CN116222317A - Mortar simulated shell - Google Patents

Abstract

The invention discloses a mortar simulated projectile, which comprises a projectile body, a tail pipe arranged at the tail part of the projectile body and a tail fin arranged at the tail part of the tail pipe, wherein a large amount of stored step/machine gun blank projectile is taken as a basic medicine pipe, a driving piece similar to a piston and a relatively closed space are arranged in the tail pipe, so that the medicine charge of the blank projectile can be fully combusted, the driving piece relatively moves relative to the tail pipe under the action of high-pressure gas, and the rear end of the driving piece is contacted with a needle base and cannot move backwards, so that the tail pipe and the projectile body are reversely pushed to move towards a muzzle, the projectile body is propped against a ship like a supporting ship, a certain initial speed is provided, and finally the simulated ejection muzzle can be effectively improved, and the psychological training of a gun can be carried out.

Description

Mortar simulated shell

Technical Field

The invention relates to a mortar simulated bullet, and belongs to the field of military training.

Background

Mortars are largely equipped in troops, mainly with fire, by infantry. Because of the special mode of loading the shell from the muzzle of the mortar, a fighter has to tie a rope on the simulated shell when loading the shell for many years, and pull the shell out of the gun barrel by using the rope after loading, so the operation is repeated, and the training effect is poor.

Disclosure of Invention

The present invention provides a mortar simulated projectile which solves the problems disclosed in the background art.

In order to solve the technical problems, the invention adopts the following technical scheme:

a simulated mortar shell comprises a shell body, a tail pipe arranged at the tail part of the shell body and a tail fin arranged at the tail part of the tail pipe, wherein a first cavity is formed in the tail pipe, an exhaust port communicated with the first cavity is formed in the tail pipe, a hollow driving piece which can stretch out and draw back from the rear end of the tail pipe is slidably connected in the first cavity, a basic medicine tube is filled at the rear end of the inner cavity of the hollow driving piece, gas generated by firing the basic medicine tube expands a space between the front end of the hollow driving piece and the front end of the first cavity, the hollow driving piece is driven to move relatively in the first cavity, and when the relative movement reaches a preset position, the gas is discharged from the exhaust port.

The basic medicine tube is a rifle or a machine gun blank cartridge (hereinafter referred to as a step/machine gun blank cartridge).

The rear end of the hollow driving piece is detachably connected with a second restraint piece, the second restraint piece is used for restraining the basic medicine tube in the inner cavity of the hollow driving piece, and a firing hole which is communicated with the inner cavity of the hollow driving piece and used for passing through the firing pin is formed in the second restraint piece.

The hollow driving piece is sleeved with a reset piece, so that the hollow driving piece resets after relatively moving in the first cavity.

The exhaust port is positioned on the side wall of the tail pipe, the hollow driving piece moves to a preset position in the first cavity relatively, and the exhaust port is communicated with a space between the front end of the hollow driving piece and the front end of the first cavity.

The outer wall of the hollow driving piece is provided with a limiting piece, the hollow driving piece moves to a preset position in the first cavity relatively, and the limiting piece abuts against the rear end face of the tail pipe.

A simulated mortar shell comprises a shell body, a tail pipe arranged at the tail part of the shell body and a tail fin arranged at the tail part of the tail pipe, wherein a second cavity is arranged in the tail pipe, an exhaust port communicated with the second cavity is arranged on the tail pipe, the rear end of the second cavity is used for filling a basic medicine tube, and gas generated by firing the basic medicine tube is sequentially discharged through the second cavity and the exhaust port.

The basic medicine tube is a step/machine gun empty bomb.

The rear end of the second cavity is detachably connected with a third restraint piece, the third restraint piece is used for restraining the basic medicine tube in the second cavity, and a firing hole communicated with the second cavity and used for passing through the firing pin is formed in the third restraint piece.

The second cavity comprises an inner cavity and an outer cavity, the rear end of the inner cavity is used for filling a basic medicine tube, the front end of the inner cavity is communicated with the outer cavity, and the outer cavity is communicated with the exhaust port.

