Novel ground spraying type foam sprayer

Abstract

The utility model relates to the technical field of sprayers, in particular to a novel ground spraying type foam sprayer which comprises a sprayer body and a limiting sleeve. The spray head body is movably sleeved with the limiting sleeve, the limiting sleeve is fixedly arranged on a deck in an embedded connection mode, and the bottom end of the limiting sleeve is connected with the pipe base. The top end of the nozzle body is a boss, and the boss of the nozzle body is provided with a nozzle cover through a connecting assembly. After a mounting rod is inserted into the nozzle cover, a clamping block is clamped into a circular groove and is clamped with a clamping groove, a screw is in threaded connection with a threaded hole to fix the position of the clamping block, and an inserting block is moved to be clamped with the clamping block and limit the screw at the same time, so that the nozzle cover is further stably mounted on the nozzle main body; during fire extinguishing, high-altitude fire extinguishing and low-altitude fire extinguishing are both considered through the spray head body capable of automatically ascending and descending, the fire extinguishing efficiency is improved, firefighters do not need to get close to extinguish fire, and the danger probability of the firefighters is reduced.

Description

Technical Field

[0001] This utility model relates to the field of nozzle technology, specifically a novel ground spray foam nozzle. Background Technology

[0002] Traditional helicopter (helipad) deck foam fire extinguishing systems consist of foam cannons, foam guns, pressurized foam proportioning devices, fire hydrants, and hoses, and are used to extinguish fuel fires caused by accidents during helicopter take-off and landing on the deck.

[0003] The existing Chinese patent document with announcement number CN204671792U discloses a foam nozzle that adopts a cross-shaped guide plate and an inwardly convex deflector structure, belonging to the field of fire extinguishing. It solves the problems of uneven spraying, short spray distance, lack of dust prevention, inconvenient filter cleaning, and easy leakage when adjusting the angle of conventional foam nozzles. It consists of a deflector, dust plug, guide plate, nozzle, screw plug, O-ring, filter, body, locking nut, and connector. The connector is connected to the body by a straight thread and is secured and sealed by the locking nut. The filter screen is inserted into the countersunk hole of the screw plug and secured by the screw plug. The main body is equipped with three nozzles. The upper nozzle has a cross-shaped guide plate in the channel and an inwardly convex deflector plate on the upper side of the nozzle. The middle nozzle has a straight channel with an upwardly sloping channel and an inwardly convex deflector plate on the upper side of the nozzle. The lower nozzle has a vortex generator embedded in the inlet. Dust plugs are interference-fitted into the nozzles of the three nozzles. When the fire is discharged, the extinguishing medium enters through the connector and filter screen, is divided into three nozzles through the main body, and is discharged after falling off the dust plugs. It is suitable for protecting ship decks, aircraft hangars, and highway tunnels.

[0004] However, in the above-mentioned solutions and existing technologies, when a fire occurs on the helicopter deck, the crew needs to manually operate the foam cannons and foam guns at close range. If the fire spreads during the rescue process, there may be casualties. Therefore, improvements and optimizations are needed. Utility Model Content

[0005] The purpose of this invention is to provide a novel ground-spraying foam nozzle to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a novel ground-spraying foam nozzle, comprising: a nozzle body and a limiting sleeve; the nozzle body is movably fitted inside the limiting sleeve, the limiting sleeve is fixedly embedded in the deck, a pipe seat is connected to the bottom end of the limiting sleeve, and limiting protrusions are symmetrically fixedly arranged on the inner wall of the limiting sleeve, the limiting protrusions being located on the upper and lower sides of the nozzle body; the top of the nozzle body is provided with a boss, an O-ring is fitted on the boss of the nozzle body, and a nozzle cover is provided on the boss of the nozzle body through a connecting assembly, the connecting assembly including an installation rod, a locking block, an insert block, and a threaded sleeve.

[0007] Preferably, the nozzle body has high-altitude nozzles and low-altitude nozzles arranged in a ring at equal intervals on the protrusion. The high-altitude nozzles are inclined in the spray direction, and the low-altitude nozzles are vertically upward and facing the nozzle cover.

