Fire-fighting foam spraying system

Abstract

The utility model belongs to the technical field of fire-fighting systems, and particularly relates to a fire-fighting foam spraying system which comprises a base, a pressure pump is assembled on the base, a water supplementing pipe and a control valve are assembled on the pressure pump, a water feeding pipe is fixedly connected to the other end of the control valve, a plurality of hoops are fixedly connected to the side wall of the water feeding pipe, and the hoops are fixedly connected to the side wall of the water feeding pipe. A limiting rod is fixedly connected between every two hoops, a transmission box is arranged on the limiting rods, through holes are formed in the left side wall and the right side wall of the transmission box respectively, the limiting rods penetrate through the through holes, the transmission box is divided into three cavities, and two guide rollers are symmetrically arranged in the positions, close to the middle, of the inner cavities of the transmission box; the two ends of the guide roller are fixedly connected with rotating shafts correspondingly, and the other ends of the rotating shafts are rotationally connected with the transmission box correspondingly. When foam is sprayed, the foam spray head can move in a large range, the foam spraying range is expanded, and the fire extinguishing speed is increased.

Description

Technical Field

[0001] This utility model belongs to the technical field of fire protection systems, and particularly relates to a fire-fighting foam sprinkler system. Background Art

[0002] A fire-fighting foam sprinkler system is a common fire protection facility used for extinguishing fires and controlling fire spread. This system usually consists of components such as pumps, pipes, and sprinkler heads. It can be automatically or manually activated during a fire to spray foam solution onto the fire site. The foam can effectively cover the surface of the burning object, isolate the air, and cool the burning object, thereby achieving the purpose of extinguishing the fire.

[0003] Most of the existing foam sprinkler system nozzles are fixed on the top of the building. When receiving a fire alarm signal, the position where the foam nozzles spray foam is always fixed. The foam can only cover the fire source according to its own flow, which is not convenient for spraying foam over a large area. As a result, the fire extinguishing time is prolonged, and the probability of the fire spreading is increased. Summary of the Utility Model

[0004] The purpose of this utility model is to provide a fire-fighting foam sprinkler system that can move the foam nozzles over a large area when spraying foam, expand the spraying range of the foam, and improve the fire extinguishing speed.

[0005] The technical solution adopted by this utility model is as follows:

[0006] A fire-fighting foam sprinkler system includes a base, on which a pressure pump is assembled. A water supply pipe and a control valve are assembled on the pressure pump. The other end of the control valve is fixedly connected to a water delivery pipe. A number of clamps are fixedly connected to the side wall of the water delivery pipe. A limiting rod is fixedly connected between every two clamps. A transmission box is arranged on the limiting rod. Through holes are respectively opened on the left and right side walls of the transmission box, and the limiting rod passes through the through holes. The transmission box is divided into three cavities. Two guide rollers are symmetrically arranged near the middle of the inner cavity of the transmission box. The two ends of each guide roller are respectively fixedly connected to a rotating shaft, and the other ends of the rotating shafts are respectively rotatably connected to the transmission box. A transmission component is arranged near the upper side of the inner cavity of the transmission box, and a foam nozzle is arranged near the lower side of the inner cavity of the transmission box. One end of the foam nozzle passes through the transmission box and is fixedly connected to a hose, and the other end of the hose is fixedly connected to the water delivery pipe.

[0007] The transmission component includes two first gears. The upper rotating shaft is fixedly connected to the first gear. A second gear is fixedly connected to one of the first gears. A motor is fixedly installed on the top surface of the inner cavity of the transmission box. The output shaft of the motor is fixedly connected to a third gear, and the third gear meshes with the second gear.

[0008] A valve is assembled on the side wall of the hose.

[0009] The bottom surface of the transmission box is not enclosed, and two diversion cylinders are fixedly connected to the bottom surface of the transmission box, and the diversion cylinders are inclined to both sides.

[0010] Rubber pads are fixedly connected to the side walls of the guide rollers, and the limiting rods are located between the rubber pads.

[0011] A limiting ring is fixedly connected to the side wall of the transmission box, and the hose passes through the limiting ring.

