Three-way joint suitable for installation of pre-buried pipeline harness of airplane

Abstract

This utility model relates to the field of tee connector technology and discloses a tee connector suitable for the installation of pre-embedded pipeline harnesses in aircraft. It includes a main hollow column and a secondary hollow column, with the secondary hollow column connected to the lower end face of the main hollow column. Both the secondary and main hollow columns are equipped with clamping mechanisms, each including a threaded cap and a spring plate. The threaded cap has a threaded sleeve internally connected to it, which is welded to the exterior of both the main and secondary hollow columns. The spring plate is mounted on the exterior of both the main and secondary hollow columns. This tee connector for the installation of pre-embedded pipeline harnesses in aircraft improves the planning flexibility of complex pipeline paths within the aircraft, avoids the signal interference risks that may be caused by traditional harness crossings, ensures reliable fixing of the harness to resist flight vibrations, and avoids insulation damage that may be caused by rigid clamping, thus comprehensively improving the installation efficiency and operational reliability of the pipeline system.

Description

Technical Field

[0001] This utility model relates to the field of tee connector technology, specifically a tee connector suitable for the installation of pre-embedded pipeline harnesses in aircraft. Background Technology

[0002] The confined space inside aircraft and the complex wiring environment present numerous technical bottlenecks in traditional wiring harness fixing methods, such as multi-directional pipeline path planning, vibration environment adaptability, and ease of maintenance. In particular, when it comes to handling cross nodes, existing solutions struggle to balance installation efficiency with long-term operational stability.

[0003] Traditional cabling fixing devices typically employ a single straight-line channel design. When multi-angle cable convergence is required, multiple independent connectors must be used in combination. This structure not only limits the flexibility of the cabling path but also easily generates electromagnetic interference due to cable crossings. Its rigid clamping mechanism is prone to irreversible damage to the cable insulation layer during fixing and cannot accommodate different wire diameters, leading to frequent replacement of components during maintenance. The installation process involves multiple tightening steps, making high-altitude operations difficult. Subsequent adjustments or replacements of cable harnesses often require complete removal of the connectors, significantly increasing aircraft downtime maintenance time and operating costs. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, this utility model provides a tee connector suitable for the installation of pre-embedded pipeline harnesses in aircraft, so as to solve the above-mentioned technical problems.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a tee connector suitable for the installation of pre-embedded pipeline harnesses in aircraft, comprising: a main hollow column and a secondary hollow column, wherein the secondary hollow column is connected to the lower end face of the main hollow column, and both the secondary hollow column and the main hollow column are equipped with clamping mechanisms, wherein the clamping mechanism includes a threaded cap and a spring plate, wherein the threaded cap is internally threaded with a threaded sleeve, the threaded sleeve is welded to the exterior of the main hollow column and the secondary hollow column, and the spring plate is assembled on the exterior of the main hollow column and the secondary hollow column.

[0008] Preferably, the bottom of the spring plate is equipped with a base, which is connected to the outside of the main hollow column and the secondary hollow column. The base is a ring-shaped metal component, which is laser welded to the inner wall of the main hollow column and the secondary hollow column to form a 360° full-circumference welding structure. The welding penetration depth is not less than 2mm to ensure tensile strength.

[0009] Preferably, a pressure plate is embedded on the outside of the spring plate. The pressure plate is a square rubber pad made of fluororubber and is bonded to the surface of the spring plate through a vulcanization process. Its surface is pressed with diamond-shaped anti-slip patterns with a depth of 0.3mm to improve the friction coefficient of the pipeline harness.

[0010] Preferably, the inner cavity of the threaded cap is provided with a threaded groove, which is connected to the external thread of the threaded sleeve. The threaded groove adopts an M12×1.25 fine thread design, the effective engagement length of the thread is not less than 8mm, and the thread surface is plated with a hard chrome layer to enhance wear resistance.

[0011] Preferably, the top of the inner cavity of the threaded cap is designed with a slope, and the top of the spring plate matches the top of the inner cavity of the threaded cap. The slope angle is 45°±1°, and the top of the spring plate is correspondingly machined with a 45° wedge-shaped surface. When the threaded cap is tightened, the slope fit structure can cause the spring plate to produce an elastic deformation of 0.5mm-1.0mm. A metal spring sheet is embedded on the outside of the spring plate. The metal spring sheet is connected to the main hollow column and the secondary hollow column. The metal spring sheet can drive the spring plate to move and then return to its original position.

