120mm double-tube rapid automatic mortar

Abstract

The invention relates to the field of firearms, in particular to a 120 mm double-tube rapid automatic mortar which comprises a rack and a launching device installed on the rack and used for launching cannonballs, the launching device comprises a gun barrel and a breechblock, the breechblock is arranged in the gun barrel in a sliding mode and used for containing the cannonballs, and a filling hole is formed in the side wall of the gun barrel and used for containing the cannonballs. A bullet filling device is arranged at the position, corresponding to the bullet filling hole, of the gun barrel, the bullet filling device comprises a supporting shell and a push plate, the push plate is installed on the inner side wall of the supporting shell and can move along an annular path, the motion path of the push plate passes through the bullet filling hole, and a bullet box is arranged on the side, away from the gun barrel, of the motion path of the push plate; the cannonball box is used for storing ammunition. The method has the effect of improving the combat flexibility of the troops.

Description

Technical Field

[0001] The present application relates to the technical field of firearms, and in particular to a 120mm double-barreled rapid automatic mortar. Background Art

[0002] The mortar is a common type of artillery with a short barrel, a large firing angle, a high ballistic arc, a base plate that bears the recoil, and is mainly used for indirect firing.

[0003] The shells are usually loaded manually, for example, a portable mortar with publication number CN106017210B mainly includes a barrel, a base plate and a gun carriage, the gun carriage is connected to the barrel to support the barrel, the base plate is placed at the bottom of the barrel and sits on the ground to withstand the impact force during the shell firing process. A firing pin is provided at the bottom of the barrel, and when the barrel slides from the barrel opening to the inside of the barrel, the bottom of the shell contacts the firing pin and explodes, and the shell is pushed out by air pressure to achieve the firing of the shell.

[0004] Since the mortars in related technologies are loaded manually, they cannot provide continuous fire suppression, have slow response times, and have poor flexibility in use during war. Summary of the invention

[0005] In order to improve the flexibility of the mortar during use, the present application provides a 120mm double-barreled rapid automatic mortar.

[0006] The 120mm double-barreled rapid automatic mortar provided in this application adopts the following technical solution:

[0007] A 120mm double-barreled rapid automatic mortar comprises a frame and a launching device mounted on the frame for launching shells, the launching device comprising a barrel and a breech block, the breech block is slidably arranged in the barrel for mounting shells, a shell filling hole is provided on the side wall of the barrel, a shell filling device is arranged at a position corresponding to the shell filling hole on the barrel, the shell filling device comprises a support shell and a push plate, the push plate is mounted on the inner side wall of the support shell and can move along a circular path, the movement path of the push plate passes through the shell filling hole, a shell box is arranged on the side of the movement path of the push plate away from the barrel, and the shell box is used to store ammunition.

[0008] By adopting the above technical solution, the push plate moves along the circular path, and passes through the bullet filling hole and the shell box in sequence and for multiple times. When passing through the shell box, the shell in the shell box is pushed to move until the shell is pushed into the barrel from the bullet filling hole. Then, the ammunition at the tail of the shell can be hit by the movement of the breech block to trigger the detonator to realize the firing of the shell. In actual use, the push plate moves in a circular motion, and the breech block cooperates with the reciprocating motion to realize the continuous firing of the shell, thereby improving the firepower of the mortar and the flexibility of the mortar during use.

[0009] Optionally, the loading device also includes a ring push assembly, which includes a rotating wheel and a flexible ring. The rotating wheel is arranged in two in a direction perpendicular to the barrel, the flexible ring is sleeved outside the rotating wheel, and the push plate is installed on the flexible ring. The rotation of the rotating wheel can drive the flexible ring to rotate.

[0010] By adopting the above technical solution, the flexible ring is sleeved on the rotating wheel, and the flexible ring is driven to move by rotating the rotating wheel, thereby driving the flexible ring to move, thereby realizing the circular movement of the push plate.

[0011] Optionally, a linkage assembly is arranged between the barrel and the rotating wheel, the linkage assembly includes a toggle rod, defining one end of the barrel that launches the shell as the launching end, the toggle rod is located on the side of the breech block away from the launching end, the toggle rod is rotatably connected to the barrel, and one end extends into the interior of the barrel, and the breech block can drive the toggle rod to rotate when it approaches the toggle rod, a first rotating shaft and a second rotating shaft are arranged between the toggle rod and the rotating wheel, the first rotating shaft and the second rotating shaft are respectively connected to the toggle rod and the rotating wheel, and the rotation of the toggle rod can drive the rotating wheel to rotate.

[0012] By adopting the above technical solution, during the use of the mortar, the shell enters the barrel, and then the breech block approaches the firing end to hit the shell, and the shell is fired. After the firing is completed, the breech block moves away from the firing end, and then the breech block contacts the toggle rod to drive the toggle rod to rotate, thereby driving the push plate to push the shell into the barrel again, and then the breech block moves to fire the shell again, achieving continuous firing.

[0013] Optionally, the shell box includes a box body and a partition, the box body is hollow inside and an opening is arranged on one side close to the support shell, and the partition is arranged in the box body and a plurality of partitions are arranged at intervals along a direction perpendicular to the box body opening and the barrel.

[0014] By adopting the above technical solution, the box is divided by a plurality of partitions, so that the shells can be arranged in an orderly manner in the box.

[0015] Optionally, the partition divides the box body into a plurality of shell cavities, and a pushing assembly is provided in the shell cavity, the pushing assembly includes a shell discharge plate and a third elastic member, the shell discharge plate is slidably connected in the shell cavity along a direction parallel to the opening of the shell cavity, and the third elastic member is used to make the shell discharge plate maintain a tendency to move to the outside of the shell cavity, and a blocking assembly is provided at the opening of the box body, the blocking assembly includes a plurality of baffles arranged corresponding to the shell cavities, and the baffles can slide along the arrangement direction of the partition.

[0016] By adopting the above technical solution, when the shell box is idle, the shells are arranged in the shell cavity in a direction parallel to the opening of the shell cavity. The ejector plate abuts against the shells and exerts a force on the shells to make the shells move to the outside of the shell cavity, while the baffle blocks the shells from moving to the outside, thus achieving a balanced state. When the shell box is in use, the baffle corresponding to the first shell cavity is first moved, and the first shell cavity is opened. After the shells in the first shell cavity are consumed, the baffle corresponding to the second shell cavity is slid, so that the second shell cavity is opened. This is repeated in this way, so that multiple shell cavities are opened in sequence, which facilitates the orderly discharge of shells.

