Anti-corrosion material brushing device for hydraulic pipeline of aeronautical equipment

Abstract

The utility model belongs to the technical field of brushing and cleaning structure design, and discloses an anti-corrosion material brushing device for a hydraulic pipeline of aviation equipment. The brushing device is composed of an anti-corrosion material storage tank and a round brush head. The storage tank is a hollow cylinder with one open end; the open end of the storage tank is provided with internal threads; the brush head is round; the lower end of the brush head is connected with a slim tube; a connecting cylinder is arranged at the joint of the brush head and the thin tube and is provided with an external thread; the thin pipe extends into the storage tank, and the brush head is in threaded connection with the storage tank through the connecting cylinder. The anti-corrosion material storage tank is made of transparent soft solvent-resistant plastic, and threads are designed on the head portion of the storage tank and used for being connected with the sealing cover or the round brush head. The brush head portion of the round brush head is made of titanium-nickel shape memory alloy, copper-aluminum-beryllium shape memory alloy or other superelastic metal.

Description

Technical Field

[0001] The utility model belongs to the technical field of brushing and cleaning structure design, and discloses a device for brushing anti-corrosion materials for hydraulic pipelines of aviation equipment. Background Art

[0002] Applying corrosion protection agents (coatings, corrosion inhibitors, etc.) to the surfaces of aviation equipment is a key method for preventing corrosion. Generally, aircraft hydraulic lines are sprayed with corrosion protection coatings before installation. However, based on past service experience in continental climates, some hydraulic lines installed within the aircraft interior have not received rigorous corrosion protection treatment. Furthermore, due to the vibrations of aircraft during takeoff and landing, the corrosion protection material sprayed on some hydraulic lines can fall off the base material. Failure to promptly reapply corrosion protection to these hydraulic lines can lead to corrosion. Currently, small brushes are commonly used to coat areas requiring coating. However, due to considerations such as interior cabin space in aircraft design, hydraulic lines are often installed against the skin or other equipment, and the spacing between multiple parallel lines is extremely small. This inevitably creates blind spots when applying with brushes. Brush-applied coatings can result in uneven and excessive coating thickness. Excessive coating on hydraulic lines inevitably increases aircraft weight, fuel consumption, and reduced payload capacity. Furthermore, the containers used to store the anti-corrosion materials used with brushes are often open tanks that can easily tip over, and the brush tip is also prone to dripping. To prevent the anti-corrosion material from spilling or dripping onto delicate equipment or organic materials near the hydraulic lines, these areas must be masked before application. These cumbersome and time-consuming processes do not result in a high-quality coating, necessitating the design of a new anti-corrosion material application tool for aviation hydraulic lines.

[0003] There are many types of brushing tools designed specifically for tubular workpieces. CN116116643A discloses a steel pipe outer wall painting device, which solves the technical problem that part of the outer wall of the steel pipe cannot be painted due to the obstruction of the clamping mechanism. CN216539137U discloses a brushing device for the production of anti-corrosion pipelines, which is composed of a device such as an operating table with an inner groove, a fixedly connected support rod, a top plate and a scraping assembly. These brushing devices have a complex structure and are used to paint the outer walls of large pipelines that have not yet been installed. They cannot effectively paint the outer walls of small-diameter pipelines that have been installed and are in service. CN215303707U discloses a device for anti-corrosion maintenance brushing of installed heating pipelines. The device has a simple structure and is easy to use. However, due to the extremely small distance between the parallel installed aviation hydraulic pipelines, the front section of the device cannot be used normally by inserting the brush head into the hydraulic pipeline after being stretched out. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide an aviation hydraulic pipeline painting device that does not leak during the painting process and the brush head can be easily inserted into the hydraulic pipeline. At the same time, the device also has the characteristics of simple structure and easy use.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A device for applying anti-corrosion material to hydraulic pipelines of aviation equipment, comprising: a storage tank and a brush head;

[0007] The storage tank is a hollow cylinder with one end open; the open end of the storage tank is provided with an internal thread;

[0008] The brush head is a round brush head, and the lower end of the brush head is connected to a thin tube;

[0009] The connection between the brush head and the capillary tube is provided with a connecting cylinder, which is provided with an external thread;

[0010] The thin tube extends into the storage tank, and the brush head is screwed to the storage tank through a connecting cylinder.

[0011] Preferably, the storage tank is made of transparent soft solvent-resistant plastic, and the head of the storage tank is designed with a thread for connecting a sealing cap or a round brush head.

[0012] Preferably, the brush head portion of the circular brush head is made of titanium-nickel shape memory alloy, copper-aluminum-beryllium shape memory alloy or other superelastic metals.

[0013] Preferably, the thin tube below the circular brush head squeezes the anti-corrosion material from the storage tank to the circular brush head.

[0014] Preferably, the circular brush head has a groove on the inside, the capillary tube is connected to the circular brush head and communicates with the groove on the inside of the circular brush head, and the groove is used to evenly distribute the anti-corrosion material squeezed out from the inside of the capillary tube to the entire surface of the circular brush head. The brush head has a notch on the side away from the capillary tube.

[0015] Preferably, the circular brush head is covered with a detachable disposable flexible porous sponge to improve the uniformity of brushing and prevent the anti-corrosion material seeping from the groove from flowing out or dripping from the circular brush head.

