Double-head conversion gas block and locomotive air pressure gauge test system

Abstract

The application relates to a double-head conversion gas block and a locomotive air pressure gauge test system. The double-head conversion gas block comprises a gas path distribution module and two test joint assembly components arranged side by side; the test joint assembly component comprises an upper interface, a lower interface and an adjusting piece, the adjusting piece is arranged between the upper interface and the lower interface, the upper interface is connected to the edge of the upper surface of the adjusting piece, the distance between the two upper interfaces can be adjusted by rotating the adjusting piece to adapt to different types of air pressure gauges; the gas path distribution module is used for distributing the inlet air to the test joint assembly component. Through the double test joint design with adjustable distance and the integrated gas path distribution system, the application realizes the rapid and synchronous test of various types of air pressure gauges, effectively improves the test efficiency and consistency, simplifies the operation process, reduces the equipment cost and maintenance difficulty, and has good applicability and safety.

Description

Technical Field

[0001] This application relates to the field of locomotive maintenance technology, and in particular to a dual-head conversion air block and locomotive air pressure gauge testing system. Background Technology

[0002] With the rapid development of my country's railway transportation industry, the safe operation of locomotives and rolling stock has received increasing attention. As a crucial monitoring instrument for key components such as the locomotive braking system, the accuracy and reliability of the air pressure gauge directly affect train safety. Therefore, rapid, accurate, and efficient testing of air pressure gauges is particularly important in the daily inspection and maintenance of locomotives. Against this backdrop, specialized air circuit conversion devices for air pressure gauge testing have emerged. These devices are characterized by providing a stable and controllable air source to simulate the actual air pressure environment during locomotive operation, thereby verifying the indication accuracy and working performance of the air pressure gauge.

[0003] In related technologies, a single-connector conversion air block is typically used to test each pressure gauge individually. During operation, an external air source needs to be connected to the air block, and different models of pressure gauges are manually connected and disconnected to complete the testing process. Furthermore, to achieve simultaneous testing of dual-needle pressure gauges or improve testing efficiency, sometimes two independent single-head air blocks are used in parallel, with air distribution via additional piping and tee fittings.

[0004] However, the aforementioned single-head testing method or simple parallel device has significant problems: First, the operation process is cumbersome and the testing efficiency is low, especially during batch testing; second, the use of multiple independent air blocks and auxiliary pipelines not only occupies a large amount of workspace, but also increases the risk of air leakage due to the increased number of connection points, resulting in poor test stability; third, the interface size of traditional air blocks is fixed, making it difficult to flexibly adapt to different models and installation spacings of dual-needle pressure gauges, resulting in poor versatility; in addition, the lack of an integrated air path distribution and pressure control mechanism makes it difficult to ensure the synchronization and consistency of air pressure at two test points, affecting the accuracy of the test results; finally, this method requires a large number of devices, resulting in high purchase and maintenance costs, and the overall system safety and energy efficiency also need to be improved. Utility Model Content

[0005] Therefore, it is necessary to provide a dual-head conversion air block and locomotive air pressure gauge testing system that is highly integrated, easy to operate, can perform synchronous tests, and is highly adaptable, in order to address the problems of existing air pressure gauge testing devices, such as cumbersome operation, low efficiency, poor adaptability, and difficulty in ensuring test consistency.

[0006] A dual-head gas conversion block, the dual-head gas conversion block comprising:

[0007] Gas distribution module, used to distribute gas;

[0008] Two test connector assemblies are arranged side by side on the gas distribution module. Each test connector assembly includes an upper interface, a lower interface, and an adjusting member. The adjusting member is located between the upper interface and the lower interface. The upper interface is connected to the edge of the upper surface of the adjusting member. The adjusting member is used to rotate and adjust the distance between the upper interfaces of the two test connector assemblies. The lower interface is connected to the gas distribution module.

[0009] In one embodiment, the adjusting member is a cylindrical structure.

[0010] In one embodiment, the sidewall of the adjusting member is provided with an anti-slip structure.

