Fire detection tube type temperature sensing self-starting fire extinguishing device

Abstract

The utility model discloses a fire detection tube type temperature-sensing self-starting fire extinguishing device which comprises a tube body, sleeves used for shrinking towards the axial lead direction are arranged on the outer walls of the two ends of the tube body in a sleeved mode, sealing valve bodies are arranged at the two ends of the tube body, and the sleeves are tightly pressed on the end faces of the tube body. A plurality of convex hulls at equal intervals are evenly distributed on the inner wall of the sleeve with a circle point as the axis and abut against the outer wall of the pipe body, a protective cover is arranged on the outer wall of the sealing valve body, and the sealing valve body is further provided with detachable installation pieces embedded into the two sides of the protective cover. A plurality of convex hulls are embedded in the inner wall of the pipe body, so that the friction force and the locking force between the sleeve and the pipe body are effectively enhanced, the connection looseness caused by factors such as oxidation and humidity is prevented, and the fire extinguishing agent is effectively prevented from leaking; through the design of the detachable mounting piece, screw fixing or magnetic attraction mounting is supported, and practicability and convenience are achieved; in addition, the protective cover also plays a role in increasing the creepage distance and preventing fire.

Description

Technical Field

[0001] This utility model relates to the field of fire protection equipment technology, and in particular to a fire detection tube type temperature sensing self-starting fire extinguishing device. Background Technology

[0002] Fire is both an indispensable part of people's daily lives and a source of significant damage. Current firefighting methods typically involve first establishing a fire, then taking appropriate measures once the fire is detected. However, the process from ignition to alarming, obtaining information about the fire, and finally implementing firefighting measures takes considerable time, often resulting in substantial losses by the time the fire is extinguished.

[0003] To address fire risks, a fire-detecting tube-type temperature-sensitive self-activating fire extinguishing device has emerged. This device comprises a tube made of temperature-sensitive material and a high-pressure extinguishing agent filled within it. It features a simple structure, ease of use, low cost, rapid activation, and high reliability. In the event of a ruptured heated pipe, the device responds quickly and automatically initiates the extinguishing process without external power or manual intervention, effectively controlling the fire and preventing its spread. It is particularly suitable for fire prevention in relatively enclosed, small spaces and electrical cabinets. However, the applicant discovered that the contraction components at both ends of the tube are susceptible to oxidation and humid air after prolonged use, leading to loosening of the connection with the tube and preventing a tight seal, resulting in internal pressure leakage. Therefore, the applicant has developed a beneficial design and found a solution to the above problem. The technical solution described below arose from this context. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the traditional fire-detecting tube type temperature-sensing self-starting fire extinguishing device design, and to provide a product with protective function, anti-loosening, good practicality, and convenience.

[0005] A fire-detecting tube-type temperature-sensing self-starting fire extinguishing device includes a tube body. Sleeves for contracting towards the axis are fitted onto the outer walls of both ends of the tube body. Sealing valves are provided at both ends of the tube body, pressing the sleeves tightly against the end faces of the tube body. The inner wall of the sleeves is evenly distributed with a plurality of equally spaced protrusions centered on a dot, abutting against the outer wall of the tube body. A protective cover is provided on the outer wall of the sealing valves. The sealing valves also have detachable mounting components embedded on both sides of the protective cover.

[0006] Preferably, the outer wall of the stem portion of the sealing valve body is provided with a plurality of equally spaced inclined blocks from bottom to top.

[0007] Preferably, one of the sealing valve bodies is provided with a pressure signal device, the pressure signal device is provided with a check valve, the other sealing valve body is provided with a pressure gauge, and the outer wall of the sealing valve body is provided with a fixing groove.

[0008] Preferably, the protective cover is configured as a semi-enclosed type and fits against the outer wall of the pressure signal device or pressure gauge. The protective cover has extensions on both sides, and the extensions have limiting grooves that abut against the mounting parts. The end face of the protective cover has a protective edge and is located near the end face of the pressure signal device or pressure gauge.

[0009] Preferably, the mounting component has an open groove corresponding to the fixing groove, the entrance of the groove tapers towards the middle, and the entrance of the groove also has an arc portion.

