A bomb-aiming device

Abstract

The utility model discloses a kind of bomb-throwing devices, including the fixed frame adhered to the bottom of wing, the bomb-throwing device connected with fixed frame by clamping structure, and the missile rack for fixing missile, the missile rack one-key type plug-in is limited at the bottom of bomb-throwing device, the bomb-throwing device includes shell, the drive member of being able to realize to the drive member of missile rack plug-in limit in shell;Elastic structure is provided in the bomb-throwing device, which can push out missile rack after being released from limit position;The utility model is by being provided with independent fixed frame, missile rack and the main body structure of a kind of bomb-throwing device connecting both, not occupying internal space of model aircraft, by setting up missile rack, only need to insert missile rack into the slot in the bottom of a kind of bomb-throwing device when loading, can complete fixation, and player can replace different specifications missile rack, can improve DIY flexibility, reduce player loading and custom throwing object operation difficulty.

Description

Technical Field

[0001] This utility model relates to the field of aircraft model accessories technology, specifically a bombing device. Background Technology

[0002] In the current field of aircraft and model aircraft applications, model aircraft enthusiasts are increasingly demanding more functional expansion and diverse gameplay options for their equipment.

[0003] Traditional bombing methods rely on the cabin space of aircraft or model airplanes, and airdrop is achieved by controlling the opening and closing of the cabin doors. However, for special-shaped items, such as missile models or irregular large parts, the cabin space is difficult to adapt, making the airdrop operation inconvenient and slow.

[0004] In addition, existing bombing devices rely on the internal control board of the aircraft or model aircraft for control, and players need to adapt and modify them for different models, which can easily lead to problems such as high modification difficulty and poor compatibility. Utility Model Content

[0005] The purpose of this utility model is to provide a bomb-throwing device, which consists of an independent fixed frame, a missile rack, and a main structure of a bomb thrower connecting the two. The bomb thrower is equipped with a drive component and an elastic structure, and has an independent control circuit board. It is easy to operate, throws quickly, and can throw various types of products. It can reduce the difficulty of modification for players and meet the needs of model aircraft players for expanding the functionality of the equipment and enriching the gameplay.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a bomb-dropping device, comprising a fixed frame attached to the bottom of an aircraft wing, a bomber connected to the fixed frame via a snap-fit ​​structure, and a missile rack for fixing a missile, wherein the missile rack is one-click inserted and limited at the bottom of the bomber; The bomb dispenser includes a housing, a drive unit disposed inside the housing that can limit the insertion of the missile rack, and a circuit board that controls the extension and retraction of the drive unit. The bomb dispenser is provided with an elastic structure that can push the missile rack outward after the limit is released.

[0007] Preferably, the driving component includes a push block, the bottom of the bomb dispenser is provided with a slot for inserting a missile rack, the top of the missile rack is provided with a hanging ring, one end of the push block passes through the outer shell and is inserted into the hanging ring and abuts against the outer wall of the slot, and the outer shell is provided with a sliding reset structure for pushing horizontal movement.

[0008] Preferably, the sliding reset structure includes a limiting piece integrally formed in the inner cavity of the outer shell, a sliding groove is provided on one side of the limiting piece, a connecting block is integrally formed on one end of the push block, a push rod is integrally formed on one side of the connecting block, the push rod and the push block are slidably connected in two sets of sliding grooves respectively, a compression spring is sleeved on the outer wall of the push rod, one end of the compression spring is pressed against the sliding sleeve, and the other end of the compression spring is pressed against one of the limiting pieces.

[0009] Preferably, the driving component further includes a gear swing arm that provides power for the sliding of the push rod. The outer wall of the connecting block is provided with a notch, and a swing block is provided in the notch for contacting the gear swing arm. Rotating rods are fixed on both sides of the swing block, and the rotating rods are rotatably connected in the notch. A torsion spring is sleeved on the outer wall of the rotating rod.

[0010] Preferably, the side of the swing block away from the push block is provided with a bevel, the gear swing arm includes an arc-shaped end and a gear end, the gear end is rotatably connected to the housing through a rotating shaft, the arc-shaped end contacts the side wall of the push block, and the housing is provided with a drive structure for driving the gear swing arm to rotate.

