Four-way connector for installing hydraulic hard tube sensor of airplane hydraulic system

Abstract

The utility model discloses a four-way joint for installing a hydraulic hard tube sensor of an airplane hydraulic system. The four-way joint comprises a base, an inner cavity is formed in the base, a first mounting support and a second mounting support are arranged on two opposite surfaces of the base respectively, a first port and a second port are formed in the other two opposite surfaces of the base respectively, and the first mounting support, the second mounting support, the first port and the second port are all communicated with the inner cavity; the first mounting support is provided with a third port, the second mounting support is provided with a fourth port, the third port is provided with metric external threads, and the fourth port is provided with metric internal threads; threads are arranged on the first port and the second port. According to the utility model, the pressure and temperature of the hydraulic system can be measured on the premise of not damaging the pipeline, the four-way structure is adopted, the four-way pressure sensor has the advantages of light weight, simple operation, simple structure, easy realization and low use and maintenance cost, and the pressure sensor and the temperature sensor can be detached and reused.

Description

Technical Field

[0001] The utility model belongs to the field of four-way joints and relates to a four-way joint for installing a hydraulic hard pipe sensor of an aircraft hydraulic system. Background Art

[0002] There are some common faults in the aircraft hydraulic system, such as hydraulic oil leakage, insufficient pressure, slow or no movement of the device, etc. For these problems, maintenance personnel need to follow the basic principles of troubleshooting, that is, determine the cause according to the phenomenon, troubleshoot in order, and implement appropriate repair measures, mainly based on the pressure sensors and temperature sensors connected to the aircraft hydraulic system, observe the problem phenomenon, and then troubleshoot the fault.

[0003] Currently, only mature pressure sensors and temperature sensors are available on the market, but there is no corresponding device to connect and fix the sensors to the hydraulic pipelines. In actual applications, engineers will weld the mounting brackets of the pressure sensors and temperature sensors to the hydraulic hard pipes of the hydraulic system, which will cause problems such as system pipeline damage. In addition, the mounting brackets welded by this method cannot be disassembled, which increases the weight of the aircraft. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art and provide a four-way joint for installing a hydraulic hard pipe sensor of an aircraft hydraulic system, which can measure the pressure and temperature of the hydraulic system without damaging the hydraulic hard pipe pipeline.

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

[0006] A four-way joint for installing a hydraulic hard pipe sensor of an aircraft hydraulic system, comprising a base;

[0007] An inner cavity is provided in the base, a first mounting support and a second mounting support are respectively provided on two opposite surfaces of the base, a first port and a second port are respectively provided on the other two opposite surfaces of the base, and the first mounting support, the second mounting support, the first port and the second port are all connected to the inner cavity;

[0008] The first mounting support and the second mounting support are both provided with threads;

[0009] The first port and the second port are both provided with British standard non-flared external threads.

[0010] Preferably, the first mounting support is provided with a third port, the second mounting support is provided with a fourth port, the third port is provided with a metric external thread, and the fourth port is provided with a metric internal thread.

[0011] Furthermore, a gasket is provided at the bottom of the metric external thread of the third port.

[0012] Furthermore, an O-type rubber sealing ring is provided at the top of the metric internal thread of the fourth port.

[0013] Preferably, an outer hexagonal boss is disposed on the first mounting support and the second mounting support.

[0014] Preferably, the first mounting support and the second mounting support are both welded to the base.

[0015] Furthermore, the welds between the first mounting support and the second mounting support and the base are level three welds.

[0016] Furthermore, the height of the weld angles of the welds between the first mounting support and the second mounting support and the base is 4 mm.

[0017] Preferably, connection interfaces are provided on the left and right opposite surfaces of the base, the two connection interfaces are connected to the inner cavity, and the bottom ends of the first port and the second port are respectively welded to the two connection interfaces.

[0018] Preferably, the base, the first mounting support and the second mounting support are all made of 06Cr19Ni10.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] The utility model can connect two hydraulic hard pipes to the two ends of the base respectively by arranging a first port and a second port with threads on two opposite surfaces of the base, and can realize the connection of the base with the pressure sensor and the temperature sensor by arranging a first mounting support and a second mounting support on the other two opposite surfaces of the base. The pressure sensing part of the pressure sensor and the temperature sensing part of the temperature sensor can be placed in the connecting pipeline inside the base. The utility model can measure the pressure and temperature of the hydraulic system without damaging the pipeline. The utility model adopts a four-way structural form, which has the advantages of light weight, simple operation, simple and easy structure, and low use and maintenance cost, and the pressure sensor and the temperature sensor can be disassembled and reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the four-way joint of the utility model;

