CN218010721U

CN218010721U - Multifunctional foam gun

Info

Publication number: CN218010721U
Application number: CN202222093588.2U
Authority: CN
Inventors: 丁兆斌; 耿广发; 田步飞
Original assignee: Shanghai Huarui Rescue Equipment Co ltd
Current assignee: Shanghai Huarui Rescue Equipment Co ltd
Priority date: 2021-09-05
Filing date: 2022-08-09
Publication date: 2022-12-13
Anticipated expiration: 2032-08-09

Abstract

The utility model provides a multi-functional foam big gun, a serial communication port, include: the gun comprises a gun body and a gun head, wherein the gun head comprises a tee joint part, a low-power gun barrel and a medium-power gun barrel; the tee fitting includes: the gun body passage is used for communicating the gun body; the low-power gun passage is used for communicating the low-power gun barrel; and the medium-time gun passage is used for communicating the medium-time gun barrel. The utility model discloses a multi-functional foam big gun can provide the foam big gun of multiple range and foaming multiple simultaneously, and fluidic state can be adjusted as required moreover, has increased the flexibility of foam big gun, simple structure low cost moreover.

Description

Multifunctional foam gun

Technical Field

The utility model relates to a fire-fighting equipment especially relates to a can adjust injection angle, and the foam big gun that the big gun head can rotate.

Background

The principle of the foam gun for fire fighting is that fire fighting water with certain pressure is mixed with foam liquid through a foam proportion mixing device to form foam mixed liquid with certain proportion, and the foam mixed liquid is sprayed out through a spray head to form air foam so as to achieve the fire fighting effect. The foam mixed liquid is sucked into the air, and the foam guns with different times are suitable for different types of fire. Factors influencing the foaming ratio include the contact time and the contact area of the mixed liquid and air, so that different foaming ratios can be realized by changing the structure of the gun besides the components of the foaming agent.

The existing foam cannons can be divided into high-power cannons, medium-power cannons and low-power cannons according to different foaming times. Generally, the higher the expansion factor, the closer the range, that is, the higher the expansion factor, the larger the high-power cannon is than the medium-and low-power cannons, but the lower the cannon is larger than the medium-and high-power cannons. However, in any cannon, the foaming multiple is fixed, the jet state of the jetted cannon is also fixed, the actual fire extinguishing requirement is variable, and the cannon with the fixed foaming multiple and the fixed jet state lacks flexibility.

SUMMERY OF THE UTILITY MODEL

In view of the above shortcomings of the prior art, the utility model provides a multifunctional foam cannon, which is characterized in that comprises: the gun comprises a gun body and a gun head, wherein the gun head comprises a tee joint part, a low-power gun barrel and a medium-power gun barrel; the tee fitting includes: the gun body passage is used for communicating the gun body; the low-power gun passage is used for communicating the low-power gun barrel; and the medium-time gun passage is used for communicating the medium-time gun barrel.

Preferably, in the above multifunctional foam gun, a switching valve is disposed at an intersection of the gun body passage, the low-power gun passage and the medium-power gun passage, one end of the switching valve is provided with a plug, and the other end of the switching valve is connected to the driving mechanism; the plug can rotate among three positions under the driving of the driving mechanism, and when the plug is located at a first position, the low-power gun passage is blocked; when the plug is located at the second position, the medium-time gun passage is plugged; and when the plug is positioned at the third position, the low-power gun passage and the medium-power gun passage are both opened.

Preferably, in the above multifunctional foam gun, a gun barrel cover is arranged at the water outlet of the medium-power gun barrel, and a mesh eye cover is arranged at the water outlet end of the gun barrel cover.

Preferably, in the above multifunctional foam cannon, a rotating shaft is arranged at the upper part of the cannon barrel cover, the rotating shaft is connected with one end of the supporting arm, and the other end of the supporting arm is fixedly connected with the baffle.

Preferably, the multifunctional foam cannon further comprises at least one mechanical link and at least one driving device, wherein the mechanical link can be extended and retracted under the driving of the driving device; the telescopic end of the mechanical connecting rod is connected with the baffle or the supporting arm.

