Lever type on-hook side firing device

Abstract

The utility model relates to the technical field of recoil-free cannon, in particular to a lever type on-hook side firing device which comprises a side firing device shell, a transmitter and a firing machine are arranged in the side firing device shell, and the transmitter comprises a deflector rod, a trigger assembly and a control block; the control block is movably arranged in the grip, the deflector rod is rotationally connected in the grip, and one end of the deflector rod is slidably connected with the control block through a cam pair; the trigger assembly comprises a trigger rotationally connected in the grip and a sear fixed on the trigger; the percussion machine comprises a driving hammer and a firing pin seat, a shifting rod is shifted to drive a control block to enable the driving hammer to move, a trigger is pulled to release the elastic force of a driving hammer spring and drive the driving hammer to impact the firing pin seat to enable the firing pin seat to rotate upwards, and a firing pin above the firing pin seat strikes primer on the recoil-free cannon shell to complete percussion. The acting force in the horizontal direction is adjusted to be the acting force perpendicular to the axis of the artillery barrel through the swing mechanism composed of the driving hammer, the firing pin base and the like, and higher energy conversion efficiency is achieved while firing operation is achieved compared with a traditional mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of recoilless guns, in particular to a lever-type hook-and-shoot side-firing device. Background Art

[0002] The side-firing device of a recoilless gun usually uses an oblique impact method. The conventional structure has low impact conversion efficiency. After the firing is completed, it is necessary to hang up again to complete the operation of ejecting the cartridge and loading a new bullet. During this process, the firing mechanism is always in a stored energy state, which poses a safety risk. Summary of the Invention

[0003] In order to solve the above problems, the utility model provides a lever-type hook-on side-firing device, including a side-firing device housing, the side-firing housing device including a handle and a protective tube, both of which have interconnected inner cavities, the inner cavity of the handle is provided with a transmitter, and the inner cavity of the protective tube is provided with a firing mechanism, characterized in that:

[0004] The trigger comprises a lever, a trigger assembly, and a control block; the control block is movably disposed within the grip; the lever is L-shaped and rotatably connected to the grip via a rotating shaft with a torsion spring; one end of the lever is slidably connected to the control block, and the other end extends outside the grip; the trigger assembly comprises a trigger rotatably connected to the grip and a sear fixed to the trigger; the control block is provided with a sear slot into which the sear extends, for preventing movement of the control block;

[0005] The firing mechanism includes a hammer and a firing pin seat. The hammer includes a hammer rod and a hammer head arranged at one end of the hammer rod. The other end of the hammer rod is connected to the control block. A hammer spring is provided on the outside of the hammer rod. One end of the hammer spring is fixed on the hammer rod, and the other end is connected to the protective tube. The firing pin seat is rotatably connected to the firing pin movement chamber, and a firing pin is provided on the firing pin seat. When the trigger is pulled, the hammer spring drives the hammer to move, the hammer head hits the firing pin seat and causes the firing pin seat to rotate upward, and the firing pin strikes the primer on the recoilless gun shell to complete the firing.

[0006] Furthermore, the side firing device also includes a trigger safety assembly, which is rotatably arranged on the handle and includes a coaxially connected safety knob and a safety block. A safety slot is provided at the bottom of the control block for the safety block to extend into, so as to prevent the movement of the control block.

[0007] Furthermore, the side firing device also includes a firing pin safety assembly, which includes a firing pin safety rod, a firing pin safety fork and a limit seat; the end of the firing pin safety fork is connected to one end of the firing pin safety rod through a connecting rod, the connecting rod passes through the limit seat and a spring is provided between the firing pin safety fork and the limit seat; a trigger extension is provided at one end where the trigger is connected to the grip, and the trigger extension is connected to the other end of the firing pin safety rod; safety protrusions are provided on both sides of the firing pin seat, and the firing pin safety fork is normally located above the safety protrusion to prevent the firing pin seat from rotating upward.

[0008] Furthermore, a retractable firing pin reset rod is provided on the firing pin seat, and a firing pin reset spring is provided inside the firing pin reset rod.

[0009] Furthermore, a shift ring is provided at one end of the shift rod extending out of the handle.

