Improved fire hose nozzle

Abstract

The utility model relates to fire water gun head technical field, and disclose an improved fire water gun head, including water gun head main part, water gun head main part one end is provided with the connecting pipe, the water gun head main part inside channel is provided with the filter screen, the connecting pipe inside is provided with cleaning assembly, the cleaning assembly includes the scraper bar among them, the scraper bar rotation prevents the filter screen water inlet end surface on the impurity particle and blocks the filter screen, be provided with the rotation ring block in the connecting pipe dials the tooth block, be provided with the gear ring block on the rotation ring block, dial tooth block drives the rotation ring block rotation through the gear ring block, the cleaning assembly that the utility model sets up inside the connecting pipe contains the scraper bar, drives the rotation ring block rotation through dial tooth block, further drive the scraper bar rotation connected with the rotation ring block, can prevent the filter screen water inlet end surface on the impurity particle and blocks the filter screen, guarantees the unobstructed of water flow.

Description

Technical Field

[0001] This utility model relates to the field of fire nozzle technology, specifically an improved fire nozzle. Background Technology

[0002] Fire hose nozzles are water jetting tools used for fire extinguishing. When connected to a fire hose, they spray a dense and powerful stream of water, which has advantages such as long range and large water volume. According to different jet forms and characteristics, they can be divided into straight stream nozzles, spray nozzles, and multi-purpose nozzles, among which the most commonly used nozzles are straight stream nozzles and spray nozzles.

[0003] Traditional fire hose nozzles have revealed numerous problems in practical use. Firstly, when the water source for firefighting often contains impurities, although ordinary hose nozzles may have internal filters, they lack an effective cleaning mechanism. When water flows through, impurity particles easily adhere to and accumulate on the inlet surface of the filter screen. Over time, this gradually clogs the filter screen, obstructing water flow, reducing water pressure, and significantly affecting the hose nozzle's spraying efficiency and firefighting effect. Utility Model Content

[0004] The purpose of this invention is to provide an improved fire nozzle head to solve the problems mentioned in the background art.

[0005] Technical solution

[0006] This utility model provides the following technical solution: an improved fire nozzle head, including a nozzle head body, a connecting pipe at one end of the nozzle head body, a filter screen in the internal channel of the nozzle head body, a cleaning component inside the connecting pipe, and a scraper rod in the cleaning component, the scraper rod rotating to prevent impurities from clogging the filter screen on the water inlet end face.

[0007] Preferably, the connecting pipe is provided with a paving tooth block and a rotating ring block, and the rotating ring block is provided with a gear ring block, and the paving tooth block drives the rotating ring block to rotate through the gear ring block.

[0008] Preferably, a connecting rod is fixedly installed in the rotating ring block, and one end of the connecting rod is fixedly connected to the scraper rod.

[0009] Preferably, a limiting groove is formed in the main body of the water gun head, and limiting ring blocks are provided around the filter screen, with each limiting ring block corresponding to a limiting groove.

[0010] Preferably, one end of the connecting pipe is provided with a protrusion, the protrusion is provided with a second threaded portion, and the water gun head body is provided with a first threaded portion inside, the first threaded portion and the second threaded portion engaging and connecting.

[0011] Preferably, a connecting bolt is provided between the water gun head body and the connecting pipe, a handle is provided on the water gun head body, and a water pipe is provided at the other end of the connecting pipe.

[0012] Beneficial effects

[0013] Compared with the prior art, this utility model provides an improved fire nozzle head, which has the following beneficial effects:

[0014] 1. The improved fire hose nozzle has a cleaning component inside the connecting pipe, which includes a scraper. By moving the toothed block, the rotating ring block is rotated, which in turn drives the scraper connected to the rotating ring block to rotate. This can prevent impurities on the water inlet end of the filter screen from clogging the filter screen and ensure smooth water flow.

[0015] 2. In this improved fire nozzle, the limiting rings around the filter screen correspond one-to-one with the limiting grooves in the nozzle body and are all stepped, which facilitates installation and prevents the filter screen from being deformed or moved by the water flow. The protrusion on the connecting pipe is connected to the nozzle body by thread engagement, and the connecting pipe can fix the limiting rings, further ensuring the stability of the filter screen in the nozzle body. Attached Figure Description

[0016] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0017] Figure 1 This is a front view of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0019] Figure 3 This is a sectional view of the water gun head body and connecting pipe of this utility model separated.

[0020] Figure 4 This is a cross-sectional view of the connecting pipe of this utility model;

[0021] Figure 5 This is a diagram showing the filter screen and water gun head of this utility model separated.

[0022] In the diagram: 1. Water gun head body; 2. Connecting pipe; 3. Water pipe; 4. Connecting bolt; 5. Handle; 6. Actuating gear block; 7. Filter screen; 8. Limiting ring block; 9. Rotating ring block; 10. Gear ring block; 11. Connecting rod; 12. Scraper rod; 13. Protrusion; 14. First threaded part; 15. Second threaded part; 16. Limiting groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example:

[0025] Please see Figures 1-5 An improved fire nozzle includes a nozzle body 1, one end of which is connected to a connecting pipe 2 by bolts. A filter screen 7 is inserted inside the nozzle body 1. A cleaning component is installed inside the connecting pipe 2. The cleaning component includes a scraper 12. The scraper 12 rotates to prevent impurities from clogging the filter screen 7 on the water inlet surface.

