阅读说明：本技术 一种多联可变泡沫发生器 (Multi-connected variable foam generator ) 是由 郝伟 刘洪强 林佳 李瓯雪 于 2021-07-27 设计创作，主要内容包括：本发明公开了一种多联可变泡沫发生器,涉及消防设备技术领域,其技术方案要点是：泡沫发生器包括本体以及炮头,本体具有相连通的入口流道、出口流道,炮头设置有至少两个,炮头均与本体可拆卸连接,且炮头均与出口流道连通。根据实际场景,组装好合适数量的炮头；混合液经入口流道、出口流道进入多个炮头内,之后通过多个炮头喷射,混合液经多个炮头生产泡沫,能够有效提高混合液的发泡倍数,同时也增加了泡沫的喷射面积,使得泡沫能够快速覆盖着火对象。(The invention discloses a multi-connected variable foam generator, relating to the technical field of fire fighting equipment, and the key points of the technical scheme are as follows: the foam generator comprises a body and a gun head, wherein the body is provided with an inlet flow channel and an outlet flow channel which are communicated, the gun head is provided with at least two, the gun head is detachably connected with the body, and the gun head is communicated with the outlet flow channel. Assembling a proper number of gun heads according to an actual scene; mixed liquid enters the plurality of gun heads through the inlet flow channel and the outlet flow channel, and then is sprayed through the plurality of gun heads, and the mixed liquid produces foam through the plurality of gun heads, so that the foaming multiple of the mixed liquid can be effectively improved, and meanwhile, the spraying area of the foam is also increased, and the foam can quickly cover an ignition object.)

1. A multiple variable foam generator is characterized in that: the foam generator comprises a body (100) and a gun head (200), wherein the body (100) is provided with an inlet flow channel (110) and an outlet flow channel (120) which are communicated, at least two gun heads (200) are arranged, the gun heads (200) are detachably connected with the body (100), and the gun heads (200) are communicated with the outlet flow channel (120).

2. A multiple variable foam generator as set forth in claim 1, wherein: the cannon heads (200) are detachably connected, and the cannon heads (200) are mutually communicated.

3. A multiple variable foam generator as set forth in claim 1, wherein: a diverter disc (300) is arranged in the body (100), and the diverter disc (300) can divide media in the outlet flow channel (120) into the gun head (200).

4. A multiple variable foam generator as claimed in claim 3, wherein: a fixing frame (111) is arranged in the inlet flow passage (110), and the flow distribution disc (300) is connected to the fixing frame (111).

5. A multiple variable foam generator as set forth in claim 1, wherein: the gun heads (200) are horizontally distributed.

6. A multiple variable foam generator as claimed in any one of claims 1 to 5, wherein: the gun head (200) comprises a connecting pipe (210) and a foaming device (400), wherein the connecting pipe (210) is connected with the foaming device (400); the connecting pipe (210) is provided with a first connecting part (211) and a second connecting part (212), the first connecting part (211) is matched with the second connecting part (212), the first connecting part (211) can be connected with the body (100), the connecting pipe (210) is communicated with the outlet flow channel (120), and a plug (213) capable of sealing the second connecting part (212) is arranged on the connecting pipe (210).

7. A multiple variable foam generator as claimed in claim 6, wherein: foaming device (400) include foaming pipe (410), bubbler (420), foaming cylinder (430) and foaming subassembly (440), foaming pipe (410) with connecting pipe (210) are connected, just foaming pipe (410) with connecting pipe (210) intercommunication, bubbler (420) set up in foaming pipe (410), foaming cylinder (430) with foaming pipe (410) are connected, a plurality of external air inlets (431) of intercommunication are seted up on foaming cylinder (430), foaming subassembly (440) set up in foaming cylinder (430).

8. A multiple variable foam generator as claimed in claim 7, wherein: the foaming component (440) comprises a first foaming plate (441), the first foaming plate (441) is arranged in the foaming cylinder (430), a plurality of first meshes (4411) are formed in the outer ring of the first foaming plate (441), and the middle of the first foaming plate (441) is sunken towards one side far away from the connecting pipe (210).

9. A multiple variable foam generator as set forth in claim 8, wherein: the foaming component (440) further comprises a second foaming plate (442), the second foaming plate (442) is arranged in the foaming cylinder (430), the second foaming plate (442) is located on the outer side of the first foaming plate (441), a plurality of second meshes (4421) communicated with the first meshes (4411) are formed in the outer ring of the second foaming plate (442), a collecting cavity (4422) is formed in the middle of the second foaming plate (442), and the collecting cavity (4422) can be accommodated by the first foaming plate (441).

