Model plane power connecting shaft structure

Abstract

The utility model belongs to the technical field of aircrafts, and particularly relates to a model plane power connecting shaft structure which comprises an upper connecting rod and a lower connecting rod, the upper connecting rod comprises a chuck, inserting pieces are annularly distributed at the bottom of the chuck, the lower connecting rod comprises a fixing disc, and a clamping protrusion extending towards the center of the fixing disc is arranged on the periphery of the fixing disc. The inner circumferential side of the fixing disc is provided with inserting grooves corresponding to the inserting pieces, the upper connecting rod and the lower connecting rod are oppositely arranged up and down, the inserting pieces on the upper connecting rod are correspondingly inserted into the inserting grooves of the lower connecting rod, and the clamping protrusions on the lower connecting rod are buckled on the chuck, so that the upper connecting rod and the lower connecting rod form a detachable structure. Annularly distributed connecting ribs are arranged at the top of the fixed disc, and each connecting rib is in a convex arch shape with a high middle part and two low sides. The upper connecting rod and the lower connecting rod which are separated from each other can be connected more tightly, the overall structure is greatly improved, and meanwhile the capability of coping with airflow fluctuation is enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of aircraft, and in particular relates to a power connecting shaft structure of a model aircraft. Background Art

[0002] Aircraft include unmanned aerial vehicles and manned aerial vehicles. Unmanned aerial vehicles, referred to as "drones", are unmanned aircraft controlled by radio remote control devices or embedded programs. Autogyro is a rotorcraft that uses the relative airflow during forward flight to blow the rotor to rotate to generate lift. Its forward force is directly provided by the propeller driven by the engine.

[0003] Problems with existing technologies:

[0004] A Chinese patent with publication number CN208377078U discloses an aircraft linkage mechanism and an aircraft, which optimizes the connection structure of the rotating shaft and the drive motor that may be damaged during the flight of the aircraft, thereby improving the fall resistance of the aircraft. However, the following defects still exist: the connection between the connection structures on the aircraft mentioned in the above patent is too weak, and the overall structural integrity of the separate connecting rotating shaft needs to be improved, which makes the airflow fluctuation have a greater impact on the rotor. Utility Model Content

[0005] The utility model aims to provide a model aircraft power connecting shaft structure, which can realize a tighter connection relationship between separate upper and lower connecting rods, greatly improve the overall structural performance, and enhance the ability to cope with airflow fluctuations.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A model airplane power connecting shaft structure comprises an upper connecting rod and a lower connecting rod, wherein the upper connecting rod comprises a chuck, and inserts are distributed in an annular shape at the bottom of the chuck;

[0008] The lower connecting rod comprises a fixed plate, the peripheral edge of the fixed plate is provided with a clamping protrusion extending toward the center of the fixed plate, and the inner peripheral side of the fixed plate is provided with a slot corresponding to the inserting piece;

[0009] The upper connecting rod and the lower connecting rod are arranged opposite to each other up and down, the insert on the upper connecting rod is correspondingly inserted into the slot of the lower connecting rod, and the convex on the lower connecting rod is buckled on the chuck, so that the upper connecting rod and the lower connecting rod form a detachable structure.

[0010] The top of the fixing plate is provided with annularly distributed connecting ribs, and the connecting ribs are in the shape of a raised arch with a high middle portion and low sides.

[0011] The bottom of the chuck is provided with an annularly distributed scooping groove, and the scooping groove is located on the inner side of the insert;

[0012] The scooping groove is adapted to be opened by the connecting rib and is adapted to be embedded with the connecting rib.

[0013] A protruding plug post is arranged at the center of the bottom of the chuck.

[0014] The middle part of the annularly distributed connecting ribs forms a cavity adapted to accommodate the plug column;

[0015] When the upper connecting rod and the lower connecting rod are relatively buckled, the plug post is located inside the cavity.

[0016] The outer ring wall of the fixing disk is provided with an open strain opening.

[0017] The clamping protrusions are at least two peripheral edges distributed on the top of the fixing disk, and the tops of the clamping protrusions extend toward the clamping disk in an arc shape.

[0018] The inserting pieces and the corresponding inserted slots are arranged in at least two groups.

[0019] The connecting ribs and the scooping grooves matched therewith are provided in at least two groups.

[0020] It also includes a driving mechanism, which is used to drive the connecting shaft structure to rotate and drive the aircraft to move. The connecting shaft structure is the upper connecting rod and the lower connecting rod.

