An automatic grenade launcher fixing and quick dismounting mechanism for unmanned aerial vehicle

Abstract

The application discloses an automatic grenade launcher fixing and quick dismounting mechanism for a UAV, which comprises a front end dismounting mechanism and a rear end dismounting mechanism. The front end dismounting mechanism comprises a front base connected with a grenade launcher air guide hoop, a sliding clamping iron for locking the front base and the grenade launcher air guide hoop, a clamping iron spring for pushing the sliding clamping iron and locking the sliding clamping iron and the grenade launcher air guide hoop, and a rotating push handle for pushing the sliding clamping iron to slide. The rear end dismounting mechanism comprises a rear base provided with a ratchet chamber for accommodating a forward ratchet at one end of a rotating cover, a rotating cover plate for fixing a grenade launcher tail support on the rear base, a ratchet strip provided with a reverse ratchet for engaging with the rotating cover plate to realize locking, a supporting mechanism for pushing the ratchet strip to engage with the rotating cover plate, and a lock opener for pushing the ratchet strip to rotate to separate from the rotating cover plate. The application realizes firm combination between a gun and a UAV hanger and quick installation and dismounting of the gun.

Description

Technical Field

[0001] This invention belongs to the field of automatic weapon structure design, and specifically relates to an automatic grenade launcher fixing and quick disassembly mechanism for unmanned aerial vehicles. Background Technology

[0002] In modern warfare, drones possess advantages such as the ability to perform missions exceeding human physiological limits or posing relative dangers, low requirements for the operational environment, and strong battlefield survivability. Firearms are the most widely deployed and numerous type of weaponry, characterized by ease of use, low cost, high precision, and sustained firepower. Drones equipped with firearms will simultaneously possess the precision firepower of firearms and the mobility, flexibility, and stealth of drones. This makes them suitable not only for special operations, urban warfare, and counter-terrorism operations, but also for counter-drone warfare in the future informationized battlefield. Therefore, the arming of drones with firearms has become an important direction in the weaponization of drones. In recent years, countries around the world have launched their own armed drones. Duke Robotics has developed the TIKAD drone, which can carry various infantry weapons such as pistols, submachine guns, and 40mm grenade launchers, and is equipped with a dedicated mounting platform system to absorb recoil after weapon firing. In April 2019, ASISGUARD launched the SONGAR drone, equipped with a dedicated drone machine gun (DMMG) and a gun mounting stabilization system (GSS). The stability, safety, and firearm accuracy of drones are all closely related to the design of the pylon platform, and the interface design between the pylon and the weapon directly affects the strength of the connection between the weapon and the pylon when firing in the air.

[0003] The current interface design between the drone mounting platform and the firearms uses various threaded fasteners for connection. This connection and disassembly method relies on various tools and is cumbersome to assemble, making equipment replacement and maintenance extremely inconvenient, which in turn leads to a reduction in combat efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic grenade launcher fixing and quick disassembly mechanism for drones, so as to achieve a firm connection between the firearm and the drone mount and to enable the rapid installation and disassembly of the firearm.

[0005] The technical solution to achieve the purpose of this invention is as follows:

[0006] An automatic grenade launcher fixing and quick disassembly mechanism for unmanned aerial vehicles (UAVs) includes: a front disassembly mechanism and a rear disassembly mechanism for connecting to the UAV mount and for disassembling the grenade launcher gas block and the grenade launcher tailstock, respectively.

[0007] The front-end disassembly and assembly mechanism includes:

[0008] A front base for connecting to a drone mount and engaging with a grenade launcher gas clamp.

[0009] A sliding catch that can slide within the front base to lock the front base to the gas block of the grenade launcher.

[0010] A locking spring is installed between the front base and the sliding locking block to push the sliding locking block and lock it against the gas block of the grenade launcher.

[0011] A rotating push handle that connects to and can push the sliding block to slide, and works with the front base to limit the position of the sliding block after unlocking;

[0012] The rear-end disassembly and assembly mechanism includes:

[0013] A rear base for connecting to a drone mount and equipped with a ratchet chamber to accommodate the forward ratchet at one end of the rotating top cover.

[0014] The other end is hinged to the rear base to secure the grenade launcher tailstock to the rear base via a rotating top cover.

