Anti-clogging foam fire extinguishing agent nozzle

Abstract

The application relates to the technical field of fire extinguishing agent nozzles, in particular to a foam fire extinguishing agent nozzle capable of preventing blockage, which comprises a spraying pipe, the inner wall of the spraying pipe is fixedly connected with a diffusion sheet, a plurality of diffusion holes are formed in the diffusion sheet, a movable ring is slidably connected to the spraying pipe, one side of the movable ring is fixedly connected with a mounting seat, the inner wall of the mounting seat is rotatably connected with a turnover block, the lower side of the turnover block is fixedly connected with a sealing plate, and a plurality of dredging rods matched with the diffusion holes are arranged on one side of the sealing plate. The dredging component composed of the movable ring, the mounting seat, the turnover block, the sealing plate and the dredging rods can be operated to push the dredging rods into the diffusion holes to remove various impurities and residual foam which may block the diffusion holes, so that the probability of affecting normal spraying of the foam fire extinguishing agent due to blockage is effectively reduced, and the fire extinguishing work can be smoothly carried out.

Description

Technical Field

[0001] This application relates to the technical field of fire extinguishing agent nozzles, and in particular to an anti-clogging foam fire extinguishing agent nozzle. Background Technology

[0002] Foam extinguishing agent nozzles are an important component of fire extinguishing systems. They are devices used to spray foam extinguishing agents at fire scenes in a specific form, angle, and coverage area. Typically, nozzles include diffusers and orifices, which allow the extinguishing agent to be properly dispersed and refined as it passes through the nozzle. Then, it is sprayed from the nozzle outlet end to the target area according to design requirements, forming an effective foam coverage layer to achieve the purposes of extinguishing fire, isolating oxygen, cooling, inhibiting the spread of fire, and suppressing fire.

[0003] A search revealed Chinese patent application CN202321479392.5, which discloses an anti-clogging foam extinguishing agent nozzle. The nozzle includes a nozzle body with a foam dispersion cover fixed to its front end. A rotating shaft is coaxially fixed to the foam dispersion cover, penetrating the cover and having a first scraper and a second scraper fixedly mounted thereon. The first and second scrapers contact opposite sides of the foam dispersion cover. A support shaft extends through the top of the nozzle body, with a first bevel gear fixedly mounted on it. A second bevel gear is fixedly mounted near one end of the rotating shaft. Rotating the rotating shaft drives the support shaft, which in turn drives the first bevel gear, which in turn drives the second bevel gear, which in turn drives the rotating shaft. This rotating shaft, in turn, drives the first and second scrapers, which clean residual foam from the surface of the foam dispersion cover. This cleaning operation can be performed after use or when the foam dispersion cover becomes clogged.

[0004] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: Although the existing technologies can clean residual foam from the foam dispersing cover using a scraper, and the tube plate can remove most of the impurities adhering to the surface and foam that is about to solidify or has begun to solidify, a small amount of foam may still remain at the edge of the holes or in relatively hidden places inside the holes after the scraper has passed. This residual foam may further solidify in the holes, thereby affecting the normal foaming effect of the nozzle and potentially causing blockages to occur again. Furthermore, in some outdoor environments or open spaces, insects may enter the nozzle through the holes on the foam dispersing cover because they are looking for a place to live or are attracted by the scent emitted by the nozzle. Once an insect enters the nozzle, it may get stuck in the hole or in the internal channel of the nozzle, causing a blockage. Utility Model Content

[0005] To address the problems mentioned in the background section, this application provides an anti-clogging foam extinguishing agent nozzle.

[0006] This application provides an anti-clogging foam fire extinguishing agent nozzle, which adopts the following technical solution: it includes a spray tube, a diffuser plate is fixedly connected to the inner wall of the spray tube, a plurality of diffuser holes are opened on the diffuser plate, a movable ring is slidably fitted on the spray tube, a mounting base is fixedly connected to one side of the movable ring, a flipping block is rotatably fitted to the inner wall of the mounting base, a sealing plate is fixedly connected to the lower side of the flipping block, and a plurality of unblocking rods that cooperate with the diffuser holes are provided on one side of the sealing plate;

[0007] A hollow block is fixedly connected to the spray tube. A connecting block that is fixedly connected to the movable ring is slidably fitted on the inner wall of the hollow block. An adjustment mechanism that cooperates with the connecting block is provided on the hollow block.

[0008] Optionally, the adjustment mechanism includes a movable opening on the upper side of the hollow block and a toggle block that slides on the inner wall of the movable opening and is fixedly connected to the connecting block.

[0009] Optionally, the adjustment mechanism further includes extension blocks fixedly connected to both sides of the actuating block, damping blocks fixedly connected to the lower sides of the two extension blocks, and damping pads fixedly connected to the lower ends of the two damping blocks, wherein the damping pads abut against the spray tube.

[0010] Optionally, a soft pad is fixedly connected to one side of the flipping block, and multiple anti-slip grooves are provided on one side of the soft pad.

[0011] Optionally, a connecting flange is fixedly connected to the other end of the spray tube, and a sealing ring is fixedly connected to one side of the connecting flange.