10. A multiple variable foam generator as claimed in any one of claims 1 to 5, wherein: the body (100) is provided with a first joint (130).

11. A multiple variable foam generator as claimed in claim 10, wherein: the foam generator further comprises an extension pipe (500), the extension pipe (500) is connected with the first connector (130), and the other end, which is not connected with the first connector, of the extension pipe (500) is provided with a second connector (510).

12. A multiple variable foam generator as claimed in any one of claims 1 to 5, wherein: an outer cover (600) is arranged on one side, away from the body (100), of the gun head (200).

13. A multiple variable foam generator as claimed in claim 12, wherein: an inner cavity (610) communicated with the gun head (200) is formed in the outer cover (600), and the inner cavity (610) is provided with a flow guide surface (611).

Technical Field

The invention relates to the technical field of fire fighting equipment, in particular to a multiple variable foam generator.

Background

The traditional elevating jet fire truck is provided with an elevating arm support (ladder frame) on the fire truck, a foam gun or a water gun is arranged at the top end of the arm support to realize high-altitude jet fire extinguishing agent, and the fire extinguishing agent is remotely jetted to cover the surface of a firing object to separate and cool the firing object so as to realize the purpose of fire extinguishing.

However, the traditional fire-fighting foam monitor has the following disadvantages: most of the fire monitors installed on the elevating jet fire truck are single-cylinder fixed-multiple foam monitor heads, and the foam form and the foam multiple are single and cannot be adjusted; when the mixed liquid of water and foam is sprayed by the gun head, the mixed liquid is disordered and unstable, and the foam expansion and range are greatly influenced.

Disclosure of Invention

In view of the defects of the prior art, the invention aims to provide a multiple variable foam generator which has the advantage of being capable of increasing the foaming times.

The technical purpose of the invention is realized by the following technical scheme: the utility model provides a changeable foam generator ally oneself with more, foam generator includes body and big gun head, the body has entry runner, the exit runner that is linked together, big gun head is provided with at least two, big gun head all with the body can be dismantled and be connected, just big gun head all with exit runner intercommunication.

By the technical scheme, a proper number of gun heads are assembled according to an actual scene; the mixed liquid (water with certain pressure is mixed with the foam extinguishing agent) enters the plurality of gun heads through the inlet runner and the outlet runner, and then is sprayed by the plurality of gun heads, the mixed liquid produces foam through the plurality of gun heads, so that the air oxygen inlet amount in the gun heads is increased when the foam occurs, and the foaming times of the mixed liquid are effectively improved; simultaneously, the setting of a plurality of big gun heads has also increased the jet area of foam for the foam can cover the object of catching fire fast.

Preferably, the cannon heads are detachably connected, and are communicated with each other.

Through above-mentioned technical scheme, the big gun head can arrange the combination according to actual need, and big gun head quantity can increase and decrease promptly, and the compound mode is various, and application scope is wider.

Preferably, a diverter plate is arranged in the body, and the diverter plate can divide the medium in the outlet flow channel into the gun head.

According to the technical scheme, when the mixed liquid enters the outlet flow channel from the inlet flow channel, the mixed liquid is divided by the flow dividing disc, so that the whole strand of the mixed liquid can uniformly enter a plurality of gun heads after being dispersed, and sufficient foam can be generated in each gun head; meanwhile, the flow distribution disc can also effectively reduce the problem that the mixed liquid directly impacts an outlet flow channel to cause the vibration of the foam generator, and improve the working stability of the foam generator; in addition, the splitter plate can also avoid the problem of mixed liquid disorder.

Preferably, a fixing frame is arranged in the inlet flow passage, and the flow distribution disc is connected to the fixing frame.

Through above-mentioned technical scheme, the flow distribution plate sets up on the mount, when having guaranteed the flow distribution plate rigidity, the mount can not influence the flow of mixed liquid yet.

Preferably, the cannon heads are distributed horizontally.

Through the technical scheme, the gun heads distributed in parallel further increase the coverage area after foam injection, thereby increasing the fire extinguishing efficiency.