[0017] Optionally, a limit block is provided on the side of the baffle plate close to the box body, and a limit groove is provided on the box body corresponding to the limit block, the limit block is inserted in the limit groove, and the baffle plate can move in the direction away from the box body. When the baffle plate moves in the direction away from the box body, the limit block can be disengaged from the limit groove, and a hook is rotatably provided on the box body, and the hook is hooked on the baffle plate to prevent the baffle plate from moving in the direction away from the box body. Rotating the hook can disengage the hook from the baffle plate.

[0018] By adopting the above technical solution, the limit block is inserted into the limit groove, and the limit block limits the displacement of the baffle in the direction perpendicular to the upward direction of the shell cavity opening. At the same time, the hook member is hooked on the baffle to prevent the baffle from moving away from the box body, so that the limit block can stably limit the baffle. When the shell cavity needs to be opened, the hook member is rotated to unhook the baffle, and at this time, the baffle is pushed away from the box body under the action of the third elastic member, and at this time, the baffle can slide in the direction perpendicular to the direction of the shell cavity opening to open the shell cavity.

[0019] Optionally, a fourth elastic member is provided on the box body corresponding to the baffle plate, and the fourth elastic member enables the baffle plate to maintain a tendency to move in a direction perpendicular to the direction of the opening of the shell chamber. A driving part is provided on the hook member, and a driving inclined surface is provided on the driving part. During the sliding process of the ejection plate, it can abut against the driving inclined surface and drive the hook member in the adjacent shell chamber to rotate.

[0020] By adopting the above technical solution, multiple shell chambers are defined as the first shell chamber, the second shell chamber, etc., and the baffle of the first shell chamber is opened, and the ejector plate in the first shell chamber pushes the shells to move in sequence and eject them. When the ejector plate moves to a position close to the opening of the shell chamber, it abuts against the hook member to drive the hook member in the adjacent shell chamber to move and separate from the baffle. At this time, the corresponding fourth elastic member in the adjacent shell chamber can automatically push the baffle to move, so that the adjacent shell chamber is opened.

[0021] Optionally, a support plate is provided under the shell box, and the support plate is fixedly connected to the barrel.

[0022] By adopting the above technical solution, the support plate is arranged under the shell box to support the shell box, thereby improving the stability of the shell box during use.

[0023] Optionally, two limiting rods are provided on the support plate, and the limiting rods are arranged on both sides of the shell box along the axis of the rotating wheel.

[0024] By adopting the above technical solution, the shell box is limited by the limiting rod, thereby improving the stability of the shell box during use. At the same time, during the installation of the shell box, the shell box can be placed between the two limiting rods and then pushed close to the barrel, which is convenient for the installation of the shell box.

[0025] Optionally, an exhaust hood is provided at the launching end of the barrel. The exhaust hood is hollow inside and has an opening on one side. The hood is provided at the launching end of the barrel. An exhaust cavity is formed between the exhaust hood and the side wall of the barrel. The side wall of the barrel is provided with exhaust holes connected to the interior of the barrel.

[0026] By adopting the above technical solution, during the process of shell firing, the shell propulsion generates compression of the gas in the barrel, which is convenient for the gas to be discharged through the exhaust hole, thereby reducing the recoil force during the shell firing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0028] Figure 2 It is a schematic diagram of the structure of the transmitting device of an embodiment of the present application.

[0029] Figure 3 It is a schematic diagram of the structure of the front gun barrel of an embodiment of the present application.

[0030] Figure 4 It is a schematic diagram of the structure of the rear gun barrel of an embodiment of the present application.

[0031] Figure 5 It is a schematic diagram of the breech block structure of an embodiment of the present application.

[0032] Figure 6 It is a structural diagram of the linkage component of an embodiment of the present application.

[0033] Figure 7 This is an embodiment of the present application Figure 6 Enlarged view of part A.

[0034] Figure 8 It is a structural schematic diagram of the circulating driving mechanism of an embodiment of the present application.

[0035] Fig. 9 It is a schematic diagram of the structure of the flexible ring of an embodiment of the present application.

[0036] Fig.10It is a schematic diagram of the structure of the shell box of the embodiment of the present application.

[0037] Fig.11 This is an embodiment of the present application Fig.10 Magnified view of part B.

[0038] Fig.12 It is a schematic diagram of the internal structure of the shell box of an embodiment of the present application.

[0039] Fig.13 It is a schematic diagram of the structure of the blocking component of an embodiment of the present application.

[0040] Fig.14 It is a schematic diagram of the structure of the hook member of an embodiment of the present application.

[0041] Reference numerals: 1, frame; 11, base; 12, adjustment plate; 13, adjustment shaft; 2, launching device; 21, barrel; 211, front barrel; 212, rear barrel; 22, bullet filling hole; 23, breech block; 231, sliding column; 232, pushing member; 233, first elastic member; 234, sliding groove; 235, firing pin; 236, sliding plate; 24, exhaust cover; 25, first exhaust chamber; 26, second exhaust chamber; 27, exhaust hole; 28, driving assembly; 281, driving assembly moving gear; 282, driving member; 3, loading device; 31, circulating pushing mechanism; 311, supporting shell; 312, pushing plate; 313, ring pushing assembly; 3131, pulling groove; 3133, rotating wheel; 3134, flexible ring; 3135, mounting member; 3136, guiding groove; 32, shell box; 321, box body; 322, partition; 323, shell cavity; 324, pushing assembly; 3241, ejector plate; 3242, third elastic member; 4, retraction assembly; 41, insert ; 42, receiving groove; 43, driving plate; 44, inclined surface; 45, flat surface; 46, second elastic member; 47, blocking plate; 48, jack; 49, locking groove; 5, linkage assembly; 51, toggle rod; 52, first rotating shaft; 53, second rotating shaft; 54, fifth elastic member; 55, active bevel gear; 56, driven bevel gear; 6, one-way rotation assembly; 61, ratchet; 62, pawl; 63, spring; 7, support plate; 71, limiting rod; 72, matching rod; 73, matching The locking rod comprises a locking slot; 74, a locking rod; 75, a slot; 76, a sixth elastic member; 8, a blocking assembly; 81, a baffle; 82, a slide rail; 83, a fourth elastic member; 84, a lever; 85, a lever slot; 86, a hook member; 861, a rotating rod; 862, a hook member; 863, a hanging plate; 864, a hanging hole; 865, a driving member; 87, a driving inclined plane; 91, an initial moving member; 92, an initial excitation member; 93, a linkage rod; 10, a stabilizing assembly; 101, an upper tray; 102, a lower tray. DETAILED DESCRIPTION

[0042] The following is combined with Figure 1-14 This application is described in further detail.