[0016] The beneficial effects of this application are:

[0017] This utility model has a simple structure and is easy to use. The superelastic shape memory alloy is recyclable. Through its simple structure, it completely solves the problem that existing brush painting tools cannot be smoothly inserted into hydraulic pipelines due to the parallel and close installation of aviation hydraulic pipelines, thus achieving efficient and high-quality brush painting of aviation hydraulic pipelines. The brush painting device proposed in this application has no blind spots, no leakage during brushing, and the brushed film layer has a uniform thickness, which can effectively reduce the risk of corrosion in aviation hydraulic pipelines and has great market promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions and advantages of the embodiments of the present application or the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art description.

[0019] Figure 1 This is a structural schematic diagram of a device for applying anti-corrosion material to aviation hydraulic pipelines according to the present invention;

[0020] Figure 2 This is a front view of a brush head of an anti-corrosion material coating device for aviation hydraulic pipelines according to the utility model;

[0021] Figure 3 This is a cross-sectional view of the circular ring portion of the brush head of an anti-corrosion material brush coating device for aviation hydraulic pipelines described in the utility model;

[0022] Figure 4 This is a side view of the circular ring portion of the brush head of an anti-corrosion material brush coating device for aviation hydraulic pipelines described in the utility model;

[0023] 1- Anti-corrosion material storage tank, 2- Brush head, 3- Thin tube, 4- Small groove inside the brush head for conveying anti-corrosion material, 5- Threaded connection between the brush head and the storage tank, 6- Small notch on the top of the brush head. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0025] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0026] Furthermore, the terms "installed," "disposed," "provided with," "connected," "connected," and "socketed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0027] Reference Figure 1 and Figure 2 The utility model discloses an anti-corrosion material brushing device for aviation hydraulic pipelines, which is mainly composed of an anti-corrosion material storage tank 1 and a circular brush head 2, which are connected by a screw connection 5.

[0028] The anti-corrosion material storage tank 1 is a cylindrical structure with a diameter of 2.5-3.5 cm and a height of 12-15 cm. The main purpose of this structure is to facilitate construction workers to hold it.

[0029] Furthermore, the anti-corrosion material storage tank 1 is made of transparent soft plastic with good sealing performance, which ensures the sealing performance of the storage tank and facilitates the construction workers to extrude the anti-corrosion material.

[0030] The circular brush head 2 is made of titanium-nickel shape memory alloy or copper-aluminum-beryllium shape memory alloy or other superelastic metals.

[0031] Furthermore, there is a small notch 6 at the top of the circular brush head 2, and during operation, the circular brush head is inserted into the hydraulic pipeline through the small notch.

[0032] Furthermore, a thin tube 3 is connected to the bottom of the circular brush head 2. After squeezing the storage tank, the anti-corrosion material is transferred to the circular brush head through the thin tube.

[0033] Further, such as Figure 3 and Figure 4 As shown, there is a small groove 4 on the inner side of the circular brush head from the connection point between the brush head and the thin tube to the notch at the top of the brush head. The small groove can transfer the anti-corrosion material from the top of the thin tube to the entire circular brush head.

[0034] Furthermore, the circular brush head is covered with a detachable disposable flexible porous sponge to improve the uniformity of brushing and prevent the anti-corrosion material seeping from the groove from flowing out or dripping from the circular brush head.

[0035] Preferably, the circular brush head is provided with a variety of specifications corresponding to different outer diameters of hydraulic pipelines.

[0036] This patented utility model uses a superelastic shape memory alloy as the brush head of the coating device. The brush head can be easily inserted into the hydraulic pipeline to be coated by applying external force directly by hand. Due to its superelasticity, the brush head is completely unrestricted by the narrow space between parallel hydraulic pipelines during insertion. Once inserted, the brush head relies on its shape memory function to perfectly fit the hydraulic pipeline shape, ensuring a complete and uniform coating. At the same time, the anti-corrosion material storage tank threaded to the brush head has excellent sealing performance, which can effectively prevent the anti-corrosion material from spilling and dripping during coating.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for applying anti-corrosion materials to hydraulic pipelines of aviation equipment, characterized in that: The device comprises: a storage tank and a brush head; The storage tank is a hollow cylinder with one end open; the open end of the storage tank is provided with an internal thread; The brush head is a round brush head, and the lower end of the brush head is connected to a thin tube; A connecting cylinder is provided at the connection between the brush head and the capillary tube, and the connecting cylinder is provided with an external thread; The thin tube extends into the storage tank, and the brush head is screwed to the storage tank through a connecting cylinder.

2. The device according to claim 1, characterized in that: The storage tank is made of corrosion-resistant material.

3. The device according to claim 2, characterized in that: The storage tank is made of transparent soft solvent-resistant plastic.

4. The device according to claim 3, characterized in that: The brush head is made of titanium-nickel shape memory alloy or copper-aluminum-beryllium shape memory alloy.

5. The device according to claim 4, characterized in that: The inner wall of the brush head is provided with a groove along the circumferential direction; and the brush head is provided with a notch on the side away from the capillary.

6. The device according to claim 5, characterized in that: The device also includes: a flexible porous sponge; the flexible porous sponge is sleeved on the brush head to improve the uniformity of brushing.

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