[0015] A ratchet rack is installed in the ratchet chamber and equipped with reverse ratchet teeth to engage with the rotating upper cover plate to achieve locking.

[0016] A support mechanism that provides elastic thrust to the ratchet rack to engage it with a rotating top cover plate.

[0017] A lock pick used to rotate a ratchet rack to separate it from a rotating top cover.

[0018] The significant advantages of this invention compared to existing technologies are:

[0019] (1) Through the structural design of the quick assembly and disassembly mechanism, the center of gravity of the entire mechanism can be located on the gun body axis, ensuring that the UAV rack will not be subjected to additional lateral overturning force and torque, thereby ensuring the safety and stability of the entire combat equipment.

[0020] (2) Through the cooperation of the sliding locking block and the locking block groove, the gas guide block and the one-way self-locking effect of the ratchet arc and the ratchet rack, the whole mechanism is firmly locked, ensuring the reliability of the connection during the firing process.

[0021] (3) With the design of threadless fasteners, the overall structure of the mechanism is simple and easy to operate, enabling toolless quick assembly and disassembly of the grenade launcher, improving combat efficiency and enhancing battlefield mobility. Attached Figure Description

[0022] Figure 1 Schematic diagram of the locking assembly for the automatic grenade launcher (disconnected view of the model).

[0023] Figure 2 A schematic diagram of fixing the air guide clamp to the front-end disassembly and assembly mechanism.

[0024] Figure 3 This is an exploded view of the front-end assembly / disassembly mechanism.

[0025] Figure 4 This is a half-section view of the front base.

[0026] Figure 5 This is a cross-sectional view of the assembly relationship between the air guide clamp and the semi-circular limiting groove.

[0027] Figure 6 This is a cross-sectional view showing the positional relationship between the limiting groove and the push handle groove.

[0028] Figure 7 This is a cross-sectional view showing the positional relationship between the push handle groove and the locking groove.

[0029] Figure 8 This is a cross-sectional view showing the positional relationship between the locking groove and the semi-circular limiting groove.

[0030] Figure 9 This is a schematic diagram of the sliding catch structure.

[0031] Figure 10 This is a schematic diagram of the rotating pusher structure.

[0032] Figure 11 A cross-sectional view of the assembly relationship of the front base, sliding catch, and rotating push handle (when unlocking).

[0033] Figure 12 A sectional view of the assembly relationship of the front base, sliding catch, and rotating push handle (when locked).

[0034] Figure 13 A schematic diagram of the rear-end disassembly and assembly mechanism for fixing the tail support.

[0035] Figure 14 This is an exploded view of the rear disassembly and assembly mechanism.

[0036] Figure 15 This is a schematic diagram of the rear base structure.

[0037] Figure 16 This is a schematic diagram of the internal cavity structure of the ratchet chamber.

[0038] Figure 17 This is a schematic diagram of the outer outline of the ratchet.

[0039] Figure 18 This is a schematic diagram of the rotating top cover structure.

[0040] Figure 19 This is a schematic diagram of a ratchet rack structure.

[0041] Figure 20 This is a schematic diagram of the lock pick structure.

[0042] Figure 21 This is a schematic diagram of the side cover plate structure.

[0043] Figure 22 This is a schematic diagram of the support plate structure.

[0044] Figure 23 This is a cross-sectional view of the assembly relationship of the ratchet arc, ratchet rack, support plate, and side cover plate.

[0045] Figure 24 This is a cross-sectional view of the assembly relationship between the unlocking device and the slide (before installation).

[0046] Figure 25 This is a sectional view of the assembly relationship between the unlocking device and the slide (after installation).

[0047] Figure 26 A sectional view of the installation relationship between the unlocking device and the slide (when unlocking). Detailed Implementation

[0048] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0049] This embodiment provides a mechanism for fixing and quickly assembling an automatic grenade launcher for an unmanned aerial vehicle (UAV), comprising a front-end assembly / disassembly mechanism and a rear-end assembly / disassembly mechanism. The front-end assembly / disassembly mechanism consists of a front base 1, a sliding catch 2, a catch spring 3, and a rotating push handle 4; the rear-end assembly / disassembly mechanism consists of a rear base 5, a rotating upper cover plate 6, a cover plate shaft 7, a ratchet rack 8, a ratchet rack shaft 9, a lock release 10, a lock release spring 11, a lock release limit pin 12, a side cover plate 13, a side cover plate pin 14, a support plate 15, a support plate shaft 16, and a support plate spring 17.

