Fire-fighting casting with high pressure resistance

Abstract

The utility model discloses a fire-fighting casting with high pressure resistance, and belongs to the field of fire-fighting castings. The fire-fighting casting with the high pressure resistance comprises a gun head, a water spraying opening is formed in one end of the gun head, a mounting base is arranged on the gun head, a fixing block is arranged on the mounting base, the fire-fighting casting further comprises a sliding groove, the sliding groove is formed in the fixing block, a pressure relief hole is formed in the fixing block, the pressure relief hole penetrates through the fixing block and the gun head, and the gun head is arranged in the sliding groove. And a rotary lantern ring is arranged on the fixed block. The fire-fighting gun head solves the problems that when an existing fire-fighting gun head is installed on a water pipe where water flows out, due to the fact that water pressure is high, the gun head can be jacked outwards by water flow with the high flow speed, the gun head is troublesome to install, and fire extinguishing can be delayed if the water flow is closed firstly, then the gun head is installed and then the water flow is opened.

Description

Technical Field

[0001] The utility model relates to the field of fire-fighting castings, in particular to a fire-fighting casting with strong compression resistance. Background Art

[0002] Firefighting is to eliminate hidden dangers, and disaster prevention is a general term for preventing and solving man-made, natural and accidental disasters that people encounter in the process of life, work and study. There are many types of firefighting equipment, among which the firefighting gun head is a more common and commonly used firefighting casting;

[0003] A Chinese patent with publication number CN215136311U discloses a fire-fighting casting with strong pressure resistance, whose structure includes a gun head body, an explosion-proof ring, a connecting ring, a raised ring, a reinforcing rib sheet and a flow-equalizing sheet. The right end of the gun head body is sequentially provided with an explosion-proof ring and a connecting ring, and the gun head body, the explosion-proof ring and the connecting ring are integrally formed. The utility model has the following beneficial effects: by arranging an explosion-proof ring at the right end of the gun head body, a transient pressure protection effect is provided when water is received; a raised ring is arranged on the left outer side of the gun head body to provide a transient pressure protection effect when water is discharged; a plurality of reinforcing rib sheets are arranged and are evenly distributed on the outer surface of the gun head body, and the positions are reasonably arranged to improve the overall pressure balance and the overall axial pressure resistance of the flowing water; a plurality of flow-equalizing sheets are arranged and are evenly distributed on the inner wall of the gun head body to provide a flow-equalizing effect for water flow, reduce the local bearing pressure, and achieve the beneficial effect of greatly improving the pressure resistance by arranging multiple protective components.

[0004] When the fire-fighting gun head of the above patent is installed on a water pipe that is already discharging water, due to the strong water pressure, the fast-flowing water will push the gun head outward, making the installation of the gun head more troublesome. If the water flow is turned off first, the gun head is installed, and then the water flow is turned on again, it may delay the extinguishing of the fire. Utility Model Content

[0005] The utility model aims to provide a fire-fighting casting with strong pressure resistance, wherein a mounting base is provided on the gun head, and a fixing block is provided on the mounting base, a plurality of pressure relief holes are opened on the fixing block, and two slide grooves are provided on the fixing block, a rotating collar is provided on the fixing block, a limit block provided on the rotating collar is limit-connected with the slide groove, a through hole is provided on the rotating collar at a position corresponding to the pressure relief hole, and a rubber sheet is provided on the inner wall of the rotating collar. When the fire-fighting gun head is installed on a water pipe that is discharging water, the rotating collar is twisted to align the through hole with the pressure relief hole, so as to reduce the pressure of the water flow impacting on the inner wall of the gun head, so as to make the installation of the gun head easier. After the installation is completed, the rotating collar is twisted again so that the rubber sheet provided on the inner wall of the rotating collar covers the pressure relief hole, so as to avoid that the flow rate of the water sprayed out of the water spray port of the gun head is affected, thereby solving the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fire-fighting casting with strong pressure resistance, including a gun head, a water spray outlet at one end of the gun head, a mounting base arranged on the gun head, a fixing block arranged on the mounting base, and a slide groove, the slide groove is arranged on the fixing block, a pressure relief hole is arranged on the fixing block, the pressure relief hole runs through the fixing block and the gun head, a rotating ring is arranged on the fixing block, a limiting block is arranged on the inner ring of the rotating ring, the limiting block is connected to the sliding groove for limiting rotation, the rotating ring is provided with a through hole at the position corresponding to the pressure relief hole, and a rubber sheet is arranged on the inner ring of the rotating ring.

[0007] Preferably, a connecting base is provided on the end of the gun head away from the water spray port, and the connecting base is integrally provided with the gun head.

