Photoelectric induction type miniature undercarriage

Abstract

The utility model discloses a photoelectric induction type miniature undercarriage, and belongs to the technical field of model airplanes and steering engines. The undercarriage comprises an undercarriage shell, an undercarriage rotating piece hinged to the undercarriage shell, a motor, a screw, a sliding block and a photoelectric induction switch, the motor, the screw, the sliding block and the photoelectric induction switch are assembled in the undercarriage shell, and the screw is rotationally assembled in the undercarriage shell and driven by the motor to rotate; the sliding block is connected to the screw in a threaded mode and moves along the screw to drive the undercarriage rotating piece to rotate, and the photoelectric sensing switch is arranged on the side of the screw to sense the position of the sliding block. The utility model has the advantages of reasonable structure, small appearance, light weight, excellent control performance and good reliability; the structure is light and miniaturized, the stroke action is accurate and stable, the collision is not easy, and the service life is prolonged; the damping copper sleeve is used for damping, so that the shock resistance is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of model airplanes and steering gears, and particularly relates to a photoelectric induction type miniature landing gear. Background Art

[0002] The landing gear is an important supporting structure during aircraft takeoff and landing. Accurate and rapid control of retraction and extension and high reliability are important considerations in landing gear design.

[0003] In the field of model aircraft, the landing gear typically consists of a servo system consisting of a housing, a motor, a gear reduction box, a screw-slider transmission mechanism, a control board, and rotating parts. The motor's output power passes through the gear reduction box, where it is converted by the screw-slider transmission mechanism into retraction and extension of the landing gear. The movement is controlled by two impact-type limit switches at the starting position. However, these traditional impact-type limit switches have low reliability and a short service life, seriously affecting the quality and safety of the landing gear and even the model aircraft. Utility Model Content

[0004] The purpose of the embodiment of the present utility model is to provide a photoelectric induction type mini landing gear, which replaces the traditional impact type limit switch with a photoelectric induction type switch, effectively increasing the reliability and service life of the landing gear, thereby solving at least one technical problem involved in the background technology.

[0005] In order to solve the above technical problems, the utility model is achieved as follows:

[0006] An embodiment of the present utility model provides a photoelectric sensing miniature landing gear, comprising a landing gear housing, a landing gear rotating member hinged to the landing gear housing, and a motor, a screw, a slider and a photoelectric sensing switch respectively assembled in the landing gear housing. The screw is rotatably assembled in the landing gear housing and is driven by the motor to rotate. The slider is screwed onto the screw and moves along the screw to drive the landing gear rotating member to rotate. The photoelectric sensing switch is arranged on the side of the screw to sense the position of the slider.

[0007] Optionally, the landing gear housing includes a landing gear upper cover and a landing gear lower cover that cooperates with the landing gear upper cover to form a storage space.

[0008] Optionally, both ends of the screw are rotatably assembled in the landing gear housing via bearings.

[0009] Optionally, the screw is connected to the motor via a coupling.

[0010] Optionally, a reducer is further included between the coupling and the motor.

[0011] Optionally, it further includes a control mainboard arranged in the landing gear housing, and the photoelectric sensor switch is configured on the control mainboard.

[0012] Optionally, there are two photoelectric sensor switches, and the two photoelectric sensor switches are spaced apart along the length direction of the screw.

[0013] Optionally, a shock-absorbing copper sleeve is provided between the landing gear upper cover and the landing gear bottom cover for shock absorption.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The landing gear provided by the utility model is used in the field of model aircraft and steering gear, with reasonable structure, compact appearance, light weight, excellent control performance and good reliability.

[0016] 2. The landing gear provided by the utility model uses a photoelectric induction travel switch and a double copper sleeve for shock absorption, with a lightweight and miniaturized structure. Different from the impact-type travel switch used in traditional model aircraft landing gear, the travel action is accurate and smooth, not easy to be damaged by collision, and the service life is extended.