[0010] Preferably, the mounting component has a mounting portion that is perpendicular to the mounting component. The mounting portion has mounting holes on both sides and multiple bosses. The bosses have threaded holes for fixing to magnets.

[0011] Preferably, the convex hulls are arranged from bottom to top.

[0012] Preferably, the tube is filled with a fire extinguishing agent. Beneficial effects

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] (1) This utility model effectively increases the friction and locking force between the sleeve and the pipe body by embedding multiple protrusions in the inner wall of the pipe body, thereby avoiding the problem of loose connection between the sealing valve body and the pipe body due to environmental factors such as long-term oxidation and humid air, and preventing the fire extinguishing agent from leaking. The above design makes the product have the advantages of leak prevention and loosening prevention.

[0015] (2) With the design of detachable mounting parts, the product can be easily installed in the space where fire needs to be extinguished by screw fixing or magnetic attraction without the need for additional installation devices, making the product practical and convenient.

[0016] (3) In this utility model, after the limiting groove and the mounting part are tightly abutted, it not only effectively prevents the pipe body from rotating, but also resists the potential damage of fire to the pressure signal device and pressure gauge, thereby extending the alarm time of the pressure signal device and ensuring that the back-end personnel can continuously receive alarm information. In addition, while providing protection, the protective cover also significantly increases the creepage distance, effectively preventing the large current generated by the nearby switch equipment during the opening and closing process when the product is installed in the electrical cabinet from flowing to the pressure signal device or pressure gauge, thereby avoiding equipment damage and further ensuring the stable operation and safety of the system. The edge protection further improves the fire protection or creepage performance. At the same time, the semi-enclosed design of the protective cover not only improves the protection performance, but also facilitates quick disassembly. Attached Figure Description

[0017] Figure 1 This is a side cross-sectional view of a fire-detecting tube-type temperature-sensing self-starting fire extinguishing device according to the present invention.

[0018] Figure 2 This utility model Figure 1 A partial enlarged view (A) of a fire-detecting tube-type temperature-sensing self-starting fire extinguishing device;

[0019] Figure 3 This is a schematic diagram of the structure of a fire detection tube type temperature sensing self-starting fire extinguishing device according to the present invention;

[0020] Figure 4 This is an exploded structural diagram of a fire-detecting tube-type temperature-sensing self-starting fire extinguishing device according to the present invention.

[0021] Figure 5 This is a schematic diagram of the installation component of a fire detection tube type temperature sensing self-starting fire extinguishing device according to the present invention;

[0022] The correspondence between the labels and component names in the attached figures is as follows:

[0023] Reference numerals: 1. Pipe body; 2. Sleeve; 3. Sealing valve body; 4. Mounting component; 5. Check valve; 6. Pressure signal device; 7. Pressure gauge; 8. Protective cover; 21. Protrusion; 31. Wedge block; 32. Fixing groove; 41. Groove; 42. Arc; 43. Mounting part; 44. Mounting hole; 45. Boss; 46. Threaded hole; 81. Extension; 82. Limiting groove; 83. Edge protector. Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In this embodiment of the utility model, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0027] Reference example Figures 1 to 5 A fire-detecting tube-type temperature-sensing self-starting fire extinguishing device includes a tube body 1. Sleeves 2, which retract towards the axis, are fitted onto the outer walls of both ends of the tube body 1. Sealing valve bodies 3 are provided at both ends of the tube body 1, pressing the sleeves 2 tightly against the end faces of the tube body 1. Several equally spaced protrusions 21 are evenly distributed on the inner wall of the sleeves 2, centered on a dot, and abut against the outer wall of the tube body 1. A protective cover 8 is provided on the outer wall of the sealing valve body 3. The sealing valve body 3 also has detachable mounting parts 4, which are embedded on both sides of the protective cover 8. By embedding multiple protrusions 21 into the inner wall of the tube body 1, the friction and locking force between the sleeves 2 and the tube body 1 are effectively increased, thereby avoiding the problem of loosening of the connection between the sealing valve body 3 and the tube body 1 due to long-term exposure to environmental factors such as oxidation and humid air, and preventing leakage of the extinguishing agent inside the tube body 1.

