An aviation model used in aviation sports

Abstract

The invention discloses an aviation model used in aviation sports, and belongs to the technical field of equipment used in aviation sports. An aviation model used in aviation sports comprises a mobile base, a mounting shell is provided on the upper side of the top surface of the mobile base, an adjustment assembly is provided on the left side of the inner cavity of the mounting shell, a driving rack is provided on the top surface of the inner wall of the mounting shell, a pushing hammer is provided on the right side of the middle of the top surface of the driving rack, a first spring is provided on the left end surface of the receiving plate, a lifting assembly is provided on the right side of the inner cavity of the mounting shell, an aircraft model body is provided in the middle of the top surface of the mounting shell, and a slow-down assembly is provided on both the front side of the middle of the bottom surface of the aircraft model body and the front and rear sides of the bottom surface. The invention provides a pushing hammer and a first spring, and the pushing hammer strikes the force-bearing plate, so that the aircraft model body can be launched to fly, and no manpower is required for projection. It is suitable for younger students to use in aircraft model sports, so that younger students can fully experience the fun brought by aircraft model sports, which is conducive to the smooth promotion of aircraft model sports.

Description

Technical Field

[0001] The present invention relates to the technical field of equipment for aviation sports, and more particularly to an aviation model in aviation sports. Background Art

[0002] An aircraft model is a prototype aircraft with size and weight restrictions. The aircraft model sport is an aviation sport that involves flying and manipulating homemade aircraft models for competition and record-breaking flights. This sport helps to cultivate students' interest in aviation, popularize aviation knowledge and technology, cultivate aviation talents, develop intelligence, and improve physical health. The development of aircraft model sports can better cultivate students' meticulous observation and enrich their imagination; enhance students' hands-on skills and exercise their ability to analyze and solve problems. It can not only provide a free activity space for students to apply knowledge and display and develop personal talents, but also create conditions for the popularization and application of modern technology. Therefore, many primary schools will also allow younger primary school students to actively participate in aircraft model sports. At present, the aircraft models on the market are roughly divided into free flight and remote control. Remote control aircraft models have complex structures and are somewhat dangerous, so they are not suitable for younger students; although free flight aircraft models have simple structures, most of them need to rely on manpower for projection. It is difficult for younger primary school students to make aircraft models fly normally, and free flight aircraft models are easily damaged by shock when landing. This makes it difficult for younger students to fully appreciate the joy brought by aviation model sports, which is not conducive to the smooth development of aviation sports. In view of this, we propose an aviation model in aviation sports. Summary of the invention

[0003] 1. Technical problems to be solved

[0004] The object of the present invention is to provide an aviation model for aviation sports to solve the problems raised in the above-mentioned background technology.

[0005] 2. Technical solution

[0006] An aviation model used in aviation sports comprises a mobile base, characterized in that: a mounting shell is provided on the upper side of the top surface of the mobile base, a through groove is provided on the left side of the middle part of the top surface of the mounting shell, a through hole is provided on the right side of the middle part of the top surface of the mounting shell, a rotating handle is provided on the front side of the left part of the front end surface of the mounting shell, a main shaft is connected to the rear end of the rotating handle, the rear end of the main shaft passes through the front end surface of the inner wall of the mounting shell and extends to its inner cavity, the rear end of the main shaft is limited by the rear end surface of the inner wall of the mounting shell and is rotatably connected thereto; an adjustment component is provided on the left side of the inner cavity of the mounting shell, and the mounting shell A driving rack is provided on the top surface of the inner wall of the body, and a pushing hammer is fixed with a connecting column on the right side in the middle of the top surface of the driving rack. The connecting column passes through the through slot and is slidably connected to the through slot, and the circumferential outer wall of the pushing hammer is in active contact with the left end surface of the force-bearing plate; a receiving plate is provided on the right side of the front and rear end surfaces of the driving rack, and a first spring is provided on the left end surface of the receiving plate, a lifting assembly is provided on the right side of the inner cavity of the mounting shell, an aircraft model body is provided in the middle of the top surface of the mounting shell, a force-bearing plate is provided in the middle of the bottom surface of the aircraft model body, and a slow-down assembly is provided on the front side of the middle of the bottom surface of the aircraft model body and the front and rear sides of the rear of the bottom surface.