[0050] The diagram specifies that the direction in which the projectile is fired from the muzzle is the "front side," and the opposite direction is the "rear side"; the direction closer to the barrel axis is the "inner side," and the direction farther from the barrel axis is the "outer side."

[0051] like Figure 3 As shown, the front base 1 is welded together from a mounting bracket connecting plate 1a and a front base body 1h. The mounting bracket connecting plates 1a are distributed on the left and right sides of the front base body 1h, with two plates on each side. Each mounting bracket connecting plate 1a has two horizontally arranged threaded holes for threaded connection with the drone mounting bracket, thereby fixing the entire front-end assembly / disassembly mechanism to the mounting bracket. Figure 4 As shown, the front base body 1h is a cuboid with two semi-circular limiting grooves 1b on its upper bottom surface, arranged symmetrically on the left and right sides, and a tenon 1i is provided at the bottom of the groove. Figure 5 As shown, the lower end latch 19a of the gas block 19 mounted on the barrel 18 is placed into the semi-circular limiting groove 1b. The outer surface of the lower end latch 19a mates with the inner surface of the semi-circular limiting groove 1b, and simultaneously, the bottom groove 19b of the lower end latch 19a mates with the corresponding protruding tenon 1i for limiting. Figure 3 As shown, the front end face of the front base body 1h is provided with a locking groove 1c, a push handle groove 1d, and a limiting groove 1e, with two of each type of groove, symmetrically arranged on the left and right. Figure 6 As shown, the push handle groove 1d is a horizontal T-shaped groove, with a vertical groove on the outer side and a horizontal groove on the inner side. The limiting groove 1e is a straight groove located at the top of the horizontal groove of the push handle groove 1d. The upper surface of the horizontal groove of the push handle groove 1d communicates with the lower surface of the limiting groove 1e, and the length of the limiting groove 1e is the same as the length of the horizontal groove of the push handle groove 1d. Figure 8 As shown, the locking groove 1c is an L-shaped groove, with a first spring limiting hole 1f on its outer end face. The rear end face of the locking groove 1c is connected to the front end face of the semi-circular limiting groove 1b. Figure 7 As shown, the front end face of the locking groove 1c is connected to the rear end face of the push handle groove 1d, and the length of the locking groove 1c is longer than that of the push handle groove 1d. Figure 4 As shown, the bottom surface of the front base body 1h is provided with a weight reduction groove 1g, with two on each of the left and right sides.

[0052] like Figure 9 As shown, the sliding catch 2 is a cuboid, of which there are two. The outer end face and the front end face are respectively provided with a second spring limiting hole 2a and a push handle limiting hole 2b. Figure 11 and Figure 12 As shown, the sliding catch 2 is installed in the catch groove 1c of the front base 1 and can slide along the groove. There are two catch springs 3, which are respectively installed in the two catch grooves 1c of the front base 1, and their two ends are respectively placed in the first spring limiting hole 1f and the second spring limiting hole 2a, which can push the sliding catch 2 to slide along the catch groove 1c.

[0053] like Figure 11 and Figure 12 As shown, the cylindrical body 4c of the rotating push handle 4 engages with the push handle limiting hole 2b of the sliding catch 2 and is placed in the push handle groove 1d. The cylindrical body 4c can rotate around its own axis and can also drive the sliding catch 2 to slide along the groove, thereby realizing the opening and closing of the front-end disassembly and assembly mechanism. Figure 10 As shown, the outer surface of the cylindrical body 4c is provided with a first limiting tenon 4a and a second limiting tenon 4b, and the second limiting tenon 4b is arranged symmetrically in pairs about both sides of the cylindrical body 4c. Figure 12 As shown, when the cylindrical body 4c slides within the transverse groove of the push handle groove 1d, its first limiting tenon 4a is precisely positioned within the limiting groove 1e, thus limiting the rotation of the push handle 4 forward and backward to ensure that the push handle 4 does not fall off. Simultaneously, its second limiting tenon 4b is restricted due to the narrowness of the transverse groove of the push handle groove 1d, causing the cylindrical body 4c to rotate only within a certain range. Figure 11As shown, when the cylindrical body 4c slides in the vertical groove of the push handle groove 1d, the first limiting tenon 4a on it disengages from the limiting groove 1e, and the second limiting tenon 4b is released from restriction because the vertical groove of the push handle groove 1d is wider.

