A pull-out plug locking and limiting mechanism

Abstract

The application discloses a falling plug-in locking limiting mechanism, which comprises a base, left connecting rods, right connecting rods, a connector mounting seat and an electric connector. The left connecting rods and the right connecting rods are located on the two sides of the connector mounting seat, and the upper parts of the left connecting rods and the right connecting rods are connected with the connector mounting seat respectively. The lower parts of the left connecting rods and the right connecting rods are connected with the base respectively. The electric connector is mounted on the connector mounting seat. A locking limiting pin is arranged on the connector mounting seat and inside the electric connector. A spring is further arranged on the base and located on the side of the left connecting rod. The base comprises a flat plate, vertical plates, single fixed ear plates and double fixed ear plates which are arranged on the flat plate respectively, and the single fixed ear plates and the double fixed ear plates are located on the same side of the vertical plates. The mechanism satisfies the three functions of the electric connector falling plug-in, the aircraft locking and unlocking and the aircraft limiting, thereby reducing the design pressure of the aircraft and ensuring the reliability of the launching process.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of mechanical design and manufacturing, and particularly relates to a falling plug-in locking and limiting mechanism. BACKGROUND

[0002] In recent years, light and micro aircraft have begun to emerge, and the integration degree of the light and micro aircraft is much higher than that of traditional aircraft. The plug-in and falling mechanism of the electrical connector is designed separately from the locking and limiting mechanism in the traditional aircraft.

[0003] A falling plug-in mechanism with the publication number CN207250846U, which is provided with a unique structure, i.e. a base, a plug mounting seat, a left connecting rod and a push rod. One end of the push rod is rotatably fixed in the base, and the other end of the push rod is rotatably fixed at the bottom of the left connecting rod. The left connecting rod is an L-shaped bending structure, and the horizontal ends of the bottom of the left connecting rod are rotatably fixed to the push rod and the base, respectively. The upper end of the left connecting rod is rotatably fixed to the plug mounting seat. The middle segment of the push rod is provided with a spring. The falling plug-in mechanism can effectively solve the problem of miniaturization of the falling plug-in mechanism, and meet the technical development trend of the track launching aircraft.

[0004] However, in addition to the falling plug-in, the aircraft also needs locking and limiting functions during flight. The previous separate design method will cause many technical difficulties in the design of micro aircraft. Due to the small size and light weight of the micro aircraft, the tail engine is no longer suitable as an interface for the locking and limiting mechanism. Some small disturbances during the launching process may cause the launching to fail.

[0005] Therefore, it is urgent to develop a falling plug-in locking and limiting mechanism, which can realize the radial pull-out of the electrical connector and the launching device, the locking of the aircraft and the limiting of the aircraft, so as to reduce the design pressure of the aircraft and ensure the reliability of the launching process. SUMMARY

[0006] In order to solve the above problems, the present application aims to provide a falling plug-in locking and limiting mechanism,

[0007] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0008] A falling plug-in locking and limiting mechanism, characterized in that: comprising a base, a left connecting rod, a right connecting rod, a connector mounting seat and an electrical connector, the left connecting rod and the right connecting rod are located on both sides of the connector mounting seat, and the upper parts of the left connecting rod and the right connecting rod are connected with the connector mounting seat, respectively, and the lower parts of the left connecting rod and the right connecting rod are connected with the base, respectively, the electrical connector is installed on the connector mounting seat, and a locking and limiting pin is arranged on the connector mounting seat inside the electrical connector, and a spring is further arranged on the base at the side of the left connecting rod.

[0009] The base comprises a flat plate, on which a vertical plate, a single fixing ear plate and a double fixing ear plate are respectively arranged, and the single fixing ear plate and the double fixing ear plate are located on the same side of the vertical plate.

[0010] The guiding sleeve is installed on the single fixing ear plate through a first rotating shaft at one end, and is provided with a guiding shaft at the other end, the guiding shaft is installed on the lower end of the left connecting rod through a second rotating shaft, and the spring is sleeved on the guiding sleeve and located between the first rotating shaft and the second rotating shaft.

