CN216824601U - Detachable foam gun - Google Patents

Abstract

An object of the utility model is to provide a detachable foam big gun, a serial communication port, include: the gun body is arranged on the gun seat, and the gun head is connected to the gun body; the gun head comprises a low-power gun barrel, an outer cover and a medium-power nozzle, and the low-power gun barrel is longer than the medium-power nozzle; the outer cover is longer than the low-power gun barrel; and a medium-power foaming net is arranged between the low-power gun nozzle and the medium-power nozzle on the inner wall of the outer cover. The advantages of large foaming times of medium-power guns and long shooting range of low-power guns are combined, and especially according to the preferred embodiment, the gun heads can be conveniently detached and replaced, so that different gun heads can be conveniently replaced to adapt to different fire extinguishing scenes.

Description

Detachable foam gun

Technical Field

The utility model relates to a fire articles for use, more specifically relates to a detachable foam big gun.

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 nozzle to form air foam so as to achieve the fire fighting effect. The foam mixing liquid is expanded in volume after being sucked into air, the foam cannons are divided into low-power foam cannons (the expansion ratio is lower than 20 times), medium-power foam cannons (the expansion ratio is 20-200 times) and high-power foam cannons (the expansion ratio is 200-1000 times), and different expansion ratios can be realized by mixing the foam mixing liquid with air in different degrees through cannon heads with different structures.

The foam cannons of different multiples have different characteristics, for example the medium-power cannon compares with the low-power cannon, and the foam volume is big, and thermal-insulated ability is strong, can block gas and liquid to get into the burning zone, and especially to the concentration that reduces burning material, chemical reaction speed and the regional temperature of burning more effective. But the jet kinetic energy is lower, so the range is not far, the dispersion speed on the surface of the combustion liquid is not enough, the jet is easily damaged by strong fire field heat flow and convection action in the fire extinguishing process, and the fire extinguishing effect is also restricted. The low-power cannon is opposite, jet kinetic energy is high, and the low-power cannon has long-distance fire extinguishing capability, reduces the temperature of a fire scene, and increases the radius of fire extinguishing action.

In view of the respective advantages and disadvantages of the medium-power monitor and the low-power monitor, the fire-fighting foam monitor with the advantages of the medium-power monitor and the low-power monitor is designed, and has important significance for fire-fighting work.

Disclosure of Invention

In view of the above shortcomings of the prior art, an object of the present invention is to provide a detachable foam gun, which is characterized in that it comprises: the gun body is arranged on the gun seat, and the gun head is connected to the gun body; the gun head comprises a low-power gun barrel, an outer cover and a medium-power nozzle, and the low-power gun barrel is longer than the medium-power nozzle; the outer cover is longer than the low-power gun barrel; and a medium-power foaming net is arranged between the low-power gun nozzle and the medium-power nozzle on the inner wall of the outer cover.

Preferably, in the above-mentioned detachable foam gun, the gun head and the gun body are detachably connected.

Preferably, in the above detachable foam monitor, in the detachable connection, the outer wall of the interface of the monitor body is provided with a thread; the outer wall of the end part of the gun head interface is sleeved with a fastening nut, and the fastening nut can slide along the outer wall of the end part of the gun head interface in a non-assembled state; the outer wall of the gun head interface close to the end part is also provided with a limiting plate; the limiting plate can limit the sliding of the fastening nut; the inner wall of the fastening nut is provided with threads; the thread may cooperate with the thread.

Preferably, in the above detachable foam gun, an inclination angle is provided at an end of the gun head interface.

Preferably, in the above-mentioned detachable foam gun, the inner wall of the gun body interface is provided with an elastic latch; the outer wall of the gun head interface is provided with a bulge and an L-shaped dismounting ring; the thickness of the detaching ring is equal to or slightly greater than the height of the protrusion.

Preferably, in the above detachable foam monitor, a first slot is provided at the end of the monitor body interface, and a plurality of first notches are provided on the side wall of the first slot facing the monitor head interface; the end part of the gun head interface is provided with a plurality of first clamping teeth matched with the clamping grooves and the notches.