[0008] Preferably, the nozzle cover has an arc-shaped peripheral wall, the bottom end of the nozzle cover passes through the limiting protrusion ring and the top end of the nozzle cover is engaged with the limiting protrusion ring, the top end of the nozzle cover has a threaded groove, and the bottom wall of the threaded groove has a circular groove.

[0009] Preferably, the nozzle cover is sleeved with the protruding post on the nozzle body boss, and the mounting rod is fixedly set on the end wall of the protruding post on the nozzle body boss. The end of the mounting rod is provided with a slot, and the bottom wall of the slot is provided with a threaded hole.

[0010] Preferably, the mounting rod is inserted into the nozzle cover and passes through the circular groove. A locking block is provided in the groove and engages with the circular groove. A screw hole is provided on the locking block and a screw is inserted into the screw hole. The screw is threadedly connected to the threaded hole.

[0011] Preferably, the mounting rod has a slot on its side wall, a slider is fixedly installed on the inner wall of the slot, a plug is inserted into the slot, a sliding groove is provided on the plug, the slider is movably engaged in the sliding groove, the plug is engaged with the plug, the threaded sleeve is threaded in the threaded groove, a sleeve frame is rotatably installed on the inner wall of the sleeve, the sleeve frame is inserted into the mounting rod, and the sleeve frame is engaged with the plug.

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

[0013] After the mounting rod is inserted into the nozzle cover, the locking block engages with the circular groove and locks into the groove. The screw is threaded into the threaded hole to fix the position of the locking block. Moving the insert block to lock it into the locking block at the same time limits the screw, further ensuring that the nozzle cover is stably installed on the nozzle body. During fire extinguishing, the automatically lifting nozzle body can cover both high and low altitude fire extinguishing, improving the efficiency of fire extinguishing and reducing the risk of danger to firefighters by eliminating the need for firefighters to approach the fire. Attached Figure Description

[0014] Figure 1 This is a half-sectional view of the structure of this utility model;

[0015] Figure 2 This utility model Figure 1 A magnified view of a portion of the image;

[0016] Figure 3 This is an exploded view of the main structure of the nozzle of this utility model.

[0017] Figure 4 This utility model Figure 3 A magnified view of a portion of the image;

[0018] Figure 5 This is a schematic diagram of the nozzle cover structure connection of this utility model;

[0019] Figure 6 This is a schematic diagram of the threaded sleeve structure connection of this utility model.

[0020] In the diagram: 1. Nozzle body; 2. Limiting sleeve; 3. Pipe seat; 4. Limiting convex ring; 5. O-ring seal; 6. High-altitude nozzle; 7. Low-altitude nozzle; 8. Nozzle cover; 9. Threaded groove; 10. Circular groove; 11. Mounting rod; 12. Slot; 13. Threaded hole; 14. Locking block; 15. Screw hole; 16. Screw; 17. Slider; 18. Insert block; 19. Slide groove; 20. Screw sleeve; 21. Frame. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Please see Figures 1-6 This utility model provides a technical solution: a novel ground-spraying foam nozzle, comprising: a nozzle body 1 and a limiting sleeve 2; the nozzle body 1 is movably fitted inside the limiting sleeve 2, the limiting sleeve 2 is fixedly embedded in the deck, the bottom end of the limiting sleeve 2 is connected to a pipe seat 3, and the inner wall of the limiting sleeve 2 is symmetrically fixed with limiting protrusions 4, which are located on the upper and lower sides of the nozzle body 1; the top of the nozzle body 1 is provided with a boss, and an O-ring seal 5 is fitted on the boss of the nozzle body 1, and a nozzle cover 8 is provided on the boss of the nozzle body 1 through a connecting component.

