A firing mechanism suitable for an externally powered weapon on an unmanned combat platform

Abstract

The application discloses a firing mechanism suitable for an external energy weapon of an unmanned combat platform, which comprises a bolt carrier, a bolt, a firing pin, a hammer, a first machine case simplified body, a guide hammer, a bolt carrier and a bolt are guided to move linearly reciprocatingly, and a working surface for rotating a hammer pull hook and a hammer top rod is arranged; a second machine case simplified body is matched with the upper end of a hammer return rod; the hammer return rod is rotationally connected with the bolt carrier and matched with the hammer at the lower end; the hammer pull hook is rotationally connected with the bolt carrier and provided with a hammer pull hook torsional spring between the bolt carrier; the hammer top rod is rotationally connected with the bolt carrier and provided with a hammer top rod torsional spring between the bolt carrier; and a hammer spring is arranged between the hammer and the bolt carrier and used for pushing the hammer to move forward in a completely released state of the hammer. The application ensures reliable firing when the automatic machine is low-speed returned to the position.

Description

Technical Field

[0001] This invention belongs to the field of firearms design, specifically relating to a firing mechanism suitable for externally powered weapons on unmanned combat platforms. Background Technology

[0002] Externally powered automatic mechanisms use external energy to complete automatic cyclic actions. Unlike conventional firearms, the firing mechanism of externally powered weapons is limited by size requirements, necessitating a compact structure. Furthermore, externally powered firearms require varying rates of fire to adapt to different combat environments. To minimize impact during recoil and ensure firing stability, externally powered automatic mechanisms typically have a lower recoil speed. Using a traditional bolt carrier-driven firing mechanism often results in insufficient firing energy, while employing a traditional hammer-fired mechanism is overly complex.

[0003] Meanwhile, conventional firearms typically use a recoil spring or hammer spring located at the rear to provide energy for firing. To ensure the spring has sufficient energy to reliably complete the firing action, it is usually quite large. During automatic operation, the spring constantly applies force to the automaton, which is beneficial for conventional firearms to complete automatic actions. However, for externally powered firearms, the spring force is always applied as resistance to the automaton, which is detrimental to the smoothness of movement and also leads to a higher required motor power and a larger motor size.

[0004] Therefore, it is of practical value to research a firing mechanism that can fully utilize the advantages of externally powered automatic mechanisms, minimize system size, and reliably strike the primer while ensuring firing stability. Summary of the Invention

[0005] The purpose of this invention is to provide a firing mechanism suitable for externally powered automatic weapons, so as to minimize the size of the weapon system and improve the stability of the automatic weapon's movement, ensuring reliable firing of the primer when returning to position at low speed, and giving full play to the advantages of externally powered automatic weapons.

[0006] The technical solution for achieving the objective of this invention is as follows:

[0007] A firing mechanism for externally powered weapons applicable to unmanned combat platforms includes:

[0008] The bolt carrier is used to drive the bolt in reciprocating motion.

[0009] The bolt is mounted inside the bolt carrier;

[0010] The firing pin, located inside the bolt, is used to fire the ammunition when the bolt has returned to its forward position.

[0011] The hammer is used to strike the firing pin when it is fully disengaged.

[0012] The simplified receiver is used to guide the linear reciprocating motion of the hammer, bolt carrier, and bolt, and has a working surface for rotating the hammer hook and hammer push rod.

[0013] Simplified casing two, used to mate with the upper end of the hammer return lever;

[0014] The hammer return lever is rotatably connected to the bolt carrier, and its lower end engages with the hammer to push the hammer back to the unfired position during recoil.

[0015] The hammer hook, as the first safety, is rotatably connected to the bolt carrier. A hammer hook torsion spring is provided between the hammer hook and the bolt carrier to provide elastic potential energy so that the hammer hook can hook the hammer. During the recoil process, the hammer hook contacts the working surface of the simplified receiver and rotates to disengage from the hammer. During the recoil process, it separates from the working surface of the simplified receiver and returns to its original position under the action of the hammer hook torsion spring.

[0016] The hammer rod, as the first safety, is rotatably connected to the bolt carrier. A hammer rod torsion spring is provided between the hammer rod and the bolt carrier to provide elastic potential energy so that the hammer rod strikes the hammer. During the recoil process, the hammer rod contacts the working surface of the simplified receiver and rotates to disengage from the hammer. During the recoil process, it separates from the working surface of the simplified receiver and returns to its original position under the action of the hammer rod torsion spring.

[0017] The hammer spring is located between the hammer and the bolt carrier and is used to push the hammer forward when it is fully released.

