requires frequent movement of the saddle, increasing the complexity and labor intensity of the operation.

[0004] Similarly, measuring the width of a vehicle requires two people: one person holds one end of the tape measure against the outer end face of the side wall column or the inner surface of the side wall panel, while the other person extends the tape measure to the opposite side and reads the value. To obtain the vehicle width difference, measurements must be taken at the top, middle, and bottom of the vehicle height, and the difference between the measurements at each position is calculated. This method also suffers from low efficiency and high labor intensity, especially when measuring the upper vehicle width, as both people need to stand on a stool, further increasing the difficulty and safety risks.

[0005] Furthermore, due to the varying degrees of tension in the tape measure, readings can vary significantly, resulting in poor measurement accuracy. This lack of accuracy is crucial in the manufacturing and maintenance of railway coaches, as it directly impacts their structural stability and driving safety. Utility Model Content

[0006] The purpose of this application is to provide a railway passenger car steel structure cross-sectional dimension measuring device, which aims to enable a single person to quickly and accurately measure the diagonal difference and vehicle width difference, while improving the measurement accuracy and stability.

[0007] In order to achieve the above objectives, this application provides the following technical solutions:

[0008] A device for measuring the cross-sectional dimensions of a railway passenger car steel structure comprises a first ruler rod provided with a graduated ruler; a second ruler rod arranged parallel to the first ruler rod and provided with a marking line; and a connecting assembly connecting the first ruler rod and the second ruler rod so that the first ruler rod and the second ruler rod can slide relative to each other along an axial direction to adjust and measure the cross-sectional dimensions of the railway passenger car steel structure.

[0009] In one embodiment, a first plug is provided at the end of the first ruler rod, and a second plug is provided at the other end of the second ruler rod away from the first plug.

[0010] In one embodiment, the cross-sections of the first plug and the second plug along the axial direction are tapered.

[0011] In one embodiment, a limit seat is further included, which is installed on the second ruler rod and is used to limit the reset position of the second ruler rod.

[0012] In one embodiment, the connecting assembly includes a sliding member and a fixed member, the upper part of the sliding member is fixed to the left end of the first ruler rod, the lower part of the sliding member is sleeved on the second ruler rod, the lower part of the fixed member is fixed to the right end of the second ruler rod, and the upper part of the fixed member is sleeved on the first ruler rod.

[0013] The beneficial effects of this application are:

[0014] This application proposes a device for measuring the cross-sectional dimensions of railway passenger car steel structures. This device, utilizing a relative sliding mechanism between first and second rods and equipped with precise scales and markings, enables a single person to quickly and accurately measure diagonal and width differences. Compared to traditional tape measure methods, this device significantly improves measurement efficiency and accuracy while reducing operational difficulty and safety risks, enhancing measurement versatility and flexibility. This device brings significant technological advancements and industrial benefits to the railway passenger car manufacturing and maintenance industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of a device for measuring the cross-sectional dimensions of a railway passenger car steel structure provided in one embodiment of the present application;

[0016] Figure 2 This is a schematic structural diagram of a device for measuring the cross-sectional dimensions of a railway passenger car steel structure provided by one embodiment of the present application after relative sliding between a first ruler and a second ruler;

[0017] Description of reference numerals:

[0018] 1. First ruler rod; 2. Second ruler rod; 3. Connecting assembly; 4. First jack; 5. Second jack; 6. Limit seat;

[0019] 11. Marking line; 21. Scale;

[0020] 31. Sliding part; 32. Fixed part; DETAILED DESCRIPTION

[0021] The terms used in the implementation section of this application are only used to explain the specific embodiments of this application and are not intended to limit this application. The implementation of the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0022] like Figure 1 and Figure 2 As shown, a device for measuring the cross-sectional dimensions of a railway passenger car steel structure according to this embodiment includes a first ruler 1, a second ruler 2, and a connecting assembly 3. A graduated ruler 21 is provided on the first ruler 1 to provide a reference during measurement. The second ruler 2 is arranged parallel to the first ruler 1 and is provided with markings 11 for accurately reading the measured value. The connecting assembly 3 connects the first ruler 1 and the second ruler 2, allowing the two rulers to slide relative to each other along the axis, thereby adjusting and measuring the cross-sectional dimensions of the railway passenger car steel structure.