[0054] like Figure 15 As shown, the upper end of the rear base 5 is provided with two bracket positioning bosses 5c, symmetrically distributed on both sides of the rear base 5. A bracket connection hole 5k is provided in the middle of the bracket positioning bosses 5c for threaded connection with the UAV bracket, thereby fixing the rear-end disassembly and assembly mechanism to the UAV bracket. The rear base 5 is provided with a tail support limiting groove 5a, which is semi-circular and coaxially engages with the lower semi-circular surface of the outer circle of the automatic grenade launcher tail support 20 for limiting. The rear base 5 is provided with two upper cover plate connection holes 5b, two upper cover plate positioning grooves 5j, and two ratchet chambers 5n, distributed on both sides of the rear base 5. The ratchet chambers 5n are hollow inside. Figure 17 As shown, the upper bottom surface of the ratchet chamber 5n has two first limiting holes 5d, one second limiting hole 5e, and one square hole 5m. The square hole 5m is a through hole and communicates with the inner cavity of the ratchet chamber 5n. Figure 17 and Figure 24 As shown, the front end face of the outer contour of the ratchet chamber 5n (the rear end face of the other ratchet chamber 5n) is provided with a groove 5f. The groove 5f includes two parts: an outer cylindrical groove and an inner rectangular groove. The cylindrical groove is longer than the rectangular groove. The middle part of the cylindrical groove communicates with the inner cavity of the ratchet chamber 5n, and the bottom of the cylindrical groove extends into the other side wall of the ratchet chamber 5n. The rectangular groove is a through groove and communicates with the inner cavity of the ratchet chamber 5n. Figure 16 As shown, the outer surface of the ratchet chamber 5n is provided with four side cover plate positioning holes 5g and one side cover plate positioning groove 5l. The front and rear end faces of the inner cavity of the ratchet chamber 5n are each provided with a ratchet rack connecting hole 5h, the two ratchet rack connecting holes 5h are coaxial, and the bottom surface of the inner cavity of the ratchet chamber 5n is provided with a limiting boss 5i.

[0055] like Figure 14 , Figure 15 and Figure 18 As shown, there are two rotating upper cover plates 6. One end has a base connection hole 6a, which is hinged to the upper cover plate connection hole 5b of the rear base 5 via a cover plate shaft 7. It is installed in the upper cover plate positioning groove 5j of the rear base 5, allowing the rotating upper cover plate 6 to rotate within a certain range around the cover plate shaft 7. The rotating upper cover plate 6 has a tail support limiting groove 6b, which is semi-circular and coaxially engages with the upper semi-circular surface of the outer circle of the automatic grenade launcher tail support 20 for limiting. The other end of the rotating upper cover plate 6 has a ratchet arc 6c, with five positive ratchet teeth 6d on the outer side of the arc.

[0056] like Figure 16 , Figure 19 and Figure 23As shown, there are two ratchet racks 8. The bottom has a base mounting hole 8a, which is hinged to the ratchet rack connection hole 5h of the ratchet chamber 5n via a ratchet rack shaft 9. The ratchet rack 8 is installed in the ratchet chamber 5n, allowing it to rotate within a certain range around the ratchet rack shaft 9. One side of the ratchet rack 8 is flat, and the other side has three reverse ratchet teeth 8b, which mesh with the forward ratchet teeth 6d of the rotating upper cover plate 6, thus achieving one-way self-locking.

[0057] like Figure 14 , Figure 16 and Figure 21 As shown, there are two side cover plates 13, which are installed in the side cover plate positioning groove 5l of the ratchet chamber 5n. The bottom surface of the side cover plate 13 has two limiting holes 13a, which are coaxially aligned with the first limiting hole 5d of the ratchet chamber 5n. The inner side of the side cover plate 13 has four positioning posts 13b and one extension platform 13e. The positioning posts 13b are fitted with the side cover plate positioning holes 5g of the ratchet chamber 5n. The upper surface of the extension platform 13e has a platform boss 13f, and each of the front and rear ends of the extension platform 13e has a support plate connecting hole 13c, which are coaxially arranged. The upper surface of the platform boss 13f has a spring limiting post 13d. The side cover plate pin 14 is fitted with the first limiting hole 5d of the ratchet chamber 5n and the limiting hole 13a of the side cover plate 13 to restrict the movement of the side cover plate 13 and ensure that it does not fall off.

