Pipeline joint of fire-fighting ventilation and smoke exhaust pipeline

Abstract

The utility model discloses a pipeline joint of a fire-fighting ventilation smoke exhaust pipeline, which relates to the field of fire-fighting pipelines, and comprises a pipeline, a rectangular flange plate is arranged at the end part of the pipeline, an exhaust mechanism is arranged above the rectangular flange plate, and the exhaust mechanism comprises a hollow pipe, a second hole plate, a limiting plate, a second spring and a third spring. The second hole plate is fixedly installed at the end, close to the rectangular flange plate, of the hollow pipe, the limiting plate is arranged in the hollow pipe, the limiting plate and the second hole plate are fixedly connected through a second spring, and the side, away from the second spring, of the limiting plate is fixedly connected with a third spring. And the other end of the third spring is fixedly connected to the inner wall of the hollow pipe, and exhaust holes are formed in the two sides of the hollow pipe. According to the utility model, gas in the pipeline is discharged normally, so that the gas pressure in the pipeline can be effectively controlled when a fire disaster occurs, and the pipeline joint is prevented from loosening or even being damaged and separated.

Description

Technical Field

[0001] The utility model relates to the field of fire-fighting pipelines, in particular to a pipeline joint of a fire-fighting ventilation and smoke exhaust pipeline. Background Art

[0002] The development of fire ventilation and smoke exhaust ducts can be traced back to the Industrial Revolution. With the continuous progress of society and economy, the scale of urban construction has continued to expand, and the number of high-rise buildings and underground facilities has continued to increase. In these buildings, due to the closed internal space, when a fire occurs, it will lead to the accumulation of smoke and toxic gases, posing a threat to the life safety of personnel. In order to improve the safety of buildings, the design and construction of fire ventilation and smoke exhaust ducts have become increasingly important.

[0003] Pipe joints are an indispensable part of pipeline connection, mainly used to connect two sections of pipelines to ensure smooth flow of fluid in the pipeline. As pipelines are used more and more widely, pipe joints, as key components of pipeline connection, have also begun to receive attention.

[0004] The existing patent CN219656236U fire ventilation and smoke exhaust duct includes a fire duct and a telescopic duct, the fire duct is provided with a first mounting hole, the telescopic duct is provided with a second mounting hole, the telescopic duct is slidably connected with the fire duct, the telescopic duct is provided with a limit slot, the threaded shaft is driven to rotate by turning the handle, the threaded shaft is driven to rotate the limit block, the limit block is retracted into the fixed block, the fixation of the telescopic duct can be released, the telescopic duct is pulled, and the telescopic duct is pulled out of the fire duct to adjust the length of the fire ventilation duct, which can be adjusted to the corresponding length according to the installation requirements, after the adjustment, the handle is reversed to allow the limit block to be inserted into the limit slot of the telescopic duct, and the telescopic duct is limited and fixed, and the length of the fire ventilation duct can be adjusted according to the installation requirements during use, and the adjustment process is simple, convenient, time-saving and labor-saving. However, it is not considered that when a fire occurs, thick smoke and harmful gases enter the duct, and because the duct is in a sealed state, the air pressure will increase, resulting in loosening or even damage of the duct joint, and eventually causing the duct to fall off and cause harm to personnel.

[0005] Therefore, it is necessary to propose a pipe joint for fire-fighting ventilation and smoke exhaust pipes to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a pipe joint for a fire-fighting ventilation and smoke exhaust pipe, so as to solve the problem that when a fire occurs, thick smoke and harmful gases enter the pipe, and the air pressure in the pipe is increased due to the sealed state, causing the pipe joint to loosen or even be damaged.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pipe joint for a fire-fighting ventilation and smoke exhaust pipe, comprising a pipe, a rectangular flange is provided at the end of the pipe, an exhaust mechanism is provided above the rectangular flange, the exhaust mechanism comprises a hollow pipe, a second perforated plate, a limit plate, a second spring and a third spring, the second perforated plate is fixedly installed at one end of the hollow pipe close to the rectangular flange, the limit plate is arranged inside the hollow pipe, the limit plate and the second perforated plate are fixedly connected by the second spring, the side of the limit plate away from the second spring is fixedly connected to the third spring, and the other end of the third spring is fixedly connected to the inner wall of the hollow pipe, exhaust holes are opened on both sides of the hollow pipe, and the exhaust holes are located on both sides of the third spring, the hollow pipe is fixedly installed on one side of the rectangular flange, and the hollow pipe is connected to the interior of the pipe.