[0022] Figure 2 This is a schematic diagram of the method of using the four-way connector of the utility model;

[0023] Figure 3 The three views of the four-way joint of the utility model are shown in FIG. 1 , wherein (a) is a front view, (b) is a side view, and (c) is a top view;

[0024] Among them, 1. base; 2. first mounting support; 3. second mounting support; 4. first port; 5. gasket; 6. second port; 7. third port; 8. pressure sensor; 9. fourth port; 10. O-type rubber sealing ring; 11. temperature sensor; 12. external hexagonal boss; 13. external hexagonal boss. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] In the description of the present utility model, 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" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs. The terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrally connected; they can be mechanically connected, electrically connected, or can communicate with each other; they can be directly connected, or indirectly connected through an intermediate medium, and can be internal connectivity between two elements or an interactive relationship between two elements. The term "and / or" used herein includes any and all combinations of one or more related listed items. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances. The terms used herein in the specification of the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model.

[0028] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0029] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0030] like Figure 1 and Figure 3 As shown, a four-way joint for installing a hydraulic hard pipe sensor of an aircraft hydraulic system according to the utility model is shown, which includes a base 1.

[0031] An inner cavity is provided in the base 1 , and connection interfaces are provided on the left and right opposite surfaces of the base 1 . The two connection interfaces are connected to the inner cavity to form a connecting pipeline, and the connection interfaces are integrally provided with the base 1 .

[0032] The first mounting support 2 and the second mounting support 3 are respectively arranged on the upper and lower opposite surfaces of the base 1, and the bottom ends of the first mounting support 2 and the second mounting support 3 are respectively welded to the upper and lower opposite surfaces of the base 1, and the first mounting support 2 and the second mounting support 3 are connected to the connecting pipe. Figure 2 As shown, the top ends of the first mounting support 2 and the second mounting support 3 are used to fix the pressure sensor 8 and the temperature sensor 11. The pressure sensing part of the pressure sensor 8 and the temperature sensing part of the temperature sensor 11 can be placed in the connecting pipeline between the two connecting interfaces. The pressure sensing part of the pressure sensor 8 and the temperature sensing part of the temperature sensor 11 are both flush with the oil in the inner cavity of the base 1.

[0033] The first port 4 and the second port 6 are respectively provided on the left and right sides of the base, the bottom ends of the first port 4 and the second port 6 are respectively sleeved on the two connection interfaces on the left and right sides, the first port 4 and the second port 6 are welded and connected to the two connection interfaces, the top ends of the first port 4 and the second port 6 both extend out of two connection interfaces, and the top ends of the first port 4 and the second port 6 are respectively connected to hydraulic pipes. The top ends of the first port 4 and the second port 6 are both provided with British non-flared external threads, so as to dock with the internal threads of the outer sleeve nuts of the two hydraulic pipes.

[0034] The first mounting support 2 is provided with a third port 7, and the second mounting support 3 is provided with a fourth port 9. The third port 7 is a metric external thread, and is used to connect a pressure sensor of model S-10HB / 12, which is provided with an internal thread interface. The third port 7 can be docked with and tightened with the internal thread interface of the pressure sensor 8; a gasket 5 is installed at the docking point between the pressure sensor 8 and the third port 7 to prevent leakage of hydraulic oil. The gasket 5 is specifically arranged at the bottom of the metric external thread of the third port 7. When the external thread of the pressure sensor 8 is tightened with the third port 7, the top of the internal thread interface of the pressure sensor 8 presses against the gasket 5 to form a seal.

[0035] The fourth port 9 is provided with a metric internal thread, which can be connected and tightened with the external thread interface of the temperature sensor 11 to fix the temperature sensor 11 in the fourth port 9; an O-type rubber sealing ring 10 is installed at the connection between the temperature sensor 11 and the fourth port 9 to prevent leakage of hydraulic oil. The O-type rubber sealing ring 10 is specifically arranged at the top of the metric internal thread of the fourth port 9. When the external thread of the temperature sensor 11 is tightened with the fourth port 9, the bottom of the external thread interface of the temperature sensor 11 presses against the gasket 5 to form a seal.

[0036] The connection between the third port 7 of the first mounting support 2 and the pressure sensor 8 is coated with thread glue, and the connection between the fourth port 9 of the second mounting support 3 and the temperature sensor 11 is coated with thread glue. The thread glue can prevent loosening.

[0037] In another embodiment of the present application, an outer hexagonal boss 12 is provided on the first mounting support 2 and the second mounting support 3 to facilitate connection and fixation.

