A switchable fuze grenade

Abstract

The utility model discloses a switchable fuse's grenade belongs to single soldier tactical weapon technical field. The utility model discloses switchable fuse's grenade, including shell and the safety shell that connects in the shell top, is connected with the safety assembly in the safety shell, still including transmission assembly, firing assembly and detonation assembly: transmission assembly connects in the shell upper and lower inner wall, including hammer pipe, firing assembly connects in transmission assembly upper portion, including hammer, and the upper and lower slide of hammer is connected in hammer pipe, detonation assembly connects in transmission assembly lower portion, including detonator shell, and the detonator shell bottom is fixed with detonator, and the upper portion of detonator is connected with slow fuse and quick fuse in vertical parallel, and the detonator shell rotatory connection is in hammer pipe, and the clearance is reserved between hammer and detonator shell, and in the process of detonator shell rotation, slow fuse and quick fuse alternate alignment hammer, realize the mutual switching of grenade and anti -infantry mine. The technical problem of time -consuming and labor -intensive and big risk of manual modification grenade of prior art has been solved.

Description

Technical Field

[0001] This utility model relates to the field of individual tactical weapon technology, and more specifically to a grenade with a switchable fuse. Background Technology

[0002] The grenade provides multiple safety features through a safety pin and a safety grip. When the user pulls the pin to remove the safety pin and throws the grenade, the grip releases, releasing the firing pin inside the fuse, which strikes the primer and ignites the slow-fire fuse. After a precisely set short delay in the slow-fire fuse, the delay charge burns out and detonates the detonator, ultimately causing the main charge of the grenade to explode.

[0003] In existing hand grenades, the detonation device consists of a primer and a fuse. The primer is connected to the detonator via the fuse. When a soldier pulls out the safety pin and releases the grip, the firing pin strikes the primer, which ignites the fuse, putting the grenade into its detonation countdown. Once the fuse burns to one end of the detonator, it detonates the detonator, thus igniting the grenade.

[0004] In actual combat, soldiers use hand grenades to create various mine traps. The difference between a hand grenade and a landmine is that a hand grenade has a detonation countdown after the safety pin is pulled, while a landmine detonates immediately after the safety pin is pulled. The problem with using hand grenades to create mine traps is that when enemy personnel touch the grenade trap, the safety pin is pulled, putting the grenade into a detonation countdown. During this countdown, the enemy personnel may escape the grenade's kill radius, rendering the grenade trap ineffective.

[0005] To address the aforementioned issues, a search revealed Chinese Patent Publication No. CN 108613597 A, published on October 2, 2018, which discloses a multi-functional infantry explosive device combining an oval grenade, a long-handled grenade, and a landmine. It includes a detonator assembly, a projectile body, a throwing handle, and a landmine kit. The projectile body has an internal channel for loading the detonator cylinder, and an internal thread corresponding to the external thread on the detonator cylinder. The detonator cylinder is connected to the projectile body via a threaded connection. The throwing handle is connected to the projectile body via a threaded connection at the top. A threaded connection is made to the outer wall of the projectile at the lower part of the projectile body, allowing the detonator assembly and the projectile body to form a throwable grenade. Adding a throwing handle to this grenade converts it into a hand grenade. If a soldier wants a landmine, simply remove the throwing handle, add a landmine kit, and reverse the explosive so the landmine kit faces upwards; this converts a throwable grenade into a landmine. The landmine kit consists of a pressure plate, elastic sear, push rod, projectile body connecting threads, detonator firing pin, and detonator impact... The grenade kit is a flexible assembly consisting of a pin spring and a pressure plate safety pin. To use the grenade kit, align the threaded connection of the grenade body with the threaded connection of the outer wall of the grenade body, reverse the grenade so that the pressure plate of the grenade kit faces upwards, and pull out the pressure plate safety pin. At this point, the grenade is in mine mode. The grenade kit contains a flexible sear that acts as a spring and ensures the opening and closing of the detonator firing pin, and a lever for opening and closing the sear. The sear is fixed inside the grenade kit at a certain angle. The detonator firing pin and the firing pin are both... The T-shaped column, under normal conditions, has its pressure plate held upright by the elastic sear, which remains closed, thus securing the detonator's firing pin. When the pressure plate is pressed down, the lever connected to it moves downward, opening the elastic sear from its closed state. Freed from the sear's constraint, the detonator's firing pin, under the action of its spring, strikes the detonator downward. The detonator ruptures and explodes upon impact, detonating the explosives inside the grenade. The proposed modification requires removing the throwing handle, adding a mine kit, and reversing the explosive. However, manually modifying a grenade carries risks and is time-consuming and labor-intensive, making it unsuitable for quickly deploying effective anti-personnel traps in emergency combat missions. Utility Model Content