Preferably, the gun head comprises a connecting pipe and a foaming device, and the connecting pipe is connected with the foaming device; the connecting pipe is provided with a first connecting part and a second connecting part, the first connecting part is matched with the second connecting part, the first connecting part can be connected with the body, the connecting pipe is communicated with the outlet flow channel, and a plug capable of sealing the second connecting part is arranged on the connecting pipe.

According to the technical scheme, the first connecting part and the second connecting part are adaptive, and the first connecting part of the connecting pipe can be connected with the second connecting part of the adjacent connecting pipe, so that the number of the gun heads can be adjusted randomly; after the gun heads are assembled, two connecting pipes which are farthest away from the body can be sealed through the plugs, so that the sealing performance of the foam generator is guaranteed.

Preferably, the foaming device includes foaming pipe, bubbler, foaming section of thick bamboo and foaming subassembly, the foaming pipe with the connecting pipe is connected, just the foaming pipe with the connecting pipe intercommunication, the bubbler set up in the foaming pipe, the foaming section of thick bamboo with the foaming union coupling, a plurality of external air inlets of intercommunication have been seted up on the foaming section of thick bamboo, the foaming subassembly set up in the foaming section of thick bamboo.

Through the technical scheme, the mixed liquid enters the foaming cylinder through the outlet flow channel, the connecting pipe and the foaming pipe, the mixed liquid acts on the bubbler and generates foam in the connecting pipe, oxygen (oxygen in the air) enters the foaming cylinder through the air inlet, so that the mixed liquid is fully contacted with the oxygen in the foaming cylinder, the foaming component continues to increase the multiple of the foam, and the generation of high-multiple foam is realized.

Preferably, the foaming subassembly includes foaming board one, foaming board one set up in the foaming section of thick bamboo, just a plurality of mesh one have been seted up to the outer lane of foaming board one, the middle part of foaming board one is to keeping away from one side of connecting pipe is sunken.

Through the technical scheme, the first foaming plate intercepts the mixed liquid or foam entering the foaming cylinder, the mixed liquid is prevented from being directly sprayed out, the middle part of the first foaming plate is sunken, and the containing volume of the mixed liquid is increased; meanwhile, the middle part of the first foaming plate is sunken, so that the number of the first meshes is effectively increased, and the foaming times of the foam are improved.

Preferably, the foaming subassembly still includes foaming board two, foaming board two set up in the foaming section of thick bamboo, just the foaming board two is located the outside of foaming board one, the outer lane of foaming board two seted up a plurality ofly with mesh two of a mesh intercommunication, the middle part of foaming board two has the collection chamber, it can supply to collect the chamber foaming board one holds.

Through above-mentioned technical scheme, foaming board two sets up in the outside of foaming board one, and the foam that mesh one produced passes through mesh two and discharges, and the cavity is collected then to get into to the whole discharged foam of mesh two, collects the chamber and collects full foam back, and the foam of discharging then can directly discharge through mesh two in the mesh one, has further improved the foaming multiple of foam.

Preferably, the body is provided with a first joint.

Through the technical scheme, the body can be directly connected with the lifting arm support of the fire fighting truck through the first connector.

Preferably, the foam generator further comprises an extension pipe, the extension pipe is connected with the first connector, and the other end of the extension pipe is provided with a second connector.

Through the technical scheme, the arrangement of the extension pipe enables the foam generator to extend above a fired object, and ensures that foam can directly cover the surface of the fired object under the action of gravity; in addition, the lifting arm support of the fire fighting truck can be prevented from being damaged by the high temperature of the fire catching object.

Preferably, one side of the cannon head, which is far away from the body, is provided with an outer cover.

Through above-mentioned technical scheme, the formation of foam in the big gun head can effectively be avoided being influenced by the high altitude air current to the setting of dustcoat for the big gun head can produce the foam of sufficient multiple.

Preferably, an inner cavity communicated with the gun head is formed in the outer cover, and the inner cavity is provided with a flow guide surface.

Through the technical scheme, all foams generated by the gun head enter the inner cavity and then flow out of the flow guide surface, so that the foams can be collected and uniformly discharged, the problem that the falling point is influenced by air flow or wind due to small volume in the falling process of the foams is solved, the falling point of the foams can be accurately controlled by firemen, and the fire extinguishing efficiency is improved; in addition, the foam is uniformly discharged after being collected, and the foam amount is increased to a certain extent.