[0011] Preferably, the drive structure includes a motor, a drive gear is fixed to the output end of the motor, a second-stage reduction gear and a third-stage reduction gear are rotatably connected inside the housing, the drive gear meshes with the second-stage reduction gear, a first transmission wheel is fixed to the top of the shaft of the second-stage reduction gear, the third-stage reduction gear meshes with the first transmission wheel, a second transmission wheel is fixed to the outer wall of the shaft of the third-stage reduction gear, and the second transmission wheel meshes with the gear swing arm.

[0012] Preferably, the drive unit further includes two sets of blocks fixed inside the housing, the two sets of blocks being located at the two endpoints of the swing stroke of the gear arm.

[0013] Preferably, the elastic structure includes a top block, and both ends of the inner cavity of the outer shell are surrounded by longitudinal grooves. A slider is fixed to one end of the top block, and a spring is fixed to one side of the slider. One end of the spring is fixedly connected to the top of the longitudinal groove, and the other end of the top block penetrates the outer shell.

[0014] Preferably, the snap-fit ​​structure includes a notch on the top of the housing and a limiting groove communicating with the notch, and the bottom of the fixing frame is provided with an integrally formed protrusion. The protrusion is inserted into the housing through the notch and snaps into the limiting groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model transfers the bombing function from the model aircraft cabin to the bottom of the wing by setting up an independent fixed frame, missile rack and bomber main structure connecting the two, without occupying the internal space of the model aircraft. It can be adapted to various types of projectiles such as missile models and irregular large parts, thus expanding the application scenarios of bombing.

[0016] 2. By setting up a missile rack, this utility model can be fixed by simply inserting the missile rack into the slot at the bottom of the bomb launcher when loading missiles. Players can also replace different specifications of missile racks, which can improve DIY flexibility and reduce the difficulty of loading missiles and customizing projectiles. Attached Figure Description

[0017] Figure 1 This is a schematic diagram showing the location of the bomb dispenser of this utility model installed at the bottom of the wing; Figure 2 This is a schematic diagram of the connection structure between the bomb dispenser, the mounting frame, and the missile rack of this utility model; Figure 3 This is a schematic diagram of the internal driving component of the outer shell of this utility model; Figure 4 This is a schematic diagram of the pusher block of this utility model; Figure 5 This is a schematic diagram of the drive structure of this utility model; Figure 6 This is a structural schematic diagram of the fixing frame of this utility model; Figure 7 This is the circuit diagram of the motor drive circuit of this utility model; Figure 8 This is the circuit diagram of the power supply voltage regulator circuit of this utility model; Figure 9 This is the circuit diagram of the microcontroller main control circuit of this utility model; Figure 10 This is a circuit diagram of the input signal processing circuit of this utility model; Figure 11 This is a circuit diagram of the external interface circuit of this utility model.

[0018] In the diagram: 1. Mounting frame; 2. Missile mount; 3. Bomb dispenser; 4. Clip-on structure; 301. Housing; 302. Drive component; 303. Circuit board; 304. Elastic structure; 3021, Push block; 3022, Groove; 3023, Hanging ring; 3024, Limiting piece; 3025, Slide groove; 3026, Connecting block; 3027, Push rod; 3028, Compression spring; 3029, Gear swing arm; 3030, Notch; 3031, Swing block; 3032, Rotating rod; 3033, Torsion spring; 3034, Inclined edge; 3029a, arc-shaped end; 3029b, gear end; 3035, Motor; 3036, Drive gear; 3037, Second-stage reduction gear; 3038, Third-stage reduction gear; 3039, First transmission gear; 3040, Second transmission gear; 305, Block; 3041, top block; 3042, longitudinal groove; 3043, slider; 3044, spring; 401. Notch; 402. Limiting groove; 403. Protrusion. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-11 This utility model provides a technical solution: a bomb-throwing device, including a fixed frame 1 attached to the bottom of the wing, a bomb thrower 3 connected to the fixed frame 1 via a snap-fit ​​structure 4, and a missile rack 2 for fixing the missile, wherein the missile rack 2 is one-click inserted and limited at the bottom of the bomb thrower 3. like Figure 3 and Figure 4 As shown, the bottom of the push block 3021 has an angled contact surface. Regardless of whether it is in the unlocked or locked state, the missile mount 2 can be inserted into the bomb dispenser 3. When the missile mount 2 contacts the angled contact surface at the bottom of the push block 3021, it will force the push block 3021 to move to the right. This enables one-click insertion and limiting, making installation convenient.

