Universal empennage control structure of toy plane

Abstract

According to the universal empennage control structure of the toy plane, the mounting groove and the mounting hole are formed in the plane body part, the two adjacent groove cavities are constructed in the mounting groove, the steering engine is detachably fixed in each groove cavity, the sealing cover is further detachably connected in one groove cavity, and the steering engine is connected with the sealing cover. Meanwhile, the linkage shaft set is arranged to be of a structure comprising a first rotating shaft and two second rotating shafts, the first rotating shaft is detachably arranged in the mounting hole in a sliding fit mode, and the second rotating shafts are fixed to the empennage part and optionally fixed to the swing rod shaft sleeve or the connecting shaft sleeve; the first rotating shaft is arranged in the mounting hole in a sliding fit mode and fixedly connected with the two second rotating shafts through the swing rod shaft sleeve and the connecting shaft sleeve. When the number of the steering engines is two, the two second rotating shafts are rotationally connected to the machine body part through the swing rod shaft sleeves correspondingly.

Description

Technical Field

[0001] The utility model relates to the technical field of toy airplanes, and particularly relates to a universal tail control structure for a toy airplane. Background Art

[0002] When the airplanes on the market at present are flying, they generally change the flight attitude of the airplane by adjusting the tail, such as changing the flight attitude by adjusting the angles of the horizontal tail or the vertical tail of the airplane. The existing methods commonly used to change the angle of the tail include using a digital servo to adjust the angle of the tail. In a tail adjustment mechanism for pitch and yaw conditional decoupling of an aircraft provided in Chinese Patent CN105151281B, by setting a pitch servo, the pitch swing arm of the pitch servo drives the pitch connecting rod to move to drive the tail moving part to swing around the axis of the rotating shaft, thereby realizing the pitch movement of the tail module; in a tail adjustment mechanism of a bionic flapping-wing unmanned aircraft provided in Chinese Patent CN116331545A, by setting two symmetric pitch servos, when the servo arms of the pitch servos rotate left and right to drive the servo steering pull rods to rotate and the main bodies of the yaw servos rotate up and down, the tail part can be driven to rotate up and down, realizing the pitch movement of the bionic flapping-wing unmanned aircraft. However, the existing airplane structure and the linkage shaft structure are only suitable for installing one pitch servo or two pitch servos, and cannot flexibly adjust the number of pitch servos installed on the airplane according to the production order requirements, so the practicability is poor. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a universal tail control structure for a toy airplane to solve the problem in the above background art that in the existing structure, the number of servos installed on the airplane and the corresponding linkage shaft structure cannot be flexibly adjusted.

[0004] To achieve the above purpose, the utility model provides a universal tail control structure for a toy airplane, including an airframe and a control component. The airframe includes a fuselage part and a tail part, and the control component includes a servo and a linkage shaft group. Among them,

[0005] An installation groove and installation holes are provided on the fuselage part. Two adjacent cavity chambers are constructed in the installation groove, and each cavity chamber is provided with an installation hole position for detachably installing the servo. On both sides of one of the cavity chambers, there are also snap holes for detachably connecting a sealing cover;

[0006] The tail part includes two horizontal tails, and each horizontal tail is rotatably provided with a tail rudder through a connecting fold line;

[0007] The linkage shaft group includes a first rotating shaft and two second rotating shafts, the first rotating shaft is detachably slidably fitted in the mounting hole, one end of the second rotating shaft is fixedly connected to a corresponding tail rudder and the other end thereof is fixedly connected to a rocker sleeve or a connecting sleeve, and the rocker sleeve is rigidly connected to the rocker arm of the servo through a connecting rod;

[0008] When the number of the servos is one, the first rotating shaft is slidably fitted in the mounting hole and fixedly connected to the two second rotating shafts through the rocker sleeve and the connecting sleeve; when the number of the servos is two, the two second rotating shafts are rotatably connected to the fuselage part through the rocker sleeves respectively.

[0009] As a preferred solution, the fuselage part is further provided with a mounting seat on both sides of the mounting hole, each of the mounting seats is rotatably connected with the rocker arm sleeve or the connecting sleeve, and the mounting hole, the mounting seat and the connecting fold line are located on the same straight line.

