Temperature sensing fire source detector

Abstract

The utility model discloses a temperature sensing fire source detector which comprises a temperature sensing structure used for detecting environment temperature and a pressure storage structure used for storing high-pressure gas, the temperature sensing structure is arranged on a trigger assembly, and a puncture assembly is arranged between the trigger assembly and the pressure storage structure. The trigger assembly moves in the trigger direction to drive the puncture assembly to puncture the pressure storage structure so as to release high-pressure gas into the gas outlet channel. The pressure storage structure is arranged for storing the high-pressure inert gas, when the environment temperature is too high, the temperature sensing structure deforms and does not limit the triggering assembly any more, the triggering assembly moves in the triggering direction and drives the puncture assembly to get close to the pressure storage structure and puncture the pressure storage structure, and the high-pressure inert gas is released to the gas outlet channel to be sprayed out; and the gas enters an external pressure trigger switch or a fire extinguishing system trigger pipeline to drive the starting of the whole fire extinguishing system, so that the quick response is realized, the smoke interference is avoided, the fire does not need to be fired on site, and the fire extinguishing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire fighting and extinguishing, in particular to a temperature-sensitive fire source detector. Background Art

[0002] Fire extinguishing systems play a crucial role in firefighting in larger buildings. Fire extinguishing systems typically include fire detectors to trigger the entire system. Common fire detectors on the market are mostly photosensitive flame detectors, which utilize sensors to detect infrared and ultraviolet wavelengths of burning flames. By detecting the specific wavelengths of red ultraviolet light emitted by flames within the detection range, they can determine whether a fire is present.

[0003] In actual applications, this type of photosensitive flame detector has many problems during application. Its detection range has blind spots. There must be an open flame within the effective range of the detection head to detect the flame. Therefore, when using it, several groups of photosensitive flame detectors need to be installed at the same time to cover the blind spots. Not only is the installation troublesome, but it also requires designing and selecting suitable locations to cover the fire-fighting sites. At the same time, after the open fire at the combustion site, the combustion often begins to intensify, and the response time is slow. During the combustion, various smoke and dust at the scene will interfere with the sensor, resulting in a delayed response time.

[0004] Therefore, the existing technology needs to be further improved. Utility Model Content

[0005] In view of the shortcomings of the existing technology, a pressure storage automatic fire extinguishing system is proposed to solve the problems in the above background technology that the flame detector does not respond in time and is easily affected by smoke and dust.

[0006] To achieve the above objectives, the present invention proposes the following technologies:

[0007] A temperature-sensing fire source detector includes a temperature-sensing structure for detecting ambient temperature and a pressure storage structure for storing high-pressure gas. The temperature-sensing structure is arranged on a trigger component, and a puncture component is arranged between the trigger component and the pressure storage structure. The trigger component moves in the triggering direction to drive the puncture component to puncture the pressure storage structure to release the high-pressure gas into the air outlet channel.

[0008] Furthermore, the puncture assembly includes a puncture block and a puncture needle, a first air outlet is provided inside the puncture needle, and a second air outlet connected to the first air outlet is provided inside the puncture block.

[0009] Furthermore, the second air outlet duct penetrates the puncture block to form two opposite air outlet holes on the surface of the puncture block, and the second air outlet duct is arranged perpendicular to the first air outlet duct.

[0010] Furthermore, it also includes a first shell sleeved on the periphery of the trigger assembly, the trigger assembly includes a sliding frame slidably connected to the first shell, and the puncture assembly is arranged at the end of the sliding frame.

[0011] Furthermore, the trigger assembly further includes a first limiting ring provided on the sliding frame, and a first spring sleeved on the periphery of the sliding frame, wherein two ends of the first spring respectively abut against the inner wall of the first shell and the first limiting ring.

[0012] Furthermore, the temperature sensing structure is a temperature sensing ball, one end of the sliding frame away from the puncture assembly extends to the outside of the first shell, and the temperature sensing ball is clamped between the sliding frame and the first shell.

[0013] Furthermore, it also includes a second shell that is sleeved on the outside of the pressure storage assembly, the second shell is detachably connected to the first shell, and the air outlet channel is arranged on a side of the first shell close to the second shell.

[0014] Furthermore, it also includes a third shell arranged at the end of the first shell. The temperature sensing structure is a disc spring installed in the third shell. The disc spring is made of memory metal. The extension of the disc spring drives the sliding frame and the puncture assembly to move and puncture the pressure storage structure.

