An aircraft non-disintegratable one-way valve cleaning device and its cleaning method

Abstract

The present invention relates to the technical field of aircraft mechanical accessory repair processes, and specifically to a cleaning device for an indecomposable one-way valve of an aircraft and a cleaning method thereof. The cleaning device includes an adapter connected in a mating manner with the end face contour of the one-way valve, a mandrel disposed inside the adapter for jacking open the one-way valve to perform reverse pressurized flushing, and a handle disposed at the end of the mandrel for facilitating the application of force. The specific cleaning steps are as follows: S1: Design the adapter according to the structural form and working principle of the one-way valve; S2: Install the one-way valve with a rubber ring on the adapter; S3: Rotate the handle to make the mandrel jack open the valve of the one-way valve until the valve reaches the maximum opening degree; S4: Supply hydraulic pressure from the one-way valve and return oil from the nozzle of the adapter to perform pressure flushing. By using the mandrel to jack open the one-way valve, reverse pressure flushing is achieved, solving the problem of cleaning the residual rubber-like foreign matters between the valve and the housing of the indecomposable one-way valve, which is fast and effective and avoids product scrapping.

Description

Technical Field

[0001] The present invention relates to the technical field of aircraft mechanical accessory repair processes, and specifically to a cleaning device and cleaning method for an indecomposable one-way valve of an aircraft. Background Art

[0002] For an indecomposable spherical one-way valve, as Figure 1 shown, reference numeral 11 is the housing, reference numeral 12 is the spring, reference numeral 13 is the bracket, reference numeral 14 is the valve oil passage port, which is installed at the oil return port of a certain solenoid valve of the aircraft and is used for connecting the solenoid valve to the oil return pipeline of the hydraulic system to prevent the pressure pulsation of the oil return pipeline from affecting the reliable operation of the solenoid valve. When manufacturing this one-way valve, after the one-way valve, spring, and bracket are installed in the housing, the housing is fixed by closing the opening. Since rubber and other foreign objects often remain inside the one-way valve between the valve and the housing during use, resulting in a malfunction of the valve not resetting properly. Because the one-way valve is formed in one piece during manufacturing and cannot be cleaned by disassembling the one-way valve. When the foreign object is larger than the valve oil passage hole, due to the elasticity of the foreign object and the small opening between the valve and the housing, the normal cleaning method cannot effectively remove it. Therefore, an effective, convenient, and fast cleaning device and method are needed to solve this problem. Summary of the Invention

[0003] To solve the above problems, the present invention proposes a cleaning device and cleaning method for an indecomposable one-way valve of an aircraft.

[0004] A cleaning device for an indecomposable one-way valve of an aircraft includes an adapter fitting that is connected in cooperation with the end face contour of the one-way valve, a mandrel provided inside the adapter fitting for jacking open the one-way valve for reverse pressure flushing, and a handle provided at the end of the mandrel for applying force.

[0005] A rubber ring for installing the adapter fitting is provided on the one-way valve.

[0006] A flat washer one and a hole-type snap ring for sealing are provided between the mandrel and the adapter fitting.

[0007] After the mandrel and the handle are fixed by screws, a spring washer and a flat washer two for sealing are provided.

[0008] A cleaning method for a cleaning device for an indecomposable one-way valve of an aircraft comprises the following specific steps:

[0009] S1: Design the adapter fitting according to the structural form and working principle of the one-way valve;

[0010] S2: Install the one-way valve on the adapter fitting after installing the rubber ring;

[0011] S3: Rotate the handle to make the mandrel jack open the valve of the one-way valve until the valve reaches the maximum opening;

[0012] S4: Supply hydraulic pressure from the check valve and return the oil from the nozzle of the adapter to conduct pressure flushing.

[0013] The beneficial effects of the present invention are as follows: By using the mandrel to push open the check valve, reverse pressure flushing is achieved, and the inside of the valve can be effectively cleaned. After grinding, the grinding residues can be effectively cleaned and removed, solving the problem of cleaning the rubber-like foreign matters remaining between the valve and the housing of the non-decomposable check valve. It is fast and effective, and the product scrapping is avoided. Description of the Drawings

[0014] The present invention will be further described below in conjunction with the drawings and embodiments.

[0015] Figure 1 It is a schematic structural diagram of the background technology of the present invention;

[0016] Figure 2 It is a front view structural schematic diagram of the present invention;

[0017] Figure 3 It is a schematic structural diagram of the mandrel of the present invention;

[0018] Figure 4 It is a schematic structural diagram of the adapter of the present invention. Detailed Embodiments

[0019] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further elaborated below.

[0020] As Figures 1 to 4 shown, a cleaning device for a non-decomposable check valve of an aircraft includes an adapter 1 that is cooperatively connected with the end face contour of the check valve 10, a mandrel 2 disposed in the adapter 1 for pushing open the check valve 10 for reverse pressure flushing, and a handle 6 disposed at the end of the mandrel 2 for applying force.

[0021] By using the mandrel 2 to push open the check valve 10, reverse pressure flushing is achieved, and the inside of the valve can be effectively cleaned. After grinding, the grinding residues can be effectively cleaned and removed, solving the problem of cleaning the rubber-like foreign matters remaining between the valve and the housing 13 of the non-decomposable check valve 10. It is fast and effective, and the product scrapping is avoided.

[0022] A rubber ring 3 for installing the adapter 1 is provided on the check valve 10.

[0023] A flat washer 4 and a hole-type snap ring 5 for sealing are provided between the mandrel 2 and the adapter 1.

[0024] After the mandrel 2 and the handle 6 are fixed by screws 9, a spring washer and a flat washer 8 for sealing are provided.

[0025] A cleaning method for a cleaning device of an aircraft non-decomposable one-way valve, and the specific steps are as follows:

[0026] S1: Design the adapter 1 according to the structural form and working principle of the one-way valve 10;

[0027] S2: After installing the rubber ring 3 on the one-way valve 10, install it on the adapter 1;

[0028] S3: Rotate the handle 6 to make the mandrel 2 push open the valve of the one-way valve 10 until the valve reaches the maximum opening;

[0029] S4: Supply hydraulic pressure from the one-way valve 10 and return oil from the nozzle of the adapter 1 for pressure flushing.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A cleaning method for a cleaning device of an aircraft non - decomposable one - way valve, characterized in that: Among them, An aircraft non-decomposable one-way valve cleaning device includes an adapter (1) that is fitted and connected to the end face contour of the one-way valve (10), a mandrel (2) arranged inside the adapter (1) for jacking open the one-way valve (10) for reverse pressure flushing, and a handle (6) arranged at the end of the mandrel (2) for facilitating the application of force; The specific steps of the cleaning method are as follows: S1: Design the adapter (1) according to the structural form and working principle of the one-way valve (10); S2: Install the one-way valve (10) on the adapter (1) after installing the rubber ring (3); S3: Rotate the handle (6) to make the mandrel (2) jack open the valve of the one-way valve (10) until the valve reaches the maximum opening; S4: Supply hydraulic pressure from the one-way valve (10) and return oil from the nozzle of the adapter (1) for pressure flushing.

2. The cleaning method of a non-disintegratable one-way valve cleaning device for an aircraft according to claim 1, characterized in that: A flat washer one (4) and a hole-type snap ring (5) for sealing are arranged between the mandrel (2) and the adapter (1).

3. The cleaning method of a cleaning device for an aircraft non-disintegratable one-way valve according to claim 1, characterized in that: After the mandrel (2) and the handle (6) are fixed by screws (9), a spring washer and a flat washer two (8) for sealing are arranged.

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