Drawings

FIG. 1 is a schematic external structural view according to a first embodiment;

FIG. 2 is a schematic view of an external structure of a body connected to an extension pipe according to an embodiment;

FIG. 3 is a schematic view of the full cross-section of FIG. 2;

FIG. 4 is a schematic diagram of the exploded structure of FIG. 2;

FIG. 5 is a schematic view of a full-section structure of a gun head according to a first embodiment;

FIG. 6 is an enlarged view of portion A of FIG. 5;

FIG. 7 is a schematic structural diagram of a housing according to an embodiment;

FIG. 8 is a schematic external structural view according to the first embodiment;

FIG. 9 is a schematic view of the full cross-section of FIG. 8;

FIG. 10 is a schematic sectional view of the assembled body and foaming device in the second embodiment;

FIG. 11 is a schematic external view of the second embodiment;

fig. 12 is a schematic view of the full-section structure of fig. 11.

Reference numerals: 100. a body; 110. an inlet flow passage; 111. a fixed mount; 120. an outlet flow passage; 121. an outlet I; 122. an outlet II; 130. a first connector;

200. a gun head; 210. a connecting pipe; 211. a first connecting part; 212. a second connecting part; 213. a plug;

300. a diverter tray; 310. a guide surface;

400. a foaming device; 410. a foam tube; 411. an ejection port; 420. a bubbler; 430. a foam cylinder; 431. an air inlet; 440. a foaming component; 441. a first foaming plate; 4411. mesh one; 442. a second foam board; 4421. mesh II; 4422. a collection chamber;

500. an extension tube; 510. a second joint;

600. a housing; 610. an inner cavity; 611. a flow guide surface.

Detailed Description

In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

The present invention will be described in further detail with reference to the accompanying drawings.

The first embodiment is as follows:

as shown in fig. 1 to 9, the multiple variable foam generator includes a body 100 and two gun heads 200, the body 100 has an inlet flow passage 110 and an outlet flow passage 120 which are communicated, the gun heads 200 are provided with at least two, the plurality of gun heads 200 are detachably connected with the body 100, and the gun heads 200 are communicated with the outlet flow passage 120.

Preferably, the outlet flow channel 120 has a first outlet 121 and a second outlet 122, and the plurality of cannon heads 200 are detachably connected to the first outlet 121 and/or the second outlet 122.

The plurality of cannon heads 200 are detachably connected, and the plurality of cannon heads 200 are mutually communicated.

A diverter disc 300 is arranged in the body 100, and the diverter disc 300 can divert the medium in the outlet flow passage 120 into the gun head 200. Further, a fixing frame 111 is disposed in the inlet flow passage 110, and the diversion tray 300 is connected to the fixing frame 111. The fixing frame 111 may be integrally formed in the body 100, or may be detachably disposed in the body 100. Preferably, the side of the diverter tray 300 facing the inlet channel 110 has a guide surface 310, and the guide surface 310 may be a curved surface or a slant surface.

In order to ensure the coverage area of the foam, a plurality of gun heads 200 are horizontally distributed. Alternatively, the cannon heads 200 may be circumferentially distributed, such as to ensure the amount of foam per unit time.

The cannon head 200 comprises a connecting pipe 210 and a foaming device 400, wherein the connecting pipe 210 is connected with the foaming device 400, and it should be noted that the connecting pipe 210 and the foaming device 400 can be integrally formed, and can also be welded or detachably connected; the connecting pipe 210 has a first connecting portion 211 and a second connecting portion 212, the first connecting portion 211 is adapted to the second connecting portion 212, the first connecting portion 211 can be connected to the body 100, the connecting pipe 210 is communicated with the outlet flow channel 120, and the connecting pipe 210 is detachably connected to a plug 213 capable of sealing the second connecting portion 212. That is, the adjacent connection pipes 210 can be connected by the first connection part 211 and the second connection part 212, and only the connection pipe 210 far from the body 100 needs to be sealed by the plug 213, so that the sealing performance after the connection between the connection pipe 210 and the outlet flow channel 120 is ensured. The plug 213 may be integrally formed with the connection pipe 210.

Of course, the first connecting portion 211 and the second connecting portion 212 may be exchanged without departing from the scope of the present invention. The first connecting part 211 and the second connecting part 212 can be detachably connected through threads, clamping and the like.