[0028] It is worth mentioning that the outer wall of the stem of the sealing valve body 3 is provided with several equally spaced inclined blocks 31 from bottom to top. The design of the inclined blocks 31 effectively increases the friction and locking force between the valve body 1 and the pipe body 1, ensuring the sealing performance.

[0029] It is worth mentioning that one of the sealing valve bodies 3 is equipped with a pressure signal device 6, and the pressure signal device 6 is equipped with a one-way valve 5. The other sealing valve body 3 is equipped with a pressure gauge 7. The outer wall of the sealing valve body 3 is equipped with a fixing groove 32. The pressure signal device 6 is responsible for detecting and monitoring the pressure of the extinguishing agent in the pipe body 1, which serves as a warning and facilitates back-end monitoring. The pressure signal device 6 usually has a pressure sensing element inside. These pressure sensing elements change with the pressure. The one-way valve 5 prevents the extinguishing agent from flowing back. The pressure gauge 7 is used by the staff to check the pressure in the pipe during inspection. The pressure signal device 6 and the pressure gauge 7 are well known technologies in this field, and will not be described in detail here. The pressure signal device 6 can be optionally omitted according to customer needs.

[0030] It is worth mentioning that the protective cover 8 is designed as a semi-enclosed type and fits snugly against the outer wall of the pressure signal device 6 or pressure gauge 7. The protective cover 8 has extensions 81 on both sides, each with a limiting groove 82 that abuts against the mounting component 4. The end face of the protective cover 8 has a protective edge 83, located near the pressure signal device 6 or pressure gauge 7. The limiting groove 82, when tightly abutting against the mounting component 4, not only effectively prevents the pipe body 1 from rotating but also protects against potential fire damage to the pressure signal device 6 and pressure gauge 7, thereby extending the alarm duration of the pressure signal device 6 and ensuring that back-end personnel can continuously receive alarm information. Furthermore, while providing protection, the protective cover 8 significantly increases the creepage distance, effectively preventing the large current generated by nearby switching equipment during opening and closing when the product is installed in the electrical cabinet from flowing to the pressure signal device 6 or pressure gauge 7, thus avoiding equipment damage and further ensuring the stable operation and safety of the system. The protective edge 83 further improves fire resistance and creepage performance. Simultaneously, the semi-enclosed design of the protective cover 8 enhances protection performance and facilitates quick disassembly. (Refer to the attached document.) Figure 2 The protective cover 8 is in a shape that tapers towards the axis, so that the protective cover 8 is connected and fixed to the sealing valve body 3 by an interference fit.

[0031] It is worth mentioning that the mounting part 4 is provided with an open groove 41 corresponding to the fixing groove 32. The entrance of the groove 41 tapers towards the middle. The entrance of the groove 41 is also provided with an arc 42. The groove 41 can rotate around the fixing groove 32 to adjust the position of the mounting part 43 on the outer wall of the sealing valve body 3. Its entrance tapers towards the middle to prevent the mounting part 4 from falling off. The arc 42 of the fixing groove 32 is designed to facilitate the opening of the entrance of the groove 41 for entry and effectively reduce the friction between the two.

[0032] It is worth mentioning that the mounting part 4 is provided with a mounting part 43 and is perpendicular to the mounting part 4. The mounting part 43 has mounting holes 44 on both sides and multiple bosses 45. The bosses 45 have threaded holes 46 for fixing to magnets. Screws are provided at the mounting holes 44 or the threaded holes 46 are used to fix magnets, or screws are provided at the screw holes 46. The tube body 1 is firmly fixed to the side wall of the fire extinguishing space by screw fixing or magnetic attraction.

[0033] It is worth mentioning that the convex bulges 21 are arranged from bottom to top. The design of each layer of convex bulges 21 ensures that the tube body 1 and the sleeve 2 are tightly connected, forming multiple sealing barriers to effectively prevent leakage of internal fire extinguishing agent.

