Multifunctional vehicle pipeline pressure maintaining system

Abstract

The utility model discloses a multifunctional vehicle pipeline pressure maintaining system which comprises an air inlet branch, an air outlet branch and a pressure maintaining pipeline. The pipeline pressure maintaining branch is connected with the air inlet branch and comprises a control unit, a pressure sensor and an air outlet which are connected with one another; the number of the pipeline pressure maintaining branches is multiple, and the multiple pipeline pressure maintaining branches are connected in parallel. The multiple pipeline pressure maintaining branches are connected in parallel, multi-path synchronous detection is supported, and manual dependence is reduced; each branch is provided with an independent control unit and an independent pressure sensor, accurate branch control is achieved, even if a certain branch breaks down, other branches can still work normally, and reliability and stability of the system are guaranteed. And each pipeline pressure maintaining branch adopts a unified modular design, so that the assembly process is simplified, and maintenance and expansion are facilitated.

Description

Technical Field

[0001] This application relates to the field of vehicle pipeline testing technology, specifically to a multifunctional vehicle pipeline pressure maintaining system. Background Technology

[0002] Traditional vehicle piping pressure holding systems have certain limitations in their design. Their single-function nature means they can only support specific tasks such as bogie pressure holding or single-pipe pressure holding. This necessitates frequent changes of different equipment to meet diverse needs during testing, significantly reducing work efficiency. Specifically, this is reflected in the following aspects:

[0003] First, it is highly dependent on manual labor. During the testing process, staff need to manually record pressure data. This method is not only inefficient, but also prone to errors or inaccuracies in data recording due to human factors, affecting the reliability of the test results.

[0004] Secondly, the structure is fragmented. The pressure-holding fixture and data recording equipment are separate, lacking integrated design. This makes the operation process complex, requiring cumbersome switching and coordination between different devices, and is also extremely inconvenient in terms of equipment storage and management, easily leading to the loss or damage of equipment parts.

[0005] Third, there is insufficient redundancy. The branch control unit lacks independent adjustment capabilities and cannot flexibly switch between different testing tasks. At the same time, the lack of an emergency backup channel means that the entire testing system may face paralysis when critical components fail, which greatly affects the continuity and reliability of testing work.

[0006] Fourth, it has poor scalability. Existing equipment is difficult to adapt to the needs of multi-channel synchronous detection and cannot meet the requirements of efficient operation. With the development of detection technology and the increasing complexity of detection tasks, this deficiency in scalability is becoming more and more prominent.

[0007] In summary, traditional vehicle pipeline pressure-maintaining devices have significant shortcomings in terms of functional design, structural layout, reliability assurance, and expandability, making it difficult to meet the needs of efficient, accurate, and reliable testing operations. Utility Model Content

[0008] In view of this, this application provides a multifunctional vehicle pipeline pressure-maintaining system, comprising:

[0009] An air intake branch, wherein the air intake branch is provided with an air intake port;

[0010] A pipeline pressure-maintaining branch is connected to the air intake branch and includes a connected control unit, a pressure sensor, and an air outlet.

[0011] The pipeline pressure-maintaining branch is provided in multiple ways, and the multiple pipeline pressure-maintaining branches are connected in parallel.

[0012] Furthermore, the pipeline pressure-holding branch is provided with four branches, including a first pipeline pressure-holding branch, a second pipeline pressure-holding branch, a third pipeline pressure-holding branch, and a fourth pipeline pressure-holding branch.

[0013] Furthermore, the intake branch is equipped with an access pressure gauge to ensure that the intake pressure is greater than the access pressure so that the air enters the first pipeline pressure holding branch and the second, third and fourth pipeline pressure holding branches connected in parallel with it.

[0014] According to a preferred embodiment, the multi-functional vehicle pipeline pressure-maintaining system further includes a fifth pipeline pressure-maintaining branch, which is equipped with an emergency shut-off valve.

[0015] Furthermore, the intake branch and the first pipeline pressure-holding branch are connected via a tee connector.

[0016] The control unit, pressure sensor, and air outlet are connected via a T-junction.

[0017] Multiple pressure-maintaining branches of the aforementioned pipelines are connected in parallel via tee interfaces.

[0018] Furthermore, the control unit includes:

[0019] A ball valve, used for opening and closing the pressure-holding branch of the pipeline;

[0020] A pressure regulating valve, used to control the pressure of the gas in the pressure-maintaining branch of the pipeline;

[0021] A shut-off valve, used to quickly disconnect the pressure-holding branch of the pipeline.

[0022] According to a preferred embodiment, the shut-off valve is located at the end of the pressure-holding branch of the pipeline, near the air outlet.