[0043] The embodiment of the present application discloses a 120mm double-barreled rapid automatic mortar.

[0044] Reference Figure 1 and Figure 2 The 120mm double-barreled rapid automatic mortar includes a frame 1, a launcher 2 and a loading device 3. The launcher 2 is used to excite shells, and the loading device 3 is used to automatically load shells. The launcher 2 includes a barrel 21 and a breech block 23. The barrel 21 is hollow inside and is used to hold shells. The breech block 23 is slidably connected inside the barrel 21 and is used to hit the shells in the barrel 21. A loading hole 22 is provided on the side wall of the barrel 21, and the loading device 3 is installed at the loading hole 22 and is used to drive the shells to move into the loading hole 22. The end where the shells are fired from the barrel 21 is defined as the firing end. The fixed end is connected to the frame 1, and the loading hole 22 is located on the side of the breech block 23 close to the firing port. During use, the loading device 3 automatically pushes the shells into the barrel 21, and then the breech block 23 moves to push the shells to move toward the firing end. During the movement of the breech block 23, it hits the detonator at the tail of the shell for exciting the explosion, thereby realizing the firing of the shells.

[0045] Reference Figure 1 In order to improve the firepower of the battle, multiple launchers 2 and loading devices 3 can be arranged on the frame 1, and two are arranged in this embodiment. The frame 1 includes a base 11, an adjustment disk 12 and an adjustment shaft 13. The adjustment disk 12 is rotatably connected to the base 11, and the rotation axis of the adjustment disk 12 is perpendicular to the ground. A support seat is welded on the adjustment disk 12, and the adjustment shaft 13 is penetrated on the support seat and rotatably connected to the support seat, and the rotation axis of the adjustment shaft 13 is parallel to the ground. Two groups of launchers 2 are respectively arranged at both ends of the adjustment shaft 13. The rotation of the adjustment shaft 13 and the rotation of the adjustment disk 12 are driven by a servo motor to facilitate the adjustment of the firing direction of the shells. A radar or monitoring camera can also be arranged on the support seat to further facilitate the detection of the enemy situation.

[0046] Reference Figure 2 and Figure 3The barrel 21 includes a front barrel 211 and a rear barrel 212. Both the front barrel 211 and the rear barrel 212 are circular cylindrical structures. Among them, the diameter of the front barrel 211 is smaller than the diameter of the rear barrel 212. A connecting tube is arranged between the front barrel 211 and the rear barrel 212, and the connecting tube is a truncated cone structure as a whole, and its interior is hollow and has two openings. One end of the connecting tube is connected to the front barrel 211, and the other end is connected to the rear barrel 212, so as to realize the connection between the front barrel 211 and the rear barrel 212. The firing end is the end of the front barrel 211 away from the rear barrel 212, and the loading port is provided on the side wall of the rear barrel 212. The breech block 23 is slidably matched in the rear barrel 212 along the length direction of the rear barrel 212, so as to realize the sliding connection between the breech block 23 and the rear barrel 212. Two exhaust hoods 24 are arranged on the front barrel 211, and the exhaust hood 24 is a circular barrel structure with one end open. The two exhaust hoods 24 are defined as a first exhaust hood 24 and a second exhaust hood 24. The diameter of the first exhaust hood 24 is larger than that of the second exhaust hood 24. A mounting hole is provided on the bottom wall of the first exhaust hood 24 corresponding to the front barrel 211. The first exhaust hood 24 is sleeved on one end of the front barrel 211 away from the rear barrel 212. The second exhaust hood 24 is also sleeved on the front barrel 211 and is located inside the first exhaust hood 24. A first exhaust cavity 25 is formed between the first exhaust hood 24 and the second exhaust hood 24. An exhaust hole 27 communicating with the interior of the front barrel 211 is provided at a position corresponding to the first exhaust cavity 25. A second exhaust cavity 26 is formed between the second exhaust hood 24 and the side wall of the front barrel 211. An exhaust hole 27 communicating with the interior of the barrel is also provided at a position of the front barrel 211 corresponding to the second exhaust cavity 26.

[0047] Reference Figure 4 and Figure 5 The breech block 23 includes a sliding column 231 and a pushing member 232. The sliding column 231 is a cylindrical structure, and the sliding column 231 is slidably fitted in the rear barrel 212. A sliding groove 234 is provided on the end surface of the sliding column 231 away from the front barrel 211, and the pushing member 232 is slidably fitted in the sliding groove 234 along the length direction of the rear barrel 212. The breech block 23 also includes a first elastic member 233, which is arranged on a side of the pushing member 232 close to the front barrel 211, and is used to keep the pushing member 232 and the sliding column 231 moving in a direction away from each other. In this embodiment, the elastic member is a spring, and the two ends of the spring are respectively in contact with the pushing member 232 and the side wall of the sliding groove 234.

[0048] Reference Figure 4 and Figure 5The breech block 23 also includes a firing pin 235, which is arranged on a side of the pusher 232 close to the front barrel 211, and the firing pin 235 is arranged parallel to the rear barrel 212. A through hole is provided on the sliding column 231 at a position corresponding to the firing pin 235, and the firing pin 235 is inserted into the through hole. A driving assembly 28 for driving the pushing member 232 to move is provided on the pushing member 232. During the use of the mortar. The driving assembly 28 drives the pushing member 232 to move, and under the action of the first elastic member 233, the sliding column 231 slides synchronously with the pushing member 232. At the same time, the sliding column 231 drives the shell located at the bullet filling hole 22 to move, so that it enters the front barrel 211. After the sliding column 231 abuts against the connecting tube, as the pushing member 232 continues to move, the sliding column 231 overcomes the elastic force of the first elastic member 233 and moves relative to the pushing member 232. At this time, the firing pin 235 continues to move and hits the ignition device on the shell to realize the firing of the shell. Then the driving assembly 28 drives the breech block 23 to retract, the loading device 3 reloads, and the breech block 23 moves again to achieve continuous firing.

