CN117053624A - Dual-chamber device for controlling area of fire transmission channel and air conduction - Google Patents
Dual-chamber device for controlling area of fire transmission channel and air conduction Download PDFInfo
- Publication number
- CN117053624A CN117053624A CN202310992609.0A CN202310992609A CN117053624A CN 117053624 A CN117053624 A CN 117053624A CN 202310992609 A CN202310992609 A CN 202310992609A CN 117053624 A CN117053624 A CN 117053624A
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- Prior art keywords
- chamber
- air guide
- channel
- movable block
- gas
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 24
- 239000003721 gunpowder Substances 0.000 claims abstract description 57
- 238000005507 spraying Methods 0.000 claims abstract description 25
- 239000007921 spray Substances 0.000 claims abstract description 23
- 239000007789 gas Substances 0.000 claims description 69
- 230000009977 dual effect Effects 0.000 claims description 8
- 239000013013 elastic material Substances 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 8
- 239000008188 pellet Substances 0.000 claims description 6
- 239000002737 fuel gas Substances 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 238000010304 firing Methods 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
- F41A21/32—Muzzle attachments or glands
- F41A21/36—Muzzle attachments or glands for recoil reduction ; Stabilisators; Compensators, e.g. for muzzle climb prevention
- F41A21/38—Muzzle attachments or glands for recoil reduction ; Stabilisators; Compensators, e.g. for muzzle climb prevention adjustable, i.e. the vent holes or the vent area being adjustable
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
- F41A21/32—Muzzle attachments or glands
- F41A21/36—Muzzle attachments or glands for recoil reduction ; Stabilisators; Compensators, e.g. for muzzle climb prevention
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Nozzles (AREA)
Abstract
The invention relates to the technical field of recoil reduction, in particular to a dual-chamber device for controlling the area of a fire transmission channel and air conduction. Comprises a barrel, a movable double-chamber and a post-spraying module. According to the invention, through controlling unlocking of the movable block in the channel between the two chambers by introducing gunpowder gas at the front part of the barrel, the area of the fire transmission channel is increased at a proper time, the effect of 'small before small after small' is generated, a small amount of gunpowder gas at the front stage flows into the rear chamber from the rear chamber, a large amount of gunpowder gas at the rear stage flows into the rear chamber from the front chamber, and the total quality of the gunpowder gas sprayed from the side to the rear spraying channel is improved; meanwhile, a section of channel with smaller sectional area is arranged in the rear spray pipe, so that the flow of the rear spray gas is controlled to prolong the total rear spray time, and finally, the purposes of improving the total impulse of the rear spray gas and greatly reducing the recoil are achieved. The invention can solve the problems that the area of a fire transmission channel is not changeable and the recoil force can not be reduced by fully utilizing the energy of gunpowder and gas in a front chamber in the existing double-chamber low-recoil launching method.
Description
Technical Field
The invention relates to the technical field of solid gunpowder emission and back-sitting reduction, in particular to an area air-guide control double-chamber device of a fire transmission channel.
Background
In the conventional barrel weapon firing process, the explosive gas will produce a significant recoil impulse and recoil while pushing the projectile into motion. The excessive recoil can lead to the failure of the shoulder-mounted firing of the high-power infantry carrying weapon, and also can lead to the severe jump or vibration of the vehicle and the helicopter carrying the small-caliber cannon, which can seriously restrict the loading of the high-power conventional weapon on advanced vehicles such as airplanes, ships, light wheeled vehicles and the like while influencing the firing precision. Thus, the problem of reduced recoil in barrel weapons directly affects the performance of conventional weapons, and is a key bottleneck technique for coordinating the contradiction between firearm power and maneuverability.