[0011] The vertical plate is provided with a hollowed-out part, the lower part of the right connecting rod is located in the hollowed-out part of the vertical plate, and is connected with the vertical plate through a locking shaft and a fourth rotating shaft, and the lower part of the left connecting rod is rotatably installed on the double fixing ear plate through a third rotating shaft.

[0012] The upper part of the left connecting rod is connected with the left side surface of the front part of the connector mounting seat through a screw cooperating sleeve, and the upper part of the right connecting rod is connected with the front right side surface of the rear part of the connector mounting seat through a screw cooperating sleeve.

[0013] The electric connector is installed on the connector mounting seat through a screw

[0014] The flat plate is provided as a U-shaped structure.

[0015] The flat plate is provided as a U-shaped structure.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] 1. The parts are connected through the connecting piece, and the three functions of falling off pulling, locking and limiting are integrated, the mechanism is small in size and simple in structure, the design pressure is effectively reduced, and the installation and adjustment are facilitated.

[0018] 2. The spring is sleeved on the guiding sleeve and located between the first rotating shaft and the second rotating shaft, so that the spring provides an accelerating falling force during the falling process of the mechanism, the sleeve restricts the direction of the force, the falling speed is fast, the direction is accurate, the error is reduced, and the efficiency is improved.

[0019] 3. The right connecting rod drives the locking shaft to move by moving the locking limiting pin, the locking shaft is sheared and broken under stress to complete unlocking, the simple mechanical structure completes unlocking, the unlocking force is controllable and adjustable, and the mechanical safety is improved.

[0020] 4. The flat plate is provided as a U-shaped structure, sufficient space is provided for the mechanism to fall, interference is avoided to cause the falling to be not in place, and the U-shaped structure can also be used as an assembly observation port; the recess below the spring is used as an operation window for assembling and adjusting the locking pin and the electric connector, and the recess is better arranged for the cable, which is beneficial to the falling of the mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the specific embodiments of the present application, the drawings needed in the following embodiment description will be briefly introduced. Obviously, the drawings described below only constitute some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0022] Figure 1 The structure diagram of the falling plug-in locking limiting mechanism in the present application is shown in the figure.

[0023] Figure 2 The structure diagram of the relative surface in the present application is shown in the figure. Figure 1

[0024] Figure 3 The base structure diagram of the falling plug-in locking limiting mechanism in the present application is shown in the figure.

[0025] Figure 4 The structure disassembly diagram of the falling plug-in locking limiting mechanism in the present application is shown in the figure.

[0026] Figure 5 The partial sectional view of the falling plug-in locking limiting mechanism in the present application is shown in the figure.

[0027] In the figure, 1 is a first rotating shaft 1; 2 is a guide sleeve; 3 is a spring; 4 is a guide shaft; 5 is a second rotating shaft; 6 is a base; 61 is a single fixed ear plate; 62 is a double fixed ear plate; 63 is a flat plate; 64 is a vertical plate; 7 is a third rotating shaft; 8 is a left connecting rod; 9 is a connector mounting seat; 10 is an electrical connector; 11 is a locking limiting pin; 12 is a right connecting rod; 13 is a locking shaft; and 14 is a fourth rotating shaft. DETAILED DESCRIPTION

[0028] The present application will be further described below in conjunction with the drawings and specific embodiments, but it should not be understood that the scope of the subject matter described in the present application is limited to the following embodiments. Any modifications, replacements and changes made according to the ordinary technical knowledge and common practice in the art without departing from the technical idea of the present application are included in the scope of the present application.