[0021] The bomb launcher 3 includes a housing 301, a drive component 302 disposed inside the housing 301 to limit the insertion of the missile mount 2, and a circuit board 303 to control the extension and retraction of the drive component 302. The bomb launcher 3 is provided with an elastic structure 304 that can push the missile mount 2 outward after the limit is released.

[0022] The mounting bracket 1 serves as the connecting carrier to the wing of the model aircraft. It is fixed to the bottom of the wing by adhesive and then connected to the main body of the bomber 3 by the snap-fit ​​structure 4, so that the bomber 3 is stably mounted under the wing. The missile rack 2 is used to carry missile models and other projectiles. Its detachable connection with the bomber 3 enables quick assembly and replacement of projectiles. The drive component 302 inside the bomber 3, under the control of the circuit board 303, completes the locking and unlocking of the missile rack 2. After the limit is released, the elastic structure 304 pushes the missile rack 2 and the projectile outward by its own elasticity to realize the bombing operation.

[0023] By mounting the entire device on the bottom of the wing, it does not occupy the internal space of the model aircraft, expands the range of projectile compatibility, and has an independent built-in circuit board 303 to control the drive component 302. It does not need to rely on the model aircraft's own internal control board, avoiding players from making complex adaptation modifications for different model aircraft, reducing the difficulty of modification and compatibility issues.

[0024] The driving component 302 includes a push block 3021. The bottom of the bomb dispenser 3 is provided with a slot 3022 for inserting the missile mount 2. The top of the missile mount 2 is provided with a hanging ring 3023. One end of the push block 3021 passes through the outer shell 301 and is inserted into the hanging ring 3023 and abuts against the outer wall of the slot 3022. The outer shell 301 is provided with a sliding reset structure for pushing horizontal movement.

[0025] During loading, the top of the missile mount 2 is aligned with the slot 3022 at the bottom of the bomb dispenser 3 and inserted. The hanging ring 3023 on the top of the missile mount 2 moves to the position of the push block 3021 as it is inserted. The push block 3021 moves horizontally under the action of the inclined surface of 3021, and one end penetrates the outer shell 301 and inserts into the hanging ring 3023. At the same time, it abuts against the outer wall of the slot 3022, locking the missile mount 2 onto the bomb dispenser 3. During bomb release, the push block 3021 moves horizontally in the opposite direction under the push of the gear swing arm 3029 and is pulled out from the hanging ring 3023, releasing the limit on the missile mount 2 and completing the unlocking.

[0026] The two sets of sliding grooves 3025 on the limiting plate 3024 provide horizontal sliding tracks for the push block 3021 and the push rod 3027, ensuring the stability of the movement direction of the push block 3021 and avoiding deviation that could lead to limiting failure. The push rod 3027 is fixed to the connecting block 3026 and moves synchronously with the push block 3021. When the push block 3021 moves in the locking direction, the push rod 3027 drives the sliding sleeve to compress the compression spring 3028, causing the compression spring 3028 to store elastic potential energy. When the driving component 302 releases the driving force on the push block 3021, the compression spring 3028 releases its elastic potential energy, pushing the sliding sleeve and the push rod 3027 to move in the opposite direction, causing the push block 3021 to reset to its initial position, preparing for the next loading limit.

[0027] The sliding reset structure includes a limiting piece 3024 integrally formed in the inner cavity of the outer shell 301. A sliding groove 3025 is provided on one side of the limiting piece 3024. A connecting block 3026 is integrally formed at one end of the push block 3021. A push rod 3027 is integrally formed on one side of the connecting block 3026. The push rod 3027 and the push block 3021 are slidably connected in two sets of sliding grooves 3025 respectively. A compression spring 3028 is sleeved on the outer wall of the push rod 3027. One end of the compression spring 3028 abuts against the sliding sleeve, and the other end of the compression spring 3028 abuts against one of the limiting pieces 3024.

[0028] The driving component 302 also includes a gear swing arm 3029 that provides power for the sliding of the push rod 3027. The outer wall of the connecting block 3026 has a notch 3030. A swing block 3031 is provided in the notch 3030 for abutting against the gear swing arm 3029. Rotating rods 3032 are fixed on both sides of the swing block 3031. The rotating rods 3032 are rotatably connected in the notch 3030. A torsion spring 3033 is sleeved on the outer wall of the rotating rods 3032.

