CN207439277U - Underwater gun's bullet bullet based on supercavity principle - Google Patents
Underwater gun's bullet bullet based on supercavity principle Download PDFInfo
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- CN207439277U CN207439277U CN201820113847.4U CN201820113847U CN207439277U CN 207439277 U CN207439277 U CN 207439277U CN 201820113847 U CN201820113847 U CN 201820113847U CN 207439277 U CN207439277 U CN 207439277U
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Abstract
The utility model discloses a kind of underwater gun's bullet bullets based on supercavity principle, are taken off including bullet and bullet is sharp, wherein, bullet takes off to be connected with bullet point, bullet point is equipped with the first cone and the second cone, and the first cone is connected with the second cone, and annular groove is provided between the first cone and the second cone.The underwater gun's bullet bullet based on supercavity principle of the utility model utilizes supercavity principle, pass through the design of warhead form, the water of the bullet appearance of sub-aqua sport is made to become gaseous state from liquid, form supercavity, bullet surface is encased, so as to substantially reduce viscous drag, effectively increases range, fire accuracy and the lethality of bullet in water, both it can use, can also use on land under water.
Description
Technical field
The utility model is related to a kind of gun bullet more particularly to a kind of underwater gun's bullet bullets based on supercavity principle.
Background technology
Due to underwater special operational environment, for fight, frogman develops special weapon, is always each naval power's height weight
Depending on field, traditional Underwater Battery is mainly diver's knife.
The design of common cartridge is to be based on using in air.When shooting in water, since the density of water is that air is close
800 times or so of degree, viscosity and resistance can release itself kinetic energy completely in very short flying distance far above air, bullet
It releases, lethality falls sharply.Experiments have shown that AK47 rifles even can not puncture veneer in one meter of distance under water.
Existing underwater gun's bullet uses special long-rod type flechette-type structure, with ensure bullet under water flight when keep steady
It is fixed, while there is reliable hit rate and lethality.But there are many shortcomings for rod-type flechette-type bullet：First, due to bullet shape
It is elongated, it is necessary to be emitted using special firearms；Second is that the design of ammunition feed mechanism causes the complicated of underwater gun；Third, long-rod type
Flechette-type bullet cannot be shot in air, and land and water adaptability is poor.
Utility model content
The utility model provides a kind of underwater gun's bullet bullet based on supercavity principle, can both use under water,
It can use on land.Specific technical solution is as follows：
A kind of underwater gun's bullet bullet based on supercavity principle, takes off including bullet and bullet is sharp, wherein, bullet takes off to be connected with bullet point,
Bullet point is equipped with the first cone and the second cone, and the first cone is connected with the second cone, is opened between the first cone and the second cone
There is annular groove.
Further, the end that bullet takes off is equipped with groove, and the end of bullet point is equipped with protrusion, and groove is interference fitted with protrusion, will
Bullet takes off to link together with bullet point.
Further, bullet is taken off for copper structure, and bullet point is alloy steel structure.
Further, the first cone on bullet point and the second cone are an integral molding structure.
Further, the first cone on bullet point takes off setting away from bullet, and the cone angle of the first cone is more than the cone angle of the second cone.
Further, the first cone on bullet point takes off setting away from bullet, and the height of the first cone is less than the height of the second cone.
Further, the cross section of the annular groove between the first cone and the second cone is triangle.
The underwater gun's bullet bullet based on supercavity principle of the utility model, make use of supercavity principle, by bullet-shaped
The design of shape makes the water of the bullet appearance of sub-aqua sport become gaseous state from liquid, forms supercavity, encase bullet surface, so as to
The viscous drag of bullet in water is dropped significantly, effectively increases range, fire accuracy and the lethality of bullet in water.This
Outside, the underwater gun's bullet bullet based on supercavity principle of the utility model can both use under water, can also make on land
With.
Description of the drawings
Fig. 1 is the stereogram of the underwater gun's bullet bullet based on supercavity principle of the utility model；
Fig. 2 is the front view of the underwater gun's bullet bullet based on supercavity principle of the utility model.
Specific embodiment
In order to be best understood from the purpose of this utility model, function and specific designing scheme, below in conjunction with the accompanying drawings, to this
A kind of underwater gun's bullet bullet based on supercavity principle of utility model is described in further detail.