[0010] As a preferred embodiment, the body part is provided with a first inner cavity along the central axis, the cavity opening of the first inner cavity is closed and connected with a first bottom plate, a battery and a main control board are fixedly installed in the first inner cavity, the first bottom plate is provided with the installation groove, the installation groove is communicated with the first inner cavity, and the snap hole is provided in the groove cavity provided on the same side of the installation groove as the battery.

[0011] As a preferred solution, a battery cover is provided at a position of the first bottom plate corresponding to the battery, one end of the battery cover is rotatably connected to the first bottom plate and the other end thereof is detachably connected to the first bottom plate.

[0012] As a preferred solution, the battery cover is provided with heat dissipation holes and bracket mounting holes, and a support frame is detachably plugged and fixed to the bracket mounting hole, and the support frame is used to support the body on a plane to lift it off the ground.

[0013] As a preferred solution, a front wheel groove is further provided on the first bottom plate, and a front wheel frame is detachably plugged and fixed to the front wheel groove.

[0014] As a preferred embodiment, the fuselage part is further provided with a second inner cavity along the central axis, the cavity opening of the second inner cavity is closed and connected with a second bottom plate, a fixing plate is fixedly installed in the second inner cavity, a rear wheel groove is provided on the fixing plate, and a through hole is provided on the second bottom plate corresponding to the rear wheel groove, and the rear wheel groove is detachably plugged and fixed with a rear wheel frame through the through hole.

[0015] As a preferred solution, the front wheel frame includes a first bracket and a front wheel rotatably connected to one end of the first bracket. A first plug connector is formed at the other end of the first bracket. The shape of the first plug connector is adapted to the front wheel groove and is detachably inserted and fixed in the front wheel groove.

[0016] As a preferred solution, the rear wheel frame includes a second bracket and rear wheels rotatably connected to both ends of the second bracket. A second plug connector is formed in the middle of the second bracket. The shape of the second plug connector is adapted to the rear wheel groove and is detachably inserted and fixed in the rear wheel groove through the through hole.

[0017] As a preferred solution, each tail rudder is provided with a notch at a position adjacent to the connection broken line. The second rotating shaft includes a vertically fixed mounting plate and a fixed shaft. The shape of the mounting plate is the same as that of the notch and is fixedly connected in the notch. The fixed shaft is circumferentially fixed to the swing rod bushing or the connection bushing.

[0018] Therefore, according to the technical means of the present invention, the functions that can be obtained by the present invention are briefly described as follows: The universal tail wing control structure of the toy aircraft provided by the present invention forms an installation groove and installation holes on the fuselage part, so that two adjacent cavities are constructed in the installation groove. A servo motor can be detachably fixed in each cavity, and a sealing cover is also detachably connected in one of the cavities. At the same time, the linkage shaft group is set as a structure of a first rotating shaft and two second rotating shafts. The first rotating shaft is detachably slidably fitted in the installation hole, and the second rotating shaft is fixed on the tail wing part and can be optionally fixed to the swing rod bushing or the connection bushing. The above structural settings enable the toy aircraft to flexibly adjust the number of servo motors installed on the fuselage part according to the order requirements during production and assembly, and at the same time, flexibly install the linkage shaft group according to the number of servo motors to ensure the stable and reliable realization of the tail wing control function, with higher practicability. Description of the Drawings

[0019] Figure 1 Schematic diagram of a toy aircraft according to an embodiment of the present invention.

[0020] Figure 2 For Figure 1 Schematic diagram of the middle fuselage.

[0021] Figure 3 For Figure 1 Exploded view of the middle fuselage and the control components.

[0022] Figure 4 For Figure 1 Exploded view of the first bottom plate, the support frame and the front wheel frame in the figure.

[0023] Figure 5 For Figure 1Exploded view of the second bottom plate, fixed plate and rear wheel frame.

[0024] Figure 6 is Figure 2 Cross-sectional view of the body in [].

[0025] Figure 7 is Figure 3 Schematic diagram of a servo installed in the fuselage part in [].

[0026] Figure 8 is Figure 3 Schematic diagram of two servos installed in the fuselage part in [].