[0049] Reference Figure 4 and Figure 5 The breech block 23 also includes a sliding plate 236, which is radially arranged along the sliding column 231 and fixed on the pushing member 232. A matching groove 73 is correspondingly provided on the rear barrel 212. The sliding plate 236 passes through the sliding column 231 on the side away from the pushing member 232 and slides in the matching groove 73 to guide the sliding of the sliding column 231 and improve the stability of the sliding column 231 during the sliding process. In order to further improve the stability of the sliding column 231 during the sliding process, multiple groups of sliding plates 236 can be arranged along the circumference of the sliding column 231. In this embodiment, the sliding plates 236 are arranged in two groups, and the angle between the two groups of sliding plates 236 is 90 degrees. Each group of sliding plates 236 includes two sliding plates 236 spaced apart along the length direction of the sliding column 231.

[0050] Reference Figure 4 and Figure 5 The driving assembly 28 includes a driving gear 281 and a driving member 282. The driving gear 281 is arranged corresponding to one group of sliding plates 236. The driving gear 281 is arranged between two adjacent sliding plates 236 in the same group of sliding plates 236. The driving gear 281 is rotatably connected to the pushing member 232. A tooth groove meshing with the driving gear 281 is provided on the side wall of the matching groove 73. The driving gear 281 is rotated to drive the pushing member 232. The driving member 282 is used to drive the driving gear 281 to rotate. In this embodiment, the driving member 282 is a servo motor. The housing of the servo motor is fixed inside the pushing member 232. The gear meshing with the driving gear 281 is coaxially fixed on the output shaft of the servo motor. The rotation of the output shaft of the servo motor can drive the driving gear 281 to rotate, thereby driving the driving gear 281.

[0051] Reference Figure 4 and Figure 5 The sliding column 231 is also provided with a recoil control assembly 4, which includes an insert 41. A receiving groove 42 is provided on the side wall of the sliding column 231. The insert 41 slides and fits in the receiving groove 42 along the radial direction of the sliding column 231. A locking groove 49 is provided on the side wall of the rear barrel 212 near the front barrel 211. When the sliding column 231 abuts against the connecting tube, the insert 41 can correspond to the locking groove 49. At this time, the sliding insert 41 can make the insert 41 inserted into the locking groove 49 to limit the sliding of the sliding column 231. The stability of the breech block 23 during the firing of the shell is improved.

[0052] Reference Figure 4 and Figure 5 The recoil control assembly 4 also includes a driving plate 43, which is located between the firing pin 235 and the pusher 232. The driving plate 43 is a plate-like structure arranged along the radial direction of the sliding column 231. An inclined surface 44 is arranged on the side wall of the driving plate 43 close to the insert 41, and the inclined surface 44 is inclined along the sliding direction of the sliding column 231 from the side close to the front barrel 211 to the side away from the front barrel 211 in the direction away from the axis of the sliding column 231. An arc-shaped surface is arranged at one end of the insert 41 close to the axis of the sliding column 231, and the axis of the arc-shaped surface is perpendicular to the sliding direction of the pusher 232. The arc-shaped surface is tangent to the inclined surface 44 and abuts. When the pusher 232 drives the sliding column 231 to move, after the sliding column 231 abuts against the connecting tube, the pusher 232 continues to move to drive the insert 41 to move in the direction away from the axis of the sliding column 231, so that it is inserted into the locking groove 49 to achieve the locking of the sliding column 231.

[0053] Reference Figure 4 and Figure 5 The driving plate 43 is further provided with two flat surfaces 45 , which are parallel to the axis of the sliding column 231 . The two flat surfaces 45 are respectively provided on both sides of the inclined surface 44 along the sliding direction of the pushing member 232 and are connected to the inclined surface 44 .

[0054] Reference Figure 4 and Figure 5 In order to further improve the stability of the sliding column 231 during the projectile launching process, a plurality of inserts 41 can be evenly spaced around the axis of the sliding column 231 , and four are provided in this embodiment. A plurality of drive plates 43 are provided corresponding to the inserts 41 .

[0055] Reference Figure 4 and Figure 5The retraction assembly 4 also includes a second elastic member 46, which is mounted on the sliding column 231 and is used to drive the plug core 41 to move toward the driving plate 43. In this embodiment, the driving member 282 is a spring, which is sleeved outside the plug core 41, and one end of the spring is connected to the sliding column 231 and the other end is connected to the plug core 41. Under the action of the second elastic member 46, when the pusher 232 is retracted, the plug core 41 can automatically reset and cancel the limit on the sliding column 231, so that the pusher 232 can drive the sliding column 231 to retract.

[0056] Reference Figure 4 and Figure 5 The recoil control assembly 4 also includes a blocking plate 47, which is arranged perpendicular to the plug core 41 and is slidably connected to the sliding column 231 in a direction parallel to the sliding direction of the sliding column 231. The blocking plate 47 is used to block the opening of the receiving groove 42 to prevent the plug core 41 from moving outside the receiving groove 42. The side of the blocking plate 47 close to the front barrel 211 extends to the outside of the sliding column 231. When the sliding column 231 approaches the front barrel 211, the blocking plate 47 first abuts against the connecting tube. A plug hole 48 is provided at the position of the blocking plate 47 close to the front barrel 211. After the blocking plate 47 abuts against the connecting tube, as the sliding column 231 continues to move, the blocking plate 47 moves relative to the plug core 41, driving the blocking plate 47 to move so that the plug hole 48 corresponds to the plug core 41. At this time, the sliding column 231 contacts the connecting tube, and the plug core 41 can pass through the plug hole 48 and be inserted into the locking groove 49 to limit the sliding column 231.

[0057] Reference Figure 1 and Figure 2 The ammunition loading device 3 includes a circulating pushing mechanism 31 and an ammunition box 32. The ammunition box 32 is arranged on one side of the barrel 21, and the circulating pushing mechanism 31 is arranged between the ammunition box 32 and the barrel 21. Figure 6 and Figure 7 A linkage assembly 5 for linking the breech block and the circulating pushing mechanism 31 is provided between the rear barrel 212 and the ring pushing assembly 313. The shell box 32 is used to store shells, and the circulating pushing mechanism 31 is used to drive the shells in the shell box 32 to enter the shell filling hole 22 in sequence.

[0058] Reference Figure 8 and Fig. 9The circular pushing mechanism 31 includes a support shell 311, a push plate 312 and a ring push assembly 313, and the support shell 311 is fixed on the barrel 21. The support shell 311 is hollow inside, and the push plate 312 and the ring push assembly 313 are both arranged inside the support shell 311. On the one hand, it provides space for the installation of the push plate 312 and the drive assembly 28, and on the other hand, it can protect the push plate 312 and the drive assembly 28. The push plate 312 is an arc-shaped plate-like structure, and its diameter is the same as that of the rear barrel 212. When it moves to the position of the bullet filling hole 22, the outer side wall and the inner side wall can be flush with the inner side wall and the outer side wall of the rear barrel 212. The push plate 312 is slidably connected to the inner side wall of the support shell 311 along an annular path. The ring push assembly 313 is used to drive the push plate 312 to move.