Preferably, in the above multifunctional foam cannon, a rotating assembly is arranged between the tee piece and the cannon body.

Preferably, in the multifunctional foam cannon, the rotating assembly comprises a worm, a first thread is arranged on the outer edge of the worm, a second thread is arranged on the outer edge of the cannon body passage, and the first thread can be meshed with the second thread.

As mentioned above, the utility model discloses a multi-functional foam big gun can provide the foam big gun of multiple range and foaming multiple simultaneously, and fluidic state can be adjusted as required moreover, has increased the flexibility of foam big gun, simple structure low cost moreover. Therefore, it has high industrial utilization value.

Drawings

Fig. 1 is a partial schematic view of a gun head according to an embodiment of the present invention;

FIG. 2 is an enlarged partial view of the embodiment of FIG. 1 with the outer shell removed;

FIG. 3 is a schematic view of the embodiment of FIG. 1 with the shutters in the open and closed positions, respectively;

FIG. 4 is a schematic cross-sectional view of the rotating assembly of the embodiment of FIG. 1.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can be implemented or applied by other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

Please refer to the attached drawings. It should be noted that the drawings provided in the present embodiment are only for schematically illustrating the basic concept of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, amount and proportion of each component may be changed arbitrarily and the layout of the components may be more complicated.

The utility model discloses a multifunctional foam gun, which comprises a gun body and a gun head. The big gun body part is used for providing stability, high-pressure rivers etc. has the commonality, not the utility model discloses an innovation point place. The gun head portion will therefore be described primarily below in connection with the accompanying drawings. Fig. 1 shows a gun head part according to an embodiment of the present invention, including: one end of the three-way piece 1 is communicated with the gun body, the second end is communicated with the low-power gun barrel 2, and the third end is communicated with the medium-power gun barrel 3. Therefore, the gun body can provide the functions of a medium-power gun and a low-power gun at the same time, and the use scene of the fire monitor is enlarged.

In order to further increase the flexibility of the foam gun, the interior of the tee 1 may preferably be provided with a switching valve, as shown in fig. 2. Figure 2 is an enlarged view of the embodiment of figure 1 with the outer shell removed and the tee 1 removed. The three paths of the tee 1 are respectively: a gun body passage 13 communicated with the gun body, a low-power gun barrel passage 14 communicated with the low-power gun barrel and a medium-power gun barrel passage 15 communicated with the medium-power gun barrel. A switching valve 12 and a driving motor are arranged at the intersection of the three paths. One end of the switching valve 12 is a plug, and the other end is connected to the driving motor 11, so that the plug of the switching valve 12 can be driven to rotate between three positions: when the plug rotates to the first position (namely the position shown in figure 2), the low-power cannon is closed, and only the medium-power cannon is opened; if the plug is clockwise rotated to a second position to block the middle-time cannon passage 15, the middle-time cannon is closed, and only the middle-time cannon is opened, and if the plug is further clockwise rotated to a position between the middle-time cannon barrel passage 15 and the cannon body passage 13, the middle-time cannon and the low-time cannon are simultaneously opened.

The medium-power cannon 3 comprises two cannons, a cannon cover 4 is arranged at the water outlet of each cannon, and a mesh cover (not shown) can be arranged at the water outlet end of each cannon cover 4, so that foam mixed liquid is sprayed out of the medium-power cannon 3, passes through meshes, is fully mixed with air and then is sprayed to a target, and the foaming times are increased.

Preferably, the upper part of the barrel housing 4, which is arranged on both sides of the hypo-barrel 2, comprises a rotation shaft 41, respectively, and the two rotation shafts 41 are connected to support arms 42, respectively, and the other ends of the two support arms 42 are fixedly connected to a shutter 7, so that the shutter 7 can be moved between the open position and the closed position by rotating the support arms 42, as shown in fig. 3. The baffle 7 is useful in that the state of the foam cannon jet can be changed as desired, providing greater flexibility to accommodate more fire fighting scenarios.

