Fireproof check valve and exhaust passage structure convenient to disassemble

Abstract

The utility model discloses a fireproof check valve and exhaust passage structure convenient to disassemble, which comprises an exhaust passage and a fireproof check valve, the fireproof check valve comprises a valve body and a mounting plate fixed on the valve body, the mounting plate is clamped on the outer side of the exhaust passage, the exhaust passage is fixedly connected with a fixed seat plate through a screw, the fixed seat plate is fixedly connected with a connecting plate, and the connecting plate is fixedly connected with the valve body. The connecting plate extends out of the mounting plate, a clamping plate matched with the connecting plate is fixedly connected to the mounting plate, and the clamping plate is attached to the connecting plate and connected with the connecting plate through a bolt. The fixing seat plate and the connecting plate are arranged on the exhaust passage through the screws, the clamping plate is fixed on the mounting seat, the fireproof check valve is mounted through fixed connection of the clamping plate and the connecting plate, and due to the fact that a bolt structure is adopted in the repeated dismounting and mounting process, thread loosening cannot be caused, the repeated mounting and dismounting position is not on the exhaust passage, and mounting is convenient. And maintenance caused by damage to the exhaust passage due to repeated disassembly of the fireproof check valve is avoided, and the use is very convenient.

Description

Technical Field

[0001] The utility model belongs to the field of building pipelines, and particularly relates to a fireproof check valve and exhaust duct structure which is convenient to disassemble. Background Art

[0002] In buildings, exhaust ducts are used to discharge exhaust gases such as fumes, water vapor or odors generated in kitchens, bathrooms or toilets. These exhaust ducts are usually connected to the outside of the building through a smoke extractor or ventilation system to ensure indoor air quality and comfort.

[0003] Fire check valves are a critical component used in fire protection systems to ensure that flames or smoke cannot flow back into the fire protection system in the event of a fire. They are usually installed in water pipes or gas pipes, allowing fluid to flow in one direction under normal conditions, but in the event of a fire, they will prevent flames or smoke from flowing back into the pipe system.

[0004] The current fire check valve can refer to the patent with announcement number CN106704646B, which discloses a fire check valve, including a valve core located on the outside of the exhaust duct and an air guide cover located on the inside of the exhaust duct. A fireproof closed one-way valve structure is installed in the valve core, and a mounting plate that is stuck on the outside of the exhaust duct is fixed to the outside of the valve core, and the mounting plate is fixed to the exhaust duct by screws.

[0005] During the operation of the fire check valve, the oil contained in the flue gas will adhere to the valve plate, which needs to be cleaned occasionally, so it needs to be disassembled. The fire check valve is fixed to the exhaust duct with screws. Repeated disassembly can easily cause the threaded connection to loosen, damaging the exhaust duct, requiring maintenance of the exhaust duct, which is inconvenient to use. Utility Model Content

[0006] The utility model provides a fire check valve and exhaust duct structure which is easy to disassemble, so as to solve the technical problem that during the operation of the fire check valve, oil contained in the smoke will adhere to the valve plate, which needs to be cleaned occasionally and thus needs to be disassembled, while the fire check valve is fixed to the exhaust duct by screws, and repeated disassembly is likely to cause the threaded connection to loosen, thus damaging the exhaust duct and requiring the exhaust duct to be repaired, resulting in inconvenient use.

[0007] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a fire check valve and exhaust duct structure that is easy to disassemble, including an exhaust duct and a fire check valve, the fire check valve including a valve body and a mounting plate fixed on the valve body, the exhaust duct is provided with a mounting hole corresponding to the valve body, the mounting plate is clamped on the outside of the exhaust duct, the exhaust duct is fixedly connected to a fixed seat plate by screws, the fixed seat plate is fixedly connected to a connecting plate, the connecting plate extends out of the mounting plate, the mounting plate is fixedly connected to a splint that cooperates with the connecting plate, the splint and the connecting plate are arranged in a close fit, and the splint and the connecting plate are connected by bolts.

