Foam nozzle for foam fire fighting truck

Abstract

The utility model relates to the related technical field of foam nozzles, in particular to a foam nozzle for a foam fire truck, which comprises a water injection column, a foam spraying mechanism is arranged on the upper surface of the water injection column, a mounting mechanism is arranged on the upper surface of the water injection column, and a connecting column is fixedly connected to the lower surface of the water injection column. An external machine is installed, then foam is sprayed out in the using process, then the first bearing rotates through the foam, the first bearing can be better driven to be connected with a rotating column, then the first bearing drives the rotating column to rotate, and then the rotating column rotates to drive fan blades, so that the foam can be rapidly stirred; foam can be quickly discharged, then the rotating column drives the second bearing, and then the fixing column above the second bearing fixes the second bearing and the first bearing below the rotating column.

Description

Technical Field

[0001] The utility model relates to the technical field related to foam nozzles, in particular to a foam nozzle for a foam fire truck. Background Art

[0002] Foam nozzles are mostly installed in various sprinkler, spray, oil spray, sandblasting, spraying and other equipment, playing different roles. They are widely used in environmental protection, coating pretreatment, circuit boards, petroleum, chemical, steel, metallurgy, electronics, cement, food, papermaking, printing, agriculture and animal husbandry and other industries. It can be said that they are everywhere, but the foam nozzles of fire trucks have made great contributions to fire fighting and have been recognized by the public for fire fighting. Therefore, there is a special need for a foam nozzle for foam fire trucks.

[0003] However, the existing foam nozzles used in foam fire trucks do not have the problem of rapid foam production and uneven foam spraying. They are generally sprayed directly through the water injection port. This may affect the speed of fire extinguishing during use and is not conducive to the use of the foam nozzle. Utility Model Content

[0004] The utility model aims to provide a foam nozzle for a foam fire truck to solve the problem raised in the above background technology that the existing foam nozzles for foam fire trucks do not have the function of quickly producing foam and the foam spraying amount is uneven. Generally, the foam is sprayed directly through a water injection port, which may affect the speed of fire extinguishing during use and is not conducive to the use of the foam nozzle.

[0005] To achieve the above object, the utility model provides the following technical solution: a foam nozzle for a foam fire truck, comprising a water injection column, a foam spraying mechanism is arranged on the upper surface of the water injection column, a mounting mechanism is arranged on the upper surface of the water injection column, and a connecting column is fixedly installed on the lower surface of the water injection column;

[0006] The foam spray mechanism includes a first bearing, a rotating column, a fan blade, a second bearing and a fixed column. The upper surface of the water injection column is fixedly connected to the first bearing, the upper surface of the first bearing is installed with a rotating column, the outer surface of the rotating column is fixedly connected to the fan blade, the upper surface of the rotating column is installed with a second bearing, and the upper surface of the second bearing is fixedly connected to the fixed column.

[0007] Preferably, the mounting mechanism comprises a raising ring, a threaded concave column, a threaded convex column and a nozzle shell, the water injection column is fixedly connected to the top of the raising ring, the upper surface of the raising ring is fixedly connected to the threaded concave column, the outer surface of the threaded concave column is snap-connected to the threaded convex column, and the outer surface of the threaded convex column is fixedly connected to the nozzle shell.

[0008] Preferably, the nozzle shell fits tightly with the threaded boss, and the threaded boss is made of metal.

[0009] Preferably, the inner wall size of the nozzle shell is consistent with the outer wall size of the heightening ring, and the material of the nozzle shell is metal.

[0010] Preferably, the inner wall size of the threaded protrusion is consistent with the outer wall size of the threaded concave column, and the material of the threaded concave column is metal.

[0011] Preferably, the fixing column is fixed to the outside of the nozzle housing, and the material of the fixing column is metal.

[0012] Preferably, the first bearing and the second bearing are both connected to the rotating column bearing.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the foam nozzle for a foam fire truck is installed on an external machine, and then during use, foam is sprayed out, and then the foam causes the first bearing to rotate, which can better drive the connection between the first bearing and the rotating column, and then the first bearing drives the rotating column to rotate, and then the rotation of the rotating column drives the fan blades, which can quickly stir the foam and produce foam quickly, and then the rotating column drives the second bearing, and then the fixed column above the second bearing fixes the second bearing and the first bearing under the rotating column. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the foam spraying mechanism of the utility model;

[0016] Figure 3 This is a schematic diagram of the installation mechanism structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure in which the nozzle shell and the fixing column cooperate with each other in the utility model.

[0018] In the figure: 1. water injection column; 2. foam spray mechanism; 201. first bearing; 202. rotating column; 203. fan blade; 204. second bearing; 205. fixed column; 3. installation mechanism; 301. heightening ring; 302. threaded concave column; 303. threaded convex column; 304. nozzle shell; 4. connecting column. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 The utility model provides a technical solution: a foam nozzle for a foam fire truck, comprising a water injection column 1, a foam spraying mechanism 2 is arranged on the upper surface of the water injection column 1, a mounting mechanism 3 is arranged on the upper surface of the water injection column 1, and a connecting column 4 is fixedly installed on the lower surface of the water injection column 1;

[0021] The foaming mechanism 2 includes a first bearing 201, a rotating column 202, a fan blade 203, a second bearing 204 and a fixed column 205. The upper surface of the water injection column 1 is fixedly connected with the first bearing 201, the upper surface of the first bearing 201 is installed with a rotating column 202, the outer surface of the rotating column 202 is fixedly connected with the fan blade 203, the upper surface of the rotating column 202 is installed with a second bearing 204, and the upper surface of the second bearing 204 is fixedly connected with the fixed column 205. Through the arrangement of the first bearing 201, the rotating column 202, the fan blade 203, the second bearing 204 and the fixed column 205, the external machine is first installed, and then During use, foam is sprayed out, and then the foam causes the first bearing 201 to rotate, and then the first bearing 201 drives the rotating column 202 to rotate, and then the rotation of the rotating column 202 drives the fan blades 203, so that the foam can be quickly stirred and foam can be produced quickly, and then the rotating column 202 drives the second bearing 204, and then the fixing column 205 above the second bearing 204 fixes the second bearing 204 and the first bearing 201 under the rotating column 202, so that the nozzle shell 304 can be better fixed, and the first bearing 201 connected to the second bearing 204 and the rotating column 202 will not fall off.