[0023] According to a preferred embodiment, the pressure sensor has a built-in data logger for real-time data storage and export.

[0024] Furthermore, the data export supports a USB interface.

[0025] According to a preferred embodiment, the air intake branch and multiple pipeline pressure-holding branches are integrated into a movable metal cabinet. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the components of a multifunctional vehicle pipeline pressure-maintaining system according to this application;

[0027] Figure 2 yes Figure 1 A schematic diagram of the metal cabinet integrating the multi-functional vehicle pipeline pressure-maintaining system.

[0028] Explanation of reference numerals in the attached diagram: 1-Inlet, 2-Outlet, 3-Observation pressure gauge, 4-Operation button corresponding to the control unit, 5-Operation button corresponding to the intake branch, 6-Inlet pressure gauge, 7-Roller. Detailed Implementation

[0029] Traditional vehicle piping pressure holding systems have certain limitations in their design. Their single-function nature means they can only support specific tasks such as bogie pressure holding or single-pipe pressure holding. This necessitates frequent changes of different equipment to meet diverse needs during testing, significantly reducing work efficiency. Specifically, this is reflected in the following aspects:

[0030] First, it is highly dependent on manual labor. During the testing process, staff need to manually record pressure data. This method is not only inefficient, but also prone to errors or inaccuracies in data recording due to human factors, affecting the reliability of the test results.

[0031] Secondly, the structure is fragmented. The pressure-holding fixture and data recording equipment are separate, lacking integrated design. This makes the operation process complex, requiring cumbersome switching and coordination between different devices, and is also extremely inconvenient in terms of equipment storage and management, easily leading to the loss or damage of equipment parts.

[0032] Third, there is insufficient redundancy. The branch control unit lacks independent adjustment capabilities and cannot flexibly switch between different testing tasks. At the same time, the lack of an emergency backup channel means that the entire testing system may face paralysis when critical components fail, which greatly affects the continuity and reliability of testing work.

[0033] Fourth, it has poor scalability. Existing equipment is difficult to adapt to the needs of multi-channel synchronous detection and cannot meet the requirements of efficient operation. With the development of detection technology and the increasing complexity of detection tasks, this deficiency in scalability is becoming more and more prominent.

[0034] In summary, traditional vehicle pipeline pressure-maintaining devices have significant shortcomings in terms of functional design, structural layout, reliability assurance, and expandability, making it difficult to meet the needs of efficient, accurate, and reliable testing operations.

[0035] In view of this, this application provides a multifunctional vehicle pipeline pressure-maintaining system. To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the various embodiments of this application will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been presented in the various embodiments of this application to enable readers to better understand this application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solutions claimed in this application can be implemented.

[0036] In the following description, certain specific details are set forth for the purpose of illustrating various disclosed embodiments in order to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the art will recognize that embodiments may be practiced without one or more of these specific details. In other instances, well-known apparatuses, structures, and techniques associated with this application may not have been shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

[0037] Unless the context requires otherwise, throughout the specification and claims, the word “comprising” and its variations, such as “including” and “having”, shall be understood to have an open, inclusive meaning, that is, to be interpreted as “including, but not limited to”.

[0038] The embodiments of this application will be described in detail below with reference to the accompanying drawings to provide a clearer understanding of the purpose, features, and advantages of this application. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of this application, but are merely for illustrating the essential spirit of the technical solution of this application.

[0039] Throughout this specification, references to "an embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Therefore, the appearance of "in an embodiment" or "an embodiment" in various places throughout the specification does not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic may be combined in any manner in one or more embodiments.

[0040] Specifically, such as Figure 1 As shown, in one embodiment, this application discloses a multifunctional vehicle pipeline pressure-maintaining system, the main structure of which includes an intake branch and a pipeline pressure-maintaining branch. The intake branch is provided with an air inlet for connecting to an external air source. Multiple pipeline pressure-maintaining branches are provided and connected to the intake branch, each pipeline pressure-maintaining branch including a control unit, a pressure sensor and an air outlet.

[0041] The control unit is responsible for regulating and controlling the flow and pressure of the gas. The pressure sensor monitors the pressure in the pipeline in real time and transmits the data to the data logger. The outlet is connected to the pressure-holding device being monitored. The system has multiple pressure-holding branches connected in parallel, sharing the gas supply from the same inlet branch, enabling simultaneous multi-channel monitoring.

[0042] The complete pressure-holding process is as follows: an external air source is connected through the air inlet of the air intake branch; one or more pressure-holding branches are connected to the pressure-holding device being tested; the pressure value is viewed through a pressure sensor; the pressure is then adjusted to the required pressure value using the control unit; the external air source is then turned off; and it is determined whether the pressure drop range meets the requirements within a certain period of time. This method can be applied to single-vehicle pressure holding, brake line pressure holding, and parking brake lines.

