Self-locking quick-release connector

Abstract

The utility model belongs to the technical field of aircraft control system design, and particularly relates to a self-locking quick-release connector. The connector comprises a first barrel (1), one end of the first barrel (1) is a clamping end with a plurality of elastic pieces, and each elastic piece (12) is provided with a hemispherical boss (13); one end of the second barrel body (2) is a butt joint end, is in butt joint with a step at the bottom of the clamping end of the first barrel body (1) and accommodates the clamping end of the first barrel body (1), and through holes (21) for accommodating the bosses (13) and slotted holes (22) with axial movement components along the second barrel body (2) are formed in the barrel wall of the second barrel body (2); a screw penetrates through the groove hole (22) and then drives the conical plug (3) to outwards support the elastic piece (12), so that the hemispherical boss (13) of the elastic piece (12) falls into the through hole (21) of the second barrel body (2), and locking of the two barrel bodies is achieved. The self-locking quick-release connector is convenient to assemble, and the assembled connecting rod can bear high push-pull force and torsion force.

Description

Technical Field

[0001] This application belongs to the technical field of aircraft control system design, and particularly relates to a self-locking quick-release joint. Background Art

[0002] In the mechanical control system of an aircraft, based on the connection of moving mechanisms and the transmission of mechanical signals, tie rods or torque rods are required for mechanical displacement, force, and torque transmission. The transmission path is often relatively long and needs to pass through some enclosed structures. When designing connecting rods at these locations, it is very difficult to directly remove a too-long connecting rod, which brings inconvenience to the maintenance and installation of the connecting rod. Utility Model Content

[0003] To solve at least one of the above technical problems, this application designs a self-locking quick-release joint to solve the problem that due to the limitation of the maintenance channel, it is impossible to design a too-long connecting rod during the mechanical displacement and torsional transmission process, and it is necessary to design in sections.

[0004] The self-locking quick-release joint of this application mainly includes:

[0005] A first cylinder, one end of which is a clamping end. The clamping end is provided with a plurality of elastic pieces divided by axially extending notches along the circumferential direction, and each elastic piece is provided with a hemispherical boss.

[0006] A second cylinder, one end of which is a docking end. The docking end is docked on the bottom step of the clamping end of the first cylinder and accommodates the clamping end of the first cylinder. Through holes for accommodating each boss and slot holes having an axial movement component along the second cylinder are provided on the cylinder wall of the second cylinder.

[0007] A plug, which is a conical plug with a large end and a small end. A screw hole is provided on the large end of the plug. A screw passing through the slot hole of the second cylinder and the screw hole of the plug is used to fix the plug at a specified axial position within the second cylinder. The small end of the plug extends into the clamping end of the first cylinder. When the plug moves towards the clamping end, the plug can outwardly support the elastic pieces, so that the hemispherical bosses of the elastic pieces fall into the through holes of the second cylinder.

[0008] Preferably, the clamping end of the first cylinder has at least four elastic pieces.

[0009] Preferably, the hemispherical bosses on two opposite elastic pieces are located at a first axial position of the first cylinder, and the hemispherical bosses on the other two opposite elastic pieces are located at a second axial position different from the first axial position of the first cylinder.

[0010] Preferably, the trend of the slot holes is arranged in a spiral shape.

[0011] Preferably, there are two axially symmetric slot holes on the second cylinder body. Correspondingly, there are two screw holes on the plug head that are circumferentially spaced 180°.

[0012] Preferably, the other end of the first cylinder body opposite to the clamping end is set to be the same as the docking end of the second cylinder body. Similarly, the other end of the second cylinder body that is the same as the docking end is set to be the same as the clamping end of the first cylinder body.

[0013] This application designs a self-locking quick-release joint to split the connecting rod into multiple segments and then dock them after placing them in the appropriate part of the body. The self-locking quick-release joint of this application is convenient to assemble, and the assembled connecting rod can withstand high pushing and pulling forces and torsional forces. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of a preferred embodiment of the self-locking quick-release joint of this application.

[0015] Figure 2 is this application Figure 1 is an exploded schematic structural diagram of the illustrated embodiment.