[0059] Reference Figure 8 and Fig. 9 During the movement of the push plate 312, it passes through the shell box 32 and the bullet filling hole 22 in sequence. When the push plate 312 passes through the shell box 32, it pushes the shells in the shell box 32 to move along a circular path, and pushes the shells into the barrel 21 when the push plate 312 passes through the bullet filling hole 22. Then, the breech block 23 moves to drive the shells into the front barrel 211 for firing. The push plate 312 moves in a circular motion, and the breech block 23 cooperates with the push plate 312 to reciprocate to achieve continuous firing of the mortar.

[0060] Reference Figure 8 and Fig. 9 The ring push assembly 313 includes a rotating wheel 3133 and a flexible ring 3134, and the rotating wheels 3133 are arranged at intervals of two in a direction perpendicular to the barrel 21. The flexible ring 3134 is formed by a plurality of mounting members 3135 and a toggle member rotating and connecting each other to form a strip-shaped flexible mechanism, which is connected end to end and wound around two rotating wheels 3133 to form an annular structure. The mounting members 3135 and the toggle member are arranged alternately, that is, the toggle member is arranged corresponding to the gap between two adjacent mounting members 3135. The mounting member 3135 is a circular plate-shaped structure with the same diameter as the rotating wheel 3133, and a toggle groove 3131 is arranged on the toggle member. The rotating wheel 3133 is provided with a toggle tooth. When the rotating wheel 3133 rotates, the toggle tooth can be sequentially inserted into the toggle grooves 3131 on different mounting members 3135, thereby driving the flexible ring 3134 to move along the annular path, and the push plate 312 is fixed on the mounting member 3135 to realize the driving of the push plate 312.

[0061] Reference Figure 8 and Fig. 9A guide groove 3136 is provided on the support shell 311 at a position corresponding to the trajectory line of the flexible ring 3134. The flexible ring 3134 is provided in the guide groove 3136. The side wall of the guide groove 3136 can abut against the inner side wall and the outer side wall of the flexible ring 3134, thereby limiting the position of the flexible ring 3134 and improving the stability of the push plate 312 driven by the flexible ring 3134 during movement. Multiple push plates 312 are evenly spaced along the length direction of the flexible ring 3134 to improve the efficiency of mortar shell replacement. At the same time, the distance between adjacent push plates 312 is not less than the diameter of the shell to reduce the occurrence of the shell being unable to move to the push plate 312.

[0062] Reference Figure 6 and Figure 7 The linkage assembly 5 includes a toggle rod 51, which is rotatably connected to a position of the rear barrel 212 away from the front barrel 211. One end of the toggle rod 51 is rotatably connected to the outer wall of the rear barrel 212, and the other end extends to the inside of the rear barrel 212 and is bent toward the front barrel 211. When the breech block 23 moves in a direction away from the front barrel 211, it can abut against the end of the toggle rod 51 away from its own axis and drive the toggle rod 51 to rotate.

[0063] Reference Figure 6 and Figure 7 The linkage assembly 5 further includes a first rotating shaft 52, which is rotatably connected to the outer side wall of the rear barrel 212, and the toggle lever 51 is fixed on the first rotating shaft 52 to realize the rotational connection between the toggle lever 51 and the rear barrel 212. Two active bevel gears 55 are arranged on the first rotating shaft 52 at intervals, one of which is rotatably connected to the rotating shaft, and the other is fixed on the first rotating shaft 52.

[0064] Reference Figure 6 and Figure 7 The linkage assembly 5 further includes a second rotating shaft 53, which is arranged parallel to the rotating axis of the rotating wheel 3133 and spaced apart from each other. The second rotating shaft 53 is rotatably connected to the rear barrel 212, and drives the rotating wheel 3133 through two mutually meshing spur gears. The second rotating shaft 53 is located between the rotating wheel 3133 and the first rotating shaft 52. A driven bevel gear 56 is coaxially fixed to one end of the second rotating shaft 53 close to the first rotating shaft 52. The driven bevel gear 56 is arranged between the two active bevel gears 55 and meshes with the two active bevel gears 55 at the same time. The rotation of the toggle lever 51 drives the first rotating shaft 52 to rotate, thereby driving the second rotating shaft 53 to rotate, and finally driving the rotating wheel 3133 to rotate.

[0065] Reference Figure 6 and Figure 7A one-way rotating assembly 6 is provided between the toggle lever 51 and the first rotating shaft 52, and the one-way rotating assembly 6 includes a ratchet 61, a pawl 62 and a spring 63. The ratchet 61 is coaxially fixed on the first rotating shaft 52, and a sleeve hole is provided on the toggle lever 51 at a position corresponding to the first rotating lever 861, and the toggle lever 51 is rotatably sleeved on the first rotating shaft 52. The pawl 62 is rotatably connected to the toggle lever 51, and one end is engaged in the ratchet 61. The spring 63 is fixed on the toggle lever 51, and exerts a force on the pawl 62 to make the pawl 62 move in a direction close to the ratchet 61. Under the action of the ratchet 61 and the pawl 62, the teeth move in a direction away from the front barrel 211, and can drive the first rotating shaft 52 to rotate. When the toggle lever 51 is rotated and reset in a direction close to the front barrel 211, the pawl 62 is disengaged from the ratchet 61, so as not to drive the first rotating shaft 52 to rotate. The first rotating shaft 52 is also provided with a fifth elastic member 54 for keeping the toggle rod 51 rotating in a direction close to the front barrel 211. In this embodiment, the fifth elastic member 54 is a torsion spring, which is sleeved on the first rotating shaft 52, and one end of the torsion spring is connected to the toggle rod 51, and the other end is fixedly connected to the first rotating shaft 52. Under the action of the fifth elastic member 54, after the toggle rod 51 drives the first rotating shaft 52 to rotate, the breech block 23 moves forward, and the fifth elastic member 54 can drive the toggle rod 51 to automatically reset, so as to drive the first rotating shaft 52 to rotate again.

