Three-in-one multi-purpose cannon head structure

Abstract

The utility model relates to the field of cannon head structures, and discloses a one-to-three multipurpose cannon head structure which comprises a water inlet, the rear end of the water inlet is fixedly connected with a flow dividing bin, the end, away from the water inlet, of the flow dividing bin is fixedly connected with a connecting pipe, and air inlet devices are arranged at the upper end and the lower end of the connecting pipe. A water outlet is fixedly connected to the end, away from the flow dividing bin, of the connecting pipe, a turbulent flow device is arranged on the inner surface of the connecting pipe, the air inlet device comprises a branch pipe, a one-way valve is fixedly connected to the lower end of the inner surface of the branch pipe, and a connecting rod is fixedly connected to the inner surface of the branch pipe. According to the utility model, through the arrangement of the filter screen, the connecting rod, the impeller, the rotating shaft, the brush rod, the branch pipes and the one-way valves, the entering rate of impurities and dust in air can be reduced when air enters the connecting pipes, and meanwhile, the entering amount of air can be increased through the additionally arranged one-to-three connecting pipes and the multiple groups of branch pipes; and the contact amount between the foam extinguishing agent and air is increased.

Description

Technical Field

[0001] The utility model relates to the field of gun heads, in particular to a one-to-three multi-purpose gun head structure. Background Art

[0002] Fire water monitors mainly refer to equipment that can foam and spray a mixture of water-based film-forming foam fire extinguishing agent and water. They are often used in high-rise fire extinguishing operations. Because the water released by the foam layer can form a layer of water film with good sealing properties on the surface of the fuel, it is widely used by people.

[0003] After searching, Chinese patent publication number CN219595713U discloses an intelligent fire water monitor, comprising a base, and also including: a horizontal automatic rotation mechanism, the horizontal automatic rotation mechanism being arranged on the top surface of the base for self-rotation horizontally; a longitudinal automatic rotation mechanism, the longitudinal automatic rotation mechanism being arranged in the middle of the top surface of the horizontal automatic rotation mechanism for self-rotation longitudinally; a water pipe, the water pipe being plugged into one side of the longitudinal automatic rotation mechanism; a water spray head, the water spray head being connected to the output end of the water pipe via a fire joint mechanism; and a control switch group, the control switch group being arranged on one side of the top surface of the base for controlling the operation of the horizontal automatic rotation mechanism and the longitudinal automatic rotation mechanism. This utility model can facilitate firefighters to adjust the direction of the water spray head, which not only facilitates firefighters' operation, but also improves the intelligence and convenience of using the fire water monitor.

[0004] However, in actual use, the sprayed foam fire extinguishing agent often requires a large air intake volume to ensure the formation of a fine bubble layer to achieve a fire extinguishing effect. Since the device has a straight cylindrical structure, its internal space is limited, so the water-forming foam fire extinguishing agent has a small contact area with the air and a small collision area, which makes the overall foaming rate of the water-forming foam fire extinguishing agent not high. Therefore, a one-to-three multi-purpose gun head structure is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a one-to-three multi-purpose gun head structure, which aims to improve the problem that the straight-cylinder high-pressure water cannon in the existing technology has a limited internal space, resulting in a small contact area between the water film-forming foam fire extinguishing agent and the air.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a one-to-three multi-purpose gun head structure, comprising a water inlet, a diversion chamber fixedly connected to the rear end of the water inlet, a connecting pipe fixedly connected to the end of the diversion chamber away from the water inlet, an air intake device provided at the upper and lower ends of the connecting pipe, a drain port fixedly connected to the end of the connecting pipe away from the diversion chamber, and a flow disturbing device provided on the inner surface of the connecting pipe;

[0007] The air intake device includes a branch pipe, a one-way valve is fixedly connected to the lower end of the inner surface of the branch pipe, a connecting rod is fixedly connected to the inner surface of the branch pipe, the end of the connecting rod away from the branch pipe is rotatably connected to a rotating shaft, an impeller is fixedly connected to the outer arc surface of the rotating shaft, a filter is rotatably connected to the outer arc surface of the rotating shaft, and a brush rod is fixedly connected to the upper part of the outer arc surface of the rotating shaft.

