Air leakage detection device for fire damper

Abstract

The utility model provides an air leakage detection device for a fire damper, which belongs to the field of fire dampers and comprises a limit assembly, the limit assembly comprises an installation hopper, a limit frame and a movable frame, the limit frame is fixedly arranged on the inner side of the installation hopper, the movable frame is movably arranged in the installation hopper, and one side of the movable frame is provided with an installation groove; and the fixing assembly comprises a moving plate, a pressing plate and a threaded rod, one end of the threaded rod is rotationally connected to the pressing plate, the threaded rod penetrates through the moving plate and is in threaded connection with the moving plate, and a rotating block is fixedly arranged at the outer end of the threaded rod. The limiting assembly is arranged, the movable frame can be independently replaced to adapt to fire dampers of different specifications, operation is easy and convenient, working efficiency and adaptability are improved, and use cost is reduced; and the fixing assembly is further arranged, so that the fireproof valve can be conveniently fixed, and the practicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of fire damper technology, and in particular to a leakage detection device for fire dampers. Background Technology

[0002] A fire damper leakage detection device, with application number CN201920407010.5, relates to the field of fire damper leakage detection and aims to provide a detection device for testing fire dampers of various sizes. Its key technical features include a combustion furnace, a hot gas extraction detection element, and a fire damper to be tested connected between the combustion furnace and the hot gas extraction detection element. The connecting end of the fire damper to be tested is provided with a connecting protrusion. The air outlet end of the combustion furnace is connected to a circular connecting pipe. The air outlet end of the circular connecting pipe is connected to a transition connecting pipe via an assembly. The transition connecting pipe includes a connecting circular pipe connected to the circular connecting pipe and a transition square pipe connected to the connecting protrusion of the fire damper to be tested via an assembly, thus achieving the purpose of installing fire dampers of different sizes on the hot gas extraction detection element.

[0003] While the aforementioned technology can adapt to fire dampers of different sizes, ensuring adaptability, it involves replacing the appropriate transition square tube and all components fixedly connected to it to fit the fire damper under inspection. This replacement operation is complex, difficult, and inefficient. Furthermore, the large number of compatible components already available increases the cost of use, thus reducing its practicality. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a leakage detection device for fire dampers.

[0005] An embodiment of this utility model provides a leakage detection device for fire dampers, comprising:

[0006] A limiting component, comprising an installation hopper, a limiting frame, and a movable frame, wherein the limiting frame is fixedly disposed inside the installation hopper, the movable frame is movably disposed inside the installation hopper, and an installation groove is provided on one side of the movable frame;

[0007] A fixing component includes a movable plate, a pressure plate, and a threaded rod. One end of the threaded rod is rotatably connected to the pressure plate. The threaded rod passes through the movable plate and is threadedly connected to it. A rotating block is fixedly provided at the outer end of the threaded rod.

[0008] Furthermore, the top and bottom of the mounting bucket are fixedly provided with limit plates, and the limit plates are provided with limit holes. Both ends of the inner side of the movable plate are provided with locking posts, which are movably provided through the limit holes. The other end of the locking post is fixedly provided with a limit block.

[0009] Furthermore, a positioning post is fixedly provided on the inner side of the movable frame, a positioning groove is provided on one side of the limiting frame, and a sealing strip is fixedly provided in both the mounting groove and the outer side of the limiting frame.

[0010] Furthermore, a guide rod is fixedly provided on the pressure plate, and a limit post is fixedly provided at the other end of the guide rod. The guide rod is slidably disposed through the movable plate.

[0011] Furthermore, a handle is fixedly provided on the outer side of the movable frame, and a magnetic block is embedded in the inner side of the movable frame.

[0012] Furthermore, an installation frame is fixedly provided on the installation bucket, and an installation hole is provided through the installation frame.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. A limit component is installed. By pulling out the movable frame, the positioning post and positioning groove are separated, allowing the movable frame to be removed for replacement. The replaced movable frame is then placed into the installation hopper and secured with magnetic blocks. The movable frame can be replaced individually with one that matches the installation groove of the fire damper to be inspected, thus accommodating fire dampers of different specifications. The operation is simple and convenient, improving work efficiency and reducing operating costs.

[0015] 2. A fixing component is provided. The fire damper is inserted into the installation groove, the pressure plate is aligned with the convex edge of the fire damper, and the pressure plate is moved inward by rotating the threaded rod to press against the convex edge of the fire damper. The fire damper is then fixedly connected to the installation hopper. The operation is simple and convenient, and it is easy to fix the fire damper.

[0016] In summary, this utility model features a limiting component that allows for the individual replacement of the movable frame, adapting to different specifications of fire dampers. It is also easy to operate, improving work efficiency and adaptability while reducing operating costs. Furthermore, a fixing component allows for convenient securing of the fire damper, increasing its practicality. Attached Figure Description

[0017] Figure 1 This is a perspective view of an embodiment of the present utility model.

[0018] Figure 2 This is a cross-sectional view of an embodiment of the present utility model.

[0019] Figure 3 This is a schematic diagram of the active frame in an embodiment of this utility model.

[0020] Figure 4 This is a partial schematic diagram of the fixing component in an embodiment of the present utility model.