[0058] like Figure 21 , Figure 22 and Figure 23 As shown, there are two support plates 15, each with a side cover plate connection hole 15c. These are hinged to the support plate connection hole 13c of the side cover plate 13 via a support plate shaft 16, allowing the support plate 15 to rotate within a certain range around the support plate shaft 16. The upper end of the inner side of the support plate 15 has a support boss 15a, and the middle of the outer side has a spring limiting block 15b. The support boss 15a contacts and abuts against the non-ratchet surface of the ratchet rack 8. A support leaf spring 17 is installed between the support plate 15 and the platform boss 13f, with its axis forming an arc curve. One end is fitted onto the spring limiting block 15b of the support plate 15, and the other end is fitted onto the spring limiting post 13d on the surface of the platform boss 13f, thus pushing the support plate 15 to rotate.

[0059] like Figure 20 , Figure 23 , Figure 24 , Figure 25 and Figure 26As shown, there are two unlocking devices 10, installed in the groove 5f of the rear base 5, capable of sliding along the groove and rotating around its own axis within a certain range. Each unlocking device 10 has an unlocking tenon 10a and an unlocking body 10c. The unlocking tenon 10a is a flat rectangular block that mates with the inner rectangular groove of the groove 5f of the rear base 5. The unlocking body 10c is cylindrical and coaxially mates with the outer cylindrical groove of the groove 5f of the rear base 5. One end face of the unlocking body 10c has a spring limiting hole 10b, coaxial with the unlocking body 10c. The unlocking spring 11 is installed in the outer cylindrical groove of the groove 5f of the rear base 5, with one end abutting the bottom end face of the cylindrical groove and the other end abutting the bottom of the spring limiting hole 10b of the unlocking device 10, thereby pushing the unlocking device 10 to slide axially along the groove. The locking pin 12 is installed in the second limiting hole 5e of the ratchet chamber 5n. It can abut against the end face of the locking tenon 10a to limit the range of axial movement of the locking device 10, thereby ensuring that the locking device 10 will not fall out of the slide groove 5f when it is pushed by the locking spring 11. The unlocking device 10 is pushed into the bottom of the groove 5f, compressing the unlocking spring 11. When the unlocking tenon 10a moves inward and slides out of the groove 5f, that is, when it disengages from the inner rectangular groove of the groove 5f and enters the inner cavity of the ratchet chamber 5n, the unlocking device 10 can rotate around the axis of the unlocking device body 10c. At this time, the unlocking tenon 10a rotates accordingly, abutting against the top inclined surface of the ratchet rack 8 in the ratchet chamber 5n. The ratchet rack 8 is pushed to rotate around the ratchet rack axis 9. The non-ratchet surface of the ratchet rack 8 pushes the support plate 15 to rotate around the axis, compressing the support spring 17. The ratchet rack 8 separates from the ratchet gear arc 6c, and the self-locking between the two fails. After the unlocking device 10 resets, the support spring 17 extends and pushes the support plate 15, thereby pushing the ratchet rack 8 to reset. When the bottom surface of the ratchet rack 8 abuts against the limiting boss 5i in the ratchet chamber 5n, the ratchet rack 8 reset is completed.

