CN210813625U

CN210813625U - Fire control shell bullet chain and fire gun

Info

Publication number: CN210813625U
Application number: CN201921679225.9U
Authority: CN
Inventors: 刘继文; 孙万; 霍亚东; 徐祖国; 邢立业
Original assignee: Beijing Zhonghangzhi Technology Co ltd
Current assignee: Beijing Zhonghangzhi Technology Co ltd
Priority date: 2019-10-09
Filing date: 2019-10-09
Publication date: 2020-06-23
Anticipated expiration: 2029-10-09

Abstract

The utility model relates to a fire control technical field especially relates to a fire control shell bullet chain and fire gun, and wherein, the fire control shell bullet chain includes: the device comprises a cartridge case, a driving device, at least one pair of chain supporting devices and at least one pair of annular chains; the chain supporting devices are fixed on the fire monitor body, one chain supporting device is close to the gun barrel of the fire monitor body, and the other chain supporting device is far away from the gun barrel of the fire monitor body; the annular chains are respectively meshed with the guide wheels of the two chain supporting devices and move along the direction vertical to the gun barrel; the two ends of the cartridge case are respectively fixed at the outer sides of the two annular chains, and the extending direction of the cartridge case is the same as that of the gun barrel; the drive means is for driving the endless chain into movement to move the shells into alignment with the barrel. Because the fire control shell bullet chain of this application can cyclic motion to can carry the fire control shell of needs to the bore in, and then realized the purpose of self-defined selection bullet as required.

Description

Fire control shell bullet chain and fire gun

Technical Field

The application relates to the technical field of fire control, especially, relate to a fire control shell bullet chain and fire gun.

Background

The bullet chain is a bullet supply tool which is applied to the military field and connects a large number of bullets in a series connection mode, is mainly provided for firearm parts which supply bullets to a full-automatic quick-fire weapon to achieve the effect of continuous firepower, and can be divided into a dispersible bullet chain, a semi-dispersible bullet chain and an undispersable bullet chain.

Specifically, the military chain directly clamps the cartridge case of the bullet, the bullet loading re-entry push rod directly sends the whole bullet (warhead and cartridge case) into the cartridge chamber to complete locking, and after the warhead of the bullet is ejected, the previously clamped bullet cartridge case is ejected by the ejection mechanism. If the bullet chain for clamping the bullet is an inseparable bullet chain, the bullet chain is an empty chain at the moment; if the bullet chain for clamping the bullet is a loose type bullet chain, the chain can be scattered into metal sheets; if the bullet chain holding the bullet is a semi-detachable bullet chain, the chain is broken in a group.

In the field of fire fighting, there are different kinds of fire fighting projectiles, such as: fire-fighting water bombs, dry powder fire-extinguishing bombs, foam fire-extinguishing bombs, blasting bombs and the like. When fire extinguishing and rescuing, a fireman can launch different shells to a fire scene according to different requirements. Because the effect of military ammunition chain is the firepower effect that keeps lasting, consequently military ammunition chain can only one-way use and guarantee that the bullet shoots in order, and the non-circulation selects bullet, can not self-defined selection bullet, and the kind of fire control shell is more, need select as required during the use, consequently is used for the fire control field with military ammunition chain, also is difficult to realize selecting the bullet as required.

In addition, the military chain is only a bullet holding device because the military bullet is launched by the power generated by the gunpowder in the shell to launch the bullet head. The fire-fighting shell is different from a military bullet, and the fire-fighting shell does not have power for launching, so that if a military bullet chain is used for launching the fire-fighting shell, the fire-fighting shell cannot enter a launching barrel from the bullet chain, and the fire-fighting shell is difficult to launch.

Therefore, how to select the fire-fighting cannonball to launch according to the requirement is a technical problem which needs to be solved urgently by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The application provides a fire control shell bullet chain and fire gun to the realization is selected the fire control shell as required and is carried out the purpose of transmission.