[0023] The limiting sleeves 2 are evenly distributed and embedded on the deck so that the nozzle body 1 can fully cover the protected area and effectively cool the deck. During fire extinguishing, the pipe seat 3 delivers foam fire extinguishing solvent to the nozzle body 1 and pushes out the nozzle body 1 and nozzle cover 8 so that the nozzle is exposed on the deck. The O-ring seal 5 plays a sealing role. After the fire is extinguished, the nozzle body 1 and nozzle cover 8 automatically fall back under their own gravity without affecting the use of the deck. The limiting protrusion 4 is engaged with the nozzle body 1 to limit the nozzle body 1 and prevent it from falling off.

[0024] The nozzle body 1 has a high-altitude nozzle 6 and a low-altitude nozzle 7 arranged in a ring at equal intervals on the protrusion. The high-altitude nozzle 6 is set at an angle, and the low-altitude nozzle 7 is set vertically upward and facing the nozzle cover 8.

[0025] The nozzle cover 8 has an arc-shaped perimeter. The bottom end of the nozzle cover 8 passes through the limiting protrusion 4 and the top end of the nozzle cover 8 is engaged with the limiting protrusion 4. The top end of the nozzle cover 8 has a threaded groove 9, and the bottom wall of the threaded groove 9 has a circular groove 10.

[0026] During fire extinguishing, the foam extinguishing solvent is sprayed from the high-altitude nozzle 6 on the protrusion of the nozzle body 1 to extinguish the fire in the high-altitude range. The foam extinguishing solvent is sprayed from the low-altitude nozzle 7 on the protrusion of the nozzle body 1 and hits the arc-shaped peripheral wall of the nozzle cover 8 to form a splashing effect, thereby extinguishing the fire in the low-altitude range. The nozzle cover 8 automatically falls back and engages with the limiting protrusion ring 4.

[0027] The nozzle cover 8 is sleeved with the protruding post on the protrusion of the nozzle body 1. The mounting rod 11 is fixedly set on the end wall of the protruding post on the protrusion of the nozzle body 1. The end of the mounting rod 11 is provided with a slot 12, and the bottom wall of the slot 12 is provided with a threaded hole 13.

[0028] The mounting rod 11 is inserted into the nozzle cover 8 and passes through the circular groove 10. A locking block 14 is provided in the locking groove 12. The locking block 14 is locked into the circular groove 10. A screw hole 15 is provided on the locking block 14. A screw 16 is inserted into the screw hole 15 and threadedly connected to the threaded hole 13.

[0029] While the nozzle cover 8 is sleeved with the protruding post on the nozzle body 1, the mounting rod 11 is inserted into the nozzle cover 8. The locking block 14 is locked into the locking groove 12, and the round groove 10 is locked in place. The screw 16 passes through the screw hole 15 and is threaded into the threaded hole 13 to fix the position of the locking block 14, thus fixing the nozzle cover 8 on the nozzle body 1.

[0030] The mounting rod 11 has a slot 17 on its side wall. A slider 18 is fixedly installed on the inner wall of the slot 17. A plug block 19 is inserted into the slot 17. A sliding groove 20 is provided on the plug block 19. The slider 18 is movably engaged in the sliding groove 20. The plug block 19 is engaged with the locking block 14. The screw sleeve 21 is threadedly connected in the threaded groove 9. A sleeve frame 22 is rotatably installed on the inner wall of the screw sleeve 21. The sleeve frame 22 is inserted into the mounting rod 11 and engaged with the plug block 19.

[0031] After the screw 16 is threaded into the threaded hole 13, the insert 19 moves along the slot 17 to engage with the locking block 14, while limiting the screw 16, thereby preventing the screw 16 from loosening and further ensuring the installation stability of the locking block 14. The top of the screw sleeve 21 has a hexagonal slot to facilitate the control of the screw sleeve 21 threaded into the threaded groove 9, so that after the sleeve frame 22 is inserted into the mounting rod 11, it engages with the insert 19 to fix the position of the insert 19.