[0011] In one embodiment, the air distribution module is provided with a first air inlet, and the first air inlet is disposed on the air distribution module.

[0012] In one embodiment, the air distribution module is further provided with a second air inlet and a third air inlet.

[0013] In one embodiment, the gas distribution module has a gas distribution structure inside, which cooperates with the first air inlet, the second air inlet and the third air inlet to realize the input and distribution of the gas source.

[0014] In one embodiment, the gas distribution structure includes a main gas path and two bypasses, the main gas path being connected to the first air inlet, and the two bypasses being connected to the second air inlet and the third air inlet, respectively.

[0015] In one embodiment, pressure sensors are provided on both the main air path and the two bypass paths.

[0016] In one embodiment, control valves are provided on both the main gas path and the two bypass paths.

[0017] A locomotive air pressure gauge testing system includes the aforementioned dual-head conversion air block, an air source connected thereto, and at least one air pressure gauge.

[0018] The aforementioned dual-head conversion air block includes an air distribution module and two test connector assemblies arranged side-by-side. Each test connector assembly includes an upper interface, a lower interface, and an adjusting component. The adjusting component is positioned between the upper and lower interfaces, with its upper surface side connected to the upper interface. Rotating the adjusting component changes the distance between the two upper interfaces to accommodate different models of dual-needle barometers. The lower interface is connected to the air distribution module, which distributes the incoming air to the two test connectors. This dual-head conversion air block, through its adjustable-distance dual test connector design, enables rapid and synchronous testing of various barometer models, effectively improving testing efficiency and consistency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a dual-headed gas conversion block provided in an embodiment of this application.

[0020] Figure 2 This is a side view of a dual-headed conversion gas block provided in an embodiment of this application.

[0021] Figure 3 This is a top view of a dual-headed conversion air block provided in an embodiment of this application.

[0022] The reference numerals in the detailed embodiments are as follows:

[0023] 100. Dual-head conversion air block; 10. Test connector assembly; 20. Air distribution module;

[0024] 11. Upper interface; 12. Lower interface; 13. Adjustment component;

[0025] 131. Anti-slip structure;

[0026] 21. First air intake; 22. Second air intake; 23. Third air intake. Detailed Implementation

[0027] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0028] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0029] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this application, unless otherwise expressly 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 expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0033] See Figure 1-3 , Figure 1-3A schematic diagram of a dual-headed gas converter 100 according to an embodiment of this application is shown. The dual-headed gas converter 100 provided in this embodiment includes: a gas distribution module 20 and two test connector assemblies 10. The two test connector assemblies 10 are arranged side-by-side on the gas distribution module 20. Each test connector assembly 10 includes an upper interface 11, a lower interface 12, and an adjusting member 13. The adjusting member 13 is disposed between the upper interface 11 and the lower interface 12. The upper interface 11 is connected to the edge of the upper surface of the adjusting member 13. The adjusting member 13 is used to rotate and adjust the distance between the upper interfaces 11 of the two test connector assemblies 10. The lower interface 12 is connected to the gas distribution module 20.

[0034] In this application, the air distribution module 20 is used to efficiently distribute the incoming air to the test connector assembly 10, ensuring a stable supply of air. In the test connector assembly 10, the adjusting element 13 is located between the upper interface 11 and the lower interface 12. The upper interface 11 is connected to the edge of the upper surface of the adjusting element 13. Because the upper interface 11 is located at the edge of the upper surface of the adjusting element 13, rather than centrally located, the distance between the two upper interfaces 11 can be flexibly adjusted by rotating the adjusting element 13. This allows the dual-head conversion air block 100 to adapt to different models and installation sizes of pressure gauges, significantly improving the versatility and testing flexibility of the device. The lower interface 12 is connected to the air distribution module 20, ensuring the unobstructed and sealed airflow. The dual-head conversion air block 100 of this application enables simultaneous testing of two pressure gauges, greatly improving testing efficiency and reducing the number of operations and the labor intensity of personnel. Simultaneously, its highly integrated air distribution and distance adjustment mechanism effectively ensures the consistency of test conditions and improves the accuracy and reliability of test data. In addition, this gas block reduces the equipment footprint and maintenance costs, and has good engineering applicability and safety.