[0008] Preferably, a filter box is provided above the hollow tube, a first perforated plate is fixedly installed above the filter box, a small wind power generation device is provided inside the filter box, and the small wind power generation device is fixedly connected to one side of the first perforated plate, a battery is provided at one end of the first perforated plate close to the small wind power generation device, and an LED lamp is fixedly connected to the side of the first perforated plate away from the small wind power generation device.

[0009] Preferably, a filter screen and activated carbon cloth are provided on the inner wall of the filter box, the filter screen is installed at the lower end of the small wind power generation device, and the activated carbon cloth is installed at the upper end of the small wind power generation device.

[0010] Preferably, exhaust pipes are arranged on both sides of the hollow tube, and the hollow tube is connected to the filter box through the exhaust pipes.

[0011] Preferably, two rectangular flanges and two pipes are provided respectively, and the rectangular flanges are provided on both sides of the hollow pipe respectively, and a sealing ring is also provided on the side of the rectangular flange away from the pipe.

[0012] Preferably, the two rectangular flanges are fixed by bolts, and the end of the bolt away from the nut is connected to the nut through threaded cooperation. A first spring is sleeved on the middle outer ring of the bolt, and the two ends of the first spring are movably fitted on the sides of the two rectangular flanges close to each other, and the first spring is in a stretched state.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The utility model ensures that the gas pressure in the pipeline can be effectively controlled in the event of a fire by discharging the gas in the pipeline normally, preventing the pipeline joints from loosening or even being damaged and detached, and maintaining the sealing of the pipeline for normal operation;

[0015] 2. When a fire occurs and the power supply facilities may stop operating, the utility model utilizes the gas in the pipeline to convert into weak electricity to provide power supply for the LED lamp, thereby providing guidance for the trapped persons to a safe exit. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a schematic diagram of the pipe joint structure of the fire-fighting ventilation and smoke exhaust pipe.

[0017] Figure 2 It is a schematic diagram of the pipe joint assembly structure of the fire-fighting ventilation and smoke exhaust pipe of the utility model.

[0018] Figure 3 The utility model is a schematic diagram of the cross-sectional structure of a pipe joint of a fire-fighting ventilation and smoke exhaust pipe.

[0019] Figure 4 For this utility model Figure 3 Enlarged view of point A in the middle.

[0020] Figure 5 It is a schematic diagram of the exhaust mechanism structure of the utility model.

[0021] In the figure: 1. pipeline; 2. rectangular flange; 3. bolt; 4. first spring; 5. nut; 6. sealing ring; 7. filter box; 8. first perforated plate; 9. LED lamp; 10. hollow tube; 11. second perforated plate; 12. exhaust pipe; 13. second spring; 14. third spring; 15. limit plate; 16. filter; 17. small wind power generation device; 18. activated carbon cloth; 19. battery. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The utility model provides Figure 1-Figure 5 The pipe joint of a fire-fighting ventilation and smoke exhaust pipe shown in the figure includes a pipe 1, which is a common fire-fighting ventilation and smoke exhaust pipe. A rectangular flange 2 is provided at the end of the pipe 1, and the rectangular flange 2 is a component used to connect and fix the pipe 1; when working, the rectangular flange 2 is put on the front end of the pipe 1.

