Connecting fastener for aerospace

Abstract

The utility model discloses a connecting fastener for aerospace, which comprises a lantern ring, a fastening component is arranged in the lantern ring, a fixing component is arranged in the fastening component, the fastening component comprises a round rod, the round rod is fixedly sleeved in the lantern ring in depth, an inserting hole is arranged in the round rod, an internal thread is arranged on the inner wall of the inserting hole, and the fixing component is arranged on the inner wall of the inserting hole. The utility model has the beneficial effects that the screw rod is rotated through the clamping groove, the screw rod rotates and moves downwards to be in threaded connection with the internal thread groove, and then the clamping plate is inserted into the side edge groove and the clamping groove, so that the screw rod is fixed in the insertion hole in the round rod, and the round rod is inserted into the clamping groove. Threads in the internal thread groove and threads in the external thread groove are reversely arranged, the round rod can be fixed by the screw rod and the internal thread groove after being impacted, then the round rod and the nut cannot be loosened to be separated, and connection of the connecting fastener is kept stable.

Description

Technical Field

[0001] The utility model relates to the field of connecting fasteners, in particular to a connecting fastener for aerospace. Background Art

[0002] Fasteners are a type of mechanical parts used for fastening and connection and are extremely widely used. Aviation connection fasteners refer to screws, nuts, pins and hoops used to connect various aircraft components. Their main function is to prevent the aircraft from loosening or vibrating during high-speed flight or in harsh environments, thereby ensuring aviation safety. Aviation connection fasteners need to withstand greater impact pressure when in use.

[0003] Existing aviation connection fasteners are made of high-strength materials and have high impact and compressive strength. However, since the fasteners are prone to loosening after being impacted, the traditional screw and nut mechanism cannot meet the use requirements in the aviation field and easily causes the screw to loosen and detach from the nut. Utility Model Content

[0004] The purpose of the utility model is to provide an aerospace connection fastener to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an aerospace connection fastener, comprising a collar, a fastening assembly is arranged inside the collar, and a fixing assembly is arranged inside the fastening assembly;

[0006] The fastening assembly includes a round rod, the depth of the round rod is fixedly sleeved inside the ring, a socket is provided inside the round rod, an inner wall of the socket is provided with an internal thread, the internal thread of the internal thread is connected to a screw rod, an external thread is provided on the outer wall of the round rod, the external thread is threadedly connected inside an external thread groove, the external thread groove is provided on the upper surface of the nut, and an internal thread groove is provided at the bottom center of the external thread groove.

[0007] Preferably, the fixing assembly includes two side grooves, which are symmetrically opened on both sides of the upper outer wall of the socket, and the same clamping plate is clamped inside the two side grooves, and the clamping groove is opened on the upper surface of the screw.

[0008] Preferably, the screw rod matches the internal thread groove, and the internal thread groove matches the connection between the internal threads.

[0009] Preferably, the threads on the back of the internal thread groove and the external thread groove are arranged in opposite directions.

[0010] Preferably, a through hole is provided on the upper side wall of the clamping plate.

[0011] Compared with the prior art, the beneficial effects of the utility model are: the screw is rotated through the clamping groove, the screw rotates and moves downward to be threadedly connected with the internal thread groove, and then the clamping plate is inserted into the side groove and the clamping groove, so that the screw is fixed in the socket inside the round rod, and the threads inside the internal thread groove and the external thread groove are set in opposite directions. When the round rod is impacted, it will be fixed by the screw and the internal thread groove, so that the round rod and the nut will not loosen and disengage, so that the connection of the fastener remains stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the appearance structure of the utility model;

[0014] Figure 3 This is a schematic diagram of the screw structure of the utility model;

[0015] Figure 4 This is a schematic diagram of the nut structure of the utility model;

[0016] Figure 5 It is a schematic diagram of the round rod structure of the utility model.

[0017] In the figure: 1, collar; 2, fastening assembly; 21, round rod; 22, socket; 23, internal thread; 24, screw; 25, external thread; 26, external thread groove; 27, nut; 28, internal thread groove; 3, fixing assembly; 31, side groove; 32, clamping groove; 33, clamping plate; 34, through hole. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-5 The utility model provides a technical solution: an aerospace connection fastener, comprising a collar 1, a fastening component 2 is arranged inside the collar 1, and a fixing component 3 is arranged inside the fastening component 2;

[0020] The fastening assembly 2 includes a round rod 21, which is fixedly sleeved in the depth of the collar 1. A socket 22 is provided inside the round rod 21, and an internal thread 23 is provided on the inner wall of the socket 22. The internal thread of the internal thread 23 is connected to a screw 24. An external thread 25 is provided on the outer wall of the round rod 21. The external thread 25 is threadedly connected to the inside of an external thread groove 26. The external thread groove 26 is provided on the upper surface of a nut 27. An internal thread groove 28 is provided at the bottom center of the external thread groove 26. The screw 24 is rotated to rotate and move toward the lower end. The screw 24 rotates and moves downward to be threadedly connected to the internal thread groove 28. The internal thread groove 28 and the internal threads of the external thread groove 26 are set in opposite directions. When the round rod 21 is impacted, it will be fixed by the screw 24 and the internal thread groove 28, so that the round rod 21 and the nut 27 will not loosen or disengage, so that the connection of the fastener remains stable.