[0012] Optionally, a support block is fixedly connected to the spray tube, and a hanging ring is rotatably fitted on the support block.

[0013] Optionally, a limiting block is fixedly connected to the lower side of the mounting base, and the limiting block is in contact with the flipping block.

[0014] In summary, this application includes the following beneficial technical effects:

[0015] 1. This utility model, by setting up a dredging component consisting of a movable ring, mounting base, flipping block, sealing plate and dredging rod, can, after use, push the dredging rod into the diffuser hole by operating its corresponding accessories, so as to remove various impurities and residual foam that may clog the diffuser hole in time, effectively reducing the probability of the foam extinguishing agent being affected by blockage and ensuring the smooth progress of fire extinguishing work.

[0016] 2. By setting an adjustment mechanism, this utility model can achieve the following after unblocking: the damping pad and the spray tube are squeezed together, which can limit the movement of the toggle block, so that the connecting block pulls the movable ring and the sealing plate is fixed. The sealing plate can protect one side of the diffuser plate, play a role in preventing dust and insects, further improve the anti-clogging effect, and reduce the possibility of re-clogging during subsequent use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;

[0018] Figure 2 This is an embodiment of the present application. Figure 1 Enlarged structural diagram at point A;

[0019] Figure 3 This is a schematic diagram of the hollow block connection structure in an embodiment of this application;

[0020] Figure 4 This is an embodiment of the present application. Figure 3 Enlarged structural diagram at point B;

[0021] Figure 5 This is a side-view three-dimensional structural schematic diagram of an embodiment of this application;

[0022] Figure 6 This is a schematic diagram of the three-dimensional connection of the spray tube in the embodiments of this application.

[0023] Reference numerals: 1. Spray tube; 2. Diffuser plate; 3. Diffuser hole; 4. Movable ring; 5. Mounting base; 6. Flip block; 7. Unblocking rod; 8. Hollow block; 9. Connecting block; 10. Adjustment mechanism; 101. Moving port; 102. Actuating block; 103. Extension block; 104. Damping block; 105. Damping pad; 11. Soft pad; 12. Anti-slip groove; 13. Connecting flange; 14. Sealing ring; 15. Support block; 16. Hanging ring; 17. Restricting block; 18. Sealing plate. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0025] This application discloses an anti-clogging foam fire extinguishing agent nozzle. For example... Figure 1 As shown, the device includes a spray tube 1, a diffuser plate 2 fixedly connected to the inner wall of the spray tube 1, a plurality of diffuser holes 3 opened on the diffuser plate 2, a movable ring 4 slidably fitted on the spray tube 1, a mounting base 5 fixedly connected to one side of the movable ring 4, a flipping block 6 rotatably fitted to the inner wall of the mounting base 5, a sealing plate 18 fixedly connected to the lower side of the flipping block 6, and a plurality of unblocking rods 7 that cooperate with the diffuser holes 3 on one side of the sealing plate 18.

[0026] Please see Figure 4 A soft pad 11 is fixedly connected to one side of the flip block 6. Multiple anti-slip grooves 12 are provided on one side of the soft pad 11. When the flip block 6 is operated, the soft pad 11 can be pressed with fingers. The anti-slip grooves 12 on the soft pad 11 can be used to increase the friction between the soft pad 11 and objects in contact with fingers or other objects during operation.

[0027] Please see Figure 5 The other end of the spray pipe 1 is fixedly connected to a connecting flange 13, and a sealing ring 14 is fixedly connected to one side of the connecting flange 13. The connecting flange 13 can be easily connected to the corresponding fire extinguisher, and the sealing ring 14 can increase the sealing of the connection.

[0028] Please see Figure 1 A support block 15 is fixedly connected to the spray tube 1, and a hanging ring 16 is rotatably fitted on the support block 15. The hanging ring 16 can be used to suspend the spray tube 1.

[0029] Please see Figure 4 A limiting block 17 is fixedly connected to the lower side of the mounting base 5. The limiting block 17 is in contact with the flipping block 6. After the flipping block 6 is flipped, the limiting block 17 can be used to limit the flipping block 6, so that the flipping block 6 can rotate to the maximum extent to be vertical, so as to realize the cooperation between the unblocking rod 7 on the sealing plate 18 and the diffusion hole 3.

[0030] A hollow block 8 is fixedly connected to the spray tube 1. A connecting block 9, which is fixedly connected to the movable ring 4, slides on the inner wall of the hollow block 8. An adjustment mechanism 10, which cooperates with the connecting block 9, is provided on the hollow block 8.

[0031] Please see Figure 2 and Figure 3 The adjustment mechanism 10 includes a movable port 101 on the upper side of the hollow block 8 and a sliding block 102 that is slidably fitted on the inner wall of the movable port 101 and fixedly connected to the connecting block 9. When it is necessary to clear the nozzle, the operator will manually move the sliding block 102, which will cause the connecting block 9 to move synchronously, thereby causing the movable ring 4 to slide along the spray tube 1. The sliding of the movable ring 4 will cause the connected mounting base 5, the flipping block 6, and the sealing plate 18 to move together, so that the clearing rod 7 on the sealing plate 18 can perform a clearing action on the diffuser hole 3, thereby clearing any blockages that may exist in the diffuser hole 3, ensuring that the foam extinguishing agent can be smoothly sprayed out through the diffuser hole 3, and realizing the normal operation and anti-clogging function of the nozzle.