The dual-chamber emission structure is a newer squatting structure, and directly utilizes the gunpowder and gas energy in the rear chamber to carry out the post-spraying, thereby achieving the purpose of greatly reducing the squatting force. However, in the existing dual-chamber launching method, in order to prevent excessive powder gas in the rear chamber from flowing into the front chamber in the early stage of launching, the area of a fire transmission channel is generally small and unchangeable, which leads to that the powder gas in the front chamber cannot flow into the rear chamber in time due to the small area of the fire transmission channel in the later stage of launching, so that a large amount of powder gas in the front chamber is wasted along with the flow of the projectile out of the chamber, the energy of the powder gas in the rear chamber cannot be fully utilized to reduce the recoil impulse, and the energy utilization efficiency of the powder gas is low. Meanwhile, in order to inhibit the maximum pressure in the rear cavity, the sectional area of the rear spraying channel is generally larger and unchanged, so that the gunpowder gas in the rear cavity can be led in time to stabilize the maximum pressure peak value of the gunpowder gas, but the high-pressure gas is also led to have shorter rear spraying duration, and the total impulse of the rear spraying gas is not improved.
Disclosure of Invention
The invention aims to provide a low squatting launching technology with a controllable fire transfer channel and a small channel area, so as to realize a gas transfer channel area gas-guiding control double-chamber device with high gunpowder gas energy utilization rate, large total impulse of a post-jet body and continuous shooting.
The technical solution for realizing the purpose of the invention is as follows:
the dual-chamber device comprises a barrel, a movable dual-chamber and a back spraying module, wherein the movable dual-chamber is arranged in the barrel,
the movable double-chamber comprises a front chamber and a rear chamber, and the rear chamber is sleeved and fixed at the rear part of the front chamber;
a movable block is arranged in the front cavity and used for controlling the area of the fire transmission channel; a partition board is arranged in the rear cavity and used for blocking an initial fire transmission hole of the movable block and an air guide channel of the rear spraying module;
an initial fire transfer hole is formed in the movable block and is used as a fire transfer channel for enabling the gas of the front and rear chambers to flow into the front chamber; when the pressure of the gas in the front cavity is increased to a certain value, the movable block is separated from the front cavity so as to increase the area of the fire transmission channel;
the movable double-chamber also comprises a pellet, the pellet is arranged in the front chamber, and both the front chamber and the rear chamber are filled with solid gunpowder;
the rear spraying module is arranged on the barrel and comprises a connecting block, a piston, a reset spring and a rear spraying pipe; an air guide channel is formed in the connecting block and is communicated with the inside of the rear cavity; the rear spray pipe is inserted into the connecting block and used for guiding out high-pressure gas in the rear cavity and spraying the high-pressure gas backwards from the side of the barrel; the piston is arranged between the air guide channel and the rear spray pipe and can slide along the air guide channel, and is used for controlling the opening and closing of the rear spray pipe;
the reset spring is arranged between the piston and the connecting block, when the pressure of the air guide channel is increased to a certain value, the piston slides, so that the rear spray pipe is communicated with the air guide channel, and gunpowder gas is sprayed out backwards.
Compared with the prior art, the invention has the remarkable advantages that:
(1) The invention can realize the accurate control of the area of the fire transmission channel: the high-pressure gas is led in from the proper position in front of the barrel to push the clamping shaft to move as an unlocking mode of the movable block, so that a fire transmission channel is changed at proper time, the channel area generates the effect of 'small before big after big', a small amount of gunpowder gas in the early stage flows into the rear chamber from the rear chamber, a large amount of gunpowder gas in the later stage flows into the rear chamber from the front chamber, the total quality of the gunpowder gas sprayed from the lateral rear spraying channel is improved, and the energy utilization rate of the gunpowder gas is improved.
(2) According to the invention, the areas of two sides of the conical movable block are different, and when a certain pressure difference is generated between the front cavity and the rear cavity, the conical movable block is pushed into the rear cavity to increase the area of the fire transfer hole channel. The design realizes a simple and convenient structure of 'small before big' of the area of the fire transmission channel, and has the defect of difficult accurate control.
(3) The three-section design is carried out on the rear spray pipe channel, when gas flows into the second channel, the cross section area of the pipeline is reduced to prolong the rear spray time, and finally the spray is further accelerated through the expansion nozzle, so that the total impulse when gunpowder gas is sprayed backward is greatly improved, and the aim of greatly reducing the recoil and realizing micro-recoil emission is achieved.
Drawings
Fig. 1 is a schematic diagram of the overall system structure of a dual chamber device for controlling the area of a fire passage and air conduction according to embodiment 1 of the present invention.
Fig. 2 is a detailed structural diagram of the initial state of the system of the air-guide control dual-chamber device with fire passage area according to embodiment 1 of the present invention.
