Leak-proof sealing type air conditioner fireproof valve

Abstract

The utility model relates to the technical field of fire fighting, and discloses a leakproof sealing type air conditioner fire damper which comprises a mounting plate, the outer wall of the mounting plate is fixedly connected with a sealing assembly used for preventing the fire damper from leaking, the inner wall of the mounting plate is detachably connected with a threaded column, and the outer wall of the threaded column is in threaded connection with a fixing screw. A fixing rod is slidably connected to the inner wall of the threaded column, an ejector rod is fixedly connected to the top end of the fixing rod, a connecting plate is fixedly connected to the outer wall of the ejector rod, a limiting plate is rotatably connected to the inner wall of the connecting plate, a torsional spring is fixedly connected to the inner wall of the connecting plate, and a reset spring is fixedly connected to the top of the ejector rod. According to the utility model, the installation between the fireproof valve and the air conditioner pipeline is completed by adopting the quick-release structure which is convenient to dismount and mount, so that the dismounting can be rapidly completed when the subsequent dismounting is needed, the subsequent maintenance is convenient, and the maintenance efficiency can be greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of fire protection technology, and in particular to a leak-proof, sealed air conditioning fire damper. Background Technology

[0002] Leak-proof sealing air conditioning fire dampers are devices with excellent sealing performance that effectively prevent leakage and can block the spread of fire and smoke in the event of a fire. They are commonly used in various air conditioning and ventilation systems with fire protection requirements, such as air conditioning ducts in densely populated places like shopping malls, hospitals, and office buildings, as well as industrial plants and large warehouses, to ensure fire safety and reduce fire hazards.

[0003] Air conditioning fire dampers typically consist of a valve body, valve plate, actuator, and temperature sensor. The valve body forms the basic framework, the valve plate controls ventilation and fire isolation, the actuator receives signals to operate the valve plate, and the fusible link melts upon contact with fire to trigger the action. They are usually installed using screw fastening or partial welding, and are mounted on the outside of the duct via a mounting plate.

[0004] In existing technologies, fire dampers are mostly installed using screw fastening or partial welding. Therefore, due to the large number of screws, they need to be found and unscrewed one by one during disassembly. The welded joints are also very strong and difficult to disassemble. Forcibly disassembling them can easily damage the valve body and surrounding components, making subsequent repairs very difficult. To address these issues, a leak-proof, sealed air conditioning fire damper is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a leak-proof, sealed air conditioning fire damper, which aims to improve the problem that existing technologies often use screw fastening or partial welding methods, making disassembly difficult.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A leak-proof, sealing-type air conditioning fire damper includes a mounting plate. A sealing component for preventing leakage of the fire damper is fixedly connected to the outer wall of the mounting plate. A threaded post is detachably connected to the inner wall of the mounting plate. A fixing screw is threadedly connected to the outer wall of the threaded post. A fixing rod is slidably connected to the inner wall of the threaded post. A top rod is fixedly connected to the top of the fixing rod. A connecting plate is fixedly connected to the outer wall of the top rod. A limit plate is rotatably connected to the inner wall of the connecting plate. A return spring is fixedly connected to the top of the top rod.

[0008] As a further description of the above technical solution:

[0009] The sealing assembly includes a fire damper housing, the outer wall of which is fixedly connected to the outer wall of the mounting plate, a rotating rod rotatably connected to the inner wall of the fire damper housing, a sealing plate fixedly connected to the outer wall of the rotating rod, a magnet fixedly connected to the outer wall of the sealing plate, a sealing ring fixedly connected to the outer wall of the mounting plate, and an air conditioning duct fixedly connected to the outer wall of the sealing ring.

[0010] As a further description of the above technical solution:

[0011] The other end of the reset spring is fixedly connected to the inner wall of the threaded column, and the inner wall of the air conditioning pipe is provided with a limit groove, the inner wall of the limit groove is fixedly connected to the inner wall of the limit plate.

[0012] As a further description of the above technical solution:

[0013] A trigger is fixedly connected to the top of the fire damper housing, and a thermal sensor is fixedly connected to the inner wall of the trigger. The thermal sensor is placed inside the fire damper housing.

[0014] As a further description of the above technical solution:

[0015] Another rotating rod is fixedly connected to the top of the sealing plate, and the driving end of the trigger is fixedly connected to the inner wall of the other rotating rod.

[0016] As a further description of the above technical solution:

[0017] A fixing plate is fixedly connected to the outer wall of the sealing plate, and a rotating plate is rotatably connected to the outer wall of the fixing plate.

[0018] As a further description of the above technical solution:

[0019] A second fixing plate is fixedly connected to the outer wall of the first rotating plate, and a connecting rod is fixedly connected to the outer wall of the second fixing plate.

