Smoke exhaust fire damper controller with quick assembly structure
By introducing a quick assembly structure using suction cups and magnetic blocks into the smoke exhaust fire damper controller, the problems of low installation efficiency and screw hole misalignment in the existing technology are solved, achieving a fast and stable installation effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIUWU HONGYUAN COOLING & HEATING EQUIP CO LTD
- Filing Date
- 2025-09-03
- Publication Date
- 2026-06-26
AI Technical Summary
The existing smoke exhaust fire damper controller has low installation efficiency and the screw holes are prone to misalignment, resulting in inconvenience in installation.
It adopts a quick assembly structure with fixing components such as suction cups, support rods, discs, horizontal plates and airbags. The airbag stretching creates negative pressure to make the suction cups firmly adhere to the side wall of the box, and the magnetic blocks attract screws to ensure that the screw holes are aligned and the installation is stable.
It enables a fast and stable installation process, avoids screw hole misalignment, and improves installation efficiency and stability.
Smart Images

Figure CN224414860U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of smoke exhaust fire damper controllers, and in particular to a smoke exhaust fire damper controller with a quick assembly structure. Background Technology
[0002] A smoke exhaust fire damper is a fire protection component, usually installed on the duct of a mechanical smoke exhaust system. It is normally open and opens to exhaust smoke in the event of a fire. It closes when the temperature of the smoke in the exhaust duct reaches 280 degrees Celsius and meets the requirements for smoke leakage and fire resistance integrity for a certain period of time, thus playing the role of smoke isolation and fire prevention. The main materials are carbon steel, galvanized sheet, and stainless steel.
[0003] In the existing technology, most smoke exhaust fire damper controllers are fixed on vertical workpieces or boxes. However, four screws are required to align and fix the four corners of the smoke exhaust fire damper controller with the reserved holes in the box. When tightening the first screw, one hand needs to hold the screw and the other hand needs to hold the controller, which makes the installation of the controller slow and may also cause the remaining screw holes on the controller to be misaligned with the screw holes on the box. Utility Model Content
[0004] The purpose of this utility model is to solve the following shortcomings in the prior art: four screws are required to be aligned and fixed at the four corners of the smoke exhaust fire damper controller with the reserved holes on the wall. During the tightening of the first screw, one hand needs to hold the screw and the other hand needs to hold the controller, which makes the installation of the controller slow and may also cause the remaining screw holes on the controller to be misaligned with the screw holes on the wall. Therefore, a smoke exhaust fire damper controller with a quick assembly structure is proposed.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A smoke exhaust fire damper controller with a quick assembly structure includes a housing and a base plate, wherein the base plate is fixedly connected to one side of the housing;
[0007] A groove is provided on the base plate, and a fixing component is installed in the groove. The fixing component includes a suction cup, a support rod, a disc, a second spring, and a horizontal plate. The horizontal plate is slidably connected in the groove. Multiple second springs are fixedly connected between the horizontal plate and the bottom wall of the groove. A disc is fixedly connected between the bottom walls of the groove. One end of the support rod is fixedly connected to the horizontal plate, and the other end of the support rod away from the horizontal plate is slidably connected in the disc.
[0008] Preferably, a fixing plate is fixedly connected to each side of the base plate, an airbag is fixedly connected to the fixing plate, a connecting tube is fixedly connected between the airbag and the suction cup, and a round hole is opened on the inner wall of the suction cup.
[0009] Preferably, a movable plate is slidably connected to each side of the base plate, and a plurality of first springs are fixedly connected between the movable plate and the fixed plate.
[0010] Preferably, the end of the airbag furthest from the fixed plate is fixedly connected to the movable plate.
[0011] Preferably, each of the four corners of the base plate is fixedly connected with a protrusion, and the protrusion has a through hole.