The invention has the beneficial effects that: 1. according to the invention, the basic medicine tube is filled in the tail tube at the rear end of the projectile body, the gas generated after the firing of the basic medicine tube drives the simulated projectile to be ejected out of the muzzle, and the sound and light are emitted, so that the filling training quality of the mortar can be effectively improved, and the psychological training of a gun can be performed; 2. the invention adopts the step/machine gun empty-packing bullet as the basic medicine tube, the storage capacity of the step/machine gun empty-packing bullet army is large, the cost is low, and the use is safe and reliable; 3. aiming at the reality that the quantity of the step/machine gun blank ammunition is small, the generated gas is less and the driving force is insufficient, the invention designs two pneumatic structures aiming at the mortars with different calibers, one pneumatic structure is that the hollow driving piece is driven to move backwards in the first cavity through the expansion of the gas in the tail pipe, and the rear end of the driving piece is contacted with the firing pin base and can not move backwards, so that the projectile body is reversely pushed to move towards the muzzle, like a supporting ship, the driving piece is used for supporting the projectile body, a certain initial speed is provided for the projectile body, and finally, the projectile body is simulated to be ejected out of the muzzle, so that the pneumatic structure is suitable for the mortars with small caliber (60 mm) and the mortars with large caliber and medium caliber (82 mm, 100mm and 120 mm); the other is to directly discharge the gas into the bore, and the gas accumulated in the bore is expanded to directly push the simulated ejection muzzle, so that the structure is simple, but the method is only suitable for small-caliber mortar; 4. in the invention, due to the problem of powder proportioning of the empty bomb, a certain amount of residual powder is wrapped in the high-temperature and high-pressure gas generated after firing, and when the gas expands in the space between the front end of the hollow driving piece and the front end of the first cavity or in the process of a channel formed by communicating the inner cavity and the outer cavity, the residual powder is fully combusted, so that the generated gas is maximized; 5. the invention is provided with the constraining piece which is detachably connected at the filling end of the basic medicine tube, and the basic medicine tube is constrained at the filling end by the constraining piece, so that the primer shell is prevented from falling into the gun tube.

Drawings

FIG. 1 is a schematic view of a first construction of a simulated mortar shell;

FIG. 2 is a schematic view of the firing dynamics of the simulated mortar shell of FIG. 1;

FIG. 3 is a schematic view of the structure of the tail wing;

FIG. 4 is a schematic view of a second construction of a simulated mortar shell;

fig. 5 is a schematic diagram of the tail structure with the exhaust opening at the rear end of the tail pipe.

Reference numeral 1, fuze, 2, closed ring, 3, elastomer, 4, tail pipe, 5, hollow driving piece, 6, limiting piece, 7, reset piece, 8, exhaust port, 9, basic medicine pipe, 10, tail fin, 11, first constraint piece, 12, second constraint piece, 13, inner cavity, 14, third constraint piece, 15, outer cavity.

Detailed Description

The invention is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.

As shown in fig. 1, the mortar simulated bullet comprises a projectile body 3, a tail pipe 4 connected to the tail of the projectile body 3 and a tail fin 10 connected to the tail of the tail pipe 4, wherein a first cavity is formed in the tail pipe 4, the first cavity can be a cylindrical cavity, an exhaust port 8 communicated with the first cavity is formed in the tail pipe 4, a hollow driving piece 5 which can stretch from the rear end of the tail pipe is slidably connected in the first cavity, the side wall of the front end of the hollow driving piece 5 is attached to the inner wall of the first cavity, a basic medicine tube 9 is filled at the rear end of the inner cavity of the hollow driving piece 5, gas generated by firing of the basic medicine tube 9 expands a space between the front end of the hollow driving piece 5 and the front end of the first cavity to drive the hollow driving piece 5 to move relatively in the first cavity, and when the relative movement reaches a preset position, the gas is discharged from the exhaust port 8.

The mortar simulated projectile is filled with the basic medicine tube 9 at the rear end of the hollow driving piece 5, the simulated projectile is ejected out of a muzzle through the basic medicine tube 9, and sound and light are emitted, so that the mortar filling training can be effectively improved, and the psychological training can be carried out on a blaster; the pneumatic structure of the mortar simulated projectile expands in the tail pipe 4 through gas, so that the space between the front end of the hollow driving piece 5 and the front end of the first cavity is increased, and the hollow driving piece 5 is driven to relatively move in the first cavity, thereby generating a ship supporting effect and driving the simulated projectile to be ejected out of a muzzle. Is a general mortar simulated projectile.