[0027] In the figure: 100 - body; 110 - fuselage part; 111 - first inner cavity; 112 - second inner cavity; 113 - mounting hole; 114 - mounting seat; 120 - tail part; 121 - horizontal tail; 122 - connecting fold line; 123 - tail rudder; 1231 - notch; 130 - first bottom plate; 131 - mounting groove; 1311 - groove cavity; 1312 - mounting hole position; 1313 - buckle hole; 132 - sealing cover; 1321 - elastic buckle; 133 - battery cover; 1331 - heat dissipation hole; 1332 - bracket mounting hole; 134 - front wheel groove; 140 - second bottom plate; 141 - through hole; 150 - fixed plate; 151 - rear wheel groove; 160 - fixed cover; 200 - control component; 210 - servo; 220 - linkage shaft group; 221 - first rotating shaft; 222 - second rotating shaft; 2221 - mounting plate; 2222 - fixed shaft; 223 - swing rod bushing; 224 - connecting shaft bushing; 225 - connecting rod; 300 - battery; 400 - main control board; 500 - support frame; 510 - inserting block; 600 - front wheel frame; 610 - first bracket; 611 - first plug connector; 620 - front wheel; 700 - rear wheel frame; 710 - second bracket; 711 - second plug connector; 720 - rear wheel. Detailed implementation manners

[0028] The following further describes in detail the preferred implementation embodiments of the present invention in conjunction with the accompanying drawings.

[0029] The following details the embodiments of the present invention. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0034] Please refer to Figures 1 to 8 This embodiment provides a universal tail control structure for a toy airplane, including a body 100 and a control assembly 200. The body 100 includes a fuselage portion 110 and a tail portion 120, and the control assembly 200 is fixedly mounted on the fuselage portion 110. The control assembly 200 is transmission-connected to a tail rudder of the tail portion 120, and is used to control the tail rudder to perform a deflection movement on the tail portion 120, thereby achieving the purpose of adjusting the flight attitude of the toy airplane.

[0035] The fuselage part 110 is successively provided with a first inner cavity 111 and a second inner cavity 112 along the central axis. At the orifice of the first inner cavity 111, a first bottom plate 130 is hermetically connected. At the orifice of the second inner cavity 112, a second bottom plate 140 is hermetically connected. The cooperation of the first bottom plate 130 and the second bottom plate 140 with the first inner cavity 111 and the second inner cavity 112 can form a relatively enclosed installation space inside the fuselage part 110. Among them, a battery 300 and a main control board 400 are fixedly installed in the first inner cavity 111. The battery 300 and the main control board 400 are electrically connected and are used to form an electric control loop when connected to the control component 200. A fixing plate 150 is fixedly installed in the second inner cavity 112. A rear wheel groove 151 is formed on the fixing plate 150 for detachably installing a rear wheel frame 700 on the fuselage part 110.

[0036] It can be understood that an installation hole 113 and two mounting seats 114 are formed at the end part of the fuselage part 110. The two mounting seats 114 are respectively arranged on both sides of the installation hole 113. The installation hole 113 and the mounting seats 114 are used to detachably install the linkage shaft group of the control component 200 respectively. Among them, a fixing cover 160 is detachably connected to each mounting seat 114 to facilitate fixedly installing the linkage shaft group in the mounting seat 114.

[0037] The tail fin part 120 includes two horizontal tail fins 121. Each horizontal tail fin 121 is rotatably provided with a tail rudder 123 through a connecting fold line 122. The tail rudder 123 is fixed to the linkage shaft group of the control component 200 and can rotate up and down along the connecting fold line 122 under its control. It can be understood that the connecting fold line 122 is on the same straight line as the installation hole 113 and the mounting seats 114, which is used to enable the linkage shaft group to stably drive the tail rudder 123 to rotate and at the same time has the effect of a compact structure. Each tail rudder 123 is provided with a notch 1231 at a position adjacent to the connecting fold line 122, and the notch 1231 is used to fixedly connect the linkage shaft group.

