Aircraft cabin section connecting mechanism

Abstract

The utility model belongs to the technical field of aircraft accessory structure design, and particularly relates to an aircraft cabin section connecting mechanism. The device comprises a taper pin screw bushing, a taper pin bolt, a flange nut, a bushing and a nut, the taper pin screw bushing is mounted in the first cabin section through a nut, the flange nut is mounted in the second cabin section through a screw, the bushing is also mounted in the second cabin section, and the flange nut and the bushing are coaxially mounted; when the cabin sections are butted, the taper pin screw bushing is fixed on the first cabin section, one end, provided with the taper pin hole, of the taper pin screw bushing is inserted into a corresponding hole of the butting frame of the second cabin section, then the taper pin bolt is screwed into the flange nut, the conical surface of the taper pin bolt is in contact with the conical surface hole of the taper pin screw bushing, and the first cabin section and the second cabin section are tensioned while the first cabin section and the second cabin section are tightened. Therefore, tight connection of the two cabin sections is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of aircraft accessory structure design, in particular to an aircraft cabin section connection mechanism. Background Art

[0002] To achieve docking and detachable aircraft cabins, common connection methods include socket joints and disc joints. However, the socket joint method is not suitable for cabins with irregular cross-sections, while the disc joint requires slots in both the front and rear docking frames, and bolts are arranged in the direction of the cabin, which limits operating space and reduces disassembly efficiency. Utility Model Content

[0003] Purpose of the utility model: In view of the above-mentioned existing technical conditions, the utility model is designed to provide an aircraft cabin quick-disassembly mechanism, the purpose of which is to reduce the opening size of the cabin docking frame, enhance the strength and rigidity of the docking frame, and improve the disassembly efficiency of the cabin.

[0004] Technical solution: An aircraft cabin section connection mechanism, comprising a tapered pin screw bushing, a tapered pin bolt, a flange nut, a bushing and a nut;

[0005] The conical pin screw bushing is installed in the first compartment through a nut, the flange nut is installed in the second compartment through a screw, and the bushing is also installed in the second compartment, and the flange nut and the bushing are installed coaxially;

[0006] When the cabin sections are docked, the tapered pin screw bushing is fixed on the first cabin section, and the end of the tapered pin screw bushing with the tapered pin hole is inserted into the corresponding hole of the docking frame of the second cabin section. Then the tapered pin bolt is screwed into the flange nut, and the conical surface of the tapered pin bolt contacts the conical surface of the tapered pin screw bushing. While tightening, the first cabin section and the second cabin section are tightened, thereby achieving a tight connection between the two cabin sections.

[0007] Furthermore, the tapered pin screw bushing is divided into a threaded section and a straight section, wherein a tapered hole is opened in the straight section.

[0008] Furthermore, the slope of the tapered hole is 1:10.

[0009] Furthermore, the tapered pin bolt is divided into a threaded section, a tapered surface section and an equal straight section, which cooperate with the tapered pin screw bushing.

[0010] Furthermore, the tapered pin screw bushing and the first compartment are fixed together by nuts.

[0011] Furthermore, when fixing with a nut, a flat washer and a spring washer are provided between the nut and the first compartment.

[0012] Technical Effect: This utility model achieves a tight connection between aircraft cabin sections. The mechanism achieves this by engaging the taper pin with the taper pin hole. The fastening bolts are located normal to the cabin section, providing ample operating space and facilitating quick assembly and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a cross-sectional view of the utility model mechanism;

[0014] Figure 2 This is the axial view of the mechanism of the utility model;

[0015] Among them, flange nut 1, tapered pin screw bushing 2, tapered pin bolt 3, bushing 4, front compartment section 5, flat washer 6, nut 7, spring washer 8, rear compartment section 9, screw 10. DETAILED DESCRIPTION

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings or specific implementation cases. It should be noted that some (but not all) of the disclosed examples are shown in the drawings. In fact, many different examples can be described and these examples should not be understood as being limited to the examples set forth herein. On the contrary, describing these examples makes the positive effects of the present invention more apparent, and any parts not detailed herein are considered to be well-known techniques or conventional technical means in the art.