[0023] like Figure 1 As shown, in this embodiment, a first plug 4 is provided at the end of the first ruler 1, and a second plug 5 is provided at the other end of the second ruler 2 away from the first plug 4. The cross-sections of the first plug 4 and the second plug 5 along the axial direction are conical, which is intended to reduce the area of ​​the end to reduce the error in the measurement process. The design of the conical plug reduces its contact area with the object to be measured (such as the steel structure of a railway passenger car), making it easier to achieve accurate contact point positioning. During the measurement process, the reduction in contact area means a smaller error range, because even if there is a slight offset or unevenness, the impact on the overall measurement result will be limited to a smaller range. When using a flat plug, the edge part may cause errors due to unevenness or wear. The design of the conical plug can effectively avoid this edge effect, because the measurement mainly relies on the precise contact of the cone tip.

[0024] like Figure 1 As shown, the first plug 4 and the second plug 5 are machined parts, and the first ruler rod and the second ruler rod are connected to the plugs by screws. When the plugs are worn, they can be quickly and conveniently replaced, thereby extending the service life of the measuring device and improving the accuracy of the measurement.

[0025] like Figure 1 As shown, this embodiment further includes a stopper 6. This stopper 6 is mounted on the second ruler 2 and is used to limit the reset position of the second ruler 2. During measurement, when the second ruler 2 slides to the desired position, the stopper 6 ensures that the second ruler 2 accurately returns to its initial position upon reset, thereby improving measurement stability and repeatability.

[0026] like Figure 1 As shown, this embodiment further refines the connecting component 3. The connecting component 3 includes a sliding member 31 and a fixing member 32. The upper part of the sliding member 31 is fixed to the left end of the first ruler rod 1, and the lower part of the sliding member 31 is sleeved on the second ruler rod 2, so that the first ruler rod 1 can slide along the axial direction of the second ruler rod 2. The lower part of the fixing member 32 is fixed to the right end of the second ruler rod 2, and the upper part of the fixing member 32 is sleeved on the first ruler rod 1, which is used to fix the position of the first ruler rod 1 to prevent it from shifting during the measurement process. The design of the sliding member 31 and the fixing member 32 not only ensures the accuracy of the measurement, but also improves the stability and durability of the measuring device.

[0027] In the description of the embodiments of this application, 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 may refer to a fixed connection, an indirect connection via an intermediate medium, internal communication between two components, or an interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on specific circumstances.

[0028] In the embodiments of the present application, any device or element referred to or implied must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "plurality" is two or more, unless otherwise specifically specified.

[0029] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the embodiments of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way are interchangeable under appropriate circumstances, so that the embodiments of the present application described herein, for example, can be implemented in orders other than those illustrated or described herein. In addition, the terms "may include" and "have" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or inherent to these processes, methods, products or apparatus.

[0030] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of the embodiments of this application, and are not intended to limit them. Although the embodiments of this application have been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they may modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, such modifications or replacements do not deviate from the essence of the corresponding technical solutions within the scope of the various embodiments of this application.

Claims

1. A device for measuring the cross-sectional dimensions of a railway passenger car steel structure, characterized by: include a first ruler rod, wherein a graduated ruler is provided on the first ruler rod; a second ruler rod, arranged parallel to the first ruler rod, and having a marking line arranged on the second ruler rod; A connecting assembly connects the first ruler rod and the second ruler rod so that the first ruler rod and the second ruler rod can slide relative to each other along the axis direction to adjust and measure the cross-sectional dimensions of the steel structure of the railway passenger car.

2. The railway passenger car steel structure cross-sectional dimension measuring device according to claim 1, characterized in that: A first plug is provided at the end of the first ruler rod, and a second plug is provided at the other end of the second ruler rod away from the first plug.

3. The railway passenger car steel structure cross-sectional dimension measuring device according to claim 2, characterized in that: The cross sections of the first plug and the second plug along the axial direction are tapered.

4. The railway passenger car steel structure cross-sectional dimension measuring device according to claim 1, characterized in that: It also includes a limit seat, which is installed on the second ruler rod and is used to limit the reset position of the second ruler rod.

5. The railway passenger car steel structure cross-sectional dimension measuring device according to claim 1, characterized in that: The connecting assembly includes a sliding member and a fixing member, the upper part of the sliding member is fixed to the left end of the first ruler rod, the lower part of the sliding member is sleeved on the second ruler rod, the lower part of the fixing member is fixed to the right end of the second ruler rod, and the upper part of the fixing member is sleeved on the first ruler rod.

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