[0021] Preferably, the fixing assembly 3 includes two side grooves 31, and the two side grooves 31 are symmetrically opened on both sides of the upper outer wall of the socket 22. The inside of the two side grooves 31 is clamped with the same clamping plate 33, and the clamping plate 33 is clamped inside the clamping groove 32. The clamping groove 32 is opened on the upper surface of the screw 24. The clamping plate 33 is inserted into the side grooves 31 and the clamping groove 32 to fix the screw 24 in the socket 22 inside the round rod 21.

[0022] Preferably, the screw rod 24 matches the internal thread groove 28 , and the internal thread groove 28 matches the connection between the internal thread 23 , so that the screw rod 24 can stably rotate into the internal thread groove 28 .

[0023] Preferably, the threads on the back of the internal thread groove 28 and the external thread groove 26 are arranged in reverse, so that the round rod 21 and the screw rod 24 are reversely threadedly connected inside the internal thread groove 28 and the external thread groove 26, so that the round rod 21 and the screw rod 24 are fixed to each other.

[0024] Preferably, a through hole 34 is formed on the upper side wall of the clamping plate 33 , and the clamping plate 33 can be pulled through the through hole 34 to remove the screw rod 24 .

[0025] Specifically, when using the utility model, firstly, the screw rod 24 is threadedly connected in the internal thread 23, so that the screw rod 24 is threadedly connected in the inside of the insertion hole 22 of the round rod 21, and then the round rod 21 is penetrated through the component to be tightened, and then the nut 27 is aligned with the round rod 21, and the nut 27 is rotated to drive the external thread groove 26 to be threadedly connected on the surface of the external thread 25. At this time, the threaded connection between the round rod 21 and the nut 27 plays a tightening role, but when the impact between the round rod 21 and the nut 27 is large, it will cause the round rod 21 to detach from the nut 27, and the round rod 21 is rotated through the clamping groove 32. The screw 24 is squeezed by the internal thread 23 when it rotates and rotates toward the lower end. The screw 24 rotates and moves downward to be threadedly connected with the internal thread groove 28, and then the clamping plate 33 is inserted into the side groove 31 and the clamping groove 32 to fix the screw 24 in the socket 22 inside the round rod 21. The threads inside the internal thread groove 28 and the external thread groove 26 are set in reverse. When the round rod 21 is impacted, it will be fixed by the screw 24 and the internal thread groove 28, so that the round rod 21 and the nut 27 will not loosen or disengage, so that the connection of the fastener remains stable.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An aerospace connection fastener, comprising a collar (1), a fastening assembly (2) being arranged inside the collar (1), and a fixing assembly (3) being arranged inside the fastening assembly (2); Features: The fastening assembly (2) comprises a round rod (21), the round rod (21) is fixedly sleeved in the depth of the collar (1), the round rod (21) is provided with an insertion hole (22), the inner wall of the insertion hole (22) is provided with an internal thread (23), the internal thread of the internal thread (23) is connected to a screw rod (24), the outer wall of the round rod (21) is provided with an external thread (25), the external thread (25) is threadedly connected to the inside of an external thread groove (26), the external thread groove (26) is provided on the upper surface of a nut (27), and an internal thread groove (28) is provided at the bottom center of the external thread groove (26).

2. The aerospace fastener according to claim 1, characterized in that: The fixing assembly (3) comprises two side grooves (31), the two side grooves (31) are symmetrically arranged on both sides of the upper outer wall of the insertion hole (22), the inside of the two side grooves (31) is clamped with a same clamping plate (33), the clamping plate (33) is clamped in the inside of the clamping groove (32), and the clamping groove (32) is arranged on the upper surface of the screw rod (24).

3. The aerospace fastener according to claim 1, characterized in that: The screw rod (24) matches the internal thread groove (28), and the internal thread groove (28) matches the connection between the internal thread (23).

4. The aerospace fastener according to claim 1, characterized in that: The threads of the inner thread groove (28) and the outer thread groove (26) are arranged in opposite directions.

5. The aerospace fastener according to claim 2, characterized in that: A through hole (34) is provided on the upper side wall of the clamping plate (33).

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