[0029] The drive structure drives the gear end 3029b of the gear swing arm 3029 to rotate around the pivot. The gear swing arm 3029 as a whole swings around the pivot, and its arc-shaped end 3029a contacts the side wall of the swing block 3031 during the swing process, pushing the push block 3021 to move horizontally through mechanical contact. When the gear swing arm 3029 swings in the unlocking direction, that is, when it swings counterclockwise, the arc-shaped end 3029a of the gear swing arm 3029 contacts the left side of the swing block 3031 and pushes the swing block 3031 to the right. The swing block 3031 abuts against the connecting block 3026, causing the connecting block 3026 to move to the right, driving the push block 3021 to move to the right against the elastic force of the compression spring 3028, so that the push block 3021 moves towards the outer shell 301. The gear arm retracts inward and disengages from the hanging ring 3023, thus unlocking the gear. When the gear arm 3029 swings in the locking direction, i.e., clockwise, the arc-shaped end 3029a of the gear arm 3029 contacts the right side of the swing block 3031. Since the right side of the swing block 3031 is a slope and the left side of the swing block 3031 has a notch 3030, after the swing block 3031 contacts the gear arm 3029, it rotates to the left under the action of the rotating rod 3032. The torsion spring 3033 stores force. When the gear arm 3029 continues to swing to the left, it gradually disengages from the swing block 3031. The swing block 3031 resets through the torsion spring 3033, thus avoiding the gear arm 3029 and not affecting the reset of the gear arm 3029.

[0030] The swing block 3031 has a bevel 3034 on the side away from the push block 3021. The gear swing arm 3029 includes an arc-shaped end 3029a and a gear end 3029b. The gear end 3029b is rotatably connected to the housing 301 via a rotating shaft. The arc-shaped end 3029a contacts the side wall of the push block 3021. The housing 301 is provided with a drive structure for driving the gear 3036 swing arm 3029 to rotate.

[0031] The drive structure includes a motor 3035, with a drive gear 3036 fixed to the output end of the motor 3035. A secondary reduction gear 3037 and a tertiary reduction gear 3038 are rotatably connected inside the housing 301. The drive gear 3036 meshes with the secondary reduction gear 3037. A first transmission wheel 3039 is fixed to the top of the shaft of the secondary reduction gear 3037. The tertiary reduction gear 3038 meshes with the first transmission wheel 3039. A second transmission wheel 3040 is fixed to the outer wall of the shaft of the tertiary reduction gear 3038. The second transmission wheel 3040 meshes with a gear swing arm 3029.

[0032] After receiving the bomb-dropping command, circuit board 303 starts motor 3035. The drive gear 3036 at the output end of motor 3035 rotates, driving the secondary reduction gear 3037 to rotate through gear meshing. The first transmission wheel 3039 at the top of the shaft of the secondary reduction gear 3037 rotates synchronously with the secondary reduction gear 3037, further meshing to drive the tertiary reduction gear 3038. The second transmission wheel 3040 on the outer wall of the shaft of the tertiary reduction gear 3038 rotates with the tertiary reduction gear 3038, ultimately driving the gear end 3029b of the gear swing arm 3029 to rotate through gear meshing. The reduction gear set reduces the output speed of motor 3035 while increasing torque, ensuring that the gear swing arm 3029 has sufficient force to push the push block 3021 to move.

[0033] The drive component 302 also includes two sets of blocking blocks 305 fixed inside the housing 301, with the two sets of blocking blocks 305 located at the two ends of the swing stroke of the gear swing arm 3029.

[0034] The two sets of blocking blocks are located at position 305 as follows Figure 3 As shown, when the gear swing arm 3029 swings and contacts the block 305, the circuit board 303 detects a large current and controls the motor 3035 to stop rotating.

[0035] The elastic structure 304 includes a top block 3041. Both ends of the inner cavity of the outer shell 301 are surrounded by longitudinal grooves 3042. A slider 3043 is fixed to one end of the top block 3041. A spring 3044 is fixed to one side of the slider 3043. One end of the spring 3044 is fixedly connected to the top of the longitudinal groove 3042. The other end of the top block 3041 passes through the outer shell 301.