As depicted in figs. 1 and 2, the underwater gun's bullet bullet based on supercavity principle of the utility model takes off 1 and bullet including bullet
Point 2, bullet take off 1 and are connected with bullet point 2, it is preferred that it is to be detachably connected that bullet, which takes off 1 with bullet point 2,.Wherein, bullet takes off 1 for cylinder, end
Portion is equipped with groove 11；Bullet point 2 is taper, and end is equipped with protrusion 24.Bullet takes off 1 and is connected with bullet point 2 by protrusion 24 and the cooperation of groove 11
It connects, matching relationship is preferably to be interference fitted.
Preferably, bullet point 2 uses alloy steel, and intensity is high, and hardness is big, to ensure the lethal power of bullet；Bullet takes off 1 and adopts
With copper, facilitate the insertion of rifling.During transmitting, the burning of ammunition can generate a large amount of gases, bullet be released from shell case, bullet
Initial velocity it is very high, but bullet speed is bigger, and the air or water resistance run into is bigger, if bullet is not assigned when going out thorax
Enough rotary inertias, that body will invert, and unacceptable firing error be caused on certain range, therefore bullet takes off and adopts
With copper, so that bullet takes off easy embedded rifling during advancing in gun barrel, bullet is made quickly to rotate, bullet rotation is assigned and is used to
Amount, overcomes air drag torque, so that bullet obtains enough fire accuracies on remote.
In addition, the advantages of copper essentially consists in, ductility is good, there is certain intensity, and than steel more resistant to corrosion, ductility is good
For the manufacture that bullet takes off, precision can be improved, extends die life, and in transmitting, the good bullet of ductility takes off can
To be close to cartridge chamber, airtight effect is played；Meanwhile a kind of copper still metal " lubricant " in itself, be conducive to smoothly take out shell, copper
Heat conductivility is fine, and specific heat is larger, can take away most of heat when taking out shell, reduce the temperature of cartridge chamber.
Further, bullet point 2 is equipped with the first cone 21 and the second cone 22, and the first cone 21 is connected with the second cone 22,
Preferably, the first cone 21 and the second cone 22 are an integral molding structure.Wherein, the first cone 21 is located at the top of bullet point 2,
Compared with the second cone 22, the cone angle of the first cone 21 is larger, and height is relatively low.First cone 21 takes this structure, due to contact
Face is small, the pressure increase suffered by the object contacted with bullet, so as to increase the lethality of bullet；Second cone 22 takes this
Structure, due to the increase of length, can make bullet under water flight when it is more stable.
Further, annular groove 23 is provided between the first cone 21 and the second cone 22, wherein, the cross section of annular groove 23 is excellent
Triangle is elected as, to ensure the formation of supercavity.The bullet of the utility model causes the ring of bullet point 2 due to hydromechanical principle
Water velocity at shape slot 23 raises rapidly, and water, which drastically gasifies, generates vacuole, bullet surface is encased, so as to substantially reduce bullet
Suffered resistance improves bullet speed in water and range, increases the power of bullet in water.
When in use, the underwater gun's bullet bullet based on supercavity principle of the utility model, bullet when emitting on land
Road index is identical with common bullet, can directly be shot under water using common firearms, also can from emitting on the bank into water or
The target of transmitting attack on the bank, fully meets the requirement used in land and underwater environment from water.
The underwater gun's bullet bullet based on supercavity principle of the utility model, make use of supercavity principle, by bullet-shaped
The design of shape makes the water of the bullet appearance of sub-aqua sport become gaseous state from liquid, forms supercavity, encase bullet surface, so as to
The viscous drag of bullet in water is dropped significantly, is effectively increased range, fire accuracy and the lethality of bullet in water, both may be used
To use under water, can also use on land.
The utility model is further described by specific embodiment above, it should be understood that, have here
The description of body, should not be construed as the restriction to the spirit and scope of the utility model, and one of ordinary skilled in the art is readding
The various modifications made after reader specification to above-described embodiment belong to the scope that the utility model is protected.
Claims (6)
1. a kind of underwater gun's bullet bullet based on supercavity principle, takes off including bullet and bullet is sharp, which is characterized in that bullet takes off and bullet point phase
Even, the end that bullet takes off is equipped with groove, and the end of bullet point is equipped with protrusion, and groove is interference fitted with protrusion；Bullet point is equipped with the first cone
Body and the second cone, the first cone are connected with the second cone, and annular groove is provided between the first cone and the second cone.
2. the underwater gun's bullet bullet according to claim 1 based on supercavity principle, which is characterized in that bullet is taken off for copper knot
Structure, bullet point are alloy steel structure.