[0007] Preferably, the adjustment assembly comprises a mounting sleeve sleeved on the circumferential outer wall of the main shaft, the circumferential outer wall of the mounting sleeve is linearly and evenly spaced with a plurality of arc gears, and the number of teeth of the arc gears increases from the back to the front.

[0008] Preferably, bolts are threadedly connected to the front and rear sides of the left portion of the circumferential outer wall of the mounting sleeve, and the right end of the bolt passes through the left portion of the circumferential outer wall of the mounting sleeve and extends to the inner cavity thereof and is in active contact with the left portion.

[0009] Preferably, a baffle is provided on the left side of the middle part of the top surface of the installation shell, and slide grooves are provided on both the front and rear sides of the middle part of the top surface of the installation shell. The left and right sides of the slide groove are arranged in an inverted circular structure, and the model aircraft body is stably placed on the installation shell through the cooperation of the baffle and the slide groove.

[0010] The transmission gear is meshed with the transmission rack, and the lifting gear is meshed with the transmission rack, and the lifting gear is meshed with the transmission rack, and the middle parts of the upper and lower end surfaces of the transmission rack are provided with T-shaped receiving rods, and the upper end of the T-shaped receiving rods on the upper side are connected to the first rotating frame, and the middle part of the first rotating frame is rotatably connected to the fixed wheel.

[0011] Preferably, an active tooth matching the lifting gear is slidably connected to the middle part of the circumferential outer wall of the T-shaped supporting rod, and the lifting gear is in active contact with the active tooth. A bearing plate is provided on the inner side of the right end face of the active tooth and on the upper and lower sides of the middle part of the right end face of the transmission rack, and a second spring is connected between the two corresponding inner end faces of the bearing plates.

[0012] Preferably, the slow descent assembly includes a load-bearing rod arranged on the front side of the middle part of the bottom surface of the model aircraft body and on the left and right sides of the rear part of the bottom surface of the model aircraft body. A connecting tube is slidably connected to the lower side of the circumferential outer wall of the load-bearing rod. A second rotating frame is provided at the lower end of the connecting tube. A plurality of third springs are densely distributed on the top surface of the second rotating frame. Sliding holes are provided in the middle part of the bottom surface of the connecting tube and in the middle part of the second rotating frame. An I-shaped roller is rotatably connected to the middle part of the second rotating frame, and the I-shaped roller is slidably matched with the slide groove.

[0013] Preferably, a movable plate is provided in the middle of the bottom surface of the load-bearing rod, the lower end of the movable plate extends through the bottom surface of the sliding hole to the upper side of the circumferential outer wall of the I-shaped roller and is connected to a conical speed reduction block, and the middle of the circumferential outer wall of the I-shaped roller is densely covered with a plurality of conical limiting holes that are compatible with the conical speed reduction blocks, and the outer wall of the conical speed reduction block is in friction contact with the inner wall of the conical limiting hole.

[0014] Preferably, the left and right end surfaces of the movable plate are densely covered with a plurality of arc-shaped slow-rise strips, the arc-shaped slow-rise strips are made of rubber material, and the arc-shaped slow-rise strips are in friction contact with the inner wall of the sliding hole.

[0015] Preferably, a ball bearing is embedded in the middle of the top surface of the movable base, the upper side of the ball bearing is connected and fixed to the bottom surface of the mounting shell, a moving handle is provided on the lower side of the left end surface of the mounting shell, a surrounding groove is opened on the top surface of the movable base, fourth springs are provided on the left and right sides of the bottom surface of the mounting shell, a sliding plate is provided at the lower end of the fourth spring, and the bottom surface of the sliding plate is slidably connected to the bottom surface of the inner wall of the surrounding groove.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] 1. The present invention provides a pushing hammer and a first spring. The pushing hammer strikes the force plate, so that the model aircraft body can be pushed out to fly. No manpower is needed to project the model aircraft. The present invention is suitable for younger students to use in model aircraft sports, so that younger students can fully experience the fun brought by model aircraft sports, which is conducive to the smooth promotion of model aircraft sports.

[0019] 2. The present invention provides an adjustment component so that the user can adjust the distance the driving rack moves, thereby changing the force with which the pushing hammer strikes the force plate, thereby facilitating the user to change the flight distance of the aircraft model body.