[0015] Furthermore, the disc spring is sleeved on the periphery of the sliding frame, and the trigger assembly also includes a second limiting ring arranged on the sliding frame, and a second spring sleeved on the periphery of the sliding frame. The two ends of the disc spring are respectively abutted against the inner wall of the third shell and the second limiting ring, and the two ends of the second spring are respectively abutted against the inner wall of the first shell and the second limiting ring.

[0016] Furthermore, the elastic coefficient of the disc spring is greater than the elastic coefficient of the second spring.

[0017] Compared with the prior art, the comprehensive effects brought by the utility model include:

[0018] (1) The present application sets up a pressure storage structure for storing high-pressure inert gas. When the ambient temperature is too high, the temperature sensing structure deforms and no longer limits the trigger component. The trigger component moves along the trigger direction and drives the puncture component to approach the pressure storage structure and puncture the pressure storage structure. The high-pressure inert gas is released into the air outlet channel and ejected into the external pressure trigger switch or the fire extinguishing system trigger pipeline, driving the start-up of the entire fire extinguishing system, achieving rapid response without being disturbed by smoke and dust, and without waiting for an open fire to ignite on site, thereby improving the fire extinguishing efficiency.

[0019] (2) The present application provides a puncture needle and a puncture block with a hollow structure, and the gas can enter the second air outlet through the first air outlet in the puncture needle and then enter the air outlet channel, thereby ensuring the release effect of high-pressure gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall internal structure of Example 1 of the present utility model;

[0021] Figure 2 for Figure 1 Schematic diagram of the local structure;

[0022] Figure 3 This is a schematic diagram of the overall three-dimensional structure of Example 1 of the present utility model;

[0023] Figure 4 for Figure 3 Schematic diagram of the local structure;

[0024] Figure 5 This is a schematic diagram of the overall internal structure of Example 2 of the present utility model;

[0025] Figure 6 This is a schematic diagram of the overall three-dimensional structure of Example 2 of the present utility model.

[0026] Legend: 1. Temperature-sensing bulb; 2. Pressure storage structure; 3. Air outlet channel; 4. Puncture block; 5. Puncture needle; 6. First air outlet channel; 7. Second air outlet channel; 8. First shell; 9. Sliding frame; 10. First limiting ring; 11. First spring; 12. Second shell; 13. Third shell; 14. Disc spring; 15. Second limiting ring; 16. Second spring; 17. Baffle. DETAILED DESCRIPTION

[0027] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative efforts are within the scope of protection of the present invention.

[0028] In this document, relational terms such as "first" and "second" are used solely to distinguish one entity or operation from another, and do not necessarily require or imply any actual relationship or order between these entities or operations. Terms such as "upper," "lower," "left," "right," and "top" indicate positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0029] Example 1:

[0030] like Figures 1 to 3As shown, a temperature-sensing fire source detector includes a temperature-sensing structure for detecting the ambient temperature and a pressure storage structure 2 for storing high-pressure gas. The temperature-sensing structure is arranged on the trigger component, and a puncture component is arranged between the trigger component and the pressure storage structure 2. The trigger component moves along the trigger direction to drive the puncture component to puncture the pressure storage structure 2 to release the high-pressure gas into the air outlet channel 3.

[0031] By setting up a pressure storage structure 2 for storing high-pressure inert gas, when the ambient temperature is too high, the temperature sensing structure is deformed and no longer limits the trigger component. The trigger component moves along the trigger direction and drives the puncture component to approach the pressure storage structure 2 and puncture the pressure storage structure 2. The high-pressure inert gas is released into the air outlet channel 3 and ejected, entering the external pressure trigger switch or the fire extinguishing system trigger pipeline, driving the startup of the entire fire extinguishing system, achieving rapid response, without being disturbed by smoke and dust, and without having to wait until an open fire is ignited on site, thereby improving the fire extinguishing efficiency.

[0032] In the heat-sensitive fire detector of this embodiment, the puncture assembly includes a puncture block 4 and a puncture needle 5 . A first air outlet 6 is provided inside the puncture needle 5 , and a second air outlet 7 communicating with the first air outlet 6 is provided inside the puncture block 4 .

[0033] Specifically, the pressure storage structure 2 is a gas storage tank, and the tank mouth is sealed by an aluminum sheet. When the trigger assembly drives the puncture assembly to puncture the gas storage tank, the needle-shaped end of the puncture needle 5 passes through the aluminum sheet and is inserted into the gas storage tank. Since the edge of the aluminum sheet and the puncture needle 5 may fit tightly, which may easily cause the gas to escape unsmoothly, a puncture needle 5 with a hollow structure is provided. The gas can enter the second air outlet 7 through the first air outlet 6 in the puncture needle 5 and enter the air outlet channel 3, thereby ensuring the release effect of the high-pressure gas.

