Airplane multichannel pipeline electric lap joint fixing device

Abstract

The utility model provides an airplane multi-channel pipeline electric lap joint fixing device which comprises an upper clamping belt, a lower clamping belt, an upper clamping belt and a lower clamping belt. The lower lap joint sheet is used for being in electrical contact with the pipeline to provide lap joint; the pipeline supporting piece is used for supporting and fixing a pipeline; the base is used for being in electric contact with the upper clamping belt and the aircraft pipeline support to form an electric lap joint path; the two ends of the upper clamping belt and the base are fixed to the aircraft pipeline support through bolts and gaskets, and the upper clamping belt, the lower lap joint piece, the pipeline supporting piece, the base and the aircraft pipeline support are fixed together through long bolts in the middle. According to the utility model, the pipeline fixing function can be realized, the electric lap joint function can be realized, the weight of an airplane is reduced, and the occupation of the internal space of the airplane is reduced; the pipe clamp is lower than a traditional pipe clamp, and the upper portion of the pipe clamp is attached to the pipeline, so that interference with surrounding structures or system components can be avoided under some conditions.

Description

Technical Field

[0001] The utility model belongs to the field of aircraft pipeline electrical overlap design and relates to an aircraft multi-channel pipeline electrical overlap fixing device, which can realize pipeline support and electrical overlap functions at the same time. Background Art

[0002] Many systems on the aircraft use metal pipes to transmit liquids or gases, and these pipes all have electrical bonding requirements to conduct static electricity and lightning current. In the past, independent clamps were used to make electrical contact with the pipes, and electrical bonding paths were realized by adding bonding wires and onboard brackets. This practice resulted in a large number of clamps, bonding wires, bonding brackets and matching fasteners specially set for electrical bonding on the aircraft, which increased the weight of the aircraft, occupied the space inside the aircraft, and increased the inspection and maintenance work. Utility Model Content

[0003] In order to solve the above problems, the utility model provides an aircraft multi-channel pipeline electrical lap fixing device, which can not only realize the support and fixing functions of the pipeline, but also meet the electrical lap requirements through the coordinated use of an upper clip, a lower lap plate, a pipeline support and a base, thereby avoiding the need to add independent electrical lap parts, and solving the problems of increasing aircraft weight, occupying internal space, and increasing inspection and maintenance workload in the existing practice.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] An aircraft multi-channel pipeline electrical lap fixing device comprises an upper clamping belt 1, a lower lap plate 2, a pipeline support 3 and a base 4.

[0006] An upper cassette 1 is provided on the semicircular part of the pipeline, and a pipeline support 3 is provided on the lower semicircular part. The two cooperate to fix the pipeline. A base 4 is provided below the pipeline support 3. The lower part of the upper cassette 1 extends to the bottom of the pipeline support 3 and is fixed on the aircraft pipeline support 5 together with the base 4. The upper cassette 1 and the base 4, and the base 4 and the aircraft pipeline support 5 are electrically overlapped. A lower overlap sheet 2 is provided between the pipeline support and the pipeline, and covers the pipeline to provide electrical overlap. Specifically:

[0007] The base 4 is a strip plate-shaped connecting member, which is provided with a plurality of bolt through holes, and is fixed to the aircraft pipeline bracket 5 by bolts, and upper curved edges are provided on both sides of the base 4; the pipeline support 3 is a block-shaped supporting member, and convex edges are provided on both sides of the bottom, which cooperate with the curved edges on the base 4 to limit the longitudinal and axial movement of the pipeline support 3. Two semicircular grooves arranged side by side are provided on the upper surface of the pipeline support 3 according to the shape of the pipeline, which are used to support the pipeline, and a bolt through hole is provided between the two semicircular grooves, which are fixed to the aircraft pipeline bracket 5 together with the base 4; the upper part of the upper cassette 1 is arranged as two semicircular shapes arranged side by side to fit the upper semicircular part of the pipeline, and a bolt through hole is provided between the two semicircles, and both ends of the upper cassette 1 extend downward in an L shape, and bolt through holes are provided on the bottom surfaces of both ends, which are connected to the bottom The seat 4 is fixed on the aircraft pipeline support 5, the upper clip 1 is placed above the pipeline support 3 and forms two complete circular holes with the pipeline support 3 to fix the pipeline; the lower lap piece 2 is a thin sheet of metal lap strip, which is arranged in a circular shape on both sides to cover most of the pipeline surface. The lower lap piece 2 is placed between the pipeline support 3 and the pipeline, and its circular parts on both sides fall into the two circular holes formed by the upper clip 1 and the pipeline support 3, and are electrically contacted with the pipeline fixed in the holes. At the same time, the lower lap piece 2 is electrically contacted with the upper clip 1 on both sides and in the middle position. A bolt through hole is provided in the middle position of the lower lap piece 2, i.e., between the two circles. The bolts pass through the upper clip 1, the lower lap piece 2, the pipeline support 3 and the base 4 in turn and are screwed into the aircraft pipeline support 5 to achieve fixation.