[0010] Furthermore, the hammer rod and the control block are connected by mortise and tenon joints.

[0011] Furthermore, the protective tube has a fixed structure for the recoilless gun. In summary, the present invention has at least one of the following beneficial effects:

[0012] The utility model drives the hammer to move by pulling the control block through the lever, uses the sear to realize the hanging operation, accumulates force through the hammer spring, and after pulling the trigger, the hammer spring drives the hammer to hit the firing pin seat. The rotary mechanism connecting the firing pin seat and the side firing device shell adjusts the horizontal force to a force perpendicular to the axis of the gun barrel, realizing the firing operation while having higher energy conversion efficiency than the traditional mechanism.

[0013] The utility model is provided with a double safety structure of a trigger safety and a firing pin safety, which effectively prevents abnormal firing caused by the hammer hitting the firing pin seat after the hammer accumulates power due to problems such as accidental trigger contact or inadequate locking. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the structure of the transmitter and the firing mechanism;

[0016] Figure 3 It is another structural diagram of the transmitter and the firing mechanism;

[0017] Figure 4 for Figure 2 Front view;

[0018] Figure 5 for Figure 2 Top view;

[0019] Figure 6 for Figure 2Bottom view;

[0020] Figure 7 for Figure 3 Partial enlarged view;

[0021] Figure 8 for Figure 4 Partial enlarged view;

[0022] Figure 9 It is a schematic diagram of the firing mechanism structure;

[0023] Figure 10 It is a schematic diagram of the firing pin seat structure;

[0024] The component names corresponding to the numbers are:

[0025] Grip 1, guard tube 2, hammer movement chamber 21, firing pin movement chamber 22, shift rod 3, shift ring 31, trigger assembly 4, trigger 41, sear 42, control block 5, sear groove 51, hammer 6, hammer head 61, hammer rod 62, hammer spring 63, firing pin seat 7, firing pin 71, safety protrusion 72, firing pin reset rod 73, trigger safety assembly 8, safety knob 81, safety block 82, safety assembly 9, firing pin safety pull rod 91, firing pin safety fork 92, limit seat 93, reset spring 94, connecting rod 95. DETAILED DESCRIPTION

[0026] The present invention will be described in further detail below with reference to the accompanying drawings. Example 1

[0027] like Figure 1 As shown, this embodiment discloses a lever-type hook side firing device, which includes a side firing device housing and a transmitter and a firing mechanism installed in the housing, wherein the side firing device housing includes a grip 1 and a protective tube 2 with interconnected inner cavities, and the protective tube 2 is provided with a fixed connection structure with the recoilless gun.

[0028] like Figure 2-3 As shown, the side firing device of this embodiment realizes the hooking and starting of the whole machine through the transmitter, and the firing of the recoilless gun shell is realized by the firing machine. Figure 4-9The trigger mechanism includes a lever 3, a trigger assembly 4, and a control block 5. The control block 5 is located within the grip 1, which houses a receiver for its forward and backward movement. A slot is defined at the bottom of the control block 5, near the trigger mechanism. The lever 3 is L-shaped, with one end connected to the slot via a cam mechanism. Its center is rotatably connected to the grip 1 via a shaft with a torsion spring. The other end extends outside the grip 1, allowing the operator to detent the trigger, which then pulls the control block 5 forward via a connecting rod. The trigger assembly 4 includes a trigger 41 rotatably connected to the grip 1 and a sear 42 fixed to the trigger 41. The control block 5 is provided with a sear slot 51 into which the sear 42 extends. When the lever 3 is detent, the sear 42, driven by the trigger 41's rotating shaft, extends into the sear slot 51, thereby preventing the control block 5 from moving. The trigger assembly 4 is further provided with an elastic component for resetting the trigger 41 and the sear 42 , including but not limited to an elastic rotating shaft or a spring arranged between the trigger 41 and the sear 42 .