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

[0019] (1) By proposing a firing mechanism suitable for external energy weapons on unmanned combat platforms, it is ensured that the automatic mechanism can reliably fire when it returns to position at low speed;

[0020] (2) By abandoning the traditional method of placing the recoil spring or hammer spring at the rear end, the firing mechanism is built into the bolt carrier, which greatly reduces the size of the firing mechanism, making the system structure more compact and smaller in size; Attached Figure Description

[0021] Figure 1 This is an assembly drawing of the mechanism.

[0022] Figure 2 This is a simplified outline drawing of the casing.

[0023] Figure 3 This is a simplified outline drawing of the casing.

[0024] Figure 4 This is a diagram of the hammer return lever.

[0025] Figure 5 This is a diagram of the hammer's shape.

[0026] Figure 6 This is a drawing of the bolt carrier's outline.

[0027] Figure 7 This is a diagram of the hammer's push rod.

[0028] Figure 8 Outline drawing of hammer pull hook

[0029] Figure 9 This is a diagram illustrating the insurance status.

[0030] Figure 10 Diagram showing the state of the hammer being released. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings.

[0032] Combination Figure 1 The firing mechanism provided in this embodiment for an externally powered weapon suitable for unmanned combat platforms consists of a simplified receiver body 1, a simplified receiver body 2, a hammer return lever 3, a hammer 4, a bolt carrier 5, a bolt 6, a firing pin 8, a hammer push rod torsion spring 9, a hammer push rod 10, a hammer pull hook 11, a hammer pull hook torsion spring 12, and a hammer spring 13.

[0033] Combination Figure 1 The bolt 6 is located inside the bolt carrier 5, and the firing pin 8 is located inside the bolt 6. The bolt 6 has a lug and an actuating ramp, and has a firing pin hole inside to accommodate the firing pin 8. The bolt carrier 5 can drive the bolt 6 to reciprocate and complete the opening and closing process. The left and right hammer rod torsion springs 9 are respectively installed on the protrusions 5f on the left and right sides of the bolt carrier 5, and are used to return the left and right hammer rods 10. The hammer hook torsion spring 12 is installed at the rear of the bolt carrier 5 to return the hammer hook 11. One end of the hammer spring 13 is installed on the hammer spring base 5i on the bolt carrier 5, and the other end is located in the blind hole 4a at the rear of the hammer 4.

[0034] Combination Figure 1 , Figure 2 The simplified receiver 1 has three parallel guide rails on its left and right inner sides, respectively. Each guide rail has a motion guide surface 1a, a hammer rod starting surface 1b, and a hook starting surface 1c. The hammer rod starting surface 1b is located in front of the hook starting surface 1c. The motion guide surface 1a guides the linear movement of the hammer 4, bolt carrier 5, and bolt 6. The hammer rod starting surface 1b drives the hammer rod 10 to rotate, and the hook starting surface 1c drives the hammer hook 11 to rotate. The motion guide surface 1a is a straight surface, while the hammer rod starting surface 1b and the hook starting surface 1c are both inclined surfaces with a certain slope to facilitate the movement of the hammer rod 10 and the hammer hook 11.

[0035] Combination Figure 1 , Figure 3 The simplified casing 2 contains two inclined surfaces 2a and 2b with different slopes. Based on the structural dimensions of the hammer return rod 3, the slope of inclined surface 2a is slightly smaller than that of inclined surface 2b. Inclined surface 2b is located in front of inclined surface 2a. Inclined surfaces 2a and 2b form a V-shaped groove with an open lower end. Below the V-shaped groove is a horizontally arranged hammer return rod clearance groove 2c. The front end of the hammer return rod clearance groove 2c is closed. Inclined surfaces 2a, 2b and clearance groove 2c together form a cavity Ω. The upper end 3c of the hammer return rod always moves within the cavity Ω of the simplified casing 2.

[0036] Combination Figure 1 , Figure 4 The lower end 3a of the hammer return rod is located in the hammer return rod relief groove 4b at the upper end of the hammer 4, and can only move within it. A cylindrical hole 3b is opened in the middle part, so that it can rotate around the cylindrical rod 5b at the upper end of the bolt carrier 5.

[0037] Combination Figure 1 , Figure 5 The hammer 4 is a translational hammer with a blind hole 4a at the tail to accommodate one end of the hammer spring 13. A hammer return rod clearance groove 4b is located on the upper side to accommodate the lower end 3a of the hammer return rod 3. The front has a firing pin striking part 4c, and motion guide grooves 4d are located on both sides, which mate with the motion guide surface 1a of the upper guide rail of the simplified housing 1. Two symmetrical push rod working surfaces 4e are located on the lower side, allowing the hammer push rods 10 on both sides to jointly press against the hammer 4. A hammer hook window 4f is located inside, which mates with the hook head 11a on the hammer hook 11.