[0035] In one embodiment, the adjusting member 13 is a cylindrical structure. This cylindrical structure design not only facilitates processing and manufacturing, reducing production costs, but also allows operators to apply force for rotation, achieving smooth and precise spacing adjustment. The uniform circumferential surface of the cylindrical structure ensures uniform force distribution during rotational adjustment, avoiding jamming or wear caused by structural asymmetry, thereby improving the smoothness of adjustment.

[0036] In one embodiment, an anti-slip structure 131 is provided on the side wall of the adjusting member 13. This anti-slip structure 131 effectively enhances the friction when the operator manually rotates the adjusting member 13, preventing slippage due to wet, oily hands or wearing gloves, thus ensuring the accuracy and safety of the adjustment process. Furthermore, the anti-slip structure 131 also improves the convenience and efficiency of operation, reducing adjustment time.

[0037] According to some embodiments of this application, the anti-slip structure 131 can be in the form of common materials such as knurling, mesh texture, raised dots, or stripes. Preferably, the anti-slip structure 131 is knurled, as knurled structures are easy to process and have good wear resistance. The knurled structure increases surface roughness and the coefficient of friction by rolling intersecting or parallel serrated patterns on the sidewall surface that contacts the fingers, ensuring a stable and reliable grip even in oily, humid environments or when the operator is wearing gloves, thereby achieving precise and effortless rotational adjustment.

[0038] In one embodiment, the air distribution module 20 is provided with a first air inlet 21. This first air inlet 21 serves as a single air source input, simultaneously distributing airflow to both test connector assemblies 10 through an internally integrated air distribution structure. This allows a single air inlet to provide a stable and consistent air pressure supply to both pointer interfaces of the dual-needle barometer, ensuring complete synchronization of air pressure between the two test connectors and effectively avoiding test errors caused by asynchronous air sources. This highly integrated design not only simplifies external pipeline connections, significantly reduces the risk of leakage, and improves the system's sealing reliability and testing efficiency, but also ensures consistency in readings and responses between the two pointers of the dual-needle barometer, thereby greatly improving the accuracy and reliability of the test data.

[0039] In one embodiment, the gas distribution module 20 is further provided with a second air inlet 22 and a third air inlet 23. The second and third air inlets 22 and 23 serve as backup interfaces, greatly enhancing the device's functional expandability and adaptability to various operating conditions. When the first air inlet 21 malfunctions or requires multiple air source inputs, the backup interfaces can be activated at any time, supporting simultaneous connection to multiple external air sources or auxiliary devices to meet more complex testing needs without interrupting the existing testing process. This design not only improves the flexibility and efficiency of the device's use but also reserves ample expansion space for future functional upgrades or special testing scenarios, avoiding equipment modification or replacement due to insufficient interfaces, extending the device's service life, and reducing long-term operating costs.

[0040] In one embodiment, the air distribution module 20 has an internal air distribution structure that works in conjunction with the first air inlet 21, the second air inlet 22, and the third air inlet 23 to achieve the input and distribution of air. The air distribution structure includes a main air path and two bypass paths. The main air path is connected to the first air inlet 21, and the two bypass paths are connected to the second air inlet 22 and the third air inlet 23, respectively.

[0041] Specifically, the air distribution structure has a main air path that is directly connected to the first air inlet 21. This main air path branches into two symmetrical and independent branches within the module, which lead to the lower interfaces 12 of the two test connector assemblies 10, respectively. When compressed air enters from the first air inlet 21, it first achieves initial pressure stabilization through the main air path, and then is evenly distributed into the two branches to ensure that the air pressure and flow rate delivered to the two test connectors remain highly consistent.