[0021] The technical effects achieved by the utility model are:

[0022] In the utility model, the connecting ribs at the bottom of the fixed plate are distributed in a ring shape, the plug posts at the center of the bottom of the chuck are correspondingly inserted into the interior surrounded by multiple fixed plates, and the connecting ribs are inserted into the interior of the scooping groove. This mutually interlocking structure makes the connection relationship between the upper connecting rod and the lower connecting rod tighter, gradually strengthens the connection structure between the upper connecting rod and the lower connecting rod, greatly improves the overall structural property between the separate upper and lower connecting rods, and at the same time enhances the ability to cope with airflow fluctuations. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the combined structure of the upper connecting rod and the lower connecting rod of the utility model;

[0024] Figure 2 It is a schematic diagram of the separation structure of the chuck and the fixed disk in the utility model;

[0025] Figure 3 It is a structural schematic diagram of another perspective in which the chuck and the fixed plate are separated in the utility model;

[0026] Figure 4 It is a bottom perspective structural diagram of the chuck in the utility model;

[0027] Figure 5It is a structural schematic diagram of an upper connecting rod, a lower connecting rod and a driving mechanism in the utility model.

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 100, upper connecting rod; 101, chuck; 102, scooping groove; 103, plug column; 104, plug sheet;

[0030] 200, lower connecting rod; 201, fixing plate; 202, clamping protrusion; 203, connecting rib; 204, slot; 205, strain opening; 300, driving mechanism. DETAILED DESCRIPTION

[0031] In order to make the purpose and advantages of the utility model more clear, the utility model is specifically described in combination with the following embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the utility model, and does not strictly limit the protection scope of the specific request of the utility model.

[0032] like Figure 1-2 As shown, a model aircraft power connecting shaft structure includes an upper connecting rod 100 and a lower connecting rod 200. The upper connecting rod 100 includes a chuck 101, and the bottom of the chuck 101 is annularly distributed with inserts 104. The lower connecting rod 200 includes a fixed disk 201. The peripheral edge of the fixed disk 201 is provided with a clamping protrusion 202 extending toward the center of the fixed disk 201, and the inner peripheral side of the fixed disk 201 is provided with a slot 204 corresponding to the insert 104.

[0033] Furthermore, the upper connecting rod 100 and the lower connecting rod 200 are arranged opposite to each other in the upper and lower parts, and the insert 104 on the upper connecting rod 100 is correspondingly inserted into the slot 204 of the lower connecting rod 200, so that the upper connecting rod 100 and the lower connecting rod 200 are relatively buckled together to form an integrated connecting shaft, and the latching protrusion 202 on the lower connecting rod 200 is buckled on the chuck 101, so that the upper connecting rod 100 and the lower connecting rod 200 form a detachable structure.

[0034] Refer to the attached Figure 2 A ring-shaped connecting rib 203 is provided on the top of the fixing plate 201, and the connecting rib 203 is a convex arch with a high middle portion and low sides.

[0035] Refer to the attached Figure 3 A ring-shaped scooping groove 102 is provided at the bottom of the chuck 101 . The scooping groove 102 is located on the inner side of the insert 104 . The scooping groove 102 is adapted to be opened by the connecting rib 203 and is adapted to be embedded with the connecting rib 203 .

[0036] According to the above structure, the connecting rib 203 is set as a raised arch structure with a high middle part and low sides, and the protruding peak on the top is adapted to fit with the scooping groove 102, further strengthening the connection structure between the upper connecting rod 100 and the lower connecting rod 200.

[0037] Refer to the attached Figure 3-4 A protruding plug post 103 is provided at the center of the bottom of the chuck 101, and a cavity adapted to accommodate the plug post 103 is formed in the middle of the annularly distributed connecting ribs 203. When the upper connecting rod 100 and the lower connecting rod 200 are relatively buckled, the plug post 103 is located inside the cavity.

[0038] Furthermore, the connecting ribs 203 at the bottom of the fixed disk 201 are distributed in a ring shape, and the plug posts 103 at the bottom center of the chuck 101 are correspondingly inserted into the interior surrounded by multiple fixed disks 201, and the connecting ribs 203 are inserted into the interior of the scooping groove 102. This mutually interlocking structure makes the connection relationship between the upper connecting rod 100 and the lower connecting rod 200 tighter.

[0039] Refer to the attached Figure 3 The outer ring wall of the fixed disk 201 is provided with an open strain opening 205 .

[0040] Furthermore, during the process of the chuck 101 being snapped into the fixed disk 201, the snapping protrusion 202 first contacts the outer edge of the chuck 101, and the snapping protrusion 202 is opened by the force, and elastic deformation occurs, wherein the strain opening 205 provides a residual opening for deformation for the snapping of the chuck 101. When the snapping protrusion 202 is acted upon by an external force, the relative positions of various points change. When the chuck 101 is completely snapped in, the external force is removed, and the snapping protrusion 202 returns to its original state and snaps onto the outer ring side of the chuck 101.