[0066] In other embodiments, a one-way rotating assembly 6 may also be provided on the second rotating shaft 53 to keep the rotating wheel 3133 rotating in one direction. Specifically, the ratchet 61 is coaxially fixed on the second rotating shaft 53, and the ratchet 62 is rotatably connected to the rear barrel 212.

[0067] Reference Fig.10 and Fig.11 A support plate 7 is provided below the shell box 32, and the support plate 7 is fixed on the rear barrel 212 to support the shell box 32, thereby supporting the shell box 32. Two limiting rods 71 ​​are provided on the support plate 7, and the two limiting rods 71 ​​are respectively provided on both sides of the shell box 32 to limit the shell box 32 and improve the stability of the shell box 32 during use. During the installation of the shell box 32, the shell box 32 is placed between the two limiting rods 71, and then the shell box 32 is pushed along the length direction of the limiting rods 71 ​​to make it close to the ring push assembly 313, so as to realize the installation of the shell box 32.

[0068] Reference Fig.10 and Fig.11A matching rod 72 is provided on the shell box 32 at a position corresponding to the limiting rod 71, and a matching groove 73 is provided on the limiting rod 71 corresponding to the matching rod 72, and the length direction of the matching groove 73 is parallel to the opening direction of the shell box 32. In addition, an opening is provided on the side of the matching groove 73 away from the ring push assembly 313, and the matching rod 72 can slide out of the matching groove 73. To realize the disassembly of the shell box 32, a locking rod 74 is provided on the side wall of the matching groove 73 along a direction perpendicular to the sliding direction of the matching rod 72, and a slot 75 is provided on the matching rod 72 corresponding to the locking rod 74. The sliding matching rod 72 can make the locking rod 74 inserted into the slot 75, limit the sliding of the matching rod 72, and improve the stability of the shell box 32 during use.

[0069] Reference Fig.10 and Fig.11 A sixth elastic member 76 is provided at a position corresponding to the locking rod 74 on the limiting rod 71, and the sixth elastic member 76 is used to keep the matching rod 72 moving toward the direction close to the slot 75, thereby improving the stability of the locking rod 74 limiting the matching rod 72. A guiding slope is provided on the side of the locking rod 74 away from the ring push assembly 313, and the guiding slope is inclined in the direction away from the matching rod 72 from the side close to the ring push assembly 313 to the side away from the ring push assembly 313 along the sliding direction of the matching rod 72.

[0070] Reference Fig.12 and Fig.13 The shell box 32 includes a box body 321 and a partition 322. The box body 321 is hollow inside and has an opening on the side near the support shell 311. Multiple partitions 322 are arranged inside the box body 321 in a direction perpendicular to the opening of the box body 321 and the barrel 21, so that the internal space of the box body 321 is evenly divided into multiple parts. In this embodiment, three partitions 322 are provided, and the distance between adjacent partitions 322 is not less than the diameter of the shell. In this embodiment, the diameter of the shell is 120 mm, and the spacing between the partitions 322 is 200 mm. The internal space of the box body 321 is divided into four shell cavities 323, and multiple shells can be arranged in each shell cavity 323 along a direction parallel to the partition 322.

[0071] Reference Fig.12 and Fig.13A pushing assembly 324 is provided on the side wall of the shell cavity 323 away from the opening, and the pushing assembly 324 includes a bullet ejecting plate 3241 and a third elastic member 3242. The bullet ejecting plate 3241 is slidably connected in the shell cavity 323 along a direction parallel to the opening direction of the shell cavity 323. The third elastic member 3242 is provided between the bullet ejecting plate 3241 and the side wall of the shell cavity 323 away from its own opening, and is used to apply a force to the bullet ejecting plate 3241 to make the bullet ejecting plate 3241 move to the outside of the shell cavity 323, and the shells can be automatically ejected from the shell cavity 323 under the action of the force. In this embodiment, the third elastic member 3242 is a spring whose length direction extends along an elliptical spiral trajectory.

[0072] Reference Fig.12 and Fig.13 In the specific loading process, under the action of the third elastic member 3242, the shells tend to move toward the inside of the support shell 311. When there is no shell on the push plate 312, the ejector plate 3241 pushes the shell to move onto the push plate 312, and then the push plate 312 drives the shell to move and load. When a shell has been placed on the push plate 312, the shell blocks the movement of the shell in the box 321. As multiple push plates 312 pass through the opening of the shell cavity 323 one by one, the shells can be pushed into the barrel 21 one by one, realizing continuous loading.

[0073] Reference Fig.12 and Fig.13 The shell box 32 also includes a plurality of stabilizing components 10 arranged corresponding to the shell cavity 323. The stabilizing components 10 include an upper tray 101 and a lower tray 102. The upper tray 101 and the lower tray 102 are respectively arranged on two parallel side walls of the shell cavity 323. The upper tray 101 and the lower tray 102 are provided with arc grooves corresponding to the side walls of the shells. The shells are placed between the upper tray 101 and the lower tray 102. The side walls of the arc grooves can be tangent to the side walls of the shells, thereby improving the stability of the shells during sliding.

[0074] Reference Fig.12 and Fig.13 The opening of the box body 321 is provided with a blocking assembly 8, and the blocking assembly 8 includes a plurality of baffles 81 corresponding to the shell cavities 323 and used to block the opening of the shell cavities 323. The direction parallel to the opening of the shell cavities 323 is defined as the ejection direction, and the baffle 81 can slide in a direction perpendicular to the ejection direction. The sliding baffle 81 can open the opening of the shell cavity 323 to facilitate the ejection of shells, and can also prevent shells from being ejected from the shell cavity 323 when the box body 321 is not in use. At the same time, different shell cavities 323 can be opened in sequence according to the use of shells in the shell cavity 323, so as to facilitate the orderly ejection of shells.

[0075] Reference Fig.12 and Fig.13The blocking assembly 8 also includes a slide rail 82, and two slide rails 82 are arranged at intervals in a direction parallel to the rotation axis of the rotating wheel 3133. The two slide rails 82 are respectively arranged on both sides of the box body 321 and fixed at the opening of the box body 321. A rectangular track groove is provided on the side of the two slide rails 82 close to each other, and the length direction of the track groove is parallel to the arrangement direction of the partitions 322. The side of the multiple baffles 81 close to the track is inserted into the track groove, and can slide along the length direction of the track groove to achieve a sliding connection between the multiple baffles 81 and the box body 321.