[0022] Furthermore, the mounting mechanism 3 includes a heightening ring 301, a threaded recessed column 302, a threaded protrusion 303 and a nozzle shell 304. The heightening ring 301 is fixedly connected to the top of the water injection column 1, the upper surface of the heightening ring 301 is fixedly connected to the threaded recessed column 302, the outer surface of the threaded recessed column 302 is snap-connected with the threaded protrusion 303, and the outer surface of the threaded protrusion 303 is fixedly connected to the nozzle shell 304. Through the arrangement of the heightening ring 301, the threaded recessed column 302, the threaded protrusion 303 and the nozzle shell 304, before use, the heightening ring 301 fixes the threaded recessed column 302, and then after the threaded recessed column 302 is fixed, the threaded protrusion 303 on the inner side of the nozzle shell 304 is threadedly connected, which can better complete the installation of the nozzle shell 304 and is also convenient for replacing the nozzle shell 304.

[0023] Furthermore, the nozzle shell 304 fits tightly with the threaded boss 303 , and the threaded boss 303 is made of metal. Through the arrangement of the nozzle shell 304 , the threaded boss 303 can be better threadedly connected.

[0024] Furthermore, the inner wall size of the nozzle shell 304 is consistent with the outer wall size of the heightening ring 301, and the material of the nozzle shell 304 is metal. Through the setting of the nozzle shell 304, better sealing can be achieved.

[0025] Furthermore, the inner wall size of the threaded protrusion 303 is consistent with the outer wall size of the threaded recessed column 302 . The threaded recessed column 302 is made of metal. Through the setting of the threaded recessed column 302 , the threaded protrusion 303 can be better sealed.

[0026] Furthermore, the fixing column 205 is fixed to the outside of the nozzle housing 304 . The material of the fixing column 205 is metal. By setting the fixing column 205 , the nozzle housing 304 can be better fixed.

[0027] Furthermore, the first bearing 201 and the second bearing 204 are both connected to the rotating column 202. Through the arrangement of the first bearing 201, the foam can be sprayed out more quickly.

[0028] Working principle: first install the external machine, then during use, foam is sprayed out, and then the foam causes the first bearing 201 to rotate, and then the first bearing 201 drives the rotating column 202 to rotate, and then the rotation of the rotating column 202 drives the fan blade 203, and then the rotating column 202 drives the second bearing 204, and then the fixing column 205 above the second bearing 204 fixes the second bearing 204 and the first bearing 201 under the rotating column 202, and then before use, the raising ring 301 fixes the threaded recessed column 302, and finally after the threaded recessed column 302 is fixed, the threaded protrusion 303 on the inner side of the nozzle shell 304 is threadedly connected, which can be used to install the nozzle shell 304 and also facilitate the replacement of the nozzle shell 304.

[0029] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foam nozzle for a foam fire truck, comprising a water injection column (1), characterized in that: The upper surface of the water injection column (1) is provided with a foaming mechanism (2), the upper surface of the water injection column (1) is provided with a mounting mechanism (3), and the lower surface of the water injection column (1) is fixedly mounted with a connecting column (4); The foam spraying mechanism (2) comprises a first bearing (201), a rotating column (202), a fan blade (203), a second bearing (204) and a fixed column (205); the upper surface of the water injection column (1) is fixedly connected to the first bearing (201); the upper surface of the first bearing (201) is mounted with the rotating column (202); the outer surface of the rotating column (202) is fixedly connected to the fan blade (203); the upper surface of the rotating column (202) is mounted with the second bearing (204); and the upper surface of the second bearing (204) is fixedly connected to the fixed column (205).

2. A foam nozzle for a foam fire truck according to claim 1, characterized in that: The mounting mechanism (3) comprises a heightening ring (301), a threaded concave column (302), a threaded convex column (303) and a nozzle shell (304); the heightening ring (301) is fixedly connected to the top of the water injection column (1); the threaded concave column (302) is fixedly connected to the top surface of the heightening ring (301); the threaded convex column (303) is snap-connected to the outer surface of the threaded concave column (302); and the nozzle shell (304) is fixedly connected to the outer surface of the threaded convex column (303).

3. A foam nozzle for a foam fire truck according to claim 2, characterized in that: The nozzle shell (304) is tightly fitted with the threaded boss (303), and the threaded boss (303) is made of metal.

4. The foam nozzle for a foam fire truck according to claim 2, characterized in that: The inner wall size of the nozzle shell (304) matches the outer wall size of the heightening ring (301), and the material of the nozzle shell (304) is metal.

5. The foam nozzle for a foam fire truck according to claim 2, characterized in that: The inner wall size of the threaded protrusion (303) matches the outer wall size of the threaded concave column (302), and the threaded concave column (302) is made of metal.

6. The foam nozzle for a foam fire truck according to claim 1, characterized in that: The fixing column (205) is fixed on the outside of the nozzle housing (304), and the material of the fixing column (205) is metal.

7. The foam nozzle for a foam fire truck according to claim 1, characterized in that: The first bearing (201) and the second bearing (204) are both connected to the bearing of the rotating column (202).

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