As an embodiment of the invention, the mortar simulated projectile comprises a fuze 1, a projectile body 3, a tail pipe 4 and a tail fin 10 which are connected in sequence from front to back; the fuse 1 is a hard entity and can bear repeated impact with the ground, and the fuse 1 can be connected with the projectile body 3 through threads or can be manufactured into a whole with the projectile body 3; the projectile body 3 is provided with a circumferential air-tight ring 2, so that the thrust of air to the simulated projectile can be increased; the tail pipe 4 can be connected with the projectile body 3 in a threaded manner, and the tail fin 10 is connected with the rear end of the tail pipe 4.

In the mortar simulated bullet, the basic medicine tube 9 adopts a step/machine gun empty bullet, so that the storage capacity of a step/machine gun empty bullet army is large, the cost is low, and the use is safe and reliable; in order to match the empty step/machine gun packing bullet, the rear end of the inner cavity of the hollow driving piece 5 is matched with the empty step/machine gun packing bullet.

In the mortar simulation shell according to the embodiment of the invention, the first cavity and the hollow driving member 5 are integrally similar to a cylinder, after the hollow driving member 5 is fired, gas is sprayed forward along the cavity of the hollow driving member 5, because the front end side wall of the hollow driving member 5 is attached to the inner wall of the first cavity, high-pressure gas can expand in the space between the front end of the hollow driving member 5 and the front end of the first cavity, and because the rear end of the hollow driving member 5 is contacted with the needle base at the bottom of the mortar tube, the hollow driving member 5 cannot move backwards, so that the projectile body 3 moves forwards, a 'supporting ship' effect is generated, and finally the whole simulation shell is ejected out of a muzzle, thereby solving the problems of small dosage, less generated gas and insufficient thrust force of the hollow driving member 5. The action process is shown in figure 2.

Because of the propellant ratio problem of the step/machine gun blank ammunition, the gas generated after the blank ammunition is fired can carry certain residual gunpowder.

In addition, in order to enable the hollow driving member 5 to reset, so as not to affect the flight of the simulated projectile, so that the simulated projectile is more close to a live projectile, a reset member 7 may be sleeved on the hollow driving member 5, so that the hollow driving member 5 resets after relatively moving in the first cavity, and a reset spring in the figure may be specifically adopted.

In order to prevent the restoring spring from being wound and broken due to super-strong extrusion, a circle of limiting piece 6 can be fixed on the outer wall of the hollow driving piece 5, and in particular, a circle of protrusion in the figure can be formed, the hollow driving piece 5 moves relatively to a preset position in the first cavity, and the limiting piece 6 abuts against the rear end face of the tail pipe 4, so that the relative movement is stopped.

In order to match with the expansion of the hollow driving piece 5, the exhaust port 8 can be further arranged on the side wall of the tail pipe 4, the hollow driving piece 5 moves relatively to a preset position in the first cavity, the exhaust port 8 is communicated with the space between the front end of the hollow driving piece 5 and the front end of the first cavity, gas can be smoothly discharged into a gun barrel from the exhaust hole, and the accumulated gas in the gun barrel expands to generate certain thrust for the simulated projectile so as to further drive the simulated projectile.

The position of the limiting piece 6 is matched with the position of the exhaust port 8, the two are used for jointly determining the movement stroke between the tail pipe 4 and the hollow driving piece 5, the range of the simulated projectile is determined, the stroke is large, the range is far, and otherwise, the range is near, which is equivalent to the length of a ship pole of a ship support, and the distance of one-time support is related.

In order to constrain the hollow driving member 5, the rear end of the tail pipe 4 may adopt a closed structure, in which a through hole for entering and exiting the hollow driving member 5 is formed, and the hollow driving member 5 stretches out and draws back through the through hole, and here, a first constraint member 11 that is detachably connected is specifically adopted. For ease of machining and handling, the first restraint 11 and the tail 10 may be manufactured as one piece (see fig. 1 and 3).