3. the underwater gun's bullet bullet according to claim 1 based on supercavity principle, which is characterized in that first on bullet point
Cone and the second cone are an integral molding structure.
4. the underwater gun's bullet bullet based on supercavity principle according to claim 1 or 3, which is characterized in that on bullet point
First cone takes off setting away from bullet, and the cone angle of the first cone is more than the cone angle of the second cone.
5. the underwater gun's bullet bullet based on supercavity principle according to claim 1 or 3, which is characterized in that on bullet point
First cone takes off setting away from bullet, and the height of the first cone is less than the height of the second cone.
6. the underwater gun's bullet bullet based on supercavity principle according to claim 1 or 3, which is characterized in that the first cone
The cross section of annular groove between the second cone is triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820113847.4U CN207439277U (en) | 2018-01-23 | 2018-01-23 | Underwater gun's bullet bullet based on supercavity principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820113847.4U CN207439277U (en) | 2018-01-23 | 2018-01-23 | Underwater gun's bullet bullet based on supercavity principle |
Publications (1)
| Publication Number | Publication Date |
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| CN207439277U true CN207439277U (en) | 2018-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820113847.4U Active CN207439277U (en) | 2018-01-23 | 2018-01-23 | Underwater gun's bullet bullet based on supercavity principle |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108844418A (en) * | 2018-07-05 | 2018-11-20 | 北京电子工程总体研究所 | A kind of fin stabilization high speed Supercavitating Projectile |
| CN110017739A (en) * | 2019-04-09 | 2019-07-16 | 北方工业大学 | A kind of underwater bullet bullet and preparation method thereof |
| CN110375594A (en) * | 2019-06-28 | 2019-10-25 | 南京理工大学 | A kind of supercavity long-tail projectile entering water suitable for low-angle |
| CN112444164A (en) * | 2019-09-03 | 2021-03-05 | 南京理工大学 | High-efficiency damaged energy-collecting charge supercavity projectile warhead |
| CN113028908A (en) * | 2021-04-21 | 2021-06-25 | 东北大学 | Underwater stable-rotation supercavitation bullet |
| CN113124718A (en) * | 2021-04-21 | 2021-07-16 | 东北大学 | Supercavitation bullet |
| CN114526646A (en) * | 2022-03-23 | 2022-05-24 | 东北大学 | Cross-medium large-kinetic-energy supercavitation bullet |
| CN115014130A (en) * | 2022-07-14 | 2022-09-06 | 东北大学 | Super-cavity bullet with long underwater penetration distance |
| CN115307491A (en) * | 2022-04-07 | 2022-11-08 | 东北大学 | Underwater motion stable supercavitation bullet |
-
2018
- 2018-01-23 CN CN201820113847.4U patent/CN207439277U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108844418A (en) * | 2018-07-05 | 2018-11-20 | 北京电子工程总体研究所 | A kind of fin stabilization high speed Supercavitating Projectile |
| CN110017739A (en) * | 2019-04-09 | 2019-07-16 | 北方工业大学 | A kind of underwater bullet bullet and preparation method thereof |
| CN110017739B (en) * | 2019-04-09 | 2021-08-17 | 北方工业大学 | Novel underwater bullet warhead and preparation method thereof |
| CN110375594A (en) * | 2019-06-28 | 2019-10-25 | 南京理工大学 | A kind of supercavity long-tail projectile entering water suitable for low-angle |
| CN112444164A (en) * | 2019-09-03 | 2021-03-05 | 南京理工大学 | High-efficiency damaged energy-collecting charge supercavity projectile warhead |
| CN113028908A (en) * | 2021-04-21 | 2021-06-25 | 东北大学 | Underwater stable-rotation supercavitation bullet |
| CN113124718A (en) * | 2021-04-21 | 2021-07-16 | 东北大学 | Supercavitation bullet |
| CN114526646A (en) * | 2022-03-23 | 2022-05-24 | 东北大学 | Cross-medium large-kinetic-energy supercavitation bullet |
| CN115307491A (en) * | 2022-04-07 | 2022-11-08 | 东北大学 | Underwater motion stable supercavitation bullet |
| CN115307491B (en) * | 2022-04-07 | 2024-02-02 | 东北大学 | Supercavitation bullet with stable underwater movement |
| CN115014130A (en) * | 2022-07-14 | 2022-09-06 | 东北大学 | Super-cavity bullet with long underwater penetration distance |
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