WO2011147161A1

WO2011147161A1 - Alighting gear structure for model airplanes

Info

Publication number: WO2011147161A1
Application number: PCT/CN2010/078340
Authority: WO
Inventors: 侯学斌
Original assignee: Hou Xuebin
Priority date: 2010-05-25
Filing date: 2010-11-02
Publication date: 2011-12-01
Also published as: CN201855570U

Abstract

An alighting gear structure for model airplanes comprises a base seat and a tire (4) which is fit on the base seat through an L-shaped central shaft (3). The tire (4) is fit at one end of the central shaft (3), and the other end of the central shaft (3) is inserted and fit in the base seat. A deflector rod (5) extending beyond the outer side of the base seat is arranged fixedly at the end of the central shaft (3) located in the base seat. There are two planes (19, 20) arranged at the portion of the base seat corresponding to the deflector rod (5), which are perpendicular to each other and both are inclined planes. The deflector rod (5) contacts with a first inclined plane (19) when the alighting gear is supported and with a second inclined plane (20) when the alighting gear is retracted. With the alighting gear structure, the tire (4) can be retracted into the body of the airplane when the alighting gear is retracted, thus improving the effect of simulation of the model airplane.

Description

Landing frame structure for aircraft model aircraft

Technical field

The invention discloses a landing gear structure for a RC airplane.

Background technique

The model airplane is the best tool for cultivating children's understanding of space knowledge from an early age, and is widely circulated in people's daily lives. The RC airplane can simulate various states of the real aircraft, including take-off, flight, landing, etc. At present, the landing gear of the traditional RC airplane can only be used for plane sway to simulate retracting, when simulating P-40E, F4-U, when the landing gear of the first type is mounted on the wing of the aircraft, when the landing gear is retracted, the tires on the landing gear are exposed outside the wing, and cannot simulate the real aircraft to collect the landing gear into the wing. Action, the simulation is not high.

Summary of the invention

In view of the above-mentioned prior art RC airplane landing gear that cannot be incorporated into the fuselage, the present invention provides a new landing gear structure that mounts the tire on the landing gear on a central shaft while the central shaft There is a lever on the top. When the landing gear is in motion, the central shaft is rotated by the lever, and the central shaft drives the tire to rotate, so that the tire can be collected into the fuselage.

The technical solution adopted by the present invention to solve the technical problem is: a landing gear structure for a model airplane, including a base and a tire, the tire is mounted on the base through an "L"-shaped center rod, and the tire is mounted at one end of the center rod. The other end of the center rod is inserted into the base, and the central rod is fixedly provided with a lever at one end of the base, and the lever extends out of the base, and two corresponding planes are disposed on the corresponding lever on the base, and two planes are provided. Both are inclined surfaces. When the landing gear is supported, the lever contacts the first inclined surface; when the landing gear is folded, the lever contacts the second inclined surface.

The technical solution adopted by the present invention to solve the technical problem thereof further includes:

The first inclined surface and the second inclined surface have an inclination angle of 45°.

The angle between the first slope and the second slope and the plane of movement of the landing gear is 45°.

The base includes a first base and a second base that are mated together.

The center pole is provided with an elastic support frame.

The center rod is provided with a fixing sleeve.

The base is provided with a first rotating frame and a second rotating frame which are cooperatively mounted. The first rotating frame and the second rotating frame are cooperatively mounted as a rotating frame, and the central shaft is mounted in the rotating frame, and the second rotating frame is mounted on the second rotating frame. There is a lever hole, the lever sticks out from the hole of the lever, the middle shaft is arranged in the middle of the rotating frame, the middle shaft protrudes from both ends of the rotating frame, the central shaft hole is opened in the base, and the middle shaft is inserted in the middle shaft hole Inside.

The cross-section of the lever hole has a "V" shape.

The rotating frame has a rotating support groove, and the rotating support groove is opened at an angle of 135° with the central axis of the rotating frame. The rotating frame is provided with a pulling rod, and one end of the pulling rod is provided with a limiting column extending to both sides. The limiting column is arranged in the rotating support groove.

A finite slot is respectively opened on both sides of the base, and the limiting column is respectively disposed in the limiting slot.

The invention has the beneficial effects that the invention realizes that when the landing gear is retracted, the RC airplane tire can be collected into the fuselage by a simple structure, which greatly increases the simulation degree of the RC airplane.

DRAWINGS

1 is a schematic view showing a three-dimensional structure of a supporting state of the present invention.

2 is a second schematic view of the three-dimensional structure of the supporting state of the present invention.

FIG. 3 is a schematic perspective view showing the assembled structure of the present invention.

Figure 4 is a schematic view showing the structure of the exploded state of the present invention.

Figure 5 is a schematic view showing the structure of the present invention.

Figure 6 is a schematic top plan view of the present invention.

Figure 7 is a schematic cross-sectional view of the A-A of Figure 6;

Figure 8 is a partially enlarged schematic view of the present invention.

In the figure, 1-first base, 2-second base, 3-center pole, 4-tire, 5-bar, 6-support bracket, 7-sleeve, 8-stop slot, 9-limit Column, 10-center shaft, 11-first rotating frame, 12-second rotating frame, 13-rotating support groove, 14-shaft hole, 15-track, 16-bar hole, 17-first cover , 18 - second cover, 19 - first bevel, 20 - second bevel.

detailed description

This embodiment is a preferred embodiment of the present invention, and other principles and basic structures are the same as or similar to those of the present embodiment, and are all within the scope of the present invention.