In the mortar simulation shell, if a certain constraint is not carried out on the step/machine gun blank shell, the shell (namely the shell) after firing of the step/machine gun blank shell is often remained in the gun barrel, and if the shell needs to be disassembled and inverted for taking out, cleaning is very troublesome, so as to be one embodiment of the invention, a second constraint piece 12 can be detachably connected to the rear end of the hollow driving piece 5, specifically, a threaded connection can be adopted, the second constraint piece 12 is used for constraining the basic medicine tube 9 in the inner cavity of the hollow driving piece 5, the fired shell cannot be ejected, and a firing hole communicated with the inner cavity of the hollow driving piece 5 is formed in the second constraint piece 12 for facilitating firing.

The second restraining member 12 is a cap body which substantially blocks the rear end of the hollow driving member 5, like a bottle cap, and is screwed to the hollow driving member.

The mortar shell is initially moved relatively in the first cavity by the hollow driving member 5, which props the shell 3, giving the mortar shell an initial velocity, which is the main driving force. When the gas is discharged into the bore, a certain thrust force is added to the simulated shell of the mortar through the accumulation and expansion of the gas, the overall driving force is stronger, and the problems of small dosage, less generated gas and insufficient driving force caused by taking the empty shell of the step/machine gun as a basic medicine tube are solved, so that the method is suitable for small-caliber mortar and large-and medium-caliber mortar.

For small caliber mortar, because the shell weight is lighter (60 mm mortar shell weight is less than one third of 82mm mortar shell), only a smaller driving force is needed; the small-caliber mortar has small bore section area, the distance from the tail pipe rear end part to the gas-closing ring is short, and the same gas can generate larger thrust. Therefore, the simulated projectile of the small-caliber mortar can be simplified as shown in fig. 4, and comprises a projectile body 3, a tail pipe 4 arranged at the tail part of the projectile body 3 and a tail fin 10 arranged at the tail part of the tail pipe 4, wherein a second cavity is arranged in the tail pipe 4, an exhaust port 8 communicated with the second cavity is arranged on the tail pipe 4, the rear end of the second cavity is used for filling a basic medicine tube 9, and gas generated by firing the basic medicine tube 9 is discharged through the second cavity and the exhaust port 8 in sequence.

The simulated projectile is characterized in that the basic medicine tube 9 is filled at the rear end of the second cavity, and the gas generated by the firing of the basic medicine tube 9 drives the simulated projectile to be ejected out of a muzzle, and sound and light are emitted, so that the filling training quality of the mortar can be effectively improved, and the psychological training of a blaster can be performed; the gas driving structure is to directly discharge the gas into the bore, and the gas accumulated in the bore expands to push the simulated ejection muzzle. In order to further improve the driving force, as an embodiment, an exhaust port may be provided at the bottom of the tail pipe, and the reaction force generated by the injection of the high-speed gas from the rear end and the thrust force generated by the expansion of the gas in the bore act together to simulate the ejection of the gas out of the muzzle.

As an embodiment, the basic medicine tube 9 of the small-caliber mortar simulated bullet also adopts a step/machine gun blank bullet, and the bullet body 3 is provided with a circumferential closed ring 2 with the same effect; also, in order to prevent the shell (i.e., the shell) of the shot/machine gun after the firing from being detained in the gun barrel, a third restraint member 14 is detachably connected to the rear end of the second cavity, the third restraint member 14 is used for restraining the basic medicine tube 9 in the second cavity, and a firing hole communicated with the second cavity and used for passing through the firing pin is formed in the third restraint member 14.

The third restraint member 14 is essentially a cover that blocks the rear end of the chamber, and for ease of operation, the third restraint member 14 and the flight 10 are integrally formed, similar to FIG. 3, except that the diameter of the central opening is smaller. The third constraint 14 and the tail fin 10 are integrally constructed with respect to the structure in which the exhaust port is provided at the bottom of the tail pipe as shown in fig. 5.

