Airplane control valve seat test tool

Abstract

The utility model discloses an airplane control valve seat test tool, which comprises a base and a top seat, a first valve seat matching hole and a first round hole are arranged in the base, a second valve seat matching hole and a second round hole are arranged in the top seat, and an airplane control valve seat is arranged between the base and the top seat. The base, the aircraft control valve seat and the top seat are mutually connected and fixed through fasteners. According to the airplane control valve seat test tool provided by the utility model, independent test of the valve seat can be realized, and failure of integral function test of the valve caused by the problem of the valve seat is effectively avoided, so that the assembly efficiency and quality of an airplane four-inch control valve are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valve seat testing tooling, in particular to a valve seat testing tooling for an aircraft control valve. Background Art

[0002] The aircraft control valve is one of the indispensable and important components in the fuselage of a modern aircraft. It is responsible for regulating and controlling the flow of air to meet the air flow requirements of various systems and components of the aircraft. As a key component in the air source system, the control valve can accurately control the direction and flow of air flow to ensure that the air source system can work normally according to the design requirements.

[0003] In the current testing method, the performance of the valve is usually tested by performing a functional test after the valve is fully assembled. The problem with this method is that if a leakage problem is found in the valve seat during the functional test, the entire control valve assembly needs to be disassembled to replace or repair the valve seat. This not only increases the complexity and time cost of the maintenance work, but may also cause unnecessary damage to other components of the control valve. Therefore, in order to address this problem, it is particularly important to develop a tooling that can test the valve seat alone. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the current aircraft control valve seat test, the utility model provides an aircraft control valve seat test tool, which is easy to operate, simple in structure, high in safety and high in test efficiency.

[0005] In order to achieve the above object, the embodiment of the utility model adopts the following technical solution:

[0006] A test tool for an aircraft control valve seat comprises a base and a top seat, wherein the base comprises a first valve seat matching hole and a first circular hole, and the first valve seat matching hole and the first circular hole are communicated with each other; the top seat comprises a second valve seat matching hole and a second circular hole, and the second valve seat matching hole and the second circular hole are communicated with each other; the aircraft control valve seat is placed between the base and the top seat, and the base, the aircraft control valve seat and the top seat are connected and fixed to each other by fasteners.

[0007] According to one aspect of the utility model, the base is in a cubic structure, and threaded holes are provided at four corners of the matching surface of the base with the top seat.

[0008] According to one aspect of the utility model, the top seat is provided with through holes at four corners of the mating surface with the base, the through holes correspond to the threaded holes, and the fasteners pass through the through holes and the threaded holes to connect and fix the top seat and the base.

[0009] According to one aspect of the utility model, the first circular hole is arranged on the side of the base, a thread is arranged in the first circular hole, and the first circular hole is connected to the air supply end.

[0010] According to one aspect of the utility model, the second valve seat matching hole is arranged inside the top seat, the second circular hole is arranged on the top of the top seat, a thread is arranged in the second circular hole, and the second circular hole is connected to the air outlet.

[0011] According to one aspect of the utility model, the top seat and the base seat are both made of aluminum alloy.

[0012] According to one aspect of the present invention, the fastener is a screw.

[0013] Advantages of the implementation of the utility model: The utility model is provided with a base and a top seat, wherein the base includes a first valve seat matching hole and a first circular hole, and the top seat includes a second valve seat matching hole and a second circular hole; the aircraft control valve valve seat is placed between the base and the top seat, and the base, the aircraft control valve valve seat and the top seat are connected and fixed to each other by fasteners. The problem that the valve seat could not be pre-tested separately in the past is solved. Through this tooling, the valve seat can be tested separately, effectively avoiding the failure of the overall function test of the valve due to valve seat problems, thereby greatly improving the assembly efficiency and quality of the aircraft four-inch control valve. It is easy to use, safe and reliable, simple in structure, easy to manufacture and process, and low in cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 It is a structural schematic diagram of the base described in the utility model;

[0016] Figure 2 It is a cross-sectional schematic diagram of the base described in the utility model;

[0017] Figure 3 It is a structural schematic diagram of the top seat described in the utility model;

[0018] Figure 4 It is a cross-sectional schematic diagram of the top seat described in the utility model;

[0019] Figure 5 This is a schematic structural diagram of the tested valve seat assembly described in the utility model.

[0020] In the figure: 1, base; 2, top seat; 3, first valve seat matching hole; 4, first circular hole; 5, second valve seat matching hole; 6, second circular hole; 8, threaded hole; 9, through hole. DETAILED DESCRIPTION

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are 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 on the present invention.

[0022] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figures 1 to 4 As shown, an aircraft control valve seat test tool includes a base 1 and a top seat 2, wherein the base 1 includes a first valve seat matching hole 3 and a first circular hole 4, and the top seat 2 includes a second valve seat matching hole 5 and a second circular hole 6.