Fig. 3 is a detailed schematic diagram of the structure of the back spray channel of the dual chamber device for controlling the area of the fire transfer channel and air guide in embodiment 1 of the present invention.
Fig. 4 is a schematic sectional detailed structure of the front chamber of the air conduction control dual chamber device of the fire transfer passage area of embodiment 1 of the present invention.
Fig. 5 is a schematic cross-sectional three-dimensional detailed structure of a front chamber of the fire transfer passage area air guide control dual chamber device of embodiment 1 of the present invention.
Fig. 6 is a schematic cross-sectional three-dimensional detailed structure of a movable block of a dual-chamber device for controlling air conduction through a fire passage area according to embodiment 1 of the present invention.
Fig. 7 is a detailed schematic of the structure of a simple dual chamber of the dual chamber device of the present invention with the area of the flame propagation channel and the air conduction control.
Fig. 8 is a schematic sectional detailed structure of a simple front chamber of a system for controlling a dual-chamber device by air conduction through a fire passage area according to embodiment 1 of the present invention.
Fig. 9 is a simulated comparison of the fire transfer passage area air conduction control dual chamber device of example 1 of the present invention with the recoil of a conventional weapon.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
The invention is further described below in connection with the drawings, but is not in any way restricted.
Example 1:
with reference to fig. 1, 2, 3, 4, 5, 6, 7, 8 and 9, a high initial speed 35mm sniping grenade launcher adopting a fire transfer passage area air guide control double-chamber device comprises a barrel 1, a movable double-chamber and a rear spraying module, wherein the movable double-chamber is arranged in the barrel 1; the movable double-chamber comprises a front chamber 3 and a rear chamber 11, a movable block 4 is arranged in the front chamber 3 and provided with a movable block hole 304 for controlling the area of a fire transmission channel, the movable block 4 is arranged in the movable block hole 304 and meets the sliding fit, and the length of the movable block hole is 30mm; the movable block 4 is a conical round table, the front end surface area is smaller than the rear end surface area, an initial fire transfer hole 402 is formed in the movable block 4, and the initial fire transfer hole 402 is positioned in the center of the movable block 4 and serves as a fire transfer channel for enabling fuel gas of the front and rear chambers 11 to flow into the front chamber 3; when the pressure of the gas in the front chamber 3 increases to a certain value, the movable block 4 is separated from the front chamber 3, so that the area of a fire transmission channel is increased; the rear chamber 11 is sleeved and fixed at the rear part of the front chamber 3, a rear chamber air vent 1101 is formed in the side wall of the rear chamber 11, a barrel air vent 103 is formed in the side wall of the barrel 1, the barrel air vent 103 is communicated with the rear chamber air vent 1101, the rear chamber 11 is provided with a baffle 12 for blocking the rear chamber air vent 1101 and an initial fire transfer hole 402, and the baffle 12 is made of inflammable materials; the movable double-chamber also comprises a pellet 13, the pellet 13 is arranged in the front chamber 3, and the front chamber 3 and the rear chamber 11 are filled with solid gunpowder; the rear spraying module is arranged on the barrel 1 and is communicated with the inside of a rear chamber 11 in the movable double chamber; the rear spraying module comprises a connecting block 7, a piston 8, a reset spring 9 and a rear spraying pipe 10, wherein an air guide channel 701 is formed in the connecting block 7, the air guide channel 701 is communicated with an air guide hole 1101 of the rear chamber, the piston 8 is arranged between the air guide channel 701 and the rear spraying pipe 10 and can slide, the reset spring 9 is arranged between the piston 8 and the connecting block 7, the rear spraying pipe 10 is inserted in the connecting block 7 and is used for guiding out fuel gas in the rear chamber 11 and spraying the fuel gas backwards from the side of the barrel 1, and the length of the air guide pipe 10 is required to guide the fuel gas to a position behind the shoulder supporting rear part of the weapon more than 350 mm; a first channel 1001, a second channel 1002 and an expanding nozzle 1003 are sequentially arranged in the rear spray pipe 10, and the area of the first channel 1001 is larger than that of the second channel 1002.
