Aircraft hydraulic system flow sensor mounting joint

Abstract

The utility model belongs to the field of aviation, and discloses an airplane hydraulic system flow sensor mounting connector which comprises a connecting pipeline, pipeline connectors are arranged at the two ends of the connecting pipeline and connected with corresponding hydraulic guide pipes respectively, and a flow sensor is arranged on the upper portion of the connecting pipeline. The flow sensors extend into the connecting pipeline, the flow sensors can measure the flow of hydraulic oil, and in the process, the sealing performance test of the flow sensor mounting device and the sealing performance test of the hydraulic pipeline are completed at the same time. The problem that the sealing performance is poor due to the fact that the pipe is cut off can be effectively solved, the two pipeline connectors are arranged, and when the pipe connector is used, the pipe connector is connected with an external pipeline through the two pipeline connectors, disassembly is convenient, and repeated use can be achieved.

Description

Technical Field

[0001] The utility model belongs to the field of aviation, and in particular relates to a mounting joint for a flow sensor of an aircraft hydraulic system. Background Art

[0002] A sensor is a device that senses the information being measured and converts it into an electrical signal or other desired form of information output according to a specific pattern, thus meeting the requirements of information transmission, processing, storage, recording, and control. Flow sensors convert the flow rate of a hydraulic system into an electrical signal for transmission and processing. They are commonly used in aircraft hydraulic systems and are typically placed between two pipes.

[0003] However, the existing flow sensor installation method is too simple. Most of them are to cut the pipe, then install the flow sensor mounting bracket at the cut, and weld the two ends of the flow sensor mounting bracket to the openings of the two pipes. This method has poor sealing and is prone to hydraulic oil leakage. In addition, this method is not disassembled and cannot be reused. Summary of the Invention

[0004] The purpose of the utility model is to overcome the problems of hydraulic oil leakage and poor sealing caused by welding the flow sensor mounting support and the two ends of the incision during the existing flow sensor installation process, and to provide an aircraft hydraulic system flow sensor mounting joint.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] In the first aspect, the utility model provides an aircraft hydraulic system flow sensor mounting joint, including a connecting pipeline, with pipeline joints provided at both ends of the connecting pipeline, the two pipeline joints being respectively connected to corresponding hydraulic conduits, a flow sensor being provided on the upper part of the connecting pipeline, and the flow sensor extending into the connecting pipeline.

[0007] A further improvement of the present invention is that the pipeline joint includes a first mechanical interface and a second mechanical interface, and the first mechanical interface and the second mechanical interface are arranged opposite to each other.

[0008] A further improvement of the present invention is that the end face of the first mechanical interface is provided with a flange.

[0009] A further improvement of the present invention is that the first mechanical interface adopts an English non-flared external thread, an outer sleeve nut is provided at the end of the hydraulic conduit, and the first mechanical interface and the outer sleeve nut are butted and tightened.

[0010] A further improvement of the present invention is that an internal thread is provided in the second mechanical interface.

[0011] A further improvement of the present invention is that a sensor connector is provided on the connecting pipeline, and the flow sensor is fixed on the sensor connector.

[0012] A further improvement of the present invention is that the sensor joint adopts a conical surface fixing seat, and the flow sensor and the conical surface fixing seat are connected to form a seal.

[0013] A further improvement of the present invention is that the conical surface fixing seat adopts a 74° cone.

[0014] A further improvement of the present invention is that the sensor connector and the flow sensor are fixedly sealed by adopting threaded cooperation.

[0015] A further improvement of the present invention is that an external hexagonal boss is provided on the pipe joint.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The utility model includes a connecting pipeline, both ends of the connecting pipeline are provided with pipeline joints, the two pipeline joints are respectively connected to corresponding hydraulic conduits, a flow sensor is provided on the upper part of the connecting pipeline, the flow sensor extends into the connecting pipeline, and the flow sensor can measure the flow of hydraulic oil. During this process, the sealing test of the flow sensor installation device and the sealing test of the hydraulic pipeline are completed together. The utility model uses the flow sensor installation joint to make the remaining flow sensors form an integrated structure, which can effectively avoid the problem of poor sealing caused by pipe cutting, and the utility model is provided with two pipeline joints. When in use, it is connected to the external pipeline through the two pipeline interfaces, which is easy to disassemble and can be reused.