[0076] Reference Fig.12 and Fig.14 A limiting block is provided on the side wall of the baffle 81 close to the box body 321, and a limiting groove is provided on the side wall of the track groove corresponding to the limiting block. The side of the limiting block away from the baffle 81 is inserted into the limiting groove, thereby preventing the baffle 81 from sliding and improving the stability of the baffle 81 during the restriction process of the shell box 32. The size of the track groove in the bullet discharge direction is larger than the size of the baffle 81 in this direction, so that the baffle 81 can move in the bullet discharge direction. When it is necessary to control the baffle 81 to cancel the blockage of the shell cavity 323, first move the baffle 81 along the bullet discharge direction to disengage the limiting block from the limiting groove. At this time, the limiting block no longer limits the baffle 81, so that the baffle 81 can slide along the length direction of the track groove.

[0077] Reference Fig.12 and Fig.13 The blocking assembly 8 further includes a plurality of fourth elastic members 83 corresponding to the plurality of baffles 81, and the fourth elastic members 83 are used to apply a force parallel to the length direction of the track groove to the baffles 81. Under the action of the force, when the limit block is separated from the limit groove, the fourth elastic member 83 can drive the baffle 81 to slide automatically, so that the shell cavity 323 is opened.

[0078] Reference Fig.12 and Fig.14 , levers 84 are provided on both sides of the baffle 81 close to the track, and the levers 84 are provided in a direction perpendicular to the track and parallel to the baffle 81. A lever groove 85 is provided on the side of the track groove perpendicular to the baffle 81, and the end of the lever 84 away from the baffle 81 is inserted into the lever groove 85, and can rotate relatively around the center line in its own length direction. The fourth elastic member 83 is a spring, one end of the spring is welded to the lever 84, and the other end is fixed to the side wall of the track groove. The arrangement of the lever 84 and the lever groove 85 allows one side of the baffle 81 to always be in a position close to the box body 321. At the same time, since the lever 84 can rotate relatively, the limit block can be driven to enter or leave the limit groove by rotating the plate rod.

[0079] Reference Fig.12 and Fig.14The blocking assembly 8 also includes a plurality of hooking members 86 corresponding to the baffle 81, including a rotating rod 861 and a hooking portion 862. The rotating rod 861 is rotatably connected to the side wall of the shell cavity 323 perpendicular to the length of the track groove. The hooking portion 862 is integrally formed and arranged at one end of the rotating rod 861 away from its own rotation axis, and is located on the side of the rotating rod 861 close to the outside of the shell cavity 323. A hanging plate 863 is provided at the position corresponding to the hooking portion 862 on the outside of the shell cavity 323, and a hanging hole 864 is opened on the hanging plate 863. The hooking portion 862 passes through the side wall of the shell cavity 323 along the length direction of the track groove and is inserted into the hanging hole 864, so as to block the movement of the baffle 81 along the ejection direction, thereby improving the stability of the limit block limiting the baffle 81.

[0080] Reference Fig.12 and Fig.14 During the actual use of the shell box 32, the third elastic member 3242 pushes the shell to abut against the baffle 81 and exerts a certain force on the baffle 81. The hook 862 is driven to disengage from the hanging hole 864 by rotating the rotating rod 861, and then the shell is driven to move under the action of the third elastic member 3242, and then the baffle 81 is driven to automatically move along the shell discharge direction, so that the limit block is disengaged from the limit groove.

[0081] Reference Fig.12 and Fig.14 , multiple shell cavities 323 are respectively defined as the first shell cavity 323, the second shell cavity 323, the third shell cavity 323... along the arrangement direction. In this embodiment, the hanging plate 863 on the baffle 81 corresponding to the first shell cavity is located on the outer wall of the box body 321. The hanging plate 863 on the baffle 81 corresponding to the second shell cavity 323 is located on the side wall of the first shell cavity 323 close to the second shell cavity 323, and so on. The hook member 86 corresponding to the first shell cavity 323 is defined as the initial moving part 91, and the hook member 86 corresponding to the second shell cavity 323, the third shell cavity 323... is defined as the secondary moving part. A driving part 865 is provided on both the initial moving part 91 and the secondary moving part. The driving part 865 is provided on the side of the rotating rod 861 close to the hook member 86, and is fixedly connected to the hook member 86. The driving portion 865 is provided with a driving inclined surface 87, and the driving inclined surface 87 on the initial moving member 91 is inclined from the side close to the track to the side away from the track in the direction away from the rotating rod 861 along the bullet discharge direction. The driving inclined surface 87 on the secondary moving member is inclined from the side close to the track to the side away from the track in the direction close to the rotating rod 861 along the bullet discharge direction. And the driving inclined surface 87 extends into the adjacent shell cavity 323, such as: the driving portion 865 of the hook member 86 in the second shell cavity 323 extends into the first shell cavity 323.

[0082] Reference Fig.12 and Fig.14In actual use, the baffle 81 on the first shell cavity 323 is opened, and the shells in the first shell cavity 323 are discharged one by one. The ejection plate 3241 in the first shell cavity 323 can abut against the driving inclined surface 87 when sliding toward the opening of the shell cavity 323, and under the action of the driving inclined surface 87, the rotating rod 861 can be driven to move in a direction away from the hanging plate 863, so that the baffle 81 on the second shell cavity 323 can automatically cancel the limit of the baffle 81 in the ejection direction after the shells in the first shell cavity 323 are used up, so that the baffle 81 of the second shell cavity 323 can be automatically opened.

[0083] Reference Fig.12 and Fig.14 An initial triggering member 92 is provided on the outer wall of the box body 321 at a position corresponding to the driving portion 865 on the initial moving member 91. The initial triggering member 92 is provided on a side of the driving portion 865 close to the track. The initial triggering member 92 is slidably connected to the box body 321. Sliding the initial triggering member 92 can make the initial triggering member 92 abut against the driving inclined surface 87 on the initial moving member 91, thereby driving the initial moving member 91 to move in a direction away from the hanging plate 863, thereby canceling the limit on the baffle 81 of the first shell chamber 323.

[0084] Reference Fig.12 and Fig.14 The initial triggering member 92 is provided with a linkage rod 93, one end of which is welded to the initial triggering member 92, and the other end of which extends to the side of the track away from the box body 321. During the installation of the shell box 32, the shell box 32 is moved close to the support shell 311 in a direction perpendicular to the axis of the rotating wheel 3133, and the linkage rod 93 first abuts against the support shell 311 and moves relatively, so that the initial moving member 91 moves, and the limit of the baffle 81 corresponding to the first shell cavity 323 is automatically cancelled.