[0020] 3. The present invention provides a transmission rack and a lifting gear. When the driving rack moves to the left to accumulate force in the first spring, the fixed wheel can lift the front part of the model aircraft body to a certain angle, which is conducive to a smoother flight of the model aircraft body.

[0021] 4. The present invention provides active teeth and a second spring to prevent the transmission rack from always moving upward or downward during the rotation of the lifting gear, while allowing the transmission rack to always smoothly mesh with the lifting gear, thereby improving the stability of the device.

[0022] 5. The present invention provides a slow-descent component, which can, on the one hand, cushion the main body of the model aircraft when it lands to prevent the main body of the model aircraft from being damaged during landing; on the other hand, it can limit the I-shaped roller to prevent the main body of the model aircraft from sliding too long, making it easier for the user to pick up the main body of the model aircraft. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a structural schematic diagram of installing the housing in the present invention;

[0025] Figure 3 It is a schematic cross-sectional view of the structure of the installation shell in the present invention;

[0026] Figure 4 It is a schematic diagram of the structural decomposition of the adjustment component in the present invention;

[0027] Figure 5 It is a structural schematic diagram of the lifting assembly in the present invention;

[0028] Figure 6 It is a schematic cross-sectional view of the structure of the U-shaped positioning plate in the present invention;

[0029] Figure 7 It is a structural schematic diagram of the descent control assembly in the present invention;

[0030] Figure 8 It is a schematic cross-sectional view of the structure of the connecting tube and the second rotating frame in the present invention;

[0031] Explanation of the reference numerals in the figure: 1. moving base; 101. surrounding groove; 2. mounting shell; 201. through groove; 202. slide groove; 203. through hole; 3. adjustment assembly; 301. mounting sleeve; 302. arc gear; 303. bolt; 4. moving handle; 5. driving rack; 6. pushing hammer; 7. lifting assembly; 701. driven shaft; 702. transmission rack; 703. lifting gear; 704. U-shaped positioning plate; 705. second spring; 706. driving gear; 707. first rotating frame; 708. fixed wheel; 709. transmission belt; 710. driving gear Wheel; 711, driven I-shaped wheel; 712, T-shaped receiving rod; 713, load-bearing plate; 8, slow-down assembly; 801, load-bearing rod; 802, connecting tube; 803, I-shaped roller; 804, second rotating frame; 805, conical limiting hole; 806, third spring; 807, movable plate; 808, arc-shaped slow-down strip; 809, sliding hole; 810, conical deceleration block; 9, main shaft; 10, baffle; 11, force plate; 12, sliding plate; 13, fourth spring; 14, rotating handle; 15, model aircraft body; 16, receiving plate; 17, ball bearing; 18, first spring. DETAILED DESCRIPTION

[0032] See also Figure 1-8 , the present invention provides a technical solution:

[0033] An aviation model for aviation sports comprises a mobile base 1, a mounting shell 2 is arranged on the upper side of the top surface of the mobile base 1, a baffle 10 is arranged on the left side of the middle of the top surface of the mounting shell 2, a through slot 201 is opened on the left side of the middle of the top surface of the mounting shell 2, a through hole 203 is opened on the right side of the middle of the top surface of the mounting shell 2, a slide slot 202 is arranged on both the front and rear sides of the middle of the top surface of the mounting shell 2, a rotating handle 14 is arranged on the front side of the left part of the front end surface of the mounting shell 2, a main shaft 9 is connected to the rear end of the rotating handle 14, and a left inner cavity of the mounting shell 2 is provided. An adjustment component 3 is provided on the side, a driving rack 5 is provided on the top surface of the inner wall of the mounting shell 2, a pushing hammer 6 is provided on the right side of the middle of the top surface of the driving rack 5, receiving plates 16 are provided on the right sides of the front and rear end surfaces of the driving rack 5, a first spring 18 is provided on the left end surface of the receiving plate 16, a lifting component 7 is provided on the right side of the inner cavity of the mounting shell 2, an aircraft model body 15 is provided in the middle of the top surface of the mounting shell 2, a force plate 11 is provided in the middle of the bottom surface of the aircraft model body 15, and a slow-down component 8 is provided on the front side of the middle of the bottom surface of the aircraft model body 15 and on the front and rear sides of the rear of the bottom surface.