[0041] Furthermore, the locking protrusions 202 are at least two peripheral edges distributed on the top of the fixing plate 201 , and the top of the locking protrusions 202 extends toward the chuck 101 in an arc shape.

[0042] Furthermore, the inserting pieces 104 and the corresponding inserted slots 204 are arranged in at least two groups.

[0043] Furthermore, the connecting ribs 203 and the scooping grooves 102 matched therewith are provided in at least two groups.

[0044] Furthermore, when the protrusion 202, the inserting piece 104, the slot 204 adapted to the scooping groove 102, and the connecting rib 203 are arranged as two groups, the above-mentioned structures that are connected to each other are arranged relatively.

[0045] Refer to the attached Figure 5 , and also includes a driving mechanism 300, which is used to drive the connecting shaft structure to rotate and drive the aircraft to move. The connecting shaft structure is the above-mentioned upper connecting rod 100 and the lower connecting rod 200.

[0046] The working principle of the utility model is as follows: during installation, the chuck 101 on the upper connecting rod 100 is downward, the fixed disk 201 of the lower connecting rod 200 is upward, and the chuck 101 is inserted into the interior of the fixed disk 201. During this process, the bottom insert 104 of the chuck 101 is inserted into the slot 204 of the fixed disk 201, the connecting rib 203 is inserted into the matching scoop groove 102, and the plug post 103 located at the center of the chuck 101 is located in the connecting rib 203 surrounded by a ring-shaped distribution. The above structure gradually strengthens the connection structure between the upper connecting rod 100 and the lower connecting rod 200, so that the overall structural property between the separate upper and lower connecting rods is greatly improved, while enhancing the ability to cope with airflow fluctuations.

[0047] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A power connecting shaft structure for a model aircraft, characterized in that: include An upper connecting rod (100), the upper connecting rod (100) comprising a chuck (101), and inserts (104) are distributed in a ring shape at the bottom of the chuck (101); A lower connecting rod (200), the lower connecting rod (200) comprising a fixing plate (201), the fixing plate (201) having a convex protrusion (202) extending toward the center of the fixing plate (201) on its periphery, and a slot (204) corresponding to the insert sheet (104) on the inner periphery of the fixing plate (201); The upper connecting rod (100) and the lower connecting rod (200) are arranged opposite to each other in an upper and lower position, the inserting piece (104) on the upper connecting rod (100) is correspondingly inserted into the slot (204) of the lower connecting rod (200), and the clamping protrusion (202) on the lower connecting rod (200) is clamped on the clamping plate (101), so that the upper connecting rod (100) and the lower connecting rod (200) form a detachable structure.

2. A model aircraft power connecting shaft structure according to claim 1, characterized in that: The top of the fixing plate (201) is provided with connecting ribs (203) distributed in a ring shape, and the connecting ribs (203) are in the shape of a raised arch with a high middle portion and low sides.

3. A model aircraft power connecting shaft structure according to claim 2, characterized in that: The bottom of the chuck (101) is provided with an annularly distributed scooping groove (102), and the scooping groove (102) is located on the inner side of the insert (104); The scooping groove (102) is adapted to be opened by the connecting rib (203) and is adapted to fit with the connecting rib (203).

4. A model aircraft power connecting shaft structure according to claim 2, characterized in that: A protruding plug post (103) is provided at the center of the bottom of the chuck (101).

5. A model aircraft power connecting shaft structure according to claim 4, characterized in that: The middle part of the annularly distributed connecting ribs (203) forms a cavity for accommodating the adapter plug post (103); When the upper connecting rod (100) and the lower connecting rod (200) are relatively buckled, the plug post (103) is located inside the cavity.

6. A model aircraft power connecting shaft structure according to claim 1, characterized in that: An open strain opening (205) is provided on the outer annular wall of the fixing disk (201).

7. The model aircraft power connecting shaft structure according to any one of claims 1 to 6, characterized in that: The clamping protrusions (202) are at least two peripheral edges distributed on the top of the fixed disk (201), and the tops of the clamping protrusions (202) extend in an arc shape toward the clamping disk (101).

8. The model aircraft power connecting shaft structure according to claim 7, characterized in that: The inserting pieces (104) and the corresponding inserted slots (204) are arranged in at least two groups.

9. The model aircraft power connecting shaft structure according to claim 3, characterized in that: The connecting ribs (203) and the scoop grooves (102) matched therewith are provided in at least two groups.

10. A model aircraft power connecting shaft structure according to claim 7, characterized in that: It also includes a driving mechanism (300), the driving mechanism (300) being used to drive the connecting shaft structure to rotate and drive the aircraft to move, the connecting shaft structure being the upper connecting rod (100) and the lower connecting rod (200).

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