A rapid fire extinguishing device for single-unit combustion testing

Abstract

This utility model relates to the technical field of fire extinguishing devices and discloses a rapid fire extinguishing device for single-unit combustion testing. It includes an outer shell and a test chamber fixedly installed on its inner bottom surface. A door is rotatably connected to the front side of the outer shell. Tanks are provided on both the left and right sides of the inner bottom surface of the outer shell, and the rear wall of each tank is connected to one end of a feed pipe. A solenoid valve is installed on the feed pipe, and the other end of the feed pipe is connected to a through pipe via a rotary sealing joint. A bearing on the through pipe penetrates the rear side wall of the test chamber, and a nozzle is fixedly installed on the surface of the through pipe. This rapid fire extinguishing device for single-unit combustion testing can dynamically adjust the spray angle from multiple angles after a single-unit combustion test, eliminating fire extinguishing blind spots, ensuring uniform fire extinguishing, avoiding fire extinguishing dead zones, and improving the fire extinguishing effect.

Description

Technical Field

[0001] This utility model relates to the field of fire extinguishing device technology, specifically a rapid fire extinguishing device for single-unit combustion testing. Background Technology

[0002] In the field of fire safety performance assessment, the single-unit combustion test is an important testing method widely used to determine the performance indicators of materials or products under single-unit combustion conditions, such as flame spread, smoke production, and heat release. After the sample burns, fire extinguishing equipment is required for suppression. However, existing fire extinguishing equipment still has certain shortcomings, such as:

[0003] The patent application CN202022810936.4, entitled "A High-Efficiency Fire Extinguishing Device for Battery Extrusion Test," cannot adjust the spray angle of the extinguishing agent during use and can only spray the extinguishing agent from a fixed direction, making it difficult to ensure uniform fire extinguishing and easily creating blind spots that affect safety. In view of this, a rapid fire extinguishing device for single-unit combustion test is proposed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a rapid fire extinguishing device for single-unit combustion tests, so as to solve the problem mentioned in the background art that existing fire extinguishing devices cannot adjust the spray angle of the extinguishing agent.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rapid fire extinguishing device for single-unit combustion testing, comprising an outer shell and a test chamber fixedly installed on its inner bottom surface;

[0006] The front side of the outer shell is rotatably connected to a shell door. Tanks are provided on both the left and right sides of the inner bottom surface of the outer shell. The rear wall of the tank is connected to one end of the conveying pipe. A solenoid valve is provided on the conveying pipe. The other end of the conveying pipe is connected to a through pipe through a rotary sealing joint. The through pipe bearing penetrates the rear side wall of the test chamber. A nozzle is fixedly installed on the surface of the through pipe.

[0007] The above technical solution facilitates the spraying of extinguishing agents from multiple angles to extinguish fires, thereby improving the fire extinguishing effect.

[0008] As a preferred technical solution of this utility model, a sliding plate is slidably connected to the inner top surface of the shell, and the sliding plate is located at the rear side of the test chamber. Racks are fixedly installed on both the left and right sides of the sliding plate, and gears are meshed at the bottom of the racks. The gears are fixedly installed on the surface of the through pipe.

[0009] By adopting the above technical solution, when the slide plate moves laterally, the rack drives the gear to rotate, which can realize the synchronous rotation of the nozzle driven by the pipe, so that the spray angle of the nozzle can be dynamically adjusted according to the fire extinguishing needs and eliminate fire extinguishing blind spots.

[0010] As a preferred technical solution of this utility model, a rotating shaft is provided through the bearing on the rear side wall of the outer shell, and a turntable is coaxially fixedly installed at the front end of the rotating shaft. A drive pin is fixedly installed at an eccentric position on the front side of the turntable, and the drive pin is provided through a strip groove on the slide plate. The diameter of the drive pin matches the width of the strip groove.

[0011] By adopting the above technical solution, when the turntable rotates, the drive pin slides in the strip groove, driving the slide plate to move back and forth in the lateral direction, providing power for the meshing transmission of the rack and pinion, and realizing the reciprocating adjustment of the nozzle angle.

[0012] As a preferred embodiment of this utility model, a frame is fixedly installed on the rear side of the housing, and a motor is fixedly installed on the rear side of the frame. The output shaft bearing of the motor passes through the frame, and the shaft end of the motor is keyed to the rear end of the rotating shaft.

[0013] The above technical solution facilitates the rotation of the shaft by driving air intake through the motor, providing stable power.

[0014] As a preferred technical solution of this utility model, the shell door is provided with an observation port.