[0006] 1. Technical problem to be solved by the utility model

[0007] To address the problems of time-consuming, labor-intensive, and risky manual modification of grenades using existing technologies, this utility model provides a grenade with a switchable fuse. By rotating the detonator casing, the slow-speed fuse and the fast-speed fuse are alternately aligned with the hammer, achieving the purpose of switching between a grenade and an anti-personnel mine.

[0008] 2. Technical Solution

[0009] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0010] A grenade with a switchable fuse includes an outer casing and a safety case connected to the top of the outer casing, with a safety component connected inside the safety case; it also includes a transmission component, a firing component, and a detonation component: the transmission component is connected to the upper and lower inner walls of the outer casing and includes a hammer tube; the firing component is connected to the upper part of the transmission component and includes a hammer, which is slidably connected to the hammer tube; the detonation component is connected to the lower part of the transmission component and includes a detonator casing, with a detonator fixed at the bottom of the detonator casing, and a slow-speed fuse and a fast-speed fuse vertically connected side by side above the detonator; the detonator casing is rotatably connected to the hammer tube; a gap is reserved between the hammer and the detonator casing; during the rotation of the detonator casing, the slow-speed fuse and the fast-speed fuse alternately align with the hammer, realizing the switching between the grenade and the anti-personnel mine.

[0011] Further, the grenade with a switchable fuse has an adjustment component connected to the bottom of the outer casing, which can be used to adjust the rotation of the detonator casing, making it easy and effortless to operate.

[0012] The further interchangeable fuse grenade includes an adjustment assembly consisting of a cover attached to the bottom of the detonator casing. The cover has an inverted U-shaped cross-section, and the lower part of the cover has a protruding adjustment post. An exposed adjustment hole is opened on the bottom surface of the adjustment post, which can be seen by flipping the grenade. The grenade and anti-personnel mine settings can be switched through the adjustment hole, making the operation safe and quick.

[0013] A further interchangeable-fuze grenade includes an adjustment assembly that also includes a bottom cover connected to the bottom of the outer casing, with an adjustment stake rotatably connected inside the bottom cover. A transverse mounting hole is formed on the inner wall of the bottom cover, within which a top spring and a top ball are fitted. A top ball groove is formed on the outer wall of the adjustment stake, with the top spring pressing the top ball firmly into the groove. During the rotation of the adjustment stake, the top spring presses the top ball into different top ball grooves, the positions of which correspond to the slow-speed and fast-speed fuses, and corresponding fuse markings are made on the bottom surfaces of the adjustment stake and the bottom cover.

[0014] The grenade features a switchable fuse, with one slow-fire fuse and one fast-fire fuse. The transmission assembly also includes a sleeve and a square tube, which are fixedly connected from top to bottom to the hammer tube. The sleeve is screwed to the upper part of the outer casing. The firing assembly also includes a firing pin with a slider connected to its bottom. A square groove is formed on the bottom surface of the slider. The hammer includes an upper hammer base and a lower hammer tip. The slider, hammer base, square tube, and square groove are all square. The hammer base is inserted into the square groove, and the slider is slidably connected inside the square tube. The square tube in the middle serves as a guide for the hammer as it slides downward, preventing the hammer from deviating and causing misalignment with the primer cap.