[0012] Preferably, the inner cavities of the main hollow column and the secondary hollow column are fitted with rubber sleeves, and the outer surfaces of the main hollow column and the secondary hollow column are covered with protective films. The rubber sleeves are made of silicone with a wall thickness of 1.5 mm and have spiral guide grooves processed on the inner wall to guide the wire harness through. The protective film is made of polyimide film, which is coated onto the outer surface of the column through a vacuum hot pressing process, with a thickness of 0.1 mm, and has high temperature resistance of 260℃ and radiation resistance.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a tee connector suitable for the installation of pre-embedded pipeline harnesses in aircraft, which has the following advantages:

[0015] This tee connector, suitable for the installation of pre-embedded pipelines and harnesses in aircraft, provides multi-dimensional optimization for the installation of pre-embedded pipelines through its tee connector structural design. Its vertical through-structure of main and auxiliary hollow columns can simultaneously accommodate the wiring harness layout in three directions, improving the planning flexibility of complex pipeline paths inside the aircraft and avoiding the signal interference risks that may be caused by traditional wiring harness crossings.

[0016] This tee connector, suitable for the installation of pre-embedded pipeline harnesses in aircraft, features a clamping mechanism with a combination of a threaded cap and a spring plate. The rotating motion drives the elastic clamping components to generate progressive pressure, ensuring that the harness is reliably fixed to withstand flight vibrations while avoiding insulation damage that may be caused by rigid clamping.

[0017] This tee connector, suitable for the installation of pre-embedded pipelines and wiring harnesses in aircraft, features a spring plate with elastic deformation characteristics that allows the device to adapt to different wire diameters, reducing the frequency of parts replacement due to differences in wiring harness specifications. During assembly, operators only need to complete the threaded connection to simultaneously achieve wiring harness positioning and connector fixation, simplifying high-altitude operation steps and shortening maintenance time.

[0018] This tee connector, suitable for the installation of pre-embedded pipeline harnesses in aircraft, features a modular clamping assembly that facilitates partial replacement. When a specific harness needs adjustment, the connector can be removed entirely, reducing the downtime required for aircraft maintenance and comprehensively improving the installation efficiency and operational reliability of the pipeline system. Attached Figure Description

[0019] Figure 1 This is a front view of the present utility model;

[0020] Figure 2 This is a plan view of the present invention;

[0021] Figure 3 This is a schematic diagram of the external shape of the clamping mechanism of this utility model;

[0022] Figure 4 This is a partial cross-sectional view of the clamping mechanism of this utility model.

[0023] In the diagram: 1. Main hollow column; 2. Secondary hollow column; 3. Clamping mechanism; 31. Threaded cap; 32. Base; 33. Threaded sleeve; 34. Spring plate; 35. Pressure plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides a technical solution, please refer to [link / reference]. Figure 1 and Figure 2This is a tee connector suitable for installing pre-embedded pipelines and wiring harnesses in aircraft. It includes a main hollow column 1 and a secondary hollow column 2. The secondary hollow column 2 is connected to the lower end face of the main hollow column 1. Both the secondary hollow column 2 and the main hollow column 1 are equipped with clamping mechanisms 3. The clamping mechanism 3 includes a threaded cap 31 and a spring plate 34. The threaded cap 31 has a threaded sleeve 33 connected to its internal thread. The threaded sleeve 33 is welded to the outside of the main hollow column 1 and the secondary hollow column 2. The threaded sleeve 33 is fixed to the middle of the outer wall of the main hollow column 1 and the secondary hollow column 2 using a ring welding process. The welding points are evenly distributed along the axial direction of the column to ensure that the connection strength meets the requirements of the aircraft vibration environment. The spring plate 34 is assembled on the outside of the main hollow column 1 and the secondary hollow column 2. The spring plate 34 is installed by cooperating with the annular groove on the outside of the column through a C-shaped slot. The inner wall of the slot is coated with grease to reduce assembly friction.