[0038] An installation groove 131 is formed in the first bottom plate 130. The installation groove 131 communicates with the first inner cavity 111, and two adjacent cavities 1311 are constructed in the installation groove 131. An installation hole position 1312 for detachably installing a servo of the control assembly 200 is provided in each cavity 1311. Snap holes 1313 for detachably connecting a sealing cover 132 are further provided on both sides of one of the cavities 1311. Elastic snaps 1321 are respectively arranged on both sides of the sealing cover 132, and the elastic snaps 1321 can be elastically snap-connected into the snap holes 1313. It can be understood that when only one servo needs to be installed on the fuselage part 110, the sealing cover 132 can be hermetically connected to the other cavity 1311, so that a relatively enclosed installation space can still be formed inside the fuselage part 110, and it can prevent objects such as dust and liquid from entering the first inner cavity 111 from the cavity opening of the cavity 1311, thus affecting the normal operation of the toy plane.

[0039] It should be noted that the snap holes 1313 are opened in the cavity 1311 arranged on the same side as the battery 300 in the installation groove 131. That is to say, the sealing cover 132 is detachably fixed at the cavity opening of the cavity 1311 arranged on the same side as the battery 300. When only one servo needs to be installed on the fuselage part 110 as described above, the servo can be installed on the other side opposite to the battery 300, so that the overall weight distribution on the fuselage part 110 can be relatively dispersed, preventing its overall weight from tilting to one side, so as to ensure that the center of gravity of the toy plane can be maintained at a relatively central position, which is beneficial to flight.

[0040] The first bottom plate 130 is provided with a battery cover 133 at a position corresponding to the battery 300. One end of the battery cover 133 is rotatably connected to the first bottom plate 130 and the other end is detachably connected to the first bottom plate 130. The battery 300 can be replaced conveniently through the battery cover 133, thus facilitating the use of the toy plane. In this embodiment, heat dissipation holes 1331 and bracket installation holes 1332 are opened on the battery cover 133. The heat dissipation holes 1331 facilitate the heat dissipation of the battery 300. A support frame 500 is detachably inserted and fixed in the bracket installation holes 1332. The support frame 500 is used to support the body 100 on a plane so that it is off the ground. It can be understood that an insertion block 510 corresponding to the shape of the bracket installation holes 1332 is provided on the support frame 500, and the support frame 500 can be inserted and fixed in the bracket installation holes 1332 or detached from the bracket installation holes 1332 through the insertion block 510. In other embodiments of the present invention, the bracket installation holes 1332 may not be provided on the battery cover 133, and then the body 100 can only touch the ground through the front wheel frame 600 and the rear wheel frame 700.

[0041] A front wheel groove 134 is also formed in the first bottom plate 130. A front wheel frame 600 is detachably inserted and fixed in the front wheel groove 134. The front wheel frame 600 includes a first bracket 610 and a front wheel 620 rotatably connected to one end of the first bracket 610. It can be understood that a first plug connector 611 is formed at the other end of the first bracket 610. The shape of the first plug connector 611 is adapted to the front wheel groove 134 and is detachably inserted and fixed in the front wheel groove 134. Through the cooperation of the front wheel groove 134 and the first plug connector 611, the front wheel frame 600 is detachably connected to the fuselage part 110, so that the user can choose to install or remove the front wheel frame 600 on the body 100.

[0042] A through hole 141 is formed in the second bottom plate 140 corresponding to the rear wheel groove 151. The rear wheel groove 151 is detachably inserted and fixed with a rear wheel frame 700 through the through hole 141. The rear wheel frame 700 includes a second bracket 710 and rear wheels 720 rotatably connected to both ends of the second bracket 710. It can be understood that a second plug connector 711 is formed in the middle of the second bracket 710. The shape of the second plug connector 711 is adapted to the rear wheel groove 151 and is detachably inserted and fixed in the rear wheel groove 151 through the through hole 141. Through the cooperation of the through hole 141, the rear wheel groove 151 and the rear wheel frame 700, the rear wheel frame 700 is detachably connected to the fuselage part 110, so that the user can choose to install or remove the rear wheel frame 700 on the body 100.

[0043] The control assembly 200 includes a servo 210 and a linkage shaft group 220. The number of servos 210 can be set to one or two according to requirements. Each servo 210 can be detachably connected to the mounting hole 1312 of any cavity 1311 through a threaded part, so as to achieve the purpose of fixedly installing one servo 210 (and the sealing cover 132) or two servos 210 in the mounting groove 131.