[0012] The technical effects achieved by this utility model are as follows:

[0013] A fire-fighting foam spraying system of this utility model, through the mutual cooperation among a pressure pump, a water delivery pipe, a limiting rod, a transmission box, a guide roller and a transmission component, etc., when spraying foam in case of a fire, can synchronously start the motor to drive the foam spray head to move along the trajectory of the limiting rod, spray the foam in a large range, accelerate the extinguishing time of the fire source, avoid the phenomenon of fire situation change, and thus improve its fire extinguishing efficiency. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of an embodiment of this utility model;

[0015] Figure 2 is a partial structural diagram of an embodiment of this utility model;

[0016] Figure 3 is a schematic cross-sectional structural diagram of the transmission box of an embodiment of this utility model;

[0017] Figure 4 is an enlarged view at A in an embodiment of this utility model Figure 3 in.

[0018] In the drawings, the list of components represented by each reference numeral is as follows:

[0019] 1, base; 2, pressure pump; 3, control valve; 4, make-up water pipe; 5, water delivery pipe; 6, clamp; 7, limiting rod; 8, transmission box; 9, through hole; 10, guide roller; 11, first gear; 12, second gear; 13, motor; 14, third gear; 15, hose; 16, foam spray head; 17, valve; 18, diversion cylinder; 19, rubber pad; 20, limiting ring. Specific Embodiments

[0020] In order to make the purpose and advantages of this utility model clearer, the following specifically describes this utility model in conjunction with embodiments. It should be understood that the following text only describes one or several specific implementation manners of this utility model, and does not strictly limit the specific protection scope claimed by this utility model.

[0021] Such as Figures 1-4As shown in the figure, a fire-fighting foam sprinkler system includes a base 1, on which a pressure pump 2 is assembled. A make-up water pipe 4 and a control valve 3 are assembled on the pressure pump 2. The control valve 3 is used as the main valve in the pipeline, which is convenient for use during pipeline maintenance or drills. The other end of the control valve 3 is fixedly connected to a water delivery pipe 5. A number of clamps 6 are fixedly connected to the side wall of the water delivery pipe 5. The clamps 6 can be fixed to the water delivery pipe 5 by bolts. A limiting rod 7 is fixedly connected between every two clamps 6. A transmission box 8 is arranged on the limiting rod 7. Through holes 9 are respectively opened on the left and right side walls of the transmission box 8. The limiting rod 7 passes through the through holes 9. The transmission box 8 is divided into three cavities. Two guide rollers 10 are symmetrically arranged near the middle of the inner cavity of the transmission box 8. The two ends of the guide roller 10 are respectively fixedly connected with a rotating shaft, and the other ends of the rotating shafts are respectively rotationally connected to the transmission box 8. A transmission component is arranged near the upper side of the inner cavity of the transmission box 8. A foam sprinkler 16 is arranged near the lower side of the inner cavity of the transmission box 8. One end of the foam sprinkler 16 passes through the transmission box 8 and is fixedly connected with a hose 15. The other end of the hose 15 is fixedly connected to the water delivery pipe 5.

[0022] Among them, the length of the hose 15 can be selected according to actual needs and the length of the limiting rod 7. Multiple collars can be arranged on the water delivery pipe 5 to limit the hose 15 to prevent the hose 15 from sagging or winding.

[0023] As Figure 3 and Figure 4 shown in the figure, the transmission component includes two first gears 11. The upper rotating shaft is fixedly connected to the first gear 11. A second gear 12 is fixedly connected to one of the first gears 11. A motor 13 is fixedly installed on the top surface of the inner cavity of the transmission box 8. The output shaft of the motor 13 is fixedly connected with a third gear 14. The third gear 14 meshes with the second gear 12.

[0024] A valve 17 is assembled on the side wall of the hose 15. The flow rate from the water delivery pipe 5 to the hose 15 can be controlled through the valve 17, and the valve 17 can be opened to the specified opening degree according to actual fire-fighting needs.

[0025] Among them, a limiting structure can also be arranged between the two clamps 6 according to actual needs to support and limit the transmission box 8 to ensure that the transmission box 8 always moves in a horizontal direction. The setting of the limiting structure is a commonly used structure in the prior art. Therefore, this part will not be described in detail in this solution and is not shown in the figure either.

[0026] As Figure 3 shown in the figure, the bottom surface of the transmission box 8 is not closed. Two diversion cylinders 18 are fixedly connected to the bottom surface of the transmission box 8. The two diversion cylinders 18 are both inclined to both sides. The two diversion cylinders 18 are both distributed outward at an angle of 45°. The position of the foam sprinkler 16 is in the middle of the two diversion cylinders 18. When spraying foam, the two diversion cylinders 18 can evenly divide the flow.

