An electric reset type smoke and fire damper

Abstract

The utility model relates to an electric reset type smoke and fire damper. When three blocking blades are on the same straight line, the side sealing plates on both sides are fitted to the blocking blades on both sides to enhance the sealing performance, and the two blocking strips are located between the three blocking blades, and the two blocking blades are in a "Z" shape, which are well fitted with the surfaces of the blocking blades, thereby effectively enhancing the sealing performance in the installation frame to prevent a large amount of smoke from penetrating the interior of the installation frame; a smoke sensor senses that there is a large amount of smoke in the installation frame, sends a signal to the controller body, and starts a buzzer, and at the same time starts an electric push rod to push the push block at the extension end to drive the gear rod to move, because the side of the gear rod with a toothed portion meshes with the surfaces of the three gears, and then pushes the gear rod to achieve synchronous rotation of the three gears, and the gear drives the rotating rod at the axis and the blocking blades on the surface of the rotating rod to rotate, thereby achieving automatic reset.

Description

Technical Field

[0001] The utility model relates to the technical field of fire damper equipment, in particular to an electric reset type smoke and fire damper. Background Art

[0002] Fire dampers are commonly installed in ventilation systems. When thick smoke or fire occurs in a unit, the fire dampers will automatically sense and send an alarm signal to the management office. However, the closed blades inside the fire dampers lack an automatic reset function, which requires manual reset and is inconvenient to use. In addition, the connection between the blades inside the fire dampers is not tight enough, which can easily cause excessive smoke circulation.

[0003] For example, a fire damper (application number: 201820891143.X) includes a valve frame, a blade, an actuator, and a temperature sensor, etc. The blade is installed on the valve frame through a blade shaft, the blade shaft is extended to the outside of the valve frame, a transmission iron sheet is welded on the blade shaft, the transmission iron sheet is connected to the transmission rod through a bearing, the transmission rod is connected to the actuator, and a spring is attached to the transmission rod to increase the transmission force. The utility model avoids the fire damper transmission rod from directly contacting and burning with high-temperature gas during use, resulting in deformation and breakage, and ensures the normal operation of the fire damper.

[0004] The above patented fire damper lacks an automatic reset function when the internal blades are closed, which requires manual reset and is inconvenient to use. In addition, the connection between the internal blades of the fire damper is not tight enough, which can easily cause excessive smoke circulation. Therefore, we need to provide an electric reset type smoke and fire damper. Utility Model Content

[0005] The purpose of the utility model is to provide an electric reset type smoke and fire damper to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electric reset type smoke and fire damper, comprising an installation frame and a smoke sensor installed on the top of the installation frame, three rotating rods are rotatably installed between the top and the bottom of the inner wall of the installation frame, and blocking blades are fixedly installed on the surfaces of the three rotating rods, and a seal is installed inside the installation frame, and the seal is used in conjunction with the blocking blades. The seal is used to better seal the inside of the installation frame, the tops of the three rotating rods pass through the top of the installation frame and are fixedly installed with gears, and a protective cover is fixedly installed on the top of the installation frame, and a control component is arranged inside the protective cover, and the control component is used in conjunction with the gears, and the control component is used to adjust the rotation of the three gears.

[0007] Preferably, the seal comprises side sealing plates fixedly mounted on both sides of the inner wall of the installation frame, a blocking strip is fixedly mounted between the top and bottom of the inner wall of the installation frame, and the surfaces of the two blocking strips fit with the surfaces of the three blocking blades.

[0008] Preferably, the control assembly includes a gear rod slidably mounted inside the protective cover, the side of the gear rod with the toothed portion meshing with the surfaces of the three gears, and a driving member is provided on the side of the gear rod away from the three gears, and the driving member is used to push the gear rod.

[0009] Preferably, the driving member comprises an electric push rod fixedly mounted on the inner wall of the protective cover, a push block is fixedly mounted on one end of the electric push rod, and one side of the push block is fixedly mounted on the surface of the gear rod.

[0010] Preferably, two limit seats are further included, the interiors of the two limit seats are in contact with the surface of the electric push rod, and one side of the two limit seats is fixedly mounted on the inner wall of the protective cover by bolts.

[0011] Preferably, stabilizing seats are fixedly mounted on both sides of the top of the mounting frame by bolts, and the interiors of the two stabilizing seats are movably sleeved with the surface of the gear rod.

[0012] Preferably, both sides of the surface of the gear rod are integrally machined with anti-slip frames, and one side of the anti-slip frame is in contact with the surface of the stabilizing seat.

[0013] Preferably, a controller body is disposed on the top of the protective cover, and a buzzer is disposed inside the controller body, and the controller body is electrically connected to the buzzer, the electric push rod and the smoke detector.

[0014] Preferably, it further comprises a heat insulation plate, wherein the heat insulation plate is arranged between the bottom of the controller body and the top of the mounting frame.