[0044] The linkage shaft assembly 220 includes a first rotating shaft 221 and two second rotating shafts 222, wherein the first rotating shaft 221 is detachably slidably fitted in the mounting hole 113, one end of the second rotating shaft 222 is fixedly connected to a corresponding tail rudder 123 and the other end thereof is fixedly connected to a rocker sleeve 223 or a connecting sleeve 224. It can be understood that the second rotating shaft 222 includes a vertically fixed mounting plate 2221 and a fixed shaft 2222, the mounting plate 2221 has the same shape as the notch 1231 and is fixedly connected in the notch 1231, and the fixed shaft 2222 is circumferentially fixed to the rocker sleeve 223 or the connecting sleeve 224. The rocker sleeve 223 and the connecting sleeve 224 are both rotatably connected in the mounting seat 114, and are both restricted by the fixing cover 160 and stably connected in the mounting seat 114. The swing arm sleeve 223 is rigidly connected to the swing arm of the steering gear 210 through the connecting rod 225, and is used to drive the swing arm sleeve 223 to swing left and right through the connecting rod 225 when the swing arm of the steering gear 210 swings left and right, so that the swing arm sleeve 223 can drive the second rotating shaft 222 to rotate and drive the tail rudder 123 to swing up and down along the connecting fold line 122. The swing arm sleeve 223 and the connecting sleeve 224 can both fix the second rotating shaft 222 to the first rotating shaft 221, so that the first rotating shaft 221 and the two second rotating shafts 222 can be combined into a fixed rotating shaft.

[0045] When a steering gear 210 needs to be installed on the body 100, the steering gear 210 needs to be fixed in the groove cavity 1311 without the buckle hole 1313, and the sealing cover 132 needs to be buckled and connected to the other groove cavity 1311. Subsequently, the fixing cover 160 is detached from the mounting seat 114, and the first rotating shaft 221 is inserted into the mounting hole 113 so that the two can be slidably matched. A swing arm sleeve 223 is fixed on the second rotating shaft 222 on the same side as the steering gear 210, and a connecting sleeve 224 is fixed on the second rotating shaft 222 on the same side as the sealing cover 132. The swing arm sleeve 223 and the connecting sleeve 224 are respectively connected to the two mounting seats 114. At this time, the first rotating shaft 221 is fixedly connected to the two second rotating shafts 222 through the swing arm sleeve 223 and the connecting sleeve 224. Finally, the fixing cover 160 is fixedly mounted on the mounting seat 114, and the installation of a steering gear 210 and its corresponding linkage shaft group is completed. When the steering gear 210 is working, its swing arm can drive the swing arm sleeve 223 to rotate through the connecting rod 225. Since the first rotating shaft 221 is fixedly connected to the two second rotating shafts 222 through the swing arm sleeve 223 and the connecting sleeve 224, it can drive the other second rotating shaft 222 to rotate in the same direction at the same time, so that the two tail rudders 123 rotate in the same direction, thereby achieving the purpose of controlling the tail wing part 120 to perform pitch motion.

[0046] When two servos 210 need to be installed on the fuselage 100, the two servos 210 are correspondingly fixed in two cavities 1311. Subsequently, the fixing cover 160 is detached from the mounting base 114, so that swing rod sleeves 223 are fixed on both of the second rotating shafts 222, and the two swing rod sleeves 223 are respectively connected in the two mounting bases 114. Finally, the fixing cover 160 is fixedly installed on the mounting base 114, so that the two second rotating shafts 222 are respectively rotatably connected to the fuselage part 110 through the swing rod sleeves 223, and thus the installation of the two servos 210 and the corresponding linkage shaft groups thereof can be completed. The two servos 210 can respectively drive the corresponding swing rod sleeves 223 to rotate through the connecting rods 225, so as to drive the two tail rudders 123 to deflect in the same direction to achieve the purpose of controlling the pitching motion of the tail wing part 120, and can also drive the two tail rudders 123 to deflect differentially to achieve the purpose of controlling the yawing motion of the tail wing part 120.

[0047] For clarity, certain features described in the separate embodiments of the present utility model can be combined and used in a single embodiment. Moreover, the various features of the present utility model described in a single embodiment can also be used separately or in any suitable form in sub-combinations.