[0038] In another embodiment of the present application, the base 1, the first mounting support 2 and the second mounting support 3 are all made of 06Cr19Ni10 resistant to phosphate-based hydraulic oil, and are welded into an assembly. The weld is a third-level weld, the weld angle height is 4 mm, and the weld is smooth, free of bubbles and slag inclusions.

[0039] In another embodiment of the present application, when a four-way joint is used, the hydraulic hard pipe is threadedly connected to the first port 4 of the base 1, and the other hydraulic hard pipe is threadedly connected to the second port 6 of the base 1. The pressure sensor 8 is connected and tightened to the third port 7 of the first mounting support 2, and the temperature sensor is connected and tightened to the fourth port 9 of the second mounting joint 3. Tightening is achieved by two valve wrenches. The valve wrench in the left hand is fixed on the outer hexagonal boss 12 of the mounting support, and the valve wrench in the right hand is fixed on the outer hexagonal boss of the sensor, and the two hands apply force in opposite directions. Before tightening, thread glue needs to be applied to effectively prevent loosening.

[0040] In addition, the pressure sensing part of the pressure sensor 8 and the temperature sensing part of the temperature sensor 11 are flush with the oil in the connecting pipeline. After the pressure sensor 8 and the temperature sensor 11 are installed, the sealing test and the sealing test of the hydraulic pipeline are completed together.

[0041] The oil is fed into the first port 4 and out of the second port 6 through the hydraulic hard pipe. The pressure sensor 8 and the temperature sensor 11 continuously collect the pressure and temperature indicators of the oil in the main pipeline.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] It should be understood that the above description is for illustration and not for limitation. Many embodiments and many applications beyond the examples provided will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of the present teachings should not be determined with reference to the above description, but rather with reference to the foregoing claims and the full scope of equivalents to which such claims are entitled. For the purpose of comprehensiveness, all articles and references, including disclosures of patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the foregoing claims is not intended to be a waiver of the subject matter, nor should it be considered that the applicant has not considered the subject matter as part of the disclosed utility model subject matter.

Claims

1. A four-way joint for installing a hydraulic hard pipe sensor in an aircraft hydraulic system, characterized in that: comprising a base (1); An inner cavity is provided in the base (1); a first mounting support (2) and a second mounting support (3) are respectively provided on two opposite surfaces of the base (1); a first port (4) and a second port (6) are respectively provided on the other two opposite surfaces of the base (1); the first mounting support (2), the second mounting support (3), the first port (4) and the second port (6) are all in communication with the inner cavity; The first mounting support (2) and the second mounting support (3) are both provided with threads; the first port (4) and the second port (6) are both provided with British standard non-flared external threads.

2. The aircraft hydraulic system hydraulic hard pipe sensor installation four-way joint according to claim 1, characterized in that: The first mounting support (2) is provided with a third port (7), the second mounting support (3) is provided with a fourth port (9), the third port (7) is provided with a metric external thread, and the fourth port (9) is provided with a metric internal thread.

3. The aircraft hydraulic system hydraulic hard pipe sensor installation four-way joint according to claim 2, characterized in that: A gasket (5) is provided at the bottom of the metric external thread of the third port (7).

4. The aircraft hydraulic system hydraulic hard pipe sensor installation four-way joint according to claim 2, characterized in that: An O-type rubber sealing ring (10) is provided at the top of the metric internal thread of the fourth port (9).

5. The aircraft hydraulic system hydraulic hard pipe sensor installation four-way joint according to claim 1, characterized in that: An outer hexagonal boss (12) is provided on both the first mounting support (2) and the second mounting support (3).

6. The aircraft hydraulic system hydraulic hard pipe sensor installation four-way joint according to claim 1, characterized in that: The first mounting support (2) and the second mounting support (3) are both welded to the base (1).

7. The aircraft hydraulic system hydraulic hard pipe sensor installation four-way joint according to claim 6, characterized in that: The welds between the first mounting support (2) and the second mounting support (3) and the base (1) are third-level welds.

8. The aircraft hydraulic system hydraulic hard pipe sensor installation four-way joint according to claim 6, characterized in that: The height of the weld angle between the first mounting support (2) and the second mounting support (3) and the base (1) is 4 mm.

9. The aircraft hydraulic system hydraulic hard pipe sensor installation four-way joint according to claim 1, characterized in that: Connection interfaces are provided on the left and right opposite surfaces of the base (1), the two connection interfaces are connected to the inner cavity, and the bottom ends of the first port (4) and the second port (6) are respectively welded to the two connection interfaces.

10. The aircraft hydraulic system hydraulic hard pipe sensor installation four-way joint according to claim 1, characterized in that: The base (1), the first mounting support (2) and the second mounting support (3) are all made of 06Cr19Ni10.

Images