[0008] As a further description of the above technical solution:

[0009] The spoiler device includes a rotating block, a spoiler is fixedly connected to the inner arc surface of the rotating block, a damping spring is fixedly connected to the inner arc surface of the connecting pipe, and the damping block is fixedly connected to the end of the damping spring away from the connecting pipe.

[0010] As a further description of the above technical solution:

[0011] The diversion chamber is provided with three groups of threaded through grooves at one end away from the water inlet. The interior of the diversion chamber is configured to be hollow. The middle diameter of the connecting pipe is smaller than the diameters at both ends.

[0012] As a further description of the above technical solution:

[0013] The middle and upper ends of the connecting pipe are both provided with through holes, and the front and rear ends of the connecting pipe are both provided with thread grooves.

[0014] As a further description of the above technical solution:

[0015] The outer surface of the branch pipe is fixedly connected to the connecting pipe, the air intake direction of the one-way valve is one-way to the connecting pipe, and a bearing is provided between the connecting rod and the rotating shaft.

[0016] As a further description of the above technical solution:

[0017] The outer arc surface of the impeller is provided with multiple groups of inclined arc blades, the outer arc surface of the filter is fixedly connected to the branch pipe, and the end of the brush rod close to the filter is provided with multiple groups of bristles.

[0018] As a further description of the above technical solution:

[0019] The outer arc surface of the rotating block is slidably connected to the connecting pipe, the inner arc surface of the connecting pipe is provided with an annular sliding groove, and the outer arc surface of the rotating block is provided with multiple groups of hemispherical grooves.

[0020] As a further description of the above technical solution:

[0021] A plurality of cylindrical grooves are arranged on the inner arc surface of the connecting pipe, and a damping block is slidably connected to the inner surface of the connecting pipe.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, the filter screen, connecting rod, impeller, rotating shaft, brush rod, branch pipe and one-way valve are provided to reduce the entry rate of impurities and dust in the air when the gas enters the interior of the connecting pipe. At the same time, the addition of one-to-three connecting pipes and multiple groups of branch pipes can expand the amount of air entering and increase the contact amount between the foam fire extinguishing agent and the air.

[0024] 2. In the present invention, by providing the rotating block, spoiler, damping spring and damping block, the foam content of the sprayed fire extinguishing agent can be increased through the spoiler after the foam fire extinguishing agent is mixed with air, thereby improving the fire extinguishing effect of the sprayed foam fire extinguishing agent. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is an overall schematic diagram of a one-to-three multi-purpose gun head structure proposed by the utility model;

[0026] Figure 2 This is a schematic diagram of the cross section of a branch pipe of a one-to-three multi-purpose gun head structure proposed by the present invention;

[0027] Figure 3 This is a schematic diagram of the cross section of the connecting pipe of a one-to-three multi-purpose gun head structure proposed by the present invention;

[0028] Figure 4 This is a schematic diagram of the connecting pipe cross-section of a one-to-three multi-purpose gun head structure proposed in the utility model.

[0029] Legend:

[0030] 1. Water inlet; 2. Air intake device; 3. Flow disturbing device; 4. Diversion chamber; 5. Connecting pipe; 6. Drain outlet; 201. Filter screen; 202. Connecting rod; 203. Impeller; 204. Rotating shaft; 205. Brush rod; 206. Branch pipe; 207. One-way valve; 301. Rotating block; 302. Spoiler; 303. Damping spring; 304. Damping block. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 1-Figure 2The utility model provides an embodiment: a one-to-three multi-purpose gun head structure, comprising a water inlet 1, a diversion chamber 4 fixedly connected to the rear end of the water inlet 1, a connecting pipe 5 fixedly connected to the end of the diversion chamber 4 away from the water inlet 1, an air intake device 2 is provided at the upper and lower ends of the connecting pipe 5, an end of the connecting pipe 5 away from the diversion chamber 4 is fixedly connected to a drain port 6, and a flow disturbing device 3 is provided on the inner surface of the connecting pipe 5;

