Underwater Special Seed Bomb

The conical design, which combines a hollow bullet head with a cartridge case center post, solves the problem of insufficient underwater bullet range, enabling efficient firing in water and air, reducing water resistance, and improving firing efficiency.

CN112066818BActive Publication Date: 2026-03-13严庆
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-08-03
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing underwater bullets have limited range in water and cannot be fired in the air, requiring specialized firearms for firing, and existing designs suffer from significant water resistance.

Method used

The design incorporates a conical structure that combines a hollow projectile with a cylindrical core in the cartridge case. The projectile is hollow and has an outward bevel at the top, which generates air bubbles to reduce water resistance. Combined with the cylindrical design at the bottom of the cartridge case, this design enables efficient firing in water.

Benefits of technology

This technology increases the range of underwater bullets in water and enables them to be fired in the air, reducing water resistance and improving firing efficiency.

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Abstract

Underwater special-purpose ammunition is a specialized bullet for underwater firearms. A cylinder is located in the center of the bottom of the cartridge case; the space between the cylinder and the cartridge case wall is the ammunition chamber. The portion extending from the cartridge case is conical and penetrates the bullet. The hollow, conical bullet fits snugly against the cylinder in the cartridge case to form a complete bullet. When the bullet is propelled out of the cartridge by the thrust generated by the combustion of the ammunition, the bullet separates from the cylinder. Because the bullet is hollow, it experiences minimal head-on resistance in water. Furthermore, the outward-angled design at the top of the bullet creates a bubble effect, further reducing drag as the bullet moves within the bubble. These two effects combine to allow the bullet to travel efficiently through the water, achieving long-range firing. The bullet and cartridge case of this invention are formed by compression and adhesive bonding. This invention does not alter the conventional primer design.
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Description

[0001] Technical Field of Underwater Special Ammunition: This invention relates to a special ammunition for underwater firearms.

[0002] Background Technology: Currently, my country does not have its own intellectual property rights for underwater bullets. There are two existing types of underwater bullets: one is the "rod-shaped arrow" bullet, which has a relatively long, arrow-like projectile. It requires a specialized firearm for firing and cannot be fired in air. The second type is the "supercavitating" bullet, which has a concave groove in its projectile. During its flight, the bullet generates air bubbles, reducing drag and allowing it to achieve a longer range. Reports indicate that underwater bullets can currently achieve a firing range of up to 25 meters.

[0003] Summary of the invention: This invention starts by changing the structure of the bullet to reduce water resistance, thereby increasing the effective range of the bullet in water.

[0004] The technical problem to be solved: The hollow projectile designed in this invention can effectively reduce the drag of the bullet facing the water. The outward bevel design of the projectile head allows the projectile to generate a "bubble" phenomenon, thereby reducing drag. With the combined effect of these two design features, the underwater bullet can achieve a longer effective range. The ammunition of this invention can be used in air.

[0005] Technical solution:

[0006] The underwater special-purpose bullet has a cylinder in the middle of the bottom of the cartridge case, and the part extending out of the cartridge case is conical and penetrates the warhead.

[0007] The hollow, conical bullet fits perfectly with the cartridge case's central post to form a complete bullet. When the bullet is propelled out of the projectile by the thrust generated by the explosive combustion of the ammunition, the hollow bullet experiences low head-on pressure. Furthermore, the outward-angled design at the top of the bullet creates air bubbles, allowing the bullet to move within these bubbles. The combined effect of these two factors reduces drag, enabling the bullet to travel efficiently through water and achieve long-range firing.

[0008] The projectile and cartridge case of this invention are formed by pressing and adhesive bonding. This invention maintains the conventional firing mechanism.

[0009] Attached diagram description: (Indicates the names of each part)

[0010] Figure 1 This is a diagram of the warhead for an underwater special munition. The warhead is hollow in the middle.

[0011] Figure 2 This is a structural diagram of the cartridge case for an underwater special-purpose projectile. The cartridge case contains a central pillar.

[0012] Figure 3This is a structural diagram of an underwater special-purpose bullet. The warhead and cartridge case core fit together perfectly, forming a complete bullet with the ammunition and primer. The warhead and cartridge case are formed by compression and adhesive bonding, without altering the conventional firing design.

Claims

1. An underwater special bullet, characterized by: The application relates to a bullet, which comprises a bullet head and a bullet shell, wherein the bullet head is hollow and conical, and the top of the bullet head is provided with an outer bevel; the bottom of the bullet shell is provided with a bullet shell middle column, the bullet shell middle column is a cylinder and is conical at the part extending out of the bullet shell and penetrates the bullet head; the bullet head and the bullet shell middle column are completely matched, and the bullet, the primer and the bullet shell constitute a complete bullet; the bullet head and the bullet shell are formed by pressing and adhesive, and the conventional firing design is not changed.

Citation Information

Patent Citations

  • High speed hollow cylinder bullet

    DE19711344A1

  • The warhead with the air hole

    KR1020090087160A