[0034] In this embodiment, the driving rack 5 moves to the left, causing the first spring 18 to contract and accumulate force on the pushing hammer 6. When the driving rack 5 loses its limit, the pushing hammer 6 will strike the force plate 11 to the right, allowing the model aircraft body 15 to fly smoothly. There is no need for students to project the model aircraft body 15, which is conducive to the promotion of model aircraft sports.

[0035] Specifically, the rear end of the main shaft 9 passes through the front end face of the inner wall of the mounting shell 2 and extends to its inner cavity. The rear end of the main shaft 9 is restricted by the rear end face of the inner wall of the mounting shell 2 and is rotatably connected thereto. The left and right sides of the slide groove 202 are arranged in an inverted circular structure, pushing the circumferential outer wall of the hammer 6 to flexibly contact with the left end face of the force-bearing plate 11.

[0036] In this embodiment, the slide groove 202 can limit the model aircraft body 15 to ensure that the model aircraft body 15 can fly smoothly.

[0037] Furthermore, the adjustment component 3 includes a mounting sleeve 301 mounted on the circumferential outer wall of the main shaft 9, and a plurality of arc gears 302 are linearly and evenly spaced on the circumferential outer wall of the mounting sleeve 301, and the number of teeth of the arc gears 302 increases from the back to the front.

[0038] In this embodiment, the user can change the pushing force of the push hammer 6 by meshing different arc gears 302 with the driving rack 5, thereby changing the flying distance of the model aircraft body 15.

[0039] Furthermore, bolts 303 are threadedly connected to the front and rear sides of the left side of the circumferential outer wall of the installation sleeve 301, and the right end of the bolt 303 passes through the left side of the circumferential outer wall of the installation sleeve 301 and extends to the inner cavity thereof and is in active contact with the inner cavity.

[0040] In this embodiment, it is convenient for the user to fix the arc gear 302 .

[0041] Furthermore, the lifting assembly 7 includes an active wheel 710 sleeved on the rear side of the circumferential outer wall of the main shaft 9, a driven shaft 701 limited by the right side of the rear end face of the inner wall of the mounting shell 2 and rotatably connected thereto, and a U-shaped positioning plate 704 arranged at the lower side of the through hole 203, a transmission belt 709 is sleeved on the middle part of the circumferential outer wall of the active wheel 710, a driven wheel 711 is sleeved on the rear side of the circumferential outer wall of the driven shaft 701, and the middle part of the circumferential outer wall of the driven wheel 711 and the circumferential outer wall of the active wheel 710 are provided. The middle part of the outer wall is frictionally driven with the inner wall of the conveyor belt 709, and a lifting gear 703 is sleeved on the middle part of the circumferential outer wall of the driven shaft 701. The inner wall of the U-shaped positioning plate 704 is slidably connected with a transmission rack 702. The lifting gear 703 is meshed with the transmission rack 702. A T-shaped connecting rod 712 is provided in the middle part of the upper and lower end surfaces of the transmission rack 702. The upper end of the upper T-shaped connecting rod 712 is connected to the first rotating frame 707, and the middle part of the first rotating frame 707 is rotatably connected to a fixed wheel 708.

[0042] In this embodiment, when the arc gear 302 rotates clockwise around the axis of the main shaft 9, the active I-shaped wheel 710 follows the rotation. Under the connection of the transmission belt 709, the driven shaft 701 drives the lifting gear 703 to rotate. Since the lifting gear 703 is meshed with the transmission rack 702, the transmission rack 702 will drive the fixed wheel 708 to move upward, slightly lifting the front side of the model aircraft body 15, thereby assisting the model aircraft body 15 to fly smoothly.

[0043] It is worth mentioning that an active tooth 706 that matches the lifting gear 703 is slidably connected to the middle part of the circumferential outer wall of the T-shaped supporting rod 712, and the lifting gear 703 is in active contact with the active tooth 706. A bearing plate 713 is provided on the inner side of the right end face of the active tooth 706 and on the upper and lower sides of the middle part of the right end face of the transmission rack 702, and a second spring 705 is connected between the inner end faces of the two corresponding bearing plates 713.