[0017] See attached Figure 1 、 Figure 2 ,like Figure 1 As shown, the entire mechanism consists of a flange nut 1, a taper pin screw bushing 2, a taper pin bolt 3, a bushing 4, a front compartment 5, a flat washer 6, a nut 7, a spring washer 8, and a rear compartment 9. The flange nut 1 is secured to the front compartment 5 by screws 10. The bushing 4 and the front compartment 5 have an interference fit, while the taper pin screw bushing 2 and both the front compartment 5 and the rear compartment 9 have a precision fit. The taper pin screw bushing 2 and the rear compartment 9 are secured together with nuts.

[0018] Start installing the front flange nut 1 and bushing 4 fixed in the front compartment 5, and the tapered pin screw bushing 2 installed in the rear compartment 9.

[0019] During installation, align the front and rear cabin sections, insert the medium straight section of the tapered pin screw bushing 2 into the corresponding hole in the front cabin section 5, and then insert the tapered pin bolt 3 into the tapered hole of the medium straight section of the tapered pin screw bushing 2. The slope of the tapered hole here is 1:10 and self-locking. Then tighten the tapered pin bolt 3. Under the action of the thread, the tapered pin bolt 3 moves downward, and the straight section is inserted into the bushing 4, bearing the axial force, driving the tapered pin screw bushing 2 and the rear cabin section 9 to move forward. When tightened to the predetermined torque, the tapered pin bolt 3 reaches the final position, tightening the front and rear cabin sections to complete the cabin connection.

[0020] The above specific implementation methods or cases are only used to explain the technical solutions of the utility model and are not intended to limit the present application. Any parts not described in detail are regarded as conventional technical means or common knowledge in the field. It can be understood by ordinary technicians in this field that: based on the design concept of the present application, it should be possible to adaptively modify the technical solutions recorded in the aforementioned implementation methods, or to replace some or all of the technical features therein by equivalents. These modifications, equivalent replacements, and adaptively improved technical solutions do not depart from the technical essence of the utility model and should all be covered by the protection scope of the present application.

Claims

1. An aircraft cabin section connection mechanism, characterized in that: Contains taper pin screw bushing, taper pin bolt, flange nut, bushing and nut; The tapered pin screw bushing is installed in the first compartment through a nut, the flange nut is installed in the second compartment through a screw, and the bushing is also installed in the second compartment, and the flange nut and the bushing are installed coaxially; When the cabin sections are docked, the tapered pin screw bushing is fixed on the first cabin section, and the end of the tapered pin screw bushing with the tapered pin hole is inserted into the corresponding hole of the docking frame of the second cabin section. Then the tapered pin bolt is screwed into the flange nut, and the conical surface of the tapered pin bolt contacts the conical surface of the tapered pin screw bushing. While tightening, the first cabin section and the second cabin section are tightened, thereby achieving a tight connection between the two cabin sections.

2. The aircraft compartment connection mechanism according to claim 1, wherein: The tapered pin screw bushing is divided into a threaded section and a straight section, wherein the straight section has a tapered hole.

3. The aircraft compartment connection mechanism according to claim 2, wherein: The slope of the tapered hole is 1:

10.

4. The aircraft compartment connection mechanism according to claim 1, wherein: The taper pin bolt is divided into a threaded section, a tapered surface section and an equal straight section, which cooperate with the taper pin screw bushing.

5. The aircraft cabin section connection mechanism according to claim 1, wherein: The conical pin screw bushing and the first compartment are fixed together with nuts.

6. The aircraft cabin section connection mechanism according to claim 5, characterized in that: When fixing with a nut, a flat washer and a spring washer are further provided between the nut and the first compartment.

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