The working principle of the embodiment is as follows: when the projectile is launched, the firing pin 15 strikes the solid gunpowder 14 at the bottom of the rear chamber 11, the solid gunpowder 14 of the rear chamber 11 is ignited, the partition plate 12 is burnt by high-temperature and high-pressure gas in the rear chamber 11, the rear chamber gas guide hole and the initial fire guide hole 402 are opened, the rear chamber 11 is communicated with the gas guide channel 701, the gunpowder gas in the rear chamber 11 flows into the front chamber 3 through the initial fire guide 402 hole of the movable block 4 to ignite the gunpowder of the front chamber 3, the pressure of the gunpowder gas in the rear chamber 11 is higher than the pressure of the gunpowder gas in the front chamber 3, the gunpowder gas in the rear chamber 11 continuously flows into the front chamber 3, the projectile 13 is pushed to move forwards after the extrusion pressure of the projectile 13 is overcome, when the pressure of the rear chamber 11 is increased to the pressure of the rear chamber 11, which acts on the reset spring 9, is higher than the elastic force of the reset spring 9 acting on the piston 8, the piston 8 moves upwards, the rear spray pipe 10 is opened, the gunpowder gas in the rear chamber 11 flows into the rear spray pipe 10 sequentially through the rear chamber gas-guide hole 1101, the barrel gas-guide hole 103 and the gas-guide channel 701, the gunpowder gas flows into the first channel 1001 in the rear spray pipe 10, when the gunpowder gas passes through the second channel 1002, the impulse of the gas is further improved due to the fact that the cross section area of a pipeline is reduced, the gunpowder gas is increased, and finally the gunpowder gas is sprayed out from the expanding nozzle 1003 at a high speed, the pressure of the rear chamber 11 is continuously reduced, meanwhile, when the two side areas of the conical round table movable block 4 are unequal, so that a certain pressure difference is generated between the front chamber and the rear chamber, the movable block 4 is pushed into the rear chamber 11 by the gunpowder gas to increase the area of the gas-guide channel, the gunpowder gas in the front chamber 3 continuously flows into the rear chamber 11 through the movable block hole 304 and is finally sprayed out to the rear at a high speed together with the gunpowder gas in the rear chamber 11, so that huge forward impulse is generated, and the recoil impulse of the barrel 1 is counteracted; the sum of the forward gunpowder gas impulse and the projectile 13 impulse is basically equal to the total impulse of the backward gunpowder gas by reasonably designing the double chambers, the initial fire transfer holes 402, the loading capacity of the two chambers, the opening pressure of the piston 8 and the like to control the flow of the gunpowder gas in the double chambers, so that the effect of almost completely eliminating the recoil is achieved.
Example 2
The difference between this embodiment and embodiment 1 is that the front air vent 101 and the rear air vent 102 are respectively opened on the side wall of the barrel 1 from front to back, the air duct 2 is communicated with the front air vent 101 and the rear air vent 102, two clamping shafts 5 are symmetrically arranged between the front chamber 3 and the movable block 4 and used for locking the position of the movable block 4, the movable block 4 is in a cylindrical structure, a plurality of initial fire transfer holes 402 are uniformly distributed along the axial direction of the movable block 4 and used for communicating the rear chamber 11 with the front chamber 3 in the initial state, the clamping shaft sliding holes 401 with a through diameter of 5mm are radially opened in the movable block 4, elastic materials 6 are arranged in the clamping shaft sliding holes 401 and used for limiting the positions of the clamping shafts 5, the elastic materials 6 are arranged between the two clamping shafts 5, the clamping shafts 5 are simultaneously inserted in the clamping shaft holes 303 and the clamping shaft sliding holes 401 and meet the sliding fit, and the air duct 2 is arranged on the barrel 1, the side wall of the movable block hole 304 is provided with a clamping shaft hole 303, a flow passage 302 is arranged between the air guide groove 301 and the clamping shaft hole 303, the air guide groove 301 and the flow passage 302 are used for guiding high-pressure air in the air guide pipe 2 to control the clamping shaft 5 to move, the high-pressure air in the front part of the barrel 1 is guided into the front cavity 3 after being used for a projectile and pushes the clamping shaft 5 to move and compress the elastic material 6, the unlocking of the movable block 4 is realized, and after the high initial speed 35mm sniper grenade launcher is adopted in the invention, compared with a common weapon, the dual-cavity baffle plate is used for controlling the recoil impulse of the recoil weapon to start to drop at the internal trajectory time of 0.510ms, the recoil impulse reaches-0.446 N.s at the internal trajectory time of 0.529ms, and then starts to rise, and the recoil impulse is 0.0598 N.s at the internal trajectory time of 0.550ms, so that shoulder-propping launching can be realized.