[0044] In this embodiment, the provision of the active tooth 706 and the second spring 705 can prevent the transmission rack 702 from always moving upward or downward, while allowing the transmission rack 702 to always smoothly mesh with the lifting gear 703.

[0045] It is worth noting that the slow-descent assembly 8 includes a load-bearing rod 801 arranged on the front side of the middle part of the bottom surface of the model aircraft body 15 and on the left and right sides of the rear part of the bottom surface of the model aircraft body 15. The load-bearing rod 801 is slidably connected to the lower side of the circumferential outer wall with a connecting tube 802. The lower end of the connecting tube 802 is provided with a second rotating frame 804. The top surface of the second rotating frame 804 is densely covered with a plurality of third springs 806. Sliding holes 809 are opened in the middle part of the bottom surface of the connecting tube 802 and the middle part of the second rotating frame 804. The middle part of the second rotating frame 804 is rotatably connected with an I-shaped roller 803, and the I-shaped roller 803 is slidably matched with the slide groove 202.

[0046] In this embodiment, the third spring 806 can cushion the model aircraft body 15 when the model aircraft body 15 lands, thereby preventing the model aircraft body 15 from being subjected to excessive impact force during landing, thereby preventing the model aircraft body 15 from being damaged.

[0047] In addition, a movable plate 807 is provided in the middle of the bottom surface of the load-bearing rod 801. The lower end of the movable plate 807 passes through the bottom surface of the sliding hole 809 and extends to the upper side of the circumferential outer wall of the I-shaped roller 803 and is connected to a conical reduction block 810. The middle of the circumferential outer wall of the I-shaped roller 803 is densely distributed with a plurality of conical limiting holes 805 that are compatible with the conical reduction block 810. The outer wall of the conical reduction block 810 is in friction contact with the inner wall of the conical limiting hole 805.

[0048] In the present embodiment, at the moment when the model aircraft body 15 lands, the model aircraft body 15 moves downward, and the load-bearing rod 801 drives the movable plate 807 and the conical deceleration block 810 to move downward, and the conical deceleration block 810 immediately enters the corresponding conical limiting hole 805 inner cavity to limit the I-shaped roller 803 and prevent the I-shaped roller 803 from continuing to roll, thereby preventing the model aircraft body 15 from sliding too long, making it easier for the user to pick up the model aircraft body 15.

[0049] In addition, the left and right end surfaces of the movable plate 807 are densely covered with a plurality of arc-shaped slow-rise strips 808 , which are made of rubber material and are in frictional contact with the inner wall of the sliding hole 809 .

[0050] In this embodiment, the provision of the arc-shaped slow-rise strip 808 enables the load-bearing rod 801 to drive the movable plate 807 and the conical deceleration block 810 to move downward more smoothly. When the load-bearing rod 801 drives the movable plate 807 and the conical deceleration block 810 to reset upward under the action of the third spring 806, the arc-shaped slow-rise strip 808 will reduce the rising speed of the movable plate 807 and the conical deceleration block 810, thereby prolonging the contact time between the conical deceleration block 810 and the conical limit hole 805, so that the model aircraft body 15 can stop sliding as soon as possible.

[0051] In addition, a ball bearing 17 is embedded in the middle of the top surface of the movable base 1, and the upper side of the ball bearing 17 is connected and fixed to the bottom surface of the mounting shell 2. A movable handle 4 is provided on the lower side of the left end surface of the mounting shell 2. A surrounding groove 101 is opened on the top surface of the movable base 1, and fourth springs 13 are provided on the left and right sides of the bottom surface of the mounting shell 2. A sliding plate 12 is provided at the lower end of the fourth spring 13, and the bottom surface of the sliding plate 12 is slidably connected to the bottom surface of the inner wall of the surrounding groove 101.

[0052] In this embodiment, it is convenient for the user to control the projection direction of the model aircraft body 15 .

