Anti-swing device for closing an over-weight fire door

Abstract

The utility model relates to fireproof door technical field discloses an over -weight fireproof door closing anti -swing device, including door frame, mounting bracket, installation groove, be provided with installation groove on the door frame, and the mounting bracket is fixedly connected in the installation groove, be provided with damping assembly, hydraulic component, buffer assembly on the mounting bracket, and damping assembly sets up in mounting bracket one side, and hydraulic component sets up in mounting bracket another side, and buffer assembly sets up on damping assembly, the utility model discloses through the cooperation of damping assembly, hydraulic component and buffer assembly, reach high -efficient anti -swing effect, and damping assembly utilizes damper and buffer boss when swinging, effectively slows down door body swing speed and absorbs impact force, and hydraulic component drives closing frame through hydraulic rod, and in the door closing process, in advance intervention limit, and actively offset swing tendency, and the buffer rod in buffer assembly, buffer layer and spring, further buffer door body impact, and the three common action, prolongs the life.

Description

Technical Field

[0001] This utility model relates to the field of fire door technology, specifically to a device for preventing the swaying of an overweight fire door during closure. Background Technology

[0002] Chinese patent document CN 218542038 U discloses an automatically closing fire door, including a door frame, a door body, and a closing device. The door frame is a frame with a passage in the middle, and one side of the frame is a pivot side frame with a positioning groove at the upper end. One side of the door body is mounted to the pivot side frame via multiple hinges. The door body can swing to a position to close or open the passage. The closing mechanism includes a housing located in the positioning groove, a drive shaft rotatably mounted on the upper end of a pivot hole in the housing, and spring members whose two ends are respectively connected to the lower end of the housing and the lower end of the drive shaft. When the temperature sensing tube reaches a predetermined temperature, the temperature sensing tube unlocks the locking buckle and releases the elastic force of the spring members. The spring members drive the drive shaft to rotate, which in turn drives the actuating rod to rotate, causing the door body to move towards the closed position. The drive shaft drives the actuating rod to move, thereby moving the door body and realizing the automatic closing of the fire door, thus preventing the spread of fire and improving the safety of the fire door.

[0003] Due to their heavy weight, heavy-duty fire doors are prone to swaying or rebounding during and after closing due to inertia and external impact. However, existing technology lacks buffer components for heavy-duty fire doors, which causes damage to the fire doors during swaying and reduces their service life.

[0004] Therefore, this utility model proposes an anti-sway device for closing heavy-duty fire doors to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide an anti-sway device for closing heavy-duty fire doors, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an anti-sway device for closing an overweight fire door, comprising a door frame, a mounting bracket, and a mounting groove, wherein the door frame is provided with a mounting groove, and a mounting bracket is fixedly connected in the mounting groove;

[0007] The mounting frame is equipped with a damping component, a hydraulic component, and a buffer component. The damping component is located on one side of the mounting frame, the hydraulic component is located on the other side of the mounting frame, and the buffer component is located on the damping component.

[0008] Preferably, the guide frame in the damping assembly is fixedly mounted on one end of the mounting frame, and a damper is provided inside the guide frame.

[0009] Preferably, a connecting plate is slidably connected to one side of the damper in the damping assembly, and a buffer protrusion is fixedly provided at the end of the connecting plate.

[0010] Preferably, the connecting protrusion in the hydraulic assembly is fixedly disposed at the other end of the mounting bracket, and a hydraulic rod is provided on the connecting protrusion.

[0011] Preferably, the rotating shaft in the hydraulic assembly is located at the bottom end of the connecting protrusion, a closing frame is provided on the rotating shaft, the closing frame is connected to the hydraulic rod, and a top block is provided at the end of the closing frame.

[0012] Preferably, a buffer rod is fixedly disposed inside the buffer protrusion of the buffer assembly, a buffer layer is evenly disposed on the buffer rod, and a spring is fixedly sleeved on the outside of the buffer rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: through the coordinated cooperation of the damping component, hydraulic component, and buffer component, a highly efficient anti-swaying effect is achieved. When the fire door swings, the damping component uses a damper and a buffer protrusion to effectively slow down the swing speed of the door and absorb the impact force. The hydraulic component drives the closing frame through a hydraulic rod to intervene and limit the door in advance during the closing process, actively counteracting the swing tendency. The buffer rod, buffer layer, and spring in the buffer component further buffer the door collision and reduce inertial impact. The three components work together to not only reduce the damage to the fire door caused by swinging and extend its service life, but also improve the sealing and stability of the door closure and enhance its fireproof and smokeproof performance. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the damping component and hydraulic component of this utility model.

[0016] Figure 3 This is a schematic diagram of the damping component structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the hydraulic component structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the buffer component structure of this utility model.

[0019] In the diagram: 1. Door frame; 2. Mounting bracket; 3. Mounting groove; 4. Damping assembly; 5. Hydraulic assembly; 6. Buffer assembly; 401. Guide frame; 402. Damper; 403. Connecting plate; 404. Buffer protrusion; 501. Connecting protrusion; 502. Hydraulic rod; 503. Rotating shaft; 504. Closing frame; 505. Top block; 601. Buffer rod; 602. Buffer layer; 603. Spring. Detailed Implementation

[0020] The technical solutions in the embodiments of this utility model will be clearly and completely described below. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Example 1: Please refer to Figures 1-3 An anti-sway device for closing an overweight fire door includes a door frame 1, a mounting bracket 2, and a mounting groove 3. The door frame 1 is provided with a mounting groove 3, and the mounting bracket 2 is fixedly connected in the mounting groove 3. The mounting bracket 2 is provided with a damping component 4, a hydraulic component 5, and a buffer component 6. The damping component 4 is provided on one side of the mounting bracket 2, the hydraulic component 5 is provided on the other side of the mounting bracket 2, and the buffer component 6 is provided on the damping component 4.