Drawings

FIG. 1 is a perspective view of an embodiment of the present invention;

FIG. 2 is a perspective view of the embodiment of FIG. 1 at a second angle;

figure 3 is a cross-sectional view of a first embodiment of a detachable connection between the gun head and the gun body;

figure 4 is a cross-sectional view of a second embodiment of the detachable connection between the gun head and the gun body;

figure 5 is a cross-sectional view of a third embodiment of the detachable connection between the gun head and the gun body.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.

Refer now to the drawings. It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea 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, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated. Unless otherwise specified, terms used herein such as "upper", "lower", "left", "right", and the like, which refer to orientations, are all referenced from the perspective of an observer of the drawings.

Reference is first made to fig. 1. Fig. 1 is a perspective view showing an embodiment of the present invention, which includes a gun body 1, a gun seat 2, and a gun head 3. Wherein the gun body 1 comprises a universal interface 11 and a water inlet 12. The gun body 1 is detachably connected with the gun head 3 through a universal interface 11, and the structural details of the connection will be described in detail in connection with fig. 3.

The structure of the gun head 3 is shown in fig. 2, and comprises a low-power gun barrel 31, a housing 32 and a medium-power nozzle 33. Wherein the low-power gun barrel 31 is longer than the medium-power nozzle 33, the length of the outer cover 32 is slightly longer than that of the low-power gun barrel 31, and a medium-power foaming net 39 is arranged on the inner wall of the outer cover 32 and positioned between the medium-power nozzle 33 and the orifice of the low-power gun barrel. The jet flow sprayed out by the medium-time nozzle 33 is mixed with more air after passing through the foaming net, so that a better gun-firing effect is achieved. The foams can be jetted by a low-power gun with larger passive energy and bring a longer spraying distance, so that the launching distance is the same as that of a common low-power gun, and the foaming times are greatly superior to that of the common low-power gun.

In order to make the fire monitor have more suitable scenes, the utility model discloses an in the preferred embodiment, interface 11 between the big gun body 1 and the big gun head 3 adopts detachable design, the structure is shown in fig. 3. Fig. 3 is an enlarged sectional view of the detachable connection structure. The reference number 11 indicates the universal interface of the gun body, on the outer wall of which there are provided threads 45. The fastening nut 41 is fitted over the outer wall of the mouthpiece 34 of the gun head 3, and in a non-assembled state, it can slide along the outer wall of the mouthpiece 34 in the left-right direction. The gun head interface 34 is further provided with a limit plate 35 on the outer wall near the end. In the position of fig. 3, the right-hand protrusion in the nut 41 is blocked by the limit plate 42 and can no longer slide further to the left. The inner wall of the nut 41 is provided with threads which cooperate with the thread 45. A sealing groove 43 is arranged on the outer wall of the interface 34 and between the limiting plate and the end part, and an annular sealing ring is arranged in the groove. Alternatively, the sealing groove may also be provided on the inner wall of the universal interface 11. Preferably, the end of the interface 34 is also provided with a bevel 44.

During the assembly, insert the interface 34 of big gun head 3 in general interface 11 earlier, fastening nut 41's slip setting can guarantee that in the insertion process, nut 41 can not block operating personnel's sight, convenient operation. According to a preferred embodiment, the inclination 44 is such as to allow the operator to insert the interface 34 of the gun head 3 into the universal interface 11 more easily and quickly. After the interface 34 is inserted into the universal interface 11, the fastening nut 41 is moved leftward and rotated to screw the thread 45 into the thread on the outer wall of the gun body 1, the gun head 3 is fixed on the gun body 1 under the combined action of the nut 41, the thread and the limiting plate 42, and the gun head 3 and the universal interface 11 are sealed in a water-tight manner due to the action of the sealing ring.