[0020] As a further description of the above technical solution:

[0021] The outer wall of the threaded post is slidably connected to the inner wall of the air conditioning duct, and the outer wall of the fixing screw is in contact with the outer wall of the mounting plate.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the threaded post is inserted into the inner wall of the air conditioning duct through the mounting hole on the mounting plate. The limiting plate rotates inward due to contact with the inner wall of the air conditioning duct. When it contacts the limiting groove, the limiting plate will pop out and lock into the inner wall of the limiting groove of the air conditioning duct due to the action of the torsion spring. Then, the fixing screw is turned to firmly lock the threaded post into the outer wall of the mounting plate. If it is necessary to remove the fire damper from the outer wall of the air conditioning duct, press the fixing rod. The fixing rod drives the limiting plate to rotate. After the limiting plate rotates, twist the fixing rod again to let the fixing rod drive the limiting plate to the other side. Pull the threaded post outward through the fixing screw. The return spring drives the top rod to return to its original position, which is convenient for the next use of the installation component. Compared with the traditional welding or screw installation method, this structure greatly reduces the complexity of installation and disassembly and greatly improves the efficiency of subsequent maintenance.

[0024] 2. In this utility model, since the sealing plate can be made of steel, when the sealing plate rotates, the magnet on the outer wall of the sealing plate will firmly connect the sealing plates together, resulting in a better sealing effect. The sealing ring on the outer wall of the mounting plate can further seal when it is installed inside the air conditioning pipe, resulting in a better sealing effect and enhancing the leak-proof performance of the fire damper. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a leak-proof, sealing type air conditioning fire damper proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the rotating rod of a leak-proof, sealing air conditioning fire damper proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the mounting plate of a leak-proof, sealing type air conditioning fire damper proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the structure of a fixing plate for a leak-proof, sealing type air conditioning fire damper proposed in this utility model;

[0029] Figure 5 for Figure 1 Enlarged view of point A in the middle.

[0030] Legend:

[0031] 1. Mounting plate; 2. Threaded post; 3. Fixing screw; 4. Fixing rod; 5. Limiting groove; 6. Limiting plate; 7. Connecting plate; 8. Connecting rod; 9. Top rod; 10. Return spring; 11. Sealing ring; 12. Fire damper housing; 13. Trigger; 14. Thermal sensor; 15. Magnet; 16. Rotating rod; 17. Air conditioning duct; 18. Fixing plate one; 19. Rotating plate one; 20. Fixing plate two; 21. Sealing plate; 22. Torsion spring. Detailed Implementation

[0032] 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.

[0033] Reference Figure 2 , Figure 3 and Figure 5 This utility model provides an embodiment of a leak-proof, sealing-type air conditioning fire damper, including a mounting plate 1. The mounting plate 1 facilitates the fixed installation of the fire damper on the outer wall of the air conditioning duct 17. A sealing component for preventing leakage of the fire damper is fixedly connected to the outer wall of the mounting plate 1. The sealing component is tightly connected to the mounting plate 1 through a specific connection method, thereby ensuring the overall sealing performance of the fire damper and preventing leakage. A threaded post 2 is detachably connected to the inner wall of the mounting plate 1, allowing for convenient installation or removal of the threaded post 2 from the mounting plate 1.

[0034] The outer wall of the threaded column 2 is threaded with a fixing screw 3. The thread of the fixing screw 3 is compatible with the thread of the outer wall of the threaded column 2. By rotating the fixing screw 3, its position on the threaded column 2 can be adjusted, thereby achieving the corresponding fixing or loosening function. The inner wall of the threaded column 2 is slidably connected with a fixing rod 4. The fixing rod 4 can slide smoothly up and down on the inner wall of the threaded column 2 to meet the position change requirements during subsequent operations. The top end of the fixing rod 4 is fixedly connected with a push rod 9. The push rod 9 facilitates the compression or reset of subsequent components. When the fixing rod 4 moves, it will drive the push rod 9 to move synchronously. The outer wall of the push rod 9 is fixedly connected with a connecting plate 7. The connecting plate 7 is tightly fixed to the outer wall of the push rod 9, and plays a role in connection and force transmission.

[0035] A limiting plate 6 is rotatably connected to the inner wall of the connecting plate 7. The limiting plate 6 can rotate around a specific axis on the inner wall of the connecting plate 7 to achieve switching between different states. A return spring 10 is fixedly connected to the top of the push rod 9. One end of the return spring 10 is firmly fixed to the top of the push rod 9, and it can use its own elasticity to help the relevant components reset in subsequent operations. A fixing plate 18 is fixedly connected to the outer wall of the sealing plate 21. The sealing plate 21 and the fixing plate 18 are connected together by a reliable fixing method, so that the two can move together when moving. A rotating plate 19 is rotatably connected to the outer wall of the fixing plate 18. The rotating plate 19 can rotate around its connection point with the fixing plate 18.