In order to solve the technical problem, the application provides the following technical scheme:

a fire fighting cannonball chain, comprising: the device comprises a cartridge case, a driving device, at least one pair of chain supporting devices and at least one pair of annular chains; the chain supporting devices are fixed on the fire monitor body, one chain supporting device is close to the gun barrel of the fire monitor body, and the other chain supporting device is far away from the gun barrel of the fire monitor body; the annular chains are respectively meshed with the guide wheels of the two chain supporting devices and move along the direction vertical to the gun barrel; the two ends of the cartridge case are respectively fixed at the outer sides of the two annular chains, and the extending direction of the cartridge case is the same as that of the gun barrel; the drive means is for driving the endless chain into movement to move the shells into alignment with the barrel.

The fire fighting cannon chain as described above, wherein it is preferable that the fire fighting cannon body comprises: the breech block of the breechblock is fixed on one side of the bottom plate and extends upwards, and the breech block of the projectile pusher is fixed on the other side of the bottom plate and extends upwards; the chain support device includes: the guide wheel supporting plate, the guide wheel fixed on the inner side of the guide wheel supporting plate and the drive axle supporting block used for supporting the drive axle of the driving device are arranged on the guide wheel supporting plate; the upper edge of the latch seat and the upper edge of the tailstock are both fixed with drive axle supporting blocks; the idler support plate is secured to the outboard side of the drive axle support block and extends outwardly therefrom.

The fire fighting cannonball chain as described above, wherein, preferably, the shell comprises: the easy piece is placed the shell body of fire control shell with inside, and breakable piece shutoff is in the both ends of shell body.

The fire fighting cannonball chain as described above, wherein, preferably, the ear plate is fixed on the inner side of the endless chain, and the ear plate extends to the direction of the other opposite endless chain; the outer wall of the cartridge case is provided with fixing devices at positions close to the two ends; the lug plates are matched with the fixing device so as to fix the two ends of the cartridge case at the outer sides of the two annular chains respectively.

The fire fighting cannonball chain as described above, wherein, preferably, the ear plate has a through hole therethrough, the fixing device has a threaded hole, and the bolt is screwed into the threaded hole of the fixing device through the through hole of the ear plate.

The fire fighting cannonball chain as described above, wherein preferably, the driving means comprises: one end of the drive axle is inserted into a support hole formed in a drive axle support block of one chain support device, and the other end of the drive axle penetrates through a support hole formed in a drive axle support block of the other chain support device and then is connected with the motor to drive the annular chain to move.

The fire fighting cannonball chain as described above, wherein preferably two sprockets are provided on the drive axle, the two sprockets being located adjacent to the two chain supports, respectively, and engaging with the two endless chains, respectively.

The firefighter shell chain as set forth above, wherein preferably guide wheels are fixed to the tail block and the latch base, respectively, the guide wheels being located at a lower side of the endless chain and engaging with the lower side of the endless chain.

The fire fighting cannonball chain as described above, preferably, further comprises an ejector, and the ejector further comprises: push away diving board, cylinder and cylinder support, the tailstock of bullet ware has and pushes away the bullet hole, pushes away the diving board and is located the inboard that pushes away the bullet hole, and the outer wall of cylinder is fixed in the tailstock outer wall through cylinder support, and the piston rod of cylinder passes and pushes away the bullet hole and push away the diving board fixed to it moves towards the shell case to promote to push away the diving board through the cylinder.

The utility model provides a fire monitor, includes fire monitor body and above-mentioned arbitrary fire control shell chain of bullet, wherein, the fire monitor body includes the support and is fixed in on the support and the barrel of outside extension, is formed with the bullet district that goes up of fire monitor on the support, and fire control shell chain of bullet is fixed in and plays the district to the one end of the shell case of fire control shell chain of bullet is towards the barrel, and the other end orientation pushes away the shell plate that pushes away of bullet ware.