[0012] Preferably, square blocks are fixedly connected to both ends of the movable plate, and a magnetic block is fixedly connected to one side of the square block. An arc-shaped groove is opened on the magnetic block, and the magnetic block is disposed on one side of the through hole.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. When the airbag is stretched, the inside is under negative pressure, which allows the suction cup to adhere tightly to the side wall of the outer casing, thereby fixing the base plate and the outer shell. This prevents the outer shell and the base plate from shifting when the screws are tightened, ensuring that the through hole on the protrusion is always aligned with the reserved hole on the side wall of the outer casing.
[0015] 2. Multiple screws are placed on the through holes on the protrusions. Since the magnetic block is located on one side of the screw, it can attract the screw, preventing the screw from falling off. It also makes it easy for the assembly personnel to rotate the screw to the side wall of the outer enclosure, so as to stably fix the base plate and the outer shell to the side wall of the outer enclosure. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the back structure of a smoke exhaust fire damper controller with a quick assembly structure proposed in this utility model;
[0017] Figure 2 This is a front view of a smoke exhaust fire damper controller with a quick assembly structure proposed in this utility model.
[0018] Figure 3 for Figure 2 A magnified schematic diagram of the structure of part A in the diagram;
[0019] Figure 4 This is a schematic diagram of the disc structure of a smoke exhaust fire damper controller with a quick assembly structure proposed in this utility model.
[0020] In the diagram: 1. Outer shell, 2. Base plate, 3. Suction cup, 4. Fixing plate, 5. Protrusion, 6. Airbag, 7. Moving plate, 8. First spring, 9. Square block, 10. Magnetic block, 11. Horizontal plate, 12. Connecting tube, 13. Second spring, 14. Support rod, 15. Disc. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.
[0023] Reference Figure 1 , 3 A smoke exhaust fire damper controller with a quick assembly structure includes a housing 1 and a base plate 2. The base plate 2 is fixedly connected to one side of the housing 1. The housing 1 is the housing of the smoke exhaust fire damper controller. Protrusions 5 are fixedly connected to the four corners of the base plate 2, and through holes are opened on the protrusions 5.
[0024] Reference Figure 1 , 4 The base plate 2 has a groove, and the suction cup 3 can move into the groove to make the base plate 2 fit against the outer wall of the outer box. The groove is equipped with fixing components, including the suction cup 3, the support rod 14, the disc 15, the second spring 13, and the horizontal plate 11. The horizontal plate 11 is slidably connected in the groove. Multiple second springs 13 are fixedly connected between the horizontal plate 11 and the bottom wall of the groove. The disc 15 is fixedly connected between the bottom walls of the groove. One end of the support rod 14 is fixedly connected to the horizontal plate 11. The support rod 14 can slide a short distance in the disc 15. When the suction cup 3 is attracted and fixed to the side wall of the outer box, it can push the base plate 2 or the outer shell 1 to achieve a slight offset, so that the base plate 2 and the outer shell 1 can be finely adjusted until the through hole on the protrusion 5 is aligned with the reserved hole. The end of the support rod 14 away from the horizontal plate 11 is slidably connected in the disc 15.
[0025] Reference Figure 1 , 24. Fixing plates 4 are fixedly connected to both sides of the base plate 2. Airbags 6 are fixedly connected to the fixing plates 4. A connecting pipe 12 is fixedly connected between the airbags 6 and the suction cup 3. A round hole is opened on the inner wall of the suction cup 3. The gas in the airbags 6 can enter the suction cup 3 through the connecting pipe 12 and be discharged through the round hole. Similarly, the gas in the suction cup 3 can enter the airbags 6 through the round hole and the connecting pipe 12, thereby achieving a negative pressure effect inside the suction cup 3, so that the suction cup 3 can be tightly adsorbed on the side wall of the box. Moving plates 7 are slidably connected to both sides of the base plate 2. Multiple first springs 8 are fixedly connected between the moving plates 7 and the fixing plates 4. The end of the airbag 6 away from the fixing plate 4 is fixedly connected to the moving plate 7. Square blocks 9 are fixedly connected to both ends of the moving plates 7. A magnetic block 10 is fixedly connected to one side of the square block 9. An arc-shaped groove is opened on the magnetic block 10. The magnetic block 10 is located on the side of the through hole.
