Connecting structure for fire-fighting smoke exhaust pipeline

Abstract

The utility model discloses a connecting structure for a fire-fighting smoke exhaust pipeline, which comprises a first smoke exhaust pipe and a second smoke exhaust pipe, the outer surface of the first smoke exhaust pipe is fixedly connected with a first flange, and the outer surface of the second smoke exhaust pipe is fixedly connected with a second flange. The left side face of the first flange and the right side face of the first flange are both fixedly connected with locking hanging buckles, and the left side face of the second flange and the right side face of the second flange are both fixedly connected with padlocks. According to the device, the first smoke exhaust pipe and the second smoke exhaust pipe can be quickly positioned and butted in a manner of preliminarily clamping the clamping pipe joint and the clamping block, the operation is simple and convenient, the construction efficiency is improved, the padlock is matched with the locking hanging buckle, the fastening can be completed through handle operation, the positioning pin further ensures that the connection is stable, the mounting process is easy and efficient, and the practicability is high. The sealing ring clamped by the check ring is extruded when the first smoke exhaust pipe is inserted, a gap is effectively filled, a good sealing effect is achieved, and smoke leakage can be effectively prevented.

Description

Technical Field

[0001] This utility model relates to the field of building fire protection, and in particular to a connection structure for fire smoke exhaust ducts. Background Technology

[0002] Fire exhaust ducts are specialized systems designed to remove smoke from buildings during a fire. They are typically made of metal (such as galvanized steel or stainless steel) or fire-resistant composite materials, possessing excellent fire resistance, high-temperature resistance, and corrosion resistance. During a fire, the spread of flames produces large amounts of dense smoke. This smoke not only reduces visibility and hinders evacuation but may also contain toxic and harmful substances, posing a serious threat to life. The role of fire exhaust ducts is to rapidly remove smoke from buildings in such emergencies through mechanical or natural smoke extraction, creating favorable conditions for evacuation and fire rescue.

[0003] Conventional fire exhaust ducts mostly use bolt and nut connections. While this method can ensure the stability of the duct connection to a certain extent, it is cumbersome to install, requiring a lot of time to align the bolt holes and tighten the nuts. This significantly prolongs the construction period and increases labor costs when installing fire exhaust systems in large buildings. Moreover, during the later maintenance phase, bolts and nuts are prone to corrosion and jamming due to long-term use, making disassembly difficult and causing great inconvenience to the maintenance and replacement of the ducts. Therefore, we propose a connection structure for fire exhaust ducts to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a connection structure for fire-fighting smoke exhaust pipes to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A connecting structure for fire-fighting smoke exhaust ducts includes a first smoke exhaust pipe and a second smoke exhaust pipe. A first flange is fixedly connected to the outer surface of the first smoke exhaust pipe, and a second flange is fixedly connected to the outer surface of the second smoke exhaust pipe. Locking hooks are fixedly connected to the left and right sides of the first flange, and latches are fixedly connected to the left and right sides of the second flange. A positioning hook is fixedly connected to the outer surface of each latch, and a positioning pin is engaged with the inner wall of each locking hook. A pipe clamping connector is fixedly connected to the bottom surface of the first smoke exhaust pipe, and two clamping blocks are fixedly connected to the inner wall of the second smoke exhaust pipe. The first smoke exhaust pipe is engaged with the second smoke exhaust pipe through the pipe clamping connector and the clamping blocks.

[0007] In a further embodiment, a protective ring is fitted onto the outer surface of both the first exhaust pipe and the second exhaust pipe.

[0008] In a further embodiment, the inner walls of the first exhaust pipe and the second exhaust pipe are both fixedly connected with reinforcing cores.

[0009] In a further embodiment, each of the two latches is fixedly connected to a handle on one of their opposite sides, and the outer surface of each handle is provided with anti-slip texture.

[0010] In a further embodiment, a retaining ring is fixedly connected to the inner wall of the second exhaust pipe, and a sealing ring is snapped into the inner wall of the retaining ring.

