High-temperature detection automatic fire extinguishing device

Abstract

The utility model discloses a high-temperature detection automatic fire extinguishing device, which relates to the field of fire extinguishing devices and comprises a fire extinguishing tank, a nozzle and a hook, and a high-temperature detection mechanism is fixedly arranged at the bottom of the fire extinguishing tank and positioned on one side of the nozzle; the high-temperature detection mechanism comprises a shell, a mercury bin, a mercury ascending pipe, a piston, a temperature detection head, a trigger rod and a trigger switch, the shell is fixedly arranged at the bottom of the fire extinguishing tank, the mercury bin is fixedly arranged at the bottom of the shell, the temperature detection head is fixedly installed at the bottom of the mercury bin, and the mercury ascending pipe is fixedly arranged at the top of the mercury bin; the piston is slidably arranged in the mercury ascending pipe, the trigger rod is fixedly connected with the piston, a mounting plate is fixedly arranged in the shell, and the trigger switch is fixedly mounted on the lower surface of the mounting plate. According to the utility model, mercury is used as a triggering body for high-temperature detection, so that the fire extinguishing device can trigger fire extinguishing action in time and is not easy to damage, and the use cost of equipment is reduced.

Description

Technical Field

[0001] This utility model relates to the field of fire extinguishing devices, specifically to a high-temperature detection automatic fire extinguishing device. Background Technology

[0002] Suspended fully automatic fire extinguishing devices, also known as suspended heptafluoropropane fire extinguishing devices, are characterized by high fire extinguishing efficiency, fast speed, large safety factor, and reliable operation. They use nitrogen as the driving gas, with a nitrogen filling pressure of 1.6 MPa. They are easy to install, require little engineering work, and do not require the installation of a large number of pipelines and auxiliary facilities.

[0003] Existing suspended fully automatic fire extinguishing systems mainly use temperature sensors as the element for detecting high temperatures. However, since temperature sensors are precision instruments, they are prone to failure and damage over long periods of time, and their operating and maintenance costs are relatively high. Therefore, a high-temperature detection automatic fire extinguishing system is proposed. Utility Model Content

[0004] In view of the problems existing in the above-mentioned automatic fire extinguishing devices, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide an automatic fire extinguishing device for high temperature detection, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An automatic fire extinguishing device with high temperature detection includes a fire extinguishing canister, a nozzle, and a hook. The nozzle is located at the bottom of the fire extinguishing canister, and the hook is located at the top of the fire extinguishing canister. A high temperature detection mechanism is fixedly installed at the bottom of the fire extinguishing canister and on one side of the nozzle. The high temperature detection mechanism includes a shell, a mercury tank, a mercury riser, a piston, a temperature detection head, a trigger rod, and a trigger switch. The shell is fixedly installed at the bottom of the fire extinguishing canister, and the mercury tank is fixedly installed at the bottom of the shell, with mercury stored inside. The temperature detection head is fixedly installed at the bottom of the mercury tank, and the mercury riser is fixedly installed at the top of the mercury tank. The piston is slidably located inside the mercury riser. The lower end of the trigger rod is fixedly connected to the top of the piston, and the upper end of the trigger rod extends to the outside of the mercury riser. A mounting plate is fixedly installed inside the shell, and the trigger switch is fixedly installed on the lower surface of the mounting plate.

[0008] Preferably, the temperature sensing head is a copper metal sensing head, and the upper end of the temperature sensing head extends into the interior of the mercury.

[0009] Preferably, the diameter of the mercury riser is smaller than the diameter of the mercury reservoir, and the volume of the mercury riser is smaller than the volume of the mercury reservoir.

[0010] Preferably, the trigger rod and the trigger switch are arranged in a vertically corresponding manner, and the trigger switch and the opening and closing valve of the fire extinguisher are connected in series in the same circuit.

[0011] Furthermore, a protective cover is fixedly provided at the bottom of the outer casing and outside the temperature detection head.

[0012] Preferably, the outer shell is fixed to the bottom of the fire extinguisher by welding, and the protective cover is integrally formed with the outer shell.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] This invention, through the inclusion of a mercury tank, a mercury riser pipe, a piston, a temperature detection head, a trigger rod, and a trigger switch, allows the temperature detection head to detect temperature increases during a fire, transferring heat to the mercury and causing it to expand and enter the mercury riser pipe. This compresses the gas inside the riser pipe, causing the piston to move upward within it. Consequently, the trigger rod moves upward and contacts the trigger switch, triggering the opening and closing valve inside the fire extinguisher, enabling automatic fire extinguishing via the nozzle. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 For the present utility model Figure 1 Schematic diagram of the internal structure of the inner and outer shells;