[0042] Optionally, the two bypasses are connected to the second air inlet 22 and the third air inlet 23 respectively, and each bypass can be independently connected to the lower interface 12 of the corresponding test connector assembly 10. This design allows the second air inlet 22 and the third air inlet 23 to serve as independent air source input channels. When two different types or different test requirements of pressure gauges need to be tested simultaneously, the operator can connect two independent air sources through the second air inlet 22 and the third air inlet 23 respectively, and accurately deliver the air to the corresponding test connectors through the corresponding bypasses, achieving completely independent operation of the two test systems. This structure not only avoids mutual interference between different air paths, ensuring that each test connector receives a stable and unaffected air pressure supply, greatly improving the flexibility and applicability of the test, but also supports comparative test scenarios, enhancing the functionality and reliability of the equipment.

[0043] In one embodiment, pressure sensors are installed on the main gas path and both bypass paths. By integrating pressure sensors at key gas path nodes, the device can monitor and provide feedback on the pressure of the main gas path and each bypass path in real time, ensuring accurate and controllable gas pressure values. When an abnormal pressure is detected in any path, an alarm can be triggered promptly to avoid testing errors or equipment damage caused by unstable or deviating pressure.

[0044] In one embodiment, control valves are installed on the main gas path and two bypass paths. By configuring independent control valves at each critical gas path node, the device achieves precise control of each gas path, allowing operators to independently open, close, or adjust any gas path according to testing requirements. When an abnormality occurs in a certain test path, the corresponding control valve can be immediately shut off for isolation and repair without affecting the normal testing of the other path.

[0045] This application also provides a locomotive pressure gauge testing system, including a dual-head conversion air block 100, an air source connected thereto, and at least one pressure gauge. This system integrates traditionally dispersed testing components into a unified whole through the highly integrated dual-head conversion air block 100. It supports simultaneous testing of dual-needle pressure gauges or parallel testing of two single-needle pressure gauges with only a single air source input, significantly simplifying test pipeline connections and reducing the risk of air leakage and equipment footprint. Its unique adjustable spacing design and integrated air path distribution structure ensure flexible adaptation to different models and specifications of pressure gauges, and guarantee accurate synchronization and stable output of air pressure from both test connectors. This improves testing efficiency and accuracy while effectively reducing equipment purchase and maintenance costs, providing an efficient, reliable, and economical complete solution for the daily maintenance and batch testing of locomotive pressure gauges.

[0046] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A double ended changeover gas block, characterized by, The dual-head conversion gas block includes: Gas distribution module, used to distribute gas; Two test connector assemblies are arranged side by side on the gas distribution module. Each test connector assembly includes an upper interface, a lower interface, and an adjusting member. The adjusting member is located between the upper interface and the lower interface. The upper interface is connected to the edge of the upper surface of the adjusting member. The adjusting member is used to rotate and adjust the distance between the upper interfaces of the two test connector assemblies. The lower interface is connected to the gas distribution module.

2. The double-ended transition gas block of claim 1, wherein, The adjusting component has a cylindrical structure.

3. The double-ended transition gas block of claim 2, wherein, The side wall of the adjusting component is provided with an anti-slip structure.

4. The double-ended transition gas block of claim 1, wherein, The air distribution module is provided with a first air inlet.

5. The double-ended transition gas block of claim 4, wherein, The air distribution module is also equipped with a second air inlet and a third air inlet.

6. The double-ended transition gas block of claim 5, wherein, The gas distribution module has an internal gas distribution structure, which works in conjunction with the first air inlet, the second air inlet and the third air inlet to realize the input and distribution of gas source.

7. The double-ended transition gas block of claim 6, wherein, The gas distribution structure includes a main gas path and two bypass paths. The main gas path is connected to the first air inlet, and the two bypass paths are connected to the second air inlet and the third air inlet, respectively.

8. The double-ended transition gas block of claim 7, wherein, Pressure sensors are installed on both the main gas path and the two bypass paths.

9. The double-ended transition gas block of claim 7, wherein, Control valves are installed on both the main gas path and the two bypass paths.

10. A locomotive pressure gauge testing system characterized by, It includes a dual-headed conversion air block as described in any one of claims 1 to 9, and an air source and at least one pressure gauge connected thereto.

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