[0038] Combination Figure 1 , Figure 6 The bolt carrier 5 has a hammer return rod clearance groove 5a on its upper side, a cylindrical rod 5b on its upper right side, and motion guide grooves 5c on both sides. The motion guide grooves 5c cooperate with the motion guide surface 1a of the guide rail on the simplified receiver body 1. Symmetrical hammer rod receiving cavities 5d are provided on the lower left and right sides. Cylindrical protrusions 5f are provided on both sides for installing hammer rod torsion springs 9. A limiting post 5e is provided at the front end of the cylindrical protrusion 5f to restrict the outward rotation of the front end of the hammer rod 10, so that the front end of the hammer rod 10 can only move inward. A hammer hook clearance surface 5g is provided at the rear, and a cylindrical hole 5h is provided vertically at the rear for cooperation with a pin. A hammer hook torsion spring 12 can be installed inside the rear. Simultaneously, the bolt carrier 5 is provided with a hammer spring base 5i to hold one end of the hammer spring 13.

[0039] Combination Figure 1 , Figure 7The hammer rods 10 are a pair, left and right. The rear end 10a of the hammer rod abuts against the working surface 4e of the hammer 4, and the front end 10c is located in the hammer rod receiving cavity 5d on the lower side of the bolt carrier 5. The central hole 10d of the hammer rod engages with the cylindrical protrusion 5f on the lower side of the bolt carrier 5, allowing it to rotate around the central hole. A limiting groove 10b is provided between the central hole 10d and the front end 10c of the hammer rod, which engages with the limiting post. Under the action of the hammer rod torsion spring 9, the rear end of the hammer rod 10 abuts against the hammer 4.

[0040] Combination Figure 1 , Figure 8 , Figure 8 In the safety configuration, the hammer 4 is protected. The hook head 11a of the hammer hook is placed inside the hammer 4, hooking the hammer hook window 4f, and the other end, the starting head 11b, contacts the hammer hook starting surface 1c of the receiver guide rail. The cylindrical hole 11c of the hammer hook is placed inside the rear of the bolt carrier 5 and is concentric with the cylindrical hole 5h, allowing it to rotate within the bolt carrier 5 around the locating pin connecting the hammer hook 11 and the bolt carrier 5.

[0041] The agency's working process is as follows: the initial insurance status is as follows: Figure 9 As shown, the bolt carrier 5 drives the automatic mechanism to return forward, and the hammer return lever 3 moves along the clearance groove 2c. Near the final return position, the bolt carrier 5 moves to a specific position, and the starting head 11b of the hammer hook 11 contacts the hammer hook starting surface 1c on the simplified receiver 1. The starting head 11b drives the hammer hook 11 to rotate outward around the cylindrical hole 5h inside the bolt carrier 5, causing the hammer hook head 11a to disengage from the hook window 4f inside the hammer 4. At this point, the safety is disengaged, but the rear end of the hammer push rod 10 still presses against the push rod working surface 4e on the hammer 4, and the hammer 4 is not yet released. During this process, the upper end of the hammer return lever 3 moves along the clearance groove 2c to the V-groove between inclined surface 2a and inclined surface 2b, then enters the V-groove and abuts against inclined surface 2b. The bolt carrier 5 continues to move forward. When the bolt carrier 5 has fully returned to its original position, the hammer push rod actuating surface 1b on the simplified receiver 1 contacts the front end 10c of the hammer push rod, causing the hammer push rod 10 to rotate. This removes the rear end of the hammer push rod 10 from the hammer 4, allowing the hammer 4 to be released. At this point, the hammer 4 is completely disengaged, and the mechanism is in the following state: Figure 10 As shown. Under the action of hammer spring 13, hammer 4 moves at a certain speed and strikes firing pin 8, which in turn strikes the primer of ammunition 7, completing the firing. During the process of bolt carrier 5 fully returning to its original position, hammer return lever 3 rotates counterclockwise around cylindrical rod 5b at the upper end of bolt carrier 5 under the restriction of V-groove, with the upper end rotating to inclined surface 2a.

[0042] After the impact, the bolt carrier 5 begins to recoil. At this time, the hammer push rod 10 does not hold the hammer 4, and the hammer pull hook head 11a does not hook the pull hook window 4f inside the hammer 4. During the recoil, the hammer return lever 3 is restricted to move within the receiver simplified body 2. As the bolt carrier 5 moves backward, the receiver simplified body 2 remains stationary, and relative movement occurs between the receiver simplified body 2 and the bolt carrier 5. The upper end of the hammer return lever 3 is driven forward, causing the lower end to move backward. At this time, the hammer return lever 3 is driven to push the hammer 4 backward, returning the hammer 4 to its initial unfired position. Subsequently, the hammer return lever 3 disengages from the V-groove and continues to move along the relief groove 2c. When the hammer rod 10 connected to the bolt carrier 5 disengages from the hammer rod starting surface 1b on the simplified receiver 1, the hammer rod 10 returns to its original position under the action of the hammer rod torsion spring 9, and re-engages the hammer 4. The bolt carrier 5 continues to recoil, and when it recoils until the hammer hook head 11b connected to the bolt carrier 5 disengages from the hammer hook starting surface 1c on the simplified receiver 1, the hammer hook 11b rotates back to its original position under the action of the hammer hook torsion spring 12, and re-engages the hook window 4f inside the hammer 4, thus re-entering the safety position. After completing one firing cycle, the automatic mechanism returns to its original position and repeats the above actions.