[0026] Please see Figure 3 and Figure 4 The bottom of the spring plate 34 is equipped with a base 32, which is connected to the outside of the main hollow column 1 and the secondary hollow column 2. The base 32 is a ring-shaped metal component, which forms a 360° full-circumference welding structure with the inner wall of the main hollow column 1 and the secondary hollow column 2 by laser welding. The welding penetration depth is not less than 2mm to ensure tensile strength.

[0027] The outer side of the spring plate 34 is fitted with a pressure plate 35, which is a square rubber pad. The pressure plate 35 is made of fluororubber and is bonded to the surface of the spring plate 34 through a vulcanization process. Its surface is pressed with diamond-shaped anti-slip patterns with a depth of 0.3mm to improve the friction coefficient of the pipeline harness.

[0028] The inner cavity of the threaded cap 31 is provided with a threaded groove, which is connected to the external thread of the threaded sleeve 33. The threaded groove adopts an M12×1.25 fine thread design, the effective engagement length of the thread is not less than 8mm, and the thread surface is plated with a hard chrome layer to enhance wear resistance.

[0029] The top of the inner cavity of the threaded cap 31 is designed with a slope. The top of the spring plate 34 fits into the top of the inner cavity of the threaded cap 31. The slope angle is 45°±1°. The top of the spring plate 34 is machined with a 45° wedge-shaped surface. When the threaded cap 31 is tightened, the slope fit structure can make the spring plate 34 produce an elastic deformation of 0.5mm-1.0mm. A metal spring is embedded on the outside of the spring plate 34. The metal spring is connected to the main hollow column 1 and the secondary hollow column 2. The metal spring can drive the spring plate 34 to move and then return to its original position.

[0030] The inner cavities of the main hollow column 1 and the secondary hollow column 2 are fitted with rubber sleeves, and the outer surfaces of the main hollow column 1 and the secondary hollow column 2 are covered with protective films. The rubber sleeves are made of silicone with a wall thickness of 1.5mm. The inner walls are machined with spiral guide grooves to guide the wire harness through. The protective film is made of polyimide film, which is wrapped on the outer surface of the column through a vacuum hot pressing process. It has a thickness of 0.1mm and has high temperature resistance of 260℃ and radiation resistance.

[0031] This solution involves installing the wire harness into the inner cavities of the main hollow column 1 and the auxiliary hollow column 2, threading the threaded cap 31 to the threaded sleeve 33, then driving the spring plate 34 to move, thereby clamping and fixing the wire harness through the spring plate 34 and the pressure plate 35, and finally fixing and assembling the main hollow column 1.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. T-joints suitable for installation of pre-embedded conduits and wiring harnesses in aircraft, including: A main hollow column (1) and a secondary hollow column (2), wherein the secondary hollow column (2) is connected to the lower end face of the main hollow column (1), characterized in that: both the secondary hollow column (2) and the main hollow column (1) are equipped with a clamping mechanism (3), the clamping mechanism (3) includes a threaded cap (31) and a spring plate (34), the threaded cap (31) is internally threaded with a threaded sleeve (33), the threaded sleeve (33) is welded to the outside of the main hollow column (1) and the secondary hollow column (2), and the spring plate (34) is assembled on the outside of the main hollow column (1) and the secondary hollow column (2).

2. The tee connector for aircraft pre-embedded pipeline harness installation according to claim 1, characterized in that: The bottom of the spring plate (34) is fitted with a base (32), which is connected to the outside of the main hollow column (1) and the secondary hollow column (2).

3. The tee connector for aircraft pre-embedded conduit harness installation according to claim 1, characterized in that: The outer side of the spring plate (34) is fitted with a pressure plate (35), which is a square rubber pad.

4. The tee connector for aircraft pre-embedded pipeline harness installation according to claim 1, characterized in that: The inner cavity of the threaded cap (31) is provided with a threaded groove, which is connected to the external thread of the threaded sleeve (33).

5. The tee connector for aircraft pre-embedded conduit harness installation according to claim 1, characterized in that: The top of the inner cavity of the threaded cap (31) is designed with a slope, and the top of the spring plate (34) matches the top of the inner cavity of the threaded cap (31).

6. The tee connector for aircraft pre-embedded conduit harness installation according to claim 1, characterized in that: The inner cavities of the main hollow column (1) and the secondary hollow column (2) are fitted with rubber sleeves, and the outer surfaces of the main hollow column (1) and the secondary hollow column (2) are covered with protective films.

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