[0015] Further interchangeable fuse grenades have corresponding primer caps fixed to the top surface of the detonator casing at the location of both the slow and fast fuses to trigger the fuse.

[0016] Further, there are grenades with switchable fuses, with firing times of 4-5 seconds for slow fuses and 0.3-0.5 seconds for fast fuses, allowing for switching between different time delays.

[0017] Further, the switchable fuse grenade allows for switching between grenade and anti-personnel mine by rotating the adjustment hole to adjust the rotation of the detonator casing, with the primer caps of the slow fuse and the fast fuse alternately aligned with the hammer.

[0018] 3. Beneficial effects

[0019] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0020] This utility model of a grenade with a switchable fuse allows users to choose whether to throw it as a conventional grenade or to create various landmine traps, depending on their needs. This enables them to cope with complex and ever-changing battlefield situations, address new threats and targets, optimize combat efficiency, and simplify logistical support. Furthermore, the use of appropriate markings and a top bead for warning reduces the risk of soldiers making mistakes when selecting the wrong fuse type. Attached Figure Description

[0021] Figure 1 This is a cross-sectional schematic diagram of a hand grenade according to a specific embodiment;

[0022] Figure 2 This is a three-dimensional schematic diagram of a hand grenade in a specific embodiment;

[0023] Figure 3 This is a three-dimensional schematic diagram of a grenade from another angle, according to a specific embodiment.

[0024] Figure 4 This is a schematic diagram of the internal structure of a grenade in a specific embodiment during an explosion.

[0025] Figure 5 This is a cross-sectional structural diagram of the detonation component and the adjustment component in a specific embodiment;

[0026] Figure 6 This is a schematic diagram of the firing pin structure in a specific embodiment.

[0027] In the diagram: 1-Grip; 2-Safety case; 3-Firing pin; 4-Firing pin spring; 5-Transmission assembly; 6-Hammer; 7-Detonation assembly; 8-Outer casing; 9-Adjusting assembly; 11-Pull ring; 12-Safety pin; 31-Slider; 32-Square groove;

[0028] 51-Socket sleeve; 52-Hammer tube; 53-Square tube; 61-Hammer base; 62-Hammer tip;

[0029] 70-Detonator casing; 71-Primer cap; 72-Fast-acting fuse; 73-Slow-acting fuse; 74-Detonator;

[0030] 91-Shell cover; 92-Bottom cover; 93-Top ball groove; 94-Adjustment hole; 95-Adjustment post; 96-Top spring; 97-Top ball. Detailed Implementation

[0031] To further understand the contents of this utility model, a detailed description of the utility model is provided in conjunction with the accompanying drawings.

[0032] Example 1

[0033] The grenade with a switchable fuse in this embodiment, such as Figure 1 , 3 As shown, it includes a housing 8, a transmission assembly 5, a firing assembly and an detonation assembly 7, and a safety case 2 connected to the top of the housing 8. A safety component is connected inside the safety case 2. The safety component is prior art and includes a grip 1, a pull ring 11, a safety pin 12, a firing pin spring 4, a torsion spring, etc. Since it is prior art, the specific positions and connections will not be described in detail.

[0034] The transmission assembly 5 is connected to the upper and lower inner walls of the outer casing 8 and includes a hammer tube 52; the firing assembly is connected to the upper part of the transmission assembly 5 and includes a hammer 6, which is slidably connected to the hammer tube 52; the detonation assembly 7 is connected to the lower part of the transmission assembly 5 and includes a detonator housing 70, with a detonator 74 fixed at the bottom of the detonator housing 70, and a slow-speed fuse 73 and a fast-speed fuse 72 vertically connected side by side above the detonator 74. Multiple slow-speed fuses 73 and fast-speed fuses 72 can be designed as needed; the firing times of the slow-speed fuse 73 and the fast-speed fuse 72 are typically 4-5s and 0.3-0.5s, respectively; the detonator housing 70 is rotatably connected to the hammer tube 52; a gap is reserved between the hammer 6 and the detonator housing 70.