[0029] Referring to Figures 1-5 A falling plug-in locking limiting mechanism, characterized in that it comprises a base 6, a left connecting rod 8, a right connecting rod 12, a connector mounting seat 9 and an electrical connector 10. The left connecting rod 8 and the right connecting rod 12 are located on both sides of the connector mounting seat 9, and the upper parts of the left connecting rod 8 and the right connecting rod 12 are connected with the connector mounting seat 9 respectively. The lower parts of the left connecting rod 8 and the right connecting rod 12 are connected with the base 6 respectively. The electrical connector 10 is installed on the connector mounting seat 9, and a locking limiting pin 11 is arranged inside the electrical connector 10 on the connector mounting seat 9. A spring 3 is further arranged on the base 6 at the side of the left connecting rod 8. ​

[0030] The base 6 comprises a flat plate 63, on which a vertical plate 64, a single fixing lug plate 61 and a double fixing lug plate 62 are respectively arranged, and the single fixing lug plate 61 and the double fixing lug plate 62 are located on the same side of the vertical plate 64.

[0031] It also comprises a guide sleeve 2, one end of which is installed on the single fixing lug plate 61 through a first rotating shaft 1, and the other end is provided with a guide shaft 4, which is installed at the lower end of the left connecting rod 8 through a second rotating shaft 5. A spring 3 is sleeved on the guide sleeve 2 and located between the first rotating shaft 1 and the second rotating shaft 5, which is to increase the reliability of the fallen stalks, and at the same time, the spring 3 provides an accelerating force for the fallen stalks. The guide sleeve 2 is used to constrain the direction of the force.

[0032] The vertical plate 61 is provided with a hollow part, and the lower part of the right connecting rod 12 is located in the hollow part of the vertical plate 61 and connected with the vertical plate 61 through a locking shaft 13 and a fourth rotating shaft 14. The lower part of the left connecting rod 8 is rotatably installed on the double fixing lug plate 62 through a third rotating shaft 7.

[0033] The upper part of the left connecting rod 8 is connected with the front left side of the connector mounting seat 9 through a screw fitting sleeve, and the upper part of the right connecting rod 12 is connected with the front right side of the connector mounting seat 9 through a screw fitting sleeve.

[0034] The electric connector 10 is installed on the connector mounting seat through a screw.

[0035] The flat plate 63 is arranged in a U-shaped structure, which mainly provides sufficient space for the mechanism to flow out the fallen stalks, avoids the interference caused by the fallen stalks, and at the same time, serves as an assembly observation port and an electric connector assembly adjustment operation window.

[0036] A groove is arranged below the spring 3 on the flat plate 63, which serves as an operation window for the assembly and adjustment of the locking pin and the electric connector.

[0037] When the cable is laid, it is passed from the U-shaped port to the lower bottom surface of the base, and then passed back from the groove port, which can ensure that the cable is always in a normal state, which is beneficial to the mechanism to fall.

[0038] Example 1: Refer to Figure 4 When the aircraft is subjected to a backward overload force, the force acts on the locking limit pin 11, the locking limit pin 11 transmits the force to the mounting seat 9, the mounting seat 9 acts on the right connecting rod 12, and the right connecting rod 12 acts on the base 6. Since the base 6 is fixed, the aircraft will not be displaced backward, which plays a limiting role.

[0039] When the aircraft launches and moves forward, i.e., when it is subjected to a forward force, the force acts on the locking limit pin 11. The locking limit pin 11 is stressed and drives the mounting base 9 to move. The mounting base 9 acts on the right connecting rod 12, and the right connecting rod applies a thrust to the locking shaft 13. When the load condition is met, the locking shaft 13 undergoes shear failure along a predetermined section, and the aircraft unlocks. When the entire structure is not under stress, the limit pin 11 and the locking shaft 13 perform the locking function.

[0040] When the aircraft launches and moves forward, i.e., when it is subjected to a forward force, the force acts on the locking limit pin 11. The locking limit pin 11 is subjected to force and drives the mounting base 9 to move. The mounting base 9 acts on the right connecting rod 12, and the right connecting rod applies a thrust to the locking shaft 13, unlocking the aircraft. Then, the electrical connector 10 and the locking limit pin 11 together drive the left connecting rod 8 and the right connecting rod 12 to rotate around the third rotating shaft 7 and the fourth rotating shaft 14 respectively. The guide sleeve 2 rotates around the first rotating shaft 1. The mounting base 9, the electrical connector 10, and the locking limit pin 11 move simultaneously along the axial and radial directions, disengaging the plug and socket, unlocking and separating them, thus achieving disengagement and plugging / unplugging.