[0033] The air intake device 2 includes a branch pipe 206, a one-way valve 207 is fixedly connected to the lower end of the inner surface of the branch pipe 206, a connecting rod 202 is fixedly connected to the inner surface of the branch pipe 206, and the end of the connecting rod 202 away from the branch pipe 206 is rotatably connected to the rotating shaft 204, the outer arc surface of the rotating shaft 204 is fixedly connected to the impeller 203, the outer arc surface of the rotating shaft 204 is rotatably connected to the filter screen 201, and the upper part of the outer arc surface of the rotating shaft 204 is fixedly connected to the brush rod 205.

[0034] The diversion chamber 4 is provided with three sets of threaded grooves at one end away from the water inlet 1, so that it can be connected with the three sets of connecting pipes 5 respectively. The interior of the diversion chamber 4 is set to be hollow. The middle diameter of the connecting pipe 5 is smaller than the diameter of the two ends. Therefore, during the flow of the fire extinguishing agent, the branch pipe 206 will be able to generate suction to attract external air into the inside of the connecting pipe 5. The middle of the connecting pipe 5 is provided with through holes at both ends, so that it can be connected with the branch pipe 206. The front and rear ends of the connecting pipe 5 are provided with threaded grooves. The outer surface of 206 is fixedly connected to the connecting pipe 5, and the air intake direction of the one-way valve 207 is one-way to the connecting pipe 5, so that the fire extinguishing agent inside the connecting pipe 5 will not leak. A bearing is provided between the connecting rod 202 and the rotating shaft 204, and a plurality of groups of inclined arc-shaped blades are provided on the outer arc surface of the impeller 203, so that it can be continuously driven to rotate under the flow of gas. The outer arc surface of the filter screen 201 is fixedly connected to the branch pipe 206, and a plurality of groups of bristles are provided on the end of the brush rod 205 close to the filter screen 201.

[0035] Reference Figure 1 、 Figure 3 as well as Figure 4 The spoiler 3 includes a rotating block 301, a spoiler 302 is fixedly connected to the inner arc surface of the rotating block 301, a damping spring 303 is fixedly connected to the inner arc surface of the connecting pipe 5, and a damping block 304 is fixedly connected to the end of the damping spring 303 away from the connecting pipe 5.

[0036] The outer arc surface of the rotating block 301 is slidingly connected to the connecting tube 5, and the inner arc surface of the connecting tube 5 is provided with an annular sliding groove, so that the rotating block 301 can be accommodated to slide inside it. The outer arc surface of the rotating block 301 is provided with multiple groups of hemispherical grooves, and the inner arc surface of the connecting tube 5 is provided with multiple groups of cylindrical grooves. The inner surface of the connecting tube 5 is slidingly connected with a damping block 304, which is set to be hemispherical, so that during the rotation of the rotating block 301, it can be continuously embedded in the rotating block 301 to change its rotation speed.

[0037] Working principle: When using this device, the water inlet 1 needs to be connected to the water source. At this time, the fire extinguishing agent will move to the inside of the diversion chamber 4 and flow out along the connecting pipe 5 and the drain outlet 6. When the fire extinguishing agent moves to the middle of the connecting pipe 5, since the diameters at both ends are larger than the middle diameter, the outside air will be sucked into the inside of the connecting pipe 5. After the air enters the branch pipe 206, the dust inside it will be blocked by the filter 201, and the air flow will also synchronously drive the impeller 203 to rotate. When the impeller 203 rotates, it will synchronously drive the brush rod 205 to rotate through the rotating shaft 204. When the brush rod 205 rotates, it will synchronously clean the surface of the filter 201 below it to prevent dust from clogging the branch pipe 206 and affecting the air intake efficiency.