Further, the foaming device 400 comprises a foaming tube 410, a bubbler 420, a foaming cylinder 430 and a foaming assembly 440, wherein the foaming tube 410 is connected with the connecting tube 210, the end part of the foaming tube 410, which is far away from the connecting tube 210, is reduced in diameter to form an injection port 411, the foaming tube 410 is communicated with the connecting tube 210, the bubbler 420 is arranged in the foaming tube 410, the foaming cylinder 430 is connected with the foaming tube 410, and a plurality of air inlets 431 communicated with the outside are formed in the foaming cylinder 430, so that the mixed liquid can be fully contacted with oxygen (oxygen in the air) in the foaming cylinder 430, and the foaming ratio of the mixed liquid is improved; the foaming component 440 is disposed in the foaming cylinder 430.

The foaming component 440 includes a foaming plate 441, the foaming plate 441 is fixedly or detachably connected in the foaming cylinder 430, a plurality of meshes 4411 are circumferentially arranged on the outer ring of the foaming plate 441 close to the foaming cylinder 430, and the middle of the foaming plate 441 is recessed towards one side far away from the connecting pipe 210.

Further, the foaming component 440 further includes a second foaming plate 442, the second foaming plate 442 is disposed in the foaming cylinder 430, the second foaming plate 442 is located outside the first foaming plate 441, the outer ring of the second foaming plate 442 is provided with a plurality of second meshes 4421 communicated with the first meshes 4411, the middle of the second foaming plate 442 is provided with a collecting cavity 4422, and the collecting cavity 4422 can be accommodated by the first foaming plate 441.

As shown in fig. 4 and 10, the body 100 is provided with a first joint 130, and the first joint 130 may be a movable joint or a quick joint. The foam generator further comprises an extension pipe 500, the extension pipe 500 is connected with the first connector 130, the extension pipe 500 is communicated with the inlet flow channel 110, the second connector 510 is arranged at the other end of the extension pipe 500, and the second connector 510 can be a movable connector or a quick connector.

Preferably, the side of the gun head 200 remote from the body 100 is provided with a shroud 600. Further, the outer cover 600 has an inner cavity 610 therein, which is communicated with the gun head 200, and the inner cavity 610 is opened toward the gun head 200, and the inner cavity 610 has a flow guiding surface 611 capable of guiding the foam.

The working principle of the multiple variable foam generator is as follows:

according to the application scene of actual needs, the proper number of the cannon heads 200 are loaded and unloaded, the outer cover 600 is installed on the outer side of the cannon heads 200, so that the outer cover 600 can cover the cannon muzzle, and then the foam generator is installed at the end part of the elevating arm support of the fire fighting truck.

The mixed liquid (water with certain pressure is mixed with the foam extinguishing agent) enters the outlet flow channel 120 through the extension pipe 500 and the inlet flow channel 110, and is then separated by the diversion plate 300, so that the mixed liquid respectively enters the connecting pipes 210 of the plurality of gun heads 200, the mixed liquid in the connecting pipes 210 is sprayed into the foaming cylinder 430 from the spraying opening 411 of the foaming pipe 410, the mixed liquid generates primary foam after passing through the bubbler 420, the foam and the mixed liquid enter the foaming cylinder 430 and impact the foaming plate one 441, oxygen continuously entering the foaming cylinder 430 through the air inlet 431 is fully contacted with the foam in the foaming cylinder 430, the foaming multiple of the foam is increased, and then the foam is discharged through the mesh one 4411 and the mesh two 4421, so that the foaming multiple of the foam is further increased; part of the foam enters the collecting cavity 4422 and is discharged from the second mesh 4421 after the collecting cavity 4422 is filled with the foam, so that the foam is generated.

All the foam generated by the gun head 200 enters the inner cavity 610 to be collected, and then is discharged from the flow guide surface 611 and falls to the surface of the firing object.

Each gun head 200 can generate foam, the foam generator can effectively improve the foaming multiple of the mixed liquid on the premise of keeping the supply quantity unchanged, and each foaming cylinder 430 is provided with a plurality of air inlets 431, so that the oxygen inlet quantity is increased; the number of the cannon heads 200 can be increased or decreased, and the coverage area of the foam is increased.

Example two:

the difference between the second embodiment and the first embodiment is that: as shown in fig. 10 to 12, at least one foaming device 400 is disposed on the body 100 and is communicated with the outlet flow passage 120, and the rest of the cannon heads 200 are detachably connected to the first outlet 121 and/or the second outlet 122.

The above description is intended to be illustrative of the present invention and not to limit the scope of the invention, which is defined by the claims appended hereto.