[0029] The control block 5 is connected to the firing mechanism's hammer rod 62 on the firing mechanism's side. The other end of the hammer rod 62 is connected to a hammer head 61. A hammer spring 63 is sleeved on the hammer rod 62. One end of the hammer spring 63 is fixed to the protective tube 2, and the other end abuts the hammer head 61. When the control block 5 moves forward, it pulls the hammer rod 62 and hammer head 61, compressing the hammer spring 63 and accumulating force. When the trigger 41 is pulled, the sear 42 rotates and leaves the sear slot 51. The control block 5 loses its restraining force, and the elastic force of the hammer spring 63 is released, causing the hammer rod 62 and hammer head 61 to move backward, ultimately striking the hammer head 61 against the firing pin seat 7.

[0030] The firing pin seat 7 is constructed as an L-shaped block, the top of which is rotatably connected to the protective tube 2 via a rotating shaft. The L-shaped connection point has a protrusion that receives force from the hammer head 61. A firing pin 71 is located at the lower apex of the firing pin seat 7. When the hammer head 61 strikes the firing pin seat 7, the firing pin seat 7 rotates upward along the rotating shaft, and the firing pin 71 strikes the primer of the recoilless gun shell, completing the firing. To ensure that the firing pin seat 7 can quickly return to its original position after firing, this embodiment also includes a retractable firing pin reset lever 73 on the firing pin seat 7. This lever is equipped with a spring. When the firing pin seat 7 rotates, the top of the firing pin reset lever 73 contacts the inner cavity of the protective tube 2 and retracts, accumulating force. After firing is completed, the spring acts on the firing pin reset lever 73 to extend, returning the firing pin seat 7 to its original position. Example 2

[0031] This embodiment, based on the above-mentioned embodiment, provides a trigger safety assembly 8 for use with the above-mentioned side-firing device. The trigger safety assembly 8 is rotatably mounted on the grip 1 and includes a coaxially connected safety knob 81 and a safety block 82. A safety slot 52 is provided at the bottom of the control block 5 for the safety block 82 to extend into. The safety knob 81 is rotated to cause one end of the safety block 82 to extend into the safety slot 52 and abut against the edge of the safety slot 52, thereby preventing movement of the control block 5. When the safety is to be engaged, the safety knob 81 is rotated, and the safety block 82 rotates out of the safety slot 52 until it is horizontal, at which point the movement restrictions on the trigger and control block are released. Example 3

[0032] In order to further avoid accidental firing due to inappropriate locking or accidental triggering, the present embodiment provides a firing pin safety assembly 9 for use in the above embodiment, wherein the safety assembly 9 includes a firing pin safety lever 91, a firing pin safety fork 92, a limit seat 93 and a connecting rod 95; the end of the firing pin safety fork 92 is connected to one end of the firing pin safety lever 91 through the connecting rod 95, the connecting rod 95 passes through the limit seat 93 and a spring is provided between the firing pin safety fork 92 and the limit seat 93; the end of the trigger 41 connected to the grip 1 is provided with a trigger extension 43, and the trigger extension 43 is connected to the other end of the firing pin safety lever 91; safety protrusions 72 are provided on both sides of the firing pin seat 7, and the firing pin safety fork 92 is normally located above the safety protrusion 72 to prevent the firing pin seat 7 from rotating upward. When the trigger 41 is pulled, the trigger extension 43 moves forward, pulling the firing pin safety lever 91. The firing pin safety lever 91 drives the firing pin safety fork 92 to move via the connecting rod 95. At this time, the firing pin safety fork 92 compresses the spring between the firing pin safety fork 92 and the stop seat 93 until the firing pin safety fork 92 disengages from the safety projection 72. At this point, the firing pin safety is engaged, and the firing pin block 7 can fire normally. After the firing is completed, the trigger 41 is released, and the firing pin safety fork 92 moves backward under the action of the spring. The upper end of the safety projection 72 is set to a suitable length and arc so that it contacts the firing pin safety fork 92 and then moves along the upper curved surface to assist the firing pin block 7 to return downward. The firing pin safety fork 92 returns to above the safety projection 72, re-engaging the safety.