[0011] In a further embodiment, a sign is provided on the front of the second exhaust pipe, and the back of the sign is fixedly connected to the front of the second exhaust pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This device uses a clamping connector and a clamping block for initial engagement, enabling quick positioning and connection of the first and second smoke exhaust pipes. Operation is simple and construction efficiency is improved. The locking and fastening hooks work together, allowing for easy tightening via the handle. The positioning pin further ensures a secure connection, making installation easy and efficient. The sealing ring, secured by the retaining ring, is compressed when the first smoke exhaust pipe is inserted, effectively filling gaps and achieving a good seal. This effectively prevents smoke leakage and ensures the normal operation of the fire exhaust system. During use, the reinforcing cores on the inner walls of the first and second smoke exhaust pipes enhance the overall structural strength of the pipeline, enabling it to withstand certain pressure and external impacts. Combined with the protective ring, the pipeline is protected from external damage, extending its service life. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of the connection structure for fire exhaust ducts.

[0015] Figure 2 This is a side sectional view of the first smoke exhaust pipe in the connection structure for fire smoke exhaust ducts.

[0016] Figure 3 A three-dimensional structural diagram of the first smoke exhaust pipe in the connecting structure for fire smoke exhaust ducts.

[0017] Figure 4 A three-dimensional structural diagram of the second smoke exhaust pipe in the connecting structure for fire smoke exhaust ducts.

[0018] In the diagram: 1. First exhaust pipe; 2. Second exhaust pipe; 3. Protective ring; 4. Identification plate; 5. Locking hook; 6. First flange; 7. Second flange; 8. Reinforcing core; 9. Positioning pin; 10. Lock; 11. Handle; 12. Positioning hook; 13. Pipe clamping connector; 14. Retaining ring; 15. Sealing ring; 16. Locking block. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0020] Please see Figure 1-4 In this utility model, a connection structure for fire-fighting smoke exhaust pipes includes a first smoke exhaust pipe 1 and a second smoke exhaust pipe 2. A first flange 6 is fixedly connected to the outer surface of the first smoke exhaust pipe 1, and a second flange 7 is fixedly connected to the outer surface of the second smoke exhaust pipe 2. Locking hooks 5 are fixedly connected to the left and right sides of the first flange 6, and latches 10 are fixedly connected to the left and right sides of the second flange 7. A positioning hook 12 is fixedly connected to the outer surface of each latch 10, and a positioning pin 9 is engaged with the inner wall of each locking hook 5. A pipe clamping connector 13 is fixedly connected to the bottom surface of the first smoke exhaust pipe 1, and two locking blocks 16 are fixedly connected to the inner wall of the second smoke exhaust pipe 2. The first smoke exhaust pipe 1 is engaged with the second smoke exhaust pipe 2 through the pipe clamping connector 13 and the locking blocks 16. The pipe clamping connector 13 of the first smoke exhaust pipe 1 is aligned with the locking blocks 16 on the inner wall of the second smoke exhaust pipe 2, and the second smoke exhaust pipe 2 is inserted to make the first smoke exhaust pipe 1... The first smoke pipe 1 and the second smoke pipe 2 are initially snapped together. As the first smoke pipe 1 is inserted deeper, the sealing ring 15 is squeezed to achieve a seal. Then, the first flange 6 and the second flange 7 are aligned, and the positioning hook 12 on the latch 10 is aligned with the locking hook 5. Then, the handle 11 is operated to make the latch 10 and the locking hook 5 tightly engage. Next, the positioning pin 9 is inserted into the inner wall of the locking hook 5 to complete the connection and tightening. The installation process is easy and efficient. The sealing ring 15, which is snapped together by the retaining ring 14, is squeezed when the first smoke pipe 1 is inserted, effectively filling the gap and achieving a good sealing effect. It can effectively prevent smoke leakage and ensure the normal operation of the fire smoke exhaust system. During use, the reinforcing core 8 on the inner wall of the first smoke pipe 1 and the second smoke pipe 2 enhances the overall structural strength of the pipeline, enabling it to withstand certain pressure and external impact. Together with the protective ring 3, it protects the pipeline from damage by external factors and extends the service life of the pipeline.