[0018] Furthermore, the conical surface between the connector of the present invention and the hydraulic sensor is sealed, so the installation structure of the hydraulic system flow sensor has good sealing performance.

[0019] Furthermore, after the connector of the present invention is sealed with the conical surface of the flow sensor, it is connected by a nut and an internal thread, so that the flow sensor of the hydraulic system can be disassembled and reused.

[0020] Furthermore, the two pipe joints of the present invention are respectively connected to the outer nut of the hydraulic pipe and tightened, and are connected in the form of nuts and internal threads, so that the hydraulic system flow sensor installation joint can be detachable and reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is the front view of the connector of the present utility model;

[0022] Figure 2 It is a structural diagram of the utility model;

[0023] Figure 3 This is a schematic diagram of the method of use of the utility model;

[0024] Explanation of the numbers in the figure: 1. Pipe connector; 2. First connector nut; 3. Flange; 4. First mechanical interface; 5. Second mechanical interface; 6. Hydraulic conduit; 7. Internal thread; 8. External hexagonal boss; 9. Flow sensor; 10. Outer sleeve nut; 11. Connecting pipe; 12. Sensor connector. DETAILED DESCRIPTION

[0025] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0027] 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 technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0028] In this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0029] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0030] It will be understood that when used in this specification and the appended claims, the terms “comprises” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0031] It should also be understood that the terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in this specification and the appended claims, the singular forms "a", "an" and "the" are intended to include plural forms unless the context clearly indicates otherwise.

[0032] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0033] The accompanying drawings illustrate various schematic diagrams of structures according to embodiments disclosed herein. These figures are not drawn to scale; for clarity, some details are exaggerated and some details may be omitted. The shapes, relative sizes, and positional relationships of the various regions and layers shown in the figures are merely exemplary and may deviate in practice due to manufacturing tolerances or technical limitations. Those skilled in the art may design regions / layers with different shapes, sizes, and relative positions as needed.

[0034] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0035] See also Figures 1 to 3A flow sensor installation joint for an aircraft hydraulic system includes a connecting pipe 11. Pipe joints 1 are provided at both ends of the connecting pipe 11. The two pipe joints 1 are respectively connected to corresponding hydraulic conduits 6. A flow sensor 9 is provided on the upper part of the connecting pipe 11, and the flow sensor 9 extends into the connecting pipe 11. The pipe joint 1 includes a first mechanical interface 4 and a second mechanical interface 5, and the first mechanical interface 4 and the second mechanical interface 5 are arranged opposite to each other. There is a flange 3 on the end face of the first mechanical interface 4. A sensor joint 12 is provided on the connecting pipe 11, and the flow sensor 9 is fixed on the sensor joint 12. The sensor joint 12 adopts a conical fixing seat, and the flow sensor 9 is connected to the conical fixing seat to form a seal. The internal thread of the sensor joint 12 cooperates with the external thread of the flow sensor 9 to fix and seal. An external hexagonal boss 8 is provided on the pipe joint 1.

[0036] Preferably, the first mechanical interface 4 adopts an English non-flared external thread, and an outer sleeve nut 10 is provided at the end of the hydraulic conduit 6. The first mechanical interface 4 is connected to the outer sleeve nut 10 and tightened.

[0037] Preferably, an internal thread 7 is provided in the second mechanical interface 5 .

[0038] Preferably, the conical surface fixing seat adopts a 74° cone.

[0039] After the aircraft hydraulic system flow sensor is installed, a continuous hydraulic pipeline is formed from left to right. The aircraft hydraulic oil enters the left hydraulic pipeline, passes through the first mechanical interface 4 of the pipeline connector 1 connected to the hydraulic pipeline, flows through the second mechanical interface 5, and then flows through the data acquisition end of the flow sensor 9 in the connecting pipeline 11, and exits the pipeline connector 1. As the aircraft hydraulic oil flows through this pipeline, the flow sensor 9 detects the hydraulic oil flow rate. During this process, the sealing test of the present invention and the sealing test of the hydraulic pipeline are completed simultaneously.