[0032] Working principle: After the mounting rod 11 is inserted into the nozzle cover 8, the locking block 14 is engaged in the circular groove 10 and the locking groove 12. The screw 16 is threaded into the threaded hole 13 to fix the position of the locking block 14, thus fixing the nozzle cover 8. The moving insert 19 is engaged with the locking block 14, while the limiting screw 16 is stopped. The mounting sleeve 21 is inserted into the mounting rod 11 and then the limiting insert 19 is stopped, further ensuring the installation stability of the nozzle cover 8. During fire extinguishing, the pipe seat 3 delivers foam fire extinguishing to the nozzle body 1. The solvent pushes out the nozzle body 1 and nozzle cover 8, exposing the nozzle to the deck. The foam extinguishing solvent is sprayed from the high-altitude nozzle 6 on the protrusion of the nozzle body 1 for high-altitude fire extinguishing, and the foam extinguishing solvent is sprayed from the low-altitude nozzle 7 on the protrusion of the nozzle body 1 and impacts the arc-shaped peripheral wall of the nozzle cover 8 for low-altitude fire extinguishing. The automatically lifting nozzle body 1 can cover both high-altitude and low-altitude fire extinguishing, improving the efficiency of fire extinguishing and reducing the risk of danger to firefighters by eliminating the need for firefighters to approach the fire.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel ground-spraying foam nozzle, comprising: The nozzle body (1) and the limiting sleeve (2) are movably fitted inside the limiting sleeve (2). The limiting sleeve (2) is fixedly embedded on the deck. The bottom end of the limiting sleeve (2) is connected to the pipe seat (3). The inner wall of the limiting sleeve (2) is symmetrically fixed with limiting protrusions (4). The limiting protrusions (4) are located on the upper and lower sides of the nozzle body (1). The feature is that: the top of the nozzle body (1) is provided with a boss, the boss of the nozzle body (1) is fitted with an O-ring (5), and the boss of the nozzle body (1) is provided with a nozzle cover (8) through a connecting component. The connecting component includes an installation rod (11), a locking block (14), an insert block (19), and a screw sleeve (21).

2. The novel ground-spraying foam nozzle according to claim 1, characterized in that: The nozzle body (1) has a high-altitude nozzle (6) and a low-altitude nozzle (7) arranged in a ring at equal intervals on the protrusion. The high-altitude nozzle (6) is set at an angle, and the low-altitude nozzle (7) is set vertically upward and facing the nozzle cover (8).

3. A novel ground-spraying foam nozzle according to claim 2, characterized in that: The nozzle cover (8) has an arc-shaped peripheral wall. The bottom end of the nozzle cover (8) passes through the limiting protrusion ring (4) and the top end of the nozzle cover (8) is engaged with the limiting protrusion ring (4). The top end of the nozzle cover (8) is provided with a threaded groove (9) and the bottom wall of the threaded groove (9) is provided with a circular groove (10).

4. A novel ground-spraying foam nozzle according to claim 3, characterized in that: The nozzle cover (8) is sleeved with the protruding post on the nozzle body (1). The mounting rod (11) is fixedly set on the end wall of the protruding post on the nozzle body (1). The end of the mounting rod (11) is provided with a slot (12), and the bottom wall of the slot (12) is provided with a threaded hole (13).

5. A novel ground-spraying foam nozzle according to claim 4, characterized in that: The mounting rod (11) is inserted into the nozzle cover (8) and the mounting rod (11) passes through the circular groove (10). A locking block (14) is locked in the slot (12). The locking block (14) is locked in the circular groove (10). A screw hole (15) is opened on the locking block (14). A screw (16) is inserted into the screw hole (15). The screw (16) is threadedly connected to the threaded hole (13).

6. A novel ground-spraying foam nozzle according to claim 5, characterized in that: The mounting rod (11) has a slot (17) on its side wall. A slider (18) is fixedly installed on the inner wall of the slot (17). A plug (19) is inserted into the slot (17). A groove (20) is opened on the plug (19). The slider (18) is movably engaged in the groove (20). The plug (19) is engaged with the locking block (14). The threaded sleeve (21) is threadedly connected in the threaded groove (9). A sleeve frame (22) is rotatably installed on the inner wall of the threaded sleeve (21). The sleeve frame (22) is inserted into the mounting rod (11). The sleeve frame (22) is engaged with the plug (19).

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