[0024] Furthermore, two rectangular flanges 2 and two pipes 1 are provided respectively, and the rectangular flanges 2 are provided on both sides of the hollow tube 10 respectively. A sealing ring 6 is also provided on the side of the rectangular flange 2 away from the pipe 1. The sealing ring 6 is a common component for preventing gas leakage. The two rectangular flanges 2 are fixed by bolts 3. The end of the bolt 3 away from the nut is connected with a nut 5 by threaded cooperation. A first spring 4 is sleeved on the middle outer ring of the bolt 3. The two ends of the first spring 4 are movably fitted on the sides of the two rectangular flanges 2 close to each other, and the first spring 4 is in a stretched state. The role of the first spring 4 here is to increase the preload force of the bolt 3. When working, the bolt 3 passes through the first spring 4 provided between the two rectangular flanges 2 to connect the two rectangular flanges 2, and then the nut 5 tightens the bolt 3, thereby realizing a stable connection between the two pipes 1 and effectively preventing the screws from loosening due to vibration caused by the increase of air pressure in the pipe 1.

[0025] Furthermore, the exhaust mechanism pushes the limit plate 15 to exhaust gas by increasing the gas pressure in the pipeline 1, and the gas pressure can be automatically controlled without the help of external factors.

[0026] An exhaust mechanism is arranged above the rectangular flange 2, and the exhaust mechanism includes a hollow tube 10, a second perforated plate 11, a limiting plate 15, a second spring 13 and a third spring 14. The hollow tube 10 is fixedly installed on one side of the rectangular flange 2, and exhaust pipes 12 are arranged on both sides of the hollow tube 10. The second perforated plate 11 is fixedly installed on one end of the hollow tube 10 close to the rectangular flange 2, and a limiting plate 15 is arranged inside the hollow tube 10. The limiting plate 15 and the second perforated plate 11 are fixedly connected through the second spring 13. The side of the limiting plate 15 away from the second spring 13 is fixedly connected with the third spring 14, and the other end of the third spring 14 is fixedly connected to the inner wall of the hollow tube 10. Exhaust holes are opened on both sides of the hollow tube 10, and the exhaust holes are located on both sides of the third spring 14. The hollow tube 10 is fixedly installed on one side of the rectangular flange 2, and the hollow tube 10 is connected to the inside of the pipeline 1.

[0027] During specific operation, when the air pressure in the pipeline 1 reaches a certain critical value, the gas in the pipeline 1 will enter the inner cavity of the hollow tube 10 through the second hole plate 11, thereby pushing the limit plate 15, and the limit plate 15 stretches the second spring 13 and compresses the third spring 14. When the limit plate 15 exceeds the exhaust hole opened on the hollow tube 10, the gas in the pipeline 1 will be discharged through the exhaust pipe 12. When the pressure in the pipeline 1 decreases, the third spring 14 and the second spring 13 are reset, pushing the limit plate 15 back to the original position, realizing the normal discharge of the gas in the pipeline 1, and at the same time ensuring that the air pressure in the pipeline 1 can be effectively controlled when a fire occurs, and maintaining the sealing of the pipeline 1 for normal normal operation.

[0028] Furthermore, a filter box 7 is arranged above the hollow tube 10, and a filter screen 16 and an activated carbon cloth 18 are arranged on the inner wall of the filter box 7. The filter screen 16 and the activated carbon cloth 18 are disposable and replaceable consumables. The filter screen 16 is installed at the lower end of the small wind power generation device 17, and the activated carbon cloth 18 is installed at the upper end of the small wind power generation device 17. A first perforated plate 8 is fixedly installed above the filter box 7, and a small wind power generation device 17 is arranged inside the filter box 7. The small wind power generation device 17 is a common ventilation equipment, and a mechanism capable of generating electricity is arranged inside, which will not be described in detail here. The small wind power generation device 17 is fixedly connected to one side of the first perforated plate 8, and a battery 19 is arranged on the side of the small wind power generation device 17 close to the first perforated plate 8, and an LED lamp 9 is fixedly connected to the side of the first perforated plate 8 away from the small wind power generation device 17. The hollow tube 10 and the filter box 7 are connected through an exhaust pipe 12.