[0060] The working process of this mechanism is as follows: In the initial state, the sliding catch 2 is pushed to the innermost side of the catch groove 1c by the catch spring 3, and the rotating push handle 4 is located at the innermost side of the horizontal groove of the push handle groove 1d. Pushing the rotating push handle 4 causes it to slide along the push handle groove 1d to the outermost side of the vertical groove, and the sliding catch 2 also slides to the outer side of the catch groove. Rotating the rotating push handle 4 clockwise (or counterclockwise) by 90 degrees causes the second limiting protrusion 4b to abut against the T-shaped groove step of the push handle groove 1d. At this time, the gas block 19 of the grenade launcher can be inserted, so that the lower end catch 19a cooperates with the semi-circular limiting groove 1b for limiting. After the limiting position is completed, rotate the push handle 4 ninety degrees again so that its first limiting protrusion 4a is aligned with the height of the limiting groove 1e. Under the action of the locking spring 3, the sliding locking block 2 is pushed back to the innermost side of the locking block groove 1c. At this time, part of the upper and lower bottom surfaces of the sliding locking block 2 are in contact with the front groove 19c of the lower end locking protrusion 19a of the gas block, and the remaining part is in contact with the upper and lower bottom surfaces of the locking block groove 1c. At this point, the mechanism is locked, and the gas block 19 is fixed in the front disassembly and assembly mechanism. Repeating the operation in the initial state will unlock the mechanism, and the gas block 19 of the grenade launcher can be directly removed. The overall assembly effect of the front disassembly and assembly mechanism is as follows. Figure 2 As shown, the locking and unlocking diagrams are respectively as follows: Figure 12 and Figure 11 As shown. In the initial state, the two rotating upper cover plates 6 of the rear disassembly mechanism are opened to the outermost position. The grenade launcher tailstock 20 is placed into the tailstock limiting groove 5a of the rear base 5. The rotating upper cover plate 6 is rotated until its tailstock limiting groove 6b contacts the outer circular surface of the tailstock 20. The ratchet arc 6c passes through the square hole 5m and meshes with the ratchet rack 8 in the ratchet chamber 5n to form a one-way self-locking mechanism. At this time, the mechanism is locked and the grenade launcher tailstock 20 is fixed on the rear disassembly mechanism. The unlocking device 10 is pushed into the bottom of the slide groove 5f. When the unlocking tenon 10a disengages from the rectangular groove of the slide groove 5f and enters the inner cavity of the ratchet chamber 5n, the unlocking device 10 is rotated. The unlocking tenon 10a rotates and abuts against the top inclined surface of the ratchet rack 8 and pushes it to rotate. The ratchet rack 8 then pushes the support plate 15 to rotate, causing the support leaf spring 17 to be compressed. After rotation to the correct position, the forward ratchet 6d of the rotating upper cover plate 6 separates from the reverse ratchet 8b of the ratchet rack 8, unlocking the mechanism. The rotating upper cover plate 6 can then be opened, and the grenade launcher tailstock 20 can be removed. After removal, rotate the unlocking device 10 until the unlocking tenon 10a aligns with the rectangular groove of the slide 5f. Under the action of the unlocking device spring 11, the unlocking device 10 is pushed away from the bottom of the groove until the unlocking tenon 10a is stopped by the unlocking device limiting pin 12. Simultaneously, under the action of the support plate spring 17, the support plate 15 is pushed to rotate, causing the ratchet rack 8 to rotate around its axis until the lower surface of the ratchet rack 8 is stopped by the limiting boss 5i. At this point, the unlocking device 10, ratchet rack 8, and support plate 15 have completed their reset and returned to their initial state. The final assembly effect of the rear disassembly and assembly mechanism is as follows: Figure 13 As shown, the locking and unlocking diagrams are respectively as follows: Figure 23 and Figure 26 As shown. The complete assembly of the entire mechanism is as follows. Figure 1 As shown.