[0021] In the above attached figures: 1. Installation bucket, 2. Limiting frame, 3. Movable frame, 4. Positioning post, 5. Positioning groove, 6. Installation groove, 7. Sealing strip, 8. Handle, 9. Limiting plate, 10. Limiting hole, 11. Moving plate, 12. Locking post, 13. Limiting block, 14. Pressure plate, 15. Threaded rod, 16. Rotating block, 17. Guide rod, 18. Limiting post, 19. Installation frame, 20. Magnetic block. Detailed Implementation

[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0023] like Figures 1-4 As shown in the figure, this utility model embodiment proposes a leakage detection device for fire dampers, comprising:

[0024] The limiting assembly includes a mounting hopper 1, a limiting frame 2, and a movable frame 3. A mounting frame 19 is fixedly mounted on the mounting hopper 1, and a mounting hole is provided through the mounting frame 19 for connection to a hot gas extraction detection component (same as the comparison document). The limiting frame 2 is fixedly mounted inside the mounting hopper 1, and positioning grooves 5 are provided at each of the four outer corners of the limiting frame 2. The movable frame 3 is movably mounted inside the mounting hopper 1, and positioning posts 4 are fixedly mounted at each of the four inner corners of the movable frame 3. The positioning posts 4 can be inserted into the positioning grooves 5 on the same side to position the movable frame 3. A mounting groove 6 is provided on one side of the movable frame 3 for limiting the fire damper. A handle 8 is fixedly mounted on the outer side of the movable frame 3 for picking up and placing the movable frame 3. A magnetic block 20 is embedded inside the movable frame 3, and the limiting frame 2 is made of metal, allowing the magnetic block 20 to be attracted to the limiting frame 2. Sealing strips 7 are fixedly mounted inside the mounting groove 6 and on the outer side of the limiting frame 2.

[0025] The fixing assembly includes two movable plates 11, two pressure plates 14, and two threaded rods 15. One end of each threaded rod 15 is rotatably connected to a pressure plate 14. A guide rod 17 is fixedly mounted on the pressure plate 14, and a limit post 18 is fixedly mounted on the other end of the guide rod 17. The guide rod 17 slides through the movable plates 11 and guides the pressure plates 14. The threaded rod 15 passes through the movable plates 11 and is threadedly connected to them. A rotating block 16 is fixedly mounted on the outer end of each threaded rod 15 to facilitate rotation of the threaded rod 15.

[0026] Limiting plates 9 are fixedly installed at the top and bottom of the mounting bucket 1. Limiting holes 10 are provided through the limiting plates 9. Both ends of the inner side of the movable plate 11 are provided with locking posts 12. The locking posts 12 are movably installed through the limiting holes 10, allowing the locking posts 12 to move within the limiting holes 10. A limiting block 13 is fixedly installed at the other end of the locking posts 12, which is used to limit the locking posts 12.

[0027] The detailed working process of this utility model is as follows:

[0028] 1. When replacing, pull out the movable frame 3 by using handle 8 to separate the positioning post 4 from the positioning groove 5, and then remove the movable frame 3 for replacement. Replace it with a movable frame 3 that is compatible with the fire damper to be inspected and has mounting groove 6. Then put the replaced movable frame 3 into the mounting hopper 1 and insert the positioning post 4 into the positioning groove 5 on the same side. At the same time, fix it with magnetic block 20.

[0029] 2. When in use, insert the fire damper into the mounting groove 6, then move the moving plate 11 inward through the locking post 12 so that the pressure plate 14 is aligned with the convex edge of the fire damper. Then, rotate the threaded rod 15 through the rotating block 16 to move the pressure plate 14 inward, pressing it against the convex edge of the fire damper and squeezing the two sealing strips 7. Then, in the same way, press the pressure plate 14 at the other end against the convex edge of the fire damper to fix the fire damper to the mounting box 1. After that, it can be tested.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A leakage detection device for fire dampers, characterized in that, include: The limiting component includes an installation bucket (1), a limiting frame (2) and a movable frame (3). The limiting frame (2) is fixedly disposed inside the installation bucket (1), and the movable frame (3) is movably disposed inside the installation bucket (1). An installation groove (6) is provided on one side of the movable frame (3). The fixing component includes a movable plate (11), a pressure plate (14), and a threaded rod (15). One end of the threaded rod (15) is rotatably connected to the pressure plate (14). The threaded rod (15) passes through the movable plate (11) and is threadedly connected to it. A rotating block (16) is fixedly provided at the outer end of the threaded rod (15).

2. The air leakage detection device for a fire damper according to claim 1, characterized in that, in: The top and bottom of the installation bucket (1) are fixedly provided with limiting plates (9), and the limiting plates (9) are provided with limiting holes (10). The inner ends of the moving plate (11) are provided with locking posts (12), and the locking posts (12) are movably provided through the limiting holes (10). The other end of the locking posts (12) is fixedly provided with a limiting block (13).

3. The air leakage detection device for a fire damper according to claim 1, characterized in that, in: A positioning post (4) is fixedly provided on the inner side of the movable frame (3), a positioning groove (5) is provided on one side of the limiting frame (2), and a sealing strip (7) is fixedly provided in the mounting groove (6) and on the outer side of the limiting frame (2).

4. The air leakage detection device for a fire damper according to claim 1, characterized in that, in: A guide rod (17) is fixedly installed on the pressure plate (14), and a limit post (18) is fixedly installed at the other end of the guide rod (17). The guide rod (17) slides through the moving plate (11).

5. The air leakage detection device for a fire damper according to claim 1, characterized in that, in: A handle (8) is fixedly provided on the outside of the movable frame (3), and a magnetic block (20) is embedded in the inside of the movable frame (3).

6. The air leakage detection device for a fire damper according to claim 1, characterized in that, in: An installation frame (19) is fixedly provided on the installation bucket (1), and an installation hole is provided through the installation frame (19).

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