[0036] During loading, the missile mount 2 is inserted into the slot 3022 at the bottom of the bomb dispenser 3, and its top contacts the end of the top block 3041 that penetrates the outer shell 301. As it is inserted, the top block 3041 is pushed upward. The top block 3041 drives the slider 3043 to slide upward in the longitudinal slot 3042. The slider 3043 compresses the spring 3044, so that the spring 3044 stores elastic potential energy. When the missile mount 2 is locked by the push block 3021 of the drive component 302, the spring 3044 remains in a compressed state, and the elastic potential energy is in a state of waiting to be released. During bombing, the push block 3021 of the drive component 302 is pulled out from the hanging ring 3023 of the missile rack 2, releasing the limit on the missile rack 2; at this time, the spring 3044 releases elastic potential energy, pushing the slider 3043 to slide downward in the longitudinal groove 3042. The slider 3043 drives the top block 3041 to move downward, and the top block 3041 applies a downward pushing force to the missile rack 2, pushing the missile rack 2 and the projectile outward from the groove 3022, completing the bombing.

[0037] The longitudinal groove 3042 provides a fixed track for the up and down sliding of the slider 3043, ensuring that the slider 3043 drives the top block 3041 to move in the vertical direction, avoiding the displacement of the top block 3041 and causing the thrust direction to deviate, and ensuring that the missile rack 2 can be smoothly pushed out in the preset direction.

[0038] The snap-fit ​​structure 4 includes a notch 401 on the top of the outer shell 301 and a limiting groove 402 communicating with the notch 401. The bottom of the fixing frame 1 is provided with an integrally formed protrusion 403. The protrusion 403 is inserted into the outer shell 301 through the notch 401 and snaps into the limiting groove 402.

[0039] When installing the mounting bracket 1, align the protrusion 403 at the bottom of the mounting bracket 1 with the notch 401 at the top of the shell 301 of the bomb dispenser 3, and insert it into the shell 301 along the notch 401; after insertion, as Figure 2 As shown, push the bomb launcher 3 to the right until it is fully pushed. The structure of the fixing frame 1 is as follows. Figure 6 As shown, the protrusion 403 can be locked in the limiting groove 402.

[0040] In use, first fix the mounting bracket 1 to the bottom of the model aircraft wing by adhesive, as a mounting platform for the bomber 3. Align the notch 401 on the top of the shell 301 of the bomber 3 with the protrusion 403 on the bottom of the mounting bracket 1 and insert it. Then push the bomber 3 laterally so that the protrusion 403 is inserted into the limiting groove 402 of the shell 301. The connection between the two is completed by the snap-fit ​​structure 4. After the built-in circuit board 303 of the bomber 3 is powered on, it completes a self-test. The power supply regulator circuit stabilizes the input voltage to 3.3V / 5V to power all components. The microcontroller main control circuit enters standby mode, waiting to receive control commands from the model aircraft remote controller. It does not need to rely on the model aircraft's own internal control board, which can reduce the difficulty of modification compatibility. Players attach the missile model to the missile mount 2 by gluing it on. The top of the missile mount 2 with the missile assembled is aligned with the slot 3022 at the bottom of the bomb dispenser 3 and inserted vertically. During the insertion process, the hanging ring 3023 on the top of the missile mount 2 moves upward with the insertion action. At the same time, the top of the missile mount 2 presses against the top block 3041 of the elastic structure 304 inside the bomb dispenser 3. After being pressed, the top block 3041 drives the slider 3043 to move upward in the longitudinal slot 3042. The slider 3043 compresses the spring 3044, so that the spring 3044 stores elastic potential energy, which is used to prepare for the subsequent push action when the bomb is released. As the missile mount 2 continues to be inserted until the hanging ring 3023 aligns with the push block 3021, the push block 3021, under the pre-tightening force of the compression spring 3028 of the sliding reset structure, automatically passes through the outer shell 301 and inserts into the hanging ring 3023 at one end. At the same time, the push block 3021 abuts against the outer wall of the slot 3022, firmly locking the missile mount 2 onto the bomb dispenser 3, completing the loading process. At this time, the gear swing arm 3029 is reset to its initial position under the action of the torsion spring 3033, and the swing block 3031 is located to the left of the push block 3021, preparing for the unlocking action. Players send bombing commands via the model aircraft remote control. The input signal processing circuit of the bomber 3 receives the commands and transmits them to the microcontroller main control circuit. After the microcontroller determines that the commands are valid, it sends a start signal to the motor 3035 drive circuit. The motor drive circuit controls the motor 3035 to start, and the drive gear 3036 at the output end of the motor 3035 rotates, which drives the secondary reduction gear 3037 to rotate through gear meshing; the first transmission wheel 3039 on the shaft of the secondary reduction gear 3037 rotates synchronously, further meshing to drive the tertiary reduction gear 3038; the second transmission wheel 3040 on the shaft of the tertiary reduction gear 3038 rotates with it, and finally drives the gear end 3029b of the gear swing arm 3029 to rotate around the shaft through gear meshing; During the rotation of the gear swing arm 3029, its arc-shaped end 3029a presses against the swing block 3031 on the side wall of the push block 3021, such as... Figure 4 As shown, the swing block 3031 is subjected to a force to the right and moves horizontally to the right. The push rod 3027 compresses the spring 3028 and stores the reset potential energy. The push block 3021 is gradually pulled out from the hanging ring 3023 of the missile rack 2, releasing the limitation on the missile rack 2. The gear swing arm 3029 continues to rotate and, after disengaging from the contact with the swing block 3031, the swing block 3031 automatically resets under the action of the torsion spring 3033. When the gear swing arm 3029 rotates to contact one of the blocking blocks 305, the load on the motor 3035 increases and the current rises instantaneously. After the current detection module of the circuit board 303 captures the signal, the microcontroller immediately controls the motor 3035 to stop working to avoid the gear swing arm 3029 from rotating excessively and damaging the components. After the push block 3021 is released from its limit, the compressed spring 3044 in the elastic structure 304 releases its elastic potential energy, pushing the slider 3043 to slide downward along the longitudinal groove 3042. The slider 3043 drives the top block 3041 to move vertically downward. The top block 3041 applies a downward pushing force to the missile rack 2, completely pushing the missile rack 2 and the missile model out of the slot 3022 at the bottom of the bomb dispenser 3, thus realizing the bomb release. After the motor 3035 stops, the compression spring 3028 of the sliding reset structure releases its potential energy, pushing the push rod 3027 and the connecting block 3026 to move in the opposite direction, driving the push block 3021 to reset to its initial position along the slide groove 3025.