Claims

1. A general tail wing control structure for a toy plane, comprising a fuselage and a control component, characterized in that, The fuselage includes a fuselage part and a tail part, and the control assembly includes a steering gear and a linkage shaft group, wherein: The fuselage part is provided with a mounting groove and a mounting hole, and two adjacent groove cavities are constructed in the mounting groove, and each of the groove cavities is provided with a mounting hole position for detachably installing the steering gear, and buckle holes for detachably connecting a sealing cover are also provided on both sides of one of the groove cavities; The tail section includes two horizontal tails, each of which is connected by a fold line and is provided with a tail rudder; The linkage shaft group includes a first rotating shaft and two second rotating shafts, the first rotating shaft is detachably slidably fitted in the mounting hole, one end of the second rotating shaft is fixedly connected to a corresponding tail rudder and the other end thereof is fixedly connected to a rocker sleeve or a connecting sleeve, and the rocker sleeve is rigidly connected to the rocker arm of the servo through a connecting rod; When the number of the servos is one, the first rotating shaft is slidably fitted in the mounting hole and fixedly connected to the two second rotating shafts through the rocker sleeve and the connecting sleeve; when the number of the servos is two, the two second rotating shafts are rotatably connected to the fuselage part through the rocker sleeves respectively.

2. The universal tail control structure of the toy plane according to claim 1, characterized in that, The fuselage part is also provided with a mounting seat on both sides of the mounting hole, and the rocker arm sleeve or the connecting sleeve is rotatably connected in each mounting seat. The mounting hole, the mounting seat and the connecting fold line are located on the same straight line.

3. The universal tail control structure of the toy plane according to claim 2, characterized in that The body part is provided with a first inner cavity along the central axis, the cavity opening of the first inner cavity is closed and connected with a first bottom plate, a battery and a main control board are fixedly installed in the first inner cavity, the first bottom plate is provided with the installation groove, the installation groove is communicated with the first inner cavity, and the snap hole is provided in the groove cavity provided on the same side of the battery in the installation groove.

4. The universal tail control structure of the toy airplane according to claim 3, characterized in that A battery cover is disposed on the first bottom plate at a position corresponding to the battery. One end of the battery cover is rotatably connected to the first bottom plate and the other end of the battery cover is detachably connected to the first bottom plate.

5. The universal tail control structure of the toy airplane according to claim 4, characterized in that, The battery cover is provided with heat dissipation holes and bracket mounting holes, and a support frame is detachably plugged and fixed to the bracket mounting hole, and the support frame is used to support the machine body on a plane to lift it off the ground.

6. The universal tail control structure of the toy airplane according to claim 3, characterized in that The first bottom plate is also provided with a front wheel groove, and a front wheel frame is detachably plugged and fixed to the front wheel groove.

7. The universal tail control structure of the toy airplane according to claim 6, characterized in that, The fuselage part is also provided with a second inner cavity along the central axis, the cavity opening of the second inner cavity is closed and connected with a second bottom plate, a fixing plate is fixedly installed in the second inner cavity, a rear wheel groove is provided on the fixing plate, and a through hole is provided on the second bottom plate corresponding to the rear wheel groove, and a rear wheel frame is detachably plugged and fixed to the rear wheel groove through the through hole.

8. The universal tail control structure of the toy airplane according to claim 6, characterized in that, The front wheel frame includes a first bracket and a front wheel rotatably connected to one end of the first bracket, and a first plug connector is formed at the other end of the first bracket. The shape of the first plug connector is adapted to the front wheel groove and the first plug connector is detachably fixed in the front wheel groove.

9. The universal tail control structure of the toy airplane according to claim 7, characterized in that, The rear wheel frame includes a second bracket and rear wheels rotatably connected to both ends of the second bracket. A second socket is formed in the middle of the second bracket. The shape of the second socket is adapted to the rear wheel groove and is detachably inserted and fixed in the rear wheel groove through the through hole.

10. The universal tail control structure of the toy airplane according to claim 1, wherein, Each rudder is provided with a notch at a position adjacent to the connecting broken line. The second rotating shaft includes a vertically fixed mounting plate and a fixed shaft. The shape of the mounting plate is the same as that of the notch and is fixedly connected in the notch. The fixed shaft is circumferentially fixed to the swing rod bushing or the connecting bushing.

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