[0026] The aircraft control valve seat is placed between the base 1 and the top seat 2, and the base 1, the aircraft control valve seat and the top seat 2 are connected and fixed to each other by fasteners. In this embodiment, the fasteners are screws, and in the actual installation process, fasteners such as bolts, rivets, and pins can also be used.

[0027] In practical applications, the base 1 is a cubic structure. In this embodiment, the base 1 is a cube as a whole. The base 1 is provided with threaded holes 8 at the four corners of the mating surface with the top seat 2 for screwing the base 1 and the top seat 2 together.

[0028] The top seat 2 is provided with through holes 9 at four corners of the mating surface with the base 1 , and the through holes 9 correspond to the threaded holes 8 . Fasteners pass through the through holes 9 and the threaded holes 8 to connect and fix the top seat 2 and the base 1 .

[0029] In actual application, the first valve seat matching hole 3 is set as a circular hole with a depth of 22 mm and a diameter of 12 mm. The first valve seat matching hole 3 is used to place the upstream section of the valve seat assembly to be tested. The first circular hole 4 is set on the side of the base 1. The first circular hole 4 is provided with a thread for connecting the air supply end (air source). The first valve seat matching hole 3 and the first circular hole 4 are connected.

[0030] The second valve seat matching hole 5 is arranged inside the top seat 2, and is used to place the downstream section of the valve seat assembly to be tested. The second circular hole 6 is arranged on the top of the top seat 2, and a thread is arranged in the second circular hole 6. The second circular hole 6 is connected to the air outlet, and the second valve seat matching hole 5 and the second circular hole 6 are in communication.

[0031] The top seat 2 and the base 1 are both made of aluminum alloy, which has good corrosion resistance, high strength and rigidity, and can meet the requirements of the top seat 2 and the base 1 when bearing a certain load.

[0032] like Figure 5 Shown is a schematic diagram of the structure of the valve seat assembly being tested.

[0033] When in use, place the upstream section of the tested valve seat assembly into the base 1, align the four holes on the tested valve seat assembly with the four threaded holes 8 on the base 1, and the downstream section of the tested valve seat assembly faces upwards. Then place the top seat 2 on the downstream section of the tested valve seat assembly, align the four through holes 9 on the top seat 2 with the holes on the valve seat assembly, and use four screws to connect and fix the top seat 2, the tested valve seat assembly and the base 1. Test the valve seat assembly by connecting the air outlet and air supply ends.

[0034] The utility model is a test fixture designed for the valve seat of a four-inch control valve of an aircraft. The base and the top seat are made of aluminum alloy, which is both light and corrosion-resistant. The fixture can pre-test the valve seat alone, solving the problem of having to rely on the complete valve function test in the past, and greatly improving the efficiency and quality of valve assembly. It is simple to operate and has a simple structure. It can be fixed with four screws, which is convenient and easy to use. At the same time, the aluminum alloy material and optimized design ensure the safety and durability of the fixture, and improve its market competitiveness.

[0035] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. An aircraft control valve seat test tool, characterized in that: The invention comprises a base (1) and a top seat (2), wherein the base (1) comprises a first valve seat matching hole (3) and a first circular hole (4), and the first valve seat matching hole (3) and the first circular hole (4) are connected; the top seat (2) comprises a second valve seat matching hole (5) and a second circular hole (6), and the second valve seat matching hole (5) and the second circular hole (6) are connected; an aircraft control valve seat is arranged between the base (1) and the top seat (2), and the base (1), the aircraft control valve seat and the top seat (2) are connected and fixed to each other by fasteners.

2. The aircraft control valve seat test tool according to claim 1, characterized in that: The base (1) is in a cubic structure, and threaded holes (8) are provided at four corners of the matching surface of the base (1) and the top seat (2).

3. The aircraft control valve seat test tool according to claim 2, characterized in that: The top seat (2) is provided with through holes (9) at four corners of the mating surface with the base (1), the through holes (9) corresponding to the threaded holes (8), and the fasteners pass through the through holes (9) and the threaded holes (8) to connect and fix the top seat (2) and the base (1).

4. The aircraft control valve seat test tool according to claim 1, characterized in that: The first circular hole (4) is arranged on the side of the base (1), a thread is arranged in the first circular hole (4), and the first circular hole (4) is connected to the air supply end.

5. The aircraft control valve seat test tool according to claim 1, characterized in that: The second valve seat matching hole (5) is arranged inside the top seat (2), the second circular hole (6) is arranged on the top of the top seat (2), a thread is arranged in the second circular hole (6), and the second circular hole (6) is connected to the air outlet end.

6. The aircraft control valve seat test tool according to claim 1, characterized in that: The top seat (2) and the base seat (1) are both made of aluminum alloy.

7. The aircraft control valve seat test tool according to claim 1, characterized in that: The fastener is a screw.

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