[0015] The above technical solution facilitates intuitive monitoring of sample combustion and the effectiveness of fire extinguishing agent spraying.

[0016] As a preferred embodiment of this utility model, a fan is fixedly installed on the top surface of the outer shell, and an air duct is fixedly connected to the air inlet end of the fan. The air duct is fixedly inserted through the top of the outer shell and is fixedly connected to the top of the test chamber.

[0017] The above technical solution facilitates the startup of the fan after the fire is extinguished, allowing combustion smoke and high-temperature gases inside the test chamber to be discharged through the air duct.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the rapid fire extinguishing device for single-unit combustion test can dynamically adjust the spray angle from multiple angles after the single-unit combustion test, eliminate fire extinguishing blind spots, ensure uniform fire extinguishing, avoid fire extinguishing dead zones, and improve the fire extinguishing effect;

[0019] 1. The motor drives the turntable to rotate, which in turn drives the drive pin to slide in the slot of the slide plate, causing the slide plate to move laterally back and forth. Then, through the meshing transmission of the rack and pinion, the pipe drives the nozzle to rotate synchronously. The spray angle can be dynamically adjusted from multiple angles, which solves the problem of fixed spray angle and dead angle in existing devices.

[0020] 2. The nozzles are evenly distributed on the pipe and can rotate flexibly. Together with the tank, the fire extinguishing agent is delivered through the feed pipe, which can spray the fire extinguishing agent in all directions and at multiple angles, quickly cover the burning area, and improve the fire extinguishing effect.

[0021] 3. Start the fan on the top of the outer casing. The combustion smoke and high-temperature gases inside the test chamber can be discharged through the air duct. Connect the external air purification equipment to ensure the safety and cleanliness of the test environment and prepare for subsequent tests. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the front side view of the present invention;

[0023] Figure 2 This is a schematic diagram of the rear side view of the present invention;

[0024] Figure 3 This is a schematic diagram of the gear, the through pipe, and the gear connection structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the connection structure between the drive pin and the slot in this utility model;

[0026] Figure 5 This is a schematic diagram of the connection structure between the outer shell and the test chamber of this utility model;

[0027] Figure 6 This is a schematic diagram of the connection structure between the fan, duct, and outer casing in Embodiment 2 of this utility model.

[0028] In the diagram: 1. Outer shell; 2. Test chamber; 3. Shell door; 4. Tank body; 5. Feed pipe; 6. Solenoid valve; 7. Rotary sealing joint; 8. Through pipe; 9. Nozzle; 10. Observation port; 11. Slide plate; 12. Rack; 13. Gear; 14. Shaft; 15. Turntable; 16. Drive pin; 17. Strip groove; 18. Frame; 19. Motor; 20. Fan; 21. Air duct. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0030] Example 1

[0031] Please see Figure 1 - Figure 5The present invention provides a rapid fire extinguishing device for single-unit combustion testing, comprising an outer shell 1 and a test chamber 2 fixedly installed on its inner bottom surface. The outer shell 1 is equipped with a controller for controlling various electrical components. A door 3 is rotatably connected to the front side of the outer shell 1, and an observation port 10 is provided on the door 3. The door 3 is made of high-temperature resistant transparent material. Tanks 4 are provided on both the left and right sides of the inner bottom surface of the outer shell 1, and the rear wall of the tank 4 is connected to one end of a feed pipe 5. A solenoid valve 6 is provided on the feed pipe 5, and the other end of the feed pipe 5 is connected to a through pipe 8 through a rotary sealing joint 7. The through pipe 8 is pierced through the rear side wall of the test chamber 2, and a nozzle 9 is fixedly installed on the surface of the through pipe 8. Multiple nozzles 9 are evenly and equidistantly arranged on the through pipe 8, and the nozzles 9 are located inside the test chamber 2.

[0032] A sliding plate 11 is slidably connected to the inner top surface of the outer shell 1, and the sliding plate 11 is located at the rear side of the test chamber 2. A rack 12 is fixedly installed on both the left and right sides of the sliding plate 11, and a gear 13 is meshed at the bottom of the rack 12. The gear 13 is fixedly installed on the surface of the through pipe 8.

[0033] A rotating shaft 14 is provided through the bearing on the rear side wall of the outer casing 1, and a turntable 15 is coaxially fixedly installed at the front end of the rotating shaft 14. A drive pin 16 is fixedly installed at an eccentric position on the front side of the turntable 15, and the drive pin 16 is provided through a strip groove 17 opened on the slide plate 11. The diameter of the drive pin 16 matches the width of the strip groove 17.