[0027] As Figure 4As shown, rubber pads 19 are fixedly connected to the side walls of the guide rollers 10, and the limiting rods 7 are located between the rubber pads 19. By providing the rubber pads 19, the friction between the guide rollers 10 and the limiting rods 7 can be increased. On the one hand, the transmission efficiency can be ensured, and the power output by the motor 13 will not cause the guide rollers 10 to rotate idly. On the other hand, the hard friction between the guide rollers 10 and the limiting rods 7 can be reduced, avoiding deformation of the limiting rods 7.

[0028] As Figure 3 shown, a limiting ring 20 is fixedly connected to the side wall of the transmission box 8, and the hose 15 passes through the limiting ring 20. It is used to limit the hose 15 so that when one end of the hose 15 follows the movement of the transmission box 8, problems such as pulling, bending, or winding will not occur.

[0029] The working principle of this utility model is as follows: When a fire occurs, the pressure pump 2 operates to deliver the foam liquid into the water supply pipe 5. The foam is ejected from the foam nozzle 16 through the hose 15 to form foam and falls through the guide cylinder 18. At this time, the motor 13 is started. The output shaft of the motor 13 drives the second gear 12 to rotate through the third gear 14. The second gear 12 drives the first gear 11 to rotate. The two first gears 11 mesh to drive the guide rollers 10 to rotate in the reverse direction, thereby driving the entire transmission box 8 and the foam nozzle 16 to move along the trajectory of the limiting rods 7, spraying the foam over a large area, effectively improving the rate of foam covering the fire source, reducing the phenomenon of the fire spreading, and enhancing the fire extinguishing efficiency.

[0030] The above is only the preferred embodiment of this utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of this utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of this utility model. The structures, devices, and operation methods not specifically described and explained in this utility model are implemented according to the conventional means in this field without special instructions and limitations.

Claims

1. A fire-fighting foam sprinkler system, characterized in that: It includes a base (1), a pressure pump (2) is assembled on the base (1), a water replenishing pipe (4) and a control valve (3) are assembled on the pressure pump (2), the other end of the control valve (3) is fixedly connected to a water delivery pipe (5), a plurality of clamps (6) are fixedly connected to the side wall of the water delivery pipe (5), a limiting rod (7) is fixedly connected between every two clamps (6), a transmission box (8) is arranged on the limiting rod (7), through holes (9) are respectively opened on the left and right side walls of the transmission box (8), the limiting rod (7) penetrates through the through holes (9), the transmission box (8) is divided into three cavities, two guide rollers (10) are symmetrically arranged near the middle of the inner cavity of the transmission box (8), the two ends of the guide rollers (10) are respectively fixedly connected with rotating shafts, and the other ends of the rotating shafts are respectively rotatably connected to the transmission box (8). A transmission assembly is arranged near the upper side of the inner cavity of the transmission box (8), a foam spray head (16) is arranged near the lower side of the inner cavity of the transmission box (8), one end of the foam spray head (16) penetrates through the transmission box (8) and is fixedly connected to a hose (15), and the other end of the hose (15) is fixedly connected to the water delivery pipe (5).

2. The fire-fighting foam spray system according to claim 1, characterized in that: The transmission assembly includes two first gears (11), the upper rotating shaft is fixedly connected to the first gear (11), a second gear (12) is fixedly connected to one of the first gears (11), a motor (13) is fixedly installed on the top surface of the inner cavity of the transmission box (8), the output shaft of the motor (13) is fixedly connected to a third gear (14), and the third gear (14) meshes with the second gear (12).

3. A fire fighting foam spray system according to claim 1, characterized in that: A valve (17) is assembled on the side wall of the hose (15).

4. A fire-fighting foam spray system according to claim 1, characterized in that: The bottom surface of the transmission box (8) is not closed, and two diversion cylinders (18) are fixedly connected to the bottom surface of the transmission box (8), and the diversion cylinders (18) are inclined to both sides.

5. A fire foam sprinkler system according to claim 1, characterized in that: Rubber pads (19) are fixedly connected to the side walls of the guide rollers (10), and the limiting rod (7) is located between the rubber pads (19).

6. A fire-fighting foam sprinkler system according to claim 1, characterized in that: A limiting ring (20) is fixedly connected to the side wall of the transmission box (8), and the hose (15) penetrates through the limiting ring (20).

Images