[0036] A fixed plate 20 is fixedly connected to the outer wall of the rotating plate 19. A connecting rod 8 is fixedly connected to the outer wall of the fixed plate 20. The connection between the connecting rod 8 and the fixed plate 20 ensures that the connecting rod 8 can move together when the fixed plate 20 moves. The outer wall of the threaded column 2 is slidably connected to the inner wall of the air conditioning pipe 17. The threaded column 2 can slide along the inner wall of the air conditioning pipe 17 to adapt to position adjustment during installation and other operations. The outer wall of the fixing screw 3 is in contact with the outer wall of the mounting plate 1. After the fixing screw 3 is tightened, its outer wall will be tightly attached to the outer wall of the mounting plate 1, which serves to fix the threaded column 2. The torsion spring 22 is sleeved on the outer wall of the limiting plate 6. The torsion spring 22 uses the limiting plate 6 as a carrier and is sleeved on its outer wall. It uses its own torsion characteristics to assist the limiting plate 6 in realizing corresponding rotation and reset functions.

[0037] Reference Figure 1 , Figure 3 and Figure 4 The sealing assembly includes a fire damper housing 12, which is an outer shell structure designed to house and protect internal components. The outer wall of the fire damper housing 12 is fixedly connected to the outer wall of the mounting plate 1. A rotating rod 16 is rotatably connected to the inner wall of the fire damper housing 12, and the rotating rod 16 can rotate around a certain axis on the inner wall of the fire damper housing 12. A sealing plate 21 is fixedly connected to the outer wall of the rotating rod 16. The connection between the sealing plate 21 and the rotating rod 16 ensures that the rotating rod 16 can drive the sealing plate 21 to rotate together. A magnet 15 is fixedly connected to the outer wall of the sealing plate 21, and the magnet 15 is firmly installed on the outer wall of the sealing plate 21 for subsequent magnetic sealing between the sealing plates 21.

[0038] A sealing ring 11 is fixedly connected to the outer wall of the mounting plate 1. The sealing ring 11 is fixed to the outer wall of the mounting plate 1 by means of fitting or embedding, and plays a sealing role. An air conditioning pipe 17 is fixedly connected to the outer wall of the sealing ring 11. The other end of the return spring 10 is fixedly connected to the inner wall of the threaded column 2, so that the return spring 10 has fixed points at both ends, which can better perform the return function. The inner wall of the air conditioning pipe 17 is provided with a limit groove 5. The limit groove 5 is a groove-shaped structure processed at a specific position on the inner wall of the air conditioning pipe 17, which makes it easy for the limit plate 6 to be inserted into the inner wall of the limit groove 5 to achieve connection. The inner wall of the limit groove 5 is fixedly connected to the inner wall of the limit plate 6. A trigger 13 is fixedly connected to the top of the fire damper housing 12. The trigger 13 is used to receive signals and trigger corresponding actions.

[0039] A thermal sensor 14 is fixedly connected to the inner wall of the trigger 13. The thermal sensor 14 is securely installed on the inner wall of the trigger 13 and placed inside the fire damper housing 12. It is used to monitor the temperature inside the fire damper. When the temperature reaches 70 degrees, it is determined that a fire has occurred and the fire signal is transmitted to the trigger 13. Another rotating rod 16 is fixedly connected to the top of the sealing plate 21. This rotating rod 16 is also firmly connected to the sealing plate 21 and is used to assist the sealing plate 21 in rotating operations. The driving end of the trigger 13 is fixedly connected to the inner wall of the other rotating rod 16. The trigger 13 can drive this rotating rod 16 to rotate through the driving end, thereby driving the sealing plate 21 to perform corresponding actions.

[0040] Working principle: When a fire damper needs to be installed in the air conditioning duct 17, align the mounting plate 1 with the opening of the duct, and then insert the threaded post 2 into the inner wall of the air conditioning duct 17 through the mounting hole on the mounting plate 1. At this time, the limiting plate 6 will rotate inward due to contact with the inner wall of the air conditioning duct 17. When it contacts the limiting groove 5, the limiting plate 6 will pop out and lock into the inner wall of the limiting groove 5 of the air conditioning duct 17 due to the action of the torsion spring 22. Then, turn the fixing screw 3 to firmly lock the threaded post 2 into the outer wall of the mounting plate 1. If it is necessary to remove the fire damper from the outer wall of the air conditioning duct 17, press the fixing rod 4. The fixing rod 4 will drive the limiting plate 6 to rotate. After the limiting plate 6 rotates, turn the fixing rod 4 again to let the fixing rod 4 drive the limiting plate 6 to the other side. Then, pull the threaded post 2 outward through the fixing screw 3. Then, the return spring 10 will drive the top rod 9 to reset for the next use of the installation component.