[0033] This new mechanism uses a lever to pull a control block to drive the hammer, uses a sear to achieve a latching operation, and uses a hammer spring to store force. When the trigger is pulled, the hammer spring drives the hammer to strike the firing pin. A rotary mechanism connecting the firing pin and the side firing mechanism housing adjusts the horizontal force to a force perpendicular to the axis of the gun barrel, achieving firing while achieving higher energy conversion efficiency than traditional mechanisms. This mechanism also incorporates a dual safety structure: a trigger safety and a firing pin safety, effectively preventing misfiring caused by the hammer striking the firing pin after storing force, due to problems such as accidental triggering or an incomplete latching operation.

Claims

1. A lever-type hook side firing device, comprising a side firing device housing, the side firing device housing comprising a handle (1) and a protective tube (2) both having interconnected inner cavities, the handle (1) having an inner cavity provided with a transmitter, and the protective tube (2) having an inner cavity provided with a firing mechanism, characterized in that: The transmitter comprises a lever (3), a trigger assembly (4) and a control block (5); the control block (5) is movably arranged in the grip (1); the lever (3) is L-shaped and is rotatably connected to the grip (1) via a rotating shaft with a torsion spring; one end of the lever (3) is slidably connected to the control block (5) via a cam pair, and the other end extends out of the grip (1); the trigger assembly (4) comprises a trigger (41) rotatably connected to the grip (1) and a sear (42) fixed on the trigger (41); the control block (5) is provided with a sear groove (51) for the sear (42) to extend into, for preventing the control block (5) from moving; The firing mechanism comprises a hammer (6) and a firing pin seat (7), which are respectively arranged in a hammer movement chamber (21) and a firing pin movement chamber (22) at the end of the protective tube (2); the hammer (6) comprises a hammer rod (62) and a hammer head (61) arranged at one end of the hammer rod (62), the other end of the hammer rod (62) is connected to the control block (5), and a hammer spring (63) is provided outside the hammer rod (62), one end of the hammer spring (63) is fixed to the hammer rod (62), and the other end is connected to the protective tube (2); the firing pin seat (7) is rotatably connected to the firing pin movement chamber (22), and a firing pin (71) is provided on the firing pin seat (7); when the trigger (41) is pulled, the hammer spring (63) drives the hammer (6) to move, the hammer head (61) hits the firing pin seat (7) and causes the firing pin seat (7) to rotate upward, and the firing pin (71) strikes the primer on the recoilless gun shell to complete the firing.

2. The lever-type hook-type side-firing device according to claim 1, characterized in that: The side-firing device further comprises a trigger safety assembly (8), which is rotatably mounted on the grip (1) and comprises a coaxially connected safety knob (81) and a safety block (82). A safety slot (52) is provided at the bottom of the control block (5) for the safety block (82) to extend into, so as to prevent the control block (5) from moving.

3. The lever-type hook-type side-firing device according to claim 1, characterized in that: The side firing device also includes a firing pin safety assembly (9), and the safety assembly (9) includes a firing pin safety pull rod (91), a firing pin safety fork (92) and a limit seat (93); the end of the firing pin safety fork (92) is connected to one end of the firing pin safety pull rod (91) through a connecting rod (95), the connecting rod (95) passes through the limit seat (93), and a spring is provided between the firing pin safety fork (92) and the limit seat (93); the end of the trigger (41) connected to the grip (1) is provided with a trigger extension (43), and the trigger extension (43) is connected to the other end of the firing pin safety pull rod (91); safety protrusions (72) are provided on both sides of the firing pin seat (7), and the firing pin safety fork (92) is normally located above the safety protrusions (72) to prevent the firing pin seat (7) from rotating upward.

4. The lever-type hook-type side-firing device according to claim 3, characterized in that: A retractable firing pin reset rod (73) is provided on the firing pin seat (7), and a firing pin reset spring is provided inside the firing pin reset rod (73).

5. The lever-type hook-type side-firing device according to claim 1, characterized in that: One end of the shifting rod (3) extending outside the handle (1) is provided with a shifting ring (31).

6. The lever-type hook-type side-firing device according to claim 1, characterized in that: The hammer rod (62) and the control block (5) are connected in a mortise and tenon manner.

7. The lever-type hook-type side-firing device according to claim 1, characterized in that: The protective tube (2) is provided with a fixed connection structure of a recoilless gun.

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