[0016] Among them, 1 - first cylinder body, 11 - notch, 12 - elastic piece, 13 - hemispherical convex platform, 2 - second cylinder body, 21 - through hole, 22 - slot hole, 3 - plug head, 31 - large end, 32 - small end, 33 - screw hole, 4 - first screw, 5 - second screw. Detailed Embodiment

[0017] To make the purpose, technical solutions, and advantages of the implementation of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below in conjunction with the accompanying drawings in the embodiments of this application. In the drawings, the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The described embodiments are part of the embodiments of this application, not all of them. The embodiments described below by referring to the drawings are exemplary and are intended to explain this application and should not be construed as a limitation of this application. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application. The embodiments of this application will be described in detail below in conjunction with the drawings.

[0018] This application provides a self-locking quick-release joint, as Figure 1 - Figure 2 shown, mainly including:

[0019] The first cylinder body 1, one end is a clamping end, and a plurality of elastic pieces 12 divided by axially extending notches 11 are arranged circumferentially at the clamping end, and hemispherical convex platforms 13 are arranged on each elastic piece 12;

[0020] The second cylinder body 2 has a butt end at one end, and the butt end is butted on the bottom step of the clamping end of the first cylinder body 1 and accommodates the clamping end of the first cylinder body 1. Through holes 21 for accommodating the bosses 13 are provided on the cylinder wall of the second cylinder body 2, and slot holes 22 having a component of axial movement along the second cylinder body 2 are provided;

[0021] The plug 3 is a conical plug having a large end 31 and a small end 32. A screw hole 33 is provided on the large end 31 of the plug 3. A screw passing through the slot hole 22 of the second cylinder body 2 and the screw hole 33 of the plug 3 is used to fix the plug 3 at a specified axial position within the second cylinder body 2. The small end of the plug 3 extends into the clamping end of the first cylinder body 1. When the plug 3 moves towards the clamping end, the plug 3 can outwardly support the elastic piece 12, so that the hemispherical boss 13 of the elastic piece 12 falls into the through hole 21 of the second cylinder body 2.

[0022] In this application, the connecting rod for realizing the functions of mechanical displacement and torque transmission in the original operating system is designed in sections. Corresponding to the above-mentioned first cylinder body 1 and second cylinder body 2, the clamping end of the first cylinder body 1 can be accommodated by the butt end of the second cylinder body 2, and the clamping end of the first cylinder body 1 can clamp the plug 3. The plug 3 is a conical structure. The outer diameter of the large end 31 is the same as the inner diameter of the second cylinder body 2 and is provided with a screw hole 33. The outer diameter of the small end 32 is slightly smaller than the inner diameter of the first cylinder body 1. After the two cylinder bodies are butted, the plug inside is driven to move by a screw to lock the two cylinder bodies. Specifically, one function of the screw is to control the rotation of the plug 3, and the other function is to fix the plug 3. During normal operation, the plug 3 is placed inside the second cylinder body 2, and the screw passes through the slot hole 22 and is connected to the plug 3. The first cylinder body 1 and the second cylinder body 2 are butted, the hemispherical boss 13 of the first cylinder rod 1 and the through hole 21 of the second cylinder body 2 are combined together, and then the plug 3 is controlled to move along the slot hole of the second cylinder body 2, so that the plug 3 abuts against the first cylinder body 1. The conical inclined surface of the plug 3 is used to expand the elastic piece 12, and the hemispherical boss 13 on the elastic piece 12 will fall into the through hole 21 of the second cylinder body 2 to realize the connection between the first cylinder body 1 and the second cylinder body 2. Finally, the screw is tightened to prevent the plug 3 from rotating. When disassembling, loosen the screw, let the plug 3 retreat, and then pull out the first cylinder body 1 from the second cylinder body 2 with force. The butted cylinder bodies can not only bear tensile and compressive forces, but also bear torsional forces.

[0023] In some alternative embodiments, referring to Figure 1 and Figure 2 , the clamping end of the first cylinder body 1 has at least four elastic pieces 12. In alternative embodiments, there may also be more elastic pieces.

[0024] In some alternative embodiments, the hemispherical bosses 13 on two opposite elastic pieces 12 are located at a first axial position of the first cylinder body 1, and the hemispherical bosses 13 on the other two opposite elastic pieces 12 are located at a second axial position of the first cylinder body 1 different from the first axial position.