[0041] The locking limit pin, under the action of force, plays the role of locking and unlocking. This mechanism simultaneously satisfies three functions: connector disconnection and plugging, aircraft locking and unlocking, and aircraft limiting, which reduces the design pressure of the aircraft and ensures the reliability of the launch process.

[0042] The foregoing has provided a detailed description of the release and insertion locking limiting mechanism provided by the present invention. Specific examples have been used to illustrate the structure and working principle of the invention. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A disengagement insertion / removal locking and limiting mechanism, characterized in that: The device includes a base (6), a left connecting rod (8), a right connecting rod (12), a connector mounting base (9), and an electrical connector (10). The left connecting rod (8) and the right connecting rod (12) are located on both sides of the connector mounting base (9). The upper parts of the left connecting rod (8) and the right connecting rod (12) are connected to the connector mounting base (9), and the lower parts of the left connecting rod (8) and the right connecting rod (12) are connected to the base (6). The electrical connector (10) is mounted on the connector mounting base (9). A locking limit pin (11) is provided on the connector mounting base (9) inside the electrical connector (10). A spring (3) is also provided on the base (6) on one side of the left connecting rod (8). The base (6) includes a flat plate (63), on which a vertical plate (64), a single fixed ear plate (61) and a double fixed ear plate (62) are respectively provided. The single fixed ear plate (61) and the double fixed ear plate (62) are located on the same side of the vertical plate (64). A guide sleeve (2) is connected to the base (6) through a first rotating shaft (1) and a second rotating shaft (5). One end of the guide sleeve (2) is mounted on the single fixed ear plate (61) via the first rotating shaft (1), and the other end is provided with a guide shaft (4). The guide shaft (4) is mounted on the lower end of the left connecting rod (8) via the second rotating shaft (5). The spring (3) is fitted on the guide sleeve (2) and located between the first rotating shaft (1) and the second rotating shaft (5). The guide sleeve (2) and the spring (3) cooperate to control the direction and speed of the fall. The vertical plate (64) is provided with a hollowed-out part. The lower part of the right connecting rod (12) is located in the hollowed-out part of the vertical plate (64) and is connected to the vertical plate (64) through the locking shaft (13) and the fourth rotating shaft (14). The lower part of the left connecting rod (8) is rotatably mounted on the double fixed ear plate (62) through the third rotating shaft (7). The locking shaft (13) is used for locking and unlocking mechanisms, and controllable unlocking is achieved by shearing and breaking. The base (6) is connected to the left connecting rod (8) and the right connecting rod (12) respectively through the third rotating shaft (7) and the fourth rotating shaft (14). The first rotating shaft (1), the second rotating shaft (5), the third rotating shaft (7) and the fourth rotating shaft (14) constitute a rotating shaft connection mechanism to ensure coordinated movement between the components. The base (6) is used to support the left connecting rod (8), the right connecting rod (12) and the rotating shaft connection mechanism, and to provide movement space. The rotating shaft connection mechanism is used to ensure coordinated movement between the components.

2. The disengagement insertion / removal locking and limiting mechanism according to claim 1, characterized in that: The upper part of the left connecting rod (8) is connected to the front left side of the connector mounting base (9) by a screw and sleeve, and the upper part of the right connecting rod (12) is connected to the rear right side of the connector mounting base (9) by a screw and sleeve.

3. The disengagement insertion / removal locking and limiting mechanism according to claim 1, characterized in that: The electrical connector (10) is mounted on the connector mounting base (9) by screws.

4. The disengagement insertion / removal locking and limiting mechanism according to claim 1, characterized in that: The flat plate (63) is configured as a U-shaped structure.

5. The disengagement insertion / removal locking and limiting mechanism according to claim 1, characterized in that: A groove is provided on the plate (63) below the spring (3).

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