[0026] In this embodiment, a toggle tooth block 6 and a rotating ring block 9 are movably installed in the connecting pipe 2. One side of the toggle tooth block 6 is located on the outside of the connecting pipe 2, and the toggle tooth block 6 can be toggleed by hand on the outside of the connecting pipe 2. A gear ring block 10 is fixedly installed on the outer ring side of the rotating ring block 9, and the toggle tooth block 6 drives the rotating ring block 9 to rotate through the gear ring block 10.

[0027] In this embodiment, a connecting rod 11 is fixedly installed at the center of the rotating ring block 9, and one end of the connecting rod 11 is fixedly connected to the scraper rod 12.

[0028] In this embodiment, a limiting groove 16 is provided in the main body 1 of the water gun head, and limiting ring blocks 8 are provided around the filter screen 7. The limiting ring blocks 8 correspond one-to-one with the limiting groove 16, and the number of limiting ring blocks 8 and limiting grooves 16 are equal. Moreover, both the limiting ring blocks 8 and the limiting grooves 16 are provided with a stepped shape, which facilitates the installation of the filter screen 7 in the main body 1 of the water gun head and prevents it from being deformed or moved by the impact of water flow.

[0029] In this embodiment, a protrusion 13 is fixedly installed at one end of the connecting pipe 2. A second threaded portion 15 is provided on the outer surface of the protrusion 13. A first threaded portion 14 is provided on the inner surface of the water gun head body 1. The first threaded portion 14 and the second threaded portion 15 are engaged and connected. The protrusion 13 on the connecting pipe 2 is inserted into the water gun head body 1. The threaded connection between the first threaded portion 14 and the second threaded portion 15 facilitates the water gun head body 1 and the connecting pipe 2 to be connected as one unit.

[0030] In this embodiment, a connecting bolt 4 is provided between the water gun head body 1 and the connecting pipe 2, and a handle 5 is fixedly installed on the outside of the water gun head body 1 to facilitate the user to hold the water gun head body 1. A water pipe 3 is provided at the other end of the connecting pipe 3.

[0031] The filter screen 7 can be easily inserted into the limiting groove 16 of the water gun head body 1 through the limiting ring block 8. The connecting pipe 2 is connected to the water gun head body 1 by threads, and the connecting pipe 2 can fix the limiting ring block 8, thus achieving portable installation and removal of the filter screen 7.

[0032] The working principle of this embodiment is as follows: When in use, the filter screen 7 can be placed into the limiting groove 16 in the water gun head body 1 through the limiting ring block 8. Then, the protrusion 13 on one side of the connecting pipe 2 is inserted into the water gun head body 1. The water gun head body 1 and the connecting pipe 2 are connected together by the meshing connection of the first threaded part 14 and the second threaded part 15. The connecting pipe 2 can also fix the limiting ring block 8 to ensure the stability of the filter screen 7 in the water gun head body 1. At the same time, the filter screen 7 can be easily installed and removed.

[0033] The actuating toothed block 6 is moved, which will drive the rotating ring block 9 to rotate through the gear ring block 10. When the rotating ring block 9 rotates, it can drive the scraper 12 through the connecting rod 11 to clean the water inlet end face of the filter screen 7, so as to prevent the particulate impurities on the filter screen 7 from clogging the water gun head body 1.

Claims

1. An improved fire nozzle head, comprising a nozzle head body (1), characterized in that: The water gun head body (1) is provided with a connecting pipe (2) at one end. The water gun head body (1) is provided with a filter screen (7) in the internal channel. The connecting pipe (2) is provided with a cleaning component. The cleaning component includes a scraper (12). The scraper (12) rotates to prevent impurity particles on the water inlet end face of the filter screen (7) from clogging the filter screen (7).

2. An improved fire hose nozzle according to claim 1, characterized in that: The connecting pipe (2) is provided with a paving tooth block (6) and a rotating ring block (9). A gear ring block (10) is provided on the rotating ring block (9). The paving tooth block (6) drives the rotating ring block (9) to rotate through the gear ring block (10).

3. An improved fire hose nozzle according to claim 2, characterized in that: A connecting rod (11) is fixedly installed in the rotating ring block (9), and one end of the connecting rod (11) is fixedly connected to the scraper rod (12).

4. An improved fire hose nozzle according to claim 1, characterized in that: The water gun head body (1) has a limiting groove (16) and the filter screen (7) is provided with limiting ring blocks (8) around it. The limiting ring blocks (8) correspond one-to-one with the limiting groove (16).

5. An improved fire hose nozzle according to claim 1, characterized in that: One end of the connecting pipe (2) is provided with a protrusion (13), and a second threaded part (15) is provided on the protrusion (13). The water gun head body (1) is provided with a first threaded part (14), and the first threaded part (14) and the second threaded part (15) are engaged and connected.

6. An improved fire hose nozzle according to claim 1, characterized in that: A connecting bolt (4) is provided between the water gun head body (1) and the connecting pipe (2), a handle (5) is provided on the water gun head body (1), and a water pipe (3) is provided at the other end of the connecting pipe (2).

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