[0008] In the fixing device, the upper strap 1, the lower lap plate 2 and the pipeline are in electrical contact with each other, the upper strap 1 is in electrical contact with the base 4, and the base 4 is in electrical contact with the aircraft pipeline bracket 5, thereby realizing a complete electrical lap path.

[0009] The beneficial effects of the utility model are: the utility model can simultaneously realize the functions of pipe fixing and electrical lap joint, has the characteristics of simple structure and easy installation, and can also avoid the need for independent electrical lap joint clamps, lap joint wires, and other accessories of lap joint brackets, thereby reducing the weight of the aircraft, saving internal space, and reducing inspection and repair work. The height of the utility model is lower than that of the traditional pipe clamp, and the upper part fits the pipe, so it can avoid interference with surrounding structures or system components in some cases. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of a multi-channel pipeline electrical lap-jointing fixture.

[0011] Figure 2 This is a structural diagram of the components of a multi-channel pipeline electrical bonding fixture.

[0012] Figure 3 This is a schematic diagram of the usage status of the multi-channel pipeline electrical bonding fixture.

[0013] In the figure: 1-upper cassette; 2-lower lap plate; 3-pipe support; 4-base; 5-aircraft pipe bracket. DETAILED DESCRIPTION

[0014] The technical solution of the utility model is described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. All other embodiments improved or adjusted by ordinary technicians in this field based on the embodiments of the utility model belong to the protection scope of the utility model.

[0015] like Figure 1 , 2 As shown in 3, an aircraft multi-channel pipeline electrical lap fixing device includes an upper clamping tape 1, a lower lap plate 2, a pipeline support 3 and a base 4.

[0016] The base 4 is a strip plate-shaped connecting member, on which three bolt through holes are provided along the length direction, and upper curved edges are provided on both sides of the length direction of the base 4; the pipeline support 3 is a block-shaped supporting member, and convex edges are provided on both sides of the bottom, which cooperate with the curved edges on the base 4 to limit the longitudinal and axial movement of the pipeline support 3. Two semicircular grooves are arranged side by side on the upper surface of the pipeline support 3 according to the shape of the pipeline, which are used to support the pipeline, and a bolt through hole is provided between the two semicircular grooves; the upper part of the upper cassette 1 is arranged as two semicircular shapes side by side to fit the upper semicircular part of the pipeline, and a bolt through hole is provided between the two semicircles. Both ends of the upper cassette 1 extend downward in an L shape, and bolt through holes are provided on the bottom surfaces of both ends, which, together with the bolt through holes on both sides of the base 4, are fixed to the aircraft pipeline support through short bolts and washers. On the frame 5, the upper clamping band 1 is placed above the pipeline support 3 and forms two complete circular holes with the pipeline support 3 to fix the pipeline; the lower lap piece 2 is a thin sheet of metal lap strip, which is arranged in a circular shape on both sides to cover most of the pipeline surface. The lower lap piece 2 is placed between the pipeline support 3 and the pipeline, and its circular parts on both sides fall into the two circular holes formed by the upper clamping band 1 and the pipeline support 3, and are electrically contacted with the pipeline fixed in the holes. At the same time, the lower lap piece 2 is electrically contacted with the upper clamping band 1 on both sides and the middle position. A bolt through hole is provided in the middle position of the lower clamping band 2, that is, between the two circles. The long bolt is matched with a washer and passes through the bolt through holes in the middle of the upper clamping band 1, the lower clamping band 2, the pipeline support 3 and the base 4 in turn, and then is screwed into the aircraft pipeline bracket 5 to achieve fixation.

[0017] In the fixing device, the upper strap 1, the lower lap plate 2 and the pipeline are in electrical contact with each other, the upper strap 1 is in electrical contact with the base 4, and the base 4 is in electrical contact with the aircraft pipeline bracket 5, thereby forming a complete electrical lap path.