[0008] By adopting the above technical solution, a fixed seat plate and a connecting plate are set on the exhaust duct by screws, a clamping plate is fixed on the mounting seat, and the fire check valve is installed by fixing the connection through the clamping plate and the connecting plate. Since the bolt structure is used in the repeated disassembly and installation process, the thread will not be loosened, and the repeated installation and disassembly position is not on the exhaust duct, so the exhaust duct will not be damaged, thus avoiding the exhaust duct from being damaged by repeated disassembly of the fire check valve. The use is very convenient, and since the screws do not need to be removed, the number of screws can be increased to ensure the installation strength.

[0009] Preferably, both sides of the connecting plate are provided with clamping plates, and the clamping plates are fixed on the mounting plate.

[0010] By adopting the above technical solution, the connection strength is high and the connectivity is good.

[0011] Preferably, a clamping plate seat plate is welded to the mounting plate, and two clamping plates are welded to the clamping plate seat plate.

[0012] By adopting the above technical solution, the two clamps can be welded to the clamp base plate first, the parts are easy to turn around and the welding is convenient. Finally, the clamp base plate is welded to the mounting plate, and the welding is done in one time, which is convenient for construction.

[0013] Preferably, a pad located between the two clamping plates is also welded on the clamping plate seat plate.

[0014] By adopting the technical solution, the two clamping plates are connected, and the structural strength is high.

[0015] Preferably, the fixed seat plate, the connecting plate and the clamping plate are each provided at least at one location at the top end and the bottom end of the mounting plate.

[0016] By adopting the above technical solution, the fire check valve is fixed both above and below, and the overall fixing effect is good.

[0017] Preferably, the fixed seat plate, the connecting plate and the clamping plate are arranged at two locations at the top and the bottom of the mounting plate, and the two locations are arranged side by side in the horizontal direction.

[0018] By adopting the above technical solution, the four corners are fixed respectively, so the structure is firm and the service life is long.

[0019] The beneficial effects of the utility model are embodied in that a fixed seat plate and a connecting plate are set on the exhaust duct by means of screws, a clamping plate is fixed on the mounting seat, and the installation of the fire check valve is achieved through a fixed connection between the clamping plate and the connecting plate. Since a bolt structure is used in the process of repeated disassembly and installation, loosening of the thread will not be caused, and the position of repeated installation and disassembly is not on the exhaust duct, so damage to the exhaust duct will not be caused, thus avoiding maintenance of the exhaust duct caused by repeated disassembly of the fire check valve. The use is very convenient, and since the screws do not need to be disassembled, the number of screws can also be increased to ensure the installation strength.

[0020] Other features and advantages of the utility model will be described in the subsequent description, and in part will become apparent from the description, or be understood by implementing the utility model; the main purpose and other advantages of the utility model can be realized and obtained through the solutions particularly pointed out in the description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the connecting plate of an embodiment of the utility model.

[0023] Figure numerals: 1. Exhaust duct; 2. Fire check valve; 3. Valve body; 4. Mounting plate; 5. Screw; 6. Fixed seat plate; 7. Connecting plate; 8. Clamp; 9. Bolt; 10. Clamp seat plate; 11. Pad. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is described in detail below through embodiments. The following embodiments are merely exemplary and can only be used to explain and illustrate the technical solution of the present invention, but cannot be interpreted as limiting the technical solution of the present invention.

[0025] Combination Figure 1 and Figure 2 A fire check valve and exhaust duct structure that is easy to disassemble includes an exhaust duct 1 and a fire check valve 2. The fire check valve 2 includes a valve body 3 and a mounting plate 4 fixed on the valve body 3. The exhaust duct 1 is provided with a mounting hole corresponding to the valve body 3. The mounting plate 4 is clamped on the outside of the exhaust duct 1. The exhaust duct 1 is fixedly connected with a fixed seat plate 6 by screws 5. The fixed seat plate 6 is fixedly connected with a connecting plate 7. The connecting plate 7 extends out of the mounting plate 4. The mounting plate 4 is fixedly connected with a clamping plate 8 that cooperates with the connecting plate 7. The clamping plate 8 is fitted with the connecting plate 7, and the clamping plate 8 and the connecting plate 7 are connected by bolts 9.