[0017] 3. The landing gear provided by the utility model uses a shock-absorbing copper sleeve for shock absorption, and has good impact resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. Among them:

[0019] Figure 1 A schematic diagram of the explosion structure of the photoelectric induction type miniature landing gear provided by the present utility model;

[0020] Figure 2 This is a schematic cross-sectional view of the photoelectric induction type miniature landing gear provided by the utility model. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] The terms "first," "second," and the like in the specification and claims of the present invention are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present invention can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects. For example, the first object can be one or more. In addition, the term "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0023] See Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a photoelectric sensing miniature landing gear, comprising a landing gear shell 1, a landing gear rotating member 2 hinged to the landing gear shell 1, and a motor 3, a screw 4, a slider 5 and a photoelectric sensing switch 6 respectively assembled in the landing gear shell 1.

[0024] The landing gear housing 1 includes a landing gear upper cover 11 and a landing gear lower cover 12 that cooperates with the landing gear upper cover 11 to form a storage space.

[0025] The screw rod 4 is rotatably mounted in the landing gear housing 1 and is driven by the motor 3 to rotate.

[0026] Specifically, both ends of the screw rod 4 are rotatably assembled in the landing gear housing 1 through bearings 7 .

[0027] The screw 4 is connected to the motor 3 via a coupling 8 .

[0028] A speed reducer 9 is further provided between the coupling 8 and the motor 3 .

[0029] The slider 5 is screwed onto the screw rod 4 and moves along the screw rod 4 to drive the landing gear rotating member 2 to rotate.

[0030] The photoelectric sensor switch 6 is arranged on the side of the screw rod 4 to sense the position of the slider 5. In this way, when the slider 5 moves along the screw rod 4 to the sensing position of the photoelectric sensor switch 6, the slider 5 stops moving.

[0031] The photoelectric induction type mini landing gear further includes a control mainboard 10 disposed in the landing gear housing 1 , and the photoelectric induction switch 6 is configured on the control mainboard 10 .

[0032] Specifically, there are two photoelectric sensor switches 6 , and the two photoelectric sensor switches 6 are spaced apart along the length direction of the screw rod 4 .

[0033] The photoelectric induction type mini landing gear further includes a shock-absorbing copper sleeve 13 provided between the landing gear upper cover 11 and the landing gear bottom cover 12 for shock absorption. By providing the shock-absorbing copper sleeve 13, shock absorption can be effectively achieved and the internal structure of the landing gear can be protected.

[0034] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0035] Furthermore, it should be noted that the scope of the methods and systems in the embodiments of the present invention is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in reverse order depending on the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0036] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present invention and the claims, all of which are within the protection of the present invention.

Claims

1. A photoelectric induction type mini landing gear, characterized in that: The landing gear comprises a landing gear housing, a landing gear rotating member hinged to the landing gear housing, and a motor, a screw, a slider, and a photoelectric sensor switch respectively assembled in the landing gear housing. The screw is rotatably assembled in the landing gear housing and driven by the motor to rotate. The slider is screwed to the screw and moves along the screw to drive the landing gear rotating member to rotate. The photoelectric sensor switch is arranged on the side of the screw to sense the position of the slider.

2. The photoelectric induction type mini landing gear according to claim 1, characterized in that: The landing gear housing includes a landing gear upper cover and a landing gear lower cover which cooperates with the landing gear upper cover to form a storage space.

3. The photoelectric induction type mini landing gear according to claim 1, characterized in that: Both ends of the screw are rotatably assembled in the landing gear housing through bearings.

4. The photoelectric induction type mini landing gear according to claim 1, characterized in that: The screw is connected to the motor via a coupling.

5. The photoelectric induction type mini landing gear according to claim 4, characterized in that: It also includes a speed reducer arranged between the coupling and the motor.

6. The photoelectric induction type mini landing gear according to claim 1, characterized in that: It also includes a control mainboard arranged in the landing gear housing, and the photoelectric sensor switch is configured on the control mainboard.

7. The photoelectric induction type mini landing gear according to claim 6, characterized in that: There are two photoelectric sensing switches, and the two photoelectric sensing switches are spaced apart along the length direction of the screw.

8. The photoelectric induction type mini landing gear according to claim 2, characterized in that: It also includes a shock-absorbing copper sleeve arranged between the landing gear upper cover and the landing gear bottom cover for shock absorption.

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