Compared with the background technology, the fire-fighting shell chain and the fire-fighting gun provided by the utility model can convey the required fire-fighting shell into the bore because the fire-fighting shell chain can move circularly, thereby realizing the self-defined shell selection according to the requirement; and the fire-fighting cannonball chain is provided with an external shell pusher, so that the fire-fighting cannonball can be pushed into the bore of the barrel from the shell case through the shell pusher even if the fire-fighting cannonball does not have a power device, and the fire-fighting cannonball can be launched.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

FIG. 1 is a schematic structural diagram of a shell and an endless chain of a chain for a firefighting projectile according to an embodiment of the present invention;

FIG. 2 is a first schematic structural diagram of a chain support device, an annular chain and a driving device of a fire fighting cannon body and a fire fighting cannon shell chain according to an embodiment of the application;

FIG. 3 is a second schematic structural diagram of the chain support device, the endless chain, and the driving device of the fire monitor body and the fire monitor shell chain according to the embodiment of the present application; FIG. 4 is a first schematic structural view of a chain support device and a driving device of a fire fighting cannonball chain according to an embodiment of the present application;

FIG. 5 is a second schematic structural view of a chain supporting device and a driving device of a fire fighting cannonball chain according to an embodiment of the present application;

FIG. 6 is an enlarged view of portion A of FIG. 4;

FIG. 7 is an enlarged view of portion B of FIG. 5;

FIG. 8 is a schematic structural view of an endless chain of a chain for a fire fighting projectile in accordance with an embodiment of the present application;

FIG. 9 is a schematic structural diagram of a shell of a fire fighting cannonball chain according to an embodiment of the present application;

FIG. 10 is a schematic structural view of a driving apparatus of a fire fighting projectile ammunition chain according to an embodiment of the present application;

FIG. 11 is a first schematic structural view of a projectile pusher for a chain of fire fighting projectiles according to an embodiment of the present application;

fig. 12 is a second structural schematic diagram of a projectile pusher of a fire fighting projectile chain according to an embodiment of the present application.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1, 2 and 3, the present application provides a fire fighting cannonball chain, comprising: the cartridge case 110, the driving device 120, the chain supporting device 131, the chain supporting device 132, the endless chain 141, and the endless chain 142. In the figure 2, double-barrel shooting is performed by using two annular chains, in the figure 3, single-barrel shooting is performed by using two annular chains, and in the same way, in the case of multi-barrel shooting, in order to ensure that each barrel can shoot independently, two annular chains are used for each barrel or a plurality of barrels, and two annular chains can be used for one or more of the rest barrels, and the like, so that each fire-fighting cannonball chain at least comprises a pair of annular chains, and a chain supporting device and a driving device which are matched with the annular chains.

Wherein the chain support devices 131 and the chain support devices 132 are fixed on the fire monitor body, one of the chain support devices 131 is close to the barrel 210 of the fire monitor body, and the other chain support device 132 is far away from the barrel 210 of the fire monitor body, so that a fire monitor charging area is formed between the chain support device 131 and the chain support device 132.

The fire monitor body includes a bracket 220 and a barrel 210 fixed on the bracket 220 and extending outwards. Specifically, the cradle 220 includes a base plate 221, a tailstock 223 of the projectile pusher, and a latch base 222 for holding a breechblock of the barrel 210 in front; a bolt seat 222 of the breechblock is fixed on one side of the bottom plate 221 and extends upwards, the bolt seat 222 is used for installing other components of the breechblock, a specific bolt seat 222 is provided with a loading opening communicated with the breechblock 210, and a bolt plate is in sliding connection with the bolt seat 222 from the vertical direction so as to close or open the loading opening, so that the breechblock can be opened and closed to a breech of the breechblock 210; a tail block 223 of the ejector is fixed to the other side of the base plate 221 and extends upward, and the tail block 223 of the ejector is used to mount other components of the ejector so that the ejector can push the fire-fighting shell on the bullet chain in the loading area into the bore of the barrel 210 through the loading opening of the latch base 222. Specifically, the chain support device 131 is fixed to the upper edge of the latch base 222 of the fire monitor body, and the chain support device 132 is fixed to the upper edge of the tail base 223.