[0026] A fixed seat plate 6 and a connecting plate 7 are set on the exhaust duct 1 by using screws 5, and a clamping plate 8 is fixed on the mounting seat. The fire check valve 2 is installed by fixing the clamping plate 8 and the connecting plate 7. Since the bolt 9 structure is used in the repeated disassembly and installation process, the thread will not be loosened, and the position of repeated installation and disassembly is not on the exhaust duct 1, so the exhaust duct 1 will not be damaged, and the exhaust duct 1 is avoided from being damaged by repeated disassembly of the fire check valve 2. The use is very convenient.

[0027] Both sides of the connecting plate 7 are provided with clamping plates 8, and the clamping plates 8 are fixed on the mounting plate 4, with high connection strength and good connectivity.

[0028] A clamping plate seat plate 10 is welded on the mounting plate 4, and two clamping plates 8 are welded on the clamping plate seat plate 10. The two clamping plates 8 can be welded on the clamping plate seat plate 10 first, and the parts are easy to turn over and the welding is convenient. Finally, the clamping plate seat plate 10 is welded on the mounting plate 4, and the welding is only required once, which is convenient for construction.

[0029] A pad 11 located between the two clamping plates 8 is welded to the clamping plate seat plate 10 to connect the two clamping plates 8, thereby providing a high structural strength.

[0030] The fixed seat plate 6, the connecting plate 7 and the clamping plate 8 are arranged at least at one place at the top and the bottom of the mounting plate 4, and the fire check valve 2 is fixed up and down, and the overall fixing effect is good.

[0031] The fixed seat plate 6, the connecting plate 7 and the clamping plate 8 are arranged at two locations on the top and bottom of the mounting plate 4, the two locations are arranged side by side in the horizontal direction, the four locations are fixed and located at the four corners respectively, the structure is firm and the service life is long.

[0032] The above description is only a preferred specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that a technician familiar with the technical field thinks of within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A fire check valve and exhaust duct structure that is easy to disassemble, characterized in that: The invention comprises an exhaust duct (1) and a fire check valve (2), wherein the fire check valve (2) comprises a valve body (3) and a mounting plate (4) fixed on the valve body (3), the exhaust duct (1) is provided with a mounting hole corresponding to the valve body (3), the mounting plate (4) is clamped on the outside of the exhaust duct (1), the exhaust duct (1) is fixedly connected with a fixed seat plate (6) by means of screws (5), the fixed seat plate (6) is fixedly connected with a connecting plate (7), the connecting plate (7) extends out of the mounting plate (4), the mounting plate (4) is fixedly connected with a clamping plate (8) matching with the connecting plate (7), the clamping plate (8) is arranged to fit with the connecting plate (7), and the clamping plate (8) and the connecting plate (7) are connected by bolts (9).

2. The fire-proof check valve and exhaust duct structure that is easy to disassemble according to claim 1 is characterized in that: Both sides of the connecting plate (7) are provided with clamping plates (8), and the clamping plates (8) are fixed on the mounting plate (4).

3. The fire-proof check valve and exhaust duct structure that is easy to disassemble according to claim 2 is characterized in that: A clamping plate seat plate (10) is welded to the mounting plate (4), and the two clamping plates (8) are both welded to the clamping plate seat plate (10).

4. The fire check valve and exhaust duct structure that is easy to disassemble according to claim 3 is characterized in that: A pad (11) located between the two clamping plates (8) is also welded to the clamping plate seat plate (10).

5. The easily disassembled fire check valve and exhaust duct structure according to claim 4, characterized in that: The fixed seat plate (6), the connecting plate (7) and the clamping plate (8) are arranged at two locations on the top and bottom ends of the mounting plate (4), and the two locations are arranged side by side in the horizontal direction.

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