[0043] This application achieves a multi-functional integrated design by connecting multiple pipeline pressure-holding branches in parallel, supporting multi-channel synchronous testing, significantly improving testing efficiency and reducing reliance on manual labor. Each branch is equipped with an independent control unit and pressure monitoring equipment, enabling precise branch control. Even if one branch fails, the others can still operate normally, ensuring the reliability and stability of the system. Each pipeline pressure-holding branch adopts a unified modular design, simplifying the assembly process and facilitating maintenance and expansion. The number of pipeline pressure-holding branches can be flexibly increased or decreased according to actual needs to adapt to different testing scenarios.

[0044] Furthermore, the control unit includes:

[0045] The ball valve enables rapid opening and closing, is easy and quick to operate, and can cut off or connect the gas path in a short time, facilitating rapid response to detection needs;

[0046] The pressure regulating valve is used to control the pressure of the gas in the pressure-holding branch of the pipeline. It has a wide adjustment range, can adapt to the pressure-holding test requirements of different vehicle pipelines, meet the test tasks under various pressure conditions, can maintain stable adjustment performance, and is not affected by environmental temperature, humidity and other factors, ensuring the continuous normal operation of the system.

[0047] A shut-off valve is used to quickly cut off the pressure-holding branch of the pipeline, effectively preventing equipment damage or safety accidents caused by excessive pressure or other abnormal conditions.

[0048] Furthermore, the shut-off valve is located at the end of the pressure-holding branch of the pipeline, close to the air outlet, in order to minimize the impact on the pressure-holding device under test in an emergency.

[0049] Furthermore, the pressure sensor has a built-in data logger for real-time data storage and export. The data export supports a USB interface, which facilitates convenient operation.

[0050] Reference Figure 1 The specific components of the intake branch and one pipeline pressure-holding branch are given:

[0051] Intake branch: The intake port, ball valve, three-way connector, and intake pressure gauge are connected in sequence.

[0052] Pressure-maintaining branch pipeline: connected in sequence as follows: tee port (connected to the inlet branch), ball valve, pressure regulating valve, tee port, observation pressure gauge, shut-off valve (connected to the tee port), pressure sensor (connected to the shut-off valve), and outlet.

[0053] Furthermore, the pipeline pressure-holding branch is provided with four branches, including a first pipeline pressure-holding branch, a second pipeline pressure-holding branch, a third pipeline pressure-holding branch, and a fourth pipeline pressure-holding branch. The air intake branch is first connected to the first pipeline pressure-holding branch and indirectly connected to other parallel pipeline pressure-holding branches.

[0054] By setting up four parallel pipeline pressure-maintaining branches, a multi-functional integrated design is achieved, which is sufficient to meet most application scenarios, supports four-way synchronous detection, and significantly improves detection efficiency.

[0055] Furthermore, the intake branch is equipped with an access pressure gauge to ensure that the intake pressure is greater than the access pressure so that the air enters the first pipeline pressure holding branch and the second, third and fourth pipeline pressure holding branches connected in parallel with it.

[0056] Maintaining an intake pressure higher than the allowable pressure ensures stable gas pressure entering the system, providing suitable operating conditions for the pressure regulating valves in each branch, thus ensuring that each branch reaches the set detection pressure. If the intake pressure is too low, it will cause large system pressure fluctuations, affecting the adjustment accuracy of the pressure regulating valves and the measurement accuracy of the pressure sensors, thereby impacting the reliability of the entire detection process. Therefore, an allowable pressure gauge is installed in the intake branch to ensure operational stability in advance.

[0057] Furthermore, the multi-functional vehicle pipeline pressure-maintaining system also includes a fifth pipeline pressure-maintaining branch, which is equipped with an emergency shut-off valve.

[0058] The fifth pipeline pressure-holding branch is connected in parallel with the other pipeline pressure-holding branches, but it is only equipped with an emergency shut-off valve to prevent accidents caused by the inability of the first, second, third, and fourth pipeline pressure-holding branches to release pressure. As an emergency backup measure, it further enhances the safety of the system.

[0059] Furthermore, the intake branch and the first pipeline pressure-holding branch are connected via a T-junction, the control unit, the pressure sensor, and the air outlet are connected via a T-junction, and multiple pipeline pressure-holding branches are connected in parallel via a T-junction.

[0060] The three-way interface has a simple and compact structure, enabling multiple connections within a limited space and reducing the overall system footprint. It is also easy to integrate with control units and pressure sensors to form a more compact and efficient pressure-maintaining system.