[0041] The circuit board includes a motor drive circuit, a power supply regulator circuit, a microcontroller main control circuit, an input signal processing circuit, and an external interface circuit. The motor drive circuit, power supply regulator circuit, input signal processing circuit, and external interface circuit are all electrically connected to the microcontroller main control circuit. The circuit diagram is shown below. Figures 7-11 As shown.

[0042] like Figure 8 As shown, after power-on, the power supply voltage regulator circuit works first: using an LDO step-down chip U1, the voltage input to the model aircraft is stabilized at 3.3V, which powers the microcontroller main control circuit and the input signal processing circuit, ensuring the voltage stability of each module; at the same time, the VM pin of the motor drive circuit is connected to the model aircraft power voltage, and the M+ and M- pins are connected to the motor 3035 to complete the circuit pre-start. After loading, the MCU pin of the microcontroller main control circuit is in a low-level standby state, the input signal processing circuit is pulled up to VCC 3.3V through resistor R2, the PWMA and PWMB pins of the motor drive circuit are at a low level, the SA8311S chip has no output, and the motor 3035 remains stationary. The player sends a bomb-throwing command via remote control. The signal is received at the RX pin of the input signal processing circuit, and after current limiting by resistor R4, it is transmitted to the microcontroller. Figure 9 The PA0 pin is shown; after the microcontroller determines that the instruction is valid, it outputs a PWM signal to the PWMA pin of the motor 3035 drive circuit, and the SA8311S chip drives the motor 3035 to rotate forward.

[0043] When the gear rocker arm 3029 touches the block 305, the load on the motor 3035 increases, and current flows through the motor 3035 drive circuit. Figure 7 The resistor R3 in the circuit generates a voltage drop. The microcontroller detects the sudden current change through the ADC1 pin and immediately pulls the PWMA pin level low, causing the 3035 motor to stop working.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bomb-throwing device, characterized in that: Includes a mounting bracket (1) attached to the bottom of the wing, a bomb dispenser (3) connected to the mounting bracket (1) via a snap-fit ​​structure (4), and a missile rack (2) for fixing the missile, wherein the missile rack (2) is one-click plug-in limited at the bottom of the bomb dispenser (3); The bomb launcher (3) includes a housing (301), a drive unit (302) disposed inside the housing (301) to limit the insertion of the missile rack (2), and a circuit board (303) for controlling the extension and retraction of the drive unit (302). The bomb launcher (3) is provided with an elastic structure (304) that can push the missile rack (2) outward after the limit is released.