[0034] In the heat-sensitive fire detector of this embodiment, the second air outlet 7 penetrates the puncture block 4 to form two opposite air outlet holes on the surface of the puncture block 4 , and the second air outlet 7 is arranged perpendicular to the first air outlet 6 .

[0035] Specifically, the puncture needle 5 and the puncture block 4 are both cylindrical, and the diameter of the puncture block 4 is larger than the diameter of the puncture needle 5, so as to avoid the air outlet hole being inserted into the gas storage tank to affect the air outlet. A second air outlet 7 is set perpendicular to the first air outlet 6 and corresponds to the air outlet channel 3 to facilitate the gas to enter the air outlet channel 3.

[0036] The heat-sensing fire detector of this embodiment further includes a first shell 8 sleeved around the trigger assembly. The trigger assembly includes a sliding frame 9 slidably connected to the first shell 8 , and the puncture assembly is arranged at the end of the sliding frame 9 .

[0037] Specifically, the first shell 8 guides the sliding frame 9 to ensure that the sliding frame 9 drives the puncture needle 5 to puncture the gas tank along the triggering direction. The end of the sliding frame 9 connected to the puncture block 4 is set to a columnar shape, and the end of the first shell 8 close to the gas tank is sleeved on the outer periphery of the cylindrical end of the sliding frame 9, and is provided with a puncture channel and an air outlet channel connected to the air outlet channel 3. The above-mentioned setting has a sealing effect on the puncture channel and the air outlet channel, thereby preventing the gas from leaking from between the sliding frame 9 and the first shell 8 after puncturing the gas tank.

[0038] Preferably, a second shell 12 is provided on the outside of the gas storage tank, and the second shell 12 is detachably connected to the first shell 8. The air outlet channel 3 is provided on the side of the first shell 8 close to the second shell 12. Through the above arrangement, the air outlet channel 3 corresponds to the air outlet duct, which facilitates the gas in the gas storage tank to enter the air outlet channel 3.

[0039] In the heat-sensitive fire detector of this embodiment, the temperature-sensing structure is a temperature-sensing ball 1 , and the sliding frame 9 extends to the outside of the first shell 8 at one end away from the puncture assembly. The temperature-sensing ball 1 is clamped between the sliding frame 9 and the first shell 8 .

[0040] Specifically, the part of the sliding frame 9 extending to the outside of the first shell 8 is provided with a hollow column structure, and a through hole is opened on the side. The above structure is convenient for installing the temperature-sensing bulb 1. At the same time, the through hole ensures that the temperature-sensing bulb 1 is in full contact with the environment, thereby improving the temperature monitoring sensitivity and achieving rapid response; it is set as the temperature-sensing bulb 1, which is columnar under normal conditions to support and limit the sliding frame 9. When the external temperature is too high, the temperature-sensing bulb 1 breaks, and the sliding frame 9 loses its limit and moves in the triggering direction, driving the puncture needle 5 to puncture the gas tank.

[0041] Preferably, a baffle 17 is provided at the end of the first shell 8, and the baffle 17 can slide relative to the through hole. The temperature sensing ball 1 is clamped between the baffle 17 and the end of the sliding frame 9. The above setting can fix the temperature sensing ball 1 while avoiding affecting the sliding of the sliding frame 9.

[0042] In the temperature-sensitive fire source detector of this embodiment, the trigger assembly also includes a first limiting ring 10 arranged on the sliding frame 9, and a first spring 11 arranged on the periphery of the sliding frame 9. The two ends of the first spring 11 are respectively in contact with the inner wall of the first shell 8 and the first limiting ring 10.

[0043] Specifically, a first spring 11 is provided to drive the sliding frame 9 to extend to achieve puncture. Normally, the sliding frame 9 extends out of the first shell 8, driving the first limit ring 10 to compress the first spring 11. When the temperature-sensing bulb 1 ruptures, the first spring 11 extends to push the first limit ring 10 and the sliding frame 9 to move.

[0044] Example 2:

[0045] The heat-sensing fire detector of this embodiment has the same basic structure as that of embodiment 1, except for the following structures:

[0046] In this embodiment, a third shell 13 is further included at the end of the first shell 8. The temperature sensing structure is a disc spring 14 installed in the third shell 13. The disc spring 14 is made of memory metal. The extension of the disc spring 14 drives the sliding frame 9 and the puncture assembly to move and puncture the pressure storage structure 2.