[0053] Working principle: When the user needs to fly the model airplane body 15, first place the device in an appropriate position, and align the I-shaped rollers 803 on the front and rear sides of the right part with the slide groove 202 to stabilize the model airplane body 15. Then the user moves the mounting sleeve 301 so that the corresponding arc gear 302 is meshed and connected with the drive rack 5. Then the user holds the rotating handle 14 to rotate the main shaft 9 and the arc gear 302 around the axis of the main shaft 9 to drive the rack 5 to move to the left, so that the first spring 18 contracts and accumulates power for the push hammer 6. In this process, the active I-shaped wheel 710 rotates with it, and under the connection of the transmission belt 709, the driven shaft 701 drives the lifting gear 703 to rotate. Since the lifting gear 703 is meshed with the transmission rack 702, the transmission rack 702 will drive the fixed wheel 708 to move upward, and slightly lift the front side of the model airplane body 15. When the arc gear 302 is no longer meshed with the driving rack 5, the driving rack 5 loses its limit, and under the action of the force of the first spring 18 extending and restoring, the push hammer 6 will knock the force plate 11 to the right, allowing the model aircraft body 15 to fly smoothly. When the model airplane body 15 is falling downward, at the moment of the model airplane body 15 falling, the model airplane body 15 moves downward, the third spring 806 buffers it, the load-bearing rod 801 drives the movable plate 807 and the conical deceleration block 810 to follow and move downward, and the conical deceleration block 810 immediately enters the corresponding conical limiting hole 805 inner cavity, limits the I-shaped roller 803, and prevents the I-shaped roller 803 from continuing to roll. When the load-bearing rod 801 drives the movable plate 807 and the conical deceleration block 810 to reset upward under the action of the third spring 806, the arc-shaped slow-rise bar 808 will reduce the rising speed of the movable plate 807 and the conical deceleration block 810, so that the contact time of the conical deceleration block 810 and the conical limiting hole 805 is prolonged, prompting the model airplane body 15 to stop moving as soon as possible. In this way, the user can complete the operation of releasing the model airplane body 15.

