Aircraft support sealing bottom brush coating device

Abstract

The utility model provides an airplane support sealing bottom brush coater which comprises a material storage part, a brushing part and a clamping column, the brushing part comprises a sponge block and a brushing seat, the sponge block comprises a water absorption face and a brushing face, one end face of the brushing seat is connected with the material storage part, the other end face of the brushing seat is connected with the water absorption face of the sponge block, a pigment through hole is formed in the brushing seat, and the clamping column is connected with the material storage part. A pigment outlet of the storage part is connected with the water absorption face of the sponge block through a pigment through hole, one end of the clamping column is fixedly connected with the end, close to the sponge block, of the brushing base, and the other end of the clamping column extends out of the brushing face of the sponge block. According to the airplane support sealing bottom brush coating device provided by the utility model, the clamping column fixed on the coating device is used for blocking pigment, and the clamping column can be accurately matched with a connecting piece hole, so that the pigment is prevented from entering the hole in the coating process, the pigment is effectively prevented from entering the connecting piece hole, and the design requirement is met. The sponge block is used as a core component of the brushing part and can uniformly absorb and release pigment, so that the thickness consistency of the sealing prime coat is ensured, and waste is avoided while the coating accuracy and uniformity are improved.

Description

Technical Field

[0001] The utility model relates to the field of civil aircraft manufacturing, in particular to a brush for painting the sealing bottom of an aircraft bracket. Background Art

[0002] In the domestic civil aircraft manufacturing industry, during the aircraft assembly process, many system part brackets need to be sealed on the mating surfaces. According to the existing sealing technology and material requirements, a primer needs to be brushed before applying the sealant. During the process of brushing the primer on the aircraft bracket, due to the design requirement that the connecting piece holes on the aircraft bracket cannot come into contact with the pigment, generally, the method of brushing the primer is to use a writing brush to brush it manually, or use adhesive tape to assist in protecting the shape of the connecting piece holes on the aircraft bracket to ensure that the design requirements are met when brushing the outer shape. However, using a writing brush to brush is likely to cause problems such as pigment flowing, irregular brushing shapes, and difficult to unify the brushing margins, which affect the aesthetics. While using adhesive tape to assist in shape protection can ensure that the connecting piece holes on the aircraft bracket do not come into contact with the pigment and can ensure regular and unified brushing shapes, but pasting and removing the tape is very time-consuming, and at the same time, the tape needs to be discarded after use, consuming material costs. How to save the cost of brushing the primer while meeting the requirement that the connecting piece holes on the aircraft bracket do not come into contact with the pigment has become a difficult problem. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is: to provide a brush for painting the sealing bottom of an aircraft bracket, which can save the cost of brushing the primer while meeting the requirement that the connecting piece holes on the aircraft bracket do not come into contact with the pigment.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A brush for painting the sealing bottom of an aircraft bracket includes a material storage part, a brushing part, and a clamping post. The brushing part includes a sponge block and a brushing seat. The sponge block includes a water absorption surface and a brushing surface. One end surface of the brushing seat is connected to the material storage part, and the other end surface is connected to the water absorption surface of the sponge block. The brushing seat is provided with a pigment through hole, and the pigment outlet of the material storage part is connected to the water absorption surface of the sponge block through the pigment through hole. One end of the clamping post is connected to the end of the brushing seat close to the sponge block, and the other end of the clamping post extends out from the brushing surface of the sponge block.

[0006] Furthermore, it includes a protective cover. The protective cover is a lid with a cavity. The edge of the open end of the protective cover can be detachably fitted with the edge of the brushing seat, and the water absorption surface of the sponge block and the extending part of the clamping post can be placed in the cavity of the protective cover.

[0007] Furthermore, the pigment through hole on the brushing seat is a threaded hole, and the pigment outlet of the material storage part is provided with a corresponding thread. The material storage part and the brushing part are connected by threading through the pigment through hole.

[0008] Furthermore, a thread is provided on the side wall of one end of the clamping post close to the brushing base, and a threaded hole is provided at the corresponding position on the brushing base. The clamping post and the brushing base are threadedly connected through the threaded hole.

[0009] The beneficial effects of the present utility model are as follows:

[0010] For the aircraft bracket sealing bottom brushing device provided by the present utility model, the clamping post fixed on the brushing device is used to block the pigment. The clamping post can accurately cooperate with the connecting piece hole, avoiding the entry of pigment into the hole during the coating process, effectively blocking the pigment from entering the connecting piece hole, and meeting the design requirements.

[0011] As the core component of the brushing part, the sponge block can evenly absorb and release the pigment, ensuring the consistent thickness of the sealing undercoat, improving the accuracy and uniformity of the coating, and not causing waste at the same time.

[0012] The design of the protective cover enables the brushing part to be easily disassembled, facilitating cleaning and replacement of the sponge block. At the same time, it can further prevent pigment loss, reduce the maintenance cost, and avoid pigment waste.

[0013] The quick installation and disassembly between the material storage part and the brushing part are realized by means of threaded connection, simplifying the operation process and improving the work efficiency.

[0014] Currently, the upper brackets on the C919 aircraft can be classified into three models. One has a reference diameter of the connecting piece hole of 2.2 mm, one is 3.0 mm, and one is 3.8 mm. Therefore, the size of the clamping post needs to be replaced according to different situations. In this solution, it is preferred that the clamping post and the brushing base are threadedly connected through the threaded hole for easy replacement. Description of the Drawings

[0015] In order to more clearly illustrate the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below.