[0038] At the same time, when the fire extinguishing agent flows through the connecting pipe 5, the fire extinguishing agent will hit the spoiler 302, thereby increasing the amount of bubble generation. At the same time, the spoiler 302 will be pushed and driven by the contact with the fire extinguishing agent to rotate the rotating block 301, thereby continuously changing the spoiler angle. At the same time, during the rotation of the rotating block 301, the damping block 304 will continuously embed into the hemispherical groove on the outer arc surface of the rotating block 301, thereby further improving the spoiler effect.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A one-to-three multi-purpose gun head structure, comprising a water inlet (1), characterized in that: The rear end of the water inlet (1) is fixedly connected to a diversion chamber (4), the end of the diversion chamber (4) away from the water inlet (1) is fixedly connected to a connecting pipe (5), the upper and lower ends of the connecting pipe (5) are provided with air intake devices (2), the end of the connecting pipe (5) away from the diversion chamber (4) is fixedly connected to a drain outlet (6), and the inner surface of the connecting pipe (5) is provided with a flow disturbing device (3); The air intake device (2) comprises a branch pipe (206), a one-way valve (207) is fixedly connected to the lower end of the inner surface of the branch pipe (206), a connecting rod (202) is fixedly connected to the inner surface of the branch pipe (206), an end of the connecting rod (202) away from the branch pipe (206) is rotatably connected to a rotating shaft (204), an impeller (203) is fixedly connected to the outer arc surface of the rotating shaft (204), a filter screen (201) is rotatably connected to the outer arc surface of the rotating shaft (204), and a brush rod (205) is fixedly connected to the upper portion of the outer arc surface of the rotating shaft (204).

2. The one-to-three multi-purpose gun head structure according to claim 1, characterized in that: The spoiler device (3) comprises a rotating block (301), a spoiler (302) is fixedly connected to the inner arc surface of the rotating block (301), a damping spring (303) is fixedly connected to the inner arc surface of the connecting pipe (5), and a damping block (304) is fixedly connected to the end of the damping spring (303) away from the connecting pipe (5).

3. The one-to-three multi-purpose gun head structure according to claim 1, characterized in that: The diversion chamber (4) is provided with three groups of threaded grooves at one end away from the water inlet (1). The interior of the diversion chamber (4) is configured to be hollow, and the middle diameter of the connecting pipe (5) is smaller than the diameters at both ends.

4. The one-to-three multi-purpose gun head structure according to claim 1, characterized in that: Through holes are provided at both the upper and lower ends of the middle portion of the connecting pipe (5), and thread grooves are provided at both the front and rear ends of the connecting pipe (5).

5. The one-to-three multi-purpose gun head structure according to claim 1, characterized in that: The outer surface of the branch pipe (206) is fixedly connected to the connecting pipe (5), the air intake direction of the one-way valve (207) is one-way to the connecting pipe (5), and a bearing is provided between the connecting rod (202) and the rotating shaft (204).

6. The one-to-three multi-purpose gun head structure according to claim 1, characterized in that: The outer arc surface of the impeller (203) is provided with multiple groups of inclined arc blades, the outer arc surface of the filter (201) is fixedly connected to the branch pipe (206), and the brush rod (205) is provided with multiple groups of bristles at one end close to the filter (201).

7. The one-to-three multi-purpose gun head structure according to claim 2, characterized in that: The outer arc surface of the rotating block (301) is slidably connected to the connecting pipe (5), the inner arc surface of the connecting pipe (5) is provided with an annular sliding groove, and the outer arc surface of the rotating block (301) is provided with multiple groups of hemispherical grooves.

8. The one-to-three multi-purpose gun head structure according to claim 2, characterized in that: A plurality of groups of cylindrical grooves are provided on the inner arc surface of the connecting tube (5), and a damping block (304) is slidably connected to the inner surface of the connecting tube (5).

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