[0034] A frame 18 is fixedly installed on the rear side of the housing 1, and a motor 19 is fixedly installed on the rear side of the frame 18. The output shaft bearing of the motor 19 passes through the frame 18, and the shaft end of the motor 19 is keyed to the rear end of the rotating shaft 14.

[0035] Working principle: After the sample completes the combustion test in the test chamber 2, the motor 19 is started, and its shaft drives the rotating shaft 14 to rotate. The turntable 15 at the front end of the rotating shaft 14 rotates accordingly. The drive pin 16 at the eccentric position on the front side of the turntable 15 slides in the strip groove 17 of the slide plate 11, causing the slide plate 11 to move laterally back and forth along the inner top surface of the outer shell 1. The racks 12 on the left and right sides of the slide plate 11 move synchronously and mesh with the gears 13 to drive the gears 13 fixed on the surface of the pipe 8 to rotate the pipe 8. The nozzles 9 on the surface of the pipe 8 adjust the spray angle accordingly.

[0036] At the same time, the solenoid valve 6 is opened, and the extinguishing agent in the tank 4 enters the through pipe 8 through the delivery pipe 5 and the rotary sealing joint 7, and is sprayed out from the nozzle 9. Since the angle of the nozzle 9 can be dynamically adjusted, the extinguishing agent can be sprayed evenly from multiple angles to cover the burning area.

[0037] Example 2

[0038] Please see Figure 6The difference between this embodiment and embodiment one is that: a fan 20 is fixedly installed on the top surface of the outer shell 1, and the air inlet end of the fan 20 is fixedly connected to an air duct 21. The air duct 21 is fixedly passed through the top of the outer shell 1 and is fixedly connected to the top of the test chamber 2. The air outlet end of the fan 20 is connected to an external air purification device.

[0039] After the fire is extinguished, the fan 20 on the top surface of the outer casing 1 is started. The combustion smoke and high-temperature gas in the test chamber 2 are discharged through the air duct 21 and can be purified by external air purification equipment.

[0040] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0041] 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 rapid fire extinguishing device for single-unit combustion testing, comprising an outer shell (1) and a test chamber (2) fixedly installed on its inner bottom surface, characterized in that: The front side of the outer shell (1) is rotatably connected to the shell door (3). The inner bottom surface of the outer shell (1) is provided with tanks (4) on both the left and right sides. The rear wall of the tank (4) is connected to one end of the conveying pipe (5). The conveying pipe (5) is provided with a solenoid valve (6). The other end of the conveying pipe (5) is connected to a through pipe (8) through a rotary sealing joint (7). The through pipe (8) is pierced through the rear side wall of the test chamber (2). The surface of the through pipe (8) is fixedly connected to a nozzle (9).

2. A single combustion test quick fire extinguishing device according to claim 1, characterized in that, The inner top surface of the outer shell (1) is slidably connected to a sliding plate (11), and the sliding plate (11) is located on the rear side of the test chamber (2). The left and right sides of the sliding plate (11) are fixedly installed with racks (12), and the bottom of the racks (12) is meshed with a gear (13). The gear (13) is fixedly installed on the surface of the through pipe (8).

3. A single combustible test rapid fire extinguishing device according to claim 2, characterized in that, A rotating shaft (14) is provided through the bearing on the rear side wall of the outer shell (1), and a turntable (15) is coaxially fixedly installed at the front end of the rotating shaft (14). A drive pin (16) is fixedly installed at an eccentric position on the front side of the turntable (15), and the drive pin (16) is provided through a strip groove (17) opened on the slide plate (11). The diameter of the drive pin (16) matches the width of the strip groove (17).

4. The rapid fire extinguishing device for single-unit combustion testing according to claim 3, characterized in that, A frame (18) is fixedly installed on the rear side of the housing (1), and a motor (19) is fixedly installed on the rear side of the frame (18). The output shaft bearing of the motor (19) passes through the frame (18), and the shaft end of the motor (19) is keyed to the rear end of the rotating shaft (14).

5. A single combustion test quick fire extinguishing device according to claim 1, characterized in that, An observation port (10) is provided on the shell door (3).

6. A single combustion test quick fire extinguishing device according to claim 1, characterized in that, A fan (20) is fixedly installed on the top surface of the outer shell (1), and the air inlet end of the fan (20) is fixedly connected to an air duct (21). The air duct (21) is fixedly inserted through the top of the outer shell (1), and the air duct (21) is fixedly connected to the top of the test chamber (2).

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