[0016] Figure 1 It is a schematic structural diagram of the aircraft bracket sealing bottom brushing device.

[0017] Figure 2 It is a schematic structural diagram of the protective cover.

[0018] The reference numerals in the figure are: 1 - material storage part, 2 - brushing part, 3 - protective cover, 4 - clamping post. Detailed Embodiments

[0019] The present utility model will be further described below with reference to the drawings.

[0020] In order to make the purpose, technical solutions and advantages of the present utility model more clear and understandable, the following further details the present utility model in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described below are only used to explain the present utility model and are not used to limit the present utility model.

[0021] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "horizontal", "vertical", "far from", "close to", etc. should be understood in a broad sense and are not used to limit the protection scope of the present utility model. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0022] The aircraft bracket sealing bottom painting applicator includes a material storage part 1, a painting part 2 and a clamping post 4. The painting part 2 includes a sponge block and a painting seat. The sponge block includes a water absorption surface and a painting surface. One end surface of the painting seat is connected to the material storage part 1, and the other end surface is connected to the water absorption surface of the sponge block. The painting seat is provided with a pigment through hole. The pigment outlet of the material storage part 1 is connected to the water absorption surface of the sponge block through the pigment through hole. One end of the clamping post 4 is connected to the end of the painting seat close to the sponge block, and the other end of the clamping post 4 extends out from the painting surface of the sponge block.

[0023] As Figure 1 shown, the clamping post 4 can accurately cooperate with the connecting piece hole, avoiding the entry of pigment into the hole during the coating process, effectively blocking the pigment from entering the connecting piece hole, and meeting the design requirements.

[0024] As the core component of the painting part 2, the sponge block can evenly absorb and release pigment, ensuring the consistent thickness of the sealing bottom coating, improving the accuracy and uniformity of coating, and at the same time not causing waste.

[0025] As Figure 2 shown, it includes a protective cover 3. The protective cover 3 is a lid with a cavity. The edge of the open end of the protective cover 3 can be detachably fitted with the edge of the painting seat. The water absorption surface of the sponge block and the extending part of the clamping post 4 can be placed in the cavity of the protective cover 3.

[0026] The design of the protective cover 3 enables the painting part 2 to be conveniently disassembled, facilitating the cleaning and replacement of the sponge block. At the same time, it can further prevent the loss of pigment, reduce the maintenance cost, and avoid pigment waste.

[0027] Furthermore, the pigment through hole on the painting seat is a threaded hole, and the pigment outlet of the material storage part 1 is provided with a corresponding thread. The material storage part 1 and the painting part 2 are threadedly connected through the pigment through hole.

[0028] In this solution, the storage part 1 and the brushing part 2 can also be fixed by welding. However, the threaded connection is preferred to achieve the quick installation and disassembly between the storage part 1 and the brushing part 2, which simplifies the operation process and improves the work efficiency.

[0029] Furthermore, a thread is provided on the side wall of the end of the clamping post 4 close to the brushing seat, and a threaded hole is provided at the corresponding position on the brushing seat. The clamping post 4 is threadedly connected to the brushing seat through the threaded hole.

[0030] Currently, the upper brackets on the 919 aircraft can be classified into three models. One type has a reference diameter of the connecting piece hole of 2.2 mm, another is 3.0 mm, and the other is 3.8 mm. Therefore, the size of the clamping post 4 needs to be changed according to different situations. In this solution, it is preferred that the clamping post and the brushing seat are threadedly connected through the threaded hole, which is convenient for replacement.

[0031] For the brushing device for the sealed bottom of the aircraft bracket provided by the present utility model, its preparation process and surface treatment method are not limited. For those skilled in the art, various changes and modifications can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. Aircraft bracket sealing primer brush applicator, characterized in that: The invention comprises a material storage part (1), a brushing part (2) and a clamping column (4); the brushing part (2) comprises a sponge block and a brushing seat; the sponge block comprises a water absorption surface and a brushing surface; one end surface of the brushing seat is connected to the material storage part (1), and the other end surface is connected to the water absorption surface of the sponge block; the brushing seat is provided with a pigment through hole; the pigment outlet of the material storage part (1) is connected to the water absorption surface of the sponge block through the pigment through hole; one end of the clamping column (4) is connected to one end of the brushing seat close to the sponge block; the other end of the clamping column (4) protrudes from the brushing surface of the sponge block.

2. The aircraft bracket sealing primer brush applicator according to claim 1, characterized in that: The protective cover (3) comprises a cover having a cavity. The edge of the open end of the protective cover (3) can be detachably matched with the edge of the brush seat. The water absorption surface of the sponge block and the protruding part of the clamping column (4) can be placed in the cavity of the protective cover (3).

3. The aircraft bracket sealing primer brush applicator according to claim 1, characterized in that: The pigment through hole on the brushing seat is a threaded hole, and the pigment outlet of the material storage part (1) is provided with a corresponding thread, and the material storage part (1) and the brushing part (2) are connected by the pigment through hole thread.

4. The aircraft bracket sealing primer brush applicator according to claim 1, characterized in that: A thread is provided on the side wall of one end of the clamping column (4) close to the brush seat, and a threaded hole is provided at a corresponding position on the brush seat. The clamping column (4) is threadedly connected to the brush seat via the threaded hole.

Images