[0041] When a fire occurs, the thermal sensor 14 detects a temperature of 70 degrees Celsius inside the pipe and determines that a fire has occurred. At this time, the thermal sensor 14 transmits a signal to the trigger 13. The motor inside the trigger 13 drives the sealing plate 21 to rotate. The rotation of the sealing plate 21 drives the rotation of the fixed plate 18, which in turn drives the rotation of the rotating plate 19. The rotation of the rotating plate 19 drives the fixed rod 4 and the connecting rod 8 to rotate. The rotation of the connecting rod 8 simultaneously drives the other sealing plates 21 to rotate together. The rotation of the sealing plates 21 causes the outer walls of the sealing plates 21 to come into contact with each other. Since the sealing plates 21 can be made of steel, the magnets 15 on the outer walls of the sealing plates 21 will firmly connect them magnetically, resulting in a better sealing effect. The sealing ring 11 on the outer wall of the mounting plate 1 can further seal the pipe when it is installed inside the air conditioning pipe 17.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A leak-proof, sealing-type air conditioning fire damper, comprising a mounting plate (1), characterized in that: The outer wall of the mounting plate (1) is fixedly connected to a sealing component for preventing leakage of the fire damper. The inner wall of the mounting plate (1) is detachably connected to a threaded post (2). The outer wall of the threaded post (2) is threadedly connected to a fixing screw (3). The inner wall of the threaded post (2) is slidably connected to a fixing rod (4). The top end of the fixing rod (4) is fixedly connected to a top rod (9). The outer wall of the top rod (9) is fixedly connected to a connecting plate (7). The inner wall of the connecting plate (7) is rotatably connected to a limit plate (6). The inner wall of the connecting plate (7) is fixedly connected to a torsion spring (22). The top of the top rod (9) is fixedly connected to a return spring (10).

2. The leak-proof, sealing-type air conditioning fire damper according to claim 1, characterized in that: The sealing assembly includes a fire damper housing (12), the outer wall of which is fixedly connected to the outer wall of the mounting plate (1), a rotating rod (16) is rotatably connected to the inner wall of the fire damper housing (12), a sealing plate (21) is fixedly connected to the outer wall of the rotating rod (16), a magnet (15) is fixedly connected to the outer wall of the sealing plate (21), a sealing ring (11) is fixedly connected to the outer wall of the mounting plate (1), and an air conditioning duct (17) is fixedly connected to the outer wall of the sealing ring (11).

3. The leak-proof, sealing-type air conditioning fire damper according to claim 2, characterized in that: The other end of the reset spring (10) is fixedly connected to the inner wall of the threaded column (2), and the inner wall of the air conditioning pipe (17) is provided with a limiting groove (5), and the inner wall of the limiting groove (5) is fixedly connected to the inner wall of the limiting plate (6).

4. A leak-proof, sealing-type air conditioning fire damper according to claim 2, characterized in that: A trigger (13) is fixedly connected to the top of the fire damper housing (12), and a thermal sensor (14) is fixedly connected to the inner wall of the trigger (13). The thermal sensor (14) is placed inside the fire damper housing (12).

5. A leak-proof, sealing-type air conditioning fire damper according to claim 4, characterized in that: Another rotating rod (16) is fixedly connected to the top of the sealing plate (21), and the driving end of the trigger (13) is fixedly connected to the inner wall of the other rotating rod (16).

6. A leak-proof, sealing-type air conditioning fire damper according to claim 2, characterized in that: The outer wall of the sealing plate (21) is fixedly connected to a fixing plate (18), and the outer wall of the fixing plate (18) is rotatably connected to a rotating plate (19).

7. A leak-proof, sealing-type air conditioning fire damper according to claim 6, characterized in that: A fixing plate two (20) is fixedly connected to the outer wall of the rotating plate one (19), and a connecting rod (8) is fixedly connected to the outer wall of the fixing plate two (20).

8. A leak-proof, sealing-type air conditioning fire damper according to claim 3, characterized in that: The outer wall of the threaded column (2) is slidably connected to the inner wall of the air conditioning pipe (17), the outer wall of the fixing screw (3) is in contact with the outer wall of the mounting plate (1), and the torsion spring (22) is sleeved on the outer wall of the limiting plate (6).

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