[0029] During specific operation, the gas in the pipeline 1 enters the filter box 7 through the exhaust pipe 12. After the dust is filtered through the filter 16, the gas is blown to the small wind power generation device 17, blowing the fan blades on the small wind power generation device 17 to rotate. When the fan blades rotate, the power conversion mechanism inside the small wind power generation device 17 is driven to generate electric energy, which is stored in the battery 19. The battery 19 then powers the LED lamp 9, so that the LED lamp 9 lights up. The small wind power generation device 17 is a common wind power generation device in the prior art and will not be described in detail here. The filtered gas is discharged outward through the first perforated plate 8 by the wind force of the small wind power generation device 17, so that when a fire occurs and the power supply facilities may stop operating, the gas in the pipeline 1 is converted into weak electricity to provide power supply for the LED lamp 9, thereby providing guidance for a safe exit for the trapped persons.

Claims

1. A pipe joint for a fire-fighting ventilation and smoke exhaust pipe, comprising a pipe (1), wherein a rectangular flange (2) is provided at the end of the pipe (1), characterized in that: An exhaust mechanism is arranged above the rectangular flange (2), and the exhaust mechanism comprises a hollow tube (10), a second perforated plate (11), a limiting plate (15), a second spring (13) and a third spring (14); the second perforated plate (11) is fixedly mounted on one end of the hollow tube (10) close to the rectangular flange (2); the limiting plate (15) is arranged inside the hollow tube (10); the limiting plate (15) and the second perforated plate (11) are fixedly connected via the second spring (13); a side of the limiting plate (15) away from the second spring (13) is fixedly connected to the third spring (14), and the other end of the third spring (14) is fixedly connected to the inner wall of the hollow tube (10); exhaust holes are provided on both sides of the hollow tube (10), and the exhaust holes are located on both sides of the third spring (14); the hollow tube (10) is fixedly mounted on one side of the rectangular flange (2), and the hollow tube (10) is communicated with the inside of the pipeline (1).

2. A pipe joint for a fire-fighting ventilation and smoke exhaust pipe according to claim 1, characterized in that: A filter box (7) is arranged above the hollow tube (10), a first perforated plate (8) is fixedly mounted above the filter box (7), a small wind power generation device (17) is arranged inside the filter box (7), and the small wind power generation device (17) is fixedly connected to one side of the first perforated plate (8), a storage battery (19) is arranged at one end of the first perforated plate (8) close to the small wind power generation device (17), and an LED lamp (9) is fixedly connected to one side of the first perforated plate (8) away from the small wind power generation device (17).

3. A pipe joint for a fire-fighting ventilation and smoke exhaust pipe according to claim 2, characterized in that: A filter screen (16) and an activated carbon cloth (18) are arranged on the inner wall of the filter box (7); the filter screen (16) is installed at the lower end of the small wind power generation device (17); and the activated carbon cloth (18) is installed at the upper end of the small wind power generation device (17).

4. The pipe joint for fire-fighting ventilation and smoke exhaust pipe according to claim 2, characterized in that: Exhaust pipes (12) are arranged on both sides of the hollow pipe (10), and the hollow pipe (10) and the filter box (7) are connected via the exhaust pipes (12).

5. The pipe joint for fire-fighting ventilation and smoke exhaust pipe according to claim 1, characterized in that: The rectangular flange (2) and the pipeline (1) are each provided with two, and the rectangular flange (2) is respectively provided on both sides of the hollow pipe (10), and a sealing ring (6) is also provided on the side of the rectangular flange (2) away from the pipeline (1).

6. A pipe joint for a fire-fighting ventilation and smoke exhaust pipe according to claim 5, characterized in that: The two rectangular flanges (2) are fixed by bolts (3), one end of the bolt (3) away from the nut is connected to a nut (5) by threaded cooperation, a first spring (4) is sleeved on the middle outer ring of the bolt (3), the two ends of the first spring (4) are movably fitted on the mutually close sides of the two rectangular flanges (2), and the first spring (4) is in a stretched state.

Images