[0018] The method of using the fixing device is as follows: the corresponding positions of the aircraft pipeline surface and the upper surface of the aircraft pipeline bracket 5 are processed to make them clean and conductive, the lower lap plate 2 is clamped on the aircraft pipeline, and then the pipeline support 3 and the base 4 are placed at the corresponding positions on the aircraft pipeline bracket, and then the upper clamping band 1 is inserted into the upper half of the pipeline and aligned with the base 4. Finally, a long bolt is used to pass through the bolt through holes in the middle of the upper clamping band 1, the lower lap plate 2, the pipeline support 3 and the base 4 to preliminarily fix it on the aircraft pipeline bracket 5, and then a short bolt is used to pass through the bolt through holes at both ends of the upper clamping band 1 and on both sides of the base 4 to fix it on the aircraft pipeline bracket 5 to complete the installation. The installation result is as shown in FIG. Figure 3 As shown, after installation is completed, sealant is applied around the contact areas between the pipeline and the fixture and between the fixture and the aircraft pipeline bracket 5 to prevent corrosion.

[0019] The above-described embodiments merely express the implementation methods of the present invention, but they cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An aircraft multi-channel pipeline electrical lap fixing device, characterized in that: The fixing device comprises an upper clamping belt (1), a lower overlapping plate (2), a pipeline support (3) and a base (4); An upper clamping band (1) is provided on the upper semicircular part of the pipeline, and a pipeline support (3) is provided on the lower semicircular part, and the two cooperate to fix the pipeline. A base (4) is provided below the pipeline support (3). The lower part of the upper clamping band (1) extends to the bottom of the pipeline support (3) and is fixed together with the base (4) on an aircraft pipeline support (5). The upper clamping band (1) and the base (4), as well as the base (4) and the aircraft pipeline support (5) are electrically overlapped. A lower overlap sheet (2) is provided between the pipeline support and the pipeline, and covers the pipeline to provide electrical overlap.

2. The aircraft multi-channel pipeline electrical lap fixing device according to claim 1, characterized in that: The specific structure of the fixing device is: The base (4) is a strip-shaped plate-shaped connecting member, which is provided with a plurality of bolt through holes and is fixedly mounted on the aircraft pipeline bracket (5) by bolts; the pipeline support (3) is a block-shaped supporting member, and the upper surface of the pipeline support (3) is provided with two side-by-side semicircular grooves according to the pipeline shape, which are used to support the pipeline; the upper part of the upper clamping band (1) is provided with two side-by-side semicircular shapes to fit the upper semicircular part of the pipeline, and both ends of the upper clamping band (1) extend downward in an L shape, and the bottom surfaces of both ends are provided with bolt through holes, which are fixed to the aircraft pipeline bracket (5) together with the base (4), and the upper clamping band (1) is placed above the pipeline support (3) and forms two complete circular holes with the pipeline support (3) to achieve the fixation of the pipeline; The lower lap plate (2) is a thin metal lap strip, which is arranged in a circular shape on both sides to cover most of the pipeline surface. The lower lap piece (2) is placed between the pipeline support (3) and the pipeline, and the circular parts on both sides thereof fall into the two circular holes formed by the upper clamping band (1) and the pipeline support (3), and are in electrical contact with the pipeline fixed in the holes. At the same time, the lower lap piece (2) Electrical contact is made with the upper cassette (1) at both sides and in the middle.

3. The aircraft multi-channel pipeline electrical lap fixing device according to claim 2, characterized in that: The base (4) is provided with upper curved edges on both sides, and the bottom of the pipeline support (3) is provided with convex edges on both sides, and the two cooperate to limit the longitudinal and axial movement of the pipeline support (3).

4. The aircraft multi-channel pipeline electrical lap fixing device according to claim 2, characterized in that: A bolt hole is provided between the two semicircular grooves of the pipeline support (3), a bolt hole is provided between the two semicircles of the upper clamping band (1), and a bolt hole is provided in the middle position of the lower lap plate (2), i.e., between the two circles. The bolts pass through the upper clamping band (1), the lower lap plate (2), the pipeline support (3) and the base (4) in sequence and are then screwed into the aircraft pipeline bracket (5) for fixation.

5. An aircraft multi-channel pipeline electrical lap fixing device according to claim 1 or 2, characterized in that: In the fixing device, the upper clamping strap (1), the lower lap plate (2) and the pipeline are in electrical contact with each other, the upper clamping strap (1) is in electrical contact with the base (4), and the base (4) is in electrical contact with the aircraft pipeline bracket (5), thereby realizing a complete electrical lap path.

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