Claims

1. A firing mechanism suitable for use with an externally powered weapon of an unmanned combat platform, characterized in that, It comprises: a gun frame for driving the gun to reciprocate; a gun bolt arranged in the gun frame; a firing pin arranged in the gun bolt for firing the ammunition when the gun bolt is in the cocking position; a hammer for hitting the firing pin when the hammer is in the fully released state; a first simplified receiver for guiding the hammer, the gun frame and the gun bolt to reciprocate linearly and having a working surface for rotating the hammer hook and the hammer rod; a second simplified receiver for cooperating with the upper end of the hammer return rod; a hammer return rod connected with the gun frame rotatably and cooperating with the hammer at the lower end for returning the hammer to the un-firing position during the recoil process; a hammer hook connected with the gun frame rotatably and having a hammer hook torsional spring between the gun frame for providing elastic potential to make the hammer hook hook the hammer; the hammer hook is in contact with the working surface of the first simplified receiver to rotate and release the hammer during the cocking process, and is separated from the working surface of the first simplified receiver during the recoil process and is returned under the action of the hammer hook torsional spring; a hammer rod connected with the gun frame rotatably and having a hammer rod torsional spring between the gun frame for providing elastic potential to make the hammer rod hook the hammer; the hammer rod is in contact with the working surface of the first simplified receiver to rotate and release the hammer during the cocking process, and is separated from the working surface of the first simplified receiver during the recoil process and is returned under the action of the hammer rod torsional spring; a hammer spring arranged between the hammer and the gun frame for pushing the hammer to move forward when the hammer is in the fully released state; the upper side of the gun frame is provided with a hammer return rod clearance groove, the two sides are provided with movement guide grooves, the lower side is provided with two symmetrical hammer rod accommodating cavities, and the left and right sides are provided with cylindrical protrusions for installing the hammer rod torsional spring, and the tail is provided with a hammer hook clearance surface and a hammer hook mounting hole; the second simplified receiver is provided with a first inclined surface and a second inclined surface; the second inclined surface is located in front of the first inclined surface, and the first inclined surface and the second inclined surface form a V-shaped groove with an open lower end, a horizontally arranged hammer return rod clearance groove is formed below the V-shaped groove, and the front end of the hammer return rod clearance groove is closed; the upper end of the hammer return rod can move in the V-shaped groove and the hammer return rod clearance groove.

2. The firing mechanism suitable for use with an externally powered weapon of an unmanned combat platform according to claim 1, wherein, the inner side surfaces of the left and right sides of the first simplified receiver respectively include three parallel arranged guide rails, and the three guide rails are respectively provided with a movement guide surface, a hammer rod starting surface and a hook starting surface; the hammer rod starting surface is located in front of the hook starting surface, the movement guide surface is used to guide the linear movement of the hammer, the gun frame and the gun bolt, the hammer rod starting surface is used to drive the hammer rod to rotate, and the hook starting surface is used to drive the hammer hook to rotate.

3. The firing mechanism suitable for use with an externally powered weapon of an unmanned combat platform according to claim 1, wherein, the upper side of the hammer is provided with a hammer return rod clearance groove for accommodating the lower end of the hammer return rod, the front is provided with a firing pin hitting part, the two sides are provided with movement guide grooves, the lower side is provided with two symmetrical rod working surfaces, and the inside is provided with a hammer hook window matched with the hook head of the hammer hook.

4. The firing mechanism suitable for use with an externally powered weapon of an unmanned combat platform of claim 1, wherein, the gun frame is provided with a limiting column for limiting the outward rotation of the front end of the hammer rod; the rear end of the hammer rod abuts against the hammer, the front end is located in the hammer rod accommodating cavity on the lower side of the gun frame, a hammer rod center hole rotatably connected with the gun frame is arranged in the middle, and a limiting groove matched with the limiting column is arranged between the hammer rod center hole and the front end.

5. The firing mechanism suitable for use with an externally powered weapon of an unmanned combat platform of claim 1, wherein, One end of the hammer spring is installed on a hammer spring base on the bolt carrier, and the other end is located in a blind hole at the tail of the hammer.

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