The structure of fig. 4 can be simplified and adjusted based on fig. 1, specifically: the limiting piece 6 is removed, the resetting piece 7 is removed, the hollow driving piece 5 is changed into a tube body fixed in the cavity of the tail tube 4, and particularly the rear end of the hollow driving piece is fixed with the tail tube, so that the structure can divide the second cavity into an inner cavity 13 and an outer cavity 15, the rear end of the inner cavity 13 is used for filling the basic medicine tube 9, the front end of the inner cavity 13 is communicated with the outer cavity 15, and the outer cavity 15 is communicated with the exhaust port 8.

After the basic medicine tube 9 is fired, the gas moves forwards along the inner cavity 13, then moves to the outer cavity 15, finally is discharged into the bore from the exhaust port 8, and pushes the simulated ejection muzzle by the combined action of the expansion of the gas accumulated in the muzzle and the backward ejection of the high-speed gas.

Also, after the step/machine gun blank cartridge is fired, the gas can carry certain residual gunpowder, and the invention can temporarily hold the gas through the channels of the inner cavity 13 and the outer cavity 15, so that the residual gunpowder is fully combusted, the generated gas is maximized, and the driving force of the simulated cartridge is enhanced.

While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention, and in particular, the technical features set forth in the various embodiments may be combined in any manner so long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

In the description of the present invention, terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, which indicate a direction or a positional relationship, are based on the direction or the positional relationship shown in the drawings, are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.

The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus/means that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus/means.

Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will fall within the scope of the present invention.

Claims (10)

1. A simulated mortar shell comprises a shell body, a tail pipe arranged at the tail part of the shell body and a tail fin arranged at the tail part of the tail pipe, and is characterized in that a first cavity is arranged in the tail pipe, an exhaust port communicated with the first cavity is arranged on the tail pipe, a hollow driving piece which can stretch out and draw back from the rear end of the tail pipe is slidably connected in the first cavity, a basic medicine tube is filled at the rear end of an inner cavity of the hollow driving piece, gas generated after the basic medicine tube is fired expands a space between the front end of the hollow driving piece and the front end of the first cavity, the hollow driving piece is driven to do relative motion in the first cavity, and when the relative motion is to a preset position, the gas is exhausted from the exhaust port.

2. A mortar simulated projectile in accordance with claim 1, wherein the primary liner is a rifle or machine gun blank projectile.

3. A mortar shell according to claim 1, wherein the rear end of the hollow driver is detachably connected to a second restraining member for restraining the primary tube in the cavity of the hollow driver, the second restraining member having a firing bore communicating with the cavity of the hollow driver for passing through the firing pin.

4. A mortar shell according to claim 1, wherein the hollow driver is provided with a return member for returning the hollow driver after relative movement within the first cavity.

5. A mortar shell according to claim 1, wherein the air outlet is provided in the sidewall of the tail pipe, the hollow driving member being relatively movable in the first cavity to a predetermined position, the air outlet communicating with a space between the front end of the hollow driving member and the front end of the first cavity.

6. A mortar shell according to claim 1, wherein the outer wall of the hollow driving member is provided with a stop member, the hollow driving member being relatively movable in the first cavity to a predetermined position, the stop member being arranged against the first constraint member.

7. The simulated mortar shell comprises a shell body, a tail pipe arranged at the tail part of the shell body and a tail fin arranged at the tail part of the tail pipe, and is characterized in that a second cavity is arranged in the tail pipe, an exhaust port communicated with the second cavity is arranged on the tail pipe, the rear end of the second cavity is used for filling a basic medicine tube, and gas generated by firing the basic medicine tube is sequentially discharged through the second cavity and the exhaust port.

8. A mortar simulated projectile in accordance with claim 8, wherein the primary liner is a rifle or machine gun blank projectile.

9. A mortar shell according to claim 8, wherein a third restraint member is removably attached to the rear end of the second cavity, the third restraint member being adapted to restrain the primary tube within the second cavity, the third restraint member having a firing aperture in communication with the second cavity for passage of a firing pin.

10. A mortar shell according to claim 7 or 9, wherein the second cavity comprises an inner cavity and an outer cavity, the rear end of the inner cavity being adapted to be filled with a basic cartridge, the front end of the inner cavity being in communication with the outer cavity, the outer cavity being in communication with the exhaust port.

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