2. The bomb-throwing device according to claim 1, characterized in that: The drive unit (302) includes a push block (3021). The bottom of the bomb dispenser (3) is provided with a slot (3022) for inserting the missile rack (2). The top of the missile rack (2) is provided with a hanging ring (3023). One end of the push block (3021) passes through the outer shell (301) and is inserted into the hanging ring (3023) and abuts against the outer wall of the slot (3022). The outer shell (301) is provided with a sliding reset structure for pushing horizontal movement.

3. A bomb-throwing device according to claim 2, characterized in that: The sliding reset structure includes a limiting piece (3024) integrally formed in the inner cavity of the outer shell (301). A sliding groove (3025) is provided on one side of the limiting piece (3024). A connecting block (3026) is integrally formed at one end of the push block (3021). A push rod (3027) is integrally formed on one side of the connecting block (3026). The push rod (3027) and the push block (3021) are slidably connected in two sets of sliding grooves (3025). A compression spring (3028) is sleeved on the outer wall of the push rod (3027). One end of the compression spring (3028) abuts against the sliding sleeve, and the other end of the compression spring (3028) abuts against one of the limiting pieces (3024).

4. A bomb-throwing device according to claim 3, characterized in that: The drive unit (302) also includes a gear swing arm (3029) that provides power for the sliding of the push rod (3027). The outer wall of the connecting block (3026) is provided with a notch (3030). A swing block (3031) is provided in the notch (3030) for abutting against the gear swing arm (3029). Rotating rods (3032) are fixed on both sides of the swing block (3031). The rotating rods (3032) are rotatably connected in the notch (3030). A torsion spring (3033) is sleeved on the outer wall of the rotating rod (3032).

5. A bomb-throwing device according to claim 4, characterized in that: The swing block (3031) has a bevel (3034) on the side away from the push block (3021). The gear swing arm (3029) includes an arc-shaped end (3029a) and a gear end (3029b). The gear end (3029b) is rotatably connected to the housing (301) through a rotating shaft. The arc-shaped end (3029a) contacts the side wall of the push block (3021). The housing (301) is provided with a drive structure for driving the gear (3036) swing arm (3029) to rotate.

6. A bomb-throwing device according to claim 5, characterized in that: The drive structure includes a motor (3035), the output end of which is fixed with a drive gear (3036). A secondary reduction gear (3037) and a tertiary reduction gear (3038) are rotatably connected inside the housing (301). The drive gear (3036) meshes with the secondary reduction gear (3037). A first transmission wheel (3039) is fixed to the top of the shaft of the secondary reduction gear (3037). The tertiary reduction gear (3038) meshes with the first transmission wheel (3039). A second transmission wheel (3040) is fixed to the outer wall of the shaft of the tertiary reduction gear (3038). The second transmission wheel (3040) meshes with a gear swing arm (3029).

7. A bomb-throwing device according to claim 6, characterized in that: The drive unit (302) also includes two sets of blocks (305) fixed in the housing (301), and the two sets of blocks (305) are located at the two ends of the swing stroke of the gear swing arm (3029).

8. A bomb-throwing device according to claim 1, characterized in that: The elastic structure (304) includes a top block (3041), and both ends of the inner cavity of the outer shell (301) are surrounded by longitudinal grooves (3042). A slider (3043) is fixed to one end of the top block (3041), and a spring (3044) is fixed to one side of the slider (3043). One end of the spring (3044) is fixedly connected to the top of the longitudinal groove (3042), and the other end of the top block (3041) penetrates through the outer shell (301).

9. A bomb-throwing device according to claim 1, characterized in that: The snap-fit ​​structure (4) includes a notch (401) on the top of the outer shell (301) and a limiting groove (402) communicating with the notch (401). The bottom of the fixing frame (1) is provided with an integrally formed protrusion (403). The protrusion (403) is inserted into the outer shell (301) through the notch (401) and then snapped into the limiting groove (402).

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