[0035] In this embodiment, the grenade with switchable fuses allows the slow fuse 73 and the fast fuse 72 to alternately align with the hammer 6 during the rotation of the detonator casing 70, thus enabling the grenade and anti-personnel mine to switch between each other.

[0036] Example 2

[0037] The grenade with switchable fuses in this embodiment has the same basic configuration as in embodiment 1. The difference or improvement is that an adjustment component 9 is connected to the bottom of the outer shell 8. The adjustment component 9 includes a shell cover 91 connected to the bottom of the detonator shell 70. Its cross-section is inverted convex. The lower part of the shell cover 91 is a protruding adjustment post 95. An exposed adjustment hole 94 is opened on the bottom surface of the adjustment post 95, which can be seen by flipping the grenade. The rotation of the detonator shell 70 is adjusted by adjusting the adjustment hole 94 to switch between the grenade and anti-personnel mine settings. The operation is convenient, labor-saving, safe and quick.

[0038] Example 3

[0039] The switchable fuse grenade of this embodiment has the same basic configuration and steps as in Embodiment 2, with the following differences or improvements: Figure 5 As shown, there is one slow fuse 73 and one fast fuse 72; as Figure 1 , 4 As shown in Figures 5 and 6, the transmission assembly 5 also includes a sleeve 51 and a square tube 53, which are fixedly connected from top to bottom to the hammer tube 52. The sleeve 51 is screwed to the upper part of the outer casing 8. The firing assembly also includes a firing pin 3, with a slider 31 connected to the bottom of the firing pin 3. A square groove 32 is opened on the bottom surface of the slider 31. The hammer 6 includes an upper hammer seat 61 and a lower hammer tip 62. The slider 31, hammer seat 61, square tube 53 and square groove 32 are all square. The hammer seat 61 is inserted into the square groove 32. The slider 31 is slidably connected to the square tube 53. The square tube 53 plays a guiding role in the middle of the hammer 6 when it slides downward, so as to prevent the hammer 6 from deviating and causing it to misalign with the primer cap 71.

[0040] The adjusting assembly 9 also includes a bottom cover 92 connected to the bottom of the housing 8, and the adjusting post 95 is rotatably connected to the bottom cover 92. A transverse mounting hole is formed on the inner wall of the bottom cover 92, and a top spring 96 and a top ball 97 are fitted into the mounting hole. A top ball 97 groove 93 is formed on the outer wall of the adjusting post 95, and the top spring 96 presses the top ball 97 tightly into the top ball 97 groove 93. During the rotation of the adjusting post 95, the top spring 96 presses the top ball 97 tightly into different top ball 97 grooves 93. The positions of the top ball 97 grooves 93 correspond to the slow-speed fuse 73 and the fast-speed fuse 72, such as... Figure 2 As shown, corresponding red fuse markings are made on the bottom surfaces of the adjusting pile 95 and the bottom cover 92. The top surfaces of the detonator casing 70 at the locations of the slow fuse 73 and the fast fuse 72 are each fixed with a primer cap 71 connected to the fuse to trigger it.

[0041] In this embodiment, the switchable-fuze grenade allows for switching between grenade and anti-personnel mine modes by rotating the adjustment hole 94, which in turn rotates the detonator housing 70. The primer caps 71 of the slow-speed fuse 73 and the fast-speed fuse 72 alternately align with the hammer 6. When switching from grenade to anti-personnel mine mode, the primer cap 71 is directly connected to the detonator 74 and ignited without delay, serving as an alternative to connecting the fast-speed fuse 72 to the detonator 74.

[0042] The working principle of the switchable fuse grenade in this embodiment is as follows:

[0043] 1. When using a grenade in a conventional manner, pull out the pin 11, release the grip 1, and start the grenade's detonation countdown. Throw the grenade directly at the target.