Claims

1. An aviation model for aviation sports, comprising a mobile base (1), characterized in that: A mounting shell (2) is provided on the upper side of the top surface of the movable base (1); a through groove (201) is provided on the left side of the middle part of the top surface of the mounting shell (2); a through hole (203) is provided on the right side of the middle part of the top surface of the mounting shell (2); a rotating handle (14) is provided on the front side of the left part of the front end surface of the mounting shell (2); a main shaft (9) is connected to the rear end of the rotating handle (14); the rear end of the main shaft (9) passes through the front end surface of the inner wall of the mounting shell (2) and extends to its inner cavity; the rear end of the main shaft (9) is limited by the rear end surface of the inner wall of the mounting shell (2) and is rotatably connected thereto; an adjustment component (3) is provided on the left side of the inner cavity of the mounting shell (2); a driving rack (5) is provided on the top surface of the inner wall of the mounting shell (2); A push hammer (6) is fixed to the right side of the middle of the top surface of the rack (5) through a connecting column, the connecting column passes through the through slot (201) and is slidably connected to the through slot (201), and the circumferential outer wall of the push hammer (6) is in active contact with the left end surface of the force-bearing plate (11); the right sides of the front and rear end surfaces of the driving rack (5) are provided with receiving plates (16), the left end surface of the receiving plate (16) is provided with a first spring (18), the right side of the inner cavity of the installation shell (2) is provided with a lifting component (7), the middle part of the top surface of the installation shell (2) is provided with an aircraft model body (15), the middle part of the bottom surface of the aircraft model body (15) is provided with a force-bearing plate (11), and the front side of the middle part of the bottom surface of the aircraft model body (15) and the front and rear sides of the rear part of the bottom surface are provided with a slow-down component (8); The adjustment assembly (3) comprises a mounting sleeve (301) sleeved on the circumferential outer wall of the main shaft (9), the circumferential outer wall of the mounting sleeve (301) being provided with a plurality of arc-shaped gears (302) at equal intervals in a linear manner, the number of teeth of the arc-shaped gears (302) increasing from the back to the front; Bolts (303) are threadedly connected to the front and rear sides of the left circumferential outer wall of the installation sleeve (301), and the right end of the bolt (303) passes through the left circumferential outer wall of the installation sleeve (301) and extends to the inner cavity thereof and is in active contact with the inner cavity; The lifting assembly (7) comprises an active shaped wheel (710) sleeved on the rear side of the circumferential outer wall of the main shaft (9), a driven shaft (701) restricted by the right side of the rear end face of the inner wall of the mounting shell (2) and rotatably connected thereto, and a U-shaped positioning plate (704) arranged on the lower side of the through hole (203), a transmission belt (709) sleeved on the middle part of the circumferential outer wall of the active shaped wheel (710), a driven shaped wheel (711) sleeved on the rear side of the circumferential outer wall of the driven shaft (701), and the middle part of the circumferential outer wall of the driven shaped wheel (711) and the middle part of the circumferential outer wall of the active shaped wheel (710) are both The driven shaft (701) is frictionally driven with the inner wall of the conveyor belt (709); a lifting gear (703) is sleeved in the middle of the circumferential outer wall; a transmission rack (702) is slidably connected to the inner wall of the U-shaped positioning plate (704); the lifting gear (703) is meshed with the transmission rack (702); a T-shaped receiving rod (712) is provided in the middle of the upper and lower end surfaces of the transmission rack (702); the upper end of the T-shaped receiving rod (712) is connected to a first rotating frame (707); a fixed wheel (708) is rotatably connected in the middle of the first rotating frame (707); The middle part of the circumferential outer wall of the T-shaped receiving rod (712) is slidably connected with a driving tooth (706) adapted to the lifting gear (703), and the lifting gear (703) is in active contact with the driving tooth (706). The inner side of the right end surface of the driving tooth (706) and the upper and lower sides of the middle part of the right end surface of the transmission rack (702) are provided with a bearing plate (713), and the inner end surfaces of the two corresponding bearing plates (713) are connected with a second spring (705); The slow-descent assembly (8) comprises a load-bearing rod (801) arranged at the front side of the middle part of the bottom surface of the aircraft model body (15) and at the left and right sides of the rear part of the bottom surface of the aircraft model body (15); a connecting tube (802) is slidably connected to the lower side of the circumferential outer wall of the load-bearing rod (801); a second rotating frame (804) is arranged at the lower end of the connecting tube (802); a plurality of third springs (806) are densely distributed on the top surface of the second rotating frame (804); sliding holes (809) are provided in the middle part of the bottom surface of the connecting tube (802) and the middle part of the second rotating frame (804); an I-shaped roller (803) is rotatably connected to the middle part of the second rotating frame (804); the I-shaped roller (803) is slidably matched with the slide groove (202); A movable plate (807) is provided in the middle of the bottom surface of the load-bearing rod (801), and the lower end of the movable plate (807) passes through the bottom surface of the sliding hole (809) and extends to the upper side of the circumferential outer wall of the I-shaped roller (803) and is connected to a conical speed reduction block (810). A plurality of conical limiting holes (805) matching the conical speed reduction blocks (810) are densely distributed in the middle of the circumferential outer wall of the I-shaped roller (803), and the outer wall of the conical speed reduction block (810) is in frictional contact with the inner wall of the conical limiting hole (805).

2. The aviation model for aviation sports according to claim 1, characterized in that: A baffle plate (10) is provided on the left side of the middle part of the top surface of the installation shell (2), and slide grooves (202) are provided on both the front and rear sides of the middle part of the top surface of the installation shell (2), and the left and right sides of the slide groove (202) are arranged in an inverted circular structure, and the baffle plate (10) and the slide groove (202) cooperate to stably place the model aircraft body (15) on the installation shell (2).

3. The aviation model for aviation sports according to claim 1, characterized in that: The left and right end surfaces of the movable plate (807) are densely covered with a plurality of arc-shaped slow-rising strips (808), the arc-shaped slow-rising strips (808) are made of rubber material, and the arc-shaped slow-rising strips (808) are in frictional contact with the inner wall of the sliding hole (809).

4. The aviation model used in aviation sports according to any one of claims 1 to 3, characterized in that: A ball bearing (17) is embedded in the middle of the top surface of the movable base (1), and the upper side of the ball bearing (17) is connected and fixed to the bottom surface of the mounting shell (2). A moving handle (4) is provided on the lower side of the left end surface of the mounting shell (2). A surrounding groove (101) is provided on the top surface of the movable base (1), and fourth springs (13) are provided on both left and right sides of the bottom surface of the mounting shell (2). A sliding plate (12) is provided at the lower end of the fourth spring (13), and the bottom surface of the sliding plate (12) is slidably connected to the bottom surface of the inner wall of the surrounding groove (101).

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