[0022] The guide frame 401 in the damping assembly 4 is fixedly installed on one end of the mounting frame 2, and the damper 402 is installed inside the guide frame 401.

[0023] During use, when frequently opened and closed or subjected to sudden external impacts, the heavy-duty fire door is prone to violent rebound or swaying after closing. In this case, the mounting groove 3 on the door frame 1 and the mounting bracket 2 fit tightly together, providing a stable installation foundation for the entire device. Once the fire door shows a tendency to sway, the damper 402 inside the guide bracket 401 will respond first, precisely adjusting the damping force according to the force and direction of the sway. When a slight sway occurs, the damper 402 generates a small damping force for initial intervention; if the sway is violent, the damper 402 instantly outputs a high-intensity damping force to suppress the expansion of the sway amplitude, buying valuable time for the subsequent buffering process.

[0024] Example 2: Based on Example 1, please refer to... Figures 2-4 In the damping assembly 4, a connecting plate 403 is slidably connected to one side of the damper 402, and a buffer protrusion 404 is fixedly provided at the end of the connecting plate 403.

[0025] The connecting protrusion 501 in the hydraulic assembly 5 is fixedly installed on the other end of the mounting bracket 2, and a hydraulic rod 502 is provided on the connecting protrusion 501.

[0026] In use, as the damper 402 generates damping force, the connecting plate 403 slides smoothly within the guide frame 401, causing the buffer protrusion 404 to contact the surface of the fire door. The buffer protrusion 404 is made of a high-elasticity composite material, which has excellent impact absorption performance and can effectively disperse the remaining impact force. At the same time, the hydraulic component 5 starts synchronously, and the hydraulic rod 502 monitors the closing speed and position of the fire door in real time through the pressure sensor. When the fire door is detected to be close to the closed position, the hydraulic rod 502 adjusts the extension and retraction speed according to the preset program to ensure that when the fire door is fully closed, the closing frame 504 is pushed with just the right amount of thrust to start the action, preparing for active limiting and achieving a seamless connection between damping buffer and active intervention.

[0027] Example 3: Based on Example 2, please refer to... Figures 3-5 The rotating shaft 503 in the hydraulic assembly 5 is located at the bottom of the connecting protrusion 501. A closing frame 504 is provided on the rotating shaft 503. The closing frame 504 is connected to the hydraulic rod 502. A top block 505 is provided at the end of the closing frame 504.

[0028] A buffer rod 601 is fixedly installed inside the buffer protrusion 404 in the buffer assembly 6. A buffer layer 602 is evenly distributed on the buffer rod 601. A spring 603 is fixedly sleeved on the outside of the buffer rod 601.

[0029] In use, at the critical moment when the fire door is about to be fully closed, the hydraulic rod 502 pushes the closing frame 504 to rotate precisely around the pivot 503, so that the top block 505 contacts the fire door in advance with an appropriate angle and force. The top block 505 can increase the friction with the door body, further counteracting the swaying tendency of the door body. At the same time, when the fire door collides with the top block 505, the three-level buffer system consisting of the buffer rod 601, the buffer layer 602 and the spring 603 in the buffer protrusion 404 immediately takes effect. The spring 603 is rapidly compressed at the moment of impact, absorbing a large amount of impact energy; the buffer layer 602 further buffers and disperses the impact force through elastic deformation; and the buffer rod 601, with its high-strength support structure, ensures that the entire buffering process is stable and orderly, effectively reducing the collision noise and vibration amplitude of the door body.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heavy-duty fire door closing anti-sway device, comprising a door frame (1), a mounting bracket (2), and a mounting groove (3), wherein the door frame (1) is provided with a mounting groove (3), and the mounting bracket (2) is fixedly connected in the mounting groove (3); Its features are: It includes a damping component (4), a hydraulic component (5), and a buffer component (6). The damping component (4) is disposed on one side of the mounting bracket (2), the hydraulic component (5) is disposed on the other side of the mounting bracket (2), and the buffer component (6) is disposed on the damping component (4).

2. The anti-sway device for closing an overweight fire door according to claim 1, characterized in that: The guide frame (401) in the damping assembly (4) is fixedly installed on one side of the mounting frame (2), and a damper (402) is provided inside the guide frame (401).

3. The anti-sway device for closing an overweight fire door according to claim 2, characterized in that: The damper (402) in the damping assembly (4) is slidably connected to a connecting plate (403) on one side, and a buffer protrusion (404) is fixedly provided at the end of the connecting plate (403).

4. The anti-sway device for closing an overweight fire door according to claim 1, characterized in that: The connecting protrusion (501) in the hydraulic assembly (5) is fixedly installed at the other end of the mounting bracket (2), and a hydraulic rod (502) is provided on the connecting protrusion (501).

5. The anti-sway device for closing an overweight fire door according to claim 4, characterized in that: The rotating shaft (503) in the hydraulic assembly (5) is located at the bottom end of the connecting protrusion (501). A closing frame (504) is provided on the rotating shaft (503). The closing frame (504) is connected to the hydraulic rod (502). A top block (505) is provided at the end of the closing frame (504).

6. The anti-sway device for closing an overweight fire door according to claim 1, characterized in that: A buffer rod (601) is fixedly installed inside the buffer protrusion (404) of the buffer assembly (6), a buffer layer (602) is evenly provided on the buffer rod (601), and a spring (603) is fixedly sleeved on the outside of the buffer rod (601).

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