[0018] Figure 3 For the present utility model Figure 2 A 3D view of the connection between the mercury riser tube, piston, and trigger rod.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Fire extinguishing canister; 2. Nozzle; 3. Hook; 4. Outer shell; 5. Mercury tank; 6. Mercury riser pipe; 7. Piston; 8. Temperature sensor head; 9. Trigger rod; 10. Trigger switch; 11. Mounting plate; 12. Protective cover. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0022] This utility model provides, for example Figure 1-3 The illustrated high-temperature detection automatic fire extinguishing device includes a fire extinguishing tank 1, a nozzle 2, and a hook 3. The nozzle 2 is located at the bottom of the fire extinguishing tank 1, and the hook 3 is located at the top of the fire extinguishing tank 1. A high-temperature detection mechanism is fixedly installed at the bottom of the fire extinguishing tank 1, located to one side of the nozzle 2. The high-temperature detection mechanism includes a housing 4, a mercury tank 5, a mercury riser pipe 6, a piston 7, a temperature detection head 8, a trigger rod 9, and a trigger switch 10. The housing 4 is fixedly installed at the bottom of the fire extinguishing tank 1, and the mercury tank 5 is fixedly installed at the bottom of the housing 4, with mercury stored inside. The temperature detection head 8 is fixedly installed at the bottom of the mercury tank 5 and is made of copper. The upper end extends into the interior of the mercury. Copper has strong thermal conductivity, which can quickly transfer high temperature to the interior of the mercury. The mercury riser tube 6 is fixedly installed on the top of the mercury tank 5. The diameter of the mercury riser tube 6 is smaller than the diameter of the mercury tank 5, and the volume of the mercury riser tube 6 is smaller than the volume of the mercury tank 5. This ensures that the mercury inside the mercury tank 5 can quickly fill the interior of the mercury riser tube 6. The piston 7 is slidably installed inside the mercury riser tube 6. The lower end of the trigger rod 9 is fixedly connected to the top of the piston 7, and the upper end of the trigger rod 9 extends to the outside of the mercury riser tube 6. The housing 4 is fixedly provided with a mounting plate 11, and the trigger switch 10 is fixedly installed on the lower surface of the mounting plate 11.

[0023] When a fire occurs and the indoor temperature is high, the temperature detection head 8 can detect the temperature rise. The temperature detection head 8 will transfer heat to the interior of the mercury. Since mercury is composed of mercury atoms, when the temperature rises, the mercury atoms gain more energy. According to the kinetic theory of molecules, the temperature of an object is an indicator of the intensity of the thermal motion of molecules (or atoms). As the temperature rises, the mercury will gradually enter the interior of the mercury riser tube 6, thereby compressing the gas inside the mercury riser tube 6 and causing the piston 7 to move upward inside the mercury riser tube 6. This causes the trigger rod 9 to move upward and contact the trigger switch 10, thereby triggering the opening and closing valve inside the fire extinguisher 1, which can then automatically extinguish the fire through the nozzle 2.

[0024] In order for the trigger lever 9 to touch the trigger switch 10, and for the trigger switch 10 to automatically open the fire extinguisher 1, as follows: Figure 1-2 As shown, the trigger rod 9 and the trigger switch 10 are arranged in a vertically corresponding manner, and the trigger switch 10 and the opening and closing valve of the fire extinguisher 1 are connected in series in the same circuit.

[0025] Finally, in order to protect the temperature sensor head 8, such as... Figure 2As shown, a protective cover 12 is fixedly provided at the bottom of the outer shell 4 and outside the temperature detection head 8. The outer shell 4 and the bottom of the fire extinguisher 1 are fixed by welding. The protective cover 12 and the outer shell 4 are integrally formed. During the transportation of the fire extinguisher 1, since the material of the temperature detection head 8 is relatively soft and easily broken, the protective cover 12 can play a protective role.

[0026] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-temperature detection automatic fire extinguishing device, comprising a fire extinguishing canister (1), a nozzle (2), and a hook (3), wherein the nozzle (2) is disposed at the bottom of the fire extinguishing canister (1), and the hook (3) is disposed at the top of the fire extinguishing canister (1), characterized in that: A high-temperature detection mechanism is fixedly installed at the bottom of the fire extinguishing canister (1) and on one side of the nozzle (2); The high-temperature detection mechanism includes a shell (4), a mercury tank (5), a mercury riser tube (6), a piston (7), a temperature detection head (8), a trigger rod (9), and a trigger switch (10). The shell (4) is fixedly installed at the bottom of the fire extinguisher (1). The mercury tank (5) is fixedly installed at the bottom of the shell (4), and the mercury tank (5) contains mercury. The temperature detection head (8) is fixedly installed at the bottom of the mercury tank (5). The mercury riser tube (6) is fixedly installed at the top of the mercury tank (5). The piston (7) is slidably installed inside the mercury riser tube (6). The lower end of the trigger rod (9) is fixedly connected to the top of the piston (7), and the upper end of the trigger rod (9) extends to the outside of the mercury riser tube (6). An installation plate (11) is fixedly installed inside the shell (4), and the trigger switch (10) is fixedly installed on the lower surface of the installation plate (11).

2. The high-temperature detection automatic fire extinguishing device according to claim 1, characterized in that: The temperature detection head (8) is made of copper metal, and the upper end of the temperature detection head (8) extends into the interior of the mercury.

3. The high-temperature detection automatic fire extinguishing device according to claim 1, characterized in that: The diameter of the mercury riser pipe (6) is smaller than the diameter of the mercury tank (5), and the volume of the mercury riser pipe (6) is smaller than the volume of the mercury tank (5).

4. The high-temperature detection automatic fire extinguishing device according to claim 1, characterized in that: The trigger rod (9) and the trigger switch (10) are arranged in a vertically corresponding manner, and the trigger switch (10) and the opening and closing valve of the fire extinguisher (1) are connected in series in the same circuit.

5. The high-temperature detection automatic fire extinguishing device according to claim 1, characterized in that: A protective cover (12) is fixedly provided at the bottom of the outer casing (4) and outside the temperature detection head (8).

6. The high-temperature detection automatic fire extinguishing device according to claim 5, characterized in that: The outer shell (4) is fixed to the bottom of the fire extinguisher (1) by welding, and the protective cover (12) is integrally formed with the outer shell (4).

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