The working principle of the embodiment is as follows: when the projectile is launched, the firing pin 15 strikes the solid gunpowder 14 at the bottom of the rear chamber, the solid gunpowder 14 of the rear chamber 11 is ignited, the partition plate 12 is burnt by high-temperature and high-pressure gas in the rear chamber 11, the rear chamber gas guide hole 1101 and the initial fire guide hole 402 are opened, the rear chamber 11 is communicated with the gas guide channel 701, the gunpowder gas in the rear chamber 11 flows into the front chamber 3 through the initial fire guide hole 402 of the movable block 4 to ignite the gunpowder of the front chamber 3, the pressure of the gunpowder gas in the rear chamber 11 is higher than the pressure of the gunpowder gas in the front chamber 3 in the initial stage, the gunpowder gas in the rear chamber 11 continuously flows into the front chamber 3, the projectile 13 is pushed to move forwards after the extrusion pressure of the projectile 13 is overcome, when the pressure of the rear chamber 11 is increased to the pressure of the rear chamber 11 is higher than the elastic force of the reset spring 9 on the piston 8, the piston 8 moves upwards, the rear spray pipe 10 is opened, the gunpowder gas in the rear chamber 11 flows into the rear spray pipe 10 sequentially through the rear chamber air guide hole 1101, the barrel air guide hole 103 and the air guide channel 701, the gunpowder gas firstly flows into the first channel 1001 in the rear spray pipe 10, when the gunpowder gas passes through the second channel 1002, the after-spraying time of the gunpowder gas is increased to further improve the impulse of the gas due to the reduction of the cross section area of the pipeline, and finally the gunpowder gas is sprayed out from the expanding nozzle 1003 at a high speed, the pressure of the rear chamber 11 is continuously reduced, meanwhile, after the projectile 13 passes through the front air guide hole 101, the gunpowder gas passes through the air guide pipe 2, the rear air guide hole 102, the air guide groove 301 and the flow channel 302 sequentially through the front air guide hole 101, the pressure of the front chamber 3 is increased to the pressure acting on the clamping shaft 5, the elastic material is continuously compressed until the clamping shaft 5 completely enters the clamping shaft sliding hole 401, the movable block 4 is unlocked and is pushed into the rear chamber 11 by the gunpowder gas of the front chamber 3 to increase the area of the fire guide channel, the gunpowder gas in the front cavity continuously flows into the rear cavity 11 through the movable block hole 304 and is finally ejected to the rear at a high speed together with the gunpowder gas in the rear cavity 11 to generate huge forward impulse, so that the recoil impulse of the barrel is counteracted; the sum of the forward gunpowder gas impulse and the projectile 13 impulse is basically equal to the total impulse of the backward gunpowder gas by reasonably designing the double chambers, the initial fire transfer holes 402, the loading capacity of the two chambers, the opening pressure of the piston 8 and the like to control the flow of the gunpowder gas in the double chambers, so that the effect of almost completely eliminating the recoil is achieved.