[0008] Preferably, a connecting thread is provided on the outer surface of the connecting base, and the connecting thread and the connecting base are integrally provided.

[0009] Preferably, a guide groove is provided on the inner wall of the gun head, and the guide groove is integrally arranged with the gun head.

[0010] Preferably, a gripping block is provided on the outer surface of the gun head, and the gripping block is integrally provided with the gun head.

[0011] Preferably, the outer surface of the rotating collar is provided with an anti-skid pattern, and the anti-skid pattern and the rotating collar are integrally provided.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model comprises a mounting base arranged on the gun head, a fixing block arranged on the mounting base, a plurality of pressure relief holes opened on the fixing block, two slide grooves arranged on the fixing block, a rotating collar arranged on the fixing block, a limit block arranged on the rotating collar and the slide groove limit connection, a through hole arranged on the rotating collar at a position corresponding to the pressure relief hole, and a rubber sheet arranged on the inner wall of the rotating collar. When the fire-fighting gun head is mounted on a water pipe that is discharging water, the rotating collar is twisted to align the through hole with the pressure relief hole, thereby reducing the impact of water flow on the gun head. The pressure on the inner wall of the head makes it easier to install the gun head. After installation, the rotating ring is twisted to make the rubber sheet arranged on the inner wall of the rotating ring cover the pressure relief hole to avoid the flow rate of water sprayed from the water outlet of the gun head being affected. This effectively avoids the problem that when the existing fire-fighting gun head is installed on a water pipe that is already outflowing water, the water flow with a fast flow rate will push the gun head outward due to the strong water pressure, making the installation of the gun head more troublesome. If the water flow is turned off first, the gun head is installed, and then the water flow is turned on again, the fire extinguishing may be delayed. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 It is a schematic diagram of the overall main structure of the utility model;

[0016] Figure 3 It is a schematic cross-sectional structure diagram of the gun head and the rotating collar of the utility model.

[0017] In the figure: 1. Gun head; 2. Grip block; 3. Water spray nozzle; 4. Guide groove; 5. Mounting base; 6. Fixing block; 7. Slide groove; 8. Pressure relief hole; 9. Connecting base; 10. Connecting thread; 11. Rotating collar; 12. Through hole; 13. Anti-slip pattern; 14. Limit block; 15. Rubber sheet. DETAILED DESCRIPTION

[0018] 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.

[0019] In order to solve the problem in the prior art that when a fire-fighting gun head is installed on a water pipe that is already outflowing water, due to the strong water pressure, the water flow with a fast flow rate will push the gun head outward, making the installation of the gun head more troublesome. If the water flow is turned off first, the gun head is installed, and then the water flow is turned on again, the fire may be put out later. The present embodiment provides the following technical solutions:

[0020] A fire-fighting casting with strong pressure resistance, including a gun head 1, a water spray port 3 is provided at one end of the gun head 1, a mounting base 5 is provided on the gun head 1, a fixing block 6 is provided on the mounting base 5, and a slide groove 7 is provided, the slide groove 7 is provided on the fixing block 6, a pressure relief hole 8 is provided on the fixing block 6, the pressure relief hole 8 passes through the fixing block 6 and the gun head 1, a rotating collar 11 is provided on the fixing block 6, a limited clamping block 14 is provided on the inner ring of the rotating collar 11, and the limited clamping block 14 is connected to the slide groove 7 for limited rotation The rotating collar 11 is provided with a through hole 12 at a position corresponding to the pressure relief hole 8, a rubber sheet 15 is provided on the inner ring of the rotating collar 11, a connecting base 9 is provided on the end of the gun head 1 away from the water spout 3, the connecting base 9 and the gun head 1 are integrally provided, a connecting thread 10 is provided on the outer surface of the connecting base 9, the connecting thread 10 and the connecting base 9 are integrally provided, an anti-slip pattern 13 is provided on the outer surface of the rotating collar 11, and the anti-slip pattern 13 and the rotating collar 11 are integrally provided;