[0040] During use, a pipe connector 1 is connected to each end of the connecting pipe 11. These pipe connectors 1 are then connected to the hydraulic conduit 6, forming a complete hydraulic piping system. A flow sensor 9 is installed on the top of the connecting pipe 11 and secured by a sensor connector 12. The conical mounting seat of the sensor connector 12 mates with the flow sensor 9, forming a seal to prevent hydraulic oil leakage. The flow sensor 9 contacts the conical mounting seat of the sensor connector 12, forming a seal. The external threads of the flow sensor 9 mate with the internal threads of the sensor connector 12, further securing and sealing the sensor and preventing it from loosening or leaking during operation. The flow sensor 9 extends into the connecting pipe 11 to monitor the flow rate in the hydraulic system in real time. By sensing the flow of hydraulic oil, the flow sensor 9 transmits flow rate information to the hydraulic system's control unit or display device for real-time monitoring and adjustment of the hydraulic system's operating status. A first mechanical interface 4 and a second mechanical interface 5 are provided at opposite ends of the pipe connector 1, respectively, for connection to the hydraulic conduit 6. The end face of the first mechanical interface 4 has a flange 3, which provides a tight connection and seal with the hydraulic conduit 6. The pipe connector 1 is provided with an external hexagonal boss 8, which facilitates tool manipulation during installation and removal, improving installation efficiency and reliability. The threaded and conical sealing structure of the present utility model facilitates assembly and disassembly of the flow sensor 9, facilitating sensor replacement or maintenance when necessary. The provision of the external hexagonal boss 8 also facilitates the use of tools to tighten and remove the pipe connector 1, ensuring smooth maintenance of the system.

[0041] The utility model realizes the reliable installation and sealing of the flow sensor through the optimized structural design, and at the same time facilitates the installation and maintenance of the system, ensuring that the hydraulic system can operate safely and stably.

[0042] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and range of equivalents of the claims are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0043] In addition, it should be understood that although this specification describes the embodiments, not every embodiment contains only one independent technical solution. This description is for clarity only. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art. The above content is only for the purpose of illustrating the technical concept of the present utility model and cannot be used to limit the scope of protection of the present utility model. Any changes made based on the technical solution in accordance with the technical concept proposed by the present utility model shall fall within the scope of protection of the claims of the present utility model.

Claims

1. An aircraft hydraulic system flow sensor mounting joint, characterized in that: It comprises a connecting pipeline (11), both ends of the connecting pipeline (11) are provided with pipeline joints (1), the two pipeline joints (1) are respectively connected to corresponding hydraulic conduits (6), a flow sensor (9) is provided on the upper part of the connecting pipeline (11), and the flow sensor (9) extends into the connecting pipeline (11); A sensor connector (12) is provided on the connecting pipeline (11), and the flow sensor (9) is fixed on the sensor connector (12); The sensor joint (12) adopts a conical surface fixing seat, and the flow sensor (9) is connected to the conical surface fixing seat to form a seal; The cone fixing seat adopts a 74° cone; When the sensor connector (12) and the flow sensor (9) are threadedly matched, they are fixed and sealed.

2. The aircraft hydraulic system flow sensor mounting joint according to claim 1, characterized in that: The pipeline joint (1) comprises a first mechanical interface (4) and a second mechanical interface (5), wherein the first mechanical interface (4) and the second mechanical interface (5) are arranged facing each other.

3. The aircraft hydraulic system flow sensor mounting joint according to claim 2, characterized in that: The end surface of the first mechanical interface (4) is provided with a flange (3).

4. The aircraft hydraulic system flow sensor mounting joint according to claim 2, characterized in that: The first mechanical interface (4) adopts an English non-flared external thread, an outer sleeve nut (10) is provided at the end of the hydraulic conduit (6), and the first mechanical interface (4) and the outer sleeve nut (10) are butt-jointed and tightened.

5. The aircraft hydraulic system flow sensor mounting joint according to claim 2, characterized in that: An internal thread (7) is provided in the second mechanical interface (5).

6. The aircraft hydraulic system flow sensor mounting joint according to claim 1, characterized in that: An external hexagonal boss (8) is provided on the pipe joint (1).

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