Regarding the connection between the gun head 3 and the universal interface 11 of the gun body 1, the present invention further provides a second embodiment as shown in fig. 4. The inner wall of the universal interface 11 is provided with a groove 13 and an elastic latch 14, and a sealing ring is arranged in the groove 13. The outer wall of the end of the gun head interface 34 is provided with a bulge 36 and an L-shaped dismounting ring 37, and the thickness of the dismounting ring 37 is equal to or slightly larger than the height of the bulge 36. When installed, the nosepiece 3 is pushed leftwardly into the universal interface 11, with the resilient latch 14 biased upwardly. The gun head 3 is continuously pushed until the elastic latch 14 passes the rightmost side of the bulge 36, the latch 14 resets, so that the gun head 3 is locked, and a sealing ring is arranged at the interface of the gun head 3 to realize water sealing. When the gun is disassembled, the disassembling ring 37 is pushed leftwards, the elastic latch 14 is upwards biased by the horizontal part of the disassembling ring 37, so that the protrusion 36 is unlocked, and the gun head 3 is pulled rightwards at the moment, so that the disassembling can be completed.

Regarding the connection between the gun head 3 and the universal interface 11, the present invention further provides a third embodiment as shown in fig. 5. The end part of the universal interface 11 is provided with a clamping groove 13, and the side wall of the clamping groove 13 facing the gun head is provided with a plurality of notches 14. The interface 34 of the gun head 3 is provided with a plurality of latch teeth 38 which are matched with the latch grooves 11 and the notches 14. During installation, the latch 38 is inserted into the notch 14, then the gun head 3 is rotated in the direction A in the drawing, and the latch 38 slides into the slot 13 to complete locking; when the gun head 3 is disassembled, the gun head is rotated along the direction A, the latch 38 is taken out from the notch 14, and the disassembly is completed. Preferably, as in this example, the end of the gun body 1 is also provided with a latch 15, and the end of the gun head 3 can be provided with a slot and a notch similar to the end of the gun body 1, so that after installation, the latch of the gun head 3 is engaged with the slot of the universal interface 11, and simultaneously, the latch of the universal interface 11 is engaged with the slot of the gun head 3, so that the locking is more reliable.

It should be noted that, in the above three interface modes, the positions of the universal interface and the gun head interface may be interchanged, for example, in the first connection mode, the fastening nut 41 may be disposed at the end of the universal interface 1; in the second connection mode, the inner wall of the gun head interface 34 is replaced by a bayonet. Such interchange should be considered as an equivalent to the preferred embodiment described above.

To sum up, the utility model discloses for current fire control foam big and the long advantage of low power big gun range of medium-time big gun foaming multiple has been combined, especially according to preferred embodiment, the big gun head can conveniently be dismantled and change to can conveniently change different gun heads and adapt to different scene of putting out a fire.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Those skilled in the art can modify or change the above-described embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can 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 (6)

1. A detachable foam cannon, which is characterized by comprising:

the gun body is arranged on the gun seat, and the gun head is connected to the gun body;

the gun head comprises a low-power gun barrel, an outer cover and a medium-power nozzle, and the low-power gun barrel is longer than the medium-power nozzle; the outer cover is longer than the low-power gun barrel;

and a medium-power foaming net is arranged between the low-power gun nozzle and the medium-power nozzle on the inner wall of the outer cover.

2. The removable foam monitor of claim 1, wherein the monitor head and the monitor body are removably connected.

3. The removable foam monitor of claim 2, wherein in said removable connection, threads are provided on the outer wall of the interface of the monitor body; the outer wall of the end part of the gun head interface is sleeved with a fastening nut, and the fastening nut can slide along the outer wall of the end part of the gun head interface in a non-assembled state; the outer wall of the gun head interface close to the end part is also provided with a limiting plate; the limiting plate can limit the sliding of the fastening nut; the inner wall of the fastening nut is provided with threads; the thread may cooperate with the thread.

4. The removable foam monitor of claim 3, wherein the end of the monitor head interface is angled.

5. The removable foam cannon of claim 2, wherein the inner wall of the cannon body interface is provided with elastic latch teeth; the outer wall of the gun head interface is provided with a bulge and an L-shaped dismounting ring; the thickness of the detaching ring is equal to or slightly greater than the height of the protrusion.

6. The removable foam monitor of claim 2, wherein the end of the monitor body interface is provided with a first slot, and a plurality of first notches are formed in the side wall of the first slot facing the monitor head interface; the end part of the gun head interface is provided with a plurality of first clamping teeth matched with the clamping grooves and the notches.

Images