Claims

1. A mechanism for fixing and quickly detaching an automatic grenade launcher for an unmanned aerial vehicle (UAV), characterized in that, include: It is used to connect to the drone mount and is used for the front and rear disassembly and assembly mechanisms of the grenade launcher gas block and grenade launcher tailstock, respectively. The front-end disassembly and assembly mechanism includes: A front base for connecting to a drone mount and engaging with a grenade launcher gas clamp. A sliding catch that can slide within the front base to lock the front base to the gas block of the grenade launcher. A locking spring is installed between the front base and the sliding locking block to push the sliding locking block and lock it against the gas block of the grenade launcher. A rotating push handle that connects to and can push the sliding block to slide, and works with the front base to limit the position of the sliding block after unlocking; The rear-end disassembly and assembly mechanism includes: A rear base for connecting to a drone mount and equipped with a ratchet chamber to accommodate the forward ratchet at one end of the rotating top cover. The other end is hinged to the rear base to secure the grenade launcher tailstock to the rear base via a rotating top cover. A ratchet rack is installed in the ratchet chamber and equipped with reverse ratchet teeth to engage with the rotating upper cover plate to achieve locking. A support mechanism that provides elastic thrust to the ratchet rack to engage it with a rotating top cover plate. A lock pick used to rotate the ratchet rack to separate it from the rotating top cover; The front base is provided with a locking slot, a push handle slot, and a limiting slot; the push handle slot is a horizontal T-shaped slot, with a vertical slot on the outer side and a horizontal slot on the inner side; the limiting slot is located at the top of the horizontal slot of the push handle slot and has the same length as the horizontal slot of the push handle slot; the locking slot is an L-shaped slot that communicates with the push handle slot and has a longer length than the push handle slot; the sliding locking block is set in the locking slot. The cylindrical body of the rotating push handle is rotatably connected to the sliding catch; the outer circular surface of the cylindrical body is provided with a first limiting tenon and a second limiting tenon, the second limiting tenons being arranged symmetrically in pairs about the cylindrical body; when the cylindrical body slides in the transverse groove of the push handle groove, the first limiting tenon is in the limiting groove, and the rotation of the second limiting tenon is restricted by the push handle groove; when the cylindrical body slides in the vertical groove of the push handle groove, the first limiting tenon disengages from the limiting groove, and the second limiting tenon is released from restriction.

2. The automatic grenade launcher fixing and quick-release mechanism for unmanned aerial vehicles according to claim 1, characterized in that, The front base is provided with a semi-circular limiting groove, and the bottom of the groove is provided with a protruding tenon, which is used to cooperate with the bottom groove at the lower end of the air guide for limiting.

3. The automatic grenade launcher fixing and quick-release mechanism for unmanned aerial vehicles according to claim 1, characterized in that, The support mechanism includes a side cover plate, a support plate, and a support leaf spring; the side cover plate is fixed to the end of the ratchet chamber; the support plate is hinged to the side cover plate, and a support leaf spring is provided between the support plate and the side cover plate; a support boss is provided at the upper end of the inner side of the support plate, and the support leaf spring is used to push the support plate to rotate so that the support boss contacts and abuts against the non-ratchet surface of the ratchet rack.

4. The automatic grenade launcher fixing and quick-release mechanism for unmanned aerial vehicles according to claim 3, characterized in that, The inner side of the side cover plate is provided with an extension platform, the upper surface of the extension platform plate is provided with a platform boss, and the upper surface of the platform boss is provided with a spring limiting post; the support plate is hinged to the extension platform plate, and the middle of the outer side is provided with a spring limiting block; the support plate spring is provided on the spring limiting post and the spring limiting block.

5. The automatic grenade launcher fixing and quick-release mechanism for unmanned aerial vehicles according to claim 1, characterized in that, The end face of the ratchet chamber is provided with a sliding groove, which includes two parts: a cylindrical groove on the outer side and a rectangular groove on the inner side. The bottom of the cylindrical groove extends into the cavity wall on the other side of the ratchet chamber, and the rectangular groove is a through groove and communicates with the inner cavity of the ratchet chamber. The unlocking device is provided with an unlocking tenon and an unlocking device body. The unlocking tenon is engaged with the inner rectangular groove of the sliding groove of the rear base. The unlocking device body is coaxially engaged with the outer cylindrical groove of the sliding groove of the rear base. An unlocking device spring is provided between the unlocking device body and the ratchet chamber. An unlocking device limiting pin is provided on the ratchet chamber to abut against the end face of the unlocking tenon.

6. The automatic grenade launcher fixing and quick-release mechanism for unmanned aerial vehicles according to claim 1, characterized in that, The lower bottom surface of the ratchet chamber is provided with a limiting boss to limit the meshing position of the ratchet rack.

7. The automatic grenade launcher fixing and quick-release mechanism for unmanned aerial vehicles according to claim 3, characterized in that, The outer surface of the ratchet chamber is provided with side cover plate positioning holes and side cover plate positioning grooves; the front and rear end faces of the ratchet chamber are each provided with a ratchet rack connection hole; the side cover plate is installed in the side cover plate positioning groove of the ratchet chamber; the inner surface of the side cover plate is provided with four positioning posts and one extension platform, and the positioning posts are installed in conjunction with the side cover plate positioning holes of the ratchet chamber.

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