Preferably, reinforcing ribs 43 are provided on the barrel cover 4, and the rotary shaft 41 is provided on the reinforcing ribs 43, thereby increasing the stability and strength of the rotary shaft 41.

The reference numeral 44 indicates a mechanical link, one end of which is connected to the support arm 42 or the baffle 7, and the extension and contraction of the mechanical link 44 can drive the support arm 42 or the baffle 7 to move, so that the baffle 13 can be switched between the open position and the closed position. In this embodiment, the mechanical linkage 44 is powered by a hydraulic pump 45, and the hydraulic pump 45 can be connected to a remote control device for the purpose of remotely controlling the movement of the flap 7. The surface of the mechanical link 44 may also be provided with threads, so that the extension and retraction of the link 44 can be realized by the rotation of the threaded sleeve driven by the stepping motor, which is also known and therefore not described in detail.

More preferably, a rotating assembly 5 can be additionally arranged between the tee joint 1 and the gun body, so that the tee joint 1 can rotate around the central axis of the gun body passage 13, and the switching of the position relationship of the low-power guns 2 and the medium-power guns 3 is realized. The significance of such switching is: when the medium and low-power cannons are opened simultaneously, the low-power cannon 2 is arranged below the medium-power cannon 3, and a large amount of foam generated by the medium-power cannon 3 can be brought to a farther shooting range by the low-power cannon 2 below the medium-power cannon. When only the low-power cannon 2 is opened, the low-power cannon 2 is rotated to the upper part, and the shooting range is favorably improved.

The rotating assembly 5 in this example is a worm gear structure, and a cross-sectional schematic diagram thereof is shown in fig. 4. The worm 52 is provided with a thread, and the outer periphery of the barrel passage 13 of the three-way member 1 is provided with a thread capable of meshing with the thread on the worm, so that the rotation of the barrel passage 13 can be realized by driving the rotation of the worm 52 by the motor 51.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention, for example, the motor drive in this example can be replaced by a manual or other equivalent drive; the rotation direction of the plug can also be completely opposite to the above example; instead of using a worm gear configuration, the rotating assembly 5 may be any known rotating configuration. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. A multifunctional foam cannon, characterized in that, it comprises:

the gun comprises a gun body and a gun head, wherein the gun head comprises a tee joint part, a low-power gun barrel and a medium-power gun barrel;

the tee fitting includes: the gun body passage is used for communicating the gun body; the low-power gun passage is used for communicating the low-power gun barrel; and the medium-time gun passage is used for communicating the medium-time gun barrel.

2. The multifunctional foam cannon according to claim 1, wherein a switching valve is arranged at the junction of the cannon body passage, the low-power cannon passage and the medium-power cannon passage, one end of the switching valve is provided with a plug, and the other end of the switching valve is connected with a driving mechanism; the choke plug can rotate among three positions under the driving of the driving mechanism, and when the choke plug is located at the first position, the low-power gun passage is blocked; when the plug is located at the second position, the medium-time gun passage is plugged; and when the plug is positioned at the third position, the low-power gun passage and the medium-power gun passage are both opened.

3. The multifunctional foam cannon according to claim 1, wherein a cannon barrel cover is arranged at the water outlet of the medium-power cannon barrel, and a mesh eye cover is arranged at the water outlet end of the cannon barrel cover.

4. The multifunctional foam cannon according to claim 1, wherein a rotating shaft is arranged on the upper portion of the cannon barrel cover, the rotating shaft is connected with one end of a supporting arm, and the other end of the supporting arm is fixedly connected with the baffle.

5. The multifunctional foam cannon according to claim 4, further comprising at least one mechanical link and at least one driving device, wherein the mechanical link can be extended and retracted under the driving of the driving device; the telescopic end of the mechanical connecting rod is connected with the baffle or the supporting arm.

6. The multi-purpose foam cannon of claim 1, wherein a rotation assembly is provided between the tee and the cannon body.

7. The multipurpose foam cannon of claim 6, wherein the rotation assembly comprises a worm having a first thread disposed on an outer periphery of the worm and a second thread disposed on an outer periphery of the barrel passage, the first thread being engageable with the second thread.