In addition, the structure of the chain supporting device 131 will be described as an example. Specifically, referring to fig. 2-7, chain support device 131 includes a drive axle support block 1311, a guide pulley support plate 1312, and a guide pulley 1313. A drive axle support block 1311 is fixed to an upper edge of the latch base 222 for supporting a drive axle of the driving apparatus. Specifically, referring to fig. 6 and 7, drive axle support block 1311 has a support bore 13111, and support bore 13111 opens toward chain support 132. The idler support plate 1312 is fixed with the drive axle support block 1311, and the idler support plate 1312 extends outward, i.e., away from the fire monitor body. Preferably, idler support plate 1312 is tongue and groove connected to drive axle support block 1311 and bolted thereto. When two barrels are used for firing, please refer to fig. 2, 4 and 6, two drive axle support blocks 1311 and two idler support plates 1312 are provided, and the two drive axle support blocks 1311 are fixed to the upper edge of the latch base 222, and one idler support plate 1312 is fixed to the outer side of each drive axle support block 1311, that is, the direction in which the drive axle support block 1311 is away from the fire monitor body, and each idler support plate 1312 extends outward. When a barrel is used for shooting, please refer to fig. 3, 5 and 7, a drive axle support block 1311 and two wheel support plates 1312 are provided, the drive axle support block 1311 is fixed on the upper edge of the latch base 222, and the outer sides of the drive axle support block 1311, namely, the two sides of the drive axle support block 1311 away from the fire monitor body, are fixed with one wheel support plate 1312 on each side, and each wheel support plate 1312 extends outwards. The inner side of the guide pulley supporting plate 1312, that is, the side opposite to the chain supporting device 132, arranges the guide pulley 1313 to support and guide the movement locus of the endless chain by the guide pulley.

Accordingly, the chain supporting device 132 provided on the tailstock 223 has the same structure as the chain supporting device 131 provided on the latch base 222, but the chain supporting device 132 provided on the tailstock 223 is disposed opposite to the chain supporting device 131 provided on the latch base 222, and the guide pulley on the chain supporting device 132 is disposed opposite to the guide pulley on the chain supporting device 131.

Referring to fig. 1 and 8, the

endless chains

141 and 142 are each formed by a closed chain, preferably a lug roller conveyor, with a pitch of 12.7 m. The endless chain 141 is engaged with the guide pulley of the chain supporting means 131, the endless chain 142 is engaged with the guide pulley of the chain supporting means 132, and both the endless chain 141 and the endless chain 142 rotate in a direction perpendicular to the gun barrel 210.

Referring to fig. 1 and 9, the cartridge case 110 includes: the cartridge case body 111 and the easy piece 112, the cartridge case body 111 is the tubbiness structure, can be made by materials such as metal, rigid plastic, glass steel, the fire control shell is placed in the inside of cartridge case body 111, and fragile piece 112 shutoff is in the both ends of cartridge case body 111, and fragile piece 112 is comparatively fragile materials such as thin plastics, cystosepiment, paper. One end of the hull 110 is fixed to the outside of the endless chain 141, the other end of the hull 110 is fixed to the outside of the endless chain 142, and the extending direction of the hull 110 is the same as that of the barrel 210.

Specifically, referring to fig. 8, the ear plates are fixed to the

endless chains

141 and 142, and taking the endless chain 141 as an example, the ear plates 1411 are fixed to the inner sides of the endless chains 141, and the ear plates 1411 extend in the direction of the endless chains 142. Referring to fig. 9, the outer wall of the casing 110, that is, the outer wall of the casing body 111, has fixing devices 113 at positions close to the two ends, and the fixing devices 113 at the two ends of the casing 110 are fixed to the ear plates of the endless chain 141 and the endless chain 142, so as to fix the two ends of the casing 110 to the outer sides of the two endless chains, respectively. Specifically, the lug plate has a through hole, the fixing device 113 has a threaded hole, and a bolt is screwed into the threaded hole of the fixing device 113 through the through hole of the lug plate to fix the cartridge case 110 to the endless chain.

Referring to fig. 2-5, the drive mechanism 120 is used to drive the movement of the

endless chains

141 and 142 to move the shells 110 into alignment with the barrel 210, i.e., to align the center line of the shells 110 with the center line of the barrel 210. Specifically, referring to fig. 10, the driving device 120 includes: motor 121, transaxle 123. One end of the drive axle 123 is inserted into a support hole formed in a drive axle support block of the chain support device 131, and the other end of the drive axle 123 passes through a support hole formed in a drive axle support block of the chain support device 132 and then is connected to the motor. Still be provided with two sprockets on the transaxle 123, these two sprockets are close to two chain strutting arrangement respectively to two sprockets on the transaxle 123 mesh with two endless chains respectively, thereby drive transaxle 123 through the motor and rotate, through the meshing of sprocket and endless chain, drive endless chain motion, and then drive the shell case motion that is fixed in on the endless chain. In order to ensure the rotation speed of the endless chain, a reduction box 122 is further disposed between the drive axle 123 and the motor 121 in the present application to reduce the rotation speed of the output shaft of the motor 121 to the rotation speed required by the drive axle 123.