[0021] In this embodiment, when the user needs to connect the gun head 1 with the water pipe, the connecting base 9 is first inserted into the water pipe, and the connecting thread 10 provided on the connecting base 9 is rotated and engaged with the connecting structure on the water pipe. A mounting base 5 is provided on the gun head 1, and a fixing block 6 is provided on the mounting base 5. The fixing block 6 is provided with a plurality of pressure relief holes 8, and two slide grooves 7 are provided on the fixing block 6. A rotating collar 11 is provided on the fixing block 6. The limit block 14 provided on the rotating collar 11 is limit-connected with the slide groove 7, and the rotating collar 11 is provided with a plurality of pressure relief holes 8. A through hole 12 is provided on the ring 11 at a position corresponding to the pressure relief hole 8, and a rubber sheet 15 is provided on the inner wall of the rotating collar 11. When the fire gun head 1 is installed on a water pipe that is discharging water, the rotating collar 11 is twisted to align the through hole 12 with the pressure relief hole 8, thereby reducing the pressure of the water flow impacting the inner wall of the gun head 1, making the installation of the gun head 1 easier. After the installation is completed, the rotating collar 11 is twisted again to make the rubber sheet 15 provided on the inner wall of the rotating collar 11 cover the pressure relief hole 8, thereby preventing the flow rate of the water sprayed out of the water spray port 3 of the gun head 1 from being affected;

[0022] In this embodiment, a guide groove 4 is provided on the inner wall of the gun head 1, and the guide groove 4 is integrally provided with the gun head 1. The setting of the guide groove 4 enables the water flow entering the gun head 1 to be ejected from the water outlet 3 provided on the gun head 1 along the direction of the guide groove 4 when it hits the inner wall of the gun head 1, thereby reducing the force of the water flow impacting the inner wall of the gun head 1;

[0023] In this embodiment, a gripping block 2 is provided on the outer surface of the gun head 1, and the gripping block 2 is integrally provided with the gun head 1;

[0024] Working principle: When the user needs to connect the gun head 1 with the water pipe, first insert the connecting base 9 into the water pipe, and rotate and engage with the connecting structure on the water pipe through the connecting thread 10 provided on the connecting base 9. A mounting base 5 is provided on the gun head 1, and a fixing block 6 is provided on the mounting base 5. The fixing block 6 is provided with a plurality of pressure relief holes 8, and two slide grooves 7 are provided on the fixing block 6. A rotating collar 11 is provided on the fixing block 6. The limit block 14 provided on the rotating collar 11 is limit-connected with the slide groove 7. The rotating collar A through hole 12 is provided on 11 at a position corresponding to the pressure relief hole 8, and a rubber sheet 15 is provided on the inner wall of the rotating collar 11. When the fire gun head 1 is installed on a water pipe that is discharging water, the rotating collar 11 is twisted to align the through hole 12 with the pressure relief hole 8 to reduce the pressure of the water flow impacting the inner wall of the gun head 1, making the installation of the gun head 1 easier. After the installation, the rotating collar 11 is twisted again to make the rubber sheet 15 provided on the inner wall of the rotating collar 11 cover the pressure relief hole 8 to avoid affecting the flow rate of the water sprayed from the water outlet 3 of the gun head 1.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0026] Although 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 fire-fighting casting with strong pressure resistance, comprising a gun head (1), one end of which is provided with a water spray port (3), a mounting base (5) is provided on the gun head (1), and a fixing block (6) is provided on the mounting base (5); Features: The invention also comprises a slide groove (7), wherein the slide groove (7) is provided on the fixed block (6), a pressure relief hole (8) is provided on the fixed block (6), and the pressure relief hole (8) passes through the fixed block (6) and the gun head (1), a rotating collar (11) is provided on the fixed block (6), a limiting block (14) is provided on the inner ring of the rotating collar (11), and the limiting block (14) is connected to the slide groove (7) for limited rotation, a through hole (12) is provided on the rotating collar (11) at a position corresponding to the pressure relief hole (8), and a rubber sheet (15) is provided on the inner ring of the rotating collar (11).

2. A fire-fighting casting with strong pressure resistance according to claim 1, characterized in that: The gun head (1) is provided with a connecting base (9) at one end away from the water spray port (3); the connecting base (9) and the gun head (1) are integrally arranged.

3. A fire-fighting casting with strong pressure resistance according to claim 2, characterized in that: A connecting thread (10) is provided on the outer surface of the connecting base (9), and the connecting thread (10) and the connecting base (9) are integrally provided.

4. A fire-fighting casting with strong pressure resistance according to claim 1, characterized in that: A guide groove (4) is provided on the inner wall of the gun head (1), and the guide groove (4) and the gun head (1) are integrally arranged.

5. A fire-fighting casting with strong pressure resistance according to claim 1, characterized in that: The outer surface of the gun head (1) is provided with a gripping block (2), and the gripping block (2) and the gun head (1) are integrally arranged.

6. A fire-fighting casting with strong pressure resistance according to claim 1, characterized in that: The outer surface of the rotating collar (11) is provided with an anti-skid pattern (13), and the anti-skid pattern (13) and the rotating collar (11) are integrally provided.

Images