[0026] In this utility model, when in use, refer to Figure 2 First, press the moving plate 7 towards the fixed plate 4 and compress the first spring 8. At the same time, compress the airbag 6 so that the gas in the airbag 6 enters the suction cup 3 through the connecting tube 12 and is discharged through the round hole. Then, align the through hole on the protrusion 5 with the reserved hole on the box body. Since the suction cup 3 protrudes outside the bottom plate 2, press the outer shell 1 until the bottom plate 2 is attached to the outer surface of the box body. The suction cup 3 is attached to the side wall of the outer box body and the second spring 13 is compressed. At this time, the suction cup 3 is in the groove.
[0027] Then, the movable plates 7 on both sides of the base plate 2 are released. The movable plates 7 are reset and moved under the elastic force of the first spring 8 and tend to stretch the airbag 6. Since the airbag 6 is connected to the suction cup 3 through the connecting tube 12, the airbag 6 is under negative pressure when it is stretched, which makes the suction cup 3 firmly adhere to the side wall of the outer box, thereby achieving the effect of fixing the base plate 2 and the outer shell 1. This prevents the outer shell 1 and the base plate 2 from shifting when the screws are tightened, so as to ensure that the through hole on the protrusion 5 is always aligned with the reserved hole on the side wall of the outer box.
[0028] Then, multiple screws are placed on the through holes on the protrusion 5. Since the magnetic block 10 is located on one side of the screw, it can attract the screw, preventing the screw from falling off. It also makes it easy for the assembly personnel to rotate the screw to the side wall of the outer box, so as to stably fix the base plate 2 and the outer shell 1 to the side wall of the outer box.
[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly.
[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A smoke exhaust fire damper controller with a quick-assembly structure, comprising a housing (1) and a base plate (2), characterized in that, The base plate (2) is fixedly connected to one side of the outer shell (1); The base plate (2) has a groove, and a fixing component is installed in the groove. The fixing component includes a suction cup (3), a support rod (14), a disc (15), a second spring (13), and a horizontal plate (11). The horizontal plate (11) is slidably connected in the groove. Multiple second springs (13) are fixedly connected between the horizontal plate (11) and the bottom wall of the groove. The disc (15) is fixedly connected between the bottom walls of the groove. One end of the support rod (14) is fixedly connected to the horizontal plate (11), and the other end of the support rod (14) away from the horizontal plate (11) is slidably connected in the disc (15).
2. A smoke exhaust fire damper controller with a quick-assembly structure according to claim 1, characterized in that, The base plate (2) is fixedly connected to two sides of a fixing plate (4), and an airbag (6) is fixedly connected to the fixing plate (4). A connecting tube (12) is fixedly connected between the airbag (6) and the suction cup (3). A round hole is opened on the inner wall of the suction cup (3).
3. A smoke exhaust fire damper controller with a quick-assembly structure according to claim 2, characterized in that, The base plate (2) is slidably connected to two sides of a movable plate (7), and a plurality of first springs (8) are fixedly connected between the movable plate (7) and the fixed plate (4).
4. A smoke exhaust fire damper controller with a quick-assembly structure according to claim 3, characterized in that, The end of the airbag (6) away from the fixed plate (4) is fixedly connected to the movable plate (7).
5. A smoke exhaust fire damper controller with a quick assembly structure according to claim 3, characterized in that, The base plate (2) is fixedly connected to four corners with protrusions (5), and the protrusions (5) have through holes.
6. A smoke exhaust fire damper controller with a quick-assembly structure according to claim 5, characterized in that, The movable plate (7) is fixedly connected to two square blocks (9) at both ends. A magnetic block (10) is fixedly connected to one side of the square block (9). An arc-shaped groove is opened on the magnetic block (10). The magnetic block (10) is located on one side of the through hole.