[0021] The outer surfaces of the first exhaust pipe 1 and the second exhaust pipe 2 are both fitted with protective rings 3, which provide protection for the pipes. The inner walls of the first exhaust pipe 1 and the second exhaust pipe 2 are both fixedly connected with reinforcing cores 8, which improve the structural strength of the pipes. The two latches 10 are fixedly connected with handles 11 on their opposite sides. Each handle 11 has anti-slip textures on its outer surface, which makes it easy for workers to operate the latches 10.

[0022] A retaining ring 14 is fixedly connected to the inner wall of the second exhaust pipe 2, and a sealing ring 15 is snapped into the inner wall of the retaining ring 14. The sealing ring 15 can improve the sealing performance of the pipe. A sign 4 is provided on the front of the second exhaust pipe 2, and the back of the sign 4 is fixedly connected to the front of the second exhaust pipe 2. The sign 4 can improve the identification of this device.

[0023] The working principle of this utility model is as follows:

[0024] In use, first move the device to the location of use, then align the clamping connector 13 of the first exhaust pipe 1 with the clamping block 16 on the inner wall of the second exhaust pipe 2, and insert the second exhaust pipe 2 to initially clamp the first exhaust pipe 1 and the second exhaust pipe 2 together. As the first exhaust pipe 1 is inserted deeper, the sealing ring 15 is squeezed to achieve a seal. Then align the first flange 6 and the second flange 7, align the positioning hook 12 on the latch 10 with the locking hook 5, and then operate the handle 11 to make the latch 10 and the locking hook 5 tightly engage. Next, insert the positioning pin 9 into the inner wall of the locking hook 5 to complete the connection. At the same time, the reinforcing core 8 on the inner wall of the first exhaust pipe 1 and the second exhaust pipe 2 enhances the structural strength of the pipe, and the protective ring 3 on the outer surface protects the pipe.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A connection structure for fire-fighting smoke exhaust ducts, characterized in that: The system includes a first exhaust pipe (1) and a second exhaust pipe (2). The outer surface of the first exhaust pipe (1) is fixedly connected to a first flange (6), and the outer surface of the second exhaust pipe (2) is fixedly connected to a second flange (7). The left side and the right side of the first flange (6) are both fixedly connected to locking hooks (5), and the left side and the right side of the second flange (7) are both fixedly connected to latches (10). The outer surface of each latch (10) is fixedly connected to a positioning hook (12), and the inner wall of each locking hook (5) is secured with a positioning pin (9). The bottom surface of the first exhaust pipe (1) is fixedly connected to a pipe clamping connector (13), and the inner wall of the second exhaust pipe (2) is fixedly connected to two clamping blocks (16). The first exhaust pipe (1) is clamped to the second exhaust pipe (2) through the pipe clamping connector (13) and the clamping blocks (16).

2. The connection structure for fire-fighting smoke exhaust ducts according to claim 1, characterized in that: The outer surface of the first exhaust pipe (1) and the outer surface of the second exhaust pipe (2) are both fitted with protective rings (3).

3. The connection structure for fire-fighting smoke exhaust ducts according to claim 1, characterized in that: The inner wall of the first exhaust pipe (1) and the inner wall of the second exhaust pipe (2) are both fixedly connected with reinforcing cores (8).

4. The connection structure for fire-fighting smoke exhaust ducts according to claim 1, characterized in that: Each of the two latches (10) has a handle (11) fixedly connected to one side away from the other, and the outer surface of each handle (11) is provided with anti-slip texture.

5. A connection structure for fire-fighting smoke exhaust ducts according to claim 1, characterized in that: The inner wall of the second exhaust pipe (2) is fixedly connected with a retaining ring (14), and the inner wall of the retaining ring (14) is fitted with a sealing ring (15).

6. A connection structure for fire-fighting smoke exhaust ducts according to claim 1, characterized in that: The front of the second exhaust pipe (2) is provided with a sign (4), and the back of the sign (4) is fixedly connected to the front of the second exhaust pipe (2).

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