[0015] Preferably, mounting racks are integrally formed on the front and back of the mounting frame, and a plurality of mounting slots are provided inside the two mounting racks.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] When the three blocking blades of the utility model are on the same straight line, the side sealing plates on both sides fit against the blocking blades on both sides to enhance the sealing performance, and the two blocking strips are located between the three blocking blades, and the two blocking blades are in a "Z" shape, which fits well with the surfaces of the blocking blades, thereby effectively enhancing the sealing performance inside the installation frame and preventing a large amount of smoke from penetrating into the interior of the installation frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a three-dimensional diagram of the control component of the utility model;

[0020] Figure 3 It is a three-dimensional diagram of the local structure of the utility model;

[0021] Figure 4 It is a three-dimensional diagram of the sealing element of the present utility model.

[0022] In the figure: 1. installation frame; 2. smoke detector; 3. rotating rod; 4. blocking blade; 5. sealing member; 51. side sealing plate; 52. blocking strip; 6. gear; 7. protective cover; 8. control assembly; 81. gear rod; 82. driving member; 821. electric push rod; 822. pushing block; 9. limit seat; 10. stabilizing seat; 11. anti-drop frame; 12. controller body; 13. buzzer; 14. heat insulation board; 15. mounting bracket; 16. mounting slot. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-4 The utility model provides a technical solution: an electric reset type smoke and fire damper, comprising a mounting frame 1 and a smoke sensor 2 installed on the top of the mounting frame 1, three rotating rods 3 are rotatably installed between the top and the bottom of the inner wall of the mounting frame 1, and blocking blades 4 are fixedly installed on the surfaces of the three rotating rods 3, and a sealing member 5 is installed inside the mounting frame 1, and the sealing member 5 is used in conjunction with the blocking blade 4, and the sealing member 5 is used to provide a better sealing effect on the inside of the mounting frame 1, the tops of the three rotating rods 3 pass through the top of the mounting frame 1 and are fixedly installed with gears 6, and a protective cover 7 is fixedly installed on the top of the mounting frame 1, and a control component 8 is arranged inside the protective cover 7, and the control component 8 is used in conjunction with the gear 6, and the control component 8 is used to adjust the rotation of the three gears 6.

[0025] The sealing member 5 includes side sealing plates 51 fixedly mounted on both sides of the inner wall of the mounting frame 1, and blocking strips 52 are fixedly mounted between the top and bottom of the inner wall of the mounting frame 1, and the surfaces of the two blocking strips 52 fit with the surfaces of the three blocking blades 4. In the present embodiment, when the three blocking blades 4 are in the same straight line, the side sealing plates 51 on both sides fit with the blocking blades 4 on both sides to enhance the sealing performance, and the two blocking strips 52 are located between the three blocking blades 4, and the two blocking blades 4 are in a "Z" shape, which fits well with the surfaces of the blocking blades 4, thereby effectively enhancing the sealing performance inside the mounting frame 1 and preventing a large amount of smoke from penetrating into the interior of the mounting frame 1.

[0026] The control component 8 includes a gear rod 81 slidably mounted inside the protective cover 7, and the side of the gear rod 81 with the teeth meshes with the surfaces of the three gears 6, and a driving member 82 is provided on the side of the gear rod 81 away from the three gears 6. The driving member 82 is used to push the gear rod 81. It should be noted that the driving member 82 is used to drive the gear rod 81 to move and adjust. Since the side of the gear rod 81 with the teeth meshes with the surfaces of the three gears 6, the gear rod 81 is pushed to drive the three gears 6 to rotate synchronously, and the gear 6 drives the rotating rod 3 at the axis and the blocking blade 4 on the surface of the rotating rod 3 to rotate.

[0027] The driving member 82 includes an electric push rod 821 fixedly mounted on the inner wall of the protective cover 7, a push block 822 is fixedly mounted on one end of the electric push rod 821, and one side of the push block 822 is fixedly mounted on the surface of the gear rod 81. In this embodiment, the electric push rod 821 is configured as a high temperature resistant push rod, and the electric push rod 821 pushes the push block 822 at the extension end to drive the gear rod 81 to move, thereby realizing automatic resetting.

[0028] It also includes two limit seats 9, the interior of the two limit seats 9 fits with the surface of the electric push rod 821, and one side of the two limit seats 9 is fixed to the inner wall of the protective cover 7 by bolts. It should be noted that the interior of the two limit seats 9 fits with the surface of the electric push rod 821, and one side of the two limit seats 9 is fixed to the inner wall of the protective cover 7 by bolts, and the two limit seats 9 are used to better fix the electric push rod 821.

[0029] Both sides of the top of the mounting frame 1 are fixed with stable seats 10 by bolts, and the interiors of the two stable seats 10 are movably connected with the surface of the gear rod 81. It is worth noting that both sides of the top of the mounting frame 1 are fixed with stable seats 10 by bolts, and the interiors of the two stable seats 10 are movably connected with the surface of the gear rod 81, and the two stable seats 10 play a certain limiting function on the movement of the gear rod 81.

[0030] Anti-slip frames 11 are integrally formed on both sides of the surface of the gear rod 81, and one side of the anti-slip frames 11 is in contact with the surface of the stabilizing seat 10. By setting anti-slip frames 11 as one piece on both sides of the surface of the gear rod 81, and one side of the anti-slip frames 11 is in contact with the surface of the stabilizing seat 10, the two anti-slip frames 11 on the surface of the gear rod 81 are used to limit the movement of the gear rod 81, thereby preventing the gear rod 81 from driving the blade 4 to rotate excessively.