[0044] 2. When using hand grenades to make anti-personnel mine traps, insert the tip of a hex screwdriver or a military knife into the adjustment hole 94 at the bottom of the adjustment post 95, rotate the adjustment post 95 to make the detonator shell 70 rotate in the hammer tube 52, until the primer cap 71 connected to the upper end of the quick fuse 72 is rotated to the lower end of the hammer tip 62, the top ball 97 spring will push the top ball 97 into the top ball 97 groove 93 on one side of the adjustment device and make a sound to indicate to the soldier that the rotation is in place, thus completing the fuse switching. You can also observe whether the fuse mark is in place to double confirm the fuse switching. When a grenade with a switched fuse is deployed on the battlefield, and enemy personnel touch the trap and pull out the grenade's pin 11, the firing pin 3, under the pressure of the firing pin spring 4, causes the hammer tip 62 at the lower end of the hammer 6 to strike the primer cap 71 connected to the quick-release fuse 72. This causes the primer cap 71 to ignite the quick-release fuse 72 and detonate the detonator 74, thereby shortening the explosion delay time. This prevents enemy personnel from escaping the grenade's kill zone within the short explosion delay time, achieving rapid switching of the grenade's fuse detonation time and enabling the grenade to be used to create effective anti-personnel traps.

[0045] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention. The actual structure and manufacturing steps are not limited to these. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A grenade with a switchable fuse, comprising a casing and a safety case connected to the top of the casing, wherein a safety component is connected inside the safety case; characterized in that, Also includes: The transmission assembly, which is connected to the upper and lower inner walls of the housing, includes the hammer tube; The firing assembly, which is connected to the upper part of the transmission assembly, includes a hammer that is slidably connected inside the hammer tube; The detonation assembly, which is connected to the lower part of the transmission assembly, includes a detonator housing, a detonator fixed at the bottom of the detonator housing, and a slow-speed fuse and a fast-speed fuse vertically connected side by side above the detonator; the detonator housing is rotatably connected inside the hammer tube. During the rotation of the detonator casing, the slow-speed fuse and the fast-speed fuse alternately align with the hammer.

2. The grenade with a switchable fuse according to claim 1, characterized in that: An adjustment component is connected to the bottom of the outer casing to adjust the rotation of the detonator casing.

3. The grenade with a switchable fuse according to claim 2, characterized in that: The adjustment assembly includes a shell cover connected to the bottom of the detonator shell, the lower part of the shell cover is an adjustment post, and an exposed adjustment hole is opened on the bottom surface of the adjustment post.

4. The grenade with a switchable fuse according to claim 3, characterized in that: The adjustment assembly also includes a bottom cover connected to the bottom of the housing, and the adjustment pile is rotatably connected to the bottom cover; a horizontal mounting hole is opened on the inner wall of the bottom cover, and a top spring and a top ball are installed in the mounting hole; a top ball groove is opened on the outer wall of the adjustment pile, and the top spring presses the top ball tightly in the top ball groove.

5. The grenade with a switchable fuse according to claim 4, characterized in that: The system includes one slow-speed fuse and one fast-speed fuse; the firing assembly also includes a firing pin, the bottom of which is connected to a slider, and a square groove is formed on the bottom surface of the slider; the hammer includes an upper hammer base and a lower hammer tip, and the slider, hammer base, square tube, and square groove are all square; the hammer base is inserted into the square groove, and the slider is slidably connected to the square tube.

6. The grenade with a switchable fuse according to claim 5, characterized in that: The top surface of the detonator casing at the location of both the slow-speed and fast-speed fuses is fixed with a corresponding primer cap.

7. The grenade with a switchable fuse according to claim 6, characterized in that: The firing times of the slow fuse and the fast fuse are 4-5s and 0.3-0.5s, respectively; corresponding slow fuse and fast fuse markings are set on the bottom surface of the adjusting pile and the bottom cover.

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