[0061] The following embodiment provides a more specific pressure-holding process: An external air source is connected to the inflation port. After passing through a ball valve, the pressure is read using an access pressure gauge to ensure that the pressure is greater than the preset access pressure M. Subsequently, the first, second, and third pressure-holding branches of the pipeline are connected to the single vehicle, single pipe, and bogie, respectively. The pressure gauge is checked using a pressure regulating valve and adjusted to the required pressure value. For single vehicle pressure holding, when the pressure value observed on the pressure gauge of the first pipeline pressure-holding branch reaches M1 or higher, the air source is cut off, and it is determined whether the pressure drop within time T1 is greater than P1. For single pipe pressure holding, when the pressure value observed on the pressure gauge of the second pipeline pressure-holding branch reaches M2 or higher, the air source is cut off, and it is determined whether the pressure drop within time T2 is greater than P2. For bogie pressure holding, when the pressure value observed on the pressure gauge of the third pipeline pressure-holding branch reaches M3 or higher, the air source is cut off, and it is determined whether the pressure drop within time T3 is greater than P3.

[0062] In addition, each channel is connected to an external pressure sensor. After setting the time, the pressure change during this time can be automatically recorded. The pressure record can be exported via USB. After the pressure holding time ends, the pressure can be released and cut off by the corresponding shut-off valve before the next test.

[0063] In a preferred embodiment, such as Figure 2 As shown, the air intake branch and multiple pressure-holding branch lines are integrated into a movable metal cabinet. Correspondingly, the metal cabinet is equipped with an air inlet 1, an air outlet 2, a pressure gauge 3, operating buttons 4 corresponding to the control unit, operating buttons 5 corresponding to the air intake branch, and an access pressure gauge 6. The air inlet 1 and air outlet 2 are located on two opposite sides, and the bottom of the metal cabinet is also equipped with casters 7 for easy movement.

[0064] The foregoing has provided a detailed description of a multifunctional vehicle pipeline pressure-maintaining system according to the embodiments of this application. The various embodiments in the specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

[0065] Those skilled in the art will further recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

Claims

1. A multifunctional vehicle pipeline pressure-maintaining system, characterized in that, include: An air intake branch, wherein the air intake branch is provided with an air intake port; A pipeline pressure-maintaining branch is connected to the air intake branch and includes a connected control unit, a pressure sensor, and an air outlet. The pipeline pressure-maintaining branch is provided in multiple ways, and the multiple pipeline pressure-maintaining branches are connected in parallel.

2. The multifunctional vehicle pipeline pressure-maintaining system according to claim 1, characterized in that, The pipeline pressure-holding branch has four branches, including the first pipeline pressure-holding branch, the second pipeline pressure-holding branch, the third pipeline pressure-holding branch, and the fourth pipeline pressure-holding branch.

3. The multifunctional vehicle pipeline pressure-maintaining system according to claim 2, characterized in that, The intake branch is equipped with an access pressure gauge to ensure that the intake pressure is greater than the access pressure so that the air enters the first pipeline pressure holding branch and the second, third and fourth pipeline pressure holding branches connected in parallel with it.

4. The multifunctional vehicle pipeline pressure-maintaining system according to claim 3, characterized in that, It also includes a fifth pipeline pressure-maintaining branch, which is equipped with an emergency shut-off valve.

5. The multifunctional vehicle pipeline pressure-maintaining system according to claim 4, characterized in that, The intake branch and the first pipeline pressure-holding branch are connected via a tee connector. The control unit, pressure sensor, and air outlet are connected via a T-junction. Multiple pressure-maintaining branches of the aforementioned pipelines are connected in parallel via tee interfaces.

6. The multifunctional vehicle pipeline pressure-maintaining system according to claim 5, characterized in that, The control unit includes: A ball valve, used for opening and closing the pressure-holding branch of the pipeline; A pressure regulating valve, used to control the pressure of the gas in the pressure-maintaining branch of the pipeline; A shut-off valve, used to quickly disconnect the pressure-holding branch of the pipeline.

7. The multifunctional vehicle pipeline pressure-maintaining system according to claim 6, characterized in that, The shut-off valve is located at the end of the pressure-holding branch of the pipeline, near the air outlet.

8. The multifunctional vehicle pipeline pressure-maintaining system according to claim 7, characterized in that, The pressure sensor has a built-in data logger for real-time data storage and export.

9. The multifunctional vehicle pipeline pressure-maintaining system according to claim 8, characterized in that, The data can be exported via USB interface.

10. The multifunctional vehicle pipeline pressure-maintaining system according to claim 1, characterized in that, The intake branch and multiple pipeline pressure-holding branches are integrated into a movable metal cabinet.

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