[0031] A controller body 12 is provided on the top of the protective cover 7, and a buzzer 13 is provided inside the controller body 12. The controller body 12 is electrically connected to the buzzer 13, the electric push rod 821 and the smoke detector 2. It is worth noting that the controller body 12 is electrically connected to the buzzer 13, the electric push rod 821 and the smoke detector 2, and the controller body 12 is used to accurately control other components.

[0032] It also includes a heat insulation board 14 , which is disposed between the bottom of the controller body 12 and the top of the mounting frame 1 . In this embodiment or damping rod, the heat insulation board 14 plays a role in better heat insulation of the controller body 12 .

[0033] The front and back sides of the mounting frame 1 are integrally formed with mounting frames 15, and a plurality of mounting slots 16 are provided inside the two mounting frames 15. By providing the mounting frames 15 integrally formed with the front and back sides of the mounting frame 1, and a plurality of mounting slots 16 are provided inside the two mounting frames 15, it is convenient to install the two mounting frames 15 with external pipes.

[0034] When the three blocking blades 4 of the device are on the same straight line, the side sealing plates 51 on both sides fit the blocking blades 4 on both sides to enhance the sealing performance, and the two blocking strips 52 are located between the three blocking blades 4, and the two blocking blades 4 are in a "Z" shape, which fits well with the surface of the blocking blades 4, thereby effectively enhancing the sealing performance inside the installation frame 1 and preventing a large amount of smoke from penetrating the interior of the installation frame 1;

[0035] The electric push rod 821 pushes the pushing block 822 at the extended end to drive the gear rod 81 to move. Since the side of the gear rod 81 with the teeth is meshed with the surfaces of the three gears 6, the gear rod 81 is pushed to drive the three gears 6 to rotate synchronously. The gear 6 drives the rotating rod 3 at the axis and the blocking blade 4 on the surface of the rotating rod 3 to rotate, thereby realizing automatic resetting.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric reset type smoke and fire damper, characterized in that: include: Mounting frame; Three rotating rods are rotatably mounted between the top and the bottom of the inner wall of the mounting frame, blocking blades are fixedly mounted on the surfaces of the three rotating rods, and the tops of the three rotating rods penetrate the top of the mounting frame and are fixedly mounted with gears; a smoke detector mounted on the top of the mounting frame and a seal mounted inside the mounting frame, the seal being used in conjunction with a blocking blade; and A protective cover is fixedly mounted on the top of the mounting frame, wherein a control component is arranged inside the protective cover, and the control component is used in conjunction with the gears, and the control component is used to adjust the rotation of the three gears.

2. The electric reset type smoke and fire damper according to claim 1, characterized in that: The sealing member comprises: Side sealing plates fixedly mounted on both sides of the inner wall of the mounting frame; A blocking strip fixedly mounted between the top and bottom of the inner wall of the mounting frame; Wherein, the surfaces of the two blocking strips are in contact with the surfaces of the three blocking blades.

3. The electric reset type smoke and fire damper according to claim 1, characterized in that: The control component comprises: a gear rod slidably mounted inside the protective cover, wherein a side of the gear rod having a toothed portion meshes with surfaces of the three gears; and A driving member is arranged on a side of the gear rod away from the three gears, and the driving member is used to push the gear rod.

4. The electric reset type smoke and fire damper according to claim 3, characterized in that: The driving member comprises: An electric push rod fixedly mounted on the inner wall of the protective cover; and A pushing block is fixedly mounted on one end of the electric push rod; wherein one side of the pushing block is fixedly mounted on the surface of the gear rod.

5. The electric reset type smoke and fire damper according to claim 4, characterized in that: It also includes two limit seats, the interiors of the two limit seats are in contact with the surface of the electric push rod, and one side of the two limit seats is fixedly mounted on the inner wall of the protective cover by bolts.

6. The electric reset type smoke and fire damper according to claim 3, characterized in that: Both sides of the top of the installation frame are fixed with stabilizing seats by bolts, and the interiors of the two stabilizing seats are movably sleeved with the surface of the gear rod.

7. The electric reset type smoke and fire damper according to claim 6, characterized in that: Anti-slip frames are integrally processed on both sides of the surface of the gear rod, and one side of the anti-slip frame is in contact with the surface of the stabilizing seat.

8. The electric reset type smoke and fire damper according to claim 1, characterized in that: A controller body is arranged on the top of the protective cover, and a buzzer is arranged inside the controller body. The controller body is electrically connected with the buzzer, the electric push rod and the smoke detector.

9. The electric reset type smoke and fire damper according to claim 8, characterized in that: A heat insulation plate is also included, and the heat insulation plate is arranged between the bottom of the controller body and the top of the mounting frame.

10. The electric reset type smoke and fire damper according to claim 1, characterized in that: The front and back sides of the installation frame are integrally processed with installation racks, and a plurality of installation slots are provided inside the two installation racks.

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