Claims (6)
1. The device is characterized by comprising a barrel (1), a movable double-chamber and a back spraying module, wherein the movable double-chamber is arranged in the barrel (1);
the movable double-chamber comprises a front chamber (3) and a rear chamber (11), and the rear chamber (11) is sleeved and fixed at the rear part of the front chamber (3);
a movable block (4) is arranged in the front cavity (3) and is used for controlling the area of the fire transmission channel; a baffle plate (12) is arranged in the rear chamber (11) and is used for blocking an initial fire transmission hole (402) of the movable block (4) and an air guide channel (701) of the rear spraying module;
an initial fire transfer hole (402) is formed in the movable block (4) and is used as a fire transfer channel for enabling fuel gas of the front-stage and rear-stage chamber (11) to flow into the front chamber (3); when the pressure of the gas in the front chamber (3) is increased to a certain value, the movable block (4) is separated from the front chamber (3) so as to increase the area of the fire transmission channel;
the movable double-chamber device also comprises a pellet (13), wherein the pellet (13) is arranged in the front chamber (3), and both the front chamber (3) and the rear chamber (11) are filled with solid gunpowder (14);
the rear spraying module is arranged on the barrel (1) and comprises a connecting block (7), a piston (8), a reset spring (9) and a rear spraying pipe (10); an air guide channel (701) is formed in the connecting block (7), and the air guide channel (701) is communicated with the inside of the rear cavity (11); the rear spray pipe (10) is inserted into the connecting block (7) and is used for guiding out high-pressure gas in the rear chamber (11) and spraying the gas backwards from the side of the barrel (1); the piston (8) is arranged between the air guide channel (701) and the rear spray pipe (10) and can slide along the air guide channel (701) for controlling the opening and closing of the rear spray pipe (10);
the reset spring (9) is arranged between the piston (8) and the connecting block (7), when the pressure of the air guide channel (701) is increased to a certain value, the piston slides, so that the rear spray pipe (10) is communicated with the air guide channel (701), and gunpowder gas is sprayed backwards.
2. The dual-chamber device for controlling the area of a fire transmission channel and the air conduction of claim 1, wherein the movable block (4) is a conical round table, the area of the front end surface is smaller than that of the rear end surface, and the initial fire transmission hole (402) is positioned at the center of the movable block (4).
3. The dual-chamber device for controlling the area of a fire transmission channel and air guide according to claim 1, further comprising an air guide pipe (2), a clamping shaft (5) and an elastic material (6);
two clamping shafts (5) are symmetrically arranged between the front cavity (3) and the movable block (4) and used for locking the position of the movable block (4), an elastic material (6) is arranged between the two clamping shafts (5), and the elastic material (6) is positioned in the movable block (4) and used for limiting the position of the clamping shaft (5);
the barrel (1) is provided with an air duct (2) for guiding high-pressure air in the front part of the barrel (1) into the front cavity (3) after the shot and pushing the clamping shaft (5) to move and compress the elastic material (6) so as to unlock the movable block (4).
4. The dual chamber device for controlling the area of a fire transfer passage and the air conduction of claim 1, wherein the movable block (4) has a cylindrical structure, and a plurality of initial fire transfer holes (402) are uniformly distributed along the axial direction of the movable block (4).
5. The device for controlling the area of the fire transmission channel and the air guide according to claim 1, wherein a first channel (1001), a second channel (1002) and an expanding nozzle (1003) are sequentially arranged in the rear nozzle (10), and the area of the first channel (1001) is larger than that of the second channel (1002).
6. The device for controlling the area of the fire transmission channel and the air guide and the double-chamber according to claim 1, wherein a front air guide hole (101) and a rear air guide hole (102) are respectively formed on the side wall of the barrel (1) from front to back, and the air guide pipe (2) is communicated with the front air guide hole (101) and the rear air guide hole (102);
an annular air guide groove (301) is formed in the outer side of the front cavity (3), and the air guide groove (301) is communicated with the rear air guide hole (102); a movable block hole (304) is formed in the front cavity (3), and the movable block (4) is arranged in the movable block hole (304) and meets sliding fit; the side wall of the movable block hole (304) is provided with a clamping shaft hole (303), and a flow passage (302) is arranged between the air guide groove (301) and the clamping shaft hole (303).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310992609.0A CN117053624A (en) | 2023-08-08 | 2023-08-08 | Dual-chamber device for controlling area of fire transmission channel and air conduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310992609.0A CN117053624A (en) | 2023-08-08 | 2023-08-08 | Dual-chamber device for controlling area of fire transmission channel and air conduction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117053624A true CN117053624A (en) | 2023-11-14 |
Family
ID=88654535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310992609.0A Pending CN117053624A (en) | 2023-08-08 | 2023-08-08 | Dual-chamber device for controlling area of fire transmission channel and air conduction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117053624A (en) |
-
2023
- 2023-08-08 CN CN202310992609.0A patent/CN117053624A/en active Pending
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