In addition, the number of turns and the angle of the rotation of the motor can be controlled by the control unit to control which shell on the bullet chain stays behind the bore of the gun barrel, and the actual number of turns and the actual angle of the rotation of the motor are detected by the rotary transformer to complete the closed-loop control of the circular motion of the bullet chain.

To further support the endless chain, guide rollers are fixed to the tail block and the latch block, respectively, and are positioned at a lower side of the endless chain and engaged therewith to upwardly support the lower side of the endless chain.

In order to push the fire fighting shell located in the shell 110 into the bore of the barrel 210, the application provides that the chain of fire fighting shells further comprises a pusher 150, to which further components of the pusher 150 are mounted on a tailstock 223 of the pusher 150, see fig. 2, 3, 11 and 12. Specifically, the ejector 150 further includes: push away diving board 151, cylinder 152 and cylinder support 153, the tailstock 223 of bullet ejector has and pushes away the bullet hole, and bullet ejector pushes away diving board 151 and is located the inboard of pushing away the bullet hole, and it is in the bullet district that just pushes away diving board 151, and the outer wall of cylinder 152 passes through cylinder support 153 fixed with tailstock 223 outer wall, and the piston rod of cylinder 152 passes and pushes away the bullet hole and fixes with bullet board 151 to it moves towards shell 110 to push away diving board 151 through cylinder 152, pushes the fire control shell in the shell into the bore of barrel from the shell.

The projectile pushing plate 151 is a circular plate, the projectile pushing plate 151 is used for pushing a fire-fighting projectile into a barrel, the center of the circular plate is inwards recessed, the recessed portion in the center of the circular plate is beneficial to wrapping the tail of the fire-fighting projectile, the situation that the projectile deviates from the central line direction in the process of pushing the projectile is prevented, the projectile is also prevented from deviating from the projectile inlet hole of the latch seat 222 and the central line direction of the barrel, and therefore the fire-fighting projectile smoothly enters the barrel, and the mounting efficiency and the mounting reliability of the projectile are improved.

The application also provides a fire monitor, including fire monitor body and foretell fire control shell chain of ammunition feed, the fire monitor body includes the support and is fixed in on the support and the barrel of outside extension, is formed with the bullet district that goes up of fire monitor on the support, and the fire control shell chain of ammunition feed is fixed in to the bullet district to the one end of the shell case of fire control shell chain of ammunition feed is towards the barrel, and the other end orientation and the shell pusher's that pushes away bullet board. And moving the fire-fighting cannonball chain as required, and pushing the fire-fighting cannonball to be launched into the cannon barrel from the shell to launch.

Use during fire control shell chain and fire gun of this application, operation drive arrangement, thereby drive the motion of annular chain, thereby the shell case that will be equipped with the fire control shell of needs moves to the barrel bore dead astern, the breechblock bolt board is opened, the projectile pusher at first pushes up the breakable piece at garrulous shell case rear, then continue to push forward the fire control shell behind the contact fire control shell, the fire control shell can be under the effect of projectile pusher with the easy piece in shell case the place ahead broken piece, continue to move forward behind the breakable piece in the barrel bore that enters into the barrel of fire control shell ejection, after the fire control shell moves the assigned position, the piston rod withdrawal normal position of the cylinder of projectile pusher, bolt board descends and seals the barrel bore, carry out the transmission of fire control shell. The application's shell case of bullet chain only is the container of fire control shell, installs all the time on the bullet chain, can not reduce along with the reduction of fire control shell to the bullet chain is all installed all the time on bullet chain strutting arrangement and drive arrangement, and the bullet chain itself can not scatter the piece, also can not become a set of absolutely yet.

The beneficial effect that this application realized is as follows:

(1) because the fire control shell bullet chain of this application can cyclic motion to can carry the fire control shell of needs to the bore in, thereby realized selecting the bullet by oneself as required.