[0032] Please see Figure 2The adjustment mechanism 10 also includes extension blocks 103 fixedly connected to both sides of the toggle block 102, damping blocks 104 fixedly connected to the lower side of the two extension blocks 103, and damping pads 105 fixedly connected to the lower end of the two damping blocks 104. The damping pads 105 abut against the spray tube 1. When the toggle block 102 is moved, the damping blocks 104 on its extension blocks 103 will move accordingly, and the damping pads 105 will abut against the spray tube 1. When there is no external force pushing, the toggle block 102 will not move easily.

[0033] The implementation principle of the anti-clogging foam fire extinguishing agent nozzle in this application embodiment is as follows: When in use, it is connected to the corresponding fire extinguisher through the connecting flange 13, and then foam is injected into the interior. The foam is dispersed and discharged from multiple diffusion holes 3 on the diffusion plate 2 inside the spray pipe 1 to achieve fire extinguishing.

[0034] After use, the sealing plate 18 can be flipped to contact the limiting block 17, so that the unblocking rod 7 on the sealing plate 18 and the diffusion hole 3 on the diffusion plate 2 are in a matching state. Then, by moving the toggle block 102 in the moving port 101, the connecting block 9 and the movable ring 4 are moved to one side, thereby pushing the unblocking rod 7 into the interior of the diffusion hole 3, and timely removing various impurities, residual foam, etc. that may block the diffusion hole 3. Compared with ordinary nozzles, the probability of the foam extinguishing agent being affected by blockage is greatly reduced, ensuring that the fire extinguishing work can be carried out smoothly.

[0035] After the blockage is cleared, the damping pad 105 and the spray tube 1 are squeezed together, which can restrict the actuating block 102 to a certain extent, so that the connecting block 9 pulls the movable ring 4 and the sealing plate 18 to fix them. The sealing plate 18 can protect one side of the diffuser 2, achieving dust and insect prevention, and further improving the anti-blocking effect.

[0036] When used again, push the toggle block 102 forward a certain distance to separate the unblocking rod 7 from the diffuser hole 3. Rotate the flip block 6 to flip the sealing plate 18. After flipping, pull the toggle block 102 backward to make a large movement, thereby opening the outlet end of the spray tube 1. It can be opened with a push, a turn and a pull, ensuring ease of use.

[0037] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A non-clogging foam extinguishing agent nozzle comprising a spray tube (1), characterized in that: A diffuser plate (2) is fixedly connected to the inner wall of the spray tube (1). A plurality of diffuser holes (3) are provided on the diffuser plate (2). A movable ring (4) is slidably fitted on the spray tube (1). A mounting base (5) is fixedly connected to one side of the movable ring (4). A flipping block (6) is rotatably fitted to the inner wall of the mounting base (5). A sealing plate (18) is fixedly connected to the lower side of the flipping block (6). A plurality of unblocking rods (7) that cooperate with the diffuser holes (3) are provided on one side of the sealing plate (18). A hollow block (8) is fixedly connected to the spray tube (1). A connecting block (9) that is fixedly connected to the movable ring (4) is slidably fitted on the inner wall of the hollow block (8). An adjustment mechanism (10) that cooperates with the connecting block (9) is provided on the hollow block (8).

2. An anti-clogging foam extinguishing agent nozzle according to claim 1, characterized in that: The adjustment mechanism (10) includes a movable opening (101) on the upper side of the hollow block (8) and a toggle block (102) that slides on the inner wall of the movable opening (101) and is fixedly connected to the connecting block (9).

3. An anti-clogging foam extinguishing agent nozzle according to claim 2, characterized in that: The adjustment mechanism (10) further includes an extension block (103) fixedly connected to both sides of the toggle block (102), a damping block (104) fixedly connected to the lower side of the two extension blocks (103), and a damping pad (105) fixedly connected to the lower end of the two damping blocks (104), wherein the damping pad (105) abuts against the spray tube (1).

4. An anti-clogging foam extinguishing agent nozzle according to claim 1, characterized in that: A soft pad (11) is fixedly connected to one side of the flipping block (6), and a plurality of anti-slip grooves (12) are provided on one side of the soft pad (11).

5. An anti-clogging foam extinguishing agent nozzle according to claim 1, characterized in that: The other end of the spray tube (1) is fixedly connected to a connecting flange (13), and a sealing ring (14) is fixedly connected to one side of the connecting flange (13).

6. An anti-clogging foam extinguishing agent nozzle according to claim 1, characterized in that: A support block (15) is fixedly connected to the spray tube (1), and a hanging ring (16) is rotatably fitted on the support block (15).

7. An anti-clogging foam extinguishing agent nozzle according to claim 1, characterized in that: A limiting block (17) is fixedly connected to the lower side of the mounting base (5), and the limiting block (17) is in contact with the flipping block (6).

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