[0034] It is worth mentioning that the tube body 1 is filled with fire extinguishing agents, specifically perfluorohexanone or heptafluoropropane. Perfluorohexanone is easy to clean or requires no cleaning, and is environmentally friendly and reliable. It also has excellent electrical insulation properties, ensuring that it will not damage electrical components in the power cabinet even during fire extinguishing, thus guaranteeing the safe operation of the power system. Heptafluoropropane is non-cleanable, low in toxicity, non-conductive, and environmentally friendly. Both fire extinguishing agents remain liquid in the tube body 1 under high pressure. The tube body 1 is made of ultra-high molecular weight polyamide with a molecular weight exceeding 5 million, possessing excellent properties of pressure resistance, wear resistance, and corrosion resistance. Furthermore, a temperature-sensing material is added, allowing the tube body 1 to automatically rupture under internal pressure at a specific temperature, achieving precise fire extinguishing.

[0035] The working principle of this utility model is described as follows:

[0036] When the external temperature of pipe body 1 rises to a specific value, such as 110°C, the liquid extinguishing agent inside pipe body 1 expands due to heat, breaks through the pipe wall and rapidly vaporizes. During this process, the extinguishing agent absorbs a large amount of heat, lowers the temperature of the burning material to below its ignition point, and isolates it from contact with the outside air, thereby achieving a rapid and efficient fire extinguishing effect. When the pressure of the extinguishing agent inside pipe body 1 returns to zero, it causes the pressure sensing element to shift or deform, triggering the switching mechanism inside the pressure signal device 6, which converts the pressure signal into an electrical signal and transmits it to the fire control center or the corresponding alarm device, or the backend of the monitoring equipment, to alert the staff.

[0037] The above design scheme enables the product to achieve the advantages of protective function, anti-loosening, good practicality, and convenience.

[0038] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A fire-tube type temperature-sensitive self-starting fire extinguishing device comprising a tube body (1), characterized in that: The outer wall of both ends of the pipe body (1) is sleeved with a sleeve (2) for contraction in the direction of the axis, the both ends of the pipe body (1) are provided with sealing valve bodies (3), and the sleeve (2) is tightly pressed against the end face of the pipe body (1), the inner wall of the sleeve (2) is uniformly provided with a plurality of convex blocks (21) with a circular dot as the axis and abutting against the outer wall of the pipe body (1), the outer wall of the sealing valve body (3) is provided with a protective cover (8), and the sealing valve body (3) is further provided with a detachable mounting piece (4) embedded in both sides of the protective cover (8).

2. The fire tube type temperature-sensitive self-starting fire extinguishing apparatus according to claim 1, characterized in that: The outer wall of the rod part of the sealing valve body (3) is provided with a plurality of inclined blocks (31) at equal intervals from bottom to top.

3. The fire tube type temperature-sensitive self-starting fire extinguishing apparatus according to claim 2, characterized in that: One of the sealing valve bodies (3) is provided with a pressure signaler (6) provided with a one-way valve (5), and the other sealing valve body (3) is provided with a pressure gauge (7), and the outer wall of the sealing valve body (3) is provided with a fixing groove (32).

4. The fire tube type temperature-sensitive self-starting fire extinguishing apparatus according to claim 3, characterized in that: The protective cover (8) is arranged in a semi-enclosed type and is attached to the outer wall of the pressure signaler (6) or the pressure gauge (7), both sides of the protective cover (8) are provided with an extension part (81) provided with a limiting groove (82) and abutting against the mounting piece (4), and the end face of the protective cover (8) is provided with a protective edge (83) arranged at the end face close to the pressure signaler (6) or the pressure gauge (7).

5. The fire tube type temperature-sensitive self-starting fire extinguishing apparatus according to claim 1, characterized in that: The mounting piece (4) is provided with an open type groove (41) corresponding to the fixing groove (32), the entrance of the groove (41) is contracted in the middle direction, and the entrance of the groove (41) is further provided with an arc part (42).

6. The fire tube type temperature-sensitive self-starting fire extinguishing apparatus according to claim 1, wherein: The mounting piece (4) is provided with a mounting part (43) in a perpendicular relationship with the mounting piece (4), both sides of the mounting part (43) are provided with mounting holes (44), the mounting part (43) is provided with a plurality of bosses (45), and the bosses (45) are provided with threaded holes (46) for fixing with magnets.

7. A tube-type fire detector according to any one of claims 2 to 6, wherein: The convex blocks (21) are arranged from bottom to top.

8. A tube-type fire detecting heat activated self-starting fire extinguishing apparatus according to any one of claims 2 to 6, wherein: The pipe body (1) is filled with fire extinguishing agent.

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