[0047] Specifically, a temperature-sensing structure is provided with a disc spring 14 made of memory metal. When the ambient temperature is too high, the disc spring 14 extends and pushes the sliding frame 9 to move in the triggering direction to puncture the gas tank; a third shell 13 is provided to accommodate the disc spring 14, and at the same time, a vent hole connected to the outside world is opened on the side of the third shell 13 to ensure that the disc spring 14 is in full contact with the environment, so as to respond in time according to the temperature when the temperature is too high.

[0048] In the temperature-sensitive fire source detector of this embodiment, the disc spring 14 is mounted on the periphery of the sliding frame 9, and the trigger assembly also includes a second limiting ring 15 arranged on the sliding frame 9, and a second spring 16 mounted on the periphery of the sliding frame 9. The two ends of the disc spring 14 are respectively in contact with the inner wall of the third shell 13 and the second limiting ring 15, and the two ends of the second spring 16 are respectively in contact with the inner wall of the first shell 8 and the second limiting ring 15.

[0049] Specifically, a second spring 16 is provided to push the second limiting ring 15 to limit the disc spring 14 under normal circumstances, and at the same time push the sliding frame 9 and the puncture assembly away from the gas tank. When the temperature is too high, the disc spring 14 stretches, and the second limiting ring 15 compresses the second spring 16 to drive the sliding frame 9 to move.

[0050] Specifically, the elastic coefficient of the disc spring 14 is greater than the elastic coefficient of the second spring 16. The above arrangement ensures that when the disc spring 14 is extended, it can push the second limit ring 15 and compress the second spring 16, thereby smoothly driving the sliding frame 9 to move in the triggering direction.

[0051] In the present invention, unless otherwise clearly stipulated and limited, the terms "installation", "setting", "connection", "fixation", "rotation" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0052] Although the embodiments of the present invention have been shown and described in detail, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat-sensing fire detector, characterized in that: It includes a temperature sensing structure for detecting the ambient temperature and a pressure storage structure for storing high-pressure gas. The temperature sensing structure is arranged on the trigger component. A puncture component is arranged between the trigger component and the pressure storage structure. The trigger component moves along the trigger direction to drive the puncture component to puncture the pressure storage structure to release the high-pressure gas into the air outlet channel.

2. The heat-sensing fire detector according to claim 1, characterized in that: The puncture assembly comprises a puncture block and a puncture needle. A first air outlet is provided inside the puncture needle, and a second air outlet communicated with the first air outlet is provided inside the puncture block.

3. The heat-sensing fire detector according to claim 2, characterized in that: The second air outlet passes through the puncture block to form two opposite air outlet holes on the surface of the puncture block. The second air outlet is arranged perpendicular to the first air outlet.

4. The heat-sensing fire detector according to claim 1, characterized in that: It also includes a first shell sleeved on the periphery of the trigger assembly, the trigger assembly includes a sliding frame slidably connected to the first shell, and the puncture assembly is arranged at the end of the sliding frame.

5. The heat-sensing fire detector according to claim 4, characterized in that: The trigger assembly further includes a first limiting ring arranged on the sliding frame, and a first spring sleeved on the periphery of the sliding frame, wherein two ends of the first spring respectively abut against the inner wall of the first shell and the first limiting ring.

6. The heat-sensing fire detector according to claim 4, characterized in that: The temperature sensing structure is a temperature sensing ball. One end of the sliding frame away from the puncture assembly extends to the outside of the first shell. The temperature sensing ball is clamped between the sliding frame and the first shell.

7. The heat-sensing fire detector according to claim 4, characterized in that: It also includes a second shell that is sleeved on the outside of the pressure storage assembly. The second shell is detachably connected to the first shell, and the air outlet channel is arranged on a side of the first shell close to the second shell.

8. The heat-sensing fire detector according to claim 4, characterized in that: It also includes a third shell arranged at the end of the first shell. The temperature sensing structure is a disc spring installed in the third shell. The disc spring is made of memory metal. The extension of the disc spring drives the sliding frame and the puncture assembly to move and puncture the pressure storage structure.

9. The heat-sensing fire detector according to claim 8, characterized in that: The disc spring is sleeved on the periphery of the sliding frame, and the trigger assembly also includes a second limiting ring arranged on the sliding frame, and a second spring sleeved on the periphery of the sliding frame. The two ends of the disc spring are respectively abutted against the inner wall of the third shell and the second limiting ring, and the two ends of the second spring are respectively abutted against the inner wall of the first shell and the second limiting ring.

10. The heat-sensing fire detector according to claim 9, characterized in that: The elastic coefficient of the disc spring is greater than the elastic coefficient of the second spring.

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