(2) Because the fire control shell bullet chain of this application has outside bullet pusher to even the fire control shell does not have power device, also can realize the transmission of fire control shell in pushing into the bore of barrel from the shell case with the fire control shell through bullet pusher.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A fire-fighting cannonball chain, comprising: the device comprises a cartridge case, a driving device, at least one pair of chain supporting devices and at least one pair of annular chains;

the chain supporting devices are fixed on the fire monitor body, one chain supporting device is close to the gun barrel of the fire monitor body, and the other chain supporting device is far away from the gun barrel of the fire monitor body;

the annular chains are respectively meshed with the guide wheels of the two chain supporting devices and move along the direction vertical to the gun barrel;

the two ends of the cartridge case are respectively fixed at the outer sides of the two annular chains, and the extending direction of the cartridge case is the same as that of the gun barrel;

the drive means is for driving the endless chain into movement to move the shells into alignment with the barrel.

2. The fire fighting cannonball chain of claim 1, wherein the fire fighting cannon body comprises: the breech block of the breechblock is fixed on one side of the bottom plate and extends upwards, and the breech block of the projectile pusher is fixed on the other side of the bottom plate and extends upwards;

the chain support device includes: the guide wheel supporting plate, the guide wheel fixed on the inner side of the guide wheel supporting plate and the drive axle supporting block used for supporting the drive axle of the driving device are arranged on the guide wheel supporting plate; the upper edge of the latch seat and the upper edge of the tailstock are both fixed with drive axle supporting blocks; the idler support plate is secured to the outboard side of the drive axle support block and extends outwardly therefrom.

3. A fire fighting projectile chain as claimed in claim 1 or 2, wherein the cartridge case comprises: the easy piece is placed the shell body of fire control shell with inside, and breakable piece shutoff is in the both ends of shell body.

4. A fire fighting projectile ammunition chain as claimed in claim 1 or 2, wherein an ear plate is secured to the inside of the endless chain and extends in the direction of the opposite endless chain; the outer wall of the cartridge case is provided with fixing devices at positions close to the two ends; the lug plates are matched with the fixing device so as to fix the two ends of the cartridge case at the outer sides of the two annular chains respectively.

5. A fire fighting cannonball chain as defined in claim 4, wherein the ear plate has a through hole therethrough, the fastening device has a threaded hole, and a bolt is threaded through the through hole of the ear plate and into the threaded hole of the fastening device.

6. A fire fighting projectile ammunition chain as claimed in claim 2, wherein the drive means comprises: the chain driving device comprises a motor and a driving axle, wherein one end of the driving axle is inserted into a supporting hole formed in a driving axle supporting block of one chain supporting device, and the other end of the driving axle penetrates through a supporting hole formed in a driving axle supporting block of the other chain supporting device and then is connected with the motor to drive the annular chain to move.

7. A fire fighting cannonball chain as defined in claim 6, wherein the drive axle is provided with two sprockets, one adjacent each of the two chain support means and engaging each of the two endless chains.

8. A fire fighting cannonball chain as defined in claim 2, wherein guide wheels are fixed to the tail block and the latch base, respectively, and are located on the lower side of the endless chain and engage with the lower side of the endless chain.

9. The fire fighting cannonball chain of claim 2, further comprising a projectile pusher, the projectile pusher further comprising: push away diving board, cylinder and cylinder support, the tailstock of bullet ware has and pushes away the bullet hole, pushes away the diving board and is located the inboard that pushes away the bullet hole, and the outer wall of cylinder is fixed in the tailstock outer wall through cylinder support, and the piston rod of cylinder passes and pushes away the bullet hole and push away the diving board fixed to it moves towards the shell case to promote to push away the diving board through the cylinder.

10. A fire fighting cannon, characterized in that it comprises a fire fighting cannon body and a chain of fire fighting cannonballs as defined in any of the preceding claims 1 to 9, the fire fighting cannon body comprising a support and a barrel fixed to the support and extending outwardly, the support being formed with a loading area of the fire fighting cannon, the chain of fire fighting cannonballs being fixed to the loading area, and the shell of the chain of fire fighting cannonballs having one end facing the barrel and the other end facing a pusher plate of a pusher.