[0025] In this embodiment, hemispherical bosses 13 are provided at different axial positions of the first cylinder body 1. Correspondingly, through holes 21 are provided at different axial positions of the second cylinder body 2, so that during the twisting process of the two cylinder bodies, the acting forces between them act on different cross-sections of the cylinder bodies, thereby increasing the upper limit of the torsional force bearing capacity.

[0026] In some alternative embodiments, the slot 22 is arranged in a spiral shape. The slot 22 of the present application has at least a component of axial movement along the second cylinder body. For example, arranged in a spiral shape as in this embodiment, in addition to having a component of axial movement, it also has a component of circumferential movement. The plug 3 rotates continuously during the axial movement, so that the plug 3 can be axially moved with less driving force. In an alternative embodiment, the slot 22 can also be arranged completely parallel to the axis.

[0027] In some alternative embodiments, the second cylinder body 2 has two axially symmetric slots 22. Correspondingly, the plug 3 has two screw holes 33 spaced 180° circumferentially. In this embodiment, referring to Figure 1 , the two screw holes 33 are respectively installed with a first screw 4 and a second screw 5.

[0028] In some alternative embodiments, the other end of the first cylinder body 1 opposite to the clamping end is set to be the same as the docking end of the second cylinder body 2. Similarly, the other end of the second cylinder body 2 that is the same as the docking end is set to be the same as the clamping end of the first cylinder body 1.

[0029] In this embodiment, the above-mentioned first cylinder body 1 and second cylinder body 2 are designed to be exactly the same, that is, each cylinder body has the clamping end of the first cylinder body and also has the docking end of the second cylinder body. Thus, the transmission rod of the control system can be split into 3 segments, 5 segments or more segments. After multiple cylinder body segments are installed at the designated positions on the machine body, they are then docked in sequence to form the entire transmission rod.

[0030] The structure of the present application is simple, saves installation space, saves the weight of the mechanism, and is convenient and reliable to assemble.

[0031] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed in the present application should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A self-locking quick-release connector, characterized in that: include: A first cylinder (1), one end of which is a clamping end, the clamping end being provided with a plurality of spring pieces (12) divided by axially extending notches (11) along the circumferential direction, and each spring piece (12) being provided with a hemispherical boss (13); The second cylinder (2) has one end as a butt end, the butt end butts on the bottom step of the clamping end of the first cylinder (1) and accommodates the clamping end of the first cylinder (1), and the cylinder wall of the second cylinder (2) is provided with through holes (21) for accommodating each boss (13) and slots (22) having an axial movement component along the second cylinder (2); The plug (3) is a conical plug having a large end (31) and a small end (32). The large end (31) of the plug (3) has a screw hole (33). A screw passing through the slot hole (22) of the second cylinder (2) and the screw hole (33) of the plug (3) is used to fix the plug (3) at a specified axial position in the second cylinder (2). The small end of the plug (3) extends into the clamping end of the first cylinder (1). When the plug (3) moves toward the clamping end, the plug (3) can support the spring sheet (12) so that the hemispherical boss (13) of the spring sheet (12) falls into the through hole (21) of the second cylinder (2).

2. The self-locking quick-release connector according to claim 1, characterized in that: The clamping end of the first cylinder (1) has at least four spring pieces (12).

3. The self-locking quick-release connector according to claim 2, characterized in that: The hemispherical bosses (13) on two opposing spring sheets (12) are located at a first axial position of the first cylinder (1), and the hemispherical bosses (13) on the other two opposing spring sheets (12) are located at a second axial position of the first cylinder (1) that is different from the first axial position.

4. The self-locking quick-release connector according to claim 1, characterized in that: The slots (22) are arranged in a spiral shape.

5. The self-locking quick-release connector according to claim 1, characterized in that: The second cylinder (2) has two axially symmetrical slots (22), and correspondingly, the plug (3) has two screw holes (33) spaced 180 degrees apart in the circumferential direction.

6. The self-locking quick-release connector according to claim 1, characterized in that: The other end of the first cylinder (1) opposite to the clamping end is arranged to be the same as the butt end of the second cylinder (2); similarly, the other end of the second cylinder (2) which is the same as the butt end is arranged to be the same as the clamping end of the first cylinder (1).

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