[0085] The implementation principle of the 120 mm double-barreled rapid automatic mortar of the present application embodiment is as follows: during the use of the mortar, the shell box 32 is loaded in advance. The shell box 32 is placed on the support plate 7, and the matching rod 72 is placed in the matching groove 73, and then the shell is pushed to move forward to make it close to the barrel 21. As the shell box 32 continues to move, the shell box 32 first abuts against the guiding inclined surface on the locking rod 74, driving the locking rod 74 away from the matching rod 72. Then the initial triggering member 92 abuts against the support shell 311, driving the baffle 81 of the first shell cavity 323 to open, at this time the shell moves forward to a specific position, and the locking rod 74 is inserted into the slot 75 to limit the matching rod 72. Then the breech block 23 moves to drive the rotating wheel 3133 to rotate, and triggers the shell to be fired, realizing the continuous firing of the shell and improving the flexibility of combat.

[0086] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A 120 mm double-barreled rapid automatic mortar, comprising a frame (1) and a launching device (2) mounted on the frame (1) for launching shells, characterized in that: The launching device (2) comprises a barrel (21) and a breech block (23), wherein the breech block (23) is slidably arranged in the barrel (21) for loading shells, a shell filling hole (22) is provided on the side wall of the barrel (21), a shell filling device (3) is arranged at a position corresponding to the shell filling hole (22) on the barrel (21), and the shell filling device (3) comprises a support shell (311) and a push plate (312), wherein the push plate (312) is installed on the inner side wall of the support shell (311) and can move along a circular path, wherein the movement path of the push plate (312) passes through the shell filling hole (22), and a shell box (32) is arranged on the side of the movement path of the push plate (312) away from the barrel (21), wherein the shell box (32) is used for storing ammunition.

2. The 120 mm double-barreled rapid automatic mortar according to claim 1 is characterized in that: The loading device (3) further comprises a ring push assembly (313), wherein the ring push assembly (313) comprises a rotating wheel (3133) and a flexible ring (3134), wherein the rotating wheel (3133) is arranged in two in a direction perpendicular to the barrel, the flexible ring (3134) is sleeved on the outside of the rotating wheel (3133), the push plate (312) is mounted on the flexible ring (3134), and the rotation of the rotating wheel (3133) can drive the flexible ring (3134) to rotate.

3. The 120 mm double-barreled rapid automatic mortar according to claim 1 is characterized in that: A linkage assembly (5) is arranged between the barrel (21) and the rotating wheel (3133), wherein the linkage assembly (5) comprises a toggle rod (51), wherein one end of the barrel (21) for firing a shell is defined as a firing end, the toggle rod (51) is located at a side of the breech block (23) away from the firing end, the toggle rod (51) is rotatably connected to the barrel (21), and one end of the toggle rod extends into the barrel (21), and when the breech block (23) approaches the toggle rod (51), the toggle rod (51) can be driven to rotate, and a first rotating shaft (52) and a second rotating shaft (53) are arranged between the toggle rod (51) and the rotating wheel (3133), wherein the first rotating shaft (52) and the second rotating shaft (53) are respectively connected to the toggle rod (51) and the rotating wheel (3133), and the rotation of the toggle rod (51) can drive the rotating wheel (3133) to rotate.

4. The 120 mm double-barreled rapid automatic mortar according to claim 2 is characterized in that: The shell box (32) comprises a box body (321) and a partition (322); the box body (321) is hollow inside and has an opening on one side close to the support shell (311); the partition (322) is arranged in the box body (321) and is arranged in plurality at intervals in a direction perpendicular to the opening of the box body (321) and the barrel (21).

5. The 120 mm double-barreled rapid automatic mortar according to claim 4 is characterized in that: The partition (322) divides the box body (321) into a plurality of shell cavities (323); a pushing assembly (324) is arranged in the shell cavity (323); the pushing assembly (324) comprises a bullet discharge plate (3241) and a third elastic member (3242); the bullet discharge plate (3241) is slidably connected in the shell cavity (323) along a direction parallel to the shell cavity opening; the third elastic member (3242) is used to keep the bullet discharge plate (3241) in a tendency to move toward the outside of the shell cavity (323); a blocking assembly (8) is arranged at the opening of the box body (321); the blocking assembly (8) comprises a plurality of baffles (81) arranged corresponding to the shell cavities (323); and the baffles (81) can slide along the arrangement direction of the partition (322).

6. The 120 mm double-barreled rapid automatic mortar according to claim 5, characterized in that: A limiting block is arranged on one side of the baffle (81) close to the box body (321); a limiting groove is arranged on the box body (321) corresponding to the limiting block; the limiting block is inserted into the limiting groove; the baffle (81) can move in a direction away from the box body (321); when the baffle (81) moves in a direction away from the box body (321), the limiting block can be separated from the limiting groove; a hooking member (86) is rotatably arranged on the box body (321); the hooking member (86) is hooked on the baffle (81) to prevent the baffle (81) from moving in a direction away from the box body (321); and the hooking member (86) can be separated from the baffle (81) by rotating the hooking member (86).

7. The 120 mm double-barreled rapid automatic mortar according to claim 6 is characterized in that: A fourth elastic member (83) is provided on the box body (321) corresponding to the baffle plate (81), and the fourth elastic member (83) enables the baffle plate (81) to maintain a tendency to move in a direction perpendicular to the opening direction of the shell cavity (323). A driving portion (865) is provided on the hook member (86), and a driving inclined surface (87) is provided on the driving portion (865). During the sliding process of the ejection plate (3241), it can abut against the driving inclined surface (87) and drive the hook member (86) in the adjacent shell cavity (323) to rotate.

8. The 120 mm double-barreled rapid automatic mortar according to claim 1 is characterized in that: A support plate (7) is arranged below the shell box (32), and the support plate (7) is fixedly connected to the barrel (21).

9. The 120 mm double-barreled rapid automatic mortar according to claim 8, characterized in that: The support plate (7) is provided with two limiting rods (71), and the limiting rods (71) are arranged on both sides of the shell box (32) along the axis of the rotating wheel (3133).

10. The 120 mm double-barreled rapid automatic mortar according to claim 9, characterized in that: An exhaust hood (24) is provided at the firing end of the barrel (21). The exhaust hood (24) is hollow inside and one side is open. The hood is provided at the firing end of the barrel (21). An exhaust cavity is formed between the exhaust hood (24) and the side wall of the barrel (21). An exhaust hole (27) communicating with the inside of the barrel (21) is provided on the side wall of the barrel (21).

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