Referring to FIG. 1 to FIG. 7, the present invention mainly comprises a base and a tire 4. In this embodiment, the base comprises a first base 1 and a second base 2 which are fitted together, and the base is used for The invention is installed on a model airplane. A first rotating frame 11 and a second rotating frame 12 are mounted in the base. The first rotating frame 11 and the second rotating frame 12 are fitted together to form a rotating frame. In this embodiment, the rotating frame 15 is provided with a rotating support. The groove 13 and the rotation support groove 13 are at an angle of 135° with respect to the central axis of the rotating frame. A central shaft 10 is disposed on the rotating frame, and a central shaft hole 14 is defined in the base corresponding to the position of the central shaft 10. The two ends of the central shaft 10 are respectively disposed in the central shaft hole 14, so that the rotating frame can rotate along the central axis 10. . A pull rod 5 is arranged in the base, and the pull rod 5 can be pulled forward and backward. One end of the pull rod 5 is provided with a limit column 9 perpendicular to the pull rod 5, and the limit column 9 is disposed in the rotation support groove 13, and the rotary frame is pushed forward and backward by the pull rod 5. Rotate. In this embodiment, a finite slot 8 is defined at a position corresponding to the limiting post 9 on the base. The limiting post 9 is disposed in the limiting slot 8 and the movement of the limiting post 9 is restricted by the limiting slot 8. The present invention also includes a center rod 3. In this embodiment, the center rod 3 has an "L" shape, the tire 4 is mounted at one end of the center rod 3, and the other end of the center rod 3 is mounted in the rotating frame. The center rod 3 is fixedly provided with a lever 15 at one end of the rotating frame. In this embodiment, the angle between the lever 15 and the plane of the center rod 3 is 45°. The second rotating frame 12 has a lever hole 16 corresponding to the lever 15 . In the embodiment, the lever hole 16 has a "V" shape with an angle of 90°, and the lever 15 protrudes from the lever hole 16 . The lever 15 is swingable within the lever hole 16. The center rod 3 is provided with a fixing sleeve 7. The lower end of the center rod 3 is provided with a support frame 6, which is an elastic support frame, which can serve as a cushioning function when the HM is landing.

In the present invention, the base is provided with a notch corresponding to the lever 15, the two sides of the notch are perpendicular to each other, and the two sides of the vertical are respectively provided with a slope, which is a first slope 19 and a second slope 20, respectively. When the landing gear is supported, the lever 15 is in contact with the first inclined surface 19; when the landing gear is retracted, the lever 15 is in contact with the second inclined surface 20. In this embodiment, the inclination angles of the first inclined surface and the second inclined surface are both 45°, that is, the angle between the first inclined surface and the second inclined surface and the moving plane of the landing gear is 45°.

Referring to FIG. 8, when the invention is in use, the lever 15 is in contact with the first inclined surface 19 when it is supported; during the stowing process, the pull rod 5 is pulled, and at the same time, the limiting post 9 is pulled in the rotating support groove 13. When the rotating frame rotates, the lever 15 is pushed by the first inclined surface 19 while rotating, and when reaching a certain level, the lever 15 is pushed by the second inclined surface 20, and the inclined surface pushes the lever 15 to rotate during the pushing process. , lever 15 The central rod 5 is driven to rotate, and the central rod 5 drives the tire 4 to be turned up, which can be collected into the fuselage of the model airplane; on the contrary, the inclined surface pushes the lever 15 to rotate, the lever 15 drives the center rod 5 to rotate, and the center rod 5 drives the tire 4 Hold up down.

The invention realizes that when the landing gear is retracted, the RC airplane tire can be collected into the fuselage through a simple structure, which greatly increases the simulation degree of the RC airplane.

Claims

A landing gear structure for a RC airplane includes a base and a tire, wherein the tire is mounted on the base by an "L" shaped center rod, the tire is mounted at one end of the center rod, and the other end of the center rod is inserted Mounted in the base, the center rod is fixed at one end of the base with a lever, the lever sticks out of the base, and the corresponding lever on the base is provided with two mutually perpendicular planes, both planes are inclined surfaces, When the falling frame is supported, the lever contacts the first inclined surface; when the landing gear is folded, the lever contacts the second inclined surface.
The landing gear structure for a model airplane according to claim 1, wherein the first inclined surface and the second inclined surface have an inclination angle of 45°.
The landing gear structure for a model aircraft according to claim 2, wherein the angle between the first slope and the second slope and the plane of movement of the landing gear is 45°.
A landing gear structure for a RC airplane according to claim 1 or 2 or 3, wherein said base comprises a first base and a second base that are fitted together.
The landing gear structure for a model airplane according to claim 1 or 2 or 3, wherein the center pole is provided with an elastic support frame.
The landing gear structure for a model airplane according to claim 4, wherein the center pole is provided with a fixing sleeve.
The landing gear structure for a model airplane according to claim 4, wherein the base is provided with a first rotating frame and a second rotating frame that are cooperatively mounted, and the first rotating frame and the second rotating frame cooperate with each other. Installed as a rotating frame, the central shaft is mounted in the rotating frame, the second rotating frame is provided with a lever hole, the lever protrudes from the hole of the lever, the middle shaft is arranged in the middle of the rotating frame, and the central shaft protrudes from both ends of the rotating frame The base shaft has a central shaft hole, and the middle shaft is inserted into the middle shaft hole.
The landing gear structure for a model airplane according to claim 7, wherein the cross-section of the lever hole has a "V" shape.
The landing gear structure for a RC airplane according to claim 7, wherein the rotating frame has a rotating support groove, and the opening direction of the rotating support groove is at an angle of 135° with the central axis of the rotating frame, and the rotating frame There is a pull rod inside, and one end of the pull rod is provided with a limit column extending to both sides, and the limit column is arranged in the rotation support groove.
The landing gear structure for a RC airplane according to claim 9, wherein the base has a finite slot on each side of the base, and the limiting column is respectively disposed in the limiting slot.